53results about How to "Multiple design spaces" patented technology

The invention relates to a single-cylinder plug pin type telescopic arm, a crane and a telescoping method of the single-cylinder plug pin type telescopic arm. The single-cylinder plug pin type telescopic arm comprises a basic arm and at least one section of telescopic arm which is sleeved in the basic arm, wherein coaxial central holes are formed in the tails of the telescopic arms; a telescopic oil cylinder is arranged in the central holes and comprises a cylinder rod and a cylinder barrel; at least two cylinder heads are fixedly sleeved outside the cylinder barrel in the longitudinal direction; at least three arm pin holes are respectively formed in the basic arm and the telescopic arm in the longitudinal direction. The single-cylinder plug pin type telescopic arm provided by the invention adopts the telescopic oil cylinder and the at least two cylinder heads; each cylinder head can be used for locking and unlocking the telescopic oil cylinder and any one telescopic arm; in a relay manner, the telescopic arms stretch or shrink; telescoping of the single-cylinder plug pin type telescopic arm is realized; the length of the oil cylinder is reduced; the cylinder diameter and the rod diameter of the oil cylinder are reduced; the cost of the oil cylinder is lowered; the loading weight is reduced; the hoisting capability is improved; the design capability of the crane is improved.

The invention belongs to the technical field of building block toys and provides a multi-dimensional building block toy building set capable of being built freely on front and back sides. The multi-dimensional building block toy building set comprises a first module, wherein a single first short coupling post or a single column, two columns or multiple columns of first short coupling posts are arranged on the front side of the first module, a concave surface is arranged on the back side of the first module, multiple columns of bulging second short coupling posts are arranged on the concave surface, and multiple ribs are arranged on the side walls of the concave surface; the second short coupling posts are distributed as follows: column: the second short coupling posts are uniformly distributed in same columns as the first short coupling posts on the front side as well as in middle of a gap between two adjacent columns; line: in the columns the same as the first short coupling posts on the front side, each second short coupling posts are arranged alternately with the first short coupling posts and located in the middle of a gap between two first short coupling posts. Free building of front and back sides of two modules is realized through the ingenious structural design of the multi-dimensional building block toy building set, and toys with different series and different designs can be built more easily.

The invention is small pushing-force watering trough cocket, which includes a valve body. The valve body is arranged with a water inlet and outlet. The character is: the inlet and the outlet are connected together with pipes; a linkage device and a elastic sealing element are arranged in the cavity of the valve; the linkage device includes moving pushing pole, valve pole and linkage; the valve pole is connected to the linkage, the linkage is fixed on the moving pushing pole, the moving pole, valve pole and the linkage are integrated together; and when the moving pushing pole bears the stress, the valve pole and the linkage move respectively; on the contacting part of the valve body and the valve body, the valve pole is arranged with the elastic sealing element the elastic sealing element and the outlet of the valve body are connected and seals the outlet, and when it bears the stress, it is separated with the outlet. The product in the invention has characters of excellent seal property, high product quality, simple, quick and high efficiency.

The invention provides a display panel, a crystal coating thin film and a display device. The display panel comprises an effective display area and a binding area; the display panel of the binding area comprises a first substrate and at least one row of first pins arranged on one side of the first substrate, wherein the distance of one ends, close to the effective display area, of the two adjacentfirst pins in the same row is larger than the distance of one ends, away from the effective display area; the whole body is of an inverted trapezoid structure with the long edge being close to the effective display area, so that the outermost lead of a fanout area is close to the edge of the display panel; compared with a regular trapezoid structure, with the short side being close to the effective display area, of the pin of the existing binding area, the vertical wire of the fanout area lead is longer, and a lower frame can be realized by shortening the height of the vertical wire; or underthe condition of the same frame, more design spaces can be reserved for other circuit units by shortening the vertical wire height, so that the space utilization rate of the display substrate can beimproved.

The invention relates to the technical field of gas turbines, and particularly discloses a fuel switching device for a multi-fuel combustion chamber of a gas turbine. The fuel switching device comprises a flame tube, a natural gas fuel channel, a synthesis gas fuel channel and a fuel front-end system, wherein the fuel front-end system comprises a natural gas purge system and a synthesis gas purge system; an inlet of the natural gas purge system is connected with a natural gas source; the outlet of the natural gas purge system is connected with the inlet of the natural gas fuel channel; the inlet of the synthesis gas purge system is connected with a medium and low heat value gas source; the outlet of the synthesis gas purge system is connected with the inlet of the synthesis gas fuel pipeline; a natural gas pressure-stabilizing valve is arranged at the upstream of the natural gas purge system; a third control valve is arranged at the downstream of the natural gas purge system; a synthesis gas pressure-stabilizing valve is arranged at the upstream of the synthesis gas purge system; a second control valve is arranged at the downstream of the synthesis gas purge system; and a first control valve is arranged between the downstream of the third control valve and the upstream of the second control valve. According to the fuel switching device, the required effective jet area of the head part of a nozzle when a lot of synthesis gas is jet is effectively reduced.

The invention provides a proportioning method for a multi-element alloy high temperature resistance wire, which comprises the following chemical components by percentage: 28-28.5% of Cr, 6.5-7% of Al, 1.8-2.2% of Mo, 1.5-2% of W, 0.5-0.8% of Co, less than or equal to 0.038% of C, less than or equal to 0.39% of Mn, less than or equal to 0.36% of Si, less than or equal to 0.019% of P, less than or equal to 0.002% of S, 0.13% of RE, 0.12% of Ni, 0.162% of V, 0.17% of Nb, 0.04% of Cu and the balance of Fe. The proportioning method can increase the material resistivity, the application amount of an electrothermal material can be saved, compared with common electrothermal materials, the elongation percentage is lower, the elongation rate of each meter is less than 10mm, the non-deformable characteristic can increase the reliability of various electrical heating elements, furthermore, the service life can be prolonged.

The invention provides a simple effective and reliable full-dimension vector propelling device capable of being applied to stratosphere aerostats in various layouts through proceeding from the reality, using the existing propelling technology and combining the work environment of the stratosphere aerostats. In addition, the invention provides a low-cost and low-structure-load stratosphere aerostat ground model machine scaled vector propelling device through using the existing brushless motor and digital steering engine technology and combining the ground test requirements of the stratosphere aerostats. A detailed structure is shown in the accompanying drawing. The device totally consists of three major parts including a propelling device, a vector rotating mechanism and a connecting mechanism, wherein the propelling device provides in-plane thrust, the vector rotating mechanism provides an in-plane steering moment, a connecting part between the propelling device and the vector rotating mechanism is an industrial stage transmission device, an onboard control system respectively sends control signals to the propelling device and the vector rotating mechanism, the propelling device and the vector rotating mechanism respectively carry out rotating speed and vector angle regulation according to the signals, and further, the vector propelling function of the stratosphere aerostats can be realized.

The invention relates to a terahertz wave electric control modulation method based on a Dirac semimetal microstructure. The method is realized through a terahertz wave modulator based on a Dirac semimetal microstructure. The terahertz wave modulator comprises a polymer flexible substrate, an epitaxial layer, an insulating layer and a Dirac semimetal microstructure, wherein a gold thin layer and achromium thin layer are arranged on the Dirac semimetal microstructure; the chromium thin layer is arranged on the gold thin layer; the epitaxial layer is arranged on the polymer flexible substrate; the insulating layer is arranged on the epitaxial layer; the Dirac semimetal microstructure is an active region of the terahertz wave modulator and is arranged on the insulating layer; and external voltage is applied between the Dirac semimetal microstructure and the epitaxial layer to change the corresponding Fermi level so as to adjust the waveform of the resonance spectral line. Compared with the prior art, the method has the advantages that the amplitude modulation depth and the frequency modulation depth are improved, the manufacturing process is simpler, the feasibility is better, and thelike.

The present invention relates to a feed mechanism for an optoelectronic component testing machine, which mainly comprises: a materials and parts column marshalling device, having an oblique arrangement to allow materials and parts arranged back face up slide to a materials and parts guide groove to-be-taken out position at one side by gravity; a materials and parts turnover device having a first materials and parts suction device which can suck up the materials and parts at the to-be-taken out position, and turn over the materials and parts to maintain a level posture face up; and a materials and parts picking and placing device having a second materials and parts suction device capable of delivering the turnover materials and parts in a face up manner to a feed position of the testing machine. The feed mechanism of the present invention allows the spatial arrangement of each component of the overall feeding mechanism more flexible and less clog

The invention provides a vehicle and relates to the technical field of vehicles. The vehicle comprises a vehicle body, a flexible display device, a first camera, a second camera and a controller, wherein the vehicle body is provided with a column A; the flexible display device is arranged on the inner surface of the column A; the first camera is used for collecting first image information of the eyeball state of a driver; the second camera is used for collecting second image information of the outer portion of the vehicle body within the preset range; and the controller is used for analyzing third image information of the outer portion, blocked by the column A, of the vehicle body from the viewing angle of the driver according to the first image information and the second image information. An image of the portion, blocked by the column A, of the vehicle body is displayed on the flexible display device. When driving the vehicle, the driver can be protected against disturbance of lots of blind areas when the sight line is blocked by the column A, so that the driving safety is greatly improved. Meanwhile, during the modeling design on the column A, less factors of blocking the sightline by the column A can be considered. Thus, more design space is provided for the modeling.

The invention discloses a water outlet device with a self-power generating function. The water outlet device comprises a fixing unit, a power generating mechanism, a rapid energy storage element and a control unit. The fixing unit is provided with a water inlet way, at least one first water outlet way and at least one second water outlet way, wherein the first water outlet ways are connected with the water inlet way through electronic control valves, and the second water outlet ways are communicated with the water inlet way. The power generating mechanism is mounted on the fixing unit. The control unit comprises a control circuit and a control module. The control circuit, the rapid energy storage element, the electronic control valves and the power generating mechanism are electrically connected, electric energy generated by the power generating mechanism is rectified and then stored in the rapid energy storage element, and the control circuit obtains the electric energy through the rapid energy storage element and controls opening or closing of the electronic control valves. The electric energy generated by the power generating mechanism is stored in the rapid energy storage element first and then output, the enough electric quantity for the control circuit to control opening and closing of the electronic control valves can be provided, energy is saved, and the environment is protected; circulating charging and discharging can be achieved, the service life is long, and potential safety hazards are avoided.

The invention discloses an automobile air conditioner air outlet adjusting device. The device comprises a first ventilation pipe and a second ventilation pipe, wherein one end of the first ventilationpipe communicates with an air outlet of an automobile air conditioner main machine, the other end of the first ventilation pipe communicates with one end of the second ventilation pipe, the other endof the second ventilation pipe leads to a cab, and an air outlet adjusting structure arranged on the second ventilation pipe can adjust the shape of the second ventilation pipe. The invention furtherdiscloses an air conditioner applying the air outlet adjusting device. According to the automobile air conditioner air outlet adjusting device, an existing automobile air conditioner air outlet ductwith a fixed shape is adjusted into an air conditioner air outlet duct comprising the second ventilation pipe with the shape capable of being changed under the action of external force, and the air outlet adjusting structure is arranged to adjust the shape of the second ventilation pipe, so that the purpose of changing the air outlet direction of the air conditioner is achieved, traditional guideblades are omitted, airflow distribution resistance is reduced, airflow noise is lowered, attractiveness is not affected, and more design space is reserved for automobile engineering development.

The invention relates to a mobile phone protective cover with a frequency-modulated (FM) signal emission module and a system thereof, which relate to the field of mobile phone protective cover technologies and third-party applications and solve the problem of technical deficiencies for connections between mobile phones and vehicle-mounted audios. The mobile phone protective cover mainly comprises a left side frame, a right side frame, an upper side frame and a lower side frame. The mobile phone protective cover is characterized in that: the mobile phone protective cover further comprises the FM signal emission module which is connected with a plug connector and is used for converting voice frequency signals of a mobile phone into FM signals; and the FM signal emission module comprises an FM emission unit and a control unit, wherein the FM emission unit is used for being connected with the audio output end of the mobile phone, converting the voice frequency signals of the mobile phone into the FM signals and transmitting the FM signals to an FM signal receiving device, and the control unit is used for being connected with the control signal output end of the mobile phone and for regulating the frequency of the FM signals of the FM emission unit according to control signals outputted by the mobile phone. A power source is not needed to be individually arranged, thus the volume of the mobile phone protective cover with the FM signal emission module is reduced; the emission frequency of the FM signals is freely controlled by a regulation and control program in the mobile phone, thus the mobile phone protective cover with the FM signal emission module has strong controllability; and connecting wires are not needed, so that the mobile phone protective cover with the FM signal emission module has a simplified structure and is convenient to use.

The invention discloses a mini-host computer CPU radiator. The mini-host computer CPU radiator comprises a mini-computer host case and a compressor. A water-cooling heat dissipation device is arrangedat the CPU, and a water inlet pipe and a first water outlet pipe are connected to the water-cooling heat dissipation device; the water inlet pipe penetrates through the mini computer host case to beconnected with the compressor, and an expansion valve is arranged on the water inlet pipe; a heat dissipation coil is arranged on the outer side of the mini computer host case, one end of the heat dissipation coil is connected with the first water outlet pipe, and the other end of the heat dissipation coil is connected with the compressor through a second water outlet pipe; a first separable valvegroup and a second separable valve group are respectively arranged on the second water outlet pipe and the water inlet pipe; the separable valve set comprises a first valve and a second valve, a first flange is arranged on the right side of the first valve, a second flange is arranged on the left side of the second valve, and the first valve and the second valve are hermetically connected throughflanges; cooling media are arranged in the compressor and the water pipes. The LED lamp has the advantages of being small in size and good in heat dissipation performance.

The invention discloses a temperature control adjusting device used for an electric oven. An adjusting knob of the temperature control adjusting device is located on the side of a shell, appearance is attractive, design is more flexible, and the appearance of the oven has better design sense. The adjusting knob can be far away from a heat source when operated. The temperature control adjusting device used for the electric oven comprises the shell, a double-metal-piece temperature control switch is arranged in the shell, an adjusting shaft of the double-metal-piece temperature control switch moves up and down during rotation, a temperature detection bar of the double-metal-piece temperature control switch is at least partly exposed out of the shell, the adjusting shaft of the double-metal-piece temperature control switch moves up and down during rotation and is further fixedly provided with a conical gear, the shell is internally and rotationally provided with an adjusting rotary sleeve located on the side of the adjusting shaft, the adjusting rotary sleeve is partly exposed out of the side of the shell and provided with an arc part, and the arc part is provided with a tooth part meshed with the conical gear so that the conical gear can be driven when the adjusting rotary sleeve is rotated.

A wearable device charging control method comprises the steps: sampling the real-time operation temperature of a main chip; judging whether the real-time running temperature of the main chip meets anallowable charging condition or not; if yes, conducting at least one charging branch between the battery and the charger according to the real-time operation temperature of the main chip to form a charging path, wherein the higher the real-time operation temperature of the main chip is, the smaller the resistance value of the gated charging path is. A wearable device is also provided. According tothe invention, the allowable charging condition of the battery is judged by using the real-time running temperature of the main chip; a charging branch between the battery and the charger is conducted according to the real-time operation temperature of the main chip to form a charging path; the battery is charged only at the safe charging temperature, and a control mode that the higher the real-time operation temperature of the main chip is, the larger the charging current is formed at the safe charging temperature, so that the working performance of the battery in a complete working temperature interval is fully exerted, the battery under a low-temperature charging condition is protected, the performance is reliable, and the hardware cost is saved.

The invention discloses a capacitive pen and a manufacturing method thereof. The capacitive pen comprises a support, a first antenna and a second antenna being arranged on the surface of the support,one of the first antenna and the second antenna being a transmitting antenna used for transmitting signals, and the other one of the first antenna and the second antenna being a receiving antenna usedfor receiving signals, the signals comprising inclination angle information of a pen point of the capacitance pen; a pen point, arranged at one end of the support, and the first antenna and the second antenna being arranged close to the pen point; a control panel, arranged in the support, and the first antenna and the second antenna being electrically connected with the control panel. According to the capacitive pen provided by the embodiment of the invention, the inclination angle detection and correction precision can be improved, the assembly difficulty is reduced, and the reliability andconsistency of the capacitive pen are further improved.

The invention discloses a decorative film. The film comprises a substrate layer, wherein the substrate layer has fluorescence, a unidirectional film layer is arranged on the upper surface and / or thelower surface of the substrate layer, a first pattern is arranged on the unidirectional film layer, and a second pattern is arranged on the substrate layer. When in use, the decorative film presents the first pattern under natural illumination and presents a second pattern under flash exposure, wherein the illumination intensity of first illumination is less than that of second illumination. According to the film, even if observation angles of observers are the same and an ambient temperature is not changed, the decorative film can generate different visual effects caused by the first patternand the second pattern under the condition of natural illumination and flash exposure, so that more design space is provided for designers.

The invention discloses a ceramic substrate circuit board and a manufacturing method thereof. The manufacturing method comprises the following steps: step one, embedding palladium-silver slurry in a ceramic substrate through a sintering process to form a palladium-silver pad; and step two, attaching an antioxidation material on the surface, which is away from the ceramic substrate, of the palladium-silver pad to form an antioxidation layer through an electroplating technology. The ceramic substrate circuit board and the manufacturing method thereof, provided by the invention, can effectively improve the antioxidation performance and the wear resistance of the ceramic substrate circuit board and prolong the service life of the ceramic substrate circuit board; the antioxidation layer is attached to the palladium-silver pad through the electroplating technology so that the structure of the antioxidation layer is more flat and stable, and the overall performance of the ceramic substrate circuit board can be effectively improved; and since a solder tin layer is omitted from between the antioxidation layer and the palladium-silver pad, the thickness of the ceramic substrate circuit board can be effectively reduced, and more design space is provided for electronic products manufactured by use of the circuit board.

The invention discloses a structure integrated with an air filter and an engine decorative cover. The structure includes the air filter including an upper casing, a lower casing and a filter core disposed between the upper casing and the lower casing, wherein the upper casing includes an upper casing bottom cover and an engine trim cover on the upper casing bottom cover, and the upper casing bottom cover and the engine trim cover are combined to form the closed cavity structure. The structure is advantaged in that the engine trim cover is integrated on the upper casing bottom cover of the airfilter, the space utilization rate is improved under the premise of taking the basic performance of the air filter into consideration, and the more space is left for overall layout of a front compartment of a car.

A method for obtaining merchant business data by recognizing product identification comprises the steps that (A) an image of the product identification to be checked is obtained; (B), an edge image of the product identification to be checked is generated according to the image of the product identification to be checked; (C), the edge image of the product identification to be checked is compared with a pre-stored edge image of standard product identification to judge whether the edge image of the product identification to be checked is matched with the pre-stored edge image of the standard product identification or not, if yes, the step (D) is executed, and if not, the step (E) is executed; (D) the merchant business data relevant to the edge image of the standard product identification are obtained; (E) information used for reminding an obtaining failure is given. The merchant business data can be easily and conveniently obtained by recognizing the product identification through the method, and the merchant business data are convenient to maintain. The invention further relates to a system for obtaining the merchant business data by recognizing the product identification.

The invention provides a design method of a spectrum-adjustable LED artificial sunlight lighting system. The design method comprises the steps: 1) designing a spectrum-adjustable light source, including design of an LED light source module and a color temperature control algorithm; 2) designing illumination optical systems, including primary optical design, focusing system design, secondary mixed light design and diffuse reflection backlight design. According to the design method provided by the invention, based on the non-imaging optical theory, an integrated optical-electromechanical system is designed, and more design space and degree of freedom are provided for design of the optical system; compared with the traditional design method, single wavelength design is changed to multi-wavelength design, so that the light quality of the light source passing through the designed optical system is improved greatly; two kinds of emergent light are obtained through design of the spectrum-adjustable light source and the secondary optical design of the light source, one kind of the emergent light is direct light similar to the solar spectrum, and the other kind of emergent light is diffuse reflection backlight similar to outer space; and the problem of the diffuse reflection backlight uniformity is solved skillfully, and the direct light uniformity is improved greatly.

The invention relates to a single-cylinder plug pin type telescopic arm, a crane and a telescoping method of the single-cylinder plug pin type telescopic arm. The single-cylinder plug pin type telescopic arm comprises a basic arm and at least one section of telescopic arm which is sleeved in the basic arm, wherein coaxial central holes are formed in the tails of the telescopic arms; a telescopic oil cylinder is arranged in the central holes and comprises a cylinder rod and a cylinder barrel; at least two cylinder heads are fixedly sleeved outside the cylinder barrel in the longitudinal direction; at least three arm pin holes are respectively formed in the basic arm and the telescopic arm in the longitudinal direction. The single-cylinder plug pin type telescopic arm provided by the invention adopts the telescopic oil cylinder and the at least two cylinder heads; each cylinder head can be used for locking and unlocking the telescopic oil cylinder and any one telescopic arm; in a relay manner, the telescopic arms stretch or shrink; telescoping of the single-cylinder plug pin type telescopic arm is realized; the length of the oil cylinder is reduced; the cylinder diameter and the rod diameter of the oil cylinder are reduced; the cost of the oil cylinder is lowered; the loading weight is reduced; the hoisting capability is improved; the design capability of the crane is improved.

The invention discloses a heat pump unit with multistage air cavities. The heat pump unit comprises a unit shell. The unit shell comprises a fan cavity for arranging a fan and a heat exchanger and a compressor cavity for arranging a compressor unit, and the heat exchanger is arranged on the side, far away from the compressor unit, of the fan. An air outlet cavity is further formed between the fan cavity and the compressor cavity, and a side air outlet with the air outlet direction perpendicular to the air outlet direction of the fan is formed in the air outlet cavity. By means of the heat pump unit, the direction of an air channel can be effectively changed, vibration and noise generated when air is directly blown out of the heat pump unit from fan blades through an air guide ring and flows through the side air outlet are reduced, noise generated by rotation of the fan is effectively dissipated in the heat pump unit, the overall noise of the heat pump unit is obviously reduced compared with an existing structure, and the heat pump unit runs stably; and as the fan is arranged in the fan cavity, the shape of the side air outlet is variable, the appearance structure can be designed in a diversified manner, and more space is provided for the overall structure design of the heat pump unit.

The invention discloses a baseband signal processing circuit which comprises a level adjusting circuit used for converting input signals into first level signals, a filter circuit used for filtering the first level signals and outputting filtered signals, and a differential circuit used for converting the filtered signals into differential signals. On one hand, the converted signals can be input into a modulation chip directly, so that a DAC chip is eliminated, the cost is lowered, and power consumption is reduced; and on the other hand, as the baseband signal processing circuit provided by the invention can filter signals directly, the complexity caused by arranging of a software filter in an FPGA is lowered, and the logical resource of the FPGA is saved.

The invention discloses a high-strength blended chair swing gear and a manufacturing method thereof, comprising the following steps: S1: designing a matching injection mold according to a pre-designed gear structure, and then processing and manufacturing the injection mold; S2: Fully mix the metal powder and the binder, and then granulate; S3: Inject the granulated mixture into a preform through an injection mold; S4: Put the preform into the extraction liquid, and remove the binder; S5: putting the prefabricated body without the binder into the sintering furnace for sintering to obtain the gear member. The high-strength blended chair swing gear and its manufacturing method provided by the present invention replace the existing aluminum die-casting or zinc die-casting manufacturing process, adopt new metal alloy powder injection molding, and greatly improve the various aspects of the swing gear. Mechanical performance, enriching the structural shape of gear parts, bringing various design styles to chair designers.

The invention discloses a ceramic substrate circuit board and a manufacturing method thereof. The manufacturing method comprises the steps of: step 1, inlaying a palladium-silver paste in a ceramic substrate by adopting a sintering process to form a palladium-silver welding pad; step 2, and attaching an oxidation resistant material to the surface, away from the ceramic substrate, of the palladium-silver welding pad to form an oxidation resistant layer by adopting an electroplating process. The ceramic substrate circuit board and the manufacturing method thereof provided by the invention can effectively improve the oxidation resistance and wear resistance of the ceramic substrate circuit board, prolong the service life of the ceramic substrate circuit board, are more flat and stable in oxidation resistant layer structure by attaching the oxidation resistant material onto the palladium-silver welding pad by adopting the electroplating process, and can effectively improve the overall performance of the ceramic substrate circuit board; and since a tin welding layer is omitted between the oxidation resistant layer and the palladium-silver welding pad, the thickness of the ceramic substrate circuit board can be effectively reduced, and more design space is provided for electronic products manufactured by using the circuit board.

The charging control method of the wearable device includes sampling the real-time operating temperature of the main chip; judging whether the real-time operating temperature of the main chip meets the allowable charging condition; if so, conducting at least one charging branch between the battery and the charger according to the real-time operating temperature of the main chip to form a charging path; wherein, the higher the real-time operating temperature of the main chip is, the smaller the resistance value of the gated charging path is. A wearable device is also provided. The invention uses the real-time operating temperature of the main chip to judge the allowable charging conditions of the battery, and conducts the charging branch between the battery and the charger according to the real-time operating temperature of the main chip to form a charging path. Under the safe charging temperature, the higher the real-time operating temperature of the main chip, the greater the charging current control method, fully exerting the working performance of the battery in the full working temperature range and protecting the battery under low temperature charging conditions, reliable performance and saving hardware cost.

The present invention proceeds from engineering reality, utilizes existing propulsion technology, and combines the working environment of stratospheric aerostats to propose a simple, effective and reliable full-scale vector propulsion device that can be applied to stratospheric aerostats with various layouts. And using the existing brushless motor and digital steering gear technology, combined with the ground test requirements of the stratospheric aerostat, a low-cost, low-structural load scaled vector propulsion device for the ground prototype of the stratospheric aerostat was proposed. See attached drawing for detailed structure. The device is composed of three major parts, including the propulsion device, the vector rotation mechanism and its connecting mechanism. Among them, the propulsion device provides in-plane thrust, and the vector rotation mechanism provides in-plane steering torque. The connecting part between the two is an industrial-grade transmission device. The onboard control system sends control signals to the propulsion device and the vector rotation mechanism respectively, and the two adjust the speed and vector angle respectively according to the signals, so as to realize the vector propulsion function of the stratospheric aerostat.

The invention provides a portable gamepad. The portable gamepad comprises a gamepad main body, a first holding handle and a second holding handle; a first rotating shaft connecting assembly and a first sleeving cavity are arranged on the first holding handle, the first holding handle is connected to one side of the handle body in a sleeving mode through the first sleeving cavity, and the first holding handle is rotatably arranged on the first rotating shaft through the first rotating shaft connecting assembly; a second rotating shaft connecting assembly and a second sleeving cavity are arranged on the second holding handle, the second holding handle is connected to the other side of the handle body in a sleeving mode through the second sleeving cavity, and the second holding handle is rotatably arranged on the second rotating shaft through the second rotating shaft connecting assembly. The first holding handle is rotatably arranged on one side of the handle body through the first rotating shaft, the second holding handle is rotatably arranged on the other side of the handle body through the second rotating shaft, the handle can be switched between an open state and a closed state, and meanwhile, the handle has the advantages of being convenient to operate, good in holding hand feeling, convenient to carry and the like.