41results about How to "Improve IP protection level" patented technology

The invention discloses a concentrated heat radiating type high-power direct-current charger module. The direct-current charger module is used for receiving an output command of an off-board direct-current charger controller and converting three-phase four-wire alternating current into direct current needed by electric vehicles. A main circuit heating power device of the direct-current charger module disclosed by the invention is installed on a heat radiator for concentrated heat radiation, a direct-current charger module controller and a PWM isolation drive circuit are packaged in a heat conduction shell, the heat conduction shell is isolated from the heat radiator to realize heat insulation, and the IP protective level of the controller is improved, so that the reliability is effectively improved; and a direct-current charger circuit adopts an IGBT module or an SIC module, so that the output power and reliability of the direct-current charger module are effectively improved.

The invention discloses a closed heat-dissipating charging pile. A charging module, an internal radiator and internal fans are arranged in an inner chamber of a power cabinet, an external radiator, awater pump and an external fan are arranged outside the power cabinet, the external fan is placed at one side of the external radiator, the internal radiator and the external radiator are communicatedthrough a water pipe, the external radiator and the water pump are communicated through the water pipe, and the internal radiator, the external radiator, the water pump and the water pipe are filledwith cooling liquid. The charging pile uses the cooling liquid for cooling, the cooling effect is improved, and the reliability of charging pile work is improved. By adopting a heat exchange manner for cooling, the charging pile can be made into a closed structure, so that the IP protection level of the charging pile is improved, rainwater and dust are prevented from entering the charging pile, and the reliability of operation of electronic components is improved; the charging pile can be made into the closed structure, so that the security is improved.

The invention belongs to the technical field of unmanned aerial vehicles, and provides a multifunctional portable multi-rotor unmanned aerial vehicle. The multifunctional portable multi-rotor unmannedaerial vehicle includes a rack, a foot frame and at least four rotor assemblies. The rack includes an upper center plate and a lower center plate. The upper part of the upper center plate is providedwith a flight control mounting layer, and the flight control mounting layer is internally provided with a control system. A battery mounting layer is arranged between the upper center plate and the lower center plate, and the battery mounting layer is internally provided with a battery. The battery can be positioned and fixed quickly through a partition plate. The lower part of lower center plateis provided with a task load mounting layer. Load equipment and the lower center plate can be quickly connected and disassembled through a fast replacing device. The rotor assemblies are arranged onthe periphery of the rack and are connected with the rack through a fast horizontal folding device. The foot frame is arranged on the periphery of the rack, and the foot frame and the rack are fast connected and disassembled through a wedge-shaped pipe clamp. The multifunctional portable multi-rotor unmanned aerial vehicle is a multi-rotor remote control vehicle which can be folded, multi-layer arranged and is long in endurance, small in size, multifunctional, quick and convenient to assemble and disassemble, safe and modular and is an industrial unmanned aerial vehicle solution for being fastexpanded and being suitable for different operating conditions.

The invention provides a cabinet structure. The cabinet structure comprises a framework, a cover plate and side plates, wherein the side plates are arranged around the framework. The framework comprises an upper frame and a bottom frame. The framework is formed by connecting the upper frame with the bottom frame through a corner connector and a column profile. The upper frame and the bottom frame are formed by respectively connecting two crossbeam profiles with two longitudinal beam profiles. The column profile is in a symmetrical structure with a sectional split line as the center. The cabinet structure further comprises a dustproof drain connected with the outer wall of the framework. The dustproof drain comprises an end face connected with the outer wall in parallel. The end face transitions to an airfoil through a U-shaped support section. Sealing elements are respectively arranged between the cover plate and the side plate and between the upper frame and the bottom frame. A dust trench is formed by the edge of the cover plate, the edge segment of the side plates and the dustproof drain. A labyrinth seal 1 is formed by the end face, the cover plate and the sealing element. A labyrinth seal 2 is formed by the airfoil, the side plates and the sealing element. Due to the structure design of three seals of the dust trench, the labyrinth seal1 and the labyrinth seal 2, the cabinet structure is provided with good sealing, enough industrial production (IP) level, and therefore the cabinet structure is capable of adapting the harsh industrial environment.

The present invention relates to a high-power DC charging machine, which comprises a circuit breaker, a contactor, a PFC rectifier circuit, a plurality of charging loops and a non-vehicle-arranged DC charging machine controller. The three-phase four-wire AC input voltage is connected with the contactor through the circuit breaker. The output of the contactor is connected with the input end of the PFC rectifier circuit. The output end of the PFC rectifier circuit is divided into a plurality of branches and the plurality of branches are respectively connected with the plurality of charging loops. The output ends of the plurality of charging loops are used for outputting a direct current to an electric automobile, respectively. The contactor, the PFC rectifier circuit and each charging loop are connected with the non-vehicle-arranged DC charging machine controller and are independently controlled. The high-power DC charging machine is simple in structure, wherein the one-machine and multi-gun design is realized. The utilization rate of the DC charging machine is improved. An insulated gate bipolar transistor (IGBT) or an SIC power module is adopted as a key switch element, so that the reliability of the charging machine is improved. The cost of the charging machine is reduced.

The invention discloses a high withstand voltage IGBT DC power distribution based electric vehicle charging station. The high withstand voltage IGBT DC power distribution based electric vehicle charging station comprises a high-voltage circuit breaker, a high-voltage power frequency transformer, a high-voltage DC conversion device and a charger. A three-phase high-voltage input voltage is connected with the high-voltage power frequency transformer through the high-voltage circuit breaker; the output end of the high-voltage power frequency transformer is connected with the high-voltage DC conversion device; and the high-voltage DC conversion device converts a three-phase high-voltage input AC power into a DC power and then supplies to DC power to the charger. By adoption of the high withstand voltage IGBT, the high-voltage DC conversion device realizes power factor correction, LLC full bridge inversion and a DC power distribution scheme of converting the three-phase high-voltage input AC power into the DC power and then supplying the DC power to the charger; and without power factor correction, the design of the DC charging module is simplified, the power density of the DC charging module is improved, the reliability of the charger is improved and the cost of the charger is reduced. In addition, the high withstand voltage IGBT DC power distribution based electric vehicle charging station increases the device IP protection level, improves the working reliability of the device in an outdoor malicious environment and prolongs the service life of the device.

The invention provides a charging device and a stereo garage, and relates to the technical field of automobile charging. The charging device comprises a direct-current control cabinet, a connection terminal, a connector male head, a connector female head, a charging gun and an integrated control platform. The connection terminal and the connector male head are fixedly arranged on a target position of the stereo garage, the direct-current control cabinet is connected with the connection terminal through cables, the connector female head and the charging gun are arranged in an integrated mode, and fixed on a car-carrying board; the direct-current control cabinet is used for converting alternating current power supply to direct current power supply; and the charging gun is used for charging a to-be-charged vehicle on the car-carrying board, when the connector female head is connected with the connector male head, direct current output by the direct current control cabinet charges the to-be-charged vehicle, and the integrated control platform is connected with the direct current control cabinet to be used for monitoring a charging process of the charging device. According to the charging device and the stereo garage, the technical problem that universality of a traditional charging connector installed in the stereo garage is bad is relieved.

The invention discloses a trolley conductor structure for increasing IP protection grade. The structure comprises a wire jacket provided with an opening on the top face and a current collector movably connected to the wire jacket; the current collector comprises an electronic brush box arranged in the wire jacket in a sleeved mode and a flat rectangular junction box; the bottom of the junction box is connected to the top of the electronic brush box, and the top of the junction box extends out of the opening; the left side and the right side of the top face of the wire jacket are provided with an A type bending piece and a B type bending piece respectively, wherein the A type bending piece and the B type bending piece are in an angle steel shape; transverse folding parts of the two bending pieces are relatively opposite; the vertical folding part of the A type bending piece is connected to the right brim opening of the opening on the top of the wire jacket, and the vertical folding part of the B type bending piece is connected to the left vertex of the top face of the wire jacket body; the width of the vertical folding part of the B type bending piece is bigger than that of the vertical folding part of the A bending piece, and the width of the transverse folding part of the B type bending piece is bigger than that of the transverse folding part of the A bending piece; the transversely arranged junction box is connected to the top face of the electronic brush box through a left toward transversely arranged n-shaped three-fold bending piece and then through a stripe-block box. The IP protection grade is higher.

A lithium ion battery module for an electric forklift truck, and a power supply box, which belong to the technical field of lithium ion batteries. The battery module comprises a housing and a batterypack in the housing; the battery pack comprises cells (11), an inter-cell heat insulation sheet (12), and a bottom surface insulating plate (13), a side surface insulating plate (15) and an end surface insulating plate (14) which are at the periphery of the cells (11), and a bus bar support (7) at the top; the cells (11) are square lithium iron phosphate batteries, and are grouped in a mode with each parallel branch having eight cells which are connected in series, a protruding spacer (18) is provided on the surface of the side surface insulating plate (15) and the surface of the bottom surface insulating plate (13), and the bus bar support (7) is provided with an inter-cell (11) connection bar (4) and an end connection bar (6). The power supply box comprises a box body (34), the box body(34) is internally provided with a high-voltage box (35), a BMS and the described lithium ion battery module for an electric forklift truck, a box cover (39) is provided on the box body (34), and an exhaust valve (50) is provided on the box cover (39). The lithium ion battery module and the power supply box both have high reliability in terms of structure and thermal performance.

The invention discloses an outer rotor brushless motor, which comprises a stator assembly, a motor shaft, a plurality of bearings, a rotor assembly and an end cover. The stator assembly is provided with a first annular boss, and an annular concave groove is arranged on the other side of the stator assembly. An annular convex groove is formed in the inner side of the bottom cover of the rotor assembly, and a first groove is formed in the inner side of the side wall thereof. The annular convex groove corresponds to the first annular boss. A second annular boss is arranged on the inner side of the end face of the end cover and a first boss is arranged on the edge thereof. The second annular boss corresponds to the annular concave groove. The first boss corresponds to the first groove. The bottom cover of the rotor assembly comprises a plurality of sets of first heat dissipation holes and a dust blocking plate. The dust blocking plate comprises a plurality of partition walls. According tothe invention, the connection parts of all components of an external rotor brushless motor disclosed by the invention are realized in the convex-concave butt joint manner, so that external foreign matters can be prevented from entering the motor and influencing the service life of the motor. The IP protection level is improved. Meanwhile, the space is fully utilized on all components to form a heat dissipation structure. The heat dissipation efficiency during operation is accelerated, and the service life is prolonged.

The invention discloses a straight cylinder type high-pressure cleaning device and a high-pressure cleaning system. The straight cylinder type high-pressure cleaning device comprises a shell, a driving structure, a circuit structure, a fluid inlet, a fluid outlet and a piston, the piston is driven by the driving structure to move linearly and reciprocally so as to introduce fluid into a pressurizing cavity from the fluid inlet and discharge the pressurized fluid from the fluid outlet, the shell is a straight cylinder which is internally provided with a cavity and extends along a straight line,and an axis of the shell and an axis of a power output shaft of the driving structure are coaxial with or parallel to an axis of the piston. According to the device and the system, the shell is cylindrical, the occupied space can be effectively reduced, and miniaturization production of equipment is facilitated. When in use, a user can hold any position of the shell, so that the load of palms andarms of an operator can be effectively reduced, and the use is convenient; and meanwhile, single-hand operation is conveniently realized, the operation flexibility is greatly improved, meanwhile, double-hand operation is not needed, other operations can be carried out by one hand, and the design is more user-friendly.

The invention provides a plug protection cap. The protection cap comprises a main body, a connecting sleeve and a traction head, a containing cavity is arranged in the main body, the end surface at one end of the main body is provided with an inserting opening communicating with the containing cavity, the inner circumferential surface of the containing cavity, close to the inserting opening, is provided with a locking portion, one end of the connecting sleeve detachably sleeves one end, far from the inserting opening, of the main body, and the other end of the connecting sleeve is rotatably connected with one end of the traction head. The invention also provides an optical fiber connector assembly, an optical fiber plug, and network equipment.

The invention relates to an encoder, and the invention discloses an encoder mounting structure. The encoder mounting structure comprises an encoder stator (1), an encoder rotor (2) and an encoder mounting plate (3), and the encoder rotor (2) is mounted on a motor mandrel through a mounting through hole in the encoder mounting plate (3); and the encoder rotor (2) is located in a cavity defined by the encoder stator (1) and the encoder installation plate (3), and the installation end of the encoder stator (1) is connected with the encoder installation plate (3) through a limiting structure so that the encoder stator (1) can be clamped, sealed and fixed to the encoder installation plate (3). The invention also discloses a motor. According to the invention, miniaturization of the motor is facilitated, the sealing performance of the motor can be ensured, and a high IP protection grade is realized.

The invention discloses a display cable comprising a power line and a signal flat cable, which are of equal length. The power line is arranged at the two sides of the signal flat cable. The display cable further comprises rubber coating which coats the power line and the signal flat cable. As the rubber coating coats the power line and the signal flat cable of a display, the cable is easier to connect and clear in wiring, takes up a smaller space, and has higher level of IP protection.

The invention relates to the technical field of circuit breakers, in particular to a leakage circuit breaker. The leakage circuit breaker comprises a circuit breaker main body, a protective cover and heat sinks, wherein the protective cover is arranged on the circuit breaker main body; the heat sinks are arranged on two sides in the protective cover; and a wiring groove is formed on the protective cover. The leakage circuit breaker provided by the invention has the advantages of simple structure, convenience in use, strong practicability, stable electric performance, good safety and easiness for application and promotion; and the temperature rise of the leakage circuit breaker can be obviously reduced, the IP protective grade of the leakage circuit breaker can be increased, and the performance of the leakage circuit breaker can be improved.

The invention provides an aerosol propellant grain ignition device and a production method. The ignition device comprises a propellant cylinder, and the propellant cylinder is a container for fixationand reaction; an opening is formed in the side wall of the propellant cylinder; a dispensing jig is arranged on the opening in a positioned mode; and a grain is arranged at the bottom of the propellant cylinder through axial positioning structures and a radial positioning structure in a positioned mode. The aerosol propellant grain ignition device and the production method aim to overcome the technological defects of an existing aerosol fire extinguishing device propellant grain in the production process and have the advantages that the aerosol propellant grain can be effectively ignited, meanwhile, the combustion of the aerosol propellant grain can be effectively improved, and the overall structural stability can be ensured.

The invention relates to a recombination current frequency sensor. The frequency sensor comprises a single chip microcomputer module for performing fast Fourier transform computation on an electric signal detected by the sensor to obtain a current value and a frequency value, and converting the electric signal into an analog signal through the internal DAC to output to a signal amplification module; a signal collection module for conditioning and amplifying a signal of a Hall element; a signal amplifying module for performing signal amplification output on the DAC analog quantity output by thesingle chip microcomputer module; and a power supply module for providing a power supply source for the single chip microcomputer, and converting the input power supply voltage into the power supplyvoltage required by the single chip microcomputer module. The Hall element collection waveform is computed by adopting the fast Fourier transform, and the current and the frequency thereof can be computed and measured at the same time; by adopting a closed-loop effect of the Hall effect, the sensor has the features of being high in precision and good in follow-up characteristics. By adopting the internal potting sealing treatment, the sensor has the feature of being high in IP protection level and good in insulation characteristic.

The invention relates to a novel panel device on a ring main unit. The novel panel device comprises an electric mechanism operating device and a manual mechanism operating device, and the electric mechanism operating device comprises button devices and electric mechanism operating holes; the button devices comprise telescopic rods, positioning parts and locking parts, the telescopic rods are mounted in through holes in the positioning parts, the positioning parts are fixed to the locking parts, and the button devices are fixed to the electric mechanism operating holes through cooperation of the positioning parts and the locking parts; the manual mechanism operating device comprises a sliding assembly, a movable groove and sliding positioning grooves, the sliding assembly comprises a sliding piece and a chain ring, the chain ring is fixed on the sliding piece, and the sliding assembly is mounted in the corresponding sliding positioning groove through the sliding piece and moves up and down. The novel panel device is used for improving the IP protection grade of a panel and accords with requirements of bid inviting of the state grid corporation of China to the panel protection IP grade.

The invention discloses an improved junction box for a circulating preheater of a single-cavity permanent magnet rotor pump and belongs to the field of engine preheaters. The improved junction box can be used in preheaters or electric appliances of the same like. The improved junction box aims at improving the ingress protection (IP) level of the like preheaters. The improved junction box is characterized in that the combination portion of a junction box cover and a cavity main body are totally embedded into the cavity main body, an input socket aperture, a water drainage hole with the edge protruded and a terminal hole with the end protruded are arranged at the bottom of the junction box cover, an input socket penetrates through the input socket aperture, and the socket is put downwards. A polyethylene (PE) protection grounding terminal penetrates through the terminal hole to protrude out of the outer lateral surface of the junction box cover and is used for being electrically connected with a vehicle body to enable the vehicle body to be grounded.

The invention provides an intelligent cabinet type reactive power compensation device which comprises a control cabinet and a compensation cabinet I, wherein the control cabinet comprises a cabinet body, an instrument panel, a display instrument, an indicator light, an operating button, an isolation switch operating handle and an electromagnetic lock I; the cabinet body comprises a secondary control room I, a secondary wiring groove, an intelligent controller, a high-voltage circuit breaker, an isolating switch and a high-voltage presence indication device; the compensation cabinet comprises a cabinet body II, a wall bushing, a temperature and humidity controller, a digital ammeter, a flow conveying fan, an electromagnetic lock II and a shutter; and the cabinet body II comprises a surveillance camera, a secondary control room II, a vacuum contactor, a lightning arrester, a current transformer, a discharge coil, a capacitor, an insulator and an electric reactor. According to the device, the reliability is higher, the corrosion resistance is better, the temperature inside the device can be detected in real time, and the operating condition of the device can be monitored remotely; the structure of the device adopts a fully closed structure, and the IP protection grade of the device is improved; and modular arrangement is adopted, standardization, serialization and modularization are achieved, and a user can expand the capacity conveniently.

The invention discloses a trolley conductor structure for increasing IP protection grade. The structure comprises a wire jacket provided with an opening on the top face and a current collector movably connected to the wire jacket; the current collector comprises an electronic brush box arranged in the wire jacket in a sleeved mode and a flat rectangular junction box; the bottom of the junction box is connected to the top of the electronic brush box, and the top of the junction box extends out of the opening; the left side and the right side of the top face of the wire jacket are provided with an A type bending piece and a B type bending piece respectively, wherein the A type bending piece and the B type bending piece are in an angle steel shape; transverse folding parts of the two bending pieces are relatively opposite; the vertical folding part of the A type bending piece is connected to the right brim opening of the opening on the top of the wire jacket, and the vertical folding part of the B type bending piece is connected to the left vertex of the top face of the wire jacket body; the width of the vertical folding part of the B type bending piece is bigger than that of the vertical folding part of the A bending piece, and the width of the transverse folding part of the B type bending piece is bigger than that of the transverse folding part of the A bending piece; the transversely arranged junction box is connected to the top face of the electronic brush box through a left toward transversely arranged n-shaped three-fold bending piece and then through a stripe-block box. The IP protection grade is higher.

The invention belongs to the technical field of unmanned aerial vehicles, and provides a multifunctional portable multi-rotor unmanned aerial vehicle, comprising a frame, a tripod and at least 4 rotor assemblies; the frame includes an upper center plate and a lower center plate, and the upper part of the upper center plate is The flight control installation layer is equipped with the control system. The battery installation layer is between the upper center board and the lower center board. The battery is installed inside. The battery can be quickly positioned and fixed through the partition. The lower center board is equipped with a mission load installation layer. , the load equipment can be quickly connected and removed through the quick change device and the lower center plate; the rotor assembly is arranged around the frame and connected with the frame through a fast horizontal folding device; Pipe clips enable quick connection and removal. The invention provides a foldable, multi-layer arrangement, long battery life, small size, multi-function, fast disassembly and assembly, safety, and modular multi-rotor remote control aircraft, which is an industrial-grade unmanned aerial vehicle that can be rapidly expanded and applied to different working conditions solution.

The invention discloses a cylindrical direct-current vibration motor, and relates to the field of vibration motors. In the use of vibration equipment, a direct-current vibration motor is installed onequipment by using a bottom foot plane or a flange plane, the structure of the motor is relatively complicated, a relatively large installation space needs to be reserved during installation, the costcontrol of the motor and the equipment is not facilitated, and the production cost is increased. A closed cylindrical compact structure motor is formed by a round tube type shell, and a round front end cover and rear end cover; a rotating shaft and an eccentric block are all arranged in the motor; the motor is clamped and installed on the equipment through a hoop; and after the motor is electrified, the motor performs rotation motion through electro-magnetic induction, a rotor drives the eccentric block on the rotor to rotate to generate exciting force. The bottom foot or flange mounting structure of a traditional direct-current vibration motor is omitted, so that the structure is more compact, the size is smaller, and the safety protection grade is higher.

The invention discloses a wire outlet cavity cover plate locking device, comprising an outlet wire cavity body, a wire outlet cavity cover plate, a buckle plate and a locking pin. The buckle plate is rotatably connected to the second end of the wire outlet cavity cover plate, the locking pin is fixed on the wire outlet cavity, and the buckle plate and the locking pin shaft are mutually engaged to lock the wire outlet cavity cover plate and the wire outlet cavity. In the outlet chamber cover locking device, a self-locking structure in which the snap plate is engaged with the detent pin is adopted, and when the outlet chamber cover is opened and closed, no need to carry operating tools, the operation is simple and the efficiency is high. In addition, the cable outlet cavity cover plate and the cable outlet chamber can be tightened more reliably, the risk of waterproof failure is reduced, and the IP protection level of the cable outlet chamber cover plate and the cable outlet chamber is improved. In addition, the manufacturing cost of the locking device for the cover plate of the outlet cavity is also low.

The invention relates to a novel panel device on a ring main unit. The novel panel device comprises an electric mechanism operating device and a manual mechanism operating device, and the electric mechanism operating device comprises button devices and electric mechanism operating holes; the button devices comprise telescopic rods, positioning parts and locking parts, the telescopic rods are mounted in through holes in the positioning parts, the positioning parts are fixed to the locking parts, and the button devices are fixed to the electric mechanism operating holes through cooperation of the positioning parts and the locking parts; the manual mechanism operating device comprises a sliding assembly, a movable groove and sliding positioning grooves, the sliding assembly comprises a sliding piece and a chain ring, the chain ring is fixed on the sliding piece, and the sliding assembly is mounted in the corresponding sliding positioning groove through the sliding piece and moves up and down. The novel panel device is used for improving the IP protection grade of a panel and accords with requirements of bid inviting of the state grid corporation of China to the panel protection IP grade.

The invention discloses a scram button switch which comprises a shell body and a locking device, wherein an operating part is arranged inside the shell body. One end of the operating part is connected with a button, and a reset spring is arranged between the button and the shell body. The other end of the operating part controls contact or non-contact of a dynamic contact and a static contact in a base so as to achieve opening and closing of a circuit. The locking device is arranged between the operating part and the shell body. The locking device is composed of a clamping groove, a locking part and an elastic part, wherein the clamping groove is formed in the shell body, and the locking part and the elastic part are arranged in a horizontal groove of the operating part. The locking part is a long-strip-shaped part, one end of the locking part is a working end, and the working end is adapted to being clamped in the clamping groove under the function of the elastic part and locks the operating part. Under the function of traction / rotation of the button, the locking part quits from the clamping groove and unlocks the operating part. Both ends of the locking part are working ends and arc surfaces. When one end of the locking part is matched with the clamping groove, the one end is suitable for being contacted with the upper end face of the clamping groove. The other end of the locking part is suitable for being contacted with an edge point of the clamping groove. The scram button switch solves the technical problems of complex structure and multiple accessories.

The invention relates to a separation type phase change heat dissipation inversion device which comprises power units and a heat exchanger, wherein each power unit is composed of a shell and a semiconductor power device; a cooling plate is arranged in each power unit, each semiconductor power device is fixed on the corresponding cooling plate, the heat exchanger is located outside the unit shells, a medium outlet of each cooling plate is communicated with an outflow header pipe through an outflow branch pipe, and the outflow header pipe is communicated with an inlet of the heat exchanger; an outlet of the heat exchanger is communicated with a medium inlet of each cooling plate through a backflow main pipe and a backflow branch pipe; and the cooling plates and the heat exchanger are filled with a cooling medium. According to the separation type phase change heat dissipation inversion device, heat generated by the semiconductor power devices can be taken away by utilizing the property that the medium can absorb a large amount of heat while the temperature is not increased during vaporization, so that the junction temperature of the semiconductor power devices is maintained in a proper temperature state, the taken-away heat is dissipated to the external environment through the heat exchanger, and the long-term stable and reliable operation of the inversion device is ensured.