53results about How to "The overall structure is simple and compact" patented technology

The exhaust heat recovery muffler includes a muffler unit having the outer surface thereof covered, an exhaust heat recovery unit disposed integrally with the muffler unit, and a switching valve that switches the flow of exhaust gas into the muffler unit and into the exhaust heat recovery unit. An outer pipe of the muffler unit and a cylindrical shell of the exhaust heat recovery unit, covering the outer circumference of the outer pipe, are coaxially disposed. The exhaust heat recovery unit includes a heat exchange chamber, formed by a pair of partitions provided between the inner circumference of the shell and the outer circumference of the outer pipe, and small-diameter pipes penetrating through the pair of partitions and extending through the heat exchange chamber. A heat exchange medium flows inside of the heat exchange chamber.

The present disclosure includes a protective sleeve assembly and a battery module, wherein the protective sleeve assembly includes a frame and a terminal fixing plate, a terminal circuit board and a connector port are arranged on the terminal fixing plate, an end of a conduction sheet is connected to the terminal circuit board, the other end of the conduction sheet is in a limiting hole of the terminal fixing plate; the battery module includes a upper cover, a lower cover and a charge-discharge control circuit board, a conduction electrode is arranged on the charge-discharge control circuit board and connected with a battery. When the mobile phone is fixed with the protective sleeve assembly, a special port of the mobile phone is transformed into a general port by the conversion circuit of the terminal circuit board, so it's easy to charge the mobile phone by the general port.

Method and apparatus for mounting electronic components in which components are efficiently fed and transferred for enhancing productivity is provided. Tray draw-out device (6) is disposed at a component feeding unit (4) for pulling out a tray (3) accommodating electronic components (2) from the component feeding unit (4) to a given pick-up position, where the electronic components (2) are transferred by the transfer mechanism (11) on to a temporary holder (8) disposed on a draw-out arm (7) of the tray draw-out device (6). Mounting head (5) has a plurality of mounting nozzles (5a), with which the mounting head (5) picks up several electronic components (2) aligned on the temporary holder (8) at a time and mount them on to a circuit board (1) which has been loaded and located at a prescribed position.

The present disclosure includes a protective sleeve assembly and a battery module, wherein the protective sleeve assembly includes a frame and a terminal fixing plate, a terminal circuit board and a connector port are arranged on the terminal fixing plate, an end of a conduction sheet is connected to the terminal circuit board, the other end of the conduction sheet is in a limiting hole of the terminal fixing plate; the battery module includes a upper cover, a lower cover and a charge-discharge control circuit board, a conduction electrode is arranged on the charge-discharge control circuit board and connected with a battery. When the mobile phone is fixed with the protective sleeve assembly, a special port of the mobile phone is transformed into a general port by the conversion circuit of the terminal circuit board, so it's easy to charge the mobile phone by the general port.

The invention provides an electromagnetic gun. The gun tube is provided with multiple hole pairs in the vertical direction of the axis, and each hole pair is composed of two small holes arranged in the opposite side walls of the gun tube. Each copper coil, capacitors, each photoelectric triode and each light emitting diode are connected to one control circuit board; the photoelectric triode and the light emitting diode are respectively arranged in the two small holes of the hole pair of the gun tube; the copper coil wraps the hole pair of the gun tube; the control circuit board and the gun tube are erected on the capacitors; and the gun tube is internally provided with a bullet. The control circuit board is externally connected to a power supply so as to charge the capacitors. When the bullet moves to the hole pair, the control circuit board controls the capacitors to discharge electricity to the copper coil according to the change due to induction signal shielding, and the cooper coil can generate a strong magnetic field to drive the bullet to accelerate. According to the invention, a synchronization problem of multi-stage coils in an acceleration process is solved, the overheating of the coils can be reduced, and the electromagnetic gun is simple and compact in structure, is convenient to operate, is easy to adjust, is low in cost, and is high in stability and reliability.

The invention discloses a polishing tool, belonging to the field of precision optical surface processing. A rotary type magnetic jet polishing device comprises a bracket, a sleeve, a shell, a motor, a motor frame, an adaptor, a rotating shaft, a bearing component, a sealing component, a sprayer, a sprayer nut, a coil rack, a coil, a magnetic isolation component and the like, wherein the sleeve is fixed in the bracket; the rotating shaft is arranged in the sleeve through the bearing component in a rotating manner and is sealed with the sleeve through the sealing component in a rotating manner; the rotating shaft is fixed to a rotor of the motor through the adaptor; the motor is fixed on the sleeve through the motor frame; the sprayer is fixed at the lower end of the rotating shaft through the sprayer nut; a magnetic isolation cavity and a cavity cover work together to clamp the coil and then the magnetic isolation cavity, the cavity cover and the coil are all together fixed at the lower end of the sleeve through the coil bracket; and the shell is fixed to the sleeve. During working, the motor drives the sprayer to rotate, liquid is sprayed out of the sprayer through an inner passage of equipment and then polishes a workpiece after passing through a magnetic field produced by the electrified coil. A polished spot with an area being larger than that of a spraying hole is obtained by rotary spraying of the specially-shaped sprayer and the magnetic jet flow processing efficiency is effectively improved.

An apparatus for the maintenance of wheels of vehicles, like a balancer or a device for mounting / dismounting tires, comprises a support adapted to support a rim of a wheel of a vehicle. A device for detecting the eccentricity of a tire of the wheel is mounted on the support. Such device comprises an optical system configured to capture a light beam reflected by a tread of the tire and focus it on a point of an optical sensor. The optical sensor emits a signal indicative of an average value of a radial distance of the linear portion from the main axis. A control unit processes a plurality of average values corresponding to different linear portions of the tread and obtained during the rotation of the tire, and detects the eccentricity of said tire.

The X-ray-generator irradiates X-rays at a subject. The X-ray-detector detects the X-rays that have permeated the subject. The rotating body on which the X-ray-generator and the X-ray-detector are installed rotates around the subject. The rotating body is rotated by the drive part. The power source supplies electrical power to the drive part.The step-down part lowers the voltage of the regenerative electrical power generated at the drive part during the deceleration of the rotating body. The accumulation part charges the lowered electrical power. The step-up part raises the voltage of the electrical power from the accumulation part and supplies electrical power to the drive part.

An eyeglass-type image display device mounted on an eyeglass frame and has a display element for displaying an image and a light guiding unit for guiding the image light of the image displayed on the display element 15 is provided, wherein at least the light guiding unit is disposed on a limb unit so as to be displaceable to a first position where the light guiding unit is evacuated from the front of one eyeball of the user and to the second position where the light guiding unit extends to the front of the eyeball and the image light exits therethrough toward the eyeball, thereby enabling compact and light-weight structure, reduction in cost, and further enabling the user to wear the eyeglass frame for a long time without feeling that the eyeglass frame is heavy.

In a rectifying circuit, a rectifying diode is configured to rectify a first AC voltage to output a first DC voltage. A protection diode circuit has constant reverse voltage diodes and electrically connected to the rectifying diode in parallel thereto. The constant reverse voltage diodes are electrically connected to each other in series. Each of the constant reverse voltage diodes has a breakdown voltage and a second forward voltage. A sum of the breakdown voltages of the constant reverse voltage diodes is lower than the breakdown voltage of the rectifying diode, and a sum of said second forward voltages is higher than the first forward voltage of the rectifying diode.

The present invention discloses cleaning apparatus and a PV module cleaning system. The cleaning apparatus includes a sweeper, a mobile terminal, a guiding rail and a control system. The mobile terminal is used for bearing the sweeper and walks along the guiding rail under the control of the control system, and the sweeper can move on the mobile terminal under the control of the control system; and the PV module cleaning system includes PV array panels, the PV array panels are m*n matrix, both m and n are positive integers, the guiding rail is located at one side of the PV array panels, the mobile terminal is located above the guiding rail, the sweeper is loaded on the bearing frame of the mobile terminal, and the sweeper reciprocates on the PV array panels through a walking mechanism.

In a power converting apparatus having a plurality of phases on an AC side and configured to perform conversion between DC power and AC power, a current detector detects currents flowing through a DC source line through which a plurality of phase currents commonly flow. A control unit sets a current detection period and a succeeding current control period in each successive control cycle. Using first gate signals based on reference gate signals for PWM control, the control unit calculates values of the individual phase currents from the first gate signals and the detected currents during the current detection period. Then, during the current control period, the control unit performs PWM control using phase voltage commands generated by correcting phase voltage target values so as to cancel out voltage errors that occur during the current detection period.

A charging and communication system includes a potential output terminal for supplying power to a to-be-charged device; a first controller for generating a first control signal; and a first potential switching module for switching a first potential and a second in response to the first control signal. At least one of the first potential and the second potential is a charging potential, so as to supply power to the to-be-charged device. The first potential and the second potential are not equal, so as to communicate information to the to-be-charged device. The complexity of the hardware circuit structure is reduced. The stability and reliability of the circuit structure is improved.

An internally heated roasting oven is composed of machine frame, drive mechanism, transition unit, drum with humidity regulator at both end and heating unit inserted in said drum. Its advantages include high heat efficiency, simple structure, small size, low cost and no environmental pollution.

Arrangement for generating electrical power from a flowing medium, wherein the arrangement includes a plurality of turbine generator units. At least some of the plurality of generator units are arranged at least one of one above another and one beside another. At least some of the plurality of generator units are connected to one another to form at least one module. At least one of the plurality of generator units includes a synchronous generator having permanent magnetic poles for excitation. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

The invention discloses an adult respiratory tract obstruction discharging device for respiratory medicine department, and belongs to the technical field of respiratory medicine department medical care auxiliary equipment. The adult respiratory tract obstruction discharging device for respiratory medicine department comprises a lifting support, wherein a supporting bottom plate is fixedly connected to the bottom of the lifting bracket; a sliding connection clamp is arranged in the lifting bracket; a lifting hanging board is fixedly connected to the top of the sliding connection clamp; a horizontal regulating plate is movably connected to the inner part of the lifting hanging board; and a pressing plate lifting frame is fixedly connected to one side away from the lifting hanging board, of the horizontal regulating plate. According to the adult respiratory tract obstruction discharging device for respiratory medicine department disclosed by the invention, through cooperation and usage ofthe pressing plate lifting frame, a pressing plate connecting frame, a pressing plate, a hydraulic pressure telescopic rod, the horizontal regulating plate and the sliding connection clamp, medical personnel can perform omnidirectional regulation on the adult respiratory tract obstruction discharging device according to requirements, so that the adult respiratory tract obstruction discharging device can quickly and accurately pat or press a user; and the adult respiratory tract obstruction discharging device is simple and compact in integral structure, and is convenient for the medical personnel to operate and can be quickly mounted.

The invention discloses a polishing tool, belonging to the field of precision optical surface processing. A rotary type magnetic jet polishing device comprises a bracket, a sleeve, a shell, a motor, a motor frame, an adaptor, a rotating shaft, a bearing component, a sealing component, a sprayer, a sprayer nut, a coil rack, a coil, a magnetic isolation component and the like, wherein the sleeve is fixed in the bracket; the rotating shaft is arranged in the sleeve through the bearing component in a rotating manner and is sealed with the sleeve through the sealing component in a rotating manner; the rotating shaft is fixed to a rotor of the motor through the adaptor; the motor is fixed on the sleeve through the motor frame; the sprayer is fixed at the lower end of the rotating shaft through the sprayer nut; a magnetic isolation cavity and a cavity cover work together to clamp the coil and then the magnetic isolation cavity, the cavity cover and the coil are all together fixed at the lower end of the sleeve through the coil bracket; and the shell is fixed to the sleeve. During working, the motor drives the sprayer to rotate, liquid is sprayed out of the sprayer through an inner passage of equipment and then polishes a workpiece after passing through a magnetic field produced by the electrified coil. A polished spot with an area being larger than that of a spraying hole is obtained by rotary spraying of the specially-shaped sprayer and the magnetic jet flow processing efficiency is effectively improved.

A fuel cell includes a pair of separators and a plurality of electrolyte electrode assemblies between the separators. The electrolyte electrode assemblies has a small circular disk shape. Eight electrolyte electrode assemblies are arranged along an inner circle and eight electrolyte electrode assemblies are arranged along an outer circle concentric with a circular hole. Each of the separators includes a plurality of plates stacked together. A fuel gas channel for supplying a fuel gas to anodes of the electrolyte electrode assemblies, an oxygen-containing gas channel for supplying an oxygen-containing gas to cathodes of the electrolyte electrode assemblies are formed between the plates.

The invention relates to an arrangement (10) for closing an opening for the input and / or output of notes of a device for handling notes. The arrangement (10) comprises a pivotable shutter element and a rotary solenoid. An armature of the rotary solenoid is connected to the shutter element via a connecting element. In a first position of the armature the shutter element is arranged in a closed position, and in a second position of the armature the shutter element is arranged in an open position.

An X-ray-generator irradiates X-rays at a subject. The X-ray-detector detects the X-rays that have permeated the subject. The rotating body on which the X-ray-generator and the X-ray-detector are installed rotates around the subject. The rotating body is rotated by the drive part. The power source supplies electrical power to the drive part. The step-down part lowers the voltage of the regenerative electrical power generated at the drive part during the deceleration of the rotating body. The accumulation part charges the lowered electrical power. The step-up part raises the voltage of the electrical power from the accumulation part and supplies electrical power to the drive part.

The invention relates to a four-way rocker switch, which comprises a bracket and a switch body, wherein the switch body is fixedly arranged at the bottom part of the bracket; the four-way rocker switch is characterized in that a four-way rocking mechanism is arranged in the bracket; the four-way rocking mechanism comprises a base, a pressing rod, a spring, a rocking bar, a rocker arm and four pressing plates; the pressing rod, the spring, the rocking bar, the rocker arm and the four pressing plates are arranged in the base respectively; the base is fixedly arranged on the switch body; the pressing rod and the spring are inserted into the rocking bar; the rocking bar is arranged on the rocker arm through a rivet in a swinging manner; the four pressing plates all are arranged at the lower part of the rocker arm in the swinging manner; and the four pressing plates are sequentially arranged in a square end to end. The four-way rocker switch has the beneficial effects that the invention aims at providing the four-way rocker switch; the four-way rocking mechanism is arranged in a traditional rocker switch; and the rocker arm is added to the rocking bar, so that the original two-way rocking function can achieve the four-way rocking switching function; the overall structure is simple and compact; the service lifetime of a product is prolonged; and the four-way rocker switch is low in cost, high in control accuracy, convenient to use and high in practicability.

The invention discloses a beam splitting device and a multi-beam interference light path system. The beam splitting device comprises a light blocking mother board, multiple round holes formed in the light blocking mother board, and multiple beam splitting lenses positioned in the multiple round holes. The multiple beams are split through the multiple beam splitting lenses, and the beam splitting device has the advantages of simple principle and adjustable beam splitting effect; and moreover, the generated beam splitting light path is not required to be adjusted by employing multiple branches, so that the multi-beam interference light path system is simple and compact in overall structure and brings novel application prospects to multi-beam interference exposure.

In a power converting apparatus having a plurality of phases on an AC side and configured to perform conversion between DC power and AC power, a current detector detects currents flowing through a DC source line through which a plurality of phase currents commonly flow. A control unit sets a current detection period and a succeeding current control period in each successive control cycle. Using first gate signals based on reference gate signals for PWM control, the control unit calculates values of the individual phase currents from the first gate signals and the detected currents during the current detection period. Then, during the current control period, the control unit performs PWM control using phase voltage commands generated by correcting phase voltage target values so as to cancel out voltage errors that occur during the current detection period.

The invention discloses a high-speed precision pneumatic main shaft. In a turbine shaft (16), a back end bearing (1) and a middle bearing (5) are arranged in a box body (11); the turbine shaft (16) and a turbine (22) are integrated, and the outer diameter of the turbine (22) is not larger than the outer diameter of the turbine shaft (16); a nozzle driven by air current impact corresponding to the turbine (22) is arranged in the box body (11); air outlets (27) are formed at the two ends of the turbine chamber of the turbine (22); in an executing mechanism, a front end bearing (8) is arranged in the box body (11); the turbine shaft (16) is connected with the executing mechanism through an integral micro flexible connecting mechanism. The high-speed precision pneumatic micro main shaft has the advantages of novel and reasonable design, simple and compact structure, small size, simple manufacturing process, high rotating speed and small jumping errors, can be taken as a micro main shaft of a micro machine tool for performing fine cutting and fine grinding as well as a micro main shaft of other electromechanical or manual tool machines revolving at high speeds, ultrahigh speeds and high accuracies, and the like.

Provided is a tandem cone valve capable of avoiding or reducing resistance on a valve switch caused by fluid pressure in a pipeline in the opening or closing stage. The cone valve includes valve rods, valve cores and a valve body. The valve cores include a first valve core and a second valve core. The first valve core and the second valve core are coaxially arranged in a valve core cavity. The outer walls of the valve cores are in the shape of cones; the first valve core and the second valve core are stacked one on the other, the first valve core is provided with a first valve core first flow hole and a first valve core second flow hole which penetrate through the inner wall and the outer wall of the first valve core, and the valve core cavity is provided with a valve core cavity flow hole corresponding to the first valve core first flow hole and the first valve core second flow hole. The cone valve is provided with the second valve core stacked coaxially on the base of the first valve core, and the second valve rod driving the second valve core to rotate is arranged in the first valve rod in a sleeved manner, thus the valve is simple and compact in structure; and the two levels of valve cores can each rotate to open / close the valve level by level, thus reducing momentary resistance when opening and closing a large cone valve.

The invention discloses a bushing torsion test tool which comprises a mounting base and a pressure block, wherein a mounting hole for mounting a bushing is formed in the front side surface of the mounting base; a sensor is fixedly arranged above the mounting base; the pressure block is located above the sensor; a threaded hole is formed in the center of the pressure block; a bolt is arranged in the threaded hole; one end of the bolt pushes against the sensor; a front tie rod ball and a rear tie rod ball are respectively arranged on the front side and the rear side of the mounting hole; the front tie rod ball and the rear tie rod ball are the same in structure; the front tie rod ball comprises a circular ring element and a connecting pole; the upper end of the circular ring element is connected with the pressure block through the connecting pole; a connecting rod is arranged on the front tie rod ball; one end of the connecting rod is in a cylindrical structure, sequentially penetrates through the front tie rod ball, the mounting hole and the rear tie rod ball and finally is fixed; and the other end of the connecting rod is of a cuboid structure and used for connecting a power device. The bushing torsion test tool is simple in overall structure and low in cost; a predetermined load can be accurately applied to the bushing; and then the torsion test is carried out on the bushing.

A five-degree-of-freedom heterodyne grating interferometry system comprises: a single-frequency laser for emitting single-frequency laser light, the single-frequency laser light can be split into a reference light beam and a measurement light beam; an interferometer lens set and a measurement grating for converting the reference light and the measurement light into a reference interference signal and a measurement interference signal; and multiple optical fiber bundles, respectively receiving the measurement interference signal and the reference interference signal, wherein each optical fiber bundle has multiple multi-mode optical fibers respectively receiving interference signals at different positions on the same plane. The measurement system is not over-sensitive to the environment, is small and light, and is easy to arrange. Six-degree-of-freedom ultra-precision measurement can be achieved by arranging multiple five-degree-of-freedom interferometry systems and using redundant information, thereby meeting the needs of a lithography machine workpiece table for six-degree-of-freedom position and orientation measurement.