37results about How to "Enough cooling space" patented technology

The invention discloses an alternating current LED neon lamp belt based on FPCs. The alternating current LED neon lamp belt comprises a power source, a neon lamp belt main body, installation grooves and a tail end assembly, wherein the power source is internally provided with a control circuit, the neon lamp belt main body is connected with the power source through an input end connecting assembly, the installation grooves are used for installing the neon lamp belt main body, and the tail end assembly is located at the tail end of the neon lamp belt main body and used for blocking the neon lamp belt main body. The neon lamp belt main body comprises at least two neon lamp belt bodies which are subjected to extrusion molding through the FPCs, and the adjacent lamp belt bodies are movably connected through a middle end connecting assembly. According to the alternating current LED neon lamp belt based on the FPCs, the input end connecting assembly is arranged between the power source and the neon lamp belt bodies, and the middle end connecting assemblies are arranged between the neon lamp belt bodies, so that plug-pull movable connection between the power source and the neon lamp belt bodies as well as between the neon lamp belt bodies is achieved; and thus, the problem that the size dimension of a traditional neon lamp belt cannot be changed is completely solved, the environment adaptive capacity of the LED neon lamp belt is greatly improved, and the practical value of the LED neon lamp belt is improved.

The invention discloses a high-voltage LED flexible light bar based on an FPC. The high-voltage LED flexible light bar comprises a power supply in which a control circuit is arranged, a flexible light bar structure which is movably connected with the power supply by an input end connecting component, a mounting groove which is buckled at the middle part of the flexible light bar structure, and a tail plug which is blocked at the tail part of the flexible light bar structure, wherein the flexible light bar structure comprises at least two flexible light bars which are formed from FPC by extrusion molding; the adjacent flexible light bars are movably connected with each other by a middle end connecting component. According to the high-voltage LED flexible light bar disclosed by the invention, the input end connecting component is arranged between the power supply and the flexible light bars, and the middle end connecting component is arranged between the flexible light bars, so that plug-in type movable connection between the power supply and the flexible light bars and the plug-in type movable connection between the flexible light bars are realized; thus, the problem that the size of an existing LED light bar cannot be changed is completely solved, the environmental adaptation capability of the LED light bar is greatly improved, and the practical value of the LED light bar is increased.

The invention discloses a subminiature 16A load level double-pole single-throw magnetic latching electromagnetic relay. The magnetic latching electromagnetic relay comprises a base, a cover shell, an electromagnetic system, a contact system and a magnetic pack, wherein the contact system comprises a first movable and static contact group and a second movable and static contact group which are arranged side by side; the magnetic latching electromagnetic relay is characterized in that a horizontal isolation plate and a vertical isolation plate are integrally arranged on the base; the vertical isolation plate is positioned below the horizontal isolation plate; the base is divided by the horizontal isolation plate and the vertical isolation plate into a first mounting cavity, a second mounting cavity and a third mounting cavity; the first mounting cavity is used for mounting the electromagnetic system; the second mounting cavity and the third mounting cavity are arranged side by side; the second mounting cavity is used for mounting the first movable and static contact group; and the third mounting cavity is used for mounting the second movable and static contact group. The double-pole single-throw magnetic latching electromagnetic relay has the advantages of achieving the 16A load level, and realizing subminiature (the height is less than 13mm and the mounting width is les than 16mm) and high safety.

The invention discloses a low voltage switch cabinet which comprises a switch cabinet body. A middle partition plate is arranged in the middle of the switch cabinet body, a push-pull type horizontal partition plate is arranged on the upper portion of the switch cabinet body, a low voltage chamber and a circuit breaker chamber are arranged in the switch cabinet body above the horizontal partition plate, the low voltage chamber is located above the circuit breaker chamber, a bus chamber and a cable chamber are arranged in the switch cabinet body under the horizontal partition plate, two closed doors are arranged on the lower portion of the switch cabinet body, an automatic lock is installed on the doors, and a radiating cabinet plate is arranged at the bottom of the switch cabinet body. The low voltage switch cabinet has the advantage that the middle partition plate and the push-pull type horizontal partition plate are adopted to divide internal space of the switch cabinet into different sections, components and circuits are reasonable in arrangement, and enough radiating space is obtained.

The invention discloses a power variable stay cable permanent magnet eddy current retarder and belongs to the field of bridge structural vibration control. The power variable stay cable permanent magnet eddy current retarder comprises a rigid shaft, a second linear movement mechanism, a fixed disc, a conductor disc, a driving gear, at least three driven gears of different radiuses, and at least one pair of permanent magnets opposite in magnetic poles; one end of the rigid shaft is connected with the second linear movement mechanism, and the other end of the rigid shaft sequentially penetratesthrough the fixed disc, the conductor disc and the driven gears; the fixed disc is fixed relative to the rigid shaft, the conductor disc is fixed relative to the driven gears, and the driven gears areconnected with the rigid shaft through bearings; the permanent magnets are arranged on the surfaces of the fixed disc. According to the power variable stay cable permanent magnet eddy current retarder, the conductor disc moves inside the magnetic field of the permanent magnets to cut magnetic lines to produce eddy current damping and accordingly to dissipate vibrating energy of a stay cable and inhibit vibration of the stay cable; through engagement between the driven gears different in radius and the driving gear, the energy consumption power can be adjust, high adaptability to external loadcan be achieved, and the power variable stay cable permanent magnet eddy current retarder can be in an optimum load operating sate for a long time.

The invention discloses a spring operating mechanism of a circuit breaker. The mechanism comprises a switching-on assembly, an switching-off assembly, a transmission assembly and an output assembly which are connected in a shell frame; the output assembly comprises an output shaft and an output crank arm connected to the output shaft. The switching-on assembly comprises a switching-on half shaft and an energy storage maintaining latch connected to the switching-on half shaft. The transmission assembly comprises an energy storage shaft, the energy storage shaft is connected with a closing spring, and the energy storage shaft rotates to compress the closing spring to realize energy storage; the energy storage shaft rotates to drive a first roller on a cam on the energy storage shaft to be incontact connection with the energy storage maintaining latch to achieve energy storage maintaining; the switching-on spring is reset to realize switching-on; the switching-on spring resets to drive aswitching-on keeping latch on the energy storage shaft to rotate, and the switching-on keeping latch is in contact connection with a third roller on the output crank arm to realize switching-on keeping; the switching-off assembly is used for switching-on. According to the invention, part reuse is achieved, the total number of parts is greatly reduced, and the beneficial effects of being simple instructure and high in reliability are achieved.

A low-smoke flame-retardant cable for urban rail transit is disclosed, including a cable shell, anti-slip strips are fixedly installed on the outer surface of the cable shell near the two ends, and the outer surface of the cable shell is longitudinally provided with a heat conduction groove, the outer surface of the cable shell is provided with a binding groove close to the middle position, The outer surface of the binding groove is sleeved by a buffer pad, a plurality of groups of clamping blocks are fixedly installed inside the cable shell, glass fiber filling cores are embedded in the innersurfaces of the clamping blocks, a cable core is arranged in an upper side position close to the glass fiber filling cores inside the cable shell, and an inner insulation sleeve sleeves the outer surface of the cable core. The low-smoke flame-retardant cable for urban rail transit is provided with the heat conduction groove, the binding groove and a shielding ring, which can play a heat conduction role on the cable, facilitate the binding of the cable, greatly improve the flame retardancy of the cable and bring better use prospects.

The invention belongs to the technical field of automobile parts and provides a side turn signal lamp. The side turn signal lamp comprises a lamp body and a lampshade connected to the lamp body. An LED module is further arranged between the lamp body and the lampshade and comprises a first LED lamp and a circuit board used for driving the first LED lamp to be turned on or turned off. The first LED lamp is connected to the circuit board, and the LED module is installed on the lamp body. According to the side turn signal lamp, the LED lamp is used for replacing an existing halogen lamp, and due to the fact that the power of the high-brightness LED lamp is low under the same light emitting intensity, energy consumption is small; and meanwhile, the LED lamp is small in size, so that an enough heat dissipating space is available, the normal work of a light source is ensured, the service life of the side turn signal lamp is prolonged, the structure arrangement of a whole automobile is facilitated, and the safety of vehicle transportation is improved.

The invention relates to a heat insulation structure of a high-temperature valve. The heat insulation structure comprises a driving device, a valve rod, a valve body, a valve element, a support frame, a valve cap, a first anti-radiation plate and a second anti-radiation plate, wherein the upper end of the valve body is provided with the valve cap; the valve element is arranged in the valve body; the driving device is connected with the valve element through the valve rod; the support frame is arranged outside the valve rod; the top end of the support frame is connected with the driving device; the bottom end of the support frame is arranged on the valve cap; the first anti-radiation plate is arranged below the driving device and above the support frame; and the second anti-radiation plate is arranged on the support frame. The driving device and high-temperature surfaces at the periphery of the driving device are provided with the anti-radiation plates, a heat insulation gasket is arranged below the driving device and above the support frame, and the support frame is provided with the anti-radiation plates, so that the heat radiation of the high-temperature surface to the driving device is effectively reduced. A large enough heat radiating space is arranged between the driving device and a high-temperature pipeline, so that the heat conductivity is reduced; and the temperature at the driving device is lower than the highest service temperature, so that the performance reliability and life of the driving device of the valve are ensured.

The invention provides an electronic equipment capable of hiding a keyboard. The electronic equipment comprises a functional body, a displayer module and a keyboard module, wherein the displayer module is hinged to one end of the functional body through a displayer rotating shaft; the keyboard module is hinged to the other end of the functional body through a keyboard rotating shaft; when the keyboard module and the displayer module are unfolded towards the functional body, at first, the keyboard module is rotated to one surface of the functional body to be overlapped with the functional body, and the displayer module is rotated to the keyboard module in an overlapping state to be overlapped with the keyboard module and the functional body, so that the keyboard module is hidden between the displayer module and the functional body. Through hiding and un-hiding of the keyboard, perfect switching between a tablet personal computer and a notebook computer is realized, and a high-performance using mode of the notebook computer is realized. The electronic equipment is humanized in design and convenient to use, and the comfort is improved.

The invention discloses an SF6 multiple decomposition component detection device based on spatial light path coupling. The SF6 multiple decomposition component detection device comprises a plurality of quantum cascade lasers, a signal controller, an absorption cell and an MCT detector, under the control of the signal controller, the central wave band of infrared laser emitted by each quantum cascade laser is consistent with the wave band of a decomposition component of a certain gas to be detected; the number of the quantum cascade lasers is consistent with the type number of the decomposition components of the gas to be detected; the quantum cascade laser emits infrared laser with different specific wavelengths into the absorption cell through an infrared laser light path according to the emitted infrared laser; and after being reflected for multiple times between the parabolic mirrors on the two sides of the absorption cell, the light is emitted out of the absorption cell and then is emitted into the MCT detector through the infrared laser light path. Only one absorption cell gas chamber is used to realize detection of multiple gas decomposition components; the influence of interference signals on the detection result is effectively reduced, the accuracy of the detection result is improved, processing can be carried out on multiple platforms, processing is convenient, and the application range is wide. The compact layout of the device gives consideration to sufficient heat dissipation space.

The invention relates to an assembled power distribution cabinet. The cabinet comprises a cabinet body. The cabinet body comprises an upper cabinet frame, a lower cabinet frame and a side panel assembly which surrounds a peripheral side of the cabinet body to form a peripheral side wall of the cabinet body; the side panel assembly comprises a first side panel and a lengthened side panel; the firstside panel is provided with a first length adjusting groove extending along a height direction of the cabinet body; and the lengthened side panel is in sliding fit with the first length adjusting groove, one end of the lengthened side panel is fixedly connected with the lower cabinet frame, one end of the first side panel is fixedly connected with the upper cabinet frame, and the side panel assembly is provided with a positioning assembly used for positioning and fixing a position of the lengthened side panel after the lengthened side panel slides on the first length adjusting groove. A volume of the cabinet body is changed, a capacity of the power distribution cabinet body is improved, and an application range is wider.

The invention discloses a spring operating mechanism transmission energy storage device. The device comprises an energy storage shaft and a shell frame, wherein two ends of the energy storage shaft are rotatably connected in the shell frame, a prime mover is further connected in the shell frame, the energy storage shaft is movably connected with a large gear, the side surface of the large gear isconnected with a pawl, the energy storage shaft is connected with a round wheel and a hanging spring crank arm, the pawl is connected with the round wheel, and the output end of the hanging spring crank arm is connected with a closing spring. An output gear on the prime mover rotates to drive a large gear to rotate, a pawl on the large gear drives an energy storage shaft to rotate through a roundwheel, and the energy storage shaft drives a hanging spring crank arm to rotate to compress a closing spring to achieve energy storage. According to the device, through optimized layout and gear transmission optimization design, two-stage gear transmission is adopted, the structure is compact, the layout is reasonable, and the number of parts is reduced. Compared with a traditional spring operating mechanism energy storage device, the number of the parts is reduced by 20%, fault points are reduced, and the reliability of the mechanism is improved.

The invention discloses a spring operation mechanism for a modularized vacuum circuit breaker. The spring operation mechanism is characterized by comprising a right mechanism plate (1) and a left mechanism plate (15) which are oppositely arranged, wherein an energy-storing motor (2) is arranged on the right mechanism plate (1); an output shaft (28) of the energy-storing motor (2) is penetrated through the right mechanism plate (1); a pinion (4) is sleeved on the output shaft (28); the pinion (4) is meshed with a gear (5); a shaft (30) is connected with the gear (5) and a middle pinion (29); the middle pinion (29) is meshed with an energy-storing gear (10); and the energy-storing gear (10) and a cam (25) are connected to an energy-storing shaft (12). The spring operation mechanism for the modularized vacuum circuit breaker, provided by the invention, has the advantages of multifunctional parts, greatly reduced total amount of parts, simple structure, small volume, light weight, low cost, long service life and easiness in maintenance and repair.

The invention provides a multi-output high-precision LED constant-current driving device which comprises a laminating mechanism, the laminating mechanism internally comprises a laminating plate, a supporting shaft and a supporting frame, the supporting shaft is connected to the inner side wall of the laminating plate in a penetrating mode, the supporting frame is connected to the side wall of the supporting shaft in a penetrating mode, and the supporting frame is connected to the inner side wall of the laminating plate in a penetrating mode. An LED lamp is connected to the side wall of the supporting frame in a penetrating mode, and a movable plate is connected to the bottom end of the overlying mechanism in a penetrating mode. The side wall of the folding frame is extruded and pushed through the overlying mechanism, when the side wall of the folding frame is bent in a radian mode, the side wall of the inserting plate is just unfolded in a fan shape, after the angle of the side wall of the inserting plate is gradually enlarged, the inserting plate can move to the outer end from the inner position of the leakage layer, and after the LED lamp is used for a long time, the position of a line connecting point is automatically adjusted according to the temperature; and when the temperature at the original interface of the leakage layer is relieved, the leakage layer can be recovered to the original position, and the sliding interface arranged in the leakage layer can slide along the wavy side wall of the leakage layer.

The invention relates to a data analysis system which comprises a cabinet body, a cabinet door, a fixing device and an analysis device for data analysis. A plurality of heat dissipation holes and wire holes for cables to pass through are arranged on the side wall of the cabinet body at intervals. A side of the cabinet door is hinged to the open side of the cabinet body. The analysis device and the fixing device are installed in the cabinet body. The fixing device is used for fixing the analysis device. The data analysis system is simple in structure. The cabinet body has a good heat dissipation effect. Equipment has a long service life. The analysis device has good stability in the cabinet body, is easy to transport, avoids damage to the equipment, and saves cost.

The invention discloses a heat radiation structure of twisting cables of a wind generating set. The heat radiation structure of twisting cables of a wind generating set includes a cable harness and a plurality of supporting rings, wherein the cable harness stretches to the inside of a tower tube from a cabin of a wind generating set; the plurality of supporting rings are arranged on cables in the cable harness in the axial direction at intervals, and separate the adjacent cables so as to form a heat radiation space in the cable harness. By setting the supporting rings on the cables, the heat radiation structure of twisting cables of a wind generating set utilizes the supporting rings to separate the adjacent cables so as to guarantee that the cables in the cable harness can have enough heat radiation space and setting of the supporting rings on the cables has little influence on twisting of the cable harness. The heat radiation structure of twisting cables of a wind generating set has the advantages of being simple in structure, being reasonable in design, being safe and reliable, being conductive to heat radiation and twisting of twisting cables of the wind generating set, being conductive to reduction of the cost and the installation difficulty of the cables, being high in practicality, and being substantial in economic benefits.

The invention discloses a two-stage torsional vibration damper of an engine. The two-stage torsional vibration damper comprises a crankshaft. The crankshaft, an inner side torsional vibration damper and a crankshaft belt pulley are arranged in a positioning manner through positioning pins, and the inner side torsional vibration damper and the crankshaft belt pulley are installed at the front end of the crankshaft through short bolts; and a connecting spacer block and an outer torsional vibration damper are sequentially placed at the front end of the crankshaft belt pulley and fixed to the crankshaft through long bolts. According to the two-stage torsional vibration damper, by means of a combined structure of the crankshaft and the two-stage torsional vibration damper, the problem that torsional vibration of the engine with a single-stage torsional vibration damper exceeds the limit can be rapidly solved, redevelopment of a large-specification torsional vibration damper, a mounting hole in a cylinder body, a front end gear train and surrounding parts is avoided, and the development time and development cost are greatly saved. The two-stage torsional vibration damper is suitable for the engine.

The invention relates to an uninterrupted double-circuit-breaker high-voltage switch cabinet. The high-voltage switch cabinet comprises a main bus chamber, a main supply circuit breaker chamber, a standby circuit breaker chamber, a cable chamber, a main secondary control chamber and a standby secondary control chamber, wherein one side of the main bus chamber is electrically connected with the cable chamber, a right side of the cable chamber is provided with the standby circuit breaker chamber, the standby circuit breaker chamber is electrically connected with the main secondary control chamber, a left side of the cable chamber is provided with the main supply circuit breaker chamber, the main supply circuit breaker chamber is electrically connected with the standby secondary control chamber, a left side of the main bus chamber is provided with ventilation equipment, and a right side of the main bus chamber is provided with an air outlet. The high-voltage switch cabinet is advantaged in that the high-voltage switch cabinet is formed by splicing and combining functional compartments, has characteristics of standardization and modularization, good protection performance, good fault isolation performance and enough heat dissipation space, can realize switching between a main supply circuit breaker and a standby circuit breaker under the condition of no power failure through powersupply from the standby circuit breaker and a mutual inductor to an outgoing cable, and is convenient to overhaul.

The invention discloses a power variable stay cable permanent magnet eddy current retarder and belongs to the field of bridge structural vibration control. The power variable stay cable permanent magnet eddy current retarder comprises a rigid shaft, a second linear movement mechanism, a fixed disc, a conductor disc, a driving gear, at least three driven gears of different radiuses, and at least one pair of permanent magnets opposite in magnetic poles; one end of the rigid shaft is connected with the second linear movement mechanism, and the other end of the rigid shaft sequentially penetratesthrough the fixed disc, the conductor disc and the driven gears; the fixed disc is fixed relative to the rigid shaft, the conductor disc is fixed relative to the driven gears, and the driven gears areconnected with the rigid shaft through bearings; the permanent magnets are arranged on the surfaces of the fixed disc. According to the power variable stay cable permanent magnet eddy current retarder, the conductor disc moves inside the magnetic field of the permanent magnets to cut magnetic lines to produce eddy current damping and accordingly to dissipate vibrating energy of a stay cable and inhibit vibration of the stay cable; through engagement between the driven gears different in radius and the driving gear, the energy consumption power can be adjust, high adaptability to external loadcan be achieved, and the power variable stay cable permanent magnet eddy current retarder can be in an optimum load operating sate for a long time.

The invention provides an oral liquid filling method, and belongs to the technical field of drug packaging. The oral liquid filling method comprises the following steps that an oral liquid solution ismade into strip-shaped ice blocks for standby application; after being fed by one of diaphragm releasing rollers, a diaphragm penetrates through the position between a corresponding forming roller and a corresponding overlying roller, and an accommodating opening which is arranged in an avoiding notch in a clamping manner is formed by thermoforming of the diaphragm and a pressing die at the avoiding notch; every two diaphragms penetrate through the position between the two overlying rollers symmetrically, one of the overlying rollers is driven to rotate at a uniform speed, and the prepared ice blocks are intermittently put between the two diaphragms, so that the dropped ice blocks can be arranged between every two accommodating openings; overlying is performed at a tangential position ofthe two overlying rollers by a thermal melting mechanism to surround the two accommodating openings into a sealed accommodating cavity, and the corresponding ice blocks are packaged in the accommodating cavity to form a packaging container packaged with the oral liquid; and the packaging container filled with the ice blocks is placed at room temperature for alleviating until the ice blocks melt, so that the products are obtained. The oral liquid filling method disclosed by the invention has the advantages of being high in filling efficiency, few in working procedures and the like.

The invention belongs to the technical field of automobile parts and provides a side turn signal lamp. The side turn signal lamp comprises a lamp body and a lampshade connected to the lamp body. An LED module is further arranged between the lamp body and the lampshade and comprises a first LED lamp and a circuit board used for driving the first LED lamp to be turned on or turned off. The first LED lamp is connected to the circuit board, and the LED module is installed on the lamp body. According to the side turn signal lamp, the LED lamp is used for replacing an existing halogen lamp, and due to the fact that the power of the high-brightness LED lamp is low under the same light emitting intensity, energy consumption is small; and meanwhile, the LED lamp is small in size, so that an enough heat dissipating space is available, the normal work of a light source is ensured, the service life of the side turn signal lamp is prolonged, the structure arrangement of a whole automobile is facilitated, and the safety of vehicle transportation is improved.

The invention discloses a heat radiation structure of twisting cables of a wind generating set. The heat radiation structure of twisting cables of a wind generating set includes a cable harness and a plurality of supporting rings, wherein the cable harness stretches to the inside of a tower tube from a cabin of a wind generating set; the plurality of supporting rings are arranged on cables in the cable harness in the axial direction at intervals, and separate the adjacent cables so as to form a heat radiation space in the cable harness. By setting the supporting rings on the cables, the heat radiation structure of twisting cables of a wind generating set utilizes the supporting rings to separate the adjacent cables so as to guarantee that the cables in the cable harness can have enough heat radiation space and setting of the supporting rings on the cables has little influence on twisting of the cable harness. The heat radiation structure of twisting cables of a wind generating set has the advantages of being simple in structure, being reasonable in design, being safe and reliable, being conductive to heat radiation and twisting of twisting cables of the wind generating set, being conductive to reduction of the cost and the installation difficulty of the cables, being high in practicality, and being substantial in economic benefits.

The present invention relates to the field of electric equipment, in particular to a power distribution cabinet for a community electric room, comprising a cabinet body and an inner frame located in the cabinet body, the inner frame and the cabinet body are overlapped and matched, and the inner frame and the cabinet body There is a buffer piece, the two ends of the buffer piece are respectively connected with the inner wall of the cabinet body and the outer wall of the inner frame in conflict, and the inner frame is provided with a heat dissipation component, a mounting plate and an adjustment assembly for adjusting the position of the mounting plate in the inner frame , the heat dissipation assembly is located at the upper section of the inner frame and is fixedly connected with the inner frame, the adjustment assembly is located at the lower section of the inner frame and is slidably fitted with the inner frame, the mounting plate is vertically arranged and the two ends of the mounting plate are provided with plugs for the adjustment assembly Connect the mating plug. In the present invention, the cabinet is placed in the electric room of the community, the components are installed on the installation board in sequence, the installation board is plugged and matched with the limit block, and the limit block slides in the slideway to adjust the distance between the installation plate and the inner frame. The distance between the components makes the components have enough heat dissipation space when they are working.

The invention relates to a combined record player. An analog audio player is arranged at the top or on the side part of a box body; a digital audio player is arranged at the front part of the box body; a first PCB (Printed Circuit Board) is arranged at the front part or the bottom of the box body; a second PCB is arranged at the rear part of the box body; an analog audio output interface is formedin the rear surface of the box body; the first PCB is provided with an analog-digital signal converter; the second PCB is provided with a digital-analog signal converter; the analog audio player is electrically connected with the analog-digital signal converter; the digital audio player is electrically connected with the digital-analog signal converter; the analog-digital signal converter is electrically connected with the digital-analog signal converter; the digital-analog signal converter is electrically connected with the analog audio output interface. The combined record player disclosedby the invention can integrate the analog audio player and the digital audio player into one box body, and routes between all components in the box body do not interference with one another and are tidy and not disordered; furthermore, both the first PCB and the second PCB have relatively large heat dissipation spaces.

The invention discloses an intelligent charger for optimizing the service life of a battery, relates to the technical field of electric power, and aims to solve the problems that when an existing battery charger is used, once the battery charger is covered by a covering, the internal temperature of the battery charger continuously rises due to untimely heat dissipation, so that the aging of a shell of the battery charger is accelerated, and the service life of the battery is prolonged. And the high temperature can cause poor chemical reaction in the battery, so that the cycle service life of the battery is greatly shortened. A first connecting base is arranged at one end of the outer side of the clamping plate and rotationally connected with the clamping plate through a bearing, a first hinge base is fixed to the other end of the outer side of the clamping plate, a supporting rod is rotationally connected to the other end of the first hinge base, and a second hinge base is rotationally connected to the other end of the supporting rod. A supporting plate is fixed to the other ends of the two second hinge seats on the same side, a second connecting seat is arranged in the middle of the supporting rod, and the second connecting seat is rotationally connected with the supporting rod through a bearing.