96results about How to "Effective installation" patented technology

The utility model discloses a refrigerant circulation formula condenser relates to condenser technical field, and the utility model discloses a bottom plate, the top surface fixedly connected with fixed frame of bottom plate, the top surface fixedly connected with clamping subassembly of bottom plate, the top of fixed frame is equipped with cooling assembly, cooling assembly includes condenser subassembly and water tank, the top surface fixedly connected with support of water tank, the bottom surface rotationally connected with pivot of support, the output of motor extends to support and is fixedly connected with pivot, a plurality of stirring rollers are fixedly connected with the outer surface of pivot, the top surface fixedly connected with water pump of fixed frame, the output fixedly connected with connecting pipe of water pump, the lower portion intercommunication of water tank is equipped with circulating pipe, the bottom end of circulating pipe penetrates fixed frame and is linked with condenser subassembly intercommunication, the outer surface of connecting pipe is clamped with the frame, the utility model discloses can make condensing equipment circulation refrigeration, and can install to condensing equipment.

The utility model relates to a mounting tool for a stud of a bearing casing of an aero-engine. The mounting tool solves the problems existing during stud assembly at present. Comprising a positioning sleeve, the front end of the positioning sleeve is provided with an internal thread matched with an engine front bearing casing stud installation thread, handles are arranged on the two sides outside the positioning sleeve, a movable lead screw is installed in the positioning sleeve, the front end of the movable lead screw is a screw part matched with the internal thread of the positioning sleeve, and the length of the screw part is equal to that of an internal thread hole in the front end of the positioning sleeve. An inner hexagonal hole matched with a hexagonal wrench is formed in the rear end face of the movable lead screw, a force limiting square hole capable of being connected with a force limiting wrench for force limiting operation is formed in the rear end of the positioning sleeve, and the diameter of the rear end of the movable lead screw is larger than the side length of the force limiting square hole. According to the utility model, efficient installation, convenient force limiting and accurate positioning of the stud can be ensured.

The utility model relates to the technical field of breaker with wear -resistant lining plate quick replacement structure discloses a breaker with wear -resistant lining plate quick replacement structure, including breaker body, the inside of breaker body is provided with crushing device, the top of breaker body is provided with feed inlet, the outside of feed inlet is provided with quick replacement subassembly, quick replacement subassembly includes lining plate body, butterfly bolt, sealing washer and thin wear -resistant rubber board, through the quick replacement subassembly that sets up, the sliding fit of spacing rod and spacing hole provides accurate orientation for lining plate body, realizes quick positioning, and the thread groove cooperation butterfly bolt of connecting plate and feed inlet, and staff can complete fixing and dismounting by hand, spares the tool operation, accelerates the replacement speed, and sealing washer and sealing groove guarantee sealing and do not increase the installation difficulty, above all, the cooperation of each part realizes lining plate body quick positioning and dismounting, shortens the replacement time, reduces the difficulty, promotes the maintenance efficiency.

The invention relates to the technical field of transmission gear shifting testing, and discloses a transmission static gear selecting and shifting performance testing device and a testing method thereof.The transmission static gear selecting and shifting performance testing device comprises a gear selecting assembly, a gear shifting assembly, a detecting assembly and an adjusting assembly.The gear selecting assembly comprises a gear selecting mechanical arm and a first motor, and the gear selecting mechanical arm is fixedly connected with a rotating shaft of the first motor in a sleeving mode; the gear shifting assembly comprises a gear shifting mechanical arm and a second motor, the gear shifting mechanical arm comprises two connecting ends, one end of the gear shifting mechanical arm is fixedly connected with a rotating shaft of the second motor in a sleeved mode, and the other end of the gear shifting mechanical arm is fixedly connected with a gear shifting shaft in the transmission in a sleeved mode. The detection assembly comprises a first encoder, a second encoder, a first force sensor and a second force sensor, the first force sensor and the second force sensor are connected with the gear selecting mechanical arm and the gear shifting mechanical arm respectively, and the adjusting assembly comprises two adjusting seats which are connected with the gear selecting mechanical arm and the gear shifting mechanical arm respectively. The static gear selecting and shifting performance testing device is simple in structure, high in adaptability and low in cost, and comprehensive and objective static gear selecting and shifting performance results of the transmission can be obtained.

The utility model relates to a screen mounting device of vehicle navigation appearance, including frame, the top of frame is equipped with cross bar, the below of cross bar both ends is equipped with vehicle screen conveying system and navigation appearance casing conveying system respectively, the bottom of cross bar is equipped with horizontal moving mechanism, the moving end of horizontal moving mechanism is installed with elevating unit, the elevating end of elevating unit is installed with frame, the four corners of frame bottom are all equipped with vacuum chuck, the middle part of frame bottom is equipped with rectangular through -hole, the four corners of rectangular through -hole are all equipped with the push rod of up -and -down sliding cooperation, the top of frame inside is equipped with air cylinder, the push rod is connected with the output end of air cylinder through connecting rod, one end of cross bar is equipped with the positioning mechanism that carries out position positioning to vehicle screen, and the positioning mechanism is located above navigation appearance casing conveying system, and the positioning mechanism is electrically connected through controller and horizontal moving mechanism, the utility model realizes the efficient, accurate installation of vehicle screen, improves production efficiency, prevents vehicle screen from happening to knock, avoids accidental loss.

The utility model relates to the field of positioning supporting frames, and discloses a concrete wall steel bar formwork positioning supporting frame which comprises a bottom plate, a movable sliding plate with the adjustable position is arranged on the bottom plate, a rectangular installation frame is fixedly installed on the movable sliding plate, and a hinge supporting rod and a hinge rod are hinged to the two sides of the interior of the rectangular installation frame respectively. The hinge rod is supported at the bottom of the hinge supporting rod, a locking assembly is arranged on one side of the rectangular mounting frame and used for locking the inclination angle of the hinge supporting rod, an attaching plate is arranged at the tail end of the hinge supporting rod, and the position of the whole supporting device can be easily and transversely adjusted through a movable sliding plate capable of sliding on the bottom plate. And the requirements of templates at different positions can be met. Meanwhile, the inclination angle of the hinged supporting rod can be freely adjusted around the hinged point of the rectangular mounting frame, the hinged supporting rod slides in the strip-shaped groove in a matched mode, the supporting requirements of formworks of different heights and gradients can be accurately met, and the adaptability of the supporting system to various construction scenes is greatly improved.

The utility model discloses an ophthalmic cavity instrument multi-channel cleaning frame, specifically relates to ophthalmic cavity instrument cleaning technical field is equipped with the connecting pipe, and the connecting pipe includes: rigid fixed head, is connected on the connecting pipe, and the faraway connecting pipe one end is equipped with the help suction connecting portion, is used for with the help suction hole detachable connection of injection suction handle, the elastic hose is equipped in the side of rigid fixed head, and the front end is equipped with perfusion connecting portion, is used for with the perfusion hole sealed connection of injection suction handle. The utility model through setting up rigid fixed head on the basis, the elastic hose is installed in the side, realizes the one side channel of cavity instrument and is fixed in rigid fixed head place, and the other side uses the butt joint of elastic hose and connects, realizes double channel simultaneous flushing, guarantees the cleaning effect of instrument cleaning, also reduces the manual work of staff, improves the work efficiency.

The utility model discloses an integrated electric energy meter module plug connector convenient to install, and belongs to the technical field of plug connectors, the integrated electric energy meter module plug connector convenient to install comprises a fixing plate and a plug board, fixing strips are symmetrically and fixedly installed on the sides of the fixing plate, sliding grooves are longitudinally formed in the side walls of the fixing strips, two sliding blocks are fixedly installed on the side wall of the plug board, and the two sliding blocks are fixedly installed on the side wall of the plug board. The sliding blocks are clamped into the sliding grooves in a sliding mode. A mounting hole is formed in the inner wall of the fixing strip, a spring is fixedly mounted on the inner wall of the mounting hole, a pull rod is slidably inserted into the mounting hole, the inner wall of the tail end of the spring is fixedly connected to the outer wall of the pull rod, a clamping plate is fixedly mounted at the tail end of the pull rod, and the clamping plate slidably extends into the sliding groove; a clamping groove is formed in the side wall of the sliding block, and the clamping plate is matched with the clamping groove. Compared with the prior art, the device can conveniently and rapidly install the integrated electric energy meter module, and meanwhile, the installation stability of the integrated electric energy meter module is further improved.

A waterproof mushroom head antenna provided by the utility model comprises an upper shell, a lower shell, a connector and an antenna oscillator, the upper shell is of a hollow conical structure, the lower end portion of the upper shell is provided with an annular installation groove, the inner side wall of the annular installation groove is also provided with a clamping groove, and the clamping groove is provided with a clamping groove. The lower shell is of a circular structure, the periphery of the lower shell is provided with an annular inserting plate capable of being inserted into the annular mounting groove, the outer side wall of the annular inserting plate is further provided with a clamping block matched with the clamping groove, a threaded connecting hole is formed in the center of the lower shell, one end of the connector is provided with an external thread structure matched with the threaded connecting hole, and the other end of the connector is provided with an internal thread structure matched with the external thread structure. And the antenna oscillator is arranged between the upper shell and the lower shell and is electrically connected with one end, close to the upper shell, of the connector. The waterproof LED lamp is simple in structure, convenient to assemble and better in waterproof effect.

This utility model provides a bushing pressing device for an adjuster, including a bushing pressing mechanism, a bushing feeding mechanism, and an adjuster placement mechanism. The bushing pressing mechanism includes a pressing frame and a pressing table. An upper pressing cylinder is mounted on the pressing frame, and a lower pressing cylinder is mounted below the pressing frame. The upper and lower pressing cylinders are arranged opposite to each other. A frame cylinder is located on one side of the lower pressing cylinder. An upper pressing head is connected to the upper pressing cylinder, and a lower pressing rod is connected to the lower pressing cylinder. A pressing port is opened on the pressing table, and a lower pressing head is mounted on the pressing port. The upper and lower pressing heads are matched, and the outer circumference of the upper pressing head is evenly surrounded by retaining edges. The lower pressing head has an embedded groove that cooperates with the retaining edges. A set of straight stops protrudes upwards from both sides of the upper surface of the lower pressing head, and the distance between the straight stops is approximately equal to the bushing diameter. The beneficial effects of this utility model are: it allows for quick and effective installation of the bushing with an adjustable adjuster, and the bushing deformation is small during the pressing process, ensuring the quality of the pressing.

The application belongs to the technical field of house building engineering, and particularly relates to a fabricated beam-column connecting assembly. The structure of the beam-column connecting assembly comprises a screwing cylinder unit for sleeving a stand column, a bent connecting plate unit arranged on the outer side surface of the screwing cylinder unit and used for connecting a cross beam, a connecting screwing piece arranged on the bent connecting plate unit and used for mounting the cross beam, a fixing screwing piece arranged on the bent connecting plate unit and used for connecting the screwing cylinder unit, and a transverse protruding plate unit arranged on the inner side surface of the screwing cylinder unit and used for mounting the fixing screwing piece from inside to outside by transversely abutting against the stand column.

This application provides an isolating contact installation device, comprising: a worktable; a first abutment plate, with a second abutment plate correspondingly disposed above the worktable, the first abutment plate being fixedly connected to the worktable, and the second abutment plate being slidably connected to the worktable; a first cylinder, with the first cylinder and the second cylinder disposed on opposite sides of the worktable, the protruding end of the first cylinder passing through the first abutment plate and fixedly connected to the second abutment plate, so that the first cylinder drives the second abutment plate to move horizontally above the worktable, and the protruding end of the second cylinder passing through the second abutment plate and movably engaging the isolating pin shaft. This application enables precise alignment and efficient installation of the isolating contact components, solving the problems of unstable installation accuracy and low efficiency in traditional installation methods; it can adapt to the installation requirements of isolating contacts of different specifications, solving the problem of poor adaptability of simple tooling fixtures; it reduces manual intervention, solving the problem of lack of overall coordination and automation in semi-automatic mechanical equipment.

The utility model discloses an LED display screen module capable of being rapidly assembled. The LED display screen module capable of being rapidly assembled comprises a display screen and a heat dissipation piece. The display screen is provided with a fixing plate and a mounting seat, the fixing plate is provided with a first magnetic attraction piece, a second magnetic attraction piece and a mounting hole mounting bolt, and the heat dissipation piece is provided with a heat dissipation opening and a heat dissipation pipeline; the fixing plates are located on the two sides of the display screen, the mounting bases are located on the rear side wall of the display screen and close to the four corners, the first magnetic attraction piece and the second magnetic attraction piece are located on the fixing plates on the different sides respectively, and the mounting hole is located in the center of the fixing plate on one side of the first magnetic attraction piece. And the mounting bolt is positioned at the central position of the fixing plate on one side of the second magnetic attraction piece. The structure design is reasonable, and the magnetic attraction piece and the installation assembly are convenient to quickly assemble; relevant parts of the mounting seat are combined and mounted flexibly; the heat dissipation piece and the heat dissipation structure effectively dissipate heat; the data interface is arranged on the side wall of the heat dissipation piece, and data transmission and wiring are facilitated.

The utility model provides a pre-stressed anchorage device for engineering construction, which relates to the technical field of pre-stressed anchorage devices and comprises an anchor backing plate, a pre-stressed tendon, an anchor backing cylinder, a corrugated pipe, an anchor plate, a guide plate, a guide pipe, a guide sleeve, a rectangular plate and a support plate. The prestressed tendons are accurately aligned to other construction anchorage device holes, so that the prestressed tendons are rapidly and efficiently installed on the two anchorage devices, time and labor are saved in operation, the rectangular plates and the supporting plates are arranged on the anchor bearing plate, the contact area between the anchorage devices and poured concrete is increased, the stability of the anchorage devices is improved, and the construction efficiency is improved. The structural strength of the anchorage device is enhanced when the concrete strength is reduced, and the problems that in the using process of an existing anchorage device, hole alignment is difficult, the construction efficiency is low, and the structural stability is poor are solved.

The utility model relates to the technical field of power distribution cabinets, in particular to a power distribution cabinet bus fixing device which comprises an insulating plate, a first clamping structure is arranged on the end face of one side of the insulating plate, and a second clamping structure is arranged on the end face of the other side of the insulating plate. The first clamping structure comprises two first plates, the two first plates are vertically arranged on the left side and the right side of the insulating plate respectively, first protrusions are arranged at the ends, away from the insulating plate, of the opposite sides of the two first plates, and the second clamping structure comprises two second plates which are horizontally arranged on the upper side and the lower side of the insulating plate respectively; the middle portions of the end faces of the two sides of the insulating plate are respectively provided with a cylinder perpendicular to the end faces, the bus is installed efficiently and conveniently, and the insulation reliability is high.

This utility model discloses an easy-to-install wall-mounted air purification device, relating to the field of wall-mounted fresh air unit technology. It includes a ventilation component, a unidirectional flow fresh air unit, and a quick-installation component. The quick-installation component facilitates the convenient installation of the unidirectional flow fresh air unit. The quick-installation component includes a limiting back plate, a rectangular frame, and a type 7 elastic hook. The unidirectional flow fresh air unit includes a main unit and a slot. The slot is symmetrically formed at the top and bottom of the main unit's outer shell and near the rear end of the main unit. When the main unit is inserted into the rectangular frame, it is engaged with the inside of the slot by the type 7 elastic hook, thus securing the main unit. This utility model, by setting up the quick-installation component, enables convenient installation of the unidirectional flow fresh air unit. Compared to traditional installation methods, it eliminates the need to drill installation holes in the wall for the unidirectional flow fresh air unit, making installation more convenient and efficient.

The utility model relates to controller technical field, specifically disclose a kind of modular controller, including core module, fixed function module and splicing function module, fixed function module and splicing function module all include circuit board module and multichannel port module, circuit board module includes functional circuit board, connecting plug and connecting socket, connecting plug and connecting socket are fixedly installed in the two sides of functional circuit board symmetrically;Fixed function module is fixedly connected with core module, splicing function module can be detachably connected with fixed function module or another splicing function module;That is, after the insertion shell of splicing function module is fitted on the docking shell of fixed function module or another splicing function module, different functional circuit boards can be electrically connected by connecting plug and connecting socket, so that the signal in core module can be transmitted to splicing function module, multiple output ports can be effectively installed according to requirement, increase the practicability of the controller.

The application provides a gasoline engine high-pressure oil pump pre-tightening tool, and belongs to the technical field of oil pump pre-tightening. The tool comprises a cylinder cover, a fixing frame arranged outside the cylinder cover, a clamping and fixing assembly arranged outside the cylinder cover and used for conveniently disassembling and assembling the fixing frame, an oil pump mounting seat mounted on the upper end of the cylinder cover and used for supporting and mounting a high-pressure oil pump, a pressing block arranged above the oil pump mounting seat, and a pressing operation assembly arranged above the pressing block and used for driving the pressing block to move up and down and press the high-pressure oil pump. The tool can be applied to the pressing work of other high-pressure oil pumps, the applicability of the tool is effectively ensured, the flange of the high-pressure oil pump is preliminarily attached to the oil pump mounting seat, the high-pressure oil pump is prevented from being pressed and deviated, the risk of damage of the high-pressure oil pump is prevented, the O-shaped ring of the high-pressure oil pump is prevented from being damaged, the effective installation of the high-pressure oil pump is facilitated, and the whole operation process is easy and labor-saving.

The utility model relates to the semiconductor technology, in particular to a power module and a plastic package device. A power module comprises a power module body (1). The power module body (1) comprises a plastic package shell (11) and metal pins (12) extending out of the plastic package shell (11). A metal heat dissipation surface (13) is arranged at the top of the plastic package shell (11); and a creepage enhancement unit (14) is arranged on the plastic package shell (11) between the metal radiating surface (13) and the metal pins (12). According to the surface-mounted power module with insulation enhancement and top surface heat radiation, the insulation capability between the module and the radiator can be enhanced so as to meet the application requirements of customers for improving the voltage grade of products, and meanwhile, the connection mode of the power module of the type and the radiator is also optimized.

The application belongs to the technical field of bridge engineering, and particularly relates to a shear key formwork device for segment splicing box girder. The structure of the shear key formwork device comprises a head formwork unit, an opening hole arranged on the head formwork unit, a protruding shell arranged on the head formwork unit and covering the opening hole and used for being inserted into the opening hole on the adjacent head formwork unit or the box girder concrete body, and a tensioning opening hole arranged on the head formwork unit and used for penetrating through the steel strand. The beneficial effects of the application at least include that the shear key formwork is used in pairs, one of which inserts the protruding shell into the box girder concrete body as the female die part of the shear key, and the other exposes the protruding shell as the male die part of the shear key, so that the segment splicing box girder is formed together with the complete shear key structure, and the splicing and installation operation is more convenient and efficient.

The utility model discloses energy-saving hot air circulation equipment for drying feed-grade manganese sulfate, which relates to the technical field and is technically characterized by comprising a hot air circulation heat supply machine body, the heat supply sealing cover is mounted and connected to the upper end position of the hot air circulation heat supply machine body, and the heat supply sealing cover is connected to the feed-grade manganese sulfate drying container; the mounting and fixing bracket is mounted and connected to the outer end of the hot air circulation heat supply machine body; the feed-grade manganese sulfate drying device has the technical effects that hot air in the exhaust three-way pipe of the feed-grade manganese sulfate drying container can be effectively extracted through the fan extraction mechanism and then is conveyed into the circulating hot air supply mechanism, so that the hot air is exhausted through a hollow panel of the circulating hot air supply mechanism; and the exhaust position is located at the gas extraction position of the hot air supply fan, so that the heating element machine body does not need to be heated too high to heat the gas, and energy is effectively saved.

The present application relates to the technical field of insulating tools, and particularly relates to an insulating clamp, which comprises an insulating rod, a clamping module arranged at the top of the insulating rod, a handpiece arranged at the bottom of the insulating rod, and a shell movably connected with the handpiece; the clamping module comprises a first clamping mechanism and a second clamping mechanism; the first clamping mechanism and the second clamping mechanism are both provided with two clamping pieces; the second clamping mechanism is provided with a first operating rod; the first operating rod and the two clamping pieces of the second clamping mechanism are connected through a second pulley set and a first connecting rope; the shell is provided with a second operating rod; the second operating rod and the two clamping pieces of the first clamping mechanism are connected through a first pulley set and a third connecting rope; wherein the two clamping pieces of the first clamping mechanism are arranged to clamp a first umbrella skirt rubber bonding part of the umbrella skirt; and the two clamping pieces of the second clamping mechanism are arranged to clamp a second umbrella skirt rubber bonding part of the umbrella skirt. The present application is used for safely and efficiently installing a composite insulator umbrella skirt under a live condition.

The utility model discloses a kind of fabricated building PC components. Including upper component and lower component, adjacent upper and lower component are connected by bolt. Upper component two ends are equipped with first lug and second groove, lower component end portion is equipped with second lug and first groove, and first lug and first groove, second lug and second groove shape are matched, realize accurate pre-positioning;The surface of the second lug of lower component is equipped with embedded hole, embedded hole is equipped with embedded part containing embedded nut and compression spring, the second groove of upper component is equipped with through-hole, bolt is sequentially connected with embedded nut after passing through through-hole, compression spring is compressed and generates sustained pre-tightening force when tightening bolt. The utility model is embedded by lug and groove to realize quick positioning, and the bolt connection structure of spring pre-tightening is combined to improve connection firmness, effectively solve the problem that existing PC component connection positioning is poor and easy to loosen, convenient to install and suitable for fabricated building construction.

This invention discloses a lubricator for steel wire ropes of tower cranes, relating to the field of construction equipment technology. The invention includes a cleaning mechanism with a cooperating installation mechanism inside. One end of the cleaning mechanism is fixedly equipped with a cooperating lubrication mechanism and a stirring mechanism, while the other end of the lubrication mechanism has a cooperating recovery mechanism. Both the recovery and lubrication mechanisms have cooperating reminder mechanisms, and the lower end of the recovery mechanism has a cleaning mechanism that works in conjunction with the reminder mechanism. Through the cooperation of the cleaning mechanism and the installation mechanism, the corresponding cleaning brush can be rotated, effectively cleaning the floating dust and other debris passing through the inner wall of the steel wire rope and blowing the cleaned dust away from the steel wire rope. This facilitates the subsequent spraying of lubricating oil, further improving the lubrication effect of the steel wire rope and providing convenience for the installation and disassembly of the cleaning brush, thus ensuring the normal cleaning of the steel wire rope.

The invention belongs to an anti-rotation plate device structure capable of preventing a valve rod from rotating and easy to mount and dismount in multiple directions, and particularly relates to an anti-rotation plate device easy to mount and dismount in multiple directions. The anti-rotation valve comprises two anti-rotation plates arranged around a valve rod, the two anti-rotation plates are of the same structure and are arranged in a mirror image mode, two rotating blocks capable of being flexibly disassembled and assembled in multiple directions are arranged between the anti-rotation plates, disassembling and assembling compensation gaps are formed between the rotating blocks and the anti-rotation plates, the rotating blocks and the anti-rotation plates are connected and installed through bolts and nuts, and arc-shaped supports are arranged outside the anti-rotation plates. A bearing is arranged between the support and the anti-rotation plate, friction between the anti-rotation plate device and the support is reduced, and the anti-rotation plate is provided with protrusions penetrating through the support and the bearing. The tool has the remarkable effects that the disassembly and assembly efficiency is greatly improved, and jamming caused by disassembly and assembly errors is reduced. Under the condition that the structure and the size of the valve part are not changed, the advantages of efficient installation, simple and convenient installation, flexible installation and the like are achieved. The situation that due to the space problem, the valve space design is enlarged, and metal resources are wasted is avoided.

The utility model relates to the technical field of household appliance accessories, and discloses a balcony washing machine drainage pipeline anti-blocking dredging device which comprises a limiting mechanism, an auxiliary mechanism and a main body mechanism, the limiting mechanism is located on the surface of the main body mechanism, the auxiliary mechanism is located on one side of the limiting mechanism, and the limiting mechanism comprises a limiting plate. A limiting plate is arranged on the base, a multi-stage telescopic column is fixedly connected to one side of the limiting plate, a moving block is fixedly connected to the output end of the multi-stage telescopic column, a fixing ring is installed on one side of the moving block, and a limiting groove is formed in the surface of the fixing ring. The cooperation of a moving block and a multi-stage telescopic column plays a role in extension and contraction, the moving block slides to move into a limiting groove, and the length of the whole device can be flexibly adjusted, so that the device adapts to drainage pipes with different lengths, it is ensured that efficient mounting and dismounting can be conducted on different occasions, and the practicability is high. And meanwhile, the stability of the device in the using process is guaranteed.

The utility model discloses an air cooling fuel cell system integrated structure belongs to fuel cell technical field. The integrated structure is to set up fuel cell stack and its auxiliary components on the air deflector cover, and the side plate of air deflector cover and the cathode bottom plate, anode bottom plate of electric pile are connected to form the side surrounding casing structure of fuel cell stack, and the opposite side of fuel cell stack and fan is without side plate and opens to the environment, the fan in air management subassembly provides fresh air to the cooling and cathode flow channel on the polar plate in fuel cell stack, in hydrogen circulation subassembly, hydrogen passes control valve and enters hydrogen into the stack mouth on the cathode bottom plate, supplies to the anode manifold entrance of fuel cell stack through hydrogen flow channel in the cathode bottom plate, and the hydrogen that is not consumed is led out again by hydrogen out of the stack mouth on the cathode bottom plate and enters hydrogen circulation pipeline, and it is controlled by circulating pump to return to hydrogen into the stack mouth on the cathode bottom plate again. The utility model optimizes and reduces the overall size of fuel cell, guarantees the heat dissipation performance and improves the space utilization of fuel cell.

This utility model relates to the field of automotive generator technology and discloses an automotive generator end cover, which solves the problems of existing end covers having difficulty in balancing heat dissipation and dust prevention, and having a simple structure. It includes an automotive generator end cover with a motor shaft passage at the top center. The surface is provided with an auxiliary mechanism and a heat dissipation mechanism. The heat dissipation mechanism includes an outer frame, an inner end cover, and an outer end heat dissipation cover. Correspondingly, a first row of heat vents in a ring array, a second row of heat vents in a radial pattern, and a third row of heat vents in a matrix pattern are opened to form a multi-path heat dissipation channel and improve heat dissipation efficiency. The third row of heat vents has a dust filter inside, which takes into account both heat dissipation and dust prevention. The inner end cover and the outer end heat dissipation cover are easy to install and stable, and easy to maintain. The auxiliary mechanism includes an end cover mounting base and an external buffer protective sleeve. The former facilitates the installation of the end cover and the generator body, while the latter provides buffer protection without affecting heat dissipation and motor shaft operation. This utility model has a practical structure and is suitable for promotion.

The utility model relates to the technical field of radiating fin, disclose a kind of heat-conducting fin of encircling heat-conducting groove, including heat-conducting fin body, multiple heat-conducting grooves are set in the inside of heat-conducting fin body, multiple the heat-conducting groove is by small to big and is evenly arranged in the inside of heat-conducting fin body in straight line array, multiple the heat-conducting fin body top is fixedly connected with radiating fin, multiple the radiating fin is evenly arranged in the top of heat-conducting fin body in straight line array, multiple the heat-conducting groove and radiating fin are interlaced, the heat-conducting fin body top is provided with electromagnetic shield layer, and the heat-conducting fin body bottom is provided with adsorption layer, in the utility model, heat-conducting groove inside heat-conducting fin body guides heat diffusion, cooperates radiating fin and increases heat exchange surface area, while electromagnetic shield layer auxiliary radiating and shielding electromagnetic interference, bottom adsorption layer enhances and the paste of heat source, outer wall positioning block and anti -slip grain ensure installation stability, realize the effect of efficient heat dissipation, effectively shield electromagnetic interference and installation stable.