94results about How to "Reduce poor contact" patented technology

The invention provides a battery cell structure, an assembly process method of the battery cell structure and a large energy storage battery, the battery cell structure comprises a cover plate and two adapter sheet structures, the cover plate is provided with two pole columns arranged at intervals along the Y direction, each adapter sheet structure comprises a pole column connecting part, the pole column connecting part is provided with a first side, and the first side is provided with a second side; the first side is provided with a cleaning area for cleaning treatment, the cleaning area comprises a welding area and an annular area surrounding the periphery of the welding area, and the welding area is used for welding and fixing the pole connecting part and the pole, so that the welding area is ensured to be in a clean state before welding, welding defects caused by impurities, oxides and the like are avoided, and the welding quality is improved. Therefore, the welding strength and reliability of the pole connecting part and the pole are improved.

The utility model relates to a pluggable piece capable of replacing an electric energy meter without power cut, and belongs to the technical field of electric energy meter accessories. Comprising a plugging piece body, two wiring terminal sets are symmetrically installed on the front face of the plugging piece, assembling grooves are formed in the positions, corresponding to the lower ends of the wiring terminal sets, of the plugging piece body, openings are formed in the positions, corresponding to the assembling grooves, of the back face of the plugging piece body, and a rear cover is detachably installed on the openings. A short-circuit assembly is arranged at the position, corresponding to the wiring terminal set, of the rear cover, a pressing piece is arranged above the short-circuit assembly, an open groove is formed in the portion, corresponding to the pressing piece, of the plugging piece body, and the other end of the pressing piece makes contact with the short-circuit assembly. The pressing rod of the plugging piece occupies a small installation space between the wiring terminal groups, the stability of the overall structure of the plugging piece is effectively improved, the profiling arc grooves of the short-circuit pieces are in contact connection with the outer circles of the wiring terminal groups, the contact area of the short-circuit pieces and the wiring terminal groups is effectively increased, and the service life of the short-circuit pieces is prolonged. And the occurrence of power failure caused by poor contact between the short-circuit sheet and the wiring terminal group is reduced.

The invention relates to the technical field of copper alloy strips, and discloses a vehicle-mounted connector copper alloy strip which comprises the following components in percentage by mass: 0.04 to 0.1 weight percent of Y, 1.5 to 3.5 weight percent of Sn, 0.02 to 0.08 weight percent of P, 0.5 to 2.5 weight percent of carbon nanostructure X and the balance of copper and inevitable impurities, wherein the carbon nano structure X is a compound of a carbon nano tube and fullerene, and the mass ratio of the carbon nano tube to the fullerene is (2-4): 1; the invention also discloses a preparation method. According to the invention, through the comprehensive advantages in the aspects of conductivity and corrosion resistance, the electrical connection function can be stably and reliably realized in a vehicle-mounted connector, powerful hardware support is provided for the intelligent and electric development of an automobile, and the adaptability and safety of the automobile under different working conditions are enhanced; and the maintenance cost of the automobile is reduced, and the downtime caused by faults is shortened.

The invention discloses an automatic detection device for testing lamp beads of an LED lamp strip, and belongs to the technical field of LED lamp strip testing. The device mainly comprises a workbench, one side of the top surface of the workbench is provided with a discharging device used for installing a lamp strip reel, the other side of the top surface of the workbench is provided with a receiving device used for rolling the lamp strip reel, and a lamp bead detection bin used for detecting an LED lamp strip is fixedly installed on the top surface of the workbench and located between the discharging device and the receiving device. The interior of the lamp bead detection bin is divided into a dust removal area and a detection area through a partition plate, the detection area comprises a belt pressing assembly and a detection assembly, and by combining winding and unwinding of an LED lamp belt with lamp bead detection, rapid and continuous detection can be achieved, it is ensured that each lamp bead can emit light reliably and be recognized accurately, and the detection efficiency is improved. The strip pressing assembly and the conductive terminals effectively maintain the flatness of the LED lamp strip and ensure accurate contact of power supply contacts, so that the damage risk of lamp beads is reduced, the production efficiency is improved, the product quality is ensured, and errors caused by manual operation are reduced.

The invention provides a charging auxiliary device for soil detection equipment, and relates to the technical field of charging assists.The charging auxiliary device comprises an inner sleeve fixedly installed on a battery, a fixing block is installed on the inner wall of the inner sleeve, two pressure springs are installed on the side, away from the inner sleeve, of the fixing block, and a follow-up plate is installed on the two pressure springs; a middle block is installed in the middle of the follower plate, snakelike elastic pieces are installed on the two sides of the middle block respectively, the two snakelike elastic pieces are attached to the side faces of the follower plate respectively, so that the snakelike elastic pieces are heated to expand, the expansion of the snakelike elastic pieces can drive the telescopic blocks to slide along the limiting grooves, and therefore the conductive elastic pieces are pushed to expand. By means of the design, damage of overcurrent to the battery can be effectively prevented, the service life of the battery is prolonged, and the safety and reliability of equipment are improved.

The utility model provides a semiconductor thermistor temperature sensor, which relates to the technical field of temperature sensors and comprises a coating layer, a lead is fixedly mounted in the coating layer, a mounting shell is fixedly mounted at the bottom end of the coating layer, a circular groove is formed in the bottom end of the mounting shell, a side groove is formed in the inner wall of the circular groove, and the side groove is communicated with the mounting shell. A cylinder is arranged on the inner wall of the circular groove, a side block is fixedly installed on the surface of the cylinder, and a thermistor is fixedly installed at one end of the cylinder. According to the utility model, a worker is allowed to replace different thermistors according to actual application scenes, the flexibility and adaptability of the sensor are improved, the sensor can be suitable for wider temperature measurement requirements, rapid replacement of the thermistors is realized through a simple and visual mechanical structure, and the cost is reduced. A worker can complete the replacement of the resistor only through several simple steps without complicated tools or professional knowledge, so that the maintenance efficiency and the operation convenience are remarkably improved.

The utility model relates to a battery module thermocouple fixing device and system, and relates to the technical field of battery testing. The device comprises a locking piece and two clamping pieces, the two clamping pieces are arranged in a spaced mode, and the opposite sides of the two clamping pieces are provided with clamping faces. The locking piece comprises a sliding rod and a locking hoop, the two clamping pieces are arranged on the sliding rod in a sliding mode, and the locking hoop is connected to the sliding rod and can abut against the outer sides of the clamping pieces; and when the two clamping pieces are close to each other, the clamping surfaces of the two clamping pieces can respectively abut against the outer sides of the plurality of thermocouples on the corresponding sides of the battery module. According to the utility model, the two clamping pieces are close to each other to respectively abut against the outer sides of all thermocouples on the corresponding sides of the battery module, so that the plurality of thermocouples are tightly abutted against the surface of the battery module, and the possibility that the thermocouples are in poor contact with the surface of the battery or fall off when the battery module is expanded and swelled is reduced; in addition, the device can be repeatedly used, and is safe and environment-friendly.

The utility model discloses a plug-in card guide structure which comprises a first guide limiting block, a second guide limiting block is arranged on one side of the first guide limiting block, the first guide limiting block and the second guide limiting block are spliced through a limiting piece, and insertion openings are formed in the middle of the interior of the first guide limiting block and the middle of the interior of the second guide limiting block. One end of the jack is provided with a guide slot used for guiding the plug-in card, the guide slot is arranged in an inclined plane shape, the other end of the jack is provided with a limiting slot used for installing the socket, and one end of the plug-in card is inserted into the jack under the guide of the guide slot and then is connected with the socket in the limiting slot in an inserted mode. A user can easily insert the plug-in card without precise alignment, when the plug-in card of small electronic equipment is used, the guide slot can accurately introduce the plug-in card into the jack and precisely plug the plug-in card into the socket in the limiting slot, the condition of poor contact caused by deviation of the plug-in card is reduced, and the stability and reliability of equipment operation are improved.

The utility model relates to a pressure switch structure and relates to the technical field of switch devices, in order to solve the problem that contact abrasion is easily caused by pressure change of a traditional pressure switch, the pressure switch structure comprises a shell, a pressure cavity is formed in the shell, an ejector rod is movably installed in the pressure cavity, and a pressure connector used for driving the ejector rod is arranged at the end of the ejector rod. A connecting piece is further arranged on the ejector rod, two movable contact points are symmetrically arranged on the connecting piece, two static contact points are arranged in the pressure cavity and correspond to the two movable contact points respectively, each static contact point is provided with a lug plate, a reset assembly used for resetting is arranged on the ejector rod, and a buffer assembly is arranged in the pressure cavity. The buffer assembly comprises a buffer seat and an elastic piece, the buffer seat is connected to the connecting piece, the elastic piece is connected into the pressure cavity, the elastic piece is arranged above the buffer seat and matched with the buffer seat, and the buffer assembly further comprises an adjusting piece used for adjusting the extending length of the elastic piece. The method has the effect of prolonging the service life.

The utility model relates to connector technical field especially, it is a kind of efficient conductive type booster plug socket assembly, including plug mechanism and socket mechanism, the female terminal of being equipped with with contact unit in socket mechanism is connected, the contact unit includes two contact plates of symmetrical distribution, and multiple openings are passed through and are set up on the contact plate, and then make multiple contact pins be formed on contact plate, the middle region of contact pin is suddenly curved to two contact plate center direction, the male terminal of welding is inserted between two contact plates. The design adopts the contact unit of special structure, increases the contact point and area with terminal, avoids instantaneous break, ensures that contact pressure is uniform and persistent, stably transmits after boosting large current, improves charging efficiency.

The utility model relates to the technical field of wiring board shells, in particular to a shell for small household appliances, which comprises a shell body, a protection assembly is arranged at the top of the shell body, and a heat dissipation assembly for preventing the shell body from being overheated is arranged on the protection assembly. According to the utility model, through the arrangement of the protection assembly, when power connection is needed in use, a plug of a connecting wire is inserted into the top of the housing, then the top of the housing is covered with the protection cover, the connecting wire is led out from the wire slot, and the housing is protected by the dust cover, so that dust attached to the housing can be reduced, and the condition that the wiring board is in poor contact due to too much dust is reduced; meanwhile, the protective cover can also reduce contact between water and the shell due to unexpected situations, the situation that components in the shell are short-circuited and damaged is reduced, the safety of the wiring board is improved through the protective assembly, and through the arrangement of the heat dissipation assembly, after the protective cover covers the top of the shell, heat dissipation is conducted through heat dissipation grooves in the two sides, and the situation that the temperature in the protective cover is too high is avoided.

The invention relates to the technical field of semiconductor laser detection, in particular to a semiconductor laser bar detection device and method. The device comprises a detection support and a detection clamp, the detection clamp is movably installed on the detection support, detection probes are movably installed on the detection support and the detection clamp, the detection clamp comprises a back plate and a positioning block, the back plate is horizontally arranged, the positioning block is vertically installed on the back plate, and the positioning block is movably installed on the back plate. And the positioning block is provided with a vertical strip-shaped groove for placing a semiconductor laser bar. The detection support and the detection clamp facilitate test connection of the semiconductor laser bar, the detection shell is used for isolating the detection environment of the semiconductor laser bar, interference of moisture and impurities in air on detection of the semiconductor laser bar by the detection probe is reduced, and the back plate is beneficial to fixing the positioning block on the horizontal plane. The positioning block is used for clamping the to-be-detected semiconductor laser bar, so that the to-be-detected semiconductor laser bar is prevented from shaking to interfere with detection.

The utility model discloses an explosion-proof surge protection device, which relates to the technical field of surge protection devices and comprises a surge protection device body. A plurality of first bolts are installed at one end in the surge protection device body in a threaded mode, a second bolt is connected to one end, at the bottom of each first bolt, in the surge protection device body in a threaded mode, and a plurality of cables are inserted into the top of the surge protection device body. And one end of the surge protection device body at one end of each first bolt is slidably provided with a baffle plate through a fixing block. According to the utility model, the baffle plate, the fixing block, the partition plate and the connecting block are arranged to prevent the first bolt and the second bolt from falling off due to vibration or impact, and the limiting component and the clamping component are arranged to limit the baffle plate and the partition plate, so that firm and reliable connection between the cable and the surge protection device is ensured; and meanwhile, electric arcs and sparks generated due to poor contact can be reduced, so that an explosion-proof effect is achieved.

The invention discloses an anti-electric shock multi-channel output intelligent switch, which relates to the field of intelligent switch circuit structure, and comprises a main control chip, a power circuit module, a conversion circuit module, a fault detection circuit module, an output circuit module, a first operational amplifier chip, and a second operational amplifier chip. After someone touches a single live wire of a household, the fault detection circuit module detects a zero-sequence current, and the main control chip quickly disconnects the main live wire from the first power wire of the household, and disconnects the main neutral wire from the second power wire of the household, and connects the main live wire to the second power wire of the household, and the main neutral wire to the first power wire of the household, so that the original live wire of the household becomes the neutral wire of the household, and the neutral wire of the household becomes the live wire of the household, so that the human body does not get an electric shock or trip when touching the single live wire, and multiple predetermined current outputs are realized through the output circuit module, so as to meet the user's demand for classified control of household electrical appliances.

This invention relates to the field of electronic component testing technology, specifically to a probe protection method based on a flexible buffer layer. The method includes: setting a flexible buffer layer with clearance holes on the surface of a test fixture base; the buffer layer being composed of a porous flexible material with resilience; placing the product to be tested above and positioning it on the buffer layer; applying test pressure through a pressing device to compress and deform the buffer layer, causing the probe to extend from the clearance holes for testing; after testing, the buffer layer automatically springs back to its original position, and the clearance holes tend to close, completely blocking the probe tip. This invention utilizes the porous structure to generate a purging effect to clean the test points during the compression stage, and utilizes negative pressure to generate an adsorption effect to collect dust and debris during the rebound stage. Simultaneously, the anti-static material dissipates static electricity. This method achieves three major functions simultaneously—probe scratch prevention, contact interface self-cleaning, and electrostatic protection—without changing the original testing process or adding a driving mechanism, making it suitable for batch online testing production lines.

The utility model relates to an aviation plug with stable connection, and aims to solve the technical problems of poor contact and even separation caused by the fact that the connection between the plug and a socket is affected by vibration and is easy to loosen in the use process of the current aviation plug, the connection stability is relatively low, and certain potential safety hazards exist. Comprising a socket body and a plug body inserted into the socket body, a supporting ring is fixedly arranged on the outer edge face of the plug body, a hanging self-locking mechanism is arranged on one side of the outer edge face of the supporting ring, and a threaded knob is installed on the outer edge face of the socket body in a threaded fit mode. And a plurality of hanging grooves for hanging and connecting the hanging self-locking mechanisms are formed in the outer edge surface of the threaded knob in an annular array. The socket has a self-locking structure, so that the problem of loose connection caused by vibration can be avoided, the conditions of poor contact and separation are reduced, the plugging stability is improved, and the potential safety hazard is eliminated.

This utility model discloses a magnetic self-sealing quick connector for natural gas pipelines, relating to the field of natural gas pipeline technology. The magnetic self-sealing quick connector for natural gas pipelines includes a male connector with an array of fixed grooves on its surface. A U-shaped sleeve is fixedly connected to one side of the male connector, and an elastic washer is fixedly connected to the recess of the sleeve. Copper gaskets are movably mounted on both sides of the elastic washer. A positive magnet is fixedly connected inside the sleeve. A connecting body is movably connected to the side of the copper gasket away from the sleeve. In this magnetic self-sealing quick connector for natural gas pipelines, the combined effect of the magnetic attraction force and the pre-tightening force of the elastic washer ensures that the copper gaskets are always in tight contact, reducing poor contact caused by vibration or slight displacement. The double fixing structure of the elastic ring and the connecting nut within the annular groove further enhances the anti-loosening capability of the terminal connection.

The invention relates to the technical field of synchronous motors, and discloses an efficient busbar connection permanent magnet synchronous motor which comprises a motor stator, a busbar and a connection module, the section of the motor stator is in a circular ring shape, the motor stator is arranged in the motor, the inner side of the motor stator is used for placing a motor rotor, and a stator winding is arranged in the motor stator and is a winding coil; two coils with different diameters are arranged in the stator winding, the two coils are uniformly arrayed along the circumference of the motor stator, the motor can generate different rated powers to drive the rotor to move under the condition that the coils with different diameters work independently, connecting end pins are arrayed on the busbar, and the connecting end pins are connected with the stator winding. The ends of different stator windings are connected with different connecting end pins, the other ends of the connecting end pins are connected with a connecting module, the connecting module is provided with a power supply interface connected with a power supply end, and the connecting module can control a power supply to flow into different connecting end pins in the busbar so as to realize power-on and power-off of coils with different diameters in the stator windings.

The utility model relates to the technical field of electronic connectors, in particular to a double-Ping connector. Comprising an electronic connector arranged on a circuit board, the electronic connector is respectively provided with a row of upper pins and a row of lower pins, the upper pins and the lower pins are distributed in a staggered manner, and an insulating separator is arranged between the upper pins and the lower pins. The staggered parallel distribution of the pins on the two sides can increase the stability of contact points and reduce the problem of poor contact caused by vibration or impact. The design ensures the reliability and stability of the connector in long-term use. Meanwhile, due to the staggered design of the pin positions, electromagnetic interference between the adjacent pin positions can be effectively reduced, the anti-interference capability of the whole connection system is improved, and the electromagnetic interference between the upper pin and the lower pin can be further improved through the insulating separator arranged between the pin positions.

The utility model relates to the technical field of electric power equipment, and specifically relates to a household electric meter of quick wiring, including electric energy, the positive side of electric energy meter below is provided with the junction box, the inner chamber of junction box is equipped with four groups of quick wiring device, every group of device contains support plate, U type elastic sheet, the baffle of band pass slot and the limiting post, through manual pressing limiting post makes the upper end of U type elastic sheet pressure deformation, drives the baffle to move down, and the sliding pair formed by pass slot and support plate allows the baffle displacement, at this moment, the clearance between the baffle and support plate is produced, can put the line into and then loosen the limiting post, through the baffle up -shift of double reset spring cooperation reset makes the line of the line and the contact of the conductive support plate and makes the line contact conduction, and the function of the label identification wiring avoids the wrong connection, solves the low efficiency of traditional electric meter wiring, the problem of bad contact, also improves the security, realizes the tool -free quick wiring, and the efficiency is improved.

The utility model relates to intelligent whiteboard pen technical field, concretely is a double -end interactive whiteboard pen, including pen holder, hanging rod, contact and protection device, hanging rod and pen holder fixed connection, contact is fixed at one end of pen holder, and contact has two, two contacts are arranged at the both ends of pen holder respectively, and the protection device sets up on the surface of pen holder, and the protection device includes assembly sleeve, and assembly sleeve and pen holder fixed connection, and the surface rotationally connected of assembly sleeve has torsion bar, the utility model, can when not using double -end whiteboard pen, the contact is shielded with the aid of the elastic force of torsion spring drive pressure bar and cylinder, reduces the contact to expose directly and be stained dust, chalk dust or be caused by tea water splashing and be damped oxidation, prevents the contact from being impacted deformation, abrasion when the pen body falls simultaneously, effectively reduces the contact to contact bad problem, guarantees the key signal stable transmission and electromagnetic wave launch device normal work, prolongs the service life of contact, also need not frequent disassembly maintenance.

The microswitch comprises a shell, a first metal contact piece and a second metal contact piece, the second metal contact piece is provided with an elastic bending part which extends towards the direction of the first metal contact piece, and the free end of the bending part is in disconnectable connection with the first metal contact piece; a pressing piece is arranged on the shell, one end of the pressing piece extends into the shell and abuts against the upper end face of the bent part, a reset spring is arranged in the shell, one end of the reset spring abuts against the inner bottom wall of the shell, and the other end of the reset spring abuts against the lower end face of the bent part; the bending part extending towards the direction of the first metal contact piece is arranged on the second metal contact piece to replace a metal connecting piece, and only one silver contact needs to be arranged on each of the first metal contact piece and the bending part, so that the number of the silver contacts is reduced, and the cost is reduced; the reduction of contact points also reduces the occurrence of poor contact, and the reduction of parts also makes the assembly of the microswitch simpler.

The invention relates to the technical field of connectors, and particularly discloses a straight high-voltage connector for a new energy automobile, which comprises a plug and a socket, the plug comprises a first shell, a first insulating sheath, a pin terminal and a wire clamp assembly; the pin terminal can be limited and fixed in the first insulating sheath through the elastic limiting piece and the limiting rod; the socket comprises a second shell, a second insulating sheath and jack terminals; the second shell and the first shell can be locked and connected in the butt joint direction through bolts. The pin terminals and the jack terminals can be positioned and butted more accurately, poor contact or loosening of the plug and the socket in use is prevented, and stability and safety are high; the electromagnetic shielding performance and the mechanical strength are good, the reliability is high, and the required assembly space is small; according to the assembling method, rapid and efficient connection of the cable at the plug end of the connector is realized, accurate positioning and butt joint of the socket and the plug in plugging use can be ensured, the connection stability of the connector is enhanced, and the connector is convenient to use.

The utility model provides a bump structure and a chip. The bump structure comprises a bonding pad, a metal adhesion layer and a bump, the bonding pad is located on the surface of the substrate, the metal adhesion layer is located above the bonding pad, the bump is located on the metal adhesion layer, and at least part of a bonding interface of the metal adhesion layer and the bump is wavy, so that the bump and the metal layer are tightly bonded, the heat resistance and vibration resistance of the bump structure can be improved, and the reliability of the bump structure is improved. The problem that the salient point structure cracks is solved, poor contact caused by the salient point cracks is reduced, the connection resistance and signal loss of the salient point structure are reduced, the connection reliability of the salient point structure is improved, and the reliability and the electrical performance of the chip are improved. The chip comprises a substrate and the bump structure located on the substrate.

A wire harness wiring terminal relates to the technical field of wire harness connection and comprises a terminal body, the terminal body comprises a crimping structure located in the middle of the terminal body, the crimping structure is arranged to be capable of wrapping a wire core of a wire harness and comprises a bearing part and a wire pressing part, the bearing part is of an arc-shaped sheet-shaped structure with an opening facing the wire pressing part, and the wire pressing part is of an arc-shaped sheet-shaped structure with an opening facing the wire pressing part. The wire pressing part comprises two wire pressing pieces arranged on the two sides of the bearing part, the sides, away from the bearing part, of the two wire pressing pieces are bent towards each other, and one wire pressing piece is bent to the inner side of the other wire pressing piece. According to the utility model, through arranging the crimping structure, the wire core of the wire harness can be completely wrapped, so that the wire core can be prevented from being exposed from a gap between the two wire pressing pieces, and the risk of poor contact or short circuit caused by the exposure of the wire core is reduced, thereby ensuring the stability and conductive performance of wire harness connection, reducing the operation difficulty of an operator, and improving the working efficiency. And the working efficiency is improved.

The application discloses a power device, a circuit board assembly and electronic equipment, and relates to the technical field of electrical equipment, comprising a body, a first surface and a second surface oppositely arranged along a first direction, the first surface having a welding area; a plurality of limiting members are arranged on the first surface and protrude from the first surface along the first direction, and the plurality of limiting members are arranged at intervals on the periphery of the welding area, and the limiting members abut against the heat sink along the first direction. When the welding area of the body and the heat sink are welded by means of solder paste or other welding materials, the plurality of limiting members are arranged at intervals on the periphery of the welding area and abut against the heat sink, which can effectively prevent the power device from tilting due to the flow of welding materials or thermal stress during the welding process, ensure that the power device remains flat after welding, thereby improving the welding quality and reliability, enhancing the heat dissipation performance, reducing the risk of poor electrical contact or uneven heat distribution caused by the tilting of the power device, and improving the safety and reliability of the power device.

This utility model discloses a modular pluggable structure for the front interface of a computer host, relating to the field of computer host technology. It includes a computer host and a pluggable module inside the host. A limiting connecting plate is provided on one side of the pluggable module. The linkage mechanism of the rotating component and the telescopic component enables stable connection and convenient disassembly of the module. The cooperation of the rotating torsion spring and the return spring allows the pluggable module to automatically pop out during disassembly and precisely lock during installation. Combined with the limiting effect of the guide sleeve and the guide connecting post, it ensures a stable interface connection, avoiding the loosening problem of traditional snap-fit ​​structures. The tool-free operation design greatly simplifies the maintenance process; users only need to press the fixed connecting block to unlock and install the module. Combined with the rotating pop-out function, it significantly improves cleaning and maintenance efficiency, reduces contact problems caused by dust accumulation on the interface, and thus provides an efficient solution for the expansion and maintenance of computer host interfaces, improving user experience and equipment usability.

The invention provides a collector ring carbon brush structure of a wind driven generator, and relates to the technical field of generator carbon brush maintenance. The collecting ring is arranged in the generator main body and is connected with the generator; the brush holder supporting mechanism is arranged in the generator main body and is fixedly connected with the interior of the generator shell; the carbon brush mounting mechanism is arranged on the brush seat supporting mechanism and fixedly connected with the brush seat supporting mechanism, and a carbon brush is mounted on the carbon brush mounting mechanism; the carbon brush is of a cuboid structure, after the carbon brush is installed on the carbon brush installation mechanism, the side face of the carbon brush makes contact with the collecting ring, and the shape of the contact face of the carbon brush is matched with the external shape of the collecting ring. And the monitoring device is arranged in the generator main body, is connected with the carbon brush mounting mechanism, and is used for detecting the wear degree of the carbon brush and the contact condition of the carbon brush and the collecting ring. When the carbon brush is worn to a certain degree, the carbon brush head can be replaced, and the service life of the carbon brush is prolonged.

The invention relates to the technical field of automobiles, in particular to an automobile gear combination switch which comprises a shell internally provided with a control panel. The mode switch mechanism is installed in the shell and electrically connected with the control panel, a button groove is formed in one side of the shell, a button assembly is arranged in the button groove in a matched mode, the button assembly slides relative to the shell, and the button assembly is used for controlling a switch of the mode switch mechanism; the gear selecting switch mechanism comprises a gear-up assembly and a gear-down assembly, the gear-up assembly and the gear-down assembly are both installed in the shell and electrically connected to the control panel, a sliding groove is formed in one side of the shell, a pushing assembly is arranged at the position of the sliding groove, and the pushing assembly slides relative to the shell; and the pushing assembly is used for controlling the on-off of the shift-up assembly or the on-off of the shift-down assembly. The combined switch has the effects of optimizing the structure of the combined switch and reducing the production cost.

The utility model discloses a plug and socket assembly, which comprises a mounting block and a guide head, one end of the mounting block is provided with a first groove, the inner wall of the first groove is provided with a second groove, the guide head is fixedly arranged in the second groove, the other end of the mounting block is provided with a plurality of third grooves communicated with the second groove, the plurality of third grooves are not communicated with each other, and the guide head is fixedly arranged in the second groove. First through holes communicated with the second grooves are formed in the second grooves, wires are fixedly arranged in the third grooves, the wires penetrate through the first through holes and are connected with the guide heads, the other ends of the wires extend out of the third grooves and penetrate through the threading assembly, and the wires are connected with the threading assembly. According to the utility model, through the arrangement of the multi-layer grooves and the wires, the stability and reliability of the plug and socket assembly are ensured, the risks of poor contact and wire falling are reduced, and especially the overall performance of the plug and socket assembly can be effectively improved through the connection mode of the guide heads and the wires.