1043results about How to "Improve connection reliability" patented technology

The invention relates to the technical field of solar cells, and particularly discloses a back contact cell, a back contact cell string, a cell assembly and a photovoltaic system.The back contact cell comprises first grid lines and second grid lines which are alternately arranged in the first direction; the first Pad points and the second Pad points are alternately arranged in the second direction, the first Pad points are connected with the first grid lines, and the second Pad points are connected with the second grid lines; wherein the first grid line comprises a first grid line body and a third grid line, and the first grid line body and the third grid line are connected into an integrated structure; along the first direction, the third grid line is arranged at the corresponding first pad point, and the width of the third grid line is greater than that of the first grid line body. The problem of welding tension in the prior art can be solved, and the connection reliability between the welding strip and the fine grid is improved.

The invention provides a spliced frame structure for a flat plate type satellite, and belongs to the technical field of satellite structures. The problems that an existing satellite frame is high in production cost and difficult to produce in batches are solved. The beam unit comprises an X-axis beam unit, a Y-axis beam unit and an inclined beam unit, the X-axis beam unit and the Y-axis beam unit are arranged in an orthogonal mode, an included angle is formed between the inclined beam unit and the X-axis beam unit, the X-axis beam unit comprises a first X-axis beam, a second X-axis beam, a third X-axis beam and a fourth X-axis beam, and the X-axis beam unit comprises a first X-axis beam, a second X-axis beam, a third X-axis beam and a fourth X-axis beam. The Y-axis beam unit comprises a first Y-axis beam, a second Y-axis beam and a third Y-axis beam, the oblique beam unit comprises a first oblique beam and a second oblique beam, and the splicing unit comprises a Y-axis separation mechanism connector and an X-axis separation mechanism connector. The frame structure is mainly used for a flat plate type satellite.

The invention relates to the field of household appliance equipment, and discloses a lifting mechanism, a floor brush assembly, cleaning equipment and a control method. The lifting mechanism is simple in structure, easy to install and set, small in occupied setting space, beneficial to miniaturization design of the whole machine and optimization of the product appearance, good in connection reliability of all parts, not prone to damage and long in service life. The lifting mechanism comprises a pneumatic part, an air inlet assembly, an exhaust assembly and a reset assembly, the pneumatic part is arranged in a shell, and the pneumatic part is connected with a first scraping strip; the air inlet assembly is arranged in the shell, the air inlet assembly can controllably inflate the pneumatic part, and the pneumatic part drives the first scraping strip to descend relative to the shell after being inflated; the exhaust assembly is arranged in the shell and can controllably exhaust the pneumatic part; the reset assembly is arranged on the shell, and the reset assembly drives the first scraping strip to be lifted relative to the shell after the pneumatic part exhausts air.

The invention provides a battery monomer, a battery and a power utilization device, and belongs to the technical field of batteries. Wherein the battery monomer comprises a first shell wall, a pole and an insulation sealing structure, the pole comprises a penetrating part and a first extension part, the first extension part extends to the outer side of the outer surface or the inner side of the inner surface of the first shell wall, and a first corner facing the first shell wall is arranged at the joint of the first extension part and the penetrating part; the first shell wall comprises a second corner arranged corresponding to the first corner, the insulation sealing structure is matched between the first shell wall and the pole and comprises a first part and a second part, the material hardness of the first part is smaller than that of the second part, and the first part is arranged close to at least one of the first corner and the second corner relative to the second part. According to the battery monomer, the risk of cracking of the insulation sealing structure is reduced, the reliability of insulation sealing matching between the first shell wall and the pole is improved, and the reliability of the battery monomer is improved.

The utility model relates to the technical field of audio, in particular to electronic equipment and a middle frame. The electronic equipment comprises a middle frame, a display screen and a loudspeaker module, the display screen is installed on one side of the middle frame, a sound outlet channel is formed between the display screen and the middle frame, the middle frame is provided with a communicating hole, the communicating hole is communicated with the sound outlet channel, the loudspeaker module is installed on the side, opposite to the display screen, of the middle frame, and sound emitted by the loudspeaker module enters the sound outlet channel through the communicating hole; the electronic equipment is provided with an avoiding area and a flow guide part, and the flow guide part is located between the communicating hole and the avoiding area. According to the electronic equipment, the flow guide part is arranged and is used for guiding flow, so that the flow guide part guides air in the sound outlet channel to reduce the maximum flow speed of the air in the sound outlet channel, noise is reduced, the sound quality of the electronic equipment is improved, other structures of the electronic equipment cannot be influenced, and the miniaturization design of the electronic equipment is facilitated; and the use experience of the user is improved.

The invention provides a battery monomer, a battery and a power utilization device, and belongs to the technical field of batteries. Wherein the battery monomer comprises a shell, a pole column body and a pole column cover plate, the shell defines a containing cavity, the pole column body is arranged on the shell, a communication channel communicated with the containing cavity is formed in the pole column body, the pole column cover plate is arranged on the pole column body, and a liquid injection hole communicated with the communication channel is formed in the pole column cover plate. According to the battery monomer, the area of the pole structure is increased under the condition that the size of the shell is not changed, so that the current passing efficiency of the battery monomer is improved, the processing and forming of the liquid injection hole are facilitated, the structure and processing of the shell are simplified, in addition, in the production and use processes, the possibility of splashing and overflowing of electrolyte is reduced, and the service life of the battery monomer is prolonged. Therefore, the reliability and the manufacturability of the battery monomer are improved.

The invention discloses a large-diameter direct-drive permanent magnet synchronous double lock catch and an assembling method thereof, the large-diameter direct-drive permanent magnet synchronous double lock catch comprises a rotor hub, the periphery of the rotor hub is correspondingly and sequentially wound with a plurality of punching sheet magnetic isolation fixing blocks, a clamping groove is correspondingly formed between the tops of every two adjacent punching sheet magnetic isolation fixing blocks, a punching sheet is correspondingly arranged in each clamping groove, and the punching sheet magnetic isolation fixing blocks are arranged in the clamping grooves. A placing groove is correspondingly formed between every two adjacent punching sheets, and magnetic steel is correspondingly arranged in the placing grooves. An iron core of an original integrated rotor punching sheet is split into a single-tooth structure and is divided into the punching sheets and the punching sheet magnetic isolation fixing blocks, the punching sheets and the punching sheet magnetic isolation fixing blocks are distributed and installed respectively, installation is convenient, and meanwhile the operation difficulty of the technology is greatly reduced.

The utility model discloses a battery device and a power utilization device. The battery device comprises a battery monomer, a box body and a filling medium, the battery monomers are located in the box body, the box body comprises a beam body, and a cavity is formed in the beam body; and the filling medium comprises a plurality of granular filling units, and the filling medium is filled in the cavity. The box body is constructed by the beam body with the cavity, so that the weight of the box body can be well reduced, and the lightweight design of the box body is facilitated. By filling the beam body of the box body with the plurality of granular filling units, dynamic load can be well absorbed and consumed, the beam body can be well supported, the structural strength of the beam body is effectively improved, and when the beam body is broken due to impact, the granular filling units in the beam body can also be released from the gap of the broken part, so that the service life of the beam body is prolonged, and the service life of the beam body is prolonged. Impact force can be better consumed, and damage caused by impact or impact is further reduced.

The embodiment of the utility model provides a battery device and a power utilization device, and relates to the technical field of batteries, and the battery device comprises a battery monomer and an isolation plate. The battery cell includes a housing and a terminal assembly. The shell comprises a first wall, and the terminal assembly is arranged on the first wall. The isolation plate comprises a main body part and a sealing part, the main body part is provided with a first through hole, and at least part of the terminal assembly is located in the first through hole; and the sealing part is arranged along the circumferential direction of the first through hole and is connected with the main body part, and the sealing part seals a gap between the hole wall of the first through hole and the terminal assembly. According to the battery device provided by the embodiment of the invention, the sealing part is arranged at the circumferential position of the first through hole and seals the gap between the hole wall of the first through hole and the terminal assembly, so that the phenomenon that particulate matters of an assembly part or particulate matters generated by an assembly process fall into the gap in a subsequent assembly process can be reduced, and the sealing performance of the battery device is improved. Therefore, the reliability of the final battery device is improved.

The utility model discloses an extension connecting bolt for a solar photovoltaic support, which comprises a bolt head, a screw rod, a first protective cover, a nut and a second protective cover, the screw rod is fixed at the bottom of the bolt head, the nut is screwed on the main screw rod, the top of the bolt head is provided with a first threaded hole, the first protective cover covers the bolt head, and the second protective cover covers the second threaded hole. A stud matched with the first threaded hole is arranged in the first protective cover and screwed on the first threaded hole, and a first water expansion sealing ring is fixed to the end, close to the nut, of the first protective cover. The first protective cover covers the bolt head, and the second protective cover covers the nut and the screw rod located on the same side of the nut with the connecting sleeve, so that the bolt can be isolated from the external environment, the bolt is located in a relatively independent space, the bolt is not prone to making contact with external rainwater, dust, insect and bird excrement and other substances, and the service life of the bolt is prolonged. And the service life of the bolt is prolonged, and the connection reliability of the bolt is improved.

The embodiment of the invention discloses a structural member and electronic equipment, relates to the technical field of electronic equipment, and is used for solving the technical problem that a carbon fiber composite material is easy to generate ESD (Electro-Static Discharge). The structural member comprises a structural member body and a conductive part. The structural part body comprises an insulating part and carbon fiber filaments, the carbon fiber filaments are embedded in the insulating part, and a part of the carbon fiber filaments are exposed out of the insulating part. And at least part of the conductive part is contacted and electrically connected with the exposed carbon fibers. Due to the fact that the carbon fiber filaments have good conductivity, the conductive part arranged on the structural part body can be communicated with the exposed carbon fiber filaments to form a conductive path, and the carbon fiber filaments in the structural part can serve as a discharging path of electrostatic current. Meanwhile, the conductive part in the structural member can also be used as a point location for electric connection. When a large current passes through the structural member, an electrostatic current can be discharged outwards through the carbon fiber filaments and the conductive part, so that the problem of ESD is reduced.

The invention provides a large-span steel corridor structure high-precision assembling method, and belongs to the technical field of building construction, and the method comprises the step of constructing an accurate and reliable structure assembling technical system through deep fusion of a building information model and a three-dimensional space coordinate system. According to the method, a laser positioning instrument and a multi-stage torque sensor are introduced for the first time, and accurate positioning of the steel member and fine control of bolt torque are achieved. From a pre-assembly site, component installation is conducted layer by layer through an axis control net and an angular point control net, and a staged bolt fastening strategy is adopted and comprises initial tightening torque control, semi-tightening torque control and final tightening torque control. In the assembling process, finite element analysis software is used for conducting multiple times of structure checking calculation, the space position error and the structure stability are strictly monitored, and the geometric accuracy, the connection reliability and the overall performance of the large-span steel corridor structure are ensured. According to the method, the problem that large accumulative errors are inevitably caused by the fact that manual measurement and mechanical limiting modes are generally adopted for positioning and connection at present is solved.

The invention discloses a power grid cable connection auxiliary device which comprises an insulating shell, a connector is slidably connected to the top of the insulating shell, a fixing frame is fixedly connected to the top of the connector, a fixing ring is fixedly connected to the top of the fixing frame, a conductive base is fixedly connected to the interior of the insulating shell, and a sliding cylinder is fixedly connected to the front face of the conductive base. A gas guide rod is fixedly connected to the front face of the conductive seat, a conductive tube is fixedly connected to the interior of the sliding cylinder, a buffer head is slidably connected to the interior of the conductive tube, the top of the insulating shell communicates with a flow divider, a rod-shaped gas valve is slidably connected to the front face of the flow divider, and a gas valve connecting block is fixedly connected to the front face of the rod-shaped gas valve. According to the device, by means of the poor contact separating mechanism and the conductive effect maintaining mechanism, loosening of the cable connecting position is relieved, the loosened cable is automatically pushed away when contact is poor, and the safety of a line is improved.

The utility model relates to the technical field of refrigeration equipment, and discloses a refrigerator which comprises a refrigerator body, a door body and a power supply assembly. The power supply assembly comprises a power supply box, a power line, a power supply cover and a locking screw; the power line comprises a fixed seat and a cable connected with the fixed seat; the fixing seat is clamped between the power supply box and the power supply cover, and the locking screw sequentially penetrates through the power supply cover and the fixing seat and then is connected with the power supply box; wherein a pressing block is arranged on the power supply box, the pressing block and the locking screw are oppositely arranged on two sides of the fixing seat, and the fixing seat is pressed on the power supply box by the pressing block. The two sides of the power line are fixed in a mode that the pressing blocks are matched with the locking screws, so that the number of used screws is reduced; the locking screws sequentially penetrate through the power source cover and the fixing base and then are connected with the power source box, the locking screws synchronously achieve the step of fixing the power line and the power source box and the step of fixing the power source cover and the power source box, the number of used screws is further reduced, the installation efficiency is improved, and meanwhile the assembling cost of the refrigerator is reduced.

The invention relates to the technical field of all-terrain vehicles, and discloses an all-terrain vehicle frame with a power battery pack having an emergency separation function and an assembly process of the all-terrain vehicle frame. The battery body is connected with a vehicle frame through the emergency separation type damping mounting structure, and the mounting structure comprises a connecting assembly and two sets of locking structures. Wherein the locking execution assembly is provided with an elastic locking piece and a penetrating connecting rod, the driving assembly comprises a rotating pressing piece, a pressing rod and an anti-collision rod, and the anti-collision rod is integrated with a vehicle body side covering piece and is provided with a prefabricated breaking point. The invention further provides a corresponding assembly process which comprises the four steps of connecting assembly preassembling, buffer system installing, locking mechanism assembling and battery body installing, and the assembly quality is ensured by controlling parameters such as specified torque, pre-compression amount and pre-pressure. Through the emergency separation type damping installation structure and the integrated anti-collision design, the safety and the structural stability of the frame are improved.

The invention relates to a shield segment socket type connecting structure and a construction method. A standard segment system comprises standard blocks, and the multiple standard blocks are spliced through a segment self-locking system; the adjacent segment systems are assembled at the two ends of the standard segment system through the segment self-locking systems, and the capping segment system is installed between the two adjacent segment systems. The adjacent single-ring pipe pieces are spliced through the pipe piece self-locking system in the longitudinal direction. The duct piece self-locking system has the beneficial effects that the duct piece self-locking system adopts the socket type connecting structure to connect the duct pieces, a traditional bolt connecting mode is replaced, the connecting mode is high in construction speed and easy and convenient to operate, external tools are not needed, time and labor cost are saved, and the duct piece connecting efficiency and reliability are improved; the integral bearing capacity of the duct piece structure can be improved, and the use requirements in different environments can be met.

The utility model discloses an ultrasonic gas meter binding post assembly which comprises a binding post body, a needle-shaped terminal, a waterproof connector needle-shaped male end, a circuit board, a valve signal female end and a metering module signal female end, the circuit board is arranged in the binding post body, the needle-shaped terminal and the waterproof connector needle-shaped male end are both arranged on the circuit board, and the valve signal female end is connected with the metering module signal female end. The number of the waterproof connector needle-shaped male ends is two, the two waterproof connector needle-shaped male ends are arranged on the lower surface of the circuit board, and the valve signal female end and the metering module signal female end are detachably connected with any waterproof connector needle-shaped male end to achieve function transmission. According to the ultrasonic gas meter binding post assembly, connection of an external signal line can be omitted, electromagnetic interference is reduced, and the anti-interference performance of an ultrasonic gas meter is improved; the binding post is simple in structure, the binding post body and the circuit board are injection-molded, and connection is stable; meanwhile, a plurality of sealing grooves are formed and used for sealing the binding posts, the controller and the gas meter shell, and the connection reliability is high.

The embodiment of the utility model provides a battery device and a power utilization device. The battery device comprises a box body, a battery monomer assembly, an end plate and a potential assembly, the box body comprises a first wall. The battery monomer assembly is accommodated in the box body and is arranged on the first wall, and the battery monomer assembly comprises a plurality of battery monomers which are stacked along the first direction; the end plate is arranged at the end part of the battery monomer assembly along the first direction, and the end plate is in insulated connection with the first wall. One end of the potential assembly is connected with the end plate, the other end is connected with the first wall, and the potential assembly is configured to equipotentially connect the end plate and the first wall in a first state; in the second state, the non-equipotential connects the end plate and the first wall. According to the technical scheme, the reliability of the battery device can be improved.

The utility model discloses a rotational flow tube type air prefilter, belongs to the technical field of air prefilters, and solves the problems of high cost and short service life of the existing fan blade type prefilter. The device comprises an air inlet cavity and an air outlet cavity, a plurality of rotational flow pipes are arranged in the air inlet cavity, the air inlet cavity is communicated with the air outlet cavity through the rotational flow pipes so that fluid containing impurities in the air inlet cavity can enter the air outlet cavity after being separated by the rotational flow pipes, and the rotational flow pipes are symmetrically arranged relative to the X-axis direction and the Y-axis direction at the same time. According to the cyclone tube type air prefilter, the production cost can be effectively reduced, the service life is prolonged, and the impurity separation effect is improved.

The invention relates to a chip position prediction and adjustment method, device and equipment during reverse conversion, and a storage medium, and the specific method comprises the steps: employing a reversing device with a self-adaptive clamping adjustment function to pick up a chip, collecting the image information of the chip and a substrate, carrying out the feature extraction, and determining the relative position relation of the chip and the substrate; matching the coordinates of the chip bumps with the coordinates of the substrate welding spots in a one-to-one correspondence manner; according to the rotation center and length of a mechanical arm of the reversing device and the relative position relation between the chip and the substrate, the theoretical alignment position of the chip and the substrate after the chip is overturned is calculated, and a moving route is planned; the chip is moved according to the moving route, the state of the chip is monitored through multiple sensors of the mechanical arm, and the actual position of the chip is predicted based on the monitoring result; by comparing the actual position and the theoretical alignment position of the chip, the final position and the final movement route of the chip are adjusted, so that the purposes of effectively solving the problem of chip deformation and improving the precision and the reliability of inverse transformation time and chip position prediction are achieved.

The invention relates to the technical field of material brazing, and provides a welding method for quartz glass, which comprises the following steps: preparing nano-silver paste; coating the nano-silver paste on the bonding surface of the quartz glass and the material to be connected; the bonding surface of the quartz glass and the bonding surface of the to-be-connected material are in contact and abut against each other, and the nano-silver paste is melted to form a welding joint; and cooling the welding joint, the quartz glass and the material to be connected. According to the welding method for the quartz glass, the connecting strength between the quartz glass and the to-be-connected material can be improved, and the situation that the quartz glass cracks is reduced.

The invention discloses an electric leakage detection alarm device and detection method for building electrical equipment, and relates to the technical field of electric leakage detection, and an electric leakage detection system uses a leakage protector, an infrared thermal imager, an ultrasonic technology and a millimeter wave radar technology to carry out electric leakage detection on the building electrical equipment; the data acquisition module uses a data acquisition device to acquire the use environment and the electric leakage condition of the building electrical equipment. One or more accurate electric leakage detection methods of an infrared thermal imager detection method, an ultrasonic detection method and a millimeter-wave radar detection method are used on the basis of an appearance detection method and a leakage protector detection method, so that electric leakage signals in equipment and a line can be accurately identified, and the reason for the existence of leakage current can be found out; meanwhile, through detection of the use environment, the electric leakage problem caused by the environment problem can be reduced to a certain extent, and then electric leakage detection of the building electrical equipment under different use conditions and environments can be achieved.

The utility model discloses a magnetic circuit part and connector connection structure and an electromagnet, the magnetic circuit part comprises a magnetic circuit part and a connector, the magnetic circuit part comprises a coil rack and a yoke, the yoke and the coil rack are relatively fixed, an enameled wire is wound on the coil rack, a plurality of coil leading-out pins are arranged on the coil rack, and each end of the enameled wire is respectively wound and connected with the corresponding coil leading-out pins; the connector comprises an insulated support and a plurality of leading-out ends mounted on the support; the support is fixedly connected with the yoke, and the coil leading-out pins are electrically connected with the leading-out ends in a one-to-one mode respectively. The support of the connector is fixedly connected with the yoke, so that the fixing position of the connector is more flexible, the connector can be conveniently arranged according to actual requirements, the yoke has enough area to be connected and matched with the support, and the support is connected with the yoke through plastic and metal, so that the connector is more convenient to realize the connection and fixation of the support, and the connector is more convenient to use. And the connection reliability of the support can be improved.

The invention provides a lining which comprises a lining body and at least one grounding structure arranged on the lining body, the grounding structure comprises a grounding main body, a connecting part and a grounding part, the grounding main body is strip-shaped, the grounding main body and the lower end of the lining body are arranged at an interval, the connecting part is arranged at at least one end of the grounding main body in the extension direction, and the grounding part is arranged at the lower end of the lining body. The connecting part is connected with the lower end of the lining body and is electrically conducted; the grounding part and the connecting part are arranged at an interval along the extension direction of the grounding main body; the grounding part is used for being fixedly connected with a grounding piece in use and is electrically conducted. The invention also provides a semiconductor processing chamber.

The invention provides a high-temperature-resistant split type easy-to-fall interstage separation structure which comprises a front cabin, a rear cabin, a front cover plate, a rear cover plate and an interstage separation device, the front cover plate and the rear cover plate are both multi-petal type cover plates, the rear end of the front cabin is fixedly connected with the front end of the rear cabin, the front end of the front cover plate is embedded in the outer side of the front cabin, the rear cover plate is fixedly installed on the outer side of the front cabin, and the interstage separation device is fixedly connected with the front cover plate. The front end of the rear cover plate tightly presses the rear end of the front cover plate, a first cavity is formed between the front cover plate and the forecabin, a second cavity is formed between the rear cover plate and the forecabin, and the interstage separation device is installed on the inner side of the forecabin and corresponds to the first cavity. Reliable connection of the front cabin and the rear cabin is achieved through a simple structure, high-temperature loads can be borne through pressing fit of the front cover plate and the rear cover plate, the inter-stage separation device only needs to cut a small number of the rear end of the front cabin, the occupied space of the inter-stage separation device is reduced, the front cover plate can rapidly fall off after losing constraint, inter-stage rapid separation can be achieved, and the service life of the inter-stage separation device is prolonged. And the interstage separation efficiency can be improved.

The invention discloses a graphite-based current collector and tab welding method, and belongs to the technical field of current collectors, the graphite-based current collector comprises a conductive supporting layer, the supporting layer is made of a graphite-based thin film material, and the conductive supporting layer is provided with two surfaces in the thickness direction of the conductive supporting layer; a plurality of first holes are formed in a tab welding area of the conductive supporting layer at least corresponding to a welding surface, the first holes do not penetrate through the conductive supporting layer, at least one second hole communicated with the first holes is formed in the conductive supporting layer in the thickness direction, and the outer diameter of the first holes is larger than that of the second holes; the bonding filling layer is filled into the first hole and the second hole and forms a bonding effect with the tab, and the tab and the conductive supporting layer form an excellent thermal and electric conduction interface in the welding area. According to the invention, based on a graphite-based matrix material, an anchoring structure is formed in the tab welding area and the adapter body, so that the connection firmness of the current collector welding area and the adapter body is improved.

The invention relates to the technical field of photovoltaic equipment, and discloses a photovoltaic system, which comprises a photovoltaic module, the photovoltaic module comprises a laminated piece, a frame and a conductive piece, the frame comprises a first supporting part and a second supporting part which are connected, the first supporting part is supported on the side surface of the laminated piece, the second supporting part is supported on the front surface or the back surface of the laminated piece, and the conductive piece is arranged on the side surface of the laminated piece; the first supporting part is provided with a first via hole, the conductive piece is arranged on the second supporting part, and the laminating piece is electrically connected with the conductive piece; the junction box connecting piece is arranged in the first through hole in a penetrating manner, and one end of the junction box connecting piece is connected with the conductive piece; and the junction box and the photovoltaic module are arranged at an interval, and the junction box is connected with the other end of the junction box connecting piece in a pluggable manner. According to the photovoltaic system, the photovoltaic module and the junction box are arranged in a split mode, the probability that the photovoltaic module is shielded by the junction box is low, arrangement is convenient, and attractiveness is high.

According to the wiring harness integrated wiring terminal, a detection groove is longitudinally formed in the middle of a row seat body, a sensor assembly cover is arranged in the detection groove, a plug-in temperature measurement guide column is vertically arranged in the middle of the lower portion of the sensor assembly cover, a temperature controller is arranged in the plug-in end of the sensor assembly cover in a plug-in mode, and a temperature sensor is arranged in the plug-in end of the sensor assembly cover in a plug-in mode. The wiring terminal comprises an upper-layer wiring piece and a lower-layer wiring piece, the upper-layer wiring piece is in a right-angle edge folding type Z-shaped wiring piece, the lower-layer wiring piece is arranged below the upper-layer wiring piece in an attached mode, and a fixing boss is arranged on the top face of the middle of the upper-layer wiring piece. The upper-layer lug plate adopts a quick-plug structure, diversified circuit requirements of customers are met, the convenience of overall installation can be improved through a double-layer structure, more convenient installation can be achieved through fixing screws on one side, and the anti-interference capability of products is improved by serially connecting inductors.

The invention discloses a door lock which comprises a lock body, a main spring bolt, a driving gear, a driving seat and a grip seat are arranged on the lock body, the main spring bolt is in transmission connection with the driving gear, the grip seat is sleeved with a transmission gear meshed with the driving gear, and the driving seat is in sliding fit with the lock body. A driving motor, a first driven gear, a lifting gear, a damper and a second driven gear are arranged on the driving seat, the second driven gear is meshed with the driving gear, the first driven gear is meshed with the driving motor, a lifting groove is formed in the first driven gear, and a lifting boss inserted into the lifting groove is arranged on the lifting gear; matching teeth and a reset spring are arranged between the first driven gear and the second driven gear, and the damper is meshed with the lifting gear. A pressure spring is arranged between the lock body and the driving seat; an abutting flange is arranged on the peripheral wall of the grip base. The clutch device is simple in structure, rapid in clutch operation response, reliable in transmission structure use and good in use effect.