73results about How to "Improve electrical connection stability" patented technology

The invention relates to the technical field of LED display, and discloses a Mini / Micro LED and a manufacturing method thereof. The manufacturing method comprises the following steps: preparing metal conductive particle balls through a mechanical separation process or a spraying process; coating an insulating coating on the surface of the metal conductive particle ball and air-drying to form an insulating film; putting the metal conductive particle balls coated with the insulating films into provided insulating glue and stirring to form anisotropic conductive glue; printing anisotropic conductive adhesive on a bonding pad of the provided substrate through the provided hydrophobic nano steel mesh; stripping the hydrophobic nano steel mesh; the provided Mini / Micro LED chip is mounted on the anisotropic conductive adhesive located on the bonding pad, the insulating film is longitudinally broken by heating and pressurizing to expose the metal conductive particle balls wrapped in the insulating film, the metal conductive particle balls are respectively in contact with the Mini / Micro LED chip and the bonding pad to form a vertical conductive path, and the insulating adhesive is preliminarily cured to obtain the Mini / Micro LED, so that stable welding quality is realized; and the maintenance difficulty and the maintenance cost are low.

The invention relates to a quantum bit packaging device. The quantum bit packaging device comprises a shell, a substrate, a PCB (Printed Circuit Board) and a connector group, the shell is of a hollow structure and is made of an oxygen-free copper material; the substrate is transversely arranged in the shell, the substrate is of a straight-plate-shaped structure, a preassembling opening is formed in the substrate, and the preassembling opening is suitable for placing a chip; the PCB is transversely arranged in the shell, the PCB is located on the substrate, and the PCB abuts against the substrate; the connector group is arranged on the PCB, the connector is provided with a plurality of connectors, and the plurality of connectors and the PCB are longitudinally inserted. The quantum bit packaging device provided by the invention is high in integration level and easy to carry and deploy. Specifically, the PCB is tightly abutted against the substrate, and the chip is mounted between the substrate and the PCB, so that the overall integration level is high, the electrical connection stability between the components is further improved, and the later maintenance and upgrading work is greatly facilitated.

The utility model discloses a capacitor protection assembly and a capacitor, and relates to the technical field of capacitors, and the capacitor protection assembly comprises a housing, a cover body, a support, and a conductive assembly. The shell is provided with a containing cavity for containing the capacitor assembly. The cover body is arranged at the opening of the containing cavity in a covering mode. The support is installed on the cover body, and at least part of the support is located in the containing cavity. The conductive assembly comprises a first conductive part and a second conductive part which are connected, the first conductive part is directly or indirectly connected with the cover body, and the second conductive part is installed on the support. The support is provided with an electric fence, the electric fence is arranged on the peripheral side of the second conductive part, when the capacitor assembly breaks down, the cover body expands in the direction away from the support, and the first conductive part and the second conductive part are disconnected. According to the capacitor protection assembly, the capacitor protection capability can be improved, and the fault probability of the capacitor is reduced.

The utility model relates to an intelligent lighting control panel which comprises a display panel and a shell, a mounting groove is formed in the display panel, a plug penetrating through the display panel is inserted into the mounting groove, a socket is further inserted into one end of the plug, the socket is arranged in a mounting wall, and the shell is arranged in the mounting wall. A pull rod penetrating and extending to one end of the plug is slidably mounted in the plug. According to the intelligent lighting control panel, the plug is arranged on the display panel to be electrically connected with the operation control panel in the display panel, so that the control panel can be electrically connected through plugging of the plug, a connector is extended at the end of the plug, and an extrusion block is arranged to extrude the connector, so that the display panel can be electrically connected after the plug and the socket are plugged; the connector can be adjusted to open and abut against the socket for pre-fixation, the electrical connection stability is improved, meanwhile, the connection structure can be further hidden in the shell through the containing groove and the pull handle, and the installation attractiveness of the device is improved.

The utility model relates to the technical field of power distribution devices, and provides a confluence cabinet and an energy storage system.The confluence cabinet comprises a box body, a circuit breaker, a wire inlet busbar and a wire outlet busbar, and the circuit breaker is arranged in the box body; the wire inlet busbar and the wire outlet busbar are arranged in the box body, are connected with the circuit breaker and are suitable for controlling the connection and disconnection of the wire inlet busbar and the wire outlet busbar through the circuit breaker; wherein in the first direction, the wire inlet busbar and the wire outlet busbar are located at one end of the circuit breaker, the wire inlet busbar and the wire outlet busbar are oppositely arranged in the second direction, extend in the third direction and are in lap joint with the cable in the third direction, and the first direction, the second direction and the third direction are different and form included angles with one another. Therefore, on one hand, the box body can be miniaturized and compactly arranged, the space occupation of the confluence cabinet is reduced, and the energy density of the energy storage system is improved; and on the other hand, the lap joint requirements of more cables can be met, the cable lap joint difficulty is reduced, the cable consumption is reduced, and the system capacity can be improved.

The invention provides a waist and hip assembly and a humanoid robot. The waist and hip assembly comprises a barrel structure, a pitching motor, a supporting piece, a rolling motor and a yawing motor. The cylinder structure is provided with a first wiring channel; the pitching motor is accommodated in the barrel structure; the pitching motor is provided with a first axis inclined relative to the left-right direction and the front-back direction of the humanoid robot. An output shaft of the pitching motor is connected with the supporting piece and drives the supporting piece to rotate around the first axis. The supporting piece is provided with a first space, a second space, a second wiring channel and a third wiring channel, and the first wiring channel, the second wiring channel, the first space, the third wiring channel and the second space are communicated in sequence; the rolling motor is accommodated in the first space; the yaw motor is contained in the second space, and an output shaft of the roll motor is connected with the yaw motor. According to the waist and crotch assembly and the humanoid robot, the wire layout can be simplified, the wires are prevented from being exposed, the wire length is shortened, the wire design cost is reduced, and the wire layout attractiveness is improved.

The invention relates to a rotating shaft assembly, a grounding part and electronic equipment, the rotating shaft assembly comprises a rotating shaft and the grounding part, the grounding part is arranged between the rotating shaft and a rotating shaft back cover in the electronic equipment and is electrically connected with the rotating shaft back cover and the rotating shaft to form a grounding circuit, and the grounding part comprises a voltage limiting element. When the voltage in the grounding circuit is greater than or equal to a first threshold value of the voltage limiting element, the voltage limiting element conducts the grounding circuit; when the voltage in the grounding circuit is smaller than the first threshold value of the voltage limiting element, the voltage limiting element disconnects the grounding circuit. The rotating shaft assembly is simple in structure, easy to manufacture and low in cost, the ESD grounding requirement of the rotating shaft back cover and the daily use requirement of a user can be met at the same time, the service life of a metal appearance part outside the electronic equipment is prolonged, and the use safety of the electronic equipment is improved.

Embodiments of the present application relate to the technical field of batteries, and in particular, to a battery, a power consumption device, a preparation method for the battery, and a manufacturing mold. The battery comprises a frame body, a plurality of battery cells and a binder, the frame body is provided with an accommodating cavity, and the accommodating cavity is provided with an opening in a first direction; the plurality of battery cells are disposed in the accommodating cavity, and the electrode terminals of the battery cells face the opening; the binder is disposed in the accommodating cavity, and the binder is connected to the plurality of battery cells and the frame body. According to the battery provided by the present application, the relative displacement between the battery cells can be prevented or reduced, and the electrical connection stability of the battery is improved.

The utility model discloses an anti-pine needle female seat which comprises a female seat shell, a female needle body is installed on the inner side of the female seat shell, the female needle body is made of high-strength metal materials, the female needle body comprises a female needle inserting end, a female needle connecting end and a fixing rod, and an inserting groove is formed in the top end of the female seat shell. The female needle inserting end is located on the inner side of the inserting groove and used for being matched with a male seat pin, and a hexagonal limiting block is arranged on the surface of the end, close to the female needle inserting end, of the female needle body; through the matching arrangement of the convex ring and the elastic clamping block, the radial limiting of the female pin main body is realized, the loosening of the female pin in the radial direction is effectively prevented, the electrical connection stability of the connector is improved, and through the arrangement of the anti-loosening rubber layer between the female seat shell and the female pin main body, the bonding force between the female pin and the female seat shell is enhanced, and the electrical connection stability of the connector is improved. The female pin is prevented from loosening in the axial direction, and the anti-loosening effect is further improved.

The microswitch is characterized in that a housing is provided with an accommodating cavity, and a first conducting strip, a second conducting strip and a third conducting strip are accommodated in the accommodating cavity; the driving piece is contained in the containing cavity and comprises a pressing part and a fixing part, the pressing part is connected with the fixing part, the pressing part penetrates through the shell and extends to the outside, and the fixing part is provided with a fixing cavity; the reset piece is contained in the containing cavity, abuts against the driving piece and gives reset force to the driving piece; the reed assembly is contained in the fixing cavity, one end of the reed assembly is electrically connected with the first conducting strip, a first clamping groove is formed in the other end of the reed assembly, the second conducting strip and the third conducting strip are both located on the motion trail of the first clamping groove, and the reed assembly is detachably connected with the driving part; the reed assembly is installed in the fixing cavity, the linkage effect between the reed assembly and the driving piece is achieved, the reed assembly and the driving piece are detachably connected, assembling is more convenient and simpler, and therefore the assembling efficiency is improved.

The invention belongs to the technical field of cable installation, and particularly relates to a cable connector which comprises an outer pipe, paired cylinder caps, a holding piece, a tightening cylinder, a spiral ring, a spring and an inner pipe. The cylinder caps are fixed at two ends of the outer tube. The holding piece comprises a ring body, a plurality of pressing arms and rubber pads arranged on the pressing arms. The outer side faces of the pressing arms are wedge-shaped curved surfaces, and the multiple wedge-shaped curved surfaces can be distributed on the same conical surface. And the tightening cylinder is sleeved on the holding piece, and an inner conical surface is formed at the end part of a cylinder cavity of the tightening cylinder. The spiral ring is matched with the ring body and can push the tightening cylinder to move, so that the inner conical surface pushes and presses the pressing arm to be folded in the direction close to the axis of the holding piece. The spring is arranged on the free end side of the ring body and can exert elastic thrust on the enclasping piece. The inner pipe is arranged between the holding pieces, and the two ends of the inner pipe are fixedly connected with the pressing arms on the two holding pieces respectively. And the electric connector is arranged in the tube cavity of the inner tube. According to the invention, the stress condition of the electric connector can be improved, and the connection stability and reliability of the cable at the electric connector can be improved.

The utility model discloses an electric connector, which belongs to the field of electric connectors and comprises a metal shell, a first plastic main body and a first conductive terminal group, the metal shell is arranged on the periphery of the first plastic main body, part of the first plastic main body is exposed out of the metal shell, and the first conductive terminal group is arranged in the first plastic main body. According to the electric connector provided by the utility model, through the arrangement of the metal shell, the strength of the electric connector is improved, and the first plastic main body is prevented from cracking when the electric connector is subjected to external force, vibration, impact and screw locking. And the first plastic main body is exposed, so that crosstalk can be effectively improved, especially far-end crosstalk can be improved, and signal performance can be improved. Therefore, through combination of strength improvement and crosstalk improvement, the quality of the electric connector is greatly improved, and the quality and performance of electric connection are improved.

The utility model discloses an electric connection device, including first sleeve, be equipped with first electrically conductive contact piece in first sleeve, and first electrically conductive contact piece is connected with cable electricity, second sleeve, be equipped with second electrically conductive contact piece in second sleeve, and second electrically conductive contact piece is connected with cable electricity, when first sleeve and second sleeve assembly fixed, first electrically conductive contact piece and second electrically conductive contact piece contact and conduct. The present application can solve the problem of christmas tree wiring disorderly.

This invention discloses an electrostimulation rehabilitation therapy device, including a fixed base with fixing straps on both sides. The fixed base has a mounting ring on each side, and an electrostimulation device is mounted on the mounting ring. The electrostimulation device includes a mounting frame with a housing mounted on it. The housing has a receiving cavity with a slide rail inside. A needle holder is mounted on the slide rail, and the needle holder is driven to move by a driving mechanism. A needle body is mounted on the needle holder. An opening is formed on the bottom surface of the housing, and a guide head is installed at the opening. The guide head has a needle guide hole for the needle body to enter and exit. An electroacupuncture clamp assembly is located inside the housing. This invention first fixes the fixed base to the acupoint, then installs the electrostimulation device. Automatic needle insertion is achieved through the driving mechanism, and the electroacupuncture clamp assembly on both sides is driven by an electromagnet to clamp the needle body. The electroacupuncture device delivers an electrostimulation signal, improving needle insertion accuracy and electrical connection stability.

This utility model discloses a miniaturized ceramic dielectric chip, belonging to the field of capacitor technology, to solve the problem that when the edge of a disc ceramic capacitor contacts the circuit board, stress concentration easily leads to edge breakage, which not only reduces the product yield but may also affect the reliability and service life of the entire circuit system. This utility model uses Y5U ceramic material with a dielectric constant of 8500-9200 as the ceramic dielectric substrate. Its shape is a cube with dimensions of 7×5×1.2mm. The four corners of both the front and back sides are chamfered, and the ends of the vertical edges on all four sides are rounded at the chamfer connections, with an arc length of 0.4mm-0.5mm. Within this arc range, the stress concentration problem during mounting is effectively alleviated, the structural stability of the chip is ensured, and the electric field distribution is optimized.

The present invention discloses a lamp and a sealing ring thereof. The two opposite ends of the lamp are provided with connectors for being nested and plugged with an electrical connector. The sealing ring comprises an annular sealing body and an abutting skirt provided at one end of the sealing body. The abutting skirt is connected to the outer periphery of the sealing body and extends in a direction away from the center of the sealing body. The sealing body is clamped between the side wall of the connector and the side wall of the electrical connector, and the abutting skirt abuts against the end face of the lamp. By clamping the sealing body between the side wall of the connector and the side wall of the electrical connector, the gap between the plug-in connector and the electrical connector can be sealed to prevent impurities from entering the interior of the connector and improve the electrical connection stability between the connector and the electrical connector. In addition, the abutting skirt abutting against the end face of the lamp can facilitate the positioning of the sealing body to prevent the sealing body from sliding relative to the electrical connector, and can also facilitate the installation and removal of the sealing ring.

The present application relates to the technical field of batteries, and in particular to a battery and an electrical device. The battery includes a plurality of battery cells arranged in a certain direction, the battery cell includes an electrode assembly and a shell, the electrode assembly is placed in the shell, and the plurality of battery cells include a first battery cell and a second battery cell, the first battery cell and the second battery cell are configured so that when the number of electrical cycles of the battery is greater than or equal to 100 times, the full charge group margin of the first battery cell is less than 1, and the full charge group margin of the second battery cell is greater than 1; the full charge group margin refers to the ratio of the maximum size of the electrode assembly to the minimum size of the shell along the arrangement direction of the plurality of battery cells when the battery cell is in a fully charged state. In view of the above problems, the battery provided in the embodiment of the present application can reduce the overall external expansion force of the plurality of battery cells, prevent the battery cells from causing extrusion damage to other components of the battery, and improve the electrical connection stability and safety of the battery.

The utility model discloses a current massage instrument which comprises a shell, a power supply assembly is arranged in the shell, and a massage head is embedded in the shell. One electrode of the power supply assembly is electrically connected with the massage head, the other electrode of the power supply assembly is electrically connected with the shell, and the massage head comprises a conductive block electrically connected with the power supply assembly and a contact pin inserted in the conductive block.

The invention discloses a thin film structure for inhibiting warping in a Micro-LED bonding process and a preparation method thereof, and relates to the technical field of display packaging. The thin film structure is characterized in that in the bonding process of a chip and a substrate, a target material thin film is deposited on the back surfaces of a sapphire substrate and a Si substrate; the thermal expansion coefficient of the target material film is between that of sapphire and that of Si. According to the method, warping caused by mismatching of thermal expansion coefficients of sapphire and Si in the flip-chip bonding process can be relieved.

This application relates to the field of battery technology and discloses a cover plate assembly and a battery. The cover plate assembly includes: a cover plate body with terminal mounting holes and a flange structure; a terminal, whose projection on the extending plane of the cover plate body is a unicornuate shape; the flange structure includes an extension portion and a pressing portion; the pressing portion includes a long side section suitable for pressing a straight portion and an arc side section suitable for pressing an arc portion; the width of the pressing portion extending from the extension portion on the long side section is S (in mm); the width of the pressing portion extending from the extension portion on the arc side section is T (in mm), and S > T. The cover plate assembly provided by this application enables the long side section to apply a greater pressing force to the straight portion of the unicornuate terminal after riveting, thereby improving the pressing tightness and connection reliability of the terminal edge, avoiding local deformation of the long side section due to its long length, and improving the deformation resistance of the long side section.

The invention belongs to the technical field of sewage treatment equipment, and particularly relates to domestic sewage treatment and filtration equipment, which comprises a sewage treatment room, a sewage treatment tank and a filter, the filter plate is arranged in the sewage treatment tank; the sewage input pipe is arranged on one side of the sewage treatment tank and is communicated with the interior of the sewage treatment tank; the drainage pipe is arranged at the bottom of the side wall of the sewage treatment tank; the ventilating and deodorizing mechanism is arranged on the side wall of the sewage treatment room and comprises an air outlet pipe, a fan and a deodorizing pipe; the agent adding mechanism is arranged on the sewage input pipe, and the agent adding mechanism comprises an agent box used for storing and conveying agents; wherein the air outlet pipe is communicated with the interior of the sewage treatment room, the fan is connected with the air outlet pipe in series, and the odor removal pipe is arranged at the air outlet end of the fan. Compared with the prior art, the sewage treatment room has the advantages that the working efficiency can be effectively improved, and the odor in the sewage treatment room is reduced.

The utility model provides a battery assembly and an electronic atomization device, the electronic atomization device comprises an atomizer and the battery assembly, and the battery assembly is electrically connected with the atomizer. The battery assembly comprises a battery, a circuit board, an airflow sensor and a first electric connecting piece, the circuit board is electrically connected with the battery, the airflow sensor and the first electric connecting piece are arranged on the circuit board and directly and electrically connected with the circuit board, and the first electric connecting piece is used for being electrically connected with the atomizer. According to the battery assembly, the airflow sensor and the first electric connecting piece are integrated on the circuit board, so that the material cost of the wire and the welding labor cost of the wire are reduced, meanwhile, the stability of electric connection between the airflow sensor and the circuit board and the stability of electric connection between the first electric connecting piece and the circuit board are improved, and in addition, the assembly efficiency of the battery assembly is also improved.

The portable outdoor mobile power supply structure comprises a battery accommodating and expanding assembly and a battery assembly. The battery accommodating and expanding assembly comprises a battery accommodating and expanding box and a protective cover plate. The battery accommodating and expanding box is formed with a battery mounting groove. The protective cover plate is arranged at the groove opening of the battery mounting groove to jointly form a battery mounting cavity. The protective cover plate is detachably connected with the battery accommodating and expanding box. The battery mounting cavity is used for accommodating the limiting battery assembly. The power connection end of the battery assembly is used for electrically connecting with the power connection end of the battery accommodating and expanding box. The portable outdoor mobile power supply structure has good use stability.

This utility model discloses a conductive electrode, a dimming film, and a dimming glass. The conductive electrode includes: a flexible circuit board comprising a first cover layer, a second cover layer, and an intermediate conductive layer sandwiched between the first and second cover layers. The intermediate conductive layer has a conductive input section, a circuit section, and a conductive output section. A conductive bonding structure is also included, wherein the conductive output section is bonded and fixed to the electrode mounting area via the conductive bonding structure. The upper surface of the conductive output section is electrically connected to the electrode mounting area via the conductive bonding structure, and the lower surface of the conductive output section is also electrically connected to the electrode mounting area via the conductive bonding structure, or the lower surface of the conductive output section is bonded and electrically connected to the electrode mounting area. In this utility model, any surface of the conductive output section is conductive. The conductive bonding structure electrically connects the upper surface of the conductive output section to the electrode mounting area, effectively improving the peel resistance of the conductive output section and the conductive electrode, and the stability of the electrical connection between the conductive electrode and the electrode mounting area.

The utility model provides a mount coupling power-up device, which comprises a base, an assembly plate and two pole pieces, the assembly plate is separably arranged on the base, one side of the assembly plate far away from the base is provided with an assembly limiting groove, the assembly limiting groove is used for a mount product to insert, the mount product is provided with a mounting hole for a bolt to pass through, and the two pole pieces are arranged on the mounting hole. The mount product comprises two ribbons, and the two ribbons extend to the two sides of the assembly plate respectively. Specifically, when coupling power-up of a mount product is carried out, the mount product is inserted into the inner side of an assembly limiting groove, at the moment, the mount product abuts against and is electrically connected with the pole pieces on the two sides, coupling power-up is carried out on the mount product through the pole pieces, the situation of overheating damage caused by resistance difference between a probe and the connecting position is improved, meanwhile, larger current can be conducted, and the service life of the mount product is prolonged. The replacement frequency of spare parts is reduced, the production cost is reduced, the working current can be improved, and the coupling power-up stability with a mount product is improved.

The utility model relates to an improved connector comprising a connector housing, a current carrier, an elastic clamping member and a button, the current carrier and the elastic clamping member are mutually cooperated and fixed and are arranged in the connector housing, the button is arranged on the connector housing to cooperatively press the elastic clamping member, and the current carrier comprises an upper half part structure and a lower half part structure. The upper half part structure is provided with a first fixing part, the elastic clamping piece comprises a first structure and a second structure, and the first structure is provided with a first fixed matching part which is matched and fixed with the first fixing part of the upper half part structure of the current carrier; the second structure is configured to be pressed by the button to generate elastic compression deformation and form a clamping gap with the lower half part structure of the current carrier, so that the fixing effect of the current carrier in the connector shell is enhanced through the fixed matching structure, and the fixing effect between the current carrier and the elastic clamping piece is enhanced; and the telecommunication connection stability when the current carrier is connected to an external wire is improved.

The present invention relates to a bearing module, a tray, and a test handler wherein the bearing module comprises: a bearing main body having a receiving groove for receiving an electronic component; the bottom plate part is combined with the bearing main body, and the bottom plate part comprises a bottom plate component used for supporting the bottom surface of the electronic component accommodated in the accommodating groove; and a plurality of electrical connection holes penetrating through the bottom plate part, and the bottom plate part is made of glass.

The utility model discloses a self-connection type photovoltaic junction box and a photovoltaic module, the self-connection type photovoltaic junction box comprises a base, the two sides of the base in the length direction are provided with clamping parts extending upwards, and the base is provided with a bus bar lead-out port; the box cover is provided with a containing cavity with a downward opening; the diode module is arranged in the accommodating cavity, the diode module is provided with a metal plug bush and a wiring terminal, the wiring terminal is used for being connected with a corresponding cable, and one end of the accommodating cavity is provided with a channel for the cable to pass through; the metal connecting piece is arranged on the base, and the metal connecting piece is provided with a connecting groove used for being electrically connected with the bus bar and a metal contact pin used for being corresponding to the metal plug bush; wherein the two clamping parts are used for being connected with the two outer sides of the box cover in the length direction in a buckled mode, and meanwhile the metal inserting pins are inserted into the metal inserting sleeves for electric connection. The photovoltaic connector is simple, convenient and fast to disassemble, can realize self-connection, and can realize stable electric connection without depending on a traditional photovoltaic connector.

The present application belongs to the technical field of vehicle glass, and in particular, relates to a vehicle and a sliding window thereof, comprising a vehicle window glass, a heating module and a window frame mechanism, wherein the window frame mechanism comprises a frame body and two guide rails, wherein the two guide rails are respectively arranged on both sides of the frame body, the vehicle window glass comprises a fixed glass and a sliding glass, wherein the fixed glass is arranged in the frame body and has a window, and the sliding glass is slidingly arranged on the two guide rails, and the heating module comprises a first heating circuit, a second heating circuit and an electrical contact assembly, wherein the electrical contact assembly is in electrical contact with the second heating circuit, and the first heating circuit is electrically connected to the electrical contact assembly through a wire. When the sliding glass slides, as the wire is extended and shortened, the first heating circuit and the second heating circuit can always maintain electrical connection, thereby eliminating the connection mode of the electrical contact plug, improving the electrical connection stability of the first heating circuit and the second heating circuit, and thus ensuring the stable operation of the heating module of the sliding window during long-term use.

The invention discloses a vehicle battery pack connecting device, and belongs to the technical field of battery pack charging for battery swapping, the vehicle battery pack connecting device comprises a base, an electric connector and a trigger piece, when a battery pack is placed on the trigger piece, the trigger piece can be displaced under the pressure effect of the battery pack, and the electric connector is connected with the base; the electric connector is driven by the trigger piece to move downwards and move in the horizontal direction at the same time so that the electric connector can get close to the battery pack and be electrically connected with the battery pack. In the process that the battery pack is placed on the triggering piece till the battery pack is electrically connected with the electric connector, the placing stability of the battery pack on the triggering piece is high, and meanwhile due to the fact that the movement track of the electric connector is constant, the battery pack can be stably placed on the triggering piece. The electric connector certainly moves along the fixed movement track until the electric connector is electrically connected with the battery pack, the phenomenon of connection dislocation caused by movement deviation of the battery pack does not exist in the electric connection process of the battery pack, and the electric connection efficiency and the electric connection stability of the battery pack connecting device are improved.