90results about How to "Achieve electrical connection" patented technology

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.

This invention belongs to the field of headphone technology, and specifically relates to a quick-release structure for a headphone battery with elastic contact. It includes: a sound-generating unit with a mounting groove containing a receiver, and at least two inductive elements; and a battery unit with a conductive plate located inside the battery unit. By placing the conductive plate inside the battery unit, leakage caused by contact between the battery electrodes and the external environment is prevented. When the battery unit needs to be placed on the sound-generating unit, the receiver contacts the conductive plate, thereby establishing circuit continuity. This allows for easy assembly and disassembly of the battery unit and the headphone's sound-generating unit. During assembly, simply placing the battery unit on the sound-generating unit allows for automatic alignment and circuit connection through physical contact, eliminating the need for soldering, ribbon cables, or connectors, significantly reducing the difficulty and cost of automated assembly.

The invention relates to the field of disc type motors, in particular to a disc type direct drive motor. Comprising two sets of symmetrically arranged motor housings, and rotating shafts are arranged in the two sets of motor housings; rotor mechanisms are arranged in the two sets of motor housings. And the rotor mechanism is sleeved on the outer wall of the rotating shaft. External air is sucked in at a high speed through the multiple sets of air guide blades distributed in the air guide groove in the annular array mode, and then airflow is guided into the position between the outer wall of the separation ring and the inner wall of the shell at a high speed through the multiple sets of fourth air inlet through grooves in the two sides; high-speed airflow is guided into a specific channel in the stator mechanism through a plurality of groups of air guide through grooves I for efficient heat dissipation, and then the airflow is exhausted through a plurality of groups of exhaust holes I, so that the heat dissipation effect of the stator mechanism during working is improved; and the linear speed of the edge of the rotor is utilized, and meanwhile, a heat dissipation mechanism which consumes extra power is prevented from being added, so that the heat loss of the disc type direct drive motor is reduced, and meanwhile, the energy-saving effect is achieved.

The utility model discloses a cockpit connector, including the first connector of embedding in cockpit panel, have first interface, first interface conductive connection vehicle circuit system to and with the second connector of first connector detachable connection, second connector has with portable equipment conductive connection's second interface, first connector still includes the guide component of setting in the outside of first interface, and guide component has the plug -in channel, and when second connector partial plug -in is inserted to the plug -in channel, and second interface and first interface plug -in cooperation to realize conductive connection, the utility model discloses between guide component and second connector is provided with the first limiting component of the insertion of second connector to the limit, to guarantee second connector and plug -in to first connector in predetermined attitude, and it is convenient for subsequent quick electric connection portable equipment.

The utility model relates to pressure pad technical field especially relates to a wiring terminal, wire connecting structure and pressure pad. Wiring terminal includes first wiring end, second wiring end and connecting portion, and connecting portion connects first wiring end and second wiring end: first wiring end is equipped with conductive line crimping portion, and conductive line crimping portion is used for crimping the conductive line on the conductive layer of woven cloth, second wiring end is equipped with wire crimping portion, and wire crimping portion is used for crimping the wire. The reliability of the electric connection between the conductive line crimping portion and the conductive line is improved by crimping the conductive line crimping portion on the conductive layer of woven cloth to realize the connection with the conductive layer of woven cloth, and the reliability of the electric connection between the wiring terminal and the conductive line is further improved. The insulation layer coated on the wiring terminal and the wire is stably connected by crimping the insulation skin crimping portion, and the wire is kept in position. The reliability of the electric connection between the wire crimping portion and the wire is ensured by crimping the wire with the wire crimping portion, and the problem of the easy failure of the pressure pad is improved.

The utility model relates to the technical field of moth trapping equipment, concretely to a moth trapping device for pear tree disease and insect prevention and cure, including pear tree disease and insect prevention and cure moth lamp box, and the moth lamp box is hollow cuboid structure. The utility model discloses the moth lamp box for pear tree disease and insect prevention and cure as the main body structure is set up, and four lateral surface sliding installations replaceable side seat, and the cross section of replaceable side seat and the installation sliding slot of the side of moth lamp box is all convex character shape and both sliding fit, and the replaceable side seat is installed and disassembled conveniently, the vertical setting moth lamp tube of inside center installation of moth lamp box, the outer wall center of replaceable side seat is embedded electric net, and the side away from electric net is transparent board, and the transparent board can prevent pests from entering the moth lamp box, and protect the inside moth lamp tube, and the moth lamp tube emits light and attracts pests, and the pests contact electric net and are electrocuted, realize disease and insect prevention and cure, and the bottom of moth lamp box installs the rechargeable battery, and provides electric power for the moth lamp tube and electric net.

The utility model discloses a socket structure used for a guide rail socket, comprising a housing, a pedestal, a plugging part and three conductive parts, the housing covers the pedestal and is in rotation cooperation with the pedestal, the housing is provided with a two-plug jack and a three-plug jack used for the insertion of the socket, the plugging part is used for being inserted into a guide rail module, and the number of the conductive parts is three. The three conductive parts are used for being in contact connection with conductive strips corresponding to the guide rail module, and clamping parts are arranged on the conductive parts and used for being clamped on the conductive strips corresponding to the guide rail module. According to the utility model, through the conductive parts with the clamping parts, when the socket module is inserted into the guide rail module, the first clamping part of the zero line connecting pin and the second clamping part of the live line connecting pin are clamped on the corresponding conductive strips so as to ensure the stability of connection, and the conductive silver points are arranged in the first clamping part and the second clamping part, so that the stability of the socket module is improved. Electric connection can be realized by vertically contacting the conductive strips, and the effect of electric connection with the conductive strips is enhanced.

The utility model provides a kind of wiring structure of motor and corresponding motor, wiring structure is arranged at the installation port of the side of shell, the side of the first coil assembly in shell is provided with multiple binding posts, the wiring structure of motor includes terminal housing and fixed housing.Fixed housing is connected on installation port, terminal housing is detachably connected in the installation slot of fixed housing, terminal housing is provided with terminal hole.The wiring post of the wiring structure of motor of the utility model extends into terminal hole, so that external plug can be inserted with terminal housing to realize the electrical connection of motor, and the electrical connection is not easy to damage and fail, the external plug can have different length of lead, and it is convenient to flexibly layout in different use environment.At the same time, terminal housing is detachably connected on fixed housing, so that different models of terminal housing can be replaced to be connected with different models of external plug, and the plug-in compatibility is high, and the terminal housing is also convenient to replace after damage.

The invention discloses a back contact battery and a preparation method thereof, and a photovoltaic module. The back contact battery comprises a battery body, wherein the battery body is provided with a first surface and a second surface which are oppositely arranged; the first current collection electrodes and the second current collection electrodes are arranged on the first surface, the first current collection electrodes and the second current collection electrodes are alternately arranged at intervals in the first direction and extend in the second direction, first insulation parts are arranged on the first current collection electrodes, and second insulation parts are arranged on the second current collection electrodes; the first insulating part and the second insulating part are arranged at an interval in the second direction; the first connecting conductor is arranged on the second insulating part, extends along the first direction and is electrically connected with the plurality of first collector electrodes; the first electric connection part is arranged between the first insulation part and the second insulation part and is electrically connected with the first collector electrode. By adopting the electrode structure, the design of the opening structure in the screen printing plate is facilitated, the processing steps can be simplified, and the preparation efficiency of the electrode is improved.

The utility model belongs to the field of switch cabinets, and particularly relates to a drawer unit detection device. Comprising a working platform; the lap joint plate is arranged corresponding to the working platform, a butt joint interface is configured on the lap joint plate, and the butt joint interface is used for being in butt joint with a drawer unit; the detection circuit is electrically connected with the butt joint interface, the detection circuit comprises a power supply module and a detection instrument, and the butt joint interface is in butt joint with the drawer unit, so that the drawer unit is connected with the detection circuit. The utility model provides a detection device for a drawer unit, and aims to solve the problem of low efficiency of drawer unit detection in the prior art.

An electrical connection terminal and its assembly are disclosed. The electrical connection terminal includes a crimping portion and a contact portion extending forward from the crimping portion. The crimping portion includes a substrate and a wire-pressing portion extending from one side of the substrate in the width direction. The wire-pressing portion is wound around a cable core wire outside the width range of the substrate. In this invention, the electrical connection terminal achieves electrical connection between the cable and the wire core wire by winding the wire-pressing portion around the cable core wire, eliminating the need for soldering.

The application discloses a portable multifunctional energy storage and power supply equipment which is expandable and detachable, and belongs to the field of new energy storage and application. The equipment comprises more than one energy storage and power supply unit, and adjacent energy storage and power supply units are arranged in a stacked mode and are electrically connected with each other. The energy storage unit comprises a unit main body, the unit main body comprises more than one module expansion bin, a functional module is arranged in the module expansion bin, the unit main body is provided with a unit control panel at a position corresponding to the module expansion bin, a standard interface terminal is arranged on the unit control panel, a module control panel is arranged in the functional module, a standard interface which is matched with the standard interface terminal is arranged on the module control panel, and the standard interface terminal is electrically connected with the standard interface. The energy storage and power supply equipment has expandability, can integrate different functional modules through a unified standard interface, greatly widens the application range of energy storage products, expands application scenarios, and makes the energy storage and power supply equipment more portable.

The application relates to the solid state disk packaging technical field, in particular to a solid state disk packaging structure combined with an electromagnetic shielding function, which comprises a packaging shell, an internal shielding component and an interface shielding device. The inner wall of the packaging shell is provided with a conductive coating, the internal shielding component forms a shielding network with a shielding partition plate and a conductive elastic piece, and the interface shielding device adopts a shielding cover, a conductive adhesive tape and a signal filter to realize double shielding protection. Through the design of the conductive cloth layer, the conductive elastic piece and the conductive adhesive tape, external electromagnetic interference is effectively blocked, internal component layout changes are adapted, meanwhile, the signal transmission stability and the heat dissipation performance are enhanced, and the equipment operation reliability is improved.

The utility model discloses an automatic testing device for a magnetic sensor, and belongs to the field of sensor detection. An automatic testing device for a magnetic sensor comprises a carrier plate, a positioning rod, clamping blocks, a plug and a telescopic rod, a baffle is fixedly connected to one side of the carrier plate, the clamping blocks are symmetrically arranged on the surface of the carrier plate in a sliding mode, the positioning rod is arranged on the surface of the carrier plate in a sliding mode, and the moving direction of the clamping blocks is perpendicular to the moving direction of the positioning rod; the two sides of the positioning rod are rotationally connected with connecting rods in a symmetrical structure, the included angle between the connecting rods and the positioning rod is an acute angle, the connecting rods are rotationally connected with the clamping blocks, the telescopic rod is fixedly installed on the carrying plate, and the plug is vertically connected to the upper portion of the positioning rod in a sliding mode. According to the scheme, the Hall sensor can be automatically fixed, the device is moved into the shielding box through the carrier plate, the sensitivity of the Hall sensor is detected by utilizing magnetic fields with different intensities generated by the magnetic field generator, and the detection efficiency of the Hall sensor can be effectively improved.

A semiconductor structure and its formation method are disclosed. The formation method includes: providing a substrate; forming a pattern memory layer on the substrate, the pattern memory layer having a first trench, a second trench, and a third trench with parallel extending directions, the first trench, the second trench, and the third trench being formed using different photomasks; forming a core material layer, the core material layer filling the first trench, the second trench, and the third trench; patterning the core material layer to form a core layer, the core layer having isolation openings; filling the isolation openings to form an isolation layer, the top of the isolation layer being flush with the top of the core layer; removing the core layer to form a fourth trench, the fourth trench corresponding to a metal interconnect layer. Since the cutting of multiple first trenches, second trenches, and third trenches can be completed in the same process step, the method can enable the processing of smaller patterns in subsequent processing steps, even when the pattern size is close to the limits of device parameters.

The utility model belongs to the technical field of automobile parts, especially relates to a quick plug -in connector and car music headrest, including headrest rod, the lower end of headrest rod is installed with the female end of connector, the lower end of headrest rod is equipped with two square holes symmetrically, the female end of connector is inserted with the male end of connector, the elastic sheet of male end of connector both sides is clamped in two square holes respectively, the male end of connector slides in the shell, the bottom of shell is fixed with bottom shell subassembly, the shell is installed in the car seat backrest, the upper end of headrest rod is connected with car headrest, realizes the plug -in fixed of car headrest through headrest rod in the shell, the electrical connection between the female end of connector and the male end of connector, realizes the electrification of functional device in car headrest, the female end of connector extrudes the lower end of male end of connector and leans on bottom shell subassembly, guarantees the female end of connector and the male end of connector and plug -in in place, the elastic sheet of male end of connector both sides is clamped in two square holes respectively, guarantees the stability of the female end of connector and the male end of connector connection.

The utility model discloses a water pump assembly which is installed on a scrubbing device, the scrubbing device is provided with a driving motor, and the water pump assembly comprises a water pump, a shell frame and an end cover assembly. A water pump is installed on the rear portion of the shell frame, a wiring cavity is formed in the front portion of the shell frame and used for containing one end of an elastic needle set electrically connected with the water pump and the driving motor, the other end of the elastic needle set is electrically connected with a power source assembly of the scrubbing device, and the power source assembly provides power for the water pump and the driving motor. The end cover assembly comprises an end cover covering the front portion of the shell frame and an elastic needle set installed on the end cover, and the other end of the elastic needle set extends out of the wiring cavity to elastically abut against the output end of the power supply assembly. The water pump is electrically connected with the vibrating needle group; the scrubbing device comprises an upper shell and a bottom shell, the water pump assembly is sealed in the scrubbing device through the upper shell and the bottom shell, and when the power supply assembly is installed on the scrubbing device, the power supply assembly is electrically connected with the water pump assembly; the shell frame and the end cover assembly enable the water pump to take electricity outwards more conveniently and enable the water pump to be connected with an external pipeline more conveniently.

The utility model provides an active optical device for optical signal detection, which comprises a shell, an adapter arranged on one side of the shell, a receiving detector arranged on the right side of the shell and an emitting laser arranged on the other side of the shell, the emitting laser is provided with an adjusting assembly used for adjusting the angle of the emitting laser and a limiting assembly used for fixing the adjusting assembly. The adjusting assembly comprises a connecting plate arranged on one side of the emitting laser, a movable rod arranged on one side of the front end of the connecting plate, two fixing frames arranged on one side of the connecting plate, a connecting rod arranged on the fixing frames and an adjusting plate arranged at the other end of the connecting rod. The movable rod arranged on the shell can enable the emitting laser to rotate to adjust the angle between the emitting laser and the receiving detector, adjustment is carried out according to specific installation requirements, meanwhile, the emitting laser is fixed through matched use of the screw and the nut, and the situation that an optical device needs to be bent for transmission when detecting optical signals is avoided; and the loss rate of the light source signal is reduced.

The utility model relates to the technical field of lithium ion batteries, in particular to a single battery and electric equipment. Each single battery comprises a battery cover plate, a pole group and a pole lug; the battery cover plate comprises a pole and a connecting piece; the battery cover plate has a length direction, and the connecting piece comprises a pole connecting part and a tab connecting part which are connected with each other in the length direction; the pole connecting part is provided with a welding hole for welding the pole, and the tab connecting part comprises a tab welding surface opposite to the side where the pole group is located; the pole is welded with the hole wall of the welding hole of the pole connecting part, and the tab is bent towards the tab welding surface and is welded with the tab welding surface. According to the single battery and the electric equipment, the problems that when the tabs of the existing lithium ion battery are connected with the output electrode of the battery cover plate, the bent tabs occupy a relatively large space, and the space utilization rate is relatively low are solved.

The utility model relates to a cooling fan with a rotating speed display function. The cooling fan comprises a fan support, a fixed module and a movable module. The fixed module comprises a stator connected with the fan support, a plurality of conductive needles arranged on the stator in a penetrating mode, a motor control panel located at the bottom end of the stator, a display control panel located at the top end of the stator and a display screen installed on the display control panel. The movable module comprises a rotor arranged on the peripheral side of the stator in a sleeving mode and fan blades connected with the rotor. A mounting groove for accommodating the rotor is formed in the axis of the fan blade; a light-transmitting part is arranged at the top of the axis of the fan blade and located above the display screen. The display screen and the display control panel are integrated on the fixed module of the motor, the display control panel is installed, fixed and electrically connected through the conductive needle, the display screen is hidden in the axis of the fan blades, the requirement of a user for independent display of the rotating speed of the cooling fan is met, the structure is simple, occupied space is small, and cost is low. And the wiring difficulty in the electronic equipment is not increased.

The utility model discloses operation monitoring equipment for a wind generating set, which relates to the technical field of detection equipment and comprises a vertical shaft wind generating set, the vertical shaft wind generating set comprises a blade support and a blade shaft rod assembled on the blade support, the blade support comprises mounting seats which are distributed in parallel along the vertical direction, and ports of the mounting seats are distributed adjacently. A rotating part fixedly connected with one end of the blade shaft rod is rotationally arranged in the mounting seat, and a convex part is fixedly arranged on the rotating part; the mounting seat is in threaded connection with a sealing cover which is inserted into the blade shaft rod, a shifting block is rotationally arranged on the inner side surface of the sealing cover, and the shifting block is matched with the lug boss in a blocking and detaching manner; the side faces of the adjacent sides of the shifting block and the sealing cover are each provided with an arch-shaped elastic metal reed. Electric pulse signals are generated through mechanical triggering so as to monitor the rotating speed of the blade.

The utility model discloses a connector, and relates to the field of electrical connection, the connector comprises a connector main body, one end of the connector main body is provided with a joint part, and the other end of the connector main body is provided with a wire clamping seat; the plurality of metal terminals are arranged in the connector main body side by side at intervals, the plurality of metal terminals form a contact elastic sheet in the joint part, and the plurality of metal terminals form a stripping-free wire clamping head in the wire clamping seat; and the clamping cover is buckled on the wire clamping seat, and the clamping cover is used for preventing the plurality of metal terminals from being separated from the connector main body. The stripping-free wire clamping head is arranged, when the wire is connected, the wire is directly clamped into the stripping-free wire clamping head in the wire clamping seat, the clamping cover is buckled, an insulating layer of the wire does not need to be stripped, the operation is simple, and the use is convenient.

This utility model discloses a telescopic adapter and an extension plate made therefrom. The adapter includes a telescopic plug with pins on its rear side wall, and an adapter box. The telescopic plug and the adapter box are slidably connected, with the sliding direction between them facing the insertion / removal direction of the pins. The adapter box has an adapter terminal or interface fixedly connected thereto, which is electrically connected to the pins via wiring from the adapter box and the telescopic plug. The adapter terminal includes a protruding conductive plug. This utility model has the advantages of novel structure, allowing for separate disassembly, and the ability to easily replace or stack the extension plate body according to usage requirements.

The utility model provides a battery monomer and a battery pack, and relates to the technical field of batteries. The single battery comprises a shell with a containing cavity, a cover plate connected with the shell to seal the containing cavity, a pole penetrating through the cover plate, and an electrode assembly arranged in the containing cavity. The electrode assembly comprises an electrode body and a tab which are connected with each other, and a bent part of the tab is located on one side, close to the cover plate, of the electrode body and connected with one side, away from the electrode body, of the first pole part of the pole. According to the battery monomer provided by the invention, through the arrangement of the first pole part, the tab can be assisted to be bent, and the bent part of the tab can be restrained, so that the risk that the bent part is inserted into the electrode body is reduced, and the safety of the battery monomer is improved.

The application provides a display substrate and a manufacturing method and a display device. The display substrate comprises a back plate, a front body layer, and a display chip. The back plate is provided with a driving circuit. The front body layer is arranged on the back plate and comprises a conductor unit, a void and a front body. The conductor unit and the void are arranged in the front body. The display chip is arranged on the front body layer. Electrodes of the display chip are electrically connected to corresponding pads on the driving circuit through the conductor units. The application can improve the short circuit or open circuit phenomenon of the display chip caused by the warping of the transfer substrate.

The utility model belongs to the technical field of batteries, and discloses a cover plate assembly and a battery, the cover plate assembly is connected with a battery cell, the cover plate assembly comprises a cover plate body, a pole, a conductive block, a temperature control elastic sheet and a refrigeration sheet, and the pole is arranged on the cover plate body; the conductive block is connected with one end, deviating from the cell, of the pole; the temperature control elastic piece is arranged between the cover plate body and one end, facing the battery cell, of the pole, the temperature control elastic piece has a deformation state and a reset state, and when the temperature control elastic piece is in the deformation state, the temperature control elastic piece is connected with the cover plate body and the pole, so that the cover plate body is electrically connected with the pole; the refrigeration sheet is connected with the conductive block. Therefore, when the internal temperature of the battery abnormally rises, the temperature control elastic sheet can be switched from the reset state to the deformation state, so that the cover plate body is electrically connected with the pole through the temperature control elastic sheet to realize short-circuit protection, the temperature control elastic sheet can repeatedly provide protection for the battery, and the refrigeration sheet can timely lead out heat in the battery; and the safety and the reliability of the battery are improved.

The application provides a switch assembly, and relates to the technical field of low-voltage electrical apparatuses. The switch assembly comprises a switch body and a power conversion module. The switch body comprises a first shell, and the power conversion module is installed in the first shell. The power conversion module comprises a second shell, a first circuit board and a second circuit board. The second shell is provided with a mounting cavity. The first circuit board is fixedly installed in the mounting cavity. The second circuit board is fixedly installed in the mounting cavity. The second circuit board is arranged in a spaced-apart manner from the first circuit board, and the second circuit board is electrically connected to the first circuit board. The second circuit board is arranged closer to the bottom wall of the second shell than the first circuit board. In the direction from the first circuit board to the second circuit board, the projection of the first circuit board substantially coincides with the projection of the second circuit board. According to the switch assembly provided by the application, the area occupied by the power conversion module is small, the space utilization rate inside the first shell is improved, and the miniaturization development of the switch assembly is facilitated.

The utility model relates to intelligent glasses for picking goods in a bin and an intelligent glasses storage cabinet, the intelligent glasses for picking goods in the bin comprise a glasses frame, an optical machine, lenses and a camera, the glasses frame comprises a glasses frame and glasses legs, and the glasses frame comprises two lens mounting parts and a connecting part connected between the two lens mounting parts; the light machines are installed at the ends, close to the glasses frame, of the glasses legs and located on the inner sides of the glasses legs, the light-emitting sides of the light machines face the lenses, the light machines are used for emitting light forming a picking guidance image, the lenses are installed on the lens installation parts, and each lens is provided with a waveguide element which is provided with a coupling-in area and a coupling-out area, the coupling-in area is used for receiving the light emitted by the light machines, and the coupling-out area is used for receiving the light emitted by the light machines. The coupling-out area is used for guiding out light transmitted in the waveguide element to the eyes of a user, and the camera is installed on the connecting part and used for collecting image information of goods picked by the user in the bin. A user can see the picking guidance image and the real scene in the warehouse through the intelligent glasses for picking the goods in the warehouse, and the goods are picked according to the picking guidance image.

The utility model discloses a kind of test devices for detecting current, comprising: display and main control module installed in the upper lining plate of cabinet in turn along the first direction and installed in the middle lining plate of cabinet, main control module includes main control module shell structure, first FPGA board, three first hall sensors and first outgoing line connector.Through three first hall sensors, the current signal of the first to-be-detected current device in cabinet is collected, and is transmitted to first FPGA board, and first FPGA board transmits first current signal to display through first outgoing line connector and displays, so as to realize the current detection of the first to-be-detected current device, and only including the component related to current detection in the utility model, so that the test device for detecting current provided by the utility model embodiment is smaller in size, can be installed in the limited space scattered in cabinet, realize the function of the current detection of the device inside large integrated cabinet.

The invention relates to a motor vehicle traction battery assembly (10) having a plurality of battery modules (101-106) arranged in a vehicle floor in a single horizontal plane (XY), an electrical battery management system and a high-voltage busbar (20) which electrically connects all battery modules (101-106) and the battery management system to one another, wherein the battery management system is for monitoring all battery modules (101-106) and has at least one contactor as a functional component (36, 37, 38, 39) and a temperature monitoring device and / or a voltage monitoring device for each battery module (101-106). The battery management system is composed of at least two battery management sub-modules (30, 31) which each have a part of the whole of all functional components (36, 37, 38) and are arranged remote from one another.