Battery device and electric equipment

Abstract

The embodiment of the utility model provides a battery device and electric equipment, and the battery device comprises a box body, at least one battery monomer assembly and a connector assembly. The at least one battery cell assembly comprises a first output pole and a second output pole; the connector assembly is arranged in the box body, the connector assembly comprises a first plug, a second plug, a first socket and a second socket, the first socket is electrically connected with the first output electrode, the second socket is electrically connected with the second output electrode, the first plug is inserted into the first socket, the second plug is inserted into the second socket, and the first plug and the first socket are configured to be connected with the first output electrode and the second output electrode. When the head of the first plug faces any one of the at least two directions, the first plug is installed on the first socket, the at least two directions intersect with the first direction, and the first direction is the direction in which the first plug is inserted into the first socket. The applicability of the battery device can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, and more particularly, to a battery device and an electric device. BACKGROUND

[0002] Battery cells are widely used in electronic devices, such as mobile phones, notebook computers, electric vehicles, electric cars, electric planes, electric ships, electric toy cars, electric toy ships, electric toy planes, electric tools, and the like.

[0003] In the development of battery technology, how to improve the applicability of the battery device is a research direction in the battery technology. CONTENT OF THE INVENTION

[0004] The present application provides a battery device and an electric device, which can improve the applicability of the battery device.

[0005] The present application provides a battery device, which comprises a box body, at least one battery cell assembly, and a connector assembly. The box body has a containing space; the at least one battery cell assembly is located in the containing space, and comprises a first output pole and a second output pole, which are used to output the current or sampling signal of the at least one battery cell assembly; the connector assembly is arranged on the box body, and comprises a first plug, a second plug, a first socket, and a second socket. The first socket is electrically connected to the first output pole, the second socket is electrically connected to the second output pole, the first plug is plugged into the first socket, and the second plug is plugged into the second socket. The first plug and the first socket are configured such that, in a state in which the head of the first plug is directed in any one of at least two directions, the first plug is mounted in the first socket. The at least two directions are both intersected with a first direction, and the first direction is the direction in which the first plug is inserted into the first socket.

[0006] In the above technical solution, the battery device of the present application is configured such that, in a state in which the head of the first plug is directed in any one of at least two directions, the first plug is mounted in the first socket. In this way, the first plug can be plugged into the first socket in different directions, the wiring mode of the first plug is more flexible, different use requirements can be met, and the applicability of the battery device is improved.

[0007] In some embodiments, the at least two directions include a second direction and a third direction, and the included angle between the second direction and the third direction is 180°, 90°, 60°, or 45°.

[0008] In the above technical solution, these angles are commonly used and relatively easy to manufacture.

[0009] In some embodiments, the first plug comprises a first electrical connecting part and a first limiting part, the first socket comprises a second electrical connecting part and a second limiting part, the first plug and the first socket are connected by the first electrical connecting part and the second electrical connecting part, and the first limiting part and the second limiting part are connected and limit the movement of the first plug relative to the first socket.

[0010] In the above technical solution, the first limiting part and the second limiting part are arranged to limit the first plug and the first socket, so as to improve the accuracy of the positions of the first electrical connecting part and the second electrical connecting part, thereby improving the reliability of the electrical connection.

[0011] In some embodiments, the first limiting part comprises a plurality of first mounting holes, the second limiting part comprises a plurality of second mounting holes, the plurality of first mounting holes are arranged opposite to the plurality of second mounting holes in the first direction one by one, and the connector assembly further comprises a locking structure, at least part of the first mounting holes and the second mounting holes opposite thereto are locked by the locking structure.

[0012] In the above technical solution, the first limiting part is arranged to comprise a plurality of first mounting holes, the second limiting part is arranged to comprise a plurality of second mounting holes, and the locking structure fixes the first plug and the first socket by penetrating the two, which is convenient and fast, and is convenient for disassembly.

[0013] In some embodiments, the at least two directions include a second direction and a third direction, the second direction is perpendicular to the third direction, the projection shape of the plurality of first mounting holes in the same projection plane perpendicular to the first direction is a four-fold symmetric figure, and the projection shape of the plurality of second mounting holes in the same projection plane perpendicular to the first direction is a four-fold symmetric figure.

[0014] In the above technical solution, the first plug and the first socket can be installed in four directions, the four directions are the second direction, the direction opposite to the second direction, the third direction, and the direction opposite to the third direction, thereby further improving the applicability of the connector assembly.

[0015] In some embodiments, the first limiting part comprises a plurality of first protrusions and a mounting circumferential wall surrounding the first electrical connecting part, the plurality of first protrusions are arranged at intervals along the circumference of the first electrical connecting part, the plurality of first protrusions are arranged on the side of the mounting circumferential wall facing the first electrical connecting part, the plurality of first protrusions and the mounting circumferential wall form a plurality of first grooves, the second limiting part comprises a plurality of second protrusions surrounding the second electrical connecting part, in the state that the head of the first plug faces any direction of the at least two directions, the second protrusions are inserted and matched with the first grooves, and the number of the first grooves into which the second protrusions are inserted is at least two.

[0016] In the technical solution, the first recess and the second protrusion are in plug-in cooperation, which can limit the first plug and the first socket in the direction perpendicular to the first direction, has good limiting effect, and is convenient to plug and unplug.

[0017] In some embodiments, the first recesses into which the second protrusion is plugged are distributed on opposite sides of the first electrical connection part.

[0018] In the technical solution, the second protrusion and the first recess can form good limiting effect in the two directions opposite to the first electrical connection part, thereby improving the accuracy of the positions of the first electrical connection part and the second electrical connection part and improving the reliability of the electrical connection of the first electrical connection part and the second electrical connection part.

[0019] In some embodiments, the first limiting part includes a plurality of third protrusions surrounding the first electrical connection part, the second limiting part includes a limiting peripheral wall surrounding the second electrical connection part and a plurality of fourth protrusions, the plurality of fourth protrusions are arranged at intervals along the circumference of the second electrical connection part, the plurality of fourth protrusions are arranged on the side of the limiting peripheral wall facing the second electrical connection part, the plurality of fourth protrusions and the limiting peripheral wall form a plurality of second recesses, in the state that the head of the first plug faces any direction of the at least two directions, the second recesses are in plug-in cooperation with the third protrusions, and the number of the second recesses into which the third protrusions are plugged is at least two.

[0020] In the technical solution, the second recess and the third protrusion are in plug-in cooperation, which can limit the first plug and the first socket in the direction perpendicular to the first direction, has good limiting effect, and is convenient to plug and unplug.

[0021] In some embodiments, one of the first electrical connection part and the second electrical connection part includes a threaded rod, and the other includes a threaded hole, and the threaded rod is threadedly connected in the threaded hole.

[0022] In the technical solution, the first plug and the first socket are electrically connected in the form of threads, which can make the two parts tightly contact and improve the reliability of the electrical connection of the two parts.

[0023] In some embodiments, the second plug includes a third electrical connection part and a third limiting part, the second socket includes a fourth electrical connection part and a fourth limiting part, the second plug and the second socket are plugged through the third electrical connection part and the fourth electrical connection part, the third limiting part and the fourth limiting part are connected and limit the movement of the second plug relative to the second socket, and the second plug and the second socket are configured such that, in the state that the head of the second plug faces any direction of the at least two directions, the third electrical connection part and the fourth electrical connection part are both plugged, and the third limiting part and the fourth limiting part are both connected.

[0024] In the technical scheme, the second plug can be inserted into the second socket in different directions, the wiring mode of the second plug is more flexible, and the applicability of the battery device is further improved.

[0025] In some embodiments, the first output pole and the second output pole are used for outputting sampling signals of the at least one battery monomer assembly, and the sampling signals include voltage signals or temperature signals.

[0026] In the technical scheme, the connector assembly is suitable for the connection of the sampled low-voltage line, and the use range of the battery device is improved.

[0027] In some embodiments, the connector assembly further includes a base, and the first socket and the second socket are fixed to the base and connected to the box through the base.

[0028] In the technical scheme, the first socket and the second socket are integrated through the base, and the installation of the connector assembly and the box is facilitated.

[0029] In some embodiments, the connector assembly further includes a switch, the switch is arranged on the base and located between the first socket and the second socket, and the switch is used for controlling the on-off of the current output circuit or the sampling signal output circuit of the at least one battery monomer assembly.

[0030] In the technical scheme, the switch is arranged, the on-off of the circuit is facilitated, and the convenience of using the connector assembly is improved.

[0031] In some embodiments, the base includes a mounting plate body, the first socket, the second socket and the switch are arranged on the mounting plate body, the mounting plate body is an injection molding structure and is mounted on the box, the mounting plate body includes a first edge, a transition edge and a second edge connected in sequence, the first edge and the second edge are arranged at an angle, and the first edge and the second edge are respectively arranged at an obtuse angle with the transition edge and are connected in a smooth transition.

[0032] In the technical scheme, the first edge and the second edge are connected through the transition edge, the transition edge arranged at an obtuse angle with the first edge and the second edge is relatively inward in position, so that the mounting plate body occupies a smaller space, reduces the interference with other components, and also reduces the generation of burrs in the manufacturing process of the injection molding structure, and improves the appearance quality of the product.

[0033] In some embodiments, the switch comprises a first portion, a second portion and a third portion arranged in sequence, the first portion and the third portion each comprise a plurality of recesses, the openings of the recesses are arranged away from the base, the sidewalls of the plurality of recesses comprise a plurality of reinforcing ribs, and at least part of the reinforcing ribs are arranged in intersection; the protruding height of at least part of the first portion relative to the base gradually decreases in the direction of the first portion of the second portion, and / or the protruding height of at least part of the third portion relative to the base gradually decreases in the direction of the third portion of the second portion.

[0034] In the above technical solution, the recesses can increase the heat dissipation area of the switch and improve the heat dissipation effect of the switch. Moreover, the protruding height of the first portion relative to the base gradually decreases in the direction of the first portion of the second portion, which not only reduces the space occupied by the first portion, but also facilitates the grasping of the first portion. The protruding height of the second portion relative to the base gradually decreases in the direction of the third portion of the second portion, which not only reduces the space occupied by the second portion, but also facilitates the grasping of the second portion.

[0035] In some embodiments, the base is provided with a third mounting hole and a sink that is in communication with the third mounting hole, the sink is located on the side of the third mounting hole away from the cabinet, and the connector assembly comprises a locking assembly that locks the base to the cabinet, the locking assembly has an annular protruding portion and a sealing skirt surrounding the annular protruding portion, the annular protruding portion abuts against the bottom surface of the sink, and the sealing skirt abuts against the sidewall of the sink.

[0036] In the above technical solution, the sink is provided, and the sealing skirt abuts against the sidewall of the sink, which reduces the possibility of dust and other impurities entering the interior of the cabinet from between the sealing skirt and the sidewall of the sink, and improves the sealing performance of the cabinet.

[0037] In some embodiments, the first output pole is electrically connected to the first socket through the base, and the second output pole is electrically connected to the second socket through the base.

[0038] In the above technical solution, the first output pole and the second output pole are connected to the first socket and the second socket through the base, which is convenient to connect.

[0039] In a second aspect, the embodiments of the present application also provide a power-using device, which comprises the above battery device, and the battery device is used to provide or store electric energy.

[0040] In some embodiments, the number of battery devices is at least two, and the first plug of one of the at least two battery devices is connected in series with the second plug of another battery device.

[0041] In the above technical solution, the two battery devices are connected in series through the first plug and the second plug respectively arranged in the two battery devices, so that the circuit design can be simplified and high-power output can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0042] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly introduced as follows. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of the drawings.

[0043] Figure 1 A structural schematic diagram of a vehicle is provided for some embodiments of the present application.

[0044] Figure 2 A structural schematic diagram of a battery device is provided for some embodiments of the present application.

[0045] Figure 3 Another structural schematic diagram of a battery device is provided for some embodiments of the present application.

[0046] Figure 4 A structural schematic diagram of a connector assembly in a battery device is provided for some embodiments of the present application.

[0047] Figure 5 Another structural schematic diagram of a connector assembly in a battery device is provided for some embodiments of the present application.

[0048] Figure 6 Still another structural schematic diagram of a connector assembly in a battery device is provided for some embodiments of the present application.

[0049] Figure 7 An enlarged view of A in FIG. Figure 6

[0050] Figure 8 A structural schematic diagram of a first plug in a battery device is provided for some embodiments of the present application.

[0051] Figure 9 A partial structural schematic diagram of an electric device is provided for some embodiments of the present application.

[0052] Reference signs of the detailed description are as follows:

[0053] 100, vehicle; 200, battery device; 300, controller; 400, motor; 500, battery cell assembly; 520, first output pole; 530, second output pole; 600, box body; 700, connector assembly;

[0054] 1, base;​

[0055] 11, first socket; 111, second electrical connection; 112, second limiting portion; 1121, second mounting hole; 1122, second protrusion; 12, second socket; 121, fourth electrical connection; 122, fourth limiting portion; 13, mounting plate body; 131, first edge; 132, transition edge; 133, second edge; 134, third mounting hole; 135, sink;

[0056] 2, first plug; 21, first electrical connection; 22, first limiting portion; 221, first mounting hole; 222, first protrusion; 223, mounting peripheral wall; 224, first recess;

[0057] 3, second plug; 31, third electrical connection; 32, third limiting portion;

[0058] 4, locking structure;

[0059] 5, switch; 51, first portion; 52, second portion; 53, third portion; 54, recess;

[0060] X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0061] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0062] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the present application are only for the purpose of describing specific embodiments of the present application, and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover not exclusive inclusion. The terms "first", "second" and the like in the specification and claims of the present application and the above description of drawings are used to distinguish different objects, and are not intended to describe a particular order or primary and secondary relationship.

[0063] In the present application, the phrase "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The phrase appears at various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment independent of or to other embodiments.

[0064] In the description of the present application, it should be noted that unless specifically defined and limited, the terms "mounting", "connecting", "connecting", "attaching" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0065] The term "and / or" in the present application is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the present application generally represents that the front and rear associated objects have an "or" relationship.

[0066] In the embodiments of the present application, the same reference signs represent the same parts, and for the sake of brevity, the detailed description of the same parts is omitted in different embodiments. It should be understood that the thickness, length and width of various components in the embodiments of the present application shown in the drawings, and the overall thickness, length and width of the integrated device are only exemplary and should not constitute any limitation on the present application.

[0067] "Multiple" appearing in the present application means two or more (including two).

[0068] The battery device generally uses a connector assembly to output the current of the internal battery monomer assembly. The connector assembly generally includes a base and two plugs, the two plugs are respectively plugged with the base, and the two plugs output the current of the battery monomer assembly to the vehicle end to meet the driving power demand.

[0069] In some cases, the two plugs of the connector assembly can only be plugged on the base in a preset direction, and the wiring direction of the plug is unique. As a result, it is difficult for the connector assembly to meet the wiring requirements of other types of battery devices, that is, the connector assembly is difficult to adapt when applied to other types of battery devices.

[0070] In view of this, the present application provides a battery device, which is configured by arranging the first plug and the first socket in a state that the first plug can be plugged with the first socket in any of at least two directions. In this way, the first plug can be plugged with the first socket in different directions, and the wiring mode of the first plug is more flexible, which can meet different use requirements and improve the applicability of the battery device.

[0071] The technical solutions described in the embodiments of the present application are applicable to various electric equipment using battery devices, for example, mobile phones, portable devices, notebook computers, electric vehicles, electric toys, electric tools, vehicles, ships and spacecraft, for example, spacecraft including airplanes, rockets, space shuttles and spaceships, etc.

[0072] The following embodiments are described for convenience with the electric equipment being a vehicle as an example.

[0073] Figure 1 A structural schematic diagram of a vehicle 100 is provided for some embodiments of the present application.

[0074] As shown in Figure 1 , the vehicle 100 is internally provided with a battery device 200, which can be arranged at the bottom, head or tail of the vehicle 100. The battery device 200 can be used for power supply of the vehicle 100, for example, the battery device 200 can be used as the operating power supply of the vehicle 100.

[0075] The vehicle 100 can further include a controller 300 and a motor 400, and the controller 300 is used to control the battery device 200 to supply power to the motor 400, for example, for the working power demand of the vehicle 100 during starting, navigation and driving.

[0076] In some embodiments of the present application, the battery device 200 can not only be used as the operating power supply of the vehicle 100, but also be used as the driving power supply of the vehicle 100, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 100.

[0077] Figure 2 A structural schematic diagram of a battery device is provided for some embodiments of the present application; Figure 3 Another structural schematic diagram of a battery device is provided for some embodiments of the present application; Figure 4 A structural schematic diagram of a connector assembly in a battery device is provided for some embodiments of the present application; Figure 5 Another structural schematic diagram of a connector assembly in a battery device is provided for some embodiments of the present application.

[0078] As shown in Figures 2-5As shown, the application also provides a battery device 200, which comprises a box 600, at least one battery cell assembly 500, and a connector assembly 700. The box 600 has an accommodation space; the at least one battery cell assembly 500 is located in the accommodation space. The at least one battery cell assembly 500 comprises a first output pole 520 and a second output pole 530, which are used to output the current or sampling signal of the at least one battery cell assembly 500. The connector assembly 700 is arranged on the box 600, and the connector assembly 700 comprises a first plug 2, a second plug 3, a first socket 11, and a second socket 12. The first socket 11 is electrically connected with the first output pole 520, the second socket 12 is electrically connected with the second output pole 530, the first plug 2 is plugged into the first socket 11, the second plug 3 is plugged into the second socket 12, and the first plug 2 and the second plug 3 are used to output the current or sampling signal of the at least one battery cell assembly 500. Wherein, the first plug 2 and the first socket 11 are configured such that the head of the first plug 2 is installed in the first socket 11 in a state of being directed to any one of at least two directions, and the at least two directions are both intersected with a first direction X, which is the direction in which the first plug 2 is plugged into the first socket 11.

[0079] The battery device 200 mentioned in the embodiments of the application can comprise one or more battery cell assemblies 500 for providing voltage and capacity. The battery cell assembly 500 can comprise a plurality of battery cells connected in series, in parallel, or in a mixed manner through a busbar component.

[0080] In some embodiments, the battery device 200 can be a battery pack, which comprises a box 600 and one or more battery cell assemblies 500 accommodated in the box 600.

[0081] As an example, the battery cell assembly 500 can be a battery module, which can be accommodated in the box 600 by fixing the battery module in the box 600.

[0082] As an example, the battery cell assembly 500 can also be accommodated in the box 600 by fixing a plurality of battery cells directly in the box 600.

[0083] As an example, the box 600 can comprise a first box and a second box. The first box and the second box are buckled so that a closed space is formed inside the box 600 to accommodate the battery cell assembly 500. Here, the closed refers to covered or closed, which can be sealed or unsealed. The first box can be a top cover or a bottom plate.

[0084] As an example, the box 600 can include a top cover, a frame and a bottom plate. The top cover and the bottom plate are connected with the frame respectively, so that an enclosed space is formed inside the box 600 to accommodate the battery monomer assembly 500.

[0085] As an example, the box 600 can be part of a chassis structure of the vehicle 100. For example, the top cover of the box 600 can be at least part of a floor of the vehicle 100, or the frame of the box 600 can be at least part of a cross beam and a longitudinal beam of the vehicle 100.

[0086] In some embodiments, the battery device 200 refers to an energy storage device, which includes a box 600, at least one side of which is provided with a door. The energy storage device includes an energy storage container, an energy storage cabinet, etc.

[0087] In this application, the battery monomer can include a lithium ion secondary battery monomer, a lithium ion primary battery monomer, a lithium-sulfur battery monomer, a sodium lithium ion battery monomer, a sodium ion battery monomer or a magnesium ion battery monomer, etc. The embodiments of this application are not limited thereto. The battery monomer can be in the shape of a cylinder, a flat body, a cuboid or other shapes, etc. The embodiments of this application are also not limited thereto.

[0088] The first output pole 520 and the second output pole 530 can be used to output the power of the battery monomer assembly 500, so as to drive the components of the vehicle 100 such as the motor to operate, thereby driving the vehicle 100 to travel. As an example, the connector assembly 700 further includes a base 1, and the first socket 11 and the second socket 12 are both fixed to the base 1. The first output pole 520 is a positive output pole, which is connected to the base 1 and electrically connected to the first socket 11. The second output pole 530 is a negative output pole, which is connected to the base 1 and electrically connected to the second socket 12. The current of the battery monomer assembly 500 flows from the first output pole 520 to the first socket 11, is connected to a high-voltage box through the first plug 2, and the high-voltage box is connected to the end of the vehicle 100 (for example, the motor). The current flows from the end of the vehicle 100 back to the second plug 3, the second socket 12 and the second output pole 530.

[0089] The first socket 11 and the second socket 12 of the embodiment can also be fixed separately to the box 600.

[0090] The first output pole 520 and the second output pole 530 can also be used to output the sampling signals of the battery monomer, such as temperature signals, current signals or voltage signals, etc.

[0091] As an example, the current signal includes the total current signal flowing into (charging) and flowing out (discharging) the battery device.

[0092] As an example, the connector assembly 700 is arranged on the outside of the box 600.

[0093] One of the first plug 2 and the first socket 11 of the embodiment is provided with a protruding part, and the other is provided with a recessed part, and the protruding part and the recessed part are inserted to achieve electrical connection. The direction in which the first plug 2 is inserted into the first socket 11 is also the direction in which the first plug 2 points to the first socket 11.

[0094] The first plug 2 or the second plug 3 of the embodiment includes a head part and a lead-out end, the head part is inserted into the base 1, and the lead-out end is connected to an external component.

[0095] The at least two directions of the embodiment intersect the first direction X, and optionally, the at least two directions are all perpendicular to the first direction X.

[0096] The included angle of the at least two directions of the embodiment is determined according to the actual wiring requirement of the battery device 200. For example, the included angle between adjacent two directions can be 30°, 45°, 60°, 90°, or 120°, etc. The at least two directions of the embodiment can be three directions, four directions, five directions, six directions, etc.

[0097] The electrical connection of the first plug 2 and the first socket 11 of the embodiment can be achieved by bolts, for example, the bolts of the first plug 2 are threadedly connected to the threaded holes of the first socket 11, and this kind of structure is almost not limited by the angle, that is, no matter what the included angle between adjacent two directions is, the first plug 2 and the first socket 11 can be inserted to achieve electrical connection. Of course, the electrical connection can also be achieved by a slide rod, and a plurality of protrusions can be provided on the slide rod, and the plurality of protrusions are in contact with the hole wall of the first socket 11 to achieve electrical connection.

[0098] Of course, in order to further improve the fixing effect of the first plug 2 and the first socket 11, the limiting or even fixing of the first plug 2 and the first socket 11 can be achieved by other structures, at this time, the fixing structure of the first plug 2 and the first socket 11 respectively needs to meet the condition that they can be connected in any direction of the above-mentioned at least two directions to meet the installation condition. The fixing can be achieved by the clamping of buckles and clamping grooves.

[0099] The battery device 200 of the embodiment is configured such that the first plug 2 and the first socket 11 are installed together in the state that the first plug 2 faces any direction of the at least two directions, and the at least two directions intersect the direction in which the first plug 2 is inserted into the first socket 11. In this way, the first plug 2 can be inserted into the first socket 11 in the case of facing different directions, the wiring mode of the first plug 2 is more flexible, different use requirements can be met, and the applicability of the battery device is improved.

[0100] In some embodiments, the at least two directions include a second direction Y and a third direction Z, and the included angle between the second direction Y and the third direction Z is 180°, 90°, 60°, or 45°.

[0101] These angles are commonly used and are relatively easy to make.

[0102] In some embodiments, the number of directions is greater than or equal to three, and the angle between any two adjacent directions is 90°, 60°, or 45°.

[0103] The present embodiment includes the following schemes:

[0104] The number of directions is four, and the angle between any two adjacent directions is 90°.

[0105] The number of directions is six, and the angle between any two adjacent directions is 60°.

[0106] The number of directions is eight, and the angle between any two adjacent directions is 45°.

[0107] In this way, more types of battery devices 200 can be adapted, and the application range of the connector assembly is improved.

[0108] Optionally, the second direction Y is the direction in which the first socket 11 points to the second socket 12.

[0109] In some embodiments, the first plug 2 includes a first electrical connection part 21 and a first limiting part 22, the first socket 11 includes a second electrical connection part 111 and a second limiting part 112, the first plug 2 and the first socket 11 are connected by the first electrical connection part 21 and the second electrical connection part 111, and the first limiting part 22 and the second limiting part 112 are connected and limit the movement of the first plug 2 relative to the first socket 11.

[0110] In the present embodiment, one of the first electrical connection part 21 and the second electrical connection part 111 is a protruding part, and the other is a recessed part. The protruding part and the recessed part are connected to achieve electrical connection between the first plug 2 and the first socket 11.

[0111] In the present embodiment, the first limiting part 22 and the second limiting part 112 limit the movement of the first plug 2 relative to the first socket 11. The movement direction can be parallel to the first direction X or perpendicular to the first direction X, for example, the movement can be rotation or translation. For example, one of the first limiting part 22 and the second limiting part 112 can be a jaw, and the other can be a seat. The first plug 2 and the first socket 11 are limited by the clamping of the jaw and the seat.

[0112] The first limiting part 22 and the second limiting part 112 are provided to limit the first plug 2 and the first socket 11, so as to improve the accuracy of the position of the first electrical connection part 21 and the second electrical connection part 111, thereby improving the reliability of the electrical connection.

[0113] In some embodiments, the first limiting portion 22 comprises a plurality of first mounting holes 221, the second limiting portion 112 comprises a plurality of second mounting holes 1121, the plurality of first mounting holes 221 are respectively arranged opposite to the plurality of second mounting holes 1121 along the first direction X, and the connector assembly 700 further comprises a locking structure 4, at least part of the plurality of first mounting holes 221 and the second mounting holes 1121 opposite thereto are locked by the locking structure 4.

[0114] The arrangement of the plurality of first mounting holes 221 and the arrangement of the plurality of second mounting holes 1121 of the present embodiment should meet the condition that the head of the first plug 2 can be fixed to the first socket 11 in the state of being oriented in any of the at least two directions.

[0115] The plurality of first mounting holes 221 and the plurality of second mounting holes 1121 of the present embodiment are arranged opposite to each other along the third direction Z, which means that the number of the first mounting holes 221 and the second mounting holes 1121 is equal, and the first mounting hole 221 and the second mounting hole 1121 opposite along the third direction Z form a pair, so that the locking structure 4 passes through both to connect the first plug 2 and the first socket 11.

[0116] Optionally, the shape of the outer edge of the first mounting hole 221 and the second mounting hole 1121 is circular.

[0117] Illustratively, the locking structure 4 can be a bolt-nut assembly, a rivet assembly, etc., or can be only a bolt, which passes through the first mounting hole 221 and is tightened in the second mounting hole 1121.

[0118] Among the plurality of first mounting holes 221 of the present embodiment, only part of the first mounting holes 221 can be used for locking in one of the orientations of the head, and the remaining part of the first mounting holes 221 can be used for locking in other orientations. All of the first mounting holes 221 can also be locked in any orientation.

[0119] The first limiting portion 22 is arranged to comprise a plurality of first mounting holes 221, the second limiting portion 112 is arranged to comprise a plurality of second mounting holes 1121, and the locking structure 4 passes through both to fix the first plug 2 and the first socket 11. This connection method is convenient and fast, and is easy to disassemble.

[0120] In some embodiments, the at least two directions include the second direction Y and the third direction Z, the second direction Y and the third direction Z are perpendicular, the projection shape of the plurality of first mounting holes 221 in the same projection plane perpendicular to the first direction X is a four-fold symmetric figure, and the projection shape of the plurality of second mounting holes 1121 in the same projection plane perpendicular to the first direction X is a four-fold symmetric figure.

[0121] The four-fold symmetry pattern of the present embodiment refers to a pattern that coincides with the initial position after rotating 90°, 180°, 270°, and 360° around its geometric center. It should be noted that the coincidence refers to being considered coincident within the range of processing errors.

[0122] The cross-sectional shape of the plurality of first mounting holes 221 in the first direction X refers to the total shape formed by the plurality of first mounting holes 221. The same applies to the plurality of second mounting holes 1121.

[0123] In this way, the first plug 2 and the first socket 11 can be mounted in four directions, i.e., the second direction Y, the direction opposite to the second direction Y, the third direction Z, and the direction opposite to the third direction Z, further improving the applicability of the connector assembly 700 and increasing its use range.

[0124] Figure 6 Another structural schematic diagram of a connector assembly in a battery device provided by some embodiments of the present application; Figure 7 Another structural schematic diagram of a connector assembly in a battery device provided by some embodiments of the present application; Figure 6 An enlarged view of position A in FIG. 8; Figure 8 A structural schematic diagram of a first plug in a battery device provided by some embodiments of the present application.

[0125] Please refer to Figures 6-8 In some embodiments, the first limiting portion 22 includes a plurality of first protrusions 222 and a mounting peripheral wall 223 surrounding the first electrical connecting portion 21, the plurality of first protrusions 222 are arranged at intervals along the circumference of the first electrical connecting portion 21, the plurality of first protrusions 222 are arranged on the side of the mounting peripheral wall 223 facing the first electrical connecting portion 21, the plurality of first protrusions 222 and the mounting peripheral wall 223 form a plurality of first grooves 224, the second limiting portion 112 includes a plurality of second protrusions 1122 surrounding the second electrical connecting portion 111, in the state that the head of the first plug 2 faces any one of at least two directions, the first grooves 224 and the second protrusions 1122 are inserted and matched, and the number of the first grooves 224 into which the second protrusions 1122 are inserted is at least two.

[0126] In the state that the head of the first plug 2 faces any one of at least two directions, at least two first grooves 224 are respectively inserted and matched with different second protrusions 1122. In each state, the number of the first grooves 224 into which the second protrusions 1122 are inserted can be the same or different.

[0127] The way that the first grooves 224 and the second protrusions 1122 are inserted and matched realizes the limiting of the first plug 2 and the first socket 11 in the direction perpendicular to the first direction X, which not only has a good limiting effect, but also facilitates plugging and unplugging.

[0128] In some embodiments, the at least two first grooves 224 into which the second protrusions 1122 are inserted are distributed on opposite sides of the first electrical connection part 21.

[0129] In some embodiments, the first grooves 224 of the present embodiment are distributed not only on opposite sides of the first electrical connection part 21, but also on other positions, such as being spaced apart around the entire circumference of the first electrical connection part 21.

[0130] In this way, the second protrusions 1122 and the first grooves 224 can form a good limiting effect in the two directions opposite to the first electrical connection part 21, thereby improving the accuracy of the position of the first electrical connection part 21 and the second electrical connection part 111 and improving the reliability of the electrical connection between the first electrical connection part 21 and the second electrical connection part 111.

[0131] In some embodiments, the first limiting part 22 comprises a plurality of third protrusions surrounding the first electrical connection part 21, the second limiting part 112 comprises a limiting circumferential wall surrounding the second electrical connection part 111 and a plurality of fourth protrusions, the plurality of fourth protrusions are spaced apart along the circumference of the second electrical connection part 111, the plurality of fourth protrusions are arranged on the side of the limiting circumferential wall facing the second electrical connection part 111, the plurality of fourth protrusions and the limiting circumferential wall form a plurality of second grooves, in the state that the head of the first plug 2 is directed in any one of the at least two directions, the second grooves are inserted and matched with the third protrusions, and the number of the second grooves into which the third protrusions are inserted is at least two.

[0132] In the state that the first plug 2 is directed in any one of the at least two directions, at least two second grooves are respectively inserted and matched with different third protrusions. The number of the second grooves into which the third protrusions are inserted can be the same or different in each state.

[0133] The way that the second grooves are inserted and matched with the third protrusions realizes the limiting of the first plug 2 and the first socket 11 in the direction perpendicular to the first direction X, which not only has a good limiting effect, but also facilitates plugging and unplugging.

[0134] Please refer to Figure 4 and Figure 5 In some embodiments, one of the first electrical connection part 21 and the second electrical connection part 111 comprises a threaded rod, and the other comprises a threaded hole, and the threaded rod is threadedly connected in the threaded hole.

[0135] In the present embodiment, the first plug 2 can be provided with the threaded rod, or the first socket 11 can be provided with the threaded rod.

[0136] The electrical connection between the first plug 2 and the first socket 11 through the threaded form can make them in close contact, thereby improving the reliability of the electrical connection between them.

[0137] In some embodiments, the second plug 3 comprises a third electrical connecting part 31 and a third limiting part 32, the second socket 12 comprises a fourth electrical connecting part 121 and a fourth limiting part 122, the second plug 3 and the second socket 12 are connected by the third electrical connecting part 31 and the fourth electrical connecting part 121, the third limiting part 32 and the fourth limiting part 122 are connected and limit the movement of the second plug 3 relative to the second socket 12, and the second plug 3 and the second socket 12 are configured such that when the head of the second plug 3 is in a state of moving towards any one of the at least two directions, the third electrical connecting part 31 and the fourth electrical connecting part 121 are both connected, and the third limiting part 32 and the fourth limiting part 122 are both connected.

[0138] The third electrical connecting part 31 and the fourth electrical connecting part 121 can be connected in a threaded manner as the first electrical connecting part 21 and the second electrical connecting part 111 described above, or can be connected in other manners.

[0139] The third limiting part 32 and the fourth limiting part 122 of the present embodiment limit the movement of the second plug 3 relative to the second socket 12, and the movement direction can be parallel to the first direction X, or can be a direction perpendicular to the first direction X, or can be a rotating direction. Illustratively, the third limiting part 32 and the fourth limiting part 122 can be the mounting hole structure described above, or can be the structure of the protrusion and the groove plug-in cooperation described above.

[0140] In this way, the second plug 3 can be inserted into the second socket 12 in different directions, and the wiring mode of the second plug 3 is more flexible, further improving the applicability of the battery device.

[0141] In some embodiments, the first output pole 520 and the second output pole 530 are used to output the sampling signal of at least one battery monomer assembly 500, and the sampling signal includes a voltage signal or a temperature signal.

[0142] Illustratively, the voltage signal includes a total output voltage signal of the battery module, a voltage signal of each battery monomer, etc.

[0143] Illustratively, the temperature signal includes a surface temperature signal of a key battery monomer; a temperature signal near the inside of the battery module, the busbar, and the key power device (such as a contactor).

[0144] The connector assembly 700 is suitable for the communication of the sampled low-voltage line, further improving the use range of the battery device.

[0145] In some embodiments, the connector assembly 700 further comprises a base 1, and the first socket 11 and the second socket 12 are both fixed to the base 1 and connected with the box through the base 1.

[0146] The first socket 11 and the second socket 12 are integrated together through the base 1, facilitating the installation of the connector assembly 700 with the box.

[0147] In some embodiments, the connector assembly 700 further comprises a switch 5, which is arranged on the base 1 and located between the first socket 11 and the second socket 12, and is used to control the on-off of the current output circuit or the sampling signal output circuit of the at least one battery monomer assembly 500.

[0148] The switch 5 of the embodiment can be a relay, a contactor, a MOSFET, an IGBT, a BJT, a thyristor, an analog switch, etc. The switch 5 is in series in the circuit.

[0149] The switch 5 is arranged to facilitate the control of the on-off of the circuit and improve the convenience of use of the connector assembly 700.

[0150] Please continue to refer to Figure 6 In some embodiments, the base 1 comprises a mounting plate body 13, the first socket 11, the second socket 12 and the switch 5 are arranged on the mounting plate body 13, the mounting plate body 13 is an injection molding structure and is mounted on the box 600, the mounting plate body 13 comprises a first edge 131, a transition edge 132 and a second edge 133 connected in sequence, the first edge 131 and the second edge 133 are arranged at an angle, and the first edge 131 and the second edge 133 are respectively arranged at an obtuse angle with the transition edge 132 and are connected in a smooth transition.

[0151] The mounting plate body 13 of the embodiment is a structure formed by using an injection molding process.

[0152] The angle arrangement of the first edge 131 and the second edge 133 of the embodiment means that the extension planes of the first edge 131 and the second edge 133 intersect and form an acute angle, an obtuse angle or a right angle. For example, the first edge 131 and the second edge 133 are arranged at a right angle.

[0153] The obtuse angle arrangement and the smooth transition connection of the first edge 131 and the transition edge 132 means that the extension planes of the first edge 131 and the transition edge 132 intersect and form an obtuse angle, and they are connected through a curved surface. The same is true for the second edge 133 and the transition edge 132.

[0154] The connection of the first edge 131 and the second edge 133 through the transition edge 132 is arranged at an obtuse angle with the first edge 131 and the second edge 133, which is relatively inward in position, so that the mounting plate body 13 occupies less space, reduces the interference with other components, and also reduces the generation of burrs in the manufacturing process of the injection molding structure, improving the appearance quality of the product.

[0155] In some embodiments, the switch 5 comprises a first portion 51, a second portion 52 and a third portion 53 arranged in sequence, the first portion 51 and the third portion 53 each comprise a plurality of recesses 54, the openings of the recesses 54 are arranged away from the base 1, the sidewalls of the plurality of recesses 54 comprise a plurality of reinforcing ribs, at least part of the reinforcing ribs are arranged in cross.

[0156] The recesses 54 of the present embodiments can be groove structures having a bottom wall and a sidewall, or can be hole structures having only a sidewall.

[0157] Optionally, the plurality of reinforcing ribs are arranged in cross to form the sidewalls of the plurality of recesses 54.

[0158] Optionally, the first portion 51, the second portion 52 and the third portion 53 are arranged in sequence along a direction from the first socket 11 to the second socket 12.

[0159] The at least part of the first portion 51 gradually decreases in height relative to the base 1 along a direction from the second portion 52 to the first portion 51, the decreasing amplitudes of the first portion 51 can be the same or different. The same applies to the third portion 53.

[0160] The arrangement of the recesses 54 can increase the heat dissipation area of the switch 5 and improve the heat dissipation effect of the switch 5, and arranging the first portion 51 to gradually decrease in height relative to the base 1 along a direction from the second portion 52 to the first portion 51 can not only reduce the space occupied by the first portion 51, but also facilitate the grasping of the first portion 51. Arranging the second portion 52 to gradually decrease in height relative to the base 1 along a direction from the second portion 52 to the third portion 53 can not only reduce the space occupied by the second portion 52, but also facilitate the grasping of the second portion 52.

[0161] In some embodiments, the base 1 is provided with a third mounting hole 134 and a sink 135 in communication with the third mounting hole 134, the sink 135 is located on a side of the third mounting hole 134 away from the cabinet 600, and the connector assembly 700 comprises a locking assembly, the locking assembly locks the base 1 to the cabinet 600, the locking assembly has an annular protruding portion and a sealing skirt surrounding the annular protruding portion, the annular protruding portion abuts against the bottom surface of the sink 135, and the sealing skirt abuts against the sidewall of the sink 135.

[0162] For example, the locking assembly comprises a bolt and nut assembly, the annular protruding portion is the head portion of the bolt, and the sealing skirt is arranged around the head portion of the bolt and can be made of rubber or silicone.

[0163] The sink 135 is arranged, and the sealing skirt is abutted against the sidewall of the sink 135, so that the possibility of dust and other impurities entering the inside of the cabinet 600 from between the sealing skirt and the sidewall of the sink 135 is reduced, and the sealing performance of the cabinet 600 is improved.

[0164] In some embodiments, the first output pole 520 is electrically connected to the first socket 11 through the base 1, and the second output pole 530 is electrically connected to the second socket 12 through the base 1.

[0165] The base 1 is provided with a first connector and a second connector, the first output pole 520 is connected to the first connector and is electrically connected to the first socket 11 through the first connector, and the second output pole 530 is connected to the second connector and is electrically connected to the second socket 12 through the second connector.

[0166] The first output pole 520 and the second output pole 530 are connected to the first socket 11 and the second socket 12 through the base 1, and the connection is more convenient.

[0167] The embodiments of the present application also provide a power consumption device, which comprises the battery device 200 described above, and the battery device 200 is used for providing or storing electric energy.

[0168] When the number of the battery device 200 in the embodiments of the present application is at least two, the plurality of battery devices 200 can be connected in series, can be connected in parallel, or can be connected in series and in parallel.

[0169] Figure 9 It is a partial structural schematic diagram of the power consumption device in some embodiments of the present application.

[0170] Please refer to Figure 9 In some embodiments, the number of the battery device 200 is at least two, and the first plug 2 of one of the at least two battery devices 200 is connected in series with the second plug 3 of another battery device 200.

[0171] Taking the first output pole 520 as a positive output pole as an example, the first plug 2 is connected to the positive output pole, and the second plug 3 is connected to the negative output pole, so that the at least two battery devices 200 are connected in series through the first plug 2 and the second plug 3 connected in series, and the output of the current is realized.

[0172] The two battery devices 200 are connected in series through the first plug 2 and the second plug 3 respectively arranged in the two battery devices 200, so that the design of the circuit is simplified, and the output of high power is realized.

[0173] Please refer to Figures 2-5The application provides a battery device 200, which comprises a box 600, at least one battery cell assembly 500 and a connector assembly 700. The box 600 has a containing space, and the at least one battery cell assembly 500 is arranged in the containing space. The at least one battery cell assembly 500 comprises a first output pole 520 and a second output pole 530, which are used for outputting the current or sampling signal of the at least one battery cell assembly 500. The connector assembly 700 is arranged on the box 600, and comprises a first plug 2, a second plug 3, a first socket 11 and a second socket 12. The first socket 11 is electrically connected with the first output pole 520, the second socket 12 is electrically connected with the second output pole 530, the first plug 2 is plugged into the first socket 11, the second plug 3 is plugged into the second socket 12, and the first plug 2 and the second plug 3 are used for outputting the current or sampling signal of the at least one battery cell assembly 500. The first plug 2 and the first socket 11 are configured such that the head of the first plug 2 is mounted on the first socket 11 in any direction of at least two directions, and the at least two directions are perpendicular to a first direction X, which is the direction in which the first plug 2 is plugged into the first socket 11. The at least two directions comprise a second direction Y and a third direction Z, and the included angle between the second direction Y and the third direction Z is 180°, 90°, 60° or 45°. The first plug 2 comprises a first electric connecting part 21 and a first limiting part 22, the first socket 11 comprises a second electric connecting part 111 and a second limiting part 112, the first plug 2 and the first socket 11 are plugged through the first electric connecting part 21 and the second electric connecting part 111, and the first limiting part 22 and the second limiting part 112 are connected and limit the movement of the first plug 2 relative to the first socket 11. One of the first electric connecting part 21 and the second electric connecting part 111 comprises a threaded rod, and the other comprises a threaded hole, and the threaded rod is screwed into the threaded hole. The second plug 3 comprises a third electric connecting part 31 and a third limiting part 32, the second socket 12 comprises a fourth electric connecting part 121 and a fourth limiting part 122, the second plug 3 and the second socket 12 are plugged through the third electric connecting part 31 and the fourth electric connecting part 121, the third limiting part 32 and the fourth limiting part 122 are connected and limit the movement of the second plug 3 relative to the second socket 12, and the second plug 3 and the second socket 12 are configured such that the head of the second plug 3 is plugged in any direction of at least two directions, the third electric connecting part 31 and the fourth electric connecting part 121 are plugged, and the third limiting part 32 and the fourth limiting part 122 are connected. The connector assembly 700 further comprises a base 1, the first socket 11 and the second socket 12 are fixed on the base 1, and the base 1 is connected with the box. The connector assembly 700 further comprises a switch 5, which is arranged on the base 1 and between the first socket 11 and the second socket 12, and is used for controlling the on-off of the current output circuit or sampling signal output circuit of the at least one battery cell assembly 500.The first output pole 520 is electrically connected with the first socket 11 through the base 1, and the second output pole 530 is electrically connected with the second socket 12 through the base 1.

[0174] It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0175] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features, but these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery device, characterized in that, include: The container has storage space; At least one battery cell assembly is located in the accommodating space, the at least one battery cell assembly includes a first output terminal and a second output terminal, the first output terminal and the second output terminal are used to output the current or sampling signal of the at least one battery cell assembly; A connector assembly, disposed within the housing, includes a first plug, a second plug, a first socket, and a second socket. The first socket is electrically connected to the first output electrode, and the second socket is electrically connected to the second output electrode. The first plug is inserted into the first socket, and the second plug is inserted into the second socket. The first plug and the second plug are used to output the current or sampling signal of at least one battery cell assembly. The first plug and the first socket are configured such that the first plug is installed in the first socket with the head of the first plug facing any one of at least two directions, and the at least two directions intersect at a first direction, which is the direction in which the first plug is inserted into the first socket.

2. The battery device according to claim 1, characterized in that, The at least two directions include a second direction and a third direction, wherein the angle between the second direction and the third direction is 180°, 90°, 60° or 45°.

3. The battery device according to claim 1, characterized in that, The first plug includes a first electrical connection portion and a first limiting portion, and the first socket includes a second electrical connection portion and a second limiting portion. The first plug and the first socket are connected through the first electrical connection portion and the second electrical connection portion. The first limiting portion and the second limiting portion are connected and restrict the movement of the first plug relative to the first socket.

4. The battery device according to claim 3, characterized in that, The first limiting part includes a plurality of first mounting holes, and the second limiting part includes a plurality of second mounting holes. The plurality of first mounting holes and the plurality of second mounting holes are respectively arranged opposite to each other along the first direction. The connector assembly further includes a locking structure through which at least a portion of the first mounting holes and the opposing second mounting holes are locked.

5. The battery device according to claim 4, characterized in that, The at least two directions include a second direction and a third direction, wherein the second direction is perpendicular to the third direction. The projection shape of the plurality of first mounting holes in the same projection plane perpendicular to the first direction is a fourfold symmetrical figure, and the projection shape of the plurality of second mounting holes in the same projection plane perpendicular to the first direction is a fourfold symmetrical figure.

6. The battery device according to claim 3, characterized in that, The first limiting portion includes a plurality of first protrusions and a mounting peripheral wall surrounding the first electrical connection portion. The plurality of first protrusions are spaced apart circumferentially along the first electrical connection portion. The plurality of first protrusions are disposed on the side of the mounting peripheral wall facing the first electrical connection portion. The plurality of first protrusions and the mounting peripheral wall form a plurality of first grooves. The second limiting portion includes a plurality of second protrusions surrounding the second electrical connection portion. When the head of the first plug is facing any of the at least two directions, the second protrusions are inserted into the first grooves, and the number of first grooves into which the second protrusions are inserted is at least two.

7. The battery device according to claim 6, characterized in that, At least two of the first grooves, each with a second protrusion, are distributed on opposite sides of the first electrical connection portion.

8. The battery device according to claim 3, characterized in that, The first limiting portion includes a plurality of third protrusions surrounding the first electrical connection portion. The second limiting portion includes a limiting peripheral wall surrounding the second electrical connection portion and a plurality of fourth protrusions. The plurality of fourth protrusions are spaced apart circumferentially along the second electrical connection portion. The plurality of fourth protrusions are disposed on the side of the limiting peripheral wall facing the second electrical connection portion. The plurality of fourth protrusions and the limiting peripheral wall form a plurality of second grooves. When the head of the first plug is facing any of the at least two directions, the second grooves are inserted into the third protrusions, and the number of second grooves with the third protrusions inserted is at least two.

9. The battery device according to claim 3, characterized in that, One of the first electrical connection portion and the second electrical connection portion includes a threaded rod, and the other includes a threaded hole, wherein the threaded rod is threadedly connected to the threaded hole.

10. The battery device according to any one of claims 1-9, characterized in that, The second plug includes a third electrical connection portion and a third limiting portion, and the second socket includes a fourth electrical connection portion and a fourth limiting portion. The second plug and the second socket are connected via the third electrical connection portion and the fourth electrical connection portion. The third limiting portion and the fourth limiting portion are connected and limit the movement of the second plug relative to the second socket. The second plug and the second socket are configured such that, when the head of the second plug is facing any of the at least two directions, both the third electrical connection portion and the fourth electrical connection portion are connected.

11. The battery device according to any one of claims 1-9, characterized in that, The first output terminal and the second output terminal are used to output the sampling signal of the at least one battery cell assembly, the sampling signal including a voltage signal or a temperature signal.

12. The battery device according to claim 1, characterized in that, The connector assembly also includes a base, to which both the first socket and the second socket are fixed and connected to the housing.

13. The battery device according to claim 12, characterized in that, The connector assembly further includes a switch disposed on the base and located between the first socket and the second socket. The switch is used to control the on / off state of the current output circuit or the sampling signal output circuit of the at least one battery cell assembly.

14. The battery device according to claim 13, characterized in that, The base includes a mounting plate, on which the first socket, the second socket, and the switch are all disposed. The mounting plate is an injection-molded structure and is mounted on the housing. The mounting plate includes a first edge, a transition edge, and a second edge connected in sequence. The first edge and the second edge are set at an angle, and the first edge and the second edge are respectively set at an obtuse angle to the transition edge and are smoothly connected.

15. The battery device according to claim 13, characterized in that, The switch includes a first part, a second part, and a third part arranged sequentially. The first part and the third part each include a plurality of recesses. The openings of the recesses are disposed away from the base. The sidewalls of the plurality of recesses include a plurality of reinforcing ribs. At least a portion of the reinforcing ribs are arranged to intersect. Along the direction from the second portion to the first portion, at least a portion of the first portion gradually decreases in protrusion height relative to the base, and / or, along the direction from the second portion to the third portion, at least a portion of the third portion gradually decreases in protrusion height relative to the base.

16. The battery device according to claim 12, characterized in that, The base is provided with a third mounting hole and a recessed platform communicating with the third mounting hole. The recessed platform is located on the side of the third mounting hole away from the housing. The connector assembly includes a locking assembly that locks the base to the housing. The locking assembly has an annular protrusion and a sealing skirt surrounding the annular protrusion. The annular protrusion abuts against the bottom surface of the recessed platform, and the sealing skirt abuts against the side wall of the recessed platform.

17. The battery device according to claim 12, characterized in that, The first output electrode is electrically connected to the first socket via the base, and the second output electrode is electrically connected to the second socket via the base.

18. An electrical appliance, characterized in that, Includes the battery device as described in any one of claims 1-17, the battery device being used to provide electrical energy or store electrical energy.

19. The electrical equipment according to claim 18, characterized in that, The number of battery devices is at least two, and in the at least two battery devices, the first plug of one battery device is connected in series with the second plug of the other battery device.

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