Battery box convenient for series-parallel connection

Abstract

The utility model discloses a battery box convenient for series-parallel connection. The battery box comprises a box body, a cover plate, a plurality of first conductive components and a plurality of second conductive components, the box body is provided with a containing cavity used for containing the battery cell and a plurality of connecting parts, and the connecting parts are used for being connected to an external component or another box body; the cover plate covers the box body and seals the accommodating cavity; the first conductive component is arranged on the outer wall of the box body, at least partially extends into the accommodating cavity, and is used for being in contact with the positive electrode or the negative electrode of the battery cell to form a serial and / or parallel circuit; the second conductive component is used for connecting anodes or cathodes of different battery cells in the box body to form a serial and / or parallel circuit; by means of the structure, when the capacity needs to be increased, an array mode of rearranging the battery cells is not needed, a plurality of battery boxes of the same model are directly used, the plurality of battery boxes are connected in series and / or in parallel through the second conductive assemblies, and operation is very simple and convenient.

Description

Technical Field

[0001] The utility model relates to the field of battery boxes, and particularly relates to a battery box facilitating series and parallel connection. Background Art

[0002] Batteries are commonly used energy storage devices in daily life and are widely used in various fields. The battery box supports cylindrical batteries with the positive and negative electrodes of the battery at the two ends of the battery respectively, such as batteries of specifications 32XXX and 33XXX. Common models include Zhongbi New Energy 32140FS series, Mianyang Lithium Source New Energy LY32140 series, Taizhou Jiashikai I FR32140 series, etc.

[0003] However, the existing battery boxes are generally just pure "boxes" that only provide the function of accommodating battery cells. If you want to increase the capacity by series and parallel connection, usually only a "box" of a larger size can be selected, and the array mode of the battery cells needs to be rearranged, and then the battery cell circuits are connected by spot welding or soldering. The battery box with this structure has the disadvantage of inconvenient series and parallel connection. Therefore, there is an urgent need for a battery box facilitating series and parallel connection to solve the above problems. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a battery box facilitating series and parallel connection.

[0005] An embodiment of the utility model adopts the following technical solution to solve its technical problem: A battery box facilitating series and parallel connection includes a box body, a cover plate, a plurality of first conductive components and a plurality of second conductive components;

[0006] A cavity for accommodating battery cells and a plurality of connection parts are arranged on the box body, and the connection parts are used for connecting to external components or another box body;

[0007] The cover plate is covered on the box body and closes the cavity;

[0008] The first conductive components are arranged on the outer wall of the box body and at least partially extend into the cavity, and are used for contacting the positive or negative electrode of the battery cell to form a series and / or parallel circuit;

[0009] The second conductive components are used for connecting the positive or negative electrodes of the battery cells in different box bodies to form a series and / or parallel circuit.

[0010] As one of the preferred embodiments of the present utility model, the first conductive component includes a first conductive sheet, a conductive bolt, and a limit nut. The conductive bolt passes through the box body from the inside to the outside, and the limit nut is threadedly connected to the conductive bolt and abuts against the outside of the box body. One end of the first conductive sheet passes through the conductive bolt and is clamped between the limit nut and the box body, and the other end of the first conductive sheet passes through another conductive bolt and is clamped between another limit nut and another box body.

[0011] As one of the preferred embodiments of the present utility model, the first conductive component is movably arranged on the box body, and further includes an elastic member arranged between the first conductive component and the inner side wall of the box body. The elastic member is used to push the first conductive component into close contact with the positive or negative electrode of the battery cell.

[0012] As one of the preferred embodiments of the present utility model, the elastic member is arranged as a helical spring.

[0013] As one of the preferred embodiments of the present utility model, the second conductive component includes a second conductive sheet, a third conductive sheet, and a wire. The second conductive sheet is connected to one end of the wire, and the third conductive sheet is connected to the other end of the wire. The second conductive sheet is connected to the positive or negative electrode of the battery cell in one of the boxes, and the third conductive sheet is connected to the positive or negative electrode of the battery cell in the other box.

[0014] As one of the preferred embodiments of the present utility model, the connecting portion is arranged as a mounting ear, and the mounting ear is provided with a mounting hole.

[0015] The beneficial effects of the present utility model: A battery box facilitating series and parallel connection includes a box body, a cover plate, a plurality of first conductive components, and a plurality of second conductive components; the box body is provided with a cavity for accommodating battery cells and a plurality of connecting portions for connecting to external components or another box body; the cover plate covers the box body and closes the cavity; the first conductive components are arranged on the outer wall of the box body and at least partially extend into the cavity to contact the positive or negative electrode of the battery cell to form a series and / or parallel circuit; the second conductive components are used to connect the positive or negative electrodes of the battery cells in different boxes to form a series and / or parallel circuit; with the above structure, when increasing the capacity is needed, there is no need to re-arrange the array of battery cells, but directly use a plurality of battery boxes of exactly the same model, and connect the plurality of battery boxes in series and / or parallel through the second conductive components, which is very simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, where:

[0017] Figure 1 is a schematic structural diagram of the first embodiment of a battery box facilitating series and parallel connection;

[0018] Figure 2 Exploded view of the first embodiment of a battery box facilitating series and parallel connections;

[0019] Figure 3 Structural schematic diagram of the second embodiment of a battery box facilitating series and parallel connections;

[0020] Figure 4 Exploded view of the second embodiment of a battery box facilitating series and parallel connections. Detailed implementation manners

[0021] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be construed as a limitation on the protection scope of the present invention.

[0022] In the description of the present invention, the meaning of "a plurality of" is two or more. Understand "greater than", "less than", "exceeding", etc. as not including the recited number, and understand "above", "below", "within", etc. as including the recited number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0023] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present invention.

[0024] In the present invention, unless otherwise clearly defined, words such as "set", "install", "connect", etc. should be understood in a broad sense. For example, they can be directly connected, or indirectly connected through an intermediate medium; they can be fixedly connected, or detachably connected, or integrally formed; they can be mechanically connected; they can be the communication inside two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meaning of the above words in the present invention in combination with the specific content of the technical solution.

[0025] Refer to Figures 1 to 4 , a battery box facilitating series and parallel connections, comprising a box body 10, a cover plate 20, a plurality of first conductive components 30, and a plurality of second conductive components 40;

[0026] The box body 10 is provided with a cavity 11 for accommodating the battery cell 50 and a plurality of connecting parts 70, and the connecting parts 70 are used for connecting to external components or another box body 10;

[0027] The cover plate 20 is covered on the box body 10 and closes the cavity 11;

[0028] The first conductive component 30 is arranged on the outer wall of the box body 10 and at least partially extends into the cavity 11, and is used for contacting the positive or negative electrode of the battery cell 50 to form a series and / or parallel circuit;

[0029] The second conductive component 40 is used for connecting the positive or negative electrodes of the battery cells 50 in different box bodies 10 to form a series and / or parallel circuit.

[0030] Refer to Figures 1-4 , in the present utility model, a plurality of battery cells 50 can be accommodated in a single box body 10, and the plurality of battery cells 50 form a first series and / or parallel circuit through the first conductive component 30, and a second series and / or parallel circuit can also be formed between a plurality of box bodies 10 through the second conductive component 40. Specifically, in a single box body 10, the battery cells 50 are arranged in the required series and / or parallel manner. Correspondingly, the first conductive component 30 is arranged on the outer wall of the box body 10. As a preferred embodiment of the first conductive component 30, the first conductive component 30 includes a first conductive sheet 31, a conductive bolt 32 and a limit nut 33. The conductive bolt 32 penetrates through the box body 10 from the inside to the outside, and the limit nut 33 is threadedly connected to the conductive bolt 32 and abuts against the outside of the box body 10. One end of the first conductive sheet 31 penetrates through the conductive bolt 32 and is clamped between the limit nut 33 and the box body 10, and the other end of the first conductive sheet 31 penetrates through another conductive bolt 32 and is clamped between another limit nut 33 and another box body 10; during assembly, each conductive bolt 32 is installed on the box body 10, then each connection end of the first conductive sheet 31 penetrates through different conductive bolts 32, and then the mounting nut 34 is threadedly connected to the conductive bolt 32, so that the first conductive sheet 31 is clamped between the limit nut 33 and the box body 10; the series and / or parallel connection of the battery cells 50 in a single box body 10 is completed.

[0031] In a further embodiment, refer to Figures 3-4, the capacity is increased by connecting two battery boxes in series. Specifically, after the two box bodies 10 are laid on their sides (the cover plates 10 facing one side), they are arranged back to back (the bottoms of the box bodies 10 lean against each other), and the two box bodies 10 are connected and fixed through the connecting parts 70 thereon. The preferred connection method is the bolt connection structure 80. Of course, the box body 10 can also be locked to an external component (such as an equipment shell) through the bolt connection structure 80; then, the second conductive component 40 is used to connect the output terminal on the first box body 10 to the input terminal on the second box body 10. The input terminal on the first box body 10 is used as the total input, and the output terminal on the first box body 10 is used as the total output, thereby constructing two series-connected battery boxes; the advantage of the present utility model is that: with the above structure, when the capacity needs to be increased, there is no need to rearrange the array mode of the battery cells, but directly use multiple battery boxes of exactly the same model, and connect multiple battery boxes in series and / or in parallel through the second conductive component, which is very simple and convenient.

[0032] In one embodiment, the first conductive component 30 is movably arranged on the box body 10, and an elastic member 60 is further arranged between the first conductive component 30 and the inner side wall of the box body 10. The elastic member 60 is used to push the first conductive component 30 into close contact with the positive or negative electrode of the battery cell 50.

[0033] Preferably, the elastic member 60 is arranged as a helical spring.

[0034] In one embodiment, the second conductive component 40 includes a second conductive sheet 41, a third conductive sheet, and a wire 42. The second conductive sheet 41 is connected to one end of the wire 42, and the third conductive sheet is connected to the other end of the wire 42. The second conductive sheet 41 is connected to the positive or negative electrode of the battery cell 50 in one of the box bodies 10, and the third conductive sheet is connected to the positive or negative electrode of the battery cell 50 in the other box body 10.

[0035] Preferably, the connecting part 70 is arranged as a mounting ear 71, and a mounting hole 72 is arranged on the mounting ear 71.

[0036] Of course, the present utility model is not limited to the above embodiments. Those skilled in the art can make equivalent deformations or substitutions without departing from the spirit of the present utility model, and these equivalent deformations and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A battery box facilitating series and parallel connections, characterized in that: It includes a box body (10), a cover plate (20), a plurality of first conductive components (30) and a plurality of second conductive components (40); The box body (10) is provided with a cavity (11) for accommodating the battery cell (50) and a plurality of connecting parts (70), and the connecting parts (70) are used for connecting to an external component or another box body (10); The cover plate (20) is covered on the box body (10) and closes the cavity (11); The first conductive component (30) is arranged on the outer wall of the box body (10) and at least partially extends into the cavity (11), and is used for contacting the positive or negative electrode of the battery cell (50) to form a series and / or parallel circuit; The second conductive component (40) is used for connecting the positive or negative electrodes of the battery cells (50) in different box bodies (10) to form a series and / or parallel circuit.

2. The battery box facilitating series and parallel connection according to claim 1, wherein: The first conductive component (30) includes a first conductive sheet (31), a conductive bolt (32) and a limit nut (33). The conductive bolt (32) passes through the box body (10) from the inside to the outside, and the limit nut (33) is threadedly connected to the conductive bolt (32) and abuts against the outside of the box body (10). One end of the first conductive sheet (31) passes through the conductive bolt (32) and is clamped between the limit nut (33) and the box body (10), and the other end of the first conductive sheet (31) passes through another conductive bolt (32) and is clamped between another limit nut (33) and another box body (10).

3. A battery box facilitating series and parallel connections according to claim 1, characterized in that: The first conductive component (30) is movably arranged on the box body (10), and further includes an elastic member (60) arranged between the first conductive component (30) and the inner side wall of the box body (10), and the elastic member (60) is used for pushing the first conductive component (30) into close contact with the positive or negative electrode of the battery cell (50).

4. The battery box facilitating series and parallel connection according to claim 3, wherein: The elastic member (60) is arranged as a helical spring.

5. The battery box facilitating series and parallel connection according to claim 1, wherein: The second conductive component (40) includes a second conductive sheet (41), a third conductive sheet and a wire (42). The second conductive sheet (41) is connected to one end of the wire (42), the third conductive sheet is connected to the other end of the wire (42), the second conductive sheet (41) is connected to the positive or negative electrode of the battery cell (50) in one of the box bodies (10), and the third conductive sheet is connected to the positive or negative electrode of the battery cell (50) in another box body (10).

6. The battery box facilitating series and parallel connection according to claim 1, characterized in that: The connecting part (70) is arranged as a mounting ear (71), and the mounting ear (71) is provided with a mounting hole (72).

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