Battery box with physical reverse connection prevention function

Abstract

The utility model discloses a battery box with a physical reverse connection prevention function. The battery box comprises a box body, a battery cell and a plurality of support pillars, a positive electrode conductive assembly and a negative electrode conductive assembly are respectively arranged on two opposite inner side walls of the box body; a plurality of receding grooves are formed in the positive electrode of the battery cell; the top column is arranged at the position of the anode conductive assembly; the top column can be inserted into the clearance groove when the positive electrode of the battery cell is opposite to the positive electrode conductive assembly, so that the positive electrode of the battery cell is in contact with the positive electrode conductive assembly; or the jacking column can abut against the negative electrode of the battery cell when the negative electrode of the battery cell is opposite to the positive electrode conductive assembly, so that the negative electrode of the battery cell is separated from the positive electrode conductive assembly; by means of the structure, loop conduction is not affected when the battery cell is correctly installed, the negative electrode of the battery cell is pushed to be separated from the positive electrode conductive assembly through the jacking column when the battery cell is reversely connected, then the loop is cut off, physical reverse connection prevention is achieved, and very good practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the field of batteries, and particularly relates to a battery box with a physical reverse connection prevention function. 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 at the two ends of the battery respectively, such as batteries of 32XXX and 33XXX specifications. Common models include Zhongbi New Energy 32140FS series, Mianyang Lithium Source New Energy LY32140 series, Taizhou Jiashikai I FR32140 series, etc. These battery boxes generally do not have a reverse connection prevention device or use an electronic reverse connection protection circuit, and it is easy to have the operation of reverse connection of the battery, which may cause damage to the equipment and even pose a danger. Therefore, there is an urgent need for a battery box with a physical reverse connection prevention function to solve the above problems. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a battery box with a physical reverse connection prevention function.

[0004] An embodiment of the utility model adopts the following technical solution to solve its technical problems: A battery box with a physical reverse connection prevention function includes a box body, a battery cell, and several top columns.

[0005] Positive and negative conductive components are respectively arranged on two opposite inner side walls of the box body.

[0006] Several clearance grooves are arranged at the positive electrode of the battery cell.

[0007] The top columns are arranged at the location where the positive conductive component is located.

[0008] When the positive electrode of the battery cell faces the positive conductive component, the top columns can be inserted into the clearance grooves to make the positive electrode of the battery cell contact with the positive conductive component; or when the negative electrode of the battery cell faces the positive conductive component, the top columns can abut against the negative electrode of the battery cell to separate the negative electrode of the battery cell from the positive conductive component.

[0009] As one of the preferred embodiments of the utility model, several through grooves for the positive and negative conductive components to pass through are arranged on the box body, and several top columns are evenly arranged around the circumference of the through grooves.

[0010] As one of the preferred embodiments of the utility model, the top columns and the box body are integrally injection-molded.

[0011] As one of the preferred embodiments of the utility model, the outer side wall of the positive electrode of the battery cell is recessed inward to form the clearance grooves.

[0012] As one of the preferred embodiments of the present utility model, the positive electrode conductive assembly includes a conductive bolt, a limit nut, and a mounting nut. The conductive bolt passes through the box body from the inside outwards. The limit nut is threadedly connected to the conductive bolt and abuts against the outer wall of the box body. The mounting nut is threadedly connected to the conductive bolt and is located outside the limit nut. The conductive member passes through the conductive bolt and is clamped between the limit nut and the mounting nut.

[0013] As one of the preferred embodiments of the present utility model, the negative electrode conductive assembly is movably arranged on the box body, and further includes an elastic member arranged between the negative electrode conductive assembly and the inner side wall of the box body. The elastic member is used to push against the negative electrode conductive assembly to be in close contact with the negative electrode of the battery cell.

[0014] As one of the preferred embodiments of the present utility model, the elastic member is arranged as a helical spring.

[0015] The beneficial effects of the present utility model: A battery box with a physical reverse connection prevention function includes a box body, a battery cell, and a plurality of top columns. Positive electrode conductive assemblies and negative electrode conductive assemblies are respectively arranged on two opposite inner side walls of the box body. A plurality of clearance grooves are arranged on the positive electrode of the battery cell. The top columns are arranged at the location of the positive electrode conductive assembly. The top columns can be inserted into the clearance grooves when the positive electrode of the battery cell faces the positive electrode conductive assembly, so that the positive electrode of the battery cell is in contact with the positive electrode conductive assembly; or the top columns can abut against the negative electrode of the battery cell when the negative electrode of the battery cell faces the positive electrode conductive assembly, so that the negative electrode of the battery cell is separated from the positive electrode conductive assembly. Through the above structure, the loop conduction can be not affected when the battery cell is correctly installed, and when the battery cell is reversely connected, the negative electrode of the battery cell is pushed by the top columns to be separated from the positive electrode conductive assembly, thereby cutting off the loop, realizing physical reverse connection prevention, and having very good practicability. 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 following description of the embodiments in conjunction with the accompanying drawings, where:

[0017] Figure 1 is a schematic structural diagram of a battery box with a physical reverse connection prevention function;

[0018] Figure 2 is an exploded view of a battery box with a physical reverse connection prevention function;

[0019] Figure 3 is a schematic structural diagram of the box body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The function of the accompanying 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 utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.

[0021] In the description of the present utility model, the meaning of "a plurality" is more than two. Understandings such as "greater than", "less than", and "exceeding" do not include the present number, and understandings such as "above", "below", and "within" include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be construed 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.

[0022] In the description of the present utility model, it should be understood that when it comes to orientation descriptions, such as "upper", "lower", "front", "rear", "left", "right", etc., the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present utility model.

[0023] In the present utility model, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense. For example, it can be directly connected, or indirectly connected through an intermediate medium; it can be fixedly connected, or detachably connected, or integrally formed; it can be mechanically connected; it can be the communication inside two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0024] Refer to Figures 1 to 3 , a battery box with a physical anti-reverse connection function, including a box body 10, a battery cell 20, and a plurality of top columns 30;

[0025] On two opposite inner side walls of the box body 10, a positive electrode conductive component 40 and a negative electrode conductive component 50 are respectively provided;

[0026] A plurality of clearance grooves 60 are provided on the positive electrode 21 of the battery cell 20;

[0027] The top columns 30 are arranged at the location where the positive electrode conductive component 40 is located;

[0028] The top post 30 can be inserted into the clearance groove 60 when the positive electrode 21 of the battery cell 20 faces the positive electrode conductive component 40, so that the positive electrode 21 of the battery cell 20 contacts the positive electrode conductive component 40; or the top post 30 can abut against the negative electrode 22 of the battery cell 20 when the negative electrode 22 of the battery cell 20 faces the positive electrode conductive component 40, so that the negative electrode 22 of the battery cell 20 is separated from the positive electrode conductive component 40.

[0029] In the present utility model, taking the assembly of the positive electrode conductive component 40 as an example for illustration, in one embodiment, a plurality of through grooves 11 for the positive electrode conductive component 40 and the negative electrode conductive component 50 to pass through are provided on the box body 10. A plurality of top posts 30 are evenly arranged around the circumference of the through groove 11. The positive electrode conductive component 40 includes a conductive bolt 41, a limiting nut 42 and a mounting nut 43. The conductive bolt 41 passes through the box body 10 from the inside to the outside. The limiting nut 42 is threadedly connected to the conductive bolt 41 and abuts against the outer wall of the box body 10. The mounting nut 43 is threadedly connected to the conductive bolt 41 and is located outside the limiting nut 42. The conductive member passes through the conductive bolt 41 and is clamped between the limiting nut 42 and the mounting nut 43.

[0030] Specifically, during assembly, first pass the conductive bolt 41 through the through groove 11 from the inside to the outside, so that the head of the conductive bolt 41 is inside the box body 10 and the rod portion extends outside the box body 10. Then thread the limiting nut 42 onto the conductive bolt 41, so that the conductive bolt 41 is limited on the box body 10. According to the wiring requirements, insert the crimping terminal on the conductive wire through the rod portion of the conductive bolt 41 and abut it against the limiting nut 42. Then thread the mounting nut 43 onto the conductive bolt 41 and abut it against the crimping terminal on the conductive wire, realizing a firm connection between the external device and the positive electrode conductive component 40. It should be noted that the structure of the negative electrode conductive component 50 is the same as that of the positive electrode conductive component 40, and will not be elaborated here.

[0031] In another embodiment, when the battery cell 20 is correctly installed, that is, when the positive electrode 21 of the battery cell 20 faces the positive electrode conductive component 40, since the ejector pins 30 on the peripheral side of the positive electrode conductive component 40 are arranged opposite to the clearance grooves 60 on the positive electrode 21 of the battery cell 20, the ejector pins 30 can extend into the clearance grooves 60, so that the positive electrode 21 of the battery cell 20 and the positive electrode conductive component 40 can be in normal contact to achieve loop conduction; when the battery cell 20 is reversely installed, that is, when the negative electrode 22 of the battery cell 20 faces the positive electrode conductive component 40, since there is no clearance groove 60 on the peripheral side of the negative electrode 22 of the battery cell 20, the ejector pins 30 on the peripheral side of the positive electrode conductive component 40 will abut against the negative electrode 22 of the battery cell 20, so that the negative electrode 22 of the battery cell 20 is pushed by the ejector pins 30 to be separated from the positive electrode conductive component 40, and the two cannot be in contact, realizing the cutting off of the loop; the advantage of the present utility model is that: through the above structure, the loop conduction is not affected when the battery cell is correctly installed, and when the battery cell is reversely connected, the negative electrode of the battery cell is pushed by the ejector pins to be separated from the positive electrode conductive component, thereby cutting off the loop, realizing physical anti-reverse connection, and having very good practicability.

[0032] In one embodiment, the ejector pins 30 are integrally injection-molded with the box body 10.

[0033] Preferably, the outer side wall of the positive electrode 21 of the battery cell 20 is recessed inward to form the clearance groove 60.

[0034] In another embodiment, the negative electrode conductive component 50 is movably arranged on the box body 10, and further includes an elastic member 70 arranged between the negative electrode conductive component 50 and the inner side wall of the box body 10. The elastic member 70 is used to push against the negative electrode conductive component 50 to be in close contact with the negative electrode 22 of the battery cell 20; as a preferred embodiment of the elastic member 70, the elastic member 70 is arranged as a helical spring; it can apply a thrust force towards the battery cell 20 to the negative electrode conductive component 50, so that the connection between the negative electrode conductive component 50 and the battery cell 20 is more stable.

[0035] 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 with a physical reverse connection prevention function, characterized in that: It includes a box body (10), a battery cell (20), and a plurality of top columns (30); On two opposite inner side walls of the box body (10), a positive electrode conductive component (40) and a negative electrode conductive component (50) are respectively arranged; A plurality of clearance grooves (60) are arranged on the positive electrode (21) of the battery cell (20); The top columns (30) are arranged at the position where the positive electrode conductive component (40) is located; When the positive electrode (21) of the battery cell (20) faces the positive electrode conductive component (40), the top columns (30) can be inserted into the clearance grooves (60) so that the positive electrode (21) of the battery cell (20) contacts the positive electrode conductive component (40); or when the negative electrode (22) of the battery cell (20) faces the positive electrode conductive component (40), the top columns (30) can abut against the negative electrode (22) of the battery cell (20) so that the negative electrode (22) of the battery cell (20) is separated from the positive electrode conductive component (40).

2. The battery box with a physical reverse connection prevention function according to claim 1, wherein: A plurality of through grooves (11) through which the positive electrode conductive component (40) and the negative electrode conductive component (50) can pass are arranged on the box body (10), and the plurality of top columns (30) are uniformly arranged around the circumferential side of the through grooves (11).

3. A battery box with a physical reverse connection prevention function according to claim 1, characterized in that: The top columns (30) and the box body (10) are integrally injection-molded.

4. A battery case with a physical reverse connection prevention function according to claim 1, characterized in that: The outer side wall of the positive electrode (21) of the battery cell (20) is recessed inward to form the clearance grooves (60).

5. A battery case with a physical reverse connection prevention function according to claim 1, characterized in that: The positive electrode conductive component (40) includes a conductive bolt (41), a limit nut (42), and a mounting nut (43). The conductive bolt (41) passes through the box body (10) from the inside to the outside. The limit nut (42) is threadedly connected to the conductive bolt (41) and abuts against the outer wall of the box body (10). The mounting nut (43) is threadedly connected to the conductive bolt (41) and is located outside the limit nut (42). A conductive member passes through the conductive bolt (41) and is clamped between the limit nut (42) and the mounting nut (43).

6. The battery box with a physical reverse connection prevention function according to claim 1, characterized in that: The negative electrode conductive component (50) is movably arranged on the box body (10), and further includes an elastic member (70) arranged between the negative electrode conductive component (50) and the inner side wall of the box body (10). The elastic member (70) is used to push the negative electrode conductive component (50) into close contact with the negative electrode (22) of the battery cell (20).

7. The battery box with a physical reverse connection prevention function according to claim 6, characterized in that: The elastic member (70) is arranged as a helical spring.

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