Storage battery box

Abstract

The utility model provides a storage battery box which comprises a box cover and a box body which are arranged up and down, and an installation space suitable for installing a plurality of storage battery packs is defined by the box cover and the box body; the liquid storage structure is arranged at the tops of the storage battery packs and is provided with a liquid storage groove and open holes which are formed in a bottom plate of the liquid storage groove and correspond to the jet orifices in the tops of the storage battery packs, and the edges of the open holes protrude inwards to form annular flanges higher than the bottom plate. Therefore, when one storage battery pack sprays liquid due to thermal runaway, the liquid can be stored in the liquid storage tank and is not easy to flow to other battery packs due to the blocking of the annular flange, and compared with the prior art, the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of storage batteries, in particular to a storage battery box. Background Art

[0002] The battery box is used to provide power supply for emergency lighting, maintenance power, emergency display, etc. The battery box includes a box body and multiple battery packs arranged in the box body. The inventor found in actual use that when the battery pack has thermal runaway, liquid will be sprayed outward from the opening at the top of the battery pack, and the sprayed liquid will flow to other battery packs, thereby causing other battery packs to malfunction and increasing maintenance and replacement costs. Utility Model Content

[0003] Therefore, the technical problem to be solved by the utility model is to overcome the defect of high maintenance and replacement costs of battery boxes in the prior art, thereby providing a battery box with low maintenance and replacement costs.

[0004] To this end, the utility model provides a battery box, comprising: a box cover and a box body arranged up and down, enclosing an installation space suitable for installing multiple battery packs; a liquid storage structure, arranged on the top of the multiple battery packs, which has a liquid storage groove, and an opening arranged on the bottom plate of the liquid storage groove and corresponding to the injection ports on the top of the multiple battery packs, wherein the edge of the opening bulges inwardly to form an annular flange with a height higher than that arranged on the bottom plate.

[0005] The liquid storage tank has an upper opening, and the box cover covers the upper opening.

[0006] At least one side of the liquid storage tank is provided with a smoke exhaust port.

[0007] The box body is provided with a smoke alarm arranged adjacent to the smoke exhaust port.

[0008] Insulating cotton is arranged on the outer wall of the liquid storage structure.

[0009] A PCB board and a plurality of conductive connecting pieces suitable for connecting two adjacent battery packs are arranged on the top of the battery pack. The PCB board has collecting terminals spaced apart along its length, and the collecting terminals are connected to the conductive connecting pieces.

[0010] The box body has a first flange arranged on the top thereof, and the box cover is provided with a second flange which is arranged in close contact with the first flange, and the first flange and the second flange are fixed by elastic buckles.

[0011] The elastic buckle includes a connecting piece and elastic arms located on both sides of the connecting piece and connected to the connecting piece by bending, and a slot for inserting the first flange and the second flange is formed between the two elastic arms.

[0012] The lower end surface of the first flange and the upper end surface of the second flange are both formed with positioning grooves that abut against the elastic arm.

[0013] The technical solution of the utility model has the following advantages:

[0014] 1. The battery box provided by the utility model has a liquid storage structure arranged on the top of multiple battery packs, which has a liquid storage tank and openings arranged on the bottom plate of the liquid storage tank and corresponding to the injection ports on the top of the multiple battery packs, wherein the edge of the opening is convex inward to form an annular flange with a height higher than that of the bottom plate; in this way, when one of the battery packs sprays liquid due to thermal runaway, due to the obstruction of the annular flange, the liquid will be stored in the liquid storage tank and will not easily flow to other battery packs, thereby reducing the maintenance cost compared with the prior art.

[0015] 2. The battery box provided by the utility model has a liquid storage tank with an upper opening, and the box cover covers the upper opening, which has the advantage of a simple structure.

[0016] 3. The battery box provided by the utility model has a smoke exhaust port on at least one side of the liquid storage tank, which is conducive to the rapid discharge of smoke. Furthermore, a smoke alarm is arranged in the box body adjacent to the smoke exhaust port, so as to quickly alert the maintenance personnel.

[0017] 4. The battery box provided by the utility model has a PCB board on the top of the battery pack, and a plurality of conductive connecting pieces suitable for connecting two adjacent battery packs. The PCB board has collection terminals spaced apart along its length, and the collection terminals are connected to the conductive connecting pieces. It should be noted that in the prior art, each conductive connecting piece is connected to the voltage and temperature collection module through a wire, so the wiring is relatively messy. In the present application, a PCB board is provided, and the copper foil of the PCB board replaces the wire, thereby avoiding the defect of messy wiring.

[0018] 5. The battery box provided by the utility model has a first flange arranged on the top thereof, and a second flange arranged on the box cover and fitted with the first flange. The first flange and the second flange are fixed by elastic buckles. Compared with the prior art method of fixing the box cover and the box body by multiple screws, this method is faster and more convenient to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A three-dimensional diagram of a battery box of the utility model;

[0021] Figure 2 is a cross-sectional view of a battery box;

[0022] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A;

[0023] Figure 4 for Figure 2 A schematic diagram of the enlarged structure of part B;

[0024] Figure 5 A three-dimensional diagram of the battery box after removing the box cover;

[0025] Figure 6 for Figure 5 Schematic diagram of the enlarged structure of part C.

[0026] Explanation of the accompanying drawings: 1. Box cover; 2. Box body; 3. Battery pack; 4. Liquid storage structure; 6. Liquid storage tank; 7. Bottom plate; 8. Injection port; 9. Opening; 10. Annular flange; 11. Smoke exhaust port; 12. Insulating cotton; 13. PCB board; 14. Conductive connecting piece; 15. First flange; 16. Second flange; 17. Elastic buckle; 18. Connecting piece; 19. Elastic arm; 20. Slot; 21. Positioning slot; 22. Collection terminal. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are 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 understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] Example

[0032] This embodiment provides a battery box, such as Figure 1 and Figure 2 As shown, it includes a box cover 1, a box body 2, a liquid storage structure 4 and a PCB board 13.

[0033] The box cover 1 and the box body 2 are arranged up and down, and the two enclose an installation space suitable for installing multiple battery packs 3. Figure 4 As shown, the box body 2 has a first flange 15 arranged on the top thereof, and the box cover 1 is provided with a second flange 16 which is arranged in a close fit with the first flange 15. The first flange 15 and the second flange 16 are fixed by an elastic buckle 17. The elastic buckle 17 includes a connecting piece 18, and elastic arms 19 located on both sides of the connecting piece 18 and connected to the connecting piece 18 by bending. A slot 20 for inserting the first flange 15 and the second flange 16 is formed between the two elastic arms 19, and a positioning slot 21 which abuts against the elastic arm 19 is formed on the lower end surface of the first flange 15 and the upper end surface of the second flange 16.

[0034] The liquid storage structure 4 is arranged on the top of the plurality of battery packs 3, such as Figure 3 As shown, it has a liquid storage tank 6, and an opening 9 arranged on the bottom plate 7 of the liquid storage tank 6 and corresponding to the injection ports 8 on the top of the plurality of battery packs 3, wherein the edge of the opening 9 is convex inward to form an annular flange 10 with a height higher than that of the bottom plate 7, and a smoke exhaust port 11 is arranged on one side of the length direction of the liquid storage tank 6. In this embodiment, the box cover 1 covers the upper opening, and a smoke alarm is arranged adjacent to the smoke exhaust port 11 in the box body 2. Insulating cotton 12 is arranged on the outer wall of the liquid storage structure 4.

[0035] like Figure 5 and Figure 6As shown, a PCB board 13 and a plurality of conductive connecting pieces 14 suitable for connecting two adjacent battery packs 3 are provided on the top of the battery pack 3. The PCB board 13 has collection terminals 22 spaced apart along its length, and the collection terminals 22 are connected to the conductive connecting pieces 14. It should be noted that in the prior art, each collection terminal 22 is connected to a collection module through a wire, and the collection module can be used to collect parameters such as voltage and temperature of the battery pack. In this embodiment, a PCB board is provided, and the copper foil in the PCB board replaces the wire, thereby avoiding the defect of messy wiring.

[0036] The battery box provided by the utility model has a liquid storage structure 4 arranged on the top of multiple battery packs 3, which has a liquid storage tank 6, and an opening 9 arranged on the bottom plate 7 of the liquid storage tank 6 and corresponding to the injection ports 8 on the top of the multiple battery packs 3, wherein the edge of the opening 9 bulges inward to form an annular flange 10 with a height higher than that of the bottom plate 7; in this way, when one of the battery packs 3 sprays liquid due to thermal runaway, due to the obstruction of the annular flange 10, the liquid will be stored in the liquid storage tank 6 and will not easily flow to other battery packs, thereby reducing the maintenance cost compared with the prior art.

[0037] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A battery box, characterized in that: include: The box cover (1) and the box body (2) are arranged up and down to enclose and form an installation space suitable for installing a plurality of storage battery packs (3); A liquid storage structure (4) is arranged on the top of the plurality of battery packs (3), and comprises a liquid storage groove (6), and an opening (9) arranged on the bottom plate (7) of the liquid storage groove (6) and corresponding to the injection ports (8) on the top of the plurality of battery packs (3), wherein the edge of the opening (9) is convex inwardly to form an annular flange (10) with a height higher than that of the bottom plate (7).

2. The battery box according to claim 1, characterized in that: The liquid storage tank (6) has an upper opening, and the box cover (1) covers the upper opening.

3. The battery box according to claim 1 or 2, characterized in that: At least one side of the liquid storage tank (6) is provided with a smoke exhaust port (11).

4. The battery box according to claim 3, characterized in that: The box body (2) has a smoke alarm arranged adjacent to the smoke exhaust port (11).

5. The battery box according to claim 1, characterized in that: Insulating cotton (12) is provided on the outer wall of the liquid storage structure (4).

6. The battery box according to claim 1, characterized in that: A PCB board (13) and a plurality of conductive connecting pieces (14) suitable for connecting two adjacent battery packs (3) are provided on the top of the battery pack (3); the PCB board (13) has collecting terminals (22) spaced apart along its length direction; the collecting terminals (22) are connected to the conductive connecting pieces (14).

7. The battery box according to claim 1, characterized in that: The box body (2) has a first flange (15) arranged on the top thereof, and the box cover (1) is provided with a second flange (16) which is arranged to fit the first flange (15), and the first flange (15) and the second flange (16) are fixed by an elastic buckle (17).

8. The battery box according to claim 7, characterized in that: The elastic buckle (17) comprises a connecting piece (18) and elastic arms (19) located on both sides of the connecting piece (18) and connected to the connecting piece (18) by bending, and a slot (20) for inserting the first flange (15) and the second flange (16) is formed between the two elastic arms (19).

9. The battery box according to claim 8, characterized in that: The lower end surface of the first flange (15) and the upper end surface of the second flange (16) are both formed with a positioning groove (21) that abuts against the elastic arm (19).

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