CN217740702U

CN217740702U - Battery box and battery pack

Info

Publication number: CN217740702U
Application number: CN202221849969.2U
Authority: CN
Inventors: 赵冬
Original assignee: China Lithium Battery Technology Co Ltd
Current assignee: China Lithium Battery Technology Co Ltd
Priority date: 2022-07-18
Filing date: 2022-07-18
Publication date: 2022-11-04
Anticipated expiration: 2032-07-18

Abstract

The utility model discloses a battery box and battery package, the battery box includes case body and the upper cover plate of lid at the case body, through be provided with the depressed part at the edge part of upper cover plate, water stain on the upper cover plate can flow into in the depressed part preferentially, because the depressed part can be with water drainage to case side on, thereby can in time discharge water stain on the upper cover plate, avoid water stain long-time detention and corrode the upper cover plate, through staggering the opening of depressed part and the position of the electrical socket of case side, also namely the opening of depressed part is not just right with the electrical socket, make the water that flows out to the case side from the depressed part can not get into the electrical socket, thereby can effectively avoid the short circuit of electrical socket, and then effectively avoid the potential safety hazard of battery package; the battery pack with the battery box has the advantages that the concave parts are arranged, so that water flowing to the side face of the battery box cannot enter the electrical connection socket, potential safety hazards of the battery pack are effectively avoided, and normal operation of the battery pack is guaranteed.

Description

Battery box and battery pack

Technical Field

The utility model relates to a battery technology field especially relates to a battery box and battery package.

Background

The sales volume of electric automobile increases year by year, and the weather that faces when going out is complicated changeable, therefore when meeting with rainwater or moist weather, generally can gather the water droplet on the upper cover plate of battery box and form water stain, if can not in time discharge water stain, long-time water stain upper cover plate that will corrode the battery box. When the drainage of water stain on the upper cover plate with the battery box was discharged, water stain can flow along the side of battery box, because the side of battery box generally is equipped with electric socket, electric socket is used for battery package high pressure charge-discharge to use, if water stain on the battery case lid flows into electric socket along the side of battery box in, will lead to the electric connection short circuit of battery package, and then causes the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model discloses a first aim at provides a battery box, thereby this battery box has solved the water stain on its upper cover plate and has flowed to the technical problem that electrical connection socket department caused the potential safety hazard.

A second object of the utility model is to provide a battery pack, thereby it has solved the water stain on the upper cover plate of battery box and has flowed to electrical connection socket department and arouse the battery pack short circuit, causes the technical problem of potential safety hazard.

The utility model discloses a first purpose adopts following technical scheme to realize:

the battery box comprises a box body, wherein an electrical socket is arranged on the side surface of the box body; the box body is characterized by further comprising an upper cover plate, the upper cover plate covers the top of the box body, a concave part is arranged on the edge of the upper cover plate, and the opening of the concave part is staggered with the position of the electrical socket.

The utility model discloses a battery box, edge portion through last cover plate is provided with the depressed part, according to the principle that water flows toward the low, water stain on the upper cover plate can be preferentially gone toward the depressed part stream, because the depressed part can be with water drainage to case side on, and then in time discharge the water stain on the upper cover plate, avoid water stain long-time delay and corrode the upper cover plate, stagger through the opening with the depressed part and the electrical socket position of case side again, also be that the opening of depressed part is just right with the electrical socket, make the water that flows to the case side from the depressed part can not get into electrical socket department, thereby can effectively avoid the short circuit of electrical socket, and then effectively avoid the potential safety hazard of battery package. In addition, when the battery box is installed on the automobile chassis, the concave part can also avoid partial structure of the automobile chassis, and the installation of the battery box is convenient.

The utility model discloses a second purpose adopts following technical scheme to realize:

the battery pack comprises the battery box, and a battery pack formed by stacking a plurality of batteries is installed in the battery box.

The utility model discloses a battery pack, it has group battery and foretell battery box, and the group battery is installed in the battery box. The battery package is through being provided with the depressed part at the edge part of upper cover plate, according to the principle that water flows toward the low, water stain on the upper cover plate can be preferred to flow away toward the depressed part, because the depressed part can be with water drainage to the case side on, and then in time discharge the water stain on the upper cover plate, avoid water stain long-time delay and corrode the upper cover plate, stagger through the opening with the electrical socket position of depressed part and case side again, it is also just right with electrical socket that the opening of depressed part is also, avoid flowing out to the water of case side from the depressed part and get into electrical socket department, thereby can effectively avoid the connection short circuit of electrical socket, and then effectively avoid the potential safety hazard of battery package, guarantee the normal operating of battery package.

Drawings

Fig. 1 is a schematic perspective view of a battery box according to an embodiment of the present disclosure;

fig. 2 is a schematic perspective view of another perspective view of a battery box according to an embodiment of the present disclosure.

Wherein the reference numerals have the following meanings:

1-box body, 11-electrical socket;

2-upper cover plate, 21-flange edge, 22-concave part and 221-opening;

3-convex rib, 31-first convex rib and 32-second convex rib;

4-drainage groove, 41-first drainage groove, and 42-second drainage groove.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

in the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment provides a battery box, as shown in fig. 1 and fig. 2, the battery box includes a box body 1 and an upper cover plate 2, the upper cover plate 2 covers the top of the box body 1, specifically, the edge of the upper cover plate 2 is provided with a flange 21, the flange 21 and the box body 1 are sealed and fixed by a sealing element, wherein the sealing element may be a sealing gasket, a sealing ring or a sealing glue. The case body 1 is mounted with a battery pack composed of a plurality of cells stacked together. The upper cover plate 2 is sealed and arranged on the box body 1 to realize the packaging of the battery pack, and a battery pack capable of being independently charged and discharged is formed.

In order to realize the charging and discharging functions of the battery pack, the side surface of the case body 1 is provided with an electrical socket 11, and the electrical socket 11 is connected with a high voltage when the battery pack is charged and discharged, so that the short circuit of the electrical socket 11 is prevented, which is an important safety issue. Particularly, if the accumulated water on the upper cover plate 2 flows into the electric socket 11, a safety accident is further caused.

In the battery box of the embodiment, as shown in fig. 1 and 2, the edge of the upper cover plate 2 is provided with the recessed portion 22 capable of guiding water to the side surface of the box, so that water stains on the upper cover plate 2 can preferentially flow to the recessed portion 22 according to the principle that water flows to a low position, and the water stains on the upper cover plate 2 are prevented from flowing to an uncertain direction and flowing into the electric socket 11; because the depressed part 22 can drain water to the case side, and then in time discharge the water stain on upper cover plate 2, avoid water stain long-time being detained and corrode upper cover plate 2, through staggering the opening 221 of depressed part 22 and the position of the electric socket 11 of case side again, it is also that the opening 221 of depressed part 22 is not just right or not corresponding with electric socket 11, make the water that flows out to the case side from depressed part 22 can not get into electric socket 11 department, thereby can effectively avoid the short circuit of electric socket 11, and then effectively avoid the potential safety hazard of battery package. In addition, when the battery box is mounted on the chassis of the automobile, the recessed portion 22 can also avoid partial structures or components of the chassis of the automobile, so that the battery box can be mounted and fixed conveniently.

In this embodiment, as shown in fig. 1 and 2, the side of the box opposite to the opening 221 of the recess 22 and the side of the box opposite to the electrical connector 11 belong to different surfaces, and thus when water in the recess 22 flows to the side of the box opposite to the opening 221, the side of the box and the side of the box opposite to the electrical connector 11 do not belong to the same surface, and thus it is possible to further prevent the drain water in the recess 22 from flowing into the electrical connector 11. In this embodiment, as shown in fig. 1 and fig. 2, the recess 22 and the electrical socket 11 are both disposed at the left end of the box body 1, there are two recesses 22, the two recesses 22 are respectively located at two sides of the electrical socket 11, and a side surface of the box opposite to the opening 221 of the recess 22 is connected to a side surface of the box where the electrical socket 11 is located and forms an obtuse angle, so that water discharged from the recess 22 does not easily flow to the electrical socket 11, thereby avoiding a risk of short circuit. In order to make the drainage of the concave portion 22 smoother, the concave portion 22 has an opening 221 on the surface adjacent to the side surface of the tank, in this embodiment, the concave portion 22 has an opening 221, and the extension length of the opening 221 is almost equal to the length of the side surface of the tank opposite to the opening. In some embodiments, for example, the concave portion 22 is located at the corner of the upper cover plate 2, the opening 221 of the concave portion 22 spans two adjacent tank sides and is L-shaped, so that the water in the concave portion 22 can be drained and discharged through the two tank sides at the same time, and the drainage efficiency and smoothness are effectively improved.

In some embodiments, the recessed portion 22 may be provided in a plurality, and the plurality of recessed portions 22 are distributed at different edge portions of the upper cover plate 2. For example, the recesses 22 may be provided at four corners of the upper cover plate 2, or the recesses 22 may be provided at four large case sides of the upper cover plate 2. Of course, a plurality of recesses 22 may be provided on one tank side surface, depending on the actual requirements.

In some embodiments, the flange 21 of the upper cover plate 2 is hermetically connected to the upper portion of the side surface of the tank, and in order to facilitate the smooth drainage of water in the recess 22, the flange 21 facing the opening 221 is inclined outwardly and downwardly. The flange 21 facing the opening 221 is an inclined surface, which can prevent water on the flange 21 facing the opening 221 from flowing to another adjacent flange 21, and further prevent water from flowing into the electrical socket 11 through another flange 21, thereby further reducing the risk of short circuit of the electrical socket 11. In some embodiments, the two sides of the flange 21 opposite to the opening 221 are provided with protrusions, which can also prevent water stains on the flange 21 opposite to the opening 221 from flowing transversely to other flanges 21, and can also achieve the purpose of preventing water from flowing into the electrical socket 11 through other flanges 21.

In this embodiment, as shown in fig. 1 and fig. 2, the upper cover plate 2 is provided with a plurality of ribs 3, and these ribs 3 can enhance the structural strength of the upper cover plate 2, so that the upper cover plate 2 can bear a larger pressure to protect the battery assembly at the lower part of the upper cover plate 2 from bearing pressure, thereby avoiding connection failure or connection short circuit of the battery assembly. Drainage grooves 4 are formed between two adjacent convex ribs 3, and the drainage grooves 4 are communicated with the concave parts 22. The tank bottom of drainage groove 4 is the base surface of upper cover plate 2, and depressed part 22 is that the base surface undercut of upper cover plate 2 forms, and consequently the bottom of depressed part 22 is obviously less than the tank bottom of drainage groove 4, so water on the upper cover plate 2 is along with drainage groove 4 to collecting depressed part 22, and then in time discharges through depressed part 22, does not receive corrosion damage on the protection upper cover plate 2.

In some embodiments, the at least one rib 3 near the electrical patch port 11 is a first rib 31, and when there is only one first rib 31, the length of the first rib 31 extends in parallel with the side of the box where the electrical patch port 11 is located, and the first rib 31 can block water on the upper cover plate 2 from flowing to the side of the box where the electrical patch port 11 is located, so as to further protect the water on the upper cover plate 2 from flowing into the electrical patch port 11. In this embodiment, there are a plurality of first ribs 31, a first drainage groove 41 is formed between two adjacent first ribs 31, the first drainage groove 41 is communicated with the recess 22, and the length extending direction of the first drainage groove 41 is parallel to the side surface of the box where the electrical jack 11 is located. The first drainage grooves 41 drain water on the upper cover plate 2 into the recesses 22, and the first ribs 31 can prevent the water on the upper cover plate 2 from directly flowing to the side of the box where the electrical socket 11 is located, so as to further protect the water on the upper cover plate 2 from flowing into the electrical socket 11. Especially when there is a lot of water on the upper cover plate 2, the effect of the first rib 31 preventing the water on the upper cover plate 2 from directly rushing to the side of the box where the electrical patch port 11 is located is more obvious.

In this embodiment, as shown in fig. 1 and fig. 2, the rib 3 further includes a second rib 32, and a length extending direction of the second rib 32 is perpendicular to a length extending direction of the first rib 31; a second drainage groove 42 is formed between two adjacent second convex ribs 32, and the second drainage groove 42 is communicated with the concave part 22. In this embodiment, the length direction of the second rib 32 extends along the direction in which the batteries in the battery box are stacked, the length direction of the first rib 31 extends perpendicular to the direction in which the batteries in the battery box are stacked, that is, the length direction of the second drainage groove 42 extends along the direction in which the batteries in the battery box are stacked, the length direction of the first drainage groove 41 is perpendicular to the length direction of the second drainage groove 42, and the first drainage groove 41 is communicated with the second drainage groove 42. The first drainage groove 41 is located at the end of the box body 1, and the second drainage groove 42 drains water on the cover plate to the first drainage groove 41 and then to the recessed portion 22 through the first drainage groove 41. The first drainage grooves 41 mainly play a role in buffering, so that water in the second drainage grooves 42 is gradually drained into the concave portions 22, and the risk that excessive water in the second drainage grooves 42 directly flows to the side face of the box where the electrical socket 11 is located and further short circuit is caused to the electrical socket 11 is prevented.

In some embodiments, a battery pack is also disclosed, which comprises a battery pack and the battery box, wherein the battery pack is arranged in the battery box, and the battery pack is composed of a plurality of batteries which are stacked together. The battery pack is provided with the depressed part 22 through the edge part of the upper cover plate 2, according to the principle that water flows to the lower part, the water stain on the upper cover plate 2 can preferentially flow to the depressed part 22, because the depressed part 22 can guide the water to the side surface of the box, and then the water stain on the upper cover plate 2 is timely discharged, the upper cover plate 2 is prevented from being corroded due to the long-time retention of the water stain, the position of the opening 221 of the depressed part 22 and the position of the electrical socket 11 on the side surface of the box are staggered, namely the opening 221 of the depressed part 22 is not right opposite to the electrical socket 11, the water flowing out of the depressed part 22 to the side surface of the box is prevented from entering the electrical socket 11, so that the short circuit of the electrical socket 11 can be effectively avoided, the potential safety hazard of the battery pack is effectively avoided, and the normal operation of the battery pack is ensured.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims

1. A battery box, comprising:

the box comprises a box body (1), wherein an electrical socket (11) is arranged on the side surface of the box body (1);

the box comprises an upper cover plate (2), the upper cover plate (2) is arranged at the top of the box body (1) in a covering mode, a concave part (22) is arranged on the edge portion of the upper cover plate (2), and an opening (221) of the concave part (22) is staggered with the electrical socket (11).

2. Battery box according to claim 1, characterized in that the side of the box opposite the opening (221) of the recess (22) is of a different face than the side of the box where the electrical socket (11) is located.

3. The battery box according to claim 1, characterized in that the depressed part (22) is provided in plurality, and the depressed parts (22) are distributed at different edge parts of the upper cover plate (2).

4. A battery box according to any of claims 1-3, characterized in that the openings (221) are provided in the sides of the recess (22) adjacent to the sides of the box.

5. The battery box according to claim 4, characterized in that the side edge of the upper cover plate (2) is provided with a flange edge (21), and the flange edge (21) opposite to the opening (221) is an outward and downward inclined surface.

6. A battery box according to claim 4, characterized in that the side edge of the upper cover plate (2) is provided with a flange edge (21), and the two sides of the flange edge (21) opposite to the opening (221) are provided with protrusions to block water stains from flowing to the other flange edges (21).

7. The battery box according to any one of claims 1-3, characterized in that the upper cover plate (2) is provided with a plurality of ribs (3), a drainage groove (4) is formed between two adjacent ribs (3), and the drainage groove (4) is communicated with the recess (22).

8. Battery box according to claim 7, characterised in that at least one of the ribs (3) close to the electrical socket (11) is a first rib (31), the first rib (31) having a length extending in a direction parallel to the side of the box where the electrical socket (11) is located.

9. The battery box according to claim 8, wherein the first ribs (31) are provided in a plurality, a first drainage groove (41) is formed between two adjacent first ribs (31), and the first drainage groove (41) is communicated with the recess (22); the length extension direction of the first drainage groove (41) is parallel to the side face of the box where the electric plug socket (11) is positioned.

10. A battery box according to claim 8 or 9, characterized in that the ribs (3) comprise second ribs (32), the second ribs (32) having a length extending in a direction perpendicular to the length extending direction of the first ribs (31); a second drainage groove (42) is formed between every two adjacent second convex ribs (32), and the second drainage groove (42) is communicated with the concave part (22).

11. The battery case according to claim 10, wherein the second bead (32) has a length direction extending in the direction in which the batteries are stacked in the case body (1), and the first bead (31) has a length direction extending perpendicular to the direction in which the batteries are stacked in the case body (1).

12. A battery box according to any of claims 1-3, characterized in that the recess (22) and the electrical socket (11) are both provided at one end of the box body (1), the recess (22) being provided on both sides of the electrical socket (11).

13. A battery pack comprising the battery case according to any one of claims 1 to 12, wherein a battery pack in which a plurality of batteries are stacked is mounted.