Battery bottom shell

Abstract

The utility model relates to a battery bottom case which comprises a bottom case body, a cavity is arranged in the bottom case body, an upper cavity, a heat dissipation layer and a bottom cavity are arranged in the cavity from top to bottom, a step is arranged between the heat dissipation layer and the bottom cavity, the heat dissipation layer is provided with a first heat dissipation hole and a second heat dissipation hole, and the first heat dissipation hole and the second heat dissipation hole are communicated with each other. First convex surfaces are arranged on the two sides of the bottom shell body, a first convex edge and a second convex edge are arranged at the lower end of the bottom shell body, and the heat dissipation problem is solved by arranging a heat dissipation layer used for installing a heat dissipation fan in the bottom shell body; meanwhile, a first convex surface, a first convex edge and a second convex edge are additionally arranged at a first heat dissipation hole and a second heat dissipation hole for heat dissipation so as to enhance the strength of the shell, and meanwhile, a first concave groove and a second concave groove can play a role of buckling a hand position in the carrying process, so that the shell can be better carried.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packaging, in particular to a battery bottom shell. Background Art

[0002] In the existing battery packaging technology, in addition to using metal materials as battery shell packaging, plastic materials are also used as battery shells because they can be processed and formed through injection molding, molding and other processes, and have excellent corrosion resistance and aging resistance, and are suitable for various environments. However, their density is low and their thermal conductivity is poor. When using them as the material of the battery bottom shell, the first thing to be solved is heat dissipation. However, when solving the problem of heat dissipation, the existing battery bottom shell often ignores the problem of anti-fall and shock resistance. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a battery bottom shell, which solves the technical problem that the existing battery bottom shell often ignores the problem of anti-fall and anti-vibration when solving the problem of heat dissipation.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0007] An embodiment of the utility model provides a battery bottom shell, including a bottom shell body, wherein a cavity is arranged inside the bottom shell body, wherein an upper cavity, a heat spreading layer and a bottom cavity are arranged in the cavity from top to bottom, a step is arranged between the heat dissipation layer and the bottom cavity, the heat dissipation layer is arranged with a first heat dissipation hole and a second heat dissipation hole, first convex surfaces are arranged on both sides of the bottom shell body, and a first convex edge and a second convex edge are arranged at the lower end of the bottom shell body.

[0008] Preferably, a screw hole is provided on the upper end surface of the bottom shell body.

[0009] Preferably, a mounting screw hole is provided on the step.

[0010] Preferably, the first convex surface is provided with a first groove, and the first groove is connected to the first heat dissipation hole.

[0011] Preferably, the front and rear ends of the bottom shell body are both provided with second grooves, and the second grooves are connected to the second heat dissipation holes.

[0012] Preferably, the bottom shell body is an integrally formed structure.

[0013] Preferably, the first convex edge is arranged at the lower end of the first convex surface.

[0014] (III) Beneficial effects

[0015] The beneficial effects of the utility model are as follows: the battery bottom shell of the utility model solves the problem of heat dissipation by arranging a heat dissipation layer for installing a heat dissipation fan inside the bottom shell body, and at the same time, a first convex surface and a first convex edge and a second convex edge are added at the first heat dissipation hole and the second heat dissipation hole for heat dissipation to enhance the strength of the shell, and at the same time, the inwardly concave first groove and the second groove will act as hand-gripping positions during the transportation process, which can be better carried. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the overall structure in the embodiment of the utility model;

[0017] Figure 2 It is a top view of the overall structure in an embodiment of the utility model.

[0018] [Description of Reference Numerals]

[0019] 1. Bottom shell body; 21. Cavity; 2. Upper cavity; 3. Heat dissipation layer; 4. Bottom cavity; 5. Screw hole; 6. Mounting screw hole; 7. First convex surface; 8. First heat dissipation hole; 9. First convex edge; 10. First groove; 11. Second convex edge; 12. Second groove; 13. Step; 14. Second heat dissipation hole. DETAILED DESCRIPTION

[0020] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0021] See also Figure 1 to Figure 2 The utility model provides a battery bottom shell, including a bottom shell body 1, wherein a cavity 21 is arranged inside the bottom shell body 1, and an upper cavity 2, a heat spreading layer and a bottom cavity 4 are arranged in the cavity 21 from top to bottom, a step 13 is arranged between the heat dissipation layer 3 and the bottom cavity 4, and the heat dissipation layer 3 is provided with a first heat dissipation hole 8 and a second heat dissipation hole 14, first convex surfaces 7 are arranged on both sides of the bottom shell body 1, and a first convex edge 9 and a second convex edge 11 are arranged at the lower end of the bottom shell body 1.

[0022] In the embodiment of the present disclosure, a screw hole 5 is provided on the upper end surface of the bottom shell body 1 .

[0023] In the embodiment of the present disclosure, a mounting screw hole 6 is provided on the step 13 .

[0024] In the embodiment of the present disclosure, the first convex surface 7 is provided with a first groove 10 , and the first groove 10 is communicated with the first heat dissipation hole 8 .

[0025] In the embodiment of the present disclosure, the front and rear ends of the bottom shell body 1 are both provided with second grooves 12 , and the second grooves 12 are connected to the second heat dissipation holes 14 .

[0026] In the embodiment of the present disclosure, the bottom shell body 1 is an integrally formed structure.

[0027] In the embodiment of the present disclosure, the first convex edge 9 is disposed at the lower end of the first convex surface 7 .

[0028] To summarize, the heat dissipation problem is solved by setting a heat dissipation layer for installing a heat dissipation fan inside the bottom shell body, and at the same time, a first convex surface and a first convex edge and a second convex edge are added at the first heat dissipation hole and the second heat dissipation hole to enhance the strength of the shell. At the same time, the concave first groove and the second groove will act as hand-grips during transportation, which enables better transportation.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. 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] Although the embodiments of the present invention have been shown and described above, it is understandable that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field cannot change, modify, replace or modify the above embodiments within the scope of the present invention.

Claims

1. A battery bottom shell, comprising a bottom shell body (1), characterized in that: A cavity (21) is provided inside the bottom shell body (1), and an upper cavity (2), a heat dissipation layer and a bottom cavity (4) are provided in the cavity (21) from top to bottom. A step (13) is provided between the heat dissipation layer (3) and the bottom cavity (4), and the heat dissipation layer (3) is provided with a first heat dissipation hole (8) and a second heat dissipation hole (14). First convex surfaces (7) are provided on both sides of the bottom shell body (1), and a first convex edge (9) and a second convex edge (11) are provided at the lower end of the bottom shell body (1).

2. The battery bottom shell according to claim 1, characterized in that: The upper end surface of the bottom shell body (1) is provided with a screw hole (5).

3. The battery bottom shell according to claim 1, characterized in that: The step (13) is provided with a mounting screw hole (6).

4. The battery bottom shell according to claim 1, characterized in that: The first convex surface (7) is provided with a first groove (10), and the first groove (10) is connected to the first heat dissipation hole (8).

5. The battery bottom shell according to claim 1, characterized in that: The front and rear ends of the bottom shell body (1) are both provided with second grooves (12), and the second grooves (12) are connected to the second heat dissipation holes (14).

6. The battery bottom shell according to claim 1, characterized in that: The bottom shell body (1) is an integrally formed structure.

7. The battery bottom shell according to claim 1, characterized in that: The first convex edge (9) is arranged at the lower end of the first convex surface (7).

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