New energy battery structure

Abstract

The utility model discloses a new energy battery structure, which comprises a battery end cover and a battery shell, the battery end cover is provided with a positive pole and a liquid injection hole, the top end and the bottom end inside the battery shell are respectively provided with a current collecting piece, and the current collecting pieces are fixedly connected with a top support arranged at the bottom of the battery end cover. An anti-explosion valve is arranged on the end face of the battery end cover, the bottom end of the battery shell is integrally formed, a current collecting piece at the bottom of the battery shell is fixedly connected with the bottom end in the battery shell, and the bottom of the battery shell is not convex or concave and is flat. The bottom of the battery shell is flat, the battery shell and the shell are integrally formed, the battery shell and the current collecting piece are directly fixed through welding, the bottom of the battery shell does not need a sealing ring, the sealing performance of the bottom is good, the manufacturing process is simplified, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technical field especially relates to a new energy battery structure. BACKGROUND

[0002] New energy battery is used for supplying power to vehicles or other products, the existing cylindrical battery is provided with positive and negative poles, and a current collector plate is arranged at the positive and negative pole positions in the battery.

[0003] In the existing cylindrical battery production process, the positive and negative pole ends are separated before machining, the battery negative pole end is provided with an explosion-proof valve, the inner wall is provided with a support, the current collector plate of the negative pole is fixed on the support through welding, and a sealing ring needs to be arranged at the connection between the positive and negative pole ends of the battery and the battery shell, so that the production process is complicated. SUMMARY

[0004] Therefore, it is necessary to provide a new energy battery structure aiming at the problem of complicated processing of the existing new energy battery.

[0005] To achieve the above object, the utility model provides the following technical scheme: a new energy battery structure, comprising a battery end cover and a battery shell, the battery end cover is provided with a positive pole column and a liquid injection hole, the inside top end and bottom end of the battery shell are respectively provided with a current collector plate, and the current collector plate is fixedly connected with a top support arranged at the bottom of the battery end cover.

[0006] The battery end cover end face is provided with an explosion-proof valve, the battery shell bottom end is integrally formed, the current collector plate at the bottom of the battery shell is fixedly connected with the inside bottom end of the battery shell, and the bottom of the battery shell is flat without convex and concave.

[0007] By arranging the explosion-proof valve and the liquid injection hole at the positive pole end and integrally forming the bottom of the negative pole end of the battery shell, the number of sealing rings is reduced, and the structure is simple.

[0008] In a preferred example, the utility model can be further configured as: the inside bottom end of the battery shell is provided with a second welding point, and the current collector plate is welded through the second welding point and fixedly connected with the inside bottom end of the battery shell.

[0009] The bottom of the battery shell is the negative pole end, and by adopting the above technical scheme, the current collector plate of the negative pole end can be directly welded on the negative pole end without the need of arranging a sealing ring.

[0010] In a preferred example, the utility model can be further configured as: a sealing ring is arranged at the connection between the battery end cover and the top of the battery shell.

[0011] In summary, the utility model has at least one of the following beneficial technical effects:

[0012] The battery shell bottom is flat, is integrally formed with the shell, is directly fixed with the current collector plate through welding, the battery shell bottom does not need sealing ring, the bottom sealing performance is good, and the manufacturing process is simplified, and production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] The accompanying drawings are used to provide further understanding of the utility model, and constitute a part of the specification, are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model, in the drawings:

[0014] Figure 1 It is the structural schematic diagram of the utility model;

[0015] Figure 2 It is the structural schematic diagram of the battery end cover in the utility model;

[0016] Figure 3 It is the internal structure schematic diagram of the battery shell of the utility model;

[0017] Figure 4 It is the bottom structure schematic diagram of the battery shell in the utility model.

[0018] In the drawings:

[0019] 1, battery end cover;11, positive pole;12, liquid injection hole;13, explosion-proof valve;14, top support;15, sealing ring;2, battery shell;3, first current collector plate;31, first welding point;4, second current collector plate;41, second welding point. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0021] In Figures 1-4 In the embodiment shown, the utility model provides a technical scheme: a new energy battery structure, comprising battery end cover 1 and battery shell 2, battery end cover 1 is equipped with positive pole 11, liquid injection hole 12, battery shell 2 inside top end and bottom end are equipped with current collector plate respectively, and current collector plate is divided into first current collector plate 3 and second current collector plate 4, battery end cover 1 bottom is equipped with first welding point 31, and first current collector plate 3 is fixedly connected with the top support 14 equipped with the bottom of battery end cover 1 through first welding point 31.

[0022] In practical application, compared with the existing battery, the battery end cover 1 end face is provided with the explosion-proof valve 13, the battery shell 2 bottom end is integrally formed, is flat, the second welding point 41 is arranged at the inside bottom end of the battery shell 2, and the second current collector 4 is welded through the second welding point 41 and fixedly connected with the inside bottom end of the battery shell 2.

[0023] The connecting part of the battery end cover 1 and the top of the battery shell 2 is provided with the sealing ring 15.

[0024] In the battery production process of the utility model, the bottom sheet (i.e. negative sheet) of the bottom of the battery shell 2 is sealed and welded with the bottom of the battery shell 2 around, forming a whole, and then the second current collector 4 is welded on the bottom sheet inside the battery shell 2 through the second welding point 41, which can be realized by mechanical equipment, reduces the processing steps of the bottom of the battery, and has good sealing performance at the bottom without the sealing ring.

[0025] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A new energy battery structure, comprising a battery end cap (1) and a battery casing (2), wherein the battery end cap (1) is provided with a positive electrode post (11) and a liquid injection hole (12), and the battery casing (2) is provided with current collectors at the top and bottom, respectively, and the current collectors are fixedly connected to a top bracket (14) provided at the bottom of the battery end cap (1), characterized in that: The battery end cap (1) is provided with an explosion-proof valve (13) on its end face. The bottom of the battery shell (2) is integrally formed, and the current collector at the bottom of the battery shell (2) is fixedly connected to the bottom of the inside of the battery shell (2).

2. The new energy battery structure according to claim 1, characterized in that: The battery casing (2) has a second welding point (41) at the bottom inside. The current collector is welded through the second welding point (41) and fixedly connected to the bottom inside of the battery casing (2).

3. The new energy battery structure according to claim 1, characterized in that: A sealing ring (15) is provided at the connection between the battery end cap (1) and the top of the battery casing (2).

Images