A battery housing with built-in pole

Abstract

The utility model discloses a battery shell with built-in poles, including a first shell and a second shell, wherein the first shell is connected with a first outer pole, which is movably connected with a first inner pole; the second shell is connected with a second outer pole, which is movably connected with a second inner pole. The utility model movably connects the inner pole through the outer pole; the inner pole and the outer pole are designed separately, and when different types of battery shells are produced, the specifications of the outer poles are relatively uniform, and only the specifications of the inner poles need to be adjusted. By referring to the built-in bolt pole structure, the size of the external bolt pole does not need to be repeatedly molded due to different battery sizes, which greatly reduces the cost of production; in addition, the external bolt pole does not need to be punched inward with a large diameter, so as to avoid the battery shell's mechanical strength being reduced due to the large opening of the external bolt pole.

Description

Technical Field

[0001] The utility model relates to the technical field of separated pole battery shells, in particular to a battery shell with built-in poles. Background Art

[0002] At present, there is a new type of battery shell with built-in poles, which punches the battery shell into the battery to form poles, and uses them as the conductive part connecting the battery cells. A major disadvantage of this built-in pole is that the shell is relatively thin, and stamping the poles alone can easily cause deformation of the poles for large-capacity batteries. In addition, the pole is a part of the battery shell as a whole. If the pole is very wide, there will be a large gap on one side of the battery shell, which will reduce the mechanical strength of the battery shell. Depending on the size of the battery, it will also lead to multiple mold designs, increasing production costs. Utility Model Content

[0003] The utility model aims to provide a battery shell with a built-in pole, so as to solve the problems that the battery shell is easy to deform and has poor strength when the pole is built-in, and has poor versatility for multiple battery sizes.

[0004] The purpose of the utility model can be achieved by the following technical solutions: A battery housing with a built-in pole comprises a first housing and a second housing, wherein the first housing and the second housing are sealed and spliced ​​to form an integral battery housing;

[0005] The first shell is connected to a first outer pole, which is movably connected to a first inner pole; the second shell is connected to a second outer pole, which is movably connected to a second inner pole.

[0006] Optionally, the first shell and the second shell are sealed and spliced ​​by hot-melt welding through a sealing ring to form an integral battery shell.

[0007] Optionally, the sealing ring is made of rubber, polyurethane, polytetrafluoroethylene or plastic.

[0008] Optionally: the first shell and the first outer pole are stamped and formed integrally; the second shell and the second outer pole are stamped and formed integrally.

[0009] Optionally: the first outer pole is threadedly connected to the first inner pole; the second outer pole is threadedly connected to the second inner pole.

[0010] Optionally: the first outer pole is bonded to the first inner pole, and the second outer pole is bonded to the second inner pole.

[0011] Optionally, the first inner pole and the second inner pole are cylindrical or square-column-shaped in appearance.

[0012] Optionally, a liquid injection hole and an explosion-proof valve hole are provided on the first shell or the second shell.

[0013] Beneficial effects of the utility model:

[0014] The utility model flexibly connects the inner pole with the outer pole; the inner pole and the outer pole are designed to be separated. When different types of battery shells are produced, the specifications of the outer pole are relatively uniform, and only the specifications of the inner pole need to be adjusted. By referring to the built-in bolt pole structure, the size of the external bolt pole does not need to be repeatedly designed due to different battery sizes, which greatly reduces the production cost. In addition, the external bolt pole does not need to be punched inward with a large diameter, which avoids the battery shell's mechanical strength being reduced due to the large opening of the external bolt pole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of the battery housing of the utility model;

[0016] Figure 2 This is a structural schematic diagram of the inner pole of the utility model;

[0017] Figure 3 A schematic diagram of the structure of a battery housing with an inner pole according to the utility model;

[0018] Figure 4 Another structural schematic diagram of the battery housing of the utility model;

[0019] Figure 5 This is another structural schematic diagram of the inner pole of the utility model;

[0020] Figure 6 This is another structural schematic diagram of a battery housing with an inner pole according to the utility model.

[0021] 100, integral shell; 110, first shell; 120, second shell; 130, sealing ring; 140, first outer pole; 150, second outer pole; 160, first inner pole; 170, second inner pole; 180, injection hole; 190, explosion-proof valve hole. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] like Figure 1-6As shown, the utility model discloses a battery shell with a built-in pole, including: a first shell 110 and a second shell 120, the first shell 110 and the second shell 120 are sealed and spliced ​​to form an overall battery shell 100; the first shell 110 and the second shell 120 can be sealed and spliced ​​by hot-melt welding through a sealing ring 130 to form the overall battery shell 100, and the sealing ring 130 forms a strong sealing ring structure with the shell through hot-melt welding, which has good sealing performance; the material of the sealing ring 130 can be rubber, polyurethane, polytetrafluoroethylene or plastic, etc., as long as it can meet the requirements of high temperature resistance, corrosion resistance, and high mechanical strength, it can be used as the material of the sealing ring 130, and there is no limitation on this.

[0024] like Figure 1 As shown, the first shell 110 is connected to the first outer pole 140, and the second shell 120 is connected to the second outer pole 150. The shell and the outer pole can be connected by welding or the like. Preferably, the first shell 110 and the first outer pole 140 are integrally stamped and formed; the second shell 120 and the second outer pole 150 are integrally stamped and formed, so that the shell and the outer pole form a whole, which can increase the overall strength of the shell, improve the sealing, and also reduce the production process and cost.

[0025] The first outer pole 140 is movably connected to the first inner pole 160, and the second outer pole 150 is movably connected to the second inner pole 170; through the movable connection between the outer pole and the inner pole, the size of the outer pole does not need to be designed multiple times due to different battery sizes, which greatly reduces its production cost; in addition, the outer pole does not need to be punched inward with a large diameter, thus avoiding the mechanical strength of the battery shell being reduced due to the larger opening of the outer pole.

[0026] The inner pole is made of metal, and the outer shape of the inner pole can be a square column, a cylinder or a polygonal column, etc., which can be flexibly set according to needs.

[0027] Embodiment 1: Figure 1-3 As shown, the first outer pole 140 is threadedly connected to the first inner pole 160, and the second outer pole 150 is threadedly connected to the second inner pole 170. An outer thread is provided on the outer side of the outer pole, and a threaded cavity is provided on the inner side of the inner pole. The inner pole is connected to the outer pole by thread, which is convenient for the installation of the inner threaded pole and can also maintain the contact area between the inner pole and the outer pole.

[0028] Embodiment 2: Figure 4-6 As shown, the first outer pole 140 is bonded to the first inner pole 160, and the second outer pole 150 is bonded to the second inner pole 170. A smooth surface is formed on the outer side of the outer pole, and a cavity corresponding to the outer pole is opened on the inner side of the inner pole. The outer pole can be connected by bonding the inner pole so that the outer pole and the inner pole become one. The outer pole adopts this structure to facilitate the stamping and forming of the outer pole and the shell, which is convenient for production and processing.

[0029] The connection between the outer pole and the inner pole is not limited to the above-mentioned threaded connection or bonding form. For example, the outer pole and the inner pole can be connected by clamping or welding.

[0030] Furthermore, a liquid injection hole 180 and an explosion-proof valve hole 190 are provided on the first shell 110 or the second shell 120 , which is more conducive to the production and use of the battery.

[0031] Principle of the utility model: The utility model forms an integral shell 100 by sealing and splicing a first shell 110 and a second shell 120. The first shell 110 and the second shell 120 can be integrally formed with the outer pole by stamping, which can better maintain the shell strength; the outer pole is movably connected to the inner pole, and the size specifications of the outer pole are relatively uniform, and there is no need to design the mold multiple times due to different battery sizes, which reduces the production cost. The outer pole does not need to be stamped inward with a large diameter, thus avoiding the reduction of the mechanical strength of the battery shell due to the large opening of the external bolt pole.

[0032] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0033] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

Claims

1. A battery housing with a built-in pole, characterized in that: include: A first shell (110) and a second shell (120), wherein the first shell (110) and the second shell (120) are sealed and spliced ​​to form an integral battery shell (100); The first shell (110) is connected to a first outer pole (140), and the first outer pole (140) is movably connected to a first inner pole (160); The second shell (120) is connected to a second outer pole (150), and the second outer pole (150) is movably connected to a second inner pole (170).

2. A battery housing with built-in poles according to claim 1, characterized in that: The first shell (110) and the second shell (120) are sealed and spliced ​​together by hot-melt welding via a sealing ring (130) to form an integral battery shell (100).

3. A battery housing with built-in poles according to claim 2, characterized in that: The sealing ring (130) is made of rubber, polyurethane, polytetrafluoroethylene or plastic.

4. A battery housing with built-in poles according to claim 1, characterized in that: The first shell (110) and the first outer pole (140) are integrally stamped and formed; and the second shell (120) and the second outer pole (150) are integrally stamped and formed.

5. A battery housing with built-in poles according to claim 1, characterized in that: The first outer pole (140) is threadedly connected to the first inner pole (160); and the second outer pole (150) is threadedly connected to the second inner pole (170).

6. A battery housing with built-in poles according to claim 1, characterized in that: The first outer pole (140) is bonded to the first inner pole (160), and the second outer pole (150) is bonded to the second inner pole (170).

7. A battery housing with built-in poles according to claim 1, characterized in that: The first inner pole (160) and the second inner pole (170) are cylindrical or square in shape.

8. A battery casing with built-in poles according to claim 1, characterized in that: The first shell (110) or the second shell (120) is provided with a liquid injection hole (180) and an explosion-proof valve hole (190).

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