Battery case structure and battery module thereof

Abstract

The utility model relates to a kind of battery box structure and its battery module in battery module technical field, including box body, the inside of box body is equipped with several installation inner cavity for installing battery, installation inner cavity is towards the front end surface and top end surface of box body distribution opening is equipped with embedding opening and connecting opening, the lower edge of embedding opening is equipped with two inwardly extending grooves, two grooves are deformable elastic tendon between, the end of elastic tendon is equipped with limit protruding buckle, the two sides of connecting opening are limit rim that inwardly extending setting, the stability of battery in the box body is guaranteed, simultaneously through involute formation breakable avoidance gap, when battery is mutually and connected in series, connecting pole piece can be inlayed in through avoidance gap, the space occupied by connecting pole piece is reduced, so that the overall structure of battery module is realized reduction, while ensuring that its electric capacity maintains unchanged.

Description

Technical Field

[0001] This utility model relates to the field of battery module technology, and in particular to a battery housing structure and its battery module. Background Technology

[0002] With the increasing development of new energy vehicles, in order to meet the energy and voltage requirements of electric vehicles, their power battery systems consist of one or more battery packs. Generally speaking, each battery pack consists of several battery modules, and each battery module consists of several individual cells. Typically, several individual cells are connected in series and parallel to form a battery module, and then multiple batteries are integrated using a battery module frame to form a complete battery module.

[0003] Existing battery module frames are designed to save internal space, thereby increasing battery module capacity. However, with the development of new energy vehicles, there is a need to reduce the overall structure of existing battery packs while maintaining the same capacity. Therefore, there is an urgent need to develop a battery housing structure and its battery module to meet practical application requirements. Utility Model Content

[0004] The purpose of this invention is to provide a battery housing structure and its battery module to solve the above-mentioned defects.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A battery housing structure includes a housing body. The housing body has several mounting cavities for installing batteries. The mounting cavities have embedding openings and connecting openings distributed on the front and top surfaces of the housing body. The lower edge of the embedding opening has two inwardly extending slots. Between the two slots is a deformable elastic rib. The end of the elastic rib is provided with a limiting protrusion. Both sides of the connecting opening are limiting edges that extend inward.

[0007] In the above description, as a further solution, a partition is provided between two adjacent installation cavities, and the limiting edge is horizontally set on the upper edge of the partition. Several involutes are provided in the middle of the limiting edge, and the limiting edge can form a breakable structure through the involutes.

[0008] As a further embodiment of the above description, the front end face of the limiting protrusion is an upwardly inclined ramp, with the high end of the ramp being greater than the bottom end face of the mounting cavity.

[0009] As a further embodiment of the above description, a threaded hole is provided in the middle of the inclined platform. The threaded hole is horizontally oriented and has a fastening bolt inside. One end of the fastening bolt can be rotatably extended into the interior of the mounting cavity.

[0010] As a further solution, as described above, the rear end face of the box body is provided with an exit notch, which is located at the top of the box body.

[0011] A battery module includes the aforementioned housing body, a plurality of batteries, and connecting electrodes. The plurality of batteries are sequentially embedded in corresponding mounting cavities, with the limiting edge broken at the middle by an involute line to form a clearance notch. The two ends of the connecting electrodes are electrically connected to the terminals of two adjacent batteries, and the middle part of the connecting electrodes is embedded inside the clearance notch.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By providing deformable elastic ribs and limiting edges at the embedding opening and connecting opening of the housing body, the battery is limited, ensuring the stability of the battery within the housing body. At the same time, the involute curve forms a breakable clearance notch, which allows the connecting electrode to be embedded when the batteries are connected in parallel or series, reducing the space occupied by the connecting electrode and thus reducing the overall structure of the battery module while maintaining its capacity. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a battery housing structure as described in this embodiment;

[0014] Figure 2 This is a rear view schematic diagram of a battery housing structure described in this embodiment;

[0015] Figure 3 for Figure 1 A magnified schematic diagram of the structure of part A in the diagram;

[0016] Figure 4 This is a cross-sectional view of a battery housing structure as described in this embodiment;

[0017] Figure 5 This is a schematic diagram of the structure of a battery module described in this embodiment;

[0018] In the diagram: 1-Box body, 11-Baffle, 111-Limiting edge, 112-Involute, 12-Clearing notch, 21-Embedding opening, 22-Connecting opening, 3-Installation cavity, 4-Limiting buckle, 41-Sloping platform, 42-Threaded hole, 43-Fasting bolt, 5-Slot, 51-Elastic rib, 6-Retraction notch, 7-Battery, 8-Connecting electrode. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] For this embodiment, please refer to Figures 1-5The specific implementation of the battery housing structure includes a housing body 1. The housing body 1 has several mounting cavities 3 for mounting batteries 7. The mounting cavities 3 have embedding openings 21 and connecting openings 22 distributed on the front and top surfaces of the housing body 1. The lower edge of the embedding opening 21 has two inwardly extending slots 5. Between the two slots 5 is a deformable elastic rib 51. The end of the elastic rib 51 is provided with a limiting protrusion 4. Both sides of the connecting opening 22 are limiting edges 111 extending inward. A partition 11 is between two adjacent mounting cavities 3. The limiting edges 111 are horizontally arranged on the upper edge of the partition 11. Several involutes 112 are provided in the middle of the limiting edges 111. The limiting edges 111 can form a breakable structure through the involutes 112. The rear end surface of the housing body 1 has an exit notch 6. The exit notch 6 is provided at the top of the housing body 1.

[0021] The battery 7 is positioned by means of the elastic ribs 51 and the limiting edge 111 at the embedding opening 21 and the connecting opening 22 of the housing body 1, which limit the battery 7 and ensure the stability of the battery 7 within the housing body 1.

[0022] Specific examples Figure 3 As shown, the front end face of the limiting protrusion 4 is an upwardly inclined ramp 41, and the high end of the ramp 41 is greater than the bottom end face of the mounting cavity 3. Furthermore, in a further embodiment, such as... Figure 4 As shown, a threaded hole 42 is provided in the middle of the inclined platform 41. The threaded hole 42 is horizontally oriented and a fastening bolt 43 is provided inside the threaded hole 42. One end of the fastening bolt 43 can be rotatably extended into the interior of the mounting cavity 3.

[0023] A battery module 7 includes a housing body 1, several batteries 7, and connecting electrode plates 8. The batteries 7 are sequentially embedded in corresponding mounting cavities 3. The limiting edge 111 is broken at the middle by an involute 112 to form a clearance notch 12. The two ends of the connecting electrode plate 8 are electrically connected to the terminals of two adjacent batteries 7, and the middle part of the connecting electrode plate 8 is embedded inside the clearance notch 12. By forming a breakable clearance notch 12 by the involute 112, when the batteries 7 are connected in parallel or series, the clearance notch 12 can embed the connecting electrode plate 8, reducing the space occupied by the connecting electrode plate 8, thereby reducing the overall structure of the battery module 7 while maintaining its capacity.

[0024] An installation process for a battery module: Several batteries 7 are embedded into the mounting cavity 3 along the insertion opening 21. The batteries 7 can abut against the limiting protrusion 4 along the inclined platform 41. Under the deformation of the elastic rib 51, the limiting protrusion 4 can be smoothly embedded into the mounting cavity 3. At the same time, by screwing and fastening the bolt 43, one end of the fastening bolt 43 can be rotated and extended into the interior of the mounting cavity 3 to abut and lock against the side wall of the battery 7. Then, a breakable clearance notch 12 is formed by the involute 112. The clearance notch 12 can embed the connecting electrode 8, reducing the space occupied by the connecting electrode 8, so that the overall structure of the battery 7 module is reduced, while ensuring that its capacity remains unchanged.

[0025] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A battery housing structure, comprising a housing body, wherein the housing body has a plurality of mounting cavities for mounting batteries, characterized in that: The mounting cavity has an embedding opening and a connecting opening distributed on the front and top surfaces of the housing body. The lower edge of the embedding opening has two inwardly extending slots, and between the two slots is a deformable elastic rib. The end of the elastic rib is provided with a limiting protrusion. Both sides of the connecting opening are limiting edges that extend inward.

2. The battery housing structure according to claim 1, characterized in that: A partition is placed between two adjacent installation cavities. The limiting edge is horizontally set on the upper edge of the partition. Several involutes are opened in the middle of the limiting edge, and the limiting edge can form a breakable structure through the involutes.

3. The battery housing structure according to claim 1, characterized in that: The front end face of the limiting protrusion is an upwardly inclined ramp, and the high end of the ramp is greater than the bottom end face of the mounting cavity.

4. A battery housing structure according to claim 3, characterized in that: A threaded hole is provided in the middle of the inclined platform. The threaded hole is horizontally oriented and has a fastening bolt inside. One end of the fastening bolt can be rotatably extended into the inner cavity of the mounting cavity.

5. A battery housing structure according to any one of claims 1-4, characterized in that: The rear end face of the box body is provided with an exit notch, which is located at the top of the box body.

6. A battery module, characterized in that: The device includes the housing body as described in any one of claims 1-5, a plurality of batteries and connecting plates, wherein the plurality of batteries are sequentially embedded in the corresponding mounting cavities, the limiting edge is broken at the middle by an involute to form a clearance notch, the two ends of the connecting plates are electrically connected to the terminals of two adjacent batteries, and the middle part of the connecting plates is embedded inside the clearance notch.

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