Multi-cavity square shell and square battery
By designing a multi-chamber square shell, multiple chambers are formed by using the connection between several shell bodies and partitions, the problem of square batteries requiring changes in production equipment when increasing capacity is solved, and the effect of increasing capacity and reducing costs is achieved.
Patent Information
- Application Number
- CN202421138743.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-05-22
AI Technical Summary
When increasing the capacity of existing square batteries, the size of the pole plate and bare cell needs to be changed, thus requiring replacement of production equipment, resulting in high production costs.
A multi-chamber square shell is designed, and multiple chambers are formed by connecting several housing bodies and a common partition in sequence, and the chambers are communicated through through holes and grooves, avoiding changes in the size of a single chamber.
The square battery capacity is increased without changing the size and production equipment of the pole sheet and bare cell, reducing production costs and improving the uniformity of heat dissipation and electrolyte distribution.
Smart Images
Figure CN222581397U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of batteries, and in particular to a multi-chamber square housing and a square battery. Background Art
[0002] A prismatic battery is a battery with a square housing and related electrical connection components. It has the advantage of good power supply performance and is widely used in vehicles, energy storage devices and other products.
[0003] In order to increase the capacity of square batteries, it is generally necessary to increase the inner cavity size of the square shell. However, as the inner cavity size of the square shell increases, the number of related electrical connection components such as pole pieces and bare cells also needs to be increased, which requires changing the production equipment of related electrical connection components such as pole pieces and bare cells, which can easily lead to high production costs. Utility Model Content
[0004] In view of the above technical problems, the utility model provides a multi-chamber square housing and a square battery, which not only facilitates increasing the capacity of the square battery, but also does not require changing the production equipment of related electrical connection components such as pole pieces and bare cells.
[0005] In order to solve the above problems, the technical solution provided by the utility model is:
[0006] A multi-chamber square shell comprises a plurality of shell bodies connected in sequence, wherein the adjacent shell bodies share a partition plate, the partition plate is provided with a plurality of through holes, the shell bodies have chambers therein, and the chambers of the adjacent shell bodies are connected through the plurality of through holes.
[0007] Optionally, the plurality of shell bodies are connected in sequence along the length, width or height direction of the shell body.
[0008] Optionally, the plurality of shell bodies are connected in sequence along the length and width direction, the length and height direction, the width and height direction, or the length, width and height direction of the shell body.
[0009] Optionally, the spacings between adjacent through holes are equal.
[0010] Optionally, it further includes a plurality of slots provided on the partition plate, and adjacent through holes are connected via the slots, and adjacent chambers of the shell body are also connected via the plurality of slots.
[0011] Optionally, the materials of the several shell bodies and the partitions are all aluminum alloy.
[0012] A square battery comprises a multi-chamber square casing.
[0013] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:
[0014] 1) A plurality of housing bodies are used to form a plurality of chambers, and a plurality of chambers are used to accommodate a plurality of bare cells and are provided with a plurality of pole pieces, which is equivalent to the multi-chamber square housing being convenient for accommodating a plurality of bare cells, thereby facilitating the increase of capacity, and the size of a single chamber remains unchanged, so there is no need to change the size of the bare cells, pole pieces, etc., and further, there is no need to change the production equipment of the bare cells, pole pieces, etc., thereby preventing the production cost from increasing;
[0015] 2) The partition is used to separate adjacent chambers and to export the heat inside the chamber in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 One of the schematic diagrams of one of the implementation modes of a multi-chamber square housing proposed in an embodiment of the utility model;
[0017] Figure 2 A second schematic diagram of one implementation of a multi-chamber square housing proposed in an embodiment of the utility model;
[0018] Figure 3 This is a schematic diagram of a second implementation of a multi-chamber square housing proposed in an embodiment of the present utility model;
[0019] Figure 4 A second schematic diagram of a second implementation mode of a multi-chamber square housing proposed in an embodiment of the utility model;
[0020] Figure 5 A schematic diagram of the structure of the partition proposed in the embodiment of the utility model;
[0021] In the figure: 1. shell body; 2. partition; 21. through hole; 22. slot; 3. chamber. DETAILED DESCRIPTION
[0022] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.
[0023] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It should also be noted that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings. The words "first", "second", etc. described in the present utility model are set for the convenience of describing the technical solution of the present utility model, and have no specific limiting effect. They are all general references and do not constitute a limiting effect on the technical solution of the present utility model. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments in the present application can be combined with each other. In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" 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, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Multiple technical solutions in the same embodiment, and multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not have contradictions or conflicts, all of which are within the scope of protection required by the present utility model.
[0024] Example 1
[0025] Combined with Figure 1-5 This embodiment provides a multi-chamber square shell, including a plurality of shell bodies 1 connected in sequence, adjacent shell bodies 1 share a partition 2, the partition 2 is provided with a plurality of through holes 21, the shell body 1 has a chamber 3, and the chambers 3 of adjacent shell bodies 1 are connected through the plurality of through holes 21.
[0026] Specifically, several shell bodies 1 are used to form several chambers 3, and several chambers 3 are used to accommodate several bare battery cells and are equipped with several pole pieces, which is equivalent to that the multi-chamber square shell is convenient for accommodating several bare battery cells, thereby facilitating the increase of capacity, and the size of a single chamber 3 remains unchanged, so there is no need to change the size of the bare battery cells, pole pieces, etc., and further there is no need to change the production equipment of the bare battery cells, pole pieces, etc., to prevent the production cost from increasing; the partition 2 is used to separate adjacent chambers 3 and to timely export the heat inside the chamber 3, wherein the specific number of the several shell bodies 1 is not limited and can be two, three, etc.; several through holes 21 are all used to connect adjacent chambers 3, so that the electrolyte can flow freely between the several chambers 3, which is convenient for increasing the uniformity of the electrolyte distribution and increasing the uniformity of the heat dissipation inside the chamber 3.
[0027] Further, such as Figure 1-2 Along the length, width or height direction of the shell body 1, several shell bodies 1 are connected in sequence.
[0028] Specifically, several shell bodies 1 are connected in one direction, and the specific connection direction is not limited, and can be along the length, width or height direction of the shell body 1. Among them, the connection along the length direction of the shell body 1 is as follows: Figure 1-2 shown.
[0029] Further, such as Figure 3-4 Several shell bodies 1 are connected in sequence along the length and width direction, the length and height direction, the width and height direction, or the length, width and height direction of the shell body 1.
[0030] Specifically, several shell bodies 1 are connected in multiple directions, and the specific connection direction is not limited. Among them, the shell bodies 1 are connected along the length, width and height directions, such as Figure 3-4 shown.
[0031] Further, such as Figure 5 , the spacings between adjacent through holes 21 are equal.
[0032] Specifically, equal spacing facilitates increasing the uniformity of electrolyte flow.
[0033] Further, such as Figure 5 , and also includes a plurality of slots 22 arranged on the partition plate 2. Adjacent through holes 21 are connected through the slots 22, and adjacent chambers 3 of the shell body 1 are also connected through the plurality of slots 22.
[0034] Specifically, a through groove is formed on the separator 2 by a plurality of slots 22 and a plurality of through holes 21, so as to increase the flow rate of the electrolyte.
[0035] Furthermore, the materials of the shell bodies 1 and the partitions 2 are all aluminum alloy.
[0036] Specifically, the specific materials of the shell bodies 1 and the partitions 2 are not limited, and can be aluminum alloy, stainless steel, etc., preferably aluminum alloy.
[0037] The present embodiment further provides a square battery, comprising a multi-chamber square housing of the present embodiment.
[0038] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.
Claims
1. A multi-chamber square housing, characterized in that: It comprises a plurality of shell bodies connected in sequence, wherein the adjacent shell bodies share a partition plate, the partition plate is provided with a plurality of through holes, the shell bodies are provided with chambers, and the chambers of the adjacent shell bodies are connected through the plurality of through holes.
2. A multi-chamber square housing according to claim 1, characterized in that: The plurality of shell bodies are connected in sequence along the length, width or height direction of the shell body.
3. The multi-chamber square housing according to claim 1, characterized in that: The plurality of shell bodies are connected in sequence along the length and width direction, the length and height direction, the width and height direction, or the length, width and height direction of the shell body.
4. A multi-chamber square housing according to any one of claims 1 to 3, characterized in that: The distances between adjacent through holes are equal.
5. A multi-chamber square housing according to any one of claims 1 to 3, characterized in that: It also includes a plurality of slots arranged on the partition plate, and the adjacent through holes are connected through the slots, and the adjacent chambers of the shell body are also connected through the plurality of slots.
6. A multi-chamber square housing according to any one of claims 1 to 3, characterized in that: The materials of the several shell bodies and the partitions are all aluminum alloy.
7. A square battery, characterized in that: It comprises a multi-chamber square housing as described in any one of claims 1-6.