KR-102964198-B1 - Batteries and electrical devices

KR102964198B1KR 102964198 B1KR102964198 B1KR 102964198B1KR-102964198-B1

Abstract

Embodiments of the present invention provide a battery and an electric device, wherein the battery comprises a box body, a battery pack, and a limiting member. The battery pack is installed within the box body, and the battery pack comprises two or more battery cells arranged along a first direction, wherein the battery cells comprise a first side wall and a second side wall connected to each other, the first side wall being the wall with the largest area among all outer walls of the battery cells, and the second side walls of two adjacent battery cells are installed oppositely along the first direction. The limiting member is fixedly connected to the box body and contacts the first side wall of the battery cell, and the limiting member is used to limit deformation of the battery cell in a second direction, the second direction being perpendicular to the first side wall. Embodiments of the present invention can simplify the manufacturing process, reduce costs, and enable a lightweight design while satisfying the requirements for limiting fixation and resistance to expansion force.

Inventors

롱, 차오
장, 웬후이
첸, 싱디
왕, 펭

Assignees

컨템포러리 엠퍼렉스 테크놀로지 (홍콩) 리미티드

Dates

Publication Date: 20260512
Application Date: 20220810

Claims (18)

As a battery, Box type; A battery pack comprising two or more battery cells installed within the above-mentioned box body and arranged along a first direction, wherein the battery cells each comprise a first side wall and a second side wall connected to each other, wherein the first side wall is the wall with the largest area among all outer walls of the battery cells, and the second side walls of two adjacent battery cells are installed facing each other along the first direction; and A limiting member is fixedly connected to the above box body and contacts the first side wall of the battery cell, and is used to limit deformation of the battery cell in a second direction, wherein the second direction is perpendicular to the first side wall. The battery further comprises a bus member and an output member base, wherein the bus member is electrically connected to the battery cell, and the output member base is installed on the limiting member and used to support the bus member.
In paragraph 1, A battery in which, in the height direction of the above box body, the height dimension of the limiting member is H and the height dimension of the battery cell is h, wherein 2/3 ≤ H/h ≤ 1 1/10.
In paragraph 1, A battery in which, in the height direction of the above box body, the height dimension of the limiting member is H and the height dimension of the battery cell is h, wherein 0.9≤H/h≤1.
In paragraph 3, The limiting member comprises a limiting beam, the limiting beam extends along the first direction, and in the first direction, both ends of the limiting beam are connected to the box body, and the limiting beam is pressed against the first side wall of the battery cell and connected to the first side wall.
In paragraph 4, A battery having a plurality of cavities installed within the limiting beam along the first direction.
In paragraph 4, The number of limiting beams is two, and the two limiting beams are arranged spaced apart in the second direction, and the battery pack is a battery clamped between the two limiting beams.
In paragraph 1, The number of the above battery packs is two or more, and the two or more battery packs are arranged along the second direction, and a partition is installed between two adjacent battery packs, and the partition is connected to the first side wall of each of the battery cells of the two adjacent battery packs.
In Paragraph 7, The above-described section is a battery that is adhered to and fixed to the first side wall of each of the two adjacent battery packs.
In Paragraph 7, A battery in which the above-mentioned compartment is used to control the temperature of the battery cell, and a medium flow path is installed within the above-mentioned compartment.
In Paragraph 9, The battery further comprises a communication channel, an inlet pipe, and an outlet pipe, wherein, along the second direction, the medium flow paths of two adjacent compartments are connected through the communication channel, and the inlet pipe and the outlet pipe are connected to the medium flow paths of the same compartment.
In Paragraph 10, A battery in which a through hole is installed in the above-mentioned box body, and the above-mentioned inlet pipe and the above-mentioned outlet pipe each extend outside the above-mentioned box body through the through hole.
In paragraph 1, The above-described box body includes a top cover, a bottom cover, and a receiving frame, wherein the bottom cover and the top cover are installed oppositely to both ends of the receiving frame in the height direction of the box body, and the limiting member is connected to at least one of the receiving frame, the top cover, and the bottom cover.
In Paragraph 12, The above box body further includes a connecting base, the connecting base is installed to protrude from the receiving frame along the first direction, and the connecting base is a battery used to mount the battery to an electrical device.
In paragraph 1, A battery in which a receiving groove is installed in the limiting member, and the output member base extends at least partially into the receiving groove.
In Paragraph 12, A battery in which, along the height direction of the above-described box body, an electrode terminal is formed at one end of the battery cell that is close to the bottom cover, and the surface of the battery cell that is away from the electrode terminal is connected to the top cover.
In paragraph 15, The above battery further includes a buffer member, and the buffer member is installed between the electrode terminal and the bottom cover along the height direction.
As an electrical device, An electric device comprising a battery according to any one of claims 1 to 16 for providing electric energy.
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Description

Batteries and electrical devices The present invention relates to the field of battery technology, and more specifically, to batteries and electric devices. As energy conservation and emission reduction are key to the sustainable development of the automotive industry, electric vehicles are becoming an important component of this development due to their advantages in terms of energy saving and environmental protection. In the case of electric vehicles, battery technology is a critical element in their development. In conventional battery manufacturing processes, end plates are typically installed and battery cells are secured using connecting members. Additionally, reinforcing structures are usually installed on the end plates to resist the expansion force of the battery cells; however, this installation method involves a large number of parts, is complex to manufacture, and increases weight and manufacturing costs. The present invention provides a battery and an electric device capable of simplifying the manufacturing process, reducing costs, and implementing a lightweight design while satisfying the requirements for limiting fixation and resistance to expansion force. In a first aspect, an embodiment of the present invention provides a battery comprising a box body, a battery pack, and a limiting member. The battery pack is installed within the box body, and the battery pack comprises two or more battery cells arranged along a first direction, wherein the battery cells comprise a first side wall and a second side wall connected to each other, the first side wall being the wall with the largest area among all outer walls of the battery cells, and the second side walls of two adjacent battery cells are installed oppositely along the first direction. A limiting member is fixedly connected to the box body and contacts the first side wall of the battery cell, and the limiting member is used to limit deformation of the battery cell in a second direction, and the second direction is perpendicular to the first side wall. In an embodiment of the present invention, a limiting member is installed and fixedly connected to a box body to contact the first side wall of a battery cell, thereby fulfilling the role of limiting fixation for the battery cell. At the same time, the limiting member can limit deformation of the battery cell in a second direction, which is advantageous for cushioning the expansion of the battery cell and thus ensuring the safety performance of the battery. Furthermore, by installing in this manner, there is no need to install end plates and other connecting members, which is advantageous for improving mounting efficiency and mounting accuracy. This simplifies the manufacturing process, reduces manufacturing costs and the overall weight of the battery, and enables a lightweight design. In addition, since the first side wall is the wall with the largest surface area among all outer walls of the battery cell, the limiting member performs limiting fixation for the battery cell more effectively and can resist expansion deformation. Moreover, the installation of the limiting member can also serve to improve the overall structural strength of the battery, thereby more effectively ensuring the safety performance of the battery. In some embodiments, in the height direction of the box body, the height dimension of the limiting member is H and the height dimension of the battery cell is h, wherein 2/3≤H/h≤11/10. If H/h is too large, it results in wasted internal space of the battery and a very low energy density. If H/h is too small, it cannot satisfy the structural strength of the battery, and cracks may occur in the case after the battery cell expands, and even safety accidents such as fire and explosion may occur. Therefore, by setting H/h between 2/3 and 1 1/10 and including these two end values of 2/3 and 1 1/10, it is possible to satisfy the role of structural strength and expansion resistance, as well as save space, improve space utilization, and improve the energy density of the battery. In some embodiments, in the height direction of the box body, the height dimension of the limiting member is H and the height dimension of the battery cell is h, wherein 0.9≤H/h≤1. By setting H/h between 0.9 and 1 and including these two end values of 0.9 and 1, it is advantageous to more effectively satisfy the structural strength role and expansion resistance effect and to improve safety reliability, and also advantageous to more effectively improve the energy density of the battery. In some embodiments, the limiting member includes a limiting beam, the limiting beam extends along a first direction, and in the first direction, both ends of the limiting beam are connected to a box body, and the limiting beam is pressed against a first side wall of a battery cell and connected to the first side wall. By installing in this manner, the limiting member is installed in the form of a limiting beam, which is advantageou