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KR-102962533-B1 - Battery box, battery, electrical device, battery manufacturing method and device

KR102962533B1KR 102962533 B1KR102962533 B1KR 102962533B1KR-102962533-B1

Abstract

The invention provides a battery box body, a battery, an electric device, a method for manufacturing a battery, and a device, wherein the box body and the battery on which it is located have superior performance. The battery box body (100) comprises a thermal management member (110) for accommodating a fluid to regulate the temperature of the battery—a projection (111) protruding outward along a first direction (x) is installed in the end region of a first side (1101) of the thermal management member (110), the first direction (x) is parallel to the first side (1101) of the thermal management member (110), and the projection (111) forms a concave portion (112) with the second side (1102) of the thermal management member (110); and a connecting plate (120) that is accommodated in the concave portion (112) and connected to the second side (1102) and the projection (111). Through the above technical solution, a thermal management member is included in the battery box body to realize the integration of the thermal management member and the box body, and thermal management of the electrical member inside the box body is realized through the thermal management member, while simultaneously saving internal space of the box body, thereby improving the energy density of the battery.

Inventors

  • 왕, 리앙이

Assignees

  • 컨템포러리 엠퍼렉스 테크놀로지 (홍콩) 리미티드

Dates

Publication Date
20260508
Application Date
20230105
Priority Date
20220113

Claims (19)

  1. As a battery box body (100), A thermal management member (110) for accommodating fluid and controlling the temperature of the battery - a projection (111) protruding outward along a first direction (x) is installed in the end region of the first side (1101) of the thermal management member (110), the first direction (x) is parallel to the first side (1101) of the thermal management member (110), and the projection (111) forms a concave portion (112) with the second side (1102) of the thermal management member (110). A connecting plate (120) that is received in the concave portion (112) and connected to the second side (1102) and the projection portion (111); and It includes a mounting block (122) installed on the above-mentioned projection (111), The above mounting block (122) is welded to the above protrusion (111) through an arc welding process, and A Euro cavity (1104) is installed in the above thermal management member (110), and a water cavity (1103) is installed in the above protrusion (111). The thickness of the cavity wall of the above Euro cavity (1104) is smaller than the thickness of the cavity wall of the above water cavity (1103) toward the above mounting block (122). Box (100).
  2. In paragraph 1, The above connecting plate (120) is a box body (100) that is welded to the second side (1102) and the protrusion (111) through a stirring friction welding process.
  3. In paragraph 1, A box body (100) in which the thickness of the cavity wall of the above Euro cavity (1104) is 1.5 mm or less.
  4. In paragraph 1, A mounting beam (121) is installed on the above connecting plate (120), and the mounting beam (121) extends along a second direction (y) parallel to the second side (1102) and is also used to mount a battery member in a box body (100).
  5. In paragraph 4, The above mounting beam (121) and the above connecting plate (120) are a box body (100) having an integrated structure.
  6. In paragraph 4, The above mounting block (122) is in contact with the mounting beam (121), and the above mounting block (122) is interlocked with the mounting beam (121) and is used to mount the battery member in a box body (100).
  7. In paragraph 1, A box body (100) having a cavity wall thickness of 2 mm or more of the water cavity (1103) facing the mounting block (122).
  8. In paragraph 1, The above-mentioned thermal management member (110) includes two first sides (1101) that are parallel to each other, and on the end regions located on the same side of the two first sides (1101), the projection (111) protruding outward along the first direction (x) is installed; The above second side (1102) is connected to two of the above protrusions (111) to form the above concave part (112) of the box body (100).
  9. In paragraph 8, In the end regions located on both sides of each of the two first sides (1101), the projection (111) protruding outward along the first direction (x) is installed; The above-mentioned heat management member (110) includes two second sides (1102) that are parallel to each other, and each of the second sides (1102) is connected to two protrusions (111) to form a box body (100) that forms a concave portion (112).
  10. In paragraph 1, The above thermal management member (110) comprises at least two parts welded together, and the weld seam between the at least two parts is a box body (100) that is parallel to the first side (1101) and also perpendicular to the second side (1102).
  11. In paragraph 1, A box body (100) having a support beam (130) extended along the first direction (x) installed on the first side (1101) and the projection (111) of the above-mentioned heat management member (110).
  12. In Paragraph 11, The above support beam (130) and the above thermal management member (110) are a box body (100) having an integrated structure.
  13. In paragraph 1, The above thermal management member (110) and the above connecting plate (120) are connected to each other to form the bottom plate of the box body (100).
  14. In paragraph 1, The above thermal management member (110) and the above connecting plate (120) are made of aluminum, forming a box body (100).
  15. As a battery (10), battery cell (20), and A battery comprising a box body (100) according to any one of claims 1 to 14, wherein the box body (100) is used to accommodate the battery cell (20).
  16. As an electrical device, The electric device comprises a battery (10) according to claim 15, wherein the battery (10) is used to supply electric energy to the electric device.
  17. As a method for manufacturing a battery, Step of providing a battery cell (20); As a step of providing a box body (100), the box body (100) A thermal management member (110) for accommodating a fluid to control the temperature of the battery cell - a projection (111) protruding outward along a first direction (x) is installed in the end region of the first side (1101) of the thermal management member (110), the first direction (x) is parallel to the first side (1101) of the thermal management member (110), and the projection (111) forms a concave portion (112) with the second side (1102) of the thermal management member (110). A connecting plate (120) that is received in the concave portion (112) and connected to the second side (1102) and the projection portion (111); and It includes a mounting block (122) installed on the above-mentioned projection (111); The above mounting block (122) is welded to the above protrusion (111) through an arc welding process, and A Euro cavity (1104) is installed in the above thermal management member (110), and a water cavity (1103) is installed in the above protrusion (111). Step, the thickness of the cavity wall of the above Euro cavity (1104) is smaller than the thickness of the cavity wall of the above water cavity (1103) toward the above mounting block (122); and A method for manufacturing a battery comprising the step of accommodating the battery cell (20) in the box body (100).
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Description

Battery box, battery, electrical device, battery manufacturing method and device Cross-reference of related applications This application claims priority to Chinese patent application 202210038840.1, filed on January 13, 2022, titled "Battery box, battery, electric device, battery manufacturing method and device," all of which are incorporated into this application by reference. The embodiments of the present application relate to the field of batteries, and more specifically, to a battery box, a battery, an electric device, a method and device for manufacturing a battery. Energy conservation and emission reduction are key to the sustainable development of the automotive industry. In this regard, electric vehicles have become an important part of the industry's sustainable development due to their advantages of energy saving and eco-friendliness. For electric vehicles, battery technology is also a critical factor in their development. In some battery technologies, the battery is formed of at least one battery cell, and to ensure the mounting stability of multiple battery cells in an electric vehicle, the battery further includes a box body for accommodating said at least one battery cell. As part of the battery, the performance of said box body also affects the overall performance of the battery. Therefore, how to improve the performance of the box and the battery in which it is located is one of the technical problems that urgently needs to be solved in battery technology. In order to explain the technical solution means according to the embodiments of the present application more clearly, the drawings to be used in the embodiments of the present application are briefly introduced below. It is obvious that the drawings described below are merely some embodiments of the present application, and that a person skilled in the art can obtain other drawings from the drawings without striving to create an inventive step. FIG. 1 is a schematic diagram of the structure of a vehicle disclosed in one embodiment of the present application. FIG. 2 is a schematic diagram of the structure of a battery disclosed in one embodiment of the present application. FIG. 3 is a schematic diagram of the structure of a battery cell disclosed in one embodiment of the present application. FIG. 4 is a schematic diagram of the structure of a battery box body disclosed in one embodiment of the present application. FIG. 5 is a schematic diagram of the structure of a battery box body disclosed in another embodiment of the present application. FIG. 6 is a schematic diagram of the structure of a battery box body disclosed in another embodiment of the present application. Figure 7 is an approximate local cross-sectional view in the AA' direction in Figure 6. FIG. 8 is a schematic diagram of the structure of a battery box body disclosed in another embodiment of the present application. FIG. 9 is a schematic diagram of the structure of a battery box body disclosed in another embodiment of the present application. FIG. 10 is a schematic diagram of the structure of a battery box body disclosed in another embodiment of the present application. FIG. 11 is a schematic structural diagram of a connecting plate disclosed in one embodiment of the present application. FIG. 12 is a schematic diagram of the structure of two types of thermal management members disclosed in one embodiment of the present application. FIG. 13 is a schematic diagram of the structure of a battery box body disclosed in another embodiment of the present application. FIG. 14 is a schematic diagram of the structure of a battery box body disclosed in another embodiment of the present application. FIG. 15 is a schematic flowchart of a battery manufacturing method disclosed in one embodiment of the present application. FIG. 16 is a schematic block diagram of a battery manufacturing apparatus disclosed in one embodiment of the present application. In drawings, the drawing is not drawn according to actual proportions. The embodiments of the present application are described in further detail below by combining the drawings and examples. The following detailed description of the embodiments and drawings are intended to illustrate the principles of the present application, but they do not limit the scope of the application; that is, the present application is not limited to the described embodiments. In the description of this application, it is necessary to explain that, unless otherwise stated, "plural" means two or more; and the directional or positional relationships indicated by terms such as "up," "down," "left," "right," "inside," and "outside" are merely for the purpose of describing and briefly explaining this application, and do not imply or suggest that the device or element indicated must necessarily have a specific direction, be configured in a specific direction, or be operated in a specific direction, and should not be understood as a limitation to this application. Furtherm