Air cooling structure
By designing air-cooled fins with U-shaped connecting ribs and curved edge structures in the air-cooled structure, the problems of excessive thickness of the air-cooled fins and cell expansion are solved, and better heat dissipation and extended cell life are achieved.
Patent Information
- Application Number
- CN202420443253.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-07
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-03-07
AI Technical Summary
The thickness of the air-cooled fins in the air-cooled structure is too large, resulting in excessive overall mass and unsatisfactory heat dissipation of the battery cell. The hard-shelled battery cell is easily squeezed during expansion, shortening its service life.
An air-cooled structure is designed in which the air-cooled fins include two heat dissipation plates and multiple connecting ribs. The connecting ribs are U-shaped and have curved structures, which can resist continuous deformation when the battery core is expanded and deformed at maximum expansion and deformation, and pass through thermally conductive silicone and foam to improve heat dissipation.
Effectively release the expansion force of the electric cell, extend the service life, and improve heat dissipation performance through the thinning wall thickness and the elastic structure of the connecting ribs.
Smart Images
Figure CN222190904U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of new energy, in particular to an air cooling structure. Background Art
[0002] At present, the thickness of the air-cooling fins in the air-cooling structure is too large, and the overall mass is too heavy, which greatly reduces the cost control. At the same time, the thickness of the existing air-cooling fins is too large, which is not very ideal for the heat dissipation of the battery cells in the air-cooling structure.
[0003] The cells of hard-shell batteries face the problem of cell expansion in the thickness direction, whether in the BOL stage (early life) or the EOL stage (end of life). If the expansion force cannot be released, the cells will be squeezed too tightly during the expansion process, that is, the rigidity of the module shell is too large, resulting in failure to offset the expansion of the cells throughout the life cycle. This will accelerate the attenuation of the cell capacity and greatly shorten the service life. Utility Model Content
[0004] In order to solve the deficiencies of the above technical solutions, the purpose of the utility model is to provide an air cooling structure.
[0005] The purpose of the utility model is achieved through the following technical solutions.
[0006] A wind-cooling structure, comprising two end plates, foam, a plurality of wind-cooling fins and a plurality of battery cells, wherein the plurality of wind-cooling fins are arranged at intervals along the length direction of the wind-cooling structure, the battery cell is located between the two wind-cooling fins, a foam is arranged on the outer surface of the two outermost wind-cooling fins, the outer surface of the foam is connected to the end plates, and a heat-conducting silica gel is arranged between the wind-cooling fins and the battery cell;
[0007] The air-cooled fins include two heat sinks and a plurality of connecting ribs, wherein the plurality of connecting ribs are arranged from top to bottom between the two heat sinks, the connecting ribs are U-shaped, and the open end of the U-shape is provided with a bending edge extending outward at 90°, and the bending part of the bending edge extending outward is an arc-shaped and smoothly transitioned to form a bending edge.
[0008] In the above technical solution, one connecting rib is arranged at the top of the two heat sinks, one connecting rib is arranged at the end of the two heat sinks, and the remaining two connecting ribs are distributed in the middle part of the two heat sinks. The two connecting ribs above the two heat sinks are inverted U-shaped, and the two connecting ribs below are U-shaped.
[0009] In the above technical solution, a plurality of heat dissipation protrusions are arranged on the inner surfaces of the two heat dissipation plates.
[0010] In the above technical solution, the distance between the outer surfaces of the two heat sinks is 1.1 mm.
[0011] The advantages and beneficial effects of the utility model are:
[0012] 1. The air-cooled fin of the utility model is provided with a bending edge on the connecting rib between the two heat dissipation plates. When the air-cooled fin reaches the maximum expansion deformation of the battery cell, the bending edge can resist the continued deformation of the air-cooled fin, ensuring that the air-cooled fin will not be compressed by the expansion force and thus cause danger to the battery cell.
[0013] 2. The wall thickness of the air-cooled fins is reduced, the connecting ribs increase the surface area, and the heat dissipation structure is better.
[0014] 3. The connecting ribs on the air-cooled fins of the utility model are in a U-shaped structure, which has good elasticity, thereby effectively releasing the expansion force and deformation of the battery core and extending the service life of the battery core. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 A side view of the air-cooled fin.
[0016] Figure 2 Schematic diagram of the overall structure of the air-cooled fin.
[0017] Figure 3 It is the overall structural schematic diagram of the air-cooling structure.
[0018] Among them, 1: end plate, 2: foam, 3: air-cooled fin, 3.1: heat sink, 3.2: connecting ribs, 3.3: bent edge, 3.4: heat dissipation protrusion, 4: battery cell.
[0019] For ordinary technicians in this field, other relevant drawings can be obtained based on the above drawings without any creative work. DETAILED DESCRIPTION
[0020] The technical solution of the present utility model is further described below in conjunction with specific embodiments.
[0021] like Figure 1-Figure 3 As shown, an air-cooling structure includes two end plates 1, foam 2, a plurality of air-cooling fins 3 and a plurality of battery cells 4. The plurality of air-cooling fins 3 are arranged at intervals along the length direction of the air-cooling structure, and the battery cell 4 is located between the two air-cooling fins 3. The outer surfaces of the two outermost air-cooling fins 3 are each provided with a foam 2, and the outer surfaces of the foam 2 are connected to the end plates 1. Specifically, a thermally conductive silica gel is arranged between the air-cooling fins 3 and the battery cells 4, and the number of the air-cooling fins 3 is 13.
[0022] The air-cooled fin 3 includes two heat sinks 3.1 and four connecting ribs 3.2. The four connecting ribs 3.2 are arranged from top to bottom between the two heat sinks 3.1. The connecting rib 3.2 is U-shaped and the open end of the U-shape is provided with a bent edge 3.3 extending outward at 90°. The bent part of the outwardly extending bent edge 3.3 is arc-shaped and smoothly transitions to form the bent edge 3.3. The outer end of the bent edge 3.3 is connected to the heat sink 3.1.
[0023] Specifically, one connecting rib 3.2 is arranged at the top of the two heat dissipation plates 3.1, one connecting rib 3.2 is arranged at the end of the two heat dissipation plates 3.1, and the remaining two connecting ribs 3.2 are distributed in the middle part of the two heat dissipation plates 3.1; wherein, the two connecting ribs located at the upper part and the two connecting ribs located at the lower part are symmetrically arranged, that is, the two connecting ribs located at the upper part are convex upward (in an inverted U shape), and the two connecting ribs located at the lower part are concave downward (in a U shape).
[0024] Furthermore, a plurality of heat dissipation protrusions 3.4 are provided on the inner surfaces of the two heat dissipation plates 3.1, and the distance between the outer surfaces of the two heat dissipation plates 3.1 is preferably 1.1 mm.
[0025] For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to illustrate the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "on" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.
[0026] Furthermore, relational terms such as “first” and “second” and the like are merely used to distinguish one component from another having the same name, but do not necessarily require or imply any such actual relationship or order between these components.
[0027] The above is an exemplary description of the present invention. It should be noted that, without departing from the core of the present invention, any simple deformation, modification or other equivalent replacement that can be done by other technical personnel in this field without expending creative labor falls within the protection scope of the present invention.
Claims
1. An air cooling structure, characterized in that: It comprises two end plates, foam, a plurality of air-cooling fins and a plurality of battery cells, wherein the plurality of air-cooling fins are arranged at intervals along the length direction of the air-cooling structure, the battery cell is located between the two air-cooling fins, the outer surfaces of the two outermost air-cooling fins are each provided with a foam, the outer surface of the foam is connected to the end plates, and a thermal conductive silica gel is provided between the air-cooling fins and the battery cell; The air-cooled fins include two heat sinks and a plurality of connecting ribs, wherein the plurality of connecting ribs are arranged from top to bottom between the two heat sinks, the connecting ribs are U-shaped, and the open end of the U-shape is provided with a bending edge extending outward at 90°, and the bending part of the bending edge extending outward is an arc-shaped and smoothly transitioned to form a bending edge.
2. The air cooling structure according to claim 1, characterized in that: One connecting rib is arranged at the top of the two heat sinks, one connecting rib is arranged at the end of the two heat sinks, and the remaining two connecting ribs are distributed in the middle of the two heat sinks. The two connecting ribs above the two heat sinks are inverted U-shaped, and the two connecting ribs below are U-shaped.
3. The air cooling structure according to claim 1, characterized in that: A plurality of heat dissipation protrusions are arranged on the inner surfaces of the two heat dissipation plates.
4. The air cooling structure according to claim 1, characterized in that: The distance between the outer surfaces of the two heat dissipation plates is 1.1 mm.