Highly efficient heat dissipating power module structure

Abstract

The utility model relates to the heat dissipation technical field of battery module, and disclose high -efficient heat dissipation power module structure, include: the heat conduction tray, the inside wall of opposite setting all are equipped with multiple inlaying groove, the heat conduction cover plate is fixedly installed at the top opening department of heat conduction tray, the graphene heat dissipation fin is installed in the inner chamber bottom of heat conduction tray, multiple with two groups of inlaying groove corresponding blade battery, respectively plug -in installation in corresponding two opposite setting inlaying groove, and after plugging, the adjacent two blade batteries between all form the heat dissipation cavity that is convenient for heat dissipation, every heat dissipation cavity's opposite side wall all are equipped with heat dissipation through -hole, and the cold plate is detachably installed at the bottom of heat conduction tray. The setting of the heat dissipation cavity, heat dissipation through -hole, heat dissipation groove forms air convection heat dissipation path, enhances the heat convection effect, and promotes the heat dissipation efficiency, and the surface contact of cold plate and heat conduction tray and the use of refrigerant realize efficient heat exchange.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology for battery modules, specifically to the structure of a high-efficiency heat dissipation power supply module. Background Technology

[0002] With the rapid development of the new energy vehicle industry, battery modules, as the core power source of vehicles, directly determine the overall vehicle performance in terms of performance and safety. Currently, widely used battery modules (such as blade battery modules) are pursuing high energy density and compact layout design trends, resulting in a significant reduction in their internal installation space.

[0003] In actual assembly, in order to improve the vehicle's driving range, the internal structure of the blade battery module is often arranged in a dense manner. Due to the compact internal structure of the blade battery module, the installation gap between adjacent blade batteries is extremely small, resulting in an overcrowded internal layout of the blade battery module. This crowded installation environment directly hinders the effective transfer and dissipation of heat.

[0004] Blade battery modules continuously generate heat during charge and discharge cycles. Their confined structure prevents effective air convection between modules, causing heat to accumulate in localized areas and significantly reducing heat dissipation efficiency. When heat accumulates to a certain level, the battery module is prone to continuous overheating, which not only accelerates battery degradation and shortens its lifespan but may also trigger thermal runaway, potentially leading to spontaneous combustion in new energy vehicles and seriously threatening the lives and property of passengers.

[0005] Based on this, a high-efficiency heat dissipation power supply module structure is proposed. Utility Model Content

[0006] This invention aims to solve the problems mentioned in the background art by providing a high-efficiency heat dissipation power supply module structure. It addresses the issue that existing blade battery modules in new energy vehicles, in pursuit of high energy density and compact layout, have a densely packed internal arrangement with minimal gaps between adjacent blade batteries, resulting in a crowded internal environment. This crowded environment hinders effective heat transfer and diffusion, preventing effective air convection between modules and causing heat to accumulate locally, leading to a significant decrease in heat dissipation efficiency. This, in turn, causes continuous overheating of the battery module, accelerates battery degradation, shortens lifespan, and may even lead to battery thermal runaway and spontaneous combustion in new energy vehicles, seriously threatening the lives and property of passengers.

[0007] The specific technical solution is as follows: The high-efficiency heat dissipation power supply module structure includes: The heat-conducting tray has a rectangular cross-section, an open top, and a hollow interior. Multiple insert slots are provided on the opposing inner sidewalls, and the two sets of insert slots are equidistantly distributed along the length of the heat-conducting tray. A heat-conducting cover plate is fixedly installed at the top opening of the heat-conducting tray; A graphene heat sink is fitted and installed at the bottom of the inner cavity of the heat-conducting tray; Multiple blade batteries corresponding to two sets of mounting slots are respectively inserted into two oppositely arranged mounting slots, and after insertion, a heat dissipation cavity is formed between two adjacent blade batteries to facilitate heat dissipation. Each of the heat dissipation cavities has heat dissipation through holes on its opposite sidewalls, and each set of oppositely arranged heat dissipation through holes is connected to the corresponding heat dissipation cavity; and A cold plate, which is detachably mounted on the bottom of the heat-conducting tray.

[0008] As a preferred embodiment of this utility model, after each blade battery is inserted and installed into the corresponding mounting slot, the bottom of each blade battery is in contact with the graphene heat sink surface, and the top of each blade battery is in contact with the inner wall surface of the heat-conducting cover plate.

[0009] As a preferred embodiment of this utility model, after each blade battery is plugged into the corresponding mounting slot, the top of each blade battery is flush with the top opening of the heat-conducting tray.

[0010] As a preferred embodiment of this utility model, the heat-conducting cover plate has heat dissipation grooves at each corresponding heat dissipation cavity, and each heat dissipation groove is connected to the corresponding heat dissipation cavity.

[0011] As a preferred embodiment of this utility model, corner brackets are fixedly installed at the four corners of the cold plate, and each corner bracket is fixedly connected to the four corners of the heat-conducting tray by bolts. After connection, the bottom of the heat-conducting tray contacts the top surface of the cold plate.

[0012] As a preferred embodiment of this utility model, the cold plate is hollow inside and filled with refrigerant, and has a threaded opening at the center of the bottom, with a screw cap screwed onto the threaded opening.

[0013] As a preferred embodiment of this utility model, the bottom four corners of the cold plate are all fixedly installed with support legs; The height of each of the aforementioned legs is equal, and the height of each of the aforementioned legs is greater than the total height of the threaded opening and the screw cap.

[0014] This utility model has the following beneficial effects: I. In this utility model, the arrangement of heat dissipation cavity, heat dissipation through hole and heat dissipation groove forms an air convection heat dissipation path, enhances the heat convection effect and improves heat dissipation efficiency.

[0015] Second, in this utility model, the surface contact design between the blade battery and the graphene heat sink and heat-conducting cover increases the heat conduction area, improves the heat conduction efficiency, and avoids local heat accumulation.

[0016] Third, in this utility model, the surface contact between the cold plate and the heat-conducting tray, as well as the use of refrigerant, achieve efficient heat exchange, quickly remove heat, and ensure the continuity and stability of heat dissipation.

[0017] Fourth, in this utility model, the corner bracket installation and support design of the cold plate ensure structural stability, provide operating space for adding and replacing coolant, and protect the cold plate structure.

[0018] Fifth, in this utility model, the overall structure effectively solves the problem of low heat dissipation efficiency caused by the crowded layout of the blade battery module through heat conduction and heat convection multi-path heat dissipation, avoids the risks of continuous battery heating, degradation, thermal runaway, etc., and ensures the safety of new energy vehicle use and battery life. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a three-dimensional schematic diagram of a partial cross-section of the present invention; Figure 3 This is a three-dimensional schematic diagram of a partial cross-section of the combination of the heat-conducting tray, heat-conducting cover plate, and graphene heat sink of this utility model. Figure 4 This is an exploded view of the present invention; Figure 5 for Figure 4 An enlarged 3D schematic diagram of section A in the middle; Figure 6 This is a three-dimensional schematic diagram of the cross-section of this utility model; Figure 7 for Figure 6 Enlarged 3D schematic diagram of section B; Figure 8 for Figure 6 A schematic diagram of the main structure.

[0020] In the picture: 10. Thermal conductive tray; 101. Mounting groove; 102. Heat dissipation through hole; 20. Thermal conductive cover plate; 201. Heat dissipation groove; 30. Graphene heat sink; 40. Blade battery; 50. Cold plate; 501. Threaded opening; 502. Screw cap; 60. Support leg; 70. Corner bracket; 80. Heat dissipation cavity. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0023] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0024] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] This utility model provides a high-efficiency heat dissipation power module structure to address the problem that existing blade battery modules in new energy vehicles, in pursuit of high energy density and compact layout, have a densely packed internal arrangement with minimal installation gaps between adjacent blade batteries, resulting in a crowded internal environment. This crowded environment hinders effective heat transfer and diffusion, preventing effective air convection between modules, causing heat to accumulate locally and significantly reducing heat dissipation efficiency. This, in turn, leads to continuous overheating of the battery module, accelerated battery degradation, shortened lifespan, and may even cause battery thermal runaway and spontaneous combustion in new energy vehicles, seriously threatening the life and property safety of passengers. The specific solution is as follows: Example 1

[0026] like Figures 1-8 As shown, the high-efficiency heat dissipation power supply module structure provided in this embodiment of the present invention includes: The heat-conducting tray 10 has a rectangular cross-section, an open top, and a hollow interior. Multiple mounting slots 101 are provided on the opposing inner sidewalls. The two sets of mounting slots 101 are equidistantly distributed along the length of the heat-conducting tray 10. A heat-conducting cover plate 20 is fixedly installed at the top opening of the heat-conducting tray 10; The graphene heat sink 30 is attached to the bottom of the inner cavity of the heat-conducting tray 10; Multiple blade batteries 40 corresponding to the two sets of mounting slots 101 are respectively inserted into the corresponding two oppositely arranged mounting slots 101, and after insertion, a heat dissipation cavity 80 is formed between two adjacent blade batteries 40 to facilitate heat dissipation. Each heat dissipation cavity 80 has heat dissipation through holes 102 on its opposite sidewalls, and each set of oppositely arranged heat dissipation through holes 102 is connected to the corresponding heat dissipation cavity 80; and Cold plate 50, which is detachably mounted on the bottom of heat-conducting tray 10.

[0027] Within the battery bracket of the new energy vehicle chassis, the power module structures are combined in pairs to form blade battery modules, thereby providing power to the new energy electric vehicle.

[0028] In this embodiment, part of the heat generated by the blade battery 40 during operation is conducted to the cold plate 50 through the graphene heat sink 30, and dissipated with the help of the refrigerant in the cold plate 50; another part of the heat is accumulated in the heat dissipation cavity 80, and exchanged with the outside air through the heat dissipation holes 102 on the heat conduction tray 10. At the same time, the heat conduction cover plate 20 assists in heat dissipation, thereby achieving efficient heat dissipation of the blade battery 40. Example 2

[0029] like Figures 1-8 As shown, the improvements are based on Example 1: Furthermore, after each blade battery 40 is plugged into the corresponding mounting slot 101, the bottom of each blade battery 40 is in contact with the graphene heat sink 30, and the top of each blade battery 40 is in contact with the inner wall of the heat-conducting cover plate 20.

[0030] In this embodiment, when the blade battery 40 is inserted into the mounting slot 101, its bottom contacts the graphene heat sink 30 and its top contacts the inner wall of the heat-conducting cover plate 20, increasing the contact area for heat conduction and enabling the heat from the blade battery 40 to be conducted to the graphene heat sink 30 and the heat-conducting cover plate 20 more efficiently, thereby improving heat dissipation efficiency.

[0031] Furthermore, after each blade battery 40 is plugged into the corresponding mounting slot 101, the top of each blade battery 40 is flush with the top opening of the heat-conducting tray 10.

[0032] In this embodiment, the top of the blade battery 40 is flush with the top opening of the heat-conducting tray 10, ensuring that the heat-conducting cover 20 is in full contact with the top of the blade battery 40, avoiding heat dissipation dead zones, and ensuring that heat is smoothly conducted from the blade battery 40 to the heat-conducting cover 20.

[0033] Furthermore, the heat-conducting cover plate 20 has heat dissipation grooves 201 at each corresponding heat dissipation cavity 80, and each heat dissipation groove 201 is connected to the corresponding heat dissipation cavity 80.

[0034] In this embodiment, the heat-conducting cover plate 20 has heat dissipation grooves 201 at each heat dissipation cavity 80, so that the heat in the heat dissipation cavity 80 can be exchanged with the outside air through the heat dissipation grooves 201, thereby increasing the heat dissipation path and improving the heat dissipation effect.

[0035] Furthermore, corner brackets 70 are fixedly installed at the four corners of the cold plate 50. Each corner bracket 70 is fixedly connected to the four corners of the heat conduction tray 10 by bolts. After connection, the bottom of the heat conduction tray 10 contacts the top surface of the cold plate 50.

[0036] In this embodiment, the cold plate 50 contacts the bottom surface of the heat-conducting tray 10 through the corner bracket 70, increasing the heat conduction area and enabling the heat from the graphene heat sink 30 to be transferred to the refrigerant in the cold plate 50 more efficiently, thereby enhancing the heat dissipation capacity.

[0037] Furthermore, the interior of the cold plate 50 is hollow and filled with refrigerant, and there is a threaded opening 501 at the center of the bottom, with a screw cap 502 screwed onto the threaded opening 501.

[0038] Furthermore, the refrigerant is coolant. After opening the screw cap 502, the coolant can be added into the inner cavity of the cold plate 50 through the threaded port 501. Conversely, when changing the coolant, it can also be discharged through the threaded port 501. After the coolant is added or discharged, the screw cap 502 can be tightened on the threaded port 501.

[0039] In this embodiment, the cold plate 50 is hollow inside and filled with refrigerant. The bottom is provided with a threaded port 501 and a screw cap 502 to facilitate the addition and replacement of coolant, ensuring that the cold plate 50 has good heat exchange capacity and maintains stable heat dissipation effect.

[0040] Furthermore, support legs 60 are fixedly installed at the four bottom corners of the cold plate 50; The height of each support leg 60 is equal, and the height of each support leg 60 is higher than the total height of the threaded opening 501 and the screw cap 502.

[0041] In this embodiment, the height of the bottom support 60 of the cold plate 50 is higher than the total height of the threaded opening 501 and the screw cap 502. During installation, the threaded opening 501 and the screw cap 502 are prevented from contacting the battery bracket, thus protecting the cold plate 50 and ensuring the operating space for the coolant.

[0042] The different embodiments described above can be combined, substituted, or used in combination with each other.

[0043] Work steps: like Figures 1-8 As shown, the blade battery 40 generates heat during operation. The heat is conducted to the graphene heat sink 30 and the heat-conducting cover plate 20 respectively through the bottom contact with the graphene heat sink 30 and the top contact with the heat-conducting cover plate 20. The heat from the graphene heat sink 30 is conducted to the refrigerant inside the cold plate 50 through the surface contact with the cold plate 50, and the refrigerant carries away the heat. At the same time, the heat in the heat dissipation cavity 80 between adjacent blade batteries 40 is exchanged with the outside air through the heat dissipation through holes 102 on the heat-conducting tray 10 and the heat dissipation grooves 201 on the heat-conducting cover plate 20, and the heat-conducting cover plate 20 assists in heat dissipation. The cold plate 50 is securely installed by the corner bracket 70, and the bottom support 60 ensures the installation space. The coolant can be easily added or replaced through the threaded port 501 and the screw cap 502, thereby realizing multi-path and efficient heat dissipation of the blade battery 40.

[0044] In summary: 1. The surface contact design of the blade battery 40 with the graphene heat sink 30 and the heat-conducting cover 20 increases the heat conduction area, improves the heat conduction efficiency, and avoids local heat accumulation.

[0045] Second, the arrangement of the heat dissipation cavity 80, heat dissipation through hole 102, and heat dissipation groove 201 forms an air convection heat dissipation path, enhances the heat convection effect, and improves heat dissipation efficiency.

[0046] Third, the surface contact between the cold plate 50 and the heat-conducting tray 10, as well as the use of refrigerant, achieve efficient heat exchange, quickly remove heat, and ensure the continuity and stability of heat dissipation.

[0047] IV. The installation of the corner bracket 70 and the design of the support leg 60 of the cold plate 50 ensure structural stability, provide operating space for adding and replacing coolant, and protect the structure of the cold plate 50.

[0048] Fifth, the overall structure effectively solves the problem of low heat dissipation efficiency caused by the crowded layout of the blade battery module through multi-path heat dissipation via heat conduction and heat convection, avoiding risks such as continuous battery heating, degradation, and thermal runaway, and ensuring the safety of new energy vehicles and the service life of the battery.

[0049] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency heat dissipation power supply module structure, characterized in that, include: The heat-conducting tray (10) has a rectangular cross-section, an open top, and a hollow interior. Multiple mounting slots (101) are provided on the opposing inner sidewalls. The two sets of mounting slots (101) are equidistantly distributed along the length of the heat-conducting tray (10). A heat-conducting cover plate (20) is fixedly installed at the top opening of the heat-conducting tray (10); A graphene heat sink (30) is attached to the bottom of the inner cavity of the heat-conducting tray (10); Multiple blade batteries (40) corresponding to two sets of mounting slots (101) are respectively inserted into two corresponding opposite mounting slots (101), and after insertion, a heat dissipation cavity (80) is formed between two adjacent blade batteries (40) to facilitate heat dissipation. Each of the heat dissipation cavities (80) has heat dissipation through holes (102) on its opposite sidewalls, and each set of oppositely arranged heat dissipation through holes (102) is connected to the corresponding heat dissipation cavity (80); and A cold plate (50) is detachably mounted on the bottom of the heat-conducting tray (10).

2. The high-efficiency heat dissipation power supply module structure according to claim 1, characterized in that, After each blade battery (40) is inserted into the corresponding mounting slot (101), the bottom of each blade battery (40) is in contact with the graphene heat sink (30) and the top of each blade battery (40) is in contact with the inner wall of the heat-conducting cover plate (20).

3. The high-efficiency heat dissipation power supply module structure according to claim 2, characterized in that, After each blade battery (40) is inserted into the corresponding mounting slot (101), the top of each blade battery (40) is flush with the top opening of the heat-conducting tray (10).

4. The high-efficiency heat dissipation power supply module structure according to claim 3, characterized in that, The heat-conducting cover plate (20) has heat dissipation grooves (201) at each heat dissipation cavity (80), and each heat dissipation groove (201) is connected to the corresponding heat dissipation cavity (80).

5. The high-efficiency heat dissipation power supply module structure according to claim 4, characterized in that, Corner brackets (70) are fixedly installed at the four corners of the cold plate (50). Each corner bracket (70) is fixedly connected to the four corners of the heat-conducting tray (10) by bolts. After connection, the bottom of the heat-conducting tray (10) contacts the top surface of the cold plate (50).

6. The high-efficiency heat dissipation power supply module structure according to claim 5, characterized in that, The cold plate (50) is hollow inside and filled with refrigerant. It has a threaded opening (501) at the center of the bottom and a screw cap (502) is screwed onto the threaded opening (501).

7. The high-efficiency heat dissipation power supply module structure according to claim 6, characterized in that, The bottom four corners of the cold plate (50) are all fixedly installed with support legs (60). The height of each of the legs (60) is equal, and the height of each of the legs (60) is higher than the total height of the threaded opening (501) and the screw cap (502).

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