Heat dissipation module and energy storage device
By combining liquid cooling plates and air cooling plates into a heat dissipation module, along with heat conduction units and reinforcing ribs, the problem of insufficient temperature control of the battery module under high-power operation is solved, achieving efficient heat dissipation and improved safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2026-03-27
AI Technical Summary
In existing energy storage systems, the heat carried away by the coolant in the bottom cold plate channel is insufficient to control the battery temperature within a reasonable range when the battery module is operating at high power, which threatens the battery life and safety.
The heat dissipation module adopts a combination of liquid cooling plate and air cooling plate, combined with heat conduction unit, and cools down through both liquid cooling and air cooling. The heat dissipation fins and reinforcing ribs are added to increase the contact area and structural strength, forming a multi-layer heat dissipation structure.
It enables rapid and effective control of battery module temperature, improves heat dissipation efficiency, extends battery module lifespan, and enhances safety.
Smart Images
Figure CN224053192U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to battery energy storage technology field especially, relate to heat dissipation module and energy storage device. BACKGROUND
[0002] Energy storage device can produce certain heat when working, if cannot obtain very good control, can form the serious threat to the life and safety of battery, even causes thermal runaway, therefore the heat dissipation management of battery has caused the widespread attention.
[0003] At present, the heat dissipation scheme that battery module of energy storage system in industry commonly uses is that the cold plate with flow channel is additionally arranged at the bottom of battery module, and the cooling liquid in the cold plate is used for heat dissipation. But under the high-power operation state, the heat taken away by the cooling liquid in the flow channel of the bottom cold plate is insufficient to make the battery maintain in the appropriate working temperature. UTILITY MODEL CONTENT
[0004] The utility model discloses a heat dissipation module and energy storage device, and efficient cooling makes battery module temperature control in the reasonable operation range of battery.
[0005] In order to achieve this purpose, the utility model adopts the following technical scheme:
[0006] The heat dissipation module comprises:
[0007] The first cooling unit comprises a liquid cooling plate, and the liquid cooling plate has a cooling flow channel inside;
[0008] The second cooling unit comprises an air cooling plate, the air cooling plate is arranged on one side of the liquid cooling plate, and the air cooling plate is provided with a plurality of heat dissipation fins on the side away from the liquid cooling plate;
[0009] The heat conduction unit is arranged between the air cooling plate and the liquid cooling plate.
[0010] As an optional scheme of the heat dissipation module, the plurality of heat dissipation fins extend along a first direction; and / or
[0011] The plurality of heat dissipation fins extend along a second direction, and the first direction is perpendicular to the second direction.
[0012] As an optional scheme of the heat dissipation module, the air cooling plate is provided with a plurality of first air cooling pipes on the side away from the liquid cooling plate, and the heat dissipation fins are located between two adjacent first air cooling pipes.
[0013] As an optional scheme of the heat dissipation module, the second cooling unit further comprises:
[0014] The first cold plate reinforcing rib plate is arranged at two ends of the air cooling plate.
[0015] As an optional solution of the heat dissipation module, the second cooling unit further comprises:
[0016] A second cold plate stiffener plate is arranged on the air-cooled plate and between the two first cold plate stiffener plates.
[0017] As an optional solution of the heat dissipation module, the upper surfaces of the two first cold plate stiffener plates and the second cold plate stiffener plate are flush, the liquid-cooled plate is riveted with the two first cold plate stiffener plates and the second cold plate stiffener plate, the two first cold plate stiffener plates, the second cold plate stiffener plate, the liquid-cooled plate and the air-cooled plate form a heat conduction groove with an open side, and the heat conduction unit is arranged in the heat conduction groove.
[0018] As an optional solution of the heat dissipation module, the second cooling unit further comprises:
[0019] A blocking piece is arranged at the opening of the heat conduction groove, and the two ends of the blocking piece extend to the corresponding first cold plate stiffener plates, respectively.
[0020] As an optional solution of the heat dissipation module, the first cold plate stiffener plate is provided with a second air-cooled pipe away from the side of the liquid-cooled plate.
[0021] As an optional solution of the heat dissipation module, the second cold plate stiffener plate is provided with a third air-cooled pipe away from the side of the liquid-cooled plate, and the third air-cooled pipe communicates with the second air-cooled pipe.
[0022] As an optional solution of the heat dissipation module, the first cooling unit further comprises:
[0023] A mounting plate is arranged on the side of the liquid-cooled plate away from the air-cooled plate, and the mounting plate is riveted with the liquid-cooled plate to form a first module, and the first module is riveted with the first cold plate stiffener plate and the second cold plate stiffener plate.
[0024] The energy storage device comprises a battery module and a heat dissipation module as described above, and the battery module is arranged on the heat dissipation module.
[0025] As an optional solution of the energy storage device, two cross beams are arranged on the mounting plate of the heat dissipation module at intervals, the bottom of the battery module abuts against the mounting plate, and the shell of the battery module is connected with the cross beams through fasteners.
[0026] Compared with the prior art, the energy storage device has the following beneficial effects:
[0027] The heat dissipation module is provided by the utility model, the air cooling plate of the second cooling unit is installed at the bottom of the liquid cooling plate and transmits heat through the heat conduction unit, the plurality of heat dissipation fins are arranged at the bottom of the air cooling plate, which not only can increase the contact area of air and the second cooling unit and accelerate the heat dissipation speed, but also improves the structural strength of the air cooling plate.
[0028] The energy storage device is provided by the utility model, the battery module is installed on the mounting plate of the heat dissipation module, the first cooling unit and the second cooling unit are used to control the temperature of the battery module in a reasonable range. BRIEF DESCRIPTION OF DRAWINGS
[0029] Figure 1 It is the assembly schematic view of the heat dissipation module in the utility model embodiment;
[0030] Figure 2 It is the explosion schematic view of the heat dissipation module in the utility model embodiment (the heat conduction unit is not shown);
[0031] Figure 3 It is the structural schematic view of the air cooling plate in the utility model embodiment;
[0032] Figure 4 It is Figure 3 The local enlarged view of A in the figure;
[0033] Figure 5 It is the explosion schematic view of the second cooling unit in the utility model embodiment.
[0034] In the figure:
[0035] 1, the first cooling unit;2, the second cooling unit;
[0036] 11, the liquid cooling plate;12, the first interface;13, the second interface;14, the mounting plate;141, the first avoiding hole;142, the second avoiding hole;143, the crossbeam;
[0037] 21, the air cooling plate;211, the heat dissipation fin;212, the first air cooling pipeline;22, the first cold plate reinforcing rib plate;221, the second air cooling pipeline;23, the second cold plate reinforcing rib plate;231, the third air cooling pipeline;24, the plugging piece. DETAILED DESCRIPTION
[0038] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are merely used to explain the utility model and not to limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for the convenience of description, not all the structures.
[0039] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0040] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0041] In the description of the embodiment, the terms "upper", "lower", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only used to distinguish in description and have no special meaning.
[0042] In order to efficiently cool down and control the temperature of the battery module within the reasonable operation range of the battery, the embodiment provides a heat dissipation module and energy storage device, which will be described below in combination with Figures 1 to 5 The specific content of the embodiment will be described in detail. It should be noted that the first direction mentioned in the embodiment is the X direction in Figure 3 The second direction mentioned in the embodiment is the Y direction in Figure 3 .
[0043] As shown in Figures 1 to 4As shown, the heat dissipation module in the embodiment includes a first cooling unit 1, a second cooling unit 2 and a heat conduction unit. The first cooling unit 1 includes a liquid cooling plate 11, a first interface 12 and a second interface 13 located on the same side of the liquid cooling plate 11. The liquid cooling plate 11 has a cooling flow channel inside. The first interface 12 is in communication with the liquid inlet of the cooling flow channel, and the second interface 13 is in communication with the liquid outlet of the cooling flow channel. The second cooling unit 2 includes an air cooling plate 21. The air cooling plate 21 is arranged on the side of the liquid cooling plate 11 away from the first interface 12 and the second interface 13. The air cooling plate 21 is provided with a plurality of heat dissipation fins 211 on the side away from the liquid cooling plate 11. The heat conduction unit is arranged between the air cooling plate 21 and the liquid cooling plate 11. Optionally, the heat conduction unit can be, but is not limited to, heat conduction glue.
[0044] Briefly, the heat dissipation module provided by the utility model, the first interface 12 and the second interface 13 are in communication with the liquid inlet and the liquid outlet of the cooling flow channel in the liquid cooling plate 11 respectively, the air cooling plate 21 of the second cooling unit 2 is installed at the bottom of the liquid cooling plate 11 and heat is transferred through the heat conduction glue of the heat conduction unit, and the plurality of heat dissipation fins 211 are arranged at the bottom of the air cooling plate 21, which not only can increase the contact area of air and the second cooling unit 2 and accelerate the heat dissipation speed, but also can improve the structural strength of the air cooling plate 21. When the battery module is placed on the liquid cooling plate 11, the heat generated by the battery module passes through the first cooling unit 1, the heat conduction unit and the second cooling unit 2 in turn, and the temperature of the battery module is quickly and effectively reduced through liquid cooling and air cooling, so that the temperature of the battery module is controlled in the reasonable operation range of the battery.
[0045] Further, the plurality of heat dissipation fins 211 extend along a first direction, and / or the plurality of heat dissipation fins 211 extend along a second direction, and the first direction is perpendicular to the second direction. Figure 3 and Figure 4 As shown, in the embodiment, a plurality of heat dissipation fins 211 are arranged at the bottom of the air cooling plate 21, and the heat dissipation fins 211 all extend along the first direction. In other application scenarios, the plurality of heat dissipation fins 211 at the bottom of the air cooling plate 21 all extend along the second direction, or the plurality of heat dissipation fins 211 are arranged longitudinally and transversely, further improving the structural strength of the air cooling plate 21.
[0046] Further, as shown, Figures 2 to 5 The air cooling plate 21 is provided with a plurality of first air cooling pipes 212 on the side away from the liquid cooling plate 11, and the heat dissipation fins 211 are located between adjacent two first air cooling pipes 212. The flowing air can not only exchange heat with the heat dissipation fins 211 on the air cooling plate 21, but also flow into the first air cooling pipes 212, further increasing the contact area of the air cooling plate 21 and the air.
[0047] Further, the second cooling unit 2 further comprises a first cold plate stiffener plate 22, and two first cold plate stiffener plates 22 are respectively arranged at two ends of the air-cooled plate 21. In the embodiment, the two first cold plate stiffener plates 22 are riveted with the left and right ends of the air-cooled plate 21. By adding the two first cold plate stiffener plates 22, the bending strength of the left and right ends of the air-cooled plate 21 can be improved, and the carrying capacity of the air-cooled plate 21 can be improved.
[0048] Further, the second cooling unit 2 further comprises a second cold plate stiffener plate 23, and the second cold plate stiffener plate 23 is arranged on the air-cooled plate 21 and located between the two first cold plate stiffener plates 22. In the embodiment, the second cold plate stiffener plate 23 is riveted with the rear end of the air-cooled plate 21. The second cold plate stiffener plate 23 and the two first cold plate stiffener plates 22 are located at three edges of the air-cooled plate 21, so that the structural strength of the air-cooled plate 21 can be improved.
[0049] Further, the upper surfaces of the two first cold plate stiffener plates 22 and the second cold plate stiffener plate 23 are flush with each other, the liquid-cooled plate 11 is riveted with the two first cold plate stiffener plates 22 and the second cold plate stiffener plate 23, the two first cold plate stiffener plates 22, the second cold plate stiffener plate 23, the liquid-cooled plate 11 and the air-cooled plate 21 form a heat-conducting groove with an open side, and the heat-conducting glue of the heat-conducting unit can be filled into the heat-conducting groove. The riveting mode is used to replace the welding connection mode, so that the flatness of the product can meet the use requirements, the contact surface of the battery module bottom and the heat dissipation module is fully matched, and the heat dissipation performance is improved.
[0050] Further, the second cooling unit 2 further comprises a sealing member 24, and the sealing member 24 is arranged at the opening of the heat-conducting groove, and the two ends of the sealing member extend to the corresponding first cold plate stiffener plates 22 respectively. When the heat-conducting glue of the heat-conducting unit fills the heat-conducting groove, the sealing member 24 is located at the front end of the heat-conducting groove. By adding the sealing member 24, the heat-conducting glue can be completely sealed. Exemplarily, the upper end surface of the sealing member 24 is bonded with the liquid-cooled plate 11, and the lower end surface of the sealing member 24 is bonded with the air-cooled plate 21.
[0051] Further, the side of the first cold plate stiffener plate 22 away from the liquid-cooled plate 11 is provided with a second air-cooled pipe 221. The flowing air can not only exchange heat with the heat dissipation fins 211 on the air-cooled plate 21, but also flow into the second air-cooled pipe 221, so as to further increase the contact area of the air-cooled plate 21 and the air.
[0052] Further, the side of the second cold plate stiffener plate 23 away from the liquid-cooled plate 11 is provided with a third air-cooled pipe 231, and the third air-cooled pipe 231 communicates with the second air-cooled pipe 221. The flowing air can flow freely in the third air-cooled pipe 231 and the second air-cooled pipe 221, and take away the heat of the air-cooled plate 21.
[0053] Further, asFigure 1 Combination Figure 2 As shown, the first cooling unit 1 further comprises a mounting plate 14, which is arranged on the side of the liquid cooling plate 11 away from the air cooling plate 21, and the mounting plate 14 is provided with a first avoiding hole 141 and a second avoiding hole 142, the first interface 12 is arranged in the first avoiding hole 141, and the second interface 13 is arranged in the second avoiding hole 142. The mounting plate 14 and the liquid cooling plate 11 are riveted together to ensure the flatness of the product, so that the bottom of the battery module is in full contact with the upper surface of the mounting plate 14, and the heat dissipation performance is improved.
[0054] Exemplarily, the assembly mode of the heat dissipation module can be: the mounting plate 14 and the liquid cooling plate 11 are connected by rivet connection to form a first module, the two first cooling plate reinforcing rib plates 22 and the second cooling plate reinforcing rib plate 23 are fixedly connected together with the air cooling plate 21 by rivet connection to form a second module, and then the first cooling plate reinforcing rib plate 22 and the second cooling plate reinforcing rib plate 23 of the first module and the second module are riveted, the riveting of the first cooling unit 1 and the second cooling unit 2 is completed, the space reserved between the liquid cooling plate 11 and the air cooling plate 21 is filled with heat-conducting glue, so that the heat generated by the battery is transmitted to the bottom of the air cooling plate 21 for external heat exchange, and the heat is transmitted to the outside through the bottom heat dissipation fins 211. The connection and fixing mode between the components of the cooling plate is changed and the way of transmitting heat from the battery module to the outside is increased by using the heat dissipation module, so that the battery module is uniformly cooled, compared with the traditional bottom heat dissipation, the way of transmitting heat from the battery module to the outside is increased, the heat dissipation efficiency of the battery module is improved, the service life of the battery module is prolonged, and the safety of the battery module is improved. The components of the heat dissipation module are changed from the traditional vacuum brazing and friction stir welding mode to rivet connection and fixing (such as Figure 2 and Figure 5 As shown, the mounting plate 14, the liquid cooling plate 11, the air cooling plate 21, the first cooling plate reinforcing rib plate 22, and the second cooling plate reinforcing rib plate 23 are all provided with rivet holes for riveting, and the heat-conducting glue is filled to ensure the flatness of the contact surface between the liquid cooling plate 11 and the battery module, so that the contact surface between the battery and the heat dissipation module is more sufficient, the cooling plate can take away more heat, and the production yield is greatly improved; and the bottom heat dissipation fins 211 increase the lateral strength of the cooling plate and act as reinforcing ribs, so that the bearing strength of the cooling plate can meet the use requirements.
[0055] The embodiment also provides a storage device, which comprises a battery module and the above-mentioned heat dissipation module, and the battery module is arranged on the heat dissipation module, so that the temperature of the battery module can be controlled within a reasonable range.
[0056] Further, two cross beams 143 are arranged on the mounting plate 14 of the heat dissipation module in a spaced manner, the bottom of the battery module is in abutment with the mounting plate 14, the energy storage device further comprises fasteners, and the shell of the battery module is connected with the cross beams 143 through the fasteners.
[0057] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent substitution and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.
Claims
1. A heat dissipation module, characterized in that, The application relates to a cooling module. The first cooling unit (1) comprises a liquid cooling plate (11) with a cooling flow channel inside; The second cooling unit (2) comprises an air cooling plate (21) arranged on one side of the liquid cooling plate (11), and a plurality of heat dissipation fins (211) arranged on the side of the air cooling plate (21) away from the liquid cooling plate (11); A heat conduction unit is arranged between the air cooling plate (21) and the liquid cooling plate (11).
2. The heat dissipation module of claim 1, wherein, The plurality of heat dissipation fins (211) extend along a first direction; and / or The plurality of heat dissipation fins (211) extend along a second direction, and the first direction is perpendicular to the second direction.
3. The heat dissipation module of claim 1, wherein, The air cooling plate (21) is provided with a plurality of first air cooling pipes (212) on the side away from the liquid cooling plate (11), and the heat dissipation fins (211) are located between two adjacent first air cooling pipes (212).
4. The heat dissipation module of claim 1, wherein, The second cooling unit (2) further comprises: Two first cold plate reinforcing rib plates (22) are arranged at the two ends of the air cooling plate (21) respectively.
5. The heat dissipation module of claim 4, wherein, The second cooling unit (2) further comprises: A second cold plate reinforcing rib plate (23) is arranged on the air cooling plate (21) and located between the two first cold plate reinforcing rib plates (22).
6. The heat dissipation module of claim 5, wherein, The upper surfaces of the two first cold plate reinforcing rib plates (22) and the second cold plate reinforcing rib plate (23) are flush with each other, the liquid cooling plate (11) is riveted with the two first cold plate reinforcing rib plates (22) and the second cold plate reinforcing rib plate (23), the two first cold plate reinforcing rib plates (22), the second cold plate reinforcing rib plate (23), the liquid cooling plate (11) and the air cooling plate (21) form a heat conduction groove with an open side, and the heat conduction unit is arranged in the heat conduction groove.
7. The heat dissipating module of claim 6, wherein, The second cooling unit (2) further comprises: A blocking piece (24) is arranged at the opening of the heat conduction groove, and the two ends of the blocking piece extend to the corresponding first cold plate reinforcing rib plates (22) respectively.
8. The heat dissipation module of claim 5, wherein, The first cold plate reinforcing rib plate (22) is provided with a second air cooling pipe (221) on the side away from the liquid cooling plate (11).
9. The heat dissipating module of claim 8, wherein, The second cold plate reinforcing rib plate (23) is provided with a third air cooling pipe (231) on the side away from the liquid cooling plate (11), and the third air cooling pipe (231) communicates with the second air cooling pipe (221).
10. The heat dissipation module of claim 5, wherein, The first cooling unit (1) further comprises: A mounting plate (14) is arranged on the side of the liquid cooling plate (11) away from the air cooling plate (21), and the mounting plate (14) is riveted with the liquid cooling plate (11) to form a first module, and the first module is riveted with the first cold plate reinforcing rib plate (22) and the second cold plate reinforcing rib plate (23).
11. An energy storage device, characterized by The application further relates to a battery module and a heat dissipation module as claimed in any one of claims 1-10, and the battery module is arranged on the heat dissipation module.
12. The energy storage device of claim 11, wherein, The mounting plate (14) of the heat dissipation module is provided with two cross beams (143) at intervals, the bottom of the battery module abuts against the mounting plate (14), and the shell of the battery module is connected with the cross beams (143) through fasteners.