Energy storage battery pack liquid cooling radiator, energy storage assembly and energy storage container
By designing a combination of liquid-cooled base plate, cover plate, fin and metal support plate, the existing energy storage liquid-cooled radiator has solved the problems of large volume, high material cost and leakage risk, and an energy storage battery liquid-cooled radiator with efficient heat dissipation and high load-bearing capacity is achieved.
Patent Information
- Application Number
- CN202422189136.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-09-06
AI Technical Summary
The existing energy storage liquid cooling radiators are large in size, high in material costs, high in transportation costs, cumbersome in technology, and have leakage risks, and insufficient load-bearing capacity.
The design of liquid-cooled bottom plate, liquid-cooled cover plate, heat dissipation fins and metal support plate is adopted. The metal support plate is formed by brazing and adding metal support plates to improve structural strength and heat dissipation efficiency. The 3-series aluminum plate and Q235D steel are used. The fins are arranged in the runner to enhance heat exchange efficiency and form an integral structure through bolt connection.
It achieves lightweight, improves heat dissipation efficiency and load-bearing capacity, reduces material costs, simplifies production processes, reduces leakage risks, and can withstand high-strength shocks and vibrations.
Smart Images
Figure CN223260664U_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present disclosure relate to the technical field of radiators, and in particular to a liquid-cooled radiator for an energy storage battery pack, an energy storage assembly, and an energy storage container. Background Art
[0002] With carbon neutrality becoming a global consensus, one of the challenges we currently face is how to accelerate the green transformation of the energy sector and reduce carbon emissions by increasing the proportion of renewable energy. Photovoltaic and wind power generation, among other renewable energy sources, will be key areas of future development. However, to overcome their intermittent and volatile nature, the entire power system must undergo a transformation. Energy storage is a key technology in this transformation.
[0003] Currently, some improved energy storage liquid cooling radiators are made of 6-series aluminum profiles. The two main cold plates are joined by stir welding, followed by welding on auxiliary materials such as crossbeams, reinforcement blocks, and faucets. These radiators offer excellent load-bearing properties, requiring only a small amount of metal brackets at the bottom to meet pressure requirements. While this type of improvement is not currently available, the large size of these liquid cooling radiators leads to high material and transportation costs, a complex process, low production efficiency, and multiple welding locations that can easily create leakage risks. Utility Model Content
[0004] The purpose of the embodiments of the present disclosure is to provide a liquid-cooled radiator for an energy storage battery, an energy storage assembly, and an energy storage container, thereby solving the aforementioned problems existing in the prior art.
[0005] In order to achieve the above objectives, the technical solutions adopted in the embodiments of the present disclosure are as follows:
[0006] On the one hand, an embodiment of the present disclosure proposes a liquid-cooled radiator for an energy storage battery pack, wherein the liquid-cooled radiator for the energy storage battery pack comprises: a radiator body and a metal support plate; the radiator body comprises a liquid-cooled base plate, a liquid-cooled cover plate, a plurality of heat dissipating fins and a water nozzle; the liquid-cooled base plate is provided with a flow channel for the flow of coolant, and each of the heat dissipating fins is separately arranged in a corresponding flow channel of the liquid-cooled base plate; the water nozzle is arranged on the liquid-cooled cover plate, and the liquid-cooled cover plate sealing cover is arranged on the liquid-cooled base plate; the metal support is detachably arranged on the radiator body.
[0007] Optionally, the metal support plate includes a frame and a support base plate; the frame is arranged on the edges of the support base plate to enclose a receiving cavity, and a reinforcing structure is provided in the receiving cavity; the flow channel of the liquid cooling base plate is accommodated in the receiving cavity and in contact with the reinforcing structure; the edge of the radiator body is connected to the frame.
[0008] Optionally, the reinforcement structure includes a connecting plate and reinforcing ribs; the connecting plate is arranged in the accommodating cavity, and the two ends of the connecting plate are respectively connected to the inner side walls of the frame along the width direction, and a plurality of connecting plates are arranged at uniform intervals; a plurality of reinforcing ribs are arranged on each connecting plate along the length direction of the frame, and the distance between the surface of the reinforcing rib and the surface of the frame is equal to the thickness of the liquid cooling base plate flow channel.
[0009] Optionally, hanging parts are symmetrically provided at both ends of two opposite side surfaces of the metal support plate for hanging the radiator.
[0010] Optionally, the flow channels near the edge areas of the liquid cooling base plate are narrower, and the central area of the liquid cooling base plate has multiple evenly dispersed and wider flow channels, forming a reserved space for installing heat dissipating fins; multiple heat dissipating fins are arranged in the corresponding reserved space.
[0011] Optionally, the energy storage battery pack liquid-cooled radiator further includes: two cross beams, which are respectively arranged on the two edges of the liquid-cooled cover plate along the length direction; the two ends of the cross beam are located on the frame, and the cross beam is also provided with a mounting portion, which is used to install the battery pack.
[0012] Optionally, the liquid cooling base plate, the liquid cooling cover plate and the heat dissipation fins are made of 3 series aluminum plate.
[0013] Optionally, each of the heat dissipation fins is welded to the corresponding flow channel by brazing.
[0014] Another aspect of the disclosed embodiment provides an energy storage assembly, which includes a battery pack and the aforementioned energy storage battery pack liquid-cooling radiator, wherein the battery pack is disposed on the energy storage battery pack liquid-cooling radiator.
[0015] Another aspect of the embodiments of the present disclosure provides an energy storage container, which includes the energy storage assembly described above.
[0016] The beneficial effects of the embodiments of the present disclosure are:
[0017] The liquid-cooled radiator of the disclosed embodiment has a simple structure. Fins are added in the flow channel to increase the heat exchange efficiency between the radiator and the coolant. The load-bearing capacity of the liquid-cooled radiator is improved by adding a metal support plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is an exploded diagram of the liquid-cooled radiator structure of an energy storage battery pack provided by an embodiment of the present disclosure;
[0019] Figure 2 This is a schematic diagram of the assembly structure of a liquid-cooled radiator for an energy storage battery pack provided by an embodiment of the present disclosure;
[0020] Figure 3 It is a deformation diagram of a pressure strength simulation test of a liquid-cooled radiator of an energy storage battery pack implemented by the present disclosure, wherein the central area of the radiator is severely deformed, while the two edges of the radiator along the width direction are almost not deformed.
[0021] In the picture:
[0022] 1. Liquid cooling cover; 2. Liquid cooling base plate; 3. Crossbeam; 4. Water nozzle; 5. Heat sink fins; 6. Metal support plate. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure more clear, the embodiments of the present disclosure are further described in detail below with reference to the accompanying drawings. It should be understood that the specific implementation methods described herein are only used to explain the embodiments of the present disclosure and are not intended to limit the embodiments of the present disclosure.
[0024] like Figure 1 As shown, an embodiment of the present disclosure proposes a liquid-cooled radiator for an energy storage battery pack on one hand, the liquid-cooled radiator for the energy storage battery pack comprising: a radiator body and a metal support plate; the radiator body comprises a liquid-cooled base plate 2, a liquid-cooled cover plate 1, a plurality of heat dissipating fins 5 and a water nozzle 4, the liquid-cooled base plate 2 is provided with a flow channel for the flow of coolant, each of the heat dissipating fins 5 is separately arranged in a corresponding flow channel of the liquid-cooled base plate 2, the water nozzle 4 is arranged on the liquid-cooled cover plate 1, and the sealing cover of the liquid-cooled cover plate 1 is arranged on the liquid-cooled base plate 2; the metal support plate 6 is detachably arranged on the radiator body.
[0025] The liquid-cooled radiator for the energy storage battery pack of the disclosed embodiment can be widely used to support and dissipate heat for the battery pack in the battery cabinet of an energy storage container. The battery pack generates a large amount of heat during the charging and discharging process. The heat is transferred to the coolant circulation system through the radiator, and eventually the heat is taken out of the battery pack. The ideal battery operating temperature is 15-35°C, and the temperature difference of the modules in the battery pack should be less than 5°C. Therefore, the thermal management of the energy storage battery is very important and is the key to ensuring the continuous and safe operation of the energy storage system. The radiator of the disclosed embodiment is integrally brazed, which is simple and convenient.
[0026] The liquid-cooled radiator of the energy storage battery pack of the present embodiment has internal brazed turbulent fins. The central area of the liquid-cooled base plate is provided with a flow channel for the flow of coolant, and the fins are provided in the flow channel; the liquid-cooled base plate and the liquid-cooled cover plate can be welded and sealed. After welding, the flow channel profile becomes a closed cavity, which acts as a pipe. The radiator of the present invention has two water nozzles, one is a liquid inlet nozzle, and the other is a liquid outlet nozzle. The two nozzles are respectively connected to the flow channel. The liquid inlet nozzle is connected to the cold source to add coolant to the flow channel. The coolant circulates in the flow channel. The coolant is usually a mixture of water and ethylene glycol. After the coolant is filled, the liquid-cooled cover plate can be in contact with the coolant in the flow channel; after the coolant circulates, it flows out from the liquid outlet nozzle. The outflowing coolant converges to the circulation pump, and thus circulates. The circulation pump is the coolant circulation system. The two nozzles 4 are welded to the liquid-cooled cover plate by argon arc welding to form a whole. The radiator body and the bottom metal support plate 6 are fastened by bolts to form the structure of the entire radiator. The liquid cooling cover plate 1, which serves as the contact heat-conducting surface between the radiator and the battery pack, only needs to be punched out with holes for later assembly. The liquid cooling base plate 2 needs to be punched out with a flow channel profile. After the flow channel profile is welded to the liquid cooling cover plate 1, the liquid cooling base plate 2 forms an empty inner cavity to form a sealed flow channel for circulating coolant. In order to increase the heat exchange efficiency between the radiator and the coolant, heat dissipation fins 5 are added to the inner cavity. The heat dissipation fins and the radiator body are also integrally stamped out of 3 series aluminum plates, and then brazed in the inner cavity.
[0027] To ensure the radiator can withstand a 350kg battery pack, this embodiment incorporates a Q235D steel bracket, known as a metal support plate 6, on the back of the radiator. This bracket is bolted to the radiator as a single unit. If any problems arise with the metal support plate 6 or the radiator itself, they can be removed and replaced separately, minimizing material waste.
[0028] The embodiment of the present disclosure adds a steel structure support at the bottom of the radiator, such as Figure 3 As shown in the figure, through pressure strength simulation, it is ensured that the deformation of the radiator is within the qualified range after installing a 350 kg battery module. At the same time, it can withstand high-intensity impact and vibration.
[0029] The radiator body is formed by brazing the liquid-cooled base plate and the liquid-cooled cover plate made of two 3 series aluminum plates, and the structural strength of the radiator is strengthened by adding a metal support plate to increase the load-bearing capacity of the radiator. At the same time, the cooling fins are arranged in the flow channel. After the flow channel is injected with coolant, the cooling fins are immersed in the coolant, which increases the heat exchange area between the radiator and the circulating coolant and improves the heat dissipation efficiency. The material of the cooling fins can be 3 series aluminum plates, which are brazed in the flow channel to ensure the weight of the radiator.
[0030] As a specific example of a metal support plate, the metal support plate includes a frame and a support base plate; the frame is arranged on the edges of the support base plate to form a accommodating cavity, a reinforcing structure is provided in the accommodating cavity, the flow channel of the liquid-cooling base plate is accommodated in the accommodating cavity and in contact with the reinforcing structure; the edge of the radiator body is detachably connected to the frame.
[0031] The accommodating cavity in the metal support plate can improve the ability to resist impact and vibration, and is lighter than a solid steel plate.
[0032] As a specific example of the reinforcement structure, the reinforcement structure includes a connecting plate and a reinforcing rib; the connecting plate is arranged in the accommodating cavity, and both ends of the connecting plate are respectively connected to the inner side wall of the frame along the width direction, and a plurality of the connecting plates are arranged at uniform intervals;
[0033] A plurality of reinforcing ribs are provided on each of the connecting plates along the length direction of the frame, and the distance between the surface of the reinforcing ribs and the surface of the frame is equal to the thickness of the liquid cooling bottom plate flow channel.
[0034] The surface of the bracket on one side of the frame of the embodiment of the present disclosure is provided with a notch that matches the liquid inlet and outlet channels embedded in the liquid cooling base plate flow channel, and the flow channel of the liquid cooling base plate is embedded in the accommodating cavity in the metal support plate, and the edge of the radiator body is detachably connected to the frame by bolts.
[0035] The reinforced metal support plate structure described in this disclosure enhances structural strength and ensures full contact between the metal support plate (i.e., the steel bracket) and the bottom of the radiator. A 3-series aluminum liquid cooling plate radiator lacks support for the battery pack. The primary load-bearing mechanism is the steel bracket below.
[0036] As a specific example of the metal support plate, hoisting parts are symmetrically provided at both ends of two opposite side surfaces of the metal support plate for hoisting the radiator.
[0037] That is to say, the hoisting parts are symmetrically arranged at both ends of the two opposite sides of the frame. Specifically, the hoisting parts can be hoisting openings. Four hoisting points are designed on the side of the metal support plate 6 as hoisting points for later battery packaging and unloading.
[0038] As a specific example of a flow channel, the width of the flow channel near the edge area of the liquid cooling base plate is narrower, and the central area of the liquid cooling base plate has multiple evenly dispersed and wider flow channels, forming a reserved space for installing heat dissipating fins; multiple heat dissipating fins are arranged in the corresponding reserved space.
[0039] The embodiment of the present disclosure has six heat dissipating fins 5, and the central area of the liquid-cooled base plate can be evenly dispersed to form six wider flow channels, and the six wider flow channels can also be arranged adjacent to each other. The liquid-cooled cover plate 1 and the central area of the liquid-cooled base plate 2 are placed with six groups of heat dissipating fins 5 according to the flow channel arrangement, and the heat dissipating fins 5 are welded to the corresponding flow channels and the liquid-cooled base plate 2 by brazing to form a whole.
[0040] like Figure 2 As shown, as a specific example of a radiator, the energy storage battery pack liquid-cooled radiator also includes: two crossbeams 3, which are respectively arranged at the two edges of the liquid-cooled cover plate along the length direction; the two ends of the crossbeam are located on the frame, and the crossbeam is also provided with a mounting portion, which is used to install the battery pack.
[0041] The crossbeams 3 of the disclosed embodiment can be welded to the liquid-cooled cover plate 2. The welding of the crossbeams 3 to the liquid-cooled cover plate can be performed in the same process as the welding of the heat sink fins to the flow channel, improving the overall welding efficiency of the radiator product. In the disclosed embodiment, only two crossbeams 3 are brazed on the liquid-cooled cover plate 1 to secure the battery pack. The outer shell of the battery pack is directly assembled with the radiator body, reducing the number of crossbeams. Compared to using profiles, the four beams above the liquid-cooled cover plate are eliminated, resulting in a lighter weight.
[0042] By adopting the above technical solution disclosed in the embodiment of the present disclosure, the following beneficial effects are achieved:
[0043] 1) High Efficiency: The shape, flow channels, and holes of the liquid-cooling base and cover are stamped and formed in a single process, improving machining efficiency. The welding between the liquid-cooling base, cover, heat sink, and beam is completed in a single brazing process, which is simple and efficient.
[0044] 2) Light weight: The liquid cooling base plate and liquid cooling cover plate of this design are brazed with 2.5mm thick 3 series aluminum plates. The fins are thinner, about 0.3mm, and can be adjusted according to actual requirements. The amount of aluminum used in the radiator is minimized, and the weight is reduced by 20% compared to traditional profile radiators.
[0045] 3) Strong load-bearing capacity: The introduction of a metal support plate solves the shortcoming of aluminum plates' insufficient load-bearing capacity. The Q235 metal support plate allows the radiator to bear a load of over 350 kg and withstand high-intensity shock and vibration.
[0046] Another aspect of the present disclosure provides an energy storage assembly, comprising a battery pack and the aforementioned liquid-cooled radiator for the energy storage battery pack, wherein the battery pack is mounted on the liquid-cooled radiator. The energy storage assembly of the present disclosure also includes other components and systems, which are not limited herein.
[0047] Another aspect of an embodiment of the present disclosure provides an energy storage container, which includes the energy storage assembly described above.
[0048] The above is only a preferred implementation of the embodiment of the present disclosure. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the embodiment of the present disclosure. These improvements and modifications should also be considered within the scope of protection of the embodiment of the present disclosure.
Claims
1. A liquid cooling radiator for an energy storage battery pack, characterized in that: The energy storage battery pack liquid cooling radiator includes: a radiator body and a metal support plate; the radiator body includes a liquid cooling base plate, a liquid cooling cover plate, a plurality of heat dissipation fins and a water nozzle; the liquid cooling base plate is provided with a flow channel for the flow of coolant, each of the heat dissipation fins is separately arranged in a corresponding flow channel of the liquid cooling base plate, the water nozzle is provided on the liquid cooling cover plate, and the liquid cooling cover plate sealing cover is provided on the liquid cooling base plate; The metal support is detachably arranged on the radiator body.
2. The liquid cooling radiator for energy storage battery pack according to claim 1, characterized in that: The metal support plate includes a frame and a support base plate; the frame is arranged on the edges of the support base plate to enclose a receiving cavity, and a reinforcement structure is arranged in the receiving cavity; The flow channel of the liquid cooling base plate is accommodated in the accommodating cavity and contacts the reinforcing structure; the edge of the radiator body is connected to the frame.
3. The liquid-cooled radiator for the energy storage battery pack according to claim 2, characterized in that: The reinforcement structure includes a connecting plate and reinforcing ribs; the connecting plate is arranged in the accommodating cavity, and both ends of the connecting plate are respectively connected to the inner side wall of the frame along the width direction, and a plurality of connecting plates are arranged at uniform intervals; A plurality of reinforcing ribs are provided on each of the connecting plates along the length direction of the frame, and the distance between the surface of the reinforcing ribs and the surface of the frame is equal to the thickness of the liquid cooling bottom plate flow channel.
4. The liquid cooling radiator for energy storage battery pack according to any one of claims 1 to 3, characterized in that: The metal support plate is symmetrically provided with lifting parts at both ends of two opposite side surfaces for lifting the radiator.
5. The liquid cooling radiator for energy storage battery pack according to any one of claims 1 to 3, characterized in that: The flow channels near the edge areas of the liquid cooling base plate are narrower, and the central area of the liquid cooling base plate has multiple evenly distributed and wider flow channels, forming a reserved space for installing heat dissipation fins; multiple heat dissipation fins are arranged in the corresponding reserved space.
6. The liquid cooling radiator for energy storage battery pack according to any one of claims 2 to 3, characterized in that: The energy storage battery pack liquid cooling radiator further includes: two cross beams, the two cross beams being respectively arranged at two edges of the liquid cooling cover plate along the length direction; Both ends of the crossbeam are located on the frame, and the crossbeam is further provided with a mounting portion for mounting a battery pack.
7. The liquid cooling radiator for energy storage battery pack according to any one of claims 1 to 3, characterized in that: The liquid cooling base plate, the liquid cooling cover plate and the heat dissipation fins are made of 3 series aluminum plates.
8. The liquid cooling radiator for energy storage battery pack according to claim 7, characterized in that: Each of the heat dissipation fins is welded to the corresponding flow channel by brazing.
9. An energy storage component, characterized in that: The energy storage assembly comprises: a battery pack and the energy storage battery pack liquid-cooling radiator according to any one of claims 1 to 8, wherein the battery pack is arranged on the energy storage battery pack liquid-cooling radiator.
10. An energy storage container, characterized in that: The energy storage container includes the energy storage assembly according to claim 9.