High-efficiency liquid cooling device for solid-state battery module

Abstract

The utility model belongs to the technical field of liquid cooling heat dissipation of battery modules, and discloses an efficient solid-state battery module liquid cooling device which comprises a box body, cooling channels are symmetrically formed in the box body, the head end and the tail end of the box body are each provided with an interface communicated with the corresponding cooling channel, each cooling channel is of an independent design, and the cooling channels are communicated with the interfaces. Flow mixing plates attached to one side of the cooling channel are arranged in the cooling channel in a staggered mode. Through the design of the independent cooling channel and the flow mixing plate, the whole device can quickly and uniformly cool the battery module, and the local overheating phenomenon is effectively prevented.

Description

Technical Field

[0001] The present application relates to the technical field of liquid cooling and heat dissipation of battery modules, and more specifically, to a high-efficiency liquid cooling device for solid-state battery modules. Background Art

[0002] As mobile devices, electric vehicles, and large-scale energy storage systems place increasing demands on battery performance, heat dissipation is becoming a critical factor limiting their performance and safety. Traditional battery cooling technologies currently on the market primarily include air cooling, metal conduction cooling, and liquid cooling. However, these traditional cooling technologies have several shortcomings, particularly when dealing with battery systems with high energy density and high power output.

[0003] Air cooling relies on natural or forced convection to dissipate heat, but its cooling efficiency is relatively low and cannot meet the heat dissipation requirements of high-power batteries under heavy loads. Furthermore, air cooling struggles to achieve uniform cooling within the battery, which can easily lead to localized overheating.

[0004] Although metal conduction cooling has good thermal conductivity, it is heavy and has a complex layout in the battery module, making it difficult to achieve precise temperature control of the battery cells.

[0005] Although liquid cooling offers higher heat exchange efficiency than air cooling, traditional liquid cooling systems still have some issues, such as uneven coolant flow, low cooling efficiency, high system complexity, and high cost. Furthermore, traditional liquid cooling systems can become clogged or leak after prolonged operation, impacting battery stability and service life.

[0006] In high-energy-density battery systems, the rapid accumulation of heat can lead to thermal runaway, a phenomenon in which the temperature inside the battery rises sharply, triggering a chain reaction that may eventually cause battery damage or even fire and explosion.

[0007] Operating batteries in high-temperature environments accelerates aging, reducing their cycle life and energy retention. Furthermore, batteries also exhibit different performance at different temperatures, and uneven temperature distribution can affect the overall performance of the battery pack.

[0008] To this end, this application proposes a high-efficiency solid-state battery module liquid cooling device to solve the above-mentioned problems. Utility Model Content

[0009] In order to solve the above problems, the present application provides a high-efficiency solid-state battery module liquid cooling device.

[0010] The present application provides a high-efficiency solid-state battery module liquid cooling device that adopts the following technical solutions:

[0011] A high-efficiency solid-state battery module liquid cooling device, comprising:

[0012] The box body has cooling channels symmetrically arranged therein, and interfaces for connecting the cooling channels are provided at both ends of the box body. Each cooling channel is independently designed, and mixing plates are staggeredly arranged in the cooling channels to fit one side of the cooling channels.

[0013] Furthermore, the flow mixing plates located at the head end and the tail end of the cooling channel are straight plates with flat surfaces, and the flow mixing plate located in the middle is a curved plate with a curved surface.

[0014] The above technical solution helps to form an effective fluid dynamics effect in the cooling channel and improve the heat exchange efficiency between the coolant and the battery module.

[0015] Furthermore, the curved surface of the curved plate is opposite to the flow direction of the liquid cooling medium.

[0016] Through the above technical solution, the turbulence of the fluid can be increased to achieve the purpose of fully mixing the cooling medium and further enhance the heat exchange effect.

[0017] Furthermore, a direct current slot is provided on a side of the bent plate away from the bent surface thereof.

[0018] The above technical solution helps to guide the fluid to form a direct flow, reduce the residence time of the fluid in the cooling channel, and improve the cooling efficiency.

[0019] Furthermore, a fixing piece is provided on the bottom of the edge of the exterior of the box body in the same direction as the interface.

[0020] Through the above technical solution, the fixing plate can enhance the stability of the device, facilitate installation and fixation, and ensure the reliability of the cooling device during operation; at the same time, multiple boxes can be arranged in sequence on the same plane according to the size of the battery and the usage scenario to enhance the heat dissipation effect.

[0021] Furthermore, a heat exchange plate is provided on the top of the box body, and a contoured sealing gasket is provided between the heat exchange plate and the box body. The heat exchange plate, the contoured sealing gasket and the box body together constitute a heat dissipation cavity.

[0022] The above technical solution improves the heat dissipation efficiency, and the sealing of the heat dissipation cavity is ensured by the sealing gasket to prevent the leakage of coolant.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] Through the design of independent cooling channels and mixing plates, as well as the coordinated use of heat exchange plates and contoured sealing gaskets, the entire device can achieve rapid and uniform cooling of the battery modules, effectively preventing the occurrence of local overheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of this application;

[0026] Figure 2 This is a schematic diagram of the structure after removing the heat exchange plate in this application.

[0027] Explanation of the numbers in the figure: 1. Box body; 2. Interface; 3. Straight plate; 4. Bent plate; 5. DC trough; 6. Fixing plate; 7. Heat exchange plate; 8. Contoured sealing gasket. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application; it is obvious that the described embodiments are only part of the embodiments of the present application, not all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of this application.

[0029] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances. Example

[0031] The following is combined with Figure 1 -2 Provide further details on this application.

[0032] The present application discloses an efficient solid-state battery module liquid cooling device, comprising:

[0033] The box body 1 has cooling channels symmetrically arranged therein. The head and tail ends of the box body 1 are both provided with interfaces 2 connected to the cooling channels. Each cooling channel is independently designed, and mixing plates are staggeredly arranged in the cooling channel to fit one side of the cooling channel.

[0034] See also Figure 1 and Figure 2 The mixing plates at the head and tail ends of the cooling channel are straight plates 3 with flat surfaces, and the mixing plate at the middle position is a curved plate 4 with a curved surface.

[0035] The above technical solution helps to form an effective fluid dynamics effect in the cooling channel and improve the heat exchange efficiency between the coolant and the battery module.

[0036] See also Figure 1 and Figure 2 The curved surface of the bent plate 4 is opposite to the flow direction of the liquid cooling medium; the turbulence of the fluid can be increased to achieve the purpose of fully mixing the cooling medium and further enhance the heat exchange effect.

[0037] See also Figure 1 and Figure 2 A through-flow groove 5 is provided on the side of the bent plate 4 away from its own curved surface; this helps to guide the fluid to form a direct flow, reduce the residence time of the fluid in the cooling channel, and improve the cooling efficiency.

[0038] See also Figure 1 and Figure 2 A fixing piece 6 is provided at the bottom of the edge of the outside of the box body 1 in the same direction as the interface 2; the fixing piece 6 can enhance the stability of the device, facilitate installation and fixation, and ensure the reliability of the cooling device during operation; at the same time, multiple box bodies 1 can be arranged in sequence on the same plane according to the size of the battery and the usage scenario to enhance the heat dissipation effect.

[0039] See also Figure 1 and Figure 2 A heat exchange plate 7 is provided on the top of the box body 1, and a contoured sealing gasket 8 is provided between the heat exchange plate 7 and the box body 1. The heat exchange plate 7, the contoured sealing gasket 8 and the box body 1 together constitute a heat dissipation cavity; the heat dissipation efficiency is improved, and the sealing gasket ensures the sealing of the heat dissipation cavity to prevent leakage of the coolant.

[0040] The implementation principle of a high-efficiency solid-state battery module liquid cooling device in the embodiment of the present application is as follows:

[0041] The liquid cooling medium enters the cooling channel in the box body 1 through the interface 2.

[0042] The mixing plates in the cooling channel, including the straight plates 3 and the curved plates 4, adjust the flow direction and speed of the liquid cooling medium, increase the turbulence of the fluid, and improve the heat exchange efficiency.

[0043] The direct flow slot 5 guides part of the fluid to form a direct flow, which reduces the residence time and further improves the cooling efficiency.

[0044] The liquid cooling medium exchanges heat with the battery module in the cooling channel and absorbs heat.

[0045] The liquid cooling medium after absorbing heat is discharged through the interface 2 at the other end, completing a heat exchange cycle; through continuous circulation, the battery module is continuously cooled to ensure battery performance and safety.

[0046] It should be noted that, according to the size of the battery and the usage scenario, multiple boxes 1 can be arranged on the same plane and arranged in sequence, connected in series or in parallel to accommodate a larger battery pack.

[0047] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A high-efficiency solid-state battery module liquid cooling device, characterized in that: include: A box body (1) is provided with cooling channels symmetrically arranged in the box body (1), and interfaces (2) for communicating with the cooling channels are provided at both the head and tail ends of the box body (1), and each cooling channel is designed to be independent, and mixing plates are staggeredly arranged in the cooling channels and are attached to one side of the cooling channels.

2. The high-efficiency solid-state battery module liquid cooling device according to claim 1, characterized in that: The mixing plates located at the head end and the tail end of the cooling channel are straight plates (3) with flat surfaces, and the mixing plate located in the middle is a curved plate (4) with a curved surface.

3. The high-efficiency solid-state battery module liquid cooling device according to claim 2, characterized in that: The curved surface of the curved plate (4) is opposite to the flow direction of the liquid cooling medium.

4. The high-efficiency solid-state battery module liquid cooling device according to claim 2, characterized in that: A direct current slot (5) is provided on the side of the bent plate (4) away from the bent surface thereof.

5. The high-efficiency solid-state battery module liquid cooling device according to claim 1, characterized in that: A fixing piece (6) is provided at the bottom of the edge of the outside of the box body (1) in the same direction as the interface (2).

6. The high-efficiency solid-state battery module liquid cooling device according to claim 1, characterized in that: A heat exchange plate (7) is provided on the top of the box body (1), and a contoured sealing gasket (8) is provided between the heat exchange plate (7) and the box body (1). The heat exchange plate (7), the contoured sealing gasket (8) and the box body (1) together form a heat dissipation cavity.

Images