Liquid cooling plate, energy storage device and energy storage system

Abstract

The utility model discloses a liquid cooling plate, an energy storage device and an energy storage system, and relates to the technical field of battery cooling. The liquid cooling plate comprises a bearing part which is of an inverted T-shaped structure and is provided with a partition plate, a first bearing plate and a second bearing plate, the first bearing plate and the second bearing plate are located on the two sides of the partition plate, and pipe grooves are formed in the bearing faces of the first bearing plate and the second bearing plate and the surface of the partition plate; the liquid cooling pipe is limited in the pipe groove in the bearing part and comprises a first bottom face pipe section located on the first bearing plate, a second bottom face pipe section located on the second bearing plate and a vertical face pipe section located on the surface of the partition plate.

Description

Technical Field

[0001] This application relates to the field of battery cooling technology, and more specifically, to a liquid cooling plate, an energy storage device, and an energy storage system. Background Technology

[0002] A rechargeable battery, also known as a secondary battery or storage battery, is a battery that can be recharged after being discharged to reactivate its active materials and continue to be used. The recyclable nature of rechargeable batteries has made them a primary power source for electrical devices. As the demand for rechargeable batteries increases, so too do people's requirements for their performance.

[0003] In related technologies, energy storage devices include a battery housing, a liquid cooling plate, and a battery module. The liquid cooling plate is located at the bottom of the battery housing, and the battery module, which is composed of secondary batteries, is supported on the liquid cooling plate. The liquid cooling plate cools the secondary batteries at the bottom of the battery module, thereby ensuring the charging and discharging performance of the secondary batteries.

[0004] However, as the charge and discharge rates of secondary batteries increase, the heat generated by the secondary batteries also increases, making it difficult for liquid cooling plates in related technologies to effectively cool the secondary batteries. Utility Model Content

[0005] A primary objective of this application is to provide a liquid cooling plate, energy storage device, and energy storage system that effectively improve cooling performance.

[0006] To achieve the above-mentioned objectives, this application adopts the following technical solution:

[0007] According to one aspect of this application, a liquid cooling plate is provided, comprising: a support member having an inverted T-shaped structure and having a partition plate, and a first support plate and a second support plate located on both sides of the partition plate, wherein the support surfaces of the first support plate and the second support plate, and the surface of the partition plate, are all provided with tube grooves; and a liquid cooling pipe confined within the tube grooves on the support member, and including a first bottom tube segment located on the first support plate, a second bottom tube segment located on the second support plate, and a vertical tube segment located on the surface of the partition plate.

[0008] In this embodiment, by setting a support member having a first support plate and a second support plate, and by using a first bottom pipe section on the first support plate, a second bottom pipe section on the second support plate, and a vertical pipe section on the surface of the partition plate, a multi-face cooling effect of the liquid cooling plate is achieved. Thus, when the liquid cooling plate is assembled into the battery box, multi-face cooling of the battery module on the first support plate and the second support plate can be achieved to ensure the cooling effect of the battery module.

[0009] According to one embodiment of this application, the partition plate is a single-layer plate structure, the first surface of the partition plate facing the first bearing plate has a pipe groove, and the vertical pipe section includes a first vertical pipe section located on the first surface of the partition plate.

[0010] According to one embodiment of this application, the second surface of the partition plate facing the second support plate has a pipe groove, and the vertical pipe section further includes a second vertical pipe section located on the second surface of the partition plate.

[0011] In this embodiment, the side cooling of the battery modules on the first and second support plates can be achieved simultaneously through the first vertical pipe section and the second vertical pipe section, while ensuring the uniformity of cooling of the battery modules in the first and second support areas.

[0012] According to one embodiment of this application, the partition plate includes a first vertical plate and a second vertical plate disposed opposite to each other; the surfaces of the first vertical plate and the second vertical plate opposite to each other are provided with pipe grooves, and the vertical pipe segment includes a first vertical pipe segment located on the surface of the first vertical plate and a second vertical pipe segment located on the surface of the second vertical plate.

[0013] In this embodiment, the side cooling of the battery modules on the first and second support plates can be achieved by the first vertical pipe section and the second vertical pipe section respectively, while ensuring the uniformity of cooling of the battery modules in the first and second support areas.

[0014] According to one embodiment of this application, the bottom of the groove on the first vertical plate forms a first protrusion facing the second vertical plate, and the bottom of the groove on the second vertical plate forms a second protrusion facing the first vertical plate, wherein the first protrusion and the second protrusion are staggered.

[0015] In this embodiment, the staggered distribution of the first protrusion and the second protrusion can effectively shorten the distance between the opposing surfaces of the first vertical plate and the second vertical plate, thereby facilitating the reduction of the structural size of the liquid cooling plate.

[0016] According to one embodiment of this application, the height of the first protrusion is equal to the height of the second protrusion, and equal to the distance between the first vertical plate and the second vertical plate.

[0017] In this embodiment, the first vertical pipe section can directly cool the battery module on the first carrier plate and indirectly cool the battery module on the second carrier plate, and the second vertical pipe section can directly cool the battery module on the second carrier plate and indirectly cool the battery module on the first carrier plate, thereby improving the cooling effect of the battery modules on the first and second carrier plates and ensuring the uniformity of cooling of the battery modules on the first and second carrier plates.

[0018] According to one embodiment of this application, the liquid cooling plate further includes an elastic element located between the first vertical plate and the second vertical plate.

[0019] In this embodiment, the elastic element provides elastic buffering between the first vertical plate and the second vertical plate, preventing the connection between the first vertical pipe section and the second vertical pipe section from breaking when the first vertical plate and / or the second vertical plate are subjected to external impact.

[0020] According to one embodiment of this application, the elastic element is thermally conductive foam.

[0021] According to one embodiment of this application, the support member includes an L-shaped first cold plate and a second cold plate; the first cold plate includes a first support plate and a first vertical plate, and the second cold plate includes a second support plate and a second vertical plate.

[0022] In this embodiment, by setting the L-shaped first cold plate and second cold plate, the structure of the support component is simplified, thereby simplifying the structure of the liquid cooling plate and improving the manufacturing efficiency of the liquid cooling plate.

[0023] According to one embodiment of this application, the first bottom pipe section, the second bottom pipe section, and the vertical pipe section are an integrally bent pipe structure.

[0024] In this embodiment, the setting of liquid cooling joints between multiple pipe sections is avoided, thereby avoiding fluid leakage in the liquid cooling pipe and improving the safety of the liquid cooling plate during cooling; at the same time, the liquid cooling pipe can be pre-bent as needed to improve the manufacturing efficiency of the liquid cooling plate.

[0025] According to one embodiment of this application, the liquid cooling pipe is at most flush with the opening of the pipe groove.

[0026] In this embodiment, the deformation of the first bottom tube segment and the second bottom tube segment due to the compression of the battery module can be avoided when the battery module is placed on the first support plate and the second support plate.

[0027] According to one aspect of this application, an energy storage device is provided, comprising: a battery housing; a liquid cooling plate as described in the above aspect, located at the bottom of the battery housing; and a plurality of battery modules housed within the battery housing, including at least a first battery module and a second battery module, wherein the first battery module and the second battery module are respectively supported on a first support plate and a second support plate.

[0028] According to one aspect of this application, an energy storage system is provided, the energy storage system including the energy storage device described in the above aspect.

[0029] According to one aspect of this application, an electrical device is provided, the electrical device including the energy storage device described in the above aspect, the energy storage device supplying power to the electrical device.

[0030] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0031] The above and other features and advantages of this application will become more apparent from a detailed description of exemplary embodiments thereof with reference to the accompanying drawings.

[0032] Figure 1 This is a schematic diagram of an energy storage system according to an exemplary embodiment.

[0033] Figure 2 This is a schematic diagram of a partial explosion structure of an energy storage device according to an exemplary embodiment.

[0034] Figure 3 This is a schematic diagram of the axial structure of a liquid cooling plate according to an exemplary embodiment.

[0035] Figure 4 This is a schematic diagram of the axial structure of a carrier according to an exemplary embodiment.

[0036] Figure 5 This is a schematic diagram of the axial structure of another liquid cooling plate according to an exemplary embodiment.

[0037] Figure 6 This is a schematic diagram of the axial structure of another liquid cooling plate according to an exemplary embodiment.

[0038] Figure 7 This is a schematic diagram of the axial structure of a carrier according to an exemplary embodiment.

[0039] Figure 8 This is a schematic diagram of the axial structure of another carrier according to an exemplary embodiment.

[0040] Figure 9 This is a side view structural schematic diagram of another carrier according to an exemplary embodiment.

[0041] Figure 10 yes Figure 9 A partial structural schematic diagram of the support structure is shown.

[0042] Figure 11 This is a side view structural schematic diagram of another carrier according to an exemplary embodiment.

[0043] Figure 12yes Figure 11 A partial structural schematic diagram of the support structure is shown.

[0044] The reference numerals in the attached figures are explained as follows:

[0045] 100. Energy storage device; 200. Power conversion device; 300. User load;

[0046] 10. Battery housing; 20. Liquid cooling plate; 30. Battery module;

[0047] 11. Lower housing; 31. First battery module; 32. Second battery module;

[0048] 21. Load-bearing component; 22. Liquid cooling pipe; 23. Water inlet connector; 24. Water outlet connector; 25. Flexible component;

[0049] 211. Partition plate; 212. Base plate; 213. Pipe trench;

[0050] 2111, First vertical plate; 2112, Second vertical plate; 2113, First protrusion; 2114, Second protrusion;

[0051] 2121, First bearing plate; 2122, Second bearing plate;

[0052] 221. First bottom surface pipe section; 222. Second bottom surface pipe section; 223. Vertical surface pipe section; 224. First vertical surface pipe section; 225. Second vertical surface pipe section. Detailed Implementation

[0053] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this application will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0054] Because the energy people need is highly time- and space-dependent, in order to make rational use of energy and improve its utilization rate, it is necessary to use a medium or device to store one form of energy in the same form or convert it into another form of energy, and then release it in a specific form of energy based on future applications.

[0055] Currently, green energy mainly includes solar energy and wind energy. However, solar energy and wind energy generally suffer from strong intermittency and large fluctuations, which can cause voltage instability in the green power grid (insufficient electricity during peak demand and excessive electricity during off-peak demand). Unstable voltage can damage the power grid, and therefore may lead to the problem of "curtailment of wind and solar power" due to insufficient electricity demand or insufficient grid capacity.

[0056] To solve the problem of insufficient electricity demand or inadequate grid capacity, we must rely on energy storage devices. These devices convert electrical energy into other forms of energy through physical or chemical means and store it. When needed, the stored energy is converted back into electrical energy and released. Simply put, an energy storage device is like a large "power bank," storing electrical energy when solar and wind power are abundant and releasing it when required.

[0057] Current energy storage applications are quite widespread, including generation-side energy storage, grid-side energy storage, renewable energy grid-connected energy storage, and user-side energy storage. The corresponding types of energy storage devices include:

[0058] (1) Large energy storage containers used in grid-side energy storage scenarios can serve as high-quality active and reactive power regulation power sources in the grid, enabling load matching of electrical energy in time and space, enhancing the absorption capacity of renewable energy, and playing a significant role in grid system backup, alleviating peak load power supply pressure, and peak regulation and frequency regulation.

[0059] (2) Small and medium-sized energy storage cabinets used in commercial and industrial energy storage scenarios (banks, shopping malls, etc.) and small household energy storage boxes used in residential energy storage scenarios primarily operate under the "peak shaving and valley filling" mode. Because there are significant price differences in electricity consumption between peak and off-peak periods, users with energy storage devices typically charge them during off-peak hours to reduce costs; during peak hours, they release the stored electricity for use, thus saving on electricity bills. Furthermore, in remote areas and regions prone to natural disasters such as earthquakes and hurricanes, the presence of household energy storage devices effectively provides backup power for users and the power grid, eliminating the inconvenience caused by frequent power outages due to disasters or other reasons.

[0060] This application provides an energy storage system, which includes an energy storage device for storing or supplying electrical energy.

[0061] Taking home energy storage as an example in user-side energy storage, Figure 1This diagram illustrates an energy storage system according to an embodiment of this application. The system includes an energy storage device 100, a power conversion device 200 (e.g., a photovoltaic panel), and user loads 300 (e.g., streetlights, household appliances). The power conversion device 200 is electrically connected to the energy storage device 100, and the energy storage device 100 is electrically connected to the user loads 300. The energy storage device 100 is a small energy storage box that can be wall-mounted on an outdoor wall. Specifically, the power conversion device 200 converts solar energy into electrical energy, which is then stored in the energy storage device 100. This stored energy is then supplied to the user loads 300 during peak electricity price periods or during power outages / outages.

[0062] The energy storage device 100 can be a battery pack, battery box, or battery system composed of individual battery cells. The individual battery cells can be secondary batteries such as lithium-ion batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, and magnesium-ion batteries, and can be cylindrical, flat, cuboid, etc., without limitation in the embodiments of this application. Furthermore, the battery cells can utilize the chemical reactions or changes of the energy storage medium (chemical elements) to achieve the charging and discharging process. Simply put, the electrical energy generated by solar or wind power is stored in the battery cells through the chemical reactions or changes of the energy storage medium. When the external electrical energy usage reaches its peak, the electrical energy stored in the battery cells is released for use or transferred for later use through the chemical reactions or changes of the energy storage medium.

[0063] In some implementations, such as Figure 2 As shown, the energy storage device 100 includes a battery housing 10, a liquid cooling plate 20, and multiple battery modules 30; the liquid cooling plate 20 is located at the bottom of the battery housing 10, and the multiple battery modules 30 are housed inside the battery housing 10 and supported on the liquid cooling plate 20.

[0064] The battery housing 10 includes a lower housing 11 and a housing cover (not shown in the figure), and the housing cover is fixedly connected to the lower housing 11 to form a battery compartment. The liquid cooling plate 20 and multiple battery modules 30 are located inside the battery compartment.

[0065] The battery module 30 includes multiple battery cells, meaning that the battery module 30 is composed of multiple battery cells. In this case, the battery module 30 can be assembled by assembling the multiple battery cells individually. Alternatively, the battery module 30 includes a pair of fixed end plates arranged opposite each other, and multiple battery cells located between the pair of fixed end plates. The multiple battery cells and the pair of fixed end plates can be fixed by binding tools such as cable ties. In this case, the battery module 30 can be assembled by assembling the multiple battery cells as a whole.

[0066] In related technologies, liquid cooling plates 20 are disposed at the bottom of multiple battery modules 30 to facilitate heat exchange at the bottom of the battery cells and achieve cooling of the battery cells. However, as the charge and discharge rates of the battery cells increase, the heat generated by the battery cells also increases accordingly. When cooling is only performed at the bottom of the battery cells, it is difficult to ensure that the battery cells operate at a suitable temperature.

[0067] This application provides a liquid cooling plate 20, which includes a multi-faceted cooling structure composed of a support member 21 and a liquid cooling pipe 22. Thus, when the liquid cooling plate 20 is applied to the energy storage device 100, it can achieve multi-faceted cooling of the battery module 30, thereby improving the cooling effect on the battery module 30 and ensuring that the individual battery cells included in the battery module 30 are charged and discharged at appropriate temperatures.

[0068] For example, such as Figure 2 As shown, the liquid cooling plate 20 has a partition plate 211, and a first support plate 2121 and a second support plate 2122 located on both sides of the partition plate 211. The plurality of battery modules 30 include at least a first battery module 31 and a second battery module 32. The liquid cooling plate 20 is located at the bottom of the battery box 10, and the first battery module 31 and the second battery module 32 are respectively supported on the first support plate 2121 and the second support plate 2122.

[0069] The first support plate 2121, the second support plate 2122, and the surface of the partition plate 211 are respectively provided with a first bottom pipe section 221, a second bottom pipe section 222, and a vertical pipe section 223. This enables bottom and side cooling of the first battery module 31 and the second battery module 32, thereby improving the cooling effect of the first battery module 31 and the second battery module 32 and ensuring that the battery cells included in the first battery module 31 and the second battery module 32 are charged and discharged at a suitable temperature.

[0070] In some implementations, such as Figure 3 and Figure 4 As shown, the liquid cooling plate 20 includes: a support member 21, which has an inverted T-shaped structure and a partition plate 211, and a first support plate 2121 and a second support plate 2122 located on both sides of the partition plate 211. The support surfaces of the first support plate 2121 and the second support plate 2122, as well as the surface of the partition plate 211, all have tube grooves 213; and a liquid cooling pipe 22, which is confined within the tube grooves 213 on the support member 21, and includes a first bottom tube section 221 located on the first support plate 2121, a second bottom tube section 222 located on the second support plate 2122, and a vertical tube section 223 located on the surface of the partition plate 211.

[0071] In this embodiment, by setting a support member 21 with a first support plate 2121 and a second support plate 2122, and by using a first bottom pipe section 221 on the first support plate 2121, a second bottom pipe section 222 on the second support plate 2122, and a vertical pipe section 223 on the surface of the partition plate 211, a multi-faceted cooling effect of the liquid cooling plate 20 is achieved. Thus, when the liquid cooling plate 20 is assembled in the battery box 10, multi-faceted cooling of the battery module 30 on the first support plate 2121 and the second support plate 2122 can be achieved, so as to ensure the cooling effect of the liquid cooling plate 20 on the battery module 30.

[0072] The vertical pipe section 223 is connected to one end of the first bottom pipe section 221 and one end of the second bottom pipe section 222 at both ends, and the other ends of the first bottom pipe section 221 and the second bottom pipe section 222 are respectively provided with a water inlet connector 23 and a water outlet connector 24, so as to facilitate the connection between the liquid cooling pipe 22 and the external circulation pipe, thereby ensuring the circulation of fluid in the liquid cooling pipe 22.

[0073] When the liquid cooling pipe 22 is confined within the groove 213 on the carrier, the liquid cooling pipe 22 may protrude from the groove opening of the groove 213, or the liquid cooling pipe 22 may be flush with the groove opening of the groove 213, or the liquid cooling pipe 22 may be lower than the groove opening of the groove 213.

[0074] Preferably, the liquid cooling pipe 22 is at most flush with the opening of the pipe groove 213, that is, the liquid cooling pipe 22 is flush with the opening of the pipe groove 213, or the liquid cooling pipe 22 is lower than the opening of the pipe groove 213, so as to avoid the first bottom pipe section 221 and the second bottom pipe section 222 being deformed due to the compression of the battery module 30 when the battery module 30 is placed on the first support plate 2121 and the second support plate 2122.

[0075] Furthermore, the bearing surfaces of the first support plate 2121 and the second support plate 2122, as well as the surface of the partition plate 211, are all provided with a filling layer. The filling layer covers the liquid cooling pipe 22 and fills the pipe groove 213. In this way, the filling layer ensures effective contact between the liquid cooling pipe 22 and the battery module 30 on the first support plate 2121 and the second support plate 2122, while ensuring that the liquid cooling pipe 22 and the battery module 30 have a sufficiently large heat exchange area.

[0076] The support component 21 can be made of a material with good thermal conductivity, such as a silver support structure or a copper support structure, so that while direct heat transfer is achieved between the liquid cooling pipe 22 and the battery module 30, indirect heat transfer is achieved between the liquid cooling pipe 22 and the battery module 30 through the support component 21, thereby ensuring the cooling effect of the liquid cooling plate 20 on the battery module 30.

[0077] In some embodiments, the liquid cooling pipe 22 is an integrally bent pipe structure, that is, the first bottom pipe section 221, the second bottom pipe section 222, and the vertical pipe section 223 are an integrally bent pipe structure. This avoids the setting of liquid cooling joints between multiple pipe sections, thereby avoiding fluid leakage in the liquid cooling pipe 22 and improving the safety of the liquid cooling plate 20 during cooling; at the same time, the liquid cooling pipe 22 can be pre-bent as needed to improve the manufacturing efficiency of the liquid cooling plate 20.

[0078] The liquid cooling pipe 22 can be made of metal, plastic, or other materials. A certain force can be applied at the connection points of each pipe section to allow the liquid cooling pipe 22 to be assembled within the groove 213 on the support member 21 based on its elastic deformation. Furthermore, the edge of the groove 213 can be chamfered (e.g., rounded chamfer) to reduce friction between the pipe wall and the groove edge during assembly of the liquid cooling pipe 22, thereby extending the service life of the liquid cooling plate 20.

[0079] Of course, in this application, the liquid cooling pipe 22 can be an integrally bent pipe structure, or it can be a pipe joint formed by connecting the integrally bent first bottom pipe section 221, second bottom pipe section 222 and vertical pipe section 223 through a liquid cooling connector, or a flexible hose structure directly coiled in the pipe groove 213 on the support member 21, etc. The embodiments of this application do not limit this.

[0080] In this embodiment of the application, the inverted T-shaped support member 21 includes a base plate 212 and a partition plate 211. The partition plate 211 is fixedly connected to the base plate 212 and divides the base plate 212 into a first support plate 2121 and a second support plate 2122.

[0081] The base plate 212 is an integral structure, in which case the partition plate 211 is erected on the base plate 212 and divides the base plate 212 into a first support plate 2121 and a second support plate 2122 located on both sides of the partition plate 211; or the base plate 212 is a split structure including the first support plate 2121 and the second support plate 2122, and both the first support plate 2121 and the second support plate 2122 are fixedly connected to the partition plate 211.

[0082] In some implementations, such as Figure 3 or Figure 4 As shown, the partition plate 211 is a single-layer plate structure.

[0083] When the base plate 212 is an integral structure, the partition plate 211 is erected on the base plate 212; when the base plate 212 is a split structure including the first support plate 2121 and the second support plate 2122, the bottom edge of the partition plate 211 is fixedly connected to both the first support plate 2121 and the second support plate 2122.

[0084] Optionally, a groove 213 can be formed on the first surface of the partition plate 211 (i.e., the surface facing the first support plate 2121) by a stamping process or the like. Figure 3 As shown, the vertical pipe section 223 includes a first vertical pipe section 224 located on the first surface of the partition plate 211.

[0085] The first bottom pipe section 221, the first vertical pipe section 224, and the second bottom pipe section 222 are connected in sequence. Thus, when fluid flows through the first vertical pipe section 224, heat exchange occurs through direct contact between the first vertical pipe section 224 and the battery module 30 on the first support plate 2121, and simultaneously through indirect contact between the first vertical pipe section 224 and the battery module 30 on the second support plate 2122, achieving lateral cooling of the battery modules 30 on both the first and second support plates 2121 and 2122.

[0086] Optionally, a tube groove 213 can be formed on the first surface of the partition plate 211 (i.e., the surface facing the first support plate 2121) by a stamping process, and a protrusion can be formed on the second surface of the partition plate 211 (the surface of the partition plate 211 facing the second support plate 2122) through the bottom of the tube groove 213, and the tube groove 213 located on the second surface can be formed by the protrusion. In this case, the vertical tube section 223 includes a first vertical tube section 224 located on the first surface of the partition plate 211 and a second vertical tube section 225 located on the second surface of the partition plate 211.

[0087] The first bottom pipe section 221, the first vertical pipe section 224, the second vertical pipe section 225, and the second bottom pipe section 222 are connected in sequence. Thus, when the fluid flows through the first vertical pipe section 224 and the second vertical pipe section 225, heat exchange can occur through direct contact between the first vertical pipe section 224 and the battery module 30 on the first support plate 2121, and through indirect contact (heat transfer medium vertical plate) between the first vertical pipe section 224 and the battery module 30 on the second support plate 2122; and through direct contact between the second vertical pipe section 225 and the battery module 30 on the second support plate 2122, and through indirect contact (heat transfer medium vertical plate) between the second vertical pipe section 225 and the battery module 30 on the first support plate 2121, thereby achieving lateral cooling of the battery module 30 on the first support plate 2121 and the second support plate 2122, while ensuring the uniformity of cooling of the battery module 30 in the first support area and the second support area.

[0088] In other implementations, such as Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the partition plate 211 includes a first vertical plate 2111 and a second vertical plate 2112 arranged opposite to each other; the surfaces of the first vertical plate 2111 and the second vertical plate 2112 opposite to each other have pipe grooves 213, and the vertical pipe section 223 includes a first vertical pipe section 224 located on the surface of the first vertical plate 2111 and a second vertical pipe section 225 located on the surface of the second vertical plate 2112.

[0089] Specifically, a groove 213 can be formed on the opposing surfaces of the first vertical plate 2111 and the second vertical plate 2112 through a stamping process, thereby achieving the limiting assembly of the first vertical pipe section 224 on the first vertical plate 2111 and the limiting assembly of the second vertical pipe section 225 on the second vertical plate 2112. In this way, when fluid flows through the first vertical pipe section 224 and the second vertical pipe section 225, heat exchange can occur through direct contact between the first vertical pipe section 224 and the battery module 30 on the first support plate 2121, and through direct contact between the second vertical pipe section 225 and the battery module 30 on the second support plate 2122. This achieves lateral cooling of the battery module 30 on the first support plate 2121 and the second support plate 2122, while ensuring the uniformity of cooling of the battery module 30 in the first and second support areas.

[0090] Specifically, regarding the partition plate 211, which includes the first vertical plate 2111 and the second vertical plate 2112, when the bottom plate 212 is an integral structure, the first vertical plate 2111 and the second vertical plate 2112 are erected opposite to each other on the bottom plate 212; when the bottom plate 212 is a split structure including the first support plate 2121 and the second support plate 2122, the first vertical plate 2111 and the second vertical plate 2112 are fixedly connected to the first support plate 2121 and the second support plate 2122, respectively, and the first support plate 2121 and the first vertical plate 2111 are connected to form an L-shaped first cold plate, and the second support plate 2122 and the second vertical plate 2112 are connected to form an L-shaped second cold plate.

[0091] As for the L-shaped first and second cold plates, the first and second cold plates can be an integral structure, and the first vertical plate 2111 and the second vertical plate 2112 can be locked with fixing bolts to achieve a fixed connection between the first and second cold plates. Alternatively, after assembling the liquid cooling pipe 22, the first and second cold plates can be connected by limiting the position between the integrally bent first vertical pipe section 224 and the second vertical pipe section 225.

[0092] In some implementations, such as Figure 9 and Figure 10 As shown, the liquid cooling plate 20 also includes an elastic element 25, which is located between the first vertical plate 2111 and the second vertical plate 2112.

[0093] Thus, by setting the elastic element 25, elastic buffering is achieved between the first vertical plate 2111 and the second vertical plate 2112, avoiding the situation where the connection between the first vertical pipe section 224 and the second vertical pipe section 225 is broken when the first vertical plate 2111 and / or the second vertical plate 2112 is subjected to external force impact.

[0094] The elastic element 25 can be a rigid structural component (such as a spring or sheet) or a flexible structural component (such as elastic foam or thermally conductive foam). Taking a flexible structural component as an example, when the elastic element 25 is thermally conductive foam, it can not only increase the reliability of the elastic buffer between the first vertical plate 2111 and the second vertical plate 2112, but also realize the heat conduction between the first vertical plate 2111 and the second vertical plate 2112, and avoid condensation on the opposite surfaces of the first vertical plate 2111 and the second vertical plate 2112.

[0095] In some implementations, such as Figure 9 and Figure 10 As shown, the opposing surfaces of the first vertical plate 2111 and the second vertical plate 2112 are both planes.

[0096] The first vertical plate 2111 and the second vertical plate 2112 have a certain thickness to ensure the setting of the pipe groove 213 on the first vertical plate 2111 and the second vertical plate 2112. At the same time, based on the sum of the thicknesses of the first vertical plate 2111 and the second vertical plate 2112, the connection between the first vertical pipe section 224 and the second vertical pipe section 225 can be guaranteed to have a large bending radius.

[0097] In some implementations, such as Figure 11 and Figure 12 As shown, the bottom of the groove 213 on the first vertical plate 2111 forms a first protrusion 2113 facing the second vertical plate 2112, and the bottom of the groove 213 on the second vertical plate 2112 forms a second protrusion 2114 facing the first vertical plate 2111. The first protrusion 2113 and the second protrusion 2114 are staggered.

[0098] Thus, by staggering the first protrusion 2113 and the second protrusion 2114, the distance between the opposing surfaces of the first vertical plate 2111 and the second vertical plate 2112 can be effectively shortened, thereby facilitating the reduction of the structural dimensions of the liquid cooling plate 20.

[0099] Optionally, the height of the first protrusion 2113 is equal to the height of the second protrusion 2114, and is equal to the distance between the first vertical plate 2111 and the second vertical plate 2112.

[0100] The trajectory distribution of the first protrusion 2113 is the same as that of the first vertical tube segment 224 on the first vertical plate 2111, and the trajectory distribution of the second protrusion 2114 is the same as that of the second vertical tube segment 225 on the second vertical plate 2112. Therefore, when the heights of the first protrusion 2113 and the second protrusion 2114, and the distance between the first vertical plate 2111 and the second vertical plate 2112 are all equal, contact between the first protrusion 2113 and the second vertical plate 2112, and contact between the second protrusion 2114 and the first vertical plate 2111 can be achieved. This allows for heat exchange between the first vertical tube segment 224 and the battery module 30 on the first support plate 2121, and also enables… The heat exchange between the battery modules 30 on the first vertical pipe section 224, the first vertical plate 2111, the second vertical plate 2112, and the second support plate 2122, as well as the heat exchange between the battery modules 30 on the second vertical pipe section 225 and the second support plate 2122, is realized. This improves the cooling effect of the battery modules 30 on the first support plate 2121 and the second support plate 2122, while ensuring the uniformity of cooling of the battery modules 30 on the first support plate 2121 and the second support plate 2122.

[0101] In the embodiments of this application, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0102] In the description of the embodiments of this application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0103] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the implementation of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0104] The above are merely preferred embodiments of the implementation methods of this application and are not intended to limit the implementation methods of this application. For those skilled in the art, various modifications and variations can be made to the implementation methods of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the implementation methods of this application should be included within the protection scope of the implementation methods of this application.

Claims

1. A liquid-cooled plate, characterized in that, include: The support member (21) has an inverted T-shaped structure and has a partition plate (211), and a first support plate (2121) and a second support plate (2122) located on both sides of the partition plate (211). The support surfaces of the first support plate (2121) and the second support plate (2122), as well as the surface of the partition plate (211), all have tube grooves (213). The liquid cooling pipe (22) is confined within the pipe groove (213) on the support member (21) and includes a first bottom pipe section (221) on the first support plate (2121), a second bottom pipe section (222) on the second support plate (2122), and a vertical pipe section (223) on the surface of the partition plate (211).

2. The liquid cooling plate as described in claim 1, characterized in that, The partition plate (211) is a single-layer plate structure. The first surface of the partition plate (211) facing the first bearing plate (2121) has a pipe groove (213). The vertical pipe section (223) includes a first vertical pipe section (224) located on the first surface of the partition plate (211).

3. The liquid cooling plate as described in claim 2, characterized in that, The partition plate (211) has a pipe groove (213) on its second surface facing the second support plate (2122), and the vertical pipe section (223) further includes a second vertical pipe section (225) located on the second surface of the partition plate (211).

4. The liquid cooling plate as described in claim 1, characterized in that, The partition plate (211) includes a first vertical plate (2111) and a second vertical plate (2112) arranged opposite to each other; The surfaces of the first vertical plate (2111) and the second vertical plate (2112) facing away from each other have pipe grooves (213). The vertical pipe section (223) includes a first vertical pipe section (224) located on the surface of the first vertical plate (2111) and a second vertical pipe section (225) located on the surface of the second vertical plate (2112).

5. The liquid cooling plate as described in claim 4, characterized in that, The bottom of the groove (213) on the first vertical plate (2111) forms a first protrusion (2113) facing the second vertical plate (2112), and the bottom of the groove (213) on the second vertical plate (2112) forms a second protrusion (2114) facing the first vertical plate (2111). The first protrusion (2113) and the second protrusion (2114) are staggered.

6. The liquid cooling plate as described in claim 5, characterized in that, The height of the first protrusion (2113) is equal to the height of the second protrusion (2114) and equal to the distance between the first vertical plate (2111) and the second vertical plate (2112).

7. The liquid-cooled plate as described in claim 4, characterized in that, The liquid cooling plate (20) also includes an elastic element (25), which is located between the first vertical plate (2111) and the second vertical plate (2112).

8. The liquid cooling plate as described in claim 7, characterized in that, The elastic element (25) is thermally conductive foam.

9. The liquid-cooled plate as described in any one of claims 4-8, characterized in that, The support member (21) includes an L-shaped first cold plate and a second cold plate; The first cold plate includes a first support plate (2121) and a first vertical plate (2111), and the second cold plate includes a second support plate (2122) and a second vertical plate (2112).

10. The liquid-cooled plate according to any one of claims 1-8, characterized in that, The first bottom pipe section (221), the second bottom pipe section (222), and the vertical pipe section (223) are an integrally bent pipe structure.

11. The liquid-cooled plate according to any one of claims 1-8, characterized in that, The liquid cooling pipe (22) is at most flush with the opening of the groove (213).

12. An energy storage device, characterized in that, include: Battery housing (10); The liquid cooling plate (20) according to any one of claims 1-11 is located at the bottom of the battery housing (10); Multiple battery modules (30) are housed within the battery housing (10), including at least a first battery module (31) and a second battery module (32), with the first battery module (31) and the second battery module (32) respectively supported on the first support plate (2121) and the second support plate (2122).

13. An energy storage system, characterized in that, The energy storage system includes the energy storage device (100) as described in claim 12.

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