Energy storage module and energy storage device

Abstract

The application relates to the technical field of energy storage, in particular to an energy storage module and an energy storage device. The energy storage module comprises a box body, a battery module and a liquid cooling plate. The box body comprises a bottom plate and four side plates which are arranged around the bottom plate to form a containing space. The battery module is arranged in the containing space, and the liquid cooling plate is arranged between the bottom plate and the battery module. The bottom plate is provided with a window for exposing the liquid cooling plate. The bottom plate of the box body is designed to be windowed, so that the liquid cooling plate is directly exposed to the air, the contact area with the external environment is increased, and the heat dissipation efficiency is improved. Moreover, the heat generated by the battery module can be more effectively conducted away through the liquid cooling plate, the temperature and humidity in the box body are reduced, the dew point temperature is lowered, and the probability of condensation is reduced.

Description

Technical Field

[0001] This application relates to the field of energy storage technology, and in particular to an energy storage module and an energy storage device. Background Technology

[0002] With the development of energy storage technology, the reliability requirements for energy storage equipment are becoming increasingly stringent. In industrial energy storage systems, due to their long-term outdoor operation, the external temperature and humidity of the energy storage module are constantly changing, making it prone to condensation inside the module. This can lead to the growth of mold on organic materials such as plastics, corrosion of metal parts, and a reduction in the lifespan of internal components. Furthermore, the condensation forming water droplets that drip onto exposed electrical components below pose a risk of short circuits. Utility Model Content

[0003] This application provides an energy storage module and energy storage device that effectively controls the temperature and humidity environment inside the energy storage module, reduces condensation, and protects the safety and lifespan of batteries and other electronic components, thereby at least partially solving the above-mentioned technical problems.

[0004] To achieve the above objectives, the first aspect of this application provides an energy storage module, including a housing, a battery module, and a liquid cooling plate. The housing includes a bottom plate and four side plates, which surround the bottom plate to form an accommodating space. The battery module is disposed within the accommodating space, and the liquid cooling plate is disposed between the bottom plate and the battery module. The bottom plate has a window for exposing the liquid cooling plate.

[0005] In some embodiments, the base plate has a first side and a second side disposed opposite to each other, and a window extends from the first side to the second side; a liquid cooling plate is disposed on the first side, and the surface of the liquid cooling plate facing the first side has a heat dissipation structure, which is exposed through the window.

[0006] In some embodiments, the heat dissipation structure includes heat dissipation fins and / or heat dissipation pillars.

[0007] In some embodiments, the liquid cooling plate has a first inlet pipe and a first outlet pipe protruding from the side plate.

[0008] In some embodiments, the energy storage module further includes: a second liquid inlet pipe disposed outside the housing and connected to the first liquid inlet pipe; and a second liquid outlet pipe disposed outside the housing and connected to the first liquid outlet pipe.

[0009] In some embodiments, the first insulation sleeve includes a first inner insulation tube and a first outer insulation tube, the first outer insulation tube being disposed on the outer periphery of the first inner insulation tube, the first inner insulation tube being disposed on the outer periphery of the second liquid inlet tube, and one of the first inner insulation tube and the first outer insulation tube being made of insulation foam.

[0010] In some embodiments, the second insulation sleeve includes a second inner insulation tube and a second outer insulation tube, the second outer insulation tube being disposed on the outer periphery of the second inner insulation tube, the second inner insulation tube being disposed on the outer periphery of the second liquid outlet tube, and one of the second inner insulation tube and the second outer insulation tube being made of insulation foam.

[0011] A second aspect of this application provides an energy storage device, comprising: at least one energy storage module as described in any of the above embodiments, and a dehumidification device disposed outside the enclosure.

[0012] In some embodiments, the energy storage device further includes: an installation frame, including a support plate and a plurality of support members, the plurality of support members being respectively disposed on the sides of the support plate to enclose an installation space for supporting the energy storage module.

[0013] In some embodiments, multiple energy storage modules are stacked within an installation space, and the liquid cooling plate in each energy storage module is located on the side facing the support plate.

[0014] The energy storage module and energy storage device of this application embodiment feature a window design at the bottom of the housing, allowing the liquid cooling plate to be directly exposed to the air. This increases the contact area with the external environment, thereby improving heat dissipation efficiency. Furthermore, this allows for more effective heat transfer from the battery module through the liquid cooling plate, helping to reduce the temperature and humidity inside the housing, lowering the dew point temperature, and thus reducing the probability of condensation.

[0015] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0018] Figure 1 This is a schematic diagram of the split structure of the energy storage module provided in the embodiments of this application. Figure 1 .

[0019] Figure 2 This is a structural schematic diagram of the box provided in the embodiments of this application.

[0020] Figure 3 This is a schematic diagram of the structure of the liquid cooling plate provided in the embodiments of this application.

[0021] Figure 4 This is a schematic diagram of the split structure of the energy storage module provided in the embodiments of this application. Figure 2 .

[0022] Figure 5 This is a structural schematic diagram of the energy storage device provided in the embodiments of this application from one perspective, mainly showing the structure of the second liquid inlet pipe, the second liquid outlet pipe and the dehumidification device being arranged outside the box.

[0023] Figure 6 This is a cross-sectional view of the first insulation sleeve wrapped around the outer periphery of the second liquid inlet pipe provided in the embodiments of this application.

[0024] Figure 7 This is a cross-sectional view of the second insulation sleeve wrapped around the outer periphery of the second liquid outlet pipe provided in the embodiments of this application.

[0025] Figure 8 This is a schematic diagram of the installation frame provided in the embodiments of this application.

[0026] Figure 9 This is a schematic diagram of the structure of multiple energy storage modules provided in the embodiments of this application, which are arranged within the installation frame.

[0027] Figure 10 This is a structural schematic diagram of the energy storage device provided in the embodiments of this application from another perspective.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1-Energy storage module; 2-Box body; 20-Window opening; 21-Bottom plate; 22-Side plate; 23-Accommodation space; 24-Box cover; 211-First side; 212-Second side; 3-Battery module; 4-Liquid cooling plate; 41-Heat dissipation structure; 42-First liquid inlet pipe; 43-First liquid outlet pipe; 5-Second liquid inlet pipe; 6-Second liquid outlet pipe; 71-First insulation sleeve; 711-First inner insulation pipe; 712-First outer insulation pipe; 72-Second insulation sleeve; 721-Second inner insulation pipe; 722-Second outer insulation pipe; 8-Dehumidification device; 9-Mounting frame; 90-Mounting space; 91-Bearing plate; 92-Supporting component; 921-Baffle; 922-Supporting column. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0031] Traditional energy storage systems lack specific anti-condensation measures, failing to effectively improve their internal anti-condensation capabilities. Therefore, it is necessary to design a technical solution to prevent condensation within the energy storage system, thereby avoiding problems such as mold growth and short circuits caused by condensation.

[0032] Please see Figure 1 This application provides an energy storage module 1, including a housing 2, a battery module 3, and a liquid cooling plate 4. The housing 2 includes a bottom plate 21 and four side plates 22, which surround the bottom plate 21 to form an accommodating space 23. The battery module 3 is disposed within the accommodating space 23, and the liquid cooling plate 4 is disposed between the bottom plate 21 and the battery module 3. The bottom plate 21 has a window 20 for exposing the liquid cooling plate 4. The window 20 design allows the liquid cooling plate 4 to be directly exposed to the air, increasing the contact area with the external environment and thus improving heat dissipation efficiency. It also helps to reduce the temperature and humidity inside the housing 2, lowering the dew point temperature and reducing the probability of condensation.

[0033] Please see Figure 1 and Figure 2 The housing 2 includes a bottom plate 21 and four side plates 22. The four side plates 22 surround the bottom plate 21 to form an accommodating space 23 for accommodating the battery module 3. The battery module 3 is disposed within the accommodating space 23, and a liquid cooling plate 4 is disposed between the bottom plate 21 and the battery module 3, removing the heat generated by the battery module 3 through heat conduction. The housing 2 has a compact structure, and the rational layout achieves effective integration of the battery module 3 and the liquid cooling plate 4, improving space utilization. The liquid cooling plate 4 is tightly fitted to the battery module 3 and exchanges heat efficiently with the external environment through the opening 20 on the bottom plate 21.

[0034] The bottom plate 21 of the enclosure 2 has a window 20 for exposing a portion of the liquid cooling plate 4, thereby increasing the contact area with the external environment and further improving heat dissipation efficiency. Furthermore, the edges of the window 20 can be configured with a sealing structure (not shown in the figure) to ensure that the enclosure 2 maintains good sealing performance while dissipating heat, preventing liquid leakage and ensuring the safety and reliability of the enclosure 2.

[0035] Please see Figure 2 The windows 20 are multiple and evenly distributed on the base plate 21, which can ensure that the heat of the liquid cooling plate 4 can be dissipated to the external environment more evenly. This helps to avoid local overheating and improve the overall heat dissipation efficiency.

[0036] Please see Figure 1 and Figure 3The bottom plate 21 of the housing 2 has a first side 211 and a second side 212 arranged opposite to each other, and a window 20 extends from the first side 211 to the second side 212. A liquid cooling plate 4 is disposed on the first side 211, and the surface of the liquid cooling plate 4 facing the first side 211 has a heat dissipation structure 41, which is exposed through the window 20. Therefore, the combination of the liquid cooling plate 4 and the heat dissipation structure 41 achieves efficient and uniform heat dissipation of the battery module 3, improving the performance and safety of the battery module 3. At the same time, the design of the window 20 allows the heat dissipation structure 41 to be fully exposed, further improving heat dissipation efficiency.

[0037] In one embodiment, the heat dissipation structure 41 can be a ribbed heat dissipation fin or a columnar heat dissipation column. The heat dissipation fin protrudes from the lower surface of the liquid cooling plate 4 to increase the heat dissipation area and improve heat dissipation efficiency. In another embodiment, the heat dissipation structure 41 can include both ribbed heat dissipation fins and columnar heat dissipation columns, which are spaced apart and protruding from the lower surface of the liquid cooling plate 4. The heat dissipation fins provide a large surface area for rapid heat dissipation, while the heat dissipation columns can effectively conduct heat from the liquid cooling plate 4 to the heat dissipation fins and the surrounding air. Furthermore, to further improve heat dissipation efficiency, at least one of the four side plates 22 can be provided with a cooling fan or heat dissipation holes (not shown in the figure).

[0038] Please see Figure 4 The energy storage module also includes a cover 24, which covers the top of the four side panels 22 to enclose the accommodating space 23, effectively protecting the internal battery module 3 from external environmental influences such as dust, moisture, pollutants and physical damage.

[0039] Please see Figure 4 The liquid cooling plate 4 has a first liquid inlet pipe 42 and a first liquid outlet pipe 43 protruding from the side plate 22 to facilitate connection with an external cooling system and realize liquid cooling circulation.

[0040] Please see Figure 4 and Figure 5 The energy storage module also includes a second inlet pipe 5 and a second outlet pipe 6. The second inlet pipe 5 is located outside the housing 2 and is connected to the first inlet pipe 42, used to supply coolant to the liquid cooling plate 4. The second outlet pipe 6 is located outside the housing 2 and is connected to the first outlet pipe 43, used to discharge coolant from the liquid cooling plate 4. The second inlet pipe 5 is connected to the first inlet pipe 42 via a quick connector, and the second outlet pipe 6 can be connected to the first outlet pipe 43 via a quick connector for easy disassembly and replacement.

[0041] Please see Figure 6 and Figure 7The energy storage module also includes at least one of a first insulating sleeve 71 and a second insulating sleeve 72. The first insulating sleeve 71 is fitted around the outer periphery of the second liquid inlet pipe 5. The second insulating sleeve 72 is fitted around the outer periphery of the second liquid outlet pipe 6.

[0042] In one embodiment, the first insulation sleeve 71 includes a first inner insulation tube 711 and a first outer insulation tube 712. The first outer insulation tube 712 is disposed on the outer periphery of the first inner insulation tube 711, and the first inner insulation tube 711 is disposed on the outer periphery of the second liquid inlet pipe 5. One of the first inner insulation tube 711 and the first outer insulation tube 712 is made of insulating foam. By using a double-layer insulation structure (first inner insulation tube 711 and first outer insulation tube 712), heat loss can be effectively reduced, further enhancing the insulation effect. The insulating foam material has good thermal insulation properties, which can maintain the temperature of the liquid inside the tube and reduce energy loss.

[0043] In one embodiment, the second insulation sleeve 72 includes a second inner insulation tube 721 and a second outer insulation tube 722. The second outer insulation tube 722 is disposed on the outer periphery of the second inner insulation tube 721, and the second inner insulation tube 721 is disposed on the outer periphery of the second liquid outlet tube 6. One of the second inner insulation tube 721 and the second outer insulation tube 722 is made of insulating foam. By using a double-layer insulation structure (second inner insulation tube 721 and second outer insulation tube 722), heat loss can be effectively reduced, further enhancing the insulation effect. The insulating foam material has good thermal insulation properties, which can maintain the temperature of the liquid inside the tube and reduce energy loss.

[0044] The aforementioned insulating foam can be made of materials with a closed-cell structure, providing good insulation and a certain degree of elasticity to accommodate minor deformations of the pipe. Alternatively, in other embodiments, the insulating sleeve can be made of materials with low thermal conductivity, such as rubber or plastic, effectively isolating the liquid inside the pipe from external heat.

[0045] This application also provides an energy storage device, including at least one energy storage module 1 as described in any of the above embodiments and a dehumidification device 8. Please refer to... Figure 5 The dehumidification device 8 is located outside the housing 2 and is used to collect condensation inside the housing 2. The external dehumidification device 8 effectively collects and treats the condensation generated inside the housing 2 of the energy storage module 1, which improves the operating efficiency and safety of the energy storage system. It has the characteristics of simple structure, easy implementation and good heat dissipation and dehumidification effect.

[0046] The outer casing of the dehumidifier 8 is provided with multiple vent holes (not shown in the figure) to increase its contact area with the air inside the housing 2 and improve dehumidification efficiency. When condensation occurs inside the housing 2, air enters the dehumidifier 8 through the vent holes, comes into contact with the desiccant inside the dehumidifier 8 and is dried, thereby avoiding the impact of condensation on system performance.

[0047] Please see Figure 8 and Figure 9 The energy storage device also includes a mounting frame 9, which comprises a support plate 91 and multiple support members 92. The multiple support members 92 are respectively disposed on the sides of the support plate 91 to enclose the mounting space 90, thereby enhancing the stability and strength of the entire frame. This helps to ensure that the installed energy storage module 1 remains stable during operation.

[0048] The support member 92 can be a baffle 921 or multiple support columns 922. Multiple baffles 921 or support columns 922 are arranged around the bearing plate 91 and enclose the installation space 90. Figure 9 and Figure 10 As illustrated, the support member 92 includes a baffle 921 and multiple support columns 922. The bearing plate 91 has two oppositely arranged short sides and two oppositely arranged long sides. The baffle 921 is disposed on one of the two short sides of the bearing plate 91, and the multiple support columns 922 are respectively disposed on the two long sides. The multiple support columns 922 and the baffle 921 cooperate to form a hollow installation space 90. During installation, the side without the baffle 921 and support columns 922 is used as the installation port, and the energy storage module 1 is placed into it through this installation port. The second liquid inlet pipe 5 and the second liquid outlet pipe 6 are both arranged at the installation port, which facilitates installation.

[0049] Please see Figure 1 , Figure 9 and Figure 10 Multiple energy storage modules 1 are stacked within the installation space 90, with the liquid cooling plate 4 in each module 1 located on the side facing the support plate 91 to achieve effective cooling of the energy storage modules 1. Thermally conductive gap fillers can be provided between the energy storage modules 1 to improve heat transfer efficiency. A guide channel can also be provided on the first side 211 of the base plate 21 to guide the heat dissipation structure 41 to be discharged through the opening 20.

[0050] During the operation of the energy storage device, the liquid cooling plate 4 dissipates the heat generated by the energy storage module 1 to the outside of the housing 2 through the heat dissipation structure 41 and the window 20, achieving effective heat dissipation. This helps to reduce the temperature and humidity inside the housing 2, lowering the dew point temperature and thus reducing the probability of condensation. At the same time, the dehumidification device 8 continuously collects the condensation inside the housing 2, keeping the system interior dry and preventing damage to electronic components.

[0051] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0052] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0053] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0054] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. An energy storage module, characterized in that, include: The enclosure includes a housing, a battery module, and a liquid cooling plate. The housing includes a bottom plate and four side plates. The four side plates surround the bottom plate to form an accommodating space. The battery module is disposed within the accommodating space. The liquid cooling plate is disposed between the bottom plate and the battery module. The base plate has a window for exposing the liquid cooling plate.

2. The energy storage module according to claim 1, characterized in that, The base plate has a first side and a second side arranged opposite to each other, and the window extends from the first side to the second side; The liquid cooling plate is disposed on the first side, and the surface of the liquid cooling plate facing the first side has a heat dissipation structure, which is exposed through the window.

3. The energy storage module according to claim 2, characterized in that, The heat dissipation structure includes heat dissipation fins and / or heat dissipation pillars.

4. The energy storage module according to claim 2, characterized in that, The liquid cooling plate has a first liquid inlet pipe and a first liquid outlet pipe protruding from the side plate.

5. The energy storage module according to claim 4, characterized in that, Also includes: The second liquid inlet pipe is located outside the box and is connected to the first liquid inlet pipe; The second outlet pipe is located outside the box and is connected to the first outlet pipe.

6. The energy storage module according to claim 5, characterized in that, Also includes: A first insulating sleeve is fitted around the outer periphery of the second liquid inlet pipe; and / or, The second insulation sleeve is fitted around the outer periphery of the second liquid outlet pipe.

7. The energy storage module according to claim 6, characterized in that, The first insulation sleeve includes a first inner insulation tube and a first outer insulation tube. The first outer insulation tube is disposed on the outer periphery of the first inner insulation tube, and the first inner insulation tube is disposed on the outer periphery of the second liquid inlet tube. One of the first inner insulation tube and the first outer insulation tube is made of insulation foam.

8. The energy storage module according to claim 6, characterized in that, The second insulation sleeve includes a second inner insulation tube and a second outer insulation tube. The second outer insulation tube is disposed on the outer periphery of the second inner insulation tube, and the second inner insulation tube is disposed on the outer periphery of the second liquid outlet tube. One of the second inner insulation tube and the second outer insulation tube is made of insulation foam.

9. An energy storage device, characterized in that, include: At least one energy storage module as described in any one of claims 1-8; as well as A dehumidification device is installed outside the enclosure.

10. The energy storage device according to claim 9, characterized in that, Also includes: The mounting frame includes a support plate and multiple support members, which are respectively disposed on the sides of the support plate to enclose an installation space for supporting the energy storage module.

11. The energy storage device according to claim 10, characterized in that, Multiple energy storage modules are stacked within the installation space, and the liquid cooling plate in each energy storage module is located on the side facing the support plate.

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