Heat dissipation assembly and energy storage equipment

Abstract

The embodiment of the utility model provides a heat dissipation assembly and an energy storage device, the heat dissipation assembly is used for dissipating heat of a to-be-dissipated piece, the heat dissipation assembly comprises a waterproof breathable film, a part of the waterproof breathable film is attached to the to-be-dissipated piece, and a cavity is formed between the part of the waterproof breathable film and the to-be-dissipated piece; wherein a hydrophilic film is arranged in the cavity. According to the technical scheme, moisture in air is actively absorbed through temperature difference, heat is taken away through phase change, heat dissipation efficiency is remarkably improved, frequent maintenance is not needed, the service life of a product is prolonged, and on the basis, no fan design and no noise pollution are achieved; and the device is particularly suitable for household energy storage and other use scenes which are relatively long in maintenance period and relatively sensitive to noise.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage equipment, and in particular to a heat dissipation component and energy storage equipment. Background Art

[0002] At present, energy storage equipment generates a large amount of heat during operation. In related technologies, air cooling or liquid cooling is usually used for heat dissipation. Air cooling requires additional fans and air ducts, and it also makes a lot of noise during operation. Liquid cooling requires a cold source, and the system is more complicated. Utility Model Content

[0003] The utility model aims to at least solve the technical problem existing in the prior art or related art that when dissipating heat for energy storage equipment, additional space needs to be occupied and the heat dissipation efficiency in a small space is low.

[0004] In view of this, an embodiment of a first aspect of the present invention provides a heat dissipation assembly.

[0005] An embodiment of the second aspect of the utility model provides an energy storage device.

[0006] In order to achieve the above-mentioned purpose, an embodiment of the utility model provides a heat dissipation component for dissipating heat from a heat dissipation component, the heat dissipation component comprising: a waterproof and breathable membrane, part of the waterproof and breathable membrane is in contact with the heat dissipation component, and a cavity is formed between part of the waterproof and breathable membrane and the heat dissipation component; wherein a hydrophilic membrane is provided in the cavity.

[0007] According to the heat dissipation component proposed by the utility model, the limitations of traditional heat dissipation methods are effectively solved through active circulation heat dissipation, especially the problem of low heat dissipation efficiency in a small space. Furthermore, this solution uses the temperature difference to actively absorb moisture in the air and remove heat through phase change, significantly improving the heat dissipation efficiency. At the same time, it does not require frequent maintenance and extends the product life. On this basis, there is no fan design and no noise pollution, which is particularly suitable for use scenarios such as home energy storage with a long maintenance cycle and high sensitivity to noise.

[0008] Specifically, the heat dissipation component disclosed in the present scheme includes a hydrophilic membrane and a waterproof breathable membrane arranged in a stacked manner, wherein the hydrophilic membrane is located in the middle layer of the heat dissipation component, and is in the cavity formed by the waterproof breathable membrane and the heat dissipation component. It can be understood that the hydrophilic membrane continuously absorbs moisture in the air. When the surface temperature of the heat dissipation component increases, by contacting the hydrophilic membrane with it, the moisture can be changed from liquid to gas, taking away heat and dissipating heat through phase change. When there is no heat, the characteristics of the hydrophilic membrane can also be used to absorb moisture in the air. It is particularly suitable for intermittent heating working scenarios, such as photovoltaic power generation cells or chips. When they operate in the presence of sunlight, the heat generated by the cells or chips can be dissipated through evaporation of the hydrophilic membrane. When the photovoltaic efficiency is low or after dark, the equipment stops running, and the hydrophilic membrane will continue to absorb moisture in the air.

[0009] By placing the hydrophilic membrane in the cavity formed between the heat dissipation component and the waterproof breathable membrane, the cavity structure ensures that the hydrophilic membrane has enough space for phase change heat dissipation during water absorption and evaporation, and the heat dissipation effect is not affected by compression.

[0010] In summary, the heat dissipation component can dissipate heat efficiently when working, extend the life of the equipment, reduce maintenance and noise, and at the same time ensure the continuity and stability of the heat dissipation performance through the self-replenishing function of the hydrophilic membrane when not working.

[0011] In some technical solutions, optionally, the heat dissipation element is made of metal, and the heat dissipation assembly further includes: an adhesive film, which is arranged between the hydrophilic film and the heat dissipation element, a portion of the waterproof and breathable film is connected to the adhesive film, and a cavity is formed between the portion of the waterproof and breathable film and the adhesive film.

[0012] In this technical solution, a viscose film is provided and arranged on one side of the hydrophilic film, in direct contact with the hydrophilic film. The viscose film can be silica gel or other heat-conducting materials. With the viscose film, the heat of the heat source is effectively transferred to the hydrophilic film to evaporate the water. The waterproof and breathable film is arranged on one side of the hydrophilic film, part of which is connected to the viscose film, and part of which forms a cavity between the viscose film. Because it has waterproof and breathable properties, it can prevent the entry of external liquid water, keep the interior dry, and allow the gaseous water formed when the water evaporates to pass through, maintaining a good heat dissipation effect.

[0013] It should be added that the hydrophilic film is located above the viscose film and is in close contact with the viscose film. The viscose film conducts heat to the hydrophilic film, causing the water in the hydrophilic film to evaporate and achieve heat dissipation. Between the viscose film and the waterproof breathable film, part is directly connected, and a cavity is formed between the parts. The waterproof breathable film covers one side of the viscose film, part is fixed to the viscose film, and part is suspended to form a cavity.

[0014] In the case where the heat dissipation component is made of metal, an adhesive film can be arranged between the hydrophilic film and the heat dissipation component. In this case, the adhesive film is usually made of an adhesive material with good thermal conductivity, which can ensure the efficiency of heat conduction while maintaining a certain degree of adhesion, thereby firmly adhering the hydrophilic film to the housing or other structure of the device, ensuring that the heat dissipation component will not be displaced or fall off during operation. It can be understood that although the main function of the adhesive film is adhesion, it also needs to have certain thermal conductivity properties to promote the dissipation of heat to the outside and enhance the heat dissipation effect.

[0015] In addition, the presence of the adhesive film can provide a certain degree of sealing, preventing external moisture and air from entering the interior of the heat dissipation component, thereby protecting the hydrophilic film.

[0016] It should be added that the adhesive film can absorb mechanical vibrations to a certain extent, reduce the impact of external shocks on the heat dissipation components, and help improve the stability and durability of the overall system.

[0017] In some technical solutions, optionally, the adhesive film specifically includes: an adhesive base layer and an adhesive layer that are stacked; wherein the material of the adhesive base layer is polyethylene terephthalate, and the material of the adhesive layer is acrylic adhesive.

[0018] In this technical solution, the viscose film specifically includes an viscose base layer and an adhesive layer. The viscose base layer is made of polyethylene terephthalate, which serves as the foundation and support of the entire viscose film. The viscose film uses acrylic glue, which can provide strong bonding ability, so as to firmly connect the hydrophilic film to the metal heat dissipation part.

[0019] It can be understood that using ethylene terephthalate as the adhesive base layer can evenly distribute heat, and on this basis, acrylic adhesive can effectively transfer heat and enhance bonding strength.

[0020] It is understood that strength and flexibility can be balanced by adjusting the thickness ratio of the PET film and the acrylic adhesive. Further, fillers can be added to the PET film to further enhance certain properties (such as thermal conductivity, flame retardancy, etc.).

[0021] In some technical solutions, optionally, the thickness of the adhesive base layer is 15 μm to 25 μm, and the thickness of the adhesive layer is 25 μm to 35 μm.

[0022] In this technical solution, the thickness of the adhesive base layer and the adhesive layer are further limited, wherein the thickness of the adhesive base layer is selected to be 15μm to 25μm, and the thickness of the adhesive layer is 25μm to 35μm, so as to maintain the overall lightness of the adhesive film while providing sufficient support.

[0023] Furthermore, the thickness of the adhesive base layer is 20 μm, and the thickness of the adhesive layer is 30 μm.

[0024] In some technical solutions, optionally, the heat dissipation component is made of plastic material, and the waterproof breathable membrane is welded to the heat dissipation component.

[0025] In this technical solution, when the heat dissipation component is made of plastic, the waterproof and breathable membrane can be directly heated to the heat dissipation component and connected by welding. On the one hand, the sealing is improved, thereby enhancing the waterproof performance. On the other hand, the material of the heat dissipation component is plastic, and there is no need to set a separate viscose film, which can effectively reduce costs.

[0026] In some technical solutions, optionally, it also includes: a grid structure, which is arranged on the side of the hydrophilic membrane facing the waterproof breathable membrane, and / or is arranged on the side of the waterproof breathable membrane facing the hydrophilic membrane.

[0027] In this technical solution, the stability of the connection between the hydrophilic membrane and the waterproof breathable membrane is further improved by adding a grid structure. Specifically, the grid structure is arranged on the side of the hydrophilic membrane facing the waterproof breathable membrane, or on the side of the waterproof breathable membrane facing the hydrophilic membrane. A matching grid structure can also be arranged on the waterproof breathable membrane and the hydrophilic membrane. The grid structure can increase the air flow between the hydrophilic membrane and the waterproof breathable membrane, promote the release of water vapor and improve the heat dissipation efficiency.

[0028] Of course, to a certain extent, increasing the surface area in contact with the air will improve the water absorption and heat dissipation capabilities of the hydrophilic membrane.

[0029] Furthermore, the grid structure is in direct contact or fixed connection with the hydrophilic membrane to form an integrated structure. Through direct contact, the grid structure can effectively transfer heat to the hydrophilic membrane to increase the rate of heat dissipation. A certain gap or cavity is formed between the grid structure and the waterproof breathable membrane. This design allows air to flow freely while preventing moisture from entering the interior, ensuring that water vapor can escape smoothly during the heat dissipation process.

[0030] In some technical solutions, optionally, the waterproof breathable membrane specifically includes: a base layer, the base layer is formed with a microporous structure, and the pore size of the microporous structure is 0.1 μm to 10 μm; and a hydrophobic layer is arranged on a side of the base layer away from the hydrophilic membrane.

[0031] In this technical solution, the waterproof and breathable membrane includes a base layer and a hydrophobic layer. The base layer has a microporous structure with a specific pore size range of 0.1μm to 10μm. The microporous structure allows water vapor to pass through while blocking the entry of liquid water, thereby achieving the dual functions of waterproof and breathable.

[0032] Among them, a close contact is formed between the base layer and the hydrophilic membrane. This close contact ensures that the hydrophilic membrane can effectively interact with the waterproof and breathable membrane to optimize the water absorption and evaporation process.

[0033] In addition, by arranging the hydrophobic layer on the side of the base layer away from the hydrophilic membrane, the design of the hydrophobic layer makes it impossible for liquid water to penetrate, further enhancing the waterproof performance and ensuring that the internal components are not affected by moisture. Of course, the hydrophobic layer provides a layer of protection for the base layer, preventing direct damage to the base layer by the external environment and extending the service life of the membrane.

[0034] Furthermore, the hydrophobic layer is located on the far side of the base layer to form an integrated structure, which ensures that liquid water cannot enter the microporous structure of the base layer, further enhancing the overall waterproof performance while maintaining good air permeability.

[0035] In some technical solutions, optionally, it also includes: a plurality of brackets, the plurality of brackets are cross-arranged to form a plurality of hydrophilic regions, and a hydrophilic membrane is provided in each hydrophilic region.

[0036] In this technical solution, multiple independent hydrophilic regions are formed by cross-arranged brackets, which increases the surface area of ​​the hydrophilic membrane and improves the water absorption and evaporation capacity. The setting of each hydrophilic region enables the heat dissipation component to absorb and dissipate heat in a larger range, thereby improving the overall heat dissipation efficiency. The cross design of the bracket provides additional mechanical support, ensuring that the hydrophilic membrane is not easily deformed or fallen off during operation, thereby enhancing the stability of the overall structure.

[0037] It should be emphasized that in the present solution, the hydrophilic area formed by multiple brackets corresponds to the cavity formed between the waterproof breathable membrane and the viscose membrane. In other words, the setting position of the bracket corresponds to the position where part of the waterproof breathable membrane is in direct contact with the viscose membrane, and the direction of the bracket is the same as the direction of the part where the waterproof breathable membrane and the viscose membrane are in direct contact.

[0038] The support may be made of a lightweight material with a certain strength.

[0039] Of course, the cross-setting of the brackets can effectively disperse the pressure and vibration from the external environment, reduce the direct impact on the hydrophilic membrane, and improve the durability of the equipment.

[0040] Each hydrophilic membrane is fixed in a corresponding hydrophilic region and is usually connected to the support by bonding or mechanical fixing.

[0041] By setting up multiple cross-brackets, the heat dissipation component realizes the design of multiple hydrophilic areas, significantly improving the ability to absorb and dissipate water and optimizing the heat dissipation performance. At the same time, the structure of the bracket enhances the overall stability and durability, allowing the equipment to maintain efficient heat dissipation under various working conditions.

[0042] In some technical solutions, optionally, it also includes: a water storage tank, which is arranged on the bracket, and each water storage tank is connected to at least one hydrophilic membrane.

[0043] In this technical solution, a water storage tank is arranged on the bracket, and the water storage tank is connected to at least one hydrophilic membrane through a pipe or an opening to form a water flow channel, thereby ensuring that the water in the water storage tank can be supplied to the hydrophilic membrane in time to support its heat dissipation needs during operation. At the same time, when the water in the hydrophilic membrane is evaporated and carried away by heat, the water stored in the water storage tank can be used to continue to dissipate heat. Of course, when the object to be dissipated has no heat dissipation demand for a long time, the water storage tank can store the water absorbed by the hydrophilic membrane to meet subsequent heat dissipation needs.

[0044] It can be understood that, under the action of the water storage tank, the water absorption and heat dissipation of the hydrophilic membrane are expanded, thereby improving the heat dissipation effect.

[0045] In some technical solutions, optionally, the thickness of the hydrophilic film is 0.2 mm to 1.5 mm.

[0046] In this technical solution, the thickness of the hydrophilic film is limited to 0.2 mm to 1.5 mm, thereby ensuring that the hydrophilic film has sufficient mechanical strength and stability while optimizing the thermal conductivity performance.

[0047] It is understandable that a thinner hydrophilic film can increase the heat transfer rate, while a thicker film can store more water. However, if the thickness is too thin, such as less than 0.2 mm, it cannot meet the heat dissipation requirements. If the thickness is too thick, such as greater than 1.5 mm, it increases the heat conduction path and reduces the efficiency of heat transfer from the heat source to the hydrophilic film. Under rapidly changing heat load conditions, a thicker film may not be able to respond quickly to heat changes, resulting in heat dissipation lag and affecting the temperature control of the equipment.

[0048] A hydrophilic film that is too thick may limit the evaporation rate of water, resulting in reduced heat dissipation performance. Under high heat load conditions, the water may not evaporate in time to remove enough heat.

[0049] Furthermore, the thickness of the hydrophilic film is 0.5 mm to 1 mm.

[0050] The hydrophilic film thickness is designed between 0.2mm and 1.5mm, providing good thermal conductivity, water absorption and phase change heat dissipation performance. The appropriate thickness not only enhances the mechanical strength and durability of the film, but also improves the reliability and efficiency of the overall heat dissipation system. This design flexibility enables the hydrophilic film to adapt to a variety of application scenarios and meet different heat dissipation requirements.

[0051] In some technical solutions, optionally, it also includes: a cover structure, which is arranged on the side of the waterproof and breathable membrane away from the hydrophilic membrane, and the cover structure includes a plurality of air holes; a switch structure, which is movably connected to the cover structure, and the switch structure is used to open and close the air holes.

[0052] In this technical solution, the cover structure is arranged on the side of the waterproof and breathable membrane away from the hydrophilic membrane. The cover structure includes multiple air holes to allow the exchange of air and water vapor. The cover structure is movably connected to the switch structure and can flexibly open and close the air holes.

[0053] Through the activity of the switch structure, users can flexibly adjust the opening and closing state of the vents as needed, thereby controlling the internal air flow and the release of water vapor to optimize the heat dissipation performance. When there is no need for heat dissipation for a long time, the vents can be closed to effectively block the intrusion of external dust, dirt and liquid water.

[0054] According to different heat dissipation requirements, users can flexibly adjust the number of open and closed air vents, that is, the opening and closing status of each air vent, so that the heat dissipation system can better adapt to changes in the external environment and improve overall performance.

[0055] The cover plate structure is firmly fixed on the far side of the waterproof breathable membrane to form a closed structure, so that the cover plate structure can effectively protect the waterproof breathable membrane and provide necessary support for the air holes.

[0056] The connection between the switch structure and the cover plate structure may be a sliding connection, a rotating connection, a magnetic connection, etc.

[0057] In some technical solutions, optionally, it also includes: a filter screen, which is arranged at the air vent.

[0058] In this technical solution, by setting a filter inside or outside the air vent, utilizing its good air permeability and filtering ability, it can effectively block dust, dirt and other particulate matter, prevent them from entering the internal components through the air vent, and protect the hydrophilic membrane and other key components.

[0059] Specifically, the filter can be directly embedded or fixed on the inner side of the air vent to form a protective barrier. This connection ensures that the filter can effectively intercept pollutants entering the air vent without affecting the flow of air and water vapor.

[0060] It can be understood that the filter can effectively filter external pollutants, ensure the cleanliness of the internal environment, and maintain the performance and safety of the equipment.

[0061] An embodiment of the second aspect of the present application provides an energy storage device, including: a box body, in which a heat dissipation component is disposed; and any one of the above-mentioned heat dissipation components is used to dissipate heat from the heat dissipation component.

[0062] According to the energy storage device provided in the present application, including a housing and a heat dissipation assembly, by arranging the heat dissipation component to be cooled in the housing, the characteristics of the hydrophilic membrane can be used to dissipate heat from the heat dissipation component. The heat dissipation assembly ensures that the heat dissipation component to be cooled maintains a suitable temperature during operation through an effective heat dissipation mechanism, thereby preventing performance degradation and safety hazards caused by overheating.

[0063] It should be emphasized that the heat dissipation component is a battery. For the working scenario of the battery of the energy storage device, the intermittent working characteristics of the hydrophilic membrane can be used to dissipate the heat of the battery during charging and discharging. When the battery is not charging and discharging, the hydrophilic membrane can gradually absorb water vapor in the environment to meet the subsequent heat dissipation needs.

[0064] It can be understood that under the action of the hydrophilic membrane, water can be automatically replenished when the battery is working intermittently, maintaining heat dissipation performance and reducing manual intervention.

[0065] Since the energy storage device includes any of the above-mentioned heat dissipation components, it has the beneficial effects of any of the above-mentioned heat dissipation components, which will not be described in detail here.

[0066] Among them, energy storage equipment includes but is not limited to energy storage batteries, energy storage inverters and other equipment.

[0067] Additional aspects and advantages of the present invention will become apparent in the following description or will be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Figure 1 A schematic structural diagram of an energy storage device according to an embodiment of the utility model is shown;

[0069] Figure 2 A schematic structural diagram of a heat dissipation assembly according to an embodiment of the utility model is shown;

[0070] Figure 3 A schematic structural diagram of a heat dissipation assembly according to an embodiment of the utility model is shown;

[0071] Figure 4 A schematic structural diagram of a heat dissipation assembly according to an embodiment of the utility model is shown;

[0072] Figure 5 A schematic structural diagram of a heat dissipation assembly according to an embodiment of the utility model is shown;

[0073] Figure 6 A schematic structural diagram of a heat dissipation assembly according to an embodiment of the utility model is shown;

[0074] Figure 7 A schematic diagram of the waterproof and breathable membrane structure of a heat dissipation assembly according to an embodiment of the utility model is shown;

[0075] Figure 8 A schematic structural diagram of a heat dissipation assembly according to an embodiment of the utility model is shown;

[0076] Fig. 9A schematic structural diagram of a heat dissipation assembly according to an embodiment of the utility model is shown;

[0077] Fig.10 A schematic diagram of the cover structure of a heat dissipation assembly according to an embodiment of the utility model is shown;

[0078] Fig.11 A schematic structural diagram of an energy storage device according to an embodiment of the utility model is shown;

[0079] Fig.12 A temperature schematic diagram showing an energy storage device according to an embodiment of the present utility model charging at 0.5C for 1 hour at a temperature of 45°C;

[0080] Fig.13 A temperature schematic diagram showing an energy storage device without a heat dissipation component in the energy storage device charging at 0.5C for 1 hour at a temperature of 45°C;

[0081] Fig.14 A temperature schematic diagram showing an energy storage device according to an embodiment of the present utility model charging at 1C for 1 hour at a temperature of 45°C;

[0082] Fig.15 A temperature schematic diagram showing an energy storage device without a heat dissipation component in the energy storage device charging at 1C for 1 hour at a temperature of 45°C;

[0083] Fig.16 A schematic structural diagram of a heat dissipation assembly according to an embodiment of the utility model is shown;

[0084] Fig.17 A schematic structural diagram of a heat dissipation assembly according to an embodiment of the utility model is shown;

[0085] Fig.18 A schematic structural diagram of a heat dissipation assembly according to an embodiment of the utility model is shown;

[0086] Fig.19 A schematic structural diagram of a heat dissipation assembly according to an embodiment of the utility model is shown.

[0087] in, Figures 1 to 19 The corresponding relationship between the reference numerals and the component names is as follows:

[0088] 100: heat dissipation component; 102: hydrophilic film; 104: thermal conductive layer; 1042: adhesive film; 1044: adhesive base layer; 1046: adhesive layer; 106: waterproof and breathable membrane; 1062: base layer; 1064: microporous structure; 1066: hydrophobic layer; 108: cavity; 110: grid structure; 112: bracket; 1122: hydrophilic area; 114: water storage tank; 116: cover plate structure; 1182: air vent; 120: switch structure; 122: filter;

[0089] 200: energy storage device; 201: box; 202: heat dissipation parts. DETAILED DESCRIPTION

[0090] In order to more clearly understand the above-mentioned purposes, features and advantages of the embodiments of the present invention, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0091] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the embodiments of the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0092] Refer to the following Figures 1 to 19 Some embodiments according to the present invention are described.

[0093] like Fig.17 As shown, this embodiment provides a heat dissipation component 100, which effectively solves the limitations of traditional heat dissipation methods, especially the problem of low heat dissipation efficiency in a small space, through active circulation heat dissipation.

[0094] Furthermore, this solution uses the temperature difference to actively absorb moisture in the air and removes heat through phase change, significantly improving the heat dissipation efficiency. At the same time, it does not require frequent maintenance and extends the life of the product. On this basis, it has a fanless design and no noise pollution. It is particularly suitable for use scenarios such as home energy storage that have a long maintenance cycle and are sensitive to noise.

[0095] Specifically, the heat dissipation component 100 disclosed in the present embodiment includes a hydrophilic membrane 102 and a waterproof breathable membrane stacked together, wherein the hydrophilic membrane 102 is located in the middle layer of the heat dissipation component 100, and is located in the cavity 108 formed by the waterproof breathable membrane 106 and the heat dissipation component. It can be understood that the hydrophilic membrane 102 continuously absorbs moisture in the air. When the surface temperature of the object to be dissipated increases, the heat can be conducted to the hydrophilic membrane 102 by bringing the heat dissipation component 100 into contact with it. The moisture changes from liquid to gas, taking away the heat, and dissipating the heat through phase change. When no heat is generated, the characteristics of the hydrophilic membrane 102 can also be used to absorb moisture in the air.

[0096] By placing the hydrophilic membrane in the cavity formed between the heat dissipation component and the waterproof breathable membrane, the cavity structure ensures that the hydrophilic membrane has enough space for phase change heat dissipation during water absorption and evaporation, and the heat dissipation effect is not affected by compression.

[0097] In one embodiment, Figure 1 , Figure 2 and Figure 3 As shown, a heat-conducting layer 104 is also provided, which is specifically located on one side of the hydrophilic film 102 and is in direct contact with the hydrophilic film 102. The heat-conducting layer 104 can be silica gel or other heat-conducting materials, which effectively transfers the heat of the heat source to the hydrophilic film 102 to evaporate the water. A waterproof and breathable membrane 106 is provided on one side of the heat-conducting layer 104, part of which is connected to the heat-conducting layer 104, and part of which forms a cavity 108 between the heat-conducting layer 104. Since it has waterproof and breathable properties, it can prevent the entry of external liquid water, keep the interior dry, and allow the gaseous water formed when the water evaporates to pass through, thereby maintaining a good heat dissipation effect.

[0098] It should be added that Fig.16 As shown, the hydrophilic film 102 is located above the heat-conducting layer 104 and is in close contact with the heat-conducting layer 104. The heat-conducting layer 104 conducts heat to the hydrophilic film 102, so that the water in the hydrophilic film 102 evaporates due to heat, thereby achieving heat dissipation. The heat-conducting layer 104 and the waterproof breathable film 106 are partially directly connected, and a cavity 108 is formed between the portions. The waterproof breathable film 106 covers one side of the heat-conducting layer 104, is partially fixed to the heat-conducting layer 104, and is partially suspended to form the cavity 108.

[0099] By placing the hydrophilic film 102 in the cavity 108 formed between the heat-conducting layer 104 and the waterproof breathable film 106, the cavity structure ensures that the hydrophilic film 102 has enough space for phase change heat dissipation during water absorption and evaporation, and the heat dissipation effect is not affected by pressure.

[0100] In summary, the heat dissipation component 100 can dissipate heat efficiently when working, extend the life of the equipment, reduce maintenance and noise, and at the same time ensure the continuity and stability of the heat dissipation performance through the self-replenishing function of the hydrophilic membrane 102 when not working.

[0101] In some embodiments, optionally, Figure 8 As shown, a viscose film 1042 is provided and arranged on one side of the hydrophilic film 102, directly contacting the hydrophilic film 102. The viscose film 1042 can be silica gel or other heat-conducting materials. With the viscose film 1042, the heat of the heat source is effectively transferred to the hydrophilic film 102, so that the water evaporates. The waterproof breathable film 106 is provided on one side of the hydrophilic film, part of which is connected to the viscose film 1042, and part of which forms a cavity 108 between the viscose film 1042. Because it has waterproof and breathable properties, it can prevent the entry of external liquid water, keep the interior dry, and allow the gaseous water formed when the water evaporates to pass through, so as to maintain a good heat dissipation effect.

[0102] It should be added that the hydrophilic film 102 is located above the viscose film 1042 and is in close contact with the viscose film 1042. The viscose film 1042 conducts heat to the hydrophilic film 102, so that the water in the hydrophilic film 102 evaporates due to heat, thereby achieving heat dissipation. The viscose film 1042 and the waterproof breathable film 106 are partially directly connected, and a cavity 108 is formed between the portions. The waterproof breathable film 106 covers one side of the viscose film 1042, is partially fixed to the viscose film 1042, and is partially suspended to form the cavity 108.

[0103] When the heat dissipation element 202 is made of metal, an adhesive film 1042 can be provided between the hydrophilic film 102 and the heat dissipation element 202. At this time, the adhesive film 1042 is usually made of an adhesive material with good thermal conductivity, which can ensure the efficiency of heat conduction while maintaining a certain degree of adhesion, so that the hydrophilic film 102 is firmly adhered to the housing or other structures of the device, ensuring that the heat dissipation component will not be displaced or fall off during operation. It can be understood that although the main function of the adhesive film 1042 is adhesion, it also needs to have a certain thermal conductivity to promote the heat dissipation to the outside and enhance the heat dissipation effect.

[0104] In addition, the presence of the adhesive film 1042 can provide a certain degree of sealing, preventing external moisture and air from entering the interior of the heat dissipation component, and plays a role in protecting the hydrophilic film 102 .

[0105] It should be added that the adhesive film 1042 can absorb mechanical vibrations to a certain extent, reduce the impact of external shocks on the heat dissipation components, and help improve the stability and durability of the overall system.

[0106] In a specific embodiment, optionally, Fig.18As shown, the adhesive film 1042 specifically includes an adhesive base layer 1044 and an adhesive layer 1046. The material of the adhesive base layer 1044 is polyethylene terephthalate, which serves as the basis and support of the entire adhesive film 1042. The adhesive film 1042 uses acrylic glue to provide strong bonding ability, so as to firmly connect the hydrophilic film 102 to the metal heat dissipation component 202.

[0107] It can be understood that using ethylene terephthalate as the adhesive base layer 1044 can evenly distribute heat, and on this basis, acrylic adhesive can effectively transfer heat and enhance bonding strength.

[0108] It is understood that strength and flexibility can be balanced by adjusting the thickness ratio of terephthalate (i.e. PET film) and acrylic adhesive. Further, fillers can be added to the PET film to further enhance certain properties (such as thermal conductivity, flame retardancy, etc.).

[0109] The thickness of the adhesive base layer 1044 and the adhesive layer 1046 are further limited, wherein the thickness of the adhesive base layer 1044 is selected to be 15μm to 25μm, and the thickness of the adhesive layer 1046 is selected to be 25μm to 35μm, so as to maintain the overall lightness of the adhesive film 1042 while providing sufficient support.

[0110] Furthermore, the thickness of the adhesive base layer 1044 is 20 μm, and the thickness of the adhesive layer 1046 is 30 μm.

[0111] In another embodiment, the heat dissipation element 202 is made of plastic, and the waterproof breathable membrane 106 can be directly heated to the heat dissipation element 202, and connected by welding. On the one hand, the sealing is improved, thereby enhancing the waterproof performance. On the other hand, the material of the heat dissipation element 202 is plastic, and there is no need to set a separate adhesive film 1042, which can effectively reduce costs.

[0112] In some embodiments, optionally, a grid structure 110 is added to further improve the stability of the connection between the hydrophilic membrane 102 and the waterproof breathable membrane 106. Specifically, Figure 4 As shown, the grid structure 110 is arranged on the side of the hydrophilic membrane 102 facing the waterproof breathable membrane 106. Furthermore, the grid structure 110 is in direct contact or fixedly connected with the hydrophilic membrane 102 to form an integrated structure. Through direct contact, the grid structure 110 can effectively transfer heat to the hydrophilic membrane 102 to increase the heat dissipation rate. A certain gap or cavity 108 is formed between the grid structure 110 and the waterproof breathable membrane 106. This design allows air to flow freely while preventing moisture from entering the interior, ensuring that water vapor can escape smoothly during the heat dissipation process.

[0113] Or Figure 5As shown, it is arranged on the side of the waterproof and breathable membrane 106 facing the hydrophilic membrane 102, or as shown Figure 6 As shown, a matching grid structure 110 is provided on the waterproof breathable membrane 106 and the hydrophilic membrane 102 , and the grid structure 110 can increase the air flow between the hydrophilic membrane 102 and the waterproof breathable membrane 106 , promote the release of water vapor and improve the heat dissipation efficiency.

[0114] Of course, to a certain extent, increasing the surface area in contact with the air improves the water absorption and heat dissipation capabilities of the hydrophilic film 102 .

[0115] In some embodiments, optionally, Figure 7 As shown, the waterproof breathable membrane 106 includes a base layer 1062 and a hydrophobic layer 1066. The base layer 1062 has a microporous structure 1064 with a specific pore size range of 0.1μm to 10μm. The microporous structure 1064 allows water vapor to pass through while blocking the entry of liquid water, thereby achieving the dual functions of waterproof and breathable.

[0116] Furthermore, the pore size range of the microporous structure 1064 is 0.45 μm.

[0117] Therein, a close contact is formed between the base layer 1062 and the hydrophilic membrane 102 . Such close contact ensures that the hydrophilic membrane 102 can effectively interact with the waterproof breathable membrane 106 to optimize the absorption and evaporation process of water.

[0118] In addition, by arranging the hydrophobic layer 1066 on the side of the base layer 1062 away from the hydrophilic membrane 102, the design of the hydrophobic layer 1066 makes it impossible for liquid water to penetrate, further enhancing the waterproof performance and ensuring that the internal components are not affected by moisture. Of course, the hydrophobic layer 1066 provides a layer of protection for the base layer 1062 to prevent direct damage to the base layer 1062 by the external environment, thereby extending the service life of the membrane.

[0119] Furthermore, the hydrophobic layer 1066 is located on the far side of the base layer 1062, that is, the side away from the hydrophilic membrane. The hydrophobic layer and the base layer form an integrated structure, ensuring that liquid water cannot enter the microporous structure 1064 of the base layer 1062, further enhancing the overall waterproof performance while maintaining good air permeability.

[0120] In some embodiments, optionally, Fig. 9 and Fig.19As shown, the cross-arranged brackets 112 form a plurality of independent hydrophilic regions 1122, which increase the surface area of ​​the hydrophilic membrane 102, thereby improving the water absorption and evaporation capabilities. The setting of each hydrophilic region 1122 enables the heat dissipation component 100 to absorb and dissipate heat in a larger range, thereby improving the overall heat dissipation efficiency. The cross-design of the brackets 112 provides additional mechanical support, ensuring that the hydrophilic membrane 102 is not easily deformed or fallen off during operation, thereby enhancing the stability of the overall structure.

[0121] It should be emphasized that, in the present embodiment, the hydrophilic area 1122 formed by the plurality of brackets 112 corresponds to the cavity 108 formed between the waterproof breathable membrane 106 and the thermal conductive layer 104. In other words, the arrangement position of the bracket 112 corresponds to the position where part of the waterproof breathable membrane 106 is in direct contact with the thermal conductive layer 104, and the orientation of the bracket 112 is the same as the orientation of the part where the waterproof breathable membrane 106 is in direct contact with the thermal conductive layer 104.

[0122] The bracket 112 may be made of a lightweight material with a certain strength.

[0123] Of course, the cross-setting of the brackets 112 can effectively disperse the pressure and vibration from the external environment, reduce the direct impact on the hydrophilic membrane 102, and improve the durability of the equipment.

[0124] Each hydrophilic membrane 102 is fixed in a corresponding hydrophilic region 1122 and is usually connected to the support 112 by bonding or mechanical fixing.

[0125] By providing a plurality of cross brackets 112, the heat dissipation assembly 100 realizes the design of a plurality of hydrophilic regions 1122, significantly improving the water absorption and dissipation capabilities and optimizing the heat dissipation performance. At the same time, the structure of the brackets 112 enhances the overall stability and durability, so that the device can maintain efficient heat dissipation under various working conditions.

[0126] In some embodiments, optionally, Fig. 9 As shown, a water tank 114 is provided on the bracket 112, and the water tank 114 is connected to at least one hydrophilic membrane 102 through a pipe or an opening to form a water flow channel, thereby ensuring that the water in the water tank 114 can be supplied to the hydrophilic membrane 102 in time to support its heat dissipation needs during operation. At the same time, when the water in the hydrophilic membrane 102 is evaporated and carried away by heat, the water stored in the water tank 114 can continue to dissipate heat. Of course, when the object to be cooled has no heat dissipation demand for a long time, the water tank 114 can store the water absorbed by the hydrophilic membrane 102 to meet subsequent heat dissipation needs.

[0127] It can be understood that, under the action of the water storage tank 114, the water absorption and heat dissipation of the hydrophilic membrane 102 are expanded, thereby improving the heat dissipation effect.

[0128] In some embodiments, the thickness of the hydrophilic film 102 is optionally limited to a range of 0.2 mm to 1.5 mm, thereby ensuring that the hydrophilic film 102 has sufficient mechanical strength and stability while optimizing the thermal conductivity performance.

[0129] It is understandable that a thinner thickness of the hydrophilic film 102 can increase the heat conduction rate, while a thicker thickness can store more water. However, if the thickness is too thin, such as less than 0.2 mm, it cannot meet the heat dissipation requirements, and if the thickness is too thick, such as greater than 1.5 mm, it increases the heat conduction path and reduces the efficiency of heat transfer from the heat source to the hydrophilic film 102. Under rapidly changing heat load conditions, a thicker film may not be able to respond quickly to heat changes, resulting in heat dissipation lag, affecting the temperature control of the device.

[0130] A hydrophilic film 102 that is too thick may limit the evaporation rate of water, resulting in a decrease in heat dissipation performance. Under high heat load conditions, water may not evaporate in time to remove enough heat.

[0131] Furthermore, the thickness of the hydrophilic film 102 is 0.5 mm to 1 mm.

[0132] The hydrophilic film 102 is designed to have a thickness between 0.2 mm and 1.5 mm, providing good heat conduction efficiency, water absorption capacity and phase change heat dissipation performance. The appropriate thickness not only enhances the mechanical strength and durability of the film, but also improves the reliability and efficiency of the overall heat dissipation system. This design flexibility enables the hydrophilic film 102 to adapt to a variety of application scenarios and meet different heat dissipation requirements.

[0133] In some embodiments, optionally, Fig.10 As shown, a cover structure 116 is provided, and the cover structure 116 is arranged on the side of the waterproof breathable membrane 106 away from the hydrophilic membrane 102. The cover structure 116 includes a plurality of air holes 1182 to allow the exchange of air and water vapor. The cover structure 116 is movably connected to the switch structure 120, and the air holes 1182 can be flexibly opened and closed.

[0134] Through the movement of the switch structure 120, the user can flexibly adjust the opening and closing state of the air hole 1182 as needed, thereby controlling the internal air flow and the release of water vapor to optimize the heat dissipation performance. When there is no need for heat dissipation for a long time, the air hole 1182 can be closed to effectively block the intrusion of external dust, dirt and liquid water.

[0135] According to different heat dissipation requirements, the user can flexibly adjust the number of openings and closings of the air holes 1182, that is, the opening and closing state of each air hole 1182, so that the heat dissipation system can better adapt to changes in the external environment and improve the overall performance.

[0136] The connection between the switch structure 120 and the cover structure 116 may be a sliding connection, a rotating connection, a magnetic connection, etc.

[0137] In some embodiments, optionally, Fig.10 As shown, a filter 122 is arranged inside or outside the air hole 1182. By utilizing its good air permeability and filtering ability, it can effectively block dust, dirt and other particulate matter, prevent them from entering the internal components through the air hole 1182, and protect the hydrophilic membrane 102 and other key components.

[0138] Specifically, the filter 122 can be directly embedded in or fixed on the inner side of the air vent 1182 to form a protective barrier. This connection ensures that the filter 122 can effectively intercept pollutants entering the air vent 1182 without affecting the flow of air and water vapor.

[0139] It can be understood that the filter 122 can effectively filter external pollutants, ensure the cleanliness of the internal environment, and maintain the performance and safety of the equipment.

[0140] like Fig.11 As shown, an embodiment of the second aspect of the present application provides an energy storage device 200, including a box body 201 and a heat dissipation assembly 100. By arranging a heat dissipation element 202 in the box body 201, the heat dissipation element 202 can be dissipated by utilizing the characteristics of the hydrophilic membrane 102. The heat dissipation assembly 100 ensures that the heat dissipation element 202 maintains a suitable temperature during operation through an effective heat dissipation mechanism, thereby preventing performance degradation and safety hazards caused by overheating.

[0141] It should be emphasized that for the working scenario of the battery of the energy storage device 200, the hydrophilic membrane 102 can be used to dissipate the heat of the battery during charging and discharging. When the battery is not charging and discharging, the hydrophilic membrane 102 can gradually absorb water vapor in the environment to meet subsequent heat dissipation needs.

[0142] It can be understood that under the action of the hydrophilic membrane 102, the heat dissipation of the battery is ensured and the maintenance cost is reduced.

[0143] Since the energy storage device 200 includes any of the above-mentioned heat dissipation components 100 , it has the beneficial effects of any of the above-mentioned heat dissipation components 100 , which will not be described in detail here.

[0144] The energy storage device 200 includes but is not limited to energy storage batteries, energy storage inverters and other devices.

[0145] like Fig.12 and Fig.13 As shown, Fig.12 A temperature schematic diagram showing an energy storage device according to an embodiment of the present utility model charging at 0.5C for 1 hour at a temperature of 45°C; Fig.13The schematic diagram shows the temperature of the energy storage device without heat dissipation components in the energy storage device, which is charged at 45°C for 1 hour at 0.5C. By comparison, it can be clearly seen that Fig.12 The temperature of the highest point in the middle part of the left structure is significantly lower than Fig.13 The temperature at the highest point in the temperature is clearly visible from the color Fig.12 The color is darker. The heat dissipation effect of this solution due to the provision of the hydrophilic film is much greater than the heat dissipation effect without the provision of the hydrophilic film.

[0146] like Fig.14 and Fig.15 As shown, Fig.14 A temperature schematic diagram showing an energy storage device according to an embodiment of the present utility model charging at 1C for 1 hour at a temperature of 45°C; Fig.15 The schematic diagram shows the temperature of the energy storage device without heat dissipation components at 45°C and 1C for 1 hour. Fig.14 The temperature of the highest point in the middle part of the left structure is significantly lower than Fig.15 The temperature at the highest point in the temperature is clearly visible from the color Fig.14 The color is darker, and the heat dissipation effect of the hydrophilic film in this scheme is better.

[0147] According to the heat dissipation component and energy storage device provided by the utility model, the temperature difference is used to actively absorb moisture in the air, and the heat is taken away through phase change, which significantly improves the heat dissipation efficiency. At the same time, frequent maintenance is not required, and the product life is extended. On this basis, there is no fan design and no noise pollution. It is particularly suitable for use scenarios such as household energy storage that have a long maintenance cycle and are sensitive to noise.

[0148] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0149] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0150] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0151] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heat dissipation component, characterized in that: Used to dissipate heat from a heat sink, the heat dissipation assembly includes: A waterproof breathable membrane, part of which is in contact with the heat dissipation element, and part of which forms a cavity between the waterproof breathable membrane and the heat dissipation element; Wherein, a hydrophilic membrane is arranged in the cavity.

2. The heat dissipation assembly according to claim 1, characterized in that: The heat dissipation element is made of metal, and the heat dissipation assembly further includes: The viscose film is arranged between the hydrophilic film and the heat dissipation element, part of the waterproof and breathable film is connected to the viscose film, and the cavity is formed between part of the waterproof and breathable film and the viscose film.

3. The heat dissipation assembly according to claim 2, characterized in that: The adhesive film specifically comprises: A laminated adhesive base layer and an adhesive layer; Wherein, the material of the adhesive base layer is ethylene terephthalate, and the material of the adhesive layer is acrylic adhesive.

4. The heat dissipation assembly according to claim 3, characterized in that: The thickness of the adhesive base layer is 15 μm to 25 μm, and the thickness of the adhesive layer is 25 μm to 35 μm.

5. The heat dissipation assembly according to claim 1, characterized in that: The heat dissipation component is made of plastic material, and the waterproof breathable membrane is welded to the heat dissipation component.

6. The heat dissipation assembly according to claim 1, characterized in that: Also includes: The grid structure is arranged on a side of the hydrophilic membrane facing the waterproof breathable membrane, and / or on a side of the waterproof breathable membrane facing the hydrophilic membrane.

7. The heat dissipation assembly according to claim 1, characterized in that: The waterproof breathable membrane specifically comprises: A base layer, wherein the base layer is formed with a microporous structure, and the pore size of the microporous structure is 0.1 μm to 10 μm; The hydrophobic layer is arranged on a side of the base layer away from the hydrophilic film.

8. The heat dissipation assembly according to claim 1, characterized in that: Also includes: A plurality of brackets are cross-arranged to form a plurality of hydrophilic regions, and the hydrophilic membrane is arranged in each of the hydrophilic regions.

9. The heat dissipation assembly according to claim 8, characterized in that: Also includes: A water storage tank is arranged on the bracket, and each of the water storage tanks is connected to at least one of the hydrophilic membranes.

10. The heat dissipation assembly according to claim 1, characterized in that: The thickness of the hydrophilic film is 0.2 mm to 1.5 mm.

11. The heat dissipation assembly according to claim 1, characterized in that: Also includes: A cover plate structure, arranged on a side of the waterproof and breathable membrane away from the hydrophilic membrane, the cover plate structure comprising a plurality of breathable holes; A switch structure is movably connected to the cover structure, and the switch structure is used to open and close the air vent.

12. The heat dissipation assembly according to claim 11, characterized in that: Also includes: The filter screen is arranged on the air vent.

13. An energy storage device, characterized in that: include: A box body, wherein heat dissipation components are arranged in the box body; The heat dissipation assembly according to any one of claims 1 to 12 is used to dissipate heat from the heat element to be dissipated.

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