Liquid cooling and air cooling integrated temperature control unit for energy storage

Abstract

The utility model discloses a liquid cooling and air cooling integrated temperature control unit for energy storage, which comprises a cabinet body, a liquid cooling unit, a liquid cooling plate, a surface air cooler and a fan, a unit chamber, a battery chamber and an electric appliance chamber are arranged in the cabinet body, the liquid cooling unit is arranged in the unit chamber, and the liquid cooling plate is arranged in the battery chamber to exchange heat with a battery pack in the battery chamber. The surface air cooler is arranged in the electric appliance chamber, and the fan is arranged on one side of the surface air cooler so as to blow air cooled by the surface air cooler to an electric device needing to be cooled in the electric appliance chamber; wherein the liquid cooling unit is connected with the liquid cooling plate through a pipeline, the liquid cooling plate is connected with the surface air cooler through a pipeline, and the surface air cooler is connected with the liquid cooling unit through a pipeline. Liquid cooling and air cooling can be respectively carried out on battery packs and electric devices with different temperature requirements by using a single cold source; a cooling system in the electrical room is simple in equipment, low in failure rate and low in manufacturing cost; and internal circulation cooling is also considered, and the application requirement for high sealing performance is met.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage temperature control systems, and in particular to a liquid-cooled and air-cooled integrated temperature control unit for energy storage. Background Art

[0002] Liquid cooling units in the energy storage field are continuously developing towards customization, high power, and high energy efficiency. The harsh operating environment requires liquid cooling units to have high corrosion resistance and long service life, while higher customization requires liquid cooling units to meet more customer usage needs.

[0003] Taking outdoor cabinets as an example, existing energy storage liquid cooling systems typically use a liquid cooling unit to cool the battery cluster, while fans or separate refrigeration and air conditioning equipment cool the electrical compartment. While fan cooling reduces costs, the electrical compartment's air ducts must be open to the outside world, which doesn't meet the high salt fog conditions experienced near the sea. Furthermore, the electrical compartment's corrosion resistance doesn't meet requirements. Furthermore, due to wind pressure and blockage, heat dissipation often falls short of expectations. While internal circulation cooling can be used with air conditioning and refrigeration equipment, this increases the cost of the air conditioning equipment.

[0004] In view of the special conditions of high salt fog near the sea, the special requirements of high sealing, and the special requirements of different cooling requirements for batteries and electrical equipment, it is urgent to develop a new energy storage temperature control system. Utility Model Content

[0005] To this end, the present invention provides a liquid-cooled and air-cooled integrated temperature control unit for energy storage to solve or alleviate one or more of the above-mentioned problems.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A liquid-cooled and air-cooled integrated temperature control unit for energy storage, comprising a cabinet, a liquid-cooled unit, a liquid-cooled plate, a surface cooler and a fan. The cabinet is provided with a unit room, a battery room and an electrical room. The liquid-cooled unit is arranged in the unit room, the liquid-cooled plate is arranged in the battery room to exchange heat with the battery pack in the battery room, the surface cooler is arranged in the electrical room, and the fan is arranged on one side of the surface cooler to blow the air cooled by the surface cooler to the electrical components in the electrical room that need cooling; wherein, the liquid-cooled unit is connected to the liquid-cooled plate through a pipeline, the liquid-cooled plate is connected to the surface cooler through a pipeline, and the surface cooler is connected to the liquid-cooled unit through a pipeline.

[0008] The liquid cooling unit provides cooling capacity as a cold source. The cooling capacity enters the liquid cooling plate, thereby cooling the battery pack (battery pack, battery cluster). The remaining cooling capacity enters the surface cooler. The fan blows the cooled air from the surface cooler to the electrical components, thereby cooling the electrical components. In this way, a single cold source can be used to perform liquid cooling and air cooling for battery packs and electrical components with different temperature requirements. In particular, for the cooling of electrical components, there is no need to set up separate air conditioning equipment to avoid increased costs, nor is there a need to connect to the outside for air cooling. Instead, an internal circulation method is used for air cooling, which can meet the use conditions of high salt fog near the sea. The anti-corrosion level of the electrical room can also meet the requirements. It is not affected by wind pressure and dirt blockage. The heat dissipation effect of the electrical components is stable and can meet expectations.

[0009] Furthermore, the energy storage liquid-cooled and air-cooled integrated temperature control unit also includes a controller, which is electrically connected to the liquid-cooled unit and the fan to control the flow rate of the liquid-cooled unit and the air volume of the fan.

[0010] By controlling the flow of the liquid cooling unit through the controller, the temperature of the battery pack can be adjusted so that the battery pack operates at an appropriate temperature; by controlling the air volume (wind speed) of the fan through the controller, the temperature of the electrical components can be adjusted so that the electrical components operate at an appropriate temperature.

[0011] Furthermore, temperature sensors are respectively provided in the battery chamber and the electrical chamber, and the temperature sensors are electrically connected to the controller.

[0012] By setting up a temperature sensor to provide temperature feedback to the controller, the flow of the liquid cooling unit and the air volume of the fan can be better adjusted to ensure that the ambient temperature of the battery pack and electrical components is within an appropriate temperature range.

[0013] Furthermore, there are multiple liquid cooling plates, and the multiple liquid cooling plates are arranged in parallel.

[0014] The cooling capacity supplied by the liquid cooling unit is distributed to multiple liquid cooling plates. The parallel setting helps to evenly distribute the cooling capacity. Multiple liquid cooling plates cool multiple battery packs to ensure that the ambient temperature of each battery pack is within an appropriate temperature range.

[0015] Furthermore, there are multiple fans, and the multiple fans are distributed at intervals on the side of the surface cooler.

[0016] Different fans are used to cool different electrical components to ensure that the ambient temperature of each electrical component is within the appropriate temperature range.

[0017] The utility model has the following advantages:

[0018] Using a single cold source, battery packs and electrical components with different temperature requirements can be cooled by liquid or air respectively; the cooling system equipment in the electrical room is simple, with a low failure rate and low cost; it also takes into account internal circulation cooling and meets the applicable requirements of high sealing.

[0019] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present application will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0021] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, provided they do not affect the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

[0022] Figure 1 A schematic diagram of the working principle of a liquid-cooled and air-cooled integrated temperature control unit for energy storage provided by an embodiment of the utility model;

[0023] Figure 2 This is a structural schematic diagram of a liquid-cooled and air-cooled integrated temperature control unit for energy storage provided by an embodiment of the utility model.

[0024] In the figure: 1. Liquid cooling unit; 2. Surface cooler; 3. Fan; 4. Liquid cooling plate; 5. Controller; 6. Battery pack; 7. Cabinet. DETAILED DESCRIPTION

[0025] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present application. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0026] like Figure 1 and 2As shown, this embodiment provides a liquid-cooled and air-cooled integrated temperature control unit for energy storage, including a cabinet 7, a liquid cooling unit 1, a liquid cooling plate 4, a surface cooler 2 and a fan 3.

[0027] Cabinet 7 houses an engine room, a battery room, and an electrical room (also known as an electrical room). A liquid cooling unit 1 is located within the engine room, with at least one side wall connected to the outside world for ventilation and heat exchange. A liquid cooling plate 4 is located within the battery room, which houses a battery cluster (battery pack 6). The liquid cooling plate 4 is in heat exchange contact with the battery pack 6 (e.g., a contact connection, exchanging heat via heat conduction). The liquid cooling plate 4 utilizes the cooling capacity of the liquid cooling unit 1 to cool the battery pack 6. A surface cooler 2 is located within the electrical room, utilizing its residual cooling capacity (the cooling capacity after heat exchange between the liquid cooling plate 4 and the battery pack 6) to cool the air. A fan 3 is located on one side of the surface cooler 2 to blow the air cooled by the surface cooler 2 toward the electrical components within the electrical room that require cooling. In this embodiment, the fan 3 is located between the surface cooler 2 and the electrical components, and is immediately adjacent to the surface cooler 2, thereby drawing cool air from the surface cooler 2 into the fan 3 and blowing it toward the electrical components. The liquid cooling unit 1 is connected to the liquid cooling plate 4 through a pipe, the liquid cooling plate 4 is connected to the surface cooler 2 through a pipe, and the surface cooler 2 is connected to the liquid cooling unit 1 through a pipe, completing the overall internal circulation.

[0028] The liquid cooling unit 1 provides cooling capacity as a cold source. The cooling capacity enters the liquid cooling plate 4, thereby cooling the battery pack 6. The remaining cooling capacity enters the surface cooler 2. The fan 3 blows the air cooled by the surface cooler 2 to the electrical components, thereby cooling the electrical components. In this way, a single cold source can be used to perform liquid cooling and air cooling on the battery pack 6 and electrical components with different temperature requirements. In particular, for the cooling of electrical components, there is no need to set up separate air-conditioning equipment to avoid increased costs, nor is there a need to connect to the outside for air cooling. Instead, an internal circulation method is used for air cooling, which can meet the use conditions of high salt fog near the sea. The anti-corrosion level of the electrical room can also meet the requirements. Moreover, it is not affected by wind pressure and dirt blockage. The heat dissipation effect of the electrical components is stable and can meet expectations.

[0029] In one embodiment, the integrated liquid-cooled and air-cooled temperature control unit for energy storage further includes a controller 5, which is electrically connected to the liquid-cooled unit 1 and the fan 3 to control the flow rate of the liquid-cooled unit 1 and the air volume of the fan 3. By controlling the flow rate of the liquid-cooled unit 1 through the controller 5, the temperature of the battery pack 6 can be adjusted to ensure that the battery pack 6 operates at an appropriate temperature; by controlling the air volume (wind speed) of the fan 3 through the controller 5, the temperature of the electrical components can be adjusted to ensure that the electrical components operate at an appropriate temperature.

[0030] In one embodiment, temperature sensors are installed in both the battery compartment and the electrical compartment, and are electrically connected to the controller 5. By providing temperature feedback to the controller 5, the temperature sensors can better regulate the flow rate of the liquid cooling unit 1 and the air volume of the fan 3, ensuring that the ambient temperature of the battery pack 6 and electrical components remains within a suitable temperature range. The temperature sensor in the battery compartment monitors the temperature of the battery pack 6, such as the battery casing temperature and the battery cell temperature. The temperature sensor in the electrical compartment monitors the temperature of the electrical components, such as the internal temperature, surface temperature, or the surrounding air temperature.

[0031] In one embodiment, multiple liquid cooling plates 4 are provided, arranged in parallel. The refrigerant flowing from each liquid cooling plate 4 is then aggregated and fed into the surface cooler 2. The cooling capacity supplied by the liquid cooling unit 1 is distributed to the multiple liquid cooling plates 4. The parallel arrangement facilitates even distribution. The multiple liquid cooling plates 4 cool the multiple battery packs 6, ensuring that the ambient temperature of each battery pack 6 remains within an appropriate temperature range.

[0032] In one embodiment, multiple fans 3 are provided, spaced apart on the sides of the surface cooler 2. Different fans 3 are used to cool different electrical components, ensuring that the ambient temperature of each component remains within an appropriate range. Preferably, the controller 5 independently controls each fan 3, thereby controlling the air volume. This allows for a higher air volume for electrical components with lower operating temperatures.

[0033] The integrated liquid-cooled and air-cooled temperature control unit for energy storage provided by the above-mentioned embodiment has the following advantages: Because the battery cluster requires high cooling precision, all coolant is used to cool the battery cluster first, resulting in a higher cooling capacity than the battery cluster requires. The remaining cooling capacity after cooling the battery cluster is used to cool the electrical room, which generally maintains a stable temperature range. Cooling precision requirements are not high, and the remaining cooling capacity fully meets the electrical room's cooling requirements. Furthermore, fan speed regulation allows the electrical room's temperature to be controlled within a certain range. This fully utilizes the cooling capacity of the liquid cooling unit, achieving cooling of the electrical room while simultaneously meeting the battery cluster's cooling requirements. The cooling system within the electrical room is simple, has a low failure rate, and is inexpensive. Furthermore, internal circulation cooling is utilized, meeting the high sealing requirements for practical applications.

[0034] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0035] Furthermore, 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 being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0036] In this application, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0037] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0038] The disclosure above provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described above. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0039] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in this application, and such modifications or substitutions should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A liquid-cooled and air-cooled integrated temperature control unit for energy storage, characterized in that: It includes a cabinet, a liquid cooling unit, a liquid cooling plate, a surface cooler and a fan. The cabinet is provided with a unit room, a battery room and an electrical room. The liquid cooling unit is arranged in the unit room, the liquid cooling plate is arranged in the battery room to exchange heat with the battery pack in the battery room, the surface cooler is arranged in the electrical room, and the fan is arranged on one side of the surface cooler to blow the air cooled by the surface cooler to the electrical components that need to be cooled in the electrical room; wherein, the liquid cooling unit is connected to the liquid cooling plate through a pipe, the liquid cooling plate is connected to the surface cooler through a pipe, and the surface cooler is connected to the liquid cooling unit through a pipe.

2. The liquid-cooled and air-cooled integrated temperature control unit for energy storage according to claim 1, characterized in that: The energy storage liquid-cooled and air-cooled integrated temperature control unit further includes a controller, which is electrically connected to the liquid-cooled unit and the fan to control the flow rate of the liquid-cooled unit and the air volume of the fan.

3. The liquid-cooled and air-cooled integrated temperature control unit for energy storage according to claim 2, characterized in that: The battery chamber and the electrical appliance chamber are respectively provided with temperature sensors, and the temperature sensors are electrically connected to the controller.

4. The liquid-cooled and air-cooled integrated temperature control unit for energy storage according to claim 1, characterized in that: There are multiple liquid cooling plates, and the multiple liquid cooling plates are arranged in parallel.

5. The liquid-cooled and air-cooled integrated temperature control unit for energy storage according to claim 1, characterized in that: There are multiple fans, and the multiple fans are distributed at intervals on the side of the surface cooler.

Images