A wind-water heat exchange device and energy storage converter

Abstract

The present application relates to the technical field of energy storage device, specifically relates to a kind of wind water heat exchange device and energy storage converter.The utility model provides a kind of wind water heat exchange device, first, cold liquid enters wind water heat exchange device by inlet joint, then is stored in first liquid cooling cavity, then parallelly flows into each heat exchange channel, and the cold liquid of each heat exchange channel flows out converges in second liquid cooling cavity, from outlet joint flows out.Under the action of fan, air circulates between heat exchange channel, accelerates the heat exchange between heat exchange channel and air, makes the heat exchange effect between different heat exchange channels more balanced, so that wind water heat exchange device reaches better heat exchange effect by the way of combination of air cooling and liquid cooling, solves the technical problem that existing liquid cooling plate cannot satisfy the heat management demand of energy storage converter.

Description

Technical Field

[0001] This invention relates to the field of energy storage equipment technology, specifically to a wind-water heat exchange device and an energy storage converter. Background Technology

[0002] Energy storage systems typically include battery packs, power storage converters (PCS), battery management systems (BMS), and energy management systems (EMS). A power storage converter is a bidirectional, controllable switching device that connects the energy storage battery to the grid / load, directly controlling the charging and discharging process and enabling flexible conversion between AC and DC power.

[0003] With the explosive growth in energy storage demand, the capacity and energy density of energy storage systems are continuously increasing. Consequently, the power and DC-side voltage of energy storage converters are also rising. For high-power energy storage converters, the heat generated by power devices is also higher. Therefore, the thermal management requirements for energy storage converters are becoming increasingly stringent, and simply using liquid-cooled plates for thermal management is insufficient to meet these requirements. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a wind-water heat exchange device and an energy storage converter, which solves the technical problem that existing liquid cooling plates cannot meet the thermal management requirements of energy storage converters.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a water-cooled heat exchange device, including a base and a fan mounted on the base. The base includes a first liquid-cooled cavity, a second liquid-cooled cavity, and a heat exchange assembly disposed between the first and second liquid-cooled cavities. The fan is correspondingly disposed with respect to the heat exchange assembly. The heat exchange assembly includes multiple heat exchange channels, and the first and second liquid-cooled cavities are connected through these channels. The first liquid-cooled cavity is provided with a liquid inlet connector, and the second liquid-cooled cavity is provided with a liquid outlet connector.

[0007] In one possible implementation, the heat exchange assembly further includes a plurality of heat exchange fins disposed between adjacent heat exchange channels.

[0008] In one possible implementation, the plurality of heat exchange fins are arranged at intervals.

[0009] In one possible implementation, the plurality of heat exchange fins are arranged in a zigzag pattern.

[0010] In one possible implementation, the plurality of heat exchange fins are arranged in a grid pattern.

[0011] This utility model provides an energy storage converter, including the above-mentioned wind-water heat exchange device.

[0012] In one possible implementation, the energy storage converter further includes a housing and liquid-cooled piping. The air-water heat exchange device is disposed within the housing, which has an inlet and an outlet. The liquid inlet connector is connected to the inlet via the liquid-cooled piping, and the liquid outlet connector is connected to the outlet via the liquid-cooled piping.

[0013] The beneficial effects of this invention are as follows: Compared with the prior art, firstly, the coolant enters the air-water heat exchanger through the inlet connector, then is stored in the first liquid-cooled cavity, and then flows in parallel into each heat exchange channel. The coolant flowing out of each heat exchange channel gathers in the second liquid-cooled cavity and flows out from the outlet connector. Under the action of the fan, air circulates between the heat exchange channels, accelerating the heat exchange between the heat exchange channels and the air, making the heat exchange effect between different heat exchange channels more balanced. Thus, the air-water heat exchanger achieves a better heat exchange effect through the combination of air cooling and liquid cooling, solving the technical problem that existing liquid cooling plates cannot meet the thermal management requirements of energy storage converters. Attached Figure Description

[0014] Figure 1 A schematic diagram of the structure of a wind-water heat exchange device provided by this utility model.

[0015] Figure 2 A schematic diagram of another type of wind-water heat exchange device provided by this utility model.

[0016] Figure 3 This is a schematic diagram of the structure of multiple heat exchange fins arranged at intervals according to the present invention.

[0017] Figure 4 This is a schematic diagram of the structure of multiple heat exchange fins arranged in a zigzag pattern according to the present invention.

[0018] Figure 5 A schematic diagram of the structure of multiple heat exchange fins arranged in a grid pattern according to this utility model.

[0019] Figure 6 A schematic diagram of the structure of an energy storage converter provided for utility model.

[0020] Attached image labels:

[0021] 1. Air-water heat exchange device; 11. Base; 111. First liquid-cooled cavity; 1111. Liquid inlet connector; 112. Second liquid-cooled cavity; 1121. Liquid outlet connector; 113. Heat exchange assembly; 1131. Heat exchange channel; 1132. Heat exchange fins; 12. Fan; 2. Energy storage converter; 21. Shell; 211. Liquid inlet interface; 212. Liquid outlet interface; 22. Liquid-cooled pipeline; 23. Liquid-cooled plate heat exchange device; 24. Inductive heat exchange device. Detailed Implementation

[0022] To solve the above-mentioned technical problems, this utility model provides a wind-water heat exchange device and an energy storage converter. The technical solution and embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can refer to fixed connection, detachable connection, or integral connection; for those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0025] 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 of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0026] like Figure 1 and Figure 2As shown, this utility model provides a water-cooled heat exchange device 1, including a base 11 and a fan 12 mounted on the base 11. The base 11 includes a first liquid-cooled cavity 111, a second liquid-cooled cavity 112, and a heat exchange assembly 113 disposed between the first liquid-cooled cavity 111 and the second liquid-cooled cavity 112. The fan 12 is correspondingly disposed with respect to the heat exchange assembly 113. The heat exchange assembly 113 includes multiple heat exchange channels 1131, and the first liquid-cooled cavity 111 and the second liquid-cooled cavity 112 are connected through the heat exchange channels 1131. The first liquid-cooled cavity 111 is provided with a liquid inlet connector 1111, and the second liquid-cooled cavity 112 is provided with a liquid outlet connector 1121.

[0027] First, the coolant enters the air-water heat exchanger 1 through the inlet connector 1111, then is stored in the first liquid-cooled cavity 111, and then flows in parallel into each heat exchange channel 1131. The coolant flowing out of each heat exchange channel 1131 collects in the second liquid-cooled cavity 112 and flows out from the outlet connector 1121. Under the action of the fan 12, the air circulates between the heat exchange channels 1131, accelerating the heat exchange between the heat exchange channels 1131 and the air, making the heat exchange effect between different heat exchange channels 1131 more balanced. Thus, the air-water heat exchanger 1 achieves a better heat exchange effect through the combination of air cooling and liquid cooling, solving the technical problem that existing liquid cooling plates cannot meet the thermal management requirements of the energy storage converter 2.

[0028] In one embodiment, see Figures 3 to 5 The heat exchange assembly 113 also includes a plurality of heat exchange fins 1132, which are disposed between adjacent heat exchange channels 1131.

[0029] The function of the heat exchange fins 1132 is to increase the contact area with air, thereby improving the heat exchange efficiency. That is, the coolant exchanges heat through the first liquid cooling chamber 111, the second liquid cooling chamber 112 and the heat exchange assembly 113, and the air between the heat exchange assemblies 113 exchanges heat. Then, the cooled / heated air is discharged by the fan 12, thereby further improving the heat exchange efficiency.

[0030] Specifically, such as Figure 3 As shown, multiple heat exchange fins 1132 are arranged at intervals.

[0031] Specifically, such as Figure 4 As shown, multiple heat exchange fins 1132 are arranged in a zigzag pattern.

[0032] Specifically, such as Figure 5 As shown, multiple heat exchange fins 1132 are arranged in a grid pattern.

[0033] See Figure 6 This utility model provides an energy storage converter 2, which includes the above-mentioned wind and water heat exchange device 1.

[0034] In one possible implementation, the energy storage converter 2 further includes a housing 21 and a liquid cooling pipeline 22. The air-water heat exchange device 1 is disposed inside the housing 21, and the housing 21 is provided with a water inlet and a water outlet. The liquid inlet connector 1111 is connected to the water inlet through the liquid cooling pipeline 22, and the liquid outlet connector 1121 is connected to the water outlet through the liquid cooling pipeline 22.

[0035] In one alternative embodiment, such as Figure 6 As shown, the coolant flows into the air-water heat exchanger 1 through the liquid cooling pipe 22, then through the liquid cooling plate heat exchanger 23, and then into the inductive heat exchanger 24. Finally, it flows out through the outlet port 212 of the energy storage converter 2 to the inlet port of the liquid-cooled air conditioner. When the outside temperature is high, the liquid-cooled air conditioner operates in cooling mode. The cooled coolant flows into the energy storage converter 2 through the inlet port 211, passes through the air-water heat exchanger 1, then through the liquid cooling plate heat exchanger 23, and then into the inductive heat exchanger 24. Finally, the coolant, which has heated up due to absorbing heat, flows out through the outlet port 212 of the energy storage converter 2 to the inlet port of the liquid-cooled air conditioner, is cooled again, and then output to the energy storage converter 2. This cycle repeats, allowing the coolant to carry away the heat emitted by the energy storage converter 2, thus lowering the temperature of the energy storage converter 2. When the outside temperature is low, the liquid-cooled air conditioner operates in heating mode, and the flow path of the refrigerant is the same as that of the cooling mode described above, so it will not be repeated here.

[0036] The above description is merely a preferred embodiment of the present utility model, and the specific embodiments described above are not intended to limit the present utility model. Various modifications and variations can be made within the scope of the technical concept of the present utility model. All refinements, modifications, or equivalent substitutions made by those skilled in the art based on the above description are within the scope of protection of the present utility model.

Claims

1. A wind-water heat exchange device, characterized in that, Includes a base and a fan mounted on the base; The base includes a first liquid-cooled cavity, a second liquid-cooled cavity, and a heat exchange assembly disposed between the first liquid-cooled cavity and the second liquid-cooled cavity, and the fan is disposed correspondingly to the heat exchange assembly; The heat exchange assembly includes multiple heat exchange channels, and the first liquid cooling cavity and the second liquid cooling cavity are connected through the heat exchange channels; The first liquid cooling chamber is provided with a liquid inlet connector, and the second liquid cooling chamber is provided with a liquid outlet connector.

2. The air-water heat exchange device according to claim 1, characterized in that, The heat exchange assembly also includes a plurality of heat exchange fins, which are disposed between adjacent heat exchange channels.

3. The air-water heat exchange device according to claim 2, characterized in that, The multiple heat exchange fins are arranged at intervals.

4. The air-water heat exchange device according to claim 2, characterized in that, The multiple heat exchange fins are arranged in a zigzag pattern.

5. The air-water heat exchange device according to claim 2, characterized in that, The multiple heat exchange fins are arranged in a grid pattern.

6. An energy storage converter, characterized in that, Includes the air-water heat exchange device as described in any one of claims 1 to 5.

7. The energy storage converter according to claim 6, characterized in that, The energy storage converter also includes a housing and liquid cooling pipelines. The air-water heat exchange device is installed inside the housing, and the housing is provided with an inlet and an outlet. The liquid inlet connector is connected to the water inlet via the liquid cooling pipeline, and the liquid outlet connector is connected to the water outlet via the liquid cooling pipeline.

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