Cooling system and energy storage system with same

Abstract

The utility model discloses a cooling system and an energy storage system with the cooling system, the cooling system comprises a main cold channel, the main cold channel comprises a refrigerant channel and a cooling channel, the refrigerant channel and the cooling channel are communicated; the refrigerant channels are formed in the cold plates, the number of the cold plates is multiple, and the multiple cold plates are arranged at intervals in the thickness direction; and the cooling pipelines are connected with the two adjacent cooling plates, and the cooling channels are formed in the cooling pipelines. According to the cooling system disclosed by the utility model, a secondary pipeline is omitted, and the cooling pipeline is directly connected between the cold plates, so that the length of the pipeline is shortened, the pipeline of the cooling system is optimized, the structure of the cooling system is simplified, the difficulty of assembly and maintenance is reduced, the resistance is reduced, the leakage risk of cooling liquid is reduced, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage system manufacturing, in particular to a cooling system and an energy storage system having the same. Background Art

[0002] It is pointed out in the related technology that the energy storage system is a new energy device that stores a large number of energy storage lithium batteries in a cabinet or container to perform peak shaving and valley filling, frequency modulation and other functions. It has the advantages of easy installation, easy transportation, and modularization.

[0003] The current thermal management solution for liquid-cooled energy storage systems consists of cold plates, diodes, tertiary tubes, quick-connect connectors, tees, exhaust valves, etc., of which quick-connect connectors are used for quick maintenance in the later stage, diodes and tertiary tubes are used for the transportation of coolant, and exhaust valves are used to remove air from the cold plates and pipelines during liquid injection. This type of piping system has the disadvantages of high cost and complex installation, and requires the configuration of mounting orifice plates and fixing holes on the battery cluster stand. Its operating path is as follows: The coolant output by the water machine enters the battery cluster pipeline system through the diode, and the tee on the diode distributes the flow to the tertiary tube, and finally transmits it to the battery pack through the tertiary tube. The entire transportation and distribution system is relatively complex and the pipeline resistance is increased. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a cooling system with a simple structure and low production cost.

[0005] The utility model also provides an energy storage system with the cooling system.

[0006] According to the first aspect of the present invention, the cooling system includes: a main cold channel, the main cold channel includes a connected refrigerant channel and a cooling channel; a cold plate, the refrigerant channel is formed in the cold plate, the cold plate includes a plurality of cold plates, and the plurality of cold plates are arranged at intervals in the thickness direction; a cooling pipeline, the cooling pipeline is connected to two adjacent cold plates, and the cooling channel is formed in the cooling pipeline.

[0007] According to the cooling system of the utility model, by eliminating the secondary pipeline, the cooling pipeline is directly connected between the cold plates, the length of the pipeline is shortened, the pipeline of the cooling system is optimized, the structure of the cooling system is simplified, the difficulty of assembly and maintenance is reduced, the resistance is reduced, the risk of leakage of the coolant is reduced, and the production cost is reduced.

[0008] In some embodiments, the cold plate is formed with a first through hole and a second through hole, and the first through hole and the second through hole both penetrate the cold plate along the thickness direction of the cold plate, and the first through hole and the second through hole are respectively arranged at both ends of the refrigerant channel, and the first through hole of each cold plate is arranged opposite to the first through hole of the adjacent cold plate, and the second through hole of each cold plate is arranged opposite to the second through hole of the adjacent cold plate.

[0009] In some embodiments, the cooling channel is connected to the refrigerant channels of two adjacent cold plates through the first through hole, and the cooling channel is connected to the refrigerant channels of two adjacent cold plates through the second through hole, and the first through hole and the second through hole are located on one side of the cold plate.

[0010] In some embodiments, first joints are disposed at both ends of the first through hole, second joints are disposed at both ends of the second through hole, the cooling pipeline is connected to the cold plate via the first joints, and the cooling pipeline is connected to the cold plate via the second joints.

[0011] In some embodiments, the cooling pipeline is formed with a buffer section, and the buffer section extends in a vertical direction along an arc line convex toward one side.

[0012] In some embodiments, a liquid inlet is formed at one end of the main cold channel, and a liquid outlet is formed at the other end of the main cold channel, and the height of the liquid outlet is not lower than the height of the liquid inlet.

[0013] In some embodiments, the cooling system further includes: an exhaust valve, the exhaust valve being located above the plurality of cold plates, the exhaust valve being in communication with one of the first through hole and the second through hole.

[0014] In some embodiments, the cooling system further includes: a connecting pipe, the connecting pipe being connected between the exhaust valve and the cooling pipeline; a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe being connected at the position of the liquid inlet, and the liquid outlet pipe being connected at the position of the liquid outlet.

[0015] In some embodiments, the distance between two adjacent cold plates is between 180 mm and 300 mm.

[0016] The energy storage system according to the second aspect of the utility model includes the cooling system according to the first aspect of the utility model.

[0017] According to the energy storage system of the utility model, by providing the cooling system of the first aspect, the overall performance of the energy storage system is improved, the cooling effect of the energy storage system is enhanced, the structure of the energy storage system is simplified, and the cost of the energy storage system is reduced.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of a cooling system according to an embodiment of the utility model;

[0020] Figure 2 yes Figure 1 A schematic diagram of a front view of a cooling system shown in ;

[0021] Figure 3 is a schematic diagram of a cooling system according to another embodiment of the utility model;

[0022] Figure 4 yes Figure 1 and Figure 3 Schematic diagram of the cold plate shown in;

[0023] Figure 5 yes Figure 4 A schematic diagram of a side view of a cold plate shown in FIG.

[0024] Figure 6 yes Figure 1 and Figure 3 Schematic diagram of the cooling circuit shown in .

[0025] Reference numerals:

[0026] 100. Cooling system;

[0027] 1. Cold plate; 11. First joint; 12. Second joint;

[0028] 2. Cooling pipeline; 21. Buffer section;

[0029] 3. Liquid inlet; 4. Liquid outlet;

[0030] 5. Exhaust valve; 6. Connecting pipe;

[0031] 7. Liquid inlet pipe; 8. Liquid outlet pipe;

[0032] 9. Plug. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0034] Reference below Figure 1-Figure 6A cooling system 100 according to an embodiment of the first aspect of the present invention is described.

[0035] like Figure 1-Figure 6 As shown, the cooling system 100 according to the embodiment of the first aspect of the utility model includes: a main cold channel, a cold plate 1 and a cooling pipeline 2.

[0036] Specifically, the main cold channel includes a connected refrigerant channel and a cooling channel, the refrigerant channel is formed in the cold plate 1, the cold plate 1 includes a plurality of cold plates 1, the plurality of cold plates 1 are arranged at intervals in the thickness direction, the cooling pipeline 2 is connected to two adjacent cold plates 1, and the cooling channel is formed in the cooling pipeline 2. Therefore, the cooling system 100 has a simple structure and is easy to assemble.

[0037] According to the cooling system 100 of the embodiment of the utility model, by eliminating the secondary pipeline, the cooling pipeline 2 is directly connected between the cold plates 1, thereby shortening the length of the pipeline, optimizing the pipeline of the cooling system 100, simplifying the structure of the cooling system 100, reducing the difficulty of assembly and maintenance, reducing resistance, reducing the risk of leakage of the coolant, and reducing production costs.

[0038] In some embodiments of the utility model, the cold plate 1 is formed with a first through hole and a second through hole, both of which penetrate the cold plate 1 along the thickness direction of the cold plate 1, and the first through hole and the second through hole are respectively arranged at both ends of the refrigerant channel, and the first through hole of each cold plate 1 is arranged opposite to the first through hole of the adjacent cold plate 1, and the second through hole of each cold plate 1 is arranged opposite to the second through hole of the adjacent cold plate 1. Therefore, the cold plate 1 has a simple structure and a clever design, and the cooling efficiency of the cooling system 100 is improved.

[0039] In some embodiments of the utility model, the cooling channel is connected to the refrigerant channels of two adjacent cold plates 1 through a first through hole, and the cooling channel is connected to the refrigerant channels of two adjacent cold plates 1 through a second through hole, and the first through hole and the second through hole are located on one side of the cold plate 1. Thus, the connection method of the cooling channel and the refrigerant channel is simplified, the distance between the cooling pipeline 2 and the cold plate 1 is shortened, and the heat absorbed by the refrigerant in the process of flowing in the pipeline is reduced, thereby ensuring the cooling effect of the cooling system 100.

[0040] In some embodiments of the present invention, Figure 4 As shown, first joints 11 are provided at both ends of the first through hole, second joints 12 are provided at both ends of the second through hole, the cooling pipe 2 is connected to the cold plate 1 through the first joint 11, and the cooling pipe 2 is connected to the cold plate 1 through the second joint 12. Therefore, the provision of the first joint 11 and the second joint 12 simplifies the connection method of the cooling system 100, reduces the production difficulty of the cooling system 100, and reduces the production cost of the cooling system 100.

[0041] In some embodiments of the present invention, Figure 6 As shown, the cooling pipeline 2 is formed with a buffer section 21, and the buffer section 21 extends along an arc convex toward one side in the vertical direction. Thus, the refrigerant in the cooling pipeline 2 is prevented from flowing too fast and absorbing heat incompletely, thereby improving the cooling efficiency and cooling effect of the cooling system 100.

[0042] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, a liquid inlet 3 is formed at one end of the main cold channel, and a liquid outlet 4 is formed at the other end of the main cold channel, and the height of the liquid outlet 4 is not lower than the height of the liquid inlet 3. In other words, the height of the liquid outlet 4 can be higher than the height of the liquid inlet 3, and the height of the liquid outlet 4 can also be equal to the height of the liquid inlet 3. Thus, it is ensured that the main cold pipeline is completely filled with refrigerant, the structural design is ingenious, and the structure of the cooling system 100 is optimized.

[0043] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, the cooling system 100 further includes: an exhaust valve 5, which is located above the plurality of cold plates 1, and is connected to one of the first through hole and the second through hole. Thus, the exhaust valve 5 is provided to prevent the gas generated in the main cooling pipeline from filling the main cooling pipeline, thereby ensuring the safety of the cooling system 100.

[0044] In some embodiments of the present invention, the cooling system 100 further includes: a connecting pipe 6, a liquid inlet pipe 7 and a liquid outlet pipe 8, the connecting pipe 6 is connected between the exhaust valve 5 and the cooling pipeline 2, the liquid inlet pipe 7 is connected at the position of the liquid inlet 3, and the liquid outlet pipe 8 is connected at the position of the liquid outlet 4. Therefore, the cooling system 100 has a simple structure, reduces the difficulty of assembly and production cost, and is easy to assemble and maintain.

[0045] In some embodiments of the present invention, the distance between two adjacent cold plates 1 is between 180 mm and 300 mm. For example, the distance between two adjacent cold plates 1 can be 180 mm, 190 mm, 200 mm, 210 mm, 220 mm, 230 mm, 240 mm, 250 mm, 260 mm, 270 mm, 280 mm, 290 mm, 300 mm, etc.

[0046] In some embodiments, the through hole of the cold plate 1 at the middle end of the cooling system 100 where the liquid inlet 3 or the liquid outlet 4 and the exhaust valve 5 are not provided is blocked with a plug 9 to prevent the coolant from flowing out of the main cold channel.

[0047] The following will refer to Figure 1-Figure 6 The cooling system 100 according to two specific embodiments of the present invention is described.

[0048] Embodiment 1,

[0049] Reference Figure 1 and Figure 2 The cooling system 100 is an asymmetric piping system, and the coolant inlet 3 and the outlet 4 are both located at the bottom or top of the cooling system 100. The operation path is: the coolant output by the water machine flows into the bottom (top) inlet of the cooling system 100, flows upward (downward), a part of it enters the cold plate 1 for diversion, and a part of it flows to the next cold plate 1 through the upper pipe joint until it enters the last layer of cold plate 1. After heat exchange in the cold plate 1, the coolant flows out through the pipe joint on the other side of each layer of cold plate 1, and is collected downward (upward) through the pipe, and finally returns to the water machine from the bottom (top) of the cooling system 100 to complete a cycle.

[0050] Embodiment 2:

[0051] like Figure 3 As shown, the cooling system 100 is a same-program piping system, and the operation path is: the coolant output by the water machine flows into the bottom (top) inlet of the cooling system 100, flows upward (downward), a part of it enters the cold plate 1 for diversion, and a part of it flows to the next cold plate 1 through the upper pipe joint, until it enters the last layer of cold plate 1. After the coolant exchanges heat in the cold plate 1, it flows out through the pipe joint on the other side of each layer of cold plate 1, gathers upward (downward) through the pipe, and finally returns to the water machine from the top (bottom) of the cooling system 100, completing a cycle.

[0052] The energy storage system according to the embodiment of the second aspect of the utility model includes the cooling system 100 according to the embodiment of the first aspect of the utility model.

[0053] According to the energy storage system of the embodiment of the utility model, by setting the cooling system 100 of the first embodiment, the overall performance of the energy storage system is improved, the cooling effect of the energy storage system is enhanced, the structure of the energy storage system is simplified, and the cost of the energy storage system is reduced.

[0054] In the description of the present invention, 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 the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0055] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0056] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0058] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A cooling system, characterized in that: include: A main cold channel, the main cold channel comprising a connected refrigerant channel and a cooling channel; A cold plate, wherein the refrigerant channel is formed in the cold plate, the cold plate comprises a plurality of cold plates, and the plurality of cold plates are arranged at intervals in a thickness direction; A cooling pipeline is connected to two adjacent cold plates, and the cooling channel is formed in the cooling pipeline.

2. The cooling system according to claim 1, characterized in that: The cold plate is formed with a first through hole and a second through hole, both of which penetrate the cold plate along the thickness direction of the cold plate, and the first through hole and the second through hole are respectively arranged at both ends of the refrigerant channel, and the first through hole of each cold plate is arranged opposite to the first through hole of the adjacent cold plate, and the second through hole of each cold plate is arranged opposite to the second through hole of the adjacent cold plate.

3. The cooling system according to claim 2, characterized in that: The cooling channel is connected to the refrigerant channels of two adjacent cold plates through the first through hole, and the cooling channel is connected to the refrigerant channels of two adjacent cold plates through the second through hole. The first through hole and the second through hole are located on one side of the cold plate.

4. The cooling system according to claim 3, characterized in that: Both ends of the first through hole are provided with first joints, both ends of the second through hole are provided with second joints, the cooling pipeline is connected to the cold plate through the first joints, and the cooling pipeline is connected to the cold plate through the second joints.

5. The cooling system according to any one of claims 1 to 4, characterized in that: The cooling pipeline is formed with a buffer section, and the buffer section extends along an arc line convex toward one side in a vertical direction.

6. The cooling system according to any one of claims 2 to 4, characterized in that: A liquid inlet is formed at one end of the main cold channel, and a liquid outlet is formed at the other end of the main cold channel. The height of the liquid outlet is not lower than the height of the liquid inlet.

7. The cooling system according to claim 6, characterized in that: Also includes: An exhaust valve is located above the plurality of cold plates, and the exhaust valve is communicated with one of the first through hole and the second through hole.

8. The cooling system according to claim 7, characterized in that: Also includes: A connecting pipe connected between the exhaust valve and the cooling pipeline; A liquid inlet pipe and a liquid outlet pipe, wherein the liquid inlet pipe is connected to the position of the liquid inlet, and the liquid outlet pipe is connected to the position of the liquid outlet.

9. The cooling system according to claim 8, characterized in that: The distance between two adjacent cold plates is between 180 mm and 300 mm.

10. An energy storage system, characterized in that: A cooling system comprising the cooling system of any one of claims 1 to 9.

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