Heat exchange plate and energy storage container

Abstract

The utility model provides a heat exchange plate and an energy storage container, the heat exchange plate comprises a flow channel plate used for exchanging heat with an energy storage battery, the flow channel plate is provided with a heat exchange flow channel allowing a refrigerant to flow, the flow channel plate is provided with a liquid inlet allowing the refrigerant to enter and a liquid outlet allowing the refrigerant to flow out, and the heat exchange flow channel comprises a first flow channel and a second flow channel. Two ends of the first flow channel are respectively connected with the liquid inlet and the liquid outlet; two ends of the second flow channel are respectively connected with the liquid inlet and the liquid outlet; the length of the first flow channel is larger than that of the second flow channel, and the number of the bent sections of the second flow channel is larger than that of the bent sections of the first flow channel. Through the arrangement, the flow resistance difference between the refrigerant in the first flow channel and the second flow channel is reduced, and then the difference between the heat exchange efficiency between the first flow channel and the energy storage battery in the corresponding area and the heat exchange efficiency between the second flow channel and the energy storage battery in the corresponding area is reduced, so that the heat exchange uniformity of the energy storage battery is improved, and the cell temperature difference of different areas of the energy storage battery is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage containers, in particular to a heat exchange plate and an energy storage container. BACKGROUND

[0002] In the field of energy storage containers, heat exchange plates are needed to exchange heat with energy storage batteries so that the energy storage batteries are in an appropriate temperature range. In the process of implementing the present application, the inventors found that the prior art at least has the following technical problems: due to different setting modes of flow channels in the heat exchange plates, the heat exchange uniformity of the heat exchange plates for the energy storage batteries is poor, and then the temperature difference of the battery cells in different areas of the energy storage batteries is large. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the present application provides a heat exchange plate which at least effectively improves the heat exchange uniformity of the heat exchange plate for the energy storage batteries and reduces the temperature difference of the battery cells in different areas of the energy storage batteries. The present application also provides an energy storage container comprising the heat exchange plate.

[0004] In order to achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0005] A heat exchange plate, comprising a flow channel plate for heat exchange with an energy storage battery, the flow channel plate is provided with a heat exchange flow channel for the flow of refrigerant, and the flow channel plate is provided with a liquid inlet for the refrigerant to enter and a liquid outlet for the refrigerant to flow out, and the heat exchange flow channel comprises:

[0006] a first flow channel, both ends of which are connected with the liquid inlet and the liquid outlet respectively;

[0007] a second flow channel, both ends of which are connected with the liquid inlet and the liquid outlet respectively;

[0008] wherein the length of the first flow channel is greater than the length of the second flow channel, and the number of bending sections of the second flow channel is greater than the number of bending sections of the first flow channel.

[0009] Optionally,

[0010] the heat exchange flow channel is a through hole opened in the flow channel plate, and the heat exchange plate further comprises a temperature equalizing plate arranged between the flow channel plate and the energy storage battery; or,

[0011] the heat exchange flow channel is a groove opened on the surface of the flow channel plate, and the heat exchange plate further comprises a temperature equalizing plate arranged between the flow channel plate and the energy storage battery, and the temperature equalizing plate blocks the opening of the groove.

[0012] Optionally, the flow channel plate and the energy storage battery are respectively connected to both sides of the thickness direction of the temperature equalizing plate, and the temperature equalizing plate is provided with a thickened layer.

[0013] Optionally, the heat exchange flow channel comprises a plurality of pipe sections, wherein:

[0014] The spacing between adjacent pipe sections is the same in the length direction of the flow channel plate; and / or,

[0015] The spacing between adjacent pipe sections is the same in the width direction of the flow channel plate.

[0016] Optionally, at least one of the first flow channel and the second flow channel is provided with a plurality of.

[0017] Optionally, the first flow channel and the second flow channel are each provided with a plurality of, and the number of the first flow channel and the second flow channel is equal.

[0018] Optionally, the flow channel plate further comprises:

[0019] The first flow channel comprises a first region and a second region located at both ends of the width direction of the flow channel plate, and a third region located at one end of the length direction of the flow channel plate, and the first region and the second region are connected through the third region;

[0020] The second flow channel is located between the first region and the second region, and comprises a fourth region and a fifth region arranged in parallel with the length direction of the flow channel plate, and a sixth region arranged in parallel with the width direction of the flow channel plate, and the fourth region and the fifth region are connected through the sixth region.

[0021] Optionally,

[0022] The first flow channel comprises a first region and a second region located at both ends of the width direction of the flow channel plate, and a third region located at one end of the length direction of the flow channel plate, and the first region and the second region are connected through the third region;

[0023] The second flow channel is located between the first region and the second region, and comprises a fourth region and a fifth region arranged in parallel with the length direction of the flow channel plate, and a sixth region arranged in parallel with the width direction of the flow channel plate, and the fourth region and the fifth region are connected through the sixth region.

[0024] Optionally, the inlet and the outlet are located on the same side of the flow channel plate.

[0025] An energy storage container, comprising a box body and an energy storage battery located in the box body and the heat exchange plate according to any one of the preceding claims, wherein:

[0026] The box body comprises a shell and a door body movably connected with the shell, and the inlet and the outlet are located on the side of the flow channel plate close to the door body.

[0027] The heat exchange plate provided by the application comprises a flow channel plate in heat conduction connection with the energy storage battery, the flow channel plate is provided with a heat exchange flow channel for refrigerant flow, the heat exchange flow channel comprises a first flow channel and a second flow channel, and the length of the first flow channel is greater than the length of the second flow channel, and the number of bending sections of the second flow channel is greater than the number of bending sections of the first flow channel. By setting in this way, since the length of the first flow channel is greater than the length of the second flow channel, if the arrangement modes of the first flow channel and the second flow channel are the same, the flow resistance of the refrigerant in the first flow channel will be greater than the flow resistance of the refrigerant in the second flow channel due to the increase of the flow channel length, which leads to that the heat exchange efficiency of the first flow channel and the corresponding region of the energy storage battery is lower than the heat exchange efficiency of the second flow channel and the corresponding region of the energy storage battery. In the application, the number of bending sections of the second flow channel is ensured to be greater than the number of bending sections of the first flow channel, the number of bending sections is increased to increase the flow resistance of the second flow channel, so as to reduce the difference between the flow resistances of the first flow channel and the second flow channel, and further reduce the difference between the heat exchange efficiencies of the first flow channel and the second flow channel and the corresponding regions of the energy storage battery, thereby reducing or removing the temperature difference of the battery cells in different regions of the energy storage battery, improving the heat exchange uniformity of the energy storage battery, and reducing the temperature difference of the battery cells in different regions of the energy storage battery. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the provided drawings.

[0029] Figure 1 The structural schematic diagram of the heat exchange plate and the energy storage battery provided by the present embodiment is shown in the figure.

[0030] Figure 2 The top view of the heat exchange plate and the energy storage battery is shown in the figure.

[0031] Figure 3 The A-A section view of the figure is shown in the figure. Figure 2 The A-A section view of the figure is shown in the figure.

[0032] Figure 4 The structural schematic diagram of the flow channel plate is shown in the figure. Figure 1

[0033] Figure 5 The structural schematic diagram of the flow channel plate is shown in the figure. Figure 2

[0034] Figure 6 The side view of the heat exchange plate is shown in the figure.

[0035] In the figure: Figures 1-6

[0036] ​​​1 - flow channel plate, 2 - uniform temperature plate, 3 - first sub-flow channel, 4 - second sub-flow channel, 5 - energy storage battery;

[0037] 11 - heat exchange flow channel, 12 - liquid inlet, 13 - liquid outlet, 21 - thickened layer;

[0038] 111 - first flow channel, 112 - second flow channel, 113 - first area, 114 - second area, 115 - third area, 116 - fourth area, 117 - fifth area, 118 - sixth area, 119 - bending section. DETAILED DESCRIPTION

[0039] The application provides a heat exchange plate. The application also provides an energy storage container comprising the heat exchange plate.

[0040] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0041] As shown in the drawings, Figures 1 to 6 The application provides a heat exchange plate, which can be installed in an energy storage container, and is used for heat exchange with an energy storage battery 5 to keep the energy storage battery 5 at an appropriate temperature. It should be noted that the energy storage battery 5 is not limited herein, and can be an energy storage battery 5 in all energy fields such as photovoltaic power generation, tidal power generation, thermal power generation, nuclear power generation, geothermal power generation, hydroelectric power generation, biomass power generation, and wind power generation. The heat exchange plate mainly comprises a flow channel plate 1 used for heat exchange with the energy storage battery 5. The flow channel plate 1 is provided with a heat exchange flow channel 11 for flowing of refrigerant. Here, the heat exchange flow channel 11 is used for heat exchange with the energy storage battery 5 by flowing of refrigerant in the flow channel plate 1, so that the energy storage battery 5 is kept at an appropriate temperature. In addition, the flow channel plate 1 is provided with a liquid inlet 12 and a liquid outlet 13 for entering and flowing of refrigerant. The liquid inlet 12 is used for guiding refrigerant in a heat management system to the heat exchange flow channel 11, and the liquid outlet 13 is used for guiding refrigerant in the heat exchange flow channel 11, which has completed heat exchange with the energy storage battery 5, to the heat management system. Exemplarily, the heat exchange flow channel 11 can be a punch-formed flow channel, and the heat exchange flow channel 11 can also be a heat exchange pipeline arranged on the upper part or inside of the flow channel plate 1.

[0042] Specifically, the heat exchange flow channel 11 includes a first flow channel 111 and a second flow channel 112, the two ends of the first flow channel 111 are connected with the liquid inlet 12 and the liquid outlet 13 respectively; the two ends of the second flow channel 112 are connected with the liquid inlet 12 and the liquid outlet 13 respectively; that is, a plurality of flow channels connecting the liquid inlet 12 and the liquid outlet 13 are arranged, so that when the refrigerant flows through the flow channel to different parts of the flow channel plate 1, the plurality of flow channels can more efficiently guide the refrigerant to each area of the cold plate, thereby improving the heat exchange efficiency of the flow channel plate 1 on the energy storage battery 5.

[0043] Wherein, the length of the first flow channel 111 is greater than the length of the second flow channel 112, that is, the total length of the first flow channel 111 is greater than the total length of the second flow channel 112, that is, the path length of the refrigerant flowing from the liquid inlet 12 to the liquid outlet 13 through the first flow channel 111 is greater than the path length of the refrigerant flowing from the liquid inlet 12 to the liquid outlet 13 through the second flow channel 112; on this basis, if the number of bending sections 119 of the first flow channel 111 and the second flow channel 112 is the same, the flow resistance of the refrigerant in the first flow channel 111 is greater than the flow resistance of the refrigerant in the second flow channel 112, which results in that the heat exchange efficiency of the refrigerant flowing through the first flow channel 111 with the corresponding area of the energy storage battery 5 is less than the heat exchange efficiency of the refrigerant flowing through the second flow channel 112 with the corresponding area of the energy storage battery 5. In order to reduce or even eliminate the difference in flow resistance, it is ensured that the number of bending sections 119 of the second flow channel 112 is greater than the number of bending sections 119 of the first flow channel 111, that is, the number of bending of the second flow channel 112 is greater than the number of bending of the first flow channel 111. By increasing the number of bending sections 119 to reduce or even eliminate the difference in flow resistance caused by the length difference between the first flow channel 111 and the second flow channel 112, the flow rate of the refrigerant in the first flow channel 111 and the flow rate of the refrigerant in the second flow channel 112 are approximately the same, so as to improve the uniformity of the heat exchange of the refrigerant flowing in the first flow channel 111 and the second flow channel 112 on the energy storage battery 5.

[0044] It should be noted that the heat conduction connection between the flow channel plate 1 and the energy storage battery 5 can be realized by directly abutting the flow channel plate 1 with the energy storage battery 5, or a heat conduction member can be arranged between the flow guide plate and the energy storage battery 5.

[0045] The heat exchange plate has the advantages that the length of the first flow channel 111 is greater than the length of the second flow channel 112, and the number of the bending sections 119 of the second flow channel 112 is greater than the number of the bending sections 119 of the first flow channel 111. The number of the bending sections 119 is increased to increase the flow resistance of the second flow channel 112, so as to reduce the difference between the flow resistances of the first flow channel 111 and the second flow channel 112, and further reduce or eliminate the temperature difference of the battery cells in different regions of the energy storage battery 5, so as to improve the heat exchange uniformity of the energy storage battery 5 and reduce the temperature difference of the battery cells in different regions of the energy storage battery 5.

[0046] In some embodiments, an optional implementation is provided, the heat exchange flow channel 11 is a through hole formed in the flow channel plate 1, that is, the inside of the flow channel plate 1 is formed with the heat exchange flow channel 11 connected with the liquid inlet 12 and the liquid outlet 13 respectively, and the flow of the refrigerant can be realized only by the flow channel plate 1. The heat exchange plate further comprises the temperature equalizing plate 2 arranged between the flow channel plate 1 and the energy storage battery 5, and the temperature equalizing plate 2 can have a heat conduction effect to realize heat exchange between the flow channel plate 1 and the energy storage battery 5. In addition, since the refrigerant only flows in the heat exchange flow channel 11, the temperature at the interval position between the heat exchange flow channels 11 will inevitably have a temperature difference with the temperature of the refrigerant in the heat exchange flow channel 11. By arranging the temperature equalizing plate 2, the temperature can be equalized during the realization of the flow channel plate 1 and the energy storage battery 5, so as to reduce or even eliminate the above-mentioned temperature difference, so as to realize the heat exchange of each region of the energy storage battery 5 with approximately uniform temperature, and improve the uniformity of heat exchange.

[0047] In some embodiments, another optional implementation is provided, the heat exchange flow channel 11 is a groove formed on the surface of the flow channel plate 1, and the heat exchange plate further comprises the temperature equalizing plate 2 arranged between the flow channel plate 1 and the energy storage battery 5, and the temperature equalizing plate 2 seals the opening of the groove, that is, in this arrangement, the heat exchange flow channel 11 is a groove formed on the flow channel plate 1 by stamping, and the groove is covered by the temperature equalizing plate 2, so that the flow channel plate 1 and the temperature equalizing plate 2 jointly enclose the heat exchange flow channel 11. In this implementation, the temperature equalizing plate 2 also has the effects of heat conduction and temperature equalization.

[0048] In some embodiments, the flow channel plate 1 and the energy storage battery 5 are respectively connected to two sides of the temperature equalizing plate 2 in the thickness direction, and the temperature equalizing plate 2 is provided with the thickened layer 21. Here, by arranging the thickened layer 21, the temperature equalization performance of the temperature equalizing plate 2 is further improved, and the uniformity of the local heat exchange of the flow channel plate 1 and the energy storage battery 5 is further realized, so as to improve the heat exchange efficiency of the energy storage battery 5 and ensure that the temperature difference of each local part of the energy storage battery 5 is not large.

[0049] In some embodiments, the heat exchange flow channel 11 comprises a plurality of pipe segments, wherein the spacing between adjacent pipe segments is the same in the length direction of the flow channel plate 1; and / or the spacing between adjacent pipe segments is the same in the width direction of the flow channel plate 1, that is, the pipe segments are uniformly arranged in the length direction and / or the width direction of the flow channel plate 1. In this way, the heat exchange flow channel 11 can be uniformly arranged in the flow channel plate 1, so that the temperature of each local area of the heat exchange plate is more uniform, and on this basis, in combination with the arrangement of the uniform temperature plate 2, the heat exchange of each local area of the heat exchange plate and the energy storage battery 5 is more uniform, and the heat exchange of different cells of the energy storage battery 5 is more uniform.

[0050] It should be noted that the length direction of the flow channel plate 1 is the direction indicated by the bidirectional arrow Y, and the width direction of the flow channel plate 1 is the direction indicated by the bidirectional arrow X. Figure 4 Figure 4 It should be noted that the length direction of the flow channel plate 1 is the direction indicated by the bidirectional arrow Y, and the width direction of the flow channel plate 1 is the direction indicated by the bidirectional arrow X.

[0051] On the basis of the above-mentioned embodiments, further, the spacing between adjacent pipe segments in the length direction of the flow channel plate 1 is Y1, and the spacing between adjacent pipe segments in the width direction of the flow channel plate 1 is X1, and it is ensured that X1 and Y1 are equal. In this way, the uniformity of the temperature of each local area of the flow channel plate 1 can be further improved, and in combination with the temperature uniformization of the flow channel plate 1 by the uniform temperature plate 2, the heat exchange of each local area of the heat exchange plate and the energy storage battery 5 is further uniform, and the heat exchange of different cells of the energy storage battery 5 is further uniform.

[0052] In some embodiments, at least one of the first flow channel 111 and the second flow channel 112 is provided with a plurality of. In the present example, an optional implementation is provided, in which the first flow channel 111 is provided with one strip and the second flow channel 112 is provided with a plurality of strips; in the present embodiment, another optional implementation is provided, in which the second flow channel 112 is provided with one strip and the first flow channel 111 is provided with a plurality of strips; in the present embodiment, still another optional implementation is provided, in which the first flow channel 111 and the second flow channel 112 are both provided with a plurality of strips. Here, by increasing the number of first flow channels 111 and second flow channels 112, the length of a single flow channel can be reduced, the flow resistance of the refrigerant in the flow channel can be reduced, the flow rate of the refrigerant can be improved, and the heat exchange efficiency of the flow channel plate 1 and the energy storage battery 5 can be improved.

[0053] In some embodiments, the first flow channel 111 and the second flow channel 112 are both provided with a plurality of, and the number of the first flow channel 111 and the second flow channel 112 is equal, that is, the number of the longer first flow channel 111 and the number of the shorter second flow channel 112 are the same. In this way, the arrangement of the first flow channel 111 and the second flow channel 112 is facilitated, so that the first flow channel 111 and the second flow channel 112 are arranged more uniformly in the flow channel plate 1, and the uniformity of the heat exchange between the flow channel plate 1 and the energy storage battery 5 is improved.​

[0054] In some embodiments, the flow channel plate 1 further comprises a first sub-flow passage 3 and a second sub-flow passage 4, wherein the first sub-flow passage 3 comprises a first interface connected with the liquid inlet 12, and a plurality of first sub-interfaces respectively connected with the liquid inlet ends of the first flow channels 111 and the liquid inlet ends of the second flow channels 112; the second sub-flow passage 4 comprises a second interface connected with the liquid outlet 13, and a plurality of second sub-interfaces respectively connected with the liquid outlet ends of the first flow channels 111 and the liquid outlet ends of the second flow channels 112. Here, by setting the first sub-flow passage 3 and the second sub-flow passage 4, the sub-flow of the refrigerant can be quickly and efficiently realized, that is, only one liquid inlet 12 and one liquid outlet 13 are set to realize the uniform flow of the refrigerant in the flow channel plate 1, which can make the layout of the flow channel plate 1 more compact under the premise of ensuring the uniformity of the flow channel arrangement of the flow channel plate 1, and can improve the convenience of connecting the heat management system with the liquid inlet 12 and the liquid outlet 13 of the flow channel plate 1 through the pipeline, and improve the installation efficiency. Moreover, reducing the number of liquid inlets 12 and liquid outlets 13 can reduce the number of openings of the flow channel plate 1, reduce the processing difficulty, and can reduce the number of connection positions of the heat management system on the unit side and the flow channel plate 1, thereby reducing the risk of refrigerant leakage of the flow channel plate 1.

[0055] In some embodiments, the first flow channel 111 comprises a first region 113 and a second region 114 located at both ends of the width direction of the flow channel plate 1, and a third region 115 located at one end of the length direction of the flow channel plate 1, and the first region 113 and the second region 114 are connected through the third region 115; the second flow channel 112 is located between the first region 113 and the second region 114, and comprises a fourth region 116 and a fifth region 117 arranged in parallel with the length direction of the flow channel plate 1, and a sixth region 118 arranged in parallel with the width direction of the flow channel plate 1, and the fourth region 116 and the fifth region 117 are connected through the sixth region 118. In this way, the layout of the first flow channel 111 and the second flow channel 112 in the flow channel plate 1 is more uniform, and the number of lifting and bending of the first flow channel 111 and the second flow channel 112 is reduced under the premise that the flow resistance of the first flow channel 111 and the second flow channel 112 is approximately the same, so that the layout of the first flow channel 111 and the second flow channel 112 in the flow channel plate 1 is more reasonable, thereby improving the heat exchange efficiency of the flow channel plate 1 and the energy storage battery 5.

[0056] In some embodiments, the liquid inlet 12 and the liquid outlet 13 are located on the same side of the flow channel plate 1. In this way, the installation of the direct cooling unit of the heat management system through the pipeline and the liquid inlet 12 and the liquid outlet 13 can be facilitated, and the inspection and maintenance of the liquid inlet 12 and the liquid outlet 13 can be facilitated, thereby improving the convenience of installation and maintenance.

[0057] Of course, the liquid outlet 13 and the liquid outlet 13 can also be arranged on different sides of the flow channel plate 1, so that the first flow channel 111 and the second flow channel 112 can be arranged to realize heat exchange with the energy storage battery 5.

[0058] An energy storage container includes a box body and an energy storage battery 5 and the heat exchange plate of any one of the preceding items in the box body, wherein the box body includes a shell and a door body movably connected with the shell, and the liquid inlet 12 and the liquid outlet 13 are arranged on one side of the flow channel plate 1 close to the door body. Specifically, when the unit side of the heat management system and the heat exchange plate need to be connected together, the door body of the energy storage container is only opened, and the connection of the unit side of the heat management system and the heat exchange plate can be conveniently realized through the two connecting pipes. Correspondingly, when the connection between the unit side and the heat exchange plate needs to be released, the door body is opened, and the connecting pipe connected with the liquid inlet 12 and the liquid outlet 13 of the heat exchange plate is disassembled. In this way, the convenience of disassembling the unit side of the heat management system and the heat exchange plate can be improved, and the installation and disassembly efficiency can be improved.

[0059] In addition, the liquid inlet 12 and the liquid outlet 13 can also be arranged on other sides of the flow channel plate 1, so that the effect of guiding the refrigerant can also be realized.

[0060] It should be noted that since the energy storage container includes the heat exchange plate, the energy storage container has the beneficial effects of the heat exchange plate, which are described above and will not be repeated here.

[0061] The energy storage container with the above structure ensures that the length of the first flow channel 111 is greater than the length of the second flow channel 112, and the number of the bending sections 119 of the second flow channel 112 is greater than the number of the bending sections 119 of the first flow channel 111. By increasing the number of the bending sections 119, the flow resistance of the second flow channel 112 is increased, so as to reduce the difference between the flow resistances in the first flow channel 111 and the second flow channel 112, thereby reducing or removing the temperature difference between the cells in different regions of the energy storage battery 5, and improving the heat exchange effect of the heat exchange plate.

[0062] The block diagrams of the devices, apparatuses, equipment, systems involved in the present application are only illustrative examples and are not intended to require or imply that the connection, arrangement, configuration must be as shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, systems can be connected, arranged, configured in any manner. Words such as "include", "contain", "have" and the like are open-ended words that mean "including but not limited to", and can be used interchangeably. The words "or" and "and" used herein mean the word "and / or", and can be used interchangeably unless the context clearly indicates otherwise. The word "such as" used herein means the phrase "such as but not limited to", and can be used interchangeably.

[0063] It should also be noted that in the apparatus, devices and methods of the present application, the various components and steps are merely illustrative. Depending on the implementation, components and steps can be added or removed. Similarly, the ordering of the steps can be modified without departing from the scope of the present application.

[0064] The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other aspects without departing from the scope of the application. Thus, the present application is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0065] It should be understood that the adjectives "first", "second", "third", "fourth", "fifth" and "sixth" used in the embodiments description of the present application are only used for more clearly describing the technical solutions, and cannot be used to limit the protection scope of the present application.

[0066] The foregoing description has been set forth for the purpose of exemplification and description. It is not intended to be exhaustive or to limit the application to the precise form disclosed. Although a few embodiments have been discussed with some detail, additional modifications and forms will occur to persons skilled in the art. Therefore, the scope of the application is not to be limited to the specific forms discussed, but only by the definitions in the claims.

Claims

1. A heat exchange plate, characterized in that The heat exchange plate comprises a flow channel plate for heat exchange with an energy storage battery, the flow channel plate is provided with a heat exchange flow channel for refrigerant flow, and the flow channel plate is provided with an inlet for refrigerant and an outlet for refrigerant outflow, and the heat exchange flow channel comprises: a first flow channel connected with the inlet and the outlet respectively at two ends; a second flow channel connected with the inlet and the outlet respectively at two ends; wherein the length of the first flow channel is greater than the length of the second flow channel, and the number of bending sections of the second flow channel is greater than the number of bending sections of the first flow channel.

2. The heat exchange plate according to claim 1, wherein the heat exchange flow channel is a through hole opened in the flow channel plate, and the heat exchange plate further comprises a uniform temperature plate arranged between the flow channel plate and the energy storage battery; or the heat exchange flow channel is a groove opened on the surface of the flow channel plate, and the heat exchange plate further comprises a uniform temperature plate arranged between the flow channel plate and the energy storage battery, and the uniform temperature plate seals the opening of the groove. The flow channel plate and the energy storage battery are respectively connected to two sides of the uniform temperature plate in the thickness direction, and the uniform temperature plate is provided with a thickened layer. The heat exchange flow channel comprises a plurality of pipe sections, wherein:

3. The heat exchange plate according to claim 2, characterized in that in the length direction of the flow channel plate, the spacing between adjacent pipe sections is the same; and / or 4. The heat exchange plate according to claim 1, characterized in that in the width direction of the flow channel plate, the spacing between adjacent pipe sections is the same. At least one of the first flow channel and the second flow channel is provided with a plurality of. Both the first flow channel and the second flow channel are provided with a plurality of, and the number of the first flow channel and the second flow channel is equal.

5. The heat exchange plate according to claim 1, characterized in that Further comprising:

6. The heat exchange plate according to claim 5, characterized in that a first shunt channel comprising a first interface connected with the inlet, and a plurality of first sub-interfaces connected with the inlet end of the first flow channel and the inlet end of the second flow channel respectively; 7. The heat exchanger plate according to claim 1, 5 or 6, characterised in that a second shunt channel comprising a second interface connected with the outlet, and a plurality of second sub-interfaces connected with the outlet end of the first flow channel and the outlet end of the second flow channel respectively.

8. The heat exchange plate according to claim 1, wherein the first flow channel comprises a first region and a second region located at both ends of the width direction of the flow channel plate, and a third region located at one end of the length direction of the flow channel plate, and the first region and the second region are connected through the third region; the second flow channel is located between the first region and the second region, and comprises a fourth region and a fifth region arranged in parallel with the length direction of the flow channel plate, and a sixth region arranged in parallel with the width direction of the flow channel plate, and the fourth region and the fifth region are connected through the sixth region. The inlet and the outlet are located on the same side of the flow channel plate. The heat exchange plate comprises a flow channel plate for heat exchange with an energy storage battery, the flow channel plate is provided with a heat exchange flow channel for refrigerant flow, and the flow channel plate is provided with an inlet for refrigerant and an outlet for refrigerant outflow, and the heat exchange flow channel comprises: a first flow channel connected with the inlet and the outlet respectively at two ends; 9. The heat exchange plate according to claim 1, characterized in that a second flow channel connected with the inlet and the outlet respectively at two ends; 10. An energy storage container, characterized by, wherein the length of the first flow channel is greater than the length of the second flow channel, and the number of bending sections of the second flow channel is greater than the number of bending sections of the first flow channel.

2. The heat exchange plate according to claim 1, wherein the heat exchange flow channel is a through hole opened in the flow channel plate, and the heat exchange plate further comprises a uniform temperature plate arranged between the flow channel plate and the energy storage battery; or the heat exchange flow channel is a groove opened on the surface of the flow channel plate, and the heat exchange plate further comprises a uniform temperature plate arranged between the flow channel plate and the energy storage battery, and the uniform temperature plate seals the opening of the groove. The flow channel plate and the energy storage battery are respectively connected to two sides of the uniform temperature plate in the thickness direction, and the uniform temperature plate is provided with a thickened layer. The heat exchange flow channel comprises a plurality of pipe sections, wherein: in the length direction of the flow channel plate, the spacing between adjacent pipe sections is the same; and / or in the width direction of the flow channel plate, the spacing between adjacent pipe sections is the same. At least one of the first flow channel and the second flow channel is provided with a plurality of. Both the first flow channel and the second flow channel are provided with a plurality of, and the number of the first flow channel and the second flow channel is equal. Further comprising: a first shunt channel comprising a first interface connected with the inlet, and a plurality of first sub-interfaces connected with the inlet end of the first flow channel and the inlet end of the second flow channel respectively; a second shunt channel comprising a second interface connected with the outlet, and a plurality of second sub-interfaces connected with the outlet end of the first flow channel and the outlet end of the second flow channel respectively.

8. The heat exchange plate according to claim 1, wherein the first flow channel comprises a first region and a second region located at both ends of the width direction of the flow channel plate, and a third region located at one end of the length direction of the flow channel plate, and the first region and the second region are connected through the third region; the second flow channel is located between the first region and the second region, and comprises a fourth region and a fifth region arranged in parallel with the length direction of the flow channel plate, and a sixth region arranged in parallel with the width direction of the flow channel plate, and the fourth region and the fifth region are connected through the sixth region. The inlet and the outlet are located on the same side of the flow channel plate. The heat exchange plate comprises a flow channel plate for heat exchange with an energy storage battery, the flow channel plate is provided with a heat exchange flow channel for refrigerant flow, and the flow channel plate is provided with an inlet for refrigerant and an outlet for refrigerant outflow, and the heat exchange flow channel comprises: a first flow channel connected with the inlet and the outlet respectively at two ends; a second flow channel connected with the inlet and the outlet respectively at two ends; wherein the length of the first flow channel is greater than the length of the second flow channel, and the number of bending sections of the second flow channel is greater than the number of bending sections of the first flow channel.

2. The heat exchange plate according to claim 1, wherein the heat exchange flow channel is a through hole opened in the flow channel plate, and the heat exchange plate further comprises a uniform temperature plate arranged between the flow channel plate and the energy storage battery; or the heat exchange flow channel is a groove opened on the surface of the flow channel plate, and the heat exchange plate further comprises a uniform temperature plate arranged between the flow channel plate and the energy storage battery, and the uniform temperature plate seals the opening of the groove. The flow channel plate and the energy storage battery are respectively connected to two sides of the uniform temperature plate in the thickness direction, and the uniform temperature plate is provided with a thickened layer.

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