Heat exchange plate and energy storage container

Abstract

The application provides a heat exchange plate and an energy storage container. The heat exchange plate is used for heat exchange with a to-be-heated part. The heat exchange plate is provided with a first flow channel and a second flow channel for cooling liquid flow. The flow directions of the cooling liquid in the first flow channel and the second flow channel are opposite. The upstream flow channel of the first flow channel and the downstream flow channel of the second flow channel are located in a first heat exchange area of the heat exchange plate. The upstream flow channel of the second flow channel and the downstream flow channel of the first flow channel are located in a second heat exchange area of the heat exchange plate. The first flow channel and the second flow channel are used for heat exchange with the to-be-heated part together. In this way, when the first flow channel and the second flow channel of the heat exchange plate heat exchange with the to-be-heated part together, the upstream flow channel of the second flow channel can compensate for the heat exchange effect of the downstream flow channel of the first flow channel on the to-be-heated part in the region, and the upstream flow channel of the first flow channel can compensate for the heat exchange effect of the downstream flow channel of the second flow channel on the to-be-heated part in the region, so that the problem of different heat exchange effects of the heat exchange plate on different regions of the to-be-heated part can be alleviated or even avoided.

Description

Technical Field

[0001] This application relates to the field of energy storage container technology, specifically to a heat exchange plate and an energy storage container. Background Technology

[0002] In the field of heat exchange technology, heat exchange plates are typically used to exchange heat with components. When the component is an energy storage battery, a heat exchange plate is needed to heat the battery to keep it within a suitable temperature range. In developing this application, the inventors discovered that the prior art has at least the following technical problems: When a heat exchange plate cools an energy storage battery, the coolant flowing into the plate from the inlet continuously cools the battery as it flows within the plate. However, the coolant temperature gradually increases during this flow, reducing its cooling effect on the battery. This results in uneven cooling of different areas of the battery by the heat exchange plate. Furthermore, uneven cooling causes some cells to experience capacity reduction or reach their lifespan earlier than the rest of the cells in the battery pack. Once these cells reach their lifespan, the entire battery pack becomes unusable. Utility Model Content

[0003] In view of this, this application provides a heat exchange plate that effectively improves the cooling effect of the heat exchange plate on different areas of the heat exchange component, and avoids additional losses in the lifespan and capacity of the battery pack due to poor local heat exchange. This application also provides an energy storage container including the above-mentioned heat exchange plate.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] A heat exchange plate is provided for exchanging heat with a component to be heat-exchanged. The heat exchange plate is provided with a first flow channel and a second flow channel for coolant to flow. The flow directions of the coolant in the first flow channel and the second flow channel are opposite. The upstream flow channel of the first flow channel and the downstream flow channel of the second flow channel are both located in a first heat exchange area of ​​the heat exchange plate, and the upstream flow channel of the second flow channel and the downstream flow channel of the first flow channel are both located in a second heat exchange area of ​​the heat exchange plate. The first flow channel and the second flow channel are used together for exchanging heat with the component to be heat-exchanged.

[0006] Optionally, the first flow channel and the second flow channel are in heat exchange contact.

[0007] Optionally, the first flow channel and the second flow channel have the same length and the same extension shape.

[0008] Optionally, the first flow channel and the second flow channel share a common flow channel outlet, and the heat exchange plate further includes a first diverter plate with a liquid inlet. The first diverter plate is connected to the flow channel inlet of the first flow channel and the flow channel inlet of the second flow channel, respectively, and the first diverter plate is in partial heat exchange contact with a portion of the first flow channel and / or a portion of the second flow channel.

[0009] Optionally, the first flow channel and the second flow channel share a common flow channel inlet, and the heat exchange plate further includes a second flow divider plate with a liquid outlet, the second flow divider plate being connected to the flow channel outlet of the first flow channel and the flow channel outlet of the second flow channel respectively.

[0010] Optionally, the two ends of the first flow channel are a first liquid inlet and a first liquid outlet, and the two ends of the second flow channel are a second liquid inlet and a second liquid outlet, respectively; and the first liquid inlet and the second liquid inlet are independently configured, as are the first liquid outlet and the second liquid outlet.

[0011] An energy storage container includes a heat exchange component to be exchanged and a heat exchange plate as described in any of the above.

[0012] Optionally, the heat exchange component is an energy storage battery, which includes multiple cell groups, each cell group including multiple stacked cells, each cell group having partial heat exchange contact with the first flow channel of the heat exchange plate and partial heat exchange contact with the second flow channel of the heat exchange plate.

[0013] Optionally, the heat exchange plate is disposed at the bottom and / or side of the battery cell assembly.

[0014] Optionally, multiple heat exchange components are provided, and the heat exchange plate is configured one-to-one with each heat exchange component. The energy storage container includes:

[0015] The primary piping is used to guide the coolant flow.

[0016] There are multiple secondary pipelines, all of which are connected to the primary pipeline;

[0017] The system has multiple tertiary pipelines, and each secondary pipeline is connected to multiple tertiary pipelines. One end of each tertiary pipeline is connected to a secondary pipeline, and the other end of each tertiary pipeline is connected to the first flow channel and / or the second flow channel.

[0018] The heat exchange plate provided in this application features a first flow channel and a second flow channel for coolant flow, ensuring that the coolant flows in opposite directions within the first and second flow channels. The upstream and downstream flow channels of the first and second flow channels are both located in the first heat exchange zone of the heat exchange plate, and the upstream and downstream flow channels of the second and first flow channels are both located in the second heat exchange zone. Taking an energy storage battery as an example, with this configuration, when the heat exchange plate is used to cool the energy storage battery, the coolant continuously cools the battery as it flows in the first flow channel, causing its temperature to gradually rise. Therefore, the coolant flowing in the first flow channel has a good heat exchange effect on the energy storage battery exchanging heat with the upstream flow channel, but a poor heat exchange effect on the energy storage battery exchanging heat with the downstream flow channel. Conversely, when the coolant flows in the second flow channel, it continuously cools the battery, causing its temperature to gradually rise. The coolant flowing in the first flow channel has a good heat exchange effect on the energy storage battery that exchanges heat with the upstream flow channel of the second flow channel, while the coolant flowing in the second flow channel has a poor heat exchange effect on the energy storage battery that exchanges heat with the downstream flow channel of the second flow channel. Furthermore, it is ensured that the upstream flow channel of the first flow channel and the downstream flow channel of the second flow channel are both located in the first heat exchange zone of the heat exchange plate, that is, the upstream flow channel of the first flow channel and the downstream flow channel of the second flow channel jointly cool the energy storage battery in the same area. And the upstream flow channel of the second flow channel and the downstream flow channel of the first flow channel are both located in the second heat exchange zone of the heat exchange plate, that is, the upstream flow channel of the second flow channel and the downstream flow channel of the first flow channel jointly cool the energy storage battery in the same area. In this way, when the first and second flow channels of the heat exchange plate work together to exchange heat with the energy storage battery, the upstream flow channel of the second flow channel can compensate for the heat exchange effect of the downstream flow channel of the first flow channel on that area of ​​the energy storage battery, and the upstream flow channel of the first flow channel can compensate for the heat exchange effect of the downstream flow channel of the second flow channel on that area of ​​the energy storage battery. This can alleviate or even avoid the problem of different heat exchange effects of the heat exchange plate on different areas of the energy storage battery. Furthermore, by making the heat exchange effect of the heat exchange plate on different areas of the energy storage battery more consistent, it can avoid the premature reduction of the effective capacity of the cell group or even the overall unusability due to the premature aging of some cells. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the heat exchange plate provided in this embodiment. Figure 1 ;

[0021] Figure 2 Schematic diagram of the heat exchange plate Figure 2 ;

[0022] Figure 3 Schematic diagram of the structure of an energy storage container Figure 1 ;

[0023] Figure 4 Schematic diagram of the structure of an energy storage container Figure 2 ;

[0024] Figure 5 This is a schematic diagram of the heat exchange plate and the battery cell assembly.

[0025] exist Figures 1 to 5 middle:

[0026] 1-Heat exchange plate, 2-Battery cell assembly, 3-Primary piping, 4-Secondary piping, 5-Tertiary piping;

[0027] 11-First flow channel, 12-Second flow channel, 13-First heat exchange zone, 14-Second heat exchange zone, 15-Flow channel inlet, 16-Flow channel outlet, 17-First distributor plate, 18-Liquid inlet;

[0028] 111 - First liquid inlet, 112 - First liquid outlet, 121 - Second liquid inlet, 122 - Second liquid outlet. Detailed Implementation

[0029] This application provides a heat exchange plate. This application also provides an energy storage container including the aforementioned heat exchange plate.

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] like Figures 1 to 5As shown in the figure, this application embodiment provides a heat exchange plate 1, which can be installed in an energy storage container. The heat exchange plate 1 is used to exchange heat with the component to be heat-exchanged, so that the component to be heat-exchanged is at a suitable temperature. It should be noted that the component to be heat-exchanged is not limited here. The component to be heat-exchanged can be an energy storage battery, which can be an energy storage battery in all fields of electrical energy, such as photovoltaic power generation, tidal power generation, thermal power generation, nuclear power generation, geothermal power generation, hydropower generation, biomass power generation, or wind power generation. The heat exchange plate 1 is used to exchange heat with the component to be heat-exchanged. The heat exchange plate 1 is mainly provided with a first flow channel 11 and a second flow channel 12 for the flow of coolant. The flow direction of the coolant in the first flow channel 11 and the second flow channel 12 is opposite. That is, the flow direction of the coolant in the adjacent parts of the first flow channel 11 and the second flow channel 12 is opposite. The upstream flow channel of the first flow channel 11 and the downstream flow channel of the second flow channel 12 are both located in the first heat exchange zone 13 of the heat exchange plate 1. That is, the upstream flow channel of the first flow channel 11 and the downstream flow channel of the second flow channel 12 are arranged close to each other, and the upstream flow channel of the first flow channel 11 and the downstream flow channel of the second flow channel 12 jointly cool the heat exchange component in the same area. Furthermore, the upstream flow channel of the second flow channel 12 and the downstream flow channel of the first flow channel 11 are both located in the second heat exchange zone 14 of the heat exchange plate 1. That is, the upstream flow channel of the second flow channel 12 and the downstream flow channel of the first flow channel 11 are arranged close to each other, and the upstream flow channel of the second flow channel 12 and the downstream flow channel of the first flow channel 11 jointly cool the heat exchange component in the same area. Thus, the first flow channel 11 and the second flow channel 12 are used together to exchange heat with the heat exchange component to achieve cooling or heating of the heat exchange component.

[0032] It should be noted that the upstream flow channel of the first flow channel 11 refers to the flow channel near the flow channel inlet 15 region of the first flow channel 11, and the downstream flow channel of the first flow channel 11 refers to the flow channel near the flow channel outlet 16 region of the first flow channel 11; correspondingly, the upstream flow channel of the second flow channel 12 refers to the flow channel near the flow channel inlet 15 region of the second flow channel 12, and the downstream flow channel of the second flow channel 12 refers to the flow channel near the flow channel outlet 16 region of the second flow channel 12.

[0033] It should also be noted that, in the following embodiments of this application, the heat exchange component is an energy storage battery as an example.

[0034] Specifically, taking the cooling of the energy storage battery via heat exchanger 1 as an example, please refer to [link to relevant documentation]. Figure 1Here, A represents the upstream flow channel of the first flow channel 11, B represents the downstream flow channel of the first flow channel 11, C represents the upstream flow channel of the second flow channel 12, and D represents the downstream flow channel of the second flow channel 12. The first heat exchange zone 13 of the heat exchange plate 1 is used to cool the first region of the energy storage battery, and the second heat exchange zone 14 of the heat exchange plate 1 is used to cool the second region of the energy storage battery. Thus, when the heat exchange plate 1 is used to cool the energy storage battery, when the coolant flows in the first flow channel 11, the coolant in region A has a better cooling effect on the first region of the energy storage battery, while the coolant in region B has a poorer cooling effect on the second region of the energy storage battery. Similarly, when the coolant flows in the second flow channel 12, the coolant in region C has a better cooling effect on the second region of the energy storage battery, while the coolant in region D has a poorer cooling effect on the first region of the energy storage battery. With this configuration, region A of the first flow channel 11 can compensate for the cooling effect of region D of the second flow channel 12 on the first region of the energy storage battery; and region C of the second flow channel 12 can compensate for the cooling effect of region B of the first flow channel 11 on the second region of the energy storage battery; while the midstream flow channels of the first flow channel 11 and the second flow channel 12 are used to cool the third region of the energy storage battery, and the midstream flow channels of the two channels have a similar cooling effect on the third region of the energy storage battery. In summary, the heat exchange plate 1 in this application can mitigate or even avoid the problem of different cooling effects of the heat exchange plate 1 on different regions of the energy storage battery, thereby improving the uniformity of the cooling effect on different regions of the energy storage battery. Of course, when the temperature of the energy storage battery itself is too low and it needs to be heated by the heat exchange plate 1, the solution is similar to the above-described cooling solution for the energy storage battery, and will not be described in detail here.

[0035] It should also be noted that, in Figure 1 Only one set of battery cell group 2 is shown in the diagram; the battery cell groups 2 in other locations on the heat exchange plate are hidden.

[0036] In the heat exchange plate 1 with the above structure, when the first flow channel 11 and the second flow channel 12 of the heat exchange plate 1 jointly exchange heat with the energy storage battery, the upstream flow channel of the second flow channel 12 can compensate for the heat exchange effect of the downstream flow channel of the first flow channel 11 on the energy storage battery in that area, and the upstream flow channel of the first flow channel 11 can compensate for the heat exchange effect of the downstream flow channel of the second flow channel 12 on the energy storage battery in that area. This can alleviate or even avoid the problem of different heat exchange effects of the heat exchange plate 1 on different areas of the energy storage battery; and make the heat exchange effect of the heat exchange plate 1 on different areas of the energy storage battery more consistent, which can avoid the premature reduction of the effective capacity of the cell group 2 or even the overall unusability due to the premature aging of some cells.

[0037] It should be noted that the following embodiments use the cooling of the energy storage battery by the heat exchange plate 1 as an example. The heating of the energy storage battery by the heat exchange plate 1 is similar to that of the cooling process, and will not be described again here.

[0038] In some embodiments, please refer to Figure 1 and Figure 2 The first flow channel 11 and the second flow channel 12 are in heat exchange contact. With this configuration, the coolant flowing through the upstream flow channel of the first flow channel 11, which has a lower temperature, exchanges heat with the coolant flowing through the downstream flow channel of the second flow channel 12, which has a higher temperature. This reduces the temperature of the coolant in the downstream flow channel of the second flow channel 12, thereby improving the cooling efficiency of the coolant in the second flow channel 12 for the energy storage battery. Furthermore, the coolant flowing through the upstream flow channel of the second flow channel 12, which has a lower temperature, exchanges heat with the coolant flowing through the downstream flow channel of the first flow channel 11, which has a higher temperature. This reduces the temperature of the coolant in the downstream flow channel of the first flow channel 11, thereby improving the cooling efficiency of the coolant in the first flow channel 11 for the energy storage battery.

[0039] In some embodiments, please refer to Figure 1 and Figure 2 The first flow channel 11 and the second flow channel 12 are of the same length. It should be noted that "the first flow channel 11 and the second flow channel 12 are of the same length" means that their lengths are approximately the same. This arrangement ensures that the resistance to coolant flow is approximately the same during the flow of coolant in the first and second flow channels 11, and that the temperature changes during heat exchange between the coolant flowing in the first flow channel 11 and the energy storage battery are approximately the same as those during the heat exchange between the coolant flowing in the second flow channel 12 and the energy storage battery. This improves the uniformity of heat exchange between the coolant in the first and second flow channels 11 and the energy storage battery, thereby increasing the heat exchange efficiency of the heat exchange plate 1 for the energy storage battery. Maintaining the same length for the first and second flow channels 11 ensures that the heat exchange area, flow velocity, and flow pattern between the two channels and the energy storage battery are nearly identical, guaranteeing the uniformity of heat exchange between the heat exchange plate 1 and the energy storage battery. Furthermore, by making the processing methods of the first flow channel 11 and the second flow channel 12 consistent with existing products, the convenience of processing the first flow channel 11 and the second flow channel 12 can be improved, making this solution highly feasible.

[0040] Furthermore, based on the above embodiments, the first flow channel 11 and the second flow channel 12 have the same extended shape. For example, both the first flow channel 11 and the second flow channel 12 are continuous bent flow channels including a flat area and a bent area. This configuration further ensures that the resistance to coolant flow in the first flow channel 11 and the second flow channel 12 is approximately the same, further guaranteeing that the temperature change during heat exchange between the coolant flowing in the first flow channel 11 and the energy storage battery is approximately the same as the temperature change during heat exchange between the coolant flowing in the second flow channel 12 and the energy storage battery. This further improves the uniformity of heat exchange between the coolant in the first flow channel 11 and the second flow channel 12 and different local areas of the energy storage battery, and further improves the heat exchange efficiency of the coolant.

[0041] In some embodiments, please refer to Figure 1 The first flow channel 11 and the second flow channel 12 share a common flow channel outlet 16, thereby reducing the number of flow channel outlets 16 in the heat exchange plate 1, improving the tightness of the heat exchange flow channel arrangement, and reducing the risk of leakage in the heat exchange plate 1. The heat exchange plate 1 also includes a first diverter plate 17 with a liquid inlet 18. The first diverter plate 17 is connected to the flow channel inlet 15 of the first flow channel 11 and the flow channel inlet 15 of the second flow channel 12, respectively. That is, a liquid inlet 18 is provided in the heat exchange plate 1, and the liquid inlet 18 guides the coolant to the flow channel inlet 15 of the first flow channel 11 and the flow channel inlet 15 of the second flow channel 12 through the first diverter plate 17. Since the heat exchange plate 1 in the prior art is usually only provided with one liquid inlet 18 and one liquid outlet, the configuration in this embodiment ensures that the heat exchange plate 1 in this embodiment is also provided with one liquid inlet 18 and one liquid outlet, so that the pipeline of the original energy storage container can still be used for the heat exchange plate 1 in this application, thereby enhancing the applicability of the heat exchange plate 1 in this application.

[0042] Furthermore, based on the above embodiments, please refer to [link / reference needed]. Figure 1 The first flow divider 17 makes partial heat exchange contact with the first flow channel 11 and / or the second flow channel 12. For example, this includes three scenarios: partial heat exchange contact between the first flow divider 17 and the first flow channel 11; partial heat exchange contact between the first flow divider 17 and the second flow channel 12; and partial heat exchange contact between the first flow divider 17 and both the first flow channel 11 and the second flow channel 12. With this configuration, since the coolant flowing within the first flow divider 17 is the initial coolant that has not yet exchanged heat with the energy storage battery, this configuration allows the coolant within the first flow divider 17 to exchange heat with the coolant in the first flow channel 11 and / or the second flow channel 12, reducing the temperature of the coolant in the first flow channel 11 and / or the second flow channel 12, thereby improving the heat exchange efficiency of the coolant in the first flow channel 11 and / or the second flow channel 12 with the energy storage battery.

[0043] In some embodiments, the first flow channel 11 and the second flow channel 12 share a flow channel inlet 15, thereby reducing the number of flow channel inlets 15 in the heat exchange plate 1, improving the compactness of the heat exchange flow channel arrangement, and reducing the risk of leakage in the heat exchange plate 1. The heat exchange plate 1 also includes a second diverter plate with a liquid outlet. The second diverter plate (not shown in the figure) is connected to the flow channel outlet 16 of the first flow channel 11 and the flow channel outlet 16 of the second flow channel 12, respectively. That is, a liquid outlet is provided in the heat exchange plate 1, and the liquid outlet discharges the coolant flowing out of the flow channel outlet 16 of the first flow channel 11 and the flow channel outlet 16 of the second flow channel 12 through the second diverter plate. Since the heat exchange plate 1 in the prior art usually only has one liquid inlet 18 and one liquid outlet, this arrangement in this embodiment ensures that the heat exchange plate 1 in this embodiment also has one liquid inlet 18 and one liquid outlet, so that the original pipeline of the energy storage container can still be used for the heat exchange plate 1 in this application, thereby enhancing the applicability of the heat exchange plate 1 in this application. It should be noted that the schematic diagram corresponding to this embodiment is not shown in the accompanying drawings of this application.

[0044] In some embodiments, please refer to Figure 2 The first flow channel 11 has a first inlet 111 and a first outlet 112 at its two ends, and the second flow channel 12 has a second inlet 121 and a second outlet 122 at its two ends. The first inlet 111 and the second inlet 121 are independently configured, as are the first outlet 112 and the second outlet 122. In other words, the inlet and outlet of the first flow channel 11 are controlled by a separate set of pipes, and the inlet and outlet of the second flow channel 12 are also controlled by a separate set of pipes, with each pipe controlled independently. With this configuration, when the heat exchange plate 1 is used to heat the energy storage battery, the coolant in both the first flow channel 11 and the second flow channel 12 is controlled independently. This allows for more precise control of the flow rate in both flow channels within the heat exchange plate 1, resulting in more uniform temperature distribution within the heat exchange plate 1. Consequently, the heat exchange efficiency range of the first flow channel 11 and the second flow channel 12 aligns with that of the energy storage battery, thereby improving the heat exchange efficiency of the heat exchange plate 1 for the energy storage battery.

[0045] For further information, please refer to [link / reference]. Figure 2To improve the heat exchange efficiency of the heat exchange plate 1 for the energy storage battery, firstly, coolant is injected into the first flow channel 11 through the first inlet 111, and coolant is injected into the second flow channel 12 through the second inlet 121. Then, the coolant in the first flow channel 11 flows through the upstream flow channel to cool region E of the energy storage battery, and the coolant in the second flow channel 12 flows through the downstream flow channel to cool region F of the energy storage battery. As can be seen from the above embodiment, the cooling effect of the first flow channel 11 on region E of the energy storage battery is better than the cooling effect of the second flow channel 12 on region F of the energy storage battery. When the coolant is injected according to the above... After the energy storage battery is cooled for a period of time by the flow of coolant in the first flow channel 11 and the second flow channel 12, the flow direction of the coolant in the first flow channel 11 and the second flow channel 12 is changed. That is, coolant is injected into the first flow channel 11 through the first outlet 112 and into the second flow channel 12 through the second outlet 122. In this way, the original upstream flow channel of the first flow channel 11 becomes the downstream flow channel, and the original downstream flow channel of the second flow channel 12 becomes the upstream flow channel. Thus, the cooling effect of the second flow channel 12 on the F region of the energy storage battery is better than the cooling effect of the first flow channel 11 on the E region of the energy storage battery. By changing the flow direction of the coolant in the first flow channel 11 and the second flow channel 12 simultaneously, while still ensuring that the flow direction of the coolant in the first flow channel 11 and the second flow channel 12 is opposite, the cooling effect of the heat exchange plate 1 on the local area of ​​the same cell group 2 is more balanced, thereby improving the uniformity of the cooling effect of the heat exchange plate 1 on the various local areas of the energy storage battery. Of course, for the scheme in which the first flow channel 11 and the second flow channel 12 share a flow channel inlet or flow channel outlet, the uniformity of heat exchange between the heat exchange plate 1 and the energy storage battery can also be improved by changing the flow direction of the coolant in the first flow channel 11 and the second flow channel 12 at the same time.

[0046] This application also provides an energy storage container, which includes a heat exchange component and the aforementioned heat exchange plate 1. Since the energy storage container includes the aforementioned heat exchange plate 1, the beneficial effects of the heat exchange plate 1 on the energy storage container are described above and will not be repeated here.

[0047] In some embodiments, please refer to Figure 3 and Figure 4The heat exchange component is an energy storage battery, which includes multiple cell groups 2. Each cell group 2 includes multiple stacked cells, and the cell group 2 is the main heat-generating component of the energy storage battery. Each cell group 2 has partial heat exchange contact with the first flow channel 11 of the heat exchange plate 1 and partial heat exchange contact with the second flow channel 12 of the heat exchange plate 1. This arrangement allows the upstream flow channel of the first flow channel 11 and the downstream flow channel of the second flow channel 12 to simultaneously cool one cell group 2, and also allows the downstream flow channel of the first flow channel 11 and the upstream flow channel of the second flow channel 12 to simultaneously cool one cell group 2, and the midstream flow channel of the first flow channel 11 and the midstream flow channel of the second flow channel 12 to simultaneously cool one cell group 2. This arrangement allows the cooling effect of the coolant in the first flow channel 11 and the second flow channel 12 on the energy storage battery to complement each other, thereby further improving the uniformity of the cooling effect of the heat exchange plate 1 on different cell groups 2 of the energy storage battery and improving the temperature uniformity of the local cooling of the energy storage battery.

[0048] In some embodiments, please refer to Figure 1 , Figure 2 and Figure 5 The heat exchange plate 1 is located at the bottom and / or side of the cell assembly 2. This includes three scenarios: the heat exchange plate 1 is located at the bottom of the cell assembly 2, such as... Figure 1 and Figure 2 As shown; the heat exchange plate 1 is located on the side of the cell assembly 2, as... Figure 5 As shown, the heat exchange plate 1 is located both at the bottom and on the side of the cell assembly 2. Since the bottom and side of the cell assembly 2 are the main heat-generating areas of the cells, by arranging the heat exchange plate 1 in the above manner, the heat exchange efficiency of the heat exchange plate 1 on the cell assembly 2 can be improved, thereby improving the heat exchange efficiency of the heat exchange plate 1 on the energy storage battery.

[0049] In some embodiments, please refer to Figure 3 and Figure 4The heat exchanger is configured with multiple heat exchange components, and the heat exchange plate 1 is configured one-to-one with the heat exchange component. The energy storage container includes a primary pipeline 3, a secondary pipeline 4, and a tertiary pipeline 5. The primary pipeline 3 is used to guide the coolant. There are multiple secondary pipelines 4, all of which are connected to the primary pipeline 3. There are multiple tertiary pipelines 5, and each secondary pipeline 4 is connected to multiple tertiary pipelines 5. One end of the tertiary pipeline 5 is connected to the secondary pipeline 4, and the other end of the tertiary pipeline 5 is connected to the first flow channel 11 and / or the second flow channel 12. Taking the energy storage battery as an example, when the heat exchange plate 1 needs to exchange heat with the energy storage battery, the coolant flows into the inlet pipe of the secondary pipe 4 through the inlet pipe of the primary pipe 3. The coolant then flows into the inlet pipe of the tertiary pipe 5 through the inlet pipe of the secondary pipe 4. After that, the coolant flows into the first flow channel 11 and the second flow channel 12 in the heat exchange plate 1 and exchanges heat with the energy storage battery. After the heat exchange is completed, the coolant flows into the outlet pipe of the tertiary pipe 5. The coolant then collects in the outlet pipe of the secondary pipe 4 through the tertiary pipe 5. The coolant in the secondary pipe 4 then collects in the outlet pipe of the primary pipe 3 and flows out. This is how the heat exchange cycle of the energy storage battery is realized. With this setup, by adjusting the primary pipeline 3, the secondary pipeline 4, and the tertiary pipeline 5, it is possible to conveniently control the flow rate and direction of the coolant in the first flow channel 11 and the second flow channel 12 of multiple heat exchange plates 1, thereby facilitating the control of the overall heat exchange system of the energy storage container and improving the overall integrity of the energy storage container structure.

[0050] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0051] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0052] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0053] It should be understood that the qualifiers “first,” “second,” “third,” “fourth,” “fifth,” and “sixth” used in the description of the embodiments of this application are only used to more clearly illustrate the technical solutions and are not intended to limit the scope of protection of this application.

[0054] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A heat exchange plate, characterized in that, The heat exchange plate is used for heat exchange with the component to be heat exchanged. It is provided with a first flow channel and a second flow channel for the flow of coolant. The flow direction of coolant in the first flow channel and the second flow channel is opposite. The upstream flow channel of the first flow channel and the downstream flow channel of the second flow channel are both located in the first heat exchange area of ​​the heat exchange plate, and the upstream flow channel of the second flow channel and the downstream flow channel of the first flow channel are both located in the second heat exchange area of ​​the heat exchange plate. The first flow channel and the second flow channel are used together for heat exchange with the component to be heat exchanged.

2. The heat exchange plate according to claim 1, characterized in that, The first flow channel and the second flow channel are in heat exchange contact.

3. The heat exchange plate according to claim 1, characterized in that, The first flow channel and the second flow channel have the same length and the same extension shape.

4. The heat exchange plate according to any one of claims 1-3, characterized in that, The first flow channel and the second flow channel share a common flow channel outlet. The heat exchange plate also includes a first diverter plate with a liquid inlet. The first diverter plate is connected to the flow channel inlet of the first flow channel and the flow channel inlet of the second flow channel, respectively, and the first diverter plate has partial heat exchange contact with the first flow channel and / or the second flow channel.

5. The heat exchange plate according to any one of claims 1-3, characterized in that, The first flow channel and the second flow channel share a common flow channel inlet. The heat exchange plate also includes a second flow divider plate with a liquid outlet. The second flow divider plate is connected to the flow channel outlet of the first flow channel and the flow channel outlet of the second flow channel, respectively.

6. The heat exchange plate according to any one of claims 1-3, characterized in that, The first flow channel has a first inlet and a first outlet at its two ends, and the second flow channel has a second inlet and a second outlet at its two ends, respectively; the first inlet and the second inlet are set independently of each other, and the first outlet and the second outlet are set independently of each other.

7. An energy storage container, characterized in that, It includes the heat exchange component to be exchanged and the heat exchange plate as described in any one of claims 1-6.

8. The energy storage container according to claim 7, characterized in that, The heat exchange component is an energy storage battery, which includes multiple cell groups. Each cell group includes multiple cells stacked together. Each cell group has partial heat exchange contact with the first flow channel of the heat exchange plate and partial heat exchange contact with the second flow channel of the heat exchange plate.

9. The energy storage container according to claim 8, characterized in that, The heat exchange plate is disposed at the bottom and / or side of the battery cell assembly.

10. The energy storage container according to claim 7, characterized in that, Multiple heat exchange components are provided, and each heat exchange plate is configured one-to-one with a heat exchange component. The energy storage container includes: The primary piping is used to guide the coolant flow. There are multiple secondary pipelines, all of which are connected to the primary pipeline; The system has multiple tertiary pipelines, and each secondary pipeline is connected to multiple tertiary pipelines. One end of each tertiary pipeline is connected to a secondary pipeline, and the other end of each tertiary pipeline is connected to the first flow channel and / or the second flow channel.

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