Liquid storage device and thermal management system

Abstract

The utility model relates to a liquid storage device and a heat management system, the liquid storage device can comprise a box body, the box body can comprise a liquid inlet and a plurality of liquid outlets, and the box body is internally provided with a plurality of cavities; the multiple cavities in the box body can comprise one liquid outlet cavity, one liquid outlet cavity can be communicated with the multiple liquid outlets, or the multiple cavities in the box body can comprise multiple liquid outlet cavities, and one liquid outlet cavity is communicated with at least one liquid outlet. The liquid storage device can be connected to a plurality of heat exchange branches through a plurality of liquid outlets so as to exchange heat for a plurality of devices to be subjected to heat exchange; according to the multiple cavities, the circulation path of the heat exchange medium in the box body and / or the gas-liquid contact area of the heat exchange medium can be increased to a certain extent, and therefore gas remaining in the heat exchange medium is reduced; and when a plurality of liquid outlet cavities are arranged, the water grabbing phenomenon of each heat exchange branch can be improved and even avoided. On the basis, the liquid storage device can improve the heat exchange efficiency of the heat management system for the device to be subjected to heat exchange.

Description

Technical Field

[0001] This disclosure relates to the field of heat exchange technology, and more specifically, to a liquid storage device and a thermal management system. Background Technology

[0002] In related technologies, thermal management systems with liquid storage devices have poor heat exchange effects on the heat exchange devices to be exchanged, thus affecting the normal operation of the thermal management system. Utility Model Content

[0003] The purpose of this disclosure is to provide a liquid storage device and a thermal management system, which can improve the heat exchange efficiency of the thermal management system for the heat exchange device to be exchanged, thereby at least partially solving the above-mentioned technical problems.

[0004] To achieve the above objectives, a first aspect of this disclosure provides a liquid storage device, including a housing, the housing including a liquid inlet and a plurality of liquid outlets, the housing having a plurality of chambers; the plurality of chambers including a liquid outlet chamber connected to the plurality of liquid outlets, or the plurality of chambers including a plurality of liquid outlet chambers, the liquid outlet chamber being connected to at least one of the liquid outlets.

[0005] Optionally, the plurality of liquid outlets are used to connect to different heat exchange branches, and different heat exchange branches are equipped with pump devices of different power.

[0006] Optionally, the heat exchange branch is used to exchange heat with the heat exchange device of the charging system.

[0007] Optionally, the diameters of the different outlets may vary.

[0008] Optionally, the box body has at least two liquid outlet chambers, and each liquid outlet chamber is provided with a liquid outlet.

[0009] Optionally, the box body also has a liquid inlet chamber, the liquid outlet chamber is connected to the liquid inlet chamber, and the liquid inlet chamber is provided with the liquid inlet.

[0010] Optionally, the housing also includes an intermediate chamber, through which the liquid outlet chamber is connected to the liquid inlet chamber.

[0011] Optionally, the heat exchange medium inside the box can flow from the inlet chamber through the intermediate chamber and then be discharged through the outlet of the outlet chamber.

[0012] Optionally, the liquid storage device further includes a first partition, the intermediate chamber is divided into a first intermediate sub-chamber and a second intermediate sub-chamber by the first partition, the second intermediate sub-chamber is located below the first intermediate sub-chamber, the first intermediate sub-chamber is connected to the liquid outlet chamber and the second intermediate sub-chamber, and both the first intermediate sub-chamber and the second intermediate sub-chamber are connected to the liquid inlet chamber.

[0013] Optionally, the heat exchange medium inside the chamber can flow from the inlet chamber through the second intermediate sub-chamber and then into the outlet chamber; and / or, the heat exchange medium can flow from the inlet chamber through the first intermediate sub-chamber and then into the outlet chamber; and / or, the heat exchange medium can flow from the inlet chamber through the first intermediate sub-chamber and the second intermediate sub-chamber and then into the outlet chamber.

[0014] Optionally, the first partition is provided with a first communication port connecting the first intermediate sub-chamber and the second intermediate sub-chamber.

[0015] Optionally, the liquid outlet chamber is divided into a first liquid outlet sub-chamber and a second liquid outlet sub-chamber located below the first liquid outlet sub-chamber by a second partition. The first liquid outlet sub-chamber is connected to the first intermediate sub-chamber and the second liquid outlet sub-chamber, and the second liquid outlet sub-chamber is connected to the second intermediate sub-chamber and the liquid outlet.

[0016] Optionally, the first partition and the second partition are the same partition.

[0017] Optionally, the heat exchange medium inside the chamber can flow from the inlet chamber through the second intermediate sub-chamber and then into the second outlet sub-chamber; and / or, the heat exchange medium can flow from the inlet chamber through the first intermediate sub-chamber and the first outlet sub-chamber and then into the second outlet sub-chamber; and / or, the heat exchange medium can flow from the inlet chamber through the first intermediate sub-chamber and the second intermediate sub-chamber and then into the second outlet sub-chamber.

[0018] Optionally, the second partition is provided with a second communication port connecting the first liquid outlet chamber and the second liquid outlet chamber.

[0019] Optionally, the housing is divided into multiple chambers by multiple third partitions, each third partition including a first flow hole for the heat exchange medium inside the housing to flow between the multiple chambers.

[0020] Optionally, the first flow hole includes a first flow hole portion and a second flow hole portion, wherein in the height direction, the first flow hole portion is located above the first partition plate, and the second flow hole portion is located below the first partition plate.

[0021] Optionally, the housing is provided with a first liquid level indicator and a second liquid level indicator at intervals along the height direction, with the first liquid level indicator located above the second liquid level indicator, wherein, in the height direction, the lowest point of the first flow hole is lower than the second liquid level indicator.

[0022] Optionally, the tank body is provided with a first liquid level indicator and a second liquid level indicator at intervals along the height direction, the first liquid level indicator is located above the second liquid level indicator, and the first partition is located between the first liquid level indicator and the second liquid level indicator in the height direction.

[0023] Optionally, the first liquid level indicator and the second liquid level indicator are used to indicate the limit liquid level height of the heat exchange medium in the tank when the liquid storage device is working normally.

[0024] Optionally, in the height direction, the liquid inlet is located below the second liquid level indicator.

[0025] Optionally, the number of liquid inlet chambers is one or more, and each liquid inlet chamber is connected to at least one of the intermediate chambers.

[0026] Optionally, the number of intermediate chambers is one or more, and each intermediate chamber is connected to at least one of the liquid outlet chambers.

[0027] Optionally, the volume of the intermediate chamber is larger than that of the liquid outlet chamber.

[0028] Optionally, the area of ​​the intermediate chamber projected along the height direction is greater than the area of ​​the liquid outlet chamber projected along the height direction.

[0029] Optionally, the area of ​​the gas-liquid interface in the intermediate chamber is larger than the area of ​​the gas-liquid interface in the liquid outlet chamber.

[0030] Optionally, the box body further includes an intermediate chamber, through which the liquid outlet chamber is connected to the liquid inlet chamber of the box body. In the height direction, the bottom surface of the intermediate chamber is higher than the bottom surface of the liquid outlet chamber and / or the liquid inlet chamber.

[0031] Optionally, the housing includes a recessed portion that is recessed toward the housing, the recessed portion causing the housing to form a first bottom wall and a second bottom wall with different heights in the height direction, the height of the first bottom wall being lower than the height of the second bottom wall, at least a portion of the first bottom wall forming the bottom surface of the liquid outlet chamber, and at least a portion of the second bottom wall forming the bottom surface of the intermediate chamber.

[0032] Optionally, a portion of the first bottom wall forms the bottom surface of the liquid inlet chamber.

[0033] Optionally, the projection of the housing in the first direction is an inverted "L" shape, such that the height of the bottom surface of the intermediate chamber is higher than the height of the bottom surface of the liquid outlet chamber and / or the liquid inlet chamber.

[0034] Optionally, the gas inside the housing can circulate between two adjacent chambers.

[0035] Optionally, the housing further includes an inlet chamber and an intermediate chamber, the outlet chamber being connected to the inlet chamber via the intermediate chamber, and a communication structure being provided on the housing for connecting the inside and outside of the housing, the communication structure being connected to at least one of the inlet chamber, the intermediate chamber, and the outlet chamber.

[0036] Optionally, the connecting structure is connected to the liquid outlet chamber, and the gas can flow from the liquid inlet chamber through the intermediate chamber and then into the liquid outlet chamber; and / or, the gas can flow from the liquid inlet chamber into the liquid outlet chamber; and / or, the gas can flow from the intermediate chamber into the liquid outlet chamber; and / or, the gas can flow from the intermediate chamber through the liquid inlet chamber and then into the liquid outlet chamber.

[0037] Optionally, the housing is divided into multiple chambers by a third partition, and the third partition is provided with a second flow hole for the gas to flow between the multiple chambers.

[0038] Optionally, the housing is provided with a first liquid level indicator and a second liquid level indicator at intervals along the height direction, with the first liquid level indicator located above the second liquid level indicator, wherein, in the height direction, the highest point of the second flow hole is higher than the first liquid level indicator.

[0039] Optionally, the tank body is provided with a first liquid level indicator and a second liquid level indicator at intervals along the height direction, the first liquid level indicator being located above the second liquid level indicator, wherein the connecting structure is higher than the first liquid level indicator in the height direction.

[0040] Optionally, the communication structure includes an exhaust section, which is configured to open after the air pressure inside the housing reaches a preset pressure.

[0041] Optionally, the connecting structure is provided with a liquid replenishment section, which is used to replenish the heat exchange medium into the tank.

[0042] Optionally, the chamber has a detection chamber that communicates with at least one of the other chambers for detecting the liquid level of the heat exchange medium inside the chamber.

[0043] Optionally, the liquid storage device further includes a liquid level detection element, at least a portion of which is located within the detection chamber.

[0044] Optionally, the housing further includes an inlet chamber and an intermediate chamber, the inlet chamber being connected to the outlet chamber via the intermediate chamber, and the detection chamber being connected to at least one of the inlet chamber, the intermediate chamber, and the outlet chamber.

[0045] Optionally, the inlet chamber, the detection chamber, and the outlet chamber are arranged side by side along a first direction to form a first row of chambers, and a plurality of intermediate chambers are arranged side by side along a first direction to form a second row of chambers, and the first row of chambers and the second row of chambers are arranged side by side along a second direction.

[0046] Optionally, the liquid storage device further includes a temperature sensor, which is disposed on the housing to monitor the temperature of the heat exchange medium inside the housing.

[0047] The second aspect of this disclosure includes the aforementioned liquid storage device.

[0048] Optionally, the thermal management system further includes multiple heat exchange branches, and each outlet of the liquid storage device exchanges heat with the corresponding heat exchange device through the corresponding heat exchange branch.

[0049] Optionally, a pump device is provided on each of the heat exchange branches.

[0050] Optionally, the power of each of the pump units may differ.

[0051] Optionally, the thermal management system further includes a heat exchanger, the inlet of which is connected to the heat exchange branch, and the outlet of which is connected to the liquid inlet of the housing.

[0052] Optionally, the heat exchange device includes at least one of a charging pile, a charging gun, a charging host converter, and an energy storage module.

[0053] Through the above technical solution, the liquid storage device of this disclosure has multiple liquid outlets, which can be connected to, for example, multiple heat exchange branches to perform heat exchange on, for example, multiple devices to be heat exchanged. Furthermore, since the housing has multiple chambers, these chambers can, to a certain extent, increase the flow path of the heat exchange medium within the housing and / or the gas-liquid contact area of ​​the heat exchange medium. This reduces the amount of gas retained in the heat exchange medium, thereby reducing or even avoiding gas blockage in the heat exchange branches due to excessive gas in the heat exchange medium. In addition, having multiple liquid outlet chambers can, to a certain extent, reduce the number of liquid outlets corresponding to each liquid outlet chamber, thereby improving or even avoiding water competition between different heat exchange branches, especially when the power of the pumps on each heat exchange branch is different. Based on this, the liquid storage device of this disclosure can improve the heat exchange efficiency of the thermal management system for the devices to be heat exchanged.

[0054] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0055] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0056] Figure 1 This is a first-view schematic diagram of the liquid storage device provided in the embodiments of this disclosure;

[0057] Figure 2 This is a second-view schematic diagram of the liquid storage device provided in the embodiments of this disclosure;

[0058] Figure 3 This is a first-view schematic diagram of the liquid storage device provided in the embodiments of this disclosure;

[0059] Figure 4 This is a second-view schematic diagram of the liquid storage device provided in the embodiments of this disclosure;

[0060] Figure 5 This is an exploded view of the liquid storage device provided in the embodiments of this disclosure;

[0061] Figure 6 This is a third-view schematic diagram of the liquid storage device provided in the embodiments of this disclosure;

[0062] Figure 7 This is a schematic diagram of the top structure of the liquid storage device provided in the embodiments of this disclosure;

[0063] Figure 8 This is an axial sectional view of the liquid storage device provided in the embodiments of this disclosure;

[0064] Figure 9This is an exploded view of a second embodiment of the liquid storage device disclosed herein;

[0065] Figure 10 This is an axial sectional view of a second embodiment of the liquid storage device disclosed herein;

[0066] Figure 11 This is a schematic diagram of a thermal management system provided in an embodiment of this disclosure.

[0067] Explanation of reference numerals in the attached figures

[0068] 1-Box body; 101-Inlet; 102-Outlet; 103-Recess; 1031-First bottom wall; 1032-Second bottom wall; 104-First liquid level indicator; 105-Second liquid level indicator; 2-Outlet chamber; 21-First outlet sub-chamber; 22-Second outlet sub-chamber; 3-Inlet chamber; 4-Intermediate chamber; 41-First intermediate sub-chamber; 42-Second intermediate sub-chamber; 5-Detection chamber; 6-Liquid level detection element; 7-Third partition; 711-Second flow hole; 712-First flow hole; 713-First flow hole section; 714-Second flow hole section; 8-Connecting structure; 81-Exhaust section; 82-Replenishment section; 9a-First partition; 9b-Second partition; 91-First connecting port; 92-Second connecting port; 10-Temperature sensor; 11-Heat exchange device to be exchanged; 12-Heat exchange branch; 13-Pump device; 14-Heat exchanger; 100-Cavity; 200-First row of chambers; 300-Second row of chambers; 400-Gas-liquid interface; A-First direction; B-Second direction. Detailed Implementation

[0069] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0070] In this disclosure, unless otherwise stated, directional terms such as "up" and "down" generally refer to the relative "up" and "down" in the direction of gravity when the corresponding components are in use. For details, please refer to [reference needed]. Figures 3 to 5 , Figures 8 to 10 In the drawings shown, "inner" and "outer" refer to "inner" and "outer" relative to the contour of the corresponding component itself; "height direction" refers to the height direction of the liquid storage device during normal use. Furthermore, the terms "first," "second," "third," etc., used in this disclosure are for distinguishing one element from another and do not have sequential or importance implications. In addition, in the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements. The above definitions are for explanation and illustration only and should not be construed as limiting this disclosure.

[0071] The liquid storage device in the exemplary embodiments of this disclosure will now be described with reference to the accompanying drawings.

[0072] like Figures 1 to 11 As shown, in a first aspect, this disclosure provides a liquid storage device. The liquid storage device may include a housing 1, which may include an inlet 101 and multiple outlets 102. The housing 1 has multiple chambers 100. Each chamber 100 may include an outlet chamber 2, which may be connected to the multiple outlets 102. Each outlet 102 may be connected to a heat exchange branch 12 in a thermal management system, and the heat exchange branch 12 may be connected to a heat exchange device 11 in the thermal management system. Thus, heat exchange within the housing 1... The medium can flow in multiple heat exchange branches 12 to simultaneously exchange heat with multiple heat exchange devices 11. Since the housing 1 has multiple chambers 100, in the case of having one liquid outlet chamber 2, the presence of the remaining chambers 100 can increase the flow path of the heat exchange medium in the housing 1 and / or the gas-liquid contact area of ​​the heat exchange medium, so as to facilitate the discharge of gas in the heat exchange medium. This reduces the amount of gas remaining in the heat exchange medium, thereby reducing or even avoiding the phenomenon of gas blockage in the heat exchange branches 12 due to excessive gas in the heat exchange medium.

[0073] Alternatively, the multiple chambers 100 within the housing 1 may include multiple liquid outlet chambers 2, each liquid outlet chamber 2 connected to at least one liquid outlet 102. Each liquid outlet chamber 2 is independently arranged in the liquid storage device and is equipped with a liquid outlet 102. This reduces the number of liquid outlets 102 corresponding to each liquid outlet chamber 2 to a certain extent. Thus, when the heat exchange medium in the housing 1 needs to exchange heat with multiple heat exchange devices 11 simultaneously, it can improve or even avoid water competition among the various heat exchange branches 12, especially when the power of the pump devices 13 on each heat exchange branch 12 is different. Based on this, the housing 1 of this disclosure can improve the heat exchange efficiency of the thermal management system for the heat exchange devices 11.

[0074] It should be noted that the heat exchange medium inside the housing 1 can be a fluid medium such as water, an aqueous solution of ethylene glycol, or a fluorinated liquid. For example, the heat exchange medium inside the housing 1 of this disclosure can be configured as water.

[0075] Multiple outlets 102 can be used to connect to different heat exchange branches 12, each equipped with a pump device 13 of varying power. When heat exchange is required on the heat exchange device 11, the pump device 13 on the corresponding heat exchange branch 12 can be activated to draw sufficient heat exchange medium from the housing 1 into the heat exchange branch 12 for heat exchange on the heat exchange device 11. The different power of the pump devices 13 allows operators to match pump devices 13 with different power according to the characteristics of the heat exchange device 11. For example, a pump device 13 with higher power can be connected to a heat exchange device 11 with higher calorific value, while a pump device 13 with lower power can be connected to a heat exchange device 11 with lower calorific value, thereby improving the heat exchange effect of the heat exchange medium on the heat exchange device 11 in the thermal management system.

[0076] In addition, the heat exchange branch 12 can be used to exchange heat with the heat exchange device 11 in the charging system. For example, in the charging system, the heat exchange device 11 can be a charging pile and / or a charging gun, etc., so that the heat exchange medium can exchange heat with the charging pile and / or the charging gun during the charging operation, thereby improving the working efficiency, stability and safety of the charging system.

[0077] Furthermore, the diameter of the outlet 102 can be different. Operators can connect different heat exchange branches 12 with outlets 102 of different diameters according to the power of the pump device 13 on the heat exchange branch 12 and the characteristics of the heat exchange device 11 to be heat exchanged corresponding to the heat exchange branch 12. For example, when the power of the pump device 13 on the heat exchange branch 12 is large and the heat generation of the heat exchange device 11 is large, the heat exchange branch 12 can be connected to the outlet 102 with a larger diameter to make full use of the pump device 13 on the heat exchange branch 12 and to ensure that there is a sufficient amount of heat exchange medium in the heat exchange branch 12 to exchange heat with the heat exchange device 11. Of course, when the power of the pump device 13 on the heat exchange branch 12 is small and the heat generation of the heat exchange device 11 is small, the heat exchange branch 12 can be connected to the outlet 102 with a smaller diameter.

[0078] For example, such as Figure 1 , Figure 2 , Figure 6 , Figure 8 , Figure 10As shown, the housing 1 can have at least two liquid outlet chambers 2, each with a liquid outlet 102. That is, the housing 1 has multiple liquid outlet chambers 2, each of which can be independently located within the housing 1. This reduces the number of liquid outlets 102 corresponding to each liquid outlet chamber 2. In this way, when the heat exchange medium in the housing 1 needs to simultaneously exchange heat with multiple heat exchange devices 11, the water competition phenomenon in the various heat exchange branches 12 can be improved or even avoided. Considering that the size of the liquid storage device is limited by the installation space, the housing 1 can have two liquid outlet chambers 2, each with a liquid outlet 102. This means that the heat management system with the liquid storage device can simultaneously exchange heat with two heat exchange devices 11 without water competition due to differences in the power of the pump device 13.

[0079] In addition, the volume of the liquid outlet chamber 2 can be adjusted adaptively as needed. For example, the volume of the liquid outlet chamber 2 connected to the heat exchange branch 12 of the pump device 13 with a larger power can be larger, and correspondingly, the volume of the liquid outlet chamber 2 connected to the heat exchange branch 12 of the pump device 13 with a smaller power can be smaller, so as to reduce the volume of the liquid storage device while ensuring that each heat exchange branch 12 can draw a sufficient amount of heat exchange medium to exchange heat with the heat exchange device 11.

[0080] In embodiments of this disclosure, such as Figure 1 , Figure 2 , Figure 6 , Figure 8 , Figure 10 As shown, the housing 1 may also have an inlet chamber 3, and the outlet chamber 2 is connected to the inlet chamber 3. The inlet chamber 3 is provided with an inlet 101. The inlet chamber 3 is mainly used to guide the heat exchange medium that has been heat exchanged by the heat exchanger 14 in the thermal management system back into the housing 1. The fact that the heat exchange medium flows into the inlet chamber 3 first can reduce the flow rate of the heat exchange medium, so that at least some of the gas in the heat exchange medium can be discharged from the liquid surface, thereby reducing or even avoiding the phenomenon of gas blockage in the heat exchange branch 12 due to excessive gas in the heat exchange medium, which would affect the flow rate and heat exchange of the heat exchange medium in the heat exchange branch 12.

[0081] In addition, such as Figure 1 , Figure 2 , Figure 6 , Figure 8 , Figure 10As shown, the housing 1 may also have an intermediate chamber 4, and the liquid outlet chamber 2 is connected to the liquid inlet chamber 3 through the intermediate chamber 4. That is, the heat exchange medium located in the liquid inlet chamber 3 will flow into the liquid outlet chamber 2 after passing through the intermediate chamber 4. The intermediate chamber 4 can reduce the flow rate of the heat exchange medium in the housing 1 and stabilize the liquid level. Thus, while reducing the gas generated by the heat exchange medium due to agitation, more gas can be discharged from the heat exchange medium, so as to further reduce or even avoid the phenomenon of gas blockage caused by excessive gas in the heat exchange medium, which would affect the flow rate and heat exchange effect of the heat exchange medium in the heat exchange branch 12.

[0082] In some possible implementations, such as Figure 9 and Figure 10 As shown, the liquid storage device may further include a first partition 9a, and the intermediate chamber 4 is divided into a first intermediate sub-chamber 41 and a second intermediate sub-chamber 42 by the first partition 9a. The second intermediate sub-chamber 42 is located below the first intermediate sub-chamber 41. The first intermediate sub-chamber 41 is connected to the liquid outlet chamber 2 and the second intermediate sub-chamber 42. Both the first intermediate sub-chamber 41 and the second intermediate sub-chamber 42 are connected to the liquid inlet chamber 3. The first partition 9a divides the intermediate chamber 4 into upper and lower parts. Since the first intermediate sub-chamber 41 is located above the second intermediate sub-chamber 42 and the two are connected, the heat exchange medium in the first intermediate sub-chamber 41 can be replenished to the second intermediate sub-chamber 42 in a timely manner after the heat exchange medium in the second intermediate sub-chamber 42 flows into the liquid outlet chamber 2, so as to ensure the flow rate of the heat exchange medium in the liquid outlet chamber 2. In addition, the gas in the heat exchange medium of the second intermediate sub-chamber 42 can be discharged through the liquid surface together with the gas in the heat exchange medium of the first intermediate sub-chamber 41, so as to reduce the gas in the heat exchange medium of the intermediate chamber 4.

[0083] In addition, the arrangement of the first partition 9a will cause the flow of the heat exchange medium in the box 1 to be mainly located in the second intermediate sub-chamber 42. This can reduce the main flow area of ​​the heat exchange medium in the intermediate chamber 4 to a certain extent, thereby reducing the gas generated by the heat exchange medium in the intermediate chamber 4 due to agitation.

[0084] In addition, the arrangement of the first partition 9a will also physically limit the agitation amplitude of the heat exchange medium in the second intermediate sub-chamber 42, so as to further reduce the gas generated by the agitation of the heat exchange medium in the intermediate chamber 4.

[0085] After the first partition 9a is installed in the intermediate chamber 4, the heat exchange medium in the housing 1 can have multiple flow modes, for example, such as Figure 9 and Figure 10As shown, the heat exchange medium in the housing 1 can flow from the inlet chamber 3 through the second intermediate sub-chamber 42 and then into the outlet chamber 2; and / or, the heat exchange medium can flow from the inlet chamber 3 through the first intermediate sub-chamber 41 and then into the outlet chamber 2; and / or, the heat exchange medium can flow from the inlet chamber 3 through the first intermediate sub-chamber 41 and the second intermediate sub-chamber 42 and then into the outlet chamber 2.

[0086] It can be seen that the first partition 9a can increase the flow path of at least part of the heat exchange medium in the box 1 and the gas-liquid contact area, thereby ensuring the stability of the heat exchange medium when it flows in the box 1 and reducing the gas in the heat exchange medium.

[0087] Among them, such as Figure 9 and Figure 10 As shown, the first partition 9a may be provided with a first connecting port 91 connecting the first intermediate sub-chamber 41 and the second intermediate sub-chamber 42. The first connecting port 91 can serve as a channel for replenishing liquid from the first intermediate sub-chamber 41 to the second intermediate sub-chamber 42, or as a channel for gas from the second intermediate sub-chamber 42 to flow into the first intermediate sub-chamber 41. There may be one or more first connecting ports 91, and multiple first connecting ports 91 may be evenly arranged on the first partition 9a. Of course, the shape of the first connecting port 91 may include circular or rectangular shapes, etc., and the operator may make adaptive adjustments as needed. This disclosure does not specifically limit the number and shape of the first connecting ports 91.

[0088] In other possible implementations, such as Figure 9 and Figure 10 As shown, the liquid outlet chamber 2 can be divided into a first liquid outlet sub-chamber 21 and a second liquid outlet sub-chamber 22 located below the first liquid outlet sub-chamber 21 by the second partition 9b. The first liquid outlet sub-chamber 21 is connected to the first intermediate sub-chamber 41 and the second liquid outlet sub-chamber 22, and the second liquid outlet sub-chamber 22 is connected to the second intermediate sub-chamber 42 and the liquid outlet 102. The second liquid outlet sub-chamber 22 can be used to discharge the heat exchange medium in the housing 1 to the liquid outlet 102, so that the heat exchange medium can exchange heat with the heat exchange device 11 through the heat exchange branch 12. In addition, the functions and roles of the first liquid outlet sub-chamber 21, the second liquid outlet sub-chamber 22 and the second partition 9b correspond to the functions and roles of the first intermediate sub-chamber 41, the second intermediate sub-chamber 42 and the first partition 9a. For the sake of brevity, this disclosure will not elaborate further here.

[0089] In embodiments of this disclosure, such as Figure 9 and Figure 10As shown, the first partition 9a and the second partition 9b can be the same partition. That is, the first partition 9a and the second partition 9b can be integrally formed to improve their structural strength and facilitate their connection with the box body 1. For example, the first partition 9a and the second partition 9b can be connected to the inner wall of the box body 1 by welding or snap-fitting, thereby ensuring the stability of the first partition 9a and the second partition 9b after being connected to the box body 1.

[0090] Furthermore, since both the intermediate chamber 4 and the liquid outlet chamber 2 are equipped with baffles, the heat exchange medium can have multiple flow paths within the housing 1. For example, such as... Figure 9 and Figure 10 As shown, the heat exchange medium in the housing 1 can flow from the inlet chamber 3 through the second intermediate sub-chamber 42 and then into the second outlet sub-chamber 22; and / or, the heat exchange medium can flow from the inlet chamber 3 through the first intermediate sub-chamber 41 and the first outlet sub-chamber 21 and then into the second outlet sub-chamber 22; and / or, the heat exchange medium can flow from the inlet chamber 3 through the first intermediate sub-chamber 41 and the second intermediate sub-chamber 42 and then into the second outlet sub-chamber 22. This can further increase the flow path and gas-liquid contact area of ​​at least part of the heat exchange medium in the housing 1, thereby ensuring the stability of the heat exchange medium when flowing in the housing 1 and reducing the amount of gas in the heat exchange medium.

[0091] Among them, such as Figure 9 and Figure 10 As shown, the second partition 9b may be provided with a second connecting port 92 that connects the first liquid outlet chamber 21 and the second liquid outlet chamber 22. The second connecting port 92 can serve as a channel for replenishing liquid from the first liquid outlet chamber 21 to the second liquid outlet chamber 22, or as a channel for gas from the second liquid outlet chamber 22 to flow into the first liquid outlet chamber 21. There may be one or multiple second connecting ports 92, which can be evenly arranged on the second partition 9b. Of course, the shape of the second connecting port 92 may include circular or rectangular shapes, etc., and operators can make adaptive adjustments as needed. This disclosure does not specifically limit the number and shape of the second connecting ports 92.

[0092] In some possible implementations, such as Figure 1 , Figure 2 , Figure 8 , Figure 10 As shown, the housing 1 is divided into multiple chambers 100 by multiple third partitions 7. Each third partition 7 includes a first flow hole 712, which is used for the heat exchange medium in the housing 1 to flow between the multiple chambers 100. The multiple third partitions 7 are arranged crosswise in the housing 1, which facilitates the formation of multiple chambers 100 and can also improve the structural strength of the housing 1 to a certain extent.

[0093] Among them, such as Figure 1 , Figure 2 , Figure 8 , Figure 10 As shown, the first flow-through hole 712 includes a first flow-through hole portion 713 and a second flow-through hole portion 714. In the height direction, the first flow-through hole portion 713 is located above the first partition 9a and the second partition 9b, and the second flow-through hole portion 714 is located below the first partition 9a and the second partition 9b. That is, the first partition 9a and the second partition 9b can divide the first flow-through hole 712 into upper and lower parts. The first flow-through hole portion 713 is connected to the first intermediate sub-chamber 41 and / or the first liquid outlet sub-chamber 21, and the second flow-through hole portion 714 is connected to the second intermediate sub-chamber 42 and / or the second liquid outlet sub-chamber 22. Part of the heat exchange medium in the liquid inlet chamber 3 can flow into the heat exchange branch 12 from the liquid outlet 102 through the second flow-through hole portion 714, sequentially through the second intermediate sub-chamber 42 and the second liquid outlet sub-chamber 22; the other part of the heat exchange medium can... The medium flows sequentially into the first intermediate sub-chamber 41 and the first liquid outlet sub-chamber 21 through the first flow hole 713. When the second intermediate sub-chamber 42 and / or the second liquid outlet sub-chamber 22 need to be replenished with heat exchange medium, the first intermediate sub-chamber 41 corresponding to the second intermediate sub-chamber 42 and the first liquid outlet sub-chamber 21 corresponding to the second liquid outlet sub-chamber 22 can replenish the heat exchange medium to the second intermediate sub-chamber 42 and / or the second liquid outlet sub-chamber 22 in a timely manner, so as to ensure the stability of the heat exchange medium flow rate in the heat exchange branch 12 corresponding to the liquid outlet chamber 2.

[0094] If there is too much heat exchange medium in tank 1, the flow rate of the heat exchange medium may be too low, affecting the normal flow and circulation of the heat exchange medium. It may also cause pump 13 to need to overcome higher fluid resistance to extract the heat exchange medium from liquid chamber 2, increasing energy consumption. If there is too little heat exchange medium in tank 1, airlock may occur due to insufficient flow, affecting the normal operation of the thermal management system. Therefore, to more intuitively show the maximum and minimum liquid levels that the heat exchange medium in tank 1 can have, such as... Figure 3 and Figure 4 As shown, the tank 1 can be provided with a first liquid level indicator 104 and a second liquid level indicator 105 at intervals along the height direction. The first liquid level indicator 104 is located above the second liquid level indicator 105. That is, the first liquid level indicator 104 and the second liquid level indicator 105 are used to indicate the limit liquid level height of the heat exchange medium in the tank 1 when the liquid storage device is working normally. When the liquid level height of the heat exchange medium is between the two, the liquid storage device can operate normally.

[0095] It should be noted that the first liquid level marking part 104 and the second liquid level marking part 105 can be disposed on the outside of the housing 1 in various ways. For example, the first liquid level marking part 104 and the second liquid level marking part 105 can be configured as scale lines or marking lines. Of course, the first liquid level marking part 104 and the second liquid level marking part 105 can also be configured as marking structural members that can be detachably connected or fixed to the corresponding position on the outside of the housing 1. This disclosure does not limit this.

[0096] Among them, such as Figure 1 , Figure 2 , Figure 8 , Figure 10 As shown, in the height direction, the lowest point of the first flow-through hole 712 can be lower than the second liquid level indicator 105. That is, the lowest point of the first flow-through hole 712 is located below the lowest point of the heat exchange medium liquid level. Therefore, when the heat exchange medium flows between the chambers 100, its flow channel can be located below the liquid surface of the heat exchange medium, that is, the main flow area of ​​the heat exchange medium is located below its liquid surface, so as to form a dark flow in the heat exchange medium. This reduces the agitation amplitude of the heat exchange medium when it flows between the chambers 100, thereby reducing the gas generated when the heat exchange medium flows in the housing 1.

[0097] Furthermore, based on this, such as Figure 9 , Figure 10 As shown, in the height direction, the first partition 9a and the second partition 9b can be located between the first liquid level indicator 104 and the second liquid level indicator 105. For example, in the height direction, the first partition 9a and the second partition 9b can be set close to the center position between the first liquid level indicator 104 and the second liquid level indicator 105, or the first partition 9a and the second partition 9b can be set close to the second liquid level indicator 105. In this way, after the liquid storage device has been working for a period of time, even if a certain amount of heat exchange medium is consumed, the first partition 9a can still separate the remaining heat exchange medium into the first intermediate sub-chamber 41 and the second intermediate sub-chamber 42, and the second partition 9b can still separate the remaining heat exchange medium into the first outlet sub-chamber 21 and the second outlet sub-chamber 22. This improves the flow stability of the heat exchange medium in the tank 1 and reduces the occurrence of gas due to excessive agitation of the heat exchange medium.

[0098] In addition, such as Figures 3 to 5As shown, in the height direction, the inlet 101 can be located below the second liquid level indicator 105. Thus, when the heat exchange medium in the tank 1 is at its normal operating level, after heat exchange by the heat exchanger 14 in the thermal management system, the heat exchange medium flowing back into the tank 1 through the inlet 101 will directly enter below the liquid surface of the heat exchange medium in the tank 1. That is, the heat exchange medium flowing back into the tank 1 will not have a height difference with the heat exchange medium in the tank 1 when passing through the inlet 101. This further reduces the amplitude of agitation of the heat exchange medium during flow, thereby reducing the gas generated during the flow of the heat exchange medium.

[0099] In some possible implementations, such as Figure 1 and Figure 2 As shown, the liquid inlet chamber 3 can also be connected to the intermediate chamber 4 through various communication methods. The number of liquid inlet chambers 3 can be one or more, and each liquid inlet chamber 3 can be connected to at least one intermediate chamber 4. For example, when there is one inlet chamber 3 and multiple intermediate chambers 4, the multiple intermediate chambers 4 can be connected in series in a linear direction, and the inlet chamber 3 can be connected to one of the intermediate chambers 4, allowing the heat exchange medium in the inlet chamber 3 to enter the intermediate chambers 4 sequentially. Alternatively, when there is one inlet chamber 3 and multiple intermediate chambers 4, the multiple intermediate chambers 4 can be connected to the inlet chamber 3 respectively, so that the heat exchange medium in the inlet chamber 3 can flow into the multiple intermediate chambers 4 simultaneously. Alternatively, when there is one inlet chamber 3 and multiple intermediate chambers 4, some of the intermediate chambers 4 can be connected in series, and some of the intermediate chambers 4 can be connected to the inlet chamber 3 respectively. Or, when there are multiple inlet chambers 3 and multiple intermediate chambers 4, and their quantities correspond to each other, the inlet chambers 3 and the intermediate chambers 4 can be arranged in a one-to-one correspondence. The number of inlet chambers 3 and intermediate chambers 4 and their connection relationship can be adaptively adjusted according to the installation environment of the liquid storage device.

[0100] In addition, such as Figures 1 to 2 As shown, the number of intermediate chambers 4 can be one or more, and each intermediate chamber 4 is connected to at least one outlet chamber 2. For example, when there are multiple intermediate chambers 4, the flow path of the heat exchange medium within the housing 1 can be increased to further slow down the flow rate of the heat exchange medium and increase the contact area between the surface of the heat exchange medium and the air within the housing 1, thereby maximizing the discharge of gas from the heat exchange medium. The number of intermediate chambers 4 can be the same as the number of outlet chambers 2, allowing for a one-to-one correspondence between the intermediate chambers 4 and the outlet chambers 2. This improves or even avoids uneven flow when the intermediate chambers 4 replenish the heat exchange medium to the outlet chambers 2, ensuring the flow rate of the heat exchange medium in each outlet chamber 2.

[0101] In addition, such as Figures 1 to 2As shown, the volume of the intermediate chamber 4 can be larger than that of the outlet chamber 2. This ensures that the intermediate chamber 4 contains a sufficient amount of heat exchange medium, so that after the heat exchange medium in the outlet chamber 2 flows out, the heat exchange medium in the intermediate chamber 4 can replenish the outlet chamber 2 with a sufficient amount of heat exchange medium, thus avoiding the phenomenon of air blockage in the heat exchange branch 12 connected to the outlet 102 due to insufficient heat exchange medium in the outlet chamber 2.

[0102] In addition, such as Figures 1 to 2 As shown, the projected area of ​​the intermediate chamber 4 in the height direction can be larger than the projected area of ​​the outlet chamber 2 in the height direction. This can, to a certain extent, slow down the flow velocity of the heat exchange medium in the intermediate chamber 4, ensure the flow stability of the heat exchange medium in the intermediate chamber 4, and reduce the gas generated when the heat exchange medium flows in the intermediate chamber 4.

[0103] In addition, such as Figures 1 to 2 As shown, the area of ​​the gas-liquid interface 400 in the intermediate chamber 4 can be larger than the area of ​​the gas-liquid interface 400 in the outlet chamber 2. That is, the gas-liquid contact area of ​​the heat exchange medium in the intermediate chamber 4 can be larger than the gas-liquid contact area of ​​the heat exchange medium in the outlet chamber 2. A larger gas-liquid contact area facilitates the discharge of gas from the heat exchange medium, thereby reducing or even avoiding the occurrence of gas lock.

[0104] In embodiments of this disclosure, such as Figure 3 , Figure 4 , Figure 8 , Figure 10 As shown, since the housing 1 can have an inlet chamber 3, an intermediate chamber 4, and an outlet chamber 2, the outlet chamber 2 can be connected to the inlet chamber 3 of the housing 1 through the intermediate chamber 4. Furthermore, in the height direction, the bottom surface of the intermediate chamber 4 is higher than the bottom surface of the outlet chamber 2 and / or the inlet chamber 3. Thus, in addition to stabilizing the heat exchange medium and reducing gas within it, the intermediate chamber 4 can also replenish the outlet chamber 2 with sufficient heat exchange medium after it flows out from the outlet port 102, reducing or even preventing insufficient heat exchange medium in the outlet chamber 2 from causing the pump 13 to run dry and suck in air.

[0105] For example, such as Figure 3 , Figure 4 , Figure 8 , Figure 10As shown, the housing 1 may include a recessed portion 103 recessed towards the housing 1. The recessed portion 103 causes the housing 1 to form a first bottom wall 1031 and a second bottom wall 1032 with different heights in the height direction. The height of the first bottom wall 1031 may be lower than the height of the second bottom wall 1032. At least a portion of the first bottom wall 1031 forms the bottom surface of the liquid outlet chamber 2, and at least a portion of the second bottom wall 1032 forms the bottom surface of the intermediate chamber 4. The recessed portion 103 not only facilitates the replenishment of heat exchange medium from the intermediate chamber 4 to the liquid outlet chamber 2, but also reduces the space occupied by the housing 1, making the arrangement and installation of the housing 1 easier. In addition, this can increase the liquid level of the heat exchange medium to increase the liquid static pressure height, thereby reducing the gas generated by the heat exchange medium in the intermediate chamber 4 or facilitating the discharge of gas from the heat exchange medium located in the intermediate chamber 4.

[0106] Of course, such as Figure 3 , Figure 4 , Figure 8 , Figure 10 As shown, a portion of the first bottom wall 1031 can form the bottom surface of the liquid inlet chamber 3. That is, the bottom wall of both the liquid inlet chamber 3 and the bottom wall of the liquid outlet chamber 2 are lower than the bottom wall of the intermediate chamber 4. In this way, when the liquid storage device is working normally, the flow channel of the heat exchange medium can be located below the liquid surface, that is, a hidden flow channel is formed. This reduces the agitation amplitude of the liquid surface when the heat exchange medium flows, thereby reducing the gas generated by the agitation of the heat exchange medium during the flow process.

[0107] In embodiments of this disclosure, such as Figure 3 , Figure 4 , Figure 8 , Figure 10 As shown, the recessed portion 103 can make the projection of the housing 1 in the first direction A have an inverted "L" shape, so that the height of the bottom surface of the intermediate chamber 4 is higher than the height of the bottom surface of the liquid outlet chamber 2 and / or the liquid inlet chamber 3.

[0108] To maintain pressure balance inside the chamber, such as Figures 6 to 10 As shown, the gas inside the housing 1 can flow between two adjacent chambers 100. That is, the gas discharged from the heat exchange medium in each chamber 100 will flow towards the top of the housing 1 after the heat exchange medium is discharged and can flow between different chambers 100, so that when the gas pressure inside the housing 1 changes due to temperature, the gas in different chambers 100 can be discharged from the top of the housing 1, thereby maintaining the gas pressure balance inside the housing 1.

[0109] For example, such as Figures 6 to 10As shown, the box 1 may have an inlet chamber 3, an intermediate chamber 4 and an outlet chamber 2. The outlet chamber 2 is connected to the inlet chamber 3 through the intermediate chamber 4. The box 1 is provided with a connecting structure 8, which can be used to connect the inside and outside of the box 1. The connecting structure 8 is connected to at least one of the inlet chamber 3, the intermediate chamber 4 and the outlet chamber 2. The connecting structure 8 can connect the inside and outside of the box 1 when the air pressure inside the box 1 is too high, so as to maintain the air pressure balance inside the box 1. There can be one or more connecting structures 8. When there is one connecting structure 8, it can be set at the top of the box 1 and connected to one of the liquid inlet chamber 3, the intermediate chamber 4 and the liquid outlet chamber 2. In this way, when the air pressure inside the box 1 is too high, the connecting structure 8 can be opened and at least part of the gas in each chamber 100 can flow into the chamber with the connecting structure 8, so as to be discharged from the box 1 through the connecting structure 8, thereby maintaining the air pressure balance inside the box 1. Alternatively, there can be multiple connecting structures 8. When the number of connecting structures 8 is the same as the number of chambers 100, each chamber 100 can be provided with a connecting structure 8, so that when the air pressure inside the box 1 is too high, the gas in different chambers 100 can be discharged from the box 1 through the connecting structure 8 corresponding to the chamber 100, thereby maintaining the air pressure balance inside the box 1.

[0110] This disclosure will exemplarily illustrate the direction of gas flow within the housing 1 when a connecting structure 8 is provided.

[0111] For example, when the connecting structure 8 is installed on the inlet chamber 3 and the gas pressure inside the box 1 is high, the gas in the inlet chamber 3 can be directly discharged from the box 1 through the connecting structure 8; the gas in the intermediate chamber 4 can flow from the intermediate chamber 4 through the inlet chamber 3 and then be discharged from the box 1 through the connecting structure 8, or the gas in the intermediate chamber 4 can also flow from the intermediate chamber 4 through the outlet chamber 2 and then flow from the outlet chamber 2 into the inlet chamber 3, so as to be discharged from the box 1 through the connecting structure 8; the gas in the outlet chamber 2 can flow directly from the outlet chamber 2 into the inlet chamber 3 and then be discharged from the box 1 through the connecting structure 8, or the gas in the outlet chamber 2 can also flow from the outlet chamber 2 through the intermediate chamber 4 and then flow from the intermediate chamber 4 into the inlet chamber 3, so as to be discharged from the box 1 through the connecting structure 8.

[0112] When the connecting structure 8 is installed on the intermediate chamber 4 and the air pressure inside the box 1 is high, the gas in the intermediate chamber 4 can be directly discharged from the box 1 through the connecting structure 8; the gas in the liquid inlet chamber 3 can flow from the liquid inlet chamber 3 to the intermediate chamber 4 and then be discharged from the box 1 through the connecting structure 8, or the gas in the liquid inlet chamber 3 can also flow from the liquid inlet chamber 3 through the liquid outlet chamber 2 and then flow from the liquid outlet chamber 2 into the intermediate chamber 4, so as to be discharged from the box 1 through the connecting structure 8; the gas in the liquid outlet chamber 2 can flow directly from the liquid outlet chamber 2 into the intermediate chamber 4 and then be discharged from the box 1 through the connecting structure 8, or the gas in the liquid outlet chamber 2 can also flow from the liquid outlet chamber 2 through the liquid inlet chamber 3 and then flow from the liquid inlet chamber 3 into the intermediate chamber 4, so as to be discharged from the box 1 through the connecting structure 8.

[0113] When the connecting structure 8 is installed on the liquid outlet chamber 2 and the gas pressure inside the box 1 is high, the gas in the liquid outlet chamber 2 can be directly discharged from the box 1 through the connecting structure 8; the gas in the intermediate chamber 4 can enter the liquid outlet chamber 2 from the intermediate chamber 4 and then be discharged from the box 1 through the connecting structure 8, or the gas in the intermediate chamber 4 can also flow from the intermediate chamber 4 through the liquid inlet chamber 3 and then flow from the liquid inlet chamber 3 into the liquid outlet chamber 2, so as to be discharged from the box 1 through the connecting structure 8; the gas in the liquid inlet chamber 3 can directly enter the liquid outlet chamber 2 and then be discharged from the box 1 through the connecting structure 8, or the gas in the liquid inlet chamber 3 can also flow through the intermediate chamber 4 and then flow from the intermediate chamber 4 into the liquid outlet chamber 2, so as to be discharged from the box 1 through the connecting structure 8.

[0114] Among them, such as Figures 6 to 10 As shown, since the housing 1 is divided into multiple chambers 100 by the third partition 7, a second flow hole 711 can also be provided on the third partition 7 to facilitate the flow of gas between different chambers 100. The second flow hole 711 can be used for gas to flow between multiple chambers 100. The shape, number, and size of the second flow hole 711 can be adaptively adjusted according to the structure of the housing 1, and this disclosure does not impose specific limitations on this.

[0115] In addition, such as Figures 6 to 10As shown, since the housing 1 is provided with a first liquid level indicator 104 and a second liquid level indicator 105 at intervals along the height direction, and the first liquid level indicator 104 is located above the second liquid level indicator 105, in order to ensure that the gas in the housing 1 can flow between the chambers 100, the highest point of the second flow hole 711 is higher than the first liquid level indicator 104 in the height direction. This allows at least a portion of the second flow hole 711 to be located above the liquid surface of the heat exchange medium in the housing 1. Even if the liquid surface of the heat exchange medium in the housing 1 is at its highest point, that is, at the same height as the first liquid level indicator 104, the gas in the housing 1 can still flow through the second flow hole 711 in different chambers 100.

[0116] Of course, such as Figure 3 , Figure 4 , Figures 6 to 10 As shown, in order to ensure the pressure balance inside the box 1 is maintained when the air pressure inside the box 1 changes due to factors such as temperature, the connecting structure 8 can connect the inside and outside of the box 1. In the height direction, the connecting structure 8 can be higher than the first liquid level mark 104. In this way, even if the liquid level of the heat exchange medium inside the box 1 is at the highest point, that is, at the same height as the first liquid level mark 104, the gas inside the box 1 can still be discharged outside the box 1 through the connecting structure 8.

[0117] Among them, such as Figure 3 , Figure 4 , Figures 6 to 10 As shown, the connecting structure 8 may include an exhaust section 81, which is configured to open after the air pressure inside the housing 1 reaches a preset pressure. For example, the exhaust section 81 may include a pressure relief port disposed on the housing 1 and capable of communicating with any chamber 100 inside the housing 1, and a pressure relief valve connected to the pressure relief port. When the air pressure inside the housing 1 is in a normal state, the pressure relief valve can ensure the sealing of the housing 1. When the air pressure inside the housing 1 changes due to factors such as temperature, for example, when the air pressure inside the housing 1 is too high, the pressure relief valve will open to connect the inside and outside of the housing through the pressure relief port, thereby ensuring the air pressure balance inside the housing 1.

[0118] In addition, a liquid replenishment section 82 can be provided on the connecting structure 8. The liquid replenishment section 82 can be used to replenish the heat exchange medium into the tank 1. After the liquid storage device has been used for a certain period of time, a certain amount of heat exchange medium may be consumed, causing the liquid level of the heat exchange medium to be lower than the second liquid level indicator section 105. At this time, it is necessary to replenish the heat exchange medium into the tank 1 through the liquid replenishment section 82 until the liquid level of the heat exchange medium is between the first liquid level indicator section 104 and the second liquid level indicator section 105, thereby ensuring the normal use of the liquid storage device.

[0119] The liquid replenishment section 82 may include a liquid replenishment port located on the top of the housing 1 and a cover that can be connected to the liquid replenishment port. For example, the cover may be threaded to the liquid replenishment port. When the liquid level of the heat exchange medium in the housing 1 is between the first liquid level indicator 104 and the second liquid level indicator 105, the cover is connected to the liquid replenishment port to ensure the sealing of the housing 1. When it is necessary to replenish the liquid in the housing 1, the cover can be unscrewed and the heat exchange medium can be replenished into the housing 1 through the liquid replenishment port.

[0120] In the embodiments of this disclosure, the exhaust port of the exhaust section 81 and the replenishment port of the replenishment section 82 can be the same opening provided on the top of the housing 1. For example, the opening can extend to the outside of the housing 1 to form an opening wall. The inner side of the opening wall can be provided with a threaded structure, and the corresponding cover can also be provided with a mating thread that can cooperate with the threaded structure on the opening wall so that the two can be connected. The pressure relief valve can be provided outside the opening wall and communicate with the opening, thereby reducing the space occupied by the connecting structure 8.

[0121] Of course, the exhaust section 81 and the liquid replenishment section 82 can also be arranged alternately on the housing 1. Since the gas and liquid in the housing 1 can flow between different chambers 100, the alternately arranged exhaust section 81 and liquid replenishment section 82 can communicate with the same chamber 100 or with different chambers 100.

[0122] In some possible implementations, such as Figure 1 , Figure 2 , Figure 8 , Figure 10 As shown, since the heat exchange medium in the tank 1 will be consumed after the liquid storage device has been working for a certain period of time, in order to ensure that the staff can replenish the heat exchange medium in the tank 1 in a timely manner and avoid the heat exchange effect of the heat exchange device 11 of the thermal management system due to insufficient heat exchange medium, the tank 1 can also have a detection chamber 5. The detection chamber 5 can be connected to at least one other chamber 100 and is used to detect the liquid level of the heat exchange medium in the tank 1.

[0123] For example, such as Figure 1 , Figure 2 , Figure 8 , Figure 10As shown, the liquid storage device may also include a liquid level detection element 6, at least part of which may be located within the detection chamber 5. The liquid level detection element 6 may be a liquid level sensor with a probe and a display unit. The display unit of the liquid level sensor is located on the outside of the housing 1 and is connected to the probe located within the detection chamber 5. The probe can detect the liquid level height within the detection chamber 5 and transmit the detection result to the display unit. The display unit can display the specific liquid level height of the heat exchange medium in the detection chamber 5. Of course, the detection chamber 5 may also be equipped with a protective probe and a tank to stabilize the probe, thereby improving the detection accuracy of the probe. Thus, when the display unit shows that the liquid level height in the detection chamber 5 is lower than the normal liquid level height of the heat exchange medium, the operator can replenish the heat exchange medium into the housing 1 through the replenishment part 82 of the connecting structure 8.

[0124] In addition, the liquid level detection element 6 can also be a non-contact liquid level detection element 6 such as a capacitive liquid level sensor or an ultrasonic liquid level gauge, and this disclosure does not make specific limitations in this regard.

[0125] Among them, such as Figure 1 , Figure 2 , Figure 8 , Figure 10 As shown, since the chamber 1 can have an inlet chamber 3 and an intermediate chamber 4, and the inlet chamber 3 is connected to the outlet chamber 2 through the intermediate chamber 4, the detection chamber 5 can be connected to at least one of the inlet chamber 3, the intermediate chamber 4 and the outlet chamber 2 to accurately detect the heat exchange medium in the chamber 1 when the liquid level is measured. For example, the detection chamber 5 can be connected only to the intermediate chamber 4, meaning that part of the heat exchange medium in the intermediate chamber 4 can flow to the outlet chamber 2, and part of the heat exchange medium can flow to the detection chamber 5, so that the detection chamber 5 can detect the heat exchange medium in the housing 1. In addition, it should be noted that the outlet chamber 2 can also be connected to the detection chamber 5, meaning that the detection chamber 5 can be connected to both the intermediate chamber 4 and the outlet chamber 2. This allows the detection chamber 5 and the outlet chamber 2 to be at the same liquid level, thereby improving the detection accuracy of the detection chamber 5; and it also allows the heat exchange medium in the detection chamber 5 to flow directly to the outlet chamber 2, thereby improving the utilization rate of the heat exchange medium.

[0126] In embodiments of this disclosure, such as Figures 1 to 4 , Figure 8 , Figure 10As shown, the inlet chamber 3, the detection chamber 5, and the outlet chamber 2 can be arranged side-by-side along the first direction A to form a first row of chambers 200. Multiple intermediate chambers 4 are arranged side-by-side along the first direction A to form a second row of chambers 300. The first row of chambers 200 and the second row of chambers 300 are arranged side-by-side along the second direction B. In this way, the bottom wall height of the intermediate chambers 4 can be higher than the bottom wall heights of the inlet chambers 3, the detection chambers 5, and the outlet chambers 2. Therefore, the arrangement of the first row of chambers 200 and the second row of chambers 300 allows the recessed portion 103 of the housing 1 to form an inverted "L"-shaped notch in the first direction A, thereby reducing the space occupied by the housing 1 while increasing the liquid level in the intermediate chambers 4. This makes the structure of the housing 1 and the layout of the chambers 100 within the housing 1 more rational.

[0127] In some possible implementations, such as Figure 1 , Figure 2 , Figure 8 , Figure 10 As shown, the liquid storage device may also include a temperature sensor 10, which is installed on the housing 1 to monitor the temperature of the heat exchange medium inside the housing 1. In this way, the temperature of the heat exchange medium can be adjusted in a timely manner when it is too high or too low, so as to prevent the excessively high or low temperature of the heat exchange medium from affecting its own heat exchange performance or damaging the housing 1 and heat exchange branch 12 and other components, thereby affecting the service life of the components in the thermal management system.

[0128] A second aspect of this disclosure provides a thermal management system that includes the aforementioned liquid storage device. The thermal management system possesses all the beneficial effects of the aforementioned liquid storage device, which will not be elaborated further herein.

[0129] In embodiments of this disclosure, such as Figure 11 As shown, the thermal management system may also include multiple heat exchange branches 12, and each outlet 102 of the liquid storage device exchanges heat with the corresponding heat exchange device 11 through the corresponding heat exchange branch 12. When heat exchange with the heat exchange device 11 is required, the heat exchange medium in the housing 1 flows to the heat exchange branch 12 corresponding to the heat exchange device 11, thereby exchanging heat with the corresponding heat exchange device 11. In addition, since there are multiple heat exchange branches 12, the thermal management system can exchange heat with multiple heat exchange devices 11 at the same time, thereby improving the heat exchange efficiency of the thermal management system for the heat exchange devices 11.

[0130] To ensure that each heat exchange branch 12 has a sufficient amount of heat exchange medium, such as Figure 11 As shown, each heat exchange branch 12 can be equipped with a pump device 13. Each pump device 13 acts independently on one heat exchange branch 12, so that the pump device 13 can draw a sufficient amount of heat exchange medium from the liquid storage device to ensure the heat exchange effect of the heat exchange device 11.

[0131] The pumps 13 have different power ratings. This allows operators to match pumps 13 with different power ratings to the heat exchanger 11 based on its characteristics. For example, a higher-powered pump 13 can be connected to a heat exchanger 11 with a higher heat output, while a lower-powered pump 13 can be connected to a heat exchanger 11 with a lower heat output. This improves the heat exchange efficiency of the heat exchange medium in the thermal management system.

[0132] In embodiments of this disclosure, the thermal management system may further include a heat exchanger 14, the inlet of which may be connected to a heat exchange branch 12, and the outlet of the heat exchanger 14 may be connected to the liquid inlet 101 of the housing 1. Thus, the heat exchange medium, after exchanging heat with the heat exchange device 11, can enter the heat exchanger 14 through the heat exchange branch 12 to exchange heat with the heat exchanger 14 and then flow back into the liquid storage device to circulate within the thermal management system.

[0133] For example, the heat exchange device 11 in the thermal management system may include at least one of a charging pile, a charging gun, a charging host converter, and an energy storage module.

[0134] In addition, each heat exchange branch 12 can be equipped with a valve body, which can open different heat exchange branches 12 as needed to exchange heat with different heat exchange devices 11.

[0135] In summary, this disclosure exemplarily illustrates the working principle of a water tank.

[0136] When the heat exchange medium enters the tank 1 through the liquid inlet 101, since the liquid inlet 101 is located below the second liquid level indicator 105, it can directly enter the interior of the heat exchange medium in the tank 1. This reduces the agitation amplitude of the heat exchange medium during flow. The heat exchange medium passing through the liquid inlet chamber 3 can sequentially enter multiple intermediate chambers 4 and multiple liquid outlet chambers 2.

[0137] The bottom wall of the intermediate chamber 4 can be higher than the bottom wall of the outlet chamber 2, and can be set one-to-one with the outlet chamber 2. The intermediate chamber 4 can stabilize the heat exchange medium and reduce the gas in the heat exchange medium. The intermediate chamber 4 can replenish the heat exchange medium to the outlet chamber 2 in a timely manner. This reduces the gas in the heat exchange medium and avoids the gas blockage in the heat exchange branch 12 connected to the housing 1. At the same time, it replenishes the outlet chamber 2 with a sufficient amount of heat exchange medium in a timely manner, reducing or even avoiding the situation where the pump device 13 runs dry and sucks air due to insufficient heat exchange medium in the outlet chamber 2. In addition, this setting can also improve the problem of uneven flow when replenishing the heat exchange medium to the outlet chamber 2.

[0138] The arrangement of multiple outlet chambers 2 allows for a one-to-one correspondence between the heat exchange branch 12, which has a pump device 13 and is connected to the outlet port 102 of the outlet chamber 2, and the outlet chamber 2. This improves or even avoids the problem of water competition caused by different power levels of the pump devices 13 on the heat exchange branch 12, leading to a decrease in the liquid supply efficiency of the storage device. Based on this, the flow rate of the heat exchange medium in each heat exchange branch 12 and the heat exchange effect of the heat exchange medium on the heat exchange device 11 to be heat exchanged are guaranteed. In addition, this also allows for simultaneous heat exchange on multiple heat exchange devices 11 to be heat exchanged, thereby improving the heat exchange efficiency of the thermal management system for the heat exchange devices 11.

[0139] In addition, the arrangement of the first partition 9a and the second partition 9b can reduce the flow area of ​​the heat exchange medium in the box 1 and can physically limit the agitation of the heat exchange medium in the box 1, thereby ensuring the stability of the heat exchange medium in the box 1 during flow. As a result, the gas generated when the heat exchange medium flows in the box 1 can be reduced.

[0140] Furthermore, the lowest point of the first flow hole 712 on the third partition 7 can be lower than the second liquid level mark 105. Thus, when the heat exchange medium flows between the chambers 100, its flow channel can be located below the liquid surface of the heat exchange medium, that is, the main flow area of ​​the heat exchange medium is located below its liquid surface, so as to form a dark flow in the heat exchange medium, thereby reducing the agitation amplitude of the heat exchange medium when it flows between the chambers 100, thereby reducing the gas generated when the heat exchange medium flows in the box 1.

[0141] In addition, the installation of the detection chamber 5, the liquid level detection element 6, and the temperature sensor 10 can monitor the condition of the heat exchange medium inside the chamber 1 and make timely adjustments to the heat exchange medium or the entire heat exchange system.

[0142] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0143] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0144] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A liquid storage device, characterized in that, The box includes a liquid inlet and multiple liquid outlets, and the box has multiple chambers. The plurality of chambers includes a liquid outlet chamber, which is connected to the plurality of liquid outlets, or... The plurality of chambers includes a plurality of liquid outlet chambers, and one liquid outlet chamber is connected to at least one of the liquid outlets; The multiple liquid outlets are used to connect to different heat exchange branches, and different heat exchange branches are equipped with pump devices of different power.

2. The liquid storage device according to claim 1, characterized in that, The heat exchange branch is used to exchange heat with the heat exchange device of the charging system.

3. The liquid storage device according to claim 1, characterized in that, The diameters of the different outlets are different.

4. The liquid storage device according to claim 1, characterized in that, The box body has at least two liquid outlet chambers, and each liquid outlet chamber is provided with a liquid outlet.

5. The liquid storage device according to any one of claims 1-4, characterized in that, The box body also has a liquid inlet chamber, and the liquid outlet chamber is connected to the liquid inlet chamber. The liquid inlet chamber is provided with the liquid inlet.

6. The liquid storage device according to claim 5, characterized in that, The box also has an intermediate chamber, and the liquid outlet chamber is connected to the liquid inlet chamber through the intermediate chamber.

7. The liquid storage device according to claim 6, characterized in that, The heat exchange medium inside the box can flow from the inlet chamber through the intermediate chamber and then be discharged through the outlet of the outlet chamber.

8. The liquid storage device according to claim 6, characterized in that, The liquid storage device further includes a first partition, and the intermediate chamber is divided into a first intermediate sub-chamber and a second intermediate sub-chamber by the first partition. The second intermediate sub-chamber is located below the first intermediate sub-chamber. The first intermediate sub-chamber is connected to the liquid outlet chamber and the second intermediate sub-chamber. Both the first intermediate sub-chamber and the second intermediate sub-chamber are connected to the liquid inlet chamber.

9. The liquid storage device according to claim 8, characterized in that, The heat exchange medium inside the chamber can flow from the inlet chamber through the second intermediate sub-chamber and then into the outlet chamber; and / or, The heat exchange medium can flow from the inlet chamber through the first intermediate sub-chamber and then into the outlet chamber; and / or The heat exchange medium can flow from the inlet chamber through the first intermediate sub-chamber and the second intermediate sub-chamber before entering the outlet chamber.

10. The liquid storage device according to claim 8, characterized in that, The first partition is provided with a first communication port connecting the first intermediate sub-chamber and the second intermediate sub-chamber.

11. The liquid storage device according to claim 8, characterized in that, The liquid outlet chamber is divided into a first liquid outlet sub-chamber and a second liquid outlet sub-chamber located below the first liquid outlet sub-chamber by a second partition. The first liquid outlet sub-chamber is connected to the first intermediate sub-chamber and the second liquid outlet sub-chamber, and the second liquid outlet sub-chamber is connected to the second intermediate sub-chamber and the liquid outlet.

12. The liquid storage device according to claim 11, characterized in that, The first partition and the second partition are the same partition.

13. The liquid storage device according to claim 11, characterized in that, The heat exchange medium inside the chamber can flow from the inlet chamber through the second intermediate sub-chamber and then into the second outlet sub-chamber; and / or, The heat exchange medium can flow from the inlet chamber through the first intermediate sub-chamber and the first outlet sub-chamber into the second outlet sub-chamber; and / or The heat exchange medium can flow from the inlet chamber through the first intermediate sub-chamber and the second intermediate sub-chamber before entering the second outlet sub-chamber.

14. The liquid storage device according to claim 11, characterized in that, The second partition is provided with a second communication port connecting the first liquid outlet chamber and the second liquid outlet chamber.

15. The liquid storage device according to any one of claims 8-14, characterized in that, The housing is divided into multiple chambers by multiple third partitions, each third partition including a first flow hole for the heat exchange medium inside the housing to flow between the multiple chambers.

16. The liquid storage device according to claim 15, characterized in that, The first flow hole includes a first flow hole portion and a second flow hole portion. In the height direction, the first flow hole portion is located above the first partition plate, and the second flow hole portion is located below the first partition plate.

17. The liquid storage device according to claim 15, characterized in that, The tank body is provided with a first liquid level indicator and a second liquid level indicator at intervals along the height direction, with the first liquid level indicator located above the second liquid level indicator. In the vertical direction, the lowest point of the first flow hole is lower than the second liquid level indicator.

18. The liquid storage device according to claim 8, characterized in that, The tank is provided with a first liquid level indicator and a second liquid level indicator at intervals along the height direction. The first liquid level indicator is located above the second liquid level indicator. In the height direction, the first partition is located between the first liquid level indicator and the second liquid level indicator.

19. The liquid storage device according to claim 17 or 18, characterized in that, The first liquid level indicator and the second liquid level indicator are used to indicate the limit liquid level height of the heat exchange medium in the tank when the liquid storage device is working normally.

20. The liquid storage device according to claim 19, characterized in that, In the vertical direction, the liquid inlet is located below the second liquid level indicator.

21. The liquid storage device according to claim 6, characterized in that, The number of liquid inlet chambers is one or more, and each liquid inlet chamber is connected to at least one of the intermediate chambers.

22. The liquid storage device according to claim 6, characterized in that, The number of intermediate chambers is one or more, and each intermediate chamber is connected to at least one of the liquid outlet chambers.

23. The liquid storage device according to claim 6, characterized in that, The volume of the intermediate chamber is larger than that of the liquid outlet chamber.

24. The liquid storage device according to claim 6, characterized in that, The area of ​​the intermediate chamber projected along the height direction is greater than the area of ​​the liquid outlet chamber projected along the height direction.

25. The liquid storage device according to claim 6, characterized in that, The area of ​​the gas-liquid interface in the intermediate chamber is larger than the area of ​​the gas-liquid interface in the liquid outlet chamber.

26. The liquid storage device according to claim 1, characterized in that, The box also has an intermediate chamber, and the liquid outlet chamber is connected to the liquid inlet chamber of the box through the intermediate chamber. In the height direction, the bottom surface of the intermediate chamber is higher than the bottom surface of the liquid outlet chamber and / or the liquid inlet chamber.

27. The liquid storage device according to claim 26, characterized in that, The housing includes a recessed portion that is recessed towards the housing, the recessed portion causing the housing to form a first bottom wall and a second bottom wall with different heights in the height direction, the height of the first bottom wall being lower than the height of the second bottom wall, at least a portion of the first bottom wall forming the bottom surface of the liquid outlet chamber, and at least a portion of the second bottom wall forming the bottom surface of the intermediate chamber.

28. The liquid storage device according to claim 27, characterized in that, Part of the first bottom wall forms the bottom surface of the liquid inlet chamber.

29. The liquid storage device according to claim 26, characterized in that, The projection of the housing in the first direction is an inverted "L" shape, such that the height of the bottom surface of the intermediate chamber is higher than the height of the bottom surface of the liquid outlet chamber and / or the liquid inlet chamber.

30. The liquid storage device according to claim 1, characterized in that, The gas inside the box can flow between two adjacent chambers.

31. The liquid storage device according to claim 30, characterized in that, The housing also has an inlet chamber and an intermediate chamber. The outlet chamber is connected to the inlet chamber through the intermediate chamber. The housing is provided with a connecting structure for connecting the inside and outside of the housing. The connecting structure is connected to at least one of the inlet chamber, the intermediate chamber, and the outlet chamber.

32. The liquid storage device according to claim 31, characterized in that, The connecting structure is connected to the liquid outlet chamber. The gas can flow from the inlet chamber through the intermediate chamber and then into the outlet chamber; and / or The gas can enter the outlet chamber from the inlet chamber; and / or The gas can enter the liquid outlet chamber from the intermediate chamber; and / or The gas can flow from the intermediate chamber through the inlet chamber and then into the outlet chamber.

33. The liquid storage device according to claim 30 or 31, characterized in that, The housing is divided into multiple chambers by a third partition, and a second flow hole is provided on the third partition for the gas to flow between the multiple chambers.

34. The liquid storage device according to claim 33, characterized in that, The tank body is provided with a first liquid level indicator and a second liquid level indicator at intervals along the height direction, with the first liquid level indicator located above the second liquid level indicator. In terms of height, the highest point of the second flow hole is higher than the first liquid level indicator.

35. The liquid storage device according to claim 31, characterized in that, The tank body is provided with a first liquid level indicator and a second liquid level indicator at intervals along the height direction, with the first liquid level indicator located above the second liquid level indicator. In the vertical direction, the connecting structure is higher than the first liquid level indicator.

36. The liquid storage device according to claim 31, characterized in that, The communication structure includes an exhaust section, which is configured to open when the air pressure inside the box reaches a preset pressure.

37. The liquid storage device according to claim 36, characterized in that, The connecting structure is provided with a liquid replenishment section, which is used to replenish the heat exchange medium into the tank.

38. The liquid storage device according to claim 1, characterized in that, The chamber has a detection chamber that communicates with at least one other chamber and is used to detect the liquid level of the heat exchange medium inside the chamber.

39. The liquid storage device according to claim 38, characterized in that, The liquid storage device further includes a liquid level detection element, at least a portion of which is located within the detection chamber.

40. The liquid storage device according to claim 38, characterized in that, The box also includes an inlet chamber and an intermediate chamber, the inlet chamber being connected to the outlet chamber via the intermediate chamber. The detection chamber is connected to at least one of the liquid inlet chamber, the intermediate chamber, and the liquid outlet chamber.

41. The liquid storage device according to claim 40, characterized in that, The inlet chamber, the detection chamber, and the outlet chamber are arranged side by side along a first direction to form a first row of chambers. A plurality of intermediate chambers are arranged side by side along a first direction to form a second row of chambers. The first row of chambers and the second row of chambers are arranged side by side along a second direction.

42. The liquid storage device according to claim 1, characterized in that, The liquid storage device also includes a temperature sensor, which is installed on the tank to monitor the temperature of the heat exchange medium inside the tank.

43. A thermal management system, characterized in that, The liquid storage device includes any one of claims 1-42.

44. The thermal management system according to claim 43, characterized in that, The thermal management system further includes multiple heat exchange branches, and each of the liquid outlets of the liquid storage device exchanges heat with the corresponding heat exchange device through the corresponding heat exchange branch.

45. The thermal management system according to claim 44, characterized in that, Each of the heat exchange branches is equipped with a pump device.

46. ​​The thermal management system according to claim 45, characterized in that, The power of each pump device is different.

47. The thermal management system according to claim 44, characterized in that, The thermal management system also includes a heat exchanger, the inlet of which is connected to the heat exchange branch, and the outlet of which is connected to the liquid inlet of the housing.

48. The thermal management system according to claim 44, characterized in that, The heat exchange device includes at least one of a charging pile, a charging gun, a charging host converter, and an energy storage module.

Images