Liquid cooling dehumidification device of battery module

Abstract

The utility model relates to a liquid cooling dehumidification device of a battery module. Relates to the technical field of new energy batteries. The device specifically comprises a liquid cooling plate arranged on the outer side of a battery cell, a condenser arranged on one side of a battery compartment, a liquid inlet pipe communicating the liquid cooling plate with the condenser, a cooling assembly arranged in the condenser, and a liquid storage assembly arranged at the bottom of the condenser; the liquid inlet pipe conveys a liquid cooling medium of the condenser to the liquid cooling plate, and the condenser communicates with the battery compartment through a pipeline to form a circulation path for air dehumidification. The condenser is communicated with the liquid cooling plate through the liquid inlet pipe, the cooling assembly is arranged in the condenser, a liquid cooling medium in the condenser is conveyed to the liquid cooling plate through the liquid inlet pipe to carry out liquid cooling treatment on the battery cell, and air flowing through the condenser is cooled through the cooling assembly, so that moisture in the air is liquefied, and the liquid cooling effect is improved. Therefore, cooling and dehumidification of the battery compartment are realized, and the performance, safety and service life of the battery module are ensured.

Description

Technical Field

[0001] This utility model relates to the field of new energy battery technology, and in particular to a liquid cooling system for battery modules.

[0002] Wet device. Background Technology

[0003] Currently, the power battery industry mostly uses multiple cells arranged in parallel in a row and installed in a battery compartment. The arranged cells are then fixed by end plates and side plates to form a battery module, which is widely used in electric vehicles, electric vehicles, and even energy storage power stations.

[0004] During the energy storage process, battery modules generate heat, requiring heat dissipation to lower the temperature inside the battery compartment. However, considering the lifespan and energy consumption of the battery modules, the coolant temperature for cooling the battery modules is required to be around 25°C. At this temperature, the water condensation temperature cannot be reached, thus preventing the condensation of moisture in the air and hindering dehumidification within the battery compartment.

[0005] The positive and negative electrodes of the battery cells in the battery compartment are easily corroded by water. When exposed to a humid environment for a long time, the moisture in the air can easily corrode the positive and negative electrodes of the battery cells, shortening the lifespan of the battery module or causing damage. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of the prior art by providing a liquid cooling and dehumidification device for battery modules. This device can both liquid cool the battery to improve its heat dissipation performance and dehumidify it, thereby ensuring the performance, safety, and lifespan of the battery module.

[0007] This utility model proposes a liquid-cooled dehumidification device for a battery module, including a liquid-cooled plate disposed on the outside of the battery cell, a condenser disposed on one side of the battery compartment, a liquid inlet pipe connecting the liquid-cooled plate and the condenser, a cooling component disposed in the condenser, and a liquid storage component disposed at the bottom of the condenser; the liquid inlet pipe delivers the liquid cooling medium of the condenser to the liquid-cooled plate, the condenser and the battery compartment are connected by a pipeline to form an air dehumidification circulation path, the cooling component cools the air in the condenser, and the liquid storage component stores and recovers the condensate in the condenser.

[0008] Furthermore, the condenser includes a condenser inner tube extending vertically and a liquid-cooled outer tube disposed outside the condenser inner tube. The liquid inlet pipe connects the liquid-cooled outer tube to the liquid-cooled plate. The cooling component is disposed in the condenser inner tube, and the liquid storage component is disposed at the bottom of the condenser inner tube.

[0009] Furthermore, one side of the condenser inner tube is provided with an air inlet for communicating with the battery compartment, an air outlet for communicating with the condenser inner tube and the battery compartment, and a fan provided at the air outlet.

[0010] Furthermore, the air outlet is located above the air inlet, the air inlet is inclined downwards, and the angle between the air inlet and the condenser inner tube is 5 to 10°.

[0011] Furthermore, one side of the liquid cooling outer tube is provided with an inlet for inputting liquid cooling medium and an outlet for outputting liquid cooling medium.

[0012] Furthermore, the cooling component consists of multiple heat sinks arranged alternately within the condenser inner tube.

[0013] Furthermore, the plurality of heat sinks are arranged at a downward angle in the inner condenser tube, and the angle of inclination of the heat sinks is the same as the angle of inclination of the air inlet.

[0014] Furthermore, the liquid storage assembly includes a liquid storage tank located at the bottom of the condenser inner tube, and a drainage conduit communicating with the liquid storage tank.

[0015] Furthermore, the liquid storage assembly also includes a one-way valve located at the bottom of the liquid storage tank, the one-way valve being situated at the connection point between the drainage conduit and the liquid storage tank.

[0016] Furthermore, the storage tank is provided with an oil seal layer, which is used to isolate the condensate entering the storage tank from the water vapor in the outside.

[0017] The liquid-cooled dehumidification device for a battery module proposed in this utility model has the following beneficial effects:

[0018] (1) This device includes a liquid cooling plate, a condenser and a liquid inlet pipe. The liquid cooling plate is located on the outside of the battery cell, the condenser is located on one side of the battery cell, and the liquid inlet pipe connects the condenser and the liquid cooling plate. The liquid cooling medium in the condenser is then transported to the liquid cooling plate through the liquid inlet pipe, and the battery cell is then liquid cooled by the liquid cooling plate to ensure the performance, safety and service life of the battery module.

[0019] (2) This device also includes a cooling component and a liquid storage component. The cooling component is installed in the condenser, and the liquid storage component is installed at the bottom of the condenser. The condenser and the battery compartment are connected by a pipeline to form a circulation path for air dehumidification. When the air in the battery compartment flows through the condenser, the cooling component cools the air and liquefies the moisture in the air. The liquefied condensate in the condenser flows along the pipe wall of the condenser to the liquid storage component for storage and recycling, thereby dehumidifying the battery compartment and further ensuring the performance, safety and service life of the battery module.

[0020] (3) The condenser of this device includes an inner condenser tube and an outer liquid-cooled tube. The liquid inlet tube connects the outer liquid-cooled tube to the liquid-cooled plate. The cooling component is set in the inner condenser tube, thereby cooling the battery cell through the liquid-cooled plate. The cooling component cools the air flowing through the inner condenser tube, thereby achieving cooling and dehumidification of the battery compartment and ensuring the performance, safety and service life of the battery module.

[0021] (4) An air inlet, an air outlet and a fan are provided on one side of the condenser inner tube of this device. By starting the fan, the air in the battery compartment is driven to enter the condenser inner tube through the air inlet. The air is then cooled by the cooling component located in the condenser inner tube, causing the moisture in the air to liquefy. The dehumidified air then flows back into the battery compartment through the air outlet, thereby achieving dehumidification of the battery compartment and further ensuring the performance, safety and service life of the battery module.

[0022] (5) The condenser tube of this device extends vertically upward. When the air inlet is tilted downward, the angle between the air inlet and the condenser tube is 5 to 10°, which further prevents the condensate from flowing back into the battery compartment from the air inlet when it flows downward along the tube wall of the condenser tube, thus ensuring the dehumidification effect of the battery compartment.

[0023] (6) The cooling component of this device consists of multiple heat sinks, which are arranged alternately in the inner tube of the condenser. When the air in the battery compartment is drawn into the inner tube of the condenser through the air inlet, it flows upward in the inner tube of the condenser and comes into contact with the air through the multiple heat sinks arranged alternately in the inner tube of the condenser, so that the moisture in the air is liquefied.

[0024] (7) The multiple heat sinks of this device are tilted downward to guide the liquefied condensate, so that the condensate flows down the pipe wall of the inner tube of the condenser at an accelerated speed until it is stored and recycled in the liquid storage component, thereby achieving dehumidification of the battery compartment and further ensuring the performance, safety and service life of the battery module.

[0025] (8) The liquid storage component of this device also includes a one-way valve. The one-way valve is located at the bottom of the liquid storage tank. The drainage pipe is connected to the bottom of the liquid storage tank. Therefore, the one-way valve is located at the connection between the drainage pipe and the liquid storage tank. When the one-way valve is closed, the condensate in the condenser tube flows to the liquid storage tank for storage. When a certain amount of condensate is stored in the liquid storage tank, the one-way valve opens, allowing the condensate in the liquid storage tank to be discharged through the drainage pipe for recycling, thereby making the device more practical.

[0026] (9) The storage tank of this device is equipped with an oil seal layer. Since the density of condensate is greater than that of the oil seal layer, the condensate in the inner condenser tube enters the storage tank and is located below the oil seal layer. Thus, the oil seal layer isolates the condensate entering the storage tank from the air entering the inner condenser tube and the storage tank, thereby preventing the condensate stored in the storage tank from mixing with the air entering the inner condenser tube and the storage tank, which would affect the dehumidification effect of this device on the battery module. Attached Figure Description

[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to denote similar elements.

[0028] Figure 1 This is a schematic diagram of the structure of a liquid cooling dehumidification device for a battery module according to an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of a liquid cooling dehumidification device for a battery module according to an embodiment of the present invention, in which the cooling component is installed in the condenser.

[0030] Figure 3 This is a schematic diagram of the liquid storage component of a liquid-cooled dehumidification device for a battery module according to an embodiment of the present invention.

[0031] In the diagram: 1. Battery compartment; 11. Battery cell; 2. Liquid cooling plate; 3. Condenser; 31. Inner condenser tube; 32. Outer liquid cooling tube; 33. Air inlet; 34. Air outlet; 35. Fan; 36. Liquid inlet; 37. Liquid outlet; 4. Liquid inlet pipe; 5. Cooling component; 51. Heat sink; 6. Liquid storage component; 61. Liquid storage tank; 611. Oil seal layer; 62. Drainage conduit; 63. One-way valve. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0033] Please see Figures 1-3A liquid cooling dehumidification device for a battery module according to an embodiment of the present invention includes a liquid cooling plate 2 disposed on the outside of the battery cell 11, a condenser 3 disposed on one side of the battery compartment 1, a liquid inlet pipe 4 connecting the liquid cooling plate 2 and the condenser 3, a cooling component 5 disposed in the condenser 3, and a liquid storage component 6 disposed at the bottom of the condenser 3; the liquid inlet pipe 4 transports the liquid cooling medium of the condenser 3 to the liquid cooling plate 2, the condenser 3 and the battery compartment 1 are connected by a pipeline to form a circulation path for air dehumidification, the cooling component 5 cools the air in the condenser 3, and the liquid storage component 6 stores and recovers the condensate in the condenser 3.

[0034] In this application, the battery module includes a battery compartment 1 and multiple battery cells 11 disposed in the battery compartment 1. The liquid cooling dehumidification device includes a liquid cooling plate 2, a condenser 3 and a liquid inlet pipe 4. The liquid cooling plate 2 is disposed on the outside of the battery cells 11, the condenser 3 is disposed on one side of the battery compartment 1, and the liquid inlet pipe 4 connects the condenser 3 and the liquid cooling plate 2, thereby transporting the liquid cooling medium in the condenser 3 to the liquid cooling plate 2 through the liquid inlet pipe 4, and then performing liquid cooling treatment on the battery cells 11 through the liquid cooling plate 2 to ensure the performance, safety and service life of the battery module.

[0035] It is foreseeable that, in this application, the liquid-cooled dehumidification device also includes a return pipe connecting the liquid-cooled plate 2 and the condenser 3. The liquid cooling medium in the condenser 3 is transported to the liquid-cooled plate 2 through the inlet pipe 4. When the liquid cooling medium flows through the liquid-cooled plate 2, it exchanges heat with the battery cell 11 wrapped by the liquid-cooled plate 2, thereby dissipating heat from the battery cell 11. After heat exchange, the liquid cooling medium flows back to the condenser 3 through the return pipe and is finally discharged from the condenser 3. Specifically, in actual implementation, the liquid cooling medium can be a liquid such as water or an aqueous solution of ethylene glycol.

[0036] In this application, the liquid-cooled dehumidification device further includes a cooling component 5 and a liquid storage component 6. The cooling component 5 is disposed in the condenser 3, and the liquid storage component 6 is disposed at the bottom of the condenser 3. The condenser 3 and the battery compartment 1 are connected by a pipeline to form an air dehumidification circulation path. The air with high humidity in the battery compartment 1 is transported to the condenser 3 through the circulation path. The cooling component 5 cools the air, causing the moisture in the air to liquefy. The liquefied condensate in the condenser 3 flows along the pipe wall of the condenser 3 to the liquid storage component 6 for storage and recovery. The dehumidified air then flows back to the battery compartment 1 through the circulation path, thereby achieving dehumidification of the battery compartment 1 and further ensuring the performance, safety, and service life of the battery module.

[0037] In this embodiment, the condenser 3 includes a vertically arranged inner condenser tube 31 and a liquid-cooled outer tube 32 disposed outside the inner condenser tube 31. A liquid inlet pipe 4 connects the liquid-cooled outer tube 32 to the liquid-cooled plate 2. A cooling assembly 5 is disposed within the inner condenser tube 31, and a liquid storage assembly 6 is disposed at the bottom of the inner condenser tube 31. In this application, the condenser 3 includes an inner condenser tube 31 and a liquid-cooled outer tube 32. The inner condenser tube 31 extends vertically along one side of the battery compartment 1, and the liquid-cooled outer tube 32 is disposed outside the inner condenser tube 31.

[0038] The liquid inlet pipe 4 connects the liquid cooling outer pipe 32 to the liquid cooling plate 2, so that the liquid cooling medium flowing into the liquid cooling outer pipe 32 is transported to the liquid cooling plate 2 through the liquid inlet pipe 4. The liquid cooling plate 2 surrounds the outside of the cell 11, so that the liquid cooling medium flowing through the liquid cooling plate 2 exchanges heat with the cell 11, thereby improving the heat dissipation performance of the battery and ensuring the performance, safety and service life of the battery module.

[0039] The cooling component 5 is installed in the inner condenser tube 31, and the liquid storage component 6 is installed at the bottom of the inner condenser tube 31. This allows the air in the battery compartment 1 to flow through the inner condenser tube 31 and then back into the battery compartment 1. During this process, the cooling component 5 cools the air flowing through the inner condenser tube 31, causing the moisture in the air to liquefy. The liquefied condensate flows along the tube wall of the inner condenser tube 31 to the liquid storage component 6 for storage and recycling, thereby achieving dehumidification of the battery compartment 1 and further ensuring the performance, safety, and service life of the battery module.

[0040] In this embodiment, one side of the condenser inner tube 31 is provided with an air inlet 33 for communicating with the battery compartment 1, an air outlet 34 for communicating with the condenser inner tube 31 and the battery compartment 1, and a fan 35 provided at the air outlet 34. In this application, one side of the condenser inner tube 31 is provided with an air inlet 33 and an air outlet 34. The pipeline connecting the condenser 3 and the battery compartment 1 is connected to the interior of the condenser inner tube 31 through the air inlet 33 and the air outlet 34, thereby forming an air dehumidification circulation path between the condenser 3 and the battery compartment 1.

[0041] A fan 35 is installed at the air outlet 34. After the fan 35 is started, it generates negative pressure, causing the high humidity air in the battery compartment 1 to flow in the circulation path. That is, the air enters the condenser inner tube 31 through the air inlet 33, flows in the condenser inner tube 31 towards the air outlet 34, flows out of the condenser inner tube 31 through the air outlet 34, and finally flows back to the battery compartment 1.

[0042] When the humid air in the battery compartment 1 flows through the condenser inner tube 31, the cooling component 5 located in the condenser inner tube 31 cools the air, causing the moisture in the air to liquefy. The liquefied condensate flows along the tube wall of the condenser inner tube 31 to the liquid storage component 6 for storage and recycling. The dehumidified air then flows out of the condenser inner tube 31 through the air outlet 34 and flows back into the battery compartment 1 through the circulation path, thereby achieving dehumidification of the battery compartment 1 and further ensuring the performance, safety and service life of the battery module.

[0043] Furthermore, in this embodiment, the air inlet 33 is inclined downwards, and the angle between the air inlet 33 and the condenser inner tube 31 is 5-10°. As mentioned in the previous embodiment, the liquefied condensate flows along the tube wall of the condenser inner tube 31 to the liquid storage assembly 6 for storage and recovery.

[0044] Therefore, in this application, the air outlet 34 is positioned above the air inlet 33, so that the air drawn from the battery compartment 1 to the condenser inner tube 31 through the air inlet 33 flows upward in the condenser inner tube 31, while the condensate formed by the liquefaction of moisture in the air flows downward along the tube wall of the condenser inner tube 31, thereby preventing the dehumidified air from coming into contact with the condensate and affecting the dehumidification effect.

[0045] Furthermore, since the liquefied condensate flows downward along the wall of the inner condenser tube 31, and the air inlet 33 penetrates the wall of the inner condenser tube 31 on one side, connecting the battery compartment 1 with the inner condenser tube 31, in this application, the air inlet 33 is inclined downward to prevent the condensate from flowing back into the battery compartment 1 from the air inlet 33 when it flows downward along the wall of the inner condenser tube 31, thus affecting the dehumidification effect of the battery compartment 1.

[0046] Specifically, in this application, the condenser inner tube 31 extends vertically upward, and the air inlet 33 is tilted downward, so that the angle between the air inlet 33 and the condenser inner tube 31 is 5 to 10°, thereby further preventing condensate from flowing back into the battery compartment 1 from the air inlet 33 when it flows downward along the tube wall of the condenser inner tube 31, thus ensuring the dehumidification effect of the battery compartment 1.

[0047] In this embodiment, the liquid-cooled outer tube 32 is provided with an inlet 36 for inputting liquid cooling medium and an outlet 37 for outputting liquid cooling medium on one side. In this application, the liquid-cooled outer tube 32 is provided with an inlet 36 and an outlet 37 on one side. Liquid cooling medium is input into the liquid-cooled outer tube 32 through the inlet 36, and then the liquid cooling medium in the liquid-cooled outer tube 32 is transported to the liquid-cooled plate 2 through the inlet pipe 4. When the liquid cooling medium flows through the liquid-cooled plate 2, it exchanges heat with the battery cell 11 wrapped by the liquid-cooled plate 2, thereby dissipating heat from the battery cell 11, thereby improving the heat dissipation performance of the battery and ensuring the performance, safety and service life of the battery module.

[0048] Since the liquid-cooled dehumidification device in this application also includes a return pipe that connects the liquid-cooled plate 2 and the liquid-cooled outer pipe 32, after heat exchange, the liquid-cooled medium flows back to the liquid-cooled outer pipe 32 through the return pipe and finally flows out from the liquid outlet 37 on the liquid-cooled outer pipe 32 for recycling, thereby enabling the liquid-cooled medium to be recycled, saving resources and reducing costs.

[0049] In this application, the liquid cooling function and dehumidification function of the liquid-cooled dehumidification device can operate separately. Specifically, when the liquid inlet 36 and the liquid outlet 37 are open and the fan 35 is stopped, the liquid cooling medium is supplied to the liquid-cooled outer pipe 32 through the liquid inlet 36. After flowing through the liquid cooling plate 2, the liquid cooling medium flows back into the liquid-cooled outer pipe 32 and then flows out through the liquid outlet 37, thereby realizing the independent liquid cooling function of this device.

[0050] When the liquid inlet 36 and liquid outlet 37 are closed and the fan 35 is started, the air in the battery compartment 1 is drawn into the condenser inner tube 31 through the air inlet 33. The air then flows through the cooling component 5 in the condenser inner tube 31 and then flows back to the battery compartment 1 through the air outlet 34, thereby realizing the dehumidification function of this device.

[0051] In this application, the liquid cooling and dehumidification functions of the liquid-cooled dehumidification device can operate simultaneously. Specifically, when the liquid inlet 36 and the liquid outlet 37 are opened and the fan 35 is started, liquid cooling medium is supplied to the liquid-cooled outer pipe 32 through the liquid inlet 36. After flowing through the liquid cooling plate 2, the liquid cooling medium flows back into the liquid-cooled outer pipe 32 and then flows out through the liquid outlet 37. At the same time, the fan 35 draws air from the battery compartment 1 through the air inlet 33 into the condenser inner pipe 31. After flowing through the cooling component 5 in the condenser inner pipe 31, the air flows back into the battery compartment 1 through the air outlet 34, thereby simultaneously realizing the liquid cooling and dehumidification functions of this device.

[0052] It is foreseeable that when the liquid cooling and dehumidification functions of this device are running simultaneously, since the liquid cooling outer tube 32 is located outside the condenser inner tube 31, the liquid cooling medium will affect the air temperature in the condenser inner tube 31 during the process of flowing through the liquid cooling plate 2, exchanging heat with the battery cell 11, and then flowing through the liquid cooling outer tube 32. Therefore, in actual implementation, a heat insulation sleeve can be installed between the condenser inner tube 31 and the liquid cooling outer tube 32 to prevent the liquid cooling medium after heat exchange from affecting the air temperature in the condenser inner tube 31 when flowing through the liquid cooling outer tube 32.

[0053] In this embodiment, the cooling component 5 consists of multiple heat sinks 51 arranged in a staggered manner within the condenser inner tube 31. In this application, the cooling component 5 comprises multiple heat sinks 51, which are arranged in a staggered manner within the condenser inner tube 31. When air in the battery compartment 1 is drawn into the condenser inner tube 31 through the air inlet 33, it flows upward within the condenser inner tube 31 and comes into contact with the air through the staggered heat sinks 51, causing the moisture in the air to liquefy. This increases the contact area between the cooling component 5 and the air, thereby improving the dehumidification effect of the device on the battery compartment 1.

[0054] Furthermore, in this embodiment, multiple heat sinks 51 are inclined downwards in the condenser inner tube 31, and the inclination angle of the heat sinks 51 is the same as the inclination angle of the air inlet 33. By inclining downwards, the liquefied condensate is guided, causing the condensate to flow downwards along the tube wall of the condenser inner tube 31 until it is stored and recycled in the liquid storage component 6, thereby achieving dehumidification of the battery compartment 1 and further ensuring the performance, safety and service life of the battery module.

[0055] In this embodiment, the liquid storage assembly 6 includes a liquid storage tank 61 disposed at the bottom of the condenser inner tube 31, and a drainage conduit 62 communicating with the liquid storage tank 61. In this application, the liquid storage assembly 6 includes a liquid storage tank 61 and a drainage conduit 62, the liquid storage tank 61 being disposed at the bottom of the condenser inner tube 31, and the drainage conduit 62 communicating with the condenser inner tube 31.

[0056] After the moisture in the air in the condenser tube 31 is liquefied, it flows down the tube wall to the storage tank 61 for storage, so that the storage component 6 can store more condensate. After a certain amount of condensate is stored in the storage tank 61, the condensate in the storage tank 61 is discharged and recycled through the drainage pipe 62, thus making the device more practical.

[0057] In this embodiment, the liquid storage assembly 6 further includes a one-way valve 63 disposed at the bottom of the liquid storage tank 61. The one-way valve 63 is located at the connection between the drainage conduit 62 and the liquid storage tank 61. In this application, the liquid storage assembly 6 further includes a one-way valve 63, which is disposed at the bottom of the liquid storage tank 61. The drainage conduit 62 is connected to the bottom of the liquid storage tank 61, therefore the one-way valve 63 is disposed at the connection between the drainage conduit 62 and the liquid storage tank 61.

[0058] When the one-way valve 63 is closed, the condensate in the inner condenser tube 31 flows to the storage tank 61 for storage; when the storage tank 61 has stored a certain amount of condensate, the one-way valve 63 opens, allowing the condensate in the storage tank 61 to be discharged and recycled through the drainage pipe 62, thereby making the device more practical.

[0059] Furthermore, in this embodiment, an oil seal layer 611 is provided inside the liquid storage tank 61. Since the density of condensate is greater than that of the oil seal layer 611, the condensate in the inner condenser tube 31 enters the liquid storage tank 61 and is located below the oil seal layer 611. Thus, the oil seal layer 611 isolates the condensate entering the liquid storage tank 61 from the air entering the inner condenser tube 31 and the liquid storage tank 61, thereby preventing the condensate stored in the liquid storage tank 61 from mixing with the air entering the inner condenser tube 31 and the liquid storage tank 61, which would affect the dehumidification effect of the device on the battery module.

[0060] The above-described contents can be implemented individually or in combination in various ways, and all such variations are within the protection scope of this utility model.

[0061] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A liquid-cooled dehumidification device for a battery module, characterized in that: The device includes a liquid cooling plate (2) located on the outside of the battery cell (11), a condenser (3) located on one side of the battery compartment (1), an inlet pipe (4) connecting the liquid cooling plate (2) and the condenser (3), a cooling component (5) located in the condenser (3), and a liquid storage component (6) located at the bottom of the condenser (3). The inlet pipe (4) transports the liquid cooling medium of the condenser (3) to the liquid cooling plate (2). The condenser (3) and the battery compartment (1) are connected by a pipeline to form a circulation path for air dehumidification. The cooling component (5) cools the air in the condenser (3). The liquid storage component (6) stores and recovers the condensate in the condenser (3).

2. The liquid-cooled dehumidification device for a battery module as described in claim 1, characterized in that: The condenser (3) includes a condenser inner tube (31) extending vertically and a liquid-cooled outer tube (32) located outside the condenser inner tube (31). The liquid inlet pipe (4) connects the liquid-cooled outer tube (32) to the liquid-cooled plate (2). The cooling component (5) is located in the condenser inner tube (31), and the liquid storage component (6) is located at the bottom of the condenser inner tube (31).

3. The liquid cooling dehumidification device for a battery module as described in claim 2, characterized in that: The inner condenser tube (31) has an air inlet (33) for communicating with the battery compartment (1), an air outlet (34) for communicating with the inner condenser tube (31) and the battery compartment (1), and a fan (35) provided at the air outlet (34).

4. The liquid cooling dehumidification device for a battery module as described in claim 3, characterized in that: The air outlet (34) is located above the air inlet (33), the air inlet (33) is inclined downward, and the angle between the air inlet (33) and the condenser inner tube (31) is 5 to 10°.

5. The liquid-cooled dehumidification device for a battery module as described in claim 3, characterized in that: The liquid cooling outer tube (32) is provided with an inlet (36) for inputting liquid cooling medium and an outlet (37) for outputting liquid cooling medium on one side.

6. The liquid-cooled dehumidification device for a battery module as described in claim 4, characterized in that: The cooling component (5) consists of multiple heat sinks (51) arranged alternately in the inner condenser tube (31).

7. The liquid-cooled dehumidification device for a battery module as described in claim 6, characterized in that: Multiple heat sinks (51) are arranged at an angle downward in the condenser tube (31), and the angle of inclination of the heat sinks (51) is the same as the angle of inclination of the air inlet (33).

8. The liquid cooling dehumidification device for a battery module as described in claim 2, characterized in that: The liquid storage assembly (6) includes a liquid storage tank (61) located at the bottom of the condenser inner tube (31) and a drainage conduit (62) connected to the liquid storage tank (61).

9. The liquid-cooled dehumidification device for a battery module as described in claim 8, characterized in that: The liquid storage assembly (6) also includes a one-way valve (63) located at the bottom of the liquid storage tank (61), the one-way valve (63) being located at the connection between the drainage conduit (62) and the liquid storage tank (61).

10. The liquid-cooled dehumidification device for a battery module as described in claim 8, characterized in that: The storage tank (61) is provided with an oil seal layer (611) to isolate the condensate entering the storage tank (61) from the water vapor in the outside.

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