A charge-discharge device and a charge-discharge system

Abstract

The application discloses a charging and discharging equipment and a charging and discharging system. The charging and discharging equipment comprises a box body, a charging and discharging module, a heat exchange module and a fan assembly. The heat exchange module is arranged in a containing cavity of the box body and connected with the box body. The heat exchange module divides the containing cavity into a first chamber and a second chamber. The heat exchange module is provided with a heat exchange channel. The heat exchange channel is communicated with the first chamber and the second chamber. The charging and discharging module is arranged in the first chamber. The fan assembly comprises a first fan. The first fan is operated to drive the gas in the first chamber to flow, so that the hot air in the charging and discharging module enters the heat exchange channel from the first chamber to exchange heat and cool down. The air cooled down enters the second chamber and is then discharged to the outside of the box body. In this way, the charging and discharging module can be cooled, the hot air is prevented from being directly discharged to the outside of the box body to cause the environmental temperature to be too high and affect the normal operation of the charging and discharging equipment, and a complicated exhaust duct structure does not need to be additionally arranged, so that the equipment is convenient to install and use.

Description

Technical Field

[0001] This application belongs to the field of battery technology, specifically relating to a charging and discharging device and a charging and discharging system. Background Technology

[0002] With the development of lithium battery technology, its capacity has been further improved. The production process of lithium batteries involves formation and capacity grading: formation is the first charge of the lithium battery, which is used to activate the active materials in the battery. When the lithium battery is assembled, it has no power and must be charged to activate it; capacity grading is to charge and discharge the battery and detect the amount of discharge when it is fully charged to determine the battery capacity.

[0003] Battery charging and discharging equipment that performs battery formation and capacity testing often generates a large amount of heat during operation. If this heat cannot be dissipated, it can lead to excessive internal heat, affecting the efficiency and lifespan of the equipment. Related technologies use fans and exhaust ducts to dissipate heat, but this method requires the exhaust ducts to be installed through walls to expel hot air outdoors, making construction and installation complex. Utility Model Content

[0004] This application aims to provide a charging and discharging device and a charging and discharging system that can solve the problem of poor heat dissipation in charging and discharging devices in related technologies.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] In a first aspect, embodiments of this application propose a charging and discharging device for a battery formation process, comprising: a housing, a charging and discharging module, a heat exchange module, and a fan assembly;

[0007] The housing is provided with a receiving cavity, the heat exchange module is disposed in the receiving cavity and connected to the housing, the heat exchange module divides the receiving cavity into a first chamber and a second chamber, the heat exchange module is provided with a heat exchange channel, the heat exchange channel connects the first chamber and the second chamber, and the charging and discharging module is disposed in the first chamber;

[0008] The fan assembly includes a first fan, which is mounted on the charging and discharging module. The first fan is used to drive the air in the first chamber to flow through the heat exchange channel to the second chamber, and to cool the air through the heat exchange module.

[0009] Optionally, the heat exchange module includes a partition and a heat exchange component. The partition is disposed in the receiving cavity and connected to the housing. The partition divides the receiving cavity into a first chamber and a second chamber. The partition has a through hole that communicates with the first chamber and the second chamber. The heat exchange component is disposed in the through hole and connected to the partition. The heat exchange channel is disposed in the heat exchange component.

[0010] Optionally, the charging and discharging device further includes a seal, which is arranged circumferentially around the heat exchanger, with one side of the seal connected to the partition and the other side of the seal connected to the heat exchanger.

[0011] Optionally, the fan assembly further includes a second fan, and the housing is provided with an exhaust port communicating with the second chamber. The second fan is located at the exhaust port and connected to the housing. The second fan is used to provide negative pressure to the second chamber so that the air in the second chamber is discharged from the charging and discharging device.

[0012] Optionally, the charging and discharging device is provided with a plurality of heat exchange elements, which are spaced apart.

[0013] Optionally, the housing is provided with an inlet pipe and an outlet pipe, the inlet pipe being connected to the inlet of the heat exchanger and the outlet pipe being connected to the outlet of the heat exchanger.

[0014] And / or, the charging and discharging device further includes a liquid receiving tray, which is connected to the partition plate. The liquid receiving tray is provided with a receiving groove, and the heat exchanger is placed on the receiving groove. The liquid receiving tray is used to collect the liquid dripping from the heat exchanger.

[0015] Optionally, the charging and discharging device further includes a drain pipe, one end of which is connected to the receiving tray and the other end of which is connected to the outlet pipe.

[0016] Optionally, the fan assembly includes at least two first fans, the charging and discharging device has a first direction, the first chamber and the second chamber are arranged at intervals along the first direction, and at least two first fans are respectively disposed on both sides of the charging and discharging module along the first direction.

[0017] Optionally, the heat exchanger is a liquid cooling plate.

[0018] Secondly, embodiments of this application propose a charging and discharging system, including the charging and discharging equipment described in any of the above claims.

[0019] In the embodiments of this application, a heat exchange module is installed inside the housing, dividing the containment cavity into a first chamber and a second chamber. The heat exchange module has a heat exchange channel communicating with both chambers. A first fan is installed on the charging / discharging module. The operation of the first fan drives the airflow within the first chamber, causing hot air from the charging / discharging module to enter the heat exchange channel within the heat exchange module. The heat exchange module then cools the hot air, which enters the second chamber and is subsequently discharged outside the housing. This not only achieves heat dissipation for the charging / discharging module but also cools the discharged hot air before releasing it into the external environment, preventing excessively high ambient temperatures caused by direct discharge of hot air, which could affect the normal operation of the charging / discharging equipment. Furthermore, it eliminates the need for a complex exhaust duct structure, simplifying installation and use.

[0020] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is one of the structural schematic diagrams of a charging and discharging device according to an embodiment of this application;

[0023] Figure 2 This is a second schematic diagram of the structure of a charging and discharging device according to an embodiment of this application.

[0024] Figure label:

[0025] 10: Housing; 11: Receiving cavity; 111: First chamber; 112: Second chamber; 12: Liquid inlet pipe; 13: Liquid outlet pipe; 14: Exhaust port; 20: Charging / discharging module; 30: Heat exchange module; 31: Partition plate; 311: Through hole; 32: Heat exchange component; 40: Fan assembly; 41: First fan; 42: Second fan; 50: Liquid receiving tray; X: First direction; Y: Second direction. Detailed Implementation

[0026] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0027] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0028] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the equipment or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] In the field of battery manufacturing, the formation and capacity assessment power supply cabinet is a key piece of equipment integrating the two core processes of battery formation and capacity assessment. It directly determines the initial efficiency, consistency, and safety of the battery. The role of the formation and capacity assessment power supply cabinet is not only to provide precise charge and discharge control, but also to achieve process optimization and cost savings through intelligent management. Formation is achieved through a multi-stage constant current-constant voltage-static resting process, precisely controlling the initial insertion and extraction of lithium ions to generate a uniform and dense solid electrolyte interface film with a thickness controlled at 2~5nm, which can reduce electrolyte decomposition and loss of active lithium.

[0031] Furthermore, it eliminates side reactions during the formation process, such as lithium plating and gas production, improving the initial coulombic efficiency to ≥90% (lithium iron phosphate) or ≥85% (ternary lithium). Capacity grading involves standardized charge-discharge testing of the formed battery, such as 1x charge / 0.5x discharge, to accurately measure the actual capacity with an accuracy of ±0.5%, thus eliminating batteries with a capacity deviation greater than 3%.

[0032] As can be seen from the above, the capacity formation process plays a crucial role in battery performance. Therefore, the charging and discharging equipment used for capacity formation needs to have good operational stability. During the capacity formation process, the charging and discharging equipment uses a charging and discharging module to charge and discharge the battery. This process generates significant heat loss in the charging and discharging module. Excessive temperature can damage the electronic components within the module, affecting its normal operation and reliability. Therefore, heat dissipation is necessary to ensure the charging and discharging module operates at a normal temperature. Related technologies primarily use fans and exhaust ducts within the charging and discharging equipment for heat dissipation; however, this method has relatively poor heat dissipation efficiency.

[0033] The charging and discharging device and charging and discharging system provided in this application will be described in detail below with reference to the accompanying drawings and through specific embodiments and application scenarios.

[0034] In some embodiments, such as Figure 1 As shown in the figure, this application proposes a charging and discharging device for battery formation process, including: a housing 10, a charging and discharging module 20, a heat exchange module 30, and a fan assembly 40; the housing 10 has a receiving cavity 11, the heat exchange module 30 is disposed in the receiving cavity 11 and connected to the housing 10, the heat exchange module 30 divides the receiving cavity 11 into a first chamber 111 and a second chamber 112, the heat exchange module 30 has a heat exchange channel, the heat exchange channel connects the first chamber 111 and the second chamber 112, the charging and discharging module 20 is disposed in the first chamber 111; the fan assembly 40 includes a first fan 41, the first fan 41 is disposed on the charging and discharging module 20, and the first fan 41 is used to drive the air in the first chamber 111 to flow to the second chamber 112 through the heat exchange channel, and to cool the air through the heat exchange module 30.

[0035] In the embodiments of this application, a heat exchange module 30 is provided inside the housing 10, which divides the housing 11 into a first chamber 111 and a second chamber 112. The heat exchange module 30 is provided with a heat exchange channel communicating with the first chamber 111 and the second chamber 112. At the same time, a first fan 41 is provided on the charging and discharging module 20. The operation of the first fan 41 can drive the gas flow in the first chamber 111, thereby causing the hot air in the charging and discharging module 20 to enter the heat exchange channel in the heat exchange module 30 from the first chamber 111. The heat exchange module 30 is used to exchange heat and cool the hot air. After cooling, the air enters the second chamber 112 and is then discharged outside the housing 10. In this way, not only can the heat dissipation function of the charging and discharging module 20 be realized, but the heat exchange module 30 can also be used to cool the hot air discharged from the charging and discharging module 20 before it is discharged into the external environment. This avoids the hot air being directly discharged from the housing 10, which would cause the ambient temperature to be too high and affect the normal operation of the charging and discharging equipment. Furthermore, it eliminates the need for an additional complex exhaust duct structure, making it convenient for installation and use.

[0036] It should be noted that the charging / discharging module 20 refers to an AC / DC power supply, which is an alternating current (AC) / direct current (DC) power supply used to convert the AC power from the power grid into the DC power required by the battery.

[0037] In some embodiments, the charging and discharging device has a first direction X, and a first chamber 111 and a second chamber 112 are arranged at intervals along the first direction X. For example... Figure 1 As shown in the diagram, the dashed arrows indicate the airflow path. The housing 10 has an air inlet on the outer wall of the first chamber 111, allowing ambient air to enter the first chamber 111. The charging / discharging module 20 includes a housing and a charging / discharging power supply. The housing has a receiving cavity, and the charging / discharging power supply is located within this cavity. During operation, the charging / discharging power supply continuously generates heat, causing the air temperature inside the first chamber 111 to rise. A first fan 41 is mounted on the side wall of the housing. When the first fan 41 is activated, it drives airflow around the charging / discharging module 20, promoting heat dissipation from the charging / discharging power supply. Simultaneously, under the influence of air convection, the hot air in the first chamber 111 flows into the heat exchange channel of the heat exchange module 30, where it is cooled before entering the second chamber 112. The housing 10 has an exhaust port 14 on the outer wall of the second chamber 112. The cooled air mixes within the second chamber 112 and is then discharged from the housing 10 through the exhaust port 14. Optionally, such as Figure 1As shown, the heat exchange module 30 includes a partition 31 and a heat exchange component 32. The partition 31 is disposed in the receiving cavity 11 and connected to the housing 10. The partition 31 divides the receiving cavity 11 into a first chamber 111 and a second chamber 112. The partition 31 is provided with a through hole 311, which communicates with the first chamber 111 and the second chamber 112. The heat exchange component 32 is disposed in the through hole 311 and connected to the partition 31. The heat exchange channel is disposed in the heat exchange component 32.

[0038] In this embodiment, by setting a partition 31 and connecting the partition 31 to the housing 10, the housing 11 is divided into a first chamber 111 and a second chamber 112 by the housing 10. At the same time, a through hole 311 is provided on the partition 31, and the heat exchanger 32 is placed at the through hole 311 and connected to the partition 31. This not only allows the hot air in the first chamber 111 to be cooled through the heat exchange channel in the heat exchanger 32 before entering the second chamber 112, but also facilitates the installation of the heat exchanger 32.

[0039] It should be noted that the number of heat exchangers 32 can be one or two, depending on the power of the charging / discharging module 20. When the number of heat exchangers 32 is two or more, the two or more heat exchangers 32 are arranged at intervals along the height direction of the charging / discharging device. In addition, the partition plate 31 and the housing 10 can be connected by welding. Welding is not only convenient and firm to install, but also has good sealing performance, which can prevent hot air in the first chamber 111 from directly entering the second chamber 112 without passing through the heat exchange channel of the heat exchanger 32. Of course, the heat exchanger 32 can also be detachably connected to the partition plate 31 by bolts. This detachable connection method facilitates the replacement and maintenance of the heat exchanger 32. The specific connection method between the heat exchanger 32 and the partition plate 31 can be flexibly selected according to actual process requirements, and this embodiment does not limit it.

[0040] It should also be noted that the heat exchanger 32 can be a plate heat exchanger or a finned tube heat exchanger, etc. Plate heat exchangers are not only compact in structure and save installation space, but also have high heat exchange efficiency; the fins of finned tube heat exchangers can be directly cleaned, which is convenient for daily maintenance. Of course, the specific type of heat exchanger 32 can be flexibly selected according to actual process requirements, and this application embodiment does not limit it.

[0041] Optionally, the charging and discharging device also includes a seal that is arranged circumferentially around the heat exchanger 32, with one side of the seal connected to the partition 31 and the other side of the seal connected to the heat exchanger 32.

[0042] In this embodiment, a sealing element is arranged circumferentially around the heat exchanger 32, with one side of the sealing element connected to the heat exchanger 32 and the other side connected to the partition 31. This allows the sealing element to fill the assembly gap between the partition 31 and the heat exchanger 32, preventing hot air in the first chamber 111 from directly entering the second chamber 112 without passing through the heat exchanger 32, thereby improving the heat dissipation effect on the charging and discharging module.

[0043] It should be noted that the seals can be made of rubber or sealant. Rubber seals are resistant to high temperatures and aging, while sealants not only provide a sealing function but also serve to connect and fix the components, thereby improving the connection stability between the heat exchanger 32 and the partition 31. Of course, the specific type of seal can be flexibly selected according to actual process requirements, and this application embodiment does not limit it.

[0044] Optionally, such as Figure 2 As shown, the fan assembly 40 also includes a second fan 42. The housing 10 is provided with an exhaust port 14 that communicates with the second chamber 112. The second fan 42 is located at the exhaust port 14 and connected to the housing 10. The second fan 42 is used to provide negative pressure to the second chamber 112 so that the air in the second chamber 112 is discharged from the charging and discharging device.

[0045] In this embodiment of the application, by providing an exhaust port 14 in the housing 10 that communicates with the second chamber 112, and by providing a second fan 42 at the exhaust port 14, the second fan 42 provides negative pressure to the second chamber 112, thereby forming a negative pressure air duct in the second chamber 112. This can further draw hot air from the first chamber 111 into the second chamber 112, thereby improving the heat dissipation effect.

[0046] It is understood that the charging and discharging equipment in this embodiment is placed in a production workshop equipped with air conditioning and other cooling devices. These devices ensure that the ambient temperature outside the housing 10 is also relatively low, generally around 25°C. The specific temperature can be set according to actual needs; this temperature is only an example. The cold air in the second chamber 112, after being cooled by the heat exchanger 32, flows out of the exhaust port 14 and can then re-enter the first chamber 111 through the air inlet to further dissipate heat and cool the charging and discharging module 20.

[0047] Optionally, such as Figure 2 As shown, the charging and discharging device is provided with multiple heat exchange components 32, which are arranged at intervals.

[0048] In this embodiment of the application, by setting multiple heat exchangers 32 in the charging and discharging device and setting the heat exchangers 32 at intervals, the heat dissipation effect and efficiency of the hot air in the first chamber 111 can be improved, thereby ensuring the normal operation of the charging and discharging module 20.

[0049] It is understandable that the height direction of the housing 10 is the second direction Y, and multiple heat exchange components 32 can be arranged at intervals along the second direction Y.

[0050] In some embodiments, such as Figure 2 As shown, the housing 10 is provided with an inlet pipe 12 and an outlet pipe 13. The inlet pipe 12 is connected to the inlet of the heat exchanger 32, and the outlet pipe 13 is connected to the outlet of the heat exchanger 32.

[0051] In this embodiment, by providing an inlet pipe 12 and an outlet pipe 13 on the housing 10, the inlet pipe 12 is connected to the inlet of the heat exchanger 32, and the outlet pipe 13 is connected to the outlet of the heat exchanger 32. This allows the inlet pipe 12 to provide coolant to the heat exchanger 32. The coolant exchanges heat with the hot air passing through the heat exchanger 32 and then flows out through the outlet pipe 13, thereby enabling the heat exchanger 32 to continuously cool the hot air in the first chamber 111. This structure is not only easy to install, but also compact.

[0052] It is understandable that water can be used as a coolant, as water is not only cheaper and easier to obtain, but also produces no pollution.

[0053] Optionally, such as Figure 2 As shown, the charging and discharging equipment also includes a liquid receiving tray 50, which is connected to the partition plate 31. The liquid receiving tray 50 is provided with a receiving groove, and the heat exchanger 32 is placed on the receiving groove. The liquid receiving tray 50 is used to collect the liquid dripping from the heat exchanger 32.

[0054] In this embodiment of the application, by setting a liquid receiving tray 50 and connecting the liquid receiving tray 50 to the partition plate 31, and setting a receiving groove on the liquid receiving tray 50, the heat exchanger 32 is placed on the receiving groove. In this way, the liquid receiving tray 50 can collect the condensate generated by the heat exchanger 32 during operation, and avoid the condensate from dripping directly onto the bottom of the box 10, which could cause safety hazards.

[0055] It is understandable that the liquid receiving tray 50 is set in the second chamber 112, and one liquid receiving tray 50 is set for each heat exchanger 32.

[0056] In some embodiments, the charging and discharging device further includes a drain pipe, one end of which is connected to the liquid receiving tray 50 and the other end of which is connected to the liquid outlet pipe 13.

[0057] In this embodiment, a drain pipe is provided, with one end connected to the receiving tray 50 and the other end connected to the outlet pipe 13. This allows the condensate collected in the receiving tray 50 to be discharged from the housing 10 through the outlet pipe 13, preventing the condensate from accumulating in the receiving tray 50 and overflowing, which could then drip onto other electrical components inside the housing 10, causing short circuits or other safety hazards. It also prevents the condensate from corroding the housing 10, thereby increasing the service life of the charging and discharging equipment and reducing maintenance and replacement costs.

[0058] In some embodiments, such as Figure 2 As shown, the fan assembly 40 includes at least two first fans 41, the charging and discharging device has a first direction X, the first chamber 111 and the second chamber 112 are arranged at intervals along the first direction X, and the at least two first fans 41 are respectively disposed on both sides of the charging and discharging module 20 along the first direction X.

[0059] In this embodiment, by placing first fans 41 on both sides of the charging and discharging module 20 along the first direction X, the heat generated by the charging and discharging module 20 is carried into the heat exchanger 32 by the two first fans 41 through the air, which can further improve the heat dissipation effect and heat dissipation efficiency.

[0060] Optionally, the heat exchanger 32 is a liquid cooling plate.

[0061] In this application, by setting the heat exchanger 32 as a liquid cooling plate, the hot air in the first chamber 111 is cooled by the liquid cooling plate. The liquid cooling plate not only has a good heat dissipation effect, but also has a compact structure, which can save the space inside the box 10, and is easy to install and maintain.

[0062] It should be noted that the first fan 41 can be a fan, and the second fan 42 can be a circulating fan.

[0063] Secondly, embodiments of this application propose a charging and discharging system, including the charging and discharging device described in the above embodiments.

[0064] In the embodiments of this application, a heat exchange module 30 is provided inside the housing 10, which divides the housing 11 into a first chamber 111 and a second chamber 112. The heat exchange module 30 is provided with a heat exchange channel communicating with the first chamber 111 and the second chamber 112. At the same time, a first fan 41 is provided on the charging and discharging module 20. The operation of the first fan 41 can drive the gas flow in the first chamber 111, thereby causing the hot air in the charging and discharging module 20 to enter the heat exchange channel in the heat exchange module 30 from the first chamber 111. The heat exchange module 30 is used to exchange heat and cool the hot air. After cooling, the air enters the second chamber 112 and is then discharged outside the housing 10. In this way, not only can the heat dissipation function of the charging and discharging module 20 be realized, but the heat exchange module 30 can also be used to cool the hot air discharged from the charging and discharging module 20 before it is discharged into the external environment. This avoids the hot air being directly discharged from the housing 10, which would cause the ambient temperature to be too high and affect the normal operation of the charging and discharging equipment. Furthermore, it eliminates the need for an additional complex exhaust duct structure, making it convenient for installation and use.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0066] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A charging and discharging device for a battery formation process, characterized in that, include: The enclosure (10), the charging and discharging module (20), the heat exchange module (30), and the fan assembly (40); The housing (10) is provided with a receiving cavity (11). The heat exchange module (30) is located in the receiving cavity (11) and connected to the housing (10). The heat exchange module (30) divides the receiving cavity (11) into a first chamber (111) and a second chamber (112). The heat exchange module (30) is provided with a heat exchange channel that connects the first chamber (111) and the second chamber (112). The charging and discharging module (20) is located in the first chamber (111). The fan assembly (40) includes a first fan (41). The first fan (41) is located on the charging and discharging module (20). The first fan (41) is used to drive the air in the first chamber (111) to flow to the second chamber (112) through the heat exchange channel and to cool the air through the heat exchange module (30).

2. The charging and discharging device according to claim 1, characterized in that, The heat exchange module (30) includes a partition (31) and a heat exchange component (32). The partition (31) is disposed in the receiving cavity (11) and connected to the housing (10). The partition (31) divides the receiving cavity (11) into a first chamber (111) and a second chamber (112). The partition (31) is provided with a through hole (311) which communicates with the first chamber (111) and the second chamber (112). The heat exchange component (32) is disposed in the through hole (311) and connected to the partition (31). The heat exchange channel is disposed in the heat exchange component (32).

3. The charging and discharging device according to claim 2, characterized in that, The charging and discharging device also includes a sealing element, which is arranged circumferentially around the heat exchange element (32). One side of the sealing element is connected to the partition plate (31), and the other side of the sealing element is connected to the heat exchange element (32).

4. The charging and discharging device according to claim 1, characterized in that, The fan assembly (40) further includes a second fan (42). The housing (10) is provided with an exhaust port (14) communicating with the second chamber (112). The second fan (42) is located at the exhaust port (14) and connected to the housing (10). The second fan (42) is used to provide negative pressure to the second chamber (112) so that the air in the second chamber (112) is discharged from the charging and discharging device.

5. The charging and discharging device according to claim 2, characterized in that, The charging and discharging device is provided with a plurality of heat exchange elements (32), which are spaced apart.

6. The charging and discharging device according to claim 2, characterized in that, The housing (10) is provided with an inlet pipe (12) and an outlet pipe (13). The inlet pipe (12) is connected to the inlet of the heat exchanger (32), and the outlet pipe (13) is connected to the outlet of the heat exchanger (32). And / or, the charging and discharging device further includes a liquid receiving tray (50), which is connected to the partition (31). The liquid receiving tray (50) is provided with a receiving groove, and the heat exchanger (32) is placed on the receiving groove. The liquid receiving tray (50) is used to collect the liquid dripping from the heat exchanger (32).

7. The charging and discharging device according to claim 6, characterized in that, The charging and discharging device also includes a drain pipe, one end of which is connected to the receiving tray (50), and the other end of which is connected to the outlet pipe (13).

8. The charging and discharging device according to claim 1, characterized in that, The fan assembly (40) includes at least two first fans (41), the charging and discharging device has a first direction (X), the first chamber (111) and the second chamber (112) are arranged at intervals along the first direction (X), and at least two first fans (41) are respectively disposed on both sides of the charging and discharging module (20) along the first direction (X).

9. The charging and discharging device according to any one of claims 2-8, characterized in that, The heat exchanger (32) is a liquid cooling plate.

10. A charging and discharging system, characterized in that, Includes the charging and discharging device as described in any one of claims 1-9.

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