Liquid cooling reversing device, liquid cooling system, battery and electric device

Abstract

The embodiment of the utility model provides a liquid cooling reversing device, a liquid cooling system, a battery and a power utilization device, and the liquid cooling reversing device comprises a main body pipe and a reversing assembly. The first side of the main body pipe is provided with a liquid cooling liquid inlet, and the liquid cooling liquid inlet is used for being connected with a water outlet of a liquid cooling system; a first liquid cooling liquid outlet, a second liquid cooling liquid outlet and a liquid cooling liquid return port are formed in the second side of the main body pipe; wherein the first liquid cooling liquid outlet is used for being connected with a water inlet at a first position of the battery, the second liquid cooling liquid outlet is used for being connected with a water inlet at a second position of the battery, and the liquid cooling liquid return port is used for being connected with a water return port of a liquid cooling system; when the reversing assembly is in a first state, the liquid cooling liquid inlet is communicated with the first liquid cooling liquid outlet, and the second liquid cooling liquid outlet is communicated with the liquid cooling liquid return port; and when the reversing assembly is in a second state, the liquid cooling liquid inlet is communicated with the second liquid cooling liquid outlet, and the first liquid cooling liquid outlet is communicated with the liquid cooling liquid return port.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a liquid-cooled reversing device, a liquid cooling system, a battery and an electrical device. Background Art

[0002] When the battery is thermally managed through a liquid cooling system, the liquid coolant flows into the liquid cooling inlet of the battery for thermal management, so that the temperature distribution direction inside the battery is fixed. For example, when cooling, the temperature of the battery cells close to the liquid cooling inlet is relatively low, and the temperature of the battery cells far from the liquid cooling inlet is relatively higher, which increases the temperature difference between the battery cells in the battery. Utility Model Content

[0003] The purpose of the present application is to provide a liquid-cooled reversing device, a liquid-cooling system, a battery and an electrical device, which can adjust the inlet position of the liquid-cooling liquid entering the battery, thereby more evenly adjusting the temperature of the battery.

[0004] In the first aspect, the utility model provides a liquid-cooled reversing device, comprising: a main body tube and a reversing assembly; a liquid-cooling liquid inlet is arranged on a first side of the main body tube, and the liquid-cooling liquid inlet is used to be connected to a water outlet of a liquid cooling system; a first liquid-cooling liquid outlet, a second liquid-cooling liquid outlet and a liquid-cooling liquid return port are arranged on a second side of the main body tube; wherein, the first liquid-cooling liquid outlet is used to be connected to a water inlet of a first position of a battery, the second liquid-cooling liquid outlet is used to be connected to a water inlet of a second position of the battery, and the liquid-cooling liquid return port is used to be connected to a water return port of the liquid cooling system; when the reversing assembly is in a first state, the liquid-cooling liquid inlet is connected to the first liquid-cooling liquid outlet, and the second liquid-cooling liquid outlet is connected to the liquid-cooling liquid return port; when the reversing assembly is in a second state, the liquid-cooling liquid inlet is connected to the second liquid-cooling liquid outlet, and the first liquid-cooling liquid outlet is connected to the liquid-cooling liquid return port.

[0005] In the above embodiment, thermal management under different states can be achieved through the reversing assembly. In the first state, the liquid cooling liquid inlet can be connected to the first liquid cooling liquid outlet, so that liquid cooling liquid can be input from the water inlet at the first position of the battery to perform thermal management on the battery. In the second state, the liquid cooling liquid inlet can be connected to the second liquid cooling liquid outlet, so that liquid cooling liquid can be input from the water inlet at the second position of the battery to perform thermal management on the battery. The initial position of the liquid cooling liquid entering the battery area can be flexibly adjusted.

[0006] In an optional embodiment, the reversing component includes: a covering component arranged in a cavity between the first side and the second side of the main tube; the liquid cooling liquid return port is arranged between the first liquid cooling liquid outlet and the second liquid cooling liquid outlet; the first state includes the covering component covering the liquid cooling liquid return port and one end of the first liquid cooling liquid outlet connecting the liquid cooling liquid inlet to form a partition between the first liquid cooling liquid outlet and the liquid cooling liquid inlet, and a partition between the liquid cooling liquid return port and the liquid cooling liquid inlet; the second state includes the covering component covering the liquid cooling liquid return port and one end of the second liquid cooling liquid outlet connecting the liquid cooling liquid inlet to form a partition between the second liquid cooling liquid outlet and the liquid cooling liquid inlet, and a partition between the liquid cooling liquid return port and the liquid cooling liquid inlet.

[0007] In the above embodiment, by providing a covering component, the state can be switched by directly blocking the first liquid-cooling liquid outlet or the second liquid-cooling liquid outlet, which is relatively simple to implement.

[0008] In an optional embodiment, the reversing assembly includes a driving assembly connected to the covering assembly, and the driving assembly is used to drive the covering assembly to move.

[0009] In an optional embodiment, the driving assembly includes: a driving rod connected to the covering assembly, and a driver connected to the driving rod; the driver is used to drive the driving rod to move, and the driving rod drives the covering assembly to move.

[0010] In an optional embodiment, the driving assembly includes: a support rod installed on the covering assembly, a first baffle and a second baffle arranged at both ends of the support rod; the shapes of the first baffle and the second baffle match the cross-sectional shape of the cavity of the main tube, and the first baffle and the inner side surface of the cavity form a first sub-cavity; the second baffle and the inner side surface of the cavity form a second sub-cavity; wherein, after the first sub-cavity is filled, the first baffle, the covering assembly and the second baffle are squeezed to one end of the cavity, driving the covering assembly to cover the liquid cooling liquid return port and the second liquid cooling liquid return port. The liquid outlet is connected to one end of the liquid-cooling liquid inlet to form a partition between the second liquid-cooling liquid outlet and the liquid-cooling liquid inlet, and a partition is formed between the liquid-cooling liquid return port and the liquid-cooling liquid inlet; after the second sub-cavity is filled, the first baffle, the covering assembly and the second baffle are squeezed to the other end of the cavity, driving the covering assembly to cover the liquid-cooling liquid return port and one end of the first liquid-cooling liquid outlet connected to the liquid-cooling liquid inlet, so as to form a partition between the first liquid-cooling liquid outlet and the liquid-cooling liquid inlet, and a partition is formed between the liquid-cooling liquid return port and the liquid-cooling liquid inlet.

[0011] In an optional embodiment, the reversing assembly further includes: a first water pipe communicating with the first sub-cavity, a second water pipe communicating with the second sub-cavity, and a water guide device connected with the first water pipe and the second water pipe and communicating with the liquid cooling liquid inlet;

[0012] The state of the water guiding device includes: the water guiding device is connected to the first water pipe and blocks the second water pipe; or the water guiding device is connected to the second water pipe and blocks the first water pipe.

[0013] In an optional embodiment, the water guiding device includes a reset component and a third water pipe connected to the liquid cooling liquid inlet and the reset component; the reset component includes a tube body, a valve core and a first elastic member installed inside the tube body, and a magnetic member installed at a second end outside the tube body; one end of the third water pipe is connected to the liquid cooling liquid inlet, and the other end of the third water pipe is connected to the tube body of the reset component; the first water pipe is connected to the first end of the tube body, and the second water pipe is connected to the second end of the tube body; when the reset component is in an unpowered state, the valve core is located at the first end of the tube body away from the magnetic member under the action of the first elastic member, thereby blocking the first water pipe; when the reset component is in an energized state, the valve core compresses the first elastic member under the action of the magnetic force of the magnetic member to be located at the second end where the magnetic member is located, thereby blocking the second water pipe.

[0014] In an optional embodiment, the support rod is a hollow rod, and a through hole connected to the hollow rod is provided on the covering assembly; a first through hole is provided at the connection between the first baffle and the hollow rod; a second through hole is provided at the connection between the second baffle and the hollow rod; a first blocking member is provided at the first through hole, and when the first blocking member is squeezed, the first blocking member blocks the first through hole, and when the first blocking member is not squeezed, there is a gap between the first blocking member and the first through hole; a second blocking member is provided at the second through hole, and when the second blocking member is squeezed, the second blocking member blocks the second through hole, and when the second blocking member is not squeezed, there is a gap between the second blocking member and the second through hole.

[0015] In the above embodiment, by providing a through hole connected to the hollow rod, the liquid in the hollow rod can flow into the water outlet covered by the covering assembly, thereby avoiding the accumulation of liquid in the hollow rod or the cavity of the main tube.

[0016] In an optional embodiment, the cross-section of the first end of the first blocking member is smaller than the cross-section of the hollow rod, and the cross-section of the second end of the first blocking member is not smaller than the cross-section of the hollow rod; the cross-section of the portion connecting the first end of the first blocking member and the second end of the first blocking member is smaller than the cross-section of the first end of the first blocking member; the first end of the first blocking member passes through the first through hole and is embedded in the hollow rod, and the second end of the first blocking member is exposed outside the first through hole; a first limit block is provided at the first through hole, and the width of the first limit block is smaller than the diameter of the first through hole, and the first limit block is limited between the first end of the first blocking member and the second end of the first blocking member; wherein, when the first blocking member is squeezed, the second end of the first blocking member fills the first through hole; when the first blocking member is not squeezed, there is a gap between the first blocking member and the first through hole.

[0017] In an optional embodiment, a second elastic member is further included which is arranged between the first limiting block and the second end of the first blocking member.

[0018] In a second aspect, the utility model provides a liquid cooling system, comprising the liquid cooling reversing device described in any one of the aforementioned embodiments.

[0019] In a third aspect, the utility model provides a battery, comprising: a liquid cooling plate and a liquid cooling reversing device as described in any one of the aforementioned embodiments; the liquid cooling reversing device is connected to a first water inlet and a second water inlet on the liquid cooling plate.

[0020] In a fourth aspect, the utility model provides an electrical device, comprising the battery described in the aforementioned embodiment, wherein the battery is used to provide electrical energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of a first exemplary structure of a liquid-cooled reversing device provided in an embodiment of the present application;

[0023] Figure 2 A second exemplary structural diagram of a liquid-cooled reversing device provided in an embodiment of the present application;

[0024] Figure 3 A third exemplary structural diagram of a liquid-cooled reversing device provided in an embodiment of the present application;

[0025] Figure 4 A fourth exemplary structural diagram of a liquid-cooled reversing device provided in an embodiment of the present application;

[0026] Figure 5 A fifth exemplary structural diagram of a liquid-cooled reversing device provided in an embodiment of the present application;

[0027] Figure 6 A schematic diagram of a state structure of a water guide device of a liquid-cooled reversing device provided in an embodiment of the present application;

[0028] Figure 7 A schematic structural diagram of another state of the water guide device of the liquid-cooled reversing device provided in an embodiment of the present application;

[0029] Figure 8 A schematic diagram of a state structure of a first blocking member of a liquid-cooled reversing device provided in an embodiment of the present application;

[0030] Fig. 9 This is a schematic diagram of the structure of another state of the first blocking member of the liquid-cooled reversing device provided in an embodiment of the present application.

[0031] Icons: 100-main pipe; 110-liquid cooling liquid inlet; 120-first liquid cooling liquid outlet; 130-second liquid cooling liquid outlet; 140-liquid cooling liquid return port; 150-cavity; 161-first opening; 162-second opening; 171-first side wall; 172-second side wall; 210-covering assembly; 220-driving assembly; 221-driving rod; 222-driving assembly; 223-supporting rod; 2231-first limit block; 224 -first baffle; 225-second baffle; 226-first water pipe; 227-second water pipe; 228-water guiding device; 2281-tube body; 2282-valve core; 2283-first elastic member; 2284-magnetic member; 229-third water pipe; 310-first sub-cavity; 320-second sub-cavity; 330-first blocking member; 331-first end of the first blocking member; 332-second end of the first blocking member; 340-second blocking member; 350-second elastic member. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings in the embodiments of the present application.

[0033] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present application, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model products are usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be interpreted as a limitation of the present application.

[0035] In the description of this application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] As an important functional device, batteries are used in many scenarios. In one usage scenario, as the battery is used, the battery temperature will increase. In order to make the battery work more stably, a thermal management system, such as a liquid cooling system, is usually used to cool the battery so that the battery can be within a safe temperature range. In another usage environment, in some extremely cold environments, the battery is in a static non-heating state when not in use. Since the ambient temperature is relatively low, the temperature of the battery itself is relatively low. Therefore, before use, it needs to be heated up so that the battery can work more stably.

[0037] The existing liquid cooling system is usually connected from one side of the battery, so that the liquid cooling liquid of the liquid cooling system can flow into various positions of the battery, so as to achieve heat exchange between the liquid cooling liquid and the battery cells in the battery, so as to achieve thermal management of the battery. However, in the current thermal management method, the liquid cooling system is usually connected from one side of the battery, which will cause the temperature regulation force of the battery cell that the liquid cooling liquid contacts first to be relatively large, while the temperature regulation force of the battery cell that is far away from the position where the liquid cooling system is connected is relatively small, which may also cause a difference in the temperature regulation force of each battery cell in the battery, resulting in a temperature difference between the battery cells in the battery.

[0038] Based on the above research, the embodiments of the present application provide a liquid-cooled reversing device, which can be connected to batteries at different positions based on actual needs, thereby reducing the temperature difference between the battery cells of the connected batteries, thereby better protecting the batteries and increasing the battery life. The liquid-cooled reversing device provided by the present application is described below through some embodiments.

[0039] Figure 1This is a schematic diagram of the structure of the liquid-cooled reversing device provided in the embodiment of the present application. Figure 1 As shown, the liquid-cooled reversing device includes: a main tube 100 and a reversing assembly.

[0040] like Figure 1 As shown, a liquid cooling liquid inlet 110 is disposed on the first side of the main tube 100 ; a first liquid cooling liquid outlet 120 , a second liquid cooling liquid outlet 130 and a liquid cooling liquid return port 140 are disposed on the second side of the main tube 100 .

[0041] Optionally, the liquid cooling liquid inlet 110 disposed on the first side of the main body tube 100 may be cylindrical, and the second side of the main body tube 100 may also be cylindrical. The diameter of the first side of the main body tube 100 is smaller than the diameter of the second side of the main body tube 100 .

[0042] The liquid cooling liquid inlet 110 of the main pipe 100 is used to be connected to a water outlet of a liquid cooling system, and the liquid cooling liquid of the liquid cooling system can flow in through the liquid cooling liquid inlet 110 .

[0043] The liquid cooling liquid return port 140 of the main pipe 100 can be used to be connected to the return port of the liquid cooling system, and the liquid cooling liquid in the liquid cooling liquid return port 140 can flow back to the liquid cooling system through the return port of the liquid cooling system.

[0044] In this embodiment, the first liquid cooling outlet 120 and the second liquid cooling outlet 130 of the main tube 100 can be connected to the battery. The first liquid cooling outlet 120 is used to connect to the water inlet at the first position of the battery, and the second liquid cooling outlet 130 is used to connect to the water inlet at the second position of the battery.

[0045] Exemplarily, a cooling plate may be provided in the battery, the first liquid cooling liquid outlet 120 is used for a water inlet at a first position of the cooling plate of the battery, and the second liquid cooling liquid outlet 130 is used for a water inlet at a second position of the cooling plate of the battery.

[0046] When the reversing assembly is in the first state, the liquid cooling liquid inlet 110 is connected to the first liquid cooling liquid outlet 120, and the second liquid cooling liquid outlet 130 is connected to the liquid cooling liquid return port 140; when the reversing assembly is in the second state, the liquid cooling liquid inlet 110 is connected to the second liquid cooling liquid outlet 130, and the first liquid cooling liquid outlet 120 is connected to the liquid cooling liquid return port 140.

[0047] Exemplarily, when the liquid cooling liquid inlet 110 is connected to the first liquid cooling liquid outlet 120, the coolant of the liquid cooling system flows into the first position connected to the first liquid cooling liquid outlet 120 through the liquid cooling liquid inlet 110 and the first liquid cooling liquid outlet 120 to enter the battery area, and then flows out from the second position connected to the second liquid cooling liquid outlet 130 to flow into the second liquid cooling liquid outlet 130 and the liquid cooling liquid return port 140, and flows back to the liquid cooling system.

[0048] Exemplarily, when the liquid cooling liquid inlet 110 is connected to the second liquid cooling liquid outlet 130, the coolant of the liquid cooling system flows into the second position connected to the second liquid cooling liquid outlet 130 through the liquid cooling liquid inlet 110 and the second liquid cooling liquid outlet 130 to enter the battery area, and then flows out from the first position connected to the first liquid cooling liquid outlet 120 to flow into the first liquid cooling liquid outlet 120 and the liquid cooling liquid return port 140, and flows back to the liquid cooling system.

[0049] In this embodiment, since the first liquid cooling outlet and the second liquid cooling outlet are connected to different positions of the battery, in thermal management based on different needs, the liquid cooling liquid can enter the battery from the position where the first liquid cooling outlet or the second liquid cooling outlet is connected to provide thermal management for the battery, which can also achieve more uniform thermal management for the battery.

[0050] In an optional embodiment, the reversing assembly includes: a covering assembly 210 disposed in the cavity 150 between the first side and the second side of the main tube 100 .

[0051] The covering assembly 210 is in a movable state, and can move at the first liquid cooling liquid outlet 120 , the second liquid cooling liquid outlet 130 , and the liquid cooling liquid return port 140 inside the main tube 100 .

[0052] In this embodiment, Figure 1 As shown, the liquid coolant return port 140 is disposed between the first liquid coolant outlet 120 and the second liquid coolant outlet 130 .

[0053] The liquid cooling liquid return port 140 may be in communication with the first liquid cooling liquid outlet 120 , and the liquid cooling liquid return port 140 may also be in communication with the second liquid cooling liquid outlet 130 .

[0054] In this embodiment, when the reversing assembly is in the first state, the covering assembly 210 covers the end of the liquid cooling liquid return port 140 and the first liquid cooling liquid outlet 120 connecting the liquid cooling liquid inlet 110 to form a partition between the first liquid cooling liquid outlet 120 and the liquid cooling liquid inlet 110, and to form a partition between the liquid cooling liquid return port 140 and the liquid cooling liquid inlet 110.

[0055] When the reversing assembly is in the first state, the covering assembly 210 covers the end of the liquid cooling liquid return port 140 and the second liquid cooling liquid outlet 130 connecting the liquid cooling liquid inlet 110 to form a partition between the second liquid cooling liquid outlet 130 and the liquid cooling liquid inlet 110, and to form a partition between the liquid cooling liquid return port 140 and the liquid cooling liquid inlet 110.

[0056] See also Figure 1As shown, the four openings of the main tube 100 can communicate with each other without the aid of other auxiliary parts. When the covering component 210 is inside the main tube 100 and covers the two openings at the second end of the main tube 100, it can isolate the liquid cooling liquid inlet 110 from the two openings at the second end of the main tube 100 covered by the covering component 210.

[0057] like Figure 1 As shown, the covering component 210 can be hemispherical, which covers the second liquid cooling liquid outlet 130 and the liquid cooling liquid return port 140. The covering component 210 forms a partition between the second liquid cooling liquid outlet 130 and the liquid cooling liquid inlet 110, and the liquid cooling liquid entering from the liquid cooling liquid inlet 110 cannot directly enter the second liquid cooling liquid outlet 130; the covering component 210 can also form a partition between the liquid cooling liquid return port 140 and the liquid cooling liquid inlet 110, and the liquid cooling liquid entering from the liquid cooling liquid inlet 110 cannot directly enter the liquid cooling liquid return port 140.

[0058] When the covering component 210 covers the second liquid cooling liquid outlet 130 and the liquid cooling liquid return port 140 , the second liquid cooling liquid outlet 130 and the liquid cooling liquid return port 140 are in a connected state, and the coolant returning to the second liquid cooling liquid outlet 130 in the battery area can flow into the liquid cooling liquid return port 140 .

[0059] In another case, the covering component 210 can cover the first liquid-cooling liquid outlet 120 and the liquid-cooling liquid return port 140, and the covering component 210 forms a partition between the first liquid-cooling liquid outlet 120 and the liquid-cooling liquid inlet 110, and the liquid-cooling liquid entering from the liquid-cooling liquid inlet 110 cannot directly enter the first liquid-cooling liquid outlet 120; the covering component 210 can also form a partition between the liquid-cooling liquid return port 140 and the liquid-cooling liquid inlet 110, and the liquid-cooling liquid entering from the liquid-cooling liquid inlet 110 cannot directly enter the liquid-cooling liquid return port 140.

[0060] When the covering component 210 covers the first liquid cooling liquid outlet 120 and the liquid cooling liquid return port 140 , the first liquid cooling liquid outlet 120 and the liquid cooling liquid return port 140 are in a connected state, and the coolant returning to the first liquid cooling liquid outlet 120 in the battery area can flow into the liquid cooling liquid return port 140 .

[0061] In the above embodiment, the covering assembly 210 is provided to directly cover different ports, so that the liquid cooling liquid inlet 110 is connected to different ports, and thus it is possible to enter the battery area from different ports, thereby adjusting the starting position of thermal management.

[0062] In an optional embodiment, the reversing assembly includes a driving assembly 220 connected to the covering assembly 210, and the driving assembly 220 is used to drive the covering assembly 210 to move.

[0063] like Figure 2 As shown, the driving assembly 220 may include: a driving rod 221 connected to the covering assembly 210 , and a driver 222 connected to the driving rod 221 .

[0064] The driver 222 is used to move the driving rod 221 , and the driving rod 221 drives the covering assembly 210 to move.

[0065] In the first state, the covering component 210 can move to the second liquid cooling liquid outlet 130 and the liquid cooling liquid return port 140 to cover the second liquid cooling liquid outlet 130 and the liquid cooling liquid return port 140 to achieve communication between the liquid cooling liquid inlet 110 and the first liquid cooling liquid outlet 120 , and communication between the second liquid cooling liquid outlet 130 and the liquid cooling liquid return port 140 .

[0066] In the first state, the covering component 210 can move to the first liquid cooling liquid outlet 120 and the liquid cooling liquid return port 140 to cover the first liquid cooling liquid outlet 120 and the liquid cooling liquid return port 140 to achieve communication between the liquid cooling liquid inlet 110 and the second liquid cooling liquid outlet 130, and between the first liquid cooling liquid outlet 120 and the liquid cooling liquid return port 140.

[0067] Optionally, the driver 222 may be a motor.

[0068] In another optional embodiment, if Figure 3 As shown, the driving assembly 220 includes: a support rod 223 installed on the covering assembly 210 , and a first baffle 224 and a second baffle 225 arranged at both ends of the support rod 223 .

[0069] The shapes of the first baffle 224 and the second baffle 225 match the cross-sectional shape of the cavity 150 of the main tube 100. The first baffle 224 and the inner side of the cavity 150 form a first sub-cavity 310; the second baffle 225 and the inner side of the cavity 150 form a second sub-cavity 320. For details, please refer to Figure 3 As shown, the first baffle 224 and the first side wall 171 of the cavity 150 form a first sub-cavity 310. Figure 5 As shown, the second baffle 225 and the second side wall 172 of the cavity 150 form a second sub-cavity 320 .

[0070] Among them, after the first sub-cavity 310 is filled, the first baffle 224, the covering assembly 210 and the second baffle 225 are squeezed to one end of the cavity 150, driving the covering assembly 210 to cover one end of the liquid cooling liquid return port 140 and the second liquid cooling liquid outlet 130 connecting the liquid cooling liquid inlet 110, so as to form a partition between the second liquid cooling liquid outlet 130 and the liquid cooling liquid inlet 110, and to form a partition between the liquid cooling liquid return port 140 and the liquid cooling liquid inlet 110.

[0071] Exemplarily, as the first sub-cavity 310 is filled with coolant, the first baffle 224 is pushed to move under the thrust of the coolant, and the first baffle 224 pushes the support rod 223 to move, and the support rod 223 drives the cover assembly 210 and the second baffle 225 to move. The first baffle 224, the cover assembly 210, and the second baffle 225 are squeezed to one end of the cavity 150. When the second baffle 225 abuts against the second side wall 172 of the second sub-cavity 320, the second baffle 225 will no longer be able to move.

[0072] For example, when the second baffle 225 abuts against the second side wall 172 of the second sub-cavity 320, the cover assembly 210 can just cover the second liquid-cooling liquid outlet 130 and the liquid-cooling liquid inlet 110 to form a partition. Figure 4 As shown, the figure shows that the first sub-cavity 310 is filled with cooling liquid, the second baffle 225 is against the second side wall 172 of the second sub-cavity 320, and the covering component 210 can just cover the second liquid cooling liquid outlet 130 and the liquid cooling liquid inlet 110 to form a partition.

[0073] After the second sub-cavity 320 is filled, the first baffle 224, the covering assembly 210 and the second baffle 225 are squeezed to the other end of the cavity 150, driving the covering assembly 210 to cover the end of the liquid cooling liquid return port 140 and the first liquid cooling liquid outlet 120 connecting the liquid cooling liquid inlet 110, so as to form a partition between the first liquid cooling liquid outlet 120 and the liquid cooling liquid inlet 110, and to form a partition between the liquid cooling liquid return port 140 and the liquid cooling liquid inlet 110.

[0074] Exemplarily, as the coolant fills the second sub-cavity 320, the second baffle 225 is pushed to move under the thrust of the coolant, and the second baffle 225 pushes the support rod 223 to move, and the support rod 223 drives the cover assembly 210 and the first baffle 224 to move. The first baffle 224, the cover assembly 210, and the second baffle 225 are squeezed to the other end of the cavity 150. When the first baffle 224 abuts against the first side wall 171 of the first sub-cavity 310, the first baffle 224 will no longer be able to move.

[0075] For example, when the first baffle 224 abuts against the first side wall 171 of the first sub-cavity 310, the cover assembly 210 can just cover the first liquid-cooling liquid outlet 120 and the liquid-cooling liquid inlet 110 to form a partition. Figure 5 As shown, the figure shows that the second sub-cavity 320 is filled with cooling liquid, the first baffle 224 is against the first side wall 171 of the first sub-cavity 310, and the covering component 210 can just cover the first liquid cooling liquid outlet 120 and the liquid cooling liquid inlet 110 to form a partition.

[0076] In one embodiment, the reversing assembly further includes: a first water pipe 226 communicating with the first sub-cavity 310 , a second water pipe 227 communicating with the second sub-cavity 320 , and a water guiding device 228 connected to the first water pipe 226 and the second water pipe 227 and communicating with the liquid cooling liquid inlet 110 .

[0077] like Figure 4 As shown, the first water pipe 226 is connected to the first opening 161 of the main pipe 100. The first opening 161 is provided at the first side wall 171 of the first sub-cavity 310. The second water pipe 227 is connected to the second opening 162 of the main pipe 100. The second opening 162 is provided at the second side wall 172 of the second sub-cavity 320.

[0078] The water guiding device 228 can introduce cooling liquid into the first sub-cavity 310 or the second sub-cavity 320 to adjust the position of the driving component 220 in the main tube 100 .

[0079] The state of the water guiding device 228 may include: the water guiding device 228 is connected to the first water pipe 226 and blocks the second water pipe 227 .

[0080] After the water guiding device 228 is connected to the first water pipe 226 , the water guiding device 228 can guide the liquid into the first sub-cavity 310 to push the first baffle 224 to move.

[0081] The state of the water guiding device 228 may include: the water guiding device 228 is connected to the second water pipe 227 and blocks the first water pipe 226 .

[0082] After the water guiding device 228 is connected to the second water pipe 227 , the water guiding device 228 can guide the liquid into the second sub-cavity 320 to push the second baffle 225 to move.

[0083] In an optional embodiment, the water guiding device 228 may include a reset assembly and a third water pipe 229 connected to the liquid cooling liquid inlet 110 and the reset assembly.

[0084] The third water pipe 229 may be connected to the liquid cooling liquid inlet 110 . When cooling liquid enters the liquid cooling liquid inlet 110 , the cooling liquid entering the liquid cooling liquid inlet 110 may also enter the third water pipe 229 .

[0085] like Figure 6 As shown, the reset assembly may include a tube body 2281 , a valve core 2282 and a first elastic member 2283 installed inside the tube body 2281 , and a magnetic member 2284 installed at the second end outside the tube body 2281 .

[0086] The magnetic member 2284 is magnetic when powered on, and can absorb the valve core 2282 inside the tube body 2281. Figure 6 As shown, the valve core 2282 can squeeze the first elastic member 2283 to block the second water pipe 227. The magnetic member 2284 is not magnetic when not powered, and it cannot absorb the valve core 2282 inside the tube body 2281. Figure 7 As shown, the valve core 2282 can be squeezed to the first end of the tube body 2281 under the elastic force of the first elastic member 2283, and the first end is different from the end where the magnetic member 2284 is located.

[0087] Exemplarily, the first elastic member 2283 may be a spring.

[0088] In this embodiment, one end of the third water pipe 229 is connected to the liquid cooling liquid inlet 110, and the other end of the third water pipe 229 is connected to the pipe body 2281 of the reset assembly.

[0089] The first water pipe 226 is connected to a first end of the tube body 2281 , and the second water pipe 227 is connected to a second end of the tube body 2281 .

[0090] When the reset assembly is powered on, the valve core 2282 compresses the first elastic member 2283 at the second end where the magnetic member 2284 is located under the magnetic force of the magnetic member 2284, thereby blocking the second water pipe 227. The coolant connected to the third water pipe 229 can be Figure 6 In the direction of the arrow shown, the water flows along the tube body 2281 into the first water pipe 226 .

[0091] When the reset assembly is not powered, the valve core 2282 is located at the first end of the tube body 2281 away from the magnetic member 2284 under the action of the first elastic member 2283, blocking the first water pipe 226. The coolant connected to the third water pipe 229 can be Figure 7 In the direction of the arrow shown, the water flows along the tube body 2281 into the second water pipe 227 .

[0092] In the above implementation, the direction of the inlet of the liquid coolant can be adjusted by turning on or off the power under the action of the reset component. Furthermore, since the third water pipe 229 can be directly connected to the liquid coolant inlet 110, it is possible to adjust the inlet position of water flowing into the battery only through the liquid coolant flowing into the liquid cooling system without the need for an additional auxiliary agent to push the first baffle 224 and the second baffle 225.

[0093] In order to facilitate the discharge of the liquid in the first sub-cavity 310 and the second sub-cavity 320, it is possible to consider directly discharging the liquid in the first sub-cavity 310 and the second sub-cavity 320 into the liquid cooling liquid return port 140. Considering that in both states, the cover assembly 210 will cover the liquid cooling liquid return port 140, therefore, a passage can be formed between the first sub-cavity 310 and the liquid cooling liquid return port 140, and a passage can be formed between the second sub-cavity 320 and the liquid cooling liquid return port 140. Based on this, the support rod 223 is a hollow rod, and a through hole connected to the hollow rod is provided on the cover assembly 210.

[0094] Exemplarily, a first through hole is provided at a connection between the first baffle plate 224 and the hollow rod; a second through hole is provided at a connection between the second baffle plate 225 and the hollow rod.

[0095] When the first through hole is not blocked, the liquid in the first sub-cavity 310 can pass through the first through hole and flow into the liquid cooling liquid return port 140 through the hollow rod. When the second through hole is not blocked, the liquid in the second sub-cavity 320 can pass through the second through hole and flow into the liquid cooling liquid return port 140 through the hollow rod.

[0096] A first blocking member 330 is disposed at the first through hole. When the first blocking member 330 is squeezed, the first blocking member 330 blocks the first through hole. When the first blocking member 330 is not squeezed, there is a gap between the first blocking member 330 and the first through hole.

[0097] The second through hole is provided with a second blocking member 340 . When the second blocking member 340 is squeezed, the second through hole is blocked by the second blocking member 340 . When the second blocking member 340 is not squeezed, there is a gap between the second blocking member 340 and the second through hole.

[0098] Alternatively, if Figure 8 and 9 As shown, the cross-section of the first end 331 of the first blocking member is smaller than the cross-section of the hollow rod, and the cross-section of the second end 332 of the first blocking member is not smaller than the cross-section of the hollow rod; the cross-section of the portion connecting the first end 331 of the first blocking member and the second end 332 of the first blocking member is smaller than the cross-section of the first end 331 of the first blocking member.

[0099] Exemplarily, the first blocking member 330 may be a structure with large ends and a thin middle.

[0100] The first end 331 of the first blocking member passes through the first through hole and is embedded in the hollow rod, and the second end 332 of the first blocking member is exposed outside the first through hole.

[0101] A first limiting block 2231 is disposed at the first through hole, and a width of the first limiting block 2231 is smaller than a diameter of the first through hole. The first limiting block 2231 is limited between the first end 331 of the first blocking member and the second end 332 of the first blocking member.

[0102] exist Figure 8 and Fig. 9 In the example shown, two symmetrical first limiting blocks 2231 are disposed at the first through hole.

[0103] Optionally, the hollow rod may be a cylindrical hollow rod, and the first stopper 2231 may be a circular stopper, wherein the inner diameter of the circular stopper is larger than the diameter of the middle portion connecting the two ends of the first blocking member 330, and smaller than the cross-sectional diameter of the first end 331 of the first blocking member.

[0104] When the first blocking member 330 is squeezed, the second end 332 of the first blocking member fills the first through hole; when the first blocking member 330 is not squeezed, there is a gap between the first blocking member 330 and the first through hole.

[0105] Optionally, a second elastic member 350 disposed between the first limiting block 2231 and the second end 332 of the first blocking member may be further included.

[0106] The second elastic member 350 may be a spring.

[0107] exist Figure 8 and Fig. 9 In the example shown, two second elastic members 350 may be provided.

[0108] Taking the case where the hollow rod is a cylindrical hollow rod as an example, the first end 331 of the first blocking member, the second end 332 of the first blocking member, and the middle part connecting the first end and the second end can also be cylindrical. The cross section of the first end 331 of the first blocking member is smaller than the cross section of the hollow rod, which can indicate that the diameter of the cross section of the first end 331 of the first blocking member is smaller than the diameter of the cross section of the hollow rod. The cross section of the second end 332 of the first blocking member is not smaller than the cross section of the hollow rod, which can indicate that the diameter of the cross section of the second end 332 of the first blocking member is equal to the diameter of the cross section of the hollow rod. If the material of the first blocking member 330 is an elastic material, the diameter of the cross section of the second end 332 of the first blocking member can also be slightly larger than the diameter of the cross section of the hollow rod, so that when the second end 332 of the first blocking member is squeezed, the second end 332 of the first blocking member can be interference fit with the hollow rod, and the second end 332 of the first blocking member is plugged in the first through hole of the hollow rod and blocked.

[0109] Of course, the hollow rod may also be in other shapes, for example, it may be a rectangular parallelepiped. Based on the different shapes of the hollow rod, the first blocking member 330 may be in a shape that is adapted to the internal structure of the hollow rod.

[0110] Optionally, the cross-section of the first end of the second blocking member is smaller than the cross-section of the hollow rod, and the cross-section of the second end of the second blocking member is not smaller than the cross-section of the hollow rod; the cross-section of the part connecting the first end of the second blocking member and the second end of the second blocking member is smaller than the cross-section of the first end of the second blocking member.

[0111] Exemplarily, the second blocking member 340 may be a structure with large ends and a thin middle.

[0112] The first end of the second blocking member passes through the second through hole and is embedded in the hollow rod, and the second end of the second blocking member is exposed outside the second through hole;

[0113] A second limiting block is arranged at the second through hole, and the width of the second limiting block is smaller than the diameter of the second through hole, and the second limiting block is limited between the first end of the second blocking member and the second end of the second blocking member.

[0114] When the second blocking member 340 is squeezed, the second end of the second blocking member fills the second through hole; when the second blocking member 340 is not squeezed, there is a gap between the second blocking member 340 and the second through hole.

[0115] Optionally, a third elastic member disposed between the second limiting block and the second end of the second blocking member may also be included.

[0116] The third elastic member may be a spring. Optionally, the second blocking member 340 may also be configured with two third elastic members.

[0117] Taking the case where the hollow rod is a cylindrical hollow rod as an example, the first end of the second blocking member, the second end of the second blocking member, and the middle part connecting the first end and the second end can also be cylindrical. The cross section of the first end of the second blocking member is smaller than the cross section of the hollow rod, which can indicate that the diameter of the cross section of the first end of the second blocking member is smaller than the diameter of the cross section of the hollow rod. The cross section of the second end of the second blocking member is not smaller than the cross section of the hollow rod, which can indicate that the diameter of the cross section of the second end of the second blocking member is equal to the diameter of the cross section of the hollow rod. If the material of the second blocking member 340 is an elastic material, the diameter of the cross section of the second end of the second blocking member can also be slightly larger than the diameter of the cross section of the hollow rod, so that when the second end of the second blocking member is squeezed, the second end of the second blocking member can be interference fit with the hollow rod, and the second end of the second blocking member is plugged in the second through hole of the hollow rod and blocked.

[0118] In this embodiment, the structure of the second blocking member 340 may be similar to that of the first blocking member 330 .

[0119] Through the action of the two blocking members, the liquid in the first sub-cavity 310 and the second sub-cavity 320 can be emptied when needed.

[0120] An embodiment of the present application also provides a liquid cooling system, which may include a liquid cooling reversing device.

[0121] The reversing device of the liquid cooling system provided in the embodiment of the present application may be similar to the reversing device provided in the aforementioned embodiment. For other details about the reversing device of the liquid cooling system, reference may be made to the description in the aforementioned embodiment of the reversing device, which will not be repeated here.

[0122] An embodiment of the present application also provides a battery, which may include: a liquid cooling reversing device of a liquid cooling plate; the liquid cooling reversing device is connected to a first water inlet and a second water inlet on the liquid cooling plate.

[0123] Exemplarily, the first liquid cooling outlet 120 of the liquid cooling reversing device is connected to the first water port on the liquid cooling plate. The second liquid cooling outlet 130 of the liquid cooling reversing device is connected to the second water port on the liquid cooling plate.

[0124] The first water inlet on the liquid cooling plate may be located at a first position of the battery, and the second water inlet on the liquid cooling plate may be located at a second position of the battery.

[0125] The commutation device of the battery provided in the embodiment of the present application may be similar to the commutation device provided in the aforementioned embodiment. For other details about the commutation device of the battery, reference may be made to the description in the aforementioned embodiment of the commutation device, which will not be repeated here.

[0126] Combine the following Figure 4 and Figure 6 The schematic diagram shown is used to illustrate the liquid cooling control of the battery.

[0127] When liquid cooling control is required, the temperature data of each battery cell in the monitoring battery can be obtained. The temperature data may include the lowest temperature of each battery cell in the battery, the highest temperature of each battery cell in the battery, the water inlet temperature of the battery, the water outlet temperature of the battery, the battery working status, the battery thermal management request status, etc.

[0128] The battery thermal management mode may include temperature equalization, battery cooling mode, battery heating mode, etc. The battery thermal management request state may include temperature equalization request, battery cooling request, battery heating request, etc.

[0129] If the current received request is a temperature balance request, the temperature distribution of the battery can be determined through the temperature data. If the temperature of the battery cell near the first position of the battery connected to the first liquid cooling liquid outlet 120 is higher, the temperature of the battery cell near the second position of the battery connected to the second liquid cooling liquid outlet 130 is lower. And the temperature difference between the temperature of the battery cell near the first position and the temperature of the battery cell near the second position exceeds the preset temperature threshold, then the temperature balance request can be used. Figure 4In the state of the first liquid cooling liquid outlet 120 being connected to the liquid cooling liquid inlet 110, the liquid cooling liquid first cools the battery from the first position of the battery. On the contrary, if the temperature of the battery cell near the first position of the battery connected to the first liquid cooling liquid outlet 120 is lower, and the temperature of the battery cell near the second position of the battery connected to the second liquid cooling liquid outlet 130 is higher. And the temperature difference between the temperature of the battery cell near the first position and the temperature of the battery cell near the second position has exceeded the preset temperature threshold, then the battery cooling liquid can be used. Figure 5 The second liquid cooling liquid outlet 130 is connected to the liquid cooling liquid inlet 110, so that the liquid cooling liquid first cools the battery from the second position of the battery.

[0130] The temperature threshold may be a value set as needed, for example, the temperature threshold may be a temperature difference of 3° C., 5° C., etc.

[0131] If a battery cooling request is received, the temperature distribution of the battery can be determined through the temperature data to determine the side of the battery where the temperature of each battery cell is relatively high. If the temperature of the battery cell at the first position of the battery is high, Figure 4 In the state of the first liquid cooling liquid outlet 120 and the liquid cooling liquid inlet 110, the liquid cooling liquid first cools the battery from the first position of the battery. Figure 5 The second liquid cooling liquid outlet 130 is connected to the liquid cooling liquid inlet 110, so that the liquid cooling liquid first cools the battery from the second position of the battery.

[0132] If a battery heating request is received, the temperature distribution of the battery can be determined through the temperature data, and the side of the battery where the temperature of each battery cell is relatively low can be determined. If the temperature of the battery cell at the first position of the battery is low, Figure 4 In the state of the first liquid cooling liquid outlet 120 and the liquid cooling liquid inlet 110, the liquid cooling liquid first heats the battery from the first position of the battery. Figure 5 The second liquid cooling liquid outlet 130 is connected to the liquid cooling liquid inlet 110, so that the liquid cooling liquid first heats the battery from the second position of the battery.

[0133] An embodiment of the present application also provides an electrical device, which may include a battery for providing electrical energy.

[0134] The electrical device may be an electric vehicle.

[0135] The battery of the electric device provided in the embodiment of the present application may be similar to the battery provided in the aforementioned embodiment. For other details about the battery of the electric device, reference may be made to the description in the aforementioned battery embodiment, which will not be repeated here.

[0136] The above description is only an optional embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0137] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A liquid-cooled reversing device, characterized in that: include: Main tube and reversing assembly; A liquid cooling liquid inlet is provided on the first side of the main body tube, and the liquid cooling liquid inlet is used to be connected to a water outlet of a liquid cooling system; The second side of the main body tube is provided with a first liquid cooling liquid outlet, a second liquid cooling liquid outlet and a liquid cooling liquid return port; wherein the first liquid cooling liquid outlet is used to connect with the water inlet at the first position of the battery, the second liquid cooling liquid outlet is used to connect with the water inlet at the second position of the battery, and the liquid cooling liquid return port is used to connect with the water return port of the liquid cooling system; When the reversing component is in a first state, the liquid cooling liquid inlet is connected to the first liquid cooling liquid outlet, and the second liquid cooling liquid outlet is connected to the liquid cooling liquid return port; when the reversing component is in a second state, the liquid cooling liquid inlet is connected to the second liquid cooling liquid outlet, and the first liquid cooling liquid outlet is connected to the liquid cooling liquid return port.

2. The liquid-cooled reversing device according to claim 1, characterized in that: The reversing assembly includes: a covering assembly disposed in a cavity between a first side and a second side of the main body tube; The liquid cooling liquid return port is arranged between the first liquid cooling liquid outlet and the second liquid cooling liquid outlet; The first state includes the covering component covering the end of the liquid coolant return port and the first liquid coolant outlet connecting the liquid coolant inlet to form a partition between the first liquid coolant outlet and the liquid coolant inlet, and forming a partition between the liquid coolant return port and the liquid coolant inlet; The second state includes the covering component covering the liquid cooling liquid return port and one end of the second liquid cooling liquid outlet connecting the liquid cooling liquid inlet to form a partition between the second liquid cooling liquid outlet and the liquid cooling liquid inlet, and forming a partition between the liquid cooling liquid return port and the liquid cooling liquid inlet.

3. The liquid-cooled reversing device according to claim 2, characterized in that: The reversing assembly includes a driving assembly connected to the covering assembly, and the driving assembly is used to drive the covering assembly to move.

4. The liquid-cooled reversing device according to claim 3, characterized in that: The driving assembly comprises: a driving rod connected to the covering assembly, and a driver connected to the driving rod; The driver is used to drive the driving rod to move, and the driving rod drives the covering assembly to move.

5. The liquid-cooled reversing device according to claim 3, characterized in that: The driving assembly comprises: a support rod mounted on the covering assembly, and a first baffle and a second baffle arranged at both ends of the support rod; The shapes of the first baffle and the second baffle match the cross-sectional shape of the cavity of the main tube, and the first baffle and the inner side surface of the cavity form a first sub-cavity; the second baffle and the inner side surface of the cavity form a second sub-cavity; After the first sub-cavity is filled, the first baffle, the covering component and the second baffle are squeezed to one end of the cavity, driving the covering component to cover the end of the liquid cooling liquid return port and the second liquid cooling liquid outlet connected to the liquid cooling liquid inlet, so as to form a partition between the second liquid cooling liquid outlet and the liquid cooling liquid inlet, and between the liquid cooling liquid return port and the liquid cooling liquid inlet; After the second sub-cavity is filled, the first baffle, the covering assembly and the second baffle are squeezed to the other end of the cavity, driving the covering assembly to cover the end of the liquid-cooling liquid return port and the first liquid-cooling liquid outlet connected to the liquid-cooling liquid inlet, so as to form a partition between the first liquid-cooling liquid outlet and the liquid-cooling liquid inlet, and to form a partition between the liquid-cooling liquid return port and the liquid-cooling liquid inlet.

6. The liquid-cooled reversing device according to claim 5, characterized in that: The reversing assembly further includes: a first water pipe communicating with the first sub-cavity, a second water pipe communicating with the second sub-cavity, and a water guide device connected with the first water pipe and the second water pipe and communicating with the liquid cooling liquid inlet; The state of the water guiding device includes: the water guiding device is connected to the first water pipe and blocks the second water pipe; or the water guiding device is connected to the second water pipe and blocks the first water pipe.

7. The liquid-cooled reversing device according to claim 6, characterized in that: The water guiding device comprises a reset assembly and a third water pipe connected to the liquid cooling liquid inlet and the reset assembly; The reset assembly comprises a tube body, a valve core and a first elastic member installed inside the tube body, and a magnetic member installed at a second end outside the tube body; One end of the third water pipe is connected to the liquid cooling liquid inlet, and the other end of the third water pipe is connected to the pipe body of the reset assembly; The first water pipe is connected to the first end of the pipe body, and the second water pipe is connected to the second end of the pipe body; When the reset assembly is in an unpowered state, the valve core is located at the first end of the tube body away from the magnetic part under the action of the first elastic part, thereby blocking the first water pipe; when the reset assembly is in an energized state, the valve core compresses the first elastic part under the action of the magnetic force of the magnetic part and is located at the second end where the magnetic part is located, thereby blocking the second water pipe.

8. The liquid-cooled reversing device according to claim 5, characterized in that: The support rod is a hollow rod, and the cover assembly is provided with a through hole communicating with the hollow rod; A first through hole is provided at the connection between the first baffle plate and the hollow rod; a second through hole is provided at the connection between the second baffle plate and the hollow rod; A first blocking member is disposed at the first through hole, and when the first blocking member is squeezed, the first blocking member blocks the first through hole, and when the first blocking member is not squeezed, there is a gap between the first blocking member and the first through hole; A second blocking member is disposed at the second through hole. When the second blocking member is squeezed, the second blocking member blocks the second through hole. When the second blocking member is not squeezed, a gap exists between the second blocking member and the second through hole.

9. The liquid-cooled reversing device according to claim 8, characterized in that: The cross section of the first end of the first blocking member is smaller than the cross section of the hollow rod, and the cross section of the second end of the first blocking member is not smaller than the cross section of the hollow rod; the cross section of the portion connecting the first end of the first blocking member and the second end of the first blocking member is smaller than the cross section of the first end of the first blocking member; The first end of the first blocking member passes through the first through hole and is embedded in the hollow rod, and the second end of the first blocking member is exposed outside the first through hole; A first limiting block is disposed at the first through hole, and a width of the first limiting block is smaller than a diameter of the first through hole, and the first limiting block is limited between a first end of the first blocking member and a second end of the first blocking member; Wherein, when the first blocking member is squeezed, the second end of the first blocking member fills the first through hole; when the first blocking member is not squeezed, there is a gap between the first blocking member and the first through hole.

10. The liquid-cooled reversing device according to claim 9, characterized in that: It also includes a second elastic member arranged between the first limiting block and the second end of the first blocking member.

11. A liquid cooling system, characterized in that: It comprises the liquid-cooled reversing device as described in any one of claims 1 to 10.

12. A battery, characterized in that: include: A liquid cooling plate and a liquid cooling reversing device according to any one of claims 1 to 10; The liquid cooling reversing device is connected to the first water inlet and the second water inlet on the liquid cooling plate.

13. An electrical device, characterized in that: The battery according to claim 12 is used to provide electrical energy.

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