Liquid cooling plate, liquid cooling plate piping system, and battery system

Abstract

This utility model provides a liquid-cooled plate, a liquid-cooled plate piping system, and a battery system. The liquid-cooled plate includes a liquid-cooled plate body, a liquid inlet self-sealing connector, and a liquid outlet self-sealing connector. The liquid-cooled plate body has a first liquid inlet and a first liquid outlet. The first end of the liquid inlet self-sealing connector is detachably connected to the first liquid inlet; the second end of the liquid inlet self-sealing connector is used to connect to the liquid inlet pipe; the first end of the liquid outlet self-sealing connector is detachably connected to the first liquid outlet; and the second end of the liquid outlet self-sealing connector is used to connect to the liquid outlet pipe. When a single battery pack fails due to the above-described liquid-cooled plate configuration, only the corresponding single liquid-cooled plate needs to be removed for maintenance or replacement, facilitating maintenance and improving operational efficiency. Furthermore, when reinstalling a single liquid-cooled plate, only a new liquid-cooled plate needs to be installed, eliminating the need to refill all liquid-cooled plates with coolant, saving maintenance costs and preventing coolant leakage.

Description

Technical Field

[0001] This utility model relates to the field of liquid cooling technology, and in particular to a liquid cooling plate, a liquid cooling plate piping system, and a battery system. Background Technology

[0002] As the charge and discharge rates of lithium-ion battery energy storage systems continue to increase, the heat generated by these systems is becoming increasingly serious. Traditional air cooling methods are no longer sufficient to meet the heat dissipation requirements of high-power-density battery packs, so liquid cooling is gradually becoming the mainstream choice.

[0003] Liquid cooling plates are typically installed at the bottom of the battery pack, using coolant circulation to remove heat and ensure safe battery operation and extend battery life. However, in existing liquid cooling systems, multiple liquid cooling plates are usually connected in series or parallel. The connection between the piping and the liquid cooling plates usually relies on quick-connect fittings (such as pagoda type, VOSS, and Slam). When one liquid cooling plate or battery pack needs to be replaced, all the coolant in the liquid cooling plates must be drained. This is not only time-consuming and labor-intensive, making maintenance difficult and inconvenient for replacing individual liquid cooling plates or battery packs, but also increases maintenance costs. Furthermore, after replacement, coolant needs to be refilled into the liquid cooling plates, which can easily cause leaks. Utility Model Content

[0004] Therefore, it is necessary to provide a liquid cooling plate, a liquid cooling plate piping system, and a battery system to address the aforementioned technical problems.

[0005] A liquid cooling plate includes: a liquid cooling plate body, a liquid inlet self-sealing connector, and a liquid outlet self-sealing connector, wherein the liquid cooling plate body is provided with a first liquid inlet and a first liquid outlet.

[0006] The first end of the liquid inlet self-sealing connector is detachably connected to the first liquid inlet; the second end of the liquid inlet self-sealing connector is used to connect to the liquid inlet pipe; the first end of the liquid outlet self-sealing connector is detachably connected to the first liquid outlet; and the second end of the liquid outlet self-sealing connector is used to connect to the liquid outlet pipe.

[0007] In one embodiment, the liquid inlet self-sealing connector includes a first self-sealing male connector and a first self-sealing female connector. The first end of the first self-sealing male connector is detachably connected to the first liquid inlet, the first end of the first self-sealing female connector is connected to the liquid inlet pipe, and the second end of the first self-sealing male connector is a plug-in end, which is plugged into the second end of the first self-sealing female connector.

[0008] In one embodiment, the sidewall of the first inlet is provided with an internal thread, the outer side of the first end of the first self-sealing male connector is provided with an external thread, the first end of the first self-sealing male connector is inserted into the first inlet, and the first end of the first self-sealing male connector is threadedly connected to the sidewall of the first inlet.

[0009] In one embodiment, the liquid outlet self-sealing connector includes a second self-sealing male connector and a second self-sealing female connector. The first end of the second self-sealing male connector is detachably connected to the first liquid outlet, and the first end of the second self-sealing female connector is connected to the liquid outlet pipe. The second end of the second self-sealing male connector is a plug-in end, and the second end of the second self-sealing male connector is plugged into the second end of the second self-sealing female connector.

[0010] In one embodiment, the sidewall of the first outlet is provided with an internal thread, the outer side of the first end of the second self-sealing male connector is provided with an external thread, the first end of the second self-sealing male connector is inserted into the first outlet, and the first end of the second self-sealing male connector is threadedly connected to the sidewall of the first outlet.

[0011] A liquid-cooled piping system includes a plurality of liquid-cooled plates as described in any of the above embodiments.

[0012] In one embodiment, the system further includes an inlet pipe, an outlet pipe, and a liquid cooling unit. The liquid cooling unit has a second outlet and a second return port. The first end of the inlet pipe is connected to the second outlet, and the first end of the outlet pipe is connected to the second return port. The second end of the inlet pipe is connected to the first inlet of each liquid cooling plate through a plurality of self-sealing inlet connectors, and the second end of the outlet pipe is connected to the first outlet of each liquid cooling plate through a plurality of self-sealing outlet connectors.

[0013] In one embodiment, the inlet pipe includes a main inlet pipe and multiple branch inlet pipes;

[0014] The first end of the main inlet pipe is connected to the second outlet. The second end of the main inlet pipe is provided with multiple branch ports. The first end of each branch inlet pipe is connected to one of the branch ports. The second end of each branch inlet pipe is detachably connected to the first inlet on the corresponding liquid cooling plate through the self-sealing inlet connector.

[0015] In one embodiment, the outlet pipe includes a main outlet pipe and multiple outlet branch pipes;

[0016] The first end of the main outlet pipe is connected to the second return port. The second end of the main outlet pipe is provided with multiple branch ports. The first end of each branch outlet pipe is connected to one of the branch ports. The second end of each branch outlet pipe is detachably connected to the first outlet port on the corresponding liquid cooling plate through the self-sealing outlet connector.

[0017] A battery system includes a liquid-cooled piping system as described in any of the above embodiments and a plurality of battery packs.

[0018] The aforementioned liquid cooling plate, liquid cooling plate piping system, and battery system are detachably connected to the first liquid inlet via a liquid inlet self-sealing connector, and detachably connected to the first liquid outlet via a liquid outlet self-sealing connector. When a single battery pack cooled by the liquid cooling plate fails, only the corresponding single liquid cooling plate needs to be removed for maintenance or replacement, facilitating maintenance and improving operational efficiency. Furthermore, when reinstalling a single liquid cooling plate, only a new plate needs to be installed; there is no need to refill all liquid cooling plates with coolant, saving maintenance costs and preventing coolant leaks. Moreover, when maintaining or replacing a faulty liquid cooling plate, it is not necessary to remove all the liquid cooling plates in the entire liquid cooling system, thus avoiding secondary disassembly and reassembly of normal liquid cooling plates and ensuring the normal operation of other parallel liquid cooling plates. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the liquid cooling plate in one direction of one embodiment;

[0020] Figure 2 This is a schematic diagram of the structure of the first self-sealing male connector of the liquid cooling plate in one embodiment;

[0021] Figure 3 This is a schematic diagram of the structure of the first self-sealing female connector of the liquid cooling plate in one embodiment;

[0022] Figure 4 This is a schematic cross-sectional view of the first self-sealing male connector and the first self-sealing female connector of the liquid cooling plate in one embodiment.

[0023] Figure 5 This is a schematic diagram of the structure of a liquid cooling piping system in one embodiment.

[0024] In the attached diagram, 10 is the liquid cooling plate; 110 is the liquid cooling plate body; 120 is the liquid inlet self-sealing connector; 130 is the liquid outlet self-sealing connector; 111 is the first liquid inlet; 112 is the first liquid outlet; 121 is the first self-sealing male connector; 122 is the first self-sealing female connector; 131 is the second self-sealing male connector; 132 is the second self-sealing female connector; 20 is the liquid cooling piping system; 210 is the liquid inlet pipe; 220 is the liquid outlet pipe; 610 is the liquid cooling unit; 231 is the second liquid outlet; 232 is the second liquid return port; 211 is the main liquid inlet pipe; 212 is the liquid inlet branch pipe; 310 is the main liquid inlet sub-pipe; 410 is the tee pipe; 221 is the main liquid outlet pipe; 222 is the main liquid outlet branch pipe; 510 is the main liquid outlet sub-pipe. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0026] Example 1

[0027] In this embodiment, as Figures 1 to 2 As shown, a liquid cooling plate 10 is provided, including a liquid cooling plate body 110, a liquid inlet self-sealing connector 120 and a liquid outlet self-sealing connector 130. The liquid cooling plate 10 body is provided with a first liquid inlet 111 and a first liquid outlet 112.

[0028] The first end of the liquid inlet self-sealing connector 120 is detachably connected to the first liquid inlet 111; the second end of the liquid inlet self-sealing connector 120 is used to connect to the liquid inlet pipe 210; the first end of the liquid outlet self-sealing connector 130 is detachably connected to the first liquid outlet 112; and the second end of the liquid outlet self-sealing connector 130 is used to connect to the liquid outlet pipe 220.

[0029] Specifically, the liquid cooling plate 10 has internal cooling channels to guide the flow of coolant. These channels can be serpentine or spiral-shaped to ensure uniform flow of coolant throughout the entire plate, efficiently removing heat. The liquid cooling plate 10 has a first inlet 111 and a first outlet 112. The first end of the self-sealing inlet connector 120 is detachably connected to the first inlet 111, and the second end is connected to the inlet pipe 210. The first end of the self-sealing outlet connector 130 is detachably connected to the first outlet 112. Coolant enters the liquid cooling plate 10 through the inlet pipe 210 and the first inlet 111, removes heat through the cooling channels, and then flows out through the self-sealing outlet connector 130 and the outlet pipe 220. The second end of the liquid outlet self-sealing connector 130 is connected to the liquid outlet pipe 220. The connection method can be a quick-connect design, such as a pagoda type or VOSS connector, to ensure the convenience and reliability of the connection.

[0030] Specifically, the self-sealing joint includes a male and a female connector. The male connector body comprises a conical valve core, a compression spring, and a push rod. The valve core end has an elastic sealing ring (such as PTFE or fluororubber). The female connector has a corresponding valve sleeve built-in, with an embedded return spring and a pressure-resistant sealing ring (such as an O-ring). During connection, the male connector push rod axially compresses the female connector valve sleeve, and the bidirectional valve core moves backward synchronously against the spring preload under mechanical interference, forming a continuous flow channel. The locking mechanism (such as a clamp or thread) fixes the connection. During separation, the spring pushes the male and female valve cores back to their original positions. The male connector sealing ring fits against the conical surface of the valve seat, and the female connector sealing ring presses tightly against the inner wall of the valve sleeve, achieving zero leakage through double elastic sealing. The flow channel opening and closing is controlled by the axial displacement of the valve core and valve sleeve, combined with the spring force and the interference fit of the sealing ring, ensuring dynamic sealing reliability. The inlet self-sealing connector 120 and outlet self-sealing connector 130 are internally equipped with elastic sealing rings or rubber gaskets. When connected to the inlet pipe 210 or outlet pipe 220, the sealing rings form a seal; upon disassembly, they automatically retract, and the spring force causes the valve core of the inlet self-sealing connector 120 or outlet self-sealing connector 130 to reset, thereby preventing coolant leakage. When one of the liquid cooling plates 10 needs maintenance, simply pull out the outlet self-sealing connector 130 and the inlet self-sealing connector 120, and the valve will immediately close, preventing coolant outflow; when a new liquid cooling plate 10 is installed and reconnected, the valve opens, restoring liquid flow. Individual liquid cooling plates 10 can be replaced without draining the coolant from the entire liquid cooling system, reducing maintenance time and costs.

[0031] In this embodiment, the liquid inlet self-sealing connector 120 is detachably connected to the first liquid inlet 111, and the liquid outlet self-sealing connector 130 is detachably connected to the first liquid outlet 112. When a single battery pack cooled by the liquid cooling plate 10 fails, only the corresponding single liquid cooling plate 10 needs to be removed to maintain or replace the faulty battery pack, which facilitates maintenance or replacement and improves operation and maintenance efficiency. In addition, when reinstalling a single liquid cooling plate 10, only a new liquid cooling plate 10 needs to be installed, without refilling all liquid cooling plates 10 with coolant, saving maintenance costs and avoiding coolant leakage. When maintaining or replacing a faulty liquid cooling plate 10, it is not necessary to remove the liquid cooling plates 10 of the entire liquid cooling system, thereby avoiding the secondary disassembly and assembly of normal liquid cooling plates 10 and ensuring the normal operation of other parallel liquid cooling plates 10.

[0032] In one embodiment, such as Figures 1 to 3 As shown, the liquid inlet self-sealing connector 120 includes a first self-sealing male connector 121 and a first self-sealing female connector 122. The first end of the first self-sealing male connector 121 is detachably connected to the first liquid inlet 111, and the first end of the first self-sealing female connector 122 is connected to the liquid inlet pipe 210. The second end of the first self-sealing male connector 121 is a plug-in end, which is plugged into the second end of the first self-sealing female connector 122.

[0033] In this embodiment, the first end of the first self-sealing male connector 121 is connected to the first liquid inlet 111 on the liquid cooling plate 10 via a quick connector or threaded connection. The second end of the first self-sealing male connector 121 is a plug-in end for connecting to the second end of the first self-sealing female connector 122. For example, the plug-in end is a plug structure with a sealing ring, and the outer surface of the plug-in end has a sealing ring groove for installing an elastic sealing ring. Furthermore, the plug-in end has a self-sealing function; when not inserted into the first self-sealing female connector 122, the valve core remains closed under the action of spring force to prevent fluid leakage. The first end of the first self-sealing female connector 122 is connected to the liquid inlet pipe 210. The second end of the first self-sealing female connector 122 is the mating end of the plug-in end, and is a socket structure with a sealing ring groove, containing a sealing ring for mating with the plug-in end of the first self-sealing male connector 121. When not connected to the second end of the first self-sealing male connector 121, the valve core remains closed to prevent fluid leakage. When the connector is inserted into the first self-sealing female connector 122, the internal structure of the first self-sealing female connector 122 pushes the valve core and sealing ring of the first self-sealing male connector 121, causing the valve core to open against the spring force, forming a fluid passage. Simultaneously, the valve core of the first self-sealing female connector 122 also opens under the push of the first self-sealing male connector 121, ensuring unobstructed fluid flow. The sealing rings of the first self-sealing male connector 121 and the first self-sealing female connector 122 are in close contact, forming a sealing surface to ensure no fluid leakage from the connection. For disassembly, hold the sliding sleeve of the first self-sealing male connector 121 and gently pull out the male connector. During the pulling process, the valve cores of the first self-sealing male connector 121 and the first self-sealing female connector 122 return to a closed state under the action of the spring force, preventing fluid leakage.

[0034] It should be understood that when the first self-sealing male connector 121 and the first self-sealing female connector 122 are not connected, their internal valves are closed to prevent coolant leakage. When the second end of the first self-sealing male connector 121 is inserted into the second end of the first self-sealing female connector 122, coolant can flow; under normal operating conditions, coolant flows smoothly through the channel formed by the first self-sealing female connector 122 and the first self-sealing male connector 121. When the first self-sealing male connector 121 is pulled out of the first self-sealing female connector 122, both the first self-sealing male connector 121 and the first self-sealing female connector 122 automatically close to prevent coolant leakage.

[0035] In another embodiment, such as Figure 4As shown, after the first self-sealing male connector 121 is connected to the first self-sealing female connector 122, the conical valve core of the first self-sealing male connector 121 overcomes the internal spring resistance through mechanical pushing action and moves backward synchronously with the floating valve seat of the first self-sealing female connector 122. The axial displacement of the bidirectional valve core forms a continuous flow channel. After the push rod of the first self-sealing male connector 121 is embedded in the guide groove of the first self-sealing female connector 122, the locking mechanism (such as a ball groove or threaded collar) is fixed in the connection state, and the valve core retracts to disengage the sealing ring, allowing the coolant to pass through the polished flow channel without obstruction. When disconnected, the spring pushes the valve core to reset, and the sealing ring is re-tightened to achieve bidirectional sealing, ensuring that the channel is fully open when connected and zero leakage when disconnected.

[0036] In one embodiment, such as Figure 1 and Figure 2 As shown, the side wall of the first liquid inlet 111 is provided with an internal thread, and the outer side of the first end of the first self-sealing male connector 121 is provided with an external thread. The first end of the first self-sealing male connector 121 is inserted into the first liquid inlet 111, and the first end of the first self-sealing male connector 121 is threadedly connected to the side wall of the first liquid inlet 111.

[0037] In this embodiment, the first liquid inlet 111 is located at one end of the liquid cooling plate 10 body and is used for the entry of coolant. The side wall of the first liquid inlet 111 is provided with internal threads for connection with the first self-sealing male connector 121. The outer side of the first end of the first self-sealing male connector 121 is provided with external threads that match the internal threads of the first liquid inlet 111, for threaded connection with the first liquid inlet 111 of the liquid cooling plate 10 body. Specifically, the first end of the first self-sealing male connector 121 is inserted into the first liquid inlet 111 and tightened by the threads to ensure a firm and airtight connection. In another embodiment, a rubber sealing gasket or O-ring is provided at the connection between the first self-sealing male connector 121 and the first liquid inlet 111 to further enhance the sealing effect.

[0038] In one embodiment, such as Figure 1 As shown, the liquid outlet self-sealing connector 130 includes a second self-sealing male connector 131 and a second self-sealing female connector 132. The first end of the second self-sealing male connector 131 is detachably connected to the first liquid outlet 112, and the first end of the second self-sealing female connector 132 is connected to the liquid outlet pipe 220. The second end of the second self-sealing male connector 131 is a plug-in end, which is plugged into the second end of the second self-sealing female connector 132.

[0039] In this embodiment, the first end of the second self-sealing male connector 131 is connected to the first liquid outlet 112 on the liquid cooling plate 10 via a quick connector or threaded connection. The second end of the second self-sealing male connector 131 is a plug-in end, used to connect with the second end of the second self-sealing female connector 132. For example, the plug-in end is a plug structure with a sealing ring, and the outer surface of the plug-in end has a sealing ring groove for installing an elastic sealing ring. Furthermore, the plug-in end has a self-sealing function; when not inserted into the second self-sealing female connector 132, the valve core remains closed under the action of spring force to prevent fluid leakage. The first end of the second self-sealing female connector 132 is connected to the liquid inlet pipe 210. The second end of the second self-sealing female connector 132 is the mating end of the plug-in end, a socket structure with a sealing ring groove, and an internal sealing ring for mating with the plug-in end of the second self-sealing male connector 131. When not connected to the second end of the second self-sealing male connector 131, the valve core remains closed to prevent fluid leakage. When the plug end is inserted into the second self-sealing female connector 132, the internal structure of the second self-sealing female connector 132 pushes the valve core and sealing ring of the second self-sealing male connector 131, causing the valve core to open against the spring force, forming a fluid passage. Simultaneously, the valve core of the second self-sealing female connector 132 also opens under the push of the second self-sealing male connector 131, ensuring unobstructed fluid flow. The sealing rings of the second self-sealing male connector 131 and the second self-sealing female connector 132 are in close contact, forming a sealing surface to ensure that fluid does not leak from the connection. For disassembly, hold the sliding sleeve of the second self-sealing male connector 131 and gently pull it out. During the pulling process, the valve cores of the second self-sealing male connector 131 and the second self-sealing female connector 132 return to the closed state under the action of the spring force, preventing fluid leakage.

[0040] It should be understood that when the second self-sealing male connector 131 and the second self-sealing female connector 132 are not connected, their internal valves are closed to prevent coolant leakage. When the second end of the second self-sealing male connector 131 is inserted into the second end of the second self-sealing female connector 132, coolant can flow; under normal operating conditions, coolant flows smoothly through the channel formed by the second self-sealing female connector 132 and the second self-sealing male connector 131. When the second self-sealing male connector 131 is pulled out of the second self-sealing female connector 132, both the second self-sealing male connector 131 and the second self-sealing female connector 132 automatically close to prevent coolant leakage.

[0041] In one embodiment, such as Figures 1 to 3 As shown, the side wall of the first outlet 112 is provided with an internal thread, and the outer side of the first end of the second self-sealing male connector 131 is provided with an external thread. The first end of the second self-sealing male connector 131 is inserted into the first outlet 112, and the first end of the second self-sealing male connector 131 is threadedly connected to the side wall of the first outlet 112.

[0042] In this embodiment, the first outlet 112 is located at the other end of the liquid cooling plate 10 body and is used for discharging coolant. The sidewall of the first outlet 112 is provided with internal threads for connection with the second self-sealing male connector 131. The outer side of the first end of the second self-sealing male connector 131 is provided with external threads that match the internal threads of the first outlet 112, for threaded connection with the first outlet 112 of the liquid cooling plate 10 body. Specifically, the first end of the second self-sealing male connector 131 is inserted into the first outlet 112 and tightened by thread to ensure a firm and airtight connection. In another embodiment, a rubber sealing gasket or O-ring is provided at the connection between the second self-sealing male connector 131 and the first outlet 112 to further enhance the sealing effect.

[0043] In one embodiment, such as Figure 5 As shown, a liquid cooling piping system 20 is provided, including a plurality of liquid cooling plates 10 as described in any of the above embodiments.

[0044] In one embodiment, such as Figure 5 As shown, the liquid cooling piping system 20 also includes an inlet pipe 210, an outlet pipe 220, and a liquid cooling unit 610. The liquid cooling unit 610 has a second outlet 231 and a second return port 232. The first end of the inlet pipe 210 is connected to the second outlet 231, and the first end of the outlet pipe 220 is connected to the second return port 232. The second end of the inlet pipe 210 is connected to the first inlet port 111 of each liquid cooling plate 10 through a plurality of self-sealing inlet connectors 120. The second end of the outlet pipe 220 is connected to the first outlet port 112 of each liquid cooling plate 10 through a plurality of self-sealing outlet connectors 130.

[0045] In this embodiment, the liquid cooling unit 610 has a second liquid outlet 231 and a second liquid return port 232. The first end of the liquid inlet pipe 210 is connected to the second liquid outlet 231 of the liquid cooling unit 610, and the second end of the liquid inlet pipe 210 is connected to the first liquid inlet 111 of each liquid cooling plate 10 through multiple liquid inlet self-sealing connectors 120. The first end of the liquid outlet pipe 220 is connected to the second liquid return port 232 of the liquid cooling unit 610, and the second end of the liquid outlet pipe 220 is connected to the first liquid outlet 112 of each liquid cooling plate 10 through multiple liquid outlet self-sealing connectors 130. Coolant flows out from the second outlet 231 of the liquid cooler unit 610, enters the liquid cooling plate 10 through the inlet pipe 210 and the inlet self-sealing connector 120, passes through the cooling channel, and after completing the heat and cold energy exchange, flows out of the liquid cooling plate 10 from the first outlet 112 and returns to the liquid cooler unit 610 through the outlet pipe 220 and the second return port 232. This forms a complete cooling circuit, achieving the purpose of heat dissipation. Alternatively, coolant can be diverted from the second outlet 231 of the liquid cooler unit 610 and enter each of the liquid cooling plates 10. After flowing through each liquid cooling plate 10, the coolant returns to the second return port 232 of the liquid cooler unit 610 from the outlet pipe 220. The first end of each inlet self-sealing connector 120 is connected to the second end of the inlet pipe 210, and the second end of each inlet self-sealing connector 120 is detachably connected to the first inlet 111 of the corresponding liquid cooling plate 10. The first end of each self-sealing connector 130 is connected to the second end of the outlet pipe 220, and the second end of each self-sealing connector 130 is detachably connected to the first outlet 112 of the corresponding liquid cooling plate 10. Coolant flows out from the second outlet 231 of the liquid cooling unit 610 and is delivered to each liquid cooling plate 10 through the inlet pipe 210. After entering the liquid cooling plate 10, the coolant undergoes heat exchange through the cooling channels inside the liquid cooling plate, absorbing heat. The coolant then flows out from the first outlet 112 of the liquid cooling plate 10 and returns to the second return outlet 232 of the liquid cooling unit 610 through the outlet pipe 220. This configuration ensures uniform coolant flow distribution and better heat dissipation. It is worth noting that the number of liquid cooling plates can be increased or decreased as needed to adapt to different heat dissipation requirements.

[0046] In one embodiment, such as Figure 5 As shown, the inlet pipe 210 includes a main inlet pipe 211 and multiple inlet branch pipes 212;

[0047] The first end of the main inlet pipe 211 is connected to the second outlet 231. The second end of the main inlet pipe 211 is provided with a plurality of branch ports. The first end of each branch inlet pipe 212 is connected to one of the branch ports. The second end of each branch inlet pipe 212 is detachably connected to the first inlet 111 on the corresponding liquid cooling plate 10 through the self-sealing inlet connector 120.

[0048] In this embodiment, the liquid inlet pipe 210 includes a main liquid inlet pipe 211 and multiple branch liquid inlet pipes 212. The first end of the main liquid inlet pipe 211 is connected to the second liquid outlet 231, while the other end of the main liquid inlet pipe 211 is provided with multiple branch ports. The first end of each branch liquid inlet pipe 212 is connected to its corresponding branch port. That is, multiple branch ports are provided at the second end of the main liquid inlet pipe 211 for connecting the branch liquid inlet pipes 212. Each branch port is equipped with one branch liquid inlet pipe 212. The second end of each branch liquid inlet pipe 212 is detachably connected to the first liquid inlet 111 of the corresponding liquid cooling plate 10 through a liquid inlet self-sealing connector 120. The coolant flows out from the second outlet 231 of the liquid cooler unit 610, and is branched through the main inlet pipe 211 to each inlet branch pipe 212. After passing through the inlet branch pipe 212, the coolant enters the corresponding liquid cooling plate 10 through the inlet self-sealing joint 120 and the first inlet 111. By setting the main inlet pipe 211 and multiple inlet branch pipes 212, each liquid cooling plate 10 forms an independent series branch. The multiple series branches are set in parallel. The coolant is branched from the second outlet 231 of the liquid cooler unit 610 and enters each liquid cooling plate 10 respectively. After flowing in the liquid cooling plate 10, the coolant returns to the second return port 232 of the liquid cooler unit 610 from the outlet pipe 220.

[0049] It is worth mentioning that the second end of the main inlet pipe 211 is equipped with multiple branch ports, and the first end of each branch pipe 212 is connected to the corresponding branch port. The tail end of the branch pipe 212 is detachably connected to the first inlet port 111 of the corresponding liquid cooling plate through the self-sealing inlet connector 120. Therefore, after passing through the main inlet pipe 211, the coolant is distributed to each branch pipe 212 through the branch ports and finally flows into the corresponding liquid cooling plate. When maintenance is required on a specific liquid cooling plate 10, the self-sealing inlet connector 120 only needs to be disconnected from the first inlet port 111 on that liquid cooling plate 10. This operation will not interfere with the normal operation of other liquid cooling plates and avoids coolant leakage. In particular, the connection between the self-sealing inlet connector 120 and the first inlet port 111 can be a threaded connection, which is easy to unscrew with tools during maintenance, thereby enabling individual disassembly and repair of each liquid cooling plate and simplifying the disassembly process.

[0050] In one embodiment, such as Figure 5 As shown, the main inlet pipe 211 includes multiple main inlet sub-pipes 310 and multiple tee pipes 410. A main sub-pipe is provided between two adjacent branch ports. The two ends of each main inlet sub-pipe 310 are respectively connected to the first port of a tee pipe 410. The second port of the tee pipe 410 is connected to the adjacent main inlet sub-pipe 310. The third port of the tee pipe 410 serves as a branch port and is connected to a branch inlet pipe 212.

[0051] In this embodiment, the main inlet pipe 211 includes multiple main inlet sub-pipes 310, which are connected and branched using a T-connector 410. Each main inlet sub-pipe 310 delivers coolant from the liquid cooler unit 610 to the next branch point. The first port of the T-connector 410 connects to both ends of the main inlet sub-pipe 310, serving as the main flow path for the coolant. The second port of the T-connector 410 connects to the adjacent main inlet sub-pipe 310, forming a continuous main inlet pipe 211. The third port of the T-connector 410 serves as a branch port, ensuring that the coolant can flow smoothly into the inlet branch pipe 212 and connects with one of the inlet branch pipes 212 to distribute the coolant to the corresponding liquid cooling plate 10. In this way, the coolant flows to each corresponding liquid cooling plate 10 through multiple main inlet sub-pipes 310, the third port of the T-connector 410, and the inlet branch pipe 212.

[0052] In one embodiment, such as Figure 5 As shown, the liquid outlet pipe 220 includes a main liquid outlet pipe 221 and multiple liquid outlet branch pipes 222;

[0053] The first end of the main outlet pipe 221 is connected to the second return port 232. The second end of the main outlet pipe 221 is provided with a plurality of branch ports. The first end of each branch outlet pipe 222 is connected to a branch port. The second end of each branch outlet pipe 222 is detachably connected to the first outlet port 112 on the corresponding liquid cooling plate 10 through the self-sealing outlet connector 130.

[0054] In this embodiment, the liquid outlet pipe 220 includes a main liquid outlet pipe 221 and multiple branch liquid outlet pipes 222. The first end of the main liquid outlet pipe 221 is connected to the second return port 232, while the other end of the main liquid outlet pipe 221 is provided with multiple branch ports. The first end of each branch liquid outlet pipe 222 is connected to its corresponding branch port. That is, multiple branch ports are provided at the second end of the main liquid outlet pipe 221 for connecting the branch liquid outlet pipes 222. Each branch port is equipped with one branch liquid outlet pipe 222. The second end of each branch liquid outlet pipe 222 is detachably connected to the first liquid outlet 112 of the corresponding liquid cooling plate 10 through a liquid outlet self-sealing connector 130. After energy exchange inside the liquid cooling plate 10, the coolant flows out from the first outlet 112 of the liquid cooling plate 10, flows out through each outlet branch pipe 222, and converges into the outlet main pipe 221. The coolant then passes through the outlet self-sealing joint 130 and the outlet branch pipe 222 after passing through the first outlet 112 and enters the outlet main pipe 221. By setting up the outlet main pipe 221 and multiple outlet branch pipes 222, each liquid cooling plate 10 forms an independent series branch. Multiple series branches are set in parallel. The coolant is diverted from the second outlet 231 of the liquid cooling unit 610 and enters each liquid cooling plate 10 respectively. After flowing in the liquid cooling plate 10, the coolant returns to the second return port 232 of the liquid cooling unit 610 from the outlet pipe 220.

[0055] It is worth mentioning that the second end of the main outlet pipe 221 is equipped with multiple branch ports, and the first end of each branch outlet pipe 222 is connected to the corresponding branch port. The tail end of the branch outlet pipe 222 is detachably connected to the first outlet port 112 on the corresponding liquid cooling plate 10 through the inlet self-sealing connector 120. Therefore, after passing through each branch outlet pipe 222, the coolant converges into the main outlet pipe 221 through the branch port and flows into the liquid cooling unit 610 through the second return port 232. When performing maintenance on the liquid cooling plate 10, it is only necessary to disconnect the inlet self-sealing connector 120 from the first outlet port 112 of the liquid cooling plate 10 to be maintained. This operation will not interfere with other normally operating liquid cooling plates 10 and can prevent coolant leakage. It is particularly noteworthy that the connection between the inlet self-sealing connector 120 and the first outlet port 112 is a threaded connection, so it can be loosened simply by using appropriate tools. This design allows each liquid cooling plate 10 to be repaired independently, and the disassembly process is simple and quick.

[0056] In one embodiment, such as Figure 5 As shown, the main outlet pipe 221 includes multiple main outlet sub-pipes 510 and multiple tee pipes 410. A main outlet sub-pipe 510 is provided between two adjacent branch outlets. The two ends of each main outlet sub-pipe 510 are respectively connected to the first port of a tee pipe 410. The second port of the tee pipe 410 is connected to the adjacent main outlet sub-pipe 510. The third port of the tee pipe 410 serves as a branch outlet and is connected to a branch outlet pipe 222.

[0057] In this embodiment, the main outlet pipe 221 includes multiple main outlet sub-pipes 510, which are connected and branched using a T-connector 410. Each main outlet sub-pipe 510 transports coolant from the liquid cooling plate 10 to the next branch point. The first port of the T-connector 410 connects to both ends of the main outlet sub-pipe 510, serving as the main flow path for the coolant. The second port of the T-connector 410 connects to the adjacent main outlet sub-pipe 510, forming a continuous main outlet pipe 221. The third port of the T-connector 410 serves as a branch port, ensuring that the coolant can flow smoothly out to the main outlet pipe 221 and connects to a branch outlet pipe 222 to collect the coolant. Thus, the coolant flows out to the liquid cooling unit 610 after passing through the branch outlet pipe 222, the third port of the T-connector 410, and the multiple main outlet sub-pipes 510.

[0058] In one embodiment, a battery system is provided, including a liquid-cooled piping system as described in any of the above embodiments and a plurality of battery packs.

[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A liquid-cooled plate, characterized in that, include: The liquid cooling plate body, the liquid inlet self-sealing joint, and the liquid outlet self-sealing joint are provided with a first liquid inlet and a first liquid outlet on the liquid cooling plate body. The first end of the liquid inlet self-sealing connector is detachably connected to the first liquid inlet; the second end of the liquid inlet self-sealing connector is used to connect to the liquid inlet pipe; the first end of the liquid outlet self-sealing connector is detachably connected to the first liquid outlet; and the second end of the liquid outlet self-sealing connector is used to connect to the liquid outlet pipe.

2. The liquid cold plate of claim 1, wherein, The liquid inlet self-sealing connector includes a first self-sealing male connector and a first self-sealing female connector. The first end of the first self-sealing male connector is detachably connected to the first liquid inlet. The first end of the first self-sealing female connector is connected to the liquid inlet pipe. The second end of the first self-sealing male connector is a plug-in end, which is plugged into the second end of the first self-sealing female connector.

3. The liquid cold plate of claim 2, wherein, The side wall of the first liquid inlet is provided with an internal thread, and the outer side of the first end of the first self-sealing male connector is provided with an external thread. The first end of the first self-sealing male connector is inserted into the first liquid inlet, and the first end of the first self-sealing male connector is threadedly connected to the side wall of the first liquid inlet.

4. The liquid cold plate of claim 1, wherein, The liquid outlet self-sealing connector includes a second self-sealing male connector and a second self-sealing female connector. The first end of the second self-sealing male connector is detachably connected to the first liquid outlet. The first end of the second self-sealing female connector is connected to the liquid outlet pipe. The second end of the second self-sealing male connector is a plug-in end, which is plugged into the second end of the second self-sealing female connector.

5. The liquid cold plate of claim 4, wherein, The side wall of the first liquid outlet is provided with an internal thread, and the outer side of the first end of the second self-sealing male connector is provided with an external thread. The first end of the second self-sealing male connector is inserted into the first liquid outlet, and the first end of the second self-sealing male connector is threadedly connected to the side wall of the first liquid outlet.

6. A liquid-cooled tubing system, characterized by, It includes multiple liquid cooling plates as described in any one of claims 1-5.

7. The liquid cooling tube system of claim 6, wherein, It also includes an inlet pipe, an outlet pipe, and a liquid cooling unit. The liquid cooling unit has a second outlet and a second return port. The first end of the inlet pipe is connected to the second outlet, and the first end of the outlet pipe is connected to the second return port. The second end of the inlet pipe is connected to the first inlet of each liquid cooling plate through multiple self-sealing inlet connectors. The second end of the outlet pipe is connected to the first outlet of each liquid cooling plate through multiple self-sealing outlet connectors.

8. The liquid cooling tube system of claim 7, wherein, The inlet pipe includes a main inlet pipe and multiple inlet branch pipes; The first end of the main inlet pipe is connected to the second outlet. The second end of the main inlet pipe is provided with multiple branch ports. The first end of each branch inlet pipe is connected to one of the branch ports. The second end of each branch inlet pipe is detachably connected to the first inlet on the corresponding liquid cooling plate through the self-sealing inlet connector.

9. The liquid cooling tube system of claim 7, wherein, The outlet pipe includes a main outlet pipe and multiple outlet branch pipes; The first end of the liquid outlet main pipe is communicated with the second liquid return port, and a plurality of branch flow ports are arranged on the second end of the liquid outlet main pipe. The first end of each liquid outlet branch pipe is communicated with one of the branch flow ports. The second end of each liquid outlet branch pipe is detachably communicated with the first liquid outlet port on the corresponding liquid cooling plate through the liquid outlet self-sealing joint.

10. A battery system, characterized in that, A liquid cooling pipe system as claimed in any one of claims 6-9 and a plurality of battery packs.

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