Pipeline connecting assembly, battery, power utilization device and energy storage system

Abstract

The embodiment of the utility model provides a pipeline connecting assembly, a battery, a power utilization device and an energy storage system. The pipeline connecting assembly comprises a first connecting piece and a second connecting piece, the second connecting piece is detachably connected with the first connecting piece; the recovery part is fixedly arranged on the first connecting part and located at the joint of the first connecting part and the second connecting part, and the recovery part is configured to recover residual liquid flowing out of the joint of the first connecting part and the second connecting part in the dismounting process of the first connecting part and the second connecting part. The recovery part is arranged at the joint of the first connecting part and the second connecting part, residual liquid flowing out of the joint of the first connecting part and the second connecting part in the disassembly process of the first connecting part and the second connecting part is recovered through the recovery part, refrigerant leakage is prevented, refrigerant leakage waste is reduced, cost is reduced, and safety is improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a pipeline connection assembly, a battery, an electrical device and an energy storage system. Background Art

[0002] In some related technologies, the battery includes a refrigerant pipeline, which is fluidically connected to a refrigerant supply device, and the refrigerant pipeline is used to transport the refrigerant into the battery box to cool the battery cells in the box. When the connection between the refrigerant pipeline and the refrigerant supply device is removed, there is a leakage phenomenon. Utility Model Content

[0003] Some embodiments of the present application provide a pipeline connection assembly, a battery, an electrical device, and an energy storage system for alleviating the problem of liquid leakage.

[0004] Some embodiments of the present application provide a pipe connection assembly, which includes: a first connecting member; a second connecting member detachably connected to the first connecting member; and a recovery member fixed to the first connecting member and located at the junction of the first connecting member and the second connecting member, the recovery member being configured to recover residual liquid flowing out from the junction of the first connecting member and the second connecting member during the disassembly process of the first connecting member and the second connecting member.

[0005] In the above embodiment, the recovery component is arranged at the joint of the first connecting component and the second connecting component. The recovery component recovers the residual liquid flowing out from the joint of the first connecting component and the second connecting component during the disassembly process of the first connecting component and the second connecting component, thereby preventing the leakage of the refrigerant, reducing the leakage and waste of the refrigerant, reducing the cost and improving the safety.

[0006] In some embodiments, the recovery member includes a recovery groove configured to store residual liquid flowing out from a junction of the first connecting member and the second connecting member.

[0007] In the above embodiment, during the disassembly process of the first connecting member and the second connecting member, the recovery groove is used to receive the refrigerant remaining at the junction of the first connecting member and the second connecting member. The leaked refrigerant flows along the recovery groove and is recovered through the recovery groove. This can prevent the refrigerant leakage caused by the disassembly of the first connecting member and the second connecting member, reduce the leakage waste of the refrigerant, reduce costs and improve safety.

[0008] In some embodiments, the recovery member is constructed as a cylindrical structure, and the recovery member cover is arranged at the junction of the first connecting member and the second connecting member.

[0009] In the above embodiment, the recovery member is constructed as a cylindrical structure, which is covered in the circumference of the junction of the first connecting member and the second connecting member, and can provide a refrigerant recovery function in all directions in the circumferential direction, reduce the leakage and waste of refrigerant, reduce costs and improve safety.

[0010] In some embodiments, a recovery groove is provided on an inner wall of the recovery member, and the recovery groove is configured to store residual liquid flowing out from a junction of the first connecting member and the second connecting member.

[0011] In the above embodiment, during the disassembly process of the first connecting member and the second connecting member, the recovery groove is used to receive the refrigerant remaining at the junction of the first connecting member and the second connecting member. The leaked refrigerant flows along the recovery groove and is recovered through the recovery groove. This can prevent the refrigerant leakage caused by the disassembly of the first connecting member and the second connecting member, reduce the leakage waste of the refrigerant, reduce costs and improve safety.

[0012] In some embodiments, the recovery groove is arranged along the inner wall of the recovery member.

[0013] In the above embodiment, the recovery groove is arranged along the inner wall of the recovery part, which can provide the refrigerant recovery function in all directions in the circumferential direction. No matter where the first connecting part and the second connecting part are located, the refrigerant flow can be guided through the recovery groove to recover the refrigerant, thereby reducing the leakage and waste of the refrigerant, reducing costs and improving safety.

[0014] In some embodiments, both the first connector and the second connector have a self-sealing structure, and after the second connector is detached from the first connector, the second connector and the first connector each achieve self-sealing.

[0015] In the above embodiment, after the refrigerant pipeline and the pipeline of the refrigerant supplying equipment are disassembled, one of the first connector and the second connector of the pipeline connecting assembly remains on the refrigerant pipeline, and the other of the first connector and the second connector remains on the pipeline of the refrigerant supplying equipment. The refrigerant pipeline and the pipeline of the refrigerant supplying equipment can be cut off and blocked by the first connector and the second connector. There is no need to discharge the refrigerant in the refrigerant pipeline and the pipeline of the refrigerant supplying equipment, so that the operating steps of discharging the refrigerant and refilling the refrigerant can be appropriately omitted, saving the operating time required for replacing the battery and improving the operating efficiency.

[0016] In some embodiments, the first connecting member includes: a first shell, a first push rod, which is disposed in the first shell; and a first valve core, which is disposed between the first shell and the first push rod. The first valve core and the first push rod are arranged to be relatively movable so that the first sealing end of the first valve core and the second sealing end of the first push rod abut against each other to seal, thereby realizing self-sealing of the first connecting member.

[0017] In the above embodiment, the first connecting member is used to connect the pipeline. When the first sealing end of the first valve core and the second sealing end of the first push rod abut against each other to seal, the refrigerant will not pass through the sealing portion between the first sealing end and the second sealing end, and the pipeline connection assembly is in a cut-off self-sealing state to prevent refrigerant leakage.

[0018] In some embodiments, the first sealing end and the second sealing end are provided with mutually cooperating guiding structures to guide the relative movement of the first valve core and the first push rod.

[0019] In order to make the second sealing end return smoothly and accurately to the abutting sealing state with the first sealing end, the first sealing end and the second sealing end are provided with mutually cooperating guide structures to guide the relative movement of the first valve core and the first push rod, which can reduce the reset deviation of the second sealing end, causing the second sealing end to be misaligned with the first sealing end, resulting in poor sealing at the joint between the second sealing end and the first sealing end, and leakage at the blocking end.

[0020] In some embodiments, the guide structure includes a first inclined surface provided at the first sealing end, and along the movement direction of the second sealing end approaching the first sealing end, the first inclined surface is inclined in a direction close to the central axis of the first shell.

[0021] In the above embodiment, the first inclined surface is inclined in the direction close to the central axis of the first shell. During the movement of the second sealing end in the direction close to the first sealing end, the second sealing end is guided by the first inclined surface to make the second sealing end move toward the central axis of the first shell, so that the second sealing end is made to face the first sealing end as much as possible and enter the inner side of the first sealing end, thereby improving the alignment and sealing effect of the second sealing end and the first sealing end, and reducing the leakage of the sealing end caused by the loose sealing at the joint between the second sealing end and the first sealing end.

[0022] In some embodiments, the guide structure includes a second inclined surface provided at the second sealing end, and along the movement direction of the second sealing end approaching the first sealing end, the second inclined surface is inclined in a direction approaching the central axis of the first shell.

[0023] In the above embodiment, the second inclined surface is inclined in the direction close to the central axis of the first shell. During the movement of the second sealing end toward the direction close to the first sealing end, the second inclined surface guides the second sealing end to make the second sealing end move toward the central axis of the first shell, so that the second sealing end is as close to the first sealing end as possible and enters the inner side of the first sealing end, thereby improving the alignment and sealing effect of the second sealing end and the first sealing end, and reducing the leakage of the sealing end due to the loose sealing at the joint between the second sealing end and the first sealing end.

[0024] In some embodiments, the guide structure includes a first inclined surface provided at the first sealing end and a second inclined surface provided at the second sealing end. Along the movement direction of the second sealing end close to the first sealing end, the first inclined surface and the second inclined surface are both inclined toward a direction close to the central axis of the first shell.

[0025] In the above embodiment, the first inclined surface and the second inclined surface are both inclined in the direction close to the central axis of the first shell. In the process of the second sealing end moving in the direction close to the first sealing end, the first inclined surface and the second inclined surface cooperate with each other to guide the second sealing end so that the second sealing end moves toward the central axis of the first shell, and can reduce the friction between the second sealing end and the first sealing end, so that the second sealing end is made to face the first sealing end as much as possible and enter the inner side of the first sealing end, thereby improving the alignment effect and sealing effect of the second sealing end and the first sealing end, and reducing the leakage of the sealing end due to the loose sealing at the joint between the second sealing end and the first sealing end.

[0026] In some embodiments, the first inclined surface forms a first angle with the central axis of the first shell, the second inclined surface forms a second angle with the central axis of the first shell, and the angle of the first angle is greater than that of the second angle.

[0027] In the above embodiment, the first inclined surface is away from the central axis of the first shell relative to the second inclined surface, and the angle of the first angle is greater than the angle of the second angle, so that the outer first inclined surface has a larger inclination angle, which can provide a stronger guiding force and enable the second sealing end to move toward the central area of ​​the first shell faster, and the inner second inclined surface has a smaller inclination angle, which is conducive to the second inclined surface to stably enter the inner side of the first inclined surface and prevent the second inclined surface from interfering with the first inclined surface.

[0028] In some embodiments, the guide structure includes a first inclined surface provided at the first sealing end, and the first inclined surface is located downstream of the first sealing end along the movement direction of the second sealing end approaching the first sealing end.

[0029] In the above embodiment, the first inclined surface is located downstream of the first sealing end. During the movement of the second sealing end toward the first sealing end, the first inclined surface can guide the movement of the second sealing end ahead of other parts of the first sealing end, so that the second sealing end moves faster and more smoothly toward the center area of ​​the first shell, and tries to make the second sealing end face the first sealing end and enter the inner side of the first sealing end.

[0030] In some embodiments, the guide structure includes a second inclined surface provided at the second sealing end, and along the movement direction of the second sealing end approaching the first sealing end, the second inclined surface is located upstream of the second sealing end.

[0031] In the above embodiment, the second inclined surface is located upstream of the second sealing end. During the movement of the second sealing end toward the first sealing end, the second inclined surface can contact and cooperate with the first sealing end before other parts of the second sealing end to guide the second sealing end, so that the second sealing end can move faster and more smoothly toward the central area of ​​the first shell, and try to make the second sealing end face the first sealing end and enter the inner side of the first sealing end.

[0032] In some embodiments, the first connecting member also includes a first elastic member, which is disposed in the first valve core, wherein the first end of the first elastic member abuts against the first push rod, and the second end of the first elastic member abuts against the first valve core, and the first elastic member is configured to provide a force that causes the second sealing end and the first sealing end to approach and abut against each other.

[0033] In the above embodiment, the first end of the first elastic member abuts against the first push rod, and the second end of the first elastic member abuts against the first valve core. Since the first valve core is fixed in the first housing and the position of the first valve core does not move, the elastic restoring force of the first elastic member can push the first push rod to move, so that the second sealing end of the first push rod and the first sealing end of the first valve core are close to and abut against each other, which can not only provide a force to reset the first push rod, but also improve the sealing effect between the first sealing end and the second sealing end.

[0034] In some embodiments, the second connecting member is configured to provide a force causing the first push rod and the first valve core to generate relative movement during the connection with the first connecting member, so that the second sealing end is separated from the first sealing end.

[0035] In the above embodiment, by connecting and disassembling the second connecting member and the first connecting member, the connection and disassembly between the pipelines can be achieved, and the fluid in the pipeline can be connected after the pipelines are connected. After the pipelines are disconnected, the fluid in the pipeline can be cut off to prevent the fluid in the pipeline from flowing out.

[0036] In some embodiments, the second connecting member includes: a second shell, which is detachably inserted between the first shell and the first valve core; and a second push rod, which is arranged in the second shell, and the second push rod is configured to push the first push rod during the process of inserting the second shell between the first shell and the first valve core, thereby providing a force to separate the second sealing end from the first sealing end.

[0037] In the above embodiment, the second push rod is fixedly arranged in the second housing, and the second housing is inserted between the first housing and the first valve core to realize the connection between the first connecting member and the second connecting member. During the process of the second housing being inserted between the first housing and the first valve core, the second push rod pushes the first push rod, so that the first push rod can move relative to the first valve core, so that the second sealing end is separated from the first sealing end, the sealing part of the first connecting member is opened, and the communication of the first connecting member is realized.

[0038] In some embodiments, the second connecting member also includes a second valve core, which is arranged between the second shell and the second push rod. The second valve core and the second push rod are arranged to be relatively movable so that the third sealing end of the second valve core and the fourth sealing end of the second push rod abut against each other to seal, thereby realizing self-sealing of the second connecting member.

[0039] In the above embodiment, the second connecting member is used to connect the pipeline. When the third sealing end of the second valve core and the fourth sealing end of the second push rod abut against each other to seal, the refrigerant will not pass through the seal between the third sealing end and the fourth sealing end, and the pipeline connection assembly is in a blocked state. When the third sealing end of the second valve core and the fourth sealing end of the second push rod are separated from each other, the refrigerant can pass through the third sealing end and the fourth sealing end, and flow out through the space between the second valve core and the second push rod, and the pipeline connection assembly is in a connected state.

[0040] In some embodiments, the fourth sealing end is configured to separate from the third sealing end and push the second sealing end to separate the second sealing end from the first sealing end during the process of the second shell being inserted between the first shell and the first valve core.

[0041] In the above embodiment, during the process of the second shell being inserted between the first shell and the first valve core, the fourth sealing end is separated from the third sealing end, and the second sealing end is pushed to separate the second sealing end from the first sealing end, and after the first connecting member is connected to the second connecting member, fluid communication between the first connecting member and the second connecting member can be achieved.

[0042] In some embodiments, the second valve core is configured to be pushed by the first valve core during the process of the second housing being inserted between the first housing and the first valve core, so that the third sealing end is away from the fourth sealing end.

[0043] In the above embodiment, during the process of the second shell being inserted between the first shell and the first valve core, the second valve core is simultaneously pushed by the first valve core and moves relative to the second push rod, so that the third sealing end can be separated from the fourth sealing end. Therefore, the connection between the first connecting member and the second connecting member can be realized, and the sealing end of the second connecting member can be opened to realize the fluid connection between the first connecting member and the second connecting member.

[0044] In some embodiments, the second connecting member also includes a second elastic member, which is disposed in the second shell, the first end of the second elastic member abuts against the second valve core, the second end of the second elastic member abuts against the second shell, and the second elastic member is configured to provide a force that causes the third sealing end and the fourth sealing end to approach and abut against each other.

[0045] In the above embodiment, the first end of the second elastic member abuts against the second valve core, and the second end of the second elastic member abuts against the second housing. Since the second push rod is fixed in the second housing and the position of the second push rod does not move, the elastic restoring force of the second elastic member can push the second valve core to move, so that the third sealing end of the second valve core and the fourth sealing end of the second push rod are close to and abut against each other. The provision of the second elastic member can not only provide a force to reset the second valve core, but also improve the sealing effect of the third sealing end and the fourth sealing end.

[0046] Some embodiments of the present application also provide a battery, which includes: a box body; a refrigerant pipeline, which is arranged in the box body, and the end of the refrigerant pipeline extends out of the box body; and the pipeline connecting assembly in any of the above embodiments, which is arranged at the end of the refrigerant pipeline, and the pipeline connecting assembly is configured to fluidically connect the refrigerant pipeline and the refrigerant providing device.

[0047] In the above embodiment, the battery is connected to the refrigerant providing device through the pipe connection assembly, and accordingly has the beneficial effects of the pipe connection assembly.

[0048] Some embodiments of the present application further provide an electrical device, which includes the above-mentioned battery, and the battery is configured to provide electrical energy to the electrical device.

[0049] In the above embodiments, the electrical device includes the above-mentioned battery, and accordingly has the beneficial effects of the battery.

[0050] Some embodiments of the present application further provide an energy storage system, which includes at least one battery as described above, and the energy storage system is configured to provide electrical energy to an electrical device.

[0051] In the above embodiment, the energy storage system includes the above battery, and accordingly has the beneficial effects of the battery.

[0052] Based on the above technical solution, this application has at least the following beneficial effects:

[0053] In some embodiments, a recovery component is disposed at the junction of the first connector and the second connector. The recovery component is used to recover residual liquid flowing out from the junction of the first connector and the second connector during the disassembly process of the first connector and the second connector, thereby preventing leakage of refrigerant, reducing leakage and waste of refrigerant, reducing costs and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0055] Figure 1 is a schematic structural diagram of a vehicle disclosed in some embodiments of the present application;

[0056] Figure 2 is a schematic diagram of an exploded structure of a battery disclosed in some embodiments of the present application;

[0057] Figure 3 is a schematic diagram of an energy storage system disclosed in some embodiments of the present application;

[0058] Figure 4 is a schematic diagram of a pipeline connection assembly disclosed in some embodiments of the present application;

[0059] Figure 5 It is a schematic diagram of the exploded structure of a pipe connection assembly disclosed in some embodiments of the present application;

[0060] Figure 6 is a cross-sectional schematic diagram of a first connecting piece of a pipe connecting assembly disclosed in some embodiments of the present application;

[0061] Figure 7 is a cross-sectional schematic diagram of a second connecting piece of a pipe connecting assembly disclosed in some embodiments of the present application;

[0062] Figure 8 yes Figure 4 An enlarged schematic diagram of the local structure A.

[0063] The drawings are not drawn to scale.

[0064] Marking description: 1-first connecting member; 11-first housing; 12-first push rod; 121-second sealing end; 13-first valve core; 131-first sealing end; 14-first elastic member; 15-third housing; 2-second connecting member; 21-second housing; 22-second push rod; 221-fourth sealing end; 23-second valve core; 231-third sealing end; 24-second elastic member; 25-fourth housing; 3-guide structure; 31-first inclined surface; 32-second inclined surface; 33-third inclined surface; 4-recovery member; 41-recovery groove; a-first angle; b-second angle; 51-first sealing member; 52-second sealing member; 53-third sealing member; 54-fourth sealing member;

[0065] 100-battery; 101-housing; 101a-first housing; 101b-second housing; 102-battery cell; 103-refrigerant pipeline; 104-pipeline connection assembly; 200-vehicle; 201-axle; 202-wheel; 203-motor; 204-controller; 300-energy storage system; 301-battery cluster; 401-main pipeline; 402-first branch pipeline; 403-second branch pipeline. DETAILED DESCRIPTION

[0066] The following detailed description and drawings of the embodiments of the present application are used to illustrate the principles of the present application, but cannot be used to limit the scope of the present application, that is, the present application is not limited to the described embodiments.

[0067] In the description of the present application, it should be noted that, unless otherwise specified, "multiple" means more than two; the terms "upper", "lower", "left", "right", "inside", "outside", etc., indicating the orientation or positional relationship, 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 understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly vertical, but is within the allowable error range. "Parallel" is not strictly parallel, but is within the allowable error range.

[0068] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of this application. In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0069] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric motorcycles and electric cars, as well as aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0070] The battery disclosed in the embodiments of the present application can be used as a power source for electrical devices or as an energy storage element for various energy storage systems.

[0071] In the embodiment where the battery provides electric energy to the electric device, the electric device may be a mobile phone, a portable device, a laptop computer, a battery car, an electric car, a ship, a spacecraft, an electric toy, an electric tool, etc. Among them, the spacecraft may include an airplane, a rocket, a space shuttle, a spacecraft, etc.; the electric toy includes a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc.; the electric tool includes a metal cutting electric tool, a grinding electric tool, an assembly electric tool, and a railway electric tool, etc., such as an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact drill, a concrete vibrator, and an electric planer, etc.

[0072] For the convenience of description, the following embodiments are described by taking a vehicle 200 as an example of an electrical device provided in some embodiments of the present application.

[0073] Please refer to Figure 1 , Figure 1A schematic diagram of the structure of a vehicle 200 provided for some embodiments of the present application. The vehicle 200 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 100 is provided inside the vehicle 200, and the battery 100 may be provided at the bottom, head or tail of the vehicle 200. The battery 100 may be used to power the vehicle 200, for example, the battery 100 may be used as an operating power source for the vehicle 200. The vehicle 200 may also include an axle 201, a wheel 202 connected to the axle 201, and a motor 203 and a controller 204, wherein the motor 203 is used to drive the axle 201 to rotate, the controller 204 is used to control the operation of the motor 203, and the battery 100 may be used to provide electrical energy for the operation of the motor 203 and other components in the vehicle.

[0074] In some embodiments of the present application, the battery 100 can not only serve as an operating power source for the vehicle 200 , but also serve as a driving power source for the vehicle 200 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 200 .

[0075] Please refer to Figure 2 , Figure 2 Schematic diagram of the exploded structure of the battery 100 provided in some embodiments of the present application. The battery 100 includes a box 101 and a battery cell 102, and the battery cell 102 is contained in the box 101. Among them, the box 101 is the main storage space for the battery cell 102. The box 101 includes a first box 101a and a second box 101b, the first box 101a and the second box 101b cover each other, and the first box 101a and the second box 101b jointly define a storage space for accommodating the battery cell 102. The second box 101b may be a hollow structure with one end open, the first box 101a may be a plate-like structure, the first box 101a covers the open side of the second box 101b, so that the first box 101a and the second box 101b together define a storage space; the first box 101a and the second box 101b may also be hollow structures with one side open, the open side of the first box 101a covers the open side of the second box 101b. Of course, the box 101 formed by the first box 101a and the second box 101b may be in a variety of shapes, such as a cylinder or a cuboid. The box 101 is usually made of metal materials, such as steel or aluminum.

[0076] There may be multiple battery cells 102, and the multiple battery cells 102 may be connected in series, in parallel, or in a mixed connection. A mixed connection means that the multiple battery cells 102 are both connected in series and in parallel. The multiple battery cells 102 may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells 102 is accommodated in the box 101. Of course, the battery 100 may also be a battery module formed by connecting multiple battery cells 102 in series, in parallel, or in a mixed connection, and then the multiple battery modules are connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the box 101. The battery 100 may also include other structures. For example, the battery may also include a busbar component for realizing electrical connection between the multiple battery cells 102.

[0077] The battery cell 102 may be a secondary battery or a primary battery, or a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 102 may be cylindrical, flat, rectangular, or in other shapes.

[0078] refer to Figure 3 In the embodiments where batteries are used as energy storage elements of various energy storage systems 300, the energy storage system 300 can be configured as an energy storage box, an energy storage cabinet, an energy storage container, etc. The energy storage system 300 can be used in commercial energy storage power stations, household energy storage scenarios, battery storage and transportation scenarios, and charging electrical devices (e.g., vehicle 200).

[0079] Figure 3 A schematic diagram of the structure of an energy storage system 300 provided in some embodiments of the present application. The energy storage system 300 includes a plurality of battery clusters 301 spaced apart along a first direction X, and each battery cluster 301 includes a plurality of batteries 100 spaced apart along a second direction Y. The first direction X intersects the second direction Y. Optionally, the first direction X is perpendicular to the second direction Y.

[0080] In the above embodiments, the battery 100 generates a large amount of heat during operation, whether it is used as a power source for an electrical device or as an energy storage element for various energy storage systems. Therefore, it is usually necessary to cool the interior of the battery 100. A refrigerant pipeline 103 is usually arranged in the housing 101 of the battery 100. The refrigerant pipeline 103 is connected to an external refrigerant supply device. The refrigerant pipeline 103 transports the refrigerant provided by the refrigerant supply device to the housing 101 to cool the interior of the battery 100.

[0081] by Figure 3For the embodiment of the energy storage system 300 shown, a refrigerant pipeline 103 is provided in each battery 100. The output end of the refrigerant supply device is connected to the main pipeline 401, and the main pipeline 401 is connected to a plurality of first branches 402, each of which provides refrigerant for a battery cluster 301, and each of which is further connected to a plurality of second branches 403, each of which is connected to the refrigerant pipeline 103 of a battery 100.

[0082] The refrigerant provided by the refrigerant providing device flows to the first branch 402 through the main line 401 , and flows to the refrigerant pipeline 103 of the battery 100 through the first branch 402 and the second branch 403 to dissipate heat inside the battery 100 .

[0083] When one or some of the batteries 100 in the energy storage system 300 fail and need to be replaced, the method currently used is to prepare a container for receiving the refrigerant in advance and place the container in a lower position, then open the connection between the refrigerant pipeline 103 of the battery 100 to be removed and the second branch 403, and discharge all the refrigerant in the battery 100; then, remove the battery 100 and install another battery 100 as a replacement; connect the refrigerant pipeline 103 of the newly installed battery 100 to the second branch 403, and inject refrigerant into the newly installed battery 100.

[0084] With the above method, it takes a long time to empty and refill the refrigerant, and the replacement of the battery 100 is time-consuming and cumbersome.

[0085] Based on this, the embodiment of the present application provides a pipeline connection assembly 104, through which the refrigerant pipeline 103 and the pipeline of the refrigerant supply device are connected. After the refrigerant pipeline 103 and the pipeline of the refrigerant supply device are disassembled, one of the first connector 1 and the second connector 2 of the pipeline connection assembly 104 remains on the refrigerant pipeline 103, and the other of the first connector 1 and the second connector 2 remains on the pipeline of the refrigerant supply device, which can cut off and block the refrigerant pipeline 103 and the pipeline of the refrigerant supply device, and there is no need to discharge the refrigerant in the refrigerant pipeline 103 and the pipeline of the refrigerant supply device, so that the operation steps of discharging the refrigerant and refilling the refrigerant can be appropriately omitted, saving the operation time required for replacing the battery 100, and improving the operation efficiency. In addition, the pipeline connection assembly 104 can also prevent leakage caused by loose sealing, reduce the leakage waste of refrigerant, reduce costs, and improve safety.

[0086] In order to disassemble the refrigerant pipeline 103 and the pipeline of the refrigerant providing equipment, the first connector 1 and the second connector 2 of the pipeline connecting assembly 104 need to be separated. This will cause the refrigerant remaining at the joint of the first connector 1 and the second connector 2 to leak out, resulting in a waste of refrigerant and causing safety hazards.

[0087] The pipe connection assembly 104 provided in the embodiment of the present application can also recover leaked refrigerant, reduce the waste of refrigerant leakage, reduce costs and improve safety.

[0088] refer to Figures 4 to 6 In some embodiments, the pipeline connection assembly 104 includes a first connection member 1 and a second connection member 2 .

[0089] The second connecting member 2 is detachably connected to the first connecting member 1 .

[0090] The recovery member 4 is fixed to the first connection member 1 and is located at the junction of the first connection member 1 and the second connection member 2. The recovery member 4 is configured to recover residual liquid flowing out from the junction of the first connection member 1 and the second connection member 2 during the disassembly process of the first connection member 1 and the second connection member 2.

[0091] Although the first connector 1 and the second connector 2 can each block and cut off the fluid in the corresponding pipeline after disassembly, there will be refrigerant residue at the joint of the first connector 1 and the second connector 2. After the first connector 1 and the second connector 2 are disassembled, the refrigerant residue at the joint of the first connector 1 and the second connector 2 will leak out.

[0092] Based on this, in the above embodiment, the recovery component 4 is arranged at the junction of the first connecting component 1 and the second connecting component 2, and the residual liquid flowing out from the junction of the first connecting component 1 and the second connecting component 2 during the disassembly process of the first connecting component 1 and the second connecting component 2 is recovered by the recovery component 4, so as to prevent the leakage of refrigerant, reduce the leakage waste of refrigerant, reduce the cost and improve the safety.

[0093] In some embodiments, the recovery member 4 includes a recovery groove 41 , and the recovery groove 41 is configured to store residual liquid flowing out from the connection between the first connecting member 1 and the second connecting member 2 .

[0094] In the above embodiment, during the disassembly process of the first connecting member 1 and the second connecting member 2, the recovery groove 41 is used to receive the refrigerant remaining at the junction of the first connecting member 1 and the second connecting member 2. The leaked refrigerant flows along the recovery groove 41 and is recovered through the recovery groove 41. This can prevent the refrigerant leakage caused by the disassembly of the first connecting member 1 and the second connecting member 2, reduce the leakage waste of the refrigerant, reduce costs and improve safety.

[0095] In some embodiments, the recovery member 4 is constructed as a cylindrical structure, and the recovery member 4 is disposed at the junction of the first connecting member 1 and the second connecting member 2 .

[0096] In the above embodiment, the recovery member 4 is constructed as a cylindrical structure, which is covered in the circumference of the joint of the first connecting member 1 and the second connecting member 2, and can provide a refrigerant recovery function in all directions in the circumferential direction, reduce the leakage and waste of refrigerant, reduce costs and improve safety.

[0097] In some embodiments, a recovery groove 41 is provided on the inner wall of the recovery member 4 , and the recovery groove 41 is configured to store residual liquid flowing out from the junction of the first connecting member 1 and the second connecting member 2 .

[0098] In the above embodiment, during the disassembly process of the first connecting member 1 and the second connecting member 2, the recovery groove 41 is used to receive the refrigerant remaining at the junction of the first connecting member 1 and the second connecting member 2. The leaked refrigerant flows along the recovery groove 41 and is recovered through the recovery groove 41. This can prevent the refrigerant leakage caused by the disassembly of the first connecting member 1 and the second connecting member 2, reduce the leakage waste of the refrigerant, reduce costs and improve safety.

[0099] In some embodiments, the recovery groove 41 is arranged along the inner wall of the recovery member 4 .

[0100] In the above embodiment, the recovery groove 41 is arranged along the inner wall of the recovery part 4, which can provide a refrigerant recovery function in all directions in the circumferential direction. No matter what position the first connecting part 1 and the second connecting part 2 are located, the refrigerant flow can be guided by the recovery groove 41 to recover the refrigerant, thereby reducing the leakage and waste of the refrigerant, reducing costs and improving safety.

[0101] In some embodiments, the first connector 1 has a self-sealing structure, and the second connector 2 has a self-sealing structure. After the second connector 2 and the first connector 1 are disassembled, the second connector 2 and the first connector 1 each achieve self-sealing.

[0102] In the above embodiment, after the refrigerant pipeline 103 and the pipeline of the refrigerant providing equipment are disassembled, one of the first connector 1 and the second connector 2 of the pipeline connecting assembly 104 remains on the refrigerant pipeline 103, and the other of the first connector 1 and the second connector 2 remains on the pipeline of the refrigerant providing equipment. The refrigerant pipeline 103 and the pipeline of the refrigerant providing equipment can be cut off and blocked by the first connector 1 and the second connector 2, and there is no need to discharge the refrigerant in the refrigerant pipeline 103 and the pipeline of the refrigerant providing equipment, so that the operating steps of discharging the refrigerant and refilling the refrigerant can be appropriately omitted, saving the operating time required for replacing the battery 100 and improving the operating efficiency.

[0103] In some embodiments, the first connecting member 1 includes a first housing 11 , a first push rod 12 and a first valve core 13 .

[0104] The first push rod 12 is disposed in the first housing 11 . The first valve core 13 is disposed between the first housing 11 and the first push rod 12 .

[0105] The first valve core 13 and the first push rod 12 are arranged to be relatively movable so that the first sealing end 131 of the first valve core 13 and the second sealing end 121 of the first push rod 12 abut against each other to seal, thereby realizing self-sealing of the first connecting member 1, or the first sealing end 131 of the first valve core 13 and the second sealing end 121 of the first push rod 12 are separated from each other.

[0106] In the above embodiment, since the first valve core 13 is disposed between the first housing 11 and the first push rod 12, the second sealing end 121 of the first push rod 12 is located inside the first sealing end 131 of the first valve core 13, and the outer circumference of the second sealing end 121 abuts against the inner circumference of the first sealing end 131 to achieve sealing, thereby achieving the self-sealing function of the first connector 1. The second sealing end 121 moves out from the inner side of the first sealing end 131, away from the first sealing end 131, so that the second sealing end 121 can be separated from the first sealing end 131, thereby achieving communication within the first connector 1.

[0107] In the above embodiment, the first connector 1 is used to connect the pipeline. When the first sealing end 131 of the first valve core 13 and the second sealing end 121 of the first push rod 12 abut against each other to seal, the refrigerant will not pass through the seal between the first sealing end 131 and the second sealing end 121, and the pipeline connection assembly 104 is in a cut-off self-sealing state to prevent refrigerant leakage. When the first sealing end 131 of the first valve core 13 and the second sealing end 121 of the first push rod 12 are separated from each other, the refrigerant enters the first valve core 13 through the first sealing end 131, flows out through the space between the first valve core 13 and the first push rod 12, and the pipeline connection assembly 104 is in a connected state.

[0108] In some embodiments, the first connector 1 may be provided in the refrigerant pipeline 103. When the refrigerant pipeline 103 is required to transport the refrigerant, the first sealing end 131 of the first valve core 13 and the second sealing end 121 of the first push rod 12 are separated from each other, and the refrigerant enters the first valve core 13 through the first sealing end 131, and flows to the refrigerant pipeline 103 through the space between the first valve core 13 and the first push rod 12. When the refrigerant pipeline 103 is not required to transport the refrigerant, the first sealing end 131 of the first valve core 13 and the second sealing end 121 of the first push rod 12 abut against each other and seal to block the refrigerant pipeline 103 and prevent the refrigerant in the refrigerant pipeline 103 from flowing out.

[0109] In other embodiments, the first connector 1 may also be provided on a pipeline of a refrigerant supply device, such as the second branch 403. When the second branch 403 is required to transport refrigerant, the first sealing end 131 of the first valve core 13 and the second sealing end 121 of the first push rod 12 are separated from each other, and the refrigerant enters the first valve core 13 through the first sealing end 131 and flows out through the space between the first valve core 13 and the first push rod 12. When the second branch 403 is not required to transport refrigerant, the first sealing end 131 of the first valve core 13 and the second sealing end 121 of the first push rod 12 abut against each other and seal to block the second branch 403 and prevent the refrigerant in the second branch 403 from flowing out.

[0110] In some embodiments, the first sealing end 131 and the second sealing end 121 are provided with mutually matching guide structures 3 to guide the relative movement of the first valve core 13 and the first push rod 12 .

[0111] In the above embodiment, the second sealing end 121 moves in a direction away from the first sealing end 131, so that the second sealing end 121 can be separated from the first sealing end 131. The second sealing end 121 moves in a direction close to the first sealing end 131, so that the second sealing end 121 and the first sealing end 131 can be abutted and sealed with each other. In order to make the second sealing end 121 return smoothly and accurately to the abutting and sealing state with the first sealing end 131, the first sealing end 131 and the second sealing end 121 are provided with mutually cooperating guide structures 3 to guide the relative movement of the first valve core 13 and the first push rod 12, so as to reduce the reset deviation of the second sealing end 121, which may cause the second sealing end 121 and the first sealing end 131 to be misaligned, resulting in a poor seal at the joint between the second sealing end 121 and the first sealing end 131, and leakage at the blocking end.

[0112] In some embodiments, the first housing 11 is a long strip housing, the first valve core 13 is inserted into the first housing 11, and the first valve core 13 is fixedly connected to the first housing 11. The first valve core 13 is a long strip cylindrical structure. The first push rod 12 is movably disposed in the first valve core 13.

[0113] In some embodiments, the guide structure 3 includes an inclined surface disposed on at least one of the first sealing end 131 and the second sealing end 121 .

[0114] In the above embodiment, an inclined surface is provided on at least one of the first sealing end 131 and the second sealing end 121, and the relative movement between the first sealing end 131 and the second sealing end 121 can be guided by the inclined surface, so that the second sealing end 121 can be smoothly reset, the deviation is reduced, the alignment effect and the sealing effect of the second sealing end 121 and the first sealing end 131 are improved, and the leakage of the sealing end caused by the loose sealing at the joint between the second sealing end 121 and the first sealing end 131 is reduced.

[0115] refer to Figure 4 and Figure 8 In some embodiments, the guide structure 3 includes a first inclined surface 31 provided at the first sealing end 131 , and along the movement direction of the second sealing end 121 approaching the first sealing end 131 , the first inclined surface 31 is inclined toward the direction close to the central axis of the first shell 11 .

[0116] In the above embodiment, the first inclined surface 31 is inclined toward the direction close to the central axis of the first shell 11. When the second sealing end 121 moves toward the direction close to the first sealing end 131, the second sealing end 121 is guided by the first inclined surface 31 to move toward the central axis of the first shell 11, so that the second sealing end 121 is as close to the first sealing end 131 as possible and enters the inner side of the first sealing end 131, thereby improving the alignment and sealing effect of the second sealing end 121 and the first sealing end 131, and reducing the leakage of the sealing end due to the loose sealing at the joint between the second sealing end 121 and the first sealing end 131.

[0117] In some embodiments, the guide structure 3 includes a second inclined surface 32 disposed at the second sealing end 121 , and along the movement direction of the second sealing end 121 approaching the first sealing end 131 , the second inclined surface 32 is inclined toward the center axis of the first shell 11 .

[0118] In the above embodiment, the second inclined surface 32 is inclined toward the direction close to the central axis of the first shell 11. When the second sealing end 121 moves toward the direction close to the first sealing end 131, the second inclined surface 32 guides the second sealing end 121 to make the second sealing end 121 move toward the central axis of the first shell 11, and try to make the second sealing end 121 face the first sealing end 131 and enter the inner side of the first sealing end 131, thereby improving the alignment and sealing effect of the second sealing end 121 and the first sealing end 131, and reducing the leakage of the sealing end due to the loose sealing at the joint between the second sealing end 121 and the first sealing end 131.

[0119] In some embodiments, the guide structure 3 includes a first inclined surface 31 provided at the first sealing end 131 and a second inclined surface 32 provided at the second sealing end 121. Along the movement direction of the second sealing end 121 close to the first sealing end 131, the first inclined surface 31 and the second inclined surface 32 are both inclined in a direction close to the central axis of the first shell 11.

[0120] In the above embodiment, the first inclined surface 31 and the second inclined surface 32 are both inclined in the direction close to the central axis of the first shell 11. When the second sealing end 121 moves in the direction close to the first sealing end 131, the first inclined surface 31 and the second inclined surface 32 cooperate with each other to guide the second sealing end 121 so that the second sealing end 121 moves toward the central axis of the first shell 11, and can reduce the friction between the second sealing end 121 and the first sealing end 131, so that the second sealing end 121 is facing the first sealing end 131 as much as possible and enters the inner side of the first sealing end 131, thereby improving the alignment effect and sealing effect of the second sealing end 121 and the first sealing end 131, and reducing the leakage of the sealing end due to the loose sealing at the joint between the second sealing end 121 and the first sealing end 131.

[0121] In some embodiments, the first inclined surface 31 forms a first angle a with the central axis of the first shell 11, and the second inclined surface 32 forms a second angle b with the central axis of the first shell 11. The first angle a is greater than the second angle b.

[0122] In the above embodiment, the first inclined surface 31 is away from the central axis of the first shell 11 relative to the second inclined surface 32, and the angle of the first angle a is greater than the angle of the second angle b, so that the outer first inclined surface 31 has a larger inclination angle, and can provide a stronger guiding force, so that the second sealing end 121 moves faster toward the central area of ​​the first shell 11, and the inner second inclined surface 32 has a smaller inclination angle, which is conducive to the second inclined surface 32 stably entering the inner side of the first inclined surface 31 and preventing the second inclined surface 32 from interfering with the first inclined surface 31.

[0123] In some embodiments, the first valve core 13 is constructed as a cylindrical structure, and the first sealing end 131 extends from the inner wall of the first valve core 13 to the central axis of the first valve core 13, and the guide structure 3 includes a first inclined surface 31, which is located downstream of the first sealing end 131 along the movement direction of the second sealing end 121 close to the first sealing end 131.

[0124] In the above embodiment, the first inclined surface 31 is located downstream of the first sealing end 131. During the movement of the second sealing end 121 toward the first sealing end 131, the first inclined surface 31 can guide the movement of the second sealing end 121 before other parts of the first sealing end 131, so that the second sealing end 121 moves faster and more smoothly toward the center area of ​​the first shell 11, and tries to make the second sealing end 121 face the first sealing end 131 and enter the inner side of the first sealing end 131.

[0125] In some embodiments, the second sealing end 121 is disposed at the first end of the first push rod 12 , and the radial dimension of the second end of the first push rod 12 is smaller than the radial dimension of the second sealing end 121 .

[0126] In the above embodiment, the second sealing end 121 is used to achieve abutment sealing with the first sealing end 131 on the inner side of the first sealing end 131. The second sealing end 121 has a large radial dimension in order to achieve a better seal with the first sealing end 131, while the second end of the first push rod 12 has a small radial dimension, which can increase the space between the first push rod 12 and the first valve core 13, which is beneficial for the refrigerant to pass through between the first push rod 12 and the first valve core 13.

[0127] In some embodiments, the second end of the first push rod 12 forms a tip.

[0128] In some embodiments, the guide structure 3 includes a second inclined surface 32 disposed at the second sealing end 121 , and along the movement direction of the second sealing end 121 approaching the first sealing end 131 , the second inclined surface 32 is located upstream of the second sealing end 121 .

[0129] In the above embodiment, the second inclined surface 32 is located upstream of the second sealing end 121. During the movement of the second sealing end 121 toward the first sealing end 131, the second inclined surface 32 can contact and cooperate with the first sealing end 131 before other parts of the second sealing end 121 to guide the second sealing end 121, so that the second sealing end 121 can move faster and more smoothly toward the center area of ​​the first shell 11, and try to make the second sealing end 121 face the first sealing end 131 and enter the inner side of the first sealing end 131.

[0130] refer to Figure 5 and Figure 6 In some embodiments, the first connector 1 further comprises a first elastic member 14, the first elastic member 14 is disposed in the first valve core 13, the first end of the first elastic member 14 abuts against the first push rod 12, the second end of the first elastic member 14 abuts against the first valve core 13, and the first elastic member 14 is configured to provide a force that causes the second sealing end 121 and the first sealing end 131 to approach and abut against each other. In some embodiments, the first elastic member 14 is disposed at the second end of the first push rod 12.

[0131] In the above embodiment, the first end of the first elastic member 14 abuts against the first push rod 12, and the second end of the first elastic member 14 abuts against the first valve core 13. Since the first valve core 13 is fixed in the first housing 11 and the position of the first valve core 13 does not change, the elastic restoring force of the first elastic member 14 can push the first push rod 12 to move, so that the second sealing end 121 of the first push rod 12 and the first sealing end 131 of the first valve core 13 are close to and abut against each other, which can not only provide a force to reset the first push rod 12, but also improve the sealing effect between the first sealing end 131 and the second sealing end 121.

[0132] In some embodiments, the first elastic member 14 includes a spring.

[0133] In the above embodiment, the elastic restoring force of the first elastic member 14 can push the first push rod 12 to move, so that the second sealing end 121 of the first push rod 12 and the first sealing end 131 of the first valve core 13 are close to each other. In the process of the second sealing end 121 moving toward the first sealing end 131, the second inclined surface 32 can contact and cooperate with the first inclined surface 31 before other parts of the second sealing end 121 to guide, so that the second sealing end 121 moves toward the center area of ​​the first shell 11 faster and smoothly, and the second sealing end 121 is made to face the first sealing end 131 as much as possible and enter the inner side of the first sealing end 131 to prevent the second sealing end 121 and the first sealing end 131 from being misaligned and stuck, resulting in the first elastic member 14 being unable to rebound.

[0134] refer to Figures 4 to 7 In some embodiments, the pipeline connection assembly 104 also includes a second connecting member 2, which is configured to provide a force that causes the first push rod 12 and the first valve core 13 to generate relative movement during the connection with the first connecting member 1, so as to separate the second sealing end 121 from the first sealing end 131.

[0135] In some embodiments, the second connector 2 may be disposed on one of the refrigerant pipeline 103 and the second branch 403 , and correspondingly, the first connector 1 may be disposed on the other of the second branch 403 and the refrigerant pipeline 103 .

[0136] During the process of connecting the second connecting member 2 with the first connecting member 1, the second connecting member 2 provides a force that causes the first push rod 12 and the first valve core 13 to generate relative movement, so that the second sealing end 121 and the first sealing end 131 are separated from each other. After the second connecting member 2 and the first connecting member 1 are connected, the second sealing end 121 and the first sealing end 131 are separated from each other, thereby realizing the connection of the pipeline connection assembly 104.

[0137] During the process of disassembling the second connecting member 2 from the first connecting member 1, the force causing the relative movement between the first push rod 12 and the first valve core 13 is reduced, and the second sealing end 121 and the first sealing end 131 approach each other. After the second connecting member 2 and the first connecting member 1 are completely disassembled, the second sealing end 121 and the first sealing end 131 abut against each other and seal, thereby realizing the sealing function of the pipeline connection assembly 104.

[0138] In the above embodiment, by connecting and disassembling the second connecting member 2 and the first connecting member 1, the connection and disassembly between the pipelines can be achieved, and the fluid in the pipeline can be connected after the pipeline is connected. After the pipeline is disconnected, the fluid in the pipeline can be cut off to prevent the fluid in the pipeline from flowing out.

[0139] In some embodiments, the second connecting member 2 includes a second shell 21 and a second push rod 22 .

[0140] The second housing 21 is detachably inserted between the first housing 11 and the first valve core 13. The second push rod 22 is disposed in the second housing 21, and the second push rod 22 is configured to push the first push rod 12 during the process of the second housing 21 being inserted between the first housing 11 and the first valve core 13, thereby providing a force to separate the second sealing end 121 from the first sealing end 131.

[0141] In the above embodiment, the second push rod 22 is fixedly disposed in the second housing 21, and the second housing 21 is inserted between the first housing 11 and the first valve core 13 to realize the connection between the first connecting member 1 and the second connecting member 2. During the process of the second housing 21 being inserted between the first housing 11 and the first valve core 13, the second push rod 22 pushes the first push rod 12, so that the first push rod 12 can move relative to the first valve core 13, so that the second sealing end 121 and the first sealing end 131 are separated from each other, so that the sealing part of the first connecting member 1 is opened, and the communication of the first connecting member 1 is realized.

[0142] In some embodiments, the second connecting member 2 also includes a second valve core 23, which is arranged between the second shell 21 and the second push rod 22. The second valve core 23 and the second push rod 22 can be relatively moved so that the third sealing end 231 of the second valve core 23 and the fourth sealing end 221 of the second push rod 22 abut against each other to seal, thereby realizing self-sealing of the second connecting member 2, or separating the third sealing end 231 of the second valve core 23 and the fourth sealing end 221 of the second push rod 22 from each other.

[0143] In the above embodiment, the second connector 2 is used to connect the pipeline. When the third sealing end 231 of the second valve core 23 and the fourth sealing end 221 of the second push rod 22 abut against each other to seal, the refrigerant will not pass through the sealing portion between the third sealing end 231 and the fourth sealing end 221, and the pipeline connection assembly 104 is in a blocked state. When the third sealing end 231 of the second valve core 23 and the fourth sealing end 221 of the second push rod 22 are separated from each other, the refrigerant can pass through the third sealing end 231 and the fourth sealing end 221, and flow out through the space between the second valve core 23 and the second push rod 22, and the pipeline connection assembly 104 is in a connected state.

[0144] In some embodiments, the fourth sealing end 221 is configured to separate from the third sealing end 231 and push the second sealing end 121 to separate the second sealing end 121 from the first sealing end 131 during the process of the second shell 21 being inserted between the first shell 11 and the first valve core 13.

[0145] In the above embodiment, during the process of the second shell 21 being inserted between the first shell 11 and the first valve core 13, the fourth sealing end 221 is separated from the third sealing end 231, and the second sealing end 121 is pushed to separate the second sealing end 121 from the first sealing end 131. After the first connecting member 1 is connected to the second connecting member 2, fluid communication between the first connecting member 1 and the second connecting member 2 can be achieved.

[0146] In some embodiments, the guide structure 3 includes a first inclined surface 31 provided at the first sealing end 131, and along the movement direction of the second sealing end 121 close to the first sealing end 131, the first inclined surface 31 is inclined toward the center axis of the first shell 11, and the fourth sealing end 221 is provided with a third inclined surface 33 cooperating with the first inclined surface 31, and along the movement direction of the third sealing end 231 close to the fourth sealing end 221, the third inclined surface 33 is inclined toward the direction away from the center axis of the second shell 21.

[0147] In the above embodiment, along the movement direction of the second sealing end 121 approaching the first sealing end 131, the first inclined surface 31 is inclined toward the central axis of the first shell 11, and along the movement direction of the third sealing end 231 approaching the fourth sealing end 221, the third inclined surface 33 is inclined toward the central axis away from the second push rod 22. During the disassembly of the first connecting member 1 and the second connecting member 2, the fourth sealing end 221 moves relative to the first sealing end 131, and the third inclined surface 33 cooperates with the first inclined surface 31 to guide, so that the fourth sealing end 221 moves faster and smoothly toward the central area of ​​the first shell 11, and the fourth sealing end 221 is as close to the first sealing end 131 as possible, and returns from the inner side of the first sealing end 131 to the inner side of the third sealing end 231.

[0148] In some embodiments, the second valve core 23 is configured to be pushed by the first valve core 13 and move relative to the second push rod 22 during the process of the second shell 21 being inserted between the first shell 11 and the first valve core 13 to separate the third sealing end 231 from the fourth sealing end 221.

[0149] In the above embodiment, when the second shell 21 is inserted between the first shell 11 and the first valve core 13, the second valve core 23 is simultaneously pushed by the first valve core 13 and moves relative to the second push rod 22, so that the third sealing end 231 can be separated from the fourth sealing end 221. Therefore, it is possible to realize the connection between the first connecting member 1 and the second connecting member 2, and open the sealing end of the second connecting member 2 to realize fluid communication between the first connecting member 1 and the second connecting member 2.

[0150] In some embodiments, the second connecting member 2 also includes a second elastic member 24, which is disposed in the second shell 21, the first end of the second elastic member 24 abuts against the second valve core 23, and the second end of the second elastic member 24 abuts against the second shell 21, and the second elastic member 24 is configured to provide a force that causes the third sealing end 231 and the fourth sealing end 221 to approach and abut against each other.

[0151] In the above embodiment, the first end of the second elastic member 24 abuts against the second valve core 23, and the second end of the second elastic member 24 abuts against the second housing 21. Since the second push rod 22 is fixedly arranged in the second housing 21, the position of the second push rod 22 does not move. Therefore, the elastic restoring force of the second elastic member 24 can push the second valve core 23 to move, so that the third sealing end 231 of the second valve core 23 and the fourth sealing end 221 of the second push rod 22 are close to and abut against each other. The provision of the second elastic member 24 can not only provide a force to reset the second valve core 23, but also improve the sealing effect of the third sealing end 231 and the fourth sealing end 221.

[0152] In some embodiments, the second elastic member 24 includes a spring.

[0153] refer to Figure 6 In some embodiments, the first connecting member 1 further includes a third shell 15, which is disposed at one end of the first shell 11 away from the second connecting member 2, and a portion of the third shell 15 is covered on the outside of the first valve core 13, and the third shell 15 is docked with the first shell 11 to cover the first valve core 13 inside.

[0154] refer to Figure 7 In some embodiments, the second connecting member 2 further includes a fourth shell 25 , which is disposed at an end of the second shell 21 away from the first connecting member 1 , and a portion of the fourth shell 25 is covered on the outside of the second shell 21 .

[0155] refer to Figure 4 and Figure 5 In some embodiments, the recovery member 4 is disposed at one end of the first housing 11 close to the second connector 2, the recovery member 4 is formed in a cylindrical structure, and the recovery member 4 is covered on the end of the first housing 11 close to the second connector 2. When the first connector 1 is connected to the second connector 2, the portion where the second housing 21 is combined with the first housing 11 is also located in the recovery member 4.

[0156] A recovery member 4 is provided at one end of the first housing 11 close to the second connector 2, and when the first connector 1 is connected to the second connector 2, the combined portion of the first housing 11 and the second housing 21 is located in the recovery member 4. Therefore, during the disassembly process of the first connector 1 and the second connector 2, if there is residual refrigerant at the joint of the first connector 1 and the second connector 2, it can be recovered by the recovery member 4 to prevent refrigerant leakage.

[0157] In some embodiments, a recovery groove 41 is provided in the recovery member 4. During the disassembly process of the first connection member 1 and the second connection member 2, the recovery groove 41 is used to receive the refrigerant remaining at the junction of the first connection member 1 and the second connection member 2, and the refrigerant leakage flows along the recovery groove 41 and is recovered through the recovery groove 41, which can prevent the refrigerant leakage caused by the disassembly of the first connection member 1 and the second connection member 2.

[0158] In some embodiments, the recovery member 4 is detachably disposed on the first shell 11 .

[0159] refer to Figure 8 In some embodiments, the pipeline connection assembly 104 further includes a first sealing member 51, which is disposed on the outer periphery of the first sealing end 131. The first sealing member 51 is used to achieve sealing between the first valve core 13 and the inner wall of the second housing 21.

[0160] The pipeline connection assembly 104 further includes a second sealing member 52, which is disposed on the outer periphery of the second sealing end 121. The second sealing member 52 is used to achieve sealing between the second sealing end 121 and the first sealing end 131.

[0161] The pipeline connection assembly 104 further includes a third sealing member 53, which is disposed on the outer periphery of the third sealing end 231. The third sealing member 53 is used to achieve sealing between the second valve core 23 and the inner wall of the second housing 21.

[0162] The pipeline connection assembly 104 further includes a fourth sealing member 54, which is disposed on the outer periphery of the fourth sealing end 221. The fourth sealing member 54 is used to achieve sealing between the fourth sealing end 221 and the third sealing end 231.

[0163] Some embodiments of the present application further provide a battery 100 , which includes a housing 101 , a refrigerant pipeline 103 , and a pipeline connection assembly 104 in any of the above embodiments.

[0164] The refrigerant pipeline 103 is disposed in the housing 101 , and an end of the refrigerant pipeline 103 extends out of the housing 101 .

[0165] The pipeline connection assembly 104 is disposed at the end of the refrigerant pipeline 103 , and the pipeline connection assembly 104 is configured as a pipeline connecting the refrigerant pipeline 103 and the refrigerant supply device.

[0166] In the above embodiment, the refrigerant pipeline 103 and the pipeline of the refrigerant supply device are connected by the pipeline connection assembly 104. When the pipeline connection between the refrigerant pipeline 103 and the refrigerant supply device is disassembled, the refrigerant pipeline 103 and the pipeline of the refrigerant supply device are cut off and blocked by the pipeline connection assembly 104, so that the operation steps of discharging the refrigerant and refilling the refrigerant can be appropriately omitted, saving the operation time required for replacing the battery 100, improving the operation efficiency, and the pipeline connection assembly 104 can prevent leakage caused by loose blocking, reduce the waste of refrigerant leakage, reduce costs, and improve safety.

[0167] In some embodiments, the pipeline connection assembly 104 includes a first connector 1 and a second connector 2. One of the first connector 1 and the second connector 2 is connected to the refrigerant pipeline 103, and the other of the first connector 1 and the second connector 2 is connected to the pipeline of the refrigerant providing device.

[0168] During the process of connecting the second connecting member 2 with the first connecting member 1, the second push rod 22 pushes the first push rod 12, so that the first push rod 12 can move relative to the first valve core 13, so that the second sealing end 121 is separated from the first sealing end 131. At the same time, the second valve core 23 is pushed by the first valve core 13 to move relative to the second push rod 22, so that the third sealing end 231 is separated from the fourth sealing end 221, thereby realizing the connection of the pipeline connection assembly 104.

[0169] Combine the following Figures 4 to 8 , some specific embodiments of the pipe connection assembly 104 are described.

[0170] The first connecting member 1 includes a first housing 11 , a first push rod 12 , a first valve core 13 , a first elastic member 14 and a third housing 15 .

[0171] The first push rod 12 is arranged in the first housing 11. The first valve core 13 is arranged between the first housing 11 and the first push rod 12. The first valve core 13 and the first push rod 12 are arranged to be relatively movable, so that the first sealing end 131 of the first valve core 13 and the second sealing end 121 of the first push rod 12 abut against each other to seal or separate. The first elastic member 14 is arranged in the first valve core 13, the first end of the first elastic member 14 abuts against the first push rod 12, and the second end of the first elastic member 14 abuts against the first valve core 13. The first elastic member 14 is configured to provide a force that makes the second sealing end 121 and the first sealing end 131 approach and abut against each other. Part of the third housing 15 is covered on the outside of the first valve core 13, and the third housing 15 and the first housing 11 completely cover the first valve core 13.

[0172] The first sealing end 131 and the second sealing end 121 are provided with a guide structure 3 that cooperates with each other. The guide structure 3 includes a first inclined surface 31 provided at the first sealing end 131 and a second inclined surface 32 provided at the second sealing end 121. Along the movement direction of the second sealing end 121 approaching the first sealing end 131, the first inclined surface 31 is inclined in a direction close to the central axis of the first housing 11. Along the movement direction of the second sealing end 121 approaching the first sealing end 131, the second inclined surface 32 is inclined in a direction close to the central axis of the first housing 11.

[0173] The second connecting member 2 includes a second housing 21 , a second push rod 22 , a second valve core 23 , a second elastic member 24 and a fourth housing 25 .

[0174] The second housing 21 is detachably inserted between the first housing 11 and the first valve core 13. The second push rod 22 is disposed in the second housing 21, and the second valve core 23 is disposed between the second housing 21 and the second push rod 22. The second elastic member 24 is disposed in the second housing 21, and the first end of the second elastic member 24 abuts against the second valve core 23, and the second end of the second elastic member 24 abuts against the second housing 21.

[0175] When the second housing 21 is inserted between the first housing 11 and the first valve core 13, the second push rod 22 pushes the first push rod 12, so that the first push rod 12 moves relative to the first valve core 13, thereby separating the second sealing end 121 from the first sealing end 131. The second valve core 23 is pushed by the first valve core 13 and moves relative to the second push rod 22, so that the third sealing end 231 is separated from the fourth sealing end 221.

[0176] During the disassembly of the first connecting member 1 and the second connecting member 2, the elastic restoring force of the first elastic member 14 pushes the first push rod 12, so that the first push rod 12 moves relative to the first valve core 13, thereby making the second sealing end 121 approach and abut against each other with the first sealing end 131. The elastic restoring force of the second elastic member 24 pushes the second valve core 23, so that the second valve core 23 moves relative to the second push rod 22, thereby making the third sealing end 231 approach and abut against each other with the fourth sealing end 221.

[0177] Some embodiments of the present application further provide a battery, which includes a housing 101, a refrigerant pipeline 103, and a pipeline connection assembly 104 in any of the above embodiments.

[0178] The refrigerant pipeline 103 is disposed in the box 101, and the end of the refrigerant pipeline 103 extends out of the box 101. The pipeline connection assembly 104 is disposed at the end of the refrigerant pipeline 103, and the pipeline connection assembly 104 is configured to fluidically connect the refrigerant pipeline 103 and the refrigerant supply device.

[0179] The battery 100 generates a large amount of heat during operation, and a refrigerant pipeline 103 is arranged in the box 101 of the battery 100. The refrigerant pipeline 103 is connected to an external refrigerant supply device through a pipeline connection assembly 104. The refrigerant pipeline 103 transports the refrigerant provided by the refrigerant supply device to the box 101 to cool the inside of the battery 100. When the connection between the refrigerant pipeline 103 and the refrigerant supply device is removed, the pipeline of the refrigerant pipeline 103 and the refrigerant supply device is cut off and blocked through the pipeline connection assembly 104, so that the operation steps of discharging the refrigerant and refilling the refrigerant can be appropriately omitted, saving the operation time required for replacing the battery 100, improving the operation efficiency, and preventing the leakage caused by the loose sealing at the pipeline connection assembly 104, reducing the waste of refrigerant leakage, reducing costs, and improving safety.

[0180] Some embodiments of the present application further provide an electrical device, which includes the battery 100 in any of the above embodiments, and the battery 100 is configured to provide electrical energy to the electrical device.

[0181] In the above embodiment, the battery 100 in the electrical device generates a large amount of heat during operation, and a refrigerant pipeline 103 is arranged in the box 101 of the battery 100. The refrigerant pipeline 103 is connected to an external refrigerant supply device through a pipeline connection assembly 104. The refrigerant pipeline 103 transports the refrigerant provided by the refrigerant supply device to the box 101 to cool and dissipate the heat inside the battery 100. When the connection between the refrigerant pipeline 103 and the refrigerant supply device is removed, the pipeline of the refrigerant pipeline 103 and the refrigerant supply device is cut off and blocked through the pipeline connection assembly 104, so that the operation steps of discharging the refrigerant and refilling the refrigerant can be appropriately omitted, saving the operation time required for replacing the battery 100, improving the operation efficiency, and preventing the leakage caused by the loose sealing at the pipeline connection assembly 104, reducing the waste of refrigerant leakage, reducing costs, and improving safety.

[0182] Some embodiments of the present application further provide an energy storage system 300, which includes at least one battery 100 according to any of the above embodiments, and the energy storage system 300 is configured to provide electrical energy to an electrical device.

[0183] In the above embodiment, a refrigerant pipeline 103 is provided in each battery 100 in the energy storage system 300, and the output end of the refrigerant supply device is connected to the main pipeline 401, and the main pipeline 401 is connected to a plurality of first branches 402, each first branch 402 correspondingly provides refrigerant for a battery cluster 301, and each first branch 402 is also connected to a plurality of second branches 403, and each second branch 403 is correspondingly connected to the refrigerant pipeline 103 of a battery 100. The refrigerant pipeline 103 is connected to the second branch 403 through the pipeline connection assembly 104, and the refrigerant pipeline 103 transports the refrigerant provided by the refrigerant supply device to the box 101 to cool and dissipate heat inside the battery 100.

[0184] When the connection between the refrigerant pipeline 103 and the second branch 403 is disassembled, the refrigerant pipeline 103 and the second branch 403 are cut off and sealed through the pipeline connection assembly 104, and leakage caused by loose sealing can be prevented, thereby reducing the waste of refrigerant leakage, reducing costs and improving safety.

[0185] Through the description of the above embodiments, the pipeline connection assembly 104 can connect the pipe bodies at both ends. The first connection member 1 and the second connection member 2 of the pipeline connection assembly 104 are detachable, which can reduce maintenance costs.

[0186] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A pipe connection assembly, characterized in that: include: A first connecting member (1); A second connecting member (2) detachably connected to the first connecting member (1); as well as A recovery member (4) is fixedly arranged on the first connecting member (1) and is located at a junction between the first connecting member (1) and the second connecting member (2), wherein the recovery member (4) is configured to recover residual liquid flowing out from the junction between the first connecting member (1) and the second connecting member (2) during the disassembly process of the first connecting member (1) and the second connecting member (2).

2. The pipe connection assembly according to claim 1, characterized in that: The recovery member (4) comprises a recovery groove (41), and the recovery groove (41) is configured to store residual liquid flowing out from the connection point between the first connecting member (1) and the second connecting member (2).

3. The pipe connection assembly according to claim 1, characterized in that: The recovery member (4) is constructed as a cylindrical structure, and the recovery member (4) is provided at the junction of the first connecting member (1) and the second connecting member (2).

4. The pipe connection assembly according to claim 3, characterized in that: The inner wall of the recovery member (4) is provided with a recovery groove (41), and the recovery groove (41) is configured to store residual liquid flowing out from the connection point between the first connecting member (1) and the second connecting member (2).

5. The pipe connection assembly according to claim 4, characterized in that: The recovery groove (41) is arranged in a circle along the inner wall of the recovery member (4).

6. The pipe connection assembly according to any one of claims 1 to 5, characterized in that: The first connecting member (1) and the second connecting member (2) both have a self-sealing structure. After the second connecting member (2) and the first connecting member (1) are disassembled, the second connecting member (2) and the first connecting member (1) each achieve self-sealing.

7. The pipe connection assembly according to claim 6, characterized in that: The first connecting member (1) comprises: The first housing (11), a first push rod (12) disposed in the first shell (11); and A first valve core (13) is arranged between the first housing (11) and the first push rod (12), and the first valve core (13) and the first push rod (12) are arranged to be relatively movable, so that a first sealing end (131) of the first valve core (13) and a second sealing end (121) of the first push rod (12) abut against each other to seal, thereby realizing self-sealing of the first connecting member (1).

8. The pipe connection assembly according to claim 7, characterized in that: The first sealing end (131) and the second sealing end (121) are provided with mutually matching guide structures (3) to guide the relative movement of the first valve core (13) and the first push rod (12).

9. The pipe connection assembly according to claim 8, characterized in that: The guide structure (3) comprises a first inclined surface (31) provided at the first sealing end (131), and along the movement direction of the second sealing end (121) approaching the first sealing end (131), the first inclined surface (31) is inclined in a direction approaching the central axis of the first shell (11).

10. The pipe connection assembly according to claim 8, characterized in that: The guide structure (3) comprises a second inclined surface (32) provided at the second sealing end (121), and along the movement direction of the second sealing end (121) approaching the first sealing end (131), the second inclined surface (32) is inclined in a direction approaching the central axis of the first shell (11).

11. The pipe connection assembly according to claim 8, characterized in that: The guide structure (3) comprises a first inclined surface (31) provided at the first sealing end (131) and a second inclined surface (32) provided at the second sealing end (121), and along the movement direction of the second sealing end (121) approaching the first sealing end (131), the first inclined surface (31) and the second inclined surface (32) are both inclined in a direction approaching the central axis of the first shell (11).

12. The pipe connection assembly according to claim 11, characterized in that: The first inclined surface (31) forms a first angle (a) with the central axis of the first shell (11), and the second inclined surface (32) forms a second angle (b) with the central axis of the first shell (11), and the first angle (a) is greater than the second angle (b).

13. The pipe connection assembly according to claim 8, characterized in that: The guide structure (3) comprises a first inclined surface (31) provided at the first sealing end (131), and along the movement direction of the second sealing end (121) approaching the first sealing end (131), the first inclined surface (31) is located downstream of the first sealing end (131).

14. The pipe connection assembly according to claim 8, characterized in that: The guide structure (3) comprises a second inclined surface (32) provided at the second sealing end (121), and along the movement direction of the second sealing end (121) approaching the first sealing end (131), the second inclined surface (32) is located upstream of the second sealing end (121).

15. The pipe connection assembly according to claim 8, characterized in that: The first connecting member (1) further comprises a first elastic member (14), wherein the first elastic member (14) is arranged in the first valve core (13), wherein a first end of the first elastic member (14) abuts against the first push rod (12), and a second end of the first elastic member (14) abuts against the first valve core (13), and the first elastic member (14) is configured to provide a force for bringing the second sealing end (121) and the first sealing end (131) closer to and abutting against each other.

16. The pipe connection assembly according to claim 7, characterized in that: The second connecting member (2) is configured to provide a force causing the first push rod (12) and the first valve core (13) to generate relative movement during the connection process with the first connecting member (1), so as to separate the second sealing end (121) from the first sealing end (131).

17. The pipe connection assembly according to claim 16, characterized in that: The second connecting member (2) comprises: a second housing (21) detachably inserted between the first housing (11) and the first valve core (13); and A second push rod (22) is disposed in the second housing (21), and the second push rod (22) is configured to push the first push rod (12) during the process of the second housing (21) being inserted between the first housing (11) and the first valve core (13), thereby providing a force for separating the second sealing end (121) from the first sealing end (131).

18. The pipe connection assembly according to claim 17, characterized in that: The second connecting member (2) further comprises a second valve core (23), the second valve core (23) being arranged between the second housing (21) and the second push rod (22), the second valve core (23) and the second push rod (22) being arranged to be relatively movable, so that a third sealing end (231) of the second valve core (23) and a fourth sealing end (221) of the second push rod (22) abut against each other to seal, thereby realizing self-sealing of the second connecting member (2).

19. The pipe connection assembly according to claim 18, characterized in that: The fourth sealing end (221) is configured to separate from the third sealing end (231) and to push the second sealing end (121) during the process of the second housing (21) being inserted between the first housing (11) and the first valve core (13) so as to separate the second sealing end (121) from the first sealing end (131).

20. The pipe connection assembly according to claim 18, characterized in that: The second valve core (23) is configured to be pushed by the first valve core (13) during the process of the second housing (21) being inserted between the first housing (11) and the first valve core (13) so as to move the third sealing end (231) away from the fourth sealing end (221).

21. The pipe connection assembly according to claim 18, characterized in that: The second connecting member (2) further comprises a second elastic member (24), wherein the second elastic member (24) is arranged in the second housing (21), wherein a first end of the second elastic member (24) abuts against the second valve core (23), and a second end of the second elastic member (24) abuts against the second housing (21), and the second elastic member (24) is configured to provide a force for bringing the third sealing end (231) and the fourth sealing end (221) closer to and abutting against each other.

22. A battery, characterized in that: include: Box (101); A refrigerant pipeline (103) is arranged in the box (101), and an end of the refrigerant pipeline (103) extends out of the box (101); and According to any one of claims 1 to 21, the pipeline connection assembly is arranged at the end of the refrigerant pipeline (103), and the pipeline connection assembly is configured to fluidically connect the refrigerant pipeline (103) and a refrigerant providing device.

23. An electrical device, characterized in that: The battery according to claim 22 is configured to provide electrical energy to the electrical device.

24. An energy storage system, characterized in that: Comprising at least one battery according to claim 22, the energy storage system is configured to provide electrical energy to an electrical device.

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