Sealing joint and energy storage system

Abstract

The utility model discloses a sealing joint and an energy storage system, and belongs to the technical field of energy storage equipment, the sealing joint is used for connecting a liquid cooling pipeline of an energy storage cabinet, and the sealing joint comprises a first joint; at least part of the second connector can be arranged on the first connector in a sleeving mode; the slipknot flange is connected with the first connector, a first assembling groove is formed in the slipknot flange, and the slipknot flange can be arranged on at least part of the second connector in a sleeving mode; the positioning column is connected with the second connector, and the positioning column can be arranged in the first assembling groove so as to be connected with the first connector and the second connector in a sealed mode; the relative positions of the first connector and the second connector are fixed and the first connector and the second connector are sealed through the cooperation of the positioning column and the first assembling groove, so that the steps needed by pipeline or cable connection are reduced, the connection mode is simplified, and the connection efficiency is improved.

Description

Technical Field

[0001] This application belongs to the technical field of energy storage devices, and particularly relates to a sealing joint and an energy storage system. Background Art

[0002] An energy storage cabinet is a device for storing and releasing energy, and is usually used for energy storage and regulation in a power system. Heat is generated during the charging and discharging processes of the energy storage cabinet, so a cooling system is usually required to control the temperature. With the increasing demand for liquid cooling solutions and fire protection in the energy storage market, the protection and sealing level of liquid cooling pipelines is also increasing. Currently, for the joints of liquid cooling pipelines, a protection solution of screws plus sealing rings is mostly adopted, and the connection efficiency is relatively low. Summary of the Utility Model

[0003] Utility Model Purpose: The embodiments of this application provide a sealing joint, aiming to solve the technical problem of relatively low connection efficiency existing in the current protection solution of screws plus sealing rings; another purpose of this application is to provide an energy storage system.

[0004] Technical Solution: The sealing joint described in the embodiments of this application is used to connect the liquid cooling pipeline of an energy storage cabinet, and the sealing joint includes:

[0005] A first joint;

[0006] A second joint, at least part of which can be sleeved on the first joint;

[0007] A quick-release flange, connected to the first joint, the quick-release flange is provided with a first assembly groove, and the quick-release flange can be sleeved on at least part of the second joint;

[0008] A positioning post, connected to the second joint, and the positioning post can be arranged in the first assembly groove to seal and connect the first joint and the second joint.

[0009] In some embodiments, the quick-release flange is provided with a second assembly groove, the quick-release flange includes a first end and a second end, the first end and the second end are spaced apart along a first direction, the first direction corresponds to the direction in which the second joint is sleeved on the first joint, the second assembly groove extends from the first end to the second end and communicates with the first assembly groove, and the second assembly groove and the first assembly groove are arranged along the outer peripheral direction of the quick-release flange.

[0010] In some embodiments, the extending direction of the second assembly groove is inclined to the first direction, and the second assembly groove is used for sliding cooperation with the positioning post to enable the quick-release flange to rotate relative to the second joint.

[0011] In some embodiments, the quick-release flange is rotatably connected to the first joint.

[0012] In some embodiments, the first joint is provided with a clamping groove, the clamping groove extends along the outer periphery of the first joint, and the quick-release flange includes:

[0013] A body part sleeved on the first joint;

[0014] A clamping part, at least partially arranged in the clamping groove, and the clamping part is connected to the body part.

[0015] In some embodiments, the second assembly groove extends along the first direction.

[0016] In some embodiments, the number of the second assembly grooves, the first assembly grooves, and the positioning columns are all provided with a plurality, each second assembly groove communicates with one first assembly groove, and each positioning column is arranged in one first assembly groove.

[0017] In some embodiments, the sealing joint further includes a sealing gasket, the sealing gasket is arranged in the second joint and connected to the second joint, the first joint abuts against the sealing gasket, and is hermetically connected to the second joint through the sealing gasket.

[0018] In some embodiments, a boss is arranged on the inner wall of the second joint, the sealing gasket is located on one side of the boss close to the first joint and connected to the boss.

[0019] In some embodiments, the sealing gasket is made of an elastic material.

[0020] Correspondingly, an energy storage system according to an embodiment of the present application includes:

[0021] An energy storage cabinet;

[0022] A plurality of liquid cooling pipelines arranged in the energy storage cabinet;

[0023] The above-mentioned sealing joint, the sealing joint connects two adjacent liquid cooling pipelines.

[0024] Beneficial effects: The sealing joint in the embodiment of the present application realizes the connection between the first joint and the second joint through the insertion of the positioning column and the first assembly groove, eliminating the step of individually installing screws in the prior art, reducing the steps required for pipeline or cable connection, simplifying the connection method, and facilitating the improvement of connection efficiency. At the same time, the inserted part of the first joint and the second joint is located inside the quick-release flange, playing a protective role and reducing the entry of external impurities. In addition, the first assembly groove structure is arranged on the quick-release flange, enabling the contact surface between the first joint and the second joint to remain intact, avoiding the destruction of the integrity of the contact surface between the first joint and the second joint due to the setting of the first assembly groove, and facilitating the improvement of the sealing performance of the connection between the first joint and the second joint.

[0025] The energy storage system in the embodiment of the present application includes the above-mentioned sealing joint, so it can have all the technical features and beneficial effects of the above-mentioned sealing joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0027] Figure 1 Schematic three-dimensional structure diagram of the sealing joint provided by the embodiment of the present application;

[0028] Figure 2 Schematic three-dimensional structure diagram of the second joint provided by the embodiment of the present application;

[0029] Figure 3 Schematic three-dimensional structure diagram of the first joint provided by the embodiment of the present application;

[0030] Figure 4 Cross-sectional view of the sealing joint provided by the embodiment of the present application;

[0031] Figure 5 Schematic diagram of another structure of the second assembly groove provided by the embodiment of the present application;

[0032] Figure 6 Schematic diagram of another distribution quantity of the second assembly groove and the first assembly groove provided by the embodiment of the present application;

[0033] Reference numerals: 1, first joint; 10, card slot; 2, second joint; 21, boss; 3, quick-release flange; 31, body part; 311, first end; 312, second end; 313, first assembly groove; 314, second assembly groove; 32, clamping part; 4, positioning column; 5, sealing gasket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts belong to the scope of protection of the present application.

[0035] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "height", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In the description of the present application, "a plurality of" means two or more, and at least one means one, two or more, unless otherwise specifically defined. The axial direction is along the axis of the object or parallel to the axis direction. For example, in a cylinder, the axial direction refers to the direction along the central axis of the cylinder.

[0036] It should also be noted that in the accompanying drawings of the embodiments of the present application, an arrow marked with X represents the first direction X. The introduction of the first direction X is to more clearly describe the structure and relative position relationship of each component in the sealing joint. In actual applications, the first direction X may change according to the different placement methods of the sealing joint.

[0037] As a preamble to the embodiments of the present application, at present, for various pipeline and cable joints, a protection scheme of screws plus sealing rings is mostly adopted, that is, both ends of two components to be connected are provided with flanges, the gasket is sandwiched between the two flanges, and the two flanges are fastened by a circle of screws. The gasket undergoes a certain degree of deformation under the action of the fastening force and forms a sealing interface with the flange. During assembly, the number of screws is generally multiple and needs to be installed one by one. In addition, in order to ensure the sealing quality after the flange is fastened, there are also requirements for the fastening method of the bolts. The fastening force or torque should be increased sequentially from small to large, such as in an increasing order of 50%, 80%, 100%. In addition, the symmetric fastening principle needs to be satisfied, making the entire connection step relatively complex and taking a long time, which affects the installation efficiency.

[0038] Please also refer to Figure 1 、 Figure 2 and Figure 3, the sealing joint of the embodiment of the present application includes a first joint 1, a second joint 2, a snap flange 3 and a positioning post 4. The interiors of the first joint 1 and the second joint 2 are both provided with through channels for media or components to pass through. Among them, at least a part of the second joint 2 can be sleeved on the first joint 1; the snap flange 3 is connected to the first joint 1, and the snap flange 3 is provided with a first assembly groove 313 that penetrates the wall thickness of the snap flange 3, and the snap flange 3 can be sleeved on at least a part of the second joint 2; the positioning post 4 is connected to the second joint 2, and the positioning post 4 can be arranged in the first assembly groove 313 to hermetically connect the first joint 1 and the second joint 2.

[0039] The first joint 1 and the second joint 2 are inserted into each other to form a relative positional relationship in which the first joint 1, the second joint 2 and the snap flange 3 are arranged from the inside out. Then, through the insertion and cooperation of the positioning post 4 and the first assembly groove 313, the relative positions of the first joint 1, the second joint 2 and the snap flange 3 are fixed, and the first joint 1 and the second joint 2 are sealed. The connection method is simple, and compared with the time required for installing screws one by one, the time required is shortened and the steps required are simplified, improving the efficiency of pipeline and cable connection. The second joint 2 is relatively inserted into the snap flange 3, so that most of the port of the second joint 2 for the first joint 1 to insert is blocked by the snap flange 3, reducing the possibility of external impurities directly entering between the first joint 1 and the second joint 2 from this port.

[0040] In some other embodiments, the positioning post 4 can be connected to the second joint 2 by bonding. During assembly, when the relative positions of the first joint 1 and the second joint 2 are determined, the positioning post 4 is passed through the first assembly groove 313 and bonded to the second joint 2 to limit the relative displacement of the first joint 1 and the second joint 2, which is convenient and fast.

[0041] Please also combine Figure 1 , Figure 2 and Figure 3 , in some embodiments, the snap flange 3 includes a first end 311 and a second end 312. The first end 311 and the second end 312 are spaced apart along the first direction X, and the first direction X corresponds to the direction in which the second joint 2 is sleeved on the first joint 1. The snap flange 3 is provided with a second assembly groove 314 that penetrates the end face of the first end 311 and the wall thickness of the snap flange 3. The second assembly groove 314 extends from the first end 311 to the second end 312 and communicates with the first assembly groove 313. The second assembly groove 314 and the first assembly groove 313 are arranged along the outer peripheral direction of the snap flange 3, that is, there is a certain distance between the second assembly groove 314 and the first assembly groove 313.

[0042] During the insertion process of the first connector 1 and the second connector 2, the positioning post 4 moves along the second assembly groove 314. When the positioning post 4 moves to the intersection position of the second assembly groove 314 and the first assembly groove 313, by relatively rotating the snap flange 3 with respect to the first connector 1 and / or the second connector 2, the positioning post 4 is relatively rotated to be aligned with the first assembly groove 313. Then, the first connector 1 and the second connector 2 are pulled in opposite directions to move them away from each other, driving the positioning post 4 to insert into the first assembly groove 313, thus realizing the fixation of the first connector 1 and the second connector 2. The second assembly groove 314 provides a moving and accommodating space for the positioning post 4, enabling the positioning post 4 to be snap-fitted with the first assembly groove 313 along with the insertion action of the first connector 1 and the second connector 2, further facilitating the assembly of the sealed connector. Both the second assembly groove 314 and the first assembly groove 313 penetrate the wall thickness of the snap flange, making them observable from the outside of the snap flange 3, which is conducive to judging the position of the positioning post 4 when connecting the sealed connector.

[0043] In some other embodiments, after the positioning post 4 is inserted into the first assembly groove 313 to fix the first connector 1 and the second connector 2, a tight fit between the positioning post 4 and the first assembly groove 313 can be adopted, that is, the inner wall of the positioning post 4 abuts against the inner wall of the first assembly groove 313, and the positioning post 4 is fixed by the mutual acting force, thereby restricting the relative displacement of the first connector 1 and the second connector 2. Since the second assembly groove 314 provides a space for the positioning post 4 to move to the first assembly groove 313, the second assembly groove 314 and the first assembly groove 313 can be partially recessed in the wall thickness of the snap flange 3, that is, both the second assembly groove 314 and the first assembly groove 313 are provided on the inner wall of the snap flange 3, and the groove depth is less than the wall thickness of the snap flange 3.

[0044] Please refer to Figure 3 , in some embodiments, the extending direction of the second assembly groove 314 is inclined to the first direction X. The second assembly groove 314 is used for sliding cooperation with the positioning post 4 to cause relative rotation between the snap flange 3 and the second connector 2. The inclined second assembly groove 314 provides a guiding effect for the movement of the positioning post 4, guiding the relative rotation between the snap flange 3 and the second connector 2, so that the positioning post 4 automatically moves to the intersection position with the first assembly groove 313. In some other embodiments, this relative rotation can be in the form of the rotation of the second connector 2, that is, the snap flange 3 is fixed to the first connector 1, and the second connector 2 is twisted during the insertion process to drive the positioning post 4 to move along the second assembly groove 314.

[0045] Please refer to Figure 4, in some embodiments, the quick-release flange 3 is rotatably connected to the first joint 1. During the insertion process, the positioning post 4 moves along the second assembly groove 314 and applies a thrust force to the inner wall of the second assembly groove 314, causing the quick-release flange 3 to rotate. In this way, the first joint 1 and the second joint 2 can remain relatively stationary with respect to the components they are connected to, so as to prevent the pipelines or cables they are connected to from being twisted.

[0046] Please refer to Figure 4 , in some embodiments, the first joint 1 is provided with a clamping groove 10. The clamping groove 10 extends along the outer periphery of the first joint 1 to form an annular groove structure. The quick-release flange 3 includes a body portion 31 and a clamping portion 32. The body portion 31 is sleeved on the first joint 1. The body portion 31 includes a first end 311 and a second end 312. The second assembly groove 314 and the first assembly groove 313 are provided in the body portion 31; at least part of the clamping portion 32 is disposed in the clamping groove 10. The clamping portion 32 is located at the second end 312 and is connected to the body portion 31. The cooperation between the clamping portion 32 and the clamping groove 10 enables the clamping portion 32 to rotate around the first joint 1, and at the same time can limit its relative displacement in the axial direction of the first joint 1, stabilizing the rotational connection between the quick-release flange 3 and the first joint 1.

[0047] Please refer to Figure 5 , in some embodiments, the second assembly groove 314 extends along the first direction X and has a parallel relative position relationship with the axis of the quick-release flange 3. The connection between the quick-release flange 3 and the first joint 1 can be a rotational connection. During the insertion process, the positioning post 4 moves along the second assembly groove 314. When the positioning post 4 moves to the intersection position of the second assembly groove 314 and the first assembly groove 313, the quick-release flange 3 is rotated to move the positioning post 4 relatively to a position directly opposite to the first assembly groove 313. The second assembly groove 314 is arranged in a shape extending along the first direction X, which can simplify the relative movement between the positioning post 4 and the quick-release flange 3, making the insertion action of the first joint 1 and the second joint 2 relatively simple, and at the same time facilitating the processing of the second assembly groove 314. In some other embodiments, the quick-release flange 3 can be fixedly connected to the first joint 1. When the positioning post 4 moves to the intersection position of the second assembly groove 314 and the first assembly groove 313, the positioning post 4 is moved to a position directly opposite to the first assembly groove 313 by screwing the first joint 1 or the second joint 2, which is beneficial to meeting the application requirements of different scenarios.

[0048] Please also combine with Figure 1 and Figure 6, in some embodiments, the number of the second assembly grooves 314, the first assembly grooves 313 and the positioning posts 4 are all set to be multiple. The multiple second assembly grooves 314 are arranged at intervals along the outer periphery of the snap flange 3, and each second assembly groove 314 communicates with a first assembly groove 313. The multiple positioning posts 4 are arranged at intervals along the outer periphery of the second joint 2, and each positioning post 4 is arranged in a first assembly groove 313. When the first joint 1 and the second joint 2 are subjected to a pulling force that makes them move away from each other, the multiple positioning posts 4 can share the pulling force received, stabilize the connection between each positioning post 4 and the second joint 2, meet the application requirements of the sealing joint in different scenarios, and at the same time, the multiple positioning posts 4 also enable the acting force between them and the snap flange 3 to be evenly distributed, improving the stability of the insertion of the first joint 1 and the second joint 2.

[0049] Please also combine with Figure 2 and Figure 4 , in some embodiments, the sealing joint further includes a sealing gasket 5. The sealing gasket 5 has an annular structure. The sealing gasket 5 is arranged in the second joint 2 and is connected to the second joint 2. The first joint 1 abuts against the sealing gasket 5 and is hermetically connected to the second joint 2 through the sealing gasket 5. At the same time, the first joint 1 communicates with the second joint 2 through the inner hole of the sealing gasket 5. Two sealing interfaces are formed between the outer circumferential surface of the sealing gasket 5 and the inner wall of the second joint 2 and between the sealing gasket 5 and the first joint 1, which is beneficial to improving the sealing performance between the first joint 1 and the second joint 2.

[0050] The positioning post 4 is inserted and matched with the first assembly groove 313 to hermetically connect the first joint 1 and the second joint 2. That is to say, when the first joint 1 and the second joint 2 are in the relative positions defined by the insertion and matching of the positioning post 4 and the first assembly groove 313, the first joint 1 and the second joint 2 can achieve mutual sealing. This sealing can be an indirect sealing, that is, the first joint 1 is sealed with the second joint 2 through the sealing gasket 5. In some other embodiments, the first joint 1 and the second joint 2 can also adopt a direct sealing method. For example, an interference fit is adopted between the first joint 1 and the second joint 2, and through the interference amount, the outer circumferential surface of the first joint 1 is fully attached to the inner circumferential surface of the second joint 2, so as to achieve the purpose of sealing. In order to meet the requirements of the interference amount, the first joint 1 and the second joint 2 can select materials with good elasticity and corrosion resistance, such as rubber, polytetrafluoroethylene, etc., to improve the sealing effect.

[0051] Please also combine with Figure 2 and Figure 4In some embodiments, the inner wall of the second joint 2 is provided with a boss 21, which is arranged in a circle around the inner wall of the second joint 2 to form an annular structure. The sealing gasket 5 is located on the side of the boss 21 closest to the first joint 1 and is connected to the boss 21. A third sealing interface is formed between the sealing gasket 5 and the boss 21, which increases the path that the medium needs to pass through. Accordingly, it is more difficult for the medium to leak from the location of the sealing gasket 5, thereby improving the sealing performance between the first joint 1 and the second joint 2. In this embodiment, the boss 21 and the second joint 2 are integrally molded by injection molding and is formed between two adjacent channels of different inner diameters in the second joint 2.

[0052] Please combine Figure 2 and Figure 4 In some embodiments, the sealing gasket 5 is made of an elastic material, such as rubber, polytetrafluoroethylene, or polyurethane. The sealing gasket 5 is squeezed by the first connector 1 to produce elastic deformation, so that the sealing gasket 5 fits tightly with the first connector 1, thereby improving the sealing performance.

[0053] The elasticity of the sealing gasket 5 cooperates with the second assembly groove 314. When the positioning column 4 moves to the intersection of the second assembly groove 314 and the first assembly groove 313, the sealing gasket 5 is compressed and produces elastic deformation. When the positioning column 4 moves to the first assembly groove 313, the elastic deformation part of the sealing gasket 5 is restored and the elastic force between the sealing gasket 5 and the first joint 1 is maintained. On the one hand, the sealing gasket 5 is tightly fitted with the first joint 1. On the other hand, it can apply opposite elastic thrusts to the first joint 1 and the second joint 2, limiting the first joint 1 and the second joint 2 from approaching each other, thereby stabilizing the connection between them.

[0054] Accordingly, an energy storage system provided in an embodiment of the present application includes an energy storage cabinet, liquid cooling pipelines, and the sealing joint of the above-described embodiment. Multiple liquid cooling pipelines are provided in the energy storage cabinet, and the liquid cooling pipelines are used to transmit a cooling medium. The sealing joint connects two adjacent liquid cooling pipelines to connect the multiple liquid cooling pipelines in series. This energy storage system has all the technical features and benefits of the above-described sealing joints, and will not be further elaborated here.

[0055] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0056] The above has introduced in detail the sealed joint provided by the embodiments of the present application, and specific examples have been used to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present application; those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A sealed joint, characterized in that, A liquid cooling pipeline for connecting an energy storage cabinet, the sealing joint comprising: A first joint (1); A second joint (2), at least part of the second joint (2) being sleeved on the first joint (1); A quick-release flange (3) connected to the first joint (1), the quick-release flange (3) being provided with a first assembly groove (313), and the quick-release flange (3) being sleeved on at least part of the second joint (2); A positioning post (4) connected to the second joint (2), the positioning post (4) being disposed in the first assembly groove (313) to sealingly connect the first joint (1) and the second joint (2).

2. The sealed joint according to claim 1, characterized in that, The quick-release flange (3) is provided with a second assembly groove (314), the quick-release flange (3) includes a first end (311) and a second end (312), the first end (311) and the second end (312) are spaced apart along a first direction, the first direction corresponding to the direction in which the second joint (2) is sleeved on the first joint (1), the second assembly groove (314) extends from the first end (311) to the second end (312) and communicates with the first assembly groove (313), and the second assembly groove (314) and the first assembly groove (313) are arranged along the outer circumferential direction of the quick-release flange (3).

3. The sealed joint according to claim 2, characterized in that, The extending direction of the second assembly groove (314) is inclined to the first direction, and the second assembly groove (314) is used for sliding cooperation with the positioning post (4) to cause relative rotation between the quick-release flange (3) and the second joint (2).

4. The sealed joint according to claim 3, characterized in that, The quick-release flange (3) is rotatably connected to the first joint (1).

5. The sealed joint according to claim 4, characterized in that, The first joint (1) is provided with a clamping groove (10) extending along the outer circumference of the first joint (1), and the quick-release flange (3) includes: A body portion (31) sleeved on the first joint (1); A clamping portion (32), at least part of which is disposed in the clamping groove (10), and the clamping portion (32) is connected to the body portion (31).

6. The sealed joint according to claim 2, characterized in that, The second assembly groove (314) extends along the first direction.

7. The sealed joint according to any one of claims 2 to 6, characterized in that, The number of the second assembly grooves (314), the first assembly grooves (313) and the positioning posts (4) are all provided with a plurality, each second assembly groove (314) communicates with one first assembly groove (313), and each positioning post (4) is disposed in one first assembly groove (313).

8. The sealed joint according to claim 1, characterized in that, The sealing joint further includes a sealing gasket (5), the sealing gasket (5) is disposed in the second joint (2) and connected to the second joint (2), the first joint (1) abuts against the sealing gasket (5), and is sealingly connected to the second joint (2) through the sealing gasket (5).

9. The sealed joint according to claim 8, wherein, The inner wall of the second joint (2) is provided with a boss (21), the sealing gasket (5) is located on the side of the boss (21) close to the first joint (1) and is connected to the boss (21).

10. The sealed joint according to claim 8, characterized in that, The sealing gasket (5) is made of an elastic material.

11. A energy storage system, characterized in that, Including: An energy storage cabinet; A plurality of liquid cooling pipelines disposed in the energy storage cabinet; The sealed joint according to any one of claims 1 to 10, wherein the sealed joint connects two adjacent liquid cooling pipelines.

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