Sealing assembly and high-voltage box

Abstract

The utility model provides a sealing assembly and a high-voltage box, and the sealing assembly comprises a first connecting piece which is used for being arranged in a box body; the second connecting piece comprises a connecting part and a penetrating part which are connected with each other, the connecting part is arranged outside the box body, and the penetrating part penetrates through the box body and is detachably connected with the first connecting piece; the first sealing ring is used for being arranged between the first connecting piece and the box body in a sealing manner; and the second sealing ring is used for being arranged between the connecting part and the box body in a sealing mode, a first channel used for being communicated with the interior of the box body is arranged in the penetrating part, a second channel communicated with the first channel is arranged in the connecting part, and the side, away from the penetrating part, of the connecting part is used for being connected with an external component so that a medium can be conveyed into the box body through the second channel and the first channel. According to the sealing assembly provided by the invention, the air tightness of the box body can be ensured, and the protection performance of the box body can be conveniently detected.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a sealing assembly and a high-voltage box. Background Art

[0002] In the lithium battery industry, high-voltage boxes play a vital role. For example, high-voltage boxes can distribute the electric energy stored in the battery to various components. Protection components can be integrated inside the high-voltage box to protect the battery safety in the event of an abnormal situation. The high-voltage box can use a sturdy shell design to resist the influence of the external environment to protect the internal components, etc. Therefore, the box body of the high-voltage box needs to have good airtightness to ensure the effective operation and safety of the battery. However, in the related art, the protective performance of the box body of the high-voltage box cannot be conveniently detected. Utility Model Content

[0003] The embodiments of the present application provide a sealing assembly that can not only ensure the airtightness of the box, but also conveniently detect the protective performance of the box.

[0004] In a first aspect, an embodiment of the present application provides a sealing assembly, comprising:

[0005] A first connecting member, used to be arranged in the box;

[0006] The second connecting member comprises a connecting portion and a penetration portion which are connected to each other, wherein the connecting portion is arranged outside the box body, and the penetration portion is used to penetrate the box body and is detachably connected to the first connecting member;

[0007] A first sealing ring, used for sealing between the first connecting member and the box body;

[0008] A second sealing ring, used for sealing and disposed between the connecting portion and the box body;

[0009] The penetration portion is provided with a first channel for communicating with the box body, the connecting portion is provided with a second channel for communicating with the first channel, and the connecting portion is used to connect an external component on a side away from the penetration portion to transmit a medium into the box body through the second channel and the first channel.

[0010] In one embodiment, the outer surface of the penetration portion is provided with a first thread, the first connecting member is provided with a threaded hole, the penetration portion is penetrated through the threaded hole, and is threadedly connected to the threaded hole.

[0011] In one embodiment, the first connecting member includes a limiting portion and a convex ring, the limiting portion is provided with the threaded hole, the convex ring is convexly provided on the limiting portion facing the connecting portion, the convex ring is provided around the threaded hole, and the second sealing ring is sleeved on the convex ring.

[0012] In one embodiment, the second sealing ring is sleeved on the penetration portion and is used to be clamped between the connecting portion and the box body.

[0013] In one embodiment, the first connecting member further includes a fastener, and a connecting hole is penetrated through the first connecting member along the radial direction of the threaded hole, the connecting hole is communicated with the threaded hole, and the fastener passes through the connecting hole and abuts against the passing portion.

[0014] In one embodiment, the connecting portion includes a connecting body and an adapter, one end of the connecting body is connected to the penetration portion, and the other end of the connecting body is connected to the adapter, and the adapter is used to connect to an external component.

[0015] In one embodiment, the connection body and the adapter are detachably connected.

[0016] In one embodiment, the adapter comprises a quick connector, and the quick connector is threadedly connected to the connection body.

[0017] In one embodiment, the installation channel is provided in the connection body, the adapter is at least partially installed in the installation channel, and the size of the installation channel gradually decreases along a direction approaching the penetration portion.

[0018] In one embodiment, the connecting body and the penetration portion are fixedly connected or integrally formed.

[0019] In a second aspect, the present application also provides a high-voltage box, including:

[0020] Box;

[0021] A sealing assembly is installed on the box body, and the sealing assembly is a sealing assembly as described in any of the above embodiments.

[0022] The sealing assembly of the embodiment of the present application includes: a first connector, a second connector, a first sealing ring and a second sealing ring, the first connector is used to be arranged in the box, the first sealing ring is used to be sealed between the first connector and the box, the first sealing ring is used to ensure the sealing between the first connector and the box, and can prevent the medium in the box, such as gas or liquid, from leaking into the external environment through the gap between the first connector and the box. The second connector includes a connecting portion and a penetration portion connected to each other, the penetration portion is used to penetrate the box and is detachably connected to the first connector, the connecting portion is located outside the box, and the second sealing ring is used to be sealed between the connecting portion and the box, and is used to ensure the sealing between the connecting portion and the box, and can prevent the medium in the environment, such as dust, moisture or other potential pollutants, from entering the box through the gap between the connecting portion and the box. Therefore, through the joint action of the first sealing ring and the second sealing ring, the airtightness, stability and safety of the box can be ensured, and the components in the box can be protected from damage, thereby improving the protection performance and reliability of the box. Furthermore, a first channel for communicating with the inside of the box is provided in the penetration portion, a second channel communicating with the first channel is provided in the connecting portion, and the side of the connecting portion facing away from the penetration portion is used to connect to an external component so as to transmit a medium into the box through the second channel and the first channel. For example, when the external component connected to the connecting portion is a compressed air pipe, the compressed air pipe can conveniently inject compressed air or other media into the box to perform an air tightness test on the box. Therefore, by cleverly designing the first channel and the second channel that are interconnected and connecting external components, a convenient way is provided for the protection test of the box, thereby improving the maintainability of the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A schematic diagram of the structure of the sealing assembly and the box body provided in the embodiment of the present application;

[0025] Figure 2 A schematic diagram of the first structure of the sealing assembly provided in an embodiment of the present application;

[0026] Figure 3 A second structural schematic diagram of a sealing assembly provided in an embodiment of the present application;

[0027] Figure 4 A schematic diagram of the structure of a first connecting member provided in an embodiment of the present application;

[0028] Figure 5 A partial structural schematic diagram of a second connecting portion provided in an embodiment of the present application;

[0029] Figure 6 A third structural schematic diagram of the sealing assembly provided in an embodiment of the present application;

[0030] Figure 7 for Figure 6 A cross-sectional view of the sealing assembly along AA is shown;

[0031] Figure 8 for Figure 7 A partial enlarged view of part C of the sealing assembly shown;

[0032] Fig. 9 for Figure 1 Cross-sectional view of the sealing assembly and the housing matching structure

[0033] Fig.10 A fourth structural schematic diagram of the sealing assembly provided in the embodiment of the present application

[0034] Fig.11 A schematic diagram of the structure of the connecting body and the penetration part provided in the embodiment of the present application;

[0035] Fig.12 for Fig.11 The cross-sectional view of the connecting body and the penetration portion along BB is shown. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise stated, the directional words such as "upper" and "lower" used generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inside" and "outside" refer to the outline of the device.

[0037] An embodiment of the present application provides a sealing assembly that can conveniently detect the protective performance of a box, which is described below in conjunction with the accompanying drawings.

[0038] See also Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a schematic diagram of the structure of the sealing assembly and the box body provided in the embodiment of the present application. Figure 2This is a schematic diagram of the first structure of the sealing assembly provided in the embodiment of the present application. Figure 3 The second structural diagram of the sealing assembly provided in the embodiment of the present application. The sealing assembly 10 in the embodiment of the present application can be used to seal the box 100, which can be the box 100 of the high-voltage box 10, wherein the box 100 is usually made of a solid material and has a storage space inside for accommodating battery components or other necessary components. The box 100 can protect the internal components, provide structural support, isolate the external environment, and ensure the safe operation of the internal components. It should be noted that Figure 1 One wall of the box body 100 is indicated in FIG.

[0039] The sealing assembly 10 of the embodiment of the present application includes: a first connecting member 200 , a second connecting member 300 , a first sealing ring 400 , and a second sealing ring 500 .

[0040] The first connector 200 is disposed in the box body 100, and the first sealing ring 400 is sealingly disposed between the first connector 200 and the box body 100, and the first sealing ring 400 is used to ensure the sealing between the first connector 200 and the box body 100. The second connector 300 includes a connecting portion 310 and a penetrating portion 320 connected to each other, the penetrating portion 320 is penetrated through the box body 100 and is detachably connected to the first connector 200, the connecting portion 310 is located on the side of the box body 100 away from the box body 100, and the second sealing ring 500 is sealingly disposed between the connecting portion 310 and the box body 100, and is used to ensure the sealing between the connecting portion 310 and the box body 100.

[0041] It can be understood that the first sealing ring 400 is located inside the box 100, which can prevent the medium in the box 100, such as gas or liquid, from leaking into the external environment through the gap between the first connecting member 200 and the box 100. The second sealing ring 500 is located outside the box 100, which can prevent the medium in the environment, such as dust, moisture or other potential pollutants, from entering the inside of the box 100 through the gap between the connecting portion 310 and the box 100. Therefore, through the joint action of the first sealing ring 400 and the second sealing ring 500, the airtightness, stability and safety of the box 100 can be ensured, and the components in the box 100 can be protected from damage, thereby improving the protection performance and reliability of the box 100.

[0042] Further, in this embodiment, a first channel 321 communicating with the box body 100 is provided in the penetration portion 320, a second channel 311 communicating with the first channel 321 is provided in the connection portion 310, and a side of the connection portion 310 away from the penetration portion 320 is used to connect the external component 600, so as to transmit the medium to the box body 100 through the second channel 311 and the first channel 321. Among them, the first channel 321 is located in the penetration portion 320, and the first channel 321 is communicated with the box body 100 of the box body 100, and the second channel 311 is located in the connection portion 310 and is communicated with the first channel 321, so the medium can be transmitted to the first channel 321 through the second channel 311, and then enter the box body 100 of the box body 100. The side of the connection portion 310 away from the penetration portion 320 is used to connect the external component 600, that is, the box body 100 can be connected to the external component 600 through the connection portion 310. For example, when the external component 600 connected to the connecting portion 310 is a compressed air pipe, the compressed air pipe can conveniently inject compressed air or other media into the interior of the box 100 to perform an air tightness test on the box 100. By monitoring the change in pressure, it is possible to detect whether the box 100 has a leak to ensure its sealing performance. In this embodiment, the connecting portion 310 is used to connect the external component 600, so that the box 100 can be conveniently connected to the external component 600, which is convenient for regular air tightness testing and maintenance, and ensures the long-term stable operation of the box 100. Therefore, the closed component 20 in this embodiment provides a convenient way for the air tightness test of the box 100 by cleverly designing the first channel 321 and the second channel 311 that are interconnected, and connecting the external component 600.

[0043] It should be noted that the convenient method of air tightness test of this embodiment can be adapted to various mainstream boxes 100 in the energy storage industry, and can be adapted to boxes 100 without pressure relief valves, thereby improving compatibility. Moreover, the box 100 can be conveniently connected to the external component 600. By changing the external component 600, various protective performance tests can be performed on the box 100, such as pressure resistance test, environmental adaptability test, waterproof and dustproof test, safety feature test, etc., which are not limited in this embodiment. By testing the protective performance of the box 100, the product yield of the box 100 can be improved, the risk of client complaints can be reduced, and the maintainability of the box 100 can be improved.

[0044] Optional, please refer to Figure 4 and Figure 5 , Figure 4 A schematic diagram of the structure of a first connecting member provided in an embodiment of the present application, Figure 5A partial structural schematic diagram of the second connection part provided in an embodiment of the present application. A first thread 322 is provided on the outer surface of the penetration portion 320, and a threaded hole 211 is provided on the first connection member 200. The penetration portion 320 is penetrated through the threaded hole 211 and is threadedly connected to the threaded hole 211. That is, the connection between the penetration portion 320 and the first connection member 200 can be achieved by threads, and the first thread 322 on the outer surface of the penetration portion 320 matches the threaded hole 211 of the first connection member 200, so that after the penetration portion 320 passes through the first connection member 200, the first thread 322 of the penetration portion 320 is threadedly connected to the threaded hole 211 of the first connection member 200. This connection method is not only firm and reliable, but also can be disassembled as needed, which is convenient for maintenance and repair.

[0045] Optional, please refer to Figure 6 , Figure 7 , Figure 8 and Fig. 9 , Figure 6 This is a third structural schematic diagram of the sealing assembly provided in the embodiment of the present application. Figure 7 for Figure 6 The cross-sectional view of the sealing assembly shown along AA, Figure 8 for Figure 7 The enlarged partial view of the sealing component C is shown. Fig. 9 for Figure 1 The cross-sectional view of the sealing assembly and the matching structure of the box body is shown. The first connecting member 200 includes a limiting portion 210 and a convex ring 220. The limiting portion 210 is provided with a threaded hole 211. The convex ring 220 is convexly arranged on the side of the limiting portion 210 facing the connecting portion 310. The convex ring 220 is arranged around the threaded hole 211, and the second sealing ring 500 is sleeved on the convex ring 220. Among them, the threaded hole 211 on the limiting portion 210 is used to cooperate with the first thread 322 on the outer surface of the penetration portion 320 to achieve the threaded connection between the first connecting member 200 and the penetration portion 320. The convex ring 220 is arranged around the threaded hole 211. The design of the convex ring 220 can protect the threaded hole 211, prevent dust, moisture and other media from entering the threaded hole 211 and affecting the reliability of the threaded connection, and the second sealing ring 500 is sleeved on the convex ring 220, which helps to fix the second sealing ring 500. In addition, the second sealing ring 500 can also provide a sealing effect on the threaded connection between the threaded hole 211 and the penetration portion 320 to prevent the medium from leaking through the threaded connection.

[0046] Optionally, the second sealing ring 500 is sleeved on the penetration portion 320 and sandwiched between the connection portion 310 and the box body 100. That is, the second sealing ring 500 is sandwiched between the connection portion 310 and the box body 100 to seal the gap between the connection portion 310 and the box body 100. The second sealing ring 500 is sandwiched between the connection portion 310 and the box body 100, which helps to form a tight seal, prevents the medium from leaking through the gap between the connection portion 310 and the box body 100, and also prevents dust, moisture, etc. in the environment from entering the interior of the box body 100 through the gap between the connection portion 310 and the box body 100.

[0047] Optional, please continue to refer to Figure 4 The first connecting member 200 also includes a fastener (not shown in the figure). Along the radial direction of the threaded hole 211, the first connecting member 200 is penetrated by a connecting hole 230, and the connecting hole 230 is connected to the threaded hole 211. The fastener passes through the connecting hole 230 and abuts against the penetration portion 320. The connecting hole 230 can be, for example, a machine screw hole, and the fastener can be, for example, a machine screw. After the first connecting member 200 and the penetration portion 320 of the second connecting member 300 are locked by threaded connection, the machine screw is further locked into the machine screw hole, and the penetration portion 320 is radially pressed, thereby providing additional fixation, preventing the already locked first connecting member 200 and the penetration portion 320 from loosening due to vibration, and improving the stability and safety of the connection. Among them, the number of the connecting holes 230 can be set as needed, and can be one or more, for example, it can be symmetrical 2, so that the penetration portion 320 can be locked from both ends.

[0048] Optional, please refer to Fig.10 , Fig.10 The fourth structural schematic diagram of the sealing assembly provided in the embodiment of the present application, the connection part 310 includes a connection body 312 and an adapter 313, one end of the connection body 312 is connected to the penetration part 320, and the other end of the connection body 312 is connected to the adapter 313, and the adapter 313 is used to connect to the external component 600. Among them, one end of the connection body 312 is connected to the penetration part 320, and the other end is connected to the adapter 313. The design of the adapter 313 enables it to be connected to the external component 600, wherein the adapter 313 can be a quick connector, a pipe, a cable or other forms of interfaces, depending on the application requirements of the box 100. By using a standard adapter 313, the compatibility of the connection part 310 with different types of external components 600 can be improved, so that the box 100 can adapt to a variety of different connection requirements and can adapt to various mainstream boxes 100 in the energy storage industry.

[0049] Optionally, the connection body 312 and the adapter 313 are detachably connected. When maintenance or replacement is required, the adapter 313 can be replaced or upgraded as needed to adapt to different external components 600 or connection requirements without replacing the entire connection part 310, which helps to reduce maintenance costs and improve efficiency. The design of the connection part 310 provides a flexible, compatible and easy-to-maintain connection solution through the combination of the connection body 312 and the adapter 313, which is suitable for the connection between the box 100 and the external component 600.

[0050] Optional, please refer to Fig.11 and Fig.12 , Fig.11 A schematic diagram of the structure of the connection body and the penetration part provided in the embodiment of the present application, Fig.12 for Fig.11 The connecting body and the penetration portion are shown in cross-sectional view along line BB. The connecting body 312 is provided with a mounting channel 314, and the adapter 313 is at least partially mounted in the mounting channel 314. The size of the mounting channel 314 gradually decreases as it approaches the penetration portion 320.

[0051] A mounting channel 314 is provided in the connection body 312, and the mounting channel 314 is a space reserved for the installation of the adapter 313. The adapter 313 can be inserted into the mounting channel 314 and fixed in the connection body 312. Among them, the adapter 313 may include a quick connector, and the design of the quick connector allows the user to quickly connect and disconnect the trachea, which is very convenient when replacing the trachea or performing repairs. Exemplarily, the diameter of the quick connector can be 10 mm (φ10), for example, and the φ10 quick connector can be compatible with a variety of trachea sizes and types, increasing the flexibility of use. Among them, the quick connector can be threadedly connected to the connection body 312, that is, the quick connector has an external thread, and the inner wall of the mounting channel 314 has an internal thread, and at least a portion of the external thread of the quick connector is engaged with the internal thread of the mounting channel 314, thereby realizing a threaded connection.

[0052] When the external thread of the quick connector is manufactured according to the rules of the American standard thread and has a tapered design, the installation channel 314 also uses the American standard thread to cooperate with the quick connector, and the inner diameter of the installation channel 314 gradually decreases along the direction close to the penetration portion 320 to match the tapered internal thread of the quick connector, ensuring that it can fit tightly with the external thread of the quick connector, and providing a better sealing effect during connection to prevent the medium from leaking from the threaded connection between the quick connector and the installation channel 314. It should be noted that the external thread design of the quick connector and the internal thread design of the installation channel 314 can be adjusted as needed, for example, a straight thread design can also be used, and the size of the quick connector and the size of the installation channel 314 can also be adjusted as needed, as long as the structure of the quick connector and the structure of the installation channel 314 can match each other. This embodiment is not limited to this.

[0053] Optionally, the connecting body 312 and the adapter 313 are fixedly connected or integrally formed. The connecting body 312 and the adapter 313 can also be fixedly connected or integrally formed. The fixed connection or integrally formed design can reduce the looseness or vibration of the connecting part 310 and improve the stability and reliability of the entire connecting part 310.

[0054] Optionally, the connecting body 312 and the penetration portion 320 are fixedly connected or integrally formed. The second connecting member 300 includes a connecting portion 310 and a penetration portion 320 that are interconnected, and the connecting portion 310 includes a connecting body 312. One end of the connecting body 312 and the penetration portion 320 can be fixedly connected or integrally formed. The fixed connection or integrally formed design can reduce the looseness or vibration of the connecting portion 310 and improve the stability and reliability of the entire connecting portion 310. It can be understood that, among others, the fixed connection design can select different connection methods as needed, such as threaded connection, welding or mechanical fastening, to provide design flexibility, and the integrally formed design eliminates many steps in the assembly process.

[0055] The embodiment of the present application also provides a high-voltage box, which includes a box body 100 and a sealing assembly 10, wherein the sealing assembly 10 is installed in the box body 100, and the sealing assembly 10 is the sealing assembly 10 described in any of the above embodiments. The box body 100 is usually made of a solid material and has a storage space therein for accommodating a battery assembly or other necessary components. The sealing component 10 is sealed and connected to the box body 100 by setting a first sealing ring 400 and a second sealing ring 500, thereby ensuring the airtightness of the box body 100, protecting the components in the box body 100 from damage, and improving the protective performance of the high-voltage box; and the sealing component 10 is cleverly designed with a first channel 321 and a second channel 311 that are interconnected, and connected to an external component 600. The external component 600 can be, for example, a compressed air pipe. The compressed air pipe can conveniently inject compressed air or other media into the box body 100 to perform an airtightness test on the box body 100. By monitoring the change in pressure, it can be detected whether the box body 100 has a leak to ensure its sealing performance. Therefore, by setting the sealing component 10, a convenient way is provided for the airtightness test of the box body 100. By testing the protective performance of the box body 100, the product yield of the high-voltage box can be improved, the maintainability of the high-voltage box can be improved, and the risk of client complaints can also be reduced.

[0056] The sealing assembly and the high-pressure box provided in the embodiments of the present application are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A sealing assembly, characterized in that: include: A first connecting member, used to be arranged in the box; The second connecting member comprises a connecting portion and a penetration portion which are connected to each other, wherein the connecting portion is arranged outside the box body, and the penetration portion is used to penetrate the box body and is detachably connected to the first connecting member; A first sealing ring, used for sealing between the first connecting member and the box body; A second sealing ring, used for sealing and disposed between the connecting portion and the box body; The penetration portion is provided with a first channel for communicating with the box body, the connecting portion is provided with a second channel for communicating with the first channel, and the connecting portion is used to connect an external component on a side away from the penetration portion to transmit a medium into the box body through the second channel and the first channel.

2. The sealing assembly according to claim 1, characterized in that: The outer surface of the penetration portion is provided with a first thread, the first connecting member is provided with a threaded hole, the penetration portion is penetrated through the threaded hole, and is threadedly connected with the threaded hole.

3. The sealing assembly according to claim 2, characterized in that: The first connecting member includes a limiting portion and a convex ring, the limiting portion is provided with the threaded hole, the convex ring is convexly arranged on the limiting portion facing the connecting portion, the convex ring is arranged around the threaded hole, and the second sealing ring is sleeved on the convex ring.

4. The sealing assembly according to claim 2, characterized in that: The second sealing ring is sleeved on the penetration portion and is used to be clamped between the connecting portion and the box body.

5. The sealing assembly according to claim 2, characterized in that: The first connecting member also includes a fastener. A connecting hole is penetrated through the first connecting member along the radial direction of the threaded hole. The connecting hole is communicated with the threaded hole. The fastener passes through the connecting hole and abuts against the passing portion.

6. The sealing assembly according to claim 1, characterized in that The connecting part comprises a connecting body and an adapter, one end of the connecting body is connected to the penetration part, and the other end of the connecting body is connected to the adapter, and the adapter is used to connect to an external component.

7. The sealing assembly according to claim 6, characterized in that: The connecting body and the adapter are detachably connected.

8. The sealing assembly according to claim 7, characterized in that: The adapter comprises a quick connector, and the quick connector is threadedly connected to the connection body.

9. The sealing assembly according to claim 8, characterized in that: An installation channel is provided in the connection body, and the quick connector is at least partially installed in the installation channel. The size of the installation channel gradually decreases along the direction approaching the penetration portion.

10. The sealing assembly according to claim 6, characterized in that The connecting body and the penetration portion are fixedly connected or integrally formed.

11. A high-voltage box, characterized in that: include: Box; A sealing assembly is installed on the box body, and the sealing assembly is the sealing assembly as described in any one of claims 1-10.

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