Sealing assembly for vehicle battery pack and vehicle battery pack

Abstract

The invention discloses a sealing assembly for a vehicle battery pack and the vehicle battery pack. The sealing assembly comprises a sealing seat, the sealing seat is provided with a sealing face, the sealing face is provided with a sealing groove, the sealing groove is provided with a groove inner wall, and the groove inner wall is provided with one or a plurality of first joint parts which are arranged at intervals; the sealing element comprises a sealing element body and a second joint part which is arranged on the sealing element body and corresponds to the first joint part; wherein the sealing element body is filled in the sealing groove, and the second joint part is jointed with the corresponding first joint part so as to limit the movement of the sealing element body relative to the sealing groove. According to the sealing assembly for the vehicle battery pack, the first joint part and the second joint part which are jointed with each other are introduced into the sealing groove and the sealing piece, and movement of the sealing piece in the sealing groove is limited through joint between the two joint parts; and the sealing performance of a to-be-sealed part of the vehicle battery pack after the sealing assembly is mounted on the vehicle battery pack is ensured.

Description

Technical Field

[0001] This invention belongs to the field of vehicle technology, and particularly relates to sealing components for vehicle battery packs and vehicle battery packs. Background Technology

[0002] In vehicles, certain parts requiring sealing (hereinafter referred to as sealed parts), such as orifices on certain components (e.g., those for fluid passage) are widely sealed using sealing assemblies. As a complete assembly, the sealing assembly includes a sealing seat with a sealing groove and a sealing ring inserted into the groove. Under normal sealing conditions, the two sides of the sealing ring are tightly pressed against the bottom wall of the groove and the part to be sealed, enabling the sealing assembly to achieve an ideal sealing effect. However, during the assembly of the sealing ring into the groove, during the installation of the sealing assembly into the sealed part, and especially during the transportation of the sealing assembly, the sealing ring may rotate / move along the groove, twist locally, or even flip inside and outside or detach from the groove due to friction, bumps, vibration, etc., causing it to no longer be properly positioned within the groove. Consequently, after the sealing assembly is installed on the sealed part, the sealing ring may not be tightly pressed against the bottom wall of the groove and / or the sealed part at certain locations, potentially leading to a poor sealing effect. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention proposes a sealing assembly for vehicle battery packs that effectively restricts the movement of seals (such as sealing rings) within the sealing groove, thereby ensuring that the vehicle battery pack including this sealing assembly has excellent sealing performance.

[0004] Therefore, according to one aspect of the technical concept of the present invention, a sealing assembly for a vehicle battery pack is provided, comprising: a sealing seat having a sealing surface, a sealing groove formed on the sealing surface, the sealing groove having an inner wall, and a plurality of first engagement portions arranged at intervals on the inner wall; and a sealing member including a sealing member body and a second engagement portion disposed on the sealing member body and corresponding to the first engagement portion; wherein the sealing member body is filled in the sealing groove, and the second engagement portion engages with the corresponding first engagement portion to restrict the movement of the sealing member body relative to the sealing groove.

[0005] Based on the above-described technical concept, the present invention may further include any one or more of the following optional forms.

[0006] According to some alternative configurations, the first engagement is configured as a receiving cavity extending from the inner wall of the groove, and the second engagement is configured as a protrusion extending from the seal body; wherein the second engagement is embedded in the first engagement.

[0007] According to some alternative configurations, the first joint, configured as a cavity, includes a cavity body and a cavity inlet leading to the sealing groove. The second joint, configured as a protrusion, extends through the cavity inlet and into the cavity body, and the second joint is provided with a hook extending from the second joint by bending, the hook engaging in the cavity body.

[0008] According to some alternative forms, the sealing assembly includes a plurality of first engagement portions and a plurality of second engagement portions, and at least two of the second engagement portions are arranged in generally opposite positions and form an interlocking structure through the hook portion.

[0009] According to some alternative forms, the inner wall of the groove includes a bottom wall and a pair of side walls extending from opposite sides of the bottom wall.

[0010] According to some alternative forms, the sealing surface is provided with one or more receiving grooves arranged at intervals from each other, the receiving grooves defining the first engagement portion configured as a receiving cavity and communicating with the sealing groove.

[0011] According to some alternative forms, the receiving groove has a cavity and a slot that is reduced in size relative to the cavity.

[0012] According to some alternative forms, the seal also includes a plurality of resilient protrusions disposed on the seal body and offset from the second engagement portion, the plurality of resilient protrusions being spaced apart from each other and pressing against the groove sidewall.

[0013] Depending on some options, the seal may be integrally made of plastic, rubber, or resin.

[0014] According to some alternative configurations, the sealing groove is constructed as an elongated groove, and the sealing element body is constructed as a sealing strip corresponding to the sealing groove; or, the sealing groove is constructed as an annular groove, and the sealing element body is constructed as a sealing ring corresponding to the sealing groove.

[0015] According to another aspect of the present invention, a vehicle battery pack is also provided, the vehicle battery pack including a portion to be sealed and a sealing assembly for the vehicle battery pack, the portion to be sealed having a sealing surface, the sealing surface having a sealing orifice with a sealing edge, the sealing assembly having a sealing seat mounted on the portion to be sealed, and the sealing surface of the sealing seat fitting against the sealing surface, the sealing body of a sealing member filling a sealing groove on the sealing surface extending along the sealing edge to seal the sealing orifice.

[0016] The sealing assembly for a vehicle battery pack of the present invention introduces a first joint and a second joint that engage with each other in a sealing groove and a sealing member. The engagement between the two joints restricts the movement of the sealing member in the sealing groove, keeps the sealing member in the sealing groove, and ensures the sealing of the parts of the vehicle battery pack that need to be sealed after the sealing assembly is installed in the vehicle battery pack. Attached Figure Description

[0017] Features, advantages and other aspects of the various embodiments of the present invention will become more apparent from the accompanying drawings and the following detailed description, in which several embodiments of the invention are shown by way of example and not limitation, and in the drawings, the same reference numerals denote the same or similar parts.

[0018] Figure 1 This is a schematic diagram of an exemplary embodiment of a sealing assembly for a vehicle battery pack according to the present invention;

[0019] Figure 2 yes Figure 1 Top view of the sealing assembly shown;

[0020] Figure 3 yes Figure 1 An exploded view of the sealing assembly shown;

[0021] Figure 4 yes Figure 1 A magnified view of the area indicated by R1;

[0022] Figure 5 yes Figure 3 A magnified view of the area indicated by R2;

[0023] Figure 6 yes Figure 3 A magnified view of the area indicated by R3;

[0024] Figure 7 This is a cross-sectional view of an exemplary embodiment of the first joint;

[0025] Figure 8 This is a cross-sectional view of another exemplary embodiment of the first joint;

[0026] Figure 9 yes Figure 1 The diagram shows the process of installing a sealing assembly onto a part that needs to be sealed.

[0027] Reference numerals: 10-Sealing seat; 11-Inflow pipe; 12-Outflow pipe; 100-Sealing surface; 110-Sealing groove; 110A-Inner wall of groove; 111-Bottom wall of groove; 112-Side wall of groove; 120-First joint; 120A-Cavity body; 120B-Cavity inlet; 130-Accommodating groove; 131-Groove opening; 20-Sealing element; 210-Sealing element body; 220-Second joint; 221-Hook; 230-Elastic protrusion; 30-Sealable part; 31-Sealable surface; 32-Sealable edge; 33-Sealable orifice; I-Sealing assembly. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] It should be noted that if the embodiments of the present invention involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0030] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0031] In view of the fact that in the prior art, the sealing components for vehicle battery packs may experience movement / movement of the sealing ring relative to the sealing groove during the assembly, transportation or installation to the parts or locations to be sealed, resulting in a reduction in their sealing performance, the present invention proposes a sealing component for vehicle battery packs to solve this technical problem, and also proposes a vehicle battery pack including the sealing component.

[0032] Figures 1 to 6 An exemplary embodiment of a sealing assembly I for a vehicle battery pack according to the present invention is shown. The sealing assembly I includes a sealing seat 10 and a sealing element 20. The sealing assembly I can be installed on a portion 30 requiring sealing to seal the portion 30, such as... Figure 9As shown. The sealing seat 10 has a sealing surface 100, which is typically flat, but in some embodiments, the sealing surface 100 may also be an arc surface or a curved surface. A sealing groove 110 is formed on the sealing surface 100. The sealing groove 110 has an inner wall 110A, which may include a bottom wall 111 and a pair of side walls 112 extending from opposite sides of the bottom wall 111. One or more first joints 120 are provided on the inner wall 110A (e.g., on the bottom wall 111 and / or the side walls 112). The sealing member 20 includes a sealing member body 210 and a second joint 220, and the sealing member 20 may be integrally made of plastic, rubber or resin (such as any one of EPDM rubber, nitrile rubber, fluororubber, silicone rubber, fluorosilicone rubber, polyamide, polyurethane, engineering plastics, etc.) and has a certain elasticity. The sealing body 210 is filled into the sealing groove 110. The second engagement portion 220 can be provided on the sealing body 210 and extend toward the sealing groove 110 / groove inner wall 110A. The second engagement portion 220 corresponds to the first engagement portion 120, and the number of the second engagement portion 220 can be one or multiple spaced apart on the sealing body 210. The second engagement portion 220 engages with the corresponding first engagement portion 120. Thus, for example, during the batch transportation of the sealing assembly I, when the sealing body 210 has a tendency to move due to friction, bumps, or vibration, the engagement of the second engagement portion 220 with the first engagement portion 120 can suppress this tendency to move, thereby limiting / preventing the movement of the sealing body 210 / sealing 20 relative to the sealing groove 110. This ensures that the sealing body 210 is well assembled and held in the sealing groove 110, thus ensuring the sealing effect of the sealing assembly I after installation on the part to be sealed 30. It should be understood that "restricting the movement of the sealing body 210 relative to the sealing groove 110" includes, but is not limited to, restricting the movement of the sealing body 210 relative to the sealing groove 110 along the sealing surface 100 (such as restricting the translation or movement of the sealing body 210 within the sealing groove 110), restricting partial torsion of the sealing body 210 itself, restricting the overall inward and outward rotation of the sealing body 210, and restricting the sealing body 210 from disengaging from the sealing groove 110. Simultaneously, it should be understood that the second joint 220 and the first joint 120 can also constitute a foolproof structure, combined with... Figures 1 to 6 This means that when the second joint 220 engages with the first joint 120, the various parts of the sealing body 210 / sealing member 20 are also correctly assembled in the sealing groove 110 without misalignment, which plays a foolproof role, so that the assembly personnel do not need to spend too much effort and concentration, while also improving assembly efficiency and ensuring the correct assembly of the sealing component I itself.

[0033] When the sealing component I of the present invention is used for sealing in a vehicle battery pack, the vehicle battery pack may include the portion to be sealed 30 and the sealing component I of the present invention, such as... Figure 9 As shown, the portion 30 to be sealed may have a sealing surface 31, on which a sealing orifice 33 is provided, and the sealing orifice 33 includes a sealing edge 32 surrounding the sealing orifice 33. A sealing seat 10 may be mounted on the portion 30 to be sealed, the sealing surface 100 may conform to the sealing surface 31 of the portion 30 to be sealed, and the sealing body 210, which is filled in the sealing groove 110, may be arranged to extend along or adjacent to the sealing edge 32, and the sealing body 210 is tightly pressed against the sealing surface 31 of the portion 30 to seal the sealing orifice 33 / sealing edge 32. It should be understood that, depending on the circumstances, the sealing orifice 33 may be a notch (an incomplete hole at certain edge locations) or a complete hole; correspondingly, the sealing edge 32 may be an open edge / non-closed edge or a closed edge. In some embodiments not shown, the orifice to be sealed is a notch, making the edge to be sealed an open edge. The sealing groove and sealing body extending along or adjacent to the edge to be sealed can be elongated or strip-shaped (elongated or strip-shaped can include long arcs, U-shapes, V-shapes, etc.). For example, the sealing groove can be constructed as an elongated groove, and the sealing body can be constructed as a strip-shaped sealing bar corresponding to the sealing groove. After the sealing seat is installed at the part to be sealed, the sealing body, filled in the sealing groove, extends along or adjacent to the edge to be sealed to seal the orifice / edge to be sealed. In other embodiments, such as Figure 3 and Figure 9 As shown, the orifice 33 to be sealed is a complete hole, making the edge 32 to be sealed a closed edge. The sealing groove 110 can be constructed as an annular groove, and the sealing body 210 can be constructed as an annular shape corresponding to the sealing groove 110, that is, the sealing body 210 is constructed as a sealing ring. The sealing body 210, which is filled in the sealing groove 110, extends along or adjacent to the edge to be sealed, sealing the orifice 33 / edge 32 to be sealed. In addition, although as Figure 3 and Figure 9 In the example shown, the sealing seat 10 has an inlet pipe 11 and an outlet pipe 12 integrally formed on it for fluid to flow in and out, respectively, and a sealing groove 110 configured as an annular groove surrounds the inlet pipe 11 and the outlet pipe 12. After the sealing seat 10 is installed on the part to be sealed 30, the inlet pipe 11 and the outlet pipe 12 can pass through the orifice to be sealed 33. However, the inlet pipe 11 and the outlet pipe 12 are not restrictive or necessary. In other embodiments, the sealing seat 10 may not have the inlet pipe 11 and the outlet pipe 12.

[0034] It should be understood that the first joint 120 and the second joint 220 can adopt any suitable mating joint structure, such as one being constructed in a concave shape (e.g., a cavity, including a hole or groove) and the other in a convex shape (e.g., a protrusion), forming a concave-convex fit. (Refer to...) Figures 3 to 6In some embodiments, the first engagement portion 120 is configured as a receiving cavity formed in the inner wall 110A of the groove (groove bottom wall 111 and / or groove side wall 112), and the first engagement portion 120 configured as a receiving cavity intersects with and communicates with the sealing groove 110. Specifically, the receiving cavity configured as the first engagement portion 120 can be a cavity of a hole or a groove cavity of a groove. Correspondingly, the second engagement portion 220 is configured as a protrusion extending from the sealing body 210. The second engagement portion 220 configured as a protrusion is embedded in the first engagement portion 120 configured as a receiving cavity and is tightly engaged with the first engagement portion 120 to restrict the movement of the sealing body 210 relative to the sealing groove 110. It should be understood that the angle between the extension direction of the protruding second joint 220 and the sealing body 210 can be 45° to 90°, including angle values ​​of 45°, 60°, 75°, 90°, etc., and the range formed by any two of the above angle values ​​as endpoints, and the arrangement of the first joint 120 in the sealing groove 110 corresponds to the second joint 220.

[0035] Continue to refer to Figures 3 to 6 In some embodiments, a first engagement portion 120 configured as a cavity includes a cavity body 120A and a cavity inlet 120B, the cavity inlet 120B opening onto a sealing groove 110 on the inner wall 110A of the groove. A second engagement portion 220, configured as a protrusion, extends through the cavity inlet 120B and into the cavity body 120A, and the second engagement portion 220 is provided with a hook portion 221 extending from the second engagement portion 220, the hook portion 221 engaging within the cavity body 120A. For example, the cavity inlet 120B is smaller in size than the cavity body 120A, such that the hook portion 221 cannot enter the cavity inlet 120B from the cavity body 120A, thereby confining the hook portion 221 within the cavity body 120A. Thus, when the sealing body 210 is subjected to friction, bumps, or vibration and has a tendency to move, the hook 221 of the second engagement 220 is engaged / restricted in the cavity body 120A, and the second engagement 220 is fixed, thereby restricting the movement or tendency of the sealing body 210 connected to the second engagement 220 relative to the sealing groove 110. At the same time, the second engagement 220 extends through the cavity inlet 120B and tightly engages with the cavity inlet 120B, while the hook 221 can conform to the cavity wall in the cavity body 120A and cover the junction of the cavity body 120A and the cavity inlet 120B, both of which contribute to sealing.

[0036] In some implementations, such as Figure 2 and Figure 3 As shown, there are multiple (two or more) first joints 120 and second joints 220, and at least two second joints 220 are arranged in substantially opposite positions and form an interlocking structure through their respective hooks 221 to restrict / prevent movement of the sealing body 210. Now combined Figures 3 to 6 and with Figure 2 As illustrated in the diagram, the two second joints 220 are arranged in generally opposite positions and extend from the seal body 210 toward each other, when the seal body 210 has a tendency to move upward relative to the sealing groove 110. Figure 2 The hook 221 of the upper second joint 220 will abut against the junction of the cavity body 120A and the cavity inlet 120B of the upper first joint 120 and get stuck in the cavity body 120A, preventing the sealing body 210 from moving upward. However, when the sealing body 210 has a tendency to move downward relative to the sealing groove 110, Figure 2 The hook 221 of the lower second joint 220 abuts against the junction of the cavity body 120A and cavity inlet 120B of the lower first joint 120, preventing the sealing body 210 from moving downward. This forms an interlocking structure, restricting / preventing the movement of the sealing body 210 along the sealing surface 100 in the sealing groove 110, and better retaining the sealing body 210 in the sealing groove 110. It should be understood that the second joint 220, which forms an interlocking structure through the hook 221, is particularly suitable for seals 20 constructed as sealing rings.

[0037] In some embodiments, the receiving cavity of the first joint 120 can be a groove cavity, such as... Figures 1 to 6 As shown, the sealing surface 100 is provided with one or more accommodating grooves 130 arranged at intervals. Each accommodating groove 130 defines a first engaging portion 120 constructed as a cavity to serve as the cavity of the accommodating groove 130 and communicate with the sealing groove 110. That is, the first engaging portion 120 is the cavity of the accommodating groove 130 and communicates with the sealing groove 110 on its sidewall 112. Thus, the first engaging portion 120 exposed on the sealing surface 100 is visible to the naked eye, facilitating the quick and accurate engagement of the second engaging portion 220, constructed as a protrusion, into the first engaging portion 120, which is constructed as a cavity. Furthermore, in some embodiments, such as... Figure 7As shown, the receiving groove 130 has an opening 131, the size (e.g., width) of which is reduced relative to the cavity of the receiving groove 130 (i.e., the first engagement portion 120). Thus, after the second engagement portion 220, configured as a protrusion, engages in the first engagement portion 120, for example, after the second engagement portion 220 is deformed and passes through / through the opening 131 into the cavity of the first engagement portion 120 / receiving groove 130, the reduced-size opening 131 prevents the second engagement portion 220 from dislodging from the cavity of the first engagement portion 120 / receiving groove 130 via the opening 131. It should be understood that the reduced-size opening 131 can be arranged in any suitable section of the receiving groove 130, such as the cavity body 120A and / or the cavity inlet 120B, preferably at the cavity inlet 120B position of the cavity (i.e., the first engagement portion 120). It should be understood that the first joint 120 is constructed such that the cavity of the receiving groove 130 is exposed on the sealing surface 100, which also makes the opening of the first joint 120 more convenient and saves manufacturing costs.

[0038] The case where the accommodating cavity of the first joint 120 is a groove cavity has been specifically described with reference to the accompanying drawings. However, it should be understood that in some embodiments, such as Figure 8 As shown, the first joint 120 can be configured as a cavity that is a hole (preferably a blind hole) extending from the inner wall 110A of the groove (such as the bottom wall 111 and / or the side wall 112 of the groove). The first joint 120 configured as a cavity can also have a cavity body 120A and a cavity inlet 120B, and can have similar technical effects as when the first joint 120 constitutes a groove cavity, which will not be described in detail here.

[0039] In some implementations, such as Figures 1 to 4 and Figure 6 As shown, the seal 20 also includes a plurality of elastic protrusions 230 disposed on the seal body 210 and offset from the second engagement portion 220, the plurality of elastic protrusions 230 being arranged at intervals between each other. The elastic protrusions 230 are elastic and deformable, and the intervals between the elastic protrusions 230 provide space for the compression deformation of the elastic protrusions 230. The elastic protrusions 230 can elastically press against the groove sidewalls 112 of the sealing groove 110, thereby enabling the seal body 210 to be better confined in the sealing groove 110 by means of the friction between the elastic protrusions 230 and the groove sidewalls 112. It should be understood that the elastic protrusions 230 can be arranged on one side of the seal body 210 to elastically press against one side of the groove sidewall 112 of the sealing groove 110, or they can be arranged on opposite sides of the seal body 210 to elastically press against a pair of opposite groove sidewalls 112 of the sealing groove 110.

[0040] It should be understood that the above description of the preferred embodiments is quite detailed, but it should not be considered as a limitation on the scope of protection of this invention. Those skilled in the art, under the guidance of this invention, can make substitutions or modifications without departing from the scope of protection of the claims of this invention, and all such substitutions or modifications fall within the scope of protection of this invention. The scope of protection of this invention should be determined by the appended claims.

Claims

1. A sealing assembly (I) for a vehicle battery pack, characterized in that, include: A sealing seat (10) has a sealing surface (100) and a sealing groove (110) is provided on the sealing surface (100). The sealing groove (110) has an inner wall (110A) and a plurality of first joints (120) arranged at intervals on the inner wall (110A). A sealing element (20), the sealing element (20) includes a sealing element body (210) and a second engagement portion (220) disposed on the sealing element body (210) and corresponding to the first engagement portion (120); The sealing body (210) is filled in the sealing groove (110), and the second engagement (220) engages with the corresponding first engagement (120) to restrict the movement of the sealing body (210) relative to the sealing groove (110).

2. The sealing assembly (I) for a vehicle battery pack according to claim 1, characterized in that, The first joint (120) is configured as a receiving cavity extending from the inner wall (110A) of the groove, and the second joint (220) is configured as a protrusion extending from the sealing body (210); The second joint (220) is embedded in the first joint (120).

3. The sealing assembly (I) for a vehicle battery pack according to claim 2, characterized in that, The first joint (120) configured as a cavity includes a cavity body (120A) and a cavity inlet (120B) leading to the sealing groove (110). The second joint (220) configured as a protrusion extends through the cavity inlet (120B) and into the cavity body (120A). The second joint (220) is provided with a hook (221) that bends out from the second joint (220) and engages in the cavity body (120A).

4. The sealing assembly (I) for a vehicle battery pack according to claim 3, characterized in that, The sealing assembly (I) includes a plurality of first engagement portions (120) and a plurality of second engagement portions (220), and at least two of the second engagement portions (220) are arranged in generally opposite positions and form an interlocking structure through the hook portion (221).

5. The sealing assembly (I) for a vehicle battery pack according to any one of claims 2 to 4, characterized in that, The inner wall of the groove (110A) includes a bottom wall (111) and a pair of side walls (112) extending from opposite sides of the bottom wall (111).

6. The sealing assembly (I) for a vehicle battery pack according to claim 5, characterized in that, The sealing surface (100) is provided with one or more receiving grooves (130) arranged at intervals from each other, the receiving grooves (130) defining the first joint (120) configured as a receiving cavity and communicating with the sealing groove (110).

7. The sealing assembly (I) for a vehicle battery pack according to claim 6, characterized in that, The receiving groove (130) has a cavity and a slot (131) that is reduced in size relative to the cavity.

8. The sealing assembly (I) for a vehicle battery pack according to claim 5, characterized in that, The seal (20) further includes a plurality of elastic protrusions (230) disposed on the seal body (210) and offset from the second joint (220), the plurality of elastic protrusions (230) being spaced apart from each other and pressing against the groove sidewall (112).

9. The sealing assembly (I) for a vehicle battery pack according to claim 1, characterized in that, The seal (20) is integrally made of plastic, rubber or resin.

10. The sealing assembly (I) for a vehicle battery pack according to claim 1, characterized in that, The sealing groove (110) is constructed as an elongated groove, and the sealing element body (210) is constructed as a sealing strip corresponding to the sealing groove (110); or, the sealing groove (110) is constructed as an annular groove, and the sealing element body (210) is constructed as a sealing ring corresponding to the sealing groove (110).

11. A vehicle battery pack, characterized in that, The vehicle battery pack includes a sealing portion (30) and a sealing assembly (I) for the vehicle battery pack according to any one of claims 1 to 10. The sealing portion (30) has a sealing surface (31) and a sealing orifice (33) having a sealing edge (32) is provided on the sealing surface (31). A sealing seat (10) of the sealing assembly (I) is mounted on the sealing portion (30) and the sealing surface (100) of the sealing seat (10) is in contact with the sealing surface (31). A sealing body (210) filled in a sealing groove (110) on the sealing surface (100) extends along the sealing edge (32) to seal the sealing orifice (33).

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