CN222735446U - Plug assembly, high-voltage connector and vehicle with high-voltage connector - Google Patents

Abstract

The utility model discloses a plug-in assembly, a high-voltage connector and a vehicle thereof, wherein the plug-in assembly comprises a housing assembly, a first shielding inner shell, a first sealing member and a fixing member. The first shielding inner shell is fixed in the housing assembly. The first sealing member is sleeved on the outer periphery of the first shielding inner shell and abuts against the housing assembly. The fixing member is sleeved on the outer axis of the first shielding inner shell, the fixing member abuts against the first sealing member and is located on a side of the first sealing member away from the center of the housing assembly. According to the plug-in assembly of the utility model, the first sealing member is prevented from falling out of the housing assembly during the plug-in and unplugging process, the sealing effect of the first sealing member can be ensured, the structural reliability of the plug-in assembly is enhanced, and the service life of the plug-in assembly is extended.

Description

Plug assembly, high-voltage connector and vehicle with high-voltage connector

Technical Field

The utility model relates to the technical field of high-voltage connectors, in particular to a plug assembly, a high-voltage connector and a vehicle with the high-voltage connector.

Background

In the prior art, the sealing ring of the plug-in assembly is not fixed, and when a cable is plugged, the sealing ring is easy to shake relative to a shell outgoing line or is brought out of the shell of the plug-in assembly, so that the problem of sealing failure of the outgoing line is easy, the waterproof of the plug-in assembly is not facilitated, and the service life of the plug-in assembly is influenced.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a plugging assembly, which prevents the first sealing member from being separated from the housing assembly, and can ensure the sealing effect of the first sealing member, enhance the structural reliability of the plugging assembly, and prolong the service life of the plugging assembly.

Another object of the present utility model is to provide a high voltage connector employing the above plug assembly.

It is a further object of the present utility model to provide a vehicle employing the high voltage connector described above.

The plug-in assembly comprises a shell assembly, a first shielding inner shell, a first sealing piece and a fixing piece, wherein the first shielding inner shell is fixed in the shell assembly, the first sealing piece is sleeved on the periphery of the first shielding inner shell and is abutted against the shell assembly, the fixing piece is sleeved on the periphery of the first shielding inner shell, and the fixing piece is abutted against the first sealing piece and is located on one side, far away from the center of the shell assembly, of the first sealing piece.

According to the plug assembly provided by the embodiment of the utility model, the fixing piece is added, so that the first sealing piece is connected with the fixing piece. Therefore, compared with the traditional plug-in assembly, the first sealing element is prevented from being separated from the shell assembly in the plug-in process, the sealing effect of the first sealing element is guaranteed, the structural reliability of the plug-in assembly is enhanced, and the service life of the plug-in assembly is prolonged.

According to some embodiments of the utility model, at least one first elastic piece is connected to the outer peripheral wall of the first shielding inner shell, the first elastic piece extends along the axial direction of the first shielding inner shell, the free end of the first elastic piece is spaced from the outer peripheral wall of the first shielding inner shell, at least one first matching hole is formed on the inner side wall of the fixing piece, and the side wall of the first matching hole is abutted against the free end of the corresponding first elastic piece.

According to some embodiments of the utility model, a limiting portion is provided in the housing assembly, at least one limiting groove is formed on one of the first sealing element and the limiting portion, at least one first limiting protrusion is provided on the other of the first sealing element and the limiting portion, and the first limiting protrusion is matched in the limiting groove.

According to some embodiments of the utility model, the shell assembly comprises a first shell and a second shell, wherein the first shell is sleeved on the periphery of the second shell and is connected with the periphery wall of the second shell, the first shielding inner shell is positioned between the periphery wall of the second shell and the inner periphery wall of the first shell, at least one second limiting protrusion is arranged on the periphery wall of the second shell, at least one second elastic sheet is connected with the periphery wall of the first shielding inner shell, the second elastic sheet extends along the axial direction of the first shielding inner shell, and the free end of the second elastic sheet is in abutting contact with the second limiting protrusion.

According to some embodiments of the utility model, the inner peripheral wall of the first housing has a stepped portion, the end portion of the first shield inner housing is stopped against the stepped portion, and the second limit projection is located between the second elastic piece and the stepped portion in the axial direction of the first housing.

A high-voltage connector according to a second aspect of the present utility model comprises a plug assembly, a cable, and a connecting assembly, wherein the plug assembly is the plug assembly according to the first aspect of the present utility model, the cable comprises a terminal part and a wire harness part, the terminal part and the wire harness part are connected with each other, the wire harness part comprises an insulating layer, a shielding layer and an electric conductor, the shielding layer is located between the insulating layer and the electric conductor, the electric conductor is connected with the terminal part, the terminal part is located in a second shell of the plug assembly, and the connecting assembly comprises a connecting terminal, the connecting assembly is in plug fit with the plug assembly, and the connecting terminal is electrically connected with the terminal part of the plug assembly.

According to the high-voltage connector provided by the embodiment of the utility model, the structural stability of the high-voltage connector is improved, and the service life of the high-voltage connector is prolonged.

According to some embodiments of the utility model, at least one locking groove is formed on one of the inner peripheral wall of the second housing and the outer peripheral wall of the terminal portion, and at least one buckle is provided on the other of the inner peripheral wall of the second housing and the outer peripheral wall of the terminal portion, the buckle being fitted in the locking groove.

According to some embodiments of the utility model, the plug assembly further comprises a shielding connection ring arranged at one end of a first shielding inner shell of the plug assembly, which is far away from the fixing piece, the shielding connection ring is connected with the first shielding inner shell, a clamping piece is arranged at one side of the shielding connection ring, which is far away from the first shielding inner shell, a second sealing piece is clamped between the clamping piece and the shielding connection ring, and the terminal part of the cable sequentially penetrates through the clamping piece, the second sealing piece and the shielding connection ring to stretch into the second shell.

According to some embodiments of the utility model, the connection assembly comprises a second outer housing, a second inner shielding housing disposed within the second outer housing, the second inner shielding housing being electrically connected to the first inner shielding housing of the plug assembly, a third seal disposed at an end of the second outer housing remote from the plug assembly, the third seal being adapted to be clamped between the second outer housing and a charging housing.

A vehicle according to an embodiment of a third aspect of the present utility model includes a high voltage connector according to an embodiment of the above second aspect of the present utility model.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a plug assembly according to an embodiment of the present utility model;

FIG. 2 is another angular cross-sectional view of a plug assembly according to an embodiment of the present utility model;

FIG. 3 is a further angular cross-sectional view of a plug assembly according to an embodiment of the present utility model;

FIG. 4 is a schematic view of another angle of a plug assembly according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a fastener according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a mount and first shielding inner housing of an embodiment of the present utility model;

FIG. 7 is a schematic diagram of a cable according to an embodiment of the present utility model;

FIG. 8 is a schematic view of a further angle of a plug assembly according to an embodiment of the present utility model;

FIG. 9 is an exploded view of a plug assembly according to an embodiment of the present utility model;

FIG. 10 is an exploded view of a connection assembly of an embodiment of the present utility model;

FIG. 11 is a schematic view of a high voltage connector according to an embodiment of the present utility model;

FIG. 12 is a schematic view of another angle of a high voltage connector according to an embodiment of the present utility model;

fig. 13 is an exploded view of a high voltage connector according to an embodiment of the present utility model.

Reference numerals:

100. A plug assembly;

1. the cable connector comprises a shell assembly, 11, a first shell, 111, a step part, 12, a second shell, 121, a buckle, 122, a second limiting protrusion, 13, a limiting part, 131, a limiting groove, 2, a cable, 21, a terminal part, 211, a clamping groove, 22, a wire harness part, 221, an insulating layer, 222, a shielding layer, 223, a conductor, 3, a first shielding inner shell, 31, a first elastic sheet, 32, a second elastic sheet, 4, a first sealing element, 41, a first limiting protrusion, 5, a fixing element, 51, a first matching hole, 6, a shielding connecting ring, 7, a clamping element, 8 and a second sealing element;

200. A connection assembly;

201. a second outer housing 202, a second shielding inner housing 203, a third seal;

300. A high voltage connector.

Detailed Description

A plug assembly 100 according to an embodiment of the first aspect of the present utility model is described below with reference to fig. 1-13.

As shown in fig. 1-13, a plug assembly 100 according to an embodiment of the first aspect of the present utility model comprises a housing assembly 1, a first shielding inner housing 3, a first seal 4 and a fixture 5.

Specifically, the first shield inner case 3 is fixed in the case assembly 1, and the first seal 4 is fitted around the outer periphery of the first shield inner case 3 and abuts against the case assembly 1. The fixing piece 5 is sleeved on the periphery of the first shielding inner shell 3, and the fixing piece 5 is abutted against the first sealing piece 4 and is positioned on one side, far away from the center of the shell assembly 1, of the first sealing piece 4.

For example, in the example of fig. 1-13, the cross-section of the housing assembly 1 is elliptical in shape. The first shielding inner shell 3 is located in the shell assembly 1, the first shielding inner shell 3 can be connected with other components through the cable 2, for example, one end of the cable 2 extends into the first shielding inner shell 3, the first shielding inner shell 3 is located at the periphery of the cable 2, and the shielding layer 222 of the cable 2 is electrically connected with the first shielding inner shell 3.

The outer circumference of the first shielding inner shell 3 is sleeved with a fixing piece 5 and a first sealing piece 4. The first shielding inner case 3 may be made of metal. The first sealing member 4 is provided between the first inner shielding shell 3 and the housing assembly 1 to fill the gap between the housing assembly 1 and the first inner shielding shell 3, improve the sealing performance of the plug assembly 100, and prevent liquid from entering the interior of the plug assembly 100 from the gap between the housing assembly 1 and the first inner shielding shell 3.

The fixing piece 5 is sleeved on the periphery of the first shielding inner shell 3, and the fixing piece 5 is connected with the first sealing piece 4. The fixing member 5 may be made of plastic. The fixing member 5 fixes the first sealing member 4 by connecting the fixing member 5 to the first sealing member 4 and the first inner shielding shell 3, respectively, so as to limit the first sealing member 4. When pegging graft, can guarantee the fixed position of first sealing member 4, first sealing member 4 can not take place the displacement promptly to avoid first sealing member 4 to be taken out at plug in-process, reduced the risk of intaking, guaranteed the sealed effect of first sealing member 4.

So set up, mounting 5 can make the fixed position of first sealing member 4, can guarantee the sealed effect of first sealing member 4, and strengthened the connection reliability between parts such as the casing subassembly 1 of grafting subassembly 100, first shielding inner shell 3, first sealing member 4 and mounting 5, prolonged the life of grafting subassembly 100.

According to the plug assembly 100 of the embodiment of the present utility model, the first sealing member 4 is connected to the fixing member 5 by adding the fixing member 5. Therefore, compared with the traditional plug assembly, the first sealing element 4 is prevented from being separated from the shell assembly 1 in the plug process, the sealing effect of the first sealing element 4 is guaranteed, the structural reliability of the plug assembly 100 is enhanced, and the service life of the plug assembly 100 is prolonged.

According to some embodiments of the present utility model, at least one first elastic piece 31 is connected to the outer peripheral wall of the first shielding inner shell 3, the first elastic piece 31 extends along the axial direction of the first shielding inner shell 3, and the free end of the first elastic piece 31 is spaced apart from the outer peripheral wall of the first shielding inner shell 3. At least one first matching hole 51 is formed on the inner side wall of the fixing piece 5, and the side wall of the first matching hole 51 is abutted against the free end of the first elastic piece 31.

Referring to fig. 1 to 9, the first elastic piece 31 is located on the outer wall of the first inner shielding shell 3, and the first elastic piece 31 extends obliquely in the axial direction of the first inner shielding shell 3 in a direction away from the first inner shielding shell 3. The first fitting hole 51 is rectangular in shape, and the first elastic piece 31 may pass through the first fitting hole 51. When the first shielding inner shell 3 is matched with the fixing piece 5, the first elastic piece 31 can pass through the first matching hole 51, and the free end of the first elastic piece 31 is abutted with one end of the first matching hole 51.

The first elastic pieces 31 and the first matching holes 51 may be multiple, the multiple first elastic pieces 31 are spaced apart along the circumferential direction of the first shielding inner shell 3, the multiple first matching holes 51 are arranged along the circumferential direction of the fixing piece 5 at intervals, and the multiple first matching holes 51 are in one-to-one correspondence with the multiple first elastic pieces 31. In the description of the present utility model, "plurality" means two or more.

Specifically, the number of the first elastic pieces 31 may be 4, and the number of the first mating holes 51 is 4. When the fixing piece 5 is sleeved on the first shielding inner shell 3, the 4 first elastic pieces 31 are respectively matched with the corresponding first matching holes 51. When the side wall of each first matching hole 51 is abutted against the free end of the corresponding first elastic piece 31, the fixing piece 5 is installed. So set up, make the relative position between mounting 5 and the first shielding inner shell 3 fixed, prevent that mounting 5 from deviate from on the first shielding inner shell 3, improved the connection reliability of first shielding inner shell 3 and mounting 5.

According to some embodiments of the utility model, the interior of the housing assembly 1 is provided with a stop 13, the stop 13 extending in a direction towards the centre of the housing assembly 1. At least one limiting groove 131 is formed in one of the first sealing member 4 and the limiting portion 13, at least one first limiting protrusion 41 is arranged on the other of the first sealing member 4 and the limiting portion 13, and the first limiting protrusion 41 is matched in the limiting groove 131. As shown in fig. 1 to 9, the stopper 13 is formed by protruding the outer wall of the housing assembly 1 in a direction away from the housing assembly 1. When the first shield inner case 3 is mounted in the case assembly 1, the outer wall of the first shield inner case 3 is stopped against the stopper 13.

When the first sealing member 4 is formed with at least one limiting groove 131, the limiting portion 13 is provided with at least one first limiting protrusion 41 (not shown). When the first sealing member 4 is provided with at least one first limiting protrusion 41, at least one limiting groove 131 (as shown in fig. 8 and 9) is formed in the limiting portion 13.

Specifically, the number of the first limiting protrusions 41 may be 5, and the 5 first limiting protrusions 41 are arranged at intervals along the circumferential direction of the first sealing member 4, each first limiting protrusion 41 being formed by protruding one side of the first sealing member 4 in the axial direction away from the first sealing member 4. The number of the limiting grooves 131 may be 5, and the 5 limiting grooves 131 are arranged at intervals along the circumferential direction of the limiting portion 13, and each limiting groove 131 is formed by recessing one side surface of the limiting portion 13 adjacent to the fixing member 5. The 5 first limit protrusions 41 are in one-to-one correspondence with the 5 limit grooves 131. When the first sealing member 4 is mounted on the housing assembly 1, the 5 limit grooves 131 are matched with the corresponding first limit protrusions 41 to fix the first sealing member 4 on the limit portion 13 of the housing assembly 1, so that connection reliability of the first sealing member 4 and the limit portion 13 is enhanced to limit displacement and rotation of the first sealing member 4, and sealing effect of the first sealing member 4 is enhanced.

According to some embodiments of the present utility model, the housing assembly 1 includes a first housing 11 and a second housing 12, the first housing 11 is sleeved on the outer periphery of the second housing 12 and connected to the outer peripheral wall of the second housing 12, and the first shielding inner housing 3 is located between the outer peripheral wall of the second housing 12 and the inner peripheral wall of the first housing 11. Referring to fig. 1-9, the second housing 12 may be connected to the first housing 11 through a connection post, so that the housing assembly 1 is an integrally formed piece, and a sliding hole is formed at a position of the first shielding inner housing 3 opposite to the connection post, so that the first shielding inner housing 3 slides into between the first housing 11 and the second housing during installation, and at this time, the first shielding inner housing 3 is sleeved on the outer periphery of the second housing 12, and the first housing 11 and the second housing 12 may increase protection of the first shielding inner housing 3 to avoid damage to the first shielding inner housing 3.

Wherein, the outer peripheral wall of the second housing 12 is provided with at least one second limiting protrusion 122, the outer peripheral wall of the first shielding inner housing 3 is connected with at least one second elastic sheet 32, the second elastic sheet 32 extends along the axial direction of the first shielding inner housing 3, and the free end of the second elastic sheet 32 is abutted against the second limiting protrusion 122.

As shown in fig. 4, the second stopper projection 122 is formed by a projection of the outer peripheral wall of the second housing 12. The cross-sectional area of the second limiting projection 122 may be rectangular, trapezoidal, cylindrical, etc. One end of the second elastic piece 32 is connected with the outer peripheral wall of the first shielding inner shell 3, and the other end of the second elastic piece 32 extends obliquely in a direction away from the first shielding inner shell 3. When the first shielding inner shell 3 is matched with the second shell 12, the free end of the second elastic piece 32 is stopped against the second limiting protrusion 122, so that the first shielding inner shell 3 cannot move continuously, at the moment, the fact that the first shielding inner shell 3 is installed in place is indicated, the relative displacement between the first shielding inner shell 3 and the second shell 12 is ensured to be fixed, the connection stability between the first shielding inner shell 3 and the second shell 12 is enhanced, and the structural stability of the plug assembly 100 is ensured.

According to some embodiments of the present utility model, the inner peripheral wall of the first housing 11 has a stepped portion 111, the end portion of the first shield inner housing 3 is stopped against the stepped portion 111, and the second limit projection 122 is located between the second elastic piece 32 and the stepped portion 111 in the axial direction of the first housing 11.

For example, in the example of fig. 1, the step portion 111 is formed by protruding an inner wall of the first housing 11 in a direction away from the first housing 11. When the first inner housing 3 is sleeved on the second housing 12, one end of the first inner housing 3 is stopped against the step portion 111 of the first housing 11, so that the movement space of the first inner housing 3 is limited, and the first inner housing 3 cannot be displaced. By the arrangement, the installation position of the first shielding inner shell 3 is further limited, the installation of the first shielding inner shell 3 is facilitated, and the structural reliability of the plug assembly 100 is enhanced.

The high voltage connector 300 according to the embodiment of the second aspect of the present utility model includes the plug assembly 100, the cable 2, and the connection assembly 200. The plug assembly 100 is a plug assembly 100 according to the above-described first aspect of the present utility model. The cable 2 includes a terminal portion 21 and a harness portion 22 connected to each other, the harness portion 22 including an insulating layer 221, a shielding layer 222, and an electrical conductor 223, the shielding layer 222 being located between the insulating layer 221 and the electrical conductor 223, the electrical conductor 223 being connected to the terminal portion 21, the terminal portion 21 being located within the first housing 11 of the plug assembly 100. The connection assembly 200 includes a connection terminal, which is electrically connected to the terminal portion 21 of the plug assembly 100, and the connection assembly 200 is plug-fitted to the plug assembly 100.

For example, in the examples of fig. 7, 11 to 13, the insulating layer 221, the shielding layer 222, and the electric conductor 223 are arranged in the radial direction of the wire 2. The length of the insulating layer 221 in the axial direction of the conductor 223 is smaller than the length of the shielding layer 222. The conductor 223 and the terminal portion 21 are formed into a bus bar by plastic press molding or laser welding. The connection assembly 200 is connected with the plug assembly 100, wherein the connection terminal may be made of metal, and the connection terminal, the conductor 223 and the terminal portion 21 may form a bus contact, so that conduction between the connection assembly 200 and the plug assembly 100 is achieved. Thus, electric power transmission is realized, the high-voltage connector 300 can work normally, and by adopting the plug assembly 100 with better structural reliability, the structural stability of the high-voltage connector 300 can be enhanced, and the service life of the high-voltage connector 300 can be prolonged.

According to the high-voltage connector 300 of the embodiment of the utility model, by adopting the plug assembly 100, the structural stability of the high-voltage connector 300 is improved, and the service life of the high-voltage connector 300 is prolonged.

According to some embodiments of the present utility model, at least one catching groove 211 is formed on one of the inner peripheral wall of the second housing 12 and the outer peripheral wall of the terminal portion 21, and at least one catching groove 121 is provided on the other of the inner peripheral wall of the second housing 12 and the outer peripheral wall of the terminal portion 21, the catching groove 211 being fitted with the catching groove 121.

When at least one catching groove 211 is formed on the inner peripheral wall of the second housing 12, at least one catching groove 121 (not shown) is provided on the other of the outer peripheral walls of the terminal portion 21. When at least one catch 121 is provided on the inner peripheral wall of the second housing 12, at least one catch 211 is formed on the other of the outer peripheral walls of the terminal portion 21 (as shown in fig. 3). When the terminal portion 21 is engaged with the second housing 12, the snap 121 is engaged with the locking groove 211.

Referring to fig. 3, the locking groove 211 is formed by a depression in a part of the outer peripheral wall of the terminal portion 21, and the catch 121 is formed by a projection in a part of the inner peripheral wall of the second housing 12. When the cable 2 is inserted into the second housing 12, along with the insertion of the cable 2, the buckle 121 is embedded into the clamping groove 211 to be matched with the clamping groove 211, and the clamping groove 211 can limit the movement of the cable 2 after the matching, at this time, the cable 2 is installed in place, and the relative displacement between the cable 2 and the second housing 12 can be limited.

Therefore, when the cable 2 is installed, whether the installation of the cable 2 is perfect or not can be determined through the matching of the clamping groove 211 and the clamping buckle 121, the connection stability of the cable 2 and the second shell 12 is ensured, the cable 2 is prevented from being separated in the plugging process, and the high-voltage connector 300 can work normally.

According to some embodiments of the utility model, the plug assembly 100 further comprises a shielding connection ring 6, a clamping member 7 and a second sealing member 8. The shielding connection ring 6 is arranged at one end of the first shielding inner shell 3 far away from the fixing piece 5, and the shielding connection ring 6 is connected with the first shielding inner shell 3. The clamping member 7 is arranged on the side of the shielding connection ring 6 remote from the first shielding inner housing 3. The second seal 8 is clamped between the clamping member 7 and the shielding connection ring 6. Wherein the terminal portion 21 of the cable 2 extends into the second housing 12 through the clamping member 7, the second sealing member 8 and the shielding connection ring 6 in this order.

Referring to fig. 9, the shield connection ring 6 is made of a metal material. The periphery of the shielding connection ring 6 is punched into a spring tongue structure, and the inside of the spring tongue structure is in contact with the shielding layer 222. The outer part of the spring tongue structure is contacted with the first shielding inner shell 3, so that the contact conduction between the cable 2 and the first shielding inner shell 3 is realized. The clamping piece 7 is made of plastic, and can limit the second sealing piece 8 and the shielding connecting ring 6 and provide support for the shielding connecting ring 6, so that the second sealing piece 8 or the shielding connecting ring 6 is prevented from falling off. The second sealing member 8 may be made of silica gel. The inner wall of the second seal 8 is in contact with the insulating layer 221 of the harness portion 22, and the outer wall of the second seal 8 is in contact with the first housing 11, realizing sealing of the end of the plug-in module 100.

According to some embodiments of the present utility model, the connection assembly 200 includes a second outer housing 201, a second shielding inner housing 202, and a third seal 203. The second inner shielding shell 202 is arranged inside the second outer shell 201, the second inner shielding shell 202 being electrically connected to the first inner shielding shell 3 of the plug assembly 100. A third seal 203 is provided at the end of the second housing 201 remote from the plug assembly 100, the third seal 203 being adapted to be clamped between the second housing 201 and the charging housing.

For example, in the example of fig. 10, the second housing 201 may be made of plastic. The second housing 201 may provide an installation space and protection for the connection assembly 200, preventing the connection assembly 200 from being bumped. The second inner shielding shell 202 may be made of a metal material, and contact conduction between the shielding layer 222 of the harness portion 22 and the second inner shielding shell 202 is achieved by contact with the first inner shielding shell 3. The third sealing member 203 may be made of silicone. When the high voltage connector 300 is connected to the charging box for charging, the third sealing member 203 is located between the second housing 201 and the charging box, and the third sealing member 203 achieves sealing of the connection between the high voltage connector 300 and the charging box.

A vehicle (not shown) according to an embodiment of the third aspect of the present utility model includes the high voltage connector 300 according to the above-described embodiment of the second aspect of the present utility model.

According to the vehicle of the embodiment of the present utility model, by adopting the high-voltage connector 300 described above, the transmission efficiency of electric power is increased, and the cost is reduced.

Other components and operations of a vehicle according to embodiments of the utility model are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present utility model, it should be understood that the terms "center," "length," "width," "thickness," "inner," "outer," "axial," "circumferential," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims (10)

1. A plug assembly, comprising:

a housing assembly;

A first shielding inner housing secured within the housing assembly;

the first sealing piece is sleeved on the periphery of the first shielding inner shell and is stopped against the shell assembly;

the fixing piece is sleeved on the periphery of the first shielding inner shell, and the fixing piece is abutted to the first sealing piece and located on one side, far away from the center of the shell assembly, of the first sealing piece.

2. The plug assembly of claim 1, wherein at least one first spring tab is connected to the outer peripheral wall of the first inner housing, the first spring tab extending in the axial direction of the first inner housing, and wherein a free end of the first spring tab is spaced apart from the outer peripheral wall of the first inner housing;

At least one first matching hole is formed on the inner side wall of the fixing piece, and the side wall of the first matching hole is abutted with the free end of the first elastic piece.

3. The plug assembly according to claim 2, wherein the housing assembly is internally provided with a limit portion,

At least one limiting groove is formed in one of the first sealing piece and the limiting part, at least one first limiting protrusion is arranged on the other of the first sealing piece and the limiting part, and the first limiting protrusion is matched in the limiting groove.

4. A plug assembly according to any one of claims 1 to 3 wherein the housing assembly comprises a first housing and a second housing, the first housing being disposed around and connected to the outer peripheral wall of the second housing, the first shielding inner housing being located between the outer peripheral wall of the second housing and the inner peripheral wall of the first housing;

The outer peripheral wall of the second shell is provided with at least one second limiting protrusion, the outer peripheral wall of the first shielding inner shell is connected with at least one second elastic sheet, the second elastic sheet extends along the axial direction of the first shielding inner shell, and the free end of the second elastic sheet is in abutting connection with the second limiting protrusion.

5. The plug assembly of claim 4, wherein an inner peripheral wall of the first housing has a stepped portion, an end of the first inner housing is stopped against the stepped portion, and the second limit projection is located between the second spring piece and the stepped portion in an axial direction of the first housing.

6. A high voltage connector, comprising:

a plug assembly according to any one of claims 1-5;

A cable including a terminal portion and a harness portion connected to each other, the harness portion including an insulating layer, a shielding layer, and a conductor, the shielding layer being located between the insulating layer and the conductor, the conductor being connected to the terminal portion, the terminal portion being located in a second housing of the plug assembly;

The connecting assembly comprises a connecting terminal, the connecting assembly is in plug-in fit with the plug-in assembly, and the connecting terminal is electrically connected with a terminal part of the plug-in assembly.

7. The high-voltage connector according to claim 6, wherein at least one of an inner peripheral wall of the second housing and an outer peripheral wall of the terminal portion is formed with at least one catch, and the other of the inner peripheral wall of the second housing and the outer peripheral wall of the terminal portion is provided with at least one catch, the catch being fitted in the catch.

8. The high voltage connector of claim 6, wherein the plug assembly further comprises:

The shielding connecting ring is arranged at one end, far away from the fixing piece, of the first shielding inner shell of the plug assembly, and is connected with the first shielding inner shell;

the clamping piece is arranged on one side of the shielding connecting ring, which is far away from the first shielding inner shell;

a second seal clamped between the clamp and the shield connection ring;

The terminal part of the cable sequentially penetrates through the clamping piece, the second sealing piece and the shielding connection ring to extend into the second shell.

9. The high voltage connector of claim 8, wherein the connection assembly comprises:

A second housing;

The second shielding inner shell is arranged in the second outer shell and is electrically connected with the first shielding inner shell of the plug assembly;

And a third sealing member provided at an end of the second housing remote from the plug assembly, the third sealing member being adapted to be clamped between the second housing and the charging box.

10. A vehicle comprising a high voltage connector according to any one of claims 8-9.