CN219267961U

CN219267961U - Connector with a plurality of connectors

Info

Publication number: CN219267961U
Application number: CN202320150959.8U
Authority: CN
Inventors: 杨昱辰; 周啸; 杨磊; 姜开轩
Original assignee: Tyco Electronics Shanghai Co Ltd; Tyco Electronics Technology SIP Ltd
Current assignee: Tyco Electronics Shanghai Co Ltd; Tyco Electronics Technology SIP Ltd
Priority date: 2023-01-17
Filing date: 2023-01-17
Publication date: 2023-06-27
Anticipated expiration: 2033-01-17

Abstract

The utility model discloses a connector. The connector includes: an upper housing having a rear port and a bottom window formed at a rear end and a bottom thereof, respectively; and a cable assembly having a front end mounted into the upper housing via the rear port, the front end of the cable assembly having a height dimension in a radial direction of the rear port greater than a diameter of the rear port, the front end being L-shaped including a first portion and a second portion extending in radial and axial directions of the rear port, respectively, the rear port having a peripheral wall extending continuously in a circumferential direction thereof, a bottom window for receiving the first portion to allow the front end to be mounted into the upper housing via the rear port. Therefore, in the present utility model, the height dimension of the terminal of the front end portion of the cable assembly is not limited by the diameter of the rear port of the upper housing, and can be made larger than the diameter of the rear port of the upper housing. Therefore, compared with the prior art, the utility model does not need to provide an extra connecting terminal, reduces the number of parts of the connector and reduces the manufacturing cost.

Description

Connector with a plurality of connectors

Technical Field

The present utility model relates to connectors, and more particularly to a high voltage connector.

Background

In the prior art, connectors typically include a housing and a cable assembly. The cable assembly includes a cable and a terminal soldered to a conductor core of the cable. A rear port is formed at the rear end of the housing, and the terminals of the cable assembly are inserted into the housing via the rear port of the housing. Therefore, in order to ensure that the terminals can be smoothly inserted into the housing, the height dimension of the terminals of the cable assembly in the radial direction of the rear port of the housing must be smaller than the diameter of the rear port of the housing. However, in practical applications, it is sometimes required that the height dimension of the terminals of the connector is larger than the diameter of the rear port of the housing, and at this time, only one additional connection terminal is provided, which is soldered to the ends of the terminals of the cable assembly after the terminals of the cable assembly are inserted into the housing, so as to increase the height dimension of the terminals of the entire connector. However, this increases the number of parts of the connector and increases the cost.

Disclosure of Invention

The present utility model is directed to solving at least one of the above-mentioned problems and disadvantages of the prior art.

According to one aspect of the present utility model, a connector is provided. The connector includes: an upper housing having a rear port and a bottom window formed at a rear end and a bottom thereof, respectively; and a cable assembly having a front end portion mounted into the upper housing via the rear port, a height dimension of the front end portion of the cable assembly in a radial direction of the rear port being larger than a diameter of the rear port, the front end portion being L-shaped including a first portion and a second portion extending in radial and axial directions of the rear port, respectively, the rear port having a peripheral wall extending continuously in a circumferential direction thereof, the bottom window for avoiding the first portion to allow the front end portion to be mounted into the upper housing via the rear port.

According to an exemplary embodiment of the present utility model, the connector further includes: a lower case having a ring of raised annular ribs formed on a top side thereof; and a first sealing ring fitted over the annular rib of the lower housing, the lower housing being mounted to the bottom window of the upper housing, the first sealing ring being pressed between a peripheral portion of the bottom window of the upper housing and the annular rib of the lower housing to seal the bottom window of the upper housing.

According to another exemplary embodiment of the present utility model, a protrusion is formed on one of the upper case and the lower case, and a card slot is formed on the other; the protrusions snap into the clamping grooves to lock the upper and lower housings together.

According to another exemplary embodiment of the present utility model, a mating end adapted to be inserted into a mating housing of a mating connector is convexly formed on a bottom side of the lower housing; the connector further includes: the second sealing ring is sleeved on the opposite end of the lower shell and is suitable for being extruded between the opposite end of the lower shell and the opposite shell so as to realize sealing between the lower shell and the opposite shell.

According to another exemplary embodiment of the present utility model, the cable assembly includes: a cable; and one end of the terminal is electrically connected with the conductor core of the cable, the terminal is L-shaped and is positioned at the front end part of the cable assembly, and the other end of the terminal stretches into the inner cavity of the opposite end for being electrically connected with the opposite terminal of the opposite connector inserted into the inner cavity.

According to another exemplary embodiment of the present utility model, an elastic contact member is provided in the other end of the terminal, the elastic contact member being for electrical contact with a counterpart terminal inserted into the other end of the terminal.

According to another exemplary embodiment of the present utility model, the cable assembly further includes: the insulating shell is sleeved outside the terminal, the insulating shell is L-shaped and is positioned at the front end part of the cable assembly, one end of the insulating shell is fixed on the inner insulating layer of the cable, and the other end of the insulating shell extends into the inner cavity of the opposite end.

According to another exemplary embodiment of the present utility model, the connector further includes: an upper shield case installed in the upper case; and a lower shield shell mounted in the lower housing, the upper shield shell and the lower shield shell being assembled into a shield shell in which a front end portion of the cable assembly is accommodated.

According to another exemplary embodiment of the present utility model, the cable assembly further includes: a first shield connection for electrically connecting a shield layer of the cable to the shield shell.

According to another exemplary embodiment of the present utility model, the connector further includes: and the second shielding connector is used for electrically connecting the shielding shell to the opposite shielding shell of the opposite connector, is cylindrical and has one end electrically connected with the lower shielding shell.

According to another exemplary embodiment of the present utility model, the connector further includes: an inner housing installed in the upper shield case, a positioning groove formed therein, in which a second portion of the front end portion of the cable assembly is received and positioned.

According to another exemplary embodiment of the present utility model, the upper housing, the upper shield shell and the inner housing are assembled into one upper housing assembly; the lower housing, the lower shield housing, the first seal ring, and the second seal ring are assembled into a lower housing assembly; the lower housing assembly is assembled to the upper housing assembly after the front end of the cable assembly is installed into the upper housing assembly.

According to another exemplary embodiment of the present utility model, the cable assembly further includes: and a third sealing ring sleeved on the cable and inserted into the rear port of the upper housing, the third sealing ring being radially pressed between the inner wall of the rear port and the cable to seal the rear port of the upper housing.

According to another exemplary embodiment of the present utility model, the cable assembly further includes: and an end cover which is sleeved on the cable and fixed on the rear end of the upper shell so as to fix the cable to the upper shell.

According to another exemplary embodiment of the present utility model, a positioning step is formed in the rear port of the upper housing, and both axial ends of the third seal ring are respectively abutted between the positioning step of the upper housing and the end wall of the end cap to position the third seal ring in the rear port of the upper housing.

In the foregoing respective exemplary embodiments according to the present utility model, since the bottom window for avoiding the front end portion of the cable assembly is formed on the upper housing of the connector, even if the height dimension of the front end portion of the cable assembly is greater than the diameter of the rear port of the upper housing, it can be smoothly installed into the upper housing. Therefore, in the present utility model, the height dimension of the terminal of the front end portion of the cable assembly is not limited by the diameter of the rear port of the upper housing, and can be made larger than the diameter of the rear port of the upper housing. Therefore, compared with the prior art, the utility model does not need to provide an extra connecting terminal, reduces the number of parts of the connector and reduces the manufacturing cost.

Other objects and advantages of the present utility model will become apparent from the following description of the utility model with reference to the accompanying drawings, which provide a thorough understanding of the present utility model.

Drawings

Fig. 1 shows a schematic perspective view of a connector according to an exemplary embodiment of the utility model;

FIG. 2 shows an axial cross-section of a connector according to an exemplary embodiment of the utility model;

FIG. 3 shows an exploded schematic view of a connector according to an exemplary embodiment of the utility model;

FIG. 4 shows a cross-sectional view of a connector according to an exemplary embodiment of the utility model;

fig. 5 shows a perspective view of an upper housing assembly of a connector according to an exemplary embodiment of the present utility model;

FIG. 6 shows an exploded schematic view of an upper housing assembly of a connector according to an exemplary embodiment of the utility model;

fig. 7 shows a perspective view of a lower housing assembly of a connector according to an exemplary embodiment of the utility model;

FIG. 8 shows an exploded schematic view of a lower housing assembly of a connector according to an exemplary embodiment of the utility model;

FIG. 9 shows an exploded view of the upper housing and cable assembly of the connector, according to an exemplary embodiment of the utility model;

fig. 10 shows a schematic view of a first portion of a front end of a cable assembly of a connector inserted into a rear port of an upper housing according to an exemplary embodiment of the utility model;

FIG. 11 shows a schematic view of a first portion of a front end of a cable assembly of a connector through a bottom window of an upper housing according to an example embodiment of the utility model;

FIG. 12 shows a schematic view of a second portion of the front end of the cable assembly of the connector entering the rear port of the upper housing, according to an example embodiment of the utility model;

fig. 13 shows a schematic view of the front end of the cable assembly of the connector mounted into the upper housing according to an exemplary embodiment of the present utility model.

Detailed Description

The technical scheme of the utility model is further specifically described below through examples and with reference to the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of embodiments of the present utility model with reference to the accompanying drawings is intended to illustrate the general inventive concept and should not be taken as limiting the utility model.

Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in the drawings in order to simplify the drawings.

According to one general technical concept of the present utility model, a connector is provided. The connector includes: an upper housing having a rear port and a bottom window formed at a rear end and a bottom thereof, respectively; and a cable assembly having a front end portion mounted into the upper housing via the rear port, a height dimension of the front end portion of the cable assembly in a radial direction of the rear port being larger than a diameter of the rear port, the front end portion being L-shaped including a first portion and a second portion extending in radial and axial directions of the rear port, respectively, the rear port having a peripheral wall extending continuously in a circumferential direction thereof, the bottom window for avoiding the first portion to allow the front end portion to be mounted into the upper housing via the rear port.

Fig. 1 shows a schematic perspective view of a connector according to an exemplary embodiment of the utility model; FIG. 2 shows an axial cross-section of a connector according to an exemplary embodiment of the utility model; FIG. 3 shows an exploded schematic view of a connector according to an exemplary embodiment of the utility model; fig. 4 shows a cross-sectional view of a connector according to an exemplary embodiment of the utility model.

As shown in fig. 1-4, in one exemplary embodiment of the present utility model, a connector, such as a high voltage connector, is disclosed. The connector includes: an upper housing 11 and a cable assembly 3. A rear port 101 and a bottom window 102 are formed at the rear end and bottom of the upper housing 11, respectively. The front end 30 of the cable assembly 3 is mounted into the upper housing 11 via the rear port 101 of the upper housing 11.

Fig. 9 shows an exploded schematic view of the upper housing 11 and the cable assembly 3 of the connector according to an exemplary embodiment of the utility model; fig. 10 shows a schematic view of the insertion of the first portion 30a of the front end 30 of the cable assembly 3 of the connector into the rear port 101 of the upper housing 11 according to an exemplary embodiment of the utility model; fig. 11 shows a schematic view of the first portion 30a of the front end 30 of the cable assembly 3 of the connector according to an exemplary embodiment of the present utility model passing through the bottom window 102 of the upper housing 11; fig. 12 shows a schematic view of the second portion 30b of the front end 30 of the cable assembly 3 of the connector into the rear port 101 of the upper housing 11 according to an exemplary embodiment of the utility model; fig. 13 shows a schematic view of the front end 30 of the cable assembly 3 of the connector according to an exemplary embodiment of the present utility model mounted into the upper housing 11.

As shown in fig. 1-4 and 9-13, in the illustrated embodiment, the front end 30 of the cable assembly 3 has a height dimension H in the radial direction of the rear port 101 of the upper housing 11 that is greater than the diameter D of the rear port 101. The front end 30 of the cable assembly 3 is L-shaped and includes a first portion 30a and a second portion 30b extending in the radial and axial directions of the rear port 101 of the upper housing 11, respectively. The rear port 101 of the upper case 11 has a peripheral wall extending continuously in the circumferential direction thereof, and the inner peripheral surface of the peripheral wall of the rear port 101 is a sealing surface that mates with the third seal ring 35. The bottom window 102 of the upper housing 11 is used to clear the first portion 30a of the front end 30 of the cable assembly 3 to allow the front end 30 of the cable assembly 3 to be installed into the upper housing 11 via the rear port 101 of the upper housing 11.

A process of installing the front end portion 30 of the cable assembly 3 into the upper housing 11 via the rear port 101 of the upper housing 11 will be described below with reference to fig. 10 to 13.

First, as shown in fig. 10, the tip of the first portion 30a of the front end portion 30 of the cable assembly 3 is substantially aligned with the rear port 101 of the upper housing 11, and the first portion 30a of the front end portion 30 of the cable assembly 3 is inserted into the rear port 101 of the upper housing 11;

then, as shown in fig. 11, the cable assembly 3 is rotated such that the first portion 30a of the front end portion 30 of the cable assembly 3 passes through the bottom window 102 of the upper housing 11, at which time a portion of the second portion 30b of the front end portion 30 of the cable assembly 3 enters the rear port 101 of the upper housing 11;

then, as shown in fig. 12, the rotation of the cable assembly 3 is continued such that the second portion 30b of the front end portion 30 of the cable assembly 3 is parallel to the axial direction of the rear port 101 of the upper housing 11, and the front end portion 30 of the cable assembly 3 is inserted forward in the axial direction of the rear port 101 of the upper housing 11;

finally, as shown in fig. 13, the front end portion 30 of the cable assembly 3 is inserted into a predetermined mounting position in the upper housing 11.

Fig. 5 shows a schematic perspective view of the upper housing assembly 1 of a connector according to an exemplary embodiment of the utility model; fig. 6 shows an exploded schematic view of the upper housing assembly 1 of a connector according to an exemplary embodiment of the utility model; fig. 7 shows a perspective view of the lower housing assembly 2 of the connector according to an exemplary embodiment of the utility model;

fig. 8 shows an exploded schematic view of the lower housing assembly 2 of the connector according to an exemplary embodiment of the utility model.

As shown in fig. 1 to 13, in the illustrated embodiment, the aforementioned connector further comprises a lower housing 21 and a first sealing ring 24. A ring of raised annular ribs 21a are formed on the top side of the lower housing 21. The first seal ring 24 is fitted over the annular rib 21a of the lower case 21. The lower case 21 is mounted to the bottom window 102 of the upper case 11, and the first seal ring 24 is pressed between the peripheral portion 102a of the bottom window 102 of the upper case 11 and the annular rib 21a of the lower case 21 to seal the bottom window 102 of the upper case 11.

As shown in fig. 1 to 13, in one exemplary embodiment of the present utility model, a protrusion 21b is formed on one of the upper case 11 and the lower case 21, and a card slot 11b is formed on the other. The projection 21b is snapped into the catch 11b to lock the upper and

lower housings

11, 21 together. In the illustrated embodiment, a projection 21b is formed on the lower case 21, and a card slot 11b is formed on the upper case 11.

As shown in fig. 1 to 13, in the illustrated embodiment, a mating end 216 adapted to be inserted into a mating housing (not shown) of a mating connector (not shown) is convexly formed on the bottom side of the lower housing 21. The connector further comprises a second sealing ring 25, the second sealing ring 25 being sleeved on the counter end 216 of the lower housing 21. The second seal 25 is adapted to be compressed between the counter-end 216 of the lower housing 21 and the counter-housing of the counter-connector to achieve a seal therebetween.

As shown in fig. 1 to 13, in the illustrated embodiment, the cable assembly 3 includes a cable 31 and a terminal 32. One end of the terminal 32 is electrically connected to the conductor core 311 of the cable 31. The terminals 32 are L-shaped and are located at the front end 30 of the cable assembly 3. The other end of the terminal 32 extends into the interior cavity 201 of the mating end 216 of the lower housing 21 for electrical connection with a mating terminal (not shown) of a mating connector inserted into the interior cavity 201.

As shown in fig. 1-13, in the illustrated embodiment, the terminals 32 are female terminals. An elastic contact 32a is provided in the other end of the terminal 32. The elastic contact 32a is for making electrical contact with a counterpart terminal inserted into the other end of the terminal 32.

As shown in fig. 1 to 13, in the illustrated embodiment, the cable assembly 3 further includes an insulating housing 33, the insulating housing 33 being sleeved outside the terminal 32. The insulating case 33 may be made in a separate type for easy installation. In the illustrated embodiment, the insulating housing 33 is L-shaped and is located at the front end 30 of the cable assembly 3. One end of the insulating housing 33 is secured to the inner insulating layer 312 of the cable 31 and the other end extends into the interior cavity 201 of the mating end 216 of the lower housing 21.

As shown in fig. 1-13, in the illustrated embodiment, the connector further includes an upper shield shell 12 and a lower shield shell 22. The upper shield shell 12 is mounted in the upper housing 11. The lower shield shell 22 is mounted in the lower housing 21. The upper shield shell 12 and the lower shield shell 22 are assembled into the

shield shells

12, 22 of the connector. The front end 30 of the cable assembly 3 is accommodated in the

shield shells

12, 22.

As shown in fig. 1-13, in the illustrated embodiment, the cable assembly 3 further includes a first shield connection 34. The first shield connection 34 is used to electrically connect the shield layer 313 of the cable 31 to the

shield shells

12, 22.

As shown in fig. 1 to 13, in the illustrated embodiment, the connector further comprises a second shield connection 23. The second shield connection 23 is used to electrically connect the

shield shells

12, 22 to a mating shield shell (not shown) of a mating connector.

As shown in fig. 1 to 13, in the illustrated embodiment, the connector further comprises an inner housing 13. The inner housing 13 is mounted in the upper shield shell 12. A positioning groove 103 is formed in the inner housing 13. The second portion 30b of the front end 30 of the cable assembly 3 is received and positioned in the positioning groove 103.

As shown in fig. 1 to 13, in the illustrated embodiment, the upper housing 11, the upper shield shell 12, and the inner housing 13 may be preassembled into one upper housing assembly 1. The lower case 21, the lower shield case 22, the first seal ring 24, and the second seal ring 25 may be assembled in advance into one lower case assembly 2. In the illustrated embodiment, the lower housing assembly 2 is assembled to the upper housing assembly 1 after the front end 30 of the cable assembly 3 is installed into the upper housing assembly 1.

As shown in fig. 1-13, in the illustrated embodiment, the cable assembly further includes a third seal ring 35, the third seal ring 35 being fitted over the cable 31 and inserted into the rear port 101 of the upper housing 11. The third seal ring 35 is radially pressed between the inner wall of the rear port 101 and the cable 31 to seal the rear port 101 of the upper housing 11.

As shown in fig. 1-13, in the illustrated embodiment, the cable assembly further includes an end cap 36. An end cap 36 is fitted over the cable 31 and fixed to the rear end of the upper housing 11 to fix the cable 31 to the upper housing 11. The cable 31 is interference fit with the cable via on the end cap 36, and the end cap 36 is latched to the rear end of the upper housing 11.

As shown in fig. 1 to 13, in the illustrated embodiment, a positioning step 11c is formed in the rear port 101 of the upper case 11, and both axial ends of the third seal ring 35 are respectively abutted between the positioning step 11c of the upper case 11 and the end wall of the end cap 36 to position the third seal ring 35 in the rear port 101 of the upper case 11.

It will be appreciated by those skilled in the art that the above-described embodiments are exemplary and that modifications may be made to the embodiments described in various embodiments without structural or conceptual aspects and that these variations may be resorted to without departing from the scope of the utility model.

Although the present utility model has been described with reference to the accompanying drawings, the examples disclosed in the drawings are intended to illustrate preferred embodiments of the utility model and are not to be construed as limiting the utility model.

Although a few embodiments of the present general inventive concept have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the claims and their equivalents.

It should be noted that the word "comprising" does not exclude other elements or steps, and that the word "a" or "an" does not exclude a plurality. In addition, any element numbers of the claims should not be construed as limiting the scope of the utility model.

Claims

1. A connector, comprising:

an upper case (11) having a rear port (101) and a bottom window (102) formed at the rear end and bottom thereof, respectively; and

a cable assembly (3) having a front end (30) mounted into the upper housing (11) via the rear port (101),

the front end (30) of the cable assembly (3) has a height dimension (H) in the radial direction of the rear port (101) that is greater than the diameter (D) of the rear port (101),

the front end (30) is L-shaped and comprises a first portion (30 a) and a second portion (30 b) extending along the radial direction and the axial direction of the rear port (101), respectively,

the rear port (101) has a peripheral wall extending continuously in a circumferential direction thereof, and the bottom window (102) is for avoiding the first portion (30 a) to allow the front end portion (30) to be mounted into the upper housing (11) via the rear port (101).

2. The connector of claim 1, further comprising:

a lower case (21) having a ring of raised annular ribs (21 a) formed on a top side thereof; and

a first sealing ring (24) sleeved on the annular rib (21 a) of the lower shell (21),

the lower case (21) is mounted to the bottom window (102) of the upper case (11), and the first seal ring (24) is pressed between a peripheral portion (102 a) of the bottom window (102) of the upper case (11) and an annular rib (21 a) of the lower case (21) to seal the bottom window (102) of the upper case (11).

3. The connector according to claim 2, wherein:

a projection (21 b) is formed on one of the upper case (11) and the lower case (21), and a clip groove (11 b) is formed on the other;

the projection (21 b) snaps into the catch (11 b) to lock the upper housing (11) and the lower housing (21) together.

4. The connector according to claim 2, wherein:

a mating end (216) adapted to be inserted into a mating housing of a mating connector is convexly formed on a bottom side of the lower housing (21);

the connector further includes:

a second sealing ring (25) sleeved on the opposite end (216) of the lower shell (21),

the second sealing ring (25) is adapted to be pressed between the counter-end (216) of the lower housing (21) and the counter-housing to achieve a seal therebetween.

5. The connector of claim 4, wherein:

the cable assembly (3) comprises:

a cable (31); and

a terminal (32) having one end electrically connected to a conductor core (311) of the cable (31),

the terminal (32) is L-shaped and is positioned at the front end part (30) of the cable assembly (3), and the other end of the terminal (32) stretches into the inner cavity (201) of the opposite end (216) and is used for being electrically connected with the opposite terminal of the opposite connector inserted into the inner cavity (201).

6. The connector of claim 5, wherein:

a resilient contact (32 a) is provided in the other end of the terminal (32), the resilient contact (32 a) being for electrical contact with a counterpart terminal inserted into the other end of the terminal (32).

7. The connector of claim 5, wherein:

the cable assembly (3) further comprises:

an insulating case (33) which is fitted over the terminal (32),

the insulating shell (33) is L-shaped and is positioned at the front end (30) of the cable assembly (3), one end of the insulating shell (33) is fixed on the inner insulating layer (312) of the cable (31), and the other end of the insulating shell extends into the inner cavity (201) of the opposite end (216).

8. The connector of claim 5, further comprising:

an upper shield shell (12) mounted in the upper housing (11); and

a lower shield shell (22) installed in the lower housing (21),

the upper shield shell (12) and the lower shield shell (22) are assembled into a shield shell in which a front end portion (30) of the cable assembly (3) is accommodated.

9. The connector of claim 8, wherein:

the cable assembly (3) further comprises:

a first shield connection (34) for electrically connecting a shield layer (313) of the cable (31) to the shield shell.

10. The connector of claim 8, further comprising:

a second shield connection (23) for electrically connecting the shield shell to a mating shield shell of a mating connector,

the second shield connector (23) is cylindrical, and one end thereof is electrically connected with the lower shield shell (22).

11. The connector of claim 8, further comprising:

an inner housing (13) mounted in the upper shield case (12),

a positioning groove (103) is formed in the inner housing (13), and a second portion (30 b) of the front end portion (30) of the cable assembly (3) is accommodated and positioned in the positioning groove (103).

12. The connector of claim 11, wherein:

-said upper housing (11), said upper shielding shell (12) and said inner housing (13) are assembled into one upper housing assembly (1);

-the lower housing (21), the lower shielding shell (22), the first sealing ring (24) and the second sealing ring (25) are assembled into one lower housing assembly (2);

after the front end (30) of the cable assembly (3) is mounted into the upper housing assembly (1), the lower housing assembly (2) is assembled onto the upper housing assembly (1).

13. The connector of claim 5, wherein:

the cable assembly further includes:

a third sealing ring (35) sleeved on the cable (31) and inserted into the rear port (101) of the upper housing (11),

the third sealing ring (35) is radially pressed between the inner wall of the rear port (101) and the cable (31) to seal the rear port (101) of the upper housing (11).

14. The connector of claim 13, wherein:

the cable assembly further includes:

an end cap (36) which is fitted over the cable (31) and fixed to the rear end of the upper housing (11) to fix the cable (31) to the upper housing (11).

15. The connector of claim 14, wherein:

a positioning step (11 c) is formed in the rear port (101) of the upper housing (11), and both axial ends of the third seal ring (35) are respectively abutted between the positioning step (11 c) of the upper housing (11) and the end wall of the end cover (36) to position the third seal ring (35) in the rear port (101) of the upper housing (11).