CN216436204U

CN216436204U - Connector, mating connector and connector assembly

Info

Publication number: CN216436204U
Application number: CN202122669607.7U
Authority: CN
Inventors: 董爱兵; 马克西姆·波宁; 姚李强; 王勇; 马修·维马尔
Original assignee: Kelly Opps Inc; Tyco Electronics Shanghai Co Ltd
Current assignee: Kelly Opps Inc; Tyco Electronics Shanghai Co Ltd
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-05-03
Anticipated expiration: 2031-11-03
Also published as: EP4178045A1

Abstract

The utility model discloses a connector, to joining in marriage connector and connector assembly. A connector, comprising: a first shielding shell comprising: a first outer wall; and two first partition walls dividing an inner space surrounded by the first outer walls into three first insertion chambers electromagnetically isolated from each other; the three first insulators are respectively inserted into the three first insertion cavities of the first shielding shell; and the three first terminals are respectively inserted in the three first insulators and are used for being respectively and electrically connected with the three-phase winding of the permanent magnet motor. The utility model discloses in, three terminal holds respectively in the three chamber of inserting of keeping apart each other electromagnetism to mutual interference or even short circuit between the three terminal can be avoided, electric arc can be prevented moreover from flowing through this connector, permanent-magnet machine and relevant electrical equipment's safety has been guaranteed.

Description

Connector, mating connector and connector assembly

Technical Field

The utility model relates to a connector, with this connector to joining in marriage the connector and including this connector and to the connector assembly who joins in marriage the connector.

Background

In the prior art, two connectors capable of being rapidly mated are generally used between the permanent magnet motor and the ac power source to realize the electrical connection between the permanent magnet motor and the ac power source. In the prior art, each connector includes a shield shell, a single insulator, and three terminals. A single accommodating cavity is formed in the shielding shell, the insulator is inserted into the single accommodating cavity of the shielding shell, and the three terminals are respectively inserted into the three insertion holes of the insulator. In the prior art, three terminals are located in the same accommodating cavity of the shielding shell, and the terminals are not isolated by electromagnetic shielding, so that the three terminals connected with the three-phase winding U, V, W of the permanent magnet motor are not protected by independent electromagnetic shielding, mutual interference and even short circuit are easy to occur, and the permanent magnet motor is damaged due to loss of magnetism; in addition, when the permanent magnet motor fails to generate an arc, the arc is likely to flow through the connector, which may cause damage to equipment such as a converter connected to the connector.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to solve at least one of the above problems and drawbacks existing in the prior art.

According to an aspect of the present invention, there is provided a connector, including: a first shielding shell comprising: a first outer wall; and two first partition walls dividing an inner space surrounded by the first outer walls into three first insertion chambers electromagnetically isolated from each other; the three first insulators are respectively inserted into the three first insertion cavities of the first shielding shell; and the three first terminals are respectively inserted in the three first insulators and are used for being respectively and electrically connected with the three-phase winding of the permanent magnet motor.

According to an exemplary embodiment of the present invention, the first outer wall of the first shielding shell comprises: a first top wall; a first bottom wall; and a pair of first side walls respectively connected to left and right sides of the first top wall and the first bottom wall, and two first partition walls connected between the first top wall and the first bottom wall.

According to another exemplary embodiment of the present invention, the first shielding shell further comprises a first rear end wall located at a rear side thereof, the connector further comprises three first cables passing through the first rear end wall and respectively extending into the three first insertion cavities to be electrically connected with the three first terminals respectively.

According to another exemplary embodiment of the present invention, the connector further comprises three first cable fixing heads, which sealingly fix the three first cables to the first rear end wall of the first shield shell, respectively.

According to another exemplary embodiment of the present invention, the first insulator includes: a first outer cylinder; and the first inner cylinder body is arranged in the first outer cylinder body and is connected to the first outer cylinder body, the first outer cylinder body is fixed on the inner side surface of the first insertion cavity, and the first terminal is inserted into the central through hole of the first inner cylinder body.

According to another exemplary embodiment of the present invention, a first connection post is formed at each of four corners of the first insertion cavity, and a first screw hole is formed at the first connection post; four first flange parts corresponding to the four first connecting columns are formed on the outer side surface of the first outer cylinder body, and first connecting holes are formed in the first flange parts; the first outer cylinder is fixed to an inner side surface of the first insertion chamber by a first screw passing through the first connection hole and screwed into the first screw hole.

According to another exemplary embodiment of the present invention, the first outer cylinder is formed with a positioning groove on an inner side thereof, the positioning groove being adapted to mate with a positioning column on a mating connector to ensure that the connector and the mating connector are properly mated.

According to another exemplary embodiment of the present invention, a first connecting ear protruding outward is formed on an outer surface of the front side of the first side wall, the first connecting ear being adapted to be connected with a second connecting ear on a mating connector by a threaded connection for holding the connector and the mating connector in a mating state.

According to another exemplary embodiment of the present invention, an outwardly protruding connection substrate is formed on an outer surface of the bottom of the first side wall, the connection substrate being adapted to be connected to a panel for fixing the connector to the panel.

According to another exemplary embodiment of the present invention, the connector further comprises a sealing ring, which is fitted over the front end of the first shielding shell; the front end of the first shielding shell is suitable for being inserted into a second shielding shell of a mating connector; the seal ring is adapted to be radially compressed between the first and second shield shells to seal a mating interface therebetween.

According to another aspect of the present invention, there is provided a mating connector adapted to be mated with the aforementioned connector, the mating connector including: a second shielding shell comprising: a second outer wall; and two second partition walls dividing an inner space surrounded by the second outer walls into three second insertion chambers electromagnetically isolated from each other; three second insulators respectively inserted into three second insertion cavities of the second shielding shell; and the three second terminals are respectively inserted in the three second insulators and are used for being respectively matched with the three first terminals of the connector.

According to an exemplary embodiment of the present invention, the second outer wall comprises: a second top wall; a second bottom wall; and a pair of second side walls respectively connected to left and right sides of the second top wall and the second bottom wall, and the two second partition walls are connected between the second top wall and the second bottom wall.

According to another exemplary embodiment of the present invention, the second shielding shell further includes a second rear end wall located at a rear side thereof, the mating connector further includes three second cables, the three second cables pass through the second rear end wall and respectively extend into the three second insertion cavities to be electrically connected with the three second terminals respectively.

According to another exemplary embodiment of the present invention, the mating connector further comprises three second cable fixing heads, which respectively fix the three second cables to the second rear end wall of the second shield shell in a sealing manner.

According to another exemplary embodiment of the present invention, the second insulator comprises: a second outer barrel; and a second inner cylinder disposed in and connected to the second outer cylinder, the second outer cylinder being fixed to an inner side surface of the second insertion cavity, and the second terminal being inserted into a central through hole of the second inner cylinder.

According to another exemplary embodiment of the present invention, a second connection post is formed at each of four corners of the second insertion cavity, and a second screw hole is formed at the second connection post; four second flange parts respectively corresponding to the four second connecting columns are formed on the outer side surface of the second outer cylinder body, and second connecting holes are formed in the second flange parts; the second outer cylinder is fixed to the inner side surface of the second insertion cavity by a second screw passing through the second connection hole and screwed into the second screw hole.

According to another exemplary embodiment of the present invention, an outward protruding positioning column is formed on the outer surface of the second outer cylinder, the positioning column is suitable for matching with a positioning groove on the connector, so as to ensure that the connector and the matching machine are correctly matched.

According to another exemplary embodiment of the present invention, a second coupling ear protruding outward is formed on an outer surface of the front side of the second side wall, the second coupling ear being adapted to be coupled to a first coupling ear on a connector by a screw connection for holding the connector and the mating connector in a mated state.

According to another aspect of the present invention, there is provided a connector assembly including the aforementioned connector and a mating connector mated with the aforementioned connector.

In the aforementioned various exemplary embodiments according to the present invention, three insertion cavities electromagnetically isolated from each other are formed in the shield case, and three terminals are respectively accommodated in the three insertion cavities, so that mutual interference or even short circuit between the three terminals can be avoided, and electric arc can be prevented from flowing through the connector, thereby ensuring safety of the permanent magnet motor and the related electric equipment.

Other objects and advantages of the present invention will become apparent from the following description of the invention, which is made with reference to the accompanying drawings, and can help to provide a thorough understanding of the present invention.

Drawings

Fig. 1 shows an assembly schematic of a connector according to an exemplary embodiment of the present invention;

fig. 2 shows an exploded schematic view of a first shield shell and a first insulator of a connector according to an exemplary embodiment of the invention;

fig. 3 shows an assembly schematic of a mating connector according to an exemplary embodiment of the invention;

fig. 4 shows an exploded schematic view of a second shield shell and a second insulator of a mating connector according to an exemplary embodiment of the present invention;

fig. 5 shows a cross-sectional view of a connector assembly according to an exemplary embodiment of the present invention;

fig. 6 shows a schematic diagram of a three-phase winding of a permanent magnet machine according to an exemplary embodiment of the invention.

Detailed Description

The technical solution of the present invention is further specifically described below by way of 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 the embodiments of the present invention with reference to the drawings is intended to explain the general inventive concept and should not be construed as limiting the invention.

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 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 schematic form in order to simplify the drawing.

According to a general technical concept of the present invention, there is provided a connector, including: a first shielding shell comprising: a first outer wall; and two first partition walls partitioning an inner space surrounded by the first outer walls into three first insertion chambers isolated from each other; the three first insulators are respectively inserted into the three first insertion cavities of the first shielding shell; and the three first terminals are respectively inserted in the three first insulators and are used for being respectively and electrically connected with the three-phase winding of the permanent magnet motor.

Fig. 1 shows an assembly schematic of a connector 10 according to an exemplary embodiment of the present invention; fig. 2 shows an exploded schematic view of the first shield shell 100 and the first insulator 200 of the connector 10 according to an exemplary embodiment of the present invention; fig. 6 shows a schematic diagram of a three-phase winding U, V, W of a permanent magnet machine M according to an exemplary embodiment of the invention.

As shown in fig. 1-2 and 6, in the illustrated embodiment, the connector 10 includes: a first shield case 100, three first insulators 200, and three first terminals 300. The first shield case 100 includes: a first outer wall and two first dividing walls 140. The two first partition walls 140 partition the inner space surrounded by the first outer walls into three first insertion chambers 101 electromagnetically isolated from each other. Three first insulators 200 are inserted into the three first insertion cavities 101 of the first shield shell 100, respectively. The three first terminals 300 are respectively inserted into the three first insulators 200, and are electrically connected to the three-phase windings U, V, W of the permanent magnet motor M. For example, the three first terminals 300 may be electrically connected to the three-phase windings U, V, W of the permanent magnet motor M through three cables (not shown), respectively.

As shown in fig. 1 and 2, in the illustrated embodiment, the first outer wall of the first shield shell 100 includes: a first top wall 110, a first bottom wall 120, and a pair of first side walls 130. A pair of first side walls 130 are respectively connected to left and right sides of the first top wall 110 and the first bottom wall 120. Two first partition walls 140 are connected between the first top wall 110 and the first bottom wall 120.

As shown in fig. 1 and 2, in the illustrated embodiment, the first shield shell 100 further includes a first rear end wall 150 located at the rear side thereof, and the connector 10 further includes three first cables (not shown) that pass through the first rear end wall 150 and respectively protrude into the three first insertion cavities 101 to be electrically connected to the three first terminals 300, respectively.

As shown in fig. 1 and 2, in the illustrated embodiment, the connector 10 further includes three first cable retaining tabs 400, the three first cable retaining tabs 400 each sealingly securing three first cables to the first rear end wall 150 of the first shielding shell 100.

As shown in fig. 1 and 2, in the illustrated embodiment, the first insulator 200 includes: a first outer cylinder 210 and a first inner cylinder 220. The first inner cylinder 220 is disposed in the first outer cylinder 210 and connected to the first outer cylinder 210, the first outer cylinder 210 is fixed to the inner side of the first insertion cavity 101, and the first terminal 300 is inserted into the central through hole of the first inner cylinder 220. In an exemplary embodiment of the present invention, each first insulator 200 is an integrally formed member.

As shown in fig. 1 and 2, in the illustrated embodiment, one first coupling post 180 is formed at each of four corners of the first insertion cavity 101, and a first screw hole 181 is formed at the first coupling post 180; four first flange parts 230 corresponding to the four first connection posts 180 are formed on the outer side surface of the first outer cylinder 210, and first connection holes 231 are formed in the first flange parts 230. The first outer cylinder 210 is fixed to the inner side of the first insertion chamber 101 by a first screw 232 passing through the first connection hole 231 and screwed into the first screw hole 181.

As shown in fig. 1 and 2, in the illustrated embodiment, a positioning groove 240 is formed on the inner side of the first outer cylinder 210, and the positioning groove 240 is adapted to mate with a positioning post 240 ' on the mating connector 10 ' (see fig. 4-5) to ensure that the connector 10 and the mating machine 10 ' are properly mated.

As shown in fig. 1 and 2, in the illustrated embodiment, a first coupling ear 160 protruding outward is formed on an outer surface of the front side of the first side wall 130, and the first coupling ear 160 is adapted to be coupled to a second coupling ear 160 ' on the counterpart connector 10 ' by a screw coupling 162 (see fig. 4 to 5) for maintaining the connector 10 and the counterpart connector 10 ' in a mated state.

As shown in fig. 1 and 2, in the illustrated embodiment, an outwardly protruding connection substrate 170 is formed on an outer surface of the bottom of the first sidewall 130, a slot 171 is formed on the connection substrate 170, and the connection substrate 170 may be connected to a panel (e.g., a housing of an electrical device) by a connection member (e.g., a bolt) passing through the slot 171 for fixing the connector 10 to the panel.

Fig. 5 shows a cross-sectional view of a connector assembly according to an exemplary embodiment of the present invention.

As shown in fig. 1-2 and 5, in the illustrated embodiment, connector 10 further includes a seal ring 500, which seal ring 500 is fitted over the front end of first shield shell 100. The front end of the first shield shell 100 is adapted to be inserted into the second shield shell 100 'of the counterpart connector 10'. Seal ring 500 is adapted to be radially compressed between first shield shell 100 and second shield shell 100' to seal the mating interface therebetween.

Fig. 3 shows an assembly schematic of a mating connector 10' according to an exemplary embodiment of the invention; fig. 4 shows an exploded schematic view of the second shield shell 100 ' and the second insulator 200 ' of the mating connector 10 ' according to an exemplary embodiment of the present invention.

As shown in fig. 1 to 5, in an exemplary embodiment of the present invention, a mating connector 10 'is also disclosed, the mating connector 10' being adapted to mate with the aforementioned connector 10. As shown in fig. 3 and 4, the mating connector 10' includes: a second shield shell 100 ', three second insulators 200 ' and three second terminals 300 '.

As shown in fig. 1 to 5, in the illustrated embodiment, the second shield shell 100' includes: a second outer wall and two second separation walls 140'. The two second partition walls 140 'partition the inner space surrounded by the second outer walls into three second insertion chambers 101' electromagnetically isolated from each other. Three second insulators 200 ' are respectively inserted into three second insertion cavities 101 ' of the second shield shell 100 '. Three second terminals 300 'are inserted into the three second insulators 200', respectively, for mating with the three first terminals 300 of the connector 10, respectively. In the illustrated embodiment, one of the first and second terminals 300 and 300' is a male terminal, and the other is a female terminal mated with the male terminal.

As shown in fig. 1 to 5, in the illustrated embodiment, the second outer wall includes: a second top wall 110 ', a second bottom wall 120 ', and a pair of second side walls 130 '. A pair of second side walls 130 'are respectively connected to left and right sides of the second top wall 110' and the second bottom wall 120 ', and two second partition walls 140' are connected between the second top wall 110 'and the second bottom wall 120'.

As shown in fig. 1 to 5, in the illustrated embodiment, the second shielding shell 100 'further includes a second rear end wall 150' located at the rear side thereof, and the mating connector 10 'further includes three second cables (not shown) passing through the second rear end wall 150' and respectively protruding into the three second insertion cavities 101 'to be electrically connected with the three second terminals 300', respectively.

As shown in fig. 1 to 5, in the illustrated embodiment, the mating connector 10 ' further includes three second cable fixing heads 400 ', which three second cable fixing heads 400 ' respectively sealingly fix three second cables to the second rear end wall 150 ' of the second shielding shell 100 '.

As shown in fig. 1 to 5, in the illustrated embodiment, the second insulator 200' includes: a second outer cylinder 210 'and a second inner cylinder 220'. The second inner cylinder 220 ' is disposed in the second outer cylinder 210 ' and connected to the second outer cylinder 210 '. The second outer cylinder 210 'is fixed to the inner side of the second insertion cavity 101', and the second terminal 300 'is inserted into the central through hole of the second inner cylinder 220'. In an exemplary embodiment of the present invention, each second insulator 200' is an integrally formed part.

As shown in fig. 1 to 5, in the illustrated embodiment, one second connection post 180 'is formed at each of four corners of the second insertion cavity 101', and a second screw hole 181 'is formed at the second connection post 180'; four second flange parts 230 ' corresponding to the four second connection posts 180 ' are formed on the outer side surface of the second outer cylinder 210 ', and second connection holes 231 ' are formed in the second flange parts 230 '. The second outer cylinder 210 ' is fixed to the inner side surface of the second insertion chamber 101 ' by a second screw 232 ' passing through the second coupling hole 231 ' and screwed into the second screw hole 181 '.

As shown in fig. 1 to 5, in the illustrated embodiment, an outwardly protruding positioning post 240 'is formed on the outer surface of the second outer cylinder 210', and the positioning post 240 'is adapted to be aligned with the positioning groove 240 on the connector 10 to ensure that the connector 10 and the mating machine 10' are properly aligned.

As shown in fig. 1 to 5, in the illustrated embodiment, second coupling ears 160 'protruding outward are formed on an outer surface of the front side of the second side wall 130', and the second coupling ears 160 'are adapted to be coupled with the first coupling ears 160 on the connector 10 by a screw coupling 162 for maintaining the connector 10 and the counterpart connector 10' in a mated state.

As shown in fig. 1 to 5, in an exemplary embodiment of the present invention, there is also disclosed a connector assembly including: the aforementioned connector 10 and the aforementioned mating connector 10'. The connector 10 and the mating connector 10' are mated together.

It is understood by those skilled in the art that the above described embodiments are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without conflict in structure or principle, and that these modifications are intended to fall within the scope of the present invention.

Although the present invention has been described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to exemplify preferred embodiments of the present invention, and should not be construed as limiting the present invention.

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 the words "a" or "an" do not exclude a plurality. Additionally, any element numbers of the claims should not be construed as limiting the scope of the invention.

Claims

1. A connector, comprising:

a first shielding shell (100) comprising:

a first outer wall; and

two first partition walls (140) partitioning an inner space enclosed by the first outer wall into three first insertion chambers (101) electromagnetically isolated from each other;

three first insulators (200) respectively inserted into three first insertion cavities (101) of the first shielding shell (100); and

and the three first terminals (300) are respectively inserted into the three first insulators (200) and are used for being respectively and electrically connected with the three-phase winding (U, V, W) of the permanent magnet motor (M).

2. The connector of claim 1, wherein:

the first outer wall of the first shield shell (100) comprises:

a first top wall (110);

a first bottom wall (120); and

a pair of first side walls (130) respectively connected to left and right sides of the first top wall (110) and the first bottom wall (120),

the two first dividing walls (140) are connected between the first top wall (110) and the first bottom wall (120).

3. The connector according to claim 1, wherein:

the first shield shell (100) further comprises a first rear end wall (150) at the rear side thereof, and the connector (10) further comprises three first cables which penetrate through the first rear end wall (150) and respectively extend into the three first insertion cavities (101) to be electrically connected with the three first terminals (300), respectively.

4. The connector of claim 3, wherein:

the connector (10) further comprises three first cable fixing heads (400), the three first cable fixing heads (400) sealingly fixing the three first cables to the first rear end wall (150) of the first shielding shell (100), respectively.

5. The connector of claim 1, wherein:

the first insulator (200) includes:

a first outer cylinder (210); and

a first inner cylinder (220) disposed in the first outer cylinder (210) and connected to the first outer cylinder (210),

the first outer cylinder (210) is fixed to the inner side of the first insertion cavity (101), and the first terminal (300) is inserted into the central through hole of the first inner cylinder (220).

6. The connector of claim 5, wherein:

one first connection column (180) is formed at each of four corners of the first insertion cavity (101), and a first threaded hole (181) is formed in the first connection column (180);

four first flange parts (230) corresponding to the four first connecting columns (180) are formed on the outer side surface of the first outer cylinder body (210), and first connecting holes (231) are formed in the first flange parts (230);

the first outer cylinder (210) is fixed to an inner side surface of the first insertion chamber (101) by a first screw (232) passing through the first connection hole (231) and screwed into the first screw hole (181).

7. The connector of claim 5, wherein:

a positioning groove (240) is formed on the inner side of the first outer cylinder (210), and the positioning groove (240) is suitable for being matched with a positioning column (240 ') on a matched connector (10 ') so as to ensure that the connector (10) and the matched connector (10 ') are correctly matched.

8. The connector of claim 2, wherein:

a first coupling ear (160) protruding outward is formed on an outer surface of a front side of the first side wall (130), the first coupling ear (160) being adapted to be coupled with a second coupling ear (160 ') on a counterpart connector (10 ') by a screw coupling (162) for holding the connector (10) and the counterpart connector (10 ') in a mated state.

9. The connector of claim 2, wherein:

an outwardly protruding connection substrate (170) is formed on an outer surface of a bottom of the first sidewall (130), the connection substrate (170) being adapted to be connected to a panel for securing the connector (10) to the panel.

10. The connector of claim 1, wherein:

the connector (10) further comprises a sealing ring (500), and the sealing ring (500) is sleeved on the front end of the first shielding shell (100);

the front end of the first shield shell (100) is adapted to be inserted into a second shield shell (100 ') of a mating connector (10');

the sealing ring (500) is adapted to be radially compressed between the first and second shield shells (100, 100') to seal a mating interface therebetween.

11. A mating connector adapted to mate with the connector (10) of any one of claims 1-10, wherein the mating connector (10') comprises:

a second shielding shell (100') comprising:

a second outer wall; and

two second partition walls (140 ') dividing an inner space enclosed by the second outer walls into three second insertion chambers (101') electromagnetically isolated from each other;

three second insulators (200 ') respectively inserted into three second insertion cavities (101 ') of the second shield shell (100 '); and

and three second terminals (300 ') respectively inserted into the three second insulators (200') and respectively matched with the three first terminals (300) of the connector (10).

12. The mating connector of claim 11, wherein:

the second outer wall includes:

a second top wall (110');

a second bottom wall (120'); and

a pair of second side walls (130 ') respectively connected to left and right sides of the second top wall (110 ') and the second bottom wall (120 '),

the two second separation walls (140 ') are connected between the second top wall (110 ') and the second bottom wall (120 ').

13. The mating connector of claim 11, wherein:

the second shield shell (100 ') further includes a second rear end wall (150') at a rear side thereof, and the mating connector (10 ') further includes three second cables penetrating the second rear end wall (150') and respectively protruding into the three second insertion cavities (101 ') to be electrically connected with the three second terminals (300'), respectively.

14. The mating connector of claim 13, wherein:

the counter connector (10 ') further comprises three second cable fixing heads (400 '), the three second cable fixing heads (400 ') sealingly fixing the three second cables to the second rear end wall (150 ') of the second shield shell (100 '), respectively.

15. The mating connector of claim 11, wherein:

the second insulator (200') includes:

a second outer cylinder (210'); and

a second inner cylinder (220 ') disposed in the second outer cylinder (210 ') and connected to the second outer cylinder (210 '),

the second outer cylinder (210 ') is fixed to the inner side of the second insertion cavity (101'), and the second terminal (300 ') is inserted into the central through hole of the second inner cylinder (220').

16. The mating connector of claim 15, wherein:

a second connection post (180 ') is formed at each of four corners of the second insertion cavity (101'), and a second screw hole (181 ') is formed at the second connection post (180');

four second flange parts (230 ') corresponding to the four second connection posts (180 ') are formed on the outer side surface of the second outer cylinder (210 '), and second connection holes (231 ') are formed on the second flange parts (230 ');

the second outer cylinder (210 ') is fixed to the inner side surface of the second insertion cavity (101 ') by a second screw (232 ') passing through the second coupling hole (231 ') and screwed into the second screw hole (181 ').

17. The mating connector of claim 15, wherein:

an outward protruding positioning column (240 ') is formed on the outer surface of the second outer cylinder (210'), and the positioning column (240 ') is suitable for being matched with the positioning groove (240) on the connector (10) so as to ensure that the connector (10) and the matched connector (10') are correctly matched.

18. The mating connector of claim 12, wherein:

an outwardly projecting second coupling ear (160 ') is formed on an outer surface of a front side of the second side wall (130'), the second coupling ear (160 ') being adapted to be coupled with the first coupling ear (160) on the connector (10) by a screw coupling (162) for holding the connector (10) and the counterpart connector (10') in a mated state.

19. A connector assembly, comprising:

the connector (10) of any one of claims 1-10; and

the mating connector (10') of any of claims 11-18 mated with the connector (10).