Connector

Abstract

The utility model relates to a connector. The connector comprises a shell, a contact terminal, a first insulator and a second insulator. The first insulator is positioned and accommodated in the accommodating cavity, and the first insulator is provided with an insulating covering part. At least one contact terminal is inserted into the insulating covering part. The inner circumferential surface of the accommodating cavity surrounds the outer circumferential side of the insulating covering part, and the inner circumferential surface of the accommodating cavity and the outer circumferential side of the insulating covering part are arranged at intervals. The second insulator is provided with an insulating partition plate part connected to the first insulator. The insulating partition plate part is arranged between the insulating covering part and the inner circumferential surface of the accommodating cavity, and the outer circumferential side of the insulating covering part and the insulating partition plate part are arranged at intervals. And the position of the insulating partition plate part at least corresponds to the shortest relative path between the contact terminal and the inner circumferential surface of the accommodating cavity along the circumferential direction of the inner circumferential surface, so that the creepage distance between the shell and the contact terminal can be increased, a discharge phenomenon between the shell and the contact terminal is avoided, and an electric shock accident when an operator is in contact with the shell is prevented.

Description

Technical Field

[0001] The present application relates to the technical field of connection devices, and in particular to a connector. Background Art

[0002] Connectors are devices used to achieve electrical connection between different devices. The application of connectors can improve the efficiency of electrical connection between different devices. Currently, they are widely used in the fields of automobiles, communications, consumer electronics, data processing, industrial machinery, etc.

[0003] Connectors can be used as sockets to be fixed on equipment, panels or circuit boards. Connectors can also be used as plugs to connect to one end of a cable. Two connectors are generally fastened together by locking structures to maintain a certain relative position and achieve a stable electrical connection.

[0004] The connector generally includes a housing, an insulating seat and a terminal. The insulating seat and the terminal are contained in the housing. The insulating seat covers the outer surface of the terminal and provides insulating support for the terminal. In order to improve the mechanical strength, a part of the housing is made of metal. However, when the connector is energized, when the potential of the terminal is high, discharge may occur between the terminal and the housing due to insufficient creepage distance, and may cause electric shock accidents to operators when docking the connector. Utility Model Content

[0005] Based on this, the utility model provides a connector that can solve or at least alleviate the above technical problems.

[0006] The utility model provides a connector, comprising:

[0007] A shell encloses a receiving cavity;

[0008] At least one contact terminal, the contact terminal is accommodated in the receiving cavity;

[0009] A first insulator is positioned and accommodated in the receiving cavity; the first insulator is provided with an insulating covering portion; the insulating covering portion is provided with at least one contact terminal; the inner circumference of the receiving cavity surrounds the outer circumference of the insulating covering portion, and the inner circumference of the receiving cavity is spaced apart from the outer circumference of the insulating covering portion; and

[0010] The second insulator is provided with an insulating partition portion connected to the first insulator; the insulating partition portion is arranged between the insulating covering portion and the inner circumferential surface of the accommodating cavity, and the outer circumferential side of the insulating covering portion is spaced apart from the insulating partition portion; along the circumferential direction of the inner circumferential surface, the position of the insulating partition portion at least corresponds to the shortest relative path between the contact terminal and the inner circumferential surface of the accommodating cavity.

[0011] In the above connector, the first insulator is positioned and accommodated in the receiving cavity, so that the first insulator is in a stable position relative to the shell. The insulating covering portion provides insulating coverage for the outer peripheral surface of the contact terminal while supporting the contact terminal, so that the contact terminal is in a stable position in the shell. The inner peripheral surface of the receiving cavity surrounds the outer peripheral side of the contact terminal and the first insulator, so that the shell can protect the contact terminal and the first insulator. One end of the contact terminal is exposed outside the insulating covering portion. Since the insulating partition portion is connected to the first insulator, and the position of the insulating partition portion at least corresponds to the shortest relative path between the contact terminal and the inner peripheral surface of the receiving cavity, the creepage distance between the shell and the contact terminal is affected by the insulating partition portion. The shortest path of the creepage distance needs to bypass the inner surface of the insulating partition portion, which can help increase the creepage distance between the shell and the contact terminal, avoid discharge between the shell and the contact terminal, and prevent the operator from accidentally getting an electric shock when touching the shell.

[0012] In one embodiment, the housing is provided with a mounting portion and a first peripheral wall portion connected to one side of the mounting portion; the mounting portion and the inner peripheral sides of the first peripheral wall portion enclose a receiving cavity.

[0013] In one embodiment, the insulating partition portion is integrally connected to the first insulator.

[0014] In one embodiment, the second insulator is connected to the first insulator; the second insulator is snap-fitted with the housing.

[0015] In one of the embodiments, the second insulator is provided with an elastic clamping portion connected to the first insulator; the elastic clamping portion is arranged between two circumferentially adjacent insulating partition portions; the inner circumferential surface of the accommodating cavity is provided with a clamping groove; the clamping groove is used to accommodate the elastic clamping portion; the elastic clamping portion can be abutted against the inner wall surface of the clamping groove.

[0016] In one embodiment, the arc length of the insulating partition portion along the circumferential direction is greater than the arc length of the elastic locking portion along the circumferential direction.

[0017] In one embodiment, a positioning groove is provided on the outer peripheral side of the second insulator; an elastic locking portion is provided on the outer shell; and the elastic locking portion is abutted against the inner wall surface of the positioning groove.

[0018] In one embodiment, a third insulator is further included; the third insulator is supported between the first insulator and the shell; and the contact terminal is inserted into the insulating covering portion and the third insulator at the same time.

[0019] In one embodiment, the shell forms a limiting step surface on the inner circumferential surface of the accommodating cavity; the direction of the limiting step surface is the same as the direction from the third insulator to the insulating covering portion; a portion of the third insulator is abutted against the limiting step surface, and the other portion is abutted against the first insulator.

[0020] In one embodiment, the insulating partition portion is cylindrical and is arranged around the inner circumference of the receiving cavity, and the position of the insulating partition portion corresponds to the shortest relative path between all the contact terminals and the inner circumference of the receiving cavity; or, a plurality of the insulating partition portions are distributed along the inner circumference, and the position of each of the insulating partition portions corresponds to the shortest relative path between at least one of the contact terminals and the inner circumference of the receiving cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of a connector according to an embodiment of the present application.

[0022] Figure 2 for Figure 1 The connector is shown in a three-dimensional schematic diagram at another angle.

[0023] Figure 3 The figure is a schematic diagram of an exploded view of the connector shown in the figure in a three-dimensional cross-sectional state.

[0024] Figure 4 for Figure 1 A top view of the connector is shown.

[0025] Figure 5 for Figure 1 A perspective cutaway view of the connector is shown.

[0026] Figure 6 for Figure 1 A perspective cutaway view of the connector is shown.

[0027] Figure 7 This is a schematic diagram of the planar structure of a connector according to another embodiment of the present application.

[0028] Figure numerals: 100, connector; 20, shell; 21, accommodating cavity; 22, inner peripheral surface; 23, mounting portion; 24, first peripheral wall portion; 25, slot; 26, elastic locking portion; 27, limiting step surface; 28, second peripheral wall portion; 30, contact terminal; 40, first insulator; 41, insulating covering portion; 50, second insulator; 51, insulating partition portion; 52, elastic locking portion; 521, introduction slope; 522, locking surface; 53, positioning groove; 60, third insulator; 70, sealing gasket; L1, shortest relative path. DETAILED DESCRIPTION

[0029] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0030] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] The technical solution provided by the embodiments of the present application is described below in conjunction with the accompanying drawings.

[0033] Combination Figure 1 and Figure 2 As shown, the present application provides a connector 100. In some embodiments, the connector 100 is used as a device for realizing electrical connection between different devices. In other embodiments, the connector 100 is used in the same device to realize electrical connection between different electrical modules. In some embodiments, the connector 100 can be fixed on a device, a panel or a circuit board. In other embodiments, the connector 100 is installed at one end of an electrical cable.

[0034] Combination Figure 1 , Figure 3 and Figure 4As shown, the connector 100 includes: a housing 20, a contact terminal 30, a first insulator 40 and a second insulator 50. The housing 20 encloses a receiving cavity 21. At least one contact terminal 30 is accommodated in the receiving cavity 21. The first insulator 40 is positioned and accommodated in the receiving cavity 21, and the first insulator 40 is provided with an insulating cover 41. At least one contact terminal 30 is inserted into the insulating cover 41. The inner circumferential surface 22 of the receiving cavity 21 surrounds the outer circumferential side of the insulating cover 41, and the inner circumferential surface 22 of the receiving cavity 21 is spaced apart from the outer circumferential side of the insulating cover 41. The second insulator 50 is provided with an insulating partition portion 51 connected to the first insulator 40. The insulating partition portion 51 is arranged between the insulating cover 41 and the inner circumferential surface 22 of the receiving cavity 21, and the outer circumferential side of the insulating cover 41 is spaced apart from the insulating partition portion 51. Along the circumferential direction of the inner circumferential surface 22 , the position of the insulating partition portion 51 at least corresponds to the shortest relative path L1 between the contact terminal 30 and the inner circumferential surface 22 of the receiving cavity 21 .

[0035] Specifically, the first insulator 40 is positioned and accommodated in the receiving cavity 21, so that the first insulator 40 is in a stable position relative to the housing 20. The insulating cover 41 provides an insulating cover for the outer circumference of the contact terminal 30 and supports the contact terminal 30, so that the contact terminal 30 is in a stable position in the housing 20. The inner circumference 22 of the receiving cavity 21 surrounds the outer circumference of the contact terminal 30 and the first insulator 40, so that the housing 20 can protect the contact terminal 30 and the first insulator 40. One end of the contact terminal 30 is exposed outside the insulating cover 41. Since the insulating partition part 51 is connected to the first insulator 40, and the position of the insulating partition part 51 at least corresponds to the shortest relative path L1 between the contact terminal 30 and the inner circumference 22 of the receiving cavity 21, the creepage distance between the housing 20 and the contact terminal 30 is affected by the insulating partition part 51. The shortest path of the creepage distance needs to bypass the inner surface of the insulating partition portion 51, which can help increase the creepage distance between the housing 20 and the contact terminal 30, avoid discharge between the housing 20 and the contact terminal 30, and prevent the operator from accidentally getting an electric shock when touching the housing 20.

[0036] Specifically, combined Figure 4 As shown, there is a shortest relative path L1 corresponding to any contact terminal 30 and the inner circumference 22 of the receiving cavity 21 , and a point on the outer circumference of the contact terminal 30 can reach the inner circumference 22 of the receiving cavity 21 with the shortest distance through the shortest relative path L1 .

[0037] In some embodiments, in combination Figure 1 and Figure 5As shown, the housing 20 is provided with a mounting portion 23 and a first circumferential wall portion 24 connected to one side of the mounting portion 23. The inner circumference of the mounting portion 23 and the first circumferential wall portion 24 encloses a receiving cavity 21. Specifically, the first circumferential wall portion 24 surrounds the outer circumference of the insulating covering portion 41, thereby protecting the insulating covering portion 41 and the contact terminal 30. The insulating partition portion 51 is disposed between the insulating covering portion 41 and the first circumferential wall portion 24. In some embodiments, when the connector 100 is installed and fixed on the cabinet of the device, a through hole is reserved in the wall panel of the cabinet. The first circumferential wall portion 24 is inserted into the through hole. The mounting portion 23 is attached to the wall panel. In one embodiment, the mounting portion 23 is fixed to the wall panel by fasteners.

[0038] In some embodiments, in combination Figure 5 and Figure 6 As shown, the mounting portion 23 is plate-shaped, and the first peripheral wall portion 24 is perpendicular to the plane where the mounting portion 23 is located, so that the mounting support of the connector 100 and the surrounding protection of the insulating cover portion 41 can be achieved with less material, which is beneficial to saving costs and reducing the weight of the housing 20.

[0039] Specifically, combined Figure 5 As shown, one end of the contact terminal 30 is used to connect the conductor, and the other end is used to connect to the external terminal. In some embodiments, the contact terminal 30 is made of conductive metal material.

[0040] In some embodiments, the first insulator 40 is positioned and accommodated in the housing 20 by abutting against the inner peripheral surface 22 of the receiving cavity 21 in an interference fit state.

[0041] In some embodiments, in combination Figure 5 As shown, the second insulator 50 is connected to the first insulator 40. The second insulator 50 is snap-fitted with the housing 20. Specifically, the second insulator 50 is in a stable position relative to the housing 20 by snap-fitting with the housing 20. Since the first insulator 40 is connected to the second insulator 50, the first insulator 40 can be positioned and accommodated in the receiving cavity 21. In other embodiments, the first insulator 40 can also be directly snap-fitted with the housing 20, so as to be positioned and accommodated in the receiving cavity 21.

[0042] In some embodiments, the insulating partition portion 51 is integrally connected to the first insulator 40, so that during the assembly process of the connector 100, it is not necessary to assemble and connect the insulating partition portion 51 and the first insulator 40, which is conducive to simplifying the assembly process of the connector 100 and improving the production efficiency of the connector 100. Specifically, the insulating partition portion 51 and the first insulator 40 are integrally connected by injection molding.

[0043] In some other embodiments, the insulating partition portion 51 may also be fixedly inserted into the first insulator 40 .

[0044] In some embodiments, in combination Figure 5 and Figure 6 As shown, the second insulator 50 is provided with an elastic snap-fitting portion 52 connected to the first insulator 40. The elastic snap-fitting portion 52 is arranged between two circumferentially adjacent insulating partition portions 51. The inner circumferential surface 22 of the accommodating cavity 21 is provided with a card slot 25. The card slot 25 is used to accommodate the elastic snap-fitting portion 52. The elastic snap-fitting portion 52 can abut against the inner wall surface of the card slot 25. Specifically, during the process of the second insulator 50 entering the accommodating cavity 21, the elastic snap-fitting portion 52 undergoes elastic contraction. After the second insulator 50 is completely accommodated in the accommodating cavity 21, the elastic snap-fitting portion 52 elastically recovers and is at least partially accommodated in the card slot 25. The elastic snap-fitting portion 52 abuts against the inner wall surface of the card slot 25, thereby limiting the second insulator 50 from withdrawing from the housing 20.

[0045] In some embodiments, the elastic engaging portion 52 and the insulating partition portion 51 are integrally connected to the first insulator 40, so that the second insulator 50 and the first insulator 40 are integrated, which is conducive to simplifying the assembly steps of the connector 100, and is conducive to reducing the number of parts of the connector 100 and saving costs. At the same time, since the elastic engaging portion 52 and the insulating partition portion 51 are both made of insulating materials, it is conducive to ensuring the insulation between the contact terminal 30 and the housing 20.

[0046] In some embodiments, in combination Figure 4 As shown, a plurality of contact terminals 30 are distributed along the circumference of the inner circumferential surface 22. A plurality of elastic clamping parts 52 are distributed along the circumferential direction of the inner circumferential surface 22. The elastic clamping parts 52 are arranged in a staggered manner with the contact terminals 30 along the circumferential direction, thereby avoiding the gaps on both sides of the elastic clamping parts 52 causing the creepage distance between the contact terminals 30 and the housing 20 to be shortened. In some embodiments, along the circumferential direction of the inner circumferential surface 22, the setting angle of the elastic clamping parts 52 corresponds to the middle angle between two adjacent contacts.

[0047] In some embodiments, in combination Figure 3 and Figure 6As shown, the elastic engaging portion 52 is provided with an introduction slope 521 and a locking surface 522, and the introduction slope 521 and the locking surface 522 are respectively arranged on the side of the elastic engaging portion 52 facing the inner peripheral surface 22. Specifically, for the direction F1 in which the first insulator 40 or the second insulator 50 enters the receiving cavity 21, the introduction slope 521 is arranged obliquely relative to the direction, and the locking surface 522 is perpendicular or nearly perpendicular to the direction. In the process of the second insulator 50 entering the receiving cavity 21, the introduction slope 521 abuts against the housing 20, and the pressure on the introduction slope 521 causes the elastic engaging portion 52 to shrink toward the inner peripheral side. Along the direction F1 in which the second insulator 50 enters the receiving cavity 21, the introduction slope 521 is arranged forward relative to the locking surface 522. After the compression of the elastic engaging portion 52 is released and a portion of the introduction slope 521 and the locking surface 522 is accommodated in the slot 25 , the locking surface 522 abuts against the slot 25 , thereby restricting the second insulator 50 and the first insulator 40 from exiting the accommodating cavity 21 .

[0048] In some embodiments, in combination Figure 3 and Figure 5 As shown, the card slot 25 is extended along the inner circumference of the receiving cavity 21. The internal space of the card slot 25 is cylindrical. And the opening direction of the card slot 25 is toward the center of the receiving cavity 21. In some embodiments, the card slot 25 is arranged on the inner circumference side of the first peripheral wall portion 24. In other embodiments, a plurality of card slots 25 are distributed along the inner circumference of the receiving cavity 21. The number of the card slots 25 corresponds to the number of the elastic snap-fitting portions 52. The elastic snap-fitting portions 52 are accommodated in the corresponding card slots 25.

[0049] In some embodiments, in combination Figure 4 As shown, the arc length of the insulating partition part 51 along the circumferential direction is greater than the arc length of the elastic clamping part 52 along the circumferential direction. Specifically, along the circumference of the inner circumferential surface 22, since the arc length of the insulating partition part 51 is greater than the arc length of the elastic clamping part 52, the surface of the insulating partition part 51 has a larger edge length, which is conducive to increasing the electrical isolation between the contact terminal 30 and the housing 20, so that the insulating partition part 51 has a more obvious electrical isolation effect. At the same time, since the width of the elastic clamping part 52 is small, the elastic clamping part 52 is more easily deformed, thereby reducing the difficulty of assembling the second insulator 50 into the housing 20.

[0050] In some embodiments, in combination Figure 7As shown, a positioning groove 53 is provided on the outer peripheral side of the second insulator 50. The outer shell 20 is provided with an elastic locking portion 26. The elastic locking portion 26 abuts against the inner wall surface of the positioning groove 53. Specifically, in the process of the second insulator 50 entering the receiving cavity 21, the elastic locking portion 26 undergoes elastic contraction. After the second insulator 50 is completely accommodated in the receiving cavity 21, the elastic locking portion 26 elastically recovers and is at least partially accommodated in the positioning groove 53. The elastic locking portion 26 abuts against the inner wall surface of the positioning groove 53, thereby limiting the second insulator 50 from exiting the outer shell 20. More specifically, the positioning groove 53 is provided on the side of the insulating partition portion 51 facing the inner peripheral surface 22 of the receiving cavity 21. In some other embodiments, the first insulator 40 or the second insulator 50 can also be snap-fitted through other structural forms.

[0051] In some embodiments, the insulating partition portion 51 is cylindrical, and the insulating partition portion 51 is arranged around the inner circumference of the receiving cavity 21, and the position of the insulating partition portion 51 corresponds to the shortest relative path L1 between all contact terminals 30 and the inner circumference 22 of the receiving cavity 21. Specifically, a single cylindrical insulating partition portion 51 can be used to surround the insulating covering portion 41, thereby improving the insulation effect of the insulating partition portion 51, which is conducive to further increasing the creepage distance. In some embodiments, when the insulating partition portion 51 is cylindrical, the positioning groove 53 is arranged on the outer circumference of the insulating partition portion 51.

[0052] In some embodiments, in combination Figure 4 As shown, a plurality of insulating partitions 51 are distributed along the inner circumferential surface 22, and the position of each insulating partition 51 corresponds to the shortest relative path L1 between at least one contact terminal 30 and the inner circumferential surface 22 of the receiving cavity 21. Specifically, a gap is formed between two insulating partitions 51 adjacent to each other in the circumferential direction of the inner circumferential surface 22, and the gap is staggered with the contact terminal 30 in the circumferential direction, so as to ensure the insulation between the contact terminal 30 and the housing 20. In some embodiments, for the edge of the insulating partition 51 close to the port of the receiving cavity 21, the position of the edge is close to or consistent with the position of the edge of the first circumferential wall portion 24 away from the mounting portion 23, so that the insulating partition 51 can have good insulation and be fully protected by the first circumferential wall portion 24.

[0053] In some embodiments, in combination Figure 3 and Figure 5 As shown, the connector 100 further includes a third insulator 60. The third insulator 60 is held between the first insulator 40 and the housing 20. The contact terminal 30 is inserted into the insulating cover 41 and the third insulator 60 at the same time. Specifically, since the third insulator 60 and the first insulator 40 cover the periphery of the contact terminal 30 at the same time, the insulation effect on the terminal can be improved.

[0054] In some embodiments, in combination Figure 3 and Figure 5 As shown, the housing 20 is further provided with a second peripheral wall portion 28. The second peripheral wall portion 28 and the first peripheral wall portion 24 are arranged on two sides opposite to the mounting portion 23. The second peripheral wall portion 28 is arranged around the outer periphery of the third insulator 60, so as to provide reliable protection for the third insulator 60. In some embodiments, the second peripheral wall portion 28 and the first peripheral wall portion 24 are respectively connected and arranged in an integrated manner with the mounting portion 23, so as to simplify the assembly steps of the connector 100.

[0055] In some embodiments, in combination Figure 3 and Figure 5 As shown, the housing 20 forms a limiting step surface 27 on the inner circumferential surface 22 of the receiving cavity 21. The direction of the limiting step surface 27 is the same as the direction from the third insulator 60 to the insulating cover 41. A portion of the third insulator 60 is abutted against the limiting step surface 27, and the other portion is abutted against the first insulator 40. When the first insulator 40 is positioned and accommodated in the receiving cavity 21, since one side of the third insulator 60 is abutted by the first insulator 40 and the other side is limited by the limiting step surface 27, the third insulator 60 can be positioned in the receiving cavity 21. After the first insulator 40 is assembled, the third insulator 60 can be positioned at the same time, which is conducive to simplifying the assembly steps of the connector 100. In some embodiments, the limiting step surface 27 is provided on the inner circumferential side of the mounting portion 23.

[0056] In some embodiments, in combination Figure 3 and Figure 5 As shown, a sealing gasket 70 is abutted against the third insulator 60 and the first insulator 40 .

[0057] In some other embodiments, the third insulator 60 may be snap-fitted to the housing 20, and at least one of the first insulator 40 and the second insulator 50 may abut against a step surface. The direction of the step surface is the same as the direction from the first insulator 40 to the third insulator 60, so that after the third insulator 60 is assembled into the housing 20, the first insulator 40 can be positioned in the housing 20.

[0058] The above implementation modes are merely descriptions of the preferred implementation modes of the present application, and are not intended to limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements made to the technical solutions of the present application by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present application.

Claims

1. A connector, characterized in that: include: The housing encloses the receiving cavity; At least one contact terminal, the contact terminal is accommodated in the receiving cavity; A first insulator, positioned and accommodated in the receiving cavity; The first insulator is provided with an insulating covering portion; the insulating covering portion is provided with at least one contact terminal; the inner circumference of the receiving cavity surrounds the outer circumference of the insulating covering portion, and the inner circumference of the receiving cavity is spaced apart from the outer circumference of the insulating covering portion; and The second insulator is provided with an insulating partition portion connected to the first insulator; the insulating partition portion is arranged between the insulating covering portion and the inner circumferential surface of the accommodating cavity, and the outer circumferential side of the insulating covering portion is spaced apart from the insulating partition portion; along the circumferential direction of the inner circumferential surface, the position of the insulating partition portion at least corresponds to the shortest relative path between the contact terminal and the inner circumferential surface of the accommodating cavity.

2. The connector according to claim 1, characterized in that: The housing is provided with a mounting portion and a first peripheral wall portion connected to one side of the mounting portion; the mounting portion and the inner peripheral sides of the first peripheral wall portion enclose a receiving cavity.

3. The connector according to claim 1, characterized in that: The insulating spacer portion is integrally connected to the first insulator.

4. The connector according to claim 1, characterized in that: The second insulator is connected to the first insulator; the second insulator is snap-fitted with the shell.

5. The connector according to claim 4, characterized in that: The second insulator is provided with an elastic clamping portion connected to the first insulator; the elastic clamping portion is arranged between two circumferentially adjacent insulating partition portions; the inner circumferential surface of the accommodating cavity is provided with a clamping groove; the clamping groove is used to accommodate the elastic clamping portion; the elastic clamping portion can be abutted against the inner wall surface of the clamping groove.

6. The connector according to claim 5, characterized in that: The arc length of the insulating partition portion along the circumferential direction is greater than the arc length of the elastic clamping portion along the circumferential direction.

7. The connector according to claim 4, characterized in that: A positioning groove is provided on the outer peripheral side of the second insulator; an elastic locking portion is provided on the outer shell; and the elastic locking portion abuts against the inner wall surface of the positioning groove.

8. The connector according to claim 4, characterized in that: It also includes a third insulator; the third insulator is supported between the first insulator and the shell; and the contact terminal is inserted into the insulating covering part and the third insulator at the same time.

9. The connector according to claim 8, characterized in that: The shell forms a limiting step surface on the inner circumferential surface of the accommodating cavity; the direction of the limiting step surface is the same as the direction from the third insulator to the insulating covering part; a part of the third insulator is abutted against the limiting step surface, and the other part is abutted against the first insulator.

10. The connector according to claim 1, characterized in that The insulating partition portion is cylindrical and is arranged around the inner circumference of the receiving cavity. The position of the insulating partition portion corresponds to the shortest relative path between all the contact terminals and the inner circumference of the receiving cavity; or, a plurality of the insulating partition portions are distributed along the inner circumference, and the position of each of the insulating partition portions corresponds to the shortest relative path between at least one of the contact terminals and the inner circumference of the receiving cavity.

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