Connector

Abstract

The utility model discloses a connector. The connector includes: an outer shielding case including a front end wall and a rear port which are opposite in a longitudinal direction thereof, and a top wall and a bottom opening which are opposite in a height direction thereof, and a mounting port is formed in the top wall; the inner insulating shell is inserted into the outer shielding shell from the rear port of the outer shielding shell and is provided with an insertion cavity; the electric transmission piece is inserted into the insertion cavity of the inner insulating shell and is led out from the rear port of the outer shielding shell; the conductive terminal is welded to the front end of the electric transmission piece; the insulating retainer is arranged in the bottom opening of the outer shielding shell and is used for retaining and positioning the conductive terminal; and the fastening assembly enters the inner insulating shell through a mounting port in the top wall of the outer shielding shell and is used for fastening the conductive terminal to the matching terminal. According to the utility model, the connector is simple in structure and small in size, the miniaturization of the connector can be realized, and the functions of waterproof sealing, electromagnetic shielding, high-voltage interlocking, finger protection and the like can be realized at the same time.

Description

Technical Field

[0001] The utility model relates to a connector. Background Art

[0002] In new energy vehicles, the high-voltage bolt connector is a very important component. It is generally used for the electrical connection between the charging station and the battery, transmitting electrical energy to the rechargeable battery to charge the rechargeable battery in the battery pack. In the prior art, the connector at the charging station has the problems of complex structure and large size, and it is difficult to simultaneously achieve functions such as waterproof sealing, electromagnetic shielding, high-voltage interlocking and finger protection. Utility Model Content

[0003] The purpose of the present invention is to solve at least one aspect of the above-mentioned problems and defects in the prior art.

[0004] According to one aspect of the utility model, a connector is provided. The connector comprises: an outer shield shell, comprising a front end wall and a rear port opposite in the longitudinal direction thereof and a top wall and a bottom opening opposite in the height direction thereof, and a mounting port is formed on the top wall; an inner insulating shell, inserted into the outer shield shell from the rear port of the outer shield shell and having an insertion cavity connected to the rear port, the bottom opening and the mounting port of the outer shield shell; an electric transmission member, inserted into the insertion cavity of the inner insulating shell and led out from the rear port of the outer shield shell; a conductive terminal, welded to the front end of the electric transmission member inserted into the insertion cavity, for electrical contact with the mating terminal of the mating connector; an insulating retainer, installed in the bottom opening of the outer shield shell, for holding and positioning the conductive terminal; and a fastening assembly, entering the inner insulating shell via the mounting port on the top wall of the outer shield shell, for fastening the conductive terminal to the mating terminal.

[0005] According to another exemplary embodiment of the utility model, the electrical transmission component includes a flat metal bar and an outer insulating layer covering the metal bar, the front end of the metal bar is exposed from the outer insulating layer, and the conductive terminal is cylindrical and vertically welded to the front end of the metal bar.

[0006] According to another exemplary embodiment of the utility model, the conductive terminal includes: a first cylindrical portion, located at one end thereof; a second cylindrical portion, located at the other end thereof; and a flange portion, located between the first cylindrical portion and the second cylindrical portion. An insertion hole is formed on the front end of the metal bar, the first cylindrical portion is inserted into and welded into the insertion hole, the flange portion is welded to the surface of the front end of the metal bar, and the end face of the second cylindrical portion is used to axially electrically contact with the end face of the mating terminal.

[0007] According to another exemplary embodiment of the utility model, the insulating retaining body includes: an insulating bracket fixed to the outer shielding shell and the inner insulating shell; and an insulating sleeve formed on the insulating bracket, and the second cylindrical portion of the conductive terminal is inserted and retained in the insulating sleeve of the insulating retaining body.

[0008] According to another exemplary embodiment of the utility model, a first elastic buckle and a second elastic buckle are formed on the insulating bracket, and the first elastic buckle and the second elastic buckle are respectively engaged to the outer shielding shell and the inner insulating shell to fix the insulating retaining body to the outer shielding shell and the inner insulating shell.

[0009] According to another exemplary embodiment of the utility model, the fastening assembly includes: a bolt passing through the conductive terminal and being threadedly connected to the nut in the mating terminal or the mating connector to fasten the conductive terminal to the mating terminal; and an insulating end cap, which is sleeved or formed on the end of the bolt to prevent a person's fingers from touching the end of the bolt. The insulating sleeve extends beyond the end surface of the second cylindrical portion of the conductive terminal, the insulating end cap is located in the insulating sleeve, and the gap between the insulating end cap and the insulating sleeve is smaller than a person's finger to prevent a person's finger from being inserted.

[0010] According to another exemplary embodiment of the utility model, the fastening assembly further includes: a first insulator formed on the head of the bolt; a shielding cap for mounting on the mounting port of the outer shielding shell; and a second insulator formed on the inner side of the shielding cap. The first insulator and the second insulator are engaged to engage the shielding cap and the bolt together and to electrically isolate the shielding cap and the bolt; the shielding cap is suitable for covering the mounting port and being suitable for electrically contacting the outer peripheral surface of the peripheral wall of the mounting port to prevent electromagnetic leakage.

[0011] According to another exemplary embodiment of the present utility model, an engaging portion suitable for engaging with an operating tool is formed on the outer side of the shielding cap, so that the bolt can be tightened or loosened by the operating tool engaged with the engaging portion.

[0012] According to another exemplary embodiment of the utility model, the fastening assembly further includes: a sealing ring, which is sleeved on the second insulator and is adapted to be radially squeezed between the second insulator and the inner circumferential surface of the peripheral wall of the mounting port to seal the mounting port.

[0013] According to another exemplary embodiment of the utility model, the fastening assembly is pre-installed into the inner insulating shell, a limiting flange is formed on the first insulator, and a limiting protrusion is formed in the inner insulating shell; the limiting protrusion is used to interfere with the limiting flange to prevent the fastening assembly pre-installed into the inner insulating shell from detaching from the inner insulating shell.

[0014] According to another exemplary embodiment of the utility model, the connector includes two of the electrical transmission components, two of the conductive terminals and two of the fastening assemblies, and the two conductive terminals are respectively welded to the front ends of the two electrical transmission components; the inner insulating shell has two insertion cavities, the insulating retaining body has two insulating sleeves, and the outer shielding shell has two mounting ports; the two electrical transmission components are respectively inserted into the two insertion cavities, the two conductive terminals are respectively retained in the two insulating sleeves, and the two fastening assemblies enter the inner insulating shell via the two mounting ports.

[0015] According to another exemplary embodiment of the utility model, the front ends of the two electric transmission components are arranged side by side in the lateral direction of the outer shielding shell and are at the same height in the height direction of the outer shielding shell; the outlets of the two insertion cavities of the inner insulating shell are spaced apart in the height direction and at least partially overlap, so that the two electric transmission components led out from the outlets of the two insertion cavities are spaced apart in the height direction and at least partially overlap.

[0016] According to another exemplary embodiment of the utility model, the connector also includes: a low-voltage detection terminal, which is fixed in the insulating retaining body and located between the two insulating sleeves, and is used to mate with the mating detection terminal of the mating connector. After the connector is mated with the mating connector, the conductive terminal of the connector is electrically connected to the mating terminal of the mating connector to connect the high-voltage load circuit; after the connector is mated with the mating connector, the low-voltage detection terminal is mated with the mating detection terminal to connect the low-voltage control circuit and control the power supply to the high-voltage load circuit through the low-voltage control circuit.

[0017] According to another exemplary embodiment of the utility model, a circle of grooves is formed on the bottom wall of the outer shielding shell, and the circle of grooves surrounds the bottom opening of the outer shielding shell. When the connector is mated with the mating connector, the peripheral portion of the mating shielding shell of the mating connector is inserted into the groove of the outer shielding shell and electrically contacts the outer shielding shell.

[0018] According to another exemplary embodiment of the utility model, the connector further comprises: a sealing ring installed in the groove of the outer shielding shell. When the connector is mated with the mating connector, the sealing ring is radially squeezed between the outer shielding shell and the mating shielding shell to achieve a seal between the two.

[0019] According to another exemplary embodiment of the utility model, the connector further comprises: a sealing member inserted into the rear port of the outer shield shell and used to seal the rear port of the outer shield shell. The electrical transmission member passes through the sealing member, and the sealing member is squeezed between the outer insulating layer of the electrical transmission member and the inner circumference of the rear port of the outer shield shell.

[0020] According to another exemplary embodiment of the utility model, the connector further comprises: a rear end cover mounted on the rear end of the outer shield shell and formed with a through hole allowing the electric transmission member to pass through. The rear end cover is used to fix the electric transmission member to the rear end of the outer shield shell to prevent the electric transmission member from shaking.

[0021] According to another exemplary embodiment of the utility model, an elastic buckle is formed on the rear end cover, and a protrusion is formed on the outer peripheral surface of the rear end of the outer shielding shell, and the protrusion is engaged in the card groove of the elastic buckle to fix the rear end cover to the rear end of the outer shielding shell.

[0022] According to another exemplary embodiment of the utility model, the seal has two opposite ends in the longitudinal direction of the outer shielding shell, and the two ends of the seal respectively abut between the rear end surface of the inner insulating shell and the rear end cover to position the seal in the rear port of the outer shielding shell.

[0023] In the aforementioned exemplary embodiments according to the present invention, the connector has a simple structure and a small size, which can realize the miniaturization of the connector and can simultaneously realize functions such as waterproof sealing, electromagnetic shielding, high-voltage interlocking and finger protection.

[0024] Other objects and advantages of the present invention will become apparent from the following description of the present invention with reference to the accompanying drawings, which will help to provide a comprehensive understanding of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional schematic diagram showing a connector according to an exemplary embodiment of the utility model;

[0026] Figure 2 A longitudinal cross-sectional view showing a connector according to an exemplary embodiment of the present invention when viewed from the top;

[0027] Figure 3A longitudinal cross-sectional view showing a connector according to an exemplary embodiment of the present invention when viewed from the bottom;

[0028] Figure 4 A perspective schematic diagram showing an outer shielding shell and an inner insulating shell of a connector according to an exemplary embodiment of the utility model;

[0029] Figure 5 A perspective schematic diagram showing a connector according to an exemplary embodiment of the present invention, wherein a fastening assembly has not been pre-installed into the inner insulating housing;

[0030] Figure 6 A longitudinal cross-sectional view of a connector according to an exemplary embodiment of the present invention is shown, wherein the fastening assembly is pre-installed into the inner insulating housing and is retained in the inner insulating housing;

[0031] Figure 7 A longitudinal cross-sectional view of a connector according to an exemplary embodiment of the present utility model is shown, wherein a low voltage detection terminal is shown;

[0032] Figure 8 A perspective schematic diagram showing a fastening assembly of a connector according to an exemplary embodiment of the utility model;

[0033] Fig. 9 A cross-sectional view showing a fastening assembly of a connector according to an exemplary embodiment of the present utility model;

[0034] Fig.10 An exploded schematic diagram showing a fastening assembly of a connector according to an exemplary embodiment of the utility model;

[0035] Fig.11 A perspective schematic diagram showing two electrical transmission members of a connector according to an exemplary embodiment of the present utility model;

[0036] Fig.12 A cross-sectional view showing a fastening assembly, an electric transmission member and a conductive terminal of a connector according to an exemplary embodiment of the present utility model;

[0037] Fig.13 The exploded schematic diagram shows a fastening assembly, an electric transmission member and a conductive terminal of a connector according to an exemplary embodiment of the present invention. DETAILED DESCRIPTION

[0038] The technical solution of the utility model is further specifically described below through examples and in combination with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the implementation mode of the utility model with reference to the accompanying drawings is intended to explain the overall utility model concept of the utility model, and should not be understood as a limitation of the utility model.

[0039] In addition, in the detailed description below, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the disclosed embodiments. However, it is apparent that one or more embodiments may be implemented without these specific details. In other cases, known structures and devices are embodied in a schematic manner to simplify the accompanying drawings.

[0040] According to an overall technical concept of the utility model, a connector is provided. The connector comprises: an outer shield shell, comprising a front end wall and a rear port opposite in the longitudinal direction thereof and a top wall and a bottom opening opposite in the height direction thereof, and a mounting port is formed on the top wall; an inner insulating shell, inserted into the outer shield shell from the rear port of the outer shield shell and having an insertion cavity connected with the rear port, the bottom opening and the mounting port of the outer shield shell; an electric transmission member, inserted into the insertion cavity of the inner insulating shell and led out from the rear port of the outer shield shell; a conductive terminal, welded to the front end of the electric transmission member inserted into the insertion cavity, for electrical contact with a mating terminal of a mating connector; an insulating retainer, installed in the bottom opening of the outer shield shell, for retaining and positioning the conductive terminal; and a fastening assembly, entering the inner insulating shell via the mounting port on the top wall of the outer shield shell, for fastening the conductive terminal to the mating terminal.

[0041] Figure 1 A three-dimensional schematic diagram showing a connector according to an exemplary embodiment of the utility model; Figure 2 A longitudinal cross-sectional view showing a connector according to an exemplary embodiment of the present invention when viewed from the top; Figure 3 A longitudinal cross-sectional view showing a connector according to an exemplary embodiment of the present invention when viewed from the bottom; Figure 4 A perspective schematic diagram showing an outer shielding shell 1 and an inner insulating shell 2 of a connector according to an exemplary embodiment of the utility model; Figure 5 A perspective schematic diagram showing a connector according to an exemplary embodiment of the present utility model, wherein a fastening assembly 6 has not been pre-installed into the inner insulating housing 2; Figure 6 A longitudinal cross-sectional view of a connector according to an exemplary embodiment of the present invention is shown, wherein the fastening assembly 6 is pre-installed into the inner insulating housing 2 and is retained in the inner insulating housing 2; Figure 7A longitudinal cross-sectional view of a connector according to an exemplary embodiment of the present utility model is shown, wherein a low voltage detection terminal 50 is shown; Figure 8 A perspective schematic diagram showing a fastening assembly 6 of a connector according to an exemplary embodiment of the present utility model; Fig. 9 A cross-sectional view showing a fastening assembly 6 of a connector according to an exemplary embodiment of the present utility model; Fig.10 An exploded schematic diagram showing a fastening assembly 6 of a connector according to an exemplary embodiment of the present utility model; Fig.11 A perspective schematic diagram showing two electrical transmission members 3 of a connector according to an exemplary embodiment of the present utility model; Fig.12 A cross-sectional view showing a fastening assembly 6, an electric transmission member 3 and a conductive terminal 4 of a connector according to an exemplary embodiment of the present utility model; Fig.13 The exploded schematic diagram shows a fastening assembly 6 , an electric transmission member 3 and a conductive terminal 4 of a connector according to an exemplary embodiment of the present utility model.

[0042] like Figures 1 to 13 As shown, in an exemplary embodiment of the utility model, a connector is disclosed. The connector includes: an outer shielding shell 1, an inner insulating shell 2, an electric transmission member 3, a conductive terminal 4, an insulating retainer 5 and a fastening assembly 6. The outer shielding shell 1 includes a front end wall and a rear port 101 opposite to each other in its longitudinal direction Y and a top wall and a bottom opening 102 opposite to each other in its height direction Z. A mounting port 103 is formed on the top wall of the outer shielding shell 1. The inner insulating shell 2 is inserted into the outer shielding shell 1 from the rear port 101 of the outer shielding shell 1 and has an insertion cavity 201 that communicates with the rear port 101, the bottom opening 102 and the mounting port 103 of the outer shielding shell 1. The electric transmission member 3 is inserted into the insertion cavity 201 of the inner insulating shell 2 and is led out from the rear port 101 of the outer shielding shell 1. The conductive terminal 4 is welded to the front end 3a of the electric transmission member 3 inserted into the aforementioned insertion cavity 201, for electrical contact with the mating terminal (not shown) of the mating connector (not shown). The insulating retainer 5 is installed in the bottom opening 102 of the outer shield shell 1 to hold and position the conductive terminal 4. The fastening assembly 6 enters the inner insulating shell 2 through the installation port 103 on the top wall of the outer shield shell 1 to fasten the conductive terminal 4 to the mating terminal.

[0043] like Figures 1 to 13 As shown, in the illustrated embodiment, the electric transmission member 3 includes a flat metal bar 30 and an outer insulating layer 31 covering the metal bar 30, the front end 3a of the metal bar 30 is exposed from the outer insulating layer 31, and the conductive terminal 4 is cylindrical and vertically welded to the front end 3a of the metal bar 30. In an exemplary embodiment of the present utility model, the aforementioned metal bar 30 can be an aluminum bar, which can reduce the manufacturing cost.

[0044] like Figures 1 to 13 As shown, in the illustrated embodiment, the conductive terminal 4 includes: a first cylindrical portion 41, a second cylindrical portion 42 and a flange portion 43. The first cylindrical portion 41 is located at one end of the conductive terminal 4. The second cylindrical portion 42 is located at the other end of the conductive terminal 4. The flange portion 43 is located between the first cylindrical portion 41 and the second cylindrical portion 42. An insertion hole 301 is formed on the front end 3a of the metal bar 30, the first cylindrical portion 41 is inserted and welded into the insertion hole 301, the flange portion 43 is welded to the surface of the front end 3a of the metal bar 30, and the end face of the second cylindrical portion 42 is used to axially electrically contact with the end face of the mating terminal.

[0045] like Figures 1 to 13 As shown, in the illustrated embodiment, the insulating holder 5 includes: an insulating bracket 51 and an insulating sleeve 52. The insulating bracket 51 is fixed to the outer shielding shell 1 and the inner insulating shell 2. The insulating sleeve 52 is formed on the insulating bracket 51. The second cylindrical portion 42 of the conductive terminal 4 is inserted and held in the insulating sleeve 52 of the insulating holder 5.

[0046] like Figures 1 to 13 As shown, in the illustrated embodiment, a first elastic buckle 5a and a second elastic buckle 5b are formed on the insulating bracket 51, and the first elastic buckle 5a and the second elastic buckle 5b are respectively joined to the outer shielding shell 1 and the inner insulating shell 2 to fix the insulating retaining body 5 to the outer shielding shell 1 and the inner insulating shell 2.

[0047] like Figures 1 to 13 As shown, in the illustrated embodiment, the fastening assembly 6 includes: a bolt 60 and an insulating end cap 61. The bolt 60 passes through the conductive terminal 4 and is used to be threadedly connected with a nut in a mating terminal or a mating connector to fasten the conductive terminal 4 to the mating terminal. The insulating end cap 61 is sleeved or molded on the end of the bolt 60 to prevent human fingers from touching the end of the bolt 60. The insulating sleeve 52 extends beyond the end surface of the second cylindrical portion 42 of the conductive terminal 4, the insulating end cap 61 is located in the insulating sleeve 52, and the gap between the insulating end cap 61 and the insulating sleeve 52 is smaller than a human finger to prevent human fingers from being inserted. In an exemplary embodiment of the utility model, the insulating end cap 61 can be an injection molded part directly molded on the end of the bolt 60 by an embedded injection molding process.

[0048] like Figures 1 to 13As shown, in the illustrated embodiment, the fastening assembly 6 also includes: a first insulator 62, a shielding cap 63 and a second insulator 64. The first insulator 62 is formed on the head of the bolt 60. The shielding cap 63 is used to be mounted on the mounting port 103 of the outer shielding shell 1. The second insulator 64 is formed on the inner side of the shielding cap 63. The first insulator 62 and the second insulator 64 are engaged to engage the shielding cap 63 and the bolt 60 together and to electrically isolate the shielding cap 63 and the bolt 60. In an exemplary embodiment of the utility model, the first insulator 62 can be an injection molded part directly molded on the head of the bolt 60 by an embedded injection molding process. The second insulator 64 can be an injection molded part directly molded on the inner side of the shielding cap 63 by an embedded injection molding process. The shielding cap 63 is suitable for covering the mounting port 103 and is suitable for electrically contacting the outer peripheral surface of the peripheral wall of the mounting port 103 to prevent electromagnetic leakage.

[0049] like Figures 1 to 13 As shown, in the illustrated embodiment, an engaging portion 63a adapted to engage with an operating tool (not shown) is formed on the outer side of the shielding cap 63, so that the operating tool engaged with the engaging portion 63a can be used to tighten or loosen the bolt 60. In the illustrated embodiment, the engaging portion 63a is a concave portion with a plum blossom-shaped cross section.

[0050] like Figures 1 to 13 As shown, in the illustrated embodiment, the fastening assembly 6 further includes a sealing ring 65 which is sleeved on the second insulator 64 and is adapted to be radially compressed between the second insulator 64 and the inner circumferential surface of the circumferential wall of the mounting port 103 to seal the mounting port 103 .

[0051] like Figures 1 to 13 As shown, in the illustrated embodiment, the fastening assembly 6 is pre-installed in the inner insulating shell 2, a limiting flange 62a is formed on the first insulator 62, and a limiting protrusion 2a is formed in the inner insulating shell 2. The limiting protrusion 2a is used to interfere with the limiting flange 62a to prevent the fastening assembly 6 pre-installed in the inner insulating shell 2 from being separated from the inner insulating shell 2.

[0052] like Figures 1 to 13 As shown, in the illustrated embodiment, the connector includes two electrical transmission members 3, two conductive terminals 4 and two fastening assemblies 6, and the two conductive terminals 4 are respectively welded to the front ends 3a of the two electrical transmission members 3. The inner insulating shell 2 has two insertion cavities 201, the insulating retaining body 5 has two insulating sleeves 52, and the outer shielding shell 1 has two mounting ports 103. The two electrical transmission members 3 are respectively inserted into the two insertion cavities 201, the two conductive terminals 4 are respectively retained in the two insulating sleeves 52, and the two fastening assemblies 6 enter the inner insulating shell 2 through the two mounting ports 103.

[0053] like Figures 1 to 13As shown, in the illustrated embodiment, the front ends 3a of the two power transmission members 3 are arranged side by side in the lateral direction X of the outer shielding shell 1 and are at the same height in the height direction Z of the outer shielding shell 1. The outlets of the two insertion cavities 201 of the inner insulating shell 2 are spaced apart in the height direction Z and at least partially overlapped, so that the two power transmission members 3 led out of the outlets of the two insertion cavities 201 are spaced apart in the height direction Z and at least partially overlapped.

[0054] like Figures 1 to 13 As shown, in the illustrated embodiment, the connector also includes a low-voltage detection terminal 50, which is fixed to the insulating retainer 5 and located between the two insulating sleeves 52, and is used to mate with the matching detection terminal (not shown) of the matching connector. After the connector is matched with the matching connector, the conductive terminal 4 of the connector is electrically connected to the matching terminal of the matching connector to connect the high-voltage load circuit (not shown). After the connector is matched with the matching connector, the low-voltage detection terminal 50 is matched with the matching detection terminal to connect the low-voltage control circuit (not shown) and control the power supply to the high-voltage load circuit through the low-voltage control circuit. In this way, the safety of use can be improved.

[0055] like Figures 1 to 13 As shown, in the illustrated embodiment, a circle of grooves 104 is formed on the bottom wall of the outer shield shell 1, and the circle of grooves 104 surrounds the bottom opening 102 of the outer shield shell 1. When the connector is mated with a mating connector, the peripheral portion of the mating shield shell (not shown) of the mating connector is inserted into the groove 104 of the outer shield shell 1 and electrically contacts the outer shield shell 1.

[0056] like Figures 1 to 13 As shown, in the illustrated embodiment, the connector further comprises a sealing ring 7, which is installed in the groove 104 of the outer shielding shell 1. When the connector is mated with a mating connector, the sealing ring 7 is radially squeezed between the outer shielding shell 1 and the mating shielding shell to achieve a seal therebetween.

[0057] like Figures 1 to 13 As shown, in the illustrated embodiment, the connector further comprises a sealing member 8. The sealing member 8 is inserted into the rear port 101 of the outer shield shell 1 to seal the rear port 101 of the outer shield shell 1. The electric transmission member 3 passes through the sealing member 8, and the sealing member 8 is squeezed between the outer insulating layer 31 of the electric transmission member 3 and the inner circumference of the rear port 101 of the outer shield shell 1.

[0058] like Figures 1 to 13 As shown, in the illustrated embodiment, the connector further includes a rear end cover 9. The rear end cover 9 is mounted on the rear end of the outer shield shell 1 and is formed with a through hole allowing the electric transmission member 3 to pass through. The rear end cover 9 is used to fix the electric transmission member 3 to the rear end of the outer shield shell 1 to prevent the electric transmission member 3 from shaking.

[0059] like Figures 1 to 13 As shown, in the illustrated embodiment, an elastic buckle 9b is formed on the rear end cover 9, and a protrusion 1b is formed on the outer peripheral surface of the rear end of the outer shielding shell 1, and the protrusion 1b is engaged in the card groove 9a of the elastic buckle 9b to fix the rear end cover 9 to the rear end of the outer shielding shell 1.

[0060] like Figures 1 to 13 As shown, in the illustrated embodiment, the seal 8 has two opposite ends in the longitudinal direction Y of the outer shielding shell 1, and the two ends of the seal 8 respectively abut between the rear end surface of the inner insulating shell 2 and the rear end cover 9 to position the seal 8 in the rear port 101 of the outer shielding shell 1.

[0061] Those skilled in the art will appreciate that the embodiments described above are exemplary and can be improved upon by those skilled in the art. The structures described in the various embodiments can be freely combined without causing any conflicts in structure or principle, and these changes should fall within the scope of protection of the present utility model.

[0062] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to exemplify the preferred implementation modes of the present invention and should not be construed as limiting the present invention.

[0063] Although some embodiments of the general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined by the claims and their equivalents.

[0064] It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. In addition, any element number of the claims should not be construed as limiting the scope of the present invention.

Claims

1. A connector, characterized in that: include: An outer shielding shell (1) comprises a front end wall and a rear port (101) opposite to each other in its longitudinal direction (Y) and a top wall and a bottom opening (102) opposite to each other in its height direction (Z), and a mounting port (103) is formed on the top wall; An inner insulating shell (2) is inserted into the outer shielding shell (1) from the rear port (101) of the outer shielding shell (1) and has an insertion cavity (201) communicating with the rear port (101), the bottom opening (102) and the installation port (103) of the outer shielding shell (1); An electric transmission member (3) is inserted into the insertion cavity (201) of the inner insulating shell (2) and is led out from the rear port (101) of the outer shielding shell (1); A conductive terminal (4) is welded to the front end (3a) of the power transmission member (3) inserted into the insertion cavity (201) and is used for electrically contacting a mating terminal of a mating connector; an insulating retaining body (5) installed in the bottom opening (102) of the outer shielding shell (1) for retaining and positioning the conductive terminal (4); and A fastening assembly (6) enters the inner insulating shell (2) through a mounting port (103) on the top wall of the outer shielding shell (1) and is used to fasten the conductive terminal (4) to the mating terminal.

2. The connector according to claim 1, characterized in that: The electric transmission member (3) comprises a flat metal bar (30) and an outer insulating layer (31) covering the metal bar (30), a front end (3a) of the metal bar (30) being exposed from the outer insulating layer (31), and the conductive terminal (4) being cylindrical and vertically welded to the front end (3a) of the metal bar (30).

3. The connector according to claim 2, characterized in that: The conductive terminal (4) comprises: a first cylindrical portion (41) located at one end thereof; a second cylindrical portion (42) located at the other end thereof; and The flange portion (43) is located between the first cylindrical portion (41) and the second cylindrical portion (42). A socket (301) is formed on the front end (3a) of the metal bar (30), the first cylindrical portion (41) is inserted into and welded to the socket (301), the flange portion (43) is welded to the surface of the front end (3a) of the metal bar (30), and the end face of the second cylindrical portion (42) is used for axial electrical contact with the end face of the mating terminal.

4. The connector according to claim 3, characterized in that: The insulating retainer (5) comprises: an insulating support (51) fixed to the outer shielding shell (1) and the inner insulating shell (2); and An insulating sleeve (52) is formed on the insulating support (51). The second cylindrical portion (42) of the conductive terminal (4) is inserted into and held in the insulating sleeve (52) of the insulating holding body (5).

5. The connector according to claim 4, characterized in that: A first elastic buckle (5a) and a second elastic buckle (5b) are formed on the insulating bracket (51), and the first elastic buckle (5a) and the second elastic buckle (5b) are respectively joined to the outer shielding shell (1) and the inner insulating shell (2) to fix the insulating retaining body (5) to the outer shielding shell (1) and the inner insulating shell (2).

6. The connector according to claim 4, characterized in that: The fastening assembly (6) comprises: a bolt (60) passing through the conductive terminal (4) and being threadedly connected to a nut in the mating terminal or the mating connector to fasten the conductive terminal (4) to the mating terminal; and an insulating end cap (61) which is mounted on or formed on the end of the bolt (60) to prevent a person's fingers from touching the end of the bolt (60); The insulating sleeve (52) extends beyond the end surface of the second cylindrical portion (42) of the conductive terminal (4), the insulating end cap (61) is located in the insulating sleeve (52), and the gap between the insulating end cap (61) and the insulating sleeve (52) is smaller than a human finger to prevent the insertion of a human finger.

7. The connector according to claim 6, characterized in that: The fastening assembly (6) further comprises: a first insulator (62) formed on the head of the bolt (60); A shielding cap (63) for mounting on a mounting port (103) of the outer shielding shell (1); and a second insulator (64) formed on the inner side of the shielding cap (63), the first insulator (62) and the second insulator (64) being joined to join the shielding cap (63) and the bolt (60) together and to electrically isolate the shielding cap (63) and the bolt (60); The shielding cap (63) is suitable for covering the installation port (103) and for electrically contacting with the outer peripheral surface of the peripheral wall of the installation port (103) to prevent electromagnetic leakage.

8. The connector according to claim 7, characterized in that: An engaging portion (63a) adapted to engage with an operating tool is formed on the outer side of the shielding cap (63), so that the bolt (60) can be tightened or loosened by the operating tool engaged with the engaging portion (63a).

9. The connector according to claim 7, characterized in that: The fastening assembly (6) further comprises: A sealing ring (65) is sleeved on the second insulator (64) and is adapted to be radially compressed between the second insulator (64) and the inner circumferential surface of the circumferential wall of the installation port (103) to seal the installation port (103).

10. The connector according to claim 7, characterized in that: The fastening assembly (6) is pre-installed in the inner insulating shell (2), a limiting flange (62a) is formed on the first insulator (62), and a limiting protrusion (2a) is formed in the inner insulating shell (2); The limiting protrusion (2a) is used to interfere with the limiting flange (62a) to prevent the fastening assembly (6) pre-installed in the inner insulating shell (2) from being separated from the inner insulating shell (2).

11. The connector according to any one of claims 4 to 10, characterized in that: The connector comprises two electrical transmission members (3), two conductive terminals (4) and two fastening components (6), wherein the two conductive terminals (4) are respectively welded to the front ends (3a) of the two electrical transmission members (3); The inner insulating shell (2) has two insertion cavities (201), the insulating retaining body (5) has two insulating sleeves (52), and the outer shielding shell (1) has two mounting ports (103); The two electrical transmission components (3) are respectively inserted into the two insertion cavities (201), the two conductive terminals (4) are respectively retained in the two insulating sleeves (52), and the two fastening components (6) enter the inner insulating shell (2) via the two installation ports (103).

12. The connector according to claim 11, characterized in that: The front ends (3a) of the two power transmission members (3) are arranged side by side in the transverse direction (X) of the outer shielding shell (1) and are at the same height in the height direction (Z) of the outer shielding shell (1); The outlets of the two insertion cavities (201) of the inner insulating shell (2) are spaced apart in the height direction (Z) and at least partially overlap, so that the two electrical transmission members (3) led out from the outlets of the two insertion cavities (201) are spaced apart in the height direction (Z) and at least partially overlap.

13. The connector according to claim 11, characterized in that Also includes: A low voltage detection terminal (50) is fixed in the insulating retainer (5) and is located between the two insulating sleeves (52), and is used to mate with the mating detection terminal of the mating connector. After the connector is mated with the mating connector, the conductive terminal (4) of the connector is electrically connected to the mating terminal of the mating connector to connect the high-voltage load circuit; After the connector is mated with the mating connector, the low voltage detection terminal (50) is mated with the mating detection terminal to connect the low voltage control loop and control the power supply to supply power to the high voltage load loop through the low voltage control loop.

14. The connector according to claim 1, characterized in that: A circle of grooves (104) is formed on the bottom wall of the outer shielding shell (1), and the circle of grooves (104) surrounds the bottom opening (102) of the outer shielding shell (1); and When the connector is mated with the mating connector, the peripheral portion of the mating shielding shell of the mating connector is inserted into the groove (104) of the outer shielding shell (1) and is in electrical contact with the outer shielding shell (1).

15. The connector according to claim 14, characterized in that: Also includes: A sealing ring (7) is installed in the groove (104) of the outer shielding shell (1). When the connector is mated with the mating connector, the sealing ring (7) is radially squeezed between the outer shielding shell (1) and the mating shielding shell to achieve sealing between the two.

16. The connector according to claim 2, characterized in that Also includes: A sealing member (8) is inserted into the rear port (101) of the outer shielding shell (1) and is used to seal the rear port (101) of the outer shielding shell (1). The electric transmission member (3) passes through the sealing member (8), and the sealing member (8) is pressed between the outer insulating layer (31) of the electric transmission member (3) and the inner peripheral surface of the rear port (101) of the outer shield shell (1).

17. The connector according to claim 16, characterized in that Also includes: a rear end cover (9) mounted on the rear end of the outer shielding shell (1) and having a through hole for allowing the electric transmission member (3) to pass therethrough, The rear end cover (9) is used to fix the power transmission component (3) to the rear end of the outer shielding shell (1) to prevent the power transmission component (3) from shaking.

18. The connector according to claim 17, characterized in that: An elastic buckle (9b) is formed on the rear end cover (9), and a protrusion (1b) is formed on the outer peripheral surface of the rear end of the outer shielding shell (1), and the protrusion (1b) is engaged in the groove (9a) of the elastic buckle (9b) to fix the rear end cover (9) to the rear end of the outer shielding shell (1).

19. The connector according to claim 17, characterized in that: The seal (8) has two opposite ends in the longitudinal direction (Y) of the outer shielding shell (1), and the two ends of the seal (8) respectively abut between the rear end surface of the inner insulating shell (2) and the rear end cover (9) to position the seal (8) in the rear port (101) of the outer shielding shell (1).

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