Connector

Abstract

To provide a connector which allows downsizing, and which enables, at the same time, functions such as a waterproof seal, an electromagnetic shield, high-voltage interlock and finger protection.SOLUTION: A connector comprises: an outer shield shell 1 which has a front port, a rear port, an upper wall, a bottom opening part, and a fitting port formed on the upper wall; an inner insulation housing 2, inserted into the outer shield shell 1 from the rear port, which has an insertion cavity communicating with the rear port, the bottom opening part, and the fitting port of the outer shield shell 1; a power transmission component 3, inserted into the insertion cavity of the inner insulation housing 2, which is led out from the rear port; a conductive terminal 4 which is welded to a front end 3a of the power transmission component 3 inserted into the insertion cavity; an insulation holding body 5 which is fitted to the bottom opening part of the outer shield shell 1; and a fastening assembly which enters the inner insulation housing 2 through the fitting port on the upper wall of the outer shield shell 1.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims the benefit of Chinese Patent Application No. CN202420766112.7, filed with the State Intellectual Property Office of China on April 12, 2024, the entire disclosure of which is incorporated herein by reference.

[0002] The present invention relates to a connector. [Background technology]

[0003] In new energy vehicles, high-voltage bolt connectors are very important components and are generally used for electrical connection between the charging base and the battery, transmitting electrical energy to the charging battery to charge the charging battery of the battery pack. In the prior art, the connectors at the end of the charging base have problems such as a complex structure and a large volume, making it difficult to simultaneously achieve functions such as waterproof sealing, electromagnetic shielding, high-voltage interlocking, and finger protection. Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention has been made to overcome or mitigate at least one aspect of the above-mentioned disadvantages. [Means for solving the problem]

[0005] According to one aspect of the present invention, a connector is provided, the connector including: an outer shielding shell having front and rear ports on opposite longitudinal sides of the outer shielding shell, top and bottom openings on opposite height sides of the outer shielding shell, and a mounting port formed in the top wall; an inner insulating housing inserted into the outer shielding shell through the rear port of the outer shielding shell and having an insertion cavity communicating with the rear port, bottom opening, and mounting port of the outer shielding shell; an electrical transmission component inserted into the insertion cavity of the inner insulating housing and extending out from the rear port of the outer shielding shell; conductive terminals welded to front ends of the electrical transmission component that are inserted into the insertion cavity for electrical contact with mating terminals of a mating connector; an insulating retainer attached to the bottom opening of the outer shielding shell to hold and position the conductive terminals; and a fastener assembly entering the inner insulating housing through the mounting port in the top wall of the outer shielding shell to fasten the conductive terminals to the mating terminals.

[0006] According to an exemplary embodiment of the present invention, the electrical transmission component comprises a flat metal bar and an outer insulating layer covering the metal bar, a front end of the metal bar being exposed from the outer insulating layer, and a conductive terminal having a cylindrical shape and vertically welded to the front end of the metal bar.

[0007] According to another exemplary embodiment of the present invention, a conductive terminal includes a first cylindrical portion located at one end of the conductive terminal, a second cylindrical portion located at the other end of the conductive terminal, and a flange portion located between the first and second cylindrical portions. A socket is formed at the front end of a metal bar, the first cylindrical portion is inserted into and welded to the socket, the flange portion is welded to a surface of the front end of the metal bar, and an end surface of the second cylindrical portion is used for axial electrical contact with an end surface of a mating terminal.

[0008] According to another exemplary embodiment of the present invention, the insulating holder includes an insulating bracket fixed to the outer shield shell and the inner insulating housing, and an insulating sleeve formed on the insulating bracket, and the second cylindrical portion of the conductive terminal is inserted into and held in the insulating sleeve of the insulating holder.

[0009] According to another exemplary embodiment of the present invention, 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 engage with the outer shield shell and the inner insulating housing, respectively, to fix the insulating retainer to the outer shield shell and the inner insulating housing.

[0010] According to another exemplary embodiment of the present invention, a fastening assembly includes a bolt that passes through the conductive terminal to fasten the conductive terminal to a mating terminal for threaded connection with a nut in the mating terminal or mating connector, and an insulating end cap fitted or formed on the end of the bolt to prevent a person's finger from touching the end of the bolt. The insulating sleeve extends beyond an end face of the second cylindrical portion of the conductive terminal, the insulating end cap is located within the insulating sleeve, and a gap between the insulating end cap and the insulating sleeve is smaller than a person's finger to prevent insertion of a finger.

[0011] According to another exemplary embodiment of the present invention, a fastening assembly further includes a first insulator formed on the head of the bolt, a shielding cap for attachment to the attachment port of the outer shielding shell, and a second insulator formed inside the shielding cap. The first and second insulators engage with each other to join the shielding cap and the bolt together and electrically isolate the shielding cap from the bolt. The shielding cap is adapted to cover the attachment port and to form electrical contact with the outer peripheral surface of the peripheral wall of the attachment port to prevent electromagnetic leakage.

[0012] According to another exemplary embodiment of the present invention, a joint portion suitable for engagement with an operating tool is formed on the outside of the shield cap so that the bolt can be tightened or loosened through the operating tool engaged with the joint portion.

[0013] According to another exemplary embodiment of the present invention, the fastening assembly further includes a seal ring adapted to fit over the second insulator and to seal the attachment port by being radially compressed between an inner circumferential surface of the second insulator and a peripheral wall of the attachment port.

[0014] According to another exemplary embodiment of the present invention, the fastener assembly is pre-attached to the inner insulating housing, a limiting flange is formed on the first insulator, and a limiting protrusion is formed on the inner insulating housing, the limiting protrusion being used to interfere with the limiting flange and prevent the pre-attached fastener assembly from being removed from the inner insulating housing.

[0015] According to another exemplary embodiment of the present invention, a connector includes two electrically transmitting components, two electrically conductive terminals, and two fastening assemblies, the two electrically conductive terminals being welded to the front ends of the two electrically transmitting components, respectively. The inner insulating housing has two insertion cavities, the insulating holder has two insulating sleeves, and the outer shield shell has two mounting ports. The two electrically transmitting components are inserted into the two insertion cavities, respectively, the two electrically conductive terminals are held by the two insulating sleeves, and the two fastening assemblies enter the inner insulating housing through the two mounting ports.

[0016] According to another exemplary embodiment of the present invention, the front ends of the two electrical transmission components are arranged side by side in the transverse direction of the outer shielding shell and at the same height in the height direction of the outer shielding shell, and the outlets of the two insertion cavities of the inner insulating housing are spaced apart in the height direction and at least partially overlap each other, so that the two electrical transmission components pulled out from the outlets of the two insertion cavities are spaced apart in the height direction and at least partially overlap each other.

[0017] According to another exemplary embodiment of the present invention, the connector further includes a low-voltage detection terminal fixed to the insulating holder and positioned between two insulating sleeves for mating with a mating detection terminal of a mating connector. After the connector is mated with the mating connector, the conductive terminal of the connector electrically connects to the mating terminal of the mating connector to connect a high-voltage load circuit. After the connector is mated with the mating connector, the low-voltage detection terminal mates with the mating detection terminal to connect a low-voltage control circuit, and the low-voltage control circuit controls the power source to supply power to the high-voltage load circuit.

[0018] According to another exemplary embodiment of the present invention, a circular groove is formed in the bottom wall of the outer shield shell, and the groove surrounds the bottom opening of the outer shield shell. When the connector is mated with a mating connector, the outer periphery of the mating shield shell of the mating connector is inserted into the groove of the outer shield shell and makes electrical contact with the outer shield shell.

[0019] According to another exemplary embodiment of the present invention, the connector further includes a seal ring mounted in a groove in the outer shield shell, wherein when the connector is mated with a mating connector, the seal ring is radially compressed between the outer shield shell and the mating shield shell to achieve a seal between the outer shield shell and the mating shield shell.

[0020] According to another exemplary embodiment of the present invention, the connector further comprises a sealing element inserted into the rear port of the outer shield shell to seal the rear port of the outer shield shell, the electrically transmitting component passing through the sealing element, and the sealing element being compressed between the outer insulating layer of the electrically transmitting component and the inner circumferential surface of the rear port of the outer shield shell.

[0021] According to another exemplary embodiment of the present invention, the connector further includes a rear end cover attached to the rear end of the outer shielding shell and having a through hole formed therein to allow the electrical transmission component to pass through, the rear end cover being used to fix the electrical transmission component to the rear end of the outer shielding shell and prevent the electrical transmission component from wobbling.

[0022] According to another exemplary embodiment of the present invention, 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 shield shell, which protrusion engages with a snap slot of the elastic buckle to fix the rear end cover to the rear end of the outer shield shell.

[0023] According to another exemplary embodiment of the present invention, the seal element has two ends on opposite sides in the longitudinal direction of the outer shield shell, and the two ends of the seal element are pressed against the rear end face and rear end cover of the inner insulating housing, respectively, to position the seal element at the rear port of the outer shield shell.

[0024] In the above-described exemplary embodiment of the present invention, the connector has a simple structure, a small volume, and can be miniaturized, and further, can simultaneously achieve functions such as waterproof sealing, electromagnetic shielding, high-voltage interlocking, and finger protection.

[0025] These and other features of the present invention will become more apparent from the detailed description of illustrative embodiments thereof, which proceeds with reference to the accompanying drawings. [Brief explanation of the drawings]

[0026] [Figure 1] 1 is an exemplary perspective view of a connector according to an exemplary embodiment of the present invention; [Figure 2] 1 is a longitudinal cross-sectional view of a connector according to an exemplary embodiment of the present invention, viewed from above. [Figure 3] 2 is a longitudinal cross-sectional view of a connector according to an exemplary embodiment of the present invention, viewed from below. [Figure 4]1 is an exemplary perspective view of an outer shield shell and an inner insulating housing of a connector according to an exemplary embodiment of the present invention; [Figure 5] 1 is an exemplary perspective view of a connector according to an exemplary embodiment of the present invention before one fastener assembly is pre-attached to the inner insulating housing. [Figure 6] 1 is a longitudinal cross-sectional view of a connector according to an exemplary embodiment of the present invention with a fastener assembly pre-attached to and retained within the inner insulating housing; [Figure 7] 1 is a longitudinal cross-sectional view of a connector according to an exemplary embodiment of the present invention showing a low voltage detection terminal. [Figure 8] 1 is an exemplary perspective view of a fastening assembly of a connector according to an exemplary embodiment of the present invention; [Figure 9] 1 is a cross-sectional view of a fastening assembly of a connector according to an exemplary embodiment of the present invention. [Figure 10] 1 is an exemplary exploded view of a fastening assembly of a connector according to an exemplary embodiment of the present invention. [Figure 11] 1 is an exemplary perspective view of two electrical transmission components of a connector according to an exemplary embodiment of the present invention. [Figure 12] 2 is a cross-sectional view of a fastening assembly, an electrical transmission component, and an electrically conductive terminal of a connector according to an exemplary embodiment of the present invention. [Figure 13] 2 is an exemplary exploded view of a fastening assembly, an electrical transmission component, and an electrically conductive terminal of a connector according to an exemplary embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0027] Exemplary embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. Like reference numerals refer to like elements. However, the present disclosure may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the disclosure to those skilled in the art.

[0028] In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. It will be apparent, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are schematically shown to simplify the drawings.

[0029] In accordance with the general concept of the present invention, there is provided a connector comprising: an outer shielding shell having front and rear ports on opposite longitudinal sides of the outer shielding shell, top and bottom openings on opposite height sides of the outer shielding shell, and a mounting port formed in the top wall; an inner insulating housing inserted into the outer shielding shell through the rear port of the outer shielding shell and having an insertion cavity communicating with the rear port, bottom opening, and mounting port of the outer shielding shell; an electrical transmission component inserted into the insertion cavity of the inner insulating housing and extending out the rear port of the outer shielding shell; conductive terminals welded to the front ends of the electrical transmission components for insertion into the insertion cavity for electrical contact with mating terminals of a mating connector; an insulating retainer attached to the bottom opening of the outer shielding shell for holding and positioning the conductive terminals; and a fastener assembly entering the inner insulating housing through the mounting port in the top wall of the outer shielding shell for fastening the conductive terminals to the mating terminals.

[0030] FIG. 1 shows an exemplary perspective view of a connector according to an exemplary embodiment of the present invention. FIG. 2 shows a longitudinal cross-sectional view of a connector according to an exemplary embodiment of the present invention, viewed from above. FIG. 3 shows a longitudinal cross-sectional view of a connector according to an exemplary embodiment of the present invention, viewed from below. FIG. 4 shows an exemplary perspective view of an outer shield shell 1 and an inner insulating housing 2 of a connector according to an exemplary embodiment of the present invention. FIG. 5 shows an exemplary perspective view of a connector according to an exemplary embodiment of the present invention before one fastener assembly 6 has been pre-attached to the inner insulating housing 2. FIG. 6 shows a longitudinal cross-sectional view of a connector according to an exemplary embodiment of the present invention with a fastener assembly 6 pre-attached to the inner insulating housing 2 and held in place within the inner insulating housing 2. FIG. 7 shows a longitudinal cross-sectional view of a connector according to an exemplary embodiment of the present invention, showing the low-voltage detection terminal 50. FIG. 8 shows an exemplary perspective view of a fastening assembly 6 of a connector according to an exemplary embodiment of the present invention. FIG. 9 shows a cross-sectional view of a fastening assembly 6 of a connector according to an exemplary embodiment of the present invention. FIG. 10 shows an exemplary exploded view of a fastening assembly 6 of a connector according to an exemplary embodiment of the present invention. FIG. 11 shows an exemplary perspective view of two electrical transmission components 3 of a connector according to an exemplary embodiment of the present invention. FIG. 12 shows a cross-sectional view of the fastening assembly 6, electrical transmission components 3, and conductive terminals 4 of a connector according to an exemplary embodiment of the present invention. FIG. 13 shows an exemplary exploded view of the fastening assembly 6, electrical transmission components 3, and conductive terminals 4 of a connector according to an exemplary embodiment of the present invention.

[0031] 1 to 13, a connector is disclosed in an exemplary embodiment of the present invention. The connector includes an outer shield shell 1, an inner insulating housing 2, an electrical transmission component 3, a conductive terminal 4, an insulating holder 5, and a fastening assembly 6. The outer shield shell 1 includes a front end wall and a rear port 101 on opposite sides in a longitudinal direction Y thereof, and a top wall and a bottom opening 102 on opposite sides in a height direction Z thereof. An attachment port 103 is formed in the top wall of the outer shield shell 1. The inner insulating housing 2 is inserted into the outer shield shell 1 from the rear port 101 of the outer shield shell 1, and has an insertion cavity 201 that communicates with the rear port 101, bottom opening 102, and attachment port 103 of the outer shield shell 1. The electrical transmission component 3 is inserted into the insertion cavity 201 of the inner insulating housing 2 and pulled out from the rear port 101 of the outer shielding shell 1. The conductive terminal 4 is soldered to the front end 3a of the electrical transmission component 3 inserted into the insertion cavity 201 for electrical contact with a mating terminal (not shown) of a mating connector (not shown). An insulating holder 5 is attached to the bottom opening 102 of the outer shielding shell 1 to hold and position the conductive terminal 4. A fastening assembly 6 enters the inner insulating housing 2 through a mounting port 103 in the top wall of the outer shielding shell 1 and is used to fasten the conductive terminal 4 to the mating terminal.

[0032] 1 to 13, in the illustrated embodiment, the electrical transmission component 3 includes 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 is exposed from the outer insulating layer 31, and the conductive terminal 4 is cylindrical and welded vertically to the front end 3a of the metal bar 30. In an exemplary embodiment of the present invention, the aforementioned metal bar 30 may be an aluminum bar, which can reduce manufacturing costs.

[0033] As shown in FIGS. 1 to 13 , 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. A socket 301 is formed on the front end portion 3 a 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 portion 3 a 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 a mating terminal.

[0034] 1 to 13, 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 shield shell 1 and the inner insulating housing 2. The insulating sleeve 52 is formed on the insulating bracket 51. The second cylindrical portion 42 of the conductive terminal 4 is inserted into and held in the insulating sleeve 52 of the insulating holder 5.

[0035] 1 to 13, in the illustrated embodiment, a first elastic buckle 5a and a second elastic buckle 5b are formed on the insulating bracket 51. The first elastic buckle 5a and the second elastic buckle 5b engage with the outer shield shell 1 and the inner insulating housing 2, respectively, to fix the insulating holder 5 to the outer shield shell 1 and the inner insulating housing 2.

[0036] As shown in FIGS. 1 to 13 , 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 for threaded connection with a nut in a mating terminal or a mating connector, securing the conductive terminal 4 to the mating terminal. The insulating end cap 61 is fitted to 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, and the insulating end cap 61 is positioned within the insulating sleeve 52. The gap between the insulating end cap 61 and the insulating sleeve 52 is smaller than a person's finger to prevent insertion of a finger. In an exemplary embodiment of the present invention, the insulating end cap 61 may be an injection-molded part formed directly on the end of the bolt 60 through an implant injection molding process.

[0037] 1 to 13 , in the illustrated embodiment, the fastening assembly 6 further includes a first insulator 62, a shield cap 63, and a second insulator 64. The first insulator 62 is formed on the head of the bolt 60. The shield cap 63 is used for attachment to the attachment port 103 of the outer shield shell 1. The second insulator 64 is formed inside the shield cap 63. The first insulator 62 and the second insulator 64 engage with each other to connect the shield cap 63 and the bolt 60 and electrically isolate the shield cap 63 from the bolt 60. In an exemplary embodiment of the present invention, the first insulator 62 may be an injection-molded part formed directly on the head of the bolt 60 through an insert injection molding process. The second insulator 64 may be an injection molded part formed directly inside the shielding cap 63 through an embedded injection molding process. The shielding cap 63 is suitable for covering the mounting port 103 and for making electrical contact with the outer peripheral surface of the peripheral wall of the mounting port 103 to prevent electromagnetic leakage.

[0038] 1 to 13, in the illustrated embodiment, a joint portion 63a suitable for engagement with an operating tool (not shown) engaged with the joint portion 63a is formed on the outside of the shield cap 63 so that the bolt 60 can be tightened or loosened through the operating tool. In the illustrated embodiment, the joint portion 63a is a recessed portion having a plum blossom-shaped cross section.

[0039] As shown in Figures 1 to 13, in the illustrated embodiment, the fastening assembly 6 further includes a seal ring 65 adapted to be fitted onto the second insulator 64 and to seal the mounting port 103 by being radially compressed between the second insulator 64 and the inner circumferential surface of the peripheral wall of the mounting port 103.

[0040] 1 to 13, in the illustrated embodiment, the fastening assembly 6 is pre-attached to the inner insulating housing 2, a limiting flange 12c is formed on the first insulator 62, and a limiting protrusion 2a is formed on the inner insulating housing 2. The limiting protrusion 2a is used to interfere with the limiting flange 12c and prevent the fastening assembly 6 pre-attached to the inner insulating housing 2 from coming off the inner insulating housing 2.

[0041] 1 to 13, in the illustrated embodiment, the connector includes two electrical transmitting parts 3, two conductive terminals 4, and two fastening assemblies 6. The two conductive terminals 4 are welded to the front ends 3a of the two electrical transmitting parts 3, respectively. The inner insulating housing 2 has two insertion cavities 201, the insulating holder 5 has two insulating sleeves 52, and the outer shield shell 1 has two mounting ports 103. The two electrical transmitting parts 3 are inserted into the two insertion cavities 201, respectively, the two conductive terminals 4 are held by the two insulating sleeves 52, respectively, and the two fastening assemblies 6 enter the inner insulating housing 2 through the two mounting ports 103.

[0042] 1 to 13, in the illustrated embodiment, the front ends 3a of the two electrical transmission components 3 are arranged side by side in the lateral direction X of the outer shield shell 1 and at the same height in the height direction Z of the outer shield shell 1. The outlets of the two insertion cavities 201 of the inner insulating housing 2 are spaced apart in the height direction Z and at least partially overlap each other, so that the two electrical transmission components 3 pulled out from the outlets of the two insertion cavities 201 are spaced apart in the height direction Z and at least partially overlap each other.

[0043] As shown in FIGS. 1 to 13, in the illustrated embodiment, the connector further includes a low-voltage detection terminal 50 fixed to the insulating holder 5 and positioned between two insulating sleeves 52 for mating with a mating detection terminal (not shown) of a mating connector. After the connector is mated with the mating connector, the conductive terminal 4 of the connector electrically connects to the mating terminal of the mating connector to connect a high-voltage load circuit (not shown). After the connector is mated with the mating connector, the low-voltage detection terminal 50 mates with the mating detection terminal to connect a low-voltage control circuit (not shown), which controls the power supply to supply power to the high-voltage load circuit. This improves safety during use.

[0044] 1 to 13, in the illustrated embodiment, a circular groove 104 is formed in the bottom wall of the outer shield shell 1, and the groove 104 surrounds a bottom opening 102 of the outer shield shell 1. When the connector is mated with a mating connector, the outer periphery of the mating shield shell (not shown) of the mating connector is inserted into the groove 104 of the outer shield shell 1 and comes into electrical contact with the outer shield shell 1.

[0045] 1 to 13, in the illustrated embodiment, the connector further includes a seal ring 7 attached to the groove 104 of the outer shield shell 1. When the connector is mated with a mating connector, the seal ring 7 is compressed radially between the outer shield shell 1 and the mating shield shell, thereby realizing a seal between the outer shield shell 1 and the mating shield shell.

[0046] 1 to 13, in the illustrated embodiment, the connector further includes a sealing element 8. The sealing element 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 electrical transmission part 3 passes through the sealing element 8, and the sealing element 8 is compressed between the outer insulating layer 31 of the electrical transmission part 3 and the inner circumferential surface of the rear port 101 of the outer shield shell 1.

[0047] 1 to 13, in the illustrated embodiment, the connector further includes a rear end cover 9. The rear end cover 9 is attached to the rear end of the outer shield shell 1, and has a through hole formed therein that allows the electrical transmission component 3 to pass through. The rear end cover 9 is used to fix the electrical transmission component 3 to the rear end of the outer shield shell 1 and prevent the electrical transmission component 3 from wobbling.

[0048] 1 to 13, 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 portion of the outer shield shell 1. The protrusion 1b engages with a snap slot 9a of the elastic buckle 9b to fix the rear end cover 9 to the rear end portion of the outer shield shell 1.

[0049] As shown in Figures 1 to 13, in the illustrated embodiment, the sealing element 8 has two ends on opposite sides in the longitudinal direction Y of the outer shield shell 1, and the two ends of the sealing element 8 are pressed against the rear end face of the inner insulating housing 2 and the rear end cover 9, respectively, to position the sealing element 8 at the rear port 101 of the outer shield shell 1.

[0050] Those skilled in the art will appreciate that the above embodiments are intended to be illustrative and not limiting. For example, many modifications may be made to the above embodiments by those skilled in the art, and various features described in different embodiments may be freely combined with each other without causing a discrepancy in structure or principle.

[0051] While several exemplary embodiments have been shown and described, it will be appreciated by those skilled in the art that various modifications or variations may be made to these embodiments without departing from the principles and spirit of the present disclosure, the scope of which is defined by the claims and their equivalents.

[0052] As used herein, elements referred to in the singular and preceded by the words "a" or "an" should be understood not to exclude a plurality of such elements or steps, unless expressly stated otherwise. Furthermore, references to "one embodiment" of the invention are not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the recited features. Also, unless expressly stated otherwise, embodiments "comprising" or "having" an element or elements having a particular characteristic may include additional such elements that do not have that characteristic.

Claims

1. A connector, An outer shield shell (1) comprising a front port and a rear port (101) on opposite sides in a longitudinal direction (Y) of the outer shield shell (1), a top wall and a bottom opening (102) on opposite sides in a height direction (Z) of the outer shield shell (1), and an attachment port (103) formed in the top wall; an inner insulating housing (2) inserted into the outer shield shell (1) through the rear port (101) of the outer shield shell (1) and having an insertion cavity (201) communicating with the rear port (101), the bottom opening (102), and the mounting port (103) of the outer shield shell (1); an electrical transmission component (3) inserted into the insertion cavity (201) of the inner insulating housing (2) and pulled out from the rear port (101) of the outer shield shell (1); a conductive terminal (4) welded to the front end (3a) of the electrical transmission part, which is inserted into the insertion cavity (201) for electrical contact with a mating terminal of a mating connector; an insulating holder (5) attached to the bottom opening (102) of the outer shield shell (1) to hold and position the conductive terminal (4); a fastening assembly (6) that enters the inner insulating housing (2) through the mounting port (103) in the top wall of the outer shield shell (1) to fasten the conductive terminal (4) to the mating terminal; A connector comprising:

2. 2. The connector of claim 1, wherein the electrical transmission component (3) comprises 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 is welded vertically to the front end (3a) of the metal bar (30).

3. The conductive terminal (4) is a first cylindrical portion (41) located at one end of the conductive terminal (4); a second cylindrical portion (42) located at the other end of the conductive terminal (4); a flange portion (43) located between the first cylindrical portion (41) and the second cylindrical portion (42); Equipped with 2. The connector of claim 1, wherein a socket (301) is formed on the front end (3 a) of the metal bar (30), the first cylindrical portion (41) is inserted into the socket (301) and welded, the flange portion (43) is welded to a surface of the front end (3 a) of the metal bar (30), and an end surface of the second cylindrical portion (42) is used for axial electrical contact with an end surface of the mating terminal.

4. The insulating holder (5) is an insulating bracket (51) fixed to the outer shield shell (1) and the inner insulating housing (2); An insulating sleeve (52) formed on the insulating bracket (51); Equipped with 4. The connector according to claim 3, wherein the second cylindrical portion (42) of the conductive terminal (4) is inserted into and held in the insulating sleeve (52) of the insulating holder (5).

5. 5. The connector according to claim 4, wherein 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) engage with the outer shield shell (1) and the inner insulating housing (2), respectively, to fix the insulating holder (5) to the outer shield shell (1) and the inner insulating housing (2).

6. The fastening assembly (6) comprises: a bolt (60) that passes through the conductive terminal (4) for threaded connection with a nut in the mating terminal or the mating connector and fastens the conductive terminal (4) to the mating terminal; an insulating end cap (61) fitted or formed on the end of the bolt (60) to prevent a person's fingers from touching the end of the bolt (60); Equipped with 5. The connector of claim 4, wherein 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 positioned within the insulating sleeve (52), and a gap between the insulating end cap (61) and the insulating sleeve (52) is smaller than a human finger to prevent insertion of a finger.

7. The fastening assembly (6) comprises: a first insulator (62) formed on the head of the bolt (60); a shield cap (63) for attaching the outer shield shell (1) to the attachment port (103); a second insulator (64) formed inside the shield cap (63); Furthermore, the first insulator (62) and the second insulator (64) engage with each other to join the shield cap (63) and the bolt (60) together and electrically isolate the shield cap (63) from the bolt (60); 7. The connector of claim 6, wherein the shielding cap (63) is adapted to cover the mounting port (103) and to form electrical contact with an outer peripheral surface of a peripheral wall of the mounting port (103) to prevent electromagnetic leakage.

8. 8. The connector of claim 7, wherein the joint portion (63a) suitable for engagement with an operating tool is formed on the outside of the shield cap (63) so that the bolt (60) can be tightened or loosened through an operating tool engaged with the joint portion (63a).

9. The fastening assembly (6) comprises:

8. The connector of claim 7, further comprising a seal ring (65) fitted to the second insulator (64) and adapted to seal the mounting port (103) by being radially compressed between an inner peripheral surface of the second insulator (64) and the peripheral wall of the mounting port (103).

10. The fastening assembly (6) is pre-attached to the inner insulating housing (2), a limiting flange (11a) is formed on the first insulator (62), and a limiting protrusion (2a) is formed on the inner insulating housing (2); 8. The connector according to claim 7, wherein the limiting protrusion (2a) is used to interfere with the limiting flange (11a) to prevent the fastening assembly (6) previously attached to the inner insulating housing (2) from coming off the inner insulating housing (2).

11. The connector comprises two electrical transmission parts (3), two conductive terminals (4), and two fastening assemblies (6), the two conductive terminals (4) being welded to the front ends (3a) of the two electrical transmission parts (3), respectively; The inner insulating housing (2) has two insertion cavities (201), the insulating holder (5) has two insulating sleeves (52), and the outer shield shell (1) has two mounting ports (103); 11. The connector according to claim 3, wherein the two electrical transmission components (3) are inserted into the two insertion cavities (201) respectively, the two conductive terminals (4) are held in the two insulating sleeves (52) respectively, and the two fastening assemblies (6) enter the inner insulating housing (2) through the two mounting ports (103).

12. The front ends (3a) of the two electric transmission components (3) are arranged side by side in the lateral direction (X) of the outer shield shell (1) and at the same height in the height direction (Z) of the outer shield shell (1), 12. The connector of claim 11, wherein the outlets of the two insertion cavities (201) of the inner insulating housing (2) are spaced apart in the height direction (Z) and at least partially overlap each other, so that the two electrical transmission components (3) pulled out from the outlets of the two insertion cavities (201) are spaced apart in the height direction (Z) and at least partially overlap each other.

13. The connector further includes a low-voltage detection terminal (50) fixed to the insulating holder (5) and positioned between the two insulating sleeves (52) to be mated with a mating detection terminal of the mating connector, After the connector is mated with the mating connector, the conductive terminals (4) of the connector are electrically connected to the mating terminals of the mating connector to connect a high-voltage load circuit; 12. The connector of claim 11, wherein after the connector is mated with the mating connector, the low-voltage detection terminal (50) mates with the mating detection terminal to connect a low-voltage control circuit, and the low-voltage control circuit controls a power source to supply power to the high-voltage load circuit.

14. a circular groove (104) is formed in the bottom wall of the outer shield shell (1), the groove (104) surrounding the bottom opening (102) of the outer shield shell (1); 2. The connector according to claim 1, wherein when the connector is mated with the mating connector, an outer periphery of the mating shield shell of the mating connector is inserted into the groove (104) of the outer shield shell (1) and is in electrical contact with the outer shield shell (1).

15. The outer shield shell (1) further includes a seal ring (7) attached to the groove (104), 15. The connector according to claim 14, wherein when the connector is mated with the mating connector, the seal ring (7) is radially compressed between the outer shield shell (1) and the mating shield shell, thereby realizing a seal between the outer shield shell (1) and the mating shield shell.

16. a sealing element (8) inserted into the rear port (101) of the outer shield shell (1) to seal the rear port (101); 3. The connector according to claim 2, wherein the electrical transmission part (3) passes through the sealing element (8), and the sealing element (8) is compressed between the outer insulating layer (31) of the electrical transmission part (3) and the inner peripheral surface of the rear port (101) of the outer shield shell (1).

17. The rear end cover (9) is attached to the rear end of the outer shield shell (1) and has a through hole formed therein to allow the electrical transmission component (3) to pass through.

17. The connector according to claim 16, wherein the rear end cover (9) is used to fix the electrical transmission part (3) to the rear end of the outer shield shell (1) to prevent the electrical transmission part (3) from wobbling.

18. 18. The connector according to claim 17, wherein 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 shield shell (1), and the protrusion (1b) engages with a snap slot (9a) of the elastic buckle (9b) to fix the rear end cover (9) to the rear end of the outer shield shell (1).

19. 18. The connector according to claim 17, wherein the sealing element (8) has two ends on opposite sides in the longitudinal direction (Y) of the outer shield shell (1), and the two ends of the sealing element (8) are pressed against a rear end surface of the inner insulating housing (2) and the rear end cover (9), respectively, thereby positioning the sealing element (8) at the rear port (101) of the outer shield shell (1).

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