Connection assembly, connector and connector assembly

Abstract

To provide a connection assembly, a connector and a connector assembly, in which a conductive plug arranged in a mounting hole of a conductive housing can achieve an electromagnetic shielding function, and an elastic sealing sleeve sleeved on the conductive plug can achieve a waterproof function by sealing the gap between the conductive plug and the inner wall of the mounting hole.SOLUTION: A connection assembly is used to connect a high-voltage cable (1) and includes: a threaded fastener (30, 50) for fixedly connecting the high-voltage cable (1) to a mating connection part, the threaded fastener including an insulation member (50); and a conductive plug (60) connected with the insulation member (50) to allow the threaded fastener (30, 50) to be tightened or loosened by rotating the conductive plug (60).SELECTED DRAWING: Figure 1

Description

Technical Field

[0005]

[0001] (Cross - reference to related applications) This application claims the benefit of Chinese Patent Application No. 2021108208718, filed with the China National Intellectual Property Administration on July 20, 2021, the entire disclosure of which is incorporated herein by reference.

[0002] The present invention relates to a connection assembly, a connector including the connection assembly, and a connector assembly including the connector.

Background Art

[0003] In the prior art, in order to achieve a rapid electrical connection of a high - voltage electrical circuit in an automobile, a connector capable of rapidly realizing an electrical connection between a high - voltage cable and a bus bar is required. The connector includes terminals electrically connected to the high - voltage cable and the bus bar inside. Generally, the terminals are connected to the high - voltage cable via bolts. To operate the bolts, it is necessary to form mounting holes in the housing of the connector so that an external tool can enter the housing through the mounting holes to operate the bolts.

[0004] However, in the prior art, usually, the mounting holes are not blocked and are in an open state, so the connector does not have a waterproof function and an electromagnetic wave shielding function. Also, in order to realize the waterproof function and the electromagnetic wave shielding function, it is necessary to provide a metal cover on the housing to block and seal the mounting holes. However, this causes complication of the housing and increases the manufacturing cost and operation difficulty of the connector.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The present invention is made to overcome or mitigate at least one of the above - mentioned drawbacks.

Means for Solving the Problems

[0006] According to one aspect of the present invention, a connection assembly for connecting high-voltage cables is provided. The connection assembly comprises a threaded fastener for permanently connecting high-voltage cables to a mating connection, including an insulating member, and a conductive plug connected to the insulating member, the threaded fastener being tightened or loosened by rotating the conductive plug.

[0007] According to an exemplary embodiment of the present invention, the screw fastener includes a conductive screw connector, and an insulating member engages between the conductive plug and the screw connector to electrically insulate the conductive plug from the screw connector.

[0008] According to another exemplary embodiment of the present invention, the insulating member comprises an outer insulating portion positioned around the conductive plug, which increases the creepage distance between the screw-type connector and the conductive plug.

[0009] According to another exemplary embodiment of the present invention, the insulating member is formed simultaneously on the screw connector and the conductive plug, or the insulating member is formed separately from the screw connector and the conductive plug and a sleeve is formed on the screw connector and the conductive plug, or the insulating member is formed on one of the screw connector and the conductive plug and a sleeve is formed on the other of the screw connector and the conductive plug.

[0010] According to another exemplary embodiment of the present invention, the insulating member and the conductive plug are molded separately, and a sleeve is formed on the conductive plug; an annular groove is formed on one of the inner wall of the insulating member and the outer wall of the conductive plug, and an annular projection suitable for engagement with the annular groove is formed on the other.

[0011] According to another exemplary embodiment of the present invention, the insulating member further comprises an intermediate protrusion, and the outer insulating portion surrounds and is connected to the intermediate protrusion, a conductive plug engages between the outer insulating portion and the intermediate protrusion of the insulating member to prevent the conductive plug from rotating relative to the insulating member, and a screw-type connector engages with the intermediate protrusion of the insulating member to prevent the screw-type connector from rotating relative to the insulating member.

[0012] According to another exemplary embodiment of the present invention, the threaded connector is a bolt, the head of which is engaged with an insulating member, or the threaded connector is a nut, the nut is engaged with an insulating member.

[0013] According to another exemplary embodiment of the present invention, the threaded connecting member is a bolt, the head of which is engaged within an insulating member, and the connecting assembly further includes an insulating cap with a sleeve formed on the end of the bolt opposite the head to prevent the end of the bolt from being touched by a finger.

[0014] According to another exemplary embodiment of the present invention, a blind slot hole is formed at the outer end of the conductive plug, and the blind slot hole is used to engage with an external tool for rotating the conductive plug.

[0015] According to another exemplary embodiment of the present invention, the connection assembly further comprises an elastic seal sleeve having a sleeve formed on the conductive plug in order to seal the gap between the conductive plug and the conductive housing.

[0016] According to another aspect of the present invention, a connector is provided comprising a conductive housing having mounting holes, an internal insulator mounted to the conductive housing, terminals provided on the internal insulator, a screw-type connector member provided on the internal insulator, and the connection assembly. The connection assembly enters the conductive housing through the mounting holes and connects to the screw-type connector member to electrically connect the terminals to a high-voltage cable.

[0017] According to an exemplary embodiment of the present invention, the conductive plug of the connection assembly is positioned in the mounting hole to close the mounting hole, and the elastic seal sleeve of the connection assembly has a sleeve formed on the conductive plug to seal the gap between the conductive plug and the conductive housing.

[0018] According to another exemplary embodiment of the present invention, the size of the gap between the conductive plug and the conductive housing is set to prevent electromagnetic waves from leaking out of the conductive housing through the gap.

[0019] According to another exemplary embodiment of the present invention, the elastic seal sleeve is an elastic conductive seal formed from an elastic conductive material, and the conductive plug is electrically connected to the conductive housing via the elastic seal sleeve.

[0020] According to another exemplary embodiment of the present invention, a slot is formed in the terminal, and a screw-type connector is positioned in the slot of the terminal to prevent the screw-type connector from rotating relative to the terminal.

[0021] According to another exemplary embodiment of the present invention, the conductive plug comprises a columnar body part, and the elastic seal sleeve comprises a cylindrical body part, wherein the cylindrical body part has a sleeve formed on the columnar body part and is radially compressed between the columnar body part of the conductive plug and the inner wall of the mounting hole to seal the gap between them.

[0022] According to another exemplary embodiment of the present invention, the conductive plug further comprises an annular brim portion (or collar portion or edge portion; brim part) formed at the outer end of a columnar body portion, and the elastic seal sleeve further comprises a radially extending annular lip portion formed at one end of a cylindrical body portion, the annular lip portion being compressed axially between the annular brim portion of the conductive plug and the outer surface of the conductive housing to seal the gap between them.

[0023] According to another aspect of the present invention, there is provided a connector assembly including the above connector, as well as a cable and a cable assembly including a cable terminal connected to the cable. The cable terminal is disposed in a conductive housing and is electrically connected to the terminal of the connector.

Advantages of the Invention

[0024] In the above exemplary embodiment according to the present invention, the conductive plug disposed in the mounting hole can realize an electromagnetic shielding function, and the elastic sealing sleeve formed on the conductive plug can seal the gap between the conductive plug and the inner wall of the mounting hole to realize a waterproof function.

Brief Description of the Drawings

[0025] The above and other features of the present invention will become more apparent by describing its exemplary embodiments in detail with reference to the accompanying drawings. [Figure 1] An exemplary perspective view of a connector according to an exemplary embodiment of the present invention is shown. [Figure 2] A cross-sectional view of the connector shown in FIG. 1 is shown. [Figure 3] An exemplary perspective view of a connector according to an exemplary embodiment of the present invention with the conductive housing removed is shown. [Figure 4] An exemplary perspective view of the connector shown in FIG. 3 as viewed from one direction with the internal insulator removed is shown. [Figure 5] An exemplary perspective view of the connector shown in FIG. 3 as viewed from another direction with the internal insulator removed is shown. [Figure 6] Cross-sectional views of the connectors shown in FIGS. 4 and 5 are shown. [Figure 7] An exploded schematic view of a connector according to an exemplary embodiment of the present invention is shown. [Figure 8] An assembly view of the connection assembly in the connector shown in FIG. 1 is shown. [Figure 9] A cross-sectional view of the connection assembly shown in FIG. 8 is shown. [Figure 10] Figure 8 shows an exploded perspective view of the connection assembly. [Modes for carrying out the invention]

[0026] Illustrative embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, where similar reference figures refer to similar elements. However, the present disclosure can be embodied in many different forms and should not be construed as being limited to the embodiments described herein. Rather, these embodiments are provided to make the present disclosure sufficient and complete and to fully convey the concepts of the present disclosure to those skilled in the art.

[0027] The following detailed description includes numerous specific details to provide a complete understanding of the disclosed embodiments for illustrative purposes. However, it will be apparent that one or more embodiments may be carried out without these specific details. In other examples, well-known structures and devices are shown schematicly for the sake of simplifying the drawings.

[0028] According to the general concept of the present invention, a connection assembly for connecting high-voltage cables is provided, the connection assembly comprising a screw fastener for permanently connecting high-voltage cables to a mating connection, including an insulating member, and a conductive plug connected to the insulating member, wherein the screw fastener can be tightened or loosened by rotating the conductive plug.

[0029] According to another general technical concept of the present invention, a connector is provided which comprises a conductive housing having mounting holes, an internal insulator installed in the conductive housing, terminals provided on the internal insulator, a mating screw type connector member disposed on the internal insulator, and a connection assembly which enters the conductive housing through the mounting holes and is connected to the mating screw type connector member for electrically connecting the terminals to a high-voltage cable.

[0030] Figure 1 is an exemplary perspective view of a connector according to an exemplary embodiment of the present invention. Figure 2 shows a cross-sectional view of the connector shown in Figure 1. Figure 3 is an exemplary perspective view of a connector according to an exemplary embodiment of the present invention with the conductive housing 100 removed. Figure 7 is an exploded schematic view of a connector according to an exemplary embodiment of the present invention.

[0031] As shown in Figures 1-3 and 7, in the illustrated embodiment, the connector mainly includes a conductive housing 100, an internal insulator 200, terminals 20, a screw-type connector 30, a matching screw-type connector 40, a conductive plug 60, an elastic seal sleeve 70, and an insulating member 50. The conductive housing 100 has mounting holes 101. The internal insulator 200 is attached to the conductive housing 100. The terminals 20 are provided on the internal insulator 200. The internal insulator 200 is used to hold the terminals 20 and to electrically insulate the terminals 20 from the conductive housing 100.

[0032] Figure 8 is an assembly diagram of the connection assembly in the connector shown in Figure 1, Figure 9 is a cross-sectional view of the connection assembly shown in Figure 8, and Figure 10 is an exploded perspective view of the connection assembly shown in Figure 8.

[0033] As shown in Figures 1-3 and 7-10, in the illustrated embodiment, a screw-type connector member 30, a conductive plug 60, and an insulating member 50 form a connection assembly. The connection assembly enters the conductive housing 100 through a mounting hole 101 in the conductive housing 100. The screw-type connector member 30 of the connection assembly is screwed (or threaded) with a matching screw-type connector member 40 to connect the terminal 20 to the cable terminal 10. In the illustrated embodiment, one end 11 of the cable terminal 10 is crimped to the conductor of the high-voltage cable 1, and the other end 12 is connected to one end 22 of the connector terminal 20. In this way, the connector terminal 20 is connected to the high-voltage cable 1. Although not shown, the connector also includes a shielding connector member installed in the conductive housing 100 to electrically connect the shielding layer of the high-voltage cable 1 to the conductive housing 100. For example, the shielding connector may be a conductive ring covered (or sheathed) on the shielding layer of the high-voltage cable 1, the conductive ring having a conductive spring, the conductive spring in contact with the inner wall surface of the conductive housing 100. If waterproofing is required, the connector may also include a sealing ring positioned between the conductive housing 100 and the high-voltage cable to seal the mating interface between them.

[0034] As shown in Figures 1-3 and 7-10, in the illustrated embodiment, in order to achieve an electromagnetic shielding function, the conductive plug 60 is placed in the mounting hole 101 and closes the mounting hole 101. The elastic seal sleeve 70 forms a sleeve on the conductive plug 60 and seals the gap between the conductive plug 60 and the conductive housing 100, thereby achieving a waterproof function. Note that if there is no requirement for waterproofing in the installation environment, the elastic seal sleeve 70 can be omitted. The insulating member 50 engages between the conductive plug 60 and the screw-type connector member 30, electrically insulating the conductive plug 60 from the screw-type connector member 30, and the screw-type connector members 30 and 40 can be tightened and loosened by rotating the conductive plug 60. In the illustrated embodiment, the screw-type connector member 30 is conductive, and the insulating member 50 can prevent the worker from coming into contact with the conductive screw-type connector member 30.

[0035] As shown in Figures 1-3 and 7, in the illustrated embodiment, in order to achieve an electromagnetic shielding function, the size of the gap between the conductive plug 60 and the conductive housing 100 is set to prevent electromagnetic waves from leaking out of the conductive housing 100 through the gap. The size of the gap between the conductive plug 60 and the conductive housing 100 includes two dimensions: one is the width of the gap, and the other is the length of the gap. These two dimensions can be set reasonably according to the wavelength of the electromagnetic waves.

[0036] As shown in Figures 1-3 and Figure 7, in the illustrated embodiments, the elastic seal sleeve 70 may be formed from a common elastic material such as rubber. The elastic seal sleeve 70 typically has only a waterproof function and no conductive function. However, the present invention is not limited thereto. For example, in an exemplary embodiment of the present invention, the elastic seal sleeve 70 may be an elastic conductive seal formed from an elastic conductive material, thereby enabling the conductive plug 60 to be electrically connected to the conductive housing 100 via the elastic seal sleeve 70. This further improves the electromagnetic shielding effect of the connector.

[0037] As shown in Figures 2 and 8 to 10, in exemplary embodiments of the present invention, the insulating member 50 can be simultaneously molded onto the screw-type connector member 30 and the conductive plug 60 by injection molding. In this way, the insulating member 50 can be simultaneously engaged with the screw-type connector member 30 and the conductive plug 60. However, the present invention is not limited thereto. For example, in another exemplary embodiment of the present invention, the insulating member 50 may be formed separately from the screw-type connector member 30 and the conductive plug 60, and sleeves may be formed on the screw-type connector member 30 and the conductive plug 60. Alternatively, in another exemplary embodiment of the present invention, the insulating member 50 may be formed on one of the screw-type connector member 30 and the conductive plug 60, and covered on the other of the screw-type connector member 30 and the conductive plug 60.

[0038] As shown in Figures 2 and 8 to 10, in the illustrated embodiment, the insulating member 50 is formed separately from the conductive plug 60 and covers the conductive plug 60. An annular groove 61a is formed on one of the inner walls of the insulating member 50 and the outer wall of the conductive plug 60, and an annular projection suitable for engagement with the annular groove 61a is formed on the other. When the insulating member 50 forms a sleeve on the conductive plug 60, the annular groove 61a engages with the annular projection, preventing the conductive plug 60 from separating axially from the insulating member 50.

[0039] As shown in Figures 2 and 8 to 10, in the illustrated embodiment, the insulating member 50 includes an outer insulating portion 51 and an intermediate protrusion 52. The intermediate protrusion 52 is located within the outer insulating portion 51 and is connected to the outer insulating portion 51. The conductive plug 60 is engaged between the outer insulating portion 51 and the intermediate protrusion 52 of the insulating member 50, so that the conductive plug 60 cannot rotate relative to the insulating member 50. In addition, the screw-type connecting member 30 is engaged with the intermediate protrusion 52 of the insulating member 50 so that it cannot rotate relative to the insulating member 50.

[0040] As shown in Figures 2 and 8 to 10, in the illustrated embodiment, the insulating member 50 is molded on the screw-type connector member 30. Together, the insulating member 50 and the screw-type connector member 30 form a screw-type fastener.

[0041] As shown in Figures 2 and 8 to 10, in the illustrated embodiment, the screw-type connecting member 30 is a bolt, and the screw-type connecting member 40 is a nut, with the bolt having a male thread 33 connected to the nut thread. The head 31 of the bolt engages with the insulating member 50, and the nut is fixed to the terminal 20. The bolt passes through the cable terminal 10 and the connector terminal 20 and is screwed into the nut, connecting the cable terminal 10 and the connector terminal 20 to each other. In the illustrated embodiment, the bolt can be rotated by rotating the conductive plug 60, thereby tightening and loosening the bolt.

[0042] However, the present invention is not limited to the illustrated embodiments. For example, in another exemplary embodiment of the present invention, the screw-type connector member 30 is a nut, and the mating screw-type connector member 40 is a bolt. The nut engages with the insulating member 50, and the head 31 of the bolt is fixed to the terminal 20. The cable terminal 10 and the connector terminal 20 are connected to each other by the bolt passing through the cable terminal 10 and the connector terminal 20 and screwing into the nut.

[0043] As shown in Figures 2 and 8-10, in the illustrated embodiment, the connector also includes an insulating cap 90 with a sleeve formed on the end 32 of the bolt 30 opposite the head 31, so that the worker does not come into contact with the end 32 of the bolt 30. In this way, electric shock accidents can be prevented.

[0044] As shown in Figures 2 and 8 to 10, in the illustrated embodiment, a blind slot hole 63 is formed at the outer end of the conductive plug 60 to engage with an external tool (not shown), allowing the conductive plug 60 to be rotated by the external tool. In this way, the screw-type connecting member 30 can be tightened and loosened.

[0045] As shown in Figures 1-3 and 8-10, in the illustrated embodiment, the conductive plug 60 includes a columnar body portion 61, and the elastic seal sleeve 70 includes a cylindrical body portion 71. The cylindrical body portion 71 covers the columnar body portion 61 and is compressed radially between the columnar body portion 61 of the conductive plug 60 and the inner wall of the mounting hole 101 to seal the gap between them.

[0046] As shown in Figures 1-3 and 8-10, in the illustrated embodiment, the conductive plug 60 also includes an annular brim portion 62 formed at the outer end of the columnar body portion 61, and the elastic seal sleeve 70 also includes a radially extending annular lip portion 72 formed at one end of the cylindrical body portion 71. The annular lip portion 72 of the elastic seal sleeve 70 is compressed axially between the annular brim portion 62 of the conductive plug 60 and the outer surface of the conductive housing 100 to seal the gap between them.

[0047] As shown in Figures 1-3 and 8-10, in the illustrated embodiment, the connector also includes an elastic seal ring 80 positioned at the bottom of the conductive housing 100. When the conductive housing 100 of the connector is installed in the housing of the electrical equipment, the elastic seal ring 80 is compressed between the conductive housing 100 of the connector and the housing of the electrical equipment to seal the mating interface between them.

[0048] Figure 4 shows a schematic three-dimensional view of the connector shown in Figure 3, viewed from one direction. Figure 5 is a schematic three-dimensional view of the connector shown in Figure 3, viewed from a different direction, with the internal insulator 200 removed. Figure 6 is a cross-sectional view of the connector shown in Figures 4 and 5.

[0049] As shown in Figures 4 to 6, in the illustrated embodiment, the connector terminal 20 is suitable for electrical connection to a busbar (not shown). One end 11 of the cable terminal 10 is cylindrical and crimped to the high-voltage cable 1. The other end 12 of the cable terminal 10 is electrically connected to one end 22 of the connector terminal 20. The other end 21 of the connector terminal 20 is plate-shaped and suitable for connection to a busbar. In the illustrated embodiment, the other end 12 of the cable terminal 10 and the one end 22 of the connector terminal 20 are stacked together and can be connected to each other via a screw-type connecting member 30 and a matching screw-type connecting member 40.

[0050] As shown in Figures 4 to 6, in the illustrated embodiment, a slot is formed at one end 22 of the terminal 20 of the connector, and a screw-type connecting member 40 is placed in the slot at one end 22 of the terminal 20, so that the screw-type connecting member 40 cannot rotate relative to the terminal 20.

[0051] As shown in Figures 1 to 3, a connector assembly is also disclosed in an exemplary embodiment of the present invention. The connector assembly mainly comprises the connector and cable assembly. The cable assembly includes a high-voltage cable 1 and cable terminals 10 electrically connected to the conductors of the high-voltage cable 1. The terminals 20 of the connector are electrically connected to the cable terminals 10.

[0052] As shown in Figures 2 and 8-10, exemplary embodiments of the present invention also disclose a connection assembly for connecting a high-voltage cable 1. The connection assembly mainly comprises screw fasteners 30, 50 and a conductive plug 60. The screw fasteners 30, 50 are used to permanently connect the high-voltage cable 1 to a mating connection (e.g., terminal 20 in the figure). The screw fasteners 30, 50 include an insulating member 50 and a conductive screw fastener 30. The conductive plug 60 is connected to the insulating member 50, and the screw fasteners 30, 50 can be tightened or loosened by rotating the conductive plug 50. In the illustrated embodiment, the insulating member 50 engages between the conductive plug 60 and the screw fastener 30 and electrically insulates the conductive plug 60 from the screw fastener 30.

[0053] As shown in Figures 2 and 8 to 10, in the illustrated embodiment, the insulating member 50 includes a cylindrical outer insulating portion 51 which is positioned around the conductive plug 60 and covers the conductive plug 60, and is suitable for increasing the creepage distance between the screw-type connector member 30 and the conductive plug 60. In the illustrated embodiment, the outer insulating portion 51 also restricts the axial position of the elastic seal 70, preventing the elastic seal 70 from moving downward.

[0054] Those skilled in the art will understand that the above embodiments are illustrative and not restrictive. For example, those skilled in the art can make many modifications to the above embodiments and freely combine the various features described in different embodiments without contradicting their configuration or principles.

[0055] While several exemplary embodiments have been shown and described, it will be understood by those skilled in the art that various changes or modifications may be made in these embodiments without departing from the principles and spirit of the present disclosure, the extent of which is defined in the claims and its equivalent.

[0056] Where used herein, elements described in the singular and referred to using the terms "a" or "an" should be understood not to exclude the plural form of such element or step unless such exclusion is expressly stated. Furthermore, references to "one embodiment" of the invention are not intended to be construed as excluding the existence of additional embodiments that also incorporate the described features. Moreover, unless expressly stated otherwise, embodiments "comprising" or "having" elements or elements having a particular characteristic may include other such elements that do not possess that characteristic. [Explanation of Symbols]

[0057] 1… High-voltage cable 10… Cable terminals 20… Connector terminals 30… Screw-type fastener 31... Bolt head 32… Bolt end 40 ... Screw-type connecting component 50 ... Insulating material 51 ... Outer perimeter insulation 52 … Intermediate protrusion 60… Conductive plug 61 ... Columnar body section 61a ... Ring groove 62... Ring-shaped brim 63… Blind slot holes 70… Elastic seal sleeve 71 ... Cylindrical body section 72 … Annular lip section 80… Elastic seal ring 90… Insulating cap 100 ... Conductive housing 101 ... Mounting holes 200 ... Internal insulator

Claims

1. A screw-type fastener (30, 50) for fixedly connecting a high-voltage cable (1) including an insulating member (50) to a mating connection part, and A conductive plug (60) connected to the insulating member (50) Comprising A connection assembly for connecting a high-voltage cable (1), wherein by rotating the conductive plug (60), the screw-type fastener (30, 50) can be tightened or loosened.

2. The screw-type fastener (30, 50) includes a conductive screw-type connection member (30), The insulating member (50) engages between the conductive plug (60) and the screw-type connection member (30) to electrically insulate the conductive plug (60) from the screw-type connection member (30). The connection assembly according to claim 1.

3. The insulating member (50) is disposed around the conductive plug (60) and includes an outer peripheral insulating portion (51) that increases the creepage distance between the screw-type connection member (30) and the conductive plug (60). The connection assembly according to claim 2.

4. The insulating member (50) is formed simultaneously on the screw-type connection member (30) and the conductive plug (60), or The insulating member (50) is formed separately from the screw-type connection member (30) and the conductive plug (60), and sleeves are formed on the screw-type connection member (30) and the conductive plug (60), or The insulating member (50) is formed on one of the screw-type connection member (30) and the conductive plug (60), and a sleeve is formed on the other of the screw-type connection member (30) and the conductive plug (60). The connection assembly according to claim 2.

5. The insulating member (50) and the conductive plug (60) are formed separately, and a sleeve is formed on the conductive plug (60). An annular groove (61a) is formed on one of the inner wall of the insulating member (50) and the outer wall of the conductive plug (60), and an annular protrusion suitable for engaging with the annular groove (61a) is formed on the other. The connection assembly according to claim 4.

6. The insulating member (50) further includes an intermediate convex portion (52), and the outer peripheral insulating portion (51) surrounds and is connected to the intermediate convex portion (52). The conductive plug (60) engages between the outer peripheral insulating portion (51) and the intermediate convex portion (52) of the insulating member (50) to prevent the conductive plug (60) from rotating with respect to the insulating member (50). The screw-type connecting member (30) engages with the intermediate convex portion (52) of the insulating member (50) to prevent the screw-type connecting member (30) from rotating with respect to the insulating member (50). The connection assembly according to claim 1. **Claim 7** The screw-type connecting member (30) is a bolt, and the head (31) of the bolt is engaged within the insulating member (50), or The screw-type connecting member (30) is a nut, and the nut is engaged within the insulating member (50). The connection assembly according to claim 1. **Claim 8** The screw-type connecting member (30) is a bolt, and the head (31) of the bolt is engaged within the insulating member (50), and The connection assembly further includes an insulating cap (90) having a sleeve formed at an end portion (32) of the bolt on a side opposite to the head (31) to prevent the end portion (32) of the bolt from being contacted by a finger. The connection assembly according to claim 7. **Claim 9** A blind slot hole (63) is formed at an outer end portion of the conductive plug (60), and the blind slot hole (63) is used to engage with an external tool for rotationally driving the conductive plug (60). The connection assembly according to claim 1. **Claim 10** An elastic seal sleeve (70) having a sleeve formed on the conductive plug (60) to seal a gap between the conductive plug (60) and the conductive housing (100) is further provided. The connection assembly according to any one of claims 1 to 9. **Claim 11** A conductive housing (100) having a mounting hole (101), An internal insulator (200) attached to the conductive housing (100), A terminal (20) provided on the internal insulator (200), A mating screw-type connecting member (40) provided on the internal insulator (200), and The connection assembly according to claim 1 is provided, The connection assembly enters the conductive housing (100) through the mounting hole (101) and is connected to the mating screw-type connecting member (40) to electrically connect the terminal (20) to a high-voltage cable (1). A connector. **Claim 12** The conductive plug (60) of the connection assembly is disposed in the mounting hole (101) to close the mounting hole (101), The elastic seal sleeve (70) of the connection assembly has a sleeve formed on the conductive plug (60) to seal a gap between the conductive plug (60) and the conductive housing (100). The connector according to claim 11.

13. The size of the gap between the conductive plug (60) and the conductive housing (100) is set to prevent electromagnetic waves from leaking outside the conductive housing (100) through the gap. The connector according to claim 12.

14. The elastic seal sleeve (70) is an elastic conductive seal formed of an elastic conductive material, and the conductive plug (60) is electrically connected to the conductive housing (100) through the elastic seal sleeve (70). The connector according to claim 12.

15. A slot is formed in the terminal (20), and the mating screw type connection member (40) is disposed in the slot of the terminal (20) to prevent the mating screw type connection member (40) from rotating with respect to the terminal (20). The connector according to claim 11.

16. The conductive plug (60) includes a columnar body portion (61), and the elastic seal sleeve (70) includes a cylindrical body portion (71). The cylindrical body portion (71) has a sleeve formed on the columnar body portion (61), and is compressed in the radial direction between the columnar body portion (61) of the conductive plug (60) and the inner wall of the mounting hole (101) to seal the gap therebetween. The connector according to claim 11.

17. The conductive plug (60) further includes an annular brim portion (62) formed at an outer end of the columnar body portion (61), and the elastic seal sleeve (70) further includes an annular lip portion (72) extending in the radial direction formed at one end of the cylindrical body portion (71). The annular lip portion (72) is compressed axially between the annular brim portion (62) of the conductive plug (60) and the outer surface of the conductive housing (100) to seal the gap therebetween. The connector according to claim 16.

18. The connector according to claim 11, and A cable assembly including a cable (1) and a cable terminal (10) connected to the cable (1). Comprising The cable terminal (10) is disposed in the conductive housing (100) and is electrically connected to the terminal (20) of the connector, a connector assembly.

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