A cable connector

Abstract

The present invention relates to the technical field of cable connectors for electric cabinets, and specifically to a cable connector, comprising a terminal, a terminal, a locking nut and an insulating sheath. The terminal is arranged horizontally, one end of the terminal is fixedly connected to the terminal of a high-voltage switch cabinet, and the other end is provided with a clamping groove, the bottom of the clamping groove is a cylindrical contact cavity, the outer side surface of the clamping groove is provided with an external thread, the terminal is provided with a cylindrical contact rod, the lower end is used to fix the connection cable conductor, and the top end is provided with a hanging terminal, the contact rod is coaxially placed in the contact cavity and tightly attached to it, the locking nut is threadedly connected to the terminal, the hanging terminal can make the terminal hang on the terminal, and the insulating sheath is sleeved on the terminal and the terminal. The beneficial effects of the present invention are: large contact area, high current capacity, and not easy to produce poor contact, can effectively avoid the problem of heating of the connector head caused by poor contact between the terminal and the terminal of the high-voltage switch cabinet, and the structure is simple and easy to install.

Description

Technical Field

[0001] The invention relates to the technical field of electric cabinet cable connectors, in particular to a cable connector. Background Art

[0002] At present, the cable connector structure of the closed high-voltage switch cabinet is as follows: the cable connector includes a connecting bolt, one end of the connecting bolt is connected to the high-voltage switch cabinet terminal, and the other end passes through the mounting hole on the conventional terminal, and then the nut is threadedly connected to the connecting bolt to press the terminal on the high-voltage switch cabinet terminal, so as to realize the conductive connection between the high-voltage switch cabinet terminal and the terminal, and then the external cable is connected through the terminal. This structure has the following problems: only relying on the contact between the terminal and the high-voltage switch cabinet terminal for conductive connection, the conductive contact surface is actually only a circular ring, the contact area is small, and the current capacity is small; and there is a gap between the mounting hole of the terminal and the connecting bolt, and the terminal is prone to tilt when the terminal is subjected to the tension of the external cable, so that the surface contact between the terminal and the high-voltage switch cabinet terminal becomes a line contact, resulting in poor contact, and then causing a sharp reduction in the contact area and current capacity, which is easy to cause heating of the connection part, causing aging of the insulation layer, and reducing the service life; moreover, this connection structure is easy to loosen after long-term use or vibration, so that the terminal and the high-voltage switch cabinet terminal are not in contact or in poor contact. Summary of the invention

[0003] In order to overcome the above deficiencies in the prior art, the task of the present invention is to provide a cable connector with a large flow area, a reliable connection and a long service life.

[0004] The task of the present invention is achieved through the following technical solutions:

[0005] A cable connector comprises a terminal, a wiring terminal, a locking nut and an insulating sheath. The terminal is arranged horizontally, one end of the terminal is fixedly conductively connected to the terminal of a high-voltage switch cabinet, and the other end is provided with a clamping groove running through the upper and lower sides thereof. The bottom of the clamping groove is a vertical cylindrical contact cavity, the left and right side walls of the clamping groove are elastic and the outer side surface is provided with an external thread, the upper part of the terminal is a cylindrical contact rod, and the lower end is used to fix the connecting cable conductor. The top of the contact rod is provided with a hanging end, and the contact rod can be coaxially placed in the contact cavity and tightly attached thereto, the locking nut can be threadedly connected with the external thread so as to close the notch of the clamping groove and enable the contact cavity to hold the contact rod tightly, the hanging end is exposed in the contact cavity and enables the wiring terminal to be hung on the terminal, and the insulating sheath is sleeved outside the terminal and the wiring terminal.

[0006] Preferably, the terminal post and the high-voltage switch cabinet terminal are an integrated structure or a split structure fixedly connected together.

[0007] Preferably, the terminal post and the terminal of the high-voltage switch cabinet are split structures fixedly connected together, the end of the terminal post is provided with a protruding bolt connector, the terminal of the high-voltage switch cabinet is provided with a screw hole, one end of the terminal post is threadedly fixedly connected to the terminal of the high-voltage switch cabinet through the bolt connector, and the end plane of the terminal post is in close contact with the end plane of the high-voltage switch cabinet terminal.

[0008] Preferably, a nut structure is fixedly provided on the terminal post.

[0009] Preferably, the inner cavity of the locking nut is a conical structure, so that the left and right side walls of the clamping groove will continuously shrink inwards when the locking nut is tightened on the terminal post.

[0010] Preferably, the insulating sheath is provided with an opening for installing the locking nut, and the opening is provided with an end cover for opening or closing the opening.

[0011] The beneficial effects of the cable connector of the present invention are as follows: the terminal and the terminal post are in surface contact by holding the contact rod through the contact cavity, and the contact cavity and the contact rod are both cylindrical structures, so the contact area is large, the current carrying capacity is high, and it is not easy to produce poor contact. It can effectively avoid the problem of heating of the connection part caused by poor contact between the terminal and the terminal of the high-voltage switch cabinet, and has a long service life; and it has a simple structure and is easy to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the cable connector of the present invention;

[0013] Figure 2 yes Figure 1 Schematic diagram of the decomposition structure;

[0014] Figure 3 1 is a reference schematic diagram of the use status of the cable connector of the present invention in an embodiment.

[0015] Among them, there are cable connector 1, terminal 11, bolt connector 111, clamping groove 112, left wall 1121, right wall 1122, contact cavity 113, external thread 114, nut structure 115, terminal 12, contact rod 121, crimping tube 122, hanging terminal 123, locking nut 13, insulating sheath 14, opening 141, end cover 142, high-voltage switch cabinet 2, terminal 21, screw hole 211, cable 3. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0017] like Figure 1-3 As shown, a cable connector 1 includes a terminal 11, a terminal 12, a locking nut 13 and an insulating sheath 14. The terminal 11 is arranged horizontally, and one end of the terminal 11 is provided with a protruding bolt connector 111 for fixing the terminal 21 of the high-voltage switch cabinet 2 for conductive connection, and the other end is provided with a clamping groove 112 running through the upper and lower sides thereof, the bottom of the clamping groove 112 is a vertical cylindrical contact cavity 113, the left side wall 1121 and the right side wall 1122 of the clamping groove 112 are elastic and the outer side surface is provided with an external thread 114, the upper part of the terminal 12 is a cylindrical contact rod 121, and the lower end is a crimping tube 122 for fixing the wire of the connecting cable 3, the top of the contact rod 121 is provided with a hanging terminal 123, and the contact rod 1 The diameter of 21 is slightly larger than the inner diameter of the contact cavity 113, and the clamping groove 112 is elastic and can be slightly opened, so that the contact rod 121 can be coaxially placed in the contact cavity 113 and tightly attached thereto, the locking nut 13 can be threadedly connected with the external thread 114 to close the notch of the clamping groove 112 and enable the contact cavity 113 to hold the contact rod 121 tightly, the hanging end 123 is exposed in the contact cavity 113 and enables the terminal 12 to be hung on the terminal post 11, the insulating sheath 14 is sleeved on the outside of the terminal post 11 and the terminal 12, and an opening 141 for installing the locking nut 13 is provided on the insulating sheath 14, and an end cover 142 for opening or closing the opening is provided at the opening 141.

[0018] The terminal 21 of the high-voltage switch cabinet 2 is provided with a screw hole 211, and one end of the terminal 11 is threadedly fixedly connected to the terminal 21 of the high-voltage switch cabinet 2 through the bolt connector 111, and the end plane of the terminal 11 is tightly attached to the end plane of the terminal 21 of the high-voltage switch cabinet 2, and a nut structure 115 is fixed on the terminal 11.

[0019] The inner cavity of the locking nut 13 is a conical structure (not shown in the drawings), so that when the locking nut 13 is tightened on the terminal post 11, the left and right side walls of the clamping groove 112 will continuously shrink inward.

[0020] The beneficial effects of the cable connector of the present invention are as follows: the terminal block 12 and the terminal post 11 are in surface contact with each other by holding the contact rod 121 through the contact cavity 113, and the contact cavity 113 and the contact rod 121 are both cylindrical structures, so the contact area is large, the current carrying capacity is high, and it is not easy to produce poor contact. It can effectively avoid the problem of heating of the connection part caused by poor contact between the terminal block 12 and the terminal 21 of the high-voltage switch cabinet 2, and has a long service life; and it has a simple structure and is easy to install.

[0021] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A cable connector, characterized in that: It includes a terminal, a wiring terminal, a locking nut and an insulating sheath. The terminal is arranged horizontally, one end of the terminal is fixedly connected to the wiring terminal of the high-voltage switch cabinet, and the other end is provided with a clamping groove running through the upper and lower sides thereof. The bottom of the clamping groove is a vertical cylindrical contact cavity, the left and right side walls of the clamping groove are elastic and the outer side is provided with an external thread, the upper part of the terminal is a cylindrical contact rod, and the lower end is used to fix the connecting cable conductor. The top of the contact rod is provided with a hanging end, and the contact rod can be coaxially placed in the contact cavity and tightly attached to it, the locking nut can be threadedly connected with the external thread so as to close the notch of the clamping groove and make the contact cavity hold the contact rod tightly, the hanging end is exposed in the contact cavity and can make the wiring terminal hang on the terminal, and the insulating sheath is sleeved outside the terminal and the wiring terminal.

2. The cable connector according to claim 1, characterized in that: The terminal post and the high-voltage switch cabinet terminal are an integrated structure or a split structure fixedly connected together.

3. The cable connector according to claim 2, characterized in that: The terminal post and the terminal of the high-voltage switch cabinet are a split structure fixedly connected together, the end of the terminal post is provided with a protruding bolt connector, and the terminal of the high-voltage switch cabinet is provided with a screw hole. One end of the terminal post is threadedly fixedly connected to the terminal of the high-voltage switch cabinet through the bolt connector, and the end plane of the terminal post is in close contact with the end plane of the terminal of the high-voltage switch cabinet.

4. The cable connector according to claim 3, characterized in that: A nut structure is fixedly provided on the terminal post.

5. The cable connector according to claim 1, characterized in that: The inner cavity of the locking nut is a conical structure, so that when the locking nut is tightened on the terminal post, the left and right side walls of the clamping groove will continuously shrink inwards.

6. The cable connector according to claim 1, characterized in that: The insulating sheath is provided with an opening for installing the locking nut, and the opening is provided with an end cover for opening or closing the opening.

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