CN110492264A - A kind of cable connector - Google Patents

Abstract

The invention relates to the technical field of electric cabinet cable connectors, in particular to a cable connector, including a terminal, a terminal, a locking nut and an insulating sheath, the terminal is arranged horizontally, and one end of the terminal is fixedly connected to the terminal of a high-voltage switch cabinet , the other end is provided with a clamping groove, the bottom of the clamping groove is a cylindrical contact cavity, the outer surface of the clamping groove is provided with external threads, the terminal is provided with a cylindrical contact rod, the lower end is used to fix the cable conductor, and the top is provided with a hook The terminal, the contact rod is coaxially placed in the contact cavity and closely attached to it, the lock nut is threadedly connected to the terminal, the hook terminal can make the terminal hang on the terminal, and the insulating sheath is set on the terminal. The beneficial effects of the present invention are: the contact area is large, the overcurrent capacity is high, and the situation of poor contact is not easy to occur, and it can effectively avoid the poor contact between the terminal and the terminal of the high-voltage switch cabinet. There is no heat problem in the connection head, and the structure is simple and the installation is convenient.

Description

A cable connector

technical field

The invention relates to the technical field of electric cabinet cable connectors, in particular to a cable connector.

Background technique

At present, the structure of the cable connector of the closed high-voltage switchgear is as follows: the cable connector includes a connecting bolt, one end of the connecting bolt is connected to the terminal of the high-voltage switchgear, the other end passes through the mounting hole on the conventional terminal, and then through the nut and The connecting bolts are threaded to press the terminal on the terminal of the high-voltage switchgear to realize the conductive connection between the terminal of the high-voltage switchgear and the terminal, and then connect the external cable through the terminal. This structure has the following problems: it only relies on the contact between the terminal and the terminal of the high-voltage switchgear for conductive connection, the conductive contact surface is actually only a ring, the contact area is small, and the overcurrent capacity is small; There are gaps in the bolts, and the terminal is prone to tilt under the tension of the external cable, so that the surface contact between the terminal and the terminal of the high-voltage switchgear becomes a line contact, resulting in poor contact, which in turn leads to a sharp reduction in the contact area and overcurrent capacity , it is easy to cause the connection part to heat up, cause the insulation layer to age, and reduce the service life; moreover, this connection structure is easy to loosen after long-term use or vibration, so that there is no contact or poor contact between the terminal and the terminal of the high-voltage switch cabinet. .

Contents of the invention

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

The task of the present invention is realized through the following technical solutions:

A cable connector, including a terminal, a terminal, a locking nut and an insulating sheath, the terminal is arranged horizontally, one end of the terminal is fixed and electrically connected to the terminal of a high-voltage switch cabinet, and the other end is provided with two The clamping groove on the side, 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 surface is provided with external threads, the upper part of the terminal is a cylindrical contact rod, and the lower end is used to fix Connect the cable wires, the top of the contact rod is provided with a hook end, the contact rod can be coaxially placed in the contact cavity and closely attached to it, and the locking nut can be threaded with the external thread to close the clamp The notch of the groove and make the contact cavity hold the contact rod tightly, the hooking end is exposed in the contact cavity and can make the terminal hang on the terminal, and the insulating sheath is set on the terminal and the terminal outside the terminal.

Preferably, the terminal and the terminal of the high-voltage switch cabinet are of an integral structure or of a split structure fixedly connected together.

Preferably, the terminal and the terminal of the high-voltage switch cabinet are a split structure that is fixedly connected together, the end of the terminal is provided with a protruding bolt connector, the terminal of the high-voltage switch cabinet is provided with a screw hole, and the terminal of the terminal is provided with a screw hole. One end of the post is threaded and fixedly connected to the high-voltage switch cabinet terminal through the bolt connection head, and the end plane of the terminal post is in close contact with the end plane of the high-voltage switch cabinet terminal.

Preferably, a nut structure is fixed on the terminal.

Preferably, the inner cavity of the locking nut is a tapered structure, so that the left and right side walls of the clamping groove will continuously shrink inward when the locking nut is tightened on the terminal.

Preferably, the insulating sheath is provided with an opening for installing the locking nut, and the opening is provided with an end cap for opening or closing the opening.

The beneficial effect of the cable connector of the present invention is that: the terminal and the terminal are in surface contact through the contact cavity holding the contact rod tightly, and the contact cavity and the contact rod are both cylindrical structures, so the contact area is large, the flow capacity is high, and It is not easy to cause poor contact, can effectively avoid the heating problem 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 the structure is simple and the installation is convenient.

Description of drawings

Fig. 1 is a schematic structural view of a cable connector of the present invention;

Fig. 2 is a schematic diagram of an exploded structure of Fig. 1;

Fig. 3 is a reference schematic diagram of the use status of the cable connector of the present invention in the embodiment.

Among them, cable connector 1, terminal post 11, bolt connector 111, clamp groove 112, left side wall 1121, right side wall 1122, contact cavity 113, external thread 114, nut structure 115, terminal 12, contact rod 121, Crimping tube 122 , articulated end 123 , locking nut 13 , insulating sheath 14 , opening 141 , end cap 142 , high-voltage switchgear 2 , terminal 21 , screw hole 211 , and cable 3 .

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be 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, not to limit the present invention.

As shown in Figure 1-3, 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 for The protruding bolt connector 111 is fixed and conductively connected to the terminal 21 of the high-voltage switchgear 2, and the other end is provided with a clamping groove 112 that runs through its upper and lower sides. 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 have elasticity and the outer 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 and connecting the wires of the cable 3 , the top of the contact rod 121 is provided with a articulated end 123, the diameter of the contact rod 121 is slightly larger than the inner diameter of the contact cavity 113, and the clamping groove 112 has elasticity and can be slightly opened, so that the contact rod 121 can be coaxially placed in contact cavity 113 and close to it, the locking nut 13 can be threadedly connected with the external thread 114 so as to close the notch of the clamping groove 112 and make the contact cavity 113 hug the contact rod 121 tightly, the hook The terminal 123 is exposed in the contact cavity 113 and can hang the terminal 12 on the terminal 11. The insulating sheath 14 is sleeved outside the terminal 11 and the terminal 12. The insulating sheath 14 is provided with The opening 141 for installing the locking nut 13 is provided with an end cap 142 for opening or closing the opening.

The terminal 21 of the high-voltage switchgear 2 is provided with a screw hole 211, and one end of the terminal 11 is screwed and fixedly connected with the terminal 21 of the high-voltage switchgear 2 through the bolt connector 111, and the end of the terminal 11 is flat It is in close contact with 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.

The inner cavity of the locking nut 13 is a conical structure (not shown in the drawings), so that the left side of the clamping groove 112 will be moved when the locking nut 13 is tightened on the terminal post 11. , The right wall continues to shrink inward.

The beneficial effect of the cable connector of the present invention is that the terminal 12 and the terminal 11 are in surface contact through the contact chamber 113 holding the contact rod 121 tightly, and the contact chamber 113 and the contact rod 121 are both cylindrical structures, so the contact area is large, High over-current capacity, and not prone to poor contact, can effectively avoid the heating problem of the connection part caused by poor contact between the terminal 12 and the terminal 21 of the high-voltage switchgear 2, and has a long service life; and the structure is simple and the installation is convenient .

The above description is only a preferred embodiment of the present application and an illustration of the applied technical principle. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solution formed by the specific combination of the above-mentioned technical features, but should also cover the technical solution formed by the above-mentioned technical features without departing from the inventive concept. Other technical solutions formed by any combination of or equivalent features thereof. For example, a technical solution formed by replacing the above-mentioned features with technical features with similar functions disclosed in (but not limited to) this application.

Claims (6)

1. a kind of cable connector, which is characterized in that including binding post, connecting terminal, lock nut and insulating sheath, binding post Laterally setting, one end of binding post is fixed to be conductively connected high-tension switch cabinet terminals, and the other end is equipped with through its upper and lower two sides Clip slot, the bottom of clip slot are vertical cylindrical contact chamber, and the left and right side walls of clip slot have elasticity and lateral surface is equipped with outer spiral shell Line, the top of connecting terminal are cylindrical contact stick, and lower end is equipped with mounting for being fixedly connected with cable conductor, the top of contact rod End, contact rod, which can be coaxially placed in, to be contacted intracavitary and is close to therewith, and the lock nut can carry out spiral shell with the external screw thread So as to close the notch of clip slot and make to contact chamber holding contact rod, the mounting end is exposed to the contact chamber for line connection And connecting terminal can be made to hang on binding post, the insulating sheath is sheathed on outside the binding post and connecting terminal.

2. cable connector according to claim 1, which is characterized in that the binding post is one with high-tension switch cabinet terminals Body formula structure or split type structure to be fixed together.

3. cable connector according to claim 2, which is characterized in that the binding post and high-tension switch cabinet terminals are solid Surely the split type structure to link together, the wiring column end are equipped with the bolt connection protruded out, high-tension switch cabinet terminals Equipped with screw hole, one end of the binding post is bolted head and carries out the company of being screwed with high-tension switch cabinet terminals by described It connects, and the end plane of binding post is close to the end plane of high-tension switch cabinet terminals.

4. cable connector according to claim 3, which is characterized in that be fixed with nut structure on the binding post.

5. cable connector according to claim 1, which is characterized in that the inner cavity of the lock nut is pyramidal structure, from And make lock nut that can make the left and right side walls of the clip slot constantly to contract during tightening on the binding post.

6. cable connector according to claim 1, which is characterized in that the insulating sheath is equipped with for installing the locking The opening of nut, the opening are equipped with the end cap for being used to open or closing opening.