CN214542611U

CN214542611U - Coupler with improved wiring structure

Info

Publication number: CN214542611U
Application number: CN202120804343.9U
Authority: CN
Inventors: 黄普添; 陈昕; 梁艺华
Original assignee: Guangdong Huilaide Temperature Controller Co ltd
Current assignee: Guangdong Huilaide Temperature Controller Co ltd
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2021-10-29
Anticipated expiration: 2031-04-19

Abstract

A coupler with improved wiring structure comprises a coupling seat shell, a plurality of wiring terminal sheets connected with electric conductors are arranged on the coupling seat shell, the wiring terminal sheet is provided with wiring holes, the coupling seat shell is provided with nut placing grooves corresponding to the wiring holes and adapted to be accommodated by nuts, the bolt connected with the lead passes through the wiring hole to be screwed and matched with the threaded hole of the nut, so that the lead is fixedly connected with the wiring terminal plate, the coupler with the structure adopts the connection of the bolt and the nut so as to lock the lead on the wiring terminal plate, has simple structure and firm connection, is suitable for mass production, can prevent the lead from loosening and separating from the wiring terminal plate to cause the power failure of the coupler, or the wiring terminal plate and the lead are loosened and only small-area contact is reserved for electrifying, poor contact is easily caused, and the safety performance of the coupler is influenced due to the high temperature generated by large current at the contact point.

Description

Coupler with improved wiring structure

Technical Field

The utility model relates to a coupler field specifically is a improve wiring structure's coupler.

Background

The existing coupler comprises an upper coupling seat and a lower coupling seat, wherein the upper coupling seat and the lower coupling seat are respectively provided with a conductor which is mutually contacted and electrified during coupling, and the upper coupling seat and the lower coupling seat are respectively provided with a terminal strip connected with the conductor, when the conventional coupler is assembled, the conductor is connected with the terminal strip by adopting a plug spring terminal, but the connection mode of the structure is easy to loosen, when the coupler is applied to high-power equipment and needs to bear large current of 25A or more, when the plug spring terminal is loosened from the terminal strip, the contact area is reduced, the current at the contact position is increased, high temperature is easy to generate, and the safety performance of the coupler is influenced, so that a scheme for realizing electric firm connection under the use environment of large current is required to be provided for the coupler, but because the shells of the upper coupling seat and the lower coupling seat are both made of engineering plastics, therefore, it is impossible to simultaneously form a screw hole for a bolt connection in the injection molding process, and further improvement of the butt line structure is required.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned current problem, provide a simple structure, reasonable a improve wiring structure's coupler, its effect makes the wire firmly lock on binding post piece, can prevent that wire and binding post piece pine from taking off the separation.

The utility model provides an improve coupler of wiring structure, includes the coupling seat casing, install a plurality of and conductor connection's connection terminal piece on the coupling seat casing, the wiring hole has been seted up on the connection terminal piece, corresponds the nut standing groove that the wiring hole was provided with the adaptation nut and holds on the coupling seat casing, and the bolt that passes the wiring hole through being connected with the wire and screws up the cooperation with the screw hole of nut, makes wire and connection terminal piece fixed connection.

The utility model discloses can also adopt following technical measure to solve:

the nut is tightly fixed in the nut placing groove.

The bolt comprises a head and a screw rod part wound with a lead, and when the screw rod part penetrates through the wiring hole to be screwed with the threaded hole of the nut, the lead is compressed between the wiring terminal piece and the head.

The end of the lead is connected with an O-shaped terminal plate 41 or a U-shaped terminal plate, and the O-shaped terminal plate 41 or the U-shaped terminal plate is tightly pressed between the wiring terminal plate and the head after being penetrated through by a screw rod part.

The nut placing groove is provided with an avoiding blind hole corresponding to the threaded hole and communicated with the nut placing groove, and the avoiding blind hole is suitable for accommodating the bottom of the screw portion.

The nut mainly comprises a hexagon nut and a quadrangle nut.

The wiring terminal plate is mainly connected with an N-pole lead and an L-pole lead.

The coupling seat shell comprises a high-temperature-resistant plastic material and a ceramic material.

The bottom of the coupling seat shell is provided with a splicing cavity, an electric conductor is installed in the splicing cavity and comprises a plurality of conductive copper rings, and the conductive copper rings and the wiring terminal pieces are integrally formed.

The utility model has the advantages as follows:

the utility model relates to an improve coupler of wiring structure, a structure is simple, it is convenient to assemble, low in production cost, the coupler of this structure is on the basis that the casing adopted the plastics material, the mode that can adopt bolt and nut to be connected realizes locking the wire on binding post piece, moreover, the steam generator is simple in structure, firm in connection, be applicable to mass production, can prevent that wire and binding post piece pine from taking off the separation, cause the coupler outage, perhaps binding post piece and wire pine take off and only remain the small area contact circular telegram, cause contact failure problem and contact point because the heavy current produces the high temperature, influence the security performance of coupler.

Drawings

Fig. 1 is a schematic view of the exploded structure of the present invention.

Fig. 2 is a schematic sectional view of the present invention.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

As shown in fig. 1 and 2, a coupler with an improved wiring structure comprises a coupling seat shell 1, wherein a plurality of wiring terminal pieces 2 connected with electric conductors are installed on the coupling seat shell 1, wiring holes 21 are formed in the wiring terminal pieces 2, nut placing grooves 11 matched with and accommodated by nuts 3 are formed in the coupling seat shell 1 corresponding to the wiring holes 21, and the wires 4 are fixedly connected with the wiring terminal pieces 2 by screwing bolts 5 connected with the wires 4 through the wiring holes 21 and threaded holes 301 of the nuts 3;

the coupler of this structure adopts the basis of plastics material at the casing, can adopt 5 modes of being connected with nut 3 of bolt to realize locking wire 4 on terminal piece 2, moreover, the steam generator is simple in structure, firm in connection, and is suitable for mass production, can prevent that wire 4 and terminal piece 2 pine from taking off the separation, cause the coupler outage, perhaps terminal piece 2 and wire 4 pine take off and only remain the small area contact circular telegram, cause contact failure problem and contact point because the heavy current produces high temperature, influence the security performance of coupler.

Further, the nut 3 is tightly fixed in the nut placing groove 11, the shape of the nut placing groove 11 is the same as that of the nut 3, and the nut placing groove 11 and the nut 3 form an interference fit, when the nut 3 is assembled, a worker presses the nut 3 into the nut placing groove 11 through external force, other fixing structures are not needed, and the assembling is convenient and rapid.

Further, the bolt 5 includes a head portion 502 and a screw portion 501 wound with the lead wire 4, when the screw portion 501 passes through the wiring hole 21 and is screwed with the threaded hole 301 of the nut 3, the lead wire 4 is compressed between the wiring terminal plate 2 and the head portion 502, and the lead wire 4 and the bolt 5 may be connected in the following manner:

the insulating skin of the outer layer of the lead is peeled off, so that the copper wire inside is exposed and bent into a U shape and is hooked on the screw rod part 501.

When the wire 4 is assembled, the screw portion 501 is inserted into the wiring hole 21 in order, and the hollow portion in the O-shaped terminal piece 41 or the U-shaped terminal piece and the screw hole 301 of the nut 3 are tightened to press the O-shaped terminal piece 41 or the U-shaped terminal piece between the terminal piece 2 and the head portion 502.

Further, an avoidance blind hole 12 communicated with the nut placing groove 11 is arranged below the nut placing groove 11 corresponding to the threaded hole 301, and the avoidance blind hole 12 is suitable for accommodating the bottom of the screw rod part 501; in the screwing process, the situation that the head 502 of the bolt 5 is not tightly pressed on the wiring terminal sheet 2 after the bottom of the bolt 5 abuts against the nut placing groove 11, and the lead 4 is connected insufficiently and firmly can be avoided.

Further, the nut 3 mainly includes a hexagon nut and a quadrangle nut, and the hexagon nut and the quadrangle nut can fix the nut 3 in the process of screwing the bolt 5, and cannot rotate along with the rotation of the bolt 5.

Further explain, the connection terminal piece 2 is mainly connected with the N pole wire and the L pole wire, and the connection terminal piece 2 connected with the N pole wire and the L pole wire can pass through larger current, so the utility model discloses a wiring structure is needed to adopt very much.

Further, the coupling seat housing 1 includes a high temperature resistant plastic material and a ceramic material, and the coupling seat housing 1 is made of a plastic material according to a conventional technology in the industry.

Further, the bottom of the coupling seat housing 1 is provided with an insertion cavity 10, an electric conductor is installed in the insertion cavity 101, the electric conductor includes a plurality of conductive copper rings 6, and the conductive copper rings 6 and the terminal piece 2 are integrally formed.

The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, but rather that various changes and modifications may be made without departing from the spirit and scope of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. The utility model provides an improve coupler of wiring structure, includes the coupling seat casing, install a plurality of and conductor connection's connection terminal piece on the coupling seat casing, its characterized in that: the wiring hole has been seted up on the binding post piece, corresponds the nut standing groove that the wiring hole was provided with the adaptation nut and holds on the coupling seat casing, passes the screw hole of wiring hole and nut through the bolt that is connected with the wire and screws up the cooperation, makes wire and binding post piece fixed connection.

2. The coupler of claim 1, wherein: the nut is tightly fixed in the nut placing groove.

3. The coupler of claim 1, wherein: the bolt comprises a head and a screw rod part wound with a lead, and when the screw rod part penetrates through the wiring hole to be screwed with the threaded hole of the nut, the lead is compressed between the wiring terminal piece and the head.

4. A coupler having an improved wiring structure according to claim 3, wherein: the end of the lead is connected with an O-shaped terminal plate 41 or a U-shaped terminal plate, and the O-shaped terminal plate 41 or the U-shaped terminal plate is tightly pressed between the wiring terminal plate and the head after being penetrated through by a screw rod part.

5. A coupler having an improved wiring structure according to claim 3, wherein: the nut placing groove is provided with an avoiding blind hole corresponding to the threaded hole and communicated with the nut placing groove, and the avoiding blind hole is suitable for accommodating the bottom of the screw portion.

6. The coupler of claim 1, wherein: the nut mainly comprises a hexagon nut and a quadrangle nut.

7. The coupler of claim 1, wherein: the wiring terminal plate is mainly connected with an N-pole lead and an L-pole lead.

8. The coupler of claim 1, wherein: the coupling seat shell comprises a high-temperature-resistant plastic material and a ceramic material.

9. The coupler of claim 1, wherein: the bottom of the coupling seat shell is provided with a splicing cavity, an electric conductor is installed in the splicing cavity and comprises a plurality of conductive copper rings, and the conductive copper rings and the wiring terminal pieces are integrally formed.