CN216624635U

CN216624635U - Wiring terminal structure of circuit protection device

Info

Publication number: CN216624635U
Application number: CN202123120154.9U
Authority: CN
Inventors: 蔡晓波; 蔡洧轩; 蔡伟鑫; 张雯婧
Original assignee: Shenzhen Nandou Environment Protection And Energy Saving Technology Co ltd
Current assignee: Shenzhen Nandou Environment Protection And Energy Saving Technology Co ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-05-27
Anticipated expiration: 2031-12-07

Abstract

The utility model discloses a wiring terminal structure of a circuit protection device, which belongs to the technical field of power equipment and comprises a wiring hole arranged on a main body, wherein a U-shaped wiring board used for connecting an exposed end of a cable is arranged below the wiring hole, a locking bolt is in threaded connection with the main body, a wiring pressing block matched with the U-shaped wiring board is connected to the front end of the locking bolt, the wiring pressing block is arranged in the wiring hole in a lifting manner under the driving of the locking bolt, a metal pressing sheet is arranged on the inner side of the U-shaped wiring board, and two sides of the metal pressing sheet are fixed on the side wall of the U-shaped wiring board.

Description

Wiring terminal structure of circuit protection device

Technical Field

The utility model relates to the technical field of power equipment, in particular to a wiring terminal structure of a circuit protection device.

Background

The existing electric power protection devices, such as a waterproof leakage protector, a circuit breaker, an air switch and the like, mostly lock the metal exposed end of the cable through bolts or bolts matched with locking plates, the connection structure adopting the mode has low strength and is easy to loosen, and the contact area with the metal exposed end of the cable is small, so that the resistance at the wiring position is easy to increase; in addition, the wiring hole is in an open state for a long time, and foreign matters easily enter from the gap to cause a fault.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides a wiring terminal structure of a circuit protection device.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a wiring terminal structure of a circuit protection device comprises a wiring hole arranged on a main body, a U-shaped wiring board used for connecting an exposed end of a cable is arranged below the wiring hole, and a locking bolt is connected to the main body in a threaded manner;

the locking bolt front end is connected with U type wiring board complex wiring briquetting, and the setting that the drive of wiring briquetting through locking bolt is liftable is in the wiring hole, and U type wiring board inboard is equipped with the metal preforming, and the metal preforming both sides are fixed on the lateral wall of U type wiring board.

Preferably, the terminal block is movably embedded in the U-shaped terminal block.

Preferably, guide slopes inclined inward are provided on both sides of the opening of the U-shaped wiring board.

Preferably, an arc-shaped bulge protruding towards the wiring pressing block is formed in the middle of the metal pressing sheet along the axial direction.

Preferably, the two axial ends of the metal pressing sheet are provided with reinforcing convex ribs.

Preferably, the metal sheet is a copper metal sheet.

Preferably, a detachable sealing piece is arranged at the opening of the wiring hole, a threading through hole is formed in the middle of the sealing piece, and a plurality of groups of elastic sealing pressing petals are arranged in the threading through hole in a circumferential array.

Preferably, the sealing element and the elastic sealing pressing flap are both made of elastic silica gel.

The utility model has the beneficial effects that: compared with the prior art, the cable with various wire diameters is self-adaptive, the contact area of the metal pressing sheet and the exposed end of the cable can be increased through self-adaptive bending coating of the metal pressing sheet, the wiring effect is improved, and the conductive wire harness of the exposed end of the cable can be effectively gathered.

Drawings

FIG. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a first partial cross-sectional view of an embodiment of the present invention;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

FIG. 4 is a partial cross-sectional view of the second embodiment of the present invention (in a wiring state);

FIG. 5 is an enlarged schematic view at B in FIG. 4;

FIG. 6 is a third schematic partial cross-sectional view of an embodiment of the present invention;

fig. 7 is an enlarged schematic view at C in fig. 6.

In the figure, 10, main body; 11. a wiring hole; 20. a U-shaped wiring board; 21. a guide slope; 22. metal tabletting; 23. an arc-shaped bulge; 24. reinforcing the convex ribs; 30. locking the bolt; 31. a wiring pressing block; 40. a seal member; 41. a threading through hole; 42. elastically sealing the pressing flap; 50. a cable.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1-7, the terminal structure of the circuit protection device provided by the present invention comprises a wiring hole 11 disposed on a main body 10, a U-shaped wiring board 20 for connecting the exposed end of a cable 50 is disposed below the wiring hole 11, and a locking bolt 30 is screwed on the main body 10;

the front end of the locking bolt 30 is connected with a wiring pressing block 31 matched with the U-shaped wiring board 20, the wiring pressing block 31 is arranged in the wiring hole 11 in a lifting mode under the driving of the locking bolt 30, a metal pressing sheet 22 is arranged on the inner side of the U-shaped wiring board 20, and two sides of the metal pressing sheet 22 are fixed on the side wall of the U-shaped wiring board 20.

Specifically, when the cable 50 is connected, the exposed end of the cable 50 is inserted into the wiring hole 11 and supported on the metal pressing plate 22, the locking bolt 30 is screwed down to drive the wiring pressing block 31 to press down, and the exposed end of the cable 50 is pressed on the metal pressing plate 22 through the wiring pressing block 31, wherein, in the process of pressing down the wiring pressing block 31, the joint of the metal pressing plate 22 and the exposed end of the cable 50 is bent and deformed, so as to increase the contact area between the exposed end of the metal pressing plate 22 and the exposed end of the cable 50, improve the wiring effect of the wiring terminal, and in the process of bending and deformation of the metal pressing plate 22, the effect of gathering and tightening the conductive wire harness at the exposed end of the cable 50 can be achieved, and the conductive wire harness at the exposed end of the cable 50 is prevented from being scattered, compared with the prior art, the cable 50 with various wire diameters has self-adaptability, and the contact area between the exposed end of the metal pressing plate 22 and the cable 50 can be increased through the self-adaptive bending and wrapping of the metal pressing plate 22, the wiring effect is improved, and the conductive wire bundles at the exposed end of the cable 50 can be effectively gathered, wherein the metal pressing sheet 22 preferably adopts metal with better ductility, for example, the metal pressing sheet 22 can adopt a copper metal sheet.

Furthermore, the wiring pressing block 31 can be movably embedded into the U-shaped wiring board 20, the gap between the two sides of the wiring pressing block 31 and the side wall of the U-shaped wiring board 20 is smaller than the diameter of the conductor wire at the exposed end of the cable 50, and all the conductor wires at the exposed end of the cable 50 can be pressed on the metal pressing sheet 22 in the process that the wiring pressing block 31 is pressed down.

Further, the opening both sides of U type wiring board 20 are equipped with the direction inclined plane 21 of inside slope, wherein, direction inclined plane 21 can play two effects, one can play the guide effect to the exposed end of cable 50, insert cable 50 or when compressing tightly cable 50, can pass through the direction of direction inclined plane 21, make all conductor wires of the exposed end of cable 50 gather together in U type wiring board 20, two in-process that wiring briquetting 31 pushed down, through the direction of direction inclined plane 21, make that wiring briquetting 31 can be smooth and easy imbed in U type wiring board 20, avoid taking place the dislocation.

Further, the protruding 23 of arc of 31 directions convex is formed to wiring briquetting along the axial in the middle part of metal preforming 22, because when installation circuit protection device, the cable 50 that probably uses has a lot of, when 50 footpaths of cable are too big, the problem of the unable abundant cladding cable 50 exposed ends of metal preforming 22 appears easily, through setting up the bellied 23 of arc that makes progress, when metal preforming 22 pressurized bending deformation, the synchronous pressurized deformation of the protruding 23 of arc, reverse protrusion downwards, synchronous cladding is on the cable 50 exposed ends, thereby avoid the footpath too big, the unable abundant cladding cable 50 exposed ends of metal preforming 22.

Further, the metal pressing sheet 22 is provided with reinforcing ribs 24 at two axial ends for reinforcing the structural strength of the metal pressing sheet 22, and when the metal pressing sheet 22 is deformed under pressure, the reinforcing ribs 24 can be matched with the exposed ends of the compression cables 50.

Further, wiring hole 11 opening part is equipped with detachable sealing member 40, sealing member 40 passes through the buckle to be fixed on wiring hole 11 opening, sealing member 40 middle part is equipped with threading through-hole 41, the circumference permutation is equipped with multiunit elasticity sealing pressure lamella 42 in threading through-hole 41, the material of sealing member 40 and elasticity sealing pressure lamella 42 is elastic silica gel, when inserting cable 50, the exposed end of cable 50 promotes elasticity sealing pressure lamella 42 bending deformation, the elasticity sealing pressure lamella 42 of circumference array setting can play certain tightening effect to the exposed end of cable 50, avoid the conductor wire too loose, improve the leakproofness of wiring hole 11 department through sealing member 40, avoid the foreign matter to get into wiring hole 11.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, and the scope of protection is still within the scope of the utility model.

Claims

1. A wiring terminal structure of a circuit protection device comprises a wiring hole (11) arranged on a main body (10), and is characterized in that a U-shaped wiring board (20) used for connecting an exposed end of a cable (50) is arranged below the wiring hole (11), and a locking bolt (30) is connected to the main body (10) in a threaded manner;

the wiring device is characterized in that a wiring pressing block (31) matched with the U-shaped wiring board (20) is connected to the front end of the locking bolt (30), the wiring pressing block (31) is arranged in the wiring hole (11) in a lifting mode through the driving of the locking bolt (30), a metal pressing sheet (22) is arranged on the inner side of the U-shaped wiring board (20), and two sides of the metal pressing sheet (22) are fixed on the side wall of the U-shaped wiring board (20).

2. The circuit protection device terminal block structure according to claim 1, wherein the terminal block (31) is removably embedded in the U-shaped terminal block (20).

3. The terminal structure of claim 1, wherein guide slopes (21) inclined inward are provided on both sides of the opening of the U-shaped terminal block (20).

4. The terminal structure of claim 1, wherein the metal pressing piece (22) is formed with an arc-shaped protrusion (23) protruding toward the terminal pressing piece (31) in the middle portion in the axial direction.

5. The terminal structure of claim 4, wherein the metal pressing piece (22) is provided with reinforcing ribs (24) at both axial ends.

6. The circuit protection device terminal structure according to claim 1, wherein the metal pressing piece (22) is a copper metal piece.

7. The structure of the wiring terminal of the circuit protection device according to claim 1, wherein the opening of the wiring hole (11) is provided with a detachable sealing member (40), the middle part of the sealing member (40) is provided with a threading through hole (41), and a plurality of groups of elastic sealing pressing flaps (42) are arranged in the threading through hole (41) in a circumferential array.

8. The circuit protection device terminal structure according to claim 7, wherein the sealing member (40) and the resilient sealing pressing piece (42) are made of resilient silicone.