CN210349537U

CN210349537U - Transformer binding post

Info

Publication number: CN210349537U
Application number: CN201921734336.5U
Authority: CN
Inventors: 李桐
Original assignee: Dalian Uc S&t Co ltd
Current assignee: Dalian Uc S&t Co ltd
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-04-17
Anticipated expiration: 2029-10-16

Abstract

The utility model relates to a transformer wiring terminal, which comprises a wiring end plate, wherein a wiring end block is fixed on the wiring end plate, the wiring end plate is provided with a plurality of wiring ports with threads on the inner wall, the wiring end block is provided with a vertical first threaded hole, two clamping plates with gaps are fixed on the wiring end block, transverse second threaded holes are respectively formed in the two clamping plates, the upper surfaces of the wiring end plate, the wiring end block and the clamping plate are kept flat, a first protective plate is in threaded connection with the first threaded hole from top to bottom, the first protective plate is abutted against the upper surfaces of the wiring end plate, the wiring end block and the clamping plate, and a second protection plate is connected in the second threaded hole from bottom to top in a threaded manner and is L-shaped, and the second protection plate is abutted to the lower surfaces of the wiring end plate, the wiring end block and the clamping plate respectively.

Description

Transformer binding post

Technical Field

The utility model relates to a transformer field especially relates to a transformer binding post.

Background

Transformers are common devices in the industrial power transmission and transformation industry. And a step-up transformer is arranged in a high-voltage direct-current power supply for the industrial electric precipitation industry. The input power of such a transformer is typically 50-200 KW. Single phase input current 50A-700A. A frequently used input terminal for transformers is a porcelain bushing terminal. The external cable is connected to the transformer through the binding post. When the single-phase input current of the transformer is below 100A. The number of the external cables is not more than 1, and the nut crimping cable is reliable. But the nut is pressed against more than 2 cables. The phenomena of unreliable crimping, easy loosening, heating of the binding post and the like can occur. Especially, the single-phase input current is more than 200A, the crimping cables are more than 3, and the problem of unreliable crimping is easy to occur. And the terminal head is burnt and other faults caused by illegal wiring.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome exist among the prior art not enough, provide a transformer binding post.

The utility model discloses a realize through following technical scheme: the utility model provides a transformer wiring terminal, includes the terminal plate of working a telephone switchboard, be fixed with wiring end block on the terminal plate of working a telephone switchboard, set up on the terminal plate of working a telephone switchboard port that is equipped with the screw thread on a plurality of inner walls, set up vertical first screw hole on the terminal block of working a telephone switchboard, be fixed with two chucking boards that leave the gap on the terminal block of working a telephone switchboard, seted up horizontal second screw hole on two chucking boards respectively, the upper surface of terminal plate of working a telephone switchboard, terminal block of working a telephone switchboard and chucking board keeps flat, threaded connection has first guard plate from top to bottom in the first threaded hole, the upper surface butt of first guard plate and terminal plate of working a telephone switchboard, terminal block of working a telephone switchboard and chucking board, second guard plate is the L type, the second guard plate respectively with the lower surface butt of terminal plate of working a telephone switchboard.

The utility model has the advantages that: the lower part of the wiring terminal adopts a connection mode of an open nut, the wiring terminal can be directly screwed into a transformer wiring terminal through a wiring terminal block, and then the open nut is pressed tightly by a bolt, so that the conductive contact area of a screw rod and the nut is ensured. And the two clamping plates can be mutually locked through the second threaded holes on the two clamping plates so as to lock the whole wiring terminal. And the mounting hole on the surface of the wiring terminal plate is used for crimping the cable head. The copper heads of the cables can be connected with the upper surface and the lower surface in a pressing mode, so that the wiring terminal of the transformer is expanded to 4-point wiring, and the number of the connected cables is 2-4.

The introduction of the wiring terminal solves the problem of multiple pressing lines of a single wiring terminal. The single-phase wiring terminal is more suitable for the unreasonable problem that a large current is more than 100A, and a plurality of wires are connected into the same wiring terminal, so that the phenomena that the connection of cables is unreliable in compression joint, the terminals generate heat and the like do not exist through the expansion terminals. The access wire is more beautiful and convenient. The method has a positive effect on improving the operation quality and the installation reliability of the equipment.

And because the binding post is electrically conductive, its surface plates and scribbles easy conductive coating, makes two guard plates connect the upper surface and the lower surface of binding post respectively and protect respectively through the top and the below of two guard plates difference threaded connection in the first screwed hole like this, prevents to be worn and torn in the transportation to influence electrically conductive, two guard plates can also be unscrewed and recycled.

Drawings

Fig. 1 is a schematic front view of the present invention;

fig. 2 is a schematic top view of the present invention;

fig. 3 is a schematic structural view of the transformer when the transformer is connected with the terminal of the transformer;

in the figure: 1. a terminal plate; 2. a terminal block; 3. a wiring port; 4. a first threaded hole; 5. a chucking plate; 6. a second threaded hole; 7. a first guard plate; 8. and a second protection plate.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.

As shown in the drawing, the utility model discloses a terminal plate 1, be fixed with wiring end block 2 on the terminal plate 1, set up threaded wiring port 3 on a plurality of inner walls on the terminal plate 1, set up vertical first screw hole 4 on the wiring end block 2, be fixed with two chucking boards 5 that leave the clearance on the wiring end block 2, set up horizontal second screw hole 6 on two chucking boards 5 respectively, the upper surface of terminal plate 1, terminal block 2 and chucking board 5 of working a telephone switchboard is kept level, threaded connection has first guard plate 7 from top to bottom in the first screw hole 4, first guard plate 7 and terminal plate 1, terminal block 2 and chucking board 5's upper surface butt, threaded connection has second guard plate 8 from bottom to top in the second screw hole 6, and second guard plate 8 is the L type, and second guard plate 8 respectively with terminal plate 1 of working a telephone switchboard, The lower surfaces of the terminal block 2 and the chucking plate 5 abut against each other.

The utility model has the advantages that: the lower part of the wiring terminal adopts a connection mode of an open nut, the wiring terminal can be directly screwed into a transformer wiring terminal through the wiring terminal block 2, and then the open nut is pressed tightly by a bolt, so that the conductive contact area of a screw rod and the nut is ensured. And the two clamping plates 5 can be locked with each other through the second threaded holes 6 so as to lock the whole terminal. And the mounting hole on the surface of the terminal plate 1 is used for crimping the cable head. The copper heads of the cables can be connected with the upper surface and the lower surface in a pressing mode, so that the wiring terminal of the transformer is expanded to 4-point wiring, and the number of the connected cables is 2-4.

And because the binding post is electrically conductive, its surface plates and scribbles easy conductive coating, and the top and the below of threaded connection in first screw hole 4 make two guard plates connect the upper surface and the lower surface of binding post respectively and protect respectively through two guard plates like this, prevent to be worn and torn in the transportation respectively to influence electrically conductive, two guard plates can also be unscrewed and recycled.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a transformer binding post which characterized in that: including the wiring end plate, be fixed with wiring end block on the wiring end plate, set up the wiring port that is equipped with the screw thread on a plurality of inner walls on the wiring end plate, set up vertical first screw hole on the wiring end block, be fixed with two chucking boards that leave the gap on the wiring end block, set up horizontal second screw hole on two chucking boards respectively, the upper surface of wiring end plate, wiring end block and chucking board keeps level, threaded connection has first guard plate from top to bottom in the first threaded hole, the upper surface butt of first guard plate and wiring end plate, wiring end block and chucking board, the threaded connection has the second guard plate by supreme threaded connection from bottom in the second threaded hole, and the second guard plate is the L type, the second guard plate respectively with the lower surface butt of wiring end plate, wiring end block and chucking board.