CN217086905U - Novel binding post annex - Google Patents

Abstract

The utility model relates to a low voltage apparatus technical field specifically is a novel binding post annex, including both ends open-ended square insulating housing and wiring mechanism, wiring mechanism includes the wiring board, connection terminal and both ends respectively with wiring board and connection terminal threaded connection's stud, wiring board bottom shaping has the L type grafting portion that can peg graft with circuit breaker wiring mouth, it dodges the space to form between grafting portion top and the insulating housing lateral wall, connection terminal bottom shaping has connecting portion, insulating housing bottom processing has the L type spacing groove with grafting portion and connecting portion looks adaptation, spacing groove one end extends to insulating housing openly, insulating housing lateral wall processing has the mounting hole that corresponds with stud's head. The utility model discloses can improve wiring board and connection terminal and connect compactness and reliability, be difficult to in close contact with between connection terminal and the wiring board in having solved current binding post annex to lead to the problem of easy contact failure between binding post annex and the circuit breaker.

Description

Novel binding post annex

Technical Field

The utility model relates to a low voltage apparatus technical field specifically is a novel binding post annex.

Background

When installing more than three circuit breakers in a switch board, generally can connect in parallel through a plurality of circuit breakers of installation busbar, however, behind one of them wiring mouth installation busbar of circuit breaker, another wiring mouth can be sheltered from by this busbar, leads to the unable binding post annex with the outside of wiring mouth that is blockked to be connected.

A conventional patent publication No. CN212695101U proposes a terminal attachment which can be inserted outside a circuit breaker, for example, when used to connect a circuit breaker having a bus bar mounted thereon, the attachment avoids the bus bar through a space above an insertion portion at one end of a terminal block, prevents an upper case above a connecting portion at the other end of the terminal block from being blocked by the bus bar, and can ensure that the terminal block can be reliably contacted with the circuit breaker without interference. However, the wire holder and the wiring board in the terminal attachment are connected and attached together by the buckle between the upper shell and the lower shell, so that the wire holder and the wiring board are difficult to be in close contact, and the phenomenon of poor contact between the terminal attachment and the circuit breaker is caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel binding post annex can improve wiring board and connection terminal and connect compactness and reliability, has solved and has been difficult to in close contact between connection terminal and the wiring board in the current binding post annex to lead to the problem of easy contact failure between binding post annex and the circuit breaker.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel binding post annex, includes both ends open-ended square insulating housing and wiring mechanism, wiring mechanism include wiring board, connection terminal and both ends respectively with the wiring board with connection terminal threaded connection's stud, wiring board bottom shaping has the L type grafting portion that can peg graft with circuit breaker wiring mouth, grafting portion top with form between the insulating housing lateral wall and dodge the space, wiring terminal bottom shaping has connecting portion, insulating housing bottom processing have with grafting portion with the L type spacing groove of connecting portion looks adaptation, spacing groove one end extends to insulating housing is positive, insulating housing lateral wall processing have with the mounting hole that stud's head corresponds.

Optionally, the top at both ends of the inner side of the insulating housing is provided with a first limiting plate, the distance between the two first limiting plates is the same as the length of the wiring board and the wire holder, gaps are formed between both ends of the first limiting plate and the inner wall of the insulating housing, and the gaps are not smaller than the thickness of the wiring board and the thickness of the wire holder.

Optionally, the mounting hole is step-shaped, the head of the stud bolt is embedded in the mounting hole, and one end of the mounting hole extends to the front face of the insulating housing.

Optionally, the socket further comprises a fastening bolt, and the inserting part and the connecting part are attached and fixed through the fastening bolt.

Optionally, second limiting plates are arranged on two sides of the insertion part, and the distance between the two second limiting plates is matched with the width of the connecting part.

Optionally, a wiring hole is processed in the middle of the side wall of the stud bolt, and the wiring hole is an inclined hole.

Compared with the prior art, the utility model provides a novel binding post annex possesses following beneficial effect:

1. the utility model discloses a setting contains wiring board, connection terminal and stud's wiring mechanism to process the spacing groove with the grafting portion of wiring board and the looks adaptation of connection terminal on insulating casing, when wiring board and connection terminal are separated, can insert to the insulating casing through the spacing groove, and when screwing up stud and pressing from both sides the electric wire between connection terminal and wiring board, the spacing groove can realize the spacing to wiring board and connection terminal, thereby make wiring board and connection terminal connect the back inseparabler and more reliable;

2. the utility model is provided with the two first limiting plates, after the wiring board and the wiring seat are close to each other, the top of the wiring board can be limited in the insulating shell by the two first limiting plates, so that the wiring board is more stable in the insulating shell;

3. the utility model discloses a set up the wiring hole of slope at stud lateral wall middle part, it is downthehole to insert the wiring after peeling the electric wire tip, along with stud's rotation, can twine the electric wire on stud to this tensile ability of dragging after improving connection of electric lines.

Drawings

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

FIG. 2 is a schematic view of the split structure of the insulating housing and the wiring mechanism of the present invention;

fig. 3 is a schematic view of the structure of the present invention;

FIG. 4 is a schematic structural view of the stud bolt of the present invention;

fig. 5 is a schematic view of the split structure of the wiring board and the wiring base of the present invention.

In the figure: 1. an insulating housing; 10. a limiting groove; 11. mounting holes; 12. a first limit plate; 2. a wiring board; 20. a plug-in part; 200. a second limiting plate; 3. a wire holder; 30. a connecting portion; 4. a stud bolt; 40. a wiring hole; 5. and fastening the bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment is as follows: referring to fig. 1 to 5, an embodiment of the present invention provides a technical solution: a novel wiring terminal accessory comprises a square insulating shell 1 with openings at two ends and a wiring mechanism, wherein the wiring mechanism comprises a wiring board 2, a wiring seat 3 and a stud bolt 4 with two ends respectively in threaded connection with the wiring board 2 and the wiring seat 3, an L-shaped plugging part 20 capable of being plugged with a wiring port of a circuit breaker is formed at the bottom end of the wiring board 2, a avoiding space is formed between the upper part of the plugging part 20 and the side wall of the insulating shell 1, a connecting part 30 is formed at the bottom end of the wiring seat 3, an L-shaped limiting groove 10 matched with the plugging part 20 and the connecting part 30 is processed at the bottom of the insulating shell 1, one end of the limiting groove 10 extends to the front surface of the insulating shell 1, and a mounting hole 11 corresponding to the head of the stud bolt 4 is processed at the side wall of the insulating shell 1; during wiring, insert insulating housing 1 with whole wiring mechanism through 10 open ends in spacing groove, then place electric wire end portion between wiring board 2 and connection terminal 3, through screwing up stud 4, can press from both sides the electric wire when pressing from both sides tightly between connection terminal 3 and wiring board 2, make wiring board 2 and connection terminal 3 move to the other end of spacing groove 10, utilize spacing groove 10 to carry on spacingly to wiring board 2 and connection terminal 3, can not break away from between wiring board 2 after spacing like this and the connection terminal 3, it is more reliable to connect.

In order to improve the stability of wiring board 2 and wire holder 3 in insulating housing 1, on the basis of above-mentioned embodiment, the top at the inboard both ends of insulating housing 1 all is equipped with first limiting plate 12 in this embodiment, the interval of two first limiting plates 12 is the same with the length of wiring board 2 and wire holder 3, first limiting plate 12 both ends have the clearance with insulating housing 1 inner wall, and the clearance is not less than the thickness of wiring board 2 and wire holder 3, two first limiting plates 12 can be spacing to wiring board 2 and wire holder 3 top after being close to each other, make it more firm in insulating housing 1.

On the basis of the above embodiments, in the present embodiment, the mounting hole 11 is stepped, the head of the stud bolt 4 is embedded in the mounting hole 11, and one end of the mounting hole 11 extends to the front surface of the insulating housing 1, so that the head of the stud bolt 4 can be hidden in the side wall of the insulating housing 1, and the mounting and dismounting of the stud bolt 4 are facilitated.

On the basis of the above embodiment, the present embodiment further includes the fastening bolt 5, the inserting portion 20 and the connecting portion 30 are attached and fixed by the fastening bolt 5, the current conductivity between the wiring board 2 and the wire holder 3 connected by the fastening bolt 5 is higher, and when a larger diameter electric wire is clamped between the wiring board 2 and the wire holder 3, a metal gasket can be added between the inserting portion 20 and the connecting portion 30, so as to ensure the stable connection between the inserting portion 20 and the connecting portion 30.

On the basis of the above embodiments, the second limiting plates 200 are disposed on two sides of the inserting portion 20 in this embodiment, the distance between the two second limiting plates 200 is adapted to the width of the connecting portion 30, and when the connecting portion 30 contacts with the inserting portion 20, the connecting portion 30 is engaged and fixed by the two second limiting plates 200, so that the connection tightness between the connecting portion 30 and the inserting portion 20 can be improved.

On the basis of the above embodiments, in this embodiment, the wiring hole 40 is formed in the middle of the side wall of the stud bolt 4, the wiring hole 40 is an inclined hole, the end of the wire is peeled and inserted into the wiring hole 40, and the wire can be wound on the stud bolt 4 along with the rotation of the stud bolt 4, so that the anti-pulling capability of the connected wire is improved.

The working principle is as follows: firstly, the wiring mechanism is arranged in an insulating shell 1, when the wiring mechanism is arranged, an inserting part 20 and a connecting part 30 in the wiring mechanism are aligned and inserted into a limiting groove 10 on the insulating shell 1, the head part of a stud bolt 4 in the wiring mechanism is moved into a mounting hole 11, then the stud bolt 4 is slightly screwed, the inserting part 20 and the connecting part 30 are moved into and limited in a closed end of the limiting groove 10, then the inserting part 20 is inserted and fixed with a wiring port of a circuit breaker, the whole wiring terminal accessory is connected with the circuit breaker, an avoiding space capable of containing a bus bar is formed between the insulating shell 1 and the inserting part 20, when an external wire needs to be connected with the circuit breaker through the wiring terminal accessory, the end part of the wire is peeled and then inserted into a wiring hole 40 of the stud bolt 4, the stud bolt 4 is screwed again, the wire is wound on the outer wall of the stud bolt 4 and clamped between a wiring board 2 and a wiring seat 3, finally, the connection between the electric wire and the circuit breaker can be completed by fixing the plugging portion 20 of the wiring board 2 and the connecting portion 30 of the wiring holder 3 by the fastening bolt 5.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A novel binding post annex which characterized in that: comprises a square insulating shell (1) with two open ends and a wiring mechanism, wherein the wiring mechanism comprises a wiring board (2), a wiring seat (3) and a stud bolt (4) with two ends respectively in threaded connection with the wiring board (2) and the wiring seat (3), an L-shaped plugging part (20) which can be plugged with a wiring port of the circuit breaker is formed at the bottom end of the wiring board (2), an avoiding space is formed between the upper part of the inserting part (20) and the side wall of the insulating shell (1), a connecting part (30) is formed at the bottom end of the wire holder (3), an L-shaped limiting groove (10) matched with the plug-in part (20) and the connecting part (30) is processed at the bottom of the insulating shell (1), one end of the limiting groove (10) extends to the front surface of the insulating shell (1), and a mounting hole (11) corresponding to the head of the stud bolt (4) is processed on the side wall of the insulating shell (1).

2. A novel terminal attachment as claimed in claim 1, wherein: the top at the inboard both ends of insulating casing (1) all is equipped with first limiting plate (12), two the interval of first limiting plate (12) with wiring board (2) with the length of connection terminal (3) is the same, first limiting plate (12) both ends with insulating casing (1) inner wall has the clearance, just the clearance is not less than wiring board (2) with the thickness of connection terminal (3).

3. A novel terminal attachment as claimed in claim 2, wherein: the mounting hole (11) is step-shaped, the head of the stud bolt (4) is embedded into the mounting hole (11), and one end of the mounting hole (11) extends to the front face of the insulating shell (1).

4. A novel terminal attachment as claimed in claim 1, wherein: the plug-in connection structure is characterized by further comprising a fastening bolt (5), and the plug-in connection part (20) and the connection part (30) are attached and fixed through the fastening bolt (5).

5. The novel terminal attachment of claim 4, wherein: second limiting plates (200) are arranged on two sides of the inserting portion (20), and the distance between the two second limiting plates (200) is matched with the width of the connecting portion (30).

6. A novel terminal attachment as claimed in claim 1, wherein: the middle of the side wall of the stud bolt (4) is provided with a wiring hole (40), and the wiring hole (40) is an inclined hole.

Images