CN218730747U

CN218730747U - Arc isolation device for connecting piece of circuit breaker

Info

Publication number: CN218730747U
Application number: CN202222626188.3U
Authority: CN
Inventors: 荆子胜; 高明利; 王力; 唐茂华; 孙洪福
Original assignee: Fourth Construction Co Ltd of China Construction Eighth Engineering Division Co Ltd
Current assignee: Fourth Construction Co Ltd of China Construction Eighth Engineering Division Co Ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-03-24
Anticipated expiration: 2032-09-30

Abstract

The utility model discloses an arc insulation device for a connecting piece of a circuit breaker, which relates to the field of electrical equipment, and adopts the technical scheme that the arc insulation device comprises a connecting piece group and a shell, wherein the connecting piece group comprises a plurality of connecting pieces, the connecting pieces are used for electrically connecting a wiring end of the circuit breaker with a cable end, one end of each connecting piece is connected with the wiring end of the circuit breaker, and the other end of each connecting piece is connected with the end part of the cable; the shell is sleeved outside the connecting piece set, and the shell separates each connecting piece in the connecting piece set. The utility model has the advantages that the connecting piece between the circuit breaker and the cable is formed by the shell limiting connection piece, on one hand, the connection end of the circuit breaker and the cable are convenient to connect, and the problem that the cable is difficult to connect with the circuit breaker after being provided with the copper nose is solved; on the other hand, the device is used for connecting cables, the connecting pieces cannot easily shake, and the shell is used for splicing the connecting pieces into a whole which is not in contact with each other, so that the safety is ensured, and the connecting pieces are easy to shake.

Description

Arc isolation device for connecting piece of circuit breaker

Technical Field

The utility model relates to an electric field specifically is a circuit breaker connection piece separates arc device.

Background

In the construction of building electrical engineering, often run into the unmatched phenomenon of block terminal circuit breaker line ball terminal size and cable conductor line footpath copper nose size, the on-the-spot mode of adopting the installation copper bar that continues on former circuit breaker line ball terminal of mostly adopting is solved. Referring to fig. 1, because the copper bars that continue and the former circuit breaker line ball terminal only rely on a set of bolt fastening, can't effectively guarantee to continue the copper bars interval. And the copper noses connected with the copper bars are very easy to contact with each other after the continuous copper bars are close to each other, so that safety accidents occur.

SUMMERY OF THE UTILITY MODEL

The utility model provides a circuit breaker connection piece separates arc device, solves because connection piece is difficult to fix and leads to its problem of contact each other.

In order to achieve the above object, the utility model provides a following technical scheme: an arc-isolating device for a connecting piece of a circuit breaker comprises,

the connecting piece group comprises a plurality of connecting pieces, the connecting pieces are used for electrically connecting the wiring end of the breaker with the cable end, one end of each connecting piece is connected with the wiring end of the breaker, and the other end of each connecting piece is connected with the end part of the cable;

the shell is sleeved outside the connecting piece set and separates each connecting piece in the connecting piece set;

the inside of the shell is provided with mutually isolated clamping grooves corresponding to the connecting pieces, and the connecting pieces of the connecting piece group are respectively clamped in the clamping grooves of the shell;

the two ends of the connecting piece group respectively extend to the outer parts of the two sides of the shell, and the end part of each connecting piece is provided with a wiring part.

Preferably, the wire connecting portion at the end of each of the connecting members is a through hole opened at both ends of each of the connecting members.

Preferably, the connecting piece in the connecting piece group is a long strip-shaped metal body;

one end of the connecting piece group connected with the cable is taken as a wire inlet end, and the other end connected with the breaker is taken as a wire outlet end;

the connecting piece group comprises a middle connecting piece positioned in the middle of the shell and side connecting pieces positioned on the side parts of the shell, and the wire inlet end of each side connecting piece is obliquely arranged towards one side far away from the wire inlet end of the middle connecting piece.

Preferably, the wire inlet ends and the wire outlet ends of the connecting pieces in the connecting piece group are respectively distributed at equal intervals;

and taking the distance between the wire inlet ends of the connecting pieces in the connecting piece group as a, and the distance between the wire outlet ends of the connecting pieces in the connecting piece group as b, wherein a is larger than b.

Preferably, one middle connecting piece is arranged, and two sides of the middle connecting piece are respectively provided with one side connecting piece;

the clamping groove corresponding to the middle connection piece is a rectangular groove, the clamping groove corresponding to the side connection piece is a right-angled trapezoidal groove, and the right-angled edge of the right-angled trapezoidal groove is far away from the middle connection piece.

Preferably, the connecting piece is made of copper; the shell is made of transparent plastic materials.

Compared with the prior art, the method has the following beneficial effects: the connecting piece between the circuit breaker and the cable is limited by the shell to form a connecting piece, so that the connecting piece is convenient to connect a wiring end of the circuit breaker and the cable, and the problem that the cable is difficult to connect with the circuit breaker after a copper nose is additionally arranged is solved; on the other hand, the device is used for connecting cables, the connecting pieces cannot easily shake, and the shell is used for splicing the connecting pieces into a whole which is not in contact with each other, so that the safety is ensured, and the connecting pieces are easy to shake.

The shell made of transparent materials is selected, so that the state of the internal connection piece can be observed conveniently.

Drawings

FIG. 1 is a state diagram of the background art of the present invention;

fig. 2 is a schematic view of the overall structure of embodiment 1 of the present invention;

fig. 3 is a plan view of embodiment 1 of the present invention;

FIG. 4 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is a schematic view of the overall structure of embodiment 2 of the present invention;

fig. 6 is a plan view of embodiment 2 of the present invention;

FIG. 7 is a partial enlarged view of B of FIG. 6;

FIG. 8 is a cross-sectional view taken along line C-C of FIG. 7;

fig. 9 is a schematic structural view of a clip according to embodiment 2 of the present invention.

In the figure:

1. a connecting piece group; 11. a middle connecting piece; 12. a side connection member; 2. a housing; 21. a card slot; 3. a clamping piece; 31. pushing the plate; 32. a splint; 33. a clamping block; 34. and a top plate.

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.

Example 1

Referring to fig. 1-3, the present invention provides the following technical solutions: an arc isolation device for a connecting piece of a circuit breaker comprises a connecting piece group 1 consisting of a plurality of connecting pieces, wherein the connecting pieces are used for electrically connecting a wiring end of the circuit breaker with a cable end, one end of each connecting piece is connected with the wiring end of the circuit breaker, and the other end of each connecting piece is connected with the end part of the cable;

the connecting piece group 1 is sleeved with the shell 2, and the shell 2 separates the connecting pieces in the connecting piece group 1; the inside of the shell 2 is provided with mutually separated clamping grooves 21 corresponding to the connecting pieces, and the connecting pieces are respectively clamped in the clamping grooves 21 of the shell 2; two ends of each connecting piece extend to the outer parts of two sides of the shell 2 respectively, and through holes for connecting the circuit breaker and the copper noses of the cables are formed in two end parts of each connecting piece.

The connecting piece in the connecting piece group 1 is a strip-shaped metal body; one end of the connecting piece group 1 connected with the cable is taken as a wire inlet end, and the other end connected with the breaker is taken as a wire outlet end; the cluster 1 comprises a central junction 11, located in the middle of the shell 2, and lateral junctions 12, located at the sides of the shell 2.

The wire inlet end and the wire outlet end of the connecting piece in the connecting piece group 1 are respectively distributed at equal intervals; the distance between the wire inlet ends of the connecting pieces in the connecting piece group 1 is a, the distance between the wire outlet ends of the connecting pieces in the connecting piece group 1 is b, and a is larger than b.

One middle connecting piece 11 is arranged, and two side connecting pieces 12 are respectively arranged at two sides of the middle connecting piece 11; the clamping groove 21 of the corresponding middle connecting piece 11 is a rectangular groove, the clamping groove 21 of the corresponding side connecting piece 12 is a right-angled trapezoidal groove, and the right-angled edge of the right-angled trapezoidal groove is far away from the middle connecting piece 11.

When the device is used, the wire outlet end of the connecting piece is connected with the wiring end of the circuit breaker, the wire inlet end of the connecting piece is connected with the copper nose of the cable respectively, the cable can be electrically connected with the circuit breaker, and the device is very convenient to use.

Example 2

Referring to fig. 5-9, on the basis of the above embodiment, the housing 2 is composed of two fastened plate bodies, the two plate bodies are respectively provided with a plurality of grooves, and when the two plate bodies are fastened, the grooves are combined into the clamping groove 21;

the both ends symmetry in the 2 outside of casing sets up joint spare 3, and two plate bodys of casing 2 are become integrative by 3 joint of joint spare.

The clamping piece 3 comprises a push plate 31, and a clamping plate 32 in a shape of Contraband is fixedly arranged on the peripheral side of the upper side surface of the push plate 31; when the clip 3 is connected to the housing 2, the clamping plate 32 holds the two plate bodies of the housing 2 inside.

A clamping block 33 is fixedly arranged on one side of the clamping plate 32, which is far away from the push plate 31, the clamping block 33 protrudes and extends towards the middle part of the clamping plate 32, and the upper side surface of the clamping block 33 is an inclined surface; when the clamping piece 3 is clamped with the shell 2, the push plate 31 is abutted against one side edge of the short shaft of the shell 2, and one surface of the clamping block 33 facing the push plate 31 is abutted against the other side edge of the short shaft of the shell 2.

The part of the side connecting piece 12 positioned in the shell 2 is of an inclined strip-shaped structure; the middle part of the upper side surface of the push plate 31 is fixedly provided with a top plate 34, and one surface of the top plate 34 far away from the clamping plate 32 is an inclined surface which corresponds to the inclined strip-shaped structure of the side continuous piece 12.

The right trapezoid plate body or the right triangle plate body of the top plate 34, when the clamping piece 3 is connected with the shell 2, the right-angle side of the top plate 34 is attached to the right-angle side of the corresponding clamping groove 21 of the side connection piece 12. The clamping piece 3 is made of materials with certain elasticity.

Through the structure of this embodiment, can be earlier connect with the piece that continues with cable and circuit breaker well, then detain 2 covers of casing on three continuous pieces, well continuous piece 11 is because it is located the middle part, and whole nearly rectangle rectangular form, consequently places in draw-in groove 21 more easily. And side connection piece 12 is because the pulling force of cable itself leads to uncertain higher, adopts the structure of this device, and the draw-in groove 21 that corresponds side connection piece 12 is because its area is great, so possesses better adaptability when the installation, is convenient for detain side connection piece 12 in it, after initial detaining, combines the push of joint piece 3, utilizes roof 34 to support side connection piece 12 from inside, along with the target in place of joint piece 3, roof 34 also can fix side connection piece 12 well to accomplish the installation.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An arc insulation device for a connecting piece of a circuit breaker is characterized by comprising,

the connecting piece group (1) comprises a plurality of connecting pieces, the connecting pieces are used for electrically connecting the wiring ends of the circuit breakers and the cable ends, one ends of the connecting pieces are connected with the wiring ends of the circuit breakers, and the other ends of the connecting pieces are connected with the end parts of the cables;

the shell (2), the shell (2) is sleeved outside the connection piece set (1), and the shell (2) separates each connection piece in the connection piece set (1);

clamping grooves (21) which are mutually separated are formed in the shell (2) corresponding to the connecting pieces, and the connecting pieces of the connecting piece group (1) are respectively clamped in the clamping grooves (21) of the shell (2);

two ends of the connecting piece group (1) extend to the outer portions of two sides of the shell (2) respectively, and the end portion of each connecting piece is provided with a wiring portion.

2. The circuit breaker connecting piece arc-insulating device of claim 1, wherein the connecting portion of the end of the connecting piece is a through hole opened at both ends of each connecting piece.

3. The circuit breaker connecting piece arc-isolating device according to claim 1, characterized in that the connecting pieces in the connecting piece group (1) are elongated metal bodies;

one end of the connecting piece set (1) connected with the cable is taken as a wire inlet end, and one end connected with the breaker is taken as a wire outlet end;

the connecting piece group (1) comprises a middle connecting piece (11) positioned in the middle of the shell (2) and side connecting pieces (12) positioned on the side parts of the shell (2), and the wire inlet end of each side connecting piece (12) is obliquely arranged towards one side far away from the wire inlet end of the middle connecting piece (11).

4. The circuit breaker connecting piece arc-isolating device of claim 3, characterized in that the incoming line ends and the outgoing line ends of the connecting pieces in the connecting piece group (1) are respectively distributed at equal intervals;

and taking the distance between the wire inlet ends of the connecting pieces in the connecting piece group (1) as a and the distance between the wire outlet ends of the connecting pieces in the connecting piece group (1) as b, wherein a is larger than b.

5. The circuit breaker connecting piece arc-isolating device according to claim 4, characterized in that one middle connecting piece (11) is provided, and one side connecting piece (12) is respectively provided at both sides of the middle connecting piece (11);

the clamping groove (21) corresponding to the middle connecting piece (11) is a rectangular groove, the clamping groove (21) corresponding to the side connecting piece (12) is a right-angled trapezoidal groove, and the right-angled edge of the right-angled trapezoidal groove is far away from the middle connecting piece (11).

6. The arc-isolating device for the circuit breaker connecting piece according to claim 5, wherein the housing (2) is composed of two plates which are fastened together, the two plates are respectively provided with a plurality of grooves, and when the two plates are fastened together, the grooves are combined into the clamping groove (21);

the two ends of the outer side of the shell (2) are symmetrically provided with the clamping pieces (3), and the two plate bodies of the shell (2) are clamped into a whole by the clamping pieces (3).

7. The circuit breaker connecting piece arc-isolating device of claim 6, wherein the clamping piece (3) comprises a push plate (31), and a clamping plate (32) in the shape of Contraband "is fixedly arranged on the peripheral side of the upper side surface of the push plate (31);

when joint spare (3) are connected with casing (2), splint (32) are inside with two plate body centre gripping of casing (2).

8. The circuit breaker connecting piece arc-isolating device of claim 7, wherein a clamping block (33) is fixedly arranged on one side of the clamping plate (32) far away from the push plate (31), the clamping block (33) protrudes and extends towards the middle of the clamping plate (32), and the upper side surface of the clamping block (33) is an inclined surface;

when the clamping piece (3) is clamped with the shell (2), the push plate (31) is abutted against one side edge of the short shaft of the shell (2), and one surface of the clamping block (33) facing the push plate (31) is abutted against the other side edge of the short shaft of the shell (2).

9. The circuit breaker connection arc-insulating device according to claim 8, characterized in that the portion of the side connection (12) inside the casing (2) is an inclined strip-shaped structure;

the middle part of the upper side surface of the push plate (31) is fixedly provided with a top plate (34), one surface of the top plate (34) far away from the clamping plate (32) is an inclined surface, and the inclined surface corresponds to the inclined strip-shaped structure of the side splicing piece (12).

10. The circuit breaker connecting piece arc-isolating device of claim 9, wherein the right-angle trapezoidal plate body or the right-angle triangular plate body of the top plate (34) is attached to the right-angle side of the corresponding slot (21) of the side connecting piece (12) at the right-angle side of the top plate (34) when the clamping piece (3) is connected to the housing (2).