JP2000011843A - Insulating device of circuit breaker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily fix an insulating member to the side walls of a plurality of circuit breakers having different outer dimensions by providing a plurality of hook parts on the insulating member to be fitted to an engagement part provided each on the terminal part side of the connecting sidewall surfaces of circuit breaker casings. SOLUTION: An insulating barrier 12 has a first hook part on one end, and a second hook part and third hook part formed near the first hook part. Thin parts are formed between the first hook part and the second hook part and between the second hook part and the third hook part so as to be cuttable as occasion demands. Cutout parts 5b, 5c are formed no both sidewalls of bases 1a, 11a. When circuit breakers 1, 11 having different outer dimensions are arranged in a row, the hook part on one end of the insulating barrier 12 is fitted to the notch part 5b, the second hook part 12b is fitted to the cutout part 5c, and an insulating barrier 3 is fitted to a cut groove part 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulating device for a circuit breaker in which an insulating member is provided between each of the circuit breakers in order to insulate between connection conductors connected to respective terminals of a plurality of circuit breakers. It is about.

[0002]

2. Description of the Related Art Conventionally, an insulation device for a circuit breaker of this type has been implemented as shown in FIG. That is, 1 is a case of a circuit breaker, which is composed of a base 1a and a cover 1b. Reference numeral 2 denotes a terminal portion, and only two terminals are provided on a predetermined side of the base 1a, for example, on the power supply side (the same applies to the load side) in each circuit breaker, and each is connected to a connection conductor (not shown). Reference numeral 3 denotes a first insulating barrier having a hook portion 3a having the shape shown in the figure at one end thereof, which is formed on the base 1a between the terminal portions 2 and 2 in each breaker, and has a kerf portion corresponding to the shape of the hook portion 3a. 4 hook part 3a
Are integrally fixed to the base 1a. Thus, the insulation between the connection conductors connected to the two terminal portions 2 in each circuit breaker has been performed.

[0003]

In the case where the terminal portions 2 provided on a predetermined side of the bases 1a of the two circuit breakers are arranged substantially parallel to the arrangement direction of the two circuit breakers as shown in FIG. The insulation between the connection conductors respectively connected to the terminal portions 2 and 2 adjacent to each other between the two circuit breakers was provided with a predetermined interval L as shown in FIG. For this reason, in the related art, the mounting area of the circuit breaker is large because the predetermined interval L is provided, and the mounting area increases rapidly as the number of circuit breakers having different external dimensions increases. In addition, the connection state between the adjacent terminal portions 2 and 2 is not always sufficient, and there is a drawback that the predetermined interval L needs to be further increased if sufficient. In addition, there has been an attempt to achieve a sufficient insulating effect by covering a charged portion in the vicinity of a terminal portion of a conventional connection conductor, but the workability is poor because a considerable amount of work is required.
As a countermeasure against this, Japanese Utility Model Publication No. 60-28008 shown in FIG.
By providing notches 5 and 5 on both side walls of the adjacent base 1a as shown in FIG.
One kerf 5 is formed by adjoining the second circuit breaker.
There is a type in which a connecting conductor integrally fixedly connected to the base 1a is insulated by fitting a hook of the insulating barrier 6 into the notch 5a, but the outer dimensions of the circuit breaker are different in this configuration. In this case, it is necessary to provide the predetermined interval L as described above, and there is a disadvantage that the mounting area becomes large.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an insulating member can be easily fixed to the side walls of a plurality of circuit breakers having different external dimensions and connected to terminal portions provided respectively. It is an object of the present invention to provide an insulating device for a circuit breaker which can sufficiently insulate the connecting conductors and reduce the mounting area.

[0005]

SUMMARY OF THE INVENTION An adjacent first array is provided.
And a pair of connection conductors connected to terminal portions provided on predetermined sides of the second circuit breaker housing, respectively, and extending substantially parallel to the arrangement direction of the first and second circuit breaker housings. An engaging member provided on the side of the side wall of the circuit breaker housing on the side of the terminal, and an insulating member having a plurality of hooks fitted to the engaging portion. It has features in other places. (Claim 1) According to the circuit breaker insulating device having the above configuration, it is possible to sufficiently insulate the connection conductors connected to the terminal portions provided in each of the circuit breakers.

[0006] In the insulating device for a circuit breaker having the above structure, the insulating member may have a thin portion. (Claim 2). According to this configuration, it is not necessary to replace the insulating member when arranging circuit breakers having different external dimensions by appropriately cutting the insulating member at the thin portion.

[0007] In the insulating device for a circuit breaker having the above-mentioned structure, the thin portions may be provided between the hook portions. According to this, the insulating member can be used in common when arranging circuit breakers having different external dimensions by appropriately cutting the insulating member at the thin portion between the hook portions.

[0008] In the insulating device for a circuit breaker having the above-described structure, a predetermined number of thin portions may be provided at the other end of the insulating member. (Claim 4) According to this,
The protrusion lengths of the insulating members can all be made uniform, and the mounting area of the circuit breaker can be reduced.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. In FIG. 1, reference numeral 1 denotes a housing of a first circuit breaker, which is composed of a base 1a and a cover 1b. Reference numeral 2 denotes a terminal portion, which is provided only on a predetermined side of the base 1a, for example, on the power supply side (the same applies to the load side), to which connection conductors (not shown) are connected. Reference numeral 3 denotes an insulating barrier having a hook 3a having the shape shown in the figure at one end thereof. The insulating barrier 3 is formed on the base 1a between the terminal portions 2 and 2, and is formed on a cutting groove 4 corresponding to the shape of the hook 3a. The hook 3a is integrally fixed to the base 1a by fitting. Notches 5b and 5b are formed on both side walls of the base 1a. Reference numeral 11 denotes a second circuit breaker housing having an outer dimension larger than that of the first circuit breaker housing 1, and includes a base 11a and a cover 11b. Reference numeral 2 denotes a terminal portion, which is provided only on a predetermined side of the base 11a, for example, on the power supply side (the same applies to the load side), to which connection conductors (not shown) are respectively connected. Reference numeral 3 denotes an insulating barrier having a hook 3a having the shape shown in the figure at one end thereof, which is formed on the base 11a between the terminals 2 and 2 and fits the hook 3a into a cut groove 4 corresponding to the shape of the hook 3a. By doing so, it is integrally fixed to the base 11a. Notches 5c, 5c are formed on both side walls of the base 11a. Since the first and second housings 1 and 11 have different outer dimensions, when the side walls of the adjacent bases 1a and 11a are in contact with each other as shown in FIG.
And the notch 5c are shifted by a predetermined dimension, and as a result, the cut groove between the housings 1 and 11 is formed in a shifted state. Reference numeral 12 denotes an insulating barrier, which is an insulating member, and has a first hook 12a at one end as shown in FIG.
In the vicinity of 2a, the second hook 12b and the third hook 12
c is formed. Thin portions 12d, 12d are formed between the first hook portion 12a and the second hook portion 12b and between the second hook portion 12b and the third hook portion 12c so that they can be cut as required. Have been.

Accordingly, the circuit breakers 1, 11 having different external dimensions are provided.
1, the hook 12a at one end of the insulating barrier 12 is fitted into the cutout 5b, the second hook 12b is fitted into the cutout 5c, and the insulating barrier 3 is cut into a groove as shown in FIG. 4, the insulating barrier 3 is integrally fixed to the housings 1 and 11, respectively.
Further, an insulating barrier 12 is integrally fixed between the housings 1 and 11, and each breaker is arranged via the insulating barriers 3 and 12, respectively. Here, the fact that the insulating barriers 3 and 12 are integrally fixed means that the insulating barriers 3 and 12 do not move in any of the extending direction of the connection conductor connected to the terminal portion 2 and the direction opposite to this direction. That's what it means.

(Second Embodiment) A second embodiment will be described with reference to FIG. 3, the insulating barrier 13 has a first hook 13a at one end, a second hook 13b near the first hook 13a, and a second hook 1b.
A third hook 13c is formed in the vicinity of 3b, and is required between the first hook 13a and the second hook 13b and between the second hook 13b and the third hook 13c. The thin portions 13d, 13d are formed so that they can be cut according to. In addition, thin portions 13d, 13d are formed at distances of dimensions a and b, respectively, from the other end of the insulating barrier 13 opposite to the first hook 13a. By doing so, the protrusions of the insulating barrier 13 can be made equal by cutting the thin portions 13d, 13d as required, and the overall size of the circuit breaker can be reduced. Note that the number of the thin portions 13d may be appropriately provided as needed. In this way, the dimensions a and b are respectively measured from the other end opposite to the first hook 13a provided at one end of the insulating barrier 13.
By forming the thin portions 13d, 13d at distant places, for example, as shown in FIG.
When the 1s are arranged, the protruding length of the insulating barrier can be made equal by appropriately cutting the thin portion, and the insulating barrier can be used without changing to another insulating barrier.

[0012]

As is clear from the above description, according to the circuit breaker insulating device of the first aspect, the insulating member can be easily fixed to the side walls of the plurality of circuit breakers having different external dimensions, and each of the insulating members can be individually fixed. The insulation between the connection conductors connected to the provided terminal portions can be sufficiently increased, and the mounting area can be reduced.

According to the insulating device for a circuit breaker according to the second and third aspects, it is necessary to replace the insulating member when arranging circuit breakers having different external dimensions by appropriately cutting the insulating member at the thin portion. Not something. According to the insulating device for a circuit breaker according to the fourth aspect, all of the protruding lengths of the insulating members can be made uniform and the mounting area can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing an entire configuration of an embodiment of the present invention;

FIG. 2 is a detailed view of an insulating member,

FIG. 3 is a detailed view of another insulating member,

FIG. 4 is a schematic diagram showing the overall configuration of another embodiment of the present invention;

FIG. 5 is a diagram corresponding to FIG. 1 showing a conventional example,

FIG. 6 is a diagram corresponding to FIG. 1 showing a conventional example,

[Explanation of symbols]

1, 11, 21 ... housing, 1a, 11a, 2
1a: Base, 2: Terminal part, 3
... Insulation barrier, 5b, 5c ... Notch, 12, 13 ... Insulation member, 12a, 13a ... First hook, 12b, 1
3b: second hook, 12c, 13c: third hook,
12d, 13d: Thin portion.

Continued on the front page (72) Inventor, Yukinori Somegawa 2121, Nao, Asahimachi, Mie-gun, Mie Prefecture Inside the Mie Plant, Toshiba Corporation (72) Inventor Kazuo Kuwamura, 2121, Ozai, Oaza, Asahimachi, Mie-gun, Mie Prefecture Inside the Toshiba Mie Plant (72) Inventor Takashi Araki 2121, Ozai, Asahi-machi, Mie-gun, Mie Prefecture Inside the Toshiba Mie Plant (72) Inventor Eiichi Yonezu, 2121, Nagoya, Asahi-cho, Mie-gun, Mie Prefecture F-term in Toshiba Mie factory (reference) 5G027 AA08 AA28 DA06 5G030 EA05 XX12 YY01

Claims (4)

[Claims] 1. An arrangement of the first and second circuit breaker housings connected to terminals provided on respective predetermined sides of adjacently arranged first and second circuit breaker housings. A pair of connection conductors extending substantially in parallel to the direction, wherein an engaging portion provided on each of the terminal portions on a side wall surface to which the circuit breaker housing is joined is fitted to the engaging portion. And an insulating member having a plurality of hooks. 2. The insulation device for a circuit breaker according to claim 1, wherein the insulation member has a thin portion. 3. The insulation device for a circuit breaker according to claim 2, wherein the thin portion is provided between each of the plurality of hook portions. 4. The insulation device for a circuit breaker according to claim 2, wherein a predetermined number of the thin portions are provided at the other end of the insulating member.