KR20170002670U - Molded Case Circuit Breaker - Google Patents

Molded Case Circuit Breaker Download PDF

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Publication number
KR20170002670U
KR20170002670U KR2020160000285U KR20160000285U KR20170002670U KR 20170002670 U KR20170002670 U KR 20170002670U KR 2020160000285 U KR2020160000285 U KR 2020160000285U KR 20160000285 U KR20160000285 U KR 20160000285U KR 20170002670 U KR20170002670 U KR 20170002670U
Authority
KR
South Korea
Prior art keywords
circuit breaker
barrier
side wall
insulating barrier
barrier plate
Prior art date
Application number
KR2020160000285U
Other languages
Korean (ko)
Inventor
박민우
Original Assignee
엘에스산전 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘에스산전 주식회사 filed Critical 엘에스산전 주식회사
Priority to KR2020160000285U priority Critical patent/KR20170002670U/en
Publication of KR20170002670U publication Critical patent/KR20170002670U/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/025—Constructional details of housings or casings not concerning the mounting or assembly of the different internal parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H01H71/1018—Interconnected mechanisms with only external interconnections

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  • Breakers (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring breaker, and more particularly, to a wiring breaker provided with an insulation barrier that stably maintains a coupled state regardless of a deformation of a mold case.
The circuit breaker according to one embodiment of the present invention is a circuit breaker including an insulating barrier formed on a sidewall of a terminal portion of a mold case and provided on a sidewall of the terminal portion, the insulating barrier comprising: a barrier plate formed of a flat plate; And a fixing part protruding from one side of the barrier plate and surrounding an upper portion of the side wall of the terminal part.

Description

{Molded Case Circuit Breaker}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring breaker, and more particularly, to a wiring breaker provided with an insulation barrier that stably maintains a coupled state regardless of a deformation of a mold case.

In general, a circuit breaker for a wiring breaker is installed in a switchboard mainly in a power distribution facility of a factory or a building, and serves as an opening / closing device that supplies or cuts off the power to the load side in a no-load state. , It serves as a circuit breaker which cuts off the power supplied from the power source side to the load side in order to protect the electric wire and the load side device of the converter.

The circuit breaker for wiring is a circuit breaker which also serves as an overload and a short circuit protection. The circuit breaker is housed in a mold case. A plurality of circuit breakers can be connected in parallel in consideration of electric capacity. At this time, an insulation barrier is used for inter-phase insulation and inter-product insulation.

1 shows a circuit breaker connected in parallel, and in Fig. 2 an insulating barrier is shown.

The first interconnection breaker 1 and the second interconnection breaker 6 are installed side by side. At this time, the mold case of the first wiring breaker 1 and the mold case of the second wiring breaker 6 are provided with insulating barrier mounting grooves 3 and 8 on the side walls of the terminal portions 2 and 7, respectively. At this time, the insulating barrier mounting grooves 3 and 8 formed in the inter-phase sidewalls 4 and 9 are formed as circular grooves so that the insulating barrier 5 can be directly inserted. On the other hand, the insulating barrier mounting grooves 3a and 8a formed in the side walls 4a and 9a between the products are formed as semicircular grooves and the two products are placed side by side so that the insulating barrier 5 can be mounted.

The insulating barrier 5 includes a plate 5a formed to have a predetermined width, a circular columnar portion 5b formed at one side of the plate 5a, a latching ring 5c formed at the upper portion of the circular columnar portion 5b, ) And the like. The circular columnar portion 5b is fitted in the insulating barrier mounting grooves 3 and 8 and the latching ring 5c is pressed and fixed in the insulating barrier mounting grooves 3 and 8.

Incidentally, in the circuit breaker according to the prior art, the mold case may be deformed during long-term use. Fig. 3 shows a state in which the mold case is deformed according to long-term use.

If the circuit breaker is used for a long time, the molded case may be shrunk and deformed. At this time, the deformation of the inter-phase side wall 4 is not large, but the deformation of the inter-product side wall 4a may be relatively large. Thereby, there is a possibility that the insulating barriers 5 provided on the side walls 4a between the products are separated.

Since the circuit breaker may be more susceptible to breakage of insulation between products than inter-phase insulation, such a deviation of the insulation barrier 5 may cause a great problem in insulation performance.

The object of the present invention is to provide a circuit breaker equipped with an insulation barrier capable of stably maintaining a coupled state regardless of a deformation of a mold case.

The circuit breaker according to one embodiment of the present invention is a circuit breaker including an insulating barrier formed on a sidewall of a terminal portion of a mold case and provided on a sidewall of the terminal portion, the insulating barrier comprising: a barrier plate formed of a flat plate; And a fixing part protruding from one side of the barrier plate and surrounding an upper portion of the side wall of the terminal part.

In this case, a mounting groove for mounting the insulating barrier is formed on the sidewall of the terminal portion, and a column portion which can be inserted into the mounting groove is formed at one side of the barrier plate.

The fixing portion may include: a first extending portion protruding from a top end of the column portion in a direction perpendicular to the barrier plate; A second extension extending downwardly from the first extension; And a latching portion extending and extending from the second extending portion toward the barrier plate.

In addition, the fixing portion is independently connected to the side wall of the product formed on the outer side of the side wall of the terminal portion.

Further, the fixing portion is provided in a pair symmetrically formed on both sides of the barrier plate.

According to the wiring breaker according to one embodiment of the present invention, there is an effect of stably maintaining the engagement state regardless of the deformation of the mold case. Thereby, there is an effect that the insulation performance between products is maintained without being destroyed.

1 is a plan view of a conventional circuit breaker connected in parallel.
2 is an insulating barrier applied to a conventional circuit breaker.
3 shows a deformed state of a terminal portion of a circuit breaker according to the prior art.
4 is a plan view of a circuit breaker according to an embodiment of the present invention connected in parallel.
5 is an insulating barrier applied to a circuit breaker according to an embodiment of the present invention.
6 is a perspective view of a circuit breaker according to another embodiment of the present invention.
7 is an insulating barrier applied to a circuit breaker according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, which are intended to illustrate the present invention in such a manner that a person skilled in the art can easily carry out the present invention. And does not mean that the technical idea and category of the design is limited.

FIG. 4 is a plan view of a circuit breaker according to an embodiment of the present invention connected in parallel, and FIG. 5 is an insulation barrier applied to a circuit breaker according to an embodiment of the present invention. The wiring breaker according to one embodiment of the present invention will now be described in detail with reference to the drawings.

The circuit breaker according to one embodiment of the present invention is characterized in that the terminal side walls 13a and 13b of the mold case 11 are formed and the circuit breaker 30 including the insulating barrier 30 provided on the terminal side walls 13a and 13b 10), wherein the insulating barrier (30) comprises: a barrier plate (31) formed of a flat plate; And a fixing portion 35 protruding from one side of the barrier plate 31 and surrounding the upper portions of the terminal portion side walls 13a and 13b.

Two breakers for wiring are provided. This will be referred to as a first wiring breaker 10 and a second wiring breaker 20. Here, for convenience of the description and readability, the circuit breaker 10 is simply referred to as a first circuit breaker 10.

The enclosure of the circuit breaker 10 may be composed of a mold case 11 and a cover 12. Here, the mold case 11 may be divided into an upper case and a lower case.

The mold case 11 is provided with terminal side walls 13a and 13b. The terminal portion side walls 13a and 13b may be divided into an upper side wall 13a formed between the upper and lower surfaces and an interproduct side wall 13b formed between the upper and lower surfaces. The inter-phase sidewall 13a may be formed in a symmetrical shape, and the inter-product sidewall 13b may be formed in an asymmetric shape. The step portion 14 may be formed on each of the inter-phase side wall 13a and the inter-product side wall 13b. That is, the upper wall of the step portion 14 can be formed to be two inches larger than the lower wall. Mounting grooves 15a and 15b capable of mounting the insulating barrier 30 along the longitudinal direction may be formed on the terminal portion side walls 13a and 13b.

The insulating barrier 30 may be largely constituted by the barrier plate 31 and the fixing portion 35. The barrier plate 31 is formed as a flat plate. The barrier plate 31 may be made of injection molded synthetic resin. The barrier plate 31 may have a predetermined area and have an insulating property between phases or products.

A column portion 32 that can be inserted into the mounting grooves 15a and 15b of the terminal portion side walls 13a and 13b is formed on one side portion of the barrier plate 31. [ The lower portion of the post 32 may be pointed to facilitate insertion.

The fixing portion 35 is provided on one side of the barrier plate 31. [ Specifically, the fixing portion 35 may be provided on the column portion 32. [ The fixing portion 35 may be formed in an annular shape and coupled to the terminal portion side walls 13a and 13b.

The fixing portion 35 includes a first extending portion 36 protruding from the upper end of the column portion 32 in the horizontal direction, a second extending portion 37 extending downward from the first extending portion 36, And a locking portion 38 that extends from the second extending portion 37 in the direction of the barrier plate 31.

The first extending portion 36 extends horizontally from the upper end of the column portion 32 in a direction perpendicular to the barrier plate 31. The first extension 36 may protrude to a predetermined length. The fixing portion 35 is spaced apart from the barrier plate 31 by a predetermined distance by the first extension portion 36.

The second extending portion 37 extends vertically downward from the first extending portion 36. The second extension portion 37 may extend to a position where the step portion 14 is located.

The latching part 38 may be bent and extended from the lower end of the second extending part 37 in the direction in which the barrier plate 31 is formed. The latching portion 38 is fitted into the step portion 14 so that the insulating barrier 30 is fixed to the circuit breaker 10.

The insulating barriers 30 are formed in such a manner that the column portions 32 are fitted into the mounting grooves 15a and 15b of the circuit breaker 10 and the fixing portions 35 surround the terminal portion side walls 13a and 13b, And is stably coupled. Thus, the insulating barrier 30 can be stably coupled to the terminal portion side walls 13a, 13b of the circuit breaker 10 without causing up, down, left, and right rocking.

At this time, not only the insulating barrier 30 can be coupled to the inter-phase sidewall 13a but also can be installed solely in the inter-product sidewall 13b. That is, even if two products (the first wiring breaker 10 and the second wiring breaker 20) are not connected to each other, they can be installed solely in one wiring breaker 10.

Fig. 4 shows the use state of the insulating barrier 30 when two wiring breaker products are connected in parallel. The column portion 32 of the insulating barrier 30 is engaged while being engaged with the mounting recesses 15b and 25b of the first wiring breaker 10 and the second wiring breaker 20. On the other hand, the fixing portion 35 of the insulating barrier 30 is fixed to the inter-product side wall 13b of the first wiring breaker 10.

6 shows the use state of the insulating barrier 30 when two wiring breaker products are spaced apart from each other by a predetermined distance. The pillar portion 32 of the insulating barrier 30 is fitted only in the first wiring breaker 10. On the other hand, the fixing portion 35 of the insulating barrier 30 is fixed to the inter-product side wall 13b of the first wiring breaker 10. Even if the first wiring breaker 10 and the second wiring breaker 20 are installed so as to be spaced apart from each other depending on the product insulation performance or installation requirement, As shown in FIG.

According to the wiring breaker according to one embodiment of the present invention, there is an effect of stably maintaining the engagement state regardless of the deformation of the mold case. Thereby, there is an effect that the insulation performance between products is maintained without being destroyed.

An insulating barrier 130 according to another embodiment of the present invention is shown in Fig. In this embodiment, the fixing portions 135 are provided in a pair in a ring shape symmetrically formed on both sides of the barrier plate 131. In this case, it can be stably bonded to two products placed in contact with each other in parallel, and it is also possible to prevent deformation of the side wall of the terminal portion even when used for a long time.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the technical idea of the present invention, and the scope of technical idea of the present invention is not limited by these embodiments. That is, the scope of protection of the present invention should be construed according to the following claims, and all technical ideas which are within the scope of the same should be interpreted as being included in the scope of the present invention.

10 First circuit breaker 11 Mold case
12 Cover 13a Interphase side wall
13b Side wall between products 14 step
15a, 15b mounting groove 20 second wiring breaker
30 Insulation Barrier 31 Barrier Plate
32 column portion 35 fixed portion
36 first extension part 37 second extension part
38,

Claims (5)

A circuit breaker comprising a terminal side wall of a mold case and an insulating barrier provided on a side wall of the terminal portion,
Wherein the insulating barrier comprises:
A barrier plate formed in a flat plate; And
And a fixing part protruding from one side of the barrier plate and surrounding an upper portion of the side wall of the terminal part. The circuit breaker according to claim 1, wherein a mounting groove capable of mounting the insulating barrier is formed on a side wall of the terminal portion, and a column portion that can be inserted into the mounting groove is formed at one side of the barrier plate. The apparatus according to claim 2,
A first extending portion protruding from a top end of the column portion in a direction perpendicular to the barrier plate;
A second extension extending downwardly from the first extension; And
And a latching portion extending and extending from the second extending portion toward the barrier plate. The circuit breaker according to claim 1, wherein the fixing portion is independently connected to a side wall of the product formed on the outer side of the terminal portion side wall. The circuit breaker according to claim 1, wherein the fixing portions are provided in a pair symmetrically formed on both sides of the barrier plate.
KR2020160000285U 2016-01-18 2016-01-18 Molded Case Circuit Breaker KR20170002670U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020160000285U KR20170002670U (en) 2016-01-18 2016-01-18 Molded Case Circuit Breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020160000285U KR20170002670U (en) 2016-01-18 2016-01-18 Molded Case Circuit Breaker

Publications (1)

Publication Number Publication Date
KR20170002670U true KR20170002670U (en) 2017-07-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR2020160000285U KR20170002670U (en) 2016-01-18 2016-01-18 Molded Case Circuit Breaker

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KR (1) KR20170002670U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220062956A (en) * 2020-11-09 2022-05-17 엘에스일렉트릭(주) Moled Case Circuit Breaker having Insulation Barrier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220062956A (en) * 2020-11-09 2022-05-17 엘에스일렉트릭(주) Moled Case Circuit Breaker having Insulation Barrier

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