KR200407500Y1 - Disconnect contacts of draw-out air circuit breakers - Google Patents

Abstract

The present invention relates to a disconnection contact of a drawer type air circuit breaker, and in particular, the cover is coupled to the upper and lower sides of the frame to form an 'I'-shaped structure, and a plurality of contact receiving plates are arranged on both sides of the frame at regular intervals. The upper and lower ends of each contact receiving plate form a movable contact held by the spring, but the movable contact on one side is fixed and supported as a supporter to be used as a fixed part to which the fixing member is fitted and fixed, and the other movable contact is the By forming an insert groove on the opposite surface and inserting a holder into the insert groove, it is configured to be used as a movable part that is allowed to be inserted when the terminal part of the movable part is inserted, so that the breaker has a fixed part and a fixed part Can be divided into operable parts, and the main parts are assembled in the withdrawable operation part. It relates to the disconnecting contacts of the draw-out type air circuit breaker to facilitate maintenance, modification, and check of the major components.

Air circuit breaker, disconnecting contact, movable contact, contact receiving plate, fixed part, movable part,

Description

Isolating contact unit for draw-out type air circuit breaker}

1 is a perspective view showing the disconnection contact of the pull-out air circuit breaker of the present invention.

Figure 2 is a side view showing the disconnection contact of the pull-out air circuit breaker of the present invention.

3 is a view showing an operating state of the present invention.

* Description of the symbols for the main parts of the drawings *

1: cover, 2: frame,

3: contact receiving plate, 4: movable contact,

5: insert groove, 6: holder,

7: tanji spring, 8: supporter,

9: fixing member, 10: movable part,

11: terminal

The present invention relates to the disconnection contact of the drawer type air circuit breaker. In particular, the breaker can be divided into the fixed part and the movable part which can be pulled in and out. A disconnection contact of a drawer type air circuit breaker for easy inspection.

The breaker for the transmission line and the power receiver of the transmission line plays the most important role. Especially when the voltage is high and the capacity of the power supply is high, the current at the time of failure is very large and it can be opened and closed reliably. A circuit breaker that doesn't get much simpler.

In order to cut off the electric current, the fixed contactor and the movable contactor are installed so that they are normally in close contact with each other and current flows.In the case of a fault occurring somewhere in the line, when a large current flows, the arc arcing chamber inside the moving part due to the large current interruption. In case of damage, remove the moving part from the fixing part as soon as possible to completely disconnect the current.

In other words, the drawer type breaker is a component which allows the bus and the lower end to be disconnected only when the moving part is separated from the bus, so that only the moving part can be safely replaced or repaired, and then the moving part is inserted into the fixing part to enable normal use.

In other words, if the entire breaker is fixed to the busbar like a fixed type, the whole breaker must be disconnected from the busbar in the event of an accident, while the drawer-type breaker such as the present invention can be repaired or replaced by removing only the movable part side. Is to be made easily.

That is, the present invention combines the cover to the upper and lower sides of the frame to form a 'I' shaped structure, and arranged a plurality of contact receiving plates on both sides of the frame at regular intervals, between the upper and lower ends between each contact receiving plate The movable contact, which is supported by the tangier spring, is formed, but the movable contact of one side is fixedly supported as a supporter to be used as a fixed part to which the fixing member is inserted and fixed, and the movable contact of the other side forms an insert groove on the opposite surface and the insert By inserting the holder into the groove, the breaker can be divided into the fixed part and the operable part with the draw-out operation. The parts are assembled to the draw-out operation part, so it is easy to maintain, modify and inspect the main parts. And the providing the disconnecting contacts of the draw-out type air circuit breaker for the purpose.

The present invention for achieving the above object,

According to claim 1,

In the disconnection contact of the air circuit breaker,

It consists of a fixed part to which the fixing member is fitted and fixed and a movable part which is inserted and mounted as necessary, the terminal part of the movable part,

The movable portion is characterized in that the movable contact of the conductor is constructed by holding a finger spring.

According to claim 2,

The cover is coupled to the upper and lower sides of the frame to form an 'I'-shaped structure, and a plurality of contact receiving plates are disposed at regular intervals on both sides of the frame, and a plurality of movable contacts are provided between the contact receiving plates. It is characterized by forming a fixed portion and a movable portion by combining.

According to claim 3,

The fixing portion is characterized in that the upper and lower ends of the contact receiving plate is coupled to the plurality of movable contacts carried by the tangy spring, and the supporter is inserted between the movable contacts to be fixed to the fixing member is fitted.

According to claim 4,

The movable portion is coupled to the upper and lower ends of the contact receiving plate by inserting a plurality of movable contacts supported by the spring finger, and insert grooves are formed on the opposite surface of the movable contact, the gap between the movable contact and the movable contact in the insert groove Characterized in that configured by inserting a holder to limit the.

Hereinafter, a preferred embodiment of the present invention with reference to the accompanying drawings, Figures 1 to 3 as follows.

Reference numeral 2 denotes a frame installed in the vertical direction, and combines the cover 1 of the flat plate shape on the upper and lower sides of the frame 2 to form a 'I' shaped structure as a whole.

Then, a plurality of contact receiving plates 3 are arranged on both sides of the frame 2, respectively, and a fixing part A on which the fixing members 9 are fitted and fixed on both sides of the frame 2, respectively. The terminal portion 11 of the operable part 10 is inserted to form a movable portion B to be engaged.

The fixed portion (A) is a fixed member 9 (fixed part) is fixedly coupled,

A plurality of movable contacts 4a are inserted between upper and lower portions of the contact receiving plate 3 so as to be located on one side of the frame 2, and the state supported by the cover 1 on the upper and lower sides of the movable contact 4a. An elastic force of the tangent spring 7 pressurizes the movable contact 4a, and the supporter 8 is sandwiched between the movable contacts 4a so that the movable contact 4a is fixed. Keep it open at intervals.

In this state, the fixing member 9 is sandwiched between the movable contacts 4a of the fixing portion A to be fixedly coupled.

On the other hand, the movable portion (B) is a terminal portion 11 of the operable part 10 is inserted and coupled, a plurality of movable each of the upper and lower portions between the contact receiving plate (3) to be located on the other side of the frame (2) The contact 4b is inserted, and the spring force 7 of the state supported by the cover 1 is held on the upper and lower sides of the movable contact 4b so that the elastic force of the tangent spring 7 pressurizes the movable contact 4b. Do it.

Then, insert grooves 5 of a predetermined depth are formed in opposing surfaces of the movable contact 4b, and a holder 6 of a predetermined size is inserted into the insert groove 5, even after the holder 6 is fitted. Allow a certain space to remain in the insert groove (5) so that the movable contact (4b) can be retracted until the holder (6) and the insert groove (5) is completely in close contact.

Referring to the operation and effects of the present invention configured as described above are as follows.

As shown in FIG. 3, when the movable member 10 which is movable in the state in which the fixing member 9 is fitted and coupled to the movable contact 4a of the fixing portion A moves toward the movable portion B, the operable component The terminal part 11 of 10 enters between the movable contacts 4b of the movable part B. As shown in FIG.

When the terminal portion 11 is gradually inserted, the movable contact portion 4b of the movable portion B opens apart from the elastic force of the tangent spring 7, and the terminal portion 11 of the movable part 10 moves to the movable portion B. It is completely connected to the movable contact 4b.

According to the disconnection contact of the present invention, which operates as described above, the terminal part 11 of the movable part is inserted into the movable contact 4b of the movable part B, and thus can be selectively used. In this case, the parts can be disassembled for repair and maintenance.

As described above, the present invention combines the cover to the upper and lower sides of the frame to form an 'I' shaped structure, and a plurality of contact receiving plates are arranged on both sides of the frame at regular intervals, and each of the contact receiving plates The upper and lower ends are formed with a movable contact supported by the spring finger, but the movable contact on one side is fixedly supported as a supporter to be used as a fixing part to which the fixing member is inserted and fixed, and the movable contact on the other side forms an insert groove on the opposite surface. And inserting the holder into the insert groove to be used as a movable part to allow insertion when the terminal part of the movable part is inserted, so that the breaker is divided into a fixed part and an operable part in which the fixed part is pulled out. Main parts are assembled into the draw-out operation part, And this can be expected to check the effect of providing the disconnecting contacts of the draw-out type air circuit breaker to facilitate.

Claims (4)

In the disconnection contact of the air circuit breaker, It consists of a fixed part to which the fixing member is fitted and fixed and a movable part which is inserted and mounted as necessary, the terminal part of the movable part, The movable part is a disconnection contact of a pull-out air circuit breaker, characterized in that the conductor is made by holding the movable contact with a finger spring. The method of claim 1, The cover is coupled to the upper and lower sides of the frame to form an 'I'-shaped structure, and a plurality of contact receiving plates are disposed at regular intervals on both sides of the frame, and a plurality of movable contacts are provided between the contact receiving plates. Disconnection contact of the pull-out air circuit breaker, characterized in that the fixed portion and the movable portion formed by combining. The method of claim 2, The fixed part is a pull-out type air circuit breaker characterized in that the upper and lower ends of the contact receiving plate by engaging a plurality of movable contacts supported by the spring finger, and the supporter is inserted between the movable contacts so that the fixing member is fitted and fixed. Disconnect contact of. The method of claim 3, wherein The movable portion is coupled to the upper and lower ends of the contact receiving plate by inserting a plurality of movable contacts supported by the spring finger, and insert grooves are formed on the opposite surface of the movable contact, the gap between the movable contact and the movable contact in the insert groove Disconnection contact of the pull-out air circuit breaker, characterized in that configured by inserting a holder to limit the.

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