JP2001118485A - Circuit breaker for primary transmission - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a circuit breaker for primary transmission that facilitates the process of setting and connecting lines without working the electricity distribution console. SOLUTION: The casing 2 has a shoulder portion 5 formed in the upper and lower ends of the front side narrower than the backside 2d. Mounted on the center portion is mounted an operational handle 6. The surfaces corresponding to the shoulders 5 are provided with primary connection terminal 3 and secondary connection terminal 4. A recessed portion 7 is formed in the upper surface 2b and lower surface 2c of the casing 2 to receive the branch bar 9 of the distribution console.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a primary feeder circuit breaker for branch wiring without a main breaker, and more particularly, to a primary feeder circuit breaker of a compatible small circuit breaker size. About.

[0002]

2. Description of the Related Art A circuit breaker for a primary feed that branches and wirings without passing through a main breaker secures an emergency power source because power transmission is not interrupted even when the main breaker operates to cut off the circuit. It is used as a circuit. In this case, a conventional circuit breaker is conventionally used, and the primary feed circuit breaker 12 is connected to the secondary side of the main breaker 11 as shown in a front view inside the distribution board of FIG. 8 or a space 13 dedicated to primary feed is provided in the distribution board as shown in the front view of the interior of the distribution board of FIG. A bar 14 (14a, 14b, 14c) is provided, and a branch circuit is provided adjacent to the main bar 14.

[0003]

However, since the primary feed circuit breaker is directly wired from the primary side of the main breaker 11, it is adjacent to another circuit breaker 8 via the main breaker 11 as in the former case. In the case where the main bar 10 is installed, it is not connected to a charged portion such as the main bar 10 (10a, 10b, 10c) disposed in the distribution board. In order to secure the installation space, for example, as shown in FIGS. 7A and 7B, the end portion (hatched portion) 15 of the charging unit base and FIGS. 7C and 7D
(D) of the main bar 10 which is a charging part
10e is cut off. In addition, FIG.
(B) is an explanatory view showing a distribution board charging unit, (a) before disconnection,
(B) shows the state after cutting. (C) and (d) show only the main bar.

[0004] For this reason, it is necessary to temporarily remove the circuit breaker which has been previously installed in order to process the charged part, and a special tool is required to cut off the circuit breaker. became. In addition, the processing of the charging section can be performed only in a limited place such as the end of the main bar 10, and cannot be used when a large number of primary feed circuits must be provided. Furthermore, the connection work on the primary side has to be performed with the circuit breaker removed since the charging part of the distribution board is close. In the latter case where a dedicated space is provided, it is easy to provide a large number of primary feed circuits, but a large distribution board must be used to provide a branch circuit.

[0005] In view of the above problems, the present invention can be installed adjacent to another circuit breaker via a main breaker without processing the charging section, and the primary feed circuit breaker can be easily connected. The task is to provide

[0006]

According to a first aspect of the present invention, an operation handle for opening and closing a circuit is disposed substantially at the center of the front surface of a casing, and the operation handle is disposed adjacent to the operation direction of the operation handle. A primary side connection terminal connected to the power supply side on one of the upper and lower sides, and a secondary feed circuit breaker provided on the other side with a secondary side connection terminal connected to the load side, wherein the front side upper and lower ends of the front side of the casing The casing is formed by dropping a step portion, the front surface of the casing is made narrower than the rear surface, and connection terminals on both the primary side and the secondary side are formed inside opposed wall surfaces of the step portion.

According to a second aspect of the present invention, in the first aspect of the invention, at least one of the upper surface and the lower surface of the casing is provided with:
A concave portion into which a copper bar on the distribution board side can be inserted is provided.

According to a third aspect of the present invention, an operation handle for opening and closing a circuit is disposed substantially at the center of a front surface of a casing, and a primary side connection is connected to a power supply side at one of an upper portion and a lower portion in the operation direction of the operation handle. A terminal, a primary feed circuit breaker provided with a secondary connection terminal connected to the load side on the other side, wherein at least one of the upper surface or the lower surface of the casing has an insertion recess capable of inserting a copper bar of a distribution board. The primary and secondary connection terminals are formed substantially at the upper and lower ends of the front surface, which are provided in front of the connection terminals.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1A shows an example of a primary feed circuit breaker according to the present invention, 2 is a casing formed with compatible dimensions which are the dimensions of a general small circuit breaker, and 3 is connected to a power supply side. Primary connection terminal
Reference numeral 4 denotes a secondary connection terminal connected to the load side, and reference numeral 6 denotes an operation handle for opening and closing the circuit.

The casing 2 has a stepped portion 5 formed at the upper and lower ends of the front side, and the vertical direction of the front surface 2a is formed narrower than the rear surface 2d. The operation handle 6 is provided at the center of the front surface 2a of the casing 2 and is formed so as to be opened and closed by rotating in the vertical direction. The primary connection terminal 3 and the secondary connection terminal 4 On the opposing surface of the portion 5, two screw-type up terminals are formed at right and left.

The upper surface 2b and the lower surface 2 of the casing 2
FIG. 1 (b) shows the positions corresponding to the connection terminals 3 and 4 in FIG.
As shown in the side view of FIG. 1, two concave portions 7 are provided at left and right portions at positions corresponding to the branch bars 9 which are copper bars provided on the distribution board, and the primary feed circuit breaker 1 is disposed inside the distribution board. When installed at the branch circuit forming position, the branch bar 9
Can be installed without processing the branch bar 9. In this way, if the step is formed at a position before the branch bar, the insertion portion of the branch bar can be formed on the upper surface and the lower surface of the casing, so that the installation of the primary feed open circuit breaker and the connection of the wiring can be smoothly performed. Can also be done safely.

The procedure for installing the primary feed circuit breaker on the distribution board is as follows. First, the branch bar 9 of the distribution board is inserted into the concave portion 7 formed on the upper surface 1b or the lower surface 1c, and as shown in FIG. In the same manner as the circuit breaker 8 via the main breaker of the above, the circuit breaker 8 is installed at the branch circuit forming position, and the wiring connection of the connection terminals 3 and 4 may be performed. In this way, the connection terminal is provided at the back of the step, so the connection terminal is located at a position sufficiently distant from the distribution board charging part, and even after the circuit breaker is installed, it interferes with the charging part such as the main bar. The wiring work can be easily performed without performing. In addition, since the branch bar is inserted into the recess and is hidden, it does not come into contact with the primary side wiring. FIG.
Indicates the inside of a home switchboard, and 10a, 10b, 10c
Is a main bar, and 11 is a main breaker.

Therefore, the wiring work can be easily performed even after the primary feed circuit breaker is installed, and there is no need to process a copper bar such as a branch bar. Is not limited. In addition, since it can be installed at an arbitrary position of the branch circuit formation position, the number is not limited, and even if the number of installation is large, there is no need to provide a branch circuit dedicated to the primary feed, and it is not necessary to provide a dedicated space.

The shape of the connection terminal need not be the up terminal as described above, but may be a faston terminal as shown in FIG. 3A, or a quick connection terminal as shown in FIG. 3B. It is good. Further, the recess may be formed at least on the primary side, and the shape may be a shape into which a branch bar is inserted. As shown in FIG. 3 (c), the step is lowered to form a U-shaped groove. May be formed. In addition, the height of the connection terminal does not necessarily need to be higher than the main bar. For example, as shown in the explanatory view of FIG. 4, the terminal is formed so as to be inclined, and at least the connection line insertion position is above (front) the main bar. If so, the connection operation can be performed easily and safely without interference with the charging section.

FIG. 8 shows a second embodiment of the present invention,
The connection terminals 3 and 4 on the primary side and the secondary side are formed by raising the conventional terminal and the connection side without the stepped portion, and the concave portion 7 for inserting the copper bar on the distribution board side at the conventional terminal position is formed. I have. By simply raising the height in this way, it is possible to connect the primary feed wiring and the like, and since it has a concave portion, it is not necessary to process the copper bar of the distribution board as in the above embodiment, and a dedicated branch circuit is provided. There is no setting. In this case, since there is no step, a large space for installing components can be taken in the casing, and the primary feed circuit breaker can be formed without largely changing the internal configuration of the conventional circuit breaker.

[0016]

As described in detail above, according to the first aspect of the present invention, the steps are formed by dropping the steps at the upper and lower ends of the casing, and the connection terminals are formed at the back of the steps. At the time of installation, the connection terminal is located at a position away from the main bar, so that the connection operation of the primary feed wiring can be easily performed.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, by inserting the copper bar of the distribution board into the recess, the circuit through the main breaker without processing the charged part. Can be easily installed at the breaker installation position. Therefore, even if there are many primary feed circuits, there is no need to provide a branch circuit dedicated to the primary feed, and it is not necessary to make the distribution board large.

According to the third aspect of the present invention, since it is not necessary to process the copper bar of the distribution board, it can be easily installed without providing a dedicated branch circuit. In addition, a large component installation space can be provided in the casing, and the circuit breaker can be formed without largely changing the internal configuration of the conventional circuit breaker.

[Brief description of the drawings]

FIGS. 1A and 1B show a primary feed circuit breaker showing an example of an embodiment of the present invention, wherein FIG. 1A is a perspective view and FIG. 1B is an explanatory view showing the positions of connection terminals in FIG.

FIG. 2 is an internal front view of the distribution board showing a state where the primary feed circuit breaker of FIG. 1 is installed in the distribution board.

FIG. 3 is a perspective view of a primary feed circuit breaker showing another shape of the terminal portion of FIG. 1;

FIG. 4 is an explanatory view showing another shape of the terminal section of FIG. 1;

FIG. 5 is an internal front view of a distribution board provided with a conventional primary feed circuit breaker.

FIG. 6 is an internal front view showing another embodiment of a distribution board provided with a conventional primary feed circuit breaker.

FIGS. 5A and 5B show a state of processing of a distribution board charging unit, wherein FIG. 5A shows a state before the charging unit base is cut, and FIG.
(C) and (d) show the cutting position of the main bar.

FIG. 8 is a perspective view of a primary feed circuit breaker showing a second embodiment of the present invention.

[Description of Signs] 1 .. Circuit breaker for primary feed, 2 .. Casing, 2a
..The front surface of the casing, 2b
c. bottom of casing, 2d back of casing,
3 Primary connection terminal, 4 Secondary connection terminal, 5
Step, 6 ... operation handle, 7 ... recess.

Claims (3)

[Claims] An operation handle for opening and closing a circuit is disposed substantially at the center of a front surface of a casing, and a primary connection terminal connected to a power supply side at one of an upper portion and a lower portion adjacent to the operation direction of the operation handle, and the other. A primary feed circuit breaker provided with a secondary connection terminal connected to the load side, wherein a step portion is formed by dropping a step into the upper and lower ends on the front side of the casing, the front face of the casing is made narrower than the rear side, and the primary side A circuit breaker for a primary feed, wherein both connection terminals on the secondary side are formed inside opposed wall surfaces of the stepped portion. 2. The circuit breaker for primary feed according to claim 1, wherein a concave portion into which a copper bar of a distribution board can be inserted is provided on at least one of an upper surface and a lower surface of the casing. 3. An operation handle for opening and closing a circuit is disposed substantially at the center of the front surface of the casing, and a primary side connection terminal connected to a power supply side is provided on one of upper and lower sides in the operation direction of the operation handle, and a load is provided on the other side. A primary feed circuit breaker provided with a secondary side connection terminal connected to the side, wherein at least one of an upper surface or a lower surface of the casing is provided with an insertion recess capable of inserting a copper bar of a distribution board, and a front side thereof is provided. A primary feed circuit breaker, wherein the primary and secondary connection terminals are formed substantially at the upper and lower ends of the front surface.