JP2002033038A - Breaker fixing structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide breaker fixing structure capable of attaching or detaching a breaker in simple structure by moving before and behind on a fixing table, and obtaining strong connection structure. SOLUTION: Projections 3a and 3b are installed in the lower parts of a front 1a and a back 1b of the breaker 1, a vertical locking piece 8 for locking the front side projection 3a is integratedly installed in a breaker fixing table 2, and a spring 5 for locking the back side projection 3b is installed. The spring 5 having elasticity is assembled to be inclinable backward to the fixing table 2, tilted by the placing operation of the breaker 1, the vertical locking piece 8 locks the front side projection body 3a by the slide operation to the front, and the spring 5 stands up and locks the back side projection 3b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a breaker mounted on a distribution board.

[0002]

2. Description of the Related Art Conventionally, a breaker is mounted in a distribution board by providing a screw insertion hole in the breaker and fixing the breaker to a breaker mounting base provided in the distribution board by a screw, or as shown in FIG. As described above, the groove 16 is formed in the lower part of the front surface 15a and the rear surface 15b of the breaker 15 having the power supply side or the load side connection terminal, and the hook-shaped engaging member is inserted into the mounting base 17 and locked. A locking claw 18 is protruded, and one of the locking claws is fastened with a screw 19 to be detachably connected,
As shown in FIG. 5B, the breaker 15 is inserted from above by forming one of the locking claws 18a with an elastic member.
It was locked and fixed using elasticity.

[0003] However, fixing with a screw requires time and trouble to tighten the screw, and there is a fear that the screw may be lost and cannot be mounted. Since the structure using the locking claw 18 requires screw tightening work on one of the locking claws,
After all it was troublesome. In addition, since a device using elasticity requires an operation of tilting the breaker 15 when attaching and detaching, excessive stress is applied to the power supply side connection terminal connected to the bus bar (not shown), and the device is deteriorated. In the case where a plurality of breakers 15 are installed adjacent to each other, the removal operation is very troublesome. In addition, the holding force of the elastic member may decrease, and it may not be possible to stably fix the elastic member.

Therefore, as a mounting structure that does not damage the connection terminals of the breaker when attaching and detaching, there is a technique disclosed in Japanese Patent No. 3046797. This is a mounting structure of the plug-in breaker, in which the breaker is connected to the mounting base via a moving jig, and the movable holding jig is attached to the mounting base so as to be able to move forward and backward with respect to the bus bar. The breaker is connected to the bus bar to be connected back and forth so as to be movable back and forth so that the power supply side connection terminal is not degraded during the attaching / detaching operation.

[0005]

However, the above-mentioned patent No. 3
The technology disclosed in Japanese Patent No. 046797 requires a work for mounting the movable jig on the breaker mount and an operation for mounting the breaker on the movable jig when the breaker is mounted on the distribution board, and requires many man-hours. In addition, the process of mounting the breaker on the moving jig could not be done casually due to the fitting point, so it took time to mount it.Because processing of the moving jig and attaching the moving jig to the breaker mounting base The mounting base was also required to be processed, which was costly. In addition, since it is mounted on the mounting base via the movable jig, it has been difficult to achieve a robust connection state.

In view of the above problems, the present invention provides a breaker mounting structure that enables a simple structure to perform the mounting and dismounting operation of the breaker by moving back and forth on a mounting base and obtains a robust connection structure. That is the task.

[0007]

In order to solve the above-mentioned problems, the invention according to claim 1 is characterized in that an engagement portion is provided at both lower end portions of a front surface having a power supply side connection terminal and a rear surface having a load side connection terminal of a breaker. A fixed lock in which a mounting portion for locking the engaging portion and fixing the breaker is provided on the mounting base, and the locking portion is integrally formed with the mounting base for locking the engagement portion on the front side of the breaker. And a movable locking tool that is assembled to the mounting base and locks the rear-side engaging portion by elastic force. The mounting operation of the breaker on the mounting base and the forward movement operation after the mounting are performed. The engaging portion is engaged with the engaging portion to connect the breaker to the mounting base.

According to a second aspect of the present invention, in the first aspect of the present invention, the engaging portions provided on the front surface and the back surface are projections.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 and 2 show an example of a breaker mounting structure according to the present invention. FIG. 1 is an explanatory side view, and FIG. 2 is an enlarged perspective view of a main part. In the figure, 1 is a breaker, 2 is a breaker mount, and the breaker 1 has a cubic projection 3 under the front surface 1a having a power supply connection terminal 4a and the back surface 1b having a load connection terminal 4b.
a, 3b are provided, and the front and rear projections 3a, 3b are locked by locking portions provided on the mounting base, and connect the breakers.

The connecting portion at the rear of the breaker is provided with a U-shaped projection holding portion 5a at the top end and a spring body 5 which is a movable locking member having the rear end locked to the bottom of the distribution board. Side projection 3
b is locked and connected. The spring body 5 is pivotally mounted on a support shaft 6 provided in the mounting base, and causes the projection holding section 5 a to protrude upward from a window 7 formed in the mounting base 2.
“a” has elasticity and can be tilted backward about the support shaft 6. The connecting portion at the front of the breaker is provided with a locking window 8a inside a standing locking piece 8, which is a fixed locking piece formed by stamping out the mounting base 2, and inserting the projection 3a into the locking window 8a. It is connected and fixed.

A procedure for connecting the thus formed connecting portions will be described with reference to FIG. FIG. 3 is an explanatory side view for explaining the connecting operation. First, the breaker 1 is placed on the mounting base 2 as shown in FIG. However, the mounting operation is performed such that the rear bottom surface of the breaker abuts on the projection holding portion 5a of the spring body 5. By arranging the breaker 1 in this manner and placing the breaker 1 on the mounting table 2, the projection holding portion 5 a is inclined backward and enters the mounting table 2 as shown in FIG. 1 is horizontally arranged on the connecting stand 2.

Then, as shown in FIG.
To slide forward. By this operation, the protrusion 3a of the front face 1a of the breaker is inserted into the locking window 8a of the standing locking piece 8 and locked, and the rear spring body 5 jumps up.
The projection holding portion 5a locks the rear projection 3b. As a result, the breaker 1 is mounted on the mounting base 2. Further, by sliding forward, the power supply side connection terminal 4a inserts a corresponding bus bar (not shown) to perform a connecting operation.
The detaching operation can be removed by a simple operation by releasing the lock by tilting the protrusion holding portion 5a backward with a driver or the like and pulling out the breaker 1 backward.

As described above, the breaker can be mounted on the mounting base by a simple operation of only the mounting operation of the breaker and the sliding operation forward, and since it is directly mounted on the mounting base, a robust mounting state is obtained. be able to. In addition, since the connection can be performed with only a simple operation of the placing operation in the vertical direction and the forward moving operation in the horizontal direction without the need for a high-precision alignment operation, the assembly process can be easily automated. This makes it possible to reduce the cost of the assembling work. Further, since the breaker does not need to be inclined at the time of attaching / detaching operation, no stress is applied to the connection terminal portion when the power supply side connection terminal is connected to or removed from the bus bar, and the terminal does not deteriorate, Since a special process such as a fitting portion is not required for the mounting base, it can be produced at low cost.

Next, another embodiment of the present invention will be described with reference to FIG. FIG. 4A is a perspective view of a rear connecting portion, and FIG. 4B is a side view. A connecting portion at a front portion of a breaker (not shown) is a vertical locking piece formed on the mounting base 2 in the same manner as in the above embodiment. 8
The front side projection 3a is locked and connected to the locking window 8a. In the drawing, reference numeral 11 denotes a movable holding body, which is urged forward by a metal spring 12 from a rear wall surface of the mounting table 2 and is installed in the mounting table, and a holding recess 11a formed at an upper portion is urged by the metal spring. The breaker 1 is connected to the mounting base 2 while holding the rear-side projection 3b and the front-side connection portion.

In the breaker mounting operation in this case, first, the rear of the breaker 1 is obliquely lowered, and the rear projection 3b is inserted into the holding recess 11a. Then, the inserted rear projection 3
The movable holding body 11 is moved backward by utilizing the locking action of b. With this operation, the front side projection 3a is set upright and the locking piece 8 is set.
Then, the oblique breaker is horizontally moved and slid forward, and the front projection 3a is inserted into the upright engagement piece 8 to lock the front side to the mounting base 2. .
In this way, the projections 3a and 3b are locked, and the breaker 1
Is fixed. The removal operation may be performed in the reverse of the above operation. First, the breaker 1 is slid backward to release the engagement of the front side projection 3a, and the breaker 1 is released.
May be lifted up and inclined to pull out the rear-side projection 3b from the movable holder.

As described above, the rear connecting portion of the mounting base may be configured to move back and forth, and the mounting state may be such that the breaker is only urged forward, and the breaker is inclined when the rear projection is locked. However, when the power supply side connection terminal is inserted into and removed from the bus bar, the breaker is not inclined, so that the connection terminal is not deteriorated. Also,
There is no need to use a tool such as a screwdriver when removing. Further, in the case of this connection shape, the breaker side engaging portion may be a concave groove, and the upright engaging piece and the engaging portion of the moving holder may be formed as tongue pieces which are inserted and locked in the concave groove. .

[0017]

As described in detail above, according to the present invention,
The breaker can be mounted on the mounting base with a simple operation of only the breaker mounting operation and the forward movement operation, and the power supply side connection terminal is connected to the bus bar because there is no need to tilt the breaker when attaching and detaching operation Alternatively, no stress is applied to the connection terminal at the time of removal, and the terminal does not deteriorate. In addition, since a special process such as a fitting portion is not required for the mounting base, it can be produced at low cost. Furthermore, since it is directly mounted on the mounting base, a robust mounting state can be obtained.Since it is connected only by a simple operation of vertical mounting operation and horizontal forward movement, it is easy to automate the assembly process. It is possible to cope with it, and it is also possible to reduce the cost of the assembling work.

[Brief description of the drawings]

FIG. 1 is an explanatory side view of a breaker and a mounting table showing an example of an embodiment of a breaker mounting structure according to the present invention.

FIGS. 2A and 2B are perspective views of a rear connecting portion of FIG. 1, wherein FIG. 2A shows a rear connecting portion and FIG. 2B shows a front connecting portion.

FIG. 3 is a side view of a main part showing a connection procedure of FIG. 1,
The operations are performed in the order of (a), (b), and (c).

FIG. 4 shows another example of the present invention, wherein (a) is a rear perspective view,
(B) is an explanatory view of a rear vertical section.

FIGS. 5A and 5B are side explanatory views showing a conventional breaker mounting structure.

[Explanation of symbols]

1. Breaker, 2. Mounting base, 3a Front projection, 3b Rear projection, 4a Power supply connection terminal,
4b ··· Load-side connection terminal, 5 ··· Spring body (movable locking tool), 5a ··· Protrusion holding part, 7 ·· Window, 8 ··· Standing locking piece (fixed locking piece), 8a. Locking window, 11 moving holder (movable locking tool), 11a holding recess, 12 metal spring.

Claims (2)

[Claims] An engaging portion is provided at a lower end portion of both a front surface having a power supply side connection terminal and a rear surface having a load side connection terminal of the breaker, and the breaker is fixed by locking the engaging portion to a mounting base. A fixed locking piece integrally formed on a mounting base for locking the breaker front side engaging part, and the rear side engaging part assembled with the mounting base by elastic force. The engaging portion is locked to the locking portion by a breaker mounting operation on the mounting base and a forward moving operation after mounting the breaker, and the breaker is mounted on the mounting base. A breaker mounting structure characterized by being connected to a breaker. 2. The breaker mounting structure according to claim 1, wherein the engaging portions provided on the front surface and the rear surface are projections.