JP4089947B2 - Mounting structure for electrical equipment with wire connection mechanism - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electric device mounting structure for mounting an electric device including an electric wire connection mechanism to a mounting base.
[0002]
[Prior art]
There are breakers, terminal blocks, etc. as electrical equipment with a wire connection mechanism. For example, a branch breaker is fixed to a mounting base by inserting a mounting screw into a mounting hole provided in the breaker body regardless of screw terminal type or plug-in type. The method is general, and the mounting screw can be removed even when the electric wire is connected to the terminal portion.
However, this conventional method is to install a breaker body when installing a breaker at the installation site, etc., or when the circuit breaker is replaced with an earth leakage breaker or when replacing 100V with 200V. In order to confirm that it was securely locked to the base, it was necessary to confirm that the mounting screws of the mounting holes were tightened one by one, and the workability was poor. Also, if you forget to fix it to the mounting base, in the worst case, the branch breaker may fall off the bus bar in the energized state, leading to an accident. In addition, if the breaker is removed from the bus bar while electricity is supplied to the load by mistake, there is a problem that a large number of arcs may fly.
[0003]
[Problems to be solved by the invention]
Therefore, it is possible to securely lock the electric device equipped with the electric wire connection mechanism to the mounting base, and when it is not locked, it is impossible to connect the electric wire to the electric device, and in the state where the electric wire is connected to the electric device. An electrical equipment mounting structure in which the electrical equipment cannot be removed from the mounting base and an electrical equipment mounting structure having a wire connection mechanism that is automatically locked to the mounting base by sliding the electrical equipment body toward the bus bar. It was long-awaited.
[0004]
[Means for Solving the Problems]
The present invention made in order to respond to the above-mentioned long-awaited, the wire hole safety valve for preventing the insertion of the electric wire in the electric device in the electric device mounting structure provided with the electric wire connecting mechanism for attaching the electric device having the electric wire connecting mechanism to the mounting base, The lock provided by the main body lock piece 32 on the mounting base 2 is provided as an electrical equipment attachment provided integrally with the upper and lower parts so as to interlock with the main body lock piece inserted into the locking hole provided in the mounting base. The invention according to claim 1, wherein the wire hole safety valve 31 for preventing the insertion of the wire when it is inserted into the hole portion 22 has reached a position where the wire can be inserted. In the invention, the electrical device is slidably attached to the mounting base, and the electrical equipment mounting tool is always biased toward the mounting base during the mounting. And in the invention of the said Claim 2, after fitting the both sides of the electric equipment attachment to the longitudinal groove part provided in the back both sides of the electric equipment so that sliding was possible, it protruded on both sides of this electric equipment attachment The elastic piece is always urged downward by a downward spreading portion formed at the groove bottom of the vertical groove portion, and the lower surface of the main body lock piece is inclined downward from the tip side in the mounting sliding direction of the electric device. In these inventions described above, the electrical equipment fixture is provided with an insulating wall that intervenes on the front side between the wire holes.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Next, a preferred embodiment of the present invention will be described with reference to an attachment structure for a branch breaker, which is an electric device including an electric wire connection mechanism.
Reference numeral 1 denotes a branch breaker which is an electric device having an electric wire connection mechanism. This breaker 1 has a horizontal groove 11, 11 projecting from the mounting base 2 facing the front and rear sides of the lower surface of the mounting base 2. It is slidably attached by engaging with the rail portions 21 and 21 formed by the hole edges of the punched holes.
[0006]
Reference numeral 3 denotes an electrical equipment fixture provided on the load side of the breaker 1, and the electrical equipment fixture 3 is provided on the wire hole safety valve 31 and the mounting base 2 for preventing the insertion of the wire into the load terminal wire hole 12. was is configured integrally provided vertically to the main body locking piece 32 is interlocked to be inserted into the engaging hole 22, the main body lock piece 32 is mount when the wire hole safety valve 31 to allow insertion of the wire 2 is inserted into the locking hole portion 22 provided in FIG. When the main body locking piece 32 is locked to the locking portion provided on the mounting base 2, the mounting state is obtained.
[0007]
Moreover, it is preferable that the electrical equipment fixture 3 is always urged toward the mounting base 2 when the breaker 1 is attached to the mounting base 2. As this urging means, as shown in FIG. 6, both sides of the electrical equipment fixture 3 are slidably fitted in longitudinal groove portions 13, 13 provided on both sides of the back surface of the breaker 1, and then the electrical equipment fixture 3. The elastic pieces 33, 33 projecting from both sides of the vertical groove portions 13, 13 are always urged downward by a downward spreading portion 13 a formed at the groove bottom of the vertical groove portions 13, 13.
[0008]
If the upper spread portion 13b is formed continuously above the lower spread portion 13a, the electric device attachment 3 is moved up by the operation of the fingers until the tip of the elastic piece 33 reaches the upper spread portion 13b. The electric wire hole safety valve 31 is prevented from being inserted into the electric wire hole 12 while being held in the release position by the lock body 32 of the electric equipment fixture 3. By doing in this way, since the electric equipment fixture 3 can hold | maintain a lock release position, since it is not necessary to hold a release state with a finger | toe, it becomes possible to attach or detach the breaker 1 to the mount 2 with one hand.
[0009]
Further, when the electrical equipment fixture 3 is always urged toward the mounting base 2 side, if the lower surface 32a of the main body lock piece 32 is inclined downward from the tip in the mounting sliding direction of the breaker 1, the breaker When the body 1 is slid and mounted on the mounting base 2, the main body lock piece 32 is automatically pressed against the end of the mounting base 2 against the biasing means to move upward and downward to move the locking hole. Therefore, the mounting and locking can be performed simply by pressing the breaker 1 against the mounting base 2 and sliding. In addition, as shown in FIG. 8, if the electrical equipment fixture 3 is provided with an insulating wall 34 that intervenes on the front side between the wire holes 12, 12, the covering of the wires 5 inserted into the wire holes 12 is short. Since insulation can be secured, even if there is some variation in the peeling of the wire coating, it can be handled. Although the insulating wall 34 is provided upright on the operation handle 35, it may be provided directly on the back surface of the electrical equipment fixture 3.
[0010]
In this configuration, the breaker 1 can be slidably attached to the mounting base 2 and the electrical equipment fixture 3 provided in the breaker 1 can be slid downward as shown in FIGS. For example, the wire hole safety valve 31 that prevents the insertion of the electric wire interlocking with this reaches the position where the electric wire can be inserted, and the main body lock piece 32 is inserted into the locking hole portion 22 provided in the mounting base 2. Thereby, since the breaker 1 slidably attached to the mounting base 2 is locked in the front-rear direction in addition to the restrictions on the vertical direction and the left-right direction with respect to the mounting base 2, the breaker 1 is detached from the mounting base 2. There is no.
[0011]
In this way, when the main body lock piece 32 is inserted into the locking hole portion 22 provided in the mounting base 2, the wire hole safety valve 31 that prevents the insertion of the wire has reached a position where the wire can be inserted. The electric wire 5 can be inserted into the electric wire hole 12, and the connection of the electric wire can be performed. In this case, since the wire 5 is located at the upper end of the wire hole safety valve 31, the wire safety valve 31 is restricted by the wire 5 and prevented from moving upward. It does not come out of the locking hole 22 provided in the mounting base 2. Accordingly, there is a risk that the breaker 1 may fall off the mounting base 2 in an energized state, leading to an accident, or the breaker 1 may be disconnected from the bus bar 8 and a large number of arcs may be ejected while power is accidentally supplied to the load. There is nothing.
[0012]
In addition, in a state where the main body lock piece 32 is not inserted into the locking hole portion 22 provided in the mounting base 2, the wire hole safety valve 31 that prevents the insertion of the wire covers the front surface of the wire hole 12. Since the electric wire 5 is not connected to the breaker 1 in an incomplete mounting state, safety can be ensured, and the lock to the locking hole portion 22 provided in the mounting base 2 on the main body lock piece 32 is not made until the electric wire 5 is removed. Since the breaker 1 can be released, the breaker 1 cannot be inadvertently removed while the electric wire 5 is connected.
[0013]
Further, if the electric device mounting tool 3 is always urged toward the mounting base 2 when the breaker 1 is mounted on the mounting base 2, the main body locking piece 32 is provided on the mounting base 2 even if the electric wire 5 is detached. The lock to the hole 22 is not released. Further, as shown in FIG. 1, it is preferable to attach a mark 9 such as an arrow for starting the slide of the breaker 1 to the mounting base 2. Although the illustrated embodiment has been described with the plug-in type breaker, the present invention is not limited to this, and may be a screw terminal type breaker. Of course, there is nothing to do.
[0014]
【The invention's effect】
As described above, the mounting structure of the electric device provided with the electric wire connection mechanism according to the present invention cannot connect the electric wire to the electric device unless the electric device is locked to the mounting base. Since it is impossible to remove the electrical device from the mounting base when it is connected to the electrical device, it is excellent in terms of safety when installed on site. Further, since the electric device is slid toward the bus bar, it is automatically locked to the mounting base, so that the workability is excellent. Furthermore, by providing an insulating wall on the electric equipment fixture, there is an advantage that it is safe even if the covering of the electric wire is somewhat short.
Therefore, it is a solution to the conventional problems and is a great benefit for the industry.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a main part of an embodiment of the present invention.
FIG. 3 is a perspective view showing a main part of an embodiment of the present invention.
FIG. 4 is a cross-sectional view showing a main part of an embodiment of the present invention in a different manner.
FIG. 5 is a perspective view showing the main part of the embodiment of the present invention in different aspects.
FIG. 6 is a front view showing an electric equipment fixture used in the embodiment of the present invention.
FIG. 7 is a front view showing an electric equipment fixture used in the embodiment of the present invention.
FIG. 8 is a perspective view showing another example of the electric apparatus according to the embodiment of the present invention.
1 Breaker
31 Vertical groove
13a Bottom spreading part 2 Mounting base
22 Locking hole 3 Electrical equipment fixture
31 Wire hole safety valve
31 Main unit lock piece
32a Bottom of body lock
34 Insulating wall

Claims (4)

In the mounting structure of an electric device having an electric wire connection mechanism for attaching an electric device having an electric wire connection mechanism to the mounting base, the electric hole is inserted into the electric hole safety valve for preventing the electric wire from being inserted into the electric device and the locking hole provided in the mounting base. Assuming that the electrical equipment fixture is provided integrally with the top and bottom so as to interlock with the main body locking piece, the insertion of the electric wire is prevented when the main body locking piece is inserted into the locking hole provided on the mounting base. An attachment structure for an electric device comprising an electric wire connection mechanism, wherein the electric wire hole safety valve has reached a position where insertion of an electric wire is possible . The mounting structure of an electric device provided with the electric wire connection mechanism according to claim 1, wherein the electric device is slidably mounted on the mounting base, and the electric device mounting tool is constantly biased toward the mounting base during mounting. Both sides of the electrical equipment fixture are slidably fitted into the longitudinal groove portions provided on both sides of the back of the electrical equipment, and elastic pieces projecting on both sides of the electrical equipment fixture are formed at the groove bottom of the longitudinal groove portion. The mounting structure for an electric device provided with the electric wire connection mechanism according to claim 2, wherein the lower expanding portion is always urged downward and the lower surface of the main body locking piece is inclined downward from the distal end side in the mounting sliding direction of the electric device. The mounting structure of the electric equipment provided with the electric wire connection mechanism of Claim 1, 2, or 3 which provided the insulating wall which intervenes in the electric equipment fixture at the front side between electric wire holes.

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