JPH07162167A - Electrical device - Google Patents

Abstract

PURPOSE:To provide an electrical device having a simple construction which permits one-touch installation to a supporting rail. CONSTITUTION:Both side edges of a rail fitting & inserting groove 15 formed at a lower bottom surface 1' of an electrical device (relay box 1) are formed with supporting stepped edges 16a and 17a and open edges 16b and 17b; at the respective supporting stepped edges 16a and 17a, linking projections 18 and 18 creating retaining gaps for fitting jointing edges 12 and 12 are formed with the lower bottom surface 1' respectively; and, at the position opposite to the supporting stepped edge 16a, a small step-shaped edge 19 for holding in the width direction the end edges of both the jointing edges 12 and 12 of the supporting rail 10 is formed together with the supporting stepped edge 16a. By doing this, the electrical devise can become easily disconnectable only by turning it very slightly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrical component such as a relay box or a terminal block which is detachably fixed by a support rail.

[0002]

2. Description of the Related Art In a circuit combination of various electronic parts, an electric component such as a terminal block for electrically connecting the electronic parts or a relay box accommodating the terminal block is mounted on a support rail fixed to a distribution panel or the like. There is a method of removably mounting and fixing.

Conventionally, as a means for mounting this electric component on a support rail, a support rail is provided with a pair of engaging edges projecting laterally from both side edges along the longitudinal direction. The rail fitting groove formed in the lower bottom surface of the electrical fitting is fitted into the rail fitting groove that is opened in the front-rear direction and is slid to a desired position for mounting, or a mounting device having a spring-biased locking claw The electrical equipment is mounted on the lower bottom surface by laterally engaging the engaging claws of the mounting device with the engaging edges of the support rail.

[0004]

However, as described above, in the structure in which the rail fitting groove of the electric component is engaged from the end portion of the support rail, the electric component is desired along the support rail. I have to slide it to the position,
It is troublesome to attach / detach, and when multiple electrical components are attached to the support rail, if you try to remove any electrical component, you cannot remove all electrical components on the end side of the support rail. There was a problem that it had to be. Further, in the case of the configuration using the mounting device provided with the locking claws, since the mounting device has to be manufactured as a separate component and mounted on the lower bottom surface of the electrical component, the manufacturing cost increases, There is a problem that it takes time to manufacture.
The present invention has an object to provide an electric component that can solve the conventional problems.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a rail which is formed on a lower bottom surface and opens in the front-rear direction is formed on a support rail having a pair of engaging edges projecting laterally from both side edges along the longitudinal direction. In an electrical component which is detachably mounted by fitting a fitting groove, one side edge of the rail fitting groove has a first supporting step edge arranged at a front portion and a rear supporting portion. An open edge, and the other side edge is composed of a second support step edge which is arranged at the rear part and parallel to the first support step edge, and an open edge which is arranged at the front part. The width intervals of the step edges are matched with the width intervals of the support rails, and each of the support step edges is formed with a locking projection that creates a holding gap into which the engaging edge of the support rail fits with the lower bottom surface. At the position opposite to the first support step edge, the end edges of both engaging edges of the support rail are aligned with the support step edge in the width direction. It is characterized in that the formation of the fine stepped detent Dan'en for clamping.

[0006]

When the electric component is mounted on the support rail, the electric component is tilted with respect to the support rail, and the support rail is fitted between the open edges alternately arranged on both side edges of the rail fitting groove. Insert. Next, when the electrical equipment is rotated to bring the supporting step edges of the rail fitting groove into contact with the engaging edges on both sides of the supporting rail, the engaging projections of the supporting step edges are engaged with both engaging edges of the supporting rail. Are combined. At the same time, the first support step edge and the moderation step edge provided so as to face the support step edge sandwich the end edges of both engaging edges of the support rail from the width direction, and fix the same.
Further, when the electrical component is removed from the support rail, when the electrical component is rotated in the opposite direction to the above with a slightly strong force so that the mode step edge rides on the engaging edge of the support rail, In addition, the holding by the first support step edge and the moderation step edge is released, and the electric component can be removed. As described above, the electric component is held by the moderation step edge, and when opening the moderation step edge, it is necessary to rotate the electric component so that the moderation step edge rides on the engaging edge of the support rail. Therefore, with respect to normal external force, the opening is blocked by the moderation force generated by the engagement between the engagement edge and the moderation step edge, the connection is not easily released, and the electric component is stably provided. Held on a support rail.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. This embodiment shows a case where the electrical equipment according to the present invention is used as a relay box for housing the terminal block.

The relay box 1 is formed in a box shape having an open top, and a cover plate 2 is detachably attached to the open portion.
Side plate fitting ports 4 and 4 having engaging grooves 3 and 3 formed on the peripheral edges thereof are opened in the left and right side wall portions of the relay box 1, and the engaging grooves 3 and 3 are formed in the side plate fitting ports 4 and 4. The side plates 6 and 6 provided with the brim edges 5 and 5 which are fitted with are detachably fitted. Further, through holes 8, 8 for inserting the cables 7, 7 are formed in the side plates 6, 6.

In this way, by providing the side plates 6 and 6 in a removable manner, the terminal block 9 housed in the relay box 1
As shown in FIG. 1, the cables 7 and 7 are connected to the outside of the relay box 1, and the terminal block 9 can be incorporated into the relay box 1 together with the side plates 6 and 6 as it is.
Conventionally, it is possible to eliminate the difficulty of the wiring work performed in the narrow relay box 1.

As shown in FIG. 2, the support rail 10 for mounting the relay box 1 is formed in a substantially U-shaped cross section, and has a pair of engaging edges 12, 11 extending from both side edges 11, 11 along the longitudinal direction. 12 are projected to the side, and the bottom plate portion 13
It is fixed to a power distribution panel or the like by a screw inserted through the mounting hole 14 formed in the above.

On the lower bottom surface 1'of the relay box 1, as shown in FIGS. 3 to 4, there is formed a rail fitting groove 15 which is open in the front-rear direction. One side edge of the rail fitting groove 15 is
The first support step edge 16a arranged in the front part and the open edge 16b arranged in the rear part, while the other side edge of the rail fitting groove 15 is arranged in the rear part, and It is composed of a second support step edge 17a parallel to the one support step edge 16a and an open edge 17b arranged in the front part.

Further, the width w of both the support step edges 16a and 17a is provided so as to match the width interval W of the support rail 10, and the support box edges 16a and 17a are respectively provided with the relay box 1 of the relay box 1. The lower bottom surface 1'and the support rail 1
Locking protrusions 18 and 18 are formed to generate a holding gap s into which the zero engaging edges 12 and 12 are fitted.

Further, in the rail fitting groove 15, at the position facing the first support step edge 16a, the end edges of both engaging edges 12, 12 of the support rail 10 are formed by the support step edge 16a. A fine stepped step edge 19 that is sandwiched in the width direction is formed.

Next, the relay box 1 having the above structure.
The attachment / detachment operation to / from the support rail 10 will be described with reference to FIGS. In the drawings, for convenience of explanation,
It shows a state in which an originally immobile support rail 10 fixed to a power distribution panel or the like moves relative to the relay box 1.

When mounting the relay box 1 on the support rail 10, first, the relay box 1 is tilted with respect to the support rail 10 as shown in FIGS. Open edges 16 staggered on both sides of the
The support rail 10 is fitted between b and 17b. Next, the relay box 1 is rotated in the direction of the arrow so that the support step edges 16a and 17a of the rail fitting groove 15 are engaged with the engagement edges 12 and 12 on both sides of the support rail 10 as shown in FIGS. When brought into contact with each other, the engagement protrusions 12, 18 of the support step edges 16a, 17a are engaged with both the engagement edges 12, 12 of the support rail 10.
At the same time, the first support step edge 16a and the support step edge 1
As shown in FIG. 8, the moderation step edge 19 provided so as to face 6a clamps the end edges of both engagement edges 12, 12 of the support rail 10 from the width direction. Therefore, the relay box 1 cannot be easily detached from the support rail 10, and the relay box 1 is fixed.

Further, when the relay box 1 is detached from the support rail 10, the moderation step edge 9 rides on one engagement edge 12 of the support rail 10 engaged with the moderation step edge 9. When the relay box 1 is rotated in a direction opposite to the above with a slightly strong force, the engaging protrusions 18, 18 engage with the engaging edges 12, 12 of the support rail 10 and the first supporting step edge 16a. The clamping by the moderation step edge 19 is released, and the relay box 1 can be removed.

In the above embodiment, the support edge 16
a, 17a and an open edge 16b formed in a stepped edge continuous with
17b is shown, but the open edges 16b, 17b are not formed in such a step edge shape, and end portions of the support step edges 16a, 17a are flush with the lower bottom surface 1'of the relay box 1. Can also be opened. Further, in the embodiment, the electrical component according to the present invention is described as the relay box 1, but
In addition, the present invention can be implemented by an electric component such as a terminal block that can be mounted on the support rail 10.

[0018]

As described above, according to the present invention, the support step edges 16a and 17a are provided such that both side edges of the rail fitting groove 15 formed in the lower bottom surface 1'of the electrical equipment are staggered at the front and rear positions thereof.
And the open edges 16b and 17b.
a and 17a are formed with locking projections 18 and 18 which generate a holding gap into which the engaging edges 12 and 12 of the support rail 10 are fitted with the lower bottom surface 1 ', and the support step edge 16 is formed.
At the position facing a, the support step edge 16a forms a fine step mode step step edge for sandwiching the end edges of both the engaging edges 12, 12 of the support rail 10 from the width direction, and the electrical component Since it can be attached to and detached from the support rail 10 by simply rotating it, the attachment and detachment can be performed easily and quickly with one touch, as compared with the conventional engagement from the end of the support rail 10. Further, as compared with a device using a mounting device provided with a locking claw, the structure is simple and it can be integrally formed, so that the manufacturing cost is reduced, and the manufacturing is easy.

In particular, in the present invention, the electrical component is held by the moderation step edge 19 as described above, and when opening the moderation step edge 19, the moderation step edge 19 engages the engaging edge 1 of the support rail 10.
Since it is necessary to rotate the electric component so as to ride up to 2, the engagement edge 12 and the moderation step edge 1 can be applied to normal external force.
By the moderation force generated by the engagement with 9, the opening is blocked, the connection is not easily released, and the electric component can be stably held on the support rail 10.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an electric component according to the present invention and a terminal block.

FIG. 2 is a perspective view of a support rail.

FIG. 3 is a bottom view of the same electric component.

FIG. 4 is a front view of a rail fitting groove portion of the above electrical component.

FIG. 5 is a bottom view showing a process of mounting the electric component on the support rail.

FIG. 6 is a front view of a main part showing a mounting process of the electric component to the support rail.

FIG. 7 is a bottom view showing how the electric component is attached to the support rail.

FIG. 8 is a front view of a main part showing a mounting state of the electric component on the support rail.

[Explanation of reference numerals] 1 relay box (electrical component) 1'lower bottom surface 10 support rail 11 both side edges 12 engagement edge 15 rail fitting groove 16a first support step edge 16b open edge 17a second support step edge 17b Open edge 18 Locking protrusion 19 Moderation step edge s Holding gap w Support step edge width interval W Support rail width interval

Claims (1)

[Claims] 1. A support rail having a pair of engaging edges projecting laterally from both side edges along a longitudinal direction is fitted with a rail fitting groove formed in a lower bottom surface and opening in the front-rear direction. In the detachably mounted electric body, one side edge of the rail fitting groove is constituted by a first supporting step edge arranged in a front part and an open edge arranged in a rear part, and The side edge is composed of a second support step edge arranged at the rear part and parallel to the first support step edge, and an open edge arranged at the front part, and the width interval of both support step edges is set to the above-mentioned support. Along with the width interval of the rails, each supporting step edge is formed with a locking projection that creates a holding gap into which the engaging edge of the supporting rail fits with the lower bottom surface. A fine stepped step which sandwiches the end edges of both engaging edges of the support rail from the width direction with the supporting step edge at a position facing each other. Electric body characterized in that the formation of the.