JP6180989B2 - Electrical equipment fixture and electrical equipment using the same - Google Patents

Description

  The present invention relates to a fixture for attaching an electrical device to a mounting rail.

  When an electrical device is mounted on a mounting rail or the like that complies with the IEC standard, the rear surface of the device is fixed by a pair of fixed claws and movable claws that grip the rail.

  As a prior art in this field, there is JP 2011-14499 (Patent Document 1). In Patent Document 1, an engaging projection that is a fixed claw is formed integrally with a circuit breaker, and a rail is provided by a mounting device that includes a spring portion, a slide portion, and a claw portion that can engage with a mounting rail that is a movable claw. The structure which urges | biases to the direction which hold | grips is disclosed.

JP 2011-14499 A

  In Patent Document 1, it is necessary to integrally form an engaging projection which is a fixed claw with an apparatus. The housing on the device side that forms the fixed claw is generally manufactured by a mold. In order to form an L-shaped fixed claw by manufacturing a mold, there is a problem that the mold becomes complicated and the manufacturing cost increases. In addition, since the movable claw needs a space for storing the spring in the vicinity thereof, there is a problem that the space inside the device is pressed from the back of the device.

  In addition, when mounting a rail mounting tool on a device that does not have a fixed claw, a fixed claw and a movable claw are separately prepared and attached, which increases the number of parts and complicates the installation work.

  Accordingly, an object of the present invention is to provide an electrical device mounting tool that facilitates manufacturing on the device side, reduces the number of parts, and improves mounting workability.

  In order to solve the above problems, for example, the configuration described in the claims is adopted. The present invention includes a plurality of means for solving the above-described problems. To give an example, the present invention is a mounting tool for mounting an electric device to a mounting rail, and includes two claw portions that can be fitted to the mounting rail. The two claw portions are formed of an elastic portion that connects the two claw portions, and the two claw portions and the elastic portion are integrally formed, and the attachment by the two claw portions by the restoring force of the elastic portion. A structure that can grip the rail.

  ADVANTAGE OF THE INVENTION According to this invention, the attachment of the electric equipment which made manufacture of the apparatus side easy, reduced the number of parts, and improved the attachment workability | operativity can be provided.

It is a perspective view of the circuit breaker of Example 1 of the present invention. It is a perspective view of the fixture of Example 1 of this invention. It is a structural diagram of the fixture of Example 1 of the present invention. It is a perspective view of the fixture of Example 2 of this invention. It is a side view of the fixture of Example 3 of this invention and the circuit breaker which mounted | wore with it.

  Embodiments of the present invention will be described below with reference to the drawings.

In the present embodiment, a circuit breaker will be described as an example of an electric device attached to the mounting rail.
A circuit breaker installed in a housing of a distribution board or a distribution board is attached to a mounting rail that conforms to, for example, the IEC standard, which is fixed to a mounting plate provided in the housing.

  FIG. 1 is a perspective view of the circuit breaker of this embodiment as viewed from the back side. In FIG. 1, a circuit breaker 1 has a rail fitting groove 2 provided on the back surface, and is attached to a mounting plate provided in a housing such as a distribution board, which extends to the left and right of the drawing. To fit. Reference numeral 3 denotes an attachment for attaching the circuit breaker 1 to the mounting rail, and shows a state in which the circuit breaker 1 is attached.

  FIG. 2 shows a perspective view of the fixture 3. In FIG. 2, the fixture 3 is comprised from the fixed nail | claw 4 and the movable nail | claw 5 which are two nail | claw parts which can be fitted to an attachment rail, and the elastic part 6 which consists of an elastic body which connects them.

  As a structural diagram of the fixture 3, FIG. 3A shows a front view, FIG. 3B shows a side view, and FIG. 3C shows a rear view. As shown in FIG. 3, the fixture 3 is configured by connecting the fixed claw 4 and the movable claw 5 with an elastic portion 6, and when attaching to the mounting rail, the elastic portion is stretched and bent. The mounting rail can be inserted between the claws with the gap between the claws extended, and the mounting rail is gripped by the restoring force of the elastic portion.

  In the present embodiment, as the fixture 3, the fixed claw 4, the movable claw 5, and the elastic portion 6 are integrally formed of resin to reduce the number of parts. In addition, since the fixture 3 does not need to be resin and the elastic part 6 should just be a structure which has elasticity, it may be comprised, for example with a metal and the elastic part 6 may be made into a spring structure.

  The fixed claw 4 and the movable claw 5 are provided with screw holes for attachment to the circuit breaker. Further, on the circuit breaker side with respect to this, there are provided mounting holes for fixing the fixed claws and mounting holes for mounting the movable claws in a movable state. As shown in FIG. 1, the fixture is fixed to the circuit breaker via the two claw portions through the screw holes and the attachment holes. Note that the attachment to the circuit breaker is not limited to a screw, and may be fixed by, for example, a snap.

  In this embodiment, the fixing claw 4 is horizontally long, the movable claw 5 is vertically long, and two screw holes for attachment are provided to secure the fixing to the circuit breaker. However, it is not limited to this, For example, it is good also as one screw hole.

  As shown in the side view of FIG. 3 (B), the fixture 3 is attached to the screw mounting surface on the circuit breaker side through the screw holes for mounting the fixed claw 4 and the movable claw 5 to the circuit breaker. Thus, the mounting surface on the circuit breaker side of the elastic portion 6 is arranged at a position one step lower, rightward in the drawing. That is, the attachment surface of the elastic part to the device protrudes from the attachment surface of the two claw parts to the device. As shown in FIG. 1, the elastic part 6 is housed in the groove 7 provided in the rail fitting groove 2 provided in the circuit breaker 1, so that the circuit breaker after being attached to the mounting rail is This is to reduce the mounting height. For example, if the circuit breaker is for three phases, the groove 7 requires two partition walls to shield each phase, and the wall for forming the partition wall is formed as a partition forming groove from the back surface. ing. That is, the groove for forming the partition wall is used as a groove for storing the elastic portion. Therefore, by housing the elastic part 6 in the groove 7 which is a groove for forming the partition wall, the fixture can be fixed to the circuit breaker without pressing the space inside the device from the back of the device. In addition, by digging down the screw attachment position of the fixed claw 4 and the movable claw 5 on the circuit breaker side, the mounting surface of the elastic part 6 and the fixed claw 4 and the movable claw 5 on the circuit breaker side may be made the same. it can.

  As described above, the present embodiment is a mounting tool for mounting an electric device to a mounting rail, and includes two claw portions that can be fitted to the mounting rail, and an elastic body that connects the two claw portions. The two claw portions and the elastic portion are formed integrally with an elastic portion, and the mounting rail can be gripped by the two claw portions by the restoring force of the elastic portion.

  Thereby, the fixing claw structure by the side of an electric equipment can be made unnecessary by attaching to the electric equipment the fixture for attaching an electric equipment to a mounting rail. Therefore, in the manufacture of a mold on the electric equipment side, the mold can be pulled out only in the vertical direction, the mold can be inexpensive, the mold can be easily opened, and the manufacturing process can be shortened. Moreover, the number of parts can be reduced due to the integral formation, and the mounting workability can be improved.

  In addition, if it is an attachment for a circuit breaker, the elastic part connecting the fixed claw and movable claw can be stored in the groove provided in the equipment, so that the space inside the equipment can be kept without pressing the space inside the equipment from the back of the equipment. The fixture can be secured to the circuit breaker while minimizing the pressure on the circuit breaker.

  It should be noted that even in an electrical device other than a circuit breaker, a groove can be provided in the rail fitting groove, and the elastic portion can be accommodated in the groove. In this case, unlike the circuit breaker, the space inside the device cannot be pressed from the back of the device, but the mounting height of the electrical device after mounting on the mounting rail can be reduced.

  Moreover, since it is an external attachment tool, it is possible to attach a device without a fixed claw.

  FIG. 4 is a perspective view of the fixture of the present embodiment. A present Example is an example of the fixture for attaching the circuit breaker for three phases to an attachment rail.

  In FIG. 4, the attachment 8 has two sets of the movable claw 5 and the elastic portion 6 connecting the movable claw 5 to the fixed claw 4. Compared with the fixture of the first embodiment, this is to ensure that the fixture is attached to the circuit breaker, and to strengthen the gripping force to the mounting rail, the movable claw 5 and the elasticity connecting it. The difference is that the portion 6 is divided into two sets. Further, in the case of a three-phase circuit breaker, since two partition walls are required for shielding between the phases, two partition wall forming grooves for forming the partition wall can be formed. This is an example in which a forming groove is effectively used. In addition, the shape of the fixture 8 of a present Example is not limited to this, For example, the attachment operation | work of the fixture to a circuit breaker can be made easy by connecting the two movable claws 5. it can.

  According to this embodiment, it is possible to secure the certainty of attachment of the fixture to the circuit breaker and to strengthen the gripping force to the attachment rail.

  In this embodiment, an example of a fixture that can be used even in a device having no rail fitting groove will be described.

  FIG. 5 shows a diagram of the fixture of this embodiment and a circuit breaker equipped with the fixture. In FIG. 5, (A) is a side view of the fixture, and (B) is a side view of the circuit breaker equipped with the fixture.

  As shown in FIG. 5A, the attachment 9 of the present embodiment has the same mounting surface on the circuit breaker side of the elastic portion 6, the fixed claw 4, and the movable claw 5 as compared to the first embodiment. Is different.

  Then, as shown in FIG. 5 (B), the fixture is attached to the circuit breaker via the fixed claws 4 and the movable claws 5 by screws or other fixing means. At this time, the mounting height of the mounting tool 9 varies depending on the mounting surface of the fixed claw 4 and the movable claw 5 on the circuit breaker side. In the present embodiment, the elastic portion 6 and the mounting surface of the fixed claw 4 and the movable claw 5 on the circuit breaker side are the same. The height of the mounting surface may be lowered.

  As described above, according to this embodiment, it is possible to provide a fixture for mounting on a mounting rail that can be used even in a device without a rail fitting groove.

  In this embodiment, since it can be a fixture that is not affected by the rail fitting groove, it has a T-shaped structure in which the fixed claw 4 is horizontally long and the movable claw 5 is vertically long as shown in the first embodiment. There is no need, and it can be simply a fixture of various shapes composed of a fixed claw, a movable claw, and an elastic portion connecting between them.

  Moreover, although the circuit breaker has been described in the present embodiment, it is only necessary to use an electric device attached to the mounting rail, and it goes without saying that it can be applied to a control device such as a PLC.

  As described above, the present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

1: Circuit breaker,
2: Rail fitting groove,
3, 8, 9: Mounting tool,
4: Fixed nails,
5: Movable claw,
6: Elastic part,
7: groove,

Claims (8)

A fixture for attaching electrical equipment to a mounting rail,
It is composed of two claw parts that can be fitted to the mounting rail and an elastic part made of an elastic body that connects the two claw parts,
The two claw portions and the elastic portion are integrally formed,
The fixture having a structure capable of gripping the mounting rail by the two claw portions by a restoring force of the elastic portion. The fixture according to claim 1,
The fixture is integrally formed of resin. The attachment according to any one of claims 1 and 2,
The two claw portions are a fixed claw and a movable claw,
The fixed claw and the movable claw have a screw hole for attaching the fixture to the electric device. The attachment according to any one of claims 1 to 3,
The mounting surface of the elastic part to the electrical device projects from the mounting surface of the two claw portions to the electrical device. The electrical equipment body,
A mounting tool for mounting on a mounting rail separate from the electrical device body;
The fixture includes two claw portions that can be fitted to the mounting rail and an elastic portion made of an elastic body that connects the two claw portions, and the two claw portions and the elastic portion are integrally formed. And
The fixture is attached to the electrical device via the two claws,
An electric device with a fixture, wherein the mounting rail can be gripped by the two claw portions by a restoring force of the elastic portion of the fixture. An electrical device capable of mounting a mounting tool for mounting on a mounting rail,
The fixture comprises a fixed claw and a movable claw that can be fitted to a mounting rail, and an elastic part made of an elastic body that connects the fixed claw and the movable claw, and the fixed claw, the movable claw, and the elastic part are integrated. Formed,
An electrical apparatus comprising an attachment hole for fixing the fixed claw and an attachment hole for attaching the movable claw in a movable state. The electric device according to any one of claims 5 and 6,
Furthermore, it has a rail fitting groove for mounting on the mounting rail,
An electric device characterized in that a groove capable of accommodating the elastic portion is provided in the rail fitting groove. The electric device according to claim 7,
The electrical device is a circuit breaker,
The groove provided in the rail fitting groove is formed by a wall for forming a partition for shielding between phases of the circuit breaker.

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