JP7400997B2 - elevator control device - Google Patents

Description

The present disclosure relates to an elevator control device.

Patent Document 1 discloses an elevator control device. According to the control device, it is possible to suppress the sound when the electromagnetic switch is opened and closed.

Japan Utility Model Publication No. 6-4798

However, the control device described in Patent Document 1 only directly suppresses the sound when the electromagnetic switch is opened/closed by generating a sound with a phase opposite to the sound when the electromagnetic switch is opened/closed. Therefore, solid-borne sound during opening and closing of the electromagnetic switch cannot be suppressed.

The present disclosure has been made to solve the above problems. An object of the present disclosure is to provide an elevator control device that can suppress solid-borne sound during opening and closing of an electromagnetic switch.

An elevator control device according to the present disclosure includes a housing forming an outer shell, a mounting body provided inside the housing, an electromagnetic switch supported by the mounting body and supplying power to an electric motor, and the electromagnetic switch. The present invention includes a traction body that applies a load to the switch in a pulling direction, and an adjustment body that adjusts the tension of the traction body .

According to the present disclosure, the pulling body applies a load to the electromagnetic switch in a pulling direction. Therefore, solid-borne sound during opening and closing of the electromagnetic switch can be suppressed.

FIG. 2 is a front view of main parts of the elevator control device in Embodiment 1. FIG. FIG. 2 is a side view of main parts of the elevator control device in Embodiment 1. FIG. FIG. 7 is a front view of main parts of an elevator control device in Embodiment 2. FIG. FIG. 7 is a front view of main parts of an elevator control device in Embodiment 3;

Embodiments will be described according to the attached drawings. In each figure, the same or corresponding parts are given the same reference numerals. Duplicate explanations of the relevant parts will be simplified or omitted as appropriate.

Embodiment 1.
FIG. 1 is a front view of main parts of an elevator control device according to the first embodiment. FIG. 2 is a side view of the main parts of the elevator control device according to the first embodiment.

In FIGS. 1 and 2, the control device is provided in a machine room or hoistway (not shown) of the elevator. A control device is provided to provide overall control of the elevator. The control device includes a housing 1 , a mounting body 2 , a pair of suppressors 3 , a box body 4 , an electromagnetic switch 5 , a traction body 6 , and an adjustment body 7 .

The housing 1 forms the outer shell of the control device. For example, the housing 1 is formed into a box shape. The box body 4 includes a beam 1a. The beam 1a is arranged inside and at the top of the housing 1 with its longitudinal direction being horizontal.

The mounting body 2 is provided inside and at the bottom of the housing 1 . For example, the attachment body 2 is formed into a plate shape.

For example, each of the pair of suppressors 3 is made of anti-vibration rubber. The pair of suppressors 3 are attached to the upper surface of the attachment body 2 in parallel with each other in the horizontal direction.

The box body 4 is attached to the upper surface of the pair of suppressors 3. The box body 4 is supported by a pair of suppressors 3. The box body 4 has a soundproof specification. For example, the box body 4 is provided so as to be soundproofed with sound-absorbing foam.

For example, the electromagnetic switch 5 is an electromagnetic contactor. For example, the electromagnetic switch 5 is an electromagnetic relay. The electromagnetic switch 5 is housed in the box 4. The electromagnetic switch 5 is provided so as to be able to supply electric power to a motor of a hoisting machine (not shown) in response to a command from a control unit (not shown). The electromagnetic switch 5 is supported by the mounting body 2 via the box body 4 and the pair of suppressors 3.

For example, the pulling body 6 is a wire. The traction body 6 has elasticity. The pulling body 6 is provided so as to be able to apply a load to the electromagnetic switch 5 in a pulling direction via the box body 4. Specifically, the towing body 6 is hung on the beam 1a. One end of the traction body 6 is connected to the box body 4 on the electromagnetic switch 5 side. The other side of the traction body 6 is connected to one of a plurality of connection points set in advance inside the housing 1 .

For example, the adjustment body 7 is a handle. The adjustment body 7 is provided on the other side of the traction body 6. The adjustment body 7 is provided so that the tension of the traction body 6 can be adjusted. For example, when the adjustment body 7 is a handle, the tension of the traction body 6 is adjusted by turning the handle.

According to the first embodiment described above, the traction body 6 applies a load to the electromagnetic switch 5 in the direction of pulling it up via the box body 4. Therefore, transmission of solid-borne sound when the electromagnetic switch 5 is opened and closed can be dispersed. As a result, solid-borne sound during opening and closing of the electromagnetic switch 5 can be suppressed. For example, in a hotel, if a machine room is provided on an intermediate floor, it is possible to suppress individual propagation sound to the guest rooms on the intermediate floor.

Further, the other end of the towing body 6 is connected to one of a plurality of connection points inside the housing 1 . Therefore, solid-borne sound during opening and closing of the electromagnetic switch 5 can be appropriately suppressed depending on the installation conditions of the control device at the site. For example, if there is a beam on the building side directly below the electromagnetic switch 5, the other end of the traction body 6 can be connected to a connection point away from the beam to suppress structure-borne sound toward the building side. can.

Moreover, the traction body 6 has elasticity. Therefore, even if the vibrations caused by the opening and closing of the electromagnetic switch 5 are dispersed and propagated through solid bodies, these solid propagation can be suppressed. For example, it is possible to absorb upward vibrations caused by the opening and closing of electrical machinery.

Further, the adjustment body 7 adjusts the tension of the traction body 6. Therefore, it is possible to reduce the work load when changing the ratio of dispersing vibrations caused by opening and closing of the electromagnetic switch 5 on site.

Further, the electromagnetic switch 5 is housed in the box 4. The box body 4 is supported by a pair of suppressors 3. In this state, the pair of suppressors 3 suppress vibrations when the electromagnetic switch 5 opens and closes. Therefore, solid-borne sound during opening and closing of the electromagnetic switch 5 can be suppressed more reliably.

Note that the box body 4 directly suppresses the sound when the electromagnetic switch 5 is opened and closed. Therefore, the sound generated when the electromagnetic switch 5 is opened and closed can be suppressed more reliably.

Embodiment 2.
FIG. 3 is a front view of the main parts of the elevator control device according to the second embodiment. Note that parts that are the same as or equivalent to those in Embodiment 1 are given the same reference numerals. Description of this part will be omitted.

In FIG. 3, the building beam 8 is installed in a machine room or hoistway, which is not shown. The beam 8 is arranged with its longitudinal direction in the horizontal direction.

The frame 1b is provided at the bottom of the housing 1. The frame 1b is arranged near the beam 8. Specifically, one edge of the frame 1b is placed directly above the beam 8. One edge of the frame 1b is supported by the beam 8.

A pair of suppressors 3 are attached to the upper surface of the frame 1b.

Although details are not shown, the other side of the towing body 6 is branched so that there are a plurality of ends. The plurality of ends are connected to a plurality of preset connection points inside the housing 1 .

According to the second embodiment described above, on the other side of the towing body 6, the plurality of ends are connected to a plurality of connection points set in advance inside the housing 1. Therefore, solid-body propagation of vibrations caused by opening and closing of the electromagnetic switch 5 can be dispersed.

Note that depending on the building, there are beams 8 in which vibrations due to the opening and closing of the electromagnetic switch 5 are easily propagated through the solid body, and beams 8 in which vibrations due to the opening and closing of the electromagnetic switch 5 are difficult to propagate through the solid body. In this case, solid-borne sound during opening and closing of the electromagnetic switch 5 may be appropriately suppressed by changing the connection point on the other side of the traction body 6 according to the installation conditions of the control device at the site.

Embodiment 3.
FIG. 4 is a front view of main parts of an elevator control device in Embodiment 3. Note that parts that are the same as or equivalent to those in Embodiment 1 are given the same reference numerals. Description of this part will be omitted.

As shown in FIG. 4, the pulley 9 is provided above the box 4. The traction body 6 is wound around a pulley 9.

According to the third embodiment described above, the towing body 6 is wound around the pulley 9. At this time, the pulley 9 serves as a fulcrum when applying a load to the electromagnetic switch 5 in the pulling direction. Therefore, it is possible to reduce the work load when changing the ratio of dispersing vibrations caused by opening and closing of the electromagnetic switch 5 on site.

As described above, the elevator control device of the present disclosure can be used in an elevator system.

1 Housing, 1a Beam, 1b Frame, 2 Mounting body, 3 Suppression body, 4 Box body, 5 Electromagnetic switch, 6 Traction body, 7 Adjustment body, 8 Beam, 9 Pulley

Claims (6)

A casing forming an outer shell,
a mounting body provided inside the housing;
an electromagnetic switch supported by the mounting body and supplying power to the electric motor;
a pulling body that applies a load to the electromagnetic switch in a pulling direction;
an adjustment body that adjusts the tension of the traction body;
Elevator control equipment with. The elevator control device according to claim 1, wherein the traction body has one end connected to the electromagnetic switch and the other end connected to one of a plurality of connection points inside the casing. The elevator control device according to claim 1, wherein the traction body has one end connected to the electromagnetic switch and the other end connected to a plurality of connection points inside the casing. The elevator control device according to any one of claims 1 to 3, wherein the pulling body is stretchable. a pulley around which the traction body is wound;
The elevator control device according to any one of claims 1 to 4, comprising: a box housing the electromagnetic switch;
a suppressor that is provided between the mounting body and the box body and suppresses vibration of the electromagnetic switch;
The elevator control device according to any one of claims 1 to 5, comprising:

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