JP2013148225A - Ventilator - Google Patents

Abstract

An object of the present invention is to eliminate the possibility of a lead wire in an electrical equipment box being caught between an electrical equipment cover and an electrical equipment case.
The electrical case 17 has a configuration in which ribs 19 for receiving the electrical cover 16 for receiving the electrical cover 16 are provided on the outer surface, and a side wall has a height that provides a gap between the inner surface of the electrical cover 16. The lead wire 13 is arranged in the gap between the side wall of the electrical box 18 and the inner surface of the electrical cover 16, so that the lead wire 13 in the electrical box 18 is not caught between the electrical cover 16 and the electrical case 17. You can get a ventilator that can.
[Selection] Figure 3

Description

  The present invention relates to prevention of biting of a lead wire in an electrical box provided in a ventilation device that is installed on a ceiling or the like and ventilates.

  Conventionally, this type of ventilator is configured by providing a fan casing having a suction port on the lower surface and a discharge port on the side surface inside the main body frame, and providing a control device in the gap between the main body frame and the fan casing. Is known (see, for example, Patent Document 1).

  Hereinafter, the ventilator will be described with reference to FIG.

  As shown in FIG. 6, a casing 105 having a suction port 103 on the lower surface and a discharge port 104 on the side surface is provided inside a box-shaped frame 102 having an opening 101 facing the indoor side on the lower surface. Although not shown in the figure, a control circuit as an electrical box that houses an electronic circuit board with a built-in centrifugal blower blade and a sensor for detecting an indoor environment in the vicinity of the suction port 103 below the casing 105 in the frame 102. A case 106 is provided.

JP-A-5-106879

  Such a conventional ventilator has a problem that the lead wire in the electrical box may be caught between the electrical cover and the electrical case.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a ventilator that can eliminate the risk of a lead wire in an electrical box being bitten by an electrical cover and an electrical case.

  In order to achieve this object, the present invention provides a box body provided with a suction port and a flange portion on the bottom surface and a ventilation port on the top surface, and air in the room from the suction port inside the box body. A blower unit that sucks and discharges from the ventilation port, and a drive that drives the blower unit that is mounted on the top surface of the ventilation port and that has a suction port at a substantially central portion on the front side in the blade rotation axis direction of the ventilation unit. The device and the blower unit are connected to a power supply line by a lead wire, and are provided with an electrical equipment box composed of an electrical equipment cover and an electrical equipment case for protecting the drive device and the connecting portion, and the electrical equipment case is attached to the outer surface. Is provided with a rib for receiving the electrical cover, and the side wall is set to a height that provides a gap with the inner surface of the electrical cover, thereby achieving the intended purpose.

  According to the present invention, the electrical case has a structure in which a rib for receiving an electrical cover is provided on the outer surface, and a side wall is provided with a height to provide a gap between the inner surface of the electrical cover, Since it will be arranged in the gap between the side wall of the electrical box and the inner surface of the electrical cover, the lead wire in the electrical box can be prevented from being bitten by the upper cover and the lower cover. Can do.

Side surface block diagram which shows the structure of the ventilation apparatus of Embodiment 1 of this invention Side partial configuration diagram showing the wiring of the ventilation device Side configuration diagram showing the wiring in the electrical box of the ventilation device The front view which shows the electrical equipment case of the ventilator of Embodiment 2 of this invention Cross-sectional perspective view showing wiring in the electrical box of the ventilation device The perspective view which shows the structure of the conventional ventilation apparatus

  The ventilator according to claim 1 of the present invention sucks room air into the inside of the box from the inlet through a box provided with a suction port and a flange on the bottom and a ventilation port on the top. A blower unit that discharges from the ventilation port, and a drive device that drives the blower unit that is mounted on the top surface of the ventilation port and has a suction port at the front center side of the blade rotation axis direction of the ventilation unit. The blower unit is connected to a power supply line with a lead wire, and is provided with an electrical equipment box composed of an electrical equipment cover and an electrical equipment case for protecting the drive device and the connection portion, and the electrical equipment case is provided on the outer surface. A rib for receiving the electrical cover is provided, and the side wall is configured to have a height that provides a gap with the inner surface of the electrical cover. As a result, the lead wire is arranged in the gap between the side wall of the electrical box and the inner surface of the electrical cover, so that the lead wire in the electrical box may not be caught between the electrical cover and the electrical case. There is an effect that it is possible.

  Moreover, you may make it the structure of bringing the drawing-in opening drawn in to the electrical equipment box of the lead wire and power supply line of a ventilation unit to one side of the side wall of the said ventilation unit, and fixing with a cord clip. As a result, since the power cord and the lead wire of the blower unit are bundled and fixed on one side of the side wall of the blower unit, the workability of wiring is improved and the work is stabilized, and the lead wire in the electrical box Can be prevented from being bitten by the electrical cover and electrical case, and when the lead wire or power cord is pulled (pushed) by an external force, tension is applied to the connection portion of the lead wire or power cord. There is an effect that it can be prevented.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIG. 1 to FIG. 3, a ventilation path 3 that conducts from the interior 1 to the ceiling 2 is provided, a suction port 4 and a flange portion 5 are provided on the bottom surface, and a ventilation port 6 having a plurality of holes on the top surface A box body containing a blower unit 10 composed of a motor 7 and a motor holding plate 8 at the top, and blades 9 inside, for example, a propeller fan unit, specifically, a cylindrical ventilation device 27; A louver 11 that covers and attaches the opening 28 on the bottom from the interior 1 side, for example, a lattice-like louver 11 is attached.

  When the ventilator 27 is operated, the motor 7 is driven and the blades 9 are rotated, so that the air in the room 1 is sucked from the suction port 4 and discharged from the ventilation port 6 to the ceiling back 2.

  A driving device 12 for driving the blower unit 10 mounted on the top surface of the ventilation port 6, the blower unit 10 is connected to a power supply line 14 by a lead wire 13, and the driving device 12, for example, a condenser and a connecting portion 15. For example, an electrical box 18 composed of an electrical cover 16 and an electrical case 17 for protecting a closed end connection and a pillar terminal is provided on the upper portion of the flange portion 5. It has a shape overlapping with the side wall, and can prevent water from entering the electrical box 18 from above due to rain leakage or the like.

  And the rib 19 is provided in the outer direction which receives the electrical equipment cover 16 in the outer surface of the electrical equipment case 17, and it has the structure that a side wall is made into the height which provides a clearance gap between the inner surfaces of the electrical equipment cover 16.

  As a result, the lead wire 13 is disposed in the gap between the side wall of the electrical box 18 and the inner surface of the electrical cover 16, so that the lead wire 13 in the electrical box 18 is connected between the electrical cover 16 and the electrical case 17. It can be prevented from being bitten.

  Even if a situation in which smoke is generated from the drive unit 12 or the connection portion 15 due to some factor in the electrical box 18 as described above, the electrical box 18 is formed of a flame retardant material. It is possible to prevent the material from being burned.

(Embodiment 2)
The same components as those in the first embodiment are denoted by the same reference numerals and detailed description thereof is omitted.

  Further, as shown in FIG. 4, the lead-in port 20 of the blower unit 10 that leads into the electrical box 18 of the lead wire 13 and the power supply line 14 is brought to one side of the side wall of the blower unit 10 and fixed with the cord clip 21. It may be. As a result, the power supply line 14 and the lead wire 13 of the blower unit 10 are bundled and fixed on one side of the side wall of the blower unit 10, so that the workability of the wiring is improved and the work is stabilized, and the electrical box The lead wire 13 in 18 can be prevented from being caught by the electrical cover 16 and the electrical case 17, and when the lead wire 13 or the power supply wire 14 is pulled (pressed) by an external force, the lead wire 13 or It is possible to prevent tension from being applied to the connection portion 15 of the power line 14.

  Alternatively, the driving device positioning rib 22 may be provided on the bottom surface of the electrical case 17 and the driving device 12 may be installed in a space surrounded by the side walls. As a result, the drive device positioning rib 22 and the side wall of the electrical case 17 come into contact with each other to fix the position of the drive device 12, so that the workability of wiring such as the lead wire 13 and the power supply wire 14 is improved. Work can be stabilized.

  Furthermore, as shown in FIG. 5, when water drains into the electrical box 18 by providing a draining rib 23 so that the connection portion 15 does not hit the bottom surface of the electrical case 17 at the bottom of the electrical case 17, It is possible to prevent water from adhering to the connecting portion 15 and to prevent an event that leads to smoke generation due to tracking or the like.

  Further, a drain hole 24 is provided at the bottom of the electrical case 17, for example, the drain hole 24 is a square or round hole of 5 mm or more, and the bottom of the electrical case 17 is drained so that the drain hole 24 becomes lower. In order to create a gap between the bottom of the electrical equipment case 17 and the flange portion 5 by providing a gradient of 5 ° or more, it is possible to intrude when water enters the electrical equipment box 18 by providing the legs 25 in the electrical equipment case. Since the collected water gathers in the drain hole 24 and the water flows out between the bottom of the electrical component case 17 and the flange portion 5, it is possible to prevent water from collecting in the electrical component case 17 and to prevent the water from adhering to the connection portion 15. It is possible to prevent an event that leads to smoke generation by tracking or the like.

  Further, a hook 26 is provided outside the inlet 20 of the power line 14 to the electrical box 18 so as to fasten the power line 14 downward, the hook 26 is covered with the electrical cover 16, and the power line 14 is provided outside the inlet 20. In the unlikely event that water is cut from the lower side to the upper side, even if water adheres to the power line 14, it is prevented from entering the electrical box 18 through the power line 14, and smoke generated by tracking or the like Can be prevented.

  The ventilator according to the present invention is equipped with a drive device that drives a blower unit even in a small ceiling-embedded ventilation fan, an electrical box that protects the device and the connection portion is provided on the outer surface with ribs that receive an electrical component cover, The height of the gap between the cover and the inner surface of the cover makes it possible to prevent the lead wires in the electrical box from being bitten by the upper cover and the lower cover. It is effective for etc.

DESCRIPTION OF SYMBOLS 1 Indoor 2 Ceiling back 3 Ventilation path 4 Suction port 5 Flange part 6 Ventilation part 7 Motor 8 Motor holding plate 9 Blade | wing 10 Blower unit 11 Louver 12 Drive apparatus 13 Lead wire 14 Power supply line 15 Connection part 16 Electrical component cover 17 Electrical component case 18 Electrical component Box 19 Rib 20 Pull-in port 21 Code clip 22 Drive device positioning rib 23 Draining rib 24 Drain hole 25 Leg 26 Hook 27 Ventilator 28 Opening

Claims (2)

A blower unit that is provided with a suction port and a flange portion on the bottom surface and a ventilation port on the top surface, and a blower unit that sucks room air into the box body from the suction port and discharges it from the ventilation port. A drive unit that has a suction port at the front center side of the blade rotation axis direction of the blower unit, drives the blower unit mounted on the top surface of the ventilation port, and the blower unit is connected to a power supply line by a lead wire An electric box comprising an electric cover and an electric case for protecting the drive unit and the connection portion, wherein the electric case is provided with ribs for receiving the electric cover on the outer surface, and the side wall is provided with the electric component A ventilator characterized by a height that provides a gap between the inner surface of the cover. The ventilation device according to claim 1, wherein a lead-in port for drawing the lead wire and the power supply wire of the blower unit into the electrical box is moved to one side of the side wall of the blower unit and fixed with a cord clip.

Images