JP2000121119A - Ventilation fan for pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation fan for a pipe to improve mounting property of a power source connection part and facilitate connection. SOLUTION: A flange part 4 is arranged on the indoor side of a ventilation fan body 2 provided with a fan motor 1 and a recessed part 3 formed on the back side thereof. By mounting the power source connection part 5 rotably around one end, serving as a support point, of the power source connection part, no screw is used in mounting of the power source connection part 5. The mounting property is improved, and during connection of a power power source, the source connection part 5 is caused to rise for connection and connection of the power source is facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilating fan for a pipe provided with a power supply connecting portion electrically connected to a fan motor provided in a ventilating fan body.

[0002]

2. Description of the Related Art In recent years, with the spread of a pipe ventilation fan mounted on a ventilation pipe or the like provided on a wall portion or a ceiling portion for ventilation, a power supply connection portion connected to a fan motor provided on the ventilation fan body has been provided. There has been an increasing demand for improving the attachment property when attaching to a flange portion and the workability of connection with a power supply connection section.

Conventionally, an example of this type of pipe ventilation fan shown in FIG. 11 has been known. Hereinafter, the configuration will be described with reference to FIG.

[0004] As shown in the figure, a concave portion 103 is provided on the rear side of a ventilation fan main body 102 provided with a fan motor 101.
Is formed, and the fan motor 10 is provided.
The power supply connection portion 105 electrically connected to the power supply device 1 is mounted on a mounting boss 106 provided in the concave portion 103 of the flange portion 104 by a mounting screw 107, and a power supply is connected to the power supply connection portion 105 at a construction site.

[0005]

In such a conventional pipe ventilation fan, the power supply connection portion 105 is attached to the recess 103 of the flange portion 104 with the attachment screw 107.
The mounting screw 107 must be tightened and attached using a tool such as a screwdriver, so that the mounting property is poor, and the connection with the power supply must be made in a narrow portion of the concave portion 103, so that the connection workability is poor and the work is troublesome. There was a problem that.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and eliminates the need for using a tool to attach a power supply connection portion, thereby improving the attachment property, and also improving the connection workability and facilitating construction. It is intended to provide a ventilation fan.

[0007]

According to the present invention, there is provided a ventilation fan for a pipe according to the present invention, wherein the ventilation fan is provided with a concave portion on the rear surface provided on the indoor side of a fan main body provided with a fan motor, and is housed in the concave portion of the flange portion. And a power supply connection portion electrically connected to the fan motor, wherein the power supply connection portion is rotatably provided on the flange portion with one end serving as a fulcrum.

According to the present invention, there is provided a ventilation fan for a pipe which can improve the mounting property by eliminating the necessity of using a tool for mounting the power supply connection part, and can improve the connection workability and facilitate the construction. be able to.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a ventilating fan body provided with a fan motor, a flange portion having a concave portion formed on the back side provided on the indoor side, and housed in the concave portion of the flange portion. And a power supply connection portion electrically connected to the fan motor, wherein the power supply connection portion is rotatably provided on the flange portion with one end serving as a fulcrum. Yes, when the power supply is connected, the power supply connection part is turned upright to expose the power supply connection part of the power supply connection part to the outside of the recess of the flange part, thereby facilitating connection with the power supply. Can be.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
This will be described with reference to FIG.

(Embodiment 1) As shown in FIGS. 1 and 2, on the indoor side of a ventilation fan main body 2 provided with a fan motor 1, a flange portion 4 having a concave portion 3 formed on the back surface side is provided. A pair of support pins 6 are provided on the flange portion 4 so as to rotatably support one end of a power supply connection portion 5 electrically connected to the fan motor 1 in a shape accommodated in the concave portion 3 of the fan motor 1. A support piece 7 is provided, and an engagement portion (not shown) of the support pin 6 is provided at one end of the power supply connection portion 5.

In the above configuration, when the power supply connection portion 5 is attached to the flange portion 4, the power supply connection portion 5 is pressed between the pair of support pieces 7 so that the support piece 7 opens elastically and is provided on the support piece 7. The support pins 6 are engaged with the engagement portions of the power supply connection portion 5, and the power supply connection portion 5 is rotatably supported and mounted.

When a power supply is connected to the power supply connection portion 5, the power supply connection portion 5 is turned upright with the support pin 6 as a fulcrum, and the power supply connection portion of the power supply connection portion 5 is connected to the flange portion 4.
The power supply is connected in a state where it is exposed from the concave portion 3, and then the power supply connection portion 5 is tilted and stored in the concave portion 3, and then the ventilation fan main body 2 is mounted.

As described above, according to the pipe ventilation fan of the first embodiment of the present invention, the power supply connection having a shape housed in the concave portion 3 of the flange portion 4 provided with the concave portion 3 on the back surface provided in the ventilation fan main body 2. Since the flange 5 is rotatably provided with one end of the portion 5 as a fulcrum, the power supply connection 5 can be mounted in the recess 3 of the flange 4 without using a tool or the like.
Further, when connecting to the power supply, the power supply connection portion 5 can be turned upright to expose the connection portion of the power supply from the concave portion 3.
Connection of the power supply becomes easy.

(Embodiment 2) As shown in FIG. 3 and FIG. 4, a power supply connection portion rotatably supported at one end by a support pin 6 of a support piece 7 provided in a concave portion 3 of a flange portion 4 as a fulcrum. 5
The power supply connection part 5 is located in the recess 3 by a holding means 11 having a pair of holding pieces 10 having a claw 9 protruding inward at the tip and having a shape for sandwiching the power supply connection part 5. It is configured so as to be able to hold when stored in.

In the above configuration, the concave portion 3 of the flange portion 4
When a power supply is connected to the power supply connection unit 5 housed in the power supply unit, the power supply is connected in a state where the power supply connection unit 5 is turned upright and detached from the holding means 11 holding the power supply connection unit 5. After the power is connected, the power supply connection part 5 is tilted down so as to be held by the holding means 11, and the holding piece 1 of the holding means 11 is held.
After the power supply connection part 5 is stored in the concave part 3 of the flange part 4, the ventilation fan main body 2 is mounted.

As described above, according to the pipe ventilation fan according to the second embodiment of the present invention, the anti-rotation fulcrum side 8 of the power supply connection portion 5 is detachably held by the holding means 11.
When connecting a power supply to the power supply connection unit 5,
Is detached from the holding means 11 and raised, the connection of the power supply can be easily performed. After the power supply is connected, the power supply connection section 5 is tilted down so as to be held by the holding means 11 so that the power supply connection section 5 can be connected. It is stored and held in the concave portion 3 of the flange portion 4 via the holding means 11, and it is possible to prevent the power supply connection portion 5 from protruding from the flange portion 4 when the ventilation fan main body 2 is installed and difficult to perform.

In the second embodiment, the holding means 11 is constituted by the holding pieces 10 having the claws 9, but it is needless to say that the holding means 11 is not limited to the structure of the second embodiment.

(Embodiment 3) As shown in FIGS. 5 and 6, a power supply connection portion rotatably supported at one end by a support pin 6 of a support piece 7 provided in a concave portion 3 of a flange portion 4 as a fulcrum. 5
On the anti-rotation fulcrum side 8 of A, a finger hook portion 12 for erecting the power supply connection portion 5A is provided and configured.

In the above configuration, the concave portion 3 of the flange portion 4
When a power supply was connected to the power supply connection part 5A housed in the inside, a finger was put on a finger hook part 12 provided on the anti-rotation fulcrum side 8 of the power supply connection part 5A, and the power supply connection part 5A was turned upright while rotating. After connecting the power supply in this state and connecting the power supply, the power supply connection portion 5A is housed in the recess 3 of the flange portion 4.

As described above, according to the pipe ventilation fan according to the third embodiment of the present invention, the finger hook portion 12 for raising the power supply connection portion 5A is provided on the anti-rotation fulcrum side 8 of the power supply connection portion 5A. When the power supply is connected to 5A,
A power supply connection part 5 for facilitating connection of a power supply to A
The work for erecting A can be easily performed.

In the third embodiment, the power supply connecting portion 5A which does not hold the anti-rotation fulcrum side 8 is used. However, the present invention is also applicable to the case where the holding means is provided as in the second embodiment. It goes without saying that you can do it.

(Embodiment 4) As shown in FIGS. 7 and 8, a power supply connection portion rotatably supported at one end with a support pin 6 of a support piece 7 provided in a concave portion 3 of a flange portion 4 as a fulcrum. 5
In the concave portion 3 near the fulcrum-side end portion 13, the fulcrum-side end portion 1 of the power supply connection portion 5 is controlled so as to regulate the rotation range of the power supply connection portion 5.
3 is provided and configured to have a restricting means 14 having a shape with which the abutment 3 contacts.

In the above configuration, the concave portion 3 of the flange portion 4
When connecting the power supply to the power supply connection part 5 housed in the power supply unit 5, the power supply connection part 5 is rotated through a fulcrum so as to stand up, and the fulcrum-side end 13 of the power supply connection part 5 is regulated
And the power supply connection part 5 is regulated so as not to rotate any more.

At this time, the power connection 5 is connected to the fan motor 1
When the power supply connection portion 5 rotates to a predetermined range or more, the connection of the cord or the like electrically connected to the fan motor 1 is cut off. The disconnection of the electrical connection due to the regulation by the regulation means 14 can be prevented.

As described above, according to the pipe ventilation fan of the fourth embodiment of the present invention, since the restricting means 14 for restricting the rotation range of the power supply connection portion 5 is provided, the power supply can be easily connected to the power supply connection portion 5. In order to be able to do so, when the power supply connection part 5 is turned to stand up, the fulcrum-side end 1 of the power supply connection part 5
The rotation of the fan motor 1 is restricted by the contact of the fan motor 1 with the power supply connecting portion 5 and the electrical connection is cut off. Can be prevented.

According to the pipe ventilation fan of the fourth embodiment, the restricting means 14 for restricting the rotation range of the power supply connecting portion 5 is described.
Is configured to abut on the fulcrum-side end 13 of the power supply connection portion 5, but the configuration is not limited to the configuration of the fourth embodiment, and the point is that the rotation range of the power supply connection portion 5 can be restricted. Needless to say, it is good.

(Embodiment 5) As shown in FIGS. 9 and 10, a flange portion 4A having a concave portion 3 formed on the back side provided on the indoor side of a ventilation fan main body 2 provided with a fan motor 1 is provided.
And a power supply connection portion 5B electrically connected to the fan motor 1 by a cord or the like. The power supply connection portion 5B is provided with concave holes 15 on both sides thereof. 3 has a concave hole 15 in which the power supply connection portion 5B is juxtaposed.
Is provided with an engaging piece 17 having a convex portion 16 which engages with the concave hole 1.
The engaging means 18 is constituted by the projections 5 and the projections 16, and the power supply connection portion 5B is detachably held in the recess 3 of the flange portion 4A.

In the above configuration, when the power supply connection portion 5B is housed and held in the concave portion 3 of the flange portion 4A, the concave hole 15 provided in the power supply connection portion 5B has the convexity of the engaging piece 17 provided in the concave portion 3 of the flange portion 4A. The power supply connection portion 5B is inserted between the engagement pieces 17 so as to engage with the portion 16, and the power supply connection portion 5B is elastically held by the engagement means 18.

When the ventilating fan main body 2 is installed on the site, the power supply connecting portion 5B housed in the recess 3 of the flange portion 4A is disengaged from the engaging means 18 so that the engaging means 18 is disengaged. After removing against elasticity,
A power supply is connected to the power supply connection portion 5B, and the power supply connection portion 5B is held by the engagement piece 17 via the engagement means 18 so as to be housed in the recess 3 of the flange portion 4A.

As described above, according to the pipe ventilation fan according to the fifth embodiment of the present invention, the engaging means 18 including the convex portions 16 engaging with the concave holes 15 provided on both side surfaces of the power supply connection portion 5B is provided. Since the engaging piece 17 is formed in the concave portion 3 provided in the flange portion 4A and holds the power supply connection portion 5B detachably, a mounting screw or the like fixing the power supply connection portion 5B protrudes from the upper surface of the power supply connection portion 5B. As compared with the case, the storage height of the power supply connection portion 5B can be reduced, and accordingly, the height of the flange portion 4A can be reduced, so that the amount of protrusion into the room can be reduced, and the mounting screws can be reduced. The fixing of the power supply connection portion 5B can be facilitated as compared with the case where the fixing is performed by using the method described above.

[0032]

As is apparent from the above embodiments, according to the present invention, a flange having a concave portion formed on the back side provided on the indoor side of the ventilation fan body provided with the fan motor, and a concave portion of the flange portion are provided. A power connection part electrically connected to the fan motor in a housed shape; and the power connection part is rotatably provided on the flange part with one end serving as a fulcrum. And a pipe ventilation fan that can be easily connected to the pipe.

Further, since the anti-rotation fulcrum side of the power supply connection portion is detachably held by the holding means, the power supply connection portion can be securely fixed without using screws.

Further, since the finger hook for raising the power supply connection portion is provided on the side opposite to the pivot point of the power supply connection portion, the work of raising the power supply connection portion when the power supply is connected can be easily performed.

Further, since the regulating means for regulating the rotation range of the power supply connection portion is provided, it is possible to prevent the cord or the like electrically connected to the fan motor from being disconnected by preventing tension from being applied. Can be.

Further, a flange portion provided on the rear side provided on the indoor side of the ventilation fan main body provided with the fan motor, and a shape accommodated in the recessed portion of the flange portion are electrically connected to the fan motor. A power supply connection portion, and engagement pieces that engage with both side surfaces of the power supply connection portion via engagement means are provided on the flange portion, and the power supply connection portion is detachably held. The storage height of the connection portion can be reduced, and the flange portion can be thinned, and the fixing can be facilitated.

[Brief description of the drawings]

FIG. 1 is a partially broken perspective view showing a configuration of a pipe ventilation fan according to a first embodiment of the present invention.

FIG. 2 is a side view showing a rotating state of a power supply connection portion of the pipe ventilation fan.

FIG. 3 is a partially broken perspective view showing a configuration of a pipe ventilation fan according to a second embodiment of the present invention.

FIG. 4 is a side view showing a holding state of a power supply connection portion of the pipe ventilation fan.

FIG. 5 is a partially broken perspective view showing a configuration of a pipe ventilation fan according to a third embodiment of the present invention.

FIG. 6 is a side view showing a configuration of a power supply connection portion of the ventilation fan for the pipe.

FIG. 7 is a partially broken perspective view showing a configuration of a pipe ventilation fan according to a fourth embodiment of the present invention.

FIG. 8 is a side view showing a configuration of a regulating means of a power supply connection portion of the pipe ventilation fan.

FIG. 9 is a perspective view showing a state in which a power supply connection portion of a pipe ventilation fan according to a fifth embodiment of the present invention is removed.

FIG. 10 is a partially broken perspective view showing the configuration of the pipe ventilation fan.

FIG. 11 is a partially broken perspective view showing a configuration of a conventional pipe ventilation fan.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fan motor 2 Ventilation fan main body 3 Concave part 4 Flange part 4A flange part 5 Power supply connection part 5A power supply connection part 5B power supply connection part 8 Counter-rotation fulcrum side 11 Holding means 12 Finger hook part 13 Support point side end part 14 Regulation means 17 Engagement piece 18 Engagement means

Continuation of the front page (72) Inventor Osamu Okugawa 6-61 Imafukunishi, Joto-ku, Osaka-shi, Osaka Matsushita Seiko Co., Ltd. F term (reference) 3L058 BD01 BG05

Claims (5)

[Claims] A flange portion having a concave portion formed on a rear surface side provided on the indoor side of a ventilation fan main body provided with a fan motor;
A power connection portion electrically connected to the fan motor in a shape housed in the recess of the flange portion, for a pipe having the power connection portion rotatably provided on the flange portion with one end serving as a fulcrum; Ventilation fan. 2. The pipe ventilation fan according to claim 1, wherein the power supply connection portion is detachably held by the holding means on a side opposite to the rotation fulcrum. 3. The ventilation fan for a pipe according to claim 1, further comprising a finger-holding portion for raising the power supply connection portion on a side opposite to the pivot point of the power supply connection portion. 4. The pipe ventilation fan according to claim 1, further comprising a regulation means for regulating a rotation range of the power supply connection portion. 5. A flange portion having a concave portion formed on a rear surface side provided on the indoor side of a ventilation fan main body provided with a fan motor,
A power supply connection portion electrically connected to the fan motor in a shape housed in the recess of the flange portion; and an engagement piece engaged with both side surfaces of the power supply connection portion via engagement means. A pipe ventilation fan provided on a flange portion and configured to detachably hold the power supply connection portion.