JP2012041834A - Ceiling fan - Google Patents

Abstract

The present invention provides a ceiling fan in which the ceiling fan main body is less likely to rotate and swing, and the user is less likely to feel uneasy.
A high-pressure air generator mounting means for attaching a high-pressure air generator to a ceiling fixture is provided on both sides, and the high-pressure air generator attached means has a motor for moving the high-pressure air generator to the ceiling fixture. Since the motor 7 is attached to the ceiling fixture 12 by rotating in the direction opposite to the rotation direction of the motor 7, the motor 7 is attached to the high-pressure air generator 8. The ceiling fixture 12 and the high-pressure air generator 8 are firmly engaged and fixed even when a reaction force is applied to the ceiling fan. A ceiling fan that is difficult to give can be provided.
[Selection] Figure 3

Description

  The present invention relates to a ceiling fan that is installed on a ceiling and is used for reducing the temperature of the sensible temperature caused by direct wind or circulating indoor air.

  Conventionally, this type of ceiling fan is known to have a structure in which a mounting bracket to be mounted on the ceiling is formed so as to cover the fan body of the ceiling fan in a strip shape, and is suspended from the ceiling so that the fan body is held by the mounting bracket. (For example, refer to Patent Document 1).

  Hereinafter, the ceiling fan will be described with reference to FIG. Fig.7 (a) is a schematic sectional drawing showing the structure of the conventional ceiling fan, FIG.7 (b) is a schematic perspective view showing the attachment method of the circulation fan and ceiling mounting bracket of the conventional ceiling fan.

  As shown in FIG. 7A, the ceiling fan body 101 holds the motor mounting bracket 105 to which the blower motor 104 provided at the lower part of the circulating blower 102 is fixed by the ceiling mounting bracket 103 for mounting the circulation blower 102 on the ceiling. It becomes the structure which supports. As shown in FIG. 7B, the motor mounting bracket 105 and the ceiling mounting bracket 103 are not fixed, and the motor mounting bracket 105 is placed on the ceiling mounting bracket 103.

  Next, the operation will be described. The air sucked into the circulation fan 102 by driving the blower motor 104 is blown out from an outlet 106 provided on the side surface of the circulation fan 102. At this time, since the ceiling mounting bracket 103 and the circulation blower 102 are not fixed, the air blowing direction can be changed by rotating the circulation blower 102.

Japanese Patent Laid-Open No. 2002-130186

  In general, in order to generate high-pressure air by a blower, it is necessary to rotate the impeller at high speed, and it is necessary to use a motor having a large torque in order to perform high-speed rotation. Therefore, when the generated torque of the motor is changed, such as when the operation is started or the rotational speed is changed, a large reaction force from the motor is applied to the ceiling fan body.

  In the configuration shown in the conventional example, since the blower is not fixed to the ceiling mounting bracket, the ceiling fan body easily rotates and swings due to the reaction force in the case described above, and the user feels uneasy. It was easy to give.

  Therefore, the present invention solves the above-described conventional problems, and provides a ceiling fan that hardly causes rotation and swinging of the ceiling fan body even when the torque generated by the motor is changed, and does not cause anxiety to the user. It is for the purpose.

  In order to achieve this object, the present invention includes a high-pressure air generating unit mounting means for locking the ceiling fixture and the high-pressure air generating unit, and the high-pressure air generating unit mounting unit is configured to It is characterized by being rotated and locked in a direction opposite to the direction of rotation of this, thereby achieving the intended purpose.

  According to the present invention, it is possible to provide an effect that it is possible to provide a ceiling fan that hardly causes rotation or swinging of the ceiling fan body even when the generated torque of the motor is changed, and that does not give a sense of anxiety to the user.

The schematic perspective view showing the state which attached the ceiling fan main body in this invention to the ceiling Schematic sectional view showing the internal configuration of the ceiling fan in the first embodiment of the present invention (A) The schematic perspective view showing the rotation direction of the impeller of the high pressure air generation part, (b) The schematic perspective view showing the attachment operation by the high pressure air generation part attachment means (A) Schematic sectional view showing the mounting state of the guide groove and the projection of the high-pressure air generating part mounting means, (b) Expressing the other mounting state of the guide groove and the projection of the high-pressure air generating part mounting means Schematic cross section (A) Schematic sectional view showing the matching state of the convex part and the concave part of the high-pressure air generating part mounting means, (b) Schematic cross-sectional view showing another matching state of the convex part and the concave part of the high-pressure air generating part mounting means Schematic sectional view of a ceiling fan in Embodiment 2 of the present invention Schematic sectional view showing the structure of a conventional ceiling fan

  The ceiling fan according to claim 1 of the present invention includes a suction port for taking air into the box, and an impeller for generating high-pressure air and a high-pressure air generating means including a motor for driving the impeller. A high-pressure air generating section provided, an air-flow blowing section having a blow-out port that blows out high-pressure air as an air flow, and a connecting duct that communicates the high-pressure air generating section and the air-flow blowing section. The high-pressure air generator is a ceiling fan that is attached to the ceiling via the ceiling fixture, and the high-pressure air generator attachment means for attaching the high-pressure air generator to the ceiling fixture is provided on both the ceiling fixture and the high-pressure air generator. The high-pressure air generator can be attached by rotating the high-pressure air generator with respect to the ceiling fixture in the direction opposite to the rotation direction of the motor.

  In general, a centrifugal impeller such as a turbo fan or a sirocco fan is used to generate high-pressure air. These impellers can generate high-pressure air by rotating in a single direction determined by the shape of the blade formed on the impeller by a motor. When these impellers are used, the rotational direction of the motor is determined in a single direction depending on the blade shape of the impeller used, so the torque generated when the motor is started or when the rotational speed is changed is applied to the high-pressure air generator. Thus, the direction of the reaction force applied in the direction opposite to the rotation direction of the motor is a single direction.

  Here, the ceiling fan in the present invention has a configuration in which the high-pressure air generator is attached to the ceiling fixture by rotating the high-pressure air generator in the direction opposite to the rotation direction of the motor. Even if a reaction force is applied from the motor, the direction of the reaction force is the same as the mounting direction.

  As a result, the ceiling fixture and the high-pressure air generating part are firmly engaged and fixed, so that the ceiling fan body does not easily rotate or swing when the motor is started or the rotational speed is changed. There is an effect that it is possible to provide a ceiling fan that does not give a feeling.

  Further, the high-pressure air generation part mounting means includes a support part for supporting the high-pressure air generation part provided in the ceiling fixture, a protrusion formed on the support part, a guide groove formed on the high-pressure air generation part, It may be constituted by. As a result, the high pressure air generating part can be rotated while supporting the weight of the high pressure air generating part by the support part so that it does not fall and the projecting part is aligned with the guide groove and the projecting part is along the guide groove. The mounting work is easy to perform, and the contact portion between the projection and the guide groove is increased, so that rattling is suppressed and the ceiling fan main body is less likely to swing.

  Further, the high-pressure air generation part mounting means includes a support part for supporting the high-pressure air generation part provided in the ceiling fixture, a guide groove formed in the support part, a protrusion formed in the high-pressure air generation part, It may be constituted by. As a result, the high pressure air generating part can be rotated while supporting the weight of the high pressure air generating part by the support part so that it does not fall and the projecting part is aligned with the guide groove and the projecting part is along the guide groove. The mounting work is easy to perform, and the contact portion between the projection and the guide groove is increased, so that rattling is suppressed and the ceiling fan main body is less likely to swing.

  Further, the protrusion may be formed with a recess, and the guide groove may have a protrusion corresponding to the recess. Thereby, since a feeling of catching occurs at the time of attachment, it is possible to notify the installer that the attachment is surely performed, and there is an effect that the attachment work to the ceiling is easy.

  Moreover, it is good also as a structure which a convex part is formed in a projection part and has a recessed part corresponding to the said convex part in a guide groove. Thereby, since a feeling of catching occurs at the time of attachment, it is possible to notify the installer that the attachment is surely performed, and there is an effect that the attachment work to the ceiling is easy.

  Moreover, you may comprise a convex part with a spring member. Accordingly, it is possible to give a feeling of catching and more firmly engage and fix each other, so that it is possible to further prevent the ceiling fan body from rotating and swinging.

  Further, the high-pressure air generating part mounting means may be configured such that the high-pressure air generating part and the ceiling fixture are locked by a screw mechanism. As a result, a force is applied in the direction in which the screw is tightened by the reaction force of the motor torque, and since the movement in the vertical direction is restricted because the threads come into contact with each other, the swing of the ceiling fan body is further less likely to occur. In addition, since screw processing is relatively inexpensive, the cost can be reduced.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, what is shown below is only an example of embodiment in this invention, and if it makes an equivalent effect, it will not be restricted to this.

(Embodiment 1)
First, the first embodiment will be described with reference to FIGS. FIG. 1 is a schematic perspective view showing a state in which the ceiling fan body in the present invention is attached to the ceiling, FIG. 2 is a schematic sectional view showing the internal configuration of the ceiling fan in Embodiment 1 of the present invention, and FIG. FIG. 3B is a schematic perspective view showing the rotation direction of the impeller of the high-pressure air generating unit in the embodiment, and FIG. 3B is a mounting operation of the ceiling fixture and the high-pressure air generating unit by the high-pressure air generating unit mounting unit in the same embodiment. 4 is a schematic perspective view showing, FIG. 4 is a schematic sectional view showing the attachment state of the guide groove and the protrusion of the high-pressure air generating part mounting means in the same embodiment, FIG. 5 is a high-pressure air generating part mounting means in the same embodiment The schematic sectional drawing showing the matching state of a convex part and a recessed part of is shown.

  As shown in FIG. 1, the ceiling fan body 1 in the present embodiment is attached to a ceiling 2 of a living room or bedroom, and a commercially available lighting fixture 3 is attached to the lower part of the ceiling fan body 1. .

  As shown in FIG. 2, the ceiling fan body 1 includes a suction port 5 for taking air into a substantially cylindrical box 4, an impeller 6 for generating high-pressure air, and a motor 7 for driving the impeller 6. The high-pressure air generating unit 8 provided with the high-pressure air generating means configured as described above, the air-flow blowing unit 10 having the blow-out port 9 for blowing out the high-pressure air as an air flow, and the high-pressure air generating unit 8 and the air-flow blowing unit 10 communicate with each other. The air flow blowing part 10 1 has a ring shape, and the high pressure air generating part 8 is attached to the ceiling via the ceiling fixture 12.

  Further, the ceiling fan body 1 is provided with a high-pressure air generating part mounting means 13 for attaching the high-pressure air generating part 8 to the ceiling fixture 12, and the high-pressure air generating part mounting means 13 uses the high-pressure air generating part 8 as a motor. 7 is attached by rotating it in the direction opposite to the rotation direction. The ceiling fixture 12 is made of, for example, a metal such as stainless steel or aluminum and is fixed to the ceiling 2 with screws or the like, or a hooking ceiling (not shown) provided on the ceiling 2 for attaching a lighting member. Is attached.

  As shown in FIG. 3A, a plurality of support portions 14 for supporting the high-pressure air generating portion 8 so as not to fall on the ceiling fixture 12 are formed in a substantially L shape. On the other hand, an annular plate-like flange portion 15 is formed on the upper portion of the box 4 of the high-pressure air generating portion 8, and a notch portion 16 for passing the support portion 14 in the vertical direction is formed in a part thereof. Has been.

  In addition, as shown in FIG. 3B, the impeller 6 provided in the box 4 as high-pressure air generating means is rotated in the counterclockwise direction (dashed arrow) as viewed from vertically above as an example in the present embodiment. A turbo fan designated as 17) is used. Then, returning to FIG. 3A, when the high-pressure air generator 8 is attached to the ceiling fixture 12, the notch 16 of the box 4 is matched with the support portion 14 of the ceiling fixture 12 attached to the ceiling. Then, the upper surface of the flange portion 15 is applied to the lower surface 18 of the ceiling fixture 12, and a clockwise direction (a broken line arrow 19) as viewed from the vertical direction that is opposite to the rotation direction of the motor 7, that is, the rotation direction of the impeller 6. ) To rotate the high-pressure air generator 8.

  At this time, as shown in FIG. 4A, the protrusion 20 formed on the support portion 14 and the substantially arcuate guide groove 21 formed on the high-pressure air generation portion 8 are matched to each other to match the high-pressure air generation portion. At this time, since the protrusion 20 can be rotated along the guide groove 21, the attachment work is facilitated.

  Further, as shown in FIG. 5A, a concave portion 22 is provided on the top portion of the protruding portion 20, while a convex portion 23 corresponding to the concave portion 22 is provided in the guide groove 21. Yes. The concave portion 22 and the convex portion 23 are arranged so as to exactly coincide with each other when the projecting portion 20 and the end portion 24 of the guide groove 21 come into contact with each other by rotating the high-pressure air generating portion 8. Moreover, the convex part 23 is comprised by the elastic member, for example, the spring member formed with resin, a metal, etc. The convex portion 23 is deformed by the elastic force of the spring member, the convex portion 23 rotates while being in contact with the top portion 25 of the projecting portion 20, and the convex portion 23 and the concave portion 22 are aligned and firmly fixed. Since a feeling arises, it can inform a user that it is securely attached.

  Next, the operation of the ceiling fan according to Embodiment 1 of the present invention will be described.

  When the motor 7 is driven to rotate the impeller 6, the air sucked from the suction port 5 is boosted by the high-pressure air generator 8, and the high-pressure air is converted into a high-speed jet from the outlet 9 and released into the space. Is done. When air flows along the wall surface of the air flow blowing unit 10 when the high-speed jet jetted from the outlet 9 flows, the surrounding air is entrained by the viscosity of the air due to the attracting effect of the adhering jet, and a large amount of air is separated from the ceiling. Flowing.

  Here, when the motor 7 is started or when the rotation speed is changed, the torque generated from the motor 7 causes the direction opposite to the rotation direction of the motor 7 with respect to the high-pressure air generator 8 as shown in FIG. A reaction force is applied to (solid arrow 26). At this time, a force is applied by the above-described high-pressure air generating portion mounting means 13 so that the protruding portion 20 of the ceiling fixture 12 is pressed against the end portion 24 of the guide groove 21 of the high-pressure air generating portion 8. The guide groove 21 is firmly engaged and fixed. Furthermore, the protrusion 20 and the guide groove 21 come into contact with each other to prevent backlash. Further, the spring member as the convex portion 23 and the concave portion 22 are firmly engaged and fixed. Due to the above action, the ceiling fan body 1 is less likely to rotate or swing.

  The protrusion 20 and the guide groove 21 may be provided interchangeably, that is, as shown in FIG. 4B, the guide groove 21 is provided in the ceiling fixture 12 and the protrusion 20 is provided in the high-pressure air generator 8. However, the same effect is obtained.

  Note that the convex portion 23 and the concave portion 22 may be provided interchangeably, that is, as shown in FIG. 5B, the concave portion 22 is formed in the guide groove 21 of the high-pressure air generating portion 8, and the protruding portion 20 of the ceiling fixture 12. Even if the convex part 23 is provided on the same, the same effect can be obtained.

  As described above, in the ceiling fan according to the first embodiment of the present invention, the ceiling fan body does not easily rotate or swing even when the motor is started or the rotational speed is changed, and the user is less likely to feel uneasy. The effect that a ceiling fan can be provided can be acquired.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected about the component similar to Embodiment 1, and the detailed description is abbreviate | omitted. FIG. 6A is a schematic cross-sectional view of a ceiling fan according to the second embodiment of the present invention, and FIG. 6B is a schematic perspective view showing the configuration of the high-pressure air generating unit mounting means in the same embodiment.

  As shown in FIGS. 6 (a) and 6 (b), the upper end portion of the box 4 of the high-pressure air generation unit 8 is provided with a screw portion 27 in which a male screw or a female screw is formed. On the other hand, the ceiling fixture 12 is provided with a screw portion 28 corresponding to the screw portion 27 described above. These threaded portions 27 and 28 are threaded in a direction to be tightened by rotating the high-pressure air generating unit 8 in the direction opposite to the rotational direction of the motor. By attaching the high-pressure air generating part 8 to the ceiling fixture 12 by matching the screw parts 27 and 28, the ceiling fan body is not easily dropped because the screw tightening stroke is long, and the upper and lower parts are brought up and down by contact between the screw threads. The movement in the direction is limited and it becomes difficult to swing. Moreover, since the screw processing is inexpensive, the cost can be reduced.

  Next, the operation of the ceiling fan according to Embodiment 2 of the present invention will be described. As in the case of the first embodiment, a reaction force from the motor is applied to the high-pressure air generator 8. At this time, since the high-pressure air generator 8 and the ceiling fixture 12 are configured to be rotated and rotated in the direction opposite to the rotation direction of the motor, a force acts in the direction in which the reaction force further tightens each other. The fan body is less likely to swing.

  As described above, the ceiling fan according to the second embodiment of the present invention is unlikely to cause the rotation or swinging of the ceiling fan body even when the motor is started or the number of rotations is changed, and it is difficult for the user to feel uneasy. The effect that a ceiling fan can be provided can be acquired.

  The ceiling fan according to the present invention provides a ceiling fan that is less likely to cause rotation and swinging of the ceiling fan body even when the torque generated by the motor is changed, and is less likely to cause anxiety to the user. It is useful as various blower devices used for the purpose of stirring indoor air.

DESCRIPTION OF SYMBOLS 1 Ceiling fan main body 5 Suction port 6 Impeller 7 Motor 8 High pressure air generation part 9 Blowing port 10 Air flow blowing part 11 Connection duct 12 Ceiling fixture 13 High pressure air generation part attachment means 14 Support part 20 Protrusion part 21 Guide groove 22 Concave part 23 Convex

Claims (7)

A suction port for taking air into the box,
An impeller for generating high-pressure air;
High pressure air generating means composed of a motor for driving the impeller;
A high-pressure air generator provided with
An air flow blowing unit having a blow-out port for blowing out high-pressure air as an air flow;
A connecting duct communicating the high-pressure air generating part and the air flow blowing part;
The air flow outlet is ring-shaped,
The high-pressure air generator is a ceiling fan attached to the ceiling via a ceiling fixture,
A high-pressure air generator mounting means for mounting the high-pressure air generator on the ceiling fixture is provided in both the ceiling fixture and the high-pressure air generator.
The ceiling fan, wherein the high-pressure air generating part mounting means can be mounted by rotating the high-pressure air generating part to the ceiling fixture in a direction opposite to the rotation direction of the motor. The high-pressure air generator mounting means is
A support part for supporting the high-pressure air generating part provided in the ceiling fixture;
A protrusion formed on the support;
A guide groove formed in the high-pressure air generator,
The ceiling fan according to claim 1, comprising: The high-pressure air generator mounting means is
A support part for supporting the high-pressure air generating part provided in the ceiling fixture;
A guide groove formed in the support part;
A protrusion formed on the high-pressure air generator;
The ceiling fan according to claim 1, comprising: The ceiling fan according to claim 2 or 3, wherein a concave portion is formed in the protruding portion, and the guide groove has a convex portion corresponding to the concave portion. The ceiling fan according to claim 2, wherein a protrusion is formed on the protrusion, and the guide groove has a recess corresponding to the protrusion. The ceiling fan according to claim 4 or 5, wherein the convex portion is constituted by a spring member. 2. The ceiling fan according to claim 1, wherein the high-pressure air generating portion mounting means is configured such that the high-pressure air generating portion and the ceiling fixture are locked by a screw mechanism.

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