JP2014125885A - Ceiling fan - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ceiling fan which eliminates a decrease of a sensible temperature and discomfort caused by a time for making room temperature uniform, and a direct air generated by a linear downward air jet at heating.SOLUTION: In the ceiling fan in which a main body 1 has mounting means 2, an electric motor 4 connected to a fixed shaft 3 and a plurality of blades 5 connected to the electric motor 4, and the blades send air by rotating together with the electric motor 4, the ceiling fan comprises: air flow induction means 6 which is a plate body formed so that its upper end 7 and lower end 8 are separated from the blades at the outside of the blades 5, and in which the upper end 7 of the plate body is inclined to the center side of rotating faces of the blades 5, and the lower end 8 is inclined to the outside of the blades 5; induction rotating means 11 for rotating a position of the air flow induction means 6 along the circumferential direction of the blades; detection means 14 for detecting a wall existing around the ceiling fan; and control means 15. The ceiling fan makes the room temperature uniform by circulating air along a wall face in a room by an air flow of the ceiling fan.

Description

  The present invention relates to a ceiling fan used for indoor air circulation.

  Conventionally, as this type of blower, a plurality of blowers are arranged vertically downward in combination with an air conditioner in the room, and a jet is dropped from each blower toward the lower floor surface to constitute a circulation area for each blower. Thus, it has been known that the temperature difference between the air near the ceiling of the room and the floor surface is remarkably reduced to make the temperature uniform throughout the room (for example, see Patent Document 1).

  Hereinafter, the indoor uniform method of heating air will be described with reference to FIG.

  As shown in FIG. 7, in a factory, office, house, or the like where a heater 101 is arranged to heat a room, a small blower 104 holding a blower tube 103 at the front is provided on the ceiling surface of the room 102. Each fixed point corresponding to the ceiling area every six fixed points, for example, one fixed point around the ceiling area of 15m2, is arranged vertically downward, operates, rises during heating and rises to the ceiling lower surface Heating air taken in for each small blower 104 from the uniform heating layer that spreads and stays at a high speed is the initial speed close to the same numerical value as the ceiling height, for example, a small blower when the ceiling height is 2.5 m The initial speed of 104 is about 2.5 m / s, jetted linearly downward from the tip of the blow cylinder, and each fixed point position is a warm air mass with a speed of at least 0.2 m / s reaching the floor surface. Let fall from By creating a warm air circulation that circulates up and down the room at each fixed point position, the temperature difference between the ceiling and floor surface of the entire room is significantly reduced, and with less heating calories, The temperature was made uniform.

JP-A-10-267334

  In the conventional indoor air heating method shown in FIG. 7, the temperature of the room farthest from the air conditioner is hindered from being circulated by the air flow due to the mechanical equipment arranged on the floor because it jets downward linearly. It takes time to make it uniform, and since it jets downward linearly during heating, there is a problem that it feels cold and uncomfortable due to direct wind, and a comfortable room temperature environment is required.

  The present invention solves the above-described conventional problems, and by using a plurality of ceiling fans using the airflow, the direction of airflow is changed by attracting a part of the airflow from the airflow blown from the ceiling fan to the floor surface. The purpose of the present invention is to provide a ceiling fan that circulates air along the wall surface of the room to make the room temperature uniform and provide a comfortable indoor environment.

  In order to achieve the above object, the ceiling fan of the present invention comprises an attaching means for fixing one end of the fixed shaft to the ceiling surface side, a stator connected to the fixed shaft, and a rotor for rotating the outer periphery of the stator. An ceiling fan having an electric motor and a plurality of blades connected to a rotor of the motor, wherein the blades rotate together with the rotor of the motor and blows air. An airflow attracting means which is formed in a direction away from the plate, the upper end of the plate being inclined toward the center side of the rotating surface of the blade and the lower end being inclined toward the outside of the blade. A rotation part that rotates around the fixed shaft, and an attraction rotation means that includes an arm part that extends from the rotation part and is connected to the air flow induction means. Indoor wall around each side on the opposite side A detection means for detecting, controlling the electric motor, and a control means for rotating the attraction rotation means based on the detection of the detection means to move the airflow induction means to the indoor wall side. is there.

  By this means, when the detection means detects the indoor wall, the control means rotates the attraction rotation means to move the airflow attraction means to the indoor wall side. In the summer, etc., when the fan is used in the forward rotation and blown downward from the ceiling fan, the airflow drawn by the airflow attracting means from the ceiling fans installed in the room is directed from the lower end side of the airflow attracting means toward the wall surface of the room. A ceiling fan can be obtained that circulates along the wall along the wall surface, makes the room temperature uniform, and can feel the cool breeze directly from the wind.

  According to the present invention, when used in a normal rotation in the summer, for example, by blowing downward from a ceiling fan, the airflow attracted by the airflow attracting means from the plurality of ceiling fans installed in the room is directed toward the wall surface of the room. Can be circulated through the room in the same direction as the forward rotation to make the room temperature uniform and at the same time feel a cool breeze. In addition, when the fan is used in reverse rotation in the winter, for example, air is blown upward from the ceiling fan, the airflow drawn by the airflow attracting means from the plurality of ceiling fans installed in the room is directed toward the wall surface of the room and reverses along the wall surface. It is possible to provide a ceiling fan that circulates in the room in the same direction as the rotation, makes the room temperature uniform, and prevents cold air from being felt directly by the wind.

Side surface schematic diagram which shows the structure of the ceiling fan of Embodiment 1 of this invention. Schematic top view showing the configuration of the ceiling fan of the first embodiment The block diagram which shows the installation at the time of forward rotation of the ceiling fan of Embodiment 1 Side schematic diagram showing the configuration of the ceiling fan of the second embodiment The block diagram which shows the installation at the time of reverse rotation of the ceiling fan of Embodiment 2 Schematic top view showing the configuration of the ceiling fan of the third embodiment Configuration of conventional blower

  According to a first aspect of the present invention, there is provided an electric motor comprising an attaching means for fixing one end of a fixed shaft to the ceiling surface side, a stator connected to the fixed shaft, and a rotor rotating on the outer periphery of the stator; A ceiling fan having a plurality of blades connected to a rotor of an electric motor, wherein the blades rotate with the rotor of the electric motor and blows air, and a direction in which an upper end and a lower end are separated from the blades outside the blades An airflow attraction means that can be arranged such that the upper end of the plate is inclined toward the center of the rotating surface of the blade and the lower end is inclined toward the outside of the blade, and the fixed shaft A rotating part that rotates around the rotating part and an arm part that extends from the rotating part and that is connected to the air flow attracting means. Detection that detects the wall in the surrounding room Comprising a stage, it controls the electric motor is obtained by the above with a control unit that is rotated to move the air flow induction means to the indoor wall side attraction rotating means based on the detection of the detection means configuration.

  As a result, when the fan is used in the normal direction, such as in the summer, when the fan is blown downward from the ceiling fan, the air current drawn by the air flow attracting means from the plurality of ceiling fans installed in the room is directed toward the wall surface of the room and runs along the wall surface. It has the effect of circulating inside the room, and has the effect of preventing the stagnation of cool air from the air conditioner by the airflow circulating inside the room, making the room temperature uniform, and feeling the cool wind directly by the wind.

  The airflow attraction means may be arranged such that the lower end of the plate body is inclined to the center side of the rotating surface of the blade plate and the upper end is inclined to the outside of the blade plate. Means and the tilt angle changing means and the arm portion are connected to each other.

  By this means, the inclination angle changing means is arranged so that the lower end of the airflow attraction means is inclined toward the center side of the rotating surface of the slats and the upper end is inclined to the outside of the slats, so that the ceiling is reversely rotated in winter. When used by blowing air upward from a fan, the airflow drawn by the airflow attracting means from a plurality of ceiling fans installed in the room circulates along the wall from the upper end side of the airflow attracting means toward the wall surface of the room. This has the effect of preventing the stagnation of warm air from the air conditioner by the airflow circulating in the room, making the room temperature uniform, and preventing the cold air from being felt directly by the wind.

  According to a third aspect of the present invention, the airflow attraction means comprises a movable part at both left and right ends and a stretching means capable of extending the airflow attraction means in the circumferential direction of the blade.

  By this means, it is possible to expand the area of the airflow attracting means by moving the stretching means accommodated in the airflow attracting means by the movable part so as to move in the circumferential direction of the blades. By increasing the area of the airflow attracting means, the airflow attracted from a part of the airflow of the ceiling fan also increases, and the effect of increasing the airflow circulating in the room from multiple ceiling fans and making the room temperature uniform There is.

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

(Embodiment 1)
FIG. 1 is a schematic side view showing the structure of the ceiling fan in the present invention, FIG. 2 is a schematic top view showing the structure of the ceiling fan, and FIG. 3 is a plan view of the room where the ceiling fan is installed.

  As shown in FIGS. 1 and 2, the main body 1 is hung by hanging a fixed shaft 3 on a mounting means 2 composed of a metal fitting fixed by using a ceiling ceiling ceiling. The lower end of the fixed shaft 3 is connected to the stator of the electric motor 4, and the blades 5 are radially connected to the rotor that rotates outside the stator of the electric motor 4.

  On the outside of the outer periphery of the vane plate 5, an airflow attracting means 6 formed of a plate body is arranged.

  The airflow attracting means 6 is a plate body in which an upper end 7 and a lower end 8 are formed in a direction away from the blade plate 5, and the upper end 7 of the plate body is inclined toward the center of the rotation surface of the blade plate 5, and the lower end 8 is The blade 5 can be arranged to be inclined to the outside.

  At the top of the electric motor 4, there is provided attraction rotating means 11 comprising a rotating portion 9 and an arm portion 10 that rotate about the fixed shaft 3.

  As shown in FIG. 2, the rotating unit 9 includes a ring-shaped gear 12 and a gear 13 a of a stepping motor 13.

  The arm portion 10 is a pipe extended from the rotating portion 9 in parallel with the blade plate 5, and an airflow attracting means 6 made of a resin plate such as ABS located outside the outer periphery of the blade plate 5 is connected to the tip of the pipe. Is done.

  Two pairs of detection means 14 for transmitting and receiving ultrasonic signals are provided on the side surface of the rotation part 9 at 90 degrees from the connecting part of the attraction rotation means 11 and the arm part 10 toward the outer periphery of the ceiling fan. It has been. In other words, the detection means 14 is provided on the side face of the rotating unit 9 facing toward the outer periphery of the ceiling fan.

  This detection means 14 is for detecting from the signal which reflected the wall to 4 m circumference | surroundings of the ceiling fan to install.

  Below the electric motor 4, there is provided a control means 15 equipped with a microcomputer for controlling the rotational speed of the electric motor 4, the rotational position of the attraction rotating means 11, and transmission / reception of the detecting means 14.

  The control unit 15 stores the position of the receiving unit 16 that receives a signal from a remote controller or the like (not shown) and the position of the attracting rotation unit 11 as an angle, and the storage unit 17 and the memory that store the transmission / reception time of the detection unit 14 Rotating unit driving means 18 for providing pulse power for controlling the rotation of the stepping motor of the rotating unit 9 is provided. The motor 4 is controlled based on the signal received from the remote controller, the position of the attracting rotation means 11 is stored in the storage means 17 from the detection signal of the detection means 14, and the rotation section 9 is rotated by the rotation section driving means 18 based on the stored position. Is rotated to move the airflow attracting means 6 toward the wall side in the room.

  In the above configuration, after the ceiling fan is installed on the ceiling surface of the room in an arbitrary direction as shown in FIG. 3, for example, when the ceiling fan has a wall surface position a installed at point A in the detection range, the power supply is turned on. If it performs, the operation | movement of the initial installation for determining the rotation position of the airflow attraction means 6 to a ceiling fan will be started.

  The following initial installation operations are performed by the control means. Is this operation possible with the configuration already described? Although it is described that the time of the reflected signal is measured by rotating in order of 720 ° and 180 ° with respect to 0 °, the storage means 17 provided in the control means or the rotating unit driving means 18 provides it. Will you do it? It is difficult to understand how the following functions and operations can be realized if there is no explanation for the configuration.

  The control unit 15 stores the current position of the attracting rotation unit 11 in the storage unit 17 as an angle of 0 °.

  Next, the control unit 15 gives a pulse signal for rotating 720 ° from the rotating unit driving unit 18 to the stepping motor 13. With the rotation of the stepping motor 13, the rotating portion 9 is rotated by the ring-shaped gear 12, and the attraction rotating means 11 itself starts rotating in the same direction as the normal rotation of the blade plate 5. The rotation unit 9 is configured to rotate 180 ° because the stepping motor 13 is configured to have a gear ratio of 4 with the gear 12 by rotating 720 °.

  The detecting means 14 facing away simultaneously with the rotation of the rotating unit 9 starts transmitting an ultrasonic intermittent signal in the outer circumferential direction.

  While rotating, a signal reflected from the wall surface at a distance of up to 4 m on the outer periphery of the ceiling fan is received, and the transmission / reception time and angle from transmission to reception of the reflected signal are sequentially stored in the storage means 17. The storage unit A23 stores the wall surface position a point, which is the angle of the attracting rotation means 11 (angle rotated from 0 °) received in the shortest time among the transmission / reception times stored after the rotation unit 9 completes the rotation of 180 °. Let initial installation complete.

  In addition, in the case of a ceiling fan with two wall surfaces installed nearby at point B, the ceiling fan starts an initial installation operation when power is supplied in the same manner as point A. The control unit 15 stores the current position of the attracting rotation unit 11 in the storage unit 17 as an angle of 0 °. The transmission / reception time and angle until the reflected signal is received from the two wall surfaces on the outer periphery of the ceiling fan by the rotating operation of the rotating unit 9 are sequentially stored in the storage unit 17. The wall surface position b1 point that is the angle of the attracting rotation means 11 (angle rotated from 0 °) received in the shortest time from the stored transmission / reception time and angle is stored in the storage means A23. Next, when there is a reception signal at an angle of ± 60 ° or more from the angle of the attracting rotation means 11 storing the b1 point and the content stored in the storage means 17, the signal is received in the shortest time among the transmission / reception time and angle. The wall surface position b2 that is the angle of the attracting rotation means 11 is added to the storage means A23 and stored.

  When the angle stored in the storage means A23 for the wall surface positions b1 and b2 is b2 ≧ b1, the control means 15 sets b2 as the reference position when the motor 4 rotates forward, and sets b1 as the reference position when the motor 4 rotates backward. Is stored in the storage means A23. Further, when the angle stored in the storage means A23 of the wall surface positions b1 and b2 is b2 ≦ b1, when the motor 4 is rotated forward, b1 is set as a reference position, and when the motor 4 is rotated reversely, b2 is set as a reference position. Store in A23.

  Next, a forward rotation operation signal is transmitted from the remote controller. The control unit 15 for the ceiling fan at point A that has received one signal from the wall surface received by the receiving unit 16 receiving this signal, from the angle (wall surface position a) stored in the attracting rotation unit 11 in FIG. It rotates in the forward direction by angle θ. Further, the control means 15 for the ceiling fan at point B that has received two signals rotates in the normal rotation direction by the angle θ of FIG. 3 from the angle (wall surface position b2) stored in the attracting rotation means 11. In this case, θ is 45 °.

  With this control, the air flow attracting means 6 of each ceiling fan is directed in the direction in which the air flow efficiently circulates in the room by the ceiling fan that rotates forward regardless of the position of the wall surface of the installed room. Normally, a part of the airflow drawn by the airflow attracting means 6 is drawn downward from the normally rotating ceiling fan. Due to the shape in which the lower end of the airflow attracting means 6 is bent outward, the attracted airflow is directed toward the outer periphery of the ceiling fan. This attracted airflow flows in a direction that makes an angle θ with the indoor wall facing the airflow attracting means 6, and this airflow follows the wall surface. The airflow along the wall surface flows by the airflow attracted from the airflow attracting means 6 of each ceiling fan, and the temperature inside the room becomes uniform.

(Embodiment 2)
Next, Embodiment 2 of the present invention will be described with reference to the drawings. In addition, the same thing as Embodiment 1 attaches | subjects the same number, and abbreviate | omits the detailed description.

  As shown in FIG. 4, the angle of the airflow attraction means 6 is inclined to the center of the rotating surface of the blade 5 at the connecting portion between the arm 10 and the airflow induction 6 and the upper end 7 is at the blade. 5 includes a tilt angle changing unit 19 as a stepping motor that can be tilted to the outside of 5, and a tilt angle driving unit 24 that gives the control unit 15 pulse power for controlling the rotation of the stepping motor of the tilt angle changing unit 19. It has been.

  In the above configuration, a reverse rotation operation signal is transmitted from the remote controller. When the receiving unit 16 receives this signal, the control unit 15 gives a pulse signal for rotating by 10 ° from the tilt angle driving unit 24 to the tilt angle changing unit 19 as the independent activity of θ1. The control means 15 for the ceiling fan at point A rotates in the reverse direction by the angle θ of FIG. 5 from the angle (wall surface position a) stored in the attracting rotation means 11. Further, the control means 15 for the ceiling fan at point B rotates in the reverse rotation direction by the angle θ of FIG. 5 from the angle (wall surface position b1) stored in the attracting rotation means 11. In this case, θ is 45 °.

  By this control, the air flow attracting means 6 of each ceiling fan is directed to the direction in which the air flow is efficiently circulated in the room by the ceiling fan that rotates in reverse regardless of the position of the wall surface of the installed room. A part of the airflow that is normally ejected upward from the counter-rotating ceiling fan is attracted to the airflow attracting means 6. Due to the shape in which the upper end of the airflow attracting means 6 is bent outward, the attracted airflow is directed toward the outer periphery of the ceiling fan. This attracted airflow flows in a direction that makes an angle θ with the indoor wall facing the airflow attracting means 6, and this airflow follows the wall surface. The airflow along the wall surface flows by the airflow of the airflow attracting means 6 of each ceiling fan and flows throughout the room to make the temperature in the room uniform.

(Embodiment 3)
Next, Embodiment 3 of the present invention will be described with reference to the drawings. In addition, the same thing as Embodiment 1 to 2 attaches | subjects the same number, and the detailed description is abbreviate | omitted.

  As shown in FIG. 6, in addition to any of the configurations shown in FIGS. 1 to 5, the stretching means 21 is provided as a resin plate for stretching the airflow attraction means A20 in the circumferential direction of the blade plate 5 at both ends of the airflow attraction means A20. It is done. The extending means 21 can be folded and stored so as to be integrated with the attracting air current means A20, and a movable portion 22 is provided as a hinge at a connecting portion between the attracting air current means A20 and the extending means 21.

  In the above configuration, the extending means 21 folded and housed in the airflow attracting means A20 is moved and installed by the movable portion 22 so as to be in the circumferential direction of the blade plate 5. The area of the air flow attracting means A20 can be expanded by the installed stretching means 21. By expanding the area, the airflow drawn from the airflow ejected from the ceiling fan increases, and the airflow of the attracted airflow can be increased. By installing each ceiling fan, it is possible to increase the total air volume circulating in the room.

  The indoor air is circulated by the airflow induced by the plurality of blowers.

DESCRIPTION OF SYMBOLS 1 Main body 2 Mounting means 3 Fixed shaft 4 Electric motor 5 Blade | blade 6 Airflow attraction means 7 Upper end 8 Lower end 9 Rotating part 10 Arm part 11 Attracting rotating means 12 Gear 13 Stepping motor 13a Gear 14 Detection means 15 Control means 16 Receiving part 17 Storage means 19 Inclination angle changing means 20 Airflow attracting means A
21 Stretching means 22 Movable part 23 Storage means A
24 Inclination angle driving means

Claims (3)

Mounting means for fixing one end of the fixed shaft to the ceiling surface side, an electric motor comprising a stator connected to the fixed shaft and a rotor rotating on the outer periphery of the stator, and a plurality of blades connected to the rotor of the electric motor In the ceiling fan in which the blades rotate with the rotor of the electric motor and blows air, the upper and lower ends of the ceiling fan are formed in the direction away from the blades. An airflow attracting means that allows the upper end of the body to be inclined to the center side of the rotating surface of the vane and the lower end to be inclined to the outside of the vane, a rotating part that rotates around the fixed shaft, and this rotation An inductive rotation means provided with an arm portion extending from a portion and connected to the airflow attraction means, wherein the attraction rotation means is disposed on a side facing away from the rotation portion, and the surrounding indoor wall Detecting means for detecting the motor and controlling the electric motor With a ceiling fan, characterized in that a control means is rotated to move the air flow induction means to the indoor wall side attraction rotating means based on the detection of said detecting means. The airflow attraction means includes an inclination angle changing means that can be arranged such that the lower end of the plate body is inclined toward the center side of the rotating surface of the vane plate and the upper end is inclined to the outside of the vane plate. The ceiling fan according to claim 1, wherein the arm portion is connected. The ceiling fan according to any one of claims 1 and 2, wherein the airflow attraction means includes a movable part at both left and right ends and an extension means capable of extending the airflow induction means in a circumferential direction of the blades.

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