JP5316018B2 - Ceiling fan - Google Patents

Description

  The present invention relates to a ceiling fan suspended from a ceiling.

  Conventionally, the configuration of this type of ceiling fan has been as follows.

  In other words, a ceiling fan is provided in a room provided with an outlet for blowing hot air or cold air, a temperature sensor is provided at the upper and lower parts of the room, and a control device is provided that operates the ceiling fan according to the difference in temperature detected by these two temperature sensors. It was a composition.

For example, a similar prior document is described in Patent Document 1 below.
JP-A-1-208634

  The problem in the above conventional example is that when the speed of the ceiling fan is changed in accordance with the room temperature, the usability is poor.

  That is, by installing a ceiling fan on the ceiling and installing a temperature sensor on the wall surface of the room, the temperature of the room is detected by this temperature sensor, and the speed of the ceiling fan is changed according to the detected temperature. .

  However, depending on the location of the temperature sensor, the air flow generated by operating the ceiling fan is difficult to reach, and an air pool is created near the temperature sensor. The change in speed did not follow, so the feeling of use was bad.

  Then, this invention aims at improving the usability | use_condition when changing the speed regulation of a ceiling fan according to room temperature.

  In order to achieve this object, the present invention provides a connecting portion fixed to the ceiling, a motor provided at the lower portion of the connecting portion, a rotor of the motor having a plurality of blades in the horizontal direction, and a lower portion of the motor. A first circuit board portion is provided, a second circuit board portion is provided below the first circuit board portion, and the electric motor is provided so as to cover the first circuit board portion and the second circuit board portion. A main body cover is provided with a predetermined distance, the first circuit board part is provided with a heat generating part part, and a temperature detection part is provided on the lower surface of the second circuit board part. The main body cover is provided with a suction port so as to communicate with each other, thereby achieving the initial purpose.

  As described above, the present invention provides a connecting portion fixed to the ceiling, a motor provided at a lower portion of the connecting portion, a rotor of the motor including a plurality of blades in a horizontal direction, and a first circuit at a lower portion of the motor. A board part is provided, a second circuit board part is provided below the first circuit board part, and a predetermined distance from the motor is provided so as to cover the first circuit board part and the second circuit board part. The first circuit board part is provided with a heat generating component part, and a temperature detection part is provided on the lower surface of the second circuit board part so that the temperature detection part communicates with the room. The main body cover is provided with a suction port.

  That is, when the ceiling fan is operated, the heat generating component part and the electric motor of the first circuit board part located on the upper part of the second circuit board part provided with the temperature detection part generate heat, and this heat generation causes the air in the main body cover to flow. It is warmed and an updraft is generated. The rising airflow generates an air flow that releases the air in the main body cover from the upper edge portion of the main body cover into the room while sucking the indoor air from the suction port of the main body cover.

  Therefore, the temperature of the indoor air sucked from the suction port of the main body cover is detected by a temperature detection unit to control the speed adjustment of the ceiling fan.

  Based on these results, the temperature of the air in the vicinity of the ceiling fan is detected and the speed adjustment of the ceiling fan is controlled, so that the usability when changing the speed adjustment of the ceiling fan according to the room temperature can be improved.

  Hereinafter, the present embodiment will be described with reference to the accompanying drawings.

(Embodiment 1)
As shown in FIGS. 1, 2, 3, and 4, the ceiling fan of the present embodiment is provided with a connecting portion 2 fixed to the ceiling 1, and an electric motor 3 provided below the connecting portion 2. The three rotors 4 are provided with a plurality of blades 5 in the horizontal direction.

  A first circuit board portion 6 is provided below the electric motor 3, and a second circuit board portion 7 is provided below the first circuit board portion 6.

  The present embodiment is characterized in that the first circuit board portion 6 includes a heat generating component portion 8, a temperature detection portion 9 is provided on the lower surface of the second circuit board portion 7, and the temperature detection portion 9 communicates with the room. It is in the point provided in the wind path.

  Specifically, a cylindrical circuit board cover 10 whose lower surface is closed is provided so as to cover the first circuit board part 6 and the second circuit board part 7, and the side surface of the circuit board cover 10 is provided on the side surface. A plurality of vertically-extending rectangular exhaust ports 11 are provided. Further, a substantially hemispherical body cover 12 having an open top is provided so as to cover the circuit board cover 10. The upper portion of the main body cover 12 has a motor main body cover distance 13 which is a predetermined distance from the electric motor 3, and a space 14 is formed between the inner surface of the side surface and the exhaust port 11 of the circuit board cover 10. Here, the circuit board cover 10 is provided with a communication port 15 and the main body cover 12 is provided with a suction port 16 so that the temperature detection unit 9 and the room communicate with each other.

  That is, when the ceiling fan is operated, the heat generating component portion 8 and the electric motor 3 of the first circuit board portion 6 located above the second circuit board portion 7 including the temperature detecting portion 9 generate heat, and the circuit is generated by this heat generation. The air in the substrate cover 10 is warmed, and an updraft is generated. With this rising airflow, the air in the circuit board cover 10 is sucked into the circuit board cover 10 from the suction port 16 of the main body cover 12 through the communication port 15 of the circuit board cover 10 while the air in the circuit board cover 10 is sucked into the circuit board cover 10. A flow of air discharged from the upper edge portion 17 of the main body cover into the room through the exhaust port 11 is generated.

  Therefore, the temperature of the indoor air sucked from the suction port 16 of the main body cover 12 is detected by the temperature detection unit 9 to control the speed adjustment of the ceiling fan.

  Based on these results, the temperature of the air in the vicinity of the ceiling fan is detected and the speed adjustment of the ceiling fan is controlled, so that the usability when changing the speed adjustment of the ceiling fan according to the room temperature can be improved.

  Further, the upper outer peripheral portion 18 of the main body cover 12 is positioned inside the twisted portion 19 of the blade 5. Specifically, the upper outer peripheral portion 18 of the substantially hemispherical body cover 12 having an open top has a motor body cover distance 13 that is a predetermined distance from the motor 3, and the rotor 4 of the motor 3 It is located inside the twisted portions 19 of the plurality of fixed blades 5. As a result, the blade 5 rotates and the air blown downward from the twisted portion 19 of the blade 5 can flow outside the main body cover 12.

  That is, the outside of the body cover 12 can be flowed without blowing to a space having a motor body cover distance 13 that is a predetermined distance between the upper outer peripheral portion 18 of the body cover 12 and the motor 3, that is, The indoor air is sucked into the circuit board cover 10 from the suction port 16 of the main body cover 12 through the communication port 15 of the circuit board cover 10, and the air in the circuit board cover 10 is made to flow through the exhaust port 11 of the circuit board cover 10. The air flow discharged from the upper edge 17 of the main body cover 12 into the room is not disturbed, so that the air flow in the temperature detection unit 9 can be prevented from being disturbed, and the ceiling fan can be controlled according to the room temperature. The feeling of use when changing can be improved.

  Further, the suction port 16 of the main body cover 12 is located on the inclined surface portion or the spherical surface portion 20 of the main body cover 12. Specifically, the suction port 16 of the main body cover 12 is positioned on the inclined surface portion or the spherical surface portion 20 of the outer peripheral surface of the substantially hemispherical body cover having an upper opening, and has a substantially horizontally long rectangular shape.

  That is, the air blown downward from the twisted portion 19 of the blade 5 flows outside the main body cover 12, and this air flows along the outer peripheral surface of the main body cover 12 from the suction port 16 of the main body cover 12. Since the temperature of the ceiling fan is detected and the speed of the ceiling fan is controlled, the feeling of use when changing the speed of the ceiling fan according to the room temperature is improved. I can do it.

  As shown in FIG. 5, the suction port 16 of the main body cover 12 is provided at a position facing the temperature detection unit 9 of the second circuit board unit 7 in the horizontal direction. Specifically, the suction port 16 of the main body cover 12 and the communication port 15 of the circuit board cover 10 are substantially in contact with each other, and both have substantially the same substantially rectangular shape. And the temperature detection part 9 of the 2nd circuit board part 7 is provided in the position facing the horizontal direction which is the vicinity of the communication port 15 of the circuit board cover 10.

  Thereby, the air sucked from the suction port 16 of the main body cover 12 enters the temperature detection unit 9 of the second circuit board unit 7 via the suction port 16 of the main body cover 12 and the communication port 15 of the circuit board cover 10. Since the air flows in, the temperature of the air in the vicinity of the ceiling fan is detected and the speed of the ceiling fan is controlled, so that the feeling of use when changing the speed of the ceiling fan according to the room temperature can be improved.

  Further, the main body cover 12 is provided with an inclined portion 22 inclined downward from substantially the same height as the lower end portion of the suction port 16. Specifically, the suction port 16 of the main body cover 12 and the communication port 15 of the circuit board cover 10 are located in contact with each other, and both have substantially the same substantially rectangular shape. The lower end portion of the communication port 15 of the substrate cover 10 is located at substantially the same height. An inclined portion 22 which is a lower surface of the circuit board cover 10 inclined downward from substantially the same height as the lower end portion is provided.

  As a result, the air that has flowed into the circuit board cover 10 through the suction port 16 of the main body cover 12 and the communication port 15 of the circuit board cover 10 is supplied to the second circuit board unit 7 including the temperature detection unit 9 and the circuit. It flows through a space sandwiched between the upper and lower surfaces by the inclined portion 22 which is the lower surface of the substrate cover 10 and passes through the temperature detection unit 9. That is, the upper and lower surfaces become the upper and lower guide surfaces by the second circuit board portion 7 provided with the temperature detection unit 9 and the inclined portion 22 which is the lower surface of the circuit board cover 10, and the air flow to the temperature detection unit 9 is reduced. It can be smooth.

  Further, as shown in FIG. 6, a hole 23 is provided in the second circuit board portion 7 immediately above the temperature detecting portion 9. Specifically, a hole 23 is provided in the second circuit board part 7 immediately above the temperature detection part 9, and the hole 23 allows the lower part of the second circuit board part 7 to be connected to the second circuit board part 7. Is communicated with the lower part of the first circuit board 6 which is the upper part of the circuit board.

  As a result, the air that has flowed into the circuit board cover 10 through the suction port 16 of the main body cover 12 and the communication port 15 of the circuit board cover 10 is supplied to the second circuit board unit 7 including the temperature detection unit 9 and the circuit. It flows through a space sandwiched between the upper and lower surfaces by the inclined portion 22 which is the lower surface of the substrate cover 10, passes through the temperature detection unit 9, and has a hole 23 in the second circuit board unit 7 or the second circuit board unit 7. It flows from the surroundings to the lower part of the first circuit board unit 6, further flows around the first circuit board unit 6, and enters the room from the upper edge 17 of the main body cover 12 through the exhaust port 11 of the circuit board cover 10. A flow of air to be emitted is generated.

  In other words, by providing the hole 23 in the second circuit board portion 7 immediately above the temperature detection unit 9, the flow can be smoothly performed from the lower part of the second circuit board part 7 to the lower part of the first circuit board part 6. can do.

  The hole 23 of the second circuit board portion 7 has a substantially horizontally long rectangular shape and the longitudinal direction is the same as the direction from the outer periphery of the main body cover 12 toward the center. Specifically, the hole 23 of the second circuit board portion 7 has a substantially horizontally long rectangular shape, and the direction from the outer periphery of the main body cover 12 toward the center is the longitudinal direction of the substantially horizontally long rectangular shape. The longitudinal direction of the substantially horizontally long rectangular shape is the same as the flow direction of air flowing into the circuit board cover 10 through the suction port 16 of the main body cover 12 and the communication port 15 of the circuit board cover 10. The dimension in the short direction of the substantially horizontally long rectangular shape is substantially the same as the length dimension of the temperature sensor that is the temperature detection unit 9.

  As a result, the air that has flowed into the circuit board cover 10 through the suction port 16 of the main body cover 12 and the communication port 15 of the circuit board cover 10 is supplied to the second circuit board unit 7 including the temperature detection unit 9 and the circuit. It flows through a space sandwiched between the upper and lower surfaces by the inclined portion 22 which is the lower surface of the substrate cover 10, passes through the temperature detection unit 9, and has a hole 23 in the second circuit board unit 7 or the second circuit board unit 7. It flows from the surroundings to the lower part of the first circuit board unit 6, further flows around the first circuit board unit 6, and enters the room from the upper edge 17 of the main body cover 12 through the exhaust port 11 of the circuit board cover 10 A flow of air to be emitted is generated.

  That is, the second circuit board portion 7 directly above the temperature detection portion 9 is provided with a substantially horizontally long hole 23, and the longitudinal direction of the hole 23 communicates with the suction port 16 of the main body cover 12 and the circuit board cover 10. Since the air flows in the same direction as the air flowing into the circuit board cover 10 through the opening 15, the air that has passed through the temperature detecting section 9 flows along the longitudinal direction of the hole 23 of the second circuit board section 7 and gradually. In addition, the flow from the hole 23 of the second circuit board part 7 to the lower part of the first circuit board part 6 smoothly flows from the lower part of the second circuit board part 7 to the lower part of the first circuit board part 6. Can be.

  In addition, a substantially horizontally long rectangular hole 23 in the second circuit board portion 7 immediately above the temperature detecting portion 9 is a central side that is an end portion of the substantially horizontally long rectangular hole 23 in the center direction from the temperature detecting portion 9. The center-side distance 24 that is the distance to the end is longer than the outer-periphery-side distance 25 that is the distance from the temperature detection unit 9 to the outer-end-side end that is the end of the substantially horizontally long rectangular hole 23 in the outer-periphery direction. . That is, the substantially horizontally elongated hole 23 in the second circuit board portion 7 has a longer hole in the center direction than the hole in the outer peripheral direction with the temperature detecting portion 9 as a boundary.

  Thereby, after passing through the temperature detection unit 9, air flows along the longitudinal direction of the hole 23 of the second circuit board part 7, and gradually passes through the hole 23 of the second circuit board part 7. By flowing to the lower part of the substrate part 6, the flow can be made smooth from the lower part of the second circuit board part 7 to the lower part of the first circuit board part 6 after passing through the temperature detection part 9.

  The temperature detection unit 9 has a temperature detection substrate distance 26 which is a distance from the second circuit board unit 7. Specifically, the temperature detection unit 9 is provided at a substantially middle portion of the space sandwiched between the second circuit board unit 7 including the temperature detection unit 9 and the inclined part 22 which is the lower surface of the circuit board cover 10. Is provided.

  As a result, the air that has flowed into the circuit board cover 10 through the suction port 16 of the main body cover 12 and the communication port 15 of the circuit board cover 10 is supplied to the second circuit board unit 7 including the temperature detection unit 9 and the circuit. It flows through a space sandwiched between the upper and lower surfaces by the inclined portion 22 which is the lower surface of the substrate cover 10, and passes through a temperature detection unit 9 provided in an approximately middle portion of the space. That is, the upper and lower surfaces become the upper and lower guide surfaces by the second circuit board portion 7 provided with the temperature detection unit 9 and the inclined portion 22 which is the lower surface of the circuit board cover 10, and the air flow to the temperature detection unit 9 is reduced. It can be smooth. Moreover, the influence of the heat generation of the first circuit board unit 6 can be suppressed by being further away from the first circuit board unit 6 including the heat generating component unit 8.

  Further, as shown in FIG. 7, a wall portion 27 having an opening on the communication port 15 side of the circuit board cover 10 is provided in the main body cover 12 so as to surround the temperature detection portion 9 of the second circuit board portion 7. Is. Specifically, the wall 27 has a U-shaped cross-sectional shape in which the communication port 15 side of the circuit board cover 10 is opened so as to surround the temperature detection unit 9 of the second circuit board 7. . That is, the inclined portion that is the lower surface of the circuit board cover 10 is in a space sandwiched between the upper and lower surfaces by the second circuit board portion 7 that includes the temperature detection unit 9 and the inclined portion 22 that is the lower surface of the circuit board cover 10. The temperature detection unit 9 of the second circuit board unit 7 and the second detection unit 22 are formed by a wall part 27 having a U-shaped cross section that is open on the side of the communication port 15 of the circuit board cover 10 extending upward from the upper surface of the circuit board 22. A substantially horizontally long rectangular hole 23 of the circuit board portion 7 is surrounded. Further, the upper surface of the wall portion 27 having a U-shaped cross section is in contact with the lower surface of the second circuit board portion 7.

  As a result, the air that has flowed into the circuit board cover 10 through the suction port 16 of the main body cover 12 and the communication port 15 of the circuit board cover 10 is supplied to the second circuit board unit 7 including the temperature detection unit 9 and the circuit. The upper and lower surfaces are surrounded by the inclined portion 22 which is the lower surface of the substrate cover 10 and flows in a space surrounded by the wall portion 27 having a U-shaped cross section. That is, the air that has flowed into the circuit board cover 10 through the suction port 16 of the main body cover 12 and the communication port 15 of the circuit board cover 10 flows through the space surrounded by the upper, lower, left, and right surfaces, and is almost in the middle of the space. It passes through the temperature detection unit 9 provided, and from the lower part of the second circuit board unit 7 through the hole 23 of the second circuit board unit 7 directly above the temperature detection unit 9. Since it flows to the lower part, the flow from the lower part of the second circuit board part 7 to the lower part of the first circuit board part 6 can be made smooth.

  Moreover, the notch part 28 is provided in the opposing side wall part of the wall part whose cross-sectional shape of the wall part 27 is U shape. Specifically, the wall portion 27 has a U-shaped cross-sectional shape opposite to the wall portion, that is, in a side wall portion aligned in parallel, at a position facing the temperature detection portion 9 of the second circuit board portion 7. The cutout portion 28 is provided in a substantially quadrangular shape with an open top surface.

  As a result, the air that has flowed into the circuit board cover 10 through the suction port 16 of the main body cover 12 and the communication port 15 of the circuit board cover 10 flows through the space surrounded by the upper, lower, left and right surfaces, and is substantially in the middle of the space. Of the wall portion that passes through the temperature detection portion 9 provided in the second detection circuit board 9 and has a U-shaped cross section of the hole 23 of the second circuit board portion 7 and the wall portion 27 immediately above the temperature detection portion 9. Since the notch portion 28 on the opposite side wall portion flows from the lower portion of the second circuit board portion 7 to the lower portion of the first circuit substrate portion 6, the first circuit board portion starts from the lower portion of the second circuit board portion 7. The flow to the lower part of 6 can be made smooth.

  As described above, the present invention provides a connecting portion fixed to the ceiling, a motor provided at a lower portion of the connecting portion, a rotor of the motor including a plurality of blades in a horizontal direction, and a first circuit at a lower portion of the motor. A board part is provided, a second circuit board part is provided below the first circuit board part, and a predetermined distance from the motor is provided so as to cover the first circuit board part and the second circuit board part. The first circuit board part is provided with a heat generating component part, and a temperature detection part is provided on the lower surface of the second circuit board part so that the temperature detection part communicates with the room. The main body cover is provided with a suction port.

  That is, when the ceiling fan is operated, the heat generating component part and the electric motor of the first circuit board part located on the upper part of the second circuit board part provided with the temperature detection part generate heat, and this heat generation causes the air in the main body cover to flow. It is warmed and an updraft is generated. The rising airflow generates an air flow that releases the air in the main body cover from the upper edge portion of the main body cover into the room while sucking the indoor air from the suction port of the main body cover.

  Therefore, the temperature of the indoor air sucked from the suction port of the main body cover is detected by a temperature detection unit to control the speed adjustment of the ceiling fan.

  Based on these results, the temperature of the air in the vicinity of the ceiling fan is detected and the speed adjustment of the ceiling fan is controlled, so that the usability when changing the speed adjustment of the ceiling fan according to the room temperature can be improved.

  Therefore, it is expected to be used as a ceiling fan for home use or office use.

1 is an external view showing a ceiling fan according to Embodiment 1 of the present invention. Inside view of the main cover of the ceiling fan Inclined overhead view of the cover of the ceiling fan Side view and partial sectional view of the ceiling fan Sectional view showing the ceiling fan The enlarged view which looked at the 2nd circuit board part which shows the ceiling fan from the bottom Inclined overhead view of circuit board cover showing the ceiling fan

DESCRIPTION OF SYMBOLS 1 Ceiling 2 Connection part 3 Electric motor 4 Rotor 5 Blade | wing 6 1st circuit board part 7 2nd circuit board part 8 Heat-generation component part 9 Temperature detection part 10 Circuit board cover 11 Exhaust port 12 Body cover 13 Motor body cover distance 14 Space DESCRIPTION OF SYMBOLS 15 Communication port 16 Suction port 17 Upper edge part 18 Upper outer peripheral part 19 Twist part 20 Spherical part 21 Curved part 22 Inclined part 23 Hole 24 Center side distance 25 Outer peripheral side distance 26 Temperature detection board | substrate distance 27 Wall part 28 Notch part

Claims (11)

A connecting portion fixed to the ceiling, a motor is provided at a lower portion of the connecting portion, a rotor of the motor is provided with a plurality of blades in a horizontal direction, a first circuit board portion is provided at a lower portion of the motor, and the first A second circuit board part is provided below the circuit board part, and a body cover is provided with a predetermined distance from the electric motor so as to cover the first circuit board part and the second circuit board part, The first circuit board portion includes a heat generating component portion, a temperature detection portion is provided on the lower surface of the second circuit board portion, and the main body cover has a suction port so that the temperature detection portion and the room communicate with each other. Ceiling fan with The ceiling fan according to claim 1, wherein an upper outer peripheral portion of the main body cover is located inside a twisted portion of the blade. The ceiling fan according to claim 1, wherein the suction port of the main body cover is located on an inclined surface portion or a spherical surface portion of the main body cover. The ceiling fan according to claim 1, wherein the suction port of the main body cover is provided at a position facing the temperature detection unit of the second circuit board unit in a horizontal direction. The ceiling fan according to any one of claims 1 to 4, further comprising an inclined portion inclined downward from substantially the same height as the lower end portion of the suction port in the main body cover. The ceiling fan according to any one of claims 1 to 5, wherein a hole is provided in the second circuit board part directly above the temperature detection part. The ceiling fan according to claim 6, wherein the hole of the second circuit board portion has a substantially horizontally long rectangular shape and a longitudinal direction is the same as a direction from the outer periphery of the main body cover toward the center. The ceiling fan according to any one of claims 1 to 7, wherein the temperature detection unit has a predetermined distance from the second circuit board unit. The ceiling according to any one of claims 1 to 8, wherein a wall portion having an opening on the suction port side of the main body cover is provided in the main body cover so as to surround the temperature detection portion of the second circuit board portion. Fan. 10. The ceiling fan according to claim 9, wherein the wall portion has a U-shaped cross section in which the suction port side of the main body cover is opened so as to surround the temperature detection portion of the second circuit board portion. The ceiling fan according to claim 10, wherein a notch portion is provided in a side wall portion of the wall portion that is U-shaped in cross section.

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