JPH0524996U - Fan - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a fan that can always blow air in the direction of a person and can blow air in a wide range, regardless of how the fan is installed. [Structure] A fan motor on a neck portion, a rotating shaft which is erected by inserting three slip rings on a pedestal portion and stands upright with the neck portion, a motor which drives the rotating shaft, and a human sensor And a sensor for activating the rotary shaft are turned on and off by the relay of the relay unit, and the motor for driving the rotary shaft is turned on by the relay of the relay unit. , A fan that is connected to the power supply via another switch that turns off, and one of the other two slip rings is connected to the relay of the sensor and relay unit, and the other is connected to the sensor and the power supply, respectively. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electric fan, and more particularly, to an electric fan in which a neck portion to which a fan is attached rotates 360 ° when a person is not present, and when the presence of a person is sensed, the neck portion stops in the direction of the person to start blowing.

[0002]

[Prior Art]

 An electric fan makes a swinging motion at a certain angle when sending a wind by rotating a fan, and this swinging motion mechanism is often a mechanical so-called four-bar rotary chain mechanism. When the air is blown only in a certain direction, this mechanism is stopped by mechanical means, but some of them incorporate a device for electrically stopping by a remote control.

[0003]

[Problems to be solved by the device]

 As described above, the conventional fan has a mechanical oscillating mechanism, and the upper swing angle of the electric wiring is limited (the wiring is entangled, etc.), so that the blowing angle has a certain limitation. Also, the swing angle of any fan is fixed to some extent and is unrelated to the presence of people. Therefore, in order to blow air in the required direction, it is troublesome to install the entire fan in that direction. The present invention has been made in view of the above problems, and the purpose thereof is to provide a fan that can always blow air in the direction of a person and can blow it in a wide range, regardless of how the fan is installed. Especially.

[0004]

[Means for Solving the Problems]

 That is, in order to solve the above problems, the present invention provides a fan, in which a fan motor is mounted on a neck portion, and three slip rings are fitted on a pedestal portion to stand upright and rotate integrally with the neck portion. A motor for driving the rotating shaft and a sensor for detecting a person are arranged respectively, and the one slip ring is turned on and off by a relay of a relay unit and is supplied to a power source through the rotary shaft. The motor that drives the relay unit is connected to the power source via another switch that is turned on and off by the relay of the relay unit, and one of the other two slip rings is connected to the sensor and the relay unit. In addition, the other is connected to the sensor and the power supply, respectively.

[0005]

[Action]

 The operation of the fan as the above means will be described with reference to the reference symbols in the accompanying drawings. That is, when the presence of a person is not sensed, the sensor 9 does not operate at all and the switch 13 of the relay unit 10 is turned on and the switch 12 is turned off via the slip ring 6, as shown in FIG. Therefore, the fan only makes a rotary motion (pivoting motion) of 360 ° rotation by the motor 4, and the fan motor 2 is not operating, so no air is blown. Next, when the sensor 9 detects the presence of a person, as shown in FIG. 3, the relay 11 of the relay unit 10 is activated and the switch 12 is turned on and the other switch 13 is turned off. . As a result, the fan stops its rotational movement in the direction in which it senses a person, and the fan motor 2 operates to start blowing air. In addition, when the person is gone or the body temperature drops, only the rotational movement is performed again.

[0006]

【Example】

 Hereinafter, a specific embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an overall schematic perspective view of an electric fan according to the present invention. A driving motor 2 for rotating the fan is built in the neck portion 1 at the upper part of the fan, and another driving motor 4 is built in the pedestal portion 3. The drive motor 4 of the pedestal portion 3 is adapted to drive a rotating shaft 5 which is connected to the neck portion 1 and rotates integrally with the entire neck portion 1. Further, three slip rings 6, 7, 8 are fitted on the rotary shaft 5, and predetermined electric wirings are connected to these slip rings, respectively, as described later. In addition, 9 in this figure is a sensor attached to a protective cage to detect the presence of a person, for example, an infrared sensor is used.

Next, FIG. 2 is an electrical wiring diagram for controlling the swinging motion mechanism of the fan according to the present invention. The fan motor 2 is connected to a power source 20 via a slip ring 6 and a switch 12 of a relay unit 10. The swinging motor 4 (that is, the motor 4 for rotating the rotating shaft 5) is connected to the power source 20 via the switch 13 of the relay unit 10. Further, the sensor 9 is connected to the relay 11 of the relay unit 10 via the ring 7 and is connected to the power source 20 via the other ring 8. In this case, the relay unit 10 is a relay unit in which one of the two switches 12 and 13 is turned off by the relay 11 and the other is turned on by the relay 11 as will be understood from the above description.

The electric fan according to the present invention has the above-mentioned structure. When the electric fan blows air or stops the air blowing, it operates as follows. That is, when the presence of a person is not sensed, the sensor 9 does not operate at all and the switch 13 of the relay unit 10 is turned on and the switch 12 is turned off via the slip ring 6, as shown in FIG. Therefore, the fan only makes a rotary motion (pivoting motion) of 360 ° rotation by the motor 4, and the fan motor 2 is not operating, so no air is blown.

Next, when the sensor 9 senses the presence of a person, as shown in FIG. 3, the relay 11 of the relay unit 10 is activated and the switch 12 is turned on, and the other switch 13 is turned off. It becomes a state. As a result, the fan as a whole stops its rotational movement (pivoting movement) in the direction in which it senses a person, and the fan motor 2 operates to start blowing air. Further, when there is no person or the body temperature drops, the relay unit 10 is actuated by the sensor 9, the switch 13 is turned on, and the switch 12 is turned off. In this case, the sensor 9 can adjust the temperature to be sensed.

[0010]

[Effect of the device]

 Since the fan according to the present invention has the structure described in detail above, not only can the fan be blown over a wide range of angles (360 ° rotation), but there is no need to consider the position or angle at which the fan is installed. In addition, this fan is efficient and energy-saving because it blows air only when and in the presence of a person, and is extremely convenient.

[0011]

[Brief description of drawings]

FIG. 1 is an overall schematic perspective view of an electric fan according to the present invention.

FIG. 2 is a circuit diagram for controlling the swinging motion mechanism of the fan according to the present invention, showing the circuit in a state in which blowing is stopped and only swinging motion is performed.

FIG. 3 is a circuit diagram for controlling the swinging motion mechanism of the fan according to the present invention, in which the swinging motion is stopped,
It is a figure which shows the circuit in the state which is blowing.

[Explanation of symbols]

1 Neck 2, 4 Motor 3 Pedestal 5 Rotating Shaft 6, 7, 8 Slip Ring
9 sensor 10 relay unit 11 relay 12, 13 switch 20 power supply

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yuzo Kanbara 3-5-8 Minamisenba, Chuo-ku, Osaka City Koyo Seiko Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A motor for a fan at a neck portion, a rotating shaft which is erected by inserting three slip rings into a pedestal portion and stands upright with the neck portion, a motor which drives the rotating shaft, and a person. And a sensor that senses each of them, and the one slip ring is turned on and off by a relay of the relay unit, and the motor for driving the rotary shaft is connected to the power source via a switch of the relay unit. The other slip ring is connected to the power supply via another switch that turns on and off, and one of the other two slip rings is connected to the relay of the sensor and relay unit, and the other is connected to the sensor and the power supply. Become a fan.