KR102049567B1 - Electric fan and control method of electric fan - Google Patents

Abstract

The present invention relates to a fan and a fan control method, comprising: a support unit on which an operation button is formed, a support unit mounted on the support unit, a drive unit mounted on the support unit and rotated about the longitudinal direction of the support unit, and connected to the drive unit. The air blowing unit includes a wing unit for generating wind, a cover unit surrounding the wing unit, a sensor unit mounted on the support unit for sensing a blowing target, and a control unit for receiving a detection signal of the sensor unit and adjusting an operating state of the driving unit. The wind direction and the air volume can be adjusted according to the position distribution and distance of the object.

Description

Fan and fan control method {ELECTRIC FAN AND CONTROL METHOD OF ELECTRIC FAN}

The present invention relates to a fan and a fan control method, and more particularly, to a fan and a fan control method for reducing unnecessary power consumption and preventing a safety accident by controlling a driving of the fan by sensing a blow target.

In general, a fan is a machine that rotates the blades mounted on the shaft of the electric motor in the room and gives a cool feeling to the wind, mainly used to cool the heat in the summer.

Fans include table fans, stand fans, ventilation fans, and ceiling fans, depending on the shape and purpose of use.A remote control type that can control fan operation at a long distance, and a built-in microcomputer automatically adjust the wind speed to make you fall asleep. Some have programs to help.

Recently, a variety of technologies related to a functional fan that add a special function to the simple cooling function to cool the summer heat has been unfolded.

Among them, the air-conditioning combined electric fan with the cooling function or the heating function, the well-being fan with the air cleaning function, or the antibacterial function to give a specific scent, and the light emitting diode (LED) are attached to the blade of the fan. There is a fan and so on.

Since a conventional fan operates according to a given command regardless of the presence or absence of an object to be blown, the wind intensity is controlled to be constant regardless of the position distribution or distance of the object to be blown. For this reason, there is a problem in that energy is wasted because the fan is turned even when there is no object to blow.

In addition, even if the infant or child approaches the fan, since the fan blade is continuously rotated according to a given command, there is a problem causing a safety accident due to their carelessness. Therefore, there is a need for improvement.

Background art of the present invention is disclosed in Korean Unexamined Patent Publication No. 1998-0065108 (published on October 7, 1998, titled invention: air conditioner with humidification).

The present invention has been made to improve the above problems, and to provide a fan and a fan control method for controlling the intensity of the wind according to the presence or absence of the object to be blown, and controlling the driving according to the proximity of the infant or child. There is this.

The fan according to the present invention includes: a support unit on which an operation button is formed; A support part mounted on the support part; A driving part mounted to the support part and rotating around a longitudinal axis of the support part; A wing unit connected to the driving unit and rotating to generate wind; A cover part surrounding the wing part; A sensor unit mounted to the support unit to detect a blowing target; And a controller configured to receive a detection signal of the sensor unit to adjust an operating state of the driving unit.

The sensor unit includes: a pair of sensing zones at which both ends overlap each other to surround the support unit; A plurality of detectors disposed along an outer side of each of the pair of detectors and detecting a position distribution of the blowing target and a distance to the blowing target; A cable connecting the detector and the control unit to transmit a detection signal measured by the detector to the control unit; And a fixing body penetrating the sensing table and fastened to the support unit.

The fan control method according to the present invention includes: driving a driving unit to rotate the wing unit when an operation button formed on the support unit is selected; Sensing a blowing object by a sensor unit surrounding a support unit mounted on the receiving unit; And driving the driving unit according to the detection signal of the sensor unit.

The driving of the driving unit according to the sensing signal of the sensor unit may include stopping the driving unit when the distance between the sensor unit and the blowing target is less than or equal to a limit distance.

In the driving of the driving unit according to the detection signal of the sensor unit, when the distance between the sensor unit and the blowing target exceeds a limit distance, the rotation angle of the driving unit is adjusted according to the position distribution of the blowing target detected by the sensor unit. Characterized in that it comprises a step.

In the adjusting of the rotation angle of the driving unit according to the position distribution of the blowing target detected by the sensor unit, a plurality of detectors disposed along the outside of the sensing zone surrounding the support unit detects the blowing target and detects the blowing target. The rotation angle of the driving unit is adjusted according to the arrangement angle of the detector.

The driving of the driving unit according to the sensing signal of the sensor unit may include adjusting the output of the driving unit according to the distance between the sensor unit and the blowing target when the distance between the sensor unit and the blowing target exceeds a limit distance. It is characterized by including.

Adjusting the output of the driving unit according to the distance between the sensor unit and the blowing target, comparing the distance and the set distance with the blowing target detected by a plurality of detectors disposed along the outside of the sensing zone surrounding the support; The output of the driving unit is increased when the distance between the detector and the blowing target exceeds the set distance, and the output of the driving unit is decreased when the distance between the detector and the blowing target is less than the set distance.

The fan and the fan control method according to the present invention can prevent the safety accident of the infant or child by detecting the proximity of the object to be blown and stopping the driving unit.

The fan and the fan control method according to the present invention can detect the position distribution of the blowing target to adjust the wind direction.

The fan and the fan control method according to the present invention can detect the distance to the object to be blown to adjust the air volume.

1 is a view schematically showing a fan according to an embodiment of the present invention.
2 is a view schematically showing a sensor unit in a fan according to an embodiment of the present invention.
3 is a view schematically showing a fan control method according to an embodiment of the present invention.
4 is a view schematically illustrating a rotation angle of the fan when the first sensor and the second sensor detect a blowing target in the fan control method according to an embodiment of the present invention.
5 is a view schematically showing the rotation angle of the fan when the first sensor to the third sensor detects the blowing target in the fan control method according to an embodiment of the present invention.
6 is a view schematically showing the air volume according to the distance to the blowing target in the fan control method according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of a fan and a fan control method according to the present invention. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or custom. Therefore, definitions of these terms should be made based on the contents throughout the specification.

1 is a view schematically showing a fan according to an embodiment of the present invention, Figure 2 is a view schematically showing a sensor unit in a fan according to an embodiment of the present invention. 1 and 2, the fan 1 according to an embodiment of the present invention includes a support 10, a support 20, a drive 30, a wing 40, and a cover. 50, the sensor part 60, and the control part 70 are included.

The supporting part 10 is mounted on the ground or mounted on a fixture such as a wall or a ceiling. A plurality of operation buttons 11 are formed in the supporting part 10, and as the user manipulates the operation button 11, the driving unit 30 is driven to rotate the wing 40.

The support 20 is mounted to the support 10. For example, the support 20 may be installed on the support 10 and moved up and down by an operation of a lever switch (not shown) to adjust the height of the wing 40.

The driving unit 30 is mounted to the support 20 and rotated about the longitudinal direction of the support 20 in the central axis. For example, the driving unit 30 is built in the drive cover 31 is rotatably mounted on the upper end of the support portion 20, the cover rotating body 32 for rotating the drive cover 31, the drive cover 31 The drive motor 33 is included. The cover rotating body 32 is built in the support 20 and rotates the driving cover 31 as power is applied. The drive motor 33 rotates the drive shaft 34 exposed to the outside of the drive cover 31 as power is applied.

The wing unit 40 is connected to the driving unit 30 and rotates to generate wind. That is, the wing 40 is rotated to discharge the air in all directions. As an example, the wing 40 is coupled to the drive shaft 34.

The cover 50 is formed to surround the wing 40. For example, the cover part 50 has a mesh shape and passes air therethrough, and includes a metal material or a resin material so that damage or deformation caused by external force is suppressed.

The sensor unit 60 is mounted on the support unit 20 to detect a blowing target. The blowing target means a person who wishes to cool down the heat, and any person detected by the sensor unit 60 may be regarded as a blowing target. For example, the sensor unit 60 may use an ultrasonic wave, a laser, an infrared signal, or the like.

The control unit 70 receives the detection signal of the sensor unit 60 to adjust the operating state of the drive unit 30. That is, when the sensor unit 60 detects the position distribution of the object to be blown and the distance between the object to be blown, the controller 70 adjusts the wind direction and the wind speed according to the position distribution of the object to be blown and the distance between the object to be blown. For example, the control unit 70 controls the cover rotating body 32 to adjust the rotation angle of the wing 40, and control the drive motor 33 to adjust the rotational speed of the wing 40. On the other hand, the control unit 70 is built in the support 10, can receive the operation signal of the operation button (11).

The sensor unit 60 according to an embodiment of the present invention includes a sensing stand 61, a detector 62, a cable 63, and a fixture 64. The sensing table 61 is composed of a pair. For example, the sensing table 61 has a curved surface, and both ends thereof overlap each other to surround the support 20. A plurality of detectors 62 are disposed along the outside of each of the pair of sensing tables 61, and detect the position distribution of the blowing target and the distance to the blowing target. That is, each detector 62 may detect a signal forward and detect a signal reflected from the blowing target to detect a position distribution of the blowing target and a distance to the blowing target. One end of the cable 63 is connected to each detector 62, and the other end is connected to the controller 70. The cable 63 transmits the detection signal measured by the detector 62 to the controller 70. The fixture 64 is fastened to the support 20 through the sensing table 61. For example, a screw is used as the fixing body 64, and the fixing body 64 is screwed to the support 20 through a pair of sensing bases 61 stacked thereon.

3 is a view schematically showing a fan control method according to an embodiment of the present invention, Figure 4 is when the first sensor and the second sensor in the fan control method according to an embodiment of the present invention detects a blowing target 5 is a view schematically illustrating a rotation angle of the fan, and FIG. 5 is a view schematically showing the rotation angle of the fan when the first to third sensors detect a blowing target in the fan control method according to an embodiment of the present invention. 6 is a view schematically showing the air volume according to the distance to the blowing target in the fan control method according to an embodiment of the present invention. Referring to Figures 1 to 6, the fan control method according to an embodiment of the present invention will be described.

When the user selects the operation button 11 formed on the support 10, the driving unit 10 is driven to rotate the wing portion 40 connected to the driving unit 10 (S10).

When the wing unit 40 is rotated to start blowing, the sensor unit 60 detects a blowing target (S20). The sensor unit 60 surrounds the support unit 20 mounted on the support unit 10, and a plurality of sensors 62 of the sensor unit 60 are disposed along the curved surface of the sensing table 61 to distribute the position of the air blowing target. You can detect the distance to the target.

The sensor unit 60 detects the position distribution of the blowing target and the distance to the blowing target, and transmits a detection signal to the controller 70, and the controller 70 receiving the detection signal controls the driving unit 30 to control the wind speed. The air volume can be adjusted.

That is, when the sensor unit 60 measures that the distance between the sensor unit 60 and the blowing target is less than or equal to the limit distance (S30), the control unit 70 controls the driving unit 30 to stop the rotation of the wing unit 40. (S70). The limit distance means a distance that may cause a safety accident due to the wing portion 40 in which the infant or child is rotated in proximity, and may be stored as a value set in the controller 70 during the initial design. For example, the limit distance may be 0.5 meters to 1.5 meters. When the infant or child reaches the limit distance and the driving of the driving unit 30 is stopped, the warning unit 80 may warn the user of danger by using a warning sound or a warning light (S80). Since the sensor unit 60 includes a sensing stand 61 surrounding the support 20 and a plurality of detectors 62 disposed along the outside of the sensing stand 61, the proximity of the infant or child is detected omnidirectionally. can do.

On the other hand, after the warning by the warning unit 80, the distance between the sensor unit 60 and the blowing target during the set time is measured, and if the distance between the sensor unit 60 and the blowing target after the set time is less than the limit distance, the system is terminated. can do. In addition, if the distance between the sensor unit 60 and the blowing target exceeds the limit after the set time, the driving unit 30 may be returned to step S10 of driving. For example, the set time may be 10 seconds to 30 seconds.

When the sensor unit 60 measures that the distance between the sensor unit 60 and the blowing target exceeds the limit distance (S30), the controller 70 adjusts the rotation angle of the driving unit 30 according to the position distribution of the blowing target. (S40). That is, a plurality of detectors 62 disposed along the outside of the sensing table 61 surrounding the support unit 20 detects a blowing target, and the driving unit 30 according to the arrangement angle of the detector 62 detecting the blowing target. The rotation angle of) is adjusted.

For example, the first sensor 621, the second sensor 622, and the third sensor 623 are disposed along the outside of the sensing table 61. If only the first sensor 621 and the second sensor 622 detect the object to be blown, the cover rotating body 32 becomes the rotation center axis, and the driving shaft 34 is on the vertical line of the first sensor 621. The rotation is repeated up to the vertical line of the second sensor 622 (see FIG. 4). In addition, when the first sensor 621 to the third sensor 623 detects the object to be blown, the cover rotating body 32 is a rotation center axis, the drive shaft 34 on the vertical line of the first sensor 621. The rotation is repeated up to the vertical line of the third sensor 623 (see FIG. 5). Thus, the air discharged through the wing portion 40 is discharged only within the position distribution of the object to be blown, the rotation of the drive unit 30 to a point outside the position distribution of the object to be blown is limited, thereby preventing unnecessary power consumption. .

When the sensor unit 60 measures that the distance between the sensor unit 60 and the blowing target exceeds the limit distance (S30), the controller 70 controls the driving unit 30 according to the distance between the sensor unit 60 and the blowing target. Adjust the output of (S50). That is, the control unit 70 compares the distance and the set distance with the blowing object detected by the plurality of detectors 62 disposed along the outside of the sensing table 61 surrounding the support unit 20, and the detector 62. ) And the distance between the blowing target and the blowing target increases the output of the driving unit 30, and decreases the output of the driving unit 30 when the distance between the detector 62 and the blowing target is less than the setting distance. In this case, the setting distance is a value previously input to the controller 70 and may be 2 meters to 3 meters.

For example, the first sensor 621, the second sensor 622, and the third sensor 623 are disposed along the outside of the sensing table 61. If the blowing target detected by the first sensor 621 is located at the set distance, the blowing target detected by the second sensor 622 is located farther than the set distance, and the blowing target detected by the third sensor 623 If the position is closer than the set distance, the blowing motor detected by the first sensor 621 is driven by the operation of the first operation button 11, the driving motor 33 is driven, the blowing blown by the second sensor 622 For the target, the output of the driving motor 33 is increased than the output of the driving motor 33 driven according to the operation of the first operating button 11, and for the blowing target detected by the third sensor 623, the first operating button The output of the drive motor 33 is reduced compared to the output of the drive motor 33 which was driven in accordance with the operation of (11).

More specifically, when there is a weak wind, a middle wind, and a strong wind button in the operation button 11, and the first middle wind operation button 11 is selected, the middle wind is output to the blowing target detected by the first sensor 621. Strong wind is output to the blowing target detected by the two sensors 622, and weak wind is output to the blowing target detected by the third sensor 623 (see FIG. 6). As a result, the air volume discharged through the wing 40 is adjusted according to the distance of the object to be blown, so that a plurality of objects to be blown can feel cool wind regardless of the distance to the fan 1.

As described above, when the stop signal is received while the air volume and the wind direction are adjusted according to the position distribution of the object to be blown and the distance between the object to be blown (S60), the controller 70 ends the driving of the driving unit 30.

The fan and the fan control method according to an embodiment of the present invention can prevent the safety accident of the infant or child by stopping the driving unit 30 by detecting the proximity of the object to be blown.

The fan and the fan control method according to an embodiment of the present invention can adjust the wind direction by detecting the position distribution of the blowing target.

The fan and the fan control method according to an embodiment of the present invention can adjust the air volume by sensing the distance to the object to be blown.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs can make various modifications and other equivalent embodiments therefrom. I will understand. Therefore, the true technical protection scope of the present invention will be defined by the claims below.

10: support portion 11: operation button
20: support part 30: drive part
31: drive cover 32: cover rotating body
33: drive motor 34: drive shaft
40 wing part 50 cover part
60: sensor unit 61: detection table
62: detector 63: cable
64: fixed body 70: control unit
80: warning unit

Claims (8)

Support portion is formed the operation button;
A circular support part mounted on the support part;
A driving part mounted to the support part and rotating around a longitudinal axis of the support part;
A wing unit connected to the driving unit to generate wind while rotating;
A cover part surrounding the wing part;
A sensor unit mounted to the support unit to detect a blowing target; And
Receiving a detection signal of the sensor unit includes a control unit for adjusting the operating state of the drive unit;
The sensor part is composed of two pieces, and a pair of sensing poles are arranged so that both ends are superimposed in a form surrounding the circular support, and a plurality of sensors are spaced apart along the outer circumference of the pair of sensing zones to signal forward. And a detector including a plurality of sensors for detecting a signal reflected from the blowing target and detecting a position distribution of the blowing target, and a cable for connecting the detector to the control unit to transmit a detection signal generated by the detector to the control unit. And a fixing body penetrating the nested sensing table to fix the sensing table to the support.
A fan
delete Driving the drive unit to rotate the wing unit when an operation button formed on the support unit is selected;
It is disposed in the form of surrounding the circular support portion mounted to the support portion, the two ends are overlapping a plurality of spaced along the outer periphery of the pair of sensing zone and the pair of sensing zone disposed in the form surrounding the support. And a detector including a plurality of sensors configured to irradiate a signal forward and detect a signal reflected from a blowing target to detect a position distribution of the blowing target, and connect the detector to a controller, and detect the detected signal generated by the detector. Sensing a blowing target by using a sensor unit configured to penetrate a cable to be transmitted to a control unit and an overlapping portion of the sensing unit to fix the sensing unit to the support unit; And
Driving the driving unit in accordance with the detection signal of the sensor unit,
Driving the drive unit,
The driving unit stops when the distance between the sensor unit and the blowing target is less than or equal to the limit distance, and when the blowing object is located below the limit distance for a predetermined time, the system is terminated, and the distance between the sensor unit and the blowing target is the limit distance. If exceeded, the driving unit is restarted,
The detector disposed along the outside of the sensing zone surrounding the support portion detects the blowing target, and the rotation angle of the drive unit is adjusted according to the arrangement angle of the detector for detecting the blowing target.
Fan control method characterized in that.
delete delete delete The method of claim 3, wherein the driving of the driving unit according to the detection signal of the sensor unit comprises:
And controlling the output of the driving unit according to the distance between the sensor unit and the object to be blown when the distance between the sensor unit and the object to be blown exceeds a limit distance.
The method of claim 7, wherein adjusting the output of the driving unit according to the distance between the sensor unit and the blowing target,
Compare the distance and the set distance with the blowing object detected by the plurality of detectors disposed along the outside of the sensing zone surrounding the support,
When the distance between the detector and the blowing target exceeds the set distance, the output of the driving unit is increased,
And the output of the driving unit is reduced when the distance between the detector and the object to be blown is less than the set distance.

Images