KR20190141912A - Smart electric fan equipped with automatic stop function - Google Patents

Abstract

The prevent invention relates to a smart electric fan including an automatic stop function. According to the present invention, the smart electric fan including the automatic stop function includes: a lower housing; a support unit in which one end is connected to the lower housing; an upper housing connected to the other end of the support unit; a driving unit accommodated in the upper housing; a rotation wing unit rotating by a rotation force provided by the driving unit; an infrared sensor unit installed in the lower housing to face the rotation wing unit and sensing a heat release subject approaching the rotation wing unit; and a control unit blocking a rotation force provided to the rotation wing unit by controlling the driving unit in case that it is determined that the heat release subject enters a predetermined dangerous area, by receiving a sensed signal transmitted by the infrared sensor unit. According to the present invention, the smart electric fan including the automatic stop function can guarantee the safety of people and animals by stopping a motion of the fan when in a dangerous situation is determined by analysis on an approach distance and an approach speed of the heat release subject such as the people and the animals.

Description

Smart fan with automatic stop function {SMART ELECTRIC FAN EQUIPPED WITH AUTOMATIC STOP FUNCTION}

The present invention relates to a smart fan equipped with an automatic stop function. More specifically, the present invention is to ensure the safety of people, animals, etc. by stopping the operation of the fan when it is determined that the dangerous situation through the analysis of the access speed and the distance of the heat-emitting object such as people, animals, etc. It relates to a smart fan equipped with an automatic stop function.

The fan is a device that provides wind by the action of injecting air from the rear of the blade and sending it out to the front of the blade by rotating the blade installed on the shaft of the motor.

In general, such a fan can control the strength of the wind by controlling the rotational speed of the motor by adjusting the applied voltage of the drive motor, and the blade for blowing blows at a very high speed to prevent safety accidents caused by the blade. To this end, the front cover and the rear cover are provided at the front and the rear of the wing.

The front cover and the rear cover are designed to allow the air to flow smoothly. Children who are curious or who do not know that the high-speed rotating blades are dangerous are injured by the high-speed rotating wings by placing their fingers through the holes of the front cover or the rear cover. Accidents are often happening, and there is an increasing number of accidents injured by a rapidly growing pet.

In order to prevent such safety accidents, a separate net may be installed, but since the net itself may be easily damaged, it is difficult to have a great effect in preventing safety accidents such as children.

In order to solve such a problem in the prior art, Korean Laid-Open Utility Model Publication No. 20-2009-0001780 discloses a technology for automatically blocking the operation of the fan using a human body sensor.

However, according to the technology disclosed in the Republic of Korea Utility Model Publication No. 20-2009-0001780, even if it is not a dangerous situation, when the human body is detected, the operation of the fan is unnecessarily frequently stopped, causing inconvenience to the user. have.

Republic of Korea Utility Model Publication No. 20-2009-0001780 (Publication date: February 25, 2009, Name: Fan with safety accident prevention function)

The present invention has an automatic stop function to ensure the safety of people, animals, etc. by stopping the operation of the fan when it is determined that the dangerous situation through the analysis of the approach speed and the distance of the heat-emitting object such as people, animals, etc. It is a technical problem to provide a smart fan provided.

In addition, the present invention is to determine the dangerous situation related to the operation of the fan in two stages and to perform the appropriate control operation, the operation of the fan is stopped unnecessarily to avoid the problem that causes inconvenience to the user and at the same time the possibility of a safety accident It is a technical task to provide a smart fan with an automatic stop function that can minimize the degree of safety accidents that can be blocked or occurred.

In addition, the present invention is equipped with an automatic stop function to prevent the risk of safety accidents caused by excessive access of people, animals, etc. by outputting a warning signal (warning sound or warning light) when it is determined as a dangerous situation or a preliminary dangerous situation. It is a technical subject to provide the smart fan which was made.

In another aspect, the present invention is to provide a smart fan with an automatic stop function that allows the user to easily and conveniently grip the handle to move the fan.

Smart fan equipped with an automatic stop function according to the present invention for solving this technical problem is a lower housing, a support coupled to one end of the lower housing, an upper housing coupled to the other end of the support, a drive unit accommodated in the upper housing, The rotary wing unit rotates by the rotational force provided by the drive unit, the infrared sensor unit and the infrared sensor unit which is installed in the lower housing to face the rotary wing portion and detects the heat-releasing object approaching the rotary wing unit to transmit And a controller for analyzing the detection signal to block the rotational force provided to the rotary wing by controlling the driving unit when it is determined that the heat-emitting object enters a preset dangerous area.

In the smart fan equipped with an automatic stop function according to the present invention, the control unit, the heat emission through the analysis of the light emitting signal transmitted by the infrared sensor unit and the light receiving signal is a signal reflected on the heat-emitting object Compute the approach speed of the object and the distance between the heat-emitting object and the rotary wing, and if the calculated approach speed exceeds the speed threshold and the calculated distance is less than the first distance threshold to control the drive to provide to the rotary wing. When the calculated distance is less than the second distance threshold less than the first distance threshold, characterized in that to stop the operation of the drive unit is characterized in that to block the rotational force provided to the rotary wing.

In the smart fan equipped with an automatic stop function according to the present invention, the infrared sensor unit, a predetermined angle (for example, -10 degrees to +10 degrees based on a connecting line connecting the center of the infrared sensor unit and the center of the rotary wing unit) To -45 degrees or more +45 degrees, characterized in that installed in the lower housing so as to detect the space area of the fan (adjustable according to the size and use environment of the fan).

In the smart fan with an automatic stop function according to the invention, the infrared sensor unit is characterized in that it comprises a plurality of infrared sensors spaced apart from each other.

In the smart fan equipped with an automatic stop function according to the present invention, the infrared sensor unit is characterized in that for detecting at least one space area of the front space region and the rear space region of the rotary wing.

Smart fan equipped with an automatic stop function according to the present invention further comprises a warning signal output unit for outputting a warning signal (warning sound or warning light), the control unit, the calculated approach speed of the heat-emitting object exceeds the speed threshold The warning signal output unit may control to output the warning signal when the calculated distance is less than or equal to a first distance threshold.

Smart fan equipped with an automatic stop function according to the present invention is installed in the lower housing and further comprises a user command input unit for receiving a user command, the control unit, the automatic stop mode is input through the user command input unit In this case, the control operation related to the automatic stop may be performed.

Smart fan equipped with an automatic stop function according to the present invention further comprises an annular handle portion coupled to the rear portion of the upper housing, the rear portion of the upper housing is inclined to the coupling region portion and the coupling region portion to which the handle portion is coupled Including an extended inclined area portion, characterized in that there is a space between the inclined area portion and the handle portion can be inserted into the user's hand holding the handle portion.

According to the present invention, if it is determined that the dangerous situation through the analysis of the approaching speed and the distance of the heat-dissipating object such as people, animals, etc., the automatic stop to ensure the safety of people, animals, etc. by stopping the operation of the fan The smart fan provided with the function is provided.

In addition, by determining the dangerous situation related to the operation of the fan in two stages and to ensure that the appropriate control operation is performed, the operation of the fan is stopped unnecessarily to prevent problems that cause inconvenience to the user and at the same time to prevent the possibility of a safety accident The smart fan is provided with an automatic stop function that can minimize the degree of safety accidents that may occur.

In addition, when it is determined that a dangerous situation or a preliminary dangerous situation, by outputting a warning signal smart fan equipped with an automatic stop function to prevent the risk of accidents caused by excessive access of people, animals, etc. have.

In addition, there is an effect that a smart fan with an automatic stop function that allows the user to move the fan by holding the handle easily and conveniently.

1 is a functional block diagram of a fan equipped with an automatic stop function according to an embodiment of the present invention,
Figure 2 is an exemplary perspective view of a fan with an automatic stop function according to an embodiment of the present invention,
3 is a view showing an exemplary coupling configuration of the upper housing and the handle portion in the fan with an automatic stop function according to an embodiment of the present invention,
4 is a view for explaining an exemplary operation of a fan with an automatic stop function according to an embodiment of the present invention.

Specific structural or functional descriptions of the embodiments according to the inventive concept disclosed herein are provided only for the purpose of describing the embodiments according to the inventive concept. It may be embodied in various forms and is not limited to the embodiments described herein.

Embodiments according to the inventive concept may be variously modified and have various forms, so embodiments are illustrated in the drawings and described in detail herein. However, this is not intended to limit the embodiments in accordance with the concept of the invention to the specific forms disclosed, it includes all changes, equivalents, or substitutes included in the spirit and scope of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 is a functional block diagram of a fan with an automatic stop function according to an embodiment of the present invention, Figure 2 is an exemplary perspective view of a fan with an automatic stop function according to an embodiment of the present invention, Figure 3 In the fan equipped with an automatic stop function according to an embodiment of the present invention, it is a view showing an exemplary coupling configuration of the upper housing and the handle portion.

1 to 3, the fan equipped with an automatic stop function according to an embodiment of the present invention, the lower housing 10, the support 20, the upper housing 40, the handle 50, the driving unit ( 60, a rotary wing unit 70, an infrared sensor unit 80, a warning sound output unit 90, a user command input unit 100, a control unit 110, and a protection net 120.

The lower housing 10 performs a function of a pedestal for structurally supporting and centering a fan equipped with an automatic stop function according to an embodiment of the present invention. An infrared sensor unit 80 and a warning sound output unit (to be described later) 90) provides a space in which components such as the user command input unit 100 and the control unit 110 are installed.

One end of the support 20 is coupled to the lower housing 10, and the other end of the support 20 is coupled to the upper housing 40.

The upper housing 40 is coupled to the other end of the support 20, and serves to receive a drive unit 60 made of a drive motor, a rotary shaft, and the like.

The upper housing 40 may be detachably coupled to the handle 50 to allow the user to easily move the fan, which will be described in detail later.

The rotary wing unit 70 is a component that rotates by the rotational force provided by the driving unit 60 and may have any shape capable of supplying a sufficient amount of air to the user.

The infrared sensor unit 80 is installed in the lower housing 10 so as to face the rotary wing unit 70 positioned upward, and performs a function of detecting a heat-emitting object approaching the rotary wing unit 70.

For example, the infrared sensor unit 80 may have a predetermined angle (eg, -10 degrees or more and +10 degrees or less) based on a connection line connecting the center of the infrared sensor portion 80 and the center of the rotary vane 70. It may be installed in the lower housing 10 so as to detect the space area of the fan (adjustable according to the size and use environment of the fan, such as 45 degrees or more +45 degrees). The predetermined angle may be a preset value or provide a user with an option for setting the angle.

For example, the infrared sensor unit 80 may be configured as a single infrared sensor, or alternatively, may include a plurality of infrared sensors spaced apart from each other. The infrared sensor unit 80 may be configured to detect at least one space area among the front space area and the rear space area of the rotary wing 70. If the condition that can accurately and efficiently detect the heat-emitting object is satisfied, there is no particular limitation on the specific number and installation position of the infrared sensor constituting the infrared sensor unit 80.

The controller 110 analyzes the detection signal transmitted from the infrared sensor unit 80 and controls the operation of the driving unit 60 to the rotary wing unit 70 when it is determined that the heat-emitting object enters the preset dangerous area. It performs a function to block the provided rotational force.

For example, the controller 110 may include 1) an approach speed and a heat release of the heat-emitting object by analyzing a light-emitting signal transmitted from the infrared sensor unit 80 and a light-receiving signal which is a signal reflected from the heat-emitting object. Compute the distance between the emergent object and the rotary wing 70, 2) If the calculated approach speed exceeds the speed threshold and the calculated distance is less than the first distance threshold to control the drive unit 60 to rotate the rotary wing 70 It may be configured to reduce the rotational force provided by 3, and to stop the operation of the drive unit 60 to block the rotational force provided to the front wing when the calculated distance is less than the second distance threshold less than the first distance threshold. As such, the control unit 110 determines the dangerous situation related to the operation of the fan in two stages, and allows the control operation to be appropriately performed. Thus, the operation of the fan is stopped unnecessarily, thereby preventing the user from inconvenience and causing safety. The possibility of accidents can be blocked or the degree of safety accidents that can occur can be minimized.

The warning sound output unit 90 performs a function of outputting a warning sound according to the control of the control unit 110, and the control unit 110, the calculated approach speed of the heat-emitting object exceeds the speed threshold and the calculated distance is the first When the distance is less than the threshold value, the warning sound output unit 90 may be controlled to output a warning sound, thereby preliminarily warning the dangerous situation. When the warning signal is a warning light or a warning sound and a warning light is provided at the same time, the warning sound output unit 90 may be replaced by a warning light output unit or a warning signal output unit.

The user command input unit 100 is installed in the lower housing 10 and is a component for receiving a user command and displaying various information including a current operation state of the fan to the user. For example, the user command input unit 100 may be implemented by a touch screen method, but is not limited thereto. The user command input unit 100 may be configured by a combination of a push button and a display means such as an LED or a remote control method.

The controller 110 may be configured to perform a control operation related to auto stop only when the auto stop mode is input through the user command input unit 100. According to such a configuration, the user himself may be configured to Since the operation mode can be suitably determined, user convenience with respect to the use of the fan is improved.

As enlarged in FIG. 3, the annular handle portion 50 is coupled to the rear portion of the upper housing 40, and the rear portion of the upper housing 40 has an engaging region portion to which the handle portion 50 is coupled. And an inclined region portion 44 extending obliquely to the engagement region portion 42. According to this configuration, since there is a space between the inclined region 44 and the handle 50, the user's hand holding the handle 50 can be inserted, so that the user grips and moves the fan User convenience in such a process is improved. The handle 50 and the upper housing 40 are preferably fixed to each other, but may be configured to be detachable according to the size of the fan (for example, a small fan) or the use environment (for example, a battery operated fan). have.

The guard net 120 is coupled to the upper housing 40 while accommodating the rotary wing 70, and performs a function of primarily preventing a possibility of a safety accident due to the rotation of the rotary wing 70.

4 is a view for explaining an exemplary operation of a fan with an automatic stop function according to an embodiment of the present invention.

Referring to FIG. 4, in step S110, a process for selecting an automatic stop mode is performed by a user who intends to operate the fan through the user command input unit 100 provided in the lower housing 10. The control unit 110 receives the automatic stop mode selection signal and then performs the following operations.

In operation S120, the infrared sensor unit 80, which is activated by being supplied with power under the control of the controller 110, detects the heat-emitting object near the fan, that is, the heat-emitting object approaching the rotary wing unit 70 of the fan. The process is performed.

In step S130, the infrared sensor unit 80 performs a process of transmitting the detection signal to the control unit 110 in real time.

In operation S140, the control unit 110 receiving the detection signal from the infrared sensor unit 80 receives the detection signal, that is, the light emission signal and the light emission signal transmitted from the infrared sensor unit 80 are signals reflected by the heat-emitting object. Through the analysis of the signal, a process of calculating the approach speed and the distance between the heat-emitting object and the rotary wing 70 is performed.

In operation S150, the controller 110 compares the calculated access speed with a speed threshold previously set and stored in the storage medium. If the comparison result in step S150 exceeds the speed threshold, it is switched to step S160, otherwise it is switched to step S120.

In operation S160, the controller 110 compares the calculated distance, that is, the distance between the heat dissipating object and the rotary wing unit 70 with the first distance threshold that is preset and stored in the storage medium. As a result of the comparison in step S160, if the distance between the heat-emitting object and the rotary wing 70 is less than or equal to the first distance threshold, the process switches to step S170 and step S180, and otherwise, to step S120. Steps S170 and S180 are performed when the current situation is determined by the controller 110 as a preliminary dangerous situation in which a safety accident may occur.

In step S170, a process of reducing the rotational force provided to the rotary wing unit 70 by controlling the driving unit 60 by determining the current situation as a preliminary dangerous situation is performed.

In operation S180, the controller 110 controls the warning sound to be output by the warning sound output unit 90. For example, steps S170 and S180 for coping with the preliminary dangerous situation may be performed simultaneously or sequentially.

In operation S190, the controller 110 compares the distance between the heat-emitting object and the rotary wing unit 70 with the second distance threshold that is preset and stored in the storage medium. The second distance threshold is smaller than the first distance threshold, and when the heat-emitting object is close to within the second distance threshold, the controller 110 determines that the current situation is very dangerous. As a result of the comparison in step S190, when the distance between the heat-emitting object and the rotary wing 70 is less than or equal to the second distance threshold, the process is switched to step S200. Otherwise, the processes of steps S170 and S180 are continued.

Step S200 is a procedure performed in a situation where the heat-emitting object is close to within the second distance threshold, and the controller 110 stops the operation of the driving unit 60 to block the rotation force provided to the rotary wing unit 70.

As described in detail above, according to the present invention, when it is determined that the dangerous situation through the analysis of the approach speed and the distance of the heat-releasing object such as people, animals, etc. by stopping the operation of the fan to ensure the safety of people, animals, etc. There is an effect that is provided with a smart fan with an automatic stop function to enable it.

In addition, by determining the dangerous situation related to the operation of the fan in two stages and to ensure that the appropriate control operation is performed, the operation of the fan is stopped unnecessarily to prevent problems that cause inconvenience to the user and at the same time to prevent the possibility of a safety accident The smart fan is provided with an automatic stop function that can minimize the degree of safety accidents that may occur.

In addition, when it is determined that the dangerous situation or preliminary dangerous situation by outputting a warning sound smart fan with an automatic stop function that can prevent the risk of accidents caused by excessive access of people, animals, etc. is provided. .

In addition, there is an effect that a smart fan with an automatic stop function that allows the user to move the fan by holding the handle easily and conveniently.

10: lower housing
20: support
40: upper housing
42: joining area
44: slope area
50: handle portion
60: drive unit
70: rotary wing
80: infrared sensor unit
90: beep output
100: user command input unit
110: control unit
120: protection net

Claims (8)

Lower housing;
A support having one end coupled to the lower housing;
An upper housing coupled to the other end of the support;
A drive unit accommodated in the upper housing;
A rotary wing unit rotating by a rotation force provided by the driving unit;
An infrared sensor unit installed in the lower housing so as to face the rotary wing and detecting a heat-emitting object approaching the rotary wing; And
And a controller for analyzing the sensing signal transmitted from the infrared sensor unit and controlling the driving unit to block the rotational force provided to the rotary wing unit when it is determined that the heat-emitting object enters a preset dangerous area. Equipped with a smart fan.
The method of claim 1,
The control unit,
The approaching speed of the heat-emitting object and the distance between the heat-emitting object and the rotary wing unit are calculated by analyzing the light-emitting signal transmitted from the infrared sensor unit and a light-receiving signal which is a signal reflected by the heat-emitting object. When the calculated approach speed exceeds the speed threshold and the calculated distance is equal to or less than the first distance threshold, the driving force is reduced to reduce the rotational force provided to the rotary vane, and the second calculated distance is smaller than the first distance threshold. When the distance is less than the threshold value, characterized in that to stop the rotation force provided to the rotary wing by stopping the operation of the drive unit, a smart fan with an automatic stop function.
The method of claim 1,
The infrared sensor unit,
Smart fan with an automatic stop function, characterized in that installed in the lower housing so as to detect a spatial region of a predetermined angle with respect to the connection line connecting the center of the infrared sensor portion and the center of the rotary wing.
The method of claim 3,
The infrared sensor unit is characterized in that it comprises a plurality of infrared sensors spaced apart from each other, a smart fan with an automatic stop function.
The method of claim 3,
The infrared sensor unit is a smart fan with an automatic stop function, characterized in that for detecting at least one space area of the front space area and the rear space area of the rotary wing.
The method of claim 2,
Further comprising a warning signal output unit for outputting a warning signal,
The control unit,
And the warning signal output unit controls the warning signal output unit to output the warning signal when the calculated approach speed of the heat-emitting object exceeds a speed threshold and the calculated distance is equal to or less than a first distance threshold. fan.
The method of claim 2,
Installed in the lower housing and further comprises a user command input unit for receiving a user command,
The control unit,
Smart fan with an automatic stop function, characterized in that for performing a control operation related to the automatic stop only when the automatic stop mode is input through the user command input unit.
The method of claim 1,
Further comprising an annular handle coupled to the rear portion of the upper housing,
The rear portion of the upper housing includes a coupling region portion to which the handle portion is coupled and an inclined region portion which is inclinedly extended to the coupling region portion,
Smart fan having an automatic stop function, characterized in that there is a space between the inclined area portion and the handle portion can be inserted into the user's hand holding the handle portion.

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