KR20120133530A - Frost removing for Fan - Google Patents

Abstract

PURPOSE: A frost removing fan capable of effectively remove dew from leaves of crops is provided to prevent the freezing and frost injury of the crops. CONSTITUTION: A frost removing fan comprises the following: a fixing member(20) with the predetermined length, vertically installed on the ground; a guide motor(100) installed on the upper inside of the fixing member; a slip ring(200) for supplying electricity to a rotating fan motor(520); a rotor(210) located on the upper side of a geared motor; ring terminals(220) arranged inside the rotor in a concentric circle shape; a supporter(300) located on the upper side of the fixing member, including a main body rotated by the geared motor; a bearing unit(400) located in between the slip ring and the supporter; a fan unit including a fan(510) and the fan motor; and a tilting unit moving the supporter upward and downward for diffusing wind generated from the fan.

Description

Disaster Prevention Fan {Frost removing for Fan}

The present invention relates to a disaster prevention fan installed in a place where frost damage of a plant or a crop may occur, and more specifically, the plant or crop is frozen by a low temperature through a disaster prevention fan that is rotated 360 degrees by installing a slip ring. To prevent freezing and frost injury damage.

In general, an air conditioner is installed in a building to cool an indoor area, and the air conditioner performs functions of cooling indoor air and purifying air. However, the agricultural facilities such as small factories and plastic houses are not easy to install the air conditioner and the cooling efficiency is also poor, and still cooling by using a blower fan.

The blower fan is used together with an air conditioner or a separate air conditioner for cooling the room and air ventilation in a large auditorium, a restaurant, a gym, and the like. The blower fan circulates the internal air or cools the air, thereby lowering the temperature inside the factory when it is used in the factory, improving work efficiency of the worker, and lowering the internal temperature of the vinyl house when used in agriculture. It circulates air to help grow the crops in the plastic house.

However, such a blowing fan is used in a factory, an auditorium, or a plastic house so that a separate fixing frame is used in a fixed state to direct the wind by a large blowing fan in a predetermined direction or a simple left and right rotation operation is possible. .

Therefore, since the circulation efficiency for circulating the air in the interior space is not high and the blowing air cannot be supplied evenly to the interior space, there is a problem that a large number of large fans must be installed in the plastic house for uniform air blowing as a whole. In this case, too, the smooth air blowing is not easy, causing an increase in installation cost.

In addition, the blowing fan may be installed in a growing area in which crops are grown together with a plastic house to be used for removing dew or frost formed on the crops, and by using wind generated in the fan when dew is formed on the crops. It is used for the purpose of removing the dew.

However, the blowing fan has a problem that it is difficult to remove dew or frost on crops grown in a wide cultivation area while the direction is fixed to a specific position, which causes frostbite that freezes plant tissue due to low temperature ( Damage caused by freezing and frost injury occurred, and urgent countermeasures were needed.

Embodiments of the present invention to prevent frostbite that can occur in a farm having a large cultivation area through a 360 degree rotation disaster prevention fan.

Embodiments of the present invention are to detect the weather conditions around the disaster prevention fan and thereby selectively operate only when the disaster prevention fan operation is necessary.

Disaster prevention fan according to an embodiment of the present invention has a predetermined length and is installed upright on the ground and the gear member is seated in the upper gear inner motor; A rotor disposed above the geared motor, a ring terminal formed of different diameters and facing each other in concentric circles within the rotor, and a spring in which a predetermined tension is maintained in a vertical direction between the ring terminals. A slip ring comprising a washer; A support portion provided on an upper end of the fixing member and including a main body rotated by the geared motor; A bearing portion disposed between the slip ring and the support portion; A fan part mounted on an upper part of the support part, the fan part including a fan for generating wind by receiving power through the slip ring and a fan motor for providing rotational force to the fan; And a tilting part provided inside the support part to move the support part upward and downward to spread the wind generated from the fan to the ground.

The rotor is formed in a disk shape and the first groove is provided with a ring terminal is inserted toward the lower surface and the first rotor is rotated by receiving the rotational force generated from the geared motor; And a second rotor fixed to the lower portion of the first rotor and provided with a second groove portion into which the ring terminal is inserted.

The ring terminal may include a first ring terminal inserted into the first groove and electrically connected to a plurality of wires for supplying power to the fan motor; And a second ring terminal inserted into the second groove and provided to supply power to a wire connected to the first ring terminal.

The spring washer has a ring shape and is bent upward and downward along the circumferential direction.

The tilting unit includes a motor installed in a main body, a worm wheel connected to a motor shaft provided in the motor, and a worm gear provided in a shaft disposed in a horizontal direction inside the main body and engaged with the worm wheel.

The disaster prevention fan further includes a control unit for detecting a gaseous state around the fixing member to adjust the rotational speed per minute of the fan and the tilting angle of the support unit.

The control unit includes a wind speed sensor for sensing the wind speed around the disaster prevention fan, and a temperature sensor for sensing the temperature, and if the wind speed and temperature detected by the wind speed sensor and the temperature sensor is less than the reference value of the fan; The speed of revolution per minute is controlled to increase, and when the wind speed and temperature detected by the wind speed sensor and the temperature sensor are greater than or equal to the reference value, the speed of revolution of the fan may be reduced.

Embodiments of the present invention can effectively remove the dew formed on all crops by spreading the wind blowing toward the cultivation area while the disaster prevention fan is rotated 360.

Embodiments of the present invention is effective to prevent frostbite of crops grown in the cultivation area through weather conditions, wind speed and temperature data around the cultivation area, and to notify the manager according to the sudden change of the weather condition. .

1 is a view showing an example installed a disaster prevention fan according to an embodiment of the present invention.
Figure 2 is an exploded perspective view showing a disaster prevention fan according to an embodiment of the present invention.
Figure 3 is an exploded perspective view showing the configuration of the slip ring according to an embodiment of the present invention.
Figure 4 is a partial cross-sectional view of the disaster prevention fan according to an embodiment of the present invention.
5 is a side view of the combination of the disaster prevention fan according to an embodiment of the present invention.
6 is a block diagram showing the configuration of a control unit according to an embodiment of the present invention.
7 is a view showing a tilting unit provided in the disaster prevention fan according to an embodiment of the present invention.
8 to 9 are views showing a configuration according to another embodiment of the disaster prevention fan according to another embodiment of the present invention.
10 to 11 is an operational state diagram of the disaster prevention fan according to an embodiment of the present invention.

The configuration of the disaster prevention fan according to an embodiment of the present invention will be described with reference to the accompanying drawings. 1 is a view showing an example of a disaster prevention fan is installed according to an embodiment of the present invention, Figure 2 is an exploded perspective view showing a disaster prevention fan according to an embodiment of the present invention, Figure 3 is the present invention 4 is an exploded perspective view of a slip ring installed on a fixing member according to an embodiment of the present invention, and FIG. 4 is a partially coupled cross-sectional view of a disaster prevention fan according to an embodiment of the present invention.

Referring to FIG. 1, the disaster prevention fan 1 includes a fixing member 10 installed upright from the ground on one side of a cultivation area A in which a plurality of crops 2 are grown, and the fixing member ( It comprises a fan 510 provided on the upper portion 10, and a control unit 700 for controlling the operation state of the disaster prevention fan (1). The fixing member 10 preferably has a length of 10 m or less from the ground, but may be changed according to the conditions of the cultivation area (A) and is not necessarily limited to the length.

Referring to FIG. 2, the fixing member 10 has a hollow cylindrical shape, and a geared motor 100 is embedded therein. The geared motor 100 integrates a motor (not shown) and a reducer (not shown), and is configured to reduce the rotation of a motor serving as a power source by outputting a plurality of gear sets. For example, the geared motor 100 may be used to adjust the rotation speed at a constant speed, such as the disaster prevention fan 1, and the fixing member 10 may have an upper inner circumferential surface in order to achieve stable seating of the geared motor 100. It may be curved or stepped (not shown) may be provided.

The disaster prevention fan 1 includes a geared motor 100 inside the upper end of the fixing member 10, a slip ring 200 inserted into the housing 201, and a slip ring 200 inserted into the housing 201. It includes a boss (30) seated on the upper portion, a bearing portion (400) inserted into the outer circumferential surface of the boss (30), and a flange (20) seated on the upper portion of the boss (30).

The housing 201 has an insertion groove provided therein for the stable rotation operation of the slip ring 200, and an insertion hole for inserting the slip ring 200 is provided at the bottom thereof so that the installation of the slip ring 200 can be performed. Stable insertion of the motor shaft provided in the geared motor 100 can be attained.

Referring to FIG. 2, the supporting part 300 is provided at the upper end of the fixing member 10, and rotated in a plane by the geared motor 100 and the body 310 of the main body 310. It includes a side plate 312 provided on the left and right, and a back plate 314 provided on the back. The main body 310 is made of a rectangular plate material and the motor shaft provided in the geared motor 100 is coupled to the bottom surface, and rotates 360 degrees in a plane around the fixing member 10 in accordance with the rotation of the motor shaft. .

The support part 300 includes a fan support part 320 installed on the front surface of the main body 310, and the fan support part 320 is modified according to the installation of the fan 510 and the fan motor 520 which will be described later. It is preferable to use an iron plate in which a predetermined rigidity is maintained so that this does not occur.

The support part 300 is installed on a fan support plate 322 on which the fan motor 520 is installed, a side plate 324 installed on the left and right sides of the fan support plate 322, and a front surface of the fan support plate 322. It consists of the front plate 326. The fan support plate 322 is coupled to the fan motor 520 and a plurality of through holes 322a are formed on the upper surface for stable fixing of the fan motor 520. A separately provided bolt is coupled to the through hole 322a to fix the fan motor 520 to the fan support plate 322.

The fan unit 500 includes a fan 510 supplied with power through the slip ring 200, and includes a fan motor 520 for rotating the fan 510. The fan 510 is provided with a safety net on the outside to prevent a safety accident due to the rotation of the fan 510.

2 to 4, the fixing member 10 is composed of a first fixing member 11 and a second fixing member 12, each made of a separate type. The first fixing member 11 has a predetermined length and is made of a hollow tube inside and installed upright on the ground, and the second fixing member 12 has a geared motor 100 inserted therein. It is coupled to the outside of the upper end of the first fixing member (11).

Since the second fixing member 12 is provided for the installation of the geared motor 100, the second fixing member 12 has a relatively short length compared to the first fixing member 11, and has an inner circumference for fixing with the first fixing member 11. A first locking jaw 12b protruding along the direction is provided, and a second locking jaw 12b for seating the slip ring 200 is provided at a position where the inner diameter of the upper portion of the first locking jaw 12a is extended. . The first catching jaw 12a is disposed at an inner middle position of the second fixing member 12.

As such, the first fixing member 11 and the second fixing member 12 are separately formed so that the installation of the disaster prevention fan 1 including the geared motor 100 and the slip ring 200 may be installed. The first fixing member 11 may be combined with the first fixing member 11 at the installation site after being preferentially applied to the fixing member 12.

The second fixing member 12 has the same inner diameter at the lower side of the inner middle, and has an enlarged pipe at the upper side thereof. Since the second fixing member 12 is inserted into the first fixing member 11 at the lower side, maintaining the same inner diameter can maintain a stable coupling state, and inserting and seating the slip ring 200 at the upper side thereof. It is preferable that it is made in the form of expansion for.

The slip ring 200 is provided to supply power to the rotating fan motor 520, and is installed in the rotating fan as in the present embodiment, or various automation processes and rotary devices, excavators, helicopters, radars, and centrifuges. It is applied to various fields such as multi-axis measuring device and printing machine, and it is used in various kinds according to the number of rotations, required capacity, contact point, installation place and conditions according to the purpose of use.

The slip ring 200 is formed in a disc shape and is provided with a rotor 210 that is simultaneously rotated in combination with a motor shaft provided in the geared motor, and at the lower side of the rotor 210, an electrical connection with the rotor 21 is achieved. Ring terminals 220 having ring shapes having different diameters are disposed to each other, and include spring washers 230 in which a predetermined tension is maintained in the vertical direction between the ring terminals 220.

The rotor 210 is composed of a first rotor 212 and a second rotor 214, the first rotor 212 is rotated in conjunction with the operation of the geared motor 100 and the second rotor 214 is It is made to remain fixed.

The first rotor 212 is formed in a disk shape and has a first groove portion 212a into which the ring terminal 220 is inserted toward the lower surface thereof, and a hole 212c into which the motor shaft of the geared motor 100 is inserted. It is provided and is installed in a state seated on the lower side of the boss (30). The first groove 212a is formed in different diameters with the center of the first rotor 212 as the concentric circles, and in the present embodiment, four grooves will be described. Typically, since the fan motor 520 requires four wires for three-phase power supply and grounding, the first groove part 212a is described as four in the present embodiment. The first groove 212a is provided with partition walls 212d so as to be partitioned independently from each other, and has a predetermined length and extends downward. The first rotor 212 is provided with a wire hole 212b into which a wire W for the three-phase power supply and ground is inserted.

The second rotor 214 has a structure corresponding to the first rotor 212 described above, the second groove 214a is provided toward the upper surface and the hole 214b into which the motor shaft of the geared motor 100 is inserted ) Is provided and installed in a fixed state inside the housing 201. The second groove portion 214a has a different diameter with the center of the second rotor 214 as a concentric circle, and in the present embodiment, four grooves will be described. The second groove portion 214a is provided with a partition wall 214d so as to be partitioned independently from each other, and has a predetermined length and extends upward.

The ring terminal 220 includes a first ring terminal 222 and a second ring terminal 224 disposed between the first and second rotors 212 and 214. The first ring terminal 222 is inserted into the first groove 212a and connected to the fan motor 520 to be electrically connected to a plurality of wires w for supplying power, and having a different diameter (first groove) 212a). The first ring terminal 222 has a predetermined thickness but does not exceed the depth of the groove formed in the first groove 212a. This is because the space for the installation of the spring washer 230 to be described later and the operation of the geared motor 100 in order to achieve a stable rotation of the rotor (212).

The second ring terminal 224 is inserted into the second groove portion 214a and electrically connected to the plurality of wires w for supplying power to the fan motor 520 and the first groove portion 212a having a different diameter from the first groove portion 212a. With a corresponding diameter. The second ring terminal 224 has a predetermined thickness, but has a thickness not exceeding the depth of the groove formed in the second groove 214a.

The spring washer 230 is installed between the first ring terminal 222 and the second ring terminal 224, and holds the first ring terminal 222 upward and the second ring terminal 224 downward. Each one is rugged, and the electrical connection with the wire can be stably achieved. The spring washer 230 is formed in a ring shape and is bent by a predetermined height in the vertical direction along the circumferential direction to support the first and second ring terminals 222 and 224.

The slip ring 200 is fixedly held by a plurality of bolts 3 engaged with the lower surface of the housing 201 via the geared motor 100 to be fixed to the geared motor 100.

The slip ring 200 is rotated at the same speed as the support part 300 while the rotor 210 is rotated in the state in which the rotor 210 is electrically connected to the upper surface of the ring terminal 220 through the contact as the motor shaft rotates. Therefore, the wire can be rotated without twisting without the relative rotation between the rotor 210 and the support portion 300.

The boss 30 is provided to prevent height adjustment of the support part 300 and lifting of the bearing part 400 inserted into the outer circumferential surface of the housing 201, and a plurality of holes 32 are opened on the upper surface of the boss 30. The wire drawn out from the slip ring 200 is connected to the fan 510 via this to supply power.

The bearing part 400 is inserted into the outer circumferential surface of the boss 30, and a plurality of bearing parts 400 are provided along the longitudinal direction of the boss 30. The bearing unit 400 is fixed to the ground member 10, the slip ring 200 is rotated is made to prevent the relative rotation is generated by the fixing member 10 and the slip ring 200 It is installed to promote stable rotation. The bearing part 400 is provided with a ball bearing, but is not necessarily limited thereto.

Flange 20 is provided on the upper portion of the boss 30, a bolt (not shown) provided separately to the upper surface of the geared motor 100 via the support 300, the flange 20 and the housing 201. Combined. As a result, stable fixing of the housing 201 in which the slip ring 200 is seated in the fixing member 10 is achieved.

A control unit according to an embodiment of the present invention will be described with reference to the drawings.

5 to 6, the controller 700 detects a weather state around the disaster prevention fan 1 to adjust the rotation speed per minute of the fan 510 and the tilting angle of the support part 300. It is installed on the lower side of the fixing member (10).

More specifically, the communication unit 710 that can receive the weather data for the area where the disaster prevention fan (1) is installed in a wired or wireless manner, and the wind speed sensor (702) for detecting the wind speed around the disaster prevention fan (1) And a temperature sensor 704 for sensing the temperature. For example, when the wind speed and temperature detected by the wind speed sensor 702 and the temperature sensor 704 are less than or equal to the reference value based on the weather information input through the communication unit 710, the number of revolutions per minute of the fan 510 is reduced. When the wind speed and the temperature detected by the wind speed sensor 702 and the temperature sensor 704 are greater than or equal to the reference value, the speed of the fan 510 is controlled to decrease.

The communication unit 710 may be any one of a wired communication unit, a mobile communication unit such as WCDMA, HSPA, CDMA, and GSM, or a short-range communication unit such as Zigbee, Bluetooth, or infrared ray.

The controller 700 receives the wind speed and temperature data and the information on the weather data, and outputs a warning sound to output a warning sound when it is determined that a sudden wind speed and temperature change or a typhoon, a gust or an emergency is equivalent thereto. It includes.

In addition, the control unit 700 may send a warning message to the manager terminal 730 held by the person in charge or manager in charge of the cultivation area (A) or attempt a call through a forced connection with the manager terminal 730, When a contact connection is made with the manager, the information on the data in the current state can be controlled to be implemented through voice and video.

Disaster prevention fan 1 may be installed in the cultivation area (A), respectively, and may further include an integrated controller (not shown) for integrally controlling each control unit 700 provided in the disaster prevention fan (1). The integrated controller may arbitrarily control the operating state and the tilting state of the disaster prevention fan 1 individually controlled by the controller 700.

The control unit 700 receives wind speed and temperature data and weather data to control the operating state of the fan 510 for efficient operation of the disaster prevention fan 1, and through this, the frostbite of crops grown in the cultivation area A is controlled. Can be prevented.

A tilting unit according to an embodiment of the present invention will be described with reference to the drawings.

For reference, Figure 7 is a view showing a tilting unit provided in the disaster prevention fan according to an embodiment of the present invention.

Referring to FIG. 7, the tilting unit 600 includes a tilt motor 602 installed on the main body 310, and a worm wheel 604 connected to a motor shaft provided in the tilt motor 602. do. The worm wheel 604 has a motor shaft coupled to the insertion shaft formed with a female thread therein for easy coupling with the motor shaft, the shaft 606 is provided in the horizontal direction inside the main body 310, the shaft 606 The worm gear 608 is meshed with the worm wheel 604 is provided. Both ends of the shaft 606 are fixed to the side plate 324 of the main body 310, and the worm gear 608 is rotated according to the rotation direction and the amount of rotation of the worm wheel 604, and the whole side plate 324 is tilted upward and downward. Let's do it. For reference, the shaft 606 is provided with bearings on both sides of the worm gear 608.

The configuration of the disaster prevention fan according to another embodiment of the present invention will be described with reference to the drawings.

8 to 9, the disaster prevention fan 1 may perform tilting in the up and down directions of the fan unit 500 in a manual manner rather than in an automatic manner. The support shaft 313 for coupling with the fan support 320 and the slot hole 315b of the long hole respectively opened in the longitudinal direction on both the left and right sides of the side plate 312. And a moving shaft 315 coupled thereto. The moving shaft 315 is coupled to both ends at the outside of the slot hole 315b and made relatively larger than the diameter of the slot hole 315b and fixing the moving shaft 315 at a specific position of the slot hole 315b. Fixing nut (315a) for. The support shaft 313 extends through the side plates 312 and 324 and may be selectively fixed by the fixing nut 313a. The fixing nut 313a may be fixed according to the tilting state of the fan support part 320. The fixed state of the temporary release may be in close contact with the outer circumferential surface of the side plate 324, the tilting angle of the pan support 320 is changed in accordance with the movement of the movable shaft 315 coupled with the fixing nut (315a) Can be.

The disaster prevention fan 1 includes a fan 510 provided at an upper portion of the fixing member 10, and a control unit 700 for controlling an operation state of the disaster prevention fan 1. The geared motor 100 is embedded. And a slip ring 200, a boss 30 seated on an upper portion of the slip ring 200, a bearing portion 400 inserted into an outer circumferential surface of the boss 30, and an upper portion of the boss 30. Since the rest of the components are also the same, including the flange 20 is seated and the detailed description is omitted.

An operating state of the disaster prevention fan according to an embodiment of the present invention configured as described above will be described with reference to the drawings.

10 to 11, the disaster prevention fan 1 may be installed at a corner position in order to stably blow the cultivation area A having a predetermined area, but is not necessarily limited thereto. .

The control unit 700 receives weather data through the communication unit 710, wind speed and temperature data around the cultivation area A and information on weather data through the wind speed sensor 702 and the temperature sensor 704. Get input.

The control unit 700 compares the detected weather data with the set value set as a reference value according to the information on the wind speed and temperature data, and if the detected wind speed and temperature data is less than the preset temperature set value and the wind speed set value, the present cultivation area. (A) The geared motor 100, the tilt motor 602, and the fan motor 520 to judge that the wind speed and temperature of the surroundings are relatively lower than the wind speed and temperature set as reference values and to prevent frostbite of crops. Sends a control signal to

The geared motor 100 is set to rotate once every three minutes, but the rotational speed is controlled to remove the dew on the crop, and the tilt motor 602 is controlled to increase the rotational speed in the forward and reverse directions. The rotation per minute of the fan motor 520 is also controlled to increase. The tilt motor 602 rotates the worm wheel 604 to provide rotational force to the engaged worm gear 608 and the whole side plate 324 may be tilted in the vertical direction by the rotation of the shaft 606.

When the geared motor 100 is operated, the first rotor 212 connected to the motor shaft is rotated at a predetermined speed, and the second rotor 214 is supplied with three-phase power to the wire w while the fixed state is maintained. Stable power supply for the operation of the (520).

The spring washer 230 (see FIG. 3) holds the first ring terminal 222 (see FIG. 3) upward while the first rotor 212 (see FIG. 3) is rotated, and the second ring terminal ( 224 (see FIG. 3) is tethered downward to form a stable electrical connection.

The control unit 700 preferentially transmits the data sensed through the communication unit 710 and the wind speed and temperature sensor 702, 704 to the manager terminal 730 in a text message, and waits for an additional control command from the manager. . If no additional control command is input after a predetermined time elapses from the administrator, the telephone manager tries to forcibly dial the administrator. If the telephone connection is not made, a warning signal is output by transmitting a control signal to the warning sound output unit 720.

After the control unit 700 controls the disaster prevention fan 1 in the above-described state, the control unit 700 surrounds the cultivation area A through the communication unit 710, the wind speed sensor 702, and the temperature sensor 704. Wind speed and temperature data and the information on the weather data is input in real time, and if it is similar to or equal to the preset value, the geared motor 100, the tilt motor 602, and the fan motor ( The operating state of the 520 is controlled.

The control unit 700 receives wind speed and temperature data around the cultivation area A through the wind speed sensor 702 and the temperature sensor 704, and when the wind speed and temperature are higher than a reference value, It is judged that the wind speed is blowing stronger than the reference wind speed, and the temperature is judged to be relatively hotter than the reference temperature, so that it is unlikely that frostbite is likely to occur in the crop. The control signal is transmitted to reduce the revolutions per minute of the geared motor 100, the tilt motor 602, and the fan motor 520. In the above state, the control unit 700 does not transmit a separate control signal through the manager terminal 730 or transmit a control signal to the warning sound output unit 720, and the communication unit 710 and the wind speed and temperature detection sensors 702 and 704. Wait only for continuous data input through.

The control unit 700 may control the tilting state of the disaster prevention fan 1 through the tilting unit 600, and blows the wind from the fan 510 toward the ground according to the tilting state of the disaster prevention fan 1. The area is changed or spread.

When it is determined that the sudden wind speed and temperature change have been made, the controller 700 transmits the forward (clockwise) and reverse (counterclockwise) control signals to the tilt motor 602 to rotate the worm wheel 604. The worm gear 608 meshed with the worm wheel 604 has a predetermined period T in the forward or reverse direction together with the shaft 606, and the entire supporting portion 300 is N-times in N minutes. Tilt with

The supporting part 300 rotates the shaft 606 and the fixed side plate 324 according to the rotation state of the worm gear 608 in the forward or reverse direction to operate in the state shown in the drawing.

The support part 300 is stably rotated while making a relative rotation with the fixing member 10 fixed to the ground through the bearing part 400 when rotated 360 ° based on the fixing member 10, and the fan 510. The wire is not twisted or entangled through the slip ring 200 that supplies power.

Therefore, it is easy to blow all the crops cultivated in the cultivation area (A), it is possible to remove immediately if the dew condensation.

An operational state of the disaster prevention fan according to another embodiment of the present invention will be described with reference to the drawings.

Referring to FIG. 9, the operator may fix the fixing nut 313a coupled to the support shaft 313 and the fixing nut 315a fixing the movable shaft 315 for tilting the fan support 320. ) After temporarily releasing the fixed state and tilting the support shaft 313 to the position to move the fan support 320 to the rotation center, the support shaft 313 of the solid line along the slot hole 315b. Is moved in one direction of the dotted line.

When the fixing nuts 315a and 313a coupled to the moving shaft 315 and the support shaft 313 are rotated in a fixed direction, the pan support 320 is completely tilted. When the operator wants to change the tilting angle of the fan support 320 to another angle, the fan support is moved to the position to be changed after temporarily releasing the fixing state of the fixing nuts 315a and 313a by the method described above. The fixing nuts 315a and 313a may be fixed while the 320 is moved.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit of the invention as set forth in the appended claims. The present invention can be variously modified and changed by those skilled in the art, and it is also within the scope of the present invention.

1: disaster prevention fan
20: fixing member
100: geared motor
200: slip ring
300: support
310:
400: bearing part
500: pan section
600: tilting part
700:

Claims (7)

A fixed member having a predetermined length and installed upright on the ground, and having a geared motor seated inside the upper end thereof;
A rotor disposed above the geared motor, a ring terminal formed of different diameters and facing each other in concentric circles within the rotor, and a spring in which a predetermined tension is maintained in a vertical direction between the ring terminals. A slip ring comprising a washer;
A support portion provided on an upper end of the fixing member and including a main body rotated by the geared motor;
A bearing part disposed between the slip ring and the support part;
A fan part mounted on an upper part of the support part, the fan part including a fan for generating wind by receiving power through the slip ring and a fan motor for providing rotational force to the fan; And
Disaster prevention fan is provided in the support portion, including a tilting portion to move the support portion in the vertical direction to enable the wind generated in the fan to spread to the ground. The method according to claim 1,
The rotor is,
A first rotor formed in a disk shape and having a first groove portion into which a ring terminal is inserted toward a lower surface, and receiving rotational force generated from a geared motor;
And a second rotor fixed to the lower portion of the first rotor and provided with a second groove portion into which the ring terminal is inserted. The method according to claim 1, wherein
The ring terminal,
A first ring terminal inserted into the first groove and electrically connected to a plurality of wires for supplying power to the fan motor;
And a second ring terminal inserted into the second groove and provided to supply power to a wire connected to the first ring terminal. The method according to claim 1,
The spring washer,
Disaster prevention fan made of a ring shape and bent in the vertical direction along the circumferential direction. The method according to claim 1,
The tilting unit,
A disaster prevention fan comprising a motor installed in the main body, a worm wheel connected to a motor shaft provided in the motor, and a worm gear provided in a shaft disposed in a horizontal direction inside the main body and engaged with the worm wheel. The method according to claim 1,
The disaster prevention fan,
And a control unit for detecting a weather state around the fixing member to adjust the rotation speed of the fan and the tilting angle of the support unit. The method according to claim 1,
The control unit,
It includes a wind speed sensor for detecting the wind speed around the disaster prevention fan, and a temperature sensor for sensing the temperature,
When the wind speed and temperature detected by the wind speed sensor and the temperature sensor is less than the reference value, the rotation per minute of the fan is controlled to increase, and when the wind speed and temperature detected by the wind speed sensor and the temperature sensor is above the reference value Disaster prevention fan characterized in that the control to reduce the number of revolutions of the fan.

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