KR20200033101A - Dryer and method for controlling dryer - Google Patents

Abstract

Provided are a dryer which enables the position and shape of an air outlet to be a set position and shape when a wind direction mode is changed, and a method for controlling the dryer. To this end, the dryer according to the present invention comprises: a hollow casing having a blower fan and a heater embedded therein; a discharge tube rotatably installed in front of the casing, and having an air inlet through which air blown by the blower fan flows in and an air outlet through which the flowing air is discharged to the outside; a motor having a rotary shaft connected to the discharge tube to rotate the discharge tube; a memory unit in which a plurality of target step numbers for moving the air outlet to an original position among step numbers of the motor are stored at intervals of a predetermined step number; and a control unit for driving the motor by controlling the step numbers of the motor when a driving command of the motor is input. The control unit corrects a current step number with a step number obtained by adding the predetermined step number to the current step number of the motor when a stop command of the motor is input, and then drives the motor with a target step number located next to the corrected current step number in a rotation direction of the rotary shaft of the motor among the plurality of target step numbers stored in the memory unit when the corrected current step number is smaller than a step number for rotating the rotary shaft of the motor by one.

Description

Dryer and control method of dryer {DRYER AND METHOD FOR CONTROLLING DRYER}

The present invention relates to a dryer and a control method of a dryer, and more particularly, to a dryer and a control method of a dryer capable of adjusting a range of air discharged to the outside.

The dryer for drying the human body should not be damaged by the drying air when used, and the temperature of the drying air should be maintained to the extent that the user feels comfortable, whereas drying should be completed as quickly as possible. In addition, noise caused by air flow should be reduced, and it should be designed so that the user can easily use the dryer.

Therefore, it is necessary to design the dryer in consideration of the overall size and shape of the dry ear, the heating temperature of the drying air, the discharge amount and discharge speed, and the size of the discharge port, as well as the constitution characteristics of the object to be dried. .

On the other hand, if the object to be dried is an infant or a companion animal, communication with the infant or companion animal is difficult even when pain is caused, so the drying air is dried so that drying suitable for each constitutional characteristic can be carried out. It is preferable that the temperature and the discharge rate are automatically adjusted and designed to allow the infant or companion animal to enjoy the drying process while being curious while drying is performed.

Republic of Korea Registered Patent Publication No. 10-1837811 (2018.03.13.) (Hereinafter referred to as' prior art '), a flap, and a flap driving motor for rotating the flap, installed in the nozzle' automatic automatic wind direction adjustment device Separated Hair Dryer Nozzle '.

In the prior art, the flap driving motor is driven to adjust the angle of the flap, thereby controlling the direction of air discharged to the outside through the nozzle.

In the prior art, when a user operates a switch and power is applied to the flap driving motor, the flap driving motor is driven to change the angle of the flap to change the wind direction discharged to the outside of the nozzle, and the user switches the switch. When power is not applied to the flap driving motor by operating the method, the flap driving motor is immediately stopped, and the angle of the flap is fixed so that the wind direction discharged to the outside of the nozzle is fixed. It is not set accordingly, and it is a method of adjusting the angle of the flap at any time as desired by the user.

Therefore, the prior art has a problem in that the angle of the flap must be adjusted while carefully observing the position of the flap in order to position the flap to a desired position.

In order to solve the above problems, the angle of the flap may be set according to the wind direction mode. In this case, when the flap drive motor is driven in the first wind direction mode and the flap drive motor is being driven, the user can change to the second wind direction mode when the angle of the flap is in the impending position in the second wind direction mode. When the angle of the flap exceeds the angle set in the second wind direction mode due to the inertia force of the rotating shaft of the flap drive motor, the position and shape of the air outlet formed by the flap is set in the second wind direction mode. There is a problem that the position and shape are not.

The problem to be solved by the present invention is to provide a dryer and a control method of a dryer that can set the position and shape of the air outlet when the wind direction mode is changed to a set position and shape.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

The dryer according to the present invention, a hollow casing with a built-in blower fan and a heater, is rotatably installed in front of the casing and discharges air and an inlet through which air blown by the blower fan flows in and out. A discharge tube having an air discharge port to be formed, a motor having a rotating shaft connected to the discharge tube to rotate the discharge tube, and a plurality of target step numbers for moving the air discharge port to the home position among the number of steps of the motor is a predetermined step number interval And a control unit for controlling the number of steps of the motor to drive the motor when a drive command of the motor is input, and the control unit when the stop command of the motor is input, the current number of steps of the motor. After correcting the current number of steps with the number of steps summing the predetermined number of steps, the corrected number of current steps is If the number of steps for rotating one axis of rotation is smaller than the number of target steps stored in the memory unit, the motor is set to the target step number located after the corrected current step number in the rotation direction of the rotation axis of the motor. Drive.

If the corrected current step number is greater than or equal to the number of steps for rotating the motor one time, the control unit is the corrected current by the number of steps subtracted from the corrected current step number by the number of steps for rotating the rotation axis of the motor one rotation. After re-correcting the number of steps, the motor may be driven with a target number of steps located next to the re-corrected current step number in the rotational direction of the rotation axis of the motor among the plurality of target steps stored in the memory unit.

The air discharge port may be returned to a plurality of times when the discharge tube is rotated once.

The air discharge port is formed in a rectangular shape, and the discharge tube may be returned to its original position every 180 degrees rotation.

A protrusion protruding in the radial direction may be formed outside the discharge tube, and a groove may be formed in the casing so that the protrusion is movable.

The groove may be formed in a cylindrical guider installed in the casing.

The cylindrical guider may be formed by combining a plurality of guider pieces.

The groove may form a closed curve such that when the discharge tube is rotated, the protrusion is rotated along the groove.

The groove may be formed by alternating forward and reverse waveforms.

The groove may be formed of a sinusoidal wave.

The protrusion may include a pair of protrusions spaced 180 degrees apart in the rotation direction of the discharge tube.

The wave formed by the groove may be a wave formed symmetrically to each other in the forward and reverse directions based on the center reference line at a region where the phase angle is spaced apart by 180 degrees.

The motor may further include a connector that is orthogonally connected to the rotation axis of the motor, and at least one end of the connector may be connected to the discharge tube.

A pair of recess portions spaced apart at 180 degree intervals in the rotation direction of the discharge tube may be formed in the discharge tube, and both ends of the connector may be inserted into the groove portion.

The virtual straight line connecting the pair of protrusions and the virtual straight line connecting the pair of recesses may be orthogonal to each other.

A stopper covering at least a portion of the groove portion is fastened to the discharge tube, and the stopper can prevent both ends of the connector from being separated from the groove portion.

The control method of the dryer according to the present invention includes a hollow casing in which a blower fan and a heater are built in, and an air inlet and an inlet air through which the air blown by the blower fan is rotatably installed in front of the casing. A discharge tube having an air discharge port for discharging to the outside, a motor having a rotating shaft connected to the discharge tube to rotate the discharge tube, and a plurality of target step numbers for moving the air discharge port to the original position among a number of steps of the motor In the control method of a dryer including a memory unit stored in step number intervals, when the drive command of the motor is input, controlling the number of steps of the motor to drive the motor, and when the stop command of the motor is input, the motor Correcting the current step number by the number of steps obtained by adding the predetermined step number to the current step number of the step; If the current step number modified in the step of correcting the current step number is smaller than the number of steps for rotating the motor one, among the plurality of target step numbers stored in the memory unit, the modified current in the rotation direction of the rotation axis of the motor And driving the motor with a target number of steps located after the number of steps.

In a dryer and a control method of a dryer according to the present invention, when a plurality of target steps are stored in a memory unit at predetermined step number intervals and a stop command of a motor is input, the current step number of the motor is added to the predetermined step number. After correcting the current step number by the number of steps, if the corrected current step number is less than the number of steps for rotating the rotation axis of the motor, among the plurality of target steps stored in the memory unit, of the rotation axis of the motor The motor is driven in the rotation direction with the target step number located after the corrected current step number. Therefore, even if the motor stop command is input when the air outlet of the discharge tube is close to the original position, the air outlet can be accurately positioned at the original position.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a view showing a dry apparatus according to an embodiment of the present invention,
Figure 2 is a perspective view of the dryer shown in Figure 1,
Figure 3 is a longitudinal sectional view of the dryer shown in Figure 2,
4A to 4D are exploded perspective views of the dryer shown in FIG. 2,
FIG. 5 is a perspective view of a part of the casing of the dryer shown in FIG. 2 cut away;
FIG. 6 is a cut-away perspective view showing the internal structure of the dryer shown in FIG. 2;
Figure 7 is a perspective view showing the blowing fan shown in Figure 6,
Figure 8 is an exploded perspective view showing the blowing fan shown in Figure 7,
9 is a view showing a blade root on each of the hub of the first fan and the second fan shown in FIG. 8,
10 is an exploded perspective view of the rear surface of the discharge tube and the motor shown in FIG. 4A,
11 is a developed view of the inner surface of the cylindrical guider shown in FIG. 4A,
12 is a view showing the rotation process of the discharge tube according to the phase angle of the groove shown in FIG. 11,
13 is a control block diagram of a dryer according to an embodiment of the present invention,
14 is a view showing the number of control steps of the motor according to the rotation angle of the discharge tube,
15 is a flow chart according to a control method of a dryer according to an embodiment of the present invention,
16 is a view showing a state in which the operation information of the dryer is displayed on the display panel shown in Figure 4c,
Figure 17 is a side view of the dryer shown in Figure 2,
18 is a side cross-sectional view showing the cradle shown in FIG. 1,
19 is a side cross-sectional view of a state in which the dryer is mounted on a cradle as shown in FIG. 1.

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

Referring to FIG. 1, a dry apparatus according to an embodiment of the present invention may include a dryer 1 and a cradle 100 on which the dryer 1 is mounted. A seating portion 140 may be provided at an upper end of the cradle 100. As the grip 90 of the dryer 1 (see FIG. 2) is inserted into the seating portion 140, the dryer 1 may be mounted on the cradle 100.

Without the user having to grip the dryer 1, the dryer 1 can be operated with the grip 90 mounted on the cradle 100. The user can dry his hair or dry his / her pet's hair by using the air discharged from the dryer 1 while the dryer 1 is mounted on the holder 100.

The holder 100 is adjusted in height and angle to suit the size of the object to be dried, so that the air discharge height and air discharge direction of the dryer 1 mounted on the holder 100 can be adjusted.

A blower fan 20 (refer to FIG. 3) and a heater (refer to FIG. 3) may be provided inside the dryer 1. The dryer 1 may suck air from the outside to the inside by driving the blowing fan 20 and discharge the air sucked into the front. The heater H can heat the air sucked into the interior of the dryer 1. When the blower fan 20 and the heater H are operated, the dryer 1 may discharge air heated by the heater H from the inside of the dryer 1 to the front.

The grip 90 may be formed to protrude to one side of the dryer 1. The grip 90 may be formed to protrude from the circumference of the dryer 1 to one side. The grip 90 may have a circular circumference. When the circumference of the grip 90 is formed in a circular shape, the grip feeling may be better than when the circumference of the grip 90 is formed in a square shape.

A hollow portion 140A, 140B (see FIG. 18) into which the grip 90 is inserted may be formed on the upper surface of the seating portion 140. The hollow portions 140A and 140B may have a shape corresponding to the grip 90. The hollow portion 140A or 140B may have a circular circumference.

The first permanent magnet 932 (see FIG. 19) may be disposed on the grip 90, and the second permanent magnet 145 may be disposed on the hollow portions 140A and 140B corresponding to the first permanent magnet 932. Can be deployed. The second permanent magnet 145 can pull the first permanent magnet 932 when the grip 90 is inserted into the hollow portions 140A and 140B to position the grip 90 in the correct position of the seat 140. have.

Therefore, the user does not need to carefully observe the position where the grip 90 is inserted into the hollow portions 140A and 140B, and when the grip 90 is inserted into the hollow portions 140A and 140B, the first permanent magnet 932 ) And the attraction force of the second permanent magnet 145, the grip 90 is located at the correct position of the seating portions 140A and 140B, so that air discharged from the dryer 1 is discharged in the direction intended by the user. You can.

In addition, since the grip 90 is inserted into the hollow portions 140A and 140B, the position of the grip 90 is fixed by the attraction force of the first permanent magnet 932 and the second permanent magnet 145, Even if the angle is adjusted by tilting the seat 140, the air discharge direction of the dryer 1 may not be disturbed.

In particular, in the dry apparatus according to the embodiment of the present invention, since the circumference of the grip 90 is formed in a circular shape, and the circumference of the hollow portions 140A and 140B is also formed in a circular shape, the grip 90 has a hollow portion 140A , 140B), it is easily rotated by the external impact of the grip 90, so that the air discharge direction of the dryer 1 may be disturbed, but in this embodiment, the grip 90 When the first permanent magnet 932 is provided, and the grip portion 90 is inserted into the hollow portions 140A and 140B in the hollow portions 140A and 140B, the first permanent magnet 932 is pulled to pull the grip 90 Since the second permanent magnet 145 for fixing the position of) is provided, this problem can be solved.

If the air discharge direction of the dryer 1 is defined as forward, the seating portion 140 may be tiltable in the front-rear direction. The user inserts the grip 90 of the dryer 1 into the hollow portions 140A and 140B of the seating portion 140, and in the state where the dryer 1 is mounted on the cradle 100, the seating portion 140 is mounted. The front of the dryer 1 may be directed downward by tilting forward, and the front of the dryer 1 may be upward by tilting the seat 140 rearward. That is, the user can adjust the angle of the air discharged by the dryer 1 in the vertical direction by tilting the seat 140 in the front-rear direction.

The first permanent magnet 932 may be disposed on the lower surface of the grip 90, and the second permanent magnet 145 may be disposed on the bottom surface of the hollow portions 140A and 140B.

The lower surface of the grip 90 may be formed convexly, and the bottom surface of the hollow portions 140A and 140B may be formed concavely so that the lower surface of the grip 90 is inserted.

The first permanent magnet 932 may be provided as a plurality of first permanent magnets 932. The plurality of first permanent magnets 932 may be disposed spaced apart from each other in the circumferential direction of the grip 90. The plurality of first permanent magnets 932 may be disposed at intervals of 90 degrees along the circumferential direction of the grip 90, and four may be disposed along the circumferential direction of the grip 90. The plurality of second permanent magnets 145 are disposed at 120-degree intervals along the circumferential direction of the grip 90, and three may be arranged along the circumferential direction of the grip 90. The plurality of second permanent magnets 145 may be disposed at intervals of 180 degrees along the circumferential direction of the grip 90, and two may be disposed along the circumferential direction of the grip 90.

The second permanent magnet 145 may be provided with a plurality of second permanent magnets 145. The plurality of second permanent magnets 145 may be disposed spaced apart from each other in the circumferential direction of the hollow portions 140A and 140B. The plurality of second permanent magnets 145 may be disposed at positions corresponding to the plurality of first permanent magnets 932, respectively, and may be formed in a number corresponding to the plurality of first permanent magnets 932.

2, 3 and 4A, the dryer 1 includes a hollow casing 10, a blowing fan 20 for introducing and sending outside air into the casing 10, and a blowing fan 20 ) May be installed downstream and may include a heater H for heating air.

A discharge tube 30 may be rotatably installed downstream of the heater H, and an air inlet 33 through which heated air flows may be formed at a rear portion of the discharge tube 30, and the discharge tube An air discharge port 34 for discharging the introduced air to the outside may be formed at the front portion of the 30, and a motor 40 for rotating the discharge tube 30 may be installed.

In addition, the dryer 1 may include a lighting device 70 for irradiating light toward the front of the dryer 1, and a display device 80 capable of displaying or inputting operation information of the dryer 1 It may include, it may include a grip 90 extending in the downward direction from the casing (10).

In addition, the dryer 1 includes an external temperature sensor S1 that detects the body temperature of the object to be dried or the temperature of the part being dried, and an air temperature sensor that senses the temperature of air heated in the casing 10 ( S2), and may include a controller 98 that controls the operation of the dryer 1.

Hereinafter, the components of the dryer according to the embodiment of the present invention will be described in more detail.

2, 3, 4A and 4C, the casing 10 includes a casing body 11 in which the upper casing 11a and the lower casing 11b are integrally combined to form a cylindrical tube, and A plurality of through holes 141 connected to the rear of the casing body 11 and through which air flows in may include a cylindrical cap 14 formed along the periphery of the first fan 21.

In the embodiment of the present invention, the casing body 11 and the cylindrical cap 14 are separately manufactured and then combined to be integral with each other, but the casing bodies 11a, 11b and the cylindrical cap 14 May be integrally manufactured from scratch.

A rear cover 15 in which a plurality of air inlets 150 are formed is disposed at the rear of the cylindrical cap 14, and the rear cover 15 is inserted into and coupled to an opening formed at the rear of the cylindrical cap 14 Or, a ring 16 having a plurality of air inlets 161 formed between the opening edge of the cylindrical cap 14 and the edge of the rear cover 15 is inserted into the cylindrical cap 14 and the rear cover. 15 and ring 16 may be combined to be integral.

'Combination' described above or later means that the two components are integrally combined or assembled by a known bonding method such as fusion, adhesion, forced insertion, screwing, bolting, or keying.

4C, 6 and 7, the blowing fan 20 may be accommodated inside the casing 10. Preferably, the blowing fan 20 may be installed inside the rear portion of the casing 10.

The blowing fan 20 includes a first fan 21 and a second fan 22 disposed on the downstream side of the first fan 21 in the air flow direction. When defining a predetermined imaginary axis extending in the front-rear direction, the first fan 21 and the second fan 22 rotate around the virtual axis, while rotating in opposite directions to the rear air Is sent forward. That is, the rotation direction of the first fan 21 and the second fan 22 is opposite, but the direction in which air flow is transmitted is the same as the front.

The first fan 21 and the second fan 22 may be axial fans, respectively, in this case, each fan 21 and 22 is a rotating shaft rotated by a motor, as shown in FIG. 8. It includes a hub (211, 221) and a plurality of blades (212, 222) arranged in the circumferential direction on the outer peripheral surface of the hub (211, 221).

Hereinafter, a portion in which the hubs 211 and 221 and the blades 212 and 222 are connected to each fan 21 and 22 is defined as a blade root or a root. (See Fig. 9) The first blade root BR1 defined by the first hub 211 and the first blade 212 in the first fan 21 has a first direction (+) with respect to the virtual axis Z. ρ). In addition, the second blade root BR2 defined by the second hub 221 and the second blade 222 in the second fan 22 has a second direction (−ρ, that is, with respect to the virtual axis Z). It is inclined in the first direction (+ ρ).

Since the first blade 211 and the second blade 221 are inclined in the opposite direction with respect to the virtual axis Z, the first fan 21 and the second fan 22 are rotated in opposite directions. Both fans 21, 22 send airflow in the same direction (+ Z).

The air flow sent by the first fan 21 has a circumferential component of velocity in the rotational direction of the first fan 21. The circumferential velocity component not only decreases the linearity of the airflow, but also causes vortex formation and disturbs the flow, which causes the efficiency or performance of the fan to deteriorate.

In the present invention, since the circumferential speed component decreases as the air flow from the first fan 21 passes through the second fan 22, which is counter-rotated, as a result, it is transmitted from the second fan 22. The straightness of the airflow is enhanced.

Meanwhile, the second fan 22 may include a larger number of blades than the first fan 21. Preferably, the second fan 22 includes six second blades 222, and the first fan 21 includes five first blades 212, but the number of blades must be limited thereto. It is not done.

The hub radius of the first fan 21 and the tip radius (distance from the center (O) of the fan to the tip of the blades 212 and 222 (the point farthest from the hub)) is the second fan ( The hub radius Rh and the tip radius Rt of 22) may be respectively the same.

As the number of blades increases, it seems that more wind can be blown, but the air volume tends to decrease because the drag force and friction force that air receives from the blades also increases. However, if the number of blades is large, soft air is discharged because air is blown out finely by the blades. Conversely, when the number of blades is small, stronger wind can be generated under the same conditions.

In an embodiment of the present invention, the first fan 21 having a relatively small number of blades is disposed on the upstream side to increase the suction force, and the second fan 22 has a larger number of blades than the first fan 22 ) Was placed on the downstream side so that soft wind was discharged. In particular, since the strong wind sent by the first fan 21 is sucked into the second fan 22, as a result, the wind sent by the second fan 22 has strong and soft properties.

A first fan motor 24 for operating the first fan 21 and a second fan motor 25 for rotating the second fan 22 may be provided. The first fan motor 24 and the second fan motor 25 are disposed between the first fan 21 and the second fan 22, so that the second fan 22 is positioned in front of the first fan 21. Can be located at

The rotation axis 241 of the first fan motor 24 may extend from front to rear along a virtual axis (or coaxial Z) to be connected to the first hub 211 of the first fan 21. Similarly, the rotation axis 251 of the second fan motor 25 extends from the rear to the front along the virtual axis Z to be connected to the hub 221 of the second fan 22.

That is, in the embodiment, the first fan 21 and the second fan 22 are rotated around a common virtual axis Z, but rotating shafts of different fan motors arranged on the virtual axis , 241, 251). Accordingly, when the first fan motor 24 and the second fan motor 25 are independently controlled by the control of the respective fan motors 24 and 25 by the control unit 98, the first fan 21 And the driving aspect of the second fan 22.

For example, the control unit 98 may control the first fan motor 24 and the second fan motor 25 to be selectively operated. In this case, only the first fan motor 24 may be operated, only the second fan motor 25 may be operated, or the first fan motor 24 and the second fan motor 25 may be operated together.

At least one of the first fan motor 24 and the second fan motor 25 may be a motor capable of speed control. For example, it may be a BLDC motor (Brushless Direct Current motor).

Meanwhile, depending on the embodiment, it is also possible that the first fan 21 and the second fan 22 are rotated opposite to each other by one motor. For example, a rotating shaft of a motor is fitted, a hollow shaft is rotated in a direction opposite to the rotating shaft by a gear train, a first fan 21 is connected to the rotating shaft, and the hollow shaft is made of 2 fans 22 may be connected.

In addition, the first fan 21 is disposed inside the cylindrical cap 14 to rotate the through hole 141 formed in the cylindrical cap 14, the through hole 151 formed in the rear cover 15, and the ring 16 It may be designed to mainly perform a function of allowing external air to flow into the casing 10 through the through holes 161 formed therein.

The second fan 22 is disposed downstream of the first fan, and transmits external air introduced by the first fan 21 toward the front side of the casing 10, that is, in the direction of the discharge tube 30 It can be designed to perform functions primarily.

When the first fan 21 and the second fan 22 are manufactured to mainly perform functions as an air inlet fan and an air outlet fan, the air flow noise is reduced and the noise is reduced while the air inflow amount and the blowing amount are increased. The dryer can be operated.

In addition, by operating only one of the first fan 21 and the second fan 22, it is possible to adjust the amount of drying air discharged from the dryer to be reduced.

By rotating the first fan 21 and the second fan 22 such that the rotational directions of the first fan 21 and the second fan 22 are opposite to each other, it is possible to further improve air inflow and outgoing efficiency.

Meanwhile, between the first and second fans 21 and 22, a fan mount 27 for fixing the first fan motor 24 and the second fan motor 24 in the casing 10 may be installed. The fan mount 27 includes a motor housing 270 in which the first fan motor 24 and the second fan motor 25 are accommodated, and a fixed rod 26 protruding radially outward from the motor housing 270. can do. The fixed rod 26 may be fixed to the inner side of the inner sleeve 50, the end portion 261 of which will be described later. A plurality of fixing rods 26 may be formed.

The motor housing 270 may include a housing body 271 having an open front surface and a housing cover 272 covering an open front surface of the housing body 271. The housing body 271 may include a cylindrical side portion 271a and a rear portion 271b formed on the rear side of the side portion 271a, through which the rotation shaft 251 of the second motor 25 passes. An axial through hole (not shown) may be formed. The first fan motor 24 and the second fan motor 25 may be accommodated in a space defined by the housing body 271 and the housing cover 272.

The housing cover 272 is detachably coupled to the housing body 271 and an axial passage hole 272h through which the rotation shaft 25a of the second fan motor 25 passes may be formed. The fixed rod 26 may protrude from the housing body 271.

The fixed rod 26 may have a “C” or “C” shape in cross section. The "c" shape may be a groove opened toward the front. In addition to improving the rigidity of the fixed rod 26, wires connected to the fan motors 24 and 25 may be embedded in the groove.

The fixed rod 26 may include a support arm 262 extending outward along the radial direction from the motor housing 270 and an end portion 261 bent forward from the support arm.

The end portion 261 is forcibly inserted into the groove formed in the inner sleeve 50 to be described later, so that the blowing fan 20 can be fixed at a predetermined position inside the casing 10.

The heater H installed downstream of the fan may be formed as a ring-shaped coil heater, and heats air sent out from the blowing fan 20. An air temperature sensor S2 may be installed downstream of the heater H, and a pair of left and right sides of the air temperature sensor S2 may be disposed in front of the heater H (FIG. 4c).

Meanwhile, referring to FIGS. 3, 4A, 5, and 6, a cylindrical inner sleeve 50 may be disposed inside the casing body 11 made of the upper and lower casings 11a and 11b, , The outer circumferential surface of the inner sleeve 50 may be coupled in close contact with the inner circumferential surface of the casing body 11.

Referring to FIG. 4A, the inner sleeve 50 is made of left and right sleeve pieces 51 and 52, and the set screw 513 is formed with a groove 514 formed in the right sleeve piece 52. By being inserted into the screw hole 519 formed in the left sleeve piece 51 and screwed, it can be assembled to be integral with each other.

In addition, referring to FIGS. 3 and 4A, the inner sleeve 50 may be located downstream (front) of the second fan 22, and a groove 515 may be formed in the rear surface 511 where the opening is formed. You can. A plurality of grooves 515 may be formed around the opening. The recess 515 may extend forward from the rear surface 511 along the inner surface of the inner sleeve 50 (ie, the surface defining the hollow).

In the groove 515, the end portion 261 of the fixed rod 26 of the above-described blowing fan 20 is forcibly inserted, so that the blowing fan 20 can be fixed at a predetermined position in the case 10 (FIG. 3). Reference).

In addition, a protrusion 516 is formed on the inner circumferential surface of the left sleeve piece 51, and a screw groove 517 is formed in the protrusion 516 so that the bolt 422 penetrates the motor mount 42, which will be described later, and the screw By being screwed to the groove 517, the motor 40, which will be described later, can be fixed in a predetermined position inside the casing 11.

3 to 6, a cylindrical guider 60 may be disposed in front of the inner sleeve 50. The cylindrical guider 60 may be formed by combining three guider pieces 61, 62, 63 with each other to form a cylindrical shape, as shown in FIG. 4A.

A groove 601 is formed on the inner surface of the cylindrical guider 60, and the protrusion 35 of the discharge tube, which will be described later, can be inserted into the groove 601 to be moved while sliding. On the other hand, the groove 601 may form a closed curve to be rotated to the projection 35 when the discharge tube 30 is rotated.

As shown in FIG. 11, the groove 601 may be formed to form a waveform when the inner circumferential surface of the guider 60 is flat. The waveform may be a sine file.

On the other hand, the cylindrical guider 60 is disposed in front of the inner sleeve 50 and combined with the inner sleeve 50, or the inner sleeve 50 is pressed inward by the inner circumferential surface of the casing body 11 and the casing ( 10) can be fixed inside.

The casing body, the inner sleeve, and the guider may be separately manufactured and combined to be integral, as in the embodiment of the present invention, but may be manufactured to be integral from the beginning, and two of them may be integrally manufactured. They may be combined with each other.

In Fig. 4A, reference numerals 518 and 605 denote cuts 518 formed in the inner sleeve and grooves 605 formed in the guider so that cables (not shown) can pass through, respectively.

Referring to FIGS. 3, 4A, 6, and 10, the discharge tube 30 may have an approximate shape in which the front side is small and the rear side is formed in a large funnel shape, and the rear portion is a cylindrical portion 31 ), The front portion is formed of a predetermined tube body portion 32, therebetween may be formed of a fallopian tube portion 39 whose longitudinal area gradually decreases toward the front.

A circular air inlet 33 may be formed inside the cylindrical portion 31 of the discharge tube, and the tube body portion 32 may be formed in a rectangular columnar shape, and rectangular air on the front side of the discharge tube 30 The discharge port 34 may be formed.

In the above, the term “rectangular” means not only a rectangle but also a shape including tracks, ovals, and the like having different sizes of orthogonal widths.

In addition, in the embodiment of the present invention, the air inlet 33 formed in the discharge tube 30 is formed in a circular shape and the air outlet 34 is formed in a rectangular shape, but is not limited thereto, and the air inlet 33 and the air outlet 34 may be modified in various shapes.

On the other hand, the air discharge port 34 of the discharge tube 30 is formed to be smaller than the air inlet port 33 so that air is concentrated from the air discharge port 34 and discharged to the outside.

A partition plate 38 may be disposed to partition the air passage formed inside the discharge tube 30 so that air is distributed and discharged.

In addition, although not shown here, the air discharge port 34 may be formed in a circular shape, or may be formed asymmetrically based on a central rotation axis (not shown) of the discharge tube 30, and the central rotation axis It may be formed eccentrically based on the line.

Referring to FIG. 10, a pair of protrusions 35 may be formed to protrude outward at a distance of 180 ㅀ from the cylindrical portion 31 of the discharge tube 30, and each of the pair of protrusions 35 may be formed. It can be inserted into the groove 601 of the cylindrical guider 60 to be slidable.

In addition, a pair of inward blocks 36 may protrude in the inner direction of the cylindrical portion 31, and a recess 37 may be formed in each inward block 36.

The pair of recesses 37 may be disposed to face each other at an angle of 180 ㅀ, and the virtual straight line connecting the pair of recesses 37 is orthogonal to the virtual line connecting the pair of protrusions 35, The pair of protrusions 35 and the pair of recesses 37 may be arranged. A connector 44 of a motor, which will be described later, may be inserted into the recess 37.

3, 4a, 6, and 8, the motor 40 for rotating the discharge tube 30 may be fixedly installed on the motor mount 42, and the motor mount 42 may have the inner sleeve 50 described above. ) May be fixed to one sleeve piece 51 among pieces 51, 52. More specifically, referring to FIG. 4A, the bolt 422 is screwed into the screw hole 517 formed in the protrusion 516 of the left sleeve piece 51 through the through hole 421 formed in the motor mount 42. By being engaged, the motor 40 can be fixed at a predetermined position inside the inner sleeve.

The power transmission device that transmits the rotational force of the motor 40 to the discharge tube 30 includes a rotating shaft 41 of the motor 40, a link block 43 connected to be fixed to the rotating shaft 41, and a rotating shaft 41. It may be disposed orthogonally and both ends 441 may include a connector 44 having a circular bar shape penetrating the link block 43 so as to protrude outward of the link block 43.

The connector 44 may be rotatably connected to the link block 43 or fixedly connected.

Both ends 441 of the connector 44 are inserted into the recess 37 of the above-described discharge tube 30, and when the motor 40 is operated, the discharge tube 30 may be rotated.

Both ends 441 of the connector 44 may be rotatably inserted into the recess 37 or may be fixedly inserted, but at least when the connector 44 is fixed to the link block 43, at least the connector ( Both ends 441 of 44) are rotatably inserted into the recess 37, so that the connector 44 and the discharge tube 30 are connected to each other so that they can rotate relative to each other based on the central axis of the connector 44. You can.

Meanwhile, both ends 441 of the connector 44 may be inserted into the recess 37 so that the discharge tube 30 is slightly movable in the front and rear directions of the connector 44.

After both ends 441 of the connector 44 are inserted into the recess 37 of the discharge tube 30, the stopper 47 can be fastened to the inward block 36 of the discharge tube 30, and more details For example, the bolt 471 is screwed into the screw hole 361 formed in the inward block 36 through the hole 472 of the stopper 47, so that the stopper 47 is fastened to the discharge tube 30 to connect the connector. The both ends 441 of the 44 can be prevented from being separated from the recess 37, so that the connector 44 and the discharge tube 30 can be prevented from being separated from each other.

The discharge tube 30 and the motor 40 are connected as described above, when the motor 40 is rotated, the connector 44 is rotated, and when the connector 44 is rotated, the discharge tube 30 is rotated. Since the pair of protrusions 35 protruding outward from the cylindrical portion 31 of the cylindrical guider 60 is inserted into the groove 601 formed on the inner circumferential surface and moved along the groove 601, the discharge tube 30 Is rotated with the connector 44 while being rotated before and after a predetermined angle based on the central axis of the connector 44.

This will be described in more detail with reference to FIGS. 11 and 12.

11 is a view in which the inner surface of the cylindrical guider 60 is developed, reference numerals 61, 62, and 63 denote first, second, and third pieces of the guider, and 601 grooves formed on the inner side of the guider, 35a, 35b Is a pair of protrusions formed on the discharge tube, the angle represents a phase angle of 360 ㅀ with 0 ㅀ as a reference point. In addition, the period of the waveform formed by the groove 601 shown in FIG. 11 is an angle of 120 ㅀ, and a waveform forming symmetry with each other in the forward and reverse directions based on the reference line L in the quantum region having a phase angle of 180 ㅀ difference. Shows.

When the motor 40 is operated, the discharge tube 30 is rotated, and the pair of protrusions 35a and 35b of the discharge tube 30 are also moved and rotated along the groove 601, and the pair of protrusions 35a, When 35b) is at the 0 ㅀ and 180 ㅀ positions of the groove 601, the position of the protrusion is located at the same height of the reference line L, so the air outlet port 34 of the discharge tube 30 is shown in FIG. It is centered in the vertical direction as in ㅀ. As the discharge tube 30 is rotated in the above position, the pair of protrusions 35a and 35b are moved in the direction of the arrow so that the pair of protrusions 35a and 35b are shifted in height to each other on the opposite side of the reference line L. Starting, when the discharge tube 30 is rotated to a position where the phase angle of the groove 601 is 30 ㅀ, the pair of protrusions 35a, 35b are positioned to face each other farthest from the reference line L, and then the groove When the discharge tube 30 is rotated to a position where the phase angle of the (601) is 60 ㅀ, it is again positioned at the reference line (L), and is no longer rotated to discharge the tube to a position where the phase angle of the groove (601) is 90 ㅀ. 30) is rotated to the farthest facing away, then the discharge tube 30 is rotated to a position where the phase angle of the groove 601 is 120 위치 when it is rotated, it is located at the reference line L, and the above motion is repeated again. .

Therefore, when the discharge tube 30 is rotated, the air discharge port 34 of the discharge tube 30 is rotated, the position is continuously changed from the rotation center toward one side, and then the position is changed again toward the other side, so that the air discharge port ( The drying air discharged from 34) is greatly diffused and discharged to the outside while the discharge angle is changed, and the drying area is greatly expanded.

On the other hand, when the motor 40 is stopped, it may be stopped after rotating the discharge tube 30 to a position where the phase angle of the groove 601 in FIG. 12 is 0 or 120 degrees. When the motor 40 is stopped, the direction of the air discharged from the air discharge port 34 does not change, and the air discharge port 34 of the discharge tube 30 is formed smaller than the air inlet port 33, so the drying air Can be intensively discharged to one place through the air discharge port 34, and when the motor 40 is operated, the air for drying is diffused while the discharge tube 30 is rotated, thereby controlling whether the motor 40 is operated or not. , If necessary, the concentrated air and the diffused air may be selected and discharged toward the drying site.

On the other hand, referring to Figure 12, when the phase angle of the groove 601 is 120 degrees, the discharge tube 30 is rotated 180 degrees, the position and shape of the air outlet port 34 is 0 degrees phase angle of the groove 601 It can be seen that it is the same as the position and shape of the air discharge port 34 at this time.

That is, the air discharge port 34 may be returned to the original position multiple times during one rotation of the discharge tube 30. In this embodiment, since the air discharge port 34 is formed in a rectangular shape, the air discharge port 34 can be returned to the discharge tube 30 every 180 degrees rotation.

Here, the original position of the air discharge port 34 may mean a position where the position and shape of the air discharge port 34 are the same as the position and shape of the air discharge port 34 when the discharge tube 30 is the initial position. .

As described above, when the motor 40 is driven, the discharge tube 30 is rotated to discharge the diffused air, and when the motor 40 is stopped, the air discharge port 34 of the discharge tube 30 is returned to the original position to discharge the concentrated air can do.

The user may drive the motor 40 by touching the motor power button 916 to be described later, and stop the motor 40 by touching it once again. That is, when the user touches the motor power button 916 once, a motor driving command may be input to the control unit 98, and the control unit 98 drives the motor 40 when the motor driving command is input, thereby discharging The tube 30 may discharge the diffused air. In addition, when the user touches the motor power button 916 once again, a motor stop command may be input to the control unit 98, and the control unit 98 may enter the air discharge port of the discharge tube 30 when the motor stop command is input. After returning (34) to the original position, the motor 40 can be stopped.

However, when the motor stop command is input to the control unit 98 immediately before the air discharge port 34 of the discharge tube 30 is returned to the original position, the air discharge port 34 is due to the inertia force of the rotating shaft 41 of the motor 40. Since it is difficult to stop the rotating shaft 41 of the motor 40 at the original position, there may be a problem that the motor 40 is stopped after the air discharge port 34 exceeds the original position.

When the motor stop command is input to the control unit 98 immediately before the air discharge port 34 is returned to the original position, the logic for stopping the motor 40 after returning the air discharge port 34 of the discharge tube 30 to the original position This will be described with reference to FIGS. 13 to 15.

Referring to FIG. 13, the dryer 1 according to an embodiment of the present invention further includes a memory unit 981. The control unit 98 includes a printed circuit board, and the memory unit 981 may be mounted on the printed circuit board.

The motor 40 may be a step motor in which the rotation angle of the rotation shaft 41 is controlled by the control unit 98.

The memory unit 981 may store a plurality of target step numbers for returning the air discharge port 34 of the discharge tube 30 to its original position. As described above with reference to FIG. 12, in the present embodiment, since the air discharge port 34 is returned every time the discharge tube 30 is rotated 180 degrees, the number of target steps for returning the air discharge port 34 is the memory unit 981. ) Can be stored in two.

Referring to FIG. 14, when the motor driving power is input, the control unit 98 may control the number of steps of the motor 40 to drive the motor 40. The number of steps for one rotation of the rotating shaft 41 of the motor 40 may be 9000 steps. The control unit 98 may rotate the rotating shaft 41 of the motor 40 in one direction by increasing the number of steps.

For example, when the controller 98 selects 750 steps, the discharge tube 30 may be rotated 30 degrees. Here, the rotation angle of the discharge tube 30 may be the same as the rotation angle of the rotation shaft 41 of the motor 40. That is, the meaning that the discharge tube 30 is rotated 30 degrees may mean that the rotation shaft 41 of the motor 40 is rotated 30 degrees.

Also, when the control unit 98 selects the number of 1500 steps, the discharge tube 30 may be rotated 60 degrees, and when the control unit 98 selects the number of 2250 steps, the discharge tube 30 may be rotated 90 degrees. The discharge tube 30 can be rotated 120 degrees when the controller 98 selects 3000 steps, and the discharge tube 30 can be rotated 150 degrees when the controller 98 selects 3750 steps. The discharge tube 30 may be rotated 180 degrees when the controller 98 selects 4500 steps, and the discharge tube 30 may be rotated 210 degrees when the controller 98 selects 5250 steps. The discharge tube 30 can be rotated 240 degrees when the controller 98 selects 6000 steps, and the discharge tube 30 can be rotated 270 degrees when the controller 98 selects 6750 steps. When the control unit 98 selects 7500 steps, the discharge tube 30 can be rotated 300 degrees, and the control unit 98 selects 8250 steps. In this case, the discharge tube 30 may be rotated 330 degrees, and when the control unit 98 selects the number of 9000 steps, the discharge tube 30 may be rotated 360 degrees (1 rotation).

After the rotation shaft 41 of the motor 40 is rotated once, the control unit 98 may reset the number of steps of the motor 40 to zero. The controller 98 may reset the number of steps of the motor 40 to 0 and then increase the number of steps again so that the rotation shaft 41 of the motor 40 can continuously rotate in one direction.

In this embodiment, since the air discharge port 34 is returned to the original position every time the discharge tube 30 is rotated 180 degrees, the target step number for returning the air discharge port 34 may be 4500 steps and 9000 steps.

A plurality of target steps may be stored in the memory unit 981 at predetermined step number intervals. Since the plurality of target steps in this embodiment is 4500 steps and 9000 steps, the memory section 981 can store 4500 steps and 9000 steps, and the predetermined number of steps is 4500 steps and 9000 steps. It may be an interval of 4500 steps.

When the motor stop command is input, the controller 98 may correct the current step number by the number of steps obtained by adding the predetermined number of steps to the current number of steps of the motor 40.

For example, assuming that the current step number of the motor 40 is 3750 steps when the motor stop command is input to the control section 98, the control section 98 sets the predetermined number of steps to 3750 steps that is the current step number. The total number of 4500 steps can be added to correct the current number of steps to 8250 steps.

Thereafter, the control unit 98 may determine whether the corrected current step number is smaller than the number of steps for one rotation of the rotation shaft 41 of the motor 40. That is, the control unit 98 may determine whether the corrected current step number, 8250 steps, is smaller than 9000 steps, which is the number of steps for one rotation of the rotation shaft 41 of the motor 40.

As a result of the determination, if the corrected current step number is smaller than the number of steps for one rotation of the rotating shaft 41 of the motor 40, the control unit 98 may include a motor (among the plurality of target steps stored in the memory unit 981). In the rotation direction of the rotating shaft 41 of 40), the target step number located after the corrected current step number can be selected. That is, since the modified current step number of 8250 steps is smaller than the number of steps of 9000 steps for rotating one rotation shaft 41 of the motor 40, the control unit 98 stores a plurality of stored in the memory unit 981. Of the 4500 steps and 9000 steps, which are the target number of steps, the motor with the target number of steps is 9000, which is the number of 8250 steps, which is the modified current step number in the direction of rotation of the rotating shaft 41 of the motor 40. 40) can be driven.

The rotating shaft 41 of the motor 40 is stopped after being rotated by 9000 steps, so that the air outlet port 34 of the discharge tube 30 can be located at its original position.

As described above, when the current position of the rotating shaft 41 of the motor 40 is 3750 steps, the motor stop command by the operation of the user's motor power button 916 is input to the control unit 98, The rotating shaft 41 of the motor 40 is the current position of the rotating shaft 41 in the rotational direction of the rotating shaft 41 of the motor 40, among the 4500 steps and 9000 steps, which are the positions where the air outlet port 34 is returned to the original position. It can be stopped after rotating up to 9000 steps located far away.

As another example in which the control unit 98 corrects the current step number, assuming that the current step number of the motor 40 is 6000 steps when the motor stop command is input to the control unit 98, the control unit 98 displays the The current number of steps can be corrected to be 10,500 steps by adding up the number of steps of 4500, which is the predetermined number of steps, to the number of steps of 6000 that is the current steps.

Thereafter, the control unit 98 may determine whether the corrected current step number is smaller than the number of steps for one rotation of the rotation shaft 41 of the motor 40. That is, the control unit 98 may determine whether the corrected number of current steps, 10,500 steps, is smaller than 9000 steps, which is the number of steps for one rotation of the rotating shaft 41 of the motor 40.

As a result of the determination, if the corrected current step number is equal to or greater than the number of steps for one rotation of the rotating shaft 41 of the motor 40, the control unit 98 moves the rotating shaft 41 of the motor 40 from the corrected current step number. The corrected current step number can be re-corrected as the number of steps by subtracting the number of steps for one rotation. That is, since the corrected current step number of 10500 steps is equal to or greater than 9000 steps number of steps for one rotation of the rotating shaft 41 of the motor 40, the control unit 98 has the corrected current step number of 10500 steps. In the above, the corrected current step number can be re-corrected to be 1500 steps, which is the number of steps by subtracting 9000 steps, which is the number of steps for rotating the rotating shaft 41 of the motor 40 by one rotation.

Subsequently, the control unit 98, among the plurality of target steps stored in the memory unit 981, the motor is set to the target step number located next to the current step number re-corrected in the rotation direction of the rotating shaft 41 of the motor 40 ( 40) can be driven. That is, the control unit 98 is the number of target steps stored in the memory unit 981, the number of 4500 steps and 9000 steps, the current step number of the re-corrected in the rotation direction of the rotating shaft 41 of the motor 40 is 1500 The motor 40 can be driven by the number of 4500 steps, which is the target number of steps located after the number of steps.

The rotating shaft 41 of the motor 40 is stopped after being rotated by 4500 steps, so that the air outlet port 34 of the discharge tube 30 can be located at its original position.

As described above, when the current position of the rotating shaft 41 of the motor 40 is at 6000 steps, the motor stop command by the operation of the user's motor power button 916 is input to the control unit 98, The rotating shaft 41 of the motor 40 is the current position of the rotating shaft 41 in the rotational direction of the rotating shaft 41 of the motor 40, among the 4500 steps and 9000 steps, which are the positions where the air outlet port 34 is returned to the original position. It can be stopped after rotating up to 4500 steps located far away.

As described above, even if the motor stop command is input to the control unit 98 immediately before the air discharge port 34 of the discharge tube 30 is returned to the original position, the air discharge port 34 of the discharge tube 30 will be accurately positioned at the original position. You can.

15, when the user touches the motor power button 916 once, a motor driving command is input to the control unit 98 (S1).

When the motor driving command is input, the control unit 98 controls the number of steps of the motor 40 to drive the motor 40 (S2).

Thereafter, when the user touches the motor power button 916 again, a motor stop command is input to the controller 98 (S3).

When the motor stop command is input, the control unit 98 corrects the current step number by adding the current step number of the motor 40 to the number of 4500 steps, which is the predetermined step number (S4). For example, assuming that the current step number of the motor 40 is 3750 steps when the motor stop command is input to the control section 98, the control section 98 sets the predetermined number of steps to 3750 steps that is the current step number. The total number of 4500 steps can be added to correct the current number of steps to 8250 steps. As another example, assuming that the current step number of the motor 40 is 6000 steps when the motor stop command is input to the control section 98, the control section 98 sets the predetermined number of steps to 6000 steps that is the current step number. The total number of 4500 steps can be summed to correct the current number of steps to 10500 steps.

Thereafter, the control unit 98 determines whether the corrected current step number is smaller than the 9000 step number, which is the number of steps for rotating the rotating shaft 41 of the motor 40 (S5).

As a result of the determination S5, if the corrected current step number is smaller than 9000 step numbers, which is the number of steps for rotating the rotating shaft 41 of the motor 40 one revolution, the control unit 98 adds the changed value to the corrected current step number. The number of steps is determined as the target number of steps (S6). Here, the determined target step number is the target step number located next to the corrected current step number in the rotational direction of the rotating shaft 41 of the motor 40 among the plurality of target steps stored in the memory unit 981. . That is, the control unit 98 targets the number of target steps located next to the corrected current step number in the rotation direction of the rotation shaft 41 of the motor 40 among the plurality of target steps stored in the memory unit 981. It can be determined by the number of steps. In the case of the above example, since the modified current step number of 8250 steps is smaller than the number of steps of 9000 steps for one rotation of the rotating shaft 41 of the motor 40, the control unit 98 transmits to the memory unit 981. Of the stored number of target steps, 4500 steps and 9000 steps, the modified current step number in the rotational direction of the rotating shaft 41 of the motor 40 is 8250 steps, which is the number of target steps located next to the number of target steps. Can be determined by the number of target steps.

Thereafter, the control unit 98 drives the motor 40 with the determined number of target steps of 9000 steps (S7).

On the other hand, as a result of the determination S5, if the corrected current step number is equal to or greater than 9000 steps, which is the number of steps for one rotation of the rotating shaft 41 of the motor 40, the control unit 98 displays the corrected motor number 40 ) The corrected current step number is re-corrected by the number of steps obtained by subtracting 9000 steps, which is the number of steps for rotating the rotating shaft 41 in one rotation (S8). In the case of the other example, since the corrected current step number of 10500 steps is equal to or greater than 9000 steps number of steps for one rotation of the rotating shaft 41 of the motor 40, the control unit 98 is the modified current step number. The corrected current number of steps can be revised to 1500 steps, which is the number of steps obtained by subtracting 9000 steps, which is the number of steps for rotating the rotating shaft 41 of the motor 40 from 10500 steps.

Thereafter, the control unit 98 determines the number of steps in which the change value is added to the re-modified current step number as the target step number (S9). Here, the determined number of target steps is the number of target steps located after the current number of steps re-corrected in the rotational direction of the rotating shaft 41 of the motor 40 among the plurality of target steps stored in the memory unit 981. . That is, the control unit 98 targets the target step number located next to the current step number re-corrected in the rotation direction of the rotation shaft 41 of the motor 40 among the plurality of target steps stored in the memory unit 981. It can be determined by the number of steps. In the case of the other example, the controller 98 of the plurality of target steps stored in the memory unit 981, 4500 steps and 9000 steps, the current step re-corrected in the rotation direction of the rotating shaft 41 of the motor 40 The number of 1500 steps, which is the number of target steps located next to the number of 1500 steps, can be determined as the number of target steps.

Thereafter, the control unit 98 drives the motor 40 with the determined number of target steps of 4500 steps (S7).

Meanwhile, referring to FIGS. 3, 4A, 5, and 6, the discharge cover 77 is formed in a cylindrical shape to accommodate the discharge tube 30 between the front portion of the casing body 11 and the discharge tube 30. It can be arranged to be fixed, and at least the front portion of the discharge tube 30 may be located inside the discharge cover 77.

The rear end of the discharge cover 77 may be coupled to the front end of the cylindrical guider 60 described above, and the front end of the discharge cover 77 may extend forward to the front end of the casing body 11.

A ring-shaped seal 78 is disposed between the rear end of the discharge cover 77 and the discharge tube 30 so that air blown from the blower fan 20 leaks between the discharge cover 77 and the discharge tube 30. It can be prevented from being discharged to the outside.

The sealing 78 is fixedly coupled to the outer circumferential surface of the sealing 78 to the discharge cover 77, and the inner circumferential surface of the sealing 78 is disposed not to be fixed to the discharge tube 30 so that the discharge tube 30 is sealed. ) Can be rotated without interference.

3 and 4B, the fixing ring 79 is extrapolated to the discharge cover 77 so that the fixing ring 79 can be disposed between the discharge cover 77 and the casing body 11.

A hole 791 is perforated in the fixing ring 79, and an external temperature sensor S1 may be installed behind the hole. The external temperature sensor S1 may sense the temperature of the drying site where the drying air is ejected from the air outlet 34 of the discharge tube 30 and hits.

The external temperature sensor S1 may be an infrared sensor that senses temperature by infrared rays. The external temperature sensor S1 may detect the body temperature of the object to be dried before drying, and after drying, may detect the temperature of the drying site where drying is performed in real time.

The lighting device 70 may be disposed in front of the fixing ring 79, and the lighting device 70 includes a light emitting panel 71, a light diffusion module 72, a light guide 73, and a front cap 74 ).

The light emitting panel 71 may be an LED panel in which at least one LED module (not shown) is disposed, and two panel pieces 711 and 712 having an arc shape may form one ring-shaped panel 71. It can be arranged, a predetermined spacing space 713 between the two panel pieces (711, 712) can be formed, the light emitting panel 71 can be coupled to the fixing ring (79).

Although not shown here, a plurality of light emitting elements such as LEDs may be disposed on the light emitting panel 71 as light emitters. In addition, a plurality of light emitting elements having different wavelengths may be disposed to emit light of different colors and irradiate.

The light diffusion module 72 may be disposed in front of the light emitting panel 71, and may be formed of a light guide plate capable of diffusing and irradiating light emitted from the light emitting panel 71 to the front.

The light diffusion module 72 may be arranged such that the two module pieces 721 and 722 having a semicircle shape, such as the light emitting panel 71, form one ring-shaped module, and between the module pieces 721 and 722 The separation space 723 may be formed.

The ring-shaped light guider 73 is disposed in front of the light diffusion module 72 and can be irradiated to diffuse while guiding the light passing through the light diffusion module 72 forward. The lighting device 70 can illuminate a site where drying is performed, and accordingly, the skin state and hair quality of the object to be dried can be grasped by the lighting device 70.

On the other hand, the front cap 74 is inserted into the front opening in the casing body 11 and covered, and the light emitting panel 71, the light diffusion module 72, and the light guide 73 have a front cap 74 and a discharge cover ( 77).

The light diffusion module 72 and the light guide 73 may be inserted inside the front cap 74 and then the front cap 74 may be inserted into the front opening of the casing body 11.

Meanwhile, a pair of ionizers 75 may be disposed in the separation space 713 of the light emitting panel 71 and the separation space 723 of the light diffusion module 72, and the ionizer 751 is inserted. The cover 752 is inserted into the hole 731 formed in the light guide 73, so that the negative ions emitted from the ionizer 75 are blown through the nozzle 751 and the hole 753 of the ionizer cover 752. Can be released forward.

Accordingly, when the drying air is discharged toward the object to be dried, plasma is released to generate (+) (-) ions, so that harmful substances such as various bacteria contained in the air can be removed, and dust floating in the air By neutralizing and inviting the back, foreign substances such as dust can be prevented from being adsorbed on the object to be dried, and the skin and hair quality of the object to be dried can be kept moist.

Meanwhile, referring to FIGS. 3, 4C, 6, and 16, one end of the display device 80 installed at the rear of the dryer is inserted into the opening 151 formed in the center of the rear cover 15 described above. It includes a fixed base 81 to be coupled, a display panel 82 disposed at the rear of the base 81 to display various information, and a decoration 83 to couple the base and the display panel 82. .

The display panel 82 has current driving information that is being dried, for example, the temperature detected by the air temperature sensor S2 is 42.5 ° C, and the object to be dried that is currently being dried is a companion animal. , It can indicate that the operation duration of the dryer is 23M 01S (23 minutes 01 seconds).

On the other hand, the display panel 82 is formed of a touch panel, and a user can directly input and display various operation factors, for example, a desired heating temperature, discharge speed, and drying duration of drying air. , It is possible to receive and display information required for operation from an external input device, for example, a heating temperature and a drying time of drying air suitable for each object to be dried.

Therefore, the user can perform drying while easily grasping the currently operating operation information displayed on the display panel 82, and operating the optimal drying air temperature, air volume, wind speed, and drying duration according to the object to be dried. Different optimal drying operation can be performed according to the object to be dried by receiving or receiving information.

On the other hand, referring to Figure 2, 3 and 4d, the grip 90 may be coupled to the lower side of the casing (10). The grip 90 may include a cylindrical grip body 91 and a hemispherical lower cover 93 coupled to the lower side of the grip body 91. The grip body 91 may form a circumferential surface of the grip 90, and the lower cover 93 may form a bottom surface of the grip 90.

The grip body 91 may include a semi-cylindrical first grip piece 91a and a semi-cylindrical second grip piece 91b coupled to the first grip piece 91a. The first grip piece 91a and the second grip piece 91b may be combined with each other to form the grip body 91. The first grip piece 91a may form a front portion of the circumferential surface of the grip body 91, and the second grip piece 91b may form a rear portion of the circumferential surface of the grip body 91.

The lower extension portion 111 may protrude from the lower side of the casing 10, and the grip body 91 may be coupled to the lower extension portion 111. Specifically, the first and second grip pieces 91a and 91b may be coupled to the lower extension 111 protruding from the lower portion of the casing body 11 by the set screw 912.

The lower cover 93 may be assembled to the grip body 91 by an insertion protrusion 931 protruding upward in the upper direction of the lower cover 93.

Meanwhile, a heat dissipation cap 94 may be disposed between the grip body 91 and the lower cover 93. The heat dissipation cap 94 may dissipate heat generated by the battery 99 to be described later.

The heat dissipation cap 94 may include a heat dissipation ring 945 and a heat dissipation plate 946 disposed inside the heat dissipation ring 945. A heat dissipation through hole 941 may be formed in the heat dissipation ring 945. A plurality of through holes 941 for heat dissipation may be formed along the circumferential surface of the heat dissipation ring 945.

The top surface of the heat dissipation ring 945 may be fused to the lower side of the grip body 91. The heat sink 946 may be formed with an insertion hole 942 through the top and bottom. The insertion protrusion 931 of the lower cover 93 is forcibly inserted into the insertion hole 942 formed in the heat sink 946 to be combined with the heat sink 946.

The insertion protrusion 931 may have elastic force in the inner and outer directions. Hook protrusions may be formed on at least one side of the inside and outside of the insertion protrusion 931. When the insertion protrusion 931 is inserted into the insertion hole 942 formed in the heat sink 946, the hook protrusion is hooked on the upper surface of the heat sink 946, so that the insertion protrusion 931 can be hooked to the heat sink 946. have.

The insertion protrusions 931 may be formed on the upper surface of the lower cover 93 by being spaced apart from each other along the circumferential direction of the lower cover 93. The insertion protrusions 931 may be spaced apart from each other along the circumferential direction of the lower cover 93 on the upper surface of the lower cover 93 to form a pair. The insertion hole 942 formed in the heat sink 946 may be formed in a number corresponding to the insertion protrusion 931 at a position corresponding to the insertion protrusion 931.

On the other hand, in the embodiment of the present invention, the heat dissipation cap 94 is formed separately from the grip body 91 and the lower cover 93 to be combined or assembled with each other, but is not limited thereto, and the heat dissipation cap 94 is provided with the grip body ( 91), or may be formed integrally with the lower cover 93.

A first electrical terminal 95 having a ring shape may be disposed between the heat dissipation cap 94 and the lower cover 93, and a second electric terminal 96 may be disposed at the center of the bottom surface of the lower cover 93. The first and second electric terminals 95 and 96 may be electrically connected to an external power source, which will be described later.

A first electric wire passing hole 933 through which an electric wire connecting the second electric terminal 96 and the battery 99 passes may be formed in the lower cover 93, and the first electric terminal may be formed at the center of the heat sink 946. A second wire passing hole 943 through which the electric wire connecting the 95 and the battery 99 and the electric wire connecting the second electric terminal 96 and the battery 99 pass may be formed.

Meanwhile, the first permanent magnet 932 is attached to the lower cover 93 so that the grip 90 of the dryer 1 can be accurately and reliably seated on the seating portion 140 of the cradle 100 to be described later. The guide rib 911 may be formed to protrude from the lower portion of the grip body 91.

Two touch buttons 915 and 916 may be installed on the second grip piece 91b in the vertical direction, and a button case 917 and a button housing 97 are provided at the front of each of the two touch buttons 915 and 916. It can be mounted.

Among the touch buttons, one may be a dryer power button 915 for turning on / off the dryer, and the other may be a motor power button 916 for turning on / off the motor 40.

In addition, the control unit 98 and the battery 99 may be disposed inside the grip body 91. The battery 99 may be disposed below the control unit 98. The battery 99 may be installed in the lower space of the inside of the grip body 91 to be detachable, and the battery 99 may be charged by receiving power from the first and second electrical terminals 95 and 96.

Meanwhile, the battery 99 may separate the lower cover 93 from the heat dissipation cap 94, if necessary, and then withdraw it to the outside, and heat generated when the battery 99 is charged is transferred to the heat dissipation cap 94. It may be discharged to the outside through the formed through hole (941).

Referring to FIG. 17, in the dryer 1, the angle θ1 between the first half of the casing 10 and the grip 90 is an acute angle, and the angle θ2 between the rear part of the casing 10 and the grip 90. The grip 90 may be arranged to form an obtuse angle.

When the grip is formed as a reverse grip as described above, the drying air discharged from the dryer is advantageous for discharging downward, and the infant or companion animal is usually located at a lower position than the dryer, so that the infant or companion animal is easily dried. I can do it.

In addition, through-holes 141 and 150 formed in the cylindrical cap 14 and the rear cover 15 through which external air flows into the casing 10 are positioned on the upper side of the grip 90 and the grip is formed of the reverse grip 90. Therefore, it is possible to prevent foreign matter or moisture from the user's hand gripping the grip 90 from entering the casing 10.

On the other hand, as a result of repeated experiments, when using a dryer for infants or companion animals, the angle θ1 between the front portion of the casing 10 and the grip 90 is preferably 60 ㅀ to 85 ㅀ, and the rear of the casing 10 It has been found that the angle θ2 between the part and the grip 90 is preferably 100 ㅀ to 130 ㅀ.

Referring briefly to the holder 100 with reference to FIGS. 18 and 19, the holder 100 is mounted in a vertical direction, is formed in a cylindrical shape, and a mounting housing 110 in which a post 116 is formed in the center, and the mounting housing Includes a base 111 coupled to the lower side of the 110 and a hemispherical tub 120 connected to the upper side of the mounting housing 110 so as to be movable up and down and the rod 121 coupled to the lower side is connected. do.

Meanwhile, the base 111 and the mounting housing 110 may be mounted on a docking station 200 to which external power is connected.

The rack 122 is formed on the rod 121 of the tub 120, and the rack 122 is engaged with the pinion 130 of the motor, so that the rod 121 is moved up and down when the motor is operated. , The tub 120 can also be moved up and down.

The battery 190 is installed in the mounting housing 110, and the first and second contact terminals 112 and 113 are disposed on the bottom surface of the base 111, so that the first and second contacts are provided through the docking station 200. When the external power is electrically connected to the terminal, the battery 190 may be charged.

A hemispherical guide 120A having a lower portion opened inside the upper portion of the tub 120 may be connected, and a hemispherical supporter 123 having a lower portion opened inside the guide 120A may be raised. The supporter 123 may be tilted in the front and rear directions (left and right directions in FIG. 18) by the operation of a motor (not shown). As the supporter 123 is tilted in the front-rear direction, the seating portion 140 coupled to the supporter 123 can be tilted in the front-rear direction. Here, the front-rear direction means the front-rear direction when the air discharge direction of the dryer 1 is defined as front.

A hemispherical hollow portion 140A is formed in the lower portion, and a seating portion 140 in which a cylindrical hollow portion 140B is formed in the upper portion may be coupled to the inner side of the supporter 123.

In order to mount the dryer 1 on the cradle 100, when the grip 90 of the dryer 1 is inserted into the seating portion 140, the lower cover 93 of the grip 90 is attached to the seating portion 140. The formed hemispherical hollow portion 140A is accommodated, and the lower portion of the grip 90 is inserted into the cylindrical hollow portion 140B so that the dryer 1 can be mounted on the holder 100.

The first contact terminal 143 and the second contact terminal 144 may be disposed in the hollow portions 140A and 140B. The first contact terminal 143 may be disposed at a position corresponding to the first electrical terminal 95, and the second contact terminal 144 may be disposed at a position corresponding to the second electrical terminal 96.

When the grip 90 is inserted into the hollow portions 140A and 140B of the seating portion 140, the first contact terminal 143 may be in contact with the first electric terminal 95. In addition, when the grip 90 is inserted into the hollow portions 140A and 140B of the seating portion 140, the second contact terminal 144 may be in contact with the second electric terminal 96.

In addition, the second permanent magnet 145 having the opposite polarity to the first permanent magnet 932 installed on the lower cover 93 of the grip 90 may be disposed on the seating portion 140, and the grip 90 A guide groove 146 into which the formed guide rib 911 is inserted may be formed in the seating portion 140.

Therefore, the grip 90 of the dryer can be accurately and closely placed at a predetermined position of the seating portion 140.

A proximity sensor or an image capturing unit 300 is installed on the front upper side of the cradle 100 to detect the size and separation distance of the object to be dried, and transmit the detected signal to the control unit 195. .

When the dryer is installed and operated on the cradle 100, when the size and separation distance of the object to be dried is detected by the proximity sensor or the image capturing unit 300, the detected signal is transmitted to the control unit 195, the control unit (195) operates the motor 130 for adjusting the height of the tub, and also operates a motor (not shown) for tilting the supporter 123 to realize optimal drying performance according to the size and position of the object to be dried. The height and tilt angle of the dryer can be adjusted so as to be possible.

Unexplained reference numeral 150 is an LED panel, which can illuminate the front of the cradle, 160 is a photocatalyst, 165 is a blue light emitting panel, 170, 180 are first and second blowing fans, and the first and second blowing fans are operated to operate outside. Air is introduced through the through hole 114 formed in the cradle, and then filtered and purified air may be discharged to the outside of the cradle while passing through the photocatalyst. Reference numeral 193 denotes a space portion for passing the cable formed in the post 116 of the mounting housing.

The dryer according to the embodiment of the present invention can be operated by being coupled to a cradle, so there is no need for an operator to grip and dry the dryer, and the cradle performs an air cleaning function and a lighting function, so that the object to be dried is dried. Can be enjoyed while enjoying drying in a comfortable environment for a long time, and the height and inclination angle of the dryer are adjusted according to the size and position of the object to be dried, so that the body can be properly dried.

Those of ordinary skill in the art to which the present invention pertains will appreciate that the present invention may be implemented in other specific forms without changing its technical spirit or essential features. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the following claims rather than the above detailed description, and it should be interpreted that all changes or modifications derived from the meaning and scope of the claims and equivalent concepts thereof are included in the scope of the present invention.

1: Dryer 10: Casing
20: blower fan 30: discharge tube
33: air inlet 34: air outlet
35: projection 37: recess
40: motor 41: rotating shaft
44: connector 47: stopper
60: guider 61, 62, 63: guider piece
98: control unit 601: groove
981: memory unit H: heater

Claims (17)

Hollow casing with built-in blower fan and heater;
A discharge tube rotatably installed in front of the casing and having an air inlet through which air blown by the blower fan flows, and an air outlet through which air is discharged;
A motor connected to the discharge tube to rotate the discharge tube;
A memory unit in which a plurality of target step numbers for moving the air discharge port to the original position among the step numbers of the motor are stored at predetermined step number intervals; And
Includes a control unit for controlling the number of steps of the motor to drive the motor when the drive command of the motor is input;
When the stop command of the motor is input, the control unit corrects the current step number by the number of steps obtained by adding the predetermined step number to the current step number of the motor, and then the corrected current step number changes the rotation axis of the motor 1 If less than the number of steps to rotate, the dryer drives the motor with the target step number located next to the corrected current step number in the rotation direction of the rotation axis of the motor among the plurality of target steps stored in the memory unit. The method according to claim 1,
The control unit,
If the corrected current step number is equal to or greater than the number of steps for rotating the motor one time, the corrected current step number is re-corrected by the number of steps obtained by subtracting the number of steps for rotating the motor rotation shaft by one from the corrected current step number Then, of the plurality of target steps stored in the memory unit, the dryer drives the motor with the target step number located next to the current step number that is re-corrected in the rotation direction of the rotation axis of the motor. The method according to claim 1,
The air outlet is a dryer in which the discharge tube is returned to its original position multiple times in one revolution. The method according to claim 3,
The air outlet is formed in a rectangular shape, and the discharge tube is a dryer that is returned to its original position every 180 degrees rotation. The method according to claim 1,
A projection protruding in the radial direction is formed outside the discharge tube,
A dryer in which the groove into which the projection is movable is formed in the casing. The method according to claim 5,
The groove is a dryer formed in a cylindrical guider installed in the casing. The method according to claim 6,
The cylindrical guider is a dryer formed by combining a plurality of guider pieces (piece). The method according to claim 5,
The groove is a dryer that forms a closed curve such that when the discharge tube is rotated, the protrusion is rotated along the groove. The method according to claim 8,
The groove is a dryer in which forward and reverse waveforms are alternately formed. The method according to claim 9,
The groove is a dryer formed of sinusoidal waves. The method according to claim 9,
The protrusion includes a pair of protrusions spaced at 180-degree intervals in the rotation direction of the discharge tube. The method according to claim 11,
The wave formed by the groove is a dryer formed by symmetrical to each other in a forward and reverse direction based on a center reference line at a region where the phase angle is spaced apart by 180 degrees. The method according to claim 11,
Further comprising a connector orthogonally connected to the rotating shaft to the rotating shaft of the motor,
A dryer in which at least one end of the connector is connected to the discharge tube. The method according to claim 13,
The discharge tube is formed with a pair of grooves spaced apart at 180-degree intervals in the rotational direction of the discharge tube,
A dryer in which both ends of the connector are inserted into the recess. The method according to claim 14,
The virtual straight line connecting the pair of protrusions and the virtual straight line connecting the pair of recesses are orthogonal to each other. The method according to claim 14,
A stopper covering at least a portion of the groove portion is fastened to the discharge tube,
The stopper is a dryer that prevents both ends of the connector from being separated from the recess. Hollow casing with built-in blower fan and heater;
A discharge tube rotatably installed in front of the casing and having an air inlet through which air blown by the blower fan flows, and an air outlet through which air is discharged;
A motor connected to the discharge tube to rotate the discharge tube; And
A control method of a dryer comprising: a memory unit in which a plurality of target step numbers for moving the air discharge port to the original position among the number of step steps of the motor are stored at predetermined step number intervals;
When the driving command of the motor is input, controlling the number of steps of the motor to drive the motor;
When the stop command of the motor is input, correcting the current step number by the number of steps obtained by adding the predetermined step number to the current step number of the motor; And
If the current number of steps modified in the step of modifying the current number of steps is less than the number of steps for rotating the motor one, among the plurality of target steps stored in the memory unit, the corrected direction in the rotation direction of the rotation axis of the motor And driving the motor with a target number of steps located next to the current number of steps.

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