KR102342700B1 - Hairdryer with separate cold and hot air blowers - Google Patents

Abstract

The hair dryer in which cold air and hot air outlets are separately formed is formed by branching first and second air outlets 112 and 114 for discharging hot air or discharging hot air and cold air at the same time to the front, and an air intake port for sucking external air in the rear (116) is formed, the body 110 is formed in a tubular shape for forming a passageway of the wind therein, and a housing unit 100 consisting of a handle 120 formed in the lower portion of the body 110; a blower 200 installed inside the air intake port 116 of the housing unit 100 to inhale external air according to a user's operation to forcibly generate wind and send it to the transfer passage; Electromagnetic heat generation that is installed in the transfer passage formed inside the housing 100 so that the acting surface or the reaction surface faces upward or downward to generate and absorb heat with respect to the upper and lower surfaces according to the user's operation part 300; an operation unit 400 installed on one side of the housing unit 100 and configured to select power on/off, hot air mode, cold and hot air mode, and control speed or intensity according to a user's operation; A control unit 500 installed inside the housing 100 and selectively controlling the operation of the blower 200 and the electronic heating unit 300 according to an operation command through the operation unit 400 by a user; ; It is configured to include an electric heating body 600 for heating the reaction surface (S3) of the electromagnetic heating unit 300 under the control of the control unit (500).

Description

Hair dryer with separate cold and hot air blowers

The present invention relates to a hair dryer, and more particularly, to a hair dryer in which a blow port for cold air and a blow port for hot air are separately formed in a body of the hair dryer.

In general, a hair dryer is a home appliance that sucks air from the outside by a blower fan that rotates with a motor and then blows it out with cool wind or heats it up and discharges it with warm wind. It is mainly used when drying wet hair or fixing hair styles. used

Such a hair dryer has a stick shape or a L shape. The stick-shaped hair dryer is for drying or grooming hair while holding the body of the hair dryer by hand, and is suitable for a user to dry or trim his/her own hair. In addition, the L-shaped hair dryer has a handle and a body bent by 90 degrees, so it is suitable for trimming other people's hair or other articles.

However, since such a general hair dryer includes a motor and a heater coil to heat air, a user may be exposed to electromagnetic waves, and vibration and noise are greatly generated. In addition, the temperature response (immediate cooling or heating) is low, and since there is no simultaneous cooling and heating function, temperature control in the vicinity of room temperature is very difficult. In addition, since components such as motors and heater coils, which are fatigue-damaged mechanical parts, are used, it has the shortest lifetime reliability as a cooling means.

In order to solve the problems of the prior art, Korean Patent Application Laid-Open No. 10-2012-0024335 (March 14, 2012) has a temperature control device (F) and a heater A to supply air to the cooler at a constant temperature. and a thermoelectric element (Peltier) built-in cooling hair dryer in which the air passing through heater A passes through a cooler (E) composed of a thermoelectric element (Peltier element) (D) and a heat absorbing plate (C) and is heated again by heater B has been

Such a prior art uses the 'Peltier effect', in which one side generates heat and the other side cools when electricity flows through a semiconductor with different properties in a thermoelectric module, an electronic cooling and heating component that controls temperature by supplying electricity to semiconductor devices. Therefore, it is an eco-friendly part that does not use freon gas, which is the cause of ozone layer depletion, and is attracting a lot of attention.

However, since this prior art uses two heaters, not only the structure is complicated, but also the cold air and the warm air cannot be used at the same time according to the user's need to fix the finished hair style after completing the hair style. .

Republic of Korea Patent Publication No. 10-2012-0024335 (March 14, 2012) Republic of Korea Patent Publication No. 10-1625834 (May 25, 2016)

The present invention has been devised to solve the disadvantages of the prior art described above, and an object of the present invention is to reflect the ambient temperature that changes according to the change of season while using a thermoelectric element, and selectively multi-stage high-temperature wind according to the user's operation It is to provide a hair dryer in which the cold air and hot air vents that can provide are separately formed.

Another object of the present invention is to provide a hair dryer in which cold air and hot air vents are separately formed, which can simultaneously provide both hot air and cold air for fixing a hair style when hot air is used to produce finished hair styling.

The hair dryer in which the cold air and hot air outlets are separately formed for achieving the object of the present invention as described above, the first and second air outlets 112 and 114 for discharging hot air to the front or discharging hot air and cold air at the same time are branched and formed, An air intake port 116 for sucking in external air is formed on the rear side, a body 110 formed in a tubular shape for forming a passage of wind therein, and a handle 120 formed on a lower portion of the body 110 . a housing unit 100 composed of; a blower 200 installed inside the air intake port 116 of the housing unit 100 to inhale external air according to a user's operation to forcibly generate wind and send it to the transfer passage; Electromagnetic heat generation that is installed in the transfer passage formed inside the housing 100 so that the action surface or the reaction surface faces upward or downward to generate and absorb heat with respect to the upper surface and the lower surface according to the user's operation part 300; a manipulation unit 400 installed on one side of the housing unit 100 and configured to select power on/off, hot air mode, cold and hot air mode, and control speed or intensity according to a user's manipulation; A control unit 500 installed inside the housing 100 and selectively controlling the operation of the blower 200 and the electronic heating unit 300 according to an operation command through the operation unit 400 by a user; ; It is configured to include an electric heating body 600 for heating the reaction surface (S3) of the electromagnetic heating unit 300 under the control of the control unit (500).

In addition, in the hair dryer in which the cold and hot air outlets are separately formed for achieving the object of the present invention, the inner air outlet 113a is formed in the center of the circular air outlet 113 in the front, and the external air outlet is formed on the outer peripheral surface of the inner air outlet 113a. (113b) is formed, the air intake port 116 for sucking the outside air is formed in the rear, the warm air is discharged through the internal tuyere (113a), the cold air is transported so that the cold air is discharged through the external tuyere (113b) A housing having a guide diaphragm 115 that divides a path is formed, a body 110 formed in a tubular shape for forming a conveying passage of wind therein, and a handle 120 formed in the lower portion of the body 110 . part 100; a blower 200 installed inside the air intake port 116 of the housing unit 100 to inhale external air according to a user's operation to forcibly generate wind and send it to the transfer passage; Electromagnetic heat generation that is installed in the transfer passage formed inside the housing 100 so that the action surface or the reaction surface faces upward or downward to generate and absorb heat with respect to the upper surface and the lower surface according to the user's operation part 300; a manipulation unit 400 installed on one side of the housing unit 100 and configured to select power on/off, hot air mode, cold and hot air mode, and control speed or intensity according to a user's manipulation; a control unit 500 installed inside the housing 100 to selectively control the operation of the blower unit 200 and the electronic heating unit 300 according to a user command through the manipulation unit 400; It is characterized in that it is configured to include an electric heating body 600 for heating the reaction surface (S3) of the electromagnetic heating unit 300 under the control of the control unit (500).

The hair dryer in which the cold air and hot air outlets are separately formed according to the present invention as described above has the following effects.

First, while using a thermoelectric element, it is possible to selectively provide a multi-stage high-temperature wind according to the user's operation by reflecting the ambient temperature that changes according to the change of season, so that it is relatively heated compared to conventional products using a heater coil or a thermoelectric element. ability can be improved.

In addition, when hot air is used to direct the finished hair styling, both hot air and cold air can be provided at the same time to fix the hair style. can be fixed

In addition, it prevents exposure to electromagnetic waves generated from the product when the user cares for hair, reduces vibration and noise during use, and has good temperature responsiveness (immediate cooling or heating) because the electronic cooling or heating method is used. It has a relatively better effect than a conventional product using a coil.

In addition, since components such as motors and heater coils, which are fatigue-damaged mechanical parts, are not used, it can have the longest life reliability as a cooling means, further improving product competitiveness.

1 is a perspective view of a hair dryer in which cold air and hot air vents are separately formed according to a first preferred embodiment of the present invention;
2 is a cross-sectional view of a hair dryer in which cold air and hot air vents are separately formed according to a first preferred embodiment of the present invention;
3 is a block diagram illustrating a circuit connection relationship of a hair dryer in which cold air and hot air outlets are separately formed according to a first preferred embodiment of the present invention;
4 is a block diagram of a control unit of a hair dryer in which cold air and hot air vents are separately formed according to a first preferred embodiment of the present invention;
5 is a perspective view of a thermoelectric element of a hair dryer in which cold air and hot air vents are separately formed according to a first preferred embodiment of the present invention;
6 is a perspective view of a hair dryer in which cold air and hot air vents are separately formed according to a second preferred embodiment of the present invention;
7 is a cross-sectional view of a hair dryer in which cold air and hot air vents are separately formed according to a second preferred embodiment of the present invention.

1 is a perspective view of a hair dryer in which cold air and hot air vents are separately formed according to a preferred embodiment of the present invention; 2 is a cross-sectional view of a hair dryer in which cold air and hot air vents are separately formed according to a preferred embodiment of the present invention.

1 to 2 , the hair dryer in which cold air and hot air outlets are separately formed according to a preferred embodiment of the present invention, first and second air outlets 112 and 114 for discharging hot air to the front or discharging hot air and cold air at the same time ) is branched, and an air intake 116 for sucking outside air is formed at the rear, and a body 110 formed in a tubular shape to form a wind conveying passage therein, and the lower portion of the body 110 . The housing unit 100 composed of a handle 120 formed in the housing unit 100 and the air intake port 116 of the housing unit 100 are installed inside the air intake port 116 to inhale the outside air according to the user's operation to forcibly generate wind, thereby causing a transfer passage. The blowing unit 200 provided with a driving motor 220 for driving the first blowing fan 210 and the first blowing fan 210 sent to the ) or the reaction surface (S3) is installed to face the lower or upper direction, and the electronic heating unit 300 and the housing unit 100 to perform heat generation and heat absorbing operation with respect to the upper surface and the lower surface according to the user's operation. It is installed on one side of the operation unit 400 for selecting the power on/off, hot air mode, cold and hot air mode and adjusting the speed or intensity according to the user's operation, and is installed inside the housing 100, The control unit 500 for selectively controlling the operation of the blower 200 and the electronic heating unit 300 according to the user's operation command through the operation unit 400, and the electronic heating unit 300 according to the control of the control unit 500 ) of the electric heating body 600 for heating the reaction surface (S3), and supplying DC power to the electronic heating unit 300 under the control of the control unit 500, or for heating the electric heating body 600 It is composed of a power supply unit 700 for supplying power.

Here, the output end of the first air outlet 112 is formed integrally with the body 110 as shown in FIG. 1 , and the output end of the second air outlet 114 is vertically or horizontally through the joint joint 118 . It is preferably formed so as to be rotated.

In addition, as shown in FIG. 2 at the input end of the reaction surface S3 of the electronic heating unit 300, the wind does not pass through the reaction surface S3 of the electronic heating unit 300 under the control of the control unit 500. It is preferable that the opening and closing member 250 selectively opened and closed according to the control of the control unit 500 is provided.

In a preferred embodiment of the present invention, the opening and closing member 250 is, as shown in FIG. 2, selectively according to the control of the control unit 500 of the reaction surface (S3) of the thermoelectric element 310 of the electronic heating unit 300. As an element capable of preventing wind from passing through the heat dissipation element 320 located on the upper portion, an electronic solenoid valve or relay may be used.

In addition, it is preferable that the first and second air outlets 112 and 114, the cold air outlet 114 is formed in a structure in which a portion is rotated in the vertical or left and right directions with respect to the housing 100 as shown in FIG. 2 .

In addition, the electromagnetic heating unit 300, as shown in FIG. 5, is installed so that the action surface (S1) or the reaction surface (S3) is directed downward or upward in the transfer passage formed inside the housing 100. , is formed to surround the outside of the thermoelectric element 310 and the thermoelectric element 310 that generates heat and absorbs heat with respect to the upper surface and the lower surface under the control of the controller 500, and is generated in the thermoelectric element 310 Heat dissipation composed of an upper heat sink 320b for discharging hot or cold air to the upper side and a lower heat sink 320a for discharging cold air or heat to the bottom

The element 320, the lower heat sink 320a, the upper heat sink 320b, and the heat dissipation element 320 of the heat dissipation element 320 are respectively installed in the front intake 118 of the body 110 to supply external air, It consists of first to third temperature sensing sensors 330 , 340 , 360 that periodically sense the ambient temperature and transmit it to the control unit 500 .

Here, the thermoelectric element 310 is also expressed as a Peltier element, a thermoelectric conversion element, a semiconductor element, a Peltier element, a temperature module, and a TEC, and is a semiconductor element that allows free cooling, heating and temperature control by direct current, and a thermoelectric element By flowing a direct current to the thermoelectric element, (1) a temperature difference is generated on both sides of the device, and (2) heat is absorbed from the low-temperature side and heat is generated from the high-temperature side, pushing heat from the low-temperature side to the high-temperature side of the thermoelectric element. That is, it acts as a heat pump, and (3) changing the direction of the pumped heat simply by changing the polarity of the current and changing the size of the current can change the size of the amount of heat pumped.

In addition, the blower 200, as shown in FIG. 2, is installed inside the housing 100, sucks outside air according to a user's operation and forcibly blows wind, an electromagnetic heating part installed in the transfer passage. A first blower fan 210 that is sent to the lower heat sink 320a of the heat dissipation element 320 of 300, and a first motor 220 that drives the first blower fan 210 under the control of the controller 500 And, according to the user's operation, by forcibly generating wind by sucking in external air, a second blowing fan 230 which sends to the upper heat sink 320b of the heat dissipation element 320 of the electromagnetic heating unit 300 installed in the transfer passageway; It is preferable to include a second motor 240 for driving the second blowing fan 230 under the control of the controller 500 .

At this time, when a single blowing fan 210 is provided in the blowing unit 200, the external air is located under the working surface S1 of the thermoelectric element 310 of the electromagnetic heating unit 300, the lower heat sink 320a) It is preferable that the thermoelectric element 310 is simultaneously transferred to the upper heat sink 320b located above the reaction surface S3.

However, when the blowing unit 200 is provided with two first and second blowing fans 210 and 230 , respectively, the first blowing fan 210 is located below the working surface S1 of the thermoelectric element 310 . It is preferable to send the wind to the heat sink 320a, and the second blowing fan 230 to send the wind to the upper heat sink 320b located above the reaction surface S3 of the thermoelectric element 310.

In the case of using the two blowing fans 210 and 230 in this way, as shown in FIG. 2 , the lower heat sink 320a of the heat dissipation element 320 to prevent leakage of wind provided by each of the blowing fans 210 and 230 . It is preferable that the second partition wall 117 for independently transmitting the heat dissipation element 320 to the upper heat dissipation plate 320b is integrally formed with the body 110 .

Here, the control unit 500 is an electric heating element ( 600) is preferably controlled, and a detailed description thereof will be described later in the operation of the invention.

As shown in FIG. 4, the control unit 500 converts the temperature value sensed in analog signal form by the manipulation unit 400 and the first to third temperature sensors 330, 340, and 360 into a digital signal A / D converter 510, a forward/reverse switching circuit 530 for converting the direction of the current entering the thermoelectric element 310, and the first to third temperature sensors (330, 340, 360) according to the temperature value set in the operation unit 400 It is composed of a microprocessor 520 that controls the direction of the output current of the forward/reverse switching circuit 530 according to the detected temperature value.

In addition, the operation unit 400, as shown in FIGS. 1 and 2, the power on/off switch 410 for switching and controlling the power applied from the inside or the outside, and the warm air in a preset range according to the user's operation It consists of one or more mode switches 420 comprising a low stage hot air switch, a high stage warm air switch providing warm air at a relatively higher temperature than a low stage warm air, and a cold and hot air switch providing both warm air and cold air in a preset range. It is preferable that the power on/off switch 410 and the mode switch 420 are configured as a selective combination of at least one button switch, a sliding switch, or a rotary switch.

In addition, the electric heating element 600 may be selected from an electric resistance heating wire, a PCT heating element, a coil heater, an input heater, a cartridge heater, a casting heater, a sheath heater, a halogen heater, an infrared heater, a fin heater, a ceramic band heater, a flange heater, etc. All heating elements using electricity are applicable.

In addition, as shown in FIG. 2 , the power supply unit 700 selectively includes a battery (not shown) capable of accumulating electrical energy to have a wireless function, so that the hair dryer selectively selects a wireless, wired, and wired/wireless function. Since it can be provided, it has the advantage of improving energy efficiency and strengthening the competitiveness of products when implementing a wireless function.

7 is an exploded perspective view of a hair dryer in which cold air and hot air vents are separately formed according to a second preferred embodiment of the present invention.

As shown in FIGS. 6 and 7, the hair dryer in which the cold air and hot air outlets are separately formed according to a second preferred embodiment of the present invention is an internal air outlet (113a) formed in the center of the circular air outlet 113 in the front, and , an external tuyere 113b is formed on the outer peripheral surface of the inner tuyer 113a, an air intake 116 for sucking in external air is formed at the rear, and the warm air is discharged through the internal tuyer 113a, and the cold air is A guide diaphragm 115 for partitioning a transport path of the wind is formed so as to be discharged through the tuyere 113b, and a body 110 formed in a tubular shape to form a transport path of the wind therein, and the lower portion of the body 110 The housing unit 100 composed of a handle 120 formed on the The blowing unit 200 provided with a driving motor 220 for driving the first blowing fan 210 and the first blowing fan 210 sent to the ) or the reaction surface (S3) is installed to face the lower or upper direction, and the electronic heating unit 300 and the housing unit 100 to perform heat generation and heat absorbing operation with respect to the upper surface and the lower surface according to the user's operation. It is installed on one side of the operation unit 400 for variably adjusting the selection and intensity of on/off, hot air mode, cold and hot air mode of the power source according to the user's operation, and is installed inside the housing 100, The control unit 500 for selectively controlling the operation of the blower 200 and the electronic heating unit 300 according to the user's operation command through the operation unit 400, and the electronic heating unit 300 according to the control of the control unit 500 ) of the electric heating element 600 for heating the reaction surface (S3), and supplying DC power to the electronic heating unit 300 under the control of the control unit 500, or supplying power to the electric heating element 600 It is composed of a power supply unit (700).

The second preferred embodiment of the present invention has the same configuration and operation as that of the first preferred embodiment of the present invention, but the internal structure of the air outlet 113 formed in the front of the body 110 of the housing 100 is a guide diaphragm ( 115), it is divided into an internal tuyere 113a and an external tuyer 113b and is the same as a conventional hair dryer in appearance, but provides hot and cold air at the same time when hot air is used to produce completed hair styling according to the present invention. , It is in that it can execute the warm air mode, and the remaining components and operations are the same.

Here, the size or area of the internal tuyere 113a has an area of 80 to 90% of the total tuyere 113, and the size or area of the external tuyere 113b is 10 to 20% of the area of the total tuyeres 113. It is preferable to be formed to have

In addition, although the cold air may be discharged through the entire external tuyere 113b, it will also be possible to form an internal structure so that only the upper portion of the external tuyere 113b is discharged, as in the first embodiment of the present invention.

In addition, the inner shape of the guide diaphragm 115 connected to the internal tuyere 113a and the external tuyere 113b is formed in a screw shape, as shown in FIG. The emission intensity can be improved.

In the first preferred embodiment of the present invention described above, the first air outlet 112 for discharging hot air in the cold/warm air mode is located at the lower side, and the second air outlet 114 for discharging the cold air is formed to be located at the upper side. In the second preferred embodiment of the present invention, in the second preferred embodiment of the present invention, the first air outlet 112 for discharging warm air is located in the middle , the second air outlet 114 for discharging the cold air is formed to be located on the outside of the first air outlet 112, so that the styling is fixed with the cold air discharged from the outside of the warm air while trimming the hair with warm air. .

Hereinafter, the operation of the hair dryer in which cold air and hot air vents are separately formed according to the first and second preferred embodiments of the present invention will be described with reference to the accompanying drawings.

(1) Initial state setting

In order for a user to use the hair dryer according to the present invention, in the case of a wired product, the electric cord drawn out to extend outwardly to the power supply unit 700 is connected to a power outlet, and in the case of a wireless product, the battery provided in the power supply unit 700 is set to a certain extent. When the on/off switch of the operation unit 400 is turned “on” in the charging state for a while, the control unit 500 determines whether there is an abnormality in the initial state of the product, and when it is determined that the product is in a normal state, the outer surface of the housing 100 It indicates the normal state by using the status indicator mounted on the .

(2) Operation mode setting

When the current state is determined to be a normal state, the user manipulates the mode switch 420 of the operation unit 400 to provide warm air in a preset range (1) low stage warm air mode, which is relatively higher than that of low temperature air mode. Select one desired mode from among (2) high-level warm air mode providing warm air, and (3) cold/warm air mode that simultaneously provides high-level warm air and cold air in a preset range (S11)

At this time, the microprocessor 520 of the control unit 500 determines which mode among the low stage warm air mode, the high stage warm air mode, and the cold and warm air mode is the current mode selected by the user (S12).

(3) Low stage warm air mode

At this time, when the result of the mode determination step S12 is determined to be the low-stage warm air mode, the microprocessor 520 of the control unit 500 first drives the first driving motor 220 of the blower 200 to drive the first blowing fan. (210) forcibly sucks in the outside air through the rear suction port 116 formed at the rear of the body 110 of the housing 100 to generate wind and sends it to the conveying passage formed inside the body 110 (S13)

On the other hand, when the working surface S1 of the thermoelectric element 310 of the electronic heating unit 300 is set in the downward direction and the reaction surface S3 is set in the upward direction, the microprocessor 520 of the control unit 500 is a forward/reverse switching circuit The direction of the current entering the thermoelectric element 310 through 530 is set so that the working surface S1 of the thermoelectric element 310 is directed downward and the reaction surface S3 is upwardly directed to the thermoelectric element. ( 310 ) is applied ( S14 ) At this time, the controller 500 preferably applies the voltage and current applied to the thermoelectric element 310 at a level corresponding to the preset low-stage warm air mode.

Accordingly, the working surface S1 of the thermoelectric element 310 of the electronic heating unit 300 emits heat while the reaction surface S3 of the thermoelectric element 310 absorbs heat, but under the control of the controller 500 Accordingly, since the opening and closing member 250 located at the front end of the upper heat sink 320b of the heat dissipation element 320 maintains the closed state, the wind provided from the blower 200 is the upper portion of the reaction surface S3 of the thermoelectric element 310 . Since the upper heat sink 320b disposed in the first tuyere 112 passes through only the lower heat sink 320a disposed under the working surface S1 of the thermoelectric element 310 without passing through, it is finally discharged through the Warm air of 50 to 60 ℃ heated wind passing through the lower heat sink 320a of the heat dissipation element 320 installed on the working surface S1 of the thermoelectric element 310 can be discharged through the first air outlet 112. (S15)

(3) High stage warm air mode

On the other hand, if the result of the mode determination step (S12) is determined to be a high-stage warm air mode, the microprocessor 520 of the control unit 500 first drives the first driving motor 220 of the blower 200 to drive the first blowing fan. (210) forcibly sucks in the outside air through the rear suction port 116 formed at the rear of the body 110 of the housing 100 to generate wind and sends it to the conveying passage formed inside the body 110 (S16)

On the other hand, the microprocessor 520 of the control unit 500 changes the direction of the current entering the thermoelectric element 310 through the forward/reverse switching circuit 530 so that the working surface S1 of the thermoelectric element 310 is downwardly directed toward the reaction surface ( S3) applies a current in a preset direction to the upper direction to the thermoelectric element 310 (S17). At this time, the control unit 500 sets the voltage and current applied to the thermoelectric element 310 to the preset high-stage warm air mode. It is desirable to apply at a corresponding level.

Accordingly, the working surface S1 of the thermoelectric element 310 of the electronic heating unit 300 emits heat while the reaction surface S3 of the thermoelectric element 310 absorbs heat, but under the control of the controller 500 Accordingly, since the opening and closing member 250 located at the front end of the upper heat sink 320b of the heat dissipation element 320 maintains the closed state, the wind provided from the blower 200 is the upper portion of the reaction surface S3 of the thermoelectric element 310 . Since the upper heat sink 320b disposed in the first tuyere 112 passes through only the lower heat sink 320a disposed under the working surface S1 of the thermoelectric element 310 without passing through, it is finally discharged through the The hot air of 60 ~ 70 ℃ heated by the wind passing through the lower heat sink 320a of the heat dissipation element 320 installed on the working surface S1 of the thermoelectric element 310 can be discharged through the first air outlet 112. (S18)

On the other hand, when the current mode is a low stage or a high stage warm air mode, the control unit 500 is a second temperature sensor installed on the upper heat sink 320a of the heat dissipation element 320 installed on the reaction surface S3 of the thermoelectric element 310 ( 340) and the temperature sensed value of the third temperature sensor 360 installed in the front intake 118 of the body 110, respectively, the difference between the two temperature values is set in a preset temperature range (at the current outside temperature) If it exceeds the range of -2 to 3 ℃ ~ +2 to 3 ℃), it is determined that the heat absorbing function of the upper heat sink 320a of the heat dissipation element 320 is not normal due to reasons such as frost or water vapor condensation, and the electric heating element (600) is operated for a preset time (S19)

At this time, the control unit 500 controls the temperature detection value of the second temperature sensor 340 installed on the upper heat sink 320a of the heat dissipation element 320 and the front intake port of the body 110 in the current mode is a low stage or high short temperature wind mode state. The upper heat sink 320a of the heat dissipation element 320 when the difference between the two temperature values does not exceed a preset temperature range by periodically receiving the temperature sensing values of the third temperature sensor 360 installed in 118, respectively. It is determined that the heat absorption function of the normal state and stops the operation of the electric heating body 600 (S20)

For example, when the user selects the low-stage or high-stage hot air mode, the temperature value detected by the second temperature sensor 340 installed on the upper heat sink 320a of the heat dissipation element 320 is 10° C., and the body 110 When the temperature sensed value of the third temperature sensor 360 installed in the front suction port 118 of the 340), PWM control the power to operate the electric heating element 600 until the temperature value sensed in 8 ~ 9 ℃.

That is, the control unit 500 controls the front of the body 110 so that the temperature of the upper heat sink 320a of the heat dissipation element 320 of the reaction surface S3 of the thermoelectric element 310 smoothly absorbs heat when the outside temperature is zero. Controlled so that it is relatively lower than the outside air temperature of the inlet 118 by about 2-3 ° C. When the outside air temperature is below zero, the outside air temperature is ignored and the upper portion of the heat dissipation element 320 of the reaction surface S3 of the thermoelectric element 310 It is preferable to operate to control the temperature so that dew condensation does not occur on the heat sink 320a.

The reason for performing the temperature deviation control in this way is that when heat is applied to the upper heat sink 320a of the heat dissipation element 320 installed on the reaction surface S3 of the thermoelectric element 310, the working surface of the thermoelectric element 310 ( In S1), it is possible to maximize the heating efficiency by smoothly absorbing heat, and to prevent condensation or water vapor from collecting on the upper heat sink 320a of the heat dissipation element 320 of the reaction surface S3 of the thermoelectric element 310. can

(4) Cold, hot air mode

On the other hand, when the result of the mode determination step (S12) is determined to be a cold or warm air mode, the microprocessor 520 of the control unit 500 firstly controls the opening/closing member 250 located at the front end of the upper heat sink 320b of the heat dissipation element 320 . ) to the open state, and simultaneously drive the first driving motor 220 or the first driving motor 220 and the second driving motor 240 of the blower 200 so that the first blowing fan 210 is externally Air is forcibly sucked in through the rear suction port 116 formed at the rear of the body 110 of the housing 100 to generate wind and sent to the conveying passage formed inside the body 110 (S21)

On the other hand, the microprocessor 520 of the control unit 500 changes the direction of the current entering the thermoelectric element 310 through the forward/reverse switching circuit 530 so that the working surface S1 of the thermoelectric element 310 is downwardly directed toward the reaction surface ( A current in a preset direction is applied to the thermoelectric element 310 so that S3) is directed upward (S22). At this time, the controller 500 controls the preset low or high stage warm air to the voltage and current applied to the thermoelectric element 310. It is desirable to apply at a level corresponding to the mode.

Accordingly, the working surface S1 of the thermoelectric element 310 of the electronic heating unit 300 emits heat while the reaction surface S3 of the thermoelectric element 310 absorbs heat, but under the control of the controller 500 Accordingly, since the opening and closing member 250 located at the front end of the upper heat sink 320b of the heat dissipation element 320 maintains an open state, the wind provided from the blower 200 is the upper portion of the reaction surface S3 of the thermoelectric element 310 . Discharged through the upper heat sink 320b and the second tuyere 114 disposed in the lower heat sink 320a and the first tuyere 112 disposed under the working surface S1 of the thermoelectric element 310 at the same time Since it is discharged through also, the hot air of 50 ~ 70 ℃ heating the wind passing through the lower heat sink 320a of the heat dissipation element 320 finally installed on the working surface S1 of the thermoelectric element 310 is the first air outlet. At the same time exhausted through (112) and absorbed the wind passing through the upper heat sink 320b of the heat dissipation element 320 installed on the reaction surface S3 of the thermoelectric element 310, a cold air of 2 to 10 ° C. 114) can be discharged (S23)

On the other hand, when the current mode is a low stage or a high stage warm air mode, the control unit 500 is a second temperature sensor installed on the upper heat sink 320a of the heat dissipation element 320 installed on the reaction surface S3 of the thermoelectric element 310 ( 340) and the temperature sensed value of the third temperature sensor 360 installed in the front inlet 118 of the body 110, respectively, the difference between the two temperature values is set in a preset temperature range (at the current outside temperature) If it exceeds the range of -2 to 3 ℃ ~ +2 to 3 ℃), it is determined that the heat absorbing function of the upper heat sink 320a of the heat dissipation element 320 is not normal due to reasons such as frost or water vapor condensation, and the electric heating element (600) is operated for a preset time (S24).

At this time, the control unit 500 controls the temperature detection value of the second temperature sensor 340 installed on the upper heat sink 320a of the heat dissipation element 320 and the front intake port of the body 110 in the current mode is a low stage or high short temperature wind mode state. The upper heat sink 320a of the heat dissipation element 320 when the difference between the two temperature values does not exceed a preset temperature range by periodically receiving the temperature sensing values of the third temperature sensor 360 installed in 118, respectively. It is determined that the heat absorption function of the normal state and stops the operation of the electric heating body 600 (S25)

That is, the control unit 500 controls the front of the body 110 so that the temperature of the upper heat sink 320a of the heat dissipation element 320 of the reaction surface S3 of the thermoelectric element 310 smoothly absorbs heat when the outside temperature is zero. Controlled so that it is relatively lower than the outside air temperature of the inlet 118 by about 2-3 ° C. When the outside air temperature is below zero, the outside air temperature is ignored and the upper portion of the heat dissipation element 320 of the reaction surface S3 of the thermoelectric element 310 It is preferable to operate to control the temperature so that dew condensation does not occur on the heat sink 320a.

The embodiments of the present invention disclosed in the above-described specification and drawings are merely provided as specific examples to aid understanding, and are not intended to limit the scope of the present invention. It will be apparent to those of ordinary skill in the art to which the present invention pertains that other modifications based on the technical spirit of the present invention can be implemented in addition to the embodiments disclosed herein.

100: housing 110: body
111: partition wall 112, 114: first and second tuyere
113: tuyere 113a: internal tuyere
113b: external tuyere 115: guide plate
116: rear intake 117: partition wall
118: joint joint 120: handle
200 ; Blower 210: first blowing fan
220: drive motor 230: second blowing fan
300: electronic heating unit 310: thermoelectric element
320: heat dissipation element 320a: lower heat sink
320b: upper heat sink 330,340,350: temperature sensor
400: operation unit 250: opening and closing member
500: control unit 600: electric heating element
700: power supply 800: battery

Claims (7)

The first and second tuyeres 112 and 114 for discharging hot air to the front or discharging hot and cold air at the same time are branched and formed, and an air intake 116 for sucking outside air is formed at the rear, and the wind a housing unit 100 comprising a body 110 formed in a tubular shape for forming a transport passage, and a handle 120 formed at a lower portion of the body 110;
a blower 200 which is installed inside the air intake 116 of the housing 100 and forcibly blows wind by sucking outside air according to a user's operation and sending it to the transfer passage;
An electronic type that is installed in the transfer passage formed inside the housing part 100 so that the acting surface or the reaction surface faces upward or downward, and performs heat generation and heat absorption on the upper surface and the lower surface according to the user's operation. Heating unit 300;
an operation unit 400 installed on one side of the housing unit 100 and configured to select power on/off, hot air mode, cold and hot air mode, and control speed or intensity according to a user's operation;
A control unit 500 installed inside the housing unit 100 and selectively controlling the operation of the blower unit 200 and the electronic heating unit 300 according to a user command through the manipulation unit 400 . ; and
an electric heating body 600 for heating the reaction surface S3 of the electronic heating unit 300 under the control of the control unit 500; includes,
The output end of the first air outlet 112 is integrally formed with the body 110, and the output end of the second air outlet 114 is formed to rotate up and down or left and right. formed hair dryer.
delete According to claim 1,
On the reaction surface (S3) side of the electromagnetic heating part 300, an opening and closing member that selectively opens and closes so that the wind does not pass through the reaction surface (S3) side of the electronic heating part 300 under the control of the control unit 500 ( 250), a hair dryer in which cold and hot air outlets are separately formed.
According to claim 1,
The electronic heating unit 300,
The action surface or reaction surface S3 is installed in the transfer passage formed inside the housing 100 so as to face upward or downward, and heat is generated on the upper surface and the lower surface under the control of the control unit 500 . and a thermoelectric element 310 for performing an endothermic operation;
An upper heat sink 320b that is formed to surround the outside of the thermoelectric element 310 and radiates heat or cold air generated from the thermoelectric element 310 upwards, and a lower heat sink 320a that radiates cold air or heat downwards. a heat dissipation element 320 consisting of;
The heat dissipation element 320 and the second to third temperature sensors 340 and 360 are respectively installed in the front suction port 118 of the body 110 to periodically sense the ambient temperature and transmit it to the control unit 500. Consists of A hair dryer in which cold and hot air outlets are separately formed.
5. The method of claim 4,
The control unit 500,
When the outside air temperature is zero, the temperature of the reaction surface S3 of the thermoelectric element 310 is controlled to be relatively 2 to 3 ° C lower than the outside air temperature of the body 110 so that the heat absorbing action is smooth, and the outside air temperature is A hair dryer with separate cold and hot air outlets, characterized in that it operates to ignore the outside air temperature and control the temperature so that condensation does not occur on the reaction surface (S3) of the thermoelectric element (310) when it is below zero.
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