KR20210025194A - Hairdryer with separate cold and hot air blowers - Google Patents

Abstract

The present invention relates to a hair dryer with separate cold and hot air blowholes, comprising: a housing unit (100); a blowing unit (200); an electromagnetic heating unit (300); an operating unit (400); a controlling unit (500); and an electromagnetic heating body (600). The housing unit (100) includes a body (110) and a handle (120). The body (110) forms first and second blowholes (112, 114) to be branched to discharge hot air or simultaneously discharge hot and cold air to a front side, forms an air intake unit (116) for sucking external air in a back side, and is formed in a tube shape to form a transport path of wind inside. The handle (120) is formed in a lower part of the body (110). The blowing unit (200) is installed inside the air intake unit (116) of the housing unit (100), forcibly creates the wind by sucking the external air depending on an operation of a user, and transmits the wind to the transport path. The electromagnetic heating unit (300) allows an action surface or a reaction surface to be installed toward an upper or lower direction in the transport path formed inside the housing (100), and performs heat and heat absorption operations for an upper surface and a lower surface depending on the operation of the user. The operating unit (400) is installed on one side of the housing unit (100), and controls power on/off, a hot air mode, selection of a cold and hot air mode, and speed or intensity depending on the operation of the user. The controlling unit (500) is installed inside the housing (100), and allows the user to selectively control operations of the blowing unit (200) and the electromagnetic heating unit (300) depending on an operation command through the operating unit (400). The electromagnetic heating body (600) heats the reaction surface (S3) of the electromagnetic heating unit (300) depending on control of the controlling unit (500). According to the present invention, product competitiveness is further improved.

Description

Hairdryer 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 cooling air blower and a hot air blower are separately formed in a body of the hair dryer.

In general, hair dryers are household appliances that inhale air from the outside by a fan that rotates together with a motor and then discharge it with cool air or heat it to discharge it with warm air. It is mainly used when drying wet hair or fixing a hair style. Is used.

These hair dryers have a stick shape or a shape. The stick-shaped hair dryer is for drying or cleaning hair while holding the body of the hair dryer by hand, and is suitable for the user to dry or clean their own hair. In addition, the a-shaped hair dryer has a handle and a body that is bent by 90 degrees, and is suitable for cleaning other people's hair or other items.

However, since such a general hair dryer includes a motor and a heater coil to heat air, not only a user may be exposed to electromagnetic waves, but also vibration and noise are greatly generated. In addition, temperature responsiveness (immediate cooling or heating) is low, and since there is no simultaneous cooling and heating function, it is very difficult to control the temperature around room temperature. In addition, since components such as a motor and a heater coil, 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 Publication No. 10-2012-0024335 (March 14, 2012) includes a temperature controller F and a heater A to supply air to the cooler at a constant temperature. And, the air passing through the 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 the heater B (Peltier) built-in cooling hair dryer. Has been.

Such prior art uses the'Peltier effect' that heats one side and cools the other side when electricity flows through semiconductors of different properties, which is an electronic cooling and heating component that controls temperature by supplying electricity to a semiconductor device. Therefore, it is a component that is attracting much attention as an eco-friendly component that does not use Freon gas, which is the cause of the ozone layer destruction.

However, this prior art is not only complicated in structure because it uses two heaters, but also has a limitation in that cold air and hot air cannot be used at the same time according to the needs of the user 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 was conceived to overcome 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 the season while using a thermoelectric element to selectively multi-stage high temperature wind according to the user's operation. It is to provide a hair dryer in which a cold air and a hot air blower are formed separately.

Another object of the present invention is to provide a hair dryer having separate cold air and hot air vents capable of providing both hot air and cold air at the same time for fixing the hair style when using hot air to create a finished hair styling.

In the hair dryer having separate cold air and hot air air outlets for achieving the object of the present invention, the first and second air outlets 112 and 114 for discharging hot air or simultaneously discharging hot air and cold air are formed by branching, An air inlet 116 for inhaling external air is formed at the rear, a body 110 formed in a tubular shape for forming a conveying passage for wind therein, and a handle 120 formed at the lower portion of the body 110 A housing unit 100 consisting of; A blower 200 installed inside the air intake 116 of the housing 100 and forcibly generating wind by inhaling external air according to a user's manipulation and sending it to the transfer passage; Electronic heat generation is installed so that the action surface or the reaction surface faces upward or downward in the transfer passage formed inside the housing 100 to perform heat generation and heat absorption on the upper surface and the lower surface according to the user's manipulation. Unit 300; An operation unit 400 installed on one side of the housing unit 100 and configured to select power on/off, a warm air mode, a cold or hot air mode, and adjust a 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 air 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 element 600 for heating the reaction surface (S3) of the electronic heating unit 300 under the control of the control unit 500.

In addition, in the hair dryer having separate cooling and warm air vents for achieving the object of the present invention, an inner air vent 113a is formed in the center of the circular air vent 113 in the front, and an outer ventilator is formed on the outer circumferential surface of the inner air vent 113a. (113b) is formed, and an air intake port 116 for inhaling external air is formed at the rear, and the hot air is discharged through the internal ventilation port 113a, and the cold air is conveyed so that it is discharged through the external ventilation port 113b. A housing consisting of a body 110 formed in a tubular shape for forming a path for conveying wind, and a handle 120 formed under the body 110 with a guide diaphragm 115 forming a path. Unit 100; A blower 200 installed inside the air intake 116 of the housing 100 and forcibly generating wind by inhaling external air according to a user's manipulation and sending it to the transfer passage; Electronic heat generation is installed so that the action surface or the reaction surface faces upward or downward in the transfer passage formed inside the housing 100 to perform heat generation and heat absorption on the upper surface and the lower surface according to the user's manipulation. Unit 300; An operation unit 400 installed on one side of the housing unit 100 and configured to select power on/off, a warm air mode, a cold or hot air mode, and adjust a 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 200 and the electronic heating unit 300 by a user according to an operation command through the operation unit 400; It characterized in that it comprises an electric heating element 600 for heating the reaction surface (S3) of the electronic heating unit 300 under the control of the control unit 500.

The hair dryer in which the cold and hot air vents 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 multi-stage high-temperature air according to the user's operation by reflecting the ambient temperature that changes according to the change of the season, so it is relatively heated compared to conventional products using a heater coil or thermoelectric element. You can improve your skills.

In addition, when hot air is used to create the finished hair styling, both hot air and cold air can be provided at the same time to fix the hair style, making the finished styling efficient without using additional tools or equipment while creating a hair style. Can be fixed.

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

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

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

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

Referring to FIGS. 1 to 2, a hair dryer having separate cold air and hot air air outlets according to a preferred embodiment of the present invention includes first and second air outlets 112 and 114 for discharging hot air in the front or simultaneously discharging hot air and cold air. ) Is formed by branching, and an air inlet 116 for inhaling external air is formed at the rear, and a body 110 formed in a tubular shape for forming a conveying path for wind therein, and a lower portion of the body 110 It is installed inside the housing unit 100 composed of the handle 120 formed in the and the air inlet 116 of the housing unit 100, and forcibly generates wind by inhaling external air according to the user's manipulation The air blower 200 provided with the driving motor 220 for driving the first blowing fan 210 and the first blowing fan 210 to be sent to the air blower 200, and an action surface (S1) on the transfer passage formed inside the housing 100 ) Or the reaction surface (S3) is installed to face the lower or upper direction, the electronic heating unit 300 and the housing unit 100 to perform heat and heat absorption on the upper surface and the lower surface according to the user's manipulation It is installed on one side of, and is installed inside the housing 100 and an operation unit 400 for selecting on/off power, selecting a warm air mode, a hot air mode, and adjusting the speed or intensity according to the user's operation, The control unit 500 for 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 the user, and the electronic heating unit 300 according to the control of the control unit 500 ) For heating the reaction surface (S3) of the electric heating element 600, and supplying DC power to the electronic heating unit 300 under the control of the control unit 500, or for heating the electric heating element 600 It consists of a power supply unit 700 that supplies 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 preferable that it is formed to rotate.

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

In a preferred embodiment of the present invention, as shown in FIG. 2, the opening/closing member 250 is selectively selected from the reaction surface S3 of the thermoelectric element 310 of the electronic heating unit 300 according to the control of the controller 500. As an element that can prevent wind from passing through the heat dissipation element 320 positioned above, an electronic solenoid valve or a relay may be used.

In addition, it is preferable that the cooling air blower 114 among the first and second air vents 112 and 114 is formed in a structure in which a portion of the air blower 114 is rotated in the vertical or horizontal direction with respect to the housing 100 as shown in FIG. 2.

In addition, the electronic 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. , The thermoelectric element 310 performing heat generation and heat absorption on the upper and lower surfaces under the control of the control unit 500, and formed to surround the outside of the thermoelectric element 310, generated in the thermoelectric element 310 Heat dissipation consisting of an upper heat sink 320b that discharges hot or cold air to the top and a lower heat sink 320a that discharges cold or heat to the bottom

It is installed in the front suction port 118 of the body 110 so as to supply outside air to the element 320, the lower heat sink 320a, the upper heat sink 320b, and the heat radiation element 320, It consists of first to third temperature sensors 330, 340, and 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 semi-equal element, a Peltier element, a temperature module, and a TEC, and is a semiconductor element that allows cooling, heating, and temperature control freely by direct current. (1) Temperature difference occurs on both sides of the device by passing a direct current to the device, (2) heat absorption occurs on the low temperature side and heat generation occurs on the high temperature side, pushing heat from the low temperature side to the high temperature side of the thermoelectric device. That is, it acts as a heat pump, and (3) changing the direction of the heat pumped by simply changing the polarity of the current and also changing the size of the current, it is possible to change the amount of heat to be pumped.

In addition, the blower 200, as shown in Figure 2, is installed inside the housing unit 100, in accordance with the user's operation, by inhaling the external air forcibly generating wind, the electronic heating unit installed in the transfer passage A first blowing fan 210 sent to the lower heat sink 320a of the heat dissipating element 320 of 300, and a first motor 220 driving the first blowing fan 210 under the control of the controller 500 Wow, a second blowing fan 230 sent to the upper heat dissipation plate 320b of the heat dissipating element 320 of the electronic heating unit 300 installed in the transfer passage by inhaling external air according to the user's manipulation and forcibly generating wind, 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, in the case where one blowing fan 210 is provided in the blowing part 200, the external air is the lower heat sink 320a located under the working surface S1 of the thermoelectric element 310 of the electronic heating part 300. It is preferable that the overheating element 310 is simultaneously transmitted to the upper heat dissipation plate 320b located on the reaction surface S3 of the thermoelectric element 310.

However, when two first and second blowing fans 210 and 230 are respectively provided in the blowing part 200, the first blowing fan 210 is a lower part located under the action surface S1 of the thermoelectric element 310. It is preferable that the wind is sent to the heat sink 320a, and the second blower fan 230 is configured to send 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 dissipating plate 320a of the heat dissipating element 320 in order to prevent leakage of wind provided from each of the blowing fans 210 and 230 It is preferable that the second partition wall 117 for independently transmitting to the upper heat sink 320b of the heat dissipation element 320 is integrally formed with the body 110.

Here, the control unit 500 is an electric heating element so that the ambient temperature of the upper heat dissipation plate 320b of the heat dissipation element 320 of the electronic heating unit 300 is relatively lower than the external temperature and relatively higher than the image temperature. It is preferable to control the operation of 600), and a detailed description thereof will be described later in the operation of the invention.

As shown in FIG. 4, the controller 500 converts the temperature value detected in the form of an analog signal into a digital signal by the control unit 400 and the first to third temperature sensors 330, 340, and 360. In the D converter 510, the forward and reverse conversion circuit 530 for converting the direction of the current entering the thermoelectric element 310, and the first to third temperature sensing sensors 330, 340, 360 according to the temperature value set in the operation unit 400 It consists of a microprocessor 520 that controls the direction of the output current of the forward/reverse conversion 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 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 to provide, a high-stage hot air switch that provides warm air of a relatively higher temperature than the low-stage hot air, and a cold/hot air switch that simultaneously provides hot 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 with a selective combination of at least one button switch, a sliding switch, or a rotary switch.

In addition, the electric heating element 600 can 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 seed heater, a halogen heater, an infrared heater, a fin heater, a ceramic band heater, a flange heater, etc. It can be used, and all heating elements using electricity are applicable.

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

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

In the hair dryer having separate cold air and hot air air outlets according to a second preferred embodiment of the present invention, as shown in FIGS. 6 and 7, an internal air outlet 113a is formed in the center of the circular air outlet 113 in the front. , An external ventilation opening (113b) is formed on the outer circumferential surface of the internal ventilation opening (113a), and an air inlet (116) for inhaling external air is formed at the rear, and the hot air is discharged through the internal ventilation opening (113a), and the cold air is external A guide diaphragm 115 is formed to divide the conveying path of the wind so as to be discharged through the air outlet 113b, and the body 110 formed in a tubular shape for forming the conveying path of the wind therein, and the lower part of the body 110 It is installed inside the housing unit 100 composed of the handle 120 formed in the and the air inlet 116 of the housing unit 100, and forcibly generates wind by inhaling external air according to the user's operation. The air blower 200 provided with the driving motor 220 for driving the first blowing fan 210 and the first blowing fan 210 to be sent to the air blower 200, and an action surface (S1) on the transfer passage formed inside the housing 100 ) Or the reaction surface (S3) is installed to face the lower or upper direction, the electronic heating unit 300 and the housing unit 100 to perform heat and heat absorption on the upper surface and the lower surface according to the user's manipulation It is installed on one side of, and is installed inside the housing 100 and an operation unit 400 for variably adjusting the power and selection and intensity of power on/off, hot air mode, and cold/hot air mode according to the user's operation, The control unit 500 for 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 the user, and the electronic heating unit 300 according to the control of the control unit 500 Electric heating element 600 for heating the reaction surface (S3) of ), and supplying DC power to the electronic heating unit 300 or supplying power to the electric heating element 600 under the control of the control unit 500 It consists of a power supply unit 700.

The second preferred embodiment of the present invention has the same configuration and operation as the first preferred embodiment of the present invention, but the internal structure of the air vent 113 formed in front of the body 110 of the housing 100 is a guide diaphragm ( 115) is divided into an inner ventilator (113a) and an outer ventilator (113b). In terms of external appearance, it is the same as a conventional hair dryer, but when using hot air to create a finished hair styling according to the present invention, it provides both hot and cold air. ,It is in the point that the warm air mode can be executed, and the remaining components and operations are the same.

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

In addition, although the cold air may be discharged through the entire external air vents 113b, it may be possible to form an internal structure such that only the upper portion of the external air vents 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 inner ventilation opening 113a and the external ventilation opening 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, in the cold/hot air mode, the first air vent 112 for discharging the hot air is located at the lower side, and the second air vent 114 for discharging the cold air is formed to be located at the upper side. While the hair styling is trimmed, the styling can be fixed with the cold air discharged from the top of the warm air, but in the second preferred embodiment of the present invention, the first air vent 112 for discharging the hot air in the cold or hot air mode is located in the middle. , The second air outlet 114 for discharging the cold air is formed to be located outside the first air outlet 112 so that the styling can be fixed with the cold air discharged from the outside of the hot air while styling the hair with warm air. .

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

(1) Initial state setting

In order for the user to use the hair dryer according to the present invention, in the case of a wired product, the power supply unit 700 connects the drawn electric cord to the power outlet, and in the case of a wireless product, the battery provided in the power supply unit 700 is fixed. When the on/off switch of the control unit 400 is turned to “on” while charging for a period of time, the control unit 500 determines whether there is any abnormality in the initial state of the product, and when it is determined as a normal state, the outer surface of the housing 100 Indicate that it is in a normal state using the status indicator mounted on

(2) Operation mode setting

If the current state is determined to be a normal state, the user manipulates the mode switch 420 of the operation unit 400 to provide a preset range of warm air. One of the desired modes is selected from (2) a high-end warm air mode that provides warm air, and (3) a cold, warm air mode that simultaneously provides the high-end warm air and cold air in a preset range (S11).

At this time, the microprocessor 520 of the control unit 500 determines which mode of the current mode selected by the user is a low stage warm air mode, a high stage warm air mode, and a cold or hot air mode (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 air blower 200 to operate the first blowing fan. (210) This external air is forcibly sucked through the rear suction port 116 formed at the rear of the body 110 of the housing 100 to generate wind and sent it to the transfer path 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 to the lower direction and the reaction surface (S3) is set to the upper direction, the microprocessor 520 of the control unit 500 is a forward and reverse switching circuit. Through 530, the direction of the current entering the thermoelectric element 310 is determined so that the working surface S1 of the thermoelectric element 310 is directed downward, and the reaction surface S3 is directed upward. At this time, it is preferable that the controller 500 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 and the reaction surface S3 of the thermoelectric element 310 absorbs heat, but the control of the control unit 500 Accordingly, since the opening and closing member 250 located in front of the upper heat sink 320b of the heat dissipation element 320 maintains a closed state, the wind provided from the blower 200 is the upper part of the reaction surface S3 of the thermoelectric element 310 The upper heat dissipation plate 320b disposed at the top passes through only the lower heat dissipation plate 320a disposed under the working surface S1 of the thermoelectric element 310 and is discharged through the first air outlet 112, so finally Warm air of 50 to 60° C. heated by heating the wind passing through the lower heat sink 320a of the heat radiating element 320 installed on the working surface S1 of the thermoelectric element 310 may be discharged through the first ventilation port 112 (S15)

(3) High-end 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 operate the first blowing fan. (210) This external air is forcibly sucked through the rear suction port 116 formed at the rear of the body 110 of the housing 100 to generate wind and sent it to the transfer path formed inside the body 110 (S16)

On the other hand, the microprocessor 520 of the control unit 500 controls the direction of the current entering the thermoelectric element 310 through the forward/reverse conversion circuit 530 so that the action surface S1 of the thermoelectric element 310 moves downward. The current in a preset direction is applied to the thermoelectric element 310 so that S3) is directed upward (S17). At this time, the controller 500 applies the voltage and current applied to the thermoelectric element 310 to the preset high-end warm air mode. It is desirable to apply at the corresponding level.

Accordingly, the working surface S1 of the thermoelectric element 310 of the electronic heating unit 300 emits heat and the reaction surface S3 of the thermoelectric element 310 absorbs heat, but the control of the control unit 500 Accordingly, since the opening and closing member 250 located in front of the upper heat sink 320b of the heat dissipation element 320 maintains a closed state, the wind provided from the blower 200 is the upper part of the reaction surface S3 of the thermoelectric element 310 The upper heat dissipation plate 320b disposed at the top passes through only the lower heat dissipation plate 320a disposed under the working surface S1 of the thermoelectric element 310 and is discharged through the first air outlet 112, so finally Warm air of 60 to 70° C. heated by the wind passing through the lower heat sink 320a of the heat radiating element 320 installed on the working surface S1 of the thermoelectric element 310 may be discharged through the first ventilation port 112 (S18)

On the other hand, when the current mode is a low-stage or high-stage warm air mode, the control unit 500 is a second temperature sensor installed on the upper heat dissipation plate 320a of the heat dissipation element 320 installed on the reaction surface S3 of the thermoelectric element 310 ( By receiving the temperature detection value of 340 and the temperature detection value of the third temperature sensor 360 installed in the front inlet 118 of the body 110, the difference between the two temperature values is set in a preset temperature range (at the current outside temperature). -2~3℃ ~ +2~3℃ range), the heat absorbing function of the upper heat dissipation plate 320a of the heat dissipation element 320 is judged to be abnormal due to reasons such as frost or condensation of water vapor, and the electric heating element (600) is operated for a preset time (S19)

At this time, the control unit 500 is a temperature sensing value of the second temperature sensing sensor 340 installed on the upper heat sink 320a of the heat dissipating element 320 and the front suction port of the body 110 in the current mode in a low or high temperature wind mode. When the temperature detection value of the third temperature sensor 360 installed in 118 is periodically received, and the difference between the two temperature values does not exceed a preset temperature range, the upper heat dissipation plate 320a of the heat dissipation element 320 It is determined that the heat absorbing function is in a normal state, and the operation of the electric heating element 600 is stopped (S20).

For example, when the user selects the low end or high end hot air mode, the temperature value sensed 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 sensing value of the third temperature sensing sensor 360 installed in the front suction port 118 of is 10°C, the control unit 500 is a second temperature sensing sensor installed on the upper heat sink 320a of the heat dissipation element 320 ( The power is PWM-controlled to operate the electric heating element 600 until the temperature value sensed by 340) reaches 8 to 9°C.

That is, when the outside air temperature is an image, the controller 500 is 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 is smooth. The upper part of the heat dissipation element 320 of the reaction surface (S3) of the thermoelectric element 310 is controlled to be relatively 2~3℃ lower than the outside temperature of the inlet 118, and when the outside temperature is below zero, the outside temperature is ignored. It is preferable to operate to control the temperature so that 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 dissipation plate 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), heat absorption can be smoothly performed to maximize heating efficiency, and condensation or collection of water vapor generated on the upper heat sink 320a of the heat dissipation element 320 of the reaction surface S3 of the thermoelectric element 310 can be prevented. I can.

(4) Cold and hot air mode

On the other hand, when the result of the mode determination step (S12) is determined to be a cold or hot air mode, the microprocessor 520 of the control unit 500 may first determine the opening/closing member 250 located at the front end of the upper radiating plate 320b of the radiating 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 external Air is forcibly sucked in through the rear inlet 116 formed at the rear of the body 110 of the housing 100 to generate wind and sent to the transfer path formed inside the body 110 (S21)

On the other hand, the microprocessor 520 of the control unit 500 controls the direction of the current entering the thermoelectric element 310 through the forward/reverse conversion circuit 530 so that the action surface S1 of the thermoelectric element 310 moves downward. A current in a preset direction is applied to the thermoelectric element 310 so that S3) is directed upward (S22). At this time, the control unit 500 controls the voltage and current applied to the thermoelectric element 310 to a preset low-stage or high-stage warm air. 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 and the reaction surface S3 of the thermoelectric element 310 absorbs heat, but the control of the control unit 500 Accordingly, since the opening and closing member 250 located in front of the upper heat sink 320b of the heat dissipation element 320 remains open, the wind provided from the blower 200 is the upper part of the reaction surface S3 of the thermoelectric element 310 The lower heat dissipation plate 320a and the first air vent 112 disposed under the working surface S1 of the thermoelectric element 310 while being discharged through the upper heat dissipation plate 320b and the second air vent 114 disposed in the Since it is discharged through the road, the warm air of 50 to 70°C, which heats 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, is finally delivered to the first air outlet. At the same time, the cool air of 2 to 10° C. that absorbs the wind passing through the upper heat dissipation plate 320b of the heat dissipation element 320 installed on the reaction surface S3 of the thermoelectric element 310 at the same time is discharged through the second air outlet ( 114) can be discharged through (S23)

On the other hand, when the current mode is a low-stage or high-stage warm air mode, the control unit 500 is a second temperature sensor installed on the upper heat dissipation plate 320a of the heat dissipation element 320 installed on the reaction surface S3 of the thermoelectric element 310 ( By receiving the temperature detection value of 340 and the temperature detection value of the third temperature sensor 360 installed in the front inlet 118 of the body 110, the difference between the two temperature values is set in the preset temperature range (at the current outside temperature). -2~3℃ ~ +2~3℃ range), the heat absorbing function of the upper heat dissipation plate 320a of the heat dissipation element 320 is judged to be abnormal due to reasons such as frost or condensation of water vapor, and the electric heating element (600) is operated for a preset time (S24).

At this time, the control unit 500 is a temperature sensing value of the second temperature sensing sensor 340 installed on the upper heat sink 320a of the heat dissipating element 320 and the front suction port of the body 110 in the current mode in a low or high temperature wind mode. When the temperature detection value of the third temperature sensor 360 installed in 118 is periodically received, and the difference between the two temperature values does not exceed a preset temperature range, the upper heat dissipation plate 320a of the heat dissipation element 320 It is determined that the heat absorbing function is in a normal state, and the operation of the electric heating element 600 is stopped (S25).

That is, when the outside air temperature is an image, the controller 500 is 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 is smooth. The upper part of the heat dissipation element 320 of the reaction surface (S3) of the thermoelectric element 310 is controlled to be relatively 2~3℃ lower than the outside temperature of the inlet 118, and when the outside air temperature is below zero, the outside temperature is ignored. It is preferable to operate to control the temperature so that condensation does not occur on the heat sink 320a.

The embodiments of the present invention disclosed in the specification and drawings described above are merely specific examples to aid understanding, and are not intended to limit the scope of the present invention. In addition to the embodiments disclosed herein, it is apparent to those of ordinary skill in the art that other modifications based on the technical idea of the present invention may be implemented.

100: housing unit 110: body
111: partition walls 112, 114: first and second air outlets
113: air outlet 113a: internal air outlet
113b: external air outlet 115: guide plate
116: rear inlet 117: partition wall
118: joint joint 120: handle
200; Blower 210: first blower 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 unit 800: battery

Claims (7)

The first and second air vents 112 and 114 for discharging the hot air in the front or at the same time discharging the hot air and the cold air are formed by branching, and an air inlet 116 for inhaling external air is formed in the rear. A housing portion 100 consisting of a body 110 formed in a tubular shape for forming a conveyance passage, and a handle 120 formed at a lower portion of the body 110;
A blower 200 installed inside the air intake 116 of the housing 100 and forcibly generating wind by inhaling external air according to a user's manipulation and sending it to the transfer passage;
Electronic heat generation is installed so that the action surface or the reaction surface faces upward or downward in the transfer passage formed inside the housing 100 to perform heat generation and heat absorption on the upper surface and the lower surface according to the user's manipulation. Unit 300;
An operation unit 400 installed on one side of the housing unit 100 and configured to select power on/off, a warm air mode, a cold or hot air mode, and adjust a 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 air blower 200 and the electronic heating unit 300 according to an operation command through the operation unit 400 by a user ;
A hair dryer having separate cold and hot air vents, characterized in that it comprises an electric heating element 600 for heating the reaction surface S3 of the electronic heating unit 300 under the control of the control unit 500 .
The method of claim 1,
The output end of the first air outlet 112 is formed integrally with the body 110, and the output end of the second air outlet 114 is formed to rotate in a vertical or horizontal direction. Formed hair dryer.
The method of claim 2,
An opening/closing member selectively opening and closing the reaction surface S3 side of the electronic heating unit 300 so that wind does not pass through the reaction surface S3 side of the electronic heating unit 300 under the control of the control unit 500 ( 250) a hair dryer having separate cold and hot air vents, characterized in that it is provided.
The method of claim 1,
The electronic heating unit 300,
The action surface or the reaction surface (S3) is installed to face the upper or lower direction in the transfer passage formed inside the housing 100, and generates heat to the upper surface and the lower surface under the control of the controller 500. A thermoelectric element 310 for performing a heat absorption operation;
An upper heat dissipation plate 320b formed to surround the outside of the thermoelectric element 310 to emit heat or cool air generated from the thermoelectric element 310 to an upper portion, and a lower heat dissipation plate 320a that discharges cold air or heat to the lower portion A heat dissipation element 320 consisting of;
Consisting of second to third temperature sensing sensors 340 and 360 respectively installed at the heat dissipation element 320 and the front suction port 118 of the body 110, periodically sensing the ambient temperature and transmitting it to the control unit 500 A hair dryer having separate cold air and hot air air outlets, characterized in that it is.
The method of claim 1,
The control unit 500,
When the outside temperature is an image, the temperature of the reaction surface (S3) of the thermoelectric element 310 is controlled to be relatively 2~3°C lower than the outside temperature of the body 110 so that the endothermic action is smooth, and the outside temperature When is below zero, the outside air temperature is ignored and the temperature is controlled so that condensation does not occur on the reaction surface (S3) of the thermoelectric element (310).
In the front, an internal air vent (113a) is formed in the center of the circular air vent (113), an external air vent (113b) is formed on the outer circumferential surface of the inner air vent (113a), and an air inlet (116) for inhaling external air is formed at the rear. It is formed, and a guide diaphragm 115 is formed to divide the wind transport path so that the warm air is discharged through the internal ventilation opening 113a, and the cold air is discharged through the external ventilation opening 113b, and a wind transport path is formed therein. A housing portion 100 consisting of a body 110 formed in a tubular shape and a handle 120 formed at a lower portion of the body 110;
A blower 200 installed inside the air intake 116 of the housing 100 and forcibly generating wind by inhaling external air according to a user's manipulation and sending it to the transfer passage;
Electronic heat generation is installed so that the action surface or the reaction surface faces upward or downward in the transfer passage formed inside the housing 100 to perform heat generation and heat absorption on the upper surface and the lower surface according to the user's manipulation. Unit 300;
An operation unit 400 installed on one side of the housing unit 100 and configured to select power on/off, a warm air mode, a cold or hot air mode, and adjust a 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 air blower 200 and the electronic heating unit 300 according to an operation command through the operation unit 400 by a user ;
A hair dryer having separate cold and hot air vents, characterized in that it comprises an electric heating element 600 for heating the reaction surface S3 of the electronic heating unit 300 under the control of the control unit 500 .
The method of claim 6,
The size or area of the internal air vents 113a has an area of 80 to 90% of the total air vents 113, and the size or area of the external air vents 113b is an area of 10 to 20% of the total air vents 113 A hair dryer having separate cold and hot air vents, characterized in that it is formed to have a.

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