Infrared hair-styling device

The hair-styling device addresses hair fall and growth issues by using an infrared diode and Coanda effect nozzle with heat management, enhancing styling efficiency and scalp health.

WO2025264193A1PCT designated stage Publication Date: 2025-12-26DEETU CHANYAPIOY
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Patent Information

Application Number
PCT/TH2024/050026
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-06-19
Publication Date
2025-12-26

AI Technical Summary

Technical Problem

Existing hair-styling devices cause hair fall due to heat, irritation, and moisture loss, and lack efficient methods for stimulating hair growth and scalp health.

Method used

A hair-styling device incorporating an infrared diode for blood circulation stimulation, a truncated cone-shaped nozzle creating the Coanda effect, and a heat management system to maintain optimal temperature and airflow for various styling methods without causing damage.

Benefits of technology

Reduces hair fall risks and enhances hair growth by improving styling efficiency with reduced heat and moisture loss, while promoting scalp health through infrared light and anion generation.

✦ Generated by Eureka AI based on patent content.

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Abstract

An infrared hair-styling device comprising a part near the scalp and a body. The part near the scalp comprising an infrared diode for providing infrared light for blood circulation stimulation, which affects hair root growth, and the body is provided with operating units for airflow temperature and speed control for preferred nature of use that includes the temperature control to reduce the chance of hair fall because of irritation and moisture loss. In addition, the infrared hair-styling device according to this invention is composed of a detachable attachment for use in hair styling with no needs for hand or comb in hair curling or drying, avoiding pulling, which is one of the factors contributing to hair fall.
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Description

[0001] INFRARED HAIR-STYLING DEVICE

[0002] Field of the Invention

[0003] Engineering related to infrared electric hair stylers

[0004] Background of the Invention

[0005] Scalp hair is not only a part of the body that functions in protecting the head against the sunlight and heat loss but also helps in personality and confidence boost for each individual and helps express the respective individual. Haircare, therefore, is an essential routine for many people. Hair and hair-related problems found in each individual vary according to the hair structure, scalp condition and hair root. Hair’s main structure consists of the hair shaft, which is a dead cell, extending from the scalp and having a layered structure, namely the cuticle as the outermost thin sheet functioning in prevention of dirtiness from entering the medulla; a next layer called the cortex comprising protein fibres and containing pigments or melanin, which determines the hair colour and also prevent ultraviolet-induced damage; and the innermost layer called the medulla, which is only found in people with healthy hair, comprising protein and lipid, providing hair with strength, elasticity and resistance to schizotrichia, breakage and fall of hair, and also affecting the hair glossiness.

[0006] Another important hair part is the hair root, which is a part embedded under the scalp with blood supply, functioning in hair production. Usually in hair fall, upon old hair root cells being separated from the blood vessel by the push of growing new hair root cells, if the cells are weak or the circulation in the said area cannot supply sufficient nutrients to the cells, the cells can die, potentially leading to hair loss and alopecia.

[0007] The aetiology of weak hair roots may include aging, chemical residues, dermal allergies or irritation, a genetic disease, or even hormonal changes, physical health issues, accumulated fatigue or accumulated stress, as well as personal behaviours, such as shampooing and head scratching. Even hair exposure to heat, such as hot-air hair drying or hair styling using heat, can also result in the problem of hair fall because prolonged scalp exposure to heat can cause dry scalp and irritation, catalysing the hair fall.

[0008] Currently, therapeutic methods for hair fall from various causes have been developed - massage for blood circulation stimulation, stimulation using pharmaceuticals, new hair root transplantation, hormone balancing as well as use of hair-nourishing products comprising extracted natural oils, which contribute to hair strengthening and scalp moisturisation. In addition, there is laser therapy for blood circulation stimulation in the scalp area, resulting in more rapid hair root cell growth and stimulating the formation of new hair root cells.

[0009] In addition, hair-styling apparatus has been designed for efficient operation without causing moisture loss or irritation from intense heat, such as fan shape modification in hair dryers to enable creation of more forceful and farther airflow with no needs to position hair dryers near the head; temperature sensor addition for hot airflow temperature control to avoid overheating; and transformation of heat to Far-infrared wave using ceramic honeycomb in place of wire mesh that not only expedites hair drying but also prevents overheating that can cause scalp moisture loss.

[0010] Dynamic phenomena have also been applied, such as Coanda effect, which is caused by fluid travelling with speed along a smooth surface, resulting in farther travel, unidirectional ambient air travel and fluid turbulence. Application of the Coanda effect to hair- styling devices reduces use of heat in hair styling because air can better penetrate hair and thus carry moisture off hair efficiently, using less heat than conventional hair-styling devices do. In addition, the air turbulence in Coanda effect helps hair to arrange itself and cling to hair-styling attachments, such as curling iron or airflow-distributing nozzle, with no needs for comb in diffusing or making hair cling to them that may cause hair pulling, leading to hair fall.

[0011] After performing foreign patent database searches, prior inventions relating to hair-styling devices that help stimulate hair growth using irradiation were found, namely:

[0012] A Chinese patent, publication number CN211021346U, with the invention title of ‘Infrared magnetic comb that can promote hair growth’ describes an infrared magnetic comb that can promote hair growth, comprising a comb body part and light emitting diodes arranged inside this device. Next to that is a backing, followed by a protective cap. The light emitting diodes move through the tooth backing containing an aperture for allowing the light to pass through.

[0013] A Korean patent, publication number KR100449506B1, with the invention title of ‘Hairbrush protecting against hair fall and stimulating the hair using anions and voltage’ describes a hairbrush with an infrared LED and a generator of atoms with anions for protection against hair’s static energy, for scalp and hair cell stimulation, and for bactericidal and antiparasitic actions on the hair. This electric hairbrush comprising a brush, an operation switch, an adaptor and a socket that can be removed using a skid system for protecting against contaminants around an aperture, which is a light emitting diode exit.

[0014] Also, a Chinese patent, publication number CN204796998U, with the invention title of ‘Multi-purpose beauty comb’ describes a hair beauty-enhancing device comprising a main part of the device or a comb body with an internal space for liquid, a circuit, a vibrating motor (41) mounted inside the main part, and a tube for delivering a liquid agent onto the scalp, playing a role in alopecia treatment; the agent the form of liquid can flow along the tube, transforms into droplets and is discharged to the user’s scalp. Also provided are an infrared generator and an anion generator, which help in hair growth.

[0015] The three patents describe hair-styling devices that are in the form of combs or a brush comprising infrared light emitting diodes for stimulation of hair root growth; the second patent describing incorporation of anions in scalp stimulation, hair growth and bactericidal action on the hair while the third patent describing the components of vibrating motor (41) and drug-discharging part for alopecia treatment.

[0016] In addition, some prior patents in worldwide patent databases relating to air- styling devices that create the Coanda effect were found. These include:

[0017] A Korean patent, publication number KR102581690B1, with the invention title of ‘Multipurpose beauty comb’ describes a nozzle for mounting with a hair dryer, comprising a body and a cylindrical part for air distribution, of which flow direction is divided into three parts determined by an air-vent pipe. Air flows along the pipe and enters the body. Based on discharged airflow, hair drying can be realised in an upheaved condition using the Coanda effect, and the airflow can be directed at hair near the scalp at the same time, hence fast hair drying.

[0018] Also, a Korean patent, publication number KR102610084B 1, with the invention title of ‘Hair curling device’ describes a hair curling device that helps curl the user’s hair evenly using the Coanda effect with a blowing function and enable airflow direction adjustment as preferred for air to circulate to the curved outer surface of a sleeve by rotation using an external force.

[0019] Both patents describe hair- styling devices with the design of a nozzle or a sleeve enabling the Coanda effect to help enable more efficient hair- styling without mentioning hair growth stimulation by creating the Coanda effect at the nozzle or sleeve surface of the hair curling devices. This invention describes the hair- styling device, comprising an infrared diode 23 for blood circulation stimulation for better hair growth and further comprising a nozzle structure creating the Coanda effect that enables hair styling with no risks of moisture loss from the scalp and reduces hair breakage and fall from pulling during hair styling. In addition, the hair-styling device according to this invention is combined with a heat management system, which functions in maintaining temperature levels that do not cause dryness or irritation.

[0020] Summary of the Invention

[0021] The infrared hair- styling device is a development of hair- styling device with the infrared diode 23 to provide the infrared light to stimulate dermal blood circulation that can be used with a variety of hair-styling, such as hair drying and curling. A truncated cone-shaped nozzle and a grille laid along the nozzle are provided, creating the Coanda effect that helps arrange hair and attach it to the nozzle with no needs for hand or comb in curling or drying. It further comprises a commanding system functioning in adjustment for the right heat level and airflow speed used in hair styling or the user-predetermined level.

[0022] The objective of this invention is to improve hair-styling device's efficiency to enable use in a variety of hair-styling methods as a single device; reduce risks of hair fall because of heat, irritation and moisture loss; and re-condition the scalp for hair to grow well.

[0023] Brief Description of the Drawings

[0024] Figure 1 shows one embodiment of the infrared hair-styling device.

[0025] Figure 2 shows one embodiment of components inside the infrared hair-styling device.

[0026] Figure 3 shows one embodiment of operational units inside the infrared hair-styling device.

[0027] Figure 4 shows one embodiment of operation inside the infrared hair-styling device.

[0028] Figure 5 shows one embodiment of types of use of the infrared hair-styling device.

[0029] Detailed Description of the Invention

[0030] The infrared hair-styling device according to this invention is merely demonstrated as compositions and an embodiment of the hair-styling device. The infrared hair-styling device is a design of hair-styling device of which types of use can diversely be modified to enable hair styling without causing irritation or pulling. It can also provide the infrared light to stimulate blood circulation, which has a positive effect on hair growth.

[0031] Figure 1 shows one embodiment of the infrared hair-styling device comprising a body (1) functioning in airflow creation for use in hair-styling as well as airflow speed and temperature control, infrared emission and anion production according to predetermined criteria; hot air is sent to a part near the scalp (2) in the form of a hollow cylinder, which is at an end near the scalp. In addition, the hair- styling device according to this invention comprising an attachment (3) of which one end is provided with a nook or a thread for assembling with the part near the scalp (2) in a detachable manner. The attachment (3) comprising a hollow cylindrical axis (31) of which outer surface is in the form of adjacent longitudinal curves along the attachment (3), provided with gaps between the curves as air passages from inside the hollow cylindrical structure. A longitudinal surface of the axis (31) is covered with a curved sleeve (32) such that it forms a gap between the outer surface of the axis (31) and the inner surface of the sleeve (32), the sleeve (32) functioning in gathering together the hair that wraps around the axis (31). The sleeve (32) and the axis (31) are assembled in a detachable manner.

[0032] According to Figure 2 showing one embodiment of components inside the infrared hairstyling device, the part near the scalp (2) comprising a coil (21) mounted in a manner that allows the edge of the coil (21) to fit with the inner surface of the part near the scalp (2). The coil (21) can be made from metal with a heat convection property for functioning in maintaining air flow temperature used in hair-styling and can be selected from silver alloy, copper alloy, aluminium alloy or combination thereof. In addition, it further comprises an infrared diode-mounting structure (22) of combined material sheets in the form of V-shaped projections. The middle of the infrared diode-mounting structure (22) is provided with an orifice for pulling a wire through for connection of the infrared diode (23) to operating units inside the body (1), and each V-shaped projection of the infrared diode-mounting structure (22) is concave around the edge for allowing fit lock with a bolt inside the part near the scalp (2), the infrared diode (23) mounted at the centre of the infrared diode-mounting structure (22).

[0033] As for the body (1), it comprises a hollow cylindrical housing (10) of which one end is sloped and contains a hollow cylindrical overhang with a diameter less than a diameter of the housing (10), the outer surface of the cylindrical overhang provided with a nook for assembling with the part near the scalp (2). In addition, the hollow part of the housing (10) is a location of operating units for controlling the infrared hair-styling device’s operation as indicated in Figure 3, namely:

[0034] A user interface unit (11) functioning in receipt of command input from the user and displaying the hair-styling device’s operational status for the user. The user interface unit comprising an input unit (111) in the form of any one of press-buttons, touch panel, touch screen or combination thereof, and is mounted in an embedded manner on the outer surface of the housing (10), functioning in receipt of input from the user with selective button press or selective touch of desired input options for modifying the infrared hair-styling device’s operational status, which can be selected from any one of type of use, airflow temperature, airflow speed, infrared emission or combination thereof for transmission to a control unit (12) for use in decision making and commanding to control of other operating units. In addition, the input unit (111) comprises an operation switch in the form of a mechanical switch.

[0035] Current operational status information comprising at least one of type of use, temperature, airflow force or infrared emission as set by the user is displayed through a display unit (112) in the form of any one of monitor, display light colours, sound or combination thereof.

[0036] The control unit (12) is in the form of an electronic circuit functioning in controlling operational status according to the user’s setting, the control unit (12) connected to the user interface unit (11) such that it receives operational status modification information that can be selected from at least one of type of use, airflow temperature, airflow speed and infrared emission for processing and proceeding according to input from the user interface unit (11) and then transmitting real-time operation information that consists of type of use, airflow temperature, airflow speed and infrared emission to the user interface unit (11) for displaying for the user. The control unit (12) at least comprises a memory (120) with saved predetermined information at least consisting of type of use, airflow temperature, airflow speed and infrared emission. As a minimum, the type of use consists of airflow temperature, airflow speed and infrared emission, which vary according to the type of use. Airflow temperature and airflow speed are adjustable in levels. Airflow temperature includes a first temperature, where airflow used in hair-styling is at room temperature; a second temperature in a range of 30-55 degrees Celsius; a third temperature in a range of 55-80 degrees Celsius; and a fourth temperature in a range of 80-105 degrees Celsius. Airflow speed is divided into levels by power, namely a first speed at a range of 300-500 watts, a second speed at a range of 500-700 watts, a third speed at a range of 700-900 watts and a fourth speed at a range of 900-1100 watts. Use of infrared emission is adjustable with infrared light activation or deactivation.

[0037] Every time the input unit (111) receives operational status modification information from the user, a decision unit (121) proceeds by saving the last operational status information at least consisting of any one of type of use, airflow temperature, airflow speed or infrared emission on the memory (120).

[0038] In addition, the control unit (12) further comprises the decision unit (121) functioning in classification of commands received from the user interface unit and transmission of commands in the form of electrical signals to other operating units inside the control unit (12) connected to a power supply (13) for control of supply to other devices, the said operating units being an airflow speed control unit (122), a heat control unit (123), and an infrared emission control unit (124).

[0039] The airflow speed control unit (122) is connected to at least one motor (41) where the said motor (41) is provided with a fan for creation of airflow force used in hair-styling and a motor cap. The airflow speed control unit (122) is connected to the decision unit (121) such that it receives electrical signals from the decision unit (121) for modification of voltage from the power supply (13) before supplying to the motor (41) in order to control rotational speed of the motor (41), and a heating wire (42) is mounted at the cap of the motor (41) using knot fixing, a bolt or association with a connectors, the other side of the heating wire (42) connected to the heat control unit (123) such that it receives electric power from the heat control unit (123) for converting into thermal energy in order to increase temperature of airflow created by the operation of the motor (41). The heat control unit (123) is connected to the decision unit (121) such that it receives electrical signals from the decision unit (121) for modification of voltage from the power supply (13) before supplying to the heating wire (42) to control airflow temperature used in hair styling, and the infrared emission control unit (124) is connected to the infrared diode (23), which is in the part near the scalp (2). The infrared emission control unit (124) receives electrical signals from the decision unit (121) for use in control of supply from the power supply (13) to the infrared diode (23).

[0040] The airflow speed control unit (122), the heat control unit (123) and the infrared emission control unit (124) comprises at least one electrical switch, which can be selected from either transistor or thyristor, or combination thereof. Each electrical switch is connected with a fixed resistor with different resistance for voltage modification by selective blipping so that electric current from the power supply (13) flows through a specified resistor based on commands in the form of electrical signals from the decision unit (121).

[0041] The power supply (13) functions in supplying electric current to other operating units and is provided in the form of either battery or electric wire with a plug for receiving electric current from another power supply system, such as an electrical system used in household, or both, wherein the power supply (13) is connected to the control unit (12) such that it supplies power to the control unit (12), and the control unit (12) can control supply from the power supply (13) to other devices at least consisting of the motor (41), the heating wire (42) and the infrared diode (23) by modification of resistance of a medium in selective power discharge from the power supply (13) to other devices by blipping so that electric current from the power supply (13) flows through a specified resistor.

[0042] In addition, the housing (10) further comprises an anion generator (101), which is connected to the control unit (12) in a simultaneously operating manner, the anion generator (101) functioning in anion generation in the air by causing negative-charged particles for reducing static electricity during hair- styling.

[0043] According to Figure 4 showing one embodiment of operation inside the infrared hairstyling device, it begins by turning on the infrared hair-styling device with press of a button, which is a composition of the input unit (111), and the input unit (111) receives input for operational control from the user. The user is able to change types of use of the infrared hair- styling device by input through the user interface unit (11) in the form of press to select from types of use displayed through the display unit (112), types of use consisting of manual setting, fast hair-styling, automatic temperature adjustment, skin stimulation and scalp stimulation with each type of use provided with different properties. Upon turning on the infrared hair-styling device, the decision unit (121) proceeds by retrieving the latest operational status information for use in commanding in the form of electrical signal for control of supply from the power supply (13) to other devices at least consisting of the motor (41), the heating wire (42) and the infrared diode (23).

[0044] In the event that the latest operational status is not found, the default type of use will be the automatic temperature adjustment, where the decision unit (121) proceeds to retrieve predetermined operational properties of the infrared hair- styling device from the memory (120) and then transmits command in the form of electrical signal to the airflow speed control unit (123) and the heat control unit (122) for determination of airflow speed and temperature used in hair styling based on information on the predetermined properties retrieved from the memory (120), and the decision unit (121) further proceeds by check of duration of voltage supply to the heating wire (42). When time is up, the decision unit (121) transmits a command to the heat control unit

[0045] (123) in the form of an electrical signal for the heat control unit (123) to decrease temperature by modification of voltage supplied to the heating wire (42) and proceeds to check duration in decreasing the temperature. When time is up, the decision unit (121) transmits a command to the heat control unit (123) in the form of an electrical signal for the heat control unit (123) to increase temperature by modification of voltage supplied to the heating wire (42). The right duration in increasing or decreasing the temperature is specified between 3-15 seconds; the right temperature in the temperature increase is the third temperature level in the range of 55-80 degrees Celsius, and the right temperature in the temperature decrease is no more than 50 degrees Celsius, the most preferable being the room temperature.

[0046] Figure 5 showing one embodiment of types of use of the infrared hair-styling device shows the infrared hair-styling device’s operational status modification.

[0047] In the event that the user selects a type of use as manual setting, the user can set the infrared hair-styling device’s operational properties by input of operational status modification in the input unit (111) by pressing to select options displayed by the display unit (112) as at least consisting of any one of airflow temperature, airflow speed, infrared emission or combination thereof. The airflow temperature can be selected from the first temperature, the second temperature, the third temperature and the fourth temperature; and the airflow speed can be selected from the first speed, the second speed, the third speed and the fourth speed. For the infrared emission, the user can select to activate or deactivate infrared light.

[0048] In the event that the user selects a type of use as fast hair styling, automatic temperature adjustment, skin stimulation or scalp stimulation, the decision unit (121) proceeds to retrieve predetermined operational properties of the infrared hair-styling device from the memory (120). In the fast hair styling, airflow temperature is determined at the third temperature, and airflow speed is at the fourth speed. The decision unit (121) further proceeds with operational status check on the infrared emission control unit (124). In the event that the infrared emission control unit

[0049] (124) supplies electric current from the power supply (13) to the infrared diode (23), the decision unit (121) further proceeds by commanding the infrared emission control unit (124) to cut the supply from the power supply (13) to the infrared diode (23). In the event that the user selects a type of use as skin stimulation, the decision unit (121) proceeds to retrieve predetermined operational properties of the infrared hair-styling device from the memory (120) for use in commanding in the form of electrical signals in order to transmit to the airflow speed control unit (122), the heat control unit (123) and the infrared emission control unit (124), setting the airflow temperature at the first temperature at the airflow speed of the first speed, and the decision unit (121) further proceeds with operational status check on the infrared emission control unit (124). In the event that infrared emission control unit (124) does not supply electric current from the power supply (13) to the infrared diode (23), the decision unit (121) further proceeds by commanding the infrared emission control unit (124) to supply electric current from the power supply (13) to the infrared diode (23).

[0050] In the event that the user selects a type of use as scalp stimulation, the decision unit (121) proceeds to retrieve predetermined operational properties of the infrared hair-styling device from the memory (120) for use in commanding in the form of electrical signals in order to transmit to the airflow speed control unit (122), the heat control unit (123) and the infrared emission control unit (124), setting the airflow temperature at the second temperature at the airflow speed of the third speed, and the decision unit (121) further proceeds with operational status check on the infrared emission control unit (124). In the event that the infrared emission control unit (124) does not supply electric current from the power supply (13) to the infrared diode (23), the decision unit (121) further proceeds by commanding the infrared emission control unit (124) to supply electric current from the power supply (13) to the infrared diode (23).

[0051] Any modifications according to this invention may be clearly understood and doable by those ordinarily skilled in the art. The scope of this invention naturally is according to embodiments presented in the appended claims.

[0052] Best Mode of the Invention

[0053] As described under the Detailed Description of the Invention section.

Claims

Claims1. An infrared hair-styling device, of which types of use can be modified, comprising a body (1) that consists of a housing (10) as a location for operating units at least comprising a user interface unit (11) that functions in receiving input from the user and displaying the infrared hair-styling device’s operational status for the user, a control unit (12) that functions in controlling other devices’ operation based on the input received by the user interface unit (11) and a hollow cylindrical part near the scalp (2), wherein it is characterised in that: the housing (10) comprising operating units, including the user interface unit (11) that functions in receiving input from the user and displaying current operational status, comprising an input unit (111) mounted in an embedded manner on the outer surface of the housing (10) and functioning in receiving input from the user through selective button press or selective touch of options to modify the infrared hair-styling device’s operational status, which can be selected from any one of type of use, airflow temperature, airflow speed and infrared emission or combination thereof for transmitting to the control unit (12), and further comprising a display unit (112) functioning in displaying the hair- styling device’s current operational status that comprising at least one of type of use, temperature, airflow force or infrared emission; the control unit (12) functioning in operational status control according to the user’s setting, the control unit (12) connected to the user interface unit (11) such that it receives input on operational status modification in order to process and operate according to the input from the user interface unit (11) and then transmit real-time operational status modification information to the user interface unit (11) to display for the user, the control unit (12) at least comprising a memory (120) with saved pre-determined data at least consisting of type of use, airflow temperature, airflow speed and infrared emission, properties of the type of use at least consisting of airflow temperature, airflow speed and infrared emission; a decision unit (121), functioning in receiving input on operational status modification from the input unit (111) in order to classify and transmit command in the form of electrical signal to operating units functioning in controlling voltage from a power supply (13) that consist of an airflow speed control unit (122) functioning in controlling voltage supplied to motor (41), a heat control unit (123) functioning in controlling voltagesupplied to a heating wire (42), and an infrared emission control unit (124) functioning in controlling voltage supplied to an infrared diode (23); the airflow speed control unit (122) connected to at least one motor (41), wherein the said motor (41) is provided with a fan and a cap, and with mounting of the heating wire (42) at the motor cap using knot fixing, a bolt or association by means of any connectors, the other side of the heating wire connected to the heat control unit (123) such that it receives electric power from the heat control unit (123) for increasing the temperature of airflow created by the motor’s operation, and to the infrared emission control unit (124) connected to the infrared diode (23) located in the part near the scalp (2); the infrared emission control unit (124) receives electrical signal from the decision unit (121) for use in control of supply from the power supply (13) to the infrared diode (23); the power supply (13) functioning in supplying the power to other operating units, provided in the form of either a battery or an electric wire with a plug, or combination thereof, the power supply (13) is connected to the control unit (12) such that it supplies electric current to the control unit (12), and the control unit (12) can control voltage supply from the power supply (13) to other devices at least comprising the motor (41), the heating wire (42) and the infrared diode (23) by selectively modifying a medium’s resistance in power discharge from the power supply (13) to each device through blipping so that the electric current from the power supply (13) flows through a specified fixed resistor, and the part near the scalp (2) consists of a coil (21) mounted in a manner that the edge of the coil (21) is fit attached to the inner surface of the part near the scalp (2), further comprising an infrared diode-mounting structure (22) of combined material sheets in the form of V-shaped projections, the middle of the infrared diode-mounting structure (22) provided with an orifice for pulling a wire through in order to connect the infrared diode (23) to an operating unit inside the body (1), and each notch of the infrared diode-mounting structure (22) is concave around the edge for fit locking with a bolt inside the part near the scalp (2), the infrared diode (23) is mounted at the centre of the infrared diode-mounting structure (22).

2. The infrared hair-styling device according to claim 1, wherein the memory (120) further operates by saving operational status data at least comprising any one of type of use,airflow temperature, airflow speed or infrared emission upon the input unit (111) receiving operational status modification data from the user.

3. The infrared hair-styling device according to claim 2, wherein the memory (120) further cooperates with the decision unit (121) in retrieving saved last operational status data for use in commanding in the form of electrical signal for controlling the supply from the power supply (13) to other devices that at least consist of the motor (41), the heating wire (42) and the infrared diode (23).

4. The infrared hair-styling device according to claim 1, wherein the airflow speed control unit (122), the heat control unit (123) and the infrared emission control unit (124) comprising at least one electrical switch; each of which is connected with a fixed resistor with different resistance for modifying the voltage by selective blipping so that electric current from the power supply (13) flows through a specified resistor.

5. The infrared hair-styling device according to claim 4, wherein the electrical switch can be selected from either a transistor or a thyristor, or combination thereof.

6. The infrared hair-styling device according to claim 1, wherein the coil (21) inside the part near the scalp can be made from a metal with a good heat convection property for functioning in maintaining airflow temperature used in hair styling, and can be selected from silver alloy, copper alloy, aluminium alloy or combination thereof.

7. The infrared hair- styling device according to claim 1, wherein the part near the scalp (2) is provided with a nook or a thread for assembling with an attachment (3) in a detachable manner, the attachment (3) comprising a hollow cylindrical axis (31) of which outer surface is in the form of adjacent longitudinal curves with gaps between the curves as air passages from inside the hollow cylinder structure, where a longitudinal surface of the axis (31) is covered with a curved sleeve (32) in a manner that forms a gap between the outer surface of the axis (31) and the inner surface of the sleeve (32), the sleeve and the axis (31) assembled in a detachable manner.

8. The infrared hair-styling device according to claim 1, wherein the housing (10) further comprising an anion generator (101), which is connected to a control unit (12) such that they operate simultaneously.

Citation Information

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