KR100995193B1 - Integral heating device for hair iron and method of manufacturing the same - Google Patents

Abstract

PURPOSE: An integrated heater for a hair iron and a manufacturing method thereof are provided, which can improve durability of an apparatus and provide uniform thermal efficiency. CONSTITUTION: An integrated heater for a hair iron comprises: a plate portion which comes into contact with hair and provides heat; a pair of sidewall parts which are perpendicularly projected in the longitudinal direction of the plate portion; a hot plate(310) which includes a pair of projections; a heating unit(330) in which a contact terminal for connection to a power cord is formed; a heat conduction resin layer(320) offering the adhesive force to the heating unit; and a fixed support plate(340) which supports to prevent separation of the heating unit.

Description

Integral heating device for hair iron and manufacturing method thereof {INTEGRAL HEATING DEVICE FOR HAIR IRON AND METHOD OF MANUFACTURING THE SAME}

The present invention relates to an integrated heating device for hair iron and a method for manufacturing the same, and more particularly, to an integrated heating device for hair iron and a method for manufacturing the same, the structure of which is simple and heat loss is minimized.

In general, a hair iron that heats the hair to trim the hair such as a wave (straight), straight (curl), etc. in a hair shop such as a beauty salon or a barber shop, the hair iron Various proposals have been made in various forms.

1 is a perspective view showing an example of a conventional hair iron. Referring to this, the hair iron includes a lower case 10, an upper case 20, a lower heat sink 30, and an upper heat sink 40.

More specifically, the lower case 10 and the upper case 20 is hinged, the lower case 10 is a lower grill portion 11 to be mounted by hand, and a lower heater (not shown) built-in The heating section 12 is integrally injection-molded.

In addition, the lower heat dissipation plate 30 is provided at the distal end of the lower case 10 so as to flow in accordance with the amount of hair and apply heat to the hair while being in surface contact with the hair.

In addition, the upper case 20 is assembled with the lower case 10, the upper grill portion 21, and the upper heating portion 22 in which the upper heater (not shown) is integrally injection molded.

In addition, the upper heat dissipation plate 40 is provided in the front end portion of the upper case 20 to flow in accordance with the amount of hair to apply heat to the hair while being in surface contact with the hair. Here, the lower heat dissipation plate 30 and the upper heat dissipation plate 40 may have a triangular shape, a circular shape, a semicircle shape, and other various shapes in addition to the flat plate shape.

Hair iron as described above is connected to the power cord (w) is plugged into an outlet, and then heat the lower heat sink 30 and the upper heat sink 40 by the lower heater and the upper heater. At this time, the user inserts the hair by the pinching operation of the lower heat sink 30 and the upper heat sink 40, the hair to the lower heat sink 30 and the upper heat sink 40 so as to provide heat to the entire hair. Sliding moves along.

On the other hand, the lower heat dissipation plate 30 and the upper heat dissipation plate 40 usually has a rectangular heat generating portion, the lower heat dissipation plate 30 and the upper heat dissipation plate 40 itself is extruded aluminum (Al) or jade (jade), the surface Coating materials such as teflon, anodizing and ceramic are commercially available.

However, since heat is emitted in all directions through the lower heat sink 30 and the upper heat sink 40, heat loss is generated and the thermal efficiency is poor.

In addition, in recent years, products have been developed in which a user can more easily control a hair iron and double the convenience of use.

For example, the Republic of Korea Patent Publication No. 10-2005-0019187 (published on March 03, 2005), as well as to facilitate the heat transfer to the hair to the temperature required by the user, as well as heat to the hair A technique has been disclosed for a hair iron that allows the lower hot plate and the upper hot plate to be always in surface contact with the hair so that the hair can be more easily groomed.

And the Republic of Korea Patent Publication No. 10-2004-0110491 (published December 31, 2004) is a hair that improved the fixing structure of the temperature sensor of the heating element as well as the material of the heating element that directly generates heat required for hair treatment A flat iron heating apparatus is disclosed.

However, the above-described hair iron is provided with a separate support means for seating the heating element in the inside of the hot plate, and as the use force of the support means decreases as the use period elapses, the heating element is separated from the hot plate and the amount of heat transferred to the hair is reduced. And there is a problem that heat loss occurs.

Therefore, the first object of the present invention does not require a separate support means for closely contacting the heater portion to the heating plate, and even if the period of use has elapsed, the heater portion and the heating plate are not spaced apart, thereby improving the durability of the apparatus. An object of the present invention is to provide an integrated heating device for hair iron that can provide uniform thermal efficiency.

In addition, a second object of the present invention is to provide a method for manufacturing the integrated heating device for hair iron described above.

In order to achieve the first object of the present invention described above, in one embodiment of the present invention, a heating device for a hair iron which is installed in the hair iron and provides heat to the hair, the flat plate portion in contact with the hair to provide heat And a heating plate including a pair of vertically protruding sidewall portions protruding from the surface of the flat plate that are not in contact with the hair along the longitudinal direction of the plate, and a pair of protrusions extending in a direction facing each other from the ends of the respective sidewall portions; A heater unit provided on an upper portion of the flat plate unit positioned between the pair of side wall portions, and one end of which has a contact terminal for connecting to a power cord; A heat conductive resin layer provided between the plate part and the heater part to provide an adhesive force to the heater part; And a fixing support plate provided at an upper portion of the heater part to support the heater part so as not to be separated.

In order to accomplish the second object of the present invention, in an embodiment of the present invention, a flat plate portion for contacting the hair to provide heat, a flat plate portion for vertically protruding a surface not contacting the hair along the longitudinal direction of the flat plate portion A method of manufacturing a heating apparatus for a hair iron using a heating plate including a pair of side walls and a pair of protrusions extending in a direction facing each other from an end of each side wall, wherein (i) the pair of side walls Applying a thermally conductive resin to an upper portion of the flat plate portion disposed between and seating a heater on the upper portion of the thermally conductive resin; (Ii) placing a fixing support plate on an upper portion of the heater portion; And (iii) forming a bent portion on the pair of protrusions to bring the heater portion and the fixed support plate into close contact with the flat plate, and to dry the thermally conductive resin.

According to the present invention, since the heating plate, the heater unit and the fixed support plate are integrally formed, the thermal conductivity is improved and the heat loss is minimized.

In addition, the present invention by using a film-based heating element of a metal series, such as nickel, chromium, stainless steel, etc. in the heater portion, it is possible to overcome the fragile point, which is a problem of the conventional ceramic heating element, the temperature increase rate and return time is fast.

1 is a perspective view for explaining a conventional hair iron.
Figure 2 is a perspective view for explaining a heating device for a hair iron according to an embodiment of the present invention.
3 is a cross-sectional view illustrating a heating apparatus for a hair iron according to an embodiment of the present invention.
4 is an exploded perspective view illustrating a heater unit of a heating apparatus according to an embodiment of the present invention.
5 is a perspective view illustrating a heater unit of a heating apparatus according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail an integrated heating device for a hair iron (hereinafter referred to as "integrated heating device") according to preferred embodiments of the present invention.

Figure 2 is a perspective view for explaining the integrated heating apparatus according to an embodiment of the present invention.

Referring to FIG. 2, the integrated heating device 300 according to an embodiment of the present invention includes a heating plate 310 provided in a hair iron to apply heat to the hair while being in surface contact with the hair, and the heating plate 310. A heater portion provided at an upper portion of the heater plate, a heat conductive resin layer provided between the heating plate 310 and the heater portion to attach the heater portion to the heating plate 310, and provided at an upper portion of the heater portion of the heater portion 330. It includes a fixed support plate 340 provided to the upper side, and may further include side blocking portions (350, 350 ') and the electric wire 338 and the insulating resin layer (360).

At this time, the electric wire 338 is connected to a power cord (not shown) provided at a rear end of the hair iron, and provides external power supplied from the power cord to the heater. As such, when external power is supplied to the heater through the electric wire 338, the heater is heated by the power and provides the generated heat to the hair through the heating plate 310.

Hereinafter, each component will be described in more detail with reference to the drawings.

2 and 3, the heating apparatus 300 according to an embodiment of the present invention includes a heating plate 310.

The heating plate 310 is provided to provide the hair with heat generated from the heater 330 by being in surface contact with the hair, and the shape thereof is not particularly limited as long as this object can be achieved.

Preferably, the heating plate 310 according to the present invention includes a flat plate portion 312, a pair of side wall portions 314 and 314 'and a pair of protrusions 316 and 316', as shown in FIG. It can be configured to.

More specifically, the flat plate 312 is provided on one side of the hair iron to which the hair is in contact so as to provide heat to the hair. In addition, the pair of side wall portions 314 and 314 'are formed to protrude perpendicularly to the surface not contacting the hair along the longitudinal direction of the flat plate portion 312, and the pair of protrusions 316 and 316' are formed on the respective side walls. It is formed to extend in the direction facing each other from the ends of the portions (314, 314 '). In this case, the pair of side wall portions 314 and 314 ′ and the pair of protrusions 316 and 316 ′ may be formed to seat the heater 330 on the heating plate 310.

The flat plate 312, the pair of sidewalls 314 and 314 ′, and the pair of protrusions 316 and 316 ′ may be formed of aluminum or the like to safely provide heat generated therein to the hair. desirable.

In addition, as shown in FIGS. 2 and 3, one side of the heating plate, for example, a pair of protrusions 316 and 316 ′, has a heat conductive resin layer 320, a heater part 330, and a fixed support plate on the flat plate part 312. The bent portion 318 may be formed to closely contact the 340. At this time, the bent portion 318 is bent to the pair of protrusions 316 and 316 'is formed by the heat conduction resin layer 320, the heater portion 330 and the fixed support plate 340 by the bending portion 312. If it can be in close contact with the shape is not particularly limited, for example, it may be formed in a triangle, hemispherical, square or the like.

2 to 5, the heating device 300 according to an embodiment of the present invention includes a heater unit 330.

The heater 330 is provided on an upper portion of the flat plate portion 312 positioned between the pair of side wall portions 314 and 314 '.

 As shown in FIG. 4, the heater 330 has a contact terminal 336 formed at one end in a direction in which the power cord is located so that the heater unit 330 may be efficiently connected to the power cord. In addition, the heater unit 330 may be composed of an insulating paper 332, and a heat generating circuit 334 pressed on the insulating paper 332. The insulating paper 332 may be formed of a polyimide film or the like, and the heating circuit 334 may be formed by patterning a heating wire on the insulating paper 332.

In this case, as shown in FIG. 2, the contact terminal 336 may be connected to a power cord and may be connected to a wire 338 for applying power supplied from the power cord to the contact terminal 336.

The heating circuit 334 may be used without limitation as long as it is a material capable of generating heat through power introduced from the wire 338 connected to the contact terminal 336, and specifically, a metal such as nickel, chromium, or stainless steel. It may be composed of a series, and in particular, SUS 304, NiCr alloy and the like can be used.

3 to 5, the heating apparatus 300 according to an embodiment of the present invention includes a thermally conductive resin layer 320.

The thermally conductive resin layer 320 is provided between the plate part 312 and the heater part 330 to provide adhesion to the heater part 330 so that the heater part 330 may be attached to the plate part 312. It is.

As shown in FIG. 5, the heat conductive resin layer 320 may be formed to have a larger area than the heater part 330 so as to provide a smooth adhesive force to the heater part 330.

The thermally conductive resin layer 320 should be applied to a material having excellent thermal conductivity while providing adhesion, and excellent in heat resistance at high temperatures, and it is preferable to use an epoxy resin having a small change over time when used for a long time.

At this time, it is preferable to use a compound composed of a mixture of cyclic aliphatic cycloaliphatics and flame retardant epoxy, and a curing agent. In addition, it is preferable to use a mixture of a cyclic (cyclic) aliphatic polyamine and an aromatic primary amine as the curing agent.

2 to 5, the heating apparatus 300 according to an embodiment of the present invention includes a fixed support plate 340.

The fixed support plate 340 is provided above the heater 330, and serves to block the top of the heater 330 from the outside so as not to damage the heater 330 by external force.

In addition, the fixed support plate 340 protects the heater 330 so that the bent portion 318 formed on the pair of protrusions 316 and 316 'does not directly contact the heater 330, and at the same time the bent portion 318 It acts so that the pressing force formed by the uniformly transmitted to the front surface of the heater unit 330.

In other words, the fixed support plate 340 blocks the upper portion of the heater 330 so that the heater 330 is not separated to the outside, and the pressing portion generated in the direction of the flat plate 312 by the bent portion 318 is heated. By providing to the 330 so that the heater unit 330 is in close contact with the flat plate 312, the heater unit 330 and the heating plate 310 is implemented.

Therefore, in the integrated heating apparatus according to the present invention, the heater 330 is not spaced apart from the flat plate 312 even after the service period has elapsed.

On the other hand, the fixed support plate 340 is provided to cover the upper portion of the heater unit 330 except for the upper portion of the contact terminal 336 so that the wire can be smoothly installed in the contact terminal 336 as shown in FIG. Can be.

2, the heating apparatus 300 according to an embodiment of the present invention may further include an insulating resin layer 360.

The insulating resin layer 360 is provided on the upper portion of the contact terminal 336 of the heater to block the power applied to the contact terminal 336 from the outside through the electric wire 338, and if the purpose can be achieved And can be used without limitation. Specifically, a silicone resin can be used. In other words, the insulating resin layer 360 is provided to prevent the user of the hair iron from being electrocuted by the leakage current.

2, the heating apparatus 300 according to an embodiment of the present invention may further include side blocking portions 350 and 350 '.

The side blocking parts 350 and 350 ′ are provided at both ends of the heating plate 310 based on the length direction of the heating plate 310, and the thermal conductive resin layer 320, the heater part 330, and the fixed support plate 340 are separated from the outside. It serves to block the flow of the heat-conducting resin that is not cured, and consists of silicone rubber and the like.

In addition, the present invention provides a method of manufacturing a heating device 300 comprising the above-described components. Here, the heating device 300 is manufactured using a heating plate 310 configured to include a flat plate portion 312, a pair of side wall portions 314 and 314 ′, and a pair of protrusions 316 and 316 ′. .

In the manufacturing method of the heating apparatus 300 according to the present invention, a heat conductive resin is applied to an upper portion of the flat plate portion 312 positioned between a pair of side wall portions 314 and 314 ', and a heater portion is formed on the upper portion of the heat conductive resin. The first step of mounting the 330, the second step of mounting the fixed support plate 340 on the upper portion of the heater 330, and the bent portion 318 to a pair of protrusions constituting the heating plate 310 And a third step of drying the thermally conductive resin after the formation.

If necessary, an anodizing treatment, a ceramic coating, or a titanium coating may be performed on the surface of the flat plate portion 312 that is in contact with the hair before the first step. Thus, by surface-treating the flat plate part 312, it is possible to obtain not only an appearance but also excellent hardness, wear resistance, good adhesion, and the like.

The first step is a step for realizing the integral of the heating plate 310 and the heater unit 330, the heat conduction to provide an adhesive force to the heater unit 330 to adhere the heater unit 330 to the heating plate 310 The resin is applied to the upper portion of the flat plate portion 312 constituting the heating plate 310.

When the integrated type of the heating plate 310 and the heater unit 330 is implemented through this step, the gap between the heating plate 310 and the heater unit 330 is minimized, so that the heat generated from the heater unit 330 is smoothly heated plate ( 310 is provided. Accordingly, the heating device 300 can reduce the heat loss.

On the other hand, since the hair iron is used in a temperature range of 100 to 200 ℃ or more, it is preferable to use a high temperature resin that does not deform in the temperature range of 100 to 200 ℃ so that the thermal conductive resin does not deform even when the temperature rises to the maximum temperature. . In other words, as the thermally conductive resin, a high temperature resin that can be deformed at a temperature exceeding 200 ° C is used.

In addition, the heater 330 may preferably use a soft heater so as not to be damaged through a pressing process. Specifically, a thin film heating element may be used as the heater unit 330. Here, the film heating element is composed of an insulating paper 332 and the heating circuit 334 integrated in a compressed state to the insulating paper 332.

In addition, the heater unit 330 is preferably used that one end is formed with a contact terminal 336 for connecting to the power cord.

The second step is to prevent the heater unit 330 is in direct contact with the external force damage and at the same time the external force is fixed to the upper portion of the heater unit 330, so that the external force can be uniformly provided on the front of the heater unit 330 340 is the step of seating.

As the fixed support plate 340 used in this step, it is preferable to use the fixed support plate 340 formed to cover the upper portion of the heater unit 330 except for the contact terminal 336.

If necessary, after the step may be further provided with the step of installing the side blocking portion (350, 350 ') at both ends of the heating plate (310).

The side blocking portions 350 and 350 ′ serve to block the heat conduction resin applied to the heating plate 310 from leaving the heating plate 310 as the viscosity increases during curing.

In other words, the side blocking parts 350 and 350 ′ block the outflow of the thermal conductive resin so that the thermal conductive resin and the heater 330 are not separated from the heating plate 310 through the third step.

The third step is a step of forming a bent portion 318 on the heating plate 310 to bring the heater 330 and the fixed support plate 340 in close contact with the plate 312, and then to dry the thermal conductive resin Perform the process. Here, the drying of the thermally conductive resin is performed through a process of heating to about 280 ℃ for 90 to 150 minutes, and natural cooling at room temperature.

Specifically, the bent portion 318 is formed so that the heater unit 330 and the fixed support plate 340 can press the plate portion 312 by using a dedicated tool using a hand press or air press equipment.

In this step, the bent portion 318 is formed in the pair of flat plates 312 constituting the heating plate 310 through a pressing process of providing a physical external force to the heating plate 310.

As such, the bent portion 318 formed in the flat plate portion 312 through this step serves to provide a pressing force to the heater portion 330 and the fixed support plate 340 in the flat plate portion 312 direction. Accordingly, the curved portion 318 may replace the leaf spring provided to provide the pressing force to the heater 330 and the fixed support plate 340 in the conventional heating device 300. In addition, since the bending part 318 does not easily be deformed according to a physical external force, the heater part 330 and the fixed support plate 340 are compared with the leaf spring which may be deformed as the period of use elapses. Thereby providing a uniform pressing force.

If necessary, after the third step, the step of connecting or soldering an electric wire to the contact terminal 336 included in the heater unit 330 and applying an insulating resin on top of the contact terminal 336 It may be further included.

This step is to prevent the electric current applied to the contact terminal 336 through the electric wire to flow out to the user of the hair iron.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It can be understood that it is possible.

300: lower heating device 310: heating plate
312: flat plate portion 314, 314 ': side wall portion
316, 316 ': protrusion 318: bend
320: heat conductive resin layer 330: heater
332: insulating paper 334: heating circuit
336: contact terminal 340: fixed support plate
350, 350 ': side blocking part 360: insulating resin layer

Claims (12)

A heating device for a hair iron, which is installed in a hair iron to provide heat to the hair,
A flat plate portion which contacts the hair to provide heat, a pair of vertically protruding side wall portions of the surface not contacting the hair along the longitudinal direction of the flat portion, and extending in a direction facing each other from the ends of the respective side wall portions; A heating plate including a pair of protrusions;
A heater unit provided on an upper portion of the flat plate unit positioned between the pair of side wall portions, and one end of which has a contact terminal for connecting to a power cord;
A heat conductive resin layer provided between the plate part and the heater part to provide an adhesive force to the heater part; And
The heating unit for a hair iron is provided on the heater unit including a fixed support plate for supporting the heater so as not to be separated.
The method of claim 1,
The pair of protrusions are integral heating device for a hair iron, characterized in that the bent portion is formed in close contact with the heater unit and the fixed support plate in the flat plate.
The method of claim 1,
The thermally conductive resin layer is integrated heating device for hair iron, characterized in that consisting of an epoxy resin.
The method of claim 3, wherein the epoxy resin
A unitary heating device for hair irons, characterized in that the formulation consists of a mixture of cyclic aliphatic and flame retardant epoxy and a curing agent composed of a mixture of cyclic aliphatic polyamines and aromatic primary amines.
The method of claim 1, wherein the heater unit
Insulating paper; And
Integral heating device for a hair iron, characterized in that consisting of a heating circuit pressed on the upper surface of the insulating paper.
The method of claim 5, wherein
The insulating paper is an integral heating device for a hair iron, characterized in that formed of a polyimide film.
The method of claim 1,
And a side shield part covering the heat conductive resin layer, the heater part, and the fixing support plate at both ends thereof with respect to the longitudinal direction of the heating plate.
The method of claim 1,
Integral heating device for a hair iron, characterized in that the insulating resin layer is provided on the contact terminal of the heater.
A flat plate portion which contacts the hair to provide heat, a pair of vertically protruding side wall portions of the surface not in contact with the hair along the longitudinal direction of the flat plate, and extending in a direction facing each other from the ends of the respective side wall portions In the manufacturing method of the integrated heating apparatus for hair irons using the heating plate containing a pair of protrusion part,
(Iii) applying a thermally conductive resin to an upper portion of the plate portion positioned between the pair of sidewall portions, and placing a heater portion on the upper portion of the thermally conductive resin;
(Ii) placing a fixing support plate on an upper portion of the heater portion; And
(Iii) forming a bent portion on the pair of protrusions to bring the heater portion and the fixed support plate into close contact with the plate portion and to dry the heat conductive resin;
Method of manufacturing an integrated heating device for hair iron comprising a.
10. The method of claim 9, wherein after step (iii)
Soldering or ultrasonic welding the electric wire to the contact terminal of the heater unit, the method of manufacturing an integrated heating device for a hair iron further comprising the step of applying an insulating resin on top of the contact terminal.
The method of claim 9,
Drying in the step (iii) is a method of manufacturing an integrated heating device for a hair iron, characterized in that consisting of a process of heating to 280 ℃ for 90 to 150 minutes, the natural cooling.
10. The method of claim 9, further comprising the steps of: (ii)
Method of manufacturing an integrated heating device for a hair iron, characterized in that it further comprises the step of installing side shields on both ends of the heating plate.

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