Heating plate for perming device

Abstract

According to the heat plate for the perm, the heat diffusion plate is arranged between the ceramic heat plate and the ceramic heater, so that the heat of the ceramic heater is in contact with the wider area of the ceramic heat plate, and the heat balance state of the ceramic heat plate and the heat diffusion plate is quickly achieved.

Description

Technical Field

[0001] This invention relates to a hot plate for a hair curling iron, and more particularly to a hot plate for a hair curling iron in which a flat portion is formed in the center of a ceramic hot plate that comes into direct contact with the hair, and gently sloping, arc-shaped spacers are formed on both sides, thereby preventing indentations from being left on the hair when using the hair curling iron. The hot plate also incorporates a heat source, namely a ceramic heater, and a heat diffusion plate that widely disperses and transfers the heat from the ceramic heater. Background Technology

[0002] Generally speaking, hair curling irons have an electric heater built into the hot plate facing upwards. By applying power to the electric heater, the heated plate straightens or curls the hair into the desired shape.

[0003] Regarding the hair curler mentioned above, technologies are currently being proposed that can effectively change the shape of the hair while preventing heat from the electric heater from being transferred to the outside or from being damaged by concentrated heat on specific parts of the hot plate.

[0004] As a related prior art, a "heat-conducting plate structure for a hair perm" is disclosed in Korean Utility Model Registration No. 20-0491139 (February 19, 2020).

[0005] The existing technology, such as Figure 1 As shown, the feature is that: a heat-conducting plate 100 of a hair curler, which is installed on the lower front part of the upper body 10 and the lower front part of the lower body 20 respectively, and comes into contact with each other during hair styling. The heat-conducting plate 100 includes: a heat-conducting component 110, which is rectangular, with its outer side 111, which contacts each other, being formed by a curved surface that arches towards the center, and its inner side 112, which is formed by a flat surface, and is made of one of ceramic, a mineral that effectively achieves heat transfer, and a carbon material; and a support component S, which is provided on both sides of the inner side 112 of the heat-conducting component 110 to support the leaf spring 40 and the cover plate 50 that cause the heater 30 to be pressed against the inner side 112. The support assembly S is a “T” shape consisting of a vertical plate S1 arranged along the length direction on the inner side 112 of the heat-conducting component 110, and snap-fit ​​pieces S2 and S3 bent at right angles from one end of the vertical plate S1 to the inner and outer sides respectively. Fixing grooves 112a are formed on both sides of the inner side 112 of the heat-conducting component 110 along the length direction, allowing the other end of the vertical plate S1 to be inserted and glued or forcibly inserted and fixed.

[0006] In the prior art as described above, the curved surface with a central arch protrusion of the heat-conducting plate cannot prevent the hair ends from curling during hair styling.

[0007] Furthermore, in the prior art as described above, although the heat-conducting plate 100 can easily slide on hair due to its curved structure, it also has the problem of uneven heat transfer of the heat-conducting component 110 during initial heating. Summary of the Invention

[0008] The present invention aims to solve the problems existing in the prior art as described above. The purpose of the present invention is to provide a hot plate for a hair curler, which is composed of a ceramic hot plate having a flat part in the center and arc-shaped spacers on the left and right sides of the flat part, a heat diffusion plate on the upper inner side of the ceramic hot plate, and a ceramic heater on the upper part of the heat diffusion plate. This allows the entire surface of the ceramic hot plate to be heated to a specified temperature, thereby easily forming curls on the hair, and the flat part and the spacers prevent indentations from being left on the ends of the hair.

[0009] To achieve the objectives described above, the hot plate for a hair perm according to the present invention is characterized in that: as a hot plate for a hair perm that forms curls on hair using a heated hot plate, it comprises: a ceramic hot plate having a contact end on its lower side that directly contacts the hair and a joint end on its upper side corresponding to the contact end, the joint end having two side walls protruding upwards; a heat diffusion plate embedded in the upper side of the joint end; and a ceramic heater attached to the upper part of the heat diffusion plate.

[0010] The invention is characterized in that the contact end is composed of a flat portion that directly contacts the hair and a pair of spaced portions that extend upward in an arc shape from the left and right ends of the flat portion.

[0011] The present invention is characterized in that: a thermistor sensor for detecting the temperature of the ceramic heater and a polyimide tape for fixing the thermistor sensor are provided on the lower side of one of the insulating plates; a snap-fit ​​retainer protruding inward and outward is provided on the upper end of both side walls of the joint end; and a plurality of insulating plates for preventing the heat of the ceramic heater from being conducted to the upper part and a leaf spring snapped onto the snap-fit ​​retainer in a manner that is close to the upper side of the insulating plate are provided at the joint end.

[0012] The invention is characterized in that: the upper end of the connecting end is further provided with an upper cover plate that is connected in a manner that wraps around the upper part of the leaf spring.

[0013] The present invention is characterized in that the heat diffusion plate is made of either aluminum or magnesium.

[0014] The invention is characterized in that: the leaf spring is provided with a pressing surface that adheres to the upper part of the insulating plate in the center and an inserting surface that bends upward from both sides of the pressing surface, and the inserting surfaces are provided with inclined ends that are cut at an angle to allow rotation and engagement when engaged with the engaging end.

[0015] The hot plate for a hair curler according to the present invention, as described above, has the following effects.

[0016] First, by making the contact end of the ceramic heating plate, which directly contacts and transfers heat to the hair, a flat part and a spaced-out part are constructed, which can prevent indentations from being left on the hair during hair styling. Secondly, by transferring the heat from the ceramic heater to a heat diffusion plate made of aluminum or magnesium, which has high thermal conductivity, the heat from the ceramic heater, which is only rapidly heated in specific areas, can be diffused and transferred over a wider area within the heat diffusion plate. Third, by attaching a heat diffuser plate to the joint end of the ceramic heating plate and placing a ceramic heater on top of the heat diffuser plate, partial heating of the ceramic heating plate can be prevented. This allows the ceramic heating plate, with its even heat conduction, to heat the hair, thereby achieving excellent curling results. Fourth, by attaching multiple insulating plates and leaf springs, which are respectively bonded to the upper part of the ceramic heating plate, to the back of the ceramic heater, the heat of the ceramic heater can be prevented from being released to the back and the heat can be evenly transferred to the heat diffusion plate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram illustrating the heat-conducting plate of a hair curler based on existing technology; Figure 2 This is a schematic diagram illustrating the hot plate of the hair curler according to the present invention; Figure 3 This is a schematic diagram illustrating the ceramic hot plate according to the present invention; Figure 4 This is a schematic diagram illustrating the heat diffusion plate and ceramic heater according to the present invention; Figure 5 This is a schematic diagram illustrating the heat-conducting plate and leaf spring according to the present invention. Detailed Implementation

[0018] Next, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0019] The hot plate for the hair curler of the present invention is as follows: Figures 2 to 5As shown, the hot plate for a hair curler that uses a heated hot plate to form curls on hair includes: a ceramic hot plate 10, which has a contact end 11 on its lower side that directly contacts the hair and a connecting end 12 on its upper side corresponding to the contact end 11, with both side walls protruding upwards; a ceramic hot plate 20, which is embedded in the upper side of the connecting end 12; and a ceramic heater 30, which is attached to the upper part of the heat diffusion plate 20.

[0020] The hair curler consists of a pair of ceramic heating plates 10 attached to a handle at the top and bottom. In use, hair is inserted between the contact ends 11 of the ceramic heating plates 10, causing the plates to press firmly against the outer surface of the hair. The hair is then curled by sliding the handle. The ceramic heater 30 heats up rapidly in specific areas when powered from an external source, making it difficult to diffuse heat over a wider area. Therefore, the heat diffusion plate 20 is used to transfer heat to the ceramic heating plates 10.

[0021] Furthermore, the contact end 11 is composed of a flat portion 11a that is in direct contact with the hair and a pair of spaced portions 11b that are formed in an arc shape from the left and right ends of the flat portion 11a upwards, thereby preventing indentations from being left on the hair when forming curls.

[0022] At this time, the left-right width of the planar portion 11a is formed to be approximately twice or more than the left-right width of the spaced portion 11b. That is, the left-right width of the planar portion 11a is greater than the sum of the widths of the two spaced portions 11b.

[0023] Furthermore, the upper ends of both side walls of the connecting end 12 are equipped with snap-fit ​​tabs 12a protruding inward and outward. The connecting end 12 is also equipped with multiple insulating plates 13 to prevent heat conduction from the ceramic heater 30 to the upper part, and leaf springs 14 that snap onto the snap-fit ​​tabs 12a in a manner that adheres tightly to the upper side of the insulating plates 13. This ensures that the ceramic heater 30 is pressed firmly against the back of the heat diffusion plate 20 with uniform pressure. The insulating plates 13 are made of silicon.

[0024] Furthermore, on the lower side of one of the insulating plates 13, a thermistor sensor (not shown) for detecting the temperature of the ceramic heater 30 and a polyimide tape (not shown) for fixing the thermistor sensor are provided. Silicone grease may also be applied to the upper side of the thermistor sensor, and the silicone grease can improve the heat transfer characteristics from the ceramic heater 30 to the thermistor sensor. The polyimide tape has stable and excellent heat resistance at high temperatures.

[0025] The upper end of the connecting end 12 is also equipped with an upper cover plate 15 that is connected to the upper part of the leaf spring 14 in such a way as to prevent heat from being transferred to the upper part of the connecting end 12.

[0026] Furthermore, the heat diffusion plate 20 is made of either aluminum or magnesium, which have high thermal conductivity, thereby enabling uniform conduction of heat transferred from the ceramic heater 30 and thus transferring heat to the entire area of ​​the ceramic heating plate 10.

[0027] Furthermore, the leaf spring 14 is provided with a pressing surface 14a that adheres to the upper part of the insulating plate 13 in the center and an inserting surface 14b that bends upward from both sides of the pressing surface 14a. The inserting surfaces 14b are provided with inclined ends 141 that are cut at an angle to allow rotation and engagement when engaged with the engaging end 12, thereby facilitating the assembly of the hot plate.

[0028] Next, the function of the hot plate of the hair curler according to the present invention, as configured as described above, will be explained.

[0029] The hot plate for the hair curler according to the present invention is as follows: Figures 2 to 5 As shown, in order to evenly transfer heat to the ceramic heating plate 10, a heat diffusion plate 20 and a ceramic heater 30 are sequentially attached to the upper connecting end 12 of the ceramic heating plate 10. Furthermore, the lower side surface of the ceramic heating plate 10, i.e., the contact end 11, transfers heat through contact with the hair. To prevent the shape of the ceramic heating plate 10 from leaving indentations on the hair, a flat portion 11a is provided in the center. Moreover, by providing arc-shaped spacer portions 11b on both sides of the flat portion 11a, the phenomenon of accidentally leaving indentations due to the contact end 11 of the ceramic heating plate 10 can be prevented when curls are formed on the hair.

[0030] Furthermore, the snap-fit ​​notch 12a of the connecting end 12 extends along the length direction, thereby allowing the leaf spring 14 to snap-fit ​​into place.

[0031] That is, when the leaf spring 14 is engaged with the snap-fit ​​12a, the leaf spring 14 will be pressed against the upper side of the plurality of insulating plates 13 on the upper side of the ceramic heater 30.

[0032] At this time, the inclined end 141 of the leaf spring 14 will slide into the front end of the connecting end 12, so that the embedding surface 14b is snapped into the inner lower side of the connecting end 12.

[0033] Furthermore, the heat diffusion plate 20 is made of either aluminum or magnesium, which have high thermal conductivity, thereby receiving the heat from the ceramic heater 30 and transferring heat to the entire area of ​​the ceramic heating plate 10, thereby keeping the temperature of the ceramic heating plate 10, which is in close contact with the hair, stable throughout the entire area.

[0034] As described above, the flat portion 11a and the spaced portion 11b of the ceramic hot plate 10, which allows heat to be evenly transferred according to the present invention, come into contact with the hair, thereby allowing the user to avoid leaving indentations on the hair and forming curls.

[0035] This invention is not limited to the specific preferred embodiments described above, but can be implemented in various ways by those skilled in the art without departing from the spirit of the invention as claimed in the claims, and the modifications described above are included within the scope of the claims.

Claims

1. A heating plate for a hair curling machine, characterized in that, As a hot plate for a hair perm that uses a heated plate to create curls in the hair, it includes: A ceramic heating plate (10) is provided with a contact end (11) on its lower side that directly contacts the hair, and a connecting end (12) formed by two side walls protruding upwards on its upper side corresponding to the contact end (11); a heat diffusion plate (20) is embedded in the upper side of the connecting end (12); and a ceramic heater (30) is attached to the upper part of the heat diffusion plate (20). The contact end (11) consists of a flat portion (11a) that is in direct contact with the hair and a pair of spaced portions (11b) that are formed in an arc shape from the left and right ends of the flat portion (11a) upwards.

2. The hot plate for a hair curling machine according to claim 1, characterized in that, The upper ends of both sides of the joint end (12) are equipped with snap-fit ​​tabs (12a) that protrude inward and outward. The joint end (12) is equipped with a plurality of insulating plates (13) to prevent the heat of the ceramic heater (30) from being conducted to the upper part, and a leaf spring (14) that is snapped onto the snap-fit ​​bracket (12a) in such a way that the insulating plates (13) are pressed against the upper side of the ceramic heater (30).

3. The hot plate for a hair curling machine according to claim 2, characterized in that, On the lower side of one of the insulating plates (13), a thermistor sensor for detecting the temperature of the ceramic heater (30) and polyimide tape for fixing the thermistor sensor are provided. At the upper end of the joint (12), It is also equipped with an upper cover plate (15) that is attached to the upper part of the leaf spring (14).

4. The hot plate for a hair curling machine according to claim 1, characterized in that, The heat diffusion plate (20) is made of either aluminum or magnesium.

5. The hot plate for a hair curling machine according to claim 2, characterized in that, The leaf spring (14) is provided with a pressing surface (14a) in the center that is attached to the upper part of the insulating plate (13) and an inserting surface (14b) that bends upward from both sides of the pressing surface (14a). The embedding surfaces (14b) are provided with inclined ends (141) that are cut at an angle to allow rotation and engagement when coupled to the coupling end (12).

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