JP2014028130A - Facial treatment device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable facial treatment device that includes a thermal function and a cooling function by a single skin contact head, and that can efficiently perform temperature control and heat release of the contact head.SOLUTION: A facial treatment device, which includes a contact head to the skin, a heat conduction element contacting the reverse face of the contact head, a heat sink contacting the inside of the heat conduction element, a fan contacting the heat sink, air holes provided on both side surfaces and a back surface for circulating air by rotating the fan, a head temperature sensor, and a heat sink temperature sensor, controls a direction of an electric current to be applied to the heat conduction element according to selection of a hyperthermia mode and a refrigeration mode, and controls to keep a contact head temperature in a fixed range, based on a temperature measured with the head temperature sensor, and keep a heat sink temperature in a fixed range, based on a temperature measured with the heat sink sensor.

Description

  The present invention relates to a facial device, and more particularly to a facial device that has both a heating function and a cooling function as a single unit.

  A facial device is a beauty device that uses ultrasonic waves, ions, laser beams, etc. to care for the facial skin. By using the device, whitening, promoting skin metabolism and blood circulation, moisturizing and tightening the skin, wrinkles, sagging and aging. The products that advertise various effects, such as prevention, are sold.

  The skin has the function of loosening when warmed and tightening when cooled, so to use these functions, a single facial device has both the heat and cooling functions of the skin, such as ultrasound, ions, laser, mist, etc. When combined with various functions, it is considered that an efficient and high beauty effect can be achieved.

  In this regard, a facial device having a heating function and a cooling function by a single skin contact head is disclosed in, for example, Patent Documents 1 to 5 below. In each of these patent documents, a Peltier element is used to heat and cool the contact head to the skin. When a DC voltage is applied in a certain direction, the Peltier element absorbs heat on the front and back sides and dissipates heat on the other side, and when the current direction is switched to the opposite direction, the side that was absorbing heat is reversed. The surface that was radiating heat absorbs heat. Therefore, it is considered suitable as a heat transfer element used for heating and cooling with a single skin contact head.

  However, despite the fact that facial instruments using Peltier elements are disclosed in a large number of documents as described above, they are portable facial instruments that have a thermal function and a cooling function with a single skin contact head. As far as the inventor knows, there are few examples of actual facial products that have been commercialized.

  A Peltier element is a plate-like semiconductor element that uses the Peltier effect that heat is transferred from one metal to the other when an electric current is passed through the junction of two types of metal. Since the heat absorbed on the heat absorption side and the heat for the power consumption are generated on the heat dissipation side, the heat generation on the heat dissipation side is much larger than the heat absorption on the heat absorption side. If the temperature range of heating and cooling in the skin contact head is controlled to a range suitable for human skin and the exhaust heat is not sufficiently exhausted, the Peltier element itself is damaged and the facial body itself is adversely affected. In portable facial instruments, the space for storing parts is compact, so it is a technical bottleneck to achieve both efficient exhaust heat and temperature control of heating and cooling in the contact head. It is thought.

Japanese Patent Laid-Open No. 04-089058 JP 2000-037412 A JP 2001-190586 A Japanese Utility Model Publication No. 01-159857 Japanese Utility Model Publication No. 07-039814

  An object of the present invention is to provide a facial device having a heating function and a cooling function by a single skin contact head, and capable of efficiently performing temperature control and heat dissipation of the contact head. It is to be.

  In order to solve the above-mentioned problems, a facial device according to the present invention includes a portable case, a contact head to the skin attached to the opening of the case, and a heat transfer element built in the case and in contact with the contact head. A heat sink that is in contact with the side of the heat transfer element facing the contact head, a fan that is in contact with the heat sink, and a back surface that takes in air from both sides by rotating the fans provided on both sides and the back of the case. A vent hole for discharging air to the side, a head temperature sensor for measuring the temperature of the contact head, a heat sink temperature sensor for measuring the temperature of the heat sink, a heat mode and cooling mode selection switch attached to the case, Heat generation of the heat transfer element by controlling the direction of the current applied to the heat transfer element according to the switching of the selection switch of the heat mode and the cooling mode In addition to controlling the endothermic effect, keep the temperature of the contact head in a certain range based on the temperature measured by the head temperature sensor, and keep the heat sink temperature in a certain range based on the temperature measured by the heat sink sensor And a control unit for controlling.

  A Peltier element can be used as the heat transfer element of the above-described facial device. In addition, regarding the control of the temperature of the facial device, the temperature of the contact head is maintained in the range of 35 ° C. to 42 ° C. when the heating mode is selected, and the temperature of the contact head is controlled when the cooling mode is selected. It is preferable that the temperature of the heat sink sensor is controlled so as not to exceed 40 ° C. while being kept in the range of 8 ° C. to 16 ° C.

  According to the present invention, it is possible to provide a facial device having a thermal function and a cooling function with a single head, and having operational stability and safety while being portable.

It is the figure which showed the external appearance of embodiment of the facial device by this invention. It is the figure which showed typically the longitudinal cross-section of embodiment of the facial device by this invention. It is the figure which showed typically the cross section of the peripheral part of a contact head. It is the figure which showed other embodiment regarding the shape of a contact head. It is the figure which showed other embodiment regarding temperature control.

  Hereinafter, embodiments of a facial device according to the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing the appearance of an embodiment of a facial device according to the present invention, where (a) is a front view, (b) is a side view, (c) is a rear view, and (d) is a perspective view. is there. FIG. 2 is a diagram schematically showing a longitudinal section of an embodiment of the facial device according to the present invention, and FIG. 3 is a diagram schematically showing a transverse section of a peripheral portion of the contact head.

  As shown in FIG. 1, the facial device according to the present embodiment is a facial device that can be easily handled with one hand. The contact head 2 is attached to the opening of the case 1 made of synthetic resin. The skin is held by holding the lower part of the vessel and pressing the contact head 2 against the skin. The part corresponding to the handle of the facial device includes a power switch 9 for operating power ON / OFF, selection switches 8a and 8b for selecting a heating mode and a cooling mode, power ON / OFF and charging A display lamp 12 is provided for displaying whether or not. Further, on both sides of the case 1, air holes 6 a that take in air by rotating the fan 5 (see FIG. 2) are provided. On the back side of the case 1, air is supplied by rotating the fan 5. A vent hole 6b for discharging is provided.

  Next, the configuration inside the facial device will be described with reference to FIGS. 2 and 3.

  The skin contact head 2 attached to the opening of the case 1 is a portion that comes into contact with the skin so as to be pressed against the skin, and is made of, for example, a metal having a high thermal conductivity such as aluminum, steel, and stainless steel. It is made of a thin plate, and is further plated with titanium, which is said to be less susceptible to allergies to the skin. A heat transfer element 3 is disposed in contact with the contact head 2, and the contact head 2 is heated or cooled by the heat generation / heat absorption action of the heat transfer element 3. A heat sink 4 is disposed in contact with the inner side of the heat transfer element 3 (the side facing the contact head 2), and a fan 5 is attached to the back side of the heat sink 4. The heat sink 4 is made of, for example, a metal having a low thermal resistance such as aluminum, and fins are provided to increase the surface area and improve the performance. Further, a head temperature sensor 7 a for measuring the temperature of the contact head 2 in contact with the inside of the contact head 2 is provided, and a heat sink temperature sensor 7 b for measuring the heat sink 4 is provided in contact with the lower part of the heat sink 4. Yes.

  A printed circuit board 10 and a battery 11 as a power source for supplying power to each component via the printed circuit board 10 are arranged inside the handle portion of the facial device. The heat transfer element 3, the drive unit of the fan 5, the head temperature sensor 7a, the heat sink temperature sensor 7b, the display lamp 12, and the like are electrically connected to the printed circuit board 10, and the power switch 9 and the selection switches 8a and 8b are operated. Alternatively, according to the temperatures detected by the head temperature sensor 7 a and the heat sink temperature sensor 7 b, the control circuit provided on the printed circuit board 10 determines the direction and time (ON / OFF) of the DC voltage applied to the heat transfer element 3 and the fan 5. And the display of the display lamp 12 are controlled.

  Next, temperature control of the heat transfer element 3 that heats and cools the contact head 2 will be described. The heat transfer element 3 uses a Peltier element in the present embodiment.

  When the heat mode is selected by operating the selection switch 9a or 9b, the control circuit of the printed circuit board 10 supplies the heat transfer element 3 with a DC voltage in a direction in which the surface of the heat transfer element 3 on the contact head 2 side radiates heat. Control to do. Thereby, the contact head 2 is heated. The temperature of the contact head 2 is always measured by the head temperature sensor 7a, and the temperature data is transmitted to the printed circuit board 10.

  The control circuit transmits the temperature transmitted from the head temperature sensor 7a so that the head temperature is maintained in the range of 35 ° C. to 42 ° C. after a predetermined time has elapsed (for example, 30 to 40 seconds) after the thermal mode is selected. Monitoring is performed based on the data. When the temperature rises beyond this range, power supply to the heat transfer element 3 is stopped, and when the temperature drops beyond the temperature range, power supply to the heat transfer element 3 is stopped. Try to resume.

  When the cooling mode is selected by the selection switch 9a or 9b, the control circuit of the printed circuit board 10 performs control so as to supply the direct current voltage to the heat transfer element 3 in the direction opposite to that when the thermal mode is selected. Thereby, the contact head 2 absorbs heat.

  Further, when the cooling mode is selected, the control circuit first drives the fan 5. In the cooling (heat absorption) mode, the heat absorbed on the heat absorption side (contact head 2 side) of the heat transfer element 3 and the heat for the power consumption are generated on the heat dissipation side (back side), so that heat generation on the heat dissipation side occurs. Much larger than the amount of heat absorbed on the heat absorption side. Therefore, in order to perform sufficient heat radiation on the heat radiation side, heat is radiated by the heat sink 4 provided with fins, and the fan 5 is rotated so that a vent hole provided in the side surface of the case 1 as shown in FIG. By taking in air from 6a and discharging air from the vent 6b provided on the back surface of the case 1, the air is circulated inside the case 1 (see arrows in FIG. 3), and the heat dissipation efficiency is increased.

  On the other hand, the control circuit is transmitted from the head temperature sensor 7a so that the head temperature is maintained in the range of 8 ° C to 16 ° C after a certain time has elapsed since the cooling mode was selected (for example, after 30 to 40 seconds). If the temperature falls beyond this range, the power supply to the heat transfer element 3 is stopped, and if the temperature rises beyond the temperature range, the heat transfer to the heat transfer element 3 is stopped. Try to resume power supply.

  Further, the temperature of the heat sink 4 is always measured by the heat sink temperature sensor 7 b, and the temperature data is transmitted to the printed board 10.

  The control circuit monitors based on the temperature data transmitted from the heat sink temperature sensor 7b so that the temperature of the heat sink 4 is not heated above a certain temperature (for example, kept at 40 ° C. or lower). When the temperature rises, the power supply to the heat transfer element 3 is stopped, and when the temperature drops beyond the temperature range, the power supply to the heat transfer element 3 is resumed. In this way, the control circuit keeps the temperature of the contact head 2 pressed against the human skin at an appropriate temperature according to the heating or cooling mode, and the operation of the heat transfer element 3 and other components due to the temperature rise on the heat radiation side. Prevents defects, damage and destruction.

  As described above, the facial device according to the embodiment of the present invention is portable and realizes the thermal function and the cooling function with a single head, and is excellent in operational stability and safety. And, by opening the pores of the skin with the thermal function, cleansing can be performed effectively by ultrasonic waves and ion introduction, and the cosmetic ingredients can be effectively taken into the skin by the cell activation by the thermal function. Further, after the above skin care by the thermal function, the beauty component can be confined in the skin by tightening the pores by the cooling function.

  The facial device according to the present invention can have various functions such as ultrasonic waves, ion introduction, and cosmetic component introduction, as well as a heating function and a cooling function, and these techniques use existing technologies. Therefore, the description of the configuration for realizing these functions is omitted.

  Next, another embodiment relating to the shape of the contact head 2 will be described with reference to FIG. 1 to 3, the contact surface of the contact head 2 with respect to the skin is flat, but the shape of the contact head 2 is not necessarily flat, and may be spherical, for example. The entire contact head 2 may be a sphere. FIGS. 4A and 4B show the appearance of a facial device provided with a ball-type contact head 2, wherein FIG. 4A is a front view, FIG. 4B is a side view, FIG. 4C is a rear view, and FIG. It is a side view which shows the cross section of only 2 accommodating parts, and illustration is abbreviate | omitted about the structure inside case 1. FIG.

  The contact head 2 is a sphere, is fitted in the opening of the case 1, and the side of the thermoelectric element 3 that contacts the contact head 2 is formed in a shape along the sphere surface of the contact head 2. Then, when the facial device is moved by applying the contact head 2 to the skin, the contact head 2 freely rotates along the skin. By making the shape of the contact head 2 a sphere, effective partial care can be performed around the nose, around the eyes and mouth.

  In this embodiment, since the contact head 2 as a sphere needs to be heated or cooled, a material having high thermal conductivity, for example, aluminum or magnesium is used as the material of the contact head 2.

  Moreover, in this embodiment, in order to make the contact head 2 easy to apply to the part intended for skin care in order to perform partial care, the shape of the case 1 is elongated and slightly curved, Operability is improved.

  Further, another embodiment relating to temperature control will be described with reference to FIG. In the facial device described with reference to FIGS. 1 to 3, the control circuit maintains the temperature of the contact head 2 in the range of 35 ° C. to 42 ° C. when the heating mode is selected, and the cooling mode is selected. In addition, the temperature of the contact head 2 is maintained in the range of 8 ° C. to 16 ° C., and the temperature of the heat sink sensor is controlled so as not to exceed 40 ° C. On the other hand, since the sensible temperature varies depending on the user even at the same temperature, in this embodiment, it is possible to perform more comfortable temperature setting for the user in each of the heating mode and the cooling mode in the above temperature range. It has become.

  For this purpose, the facial instrument shown in FIG. 5 is provided with a liquid crystal operation screen 13 in addition to the selection switches 8a and 8b, the power switch 9 and the display lamp 12 having the same functions as those shown in FIG. . On the liquid crystal operation screen 13, a warm / cool button 13c, a warm button 13a, and a cool button 13b for entering a temperature setting mode are provided in addition to the function selection buttons for cleansing and moisturizing care. When the user presses the hot / cold button 13c, the hot button 13a and the cold button 13b become operable. Other configurations are the same as those shown in FIG.

  Next, a temperature setting procedure by the control circuit will be described. For example, it is assumed that the user operates the selection switch 8a to select the thermal mode. When the user feels that the contact head 2 is applied to the skin and wants to lower the temperature a little, the user presses the hot / cold button 13c to enter the temperature setting mode and then operates the cold button 13b. The control circuit detects that the cold button 13b has been pressed, and the user desires based on the temperature measured by the head temperature sensor 7a at the time of detection and the number or time of pressing of the cold button 13b. The temperature is calculated and set to a set temperature with a certain width. Power supply to the heat transfer element 3 is stopped until the temperature drops to the set temperature, and when the temperature drops below the set temperature, power supply to the heat transfer element 3 is started. By controlling to do so, the temperature of the contact head 2 is controlled to be maintained at a temperature desired by the user. On the other hand, when the temperature button 13a is operated, the control circuit detects that the temperature button 13a is pressed, and the temperature measured by the head temperature sensor 7a at the time of detection and the pressing of the temperature button 13a. Based on the number of times or the pressing time, the temperature desired by the user is calculated and set as a set temperature with an integral width, and the power supply to the heat transfer element 3 is continued until the set temperature rises, and the head temperature sensor exceeds the set temperature. When the temperature detected at 7a rises, the power supply to the heat transfer element 3 is stopped, and the temperature of the contact head 2 is controlled to be maintained at the temperature desired by the user.

  When the cooling mode is selected, when the cold button 13b is pressed, a direct current voltage in the opposite direction to that when the heating mode is selected is supplied to the heat transfer element 3, and an operation for driving the fan 5 is added. However, the temperature control procedure is the same as in the thermal mode described above.

DESCRIPTION OF SYMBOLS 1 Case 2 Contact head 3 Heat transfer element 4 Heat sink 5 Fan 6a Vent hole 6b Vent hole 7a Head temperature sensor 7b Heat sink temperature sensor 8a, 8b Selection switch 9 Power switch 10 Printed circuit board 11 Battery 12 Display lamp 13 Liquid crystal operation screen 13a Temperature button 13b cold button 13c hot / cold button

Claims (3)

A portable case,
A contact head to the skin attached to the opening of the case;
A heat transfer element built in the case and in contact with the contact head;
A heat sink in contact with the side of the heat transfer element facing the contact head;
A fan in contact with the heat sink,
A ventilation hole provided on both sides and the back of the case for taking air from both sides by rotating the fan and discharging the air to the back;
A head temperature sensor for measuring the temperature of the contact head;
A heat sink temperature sensor for measuring the temperature of the heat sink;
A selection switch for the heating mode and cooling mode attached to the case,
Controls the heat transfer / heat absorption action of the heat transfer element by controlling the direction of the current applied to the heat transfer element according to the switching of the selection switch of the heat mode and the cooling mode, and contacts based on the temperature measured by the head temperature sensor. A control unit for controlling the temperature of the heat sink to be kept within a certain range based on the temperature measured by the heat sink sensor, while keeping the temperature of the head within a certain range;
A beautiful facial device.   The facial device according to claim 1, wherein the heat transfer element is a Peltier element.   The controller keeps the temperature of the contact head in a range of 35 ° C. to 42 ° C. when the heating mode is selected, and keeps the temperature of the contact head in a range of 8 ° C. to 16 ° C. when the cooling mode is selected. The facial device according to claim 1, wherein the facial device is held and controlled so that the temperature of the heat sink sensor does not exceed 40 ° C.

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