KR20130020852A - Skin beauty apparatus controlling cold and warmth variably - Google Patents

Abstract

PURPOSE: A skin care device is provided to improve efficiency and performance thereof and to carry out cryoelectrophoresis and galvanic treatment. CONSTITUTION: A skin care device comprises a thermoelectric element(110) which emits and absorbs heat while changing heating and cooling direction according to electric current direction of a power source, a heat pipe for cooling the heat generation of the thermoelectric element, a radiating unit(120) consisting of a heat radiation pin for releasing the heat conducted to the heat pipe, a circuit controller(130) for controlling the operation of the thermoelectric element, a case which accommodates the thermoelectric element, radiating unit, and circuit controller, and a head(107) which is installed on the front surface of the case.

Description

Skin beauty apparatus controlling cold and warmth variably}

The present invention relates to a skin care device that is variable in temperature control, more specifically, a thermoelectric element and a heat pipe coupled heat dissipation fin for variable temperature control, and the circuit portion for variable control of the output voltage, frequency and waveform for variable temperature control The present invention relates to a skin care device capable of miniaturization and freezing ionization therapy (Cryoelectrophoresis) and galvanic treatment, thereby enabling effective skin beauty.

As is well known to those skilled in the art, the skin is formed with the brain in the mother and is present on the outermost side of the body and plays an important role in protecting internal organs from various directions from the outside and maintaining life and beauty. These skins usually lose their elasticity, so makeup is not well received and pumice, giving the impression of drooping, so the usual skin care becomes important.

In addition, in order to maintain skin aging and elasticity, it is necessary to clean the skin, and to have an accurate skin make-up and a proper massage suitable for one's skin condition. The skin elasticity decreases as it expands. At this time, by lowering the temperature of the skin by cold water or other methods, the elasticity of the skin can be maintained to prevent aging.

On the other hand, proper massage raises the temperature of the skin to open the pores to escape the aging keratin, waste and sebum, making the skin clean and preventing the skin from becoming coarse and fine wrinkles. In addition to the basic method of applying a hand and massage, it is applied more conveniently as a variety of massage devices such as mechanical vibration structure and far infrared ray discharging structure.

By the way, the skin beauty apparatuses, which have been massage devices, have performed skin massage by releasing the vibration method or far infrared rays of the massage cover according to the electric application by contacting the massage cover to the body skin based on the face, which is simply cleansed skin. There is only an effect that can reduce the trouble of rubbing the hands by hand did not give a certain effect of cold massage, such as taking a hot and cold bath alternately between the hot and cold bath in the bathroom.

In order to solve the above problems, the "cold-temperature controlled skin care device" filed in Patent Application No. 10-2000-0080968 (Publication No. 2001-0016582) is disclosed. According to the present invention, the effect of cold massage can be achieved by conveniently adjusting and controlling the cold and hot directions of the thermoelectric elements in which the cooling and heating operations are selectable by the thermoelectric phenomenon, by a switching operation, but have the following problems.

That is, the thermoelectric elements employed in the disclosed cold-controlled skin care device are a kind of heat pump that absorbs heat from one side of the thermoelectric element and radiates heat to the opposite side, that is, the endotherm is cooled by lowering the temperature. In this case, the heat dissipating side is heated to a higher temperature. By the way, since the disclosed cold and cold skin care device uses a general extrusion type heat radiating fin as a heat radiating portion for heat dissipation, if the heat radiating portion of the heat radiating portion is not smooth during cooling, there is a problem that the efficiency is lowered, and the heat radiating fin to increase efficiency If it is made larger, the efficiency is improved, but instead, the weight and size are increased, and the heat dissipation fan is also large.

In addition, a circuit for controlling a conventional skin care device uses a transformer (T) as shown in FIG. 1 to produce a desired AC waveform, and it is difficult to compact the circuit part due to the use of the transformer (T). Conventional skin beauty circuits provide a fixed output voltage, frequency, and waveforms only, so there is a problem in that effective cold and variable control is not possible.

The present invention has been invented to solve the above problems, including a heat dissipation unit for heat dissipating the cold and hot heat of the thermoelectric element and the thermoelectric element that provides cold and hot heat, the heat pipe and the heat dissipation fin is combined, the variable of cold and hot heat Equipped with circuitry to variably control the output voltage, frequency and waveform without the need for adjustment, improves the efficiency and performance of skin care devices, achieves miniaturization, and performs cryoelectrophoresis and galvanic treatments The purpose of the present invention is to provide a skin care device that can be controlled by one variable temperature.

In order to achieve the above object, the skin care device having a variable temperature control of cold according to the present invention comprises: a thermoelectric element having a heat generation operation and an endothermic operation while a cold temperature direction is switched according to a current direction of a power source; A heat dissipation unit including a heat pipe for cooling heat generated by the thermoelectric element, and a heat dissipation fin coupled to the heat pipe to dissipate heat transferred to the heat pipe; A circuit controller for controlling the operation of the thermoelectric element; A case in which the thermoelectric element, the heat dissipation part, and the circuit control part are built in, and a cold / hot selection switch is installed on a surface thereof to configure an appearance of the skin care device; And a head installed at the front part of the case so as to contact the skin of the user.

The circuit control unit includes: a microcomputer which receives a signal of the cold / hot selection switch and outputs a control signal of a variable frequency as a control signal for controlling the thermoelectric element; A PWM generator for outputting a PWM signal according to the control signal of the microcomputer; An output controller for controlling the direction of the output of the PWM generator; And a smoothing circuit unit for smoothing the output of the output control unit.

Preferably, the heat dissipation unit includes a blowing fan for discharging cold and hot heat to the outside.

Preferably, the circuit controller controls the heat dissipation unit so that the temperature of the head is controlled in the range of -5 ° C to + 45 ° C. This control is possible with the heat pipe.

Preferably, the circuit controller controls the radiator to alternately provide cold / heat heat at predetermined intervals through the head such that cryoelectrophoresis is applied.

Preferably, the circuit control provides a galvanic DC output to the head for galvanic treatment of the skin.

Preferably, the ground of the circuit controller is connected to the case so that the ground of the circuit controller is connected to the ground through the human body when the user grips the skin care device.

Skin care device according to the present invention, the heat dissipation unit for heat dissipating the cold and hot heat of the thermoelectric element and the thermoelectric element for providing cold and hot heat includes a heat pipe and a heat dissipation coupled to the heat sink, PWM control without transformer for variable control of cold and hot heat Circuitry to variably control the output voltage, frequency and waveforms to improve the efficiency and performance of the skin care device, achieve miniaturization, and provide the advantage that cryoelectrophoresis and galvanic current can be applied. do.

1 is a circuit block diagram provided with a transformer applied to a conventional skin care device.
Figure 2a, 2b is an appearance form of a skin care device that is controlled cold and variable according to the present invention.
Figure 3 is an exploded configuration diagram of a skin care device to be controlled cold and variable according to the present invention.
Figure 4 is a circuit diagram of a skin care device to be controlled cold and variable according to the present invention.
5 is a block diagram of a heat dissipation unit applied to the skin care device to be controlled cold and variable according to the present invention.
Figure 6 is a graph of various embodiments of the PWM output signal that is variable output in the circuit control unit of the cold and hot variable skin care device according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the skin care device controlled cold and variable according to the present invention.

2 to 5, according to the present invention, the skin care device 100 having a cold temperature variable control according to the present invention includes: a thermoelectric element 110 having a heat generation operation and an endothermic operation while the cold temperature direction is switched according to the current direction of the power source; Heat dissipation unit consisting of a heat pipe 122 for cooling the heat generated by the thermoelectric element 110 and a heat dissipation fin 124 for dissipating heat transferred to the heat pipe 122 by being coupled to the condensation unit of the heat pipe 122 ( 120); A circuit controller 130 for controlling the operation of the thermoelectric element 110; A printed circuit board in which the thermoelectric element 110, the heat dissipation unit 120, and the circuit control unit 130 are implemented is built-in, and a cold / hot selection switch and various switches are installed on the surface side, and the case configuring the appearance of the skin care device 100. 105; And a metal head 107 installed in the upper front portion of the case 105 to contact the skin of the user. 2A and 2B, reference numeral 102 is a cold / hot selection switch and various selection switches provided on the side of the case 105 so that a user can select them, and 104 is a display unit for displaying the operation state of the skin care device 100.

The circuit controller 130 includes a microcomputer 131 which receives a signal of the cold / hot selection switch 102 and outputs a control signal of a variable frequency as a control signal for controlling the thermoelectric element 110; A PWM generator 132 for outputting a PWM signal according to the control signal of the microcomputer 131; An output control unit 133 for controlling the direction of the output of the PWM generation unit 132; And a smoothing circuit unit 134 for smoothing the output of the output control unit 133. The controller 130 controls the heat dissipation unit 120 so that the temperature of the head 107 is controlled in the range of -5 ° C to + 45 ° C. This control is possible with the heat pipe 122. The control unit 130 controls the heat dissipation unit 120 to alternately provide cold / heat heat at predetermined intervals through the head 107 so that cryoelectrophoresis is applied and for galvanic treatment of the skin. Provide a galvanic DC output to the head 107.

As shown in FIG. 4, the PWM generator 132 preferably includes a resistor and an AMP, and the output controller 133 preferably includes an IC, and the smoothing circuit unit 134. ) Preferably comprises a coil and a capacitor element.

The heat dissipation unit 120 includes a blower fan 127 for discharging the cold and heat to the outside, and the evaporator 122a and the thermoelectric element of the heat pipe 122 to receive heat of the thermoelectric element 110 effectively. It comprises a heat transfer plate 126 interposed between the 110. The heat transfer plate 126 is preferably attached to the evaporator 122a of the heat pipe 122 to form a body as shown in FIG.

Referring to Figures 2 to 6 will be described the operation of the skin care device that is controlled cold and variable according to the present invention configured as described above.

First, in order to manufacture a hand-held skin care device, miniaturization, in particular, miniaturization of a heat dissipation part including a heat dissipation fin and a heat dissipation fan is essential. The present invention minimizes the size of the heat dissipation unit, that is, the size of the heat dissipation fin and the heat dissipation fan by employing a heat pipe to meet the needs of the handheld skin care device. According to the heat dissipation unit 120 of the present invention employing the heat pipe 122, compared with the heat dissipation fin used in the existing skin care device can reduce the weight to about 1/3, the size can be reduced to 1/2. According to the heat dissipation unit 120 of the present invention, the heat dissipation fan 120 may be a 60 mm heat dissipation fan of the existing skin care device as a 40 mm heat dissipation fan.

In addition, the present invention is adapted to appropriately modify the output voltage, frequency and waveform through the PWM output signal of the control of the microcomputer 131, in order to escape the limited massage effect due to the fixed output of the existing skin beauty machine frozen iontophoresis Cryoelectrophoresis and galvanic treatments were made possible.

2 to 6, when the user selects, for example, the cold heat of the freeze iontophoresis through the switch unit 102, the microcomputer 131 recognizes this and the cold heat corresponding to the freeze ionization therapy is thermoelectric. The control signal to be provided through the device 110 and the head 107 is output to the PWM generator 132. At this time, the control signal may be a variable frequency, of course, it will be apparent to those skilled in the art that the generation of such a variable frequency can be achieved by known hardware and programs.

When the control signal for the freezing ion phoresis therapy is output from the microcomputer 131 to the PWM generating unit 132, the PWM generation unit 132 is a PWM for the freeze ion phoresis according to the output control signal of the microcomputer 131. A signal is generated and applied to the output control unit 133. The duty cycle and waveform of the PWM signal output from the PWM generator 132 are changed according to the control signal of the microcomputer 131. An example of the output signal of the PWM generator 132 is illustrated in FIG. 6.

When the PWM signal is applied to the output control unit 133, the output control unit 133 controls the direction of the PWM signal so as to be frozen iontophoresis (for example, 100 volts or -100 volts) and applies it to the smoothing circuit unit 134. do. The signal smoothed by the smoothing circuit unit 134 is finally applied to the thermoelectric element 100 to cause a thermoelectric effect. At this time, the fan driving unit 137 of the heat dissipating unit 200 is driven under the control of the microcomputer 131, thereby causing the head. 107 to ensure that the desired refrigeration ionization therapy is achieved. The display unit 104 is driven by the display drive unit 138 controlled by the microcomputer 138 to indicate that the frozen iontophoresis is operating.

In FIG. 4, reference numeral 136 denotes a constant voltage unit that converts a commercial power source into a constant voltage and supplies the same to the circuit controller 130. Skin beauty device 100 of the present invention can be used, such as a battery power source and an adapter power source according to the known art of course. In the circuit control unit 130 of the present invention, the ground (ground indicated by a dashed circle in FIG. 4) is preferably connected to the case 105 or the metal portion of the case 105 so that the user can check the case ( When the 105 is gripped, the ground of the circuit controller 130 is connected to the ground through the human body. As a result, the skin care device 100 of the present invention can be used more safely.

Meanwhile, as another embodiment of the present invention, when the user selects a galvanic treatment through the switch unit 102, the microcomputer 131 recognizes this and a signal corresponding to the galvanic treatment is output from the PWM generator 132. The PWM generator 132 is controlled to be generated. Since the electrical signal corresponding to the galvanic treatment is a known signal, it can be easily carried out by those skilled in the art through a program installed in the microcomputer 131 and known peripheral hardware. Is omitted. When the signal for the galvanic treatment is output from the PWM generator 132, the output control unit 133 and the smoothing circuit unit 134 adjust the direction of the galvanic treatment output signal of the PWM generator 132 and DC smooth the DC element. Applied to 110, the galvanic treatment can be performed through the head 107.

On the other hand, as a general embodiment of the present invention, when the user selects the hot or cold stimulation through the switch unit 102, the microcomputer 131 recognizes the switch input signal for hot or cold stimulation to heat or cold stimulation Outputs a control signal to the PWM generator 132 to allow the heat or cold to be provided to the head 107 through the thermoelectric element 110. When the control signal for the hot or cold stimulation is output from the microcomputer 131 to the PWM generator 132, the PWM generator 132 is a PWM for hot or cold stimulation according to the output control signal of the microcomputer 131 A signal is generated and applied to the output control unit 133. The PWM signal output from the PWM generator 132 changes the duty ratio and waveform according to the control signal of the microcomputer 131. When the PWM signal is applied to the output control unit 133, the output control unit 133 controls the current direction (for example, 100 volts or -100 volts) to provide the heating or cooling heat to the head 107 in the direction of the PWM signal. It is applied to the smoothing circuit unit 134. The output of the output control unit 133 is smoothed in the smoothing circuit unit 134, the output smoothed in the smoothing circuit unit 134 is finally applied to the thermoelectric element 100 to cause a thermoelectric effect corresponding to the heat or cold heat, at this time heat dissipation The fan driving unit 137 of the unit 200 is driven under the control of the microcomputer 131 to smoothly provide heat or heat through the head 107. The display unit 104 is driven by the display driving unit 138 controlled by the microcomputer 138 to indicate that a hot stimulus or a cold stimulus is being performed. During hot or cold stimulation, the user can operate the switch 102 to adjust the surface temperature of the head 107. It is apparent that such temperature control may be performed by those skilled in the art by applying well-known temperature control techniques to the microcomputer 138 and the PWM generator 132.

On the other hand, if the user selects the automatic heating stimulation through the switch 102, the microcomputer 131 is a thermal stimulation and cold heat stimulation at a predetermined time interval in the surface temperature of the head 107 ranges from -5 ℃ ~ +45 ℃ It is possible to output a control signal to be controlled alternately. In this case, by maintaining the skin's elasticity by lowering the temperature of the skin during cold and hot stimulation, and by increasing the temperature of the skin during the thermal stimulation, the pores are opened to escape the aging keratin, waste and sebum, etc. have.

So far, the present invention has been described with reference to the embodiments shown in the drawings, which are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. will be.

Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100: skin beauty device 105: case
107: head 120: heat dissipation unit
122: bottom pipe 127: blowing fan
130: circuit control unit 131: microcomputer
132: PWM generator 133: output controller

Claims (7)

In the skin beauty machine,
A thermoelectric element in which the heating and cooling directions are switched in accordance with the current direction of the power supply to generate heat and endothermic;
A heat dissipation unit including a heat pipe for cooling heat generated by the thermoelectric element, and a heat dissipation fin coupled to the heat pipe to dissipate heat transferred to the heat pipe;
A circuit controller for controlling the operation of the thermoelectric element;
A case in which the thermoelectric element, the heat dissipation part, and the circuit control part are built in, and a cold / hot selection switch is installed on a surface thereof to configure an appearance of the skin care device; And
A head installed in the front part of the case so as to contact the skin of the user,
The circuit control unit includes: a microcomputer which receives a signal of the cold / hot selection switch and outputs a control signal of a variable frequency as a control signal for controlling the thermoelectric element; A PWM generator for outputting a PWM signal according to the control signal of the microcomputer; An output controller for controlling the direction of the output of the PWM generator; And a smoothing circuit unit for smoothing the output of the output control unit. The method of claim 1,
The heat dissipation unit is a cold beauty variable skin care device, characterized in that it comprises a blowing fan for discharging the cold and heat to the outside. The method of claim 1,
The circuit controller controls the heat dissipation unit so that the temperature of the head is controlled in the range of -5 ° C to + 45 ° C. The method of claim 3,
The circuit controller controls the thermoelectric element and the heat dissipation unit so as to stimulate the skin at a predetermined time interval in the temperature range of -5 ° C to +45 ° C. The method of claim 3,
The circuit controller controls the heat dissipation unit so that cold and heat are alternately provided at predetermined intervals through the head, thereby allowing cryoelectrophoresis to be applied. The method of claim 3,
Wherein said circuit control unit provides a galvanic DC output to said head for galvanic treatment. The method of claim 1,
The ground of the circuit control unit is connected to the case, when the user gripping the skin beauty device, the cold and tunable skin care device, characterized in that the ground of the circuit control unit is connected to the ground through the human body.

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