Safe and energy-saving multifunctional eye cream massage instrument and control circuit thereof

Abstract

The invention relates to a safe and energy-saving multifunctional eye cream massage instrument control circuit, which comprises a heating / refrigerating module, a power supply module, a power supply module and a control module, and is characterized in that the heating / refrigerating module comprises a DC-DC circuit and an H-bridge circuit; the vibration module comprises a motor control circuit and is used for providing a vibration effect for the eye cream massage end; the control circuit module comprises a charging circuit, a main control circuit and a temperature detection circuit; the input end of the charging circuit is connected with the charging interface, and the output end of the charging circuit provides working voltage for the main control circuit, the temperature detection circuit, the motor control circuit and the DC-DC circuit. The master control circuit comprises a power-off circuit and a second control chip U2. According to the safe and energy-saving multifunctional eye cream massage instrument control circuit, a lithium battery power supply is completely disconnected during standby, zero power consumption is achieved during standby, transportation safety is guaranteed, and factory electric quantity is kept to be used by a user for the first time.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cosmetic packaging, in particular to a safe and energy-saving multifunctional eye cream massage instrument control circuit. BACKGROUND

[0002] With the continuous development of technology, the products in the field of cosmetic packaging are gradually becoming more exquisite and modern. For example, early eye cream products were mostly commonly used in bottles or tubes. With the improvement of people's living standards and the continuous pursuit of material and cultural life, multifunctional eye creams have been designed, and eye creams with massage functions have been introduced to the market and loved by consumers. The eye cream with massage function is installed with a massage head at the head of the product. After the eye cream is applied around the eyes, the massage head is used to circulate around the eyes for massage, which can accelerate the absorption of the eye cream by the skin. For example, the utility model patent with the patent application publication number CN217707040U discloses a heating and vibrating eye cream massage bottle cap, which comprises a vibrating module, a heating module and a control circuit board. The utility model can realize precise heating and massage of eye acupoints, which is beneficial to improving the effect of eye massage. Multifunctional eye creams still have many exploration spaces. However, multifunctional eye creams usually involve digital circuits, and there is static power consumption when the chip is on standby. There are regulations on safe transportation of products by sea and air transportation. Reliable power-off devices are required for the products. There is also a certain risk when users store electronic products with power on at home. Therefore, the safety of multifunctional eye cream products and users, as well as the transportation safety, still need to be improved. SUMMARY

[0003] In order to overcome at least one of the above problems, the present application provides a safe and energy-saving multifunctional eye cream massage instrument control circuit, which completely disconnects the lithium battery power supply when on standby, has 0 standby power consumption, ensures transportation safety, and maintains the factory power to the first use of the user.

[0004] The technical solution adopted by the present application to solve its technical problems is: a safe and energy-saving multifunctional eye cream massage instrument control circuit, comprising: a heating / cooling module comprising a DC-DC circuit and an H-bridge circuit, used for heating or cooling the eye cream massage end;

[0005] A vibrating module comprising a motor control circuit for providing a vibrating effect to the eye cream massage end;

[0006] A control circuit module comprising a charging circuit, a main control circuit and a temperature detection circuit; the input end of the charging circuit is connected with a charging interface, and the output end provides working voltage for the main control circuit, the temperature detection circuit, the motor control circuit and the DC-DC circuit; the working voltage is output as a stabilized voltage after being stepped down by the DC-DC circuit to supply power to the H-bridge circuit;

[0007] The master control circuit includes a power-off circuit and a second control chip U2, and the power supply voltage is input from the power supply pin of the second control chip U2 to supply power for the second control chip U2; the charging detection pin and the charging state pin of the second control chip U2 are connected to the charging circuit; the motor control pin of the second control chip U2 is connected to the motor control circuit; the temperature detection pin of the second control chip U2 is connected to the temperature detection circuit; the switch control pin of the second control chip U2 is connected to the power-off circuit; the enable pin of the second control chip U2 is connected to the DC-DC circuit; the output one pin and the output two pin of the second control chip U2 are respectively connected to the H-bridge circuit; and the ground pin of the second control chip U2 is grounded.

[0008] The charging circuit includes a first control chip U1, a lithium battery BT1, a third resistor R3, a seventh resistor R7, a sixth resistor R6, a third capacitor C3 and a second capacitor C2; the power supply pin of the first control chip U1 is led out as an input end of the charging circuit; one end of the third resistor R3 is connected to the power supply pin of the first control chip U1, the other end is connected to the ground through the seventh resistor R7, and the other end is connected to the charging state pin of the second control chip U2; the third capacitor C3 is connected between the power supply pin of the first control chip U1 and the ground; the sixth resistor R6 is connected between the PROG pin of the first control chip U1 and the ground; the battery charging pin of the first control chip U1 charges the lithium battery BT1; the positive electrode of the lithium battery BT1 outputs a working voltage as an output end of the charging circuit; the second capacitor C2 is connected in parallel between the positive and negative electrodes of the lithium battery BT1; the ground pin of the first control chip U1 is grounded; and the charging detection pin of the first control chip U1 is connected to the charging detection pin of the second control chip U2.

[0009] The power-off circuit includes a transistor Q2, a diode D1, a fourth resistor R4, a second resistor R2, a first MOS tube Q1 and a touch switch SW1; the base of the transistor Q2 is connected to the switch control pin of the second control chip U2, the emitter of the transistor Q2 is grounded, the positive electrode of the diode D1 is connected to the collector of the transistor Q2, the negative electrode of the diode D1 is connected to the touch switch SW1, and the other end of the touch switch SW1 is grounded; the collector of the transistor Q2 is further connected to the fourth resistor R4, the second resistor R2 and the first MOS tube Q1; the input voltage is respectively connected to the drain of the first MOS tube Q1 and the gate of the first MOS tube Q1 through one end of the second resistor R2; the source of the first MOS tube Q1 is connected to the battery voltage; and the gate of the first MOS tube Q1 is connected to the collector of the transistor Q2 through the fourth resistor R4.

[0010] As a preferred, the first capacitor C1 is connected between the power supply pin and the ground pin of the second control chip U2.

[0011] As preferred, the DC-DC circuit comprises a third control chip U3, an eighth resistor R8, a tenth resistor R10, a seventh capacitor C7, a fifth capacitor C5, a sixth capacitor C6 and a first inductor L1; an input pin of the third control chip U3 inputs the working voltage; the sixth capacitor C6 is connected between an input pin and ground of the third control chip U3; the working voltage is output from a switch control pin of the third control chip U3 after being stabilized by the third control chip U3, and then a stabilized voltage is output to the H-bridge circuit for power supply after passing through the first inductor L1; an enable pin of the third control chip U3 is connected to an enable pin of the second control chip U2; a ground pin of the third control chip U3 is grounded; a feedback pin of the third control chip U3 is connected to one end of the eighth resistor R8, one end of the tenth resistor R10 and one end of the fifth capacitor C5; the other end of the eighth resistor R8 is grounded; one end of the seventh capacitor C7, the other end of the tenth resistor R10 and the other end of the fifth capacitor C5 are connected to one end of the first inductor L1 away from the switch control pin of the third control chip U3; the other end of the seventh capacitor C7 is grounded.

[0012] As preferred, the H-bridge circuit comprises a fourth MOS tube Q4, a fifth MOS tube Q5, a sixth MOS tube Q6, a seventh MOS tube Q7, a fourteenth resistor R14, a fifteenth resistor R15, a seventeenth resistor R17, a twelfth resistor R12, a ninth resistor R9, an eighteenth resistor R18 and a first lead terminal J1; the stabilized voltage is input to the H-bridge circuit from the drain of the fourth MOS tube Q4 and the drain of the fifth MOS tube Q5; the fourteenth resistor R14 is connected between the drain and the gate of the fifth MOS tube Q5; one end of the fifteenth resistor R15 is connected to the gate of the fifth MOS tube Q5; one end of the seventeenth resistor R17 is connected to the gate of the seventh MOS tube Q7; the other end of the fifteenth resistor R15 and the other end of the seventeenth resistor R17 are connected to the output two pin of the second control chip U2; the twelfth resistor R12 is connected between the drain and the gate of the fourth MOS tube Q4; one end of the ninth resistor R9 is connected to the gate of the fourth MOS tube Q4; one end of the eighteenth resistor R18 is connected to the gate of the sixth MOS tube Q6; the other end of the ninth resistor R9 and the other end of the eighteenth resistor R18 are connected to the output one pin of the second control chip U2; the first pin of the first lead terminal J1 is connected to the source of the fifth MOS tube Q5 and the drain of the seventh MOS tube Q7; the second pin of the first lead terminal J1 is connected to the source of the fourth MOS tube Q4 and the drain of the sixth MOS tube Q6; the source of the seventh MOS tube Q7 and the source of the sixth MOS tube Q6 are grounded.

[0013] As preferred, the motor control circuit comprises a third MOS tube Q3, an eleventh resistor R11, a fourteenth resistor R14, an eighth capacitor C8 and a second lead terminal J2; the working voltage is inputted into the motor control circuit from one end of the eleventh resistor R11 and the drain of the third MOS tube Q3; the other end of the eleventh resistor R11 is connected to the gate of the third MOS tube Q3 and one end of the fourteenth resistor R14; the other end of the fourteenth resistor R14 is connected to the motor control pin of the second control chip U2; the source of the third MOS tube Q3 is connected to the first pin of the second lead terminal J2; the second pin of the second lead terminal J2 is grounded; and the eighth capacitor C8 is connected between the two pins of the second lead terminal J2.

[0014] As preferred, the temperature detection circuit comprises a first resistor R1, a fourth capacitor C4 and a fifth resistor R5; the fifth resistor R5 is a thermistor; the working voltage is inputted into the temperature detection circuit from one end of the first resistor R1, and the other end of the first resistor R1 is connected to one end of the fifth resistor R5 and the temperature detection pin of the second control chip U2; the other end of the fifth resistor R5 is grounded; and the fourth capacitor C4 is connected in parallel across the fifth resistor R5.

[0015] As preferred, the LED circuit is further provided, which is powered by the working voltage; and the three LED circuit control pins of the second control chip U2 are respectively connected to the LED circuit.

[0016] As preferred, the LED circuit comprises a ninth resistor R9 and a light emitting diode group LED; the light emitting diode group LED comprises a first light emitting diode, a second light emitting diode and a third light emitting diode; the working voltage is inputted from one end of the ninth resistor R9; the other end of the ninth resistor R9 is respectively connected to the positive electrode of the first light emitting diode, the positive electrode of the second light emitting diode and the positive electrode of the third light emitting diode; the negative electrode of the first light emitting diode is connected to the first LED circuit control pin of the second control chip U2, the negative electrode of the second light emitting diode is connected to the second LED circuit control pin of the second control chip U2, and the negative electrode of the third light emitting diode is connected to the third LED circuit control pin of the second control chip U2.

[0017] The application also provides a safe and energy-saving multifunctional eye cream massage instrument, which comprises a refrigeration / heat plate and a massage head, and further comprises the eye cream massage instrument control circuit, the eye cream massage instrument has four working modes, namely, vibration, refrigeration, heating and standby; the refrigeration / heat plate is connected with the H-bridge circuit in the eye cream massage instrument control circuit and is controlled by the H-bridge circuit to work in the refrigeration or heating mode; the refrigeration / heat plate is arranged in contact with the massage head, so that the temperature of the refrigeration / heat plate is transmitted to the massage head; the motor control circuit in the control circuit controls the vibration or stop of the motor, and the vibration is transmitted to the massage head; the refrigeration / heat plate is made of copper substrate material.

[0018] The lithium battery power supply is completely disconnected during standby, the standby power consumption is 0, the transportation safety is ensured, the factory power is maintained to the first use of the user, and the cold compress and hot compress functions are simultaneously provided, the heating and refrigeration switching of the eye cream massage instrument is realized through the H-bridge circuit, the hot compress and cold compress functions are simultaneously provided, and the needs of most consumers can be met. Moreover, the eye cream massage instrument is more compact and convenient to carry than the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0019] The application will be further described below in combination with the drawings and examples.

[0020] Figure 1 is the safe and energy-saving multifunctional eye cream massage instrument control circuit diagram of the application;

[0021] Figure 2 is the charging circuit principle diagram of the application;

[0022] Figure 3 is the main control circuit principle diagram of the application;

[0023] Figure 4 is the DC-DC circuit principle diagram of the application;

[0024] Figure 5 is the H-bridge circuit principle diagram of the application;

[0025] Figure 6 is the motor control circuit principle diagram of the application;

[0026] Figure 7 is the temperature detection circuit principle diagram of the application;

[0027] Figure 8 is the LED circuit principle diagram of the application;

[0028] Figure 9 is the schematic diagram of the safe and energy-saving multifunctional eye cream massage instrument of the application. DETAILED DESCRIPTION

[0029] The application will be described in further detail below with reference to the drawings. These drawings are simplified schematic diagrams which only show the basic structure of the application in a schematic manner, and therefore only show the components relevant to the application.

[0030] The present disclosure is described below by way of specific embodiments, and those skilled in the art will readily understand other advantages and purposes of the present disclosure from the description of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, and are not all the embodiments. The present disclosure can also be implemented or applied by other different specific embodiments, and the details in the description can be modified or changed based on different views and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present disclosure.

[0031] Embodiment 1

[0032] The safe and energy-saving multifunctional eye cream massage instrument control circuit has a cold-hot alternating function, and has cold and hot compress functions, vibration, light prompting functions, and is completely disconnected from the lithium battery power supply when on standby, has 0 standby power consumption, ensures transportation safety, and keeps the factory power to the first use of the user. It contains a heating / cooling module, a vibration module, and a control circuit module.

[0033] As shown in Figure 1 , the heating / cooling module is composed of a DC-DC circuit and an H-bridge circuit, which is used to heat or cool the eye cream massage end. The vibration module is composed of a motor control circuit, which is used to provide vibration effect for the eye cream massage end. The control circuit module is composed of a charging circuit, a main control circuit, and a temperature detection circuit; the input end of the charging circuit is connected to the charging interface, and the output end respectively provides working voltage for the main control circuit, the temperature detection circuit, the motor control circuit and the DC-DC circuit; the working voltage is output after being reduced by the DC-DC circuit to provide stable voltage for the H-bridge circuit.

[0034] As shown in Figure 3 , the main control circuit includes a power-off circuit and a second control chip U2.

[0035] The second control chip U2 at least includes a first pin for power supply, a second pin for charging detection, a third pin for charging state, a fourth pin for switch control, a fifth pin for motor control MADA, sixth / seventh / eighth pins for three LED circuit control LED2 / LED3 / LED1, a ninth pin for temperature detection TEST1, an eleventh pin for enable EN, a twelfth pin for output one OUT1, a thirteenth pin for output two OUT2, and a fourteenth pin for ground. The power supply voltage +BT output by the charging circuit is input from the power supply pin of the second control chip U2 to supply power to the second control chip U2. The charging detection pin and the charging state pin of the second control chip U2 are connected to the charging circuit. The motor control pin MADA of the second control chip U2 is connected to the motor control circuit. The LED circuit control pins LED1 / LED2 / LED3 of the second control chip U2 are connected to the LED circuit. The temperature detection pin TEST1 of the second control chip U2 is connected to the temperature detection circuit. The switch control pin of the second control chip U2 is connected to the touch switch SW1. The enable pin EN of the second control chip U2 is connected to the DC-DC circuit. The output one pin OUT1 and the output two pin OUT2 of the second control chip U2 are connected to the H-bridge circuit. The ground pin of the second control chip U2 is grounded.

[0036] A first capacitor C1 is connected between the first pin and the fourteenth pin of the second control chip U2, and the first capacitor C1 is a bypass circuit for filtering high-frequency signals.

[0037] The LED circuit is a preferred technical solution, and the addition of the LED circuit can directly observe the charging state and working state of the eye cream massage. Removing the LED circuit does not affect the normal operation of the eye cream massage.

[0038] The charging interface connects the charger to output +5V voltage to the input end of the charging circuit, and the charging circuit provides working voltage +BT for the subsequent other modules after being fully charged. The charging state pin of the second control chip U2 detects the charging state of the charging circuit, and when it is in the charging state, the 7th pin LED3 of the second control chip U2 outputs low level to control the red light of the LED circuit to light. When it is fully charged, the 6th pin LED2 of the second control chip U2 outputs low level to control the green light of the LED circuit to light. In the charging state, the second control chip U2 controls the eye cream massager not to work. After being fully charged, the eye cream massager is in a working state. Press the first lower tactile switch SW1, and the main control circuit controls the motor control circuit to work through the motor control pin MADA, and the motor starts to vibrate, and the vibration is transmitted to the massage head of the eye cream massager; at the same time, the main control circuit controls the LED circuit green light to light through the 8th pin LED1. Press the second lower tactile switch SW1, and the main control circuit controls the H-bridge circuit to provide 1.8V stable voltage through the enable pin EN of the DC-DC circuit, and the main control circuit controls the H-bridge circuit through the 13th pin output two pins, so that the H-bridge circuit controls the refrigeration / heat sheet to heat to a constant temperature of 40℃ within 10 seconds; at the same time, the main control circuit controls the motor control circuit to stop working through the motor control pin MADA, and the eye cream massager stops vibrating, and the main control circuit controls the LED circuit red light to light through the 7th pin LED3. Press the third lower tactile switch SW1, and the main control circuit controls the H-bridge circuit through the 12th pin output one pin, so that the H-bridge circuit controls the refrigeration / heat sheet to cool down within 30 seconds, and the minimum temperature is 17℃; at the same time, the motor control circuit is still in the stop working state, and the main control circuit controls the LED circuit blue light to light through the 6th pin LED2. Press the fourth lower tactile switch SW1, and the main control circuit controls the DC-DC circuit and the H-bridge circuit to stop working, and the eye cream massager is in a standby state, until the next time the tactile switch is pressed, the working state of cyclic vibration-heating-cooling-standby is repeated.

[0039] When the refrigeration / heat sheet is in heating mode, the temperature detection circuit detects the temperature of the refrigeration / heat sheet, and when the temperature exceeds the set temperature threshold, the main control circuit controls the refrigeration / heat sheet to stop heating through the H-bridge circuit. When the refrigeration / heat sheet is in cooling mode, the main control circuit controls the refrigeration / heat sheet to stop cooling through the H-bridge circuit after the second control chip U2 counts down for 5 minutes.

[0040] The above is the working principle of the preferred technical solution. After removing the LED circuit, only the function of the indicator light is removed, and the working principle of the other parts remains unchanged.

[0041] As Figure 2As shown, the charging circuit includes a first control chip U1, a lithium battery BT1, a third resistor R3, a seventh resistor R7, a sixth resistor R6, a third capacitor C3 and a second capacitor C2; the fourth pin of the first control chip U1 is a power supply pin VCC, which is connected to the input end of the charging circuit and inputs a +5V voltage; one end of the third resistor R3 is connected to the power supply pin of the first control chip U1, the other end is connected to the ground through the seventh resistor R7, and the other end is connected to the charging state pin of the second control chip U2. The third capacitor C3 is connected between the power supply pin of the first control chip U1 and the ground, and functions as a filter. The sixth resistor R6 is connected between the PROG pin of the first control chip U1 and the ground; the battery charging pin of the first control chip U1 charges the lithium battery BT1; the positive electrode of the lithium battery BT1 outputs a working voltage +BT as the output end of the charging circuit. The second capacitor C2 is connected in parallel between the positive and negative electrodes of the lithium battery BT1, and functions to stabilize the output voltage of the lithium battery and filter out noise. The ground pin of the first control chip U1 is grounded. The first pin of the first control chip U1, the charging detection pin SHDN, is connected to the charging detection pin of the second control chip U2. The charging detection pin of the first control chip U1 is connected to the charging detection pin of the second control chip U2.

[0042] As shown in Figure 3 , the power-off circuit includes a transistor Q2, a diode D1, a fourth resistor R4, a second resistor R2, a first MOS tube Q1 and a touch switch SW1. The base of the transistor Q2 is connected to the switch control pin of the second control chip U2, the emitter of the transistor Q2 is grounded, the positive electrode of the diode D1 is connected to the collector of the transistor Q2, the negative electrode of the diode D1 is connected to the touch switch SW1, and the other end of the touch switch SW1 is grounded. The collector of the transistor Q2 is also connected to the fourth resistor R4, the second resistor R2 and the first MOS tube Q1. The input voltage is connected to the drain of the first MOS tube Q1 and the gate of the first MOS tube Q1 through the other end of the second resistor R2. The source of the first MOS tube Q1 is connected to the battery voltage. The gate of the first MOS tube Q1 is connected to the collector of the transistor Q2 through the fourth resistor R4.

[0043] When the touch switch SW1 is pressed for 2 seconds, the G pole (gate) of the first MOS tube Q1 is connected to GND through the fourth resistor R4 and the diode D1. At this time, the first MOS tube Q1 is turned on, the positive electrode voltage of the battery is supplied to the U2 master control chip through the S pole (source) to the D pole (drain) of the first MOS tube Q1, the fourth pin of the master control chip outputs a high level to make the second MOS tube Q2 conductive, and the G pole of the first MOS tube Q1 is connected to GND through the collector to the emitter of the second MOS tube Q2. At this time, the first MOS tube Q1 is long-term conductive. The positive electrode of the battery passes through the first MOS tube Q1 to conduct electricity to the circuit system.

[0044] Short press SW1 to switch the function. In turn for vibration, heating, cooling, off. When the button switch to off, the second control chip U2 pin 4 output low level, the second MOS tube Q2 off, the first MOS tube Q1 also off, the battery power off, standby for 0 current.

[0045] As shown in Figure 4 DC-DC circuit includes a third control chip U3, eighth resistor R8, tenth resistor R10, seventh capacitor C7, fifth capacitor C5, sixth capacitor C6 and the first inductor L1. The fourth pin of the third control chip U3 input pin VIN input working voltage +BT. The input pin of the third control chip U3 and the ground are connected with the sixth capacitor C6, which plays a filtering role. After the working voltage is stabilized by the third control chip U3, it is output from the switch control pin of the third control chip U3, and then the first inductor L1 outputs the stabilized voltage to the H bridge circuit for power supply. The enable pin of the third control chip U3 is connected with the enable pin of the second control chip U2. The ground pin of the third control chip U3 is grounded. The feedback pin of the third control chip U3 is connected with one end of the eighth resistor R8, one end of the tenth resistor R10 and one end of the fifth capacitor C5. The other end of the eighth resistor R8 is grounded. One end of the seventh capacitor C7, the other end of the tenth resistor R10 and the other end of the fifth capacitor C5 are connected with one end of the first inductor L1 away from the switch control pin of the third control chip U3. The other end of the seventh capacitor C7 is grounded.

[0046] Further, as shown in Figure 5As shown, the H-bridge circuit includes a fourth MOSFET Q4, a fifth MOSFET Q5, a sixth MOSFET Q6, a seventh MOSFET Q7, a fourteenth resistor R14, a fifteenth resistor R15, a seventeenth resistor R17, a twelfth resistor R12, a ninth resistor R9, an eighteenth resistor R18, and a first lead terminal J1. A regulated voltage is input to the H-bridge circuit from the drains of the fourth MOSFET Q4 and the fifth MOSFET Q5. The fourteenth resistor R14 is connected between the drain and gate of the fifth MOSFET Q5. One end of the fifteenth resistor R15 is connected to the gate of the fifth MOSFET Q5. One end of the seventeenth resistor R17 is connected to the gate of the seventh MOSFET Q7. The other end of the fifteenth resistor R15 and the seventeenth resistor R17... The other end is connected to the output pin 2 of the second control chip U2; the twelfth resistor R12 is connected between the drain and gate of the fourth MOSFET Q4; one end of the ninth resistor R9 is connected to the gate of the fourth MOSFET Q4; one end of the eighteenth resistor R18 is connected to the gate of the sixth MOSFET Q6; the other ends of the ninth resistor R9 and the eighteenth resistor R18 are connected to the output pin 1 of the second control chip U2; the first pin of the first lead terminal J1 is connected to the source of the fifth MOSFET Q5 and the drain of the seventh MOSFET Q7; the second pin of the first lead terminal J1 is connected to the source of the fourth MOSFET Q4 and the drain of the sixth MOSFET Q6; the source of the seventh MOSFET Q7 and the source of the sixth MOSFET Q6 are grounded. The two pins of the first lead terminal J1 are connected to the cooling / heating element via leads.

[0047] Furthermore, such as Figure 6 As shown, the motor control circuit includes a third MOSFET Q3, an eleventh resistor R11, a fourteenth resistor R14, an eighth capacitor C8, and a second terminal J2. The operating voltage is input to the motor control circuit from one end of the eleventh resistor R11 and the drain of the third MOSFET Q3. The other end of the eleventh resistor R11 is connected to the gate of the third MOSFET Q3 and one end of the fourteenth resistor R14. The other end of the fourteenth resistor R14 is connected to the motor control pin of the second control chip U2. The source of the third MOSFET Q3 is connected to the first pin of the second terminal J2. The second pin of the second terminal J2 is grounded. The eighth capacitor C8 is connected between the two pins of the second terminal J2.

[0048] Furthermore, such as Figure 7 As shown, the temperature detection circuit includes a first resistor R1, a fourth capacitor C4, and a fifth resistor R5; the fifth resistor R5 is a thermistor; the operating voltage is input to the temperature detection circuit from one end of the first resistor R1, and the other end of the first resistor R1 is connected to one end of the fifth resistor R5 and the temperature detection pin of the second control chip U2; the other end of the fifth resistor R5 is grounded; the fourth capacitor C4 is connected in parallel across the fifth resistor R5.

[0049] Furthermore, such asFigure 8 As shown in the LED circuit, the LED circuit is powered by the working voltage; the three LED circuit control pins of the second control chip U2 are connected with the LED circuit respectively.

[0050] As shown in the LED circuit, the LED circuit is powered by the working voltage; the three LED circuit control pins of the second control chip U2 are connected with the LED circuit respectively. Figure 8 As shown in the LED circuit, the LED circuit is powered by the working voltage; the three LED circuit control pins of the second control chip U2 are connected with the LED circuit respectively.

[0051] The charging interface outputs +5V voltage to the input end of the charging circuit after connecting the charger, and the +5V voltage is divided by the third resistor R3 and the second resistor R7. The voltage at the node of the third resistor R3 and the second resistor R7 is detected by the third pin of the second control chip U2. When the node has voltage, it indicates that the charging circuit is in the state of charging. At this time, the third light emitting diode in the LED circuit is lit and emits red light by the low level output of the seventh pin LED3 of the second control chip U2. The 5V voltage is input to the fourth pin of the first control chip U1, and the 4.2V voltage is output from the third pin to charge the lithium battery BT1. After the lithium battery BT1 is fully charged, the first pin of the first control chip U1 outputs high level to the second pin of the second control chip U2, and the second control chip U2 outputs low level by the eighth pin LED1 to control the first light emitting diode in the LED circuit to light and emit green light. The eye cream massager does not work under the charging state.

[0052] As shown in the LED circuit, the LED circuit is powered by the working voltage; the three LED circuit control pins of the second control chip U2 are connected with the LED circuit respectively. Figure 3 As shown in the LED circuit, the LED circuit is powered by the working voltage; the three LED circuit control pins of the second control chip U2 are connected with the LED circuit respectively.

[0053] When the light touch switch SW1 is pressed to switch to the vibration mode, the 5th pin of the second control chip U2 outputs high level to the gate of the MOS tube Q3, the MOS tube Q3 is turned on, and the motor is powered on to start vibrating. The 8th pin of the second control chip U2 controls the first light emitting diode green light to be on. When the light touch switch SW1 is pressed to switch to the refrigeration, heating or shutdown mode, the 5th pin of the second control chip U2 outputs low level to the gate of the MOS tube Q3, the MOS tube Q3 is turned off, and the motor stops vibrating.

[0054] The working voltage +BT output by the lithium battery BT1 is filtered by the sixth capacitor C6 to supply power to the third control chip U3, and after being stabilized by the third control chip U3, the voltage output from the 3rd pin of the third control chip U3 is divided by the tenth resistor R10 and the eighth resistor R8, and then a constant current and constant voltage of 1.8V is output to supply power to the H-bridge circuit. The 1st pin EN of the third control chip U3 is an enable end. When the light touch switch SW1 is pressed for the first time, the eye cream massager is powered on, the 11th pin of the second control chip U2 outputs high level, and after the 1st pin of the third control chip U3 detects high level, it enters the working state, converts the input +5V voltage into a constant voltage and constant current of 1.8V stabilized voltage to supply power to the H-bridge circuit. The capacitors C5 and C7 have a filtering effect. The output 1.8V stabilized voltage is fed back to the 5th pin of the third control chip U3 through the resistor R10, and the third control chip adjusts the output stabilized voltage to 1.8V according to the feedback voltage. When the eye cream massager is powered off, the 4th pin of the second control chip U2 outputs low level, the second MOS tube Q2 is cut off, the first MOS tube Q1 is also cut off, the battery power supply is cut off, and the standby current is 0.

[0055] Referring to Figure 5 , the MOS tubes Q4, Q5, Q6 and Q7 form an H-bridge to supply power to the refrigeration / heating sheet and switch the power supply positive and negative directions to control the refrigeration / heating mode. When the light touch switch SW1 is switched to the refrigeration mode, the second light emitting diode blue light is on, the 13th pin of the second control chip U2 outputs high level after current limiting by the resistor R17 to make the MOS tube Q7 conductive. The 12th pin of the second control chip U2 outputs low level through the resistor R16 to make the MOS tube Q4 conductive, and the refrigeration / heating sheet works in the refrigeration mode at this time. The refrigeration mode stops after 5 minutes of countdown work by the second control chip U2. When the light touch switch SW1 is switched to the heating mode, the third light emitting diode red light is on, the 13th pin of the second control chip U2 outputs low level, and the 12th pin outputs high level to make the MOS tube Q5 and the MOS tube Q6 conductive, and the voltage applied to the refrigeration / heating sheet is opposite at this time, and the refrigeration / heating sheet is in the heating mode.

[0056] Referring to Figure 7The temperature detection circuit is composed of the capacitor C4, the resistor R1 and the thermistor R5. The 9th pin of the second control chip U2 detects the voltage of the node of the resistor R1 and the thermistor R5 in series. When the temperature of the refrigeration / heat sheet rises, the resistance of the thermistor R5 becomes smaller. When the voltage value detected by the 9th pin of the second control chip U2 exceeds the set threshold value, the switching time of the MOS tube Q5 and the MOS tube Q6 is controlled by the 12th pin and the 13th pin of the second control chip U2, so that the temperature of the refrigeration / heat sheet is controlled at 40℃ constant temperature.

[0057] The second control chip U2 of the present application is a programmable single-chip microcomputer, and other circuits are all driven by the second control chip U2. The switching sequence of the touch switch SW1 of the embodiment is: starting vibration, heating, refrigeration, and shutdown. The sequence can also be adjusted to other sequences according to the needs of customers, such as vibration, refrigeration, heating, and shutdown. The arrangement of the specific sequence should not be regarded as a limitation on the present application.

[0058] Embodiment 2

[0059] Reference Figure 9 The safe and energy-saving multifunctional eye cream massager includes a massaging head 100, the massaging head 100 has the refrigeration / heat sheet in embodiment 1, and a seat body 101 is arranged below the massaging head 100. The safe and energy-saving multifunctional eye cream massager control circuit in embodiment 1 is arranged in the seat body 101. The eye cream massager has four working modes, which are vibration, refrigeration, heating, and shutdown, respectively. The refrigeration / heat sheet is connected to the H-bridge circuit in the eye cream massager control circuit and is controlled by the H-bridge circuit to work in the refrigeration or heating mode. The refrigeration / heat sheet is arranged in contact with the massaging head, so that the temperature of the refrigeration / heat sheet is transmitted to the massaging head. The motor control circuit in the control circuit controls the vibration or stop of the motor, and the vibration is transmitted to the massaging head. The refrigeration / heat sheet is made of copper substrate material. When the eye cream massager is in standby / shutdown, the 4th pin of the second control chip U2 outputs a low level, the second MOS tube Q2 is cut off, the first MOS tube Q1 is also cut off, the battery power supply is cut off, and the standby current is 0.

[0060] Based on the above ideal embodiments according to the present application, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content in the specification, and must be determined according to the scope of claims.

Claims

1. A safe and energy-saving multifunctional eye cream massage instrument control circuit, characterized in that, The application relates to an eye cream massager, which comprises the following parts: a heating / cooling module, which comprises a DC-DC circuit and an H-bridge circuit, and is used for heating or cooling the eye cream massaging end; a vibration module, which comprises a motor control circuit and is used for providing a vibration effect for the eye cream massaging end; a control circuit module, which comprises a charging circuit, a main control circuit and a temperature detection circuit; the input end of the charging circuit is connected with a charging interface, and the output end of the charging circuit provides working voltages for the main control circuit, the temperature detection circuit, the motor control circuit and the DC-DC circuit; the working voltages are output as stabilized voltages for the H-bridge circuit after being stepped down by the DC-DC circuit; the main control circuit comprises a power-off circuit and a second control chip (U2), the power supply voltage is input from the power supply pin of the second control chip (U2) to supply power for the second control chip (U2); the charging detection pin and the charging state pin of the second control chip (U2) are connected with the charging circuit; the motor control pin of the second control chip (U2) is connected with the motor control circuit; the temperature detection pin of the second control chip (U2) is connected with the temperature detection circuit; the switch control pin of the second control chip (U2) is connected with the power-off circuit; the enable pin of the second control chip (U2) is connected with the DC-DC circuit; the output one pin and the output two pin of the second control chip (U2) are connected with the H-bridge circuit respectively; and the ground pin of the second control chip (U2) is grounded; the charging circuit comprises a first control chip (U1), a lithium battery (BT1), a third resistor (R3), a seventh resistor (R7), a sixth resistor (R6), a third capacitor (C3) and a second capacitor (C2); the power supply pin of the first control chip (U1) is led out as the input end of the charging circuit; one end of the third resistor (R3) is connected with the power supply pin of the first control chip (U1), the other end is connected with the seventh resistor (R7) and then grounded, and the other end is connected with the charging state pin of the second control chip (U2); the third capacitor (C3) is connected between the power supply pin of the first control chip (U1) and the ground; the sixth resistor (R6) is connected between the PROG pin of the first control chip (U1) and the ground; the battery charging pin of the first control chip (U1) is used for charging the lithium battery (BT1); the positive pole of the lithium battery (BT1) is used as the output end of the charging circuit to output the working voltage; the second capacitor (C2) is connected in parallel between the positive pole and the negative pole of the lithium battery (BT1); the ground pin of the first control chip (U1) is grounded; and the charging detection pin of the first control chip (U1) is connected with the charging detection pin of the second control chip (U2). The power-off circuit includes a transistor (Q2), a diode (D1), a fourth resistor (R4), a second resistor (R2), a first MOS tube (Q1), a touch switch (SW1), the base of the transistor (Q2) is connected to the switch control pin of the second control chip (U2), the emitter of the transistor (Q2) is grounded, the anode of the diode (D1) is connected to the collector of the transistor (Q2), the cathode of the diode (D1) is connected with the touch switch (SW1), the other end of the touch switch (SW1) is grounded; the collector of the transistor (Q2) is also connected with the fourth resistor (R4), the second resistor (R2) and the first MOS tube (Q1), the input voltage is connected to the drain of the first MOS tube (Q1) and the gate of the first MOS tube (Q1) from one end of the second resistor (R2), the source of the first MOS tube (Q1) is connected to the battery voltage; the gate of the first MOS tube (Q1) is connected to the collector of the transistor (Q2) through the fourth resistor (R4).

2. The safe, energy-saving multifunctional eye cream massage instrument control circuit according to claim 1, characterized in that: The first capacitor (C1) is connected between the power supply pin and the ground pin of the second control chip (U2).

3. The safe, energy-saving multifunctional eye cream massage instrument control circuit according to claim 2, characterized in that: The DC-DC circuit includes a third control chip (U3), an eighth resistor (R8), a tenth resistor (R10), a seventh capacitor (C7), a fifth capacitor (C5), a sixth capacitor (C6) and a first inductor (L1); the input pin of the third control chip (U3) inputs the working voltage; the sixth capacitor (C6) is connected between the input pin and the ground of the third control chip (U3); the working voltage is stabilized by the third control chip (U3), and then output from the switch control pin of the third control chip (U3), and then output the stabilized voltage to the H-bridge circuit through the first inductor (L1) for power supply; the enable pin of the third control chip (U3) is connected with the enable pin of the second control chip (U2); the ground pin of the third control chip (U3) is grounded; the feedback pin of the third control chip (U3) is connected with one end of the eighth resistor (R8), one end of the tenth resistor (R10) and one end of the fifth capacitor (C5); the other end of the eighth resistor (R8) is grounded; one end of the seventh capacitor (C7), the other end of the tenth resistor (R10) and the other end of the fifth capacitor (C5) are connected with one end of the first inductor (L1) away from the switch control pin of the third control chip (U3); the other end of the seventh capacitor (C7) is grounded.

4. The safe energy-saving multifunctional eye cream massage instrument control circuit according to claim 1, characterized in that: The H bridge circuit includes a fourth MOS tube (Q4), a fifth MOS tube (Q5), a sixth MOS tube (Q6), a seventh MOS tube (Q7), a fourteenth resistor (R14), a fifteenth resistor (R15), a seventeenth resistor (R17), a twelfth resistor (R12), a ninth resistor (R9), an eighteenth resistor (R18) and a first lead terminal (J1); the stable voltage is input into the H bridge circuit from the drain of the fourth MOS tube (Q4) and the drain of the fifth MOS tube (Q5); the fourteenth resistor (R14) is connected between the drain and the gate of the fifth MOS tube (Q5); one end of the fifteenth resistor (R15) is connected to the gate of the fifth MOS tube (Q5); one end of the seventeenth resistor (R17) is connected to the gate of the seventh MOS tube (Q7); the other end of the fifteenth resistor (R15) and the other end of the seventeenth resistor (R17) are connected to the output two pin of the second control chip (U2); the twelfth resistor (R12) is connected between the drain and the gate of the fourth MOS tube (Q4); one end of the ninth resistor (R9) is connected to the gate of the fourth MOS tube (Q4); one end of the eighteenth resistor (R18) is connected to the gate of the sixth MOS tube (Q6); the other end of the ninth resistor (R9) and the other end of the eighteenth resistor (R18) are connected to the output one pin of the second control chip (U2); the first pin of the first lead terminal (J1) is connected to the source of the fifth MOS tube (Q5) and the drain of the seventh MOS tube (Q7); the second pin of the first lead terminal (J1) is connected to the source of the fourth MOS tube (Q4) and the drain of the sixth MOS tube (Q6); the source of the seventh MOS tube (Q7) and the source of the sixth MOS tube (Q6) are grounded.

5. The safe energy-saving multifunctional eye cream massage instrument control circuit according to claim 1, characterized in that: The motor control circuit includes a third MOS tube (Q3), an eleventh resistor (R11), a fourteenth resistor (R14), an eighth capacitor (C8) and a second lead terminal (J2); the working voltage is input into the motor control circuit from one end of the eleventh resistor (R11) and the drain of the third MOS tube (Q3); the other end of the eleventh resistor (R11) is connected to the gate of the third MOS tube (Q3) and one end of the fourteenth resistor (R14); the other end of the fourteenth resistor (R14) is connected to the motor control pin of the second control chip (U2); the source of the third MOS tube (Q3) is connected to the first pin of the second lead terminal (J2); the second pin of the second lead terminal (J2) is grounded; the eighth capacitor (C8) is connected between the two pins of the second lead terminal (J2).

6. The safe energy-saving multifunctional eye cream massage instrument control circuit according to claim 1, characterized in that: The temperature detection circuit comprises a first resistor (R1), a fourth capacitor (C4) and a fifth resistor (R5); the fifth resistor (R1) is a thermistor; the working voltage is input into the temperature detection circuit from one end of the first resistor (R1), the other end of the first resistor (R1) is connected with one end of the fifth resistor (R5) and a temperature detection pin of the second control chip (U2); the other end of the fifth resistor (R5) is grounded; and the fourth capacitor (C4) is connected in parallel across the fifth resistor (R5).

7. The safe, energy-saving multifunctional eye cream massage instrument control circuit according to claim 6, characterized in that: The LED circuit is also included, which is powered by the working voltage; three LED circuit control pins of the second control chip (U2) are respectively connected with the LED circuit.

8. The safe energy-saving multifunctional eye cream massage instrument control circuit according to claim 7, characterized in that: The LED circuit comprises a ninth resistor (R9) and a light emitting diode group (LED); the light emitting diode group (LED) comprises a first light emitting diode, a second light emitting diode and a third light emitting diode; the working voltage is input from one end of the ninth resistor (R9); the other end of the ninth resistor (R9) is respectively connected with the positive electrode of the first light emitting diode, the positive electrode of the second light emitting diode and the positive electrode of the third light emitting diode; the negative electrode of the first light emitting diode is connected with the first LED circuit control pin of the second control chip (U2), the negative electrode of the second light emitting diode is connected with the second LED circuit control pin of the second control chip (U2), and the negative electrode of the third light emitting diode is connected with the third LED circuit control pin of the second control chip (U2).

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