CN117357392A - Eye cream massager with cold-hot alternating function and control circuit thereof - Google Patents

Eye cream massager with cold-hot alternating function and control circuit thereof Download PDF

Info

Publication number
CN117357392A
CN117357392A CN202311503560.4A CN202311503560A CN117357392A CN 117357392 A CN117357392 A CN 117357392A CN 202311503560 A CN202311503560 A CN 202311503560A CN 117357392 A CN117357392 A CN 117357392A
Authority
CN
China
Prior art keywords
resistor
pin
circuit
control chip
control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311503560.4A
Other languages
Chinese (zh)
Inventor
蔡国象
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Contain Packing Products Co ltd
Original Assignee
Guangzhou Contain Packing Products Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Contain Packing Products Co ltd filed Critical Guangzhou Contain Packing Products Co ltd
Priority to CN202311503560.4A priority Critical patent/CN117357392A/en
Publication of CN117357392A publication Critical patent/CN117357392A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H23/00Percussion or vibration massage, e.g. using supersonic vibration; Suction-vibration massage; Massage with moving diaphragms
    • A61H23/02Percussion or vibration massage, e.g. using supersonic vibration; Suction-vibration massage; Massage with moving diaphragms with electric or magnetic drive
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00Heating or cooling appliances for medical or therapeutic treatment of the human body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M37/00Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423Input/output
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K17/00Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/687Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
    • H03K17/6871Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors the output circuit comprising more than one controlled field-effect transistor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F2007/0001Body part
    • A61F2007/0002Head or parts thereof
    • A61F2007/0004Eyes or part of the face surrounding the eyes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/50Control means thereof
    • A61H2201/5058Sensors or detectors
    • A61H2201/5082Temperature sensors
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2205/00Devices for specific parts of the body
    • A61H2205/02Head
    • A61H2205/022Face
    • A61H2205/024Eyes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M37/00Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
    • A61M2037/0007Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin having means for enhancing the permeation of substances through the epidermis, e.g. using suction or depression, electric or magnetic fields, sound waves or chemical agents

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Dermatology (AREA)
  • Epidemiology (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Vascular Medicine (AREA)
  • Pain & Pain Management (AREA)
  • Medical Informatics (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Percussion Or Vibration Massage (AREA)

Abstract

The utility model provides an eye cream massager with cold and hot alternating function and a control circuit thereof, wherein the eye cream massager comprises a refrigerating/heating sheet, a massage head and an eye cream massager control circuit, and the eye cream massager has 4 working modes which are respectively as follows: vibration, refrigeration, heating and standby; the refrigerating/heating sheet is connected with an H-bridge circuit in the eye cream massage device control circuit and is controlled by the H-bridge circuit to work in a refrigerating or heating mode; the refrigerating/heating sheet is arranged in contact with the massage head, and the temperature of the refrigerating/heating sheet is transmitted to the massage head; a motor control circuit in the control circuit controls the vibration of the motor or stops the vibration, and the vibration is transmitted to the massage head. The utility model has both cold compress and hot compress functions, realizes the switching of heating and refrigerating of the eye cream massage instrument through the H-bridge circuit, has the hot compress and cold compress functions, has simple and practical circuit design, and can meet the demands of most consumers. The eye cream massage device is smaller and more exquisite than the prior art, and is convenient to carry.

Description

Eye cream massager with cold-hot alternating function and control circuit thereof
Technical Field
The utility model relates to the technical field of eye massage devices, in particular to an eye cream massage device with a cold-hot alternating function and a control circuit thereof.
Background
With the continuous development of technology, products in the cosmetic packaging field gradually tend to be beautified and modernized. For example, early eye cream products were most commonly bottled or cannulated, as shown in fig. 1 and 2. With the improvement of the living standard of people and the continuous pursuit of material culture life, eye cream with massage function is continuously pushed out of the market and is favored by consumers. The eye cream with massage function is characterized in that a massage head is arranged on the head of the product, and after the eye cream is smeared around eyes, the eye cream is circularly massaged around the eyes by the massage head, so that the absorption of the eye cream by skin can be accelerated. The utility model discloses a heating vibration eye cream massage bottle cap, which comprises a vibration module, a heating module and a control circuit board, wherein the heating vibration eye cream massage bottle cap can realize accurate heating massage on eye acupoints, and is beneficial to improving the effect of eye massage.
The prior eye cream massage device has single function, can only realize the combination of massage and hot compress or massage and cold compress functions, and has little massage, cold compress and hot compress functions, thus the prior art needs to be improved.
Disclosure of Invention
The utility model aims to provide an eye cream massage device with a cold-hot alternating function and a control circuit thereof, which can solve the problems that the eye cream massage device in the prior art has single function and does not meet the demands of consumers.
The utility model aims at realizing the following technical scheme:
in a first aspect, the utility model provides an eye cream massage device control circuit with a cold-hot alternating function, which comprises a charging circuit, a main control circuit, a temperature detection circuit, a motor control circuit, a DC-DC circuit and an H-bridge circuit; the input end of the charging circuit is connected with the charging interface, and the output end of the charging circuit is used for providing working voltages for the main control circuit, the temperature detection circuit, the motor control circuit and the DC-DC circuit respectively; the working voltage is reduced by the DC-DC circuit and then a stabilized voltage is output to supply power for the H-bridge circuit;
the main control circuit comprises a light touch switch SW1 and a second control chip U2, and the power supply voltage +BT is input from a 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 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 tact switch SW1; the enabling pin of the second control chip U2 is connected with the DC-DC circuit; the output first pin and the output second pin of the second control chip U2 are respectively connected with the H bridge circuit; the grounding pin of the second control chip U2 is grounded.
Preferably, the eye cream massage device control circuit with the cold-hot alternating function further comprises an LED circuit, and the LED circuit is powered by the working voltage; and three LED circuit control pins of the second control chip U2 are respectively connected with the LED circuits.
Further, a first capacitor C1 is connected between the power supply pin and the ground pin of the second control chip U2.
Further, the charging circuit includes a first control chip U1, a lithium battery BT1, a first resistor R17, a second resistor R18, a third resistor R2, a first capacitor C8, and a second capacitor C2; the power supply pin of the first control chip U1 is led out to serve as an input end of a charging circuit; one end of the first resistor R17 is connected with a power supply pin of the first control chip U1, the other end of the first resistor R17 is connected with the second resistor R18 in series and then grounded, and the other end of the first resistor R is connected with a charging state pin of the second control chip U2; the first capacitor C8 is connected between the power supply pin of the first control chip U1 and the ground; the third resistor R2 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 BT 1; the positive electrode of the lithium battery BT1 is used as the output end of the charging circuit to output working voltage; the second capacitor C2 is connected in parallel between the anode and the cathode of the lithium battery BT 1; the grounding pin of the first control chip U1 is grounded; the charging detection pin of the first control chip U1 is connected with the charging detection pin of the second control chip U2.
Further, the DC-DC circuit includes a third control chip U3, a fourth resistor R4, a fifth resistor R7, a third capacitor C6, a fourth capacitor C4, a fifth capacitor C5, and a first inductor L1; the input pin of the third control chip U3 inputs the working voltage; the fifth capacitor C5 is connected between the input pin of the third control chip U3 and the ground; the working voltage is regulated by the third control chip U3, then is output from a switch control pin of the third control chip U3, and is output to a regulated voltage to supply power to an H bridge circuit after passing through a first inductor L1; the enabling pin of the third control chip U3 is connected with the enabling pin of the second control chip U2; the grounding 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 fourth resistor R4, one end of the fifth resistor R7 and one end of the fourth capacitor C4; the other end of the fourth resistor R4 is grounded; one end of the third capacitor C6, the other end of the fifth resistor R7 and the other end of the fourth capacitor C4 are connected with one end of the first inductor L1 far away from the switch control pin of the third control chip U3; the other end of the third capacitor C6 is grounded.
Further, the H-bridge circuit includes a first MOS transistor Q1, a second MOS transistor Q2, a fourth MOS transistor Q4, a fifth MOS transistor Q5, a sixth resistor R9, a seventh resistor R11, an eighth resistor R14, a ninth resistor R8, a tenth resistor R12, an eleventh resistor R15, and a first lead terminal J1; the stabilized voltage is input into an H bridge circuit from the drain electrode of the first MOS tube Q1 and the drain electrode of the second MOS tube Q2; the sixth resistor R9 is connected between the drain electrode and the grid electrode of the second MOS tube Q2; one end of the seventh resistor R11 is connected with the grid electrode of the second MOS tube Q2; one end of the eighth resistor R14 is connected with the grid electrode of the fifth MOS tube Q5; the other end of the seventh resistor R11 and the other end of the eighth resistor R14 are connected with two output pins of the second control chip U2; the ninth resistor R8 is connected between the drain electrode and the grid electrode of the first MOS tube Q1; one end of the tenth resistor R12 is connected with the grid electrode of the first MOS tube Q1; one end of the eleventh resistor R15 is connected with the grid electrode of the fourth MOS tube Q4; the other end of the tenth resistor R12 and the other end of the eleventh resistor R15 are connected with an output pin of the second control chip U2; the first pin of the first lead terminal J1 is connected with the source electrode of the second MOS tube Q2 and the drain electrode of the fifth MOS tube Q5; the second pin of the first lead terminal J1 is connected with the source electrode of the first MOS tube Q1 and the drain electrode of the fourth MOS tube Q4; the source electrode of the fifth MOS tube Q5 and the source electrode of the fourth MOS tube Q4 are grounded.
Further, the motor control circuit comprises a third MOS tube Q3, a twelfth resistor R10, a thirteenth resistor R13, a sixth capacitor C7 and a second lead terminal J2; the working voltage is input into a motor control circuit from one end of a twelfth resistor R10 and the drain electrode of a third MOS tube Q3; the other end of the twelfth resistor R10 is connected with the grid electrode of the third MOS tube Q3 and one end of the thirteenth resistor R13; the other end of the thirteenth resistor R13 is connected with a motor control pin of the second control chip U2; the source electrode of the third MOS tube Q3 is connected with the first pin of the second lead terminal J2; the second pin of the second lead terminal J2 is grounded; the sixth capacitor C7 is connected between two pins of the second lead terminal J2.
Further, the temperature detection circuit comprises a fourteenth resistor R1, a seventh capacitor C3 and a fifteenth resistor R3; the fifteenth resistor R3 is a thermistor; the working voltage is input into a temperature detection circuit from one end of a fourteenth resistor R1, and the other end of the fourteenth resistor R1 is connected with one end of a fifteenth resistor R3 and a temperature detection pin of a second control chip U2; the other end of the fifteenth resistor R3 is grounded; the seventh capacitor C3 is connected in parallel to two ends of the fifteenth resistor R3.
Further, the LED circuit comprises a sixteenth resistor R16 and a light emitting diode group LED; the Light Emitting Diode (LED) group comprises a first LED, a second LED and a third LED; the operating voltage is input from one end of a sixteenth resistor R16; the other end of the sixteenth resistor R16 is respectively connected with the anode of the first light-emitting diode, the anode of the second light-emitting diode and the anode of the third light-emitting diode; the cathode of the first light emitting diode is connected with a first LED circuit control pin of the second control chip U2, the cathode of the second light emitting diode is connected with a second LED circuit control pin of the second control chip U2, and the cathode of the third light emitting diode is connected with a third LED circuit control pin of the second control chip U2.
In a second aspect, the utility model provides an eye cream massager with a cold-hot alternating function, which comprises a refrigerating/heating sheet and a massage head, and further comprises the control circuit of the eye cream massager, wherein the eye cream massager has 4 working modes, namely: vibration, refrigeration, heating and standby; the refrigerating/heating sheet is connected with an H-bridge circuit in the eye cream massager control circuit and is controlled by the H-bridge circuit to work in a refrigerating or heating mode; the refrigerating/heating sheet is arranged in contact with the massage head, and the temperature of the refrigerating/heating sheet is transmitted to the massage head; the motor control circuit in the control circuit controls the vibration of the motor or stops the vibration, and the vibration is transmitted to the massage head; the refrigerating/heating sheet is made of copper base plate material.
The eye cream massage device with the cold and hot alternating function and the control circuit thereof have the cold compress function and the hot compress function, realize the heating and the refrigerating switching of the eye cream massage device through the H-bridge circuit, have the hot compress function and the cold compress function, and can meet the demands of most consumers. The eye cream massage device is smaller and more exquisite than the prior art, and is convenient to carry.
Drawings
FIG. 1 is a schematic view of a prior art eye cream case;
FIG. 2 is a schematic view of a prior art eye cream tube;
FIG. 3 is a block diagram of a control circuit of the eye-cream massage apparatus with alternating cold and hot functions of the present utility model;
FIG. 4 is a schematic diagram of a charging circuit according to the present utility model;
FIG. 5 is a schematic diagram of a master control circuit of the present utility model;
FIG. 6 is a schematic diagram of a DC-DC circuit of the present utility model;
FIG. 7 is a schematic diagram of an H-bridge circuit of the present utility model;
FIG. 8 is a schematic diagram of a motor control circuit of the present utility model;
FIG. 9 is a schematic diagram of a temperature sensing circuit of the present utility model;
fig. 10 is a schematic diagram of an LED circuit of the present utility model.
Detailed Description
Embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
Other advantages and effects of the present disclosure will become readily apparent to those skilled in the art from the following disclosure, which describes embodiments of the present disclosure by way of specific examples. It will be apparent that the described embodiments are merely some, but not all embodiments of the present disclosure. The disclosure may be embodied or practiced in other different specific embodiments, and details within the subject specification may be modified or changed from various points of view and applications without departing from the spirit of the disclosure. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, based on the embodiments in this disclosure are intended to be within the scope of this disclosure.
Example 1
An eye cream massage control circuit with cold and hot alternating function, as shown in figure 3, comprises a charging circuit, a main control circuit, a temperature detection circuit, a motor control circuit, an LED circuit, a DC-DC circuit and an H bridge circuit. The input end of the charging circuit is connected with the charging interface, and the output end of the charging circuit is used for providing working voltage +BT for the main control circuit, the temperature detection circuit, the motor control circuit, the LED circuit and the DC-DC circuit respectively. The working voltage +BT is reduced by the DC-DC circuit and then outputs a stabilized voltage for supplying power to the H-bridge circuit. The output end of the H bridge circuit is connected with a refrigerating/heating sheet. The main control circuit is shown in fig. 5, and comprises a tact switch SW1 and a second control chip U2, wherein the second control chip U2 at least comprises a 1 st pin power supply pin, a 2 nd pin charge detection pin, a 3 rd pin charge state pin, a 5 th pin motor control pin MADA, a 6/7/8 th pin which is three LED circuit control pins LED2/LED3/LED1, a 9 th pin temperature detection pin TEST1, a 10 th pin switch control pin, an 11 th pin enable pin EN, a 12 th pin output pin OUT1, a 13 th pin output second pin OUT2 and a 14 th pin ground pin. The power supply voltage +BT output by the charging circuit is input from a power supply pin of the second control chip U2, and power is supplied to 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 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 with 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 tact switch SW1. The enable pin EN of the second control chip U2 is connected to the DC-DC circuit. The output first pin OUT1 and the output second pin OUT2 of the second control chip U2 are connected with the H-bridge circuit. The ground pin of the second control chip U2 is grounded.
The first capacitor C1 is connected between the 1 st pin and the 14 th pin of the second control chip U2, and the first capacitor C1 is a bypass circuit and is used for filtering high-frequency signals.
The LED circuit is a preferable technical scheme, the charging state and the working state of eye cream massage can be intuitively seen by adding the LED circuit, and the normal work of eye cream massage is not influenced by removing the LED circuit.
The working principle of fig. 3 is:
the charging interface is connected with the charger and then outputs +5V voltage to the input end of the charging circuit, and the charging circuit is fully charged and then provides working voltage +BT for other modules. The charging state pin of the second control chip U2 detects the charging state of the charging circuit, and when the charging state is in the charging state, the 7 th pin LED3 of the second control chip U2 outputs a low level to control the red lamp of the LED circuit to be on. When the battery is fully charged, the 6 th pin LED2 of the second control chip U2 outputs a low level to control the green light of the LED circuit to be on. In the charging state, the second control chip U2 controls the eye cream massage device to be not operated. After full charge, the eye cream massage device is in a working state. Pressing a first lower tact switch SW1, controlling a motor control circuit to work by a main control circuit through a motor control pin MADA, starting vibration of a motor, and transmitting the vibration to a massage head of the eye cream massage instrument to vibrate; meanwhile, the main control circuit controls the green lamp of the LED circuit to be on through the 8 th pin LED 1. According to the second lower tact switch SW1, the main control circuit controls the DC-DC circuit to provide 1.8V voltage stabilizing voltage for the H-bridge circuit through the enable pin EN, and the main control circuit outputs two pins through the 13 th pin to control the H-bridge circuit, so that the H-bridge circuit controls the refrigerating/heating sheet to heat to the constant temperature of 40 ℃ within 10 seconds; meanwhile, the main control circuit controls the motor control circuit to stop working through the motor control pin MADA, the eye cream massager stops vibrating, and the main control circuit controls the LED circuit to light the red lamp through the 7 th pin LED3. According to the third lower tact switch SW1, the main control circuit outputs a pin through a 12 th pin to control the H bridge circuit, so that the H bridge circuit controls the refrigerating/heating sheet to refrigerate within 30 seconds, and the lowest temperature is 17 ℃; meanwhile, the motor control circuit is still in a stop working state, and the main control circuit controls the blue lamp of the LED circuit to be on through the LED2 with the 6 th pin. According to the fourth touch switch SW1, the main control circuit controls the DC-DC circuit and the H-bridge circuit to stop working, and the eye cream massage device is in a standby state until the touch switch is pressed down again, and the working state of vibration, heating, refrigeration and standby is circularly achieved.
When the temperature exceeds a set temperature threshold, the main control circuit controls the refrigerating/heating sheet to stop heating through the H bridge circuit. After the refrigerating/heating sheet is in the refrigerating mode and works for 5 minutes in a countdown mode through the second control chip U2, the main control circuit controls the refrigerating/heating sheet to stop refrigerating through the H bridge circuit.
The working principle of the preferable technical scheme is that after the LED circuit is removed, only the display function of the indicator lamp is removed, and the working principle of other parts is unchanged.
Further, as shown in fig. 4, the charging circuit of the present utility model includes a first control chip U1, a lithium battery BT1, a first resistor R17, a second resistor R18, a third resistor R2, a first capacitor C8, and a second capacitor C2. The 4 th pin power supply pin VCC of the first control chip U1 is led out to serve as an input end of a charging circuit, and +5V voltage is input; one end of the first resistor R17 is connected with the 4 th pin power supply pin VCC of the first control chip U1, the other end of the first resistor R17 is connected with the second resistor R18 in series and then grounded, and the other end of the first resistor R17 is connected with the 3 rd pin charging state pin of the second control chip U2. The first capacitor C8 is connected between the VCC pin of the first control chip U1 and the ground, and plays a role of filtering. The third resistor R2 is connected between the 5 th pin PROG pin of the first control chip U1 and ground. The 3 rd pin battery charging pin BAT of the first control chip U1 charges the lithium battery BT1, and the positive electrode of the lithium battery BT1 is used as the output end of the charging circuit to output the working voltage +bt. The second capacitor C2 is connected in parallel between the anode and the cathode of the lithium battery, and plays roles in stabilizing the output voltage of the lithium battery and filtering out clutter. The 2 nd pin ground pin GND of the first control chip U1 is grounded. The 1 st pin charging detection pin SHDN of the first control chip U1 is connected to the charging detection pin of the second control chip U2.
Further, as shown in fig. 6, the DC-DC circuit of the present utility model includes a third control chip U3, a fourth resistor R4, a fifth resistor R7, a third capacitor C6, a fourth capacitor C4, a fifth capacitor C5, and a first inductor L1. The 4 th pin input pin VIN of the third control chip U3 inputs the working voltage +bt, and a fifth capacitor C5 is connected between the 4 th pin input pin VIN of the third control chip U3 and ground, so as to perform a filtering function. After the working voltage +BT is stabilized by the third control chip U3, a stabilized voltage of 1.8V is output from the 3 rd pin switch control pin SW of the third control chip U3 through the first inductor L1 to supply power to the H bridge circuit. The 1 st pin enable pin EN of the third control chip U3 is connected to the 11 th pin enable pin EN of the second control chip U2. The 2 nd pin ground pin GND of the third control chip U3 is grounded. The 5 th pin feedback pin FB of the third control chip U3 is connected with one end of the fourth resistor R4, one end of the fifth resistor R7 and one end of the fourth capacitor C4. The other end of the fourth resistor R4 is grounded. One end of the third capacitor C6, the other end of the fifth resistor R7 and the other end of the fourth capacitor C4 are connected to one end of the first inductor L1 far away from the switch control pin SW of the third control chip U3. The other end of the third capacitor C6 is grounded.
Further, as shown in fig. 7, the H-bridge circuit includes a first MOS transistor Q1, a second MOS transistor Q2, a fourth MOS transistor Q4, a fifth MOS transistor Q5, a sixth resistor R9, a seventh resistor R11, an eighth resistor R14, a ninth resistor R8, a tenth resistor R12, an eleventh resistor R15, and a first lead terminal J1. The stabilized voltage is input into the H bridge circuit from the drain electrode of the first MOS tube Q1 and the drain electrode of the second MOS tube Q2. The sixth resistor R9 is connected between the drain and the gate of the second MOS transistor Q2. One end of the seventh resistor R11 is connected with the grid electrode of the second MOS tube Q2, and one end of the eighth resistor R14 is connected with the grid electrode of the fifth MOS tube Q5; the other end of the seventh resistor R11 and the other end of the eighth resistor R14 are connected with the output two pin OUT2 of the second control chip U2. The ninth resistor R8 is connected between the drain and the gate of the first MOS transistor Q1. One end of the tenth resistor R12 is connected with the grid electrode of the first MOS tube Q1, and one end of the eleventh resistor R15 is connected with the grid electrode of the fourth MOS tube Q4; the other end of the tenth resistor R12 and the other end of the eleventh resistor R15 are connected with an output pin OUT1 of the second control chip U2. The first pin 1 of the first lead terminal J1 is connected to the source of the second MOS transistor Q2 and the drain of the fifth MOS transistor Q5. The second pin 2 of the first lead terminal J1 is connected to the source of the first MOS transistor Q1 and the drain of the fourth MOS transistor Q4. The source electrode of the fifth MOS transistor Q5 and the source electrode of the fourth MOS transistor Q4 are grounded. The two pins of the first lead terminal J1 are connected to the cooling/heating sheet by leads.
Further, as shown in fig. 8, the motor control circuit includes a third MOS transistor Q3, a twelfth resistor R10, a thirteenth resistor R13, a sixth capacitor C7, and a second lead terminal J2. The operating voltage +bt is input to the motor control circuit from one end of the twelfth resistor R10 and the drain of the third MOS transistor Q3. The other end of the twelfth resistor R10 is connected with the grid electrode of the third MOS tube Q3 and one end of the thirteenth resistor R13. The other end of the thirteenth resistor R13 is connected to the motor control pin MADA of the second control chip U2. The source electrode of the third MOS transistor Q3 is connected with the first pin 1 of the second lead terminal J2, and the second pin 2 of the second lead terminal J2 is grounded. The sixth capacitor C7 is connected between the two pins of the second lead terminal J2. The two pins of the second lead terminal J2 are connected to the motor through leads.
Further, as shown in fig. 9, the temperature detection circuit includes a fourteenth resistor R1, a seventh capacitor C3, and a fifteenth resistor R3. The fifteenth resistor R3 is a thermistor. The operating voltage +BT is input into the temperature detection circuit from one end of the fourteenth resistor R1, and the other end of the fourteenth resistor R1 is connected with one end of the fifteenth resistor R3 and the temperature detection pin TEST1 of the second control chip U2. The other end of the fifteenth resistor R3 is grounded. The seventh capacitor C3 is connected in parallel to both ends of the fifteenth resistor R3.
Further, as shown in fig. 10, the LED circuit includes a sixteenth resistor R16 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, and the first light emitting diode, the second light emitting diode and the third light emitting diode respectively emit green light, blue light and red light after being electrified. The operating voltage +bt is input from one end of the sixteenth resistor R16, and the other end of the sixteenth resistor R16 is connected to the anode of the first light emitting diode, the anode of the second light emitting diode, and the anode of the third light emitting diode, respectively. The cathode of the first light emitting diode is connected with a first LED circuit control pin LED1 of the second control chip U2, the cathode of the second light emitting diode is connected with a second LED circuit control pin LED2 of the second control chip U2, and the cathode of the third light emitting diode is connected with a third LED circuit control pin LED3 of the second control chip U2.
The principle of operation of the circuit schematic of fig. 4 to 10 is:
the charging interface is connected with the charger and then outputs +5V voltage to the input end of the charging circuit, after the +5V voltage is divided by the first resistor R17 and the second resistor R18, the 3 rd pin of the second control chip U2 detects the voltage of the serial connection node of the first resistor R17 and the second resistor R18, the voltage of the serial connection node is detected to indicate that the charging circuit is in a charging state, and at the moment, the 7 th pin LED3 of the second control chip outputs low level to control the third light emitting diode in the LED circuit to light and emit red light. The 5V voltage is input through the 4 th pin of the first control chip U1, and the 4.2V voltage is output from the 3 rd pin to charge the lithium battery BT 1. After the lithium battery BT1 is fully charged, the 1 st pin of the first control chip U1 outputs a high level to the 2 nd pin of the second control chip U2, and the 8 th pin LED1 outputs a low level to control the first light emitting diode in the LED circuit to light and emit green light. The second control chip U2 controls the eye cream massage device to be not operated in the charging state.
The motor control circuit is composed of a resistor R13, a resistor R10, a MOS tube Q3 and a capacitor C7 to control the switch of the vibration motor. When the tact switch SW1 is pressed down to switch to a vibration mode, the 5 th pin of the second control chip U2 outputs a high level to the grid electrode of the MOS tube Q3, the MOS tube Q3 is conducted, and the motor starts vibrating when power is supplied. The 8 th pin of the second control chip U2 controls the green light of the first light emitting diode to be on. When the tact switch SW1 is pressed down to switch to a cooling, heating or shutdown mode, the 5 th pin of the second control chip U2 outputs a low level to the grid electrode of the MOS tube Q3, the MOS tube Q3 is disconnected, and the motor stops vibrating.
The working voltage +BT output by the lithium battery BT1 is filtered by a fifth capacitor C5 and then is supplied to a third control chip U3, after the voltage is stabilized by the third control chip U3, the voltage output from a 3 rd pin of the third control chip U3 is divided by a fifth resistor R7 and a fourth resistor R4, and then 1.8V constant current and voltage are output to supply power to an H bridge circuit. The 1 st pin EN of the third control chip U3 is an enable terminal. The eye cream massager is started by pressing the tact switch SW1 for the first time, the 11 th pin of the second control chip U2 outputs a high level, the 1 st pin of the third control chip U3 enters a working state after detecting the high level, and the input +5V voltage is converted into a constant voltage and constant current 1.8V voltage stabilizing voltage to supply power for the H bridge circuit. The capacitances C4 and C6 act as filters. The output 1.8V stabilized voltage is fed back to the 5 th pin feedback pin of the third control chip U3 through the resistor R7, and the third control chip adjusts the output stabilized voltage to be 1.8V according to the fed back voltage. When the eye cream massager is turned off, the 11 th pin of the second control chip U2 outputs a low level, and the 1 st pin of the third control chip U3 enters a standby mode after detecting the low level, so that power consumption is saved.
MOS tubes Q1, Q2, Q4 and Q5 form an H bridge to supply power to the refrigerating/heating sheet, and the refrigerating/heating mode is controlled by switching the positive and negative directions of the power supply. When the tact switch SW1 is switched to the refrigeration mode, the second LED blue lamp is turned on, and the 13 th pin of the second control chip U2 outputs a high level, and the MOS tube Q5 is conducted after the high level is limited by the resistor R14. The 12 th pin of the second control chip U2 outputs a low level to enable the MOS tube Q1 to be conducted through the resistor R12, and the refrigerating/heating sheet is used as a refrigerating mode at the moment. The refrigeration mode is stopped after the second control chip U2 works for 5 minutes in a countdown mode. When the tact switch SW1 is switched to the heating mode, the third LED is red and is lighted, the 13 th pin of the second control chip U2 outputs a low level, the 12 th pin outputs a high level, the MOS tube Q2 and the MOS tube Q4 are conducted, voltages applied to two ends of the refrigerating/heating sheet are opposite, and at the moment, the refrigerating/heating sheet is in the heating mode.
The temperature detection circuit is composed of a capacitor C3, a resistor R1 and a thermistor R3. The 9 th pin of the second control chip U2 detects the voltage of the node of the series connection of the resistor R1 and the thermistor R3. When the temperature of the refrigerating/heating sheet is increased, the resistance value of the thermistor R3 is reduced, and when the voltage value detected by the 9 th pin of the second control chip U2 exceeds a set threshold value, the 12 th pin and the 13 th pin of the second control chip U2 control the switching time of the MOS tube Q2 and the MOS tube Q4, so that the temperature of the refrigerating/heating sheet is controlled to be 40 ℃ and constant temperature.
The second control chip U2 of the present utility model is a programmable single chip microcomputer, and other circuits are driven by the second control chip U2, and the switching sequence of the tact switch SW1 in this embodiment is as follows: the starting vibration, heating, cooling and shutdown can be adjusted to other sequences according to the needs of the customer, such as vibration, cooling, heating and shutdown, and the specific sequence arrangement should not be taken as a limitation of the utility model. When heating or refrigerating, the motor does not vibrate. The specific voltage values of the +5V working voltage and the 1.8V regulated voltage are used for better explaining the working principle of the circuit, and can be adjusted according to actual conditions, and the specific voltage values are not used for limiting the protection scope of the utility model.
The utility model also provides an eye cream massage instrument with a cold-hot alternating function, which comprises the control circuit, a refrigerating/heating sheet and a massage head, wherein the eye cream massage instrument has 4 working modes, namely: vibration, cooling, heating and standby. The refrigerating/heating sheet is connected with an H-bridge circuit in the control circuit, and is controlled by the H-bridge circuit to work in a refrigerating or heating mode, and is contacted with the massage head to transmit the temperature of the refrigerating/heating sheet to the massage head. A motor control circuit in the control circuit controls the vibration of the motor or stops the vibration, and the vibration is transmitted to the massage head.
The refrigerating/heating sheet is made of copper base plate material. Compared with a ceramic substrate, the copper substrate has more excellent heat conduction performance, and the heat conductivity of the copper substrate is more than 2 times of that of the ceramic substrate, so that the copper substrate can transfer heat more quickly, and is more applicable to high-conductivity circuit design.
The eye cream massager with the cold-hot alternating function and the control circuit thereof can integrate a plurality of working modes in one product, and simultaneously meet the demands of different customer groups of vibration massage, hot compress and cold compress. The circuit is simple and practical in design.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The above description is for the purpose of illustrating the embodiments of the present utility model and is not to be construed as limiting the utility model, but is intended to cover all modifications, equivalents, improvements and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. The eye cream massage control circuit with the cold and hot alternating function is characterized by comprising a charging circuit, a main control circuit, a temperature detection circuit, a motor control circuit, a DC-DC circuit and an H-bridge circuit; the input end of the charging circuit is connected with the charging interface, and the output end of the charging circuit is used for providing working voltages for the main control circuit, the temperature detection circuit, the motor control circuit and the DC-DC circuit respectively; the working voltage is reduced by the DC-DC circuit and then a stabilized voltage is output to supply power for the H-bridge circuit;
the main control circuit comprises a light touch switch (SW 1) and a second control chip (U2), and the power supply voltage is input from a 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 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 tact switch (SW 1); an enabling pin of the second control chip (U2) is connected with the DC-DC circuit; the output first pin and the output second pin of the second control chip (U2) are respectively connected with the H bridge circuit; the grounding pin of the second control chip (U2) is grounded.
2. The eye-cream massage apparatus control circuit with alternating cold and hot functions according to claim 1, further comprising an LED circuit, the LED circuit being powered by the operating voltage; and three LED circuit control pins of the second control chip (U2) are respectively connected with the LED circuits.
3. The eye-cream massage control circuit with cold-hot alternating function according to claim 1 or 2, characterized in that a first capacitor (C1) is connected between the power supply pin and the ground pin of the second control chip (U2).
4. The eye-cream massage control circuit with cold-hot alternating function according to claim 1 or 2, characterized in that the charging circuit comprises a first control chip (U1), a lithium battery (BT 1), a first resistor (R17), a second resistor (R18), a third resistor (R2), a first capacitor (C8) and a second capacitor (C2); the power supply pin of the first control chip (U1) is led out to serve as an input end of a charging circuit; one end of the first resistor (R17) is connected with a power supply pin of the first control chip (U1), the other end of the first resistor is connected with a second resistor (R18) in series and then grounded, and the other end of the first resistor is connected with a charging state pin of the second control chip (U2); the first capacitor (C8) is connected between a power supply pin of the first control chip (U1) and ground; the third resistor (R2) is connected between the PROG pin of the first control chip (U1) and ground; the battery charging pin of the first control chip (U1) charges a lithium battery (BT 1); the positive electrode of the lithium battery (BT 1) is used as the output end of the charging circuit to output working voltage; the second capacitor (C2) is connected in parallel between the anode and the cathode of the lithium battery (BT 1); the grounding pin of the first control chip (U1) is grounded; the charging detection pin of the first control chip (U1) is connected with the charging detection pin of the second control chip (U2).
5. The eye-cream massage control circuit with cold-hot alternating function according to claim 1 or 2, characterized in that the DC-DC circuit comprises a third control chip (U3), a fourth resistor (R4), a fifth resistor (R7), a third capacitor (C6), a fourth capacitor (C4), a fifth capacitor (C5) and a first inductor (L1); the input pin of the third control chip (U3) inputs the working voltage; the fifth capacitor (C5) is connected between the input pin of the third control chip (U3) and the ground; the working voltage is regulated by the third control chip (U3), then is output from a switch control pin of the third control chip (U3), and is output to a regulated voltage to supply power to an H-bridge circuit after passing through a first inductor (L1); the enabling pin of the third control chip (U3) is connected with the enabling pin of the second control chip (U2); the grounding 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 fourth resistor (R4), one end of the fifth resistor (R7) and one end of the fourth capacitor (C4); the other end of the fourth resistor (R4) is grounded; one end of the third capacitor (C6), the other end of the fifth resistor (R7) and the other end of the fourth capacitor (C4) are connected with one end of the first inductor (L1) far away from a switch control pin of the third control chip (U3); the other end of the third capacitor (C6) is grounded.
6. The eye-cream massage control circuit with cold-hot alternating function according to claim 1 or 2, wherein the H-bridge circuit comprises a first MOS transistor (Q1), a second MOS transistor (Q2), a fourth MOS transistor (Q4), a fifth MOS transistor (Q5), a sixth resistor (R9), a seventh resistor (R11), an eighth resistor (R14), a ninth resistor (R8), a tenth resistor (R12), an eleventh resistor (R15) and a first lead terminal (J1); the stabilized voltage is input into an H bridge circuit from the drain electrode of the first MOS tube (Q1) and the drain electrode of the second MOS tube (Q2); the sixth resistor (R9) is connected between the drain electrode and the grid electrode of the second MOS tube (Q2); one end of the seventh resistor (R11) is connected with the grid electrode of the second MOS tube (Q2); one end of the eighth resistor (R14) is connected with the grid electrode of the fifth MOS tube (Q5); the other end of the seventh resistor (R11) and the other end of the eighth resistor (R14) are connected with two output pins of a second control chip (U2); the ninth resistor (R8) is connected between the drain electrode and the grid electrode of the first MOS tube (Q1); one end of the tenth resistor (R12) is connected with the grid electrode of the first MOS tube (Q1); one end of the eleventh resistor (R15) is connected with the grid electrode of the fourth MOS tube (Q4); the other end of the tenth resistor (R12) and the other end of the eleventh resistor (R15) are connected with an output pin of a second control chip (U2); the first pin of the first lead terminal (J1) is connected with the source electrode of the second MOS tube (Q2) and the drain electrode of the fifth MOS tube (Q5); the second pin of the first lead terminal (J1) is connected with the source electrode of the first MOS tube (Q1) and the drain electrode of the fourth MOS tube (Q4); the source electrode of the fifth MOS tube (Q5) and the source electrode of the fourth MOS tube (Q4) are grounded.
7. The eye-cream massage control circuit with cold-hot alternating function according to claim 1 or 2, characterized in that the motor control circuit comprises a third MOS transistor (Q3), a twelfth resistor (R10), a thirteenth resistor (R13), a sixth capacitor (C7) and a second lead terminal (J2); the working voltage is input into a motor control circuit from one end of a twelfth resistor (R10) and the drain electrode of a third MOS tube (Q3); the other end of the twelfth resistor (R10) is connected with the grid electrode of the third MOS tube (Q3) and one end of the thirteenth resistor (R13); the other end of the thirteenth resistor (R13) is connected with a motor control pin of the second control chip (U2); the source electrode of the third MOS tube (Q3) is connected with the first pin of the second lead terminal (J2); a second pin of the second lead terminal (J2) is grounded; the sixth capacitor (C7) is connected between two pins of the second lead terminal (J2).
8. The eye-cream massage control circuit with cold-hot alternating function according to claim 1 or 2, characterized in that the temperature detection circuit comprises a fourteenth resistor (R1), a seventh capacitor (C3) and a fifteenth resistor (R3); the fifteenth resistor (R3) is a thermistor; the working voltage is input into a temperature detection circuit from one end of a fourteenth resistor (R1), and the other end of the fourteenth resistor (R1) is connected with one end of a fifteenth resistor (R3) and a temperature detection pin of a second control chip (U2); the other end of the fifteenth resistor (R3) is grounded; the seventh capacitor (C3) is connected in parallel with two ends of the fifteenth resistor (R3).
9. The eye-cream massage apparatus control circuit with the cold-hot alternating function according to claim 2, wherein the LED circuit includes a sixteenth resistor (R16) and a light emitting diode group (LED); the light emitting diode group (LED) includes a first light emitting diode, a second light emitting diode, and a third light emitting diode; the operating voltage is input from one end of a sixteenth resistor (R16); the other end of the sixteenth resistor (R16) is respectively connected with the anode of the first light-emitting diode, the anode of the second light-emitting diode and the anode of the third light-emitting diode; the cathode of the first light emitting diode is connected with a first LED circuit control pin of a second control chip (U2), the cathode of the second light emitting diode is connected with a second LED circuit control pin of the second control chip (U2), and the cathode of the third light emitting diode is connected with a third LED circuit control pin of the second control chip (U2).
10. An eye cream massage device with cold and hot alternating function, comprising a refrigerating/heating sheet and a massage head, characterized in that the eye cream massage device further comprises an eye cream massage device control circuit as claimed in any one of claims 1 to 9, wherein the eye cream massage device has 4 working modes, namely: vibration, refrigeration, heating and standby; the refrigerating/heating sheet is connected with an H-bridge circuit in the eye cream massager control circuit and is controlled by the H-bridge circuit to work in a refrigerating or heating mode; the refrigerating/heating sheet is arranged in contact with the massage head, and the temperature of the refrigerating/heating sheet is transmitted to the massage head; the motor control circuit in the control circuit controls the vibration of the motor or stops the vibration, and the vibration is transmitted to the massage head; the refrigerating/heating sheet is made of copper base plate material.
CN202311503560.4A 2023-11-13 2023-11-13 Eye cream massager with cold-hot alternating function and control circuit thereof Pending CN117357392A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311503560.4A CN117357392A (en) 2023-11-13 2023-11-13 Eye cream massager with cold-hot alternating function and control circuit thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311503560.4A CN117357392A (en) 2023-11-13 2023-11-13 Eye cream massager with cold-hot alternating function and control circuit thereof

Publications (1)

Publication Number Publication Date
CN117357392A true CN117357392A (en) 2024-01-09

Family

ID=89404082

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311503560.4A Pending CN117357392A (en) 2023-11-13 2023-11-13 Eye cream massager with cold-hot alternating function and control circuit thereof

Country Status (1)

Country Link
CN (1) CN117357392A (en)

Similar Documents

Publication Publication Date Title
CN103813585B (en) A kind of equipment for controlling luminescent device
CN104813742B (en) Supply voltage management
CN102695319B (en) LED stepless light regulating circuit
CN103747578B (en) Led backlight drive circuit and liquid crystal display
EP2579422A3 (en) Circuit and method fo operation for an electrical power supply
CN107172752B (en) A kind of electronic light modulator that compatible voltage range is wide
CN103471027A (en) Adjustable-color-temperature LED (Light Emitting Diode) light source module
CN111328157B (en) Massager adopting temperature control circuit
CN117357392A (en) Eye cream massager with cold-hot alternating function and control circuit thereof
CN219176615U (en) Control circuit of neck hanging type fan and neck hanging type fan
CN205546053U (en) LED bluetooth intelligent control ware
CN208890452U (en) A kind of charging control circuit, charger and electric tool
CN210120685U (en) Wireless dimming and color mixing driving circuit compatible with WIFI and Bluetooth functions
CN203467037U (en) LED light source module with adjustable color temperature
CN207219090U (en) A kind of wide electronic light modulator of compatible voltage range
CN206294092U (en) A kind of adjustable boosted switch power supply
CN212997972U (en) LED lamp appearance that moults
CN205584542U (en) High pressure, high frequency, pump formula drive power supply's ACLED light source
CN207782044U (en) A kind of electronic intelligence insert row
CN208864774U (en) A kind of hand-held beauty instrument
CN209462248U (en) Power supply device and electrical equipment
CN111111016A (en) LED lamp appearance that moults
CN112206050A (en) LED lamp-based hair removal light source module and LED hair removal machine
CN217409032U (en) Electric toothbrush control circuit and electric toothbrush
CN217902284U (en) Physiotherapy equipment

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination