CN207119000U - A kind of face massor and its drive circuit - Google Patents
A kind of face massor and its drive circuit Download PDFInfo
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- CN207119000U CN207119000U CN201621402767.8U CN201621402767U CN207119000U CN 207119000 U CN207119000 U CN 207119000U CN 201621402767 U CN201621402767 U CN 201621402767U CN 207119000 U CN207119000 U CN 207119000U
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- contact point
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Abstract
The utility model provides a kind of face massor and its drive circuit, suitable for field of circuit technology.The drive circuit of face massor provided by the utility model, including：First contact point unit, the second contact point unit, switch element and load capacity amplifying unit；When the first contact point unit the second end and the second contact point unit the second end simultaneously with contact human skin when, human body skin forms conductive path between the second end of the first contact point unit and the second end of the second contact point unit, and then trigger switch unit turns on so that the operating voltage drive motor that load capacity amplifying unit provides according to power supply works；When the second end of the first contact point unit or the second end of the second contact point unit separate with human body skin, open circuit is formed between the second end of the first contact point unit and the second end of the second contact point unit, and then trigger switch unit disconnects so that motor is stopped；The switch automaticity of face massor is improved, enhances user experience.
Description
Technical field
It the utility model is related to field of circuit technology, more particularly to a kind of face massor and its drive circuit.
Background technology
As requirement of the people to quality of life improves constantly, medical and beauty treatment product or health product on the market also by
To extensive concern, for example, face massor etc..
Although existing face massor all has quite advanced massage functions, for example, optics massage or vibration are pressed
Rub.But existing face massor is when in use, it is necessary to which the manually operated power switch of user could start facial massage
Device works, when stopping massaging, it is also necessary to which manually operated power switch could close face massor.
In summary, there is the problem of switch automaticity is low in existing face massor.
Utility model content
The purpose of this utility model is to provide a kind of face massor and its drive circuit, pressed with solving existing face
The problem of switch automaticity is low be present in the device that rubs.
The purpose of this utility model is to provide a kind of drive circuit of face massor, is arranged on the face massor
It is interior, and be connected between power supply and motor, for driving the motor operations, the drive circuit includes：First contact point unit,
Second contact point unit, switch element and load capacity amplifying unit；
The first end of first contact point unit is connected with the output end of the power supply, and the second of first contact point unit
Hold and be used for and contact human skin, the first end of the switch element and the first end of the load capacity amplifying unit meet institute altogether
The first end of the first contact point unit is stated, the first end of second contact point unit is connected with the controlled end of the switch element, institute
The second end for stating the second contact point unit is used for and contact human skin, the second end and the load capacity of the switch element are put
The controlled end of big unit is connected, the 3rd end ground connection of the switch element, the first end of the load capacity amplifying unit and institute
The first input end for stating motor is connected, the second end of the load capacity amplifying unit and the second input phase of the motor
Even；
When the second end of first contact point unit and the second end of second contact point unit while and human body skin
During contact, human body skin shape between the second end of first contact point unit and the second end of second contact point unit
Into conductive path, and then trigger the switching means conductive so that the load capacity amplifying unit provides according to the power supply
Operating voltage drive the motor operations；
When the second end of first contact point unit or the second end of second contact point unit separate with human body skin
When, open circuit is formed between the second end of the second end of first contact point unit and second contact point unit, and then trigger institute
State switch element disconnection so that the motor is stopped.
Further, the drive circuit also includes：First end is connected with the first input end of the motor, the second end with
Second input of the motor is connected, the motor protection location protected to the motor.
Further, the drive circuit also includes：First end is connected with the first end of first contact point unit, and second
Hold the filter unit of ground connection.
Further, the switch element includes：First electric capacity, the second electric capacity, first resistor, second resistance, the 3rd electricity
Resistance, the 4th resistance and first switch pipe；
The first end of the first resistor be the switch element first end, the second end of the first resistor with it is described
The first end of first electric capacity connects the first end of the second resistance, the second end ground connection of first electric capacity, second electricity altogether
Resistance the second end be the switch element the second end, the hot end of the first switch pipe and the first of the second resistance
End is connected, and the cold end of the first switch pipe is the 3rd end of the switch element, the controlled end of the first switch pipe
It is connected with the first end of the 3rd resistor, the cold end of the first switch pipe and the second end phase of the 3rd resistor
Even, the 4th resistance first end is connected with the first end of the 3rd resistor, the second end of the 4th resistance and described the
Second end of three resistance is connected, and the first end of second electric capacity is the controlled end of the switch element, second electric capacity
First end is connected with the first end of the 4th resistance, the second end of second electric capacity and the second end phase of the 4th resistance
Even.
Further, the load capacity amplifying unit includes：Second switch pipe, the 3rd switching tube, the 5th resistance and
6th resistance；
The cold end of the second switch pipe be the load capacity amplifying unit first end, the second switch pipe
Controlled end be the load capacity amplifying unit controlled end, the hot end of the second switch pipe and the 5th resistance
First end be connected, the second end of the 5th resistance and the first end of the 6th resistance connect altogether the 3rd switching tube by
End is controlled, the second end of the 6th resistance and the cold end of the 3rd switching tube are grounded altogether, the height of the 3rd switching tube
Potential end is the second end of the load capacity amplifying unit.
Further, the motor protection location includes：3rd electric capacity and the first diode；
The first end of 3rd electric capacity is connected with the first end of first diode, forms the motor protection location
First end, the second end of the 3rd electric capacity is connected with the second end of first diode, and it is single to form the motor protection
Second end of member.
Further, the first end of first diode be first diode negative electrode, first diode
The second end be first diode anode.
Further, the filter unit includes：4th electric capacity, the 5th electric capacity, the 7th resistance and the 8th resistance；
First end, the first end of the 5th electric capacity and the first end of the 7th resistance of 4th electric capacity connect altogether
The first end of 8th resistance forms first node, and the first node is the first end of the filter unit, and the described 4th
Second end at the second end of electric capacity, the second end of the 5th electric capacity and the 7th resistance connects the of the 8th resistance altogether
Two ends form section point, and the section point is the second end of the filter unit.
Another object of the present utility model is to provide a kind of face massor, including power supply and motor, and the face is pressed
The device that rubs also includes drive circuit, and the drive circuit is the drive circuit of face massor as described above.
The utility model provides a kind of face massor and its drive circuit, wherein, the drive circuit of face massor connects
It is connected between the motor in power supply and face massor, is worked for drive motor, drive circuit includes：First contact point unit,
Second contact point unit, switch element and load capacity amplifying unit；When the second end and the second contact of the first contact point unit
Second end of unit simultaneously with contact human skin when, human body skin is at the second end of the first contact point unit and the second contact point unit
The second end between form conductive path, and then trigger switch unit turns on so that load capacity amplifying unit carries according to power supply
The operating voltage drive motor work of confession；The second end or the second end of the second contact point unit and human body when the first contact point unit
When skin separates, open circuit is formed between the second end of the first contact point unit and the second end of the second contact point unit, and then trigger and open
Close unit to disconnect so that motor is stopped；The switch automaticity of face massor is improved, enhances Consumer's Experience
Degree.
Brief description of the drawings
, below will be to embodiment or prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The required accompanying drawing used is briefly described in description, it should be apparent that, drawings in the following description are only that this practicality is new
Some embodiments of type, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of the drive circuit for face massor that the utility model embodiment provides；
Fig. 2 is a kind of physical circuit figure of the drive circuit for face massor that the utility model embodiment provides；
Fig. 3 is a kind of structural representation for face massor that the utility model embodiment provides.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
The purpose of this utility model is to provide a kind of face massor and its drive circuit, pressed with solving existing face
The problem of switch automaticity is low be present in the device that rubs.
It should be noted that in all embodiments of the present utility model, the drive circuit of face massor is arranged on face
In massager, worked for drive motor.
In order to illustrate technical scheme that the utility model embodiment is provided, said below by specific embodiment
It is bright.
Fig. 1 shows a kind of schematic structure of the drive circuit for face massor that the utility model embodiment provides,
As shown in figure 1, a kind of drive circuit 100 of face massor, and be connected between power supply 110 and motor 120, drive circuit
100 include：First contact point unit 10, the second contact point unit 20, switch element 30 and load capacity amplifying unit 40.
The first end of first contact point unit 10 is connected with the output end of power supply 110, and the second end of the first contact point unit 10 is used
Contacted in human body skin 130, the first end of switch element 30 connects first with the first end of load capacity amplifying unit 40 and touched altogether
The first end of dot element 10, the first end of the second contact point unit 20 are connected with the controlled end of switch element 30, the second contact point unit
20 the second end is used to contact with human body skin 130, and the second end of switch element 30 is controlled with load capacity amplifying unit 40
End is connected, the 3rd end ground connection of switch element 30, the first end of load capacity amplifying unit 40 and the first input end of motor 120
It is connected, the second end of load capacity amplifying unit 40 is connected with the second input of motor 120.
When simultaneously the second end of the first contact point unit 10 and the second end of the second contact point unit 20 connect with human body skin 130
When touching, human body skin 130 forms conduction between the second end of the first contact point unit 10 and the second end of the second contact point unit 20
Path, and then trigger switch unit 30 turns on so that the operating voltage that load capacity amplifying unit 40 provides according to power supply 110 is driven
Dynamic motor 120 works.
When the second end of the first contact point unit 10 or the second end of the second contact point unit 20 separate with human body skin 130
When, open circuit, and then trigger switch list are formed between the second end of the second end of the first contact point unit 10 and the second contact point unit 20
Member 30 disconnects so that motor 120 is stopped.
It should be noted that human body skin 130 is the of the second end of the first contact point unit 10 and the second contact point unit 20
When conductive path is formed between two ends, because the first end of the second contact point unit 20 is connected with the controlled end of switch element 30, because
This trigger switch unit 30 turns on, and realizes the loop between unit 110, switch element 30 and ground, and load capacity amplification is single
Between first 40 the second end equivalent to the first end and switch element 30 for being parallel to switch element 30, and then improve whole driving electricity
The load capacity on road.
In all embodiments of the present utility model, human body skin 130 is specifically as follows the skin of face of human body, power supply 110
Can be dc source, corresponding, motor 120 can be the motor of dc source driving.
It should be noted that the safe voltage of human body is 36V, safe current 10mA, due in the first contact point unit 10
The second end and the second contact point unit 20 the second end simultaneously when being contacted with human body skin 130, human body skin 130 is used as first
Conductive path between second end of contact point unit 10 and the second end of the second contact point unit 20, therefore, the power supply electricity of power supply 110
Pressure is much smaller than 36V, is specifically as follows 3V to 6V.
As an embodiment of the present utility model, the drive circuit 100 of face massor can also include：First end and horse
First input end up to 120 is connected, and the second end is connected with the second input of motor 120, the motor protected to motor 120
Protection location 50.
It should be noted that when the second end of the first contact point unit 10 or the second end and the human body of the second contact point unit 20
When skin 130 separates, human body skin 130 can not be at the second end of the first contact point unit 10 and the second end of the second contact point unit 20
Between form conductive path, and then control motor 120 to power off, motor protection location 50 is then used to discharge the residual in motor 120
Electric current.
As an embodiment of the present utility model, the drive circuit 100 of face massor can also include：First end and the
The first end of one contact point unit 10 is connected, the filter unit 60 of the second end ground connection.
It is understood that the first end of filter unit 60 is connected with the first end of the first contact point unit 10, i.e., simultaneously with
The output end of power supply 110 is connected, and filter unit 60 is used to be filtered the output voltage of power supply 110.
In all embodiments of the present utility model, the first contact point unit 10 and the second contact point unit 20 can be metal
Electrode or sheet metal.
Fig. 2 shows a kind of physical circuit knot of the drive circuit for face massor that the utility model embodiment provides
Structure, as shown in Fig. 2 switch element 30 includes：First electric capacity C1, the second electric capacity C2, first resistor R1, second resistance R2, the 3rd
Resistance R3, the 4th resistance R4 and first switch pipe Q1.
First resistor R1 first end is the first end of switch element 30, first resistor R1 the second end and the first electric capacity C1
First end connect second resistance R2 first end altogether, the first electric capacity C1 the second end ground connection, second resistance R2 the second end is opens
The second end of unit 30 is closed, first switch pipe Q1 hot end is connected with second resistance R2 first end, first switch pipe Q1
Cold end be switch element 30 the 3rd end, first switch pipe Q1 controlled end is connected with 3rd resistor R3 first end,
First switch pipe Q1 cold end is connected with 3rd resistor R3 the second end, and the 4th resistance R4 first ends are with 3rd resistor R3's
First end is connected, and the 4th resistance R4 the second end is connected with 3rd resistor R3 the second end, and the second electric capacity C2 first end is to open
The controlled end of unit 30 is closed, the second electric capacity C2 first end is connected with the 4th resistance R4 first end, and the second of the second electric capacity C2
End is connected with the 4th resistance R4 the second end.
It is understood that first switch pipe Q1 can be metal-oxide-semiconductor, IGBT pipes or the IGBT pipes with body diode.
As shown in Fig. 2 as the preferred embodiment of the utility model one, first switch pipe Q1 is NPN type triode Q1,
NPN type triode Q1 base stage be first switch pipe Q1 controlled end, NPN type triode Q1 current collection extremely first switch pipe Q1
Hot end, NPN type triode Q1 transmitting extremely first switch pipe Q1 cold end.
As shown in Fig. 2 load capacity amplifying unit 40 includes：Second switch pipe Q2, the 3rd switching tube Q3, the 5th resistance R5
And the 6th resistance R6.
Second switch pipe Q2 cold end is the first end of load capacity amplifying unit 40, and second switch pipe Q2's is controlled
Hold as the controlled end of load capacity amplifying unit 40, the first end phase of second switch pipe Q2 hot end and the 5th resistance R5
Even, the 5th resistance R5 the second end meets the 3rd switching tube Q3 controlled end, the 6th resistance R6 with the 6th resistance R6 first end altogether
The second end and the 3rd switching tube Q3 cold end be grounded altogether, the 3rd switching tube Q3 hot end is single for load capacity amplification
Second end of member 40.
It is understood that second switch pipe Q2 and the 3rd switching tube Q3 can be for metal-oxide-semiconductor, IGBT pipes or with the pole of body two
The IGBT pipes of pipe.
As shown in Fig. 2 as the preferred embodiment of the utility model one, second switch pipe Q2 is PMOS Q2, PMOS
Q2 grid is second switch pipe Q2 controlled end, and PMOS Q2's drains as second switch pipe Q2 hot end, PMOS
Q2 source electrode is second switch pipe Q2 cold end.
As shown in Fig. 2 as the preferred embodiment of the utility model one, the 3rd switching tube Q3 is NPN type triode Q3,
NPN type triode Q3 base stage be the 3rd switching tube Q3 controlled end, NPN type triode Q3 current collection extremely the 3rd switching tube Q3
Hot end, NPN type triode Q3 transmitting extremely the 3rd switching tube Q3 cold end.
As shown in Fig. 2 motor protection location 50 includes：3rd electric capacity C3 and the first diode D1.
3rd electric capacity C3 first end is connected with the first diode D1 first end, and the first of composition motor protection location 50
End, the 3rd electric capacity C3 the second end are connected with the first diode D1 the second end, the second end of composition motor protection location 50.
It should be noted that the first diode D1 first end is the first diode D1 negative electrode in the present embodiment, the
One diode D1 the second end is the first diode D1 anode.
As shown in Fig. 2 filter unit 60 includes：4th electric capacity C4, the 5th electric capacity C5, the 7th resistance R7 and the 8th resistance
R8。
The first end of the first end of 4th electric capacity, the first end of the 5th electric capacity and the 7th resistance connects the of the 8th resistance altogether
One end formed first node, first node be filter unit first end, the second end, the second end of the 5th electric capacity of the 4th electric capacity
And the 7th resistance the second end connect altogether the 8th resistance the second end formed section point, section point be filter unit second
End.
It is former below in conjunction with work of the Fig. 1 and Fig. 2 to a kind of drive circuit 100 of face massor provided by the utility model
Reason is described in detail：
When simultaneously the second end of the first contact point unit 10 and the second end of the second contact point unit 20 connect with human body skin 130
When touching, human body skin 130 forms conduction between the second end of the first contact point unit 10 and the second end of the second contact point unit 20
Path so that first switch pipe Q1 is turned on, and the voltage that filter unit 60 is provided power supply 110 is filtered.First switch pipe Q1
After conducting, second switch pipe Q2 cold end and the electricity of controlled end are controlled respectively by first resistor R1 and second resistance R2
Pressure so that second switch pipe Q2 is turned on therewith.After second switch pipe Q2 conductings, the 3rd switching tube Q3 is controlled by the 5th resistance R5
Controlled end so that the 3rd switching tube Q3 is turned on, and then drive motor 120 works.In the course of work of motor 120, the 3rd electricity
Hold the operating voltage that C3 is used to stablize motor 120, in 120 power down of motor, the first diode D1 is used to carry out residual current
Release.
When the second end of the first contact point unit 10 or the second end and the human body skin 130 of the second contact point unit 20 separate
When, open circuit between the second end of the second end of the first contact point unit 10 and the second contact point unit 20 so that at first switch pipe Q1
In cut-off state, and then second switch pipe Q2 cut-offs and the 3rd switching tube Q3 is caused to be also switched off.
The utility model provides a kind of face massor and its drive circuit, wherein, the drive circuit of face massor connects
It is connected between the motor in power supply and face massor, is worked for drive motor, drive circuit includes：First contact point unit,
Second contact point unit, switch element and load capacity amplifying unit；When the second end and the second contact of the first contact point unit
Second end of unit simultaneously with contact human skin when, human body skin is at the second end of the first contact point unit and the second contact point unit
The second end between form conductive path, and then trigger switch unit turns on so that load capacity amplifying unit carries according to power supply
The operating voltage drive motor work of confession；The second end or the second end of the second contact point unit and human body when the first contact point unit
When skin separates, open circuit is formed between the second end of the first contact point unit and the second end of the second contact point unit, and then trigger and open
Close unit to disconnect so that motor is stopped；The switch automaticity of face massor is improved, enhances Consumer's Experience
Degree.
The utility model embodiment also provides a kind of face massor 200, and its structure is as shown in figure 3, face massor 200
Including power supply 110 and motor 120, face massor 200 also includes drive circuit 100, and drive circuit 100 is that above-mentioned face is pressed
Rub the drive circuit 100 of device.
Face massor 200 in the present embodiment implementation related to the utility model or operation principle are upper
State in embodiment and describe in detail, therefore here is omitted.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art
For personnel, make some equivalent substitutes or obvious modification without departing from the concept of the premise utility, and performance or
Purposes is identical, should all be considered as belonging to the scope of patent protection that the utility model is determined by the claims submitted.
Claims (9)
1. a kind of drive circuit of face massor, is arranged in the face massor, and is connected between power supply and motor,
For driving the motor operations, it is characterised in that the drive circuit includes：First contact point unit, the second contact point unit, open
Close unit and load capacity amplifying unit；
The first end of first contact point unit is connected with the output end of the power supply, and the second end of first contact point unit is used
Described the is connect altogether in the first end with contact human skin, the first end of the switch element and the load capacity amplifying unit
The first end of one contact point unit, the first end of second contact point unit are connected with the controlled end of the switch element, and described
Second end of two contact point units is used for and contact human skin, and the second end of the switch element and load capacity amplification are single
The controlled end of member is connected, the 3rd end ground connection of the switch element, first end and the horse of the load capacity amplifying unit
The first input end reached is connected, and the second end of the load capacity amplifying unit is connected with the second input of the motor；
As the second end of first contact point unit and the second end of second contact point unit while and contact human skin
When, the human body skin is formed between the second end of first contact point unit and the second end of second contact point unit and led
Electric pathway, and then trigger the switching means conductive so that the work that the load capacity amplifying unit provides according to the power supply
Make voltage and drive the motor operations；
When the second end of first contact point unit or the second end of second contact point unit separate with human body skin, institute
State and open circuit is formed between the second end of the first contact point unit and the second end of second contact point unit, and then trigger the switch
Unit disconnects so that the motor is stopped.
2. the drive circuit of face massor as claimed in claim 1, it is characterised in that the drive circuit also includes：The
One end is connected with the first input end of the motor, and the second end is connected with the second input of the motor, and the motor is entered
The motor protection location of row protection.
3. the drive circuit of face massor as claimed in claim 1, it is characterised in that the drive circuit also includes：The
One end is connected with the first end of first contact point unit, the filter unit of the second end ground connection.
4. the drive circuit of face massor as claimed in claim 1, it is characterised in that the switch element includes：First
Electric capacity, the second electric capacity, first resistor, second resistance, 3rd resistor, the 4th resistance and first switch pipe；
The first end of the first resistor be the switch element first end, the second end of the first resistor and described first
The first end of electric capacity connects the first end of the second resistance altogether, and the second end of first electric capacity is grounded, the second resistance
Second end is the second end of the switch element, the hot end of the first switch pipe and the first end phase of the second resistance
Even, the cold end of the first switch pipe is the 3rd end of the switch element, the controlled end of the first switch pipe and institute
The first end for stating 3rd resistor is connected, and the cold end of the first switch pipe is connected with the second end of the 3rd resistor, institute
State the 4th resistance first end with the first end of the 3rd resistor to be connected, the second end and the 3rd resistor of the 4th resistance
The second end be connected, the first end of second electric capacity is the controlled end of the switch element, the first end of second electric capacity
It is connected with the first end of the 4th resistance, the second end of second electric capacity is connected with the second end of the 4th resistance.
5. the drive circuit of face massor as claimed in claim 1, it is characterised in that the load capacity amplifying unit bag
Include：Second switch pipe, the 3rd switching tube, the 5th resistance and the 6th resistance；
The cold end of the second switch pipe be the load capacity amplifying unit first end, the second switch pipe by
Control the controlled end that end is the load capacity amplifying unit, the of the hot end of the second switch pipe and the 5th resistance
One end is connected, and the second end of the 5th resistance and the first end of the 6th resistance connect the controlled of the 3rd switching tube altogether
End, the second end of the 6th resistance and the cold end of the 3rd switching tube are grounded altogether, the height electricity of the 3rd switching tube
Position end is the second end of the load capacity amplifying unit.
6. the drive circuit of face massor as claimed in claim 2, it is characterised in that the motor protection location includes：
3rd electric capacity and the first diode；
The first end of 3rd electric capacity is connected with the first end of first diode, forms the of the motor protection location
One end, the second end of the 3rd electric capacity are connected with the second end of first diode, form the motor protection location
Second end.
7. the drive circuit of face massor as claimed in claim 6, it is characterised in that the first end of first diode
For the negative electrode of first diode, the second end of first diode is the anode of first diode.
8. the drive circuit of face massor as claimed in claim 3, it is characterised in that the filter unit includes：4th
Electric capacity, the 5th electric capacity, the 7th resistance and the 8th resistance；
First end, the first end of the 5th electric capacity and the first end of the 7th resistance of 4th electric capacity connect described altogether
The first end of 8th resistance forms first node, and the first node is the first end of the filter unit, the 4th electric capacity
The second end, the second end of the 5th electric capacity and the second end of the 7th resistance connect the second end of the 8th resistance altogether
Section point is formed, the section point is the second end of the filter unit.
9. a kind of face massor, including power supply and motor, it is characterised in that the face massor also includes drive circuit,
The drive circuit is the drive circuit of the face massor described in claim 1 to 8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621402767.8U CN207119000U (en) | 2016-12-20 | 2016-12-20 | A kind of face massor and its drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621402767.8U CN207119000U (en) | 2016-12-20 | 2016-12-20 | A kind of face massor and its drive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207119000U true CN207119000U (en) | 2018-03-20 |
Family
ID=61614075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621402767.8U Expired - Fee Related CN207119000U (en) | 2016-12-20 | 2016-12-20 | A kind of face massor and its drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207119000U (en) |
-
2016
- 2016-12-20 CN CN201621402767.8U patent/CN207119000U/en not_active Expired - Fee Related
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