CN207356070U - A kind of skin detection instrument and skin detection system - Google Patents
A kind of skin detection instrument and skin detection system Download PDFInfo
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- CN207356070U CN207356070U CN201720181258.5U CN201720181258U CN207356070U CN 207356070 U CN207356070 U CN 207356070U CN 201720181258 U CN201720181258 U CN 201720181258U CN 207356070 U CN207356070 U CN 207356070U
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Abstract
The utility model embodiment discloses a kind of skin detection instrument, which includes communication port, with electric loading and communication interface power-supply circuit.Wherein, communication port is used for the communication interface for being connected to external smart terminal；Communication interface power-supply circuit is connected with communication port and with electric loading respectively, for receiving the sine wave AC signal for the predeterminated frequency that external smart terminal produces by communication port, and the sine wave AC signal is converted to the direct current supply voltage needed for electric loading.The utility model embodiment also discloses a kind of skin detection system, including above-mentioned intelligent terminal and skin detection instrument.By the above-mentioned means, the convenience that the utility model can improve the stability of skin detection instrument power supply and use, reduces skin detection instrument cost, strengthen skin detection instrument appearance looks elegant.
Description
Technical field
The utility model embodiment is related to human skin testing field, is examined more particularly to a kind of skin detection instrument and skin
Examining system.
Background technology
With the development of science and technology, people become more concerned with health ＆ beauty, and it is particularly important that detection to body, in human body
In the research of component, measurement human-body biological impedance value can obtain the information related with human health status such as moisture, fat,
The early diagnosis of monitoring, disease to human body situation has great significance, therefore more and more skin test products should
Transport and give birth to.Existing skin test product is battery powered, it is necessary to which powering up pond could normally use, due to cell voltage not
It is steady, it is necessary to replace battery or battery be finished after the shortcomings of needing charging have impact on the performance and convenience of product, and power up pond
The limitation brought to product structure, influences appearance looks elegant, also increases cost.
Utility model content
The utility model embodiment mainly solving the technical problems that provide a kind of skin detection instrument and skin detection system,
The convenience that the stability of skin detection instrument power supply can be improved and used, reduces skin detection instrument cost, strengthens skin detection
Instrument appearance looks elegant.
In order to solve the above technical problems, the technical solution that the utility model embodiment uses is：A kind of skin is provided
Detector.The skin detection instrument includes communication port and is used to be connected to external smart terminal with electric loading, the communication port
Communication interface；The skin detection instrument further includes：Communication interface power-supply circuit, respectively with the communication port and using electric loading
Connection, for receiving the sine wave AC signal for the predeterminated frequency that the exterior intelligent terminal produces by the communication port,
And the sine wave AC signal is converted into the direct current supply voltage with needed for electric loading.
Alternatively, the frequency of the sine wave AC signal is 22KHz.
Alternatively, the communication interface power-supply circuit includes：Voltage transformation module, is connected with the communication port, and
The voltage transformation module is used for the sine that the predeterminated frequency that the exterior intelligent terminal produces is received by the communication port
Ripple AC signal, and the sine wave AC signal is converted to the DC voltage letter for meeting the electricity consumption load supplying requirement
Number；Voltage stabilizing module, respectively with the voltage transformation module and it is described be connected with electric loading, and the Voltage stabilizing module be used for institute
State d. c. voltage signal and carry out voltage stabilizing, and export the direct current supply voltage with needed for electric loading.
Alternatively, the voltage transformation module includes at least two boosting units, and at least two boosting units are used for institute
Sine wave AC signal is stated to boost, and the sine wave AC signal is converted to meet the electricity consumption load supplying will
The d. c. voltage signal asked.
Alternatively, at least two boosting units include：First boosting unit, is connected with the communication port, for pair
The sine wave AC signal boosts, and exports the first boost signal；Second boosting unit, respectively with the communication port
Connected with first boosting unit, for the voltage after being superimposed to the sine wave AC signal with first boost signal
Signal boosts, and exports the second boost signal；3rd boosting unit, boosts with the communication port and described second respectively
Unit connects, and boosts for the voltage signal after being superimposed to the sine wave AC signal with second boost signal,
And export the 3rd boost signal；4th boosting unit, respectively with the communication port, the 3rd boosting unit and the regulator circuit
Connection, boosts for the voltage signal after being superimposed to the sine wave AC signal with the 3rd boost signal, and defeated
Go out the d. c. voltage signal to the regulator circuit.
Alternatively, first boosting unit includes first pair of Schottky diode, the first capacitance and the second capacitance；It is described
Second boosting unit includes second pair of Schottky diode, the 3rd capacitance and the 4th capacitance；3rd boosting unit includes the
Three pairs of Schottky diodes, the 5th capacitance and the 6th capacitance；4th boosting unit includes the 4th pair of Schottky diode, the
Seven capacitances and the 8th capacitance；The public pole of first pair of Schottky diode is via first capacitance and the communication port
Connection, the plus earth of first pair of Schottky diode, the cathode and described second of first pair of Schottky diode
The anode connection of double Schottky diodes, and via second capacity earth；Second pair of Schottky diode it is public
Pole is connected via the 3rd capacitance with the communication port, the cathode of second pair of Schottky diode with described 3rd pair
The anode connection of Schottky diode, and via the 4th capacity earth；The public pole of the 3rd pair of Schottky diode
It is connected via the 5th capacitance with the communication port, the cathode of the 3rd pair of Schottky diode and the 4th couple of Xiao
The anode connection of special based diode, and via the 6th capacity earth；The public pole warp of the 4th pair of Schottky diode
It is connected by the 7th capacitance with the communication port, cathode and the Voltage stabilizing module of the 4th pair of Schottky diode connect
Connect, and via the 8th capacity earth.
Alternatively, the Voltage stabilizing module includes voltage stabilizing chip and power output end；The input pin of the voltage stabilizing chip and institute
The enabled foot for stating voltage stabilizing chip is connected with the voltage transformation module, the ground pin ground connection of the voltage stabilizing chip, the voltage stabilizing
The output pin of chip is connected with the power output end.
Alternatively, the Voltage stabilizing module further includes the 9th capacitance and the tenth capacitance；One end of 9th capacitance with it is described
Voltage transformation module connects, and is connected respectively with the input pin of the voltage stabilizing chip and the enabled foot of the voltage stabilizing chip, described
The other end ground connection of 9th capacitance；One end of tenth capacitance is connected with the output pin of the voltage stabilizing chip, and with the electricity
Source output terminal connects, the other end ground connection of the tenth capacitance.
Alternatively, the communication interface power-supply circuit further includes signal isolation module, the signal isolation module with it is described
Communication port connects, for isolating the earth signal of the skin detection instrument and external smart terminal.
Alternatively, the signal isolation module includes the first diode and the second diode；The moon of first diode
The cathode of pole and second diode is connected with the communication port, the anode and the described 2nd 2 of first diode
The anode of pole pipe is grounded.
In order to solve the above technical problems, another technical solution that the utility model embodiment uses is：A kind of skin is provided
Skin detecting system, the skin detection system include intelligent terminal and above-mentioned skin detection instrument；The communication of the intelligent terminal
Interface is connected with the communication port of the skin detection instrument, and the intelligent terminal produces in advance when being connected with the skin detection instrument
If the sine wave AC signal of frequency, and the sine wave AC signal is exported by the communication interface；The skin detection
The communication interface power-supply circuit of instrument receives the sine wave AC signal by the communication port, and by the sine wave AC
Signal be converted to the skin detection instrument with the direct current supply voltage needed for electric loading.
The beneficial effect of the utility model embodiment is：The situation of the prior art is different from, the utility model embodiment is led to
The sine wave AC signal of the predeterminated frequency of the communication interface output of communication interface power-supply circuit reception external smart terminal is crossed, and
The sine wave AC signal is converted to the direct current supply voltage needed for electric loading, so as to export stable direct current supply voltage
Give electricity consumption load supplying so that skin detection instrument need not install battery powered additional, improve skin detection instrument power supply stability and
The convenience used, and skin detection instrument cost is also reduced, strengthen skin detection instrument appearance looks elegant.
Brief description of the drawings
Fig. 1 is the circuit diagram of one embodiment of the utility model skin detection instrument；
Fig. 2 is the circuit diagram of another embodiment of the utility model skin detection instrument；
Fig. 3 is the circuit diagram of the another embodiment of the utility model skin detection instrument.
Specific embodiment
Referring to Fig. 1, the skin detection instrument that the utility model embodiment provides includes communication port 100, with electric loading 200
With communication interface power-supply circuit 300.
The communication port 100 is used for the communication interface for being connected to external smart terminal, and communication interface power-supply circuit 300 divides
It is not connected with the communication port 100 and with electric loading 200, communication interface power-supply circuit 300 is used to pass through the communication port
100 receive the sine wave AC signal for the predeterminated frequency that the exterior intelligent terminals produce, and by the sine wave AC signal
Be converted to the direct current supply voltage with needed for electric loading 200.
It should be noted that the external smart terminal being connected with skin detection instrument can be mobile phone, computer etc. can be with skin
The equipment of skin detector communication.The communication port 100 of skin detection instrument is adapted to the communication interface of external smart terminal, such as：
When the communication port 100 of skin detection instrument for headset plug or USB plug when port when, accordingly, external smart terminal it is logical
Letter interface is the interfaces such as earphone socket or the USB socket being adapted to the communication port 100 of skin detection instrument, or, work as outside
Intelligent terminal is mobile phone, and when the communication interface of external smart terminal is earphone socket, the communication port 100 of skin detection instrument is ear
Machine transplanting of rice head.
In the utility model embodiment, the frequency of above-mentioned sine wave AC signal is chosen as 22KHz.Frequency is 22KHz
Sine wave AC signal the communication interface driving power of external smart terminal can be caused to reach maximum, and human ear can not be known
The frequency is not the sine wave AC signal of 22KHz.And when skin detection instrument is connected to external smart end by communication port 100
The communication interface at end, when establishing connection with external smart terminal, external smart terminal produces the sine wave AC of a predeterminated frequency
Signal, such as the sine wave AC signal of the 1.5V of 22KHz, the sine wave AC signal are connect by the communication of external smart terminal
Mouth, the communication port 100 of skin detection instrument are input to communication interface power-supply circuit 300.Communication interface power-supply circuit 300 by this just
String ripple AC signal is converted to the direct current supply voltage needed for electric loading 200, which is preferably 3.3V.
The communication interface that the utility model embodiment receives external smart terminal by communication interface power-supply circuit 300 exports
Predeterminated frequency sine wave AC signal, and by the sine wave AC signal be converted to needed for electric loading 200 direct current supply
Piezoelectric voltage, so as to export stable direct current supply voltage to being powered with electric loading 200 so that skin detection instrument need not install battery additional
Power supply, the convenience for improving the stability of skin detection instrument power supply and using, and skin detection instrument cost is also reduced, increase
Strong skin detection instrument appearance looks elegant.
Referring to Fig. 2, specifically, the communication interface power-supply circuit 300 of the utility model skin detection instrument turns including voltage
Change the mold block 310 and Voltage stabilizing module 320.
Voltage transformation module 310 is connected with the communication port 100, and voltage transformation module 310 is used to pass through the communication
Port 100 receives the sine wave AC signal for the predeterminated frequency that the exterior intelligent terminal produces, and by the sine wave AC
Signal, which is converted to, meets the d. c. voltage signal with 200 power reguirements of electric loading.
Voltage stabilizing module 320 respectively with the voltage transformation module 310 and it is described be connected with electric loading 200, Voltage stabilizing module 320
For carrying out voltage stabilizing to the d. c. voltage signal, and export the direct current supply voltage with needed for electric loading 200.
In the present embodiment, when skin detection instrument is connected to by communication port 100 communication interface of external smart terminal,
When establishing connection with external smart terminal, the sine wave AC signal that external smart terminal produces passes through the logical of external smart terminal
Letter interface, the communication port 100 of skin detection instrument are input to the voltage transformation module 310 of communication interface power-supply circuit 300.Voltage
When modular converter 310 receives the sine wave AC signal, which is converted to meet is supplied with electric loading 200
The d. c. voltage signal that electricity requires, and the d. c. voltage signal is exported to Voltage stabilizing module 320.Voltage stabilizing module 320 is to the direct current
After voltage signal carries out voltage stabilizing, export stable direct current supply voltage and extremely use electric loading 200, needed for being provided with electric loading 200
Direct current supply voltage.For example, the sine wave AC signal of 1.5V is converted to the direct current of more than 4.5V by voltage transformation module 310
Voltage signal, after Voltage stabilizing module 320 carries out voltage stabilizing to the d. c. voltage signal, by DC voltage stability in 3.3V, so as to export
The direct current supply voltage of 3.3V is powered with electric loading 200.
Further, communication interface power-supply circuit 300 further includes signal isolation module 330, and signal isolation module 330 is with leading to
Letter port 100 connects.Signal isolation module 330 is used to isolate the skin detection instrument and the earth signal of external smart terminal causes
When being connected by communication port 100 with the communication interface of external smart terminal of skin detection instrument, skin detection instrument earth signal with
External smart terminal earth signal is isolated, the two does not interfere with each other, so as to ensure the stability of the two communication.
Referring to Fig. 3, specifically, the voltage transformation module 310 in communication interface power-supply circuit 300 includes at least two liters
Unit is pressed, which is used to boost to the sine wave AC signal, and the sine wave is handed over
Stream signal, which is converted to, meets the d. c. voltage signal with 200 power reguirements of electric loading.
The series that voltage transformation module 310 boosts is different, and the boost voltage of output is of different sizes, the utility model embodiment
Specifically, which includes the first boosting unit 311, the second boosting unit 312, the 3rd boosting unit 313
With the 4th boosting unit 314.
First boosting unit 311 is connected with the communication port 100, and the first boosting unit 311 is used for the sine wave
AC signal boosts, and exports the first boost signal.
Second boosting unit 312 is connected with the communication port 100 and first boosting unit 311 respectively, second liter
Pressure unit 312 is used for the voltage signal after being superimposed to the sine wave AC signal with first boost signal and boosts,
And export the second boost signal.
3rd boosting unit 313 is connected with the communication port 100 and second boosting unit 312 respectively, the 3rd liter
Pressure unit 313 is used for the voltage signal after being superimposed to the sine wave AC signal with second boost signal and boosts,
And export the 3rd boost signal.
4th boosting unit 314 connects with the communication port 100, the 3rd boosting unit 313 and the regulator circuit respectively
Connect, the 4th boosting unit 314 is used for the voltage signal after being superimposed to the sine wave AC signal with the 3rd boost signal
Boost, and export the d. c. voltage signal to the regulator circuit.
In the present embodiment, the sine wave AC signal inputted from communication port 100 is separately input to the first boosting unit
311st, the second boosting unit 312, the 3rd boosting unit 313 and the 4th boosting unit 314.First boosting unit 311 is to input
Sine wave AC signal obtains the first boost signal after being boosted, and first boost signal is exported to the second boosting unit
312；Voltage signal after second boosting unit 312 is superimposed sine wave AC signal with the first boost signal boosts, and obtains
The second boost signal is obtained, and second boost signal is exported to the 3rd boosting unit 313；3rd boosting unit 313 is to sine
Voltage signal after ripple AC signal is superimposed with the second boost signal boosts, and obtains the 3rd boost signal, and by the 3rd
Boost signal is exported to the 4th boosting unit 314；4th boosting unit 314 folds sine wave AC signal and the 3rd boost signal
Voltage signal after adding boosts, and obtains the d. c. voltage signal met with 200 power reguirements of electric loading.
Referring to Fig. 3, the first boosting unit 311 includes first couple of Schottky diode D1, the first capacitance C1 and the
Two capacitance C2；Second boosting unit 312 includes second couple of Schottky diode D2, the 3rd capacitance C3 and the 4th capacitance C4；3rd
Boosting unit 313 includes the 3rd couple of Schottky diode D3, the 5th capacitance C5 and the 6th capacitance C6；4th boosting unit 314 wraps
Include the 4th couple of Schottky diode D4, the 7th capacitance C7 and the 8th capacitance C8.
The public pole p3 of first couple of Schottky diode D1 is connected via the first capacitance C1 with communication port 100, first pair
The anode p1 ground connection of Schottky diode D1, the cathode p2 and second couple of Schottky diode D2 of first couple of Schottky diode D1
Anode p1 connections, and via the second capacitance C2 be grounded.
The public pole p3 of second couple of Schottky diode D2 is connected via the 3rd capacitance C3 with communication port 100, second pair
The cathode p2 of Schottky diode D2 is connected with the anode p1 of the 3rd couple of Schottky diode D3, and is connect via the 4th capacitance C4
Ground.
The public pole p3 of 3rd couple of Schottky diode D3 is connected via the 5th capacitance C5 with communication port 100, the 3rd pair
The cathode p2 of Schottky diode D3 is connected with the anode p1 of the 4th couple of Schottky diode D4, and is connect via the 6th capacitance C6
Ground.
The public pole p3 of 4th couple of Schottky diode D4 is connected via the 7th capacitance C7 with communication port 100, the 4th pair
The cathode p2 of Schottky diode D4 is connected with Voltage stabilizing module 320, and is grounded via the 8th capacitance C8.
The utility model, as the diode in Boost topology, can be to skin using double Schottky diodes of low pressure drop
The direct current supply voltage that relatively high power is provided with electric loading 200 of skin detector.
Voltage stabilizing module 320 includes voltage stabilizing chip U1 and power output end VCC；The input pin Vin of voltage stabilizing chip U1 and voltage stabilizing
The enabled foot EN of chip U1 is connected with voltage transformation module 310, the ground pin GND ground connection of voltage stabilizing chip U1, voltage stabilizing chip U1
Output pin Vout be connected with power output end VCC.
In order to make the voltage of output more stable, Voltage stabilizing module 320 further includes the 9th capacitance C9 and the tenth capacitance C10；9th
One end of capacitance C9 is connected with voltage transformation module 310, and respectively with the input pin Vin and voltage stabilizing chip U1 of voltage stabilizing chip U1
Enabled foot EN connections, the other end ground connection of the 9th capacitance C9；One end of tenth capacitance C10 and the output pin Vout of voltage stabilizing chip U1
Connection, and be connected with power output end VCC, the other end ground connection of the tenth capacitance C10.
The voltage that voltage transformation module 310 exports charges to the 9th capacitance C9, and the voltage on the 9th capacitance C9 is to be input to
The voltage of the enabled foot EN of the input pin Vin and voltage stabilizing chip U1 of voltage stabilizing chip U1, when the electricity of the enabled foot EN of voltage stabilizing chip U1
Press for low level when, voltage stabilizing chip U1 work, to voltage transformation module 310 export voltage carry out voltage stabilizing.Voltage stabilizing chip U1's
The voltage that output terminal exports charges to the tenth capacitance C10, and the voltage on the tenth capacitance C10 is to be exported by power output end VCC
Direct current supply voltage.9th capacitance C9 and the tenth capacitance C10 also act as filter action.
Signal isolation module 330 includes the first diode DM and the second diode DN；The cathode of first diode DM and
The cathode of two diode DN is connected with communication port 100, and the anode of the anode of the first diode DM and the second diode DN are equal
Ground connection.
First diode DM and the second diode DN isolate with earth signal, outside skin detection instrument earth signal and earth signal
Intelligent terminal earth signal is isolated so that the communication between skin detection instrument and external smart terminal is interference-free, and both enhancings are logical
The stability of news.
The operation principle of skin detection instrument in the utility model embodiment is described in detail below：
When skin detection instrument is connected to the communication interface of external smart terminal by communication port 100, external smart is whole
End exports the sine wave AC signal of the 1.5V of 22KHz by its communication interface, which passes through skin detection
The communication port 100 of instrument provides signal source, i.e. the sine wave AC signal of the 1.5V of 22KHz for communication interface power-supply circuit 300
It is transferred to the voltage transformation module 310 of communication interface power-supply circuit 300.
As shown in figure 3, the sine wave AC signal that external smart terminal provides is added on the first capacitance C1, when the sine wave
When AC signal is in positive axis, the public pole p3 and cathode p2 of first couple of Schottky diode D1 is in the conduction state, at this time
For sine wave AC signal by charging after the first capacitance C1 to the second capacitance C2, the maximum of the second capacitance C2 chargings is input
Sine wave AC signal maximumTimes.When sine wave AC signal is in negative semiaxis, due to first pair of two pole of Schottky
The acting in opposition of pipe D1, can prevent electric current from pouring in down a chimney, and be at this time the 4th after the voltage superposition of the 3rd capacitance C3 and the second capacitance C2
Capacitance C4 charges, and the maximum of the 4th capacitance C4 chargings at this time is the sine wave AC signal maximum of inputTimes.Together
Should sine wave AC signal when reaching the 8th capacitance C8, be the 8th electricity after the voltage superposition of the 7th capacitance C7 and the 6th capacitance C6
Hold C8 chargings, the charging voltage value of the 8th capacitance C8 is the sine wave AC signal maximum of input at this timeTimes, therefore electricity
Pressure modular converter 310 can reach the effect of voltage-doubling boost.
Charging voltage on 8th capacitance C8 is exported to the DC voltage letter of Voltage stabilizing module 320 for voltage transformation module 310
Number, which exports to the input pin Vin of voltage stabilizing chip U1, while the d. c. voltage signal is filled to the 9th capacitance C9
Electricity so that the enabled foot EN of voltage stabilizing chip U1 is high level, voltage stabilizing chip U1 when the enabled foot EN of voltage stabilizing chip U1 is high level
Work, the d. c. voltage signal that voltage stabilizing chip U1 exports voltage transformation module 310 carry out voltage stabilizing, will pass through voltage stabilizing chip U1's
The stable voltage of output pin Vout outputs, the voltage of the voltage stabilizing charge to the tenth capacitance C10, the charging electricity on the tenth capacitance C10
Pressure is the direct current supply voltage that Voltage stabilizing module 320 exports, and the direct current supply voltage is by power output end VCC to skin detection
Instrument is powered with electric loading 200, which is preferably 3.3V DC voltages.
In the utility model embodiment, when intelligent terminal is connected with communication interface power-supply circuit, pass through intelligent terminal
The sine wave AC signal of certain frequency is provided to skin detection instrument so that skin detection instrument can be believed according to the sine wave AC
Number, by communication interface power-supply circuit by the sine wave AC signal be converted to skin detection instrument with the direct current needed for electric loading
Supply voltage.So that skin detection instrument need not install battery powered additional, and electricity is taken by the communication interface of intelligent terminal,
The convenience that the stability of skin detection instrument power supply can be improved and used, moreover, the cost of skin detection instrument can be reduced, increases
Strong skin detection instrument appearance looks elegant.
The utility model embodiment further also provides a kind of skin detection system, which includes intelligence eventually
Skin detection instrument in end and above-described embodiment, the communication interface of the intelligent terminal and the communication port of the skin detection instrument
Connection, the intelligent terminal produces the sine wave AC signal of predeterminated frequency when being connected with the skin detection instrument, and passes through
The communication interface exports the sine wave AC signal；The communication interface power-supply circuit of the skin detection instrument passes through described logical
Believe that port receives the sine wave AC signal, and the sine wave AC signal is converted to the electricity consumption of the skin detection instrument
Direct current supply voltage needed for load.So that skin detection instrument need not install battery powered additional, and pass through the logical of intelligent terminal
Letter interface takes electricity, moreover, the cost of skin detection instrument can be reduced, strengthens skin detection instrument appearance looks elegant.
Skin detection instrument embodiment is see for the other structures of skin detection instrument and function in skin detection system, this
Place no longer repeats one by one.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is directly or indirectly used in
Other related technical areas, are equally included in the patent within the scope of the utility model.
Claims (11)
1. a kind of skin detection instrument, including communication port and it is used to be connected to external smart end with electric loading, the communication port
The communication interface at end；It is characterized in that, the skin detection instrument further includes：
Communication interface power-supply circuit, is connected with the communication port and with electric loading respectively, for being connect by the communication port
The sine wave AC signal for the predeterminated frequency that the exterior intelligent terminal produces is received, and the sine wave AC signal is converted to
The direct current supply voltage with needed for electric loading.
2. skin detection instrument according to claim 1, it is characterised in that the frequency of the sine wave AC signal is
22KHz。
3. skin detection instrument according to claim 1 or 2, it is characterised in that the communication interface power-supply circuit includes：
Voltage transformation module, is connected with the communication port, and the voltage transformation module is used to pass through the communication port
The sine wave AC signal for the predeterminated frequency that the exterior intelligent terminal produces is received, and the sine wave AC signal is turned
It is changed to the d. c. voltage signal for meeting the electricity consumption load supplying requirement；
Voltage stabilizing module, respectively with the voltage transformation module and it is described be connected with electric loading, and the Voltage stabilizing module be used for pair
The d. c. voltage signal carries out voltage stabilizing, and exports the direct current supply voltage with needed for electric loading.
4. skin detection instrument according to claim 3, it is characterised in that the voltage transformation module includes at least two boostings
Unit, at least two boosting units are used to boost to the sine wave AC signal, and by the sine wave AC
Signal is converted to the d. c. voltage signal for meeting the electricity consumption load supplying requirement.
5. skin detection instrument according to claim 4, it is characterised in that at least two boosting units include：
First boosting unit, is connected with the communication port, and for boosting to the sine wave AC signal, and
Export the first boost signal；
Second boosting unit, is connected with the communication port and first boosting unit respectively, and for the sine
Voltage signal after ripple AC signal is superimposed with first boost signal boosts, and the second boost signal of output；
3rd boosting unit, is connected with the communication port and second boosting unit respectively, and for the sine
Voltage signal after ripple AC signal is superimposed with second boost signal boosts, and the 3rd boost signal of output；
4th boosting unit, is connected with the communication port, the 3rd boosting unit and the regulator circuit respectively, and for pair
Voltage signal after the sine wave AC signal is superimposed with the 3rd boost signal boosts, and the output direct current
Voltage signal is to the regulator circuit.
6. skin detection instrument according to claim 5, it is characterised in that first boosting unit includes first couple of Xiao Te
Based diode, the first capacitance and the second capacitance；Second boosting unit include second pair of Schottky diode, the 3rd capacitance and
4th capacitance；3rd boosting unit includes the 3rd pair of Schottky diode, the 5th capacitance and the 6th capacitance；Described 4th liter
Pressure unit includes the 4th pair of Schottky diode, the 7th capacitance and the 8th capacitance；
The public pole of first pair of Schottky diode is connected via first capacitance with the communication port, and described first
The plus earth of double Schottky diodes, the cathode of first pair of Schottky diode and second pair of Schottky diode
Anode connection, and via second capacity earth；
The public pole of second pair of Schottky diode is connected via the 3rd capacitance with the communication port, and described second
The cathode of double Schottky diodes is connected with the anode of the 3rd pair of Schottky diode, and is connect via the 4th capacitance
Ground；
The public pole of the 3rd pair of Schottky diode is connected via the 5th capacitance with the communication port, and the described 3rd
The cathode of double Schottky diodes is connected with the anode of the 4th pair of Schottky diode, and is connect via the 6th capacitance
Ground；
The public pole of the 4th pair of Schottky diode is connected via the 7th capacitance with the communication port, and the described 4th
The cathode of double Schottky diodes is connected with the Voltage stabilizing module, and via the 8th capacity earth.
7. skin detection instrument according to claim 3, it is characterised in that the Voltage stabilizing module includes voltage stabilizing chip and power supply
Output terminal；
The input pin of the voltage stabilizing chip and the enabled foot of the voltage stabilizing chip are connected with the voltage transformation module, described steady
The ground pin ground connection of chip is pressed, the output pin of the voltage stabilizing chip is connected with the power output end.
8. skin detection instrument according to claim 7, it is characterised in that the Voltage stabilizing module further includes the 9th capacitance and
Ten capacitances；
One end of 9th capacitance is connected with the voltage transformation module, and the input pin with the voltage stabilizing chip and institute respectively
State the enabled foot connection of voltage stabilizing chip, the other end ground connection of the 9th capacitance；One end of tenth capacitance and the voltage stabilizing
The output pin connection of chip, and be connected with the power output end, the other end ground connection of the tenth capacitance.
9. skin detection instrument according to claim 3, it is characterised in that the communication interface power-supply circuit further includes signal
Isolation module, the signal isolation module are connected with the communication port, for isolating the skin detection instrument and external smart
The earth signal of terminal.
10. skin detection instrument according to claim 9, it is characterised in that the signal isolation module includes the one or two pole
Pipe and the second diode；
The cathode of the cathode of first diode and second diode is connected with the communication port, and the described 1st
The anode of the anode of pole pipe and second diode is grounded.
11. a kind of skin detection system, it is characterised in that including any one institute in intelligent terminal, and claims 1 to 10
The skin detection instrument stated；
The communication interface of the intelligent terminal is connected with the communication port of the skin detection instrument, the intelligent terminal with it is described
The sine wave AC signal of predeterminated frequency is produced when skin detection instrument connects, and the sine wave is exported by the communication interface
AC signal；The communication interface power-supply circuit of the skin detection instrument receives the sine wave AC by the communication port to be believed
Number, and by the sine wave AC signal be converted to the skin detection instrument with the direct current supply voltage needed for electric loading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720181258.5U CN207356070U (en) | 2017-02-27 | 2017-02-27 | A kind of skin detection instrument and skin detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720181258.5U CN207356070U (en) | 2017-02-27 | 2017-02-27 | A kind of skin detection instrument and skin detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207356070U true CN207356070U (en) | 2018-05-15 |
Family
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108366738A (en) * | 2017-02-27 | 2018-08-03 | 深圳和而泰家居在线网络科技有限公司 | A kind of skin detection instrument and skin detection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108366738A (en) * | 2017-02-27 | 2018-08-03 | 深圳和而泰家居在线网络科技有限公司 | A kind of skin detection instrument and skin detection system |
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Effective date of registration: 20200413 Address after: 1706, Fangda building, No. 011, Keji South 12th Road, high tech Zone, Yuehai street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen shuliantianxia Intelligent Technology Co., Ltd Address before: 518000, building 10, building ten, building D, Shenzhen Institute of Aerospace Science and technology, 6 hi tech Southern District, Nanshan District, Shenzhen, Guangdong 1003, China Patentee before: SHENZHEN H & T HOME ONLINE NETWORK TECHNOLOGY Co.,Ltd. |
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