A kind of skin cleaning instrument with rotating speed self-regulating function
Technical field
The utility model is related to skin cleaning instrument technical fields, and in particular to a kind of skin cleaning instrument with rotating speed self-regulating function.
Background technology
Skin cleaning instrument is the product of rising in recent years, it be for assisting people to carry out a kind of clean tool of skin, can be with
Obtain the instrument of better cleaning effect.Skin cleaning instrument is all to drive brush head with constant rotate by motor at work,
To realize the cleaning of skin;But since human body has certain profile, its brush head of existing skin cleaning instrument to be moved to such as the bridge of the nose
When equal profiles adjacent margins more outstanding, brush head can still be rotated at a predetermined rate, can be made to part outstanding
At stimulation, user is enabled not feel well.
Invention content
To overcome drawbacks described above, the purpose of this utility model to be to provide a kind of clean skin with rotating speed self-regulating function
Instrument.
The purpose of this utility model is achieved through the following technical solutions:
The utility model is a kind of skin cleaning instrument with rotating speed self-regulating function, including:Skin cleaning instrument shell, the skin cleaning instrument
Motor is installed in shell, brush head is installed on the output shaft of the motor;Current detection circuit, institute are connected on the motor
Current detection circuit is stated for being acquired to the feedback current on motor, and feedback current is exported into controller;Institute
It states controller to be respectively connected with memory and driving circuit, is used to be sent to driving circuit according to the control signal inputted
Control instruction, or in memory by feedback current storage received by current time, and transfer from the memory previous
The feedback current at current time is compared by the feedback current at moment with the feedback current of previous moment, further according to
Comparison result adjusts the control instruction to the driving circuit;The driving circuit is connected with motor, for received by
Control instruction drive motor work.
Further, the utility model further includes:Rechargeable battery, the rechargeable battery respectively with motor, driving circuit and control
Device processed is connected, and is used to be powered for motor, driving circuit and controller.
Further, it is connected to charging circuit on the rechargeable battery.
Further, control button is connected on the controller, the control button is used for controller input control signal.
The utility model is acquired the feedback current on motor, and according to the size of its feedback current, adjusts motor
Rotating speed, enable user feel more comfortable.
Description of the drawings
The utility model is described in detail by following preferred embodiments and attached drawing for ease of explanation,.
Fig. 1 is the integrated circuit structural schematic diagram of the utility model;
Fig. 2 is the charging circuit configuration schematic diagram of the utility model.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
The utility model is further described in example.It should be appreciated that specific embodiment described herein is only used to explain this reality
With novel, it is not used to limit the utility model.
It please referring to Fig.1 to Fig. 2, the utility model is a kind of skin cleaning instrument with rotating speed self-regulating function, including:Skin cleaning instrument
Shell is equipped with motor 1 in the skin cleaning instrument shell, brush head is equipped on the output shaft of the motor 1;Connect on the motor 1
It is connected to current detection circuit 2, the current detection circuit 2 will feed back electricity for being acquired to the feedback current on motor 1
Flow valuve is exported into controller 3;The controller 3 is connected with memory 4 and driving circuit 5 respectively, according to what is inputted
It controls signal and sends control instruction to driving circuit 5, or for feedback current received by current time to be stored in storage
In device 4, and transfer from the memory 4 feedback current of previous moment, by the feedback current at current time with it is previous when
The feedback current at quarter is compared, further according to comparison result adjustment to the control instruction of the driving circuit 5;The driving circuit
5 are connected with motor 1, for being worked according to received control instruction drive motor 1.
The operation principle of the utility model is:When brush head reaches the edge of face protruding part, due to the effect of resistance,
So that the feedback current at the current time on motor 1 is bigger than previous moment, therefore can be sentenced by the size of its feedback current
Whether disconnected brush head is in the edge of face protruding part;The difference that controller 3 passes through the feedback current to former and later two moment
Value is compared, if its difference exceeds scheduled range, adjusts the control instruction of driving circuit 5 so that motor 1 reduces rotation
Speed.
Further, the utility model further includes:Rechargeable battery 6, the rechargeable battery 6 respectively with motor 1, driving circuit 5
It is connected with controller 3, is used to be powered for motor 1, driving circuit 5 and controller 3.
Further, it is connected to charging circuit 7 on the rechargeable battery 6.The charging circuit 7 is by rectifier diode D14, chip
U3, resistance R13, capacitance C8 and lithium battery BT1 compositions, rectifier diode D14, chip U3, resistance R13, capacitance C8 and lithium battery
BT1 is sequentially connected in series, and chip U3 and TB4054 are a linear lithium electricity charging management chips, are operated in typical 5V voltage ranges
It is interior.5V voltages are inputted by direct current jack, and 4 feet of charging chip are entered by rectifier diode D14, and 3 feet of charging chip are connected to
The anode of lithium battery, and the cathode of lithium battery is connected to ground terminal by battery protecting circuit.
Further, control button 8 is connected on the controller, the control button 8 is used to believe to controller input control
Number.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.