CN207866889U - Electric toothbrush undervoltage warning circuit - Google Patents
Electric toothbrush undervoltage warning circuit Download PDFInfo
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- CN207866889U CN207866889U CN201721546446.XU CN201721546446U CN207866889U CN 207866889 U CN207866889 U CN 207866889U CN 201721546446 U CN201721546446 U CN 201721546446U CN 207866889 U CN207866889 U CN 207866889U
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- triode
- diode
- warning circuit
- electric toothbrush
- undervoltage warning
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Abstract
A kind of electric toothbrush undervoltage warning circuit, including a switch unit and an indicating unit, the switch unit includes a triode and a first resistor, the indicating unit includes one first diode and one second diode, the base stage of the triode receives a DC voltage via first resistor, the base earth of the triode, the collector of the triode receives the DC voltage, the collector of the triode is electrically connected the anode of first diode, the emitter of the triode is electrically connected the anode of the cathode and the second diode of first diode, the minus earth of second diode.The electric toothbrush undervoltage warning circuit of the utility model is in the too low alarm prompt of supply voltage.
Description
Technical field
The utility model is related to undervoltage warning circuit more particularly to a kind of electric toothbrush undervoltage warning circuits.
Background technology
Toothbrush is the tool that people are used for cleaning tooth, and with the raising of quality of the life, the use of electric toothbrush is increasingly
It is universal.Existing electric toothbrush can be divided into rotating electric toothbrush and acoustic toothbrush, and the rotating electric toothbrush is to pass through toothbrush
Rotation carrys out cleaning toothbrush to head in the oral cavity, and acoustic power toothbrush is to clean tooth by head toothbrushes high-frequency vibration in the oral cavity
Brush.
Existing electric toothbrush generally comprises shell, head toothbrushes, the holder being contained in shell, the electricity being installed on holder
The elements such as machine and circuit board, and the elements such as motor and circuit board turn generally by being powered for power conversion circuit when powering
When enough voltage can not be provided by changing circuit, electric toothbrush can be caused to can not work normally.
Utility model content
In view of the above, it is necessary to provide it is a kind of when supply voltage is too low can alarm the under-voltage report of electric toothbrush
Alert circuit.A kind of electric toothbrush undervoltage warning circuit, including a switch unit and an indicating unit, the switch unit include one
Triode and a first resistor, the indicating unit include one first diode and one second diode, the base of the triode
Pole receives a DC voltage via first resistor, the base earth of the triode, described in the collector of the triode receives
DC voltage, the collector of the triode are electrically connected the anode of first diode, the emitter electricity of the triode
Property connects the anode of the cathode and the second diode of first diode, the minus earth of second diode.
Preferably, the base stage of the triode is grounded via a second resistance.
Preferably, the collector of the triode receives the DC voltage via a 3rd resistor.
Preferably, the triode is a NPN type triode, and first diode and the second diode are different colours
Light emitting diode.
Compared to the prior art, the electric toothbrush undervoltage warning circuit of the utility model is when the direct current for being supplied to actuator
When pressing electricity shortage, triode cut-off, electric current can not flow through the second diode, the second diode cut-off, and described the
Two diodes do not shine, and electric current flows through first diode, first diode current flow, and first LED lighting refers to
Show DC-voltage supply exception.
Description of the drawings
Fig. 1 is the stereoscopic schematic diagram of a preferred embodiment of the utility model electric toothbrush.
Fig. 2 is the decomposed schematic diagram of Fig. 1.
Fig. 3 is the circuit diagram of the better embodiment of the undervoltage warning circuit of Fig. 2.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.In the absence of conflict, the feature in following embodiment and embodiment can be combined with each other.It is new based on this practicality
Embodiment in type, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
It should be noted that in the present invention, when a component is considered as with another component " being connected ", it
Can be connected directly with another component, can also be to be indirectly connected by component placed in the middle and another component.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with the technology for belonging to the utility model
The normally understood meaning of technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, rather than it is intended to limitation the utility model.
As shown in Figures 1 and 2, a preferred embodiment of the utility model electric toothbrush, including a shell 10, a head toothbrushes
20, the holder 30 that is removably installed in the shell 10, is set the actuator 40 for being detachably arranged at the holder 30
In on the holder 30 and to the actuator 40 power a undervoltage warning circuit 60, be electrically connected at the actuator 40
A circuit board 70, a waterproof jacket 80 between undervoltage warning circuit 60 and a proof mechanism of water 90.The actuator 40, which is equipped with, to be prolonged
A drive rod 42 on 10 top of the shell is stretched out, the head toothbrushes 20 are removably installed on the drive rod 42.It is described
Actuator 40 is for driving the drive rod 42 to vibrate.The circuit board 70 is for controlling the actuator 40 and described under-voltage
Warning circuit 60.The waterproof jacket 80 is located at the top of the holder 30, and the proof mechanism of water 90 is connected to the holder 30
Bottom end.
Fig. 3 is please referred to, the undervoltage warning circuit 60 includes a switch unit 61 and an indicating unit 62.
The switch unit 61 includes a triode T and resistance R1, R2.The indicating unit 62 includes light emitting diode
D1, D2 and resistance R3.The base stage of the triode T receives a DC voltage via resistance R1.The base stage of the triode T passes through
It is grounded by resistance R2.The collector of the triode T receives the DC voltage via resistance R3.The current collection of the triode T
Pole is electrically connected the anode of the light emitting diode D1.The emitter of the triode T is electrically connected the light emitting diode D1
Cathode and light emitting diode D2 anode.The minus earth of the light emitting diode D2.Wherein, the triode T is a NPN
Type triode, described light emitting diode D1, D2 are the light emitting diode of different colours.
When work, when being supplied to the DC-voltage supply of the actuator 40 normal, i.e., DC voltage is in three pole
When the base bleeder of pipe T is more than the sum of the conducting voltage of triode T and light emitting diode D2, the triode T conductings, electric current warp
Light emitting diode D2, the light emitting diode D2 conductings, the light emitting diode D2 are flowed through by the resistance R3 and triode T
Green light indicates that DC-voltage supply is normal.The light emitting diode D1 can not flow through light-emitting diodes by triode T short circuits, electric current
Pipe D1, the light emitting diode D1 cut-offs, the light emitting diode D1 do not shine.
When being supplied to the DC-voltage supply deficiency of the actuator 40, the triode T cut-offs, electric current can not flow through
Light emitting diode D2, the light emitting diode D2 cut-offs, the light emitting diode D2 do not shine.Electric current is via the resistance R3
Light emitting diode D1 is flowed through, the light emitting diode D1 conductings, the light emitting diode D1, which glows, indicates DC-voltage supply
It is abnormal.
The utility model electric toothbrush undervoltage warning circuit is when the DC-voltage supply deficiency for being supplied to the actuator 40
When, the triode T cut-offs, electric current can not flow through light emitting diode D2, the light emitting diode D2 cut-offs, the light-emitting diodes
Pipe D2 does not shine.Electric current flows through light emitting diode D1 via the resistance R3, and the light emitting diode D1 conductings are described to shine
Diode D1, which glows, indicates that DC-voltage supply is abnormal.
Embodiment of above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, although with reference to above preferably real
Mode is applied the utility model is described in detail, it will be understood by those of ordinary skill in the art that, it can be new to this practicality
The technical solution of type is modified or equivalent replacement should not all be detached from the spirit and scope of technical solutions of the utility model.
Claims (6)
1. a kind of electric toothbrush undervoltage warning circuit, including a switch unit and an indicating unit, which is characterized in that the switch
Unit includes a triode and a first resistor, and the indicating unit includes one first diode and one second diode, described
The base stage of triode receives a DC voltage, the base earth of the triode, the current collection of the triode via first resistor
Pole receives the DC voltage, and the collector of the triode is electrically connected the anode of first diode, the triode
Emitter be electrically connected first diode cathode and the second diode anode, the cathode of second diode connects
Ground.
2. electric toothbrush undervoltage warning circuit as described in claim 1, which is characterized in that the base stage of the triode is via one
Second resistance is grounded.
3. electric toothbrush undervoltage warning circuit as described in claim 1, which is characterized in that the collector of the triode via
One 3rd resistor receives the DC voltage.
4. electric toothbrush undervoltage warning circuit as described in claim 1, which is characterized in that the triode is a NPN type three
Pole pipe.
5. electric toothbrush undervoltage warning circuit as described in claim 1, which is characterized in that first diode and the two or two
Pole pipe is the light emitting diode of different colours.
6. electric toothbrush undervoltage warning circuit as described in claim 1, which is characterized in that the electric toothbrush includes a shell
Body, a head toothbrushes, the holder being removably installed in the shell, an actuator, be electrically connected at the actuator and
A circuit board, a waterproof jacket and a proof mechanism of water, the actuator between undervoltage warning circuit are detachably arranged at the branch
Frame, the undervoltage warning circuit are set on the holder and power to the actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721546446.XU CN207866889U (en) | 2017-11-15 | 2017-11-15 | Electric toothbrush undervoltage warning circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721546446.XU CN207866889U (en) | 2017-11-15 | 2017-11-15 | Electric toothbrush undervoltage warning circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207866889U true CN207866889U (en) | 2018-09-14 |
Family
ID=63475586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721546446.XU Active CN207866889U (en) | 2017-11-15 | 2017-11-15 | Electric toothbrush undervoltage warning circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207866889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133566A (en) * | 2019-04-04 | 2019-08-16 | 国网山东省电力公司济宁供电公司 | A kind of intelligent electric energy meter RS485 communication interface automatic fault selftesting isolating device |
-
2017
- 2017-11-15 CN CN201721546446.XU patent/CN207866889U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133566A (en) * | 2019-04-04 | 2019-08-16 | 国网山东省电力公司济宁供电公司 | A kind of intelligent electric energy meter RS485 communication interface automatic fault selftesting isolating device |
| CN110133566B (en) * | 2019-04-04 | 2021-03-30 | 国网山东省电力公司济宁供电公司 | Intelligent electric energy meter RS485 communication interface fault self-detection isolating device |
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| GR01 | Patent grant |