CN106681178A - Intelligent power on/off control circuit and safe socket - Google Patents
Intelligent power on/off control circuit and safe socket Download PDFInfo
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- CN106681178A CN106681178A CN201510753832.5A CN201510753832A CN106681178A CN 106681178 A CN106681178 A CN 106681178A CN 201510753832 A CN201510753832 A CN 201510753832A CN 106681178 A CN106681178 A CN 106681178A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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Abstract
The invention provides an intelligent power on/off control circuit and a safe socket suitable for the field of power utilization safety protection. The intelligent power on/off control circuit comprises a step-down rectification module, an ultrasonic wave detection module, a level conversion module and an AC electronic switch, wherein the step-down rectification module carries out step-down rectification on input AC and outputs DC, the ultrasonic wave detection module outputs a high/low level signal according to whether a detection distance back fed by an ultrasonic wave detection signal, emitted by the ultrasonic wave detection module, is greater than a response threshold, the level conversion module converts the high/low level signal into a power on/off electric control signal, and the AC electronic switch realizes connection/disconnection according to the power on/off electric control signal. According to the system, the distance between the human body and the intelligent power on/off control circuit according to the ultrasonic wave detection signal emitted by the ultrasonic wave detection module, an intelligent power on/off control of an AC power supply is realized according to whether the backfed detection distance is greater than the response threshold, so that the human body is avoided from direct contact with the AC power supply effectively, damage of current on the human body is eliminated thoroughly, and the power utilization safety is ensured.
Description
Technical field
The invention belongs to Electrical Safety protection field, more particularly to a kind of intelligently connecting or disconnecting electric control circuit and safety
Socket.
Background technology
With the development and progress of science and technology, the life of people is increasingly modernized, various aspects people's day
Often production and the electric equipment products lived emerge in an endless stream.
However, these electric equipment products bring good days experience while will also result in it is certain
Electrical Safety hidden danger, especially by the electric equipment products that the high-voltage ac powers such as civil power or commercial power are powered,
Due to improper use or negligence user would generally be caused to get an electric shock, be caused casualties.Current city
The earth leakage circuit-breaker used on face, is using promoting protection switch, nothing by the leakage current of human body
Method eradicates the injury to human body.
The content of the invention
It is an object of the invention to provide a kind of intelligently connecting or disconnecting electric control circuit and safety socket, it is intended to solve mesh
The front earth leakage circuit-breaker for being used on the market, is to promote protection switch using by the leakage current of human body,
The problem of the injury to human body cannot be eradicated.
The present invention is achieved in that a kind of intelligently connecting or disconnecting electric control circuit, the live wire and zero with AC power
Line connection, for electricity consumption load supplying, the intelligently connecting or disconnecting electric control circuit includes：
First input end connects the live wire, the second input termination zero line, and the alternating current to being input into drops
Repoussage stream simultaneously exports galvanic step-down rectifier module by its DC output end；
Power supply terminates the DC output end, the ground connection termination zero line, according to the ultrasound examination that it is launched
Whether the detecting distance that signal is fed back is more than response lag to control its high/low level of level output end output
The ultrasound examination module of signal；
The input termination level output end, power supply terminate the DC output end, by the high/low level
The level switch module that signal is converted into on/off electric control signal and is exported by its control end；
The input termination live wire, output termination electricity consumption load, the control of the control termination level switch module
End processed, according to the on/off electric control signal, to realize the electronic AC switch of conduction and cut-off.
Preferably, the step-down rectifier module includes loop resistance R1, decompression capacitor C1, commutation diode
D1, voltage-stabiliser tube D2 and filter capacitor C2, wherein, one end of decompression capacitor C1 is the step-down rectifier
The negative pole of the first input end, the positive pole of the other end and commutation diode D1 and voltage-stabiliser tube D2 of module connects altogether,
The negative pole of commutation diode D1 connects altogether the direct current for constituting the step-down rectifier module with the positive pole of filter capacitor C2
Output end, the positive pole of voltage-stabiliser tube D2 connects altogether with the negative pole of filter capacitor C2 and constitutes the step-down rectifier module
Second input, loop resistance R1 is connected in parallel on the two ends of decompression capacitor C1.
Preferably, the ultrasound examination module is ultrasound chip, the ultrasonic testing signals of its transmitting
Frequency range is 13MHZ～40MHZ, and response lag is 25mm～75mm.
Preferably, the level switch module includes NPN type triode Q1, PNP type triode Q2, partially
Resistance R2 and biasing resistor R3 is put, wherein, the base stage of triode Q1 connects one end of biasing resistor R2, collection
Electrode is the base that the power end of the level switch module, colelctor electrode also Jing biasing resistors R3 meets triode Q2
Pole, the other end of biasing resistor R2 is the input of the level switch module, the emitter stage of triode Q2
For the control end of the level switch module, the emitter stage of triode Q1 and the colelctor electrode of triode Q2 connect altogether
Constitute the output end of the level switch module.
Preferably, the level switch module also includes clamp capacitor C3 and load resistance R4, wherein, pincers
One end and the power end of the DC output end and the ultrasound examination module of position electric capacity C3 connect altogether, separately
The colelctor electrode of one termination triode Q1, load resistance R4 mono- terminates the DC output end, the other end and three
The control end of the emitter stage of pole pipe Q2 and the electronic AC switch connects altogether.
Preferably, the intelligently connecting or disconnecting electric control circuit also includes being connected to the control of the level switch module
End, the filtration module between the control end of the electronic AC switch and the zero line.
Preferably, the filtration module includes resistance R5 and electric capacity C4, wherein, resistance R5 one end and institute
The control end of the control end and the electronic AC switch of stating level switch module connects altogether, another termination described zero
Line, electric capacity C4 is connected in parallel on resistance R5 two ends.
Preferably, the electronic AC switch be bidirectional triode thyristor D3, its first anode, second plate and control
Pole processed corresponds to respectively input, output end and the control end of the electronic AC switch.
Preferably, the intelligently connecting or disconnecting electric control circuit also includes the fuse being connected on the live wire.
The present invention also provides a kind of safety socket, used as with the connector between electric loading and AC power, institute
State the intelligently connecting or disconnecting electric control circuit that safety socket includes as described in front any one.
Compared with prior art, beneficial effect is the present invention：
The ultrasonic testing signals launched by ultrasound examination module are detecting human body with the intelligently connecting or disconnecting
The distance between electric control circuit, and whether response lag is more than according to the detecting distance of feedback, to exchange
Electronic switch carries out conduction and cut-off control, so as to realize the intelligently connecting or disconnecting electric control to AC power, Ke Yiyou
Effect avoids the directly contact of human body and AC power, has thoroughly eradicated injury of the electric current to human body, it is ensured that use
Electric safety；By in AC power and ultrasound examination module, level switch module and electronic AC switch
Between arrange step-down rectifier module, for carrying out step-down rectifier to AC power, be ultrasound examination module,
Level switch module and electronic AC switch provide galvanic current, to ensure the normal operation of circuit,
Improve the stability of circuit；Detect human body apart from intelligently connecting or disconnecting electric control circuit by ultrasound examination module
Distance, be quick on the draw, accuracy of detection it is high, the sensitive of the intelligently connecting or disconnecting electric control circuit can be effectively improved
Degree, so as to effective guarantee Electrical Safety；The break-make to AC power is realized by AC. electronic switching module
Electric control, it is with low cost and be quick on the draw；By arranging filtration module and clamp capacitor C3, can effectively filter out
Interference noise in circuit；Biasing resistor R2, biasing resistor R3 and load resistance R4 are used to prevent from being added in
Signal source overload on triode Q1 and triode Q2, it is ensured that its stability；Protected by the series connection on live wire
Dangerous silk, can when circuital current is excessive auto power off, it is ensured that circuit safety.
Description of the drawings
Fig. 1 is the basic structure block diagram of intelligently connecting or disconnecting electric control circuit provided in an embodiment of the present invention；
Fig. 2 is the circuit theory diagrams of the intelligently connecting or disconnecting electric control circuit that the preferred embodiments of the present invention are provided.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with accompanying drawing and reality
Example is applied, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
Only to explain the present invention, it is not intended to limit the present invention.
Fig. 1 is the basic structure block diagram of intelligently connecting or disconnecting electric control circuit provided in an embodiment of the present invention.
As shown in figure 1, intelligently connecting or disconnecting electric control circuit 100 provided in an embodiment of the present invention, with AC power
200 live wire L and zero line N connection, for electricity consumption load supplying 300, intelligently connecting or disconnecting electric control circuit 100
Including step-down rectifier module 10, ultrasound examination module 20, level switch module 30 and electronic AC switch
40。
The power frequency that AC power 200 refers to voltage for 110V/220V/380V, frequency for 50HZ/60HZ is handed over
Stream electricity.The industrial-frequency alternating current that preferred voltage is 220V in the present embodiment, frequency is 50HZ.
The first input end of step-down rectifier module 10 start to exchange fire line L, second input terminal connecting zero line N, to input
Alternating current carries out rectification and is depressured and exports direct current by its DC output end.
DC output end, the ground connection termination of the power supply termination step-down rectifier module 10 of ultrasound examination module 20
Zero line N, level output end connect the input of level switch module 30, according to the ultrasound examination letter that it is launched
Whether number detecting distance for being fed back exports high/low level letter controlling its level output end more than response lag
Number.
In a particular application, the frequency range of the ultrasonic testing signals of the transmitting of ultrasound examination module 20 is
13MHZ～40MHZ, response lag is 25mm～75mm.In the present embodiment, preferably flat rate scope is
27MHZ, response lag is the ultrasound chip of 50mm.
Level output end, the power supply termination of the input termination ultrasound examination module 20 of level switch module 30
The DC output end of step-down rectifier module 10, output terminal connecting zero line N, control termination electronic AC switch 40
Control end, the high/low level signal that the level output end of ultrasound examination module 20 is exported is converted into
On/off electric control signal is simultaneously exported by its control end.
The input of electronic AC switch 40 is started to exchange fire line L, output termination electricity consumption load 300, control end and drop
The DC output end of repoussage flow module 10 and the control end of level switch module 30 connect altogether, to be turned according to level
The on/off electric control signal of the control end output of mold changing block 30, realizes conduction and cut-off.
When ultrasound examination module 20 detects human body apart from intelligently connecting or disconnecting electric control circuit 100 apart from ＞
During 50mm, the level output end output high level signal of ultrasound examination module 20 makes level switch module
30 control end output power control signal, so that electronic AC switch 40 is turned on, and then makes alternating current
The live wire L in source 200 with connected with electric loading 300, be powered using electric loading 300；
When ultrasound examination module 20 detect human body apart from intelligently connecting or disconnecting electric control circuit 100 distance≤
During 50mm, level output end output low level (0 level) signal of ultrasound examination module 20 makes electricity
The control end output power down control signal of flat modular converter 30, so that electronic AC switch 40 ends, enters
And make the live wire L of AC power 200 and disconnected with electric loading 300, using the power-off of electric loading 300.
Fig. 2 is the circuit theory diagrams of the intelligently connecting or disconnecting electric control circuit that the preferred embodiments of the present invention are provided.
As shown in Fig. 2 in the intelligently connecting or disconnecting electric control circuit 100 that the preferred embodiments of the present invention are provided,
Step-down rectifier module 10 includes loop resistance R1, decompression capacitor C1, commutation diode D1, voltage-stabiliser tube D2
And filter capacitor C2, wherein, one end of decompression capacitor C1 is input into for the first of step-down rectifier module 10
End, the other end and the positive pole of commutation diode D1 and the negative pole of voltage-stabiliser tube D2 connect altogether, commutation diode
The negative pole of D1 connects altogether the DC output end for constituting step-down rectifier module 10 with the positive pole of filter capacitor C2, surely
The positive pole of pressure pipe D2 connects altogether the second input for constituting step-down rectifier module 10 with the negative pole of filter capacitor C2,
Loop resistance R1 is connected in parallel on the two ends of decompression capacitor C1.
In the preferred embodiment, the DC output end output of step-down rectifier module 10 is that voltage is 6V
Direct current, the parameter of loop resistance R1 is 1206 encapsulation, nominal resistance 470K Ω, rated voltage 1KV；
The parameter of decompression capacitor C1 is rated capacitance 0.47uF, rated voltage 400V；The ginseng of filter capacitor C2
Number is rated capacitance 200uF, rated voltage 16V.
Ultrasound examination module 20 is ultrasound chip U1, including power pins VDD, output pin OUT
With grounding pin GND, power end, level output end and the ground connection of ultrasound examination module 20 are corresponded to respectively
End.
As shown in Fig. 2 in the preferred embodiment, level switch module 30 include NPN type triode Q1,
PNP type triode Q2, biasing resistor R2 and biasing resistor R3, wherein, the base stage of triode Q1 connects partially
Put one end, the current collection extremely power end of level switch module 30, the colelctor electrode also Jing biasing resistors of resistance R2
R3 connects the base stage of triode Q2, and the other end of biasing resistor R2 is the input of level switch module 30,
The control end of the transmitting extremely level switch module 30 of triode Q2, the emitter stage of triode Q1 and three poles
The colelctor electrode of pipe Q2 connects altogether the output end for constituting level switch module 30.
In the preferred embodiment, triode Q1 and triode Q2 are STO23 types encapsulation triode,
Biasing resistor R2 and biasing resistor R3 are 0603 type packaged resistance.
As shown in Fig. 2 in the preferred embodiment, level switch module 30 also include clamp capacitor C3 and
Load resistance R4, wherein, one end of clamp capacitor C3 and the DC output end of step-down rectifier module 10 and
The power end of ultrasound examination module 20 connects altogether, the colelctor electrode of another termination triode Q1, load resistance
R4 mono- terminates DC output end, the emitter stage of the other end and triode Q2 and the friendship of step-down rectifier module 10
The control end of stream electronic switch 40 connects altogether.
In the preferred embodiment, the parameter of clamp capacitor C3 be rated capacitance 47uF, rated voltage 16V,
The parameter of load resistance R4 is 0603 encapsulation, nominal resistance 3K Ω.
As shown in Fig. 2 in the preferred embodiment, intelligently connecting or disconnecting electric control circuit 100 also includes being connected to
The control end of level switch module 30, the filtering between the control end of electronic AC switch 40 and zero line N
Module 50.
Filtration module 50 includes resistance R5 and electric capacity C4, wherein, resistance R5 one end and level switch module
30 control end and the control end of electronic AC switch 40 connect altogether, another terminal connecting zero line N, and electric capacity C4 is in parallel
At resistance R5 two ends.
In the preferred embodiment, the rated capacitance of electric capacity C4 be 0.01uF, the parameter of divider resistance R5
For 0603 encapsulation, nominal resistance 1K Ω.
As shown in Fig. 2 in the preferred embodiment, electronic AC switch 40 is bidirectional triode thyristor D3, its
The first anode, second plate and control pole correspond to respectively input, output end and the control of electronic AC switch 40
End processed.
Intelligently connecting or disconnecting electric control circuit 100 also includes the fuse F1 being connected on live wire L.It is preferred real at this
In applying example, the parameter of fuse F1 is rated voltage 250V, rated current 5A.
Based on above-mentioned intelligently connecting or disconnecting electric control circuit 100, the operation principle of the present invention is：
Alternating current is input into from live wire L and zero line N, and the current trend in circuit is：
(1) live wire L input currents Jing fuse F1 flow to decompression capacitor C1, commutation diode D1, filter
Ripple electric capacity C2 returns to zero line N；
(2) loop current Jing Zener diode D2, the decompression capacitor C1 or loop resistance R1 of zero line N,
Fuse F1 returns to live wire L；
(3) when electronic AC switch D3 is turned on, live wire L input current Jing fuse F1, alternating current
Son switchs the live wire of D3 flow direction electric loadings, and then the zero line of Jing electric loadings returns to zero line N；When two-way
Dead end when controllable silicon D3 ends, no current passes through.
Voltage reduction module output galvanic current trend be：
(1) DC output end output current, flows into the VDD pins of ultrasound examination chip U1, Jing OUT
Pin output, Jing GND pins return to zero line N (equivalent to ground connection), and when detecting, human body distance is intelligent
When the distance of control system of switching on or off electricity circuit 100 is more than response lag, OUT pins send high level signal, and Jing is inclined
Put the base stage that resistance R2 flows to NPN type triode Q1, the electric current also Jing clampers electricity of DC output end output
Hold the colelctor electrode that C3 flows into triode Q1, triode Q1 conductings, the emitter stage of electric current Jing triode Q1
Zero line is returned to, now the collector current of triode Q1 is very big, Jing biasing resistor R3 flow to positive-negative-positive three
The base stage of pole pipe Q2, it is corresponding to cause the base voltage of triode Q2 (to be equal to biasing resistor R3's very greatly
Voltage)；At the same time, DC output end output current, Jing load resistance R4 flow to sending out for triode Q2
Emitter-base bandgap grading, now the base voltage of triode Q2 is more than its emitter voltage, triode Q2 cut-offs so that Jing
Load resistance R4 flows to the control pole of the current direction bidirectional triode thyristor D3 of the emitter stage of triode Q2, makes
Its two-way admittance, so that the alternating current on live wire L can be flowed to uses electric loading；
(2) DC output end output current, flows into the VDD pins of ultrasound examination chip U1, Jing OUT
Pin output, Jing GND pins return to zero line N (equivalent to ground connection), and when detecting, human body distance is intelligent
When the distance of control system of switching on or off electricity circuit 100 is less than or equal to response lag, OUT pins send low level (0
Level) signal, end triode Q1, it is corresponding so that the base voltage of triode Q2 (is for low level
0 level)；At the same time, DC output end output current, Jing load resistance R4 flow to triode Q2's
Emitter stage, now the base voltage of triode Q2 is less than its emitter voltage, triode Q2 conductings so that
Jing load resistance R4 flow to the electric current Jing of the emitter stage of triode Q2 its colelctor electrode and return to zero line N, make two-way
The control of controllable silicon D3 extremely 0 level, two-way stop, so that the alternating current on live wire L can not flow
To with electric loading.
The embodiment of the present invention also provides a kind of safety socket, used as with the connection between electric loading and AC power
Part, including the intelligently connecting or disconnecting electric control circuit 100.
Presently preferred embodiments of the present invention is the foregoing is only, it is all at this not to limit the present invention
Any modification, equivalent and improvement made within bright spirit and principle etc., should be included in the present invention
Protection domain within.
Claims (10)
1. a kind of intelligently connecting or disconnecting electric control circuit, is connected with the live wire and zero line of AC power, is to use electric loading
Power supply, it is characterised in that the intelligently connecting or disconnecting electric control circuit includes：
First input end connects the live wire, the second input termination zero line, and the alternating current to being input into drops
Repoussage stream simultaneously exports galvanic step-down rectifier module by its DC output end；
Power supply terminates the DC output end, the ground connection termination zero line, according to the ultrasound examination that it is launched
Whether the detecting distance that signal is fed back is more than response lag to control its high/low level of level output end output
The ultrasound examination module of signal；
The input termination level output end, power supply terminate the DC output end, the output termination zero line,
So that the level that the high/low level signal is converted into on/off electric control signal and is exported by its control end to be turned
Mold changing block；
The input termination live wire, output termination electricity consumption load, the control of the control termination level switch module
End processed, according to the on/off electric control signal, to realize the electronic AC switch of conduction and cut-off.
2. intelligently connecting or disconnecting electric control circuit as claimed in claim 1, it is characterised in that the step-down rectifier
Module includes loop resistance R1, decompression capacitor C1, commutation diode D1, voltage-stabiliser tube D2 and filtered electrical
Hold C2, wherein, one end of decompression capacitor C1 is first input end, the other end of the step-down rectifier module
Connect altogether with the positive pole of commutation diode D1 and the negative pole of voltage-stabiliser tube D2, the negative pole of commutation diode D1 with
The positive pole of filter capacitor C2 connects altogether the DC output end for constituting the step-down rectifier module, and voltage-stabiliser tube D2 is just
Pole connects altogether the second input for constituting the step-down rectifier module, loop resistance with the negative pole of filter capacitor C2
R1 is connected in parallel on the two ends of decompression capacitor C1.
3. intelligently connecting or disconnecting electric control circuit as claimed in claim 1, it is characterised in that the ultrasonic wave inspection
Survey module is ultrasound chip, and the frequency range of the ultrasonic testing signals of its transmitting is 13MHZ～40MHZ,
Response lag is 25mm～75mm.
4. intelligently connecting or disconnecting electric control circuit as claimed in claim 1, it is characterised in that the level conversion
Module includes NPN type triode Q1, PNP type triode Q2, biasing resistor R2 and biasing resistor R3,
Wherein, the base stage of triode Q1 connects the extremely described level switch module of one end of biasing resistor R2, current collection
Power end, colelctor electrode also Jing biasing resistors R3 connects the base stage of triode Q2, the other end of biasing resistor R2
For the input of the level switch module, the control of the extremely described level switch module of transmitting of triode Q2
End processed, the emitter stage of triode Q1 and the colelctor electrode of triode Q2 connect constitute the level switch module altogether
Output end.
5. intelligently connecting or disconnecting electric control circuit as claimed in claim 4, it is characterised in that the level conversion
Module also includes clamp capacitor C3 and load resistance R4, wherein, one end of clamp capacitor C3 is straight with described
The power end of stream output end and the ultrasound examination module connects altogether, the colelctor electrode of another termination triode Q1,
Load resistance R4 mono- terminates the DC output end, the other end and the emitter stage of triode Q2 and described exchanges
The control end of electronic switch connects altogether.
6. intelligently connecting or disconnecting electric control circuit as claimed in claim 1, it is characterised in that the intelligently connecting or disconnecting
Electric control circuit also includes being connected to control end, the control of the electronic AC switch of the level switch module
Filtration module between end processed and the zero line.
7. intelligently connecting or disconnecting electric control circuit as claimed in claim 6, it is characterised in that the filtration module
Including resistance R5 and electric capacity C4, wherein, the control end of resistance R5 one end and the level switch module and
The control end of the electronic AC switch connects altogether, another termination zero line, and electric capacity C4 is connected in parallel on resistance R5
Two ends.
8. intelligently connecting or disconnecting electric control circuit as claimed in claim 1, it is characterised in that the alternating electron
Switch as bidirectional triode thyristor D3, its first anode, second plate and control pole correspond to respectively the alternating electron
The input of switch, output end and control end.
9. intelligently connecting or disconnecting electric control circuit as claimed in claim 1, it is characterised in that the intelligently connecting or disconnecting
Electric control circuit also includes the fuse being connected on the live wire.
10. a kind of safety socket, as with the connector between electric loading and AC power, it is characterised in that
The safety socket includes the intelligently connecting or disconnecting electric control circuit as described in any one of claim 1～9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510753832.5A CN106681178A (en) | 2015-11-09 | 2015-11-09 | Intelligent power on/off control circuit and safe socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510753832.5A CN106681178A (en) | 2015-11-09 | 2015-11-09 | Intelligent power on/off control circuit and safe socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106681178A true CN106681178A (en) | 2017-05-17 |
Family
ID=58863940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510753832.5A Pending CN106681178A (en) | 2015-11-09 | 2015-11-09 | Intelligent power on/off control circuit and safe socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106681178A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110349395A (en) * | 2019-07-08 | 2019-10-18 | 河南理工大学 | Intelligence based on RSSI ranging can turn off total power switch system |
| CN113823964A (en) * | 2021-08-31 | 2021-12-21 | 珠海格力电器股份有限公司 | Socket protection circuit and socket |
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|---|---|---|---|---|
| EP2711092A1 (en) * | 2012-09-25 | 2014-03-26 | Adolf Würth GmbH & Co. KG | Transformer-free ultrasound generator for a handheld device |
| CN203553510U (en) * | 2013-08-27 | 2014-04-16 | 广东工业大学 | Multifunctional intelligent socket |
| CN103901829A (en) * | 2012-12-30 | 2014-07-02 | 青岛海尔软件有限公司 | Home intelligent power-saving socket based on Doppler sensing technology |
| CN104993322A (en) * | 2015-07-08 | 2015-10-21 | 杭州木梢科技有限公司 | Intelligent safe socket and safe power utilization method realized by same |
| CN205193482U (en) * | 2015-11-09 | 2016-04-27 | 许荣林 | Electrical shutoff control circuit and safe socket are led to to intelligence |
-
2015
- 2015-11-09 CN CN201510753832.5A patent/CN106681178A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2711092A1 (en) * | 2012-09-25 | 2014-03-26 | Adolf Würth GmbH & Co. KG | Transformer-free ultrasound generator for a handheld device |
| CN103901829A (en) * | 2012-12-30 | 2014-07-02 | 青岛海尔软件有限公司 | Home intelligent power-saving socket based on Doppler sensing technology |
| CN203553510U (en) * | 2013-08-27 | 2014-04-16 | 广东工业大学 | Multifunctional intelligent socket |
| CN104993322A (en) * | 2015-07-08 | 2015-10-21 | 杭州木梢科技有限公司 | Intelligent safe socket and safe power utilization method realized by same |
| CN205193482U (en) * | 2015-11-09 | 2016-04-27 | 许荣林 | Electrical shutoff control circuit and safe socket are led to to intelligence |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110349395A (en) * | 2019-07-08 | 2019-10-18 | 河南理工大学 | Intelligence based on RSSI ranging can turn off total power switch system |
| CN113823964A (en) * | 2021-08-31 | 2021-12-21 | 珠海格力电器股份有限公司 | Socket protection circuit and socket |
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Application publication date: 20170517 |