CN111628484A - Safe power utilization controller and circuit thereof - Google Patents
Safe power utilization controller and circuit thereof Download PDFInfo
- Publication number
- CN111628484A CN111628484A CN202010499214.3A CN202010499214A CN111628484A CN 111628484 A CN111628484 A CN 111628484A CN 202010499214 A CN202010499214 A CN 202010499214A CN 111628484 A CN111628484 A CN 111628484A
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- 230000003287 optical effect Effects 0.000 claims abstract description 35
- 230000003321 amplification Effects 0.000 claims abstract description 7
- 230000008878 coupling Effects 0.000 claims abstract description 7
- 238000010168 coupling process Methods 0.000 claims abstract description 7
- 238000005859 coupling reaction Methods 0.000 claims abstract description 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 6
- 239000010703 silicon Substances 0.000 claims abstract description 6
- 239000003990 capacitor Substances 0.000 claims description 112
- 230000009977 dual effect Effects 0.000 claims description 14
- 238000002791 soaking Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000004020 conductor Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 101710179738 6,7-dimethyl-8-ribityllumazine synthase 1 Proteins 0.000 description 1
- 101710186608 Lipoyl synthase 1 Proteins 0.000 description 1
- 101710137584 Lipoyl synthase 1, chloroplastic Proteins 0.000 description 1
- 101710090391 Lipoyl synthase 1, mitochondrial Proteins 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/1203—Circuits independent of the type of conversion
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
- H02H11/002—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of inverted polarity or connection; with switching for obtaining correct connection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a safe power utilization controller and a circuit thereof, and the safe power utilization controller comprises a controller shell, wherein the side part of the controller shell is provided with a plurality of wire inlet holes, and a control circuit board, a plurality of silicon controlled rectifiers and a plurality of wiring terminals are arranged in the controller shell; the control circuit board is provided with a power management circuit, an optical coupling circuit, an electric polarity reverse phase circuit, a time base circuit, a double-voltage comparison circuit and a power amplification circuit; the invention has the advantages of high reliability and high safety, and can effectively ensure that the power supply is used under the severe conditions of soaking and the like, so the invention can be widely applied to the field of power electronics.
Description
Technical Field
The invention relates to the field of power electronics, in particular to a safe power utilization controller and a circuit thereof.
Background
The traditional power supply is usually in the air with too high water content, even under the condition of being completely immersed in water, the fault of electric leakage is often generated, and further great potential safety hazard is brought to electric equipment and users; the existing waterproof power supply mainly adopts a design of sealing and waterproofing a power supply shell, but the waterproof effect of the device is poor after the device is aged, and the power supply is difficult to safely work under the condition of complete water immersion; therefore, through improvement on a circuit and a structure, the safe power utilization controller capable of being used in a water inlet environment and the circuit thereof are of great practical significance.
Disclosure of Invention
In order to solve the technical problems, the invention discloses a safe power utilization controller and a circuit thereof, wherein the safe power utilization controller comprises a controller shell, a plurality of wire inlet holes are formed in the side part of the controller shell, and a control circuit board, a plurality of silicon controlled rectifiers and a plurality of wiring terminals are arranged in the controller shell; the control circuit board is provided with a power management circuit, an optical coupling circuit, an electric polarity reverse phase circuit, a time base circuit, a double-voltage comparison circuit and a power amplification circuit.
Further, the power management circuit comprises a power module DB2 and a capacitor C3, wherein the power module DB2 is electrically connected with the capacitor C3.
Further, the optical coupling circuit comprises an optical coupler O1, an optical coupler O2, an optical coupler O3, an optical coupler O4, a triode Q3 and a triode Q5, the optical coupler O1 and the optical coupler O2 are respectively and electrically connected with a collector of the triode Q5, the optical coupler O3 and the optical coupler O4 are respectively and electrically connected with a collector of the triode Q3, and an emitter of the triode Q3 and an emitter of the triode Q5 are both electrically connected with the ground level.
Furthermore, the electric polarity inverting circuit comprises an inverter U4, a capacitor C2, a capacitor C3, a capacitor C4 and a diode D13, two ends of the capacitor C4 are electrically connected with the inverter U4 respectively, and cathodes of the capacitor C2, the capacitor C3 and the diode D13 are electrically connected with the inverter U4.
Further, the time base circuit includes a time base chip U3, a diode D5, a diode D6, a diode D10, a diode D11, a diode D12, a capacitor C5, and a capacitor C6, a cathode of the diode D5, a cathode of the diode D6, a cathode of the diode D10, a cathode of the diode D11, and an anode of the diode D12 are all electrically connected to the time base chip U3, two ends of the capacitor C5 are electrically connected to a cathode of the diode D5 and the time base chip U3, respectively, and the capacitor C6 is electrically connected to the time base chip U3.
Further, the dual-voltage comparison circuit comprises a dual-voltage comparator U1, a triode Q4, a capacitor C9, a capacitor C10 and a capacitor C11, wherein the base of the triode Q4, the capacitor C9, the capacitor C10 and the capacitor C11 are all electrically connected with the dual-voltage comparator U1.
Further, the power amplification circuit comprises a dual operational amplifier U5, an amplifier U6, a diode D7, a capacitor C7, a capacitor C12, a capacitor C13, a capacitor C14, a capacitor C15, a capacitor C16 and a capacitor C18, wherein the capacitor C18, the capacitor C16, the capacitor C15 and the capacitor C14 are all electrically connected with the amplifier U6, cathodes of the capacitor C7, the capacitor C12 and the diode D7 are all electrically connected with the dual operational amplifier U5, and the capacitor C12, the capacitor C13 and the capacitor C14 are electrically connected in parallel.
By adopting the technical scheme, the invention has the following advantages:
(1) the reliability is high, and the power supply conduction condition of the whole device is controlled by controlling the silicon controlled rectifier through the control circuit board;
(2) the safety is high, and this device is after being connected with the power electricity, through control circuit board automatic control whole device after the power soaks to avoid electric leakage/electrocute, short-circuit protection, overcurrent overload protection, excessive pressure/undervoltage protection.
Drawings
FIG. 1 is a schematic diagram of the internal structure of an embodiment of the present invention;
FIG. 2 is a schematic diagram of the connection of the thyristor and the terminal according to the embodiment of the invention;
FIG. 3 is a schematic diagram of a power management circuit of the control circuit board according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an opto-coupler circuit of a control circuit board according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an electrical polarity inverting circuit of the control circuit board according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a time base circuit of the control circuit board according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a dual voltage comparison circuit of the control circuit board according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a power amplifier circuit of the control circuit board according to an embodiment of the invention;
as shown in the figure:
1-wire inlet hole, 2-wiring terminal, 3-controllable silicon, 4-controller shell and 5-control circuit board.
Detailed Description
The present invention will be described in further detail with reference to the following examples, but it should be noted that the numbers, scientific terms, processing methods and the like in the following examples are only used for better describing and explaining the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is not limited thereto.
As shown in fig. 1 to 8, the safe power utilization controller and the circuit thereof comprise a controller shell 4, wherein a plurality of wire inlet holes 1 are formed in the side part of the controller shell 4, and a control circuit board 5, a plurality of controllable silicon 3 and a plurality of wiring terminals 2 are arranged in the controller shell 4; the control circuit board 5 is provided with a power management circuit, an MOC3083 optical coupling circuit, an electric polarity reverse phase circuit, a time base circuit, a double-voltage comparison circuit and a power amplification circuit;
in fig. 2, the thyristor 3 and the connection terminal 2 are connected in the form of a two-way input and a two-way output.
The power management circuit comprises an HLK-PM01-3W chip DB2 and an electrolytic capacitor C3;
the No. 1 pin and the No. 2 pin of the HLK-PM01-3W chip form an external interface CN1, the No. 3 pin of the HLK-PM01-3W chip is electrically connected with the ground level, the No. 4 pin of the HLK-PM01-3W chip is electrically connected with the +5V electrode, and two ends of the electrolytic capacitor EC3 are respectively electrically connected with the No. 3 pin and the No. 4 pin of the HLK-PM01-3W chip;
the power management circuit can be additionally provided with a power compensation module, the power compensation module comprises a capacitor C17, a capacitor C19 and a capacitor C20, the capacitor C17, the capacitor C19 and the capacitor C20 are electrically connected in parallel, and the vacant end of the capacitor C17, the vacant end of the capacitor C19 and the vacant end of the capacitor C20 are electrically connected with the ground level.
The optical coupling circuit comprises an MOC3083 optical coupler O1, an MOC3083 optical coupler O2, an MOC3083 optical coupler O3, an MOC3083 optical coupler O4, an NPN triode Q3 and an NPN triode Q5;
a pin No. 2 of an MOC3083 optocoupler O1 and a pin No. 2 of an MOC3083 optocoupler O2 are respectively and electrically connected with a collector of a triode Q5, a pin No. 2 of an MOC3083 optocoupler O3 and a pin No. 2 of an MOC3083 optocoupler O4 are respectively and electrically connected with a collector of a triode Q3, and an emitter of the triode Q3 and an emitter of the triode Q5 are both electrically connected with the ground level;
the No. 4 pin of the MOC3083 optical coupler O1 and the No. 4 pin of the MOC3083 optical coupler O4 form an external interface CN3, and the No. 6 pin of the MOC3083 optical coupler O1 is electrically connected with the No. 6 pin of the MOC3083 optical coupler O4;
the No. 4 pin of the MOC3083 optical coupler O2 and the No. 4 pin of the MOC3083 optical coupler O3 form an external interface CN2, and the No. 6 pin of the MOC3083 optical coupler O2 is electrically connected with the No. 6 pin of the MOC3083 optical coupler O3;
the electric polarity inverting circuit comprises a 7660 inverter U4, an electrolytic capacitor C2, an electrolytic capacitor C3, a capacitor C4 and a diode D13;
the two ends of the capacitor C4 are respectively and electrically connected with No. 2 pin and No. 4 pin of 7660 inverter U4, the cathodes of the capacitor C2, the capacitor C3 and the diode D13 are respectively and electrically connected with 7660 inverter U4, and the anode of the diode D13 is electrically connected with a +5V electrode.
The time base circuit comprises an NE555 time base chip U3, a diode D5, a diode D6, a diode D10, a diode D11, a diode D12, a capacitor C5 and a capacitor C6;
the cathode of the diode D5 is electrically connected with pin No. 8 of the NE555 time-base chip U3, the cathode of the diode D6 is electrically connected with pin No. 5 of the NE555 time-base chip U3, the cathode of the diode D10 is electrically connected with the cathode of the diode D5, pin No. 2 and pin No. 4 of the NE555 time-base chip U3, the cathode of the diode D11 is electrically connected with pin No. 3 of the NE555 time-base chip U3, the anode of the diode D12 is electrically connected with pin No. 3 of the NE555 time-base chip U3, two ends of the capacitor C5 are electrically connected with the cathode of the diode D5 and pin No. 1 of the NE555 time-base chip U3, and the capacitor C6 is electrically connected with pin No. 6 and pin No. 7 of the NE 555.
The dual-voltage comparison circuit comprises an LM393 dual-voltage comparator U1, a triode Q4, a capacitor C9, a capacitor C10 and a capacitor C11;
the base electrode of the triode Q4 is electrically connected with a pin No. 1 of the LM393 double-voltage comparator U1, the emitter electrode of the triode Q4 is electrically connected with the ground level, two ends of the capacitor C9 are respectively electrically connected with a pin No. 2 of the LM393 double-voltage comparator U1 and the ground level, two ends of the capacitor C10 are respectively electrically connected with a pin No. 5 of the LM393 double-voltage comparator U1 and the ground level, and two ends of the capacitor C11 are respectively electrically connected with a pin No. 6 of the LM393 double-voltage comparator U1 and the ground level;
the No. 2 pin, +5V electrode and the ground level of LM393 dual voltage comparator U1 constitute external interface VR1, and the No. 6 pin, +5V electrode and the ground level of LM393 dual voltage comparator U1 constitute external interface VR 2.
The power supply amplification circuit comprises an LM358 dual operational amplifier U5, an AD620 amplifier U6, a diode D7, a capacitor C7, a capacitor C12, a capacitor C13, a capacitor C14, a capacitor C15, a capacitor C16 and an electrolytic capacitor C18;
one end of an electrolytic capacitor C18 is electrically connected with a No. 2 pin of an AD620 amplifier U6, two ends of a capacitor C16 are electrically connected with a No. 2 pin and a No. 3 pin of an AD620 amplifier U6 respectively, a No. 6 pin of a capacitor C15AD620 amplifier U6 is electrically connected, a No. 6 pin of a capacitor C14AD620 amplifier U6 is electrically connected, two ends of a capacitor C7 are electrically connected with a No. 1 pin and a No. 2 pin of an LM358 dual operational amplifier U5 respectively, a capacitor C12 is electrically connected with a No. 3 pin of an LM358 dual operational amplifier U5, a negative pole LM358 dual operational amplifier U5 of a diode D7 is electrically connected with a No. 7 pin, and the capacitor C12, the capacitor C13 and the capacitor C14 are electrically;
the other end of the motor capacitor C18 and the No. 3 pin of the AD620 amplifier U6 form an external interface LS 1.
In order to improve the working efficiency and reliability of the system, a CD4069UBE inverter U2 can be additionally arranged, a No. 2 pin and a No. 3 pin of the CD4069UBE inverter U2 are electrically connected, a No. 14 pin is connected with a +5V motor, and a No. 7 pin is connected with a ground electrode.
When the invention is used, a user of the wiring terminal 3 can define the wiring terminal according to the use requirement, and the wiring terminal 3 is divided into an input terminal and an output terminal;
the terminal polarity fixing portion is provided between the input terminal portion and the output terminal portion, and the first output terminal L and the second output terminal N are always electrically connected to the neutral point terminal and the phase voltage terminal, respectively, regardless of how the socket of the input terminal to the AC power supply is paired at the phase voltage terminal and the neutral point terminal;
the first connection terminal L and the second connection terminal N of the wiring board connect the first output terminal L and the second output terminal N to a load;
the leakage-preventing conductor is connected to the first connection terminal L connected to the neutral point, but not to the second connection terminal N, and is provided around the second connection terminal N, surrounding at least a part of the side surface and/or at least a part of the top portion of the wiring board, or surrounding at least a part of the side surface and at least a part of the top portion;
the absorption and shielding effect of the electric field is obtained by using the conductor connected with the outside, generally, the potential of the conductor should be regarded as "0", if the positive charge of the periphery is dominant, the conductor itself is negative charge, and if the positive charge of the periphery is negative, the conductor is oppositely charged, and if the point charge on the left is negative, the arrow direction of the electric field line is also opposite;
the electric field attraction effect according to the above content is that the outer conductor sphere maintains the potential "0", and charges with the opposite charge to the inner sphere, and then generates the offset effect, so the leakage and electric shock accidents are generated outside the outer sphere, the leakage prevention device does not leak the current into the water when the water is soaked, and the current is absorbed again like the black hole phenomenon;
when the wiring board is flooded with water, the current from the second connection terminal flows into the leakage preventing electrical conductor by water, and does not flow to other locations enough to cause an electric shock.
The above are embodiments of the present invention, and any changes and substitutions without inventive step in the claims of the present invention are within the scope of the present invention.
Claims (7)
1. The safe power utilization controller and the circuit thereof are characterized by comprising a controller shell, wherein the side part of the controller shell is provided with a plurality of wire inlet holes, and a control circuit board, a plurality of silicon controlled rectifiers and a plurality of wiring terminals are arranged inside the controller shell; the control circuit board is provided with a power management circuit, an optical coupling circuit, an electric polarity reverse phase circuit, a time base circuit, a double-voltage comparison circuit and a power amplification circuit.
2. The safety power utilization controller and the circuit thereof according to claim 1, wherein the power management circuit comprises a power module DB2 and a capacitor C3, and the power module DB2 is electrically connected with the capacitor C3.
3. The safety power controller and the circuit thereof as claimed in claim 1, wherein the optical coupling circuit comprises an optical coupler O1, an optical coupler O2, an optical coupler O3, an optical coupler O4, a transistor Q3 and a transistor Q5, the optical coupler O1 and the optical coupler O2 are electrically connected with a collector of the transistor Q5, the optical coupler O3 and the optical coupler O4 are electrically connected with a collector of the transistor Q3, and an emitter of the transistor Q3 and an emitter of the transistor Q5 are electrically connected with ground.
4. The safety electric controller and the circuit thereof according to claim 1, wherein the electric polarity inverting circuit comprises an inverter U4, a capacitor C2, a capacitor C3, a capacitor C4 and a diode D13, two ends of the capacitor C4 are respectively electrically connected with the inverter U4, and cathodes of the capacitor C2, the capacitor C3 and the diode D13 are respectively electrically connected with the inverter U4.
5. The controller and its circuit according to claim 1, characterized in that the time base circuit includes a time base chip U3, a diode D5, a diode D6, a diode D10, a diode D11, a diode D12, a capacitor C5 and a capacitor C6, the cathode of the diode D5, the cathode of the diode D6, the cathode of the diode D10, the cathode of the diode D11 and the anode of the diode D12 are all electrically connected with the time base chip U3, the two ends of the capacitor C5 are respectively electrically connected with the cathode of the diode D5 and the time base chip U3, and the capacitor C6 is electrically connected with the time base chip U3.
6. The safety power controller and its circuit as claimed in claim 1, wherein the dual voltage comparison circuit includes a dual voltage comparator U1, a transistor Q4, a capacitor C9, a capacitor C10 and a capacitor C11, the base of the transistor Q4, the capacitor C9, the capacitor C10 and the capacitor C11 are all electrically connected to the dual voltage comparator U1.
7. The safety power consumption controller and the circuit thereof as claimed in claim 1, wherein the power amplification circuit includes a dual operational amplifier U5, an amplifier U6, a diode D7, a capacitor C7, a capacitor C12, a capacitor C13, a capacitor C14, a capacitor C15, a capacitor C16 and a capacitor C18, the capacitor C18, the capacitor C16, the capacitor C15 and the capacitor C14 are all electrically connected with the amplifier U6, cathodes of the capacitor C7, the capacitor C12 and the diode D7 are all electrically connected with the dual operational amplifier U5, and the capacitor C12, the capacitor C13 and the capacitor C14 are electrically connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010499214.3A CN111628484A (en) | 2020-06-04 | 2020-06-04 | Safe power utilization controller and circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010499214.3A CN111628484A (en) | 2020-06-04 | 2020-06-04 | Safe power utilization controller and circuit thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111628484A true CN111628484A (en) | 2020-09-04 |
Family
ID=72259541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010499214.3A Pending CN111628484A (en) | 2020-06-04 | 2020-06-04 | Safe power utilization controller and circuit thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111628484A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112242690A (en) * | 2020-10-30 | 2021-01-19 | 山东乾立光电科技有限公司 | Electric shock prevention device |
| CN112436341A (en) * | 2020-10-30 | 2021-03-02 | 山东乾立光电科技有限公司 | Electric shock prevention socket |
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| CN101257202A (en) * | 2007-12-21 | 2008-09-03 | 谢帮华 | Electricity-leakage-proof protectors |
| CN102097718A (en) * | 2011-03-08 | 2011-06-15 | 福州大学 | Human body safety socket |
| CN105356414A (en) * | 2014-08-20 | 2016-02-24 | 南京欧格节能科技有限公司 | Leakage protector for power grid |
| CN105977907A (en) * | 2016-01-08 | 2016-09-28 | 上海蕴原电器有限公司 | Power-saving grounding fault circuit breaker |
| CN206918782U (en) * | 2017-05-08 | 2018-01-23 | 浙江立地信息科技有限公司 | A kind of controller with water leakage detecting function |
| US20200067306A1 (en) * | 2018-08-21 | 2020-02-27 | Jianqing Liu | Safety electronic switch |
| CN212304727U (en) * | 2020-06-04 | 2021-01-05 | 王忠辉 | Controller with safety circuit |
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2020
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101257202A (en) * | 2007-12-21 | 2008-09-03 | 谢帮华 | Electricity-leakage-proof protectors |
| CN102097718A (en) * | 2011-03-08 | 2011-06-15 | 福州大学 | Human body safety socket |
| CN105356414A (en) * | 2014-08-20 | 2016-02-24 | 南京欧格节能科技有限公司 | Leakage protector for power grid |
| CN105977907A (en) * | 2016-01-08 | 2016-09-28 | 上海蕴原电器有限公司 | Power-saving grounding fault circuit breaker |
| CN206918782U (en) * | 2017-05-08 | 2018-01-23 | 浙江立地信息科技有限公司 | A kind of controller with water leakage detecting function |
| US20200067306A1 (en) * | 2018-08-21 | 2020-02-27 | Jianqing Liu | Safety electronic switch |
| CN212304727U (en) * | 2020-06-04 | 2021-01-05 | 王忠辉 | Controller with safety circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112242690A (en) * | 2020-10-30 | 2021-01-19 | 山东乾立光电科技有限公司 | Electric shock prevention device |
| CN112436341A (en) * | 2020-10-30 | 2021-03-02 | 山东乾立光电科技有限公司 | Electric shock prevention socket |
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