CN108075442A - Antioverloading protection type power outlet - Google Patents
Antioverloading protection type power outlet Download PDFInfo
- Publication number
- CN108075442A CN108075442A CN201611001437.2A CN201611001437A CN108075442A CN 108075442 A CN108075442 A CN 108075442A CN 201611001437 A CN201611001437 A CN 201611001437A CN 108075442 A CN108075442 A CN 108075442A
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- CN
- China
- Prior art keywords
- circuit
- power
- power outlet
- connection
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
Abstract
The present invention relates to a kind of antioverloading protection type power outlets; current detection circuit, control execution circuit and the working power circuit of the power outlet XS1 electric currents to power to the load are flowed through including detection; the current detection circuit that power outlet XS1 electric currents are flowed through in the detection uses Hall current sensor; when the electric current (i.e. load current) for flowing through power outlet XS1 is less than limit value, power outlet XS1 provides normal power supply to load；When the electric current for flowing through power outlet XS1 is more than limit value, execution circuit is controlled by the power supply for the socket XS1 that cuts off the power at once.The circuit theory of antioverloading protection type power outlet is as shown in Figure of abstract.
Description
Technical field
The present invention relates to electrical apparatus industry, especially a kind of antioverloading protection type power outlet.
Background technology
It is electric power application technology, various with science and technology and the development of national economy and the raising of living standards of the people
The fast developments such as electricity consumption product and various household electrical appliance, and power circuit patches electric appliance to electrical equipment offer electric energy --- electricity
Supply socket is quickly grown like the mushrooms after rain, and kind, specification and pattern a multitude of names emerge in an endless stream.However, due to power supply
Socket in use often because load current is excessive or the reasons such as load circuit is short-circuit and cause power outlet damage, electrical appliance
The accidents such as the secondary disaster that damage, power outlet and electrical appliance leak electricity, are on fire, personnel get an electric shock and trigger therefrom.
This patent introduces a kind of antioverloading protection type power outlet, when the electric current (i.e. load current) for flowing through power outlet is small
When limit value, power outlet provides normal power supply to load；When the electric current for flowing through power outlet is more than limit value, control
Execution circuit is by the power supply for socket of cutting off the power at once.It can be seen that the power outlet of this antioverloading protection type can be effective
Ground protection power source socket in itself, electrical appliance, circuit and personal safety.
The content of the invention
For overcome the deficiencies in the prior art, work as the technical problem to be solved in the present invention is to provide one kind and flow through to load confession
When the electric current of the power outlet XS1 of electricity is less than limit value, power outlet XS1 provides normal power source to load；When flowing through to load
When the electric current of the power outlet XS1 of power supply is more than limit value, control execution circuit is electric by the power supply for the socket XS1 that cuts off the power at once
Source.
The technical scheme is that：A kind of antioverloading protection type power outlet flows through what is powered to the load including detection
Current detection circuit, control execution circuit and the working power circuit of power outlet XS1 electric currents.
Further, the current detection circuit is the current sensor HE1 used using Hall element characteristic, and electric current is examined
Test coil is series in the current supply circuit of power outlet XS1, power end " VCC" connection working power positive terminal " VC", ground connection
The common port " GND " of " Gnd " connection circuit is held, " out " end is signal output part, and the output of out ends flows through power supply to be proportional to
The signal of socket XS1 electric currents.
Further, the control execution circuit is using transistor VT1, thyristor VT2, resistance R1 and R2, capacitance
C2, diode VD1, electromagnetic relay K1 composition electronic switching circuits, the control pole connection Hall current sensor of thyristor VT2
The signal output part out of HE1, while connect respective one end of resistance R2 and capacitance C2, the other end of R2 and C2 are all connected with circuit
Public terminal GND, the public terminal GND of the cathode connection circuit of VT2, the anode connection resistance R1 and transistor VT1 of VT2
Base stage, the other end connection working power positive terminal V of R1C, the public terminal GND of the emitter connection circuit of VT1, the current collection of VT1
Pole connects one end of electromagnetic relay K1 coils and diode VD1 anodes, the other end of K1 coils and the cathode of VD1 are all connected with work
Make power positive end VC, the moving together contact of K1 is series in the phase line current supply circuit of power outlet XS1.
Further, the working power circuit is used by zener diode VD3, rectifier diode VD2, capacitance C1 and C2
Capacitor step-down rectification circuit, filter circuit and the regulator circuit of composition export VCFor the antioverloading protection type power outlet
Current detection circuit and control execution circuit provide working power.One end connection incoming power L ends of decompression capacitor C1, and with
One end that the moving together contact of electromagnetic relay K1 does not meet power outlet XS1 is connected；The other end connection voltage stabilizing of decompression capacitor C1
The cathode of diode VD3 and the anode of rectifier diode VD2；The anode connection circuit common GND of zener diode VD3；It is whole
Flow the cathode connection power positive end V of diode VD2C；The anode connection power positive end V of capacitance C2C, the cathode company of capacitance C2
Meet circuit common GND.
The beneficial effects of the invention are as follows：As a result of current detection circuit and control execution circuit so that the antioverloading
Protection type power outlet possesses excess current protective function.Specifically, when the electric current flowed through in the circuit of power outlet XS1 is more than
During limit value, execution circuit is controlled by the power supply for socket of cutting off the power at once, therefore, the antioverloading protection type power outlet
Can effectively protection power source socket XS1 it is against damages, protect safety and the personal safety of electrical appliance.
Description of the drawings
The specific embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the circuit diagram of the present invention.In figure：For the power outlet XS1 that electrical appliance patches, decompression capacitor C1,
Zener diode VD3, rectifier diode VD2, filter condenser C2, Hall current sensor HE1, biasing resistor R1, differential electricity
R2, differential capacitance C1, thyristor VT2, transistor VT1, electromagnetic relay K1 are hindered, protection diode VD1 is series at power supply
For moving together contact in the current supply circuit of socket XS1 belonging to K1, terminal L, N in circuit connect the L lines and N of line respectively
Line.
Specific embodiment
As shown in Figure 1, a kind of antioverloading protection type power outlet, including load current detection circuit, control execution circuit
And working power circuit.
Further, the current detection circuit is the current sensor HE1 used using Hall element characteristic, and electric current is examined
Test coil is series in the current supply circuit of power outlet XS1, power end " VCC" connection working power positive terminal " VC", ground connection
The common port " GND " of " Gnd " connection circuit is held, " out " end is signal output part, and the output of out ends flows through power supply to be proportional to
The signal of socket XS1 electric currents.
Further, the control execution circuit is using transistor VT1, thyristor VT2, resistance R1 and R2, capacitance
C2, diode VD1, electromagnetic relay K1 composition electronic switching circuits, the control pole connection Hall current sensor of thyristor VT2
The signal output part out of HE1, while connect respective one end of resistance R2 and capacitance C2, the other end of R2 and C2 are all connected with circuit
Public terminal GND, the public terminal GND of the cathode connection circuit of VT2, the anode connection resistance R1 and transistor VT1 of VT2
Base stage, the other end connection working power positive terminal V of R1C, the public terminal GND of the emitter connection circuit of VT1, the current collection of VT1
Pole connects one end of electromagnetic relay K1 coils and diode VD1 anodes, the other end of K1 coils and the cathode of VD1 are all connected with work
Make power positive end VC, the primary coil of Hall current sensor HE1 is series in the current supply circuit of power outlet XS1, K1's
Moving together contact is series in the phase line current supply circuit of power outlet XS1.
Further, the working power circuit is used by zener diode VD3, rectifier diode VD2, capacitance C1 and C2
Capacitor step-down rectification circuit, filter circuit and the regulator circuit of composition export VCIt is protected for this using the overcurrent of Hall element
The current detection circuit and control execution circuit for protecting power outlet provide working power.One end connection inlet wire electricity of decompression capacitor C1
Source L ends, and the one end for not meeting with the moving together contact of electromagnetic relay K1 power outlet XS1 is connected；Decompression capacitor C1's is another
The cathode of end connection zener diode VD3 and the anode of rectifier diode VD2；The anode connection circuit of zener diode VD3 is public
Concurrent GND；The cathode connection power positive end V of rectifier diode VD2C；The anode connection power positive end V of capacitance C2C, capacitance
The cathode connection circuit common GND of C2.
The preferred embodiments of the disclosure and embodiment are elaborated above in conjunction with attached drawing, but it is of the invention
The above-described embodiment and examples are not limited to, in the knowledge possessed in those skilled in the art, can also not departed from
It is made a variety of changes on the premise of present inventive concept, but protection scope of the present invention should all be fallen into.
Claims (3)
1. the electric current of the power outlet XS1 electric currents to power to the load is flowed through in a kind of antioverloading protection type power outlet including detection
Detection circuit, control execution circuit and working power circuit.
2. a kind of antioverloading protection type power outlet as described in claim 1, it is characterised in that：The current detection circuit
Using Hall current sensor HE1, electric current detecting coil is series in the current supply circuit of power outlet XS1, power end
“VCC" connection working power positive terminal " VC", ground terminal " Gnd " connects the common port " GND " of circuit, and " out " end is signal
Output terminal.
3. antioverloading protection type power outlet as described in claim 1, it is characterised in that：The control execution circuit uses
Transistor VT1, thyristor VT2, resistance R1 and R2, capacitance C2, diode VD1, electromagnetic relay K1 composition electronic switches
Circuit, the signal output part out of the control pole connection Hall current sensor HE1 of thyristor VT2, while connect resistance R2 and electricity
The other end of respective one end of appearance C2, R2 and C2 are all connected with the public terminal GND of circuit, the common port of the cathode connection circuit of VT2
The base stage of the anode connection resistance R1 and transistor VT1 of GND, VT2, the other end connection working power positive terminal V of R1C,
The public terminal GND of the emitter connection circuit of VT1, one end of the collector connection electromagnetic relay K1 coils of VT1 and diode
VD1 anodes, the other end of K1 coils and the cathode of VD1 are all connected with working power positive terminal VC, the moving together contact of K1 is series at electricity
In the phase line current supply circuit of supply socket XS1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611001437.2A CN108075442A (en) | 2016-11-15 | 2016-11-15 | Antioverloading protection type power outlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611001437.2A CN108075442A (en) | 2016-11-15 | 2016-11-15 | Antioverloading protection type power outlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108075442A true CN108075442A (en) | 2018-05-25 |
Family
ID=62162214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611001437.2A Pending CN108075442A (en) | 2016-11-15 | 2016-11-15 | Antioverloading protection type power outlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108075442A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2169940Y (en) * | 1993-08-09 | 1994-06-22 | 朱培立 | Leakage, over voltage and over-load protector |
| CN2195147Y (en) * | 1994-07-26 | 1995-04-19 | 刘小平 | Electronic current overload protection relay for vehicle |
| CN204720700U (en) * | 2015-06-14 | 2015-10-21 | 南安市德华电子设备厂 | A kind of overload protection alarm socket |
| CN205319473U (en) * | 2016-01-04 | 2016-06-15 | 西南大学 | From outage and warning socket based on hall |
| CN205646340U (en) * | 2016-04-26 | 2016-10-12 | 东北大学秦皇岛分校 | Warning socket overflows |
-
2016
- 2016-11-15 CN CN201611001437.2A patent/CN108075442A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2169940Y (en) * | 1993-08-09 | 1994-06-22 | 朱培立 | Leakage, over voltage and over-load protector |
| CN2195147Y (en) * | 1994-07-26 | 1995-04-19 | 刘小平 | Electronic current overload protection relay for vehicle |
| CN204720700U (en) * | 2015-06-14 | 2015-10-21 | 南安市德华电子设备厂 | A kind of overload protection alarm socket |
| CN205319473U (en) * | 2016-01-04 | 2016-06-15 | 西南大学 | From outage and warning socket based on hall |
| CN205646340U (en) * | 2016-04-26 | 2016-10-12 | 东北大学秦皇岛分校 | Warning socket overflows |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180525 |