CN106099835A - One wire system band overload, short-circuit protection electrical switch - Google Patents
One wire system band overload, short-circuit protection electrical switch Download PDFInfo
- Publication number
- CN106099835A CN106099835A CN201610418383.3A CN201610418383A CN106099835A CN 106099835 A CN106099835 A CN 106099835A CN 201610418383 A CN201610418383 A CN 201610418383A CN 106099835 A CN106099835 A CN 106099835A
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- Prior art keywords
- electric capacity
- switch
- audion
- resistance
- short
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Classifications
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- 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
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- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a kind of one wire system band overload, short-circuit protection electrical switch, include rectifier bridge D1, resistance R1, electric capacity C1 and audion V1, electric capacity C2, electric capacity C3, audion V2, resistance R2, coil J and switch K, runback element PTC and load L.The present invention uses electronic devices and components in the mechanical open Central Shanxi Plain, control to be realized by electronic device to the sampling of current signal and the output of switch motion, solve switch of the prior art but cannot realize when circuit occurs overload or short circuit, the most quickly without electric arc break-make, causing the quality of switch and being difficult to guaranteed defect service life.
Description
Technical field
The present invention relates to electrical switch field, specifically a kind of one wire system band overload, short-circuit protection electrical switch.
Background technology
Conventional switch of the prior art is mechanical switch, needs manual toggle switch, to realize the logical of control circuit
Disconnected, operationally there is a lot of inconvenience in it, then electrical switch just arises at the historic moment, such as: soft-touch control, audio-switch, shakes
Dynamic switch etc., but electrical switch to have make-break capacity little, and have certain power consumption.
Switch of the prior art all has but cannot realize the most quickly nothing electricity when appearance overload or short circuit in circuit
Arc break-make, causes the quality of switch and is difficult to service life be guaranteed.
Summary of the invention
It is an object of the invention to provide a kind of one wire system band overload, short-circuit protection electrical switch, solve in prior art
Switch and but cannot realize when circuit occurs overload or short circuit, the most quickly without electric arc break-make, causing quality and the use of switch
Life-span is difficult to guaranteed defect.
Technical scheme is as follows:
A kind of one wire system band overload, short-circuit protection electrical switch, include rectifier bridge D1, resistance R1, electric capacity C1 and audion V1,
Electric capacity C2, electric capacity C3, audion V2, resistance R2, coil J and switch K, runback element PTC and load L, it is characterised in that: institute
The one group of pin stating the emitter stage of audion V1 relative with described rectifier bridge D1 respectively with colelctor electrode is connected, described resistance
R1 and electric capacity C1 is connected to after being in parallel between base stage and the colelctor electrode of described audion V1；
With institute after described electric capacity C3 and resistance R2 is in series, the colelctor electrode of described audion V2 is in series with described coil J
The electric capacity C2 stated is in parallel, then is connected to after the runback element PTC that connects between another relative group pin of described rectifier bridge D1,
Between electric capacity C3 and the resistance R2 described in base stage access of described audion V2；Described runback element PTC, switch K and load L
External AC power supply after being in series.
Described one wire system band overload, short-circuit protection electrical switch, it is characterised in that: described rectifier bridge D1, resistance R1,
Electric capacity C1 and audion V1 forms automatic switching circuit.
Described one wire system band overload, short-circuit protection electrical switch, it is characterised in that: described electric capacity C2, electric capacity C3, three
Pole pipe V2, resistance R2, coil J and switch K composition perform circuit.
Described one wire system band transships, short-circuit protection electrical switch, it is characterised in that: described runback element PTC composition
Current detection circuit.
Beneficial effects of the present invention:
The present invention uses electronic devices and components in the mechanical open Central Shanxi Plain, controls the sampling of current signal and the output of switch motion
Realized by electronic device, solve switch of the prior art and but cannot realize in time when circuit occurs overload or short circuit
Quickly without electric arc break-make, cause the quality of switch and be difficult to guaranteed defect service life, being that current switch preferably replaces
For product；Properties of product of the present invention are stable, and idle, break-make, without electric arc, extends the service life of switch；It addition, the present invention
Circuit is simple, and element is few, highly sensitive, low cost, and volume is little, miniaturization, easy to manufacture.
Accompanying drawing explanation
Fig. 1 is circuit structure schematic diagram of the present invention.
Detailed description of the invention
See Fig. 1, a kind of one wire system band overload, short-circuit protection electrical switch, include rectifier bridge D1, resistance R1, electric capacity
C1 and audion V1, electric capacity C2, electric capacity C3, audion V2, resistance R2, coil J and switch K, runback element PTC and load L,
One group of pin that the emitter stage of audion V1 is relative with rectifier bridge D1 respectively with colelctor electrode is connected, resistance R1 and electric capacity C1 phase
It is connected to after parallel connection between base stage and the colelctor electrode of audion V1；
It is in parallel with electric capacity C2 after electric capacity C3 and resistance R2 is in series, the colelctor electrode of audion V2 is in series with coil J, then connects
Be connected to after runback element PTC between another group pin relative of rectifier bridge D1, the base stage of audion V2 access electric capacity C3 and
Between resistance R2；Runback element PTC, switch K and load L be in series after external AC power supply.
In the present invention, rectifier bridge D1, resistance R1, electric capacity C1 and audion V1 form automatic switching circuit；Electric capacity C2, electric capacity
C3, audion V2, resistance R2, coil J and switch K composition perform circuit；Runback element PTC forms current detection circuit.
Below in conjunction with accompanying drawing, the present invention is further illustrated:
When, after switch K Guan Bi, electric current is through runback element PTC, switch K, flow direction load L.When runback element PTC detects load L
When crossing stream, it presses the size inverse time-lag cut-off current of overload flow automatically；When runback element PTC detects load L short circuit
Time, it is no-delay, rapidly switches off electric current in 1ms.
When, after runback element PTC cut-off current, producing voltage at its two ends and provide power supply to circuit, meanwhile rectifier bridge
D1 obtains electric, and electric current flows to the base stage of audion V1 by electric capacity C1, makes audion V1 turn on, simultaneously rectifier bridge D1 to electric capacity C2,
Electric capacity C3 charges, when, after electric capacity C1 charging complete, audion V1 ends because of base stage dead electricity, and rectifier bridge D1 ends simultaneously.Rectification
When bridge D1 charges to electric capacity C2, electric capacity C3, electric capacity C2 rapid charging complete energy storage provides power supply to coil J, audion V2.Due to
Electric capacity C3 is slow through resistance R2 current-limiting charge speed, provides electric current to after time delay audion V2 base stage again, makes audion V2 turn on, line
Circle J obtains and electric makes switch K disconnect.Now on switch K, no current passes through, it is achieved thereby that break-make is without electric arc, extends switch and uses
The purpose in life-span.Owing to the resistance value of runback element PTC is the least, when circuit is shorted, without working power, do not work, idle
Consumption.
Claims (4)
1. one wire system band overload, a short-circuit protection electrical switch, include rectifier bridge D1, resistance R1, electric capacity C1 and audion
V1, electric capacity C2, electric capacity C3, audion V2, resistance R2, coil J and switch K, runback element PTC and load L, its feature exists
In: one group of pin that the emitter stage of described audion V1 is relative with described rectifier bridge D1 respectively with colelctor electrode is connected, described
Resistance R1 and electric capacity C1 be in parallel after be connected between base stage and the colelctor electrode of described audion V1；
With institute after described electric capacity C3 and resistance R2 is in series, the colelctor electrode of described audion V2 is in series with described coil J
The electric capacity C2 stated is in parallel, then is connected to after the runback element PTC that connects between another relative group pin of described rectifier bridge D1,
Between electric capacity C3 and the resistance R2 described in base stage access of described audion V2；Described runback element PTC, switch K and load L
External AC power supply after being in series.
One wire system band the most according to claim 1 overload, short-circuit protection electrical switch, it is characterised in that: described rectification
Bridge D1, resistance R1, electric capacity C1 and audion V1 form automatic switching circuit.
One wire system band the most according to claim 1 overload, short-circuit protection electrical switch, it is characterised in that: described electric capacity
C2, electric capacity C3, audion V2, resistance R2, coil J and switch K composition perform circuit.
One wire system band the most according to claim 1 overload, short-circuit protection electrical switch, it is characterised in that: described runback
Element PTC forms current detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610418383.3A CN106099835A (en) | 2016-06-12 | 2016-06-12 | One wire system band overload, short-circuit protection electrical switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610418383.3A CN106099835A (en) | 2016-06-12 | 2016-06-12 | One wire system band overload, short-circuit protection electrical switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106099835A true CN106099835A (en) | 2016-11-09 |
Family
ID=57846408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610418383.3A Pending CN106099835A (en) | 2016-06-12 | 2016-06-12 | One wire system band overload, short-circuit protection electrical switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106099835A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87201926U (en) * | 1987-02-11 | 1988-03-23 | 中国人民解放军海军工程学院 | Metal induction electronic switch |
| CN1189715A (en) * | 1996-10-11 | 1998-08-05 | 莱格兰德公司 | Two-wire power supply electronic switch |
| CN203522683U (en) * | 2013-11-01 | 2014-04-02 | 广州汉光电气有限公司 | Power-off delay time relay control circuit |
-
2016
- 2016-06-12 CN CN201610418383.3A patent/CN106099835A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87201926U (en) * | 1987-02-11 | 1988-03-23 | 中国人民解放军海军工程学院 | Metal induction electronic switch |
| CN1189715A (en) * | 1996-10-11 | 1998-08-05 | 莱格兰德公司 | Two-wire power supply electronic switch |
| CN203522683U (en) * | 2013-11-01 | 2014-04-02 | 广州汉光电气有限公司 | Power-off delay time relay control circuit |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161109 |
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| WD01 | Invention patent application deemed withdrawn after publication |