CN205581702U - Use safety protection circuit on electric airer - Google Patents
Use safety protection circuit on electric airer Download PDFInfo
- Publication number
- CN205581702U CN205581702U CN201620380310.5U CN201620380310U CN205581702U CN 205581702 U CN205581702 U CN 205581702U CN 201620380310 U CN201620380310 U CN 201620380310U CN 205581702 U CN205581702 U CN 205581702U
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- electronic switch
- load
- electrical switch
- live wire
- zero line
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Abstract
The utility model provides an use safety protection circuit on electric airer, includes an electronic switch, the 2nd electronic switch and controller, an electronic switch sets up between the load that exchanges live wire and electric airer, the 2nd electronic switch sets up between the load that exchanges zero line and electric airer, a controller output control signal control electronic switch and the 2nd electronic switch put through simultaneously or break off. In a preferred embodiments, an electronic switch and the 2nd electronic switch adopt two sets of normally open contact of same relay, controller output control signal controls through drive circuit relay operation. The utility model discloses because the break -make of two phase lines of simultaneous control zero line live wire, so no matter whether the zero line live wire connects the mistake, on the electric main can not be connected to the load, the load was guaranteed with electricity, the security improves greatly.
Description
Technical field
This utility model relates to a kind of safety protective circuit applied on electric clothes airing machine.
Background technology
Electric clothes airing machine control system in the market, is essentially all the ON/OFF being realized load by relay, controls
System is all one pole control to the control of relay, and this kind of control mode simply controls the live wire of mains supply, once hookup wire
Lu Shi, zero line live wire regardless of, arise that the charged situation of load, there is the biggest potential safety hazard.
The when of as in figure 2 it is shown, install electric clothes airing machine plug, do not install according to the mode of left zero right fire, especially exist
Rural area, the phenomenon installed regardless of zero line live wire is the most universal, if the zero line of electric clothes airing machine panel receives the live wire L of civil power,
Live wire receives the zero line N of civil power, and when cutting off load power source, the zero line N of the simply mains supply of cut-out, load LP still connect
Ignition line, causes load LP charged.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art exactly, it is provided that a kind of safety applied on electric clothes airing machine
Protection circuit, install circuit time, even if zero line live wire regardless of, load also will not be charged.
For achieving the above object, a kind of safety protective circuit applied on electric clothes airing machine of this utility model, including first
Electrical switch, the second electrical switch and controller, described first electrical switch is arranged on the negative of exchange live wire and electric clothes airing machine
Between load, described second electrical switch is arranged between exchange zero line and the load of electric clothes airing machine, the output control of described controller
Signal processed controls the first electrical switch and the second electrical switch is also turned on or disconnects.
In a preferred embodiment, described first electrical switch and the second electrical switch use two groups of same relay
Normally opened contact, described controller output control signal controls the described actuating of relay through drive circuit.
This utility model is owing to controlling the break-make of two phase lines of zero line live wire simultaneously, therefore no matter zero line live wire is either with or without wrong,
Electric main is all without being connected in load, and load ensures not charged, and safety is greatly improved.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of embodiment；
Fig. 2 is circuit theory diagrams during prior art zero line live wire wrong.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model embodiment is described in detail.
As it is shown in figure 1, embodiment includes relay R LY, drive circuit and controller, relay R LY have two groups normally opened
Contact, one group of normally opened contact as the first electrical switch K1, be arranged on exchange live wire L and electric clothes airing machine load LP it
Between, another group normally opened contact as the second electrical switch K2, be arranged on exchange zero line N and electric clothes airing machine load LP it
Between, drive circuit includes resistance R1 and audion Q1, when the mouth line A of controller exports high-level control signal, audion
Q1 turns on, the coil electricity of relay R LY, and the first electrical switch K1 and the second equal adhesive of electrical switch K2 are connected, negative
Carrying LP energising, when the mouth line A output low level control signal of controller, audion Q1 ends, the coil of relay R LY
Power-off, the first electrical switch K1 and the second electrical switch K2 all discharge disconnection, load LP power-off.
Visible, embodiment relay controls the break-make of two phase lines simultaneously, uses bipolar control.Relay is at electric clothes airing
After disconnecting zero fire phase line on machine panel, 220V electric main is not coupled in peripheral connecting line and load, the most more pacifies
Entirely.
Claims (2)
1. apply the safety protective circuit on electric clothes airing machine for one kind, it is characterised in that: include the first electrical switch, the second electricity
Son switch and controller, described first electrical switch is arranged between exchange live wire and the load of electric clothes airing machine, and described second
Electrical switch is arranged between exchange zero line and the load of electric clothes airing machine, and described controller output control signal controls the first electricity
Son switch and the second electrical switch are also turned on or disconnect.
Safety protective circuit the most according to claim 1, it is characterised in that: described first electrical switch and the second electronic cutting
Closing the two groups of normally opened contacts using same relay, described controller output control signal controls described relay through drive circuit
Action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620380310.5U CN205581702U (en) | 2016-04-29 | 2016-04-29 | Use safety protection circuit on electric airer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620380310.5U CN205581702U (en) | 2016-04-29 | 2016-04-29 | Use safety protection circuit on electric airer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205581702U true CN205581702U (en) | 2016-09-14 |
Family
ID=56858358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620380310.5U Active CN205581702U (en) | 2016-04-29 | 2016-04-29 | Use safety protection circuit on electric airer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205581702U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107992148A (en) * | 2016-10-26 | 2018-05-04 | 泰科电子(上海)有限公司 | AC load control module |
| CN110600330A (en) * | 2019-10-07 | 2019-12-20 | 佛山市中协电器有限公司 | Relay and relay module |
-
2016
- 2016-04-29 CN CN201620380310.5U patent/CN205581702U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107992148A (en) * | 2016-10-26 | 2018-05-04 | 泰科电子(上海)有限公司 | AC load control module |
| CN110600330A (en) * | 2019-10-07 | 2019-12-20 | 佛山市中协电器有限公司 | Relay and relay module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170223 Address after: Guangzhou City, Guangdong Province Petrochemical Road 511434 Panyu District Hualong Town Gate No. 21 Patentee after: GUANGDONG HOTATA GROUP CO., LTD. Address before: Guangzhou City, Guangdong Province Petrochemical Road 511434 Panyu District Hualong Town Gate No. 21 Patentee before: GUANGDONG HOTATA INTELLIGENT TECHNOLOGY CO., LTD. |