CN201305765Y - Power control device of washer - Google Patents
Power control device of washer Download PDFInfo
- Publication number
- CN201305765Y CN201305765Y CNU2008203029478U CN200820302947U CN201305765Y CN 201305765 Y CN201305765 Y CN 201305765Y CN U2008203029478 U CNU2008203029478 U CN U2008203029478U CN 200820302947 U CN200820302947 U CN 200820302947U CN 201305765 Y CN201305765 Y CN 201305765Y
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- Prior art keywords
- relay
- links
- power
- control
- washing machine
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- Control Of Washing Machine And Dryer (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
The utility model relates to a washer power control device, in particular to a power control device of a washer, which is disconnected with an external power. An AC power is connected with a transformer; a current output circuit of the transformer is connected with a rectification circuit; a live conductor of the AC power is provided with a relay; a current output end of the relay is connected with a two-way switch; a fixed contact 2 of the two-way switch is connected with a control unit and is grounded; a fixed contact 4 is connected with a current input end of the relay; the current output end of the rectification circuit is respectively connected with the control unit and the current input end of a work coil of the relay; a control signal input end of a control circuit of the relay is connected with a control signal output end of the control unit; and the current output end of the relay and an inner conductor are respectively connected with a washer load. The control circuit is completely disconnected with the external power when the washer is in an non-working state, and the utility model has convenient use, simple structure and low cost.
Description
Technical field
The utility model relates to a kind of controller of washer, especially relates to a kind of power control that disconnects the washing machine that is connected with extraneous power supply.
Background technology
The most touch switch that adopted of the startup of washing machine at present/close, not only attractive in appearance, and easy to use, but now common contact witch can only make washing machine be in a kind of " standby " state, and the control circuit that is to say washing machine still has the "on" position that is in of part or branch.This state not only causes waste to electric resources, simultaneously also to shining into influence the service life of control circuit of the washing machine.As the patent No. is power switch device and the control device that the patent of invention of CN98123088.1 discloses a kind of washing machine etc., (as accompanying drawing 2) be control device 17 wherein, during power connection switch 15 is switched on, make power switch device 13 closures, when power supply cut-off switch 16 is connected, power switch device 13 is disconnected by dc source 11 power supplies.Like this, in power-off state, promptly the load not the action state the time not to DC power supply, under the state of offhand electric power, can carry out the input of switch, thereby can make the operating process of switch short, and can import, thereby can improve operability, water proofing property with simple touch manner.The control device of this technical scheme all is in "on" position in the work of washing machine or when not working.
Summary of the invention
The utility model mainly is that the power control circuit that solves the existing in prior technology washing machine all is in "on" position in the work of washing machine with when not working, cause short etc. the technical problem of its electricity wasting, service life, provide a kind of when washing machine is in off position, its control circuit and extraneous power supply disconnect fully, and technical scheme easy to use, simple in structure, that cost is low.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of power control of washing machine, comprise shift knob, relay, transformer, control module and AC power, it is characterized in that described AC power links to each other with a transformer, the current output circuit of transformer links to each other with a rectification circuit, the live wire of described AC power is provided with a relay, the current output terminal of relay connects a two-way switch, the contact 2 of deciding of this two-way switch links to each other with control module, and ground connection, deciding contact 4 links to each other with the current input terminal of relay, the current output terminal of described rectification circuit links to each other with the current input terminal of control module with the relay actuating coil respectively, the control signal input of the control circuit of relay links to each other with the control signal output of control module, and the current output terminal of relay links to each other with the washing machine load respectively with the AC power zero line.When the operator need start washing machine, in deciding contact 4, this moment, the transformer input voltage was connected, its output output current with the two-way switch closure, control module gets, because the contact 2 of deciding of two-way switch links to each other with control module, and ground connection, so the signal that control module collects is in low level, and to high level signal of the control circuit of relay input, the control circuit of relay is worked after collecting this signal, and connects AC power, starts washing machine.After the washing machine starting, firing switch is closed and decide contact 2, and the signal that control module collects is in high level.When needs are closed washing machine, with two-way switch from closure in decide contact 2 to closure in deciding contact 4, control module collects from high electric screen to low level signal process, change procedure according to this signal is imported a low level signal to the control circuit of relay, and after the control circuit of relay collected this signal, coil circuit was disconnected, be in the state that electric current is disconnected, then disconnect AC power, make two-way switch be returned to initial position then, the The whole control circuit is in cold state.
As preferably, the power control of washing machine according to claim 1, it is characterized in that described two-way switch to decide contact 2 normally closed, decide contact 4 and often open.Make that switch closure is in deciding contact 4 when pulling out this switch with external force, when external force disappeared, switch closure was in deciding contact 2.The needs that both satisfied control make that also control is convenient.
As preferably, the control circuit of described relay has by a triode as noncontacting switch, the base stage of this triode links to each other with the control signal output of control module as signal input part, and colelctor electrode links to each other grounded emitter with the current output terminal of relay actuating coil.When base stage was in high level state, relay coil obtained electric current, was in on-state; When base stage was in high level state, relay coil no power (electric current is very little, can think on macroscopic view no power) was in off-state.
As preferably, the output voltage of described rectification circuit is respectively 5V and 12V, and wherein 5V voltage links to each other with control module, and 12V voltage links to each other with the current input terminal of relay actuating coil.
As preferably, it is characterized in that described transformer output voltage is output as the 12V direct current through rectification circuit, this 12V voltage is output as the 5V direct current through voltage-stablizer.
The beneficial effect that brings of the present utility model is, the power control circuit that has solved the existing in prior technology washing machine all is in "on" position in the work of washing machine with when not working, cause short etc. the technical problem of its electricity wasting, service life, provide a kind of when washing machine is in off position, its control circuit and extraneous power supply disconnect fully, and technical scheme easy to use, simple in structure, that cost is low.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is a kind of power switch device and control device.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: accompanying drawing 1 is a kind of structural representation of the utility model number, AC power links to each other with a transformer, the current output circuit of transformer links to each other with a rectification circuit, the transformer output voltage is output as the 12V direct current through rectification circuit, and this 12V voltage is output as the 5V direct current through voltage-stablizer.The live wire of AC power is provided with a relay, and the current output terminal of relay connects a two-way switch S1, two-way switch to decide contact 2 normally closed, decide contact 4 and often open.Make that switch closure is in deciding contact 4 when pulling out this switch with external force, when external force disappeared, switch closure was in deciding contact 2.The contact 2 of deciding of this two-way switch links to each other with the contact P12 of control module IC1, and ground connection, deciding contact 4 links to each other with the current input terminal of relay, the current output terminal of rectification circuit links to each other with the current input terminal of control module with the relay actuating coil respectively, the control signal input of the control circuit of relay links to each other with the control signal output P25 of control module, wherein 5V voltage links to each other with control module contact P24, and 12V voltage links to each other with the current input terminal of relay actuating coil.The control circuit of relay has by a triode as noncontacting switch, and the base stage of this triode links to each other with the control signal output of control module as signal input part, and colelctor electrode links to each other grounded emitter with the current output terminal of relay actuating coil.The current output terminal of relay links to each other with the washing machine load respectively with the AC power zero line.
When the operator need start washing machine, in peace contact 4, this moment, the transformer input voltage was connected, its output output current with the two-way switch closure, control module gets, because the contact 2 of deciding of two-way switch links to each other with control module, and ground connection, so the signal that control module collects is in low level, and to high level signal of the control circuit of relay input, the control circuit of relay is worked after collecting this signal, and connects AC power, starts washing machine.After the washing machine starting, after playing, unclamp its auto-closing of firing switch and decide contact 2, the signal that control module collects is in high level.When needs are closed washing machine, with two-way switch from closure in decide contact 2 to closure in deciding contact 4, control module collects from high electric screen to low level signal process, change procedure according to this signal is imported a low level signal to the control circuit of relay, and after the control circuit of relay collected this signal, coil circuit was disconnected, be in the state that electric current is disconnected, then disconnect AC power, make two-way switch be returned to initial position then, the The whole control circuit is in cold state.
So when the utility model had realized that washing machine is in off position, its control circuit and extraneous power supply were in fully the state of isolating, it is low to save electric resources, long service life, cost simple to operate.
Claims (6)
- The power control of [claim 1] a kind of washing machine, comprise shift knob, relay, transformer, control module and AC power, it is characterized in that described AC power links to each other with a transformer, the current output circuit of transformer links to each other with a rectification circuit, the live wire of described AC power is provided with a relay, the current output terminal of relay connects a two-way switch, the contact (2) of deciding of this two-way switch links to each other with control module, and ground connection, deciding contact (4) links to each other with the current input terminal of relay, the current output terminal of described rectification circuit respectively with the current input terminal of control module and relay actuating coil, the control signal input of the control circuit of relay links to each other with the control signal output of control module, and the current output terminal of relay links to each other with the washing machine load respectively with the AC power zero line.
- The power control of [claim 2] washing machine according to claim 1, it is characterized in that described two-way switch to decide contact (2) normally closed, decide contact (4) and often open.
- The power control of [claim 3] washing machine according to claim 1 and 2, the control circuit that it is characterized in that described relay has by a triode as noncontacting switch, the base stage of this triode links to each other with the control signal output of control module as signal input part, colelctor electrode links to each other grounded emitter with the current output terminal of relay actuating coil.
- The power control of [claim 4] washing machine according to claim 1 and 2, the output voltage that it is characterized in that described rectification circuit is respectively 5V and 12V, wherein 5V voltage links to each other with control module, and 12V voltage links to each other with the current input terminal of relay actuating coil.
- The power control of [claim 5] washing machine according to claim 3, the output voltage that it is characterized in that described rectification circuit is respectively 5V and 12V, wherein 5V voltage links to each other with control module, and 12V voltage links to each other with the current input terminal of relay actuating coil.
- The power control of [claim 6] washing machine according to claim 4 is characterized in that described transformer output voltage is output as the 12V direct current through rectification circuit, and this 12V voltage is output as the 5V direct current through voltage-stablizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203029478U CN201305765Y (en) | 2008-11-26 | 2008-11-26 | Power control device of washer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203029478U CN201305765Y (en) | 2008-11-26 | 2008-11-26 | Power control device of washer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201305765Y true CN201305765Y (en) | 2009-09-09 |
Family
ID=41098232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008203029478U Expired - Fee Related CN201305765Y (en) | 2008-11-26 | 2008-11-26 | Power control device of washer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201305765Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032545A (en) * | 2014-06-17 | 2014-09-10 | 周轶文 | Safety washing machine |
| CN105648707A (en) * | 2014-11-10 | 2016-06-08 | 合肥美的洗衣机有限公司 | Coin-feed washing machine and control device thereof |
-
2008
- 2008-11-26 CN CNU2008203029478U patent/CN201305765Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032545A (en) * | 2014-06-17 | 2014-09-10 | 周轶文 | Safety washing machine |
| CN105648707A (en) * | 2014-11-10 | 2016-06-08 | 合肥美的洗衣机有限公司 | Coin-feed washing machine and control device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20121126 |