CN201546062U - Entire machine power interruption control device for washing machines - Google Patents
Entire machine power interruption control device for washing machines Download PDFInfo
- Publication number
- CN201546062U CN201546062U CN2009202175185U CN200920217518U CN201546062U CN 201546062 U CN201546062 U CN 201546062U CN 2009202175185 U CN2009202175185 U CN 2009202175185U CN 200920217518 U CN200920217518 U CN 200920217518U CN 201546062 U CN201546062 U CN 201546062U
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- relay
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- power supply
- singlechip chip
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Abstract
The utility model relates to an entire machine power interruption control device for washing machines so as to realize entire machine power interruption when home appliances are in standby states. The device comprises a relay K1 controlled and driven by a microcomputer chip, the contacts of the relay K1 are connected to the main AC power supply loop of a washing machine in series, and the contact two ends of the relay K1 are connected with a switch. The normally closed contact of the switch is connected with the ground potential of the DC low voltage power supply circuit of a computer board through two divider resistors R1 and R2, and the common end 1 of the switch is connected with a live wire L and the output end VCC of the DC low voltage power supply circuit to form a loop. The utility model having the advantage of simple structure and reliable control can be used for other home appliances in similar power structures. The application of the device to washing machines and other home appliances can simplify operation, improve appliance safety and eliminate standby power consumption.
Description
Technical field
The utility model relates to household electrical appliances power supply control field, particularly a kind of complete machine power-down control device that is used for washing machine.
Background technology
At present, the power control circuit of two-tub washing machine, as shown in Figure 1, comprise transformer T1, relay K 1, dc low-voltage power supply circuits and single-chip microcomputer (not shown on the figure), wherein, the primary coil of transformer T1 is connected with live wire L, the zero line N of power supply, and the secondary coil of transformer T1 is connected with the dc low-voltage power supply circuits, the dc low-voltage power supply circuits are the single-chip microcomputer power supply, and relay K 1 is connected with live wire L.
After the attaching plug of household electrical appliances inserts charged socket, the transformer T 1 that is connected with power supply can be converted to low-voltage AC to the High Level AC Voltage from power supply, the dc low-voltage power supply circuits are converted to low-voltage DC to low-voltage AC again and supply with subsequent control circuit and single-chip microcomputer, get electric Single-chip Controlling relay K 1 closure, then motor gets electric work, Single-chip Controlling relay K 1 disconnects, and then the motor outage quits work, and household electrical appliances enter holding state.
At this moment, transformer T1 still is connected with power supply by supply socket, and the subsequent control circuit and the single-chip microcomputer that are connected with transformer T1 are charged too.Therefore, the user must pull out attaching plug, could cut off the complete machine AC power, avoids power consumption.But often plug attaching plug and can bring inconvenience, also can cause the aged deterioration of equipment to the user.
In numerous household electrical appliance, in order to address the above problem, be provided with the hand switch of main power source specially, can cut off the complete machine power supply of household electrical appliance manually, avoid power consumption.But frequent power supply controlling switch, the trouble of bringing to the user still exists, and has increased extra potential safety hazard again.
The utility model content
In view of this, main purpose of the present utility model is to provide a kind of complete machine power-down control device that is used for washing machine, cuts off the complete machine power supply when being implemented in the washing machine standby automatically.
The complete machine power-down control device that is used for washing machine that the utility model provides, comprise: by the relay K 1 of singlechip chip control driving, the contact of described relay K 1 is connected in series in the Alternating Current Power Supply major loop of washing machine, and the two ends of the contact of relay K 1 connect a switch SW 1.
As from the foregoing, adopt the complete machine power-down control device of technique scheme, cut off the complete machine power supply when can be implemented in the washing machine standby automatically.
Wherein, described relay K 1 is normally opened relay K1.
As from the foregoing, when washing machine was in standby, the contact of normally opened relay K1 disconnected, and switch SW 1 disconnects, and the stand-by power consumption that makes washing machine is zero.
Wherein, described switch SW 1 is key switch SW1.
As from the foregoing, switch SW 1 adopts key switch, and when washing machine was in standby, key switch SW1 disconnected, closure when key switch SW1 is pressed, and singlechip chip gets electric, and after the user unclamped key switch SW1, key switch SW1 promptly disconnected.
Preferable, two contacts of key switch SW1 and the contact parallel connection of normally opened relay K1.
Wherein, described switch SW 1 is the microswitch SW1 that has normal opened contact.
As from the foregoing, microswitch SW1 has normal opened contact, when washing machine is in standby, the normal opened contact of microswitch disconnects, when microswitch SW1 is pressed, and the normal opened contact closure, singlechip chip gets electric, and after the user unclamped microswitch SW1, the normal opened contact of microswitch SW1 promptly disconnected.
Wherein, also comprise the drive circuit that is connected with singlechip chip, the output of this drive circuit links to each other with the drive coil of normally opened relay K1.
As from the foregoing, also comprise the drive circuit that is connected with singlechip chip, the output of this drive circuit links to each other with the drive coil of normally opened relay K1.Increased drive circuit, can enlarge the range of choice of singlechip chip, reduced cost by the singlechip chip of selecting low price for use.
Wherein, described singlechip chip is the singlechip chip that has driver, and it directly connects the drive coil of normally opened relay K1;
As from the foregoing, adopt the singlechip chip that has driver can make the structure of complete machine power-down control device simpler.
Preferable, described key switch SW1 is the microswitch SW1 with two contacts, one is normally closed contact 2, normally closed contact 2 links to each other with the earth potential of the dc low-voltage power supply circuits of computer plate by divider resistance R1, the R2 of two series connection, one is normal opened contact 3, the contact parallel connection of normal opened contact 3 and normally opened relay K1;
The common port 1 of microswitch SW1 is connected with the contact of normally opened relay K1, and is connected to form the loop with the output VCC of dc low-voltage power supply circuits;
The control port P07 of the singlechip chip on link B and the computer plate of divider resistance R1, the R2 of series connection is connected, the formation signal transmission loop.
As from the foregoing, the complete machine power-down control device that technique scheme constitutes can make the user when washing machine is carried out program for washing, and by pressing key switch SW1, the control washing machine enters holding state.Microswitch SW1 has startup and two kinds of control functions of standby, has simplified the setting of control key button.
The utility model has the advantages that simple in structurely, control is reliable, can be used in other close household electrical appliance of power supply architecture.Use washing machine of the present utility model, can simplify the operation, improve electrical safety, eliminate stand-by electric consumption.
Description of drawings
Fig. 1 is the power control circuit figure of existing washing machine;
Fig. 2 is structural circuit figure of the present utility model;
Fig. 3 is the specific embodiment circuit diagram that is used for the complete machine power-down control device of washing machine.
The specific embodiment
Embodiment 1: the complete machine power-down control device that is used for the washing machine of independent low-voltage power supply, the circuit overlap joint is referring to accompanying drawing 2, comprise: by the normally opened relay K1 of singlechip chip (not shown on the figure) control driving, the contact of described normally opened relay K1 is connected in series in the Alternating Current Power Supply major loop of washing machine and is connected with motor, the microswitch SW1 of the two ends parallel connection one key switch SW1 of the contact of normally opened relay K1 or band normal opened contact is as starting (start) key.
The connected mode of normally opened relay K1 and singlechip chip is according to singlechip chip difference, difference to some extent.The singlechip chip that has driver directly connects the drive coil of normally opened relay K1; The singlechip chip of tape drive does not connect drive circuit (not shown on the figure), and the output of drive circuit links to each other with the drive coil of normally opened relay K1.Two contacts and the normally opened relay K1 contact parallel connection of key switch SW1 get final product.
Concrete, when washing machine was in holding state, the normal opened contact of microswitch SW1 disconnected, and the contact of normally opened relay K1 disconnects, and zero line N and live wire L do not constitute the loop, and motor, singlechip chip and transformer T1 outage are not worked, and stand-by power consumption is zero.
When the needs washing machine is carried out program for washing, the user clicks microswitch SW1, when microswitch SW1 is pressed, make the normal opened contact closure of microswitch SW1, transformer T1 circuit constitutes the loop, powers singlechip chip control normally opened relay K1 closure to singlechip chip by the dc low-voltage power supply circuits, after the user unclamps microswitch SW1, the normal opened contact of microswitch SW1 is disconnected.Because normally opened relay K1 is in closure state, motor and transformer T1 continue electric work.After the program for washing of setting finished, singlechip chip disconnected by drive circuit control normally opened relay K1 according to the EP (end of program) signal that receives, and at this moment, washing machine enters holding state.
Embodiment 2: be used to adopt the complete machine power-down control device of the washing machine of the direct drive motors of bidirectional triode thyristor, concrete circuit comprises referring to accompanying drawing 3: the normally opened relay K1 and the key switch SW1 that are driven by singlechip chip control.
The contact of described normally opened relay K1 is connected in series in the Alternating Current Power Supply major loop of washing machine and is connected with motor.
Described key switch SW1 is the microswitch SW1 with two contacts, one is normally closed contact 2, normally closed contact 2 links to each other with the earth potential of the dc low-voltage power supply circuits of computer plate (not shown on the figure) by divider resistance R1, the R2 of two series connection, one is normal opened contact 3, the contact parallel connection of normal opened contact 3 and normally opened relay K1.
The common port 1 of microswitch SW1 is connected with the contact of normally opened relay K1, and is connected to form the loop with the output VCC of dc low-voltage power supply circuits.
The link B of divider resistance R1, R2 is connected with singlechip chip control port P07 on the computer plate, constitutes signal transmission loop.
The connected mode of normally opened relay K1 and singlechip chip is according to singlechip chip difference, difference to some extent.The singlechip chip that has driver directly connects the drive coil of normally opened relay K1; The singlechip chip of tape drive does not connect drive circuit (not shown on the figure), and the output of drive circuit links to each other with the drive coil of normally opened relay K1.
At the washing machine circuit that adopts the direct drive motors of bidirectional triode thyristor, because the dc low-voltage power supply circuits of its computer plate and the live wire L of electric main directly overlap, the other end of motor links to each other with the zero line N of electric main, the dc low-voltage power supply circuits of computer plate are suspended state, so that the bidirectional triode thyristor conducting.
When user in the washing process need select to shut down, press microswitch SW1, divider resistance R1, R2 implement standby or shutdown to singlechip chip output square wave control signal.This set can make microswitch SW1 have the various control function, can simplify the setting of control key button.
Concrete, during the washing machine holding state, the normal opened contact 3 of microswitch SW1 disconnects with common port 1, and normally opened relay K1 disconnects, and zero line N and live wire L do not constitute the loop, and motor, singlechip chip and transformer T1 outage are not worked, and stand-by power consumption is zero.
When the needs washing machine is carried out program for washing, the user clicks microswitch SW1, when microswitch SW1 is pressed, make the normal opened contact 3 and its common port 1 closure of microswitch SW1, its normally closed contact 2 is disconnected, transformer T1 circuit constitutes the loop, power to singlechip chip by the dc low-voltage power supply circuits, singlechip chip control normally opened relay K1 closure, after the user unclamps microswitch SW1, make the normally closed contact 2 and its common port 1 closure of microswitch SW1, the normal opened contact 3 of its microswitch SW1 disconnects.Because normally opened relay K1 is in closure state, motor and transformer T1 continue electric work.And the dc low-voltage power supply circuits provide high level signal by microswitch SW1 to singlechip chip control port P07.Here explanation is: because therefore the output output DC of dc low-voltage power supply circuits can pass through microswitch SW1, divider resistance R1, R2 and ground connection and constitute the loop; And because L is that therefore it constitutes the loop through normally opened relay K1 and zero line N to alternating current, and can not constitute loop (because not having zero line N herein) by microswitch SW1 and to R1, singlechip chip side, therefore live wire L can not connect with singlechip chip control port P07, guarantees singlechip chip safety.
Enter standby for washing machine two kinds of situations arranged:
A kind of is procedure auto-control: after the program for washing of setting finished, singlechip chip disconnected by drive circuit control normally opened relay K1 according to the EP (end of program) signal that receives, and at this moment, washing machine enters holding state.
Another kind is that the user controls: when program for washing that needs stop to carry out, the user presses microswitch SW1, normal opened contact 3 and its common port 1 closure of microswitch SW1, its normally closed contact 2 disconnects with its common port 1, after the user unclamps microswitch SW1 then, the normal opened contact 3 of microswitch SW1 disconnects with its common port 1, and its normally closed contact 2 is closed once more with its common port 1.The closed link B that makes at divider resistance that switches of the normal opened contact of microswitch SW1 produces square-wave signal, and behind this square-wave signal that singlechip chip control port P07 receives, singlechip chip control normally opened relay K1 disconnects.At this moment, washing machine enters holding state.
As from the foregoing, even the attaching plug of washing machine is inserted on the charged socket always, live wire L continues charged, and when washing machine entered holding state, transformer, motor all disconnected with live wire L, and the singlechip chip that is connected with transformer also cuts off the power supply.Thoroughly the washing machine of the standby of outage does not have power consumption.
The utility model has the advantages that simple in structurely, control is reliable, can be used in other close household electrical appliance of power supply architecture. Use washing machine of the present utility model, can simplify the operation, improve electrical safety, eliminate stand-by electric consumption.
Claims (8)
1. complete machine power-down control device that is used for washing machine, comprise: by the relay (K1) of singlechip chip control driving, it is characterized in that the contact of described relay (K1) is connected in series in the Alternating Current Power Supply major loop of washing machine, the two ends of the contact of relay (K1) connect a switch (SW1).
2. complete machine power-down control device according to claim 1 is characterized in that, described relay (K1) is normally opened relay (K1).
3. complete machine power-down control device according to claim 2 is characterized in that, described switch (SW1) is key switch (SW1).
4. complete machine power-down control device according to claim 3 is characterized in that, two contacts of key switch (SW1) and the contact parallel connection of relay (K1).
5. complete machine power-down control device according to claim 2 is characterized in that, described switch (SW1) is the microswitch (SW1) that has normal opened contact.
6. complete machine power-down control device according to claim 2 is characterized in that, also comprises the drive circuit that is connected with singlechip chip, and the output of this drive circuit links to each other with the drive coil of normally opened relay (K1).
7. complete machine power-down control device according to claim 2 is characterized in that, described singlechip chip is the singlechip chip that has driver, and it directly connects the drive coil of normally opened relay (K1).
8. complete machine power-down control device according to claim 3, it is characterized in that, described key switch (SW1) is for having the microswitch (SW1) of two contacts, one is normally closed contact (2), normally closed contact (2) links to each other with the earth potential of the dc low-voltage power supply circuits of computer plate by the divider resistance (R1, R2) of two series connection, one is normal opened contact (3), the contact parallel connection of normal opened contact (3) and normally opened relay (K1);
The common port (1) of microswitch (SW1) is connected with the contact of normally opened relay (K1), and is connected to form the loop with the output (VCC) of dc low-voltage power supply circuits;
The control port (P07) of the singlechip chip on link (B) and the computer plate of the divider resistance (R1, R2) of series connection is connected, the formation signal transmission loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202175185U CN201546062U (en) | 2009-09-25 | 2009-09-25 | Entire machine power interruption control device for washing machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202175185U CN201546062U (en) | 2009-09-25 | 2009-09-25 | Entire machine power interruption control device for washing machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201546062U true CN201546062U (en) | 2010-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202175185U Expired - Lifetime CN201546062U (en) | 2009-09-25 | 2009-09-25 | Entire machine power interruption control device for washing machines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201546062U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445910A (en) * | 2010-09-30 | 2012-05-09 | 索尼公司 | Power supply control apparatus, electric device, power supply control system, and power supply control method and program |
| CN102505415A (en) * | 2011-10-19 | 2012-06-20 | 合肥荣事达三洋电器股份有限公司 | Control circuit of zero-power-consumption standby of full-automatic washing machine controller and control method thereof |
| CN102535096A (en) * | 2012-02-10 | 2012-07-04 | 深圳市振邦实业有限公司 | Cleaning product, and cleaning control method and cleaning controller for cleaning product |
| CN103668874A (en) * | 2012-09-13 | 2014-03-26 | Lg电子株式会社 | Laundry treating apparatus |
| CN112968514A (en) * | 2020-08-20 | 2021-06-15 | 合肥海尔智能电子有限公司 | Power supply circuit and frequency conversion equipment |
-
2009
- 2009-09-25 CN CN2009202175185U patent/CN201546062U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445910A (en) * | 2010-09-30 | 2012-05-09 | 索尼公司 | Power supply control apparatus, electric device, power supply control system, and power supply control method and program |
| CN102505415A (en) * | 2011-10-19 | 2012-06-20 | 合肥荣事达三洋电器股份有限公司 | Control circuit of zero-power-consumption standby of full-automatic washing machine controller and control method thereof |
| CN102505415B (en) * | 2011-10-19 | 2013-11-27 | 合肥荣事达三洋电器股份有限公司 | Control circuit of zero-power-consumption standby of full-automatic washing machine controller and control method thereof |
| CN102535096A (en) * | 2012-02-10 | 2012-07-04 | 深圳市振邦实业有限公司 | Cleaning product, and cleaning control method and cleaning controller for cleaning product |
| CN102535096B (en) * | 2012-02-10 | 2013-11-27 | 深圳市振邦实业有限公司 | Cleaning product, and cleaning control method and cleaning controller for cleaning product |
| CN103668874A (en) * | 2012-09-13 | 2014-03-26 | Lg电子株式会社 | Laundry treating apparatus |
| CN103668874B (en) * | 2012-09-13 | 2016-02-24 | Lg电子株式会社 | Clothes treatment device |
| US9529399B2 (en) | 2012-09-13 | 2016-12-27 | Lg Electronics Inc. | Laundry treating apparatus |
| CN112968514A (en) * | 2020-08-20 | 2021-06-15 | 合肥海尔智能电子有限公司 | Power supply circuit and frequency conversion equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100811 |