CN1548625A - Up door opening inducing circuit for washer - Google Patents
Up door opening inducing circuit for washer Download PDFInfo
- Publication number
- CN1548625A CN1548625A CNA031236677A CN03123667A CN1548625A CN 1548625 A CN1548625 A CN 1548625A CN A031236677 A CNA031236677 A CN A031236677A CN 03123667 A CN03123667 A CN 03123667A CN 1548625 A CN1548625 A CN 1548625A
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- upward
- acting door
- washing machine
- sensor circuit
- door sensor
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Abstract
The up door opening inducing circuit for washer includes one switch unit to send out the door opening signal; AC power supply; motor for completing action based on the input command; microcomputer to control driving; and stabilizing device connected between the power supply and the microcomputer to judge the opening state smoothly. The stabilizing device consists of vibrator and the switch unit, so that the up door opening inducing circuit can judge the up door opening state to ensure the use safety.
Description
Technical field
The present invention relates to a kind of upward-acting door sensor circuit that washs the washing machine in field, particularly relate to the washing machine upward-acting door sensor circuit (DOORDETECTING CIRCUIT OF WASHING MACHINE) that carries out the upward-acting door switching function in a kind of effective and safe more ground.
Background technology
Washing machine is according to predefined program, washs, process such as rinsing, dehydration, thereby removes the mechanical device of the dirt on the washings.
Fig. 1 is the structure chart of existing washing machine.As shown in Figure 1, general washing machine is by forming as the lower part: the upward-acting door 2 that is positioned at body of the washing machine casing 1 upper end and can opens and closes; Be positioned at the aforementioned body enclosure and for can the splendid attire washings, its top be opening shape, and the outer bucket 5 of the drive division of being made up of motor 3 and clutch 4 is installed in its underpart; It is inboard and for by above-mentioned upward-acting door 2 input washings to be positioned at above-mentioned outer bucket, its top is opening shape, and in dehydration, by motor 3 and clutch 3 drive carry out the center of circle rotate at a high speed and carry out dehydration and within it side periphery be formed with interior bucket (or drench pit) 6 of a plurality of apertures; Be positioned at above-mentioned bucket inside bottom surface, and in washing process, be subjected to the driving force of motor 3 and clutch 4 and stir the agitator 7 of action about carrying out.
The general washing process of washing machine with said structure is as follows: after Water filling valve (not marking in the drawings) open, by above-mentioned Water filling valve, washings were injected into the interior certain water level of outer bucket 5; Then, agitator 7 carries out the stirring action of left and right directions; The current that stirring produced by above-mentioned agitator 7 carry out mutual friction mutually with washings, thereby begin to carry out washing process.
After above-mentioned all washing process were finished, draining pump 8 was discharged to used washings the outside of washing machine; And after all washings being discharged to the outside, last, interior bucket 6 carries out the high speed rotation, carries out dehydration work.So just finish whole washing process.
In addition, the upward-acting door opening and closing structure of above-mentioned washing machine, can be installed in rotatably above-mentioned body of the washing machine shell 1 above, and the user rotates up by catching the handle (not marking in the drawings) that is positioned at above-mentioned upward-acting door 2 one sides, thereby can open above-mentioned upward-acting door 2.
On above-mentioned washing machine, if in washing machine work, upward-acting door 2 is unlocked, and washings and washings in being contained in the bucket 6 can discharge or eject, and therefore, check that all the time whether upward-acting door is closed tight is a very important thing.
Fig. 2 is the upward-acting door sensor circuit of existing washing machine.As shown in Figure 2, judge that sensor circuit that whether above-mentioned upward-acting door 2 open and close is by forming as the lower part: according to the switching of the upward-acting door switching device 10 of switching signal whether; Power suppling part 20; According to the action command of input, control motor or load drive, and make it can finish the micro computer portion 30 of washing action.Upward-acting door in mark 40 presentation graphs 1.
Below, with reference to the movement oscillogram of figure 3, the operation principle of Fig. 2 circuit is described:
At first, if upward-acting door 40 is in closure state, above-mentioned switch 10 is unlocked, and the alternating voltage of the 5V that power suppling part 20 is provided will fall back to earthing potential.Like this, the signal that is input to micro computer portion 30 is that ＂ is low " voltage of shape, micro computer portion 30 just can judge that upward-acting door 40 is in closure state now, thus the control corresponding action.
Then, if upward-acting door 40 is in opening, above-mentioned switch 10 is closed, and the alternating voltage of the 5V that power suppling part 20 is provided will be directly inputted to micro computer portion 30, micro computer portion 30 just can judge that upward-acting door 40 is in opening now, thus the control corresponding action.
But, on upward-acting door sensor circuit 50,,, also may obtain the judgement that upward-acting door 40 is closed even upward-acting door is in opening 40 if micro computer portion 30 burns or fuse is blown according to prior art; Also can when above-mentioned upward-acting door 40 is in closure state, obtain the judgement that above-mentioned upward-acting door 40 is opened, thereby cause the action of washing machine mistake.
This shows that the upward-acting door sensor circuit of above-mentioned existing washing machine still has many defectives, and demands urgently further being improved.
The problem that exists for the upward-acting door sensor circuit that solves above-mentioned washing machine, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.
Because the defective that the upward-acting door sensor circuit of above-mentioned existing washing machine exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, actively studied innovation, upward-acting door sensor circuit in the hope of the washing machine of founding a kind of new structure, can improve the general upward-acting door sensor circuit structure of the washing machine of existing routine on the market, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
Main purpose of the present invention is, overcome the defective of the upward-acting door sensor circuit existence of existing washing machine, and a kind of upward-acting door sensor circuit of washing machine of new structure, technical problem underlying to be solved are provided is to make it judge the upward-acting door open and-shut mode in effective and safe ground more.
Purpose of the present invention and to solve its technical problem underlying be to adopt following technical scheme to realize.The upward-acting door sensor circuit of the washing machine that proposes according to the present invention, it comprises: according to the switching of the upward-acting door switching device of switching signal whether; The power suppling part of AC power is provided; Carry out the motor of corresponding washing action according to the action command of input; The micro computer portion that the control load drives; Wherein between described power suppling part and micro computer portion, be connected with and steadily judge the stabilising arrangement whether upward-acting door opens and closes.
The object of the invention to solve the technical problems can also be further achieved by the following technical measures.
The upward-acting door sensor circuit of aforesaid washing machine, wherein said stabilising arrangement comprise that whether pulse generating unit and control change over the pulse signal that above-mentioned pulse generating unit produced the switching device of earthing potential.
The upward-acting door sensor circuit of aforesaid washing machine, wherein said pulse generating unit is made up of oscillator.
The upward-acting door sensor circuit of aforesaid washing machine, wherein said switching device is made up of field-effect transistor.
The upward-acting door sensor circuit of aforesaid washing machine, the base stage of wherein said field-effect transistor is connected in above-mentioned power suppling part, and its colelctor electrode is connected in above-mentioned pulse generating unit, its grounded emitter.
The present invention compared with prior art has tangible advantage and beneficial effect.
By above technical scheme as can be known, the present invention includes according to the switching of the upward-acting door switching device of switching signal whether; The power suppling part of AC power is provided; Carry out the motor of corresponding washing action according to the action command of input; The micro computer portion that the control load drives; Wherein between described power suppling part and micro computer portion, be connected with and steadily judge the stabilising arrangement whether upward-acting door opens and closes.
Above-mentioned according to washing machine upward-acting door sensor circuit of the present invention, have following effect.
Because be provided with the stabilising arrangement of being made up of oscillator and switching device in the upward-acting door sensor circuit, therefore, therefore whether the switching of can effective and safe ground judging upward-acting door, can improve user's the sense of security.
In sum, the upward-acting door sensor circuit of the washing machine of special construction of the present invention, have above-mentioned many advantages and practical value, and in like product, do not see have similar structural design to publish or use, no matter and its structurally or bigger improvement is all arranged on the function, have large improvement technically, and produced handy and practical effect, and have the effect of enhancement really, thus be suitable for practicality more, really be a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is existing washing machine structure figure.
Fig. 2 is the upward-acting door sensor circuit of existing washing machine.
Fig. 3 is the movement oscillogram of Fig. 2.
Fig. 4 is the circuit diagram of the washing machine upward-acting door sensor circuit of one embodiment of the present of invention.
Fig. 5 is the movement oscillogram of the washing machine upward-acting door sensor circuit of one embodiment of the present of invention.
1 ... casing 2 ... upward-acting door
3 ... motor 4 ... clutch
5 ... outer bucket 6 ... interior bucket
7 ... agitator 8 ... draining pump
10 ... switching device 20 ... power suppling part
30 ... micro computer portion 40 ... upward-acting door
60 ... switching device 70 ... power suppling part
80 ... micro computer portion 90 ... stabilising arrangement
91 ... pulse generating unit 95 ... switching device
97 ... ground connection
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment, its specific embodiment of upward-acting door sensor circuit, structure, feature and the effect thereof of the washing machine that foundation the present invention is proposed, describe in detail as after.
See also Fig. 4, shown in Figure 5, Fig. 4 is the circuit diagram of the washing machine upward-acting door sensor circuit of one embodiment of the present of invention, and Fig. 5 is the movement oscillogram of the washing machine upward-acting door sensor circuit of one embodiment of the present of invention.
As shown in Figure 4, upward-acting door sensor circuit according to the present invention is by forming as the lower part: according to the switching of the upward-acting door switching device 60 of switching signal whether; The power suppling part 70 of AC power is provided; Control the micro computer portion 80 of the driving of motor or load according to the action command of input; Be connected between above-mentioned power suppling part and the micro computer portion and also can steadily judge the stabilising arrangement 90 whether upward-acting door opens and closes.
The pulse signal whether aforementioned stable device 90 is produced above-mentioned pulse generating unit 91 by pulse generating unit 91 and control changes over the switching device 95 of earthing potential and forms.And above-mentioned pulse generating unit 91 is made as suitable by oscillator (Oscillator).
In addition, above-mentioned switching device 95 is made up of triode, and the base stage of above-mentioned triode (Gate) is connected in above-mentioned power suppling part 70; Colelctor electrode (Collector) is connected in above-mentioned pulse generating unit 91; Emitter stage (Emitter) ground connection.
Below, with reference to the movement oscillogram of figure 5, the operation principle according to upward-acting door sensor circuit of the present invention with said structure is described in detail.
At first, if upward-acting door is in closure state, above-mentioned switch 60 is unlocked, and the alternating voltage of the 5V that power suppling part 70 is provided will fall back to earthing potential.This earthing potential is input to the base stage of above-mentioned switching device 95, and at this moment, because above-mentioned switching device 95 is closed, therefore, according to pulse generating unit 91, pulse signal is input to above-mentioned micro computer portion 80.Here, if the stitch of micro computer portion 80 (Pin) short circuit, the input of micro computer portion 80 becomes the pulse signal of height-low shape, therefore, and can be other with normal waveform phase region.So more effective and safe is responded to.
Below, compare with above-mentioned upward-acting door sensor circuit according to prior art, upward-acting door sensor circuit of the present invention is described in detail.
In the upward-acting door sensor circuit of prior art, if the stitch short circuit of micro computer, the signal that is input to micro computer portion becomes low shape, and the state of its judgement is that upward-acting door is closed, and therefore, even upward-acting door is opened, the conclusion that obtains is still closed for upward-acting door.
But in upward-acting door sensor circuit of the present invention, if upward-acting door is closed, the pulse signal that is input to micro computer portion 80 becomes height-low shape.That is to say that if upward-acting door is closed, switching device 70 is in unlatching; At this moment, the switching device 95 of stabilising arrangement 90 is closed, and the output of oscillator is input to micro computer portion 80.This waveform is different from normal spherical wave pulse fully.
At this moment, if the input of micro computer portion 80 still keeps low state, just illustrate that the stitch of micro computer portion occurs therefore, sending error message unusually in 5V short circuit or circuit.
In addition, at this moment, if the input of micro computer portion 80 still keeps low state, the stitch that micro computer portion just is described is in the 0V short circuit or circuit occurs unusual or the user opens upward-acting door all the time; Though can not distinguish this,, can send the ＂ upward-acting door and open in line with the principle of safety first " error message.
According to these principles, therefore whether the switching of can effective and safe ground judging upward-acting door, can improve user's the sense of security.
The technological innovation of the upward-acting door sensor circuit of the washing machine of the present invention that above-mentioned structure like this constitutes all has many saving graces for technical staff of the same trade now, and the progressive that possesses skills really.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, any those skilled in the art may utilize the method for above-mentioned announcement and the equivalent embodiment that technology contents was changed or be modified to equivalent variations, but every technical solution of the present invention content that do not break away from,, all still belong in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (5)
1, a kind of upward-acting door sensor circuit of washing machine, it comprises according to the switching of the upward-acting door switching device of switching signal whether; The power suppling part of AC power is provided; Carry out the motor of corresponding washing action according to the action command of input; And the micro computer portion of control load driving; It is characterized in that: between described power suppling part and micro computer portion, be connected with and steadily judge the stabilising arrangement whether upward-acting door opens and closes.
2, the upward-acting door sensor circuit of washing machine according to claim 1 is characterized in that wherein said stabilising arrangement comprises that whether pulse generating unit and control change over the pulse signal that above-mentioned pulse generating unit produced the switching device of earthing potential.
3, the upward-acting door sensor circuit of washing machine according to claim 2 is characterized in that wherein said pulse generating unit is made up of oscillator.
4, the upward-acting door sensor circuit of washing machine according to claim 2 is characterized in that wherein said switching device is made up of field-effect transistor.
5, the upward-acting door sensor circuit of washing machine according to claim 4 is characterized in that the control utmost point of wherein said field-effect transistor is connected in above-mentioned power suppling part, and its colelctor electrode is connected in above-mentioned pulse generating unit, its grounded emitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031236677A CN1548625A (en) | 2003-05-12 | 2003-05-12 | Up door opening inducing circuit for washer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031236677A CN1548625A (en) | 2003-05-12 | 2003-05-12 | Up door opening inducing circuit for washer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1548625A true CN1548625A (en) | 2004-11-24 |
Family
ID=34321414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031236677A Pending CN1548625A (en) | 2003-05-12 | 2003-05-12 | Up door opening inducing circuit for washer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1548625A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024306A (en) * | 2010-10-29 | 2011-04-20 | 海尔集团公司 | Detection circuit for washing machine door cover |
| CN104278482A (en) * | 2014-09-15 | 2015-01-14 | 合肥荣事达三洋电器股份有限公司 | Door opening power-on circuit and washing machine using circuit |
| CN106676831A (en) * | 2015-11-11 | 2017-05-17 | 无锡小天鹅股份有限公司 | Washing machine door lock state detecting method and system and washing machine |
| CN107187419A (en) * | 2017-05-18 | 2017-09-22 | 鞍山科大物联科技有限公司 | A kind of automobile door lock status identification means and recognition methods |
| CN109477280A (en) * | 2016-07-19 | 2019-03-15 | Bsh家用电器有限公司 | Gatekeeper slowdown monitoring circuit for household appliance |
-
2003
- 2003-05-12 CN CNA031236677A patent/CN1548625A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024306A (en) * | 2010-10-29 | 2011-04-20 | 海尔集团公司 | Detection circuit for washing machine door cover |
| CN102024306B (en) * | 2010-10-29 | 2016-04-27 | 海尔集团公司 | A kind of detection circuit for washing machine door cover |
| CN104278482A (en) * | 2014-09-15 | 2015-01-14 | 合肥荣事达三洋电器股份有限公司 | Door opening power-on circuit and washing machine using circuit |
| CN106676831A (en) * | 2015-11-11 | 2017-05-17 | 无锡小天鹅股份有限公司 | Washing machine door lock state detecting method and system and washing machine |
| CN106676831B (en) * | 2015-11-11 | 2019-04-16 | 无锡小天鹅股份有限公司 | Door lock state detection method, system and the washing machine of washing machine |
| CN109477280A (en) * | 2016-07-19 | 2019-03-15 | Bsh家用电器有限公司 | Gatekeeper slowdown monitoring circuit for household appliance |
| CN109477280B (en) * | 2016-07-19 | 2021-02-02 | Bsh家用电器有限公司 | Door monitoring circuit for household appliance |
| CN107187419A (en) * | 2017-05-18 | 2017-09-22 | 鞍山科大物联科技有限公司 | A kind of automobile door lock status identification means and recognition methods |
| CN107187419B (en) * | 2017-05-18 | 2023-08-08 | 辽宁科大物联科技有限公司 | Automobile door lock state identification device and identification method |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |