CN104342876A - Washing machine capable of detecting cylinder collision by using water level sensor and detection method - Google Patents
Washing machine capable of detecting cylinder collision by using water level sensor and detection method Download PDFInfo
- Publication number
- CN104342876A CN104342876A CN201310344402.9A CN201310344402A CN104342876A CN 104342876 A CN104342876 A CN 104342876A CN 201310344402 A CN201310344402 A CN 201310344402A CN 104342876 A CN104342876 A CN 104342876A
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- China
- Prior art keywords
- level sensor
- washing machine
- button
- circuit
- contact switch
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/087—Water level measuring or regulating devices
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- D06F2202/085—
-
- D06F2204/10—
-
- D06F2222/00—
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
The invention discloses a washing machine capable of detecting the cylinder collision by using a water level sensor and a detection method. The water level sensor comprises a vibration generation circuit as well as a contact switch, wherein the vibration generation circuit comprises an LC oscillation circuit and a control end detection circuit which are connected in series; the contact switch is connected parallel to the LC oscillation circuit. According to the overall washing machine, a cylinder collision switch is not needed, a circuit for controlling the control end detection switch to be powered on or powered off is also not needed, and the cylinder collision information is judged according to the output frequency of the water level sensor. If the frequency is in normal output (not equal to 0Hz), a washing machine cylinder is not collided, and if the frequency output is 0Hz, the washing machine cylinder is collided. The cylinder collision switch and the water level sensor are integrated and share a detection circuit and a connection lead, so that the modulation degree of the overall washing machine is improved, the production cost of the washing machine is reduced, and the reject ratio is reduced.
Description
Technical field
The present invention relates to washing machine and hit a barrel infomation detection field, particularly relate to a kind of washing machine and the detection method that utilize level sensor to detect barrel information of hitting.
Background technology
Conventional washer comprises independent one and hits a barrel switch, a level sensor, level sensor and hit barrel switch for independently device, a barrel information is hit by hitting barrel switch to detect, namely whether clothing is put partially, needs independent testing circuit in control circuit board, needs independent connection wire; The detection of water level is carried out by level sensor.
Fig. 1 is the structural representation hitting barrel information detector in prior art, as shown in Figure 1, the checkout gear hitting barrel information is made up of the contact switch be in series and control end testing circuit, whether hit bucket needs control end testing circuit whether to judge by detecting the break-make of hitting barrel switch 11, needs independent testing circuit.
Fig. 2 is the structural representation of prior art middle water level sensor, as shown in Figure 2, level sensor shakes loop by a LC oscillator 13 and control end testing circuit 12 LC that is in series, LC oscillator 13 is made up of a coil 131 and the parallel connection of an electric capacity 132, is received and detect the output frequency signal of LC oscillator 13 by control end testing circuit 12.
Because the checkout gear and level sensor that hit barrel signal in prior art are provided separately, and each device all needs independent to arrange testing circuit, and cause complete machine cost high, complete machine fraction defective raises.
For above description, need badly and want a kind of level sensor that utilizes newly to detect washing machine and the detection method of barrel information of hitting.
Summary of the invention
The object of the present invention is to provide a kind of washing machine utilizing level sensor to detect barrel information of hitting, barrel information detector is hit and level sensor becomes one in this washing machine, share testing circuit, share and connect wire, the washing machine complete machine degree of modularity is improved.
Reduce washing machine production cost simultaneously, reduce fraction defective.
Another object of the present invention there are provided a kind of detection method utilizing level sensor to detect barrel information of hitting, the method judges to hit a barrel information by level sensor output frequency, when level sensor output frequency is unstable, judge that vibration of washing machine is large, hit bucket, the method makes the washing machine complete machine degree of modularity improve.
The method also reduces washing machine production cost simultaneously, reduces fraction defective.
For reaching this object, the present invention by the following technical solutions:
A kind of washing machine utilizing level sensor to detect barrel information of hitting, described level sensor comprises sends out the circuit that shakes, described the circuit that shakes comprises the LC oscillating circuit and control end testing circuit that are in series, and described level sensor also comprises contact switch, and described contact switch and LC oscillating circuit are in parallel.
As preferably, described level sensor also comprises button, and described button coordinates with contact switch, and when a button is pressed, contact switch is opened, and when push-button reset, contact switch closes.
As preferably, the described washing machine utilizing level sensor to detect barrel information of hitting also comprises control lever, and described control lever is positioned at button place, can press or leave button.
As preferably, described shake circuit and contact switch are integrated on same circuit board.
As preferably, described LC oscillating circuit comprises the oscillator capacitance C and inductance of oscillator L that are in parallel.
As preferably, described inductance of oscillator L comprises coil rack and is wound on the coil on coil rack, and described coil rack is built with magnetic core.
As preferably, described coil rack central through hole is built with a magnetic core cover, and described magnetic core is arranged in this magnetic core cover, and described magnetic core cover is slidably matched with described coil rack central through hole.
Utilize level sensor to detect a detection method for barrel information of hitting, comprise the following steps:
S101, control end testing circuit measure the frequency of LC oscillator output signal;
Whether S102, the frequency judging LC oscillator output signal are 0Hz, if be 0Hz, then judge that washing machine hits bucket; If be not 0Hz, then judge that washing machine does not hit bucket.
As preferably, before step S101, further comprising the steps of:
Opening of contact switch is controlled by pressing down of button;
Or control the closed of contact switch by the reset of button.
As preferably, pressed the button by control lever; Or leave button, make push-button reset.
Beneficial effect of the present invention is: the invention provides a kind of washing machine and the detection method that utilize level sensor to detect barrel information of hitting, described level sensor comprises sends out the circuit that shakes, described the circuit that shakes comprises the LC oscillating circuit and control end testing circuit that are in series, described level sensor also comprises contact switch, and described contact switch and LC oscillating circuit are in parallel.Hit a barrel switch because complete machine in this programme removes, remove the circuit of control end sense switch through and off simultaneously, hit barrel switch and level sensor becomes one, share testing circuit, share and connect wire, judge to hit a barrel information by the output frequency of level sensor, if frequency normally exports (being not equal to 0Hz), be judged to not hit bucket, if rate-adaptive pacemaker is 0Hz, be then judged to be that washing machine hits bucket, so make the washing machine complete machine degree of modularity improve, reduce washing machine production cost, reduce fraction defective.
Accompanying drawing explanation
Fig. 1 is the structural representation hitting barrel information detector in prior art;
Fig. 2 is the structural representation of prior art middle water level sensor;
Fig. 3 is the structural representation with the level sensor hitting barrel information detection functions that the specific embodiment of the invention provides;
Fig. 4 is that the level sensor that utilizes that the specific embodiment of the invention provides detects the method flow diagram of barrel information of hitting;
Fig. 5 is that the level sensor that utilizes that the specific embodiment of the invention provides detects the method flow diagram hitting a kind of preferred version of barrel information.
Wherein:
11: hit a barrel switch; 12: control end testing circuit; 13:LC oscillator;
131: coil; 132: electric capacity;
21: control end testing circuit; 22:LC oscillating circuit;
211: oscillator capacitance C; 212: inductance of oscillator L; 213: contact switch.
Detailed description of the invention
Technical scheme of the present invention is further illustrated by detailed description of the invention below in conjunction with accompanying drawing.
Device embodiment:
Fig. 3 is the structural representation with the level sensor hitting barrel information detection functions that the specific embodiment of the invention provides.As shown in Figure 3, this utilizes level sensor to detect the washing machine of barrel information of hitting, described level sensor comprises sends out the circuit that shakes, described the circuit that shakes comprises the LC oscillating circuit 22 and control end testing circuit 21 that are in series, described level sensor also comprises contact switch 213, and described contact switch 213 is in parallel with LC oscillating circuit 22.
This programme complete machine eliminates and hits a barrel switch, removes the circuit of control end sense switch through and off simultaneously, and in original water level sensor circuit, add a contact switch.Hit barrel switch and level sensor becomes one, share testing circuit, share and connect wire, the complete machine degree of modularity is improved, reduce the manufacturing cost of washing machine, reduction fraction defective.
This programme judges to hit a barrel information by the balance of washing machine, when level sensor output frequency is unstable, judges that vibration of washing machine is large, hits bucket.Concrete, by using the frequency detection circuit of former level sensor, judge to hit a barrel information.When contact switch 213 disconnects, the branch road at LC oscillating circuit 22 place is connected, and now, the frequency of LC oscillating circuit 22 normally exports (being not equal to 0Hz), is judged to not hit bucket; When contact switch 213 closes, the branch road at contact switch 213 place is connected, and now, the rate-adaptive pacemaker of LC oscillating circuit 22 is 0Hz, be then judged to be that washing machine hits bucket, and complete machine can carry out washing correction according to the program set.
In the present embodiment, as preferably, described level sensor is also provided with button, described button coordinates with contact switch 213, and when a button is pressed, contact switch 213 is opened, and when push-button reset, contact switch 213 closes.Be provided with control lever in washing machine, control lever is positioned at button place, can press or leave button.
When washing machine does not hit barrel, button is pushed down by the control lever of complete machine, and contact is in normally open, and now circuit is identical with original water level sensor circuit, and level sensor can normally export stagefrequency signal; When to hit barrel, control lever leaves button, the closing of contact, and sensor output frequency signal is 0Hz, and complete machine judges to hit bucket.
In the present embodiment, preferably, described shake circuit and contact switch 213 are integrated on same circuit board, and this circuit board is arranged in level sensor.
In the present embodiment, preferably, described LC oscillating circuit 22 comprises the oscillator capacitance C211 and inductance of oscillator L212 that are in parallel.
In the present embodiment, preferably, described inductance of oscillator L212 comprises coil rack and is wound on the coil on coil rack, and described coil rack is built with magnetic core.
In the present embodiment, preferably, described coil rack central through hole is built with a magnetic core cover, and described magnetic core is arranged in this magnetic core cover, and described magnetic core cover is slidably matched with described coil rack central through hole.
LC oscillating circuit 22 is to control end testing circuit output signal, and control end testing circuit judges the signal frequency that LC oscillating circuit 22 exports, and then judges whether washing machine hits bucket.
Embodiment of the method:
Fig. 4 is that the level sensor that utilizes that the specific embodiment of the invention provides detects the method flow diagram of barrel information of hitting, and as shown in Figure 4, the detection method utilizing level sensor to detect barrel information of hitting comprises the following steps:
S101, control end testing circuit measure the frequency of LC oscillator output signal.
S102, control end testing circuit judge whether the frequency of LC oscillator output signal is 0Hz, if be 0Hz, then judge that washing machine hits bucket; If be not 0Hz, then judge that washing machine does not hit bucket.
Introduce the detection method utilizing level sensor to detect barrel information of hitting in detail below in conjunction with Fig. 5, Fig. 5 is that the level sensor that utilizes that the specific embodiment of the invention provides detects the method flow diagram hitting a kind of preferred version of barrel information.Comprise the following steps:
S201, vary in size according to the vibrations of washing machine, it is also different to hit barrel situation, and according to whether hitting bucket, control lever is pressed or left button.
When S202, control lever press the button, contact switch is opened; When control lever leaves button, contact switch closes.
S203, to open or under closed different conditions, LC oscillator exports the signal of different frequency to control end testing circuit at contact switch.
S204, control end testing circuit measure the frequency of LC oscillator output signal.
S205, control end testing circuit judge whether the frequency of LC oscillator output signal is 0Hz, if be 0Hz, then judge that washing machine hits bucket; If be not 0Hz, then judge that washing machine does not hit bucket.
Below know-why of the present invention is described in conjunction with specific embodiments.These describe just in order to explain principle of the present invention, and can not be interpreted as limiting the scope of the invention by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other detailed description of the invention of the present invention, and these modes all will fall within protection scope of the present invention.
Claims (10)
1. the washing machine utilizing level sensor to detect barrel information of hitting, described level sensor comprises sends out the circuit that shakes, described the circuit that shakes comprises the LC oscillating circuit (22) and control end testing circuit (21) that are in series, it is characterized in that, described level sensor also comprises contact switch (213), and described contact switch (213) and LC oscillating circuit (22) are in parallel.
2. the washing machine utilizing level sensor to detect barrel information of hitting according to claim 1, it is characterized in that, described level sensor also comprises button, described button coordinates with contact switch (213), when a button is pressed, contact switch (213) is opened, and when push-button reset, contact switch (213) closes.
3. the washing machine utilizing level sensor to detect barrel information of hitting according to claim 2, it is characterized in that, also comprise control lever, described control lever is positioned at button place, can press or leave button.
4. according to claim 2ly utilize level sensor to detect to hit the washing machine of barrel information, it is characterized in that, described shake circuit and contact switch (213) are integrated on same circuit board.
5. the washing machine utilizing level sensor to detect barrel information of hitting according to claim 1, it is characterized in that, described LC oscillating circuit (22) comprises the oscillator capacitance C(211 be in parallel) and inductance of oscillator L(212).
6. the washing machine utilizing level sensor to detect barrel information of hitting according to claim 5, is characterized in that, described inductance of oscillator L(212) comprise coil rack and be wound on the coil on coil rack, described coil rack is built with magnetic core.
7. the washing machine utilizing level sensor to detect barrel information of hitting according to claim 6, it is characterized in that, described coil rack central through hole is built with a magnetic core cover, and described magnetic core is arranged in this magnetic core cover, and described magnetic core cover is slidably matched with described coil rack central through hole.
8. utilize level sensor to detect a detection method for barrel information of hitting, it is characterized in that, comprise the following steps:
S101, control end testing circuit measure the frequency of LC oscillator output signal;
Whether S102, the frequency judging LC oscillator output signal are 0Hz, if be 0Hz, then judge that washing machine hits bucket; If be not 0Hz, then judge that washing machine does not hit bucket.
9. the detection method utilizing level sensor to detect barrel information of hitting according to claim 8, is characterized in that, before step S101, further comprising the steps of:
Opening of contact switch is controlled by pressing down of button;
Or control the closed of contact switch by the reset of button.
10. the detection method utilizing level sensor to detect barrel information of hitting according to claim 9, is characterized in that,
Pressed the button by control lever; Or leave button, make push-button reset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310344402.9A CN104342876A (en) | 2013-08-08 | 2013-08-08 | Washing machine capable of detecting cylinder collision by using water level sensor and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310344402.9A CN104342876A (en) | 2013-08-08 | 2013-08-08 | Washing machine capable of detecting cylinder collision by using water level sensor and detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104342876A true CN104342876A (en) | 2015-02-11 |
Family
ID=52499290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310344402.9A Pending CN104342876A (en) | 2013-08-08 | 2013-08-08 | Washing machine capable of detecting cylinder collision by using water level sensor and detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104342876A (en) |
Citations (13)
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|---|---|---|---|---|
| JPH0994380A (en) * | 1995-09-29 | 1997-04-08 | Matsushita Electric Ind Co Ltd | Washing machine |
| JPH11309293A (en) * | 1998-04-28 | 1999-11-09 | Hitachi Ltd | Washing machine |
| CN1241658A (en) * | 1998-07-14 | 2000-01-19 | Lg电子株式会社 | Method for sensing water level and vibration of washing mahcine and apparatus therefor |
| KR20010049030A (en) * | 1999-11-30 | 2001-06-15 | 구자홍 | Device for sensing a water level and vibration-quantity in a drum-washer and Methode for controlling driving-unit by this device |
| CN1357742A (en) * | 2000-12-07 | 2002-07-10 | 卓科株式会社 | Multifunctional displacement sensor |
| JP2002292180A (en) * | 2001-03-29 | 2002-10-08 | Nippon Kentetsu Co Ltd | Dehydration control method for washing machine |
| JP2003334396A (en) * | 2002-05-21 | 2003-11-25 | Hitachi Home & Life Solutions Inc | Washing machine |
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| CN1544744A (en) * | 2003-11-17 | 2004-11-10 | 海尔集团公司 | Full-automatic washing machine washing process |
| CN1833064A (en) * | 2003-04-22 | 2006-09-13 | 夏普株式会社 | Washing machine |
| CN201084562Y (en) * | 2007-09-03 | 2008-07-09 | 宜兴市明圆塑料电器有限公司 | Washing machine safety switch |
| KR20120058800A (en) * | 2010-11-30 | 2012-06-08 | 우성알앤디 주식회사 | Sensor switch |
| CN102560964A (en) * | 2011-12-30 | 2012-07-11 | 海尔集团公司 | Dewatering unbalance correction method for washing machine |
-
2013
- 2013-08-08 CN CN201310344402.9A patent/CN104342876A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0994380A (en) * | 1995-09-29 | 1997-04-08 | Matsushita Electric Ind Co Ltd | Washing machine |
| JPH11309293A (en) * | 1998-04-28 | 1999-11-09 | Hitachi Ltd | Washing machine |
| CN1241658A (en) * | 1998-07-14 | 2000-01-19 | Lg电子株式会社 | Method for sensing water level and vibration of washing mahcine and apparatus therefor |
| KR20010049030A (en) * | 1999-11-30 | 2001-06-15 | 구자홍 | Device for sensing a water level and vibration-quantity in a drum-washer and Methode for controlling driving-unit by this device |
| CN1357742A (en) * | 2000-12-07 | 2002-07-10 | 卓科株式会社 | Multifunctional displacement sensor |
| JP2002292180A (en) * | 2001-03-29 | 2002-10-08 | Nippon Kentetsu Co Ltd | Dehydration control method for washing machine |
| JP2003334396A (en) * | 2002-05-21 | 2003-11-25 | Hitachi Home & Life Solutions Inc | Washing machine |
| CN1465961A (en) * | 2002-07-05 | 2004-01-07 | 乐金电子(天津)电器有限公司 | Water level and vibration detection sensor for washing machine |
| CN1833064A (en) * | 2003-04-22 | 2006-09-13 | 夏普株式会社 | Washing machine |
| CN1544744A (en) * | 2003-11-17 | 2004-11-10 | 海尔集团公司 | Full-automatic washing machine washing process |
| CN201084562Y (en) * | 2007-09-03 | 2008-07-09 | 宜兴市明圆塑料电器有限公司 | Washing machine safety switch |
| KR20120058800A (en) * | 2010-11-30 | 2012-06-08 | 우성알앤디 주식회사 | Sensor switch |
| CN102560964A (en) * | 2011-12-30 | 2012-07-11 | 海尔集团公司 | Dewatering unbalance correction method for washing machine |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160617 Address after: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Applicant after: Qingdao Haier Washing Machine Co., Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Applicant before: haier group corporation Applicant before: Qingdao Haier Washing Machine Co., Ltd. |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150211 |