CN104790179B - Washing machine and its carry out shock detection, load weigh, the method for cloth quality detection - Google Patents
Washing machine and its carry out shock detection, load weigh, the method for cloth quality detection Download PDFInfo
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- CN104790179B CN104790179B CN201410027868.0A CN201410027868A CN104790179B CN 104790179 B CN104790179 B CN 104790179B CN 201410027868 A CN201410027868 A CN 201410027868A CN 104790179 B CN104790179 B CN 104790179B
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Abstract
The invention discloses a kind of washing machines, including controller, gravity photoelectric sensor, shell, positioned at the enclosure interior outer barrel component and be used to support the supporting member of said tub component, the controller is fixed on the housing, the gravity photoelectric sensor is electrically connected with the controller, force signal for detecting the supporting member, the gravity photoelectric sensor includes spring, signal transmitting terminal and signal receiving end, spring is connected with the supporting member, signal transmitting terminal is for emitting optical signal, and signal receiving end is for receiving optical signal.The invention discloses shock detection method, load weighing method and the cloth detection methods for above-mentioned washing machine.Not only shock detection is very sensitive for washing machine provided by the invention, and load weigh it is accurate reliable, and after it is used cooperatively with water level sensor, moreover it is possible to realize that the cloth quality detection of load and water inlet accurately control function.
Description
Technical field
The present invention relates to a kind of washing machine and this washing machines to carry out shock detection, load is weighed and cloth quality detection
Method.
Background technology
Washing machine is in actual use, it will usually cloth and quantity mismatch of vibrations, inflow and clothing etc. occurs
Problem.Wherein, vibrations are not only to bring noise, but also washing machine is caused to hit bucket since the bias of the loads such as clothing causes,
Damage washing machine.And water can then be caused to be excessively used for the cloth and quantity of inflow and clothing mismatch or inflow is insufficient, water
The waste of water resource can be caused by being excessively used, and inflow deficiency can then influence the cleannes of clothing.
Chinese patent literature publication number CN200985445Y discloses a kind of laundry controlling water level using gravity sensor
Machine, by gravity sensor be mounted on washing machine on, the variation of water level of washing machine causes weight change, to make gravity sensor by
To different pressures, resistance value is with the variation of pressure and linear change is reached by electronic program controller to signal processing
To the effect of control water level.The gravity sensor of this control water level is usually simple in structure, and measurement accuracy is limited, is only capable of realization pair
The substantially control of water level, and be difficult to the occasion for applying to need accurate weight measurement and weight change amount, by above-mentioned general
Logical gravity sensor will realize that the functions such as the shock detection of washing machine and accurate control water are very difficult.
Invention content
In order to overcome the deficiencies of existing technologies, technical problem to be solved of the invention is to propose a kind of washing machine,
Not only shock detection is very sensitive, and load weigh it is accurate reliable, and after it is used cooperatively with water level sensor, moreover it is possible to real
The cloth quality detection now loaded accurately controls function with water inlet.
For this purpose, the present invention uses following technical scheme：
The present invention provides a kind of washing machine, including controller, shell, positioned at the enclosure interior outer barrel component and
It is used to support the supporting member of said tub component, further includes the gravity photoelectricity changed for detecting the stress of the supporting member
Sensor, the gravity photoelectric sensor are electrically connected with the controller.
The further technical solution of the present invention：The gravity photoelectric sensor includes：
Spring is connected with the supporting member, and the length variation of the spring is in the power variation on the supporting member
Positive correlation.
Signal transmitting terminal, for emitting optical signal.
Signal receiving end, for receiving optical signal.
The further technical solution of the present invention：The signal transmitting terminal, the signal receiving end are located at the spring
Not homonymy.
The further technical solution of the present invention：The signal transmitting terminal, the signal receiving end are located at the same of the spring
Side.
The further technical solution of the present invention：The supporting member is sunpender, one end and the said tub portion of the sunpender
Part is connected, and the other end is connected with the shell, and the gravity photoelectric sensor is arranged in the sunpender and said tub component
Junction or the sunpender and the shell junction.
The invention also discloses a kind of shock detection methods for above-mentioned washing machine, implement as follows：
S00：Default optical signal limiting value dlim。
S01：The weight change for detecting said tub component in real time by the gravity photoelectric sensor obtains optical signal inspection
Optical signal detecting value Δ s is digitized, obtains optical signal digital value Δ d by measured value Δ s.
S02：Compare optical signal limiting value dlimWith the size of optical signal digital value Δ d,
If Δ d≤dlim, the washing machine receives this vibrations, and the washing machine continues to run with, if Δ d > dlim, described to wash
Clothing machine does not receive this vibrations, and the washing machine reduces rotating speed or stops operating.
The invention also discloses a kind of load weighing methods for above-mentioned washing machine, implement as follows：
S10：It is determined and is born a heavy burden and the spring deformation according to the spring design parameter of the gravity photoelectric sensor
Ratio p.
S11：The weight change that said tub component after load is added is detected by the gravity photoelectric sensor, obtains light
The length variable quantity of the corresponding spring of value detection signal Δ s, optical signal detecting value Δ s is Δ l.
S12：The load weight G of said tub components interior is calculated according to the length variation delta l.
The invention also discloses a kind of cloth detection methods for above-mentioned washing machine, implement as follows：
S20：Preset a water level detecting value HnWith inflow T0Mapping table or relational expression.
S21：Start washing machine, load is put into the washing machine, by the gravity photoelectric sensor to described negative
Load is weighed, and load weight G is obtained.
S22：It is passed through the water of inflow T into the washing machine, is examined by water level sensor after the load fully water suction
The water level in washing machine is surveyed, secondary water level detected value H is obtainedm。
S23：Pass through a water level detecting value HnWith inflow T0Mapping table or relational expression, find out or find into water
Measure the corresponding water level detecting value H of Tn, then calculate the water level detecting value HnWith the secondary water level detected value HmBetween
Difference, obtain water-head Δ H, the material of the load judged according to the load weight G and the water-head Δ H.
Beneficial effects of the present invention are：
Washing machine provided by the invention is equipped with gravity photoelectric sensor, and gravity photoelectric sensor can accurately detect to wash
The weight of clothing machine internal load and the weight change amount of outer barrel component, to improve the shock detection sensitivity and load of washing machine
It weighs accuracy, after cooperation water level sensor is used in conjunction with, additionally it is possible to realize that the cloth quality detection of washing machine load and load are clear
Accurate control water function during washing.
Description of the drawings
Fig. 1 is the structure chart one for the gravity photoelectric sensor that the specific embodiment of the invention provides；
Fig. 2 is the structure chart two for the gravity photoelectric sensor that the specific embodiment of the invention provides；
Fig. 3 is the flow chart for the shock detection method that the specific embodiment of the invention provides；
Fig. 4 is the flow chart for the load weighing method that the specific embodiment of the invention provides；
Fig. 5 is the flow chart for the cloth detection method that the specific embodiment of the invention provides.
In figure：
1, spring；2, signal transmitting terminal；3, signal receiving end.
Specific implementation mode
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.
Embodiment one
A kind of washing machine provided in embodiment one, including controller, gravity photoelectric sensor, shell, be located at shell in
The outer barrel component in portion and the supporting member for being used to support outer barrel component, controller are fixed on shell.Gravity photoelectric sensor
It is electrically connected with controller, gravity photoelectric sensor is used to detect the force signal of supporting member.Supporting member is to bear outer bucket portion
The component of part weight, such as the sunpender of washing machine internal, sunpender is fixed on the shell of washing machine again, therefore shell can also be used as and hold
Heavy parts.
As shown in Figure 1, gravity photoelectric sensor includes shell, spring 1, signal transmitting terminal 2 and signal receiving end 3.Its
In, spring 1, signal transmitting terminal 2 and signal receiving end 3 are respectively positioned in shell, and spring 1 is connected with supporting member, preferably with wash
Sunpender inside clothing machine is connected, and the length variation of spring 1 is proportionate with the power variation on supporting member, i.e., the length of spring becomes
Change is bigger, and the pulling force or pressure that supporting member is subject to are bigger.Signal transmitting terminal 2 is for emitting optical signal, signal receiving end 3
For receiving optical signal.
The operation principle of gravity photoelectric sensor is as follows：
Assuming that the optical signal that signal transmitting terminal 2 is sent out is s1, the optical signal that signal receiving end 3 receives is s2.Signal transmitting terminal
After 2 optical signals sent out pass through spring 1, directive signal receiving end 3.When spring 1 is uncompressed, optical signal s1With optical signal s2
Almost equal or optical signal s1With optical signal s2With smaller difference, i.e., a part of light is blocked by spring 1.When 1 stress of spring
When deformation generates deformation quantity Δ l, the shielding rate of optical signal can will change, and the optical signal that signal receiving end 3 receives is just
It can change, obtain s2', variable quantity is Δ s=| s2'-s2|, the deformation quantity Δ l of this variation delta s reflection springs.It is practical
In use, be after Δ s is digitized, to issue controller by variable quantity, for the spring of certain fixing model, change in optical signal amount Δ
Correspondence between s and the deformation quantity Δ l of spring can be by simply converting or tabling look-up to obtain, and then is examined by photoelectric sensor
The changes delta s of light signal can be obtained the deformation quantity Δ l of spring.Wherein, table refers to the shape of change in optical signal amount Δ s and spring
Variable Δ l mapping tables can be obtained by experiment.Since optical signal is very sensitive to the deformation of spring 1, therefore use gravity
Photoelectric sensor can greatly improve the precision of load weight detection and the variation detection of outer barrel component weight of washing machine.
Preferably, as shown in Figure 1, signal transmitting terminal 2, signal receiving end 3 are located at the first side and second of spring 1
Side, i.e., after the optical signal that signal transmitting terminal 2 is sent out passes through spring 1, directive signal receiving end 3.Preferably, signal transmitting terminal 2, letter
Number receiving terminal 3 can also be located at the same side of spring 1, the reflected light for the spring 1 that signal receiving end 3 receives at this time.Such as Fig. 2 institutes
Show, upper and lower mode, the deformation quantity of detection spring 1 can also be used.
Preferably, supporting member is sunpender, and one end of sunpender is connected with outer barrel component, and the other end is connected with shell, weight
Power photoelectric sensor is fixed on the junction of the sunpender and said tub component or the connection of the sunpender and the shell
Place.It is preferred that it is since sunpender is very quick to the weight change of outer barrel of washing machine component that gravity photoelectric sensor, which is fixed on sunpender,
Sense.Preferably, supporting member is the footing for being used to support shell, and footing is located at the bottom of shell.Since sunpender is fixed on shell,
Pass through indirect power transmission to act on so that footing is also the sensitive part of outer barrel of washing machine component weight variation, therefore can also be incited somebody to action
Gravity photoelectric sensor is fixed on footing.
Embodiment two
As shown in figure 3, a kind of shock detection method for the washing machine in embodiment one provided in embodiment two, is pressed
Following steps are implemented：
S00：Optical signal limiting value d is preset in the controller of washing machinelim.According to the work of above-mentioned gravity photoelectric sensor
Make principle it is found that optical signal limiting value dlimThe largest deformation value that corresponding spring 1 allows, then thinks to do washing more than largest deformation value
The vibrations of machine are excessive, can lead to the irregular working of washing machine, on the contrary, then it is assumed that washing machine is working properly.
S01：Controller detects the weight change of outer barrel component by gravity photoelectric sensor in real time, obtains optical signal detecting
It is worth Δ s, i.e. the signal intensity value of signal receiving end 3, it is by modulus converter inside controller that optical signal detecting value Δ s is digital
Change, obtains optical signal digital value Δ d.
S02：Controller compares optical signal limiting value dlimWith the size of optical signal digital value Δ d,
If Δ d≤dlim, washing machine receives this vibrations, and washing machine continues to run with, if Δ d > dlim, washing machine do not receive this
Vibrations, washing machine reduce rotating speed or stop operating.
Embodiment three
As shown in figure 4, a kind of load weighing method for the washing machine in embodiment one provided in embodiment three, is pressed
Following steps are implemented：
S10：Controller determines the ratio to bear a heavy burden with 1 deformation of spring according to 1 design parameter of spring of gravity photoelectric sensor
p.Typically utilize the largest deformation amount of spring and maximum determination of bearing a heavy burden, i.e. p=Gmax/Δlmax。
Such as：The largest deformation amount of spring design is Δ lmax=8mm, maximum heavy burden Gmax=80kg, then p=10kg/mm.
After determining ratio p, it is only necessary to which the length variable quantity with gravity photoelectric sensor spring 1 is Δ l, just can determine that the weight of load.
S11：The weight change that said tub component after load is added is detected by the gravity photoelectric sensor, obtains light
The length variable quantity of the corresponding spring of value detection signal Δ s, optical signal detecting value Δ s 1 is Δ l, so as to controller computational load
Weight G.
S12：Controller calculates the load weight G of outer barrel components interior according to length variation delta l.
Calculation formula is as follows：
Example IV
As shown in figure 5, a kind of cloth detection method for the washing machine in embodiment one provided in example IV, is pressed
Following steps are implemented：
S20：When not being put into load in washing machine, understands measured in advance or calculate a water level detecting value HnWith inflow
T0Mapping table or relational expression.The step usually executes before washing machine manufacture, usually acquires inflow and water level
Data determine water level detecting value HnWith inflow T0Mapping table or relational expression, and frequently with data processing method have
Interpolation and fitting etc..
S21：Load is put into washing machine, controller weighs to load by gravity photoelectric sensor, obtains load weight
Measure G.Preferably the weighing method in embodiment three is used to weigh in method this implementation weighed, accurately determines load weight
G。
S22：Controller control inlet valve is passed through the water of inflow T into washing machine, passes through water level after loading fully water suction
Sensor detects the water level in washing machine, obtains secondary water level detected value Hm.During this, inflow T is big according to load weight G
It causes to determine, the method for determination can be tabled look-up.
S23：Controller passes through a water level detecting value HnWith inflow T0Mapping table or relational expression, find out or look into
Go out the corresponding water level detecting value H of inflow Tn, then calculate a water level detecting value HnWith secondary water level detected value HmBetween
Difference obtains water-head Δ H, and the material of load is judged according to load weight G and water-head Δ H.
In addition, usually water level sensor is set on the outer wall of outer barrel component.
Cloth is exemplified below and judges substantially method：
Assuming that load weight G=2kg, corresponding inflow is T=30L.When there is no load, a water of water level detecting
Position detected value Hn=180mm.When 2kg loads are cotton cloths, the secondary detection value H of water level detectingm=150mm, water-head Δ
H=30mm.When 2kg loads are chemical fibre cloths, the secondary detection value H of water level detectingm=170mm, water-head Δ H=10mm.
Therefore the material of load can be judged according to water-head Δ H.
Embodiment five
A kind of load based in embodiment three provided in embodiment five is weighed and the cloth quality detection in example IV
Accuracy control method, this method are to determine suitable inflow T according to load weight G and load cloth, this suitable water inlet
Amount not only can guarantee that clothes washing is clean, and it is abundant utilize water resource, achieved the purpose that water-saving.
The present invention is described with reference to the preferred embodiments, and those skilled in the art know, is not departing from the present invention's
In the case of spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.The present invention is not by this
The limitation of specific embodiment disclosed in place, other embodiments fallen into claims hereof belong to protection of the present invention
Range.
Claims (7)
1. a kind of washing machine, including controller, shell, positioned at the enclosure interior outer barrel component and be used to support described outer
The supporting member of bucket portion part, it is characterised in that：
It further include the gravity photoelectric sensor for detecting the supporting member stress variation；
The gravity photoelectric sensor is electrically connected with the controller；
The gravity photoelectric sensor includes：
Spring (1), is connected with the supporting member, and length variation and the power on the supporting member of the spring (1) change
It is proportionate；
Signal transmitting terminal (2), for emitting optical signal；
Signal receiving end (3), for receiving optical signal.
2. washing machine according to claim 1, which is characterized in that
The signal transmitting terminal (2), the signal receiving end (3) are located at the not homonymy of the spring (1).
3. washing machine according to claim 1, which is characterized in that
The signal transmitting terminal (2), the signal receiving end (3) are located at the same side of the spring (1).
4. washing machine according to claim 1, which is characterized in that
The supporting member is sunpender；
One end of the sunpender is connected with said tub component, and the other end is connected with the shell；
The gravity photoelectric sensor be arranged the junction of the sunpender and said tub component or the sunpender with it is described
The junction of shell.
5. a kind of shock detection method for claim 1-4 any one of them washing machines, which is characterized in that by following step
It is rapid to implement：
S00：Default optical signal limiting value dlim；
S01：The weight change for detecting said tub component in real time by the gravity photoelectric sensor, obtains optical signal detecting value
Optical signal detecting value Δ s is digitized, obtains optical signal digital value Δ d by Δ s；
S02：Compare optical signal limiting value dlimWith the size of optical signal digital value Δ d,
If Δ d≤dlim, the washing machine receives this vibrations, and the washing machine continues to run with, if Δ d > dlim, the washing machine
This vibrations is not received, the washing machine reduces rotating speed or stops operating.
6. a kind of load weighing method for claim 1-4 any one of them washing machines, which is characterized in that by following step
It is rapid to implement：
S10：It is determined and is born a heavy burden and the spring (1) deformation according to the spring (1) design parameter of the gravity photoelectric sensor
Ratio p；
S11：The weight change that said tub component after load is added is detected by the gravity photoelectric sensor, obtains optical signal
Corresponding spring (1) the length variable quantity of detected value Δ s, optical signal detecting value Δ s is Δ l；
S12：The load weight G of said tub components interior is calculated according to the length variation delta l.
7. a kind of cloth detection method for claim 1-4 any one of them washing machines, which is characterized in that by following step
It is rapid to implement：
S20：Preset a water level detecting value HnWith inflow T0Mapping table or relational expression；
S21：Start washing machine, load is put into the washing machine, the load is claimed by the gravity photoelectric sensor
Weight, obtains load weight G；
S22：It is passed through the water of inflow T into the washing machine, is washed by water level sensor detection after the load fully water suction
Water level in clothing machine obtains secondary water level detected value Hm；
S23：Pass through a water level detecting value HnWith inflow T0Mapping table or relational expression, find out or find T pairs of inflow
The water level detecting value H answeredn, then calculate the water level detecting value HnWith the secondary water level detected value HmBetween difference
Value, obtains water-head Δ H, the material of the load is judged according to the load weight G and the water-head Δ H.
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| US10161075B2 (en) | 2016-06-30 | 2018-12-25 | Midea Group Co., Ltd. | Laundry washing machine with automatic detection of detergent deficit |
| US10161074B2 (en) | 2016-06-30 | 2018-12-25 | Midea Group Co., Ltd. | Laundry washing machine with automatic detergent dispensing and/or rinse operation type selection |
| US10273622B2 (en) | 2016-06-30 | 2019-04-30 | Midea Group Co., Ltd. | Laundry washing machine with automatic selection of load type |
| US10358760B2 (en) | 2016-06-30 | 2019-07-23 | Midea Group Co., Ltd. | Laundry washing machine with automatic rinse operation type selection |
| US11371175B2 (en) | 2020-06-04 | 2022-06-28 | Midea Group Co., Ltd. | Laundry washing machine with dynamic selection of load type |
| US11898289B2 (en) | 2020-12-18 | 2024-02-13 | Midea Group Co., Ltd. | Laundry washing machine calibration |
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| US11866868B2 (en) | 2020-12-18 | 2024-01-09 | Midea Group Co., Ltd. | Laundry washing machine color composition analysis with article alerts |
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| CN1690291A (en) * | 2004-04-22 | 2005-11-02 | 海尔集团公司 | Washing machine weighing method and washing machine for realizing the method |
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| JP3066208B2 (en) * | 1992-12-07 | 2000-07-17 | 三洋電機株式会社 | Washing machine |
| CN1268596A (en) * | 1999-03-29 | 2000-10-04 | 三洋电机株式会社 | Washing machine and device having rotating container |
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Effective date of registration: 20160601 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. |
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