CN104790179A - Washing machine and method for conducting vibration detection, load weighing and cloth detecting for washing machine - Google Patents
Washing machine and method for conducting vibration detection, load weighing and cloth detecting for washing machine Download PDFInfo
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- CN104790179A CN104790179A CN201410027868.0A CN201410027868A CN104790179A CN 104790179 A CN104790179 A CN 104790179A CN 201410027868 A CN201410027868 A CN 201410027868A CN 104790179 A CN104790179 A CN 104790179A
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Abstract
The invention discloses a washing machine. The washing machine comprises a controller, a gravity photoelectric sensor, a shell, an external barrel component arranged inside the shell and a bearing component used for supporting the external barrel component. The controller is fixed to the shell. The gravity photoelectric sensor is electrically connected with the controller and is used for detecting a force signal of the bearing component. The gravity photoelectric sensor comprises a spring, a signal transmitting end and a signal receiving end. The spring is connected with the bearing component, the signal transmitting end is used for transmitting an optical signal and the signal receiving end is used for receiving the optical signal. The invention discloses methods for vibration detection, load weighing and cloth detecting for the washing machine. The washing machine has the advantages that the vibration detection is sensitive, the accuracy of load weighing is reliable, and function of cloth detecting of the load and inflow accuracy control can be achieved when the washing machine and a water level sensor are used cooperatively.
Description
Technical field
The present invention relates to a kind of washing machine and this washing machine carries out shock detection, load is weighed and the method for cloth quality detection.
Background technology
In the actual use procedure of washing machine, usually there will be vibrations, the cloth matter of inflow and clothing and quantity and the problem such as not mate.Wherein, vibrations are that it not only can bring noise because the bias of clothing even load causes, and cause washing machine to hit bucket, damage washing machine.Cloth matter and the quantity of inflow and clothing are not mated, can cause the excessive use of water or inflow not enough, the excessive use of water can cause the waste of water resource, and inflow deficiency then can affect the cleannes of clothing.
Chinese patent literature publication number CN200985445Y discloses a kind of washing machine using gravity sensor controlling water level, gravity sensor is arranged on washing machine, the change of water level of washing machine causes changes in weight, thus make gravity sensor be subject to different pressures, its resistance value is linear change with the change of pressure, by electronic program controller to signal transacting, reach the effect of controlling water level.The usual structure of gravity sensor of this controlling water level is simple, certainty of measurement is limited, only can realize the roughly control to water level, and be difficult to the occasion that applies to need accurate weight measurement and changes in weight amount, the shock detection of washing machine to be realized by above-mentioned traditional gravity sensor and accurately the function such as control water is very difficult.
Summary of the invention
In order to overcome the defect of prior art, technical problem to be solved of the present invention is to propose a kind of washing machine, not only shock detection is very sensitive, and load weigh precisely reliable, and itself and level sensor are with the use of rear, the cloth quality detection of load and the accurate controlling functions of water inlet can also be realized.
For reaching this object, the present invention by the following technical solutions:
The invention provides a kind of washing machine, comprising controller, housing, being positioned at the outer barrel parts of described enclosure interior and the supporting member for supporting described outer barrel parts, also comprise the gravity photoelectric sensor of the stressed change for detecting described supporting member, described gravity photoelectric sensor and described controller are electrically connected.
Further technical scheme of the present invention: described gravity photoelectric sensor comprises:
Spring, is connected with described supporting member, and the power on the length variations of described spring and described supporting member changes and is proportionate.
Signal transmitting terminal, for utilizing emitted light signal.
Signal receiving end, for receiving optical signals.
Further technical scheme of the present invention: described signal transmitting terminal, described signal receiving end lay respectively at the not homonymy of described spring.
Further technical scheme of the present invention: described signal transmitting terminal, described signal receiving end are positioned at the same side of described spring.
Further technical scheme of the present invention: described supporting member is suspension rod, one end of described suspension rod is connected with described outer barrel parts, its other end is connected with described housing, and described gravity photoelectric sensor is arranged on the junction of described suspension rod and described outer barrel parts or the junction of described suspension rod and described housing.
The invention also discloses a kind of shock detection method for above-mentioned washing machine, implement as follows:
S00: preset optical signal limiting value d
lim.
S01: the changes in weight being detected described outer barrel parts by described gravity photoelectric sensor in real time, obtains optical signal detecting value Δ s, by optical signal detecting value Δ s digitlization, obtains optical signal digital value Δ d.
S02: compare optical signal limiting value d
limwith the size of optical signal digital value Δ d,
If Δ d≤d
lim, described washing machine accepts this vibrations, and described washing machine continues to run, if Δ d > is d
lim, described washing machine does not accept this vibrations, and described washing machine reduces rotating speed or stops operating.
The invention also discloses a kind of load Weighing method for above-mentioned washing machine, implement as follows:
S10: the ratio p determining heavy burden and described spring deformation according to the described spring design parameter of described gravity photoelectric sensor.
S11: the changes in weight of described outer barrel parts after adding load by described gravity photoelectric sensor detection, obtain optical signal detecting value Δ s, the length variations amount of the described spring that optical signal detecting value Δ s is corresponding is Δ l.
S12: the load weight G calculating described outer barrel components interior according to described length variations amount Δ l.
The invention also discloses a kind of cloth quality detection method for above-mentioned washing machine, implement as follows:
S20: preset a water level detecting value H
nwith inflow T
0mapping table or relational expression.
S21: start washing machine, put into described load in described washing machine, by described gravity photoelectric sensor, described load is weighed, obtain load weight G.
S22: the water passing into inflow T in described washing machine, detects the water level in washing machine by described level sensor after described load fully absorbs water, obtains secondary water level detected value H
m.
S23: by a water level detecting value H
nwith inflow T
0mapping table or relational expression, find out or find the water level detecting value H that inflow T is corresponding
n, then calculate a described water level detecting value H
nwith described secondary water level detected value H
mbetween difference, obtain water-head Δ H, judge the material of described load according to described load weight G and described water-head Δ H.
Beneficial effect of the present invention is:
Washing machine provided by the invention is provided with gravity photoelectric sensor, gravity photoelectric sensor can detect the weight of washing machine internal load and the changes in weight amount of outer barrel parts accurately, the accuracy thus the shock detection sensitivity of raising washing machine and load are weighed, after hydrous water level sensor uses jointly, the accurate control water function in the cloth quality detection of washing machine load and load cleaning process can also be realized.
Accompanying drawing explanation
Fig. 1 is the structure chart one of the gravity photoelectric sensor that the specific embodiment of the invention provides;
Fig. 2 is the structure chart two of the gravity photoelectric sensor that the specific embodiment of the invention provides;
Fig. 3 is the flow chart of the shock detection method that the specific embodiment of the invention provides;
Fig. 4 is the flow chart of the load Weighing method that the specific embodiment of the invention provides;
Fig. 5 is the flow chart of the cloth quality detection method that the specific embodiment of the invention provides.
In figure:
1, spring; 2, signal transmitting terminal; 3, signal receiving end.
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.
Embodiment one
A kind of washing machine provided in embodiment one, comprising controller, gravity photoelectric sensor, housing, being positioned at the outer barrel parts of enclosure interior and the supporting member for supporting outer barrel parts, controller is fixed on housing.Gravity photoelectric sensor and controller are electrically connected, and gravity photoelectric sensor is for detecting the force signal of supporting member.Supporting member is the parts bearing outer barrel component weight, and as the suspension rod of washing machine internal, suspension rod is fixed on the housing of washing machine again, therefore housing also can as load-supporting part.
As shown in Figure 1, gravity photoelectric sensor comprises shell, spring 1, signal transmitting terminal 2 and signal receiving end 3.Wherein, spring 1, signal transmitting terminal 2 and signal receiving end 3 are all arranged in shell, spring 1 is connected with supporting member, preferably be connected with the suspension rod of washing machine internal, power on the length variations of spring 1 and supporting member changes and is proportionate, namely the length variations of spring is larger, the pulling force that supporting member is subject to or pressure larger.Signal transmitting terminal 2 is for utilizing emitted light signal, and signal receiving end 3 is for receiving optical signals.
The operation principle of gravity photoelectric sensor is as follows:
Suppose that the optical signal that signal transmitting terminal 2 sends is s
1, the optical signal that signal receiving end 3 receives is s
2.After the optical signal that signal transmitting terminal 2 sends passes spring 1, directive signal receiving end 3.When spring 1 is not by compression, optical signal s
1with optical signal s
2almost equal or optical signal s
1with optical signal s
2have less difference, namely a part of light is blocked by spring 1.When spring 1 stress deformation produces deformation quantity Δ l, the shielding rate of optical signal can will change, and the optical signal that signal receiving end 3 receives, for changing, obtains s
2', its variable quantity is Δ s=|s
2'-s
2|, this variation delta s reflects the deformation quantity Δ l of spring.In actual use, be after Δ s digitlization by variable quantity, issue controller, for the spring of fixing model, corresponding relation between the deformation quantity Δ l of change in optical signal amount Δ s and spring obtains by simply converting or tabling look-up, and then can obtain the deformation quantity Δ l of spring by the changes delta s of photoelectric sensor sensed light signal.Wherein, table refers to the deformation quantity Δ l mapping table of change in optical signal amount Δ s and spring, can obtain by experiment.Because optical signal is very responsive to the deformation of spring 1, therefore the precision that the load weight adopting gravity photoelectric sensor significantly can improve washing machine detects and the change of outer barrel component weight detects.
Preferably, as shown in Figure 1, signal transmitting terminal 2, signal receiving end 3 lay respectively at the first side and second side of spring 1, after the optical signal that namely signal transmitting terminal 2 sends passes spring 1, and directive signal receiving end 3.Preferably, signal transmitting terminal 2, signal receiving end 3 also can be positioned at the same side of spring 1, the reverberation of the spring 1 of now signal receiving end 3 reception.As shown in Figure 2, upper and lower mode can also be adopted, the deformation quantity of detection springs 1.
Preferably, supporting member is suspension rod, and one end of suspension rod is connected with outer barrel parts, and its other end is connected with housing, and gravity photoelectric sensor is fixed on the junction of described suspension rod and described outer barrel parts or the junction of described suspension rod and described housing.It is because suspension rod is to the changes in weight of outer barrel of washing machine parts sensitivity very that preferred gravity photoelectric sensor is fixed on suspension rod.Preferably, supporting member is the footing for support housing, and footing is positioned at the bottom of housing.Because suspension rod is fixed on housing, by indirectly power transmission effect, make footing also be the sensitive part that outer barrel of washing machine component weight changes, therefore also gravity photoelectric sensor can be 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, implement as follows:
S00: preset optical signal limiting value d in the controller of washing machine
lim.According to the operation principle of above-mentioned gravity photoelectric sensor, optical signal limiting value d
limthe largest deformation value that corresponding spring 1 allows, exceedes largest deformation value and then thinks that the vibrations of washing machine are excessive, can cause the irregular working of washing machine, otherwise, then think that washing machine is working properly.
S01: controller detects the changes in weight of outer barrel parts in real time by gravity photoelectric sensor, obtain optical signal detecting value Δ s, the i.e. signal intensity value of signal receiving end 3, by the inner modulus converter of controller by optical signal detecting value Δ s digitlization, obtains optical signal digital value Δ d.
S02: controller compares optical signal limiting value d
limwith the size of optical signal digital value Δ d,
If Δ d≤d
lim, washing machine accepts this vibrations, and washing machine continues to run, if Δ d > is d
lim, washing machine does not accept this vibrations, and washing machine reduces rotating speed or stops 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, implement as follows:
S10: controller determines the ratio p of heavy burden and spring 1 deformation according to spring 1 design parameter of gravity photoelectric sensor.The largest deformation amount of spring and maximum heavy burden is normally utilized to determine, i.e. p=G
max/ Δ l
max.
Such as: the largest deformation amount of spring design is Δ l
max=8mm, maximum heavy burden G
max=80kg, then p=10kg/
mm.After determining ratio p, only needing by the length variations amount of gravity photoelectric sensor spring 1 is Δ l, just can determine the weight of load.
S11: the changes in weight of described outer barrel parts after adding load by described gravity photoelectric sensor detection, obtain optical signal detecting value Δ s, the length variations amount of the spring 1 that optical signal detecting value Δ s is corresponding is Δ l, so that controller computational load weight G.
S12: controller calculates the load weight G of outer barrel components interior according to length variations amount Δ l.
Computing formula is as follows:
Embodiment four
As shown in Figure 5, a kind of cloth quality detection method for the washing machine in embodiment one provided in embodiment four, implement as follows:
S20: when not putting into load in washing machine, can measure or calculate a water level detecting value H in advance
nwith inflow T
0mapping table or relational expression.This step performed usually before washing machine dispatches from the factory, and usually gathered the data determination water level detecting value H of inflow and water level
nwith inflow T
0mapping table or relational expression, and the data processing method often adopted has interpolation and matching etc.
S21: put into load in washing machine, controller is weighed to load by gravity photoelectric sensor, obtains load weight G.Preferably adopt the Weighing method in embodiment three to weigh in this enforcement of method of weighing, determine load weight G accurately.
S22: controller controls the water that water intaking valve passes into inflow T in washing machine, detects the water level in washing machine, obtain secondary water level detected value H after load fully absorbs water by level sensor
m.In this process, inflow T roughly determines according to load weight G, and defining method can be table look-up.
S23: controller is by a water level detecting value H
nwith inflow T
0mapping table or relational expression, find out or find the water level detecting value H that inflow T is corresponding
n, then calculate a water level detecting value H
nwith secondary water level detected value H
mbetween difference, obtain water-head Δ H, judge the material of load according to load weight G and water-head Δ H.
In addition, usual level sensor is located on the outer wall of outer barrel parts.
Illustrate that cloth matter judges roughly method below:
Suppose load weight G=2kg, corresponding inflow is T=30L.When there is no load, a water level detecting value H of water level detecting
n=180mm.When 2kg load is cotton cloth matter, the secondary detection value H of water level detecting
m=150mm, water-head Δ H=30mm.When 2kg load is chemical fabric matter, the secondary detection value H of water level detecting
m=170mm, water-head Δ H=10mm.Therefore the material of load can be judged according to water-head Δ H.
Embodiment five
What provide in embodiment five a kind ofly weighs based on the load in embodiment three and the accuracy control method of cloth quality detection in embodiment four, the method determines suitable inflow T according to load weight G and load cloth matter, this suitable inflow can not only ensure that clothes washing is clean, and abundant utilize water resource, reach the object of water saving.
The present invention is described by preferred embodiment, and those skilled in the art know, without departing from the spirit and scope of the present invention, can carry out various change or equivalence replacement to these characteristic sum embodiments.The present invention is not by the restriction of specific embodiment disclosed herein, and other embodiments fallen in the claim of the application all belong to the scope of protection of the invention.
Claims (8)
1. a washing machine, comprising controller, housing, being positioned at the outer barrel parts of described enclosure interior and the supporting member for supporting described outer barrel parts, it is characterized in that:
Also comprise the gravity photoelectric sensor for detecting the stressed change of described supporting member;
Described gravity photoelectric sensor and described controller are electrically connected.
2. washing machine according to claim 1, is characterized in that,
Described gravity photoelectric sensor comprises:
Spring (1), is connected with described supporting member, and the power on the length variations of described spring (1) and described supporting member changes and is proportionate;
Signal transmitting terminal (2), for utilizing emitted light signal;
Signal receiving end (3), for receiving optical signals.
3. washing machine according to claim 2, is characterized in that,
Described signal transmitting terminal (2), described signal receiving end (3) lay respectively at the not homonymy of described spring (1).
4. washing machine according to claim 2, is characterized in that,
Described signal transmitting terminal (2), described signal receiving end (3) are positioned at the same side of described spring (1).
5. washing machine according to claim 1 and 2, is characterized in that,
Described supporting member is suspension rod;
One end of described suspension rod is connected with described outer barrel parts, and its other end is connected with described housing;
Described gravity photoelectric sensor is arranged on the junction of described suspension rod and described outer barrel parts or the junction of described suspension rod and described housing.
6. for a shock detection method for the washing machine described in any one of claim 1-5, it is characterized in that, implement as follows:
S00: preset optical signal limiting value d
lim;
S01: the changes in weight being detected described outer barrel parts by described gravity photoelectric sensor in real time, obtains optical signal detecting value Δ s, by optical signal detecting value Δ s digitlization, obtains optical signal digital value Δ d;
S02: compare optical signal limiting value d
limwith the size of optical signal digital value Δ d,
If Δ d≤d
lim, described washing machine accepts this vibrations, and described washing machine continues to run, if Δ d > is d
lim, described washing machine does not accept this vibrations, and described washing machine reduces rotating speed or stops operating.
7. for a load Weighing method for the washing machine described in any one of claim 1-5, it is characterized in that, implement as follows:
S10: the ratio determining heavy burden and described spring (1) deformation according to described spring (1) design parameter of described gravity photoelectric sensor
p;
S11: the changes in weight of described outer barrel parts after adding load by described gravity photoelectric sensor detection, obtain optical signal detecting value Δ s, described spring (1) the length variations amount that optical signal detecting value Δ s is corresponding is Δ l;
S12: the load weight G calculating described outer barrel components interior according to described length variations amount Δ l.
8. for a cloth quality detection method for the washing machine described in any one of claim 1-5, it is characterized in that, implement as follows:
S20: preset a water level detecting value H
nwith inflow T
0mapping table or relational expression;
S21: start washing machine, put into described load in described washing machine, by described gravity photoelectric sensor, described load is weighed, obtain load weight G;
S22: the water passing into inflow T in described washing machine, detects the water level in washing machine by described level sensor after described load fully absorbs water, obtains secondary water level detected value H
m;
S23: by a water level detecting value H
nwith inflow T
0mapping table or relational expression, find out or find the water level detecting value H that inflow T is corresponding
n, then calculate a described water level detecting value H
nwith described secondary water level detected value H
mbetween difference, obtain water-head Δ H, judge the material of described load according to described load weight G and described water-head Δ H.
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Cited By (8)
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| WO2018001077A1 (en) * | 2016-06-30 | 2018-01-04 | Midea Group Co., Ltd. | Laundry washing machine with automatic selection of load type |
| 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 |
| US10161075B2 (en) | 2016-06-30 | 2018-12-25 | Midea Group Co., Ltd. | Laundry washing machine with automatic detection of detergent deficit |
| 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 |
| US11773524B2 (en) | 2020-12-18 | 2023-10-03 | Midea Group Co., Ltd. | Laundry washing machine color composition analysis during loading |
| US11866868B2 (en) | 2020-12-18 | 2024-01-09 | Midea Group Co., Ltd. | Laundry washing machine color composition analysis with article alerts |
| US11898289B2 (en) | 2020-12-18 | 2024-02-13 | Midea Group Co., Ltd. | Laundry washing machine calibration |
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| WO2018001077A1 (en) * | 2016-06-30 | 2018-01-04 | Midea Group Co., Ltd. | Laundry washing machine with automatic selection of load type |
| 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 |
| US10161075B2 (en) | 2016-06-30 | 2018-12-25 | Midea Group Co., Ltd. | Laundry washing machine with automatic detection of detergent deficit |
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| US11072879B2 (en) | 2016-06-30 | 2021-07-27 | Midea Group Co., Ltd. | Laundry washing machine with automatic rinse operation type selection |
| US11230803B2 (en) | 2016-06-30 | 2022-01-25 | Midea Group Co., Ltd. | Laundry washing machine with automatic selection of load type |
| US11371175B2 (en) | 2020-06-04 | 2022-06-28 | Midea Group Co., Ltd. | Laundry washing machine with dynamic selection of load type |
| US11773524B2 (en) | 2020-12-18 | 2023-10-03 | Midea Group Co., Ltd. | Laundry washing machine color composition analysis during loading |
| US11866868B2 (en) | 2020-12-18 | 2024-01-09 | Midea Group Co., Ltd. | Laundry washing machine color composition analysis with article alerts |
| US11898289B2 (en) | 2020-12-18 | 2024-02-13 | Midea Group Co., Ltd. | Laundry washing machine calibration |
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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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