CN107109749A - Dewaterer - Google Patents
Dewaterer Download PDFInfo
- Publication number
- CN107109749A CN107109749A CN201580067405.XA CN201580067405A CN107109749A CN 107109749 A CN107109749 A CN 107109749A CN 201580067405 A CN201580067405 A CN 201580067405A CN 107109749 A CN107109749 A CN 107109749A
- Authority
- CN
- China
- Prior art keywords
- value
- washings
- dehydration
- slot
- bias
- Prior art date
- 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.)
- Granted
Links
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
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/48—Preventing or reducing imbalance or noise
-
- 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
- D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry
- D06F23/06—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and rotating or oscillating about an inclined axis
-
- 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
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/02—Rotary receptacles, e.g. drums
- D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
-
- 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
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
-
- 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
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/304—Arrangements or adaptations of electric motors
-
- 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
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/36—Driving arrangements for rotating the receptacle at more than one speed
-
- 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
-
- 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/24—Spin speed; Drum movements
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The present invention provides a kind of dewaterer of the eccentric rotary for the dehydration groove that can suppress to be arranged obliquely in early days.Dewaterer (1) includes：Groove (4) is dehydrated, is cylindrical in shape, with the central axis (17) along the incline direction K extensions relative to above-below direction Z；Gimbal (19), contains the liquid of the spin balancing for obtaining dehydration groove (4) with internally flowing freely, and is installed on dehydration groove (4) with coaxial state；And control unit (30).The preparatory stage of washings Q of the control unit (30) in dehydration groove (4) dehydration, by rotating dehydration groove (4) with the rotating speed lower than the minimum speed that dehydration groove (4) resonates, so as to detect the bias position of the washings Q in dehydration groove (4), and will stop the rotation of dehydration groove (4) before central axis (17) is located in gimbal (19) the opposite side of the liquid of Z2 bias downwards in the washings Q in dehydration groove (4) in bias.
Description
The present invention relates to a kind of dewaterers.
In following patent documents 1, a kind of washing machine with dehydrating function is disclosed.In the washing machine, for accommodating the sink of tubular of washings, center axis thereof is obliquely configured relative to plumb line.Therefore, the top of sink obliquely configures in such a way that the face side to washing machine is outstanding.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2000-312795 bulletin
Problems to be solved by the invention
In the dehydration slot dewaterer being arranged obliquely same as the washing machine of patent document 1 of receiving washings, washings is easy bias in dehydration slot.If carrying out dehydration operating in the state of washings bias, dehydration slot will be eccentrically rotated to vibrate.Therefore, in dewaterer, in order to not vibrate as far as possible, make every effort to inhibit to be dehydrated being eccentrically rotated for slot in early days.
Summary of the invention
The present invention is completed based on the background, it is intended that providing a kind of dewaterer, can inhibit being eccentrically rotated for the dehydration slot being arranged obliquely in early days.
The solution to the problem
The present invention is a kind of dewaterer characterized by comprising dehydration slot is formed to have the tubular of the central axis along the inclined direction extension relative to up and down direction, accommodates washings, and rotated so that washings to be dehydrated around the central axis；Balance ring is formed as the hollow ring-type that coaxially state is installed on the dehydration slot, and in internal contain the spin balancing for obtaining dehydration slot liquid with flowing freely；And dehydration preparatory unit, in the preparation stage of the dehydration of washings, by rotating the dehydration slot with the low revolving speed of the minimum speed to resonate than the dehydration slot, to detect the bias position of the washings in the dehydration slot, and stop the rotation of the dehydration slot before the washings in the dehydration slot will be located in balance ring the opposite side of the liquid of bias downwards across central axis in bias.
In addition, the present invention is a kind of dewaterer, it is characterised in that, it include: dehydration slot, it is formed to have the tubular of the central axis along the inclined direction extension relative to up and down direction, accommodates washings, and rotated so that washings to be dehydrated around the central axis；Electric motor rotates the dehydration slot；Value of information acquisition unit successively obtains the value of information that reduce with the rising of the revolving speed of the motor in the motor using the rotating speed of target for washings to be formally dehydrated as under the acceleration mode that target accelerates；Counting unit makes the count value of initial value zero add 1 when the value of information acquisition unit obtains the value of information；Computing unit, calculate the value of information it is bigger than the previous value of information in the case where the value of information and the previous value of information difference aggregate-value；Judging unit when the aggregate-value when the count value is specified value reaches the first threshold when count value is the specified value, judges that there are the bias of washings in the dehydration slot；And stop unit, in judging unit judgement, there are the rotation stoppings the in the case where bias of washings, making the dehydration slot.
In addition, before calculating the aggregate-value using the computing unit, first passing through rolling average and being corrected to the value of information it is a feature of the present invention that further include information correction unit.
Furthermore, the present invention is characterized in that, including execution unit, the execution unit is in the case where the stop unit stops the rotation of the dehydration slot, select any one of an execution reboot process and correcting process, wherein, reboot process is by rotating the dehydration slot again to start again at the processing of the dehydration of washings, correcting process is the processing being modified to the bias of the washings in the dehydration slot, after the reboot process performs stipulated number and in the case that the stop unit stops the rotation of the dehydration slot, the execution unit does not select to execute the reboot process, but selection executes the correcting process.
Furthermore, the present invention is characterized in that, including accelerator module, the accelerator module is with the first boost phase, second boost phase, these three stages of third boost phase make spinning up for the motor, wherein, first boost phase refers to the motor towards the rotating speed of target, from start to be rotated up reach higher than the revolving speed that lateral resonance occurs for the dehydration slot and lower than the revolving speed that longitudinal resonance occurs for the dehydration slot the first revolving speed until boost phase, second boost phase is the boost phase until from first revolving speed to the second revolving speed higher than first revolving speed, third boost phase is the boost phase until second revolving speed to the rotating speed of target, the first threshold is respectively in first boost phase, it is independently set in second boost phase and the third boost phase, the value of information obtains single Member obtains the value of information in first boost phase, second boost phase and the third boost phase respectively, the counting unit makes the count value add 1, the computing unit calculates the aggregate-value, when the aggregate-value reaches the first threshold, the judging unit judges that there are the bias of washings in the dehydration slot.
In addition, it is a feature of the present invention that include: duty ratio acquisition unit, in the third boost phase, by obtaining the duty ratio for being applied to the voltage of the motor at the time of every regulation；And converter unit, duty ratio acquired by the duty ratio acquisition unit is transformed to set quota value, when the index value reaches the second threshold at corresponding moment, the judging unit judges that there are the bias of washings in the dehydration slot.
Furthermore, the present invention is characterized in that, including threshold value changing unit, the threshold value changing unit changes the second threshold according to the aggregate-value at least any one boost phase of first boost phase, second boost phase and the third boost phase.
In addition, it is a feature of the present invention that the judging unit judges that there are the bias of washings in the dehydration slot when the variable quantity of the aggregate-value reaches third threshold value.
In addition, the present invention is a kind of dewaterer, it is characterised in that, it include: dehydration slot, it is formed to have the tubular of the central axis along the inclined direction extension relative to up and down direction, accommodates washings, and rotated so that washings to be dehydrated around the central axis；Outer groove accommodates the dehydration slot；Electric motor rotates the dehydration slot；Judging unit judges that there are the bias of washings in the dehydration slot when the related value of information of the rotation status of the motor until reaching the rotating speed of target for washings to be formally dehydrated with the revolving speed of the motor reaches threshold value；Detection unit, when the dehydration slot is eccentrically rotated with the bias of the washings in the dehydration slot, when the outer groove being caused to vibrate, by being contacted with the outer groove, to mechanically detect being eccentrically rotated for the dehydration slot；The case where stop unit, there are the bias of washings according to judging unit judgement and the detection unit detect dehydration being eccentrically rotated of slot in the case where any case generation, stop the rotation of the dehydration slot；And threshold correction unit, when the detection unit detects when being eccentrically rotated of slot of dehydration, the difference of the value of information and the threshold value is in the case that regulation is above, or when the judging unit judges to be corrected the threshold value there are in the case where the bias of washings before the detection unit detects to be eccentrically rotated.
In addition, the present invention is a kind of dewaterer, it is characterised in that, it include: dehydration slot, it is formed to have the tubular of the central axis along the inclined direction extension relative to up and down direction, accommodates washings, and rotated so that washings to be dehydrated around the central axis；Outer groove accommodates the dehydration slot；Electric motor rotates the dehydration slot；Judging unit judges that there are the bias of washings in the dehydration slot when the related value of information of the rotation status of the motor until reaching the rotating speed of target for washings to be formally dehydrated with the revolving speed of the motor reaches threshold value；Detection unit, when the dehydration slot is eccentrically rotated with the bias of the washings in the dehydration slot, when the outer groove being caused to vibrate, by being contacted with the outer groove, to mechanically detect being eccentrically rotated for the dehydration slot；Stop unit is deposited according to judging unit judgement
The bias of washings the case where and the detection unit detects the generation of any case in the case where being eccentrically rotated of the dehydration slot, stops the rotation of the dehydration slot；And shelving unit shelves the stopping of the rotation of the dehydration slot carried out by the stop unit until the detection number of the detection unit reaches stipulated number before the judging unit judges there are the bias of washings.
Invention effect
According to the present invention, it since the dehydration slot of dewaterer is formed to have the tubular of the central axis along the inclined direction extension relative to up and down direction, thus obliquely configures.Coaxially state is mounted on dehydration slot to hollow cricoid balance ring.Therefore, in the state that dehydration slot is static, the liquid for being contained in the inside of balance ring configures in balance ring downwards in bias.
In dehydration slot, it is assumed that washings configures the liquid bias in balance ring to identical position with deviating on the direction of rotation of dehydration slot and downwards.In this state, when the rotation for starting to be dehydrated slot is so that washings to be dehydrated, dehydration slot is just eccentrically rotated from rotation is started.
Therefore, in dewaterer, in the preparation stage of dehydration, preparatory unit is dehydrated by making to be dehydrated slot number low speed rotation with the low revolving speed of the minimum speed to resonate than dehydration slot, to detect the bias position of washings on the direction of rotation in dehydration slot.Being dehydrated preparatory unit stops the rotation for being dehydrated slot in bias before the washings in dehydration slot will be located in balance ring the opposite side of the liquid of bias downwards across central axis according to the bias position detected.
In addition, due to stopping the rotation for being dehydrated slot when the washings being dehydrated in slot is just located at the opposite side of the liquid in balance ring across central axis in bias, it therefore may be due to being rotated having little time to stop, being dehydrated slot after stopping because of inertia, so that washings finally comes the same side with the liquid in balance ring.
Therefore, if before opposite side of the bias in the liquid that the washings in dehydration slot will be located in balance ring across central axis, if stopping the rotation for being dehydrated slot, hereafter, the liquid of bias will maintain the state for being located at substantially opposite side across central axis to bias downwards in the washings in dehydration slot and in balance ring.After such preparation stage, when dehydration slot is rotated to be dehydrated, dehydration slot is rotated with the state of liquid and washings substantial equilibrium in balance ring.Thereby, it is possible to inhibit being eccentrically rotated for the dehydration slot being arranged obliquely in early days.
According to the present invention, the dehydration slot of dewaterer is the tubular with the central axis along the inclined direction extension relative to up and down direction, and is obliquely configured.In the dewaterer for rotating the dehydration slot with motor, under the acceleration mode that motor accelerates to the rotating speed of target for washings to be formally dehydrated, the value of information that reduce successively is obtained with the rising of the revolving speed of motor, whenever obtaining the value of information, makes initial value zero
Count value adds 1.
It, there are if the bias of washings, can sometimes be changed due to the value of information that script should reduce, so that the value of information at a certain moment becomes bigger than the previous value of information if in dehydration slot.In this case, the aggregate-value of the difference of the value of information and the previous value of information is greater than zero.If being dehydrated slot in dehydration slot there are rotation is continued in the state of the bias of washings, aggregate-value will be become much larger.
Moreover, indicating that, there are the bias of washings in dehydration slot, the rotation for being dehydrated slot stops when the aggregate-value when count value is specified value reaches first threshold when count value is the specified value.Therefore, being eccentrically rotated for dehydration slot can be inhibited in early days under the acceleration mode of motor there are in the case where the bias of washings in the dehydration slot being arranged obliquely.
According to the present invention, the value of information used in the calculating of aggregate-value is due to first passing through rolling average and being corrected before calculating aggregate-value, thus is a cancellation the high-precision value of error.Therefore, high-precision aggregate-value is calculated according to the value of information after correction, and accurately detects the presence or absence of the bias of washings by the aggregate-value, so as to inhibit to be dehydrated being eccentrically rotated for slot in early days.
According to the present invention, there are the bias of washings in judgement dehydration slot, in the case where the rotation stopping for being dehydrated slot, the processing of a certain item of this execution reboot process and correcting process, wherein, reboot process is by rotating dehydration slot again to start again at the processing of the dehydration of washings, and correcting process is the processing being modified to the bias of the washings in dehydration slot
In the case where the bias of the washings small degree not being eccentrically rotated to dehydration slot, dehydration is started again at by reboot process, thus, it is possible to shorten the time used in entire dehydration as far as possible.In the case that dehydration slot also occurs that the degree being eccentrically rotated when the bias of washings arrives greatly dehydration next time, the bias of washings can be reliably corrected by correcting process.
After reboot process performs stipulated number and in the case that dehydration slot stops rotating, the bias of washings arrives greatly the degree for needing to be modified.In this case, no longer the time is wasted in later and repeats reboot process and is dehydrated in the rotation stopping of slot, but promptly execute correcting process, can reliably correct the bias as a result,.Thereby, it is possible to inhibit to be dehydrated being eccentrically rotated for slot in early days.
According to the present invention, in motor from starting to be rotated up in the first boost phase for reaching rotating speed of target, the second boost phase and third boost phase, calculate separately above-mentioned aggregate-value, when the aggregate-value respectively reaches the first boost phase, corresponding first threshold in the second boost phase and third boost phase when, indicate that there are the bias of washings in dehydration slot, to stop the rotation for being dehydrated slot.That is, due to being to start postrotational first boost phase in motor to carry out whether there is or not the detection of the bias of washings, it is thus possible to early stage
Inhibit being eccentrically rotated for dehydration slot.Furthermore, due to being to divide three phases to carry out according to the sequence of the first boost phase, the second boost phase and third boost phase whether there is or not the detection of the bias of washings, the case where bias there are washings thus can be reliably detected out, as far as possible early stage, inhibit being eccentrically rotated for dehydration slot.
According to the present invention, in third boost phase, the duty ratio obtained at the time of by every regulation is transformed into set quota value, and when the index value reaches the second threshold at corresponding moment, indicates that there are the bias of washings in dehydration slot.That is, in third boost phase, the case where whether there is or not bias due to the washings in dehydration slot by using the value of information and first threshold mode and used the mode of duty ratio and second threshold, to carry out double check, it is thus possible to which reliably early stage inhibits being eccentrically rotated for dehydration slot.
According to the present invention, since second threshold is suitably changed according to the aggregate-value of at least one boost phase in the first boost phase, the second boost phase and third boost phase, the thus second threshold by combining the status of dehydration slot to change, the presence or absence of the bias of washings can be accurately detected, so that early stage inhibits being eccentrically rotated for dehydration slot.
According to the present invention, it is dehydrated whether the presence or absence of bias of washings reaches the mode of first threshold by aggregate-value itself in slot and whether the variable quantity of aggregate-value reaches the mode progress double check of third threshold value.In this case, it no matter is dehydrated the state whether slot is in violent oscillatory motion, also can be according to the variable quantity of aggregate-value even if aggregate-value itself is small to not up to first threshold, reliably early stage inhibits being eccentrically rotated for dehydration slot.
According to the present invention, the dehydration slot of dewaterer is the tubular with the central axis along the inclined direction extension relative to up and down direction, and is obliquely configured.The presence or absence of bias of washings carries out double check by the power mode based on the value of information related with the rotation status of motor and the relationship of threshold value and the mechanical mode contacted based on detection unit with outer groove in dehydration slot.
In the dewaterer in factory stage, due to the inclined difference etc. of the dehydration slot between dewaterer individual, certain dewaterers may have the incorrect situation of threshold value.Therefore, in the case where detection unit detects that the difference of the value of information and threshold value when being eccentrically rotated of dehydration slot is specified value or more, or in the case where judging unit judges the bias there are washings before detection unit detects to be eccentrically rotated, threshold value can be corrected.As a result, in the dehydration after corrected threshold, in above-mentioned power mode, the bias of washings can be accurately detected the presence of by the threshold value after correction, so that early stage inhibits being eccentrically rotated for dehydration slot.
According to the present invention, the dehydration slot of dewaterer is the tubular with the central axis along the inclined direction extension relative to up and down direction, and is obliquely configured.Be dehydrated the presence or absence of bias of washings in slot by power mode based on the value of information related with the rotation status of motor and the relationship of threshold value and based on detection unit with
The mechanical mode of outer groove contact carries out double check.
It is assumed that a kind of situation, the vibration for being dehydrated slot is less big, but since the manner of outer groove, detection unit are contacted with outer groove easily, leads to that error detection occurs and the rotation for being dehydrated slot is stopped in mechanical mode.Therefore, until the detection number of detection unit reaches stipulated number before judging unit judges there are the bias of washings, the stopping of the rotation of dehydration slot is shelved.It can prevent the rotation for being dehydrated slot caused by the error detection because of mechanical mode from stopping and inhibiting to be dehydrated being eccentrically rotated for slot in early days as a result,.
Fig. 1 is the schematical vertical profile right view of the dewaterer of an embodiment of the invention.
Fig. 2 is the block diagram for indicating the electric structure of dewaterer.
Fig. 3 is the timing diagram for indicating to constitute the state of the output signal of the Hall IC of revolving speed reading device for the revolving speed for reading motor.
Fig. 4 is the timing diagram for indicating the state for the motor speed being implemented in the dehydration operation process of dewaterer.
Fig. 5 is the schematic diagram for indicating the inside of dehydration slot.
Fig. 6 is the timing diagram of the state of the motor speed in the preparation stage for indicate dehydration operating.
Fig. 7 is the flow chart of the control action in the preparation stage for indicate dehydration operating.
Fig. 8 is the flow chart for indicating the control action of the first boost phase of the motor in dehydration operation process.
Fig. 9 A is indicated respectively and for whether there is or not the flow charts of the related control action of the detection 1~3 of the bias of washings in detection dehydration slot in first~third boost phase of motor.
Fig. 9 B is to indicate flow chart related with the control action of detection 1~3 respectively.
Figure 10 is to combine detection 1~3, indicates the figure of the relationship of count value n and moving average Cn.
Figure 11 is to combine detection 1~3, indicates the figure of the relationship of count value n and aggregate-value G.
Figure 12 is to indicate testing result for the flow chart of the control action in the case where NG.
Figure 13 is the flow chart of the control action in the second boost phase for indicate motor.
Figure 14 is the flow chart of the control action in the third boost phase for indicate motor.
Figure 15 is indicated in third boost phase for detecting the flow chart in dehydration slot whether there is or not the detection 4-1 of the bias of washings and the summary for detecting 4-2.
Figure 16 is the flow chart for indicating the control action about detection 4-1.
Figure 17 is to combine detection 4-1 and detection 4-2, indicates the figure of the relationship of revolving speed and mobile aggregate-value Cm.
Figure 18 is the flow chart for indicating the control action about detection 4-2.
Figure 19 is the flow chart for indicating the first variation of the control action about the detection 3 in third boost phase.
Figure 20 is the schematic diagram for indicating the inside of the dehydration slot in dehydration operation process.
Figure 21 is the flow chart for indicating the second variation of the control action about the detection 3 in third boost phase.
Figure 22 is the flow chart for indicating the control action of the third variation carried out in dehydration operation process.
Figure 23 is the flow chart for indicating the control action of third variation.
Figure 24 is the flow chart for indicating the control action of the 4th variation.
Figure 25 is the flow chart for indicating the control action of 5th variation.
Description of symbols
1: dewaterer；3: outer groove；4: dehydration slot；6: motor；17: central axis；19: balance ring；30: control unit；34: counter；36: safety switch；Cm: mobile aggregate-value；Cn: moving average；dm: duty ratio；Dn: difference；G: aggregate-value；K: inclined direction；N: count value；Q: washings；Z: up and down direction；Z2: lower section.
Hereinafter, being specifically described referring to attached drawing about embodiments of the present invention.
Fig. 1 is the schematical vertical profile right view of the dewaterer 1 of an embodiment of the invention.Up and down direction in Fig. 1 is known as to the up and down direction Z of dewaterer 1, the left and right directions in Fig. 1 is known as to the front-rear direction Y of dewaterer 1, firstly, the summary about dewaterer 1 is illustrated.In up and down direction Z, top is known as top Z1, lower section is known as lower section Z2.In front-rear direction Y, the left in Fig. 1 is known as front Y1, the right in Fig. 1 is known as rear Y2.
Dewaterer 1 includes all devices that can carry out the dehydration operating of washings Q.Therefore, dewaterer 1 not only includes the device with dehydrating function, further includes the washing machine with dehydrating function, clothes washer-dryer.Hereinafter, being illustrated by taking washing machine as an example about dewaterer 1.
Dewaterer 1 includes: casing 2, outer groove 3, dehydration slot 4, rotary wings 5, electric motor 6 and transmission mechanism 7.
Casing 2 is such as made of metal, is formed as box-like.The upper surface 2A of casing 2 is formed as in a manner of side Y2 in the backward upwards Z1 extension and horizontal direction HD is tilted.In upper surface 2A, being formed with makes machine
The inside and outside opening 8 being connected to of shell 2.In upper surface 2A, it is provided with the door 9 for being opened and closed opening 8.In upper surface, the ratio opening 8 of 2A is provided with the operation portion 10 being made of liquid crystal operation panel etc. toward the region of front Y1.User by operating the operating department 10, so as to freely select dehydration conditions, or make operation start to dewaterer 1, the instruction such as operating stops.
Outer groove 3 is such as resin system, is formed as bottomed cylindrical.Outer groove 3 includes circumferential wall 3A, in substantially cylindrical shape, configures along relative to up and down direction Z toward the inclined inclined direction K of front Y1；Bottom wall 3B, Z2 blocks the hollow space of circumferential wall 3A from below；And annular wall 3C annularly will be prominent toward the center of circle side of circumferential wall 3A while the ora terminalis bound edge of the top side Z1 of circumferential wall 3A.Inclined direction K is not tilted only with respect to up and down direction Z, is tilted also relative to horizontal direction HD.In the inside of annular wall 3C, it is formed with the entrance 11 that the hollow space of circumferential wall 3A is communicated to from top Z1.Z2 is opposed with the opening 8 of casing 2 from below for entrance 11, the state in connection.In annular wall 3C, it is provided with the door 12 for being opened and closed entrance 11.Bottom wall 3B is formed as orthogonal with inclined direction K, and HD obliquely extends disk-shaped relative to horizontal direction, in the center location of bottom wall 3B, is formed with the through hole 3D of perforation bottom wall 3B.
It can be with water storage in outer groove 3.What is be connected with the tap of tap water connect from top Z1 with outer groove 3 to water route 13, and tap water to water route 13 by being supplied in outer groove 3.In the midway for giving water route 13, equipped with being opened and closed to start or stop the water-supply valve 14 of water supply.Z2 is connect with outer groove 3 from below on draining road 15, and the water in outer groove 3 is discharged to outside machine from draining road 15.In the midway on draining road 15, equipped with being opened and closed to start or stop the drain valve 16 of draining.
Dehydration slot 4 is such as made of metal, has the central axis 17 extended along inclined direction K, is formed as the bottomed cylindrical enclosed than outer groove 3 small one, can accommodate washings Q in inside.Dehydration slot 4 has along the inclined direction K substantially circumferential wall 4A of cylindrical shape configured the and bottom wall 4B that Z2 blocks the hollow space of circumferential wall 4A from below.
The inner peripheral surface of circumferential wall 4A is the inner peripheral surface for being dehydrated slot 4.The upper end of the inner peripheral surface of circumferential wall 4A is the entrance 18 for making the hollow space of circumferential wall 4A be exposed to top Z1.Z2 is opposed with the entrance 11 of outer groove 3 from below for entrance 18, the state in connection.Entrance 11 and 18 is opened and closed together by door 12.Washings Q is placed in via open opening 8, entrance 11 and 18 and takes out dehydration slot 4 by the user of dewaterer 1.
Coaxially state is contained in outer groove 3 dehydration slot 4, is obliquely configured relative to up and down direction Z and horizontal direction HD.The dehydration slot 4 for being contained in the state in outer groove 3 can be rotated around central axis 17.In the circumferential wall 4A and bottom wall 4B of dehydration slot 4, it is formed with multiple through holes (not shown), the water energy in outer groove 3
It is enough to be to and between outer groove 3 and dehydration slot 4 via the through hole.Therefore, the water level in outer groove 3 is consistent with the water level in dehydration slot 4.
Being formed as hollow cricoid balance ring 19, coaxially state is mounted on the upper end of circumferential wall 4A.The vibration of dehydration slot 4 when balance ring 19 is for reducing rotation is to obtain the component of the spin balancing of dehydration slot 4.In the cricoid cavity 19A of the inside of balance ring 19, the liquid such as the salt water of spin balancing for obtaining dehydration slot 4 are contained with flowing freely.
The bottom wall 4B of dehydration slot 4 is formed as Z1 above and extends roughly in parallel across the bottom wall 3B at interval and outer groove 3 disk-shaped, at bottom wall 4B with the consistent center location of central axis 17, is formed with the through hole 4C for penetrating through bottom wall 4B.In bottom wall 4B, it is provided with and encircles through hole 4C and along the support shaft 20 of the tubulose that Z2 stretches out downwards of central axis 17.Support shaft 20 is inserted into the through hole 3D of the bottom wall 3B of outer groove 3, and the lower end of support shaft 20 is in the lower section Z2 of bottom wall 3B.
The namely so-called impeller of rotary wings 5 is formed as with central axis 17 concentrically configuring in dehydration slot 4 along bottom wall 4B and dehydration slot 4 for the discoid of the center of circle.Rotary wings 5 Z2 from below towards dehydration slot 4 entrance 18 upper surface at, be provided with multiple blade 5A of radial configuration.In rotary wings 5, it is provided with from its center of circle along the rotary shaft 21 that Z2 extends downwards of central axis 17.Rotary shaft 21 is inserted into the hollow space of support shaft 20, and the lower end of rotary shaft 21 is in the lower section Z2 of the bottom wall 3B of outer groove 3.
In the present embodiment, motor 6 is realized by variable-frequency motor.Motor 6 is configured at the lower section Z2 of outer groove 3 in casing 2.Motor 6 has the output shaft 22 pivoted about with central axis 17.Transmission mechanism 7 is located between support shaft 20 and the respective lower end of rotary shaft 21 and the upper end of output shaft 22.Motor 6 is selectively transferred to a side or two sides for support shaft 20 and rotary shaft 21 by transmission mechanism 7 from the driving force that output shaft 22 exports.It can be used well known transmission mechanism as transmission mechanism 7.
When the driving force from motor 6 is transmitted to support shaft 20 and rotary shaft 21, it is dehydrated slot 4 and rotary wings 5 is rotated around central axis 17.In cleaning operating and rinsing operating, the washings Q being dehydrated in slot 4 is stirred by the blade 5A of the dehydration slot 4 and rotary wings 5 that rotate.In addition, in the dehydration operating after rinsing operating, by dehydration slot 4 and the integrated high speed rotation of rotary wings 5, to act on centrifugal force to the washings Q in dehydration slot 4.Washings Q is dehydrated as a result,.The direction of rotation for being dehydrated slot 4 and rotary wings 5 is consistent with the dehydration circumferential X of slot 4.
Fig. 2 is the block diagram for indicating the electric structure of dewaterer 1.
Referring to Fig. 2, dewaterer 1 includes: dehydration preparatory unit, value of information acquisition unit, counting unit, meter
Calculate unit, judging unit, stop unit, information correction unit, execution unit, accelerator module, duty ratio acquisition unit, converter unit, threshold value changing unit, threshold correction unit and the control unit 30 as shelving unit.Control unit 30 is configured to include such as CPU31；The memories such as ROM, RAM 32；Timer 33；And the microcomputer of the counter 34 as counting unit, it is built in casing 2 (referring to Fig.1).
Dewaterer 1 further include: water level sensor 35, safety switch 36 and revolving speed reading device 37 as detection unit.Water level sensor 35, safety switch 36 and revolving speed reading device 37 and above-mentioned motor 6, transmission mechanism 7, water-supply valve 14, drain valve 16 and operation portion 10 are electrically connected with control unit 30 respectively.
The transmitting target of the driving force of motor 6 is switched to the side or two sides of support shaft 20 and rotary shaft 21 by control transmission mechanism 7 by control unit 30.The opening and closing of control unit 30 control water-supply valve 14 and drain valve 16.As described above, control unit 30 receives the selection when user operates dehydration conditions etc. of the operation portion 10 to select washings Q.
Water level sensor 35 is the sensor for the water level for detecting outer groove 3 and being dehydrated slot 4, the real-time input control portion 30 of the testing result of water level sensor 35.
Safety switch 36 is when dehydration slot 4 is eccentrically rotated with the bias of the washings Q in dehydration slot 4, when outer groove being caused to vibrate therewith, the switch for detecting the vibration is configured in casing 2 and is separated out the defined position (referring to Fig.1) being spaced along horizontal direction HD and outer groove 3.When dehydration slot 4 is eccentrically rotated with the bias of the washings Q in dehydration slot 4, when so that outer groove 3 is along horizontal direction HD violent oscillatory motion, outer groove 3 is contacted with its positive lateral safety switch 36.Safety switch 36 becomes "ON" as a result, to mechanically detect that the vibration of outer groove 3 is dehydrated being eccentrically rotated for slot 4.The real-time input control portion 30 of the testing result of safety switch 36.
Revolving speed reading device 37 is the revolving speed for reading motor 6, is strictly speaking the device for reading the revolving speed of output shaft 22 of motor 6, is made of for example multiple Hall ICs 40.The real-time input control portion 30 of revolving speed that revolving speed reading device 37 is read.For control unit 30 according to the revolving speed of input, control is applied to the duty ratio of the voltage of motor 6, to make motor 6 rotate with desired revolving speed.On the other hand, control unit 30 detects dehydration the fact that be eccentrically rotated of slot 4 according to safety switch 36, applies braking to the rotation of motor 6 to make the rotation for being dehydrated slot 4 stop.As brake herein, either control unit 30, which controls duty ratio, makes the rotation emergent stopping of motor 6, it is also possible to by the way that brake gear (not shown) is in addition arranged and control unit 30 is made to start brake gear, to make the rotation emergent stopping of motor 6.
Hall IC 40 in the present embodiment for example in the presence of 3, divide for the first Hall IC 41, the second Hall IC 42, third Hall IC 43 by these Hall ICs 40.Herein, motor 6 has turns with what output shaft 22 rotated integrally
Sub (not shown), in the outer peripheral surface of rotor, the alternately in a row configuration on the direction of rotation of rotor of the magnet of the pole N and the magnet of the pole S.If the group being made of adjacent the pole magnet of N one by one and the pole S magnet referred to as " NS group ", in the outer peripheral surface of rotor, multiple NS groups are arranged side-by-side along direction of rotation.First Hall IC 41, the second Hall IC 42, third Hall IC 43 are equally spaced arranged side-by-side according to this sequence along the direction of rotation of rotor.As rotor rotates, each NS group is along direction of rotation sequentially through each Hall IC 40.When passing through NS group, each Hall IC 40 will issue a pulse P.Revolving speed reading device 37 reads the revolving speed of motor 6 by the size at the interval of adjacent pulse P.
Fig. 3 is the timing diagram for indicating to constitute the state of the output signal of the Hall IC 40 of revolving speed reading device 37.In the timing diagram of Fig. 3, horizontal axis indicates to pass through the moment, and the longitudinal axis indicates the "ON" of the output signal of each Hall IC, "Off" state.As shown in figure 3, at the time of the first Hall IC 41, the second Hall IC 42, third Hall IC 43 generation pulse P, there are deviations.Therefore, when some NS group is sequentially through each Hall IC 40, the first Hall IC 41, the second Hall IC 42 and third Hall IC 43 generate pulse P according to this sequence one by one.
In the waveform of the output signal of each Hall IC 40, the "On" state and the "Off" state other than this that there is the state for indicating to produce pulse P.It will be switched to "On" state from "Off" state, switch to "Off" state from "On" state referred to as " interrupting W ".W is interrupted in a pulse P, is amounted to 2 times at the time of there is generation pulse P and at the time of pulse P disappears.When occurring to interrupt W, the main idea of the situation is from the real-time input control portion 30 of revolving speed reading device 37.It should be noted that the number that the rotor 1 of motor 6 generates interruption W during rotation is different because of the number of poles of motor 6.
As shown in figure 3, existing in the case where 3 Hall IC 40 as in the present embodiment, such as disappear from pulse P1 to next pulse P2 generation in the first Hall IC 41 R, 6 interruption W of the whole generation of 3 Hall ICs 40 during disappearance again.On the whole, it is ideal that it is identical always in the state that motor 6 is stablized and rotated to interrupt W to next interval I for interrupting W from some to 3 Hall ICs 40.
But due to the installation error of the NS group of motor 6, the installation error of each Hall IC 40, even if motor 6 stablizes rotation, interval I is also possible to can be chaotic.It should be noted that usually, interval I can slowly become smaller when motor 6 is acceleration mode.Be spaced I either with chronomere's (such as second) identical value, be also possible to counter 34 (referring to Fig. 2) according to the aggregate value of the counting in each interval I when carrying out 1 counting during fixation.
Then, it is illustrated about the dehydration operating carried out in dewaterer 1.
Fig. 4 is the timing diagram for indicating the state of the revolving speed of motor 6 in dehydration operation process.In the timing diagram of Fig. 4, horizontal axis indicates to pass through the time, and the longitudinal axis indicates the revolving speed (unit: rpm) of motor 6.It needs to illustrate
It is that the revolving speed of the dehydration slot 4 in dehydration operating is identical as the revolving speed of motor 6.
Referring to Fig. 4, in the initial of dehydration operating, the preparation stage for being provided with washings Q dehydration, which is dehydrated, prepares section.Prepare section in dehydration, the washings Q and the positional relationship of the liquid in balance ring 19 in 30 pairs of control unit dehydration slots 4 are adjusted.After dehydration prepares section, control unit 30 starts the rotation of motor 6 so as to washings Q dehydration.
In detail, control unit 30 is after dehydration prepares section, after making the revolving speed of motor 6 accelerate to 120rpm i.e. the first revolving speed from 0rpm, stablizes motor 6 with 120rpm and rotates.First rotating ratio is dehydrated revolving speed (such as 50rpm~60rpm) height that lateral resonance occurs for slot 4, and lower than the revolving speed (such as 200rpm~220rpm) that longitudinal resonance occurs for dehydration slot 4.Under 120rpm stablize rotation after, control unit 30 is stablized motor 6 with 240rpm and is rotated after making the revolving speed of motor 6 accelerate to 240rpm i.e. the second revolving speed from 120rpm.The revolving speed that longitudinal resonance occurs for the second rotating ratio is slightly higher.Then, control unit 30 is stablized motor 6 with 800rpm and is rotated after making the revolving speed of motor 6 accelerate to 800rpm i.e. rotating speed of target from 240rpm.Stablize rotation by the motor 6 under 800rpm, the washings Q being dehydrated in slot 4 is formally dehydrated.
In this way, control unit 30 makes as target first boost phase, second boost phase from 120rpm to 240rpm, third boost phase these three stages from 240rpm to 800rpm of the motor 6 until begin to rotate to 120rpm using 800rpm, makes spinning up for motor 6.It is different from such situation, if motor 6 is accelerated to 800rpm without a break from 0rpm, the hull-borne for draining road 15 may be caused to deteriorate due to once oozing out a large amount of water from washings Q, or make to drain and block up full foam in road 15.But in the present embodiment, due to accelerating motor 6 stepwise in a manner of it will not once ooze out a large amount of water from washings Q, thus such undesirable condition can be prevented.
When be dehydrated slot 4 in washings Q be in be dehydrated slot 4 circumferential X (referring to Fig.1) on uneven distribution bias configuration state when, be dehydrated slot 4 in there are the bias of washings Q.If carrying out dehydration operating in this state, it may be eccentrically rotated due to dehydration slot 4, cause dehydration slot 4 significantly to shake to apply dewaterer 1 big vibration, generate noise.
Therefore, for control unit 30 in dehydration operating, whether there is or not bias by the washings Q in detection dehydration slot 4, and when detecting the presence of bias, stop motor 6.Control unit 30 executes detection 1,4 these four electro-detections of detection 2, detection 3 and detection with this detection mode.It should be noted that the mechanical detection of above-mentioned safety switch 36 (referring to Fig.1) is executed in the entire period of dehydration operating.It should be noted that " detection " this term is meant finds certain result This move in the detection hereinafter, " detection " this term means inspection This move.
Detection 1 is executed in the first boost phase.Detection 2 is executed in the second boost phase.Detection 3 and detection 4 are executed in third boost phase.In detail, detection 1~detection 3 is executed respectively at the entire period in first~third boost phase in corresponding boost phase, in contrast, detection 4 is executed since the midway of third boost phase.In this way, in dewaterer 1, by dividing three phases to accelerate motor 6, thus to avoid lateral resonance occurs, revolving speed, that is, 120rpm, 240rpm of longitudinal resonance these revolving speeds gently execute dehydration while, pass through the rotation status that 1~4 monitoring of detection is dehydrated slot 4.Hereinafter, being illustrated in sequence to the preparation stage of dehydration, detection 1~detection 4.
Firstly, the preparation stage about dehydration is illustrated.Fig. 5 is the schematic diagram for indicating the inside of dehydration slot 4.In Fig. 5, the inside of the dehydration slot 4 when illustrating from the direction of the central axis 17 along dehydration slot 4.In dehydration slot 4, there is the nearby position of Y1 bias and the rearward depth location of Y2 bias forwards.Because central axis 17 is arranged obliquely relative to Y1 in front of up and down direction Z-direction, nearby position is located at Z2 (referring to Fig.1) more on the lower than depth location.Due in the state of being dehydrated the static state of slot 4, dehydration slot 4 carry out pole low speed rotation, it is contained in the effect of centrifugal force caused by the rotation of the liquid of the inside of balance ring 19 not by dehydration slot 4, thus is configured at nearby position due to being focused in balance ring 19 certainly and is biased to lower section Z2.
Washings Q to circumferential X in bias be configured at dehydration slot 4 in the case where, be dehydrated slot 4 rotation start when, washings Q be preferably positioned at across central axis 17 in balance ring 19 bias to the nearby position of lower section Z2 liquid opposite side depth location.If it is this state, just it is eccentrically rotated due to starting the rotation of dehydration slot 4 in the state that the liquid in washings Q with balance ring 19 substantially obtains balance thus being able to suppress dehydration slot 4 from rotation initial stage.
On the contrary, it is assumed that in dehydration slot 4, washings Q is configured in bias in such a way that the liquid being configured in balance ring 19 in bias with Z2 downwards is on the circumferential direction X of dehydration slot 4 in same position.In this condition, it when dehydration slot 4 starts to rotate so as to the dehydration of washings Q, is just eccentrically rotated when dehydration slot 4 is since rotation.
Fig. 6 is the timing diagram for indicating the state of the revolving speed of the motor 6 of preparation stage of dehydration operating.In the timing diagram of Fig. 6, horizontal axis indicates to pass through the time, and the longitudinal axis indicates the revolving speed (unit: rpm) of motor 6.In the preparation stage, it is dehydrated slot 4 and is rotated with extremely low velocity-stabilization.It should be noted that the minimum speed that the rotating ratio dehydration slot 4 of motor 6 resonates at this time is low.The minimum speed is different because being dehydrated the size difference of slot 4, in this case, the revolving speed of lateral resonance, i.e., above-mentioned 50rpm~60rpm occurs for dehydration slot 4.In this case, the revolving speed of the motor 6 of preparation stage is the value of such as 10rpm~30rpm,
It is preferred that 20rpm.
If making to be dehydrated slot 4 in the case where washings Q is configured in dehydration slot 4 in bias to circumferential X with the rotation of pole low-speed stable, the revolving speed of motor 6 can change as shown in Figure 6.In detail, when from nearby depth location is gone in position, since Z1 is mobile upwards by washings Q, burden is caused to motor 6, the revolving speed of motor 6 reduces.On the contrary, since burden before this is reduced, thus the revolving speed of motor 6 rises when going to nearby position from depth location.Therefore, it is known that in the revolving speed highest of motor 6, washings Q is located at nearby position, and when the revolving speed of motor 6 is minimum, washings Q is located at depth location.Make to be dehydrated 4 pole low speed rotation of slot in this way, according to the revolving speed of motor 6, can detect the bias position of the circumferential X of the washings Q in dehydration slot 4.
Fig. 7 is the flow chart for indicating the control action of preparation stage of dehydration operating.
According to the above, control unit 30 makes motor 6 start pole low speed rotation in the preparation stage of dehydration, makes to be dehydrated 4 pole low speed rotation (step S1) of slot.It should be noted that in the case where draining after the rinsing of washings Q in outer groove 3 and dehydration slot 4, according to the status that draining has terminated, starting the pole low speed rotation of the motor 6 of step S1 before dehydration operating.In the state of 6 pole low speed rotation of motor, control unit 30 is according to the output from revolving speed reading device 37 as a result, real-time detection goes out the bias position (step S2) for the washings Q being dehydrated in slot 4.Then, control unit 30 is according to the bias position detected, before washings Q will reach depth location at once, is braked the rotation for making to be dehydrated slot 4 and stops (step S3).
Make the processing mode for the rotation stopping for being dehydrated slot 4 may be due to having little time to stop when the washings Q being dehydrated in slot 4 is across the opposite side for the liquid that central axis 17 is placed exactly in balance ring 19 in bias, dehydration slot 4 is rotated because of inertia when even releasing braking after a stop, finally comes side identical with the liquid in balance ring 19 so as to cause washings Q.
In contrast, control unit 30 stops the rotation for being dehydrated slot 4 before the washings Q in dehydration slot 4 will be located in balance ring 19 opposite side of the liquid of Z2 bias downwards across central axis 17 in bias.Therefore, after stopping, in the washings Q in dehydration slot 4 and in balance ring 19, the liquid of Z2 bias maintains the state for being located at substantially opposite side across central axis 17 to bias downwards.In addition, since dehydration slot 4 supports in a manner of through unilateral bearing only single direction rotation, thus the dehydration slot 4 after stopping will not invert, in static state.After such preparation stage, when dehydration slot 4 is rotated to be dehydrated, rotated in the state of being dehydrated liquid of the slot 4 in balance ring 19 with washings Q substantial equilibrium.Thereby, it is possible to inhibit being eccentrically rotated for the dehydration slot 4 being arranged obliquely in early days.
Then, it is illustrated about by being dehydrated the first boost phase after preparing section.It needs to illustrate
Be, due to after the first boost phase, liquid in balance ring 19 by the effect of centrifugal force, will not Z2 bias downwards, thus the liquid will not cause to be dehydrated being eccentrically rotated for slot 4 substantially.
Fig. 8 is the flow chart for indicating the control action of the first boost phase.Referring to Fig. 8, after preparing section by dehydration, control unit 30 makes motor 6 start to accelerate with 120rpm target to start dehydration operating (step S11).When there are the input of above-mentioned interruption W (being "Yes" in step S12), control unit 30 can all make the count value n of initial value zero add 1 (+1) (step S13).Then, in first boost phase, control unit 30 starts detection 1 (step S14).In the case where detection 1 is " OK " (being "Yes" in step S15), that is, in the case where the bias of washings Q is not present in the judgement of control unit 30, control unit 30 is with the end (being "Yes" in step S16) for detecting 1, by count value n reset-to-zero (step S17).Then, when the revolving speed of motor 6 reaches 120rpm (being "Yes" in step S18), control unit 30 makes motor 6 stablize rotation (step S19) with 120rpm.
Fig. 9 A and Fig. 9 B are the flow charts for indicating the control action about detection 1.Referring to Fig. 9 A, control unit 30 starts detection 1 in above-mentioned steps S14, (being "Yes" in step S21), all acquirement clocking value A whenever there is the input for interrupting Wn(step S22).Hereinafter, can be by clocking value AnReferred to as An。AnIt is the interruption W and its previous interval I (referring to Fig. 3) interrupted between W of input and is the positive value measured by timer 33.In the case where previous interruptions W is not present, being carved into the interval I of initial interruption W at the beginning of the detection 1 is An.It should be noted that when having input interruption W, due to obtaining AnWhile, count value n can add 1 (the step S13), thus AnSuffix letter " n " with plus 1 after count value n it is consistent.Thus, for example, count value n becomes 1, A when inputting initial interruption WnBecome A1.When inputting next interruption W, count value n becomes 2, AnBecome A2。
Then, control unit 30 calculates AnMoving average Bn(step S23).Hereinafter, sometimes by moving average BnReferred to as Bn。BnFor by AnA beforen-1~An-5Aggregate value divided by 6 resulting values.Divided by 6 be in order to disappear from pulse P to next pulse P generation disappear again during R in have the case where 6 interruption W to combine (reference Fig. 3).
Then, control unit 30 calculates BnMoving average Cn(step S24).Hereinafter, sometimes by moving average CnReferred to as Cn。CnFor by BnB beforen-1~Bn-5Aggregate value divided by 6 resulting values.
Control unit 30 when there is interruption W, all can make count value n add 1, successively obtain C in step s 24 under the acceleration mode for the motor 6 for accelerating to rotating speed of target in step S13 (referring to Fig. 8)n.Therefore, count value n adds 1 and CnAcquirement be actually synchronous carry out.That is, control unit 30 is whenever acquirement CnWhen, all count value n can be made to add 1.
Rule of thumb, (being "No" in step S25), the A obtained before this until initial value as defined in reaching until count value nn~CnAnd it is unstable, count value n is not suitable for detection 1.Initial value refers to such as 75 in the present embodiment.When count value n reaches initial value (being "Yes" in step S25), control unit 30 calculates CnSubtract previous Cn-1Resulting difference Dn(step S26).Then, control unit 30 calculates difference DnMoving average En(step S27).Moving average EnFor by difference DnDifference D beforen-1~Dn-5Aggregate value divided by 6 resulting values.Hereinafter, by difference DnReferred to as Dn, by moving average EnReferred to as En。
About DnAnd EnRespective connotation, with C11(=(B6+B7+B8+B9+B10+B11)/6) and C17(=(B12+B13+B14+B15+B16+B17)/6) for be illustrated.C17With the consistent E of count value n17For by D12~D17Divided by 6 resulting values, C is usednFormula (1) described as follows is shown if expression, uses BnFormula (2) described as follows is shown if expression.
E17=(D12+D13+D14+D15+D16+D17)/6
=(C12-C11+C13-C12+C14-C13+C15-C14+C16-C15+C17-C16)/6
=(C17-C11)/6... formula (1)
E17=((B12+B13+B14+B15+B16+B17)-(B6+B7+B8+B9+B10+B11))/36... formula (2)
For 1 Hall IC 40, during disappearing again from pulse P disappearance to next pulse P generation in R, 3 Hall ICs 40 are whole, and there are 6 interruption W (referring to Fig. 3).Pass through Bn, the installation error of Hall IC 40 can be eliminated.Moreover, according to formula (2), EnIt is equivalent to and passes through the related B of the 6 interruption W generated after Hall IC 40 with some NS groupn~Bn+5Aggregate value and pass through the related B of the 6 interruption W generated after the Hall IC 40 with subsequent NS groupn+6~Bn+11Aggregate value difference.By with multiple BnCalculated En, can generally eliminate the error of the relative position of adjacent NS group.
Figure 10 is to indicate count value n and CnRelationship figure, horizontal axis indicate count value n, the longitudinal axis indicate Cn.Referring to Fig.1 0, although AnBecome smaller as the revolving speed occurred by the acceleration of motor 6 increases, but due to the installation error of NS group, the installation error of each Hall IC 40, AnVariation confusion, actual A can occurnIncrease and decrease shown in dotted line.By the rolling average in step S23, the B for eliminating the installation error of each Hall IC 40 is obtainedn, by the rolling average in step S24, obtain and eliminate BnNoise Cn.Then, by CnObtain Dn, by DnObtain En.These An、Bn、Cn、DnAnd EnFor the relevant information value of the rotation status of motor 6.
Since there is no the bias of washings Q so that dehydration slot 4 will not be eccentrically rotated in the case where, Cn
As shown in solid lines in figure 10, it should can reduce with the rising (referring to 1 dash-dot arrows) of the revolving speed of motor 6.In addition, because AnMoving average be Bn, BnMoving average be Cn, so while AnAnd BnEach there is noise, but should be able to also reduce with the rising of the revolving speed of motor 6.
In the case where dehydration slot 4 is not rotated prejudicially, because of the C in the accelerator of motor 6nAlways reducing, so CnSubtract previous Cn-1Resulting difference DnIt becomes zero hereinafter, DnMoving average EnAlso it becomes zero following.Referring to Fig. 9 B, if EnIf being zero or less (being "Yes" in step S28), control unit 30 makes variable FnIt is zero (step S29).On the other hand, when being dehydrated slot 4 due to being eccentrically rotated in dehydration slot 4 there are the bias of washings Q, the C that should reducenIt is possible that can change and rise with the rising of the revolving speed of motor 6.In this case, CnD at the time of risingn、EnBecome larger than zero (being "No" in step S28), control unit 30 is by variable FnIt is set as EnItself (step S30).
Control unit 30 is whenever obtaining FnWhen, it can all calculate FnAggregate-value G (=F1+F2+ ...) (step S31).Aggregate-value G is also CnThan previous Cn-1C in the case where biggernAnd Cn-1Difference DnMoving average EnAggregate-value.
Figure 11 is the figure for indicating the relationship of count value n and aggregate-value G, and horizontal axis indicates that count value n, the longitudinal axis indicate aggregate-value G.In the case where motor 6 is accelerated in the state of being dehydrated slot 4 and being persistently eccentrically rotated, as shown in figure 11, aggregate-value G increases stepwise.For aggregate-value G, first threshold is determined by every defined count value n, these first thresholds are interrelated with count value n and are stored in memory 32 (referring to Fig. 2).First threshold is positive value.
Return to Fig. 9 B, when aggregate-value G when count value n is specified value reaches first threshold when count value n is specified value (being "Yes" in step S32), control unit 30 will test result and be set as NG, and judge that bias is larger in dehydration slot 4, there are the bias (step S33) of washings Q.
On the other hand, if aggregate-value G is smaller than corresponding first threshold (being "No" in step S32), control unit 30 will test result and be set as OK, and judge the bias (step S34) there is no washings Q.Then, until the end value that count value n terminates as the first boost phase of expression (being "No" in step S35), the processing of step S21~S34 is repeated in control unit 30.The end value of count value n in present embodiment is such as 245.When count value n becomes the end value (being "Yes" in step S35), control unit 30 terminates 1 (step S36) of detection.The processing of step S21~S34 is equivalent to the processing of above-mentioned steps S15, and the processing of step S35 and S36 are equivalent to the processing of above-mentioned steps S16 (referring to Fig. 8).
Figure 12 is to indicate testing result for the flow chart of the control action in the case where NG.Referring to Fig.1 2, control unit 30 makes the rotation of motor 6 in the case where judging testing result for NG, that is to say, that makes to be dehydrated slot
4 rotation stops (step S41).It can inhibit in early days being eccentrically rotated for dehydration slot 4 under the acceleration mode of motor 6 there are in the case where the bias of washings Q in dehydration slot 4 as a result,.
In particular, control unit 30 is before calculating aggregate-value G, line is by calculating basis, that is, A of aggregate-value GnIt is corrected by repeatedly carrying out rolling average in step S23, step S24.Therefore, C obtained from the result as correctionnAs the value with high accuracy for eliminating error.Therefore, according to precision by correcting the C got highernAggregate-value G with high accuracy is calculated, and accurately detects the presence or absence of the bias of washings Q by aggregate-value G, can inhibit to be dehydrated being eccentrically rotated for slot 4 in early days.
After dehydration slot 4 stops rotating, control unit 30 judges whether current state is (step S42) before dehydration operating is restarted.Dehydration operating, which is restarted, refers to control unit 30 after making the rotation for being dehydrated slot 4 stopping to stop dehydration operating, immediately by rotating dehydration slot 4 again to start again at the reboot process of dehydration operating.Even if sometimes the bias of washings Q is smaller, it is also possible to will do it reboot process.
In the case where before the restarting of reboot process is not carried out (being "Yes" in step S42), control unit 30 executes reboot process (step S43).It should be noted that the draining in outer groove 3 can be carried out before reboot process with line.Since in the case where foam blocks up set solid water route 15, foam can be discharged to the outside on draining road 15 by draining herein, thus the situation that foam blocks up set solid water route 15 can be eliminated.
If not state before restarting (being "No" in step S42), control unit 30 executes correcting process (step S44).In correcting process, control unit 30 makes it easier to loosen out in water to predetermined water level by opening the water supply into dehydration slot 4 of water-supply valve 14 after closing drain valve 16 so that the washings Q being dehydrated in slot 4 be made to be dipped into.In this state, control unit 30 is dehydrated slot 4 and the rotation of rotary wings 5 by making, so that the washings Q for the inner peripheral surface for being attached to dehydration slot 4 be made to peel off and be stirred, is thus modified to the bias of the washings Q in dehydration slot 4.
In this way, control unit 30 selects any one of an execution reboot process and correcting process in the case where stopping the rotation for being dehydrated slot 4.In the case where the bias of the washings Q small degree that will not be eccentrically rotated to dehydration slot 4, dehydration is started again at by reboot process, the time needed for entire dehydration can be shortened as far as possible as a result,.In the bias of washings Q greatly in the case where being dehydrated degree that slot 4 can be also eccentrically rotated again in next dehydration, by correcting process, can the bias reliably to washings Q be modified.
Control unit 30 is after the reboot process for performing stipulated number (being herein 1 time) and in the case where stopping the rotation for being dehydrated slot 4 (being "No" in step S42), it does not select to execute reboot process, and selects to execute correcting process (step S44).That is, the bias of washings Q has arrived greatly the degree for needing to be modified after the reboot process for performing stipulated number and in the case where stopping the rotation for being dehydrated slot 4.?
In this case, the time is no longer hereafter wasted in reboot process and be dehydrated in the rotation stopping of slot 4, but promptly execute correcting process, reliably correct the bias as a result,.Thereby, it is possible to inhibit to be dehydrated being eccentrically rotated for slot 4 in early days.It should be noted that in the present embodiment, although the stipulated number is set as 1 time, also can be set as 2 times or more.
Then, stablize the second boost phase rotated after terminating about 120rpm to be illustrated.Figure 13 is the flow chart for indicating the control action in third boost phase.Referring to Fig.1 3, control unit 30 starts in the second boost phase using 240rpm as the acceleration (step S51) of the motor 6 of target.Control unit 30 (being "Yes" in step S52) when there is the input for interrupting W, can all add 1 (step S53) to count value n.It should be noted that count value n when the second boost phase starts is zero.
Then, in the second boost phase, control unit 30 starts detection 2 (step S54).In the case where detection 2 is OK (being "Yes" in step S55), that is, judging washings Q in control unit 30, there is no in the case where bias in the second boost phase, control unit 30 is with the end (being "Yes" in step S56) for detecting 2, by count value n reset-to-zero (step S57).Then, when the revolving speed of motor 6 reaches 240rpm (being "Yes" in step S58), control unit 30 makes motor 6 stablize rotation (step S59) with 240rpm.
The content of detection 2 is identical as the content of detection 1.Therefore, the processing of above-mentioned steps S21~S34 is equivalent to the processing of step S55, and the processing of above-mentioned steps S35 and S36 are equivalent to the processing of step S56 (referring to Fig. 9 B).Wherein, the first threshold in detection 2 is set as the first threshold being different from detection 1.In addition, since the rotating ratio detection 1 of motor 6 is higher, correspondingly, the initial value when initial value of step S25 (referring to Fig. 9 A) is than detection 1 is small for detection 2, and in the present embodiment, for example, 17.In the case where the testing result of detection 2 is NG (being "No" in step S55), that is, there are in the case where the bias of washings Q in control unit 30 judges dehydration slot 4, control unit 30 equally executes the processing (referring to Fig.1 2) of step S41~S44 with detection 1.
It should be noted that the duration that the 120rpm duration (referring to Fig. 4) for stablizing rotation can be shorten to stablize than the 120rpm of the previous dehydration operating having ceased rotation is shorter for the dehydration operating under the reboot process after detection 2.For reboot process, since washings Q is attached to the inner peripheral surface of dehydration slot 4 to a certain extent, in substantially having sloughed the state of water, thus the duration that 120rpm stablizes rotation can also be shortened.Thus, it is possible to realize that the time of dehydration operating shortens.
Then, stablize the third boost phase rotated after terminating about 240rpm to be illustrated.Figure 14 is the flow chart for indicating the control action in third boost phase.Referring to Fig.1 4, control unit 30 starts the acceleration (step S61) of motor 6 using 800rpm as target in third boost phase.Control unit 30 is whenever in the presence of interruption
When the input of W (being "Yes" in step S62), 1 (step S63) can be all added to count value n.In addition, count value n when third boost phase starts is zero.
In third boost phase, control unit 30 starts detection 3 (step S64).Then, control unit 30 (being "Yes" in step S65) in the case where detection 3 is OK, that is, in the case where control unit 30 judges the bias there is no washings Q, later, when the revolving speed of motor 6 reaches 800rpm (being "Yes" in step S66), control unit 30 terminates detection 3, and count value n is reset to zero, stablize motor 6 with 800rpm and rotate, continues to be dehydrated (step S67).
The content of detection 3 is roughly the same with detection 1 and 2 respective contents of detection.Therefore, the processing of above-mentioned steps S21~S34 is equivalent to the processing of step S65 (referring to Fig. 9 A and Fig. 9 B).Wherein, the first threshold in detection 3 is set as being different from 2 respective first thresholds of detection 1 and detection.It should be noted that the initial value of the step S25 (referring to Fig. 9 A) in detection 3 is identical as initial value when detection 2.In the case where the testing result of detection 3 is NG (being "No" in step S65), that is, judge to be dehydrated there are in the case where the bias of washings Q in slot 4 in control unit 30, control unit 30 and detection 1 and detection 2 equally execute the processing (referring to Fig.1 2) of step S41~S44.
It should be noted that detection 2 is also as already described, for the dehydration operating under the reboot process after detection 3, the duration that the 20rpm duration for stablizing rotation can be shorten to stablize than the previous 120rpm for being dehydrated operating having ceased rotation is shorter.In addition, for detection 3, it is different from detection 1 and detection 2, after the end value that n becomes step S35 (referring to Fig. 9 B), during the revolving speed of motor 6 reaches 800rpm, it can also repeat the processing of step S21~S34.In the initial of the processing repeated, n and AnThe respective value of~G is reset to zero.
As described above, control unit 30 obtains A respectively in the detection 1 of the first boost phase, the detection 2 of the second boost phase and the detection 3 of third boost phasen~EnDeng the value of information, and count value n is added 1, calculates aggregate-value G.When aggregate-value G reaches corresponding first threshold, the judgement of control unit 30 is dehydrated in slot 4 there are the bias of washings Q and stops the rotation for being dehydrated slot 4.That is, since the detection of the presence or absence of the bias of washings Q is carried out postrotational first boost phase since motor 6, it is thus possible to which early stage inhibits being eccentrically rotated for dehydration slot 4.Furthermore, the detection of the presence or absence of bias due to washings Q divides three phases to carry out according to the sequence of the first boost phase, the second boost phase and third boost phase, thus it can reliably detect that there are the bias of washings Q, so that early stage inhibits being eccentrically rotated for dehydration slot 4 as far as possible.
In detection 3, control unit 30 executes the detection of first mode, the detection of the first mode as described above,
The presence or absence of the bias of the washings Q in dehydration slot 4 is detected according to whether aggregate-value G itself reaches first threshold.Control unit 30 can not also execute the detection of first mode, but execute and detect the detection of second mode of the presence or absence of bias of washings Q according to whether the variable quantity of aggregate-value G reaches third threshold value.Third threshold value is different from first threshold, presets and is stored in memory 32 (referring to Fig. 2).Third threshold value is positive value.As third boost phase, it is risen to a certain degree, such as in the state of 400rpm in the revolving speed of motor 6, it is possible to understand and moisture is eliminated because of dehydration before this due to washings, the eccentric state for the washings Q being dehydrated in slot 4 is caused to deteriorate, so that the vibration of dehydration slot 4 becomes larger.On the other hand, the characteristic as aggregate-value G, as revolving speed is close to rotating speed of target, will become less to rise although aggregate-value G can steeply rise in the state that the revolving speed of motor 6 is low.
Therefore, only for the detection of first mode, in the state that revolving speed rises to certain degree, no matter being dehydrated the vibration of slot 4 and being is small greatly, and aggregate-value G itself may be in the state lower than first threshold, so that the rotation of dehydration slot 4 is difficult to stop.It therefore, can the detection of dual execution first mode and the detection of second mode.For the detection of second mode, when the variable quantity of aggregate-value G, that is, aggregate-value G amplitude of fluctuation reaches third threshold value, there are the bias of washings Q for the judgement of control unit 30, and stop the rotation for being dehydrated slot 4.Thus, no matter state that whether slot 4 be in violent oscillatory motion is dehydrated, aggregate-value G can be small to not up to first threshold, such case also can sensitively react the variation of the state of the washings Q of dehydration midway by being conceived to the variable quantity of aggregate-value G, can reliably inhibit to be dehydrated being eccentrically rotated for slot 4 in early days.Certainly, the detection of second mode can not only execute in detection 3, can also execute in detection 1, detection 2.
Then, about in third boost phase, the detection 4 executed parallel with detection 3 is illustrated.Detection 4 is made of detection 4-1 and detection 4-2.Detection 1~3 be utilized the bias of the washings Q that interrupts W related with the motor 6 under acceleration mode whether there is or not detection, in contrast, detection 4-1 and detect 4-2 be utilized the bias of the washings Q of duty ratio whether there is or not detection.Figure 15 is the flow chart for the summary for indicating detection 4-1 and detecting 4-2.
Referring to Fig.1 5, control unit 30 as third boost phase, starts the acceleration of the motor 6 from 240rpm to 800rpm in above-mentioned steps S61 (referring to Fig.1 4).
In the state that motor 6 has been accelerated, when the revolving speed of motor 6 reaches 300rpm, control unit 30, which obtains, is applied to the duty ratio of the voltage of motor 6 as α value (step S71) at this moment.300rpm does not refer to the revolving speed that water is accumulated in the state of dehydration slot 4, and refers to the revolving speed of the Influence from Eccentric least by dehydration slot 4.Therefore, α value when 300rpm is only by washings Q least by the Influence from Eccentric of dehydration slot 4
Duty ratio in the state of the influence of load.
Moreover, in the state that motor 6 continues acceleration, during revolving speed is from 600pm to 729rpm, 30 examinations 4-1 (step S72) of control unit.In the case where detecting 4-1 and being not OK (being "No" in step S72), that is, in the judgement of control unit 30 there are in the case where the bias of washings Q, control unit 30 equally executes the processing (referring to Fig.1 2) of step S41~S44 with detection 1~detection 3.It should be noted that as in detection 2 and 3 it is stated that as, for the dehydration for detect the reboot process after 4-1 operates, the 120rpm duration for stablizing rotation can shorten to to stablize the duration rotated than the 120rpm of the previous dehydration operating having ceased shorter.
On the other hand, in the case where detecting 4-1 and being OK (being "Yes" in step S72), that is, in control unit 30, in detecting judgement in 4-1, there is no in the case where the bias of washings Q, control unit 30 continues examinations 4-2 (step S77) in the state that motor 6 continues acceleration from 730rpm.
In the case where detecting 4-2 and being OK (being "Yes" in step S77), that is, in control unit 30, in detecting judgement in 4-2, there is no in the case where the bias of washings Q, control unit 30 is after accelerating to the rotating speed of target of 800rpm for motor 6, it is rotated by stablizing motor 6 with 800rpm, to continue the dehydration (step S78) of washings Q.
On the other hand, in the case where detecting 4-2 and being not OK (being "No" in step S77), that is, in the judgement of control unit 30, there are in the case where the bias of washings Q, control unit 30 is by rotating motor 6 with the above-mentioned stabilization of speed less than 800rpm, to continue the dehydration (step S79) of washings Q.
Then, it is described in detail respectively about detection 4-1 and detection 4-2.
Figure 16 is the flow chart for indicating the control action about detection 4-1.Referring to Fig.1 6, for control unit 30 in the state that motor 6 continues acceleration to step S71 (referring to Fig.1 5) later, the revolving speed with motor 6 reaches 600rpm, starts to detect 4-1 (step S80).
Then, control unit 30 begins through counter 34 and is counted (step S81), is just initialized counter 34 by 0.3 second by every, to be counted (step S82 and step S83) by every 0.3 second.
The revolving speed of motor 6 when control unit 30 all obtains counting in each count, be applied to when counting motor 6 voltage duty ratio dm(m: count value) (step S84).That is, control unit 30 reaches from 240rpm the third boost phase of 800rpm in the revolving speed of motor 6, by the revolving speed and duty ratio d for obtaining motor 6 at the time of every regulationm.Duty ratio dmFor the value of information related with the rotation status of motor 6.
In addition, control unit 30 is in step S84, according to formula below (3), to by duty ratio dmResulting corrected value B is corrected with α valuemIt is calculated.It should be noted that the X and Y of formula (3) are logical
Cross the constant that experiment etc. acquires.It is different from simple ratio calculating, weight is changed by formula (3), to correct duty ratio dm, and pass through thus obtained corrected value Bm, can precisely execute detection 4-1.
Bm=dm(α × X+Y) ... formula (3)
In addition, control unit 30 in step S84, calculates corrected value BmMobile aggregate-value Cm(m: count value).Mobile aggregate-value CmFor according to counting sequence continuous 5 corrected value BmCarry out the value after adding up to.In addition, moving aggregate-value C for somemWith its previous mobile aggregate-value Cm-1For, constitute mobile aggregate-value Cm-15 corrected value Bm4 corrected value B of rear sidemWith the mobile aggregate-value C of compositionm5 corrected value BmThe correction B of front side 4mRespectively identical value.It should be noted that in order to constitute mobile aggregate-value CmAnd carry out total corrected value BmQuantity be not limited to above-mentioned 5.Mobile aggregate-value CmFor by control unit 30 by duty ratio dmThe set quota value converted out.
Then, control unit 30 calculates and mobile aggregate-value C according to formula below (4)mRelated second threshold (step S85).Second threshold is positive value.
Second threshold=(revolving speed) × a+b... formula (4)
The a and b of formula (4) are the constant acquired by experiment etc., and storage is in memory 32.In addition, these constants a and b because the revolving speed of the motor 6 at current time, selection dehydration conditions due to it is different.Therefore, for second threshold herein, there are multiple values under identical revolving speed.It should be noted that second threshold is the value not influenced by above-mentioned α value, this case is further clarified by formula (4).
Then, whether control unit 30 confirms the revolving speed of the motor 6 at current time less than 730rpm (step S86).
In the case where the revolving speed of the motor 6 at current time is less than 730rpm (being "Yes" in step S86), control unit 30 judges newest mobile aggregate-value CmWhether fall in the range of detecting 4-1 (step S87).
Figure 17 is to combine detection 4-1 and detection 4-2, indicates revolving speed and mobile aggregate-value CmRelationship figure.In Figure 17, horizontal axis indicates revolving speed (unit: rpm), and the longitudinal axis indicates mobile aggregate-value Cm.Referring to Fig.1 7, for calculated second threshold in step S85, according to the difference of such as dehydration conditions, downside second threshold both threshold values for being set as the upside second threshold indicated with chain-dotted line and being indicated with double dot dash line.Upside second threshold is higher than downside second threshold.Upside second threshold and downside second threshold are respectively with rotation speed change.
In dehydration conditions, there are following three kinds of dehydration conditions: carrying out the dehydration conditions of dehydration operating after the water for being accumulated in dehydration slot 4 is by " water storage rinsing " that washings Q is rinsed, carries out while draining the dehydration conditions for being dehydrated " the water-sprinkling dehydration " of operating, above-mentioned " reboot process " etc. with being directed at washings Q water-sprinkling.These dehydration conditions operate operation portion 10 by user to select, which is received by control unit 30.In dehydration operating after cleaning operating, after water storage rinsing, because washings Q contains a large amount of water, motor
6 acceleration is laborious, but in the case where water-sprinkling dehydration, reboot process, eliminates the state of water from washings Q in a way due to being in, thus the acceleration of motor 6 only needs the power of very little that can realize.
Control unit 30 is in the dehydration operating after cleaning operating, after water storage rinsing, is detected due to second threshold on the downside of use more difficult, thus uses the upside second threshold higher than downside second threshold.On the other hand, control unit 30 detects inaccurate pine, thus use downside second threshold more lower than upside second threshold due to second threshold on the upside of use in water-sprinkling dehydration, the dehydration of reboot process operating.Therefore, either in the case where washings Q contains a large amount of water, or in the case where washings Q eliminates water on to a certain degree, detection 4-1 all is executed using the second threshold for being suitable for respective situation.
Furthermore, based on objective identical with the difference of such dehydration conditions, in the case where more than the load for the washings Q being dehydrated in slot 4, control unit 30 is in detection 4-1, it is detected due to second threshold on the downside of use more difficult, thus uses the upside second threshold higher than downside second threshold.In addition, control unit 30 is in detection 4-1, and due to second threshold on the upside of use, detection is inaccurate, thus use downside second threshold more lower than upside second threshold in the case where the load for the washings Q being dehydrated in slot 4 is few.Therefore, detection 4-1 is executed using the second threshold of the different situation of the load for being respectively suitable for washings Q.
It should be noted that in Figure 17, although being illustrated upside second threshold and downside second threshold both second thresholds, second threshold can also be set as 3 kinds or more according to various dehydration conditions, load.
In addition, eccentric larger and there are (7 dotted lines referring to Fig.1) in the case where the bias of washings Q, the mobile aggregate-value C compared with (solid line reference) the case where the bias of washings Q may be not present in small eccentricity, under every speedmBecome larger.If the bias of washings Q is big, mobile aggregate-value CmIt is a corresponding side in upside second threshold and downside second threshold greater than the second threshold of setting.
Therefore, Figure 16 is returned to, as newest mobile aggregate-value CmWhen reaching the second threshold at corresponding moment, the judgement of control unit 30 is dehydrated in slot 4 there are the bias of washings Q and judges mobile aggregate-value CmFall into the range (be in step S87 " be ") of detection 4-1.
When control unit 30 judges mobile aggregate-value CmWhen falling into the range of detection 4-1 (being "Yes" in step S87), the processing (referring to Fig.1 2) of step S41~S44 is carried out.The processing of step S80~S87 includes in above-mentioned step S72 (referring to Fig.1 5).
Then, in the state of judging the bias there is no washings Q in detecting 4-1, when the revolving speed of motor 6 reaches 730rpm (being "No" in step S86), control unit 30 terminates detection 4-1, then starts to detect 4-2 (step S88).
Figure 18 is the flow chart for indicating the control action about detection 4-2.Referring to Fig.1 8, in the state that motor 6 continues acceleration, control unit 30 reaches 730rpm with the revolving speed of motor 6, to start to detect 4-2 (the step S88).
Then, control unit 30 begins through counter 34 and is counted (step S89), is just initialized counter 34 by 0.3 second by every, to be counted (step S90 and step S91) by every 0.3 second.
Control unit 30 with detection 4-1 in step S84 it is identical, counted every time, the revolving speed of the motor 6 when can all obtain counting and count when be applied to motor 6 voltage duty ratio dm, and calculate corrected value BmWith mobile aggregate-value Cm(step S92).
Then, control unit 30 calculates and mobile aggregate-value C according to above-mentioned formula (4)mRelated second threshold (step S93).Constitute that the constant a and b of the formula (4) is identical as detection 4-1, because the revolving speed of the motor 6 at current time, selection dehydration conditions due to it is different.Therefore, for second threshold herein, under identical revolving speed, there are multiple values as above-mentioned upside second threshold and downside second threshold.
Then, control unit 30 confirms whether the revolving speed of the motor 6 at current time has reached rotating speed of target (800rpm) (step S94).
In the case where the revolving speed miss the mark revolving speed of the motor 6 at current time (being "Yes" in step S94), control unit 30 is identical as (step S87) when detection 4-1, judges newest mobile aggregate-value CmWhether the range (step S95) of detection 4-2 is fallen into.
In detail, referring to Fig.1 7, under eccentric larger the case where there are the bias of washings Q (7 dotted lines referring to Fig.1), compared with the case where the bias of washings Q is not present in small eccentricity (referring to solid line), the mobile aggregate-value C of every speedmBecome larger.If the bias of washings Q is big, mobile aggregate-value CmIt is a corresponding side in upside second threshold and downside second threshold greater than the second threshold of setting.
Therefore, Figure 18 is returned to, if newest mobile aggregate-value CmFor more than the second threshold of setting, the judgement of control unit 30 is dehydrated in slot 4 there are the bias of washings Q and judges mobile aggregate-value CmFall into the range (being "Yes" in step S95) of detection 4-2.
Control unit 30 is judging mobile aggregate-value CmWhen falling into the range of detection 4-2 (in step S95 for "Yes"), the revolving speed L (step S96) of motor 6 of the time point judged when detecting the presence of the bias of washings Q in detection 4-2 is obtained.
Then, control unit 30 is with the revolving speed L of acquirement, strictly speaking, is zero resulting revolving speed by the units house of revolving speed L, so that motor 6 is stablized rotation, continue the dehydration (the step S79) of washings Q as a result,.At this point, control unit 30 extend revolving speed L under dewatering time, so as to obtain with 800rpm this
The rotating speed of target of a script has carried out identical dehydrating effect when dehydration.
Then, in the state that the bias of washings Q is not present in judgement in detecting 4-2, when the revolving speed of motor 6 reaches rotating speed of target (being "No" in step S94), control unit 30 terminates detection 4-2, and rotated by stablizing motor 6 with 800rpm, to continue the dehydration (above-mentioned step S78) of washings Q.
In this way, in third boost phase, since the presence or absence of bias of washings Q in dehydration slot 4 is by using CnEtc. the mode of the values of information and first threshold detect 1~detection 3 and used duty ratio dm4 are detected with the mode of second threshold and carries out double check, it is thus possible to which reliably early stage inhibits being eccentrically rotated for dehydration slot 4.
The invention is not limited to embodiments described above, can make various changes in the range of claim is recorded.
Figure 19 is the flow chart for indicating the first variation of the control action about the detection 3 in third boost phase.It should be noted that for processing step identical with the processing step of other figures, assigning identical number of steps, and omit the detailed description about the processing step in each figure including Figure 19.Referring to Fig.1 9, control unit 30 is identical as above-mentioned detection 3, the acceleration (step S61) for starting motor 6 using 800rpm as target can all add 1 (step S63) when there is the input for interrupting W (being "Yes" in step S62) to count value n.In the third boost phase, control unit 30 starts detection 3 (step S64).Then, control unit 30 (being "Yes" in step S65) in the case where detection 3 is OK, later, when the revolving speed of motor 6 reaches 800rpm (being "Yes" in step S66), control unit 30 terminates detection 3, count value n is reset to zero, stablizes motor 6 with 800rpm and rotates, continues to be dehydrated (step S67).
In first variation, when detection 3, the revolving speed of 30 monitoring motor 6 of control unit be 250~300rpm in the case where G maximum value Gmax(step S68).About maximum value Gmax, defined a reference value more smaller than first threshold is set, storage is in memory 32.If maximum value GmaxIf being once all not above a reference value (in step S68 for "Yes"), control unit 30 will test 4 used in second threshold improve (step S69) without exception.
That is, if the maximum value G of detection 3maxOn the basis of be worth it is following if, be dehydrated slot 4 at least in the state for achieving static balancing.If dehydration slot 4 is in if no matter static dynamic can obtain the state of balance, although being OK in 4 the two of detection 3 and detection, but in the state that dynamic equilibrium is unbalance, even if detection 3 is OK, the oscillation in the pitch mode of dehydration slot 4 also can be sensitively detected by the detection 4 executed parallel.Therefore, it can be envisaged that the C in detection 4mIt is excessive and lead to NG, as a result, although the vibration of outer groove 3 and dehydration slot 4 and little, dehydration slot 4 may occur at the undesirable condition for carrying out stopping rotating when detection 4.
Such undesirable condition in order to prevent, as long as the maximum value G in detection 3maxOn the basis of be worth low value below (in step S68 for "Yes"), control unit 30 will estimate outer groove 3 and be dehydrated slot 4 vibration it is less big, and carry out will test the control that 4 second threshold relaxes in step S69.That is, having used duty ratio dmDetection 4 in error detection prevented by detection 3.
Figure 20 is related to the second variation of control action about detection 3, is the schematic diagram for indicating the inside of the dehydration slot 4 in dehydration operating.For example, washings Q such as Figure 20 (a) in dehydration slot 4 is shown, may be configured in dehydration slot 4 with the state that the central axis 17 across dehydration slot 4 halves the first washings Q1 and the second washings Q.When be dehydrated slot 4 in this state with 800rpm high speed rotation when, it is initially round dehydration slot 4 due to centrifugal force, it is deformed into the elliptical shape that the opposed side as shown in Figure 20 (b) in the first washings Q1 and the second washings Q2 is upwardly formed long side, may be contacted with the circumferential wall 3A of outer groove 3.Such problems in order to prevent, in third boost phase, it is possible to implement the control of the detection 3 of the second variation shown in Figure 21.
Referring to Figure 21, control unit 30 is identical as above-mentioned detection 3, the acceleration (step S61) for starting motor 6 using 800rpm as target can all add 1 (step S63) when there is the input for interrupting W (being "Yes" in step S62) to count value n.In the third boost phase, control unit 30 starts detection 3 (step S64).Then, control unit 30 (being "Yes" in step S65) in the case where detection 3 is OK, later, when the revolving speed of motor 6 reaches 800rpm (being "Yes" in step S66), control unit 30 terminates detection 3, so that count value n is reset to zero, and stablize motor 6 with 800rpm and rotate, continues to be dehydrated (step S67).
About the maximum value G in detection 1max, the defined first reference value smaller than first threshold is set, about the maximum value G in detection 2max, set it is smaller than first reference value as defined in the second a reference value, about detect 3 in motor 6 revolving speed be 250~300rpm in the case where maximum value Gmax, set the defined third a reference value smaller than the second a reference value.The first~tri- a reference value stores in memory 32.
Maximum value G for the detection 3 of the second variation, in previous detection 1maxIt is once all not above first reference value (being "Yes" in step S101), the maximum value G in previous detection 2maxIt is once all not above the second a reference value (being "Yes" in step S102), if the maximum value G in the case that revolving speed of motor 6 is 250~300rpm in current detection 3maxIf being once all not above third a reference value (being "Yes" in step S103), the second threshold that control unit 30 will will test 4 reduces (step S104) without exception.
That is, respective maximum value G in detection 1~3maxNo matter in which detection, as long as if corresponding a reference value smaller value below (in step S101~S103 be "Yes"), the washings Q being dehydrated in slot 4 would be at the state being balancedly distributed in dehydration slot 4 or in fitly dividing as shown in figure 20
At the state at two.
Therefore, respective maximum value G in detection 1~3maxNo matter in which detection, as long as if corresponding a reference value lesser value below (being "Yes" in step S101~S103), assuming that the washings Q in dehydration slot 4 is in the state being divided at two, second threshold will be forced down (step S104) by control unit 30.Thus, in the detection 4 executed parallel with detection 3, before dehydration slot 4 is substantially deformed to elliptical shape, 4-2 NG is detected by making in step S95, to which dehydration operating (referring to Fig.1 8) can be continued to be dehydrated slot 4 and the discontiguous revolving speed of outer groove 3 in step S79.
As previously discussed, in variation 1 and variation 2, according to the maximum value G of the aggregate-value G in the first boost phase, the second boost phase and third boost phase at least one boost phasemax, control unit 30 suitably changes second threshold.Therefore, by the second threshold for the status for being changed to be suitble in dehydration slot 4, the presence or absence of the bias of washings Q can be detected with high accuracy, so that early stage inhibits being eccentrically rotated for dehydration slot 4.It should be noted that the control of variation 1 and variation 2 can also carry out parallel.
Figure 22 and Figure 23 is the flow chart for indicating the control action of the third variation carried out in dehydration operating.As described above, the dewaterer 1 can be dehydrated being eccentrically rotated for slot 4 by 1~4 electro-detection of detection, and being eccentrically rotated for dehydration slot 4 can also be mechanically detected by safety switch 36.That is, the presence or absence of bias of washings Q is doubly detected by power mode and mechanical mode, wherein power mode is to rotate to the relevant information value i.e. aggregate-value G of the rotation status of the motor 6 of 800rpm, mobile aggregate-value CmWith the mode detected based on first threshold, the relationship of second threshold, mechanical mode is to contact the mode of the detection carried out with outer groove 3 by safety switch 36.Therefore, control unit 30 stops the rotation for being dehydrated slot 4 according to the generation for judging that the case where there are the bias of washings Q and safety switch 36 detect any case in the case where being eccentrically rotated of dehydration slot 4 in detection 1~4.
Either mechanical detection or electro-detection are desirable in synchronization and detect being eccentrically rotated for dehydration slot 4.But, in the dewaterer 1 in factory stage, due to the dehydration slot 4 between the individual because of dewaterer 1 heeling error etc. caused by be dehydrated slot 4 and safety switch 36 relative position difference, the first threshold of possible certain dewaterers 1, second threshold can be improper, thus generation time deviation between mechanical detection and electro-detection.So, when using dewaterer 1, by correcting first threshold, second threshold, this deviation can be eliminated.Hereinafter, although the case where detecting the first threshold in 1 to correction is illustrated, but be not limited to that the case where only correction detects the first threshold in 1, may also correct for the first threshold in detection 2~3, the second threshold in detection 4.
Referring to Figure 22, control unit 30 revolves dehydration slot 4 with the beginning of the initial dehydration operating after factory
Turn and starts dehydration (step S111).It is dehydrated along with starting, carries out detection 1 in the first boost phase.At this point, control unit 30 is using count value n at this time as n when the starting of safety switch 36 becomes "ON" (being "Yes" in step S112)x, using aggregate-value G at this time as Gx(step S113).Count value n is nxWhen first threshold be n in the present embodimentxSubtract the resulting value of the first specified value.First specified value is positive value.
Just now first threshold subtracts G to the judgement of control unit 30xWhether resulting value is the second specified value J or more (step S114).Second specified value J is positive value.In first threshold and GxDifference be (being "No" in step S114) in the second specified value J situation below, between detecting to be eccentrically rotated due to detection 1 and going out to be eccentrically rotated by safety switch 36, time deviation is substantially not present, therefore it can judge that first threshold is appropriate, therefore change of the control unit 30 without first threshold, remain in operation (step S115).
In first threshold and GxDifference be the second specified value J or more in the case where (being "Yes" in step S114), between capable of judging that detection 1 detects to be eccentrically rotated and detects to be eccentrically rotated by safety switch 36, there are time deviations, therefore can judge can be more much slower than safety switch 36 at the time of detecting to be eccentrically rotated by detection 1.But since this deviation is also likely to be occurrent, thus control unit 30 can add 1 (step S116) to the correction candidate value U for being zero when dispatching from the factory for the time being.Correction candidate value U after adding 1 is less than in the case where defined upper limit value (being herein 3) (being "No" in step S117), and change of the control unit 30 without first threshold, remain in operation (step S118).
On the other hand, in the case where adding the correction candidate value U after 1 to reach upper limit value (being "Yes" in step S117), due to detection 1 detect to be eccentrically rotated and by safety switch 36 detect to be eccentrically rotated between there will naturally be time deviation, thus current first threshold is not appropriate.Therefore, control unit 30 is set as new first threshold by the way that the first threshold is subtracted the second resulting value of specified value J just now, is allowed to force down (step S119) to change first threshold.Then, control unit 30 makes correction candidate value U be reset to zero (step S120), and remain in operation (step S121).
In this way, control unit 30 detects aggregate-value G when being eccentrically rotated of dehydration slot 4 in safety switch 36xDifference with first threshold is (being "Yes" in step S114) in the case that regulation is above, is corrected (step S119) to first threshold.As a result, in the detection 1 of the dehydration after first threshold correction, by the first threshold after correction, the presence or absence of the bias of washings Q can be detected with detecting in high precision, so that early stage inhibits being eccentrically rotated for dehydration slot 4.
Referring to Figure 23, under the situation that safety switch 36 does not start (being "No" in step S112), if aggregate-value G is no more than first threshold (being "No" in step S131), control unit 30 is just without most
The change (step S132) for the correction candidate value V for being just zero, remain in operation (step S133).
On the other hand, under the situation that safety switch 36 does not start (being "No" in step S112), when aggregate-value G reaches first threshold, detecting 1 testing result becomes when NG (being "Yes" in step S131), and count value n at this time is set as n by control unit 30y, aggregate-value G at this time is set as Gy.Count value n is nyWhen first threshold be in the present embodiment nySubtract the above-mentioned resulting value of the first specified value.
Control unit 30 judges GyIt whether is first threshold just now plus the resulting value T or more (step S135) of third specified value.Third specified value is positive value.In GyIn the case where less than T (being "No" in step S135), between detecting to be eccentrically rotated due to detection 1 and detecting to be eccentrically rotated by safety switch 36, substantially there is no time deviations, therefore it can judge that first threshold is appropriate, thus change of the control unit 30 without first threshold, remain in operation (step S136).
In GyIn the case where for T or more (being "Yes" in step S135), between capable of judging that detection 1 detects to be eccentrically rotated and detects to be eccentrically rotated by safety switch 36, there are time deviation, detection 1 is more much earlier than safety switch 36 at the time of detecting to be eccentrically rotated.But since this deviation is likely to be occurrent, thus correction candidate value V can be added 1 (step S137) for the time being by control unit 30.In the case where adding the correction candidate value V after 1 to be less than defined upper limit value (being herein 3) (being "No" in step S138), change of the control unit 30 without first threshold, remain in operation (step S139).
On the other hand, in the case where adding the correction candidate value V after 1 to reach upper limit value (being "Yes" in step S138), due to detection 1 detect to be eccentrically rotated and by safety switch 36 detect to be eccentrically rotated between there will naturally be time deviation, thus first threshold is not appropriate.Therefore, control unit 30, which passes through, is set as new first threshold plus the resulting value of third specified value just now for the first threshold, so that it is relaxed (step S140) to change first threshold.Then, control unit 30 is zero (step S141) by candidate value v reset is corrected, and remain in operation (step S142).
In this way, control unit 30 judges that there are, (as "Yes" in step S131), be corrected (step S140) to first threshold in the case where the bias of washings Q before safety switch 36 detects to be eccentrically rotated.As a result, in the detection 1 of the dehydration after first threshold correction, by the first threshold after correction, having for the bias of washings Q can be detected with high accuracy, so that early stage inhibits being eccentrically rotated for dehydration slot 4.It should be noted that the variation 3 can also be combined with other variations 1,2.
Then, it is illustrated about the 4th variation.About safety switch 36, it is envisaged that following situations: although dehydration slot 4 vibration and less greatly, due to the manner of outer groove 3, will lead to safety switch 36 and contact and start with outer groove 3 easily.In order to prevent because of the error detection of such mechanical mode caused by
The rotation for being dehydrated slot 4 stops, and the control action of the 4th variation and detection 1 carry out parallel.In the control action of the 4th variation, the threshold value (be set as fourth threshold value) different from first threshold is used.4th threshold value is also possible to value identical with first threshold, it is preferred that the value lower than first threshold.Hereinafter, being illustrated premised on the 4th threshold value is more lower than first threshold.
Figure 24 is the flow chart for indicating the control action of the 4th variation.Referring to Figure 24, control unit 30 makes to be dehydrated the rotation of slot 4 and starts dehydration (step S151) with the beginning of dehydration operating.Along with dehydration, detection 1 is carried out in the first boost phase.At this point, aggregate-value G at this time is set as G by control unit 30 when the starting of safety switch 36 becomes "ON" (being "Yes" in step S152)Z(step S153).
Control unit 30 judges GZIt whether is the 4th threshold value or more (step S154).If GZMore than the 4th threshold value (being "Yes" in step S154), due to detection 1 detect to be eccentrically rotated and detect to be eccentrically rotated by safety switch 36 at the time of be considered as it is substantially uniform, so the result that the starting of safety switch 36 is detected by safety switch 36 is normal.Therefore, the judgement of control unit 30 makes the rotation for being dehydrated slot 4 stop (step S155) there are the bias of washings Q.It should be noted that, due to being performed simultaneously detection 1, even if thus in the state that safety switch 36 does not start (being "No" in step S152), when aggregate-value G becomes first threshold or more (being "Yes" in the step S32 of Fig. 9 B), control unit 30 also judges that there are the bias of washings Q (the step S33 of Fig. 9 B), and the rotation for being dehydrated slot 4 is made to stop (the step S41 of Figure 12).
On the other hand, the G when safety switch 36 startsZIn the case where less than the 4th threshold value (being "No" in step S154), the judgement of control unit 30 is dehydrated the with small vibration to that can ignore of slot 4, is considered as 36 error starting of safety switch, remain in operation (step S156).It is able to achieve the raising of the success rate of dehydration operating as a result,.
But, when hereafter, safety switch 36 is again started up in the state of operating continuation, when the number of starts of safety switch 36 reaches stipulated number (being herein 3 times) when dehydration starting (being "Yes" in step S157), control unit 30 judges that the starting of safety switch 36 is normal, there are the bias of washings Q, and the rotation for being dehydrated slot 4 is made to stop (step S155).In other words, it is known that judge to detect until the number being eccentrically rotated reaches stipulated number that control unit 30 shelves the stopping of the rotation of dehydration slot 4, remains in operation (as "No" in step S157) there are the safety switch 36 before the bias of washings Q.Thereby, it is possible to prevent because use the mechanical mode of safety switch 36 error detection caused by be dehydrated the rotation stopping of slot 4, and early stage inhibits dehydration slot 4 to be eccentrically rotated.It should be noted that stipulated number herein is not limited to above-mentioned 3 times, it is also possible to 1 time.Furthermore it is preferred that executing the control action of variation 4 in the first boost phase of the revolving speed as low as the degree that there is no problem ignoring the starting of safety switch 36 in step S156.Certainly, which can also combine with other variations 1,2,3.
In addition, the variation 5 of the further variation as variation 4, can also carry out control action shown in Figure 25.In variation 5, the step S153 and S154 of variation 4 are omitted.In this case, since dehydration starting (step S151), even if the starting of safety switch 36 becomes "ON" (being "Yes" in step S152), if the number of starts of safety switch 36 does not reach stipulated number (being herein 3 times) (being "No" in step S157), control unit 30 also judges 36 error starting of safety switch and remains in operation (step S156).But as noted previously, as be performed simultaneously detection 1, thus when aggregate-value G becomes first threshold or more (being "Yes" in the step S32 of Fig. 9 B), control unit 30 can make the rotation for being dehydrated slot 4 stop (the step S41 of Figure 12).That is, control unit 30 can ignore the starting of the safety switch 36 within 2 times if aggregate-value G is less than first threshold.
On the other hand, when the number of starts of safety switch 36 reaches 3 times (being "Yes" in step S157), the result that the judgement of control unit 30 is detected by safety switch 36 is normal, and there are the bias of washings Q, so that the rotation for being dehydrated slot 4 be made to stop (step S155).In other words, even variation 5, also identical as variation 4, (as "No" in step S157) until judging to detect that the number being eccentrically rotated reaches stipulated number there are the safety switch 36 before the bias of washings Q, control unit 30 shelves the stopping of the rotation of dehydration slot 4, remains in operation.Variation 5 can also be combined in addition to variation 4 with other variations 1,2,3.But, in variation 4, since the 4th threshold value that will be lower than first threshold judges as benchmark the presence or absence of the error starting of safety switch 36 (referring to Figure 24), it is thus possible to which carly fruit drop more than variation 5 stops the rotation for being dehydrated slot 4 there are the bias of washings Q.
In the above embodiment, the case where being variable-frequency motor using motor 6, is used as premise, controls motor 6 using duty ratio, but in the case where motor 6 is brush motor, controls motor 6 instead of duty ratio using the value for the voltage for being applied to motor 6.
In addition, in the above description, although revolving speed has used the specific numerical value such as 120rpm, 240rpm, 800rpm, these specific values are the values being varied according to the performance of dewaterer 1.In addition, in the above description, in detection 1~3, although with moving average CnOn the basis of calculate aggregate-value G, but if there is no the influence of error etc., the other value of information A that can also will should reduce with the rising of the revolving speed of motor 6n、BnIn any one value of information aggregate-value G is calculated as benchmark.In addition, although above-mentioned aggregate-value G is moving average EnAggregate-value, but if there is no the influence of the error of the relative position of above-mentioned NS group, be also possible to difference DnAggregate-value.In addition, in detection 4, although obtaining duty ratio for judging, the duty ratio either the duty ratio obtained initial data, be also possible to the corrected value after being corrected as needed, can also be as above-mentioned movement is accumulative
Value CmLike that by the transformed index value of duty ratio.
Claims (10)
- A kind of dewaterer characterized by comprisingIt is dehydrated slot, the tubular of the central axis along the inclined direction extension relative to up and down direction is formed to have, accommodates washings, and rotated so that washings to be dehydrated around the central axis；Balance ring is formed as the hollow ring-type that coaxially state is installed on the dehydration slot, and in internal contain the spin balancing for obtaining dehydration slot liquid with flowing freely；AndIt is dehydrated preparatory unit, in the preparation stage of the dehydration of washings, by rotating the dehydration slot with the low revolving speed of the minimum speed to resonate than the dehydration slot, to detect the bias position of the washings in the dehydration slot, and stop the rotation of the dehydration slot before the washings in the dehydration slot will be located in balance ring the opposite side of the liquid of bias downwards across central axis in bias.
- A kind of dewaterer characterized by comprisingIt is dehydrated slot, the tubular of the central axis along the inclined direction extension relative to up and down direction is formed to have, accommodates washings, and rotated so that washings to be dehydrated around the central axis；Electric motor rotates the dehydration slot；Value of information acquisition unit successively obtains the value of information that reduce with the rising of the revolving speed of the motor in the motor using the rotating speed of target for washings to be formally dehydrated as under the acceleration mode that target accelerates；Counting unit makes the count value of initial value zero add 1 when the value of information acquisition unit obtains the value of information；Computing unit, calculate the value of information it is bigger than the previous value of information in the case where the value of information and the previous value of information difference aggregate-value；Judging unit when the aggregate-value when the count value is specified value reaches the first threshold when count value is the specified value, judges that there are the bias of washings in the dehydration slot；AndStop unit, in judging unit judgement, there are the rotation stoppings the in the case where bias of washings, making the dehydration slot.
- Dewaterer according to claim 2, which is characterized in that further include information correction unit, before calculating the aggregate-value using the computing unit, first pass through rolling average and the value of information is corrected.
- Dewaterer according to claim 2 or 3, which is characterized in that described including execution unit Execution unit is in the case where the stop unit stops the rotation of the dehydration slot, select any one of an execution reboot process and correcting process, wherein, reboot process is by rotating the dehydration slot again to start again at the processing of the dehydration of washings, correcting process is the processing being modified to the bias of the washings in the dehydration slotAfter the reboot process performs stipulated number and in the case that the stop unit stops the rotation of the dehydration slot, the execution unit does not select to execute the reboot process, but selects to execute the correcting process.
- According to described in any item dewaterers of claim 2~4, which is characterized in that including accelerator module, the accelerator module makes spinning up for the motor with the first boost phase, the second boost phase, these three stages of third boost phase, whereinFirst boost phase refer to the motor towards the rotating speed of target, from start to be rotated up reach higher than the revolving speed that lateral resonance occurs for the dehydration slot and lower than the revolving speed that longitudinal resonance occurs for the dehydration slot the first revolving speed until boost phase,Second boost phase is the boost phase until from first revolving speed to the second revolving speed higher than first revolving speed,Third boost phase is the boost phase until second revolving speed to the rotating speed of target,The first threshold is independently set in first boost phase, second boost phase and the third boost phase respectively,The value of information acquisition unit obtains the value of information in first boost phase, second boost phase and the third boost phase respectively, the counting unit makes the count value add 1, the computing unit calculates the aggregate-value, when the aggregate-value reaches the first threshold, the judging unit judges that there are the bias of washings in the dehydration slot.
- Dewaterer according to claim 5 characterized by comprisingDuty ratio acquisition unit is applied to the duty ratio of the voltage of the motor by acquirement at the time of every regulation in the third boost phase；AndDuty ratio acquired by the duty ratio acquisition unit is transformed to set quota value by converter unit,When the index value reaches the second threshold at corresponding moment, the judging unit judges that there are the bias of washings in the dehydration slot.
- Dewaterer according to claim 6, which is characterized in that including threshold value changing unit, the threshold value changing unit accelerates rank according to first boost phase, second boost phase and the third The aggregate-value of at least any one boost phase in section, changes the second threshold.
- According to described in any item dewaterers of claim 5~7, which is characterized in that when the variable quantity of the aggregate-value reaches third threshold value, the judging unit judges that there are the bias of washings in the dehydration slot.
- A kind of dewaterer characterized by comprisingIt is dehydrated slot, the tubular of the central axis along the inclined direction extension relative to up and down direction is formed to have, accommodates washings, and rotated so that washings to be dehydrated around the central axis；Outer groove accommodates the dehydration slot；Electric motor rotates the dehydration slot；Judging unit judges that there are the bias of washings in the dehydration slot when the related value of information of the rotation status of the motor until reaching the rotating speed of target for washings to be formally dehydrated with the revolving speed of the motor reaches threshold value；Detection unit, when the dehydration slot is eccentrically rotated with the bias of the washings in the dehydration slot, when the outer groove being caused to vibrate, by being contacted with the outer groove, so that row mechanically detects the eccentric rotation of the dehydration slot；The case where stop unit, there are the bias of washings according to judging unit judgement and the detection unit detect dehydration being eccentrically rotated of slot in the case where any case generation, stop the rotation of the dehydration slot；AndThreshold correction unit, when the detection unit detects when being eccentrically rotated of slot of dehydration, in the case that the difference of the value of information and the threshold value is specified value or more, or when the judging unit judges to be corrected the threshold value there are in the case where the bias of washings before the detection unit is detected and is eccentrically rotated.
- A kind of dewaterer characterized by comprisingIt is dehydrated slot, the tubular of the central axis along the inclined direction extension relative to up and down direction is formed to have, accommodates washings, and rotated so that washings to be dehydrated around the central axis；Outer groove accommodates the dehydration slot；Electric motor rotates the dehydration slot；Judging unit judges that there are the bias of washings in the dehydration slot when the related value of information of the rotation status of the motor until reaching the rotating speed of target for washings to be formally dehydrated with the revolving speed of the motor reaches threshold value；Detection unit, when the dehydration slot is eccentrically rotated with the bias of the washings in the dehydration slot, when the outer groove being caused to vibrate, by being contacted with the outer groove, to mechanically detect being eccentrically rotated for the dehydration slot；The case where stop unit, there are the bias of washings according to judging unit judgement and the detection unit detect dehydration being eccentrically rotated of slot in the case where any case generation, stop the rotation of the dehydration slot；AndShelving unit shelves the stopping of the rotation of the dehydration slot carried out by the stop unit until the detection number of the detection unit reaches stipulated number before the judging unit judges there are the bias of washings.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014252413A JP6467703B2 (en) | 2014-12-12 | 2014-12-12 | Dehydrator |
| JP2014-252413 | 2014-12-12 | ||
| PCT/CN2015/097173 WO2016091215A1 (en) | 2014-12-12 | 2015-12-11 | Dehydrator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107109749A true CN107109749A (en) | 2017-08-29 |
| CN107109749B CN107109749B (en) | 2019-11-12 |
Family
ID=56106744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580067405.XA Active CN107109749B (en) | 2014-12-12 | 2015-12-11 | Dewaterer |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20170321363A1 (en) |
| EP (1) | EP3231918A1 (en) |
| JP (1) | JP6467703B2 (en) |
| KR (1) | KR101917973B1 (en) |
| CN (1) | CN107109749B (en) |
| WO (1) | WO2016091215A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10829916B2 (en) * | 2017-04-26 | 2020-11-10 | Delta Faucet Company | User interface for a faucet |
| JP7252534B2 (en) * | 2018-11-26 | 2023-04-05 | 青島海爾洗衣机有限公司 | Dehydrator |
| KR20230126131A (en) * | 2022-02-22 | 2023-08-29 | 삼성전자주식회사 | Washing machine and controlling method for the same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11123295A (en) * | 1997-10-23 | 1999-05-11 | Mitsubishi Electric Corp | Correcting device for unbalance in spin-drier |
| JPH11128592A (en) * | 1997-10-31 | 1999-05-18 | Mitsubishi Electric Corp | Imbalance controller for dryer |
| JP2008073311A (en) * | 2006-09-22 | 2008-04-03 | Mitsubishi Electric Corp | Inclined-type washing machine |
| CN102251367A (en) * | 2010-05-20 | 2011-11-23 | 三洋电机株式会社 | Washing machine |
| JP2011240040A (en) * | 2010-05-20 | 2011-12-01 | Sanyo Electric Co Ltd | Washing machine |
| JP2013220255A (en) * | 2012-04-18 | 2013-10-28 | Toshiba Corp | Washing machine |
Family Cites Families (42)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4054412A (en) * | 1976-12-09 | 1977-10-18 | General Electric Company | Clothes washing machine and method of washing clothes |
| JPH02297399A (en) * | 1989-03-27 | 1990-12-07 | Hitachi Ltd | Dryer and washer combinedly used as dryer |
| JPH03186292A (en) * | 1989-12-18 | 1991-08-14 | Hitachi Ltd | Washing machine |
| US5887456A (en) * | 1995-08-30 | 1999-03-30 | Sharp Kabushiki Kaisha | Drum type drying/washing machine |
| JPH09313766A (en) * | 1996-01-31 | 1997-12-09 | Sharp Corp | Drum type drying/washing mace, drum type drier, and operating method for drum type drying/washing machine |
| JP3171568B2 (en) * | 1997-08-29 | 2001-05-28 | 株式会社東芝 | Washing machine |
| JP3311668B2 (en) * | 1998-03-06 | 2002-08-05 | 三洋電機株式会社 | Drum type centrifugal dehydrator |
| JP3423270B2 (en) * | 2000-03-30 | 2003-07-07 | 三洋電機株式会社 | Drum type washing machine |
| KR100347760B1 (en) * | 2000-04-19 | 2002-08-09 | 엘지전자주식회사 | Washing machine having tilting washing drum |
| US6578225B2 (en) * | 2000-05-25 | 2003-06-17 | Skf Autobalance Systems Ab | Low-speed prebalancing for washing machines |
| CN1183283C (en) * | 2000-06-23 | 2005-01-05 | 惠尔普尔公司 | Method and hanging system for reducing displacement of dolly tub during high speed dewatering circulation |
| JP2002028393A (en) * | 2000-07-13 | 2002-01-29 | Sanyo Electric Co Ltd | Fully automatic washing machine |
| JP3651595B2 (en) * | 2001-12-13 | 2005-05-25 | 株式会社東芝 | Inverter device for washing machine and inverter device for washing dryer |
| KR100471350B1 (en) * | 2002-05-17 | 2005-03-08 | 엘지전자 주식회사 | Control method of dehydration for a drum washing machine |
| JP2004130059A (en) * | 2002-10-10 | 2004-04-30 | Lg Electronics Inc | Spin-drying operation controlling method for drum type washing machine |
| KR100493300B1 (en) * | 2002-11-25 | 2005-06-07 | 엘지전자 주식회사 | Apparatus and Method for Controlling Dehydrating Course of The Washing Machine |
| KR20040059222A (en) * | 2002-12-28 | 2004-07-05 | 엘지전자 주식회사 | method for detecting unbalance of dehydration tub and method for controlling operation of washing machine by using the same |
| KR100504866B1 (en) * | 2003-01-15 | 2005-08-01 | 엘지전자 주식회사 | Method for controlling dehydration speed of drum washing machine |
| KR100480133B1 (en) * | 2003-01-16 | 2005-04-07 | 엘지전자 주식회사 | Drum type washing machine and drive control method thereof |
| JP3977762B2 (en) * | 2003-03-06 | 2007-09-19 | 株式会社東芝 | Drum washing machine |
| JP2004321320A (en) * | 2003-04-22 | 2004-11-18 | Sharp Corp | Washing machine |
| US7591038B2 (en) * | 2003-04-28 | 2009-09-22 | Emerson Electric Co., | Method and system for operating a clothes washing machine |
| US7905122B2 (en) * | 2003-04-28 | 2011-03-15 | Nidec Motor Corporation | Method and system for determining a washing machine load unbalance |
| KR100671193B1 (en) * | 2003-06-06 | 2007-01-18 | 산요덴키가부시키가이샤 | Drum type washing machine |
| US7721462B2 (en) * | 2003-07-25 | 2010-05-25 | Lg Electronics Inc. | Semi-dry method of washing machine and the ventilating structure, control apparatus for the same |
| KR100587307B1 (en) * | 2004-06-09 | 2006-06-08 | 엘지전자 주식회사 | Drum type washing machine and drum of drum type washing machine |
| JP4563120B2 (en) * | 2004-09-13 | 2010-10-13 | パナソニック株式会社 | Drum washing machine |
| US8033145B2 (en) * | 2005-05-13 | 2011-10-11 | Sharp Kabushiki Kaisha | Drum-type washing machine |
| JP2007050114A (en) * | 2005-08-18 | 2007-03-01 | Toshiba Corp | Washing machine |
| JP4822974B2 (en) * | 2006-08-02 | 2011-11-24 | 三洋電機株式会社 | Washing machine |
| KR101156713B1 (en) * | 2006-11-06 | 2012-06-15 | 삼성전자주식회사 | Drum Washing machine and control method thereof |
| WO2009061220A2 (en) * | 2007-11-08 | 2009-05-14 | Fisher & Paykel Appliances Limited | Slow speed drive method for an electronically commutated motor, controller implementing same, washing machine incorporating same |
| CN102209808A (en) * | 2008-09-10 | 2011-10-05 | 拉斯.伯蒂尔.卡尼哈马 | Method, system and device for reducing vibration in an article processing machine, such as a washing machine |
| JP2010125083A (en) * | 2008-11-27 | 2010-06-10 | Samsung Electronics Co Ltd | Rotating apparatus having ball balancer |
| AU2009327647B2 (en) * | 2008-12-17 | 2012-07-19 | Fisher & Paykel Appliances Limited | A laundry machine |
| DE102010002048A1 (en) * | 2010-02-17 | 2011-08-18 | BSH Bosch und Siemens Hausgeräte GmbH, 81739 | Method for setting a spin speed of a drum of a domestic appliance for the care of laundry items |
| JP2012120687A (en) * | 2010-12-08 | 2012-06-28 | Samsung Yokohama Research Institute Co Ltd | Rotating device having ball balancer |
| KR20120100321A (en) * | 2011-03-03 | 2012-09-12 | 엘지전자 주식회사 | A control method of washing machine |
| US9518351B2 (en) * | 2013-11-13 | 2016-12-13 | Haier Us Appliance Solutions, Inc. | Washing machine appliance |
| US9163346B2 (en) * | 2014-01-29 | 2015-10-20 | Alliance Laundry Systems, Llc | Washing machine control system and methods |
| US10066333B2 (en) * | 2014-02-21 | 2018-09-04 | Samsung Electronics Co., Ltd. | Washing machine with ball balancer and method of controlling vibration reduction thereof |
| CN104005200A (en) * | 2014-05-26 | 2014-08-27 | 合肥荣事达三洋电器股份有限公司 | Vibration quantity detection device and method for drum washing machine |
-
2014
- 2014-12-12 JP JP2014252413A patent/JP6467703B2/en active Active
-
2015
- 2015-12-11 EP EP15867010.9A patent/EP3231918A1/en not_active Withdrawn
- 2015-12-11 WO PCT/CN2015/097173 patent/WO2016091215A1/en active Application Filing
- 2015-12-11 US US15/535,034 patent/US20170321363A1/en not_active Abandoned
- 2015-12-11 CN CN201580067405.XA patent/CN107109749B/en active Active
- 2015-12-11 KR KR1020177019313A patent/KR101917973B1/en active IP Right Grant
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11123295A (en) * | 1997-10-23 | 1999-05-11 | Mitsubishi Electric Corp | Correcting device for unbalance in spin-drier |
| JPH11128592A (en) * | 1997-10-31 | 1999-05-18 | Mitsubishi Electric Corp | Imbalance controller for dryer |
| JP2008073311A (en) * | 2006-09-22 | 2008-04-03 | Mitsubishi Electric Corp | Inclined-type washing machine |
| CN102251367A (en) * | 2010-05-20 | 2011-11-23 | 三洋电机株式会社 | Washing machine |
| JP2011240040A (en) * | 2010-05-20 | 2011-12-01 | Sanyo Electric Co Ltd | Washing machine |
| JP2013220255A (en) * | 2012-04-18 | 2013-10-28 | Toshiba Corp | Washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| US20170321363A1 (en) | 2017-11-09 |
| KR20170094398A (en) | 2017-08-17 |
| WO2016091215A1 (en) | 2016-06-16 |
| KR101917973B1 (en) | 2018-11-12 |
| CN107109749B (en) | 2019-11-12 |
| JP6467703B2 (en) | 2019-02-13 |
| JP2016112136A (en) | 2016-06-23 |
| EP3231918A1 (en) | 2017-10-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4943772B2 (en) | Washing machine and cloth amount calculation method | |
| EP2083109A1 (en) | Drum type washing machine having ball balancers and controlling method of the same | |
| JP2002530169A (en) | Method and apparatus for detecting imbalance in a washing tub | |
| AU2006202422A1 (en) | Method of detecting an off-balance condition of a clothes load in a washing machine | |
| CN110904618B (en) | Balancing control method and device for dewatering, clothes processing device and storage medium | |
| EP1610144A2 (en) | Method for calibrating offset from DC bus | |
| CN107109749B (en) | Dewaterer | |
| CN107709650B (en) | Dewaterer | |
| CN106319842A (en) | Washing machine dewatering control method | |
| JP2001062189A (en) | Washing machine, and washing machine vibration detection device | |
| JP3416573B2 (en) | Washing machine | |
| CN111101338A (en) | Balance control method and device of clothes treatment device and clothes treatment device | |
| JP2002028393A (en) | Fully automatic washing machine | |
| CN114541084B (en) | Dewatering control method and device for washing machine, washing machine and medium | |
| EP1461487A1 (en) | Method for determining unbalanced load | |
| CN112095286A (en) | Clothes processing device, operation control method and system thereof, and storage medium | |
| CN110016784A (en) | The control method and device of washing machine | |
| CN113136694B (en) | Foam quantity abnormity identification method and device of clothes treatment device and clothes treatment device | |
| CN111155271B (en) | Balanced water injection control method and device of clothes treatment device and clothes treatment device | |
| US10822735B2 (en) | Spin inefficiency detection for a washing machine appliance | |
| WO2016188437A1 (en) | Dehydrator | |
| JP2007075321A (en) | Washing machine | |
| CN112626796B (en) | Control method and device of washing machine, washing machine and computer readable storage medium | |
| WO2020108431A1 (en) | Dewatering machine | |
| KR20150073434A (en) | Apparatus and method for changing water supply time of washing machine automatically |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200521 Address after: No. 558, Jiaozhouwan West Road, Huangdao District, Qingdao, Shandong Province Co-patentee after: HAIER ASIA Co.,Ltd. Patentee after: QINGDAO JIAONAN HAIER WASHING MACHINE Co.,Ltd. Address before: Tokyo, Japan Co-patentee before: QINGDAO HAIER WASHING MACHINE Co.,Ltd. Patentee before: HAIER ASIA Co.,Ltd. |
|
| TR01 | Transfer of patent right |