CN102888738B - Washing machine - Google Patents

Abstract

Provided is a washing machine which realizes miniaturization and reduces individual difference of detection precision, takes uneven distribution of the laundry into consideration and controls the rotation of a rotary tank, thereby reducing the entire operation time. The washing machine has a housing, a water tank, a rotary tank, a driving unit, a supporting structure part, a revolution detection unit, a vibration detection unit, and a control device. In the water groove housed inside the housing, the rotary tank is housed. The supporting structure part supports the water tank in the housing. The revolution detection unit detects the revolutions of the rotary tank, and the vibration detection unit arranged on the water tank detects vibration applied to the water tank based on the accelerated speed applied to the water tank. The control device compares the accelerated speed detected by the vibration detection unit with the preset upper limit of the accelerated speed, counts the exceeding times when the accelerated speed applied to the water tank is judged to be greater than the upper limit of the accelerated speed, and controls the revolutions of the rotary tank based on the exceeding times.

Description

Washing machine

Technical field

Present embodiment relates to washing machine.

Background technology

Due to reasons such as the washings in swivelling chute are biased, washing machine vibrates when such as in dehydrating operation, swivelling chute rotates.For this reason, washing machine takes the vibration and the grade out of service measure when swivelling chute occurs in excessive vibration that detect swivelling chute.In the past, washing machine was such as by arranging safety pole, or the revolution rising catching swivelling chute detects the vibration of swivelling chute.

Be provided with in the washing machine of safety pole, safety pole is near the tank be arranged on for accommodating swivelling chute.Therefore, when swivelling chute occurs in vibration, contact with safety pole for the tank of accommodating swivelling chute, thus detect the vibration of swivelling chute.

In addition, by the rotation catching swivelling chute rise detect swivelling chute vibration washing machine in, such as detect the vibration of swivelling chute based on the difference etc. of the revolution of the revolution shown by driver element and actual swivelling chute.

But as the washing machine of use safety bar in the past, safety pole is located at for accommodating between the tank of swivelling chute and shell.Therefore, along with the miniaturization of washing machine, shell and for accommodate swivelling chute tank between space be tending towards reducing.Its result, before the swivelling chute of vibration contacts with safety pole may with housing contacts, thus occurred that washing machine is difficult to problem miniaturized further.

In addition, safety pole is according to installation site, and its accuracy of detection changes, so according to different washing machines, vibration detection precision exists individual difference.

In addition, in the washing machine detecting swivelling chute revolution, the object of detection revolution is not natively the vibration in order to detect swivelling chute, so be difficult to the biased of the washings by being accommodated in swivelling chute take the rotation controlling swivelling chute into account yet.

At first technical literature

Patent document

Patent document 1: specially permit No. 3131536 description

Summary of the invention

Therefore, the object of the invention is to, provide a kind of can realize miniaturization while reduce the individual difference of accuracy of detection, and consider the biased of washings when controlling swivelling chute and rotating, thus shorten the washing machine of overall operation time.

For the washing machine of present embodiment solved the problem, possess: shell; Tank, is accommodated in above-mentioned shell; Swivelling chute, is accommodated in above-mentioned tank; Driver element, for the above-mentioned swivelling chute of rotary actuation; Supporting structure portion, at the above-mentioned tank of above-mentioned shell internal support; Rotation number detecting unit, for detecting the revolution of above-mentioned swivelling chute; Vibration detecting unit, is located on above-mentioned tank, and detects according to the acceleration putting on above-mentioned tank the vibration putting on above-mentioned tank; Control device, the acceleration putting on above-mentioned tank detected by above-mentioned vibration detecting unit and the upper limit acceleration preset are compared, the number of times that exceedes being judged as the acceleration putting on above-mentioned tank and being greater than above-mentioned upper limit acceleration is counted, and controls based on the above-mentioned revolution of number of times to the above-mentioned swivelling chute by above-mentioned drive unit drives that exceed.

Accordingly, can provide and consider the biased of washings and control swivelling chute rotation, thus shorten the washing machine of overall operation time.

Accompanying drawing explanation

Fig. 1 is the phantom of the schematic configuration that the washing machine that the first embodiment relates to is shown.

Fig. 2 is the top view of the schematic configuration that the washing machine that the first embodiment relates to is shown.

Fig. 3 is the block diagram of the electric formation that the washing machine that the first embodiment relates to is shown.

Fig. 4 represents the first upper limit acceleration, the second upper limit acceleration and the detection number of times that store in the storage part of the washing machine that the first embodiment relates to.

Fig. 5 is the flow chart of the operating process that the washing machine that the first embodiment relates to is shown.

Fig. 6 is the block diagram being equivalent to the electric formation of Fig. 3 that the washing machine that expression second embodiment relates to is shown.

Fig. 7 is the ideograph being equivalent to Fig. 4 of the washing machine related to about the second embodiment.

Fig. 8 is the time dependent ideograph of swivelling chute revolution that the washing machine related to about the 3rd embodiment is shown.

Fig. 9 is the ideograph being equivalent to Fig. 4 of the washing machine related to about the 3rd embodiment.

Figure 10 is the flow chart of the operating process that the washing machine that the 3rd embodiment relates to is shown.

Figure 11 illustrates that the washing machine related to about the 4th embodiment is at the time dependent ideograph of dehydrating operation initial stage swivelling chute revolution.

Figure 12 is the ideograph being equivalent to Fig. 4 of the washing machine related to about the 4th embodiment.

Figure 13 is the flow chart of the operating process that the washing machine that the 4th embodiment relates to is shown.

Reference numeral:

10: washing machine 11: shell 12: swivelling chute 13: tank 14: drive division 15: supporting structure portion 33: motor (rotation number detecting unit, weight sensing unit) 46: acceleration transducer (vibration detecting unit) 50: control device 53: revolution obtaining section (rotation number detecting unit) 54: vibration obtaining section (vibration detecting unit) 56: weight obtaining section (weight sensing unit) 57: configuration part (by weight setup unit) 61 by weight: temperature acquisition unit (temperature detecting unit) 62: by temperature setting portion (by temperature setting unit) 63: temperature sensor (temperature detecting unit)

Detailed description of the invention

Below, based on accompanying drawing, the washing machine that several embodiment relates to is described.Further, the component part that essence is common in several embodiments imparts same-sign, omits the description.

First embodiment

Fig. 1 and Fig. 2 illustrates the washing machine that the first embodiment relates to.Washing machine 10 possesses shell 11, swivelling chute 12, tank 13, drive division 14 and supporting structure portion 15.Washing machine 10 of the present embodiment is the rotary middle spindle 16 of swivelling chute 12 perpendicular axis type washing machines parallel with gravity direction, carries out washing and dewatering for the washings being accommodated in swivelling chute 12.In addition, washing machine 10 also can increase functions/drying.Shell 11 is formed as rectangular-shaped, forms the outer shell of washing machine 10.

Swivelling chute 12 has bottom 21, main part 22 and spin balancer 23.Bottom 21 is such as formed as bowl-shape by resin etc.Main part 22 is such as formed as cylindric by corrosion resistant plate etc., and links into an integrated entity with bottom 21.Main part 22 has the multiple holes 24 run through in thickness of slab direction.Further, in the accompanying drawings, the part in multiple hole 24 is only shown.

When dewatering to washings, the water be separated from washings is discharged to the outside of swivelling chute 12 by this hole 24.In addition, when carrying out drying to washings, the hot blast be supplied in swivelling chute 12 is discharged by the outside of this hole 24 to swivelling chute 12.

Spin balancer 23 is located at the upper end side of main part 22, namely contrary with the bottom 21 of main part 22 end side.In spin balancer 23, such as, be sealed with liquid, for realizing the stable of the swivelling chute 12 of rotation centered by rotary middle spindle 16.

Tank 13 is formed as the tubular with bottom 25.In the side that the bottom 25 with tank 13 is contrary, be provided with sink cover 26.Sink cover 26 is formed inner cap 27, feed water inlet 28 and air outlet 29.The upper end side of inner cap 27 for opening and closing swivelling chute 12, the end of namely contrary with drive division 14 side.

The water of never illustrated water unit supply is flowed in swivelling chute 12 by feed water inlet 28.The hot blast of never illustrated air supplying part supply is flowed in swivelling chute 12 by air outlet 29.

Sink cover 26 has filter 31.Filter 31 is for collecting the hot blast of discharging from tank 13 foreign matters such as the velveteen that contains.Tank 13 has Drainage Division 32 in bottom 25.Water in tank 13, is discharged to the outside of washing machine 10 via Drainage Division 32.

Drive division 14 be located at tank 13 below, namely with the contrary side of sink cover 26.Drive division 14 mainly has motor 33.When washing machine 10 carries out dehydrating operation, drive division 14 makes swivelling chute 12 to a direction rotary actuation.

In addition, drive division 14 is connected with the mixing component 34 being located at 21 sides bottom swivelling chute 12.When washing machine 10 carries out washing operation or rinsing runs, drive division 14 makes mixing component 34 rotary actuation.Now, drive division 14 makes swivelling chute 12 stop the rotation, and makes mixing component 34 to positive direction and alternately rotary actuation in the other direction simultaneously.

When washing machine 10 carries out dehydrating operation, drive division 14 not only makes swivelling chute 12 to a direction rotary actuation, also makes mixing component 34 to a direction rotary actuation.The motor 33 forming drive division 14 is so-called outer-rotor types, for direct rotary actuation swivelling chute 12 and mixing component 34.

Supporting structure portion 15 has lid side electrode support 41, suspension rod 42, bottom side support 43 and elastomeric element 44.Lid side electrode support 41 is located at the end of upper end, i.e. sink cover 26 side in each bight of shell 11.

Lid side electrode support 41 has carrier 411 and moving-member 412.Moving-member 412 in downside, namely drive division 14 side there is the end face of dome shape.Carrier 411 is formed as the concave ball surfaces corresponding with moving-member 412, and, be movably contacted with moving-member 412.

Suspension rod 42 extends to drive division 14 side downwards, namely from the moving-member 412 of lid side electrode support 41.

Bottom side support 43 has carrier 431 and moving-member 432.Carrier 431 in the side, bottom 25 of tank 13 with outstanding to four directions accordingly with each bight of shell 11.Moving-member 432 is arranged near the end of below, i.e. drive division 14 side of suspension rod 42, and has the end face of dome shape in lid side electrode support 41 side.

The lower surface of carrier 431 is formed as the concave ball surfaces corresponding with moving-member 432, and is movably contacted with moving-member 432.Elastomeric element 44 is such as formed by helical spring etc., the lower end in contact of an end and suspension rod 42, and the other end contacts with the moving-member 432 of bottom side support 43.Elastomeric element 44 has the power of prolonging direction.Thus, tank 13 passes through supporting structure portion 15 to hang state support on shell 11.

Further, the structure being carried out with hanging state supporting by tank 13 by supporting structure portion 15 is one example, and tank 13 also can be such as from below by the structure of supporting structure portion 15 supporting.

Washing machine 10 possesses the acceleration transducer 46 as vibration detecting unit.Acceleration transducer 46 is located near the end of upper end, i.e. sink cover 26 side of tank 13.Acceleration transducer 46 is located on the outer wall of tank 13.Acceleration transducer 46 detects according to the acceleration putting on tank 13 vibration putting on tank 13.

Specifically, acceleration transducer 46 detects relative to the gravity direction of ground plane 47 and the acceleration of horizontal direction such as the house floors being provided with washing machine 10.At this, the horizontal direction of acceleration that acceleration transducer 46 detects refers to, in the paper of Fig. 1 left and right directions and fore-and-aft direction both or wherein any one.In addition, acceleration transducer 46 also can make the structure of the acceleration detected on above-below direction in FIG.

Washing machine 10 possesses control device 50 further.Control device 50 is housed in the bottom side in the space formed between shell 11 and tank 13.Control device 50 is such as electrically connected with acceleration transducer 46 by wire 51 grade.

In addition, control device 50 is also connected with not shown guidance panel etc.As shown in Figure 3, control device 50 has handling part 52, revolution obtaining section 53, vibration obtaining section 54, revolution control part 55, weight obtaining section 56, by weight configuration part 57 and storage part 58.

Handling part 52 is such as made up of the microcomputer with CPU, ROM and RAM.Handling part 52 controls the operation of washing machine 10 by performing the computer program be stored on ROM.

Control device 50 realizes revolution obtaining section 53, vibration obtaining section 54, revolution control part 55, weight obtaining section 56 and configuration part 57 by weight by performing computer program with software mode.

In addition, handling part 52 is connected with storage part 58.Storage part 58 is such as made up of nonvolatile memory etc., for storing the upper limit acceleration, detection number of times and the lower limit revolution that preset.Storage part 58 also can share with ROM or RAM of handling part 52.

Revolution obtaining section 53 and motor 33 together form rotation number detecting unit.Specifically, motor 33 exports the signal of telecommunication based on self revolution, namely exports the current value be supplied to or the voltage value etc. be applied in.Revolution obtaining section 53 obtains the revolution of motor 33 based on the signal of telecommunication that this motor 33 exports.Further, revolution obtaining section 53 also can be configured to, such as, directly obtained the structure of the revolution of swivelling chute 12 or motor 33 by tachometer generators such as rotary encoders.

Vibration obtaining section 54 together forms vibration detecting unit with acceleration transducer 46.Specifically, acceleration transducer 46 exports the signal of telecommunication based on the acceleration detected.The signal of telecommunication that exports based on acceleration transducer 46 of vibration obtaining section 54, obtains the acceleration putting on tank 13 that acceleration transducer 46 detects, namely vibrates.

Weight obtaining section 56 and motor 33 together form weight sensing unit.Specifically, for driving the load of the motor 33 of mixing component 34, according to be accommodated in swivelling chute 12 washings weight and change.That is, the weight being accommodated in the washings of swivelling chute 12 is heavier, and the load for the motor 33 driving mixing component 34 is larger.

Thus, be accommodated in the weight of the washings of swivelling chute 12, relevant to the load of the motor 33 for driving mixing component 34.Therefore, before in washing runs, water filling starts, weight obtaining section 56 makes mixing component 34 to positive direction and rotary actuation in the other direction under washings being housed in the state in swivelling chute 12.And, weight obtaining section 56 by obtain motor 33 in this driving load, be namely supplied to the current value of motor 33 or be applied to the voltage value of motor 33, obtain the weight during washings being accommodated in swivelling chute 12 dry.

The vibration of the tank 13 that the revolution of the swivelling chute 12 obtained from motor 33 based on revolution obtaining section 53 and vibration obtaining section 54 obtain from acceleration transducer 46, revolution control part 55 controls the revolution of swivelling chute 12, the current value namely exported to motor 33 or voltage value.

Specifically, the vibration of the tank 13 that obtains from acceleration transducer 46 of vibration obtaining section 54, the acceleration that namely puts on tank 13 compare with the upper limit acceleration being stored in storage part 58 by revolution control part 55.And the number of times that the acceleration putting on tank 13 being judged as obtaining is greater than upper limit acceleration by revolution control part 55 counts as exceeding number of times.

Further, revolution control part 55 controls the revolution of swivelling chute 12, the current value namely exported to motor 33 or voltage value according to the counted number of times that exceedes.

In present embodiment, upper limit acceleration is set to that two stages store by storage part 58.Specifically, as shown in Figure 4, the first upper limit acceleration a1, the second upper limit acceleration a2 and detection number of times D store as table by storage part 58.The value of the second upper limit acceleration a2 is set to larger than the first upper limit acceleration a1, namely a2 > a1.

The acceleration a putting on tank 13 obtained by acceleration transducer 46 and the first upper limit acceleration a1 and the second upper limit acceleration a2 compares by revolution control part 55, and count acceleration a and be greater than first of the first upper limit acceleration a1, namely a > a1 and exceed number of times L1, and acceleration a is greater than second of the second upper limit acceleration a2, namely a > a2 and exceedes number of times L2.

Now, as mentioned above due to a2 > a1, thus counted by revolution control part second exceed number of times L2 and be less than or equal to first and exceed number of times L1, namely L1 >=L2.What storage part 58 stored that revolution control part 55 counts first exceedes number of times L1 and second and exceedes number of times L2.

And, when the acceleration a putting on tank 13 is greater than the second upper limit acceleration a2, namely during a > a2, and when second exceed number of times L2 be 1 time, namely L2=1 time, revolution control part 55 controls the revolution of swivelling chute 12.

In addition, when the acceleration a putting on tank 13 is greater than the first upper limit acceleration a1 and is less than or equal to the second upper limit acceleration a2, namely during a2 > a > a1, and when first exceed number of times L1 reach preset and be stored in storage part 58 detection number of times D, namely L1=D time, revolution control part 55 controls the revolution of swivelling chute 12.

In present embodiment, when second exceedes number of times L2 and reach 1 time, namely L2=1, or first exceed number of times L1 reach detect number of times D, namely L1=D time, revolution control part 55 reduces the revolution of swivelling chute 12 or swivelling chute 12 is stopped.

Thus, revolution control part 55 by reducing the revolution of swivelling chute 12 or making swivelling chute 12 stop interrupting dehydrating operation, and is controlled to " kneading open operation " of the washings be contained in swivelling chute 12 being kneaded open to operation.

The weight set upper limit acceleration of washings that obtains according to weight obtaining section 56 of configuration part 57 and exceed number of times by weight.In present embodiment, as shown in Figure 4, configuration part 57 sets the first upper limit acceleration a1, the second upper limit acceleration a2 according to the weight of washings and is equivalent to exceed as first the detection number of times D of the number of times that number of times L1 allows by weight.The weight of the washings detected by weight obtaining section 56 is less, then detection number of times D sets larger by configuration part 57 by weight.

Below, the operating process of the washing machine 10 that the first embodiment relates to is described based on Fig. 5.

Control device 50 performs washing operation, rinsing operation and dehydrating operation according to the operation sequence preset.Control device 50 obtained the weight (S101) of the washings being accommodated in swivelling chute 12 before washing operation starts.Specifically, weight obtaining section 56 with rotary actuation mixing component 34 under swivelling chute 12 inactive state, thus obtains by the weight before the washing of washings of accommodating based on motor 33 load during this driving.

After control device 50 obtains washing weight (S101), perform washing and run and rinsing operation (S102).Washing runs and after rinsing end of run, control device 50 starts to carry out dehydrating operation (S103).And when washing machine 10 starts to carry out dehydrating operation, revolution obtaining section 53 obtains the revolution R(S104 of the swivelling chute 12 in dehydrating operation).

Now, revolution obtaining section 53 obtains the revolution R of motor 33 based on the current value being supplied to motor 33 or any one or both that are applied in the voltage value of motor 33.

After revolution obtaining section 53 obtains the revolution R of swivelling chute 12 in S104, whether the revolution R that judgement obtains is more than or equal to lower limit revolution Ri(S105).Obtaining lower limit revolution Ri is to judge swivelling chute 12 whether along with dehydrating operation starts to rotate.

Such as, when the washings being accommodated in swivelling chute 12 exists weight bias, because the rotation of its biased swivelling chute 12 sometimes can not normally be risen.Therefore, after dehydrating operation starts, its revolution R and bound revolution Ri compares by revolution obtaining section 53, thus judges whether the rotation of swivelling chute 12 normally rises.Now, lower limit revolution Ri presets according to the performance of washing machine 10, such as 20rpm etc.

When being judged as that revolution R is more than or equal to lower limit revolution Ri (in S105 "Yes"), vibration obtaining section 54 obtains the acceleration a(S106 putting on tank 13 from acceleration transducer 46).

When the revolution R obtained in S104 is more than or equal to lower limit revolution Ri, the swivelling chute 12 starting to rotate in S103 is judged as its rotation and normally rises.So the rotation of swivelling chute 12, through initial upward stroke, forwards stable revolution upward stroke to.Therefore, when being judged as that the rotation of swivelling chute 12 is normally risen, vibration obtaining section 54 starts to obtain the acceleration a putting on tank 13.

On the other hand, when the revolution R being judged as obtaining in S105 is less than lower limit revolution Ri (in S105 "No"), vibration obtaining section 54 forwards S104 to, the process that S104 is later repeatedly.

Obtain the acceleration a(S106 putting on tank 13) after, revolution control part 55 judges whether acquired acceleration a is greater than the second upper limit acceleration a2 (S107).That is, the acceleration a obtained and the second upper limit acceleration a2 being stored in storage part 58 compare, to judge whether the acceleration a obtained is greater than the second upper limit acceleration a2, i.e. a > a2 by revolution control part 55.

When being judged as that in S107 acceleration a is greater than second upper limit acceleration a2, a > a2 (in S107 "Yes"), revolution control part 55 stops the rotation the rotation of groove 12, and forwards to and knead open operation (S108).That is, when the acceleration a putting on tank 13 is greater than the second upper limit acceleration a2, revolution control part 55 is judged as that second exceedes number of times L2 and reached 1 time, i.e. L2=1.And the rotation that revolution control part 55 carries out controlling to make swivelling chute 12 stops.

Further, revolution control part 55 is by swivelling chute 12 water filling and rotary actuation mixing component 34 thus perform and knead open operation, to knead open the washings being accommodated in swivelling chute 12 while making swivelling chute 12 stop.

Knead open after operation (S108) terminates, control device 50 returns (S103) in dehydrating operation again, the process repeatedly after dehydrating operation (S103).Further, revolution control part 55 also can make the decline of the rotating speed of swivelling chute 12 replace the rotation of the groove 12 that stops the rotation.

At this, the maximum of the vibration that the tank 13 that the second upper limit acceleration a2 is equivalent to accommodate swivelling chute 12 allows.Therefore, for collecting swivelling chute 12 tank 13 be applied above the second upper limit acceleration a2 vibration, namely acceleration time, rotary actuation swivelling chute 12 should not be continued.Therefore, when second exceed number of times L2 reach 1 time time, revolution control part 55 stops the rotation the rotary actuation of groove 12, forwards to and kneads open operation.

On the other hand, when be judged as in S107 acceleration a be not more than the second upper limit acceleration a2, namely a2 >=a time (in S107 "No"), revolution control part 55 judges whether the acceleration a putting on tank 13 is greater than the first upper limit acceleration a1(S109).

Namely, the acceleration a putting on tank obtained in S106 and the first upper limit acceleration a1 being stored in storage part 58 compare by revolution control part 55, and judge whether the acceleration a putting on tank obtained in S106 is greater than the first upper limit acceleration a1, i.e. a > a1(S109).

When being judged as that in S109 acceleration a is greater than first upper limit acceleration a1, a > a1 (in S109 "Yes"), this is judged as that the number of times of a > a1 exceedes number of times L1 as first and carries out counting (S110) by revolution control part 55.Revolution control part 55 will be judged as that the number of times of a > a1 exceedes number of times L1 as first and is stored in storage part 58.And what revolution control part 55 judged to count in S110 first exceedes number of times L1 and whether has reached the detection number of times D(S111 preset).

That is, revolution control part 55 judges whether L1 >=D.The value of the first upper limit acceleration a1 is set to be less than the second upper limit acceleration a2.Therefore, even if the vibration of tank 13, the acceleration a that namely puts on tank 13 are greater than the first upper limit acceleration a1, the operation of the groove 12 that also need not stop the rotation at once.

Namely, if the acceleration a putting on tank 13 is the vibration of a1 < a≤a2, then swivelling chute 12 is allowed to continue to rotate.But, even if the vibration of the acceleration of this a1 < a≤a2, as long as this vibration occurs repeatedly repeatedly, then think that the washings being accommodated in swivelling chute 12 there occurs and exceed the biased of allowed band.

Therefore, when the acceleration a obtained in S106 be first of a1 < a≤a2 exceed number of times L1 reach detect number of times D time, revolution control part 55 forwards to and kneads open operation (S108), performs knead open operation (S108) with the rotation of the groove 12 that stops the rotation.Knead open the process in operation (S108), as mentioned above.

At this, the first upper limit acceleration a1, the second upper limit acceleration a2 and be equivalent to the detection number of times D that first exceedes the number of times of number of times L1, as shown in Figure 4, according to the weight of washings being accommodated in swivelling chute 12, be set as different value by configuration part 57 by weight.

When being accommodated in the weight hour of washings of swivelling chute 12, even if put on the vibration of tank 13, the namely acceleration scope at a1 < a≤a2, by proceeding the rotary actuation of swivelling chute 12, swivelling chute 12 also easily proceeds to stable rotation.

In contrast, when the weight of the washings being accommodated in swivelling chute 12 is large, even if proceed the rotary actuation of swivelling chute 12, swivelling chute 12 is also difficult to proceed to stable rotation, vibration often occurs repeatedly or vibrates to become large.

Therefore, configuration part 57 is based on the weight of the washings obtained in S101 by weight, set allow first exceed number of times L1, namely detect number of times D.Namely, the weight being accommodated in the washings of swivelling chute 12 is less, then configuration part 57 sets larger by being equivalent to the first detection number of times D exceeding number of times L1 by weight.

When the acceleration a being judged as putting on tank 13 be less than or equal to the first upper limit acceleration a1, namely a1 >=a time (in S109 "No"), revolution control part 55 make swivelling chute 12 continue rotate (S112).Thus, the revolution of swivelling chute 12 rises, and swivelling chute 12 is with the constant revolution rotary actuation preset.

When in S112, swivelling chute 12 reaches constant revolution, control device 50 judges whether to cross the dewatering time (S113) preset.When control device 50 is judged as having crossed dewatering time (in S113 "Yes"), terminates dehydrating operation (S114), and terminate the operation of washing machine 10.

On the other hand, when control device 50 to be judged as in S113 dewatering time without time (in S113 "No"), then until dewatering time is through proceeding dehydrating operation.

By above process, the swivelling chute 12 of washing machine 10, its rotation controls based on the acceleration a putting on tank 13.

The washing machine 10 that first embodiment described above relates to possesses acceleration transducer 46, and acceleration transducer 46 is located on tank 13.When swivelling chute 12 occurs in vibration, this acceleration transducer 46 detects the acceleration that the tank 13 for accommodating swivelling chute 12 occurs.

Now, rotary middle spindle 16 direction acceleration transducer 46 direct-detection effluent trough 13 occurred and the diametric shake of swivelling chute 12.Thus, the vibration pack of the swivelling chute 12 be detected is containing washings biased being accommodated in swivelling chute 12.

In addition, by using acceleration transducer 46, thus the parts that such as safety pole contacts with the tank 13 of collecting swivelling chute 12 like that need not be used.Therefore, reducing for accommodating the space will guaranteed between the tank 13 of swivelling chute 12 and shell 11, being difficult to individual difference occurs simultaneously.

And in the first embodiment, the vibration of the tank 13 detected by this acceleration transducer 46, the acceleration namely putting on tank 13 and the upper limit acceleration that presets are compared by control device 50.What the acceleration that this control device 50 counting puts on tank 13 was greater than upper limit acceleration exceedes number of times, and exceedes based on what measure the revolution that number of times controls swivelling chute 12.So, reduce the individual difference of accuracy of detection while miniaturization can be realized, and consider the biased of washings and control swivelling chute 12 and rotate.

In addition, in the first embodiment, the acceleration a and upper limit acceleration that put on tank 13 are compared, and exceed more than the first upper limit acceleration a1 or the second upper limit acceleration a2 revolution that number of times controls swivelling chute 12 based on acceleration a.Therefore, when the microvibration allowing the acceleration of tank 13 little, when the large vibration of acceleration occurs tank 13, washing machine 10 stops dehydrating operation.

Thus, according to the size that tank 13 vibrates, the revolution of swivelling chute 12 is controlled.So, the stopping of unnecessary dehydrating operation can be reduced, realize the shortening of overall operation time.

In addition, in the first embodiment, the weight being accommodated in the washings of swivelling chute 12 is detected by weight obtaining section 56.And configuration part 57 is according to the weight set upper limit acceleration of the washings detected by weight.

When being accommodated in the weight hour of washings of swivelling chute 12, even if the tank 13 of collecting swivelling chute 12 exceedes the vibration of upper limit acceleration, by proceeding original rotary actuation, the rotation of swivelling chute 12 is also easily stablized.Now, when the tank 13 of accommodating swivelling chute 12 exceedes the vibration of upper limit acceleration, the continuation operating ratio groove 12 that stops the rotation runs the overall operation time that more can shorten the washing machine 10 comprising dewatering projects.

On the other hand, when the weight of the washings being accommodated in swivelling chute 12 is large, when the tank 13 of collecting swivelling chute 12 exceedes the vibration of upper limit acceleration, the rotation of swivelling chute 12 is not easy to stablize.Now, the operation of the groove 12 that stops the rotation for the time being, and carry out water filling once again or rinsing, to relax the biased of washings, then more can shorten the overall operation time.

Therefore, according to the weight set upper limit acceleration of the washings detected and exceed number of times, the undue oscillation of the tank 13 of accommodating swivelling chute 12 can be suppressed, realize the running time shortening washing machine 10.

Second embodiment

Fig. 6 illustrates the electric formation of the washing machine that the second embodiment relates to.

In this second embodiment, the control device 50 of washing machine 10, on the architecture basics of the first embodiment, also has temperature acquisition unit 61 and by temperature setting portion 62.Control device 50, by performing computer program, realizes temperature acquisition unit 61 with software mode and by temperature setting portion 62.Temperature acquisition unit 61 and temperature sensor 63 together form temperature detecting unit.

Specifically, temperature sensor 63 is for detecting the temperature around tank 13.Temperature sensor 63 is such as located near shell 11 or air outlet 29.Temperature sensor 63 exports the signal of telecommunication based on the temperature detected.

Temperature acquisition unit 61 obtains the temperature near the tank 13 that detected by temperature sensor 63 based on the signal of telecommunication exported by temperature sensor 63.

Temperature near the tank 13 detected according to temperature sensor 63 by temperature setting portion 62, capping acceleration and as the detection number of times D exceeding number of times and allow.In second embodiment, the temperature detected by temperature sensor 63 by temperature setting portion 62 basis as shown in Figure 7 sets the first upper limit acceleration a1, the second upper limit acceleration a2 and detects number of times D.

Such as, temperature near the tank 13 that temperature sensor 63 detects be in close within the scope of 10 DEG C to 30 DEG C of room temperature time, compared with the situation of less than 10 DEG C or more than 30 DEG C, by temperature setting portion 62, the detection number of times D of this temperature is set as larger.

For the supporting structure portion 15 of a raggle 13, there is the such as elastomeric element such as rubber or spring.These elastomeric elements, particularly rubber etc., its coefficient of elasticity changes according to temperature.The general temperature of elastomeric element more low harder, temperature is more high softer.

In addition, the driver parts such as supporting structure portion 15 or motor 33, are coated with the greases such as lubricating grease to reduce friction.These greases be also temperature more low harder, temperature is more high softer.

Further, form the parts of supporting structure portion 15 grade, its size is according to temperature generation minor variations.Therefore, when temperature is low, the supporting structure portion 15 for a raggle 13 is hardening, and the vibration of the tank 13 of collecting swivelling chute 12 diminishes relatively.

On the other hand, along with temperature uprises, for supporting supporting structure portion 15 deliquescing of swivelling chute 12, the tank 13 for accommodating swivelling chute 12 vibrates and relatively becomes large.Further, when temperature uprises, the supporting structure portion 15 of supporting swivelling chute 12 is along with the change of size, and often close contact between each parts, institute vibrates for the tank 13 of accommodating swivelling chute 12 and diminishes on the contrary.

Therefore, the first upper limit acceleration a1, the second upper limit acceleration a2 and detection number of times D is set by temperature setting portion 62 respectively according to the temperature that temperature sensor 63 detects.Thus, revolution control part 55 compares first and exceedes number of times L1 with when detecting number of times D, the detection number of times D adopting the temperature according to Fig. 7 to set in the S111 shown in Fig. 5.

In this second embodiment, the temperature around tank 13 is detected by temperature acquisition unit 61 and temperature sensor 63.And, come capping acceleration and detection number of times by temperature setting portion 62 according to the temperature around the tank 13 detected.

The characteristic in this supporting structure portion 15, changes according to temperature.It is because the spring constant of such as elastomeric element or the lubrication wet goods chips from thermal be coated on each parts change and produce that the characteristic in this supporting structure portion 15 changes.Therefore, carry out capping acceleration according to the temperature around the tank 13 detected and detect number of times.Thereby, it is possible to suppress the undue oscillation containing the tank 13 of swivelling chute 12.

3rd embodiment

The washing machine 10 that 3rd embodiment relates to is described.

Although the structure of the 3rd embodiment is common with the first embodiment, the control undertaken by control device 50 is different from the first embodiment.

In 3rd embodiment, the revolution control part 55 of control device 50, is divided into low speed rotation region and high speed rotary area by the rotary area of swivelling chute 12.Specifically, the revolution R of the swivelling chute 12 obtained by revolution obtaining section 53, as shown in Figure 8, along with the process of time T changes after starting energising to motor 33.

In present embodiment, the revolution R of swivelling chute 12, increases along with the process of time till T=Tc1 and reaches the first phase and stablize revolution Rc1.And the revolution R of swivelling chute 12, during T=Tc1 to T=Tc2, keeps the first phase to stablize revolution Rc1, afterwards again to T=Tt along with the time through and increase and reach the second phase and stablize revolution Rc2.The dewatering time of swivelling chute 12 to continue under the state keeping this second phase to stablize revolution Rc2 to rotate until through presetting.

In present embodiment shown in Fig. 8, the rate of change, the namely rotary acceleration of the revolution R of swivelling chute 12, at least change once during T=Tc2 to T=Tt.In present embodiment, the first phase stablizes revolution Rc1 and is set to Rc1=100 ~ 150rpm.In addition, the second phase stablizes revolution Rc2 and is set to Rc2=800 ~ 1000rpm.

At this, be accommodated in the washings of swivelling chute 12, terminated washing and run and rinsing operation.Thus, be accommodated in the washings of swivelling chute 12, containing a lot of water.So when making the rotation of the swivelling chute 12 containing wet washing thing sharply continue to increase, washings rapid dehydration, discharges a large amount of water from swivelling chute 12 to tank 13.Its result, likely insufficient and hinder dehydrating operation via the water that Drainage Division 32 is discharged.

Therefore, when swivelling chute 12 start rotate and its revolution R reach the first phase stablize revolution Rc1 time, revolution control part 55 suppresses the increase of the revolution R of swivelling chute 12, thus restriction from washings discharge the water yield.

So the water removed from washings by dehydrating operation, a part is removed reaching in the dehydrating operation that the first phase stablizes before revolution Rc1, removes in the dehydrating operation of remainder after follow-up T=Tc2.Thereby, it is possible to reduce the water removed from washings to concentrate the situation of discharging at short notice.

As shown in Figure 8, the revolution R of swivelling chute 12, changes along with the process of time.In 3rd embodiment, the revolution R of this swivelling chute 12 is set as low speed rotation region from starting energising, namely T=T0 to motor 33 by revolution control part 55 during reaching the first phase to stablize the T=Tc1 of revolution Rc1.

That is, revolution control part 55 sets the first phase and stablizes revolution Rc1 as lower limit revolution, and the revolution R of swivelling chute 12 is less than this first phase and stablizes revolution Rc1, the namely region of R < Rc1 and be set as low speed rotation region.

On the other hand, the revolution R of swivelling chute 12 is more than or equal to the region that the first phase stablizes revolution Rc1, namely R >=Rc1 and is set as high speed rotary area by revolution control part 55.

In 3rd embodiment, as shown in Figure 9, for each region of these low speed rotation regions and high speed rotary area, distinguish capping acceleration according to the weight of washings and detect number of times.

That is, as upper limit acceleration, storage part 58 stores low speed rotation upper limit acceleration A L for low speed rotation region, stores high speed rotate upper limit acceleration A H for high speed rotary area.Now, high speed rotation upper limit acceleration A H is set to be greater than low speed rotation upper limit acceleration A L, namely AL < AH.

In addition, storage part 58 stores low speed rotation upper limit number of times EL for low speed rotation region, stores high speed rotate upper limit number of times EH for high speed rotary area.Now, high speed rotation upper limit number of times EH is set to be less than low speed rotation upper limit number of times EL, namely EL > EH.

When the revolution R of swivelling chute 12 is in low speed rotation region, the low speed rotation that revolution control part 55 counts the vibration obtained from vibration obtaining section 54 by acceleration transducer 46, the acceleration a namely putting on tank 13 is greater than low speed rotation upper limit acceleration A L exceedes times N L.And, when this low speed rotation exceed times N L reach the low speed rotation upper limit number of times EL preset time, revolution control part 55 stops the rotation the rotary actuation of groove 12, and forwards to and knead open operation.

On the other hand, when the revolution R of swivelling chute 12 is in high speed rotary area, the high speed that revolution control part 55 counts the vibration obtained from vibration obtaining section 54 by acceleration transducer 46, the acceleration a namely putting on tank 13 is greater than high speed rotation upper limit acceleration A H rotates over times N H.And, when this high speed rotate over times N H reach the high speed that presets rotate the upper limit number of times EH time, revolution control part 55 stops the rotation the rotary actuation of groove 12, and forwards to and knead open operation.

These low speed rotation upper limit acceleration A L in low speed rotation region and low speed rotation upper limit number of times EL, and the high speed in high speed rotary area rotates upper limit acceleration A H and high speed rotates upper limit number of times EH, based on following reason definition magnitude relationship.

When the revolution R of swivelling chute 12 is in low speed rotation region, certainly start to rotate institute's elapsed time short, and the revolution R of swivelling chute 12 is also little.Therefore, the washings being accommodated in swivelling chute 12 contains a large amount of water, is distributed in brokenly in swivelling chute 12 simultaneously.Its result, when being in low speed rotation region, comparing and be in high speed rotary area, easily there is instability in the rotation of swivelling chute 12.

On the other hand, when the revolution R of swivelling chute 12 is in high speed rotary area, is accommodated in the water that contains in the washings of swivelling chute 12 and reduces, and compare and be evenly distributed in swivelling chute 12.So, when high speed rotary area, although the spin stabilization of swivelling chute 12, because revolution increases so impact when contacting with tank 13 is often larger.

From above, when the rotation of swivelling chute 12 is in low speed rotation region, although impact little when swivelling chute 12 contacts with tank 13, the frequency that swivelling chute 12 contacts with tank 13 is often high.

On the other hand, when the rotation of swivelling chute 12 is in high speed rotary area, compared with low speed rotation region, although the frequency that swivelling chute 12 contacts with tank 13 declines, impact often larger when swivelling chute 12 contacts with tank 13.

But, when the acceleration detected by acceleration transducer 46, namely swivelling chute 12 contacts with tank 13 time impact exceed the upper limit acceleration time stop the rotation immediately groove 12 rotation and forward to knead open operation time, may cause extend dehydrating operation terminate till required time.

Therefore, in 3rd embodiment, for the viewpoint continuing dehydrating operation as far as possible, relation low speed rotation upper limit acceleration A L and high speed being rotated upper limit acceleration A H is set as AL < AH, in addition, relation low speed rotation upper limit number of times EL and high speed being rotated upper limit number of times EH is set as EL > EH.

Thus, when in low speed rotation region, when relatively little vibration occurs with higher-frequency degree, the revolution of swivelling chute 12 is controlled.On the other hand, when in high speed rotary area, when there is the vibration larger than low speed rotation region, the revolution of swivelling chute 12 is controlled.In other words, revolution control part 55 in low speed rotation region until relatively little vibration continues dehydrating operation with higher-frequency degree, simultaneously in high speed rotary area until there is relatively large vibration to continue dehydrating operation.

Secondly, the operating process of the washing machine 10 that the 3rd embodiment relates to is described based on Figure 10.Further, the detailed description with the first embodiment co-treatment is omitted.

Control device 50 performs washing according to the operation sequence preset and runs, rinsing operation and dehydrating operation.

Control device 50 obtained the weight (S201) of the washings being accommodated in swivelling chute 12 before washing operation starts.After control device 50 obtains the weight of washings, perform washing and run and rinsing operation (S202).Control device 50 terminates washing and runs and after rinsing operation, start dehydrating operation (S203).And when washing machine 10 starts dehydrating operation, revolution obtaining section 53 obtains the revolution R(S204 of the swivelling chute 12 in dehydrating operation).

Obtain the revolution R(S204 of swivelling chute 12) after, whether the revolution R that revolution control part 55 judgement obtains is more than or equal to the first phase is stablized revolution Rc1(S205).When be judged as in S205 revolution R be less than the first phase stablize revolution Rc1, namely R < Rc1 time (in S205 "No"), vibration obtaining section 54 obtain the acceleration a(S206 putting on tank 13 from acceleration transducer 46).When revolution R be less than the first phase stablize revolution Rc1 time, the swivelling chute 12 being judged as starting in S203 rotating is in low speed rotation region.

On the other hand, when be judged as in S205 revolution R be more than or equal to the first phase stablize revolution Rc1, namely R >=Rc1 time (in S205 "Yes"), vibration obtaining section 54 obtain the acceleration a(S207 putting on tank 13 from acceleration transducer 46).When revolution R be more than or equal to the first phase stablize revolution Rc1 time, the swivelling chute 12 being judged as starting in S203 rotating has arrived high speed rotary area through low speed rotation region.

When obtaining the acceleration a in low speed rotation region in S206, revolution control part 55 judges whether the acceleration a that this obtains is greater than low speed rotation upper limit acceleration A L(S208).That is, the acceleration a obtained and the low speed rotation upper limit acceleration A L being stored in storage part 58 compare by revolution control part 55, and whether the acceleration a that judgement obtains is greater than low speed rotation upper limit acceleration A L, namely a > AL.

Be judged as in S208 acceleration a be greater than low speed rotation upper limit acceleration A L, namely a > AL time (in S208 "Yes"), revolution control part 55 will be judged as that the number of times of this > AL exceedes times N L as low speed rotation and carries out counting (S209).Revolution control part 55 is stored in storage part 58 using being judged as the number of times of a > AL to exceed times N L as low speed rotation.

And revolution control part 55 judges that the low speed rotation counted in S209 exceedes times N L and whether reaches the low speed rotation upper limit number of times EL(S210 preset).That is, revolution control part 55 judges whether NL >=EL.

When the low speed rotation that the acceleration a being judged as obtaining in S206 is a > AL exceed times N L reach low speed rotation upper limit number of times EL, namely NL >=EL time (in S210 "Yes"), revolution control part 55 stops the rotation the rotation of groove 12, and performs and knead open operation (S211).Perform in S211 after kneading open operation, control device 50 returns S203, and again starts dehydrating operation.

On the other hand, when be judged as in S208 acceleration a be less than or equal to low speed rotation upper limit acceleration A L, namely a≤AL time (in S208 "No"), and be judged as in S210 acceleration a be the low speed rotation of a > AL exceed times N L do not reach low speed rotation upper limit number of times EL, namely NL < EL time (in S210 "No"), revolution control part 55 returns the revolution (S204) obtaining swivelling chute, and the process repeatedly after S204.

When obtaining the acceleration a in high speed rotary area (S207), revolution control part 55 judges whether the acceleration a that this obtains is greater than high speed rotation upper limit acceleration A H(S212).That is, the acceleration a obtained is rotated upper limit acceleration A H with the high speed being stored in storage part 58 and compares by revolution control part 55, and whether the acceleration a that judgement obtains is greater than high speed rotation upper limit acceleration A H, namely a > AH.

When be judged as in S212 acceleration a be greater than high speed rotate upper limit acceleration A H, namely a > AH time (in S212 "Yes"), this is judged as that the number of times of a > AH rotates over times N H as high speed and carries out counting (S213) by revolution control part 55.

Revolution control part 55 is stored in storage part 58 using being judged as the number of times of a > AL to rotate over times N H as high speed.And revolution control part 55 judges that the high speed counted in S213 rotates over times N H and whether reaches the high speed rotation upper limit number of times EH(S214 preset).

That is, revolution control part 55 judges whether NH >=EH.When the high speed that the acceleration a being judged as obtaining in S207 is a > AH rotate over times N H reach high speed rotate upper limit number of times EH, namely NH >=EH time (in S214 "Yes"), revolution control part 55 stop the rotation groove 12 rotation and forward execution to and knead open operation (S211).Perform in S211 after kneading open operation, control device 50 returns S203, and again starts dehydrating operation.

On the other hand, when be judged as in S212 acceleration a be less than or equal to high speed rotate upper limit acceleration A H, namely a≤AH time (in S212 "No"), revolution control part 55 returns S207 and obtains the acceleration a putting on tank 13 in high speed rotary area, the process repeatedly after S212.

In addition, when be judged as in S214 acceleration a be the high speed of a > AH rotate over times N H do not reach high speed rotate upper limit number of times EH, namely NH < EH time (in S214 "No"), revolution control part 55 had judged whether to cross the dewatering time (S215) preset.

When being judged as dewatering time out-of-date (in S215 "Yes"), control device 50 terminates dehydrating operation (S216), and terminates the operation of washing machine 10.

On the other hand, when be judged as in S215 dewatering time without time (in S215 "No"), revolution control part 55 returns S207 and obtains the acceleration a putting on tank 13 in high speed rotary area, and the process repeatedly after S212.

As above illustrate, in the third embodiment, set the benchmark of acceleration according to the revolution R of swivelling chute 12 and exceed the benchmark of number of times.

Thus, when swivelling chute 12 is in low speed rotation region, even if there is repeatedly small vibration compared with high speed rotary area described later, revolution control part 55 also allows these vibrations and makes swivelling chute 12 continue to rotate.Therefore, though the rotation of dehydrating operation initial stage swivelling chute 12 unstable and often there is small vibration time, swivelling chute 12 also allows this vibration and proceeds dehydrating operation.Its result, need not stop dehydrating operation under slight vibration, thus avoid reforming knead open operation and dehydrating operation.

In contrast, when swivelling chute 12 is in high speed rotary area, although revolution control part 55 allows to make swivelling chute 12 continue to rotate, when there is larger vibration, even if number of times also makes swivelling chute 12 stop the rotation less relative to little vibration.Along with the increase of swivelling chute 12 revolution, vibration also often becomes large, becomes the reason that noise or machine breakdown occur.Therefore, when there is relatively large vibration in high speed rotary area, even if number of times is few, revolution control part 55 also makes swivelling chute 12 stop the rotation.

Like this when being in high speed rotary area, allow microvibration, but when there is larger vibration, the rotation of swivelling chute 12 is controlled.So by continuing the rotation of swivelling chute 12 as far as possible, the prolongation of the total run time that the dehydrating operation that can not cause reforming brings, can reduce noise or machine breakdown.

4th embodiment

The washing machine 10 that 4th embodiment relates to is described.

4th embodiment is the distortion of the 3rd embodiment.In above-mentioned 3rd embodiment, the revolution control part 55 of control device 50, is divided into low speed rotation region and high speed rotary area by the rotary area of swivelling chute 12.

In the 4th embodiment, this low speed rotation region is further divided into initial rotary area and even acceleration rotary area.Specifically, the revolution of the swivelling chute 12 obtained by revolution obtaining section 53, as shown in figure 11, changes along with the process of time after motor 33 being started to energising.Specifically, when T=0 place is energized to motor, the revolution R of swivelling chute 12, is not increase pro rata with the time, and increases brokenly at the appointed time from R=0.

That is, although swivelling chute 12 pairs of motors 33 start to rotate after being energized immediately, now the revolution R of swivelling chute 12 reaches tens of turns.In addition, the revolution R of swivelling chute 12, by the impact of washings being accommodated in swivelling chute 12, irregularly to increase at the rotation initial stage simultaneously.

Like this, the revolution R of swivelling chute 12, through T=Tc0 after being energized to motor 33, and increases till reaching transition revolution Rs brokenly.And reach transition revolution Rs through T=Tc0 after being energized to motor 33, the rotation of swivelling chute 12 tends towards stability.

That is, the revolution R of swivelling chute 12, after being energized to motor 33 after T=Tc0, the even acceleration of revolution R, namely to increase with the time pro rata.This transition revolution Rs according to for drive the characteristic of the machine such as motor 33 grade of swivelling chute 12 and be contained in swivelling chute 12 washings weight etc. and change.Usually, transition revolution Rs is about Rs=10 ~ 50rpm.

In 4th embodiment, revolution control part 55 through T=Tc0 reaches rotation irregular region transition revolution Rs till as initial rotary area from starting motor 33 to be energized, namely from T=0 using in low speed rotation region.That is, revolution control part 55 sets transition revolution Rs, the revolution R of swivelling chute 12 is less than this transition revolution Rs, the namely region of R < Rs and is set as initial rotary area.

On the other hand, the region of R >=Rs that the revolution control part 55 revolution R that the revolution R of swivelling chute 12 is more than or equal to transition revolution Rs, namely swivelling chute 12 increases with uniform acceleration is regularly set as even acceleration rotary area.

In the 4th embodiment, as shown in figure 12, for each region of these initial rotary areas and even acceleration rotary area, distinguish capping acceleration according to the weight of washings and detect number of times.

That is, as upper limit acceleration, storage part 58 rotates upper limit acceleration A L1 for initial rotary area storing initial, stores even acceleration rotate upper limit acceleration A L2 for even acceleration rotary area.Now, even acceleration rotation upper limit acceleration A L2 is set to be greater than initial rotation upper limit acceleration A L1, namely AL1 < AL2.

In addition, storage part 58 rotates upper limit number of times EL1 for initial rotary area storing initial, stores even acceleration rotate upper limit number of times EL2 for even acceleration rotary area.Now, even acceleration rotation upper limit number of times EL2 is set to be less than initial rotation upper limit number of times EL1, namely EL1 > EL2.

When the revolution R of swivelling chute 12 is in initial rotary area, revolution control part 55 counts the vibration obtained from vibration obtaining section 54 by acceleration transducer 46, the acceleration a that namely puts on tank 13 be greater than initial rotate upper limit acceleration A L1 initially rotate over times N L1.And, when this initially rotate over times N L1 reach the initial rotation upper limit number of times EL1 preset time, revolution control part 55 stops the rotation the rotary actuation of groove 12, and forwards to and knead open operation.

On the other hand, when the revolution R of swivelling chute 12 is in even acceleration rotary area, revolution control part 55 counts the vibration obtained from vibration obtaining section 54 by acceleration transducer 46, the acceleration a namely putting on tank 13 is greater than even even acceleration of accelerating to rotate upper limit acceleration A L2 and rotates over times N L2.And, when this even acceleration rotate over times N L2 reach the even acceleration preset rotate the upper limit number of times EL2 time, revolution control part 55 stops the rotation the rotary actuation of groove 12, and forwards to and knead open operation.

These initial rotation upper limit acceleration A L1 in initial rotary area and initially rotate upper limit number of times EL1, and the even acceleration in even acceleration rotary area rotates upper limit acceleration A L2 and even acceleration rotates upper limit number of times EL2, based on following reason definition magnitude relationship.

When the revolution R of swivelling chute 12 is in initial rotary area, short from the institute's elapsed time that starts to be energized to motor 33.Therefore, the revolution of motor 33 is unstable, and is also difficult to the revolution detecting motor 33 exactly.In addition, motor 33 is due to its electrical characteristic, and after starting to be energized, revolution reaches tens of turns immediately.Its result, when being in initial rotary area, compared with even acceleration rotary area, often there is irregular change in the revolution R of swivelling chute 12.

On the other hand, when the revolution R of swivelling chute 12 is in even acceleration rotary area, the revolution of motor 33 is stable to be increased, but along with the increase of swivelling chute 12 revolution R, impact when contacting with tank 13 is often larger.

From above, when the revolution R of swivelling chute 12 is in initial rotary area, swivelling chute 12 is little with the contact impact of tank 13, but swivelling chute 12 is often higher with the contact frequency of tank 13.On the other hand, when swivelling chute 12 is in even acceleration rotary area, compared with initial rotary area, although the frequency that swivelling chute 12 contacts with tank 13 declines, impact when swivelling chute 12 contacts with tank 13 is often larger.

But, as explanation in the third embodiment, when the acceleration detected by acceleration transducer 46, namely swivelling chute 12 contacts with tank 13 time impact exceed the upper limit acceleration time stop the rotation immediately groove 12 rotation and forward to knead open operation time, cause extend dehydrating operation terminate till required time.

Therefore, in 4th embodiment, identical with the 3rd embodiment, from the view point of continuing dehydrating operation as far as possible, the relation initially rotating upper limit acceleration A L1 and even acceleration rotation upper limit acceleration A L2 is set as AL1 < AL2, and the relation initially rotating upper limit number of times EL1 and even acceleration rotation upper limit number of times EL2 is set as EL1 > EL2.

Thus, in initial rotary area, when relatively little vibration occurs with higher-frequency degree, the revolution of swivelling chute 12 is controlled.On the other hand, in even acceleration rotary area, when there is vibration large compared with initial rotary area, the revolution of swivelling chute 12 is controlled.

In other words, revolution control part 55 in initial rotary area until relatively little vibration continues dehydrating operation with higher-frequency degree, simultaneously in even acceleration rotary area until there is relatively large vibration to continue dehydrating operation.

Further, even acceleration rotates upper limit acceleration A L2 and even acceleration and rotates upper limit number of times EL2 and also can be set as respectively, the value identical with the low speed rotation upper limit acceleration A L in the 3rd embodiment and low speed rotation upper limit number of times EL or be less than their value.

Secondly, the operating process of the washing machine that the 4th embodiment relates to is described based on Figure 13.

Control device 50 performs washing operation, rinsing operation and dehydrating operation according to the operation sequence preset.Control device 50 obtained the weight (S301) of the washings being accommodated in swivelling chute 12 before washing operation starts.

Obtain the weight of washings in S301 after, control device 50 performs washing and runs and rinsing operation (S302).After terminating washing operation and rinsing operation, control device 50 starts dehydrating operation (S303).And when washing machine 10 starts dehydrating operation, revolution obtaining section 53 obtains the revolution R(S304 of the swivelling chute 12 in dehydrating operation).

Obtain the revolution R of swivelling chute 12 in S304 after, whether the revolution R that revolution control part 55 judgement obtains is more than or equal to transition revolution Rs(S305).When be judged as in S305 revolution R be less than transition revolution Rs, namely R < Rs time (in S305 "No"), vibration obtaining section 54 obtain the acceleration a(S306 putting on tank 13 from acceleration transducer 46).When revolution R is less than transition revolution Rs, be judged as that the swivelling chute 12 starting to rotate in S303 is in initial rotary area.

On the other hand, when be judged as in S305 revolution R be more than or equal to transition revolution Rs, namely R >=Rs time (in S305 "Yes"), vibration obtaining section 54 obtain the acceleration a(S307 putting on tank 13 from acceleration transducer 46).When revolution R is more than or equal to transition revolution Rs, be judged as that the swivelling chute 12 starting to rotate in S303 has arrived even acceleration rotary area through initial rotary area.

When obtaining the acceleration a in initial rotary area in S306, revolution control part 55 judges whether the acceleration a that this obtains is greater than initial rotation upper limit acceleration A L1(S308).That is, the acceleration a obtained and the initial rotation upper limit acceleration A L1 being stored in storage part 58 compare by revolution control part 55, and whether the acceleration a that judgement obtains is greater than initial rotation upper limit acceleration A L1, namely a > AL1.

Be judged as in S308 acceleration a be greater than initial rotate upper limit acceleration A L1, namely a > AL1 time (in S308 "Yes"), this is judged as that the number of times of a > AL1 carries out counting (S309) as initially rotating over times N L1 by revolution control part 55.

Revolution control part 55 will be judged as that the number of times of a > AL1 is stored in storage part 58 as initially rotating over times N L1.And whether what revolution control part 55 judged to count in S309 initially rotate over times N L1 reaches the initial rotation upper limit number of times EL1(S310 preset).

That is, revolution control part 55 judges whether NL1 >=EL1.When the acceleration a being judged as obtaining in S306 be a > AL1 initially rotate over times N L1 reach initial rotate upper limit number of times EL1, namely NL1 >=E1L time (in S310 "Yes"), revolution control part 55 stop the rotation groove 12 rotation and perform and knead open operation (S311).Perform in S311 after kneading open operation, control device 50 returns S303, and again starts dehydrating operation.

On the other hand, when be judged as in S308 acceleration a be less than or equal to initial rotate upper limit acceleration A L1, namely a≤AL1 time (in S308 "No"), and judge in S310 acceleration a be a > AL initially rotate over times N L1 do not reach initial rotate upper limit number of times EL1, namely NL1 < EL1 time (in S310 "No"), revolution control part 55 returns S304, and the process repeatedly after S304.

When obtaining the acceleration a in even acceleration rotary area in S307, revolution control part 55 judges whether the acceleration a that this obtains is greater than even acceleration rotation upper limit acceleration A L2(S312).Namely, revolution control part 55 by the acceleration a obtained be stored in storage part 58 evenly accelerates to rotate upper limit acceleration A L2 and compares, and whether the acceleration a that judgement obtains is greater than even acceleration rotation upper limit acceleration A L2, namely a > AL2.

When be judged as in S312 acceleration a be greater than even acceleration rotate upper limit acceleration A L2, namely a > AL2 time (in S312 "Yes"), this is judged as that the number of times of a > AL2 rotates over number of times EL2 as even acceleration and carries out counting (S313) by revolution control part 55.Revolution control part 55 will be judged as that the number of times of a > AL2 rotates over times N L2 as even acceleration and is stored in storage part 58.

And revolution control part 55 judges that the even acceleration counted in S313 rotates over times N L2 and whether reaches the even acceleration rotation upper limit number of times EL2(S314 preset).That is, revolution control part 55 judges whether NL2 >=EL2.

When the even acceleration that the acceleration a being judged as obtaining in S307 is a > AL2 rotate over times N L2 reach even acceleration rotate upper limit number of times EL2, namely NL2 >=EL2 time (in S314 "Yes"), revolution control part 55 forwards S311 to, the rotation of the groove 12 that stops the rotation and perform and knead open operation (S311).Perform in S311 after kneading open operation, control device 50 returns S303, and again starts dehydrating operation.

On the other hand, when be judged as in S312 acceleration a be less than or equal to even acceleration rotate upper limit acceleration A L2, namely a≤AL2 time (in S312 "No"), revolution control part 55 returns S307 and obtains the acceleration a putting on tank 13 in even acceleration rotary area, and the process repeatedly after S312.

In addition, when be judged as in S314 acceleration a be the even acceleration of a > AL2 rotate over times N L2 do not reach even acceleration rotate upper limit number of times EL2, namely NL2 < EL2 time (in S314 "No"), revolution control part 55 had judged whether to cross the dewatering time (S315) preset.

When being judged as dewatering time out-of-date (in S315 "Yes"), control device 50 terminates dehydrating operation (S316), and terminates the operation of washing machine 10.On the other hand, when be judged as in S315 dewatering time without time (in S315 "No"), revolution control part 55 returns in S307 the acceleration a putting on tank 13 obtained in even acceleration rotary area, and the process repeatedly after S312.

As mentioned above in the 4th embodiment, low speed rotation region is further divided into initial rotary area and even acceleration rotary area, and sets the benchmark of acceleration respectively and exceed the benchmark of number of times.Thus, when swivelling chute 12 is in initial rotary area, compared with even acceleration rotary area described later, even if repeatedly there is small vibration, revolution control part 55 also allows these vibrations and makes swivelling chute 12 continue to rotate.

Therefore, the initial stage of dehydrating operation, the rotation of swivelling chute 12 is irregular and when often there is small vibration, swivelling chute 12 allows this vibration and proceeds dehydrating operation.Its result, need not stop dehydrating operation under extremely slight vibration, thus avoid reforming knead open operation and dehydrating operation.

In contrast, when swivelling chute 12 is in even acceleration rotary area, revolution control part 55 allows to make swivelling chute 12 continue to rotate relative to little vibration, but when there is larger vibration, even if number of times also makes the rotation of swivelling chute 12 stop less.

Along with the increase of swivelling chute 12 revolution, vibration also often becomes large, thus becomes the reason that noise or machine breakdown occur.Therefore, when there is relatively large vibration in even acceleration rotary area, even if number of times is few, revolution control part 55 also makes the rotation of swivelling chute 12 stop.

Like this when being in even acceleration rotary area, allow microvibration, but control the rotation of swivelling chute 12 when there is larger vibration.So, by continuing the rotation of swivelling chute 12 as far as possible, when the prolongation of the total run time that the dehydrating operation that can not cause reforming brings, noise or machine breakdown can be reduced.

Other embodiment

In above-mentioned several embodiments, the perpendicular axis type washing machine 10 that the rotary middle spindle of swivelling chute 12 is parallel with gravity direction to be hung from the top of gravity direction by tank 13 is illustrated.But the control illustrated in above-mentioned several embodiment, is not limited in perpendicular axis type washing machine 10, the so-called clino-axis type washing machine that the rotary middle spindle also going for swivelling chute 12 tilts relative to gravity direction.

In addition, in the above description, describe indivedual example using each embodiment in washing machine 10, but also several embodiment can be used in combination in washing machine 10.Such as, also the second embodiment and the 3rd embodiment or the 4th embodiment can be used in combination in washing machine 10.

Above, present invention illustrates several embodiment, but these embodiments exemplarily propose, do not mean at the protection domain limiting invention.These new embodiments can be implemented with other various ways, in the scope not departing from invention aim, can carry out various omission, replacement, change.These embodiments or its distortion, in the protection domain being contained in invention or aim, be also contained in the protection domain of invention and its equalization recorded in claims.

Claims (7)

1. a washing machine, it possesses:

Shell;

Tank, is accommodated in above-mentioned shell;

Swivelling chute, is accommodated in above-mentioned tank;

Driver element, for the above-mentioned swivelling chute of rotary actuation;

Supporting structure portion, at the above-mentioned tank of above-mentioned shell internal support;

Rotation number detecting unit, for detecting the revolution of above-mentioned swivelling chute;

Vibration detecting unit, is located on above-mentioned tank, and detects according to the acceleration putting on above-mentioned tank the vibration putting on above-mentioned tank;

Control device, the acceleration putting on above-mentioned tank detected by above-mentioned vibration detecting unit and the upper limit acceleration preset are compared, the number of times that exceedes being judged as the acceleration putting on above-mentioned tank and being greater than above-mentioned upper limit acceleration is counted, and controls based on the above-mentioned revolution of number of times to the above-mentioned swivelling chute by above-mentioned drive unit drives that exceed.

2. washing machine according to claim 1, wherein,

The revolution of above-mentioned swivelling chute is divided into by above-mentioned control device, be less than the low speed rotation region of the lower limit revolution preset and be more than or equal to the high speed rotary area of above-mentioned lower limit revolution, and setting low speed rotation upper limit acceleration (AL) as the above-mentioned upper limit acceleration in above-mentioned low speed rotation region, the high speed that setting is greater than above-mentioned low speed rotation upper limit acceleration (AL) rotates upper limit acceleration (AH) as the above-mentioned upper limit acceleration in above-mentioned high speed rotary area;

When the revolution of above-mentioned swivelling chute is in above-mentioned low speed rotation region, above-mentioned control device exceedes number of times (NL) to the number of times, the i.e. low speed rotation that are judged as the acceleration putting on above-mentioned tank detected by above-mentioned vibration detecting unit and are greater than above-mentioned low speed rotation upper limit acceleration (AL) and counts, when above-mentioned low speed rotation exceed number of times (NL) reach the low speed rotation upper limit number of times (EL) preset time, the revolution of the above-mentioned swivelling chute by above-mentioned drive unit drives is controlled;

When the revolution of above-mentioned swivelling chute is in above-mentioned high speed rotary area, above-mentioned control device is greater than number of times, the i.e. high speed that above-mentioned high speed rotates upper limit acceleration (AH) and rotates over number of times (NH) to being judged as the acceleration putting on above-mentioned tank detected by above-mentioned vibration detecting unit and count, when above-mentioned high speed rotate over number of times (NH) reach preset be less than above-mentioned low speed rotation upper limit number of times (EL) high speed rotate the upper limit number of times (EH) time, the revolution of the above-mentioned swivelling chute by above-mentioned drive unit drives is controlled.

3. washing machine according to claim 2, is characterized in that,

The revolution of the above-mentioned swivelling chute in above-mentioned low speed rotation region is divided into by above-mentioned control device, the initial rotary area that the rotation making above-mentioned swivelling chute start to rotate rear above-mentioned swivelling chute by being energized to above-mentioned driver element increases brokenly, with the above-mentioned initial rotary area of continuity and even acceleration rotary area that the rotation of above-mentioned swivelling chute increases regularly, and, initial upper limit acceleration (AL1) that rotates of setting is as the above-mentioned upper limit acceleration in above-mentioned initial rotary area, the even acceleration that setting is greater than above-mentioned initial rotation upper limit acceleration (AL1) rotates upper limit acceleration (AL2) as the above-mentioned upper limit acceleration in above-mentioned even acceleration rotary area,

When the revolution of above-mentioned swivelling chute is in above-mentioned initial rotary area, above-mentioned control device be greater than being judged as the acceleration putting on above-mentioned tank detected by above-mentioned vibration detecting unit above-mentioned initial rotation upper limit acceleration (AL1) number of times, namely initially rotate over number of times (NL1) and count, when above-mentioned initially rotate over number of times (NL1) reach the initial rotation upper limit number of times (EL1) preset time, the revolution of the above-mentioned swivelling chute by above-mentioned drive unit drives is controlled;

When the revolution of above-mentioned swivelling chute is in above-mentioned even acceleration rotary area, above-mentioned control device is greater than above-mentioned even number of times, i.e. even acceleration of accelerating to rotate upper limit acceleration (AL2) and rotates over number of times (NL2) to being judged as the acceleration putting on above-mentioned tank detected by above-mentioned vibration detecting unit and count, when above-mentioned even acceleration rotate over number of times (NL2) reach the even acceleration being less than above-mentioned initial rotation upper limit number of times (EL1) preset rotate the upper limit number of times (EL2) time, the revolution of the above-mentioned swivelling chute by above-mentioned drive unit drives is controlled.

4. washing machine according to any one of claim 1 to 3, possesses further:

Weight sensing unit, for detecting the weight of the washings being accommodated in above-mentioned swivelling chute;

Setup unit by weight, according to the weight of the above-mentioned washings detected by above-mentioned weight sensing unit, sets above-mentioned upper limit acceleration and above-mentionedly exceedes number of times.

5. washing machine according to claim 4, wherein,

The weight of above-mentioned washings is less, and the above-mentioned number of times that exceedes is set as larger by above-mentioned weight sensing unit.

6. washing machine according to any one of claim 1 to 3, possesses further:

Temperature detecting unit, for detecting the temperature around above-mentioned tank;

By temperature setting unit, according to the temperature around the above-mentioned tank detected by said temperature detecting unit, set above-mentioned upper limit acceleration and above-mentionedly exceed number of times.

7. washing machine according to any one of claim 1 to 3, wherein,

The acceleration putting on above-mentioned tank that above-mentioned control device will be detected by above-mentioned vibration detecting unit, compare with the second upper limit acceleration of the first upper limit acceleration preset and the value that is greater than above-mentioned first upper limit acceleration, and, to be judged as the acceleration putting on above-mentioned tank and be greater than above-mentioned first upper limit acceleration number of times, namely first exceed number of times, and be judged as the acceleration putting on above-mentioned tank be greater than above-mentioned second upper limit acceleration number of times, namely second exceed number of times and count;

When the acceleration putting on above-mentioned tank is greater than above-mentioned second upper limit acceleration, above-mentioned second exceedes the revolution controlling above-mentioned swivelling chute when number of times reaches a time;

When the acceleration putting on above-mentioned tank is greater than above-mentioned first upper limit acceleration and is less than or equal to above-mentioned second upper limit acceleration, above-mentioned first exceedes the revolution controlling above-mentioned swivelling chute when number of times reaches the detection number of times preset.