WO2015185008A1 - Drum washing machine - Google Patents
Drum washing machine Download PDFInfo
- Publication number
- WO2015185008A1 WO2015185008A1 PCT/CN2015/080822 CN2015080822W WO2015185008A1 WO 2015185008 A1 WO2015185008 A1 WO 2015185008A1 CN 2015080822 W CN2015080822 W CN 2015080822W WO 2015185008 A1 WO2015185008 A1 WO 2015185008A1
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- WIPO (PCT)
- Prior art keywords
- drum
- unit
- drive
- rotating body
- axis
- Prior art date
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- 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
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/08—Control circuits or arrangements thereof
-
- 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
Definitions
- the present invention relates to a drum type washing machine.
- the drum type washing machine may continuously carry out the process from washing to drying, or may perform only washing but not drying.
- a drum type washing machine rotates a horizontal axis drum in an outer tank in which water is stored at the bottom, and lifts the laundry up and down by a baffle provided in the drum to drop the laundry onto the inner circumferential surface of the drum.
- the laundry is washed therefrom (see Patent Document 1).
- the drum type washing machine is less likely to have a smaller mechanical force acting on the laundry than the fully automatic washing machine that rotates the pulsator in the washing and dewatering tank to wash the laundry, and the detergency performance is liable to be lowered.
- Patent Document 1 Japanese Laid-Open Patent Publication No. 2013-240577
- the laundry When washing is carried out, the laundry is usually put into the drum in a dry state.
- a large amount of dry laundry is accommodated in the drum, there is a possibility that the laundry is compressed between the door in front of the drum and the agitating body behind the drum, and the agitating body is pressed by the laundry.
- the friction coefficient becomes larger when the laundry is in a dry state than in a state of being wetted. Therefore, when the drum and the agitating body are each rotated in a state where the agitating body is pressed against the dried laundry, the agitating body receives a large load due to the laundry, and the driving motor that drives the agitating body is locked.
- the present invention has been made in view of the above problems, and an object thereof is to provide a drum type washing machine capable of The improvement of the cleaning performance can prevent problems such as malfunction of the driving unit.
- a main aspect of the present invention relates to a drum type washing machine that performs a washing operation including a washing process, a rinsing process, and a spin-drying process.
- the drum type washing machine of the present embodiment includes a washing step, a rinsing step, and a dehydrating step.
- a drum type washing machine according to the present invention includes an outer tank that is disposed in a casing, and a water supply unit that supplies water into the outer tank.
- the drum is disposed in the outer tank and can be inclined on a horizontal axis or in a horizontal direction.
- a tilting shaft is rotated centrally; a rotating body disposed at a rear portion of the drum and having a protrusion on the surface in contact with the laundry; and a driving portion capable of being in a two-axis driving form and a shaft driving form
- the drum and the rotating body are rotated, and the two-axis driving mode is a driving form in which the drum and the rotating body are respectively rotated so that the rotating speed of the rotating body is faster than the rotating speed of the rotating body
- the one-axis driving mode is a driving form in which the drum and the rotating body are integrally rotated such that a rotation speed of the rotating body becomes equal to a rotation speed of the drum; and a control unit controls The operation of the drive unit.
- the control unit performs the rotation of the drum and the rotating body based on the two-axis driving form by the driving unit, and passes through the water supply unit.
- the drive unit performs rotation of the drum and the rotating body based on the one-axis drive mode.
- the laundry can be wetted by the water in the drum, and the volume of the laundry and the friction coefficient can be reduced, and then the rotation of the drum and the rotating body based on the two-axis driving mode can be performed.
- the driving unit from causing problems such as the motor being locked.
- the driving unit may have a configuration in which the driving form of the driving unit is switched between the two-axis driving mode and the one-axis driving mode. a clutch mechanism portion and a form detecting portion that detects the driving form.
- the control unit causes the clutch mechanism unit to operate such that the drive mode is switched to the one-axis drive mode when the washing operation is completed, and the drum and the Before the rotating body rotates in a state where water is stored in the drum, the form detecting unit detects the driving form, and when the driving form is in the two-axis driving mode, the clutch mechanism unit Switching from the two-axis drive mode to the drive mode of the one-axis drive mode is performed.
- the one-axis driving mode is performed as long as the switching to the one-axis driving mode is not completed. Switching. Thereby, it is possible to prevent the rotation of the drum and the rotating body based on the two-axis driving mode from being erroneously performed, and it is possible to further prevent a problem in the driving portion.
- a configuration may be employed in which a water level detecting unit that detects a water level in the outer tank can be used.
- the control unit After the rotation of the drum and the rotating body based on the one-axis driving mode, when the water level detected by the water level detecting unit reaches a predetermined water level, the control unit The drive unit starts the rotation of the drum and the rotating body based on the two-axis drive mode.
- the rotation of the drum and the rotating body based on the two-axis driving mode can be performed, and the problem of the driving portion can be further prevented.
- the control unit starts the drive based on the one-axis driving mode after the drum is supplied with water until the drum is not passed by the water in the outer tank.
- the drum and the rotation of the rotating body starts the drive based on the one-axis driving mode after the drum is supplied with water until the drum is not passed by the water in the outer tank. The drum and the rotation of the rotating body.
- control unit may be configured such that, in the rinsing step, water is stored in the drum by the water supply from the water supply unit.
- the drive unit performs rotation of the drum and the rotating body based on the two-axis driving mode without performing rotation of the drum and the rotating body in the one-axis driving mode.
- the drum and the rotating body are rotated in the two-axis driving mode from the beginning without rotating the drum and the rotating body based on the one-axis driving mode. Therefore, further improvement in rinsing performance can be expected.
- FIG. 1 is a side cross-sectional view showing a configuration of a drum type washing machine according to an embodiment.
- FIG. 2 is a cross-sectional view showing a configuration of a drive unit according to an embodiment.
- FIG 3 is a cross-sectional view showing a configuration of a drive unit according to an embodiment.
- FIG. 4 is a front view of the rotor showing a configuration of a rotor of a drive motor according to the embodiment.
- Fig. 5 is an enlarged perspective view showing a rear portion of a bearing unit formed by a rack according to an embodiment.
- FIG. 6 is a view showing a configuration of a clutch body of a clutch mechanism portion according to the embodiment.
- FIG. 7 is a block diagram showing a configuration of a drum type washing machine according to an embodiment.
- FIG. 8 is a view showing a timing of switching the drive mode of the drive unit and a drive timing of the drive motor by the clutch mechanism unit in the washing operation according to the embodiment.
- FIG. 9 is a flowchart showing a control process in the washing process according to the embodiment.
- FIG. 10 is a flowchart showing a control process in the rinsing step according to the embodiment.
- FIG. 11 is a flowchart showing a control process in a washing process according to a modification.
- drum type washing machine which does not have a drying function as one embodiment of the drum type washing machine of the present invention will be described with reference to the drawings.
- FIG. 1 is a side cross-sectional view showing a configuration of a drum type washing machine 1.
- the drum type washing machine 1 is provided with a casing 10 that constitutes an appearance.
- the front surface 10a of the casing 10 is inclined upward from the central portion, and an inlet 11 for washing is formed on the inclined surface.
- the inlet 11 is covered by a door 12 that is freely opened and closed.
- the outer tank 20 is elastically supported by a plurality of dampers 21.
- the drum 22 is rotatably disposed in the outer tub 20.
- the outer groove 20 and the rear surface side of the drum 22 are inclined so as to become lower with respect to the horizontal direction. Thereby, the drum 22 rotates centering on the inclination axis inclined with respect to the horizontal direction.
- the inclination angle of the outer tub 20 and the drum 22 is set to about 10 to 20 degrees.
- the opening 20a of the front surface of the outer tub 20 and the opening 22a of the front surface of the drum 22 face the input port 11, and are closed by the door 12 together with the input port 11.
- a plurality of dewatering holes 22b are formed on the inner peripheral surface of the drum 22, a plurality of dewatering holes 22b are formed.
- three lifting ribs 23 are provided at substantially equal intervals in the circumferential direction.
- the agitating body 24 is rotatably disposed at the rear of the drum 22 .
- the agitating body 24 has a substantially disk shape.
- the agitating body 24 rotates coaxially with the drum 22.
- the agitating body 24 corresponds to the rotating body of the present invention, and the vane 24a corresponds to the protruding portion of the present invention.
- a drive unit 30 that generates torque for driving the drum 22 and the agitating body 24 is disposed behind the outer tub 20.
- the drive unit 30 corresponds to the drive unit of the present invention.
- the driving unit 30 rotates the drum 22 and the stirring body 24 at different rotation speeds in the same direction. Specifically, the drive unit 30 rotates the drum 22 at a rotational speed at which the centrifugal force applied to the laundry in the drum 22 is less than the gravity, and rotates the agitating body 24 at a rotational speed faster than the rotational speed of the drum 22.
- the drive unit 30 integrally rotates the drum 22 and the agitating body 24 with a centrifugal force that is applied to the laundry in the drum 22 much larger than the rotational speed of gravity.
- the detailed structure of the drive unit 30 will be described later.
- a drain port portion 20b is formed at the bottom of the outer tub 20.
- a drain valve 40 is provided in the drain port portion 20b.
- the drain valve 40 is connected to the drain hose 41. When the drain valve 40 is opened, the water stored in the outer tank 20 is discharged to the outside through the drain hose 41.
- a detergent box 50 is disposed in the front upper portion of the casing 10.
- the detergent container 50a containing the detergent is accommodated in the detergent box 50 so as to be freely extracted from the front.
- the detergent box 50 is connected to the water supply valve 51 disposed at the rear upper portion in the casing 10 through the water supply hose 52. Further, the detergent box 50 is connected to the upper portion of the outer tub 20 through a water injection pipe 53.
- the water supply valve 51 When the water supply valve 51 is opened, tap water from the faucet is supplied into the outer tank 20 through the water supply hose 52, the detergent box 50, and the water injection pipe 53. At this time, the detergent contained in the detergent container 50a is supplied into the outer tub 20 along the water flow.
- the water supply valve 51 corresponds to the water supply unit of the present invention.
- FIG. 2 and 3 are cross-sectional views showing the configuration of the drive unit 30.
- 2 shows a state in which the driving form of the driving unit 30 is switched to the two-axis driving mode
- FIG. 3 shows a state in which the driving form of the driving unit 30 is switched to the one-axis driving mode.
- FIG. 4 is a front view showing the rotor 110 of the structure of the rotor 110 of the drive motor 100.
- FIG. 5 is an enlarged perspective view of the rear portion of the bearing unit 500 in which the rack 514 is formed.
- 6(a) to 6(c) are views showing a configuration of a clutch body 610 of the clutch mechanism portion 600, which are respectively a front view, a right side view, and a rear view of the clutch body 610.
- the drive unit 30 includes a drive motor 100, a wing shaft 200, a drum shaft 300, a planetary gear mechanism 400, a bearing unit 500, and a clutch mechanism portion 600.
- the drive motor 100 generates torque for driving the agitating body 24 and the drum 22.
- the wing shaft 200 is rotated by the torque of the drive motor 100, and the rotation is transmitted to the agitating body 24.
- the planetary gear mechanism 400 decelerates the rotation of the wing shaft 200, that is, the rotation of the rotor 110 of the drive motor 100, and transmits it to the drum shaft 300.
- the drum shaft 300 rotates coaxially with the wing shaft 200 at a rotational speed decelerated by the planetary gear mechanism 400, and transmits the rotation to the drum 22.
- the 500 supports the wing shaft 200 and the drum shaft 300 in a freely rotatable manner.
- the clutch mechanism unit 600 switches the driving form of the driving unit 30 between the two-axis driving mode in which the agitating body 24, that is, the wing shaft 200, and the rotational speed of the driving motor 100 are switched.
- the rotation speed is rotated at an equal speed
- the drum shaft 230 that is, the drum shaft 300, is rotated at a rotation speed decelerated by the planetary gear mechanism 40.
- the one-shaft drive mode is such that the agitating body 24 and the drum 22, that is, the wing shaft 200.
- the drum shaft 300 and the planetary gear mechanism 400 are integrally rotated at a rotation speed equal to that of the drive motor 100.
- the drive motor 100 is an outer rotor type DC brushless motor including a rotor 110 and a stator 120.
- the rotor 110 is formed in a bottomed cylindrical shape, and permanent magnets 111 are arranged on the inner circumferential surface thereof over the entire circumference.
- a circular boss portion 112 is formed at a central portion of the rotor 110.
- a boss hole 113 for fixing the wing shaft 200 is formed in the boss portion 112, and an annular engaged recess 114 is formed on the outer circumference of the boss hole 113.
- the outer peripheral portion of the engaged recessed portion 114 has the uneven portion 114a over the entire circumference.
- the engaged recess 114 corresponds to the first engaged portion of the present invention.
- the stator 120 has a coil 121 at the outer peripheral portion.
- a drive current is supplied to the coil 121 of the stator 120 from a motor drive unit to be described later, the rotor 110 rotates.
- the drum shaft 300 has a hollow shape and encloses the wing shaft 200 and the planetary gear mechanism 400.
- the center portion of the drum shaft 300 is bulged outward, and the bulged portion constitutes a housing portion of the planetary gear mechanism 400.
- the planetary gear mechanism 400 includes a sun gear 410, an annular internal gear 420 surrounding the sun gear 410, a plurality of sets of planetary gears 430 interposed between the sun gear 410 and the internal gear 420, and a planet that rotatably holds the planetary gears 430 Carrier 440.
- the sun gear 410 is fixed to the wing shaft 200, and the internal gear 420 is fixed to the drum shaft 300.
- a set of planet gears 430 includes a first gear and a second gear that mesh with each other and rotate in opposite directions.
- the planet carrier 440 includes a carrier shaft 441 that extends rearward.
- the carrier shaft 441 is coaxial with the drum shaft 300, and is internally hollow to allow the wing shaft 200 to be inserted.
- the rear end portion of the wing shaft 200 protrudes rearward from the carrier shaft 441 and is fixed to the boss hole 113 on the rotor 110.
- a cylindrical bearing portion 510 is provided at the center portion. Inside the bearing portion 510, rollers 511 and 512 are provided at the front and rear portions, and a mechanical seal 513 is provided at the front end portion. The outer peripheral surface of the drum shaft 300 is supported by the rollers 511, 512 and smoothly rotates in the bearing portion 510. In addition, intrusion of water between the bearing portion 510 and the drum shaft 300 is prevented by the mechanical seal 513. As shown in Figure 5 A rack 514 is formed on the inner surface of the rear end portion of the bearing portion 510 over the entire circumference.
- a fixing flange portion 520 is formed around the bearing portion 510.
- a mounting boss 521 is formed at a lower end portion of the fixing flange portion 520.
- the bearing unit 500 is fixed to the rear surface of the outer tub 20 by a fixing method such as screw fastening by means of the fixing flange portion 520.
- a fixing method such as screw fastening by means of the fixing flange portion 520.
- the clutch mechanism unit 600 includes a clutch body 610, a clutch spring 620, a clutch lever 630, a lever support portion 640, a clutch drive device 650, a joint bar 660, and a mounting plate 670.
- the clutch body 610 has a substantially disk shape.
- An annular rack 611 is formed on the outer peripheral surface of the front end portion of the clutch body 610.
- the rack 611 is formed to be engaged with the rack 514 of the bearing unit 500.
- a flange portion 612 is formed on the outer circumferential surface of the clutch body 610 behind the rack 611.
- an annular engagement flange portion 613 is formed at the rear end portion.
- the engagement flange portion 613 has the same shape as the engaged concave portion 114 of the rotor 110, and has an uneven portion 613a over the entire circumference of the outer peripheral portion. When the engagement flange portion 613 is inserted into the engaged recessed portion 114, the uneven portions 613a, 114a are engaged with each other.
- the carrier shaft 441 is inserted into the shaft hole 614 of the clutch body 610.
- the rack 614a formed on the inner peripheral surface of the shaft hole 614 is engaged with the rack 441a formed on the outer peripheral surface of the carrier shaft 441.
- the clutch body 610 is in a state in which the movement in the front-rear direction is permitted with respect to the carrier shaft 441 and the rotation in the circumferential direction is restricted.
- an annular receiving groove 615 is formed outside the shaft hole 614, and a clutch spring 620 is housed in the receiving groove 615.
- One end of the clutch spring 620 is in contact with the rear end portion of the bearing portion 510, and the other end is in contact with the bottom surface of the receiving groove 615.
- a pressing portion 631 that comes into contact with the rear surface of the flange portion 612 of the clutch body 610 and pushes the flange portion 612 forward is formed at the upper end portion of the clutch lever 630.
- the clutch lever 630 has a support shaft 632, and the support shaft 632 is rotatably supported by the lever support portion 640.
- the spring 641 is sandwiched between the clutch lever 630 and the lever support portion 640.
- the spring 641 is a tension spring, and the clutch lever 630 is biased toward the front by the elastic force of the spring 641.
- the clutch driving device 650 includes a torque motor 651 and a disk-shaped cam 652 that rotates around the horizontal axis using the torque of the torque motor 651.
- the upper surface of the cam 652 is in contact with the lower end portion of the clutch lever 630.
- the upper surface of the cam 652 includes a first contact surface 652a having a higher height disposed on one end side, a second contact surface 652b having a lower height disposed on the other end side, and connecting the first contact surface 652a and the second contact surface 652b.
- the lever support portion 640 and the clutch drive device 650 are fixed to the mounting plate 660 by a fixing method such as screw fastening.
- the mounting plate 660 is fixed to the mounting boss 521 of the bearing unit 500 by screws.
- the cam 652 passes through the torque motor 651 such that the first contact surface 652a is located above and the second contact surface 652b The way it is below rotates.
- the lower end portion of the clutch lever 630 is sequentially pressed by the inclined surface 652c and the first contact surface 652a to move rearward.
- the clutch lever 630 is rotated forward about the support shaft 632, and the pressing portion 631 pushes the clutch body 610 forward.
- the clutch body 610 moves forward against the elastic force of the clutch spring 620, and the rack 611 of the clutch body 610 and the rack 514 of the bearing unit 500 are engaged.
- the carrier shaft 441 of the planetary gear mechanism 400 that is, the planetary carrier 440 is fixed in a state in which it cannot be rotated.
- the wing shaft 200 rotates at a rotational speed equal to the rotational speed of the rotor 110, and the agitating body 24 coupled to the wing shaft 200 also rotates at the same speed as the rotational speed of the rotor 110. The speed is rotated.
- the sun gear 410 rotates in the planetary gear mechanism 400.
- the drum shaft 300 fixed to the inner gear 420 is in the same direction as the wing shaft 200, and is rotated at a rotation speed slower than the wing shaft 200, and the drum 22 fixed to the drum shaft 300 is more than the agitating body 24
- the slow rotation speed is rotated in the same direction as the agitating body 24.
- the agitating body 24 rotates in the same direction as the drum 22 at a rotational speed faster than the drum 22.
- the cam 652 passes through the torque motor 651 such that the second contact surface 652b is located above and first.
- the contact surface 652a is rotated in a manner of being located below.
- the lower end portion of the clutch lever 630 sequentially moves forward along the inclined surface 652c and the second contact surface 652b by the elastic force of the spring 641.
- the clutch lever 630 rotates rearward about the support shaft 632, and the pressing portion 631 is separated from the flange portion 612 of the clutch body 610.
- the clutch body 610 is rearward by the elastic force of the clutch spring 620 Moving, the engagement flange portion 613 of the clutch body 610 is engaged with the engaged recessed portion 114 of the rotor 110.
- the internal gear 420 rotates at a rotation speed equal to that of the sun gear 410 and the carrier 440, and the drum shaft 300 fixed to the internal gear 420 rotates at a rotation speed equal to that of the rotor 110. That is, in the drive unit 30, the wing shaft 200, the planetary gear mechanism 400, and the drum shaft 300 are integrally rotated. Thereby, the drum 22 and the agitating body 24 rotate integrally.
- FIG. 7 is a block diagram showing the configuration of the drum type washing machine 1.
- the drum type washing machine 1 further includes a control unit 701, a storage unit 702, an operation unit 703, a water level sensor 704, a motor drive unit 705, a water supply drive unit 706, a drain drive unit 707, a clutch drive unit 708, and Door lock device 709.
- the operation unit 703 includes a power button 703a, a start button 703b, and a mode selection button 703c.
- the power button 703a is a button for turning on and off the power of the drum type washing machine 1.
- the start button 703b is a button for starting the operation.
- the mode selection button 703c is a button for selecting an arbitrary operation mode from among a plurality of operation modes of the washing operation.
- the operation unit 703 outputs an input signal corresponding to the button operated by the user to the control unit 701.
- the water level sensor 704 detects the water level in the outer tank 20, and outputs a water level detection signal corresponding to the detected water level to the control unit 701.
- the water level sensor 704 corresponds to the water level detecting unit of the present invention.
- the motor drive unit 705 supplies a drive current to the drive motor 100 in accordance with a control signal from the control unit 701.
- the water supply driving unit 706 supplies a drive current to the water supply valve 51 based on a control signal from the control unit 701.
- the drain drive unit 707 supplies a drive current to the drain valve 40 based on a control signal from the control unit 701.
- the clutch drive 650 includes a first detection sensor 653 and a second detection sensor 654.
- the first detecting sensor 653 and the second detecting sensor 654 correspond to the form detecting unit of the present invention.
- the first detecting sensor 653 detects that the driving form of the driving unit 30 is switched to the two-axis driving mode, and outputs a detection signal to the control unit 701.
- the second detecting sensor 654 detects that the driving form of the driving unit 30 is switched to the one-axis driving mode, and outputs a detection signal to the control unit 701.
- the clutch drive unit 708 is based on The drive current is supplied from the first detection sensor 653 and the second detection sensor 654 to the torque motor 651 based on the control signal output from the control unit 701.
- the door lock device 709 performs locking and unlocking of the door 12 in accordance with a control signal from the control unit 701.
- the storage unit 702 includes an EEPROM, a RAM, and the like.
- a program for executing a washing operation of various washing operation modes is stored in the storage unit 702. Further, various parameters and various control flags for execution of these programs are stored in the storage unit 702.
- the control unit 701 controls the motor drive unit 705, the water supply drive unit 706, the drain drive unit 707, the clutch drive unit 708, and the door lock device based on the programs stored in the storage unit 702 based on the respective signals from the operation unit 703, the water level sensor 704, and the like. 709 and so on.
- the drum type washing machine 1 performs a washing operation in various operation modes in accordance with a user's selection operation by the mode selection button 703c.
- the washing step, the intermediate dehydration step, the rinsing step, and the final dehydration step are sequentially performed. Further, depending on the operation mode, the intermediate dehydration process and the rinsing process are sometimes performed twice or more.
- FIG. 8 is a view showing a switching timing of the driving form of the driving unit 30 and a driving timing of the driving motor 100 by the clutch mechanism unit 600 in the washing operation.
- the drive mode of the drive unit 30 is switched to the one-axis drive mode in accordance with the switching of the drive mode before the final spin-drying process in the previous washing operation before the start of the washing operation.
- the driving mode is maintained in the one-axis driving mode until the end of the water supply process.
- the drive motor 100 starts to operate from the water supply, and the drum 22 and the agitating body 24 integrally rotate.
- the rotational speed of the drum 22 and the agitating body 24 at this time is a rotational speed at which the centrifugal force acting on the laundry in the drum 22 is smaller than the gravity.
- the drive motor 100 alternately performs right rotation and left rotation, and the drum 22 and the agitating body 24 alternately perform right rotation and left rotation.
- the laundry in the drum 22 is stirred by the lifting ribs 23 to come into contact with the water stored in the drum 22. Since the laundry is wetted, the volume of the laundry within the drum 22 is reduced, and the friction of the laundry is reduced.
- the drive mode is switched from the one-axis drive mode to the two-axis drive mode.
- the drive motor 100 stops operating after the time required for switching.
- the washing process is started, and the drive motor 100 is operated again.
- the drum 22 and the agitating body 24 are each rotated in the same direction.
- the drum 22 is alternately rotated about the rotation speed of the drum 22 at the same rotation speed as that in the one-shaft driving mode.
- the laundry in the drum 22 is lifted up by the lifting ribs 23 and falls onto the inner circumferential surface of the drum 22.
- the washing and the stirring of the rotation The blade 24a of the body 24 is in contact with the laundry, and the laundry is agitated by the blade 24a or agitated by the blade 24a. Thereby, the laundry is washed.
- the mechanical force applied to the laundry is washed more than by the ribs 23, and the movement in the drum 22 of the laundry becomes active, so that the cleaning performance can be expected to be improved.
- the drive motor 100 stops operating.
- the driving mode continues to maintain the two-axis driving mode, and the drainage process is performed.
- the drive mode is switched from the two-axis drive mode to the one-shaft drive mode.
- the process shifts to the intermediate dehydration process. Further, the switching from the two-axis driving mode to the one-axis driving mode may be performed before the draining process.
- the drum 22 and the agitating body 24 rotate integrally with the centrifugal force of the laundry acting in the drum 22 much more than the gravity. Due to the centrifugal force, the laundry is pressed onto the inner peripheral surface of the drum 22 to be dehydrated.
- the rinsing process is followed.
- the driving form is switched from the one-axis driving mode to the two-axis driving mode.
- the drive motor 100 that has temporarily stopped the dehydration is operated again after the start of the switching, while the water supply is started.
- the drum 22 and the agitating body 24 perform right rotation and left rotation in the same manner as in the washing process.
- the laundry in the drum 22 is agitated by the lifting rib 23 and falls onto the inner peripheral surface of the drum 22, and the laundry or the blade 24a of the agitated body 24 is raked or agitated by the blade 24a.
- the laundry is thus rinsed.
- the mechanical force applied to the laundry is increased, and the movement of the laundry in the drum 22 is active, an improvement in the rinsing performance can be expected.
- the rinsing step since the laundry is dehydrated by the intermediate dehydration step, it is still in a wet state, so that the drive motor 100 is less likely to be locked. Therefore, in the rinsing step, the drum 22 and the agitating body 24 are rotated in the two-axis driving mode from the water supply step without performing the rotation of the drum 22 and the agitating body 24 in the one-axis driving mode. Therefore, it is expected that the rinsing performance is further improved.
- the drive motor 100 stops operating.
- the driving pattern continues to maintain the two-axis driving pattern, and the drainage process is performed.
- the drive mode is switched from the two-axis drive mode to the one-shaft drive mode. Switch to the final dewatering process when the switch is over. Further, the switching from the two-axis driving mode to the one-axis driving mode may be performed before the draining process.
- the drum 22 and the agitating body 24 are integrally rotated at a high speed, whereby the laundry is dehydrated. Further, in the final dehydration step, the dehydration time is longer than the intermediate dehydration step, and the rotation speed of the drum 22 and the agitating body 24 is faster.
- control process by the control unit 701 in the washing process and the rinsing process will be described in detail with reference to FIGS. 9 and 10 .
- FIG. 9 is a flowchart showing a control process in the washing process.
- the control unit 701 determines whether or not the driving form of the driving unit 30 is the one-axis driving mode based on the detection result of the second detecting sensor 654 (S101). Since the switching to the one-axis driving mode is normally performed in the final dehydration step in the last washing operation, the one-axis driving mode is maintained at the start of this washing operation. Therefore, when the control unit 701 determines that the driving mode is the one-axis driving mode (S101: YES), the water supply valve 51 is opened (S102). Thereby, the water supply to the outer tank 20 is started, and the detergent-containing water is supplied to the outer tank 20.
- the control unit 701 operates the torque motor 651 of the clutch mechanism unit 600 to switch the drive mode to one. Shaft drive mode (S103).
- the control unit 701 opens the water supply valve 51 (S102).
- the control unit 701 determines whether or not the water level in the outer tub 20 has reached the stirring water level based on the detection result of the water level sensor 704 (S104).
- the agitating water level is a predetermined water level which is a water level at which the drum 22 and the agitating body 24 start to rotate, and is a water level in which the circumferential surface of the drum 22 is not in the water, and is set to be lower than a washing water level to be described later.
- the control unit 701 causes the drive motor 100 to operate (S105).
- the drum 22 and the agitating body 24 integrally rotate at a low speed, and the laundry in the drum 22 comes into contact with the stored water and is stirred, soaked by water.
- the control unit 701 stops the drive motor 100 and closes the water supply valve 51 (S107).
- the control unit 701 determines whether or not the water level in the outer tub 20 has reached the predetermined washing water level based on the detection result of the water level sensor 704 (S108). In the case where the volume of the laundry is large and a large amount of water is absorbed by the laundry, it is difficult to reach the washing water level in one water supply time.
- the control unit 701 opens the water supply valve 51 again (S109) to operate the drive motor 100 (S105). Thus, step S105 is repeated to The treatment of S109 until the water level in the outer tank 20 reaches the washing water level.
- the laundry in the drum 22 is sufficiently fully wetted.
- the control unit 701 When the water level in the outer tank 20 reaches the washing water level (S108: YES), the control unit 701 operates the torque motor 651 to switch the driving form of the driving unit 30 to the two-axis driving mode (S110). When it is confirmed that the mode is switched to the two-axis driving mode based on the detection result of the first detecting sensor 653, the control unit 701 causes the driving motor 100 to operate (S111).
- the drum 22 and the agitating body 24 are respectively rotated at a low speed of the drum 22, and the agitating body 24 is rotated at a higher speed than the drum 22, and the laundry in the drum 22 is washed by the action of high mechanical force and detergent.
- the control unit 701 stops the drive motor 100 (S113). Then, the control unit 701 opens the drain valve 40 (S114). The water in the outer tank 20 is discharged to the outside of the washing machine.
- the control unit 701 determines whether or not the drainage has been completed (S115). The control unit 701 determines that the draining is completed when the water level in the outer tank 20 reaches a lower limit water level detectable by the water level sensor 704, for example, and then a predetermined time has elapsed. When the control unit 701 determines that the draining is completed (S115: YES), the drain valve 40 is closed (S116). Then, the control unit 701 operates the torque motor 651 to switch the drive mode of the drive unit 30 to the one-axis drive mode (S117). In this way, the control process of the washing process is completed.
- Fig. 10 is a flowchart showing a control process in the rinsing step.
- the control unit 701 When the rinsing process is started, the control unit 701 operates the torque motor 651 to switch the drive mode of the drive unit 30 to the two-axis drive mode (S201). When it is confirmed that the switching to the two-axis driving mode is made based on the detection result of the first detecting sensor 653, the control unit 701 opens the water supply valve 51 and operates the driving motor 100 (S202). The water supply is performed in the outer tank 20, and the drum 22 and the agitating body 24 are respectively rotated at a low speed of the drum 22, and the agitating body 24 is rotated at a higher speed than the drum 22, and the laundry in the drum 22 is rinsed by a high mechanical force.
- the control unit 701 stops the drive motor 100 and closes the water supply valve 51 (S204).
- the control unit 701 determines whether or not the water level in the outer tub 20 has reached a predetermined water level based on the detection result of the water level sensor 704 (S205). As long as the water level in the outer tank 20 does not reach the washing water level (S108: NO), the control unit 701 opens the water supply valve 51 again and operates the drive motor 100 (S202). In this manner, the processing of step S202 or S205 is repeated until the water level in the outer tank 20 reaches the rinsing water level.
- the control unit 701 causes the driving motor 100 work (S206). The washing is continued while the feed water is stopped.
- the control unit 701 stops the drive motor 100 (S208). Then, the control unit 701 opens the drain valve 40 (S209). The water in the outer tank 20 is discharged to the outside of the washing machine.
- the control unit 701 closes the drain valve 40 (S211). Then, the control unit 701 operates the torque motor 651 to switch the drive mode of the drive unit 30 to the one-axis drive mode (S212). In this way, the control process of the rinsing process ends.
- the drum 22 and the agitating body 24 are rotated such that the rotational speed of the agitating body 24 is faster than the rotational speed of the drum 22 .
- the laundry in the drum 22 is not only dropped onto the inner circumferential surface of the drum 22 by the agitation by the lifting ribs 23, but also by the blades 24a of the rotating agitating body 24. Therefore, the cleaning performance and the rinsing performance can be improved as compared with the structure in which the laundry is only stirred by the lifting ribs 23.
- the drum 22 and the agitating body 24 are integrally rotated in a one-axis driving mode while the water is stored in the drum 22, and the water in the washing drum 22 is wetted to make the volume of the laundry. After the friction coefficient is reduced, the drum 22 and the agitating body 24 are each rotated in a two-axis driving mode. Thereby, an excessive load generated by applying the laundry to the agitating body 24 can be prevented, and the drive motor 100 can be prevented from being locked. Further, it is possible to prevent damage to the laundry due to strong friction with the agitating body 24.
- the present embodiment before the rotation of the drum 22 and the agitating body 24 in the one-axis driving mode in the state in which the water is stored, it is detected whether or not the switching to the one-axis driving mode is completed, and if the switching is not completed, Switching to the one-axis drive mode is performed. Thereby, it is possible to prevent the rotation of the drum 22 and the agitating body 24 based on the two-axis driving mode from being erroneously performed, and it is possible to further prevent the driving motor 100 from being blocked.
- the rotation of the drum 22 and the agitating body 24 in the one-axis driving mode is performed until the water level in the outer tub 20 reaches the washing water level, the laundry in the drum 22 can be sufficiently wetted. Then, the rotation of the drum 22 and the agitating body 24 based on the two-axis driving mode is performed, and the drive motor 100 can be further prevented from being locked.
- the rotation of the drum 22 and the agitating body 24 based on the temporary driving mode is performed, so that the laundry cannot be prevented from contacting the outer tank.
- the rotation of the drum 22 and the agitating body 24 is performed in the state of 20 stored water, and waste of electricity can be prevented.
- the rotation of the drum 22 and the agitating body 24 based on the one-axis driving mode is not performed, but the water supply process is performed. Since the drum 22 and the agitating body 24 are rotated in accordance with the two-axis driving mode, further improvement in the rinsing performance can be expected.
- the water injection port of the water injection pipe 53 may directly protrude into the drum 22, and the laundry may be sprayed into the water from the water injection port toward the laundry in the drum 22.
- the processing of the step S104 of detecting the stirring water level is deleted, like As in the control process shown in Fig. 11, when the water supply valve 51 is opened, the drive motor 100 operates immediately.
- the rotation of the drum 22 and the agitating body 24 based on the two-axis driving mode is started.
- the configuration is not limited thereto, and the rotation of the drum 22 and the agitating body 24 based on the two-axis driving mode may be started after the first water supply time has elapsed.
- the drive motor 100 is stopped.
- the rotation of the drum 22 and the agitating body 24 based on the two-axis driving mode is started simultaneously with the water supply step.
- the drum 22 is rotated about the tilt axis that is inclined with respect to the horizontal direction.
- the drum type washing machine 1 may be configured to rotate the drum 22 around the horizontal axis.
- drum type washing machine 1 of the above embodiment does not have a drying function
- the present invention can also be applied to a drum type washing and drying machine which is a drum type washing machine having a drying function.
- 10 housing; 20: outer groove; 22: roller; 24: agitating body (rotating body); 24a: blade (projection); 30: drive unit (drive unit); 51: water supply valve (water supply); 600: clutch mechanism unit; 653: first detecting sensor (morphological detecting unit); 654: second detecting sensor (morphological detecting unit); 701: control unit; 704: water level sensor (water level detecting unit).
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Abstract
Provided is a drum-type washing machine able to improve washing performance and prevent drive system problems. The drum-type washing machine is provided with: an agitating body arranged at the rear of the drum; a drive unit able to cause rotation of the drum and of the agitating body by means of a double drive-shaft form or a single drive-shaft form, the double drive-shaft form causing the drum and the agitating body to rotate separately, with the agitating body rotating at a speed superior to that of the drum, and the single drive-shaft form causing the drum and the agitating body to rotate as a single unit, with the agitating body rotating at a speed identical to that of the drum; and a control portion for controlling the actions of the drive unit. During the washing process, before the drive unit undertakes to drive rotation of the drum and the agitating body on the basis of the double drive-shaft form (S110-S113), and there being water contained in the drum, the control portion causes the drive unit first to drive rotation of the drum and the agitating body on the basis of the single drive-shaft form (S105-S107).
Description
本发明涉及一种滚筒式洗衣机。该滚筒式洗衣机既可以连续进行从洗涤到烘干的工序,也可以只进行洗涤但不进行烘干。The present invention relates to a drum type washing machine. The drum type washing machine may continuously carry out the process from washing to drying, or may perform only washing but not drying.
以往,滚筒式洗衣机在底部蓄有水的外槽内使横轴式滚筒旋转,并通过设置在滚筒内的提升筋(baffle)将洗涤物举起落下,将洗涤物摔到滚筒的内周面上,由此洗涤洗涤物(参照专利文献1)。Conventionally, a drum type washing machine rotates a horizontal axis drum in an outer tank in which water is stored at the bottom, and lifts the laundry up and down by a baffle provided in the drum to drop the laundry onto the inner circumferential surface of the drum. The laundry is washed therefrom (see Patent Document 1).
这样,在通过提升筋搅拌洗涤物的结构中,洗涤物彼此之间很难互相缠绕或互相摩擦。因此,滚筒式洗衣机与在洗涤脱水槽内使搅拌器(pulsator)旋转来洗涤洗涤物的全自动洗衣机相比,作用于洗涤物的机械力易变小,去污性能易降低。Thus, in the structure in which the laundry is stirred by the ribs, the laundry is hardly entangled with each other or rubbed against each other. Therefore, the drum type washing machine is less likely to have a smaller mechanical force acting on the laundry than the fully automatic washing machine that rotates the pulsator in the washing and dewatering tank to wash the laundry, and the detergency performance is liable to be lowered.
因此,对于滚筒式洗衣机,为了提高去污性能,可以采用在滚筒的后表面设置搅拌体,在洗涤、漂洗时使滚筒与搅拌体以不同的旋转速度进行旋转的结构。Therefore, in order to improve the detergency performance of the drum type washing machine, it is possible to adopt a configuration in which a stirring body is provided on the rear surface of the drum, and the drum and the agitating body are rotated at different rotational speeds during washing and rinsing.
现有技术文献Prior art literature
专利文献Patent literature
专利文献1:日本特开2013-240577号公报Patent Document 1: Japanese Laid-Open Patent Publication No. 2013-240577
发明内容Summary of the invention
发明要解决的问题Problems to be solved by the invention
在进行洗涤时,洗涤物通常是在干燥的状态下被投入滚筒内。在滚筒内收纳有大量干燥的洗涤物的情况下,可能会呈现洗涤物在滚筒前面的门和滚筒后面的搅拌体之间被压缩,并且搅拌体被洗涤物压迫的状态。此外,洗涤物处于干燥状态时和处于浸湿的状态相比,摩擦系数变大。因此,当滚筒和搅拌体在像这样搅拌体被干燥的洗涤物压迫的状态下各自旋转时,会有搅拌体承受洗涤物所产生的大负荷,闭锁驱动搅拌体的驱动电机闭锁的可能。When washing is carried out, the laundry is usually put into the drum in a dry state. In the case where a large amount of dry laundry is accommodated in the drum, there is a possibility that the laundry is compressed between the door in front of the drum and the agitating body behind the drum, and the agitating body is pressed by the laundry. Further, the friction coefficient becomes larger when the laundry is in a dry state than in a state of being wetted. Therefore, when the drum and the agitating body are each rotated in a state where the agitating body is pressed against the dried laundry, the agitating body receives a large load due to the laundry, and the driving motor that drives the agitating body is locked.
本发明是鉴于该问题而完成的,其目的在于,提供一种滚筒式洗衣机,能
实现清洗性能的提高,能防止驱动部发生工作不良等问题。The present invention has been made in view of the above problems, and an object thereof is to provide a drum type washing machine capable of
The improvement of the cleaning performance can prevent problems such as malfunction of the driving unit.
用于解决问题的方案Solution to solve the problem
本发明的主要方式涉及一种滚筒式洗衣机,进行包括洗涤工序、漂洗工序以及脱水工序的洗涤运转。本实施方式的滚筒式洗衣机具备:洗涤工序、漂洗工序以及脱水工序。本发明所涉及的滚筒式洗衣机具备:外槽,配置于壳体内;给水部,供给水到所述外槽内;滚筒,配置于所述外槽内,能以水平轴或相对于水平方向倾斜的倾斜轴为中心进行旋转;旋转体,配置于所述滚筒的后部,并且在表面具有与洗涤物接触的突状部;驱动部,能以二轴驱动形态和一轴驱动形态使所述滚筒以及所述旋转体旋转,所述二轴驱动形态是以使所述旋转体的旋转速度变为比所述滚筒的旋转速度快的方式使所述滚筒和所述旋转体分别旋转的驱动形态,所述一轴驱动形态是以使所述旋转体的旋转速度变为与所述滚筒的旋转速度相等的方式使所述滚筒和所述旋转体一体地旋转的驱动形态;以及控制部,控制所述驱动部的动作。此处,在所述洗涤工序中,所述控制部在由所述驱动部进行基于所述二轴驱动形态的所述滚筒以及所述旋转体的旋转之前,并且在通过来自所述给水部的给水而在所述滚筒内蓄有水的状态下,由所述驱动部进行基于所述一轴驱动形态的所述滚筒以及所述旋转体的旋转。A main aspect of the present invention relates to a drum type washing machine that performs a washing operation including a washing process, a rinsing process, and a spin-drying process. The drum type washing machine of the present embodiment includes a washing step, a rinsing step, and a dehydrating step. A drum type washing machine according to the present invention includes an outer tank that is disposed in a casing, and a water supply unit that supplies water into the outer tank. The drum is disposed in the outer tank and can be inclined on a horizontal axis or in a horizontal direction. a tilting shaft is rotated centrally; a rotating body disposed at a rear portion of the drum and having a protrusion on the surface in contact with the laundry; and a driving portion capable of being in a two-axis driving form and a shaft driving form The drum and the rotating body are rotated, and the two-axis driving mode is a driving form in which the drum and the rotating body are respectively rotated so that the rotating speed of the rotating body is faster than the rotating speed of the rotating body The one-axis driving mode is a driving form in which the drum and the rotating body are integrally rotated such that a rotation speed of the rotating body becomes equal to a rotation speed of the drum; and a control unit controls The operation of the drive unit. Here, in the washing step, the control unit performs the rotation of the drum and the rotating body based on the two-axis driving form by the driving unit, and passes through the water supply unit. In the state where water is stored in the drum while the water is supplied, the drive unit performs rotation of the drum and the rotating body based on the one-axis drive mode.
根据上述的结构,能在洗涤物被滚筒内的水浸湿,从而洗涤物的体积以及摩擦系数降低之后,进行基于二轴驱动形态的滚筒以及旋转体的旋转。由此,能防止对旋转体施加洗涤物所产生的过度的负荷,能防止驱动部产生电机闭锁等问题。According to the above configuration, the laundry can be wetted by the water in the drum, and the volume of the laundry and the friction coefficient can be reduced, and then the rotation of the drum and the rotating body based on the two-axis driving mode can be performed. Thereby, it is possible to prevent an excessive load generated by applying the laundry to the rotating body, and it is possible to prevent the driving unit from causing problems such as the motor being locked.
在本实施方式的滚筒式洗衣机中,所述驱动部可以可以采用还具有以下组成部分的结构:在所述二轴驱动形态和所述一轴驱动形态之间切换所述驱动部的驱动形态的离合器机构部、以及检测所述驱动形态的形态检测部。在这种情况下,所述控制部使所述离合器机构部以使所述驱动形态在所述洗涤运转结束时被切换到所述一轴驱动形态的方式进行工作,并且在所述滚筒以及所述旋转体进行所述滚筒内蓄有水的状态下的旋转之前,通过所述形态检测部检测所述驱动形态,当所述驱动形态处于所述二轴驱动形态时,由所述离合器机构部进行从所述二轴驱动形态向所述一轴驱动形态的所述驱动形态的切换。In the drum type washing machine of the present embodiment, the driving unit may have a configuration in which the driving form of the driving unit is switched between the two-axis driving mode and the one-axis driving mode. a clutch mechanism portion and a form detecting portion that detects the driving form. In this case, the control unit causes the clutch mechanism unit to operate such that the drive mode is switched to the one-axis drive mode when the washing operation is completed, and the drum and the Before the rotating body rotates in a state where water is stored in the drum, the form detecting unit detects the driving form, and when the driving form is in the two-axis driving mode, the clutch mechanism unit Switching from the two-axis drive mode to the drive mode of the one-axis drive mode is performed.
根据上述的结构,在进行基于蓄有水的状态下的一轴驱动形态的滚筒以及旋转体的旋转之前,只要未结束向一轴驱动形态的切换就进行向一轴驱动形态
的切换。由此,能防止误进行基于二轴驱动形态的滚筒以及旋转体的旋转,能进一步防止驱动部发生问题。According to the configuration described above, before the rotation of the drum and the rotating body in the one-axis driving mode in the state in which the water is stored, the one-axis driving mode is performed as long as the switching to the one-axis driving mode is not completed.
Switching. Thereby, it is possible to prevent the rotation of the drum and the rotating body based on the two-axis driving mode from being erroneously performed, and it is possible to further prevent a problem in the driving portion.
在本实施方式的滚筒式洗衣机中,可以采用还具有检测所述外槽内的水位的水位检测部的结构。在这种情况下,所述控制部在基于所述一轴驱动形态的所述滚筒以及所述旋转体的旋转开始之后,当通过所述水位检测部检测到的水位到达规定水位时,由所述驱动部开始基于所述二轴驱动形态的所述滚筒以及所述旋转体的旋转。In the drum type washing machine of the present embodiment, a configuration may be employed in which a water level detecting unit that detects a water level in the outer tank can be used. In this case, after the rotation of the drum and the rotating body based on the one-axis driving mode, when the water level detected by the water level detecting unit reaches a predetermined water level, the control unit The drive unit starts the rotation of the drum and the rotating body based on the two-axis drive mode.
根据上述的结构,在滚筒内的洗涤物被充分浸湿的状态下,能进行基于二轴驱动形态的滚筒以及旋转体的旋转,能进一步防止驱动部发生问题。According to the above configuration, in the state where the laundry in the drum is sufficiently wetted, the rotation of the drum and the rotating body based on the two-axis driving mode can be performed, and the problem of the driving portion can be further prevented.
在本实施方式的滚筒式洗衣机中,所述控制部在所述滚筒被给水至所述滚筒被所述外槽内的水没过的状态之后,由所述驱动部开始基于所述一轴驱动形态的所述滚筒以及所述旋转体的旋转。In the drum type washing machine of the present embodiment, the control unit starts the drive based on the one-axis driving mode after the drum is supplied with water until the drum is not passed by the water in the outer tank. The drum and the rotation of the rotating body.
根据上述的结构,能防止在洗涤物无法与外槽内存蓄的水接触的状态下进行滚筒以及旋转体的旋转,能防止用电浪费。According to the above configuration, it is possible to prevent the drum and the rotating body from rotating in a state where the laundry cannot come into contact with the water stored in the outer tub, and it is possible to prevent waste of electricity.
在本实施方式的滚筒式洗衣机中,所述控制部可以采用以下结构:在所述漂洗工序中,在通过来自所述给水部的给水而使所述滚筒内蓄有水的状态下,由所述驱动部不进行基于所述一轴驱动形态的所述滚筒以及所述旋转体的旋转而是进行基于所述二轴驱动形态的所述滚筒以及所述旋转体的旋转。In the drum type washing machine of the present embodiment, the control unit may be configured such that, in the rinsing step, water is stored in the drum by the water supply from the water supply unit. The drive unit performs rotation of the drum and the rotating body based on the two-axis driving mode without performing rotation of the drum and the rotating body in the one-axis driving mode.
根据上述的结构,由于在洗涤物已经处于浸湿的状态的漂洗工序中,不进行基于一轴驱动形态的滚筒以及旋转体的旋转,从一开始就按照二轴驱动形态使滚筒以及旋转体旋转,因此能期待漂洗性能的进一步提高。According to the above-described configuration, in the rinsing step in which the laundry is already wetted, the drum and the rotating body are rotated in the two-axis driving mode from the beginning without rotating the drum and the rotating body based on the one-axis driving mode. Therefore, further improvement in rinsing performance can be expected.
发明效果Effect of the invention
根据本发明,能提供一种滚筒式洗衣机,其能实现清洗性能的提高,并且能防止驱动部发生工作不良等问题。According to the present invention, it is possible to provide a drum type washing machine which can improve the cleaning performance and can prevent problems such as malfunction of the driving portion.
本发明的效果以及意义通过如下所示的实施方式的说明可以进一步明确。但是,以下的实施方式只是实施本发明时的一个例示,本发明不受以下的实施方式所述技术方案的任何限制。The effects and significance of the present invention will be further clarified by the description of the embodiments shown below. However, the following embodiments are merely illustrative of the embodiments of the present invention, and the present invention is not limited by the technical solutions described in the following embodiments.
图1是表示实施方式所涉及的滚筒式洗衣机的结构的侧面剖视图。
FIG. 1 is a side cross-sectional view showing a configuration of a drum type washing machine according to an embodiment.
图2是表示实施方式所涉及的驱动单元的结构的剖视图。FIG. 2 is a cross-sectional view showing a configuration of a drive unit according to an embodiment.
图3是表示实施方式所涉及的驱动单元的结构的剖视图。3 is a cross-sectional view showing a configuration of a drive unit according to an embodiment.
图4是表示实施方式所涉及的驱动电机的转子的结构的、转子的主视图。4 is a front view of the rotor showing a configuration of a rotor of a drive motor according to the embodiment.
图5是实施方式所涉及的齿条形成的轴承单元的后部的放大立体图。Fig. 5 is an enlarged perspective view showing a rear portion of a bearing unit formed by a rack according to an embodiment.
图6是表示实施方式所涉及的离合器机构部的离合器体的结构的图。FIG. 6 is a view showing a configuration of a clutch body of a clutch mechanism portion according to the embodiment.
图7是表示实施方式所涉及的滚筒式洗衣机的结构的框图。FIG. 7 is a block diagram showing a configuration of a drum type washing machine according to an embodiment.
图8是表示实施方式所涉及的洗涤运转中通过离合器机构部进行的驱动单元的驱动形态的切换时机和驱动电机的驱动时机的图。FIG. 8 is a view showing a timing of switching the drive mode of the drive unit and a drive timing of the drive motor by the clutch mechanism unit in the washing operation according to the embodiment.
图9是表示实施方式所涉及的洗涤工序中的控制处理的流程图。FIG. 9 is a flowchart showing a control process in the washing process according to the embodiment.
图10是表示实施方式所涉及的漂洗工序中的控制处理的流程图。FIG. 10 is a flowchart showing a control process in the rinsing step according to the embodiment.
图11是表示变更例所涉及的洗涤工序中的控制处理的流程图。FIG. 11 is a flowchart showing a control process in a washing process according to a modification.
以下,关于作为本发明的滚筒式洗衣机的一个实施方式的不具有烘干功能的滚筒式洗衣机,参照附图进行说明。Hereinafter, a drum type washing machine which does not have a drying function as one embodiment of the drum type washing machine of the present invention will be described with reference to the drawings.
图1是表示滚筒式洗衣机1的结构的侧面剖视图。FIG. 1 is a side cross-sectional view showing a configuration of a drum type washing machine 1.
滚筒式洗衣机1具备构成外观的壳体10。壳体10的前表面10a从中央部向上部倾斜,在倾斜的面上形成有洗涤物的投入口11。投入口11由自由开闭的门12遮盖。The drum type washing machine 1 is provided with a casing 10 that constitutes an appearance. The front surface 10a of the casing 10 is inclined upward from the central portion, and an inlet 11 for washing is formed on the inclined surface. The inlet 11 is covered by a door 12 that is freely opened and closed.
在壳体10内,外槽20由多个减振器21弹性地支承。滚筒22自由旋转地配置于外槽20内。外槽20以及滚筒22以后表面侧相对于水平方向变低的方式倾斜。由此,滚筒22以相对于水平方向倾斜的倾斜轴为中心进行旋转。外槽20以及滚筒22的倾斜角度设定为10~20度左右。外槽20的前表面的开口部20a以及滚筒22的前表面的开口部22a与投入口11对置,并与投入口11一起由门12来关闭。在滚筒22的内周面上,形成有许多个脱水孔22b。进而,在滚筒22的内周面上,在圆周方向上以大致相等的间隔设有三个提升筋23。In the casing 10, the outer tank 20 is elastically supported by a plurality of dampers 21. The drum 22 is rotatably disposed in the outer tub 20. The outer groove 20 and the rear surface side of the drum 22 are inclined so as to become lower with respect to the horizontal direction. Thereby, the drum 22 rotates centering on the inclination axis inclined with respect to the horizontal direction. The inclination angle of the outer tub 20 and the drum 22 is set to about 10 to 20 degrees. The opening 20a of the front surface of the outer tub 20 and the opening 22a of the front surface of the drum 22 face the input port 11, and are closed by the door 12 together with the input port 11. On the inner peripheral surface of the drum 22, a plurality of dewatering holes 22b are formed. Further, on the inner circumferential surface of the drum 22, three lifting ribs 23 are provided at substantially equal intervals in the circumferential direction.
搅拌体24自由旋转地配置于滚筒22的后部。搅拌体24大致具有圆盘形状。在搅拌体24的表面上,形成有从中央部放射状延伸的多个叶片24a。搅拌体24与滚筒22同轴旋转。搅拌体24相当于本发明的旋转体,叶片24a相当于本发明的突状部。
The agitating body 24 is rotatably disposed at the rear of the drum 22 . The agitating body 24 has a substantially disk shape. On the surface of the agitating body 24, a plurality of blades 24a radially extending from the central portion are formed. The agitating body 24 rotates coaxially with the drum 22. The agitating body 24 corresponds to the rotating body of the present invention, and the vane 24a corresponds to the protruding portion of the present invention.
在外槽20的后方,配置有产生驱动滚筒22以及搅拌体24的转矩的驱动单元30。驱动单元30相当于本发明的驱动部。驱动单元30在洗涤工序以及漂洗工序时,使滚筒22以及搅拌体24在同一方向上以不同的旋转速度进行旋转。具体地说,驱动单元30使滚筒22以施加给滚筒22内的洗涤物的离心力小于重力的旋转速度进行旋转,并使搅拌体24以比滚筒22的旋转速度还要快的旋转速度进行旋转。另一方面,驱动单元30在脱水工序时使滚筒22以及搅拌体24以施加给滚筒22内的洗涤物的离心力远远大于重力的旋转速度一体地进行旋转。驱动单元30的详细结构随后进行说明。A drive unit 30 that generates torque for driving the drum 22 and the agitating body 24 is disposed behind the outer tub 20. The drive unit 30 corresponds to the drive unit of the present invention. In the washing step and the rinsing step, the driving unit 30 rotates the drum 22 and the stirring body 24 at different rotation speeds in the same direction. Specifically, the drive unit 30 rotates the drum 22 at a rotational speed at which the centrifugal force applied to the laundry in the drum 22 is less than the gravity, and rotates the agitating body 24 at a rotational speed faster than the rotational speed of the drum 22. On the other hand, in the spin-drying process, the drive unit 30 integrally rotates the drum 22 and the agitating body 24 with a centrifugal force that is applied to the laundry in the drum 22 much larger than the rotational speed of gravity. The detailed structure of the drive unit 30 will be described later.
在外槽20的底部形成有排水口部20b。在排水口部20b中设置有排水阀40。排水阀40与排水软管41连接。当排水阀40打开时,贮存于外槽20内的水就会通过排水软管41向机外排出。A drain port portion 20b is formed at the bottom of the outer tub 20. A drain valve 40 is provided in the drain port portion 20b. The drain valve 40 is connected to the drain hose 41. When the drain valve 40 is opened, the water stored in the outer tank 20 is discharged to the outside through the drain hose 41.
在壳体10内的前方上部配置有洗涤剂盒50。收容洗涤剂的洗涤剂容器50a从前方自由抽出地收容于洗涤剂盒50中。洗涤剂盒50通过给水软管52与配置在壳体10内的后方上部的给水阀51连接。此外,洗涤剂盒50通过注水管53与外槽20的上部连接。当给水阀51打开时,通过给水软管52、洗涤剂盒50以及注水管53将来自水龙头的自来水供给外槽20内。此时,顺着水流将收容在洗涤剂容器50a中的洗涤剂供给外槽20内。给水阀51相当于本发明的给水部。A detergent box 50 is disposed in the front upper portion of the casing 10. The detergent container 50a containing the detergent is accommodated in the detergent box 50 so as to be freely extracted from the front. The detergent box 50 is connected to the water supply valve 51 disposed at the rear upper portion in the casing 10 through the water supply hose 52. Further, the detergent box 50 is connected to the upper portion of the outer tub 20 through a water injection pipe 53. When the water supply valve 51 is opened, tap water from the faucet is supplied into the outer tank 20 through the water supply hose 52, the detergent box 50, and the water injection pipe 53. At this time, the detergent contained in the detergent container 50a is supplied into the outer tub 20 along the water flow. The water supply valve 51 corresponds to the water supply unit of the present invention.
接着,关于驱动单元30的结构进行详细说明。Next, the configuration of the drive unit 30 will be described in detail.
图2以及图3是表示驱动单元30的结构的剖视图。图2表示驱动单元30的驱动形态被切换到二轴驱动形态的状态,图3表示驱动单元30的驱动形态被切换到一轴驱动形态的状态。图4是表示驱动电机100的转子110的结构的转子110的主视图。图5是形成有齿条514的轴承单元500的后部的放大立体图。图6(a)~(c)是表示离合器机构部600的离合器体610的结构的图,其分别为离合器体610的主视图、右视图以及后视图。2 and 3 are cross-sectional views showing the configuration of the drive unit 30. 2 shows a state in which the driving form of the driving unit 30 is switched to the two-axis driving mode, and FIG. 3 shows a state in which the driving form of the driving unit 30 is switched to the one-axis driving mode. FIG. 4 is a front view showing the rotor 110 of the structure of the rotor 110 of the drive motor 100. FIG. 5 is an enlarged perspective view of the rear portion of the bearing unit 500 in which the rack 514 is formed. 6(a) to 6(c) are views showing a configuration of a clutch body 610 of the clutch mechanism portion 600, which are respectively a front view, a right side view, and a rear view of the clutch body 610.
驱动单元30包括:驱动电机100、翼轴200、滚筒轴300、行星齿轮机构400、轴承单元500以及离合器机构部600。驱动电机100产生用于驱动搅拌体24以及滚筒22的转矩。翼轴200利用驱动电机100的转矩进行旋转,并将该旋转传递给搅拌体24。行星齿轮机构400将翼轴200的旋转即驱动电机100的转子110的旋转进行减速并传递给滚筒轴300。滚筒轴300以由行星齿轮机构400减速后的旋转速度与翼轴200同轴旋转,并将该旋转传递给滚筒22。轴承单元
500自由旋转地支承翼轴200以及滚筒轴300。离合器机构部600在二轴驱动形态和一轴驱动形态之间切换驱动单元30的驱动形态,其中,所述二轴驱动形态是能使搅拌体24即翼轴200以与驱动电机100的旋转速度相等的旋转速度进行旋转,并使滚筒22即滚筒轴300以由行星齿轮机构40减速后的旋转速度进行旋转的形态,所述一轴驱动形态是能使搅拌体24以及滚筒22即翼轴200、滚筒轴300以及行星齿轮机构400以与驱动电机100相等的旋转速度一体地进行旋转的形态。The drive unit 30 includes a drive motor 100, a wing shaft 200, a drum shaft 300, a planetary gear mechanism 400, a bearing unit 500, and a clutch mechanism portion 600. The drive motor 100 generates torque for driving the agitating body 24 and the drum 22. The wing shaft 200 is rotated by the torque of the drive motor 100, and the rotation is transmitted to the agitating body 24. The planetary gear mechanism 400 decelerates the rotation of the wing shaft 200, that is, the rotation of the rotor 110 of the drive motor 100, and transmits it to the drum shaft 300. The drum shaft 300 rotates coaxially with the wing shaft 200 at a rotational speed decelerated by the planetary gear mechanism 400, and transmits the rotation to the drum 22. Bearing unit
The 500 supports the wing shaft 200 and the drum shaft 300 in a freely rotatable manner. The clutch mechanism unit 600 switches the driving form of the driving unit 30 between the two-axis driving mode in which the agitating body 24, that is, the wing shaft 200, and the rotational speed of the driving motor 100 are switched. The rotation speed is rotated at an equal speed, and the drum shaft 230, that is, the drum shaft 300, is rotated at a rotation speed decelerated by the planetary gear mechanism 40. The one-shaft drive mode is such that the agitating body 24 and the drum 22, that is, the wing shaft 200. The drum shaft 300 and the planetary gear mechanism 400 are integrally rotated at a rotation speed equal to that of the drive motor 100.
驱动电机100是外转子型DC无刷电机,包括转子110和定子120。转子110形成为有底的圆筒状,在其内周面上遍及整个圆周排列有永久磁铁111。如图4所示,在转子110的中央部形成有圆形的轴套部112。在轴套部112中形成有用于固定翼轴200的轴套孔113,并且在轴套孔113的外周上形成有环状的被卡合凹部114。被卡合凹部114的外周部遍及整个圆周具有凹凸部114a。被卡合凹部114相当于本发明的第一被卡合部。The drive motor 100 is an outer rotor type DC brushless motor including a rotor 110 and a stator 120. The rotor 110 is formed in a bottomed cylindrical shape, and permanent magnets 111 are arranged on the inner circumferential surface thereof over the entire circumference. As shown in FIG. 4, a circular boss portion 112 is formed at a central portion of the rotor 110. A boss hole 113 for fixing the wing shaft 200 is formed in the boss portion 112, and an annular engaged recess 114 is formed on the outer circumference of the boss hole 113. The outer peripheral portion of the engaged recessed portion 114 has the uneven portion 114a over the entire circumference. The engaged recess 114 corresponds to the first engaged portion of the present invention.
定子120在外周部具有线圈121。当从后述的电机驱动部给定子120的线圈121供给驱动电流时,转子110进行旋转。The stator 120 has a coil 121 at the outer peripheral portion. When a drive current is supplied to the coil 121 of the stator 120 from a motor drive unit to be described later, the rotor 110 rotates.
滚筒轴300具有中空形状,并内包翼轴200和行星齿轮机构400。滚筒轴300的中央部向外侧膨出,该膨出的部位构成行星齿轮机构400的收容部。The drum shaft 300 has a hollow shape and encloses the wing shaft 200 and the planetary gear mechanism 400. The center portion of the drum shaft 300 is bulged outward, and the bulged portion constitutes a housing portion of the planetary gear mechanism 400.
行星齿轮机构400包括:太阳齿轮410、包围太阳齿轮410的环状的内齿轮420、介于太阳齿轮410和内齿轮420之间的多组行星齿轮430以及自由旋转地保持这些行星齿轮430的行星齿轮架440。The planetary gear mechanism 400 includes a sun gear 410, an annular internal gear 420 surrounding the sun gear 410, a plurality of sets of planetary gears 430 interposed between the sun gear 410 and the internal gear 420, and a planet that rotatably holds the planetary gears 430 Carrier 440.
太阳齿轮410被固定在翼轴200上,内齿轮420被固定在滚筒轴300上。一组行星齿轮430包括相互咬合且反向进行旋转的第一齿轮和第二齿轮。行星齿轮架440包括向后方延伸的齿轮架轴441。齿轮架轴441与滚筒轴300同轴,并且内部形成为中空以供翼轴200***。The sun gear 410 is fixed to the wing shaft 200, and the internal gear 420 is fixed to the drum shaft 300. A set of planet gears 430 includes a first gear and a second gear that mesh with each other and rotate in opposite directions. The planet carrier 440 includes a carrier shaft 441 that extends rearward. The carrier shaft 441 is coaxial with the drum shaft 300, and is internally hollow to allow the wing shaft 200 to be inserted.
翼轴200的后端部从齿轮架轴441向后方突出,并被固定在转子110上的轴套孔113。The rear end portion of the wing shaft 200 protrudes rearward from the carrier shaft 441 and is fixed to the boss hole 113 on the rotor 110.
在轴承单元500中,在中央部设置有圆筒状的轴承部510。在轴承部510的内部,在前部以及后部设有滚轴511、512,在前端部设有机械密封件513。滚筒轴300的外周面由滚轴511、512支承,并在轴承部510内顺滑地旋转。另外,通过机械密封件513防止水向轴承部510和滚筒轴300之间的侵入。如图5所
示,在轴承部510的后端部,在内面上遍及整个圆周形成有齿条514。In the bearing unit 500, a cylindrical bearing portion 510 is provided at the center portion. Inside the bearing portion 510, rollers 511 and 512 are provided at the front and rear portions, and a mechanical seal 513 is provided at the front end portion. The outer peripheral surface of the drum shaft 300 is supported by the rollers 511, 512 and smoothly rotates in the bearing portion 510. In addition, intrusion of water between the bearing portion 510 and the drum shaft 300 is prevented by the mechanical seal 513. As shown in Figure 5
A rack 514 is formed on the inner surface of the rear end portion of the bearing portion 510 over the entire circumference.
在轴承单元500中,在轴承部510的周围形成有固定凸缘部520。在固定凸缘部520的下端部形成有安装凸台521。In the bearing unit 500, a fixing flange portion 520 is formed around the bearing portion 510. A mounting boss 521 is formed at a lower end portion of the fixing flange portion 520.
轴承单元500凭借固定凸缘部520,通过螺钉紧固等固定方法固定在外槽20的后表面。在外槽20内已安装有驱动单元30的状态下,翼轴200以及滚筒轴300伸入外槽20的内部。滚筒22被固定在滚筒轴300上,搅拌体24被固定在翼轴200上。The bearing unit 500 is fixed to the rear surface of the outer tub 20 by a fixing method such as screw fastening by means of the fixing flange portion 520. In a state where the drive unit 30 has been mounted in the outer tub 20, the wing shaft 200 and the drum shaft 300 project into the inside of the outer tub 20. The drum 22 is fixed to the drum shaft 300, and the agitating body 24 is fixed to the wing shaft 200.
离合器机构部600包括:离合器体610、离合器弹簧620、离合器杆630、杆支承部640、离合器驱动装置650、接合棒660、安装板670。The clutch mechanism unit 600 includes a clutch body 610, a clutch spring 620, a clutch lever 630, a lever support portion 640, a clutch drive device 650, a joint bar 660, and a mounting plate 670.
如图6(a)~(c)所示,离合器体610具有大致圆盘形状。在离合器体610的前端部,在外周面上形成有环状的齿条611。齿条611以与轴承单元500的齿条514卡合的方式形成。另外,在离合器体610的外周面上,在齿条611的后方形成有凸缘部612。进而,在离合器体610上,在后端部形成有环状的卡合凸缘部613。卡合凸缘部613具有与转子110的被卡合凹部114相同的形状,在外周部遍及整个圆周具有凹凸部613a。当卡合凸缘部613***到被卡合凹部114时,凹凸部613a、114a就彼此卡合。As shown in FIGS. 6(a) to 6(c), the clutch body 610 has a substantially disk shape. An annular rack 611 is formed on the outer peripheral surface of the front end portion of the clutch body 610. The rack 611 is formed to be engaged with the rack 514 of the bearing unit 500. Further, a flange portion 612 is formed on the outer circumferential surface of the clutch body 610 behind the rack 611. Further, in the clutch body 610, an annular engagement flange portion 613 is formed at the rear end portion. The engagement flange portion 613 has the same shape as the engaged concave portion 114 of the rotor 110, and has an uneven portion 613a over the entire circumference of the outer peripheral portion. When the engagement flange portion 613 is inserted into the engaged recessed portion 114, the uneven portions 613a, 114a are engaged with each other.
齿轮架轴441***离合器体610的轴孔614中。形成于轴孔614的内周面上的齿条614a和形成于齿轮架轴441的外周面上的齿条441a进行卡合。由此,离合器体610成为相对于齿轮架轴441,前后方向上的移动被允许并且圆周方向上的转动被限制的状态。The carrier shaft 441 is inserted into the shaft hole 614 of the clutch body 610. The rack 614a formed on the inner peripheral surface of the shaft hole 614 is engaged with the rack 441a formed on the outer peripheral surface of the carrier shaft 441. Thereby, the clutch body 610 is in a state in which the movement in the front-rear direction is permitted with respect to the carrier shaft 441 and the rotation in the circumferential direction is restricted.
在离合器体610上,在轴孔614的外侧形成有环状的收容槽615,在该收容槽615中收容有离合器弹簧620。离合器弹簧620的一端与轴承部510的后端部相接,另一端与收容槽615的底面相接。In the clutch body 610, an annular receiving groove 615 is formed outside the shaft hole 614, and a clutch spring 620 is housed in the receiving groove 615. One end of the clutch spring 620 is in contact with the rear end portion of the bearing portion 510, and the other end is in contact with the bottom surface of the receiving groove 615.
在离合器杆630的上端部形成有与离合器体610的凸缘部612的后表面接触并将凸缘部612向前方推的按压部631。A pressing portion 631 that comes into contact with the rear surface of the flange portion 612 of the clutch body 610 and pushes the flange portion 612 forward is formed at the upper end portion of the clutch lever 630.
离合器杆630具有支轴632,并且该支轴632由杆支承部640转动自由地支承。弹簧641夹在离合器杆630和杆支承部640之间。弹簧641为拉伸弹簧,离合器杆630通过弹簧641的弹力,其下端被拉向往前方移动的方向。The clutch lever 630 has a support shaft 632, and the support shaft 632 is rotatably supported by the lever support portion 640. The spring 641 is sandwiched between the clutch lever 630 and the lever support portion 640. The spring 641 is a tension spring, and the clutch lever 630 is biased toward the front by the elastic force of the spring 641.
离合器驱动装置650包括力矩电机651和利用力矩电机651的转矩绕着水平轴旋转的圆盘状的凸轮652。凸轮652的上表面与离合器杆630的下端部接触。
凸轮652的上表面包括设置在一端侧的高度较高的第一接触面652a、设置在另一端侧的高度较低的第二接触面652b、以及连接第一接触面652a和第二接触面652b之间的倾斜面652c。The clutch driving device 650 includes a torque motor 651 and a disk-shaped cam 652 that rotates around the horizontal axis using the torque of the torque motor 651. The upper surface of the cam 652 is in contact with the lower end portion of the clutch lever 630.
The upper surface of the cam 652 includes a first contact surface 652a having a higher height disposed on one end side, a second contact surface 652b having a lower height disposed on the other end side, and connecting the first contact surface 652a and the second contact surface 652b. An inclined surface 652c between.
杆支承部640以及离合器驱动装置650通过螺钉紧固等固定方法固定在安装板660上。安装板660通过螺钉固定在轴承单元500的安装凸台521上。The lever support portion 640 and the clutch drive device 650 are fixed to the mounting plate 660 by a fixing method such as screw fastening. The mounting plate 660 is fixed to the mounting boss 521 of the bearing unit 500 by screws.
在驱动单元30的驱动形态从一轴驱动形态切换到二轴驱动形态的情况下,如图2所示,凸轮652通过力矩电机651,以使第一接触面652a位于上方并且第二接触面652b位于下方的方式进行旋转。随着凸轮652进行旋转,离合器杆630的下端部被倾斜面652c以及第一接触面652a依次按压而向后方移动。离合器杆630以支轴632为中心向前方旋转,按压部631将离合器体610向前方推。离合器体610逆着离合器弹簧620的弹力向前方移动,离合器体610的齿条611和轴承单元500的齿条514卡合。In the case where the driving form of the driving unit 30 is switched from the one-axis driving mode to the two-axis driving mode, as shown in FIG. 2, the cam 652 passes through the torque motor 651 such that the first contact surface 652a is located above and the second contact surface 652b The way it is below rotates. As the cam 652 rotates, the lower end portion of the clutch lever 630 is sequentially pressed by the inclined surface 652c and the first contact surface 652a to move rearward. The clutch lever 630 is rotated forward about the support shaft 632, and the pressing portion 631 pushes the clutch body 610 forward. The clutch body 610 moves forward against the elastic force of the clutch spring 620, and the rack 611 of the clutch body 610 and the rack 514 of the bearing unit 500 are engaged.
当齿条611和齿条514卡合时,由于离合器体610相对于轴承单元500向圆周方向的转动受限,成为不可转动的状态,因此行星齿轮机构400的齿轮架轴441,即行星齿轮架440成为被固定成不能旋转的状态。在这样的状态下,当转子110旋转时,翼轴200以与转子110的旋转速度相等的旋转速度进行旋转,并且与翼轴200连结的搅拌体24也以与转子110的旋转速度相等的旋转速度进行旋转。随着翼轴200的旋转,在行星齿轮机构400中太阳齿轮410进行旋转。如上所述,由于行星齿轮架440处于被固定的状态,所以行星齿轮430的第一齿轮以及第二齿轮分别与太阳齿轮410同向以及逆向进行旋转,内齿轮420与太阳齿轮410同向进行旋转。由此,固定在内齿轮420上的滚筒轴300与翼轴200同向,并且以比翼轴200还要慢的旋转速度进行旋转,固定在滚筒轴300上的滚筒22以比搅拌体24还要慢的旋转速度与搅拌体24同向进行旋转。换言之,搅拌体24以比滚筒22还要快的旋转速度与滚筒22同向进行旋转。When the rack 611 and the rack 514 are engaged, since the rotation of the clutch body 610 with respect to the bearing unit 500 in the circumferential direction is restricted and becomes a non-rotatable state, the carrier shaft 441 of the planetary gear mechanism 400, that is, the planetary carrier 440 is fixed in a state in which it cannot be rotated. In such a state, when the rotor 110 rotates, the wing shaft 200 rotates at a rotational speed equal to the rotational speed of the rotor 110, and the agitating body 24 coupled to the wing shaft 200 also rotates at the same speed as the rotational speed of the rotor 110. The speed is rotated. As the wing shaft 200 rotates, the sun gear 410 rotates in the planetary gear mechanism 400. As described above, since the carrier 440 is in a fixed state, the first gear and the second gear of the planetary gear 430 rotate in the same direction and in the opposite direction to the sun gear 410, respectively, and the internal gear 420 rotates in the same direction as the sun gear 410. . Thereby, the drum shaft 300 fixed to the inner gear 420 is in the same direction as the wing shaft 200, and is rotated at a rotation speed slower than the wing shaft 200, and the drum 22 fixed to the drum shaft 300 is more than the agitating body 24 The slow rotation speed is rotated in the same direction as the agitating body 24. In other words, the agitating body 24 rotates in the same direction as the drum 22 at a rotational speed faster than the drum 22.
另一方面,在驱动单元30的形态从二轴驱动形态切换到一轴驱动形态的情况下,如图3所示,凸轮652通过力矩电机651,以使第二接触面652b位于上方并且第一接触面652a位于下方的方式进行旋转。随着凸轮652进行旋转,离合器杆630的下端部通过弹簧641的弹力依次沿着倾斜面652c以及第二接触面652b向前方移动。离合器杆630以支轴632为中心向后方旋转,按压部631离开离合器体610的凸缘部612。离合器体610通过离合器弹簧620的弹力向后方
移动,离合器体610的卡合凸缘部613和转子110的被卡合凹部114卡合。On the other hand, in the case where the form of the drive unit 30 is switched from the two-axis drive mode to the one-shaft drive mode, as shown in FIG. 3, the cam 652 passes through the torque motor 651 such that the second contact surface 652b is located above and first. The contact surface 652a is rotated in a manner of being located below. As the cam 652 rotates, the lower end portion of the clutch lever 630 sequentially moves forward along the inclined surface 652c and the second contact surface 652b by the elastic force of the spring 641. The clutch lever 630 rotates rearward about the support shaft 632, and the pressing portion 631 is separated from the flange portion 612 of the clutch body 610. The clutch body 610 is rearward by the elastic force of the clutch spring 620
Moving, the engagement flange portion 613 of the clutch body 610 is engaged with the engaged recessed portion 114 of the rotor 110.
当卡合凸缘部613和被卡合凹部114卡合时,离合器体610相对于转子110向圆周方向的转动受限,离合器体610成为可以与转子110一起旋转的状态。在这样的状态下,当转子110旋转时,翼轴200以及离合器体610以与转子110的旋转速度相等的旋转速度进行旋转。此时,在行星齿轮机构400中,太阳齿轮410和行星齿轮架440以与转子110相等的旋转速度进行旋转。由此,内齿轮420以与太阳齿轮410以及行星齿轮架440相等的旋转速度进行旋转,固定在内齿轮420上的滚筒轴300以与转子110相等的旋转速度进行旋转。即,在驱动单元30中,翼轴200、行星齿轮机构400以及滚筒轴300成为一体进行旋转。由此,滚筒22和搅拌体24一体地进行旋转。When the engagement flange portion 613 and the engaged recess portion 114 are engaged, the rotation of the clutch body 610 in the circumferential direction with respect to the rotor 110 is restricted, and the clutch body 610 is in a state of being rotatable together with the rotor 110. In such a state, when the rotor 110 rotates, the wing shaft 200 and the clutch body 610 rotate at a rotational speed equal to the rotational speed of the rotor 110. At this time, in the planetary gear mechanism 400, the sun gear 410 and the carrier 440 rotate at a rotation speed equal to that of the rotor 110. Thereby, the internal gear 420 rotates at a rotation speed equal to that of the sun gear 410 and the carrier 440, and the drum shaft 300 fixed to the internal gear 420 rotates at a rotation speed equal to that of the rotor 110. That is, in the drive unit 30, the wing shaft 200, the planetary gear mechanism 400, and the drum shaft 300 are integrally rotated. Thereby, the drum 22 and the agitating body 24 rotate integrally.
图7是表示滚筒式洗衣机1的结构的框图。FIG. 7 is a block diagram showing the configuration of the drum type washing machine 1.
滚筒式洗衣机1除了上述的结构之外,还具备:控制部701、存储部702、操作部703、水位传感器704、电机驱动部705、给水驱动部706、排水驱动部707、离合器驱动部708以及门锁装置709。In addition to the above configuration, the drum type washing machine 1 further includes a control unit 701, a storage unit 702, an operation unit 703, a water level sensor 704, a motor drive unit 705, a water supply drive unit 706, a drain drive unit 707, a clutch drive unit 708, and Door lock device 709.
操作部703包括:电源按钮703a、开始按钮703b、模式选择按钮703c。电源按钮703a是用于接通以及关断滚筒式洗衣机1的电源的按钮。开始按钮703b是用于使运转开始的按钮。模式选择按钮703c是用于从洗涤运转的多个运转模式中选择任意的运转模式的按钮。操作部703将与用户所操作的按钮相应的输入信号输出给控制部701。The operation unit 703 includes a power button 703a, a start button 703b, and a mode selection button 703c. The power button 703a is a button for turning on and off the power of the drum type washing machine 1. The start button 703b is a button for starting the operation. The mode selection button 703c is a button for selecting an arbitrary operation mode from among a plurality of operation modes of the washing operation. The operation unit 703 outputs an input signal corresponding to the button operated by the user to the control unit 701.
水位传感器704检测外槽20内的水位,将与检测到的水位相应的水位检测信号输出给控制部701。水位传感器704相当于本发明的水位检测部。The water level sensor 704 detects the water level in the outer tank 20, and outputs a water level detection signal corresponding to the detected water level to the control unit 701. The water level sensor 704 corresponds to the water level detecting unit of the present invention.
电机驱动部705根据来自控制部701的控制信号,将驱动电流提供给驱动电机100。给水驱动部706根据来自控制部701的控制信号,将驱动电流提供给给水阀51。排水驱动部707根据来自控制部701的控制信号,将驱动电流提供给排水阀40。The motor drive unit 705 supplies a drive current to the drive motor 100 in accordance with a control signal from the control unit 701. The water supply driving unit 706 supplies a drive current to the water supply valve 51 based on a control signal from the control unit 701. The drain drive unit 707 supplies a drive current to the drain valve 40 based on a control signal from the control unit 701.
离合器驱动装置650包括第一检测传感器653以及第二检测传感器654。第一检测传感器653以及第二检测传感器654相当于本发明的形态检测部。第一检测传感器653检测出驱动单元30的驱动形态切换到二轴驱动形态,并将检测信号输出给控制部701。第二检测传感器654检测出驱动单元30的驱动形态切换到一轴驱动形态,并将检测信号输出给控制部701。离合器驱动部708根据来
自第一检测传感器653以及第二检测传感器654的检测信号,并根据从控制部701输出的控制信号,将驱动电流提供给力矩电机651。The clutch drive 650 includes a first detection sensor 653 and a second detection sensor 654. The first detecting sensor 653 and the second detecting sensor 654 correspond to the form detecting unit of the present invention. The first detecting sensor 653 detects that the driving form of the driving unit 30 is switched to the two-axis driving mode, and outputs a detection signal to the control unit 701. The second detecting sensor 654 detects that the driving form of the driving unit 30 is switched to the one-axis driving mode, and outputs a detection signal to the control unit 701. The clutch drive unit 708 is based on
The drive current is supplied from the first detection sensor 653 and the second detection sensor 654 to the torque motor 651 based on the control signal output from the control unit 701.
门锁装置709根据来自控制部701的控制信号进行门12的上锁以及解锁。The door lock device 709 performs locking and unlocking of the door 12 in accordance with a control signal from the control unit 701.
存储部702包括EEPROM、RAM等。在存储部702中存储有用于执行各种洗涤运转模式的洗涤运转的程序。此外,在存储部702中存储有用于这些程序的执行的各种参数、各种控制标记。The storage unit 702 includes an EEPROM, a RAM, and the like. A program for executing a washing operation of various washing operation modes is stored in the storage unit 702. Further, various parameters and various control flags for execution of these programs are stored in the storage unit 702.
控制部701根据来自操作部703、水位传感器704等的各个信号,根据存储于存储部702的程序,控制电机驱动部705、给水驱动部706、排水驱动部707、离合器驱动部708以及门锁装置709等。The control unit 701 controls the motor drive unit 705, the water supply drive unit 706, the drain drive unit 707, the clutch drive unit 708, and the door lock device based on the programs stored in the storage unit 702 based on the respective signals from the operation unit 703, the water level sensor 704, and the like. 709 and so on.
滚筒式洗衣机1根据通过模式选择按钮703c进行的用户的选择操作,进行各种运转模式的洗涤运转。在洗涤运转中,按顺序执行洗涤工序、中间脱水工序、漂洗工序以及最终脱水工序。此外,根据运转模式,有时候会进行两次以上中间脱水工序和漂洗工序。The drum type washing machine 1 performs a washing operation in various operation modes in accordance with a user's selection operation by the mode selection button 703c. In the washing operation, the washing step, the intermediate dehydration step, the rinsing step, and the final dehydration step are sequentially performed. Further, depending on the operation mode, the intermediate dehydration process and the rinsing process are sometimes performed twice or more.
图8是表示洗涤运转中的通过离合器机构部600进行的驱动单元30的驱动形态的切换时机和驱动电机100的驱动时机的图。FIG. 8 is a view showing a switching timing of the driving form of the driving unit 30 and a driving timing of the driving motor 100 by the clutch mechanism unit 600 in the washing operation.
驱动单元30的驱动形态在洗涤运转开始前,根据上次洗涤运转中的最终脱水工序之前的驱动形态的切换,被切换到一轴驱动形态。洗涤运转开始后,驱动形态到给水工序结束为止一直维持在一轴驱动形态。驱动电机100从给水中途开始工作,滚筒22以及搅拌体24一体地进行旋转。此时的滚筒22以及搅拌体24的旋转速度设为作用于滚筒22内的洗涤物的离心力比重力变小的旋转速度。驱动电机100交替进行右旋转以及左旋转,滚筒22以及搅拌体24交替进行右旋转以及左旋转。滚筒22内的洗涤物被提升筋23搅拌,与蓄于滚筒22内的水接触。由于洗涤物被浸湿,因此滚筒22内的洗涤物体积减小,并且洗涤物的摩擦减小。The drive mode of the drive unit 30 is switched to the one-axis drive mode in accordance with the switching of the drive mode before the final spin-drying process in the previous washing operation before the start of the washing operation. After the start of the washing operation, the driving mode is maintained in the one-axis driving mode until the end of the water supply process. The drive motor 100 starts to operate from the water supply, and the drum 22 and the agitating body 24 integrally rotate. The rotational speed of the drum 22 and the agitating body 24 at this time is a rotational speed at which the centrifugal force acting on the laundry in the drum 22 is smaller than the gravity. The drive motor 100 alternately performs right rotation and left rotation, and the drum 22 and the agitating body 24 alternately perform right rotation and left rotation. The laundry in the drum 22 is stirred by the lifting ribs 23 to come into contact with the water stored in the drum 22. Since the laundry is wetted, the volume of the laundry within the drum 22 is reduced, and the friction of the laundry is reduced.
给水工序结束后,驱动形态从一轴驱动形态切换到二轴驱动形态。驱动电机100在切换所需时间之后停止工作。切换结束后,开始洗涤工序,并再次使驱动电机100工作。滚筒22以及搅拌体24各自向同一方向进行旋转。此时,滚筒22以与一轴驱动形态时相同的旋转速度,搅拌体24以比滚筒22快的旋转速度左右交替地进行旋转。滚筒22内的洗涤物通过被提升筋23举起落下,被摔到滚筒22的内周面上。除此之外,在滚筒22的后部,洗涤物与旋转的搅拌
体24的叶片24a接触,洗涤物被叶片24a揉搓,或被叶片24a搅拌。由此,洗涤物被洗涤。施加给洗涤物的机械力比只通过提升筋23进行的摔打洗涤,此外,洗涤物的滚筒22内的活动变得活跃,所以能期待清洗性能的提高。After the water supply process is completed, the drive mode is switched from the one-axis drive mode to the two-axis drive mode. The drive motor 100 stops operating after the time required for switching. After the switching is completed, the washing process is started, and the drive motor 100 is operated again. The drum 22 and the agitating body 24 are each rotated in the same direction. At this time, the drum 22 is alternately rotated about the rotation speed of the drum 22 at the same rotation speed as that in the one-shaft driving mode. The laundry in the drum 22 is lifted up by the lifting ribs 23 and falls onto the inner circumferential surface of the drum 22. In addition to this, at the rear of the drum 22, the washing and the stirring of the rotation
The blade 24a of the body 24 is in contact with the laundry, and the laundry is agitated by the blade 24a or agitated by the blade 24a. Thereby, the laundry is washed. The mechanical force applied to the laundry is washed more than by the ribs 23, and the movement in the drum 22 of the laundry becomes active, so that the cleaning performance can be expected to be improved.
当开始二轴驱动形态下的滚筒22以及搅拌体24的旋转时,由于减小了洗涤物的体积以及摩擦系数,因此当搅拌体24与洗涤物接触时,不会对搅拌体24过度施加负荷。因此,防止了驱动电机100的闭锁。When the rotation of the drum 22 and the agitating body 24 in the two-axis driving mode is started, since the volume of the laundry and the friction coefficient are reduced, when the agitating body 24 comes into contact with the laundry, the load on the agitating body 24 is not excessively applied. . Therefore, the locking of the drive motor 100 is prevented.
当洗涤工序结束时,驱动电机100停止工作。驱动形态继续维持二轴驱动形态,就此进行排水工序。当排水工序结束时,驱动形态从二轴驱动形态切换到一轴驱动形态。当切换结束时转换至中间脱水工序。此外,也可以在排水的工序之前进行该从二轴驱动形态向一轴驱动形态的切换。When the washing process ends, the drive motor 100 stops operating. The driving mode continues to maintain the two-axis driving mode, and the drainage process is performed. When the drainage process is completed, the drive mode is switched from the two-axis drive mode to the one-shaft drive mode. When the switching is completed, the process shifts to the intermediate dehydration process. Further, the switching from the two-axis driving mode to the one-axis driving mode may be performed before the draining process.
在中间脱水工序中,当驱动电机100工作时,滚筒22以及搅拌体24以作用于滚筒22内的洗涤物的离心力远远比重力大的旋转速度一体地进行旋转。由于离心力的作用,洗涤物被按压到滚筒22的内周面上被脱水。In the intermediate spin-drying process, when the drive motor 100 is operated, the drum 22 and the agitating body 24 rotate integrally with the centrifugal force of the laundry acting in the drum 22 much more than the gravity. Due to the centrifugal force, the laundry is pressed onto the inner peripheral surface of the drum 22 to be dehydrated.
当中间脱水工序结束时,接着进行漂洗工序。在漂洗工序中的给水工序之前,驱动形态从一轴驱动形态切换到二轴驱动形态。结束脱水暂时停止的驱动电机100在切换结束后,在给水开始的同时再次工作。滚筒22以及搅拌体24在给水工序以及漂洗工序中,与洗涤工序时同样地各自进行右旋转以及左旋转。When the intermediate dehydration process is completed, the rinsing process is followed. Before the water supply step in the rinsing step, the driving form is switched from the one-axis driving mode to the two-axis driving mode. The drive motor 100 that has temporarily stopped the dehydration is operated again after the start of the switching, while the water supply is started. In the water supply process and the rinsing process, the drum 22 and the agitating body 24 perform right rotation and left rotation in the same manner as in the washing process.
与洗涤工序相同,滚筒22内的洗涤物通过被提升筋23搅拌而摔到滚筒22的内周面上,并且洗涤物或被搅拌体24的叶片24a揉搓,或被叶片24a搅拌。由此漂洗洗涤物。Like the washing process, the laundry in the drum 22 is agitated by the lifting rib 23 and falls onto the inner peripheral surface of the drum 22, and the laundry or the blade 24a of the agitated body 24 is raked or agitated by the blade 24a. The laundry is thus rinsed.
由于施加给洗涤物的机械力增大,此外,洗涤物在滚筒22内的运动活跃,因此能期待漂洗性能的提高。特别是,在漂洗工序中,由于洗涤物虽然通过中间脱水工序被脱水,但是仍处于湿润状态,因此驱动电机100难以发生锁闭。因此,在漂洗工序中,不事先进行基于一轴驱动形态的滚筒22以及搅拌体24的旋转,而是从给水工序开始,以二轴驱动形态使滚筒22以及搅拌体24旋转。因此,能期待漂洗性能进一步提高。Since the mechanical force applied to the laundry is increased, and the movement of the laundry in the drum 22 is active, an improvement in the rinsing performance can be expected. In particular, in the rinsing step, since the laundry is dehydrated by the intermediate dehydration step, it is still in a wet state, so that the drive motor 100 is less likely to be locked. Therefore, in the rinsing step, the drum 22 and the agitating body 24 are rotated in the two-axis driving mode from the water supply step without performing the rotation of the drum 22 and the agitating body 24 in the one-axis driving mode. Therefore, it is expected that the rinsing performance is further improved.
当漂洗工序结束时,驱动电机100停止工作。驱动形态继续维持二轴驱动形态样,就此进行排水工序。当排水工序结束时,驱动形态从二轴驱动形态切换到一轴驱动形态。当切换结束时转换至最终脱水工序。此外,也可以在排水工序之前进行该从二轴驱动形态向一轴驱动形态的切换。
When the rinsing process ends, the drive motor 100 stops operating. The driving pattern continues to maintain the two-axis driving pattern, and the drainage process is performed. When the drainage process is completed, the drive mode is switched from the two-axis drive mode to the one-shaft drive mode. Switch to the final dewatering process when the switch is over. Further, the switching from the two-axis driving mode to the one-axis driving mode may be performed before the draining process.
在最终脱水工序中,与中间脱水工序相同,滚筒22以及搅拌体24一体地高速旋转,从而洗涤物被脱水。此外,在最终脱水工序中,脱水时间比中间脱水工序长,滚筒22以及搅拌体24的旋转速度更快。In the final dehydration step, similarly to the intermediate dehydration step, the drum 22 and the agitating body 24 are integrally rotated at a high speed, whereby the laundry is dehydrated. Further, in the final dehydration step, the dehydration time is longer than the intermediate dehydration step, and the rotation speed of the drum 22 and the agitating body 24 is faster.
当最终脱水工序结束时,洗涤运转结束。When the final dewatering process is completed, the washing operation is completed.
接下来,关于洗涤工序以及漂洗工序中通过控制部701进行的控制处理,参照图9以及图10进行详细说明。Next, the control process by the control unit 701 in the washing process and the rinsing process will be described in detail with reference to FIGS. 9 and 10 .
图9是表示洗涤工序中的控制处理的流程图。FIG. 9 is a flowchart showing a control process in the washing process.
当洗涤工序开始时,控制部701根据第二检测传感器654的检测结果判断驱动单元30的驱动形态是否为一轴驱动形态(S101)。由于通常是在上次洗涤运转中的最终脱水工序时进行向一轴驱动形态的切换,因此在这次洗涤运转开始时会维持一轴驱动形态。因此,控制部701在判断出驱动形态为一轴驱动形态时(S101:是),会打开给水阀51(S102)。由此,开始向外槽20内给水,向外槽20内提供含有洗涤剂的水。When the washing process is started, the control unit 701 determines whether or not the driving form of the driving unit 30 is the one-axis driving mode based on the detection result of the second detecting sensor 654 (S101). Since the switching to the one-axis driving mode is normally performed in the final dehydration step in the last washing operation, the one-axis driving mode is maintained at the start of this washing operation. Therefore, when the control unit 701 determines that the driving mode is the one-axis driving mode (S101: YES), the water supply valve 51 is opened (S102). Thereby, the water supply to the outer tank 20 is started, and the detergent-containing water is supplied to the outer tank 20.
另一方面,在驱动形态由于发生某些问题而未被切换到一轴驱动形态的情况下(S101:否),控制部701使离合器机构部600的力矩电机651工作,将驱动形态切换到一轴驱动形态(S103)。当根据第二检测传感器654的检测结果确认切换到一轴驱动形态时,控制部701打开给水阀51(S102)。On the other hand, when the drive mode is not switched to the one-axis drive mode due to some problem (S101: NO), the control unit 701 operates the torque motor 651 of the clutch mechanism unit 600 to switch the drive mode to one. Shaft drive mode (S103). When it is confirmed that the switching to the one-axis driving mode is made based on the detection result of the second detecting sensor 654, the control unit 701 opens the water supply valve 51 (S102).
接下来,控制部701根据水位传感器704的检测结果判断外槽20内的水位是否到达了搅拌水位(S104)。搅拌水位是作为滚筒22以及搅拌体24开始旋转的水位的预定水位,并且是滚筒22的圆周面没入水中的水位,设为比后述的洗涤水位低。Next, the control unit 701 determines whether or not the water level in the outer tub 20 has reached the stirring water level based on the detection result of the water level sensor 704 (S104). The agitating water level is a predetermined water level which is a water level at which the drum 22 and the agitating body 24 start to rotate, and is a water level in which the circumferential surface of the drum 22 is not in the water, and is set to be lower than a washing water level to be described later.
当外槽20内的水位到达搅拌水位时(S104:是),控制部701使驱动电机100工作(S105)。滚筒22以及搅拌体24一体地低速旋转,滚筒22内的洗涤物与存蓄的水接触并被搅拌,被水浸湿。When the water level in the outer tank 20 reaches the agitation water level (S104: YES), the control unit 701 causes the drive motor 100 to operate (S105). The drum 22 and the agitating body 24 integrally rotate at a low speed, and the laundry in the drum 22 comes into contact with the stored water and is stirred, soaked by water.
控制部701在经过预定的给水时间时(S106:是),使驱动电机100停止并且使给水阀51关闭(S107)。控制部701根据水位传感器704的检测结果判断外槽20内的水位是否到达了预定的洗涤水位(S108)。在洗涤物的容量多,大量的水被洗涤物吸收的情况下,在一次给水时间内,难以到达洗涤水位。只要外槽20内的水位未到达洗涤水位(S108:否),控制部701就再次使给水阀51打开并且(S109)使驱动电机100工作(S105)。如此,反复进行步骤S105至
S109的处理,直至外槽20内的水位到达洗涤水位。当外槽20内的水位到达洗涤水位时,滚筒22内的洗涤物被充分全面地浸湿。When the predetermined water supply time has elapsed (S106: YES), the control unit 701 stops the drive motor 100 and closes the water supply valve 51 (S107). The control unit 701 determines whether or not the water level in the outer tub 20 has reached the predetermined washing water level based on the detection result of the water level sensor 704 (S108). In the case where the volume of the laundry is large and a large amount of water is absorbed by the laundry, it is difficult to reach the washing water level in one water supply time. As long as the water level in the outer tank 20 does not reach the washing water level (S108: NO), the control unit 701 opens the water supply valve 51 again (S109) to operate the drive motor 100 (S105). Thus, step S105 is repeated to
The treatment of S109 until the water level in the outer tank 20 reaches the washing water level. When the water level in the outer tank 20 reaches the washing water level, the laundry in the drum 22 is sufficiently fully wetted.
当外槽20内的水位到达洗涤水位时(S108:是),控制部701使力矩电机651工作,将驱动单元30的驱动形态切换到二轴驱动形态(S110)。当根据第一检测传感器653的检测结果确认切换到二轴驱动形态时,控制部701使驱动电机100工作(S111)。分别使滚筒22以及搅拌体24以滚筒22低速、搅拌体24比滚筒22高速的旋转速度各自旋转,滚筒22内的洗涤物通过高机械力和洗涤剂的作用被洗涤。When the water level in the outer tank 20 reaches the washing water level (S108: YES), the control unit 701 operates the torque motor 651 to switch the driving form of the driving unit 30 to the two-axis driving mode (S110). When it is confirmed that the mode is switched to the two-axis driving mode based on the detection result of the first detecting sensor 653, the control unit 701 causes the driving motor 100 to operate (S111). The drum 22 and the agitating body 24 are respectively rotated at a low speed of the drum 22, and the agitating body 24 is rotated at a higher speed than the drum 22, and the laundry in the drum 22 is washed by the action of high mechanical force and detergent.
当经过预定的洗涤时间时(S112:是),控制部701使驱动电机100停止(S113)。然后,控制部701使排水阀40打开(S114)。外槽20内的水被排向洗衣机外。When the predetermined washing time has elapsed (S112: YES), the control unit 701 stops the drive motor 100 (S113). Then, the control unit 701 opens the drain valve 40 (S114). The water in the outer tank 20 is discharged to the outside of the washing machine.
控制部701判断排水是否已结束(S115)。控制部701在外槽20内的水位例如到达可通过水位传感器704进行检测的下限水位后又经过了规定的时间时,判断排水结束。控制部701在判断出排水结束时(S115:是),使排水阀40关闭(S116)。然后,控制部701使力矩电机651工作,将驱动单元30的驱动形态切换到一轴驱动形态(S117)。如此,洗涤工序的控制处理结束。The control unit 701 determines whether or not the drainage has been completed (S115). The control unit 701 determines that the draining is completed when the water level in the outer tank 20 reaches a lower limit water level detectable by the water level sensor 704, for example, and then a predetermined time has elapsed. When the control unit 701 determines that the draining is completed (S115: YES), the drain valve 40 is closed (S116). Then, the control unit 701 operates the torque motor 651 to switch the drive mode of the drive unit 30 to the one-axis drive mode (S117). In this way, the control process of the washing process is completed.
图10是表示漂洗工序中控制处理的流程图。Fig. 10 is a flowchart showing a control process in the rinsing step.
当漂洗工序开始时,控制部701使力矩电机651工作,将驱动单元30的驱动形态切换到二轴驱动形态(S201)。当根据第一检测传感器653的检测结果,确认切换到二轴驱动形态时,控制部701打开给水阀51并且使驱动电机100工作(S202)。对外槽20内进行给水,并且滚筒22以及搅拌体24分别以滚筒22低速、搅拌体24比滚筒22高速的旋转速度各自旋转,滚筒22内的洗涤物通过高机械力被漂洗。When the rinsing process is started, the control unit 701 operates the torque motor 651 to switch the drive mode of the drive unit 30 to the two-axis drive mode (S201). When it is confirmed that the switching to the two-axis driving mode is made based on the detection result of the first detecting sensor 653, the control unit 701 opens the water supply valve 51 and operates the driving motor 100 (S202). The water supply is performed in the outer tank 20, and the drum 22 and the agitating body 24 are respectively rotated at a low speed of the drum 22, and the agitating body 24 is rotated at a higher speed than the drum 22, and the laundry in the drum 22 is rinsed by a high mechanical force.
控制部701在经过预定的给水时间时(S203:是),使驱动电机100停止并且使给水阀51关闭(S204)。控制部701根据水位传感器704的检测结果,判断外槽20内的水位是否到达了预定的水位(S205)。只要外槽20内的水位未到达洗涤水位(S108:否),控制部701就再次使给水阀51打开并且使驱动电机100工作(S202)。如此,反复进行步骤S202或S205的处理直至外槽20内的水位到达漂洗水位。When the predetermined water supply time has elapsed (S203: YES), the control unit 701 stops the drive motor 100 and closes the water supply valve 51 (S204). The control unit 701 determines whether or not the water level in the outer tub 20 has reached a predetermined water level based on the detection result of the water level sensor 704 (S205). As long as the water level in the outer tank 20 does not reach the washing water level (S108: NO), the control unit 701 opens the water supply valve 51 again and operates the drive motor 100 (S202). In this manner, the processing of step S202 or S205 is repeated until the water level in the outer tank 20 reaches the rinsing water level.
当外槽20内的水位到达漂洗水位时(S205:是),控制部701使驱动电机
100工作(S206)。在停止给水的状态下,继续漂洗洗涤物。When the water level in the outer tank 20 reaches the rinsing water level (S205: YES), the control unit 701 causes the driving motor
100 work (S206). The washing is continued while the feed water is stopped.
当经过预定的洗涤时间时(S207:是),控制部701使驱动电机100停止(S208)。然后,控制部701使排水阀40打开(S209)。外槽20内的水被排向洗衣机外。When the predetermined washing time has elapsed (S207: YES), the control unit 701 stops the drive motor 100 (S208). Then, the control unit 701 opens the drain valve 40 (S209). The water in the outer tank 20 is discharged to the outside of the washing machine.
当排水结束时(S210:是),控制部701使排水阀40关闭(S211)。然后,控制部701使力矩电机651工作,将驱动单元30的驱动形态切换到一轴驱动形态(S212)。如此,漂洗工序的控制处理结束。When the draining is completed (S210: YES), the control unit 701 closes the drain valve 40 (S211). Then, the control unit 701 operates the torque motor 651 to switch the drive mode of the drive unit 30 to the one-axis drive mode (S212). In this way, the control process of the rinsing process ends.
<实施方式的效果><Effects of Embodiments>
以上,如已说明的,根据本实施方式,在洗涤工序以及漂洗工序中,滚筒22和搅拌体24以搅拌体24的旋转速度比滚筒22的旋转速度快的方式进行旋转。由此,滚筒22内的洗涤物不仅通过由提升筋23进行的搅拌被摔到滚筒22的内周面上,还通过旋转的搅拌体24的叶片24a被揉搓。因此,与洗涤物仅由提升筋23进行搅拌的结构相比,能提高清洗性能以及漂洗性能。As described above, according to the present embodiment, in the washing step and the rinsing step, the drum 22 and the agitating body 24 are rotated such that the rotational speed of the agitating body 24 is faster than the rotational speed of the drum 22 . Thereby, the laundry in the drum 22 is not only dropped onto the inner circumferential surface of the drum 22 by the agitation by the lifting ribs 23, but also by the blades 24a of the rotating agitating body 24. Therefore, the cleaning performance and the rinsing performance can be improved as compared with the structure in which the laundry is only stirred by the lifting ribs 23.
进而,根据本实施方式,在滚筒22内蓄有水的状态下按照一轴驱动形态使滚筒22以及搅拌体24一体地旋转,将洗涤物用滚筒22内的水浸湿,使洗涤物的体积以及摩擦系数减小之后,按照二轴驱动形态使滚筒22以及搅拌体24各自旋转。由此,能防止对搅拌体24施加洗涤物所产生的过度的负荷,能防止驱动电机100闭锁。此外,能防止由于与搅拌体24的强摩擦而导致洗涤物损伤。Further, according to the present embodiment, the drum 22 and the agitating body 24 are integrally rotated in a one-axis driving mode while the water is stored in the drum 22, and the water in the washing drum 22 is wetted to make the volume of the laundry. After the friction coefficient is reduced, the drum 22 and the agitating body 24 are each rotated in a two-axis driving mode. Thereby, an excessive load generated by applying the laundry to the agitating body 24 can be prevented, and the drive motor 100 can be prevented from being locked. Further, it is possible to prevent damage to the laundry due to strong friction with the agitating body 24.
进而,根据本实施方式,在进行基于蓄有水的状态下的一轴驱动形态的滚筒22以及搅拌体24的旋转之前,检测是否结束了向一轴驱动形态的切换,只要未结束切换,就进行向一轴驱动形态的切换。由此,能防止误进行基于二轴驱动形态的滚筒22以及搅拌体24的旋转,能进一步防止驱动电机100闭锁。Further, according to the present embodiment, before the rotation of the drum 22 and the agitating body 24 in the one-axis driving mode in the state in which the water is stored, it is detected whether or not the switching to the one-axis driving mode is completed, and if the switching is not completed, Switching to the one-axis drive mode is performed. Thereby, it is possible to prevent the rotation of the drum 22 and the agitating body 24 based on the two-axis driving mode from being erroneously performed, and it is possible to further prevent the driving motor 100 from being blocked.
进而,根据本实施方式,由于进行基于一轴驱动形态的滚筒22以及搅拌体24的旋转直至外槽20内的水位到达洗涤水位为止,因此能在滚筒22内的洗涤物被充分浸湿的状态下,进行基于二轴驱动形态的滚筒22以及搅拌体24的旋转,能进一步防止驱动电机100闭锁。Further, according to the present embodiment, since the rotation of the drum 22 and the agitating body 24 in the one-axis driving mode is performed until the water level in the outer tub 20 reaches the washing water level, the laundry in the drum 22 can be sufficiently wetted. Then, the rotation of the drum 22 and the agitating body 24 based on the two-axis driving mode is performed, and the drive motor 100 can be further prevented from being locked.
进而,根据本实施方式,由于在外槽20内的水位到达搅拌水,并且水没过滚筒22之后,进行基于临时驱动形态的滚筒22以及搅拌体24的旋转,因此能防止在洗涤物无法接触外槽20内存蓄的水的状态下进行滚筒22以及搅拌体24的旋转,能防止用电浪费。
Further, according to the present embodiment, since the water level in the outer tank 20 reaches the agitated water and the water does not pass through the drum 22, the rotation of the drum 22 and the agitating body 24 based on the temporary driving mode is performed, so that the laundry cannot be prevented from contacting the outer tank. The rotation of the drum 22 and the agitating body 24 is performed in the state of 20 stored water, and waste of electricity can be prevented.
进而,根据本实施方式,由于在电机100由于洗涤物已经处于浸湿状态而难以发生闭锁的漂洗工序中,不进行基于一轴驱动形态的滚筒22以及搅拌体24的旋转,而是从给水工序开始按照二轴驱动形态使滚筒22以及搅拌体24旋转,因此能期待漂洗性能的进一步提高。Further, according to the present embodiment, in the rinsing step in which the motor 100 is in a wet state due to the fact that the laundry is already in a wet state, the rotation of the drum 22 and the agitating body 24 based on the one-axis driving mode is not performed, but the water supply process is performed. Since the drum 22 and the agitating body 24 are rotated in accordance with the two-axis driving mode, further improvement in the rinsing performance can be expected.
<变更例><Modification>
以上,虽然对本发明的实施方式进行了说明,但是本发明不受上述实施方式等的任何限制,此外,本发明的实施方式还可以进行上述以外的各种变更。The embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments and the like, and various modifications other than the above may be made in the embodiments of the present invention.
例如,在上述实施方式中,也可以采用如下结构:注水管53的注水口直接伸入滚筒22内,朝向滚筒22内的洗涤物,从注水口呈花洒喷水状供给水。在这种情况下,由于即使滚筒22不被外槽20内的水没过,也能浸湿洗涤物,因此在如图11所示的控制处理中,删除检测搅拌水位的步骤S104的处理,像如图11所示的控制处理那样,当给水阀51被打开时,驱动电机100立刻工作。For example, in the above-described embodiment, the water injection port of the water injection pipe 53 may directly protrude into the drum 22, and the laundry may be sprayed into the water from the water injection port toward the laundry in the drum 22. In this case, even if the drum 22 is not wetted by the water in the outer tub 20, the laundry can be wetted. Therefore, in the control processing shown in Fig. 11, the processing of the step S104 of detecting the stirring water level is deleted, like As in the control process shown in Fig. 11, when the water supply valve 51 is opened, the drive motor 100 operates immediately.
进而,在上述实施方式中,在外槽20内的水位到达洗涤水位后,开始基于二轴驱动形态的滚筒22以及搅拌体24的旋转。然而,并不局限于此,也可以采用在经过第一次给水时间后开始基于二轴驱动形态的滚筒22以及搅拌体24的旋转的结构。Further, in the above embodiment, after the water level in the outer tank 20 reaches the washing water level, the rotation of the drum 22 and the agitating body 24 based on the two-axis driving mode is started. However, the configuration is not limited thereto, and the rotation of the drum 22 and the agitating body 24 based on the two-axis driving mode may be started after the first water supply time has elapsed.
进而,在上述实施方式中,在经过了洗涤时间以及漂洗时间后,停止驱动电机100。然而,也可以采用在排水工序之后停止驱动电机100的结构。Further, in the above embodiment, after the washing time and the rinsing time have elapsed, the drive motor 100 is stopped. However, it is also possible to adopt a configuration in which the driving of the motor 100 is stopped after the draining process.
进而,上在述实施方式中,在漂洗工序中,与给水工序同时开始基于二轴驱动形态的滚筒22以及搅拌体24的旋转。然而,还可以采用如下结构:从给水工序的中途,或者在外槽20内的水位到达漂洗水位并转换到漂洗工序之后,开始基于二轴驱动形态的滚筒22以及搅拌体24的旋转。Further, in the above-described embodiment, in the rinsing step, the rotation of the drum 22 and the agitating body 24 based on the two-axis driving mode is started simultaneously with the water supply step. However, it is also possible to adopt a configuration in which the rotation of the drum 22 and the agitating body 24 based on the two-axis driving mode is started from the middle of the water supply step or after the water level in the outer tank 20 reaches the rinsing water level and is switched to the rinsing step.
进而,在上述实施方式中,滚筒22以相对于水平方向倾斜的倾斜轴为中心进行旋转。然而,滚筒式洗衣机1也可以采用滚筒22以水平轴为中心进行旋转的结构。Further, in the above embodiment, the drum 22 is rotated about the tilt axis that is inclined with respect to the horizontal direction. However, the drum type washing machine 1 may be configured to rotate the drum 22 around the horizontal axis.
进而,虽然上述实施方式的滚筒式洗衣机1不具有烘干功能,但是本发明也能应用在具有烘干功能的滚筒式洗衣机即滚筒式洗涤烘干机中。Further, although the drum type washing machine 1 of the above embodiment does not have a drying function, the present invention can also be applied to a drum type washing and drying machine which is a drum type washing machine having a drying function.
另外,本发明的实施方式科在权利要求书所示的技术思想的范围内适当进行各种变更。
Further, the embodiments of the present invention are variously modified as appropriate within the scope of the technical idea described in the claims.
附图标记说明Description of the reference numerals
10:壳体;20:外槽;22:滚筒;24:搅拌体(旋转体);24a:叶片(突状部);30:驱动单元(驱动部);51:给水阀(给水部);600:离合器机构部;653:第一检测传感器(形态检测部);654:第二检测传感器(形态检测部);701:控制部;704:水位传感器(水位检测部)。
10: housing; 20: outer groove; 22: roller; 24: agitating body (rotating body); 24a: blade (projection); 30: drive unit (drive unit); 51: water supply valve (water supply); 600: clutch mechanism unit; 653: first detecting sensor (morphological detecting unit); 654: second detecting sensor (morphological detecting unit); 701: control unit; 704: water level sensor (water level detecting unit).
Claims (5)
- 一种滚筒式洗衣机,进行包括洗涤工序、漂洗工序以及脱水工序的洗涤运转,其特征在于,具备:A drum type washing machine that performs a washing operation including a washing step, a rinsing step, and a dehydrating step, and is characterized by comprising:外槽,配置于壳体内;The outer slot is disposed in the housing;给水部,供给水到所述外槽内;Supplying water to the outer tank;滚筒,配置于所述外槽内,并能以水平轴或相对于水平方向倾斜的倾斜轴为中心进行旋转;a drum disposed in the outer groove and rotatable about a horizontal axis or an inclined axis inclined with respect to a horizontal direction;旋转体,配置于所述滚筒的后部,并且在表面具有与洗涤物接触的突状部;a rotating body disposed at a rear portion of the drum and having a protrusion on the surface in contact with the laundry;驱动部,能以二轴驱动形态和一轴驱动形态使所述滚筒以及所述旋转体旋转,所述二轴驱动形态是以使所述旋转体的旋转速度变为比所述滚筒的旋转速度快的方式使所述滚筒和所述旋转体分别旋转的驱动形态,所述一轴驱动形态是以使所述旋转体的旋转速度变为与所述滚筒的旋转速度相等的方式使所述滚筒和所述旋转体一体地旋转的驱动形态;以及The driving unit is configured to rotate the drum and the rotating body in a two-axis driving form such that a rotation speed of the rotating body becomes a rotation speed of the drum a driving mode in which the drum and the rotating body are respectively rotated in a fast manner, wherein the one-axis driving mode is such that the rotating speed of the rotating body becomes equal to the rotating speed of the drum a driving form that rotates integrally with the rotating body;控制部,控制所述驱动部的动作,a control unit that controls an operation of the drive unit,在所述洗涤工序中,所述控制部在由所述驱动部进行基于所述二轴驱动形态的所述滚筒以及所述旋转体的旋转之前,并且在通过来自所述给水部的给水而在所述滚筒内蓄有水的状态下,由所述驱动部进行基于所述一轴驱动形态的所述滚筒以及所述旋转体的旋转。In the washing step, the control unit performs the rotation of the drum and the rotating body based on the two-axis driving mode by the driving unit, and is passed through the water supply from the water supply unit. In a state where water is stored in the drum, the drive unit performs rotation of the drum and the rotating body based on the one-axis drive mode.
- 根据权利要求1所述的滚筒式洗衣机,其特征在于,A drum type washing machine according to claim 1, wherein所述驱动部还具备:离合器机构部,在所述二轴驱动形态和所述一轴驱动形态之间切换所述驱动部的驱动形态;以及形态检测部,检测所述驱动形态,Further, the drive unit further includes a clutch mechanism unit that switches a driving form of the driving unit between the two-axis driving mode and the one-axis driving mode, and a form detecting unit that detects the driving form.所述控制部The control unit使所述离合器机构部以使所述驱动形态在所述洗涤运转结束时被切换到所述一轴驱动形态的方式进行工作,并且,The clutch mechanism unit is operated such that the drive mode is switched to the one-axis drive mode when the washing operation is completed, and在所述滚筒以及所述旋转体进行所述滚筒内蓄有水的状态下的旋转之前,通过所述形态检测部检测所述驱动形态,当所述驱动形态处于所述二轴驱动形态时,由所述离合器机构部进行从所述二轴驱动形态向所述一轴驱动形态的所述驱动形态的切换。Before the rotation of the drum and the rotating body in the state in which the water is stored in the drum, the shape detecting unit detects the driving form, and when the driving form is in the two-axis driving mode, The clutch mechanism unit switches between the two-axis drive mode and the drive mode of the one-axis drive mode.
- 根据权利要求1或2所述的滚筒式洗衣机,其特征在于, A drum type washing machine according to claim 1 or 2, characterized in that还具有检测所述外槽内的水位的水位检测部,There is also a water level detecting portion that detects a water level in the outer tank,所述控制部在基于所述一轴驱动形态的所述滚筒以及所述旋转体的旋转开始之后,当通过所述水位检测部检测到的水位到达规定水位时,由所述驱动部开始基于所述二轴驱动形态的所述滚筒以及所述旋转体的旋转。The control unit starts the operation based on the driving unit when the water level detected by the water level detecting unit reaches a predetermined water level after the rotation of the drum and the rotating body in the one-axis driving mode is started. The drum of the two-axis drive mode and the rotation of the rotating body are described.
- 根据权利要求1~3的任一项所述的滚筒式洗衣机,其特征在于,The drum type washing machine according to any one of claims 1 to 3, characterized in that所述控制部在对所述滚筒被给水至所述滚筒被所述外槽内的水没过的状态之后,由所述驱动部开始基于所述一轴驱动形态的所述滚筒以及所述旋转体的旋转。The control unit starts the drum and the rotating body based on the one-axis driving form by the driving unit after the drum is supplied with water until the drum is not passed by the water in the outer tank. The rotation.
- 根据权利要求1~4的任一项所述的滚筒式洗衣机,其特征在于,The drum type washing machine according to any one of claims 1 to 4, characterized in that所述控制部在所述漂洗工序中,在通过来自所述给水部的给水而使所述滚筒内蓄有水的状态下,由所述驱动部不进行基于所述一轴驱动形态的所述滚筒以及所述旋转体的旋转而是进行基于所述二轴驱动形态的所述滚筒以及所述旋转体的旋转。 In the rinsing step, the control unit does not perform the above-described one-axis driving mode in a state where water is stored in the drum by the water supply from the water supply unit. The drum and the rotation of the rotating body are rotated by the drum and the rotating body based on the two-axis driving mode.
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JPH0741115B2 (en) * | 1986-08-22 | 1995-05-10 | 株式会社日立製作所 | Washing machine |
CN1587488A (en) * | 2004-08-06 | 2005-03-02 | 宁国聚隆实业有限公司 | Programming method for washing clothes of full automatic washing machine |
JP4923950B2 (en) * | 2006-10-26 | 2012-04-25 | パナソニック株式会社 | Washing machine |
CN101935931A (en) * | 2009-06-30 | 2011-01-05 | 三星电子株式会社 | Washing machine and control method thereof |
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