WO2015131482A1 - 滚筒洗衣机 - Google Patents
滚筒洗衣机 Download PDFInfo
- Publication number
- WO2015131482A1 WO2015131482A1 PCT/CN2014/083631 CN2014083631W WO2015131482A1 WO 2015131482 A1 WO2015131482 A1 WO 2015131482A1 CN 2014083631 W CN2014083631 W CN 2014083631W WO 2015131482 A1 WO2015131482 A1 WO 2015131482A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drum
- clutch
- clutch body
- rotating shaft
- rotating
- Prior art date
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Classifications
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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
- D06F17/00—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid
- D06F17/06—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid by rotary impellers
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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
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/40—Driving arrangements for driving the receptacle and an agitator or impeller, e.g. alternatively
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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
- D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry
- D06F23/06—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and rotating or oscillating about an inclined axis
Definitions
- the present invention relates to a drum washing machine.
- the drum washing machine can be carried out continuously from washing to drying, or can be washed without drying. Background technique
- the drum washing machine rotates the drum of the horizontal axis type in the outer tank in which the water is stored in the bottom, lifts and lowers the laundry by a baffle provided in the drum, and passes the laundry to the inner peripheral surface of the drum.
- the laundry is washed by being beaten (refer to Patent Document 1).
- Patent Document 1 Japanese Laid-Open Patent Publication No. 2013-240577 SUMMARY OF INVENTION
- the mechanical force acting on the laundry is likely to be smaller than that of the fully automatic washing machine in which the laundry is difficult to reciprocate, and the washing performance is liable to lower.
- the present invention has been made in view of the above problems, and an object thereof is to provide a drum washing machine capable of improving washing performance.
- a drum washing machine of a main aspect of the present invention includes: an outer groove disposed in a casing; and a drum disposed in the outer groove and rotatable about a horizontal axis or an inclined axis inclined with respect to a horizontal direction; Provided on an inner circumferential surface of the drum; a rotating body disposed at a rear portion of the drum so as to rotate coaxially with the drum, having a protruding portion on the surface in contact with the laundry; and a driving portion, a barrel Rotate in a fast rotation.
- the laundry in the drum is not only hit by the baffle agitation to the inner peripheral surface of the drum but also rubbed or agitated by the projecting portion of the rotating rotating body. Therefore, with only the baffle stirring Compared with the structure of the laundry, the cleaning performance can be improved.
- the drive unit may be disposed behind the outer tub, and includes a drive motor and a transfer of the drive motor to the rotary body and the drum.
- the transmission mechanism of the moment a structure may be employed in which the transmission mechanism portion includes a first rotation shaft, a speed reduction mechanism, and a second rotation shaft, wherein the first rotation shaft is rotated by the torque of the drive motor, and The rotation is transmitted to the rotating body, and the speed reducing mechanism rotates the first rotating shaft rotating shaft coaxially, and transmits the rotation to the drum.
- the drum that requires more torque than the rotating body is rotated by decelerating the rotation of the driving motor, so that the torque generated by the driving motor when the drum and the rotating body are driven can be reduced, so that the power consumption of the driving motor can be reduced.
- the lower portion of the first rotating shaft may be configured such that the speed reducing mechanism includes a planetary gear mechanism having a planetary gear mechanism having a sun gear; an annular inner gear surrounding the sun gear; a plurality of planet gears meshing with both the sun gear and the inner gear, and revolving around the sun gear; and a planet carrier, accompanied by The planetary gears rotate in revolution, and the sun gear is disposed on the first rotating shaft.
- the second rotating shaft encloses the first rotating shaft, the front end portion is coupled to the drum, and the rear end portion is coupled to the planetary carrier.
- the speed reduction mechanism that decelerates the rotation of the first rotating shaft and transmits the second rotating shaft to the second rotating shaft is constituted by the planetary gear mechanism, the gear of the structural speed reducing mechanism is not aligned in the axial direction of the first rotating shaft and the second rotating shaft.
- the size of the transmission mechanism portion in the axial direction, that is, the drive portion can be reduced.
- the drive unit further includes a clutch mechanism portion.
- the clutch mechanism unit switches the form of the drive unit between the first mode and the second mode.
- the internal gear is fixed so as not to be rotatable.
- the first rotating shaft rotates at a rotational speed equal to a rotational speed of the rotor
- the second rotating shaft rotates at a rotational speed decelerated by the planetary gear mechanism, and the second form rotates the internal gear together with the rotor, thereby enabling the first rotating shaft and the second
- the rotating shaft and the planetary gear mechanism integrally rotate at a rotational speed equal to the rotational speed of the rotor.
- the drum and the rotating body in the spin-drying process, by switching the form of the driving portion from the first form to the second form, the drum and the rotating body can be integrally rotated at high speed. Thereby, the laundry in the drum is not stirred by the rotating body, and the washing of the laundry can be appropriately performed.
- the drive unit may further include a bearing unit that rotatably supports the second rotating shaft.
- the clutch mechanism portion includes: a cylindrical clutch body surrounding an outer circumference of the internal gear, and movement in a forward and backward direction with respect to the internal gear is allowed and circumferentially The rotation is restricted; and the moving mechanism portion moves the clutch body in the front-rear direction, and the first engaging portion and the second engaging portion are respectively disposed at the front end portion and the rear end portion of the clutch body, and the bearing unit is And the rotor is provided with a first engaged portion and a second engaged portion, respectively.
- the clutch mechanism portion is configured to move the tubular clutch body in the front-rear direction on the outer circumference of the inner gear
- the planetary gear mechanism can be disposed in the axial direction of the first rotating shaft and the second rotating shaft.
- the configuration space is utilized for the movement space of the clutch body. Therefore, the size of the driving portion of the first rotating shaft and the second rotating shaft in the axial direction can be further reduced.
- the clutch body may be disposed between the bearing unit and the drive motor, and the rear portion of the clutch body may be housed inside the drive motor.
- the moving mechanism portion may include an elastic member interposed between the clutch body and the planetary gear mechanism to cause the clutch body to pass the elastic force. Moving backward, the second engaging portion is engaged with the second engaged portion; and pressing member, the clutch body is moved forward by pressing the clutch body, so that the first One card card The first engaged portion is coupled to the first engaged portion, and is separated from the clutch body in a state in which the second engaging portion is engaged with the second engaged portion.
- the clutch body is moved by the elasticity of the elastic member, thereby engaging the second engaging portion with the second engaged portion, and the clutch body rotates the clutch body together with the rotor.
- the pressing member is in a state of being separated from the clutch body. Therefore, the rotation of the rotor and the clutch body is not hindered by the contact of the pressing member with the clutch body.
- 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 a front elevational view showing the clutch plate of the bearing unit of the bearing unit according to the embodiment.
- Fig. 6 is a view showing a configuration of a clutch body according to an embodiment, and a state in which a guide rib of a clutch body is fitted into a groove portion of an outer circumferential surface of the internal gear.
- drum washing machine which does not have a drying function as an embodiment of the drum washing machine of the present invention will be described with reference to the drawings.
- Fig. 1 is a side cross-sectional view showing the structure of a drum washing machine 1.
- the drum washing machine 1 is provided with a casing 10 constituting an exterior.
- the front surface 10a of the casing 10 is inclined upward from the central portion, and an inclined inlet surface 11 is formed on the inclined surface.
- the entrance 11 is covered by a door 12 that is freely opened and closed.
- the outer groove 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 lowered relative to the horizontal direction.
- the inclination angle of the groove 20 and the drum 22 can be used to be 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.
- the three baffles 23 are provided on the inner circumferential surface of the drum 22 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 disc 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 projecting 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 drive unit 30 rotates the drum 22 and the agitating body 24 at different rotational speeds in the same direction during the washing process and the rinsing process. 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, so that the agitating body 24 rotates at a rotational speed faster than the rotational speed of the drum 22.
- the driving unit 30 integrally rotates the drum 22 and the agitating body 24 at a rotational speed at which the centrifugal force of the laundry applied to the drum 22 is much larger than the gravity during the spin-drying process.
- 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 pipe 41. When the drain valve 40 is opened, the water stored in the outer tank 20 is discharged to the outside through the drain pipe 41.
- a detergent box 50 is disposed in the front upper portion of the casing 10.
- the lotion container 50a containing the detergent in the detergent box 50 is accommodated freely 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 pipe 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 is supplied from the faucet to the outer tank 20 through the water supply pipe 52, the detergent cartridge 50, and the water injection pipe 53. At this time, the detergent contained in the lotion container 50a is supplied to the outer tub 20 along the water flow.
- FIG. 2 and 3 are cross-sectional views showing the structure of the drive unit 30.
- Fig. 2 shows a state in which the form of the drive unit 30 is switched to the first mode
- Fig. 3 shows a state in which the form of the drive unit 30 is switched to the second form.
- 4 is a front view of the rotor 110 showing the structure of the rotor 110 of the drive motor 100.
- FIG. 5 is a front view of the clutch plate 520 showing the structure of the clutch plate 520 of the bearing unit 500.
- Figure 6 (a) and FIG. 6(b) are a rear view and a front view of the clutch body 610 showing the structure of the clutch body 610.
- (c) of FIG. 6 is a view showing a state in which the guide rib 615 of the clutch body 610 is fitted into the groove portion 421 of the outer circumferential surface of the internal gear 420.
- the drive unit 30 is composed of 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, the drum shaft 300, and the planetary gear mechanism 400 constitute a transmission mechanism portion TR that transmits torque generated by the drive motor 100 to 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 wing shaft 200 is equivalent to the first axis of rotation of the present invention.
- the planetary gear mechanism 400 decelerates the rotation of the wing shaft 200 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 drum shaft 300 corresponds to the second rotating shaft of the present invention.
- the bearing unit 500 is capable of supporting the wing shaft 200 and the drum shaft 300 in a freely rotatable manner.
- the clutch mechanism unit 600 switches between the first mode and the second mode in which the blade unit 200 is rotated at a rotation speed equal to the rotation speed of the drive motor 10.
- the rolling axis 300 is rotated at a rotational speed that is decelerated by the planetary gear mechanism 400.
- the wing shaft 200, the rolling shaft 300, and the planetary gear mechanism 400 can be integrally rotated at a rotational speed equal to that of the drive motor 10. .
- the drive motor 100 is an outer rotor type DC brushless motor having a rotor 110 and a stator 120.
- the rotor 110 is formed in a bottomed cylindrical shape, and on its inner peripheral surface, the permanent magnets 111 are arranged throughout the entire circumference.
- an annular clutch plate 112 is provided at the center of the rotor 110.
- Annular serrations 113 are formed on the front surface of the clutch disc 112 toward the front.
- the serrations 113 correspond to the second engaged portion of the present invention.
- the groove portion of the serrations 113 is painted gray for convenience.
- the stator 120 has a coil 121 at the outer peripheral portion. When a control circuit, not shown, supplies a drive current to the coil 121 of the stator 120, the rotor 110 rotates.
- the drum shaft 300 has a hollow shape. Inside the drum shaft 300, sliding bearings 301, 302 are provided on the front and rear portions, respectively, and a mechanical seal 303 is provided on the front end portion.
- a wing shaft 200 is inserted inside the drum shaft 300.
- the outer peripheral surface of the wing shaft 200 slides between the slide shafts 301, 302. Thereby, the wing shaft 200 smoothly rotates in the drum shaft 300. Furthermore, the intrusion of water between the drum shaft 300 and the wing shaft 200 is prevented by the mechanical seal 303.
- the planetary gear mechanism 400 includes: a sun gear 410; an annular internal gear 420 surrounding the sun gear 410; and a plurality of planetary gears 430 meshing with both the sun gear 410 and the internal gear 420, and in the sun
- the circumference of the gear 410 revolves;
- the carrier 440 holds the planetary gears 430 in a rotationally movable manner, and rotates with the revolution of the planetary gears 430; and the support disk 450 supports the rear of the planetary carrier 440.
- the sun gear 410 is fixed to a portion in the middle of the wing shaft 200. Further, the rear end portion of the drum shaft 300 is fixed to the central portion of the front surface of the planetary carrier 440. Thus, a planetary gear mechanism 400 is disposed between the wing shaft 200 and the drum shaft 300. Further, a rotor 110 that drives the motor 100 is fixed to the rear end portion of the wing shaft 200.
- the sun gear 410 rotates.
- the planetary gear 430 revolves around the sun gear 410 while rotating along with the rotation of the sun gear 410.
- the revolving planetary carrier 440 along with the planetary gear 430 rotates, and the roller shaft 300 fixed to the carrier 440 rotates. Since the revolution speed of the planetary gear 430 becomes slower than the rotational speed of the sun gear 410, the drum shaft 300 rotates at a lower rotational speed than the wing shaft 200.
- the torque transmitted to the drum shaft 300 also becomes larger than the torque transmitted from the drive motor 100 to the wing shaft 200.
- a cylindrical bearing portion 510 is provided at a central portion of the bearing unit 500.
- Rolling shafts 511, 512 are provided at the front and rear portions of the inner portion of the bearing portion 510, and a mechanical seal 513 is provided at the front end portion.
- a clutch plate 520 is disposed around the bearing portion 510.
- an annular clutch blade 521 is formed on the clutch piece 520.
- a serration 522 is formed on the outer peripheral surface of the clutch blade 521. The serrations 522 correspond to the first engaged portion of the present invention.
- a fixing flange 530 is formed around the bearing portion 510.
- the drum shaft 300 is inserted into the inside of the shaft portion 510.
- the outer peripheral surface of the drum shaft 300 is supported by the rolling shafts 511, 512. Thereby, the drum shaft 300 can be smoothly rotated in the bearing portion 510. Further, water is prevented from intruding between the shaft portion 510 and the drum shaft 300 by the mechanical seal 513.
- the clutch mechanism unit 600 includes a clutch body 610, a plurality of clutch springs 620, and a clutch drive unit 630.
- the clutch spring 620 and the clutch driving device 630 constitute a moving mechanism portion DM that moves the clutch body 610 in the front-rear direction.
- the clutch body 610 has a cylindrical shape.
- the front surface of the clutch body 610 is fully opened, and the rear surface opens the center portion.
- annular rear serrations 612 are formed toward the rear on the outer periphery of the opening portion 611 formed at the center.
- the rear serrations 612 are formed to be engaged with the serrations 113 by a diameter substantially equal to the serrations 113 of the clutch plates 112.
- Rear serration 612 It corresponds to the second engaging portion of the present invention.
- the groove portion of the rear serration 612 is painted in gray for convenience.
- annular flange portion 613 is formed at the front end portion of the clutch body 610.
- the front serrations 614 are formed on the inner peripheral surface of the flange portion 613 over the entire circumference.
- the front serrations 614 are formed to mesh with the serrations 522 of the clutch blades 521 of the bearing unit 500.
- the front serration 614 corresponds to the first "" joint of the present invention.
- guide ribs 615 extending in the front-rear direction are formed at a plurality of positions.
- the clutch body 610 is disposed between the bearing unit 500 and the drive motor 100 in such a manner as to enclose the planetary gear mechanism 400.
- the rear portion of the clutch body 610 is housed inside the drive motor 100. That is, the rear portion of the clutch body 610 coincides with the drive motor 100 in the axial direction of the wing shaft 200 and the drum shaft 300.
- the groove portion 421 corresponding to each of the guide ribs 615 is formed on the outer peripheral surface of the inner gear 420, and the guide rib 615 is fitted into the groove portion 421.
- the clutch body 610 is in a state in which the movement in the front-rear direction with respect to the internal gear 420 of the planetary gear mechanism 400 is permitted, and the rotation in the circumferential direction is restricted.
- a plurality of clutch springs 620 are disposed between the inner side of the rear surface of the clutch body 610 and the support disk 450 of the planetary gear mechanism 400 at substantially equal intervals.
- the clutch spring 620 corresponds to the elastic member of the present invention.
- the clutch driving device 630 includes a driving machine 631 and a pressing lever 632 extending from the driving machine 631 toward the clutch body 610.
- the driver 631 moves the push lever 632 forward and backward.
- the push rod 632 corresponds to the pressing member of the present invention.
- the drum washing machine 1 performs a washing operation of various operation programs.
- the washing operation includes a washing process, an intermediate dewatering process, a rinsing process, and a final dewatering process.
- the form of the drive unit 30 can be switched to the first form.
- the driver 631 moves the push lever 632 forward.
- the push lever 632 contacts the flange portion 613 of the clutch body 610 to push the flange portion 613 forward.
- the clutch body 610 moves forward in opposition to the spring force of the clutch spring 620. Thereby, the front serrations 614 of the clutch body 610 and the serrations 522 of the clutch plates 520 are engaged.
- the planetary gear 430 revolves around the sun gear 410 while rotating, and the revolving planetary carrier 440 rotates.
- the drum shaft 300 coupled to the planetary carrier 440 rotates.
- the planetary gear mechanism 400 is decelerated, the drum shaft 300 rotates at a rotation speed slower than the wing shaft 200, and the drum 22 coupled to the drum shaft 300 rotates at a rotation speed slower than that of the agitating body 24.
- the agitating body 24 is rotated at a rotational speed faster than the drum 22.
- the rotation speed of the rotor 110 and the reduction ratio of the planetary gear mechanism 400 can be appropriately set so that the agitating body 24 can be rotated at a rotational speed at which the laundry can be rubbed or agitated without damage, and the rotational speed of the drum 22 becomes The centrifugal force of the laundry acting on the drum 22 becomes smaller than the rotational speed of gravity.
- the driving motor 100 alternately performs the right rotation and the left rotation in a state where the water is not in a predetermined water level below the input port 11.
- the drum 22 and the agitating body 24 alternately perform the right rotation and the left rotation in a state where the rotation speed of the agitating body 24 is faster than the rotation speed of the drum 22.
- the laundry in the drum 22 is dropped onto the inner peripheral surface of the drum 22 by being lifted up by the flapper 23. Further, at the rear portion of the drum 22, the laundry comes into contact with the blades 24a of the rotating agitating body 24, and the laundry is rubbed against the blades 24a, or the laundry is stirred by the blades 24a. Thereby, the laundry is washed or rinsed.
- the form of the drive unit 30 is switched to the second form.
- the driver 631 moves the push lever 632 rearward.
- the push lever 632 is disengaged from the clutch body 610, and the clutch body 610 is moved rearward by the elastic force of the clutch spring 620.
- the rear serrations 612 of the clutch body 610 and the serrations 113 of the clutch plates 112 are engaged.
- the clutch spring 620 is maintained in a contracted state, and the elastic clutch body 610 passing through the clutch spring 620 is pressed toward the clutch plates 112.
- the push rods 632 are separated from the clutch body 610.
- the planetary carrier 440 rotates at a rotation speed equal to that of the rotor 110, and the roller coupled to the carrier 440
- the shaft 300 rotates at a rotational speed equal to that of the rotor 110. That is, in the drive unit 30, the wing shaft 200, the clutch body 610, the planetary gear mechanism 400, and the drum shaft 300 are integrally rotated as indicated by a one-dot chain line in FIG. Thereby, the drum 22 and the agitating body 24 are integrally rotated. Further, the clutch spring 620 interposed between the clutch body 610 and the planetary gear mechanism 400 also rotates together with the clutch body 610 and the planetary gear mechanism 400.
- the rotor 110 i.e., the drum 22 and the agitating body 24, rotate so that the centrifugal force acting on the laundry in the drum 22 is much larger than the rotational speed of gravity.
- the laundry is pressed onto the inner peripheral surface of the drum 22 by dehydration by the action of centrifugal force.
- the drum 22 and the type rotate.
- the laundry in the drum 22 is not only hit by the ablation of the baffle 23 to the inner peripheral surface of the drum 22, but also rubbed or agitated 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 stirred only by the baffle 23.
- the agitating body 24 is rotated at a rotation speed equal to that of the drive motor 100, and the agitating body is rotated.
- the structure in which the drum 22 that requires a larger torque is rotated by decelerating the rotation of the drive motor 100 is used. With this configuration, it is possible to reduce the drive roller 22 and the agitation as compared with the case where the drum 22 is rotated at a rotation speed equal to that of the drive motor 100 and the agitator 24 is rotated by increasing the rotation of the drive motor 100.
- the body 24 drives the torque generated by the motor 100, the power consumption of the drive motor 100 can be reduced.
- the rotor 110 of the drive motor 100 and the agitating body 24 are coupled by one wing shaft 200. Therefore, unlike the structure in which the rotating shaft of the rotor 110 and the rotating shaft of the agitating body 24 are respectively disposed and connected to each other, when the driving unit 30 is assembled, it is not necessary to align the axes of the centers of the two rotating shafts. Therefore, assembly of the drive portion becomes easy. In addition, there is no need to worry about the shaft misalignment between the two rotating shafts.
- the speed reduction mechanism that decelerates the rotation of the wing shaft 200 and transmits it to the drum shaft 300 is configured by the planetary gear mechanism 400, the gear constituting the speed reduction mechanism does not pass to the wing shaft 200 and the drum shaft 300.
- the axial direction of the transmission mechanism portion TR that is, the size of the drive unit 30 can be reduced.
- the clutch mechanism unit 600 switches the form of the drive unit 30 from the first form to the second form, whereby the drum 22 and the agitating body 24 can be provided.
- the body rotates at high speed. Thereby, the laundry in the drum 22 is not stirred by the rotating body 24, and the dehydration of the laundry can be appropriately performed.
- the clutch mechanism portion 600 is configured to move the tubular clutch body 610 in the front-rear direction on the outer circumference of the internal gear 420, in the axial direction of the wing shaft 200 and the drum shaft 300.
- the arrangement space of the planetary gear mechanism 400 can be utilized for the movement space of the clutch body 610. Therefore, the size of the drive unit 30 in the axial direction of the wing shaft 200 and the drum shaft 300 can be further reduced.
- the clutch body 610 and the drive motor 100 are overlapped in the axial direction of the wing shaft 200 and the drum shaft 300, the size of the drive unit 30 in the axial direction can be further reduced.
- the clutch body 610 when the clutch body 610 is moved by the elastic force of the clutch spring 620, the rear serrations 612 are engaged with the serrations 113, and when the clutch body 610 and the rotor 110 are rotated by the engagement, The push lever 632 is in a state of being separated from the clutch body 610. Therefore, the rotation of the rotor 110 and the clutch body 610 is not hindered by the contact of the pressing lever 632 with the clutch body 610.
- the speed reduction mechanism that decelerates the rotation of the wing shaft 200 and transmits it to the drum shaft 300 is constituted by the planetary gear mechanism 400.
- the speed reduction mechanism is not limited to the planetary gear mechanism 400.
- the speed reduction mechanism may also be constituted by a parallel shaft gear reduction mechanism.
- the circumferential rotation of the clutch body 610 with respect to the bearing unit 500 is limit. Further, by the engagement of the rear serrations 612 of the clutch body 610 and the serrations 113 of the clutch plates 112 provided on the rotor 110, the circumferential rotation of the clutch body 610 with respect to the rotor 110 is restricted.
- the configuration in which the front end portion of the clutch body 610 is engaged with the bearing unit 500 and the configuration in which the rear end portion of the clutch body 610 is engaged with the rotor 110 are not limited to saw teeth, and may have other configurations.
- the drum 22 is rotated about the tilt axis that is inclined with respect to the horizontal direction.
- the drum washing machine 1 may have a structure in which the drum 22 rotates around the horizontal axis.
- drum washing machine 1 of the above embodiment does not have a drying function, but the present invention can also be applied to a drum washing machine having a drying function, that is, a drum type washing and drying machine.
- 10 housing 20 outer groove; 22 roller; 24 agitator (rotary body); 24a blade (projection); 30 drive unit (drive); 100 drive motor; 110 rotor; 112 clutch plate; 113 sawtooth (first Two engaged parts); 200 wing shaft (first rotating shaft); 300 drum shaft (second rotating shaft); 400 planetary gear mechanism; 410 sun gear; 420 internal gear; 430 planetary gear; 440 planetary carrier; Bearing unit; 520 clutch plate; 522 sawtooth (first engaged portion); 600 clutch mechanism portion; 610 clutch body; 612 rear serration (second engagement portion); 614 front serration (first engagement portion) 620 Clutch spring (elastic member); 630 clutch drive; 631 drive; 632 push rod (pushing member); TR transmission mechanism; DM moving mechanism.
- drive unit 100 drive motor; 110 rotor; 112 clutch plate; 113 sawtooth (first Two engaged parts); 200 wing shaft (first rotating shaft); 300 drum shaft (second rotating shaft); 400 planetary gear mechanism; 410 sun gear; 420 internal gear; 430 planetary
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- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
本发明提供一种能够实现清洗性能的提高的滚筒洗衣机,该滚筒洗衣机(1)具备:外槽(20),配置在壳体(10)内;滚筒(22),配置在外槽(20)内,能够以相对于水平方向倾斜的倾斜轴为中心进行旋转;挡板(23),设置在滚筒(22)的内周面上;搅拌体(24),在滚筒(22)的后部以与该滚筒(22)同轴进行旋转的方式配置,在表面具有与洗涤物相接触的叶片(24a);以及驱动单元(30),使滚筒(22)以及搅拌体(24)向相同方向且以使搅拌体(24)的旋转速度比滚筒(22)的旋转速度快的方式旋转。
Description
滚筒洗衣机
技术领域
本发明涉及一种滚筒洗衣机。 该滚筒洗衣机既可以从洗涤到干燥连续地进 行, 也可以进行洗涤但不进行干燥。 背景技术
以往, 滚筒洗衣机在蓄水于底部的外槽内使横轴型的滚筒旋转, 通过设置 在滚筒内的挡板(baffle )将洗涤物举起并放下, 通过将洗涤物向滚筒的内周面 摔打来洗涤洗涤物(参照专利文献 1 )。
现有技术文献
专利文献
专利文献 1 : 日本特开 2013-240577号公报 发明内容
发明要解决的问题
如上述那样, 在通过挡板搅拌洗涤物的结构中, 洗涤物彼此之间艮难互相 物的全自动洗衣机相比, 作用于洗涤物的机械力容易变小, 清洗性能容易降低。
本发明是鉴于该问题而完成的, 其目的在于提供一种能够实现清洗性能的 提高的滚筒洗衣机。
用于解决问题的方案
本发明的主要样式的滚筒洗衣机, 具备: 外槽, 配置在壳体内; 滚筒, 配 置在所述外槽内, 能够以水平轴或者相对于水平方向倾斜的倾斜轴为中心进行 旋转; 挡板, 设置在所述滚筒的内周面; 旋转体, 在所述滚筒的后部以与该滚 筒同轴进行旋转的方式配置, 在表面具有与洗涤物接触的突状部; 以及驱动部, 筒的旋转速度快的方式旋转。
根据上述的结构, 滚筒内的洗涤物不仅通过挡板搅拌被摔打向滚筒的内周 面, 而且通过旋转的旋转体的突状部摩擦或搅拌。 因此, 与仅是通过挡板搅拌
洗涤物的结构相比, 能够使清洗性能提高。
在本样式的滚筒洗衣机中, 可以釆用下述结构, 即, 所述驱动部配置在所 述外槽的后方, 包括驱动马达和向所述旋转体以及所述滚筒传递该驱动马达产 生的转矩的传递机构部。 在这种情况下, 可以釆用下述结构, 即, 所述传递机 构部包括第一旋转轴、 减速机构以及第二旋转轴, 其中第一旋转轴通过所述驱 动马达的转矩旋转, 并向所述旋转体传递该旋转, 减速机构使所述第一旋转轴 转轴同轴进行旋转, 并向所述滚筒传递该旋转。
根据上述结构, 通过使驱动马达的旋转减速来使比旋转体需要更大转矩的 滚筒旋转, 因而能够减小驱动滚筒以及旋转体时驱动马达产生的转矩, 从而能 够减少驱动马达的耗电。
釆用上述结构的情况下, 进而可以釆用下述结构, 即, 所述第一旋转轴的 下, 可以釆用下述结构, 即, 所述减速机构包括行星齿轮机构, 该行星齿轮机 构具有: 太阳齿轮; 环状的内齿轮, 包围该太阳齿轮; 多个行星齿轮, 与所述 太阳齿轮和所述内齿轮双方啮合, 并在所述太阳齿轮的周围公转; 以及行星齿 轮架, 伴随着这些行星齿轮的公转而旋转, 所述太阳齿轮设置在所述第一旋转 轴上。 此外, 可以釆用下述结构, 即, 所述第二旋转轴内包所述第一旋转轴, 前端部与所述滚筒相连结并且后端部与所述行星齿轮架相连结。
若釆用这样的结构, 则由于驱动马达的转子和旋转体通过一个第一旋转轴 而连结, 因而与转子的旋转轴和旋转体的旋转轴分别设置并相互连结的结构不 同, 组装驱动部时不需要进行对齐两个旋转轴的中心的轴对齐。 因此, 驱动部 的组装变得容易。 此外, 不需要担心两个旋转轴之间产生的轴偏差。
并且, 将第一旋转轴的旋转减速并向第二旋转轴传递的减速机构由于由行 星齿轮机构构成, 因而结构减速机构的齿轮不会向第一旋转轴以及第二旋转轴 的轴线方向排列, 该轴线方向的传递机构部、 即驱动部的尺寸就能够缩小。 由 此, 由于外槽以及滚筒能够向前后方向增大, 因而能够增多洗涤容量。
在釆用上述结构的情况下, 可以釆用下述结构, 即, 所述驱动部还包括离 合器机构部。 在这种情况下, 所述离合器机构部将所述驱动部的形态在第一形 态和第二形态间切换, 其中, 第一形态是将所述内齿轮固定使其无法旋转, 由 此能使所述第一旋转轴以与所述转子的旋转速度相等的旋转速度旋转, 并使所
述第二旋转轴以被所述行星齿轮机构减速后的旋转速度旋转, 第二形态是使所 述内齿轮与所述转子一起旋转, 由此能使所述第一旋转轴、 所述第二旋转轴及 所述行星齿轮机构以与所述转子的旋转速度相等的旋转速度一体旋转。
若釆用这样的结构, 则在脱水工序中, 通过将驱动部的形态从第一形态向 第二形态切换, 能够使滚筒和旋转体一体高速旋转。 由此, 不会发生滚筒内的 洗涤物被旋转体搅拌的事情, 能够恰当地进行洗涤物的脱水。
釆用上述结构的情况下, 可以釆用下述结构, 即, 所述驱动部还包括以旋 转自由的方式支承所述第二旋转轴的轴承单元。 并且, 可以釆用下述结构, 即, 所述离合器机构部包括: 筒状的离合器体, 包围所述内齿轮的外周, 相对于所 述内齿轮向前后方向的移动被允许并且向周向的转动被限制; 以及移动机构部, 使该离合器体向前后方向移动, 在所述离合器体的前端部以及后端部分别设置 第一卡合部以及第二卡合部, 并且在所述轴承单元以及所述转子分别设置第一 被卡合部以及第二被卡合部。 这种情况下, 当所述离合器体通过所述移动机构 部向前方移动使所述第一卡合部卡合在所述第一被卡合部时, 所述离合器体相 对于所述轴承单元的向周向的转动被限制, 所述内齿轮被固定而无法旋转。 另 一方面, 当所述离合器体通过所述移动机构部向后方移动且所述第二卡合部卡 合在所述第二被卡合部时, 所述离合器体相对于所述转子的向周向的转动被限 制, 所述内齿轮能与所述转子一起旋转。
这样, 由于釆用离合器机构部在内齿轮的外圆周上, 使筒状的离合器体向 前后方向移动的结构, 因而在第一旋转轴以及第二旋转轴的轴线方向上, 能够 将行星齿轮机构的配置空间利用于离合器体的移动空间。 因此, 能够使第一旋 转轴以及第二旋转轴在轴线方向上的驱动部的尺寸进一步缩小。
釆用上述结构的情况下, 进而所述离合器体可配置在所述轴承单元和所述 驱动马达之间 , 并使得所述离合器体的后部收容到所述驱动马达的内部。
若釆用这样的结构, 则由于离合器体和驱动马达在第一旋转轴以及第二旋 转轴的轴线方向上重合, 所以能够更进一步缩小在该轴线方向上的驱动部的尺 寸。
釆用上述结构的情况下, 可进而釆用下述结构, 即, 所述移动机构部包括: 弹性构件, 介于所述离合器体和所述行星齿轮机构之间, 使所述离合器体通过 弹力向后方移动, 使所述第二卡合部卡合在所述第二被卡合部上; 以及推压构 件, 通过推压所述离合器体使所述离合器体向前方移动, 使所述第一卡合部卡
合在所述第一被卡合部上, 并且在所述第二卡合部卡合在所述第二被卡合部上 的状态下, 与所述离合器体分离。
若釆用这样的结构, 则离合器体因弹性构件的弹性而移动, 由此使第二卡 合部卡合到所述第二被卡合部上, 由该卡合使离合器体与转子一起旋转时, 推 压构件成为从离合器体离开的状态。 因此, 不会因推压构件向离合器体的接触 而妨碍转子和离合器体的旋转。
发明效果
根据本发明, 能够提供可以实现清洗性能的提高的滚筒洗衣机。
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将本发明实施化时的一个例示, 本发明不受以下的 实施方式中所述的任何限制。 附图说明 图 2是示出实施方式所涉及的驱动单元的结构的剖视图。
图 3是示出实施方式所涉及的驱动单元的结构的剖视图。
图 4是示出实施方式所涉及的驱动马达的转子的结构的、 转子的主视图。 图 5是示出实施方式所涉及的轴承单元的离合器片的结构、 的离合器片的 主视图。
图 6是示出实施方式所涉及的离合器体的结构的图、 以及示出离合器体的 导向筋嵌入内齿轮的外周面的槽部的状态的图。 具体实施方式
以下, 关于作为本发明的滚筒洗衣机的一实施方式的不具有干燥功能的滚 筒洗衣机, 参照附图进行说明。
图 1是示出滚筒洗衣机 1的结构的侧面剖视图。
滚筒洗衣机 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, 倾斜的面上形成有洗涤物的投入口 11。 投入口 11被自由开闭的门 12 所遮盖。
在壳体 10内, 外槽 20由多个减振器 21弹性地支承。 滚筒 22被自由旋转 地配置在外槽 20内。 外槽 20以及滚筒 22的后表面侧相对于水平方向以放低的
槽 20以及滚筒 22的倾斜角度可釆用为 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, 与投入口 11一 起均通过门 12关闭。 在滚筒 22的内周面上, 形成有多个脱水孔 22b。 进而, 三 个挡板 23在周向上以大致相等的间隔设置在滚筒 22的内周面上。
搅拌体 24被自由旋转地配置在滚筒 22的后部。搅拌体 24具有大致圆盘形 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同轴进行旋转。 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。
在外槽 20的后方,配置产生驱动滚筒 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在清洗工序以及漂洗工 序时, 使滚筒 22 以及搅拌体 24向相同方向以不同旋转速度进行旋转。 具体地 说, 驱动单元 30使滚筒 22以令施加到滚筒 22内的洗涤物的离心力小于重力的 旋转速度进行旋转, 使搅拌体 24 以比滚筒 22的旋转速度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以令施加到 滚筒 22内的洗涤物的离心力远远大于重力的旋转速度进行一体旋转。 驱动单元 30的详细结构会在后面再进行说明。
在外槽 20的底部形成有排水口部 20b。在排水口部 20b上设置有排水阀 40。 排水阀 40与排水管 41连接。 当打开排水阀 40时存于外槽 20内的水就会通过 排水管 41向机外排出。
在壳体 10内的前方上部配置有洗涤剂盒 50。 在洗涤剂盒 50中收容洗涤剂 的洗剂容器 50a从前方自由抽出地收容。 洗涤剂盒 50通过给水管 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。 当打开给水阀 51时, 自来水从水龙头通过给水管 52、 洗 涤剂盒 50以及注水管 53提供给外槽 20内。 此时, 收容在洗剂容器 50a里的洗 涤剂顺着水流提供给外槽 20内。
接着, 关于驱动单元 30的结构进行详细说明。
图 2以及图 3是示出驱动单元 30的结构的剖视图。 图 2示出驱动单元 30 的形态切换到第一形态的状态, 图 3示出驱动单元 30的形态切换到第二形态的 状态。 图 4是示出驱动马达 100的转子 110的结构的、 转子 110的主视图。 图 5 是示出轴承单元 500的离合器片 520的结构的、 离合器片 520的主视图。 图 6
( a )以及图 6 ( b )是示出离合器体 610的结构的、 离合器体 610的后视图以及 主视图。 图 6 ( c )是示出离合器体 610的导向筋 615嵌入内齿轮 420的外周面 的槽部 421的状态的图。
驱动单元 30由驱动马达 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构成。 驱动马达 100产生用于驱动搅拌体 24以及滚筒 22的转矩。 翼轴 200、 滚筒轴 300以及行星齿轮机构 400构成向搅 拌体 24以及滚筒 22传递驱动马达 100产生的转矩的传递机构部 TR。 翼轴 200 通过驱动马达 100的转矩进行旋转, 并向搅拌体 24传递该旋转。 翼轴 200相当 于本发明的第一旋转轴。 行星齿轮机构 400将翼轴 200的旋转减速并向滚筒轴 300传递。滚筒轴 300以通过行星齿轮机构 400减速后的旋转速度与翼轴 200同 轴进行旋转,并向滚筒 22传递该旋转。滚筒轴 300相当于本发明的第二旋转轴。 轴承单元 500能够自由旋转地支承翼轴 200以及滚筒轴 300。 离合器机构部 600 使驱动部 30的形态在第一形态和第二形态之间切换, 其中, 所述第一形态是能 使翼轴 200以与驱动马达 10的旋转速度相等的旋转速度进行旋转,使滚动轴 300 以通过行星齿轮机构 400减速后的旋转速度进行旋转, 所述第二形态是能使翼 轴 200、 滚动轴 300以及行星齿轮机构 400以与驱动马达 10相等的旋转速度进 行一体旋转。
驱动马达 100是外转子型的 DC无刷马达, 具备转子 110和定子 120。 转子 110形成为有底的圆筒状, 在其内周面上, 永久磁石 111贯穿整周地排列。 如图 4所示, 在转子 110的中央部设置有圆环状的离合器片 112。 在离合器片 112的 前表面朝向前方形成有环状的锯齿 113。锯齿 113相当于本发明的第二被卡合部。 而且, 在图 4中为了方便, 锯齿 113的槽部分涂成灰色。 定子 120在外周部具 有线圈 121。 当从未作图示的控制电路向定子 120的线圈 121提供驱动电流时, 转子 110进行旋转。
滚筒轴 300具有中空形状。 在滚筒轴 300的内部, 前部以及后部上分别设 置滑动轴承 301、 302, 前端部上设置机械密封 303。
在滚筒轴 300的内部***翼轴 200。翼轴 200的外周面在滑动轴 ? 301、 302 之间进行滑动。 由此, 翼轴 200在滚筒轴 300内顺利地进行旋转。 此外, 通过 机械密封 303防止水向滚筒轴 300和翼轴 200之间的侵入。
行星齿轮机构 400具备: 太阳齿轮 410; 环状的内齿轮 420, 包围太阳齿轮 410; 多个行星齿轮 430, 与太阳齿轮 410与内齿轮 420的双方啮合, 并在太阳
齿轮 410 的周围公转; 行星齿轮架 440, 以旋转自由的方式保持这些行星齿轮 430, 伴随着行星齿轮 430的公转而进行旋转; 以及支承盘 450, 支承行星齿轮 架 440的后方。
太阳齿轮 410固定在翼轴 200的中间的部位。 此外, 滚筒轴 300的后端部 固定在行星齿轮架 440的前表面中央部。 这样, 在翼轴 200和滚筒轴 300之间 设置行星齿轮机构 400。 进而, 在翼轴 200的后端部固定有驱动马达 100的转子 110。
当翼轴 200伴随着转子 110的旋转而进行旋转时,太阳齿轮 410进行旋转。 在内齿轮 420处于被固定状态的情况下, 伴随着太阳齿轮 410的旋转, 行星齿 轮 430一边自转一边在太阳齿轮 410的周围进行公转。 伴随着行星齿轮 430的 公转行星齿轮架 440会进行旋转, 固定于行星齿轮架 440上的滚筒轴 300会进 行旋转。 由于行星齿轮 430的公转速度变得比太阳齿轮 410的旋转速度慢, 因 而滚筒轴 300以比翼轴 200低的旋转速度进行旋转。 这样, 由于翼轴 200的旋 转速度减速并向滚筒轴 300传递, 所以传递到滚筒轴 300的转矩也变得比从驱 动马达 100传递到翼轴 200的转矩大。
在轴承单元 500的中央部设置圆筒状的轴承部 510。 在轴承部 510的内部 的前部和后部设置滚动轴 ? 511、 512, 在前端部设置机械密封 513。 此外, 在 轴承单元 500上, 离合器片 520设置在轴承部 510的周围。 如图 5所示, 在离 合器片 520上形成有环状的离合器叶片 521。在离合器叶片 521的外周面上形成 有锯齿 522。锯齿 522相当于本发明的第一被卡合部。并且,在轴承单元 500上, 轴承部 510的周围还形成有固定凸缘 530。
滚筒轴 300***到轴 ? 部 510的内部。滚筒轴 300的外周面由滚动轴 ? 511、 512支承。 由此, 滚筒轴 300可以在轴承部 510内顺利地进行旋转。 此外, 通过 机械密封 513防止水向轴 ? 部 510和滚筒轴 300之间侵入。
离合器机构部 600具备离合器体 610、 多个离合器弹簧 620、 以及离合器驱 动装置 630。离合器弹簧 620以及离合器驱动装置 630构成使离合器体 610向前 后方向移动的移动机构部 DM。
离合器体 610具有筒状。 离合器体 610的前表面全部打开, 后表面将中央 部打开。 如图 6 ( a ) 所示, 在离合器体 610的后表面上, 在中央形成的开口部 611的外周边上朝向后方形成有环状的后部锯齿 612。 后部锯齿 612以与离合器 片 112的锯齿 113大致相等的直径、 与锯齿 113啮合的方式形成。 后部锯齿 612
相当于本发明的第二卡合部。 此外, 在图 6 ( a ) 为了方便, 后部锯齿 612的槽 部分涂成灰色。
此外, 在离合器体 610的前端部形成有环状的凸缘部 613。 如图 6 ( b ) 所 示, 前部锯齿 614遍及整周地形成在凸缘部 613的内周面上。 前部锯齿 614以 与轴承单元 500的离合器叶片 521的锯齿 522啮合的方式形成。 前部锯齿 614 相当于本发明的第一"" ^合部。 进而, 在离合器体 610 的内周面上, 在多个位置 上形成有向前后方向延伸的导向筋 615。
离合器体 610以内包行星齿轮机构 400的方式配置在轴承单元 500和驱动 马达 100之间。 离合器体 610的后部收容在驱动马达 100的内部。 即, 离合器 体 610其后部在翼轴 200以及滚筒轴 300的轴线方向上与驱动马达 100相重合。 如图 6( c )所示,在内齿轮 420的外周面上形成有对应各导向筋 615的槽部 421、 导向筋 615嵌入到槽部 421 中。 由此, 离合器体 610成为相对于行星齿轮机构 400的内齿轮 420向前后方向的移动被允许、 并且向周向的转动被限制的状态。 多个离合器弹簧 620以大致相等的间隔配置在离合器体 610的后表面的内侧和 行星齿轮机构 400的支承盘 450之间。 离合器弹簧 620相当于本发明的弹性构 件。
离合器驱动装置 630具备驱动机 631、 以及从驱动机 631朝向离合器体 610 延伸的推压杆 632。 驱动机 631使推压杆 632向前后移动。推压杆 632相当于本 发明的推压构件。
滚筒洗衣机 1进行各种运转程序的洗涤运转。 洗涤运转包括清洗工序、 中 间脱水工序、 漂洗工序以及最终脱水工序。
在清洗工序以及漂洗工序中, 驱动单元 30的形态能够切换为第一形态。 切 换为第一形态的情况下, 如图 2所示, 驱动机 631使推压杆 632向前方移动。 推压杆 632接触离合器体 610的凸缘部 613将凸缘部 613推向前方。 离合器体 610与离合器弹簧 620的弹力相逆而向前方移动。 由此, 离合器体 610的前部锯 齿 614和离合器片 520的锯齿 522相啮合。
当前部锯齿 614与锯齿 522啮合时, 离合器体 610相对于轴承单元 500向 周向的转动被限制, 成为不可转动的状态。 由此, 行星齿轮机构 400 的内齿轮 420成为以不可旋转的方式固定的状态。这样的状态下,当转子 110进行旋转时, 翼轴 200以与转子 110的旋转速度相等的旋转速度进行旋转, 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。 伴随着翼轴
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, 由于内 齿轮 420处于被固定的状态, 因而行星齿轮 430一边自转一边在太阳齿轮 410 的周围进行公转, 伴随着此公转行星齿轮架 440进行旋转。 由此, 与行星齿轮 架 440连结的滚筒轴 300进行旋转。 由于通过行星齿轮机构 400减速, 因而滚 筒轴 300以比翼轴 200慢的旋转速度进行旋转 , 与滚筒轴 300连结的滚筒 22以 比搅拌体 24慢的旋转速度进行旋转。 换句话说, 搅拌体 24以比滚筒 22快的旋 转速度进行旋转。 此外, 转子 110的旋转速度以及行星齿轮机构 400的减速比 可以适当设定为使搅拌体 24以能够以不损伤的程度来摩擦或搅拌洗涤物的旋转 速度进行旋转, 并且滚筒 22的旋转速度成为使作用于滚筒 22内的洗涤物的离 心力变得小于重力的旋转速度。
在清洗工序以及漂洗工序中, 在外槽 20内, 在水存到不到投入口 11下边 的规定的水位的状态下, 驱动马达 100 交替地进行右旋转以及左旋转。 由此, 滚筒 22和搅拌体 24以搅拌体 24的旋转速度比滚筒 22的旋转速度快的状态交 替地进行右旋转以及左旋转。 滚筒 22内的洗涤物通过由挡板 23举起落下而被 摔打到滚筒 22的内周面。 此外, 在滚筒 22的后部, 洗涤物与旋转的搅拌体 24 的叶片 24a接触,进行洗涤物与叶片 24a的摩擦、或洗涤物通过叶片 24a来搅拌。 由此, 洗涤物被清洗或漂洗。
接着, 在中间脱水工序以及最终脱水工序中, 驱动单元 30的形态切换为第 二形态。 在切换为第二形态的情况下, 如图 3所示, 驱动机 631使推压杆 632 向后方移动。 推压杆 632从离合器体 610分离, 离合器体 610通过离合器弹簧 620的弹力向后方移动。 由此, 离合器体 610的后部锯齿 612和离合器片 112的 锯齿 113啮合。 此外, 即使在后部锯齿 612和锯齿 113啮合的状态下, 离合器 弹簧 620也维持在收缩的状态, 通过离合器弹簧 620的弹力离合器体 610被压 向离合器片 112。 当后部锯齿 612和锯齿 113啮合时, 推压杆 632从离合器体 610分离。
当后部锯齿 612和锯齿 113啮合时, 离合器体 610相对于转子 110的向周 向的转动被限制, 离合器体 610与转子 110—同成为能够旋转的状态。 在这样 的状态下, 当转子 110进行旋转时, 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和内齿轮 420以与转子 110相等的旋转速度进行旋转。 由此, 行星齿轮 架 440以与转子 110相等的旋转速度进行旋转, 与行星齿轮架 440连结的滚筒
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, 如图 3 中用单点划线所示,翼轴 200、 离合器体 610、行星齿轮机构 400以及滚筒轴 300 一体进行旋转。 由此, 滚筒 22和搅拌体 24—体地进行旋转。 而且, 介于离合 器体 610和行星齿轮机构 400之间的离合器弹簧 620也与离合器体 610以及行 星齿轮机构 400一同进行旋转。
在中间脱水工序以及最终脱水工序中, 转子 110, 即滚筒 22以及搅拌体 24 以使作用于滚筒 22内的洗涤物的离心力远远大于重力的旋转速度进行旋转。 通 过离心力的作用洗涤物被压到滚筒 22的内周面上而脱水。
如以上说明的, 根据本实施方式, 在清洗工序以及漂洗工序中, 滚筒 22和 式进行旋转。 由此, 滚筒 22内的洗涤物不仅通过由挡板 23搅拌而被摔打到滚 筒 22的内周面上, 而且通过旋转的搅拌体 24的叶片 24a进行摩擦或搅拌。 因 此, 与仅仅通过挡板 23搅拌洗涤物的结构相比, 能够提高清洗性能以及漂洗性 能。
进而, 根据本实施方式, 作为用于使搅拌体 24比滚筒 22还快地旋转的驱 动单元 30的结构, 釆用使搅拌体 24以与驱动马达 100相等的旋转速度进行旋 转、 使与搅拌体 24相比需要更大的转矩的滚筒 22通过使驱动马达 100的旋转 减速来旋转的结构。 由此, 与釆用使滚筒 22以与驱动马达 100相等的旋转速度 进行旋转、 使搅拌体 24通过使驱动马达 100的旋转增速来旋转的结构的情况相 比, 能够缩小驱动滚筒 22以及搅拌体 24时驱动马达 100产生的转矩, 能够减 少驱动马达 100的耗电。
进而, 才艮据本实施方式, 驱动马达 100的转子 110和搅拌体 24通过一个翼 轴 200相连结。 因此, 与转子 110的旋转轴和搅拌体 24的旋转轴分别设置并相 互连结的结构不同, 组装驱动单元 30时, 不需要对齐两个旋转轴的中心的轴对 齐。 因此, 驱动部的组装变得容易。 此外, 不需要担心两个旋转轴之间产生的 轴偏差。
进而, 根据本实施方式, 将翼轴 200的旋转减速并向滚筒轴 300传递的减 速机构由于是通过行星齿轮机构 400 而构成的, 因而构成减速机构的齿轮不会 向翼轴 200以及滚筒轴 300的轴线方向排列, 该轴线方向的传递机构部 TR、 即 驱动单元 30的尺寸就能够缩小。 由此, 由于外槽 20以及滚筒 22能够向前后方 向增大, 因而能够增多洗涤容量。
进而, 才艮据本实施方式, 在中间脱水工序以及最终脱水工序中, 通过由离 合器机构部 600将驱动单元 30的形态从第一形态向第二形态切换, 能够使滚筒 22和搅拌体 24—体地高速旋转。 由此, 不会发生滚筒 22内的洗涤物被旋转体 24搅拌的事情, 能够恰当地进行洗涤物的脱水。
进而, 根据本实施方式, 由于离合器机构部 600是在内齿轮 420的外圆周 上使筒状的离合器体 610向前后方向移动而构成的, 因而在翼轴 200 以及滚筒 轴 300的轴线方向上,能够将行星齿轮机构 400的配置空间利用于离合器体 610 的移动空间。 因此, 能够进一步缩小翼轴 200 以及滚筒轴 300的轴线方向上的 驱动单元 30的尺寸。
进而, 才艮据本实施方式, 由于离合器体 610和驱动马达 100在翼轴 200以 及滚筒轴 300 的轴线方向上重合, 因而能够更进一步地缩小该轴线方向上的驱 动单元 30的尺寸。
进而, 根据本实施方式, 通过离合器体 610因离合器弹簧 620的弹力而移 动, 从而使得后部锯齿 612与锯齿 113相卡合, 在通过该卡合使离合器体 610 与转子 110—同旋转时, 推压杆 632变为从离合器体 610分离的状态。 因此, 不会因推压杆 632向离合器体 610的接触而妨碍转子 110以及离合器体 610的 旋转。
以上, 关于本发明的实施方式进行了说明, 但是本发明不受任何上述实施 例如, 在上述实施方式中, 使翼轴 200的旋转减速并向滚筒轴 300传递的 减速机构由行星齿轮机构 400构成。 但是, 减速机构并不限定于行星齿轮机构 400。 例如, 减速机构也可以由平行轴齿轮减速机构构成。
进而, 在上述实施方式中, 通过离合器体 610的前部锯齿 614和设置于轴 承单元 500上的离合器片 520的锯齿 522的卡合, 离合器体 610相对于轴承单 元 500的向周向的转动被限制。 此外, 通过离合器体 610的后部锯齿 612和设 置于转子 110上的离合器片 112的锯齿 113的卡合, 离合器体 610相对于转子 110 的向周向的转动被限制。 但是, 将离合器体 610 的前端部卡合到轴承单元 500的结构、以及将离合器体 610的后端部卡合到转子 110的结构不局限于锯齿, 也可以是其它的结构。 例如, 也可以釆用在离合器体 610 的前端部以及后端部 形成凸起, 并且在轴承单元 500 以及转子 110上形成凹陷或者孔, 凸起嵌入到 凹陷或者孔里的结构。
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。 但是, 滚筒洗衣机 1也可以是滚筒 22以水平轴为中心进行旋转的结 构。
进而, 上述实施方式的滚筒洗衣机 1不具备干燥功能, 但本发明也可以用 于具备干燥功能的滚筒洗衣机、 即滚筒式洗涤干燥机。
此外, 本发明的实施方式在权利要求书示出的技术思想的范围内可以适当 地进行各种变更。
附图标记说明
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); 100 驱动马达; 110 转子; 112 离合器片; 113 锯齿(第二被卡合部); 200 翼轴(第一旋转轴); 300 滚筒轴(第二旋 转轴); 400 行星齿轮机构; 410 太阳齿轮; 420 内齿轮; 430 行星齿轮; 440 行星齿轮架; 500 轴承单元; 520 离合器片; 522 锯齿(第一被卡合 部); 600 离合器机构部; 610 离合器体; 612 后部锯齿(第二卡合部); 614 前部锯齿(第一卡合部); 620 离合器弹簧(弹性构件); 630 离合器驱动装 置; 631 驱动机; 632 推压杆(推压构件); TR 传递机构部; DM 移动机 构部。
Claims
1. 一种滚筒洗衣机, 其特征在于, 具备:
外槽, 配置在壳体内;
滚筒, 配置在所述外槽内, 能够以水平轴或者相对于水平方向倾斜的倾斜 轴为中心进行旋转;
挡板, 设置在所述滚筒的内周面;
旋转体, 在所述滚筒的后部以与该滚筒同轴进行旋转的方式配置, 在表面 具有与洗涤物接触的突状部; 以及 度比所述滚筒的旋转速度快的方式旋转。
2. 根据权利要求 1所述的滚筒洗衣机, 其特征在于,
所述驱动部配置在所述外槽的后方, 包括驱动马达、 以及向所述旋转体及 所述滚筒传递该驱动马达产生的转矩的传递机构部,
所述传递机构部包括:
第一旋转轴, 因所述驱动马达的转矩而旋转, 并向所述旋转体传递该旋转; 减速机构, 使所述第一旋转轴的旋转减速; 以及
第二旋转轴, 以由所述减速机构减速后的旋转速度与所述第一旋转轴同轴 进行旋转, 并向所述滚筒传递该旋转。
3. 根据权利要求 2所述的滚筒洗衣机, 其特征在于, 的转子相连结,
所述减速机构包括行星齿轮机构, 该行星齿轮机构具有: 太阳齿轮; 环状 的内齿轮, 包围该太阳齿轮; 多个行星齿轮, 与所述太阳齿轮和所述内齿轮双 方啮合, 并在所述太阳齿轮的周围公转; 以及行星齿轮架, 伴随着这些行星齿 轮的公转而旋转, 所述太阳齿轮设置在所述第一旋转轴上,
所述第二旋转轴内包所述第一旋转轴, 前端部与所述滚筒相连结并且后端 部与所述行星齿轮架相连结。
4. 根据权利要求 3所述的滚筒洗衣机, 其特征在于,
所述驱动部还包括离合器机构部,
所述离合器机构部将所述驱动部的形态在第一形态和第二形态间进行切
换, 其中, 第一形态是将所述内齿轮固定使其无法旋转, 由此能使所述第一旋 转轴以与所述转子的旋转速度相等的旋转速度旋转, 并使所述第二旋转轴以被 所述行星齿轮机构减速后的旋转速度旋转, 第二形态是使所述内齿轮与所述转 子一起旋转, 由此能使所述第一旋转轴、 所述第二旋转轴及所述行星齿轮机构 以与所述转子的旋转速度相等的旋转速度一体地进行旋转。
5. 根据权利要求 4所述的滚筒洗衣机, 其特征在于,
所述驱动部还包括以旋转自由的方式支承所述第二旋转轴的轴承单元, 所述离合器机构部包括: 筒状的离合器体, 包围所述内齿轮的外周, 相对 于所述内齿轮向前后方向的移动被允许并且向周向的转动被限制; 以及移动机 构部, 使该离合器体向前后方向移动,
在所述离合器体的前端部以及后端部 , 分别设置有第一"" ^合部以及第二卡 合部, 并且在所述轴承单元以及所述转子, 分别设置有第一被卡合部以及第二 被卡合部,
当所述离合器体通过所述移动机构部向前方移动使所述第一卡合部卡合在 所述第一被卡合部时, 所述离合器体相对于所述轴承单元的向周向的转动被限 制, 所述内齿轮被固定成无法旋转,
当所述离合器体通过所述移动机构部向后方移动使所述第二卡合部卡合在 所述第二被卡合部时, 所述离合器体相对于所述转子的向周向的转动被限制, 所述内齿轮能与所述转子一起旋转。
6. 根据权利要求 5所述的滚筒洗衣机, 其特征在于,
所述离合器体配置于所述轴承单元与所述驱动马达之间, 并使得所述离合 器体的后部被收容于所述驱动马达的内部。
7. 根据权利要求 5或 6所述的滚筒洗衣机, 其特征在于,
所述移动机构部包括:
弹性构件, 介于所述离合器体与所述行星齿轮机构之间, 使所述离合器体 通过弹力向后方移动, 使所述第二卡合部卡合在所述第二被卡合部上; 以及 推压构件, 通过推压所述离合器体使所述离合器体向前方移动, 使所述第 一卡合部卡合在所述第一被卡合部上, 并且在所述第二卡合部卡合在所述第二 被卡合部上的状态下, 与所述离合器体分离。
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