WO2012119370A1 - 一种小型全自动波轮洗衣机 - Google Patents

一种小型全自动波轮洗衣机 Download PDF

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Publication number
WO2012119370A1
WO2012119370A1 PCT/CN2011/077968 CN2011077968W WO2012119370A1 WO 2012119370 A1 WO2012119370 A1 WO 2012119370A1 CN 2011077968 W CN2011077968 W CN 2011077968W WO 2012119370 A1 WO2012119370 A1 WO 2012119370A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor
shaft
washing machine
outer cylinder
pulsator
Prior art date
Application number
PCT/CN2011/077968
Other languages
English (en)
French (fr)
Inventor
吕佩师
许升
刘杰
皮晓杰
陈玉玲
Original Assignee
海尔集团公司
青岛海尔洗衣机有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN2011100523284A external-priority patent/CN102158010A/zh
Priority claimed from CN201110052336.9A external-priority patent/CN102140752B/zh
Priority claimed from CN201110067214.7A external-priority patent/CN102251373B/zh
Application filed by 海尔集团公司, 青岛海尔洗衣机有限公司 filed Critical 海尔集团公司
Priority to KR1020137025969A priority Critical patent/KR101546173B1/ko
Priority to US14/002,298 priority patent/US9145633B2/en
Priority to JP2013555727A priority patent/JP5822151B2/ja
Publication of WO2012119370A1 publication Critical patent/WO2012119370A1/zh

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • 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
    • 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
    • D06F13/00—Washing machines having receptacles, stationary for washing purposes, with agitators therein contacting the articles being washed 
    • D06F13/02—Washing machines having receptacles, stationary for washing purposes, with agitators therein contacting the articles being washed  wherein the agitator has an oscillatory rotary motion only
    • 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 
    • D06F23/04—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 a vertical axis
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/206—Mounting of motor
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs

Definitions

  • the invention relates to the field of washing machines, in particular to a pulsator type washing machine which is small in size, full in function and capable of fully automatic washing. Background technique
  • the washing capacity of ordinary household automatic washing machines is generally in the same; ⁇ 6 kg or so, it is very inconvenient when washing small pieces of clothing, it is not economical and not cost-effective.
  • these small washing machines can not directly adopt the structure of the ordinary automatic washing machine, and can only realize the washing function of the ordinary automatic washing machine.
  • dehydration, and the fully automatic working method of simultaneous washing and dehydration can not reduce the volume of the washing machine, so there is a lack of a small washing machine which is small in size and capable of fully automatic washing.
  • the existing pulsator washing machine adopts a direct drive type motor, and the motor is directly installed at the bottom of the outer cylinder of the washing machine, and the motor drive shaft drives the pulsator drive shaft to work, so that the volume of the washing machine is reduced, but the bottom space is very narrow, Install drain pump, water level sensor and other components.
  • the motor of the washing machine is fixedly connected by bolts, screws and an outer cylinder, and the small washing machine has a problem that the screw hole is not easily aligned due to the narrow fixing of the internal space, and the installation is inconvenient.
  • the patent document disclosed in the publication No. CN1375593A discloses a small washing machine which separates the motor from the washing tub.
  • the motor is installed in a cavity, and the washing drum is driven by the transmission device in the axial direction of the motor, and the washing tub can be freely removed.
  • This washing machine can only be used for washing and rinsing functions. Since there is only one washing tub, the dehydrating function cannot be achieved.
  • a new type of direct-drive clutch washing machine is disclosed.
  • the washing machine adopts a buoyancy type working mode, and the motor adopts a direct drive type motor.
  • the motor shaft is directly connected with the pulsator shaft, and the motor is disposed at the bottom of the outer cylinder through the middle.
  • the device is mounted with the outer cylinder, and bolts or screws are required for fixing between the motor and the intermediate device, which increases the difficulty of fixing.
  • a new direct drive device for a washing machine is disclosed.
  • the motor is mounted on the washing machine through a reducer.
  • the output shaft of the reducer acts as a pulsator shaft, and the motor shaft and the reducer are connected to indirectly drive the pulsator shaft.
  • a speed reducer is arranged between the motor and the outer cylinder of the washing machine, which results in a complicated connection structure, a stable transmission between the components, and a high failure rate.
  • motor leakage occurs due to poor motor assembly, component wear, line aging, and high humidity in the environment. Since the motor drive shaft and the pulsator drive shaft are both metal materials, leakage will be transmitted to the washing machine. In the inner cylinder, the washing machine is charged, posing a risk of electric shock to the user.
  • buoyancy type washing machine In the prior art, there is a type of buoyancy type washing machine.
  • the lifting and lowering of the inner cylinder is controlled by the buoyancy of water, so the washing capacity is small, and the structure is as follows:
  • the middle of the bottom of the inner cylinder is sleeved on the pulsator drive shaft by a closed bearing.
  • the clutch device of the washing machine is composed of a concave gear mounted on the periphery of the sealed bearing, and a convex gear mounted on the pulsator drive shaft between the outer cylinder and the inner cylinder.
  • the concave gear meshes with the male gear.
  • the buoyancy chamber of the inner cylinder forms a closed sealed cavity, thereby pushing the concave gear and the external gear to separate, so that the inner cylinder is along the pulsator
  • the drive shaft rises and then begins to wash.
  • the clutch device of the washing machine disclosed in Patent No. CN98221706. 4 the clutch device is composed of a concave gear and a convex gear, and the washing tub can use the air chamber to move on the pulsator drive shaft under the buoyancy of water, in the laundry
  • the air chamber lifts the washing tub up under the action of water
  • the concave gear at the bottom of the washing tub is disengaged from the protruding gear on the main shaft, and the motor only drives the pulsator for washing
  • the concave gear on the washing tub during dehydration Engages with the male gear on the main shaft and rotates together with the pulsator.
  • the various impurities contained in the garment adhere to the joint of the pulsator drive shaft, affecting the rise and fall of the inner cylinder on the pulsator drive shaft. Summary of the invention
  • the object of the present invention is to solve the technical problem that the transmission structure of the small-sized washing machine is complicated and the volume is difficult to be reduced in the prior art, and a small-sized full-automatic pulsator washing machine is provided, which is capable of fully automatic washing, small size and function for small items. all.
  • Another object of the present invention is to solve the technical problem that the prior art small-sized washing machine has a complicated clutch structure and a difficult volume reduction, and provides a small-sized fully automatic pulsator type washing machine which adopts buoyancy clutching, has a simple structure and is safe and guilty.
  • Still another object of the present invention is to solve the technical problem of complicated and difficult installation of a small-sized washing machine motor in the prior art, and to provide a small-sized fully automatic pulsator type washing machine which is easy to install, saves space, and reduces the overall volume of the washing machine.
  • a further object of the present invention is to provide a fully automatic washing machine having a washing capacity of less than 1 kg, including at least washing, rinsing, and dewatering.
  • the utility model relates to a small automatic wave washing machine, which comprises a box body, a control disc holder body, a base, an outer tube, an inner tube and a motor, wherein the control disc holder body is installed at an upper part of the box body, and the base is installed at a lower part of the box body,
  • the cylinder and the inner cylinder are installed in the casing, wherein the motor is a direct drive motor, and the motor and the bearing seat are installed at the bottom of the outer cylinder, at least the motor is fixed.
  • the device is fixed on the outer cylinder, the motor shaft and the pulsator shaft are connected in the bearing housing, and the inner cylinder and the outer cylinder are provided with a buoyancy clutch device.
  • the bearing seat is provided with a positioning structure matched with the motor and at least partially accommodating the motor to prevent the radial movement of the motor, preferably the positioning structure is at least three positioning plates and / or at least one positioning ring.
  • the positioning plate and/or the positioning ring are disposed on a mounting surface of the bearing seat and the motor, the positioning plate is perpendicular to the mounting surface and
  • the shaft hole of the bearing housing is arranged in a radial symmetry as a virtual center, and the contact surface portion of the positioning plate contacting the motor is provided with a positioning table protruding from the contact surface, and the inner edge of the positioning table is to the axial line of the shaft hole of the bearing housing.
  • the vertical distance is equal to or slightly larger than the radius of the motor
  • the positioning ring is a circular tube or an arc segment concentric with the shaft hole of the bearing housing and the diameter is larger than the diameter of the shaft hole
  • the surface of the motor contacting the bearing seat is provided with
  • the positioning groove is matched with the positioning groove.
  • the positioning circle In order to strengthen the positioning effect of the positioning circle; the positioning circle intersects with the positioning plate and the positioning circle at the intersection is higher than the positioning plate.
  • the fixing surface of the bearing seat contacting the bottom of the outer cylinder is provided with a protective sleeve protruding upward along the circumference of the shaft hole of the bearing seat, and the pulsator shaft passes through the protective sleeve and the motor The shaft is coaxially connected.
  • a skeleton oil seal is arranged in the upper end portion of the protective sleeve, a sleeve is arranged in the lower end of the protective sleeve and the shaft hole of the bearing seat, and a retaining ring is arranged on the pulsator shaft.
  • the retaining ring is located between the skeleton oil seal and the sleeve.
  • the height of the protective cover is greater than the thickness of the bottom of the outer cylinder.
  • an insulation device is arranged between the motor shaft and the pulsator shaft, and the isolation device isolates the direct contact between the motor shaft and the pulsator shaft and the joint structure of the structure and the motor shaft and the pulsator shaft Adapt to each other.
  • the insulation device comprises a sheath having a diameter larger than that of the bearing housing, the jacket being a cylindrical plane and perpendicular to the motor shaft.
  • the fixing device is a fixing belt of a u-shaped structure, the fixing belt comprises two side edges and a pressing side connecting the two sides, and the two sides are respectively fixed by the ends At the bottom of the outer cylinder, the fixing belt presses the motor and the bearing housing against the bottom of the outer cylinder.
  • the motor has a bearing protrusion fixed to the motor shaft on the other side of the motor shaft, and a fixing hole is arranged in a middle portion of the pressing side, and the fixing hole corresponds to the motor bearing protrusion A cushion is disposed between the bearing protrusion and the fixing hole.
  • the buoyancy clutching device on the inner cylinder and the outer cylinder comprises a buoyancy chamber disposed at the bottom of the inner cylinder and a concave gear at the bottom shaft hole of the inner cylinder , installed in the outer tube and inner tube A convex gear on the pulsator shaft.
  • the buoyancy chamber is provided with an inner buoyancy chamber around the pulsator shaft shaft hole, and the inner buoyancy chamber is surrounded by a separating rib integrated with the bottom of the inner cylinder, The buoyancy chamber forms a sealed cavity after the water is injected into the washing machine.
  • the outer circumference of the isolation rib is provided with an isolation ring integral with the bottom of the inner cylinder, and the inner cylinder between the isolation rib and the isolation ring is provided with a water permeable hole, preferably
  • the top of the spacer is protruded from the top of the buoyancy chamber, and the height of the protective sleeve on the bearing seat is greater than the thickness of the bottom of the outer cylinder and the rear portion of the bearing extends into the inner buoyancy chamber.
  • the top end of the inner cylinder is provided with a balance ring
  • the outer cylinder top is provided with an outer cylinder cover
  • a block structure is arranged between the inner cylinder and the top of the outer cylinder
  • the retarding structure comprises a protrusion disposed on the surface of the balance ring, a protrusion provided on the opposite side of the outer cylinder cover and the balance ring, and the protrusion on the balance ring contacts the protrusion on the outer cylinder cover and blocks the inner cylinder after floating on the inner barrel Rotate.
  • the top end of the motor shaft is movably coupled with the contact end of the pulsator shaft, preferably the tooth coupling between the motor shaft and the pulsator shaft or the top end of the motor shaft is an angular polygonal body, wave
  • the contact end of the axle has a matching inner groove with the motor shaft.
  • an insulation device is arranged between the motor shaft and the pulsator shaft, the insulation device is in the shape of a bottle cap, and the joint surface with the motor shaft and the pulsator shaft is disposed at the center of the bottle cap. The structure is matched with the protrusions.
  • the washing machine of the present invention can wash clothes of less than 1 kg under the control of a fully automatic washing program.
  • the invention improves the transmission structure of the existing washing machine, adopts a direct drive motor, and installs the motor through the bearing seat at the bottom of the outer cylinder, removes the components of the motor and the reducer of the ordinary automatic washing machine, and reduces the bottom of the washing machine. Space, which reduces the size of the entire washing machine.
  • the motor shaft of the motor and the pulsator shaft are directly matched and driven in the bearing housing, and the motor shaft and the pulsator shaft are connected by a tooth structure or a polygonal body structure, which can increase the friction between the two and improve the power transmission effect.
  • the intermediate link is reduced, the drive structure is simpler and more convenient, and the bearing seat acts to protect and stabilize the joint.
  • the positioning plate and/or the positioning ring provided on the bearing housing ensure that the motor is quickly installed in place and prevents the motor from moving radially, which improves the stability of the motor.
  • the positioning groove on the motor can be fixed to the positioning ring to improve the fixing effect.
  • the protective sleeve provided on the bearing seat not only provides protection space for the pulsator shaft and the motor shaft, but also prevents the washing water from entering the bearing housing. Installing the bearing and the skeleton oil seal in the protective sleeve can reduce the friction between the motor shaft and the pulsator shaft. .
  • the retaining ring on the pulsator shaft increases the axial stability of the pulsator shaft and shares the weight of the pulsator shaft.
  • the isolation device between the motor shaft and the pulsator shaft prevents water in the outer cylinder from infiltrating into the motor, and also prevents the motor from being leaked to the outer cylinder after being leaked.
  • the structure of the insulating device is matched with the structure of the motor shaft and the pulsator shaft contacting each other, and the insulating device can also avoid the wear of the contact end between the motor shaft and the pulsator shaft.
  • the invention directly fixes the motor and/or the bearing seat to the bottom of the outer cylinder by using the fixing device, reduces the structure for fixing on the motor and the bearing seat, makes the motor installation more convenient, and improves the installation efficiency.
  • the fixing holes provided on the pressing side of the fixing belt not only prevent the motor shaft from being pressed, but also stabilize the motor by using the installed cushion.
  • the invention adopts a buoyancy-controlled clutch structure to control the lifting and lowering of the inner cylinder, reduces a large number of mechanical devices, and correspondingly reduces the failure rate.
  • the protrusions provided on the balance ring of the inner cylinder and the outer cylinder cover of the outer cylinder each other after the inner cylinder is floated, thereby preventing the inner cylinder from rotating, thereby improving the friction effect between the inner cylinder and the clothes.
  • the inner buoyancy chamber consisting of the isolation ribs includes the protective sleeve of the bearing seat, so that the connection between the protective sleeve and the pulsator shaft is located above the water level, thereby avoiding the washing water from entering the protective sleeve from the joint to affect the sealing effect and reducing the skeleton oil seal.
  • the service life also avoids the adhesion of impurities to the pulsator shaft between the top of the protective sleeve and the bottom of the inner cylinder, and reduces the buoyancy effect of the inner cylinder.
  • the spacer can be disposed integrally with the inner cylinder or with the female gear according to the processing needs, and the integral with the inner cylinder can reduce the sealing measures, and the integral with the concave gear makes the installation more flexible.
  • the water permeable hole between the spacer and the spacer can prevent the sealing chamber of the buoyancy chamber from being affected.
  • the invention reduces the volume of the washing machine by reasonable and ingenious arrangement of less structure, and controls the washing amount of the washing machine to be within 1 kg, and realizes full-automatic washing.
  • Figure 1 is a schematic view showing the structure of a small washing machine of the present invention.
  • Figure 2 is a schematic view showing the structure of the fixing belt of the present invention.
  • Fig. 3 is a schematic view showing another structure of the fixing tape of the present invention.
  • Figure 4 is a schematic view showing the structure of the motor of the present invention.
  • Figure 5 is a schematic view showing the structure of the insulating device of the present invention.
  • Figure 6 is a schematic perspective view of the bearing housing of the present invention.
  • Figure 7 is a schematic view showing the structure of the positioning ring on the bearing housing of the present invention.
  • Figure 8 is a schematic view of the support surface of the bearing housing of the present invention.
  • Figure 9 is a cross-sectional view taken along line A-A.
  • Figure 10 is a perspective view showing the three-dimensional structure of the buoyancy chamber at the bottom of the inner cylinder of the present invention.
  • Figure 11 is a bottom plan view of the bottom of the inner cylinder of the present invention.
  • Figure 12 is a schematic view showing the structure of the shock absorbing hanger of the present invention.
  • Figure 13 is a schematic view showing the inner cylinder floating structure of the present invention.
  • the technical solution relates to a small-sized fully automatic pulsator washing machine (hereinafter referred to as a washing machine), which can fully realize the washing, rinsing and dehydrating processes of the laundry under the control of the washing program.
  • the control tray 2 of the washing machine is installed at the top of the washing machine casing 1, and the base 3 is installed at the bottom of the casing 1.
  • the inner cylinder 5 of the washing machine is installed in the outer cylinder 4, and the bottom center of the outer cylinder 4 and the inner cylinder 5 is opened.
  • the coaxial hole through which the pulsator shaft passes, the clutch device is disposed on the outer cylinder 4 and the inner cylinder 5, the inner cylinder 5 is in a buoyancy mode, and the outer cylinder 4 is installed in the casing 1 through the shock absorbing hanger 14, and the motor 6 is used.
  • the direct drive motor as shown in Figures 1, 2, and 3, the motor 6 is mounted on the bottom of the outer cylinder 4 through the bearing housing 11, and the motor 6 and the bearing housing 11 are sequentially superposed on the bottom of the outer cylinder 4, and then the motor 6 or the bearing housing 11 are respectively fixed.
  • a fixed connection structure is not used, and the fixing device mounted on the bottom of the outer cylinder utilizes the motor and/or the bearing housing at the bottom of the outer cylinder, the motor
  • the motor shaft 601 and the pulsator shaft 8 are movably coupled together in the bearing housing.
  • the bearing housing 11 of the present invention is provided with a bearing housing shaft hole 1110, and the rear bearing housing shaft hole 1110 is the same as the shaft hole on the outer cylinder 4 and the inner cylinder 5.
  • a positioning structure is disposed on the bearing housing 11 between the outer cylinder 4 and the motor 6, and the positioning structure is disposed on the mounting surface 1102 where the motor 6 and the bearing housing 11 are in contact with each other, and the positioning structure is used for supporting the motor 6 and preventing the motor from moving radially, positioning
  • the specific structure of the structure is that the positioning plate 1103 is used, and at least three are uniformly arranged on the mounting surface 1102 of the bearing housing 11 so as to be radially arranged along the radial direction of the bearing housing 11 with the shaft hole 1110 of the bearing housing 11 as a virtual center and the mounting surface.
  • the vertical positioning plate 1103, the positioning plate can also be set to 4-6.
  • an upwardly protruding positioning table 1104 is provided, and the inner edge of the positioning table 1104 is to the axis of the bearing housing shaft hole 1110.
  • the vertical distance of the heart line is equal to or slightly larger than the radius of the motor 6, so that when the motor shaft on the motor 6 is inserted into the shaft
  • a bottom surface of the motor 6 is at least partially in contact with the upper edge of the positioning plate 1103, and the positioning table is located outside the motor, so that the positioning table 1104 on each positioning plate limits the motor 6 on the plane.
  • the translation of the direction The bearing housing 11 can be directly fixed to the bottom of the outer cylinder 4 through a fixing hole 1107.
  • the motor 6 can also be fixed directly to the bottom of the outer cylinder 4 or to the outer cylinder 4 by means of a fixing device as described in the following detailed description.
  • FIG. 1, 4, 6, 7, 8, and 9, as an alternative, another specific manner of positioning structure on the bearing housing is: providing a protruding positioning ring 1105 on the mounting surface 1102 of the bearing housing 11
  • the positioning ring 1105 is a hollow tube having the same inner diameter as the inner diameter of the bearing housing.
  • the inner diameter of the positioning ring is larger than the outer diameter of the shaft hole 1110 of the bearing housing and smaller than the diameter of the motor 6, and the corresponding positioning groove 602 is disposed on the motor 6, positioning
  • the groove is concave toward the inside of the motor and the depth corresponds to the height of the positioning ring.
  • the positioning groove 602 on the motor is fastened to the positioning ring 1105 of the bearing housing.
  • Motor snap and translation restrictions As shown in FIG. 7, the positioning ring 1105 may be an incomplete circle, but composed of intermittent curved segments. To enhance the rigidity of the curved segments, reinforcing ribs perpendicular to the mounting surface may be disposed on both sides of the curved segments. 1106.
  • the motor 11 involved in this solution is cylindrical, and the motor shaft extends out of the motor.
  • the positioning structure of the solution includes a positioning plate 1103 and a positioning ring 1105, and the positioning plate 1103 and the positioning ring 1105 are simultaneously disposed on the bearing.
  • the positioning ring 1105 intersects with each positioning plate 1103, and a stable cross is formed at the intersection. This structure enables the positioning plate and the positioning ring to support each other, so that the structure of the entire bearing seat is more robust and positioned.
  • the height of the ring 1105 is higher than the height of the positioning plate, and the height of the positioning ring 1105 corresponds to the depth of the positioning recess 602 on the motor 6.
  • the outer side of the motor is positioned by the positioning table.
  • the 1104 block cannot be translated, and the positioning ring 1105 on the mounting surface 1102 is caught in the positioning groove of the motor.
  • a reinforcing rib 1106 perpendicular to the shaft center is disposed in the positioning ring. This solution makes the entire positioning structure more stable.
  • the present embodiment provides a hollow cylindrical protective sleeve 1108, a protective sleeve 1108 and a bearing, which are outwardly convex on the side of the fixing surface 1101 where the bearing housing 11 and the outer cylinder 4 are in contact.
  • the seat 11 has an integral structure, the top end of the protective sleeve 1108 has an opening, the bottom is connected with the shaft hole of the bearing housing 11, and a sleeve 1109 is disposed inside the protective sleeve 1108 and the bearing housing shaft hole 1110, and one end of the pulsator shaft 8 is covered by the protective sleeve top end.
  • the opening is inserted into the bearing seat, and a skeleton oil seal 1111 is arranged at a contact between the top end of the protective sleeve and the pulsator shaft, and an interference fit between the sleeve 1109 and the pulsator shaft is fixed, and a radial convex is fixed between the skeleton oil seal and the sleeve on the pulsator shaft.
  • the annular retaining ring 1112, the retaining ring 1112 is supported at the top end of the sleeve to prevent the pulsator shaft from coming out of the bearing seat, and at the same time, the radial friction of the pulsator shaft is reduced, and the skeleton oil seal functions as a lubricating pulsator shaft and a sealing protective sleeve.
  • the height of the protective sleeve 1108 is greater than the thickness of the bottom of the outer cylinder 4.
  • the bearing is connected to the pulsator shaft and the motor shaft to reduce the corresponding components on the outer cylinder. In the event of a problem, only the bearing housing needs to be removed to achieve maintenance, which greatly reduces the maintenance workload.
  • the motor shaft 601 of the motor 6 is directly connected to the pulsator shaft 8, and the connecting ends of the two are connected by a movable engagement structure, and the engaged motor shaft 601 can drive the pulsator shaft 8 to rotate in conjunction.
  • FIG. 5 in order to prevent water from leaking into the protective sleeve 1108 and the shaft hole 1110 of the bearing housing 11 during use, and preventing the motor 6 from leaking, it is conducted to the outer cylinder 4 and the inner cylinder 5 through the motor shaft and the pulsator shaft 8,
  • an insulation device 13 is arranged between the motor shaft and the pulsator shaft, and the insulation device 13 is shaped like a bottle cap. As shown in FIG.
  • the solution sets the top end of the motor shaft into a polyhedral shape, and includes a structure in which a triangle, a quadrangle, a pentagon, or a hexagon is added to increase the frictional force when rotated in the radial direction, corresponding thereto.
  • the shape of the contact end of the insulating device and the pulsator shaft is also the same, except that the contact end of the pulsator shaft is an inner groove structure.
  • the insulating device 13 can be placed in the inner groove of the pulsator shaft or can be placed on the top end of the motor shaft, and then three They are plugged together in turn.
  • the insulating device is made of an insulating material and has a thickness of between 2 and 2.5 mm, preferably 2.2 mm.
  • the isolation device can not only isolate the motor shaft after installation.
  • the contact of the 601 with the pulsator shaft 8 can also isolate the contact between the two and the sleeve 1109, thereby improving the safety factor of the washing machine, and the sheath 1301 can also prevent the downstream of the outer cylinder from leaking down the pulsator shaft. The washing water is blocked from the interface between the motor shaft and the motor to avoid entering the inside of the motor.
  • the fixing device for fixing the motor 6 and/or the bearing housing 11 to the bottom of the outer cylinder 4 is a U-shaped fixing belt 7, and the fixing belt 7 includes two side edges 701 and a connecting side edges 701. Pressing the pressing edge 702 of the motor, the fixing belt is made of a material with a certain hardness, such as iron, steel, hard plastic, etc., the motor 6 is a direct drive motor, and the side edges 701 are respectively fixed to the outer cylinder 4 through the ends.
  • the bottom side, the pressing side 702 is provided with a fixing hole, and the other side of the motor opposite to the motor shaft has a bearing protrusion fixed at the rear end of the motor shaft, and the fixing hole is located opposite to the position of the bearing protrusion, and the fixing belt 7 fixes the motor 6 and
  • the bearing housing 11 is pressed against the bottom of the outer cylinder 4.
  • a fixing hole 703 is disposed on the pressing side 702, and the fixing hole 703 corresponds to the bearing protrusion, and a seal is installed between the bearing protrusion and the fixing hole for sealing and
  • the shock-absorbing cushion and the cushion also facilitate the balancing work of the motor.
  • the two ends of the fixed belt are fixed to the bottom of the outer cylinder 4 by bolts during installation.
  • the fixing belt can be made of metal with a certain strength to achieve a fixing effect.
  • the clutch device of the present invention comprises a concave gear 9 mounted at the bottom shaft hole of the inner cylinder, and a male gear 10 mounted on the pulsator shaft between the outer cylinder and the inner cylinder, in the inner cylinder 5, a bottom recessed cylinder is arranged at the bottom to form a buoyancy chamber 501.
  • the concave gear meshes with the convex gear.
  • the buoyancy chamber 501 of the inner cylinder is under air pressure.
  • a closed sealed chamber is formed to push the inner cylinder up along the pulsator shaft, at which time the female gear 9 and the male gear 10 are separated, and the washing machine enters a washing state.
  • An inner buoyancy chamber 502 is disposed in the buoyancy chamber 501.
  • the inner buoyancy chamber is formed by a spacer 505.
  • the spacer is a tubular structure and is disposed around the inner concave gear 9 and coaxial with the concave gear, and is disposed at the periphery of the spacer.
  • the spacer ring is also a tubular structure and forms a separate enclosed space with the spacer rib.
  • the water permeable to the bottom of the inner tube is provided in a separate space formed between the spacer 505 and the spacer ring 503.
  • the hole 504 is used for the exchange and circulation of the washing water between the inner cylinder and the outer cylinder during washing.
  • the spacer 505 forms a closed chamber around the concave gear 9.
  • the closed chamber forms an inner buoyancy chamber 502 after the inner cylinder 5 is connected with the pulsator shaft 8, and a buoyancy chamber 501 is formed between the spacer ring 503 and the recessed cylinder at the bottom of the inner cylinder.
  • the buoyancy chamber 501 and the inner buoyancy chamber 502 collectively generate buoyancy under the push of the wash water to cause the inner cylinder 5 to float.
  • the spacer 505 can be integrally formed with the concave gear 9, that is, a concentric and vertical hollow tube is disposed on the circumference of the inner concave gear, and the structure can be installed at the bottom of the inner cylinder while the concave gear is mounted. An internal buoyancy chamber is formed.
  • the spacer 505 can also be integrated with the bottom of the inner cylinder. This structure can be integrally formed with the inner cylinder, and the process is simple.
  • the present embodiment is provided with a balance on the surface of the balance ring 506 at the top end of the inner cylinder 5.
  • a protrusion 507 on the surface of the ring the protrusion may be strip or block and evenly distributed on the surface of the balance ring, and an outer cylinder cover 402 is mounted on the top of the outer cylinder 4, the outer cylinder cover is annular and extends to the center of the circle, in the outer cylinder
  • the opposite side of the cover and the balance ring is provided with the same protrusion 507 on the balance ring.
  • the buoyancy chamber and the inner buoyancy chamber at the bottom of the inner tube use the buoyancy of water to float the inner tube, and at the bottom of the inner tube
  • the concave gear 9 is disengaged from the protruding gear 10 on the pulsator shaft.
  • the balance ring on the inner cylinder contacts the outer cylinder cover, and the protrusion on the balance ring and the inner side of the outer cylinder cover are convex. Blocking each other prevents the inner cylinder from rotating.
  • the rotation of the pulsator shaft 8 only drives the pulsator 12 in the inner cylinder to rotate.
  • This embodiment has a simple structure and is convenient to set up.
  • the height of the protective cover after installation is At least the top end is located in the sealed cavity of the inner buoyancy chamber 502 to prevent the washing water from contacting the pulsator shaft between the crown gear 10 and the female gear 9 and the top end of the protective sleeve, thereby preventing the impurities contained in the washing water from sticking. Attached to the pulsator shaft and into the protective sleeve to ensure the normal lifting of the inner cylinder and extend the service life of the skeleton oil seal.
  • the height of the spacer 505 is adjusted to ensure that the sealing cavity formed by the spacer 505 can cover the top end of the protective sleeve 1108 when the inner cylinder is floated to the washing position. Therefore, the end face of the spacer rib needs to be higher than the end face of the inner cylinder buoyancy chamber 501 to increase the air in the inner buoyancy chamber.
  • the two sealed chambers of the buoyancy chamber 501 and the inner buoyancy chamber 502 at the bottom of the inner cylinder simultaneously push the inner cylinder 5 to float, and the water permeable hole 504 circulates the washing water between the inner cylinder and the outer cylinder, thereby reducing The resistance of the inner cylinder is received.
  • the top end of the protective sleeve 1108 is located in the sealing cavity of the inner buoyancy chamber and protrudes out of the washing water surface, thereby preventing the washing water from being protected. The top of the sheath enters the protective sleeve to achieve a waterproof effect.
  • the washing machine of the present scheme adopts a shock absorbing manner of a shock absorbing boom
  • the shock absorbing hanger 14 includes a boom 1401, and the upper ball seat 1402 at the top end of the boom is connected in series with the lower ball on the boom.
  • the seat 1403, the spring 1404, and the spring seat 1405 are provided with a hanger corresponding to the concave and convex portion of the upper ball seat 1402 in the top of the casing 1 of the washing machine, and a concave portion corresponding to the lower spherical seat portion is disposed on the side surface of the outer cylinder 5
  • the shock absorbing seat 401 wherein the hanging seat and the damper seat respectively have a fracture having a diameter larger than the diameter of the hanger 1401, and the contact surface of the suspension seat and the upper ball seat and the contact surface of the shock absorbing seat and the lower ball seat respectively are curved surfaces corresponding to the concave and convex portions
  • the boom 1401 is cut into the fracture, and the upper and lower seats are respectively attached to the suspension and the shock absorber under the gravity of the inner and outer cylinders, and the upper and lower balls are fitted together.
  • the seat seals the break, preventing the boom from coming out.
  • a tapered tube 1406 protruding outward is arranged at the shaft hole of the lower ball seat and the damper seat, and the diameter of the tapered tube is larger than the diameter of the fracture, so that only The distance between the ball seat and the damper seat does not exceed the length of the conical tube, and the boom will not be dislodged from the fracture.
  • a shock absorbing hanger is respectively installed on the four corners of the washing machine box, and the outer cylinder is in a relatively floating equilibrium position in the box body under the pulling force of the shock absorbing boom, and the outer cylinder and the box body are prevented. Collision.
  • the working process of the washing machine of the present scheme is as follows: The laundry within 1 kg of the washing amount to be washed is put into the washing machine, the washing machine starts the washing process under the control of the automatic washing program, the water is filled in the washing machine, and the buoyancy chamber at the bottom of the inner cylinder during the water filling process And the buoyancy chamber pushes the inner cylinder to rise along the pulsator shaft under the buoyancy of water.
  • the inner concave gear at the bottom of the inner cylinder is separated from the outer convex gear on the pulsator shaft, and the inner cylinder rises to a certain height, and the inner cylinder balances at the top.
  • the ring is in contact with the outer cylinder cover at the top of the outer cylinder, and the protrusions of the two are in contact with each other.
  • the washing starts.
  • the motor shaft of the motor directly drives the pulsator shaft to rotate, thereby driving the pulsator to wash the laundry.
  • the inner cylinder is in a relatively static state under the convex barrier of the balance ring and the outer cylinder cover, and the protective sleeve on the bearing seat extends into the inner buoyancy chamber, thereby avoiding the stain of the washing water entering the protective sleeve and the washing water.
  • the washing machine drains. After the inner cylinder loses buoyancy, it descends along the pulsator shaft. Finally, the concave gear on the inner cylinder meshes with the convex gear on the pulsator shaft. At this time, the dehydration program is started, and the convexity fixed on the pulsator shaft is fixed. The gear rotates the inner cylinder by the concave gear to achieve dewatering of the clothes.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Description

说 明 书 一种小型全自动波轮洗衣机
技术领域
本发明涉及洗衣机领域， 具体涉及一种体积小、 功能全且可实现全自动洗涤的波轮式 洗衣机。 背景技术
普通家用全自动洗衣机的洗涤容量一般都在; Γ6公斤左右， 在洗涤小件衣物时很不方便， 不经济不划算。 现在出现一些小型洗衣机， 能够洗涤袜子、 婴儿衣服等小件衣物， 但是这些 小型洗衣机由于无法直接采用原普通全自动洗衣机上的一些结构， 只能实现普通全自动洗衣 机的洗涤功能， 不能同时实现漂洗和脱水， 而实现同时洗涤和脱水的全自动工作方式又不能 减少洗衣机的体积， 因此现在社会上缺少体积小而又能实现全自动洗涤的小型洗衣机。
小型洗衣机对体积和容量有严格的要求。 现有的波轮洗衣机有采用直驱式电机的， 直 接将电机安装在洗衣机的外筒底部， 利用电机驱动轴带动波轮驱动轴工作， 这样洗衣机的 体积虽然减少， 但底部空间很狭窄， 无法安装排水泵、 水位传感器等部件。 另外， 现有技 术中洗衣机的电机都是采用螺栓、 螺钉与外筒固定连接方式， 而小型洗衣机， 由于内部空 间狭小， 采用上述固定方式容易出现螺孔不易对准等难题， 安装不便。
如公开号为 CN1375593A的专利文件公开一种小型洗衣机， 其将电机与洗涤筒分离， 电机安装在一个空腔内， 电机轴向下利用传动装置驱动一侧的洗涤筒， 洗涤筒可以自由取 下， 此洗衣机只能实现洗涤和漂洗功能， 由于只有一个洗涤筒， 无法实现脱水功能。
公开号为 CN201151827Y的专利文件中， 公开一种新型直驱离合的洗衣机， 洗衣机采 用浮力式工作方式， 电机采用直驱式电机， 电机轴与波轮轴直接连接， 电机设置在外筒的 底部， 通过中间装置与外筒安装在一起， 电机与中间装置之间固定需要螺栓或螺钉， 增加 了固定难度。
公开号为 CN201217747Y的专利文件中， 公开一种新型洗衣机直接驱动装置， 电机通 过减速器安装在洗衣机上， 减速器的输出轴作为波轮轴， 电机轴与减速器连接后就间接驱 动了波轮轴， 此方案在电机与洗衣机外筒之间设置减速器， 造成连接结构复杂， 各部件之 间需要稳定的传动， 故障率高。
在实际工作中， 电机组装不良、 部件磨损、 线路老化、 使用环境湿度大等原因都会出 现电机漏电情况， 由于电机驱动轴与波轮驱动轴都是金属材料， 因此漏电会传导到洗衣机 内筒中， 造成洗衣机带电， 对用户造成触电危险。
在现有技术中有一类浮力式结构的洗衣机， 此类洗衣机工作时内筒的升降靠水的浮力 进行控制， 因此洗涤容量较小， 其结构如下： 在洗衣机的内筒底部有一个浮力室， 内筒底 部中间通过封闭轴承套在波轮驱动轴上， 洗衣机的离合装置由安装在密封轴承外围的内凹 齿轮， 安装在外筒与内筒之间波轮驱动轴上的外凸齿轮组成， 在脱水或不使用时， 内凹齿 轮与外凸齿轮啮合， 在洗涤注水时， 内筒的浮力室会形成一个封闭的密封腔， 从而推动内 凹齿轮和外凸齿轮分开， 使内筒沿波轮驱动轴上升， 然后开始洗涤。
如专利号为 CN98221706. 4中公开的一种洗衣机的离合装置， 离合装置由内凹齿轮和外 凸齿轮组成， 洗衣桶利用气室在水的浮力下可在波轮驱动轴上运动， 在洗衣时， 气室在水 的作用下将洗衣桶向上浮起， 使洗衣桶底部的内凹齿轮脱离主轴上的外凸齿轮， 电机仅驱 动波轮进行洗涤， 在脱水时洗衣桶上的内凹齿轮与主轴上的外凸齿轮啮合而与波轮一同旋 转。 衣物中含有的各种杂质会粘附到波轮驱动轴的连接处， 影响内筒在波轮驱动轴上的升 降。 发明内容
本发明的目的在于解决现有技术中小型洗衣机传动结构复杂、 体积难以减小的技术问 题， 提供一种小型全自动波轮式洗衣机， 该洗衣机针对小件物品进行全自动洗涤、 体积小 且功能全。
本发明的另一目的在于解决现有技术中小型洗衣机离合结构复杂、 体积难以减小的技 术问题， 提供一种小型全自动波轮式洗衣机， 该洗衣机采用浮力离合， 结构简单、 安全可 罪。
本发明的再一目的在于解决现有技术中小型洗衣机电机安装复杂、 困难的技术问题， 提供一种小型全自动波轮式洗衣机， 该洗衣机电机安装容易、 节省空间、 降低了洗衣机的 整体体积。
本发明的另外的目的在于提供洗涤容量在 1公斤以下的， 至少包括洗涤、 漂洗、 脱水 的全自动洗衣机。
为了实现上述目的， 本发明采用的具体方案如下：
一种小型全自动波轮洗衣机， 包括箱体、 控制盘座本体、 底座、 外筒、 内筒和电机， 所述控制盘座本体安装在箱体的上部， 底座安装在箱体的下部， 外筒和内筒安装在箱体内， 其特征在于， 所述电机为直驱式电机， 电机与轴承座安装在外筒底部， 至少电机通过固定 装置固定在外筒上， 电机轴与波轮轴在轴承座内连接，内筒与外筒上设置有浮力离合装置。 为配合电机与轴承座的快速安装和相互定位； 所述轴承座上设置有与电机配合的至少 部分容纳电机以防止电机径向移动的定位结构， 优选所述定位结构为至少三个定位板和 /或 至少一个定位圈。
为加强电机与轴承座的定位效果及提高轴承座上定位结构的稳定性； 所述定位板和 /或 定位圈设置在轴承座与电机配合的安装面上， 所述定位板垂直于安装面且以轴承座的轴孔 为虚拟中心呈辐射状对称排列， 定位板与电机接触的接触面部分设置有凸出于接触面的定 位台， 定位台的内边缘至轴承座轴孔的轴心线的垂直距离等于或稍大于电机的半径， 所述 定位圈为与轴承座的轴孔同心的圆管或者弧形段且直径大于轴孔直径， 所述电机与轴承座 相接触的面上设置有与定位圈相配合的定位凹槽。
为强化定位圈的定位效果； 所述定位圈与定位板相交且相交处定位圈高于定位板。 为加强轴承座与外筒之间的密封和利于安装； 轴承座与外筒底部接触的固定面上设置 有沿轴承座的轴孔圆周向上凸出的保护套， 波轮轴穿过保护套与电机轴同轴连接。
为提高轴承座的密封效果和波轮轴的旋转效果； 所述保护套的上端部内设置有骨架油 封， 保护套的下端和轴承座的轴孔内设置有轴套， 波轮轴上设置有挡圈， 挡圈位于骨架油 封和轴套之间。
为提高保护套的防水效果； 所述保护套的高度大于外筒底部的厚度。
为减少电机轴与波轮轴之间的漏电传导； 所述电机轴与波轮轴之间设置有隔绝装置， 隔绝装置隔绝电机轴和波轮轴的直接接触且结构与电机轴和波轮轴的接合面结构相互适 应。
为避免电机受漏水影响； 隔绝装置包括一个直径大于轴承座的轴孔的护套， 护套为圆 柱形平面且垂直于电机轴。
为减少电机与外筒之间固定部件； 所述固定装置为 u形结构的固定带， 所述固定带包 括两个侧边和连接两侧边的压紧边， 两侧边通过端头分别固定在外筒底部， 固定带将电机 和轴承座压固在外筒底部。
为提高固定带与电机的固定效果； 所述电机相对电机轴的另一面有固定电机轴的轴承 凸出部， 所述压紧边的中部设置有固定孔， 固定孔与电机轴承凸出部对应， 轴承凸出部与 固定孔之间设置有减震垫。
为减少内筒与外筒之间离合部件， 进而减少洗衣机的体积； 所述内筒与外筒上的浮力 离合装置包括设置在内筒底部的浮力室、 内筒底部轴孔处的内凹齿轮、 安装在外筒与内筒 之间波轮轴上的外凸齿轮。
为避免波轮轴与洗涤水的接触， 减少内筒升降的摩擦； 所述浮力室内环绕波轮轴轴孔 设置有内浮力室， 所述内浮力室由与内筒底部一体的隔离筋环绕构成， 内浮力室在洗衣机 注水后形成一个密封腔。
为提高内筒与外筒之间洗涤水的交换； 所述隔离筋的外围设置有与内筒底部一体的隔 离圈， 隔离筋和隔离圈之间的内筒上设置有透水孔， 优选所述隔离筋的顶部突出于浮力室 的顶部， 所述轴承座上保护套的高度大于外筒底部的厚度且安装后部分伸入内浮力室。
为避免内筒随波轮旋转影响洗涤效果； 所述内筒的顶端设置有平衡环， 外筒顶端设置 有外筒盖， 在内筒与外筒的顶部之间设置有阻滞结构， 所述阻滞结构包括设置在平衡环表 面的凸起、 外筒盖与平衡环相对一面设置的凸起， 平衡环上的凸起在内桶上浮后与外筒盖 上的凸起相互接触并阻挡内筒旋转。
为了提高电机轴与波轮轴的传动效果；所述电机轴的顶端与波轮轴的接触端活动联接， 优选电机轴和波轮轴之间为齿联接或者电机轴的顶端为带棱角的多边体， 波轮轴的接触端 与电机轴有相配合的内凹槽。
为避免传动轴与电机轴之间漏电传导； 所述电机轴与波轮轴之间设置有隔绝装置， 隔 绝装置为一瓶盖状， 瓶盖的中心处设置有与电机轴和波轮轴的接合面结构相互配合的凸起。
采用上述结构后， 本发明的洗衣机可以在全自动洗涤程序控制下洗涤 1公斤以下的衣 物。
本发明所带来的有益效果如下：
本发明改进了现有洗衣机的传动结构， 采用了直驱式电机， 并将电机通过轴承座安装 在外筒的底部， 去除了普通全自动洗衣机的电机、 减速器等部件， 减小了洗衣机得底部空 间， 縮小了整个洗衣机的体积。 电机的电机轴与波轮轴在轴承座内直接配合驱动， 电机轴 与波轮轴之间利用齿结构或多边体结构相互配合的方式连接， 能够增大两者之间的摩擦， 提高动力传输效果， 减少了中间环节， 驱动结构更加简单方便， 而且轴承座起到了保护和 稳定接头的作用。 在轴承座上设置的定位板和 /或定位圈， 保证了电机快速安装到位且防止 电机径向移动， 提高了电机的稳定性。 电机上的定位凹槽可以与定位圈形成相互固定， 提 高了固定效果。 在轴承座上设置的保护套， 不但给波轮轴和电机轴提供了保护空间， 还防 止了洗涤水进入轴承座内， 在保护套内安装轴承和骨架油封能够减小电机轴和波轮轴的摩 擦。 波轮轴上的挡圈能够提高波轮轴的轴向稳定性并分担波轮轴的重量。 在电机轴与波轮 轴之间设置的隔绝装置可以防止外筒内的水渗入电机， 也可以防止电机漏电后传导到外筒， 隔绝装置的结构与电机轴和波轮轴相互接触端的结构相配合， 隔绝装置还能够避免电机轴 与波轮轴接触端的磨损。
本发明利用固定装置直接将电机和 /或轴承座固定在外筒底部，减少了电机和轴承座上 用于固定的结构， 使得电机安装更加方便， 提高了安装效率。 在固定带压紧边上设置的固 定孔不但避免了压迫电机轴， 而且利用安装的缓冲垫还可以稳定电机。
本发明采用浮力控制的离合结构来控制内筒的升降， 减少了大量的机械装置， 也相应 的降低了故障率。 在内筒的平衡环和外筒的外筒盖上设置的凸起在内筒上浮后两者相互阻 挡， 防止了内筒旋转， 提高了内筒与衣物的摩擦效果。 由隔离筋组成的内浮力室将轴承座 的保护套包含在内， 使保护套与波轮轴的连接处位于水位上方， 避免了洗涤水从连接处进 入保护套内影响密封效果及降低骨架油封的寿命， 同时也避免了保护套上方与内筒底部之 间的波轮轴粘附杂质， 降低内筒的浮力效果。 可以根据加工需要将隔离筋设置成与内筒一 体或与内凹齿轮一体， 与内筒一体可以减少密封方面的措施， 与内凹齿轮一体使得安装上 更加灵活。 隔离圈和隔离筋之间的透水孔能够避免浮力室的密封腔受到影响。
本发明通过较少结构的合理巧妙布置， 减少了洗衣机的体积， 使洗衣机的洗涤量控制 在 1公斤以内， 而且实现了全自动洗涤。 附图说明
图 1 本发明小型洗衣机的结构示意图。
图 2本发明固定带结构示意图。
图 3 本发明固定带的另一种结构示意图。
图 4本发明的电机结构示意图。
图 5 本发明的隔绝装置结构示意图。
图 6 本发明轴承座的立体结构示意图。
图 7 本发明轴承座上定位圈为弧形段的结构示意图。
图 8 本发明轴承座的支撑面示意图。
图 9 图 9所示的 A-A剖视图。
图 10 本发明的内筒底部浮力室立体结构示意图。
图 11本发明的内筒底部仰视图。
图 12本发明减震吊杆结构示意图。
图 13 本发明中内筒止浮结构示意图。 附图标记说明 :1-箱体、 101-吊座、 2-控制盘座本体、 3-底座、 4-外筒、 401-减震座、 402- 外筒盖、 5-内筒、 501-浮力室、 502-内浮力室、 503-隔离圈、 504-透水孔、 505-隔离筋、 506- 平衡环、 507-凸起、 6-电机、 601-电机轴、 602-定位凹圈、 7-固定带、 701-侧边、 702-压紧边、 703-固定孔、 8-波轮轴、 9-内凹齿轮、 10-外凸齿轮、 11-轴承座、 1101-固定面、 1102-安装面、 1103-定位板、 1104-定位台、 1105-定位圈、 1106-加强筋、 1107-固定孔、 1108-保护套、 1109- 轴套、 1110-轴承座轴孔、 1111-骨架油封、 1112-挡圈、 12-波轮、 13-隔绝装置、 1301-护套、 14-减震吊杆、 1401-吊杆、 1402-上球座、 1403-下球座、 1404-弹簧、 1405-弹簧座、 1406-锥 形管。 具体实施方式
以下根据附图对本方案的洗衣机做进一步的说明。
如图 1所示， 本技术方案涉及的一种小型全自动波轮洗衣机 （以下简称洗衣机）， 洗衣 机在洗涤程序的控制下能够全自动实现衣物的洗涤、 漂洗和脱水过程。 在洗衣机箱体 1 的 顶端安装洗衣机的控制盘座 2， 在箱体 1的底部安装底座 3， 洗衣机的内筒 5安装在外筒 4 内， 外筒 4和内筒 5的底部中心位置开有供波轮轴穿过的同轴孔， 在外筒 4和内筒 5上设 置有离合装置， 内筒 5采用浮力式工作方式， 外筒 4通过减震吊杆 14安装在箱体 1内， 电 机 6采用直驱式电机， 如图 1、 2、 3所示， 电机 6通过轴承座 11安装在外筒 4底部， 电机 6、 轴承座 11依次叠加在外筒 4的底部， 然后电机 6或轴承座 11分别固定在外筒的底部， 或者电机 6和 /或轴承座 11与外筒之间不采用固定连接结构，而靠安装在外筒底部的固定装 置利用将电机和 /或轴承座固定在外筒的底部， 电机的电机轴 601与波轮轴 8在轴承座内活 动连接在一起。
如图 1、 6、 7、 8、 9所示， 本发明的轴承座 11轴心设置有轴承座轴孔 1110， 安装后轴 承座轴孔 1110与外筒 4、 内筒 5上的轴孔同轴心。在外筒 4与电机 6之间的轴承座 11上设 置有定位结构， 定位结构设置在电机 6与轴承座 11接触的安装面 1102上， 定位结构用于 支撑电机 6并防止电机径向移动， 定位结构的具体方式是采用定位板 1103， 在轴承座 11的 安装面 1102上均匀设置至少三个以轴承座 11的轴孔 1110为虚拟中心沿轴承座 11的半径 方向呈辐射状排列且与安装面垂直的定位板 1103， 定位板也可以设置成 4-6个， 在定位板 与电机的接触面外侧， 设置向上凸起的定位台 1104， 定位台 1104 的内边缘至轴承座轴孔 1110的轴心线的垂直距离等于或稍大于电机 6的半径， 这样， 当电机 6上的电机轴插入轴 承座 11的轴孔 1110内时， 电机 6的一个底面至少部分和定位板 1103的上边缘接触， 定位 台位于电机外侧，这样各定位板上的定位台 1104就限制了电机 6在平面上各个方向的平移。 轴承座 11可以通过固定孔 1107直接固定在外筒 4的底部。 电机 6 也可以直接固定在外筒 4的底部， 或者通过下面具体实施方式描述的固定装置与外筒 4连接。
如图 1、 4、 6、 7、 8、 9所示， 作为一种选择， 轴承座上定位结构的另一种具体方式是： 在轴承座 11的安装面 1102上设置凸出的定位圈 1105，定位圈 1105是与轴承座的内径同圆 心的空心管， 定位圈的内径大于轴承座的轴孔 1110的外径且小于电机 6的直径， 在电机 6 上设置对应的定位凹槽 602， 定位凹槽凹向电机内部且深度与定位圈的高度对应， 在安装时 电机轴 601插入轴承座 11的轴孔 1110内， 电机上的定位凹槽 602扣合在轴承座的定位圈 1105上， 实现电机的卡合及平移限制。 如图 7所示， 定位圈 1105可以是一个不完整的圆， 而是由间断的弧形段组成， 为增强弧形段的牢固， 可在弧形段两侧设置与安装面垂直的加 强筋 1106。 本方案所涉及的电机 11为圆柱形， 电机轴伸出电机外。
也可以在电机上设置凸出的定位圈， 而在轴承座的安装面上设置内凹的定位凹槽。 如图 1、 4、 6、 7、 8、 9所示， 在上述具体实施方式的基础上， 本方案的定位结构包括 定位板 1103和定位圈 1105， 定位板 1103和定位圈 1105同时设置在轴承座的安装面 1102 上， 定位圈 1105与每个定位板 1103相交， 相交处形成稳定的十字交叉， 此结构使定位板 和定位圈两者形成互相支持， 使整个轴承座的结构更加结实， 定位圈 1105的高度高出定位 板的高度， 定位圈 1105高出的高度与电机 6上的定位凹圈 602深度对应， 当电机轴 601插 入轴承座的轴孔 1110内时， 电机的外侧被定位台 1104挡住不能平移， 安装面 1102上的定 位圈 1105卡入电机的定位凹槽内。 为加强定位圈和轴承座的强度， 在定位圈内设置垂直于 轴心的加强筋 1106。 本方案使整个定位结构更加稳定。
如图 1、 6、 7、 8、 9所示， 本方案在轴承座 11与外筒 4接触的固定面 1101—侧上设 置向外凸出的空心圆柱形保护套 1108， 保护套 1108与轴承座 11为一体结构， 保护套 1108 的顶端有开口， 底部与轴承座 11的轴孔连接， 在保护套 1108与轴承座轴孔 1110内部设置 有轴套 1109， 波轮轴 8的一端由保护套顶端的开口插入轴承座内， 保护套的顶端与波轮轴 接触处设置有骨架油封 1111， 轴套 1109与波轮轴之间过盈配合， 在波轮轴上骨架油封与轴 套之间固定有径向凸出的环状挡圈 1112，挡圈 1112支撑在轴套顶端以防止波轮轴脱出轴承 座， 同时还能起到减小波轮轴径向摩擦的效果， 骨架油封起到润滑波轮轴和密封保护套的 作用。 保护套 1108的高度大于外筒 4底部的厚度， 轴承座固定到外筒上后， 保护套从外筒 底部的轴孔中穿过进入外筒内部， 保护套与外筒轴孔在固定后形成防水密封状态。 利用轴 承座连接波轮轴和电机轴， 减少外筒上的相应部件， 在出现问题时， 仅需要卸下轴承座即 可实现维修， 大大减少了维修工作量。
如图 1所示， 电机 6的电机轴 601直接与波轮轴 8连接， 两者的连接端采用活动卡合 结构， 卡合后的电机轴 601能够带动波轮轴 8进行连动旋转。 如图 5所示， 为防止使用时 水泄露进入保护套 1108和轴承座 11的轴孔 1110内， 并防止电机 6漏电而通过电机轴、 波 轮轴 8传导到外筒 4和内筒 5中， 本方案在电机轴与波轮轴之间设置一个隔绝装置 13， 隔 绝装置 13形状类似瓶盖状。 如图 4所示， 本方案将电机轴的顶端设置成多面体形状， 包括 三角形、 四边形、 五边形或六边形等卡合后在径向旋转时能够增加摩擦力的结构， 与之对 应的隔绝装置、 波轮轴接触端的形状也与其相同， 只是波轮轴接触端为内凹槽结构， 安装 时隔绝装置 13可以置入波轮轴的内凹槽内也可以套在电机轴的顶端， 再将三者依次插接在 一起。 隔绝装置采用绝缘材料制成， 其厚度在 2~2.5mm之间， 优选为 2.2mm。
为避免轴套 1109成为漏电传导路径， 如图 5所示， 优选在隔绝装置 13的一端根据轴 套 1109 的大小制作一个径向延伸的护套 1301， 这样隔绝装置安装后， 不但能隔绝电机轴 601与波轮轴 8的接触， 还能够隔绝两者与轴套 1109的接触， 提高了洗衣机的安全系数， 同时护套 1301还可以防止由于外筒密封不严漏水时， 将顺着波轮轴下流的洗涤水挡在电机 轴与电机的接口外， 避免进入电机内部。
如图 1、 2、 3所示， 固定电机 6和 /或轴承座 11到外筒 4底部的固定装置采用 U形固 定带 7， 固定带 7包括两个侧边 701和连接两侧边 701并压紧电机的压紧边 702， 固定带由 带有一定硬度的材料制成， 如铁、 钢、 硬塑料等， 电机 6采用直驱式电机， 两侧边 701通 过端头分别固定在外筒 4底部， 压紧边 702上设置有固定孔， 电机相对电机轴的另一面上 有固定电机轴后端的轴承凸出部， 固定孔的位置与轴承凸出部位置相对， 固定带 7将电机 6 和轴承座 11压固在外筒 4底部。 为提高固定带 7与电机 6的接触效果， 在压紧边 702上设 置一个固定孔 703， 固定孔 703与轴承凸出部对应， 在轴承凸出部与固定孔之间安装一个用 于密封和减震的减震垫， 减震垫同时也利于电机的平衡工作， 安装时将固定带两个侧边的 端头利用螺栓固定在外筒 4底部。 固定带可以采用带一定强度的金属以实现固定效果。
如图 1、 10、 11所示， 本发明的离合装置包括安装在内筒底部轴孔处的内凹齿轮 9， 安 装在外筒与内筒之间波轮轴上的外凸齿轮 10， 在内筒 5底部设置一个开口向下的凹筒， 形 成一个浮力室 501， 洗衣机在脱水或不使用时， 内凹齿轮与外凸齿轮啮合， 在洗涤注水时， 内筒的浮力室 501 在空气压力下会形成一个封闭的密封腔， 推动内筒沿波轮轴上升， 此时 内凹齿轮 9和外凸齿轮 10分开， 洗衣机进入洗涤状态。 在浮力室 501内设置有一个内浮力室 502， 内浮力室由隔离筋 505构成， 隔离筋为管 状结构并设置在内凹齿轮 9的周围与内凹齿轮同轴心， 在隔离筋的外围设置有隔离圈 503， 如图 11所示， 隔离圈同样为管状结构并与隔离筋形成一个独立的封闭空间， 在隔离筋 505 和隔离圈 503之间形成的独立空间内设置贯穿内筒底部的透水孔 504，透水孔用于洗衣时内 筒与外筒之间洗涤水的交换和流通。 隔离筋 505围绕内凹齿轮 9形成一个封闭室， 此封闭 室在内筒 5与波轮轴 8连接后就形成内浮力室 502，隔离圈 503与内筒底部的凹筒之间形成 浮力室 501， 浮力室 501和内浮力室 502在洗涤水的推动下共同产生浮力使内筒 5上浮。
本方案中隔离筋 505可以与内凹齿轮 9设置成一体， 即在内凹齿轮的圆周上设置同轴 心且垂直的空心管， 此结构可以在安装内凹齿轮的同时， 在内筒的底部就形成一个内浮力 室。 隔离筋 505也可以与内筒底部设置成一体， 此结构可以与内筒一体加工成型， 工艺简 单。
如图 13所示，为防止内筒 5上升后与波轮 12同步旋转，降低衣服与内筒内壁的摩擦， 影响洗涤效果， 本方案在内筒 5顶端的平衡环 506表面设置凸出于平衡环表面的凸起 507， 凸起可以是条状或块状并均匀分布在平衡环的表面上，在外筒 4的顶部安装外筒盖 402， 外 筒盖为环状且向圆心延伸， 在外筒盖与平衡环相对的一面上设置有平衡环上同样的凸起 507， 洗衣机在洗衣时， 内筒底部浮力室和内浮力室利用水的浮力使内筒浮起， 此时内筒底 部的内凹齿轮 9与波轮轴上的外凸齿轮 10脱离， 内筒在上浮到一定高度后， 内筒上的平衡 环会与外筒盖接触， 平衡环上的凸起与外筒盖内侧面的凸起相互阻挡， 防止了内筒旋转， 此时波轮轴 8的转动仅带动内筒内的波轮 12旋转， 本方案结构简单、 设置方便。
如图 1、 6、 7、 8、 9、 10、 11所示， 在上述具体实施方式的基础上， 为防止洗涤水由 保护套 1108的顶端进入骨架油封 1111 内， 因此安装后保护套的高度最少要使顶端位于内 浮力室 502的密封腔内， 以阻止洗涤水与外凸齿轮 10和内凹齿轮 9之间的波轮轴及保护套 的顶端接触， 这样可防止洗涤水中所含有的杂质粘附到波轮轴上和进入保护套内， 保证内 筒的正常升降和延长骨架油封的使用寿命。本方案根据内凹齿轮 9和外凸齿轮 10安装的位 置调整隔离筋 505的高度， 以保证内筒上浮到洗涤位置时， 隔离筋 505所形成的密封腔能 够将保护套 1108的顶端包含在内， 因此隔离筋的端面需要高出内筒浮力室 501的端面， 以 增加内浮力室内的空气。
在工作时， 往洗衣机内注水， 内筒底部的浮力室 501和内浮力室 502两个密封腔同时 推动内筒 5上浮， 透水孔 504使内筒与外筒之间的洗涤水进行流通， 降低了内筒受到的阻 力， 此时保护套 1108的顶端位于内浮力室的密封腔内并伸出洗涤水面， 防止了洗涤水由保 护套的顶端进入保护套内， 达到了防水效果。
如图 12所示，本方案的洗衣机采用减震吊杆的减震方式，减震吊杆 14包括吊杆 1401， 吊杆顶端的上球座 1402、下端依次串接在吊杆上的下球座 1403、弹簧 1404和弹簧座 1405， 如图 1所示， 在洗衣机的箱体 1内顶部设置有与上球座 1402凹凸对应的吊座， 在外筒 5侧 面分布有与下球座凹凸对应的减震座 401，其中吊座和减震座上分别开有直径大于吊杆 1401 直径的断口， 吊座与上球座接触面及减震座与下球座接触面分别为凹凸对应的弧面接触， 安装时， 将吊杆 1401切入断口内， 上球座和下球座在内、 外筒的重力作用下分别与吊座和 减震座贴合， 贴合后的上球座和下球座将断口封住， 从而防止了吊杆脱出。 为避免洗衣机 移动过程中吊杆从断口脱出， 在下球座与减震座接触的轴孔处， 设置一个向外凸出的锥形 管 1406， 锥形管的直径大于断口的直径， 这样只要下球座相对减震座的移动距离不超出锥 形管的长度， 吊杆就不会由断口中脱出。 本方案在洗衣机的箱体四个角上分别安装一个减 震吊杆， 外筒在减震吊杆的拉力作用下在箱体内处于一个相对悬空的平衡位置上， 并防止 了外筒与箱体的碰撞。
本方案的洗衣机工作过程如下： 将待洗的 1公斤洗涤量以内的衣物放入洗衣机， 洗衣机 在全自动洗涤程序控制下启动洗涤程序， 洗衣机内注水， 在注水过程中， 内筒底部的浮力 室和内浮力室在水的浮力作用下推动内筒沿波轮轴上升， 此时内筒底部的内凹齿轮与波轮 轴上的外凸齿轮脱离， 内筒上升到一定高度后， 内筒顶部的平衡环与外筒顶部的外筒盖接 触， 两者的凸起相互接触， 此时开始洗涤， 洗涤过程中， 电机的电机轴在轴承座内直接驱 动波轮轴旋转， 进而带动波轮对衣物进行洗涤， 洗涤过程时内筒在平衡环与外筒盖上的凸 起阻挡下处于相对静止状态， 而轴承座上的保护套伸入内浮力室内， 避免了洗涤水进入保 护套和洗涤水中的污渍沾到内凹齿轮与外凸齿轮之间的波轮轴上。 洗涤及漂洗完成后洗衣 机排水， 内筒失去浮力后沿波轮轴下降， 最终内筒上的内凹齿轮与波轮轴上的外凸齿轮啮 合， 此时启动脱水程序， 固定在波轮轴上的外凸齿轮就通过内凹齿轮带动内筒旋转， 实现 衣物的脱水。

Claims

权 利 要 求 书
1、 一种小型全自动波轮洗衣机， 包括箱体 （1 )、 控制盘座本体 （2)、 底座 （3)、 外筒 (4)、 内筒 （5) 和电机 （6)， 所述控制盘座本体 （2) 安装在箱体 （1 ) 的上部， 底座 （3) 安装在箱体 （1 ) 的下部， 外筒 （4) 和内筒 (5)安装在箱体（1)内， 其特征在于， 所述电机 (6)为直驱式电机， 电机 (6)与轴承座（11)安装在外筒 (4)底部， 至少电机通过固定装置固定 在外筒上， 电机轴 (601)与波轮轴 (8)在轴承座（11)内连接，内筒 ( 5) 与外筒 (4) 上设置有 浮力离合装置。
2、 如权利要求 1 所述的一种小型全自动波轮洗衣机， 其特征在于， 所述轴承座（11) 上设置有与电机 (6)配合的至少部分容纳电机以防止电机径向移动的定位结构， 优选所述定 位结构为至少三个定位板（1103)和 /或至少一个定位圈（1105)。
3、 如权利要求 2所述的一种小型全自动波轮洗衣机， 其特征在于， 所述定位板 (1103) 和 /或定位圈 (1105)设置在轴承座（11)与电机配合的安装面 （1102) 上， 所述定位板 （1103) 垂直于安装面且以轴承座（11)的轴孔（1110)为虚拟中心呈辐射状对称排列， 定位板 (1103) 与电机接触的接触面部分设置有凸出于接触面的定位台 (1104)， 定位台 （1104) 的内边缘至 轴承座轴孔 （1110) 的轴心线的垂直距离等于或稍大于电机的半径， 所述定位圈 （1105 ) 为与轴承座（11)的轴孔同心的圆管或者弧形段且直径大于轴孔（1110)直径， 所述电机（6) 与轴承座（11)相接触的面上设置有与定位圈（1105)相配合的定位凹槽 （602)。
4、如权利要求 3所述的一种小型全自动波轮洗衣机， 其特征在于，所述定位圈（1105) 与定位板 （1103) 相交且相交处定位圈高于定位板（1103)。
5、 如权利要求 1所述的一种小型全自动波轮洗衣机， 其特征在于， 轴承座 （11 )与外 筒底部接触的固定面 （1101 ) 上设置有沿轴承座的轴孔圆周向上凸出的保护套 （1108)， 波 轮轴 （8) 穿过保护套 （1108) 与电机轴 （601 ) 同轴连接。
6、如权利要求 5所述的一种小型全自动波轮洗衣机， 其特征在于，所述保护套（1108) 的上端部内设置有骨架油封 （1111 )， 保护套 （1108) 的下端和轴承座（11)的轴孔内设置有 轴套 （1109)， 波轮轴（8)上设置有挡圈 （1112)， 挡圈 （1112) 位于骨架油封 （1111 ) 和轴 套 （1109) 之间。
7、如权利要求 5所述的一种小型全自动波轮洗衣机， 其特征在于，所述保护套（1108) 的高度大于外筒 （4) 底部的厚度。
8、 如权利要求 1所述的一种小型全自动波轮洗衣机， 其特征在于， 所述电机轴 （601 ) 与波轮轴 （8 ) 之间设置有隔绝装置 （13 )， 隔绝装置隔绝电机轴和波轮轴的直接接触且结 构与电机轴（601)和波轮轴 （8) 的接合面结构相互适应。
9、 如权利要求 8所述的一种小型全自动波轮洗衣机， 其特征在于， 隔绝装置 （13)包 括一个直径大于轴承座（11)的轴孔 （1110) 的护套 （1301 )， 护套 （1301 ) 为圆柱形平面且 垂直于电机轴 （601 )。
10、 如权利要求 1所述的一种小型全自动波轮洗衣机， 其特征在于， 所述固定装置为 U形结构的固定带 （7)， 所述固定带 （7) 包括两个侧边 （701 ) 和连接两侧边 （701 ) 的压 紧边 （702)， 两侧边 （701 ) 通过端头分别固定在外筒 （4)底部， 固定带 （7) 将电机 （6) 和轴承座（11)压固在外筒 (4) 底部。
11、 如权利要求 10所述的一种小型全自动波轮洗衣机， 其特征在于， 所述电机相对电 机轴的另一面有固定电机轴的轴承凸出部， 所述压紧边（702)的中部设置有固定孔（703)， 固定孔 （703) 与电机 （6) 轴承凸出部对应， 轴承凸出部与固定孔 （703) 之间设置有减震 垫。
12、 如权利要求 1所述的一种小型全自动波轮洗衣机， 其特征在于， 所述内筒（5)与 外筒 （4) 上的浮力离合装置包括设置在内筒 （5 ) 底部的浮力室 （501 )、 内筒底部轴孔处 的内凹齿轮 （9)、 安装在外筒与内筒之间波轮轴上的外凸齿轮 （10)。
13、如权利要求 12所述的一种小型全自动波轮洗衣机，其特征在于，所述浮力室（501 ) 内环绕波轮轴 （8) 轴孔设置有内浮力室 （502)， 所述内浮力室 （502) 由与内筒 （5) 底部 一体的隔离筋 （505) 环绕构成， 在洗衣机注水后内浮力室 （502) 形成一个密封腔。
14、如权利要求 13所述的一种小型全自动波轮洗衣机，其特征在于，所述隔离筋（505 ) 的外围设置有与内筒 （5 ) 底部一体的隔离圈 （503)， 隔离筋和隔离圈之间的内筒 （5) 上 设置有透水孔 （504)， 优选所述隔离筋 （503) 的顶部突出于浮力室 （501 ) 的顶部， 所述 轴承座 （11 ) 上保护套 （1108) 的高度大于外筒 （4)底部的厚度且安装后部分伸入内浮力 室 （502)。
15、 如权利要求 12至 14任何一项所述的一种小型全自动波轮洗衣机， 其特征在于， 所述内筒 （5) 的顶端设置有平衡环 （506)， 外筒 （4) 顶端设置有外筒盖 （402 )， 在内筒
( 5) 与外筒 （4) 的顶部之间设置有阻滞结构， 所述阻滞结构包括设置在平衡环表面的凸 起 （507)、 外筒盖 （402) 与平衡环 （506) 相对一面设置的凸起 （507)， 平衡环 （506) 上 的凸起在内桶 （5) 上浮后与外筒盖 （402) 上的凸起相互接触并阻挡内筒旋转。
16、如权利要求 1所述的一种小型全自动波轮洗衣机，其特征在于，所述电机轴（601 ) 的顶端与波轮轴 （8) 的接触端活动联接， 优选电机轴 （601 ) 和波轮轴 （8) 之间为齿联接 或者电机轴 （601 ) 的顶端为带棱角的多边体， 波轮轴 （8) 的接触端与电机轴 （601 ) 有相 配合的内凹槽。
17、如权利要求 16所述的一种小型全自动波轮洗衣机，其特征在于，所述电机轴（601) 与波轮轴 （8) 之间设置有隔绝装置 （13)， 隔绝装置 （13) 为瓶盖结构， 瓶盖结构的中心 处设置有与电机轴 （601) 和波轮轴 （8) 的接合面结构相互配合的凸起。
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