WO2017091982A1 - 洗碗机的喷臂组件和具有其的洗碗机 - Google Patents

洗碗机的喷臂组件和具有其的洗碗机 Download PDF

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Publication number
WO2017091982A1
WO2017091982A1 PCT/CN2015/096165 CN2015096165W WO2017091982A1 WO 2017091982 A1 WO2017091982 A1 WO 2017091982A1 CN 2015096165 W CN2015096165 W CN 2015096165W WO 2017091982 A1 WO2017091982 A1 WO 2017091982A1
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WO
WIPO (PCT)
Prior art keywords
spray arm
gear
spray
sun gear
drive shaft
Prior art date
Application number
PCT/CN2015/096165
Other languages
English (en)
French (fr)
Inventor
黎铭峰
高峰
Original Assignee
佛山市顺德区美的洗涤电器制造有限公司
美的集团股份有限公司
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
Application filed by 佛山市顺德区美的洗涤电器制造有限公司, 美的集团股份有限公司 filed Critical 佛山市顺德区美的洗涤电器制造有限公司
Priority to PCT/CN2015/096165 priority Critical patent/WO2017091982A1/zh
Priority to ES15909499T priority patent/ES2908904T3/es
Priority to EP15909499.4A priority patent/EP3384821B1/en
Priority to CA3006690A priority patent/CA3006690C/en
Publication of WO2017091982A1 publication Critical patent/WO2017091982A1/zh
Priority to US15/993,938 priority patent/US10779702B2/en

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
    • A47L15/22—Rotary spraying devices

Definitions

  • the present invention relates to the field of dishwasher technology, and more particularly to a spray arm assembly of a dishwasher and a dishwasher having the same.
  • the present invention aims to solve at least one of the technical problems in the related art to some extent.
  • the present invention provides a spray arm assembly for a dishwasher having a simple structure, a wide washing coverage, and a good washing effect.
  • the invention also proposes a dishwasher having a spray arm assembly of the above dishwasher.
  • a spray arm assembly for a dishwasher comprising: a bottom case, wherein a bottom portion of the bottom case defines a water storage chamber, and the bottom case has a water inlet that is electrically connected to the water storage chamber; a spray arm seat, the spray arm seat is rotatably disposed on the bottom case, the spray arm seat has a water inlet passage that is electrically connected to the water storage chamber, and a spray arm body having at least a spray arm, the spray arm body is rotatably disposed on the spray arm seat, and a center of rotation of the spray arm body is eccentrically disposed with respect to a rotation center of the spray arm seat, and the spray arm body has a plurality of Disposed air injection holes, each of which is electrically connected to the water inlet channel; and a driver connected to the spray arm body and the spray arm seat to drive the spray arm body and The spray arm seats are each rotated about their respective centers of rotation.
  • a spray arm assembly for a dishwasher wherein the spray arm body is rotatably disposed at an eccentric position of the spray arm seat rotatable relative to the bottom case such that each spray hole of the spray arm body has an outer
  • the cycloidal motion trajectory makes the spray area close to a square shape, thereby expanding the washing area of the spray arm assembly, and solving the problem that the dishwasher in the related art can not clean the dead angle of the inner tank, and the spray arm assembly of the dishwasher has a simple structure.
  • the washing coverage is wide, the washing effect is good, and the user experience is high.
  • spray arm assembly of the dishwasher according to the embodiment of the present invention may further have the following additional technical features:
  • the method further includes: a driving member coupled to the driver and the spray arm body, the active transmission member being driven by the driver and driving the spray arm body to rotate a driven transmission member, the driven transmission member being coupled to the active transmission member and the spray arm seat, the driven transmission member being driven by the active transmission member
  • the spray arm seat is driven and driven to rotate.
  • the drive transmission member includes a first sun gear and a drive shaft, one end of the drive shaft is coupled to the driver, and the first sun gear is coupled to the other end of the drive shaft,
  • the first sun gear is disposed coaxially with the drive shaft and driven by the drive shaft, and the spray arm body is formed with a planetary gear that meshes with the first sun gear.
  • the gear ratio of the first sun gear to the planetary gear is 1:3.
  • the gear ratio of the first sun gear to the planetary gear is 1:5.
  • the driven transmission member is formed as a first gear provided on the bottom case, and one end of the drive shaft is provided with a second sun gear that meshes with the first gear.
  • the spray arm seat is provided with a second gear that meshes with the first gear, and the second sun gear cooperates with the first gear and the second gear to drive the spray arm seat to rotate.
  • the spray arm holder has a mounting portion extending downward through the bottom case, the mounting portion being formed in a hollow column shape coaxially disposed with the drive shaft, the drive shaft The upper end is connected to the first sun gear through the mounting portion, the lower end of the drive shaft is provided with the second sun gear, the first gear is disposed at the bottom of the bottom case, and the mounting portion is The second gear is provided at a lower end.
  • the upper end of the drive shaft is provided with a plurality of spaced apart grooves
  • the inner ring of the first sun gear is provided with a plurality of projections that cooperate with the grooves.
  • one end of the drive shaft that cooperates with the first sun gear forms a spline shaft, and the spline shaft is snap-connected to the first sun gear.
  • the spray arm seat is a rotary body, and a central axis of the spray arm seat coincides with a central axis of the bottom case and the drive shaft.
  • the spray arm seat is provided with a mounting post eccentrically disposed with respect to a center of rotation of the spray arm seat, and the water supply passage is defined in the mounting post, the spray arm body
  • the sleeve is sleeved on the mounting post and rotatable relative to the mounting post.
  • the mounting post is provided with a plurality of spaced apart tabs, and the inner wall of the spray arm body is provided with a mounting groove that cooperates with the tab.
  • a pressure plate is further provided, the pressure plate being disposed above the bottom casing and connected to the bottom casing, at least a portion of the pressure plate being press-fitted on the spray arm seat.
  • the second sun gear is integrally formed with the drive shaft
  • the planetary gear is integrally formed with the spray arm body
  • the second gear is integrally formed with the spray arm seat.
  • a dishwasher according to an embodiment of the second aspect of the present invention includes the spray boom assembly of the dishwasher according to the above embodiment.
  • FIG. 1 is a perspective view of a spray arm assembly of a dishwasher in accordance with an embodiment of the present invention
  • FIG. 2 is a cross-sectional view of a spray arm assembly of a dishwasher in accordance with an embodiment of the present invention
  • FIG. 3 is a simplified diagram of a spray arm assembly of a dishwasher in accordance with an embodiment of the present invention
  • FIG. 4 is a schematic structural view of a bottom case of a spray arm assembly of a dishwasher according to an embodiment of the present invention
  • Figure 5 is a schematic view showing the structure of a spray arm holder of a spray arm assembly of a dishwasher according to an embodiment of the present invention
  • FIG. 6 is a schematic structural view of a spray arm body of a spray arm assembly of a dishwasher according to an embodiment of the present invention
  • FIG. 7 is an assembled view of a drive shaft and a second sun gear of a spray arm assembly of a dishwasher according to an embodiment of the present invention
  • FIG. 8 is a schematic structural view of a first sun gear of a spray arm assembly of a dishwasher according to an embodiment of the present invention
  • Figure 9 is a motion trajectory of each of the nozzle holes of the spray arm assembly of the dishwasher according to an embodiment of the present invention.
  • Figure 10 is a motion trajectory of each of the nozzle holes of the spray arm assembly of the dishwasher according to still another embodiment of the present invention.
  • Figure 11 is a motion trajectory of each of the nozzle holes of the spray arm assembly of the dishwasher according to another embodiment of the present invention.
  • Figure 12 is a motion trajectory of each of the nozzle holes of the spray arm assembly of the dishwasher according to an embodiment of the present invention
  • Figure 13 is a motion trajectory of each of the nozzle holes of the spray arm assembly of the dishwasher according to still another embodiment of the present invention.
  • Figure 14 is a motion trajectory of each of the nozzle holes of the spray arm assembly of the dishwasher according to still another embodiment of the present invention.
  • Figure 15 is a motion trajectory of each of the nozzle holes of the spray boom assembly of the dishwasher in accordance with another embodiment of the present invention.
  • Spray arm holder 20 water inlet passage 21; mounting portion 22; mounting post 23; tab 231;
  • Spray arm body 30 first spray arm 301c; second spray arm 302c; third spray arm 303c; spray arm 31; spray hole 311; mounting groove 32; sleeve 33;
  • first sun gear 51 a protrusion 511; a drive shaft 52; a groove 521; a first gear 53, a planetary gear 54, a second sun gear 55, a second gear 56;
  • a spray arm assembly 100 of a dishwasher according to an embodiment of the first aspect of the present invention will be specifically described below with reference to FIGS. 1 through 8.
  • a spray arm assembly 100 of a dishwasher includes a bottom case 10, a spray arm holder 20, a spray arm body 30, and a driver 40.
  • the bottom case 10 defines a water storage chamber 11 having a water inlet 12 that is electrically connected to the water storage chamber 11.
  • the spray arm holder 20 is rotatably disposed on the bottom case 10, and the spray arm holder 20 has The water inlet body 21 is electrically connected to the water storage chamber 11 and has at least one spray arm 31.
  • the spray arm body 30 is rotatably disposed on the spray arm holder 20 and the rotation center of the spray arm body 30 is opposite to the spray arm.
  • the rotation center of the seat 20 is eccentrically disposed, and the spray arm body 30 has a plurality of spaced apart spray holes 311, each of which is electrically connected to the water inlet passage 21, and the drive 40 is respectively coupled to the spray arm body 30 and the spray arm seat 20 Connected to drive the spray arm body 30 and the spray arm holder 20 to rotate about their respective centers of rotation.
  • the spray arm assembly 100 of the dishwasher is mainly composed of a bottom case 10, a spray arm holder 20, a spray arm body 30, and a driver 40.
  • the bottom shell 10 defines a water storage chamber 11 having an open upper end.
  • the side wall or the bottom wall of the bottom shell 10 is provided with a water inlet 12 communicating with the water storage chamber 11 to facilitate the system to inject washing water into the water storage chamber 11.
  • the spray arm holder 20 is disposed above the bottom case 10 to close the upper end opening of the bottom case 10, and the spray arm holder 20 is rotatable relative to the bottom case 10, and the spray arm holder 20 has a vertical direction (as shown in FIG. 2).
  • the water inlet passage 21 extends in the up and down direction, and the water inlet passage 21 is electrically connected to the water storage chamber 11.
  • the inner wall of the bottom case 10 is provided with a water inlet 12, and the washing water enters the water storage chamber 11 substantially in a tangential direction, and then flows along the annular flow path of the water storage chamber 11, filling the entire water storage chamber 11, and finally The water inlet passage 21 of the spray arm holder 20 flows out and flows to the respective spray arms 31.
  • the driver 40 is disposed under the bottom case 10 and connected to the spray arm holder 20 to drive the spray arm holder 20 to rotate.
  • the spray arm body 30 is disposed at an eccentric position of the spray arm holder 20 and is rotatable relative to the spray arm holder 20.
  • the spray arm body 30 has at least one spray arm 31, and each spray arm 31 is provided with a plurality of spray holes 311 spaced apart along the longitudinal direction of the spray arm 31, and each spray hole 311 is respectively connected to the water inlet passage 21 Turn on.
  • the actuator 40 drives the spray arm holder 20 to rotate about its central axis.
  • the spray arm body 30 is disposed at the eccentric position of the spray arm holder 20,
  • the spray arm body 30 is circumferentially moved relative to the spray arm holder 20, and the washing center is moved from the water inlet 12 of the bottom casing 10 into the water storage chamber 11 and then through the water inlet passage 21 with respect to the bottom casing 10 being subjected to a constantly changing movement of the center of rotation. It flows to each of the spray arms 31 and is ejected from the plurality of spray holes 311 to achieve the purpose of washing the dishes, and the washing cover is wide.
  • the spray arm assembly 100 of the dishwasher is configured such that the spray arm body 30 is rotatably disposed at an eccentric position of the spray arm holder 20 rotatable relative to the bottom housing 10 such that the spray arm body
  • Each of the injection holes 311 of the 30 has an outer trochoidal movement trajectory, that is, the rinsing area is close to a square shape, thereby expanding the washing area of the spray arm assembly 100, and solving the problem that the dishwasher in the related art can not clean the dead angle of the inner liner.
  • the spray arm assembly 100 of the dishwasher has a simple structure, a wide washing coverage, a good washing effect, and a high user experience.
  • the spray arm assembly 100 of the dishwasher further includes a drive member and a follower Transmission Parts.
  • the active transmission member is coupled to the actuator 40 and the spray arm body 30.
  • the drive transmission member is driven by the drive 40 and drives the spray arm body 30 to rotate.
  • the driven transmission member is coupled to the drive transmission member and the spray arm holder 20, and the driven transmission is driven.
  • the piece is driven by the drive member and drives the spray arm holder 20 to rotate.
  • the spray boom assembly 100 of the dishwasher is primarily comprised of a bottom casing 10, a spray arm mount 20, a spray arm body 30, a drive transmission member, a driven transmission member, and a drive 40.
  • the drive transmission member is coupled to the actuator 40 and the spray arm body 30, respectively
  • the driven transmission member is coupled to the spray arm holder 20, and the drive transmission member cooperates with the driven transmission member, when the spray gun assembly 100 of the dishwasher begins
  • the driver 40 drives the active transmission member to move, so that the driving member drives the spray arm body 30 to rotate relative to the spray arm holder 20.
  • the active transmission member can also drive the driven transmission member to operate, thereby driving the spray arm holder 20 relative to the bottom.
  • the shell 10 rotates.
  • the drive train includes a first sun gear 51 and a drive shaft 52, one end of which is coupled to the driver 40, and the first sun gear 51 is coupled to the other end of the drive shaft 52,
  • the first sun gear 51 is disposed coaxially with the drive shaft 52 and is driven by the drive shaft 52.
  • the spray arm body 30 is formed with a planetary gear 54 that meshes with the first sun gear 51.
  • the driving member is mainly composed of a first sun gear 51 and a driving shaft 52, wherein the driving shaft 52 extends in a vertical direction (up and down direction as shown in FIG. 2), and the driving shaft 52 is mounted.
  • the spray arm holder 20 is rotatable relative to the spray arm holder 20, wherein one end of the drive shaft 52 (the lower end shown in FIG. 2) is coupled to the driver 40, and the other end of the drive shaft 52 (shown in FIG. 2).
  • the upper end is connected to the first sun gear 51, and the lower end of the spray arm body 30 is provided with a planetary gear 54, which meshes with the first sun gear 51.
  • the driver 40 drives the drive shaft 52 to rotate about its own central axis, and the upper end of the drive shaft 52 drives the first sun gear 51 to rotate about the central axis of the drive shaft 52, so that the spray arm holder 20 drives the spray arm body.
  • 30 is rotated about the central axis of the drive shaft 52 (revolution of the spray arm body 30), while the first sun gear 51 meshes with the planetary gear 54 to rotate the spray arm body 30 about the central axis of the planetary gear 54 (the spray arm)
  • the lower end of the drive shaft 52 cooperates with the driven transmission member to drive the spray arm holder 20 to rotate about the central axis of the drive shaft 52.
  • the planetary gear 54 is located at the eccentric position of the spray arm holder 20, when the spray arm assembly 100 of the dishwasher starts to operate, the spray arm body 30 rotates relative to the spray arm holder 20, and the spray arm holder 20 is opposite to the bottom.
  • the shell 10 rotates.
  • the ratio of the number of teeth of the first sun gear 51 to the planet gears 54 is 1:3. Since the first sun gear 51 and the planetary gear 54 are in an external meshing relationship, the rotation direction of the planetary gear 54 is the same as the revolution direction. Alternatively, the gear ratio of the first sun gear 51 and the planetary gear 54 is 1:3, for example, The first sun gear 51 has 30 teeth and the planet gear 54 has 90 teeth. Thus, the ratio of the pitch circle radius R1 of the first sun gear 51 to the pitch circle radius R2 of the planetary gear 54 is also 1:3, and the radius R3 of the planetary gear 54 revolution track is equal to the sum of R1 and R2.
  • the ends of the respective spray arms 31 will exhibit a long outer wobble motion trajectory to better cover the rectangular region.
  • the phase difference angle of the motion trajectories of the two spray arms 31 is equal to 3/2 of the phase difference angle between the two spray arms 31.
  • each spray orifice 311 on a single spray arm 31 has a characteristic epicycloidal motion trajectory: for a relatively outer orifice 311, the orifice 311 is greater from the center of the planet gear 54 than the planet gear 54
  • the indexing circle radius is 4 times of R2, the motion trajectory is a long outer trochoid, the curve itself does not cross, the front and rear are convex, and the left and right sides are slightly concave; as the nozzle hole 311 moves inward, the long slant
  • the concave of the line motion trajectory gradually becomes obvious, the radius of the transition fillet gradually decreases, and the four corners gradually become sharp; when the nozzle hole 311 is equal to the center of the planetary gear 54 equal to 4 times the radius R2 of the index circle of the planetary gear 54,
  • the transitional fillet of the concave position just disappears, and the long outer trochoidal movement trajectory of the injection hole 311 is entirely a front and rear convex kidney line; thereafter, for the relatively inner injection hole 311,
  • the concave position of the long outer trochoidal motion trajectory forms a cross shape; finally, for the injection hole 311 located at the center position of the planetary gear 54, the trajectory of the movement is revolution Trajectory, ie radius R3 Round.
  • each of the nozzle holes 311 of the spray arm body 30 can have a trochoidal motion trajectory, that is, the spray area is close to a rectangle. Therefore, the washing area of the spray arm assembly 100 is enlarged, and the problem that the dishwasher can not clean the dead angle of the inner liner in the related art is solved.
  • the spray arm assembly 100 of the dishwasher has a simple structure, a wide washing coverage, and a good washing effect. The experience is high.
  • the first sun gear 51 and the planetary gear 54 have a gear ratio of 1:5, for example, the first sun gear 51 has 20 teeth, and the planetary gear 54 has 100 teeth.
  • the ratio of the index circle radius R1 of the first sun gear 51 to the pitch circle radius R2 of the planetary gear 54 is also 1:5, and the radius R3 of the planetary gear 54 revolution track is equal to the sum of R1 and R2.
  • the ends of the respective spray arms 31 will exhibit a long outer wobble motion trajectory, better covering the square area.
  • the phase difference angle of the motion trajectories of the two spray arms 31 is equal to 5/4 of the phase difference angle between the two spray arms 31.
  • each spray orifice 311 on a single spray arm 31 has a characteristic epicycloidal motion trajectory: the distance between the spray orifice 311 and the center of the planet gear 54 for the relatively outer orifice 311 More than 6 times the radius of the index circle R2 of the planetary gear 54, the motion trajectory is a four-lobed long outer wobble line, the trajectory curve itself does not cross, and the four corners are convex; as the position of the nozzle hole 311 moves inward, the motion trajectory The four recesses in the middle gradually become obvious, the radius of the transition fillet gradually decreases, and gradually becomes sharp; when the distance between the nozzle hole 311 and the center of the planetary gear 54 is equal to 6 times the radius R2 of the index circle of the planetary gear 54, That is, five times the revolution radius R3, the transition fillet of the four recessed positions just disappears and becomes four sharp corners; after that, for the relatively inner nozzle hole 311, the distance between the nozzle hole 311 and the center of the planetary gear
  • the actuator 40 drives the spray arm holder 20 to rotate about its central axis.
  • the spray arm body 30 is disposed at the eccentric position of the spray arm holder 20,
  • the spray arm body 30 is circumferentially moved relative to the spray arm holder 20, and the washing center is moved from the water inlet 12 of the bottom casing 10 into the water storage chamber 11 and then through the water inlet passage 21 with respect to the bottom casing 10 being subjected to a constantly changing movement of the center of rotation. It flows to each of the spray arms 31 and is ejected from the plurality of spray holes 311 to achieve the purpose of washing the dishes, and the washing cover is wide.
  • each of the injection holes 311 of the spray arm body 30 has an outer trochoidal movement trajectory, that is, the spray blasting area is close to a square, thereby expanding the washing area of the spray arm assembly 100, and solving the related art in the dishwasher cleaning
  • the problem of the biliary angle is that the spray arm assembly 100 of the dishwasher has a simple structure, a wide washing coverage, a good washing effect, and a high user experience.
  • the driven transmission member is formed as a first gear 53 disposed on the bottom case 10.
  • One end of the drive shaft 52 is provided with a second sun gear 55 meshing with the first gear 53
  • the spray arm holder 20 is provided with The second gear 56 meshed by the first gear 53 and the second sun gear 55 cooperate with the first gear 53 and the second gear 56 to drive the spray arm holder 20 to rotate.
  • the lower end of the drive shaft 52 is fixed with a second sun gear 55
  • the bottom case 10 is provided with a first gear 53 that is rotatable
  • the lower end of the spray arm holder 20 is provided with a second gear 56.
  • the first gear 53 includes two teeth having different numbers of teeth and the two teeth are respectively meshed with the second gear 56 and the second sun gear 55.
  • the drive shaft 52 drives The first sun gear 51 and the second sun gear 55 rotate about a central axis of the drive shaft 52, wherein the second sun gear 55 on the drive shaft 52 meshes with the first gear 53 such that the first gear 53 meshes with the second gear 56
  • the spray arm holder 20 is rotated about the central axis of the drive shaft 52, and the first sun gear 51 on the drive shaft 52 is driven to mesh with the planetary gear 54 to drive the spray arm body 30 to rotate about the central axis of the planetary gear 54. Therefore, the transmission system of the spray arm assembly 100 of the dishwasher is simple in structure, convenient to assemble and disassemble, easy to operate, low in cost, and can accurately transmit motion.
  • the lower end of the bottom case 10 is provided with a fixed shaft 13, and the first gear 53 is mounted on the fixed shaft 13 and rotatable relative to the fixed shaft 13, facilitating the installation of the first gear 53, thereby realizing The functional requirements of the spray boom assembly 100 of the dishwasher.
  • the spray arm holder 20 has a mounting portion 22 extending downward through the bottom case 10.
  • the mounting portion 22 is formed in a hollow column shape coaxial with the drive shaft 52, and the drive shaft
  • the upper end of the 52 is connected to the first sun gear 51 through the mounting portion 22, and the lower end of the drive shaft 52 is provided with a second sun gear 55.
  • the first gear 53 is disposed at the bottom of the bottom case 10, and the lower end of the mounting portion 22 is provided with a second portion.
  • Gear 56 is provided at the bottom of the bottom case 10.
  • the mounting portion 22 is located at a center position of the spray arm holder 20 and along the axial direction of the spray arm holder 20 (as shown in FIG. 5
  • the upper and lower directions are shown to extend downwardly
  • a hollow portion for mounting the drive shaft 52 is defined in the mounting portion 22, and the drive shaft 52 passes through the hollow portion and is rotatable relative to the mounting portion 22, wherein the upper end of the drive shaft 52 and The lower end respectively protrudes from the hollow portion for mounting the first sun gear 51 and the second sun gear 55, and the second sun gear 55 meshes with the first gear 53 on the fixed shaft 13 of the bottom case 10, and the first sun gear 51 Engaged with the planet gears 54 of the spray arm body 30.
  • the spray arm holder 20 is provided with a mounting post 23 which is eccentrically disposed with respect to the rotation center of the spray arm holder 20.
  • the water supply passage 21 is defined in the mounting post 23, and the spray arm body 30 is sleeved on the mounting post 23 and opposite The mounting post 23 is rotatable.
  • the spray arm body 30 includes a sleeve 33 extending in a vertical direction, and a planetary gear 54 is provided at a lower end of the sleeve 33.
  • the spray arm holder 20 serves as a planet.
  • the planetary carrier of the gear 54 ensures the orbit of the planetary gear 54, and the upper end of the sleeve 33 of the spray arm body 30 projects a plurality of spray arms 31 from the center of the planetary gear 54, and each spray arm 31 A plurality of injection holes 311 are respectively opened in the upper part.
  • a portion of the orifices 311 are used for washing, and other orifices 311 are primarily used to urge the spray arms 31 to rotate horizontally with the planet gears 54, thereby providing power to the rotation of the sprayer body 30.
  • the mounting post 23 is provided with a plurality of spaced apart tabs 231 , and the inner wall of the spray arm body 30 is provided with a mounting slot 32 that cooperates with the tab 231 .
  • the spray arm body 30 is engaged with the spray arm seat 20
  • the spray arm body 30 is prevented from being disengaged from the spray arm seat 20 during operation, and the relative rotation between the spray arm body 30 and the spray arm seat 20 can be ensured.
  • the trajectory of the rotation of the spray arm body 30 and the planetary gear 54 is achieved.
  • the upper end of the drive shaft 52 is provided with a plurality of spaced apart grooves 521, and the inner ring of the first sun gear 51 is provided with a plurality of protrusions 511 that cooperate with the grooves 521.
  • the side wall of the upper end of the drive shaft 52 is provided with a plurality of grooves 521 arranged along the circumferential direction thereof, and the inner wall of the first sun gear 51 is provided with a plurality of grooves 521.
  • the protrusion 511 ensures the fixed connection of the first sun gear 51 to the drive shaft 52, which improves the connection reliability of the spray arm assembly 100 of the dishwasher.
  • one end of the drive shaft 52 that mates with the first sun gear 51 forms a spline shaft that is snap-fitted to the first sun gear 51.
  • the inner side wall of the first sun gear 51 is provided with a spline hole, and four protrusions 511 are disposed in the hole, and the first sun gear 51 is mounted on the spline shaft of the drive shaft 52 until four The projection 511 fastens the four recesses 521 on the spline shaft to fix the first sun gear 51.
  • the connecting structure can realize the cooperation of the driving shaft 52 and the first sun gear 51, and has the advantages of simple structure, convenient manufacture and high assembly and disassembly efficiency.
  • the spray arm mount 20 is a swivel body having a central axis that coincides with a central axis of the bottom housing 10 and the drive shaft 52.
  • the spray arm assembly 100 of the dishwasher further includes a pressure plate 60 disposed above the bottom case 10 and coupled to the bottom case 10, at least a portion of which is press-fitted to the spray arm holder 20.
  • the spray arm holder 20 is located between the first sun gear 51 and the bottom case 10.
  • the center axes of the three are coincident, and the main body of the spray arm holder 20 is a circular turntable.
  • the seat 20 covers the water storage chamber 11 of the bottom case 10
  • the mounting portion 22 of the spray arm holder 20 extends into the water storage chamber 11, and then presses the outer ring of the spray arm holder 20 with the pressure plate 60. At this time, the drive shaft 52 is inserted into the mounting portion 22 and protrudes.
  • the first sun gear 51 is then engaged with the upper end of the drive shaft 52, and finally the spray arm body 30 is mounted to the mounting post 23 on the spray arm holder 20, and the planetary gear 54 on the spray arm body 30 is attached.
  • the spray arm holder 20 is embedded between the pressure plate 60 and the bottom case 10 and is rotatable relative to the pressure plate 60 and the bottom case 10.
  • the second sun gear 55 is integrally formed with the drive shaft 52
  • the planetary gear 54 is integrally formed with the spray arm body 30
  • the second gear 56 is integrally formed with the spray arm seat 20.
  • the integrally formed structure not only ensures the structure and performance stability of the spray arm assembly 100 of the dishwasher, but also facilitates molding and manufacturing, and eliminates unnecessary fittings and connection processes, thereby greatly improving the dishwasher.
  • the assembly efficiency of the spray arm assembly 100 ensures the reliability of the connection of the spray boom assembly 100 of the dishwasher.
  • the overall structure and stability of the integrally formed structure are high, the assembly is more convenient, and the service life is longer.
  • a spray arm assembly 100 for a dishwasher in accordance with an embodiment of the present invention will now be described with reference to the specific embodiments of Figures 1 through 15.
  • the first sun gear 51 is fixed at a center position of the bottom of the dishwasher inner tank, and the inner side wall of the first sun gear 51 is provided with a spline hole, and the spline is There are four protrusions 511 in the hole, and the first sun gear 51 is sleeved on the spline shaft of the drive shaft 52 until the four protrusions 511 are fastened to the four grooves 521 on the spline shaft to realize the first
  • the sun gear 51 is fixedly coupled to the drive shaft 52.
  • the water storage chamber 11 of the bottom case 10 is an annular flow path, and the side wall of the bottom case 10 is provided with a water inlet 12, and the washing water enters the water storage chamber 11 substantially in a tangential direction, and then flows along the annular flow path, filling the entire
  • the water storage chamber 11 finally flows out from the water inlet passage 21 of the spray arm holder 20 and flows to the spray arm 31.
  • the gear ratio of the first sun gear 51 and the planetary gear 54 is 1:3, wherein the spray arm assembly 100 of the dishwasher includes a spray arm 31 according to the first sun gear 51 and the planetary gear 54's gear ratio and external meshing relationship, it can be seen that the end of the spray arm 31 presents a relatively long rectangular oscillating motion trajectory, which achieves better coverage of the rectangular spray area.
  • the curve equation of the long oscillating motion trajectory is:
  • D is the distance between the nozzle hole 311 and the center of the planetary gear 54
  • R1 is the index circle radius of the first sun gear 51
  • R2 is the index circle radius of the planet gear 54.
  • the modulus of the first sun gear 51 and the planetary gear 54 is set to 0.5, the first sun gear 51 has 30 teeth, and the planetary gear 54 has 90 teeth.
  • the ratio of the pitch circle radius R1 of the first sun gear 51 and the pitch circle radius R2 of the planetary gear 54 is also 1:3, specifically, R1 is equal to 7.5 mm, R2 is equal to 22.5 mm, and the revolution of the planetary gear 54 is achieved.
  • the radius R3 of the trajectory is equal to (R1+R2), ie 30 mm.
  • the distance between the relatively outer nozzle hole 311 on the spray arm 31 and the center of the planetary gear 54 is greater than four times the radius R2 of the pitch circle of the planetary gear 54, that is, 90 mm, and the motion track is a long outer swing line.
  • the curve itself does not cross, the front and rear are convex, and the left and right sides are slightly concave; as the position of the nozzle hole 311 moves inward, the concave of the long outer wobble line is gradually obvious, and the radius of the transition fillet is gradually reduced.
  • the gradient is sharp; when the distance between the nozzle hole 311 and the center of the planetary gear 54 is equal to 90 mm, the transition fillet of the concave position just disappears, and the long oscillating motion trajectory of the spray hole 311 is the front and rear convex kidney.
  • the distance between the nozzle hole 311 and the center of the planetary gear 54 is less than 90 mm, and the concave position of the long outer cycloidal motion locus forms a cross shape;
  • the injection hole 311 at the center position of the planetary gear 54 has a motion trajectory of a revolution trajectory line, that is, a circle having a radius of 30 mm.
  • the kickback action of the water sprayed through the partial spray holes 311 on the spray arm drives the spray arm 31 to rotate together with the planetary gear 54. Due to the gear meshing relationship, the spray arm 31 revolves on the first sun gear 51 together with the planetary gear 54 while rotating. The rotation is the same as the revolution, and the speed ratio is 1:3.
  • the gear ratio of the first sun gear 51 and the planetary gear 54 is 1:3, and the spray arm body 30 has two spray arms 31, that is, outward from the center of the planetary gear 54.
  • Two spray arms 31 are arranged, and the two spray arms 31 are disposed at opposite angles, and the phase difference angle is 180°, and a plurality of spray holes 311 are respectively formed on the two spray arms 31.
  • the movement trajectories of the two spray arms 31 have a phase difference angle equal to 3/ of the phase difference angle between the two spray arms 31. 2, specifically 270 °, that is, the two groups of motion trajectories are perpendicular to each other.
  • the spray holes 311 on the two spray arms 31 respectively constitute a characteristic long-range epicycloid motion trajectory, and the features thereof are consistent with the description of the first embodiment, and are not described herein again. Moreover, since the phase difference between the movement trajectories of the two groups of nozzle holes 311 on the two spray arms 31 is 270°, the two groups of trajectories intersect perpendicularly, and a better washing cover effect is formed in the middle portion of the rectangle.
  • the gear ratio of the first sun gear 51 and the planetary gear 54 is 1:3, and the spray arm body 30 has three spray arms 31, that is, extending outward from the center of the planetary gear 54. Three spray arms 31 are provided. The three spray arms 31 are separated by 120°, and each spray arm 31 has a plurality of spray holes 311 respectively. According to the gear ratio of the first sun gear 51 and the planetary gear 54 to 1:3 and the external meshing relationship, three The movement trajectories of the spray arms 31 have a phase difference angle equal to 3/2 of the phase difference angle between the spray arms 31, that is, 180° and 360°.
  • Each set of spray holes 311 of the three spray arms 31 constitutes a long-range epicycloid motion trajectory of the feature, which is consistent with the description of the first embodiment and will not be described herein. Moreover, since the phase difference between the motion trajectories of the three sets of nozzle holes 311 is 180° and 360°, Therefore, the three groups of trajectory lines are oriented in a uniform orientation, and the three groups are superimposed into a more dense venting 311 trajectory to form a better washing coverage effect in the rectangular rinsing area.
  • the spray arm assembly 100 of the dishwasher can achieve a better washing cover effect by adjusting the number of the spray arms 31 and the number of the spray holes 311, etc., and ensuring the rectangular spray-washing area of the spray arm assembly 100 of the dishwasher. Fitted with the rectangular inner liner of the dishwasher to ensure a full range, multi-angle wash rate.
  • the gear ratio of the first sun gear 51 and the planetary gear 54 is 1:5, wherein the spray arm assembly 100 of the dishwasher includes a spray arm 31 according to the first sun gear 51 and the planetary gear 54 have a gear ratio and an external meshing relationship. It can be seen that the end of the spray arm 31 exhibits a long outer wobble motion trajectory which is relatively close to a square, thereby achieving better coverage of the square spray area. Specifically, the curve equation of the long oscillating motion trajectory is:
  • D is the distance between the nozzle hole 311 and the center of the planetary gear 54
  • R1 is the index circle radius of the first sun gear 51
  • R2 is the index circle radius of the planet gear 54.
  • the first sun gear 51 and the planetary gear 54 have a modulus of 0.5, the first sun gear 51 has 20 teeth, and the planetary gear 54 has 100 teeth.
  • the ratio of the radius R1 of the index circle of the first sun gear 51 and the radius R2 of the index circle of the planetary gear 54 is also 1:5, specifically, R1 is equal to 5 mm, R2 is equal to 25 mm, and the revolution of the planetary gear 54 is achieved.
  • the radius R3 of the trajectory is equal to (R1+R2), ie 30 mm.
  • the gear ratio of the first sun gear 51 and the planetary gear 54 of 1:5 and the external meshing relationship, and the speed ratio of the first sun gear 51 and the spray arm seat 20 realized by the speed gear system is 5:1
  • the rotation speed of the planetary gear 54 is 1/5 of the rotation speed of the spray arm holder 20.
  • the spray hole 311 on the spray arm 31 has a special outer cycloidal motion track: for the relatively outer spray hole 311, the spray hole 311
  • the distance from the center of the planetary gear 54 is greater than 6 times the radius R2 of the planetary gear 54, that is, 150 mm, and the motion trajectory is a four-lobed long outer wobble line, the trajectory curve itself does not intersect, and the four corners are convex.
  • the movement trajectory is a revolution trajectory line, that is, a circle having a radius of 30 mm.
  • the kickback action of the water sprayed through the partial spray holes 311 on the spray arm 31 drives the spray arm 31 to rotate together with the planetary gear 54. Due to the gear meshing relationship, the spray arm 31 is rotated together with the planetary gear 54 At the same time, the first center gear 51 is revolved. The rotation is the same as the revolution and the speed ratio is 1:5.
  • the gear ratio of the first sun gear 51 and the planetary gear 54 is 1:5
  • the spray arm body 30 has two spray arms 31, that is, extending outward from the center of the planetary gear 54.
  • Two spray arms 31 are arranged, and the two spray arms 31 are disposed at opposite angles, and the phase difference angle is 180°, and a plurality of spray holes 311 are respectively formed on the two spray arms 31.
  • the gear ratio of the first sun gear 51 and the planetary gear 54 of 1:5 and the external meshing relationship the movement trajectories of the two spray arms 31 have a phase difference angle equal to 5/ of the phase difference angle between the two spray arms 31. 4, specifically 225 °.
  • the concave position of the movement trajectory of one of the spray arms 31 corresponds to the convex position of the movement trajectory of the other spray arm 31.
  • the spray holes 311 on the two spray arms 31 respectively constitute a characteristic long-range epicycloid motion trajectory, and the features thereof are consistent with the description of the fourth embodiment, and are not described herein again. Moreover, since the phase difference between the movement trajectories of the two groups of injection holes 311 on the two spray arms 31 is 225°, the two groups of trajectories are interlaced into a mesh shape in the intermediate spray area to achieve a better washing coverage effect.
  • the gear ratio of the first sun gear 51 and the planetary gear 54 is 1:5
  • the spray arm body 30 has three spray arms 31, that is, extending outward from the center of the planetary gear 54.
  • Three spray arms 31 are provided.
  • the first spray arm 301c and the second spray arm 302c, the first spray arm 301c and the third spray arm 303c are separated by 144°, that is, the angle between the second spray arm 302c and the third spray arm 303c is 72. °
  • the length of the second spray arm 302c and the third spray arm 303c is about 0.618 of the length of the first spray arm 301c, thereby ensuring the balance of the entire spray arm body 30.
  • a plurality of injection holes 311 are defined in each of the spray arms 31.
  • the three sets of motion trajectories of the first spray arm 301c and the second spray arm 302c and the third spray arm 303c have a phase difference angle equal to 5/4 of the phase difference angle between the spray arms 31 and 144°, that is, 90°. And 180°, so the three groups of motion trajectories are oriented in the same direction.
  • Each set of injection holes 311 of the three spray arms 31 constitutes a long-range epicycloid motion trajectory of the feature, and its characteristics are consistent with the description of the fourth embodiment, and will not be described herein. Moreover, since the phase difference between the motion trajectories of the three groups of nozzle holes 311 is 90° and 180°, the three groups of trajectory lines are oriented in the same direction, and the three groups are superimposed into a more dense nozzle 311 movement trajectory in the square spray rinsing area. Form a better wash coverage.
  • the gear ratio of the first sun gear 51 and the planetary gear 54 is 1:5
  • the spray arm body 30 has five spray arms 31, that is, extending outward from the center of the planetary gear 54.
  • Five spray arms 31 are provided.
  • the adjacent two spray arms 31 are separated by 72°, and each spray arm 31 defines a plurality of spray holes 311 respectively.
  • the movement trajectories of the five spray arms 31 have a phase difference angle, which is equal to The phase difference between the spray arms 31 is 5/4 of 72°, that is, 90°, so the five groups of motion trajectories are oriented in the same direction.
  • Each set of spray holes 311 of the five spray arms 31 constitutes a long-range epicycloid motion trajectory of the feature, and its features are consistent with the description of the fourth embodiment, and will not be described herein. Moreover, since the phase difference between the motion trajectories of the five groups of nozzle holes 311 is 90°, the five groups of trajectory lines are oriented in the same direction, and finally superimposed into a very dense movement path of the nozzle holes 311, which is formed very well in the square spray area. Wash coverage.
  • the spray arm assembly 100 of the dishwasher can achieve a better washing coverage by adjusting the number of spray arms 31 and the number of spray holes 311, etc., ensuring the square spray area of the spray boom assembly 100 of the dishwasher. Fitted with the square liner of the dishwasher to ensure a full range, multi-angle wash rate.
  • a dishwasher according to an embodiment of the second aspect of the present invention includes the spray arm assembly 100 of the dishwasher according to the above embodiment. Since the spray arm assembly 100 of the dishwasher according to the embodiment of the present invention has the above-described technical effects, the dishwasher according to the embodiment of the present application also has the above technical effects, that is, the dishwasher has a simple structure and a wide washing coverage. It can form a square spray area (for example, a square shape and a rectangular shape) which is matched with the square inner tank of the dishwasher, and solves the problem that the dishwasher in the related art can not clean the inner corner of the inner liner, has a good washing effect and a high user experience.
  • a square spray area for example, a square shape and a rectangular shape
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. Or in one piece; it may be a mechanical connection, or it may be an electrical connection or a communication with each other; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship between two elements. Unless otherwise expressly defined. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first A feature “above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

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  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Retarders (AREA)

Abstract

一种洗碗机的喷臂组件包括：底壳（10），底壳（10）内限定有储水腔（11），底壳（10）具有与储水腔（11）导通的进水口（12）；喷臂座（20），喷臂座（20）可转动地设在底壳（10）上，喷臂座（20）具有与储水腔（11）导通的进水通道（21）；喷臂体（30），喷臂体（30）具有至少一个喷臂，喷臂体（30）可转动地设在喷臂座（20）上且喷臂体（30）的旋转中心相对于喷臂座（20）的旋转中心偏心设置，喷臂体（30）具有多个喷孔（311），每个喷孔（311）分别与进水通道（21）导通；驱动器（40），驱动器（40）分别与喷臂体（30）和喷臂座（20）相连以驱动喷臂体（30）和喷臂座（20）分别绕其对应的旋转中心转动。所述洗碗机的喷臂组件的喷臂体（30）的每个喷孔（311）具有外摆线运动轨迹使得喷洗区域接近方形，从而扩大该喷臂组件的洗涤面积。还公开了具有该喷臂组件的洗碗机。

Description

洗碗机的喷臂组件和具有其的洗碗机 技术领域
本发明涉及洗碗机技术领域，更具体地，涉及一种洗碗机的喷臂组件和具有其的洗碗机。
背景技术
随着人们生活水平不断提升，对智能化家用电器的需求越来越高，例如家用洗碗机能够代替人工清洗餐具，通过多个喷臂一边旋转，一边向餐具喷射洗涤，结合水的反射、溅洒和流淌等作用，完成对洗碗机内餐具的覆盖清洗。但是，由于洗碗机的内胆通常是接近方形的，依靠一般的旋转喷臂，其喷洗区域是圆形的，难以够到达洗碗机内前后区域，容易形成洗涤死区，从而造成在洗碗机内前后位置出现洗涤不足，大大降低整体洗净效果。
发明内容
本发明旨在至少在一定程度上解决相关技术中的技术问题之一。为此，本发明提出一种洗碗机的喷臂组件，该洗碗机的喷臂组件的结构简单、洗涤覆盖面广、洗涤效果好。
本发明还提出一种具有上述洗碗机的喷臂组件的洗碗机。
根据本发明第一方面实施例的洗碗机的喷臂组件，包括：底壳，所述底壳内限定有储水腔，所述底壳具有与所述储水腔导通的进水口；喷臂座，所述喷臂座可转动地设在所述底壳上，所述喷臂座具有与所述储水腔导通的进水通道；喷臂体，所述喷臂体具有至少一个喷臂，所述喷臂体可转动地设在所述喷臂座上且所述喷臂体的旋转中心相对于所述喷臂座的旋转中心偏心设置，所述喷臂体具有多个间隔开布置的喷孔，每个所述喷孔分别与所述进水通道导通；驱动器，所述驱动器分别与所述喷臂体和所述喷臂座相连以驱动所述喷臂体和所述喷臂座分别绕其对应的旋转中心转动。
根据本发明实施例的洗碗机的喷臂组件，通过将喷臂体可转动地设在相对于底壳可转动的喷臂座的偏心位置处，使得喷臂体的每个喷孔具有外摆线运动轨迹即使得喷洗区域接近方形，从而扩大该喷臂组件的洗涤面积，解决相关技术中的洗碗机清洗不到内胆死角的问题，该洗碗机的喷臂组件的结构简单，洗涤覆盖面广，洗涤效果好，用户体验高。
另外，根据本发明实施例的洗碗机的喷臂组件，还可以具有如下附加的技术特征：
根据本发明的一个实施例，还包括：主动传动件，所述主动传动件与所述驱动器和所述喷臂体相连，所述主动传动件由所述驱动器驱动并驱动所述喷臂体转动；从动传动件，所述从动传动件与所述主动传动件和所述喷臂座相连，所述从动传动件由所述主动传动件 驱动并驱动所述喷臂座转动。
根据本发明的一个实施例，所述主动传动件包括第一中心齿轮和驱动轴，所述驱动轴的一端与所述驱动器相连，所述第一中心齿轮与所述驱动轴的另一端相连，所述第一中心齿轮与所述驱动轴同轴设置并由所述驱动轴驱动，所述喷臂体上形成有与所述第一中心齿轮啮合的行星齿轮。
根据本发明的一个实施例，所述第一中心齿轮与所述行星齿轮的齿数比为1：3。
根据本发明的一个实施例，所述第一中心齿轮与所述行星齿轮的齿数比为1：5。
根据本发明的一个实施例，所述从动传动件形成为设在所述底壳上的第一齿轮，所述驱动轴的一端设有与所述第一齿轮啮合的第二中心齿轮，所述喷臂座上设有与所述第一齿轮啮合的第二齿轮，所述第二中心齿轮与所述第一齿轮和第二齿轮配合驱动所述喷臂座转动。
根据本发明的一个实施例，所述喷臂座具有穿过所述底壳向下延伸的安装部，所述安装部形成为与所述驱动轴同轴设置的中空柱状，所述驱动轴的上端穿过所述安装部与所述第一中心齿轮相连，所述驱动轴的下端设有所述第二中心齿轮，所述第一齿轮设在所述底壳的底部，所述安装部的下端设有所述第二齿轮。
根据本发明的一个实施例，所述驱动轴的上端设有多个间隔开布置的凹槽，所述第一中心齿轮的内圈设有多个与所述凹槽配合的凸起。
根据本发明的一个实施例，所述驱动轴的与所述第一中心齿轮配合的一端形成花键轴，所述花键轴与所述第一中心齿轮卡接相连。
根据本发明的一个实施例，所述喷臂座为回转体，所述喷臂座的中心轴线与所述底壳和所述驱动轴的中心轴线重合。
根据本发明的一个实施例，所述喷臂座上设有相对于所述喷臂座的旋转中心偏心设置的安装柱，所述安装柱内限定有所述进水通道，所述喷臂体套设在所述安装柱上且相对于所述安装柱可转动。
根据本发明的一个实施例，所述安装柱上设有多个间隔开布置的卡舌，所述喷臂体的内壁设有与所述卡舌配合的安装槽。
根据本发明的一个实施例，还包括压板，所述压板设在所述底壳的上方且与所述底壳相连，所述压板的至少一部分压设在所述喷臂座上。
根据本发明的一个实施例，所述第二中心齿轮与所述驱动轴一体形成，所述行星齿轮与所述喷臂体一体形成，所述第二齿轮与所述喷臂座一体形成。
根据本发明第二方面实施例的洗碗机，包括根据上述实施例所述的洗碗机的喷臂组件。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明 显，或通过本发明的实践了解到。
附图说明
图1是根据本发明实施例的洗碗机的喷臂组件的立体图；
图2是根据本发明实施例的洗碗机的喷臂组件的剖视图；
图3是根据本发明实施例的洗碗机的喷臂组件的简化图；
图4是根据本发明实施例的洗碗机的喷臂组件的底壳的结构示意图；
图5是根据本发明实施例的洗碗机的喷臂组件的喷臂座结构示意图；
图6是根据本发明实施例的洗碗机的喷臂组件的喷臂体的结构示意图；
图7是根据本发明实施例的洗碗机的喷臂组件的驱动轴与第二中心齿轮的装配图；
图8是根据本发明实施例的洗碗机的喷臂组件的第一中心齿轮的结构示意图；
图9是根据本发明一个实施例的洗碗机的喷臂组件的各个喷孔的运动轨迹；
图10是根据本发明又一个实施例的洗碗机的喷臂组件的各个喷孔的运动轨迹；
图11是根据本发明另一个实施例的洗碗机的喷臂组件的各个喷孔的运动轨迹；
图12是根据本发明一个实施例的洗碗机的喷臂组件的各个喷孔的运动轨迹；
图13是根据本发明再一个实施例的洗碗机的喷臂组件的各个喷孔的运动轨迹；
图14是根据本发明又一个实施例的洗碗机的喷臂组件的各个喷孔的运动轨迹；
图15是根据本发明另一个实施例的洗碗机的喷臂组件的各个喷孔的运动轨迹。
附图标记：
喷臂组件100；
底壳10；储水腔11；进水口12；固定轴13；
喷臂座20；进水通道21；安装部22；安装柱23；卡舌231；
喷臂体30；第一喷臂301c；第二喷臂302c；第三喷臂303c；喷臂31；喷孔311；安装槽32；套筒33；
驱动器40；
第一中心齿轮51；凸起511；驱动轴52；凹槽521；第一齿轮53；行星齿轮54；第二中心齿轮55；第二齿轮56；
压板60。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出。下面通过参考附图 描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
下面结合附图1至图8具体描述根据本发明第一方面实施例的洗碗机的喷臂组件100。
如图1和图2所示，根据本发明实施例的洗碗机的喷臂组件100包括底壳10、喷臂座20、喷臂体30和驱动器40。具体而言，底壳10内限定有储水腔11，底壳10具有与储水腔11导通的进水口12，喷臂座20可转动地设在底壳10上，喷臂座20具有与储水腔11导通的进水通道21，喷臂体30具有至少一个喷臂31，喷臂体30可转动地设在喷臂座20上且喷臂体30的旋转中心相对于喷臂座20的旋转中心偏心设置，喷臂体30具有多个间隔开布置的喷孔311，每个喷孔311分别与进水通道21导通，驱动器40分别与喷臂体30和喷臂座20相连以驱动喷臂体30和喷臂座20分别绕其对应的旋转中心转动。
也就是说，该洗碗机的喷臂组件100主要由底壳10、喷臂座20、喷臂体30和驱动器40组成。其中，底壳10内限定有上端开口的储水腔11，底壳10的侧壁或底壁上设有与储水腔11连通的进水口12，方便系统向储水腔11注入洗涤用水，喷臂座20设在底壳10的上方以封闭底壳10的上端开口，并且该喷臂座20相对于底壳10可转动，喷臂座20具有沿竖直方向(如图2所示的上下方向)延伸的进水通道21，该进水通道21与储水腔11导通。有利地，底壳10的内壁上设有进水口12，洗涤用水大致沿切线方向进入储水腔11，之后沿储水腔11的环状流道流动，注满整个储水腔11，最后从喷臂座20的进水通道21流出，流向各个喷臂31。
进一步地，驱动器40设在底壳10的下方且与喷臂座20相连以驱动喷臂座20转动，喷臂体30设在喷臂座20的偏心位置上且相对于喷臂座20可转动，其中，喷臂体30具有至少一个喷臂31，每个喷臂31上设有多个沿喷臂31的长度方向间隔开布置的喷孔311，每个喷孔311分别与进水通道21导通。
当该洗碗机的喷臂组件100在工作过程中，驱动器40驱动喷臂座20绕其中心轴线转动，在此过程中，由于喷臂体30设在喷臂座20的偏心位置，因此，喷臂体30相对于喷臂座20做圆周运动，而相对于底壳10做旋转中心不断变化的运动，洗涤用水从底壳10的进水口12进入储水腔11，然后通过进水通道21流向每个喷臂31，并从多个喷孔311喷射出，达到洗涤碗盘的目的，洗涤覆盖面广。
由此，根据本发明实施例的洗碗机的喷臂组件100，通过将喷臂体30可转动地设在相对于底壳10可转动的喷臂座20的偏心位置处，使得喷臂体30的每个喷孔311具有外摆线运动轨迹，即使得喷洗区域接近方形，从而扩大该喷臂组件100的洗涤面积，解决相关技术中的洗碗机清洗不到内胆死角的问题，该洗碗机的喷臂组件100的结构简单，洗涤覆盖面广，洗涤效果好，用户体验高。
其中，根据本发明的一个实施例，该洗碗机的喷臂组件100还包括主动传动件和从动 传动件。具体而言，主动传动件与驱动器40和喷臂体30相连，主动传动件由驱动器40驱动并驱动喷臂体30转动，从动传动件与主动传动件和喷臂座20相连，从动传动件由主动传动件驱动并驱动喷臂座20转动。
换言之，该洗碗机的喷臂组件100主要由底壳10、喷臂座20、喷臂体30、主动传动件、从动传动件和驱动器40组成。其中，主动传动件分别与驱动器40和喷臂体30相连，而从动传动件与喷臂座20相连，并且主动传动件与从动传动件配合，当该洗碗机的喷臂组件100开始工作时，驱动器40驱动主动传动件运动，使得主动传动件驱动喷臂体30相对于喷臂座20转动，而主动传动件还可以驱动从动传动件运转，从而驱动喷臂座20相对于底壳10转动。由此，通过在喷臂座20和底壳10上分别设置主动传动件和从动传动件，可以满足洗碗机系统要求的洗涤转速，并且方便运动和动力的传递。
可选地，根据本发明的一个实施例，主动传动件包括第一中心齿轮51和驱动轴52，驱动轴52的一端与驱动器40相连，第一中心齿轮51与驱动轴52的另一端相连，第一中心齿轮51与驱动轴52同轴设置并由驱动轴52驱动，喷臂体30上形成有与第一中心齿轮51啮合的行星齿轮54。
具体地，如图2所示，主动传动件主要由第一中心齿轮51和驱动轴52组成，其中，驱动轴52沿竖直方向(如图2所示的上下方向)延伸，驱动轴52安装在喷臂座20上且相对于喷臂座20可转动，其中，驱动轴52的一端(如图2所示的下端)与驱动器40相连，驱动轴52的另一端(如图2所示的上端)与第一中心齿轮51相连，而喷臂体30的下端设有行星齿轮54，该行星齿轮54与第一中心齿轮51啮合。
当驱动器40启动后，驱动器40驱动驱动轴52绕其自身中心轴线转动，而驱动轴52的上端带动第一中心齿轮51绕驱动轴52的中心轴线转动，从而使得喷臂座20带动喷臂体30绕驱动轴52的中心轴线转动(喷臂体30的公转)，与此同时，第一中心齿轮51与行星齿轮54啮合以使喷臂体30绕行星齿轮54的中心轴线转动(喷臂体30的自转)，驱动轴52的下端与从动传动件配合以驱动喷臂座20绕驱动轴52的中心轴线转动。由于行星齿轮54位于喷臂座20的偏心位置处，因此，当该洗碗机的喷臂组件100开始工作时，喷臂体30相对于喷臂座20转动，而喷臂座20相对于底壳10转动。
在本发明的一些具体实施方式中，第一中心齿轮51与行星齿轮54的齿数比为1：3。由于第一中心齿轮51和行星齿轮54为外啮合关系，因此，行星齿轮54的自转方向和公转方向相同，可选地，第一中心齿轮51和行星齿轮54的齿数比为1:3，例如第一中心齿轮51具有30个齿，而行星齿轮54具有90个齿。这样，第一中心齿轮51的分度圆半径R1和行星齿轮54的分度圆半径R2的比值也是1:3，并且行星齿轮54公转轨迹的半径R3等于R1和R2之和。
进一步地，由于第一中心齿轮51和行星齿轮54的齿数比和外啮合关系，因此，各个喷臂31的端部将呈现长幅外摆线运动轨迹，更好地覆盖长方形区域。并且，两个喷臂31运动轨迹的相位差角度，等于两个喷臂31之间相位差角度的3/2。
针对单个喷臂31而言，单个喷臂31上的每个喷孔311具有特征的外摆线运动轨迹：对于相对靠外的喷孔311，喷孔311距离行星齿轮54的中心大于行星齿轮54的分度圆半径R2的4倍，其运动轨迹为长幅外摆线，曲线自身不交叉，前后方外凸，左右方稍稍内凹；随着喷孔311位置向内移动，长幅外摆线运动轨迹的内凹逐渐明显，过渡圆角半径逐渐减小，四个角逐渐变得尖锐；当喷孔311距离行星齿轮54的中心等于行星齿轮54的分度圆半径R2的4倍时，内凹位置的过渡圆角刚好消失，喷孔311的长幅外摆线运动轨迹整体为前后外凸的肾形线；之后，对于相对靠内的喷孔311，喷孔311距离行星齿轮54的中心小于行星齿轮54的分度圆半径R2的4倍，其长幅外摆线运动轨迹的内凹位置形成交叉形状；最后，对于位于行星齿轮54的中心位置的喷孔311，其运动轨迹为公转轨迹线，即半径为R3的圆。
由此，通过将第一中心齿轮51和行星齿轮54的齿数比值设置为1：3，可以使得喷臂体30的每个喷孔311具有外摆线运动轨迹，即使得喷洗区域接近长方形，从而扩大该喷臂组件100的洗涤面积，解决相关技术中的洗碗机清洗不到内胆死角的问题，该洗碗机的喷臂组件100的结构简单，洗涤覆盖面广，洗涤效果好，用户体验高。
在本发明的另一些具体实施方式中，第一中心齿轮51和行星齿轮54的齿数比为1:5，例如第一中心齿轮51具有20个齿，而行星齿轮54具有100个齿。这样，第一中心齿轮51的分度圆半径R1和行星齿轮54的分度圆半径R2的比值也是1:5，并且行星齿轮54公转轨迹的半径R3等于R1和R2之和。进一步地，由于第一中心齿轮51和行星齿轮54的齿数比和外啮合关系，因此，各个喷臂31的端部将呈现长幅外摆线运动轨迹，更好地覆盖正方形区域。并且，两个喷臂31运动轨迹的相位差角度，等于两个喷臂31之间相位差角度的5/4。
针对单个喷臂31而言，单个喷臂31上的每个喷孔311具有特征的外摆线运动轨迹：对于相对靠外的喷孔311，喷孔311与行星齿轮54的中心之间的距离大于行星齿轮54的分度圆半径R2的6倍，其运动轨迹为四瓣长幅外摆线，轨迹曲线自身不交叉，四个角外凸；随着喷孔311位置向内移动，运动轨迹中的四处内凹逐渐明显，过渡圆角半径逐渐减小，逐渐变得尖锐；当喷孔311与行星齿轮54的中心之间的距离等于行星齿轮54的分度圆半径R2的6倍时，即公转半径R3的5倍，四处内凹位置的过渡圆角刚好消失，成为四个尖角；之后，对于相对靠内的喷孔311，喷孔311与行星齿轮54的中心之间的距离小于行星齿轮54的分度圆半径R2的6倍，其长幅外摆线运动轨迹的内凹位置形成交叉形状；最后， 对于位于行星齿轮54的中心位置的喷孔311，其运动轨迹为公转轨迹线，即半径为R3的圆。
当该洗碗机的喷臂组件100在工作过程中，驱动器40驱动喷臂座20绕其中心轴线转动，在此过程中，由于喷臂体30设在喷臂座20的偏心位置，因此，喷臂体30相对于喷臂座20做圆周运动，而相对于底壳10做旋转中心不断变化的运动，洗涤用水从底壳10的进水口12进入储水腔11，然后通过进水通道21流向每个喷臂31，并从多个喷孔311喷射出，达到洗涤碗盘的目的，洗涤覆盖面广。
由此，通过将喷臂体30可转动地设在相对于底壳10可转动的喷臂座20的偏心位置处，并将第一中心齿轮51和行星齿轮54的齿数比值设置为1：5，使得喷臂体30的每个喷孔311具有外摆线运动轨迹，即使得喷洗区域接近正方形，从而扩大该喷臂组件100的洗涤面积，解决相关技术中的洗碗机清洗不到内胆死角的问题，该洗碗机的喷臂组件100的结构简单，洗涤覆盖面广，洗涤效果好，用户体验高。
可选地，从动传动件形成为设在底壳10上的第一齿轮53，驱动轴52的一端设有与第一齿轮53啮合的第二中心齿轮55，喷臂座20上设有与第一齿轮53啮合的第二齿轮56，第二中心齿轮55与第一齿轮53和第二齿轮56配合驱动喷臂座20转动。
具体地，如图2所示，驱动轴52的下端固设有第二中心齿轮55，底壳10设有可转动的第一齿轮53，而喷臂座20的下端设有第二齿轮56，该第一齿轮53包括两圈齿数不同的齿部且两圈齿部分别与第二齿轮56和第二中心齿轮55啮合，当该洗碗机的喷臂组件100开始工作时，驱动轴52带动第一中心齿轮51和第二中心齿轮55绕驱动轴52的中心轴线转动，其中驱动轴52上的第二中心齿轮55与第一齿轮53啮合，使得第一齿轮53通过与第二齿轮56啮合、驱动喷臂座20绕驱动轴52的中心轴线转动，而驱动轴52上的第一中心齿轮51通过与行星齿轮54啮合、驱动喷臂体30绕行星齿轮54的中心轴线转动。因此，该洗碗机的喷臂组件100的传动系统结构简单、装拆方便，易于操作，成本低，可以准确地传递运动。
可选地，如图4所示，底壳10的下端设有固定轴13，第一齿轮53安装在固定轴13上且相对于固定轴13可转动，方便第一齿轮53的安装，从而实现该洗碗机的喷臂组件100的功能性要求。
如图5所示，根据本发明的一个实施例，喷臂座20具有穿过底壳10向下延伸的安装部22，安装部22形成为与驱动轴52同轴设置的中空柱状，驱动轴52的上端穿过安装部22与第一中心齿轮51相连，驱动轴52的下端设有第二中心齿轮55，第一齿轮53设在底壳10的底部，安装部22的下端设有第二齿轮56。
具体地，该安装部22位于喷臂座20的中心位置处且沿该喷臂座20的轴向(如图5所 示的上下方向)向下延伸，安装部22内限定有用于安装驱动轴52的中空部，驱动轴52穿过该中空部且相对于该安装部22可转动，其中，驱动轴52的上端和下端分别伸出该中空部以用于安装第一中心齿轮51和第二中心齿轮55，第二中心齿轮55与底壳10的固定轴13上的第一齿轮53啮合，而第一中心齿轮51与喷臂体30的行星齿轮54啮合。
进一步地，喷臂座20上设有相对于喷臂座20的旋转中心偏心设置的安装柱23，安装柱23内限定有进水通道21，喷臂体30套设在安装柱23上且相对于安装柱23可转动。具体地，喷臂体30包括沿竖直方向延伸的套筒33，行星齿轮54设在该套筒33的下端，当喷臂体30安装在喷臂座20上时，喷臂座20作为行星齿轮54的行星齿轮架，保证行星齿轮54的公转轨迹，而喷臂体30的套筒33的上端，从行星齿轮54的中心位置向外伸出若干个喷臂31，并且每个喷臂31上分别开设有若干个喷孔311。有利地，部分喷孔311用于洗涤，另一些喷孔311主要用于推动喷臂31连同行星齿轮54做水平旋转，从而为喷臂体30的转动提供动力。
可选地，如图5和图6所示，安装柱23上设有多个间隔开布置的卡舌231，喷臂体30的内壁设有与卡舌231配合的安装槽32。这样，既可以保证喷臂体30与喷臂座20卡接，避免喷臂体30在运转过程中脱离喷臂座20，又可以保证喷臂体30与喷臂座20之间的相对转动，从而实现喷臂体30以及行星齿轮54的自转轨迹。
而根据本发明的一个实施例，驱动轴52的上端设有多个间隔开布置的凹槽521，第一中心齿轮51的内圈设有多个与凹槽521配合的凸起511。具体地，如图7所示，驱动轴52的上端的侧壁设有多个沿其周向间隔开布置的凹槽521，而第一中心齿轮51的内壁设有多个与凹槽521配合的凸起511，这样可以保证第一中心齿轮51与驱动轴52的固定连接，提高了该洗碗机的喷臂组件100的连接可靠性。
在本发明的一些具体实施方式中，驱动轴52的与第一中心齿轮51配合的一端形成花键轴，花键轴与第一中心齿轮51卡接相连。
具体地，第一中心齿轮51的内侧壁开设有花键孔，并且孔内设有四个凸起511，安装时将第一中心齿轮51套入驱动轴52的花键轴上，直到四个凸起511扣住花键轴上的四个凹槽521，实现第一中心齿轮51的固定。这种连接结构可以实现驱动轴52与第一中心齿轮51的配合，结构简单、制造方便、装拆效率高。
优选地，根据本发明的一个实施例，喷臂座20为回转体，喷臂座20的中心轴线与底壳10和驱动轴52的中心轴线重合。另外，洗碗机的喷臂组件100还包括压板60，压板60设在底壳10的上方且与底壳10相连，压板60的至少一部分压设在喷臂座20上。
具体地，如图2所示，喷臂座20位于第一中心齿轮51与底壳10之间，三者中心轴重合，喷臂座20主体为一个圆形转盘，安装时，首先将喷臂座20盖在底壳10的储水腔11 上，而喷臂座20的安装部22伸入储水腔11内，然后用压板60压住喷臂座20的外圈，此时，将驱动轴52伸入安装部22内并伸出喷臂座20上，然后将第一中心齿轮51与驱动轴52的上端配合，最后将喷臂体30安装到喷臂座20上的安装柱23上，并将喷臂体30上的行星齿轮54与驱动轴52上的第一中心齿轮51配合。因此，喷臂座20嵌设在压板60和底壳10之间，并且能够相对于压板60和底壳10旋转。
优选地，根据本发明的一个实施例，第二中心齿轮55与驱动轴52一体形成，行星齿轮54与喷臂体30一体形成，第二齿轮56与喷臂座20一体形成。由此，一体形成的结构不仅可以保证洗碗机的喷臂组件100的结构、性能稳定性，并且方便成型、制造简单，而且省去了多余的装配件以及连接工序，大大提高了洗碗机的喷臂组件100的装配效率，保证洗碗机的喷臂组件100的连接可靠性，再者，一体形成的结构的整体强度和稳定性较高，组装更方便，寿命更长。
下面结合附图1至图15的具体实施例描述根据本发明实施例的洗碗机的喷臂组件100。
实施例一
如图1至图9所示，在本实施例中，第一中心齿轮51固定在洗碗机内胆底部的中心位置，在第一中心齿轮51的内侧壁开设有花键孔，并且花键孔内设有四个凸起511，安装时将第一中心齿轮51套入驱动轴52的花键轴上，直到四个凸起511扣住花键轴上的四处凹槽521，实现第一中心齿轮51与驱动轴52的固定连接。底壳10的储水腔11为环形流道，并且底壳10的侧壁设有一个进水口12，洗涤用水大致沿切线方向进入储水腔11，之后沿环状流道流动，注满整个储水腔11，最后从喷臂座20的进水通道21流出，流向喷臂31。
如图9所示，在本实施例中，第一中心齿轮51和行星齿轮54的齿数比为1:3，其中，洗碗机的喷臂组件100包括一个喷臂31，根据第一中心齿轮51和行星齿轮54的齿数比和外啮合关系，可知喷臂31的端部呈现比较接近长方形的长幅外摆线运动轨迹，实现对长方形喷洗区域更好的覆盖。具体地，该长幅外摆线运动轨迹的曲线方程为：
x＝(R1+R2)*cos(ang)-D*cos[(R1*ang/R2]
y＝-(R1+R2)*sin(ang)+D*sin[(R1*ang/R2]
其中，D为喷孔311与行星齿轮54的中心之间的距离，R1为第一中心齿轮51的分度圆半径，R2为行星齿轮54的分度圆半径。
例如，第一中心齿轮51和行星齿轮54的模数设置为0.5，第一中心齿轮51具有30个齿，行星齿轮54具有90个齿。由此可知，第一中心齿轮51的分度圆半径R1和行星齿轮54的分度圆半径R2的比值也是1:3，具体为R1等于7.5mm，R2等于22.5mm，而行星齿轮54的公转轨迹的半径R3等于(R1+R2)，即30mm。
进一步地，喷臂31上的相对靠外的喷孔311与行星齿轮54的中心的距离大于行星齿轮54的分度圆半径R2的四倍，即90mm，其运动轨迹为长幅外摆线，曲线自身不交叉，前后方外凸，左右方稍稍内凹；随着喷孔311位置向内移动，长幅外摆线运动轨迹的内凹逐渐明显，过渡圆角半径逐渐减小，四个角逐渐变得尖锐；当喷孔311与行星齿轮54的中心之间的距离等于90mm时，内凹位置的过渡圆角刚好消失，喷孔311的长幅外摆线运动轨迹整体为前后外凸的肾形线；之后，对于相对靠内的喷孔311，喷孔311与行星齿轮54的中心之间的距离小于90mm，其长幅外摆线运动轨迹的内凹位置形成交叉形状；最后，对于位于行星齿轮54的中心位置的喷孔311，其运动轨迹为公转轨迹线，即半径为30mm的圆。
该洗碗机的喷臂组件100在工作时，通过喷臂上的部分喷孔311喷水的反冲作用，驱使喷臂31连同行星齿轮54自转。由于齿轮啮合关系，喷臂31连同行星齿轮54在自转的同时在第一中心齿轮51上进行公转。自转与公转方向相同，并且转速比为1:3。
实施例二
如图10所示，在本实施例中，第一中心齿轮51和行星齿轮54的齿数比为1:3，喷臂体30具有两个喷臂31，即从行星齿轮54的中心向外伸出两个喷臂31，并且两个喷臂31成对角设置，相位差角度为180°，两个喷臂31上分别开设一组喷孔311。根据第一中心齿轮51和行星齿轮54的齿数比1:3和外啮合关系，两个喷臂31的运动轨迹之间具有相位差角度，等于两个喷臂31之间相位差角度的3/2，具体为270°，即两组运动轨迹相互垂直。
而两个喷臂31上的喷孔311分别构成特征的长幅外摆线运动轨迹，其特征与实施例一的描述一致，这里不再赘述。并且，由于两个喷臂31上的两组喷孔311的运动轨迹之间相位差为270°，因此两组轨迹线垂直交叉，在长方形的中间区域内形成更好的洗涤覆盖效果。
实施例三
如图11所示，在本实施例中，第一中心齿轮51和行星齿轮54的齿数比为1:3，喷臂体30具有三个喷臂31，即从行星齿轮54的中心向外伸出三个喷臂31。三个喷臂31之间两两相隔120°，每个喷臂31上分别开设一组喷孔311，根据第一中心齿轮51和行星齿轮54的齿数比1:3和外啮合关系，三个喷臂31的运动轨迹之间具有相位差角度，等于喷臂31间相位差角度的3/2，即180°和360°。
三个喷臂31的每组喷孔311构成特征的长幅外摆线运动轨迹，其特征与实施例一的描述一致，这里不再赘述。并且，由于三组喷孔311的运动轨迹之间相位差为180°和360°， 因此三组轨迹线形状朝向一致，三组叠加成更加密集的喷孔311运动轨迹，在长方形的喷洗区域内形成更好的洗涤覆盖效果。
由此，该洗碗机的喷臂组件100可以通过调整喷臂31的数量以及喷孔311的数量等实现更好的洗涤覆盖效果，保证该洗碗机的喷臂组件100的长方形喷洗区域与洗碗机的长方形内胆适配，保证全方位、多角度的洗净率。
实施例四
如图12所示，在本实施例中，第一中心齿轮51和行星齿轮54的齿数比为1:5，其中，洗碗机的喷臂组件100包括一个喷臂31，根据第一中心齿轮51和行星齿轮54的齿数比和外啮合关系，可知喷臂31的端部呈现比较接近正方形的长幅外摆线运动轨迹，实现对正方形喷洗区域更好的覆盖。具体地，该长幅外摆线运动轨迹的曲线方程为：
x＝(R1+R2)*cos(ang)-D*cos[(R1*ang/R2]
y＝-(R1+R2)*sin(ang)+D*sin[(R1*ang/R2]
其中，D为喷孔311与行星齿轮54的中心之间的距离，R1为第一中心齿轮51的分度圆半径，R2为行星齿轮54的分度圆半径。
例如，第一中心齿轮51和行星齿轮54的模数都是0.5，第一中心齿轮51具有20个齿，行星齿轮54具有100个齿。由此可知，第一中心齿轮51的分度圆的半径R1和行星齿轮54的分度圆的半径R2的比值也是1:5，具体为R1等于5mm，R2等于25mm，而行星齿轮54的公转轨迹的半径R3等于(R1+R2)，即30mm。
进一步地，根据第一中心齿轮51和行星齿轮54的齿数比1:5和外啮合关系，以及配速齿轮系机构实现的第一中心齿轮51与喷臂座20的转速比5:1，可知行星齿轮54的转速为喷臂座20的转速的1/5，即进一步可知喷臂31上的喷孔311呈特殊的外摆线运动轨迹：对于相对靠外的喷孔311，该喷孔311与行星齿轮54的中心之间的距离大于行星齿轮54的分度圆半径R2的6倍，即150mm，其运动轨迹为四瓣长幅外摆线，轨迹曲线自身不交叉，四个角外凸；随着喷孔311位置向内移动，运动轨迹中的四处内凹逐渐明显，过渡圆角半径逐渐减小，逐渐变得尖锐；当喷孔311与行星齿轮54的中心之间的距离等于150mm，也是公转半径R3的5倍时，四处内凹位置的过渡圆角刚好消失，成为四个尖角；之后，对于相对靠内的喷孔311，喷孔311与行星齿轮54的中心之间的距离小于150mm，其长幅外摆线运动轨迹的内凹位置形成交叉形状；最后，对于位于行星齿轮54的中心位置的喷孔311，其运动轨迹为公转轨迹线，即半径为30mm的圆。
该洗碗机的喷臂组件100在工作时，通过喷臂31上的部分喷孔311喷水的反冲作用，驱使喷臂31连同行星齿轮54自转。由于齿轮啮合关系，喷臂31连同行星齿轮54在自转 的同时在第一中心齿轮51上进行公转。自转与公转方向相同，并且转速比为1:5。
实施例五
如图13所示，在本实施例中，第一中心齿轮51和行星齿轮54的齿数比为1:5，喷臂体30具有两个喷臂31，即从行星齿轮54的中心向外伸出两个喷臂31，并且两个喷臂31成对角设置，相位差角度为180°，两个喷臂31上分别开设一组喷孔311。根据第一中心齿轮51和行星齿轮54的齿数比1:5和外啮合关系，两个喷臂31的运动轨迹之间具有相位差角度，等于两个喷臂31之间相位差角度的5/4，具体为225°。此时，其中一个喷臂31的运动轨迹线的内凹位置对应着另一个喷臂31的运动轨迹线的外凸位置。
而两个喷臂31上的喷孔311分别构成特征的长幅外摆线运动轨迹，其特征与实施例四的描述一致，这里不再赘述。并且，由于两个喷臂31上的两组喷孔311的运动轨迹之间相位差为225°，因此两组轨迹线在中间喷洗区域内交织成网状，达到更好的洗涤覆盖效果。
实施例六
如图14所示，在本实施例中，第一中心齿轮51和行星齿轮54的齿数比为1:5，喷臂体30具有三个喷臂31，即从行星齿轮54的中心向外伸出三个喷臂31。其中，第一喷臂301c和第二喷臂302c，第一喷臂301c和第三喷臂303c之间相隔144°，即第二喷臂302c和第三喷臂303c之间的夹角为72°，并且第二喷臂302c和第三喷臂303c的长度是第一喷臂301c长度的约0.618，从而保证整个喷臂体30的平衡。每个喷臂31上分别开设一组喷孔311。第一喷臂301c和第二喷臂302c、第三喷臂303c的三组运动轨迹之间具有相位差角度，等于喷臂31间相位差角度72°和144°的5/4，即90°和180°，因此三组运动轨迹形状朝向一致。
三个喷臂31的每组喷孔311构成特征的长幅外摆线运动轨迹，其特征与实施例四的描述一致，这里不再赘述。并且，由于三组喷孔311的运动轨迹之间相位差为90°和180°，因此三组轨迹线形状朝向一致，三组叠加成更加密集的喷孔311运动轨迹，在正方形喷洗区域内形成更好的洗涤覆盖效果。
实施例七
如图15所示，在本实施例中，第一中心齿轮51和行星齿轮54的齿数比为1:5，喷臂体30具有五个喷臂31，即从行星齿轮54的中心向外伸出五个喷臂31。其中，相邻两个喷臂31之间相隔72°，每个喷臂31上分别开设一组喷孔311，根据第一中心齿轮51和行星齿轮54的齿数比1:5和外啮合关系，五个喷臂31的运动轨迹之间具有相位差角度，等于 喷臂31间相位差角度72°的5/4，即90°，因此五组运动轨迹形状朝向一致。
五个喷臂31的每组喷孔311构成特征的长幅外摆线运动轨迹，其特征与实施例四的描述一致，这里不再赘述。并且，由于五组喷孔311的运动轨迹之间相位差为90°，因此五组轨迹线形状朝向一致，最终叠加成非常密集的喷孔311运动轨迹，在正方形喷洗区域内形成十分好的洗涤覆盖效果。
由此，该洗碗机的喷臂组件100可以通过调整喷臂31的数量以及喷孔311的数量等实现更好的洗涤覆盖效果，保证该洗碗机的喷臂组件100的正方形喷洗区域与洗碗机的正方形内胆适配，保证全方位、多角度的洗净率。
根据本发明第二方面实施例的洗碗机，包括根据上述实施例的洗碗机的喷臂组件100。由于根据本发明实施例的洗碗机的喷臂组件100具有上述技术效果，因此，根据本申请实施例的洗碗机也具有上述技术效果，即该洗碗机的结构简单、洗涤覆盖面广，可以形成与洗碗机的方形内胆适配的方形喷洗区域(例如正方形、长方形)，解决相关技术中的洗碗机清洗不到内胆死角的问题，洗涤效果好，用户体验高。
根据本发明实施例的洗碗机的其他构成以及操作对于本领域普通技术人员而言都是已知的，这里不再详细描述。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接或彼此可通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第 一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (15)

  1. 一种洗碗机的喷臂组件，其特征在于，包括：
    底壳，所述底壳内限定有储水腔，所述底壳具有与所述储水腔导通的进水口；
    喷臂座，所述喷臂座可转动地设在所述底壳上，所述喷臂座具有与所述储水腔导通的进水通道；
    喷臂体，所述喷臂体具有至少一个喷臂，所述喷臂体可转动地设在所述喷臂座上且所述喷臂体的旋转中心相对于所述喷臂座的旋转中心偏心设置，所述喷臂体具有多个间隔开布置的喷孔，每个所述喷孔分别与所述进水通道导通；
    驱动器，所述驱动器分别与所述喷臂体和所述喷臂座相连以驱动所述喷臂体和所述喷臂座分别绕其对应的旋转中心转动。
  2. 根据权利要求1所述的洗碗机的喷臂组件，其特征在于，还包括：
    主动传动件，所述主动传动件与所述驱动器和所述喷臂体相连，所述主动传动件由所述驱动器驱动并驱动所述喷臂体转动；
    从动传动件，所述从动传动件与所述主动传动件和所述喷臂座相连，所述从动传动件由所述主动传动件驱动并驱动所述喷臂座转动。
  3. 根据权利要求2所述的洗碗机的喷臂组件，其特征在于，所述主动传动件包括第一中心齿轮和驱动轴，所述驱动轴的一端与所述驱动器相连，所述第一中心齿轮与所述驱动轴的另一端相连，所述第一中心齿轮与所述驱动轴同轴设置并由所述驱动轴驱动，所述喷臂体上形成有与所述第一中心齿轮啮合的行星齿轮。
  4. 根据权利要求3所述的洗碗机的喷臂组件，其特征在于，所述第一中心齿轮与所述行星齿轮的齿数比为1：3。
  5. 根据权利要求3所述的洗碗机的喷臂组件，其特征在于，所述第一中心齿轮与所述行星齿轮的齿数比为1：5。
  6. 根据权利要求3所述的洗碗机的喷臂组件，其特征在于，所述从动传动件形成为设在所述底壳上的第一齿轮，所述驱动轴的一端设有与所述第一齿轮啮合的第二中心齿轮，所述喷臂座上设有与所述第一齿轮啮合的第二齿轮，所述第二中心齿轮与所述第一齿轮和第二齿轮配合驱动所述喷臂座转动。
  7. 根据权利要求6所述的洗碗机的喷臂组件，其特征在于，所述喷臂座具有穿过所述底壳向下延伸的安装部，所述安装部形成为与所述驱动轴同轴设置的中空柱状，所述驱动轴的上端穿过所述安装部与所述第一中心齿轮相连，所述驱动轴的下端设有所述第二中心齿轮，所述第一齿轮设在所述底壳的底部，所述安装部的下端设有所述第二齿轮。
  8. 根据权利要求7所述的洗碗机的喷臂组件，其特征在于，所述驱动轴的上端设有多个间隔开布置的凹槽，所述第一中心齿轮的内圈设有多个与所述凹槽配合的凸起。
  9. 根据权利要求6所述的洗碗机的喷臂组件，其特征在于，所述驱动轴的与所述第一中心齿轮配合的一端形成花键轴，所述花键轴与所述第一中心齿轮卡接相连。
  10. 根据权利要求6所述的洗碗机的喷臂组件，其特征在于，所述喷臂座为回转体，所述喷臂座的中心轴线与所述底壳和所述驱动轴的中心轴线重合。
  11. 根据权利要求10所述的洗碗机的喷臂组件，其特征在于，所述喷臂座上设有相对于所述喷臂座的旋转中心偏心设置的安装柱，所述安装柱内限定有所述进水通道，所述喷臂体套设在所述安装柱上且相对于所述安装柱可转动。
  12. 根据权利要求11所述的洗碗机的喷臂组件，其特征在于，所述安装柱上设有多个间隔开布置的卡舌，所述喷臂体的内壁设有与所述卡舌配合的安装槽。
  13. 根据权利要求6所述的洗碗机的喷臂组件，其特征在于，还包括压板，所述压板设在所述底壳的上方且与所述底壳相连，所述压板的至少一部分压设在所述喷臂座上。
  14. 根据权利要求7所述的洗碗机的喷臂组件，其特征在于，所述第二中心齿轮与所述驱动轴一体形成，所述行星齿轮与所述喷臂体一体形成，所述第二齿轮与所述喷臂座一体形成。
  15. 一种洗碗机，其特征在于，包括根据权利要求1-14中任一项所述的洗碗机的喷臂组件。
PCT/CN2015/096165 2015-12-01 2015-12-01 洗碗机的喷臂组件和具有其的洗碗机 WO2017091982A1 (zh)

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