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Spray arm assembly of dishwasher and dishwasher having same

A spray arm assembly and dishwasher technology, applied in the direction of tableware washing machine/rinsing machine, tableware washing machine/rinsing and rinsing machine parts, household utensils, etc., can solve the problem of reducing cleaning effect, insufficient washing, and washing dead zone and other problems, to achieve the effect of expanding the washing area, good washing effect and simple structure

Active Publication Date: 2019-04-02
FOSHAN SHUNDE MIDEA WASHING APPLIANCES MFG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the inner container of the dishwasher is usually close to a square, relying on the general rotating spray arm, the spray area is circular, and it is difficult to reach the front and rear areas of the dishwasher, and it is easy to form a washing dead zone, resulting in Insufficient washing occurs in the front and rear positions of the dishwasher, which greatly reduces the overall cleaning effect

Method used

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  • Spray arm assembly of dishwasher and dishwasher having same
  • Spray arm assembly of dishwasher and dishwasher having same
  • Spray arm assembly of dishwasher and dishwasher having same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] like Figure 1 to Figure 9 As shown, in this embodiment, the first central gear 51 is fixed at the central position of the bottom of the dishwasher liner, and a spline hole is opened on the inner wall of the first central gear 51, and four spline holes are arranged in the spline hole. Protrusion 511, when installing, insert the first central gear 51 on the spline shaft of the drive shaft 52 until the four protrusions 511 buckle the four grooves 521 on the spline shaft to realize the first central gear 51 and the drive shaft 52 fixed connections. The water storage chamber 11 of the bottom case 10 is an annular flow channel, 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 roughly along the tangential direction, and then flows along the annular flow channel to fill the entire The water storage chamber 11 finally flows out from the water inlet channel 21 of the spray arm base 20 and flows ...

Embodiment 2

[0090] like Figure 10 As shown, in this embodiment, 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, two spray arms 31 extend outward from the center of the planetary gear 54. Spray arms 31, and the two spray arms 31 are arranged diagonally, with a phase difference angle of 180°, and a group of spray holes 311 are set on the two spray arms 31 respectively. According to the gear ratio 1:3 of the first central gear 51 and the planetary gear 54 and the external meshing relationship, there is a phase difference angle between the motion trajectories of the two spray arms 31, which is equal to 3 / of the phase difference angle between the two spray arms 31 2. Specifically, it is 270°, that is, the two groups of motion trajectories are perpendicular to each other.

[0091] The nozzle holes 311 on the two nozzle arms 31 respectively constitute characteristic long epicycloidal motion trajectories, which...

Embodiment 3

[0093] like Figure 11 As shown, in this embodiment, 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, three spray arms 31 protrude from the center of the planetary gear 54 Spray arm 31. Two pairs of the three spray arms 31 are separated by 120°. Each spray arm 31 has a set of spray holes 311 respectively. There is a phase difference angle between the motion trajectories of the spray arms 31, which is equal to 3 / 2 of the phase difference angle between the spray arms 31, namely 180° and 360°.

[0094] Each group of nozzle holes 311 of the three spray arms 31 constitutes a characteristic long-width epicycloidal trajectory, and its characteristics are consistent with the description of Embodiment 1, and will not be repeated here. Moreover, since the phase differences between the motion trajectories of the three groups of nozzle holes 311 are 180° and 360°, the three groups of trajectory lines have...

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Abstract

The invention discloses a spraying arm assembly of a dish washing machine and the dish washing machine with the spraying arm assembly. The spraying arm assembly of the dish washing machine comprises a bottom case, a spraying arm seat, a spraying arm body and a driver. A water storage cavity is defined in the bottom case, and the bottom case is provided with a water inlet communicated with the water storage cavity. The spraying arm seat is rotationally arranged on the bottom case and provided with a water inflow channel communicated with the water storage cavity. The spraying arm body is provided with at least one spraying arm, the spraying arm body is rotationally arranged on the spraying arm seat, the rotating center of the spraying arm body is eccentrically arranged relative to the rotating center of the spraying arm seat, the spraying arm body is provided with multiple spraying holes, and each spraying hole is communicated with the water inflow channel. The driver is connected with the spraying arm body and the spraying arm seat to drive the spraying arm body and the spraying arm seat to rotate around the rotating centers corresponding to the spraying arm body and the spraying arm seat. According to the spraying arm assembly of the dish washing machine, each spraying hole of the spraying arm body is provided with an epicyclic motion track so that a spray-washing region can be close to be square, the washing area of the spraying arm assembly is expanded accordingly, the washing effect is good, and user experience is high.

Description

technical field [0001] The present invention relates to the technical field of dishwashers, and more particularly, to a spray arm assembly of a dishwasher and a dishwasher having the same. Background technique [0002] With the continuous improvement of people's living standards, the demand for intelligent household appliances is getting higher and higher. For example, household dishwashers can replace manual cleaning of tableware. Multiple spray arms rotate while spraying and washing tableware, combined with water reflection, Splash and run, etc., complete the covering washing of dishes in the dishwasher. However, because the inner container of the dishwasher is usually close to a square, relying on the general rotating spray arm, the spray area is circular, and it is difficult to reach the front and rear areas of the dishwasher, and it is easy to form a washing dead zone, resulting in Insufficient washing occurs in the front and rear positions of the dishwasher, which gre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A47L15/23A47L15/42
Inventor 黎铭峰高峰
Owner FOSHAN SHUNDE MIDEA WASHING APPLIANCES MFG CO LTD
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