household appliances

A technology for household appliances and containers, which is used in household appliances, household cleaning devices, applications, etc., can solve the problems of complex cost of metering pumps, and achieve the effects of good force balance, reduced friction, and good bending force.

Active Publication Date: 2020-08-04
BOSCH SIEMENS HAUSGERATE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] A disadvantage of the prior art is that the metering pumps have to be produced relatively complex and cost-intensive, since they have a large number of individual components, which have to be individually assembled and arranged in a functional state.

Method used

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  • household appliances
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Examples

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Embodiment Construction

[0034] figure 1 A schematic illustration of the movement of the eccentric worm 105 is shown. In contrast to rotary piston pumps which have two moving rotor parts (as are found, for example, in gear pumps or gear helices), wherein the rotor parts only perform a rotational movement about their own axis and Correspondingly simple to mount and drive), in the eccentric worm pump 101 the eccentric worm 105 performs, in addition to its own rotation about the axis of symmetry 107 , an additional movement on the cylindrical housing that is superimposed on this rotation. The isolated rotational motion in the figure 1 is shown by circular orbits in the x-y plane. The rolling motion superimposed on the rotary motion causes a resultant motion of the eccentric worm 105 which in figure 1 The center is marked by multiple single arrows on a circular orbit. Preference is given here to a configuration based on a 2:1 hypocycloid, in which the rotational frequencies are opposite and result in ...

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Abstract

Household appliance with an eccentric worm pump (101), wherein the eccentric worm pump (101) comprises a stator (108) and a movable rotor (102), the rotor corresponding to the stator (108), wherein the The rotor (102) has an eccentric worm (105) and a drive shaft (109) for driving the eccentric worm (105), wherein the drive shaft (109) is flexible and integral with the eccentric worm (105) ground structure.

Description

technical field [0001] The invention relates to a household appliance, in particular a washing machine or washing machine. Background technique [0002] In domestic appliances of this type, a simple and inexpensive dosing pump for fluids, in particular for liquid detergents, is advantageous in order to be used as a dosing system in the domestic appliance. Different variants of metering systems are known here, such as positive displacement pumps (gear pumps, hose pumps or piston pumps). So-called eccentric worm pumps are also known, which are often used for a variety of purposes. Furthermore, so-called Archimedes screws are known, which have only one single moving part in the form of a worm, which, however, are not volumetric machines and cannot be used for the current purpose. In addition, worm pumps are known which have a plurality of nested worms which are designed in particular with two but alternatively also with four worms. However, these solutions are technically v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C2/107D06F39/02F04C15/00
CPCA47L15/4418D06F39/022F04C2/1071F04C2/1073F04C15/0061
Inventor H·埃格迈尔M·迈茨纳
Owner BOSCH SIEMENS HAUSGERATE GMBH
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