Dishwashing machine with a pump with a brushless permanent magnet motor

A technology for permanent magnet motors and dishwashers, which is applied to the washing machine/rinsing machine of tableware, the parts of washing machine/rinsing and washing machine of tableware, machine/engine, etc. It can solve the problem that it is impossible to determine the running direction of the impeller of the pump, etc. problem, achieve the effect of saving power and reducing noise

Active Publication Date: 2010-03-31
BOSCH SIEMENS HAUSGERATE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the working principle of synchronous motors, it is inherently impossible to determine the direction of rotation of the pump's impeller

Method used

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  • Dishwashing machine with a pump with a brushless permanent magnet motor
  • Dishwashing machine with a pump with a brushless permanent magnet motor

Examples

Experimental program
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Effect test

Embodiment Construction

[0027] figure 1 The dishwasher 1 according to the invention is shown schematically in a sectional view. It includes a sink 2 in a known manner. The two spray arms 3 , 4 are likewise arranged in the known manner in the sink 2 and are associated in the known manner with a dish rack (not shown). Dishwashing solution incident on items to be washed (also not shown) is fed through the dishwashing tray 16 into the pump well 17 . The output of the pump well 17 is connected to the corresponding discharge pump 5 or circulation pump 6 via a line 12 or 13 respectively. The outlet of the circulation pump 6 is connected in known manner to the respective spray arm 3 or 4 via a line 8 or 9 respectively. The outlet of the drain pump 5 is connected to the outlet 20 of the dishwasher so that the dirty dishwashing fluid pumped by the drain pump 5 can be pumped via the line 18 to the household drain connection 19 provided in the wall 21, where it is necessary to overcome A defined height diffe...

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PUM

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Abstract

The invention relates to a dishwashing machine (1) having at least one conveying unit for conveying washing detergent, wherein the conveying unit has at least one pump with a brushless permanent magnet motor. The conveying unit has a first pump (5) and a second pump (6), each with a brushless permanent magnet motor, particularly a brushless direct current motor (Brushless DC, BLDC), and a shared controller electronic device (7) is provided for the first and the second pump of the conveying unit. The invention also relates to a controller electronic device (7) and a pump (5, 6; 30).

Description

technical field [0001] The invention relates to a dishwasher having at least one pumping device for pumping dishwashing solution, the pumping device having at least one pump with a brushless permanent magnet motor. The invention also relates to an electronic controller and a pump. Background technique [0002] Usually, the pump of the pumping device of the dishwasher is embodied as a shielded pole motor or a synchronous motor. The advantages of shielded pole motors are high pumping rates and a defined direction of rotation. This makes it possible to arrange the outlet tangentially on the pump housing. The problem with using shielded pole motors is that, for the most part, shielded pole motors are "dry running" units, which means expensive sealing measures are required. If the seal cannot be maintained, the pump may fail. [0003] Synchronous motors, on the other hand, are mostly "wet running" devices, which allow for a simpler mechanical design of the pump, since such ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47L15/42A47L15/46
CPCA47L2501/05A47L2401/08F04D13/06A47L15/46A47L15/4225F04D13/14A47L15/0049
Inventor M·罗森鲍尔H-D·罗斯托伊舍M·施蒂克尔
Owner BOSCH SIEMENS HAUSGERATE GMBH
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