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Motor and household electrical appliance with motor

A technology for household appliances and motor casings, which is applied in the fields of dishwashers or washing machines, cooling fans, and range hoods to achieve the effect of reducing volume and saving material costs

Inactive Publication Date: 2016-11-23
BSH ELECTRICAL APPLIANCES JIANGSU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, how to dissipate heat more effectively is a problem that needs to be solved for motors with closed motor housings.

Method used

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  • Motor and household electrical appliance with motor
  • Motor and household electrical appliance with motor
  • Motor and household electrical appliance with motor

Examples

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Effect test

Embodiment Construction

[0024] figure 1 The dishwasher GS shown comprises an interior IR serving as a washing container which can be opened and closed by means of a door (not shown) which can be pivotally connected to the dishwasher GS for loading and Uninstallation purpose. A cutlery basket GK for receiving items to be cleaned is provided in the interior space IR of the dishwasher GS, and the items to be cleaned are removable from the interior space IR of the dishwasher GS for loading and unloading.

[0025] In order to clean the items to be cleaned stored in the cutlery basket GK, a spray device embodied as a spray arm SA for applying a fluid to the items to be cleaned is arranged in the interior IR of the dishwasher GS, wherein the fluid It can be water to which, for example, a cleaning agent or a rinse base has been applied, in order thereby to achieve a cleaning action and / or a spot-free drying of the items to be cleaned. Fluid dripping from the items to be cleaned collects in a pump sump PS w...

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Abstract

The invention provides a motor and a household electrical appliance with the motor. The motor comprises a motor shell which is internally provided with a stator and a rotor; a motor rotating shaft which penetrates through the rotor to be arranged in the motor shell; a bearing which is used for bearing the motor rotating shaft; and cooling fans which sleeve the motor rotating shaft and are driven to rotate by the motor rotating shaft, wherein the cooling fans include a first cooling fan and a second cooling fan, and the first cooling fan and the second cooling fan are arranged in a coordinated way. When the motor works, the first cooling fan rotates to drive the air to axially flow in a way of being parallel to the motor rotating shaft along a first flow space formed by the stator and the motor shell, and the second cooling fan rotates to drive the air to axially flow in a way of being parallel to the motor rotating shaft along a second flow space formed by the stator and the rotor. The first cooling fan and the second cooling fan are opposite in the direction of driving the air to axially flow. Therefore, the heat in the motor is transferred to the motor shell and radiated out of the motor so that the effect of greatly reducing internal temperature of the motor can be achieved.

Description

technical field [0001] The invention relates to a motor, in particular to a cooling fan of the motor. [0002] The invention also relates to a domestic appliance, in particular a cooker hood, a dishwasher or a washing machine, having an electric motor as described above. Background technique [0003] The main structure of a general motor is a motor casing, a stator and a rotor arranged in the motor casing. The rotating shaft driven by the motor passes through the rotor, is carried by the bearing and installed in the motor housing. When the motor is running, losses are generated due to the alternating electromagnetic field inside the machine or air friction, and these losses are converted into heat, resulting in an increase in the temperature inside the motor casing. In order to ensure the normal operation of the motor within the specified temperature limit, certain measures must be taken during the design of the motor to try to dissipate the heat to the outside of the moto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K9/06H02K9/08
Inventor 李正伟于健蒋星赵天峰
Owner BSH ELECTRICAL APPLIANCES JIANGSU
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