Water drainage pump

A drainage pump and impeller technology, applied to pumps, pump devices, pump components, etc., can solve problems such as insufficient starting force, impact noise, customer dissatisfaction, cracks in the impeller 50 of the rotating shaft head, etc., to minimize damage and minimize noise the effect of

Inactive Publication Date: 2006-12-27
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] However, in the structure of the above-mentioned drain pump according to the prior art, even if the rotation direction of the above-mentioned rotor 30 is changed, the starting force for driving the rotation shaft head 60 of the impeller head 51a is still insufficient, so that the rotation direction of the rotor 30 is reversed. The phenomenon of conversion persistence
[0018] Therefore, there is cont

Method used

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Examples

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Example Embodiment

[0049] Below, will refer to Figure 5 to Figure 9 , the possible embodiments of the drainage pump according to the present invention will be described in more detail.

[0050] first, Figure 5 and Image 6 A drain pump according to an embodiment of the present invention is shown.

[0051] That is, the drainage pump according to the embodiment of the present invention generally includes the following components: the casing 100; the impeller 500; the rotating shaft 400; and the driving force transmission device.

[0052] Here, the casing 100 includes an impeller accommodating portion 110 for accommodating the impeller 500 and a rotor accommodating portion 120 for accommodating the rotor 300, and the casing constitutes the appearance of the drain pump.

[0053] At this time, the rotor accommodating portion 120 includes a rotor 300 made of permanent magnets. The stator 200 is provided on the outer periphery of the rotor housing portion 120 .

[0054] In addition, a suction port...

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Abstract

The invention relates to a discharging pump used in washing machine, wherein the invention improves the driving force transmission structure between blade wheel and rotation axle to drive the blade wheel successfully, and reduce the impact possibility, to reduce noise and avoid hurting fittings. And the invention is formed by: blade wheel whose one part of inner circumference has protruded blade wheel head; frame with blade wheel containing part and rotor containing part; rotation axle formed along the axial center of rotor; and driving force transmitter. Said driving force transmitter is combined with rotation axle; when the rotation axle rotates to reach some starting force, via the circle center force, the rotation axle will be suspended with the blade wheel head to rotate the blade wheel.

Description

technical field [0001] The present invention relates to a drain pump for a washing machine, and more particularly, to a drain pump for a washing machine which can operate smoothly by minimizing the restraint force at the initial start-up. Background technique [0002] Generally speaking, a washing machine is a machine that automatically washes various kinds of laundry. Furthermore, the washing machine includes a drain pump that can automatically complete the draining operation of the washing water used for washing. [0003] figure 1 It is a perspective view showing the external structure of a conventional general drain pump. figure 2 is to show figure 1 The I-I line profile. image 3 is to show figure 2 The partial cutaway exploded oblique view of the impeller head and the rotating shaft head. Figure 4 It shows the running relationship between the impeller head and the rotating shaft head figure 2 The II-II line sectional view. [0004] That is, the conventional ...

Claims

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Application Information

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IPC IPC(8): F04D13/06F04D29/18D06F39/08
Inventor 曹基喆
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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