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drain pump

A drainage pump and outlet technology, applied in the direction of pumps, pump components, non-variable-capacity pumps, etc., can solve the problems of water flow turbulence, bubble bursting, vibration and noise, achieve uniform water flow, reduce turbulence, and suppress mixed flow Effect

Active Publication Date: 2019-01-11
FUJIKOKI MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] Utilize above-mentioned structure, obtain considerable effect aspect noise reduction effect, but in the invention of patent document 2, due to the water-repellent surface (the water-repellent surface 110 of large-diameter blade 60 and auxiliary blade 68) of rotating blade (large-diameter blade 60 and auxiliary blade 68) The water-repelling surface 111) of the blade 68 and the water-repelling surface (75, 85, 76, 86 described later) of the step portion (72, 82, 74, 84) serving as the guide portion have different relative flowing water incidence angles. The water flow will generate turbulent flow, the surrounding air will become bubbles and mix the flow, and the bubbles will burst, which sometimes produces slight vibration and noise

Method used

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Examples

Experimental program
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Effect test

no. 1 Embodiment

[0065] Figure 1 to Figure 5 It is a diagram showing the first embodiment of the rotary vane used in the drainage pump in the present invention, figure 1 is a perspective view showing the entire rotating blade, figure 2 yes figure 1 A top view of the rotating blade shown, image 3 yes figure 1 The front view of the rotating blade is shown, Figure 4 yes figure 1 The bottom view of the rotating blade shown, Figure 5 It is a plan view showing the detailed structure of one large-diameter blade among the rotating blades. In the description of the embodiment of the present invention, for the rotating blade having a guide portion ( Image 6 and Figure 7 ) are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0066] exist figure 1 The rotating blade 50 of the shown drainage pump 1 is provided with a plurality of large-diameter blades 60 connected to the small-diameter blade 54 for draining the drain water in the drain pan. ...

no. 2 Embodiment

[0080] Figure 9 It is a partially enlarged plan view of one large-diameter blade 60 of the second embodiment of the rotary blade 50 used in the drain pump 1 of the present invention. In the first embodiment, the upper end is formed obliquely with respect to the water-repellent surface 110 so that the incident angle of the flowing water Fb1 to the water-repellent surface 110 coincides with the incident angle of the flowing water Fb2 to the water-repellent surface 75 at the upper edge portion. Edge water-repelling surfaces 75A and 75B. However, in the second embodiment, on the contrary, in order to make the incident angle of the flowing water Fb2 with respect to the water-repellent surface 75 of the upper edge part coincide with the incident angle of the flowing water Fb1 with respect to the water-repellent surface 110, the upper edge part is configured to The water-repelling surface 75 is located on a surface including the centerline X1 centered on the rotation center O of th...

no. 3 Embodiment

[0082] Figure 13 It is a plan view showing a third embodiment of the rotary vane 50 used in the drainage pump of the present invention. Such as Figure 13 As shown, the guide portion 82 and the outer edge portion 81 as a stepped portion provided on the outer peripheral side of the large-diameter blade 60 and the guide portion 84 and the outer edge portion 83 as a stepped portion provided on the outer peripheral side of the auxiliary blade 68 are formed to have Specifies the curvature and has a circular state. That is, in the rotating blade 50 shown in the third embodiment, the surfaces of the large-diameter blade 60 and the auxiliary blade 68 from the water-repelling surfaces 110, 111 through the guide portions 82, 84 to the outer edge ends 81, 83 are the same as those in the first embodiment. Compared with Example 2, the formation is gentle.

[0083] Figure 15 (a) is Figure 13 The shown large-diameter blade 60 is a cross-sectional view of plane A-A. Similar to the gu...

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Abstract

The invention provides a drain pump capable of further improving running muting property; a spinning impeller (50) of the drain pump comprises the following elements: major diameter impellers (60) having a plurality of slab-shape water peddling planes (110)extending from a shaft portion (52) connected with a motor output shaft to radial directions; a plurality of slab-shape miner diameter impellers (54) connected with the lower rim of the major diameter impeller (60); auxiliary impellers (68) having water peddling surfaces (111) and arranged between adjacent major diameter impellers (60); the top rim and outer rim of the major diameter impeller (60) and auxiliary impellers (68) are provided with step portions (72, 74,82, 84) used for guiding impeller paddled water on the upper side and outer side of the impeller; top rim water paddling planes (75, 76) are formed in a regulated angle relative to the water paddling planes (110, 111); the water flow has approximately same enter angle relative to the water paddling planes (110, 111) and the top rim water paddling planes (75, 76) and the outer rim water paddling planes (85, 86).

Description

technical field [0001] The invention relates to a drainage pump, which discharges the drain water in the drain pan to the outside, and the drain pan receives the water condensed in the indoor heat exchanger of the air conditioner. Background technique [0002] Conventionally, an air conditioner of a type buried in an indoor ceiling is equipped with a drain pan for receiving drain water condensed on the surface of an indoor heat exchanger of the air conditioner. In order to discharge the drain water in the drain pan to the outside, a drain pump (drain pump) is used. [0003] Next, the applicant of the present application will describe the invention of the present application in relation to the drain pump used in the air conditioner (Patent Document 2) which has been filed and disclosed. Figure 11 It is a cut-away front view of a part of the drain pump described in Patent Document 2 as the prior art, Figure 12 (a) is Figure 11 A top view of an example of a rotating vane us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D1/14F04D29/24
Inventor 佐藤克司山开健治加藤友也
Owner FUJIKOKI MFG CO LTD