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Drain pump

A technology of drainage pump and waterproof cover, applied in the direction of pumps, pump components, pump devices, etc., can solve the problems of corrosion and poor movement of motor metal components, and achieve the effect of preventing corrosion and improving waterproofness.

Active Publication Date: 2015-07-01
FUJIKOKI MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, since the water drips from above the drain pump 39 and wets the motor 44, the motor 44 and its internal metal components may be corroded, resulting in malfunction.

Method used

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  • Drain pump
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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0074] Hereinafter, embodiments for implementing the present invention will be described in detail with reference to the accompanying drawings.

[0075] Figure 1 ~ Figure 3 Showing an embodiment of the drainage pump of the present invention, the drainage pump 1 roughly includes: a pump main body (pump casing) 3 in which a rotary vane 2 is incorporated, a motor 5 arranged above the pump main body 3, and a motor covering the upper part of the motor 5. An upper cover 6 and a lower cover 7 provided between the pump main body 3 and the motor 5 .

[0076] The pump main body 3 is used for sucking up the drainage stagnant in the drain pan (not shown) and discharging it outdoors, such as figure 2 As shown, there is a plastic casing 3a including: a pump chamber 3b for accommodating the rotary blade 2, a suction pipe 3c provided at the lower part of the pump chamber 3b, and a discharge pipe 3d extending horizontally from the pump chamber 3b. And, if figure 1 As shown in (b) and (c)...

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PUM

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Abstract

A drain pump is capable of improving water resistance and preventing metal components from corrosion due to dropping water. The drain pump (1) includes a pump main body (3) having rotating vane (2) inside, and a motor (5) arranged on the pump main body (3) and rotatingly driving the rotating vane (2), the motor (5) is composed of a moulding motor, a waterproof upper cover (6) for covering the metal components arranged on the upper surface side is covered on the motor, furthermore, a waterproof lower cover (7) for covering the metal components arranged on the lower surface side of the motor is arranged between the motor (5) and the pump main body (3).

Description

technical field [0001] The invention relates to a drainage pump, in particular to a pump installed in an air conditioner indoor unit for discharging the drainage generated in the evaporator during refrigeration or dehumidification to the outside. Background technique [0002] In the past, such as Figure 8 As shown, the split type air conditioner includes: an outdoor unit 32 with a compressor 34 and a condenser 35, and an indoor unit 33 with an expansion valve 36 and an evaporator 37 built in. The gas refrigerant is compressed by the compressor 34 and compressed by the condenser 35 The liquid is cooled to become a liquid, and the pressure of the liquid is lowered by the expansion valve 36, and the liquid is vaporized by the evaporator 37 to obtain the heat of vaporization, thereby cooling the room. In addition, arrows in the figure indicate the flow direction of the refrigerant. [0003] Here, in the indoor unit 33 of the above-mentioned air conditioner 31 , during cooling ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D13/06F04D29/08H02K5/10
CPCF04D13/06F04D13/08F04D29/08
Inventor 加藤友也根本伸一山开健治
Owner FUJIKOKI MFG CO LTD