Drainage pump and assembling method thereof, impeller device and heat exchange device

Abstract

The invention discloses a drainage pump. The drainage pump comprises a motor, wherein the motor comprises a stator (9), a rotor (11) and a motor shaft (12); the motor shaft (12) of the motor is connected with an impeller device, and drives the impeller device; and the impeller device is provided with an impeller (2) and a water retaining part (4) which are molded into a whole. By the structural design of the drainage pump, the number of parts and components is reduced, the assembly process is simplified, and the manufacturing efficiency is improved. Furthermore, the invention also discloses a heat exchange device comprising the drainage pump, the impeller device and a method for assembling the drainage pump.

Description

technical field [0001] The invention relates to the technical field of drain pumps, in particular to a drain pump for removing condensed water on an air conditioner; the invention also relates to a heat exchange device comprising the drain pump. Background technique [0002] During the cooling process of the indoor unit of the air conditioner, a large amount of condensed water will be generated on the surface of the heat exchanger, so a drain pump needs to be installed to remove the condensed water. [0003] Please refer to figure 1 , figure 2 with image 3 , figure 1 It is a schematic cross-sectional structure diagram of a typical drainage pump in the prior art; figure 2 It is a front structural schematic diagram of a typical drainage pump in the prior art; image 3 It is a top structural schematic diagram of a typical drainage pump in the prior art. [0004] Such as figure 1 As shown, the motor of the drainage pump includes a rotor 1', a stator 2' sleeved inside t...

AI Technical Summary

Problems solved by technology

This structure of the upper and lower pump bodies leads to an increase in the number of product parts, more assembly processes, and low production efficiency

[0006] In addition, if image 3 As shown, the protective cover 4', the connecting body 7' and the upper pump body 5' are connected by screws, and there will be a certain gap between the opening of the protective cover 4' and the connecting body 7', so water vapor will pass through the gap into the interior of the motor, causing water to enter the rotor 1' of the motor; figure 2 As shown, the peripheral side wall of the protective cover 4' is provided with an opening 8', and the power cord 9' of the motor is drawn out from the opening 8', so that water droplets or water vapor can also enter the inside of the motor from the opening 8', Resulting in water entering the rotor 1' of the motor

[0007] Water entering the rotor 1' of the motor will lead to serious consequences, such as rotor 1' being corroded, difficult to start or stuck, etc.

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