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Pump of washing device

A washing device and pump cavity technology, which is applied in the field of the pump of the washing device, can solve the problems of excessive space occupied by heating components, influence of the life of the heating tube, poor flow uniformity, etc., and achieves improved user experience, compact structure, and uniform thermal stress coupling. Effect

Pending Publication Date: 2020-04-07
QINGDAO HAIER DISHWASHER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the above-mentioned prior art has proposed a technical solution for preventing dry heating of the heat pump and the large volume and efficiency of the pump body, it still exists. When the liquid circulates in the pump body, the efficiency is low and the flow uniformity is poor; The installation in the body takes up too much space; there are technical defects in the installation of the heating tube of the heating component, which leads to uneven heating or excessive local stress due to thermal coupling, which affects the life of the heating tube, etc.

Method used

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  • Pump of washing device
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0135] like Figure 1 to Figure 13 As shown, the pump of a washing device described in this embodiment includes a pump body 1; the pump body 1 is provided with a pump chamber 2 for containing liquid; the pump body 1 is provided with a liquid inlet communicating with the pump chamber 2 Port 3 and liquid outlet 4; the pump chamber 2 is provided with an impeller 5 connected to the motor 6 through a rotating shaft; it also includes a heating device extending from the outside of the pump body 1 to the pump chamber 2 to heat the liquid in the pump chamber 2 Assembly 7; set on the pump body 1, the first pressure switch 8.1 connected to the heating assembly 7; the impeller 5 divides the pump chamber 2 into the first chamber 2.1 close to the liquid inlet 3 and the second chamber 2.1 away from the liquid inlet 3 The chamber 2.2 and the heating assembly 7 are set in the second chamber 2.2. When the liquid flows into the pump chamber 2 through the liquid inlet 3, it flows through the impe...

Embodiment 2

[0137] like Figure 1 to Figure 13 As shown, this embodiment is a further limitation of the first embodiment above. In the pump of a washing device described in this embodiment, the projection of the liquid outlet 4 in the pump chamber 2 at least covers the impeller 5 and part The heating component 7, by covering the impeller 5 and the setting of the heating component 7, enables the deposition liquid in the second chamber 2.2 to be effectively circulated, avoiding excessive deposition of liquid in the second chamber 2.2 causing poor circulation of the flow area , and then affect the use of the pump body 1.

Embodiment 3

[0139] like Figure 4 and Figure 5 As shown, this embodiment is a further limitation of the above-mentioned embodiment 1 or embodiment 2. In the pump of a washing device described in this embodiment, the heating assembly 7 includes a heating tube 7.1 and is arranged inside the heating tube 7.1. The fuse and heating wire; set in sequence and cooperate with the nut 7.3 through the passing bolt 7.2 to realize the first heating unit 7.4, the second heating unit 7.5 and the third heating unit 7.6 connecting the heating pipe 7.1 to the pump body 1, and re- The connection mode between the heating assembly 7 and the pump body 1 is defined, so that the heating assembly 7 is subjected to clamping force inside and outside the pump body 1, which improves the sealing performance of the device, and also makes the disassembly, repair, maintenance, and maintenance of the heating assembly 7 easy. The replacement of the pressure switch has been improved, enhancing the user experience.

[014...

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Abstract

The invention discloses a pump of a washing device. The pump comprises a pump body; the pump body forms a pump cavity for accommodating liquid through buckling of a first pump shell and a second pumpshell; the pump body is provided with a liquid inlet and a liquid outlet communicating with the pump cavity; and an impeller connected with a motor is arranged in the pump cavity. The pump further comprises a heating module, a temperature switch arranged on the pump body for monitoring the temperature of the liquid in the pump cavity, and a pressure induction part arranged on the pump body for inducing the liquid level in the pump cavity; the pump cavity is divided into a first cavity near the liquid inlet and a second cavity far from the liquid inlet by the impeller; a heating module is arranged in the second cavity; and a circulating hole is formed in an impeller main body for enabling the liquid in the second cavity to flow back to the impeller and flow out from the liquid outlet. The pump of the washing device reduces the size of the pump body, meanwhile, improves the flow area condition in the pump cavity through the structure improvement of the impeller, and prevents the problemcaused by thermal coupling through the structure change of the heating module.

Description

technical field [0001] The invention belongs to the technical field of household appliances, and in particular relates to a pump of a washing device. Background technique [0002] With the improvement of living standards, consumers have higher and higher requirements for quality of life, and thus higher and higher requirements for product quality, performance, user-friendly use, and intelligent operation. As an excellent product, dishwashers have gradually entered people's lives. At present, dishwasher technology generally uses a heat pump with integrated washing and heating functions. The pump body with heating function usually includes the upper and lower pump casings, installation The impeller in the pump casing, the motor used to drive the impeller to rotate, and the heating body used to heat the fluid, etc. Several existing heat pumps require a compact liquid-driven and heating component in the application scenario of a type of household appliance that is applied to li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D13/06F04D29/58F04D15/00F04D29/22F04D29/44F04D29/24F04D29/42F04D29/66A47L15/42
CPCA47L15/4225A47L15/4244A47L15/4285F04D13/06F04D15/00F04D29/2222F04D29/245F04D29/426F04D29/445F04D29/586F04D29/669
Inventor 徐双超董媛媛焦立业李涛杨林王科陈玉玲潘凤娟
Owner QINGDAO HAIER DISHWASHER
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