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Pump of washing device

A washing device and pump cavity technology, which is applied in the pump field of the washing device, can solve the problems of excessive space occupied by heating components, influence of heating pipe life, poor flow uniformity, etc., to improve user experience, avoid dry burning problems, and thermal stress Coupling even 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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0112] 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

[0114] 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 assembly 7, by covering the impeller 5 and the setting of the heating assembly 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

[0116] like Figure 4 and Figure 5As 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.

[0117...

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Abstract

The invention discloses a pump of a washing device. The pump comprises a pump body, a pump cavity for containing liquid is formed in the pump body, a liquid inlet and a liquid outlet communicating with the pump cavity are formed in the pump body, an impeller connected with a motor is arranged in the pump cavity, a heating assembly extending towards the interior of the pump cavity from the outer portion of the pump body and capable of heating the liquid in the pump cavity, a temperature switch for monitoring the temperature of liquid in the pump cavity and a pressure induction part for inducingthe liquid level in the pump cavity are further included, the impeller divides the pump cavity into a first cavity close to the liquid inlet and a second cavity away from the liquid inlet, and the heating assembly is arranged in the second cavity. According to the pump of the washing device, the size of the pump body is reduced, meanwhile, through improving of the structure of the impeller, the flow area condition in the pump cavity is improved, the flow is more uniform, meanwhile, through structure changes of the heating assembly, a hot field in the pump cavity becomes more uniform, and problems caused by heat coupling can be solved.

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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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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