Heating pump and washing appliance
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Solution Overview
Problem
Traditional heating pumps for household appliances, such as dishwashers and washing machines, have complex structures and low pumping efficiency due to integrated heating and fluid devices, leading to increased energy consumption and friction obstacles.
Innovation Solution
A heating pump design featuring a pump housing with a flat, annular support portion for the heating element, which separates the heating element from the fluid, reducing friction and improving efficiency, combined with a thermal conductive plate and temperature control system for efficient heating and pumping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the heating element is mounted in an outer recess formed by protruding toward the fluid side, then the heating device and fluid device can be integrated together, but the larger friction area between the protrusion and the fluid creates a significant obstruction to the pumped fluid, resulting in lower pumping efficiency and greater energy consumption
Solution Approach 1:
Instead of making the heating element protrude into the fluid passage (which creates friction obstacles), the patent inverts the approach by recessing the heating element into the pump housing. The heating element is mounted in a recessed portion of the housing, allowing the fluid to flow smoothly over the heating element's outer surface without encountering protrusions. This inversion resolves the contradiction by maintaining integration while eliminating friction-induced efficiency losses.
2Device complexity
If the heating element is mounted in an outer recess formed by protruding toward the fluid side, then the heating device and fluid device can be integrated together, but the protrusion creates a significant obstruction to the pumped fluid, resulting in greater energy consumption
Solution Approach 1:
The patent applies inversion by recessing the heating element into the pump housing rather than protruding it into the fluid flow. This design allows the heating element to be integrated with the pump structure while its outer surface remains flush with or recessed from the housing, eliminating protrusions that would obstruct fluid flow and increase energy consumption.
3Adaptability or versatility
If a protrusion is formed on the inner side of the pump housing to mount the heating element, then the heating device can be integrated with the fluid device, but the larger friction area creates a significant obstruction to the pumped fluid
Solution Approach 1:
The patent inverts the conventional mounting approach by creating a recessed portion in the pump housing to accommodate the heating element, rather than forming a protrusion. This allows the heating element to be integrated with the pump housing while its outer surface remains flush with the housing interior, eliminating friction obstacles and maintaining high pumping efficiency.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution results in a simple, compact structure with enhanced pumping efficiency and reduced energy consumption, effectively addressing the complexity and inefficiency of prior designs.
Implementation Method 1
a heating element thermal-conductively mounted on the support portion
Implementation Method 2
a thermal conductive plate in heat conduction connection with the side surface and the support ring body
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A heating pump and a washing appliance. The heating pump includes a pump housing (1) and a pump cover assembly (2). The pump housing (1) includes an outlet and a side wall (11) extending around the outlet. The pump cover assembly (2) includes an annular support portion (21) covering the outlet and a heating element (22) thermal-conductively mounted on the support portion (21). The support portion (21) separates the heating element (22) from fluid in the heating pump, and a surface of the support portion (21) in contact with the fluid is flat. The heating pump and the washing appliance of the invention can heat the fluid while pumping, and are simply structured. The surface of the support portion in contact with the fluid is flat, thus reducing the friction between the fluid and the support portion, improving the pump efficiency and reducing the energy consumption.