Installation vibration damping device for two-head drainage pump of washing machine
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Solution Overview
Problem
Conventional drum washing machines with double-head drainage pumps face challenges in mounting complexity, increased manufacturing costs, and poor damping effects, leading to high vibration and noise due to uneven stress distribution and inadequate damping mechanisms.
Innovation Solution
A mounting damping device with a groove-shaped structure and elastic soft material is introduced, featuring a strengthened connector with staggered mounting parts and damping cavities to absorb vibrations and noise, ensuring effective damping and stability between the drainage pumps and the washing machine mounting plate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two drainage pumps are mounted separately to enable water recycling function, then the drainage function is improved, but the mounting complexity and manufacturing cost increase
Solution Approach 1:
The patent combines two separate drainage pumps into a single integrated double-head drainage pump unit. The pump body integrates two pump chambers that share a common motor and housing, allowing both drainage functions (direct drainage and water recycling) to be performed by one unified structure rather than two separate mounted units.
Solution Approach 2:
The double-head drainage pump is designed with multi-functionality to perform both direct drainage and water recycling operations through a single device. The pump can switch between different drainage modes by controlling which outlet is active, eliminating the need for separate dedicated pumps for each function.
2Ease of operation
If the drainage pump is directly fixed to the bottom plate with screws or rubber washer, then the mounting is simple, but the damping effect is poor and vibration noise increases
Solution Approach 1:
The patent introduces a mounting damping device as an intermediary component between the drainage pump and the bottom plate. This damping device includes a damping cushion and a mounting bracket that collectively serve as a mediator to reduce vibration transmission while maintaining secure mounting.
Solution Approach 2:
The mounting damping device incorporates a damping cushion made of elastic material that is installed beforehand between the pump mounting bracket and the bottom plate. This cushioning element is designed to absorb and attenuate vibrations before they can be transmitted to the washing machine body, preventing noise and vibration issues.
3Device complexity
If a conventional mounting structure is used for the drainage pump, then the structure is simple, but the vibration transfer to the washing machine body cannot be avoided
Solution Approach 1:
The mounting damping device acts as an intermediary layer between the rigid pump structure and the washing machine body. It includes a damping cushion and mounting bracket that together provide vibration isolation while maintaining structural stability and securing the pump in place.
Solution Approach 2:
The mounting damping device combines different materials with complementary properties: a rigid mounting bracket for structural support and attachment, and an elastic damping cushion material for vibration absorption. This composite structure achieves both mechanical strength and vibration isolation.
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 significantly reduces noise and vibration, enhances user experience, and simplifies the mounting process while maintaining structural integrity and stability, thus improving the overall quality and usability of the washing machine.
Implementation Method 1
A washing machine is provided comprising a washing machine mounting plate, a double-head drainage pump and at least one mounting damping device... the mounting damping device used for relieving vibration of the double-head drainage pump is arranged between the strengthened connector and the washing machine mounting plate... made of an elastic soft material
Implementation Method 2
the mounting damping device used for relieving vibration of the double-head drainage pump... significantly reduces noise and vibration
Data Source
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AI summary
The present disclosure discloses a mounting damping device (14) of a double-head drainage pump of a washing machine. The double-head drainage pump comprises at least two drainage pumps sharing one water inlet (8), the two drainage pumps are integrally connected with each other through a strengthened connector (11), the strengthened connector (11) is mounted on a washing machine mounting plate (12), and the mounting damping device used for relieving vibration of the double-head drainage pump is arranged between the strengthened connector (11) and the washing machine mounting plate (12). The mounting damping device (14) disclosed by the present disclosure is easy to mount, has very good damping effects and limiting action, reduces the noise of the washing machine, brings user good feelings and increases the recognition degree of the user to a brand.