Washing machine comprising an injection nozzle
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Solution Overview
Problem
Existing washing machines face issues with the stable fixation of wash water injection nozzles due to their ductility and the effects of wash water pressure and drum vibration, leading to potential leakage and positional changes during operation.
Innovation Solution
The implementation of an injection device with a fastener that penetrates the gasket to securely fix the injection nozzle, combined with an injection guide that supports the nozzle and fastener, ensuring they are spaced apart and coupled to prevent directional changes, thus maintaining a stable wash water injection direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the injection nozzle is installed to the gasket made of high ductility material, then the injection device can be easily installed, but the injection nozzle may change direction and cause leakage during operation
Solution Approach 1:
The injection device is divided into separate components: the injection nozzle, the injection guide, and the fastener. This segmentation allows the nozzle to be easily installed through the gasket while the fastener provides separate, reliable fixation by penetrating the gasket to secure the assembly in place, preventing directional changes during operation.
Solution Approach 2:
The injection guide acts as an intermediary component between the injection nozzle and the gasket. It provides a stable mounting structure that guides wash water while allowing the fastener to securely attach the assembly to the gasket, thus maintaining both ease of installation and fixation stability.
2Productivity
If the injection nozzle is fixed to the gasket, then wash water can be injected, but the injection pressure and drum vibration may change the position of the injection nozzle
Solution Approach 1:
By separating the injection nozzle from the fixation mechanism, the design allows the nozzle to remain stationary and properly positioned while the fastener provides secure attachment that resists displacement from injection pressure and drum vibration.
Solution Approach 2:
The fastener penetrates the gasket to provide anchoring that counteracts the forces generated during washing operation, maintaining the nozzle's position stability despite pressure and vibration effects.
3Ease of operation
If the injection nozzle penetrates the gasket, then wash water can be injected into the tub, but leakage may occur due to direction change of the injection nozzle
Solution Approach 1:
The injection device is segmented into the nozzle, guide, and fastener components. This segmentation ensures that the nozzle maintains a fixed direction for proper wash water injection while the fastener prevents leakage by securing the assembly against directional changes.
Solution Approach 2:
The injection guide serves as an intermediary that maintains the nozzle's orientation and position, ensuring proper injection function while preventing the directional changes that would cause leakage.
Data Source
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AI summary
A washing machine is provided. The washing machine includes a cabinet (10) having an opening, a tub (20) placed within the cabinet, a drum (30) rotatably placed within the tub, a gasket (80) connecting the tub (20) and the cabinet (10) to each other to reduce vibration of the tub to be transmitted to the cabinet during rotation of the drum (30), and an injection device (100) configured to inject wash water into the tub. The injection device includes an injection nozzle (110) into which wash water is introduced, the injection nozzle penetrating the gasket (80), an injection guide (120) configured to guide wash water introduced through the injection nozzle (110) so as to inject the wash water, and a fastener (130) penetrating the gasket (80) to fix a position of the injection nozzle. The washing machine configuration ensures easy coupling of the injection device and prevent change in the direction of the injection device.