Home Appliance Door Spring Mounting Without Interconnection Parts
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Solution Overview
Problem
Existing home appliances, such as dishwashers and cookers, face issues with door assembly due to the use of springs, which can cause damage and increase costs and complexity when interconnection elements are employed for connecting the door to the body.
Innovation Solution
A channel and back wall structure with a spring, hook, groove, and support elements allows for easy and reliable engagement of the door to the appliance body without interconnection elements, minimizing damage and enhancing durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If interconnection elements are used to connect the spring to the body and door, then the spring can be securely engaged, but the cost and assembly time increase
Solution Approach 1:
The patent removes the interconnection elements from the assembly by integrating the engagement function directly into the spring structure itself. The spring's hooks are designed to engage directly with the body and door without requiring separate interconnection components, thereby simplifying the device while maintaining secure engagement.
Solution Approach 2:
The patent combines the functions of the spring and interconnection elements into a single integrated component. The spring structure incorporates the engagement features that previously required separate interconnection elements, merging multiple functions into one element and reducing overall complexity.
2Reliability
If the spring is engaged via interconnection elements, then the spring can be connected to the body and door, but the assembly process becomes difficult and time-consuming
Solution Approach 1:
The patent eliminates the intermediate interconnection elements that slowed down assembly. The spring is designed to engage directly with the body and door through its hooks, removing the need for separate connection steps and significantly加快ing the assembly process while maintaining reliable connection.
Solution Approach 2:
The spring is pre-formed with hooks that are specifically shaped and positioned to engage directly with the body and door features. This preliminary design of the engagement features allows for quick and easy assembly without requiring additional components or complex assembly procedures.
3Ease of operation
If the spring exerts force during door movement, then the door can be held and controlled, but damage can be given to the body and door
Solution Approach 1:
The patent applies local quality by designing specific engagement features (grooves and hooks) at critical locations where the spring exerts force. These localized structural features distribute and control the spring force, enabling effective door control while preventing damage to the body and door through proper force management at key points.
Solution Approach 2:
The patent incorporates support elements and properly positions the spring to cushion and control the force it exerts during door movement. The spring is pre-positioned and supported to prevent excessive or uncontrolled forces that could cause damage, while still maintaining adequate control over door movement.
4Ease of manufacture
If the hook of the spring contacts the lower panel during engagement, then the spring can be assembled, but damage may occur to the lower panel
Solution Approach 1:
The patent designs specific engagement features (grooves and support elements) at the exact locations where the spring hook will contact the lower panel. These localized structural features guide the hook into proper engagement while distributing contact forces, enabling easy assembly without causing damage to the lower panel.
Solution Approach 2:
The patent introduces grooves and support elements as intermediary features between the spring hook and the lower panel. These intermediary structures facilitate the engagement process by providing guided pathways and support, allowing the hook to be inserted and engaged easily without directly contacting and potentially damaging the lower panel.
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 enables a robust, reliable, and cost-effective assembly of the door to the appliance body, reducing the risk of damage from spring forces and simplifying the assembly process.
Implementation Method 1
at least one spring which is placed in said channel, which has at least one hook provided in at least one end
Data Source
Figure 1
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AI summary
A home appliance of the present invention comprises a door being able to close a chamber of the home appliance; a lower panel (A), which comprises a channel (K), and a back wall (K1) extending upwards from a side of the channel (K) away from the door; and a spring (Y) which is placed in the channel (K), which comprises a hook (Y1), whose end having the hook (Y1) is engaged to said back wall (K1), whose other end is connected with the door; a groove (1) which is located in the back wall (K1) through which the hook (Y1) is passed; a hole (2) through which a hook end (Y2) is passed by moving away the channel after the hook (Y1) is passed through the groove (1); a side wall (K2) which extends from the back side of the back wall (K1) along the back wall (K1); a support element (3) whose edges are positioned at the back wall (K1) and the side wall (K2); a horizontal support rib (4) at the back side of the back wall (K1); a vertical support rib (5) which extends at the back side of the back wall to the outside being parallel to the side wall in both sides of the hole (2).