Oven Door Cable Channel for Heat and Stress Protection
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Solution Overview
Problem
Cables connecting the control unit and indicator on oven doors are prone to deformation due to heat and humidity, and existing solutions fail to adequately protect them from mechanical stress during door operation.
Innovation Solution
A cable channel is integrated into the oven door's frame between the outer and inner glass plates, with extensions forming the channel walls and a removable protector that covers the cables, along with a cable retainer to secure the cables during door movement, preventing deformation and exposure to heat and humidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cables are passed through the hinge area to connect the control unit and indicator on the door, then electrical connections are established, but the cables are subjected to deformation by being squeezed and loosening during door opening/closing
Solution Approach 1:
The cable protection system is divided into multiple segments: the cable channel in the frame, the protector covering the cable, and the cable retainer. This segmentation allows each component to perform its specific function independently, protecting the cable from mechanical stress while maintaining electrical connectivity.
Solution Approach 2:
The cable channel acts as an intermediary structure between the hinge area and the control unit/indicator. It provides a dedicated pathway that isolates the cable from direct mechanical stress during door operation, while still allowing necessary electrical connections.
2Reliability
If cables are placed inside the oven to supply control unit and indicator, then electrical power and data are transmitted, but the cables are exposed to high temperatures and humidity causing deformation
Solution Approach 1:
The cable routing is segmented into two distinct zones: the cable channel in the frame (outside the oven cavity) and the hinge area. This segmentation prevents the cable from being exposed to harmful heat and humidity inside the oven while maintaining electrical transmission functionality.
Solution Approach 2:
The cable channel serves as an intermediary pathway that routes cables away from the high-temperature oven interior. By placing the cable channel in the frame between the glass plates, it mediates between the need for electrical transmission and the need to protect cables from thermal and humidity exposure.
3Reliability
If cables are routed through the door structure, then connections are made, but the cables become inaccessible for maintenance and replacement
Solution Approach 1:
The protector is designed to be removable from the cable channel, allowing the cable to be extracted and accessed for maintenance. This taking out approach enables repair personnel to easily reach and replace cables without disassembling the entire door structure, while maintaining reliable connections during normal operation.
Solution Approach 2:
The cable protection system incorporates dynamic accessibility - the protector can be in a closed state during operation to protect the cable, and can be opened when maintenance is needed. This dynamic characteristic allows the system to adapt between operational reliability and ease of repair requirements.
Data Source
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AI summary
The present invention relates to an oven (1) comprising a body (2), a cooking chamber (3) that is disposed inside the body (2), a door (4) that provides access to the cooking chamber (3), a control unit (5) disposed on the door (4), an indicator (6) disposed on the door (4), a cable (19) that provides electric current and data transmission to the control unit (5) and/or the indicator (6), and a frame (7) having an outer glass plate (8) disposed on the outer surface thereof, an inner glass plate (9) placed on the inner surface thereof, an upper profile (10), two side profiles (11) and a lower profile (12), and a cable channel (13) that is disposed on the surface of the side profile (11) of the frame (7) remaining between the outer glass plate (8) and the inner glass plate (9) and wherein the cable (19) is placed.