Cooking appliance
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Solution Overview
Problem
Existing cooking appliances with built-in cameras face challenges in capturing images of large food items or food located at the top of the cooking chamber while maintaining effective electromagnetic shielding to prevent electromagnetic leakage.
Innovation Solution
The cooking appliance features a camera positioned outside the cavity with an open hole in a polygonal shape or surrounded by a shielding protrusion, allowing for an expanded field of view without increasing the risk of electromagnetic leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the camera is positioned inside the cooking chamber to capture images of food, then the viewing angle and image quality improve, but electromagnetic shielding effectiveness deteriorates due to potential electromagnetic leakage through the camera opening
Solution Approach 1:
A shielding plate is introduced as an intermediary component between the camera and the cooking chamber interior. The shielding plate includes a through-hole that allows the camera to capture images while maintaining electromagnetic shielding. The plate is positioned at the opening of the cooking chamber, creating a barrier that blocks electromagnetic waves from leaking through the camera mounting opening while still permitting optical transmission for image capture.
2Object-affected harmful factors
If the camera is positioned outside the cooking chamber to maintain electromagnetic shielding, then electromagnetic leakage is prevented, but the viewing angle and ability to capture food at the top of the chamber deteriorates
Solution Approach 1:
The camera is positioned in a different spatial dimension (outside the cooking chamber) while the shielding plate creates a new dimension (the through-hole aperture) that reconciles the contradiction. By moving the camera to the exterior and using the shielding plate with a strategically positioned through-hole, the system achieves both electromagnetic shielding and adequate viewing angle without compromising either requirement.
3Area of moving object
If a large opening is provided in the cavity for the camera to capture the entire cooking chamber, then the viewing angle improves, but electromagnetic shielding effectiveness deteriorates
Solution Approach 1:
The shielding plate introduces local quality differentiation by providing a precisely sized and shaped through-hole that allows optical transmission for image capture while blocking electromagnetic waves. The local opening in the shielding plate is optimized to provide sufficient field of view for the camera while maintaining electromagnetic shielding effectiveness, creating a localized solution that addresses both requirements simultaneously.
Data Source
AI summary
Disclosed is an invention related to a cooling appliance. The disclosed invention provides a cooking appliance including a cavity having a cooking chamber formed therein, and a camera disposed outside the cavity, wherein the camera includes a light receiving portion configured to allow light to pass through the inside of the camera, the cavity is formed with an open hole exposing the light receiving portion to the inside of the cooking chamber, and the open hole is formed in a polygonal shape, or surrounded by a protrusion protruding from the cavity.