Heating cooking apparatus
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Solution Overview
Problem
There is a demand to accurately maintain the degree of parallelism between the second face of the lid portion and the first face of the housing in a drawer type heating cooking apparatus, especially when the drawer body is retracted into the heating cooking chamber.
Innovation Solution
The apparatus includes a housing, a lid portion, a moving member, connecting members, and a pivoting mechanism, where the lid portion is connected to the housing and can pivot about a rotation axis, ensuring precise alignment and contact between the second face and the first face.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the lid portion is directly connected to the housing without a pivoting mechanism, then the structure is simpler, but the parallelism between the second face of the lid portion and the first face of the housing cannot be accurately retained
Solution Approach 1:
The pivoting mechanism allows the lid portion to rotate about a rotation axis, changing its angular parameter to achieve accurate parallelism with the housing when closed, while the connecting members maintain the geometric relationship to ensure consistent alignment
Solution Approach 2:
The lid portion is designed to be movable rather than fixed, allowing it to pivot into the correct position. The pivoting mechanism provides dynamic adjustment capability to achieve and maintain accurate parallelism between the lid's second face and the housing's first face
2Reliability
If the lid portion is held in close contact with the housing opening, then the sealing is improved, but the parallelism between the faces becomes difficult to control accurately
Solution Approach 1:
The lid portion pivots into the closed position rather than being rigidly fixed, allowing dynamic adjustment to achieve both accurate parallelism and proper contact with the housing opening for sealing
Solution Approach 2:
The pivoting mechanism changes the angular parameter of the lid portion to achieve the optimal position where both parallelism and sealing contact are satisfied simultaneously
Data Source
AI summary
A heating cooking apparatus (100) includes a housing (1), a lid portion (21), a moving member (25), at least two connecting members (60), and a pivoting mechanism (30). The housing (1) includes an opening and a first face disposed on an outer periphery of the opening. The lid portion (21) includes a second face (21B) facing the first face, and a fixing member (26) fixed to the second face (2B). The moving member (25) moves along a first direction (D1) with respect to the housing (1). At least two connecting members (60) connect the housing (1) and the lid portion (21) when the lid portion (21) is placed at a position where the lid portion (21) covers the opening. The pivoting mechanism (30) couples the fixing member (26) of the lid portion (21) and the moving member (25) such that the lid portion (21) pivots about a rotation axis extending along a second direction intersecting with the first direction (D1).