Cassette Air Conditioner Suction Grill for Non-Interfering Opening
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Solution Overview
Problem
The existing cassette type air conditioners have a suction grill structure that is limited by its rotatable design using a hinge as an axis, making it difficult to mount and open due to protruding edges or ends, which can interfere with the panel, hindering smooth operation and maintenance.
Innovation Solution
The indoor unit features a suction grill with a connection member that allows for sliding and rotating movement, enabling easy opening and closing without interference with the panel, and includes a rounded groove and protrusions for a unified appearance and efficient airflow, along with a lattice-shaped grill for smooth air suction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the suction grill is designed with a hinge for rotatable opening, then the suction grill can be opened for maintenance, but the protruding edges or ends of the suction grill interfere with the panel during rotation
Solution Approach 1:
A connection member is introduced as an intermediary between the suction grill and the panel. This connection member includes a rotating portion that pivots relative to the panel and a connecting portion that couples to the suction grill, allowing the suction grill to open without its edges interfering with the panel. The connection member acts as a mediator that decouples the direct rotational interference problem.
Solution Approach 2:
The opening mechanism is segmented into multiple components: the panel, the connection member with rotating and connecting portions, and the suction grill. This segmentation allows each component to perform its specific function - the connection member's rotating portion handles the pivoting motion while the connecting portion maintains coupling with the suction grill, avoiding interference issues.
2Productivity
If the suction grill is made large enough to cover the suction hole, then air suction efficiency is improved, but the suction grill becomes difficult to mount and open due to interference with the panel
Solution Approach 1:
The connection member serves as an intermediary that enables the large suction grill to be mounted and opened without interference. The rotating portion of the connection member allows the grill to pivot during opening while the connecting portion maintains secure coupling, solving the installability problem while preserving the large grill area needed for air suction efficiency.
Solution Approach 2:
The connection member introduces dynamic movement capability to the suction grill assembly. The rotating portion allows the grill to change its angular position during opening and closing operations, transforming a static mounting problem into a dynamic solution where the grill can move through a range of motion without interference.
Data Source
AI summary
An indoor device for a cassette type air conditioner is provided. In the indoor device for the cassette type air conditioner, an outer edge of a suction grill extends to form inner lines of a plurality of discharge holes of a panel, and the suction grill may be opened while slidably moving without interfering with the panel according to a shape thereof.