Damper-Integrated Blower Vane Module for Better Airtightness
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Solution Overview
Problem
Conventional damper blowers for compact and slim type heat recovery ventilators face issues with airtightness due to accumulation of foreign materials and dust on gaskets, noise generation from air flow resistance, complex design due to protrusions, and high manufacturing costs.
Innovation Solution
A damper-integrated blower with a single plate vane module mounted integrally with the exhaust port, utilizing a compact damper motor and a gasket with a wind shielding frame to improve airtightness and reduce noise, and a simplified design that eliminates the need for multiple vanes and external components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple vanes are used to block air flow, then the damper function is achieved, but airtightness deteriorates due to gasket accumulation of foreign materials and dust
Solution Approach 1:
The single plate vane is divided into multiple segmentation lines that allow the plate to bend and conform to the exhaust port shape, creating effective sealing surfaces without requiring multiple separate vanes and gaskets
Solution Approach 2:
The invention extracts and eliminates the complex multi-vane structure with its associated gaskets, retaining only the essential single plate vane that performs both the damper function and sealing function
2Reliability
If multiple vanes with gaskets are used, then the damper function is achieved, but noise increases due to air flow resistance
Solution Approach 1:
The single plate vane incorporates segmentation lines that enable the plate to bend and adapt to the exhaust port geometry, creating effective sealing without the need for multiple vanes that would create air flow resistance and noise
Solution Approach 2:
The invention removes the multiple vanes and gasket system that caused air flow resistance and noise, replacing it with a streamlined single plate vane that maintains the damper function while minimizing air flow interference
3Reliability
If multiple vanes and external components are used, then the damper function is achieved, but device complexity increases due to protrusions
Solution Approach 1:
The invention merges the single plate vane directly with the exhaust port structure, eliminating the need for separate vanes, gaskets, and external connection components, thereby simplifying the overall design and reducing protrusions
Solution Approach 2:
The invention extracts and eliminates the complex assembly of multiple vanes, gaskets, and external connection components, retaining only the essential single plate vane integrated with the exhaust port
4Reliability
If multiple vanes and gaskets are used, then the damper function is achieved, but manufacturing cost increases
Solution Approach 1:
The single plate vane uses segmentation lines to create effective sealing surfaces through bending, eliminating the need for multiple separate vanes and gaskets, thereby reducing part count and manufacturing cost
Solution Approach 2:
The invention merges the vane function with the exhaust port structure using a single plate, reducing the number of components that need to be manufactured, assembled, and sealed, thereby lowering overall manufacturing cost
Data Source
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AI summary
The present invention relates to a damper-integrated blower 100 having improved airtightness that is characterized in that a blower casing a 105 on which a suction port 103 is formed and a blower casing b 106 located at the opposite side to the blower casing b 105, the outer periphery of the blower casing a 105 and the outer periphery of the blower casing b 106 being fastened to each other by means of a plurality of casing assembling protruding pieces; a vane stopper protrusion 104b is formed at the center of the bottom surface of the exhaust port 104 of the assembled blower 100, and a vane contact housing part 107 is formed above the exhaust port 104; damper motor screw fixing parts 105a are formed integrally with the outer upper surface of the vane contact housing part 107 adjacent to the exhaust port 104 of the blower casing a 105 on which the suction port 103 is formed and on the surface adjacent to the rear side of the upper side of the fixing frame 104a of the exhaust port 104; a damper motor shaft hole 105b is bored in the outer peripheral surface of the casing of the suction port 103 of a damper motor shaft hole protrusion part 105b' which is integrally formed on the outer upper side of the vane contact housing part 107 adjacent to the damper motor screw fixing parts 105a of the blower casing a 105; a vane rotation shaft 106a protrudes from the inner surface of a damper motor shaft hole protrusion part 105b" of the blower casing b 106 facing the damper motor shaft hole protrusion part 105b' of the blower casing a 105; an eccentric damper motor shaft 201a of a damper motor 201 is introduced into the damper motor shaft hole 105b of the blower casing a 105 so as to connect damper motor fixing brackets 210b facing the damper motor shaft hole 105b with the blower casing a 105; a vane 202B as a single member is connected to the damper motor shaft 201a and the vane rotation shaft 106a located on the inner surface of the damper motor shaft hole protrusion part 105b" so as to open and close the exhaust port 104; and a gasket 202A is coupled to the four edges of the vane 202B, thus providing a vane module 202 having the vane 202B and the gasket 202A assembled integrally with each other.