| 摘要 |
A diffuser assembly for controlling air flow in a fresh food compartment of a refrigerator has a housing mounted to the refrigerator liner wall that covers a first air flow opening in the fresh food compartment liner. The housing has side walls and an exterior wall with a second air flow opening spaced from the liner by the side walls. An air flow passage extends between the first air flow opening and a second air flow opening The exterior wall has a first centralized opening passing therethrough and an inner surface with a recessed elongated slot. The assembly has an elongate leaf spring secured in the housing adjacent the inner surface along the recessed slot and biased away from the exterior wall. The spring has a second centralized opening aligned with the first centralized opening. The assembly has a dial diffuser with a shaft that extends through the first and second centralized openings and a shaft controlling portion extending beyond the exterior wall of the housing. The dial diffuser has a substantially circular disk shaped damper drawn against the leaf spring. The damper has a cut out portion and is rotatable to control coverage area of the first air flow opening in the liner and control air flow through the housing. A locking member is secured to the shaft extension adjacent to and in pressing relation with the exterior wall of the housing to hold the shaft under tension with the disc damper pulled against the biased leaf spring.
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