Fluid damper, hinge and freezer

Abstract

The invention discloses a fluid damper, a hinge with the fluid damper and a freezer with the fluid damper. The fluid damper comprises a shell and a rotor arranged in the shell in the mode of being capable of rotating among the fully-closed position, the middle position and the fully-opened position; an inner circumference surface of the shell comprises a large-diameter inner circumference surface,a small-diameter inner circumference surface and an open-side end face and a closed-side end face which are used for connecting the large-diameter inner circumference surface and the small-diameter inner circumference surface, a fluid chamber is formed between the large-diameter inner circumference surface and the outer circumference surface of the rotor, and the fluid chamber is filled with working fluid; and a first clearance between the closed-side end face side portion, connected with the closed-side end face, of the small-diameter inner circumference surface and the outer circumference surface of the rotor at the fully-opened position is larger than that at the middle position and / or the fully-closed position. According to the fluid damper, the overall efficiency of the closing action can be improved while the full damping effect is guaranteed.

Description

technical field [0001] The present invention relates to a fluid damper, a hinge with a fluid damper and a freezer with a fluid damper. Background technique [0002] In the past, fluid dampers were often used in order to avoid the noise caused by the sudden collision with the main body of the freezer when the lid of the freezer was closed. [0003] A fluid damper generally includes a housing and a rotor, wherein the housing has a bottomed cylinder with one end open and a cover that closes the open end of the bottomed cylinder. The rotor is rotatably disposed in the housing and has a rotating shaft and a The valve core is movable, and a fluid chamber is formed between the bottomed cylinder, the cover and the rotor, and the fluid chamber is filled with working fluid. [0004] In the fluid damper, when the rotating shaft rotates in the first direction and the spool is in the closed state, the working fluid tends to be compressed and a load is applied to the rotating shaft. On t...

AI Technical Summary

Problems solved by technology

[0006] In the prior art, for example, when the cover of the refrigerator is fully opened, since the moment between the center of gravity of the cover and the rotating shaft of the rotor of the fluid damper is relatively small, at the initial stage of reclosing the cover from the fully opened state stage, the spool of the fluid damper may not be able to close quickly due to the small force acting on it

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