Fluid dampers, hinges and freezers

Abstract

A fluid damper, a hinge with a fluid damper, and a freezer with a fluid damper, the fluid damper includes: a housing; The rotor in the casing, wherein the inner peripheral surface of the casing includes a large-diameter inner peripheral surface, a small-diameter inner peripheral surface, and an open-side end surface connecting the large-diameter inner peripheral surface and the small-diameter inner peripheral surface and the closed-side end surface, a fluid chamber is formed between the large-diameter inner peripheral surface and the outer peripheral surface of the rotor, and a working fluid is filled in the fluid chamber, and the small-diameter inner peripheral surface and the closed-side end surface A first gap between the connected closed-side end surface side portion and the outer peripheral surface of the rotor is larger at the fully open position than at the intermediate position and / or the fully closed position. The fluid damper of the present invention can improve the overall efficiency of the closing action while ensuring a sufficient damping effect.

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

Images