Vibration control device
A controller and installation location technology, applied in the field of multi-connected air conditioners, can solve problems such as noise piping stress of outdoor units of air conditioners, and achieve the effects of increasing shear yield stress, reducing the risk of pipe breakage, and avoiding resonance points.
Active Publication Date: 2022-03-11
QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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Problems solved by technology
The vibration state of the piping can be variably adjusted under different excitations such as compressor start and stop, constant speed and frequency conversion operation, and four-way valve reversing, and the natural frequency change can be controlled to avoid the resonance point, thereby effectively solving the noise of the outdoor unit of the air conditioner and the problem of high piping stress
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[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0040] In describing the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than in...
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The present invention discloses a vibration control device, comprising: a flexible controller mounted on the outer side of a pipe; the main control board is connected with the flexible controller and is used for detecting the mounting position of the flexible controller; wherein the flexible controller comprises an electromagnetic coil which is connected to the outer side of the piping in a winding manner; a magnetorheological fluid filled between the electromagnetic coil and the piping; the magnetorheological fluid is sealed in the flexible waterproof cloth; the main control board is further used for adjusting the current in the electromagnetic coil according to the operation state of the outdoor unit and the installation position of the flexible controller. The viscosity and rigidity of the magnetorheological fluid are controlled by adjusting the current of the electromagnetic coil, so that vibration at a welding spot is restrained, energy dissipation is assisted, the shear yield stress is increased, and the pipe breaking risk is reduced; and the piping rigidity can be variably adjusted and the inherent frequency change can be controlled according to the compressor type (fixed frequency and variable frequency), so that resonance points can be avoided.
Description
technical field [0001] The invention relates to the technical field of multi-connected air conditioners, in particular to a device for controlling the vibration of compressor piping through magnetorheological fluid. Background technique [0002] With the development of the economy, multi-connected central air conditioners have expanded from commercial to domestic use, and have increasingly broad market prospects. However, during the use of the air conditioner, due to the continuous vibration of the compressor and the reversing of the four-way valve, the piping is prone to vibration. While generating noise, the stress at some solder joints or bends is too high, and even the bad consequences of broken pipes occur. , so the vibration of the air-conditioning piping needs to be controlled within a small range to ensure the effective operation of the air-conditioning and a better user experience. Magnetorheological fluid, as a new type of fluidity variable material, can make the ...
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IPC IPC(8): F24F11/54F24F11/86F24F11/84F24F11/64F24F140/50
CPCF24F11/54F24F11/86F24F11/84F24F11/64F24F2140/50
Inventor 郭超张建龙梁爱云朱磊
Owner QINGDAO HISENSE HITACHI AIR CONDITIONING SYST