Damping device and refrigeration equipment

Abstract

The invention relates to the technical field of home appliances, in particular to damping device and refrigeration equipment. The damping device comprises a shell, a coil assembly, a core body and aninstallation assembly, the shell is made of piezoelectric composite materials, the coil assembly is arranged in the shell and is electrically connected with the shell, the core body is made of giant magnetostrictive materials and arranged in the coil assembly, the installation assembly is arranged at the upper end of the shell and used for installing a compressor, and the bottom end of the shell is installed on a base plate. The damping device is not restrained by the vibration isolation rate, a good effect on the vibration within 1HZ-100HZ range can be achieved, and the damping device can achieve a good damping effect on the vibration of the vibration frequency with a wider range. The refrigeration equipment can have a good damping effect under the working condition of high-frequency vibration, and further has a good damping effect under the working condition of low-frequency vibration.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a vibration damping device and refrigeration equipment. Background technique [0002] Compressor is the core and heart of refrigeration equipment such as air conditioners, refrigerators, and dehumidifiers. Its capacity and quality directly determine the capacity and quality of refrigeration equipment. During the working process of the compressor, the eccentric compression device continuously sucks the low-temperature and low-pressure refrigerant gas from the suction pipe, and the compressed refrigerant gas discharges the high-temperature and high-pressure refrigerant gas through the exhaust pipe, and the compressor provides power for the refrigeration cycle. , but the compressor will generate useless and harmful vibrations during its operation. The source of the vibrations is not only the vibration generated by its own work, but also the vibration from the working en...

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Problems solved by technology

[0003] The vibration of the compressor is harmful to the refrigeration equipment, because the compressor is connected with other devices through pipelines, the vibration generated by the compressor forces the pipeline to vibrate, and the vibration of the pipeline will cause the pipeline to deform and break, resulting in refrigerant leakage , the refrigeration equipment cannot be refrigerated, which affects the quality and reliability of the refrigeration equipment

The vibration of the compressor is also transmitted to the entire refrigeration equipment, driving the entire refrigeration equipment to vibrate, causing the refrigeration equipment to vibrate, generating noise and abnormal noise, affecting the comfort of the refrigeration equipment, and easily causing user after-sales complaints and returns

[0004] An existing refrigeration equipment includes a compressor, a chassis and a rubber foot pad. The compressor includes a cylinder body and a footing arranged on the cylinder body. The footing is connected to the chassis through the rubber foot pad. Through the deformation of the rubber foot pad, Reduce the vibration of the compressor, but the rubber foot pad can only play a good damping effect on the vibration within a certain vibration frequency range

Specifically, the vibration reduction effect of the rubber foot pad mainly depends on the vibration isolation rate, which is equal to the natural frequency of the rubber foot pad divided by the vibration frequency. When the vibration isolation rate is between 3.5 and 5, the vibration reduction rate of the rubber foot pad is The vibration effect is better. When the vibration isolation rate exceeds the range of 3.5 to 5, the vibration damping effect of the rubber foot pad is not good, so the rubber foot pad can only play a good damping effect on the vibration of the vibration frequency within a certain range.

The rubber feet are limited by the material, and the natural frequency of the rubber feet cannot be too low. Therefore, for low-frequency vibrations below 20HZ, the vibration isolation rate of the rubber feet will exceed 5, so the rubber feet cannot play a good role in low-frequency vibrations. The damping effect of

[0005] Based on this, it is urgent to invent a vibration damping device and refrigeration equipment to solve the problem of not being able to achieve a better vibration damping effect on low-frequency vibrations

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