Desk type high speed centrifugal machine

Abstract

The invention discloses a table-type high-speed centrifugal machine, which comprises a motor, a rotor, a centrifugal cavity and a door cover, wherein the inner side face of the door cover is provided with at least one air ducting device, the door cover is provided with an air outlet and an interembeded air duct. One end of the interbedded air duct is connected with the air ducting device and the other end of the interbedded air duct is connected with the air outlet. The centrifugal machine has the advantages of ventilation and cooling by using the operational characteristics of the centrifugal rotor, simple structure, great reduction of manufacturing and operational cost and lower noise level. The centrifugal machine can achieve better cooling and radiation effect as well as low-noise effect with a self air duct structure instead of a complex and expensive compressor or semi-conductor cooling system and a cooling fan.

Description

technical field [0001] The invention relates to a desktop high-speed centrifuge, in particular to a desktop high-speed centrifuge with a low-noise cooling structure. Background technique [0002] Generally speaking, the basic structure of a desktop high-speed centrifuge is composed of a high-speed motor that drives a rotor carrying a sample test tube to be centrifuged to rotate at a high speed in a relatively closed centrifuge cavity. In this process, the drive motor will generate a lot of heat when it runs at high speed, and the rotor will also generate heat due to friction with the air in the centrifugal cavity during operation. These heat will make the air in the centrifugal cavity and the temperature of the rotor As a result, the temperature of the sample in the centrifuged test tube rises, and the continuous rise of the temperature is not only harmful to the centrifuge itself, but also affects the temperature-sensitive test samples. [0003] The existing solution is to...

AI Technical Summary

Problems solved by technology

In this process, the drive motor will generate a lot of heat when it runs at high speed, and the rotor will also generate heat due to friction with the air in the centrifugal cavity during operation. These heat will make the air in the centrifugal cavity and the temperature of the rotor As a result, the temperature of the sample in the centrifuged test tube rises. The continuous rise of the temperature is not only detrimental to the centrifuge itself, but also affects the temperature-sensitive test samples.

[0003] The existing solution is to freeze and cool the centrifuge cavity by a compressor refrigeration system or a semiconductor refrigeration block, and an active cooling fan cools the motor. Although the cooling effect is good, the manufacturing cost and operating cost are very high. Samples at constant temperature are somewhat wasteful

[0004] However, ordinary non-refrigerated models rely on methods such as opening holes in the centrifugal chamber to exhaust air and cool down. Not only the cooling effect is not ideal, but also the wind noise is huge.

Images