CN100490982C

CN100490982C - Desk type high speed centrifugal machine for minim

Info

Publication number: CN100490982C
Application number: CNB2005101017091A
Authority: CN
Inventors: 张定一; 张辉
Original assignee: ZHUHAI HEMA MEDICAL INSTRUMENT CO Ltd
Current assignee: ZHUHAI HEMA MEDICAL INSTRUMENT CO Ltd
Priority date: 2005-11-25
Filing date: 2005-11-25
Publication date: 2009-05-27
Anticipated expiration: 2025-11-25
Also published as: CN1970163A

Abstract

It relates to a centrifugal medical machine. This desk top machine comprises a case, case cover, rotary head, motor, and centrifugal cavity, with special lower air intake and unique air outlet apart from the usual up air intake. It adds lower air intake, up and down separate air intake and outlet with optimized air intake structure parameter. Rotary head of the lower air intake can provide overall heat exchange and cooling, getting rid of insufficient cools to the lower surface, lowering sample temperature rising index.

Description

Desk type high speed centrifugal machine for minim

Technical field

The present invention relates to a kind of medical instrument, particularly a kind of centrifuge.

Background technology

For nonrefrigerated centrifuge, for keeping the activity of biological sample, it is air-cooled to possess circulation, rotates the sample intensification that acutely rubs and generate high heat and cause with air at a high speed with effective reduction rotary head; On the other hand, circulating air-cooledly can cause bigger wind noise again, air-cooledly must correctly handle the contradiction that reduces temperature rise and noise abatement so circulate, and satisfies the requirement of this two aspect simultaneously.Domestic existing like product all exists noise bigger than normal, the defective that temperature rise is higher.

Summary of the invention

Technical problem to be solved by this invention is, the desk type high speed that a kind of temperature rise is low, noise is little centrifugal blower is provided.

Technical problem to be solved by this invention is achieved by the following technical solution:

A kind of desk type high speed centrifugal machine for minim, this supercentrifuge comprises cabinet, case lid, rotary head, motor, centrifugal chamber by air-cooled refrigeration of circulation, it is characterized in that, go up the air inlet except that normal, also comprise the following air inlet and the unique exhaust outlet that are positioned at the rotary head below.

Desk type high speed centrifugal machine for minim of the present invention is compared than prior art has increased time air inlet, has promptly designed upper and lower two independently air inlet and exhaust outlets, and the preferred structural parameters that advance exhaust outlet.The employing of following air inlet makes rotary head carry out heat exchange and cooling in the surface entirely, has overcome to have only the last air inlet can't be to the effective disadvantage of cooling of rotary head lower surface before this, thereby has reached the purpose that sample temperature rise index reduces.

Description of drawings

Fig. 1 is the cutaway view of desk type high speed centrifugal machine for minim of the present invention;

Fig. 2 is the rearview of desk type high speed centrifugal machine for minim of the present invention;

The specific embodiment

Referring to Fig. 1 and Fig. 2, a kind of desk type high speed centrifugal machine for minim comprises cabinet 1, case lid 2, rotary head 4, motor 5, goes up air inlet 6, exhaust outlet 8, centrifugal chamber 3 and is positioned at the sealing plate 9 of case lid 2 belows, and is positioned at the following air inlet 7 of rotary head 4 belows.The physical dimension in described upper and

lower air inlet

6,7 exhaust outlets 8 and air channel is designed to optimum structure and size according to this desk type high speed centrifugal machine for minim pattern, to reach best air-cooled and noise reduction.

The air-cooled principle that circulates is the automatic circulation that the stream pressure difference of utilizing rotary head to rotate generation is at a high speed set up atmosphere and centrifugal intracavity gas.When rotary head was rotated at a high speed, the gas in the outside was subjected to centrifugal action pressure bigger, and the central area forms negative pressure, after setting up the gas flow air channel, can discharge hot-air in the heated chamber from the higher-pressure region constantly from the lower extraneous air of negative pressuren zone inlet temperature, realize automatic air-cooled circulation.The design decision in air channel advance, exhaust air rate and the efficient of carrying out heat exchange with rotary head, thereby most important.

Air inlet 6 is arranged on the center of case lid 2 below sealing plates 9 on the desk type high speed centrifugal machine for minim of the present invention, and corresponding with the negative pressuren zone that rotary head 4 forms, intake is big.This sealing plate is separated into two zones with the air channel, and its top is the air intake district, and cold air sucks from the place ahead and the both sides pore of sealing plate 9, can directly enter the upper surface of centrifugal chamber 3 cooling rotary heads 4 down.Following air inlet is arranged on rotary head 4 belows and the centrifuge rear wall, and the cold air that is inhaled into can directly enter rotary head 4 bottoms, is discharged from after rotary head 4 lower surfaces flow, and takes away the heat of rotary head 4 bottoms effectively.Exhaust outlet 8 is arranged on the rear portion of case lid 2, suck cold airs in the centrifugal chamber 3 by

air inlet

6,7 up and down and rotate about 3/4 week can all discharge rapidly in the chamber, thereby air circulation is big, and the temperature of discharge gas is lower.Desk type high speed centrifugal machine for minim of the present invention is preferred by experiment to the structure and the size in air channel, pays special attention to make the wind noise can more anti-tin, and takes into account and measure noise and temperature rise value reaches better level.

Desk type high speed centrifugal machine for minim of the present invention is compared than prior art has increased time air inlet, has promptly designed upper and lower two independently air inlet and exhaust outlets, and preferred each structural parameters.The employing of following air inlet makes rotary head carry out heat exchange and cooling in the surface entirely, has overcome to have only the last air inlet can't be to the effective disadvantage of cooling of rotary head lower surface before this, thereby has reached the purpose that reduces the sample temperature rise.

The present invention also has some other distortion or improvement.If those skilled in the art are subjected to the change or the improvement of the conspicuous unsubstantiality that inspiration of the present invention makes, all belong to the protection domain of claims of the present invention.

Claims

1, a kind of desk type high speed centrifugal machine for minim, this supercentrifuge is by air-cooled refrigeration of circulation, comprise cabinet, case lid, rotary head, motor, go up air inlet, exhaust outlet, centrifugal chamber and be positioned at the sealing plate of case lid below, it is characterized in that, also comprise the following air inlet that is positioned at the rotary head below.

2, desk type high speed centrifugal machine for minim according to claim 1 is characterized in that, the structure and the size in the corresponding air channel of described upper and lower air inlet can be designed to optimum structure and size according to the centrifuge pattern, reach best air-cooled and noise reduction.

3, desk type high speed centrifugal machine for minim according to claim 1 is characterized in that, can discharge from exhaust outlet the air that described upper and lower air inlet sucks centrifugal chamber rotated for 3/4 week in centrifugal chamber after.