CN212397036U - Air cooling temperature control system and medical centrifuge - Google Patents

Abstract

The utility model discloses an air-cooled temperature control system and a medical centrifuge, wherein the air-cooled temperature control system comprises a centrifuge shell which is provided with an air inlet and an air outlet; the centrifugal machine inner shell is arranged in the centrifugal machine outer shell and is provided with an opening opposite to the air inlet; the centrifugal cavity is enclosed by an inner shell of the centrifugal machine; the centrifugal rotor is umbrella-shaped and is arranged in the centrifugal cavity, and the axis of the centrifugal rotor passes through the center of the air inlet; the output end of the driving mechanism is connected with the centrifugal rotor and can drive the centrifugal rotor to rotate around the centrifugal rotor; an air flow channel is formed between the centrifuge outer shell and the centrifuge inner shell, a first air flow outlet communicated with the air flow channel is arranged at the opening edge of the centrifuge inner shell, and the air flow channel is also communicated with the air outlet. The air-cooled temperature control system is ingenious in design, and can automatically cool the centrifugal cavity and the centrifugal rotor in the operation process of the centrifugal machine without designing an additional cooling system, so that the maintenance cost of the centrifugal machine is reduced, and meanwhile, the temperature of the centrifugal rotor and the temperature in the centrifugal cavity are well controlled.

Description

Air cooling temperature control system and medical centrifuge

Technical Field

The utility model relates to the technical field of medical equipment, in particular to be used for forced air cooling temperature control system and medical centrifuge.

Background

Centrifuges are machines that utilize centrifugal force to separate components of a mixture of liquid and solid particles or liquid and liquid. The centrifuge is mainly used for separating solid particles from liquid in suspension, or separating two liquids which have different densities and are insoluble with each other in emulsion (for example, cream is separated from milk); it can also be used to remove liquids from wet solids, such as by spin drying clothes in a washing machine; the special overspeed tubular separator can also separate gas mixtures with different densities; some settling centrifuges can also grade solid particles according to density or granularity by utilizing the characteristic that solid particles with different densities or granularities have different settling speeds in liquid.

The centrifugal machine is widely applied to the medical fields of biological pharmacy, biochemistry, genetic engineering and the like, and is an indispensable instrument in the production and experiments of medical intermediates. Generally speaking, when the centrifuge works, the centrifugal rotor in the centrifugal cavity rotates at a high speed, the centrifugal rotor continuously rubs with air in the centrifugal cavity and generates heat, so that the temperature in the centrifugal test tube placed on the centrifugal rotor continuously rises, the rise of the temperature of the centrifugal test tube can lead to mutual dissolution of a part of indissolvable substances in the mixture, or the chemical properties of an experimental sample are influenced, and further the centrifugal effect of the centrifuge is influenced. In order to solve the above problems, researchers need to design a corresponding cooling scheme to control the temperature in the centrifugal chamber.

The centrifugal machine in the existing market basically cools a centrifugal cavity by adopting an air cooling mode, cooling air generally flows into the centrifugal cavity from an upper cover of the centrifugal machine and then directly contacts with a centrifugal rotor, after the cooling air exchanges heat with the centrifugal rotor to take away heat of the centrifugal rotor, the cooling air directly flows out from an upper edge of the centrifugal cavity or a side wall opening of the centrifugal cavity, an additional cooling system which can introduce the cooling air into the centrifugal cavity is required to be designed in the cooling mode, the design cost is high, partial cooling of the centrifugal rotor can only be generally achieved, the cooling effect is poor, the problem of overhigh temperature rise of the centrifugal rotor can not be solved, the overhigh temperature rise of the centrifugal rotor can easily cause the failure of an experimental sample in a centrifugal test tube, and the centrifugal quality of the centrifugal machine is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an air-cooled temperature control system and medical centrifuge, its design benefit can effectual control centrifuge rotor and the temperature in the centrifugal cavity, guarantees experimental samples's centrifugal quality.

According to the utility model discloses air-cooled temperature control system of first aspect embodiment includes: a centrifuge housing having an air inlet and an air outlet; the centrifuge inner shell is arranged in the centrifuge outer shell and is provided with an opening opposite to the air inlet; the centrifugal cavity is enclosed by the inner shell of the centrifuge; the centrifugal rotor is umbrella-shaped and is arranged in the centrifugal cavity, and the axis of the centrifugal rotor passes through the center of the air inlet; the output end of the driving mechanism is connected with the centrifugal rotor and can drive the centrifugal rotor to rotate around the centrifugal rotor; an airflow channel is formed between the centrifuge outer shell and the centrifuge inner shell, a first airflow outlet communicated with the airflow channel is arranged at the opening edge of the centrifuge inner shell, and the airflow channel is also communicated with the air outlet.

The method has the following beneficial effects:

this air-cooled temperature control system is through setting up the air intake on centrifugal rotor's axle center, and benefit from centrifugal rotor's umbelliform structure, when centrifugal rotor is high-speed rotatory, its upper portion can form the negative pressure, thereby the air that the external temperature is lower flows into the centrifugal cavity through the air intake because of pressure differential and carries out the heat exchange with the hot-blast of centrifugal cavity and the centrifugal rotor that the temperature is higher in the centrifugal cavity, become the hot-air that the temperature is higher, along with the continuous high-speed rotation of centrifugal rotor, the hot-air of centrifugal cavity forms rotatory air current and enters into the air current passageway from first air current export, rotatory air current finally flows from the air outlet after the circulation flow in the air current passageway, accomplish a heat transfer circulation, through foretell air heat transfer circulation, the last heat transfer that is on centrifugal cavity and the centrifugal rotor is for the external air, realize. This forced air cooling temperature control system design benefit does not need to design extra cooling system just can accomplish and cool off centrifugal cavity and centrifuge rotor at centrifuge operation in-process is automatic, when having reduced centrifuge maintenance cost, still fine control centrifuge rotor and the temperature in the centrifugal cavity, guarantee the centrifugal quality of experimental sample.

According to some embodiments of the invention, the opening edge of the centrifuge inner shell is provided with a flange turned outwards.

According to some embodiments of the utility model, the inner wall of centrifuge shell with press from both sides between the outer wall of centrifuge inner shell and be equipped with first water conservancy diversion strip and the second water conservancy diversion strip that is parallel to each other, first water conservancy diversion strip with the second water conservancy diversion strip will airflow channel divide into first airflow channel, second airflow channel and the third airflow channel of intercommunication each other.

According to some embodiments of the present invention, the first diversion strip is provided with a first notch for allowing the air to flow from the first air flow channel into the second air flow channel, and the second diversion strip is provided with a second notch for allowing the air to flow from the second air flow channel into the third air flow channel.

According to some embodiments of the invention, the two inner side end faces of the second notch are inclined planes.

According to some embodiments of the present invention, the centrifugal machine housing has a first flow dividing hole and a second flow dividing hole on the side wall thereof, which are communicated with the first air flow channel and the second air flow channel.

According to some embodiments of the present invention, the driving mechanism includes a driving motor and a motor mounting bracket, the driving motor is installed through the motor mounting bracket in the bottom of the centrifuge housing, the rotation shaft of the driving motor passes the bottom of the centrifuge inner housing with the centrifugal rotor is connected.

According to some embodiments of the utility model, driving motor's rotation axis is being close to motor mounting bracket's position department has seted up the ring channel.

According to the utility model discloses medical centrifuge of second aspect embodiment, including foretell forced air cooling temperature control system.

The method has the following beneficial effects: the medical centrifuge has the same technical effect as the air cooling temperature control system because of the air cooling temperature control system.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a top view of the structure of the embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along plane A-A of FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 3;

FIG. 5 is an enlarged view at C of FIG. 3;

fig. 6 is an exploded view of an embodiment of the present invention;

FIG. 7 is an enlarged view taken at D in FIG. 6;

FIG. 8 is a schematic view of a partial fitting structure of a centrifugal rotor and a centrifugal housing according to an embodiment of the present invention;

fig. 9 is a partial schematic structural diagram of an embodiment of the present invention;

fig. 10 is a schematic structural view of an embodiment of the present invention after hiding a centrifuge housing;

fig. 11 is a schematic structural diagram of an inner shell of a centrifuge according to an embodiment of the present invention.

Wherein: the centrifugal machine comprises a centrifugal machine outer shell 100, an air inlet 110, an air outlet 120, a first diversion hole 130, a second diversion hole 140, a centrifugal machine inner shell 200, a first air flow outlet 210, a second air flow outlet 220, a gap space 230, a flange 240, an opening 250, a centrifugal cavity 300, a centrifugal rotor 400, a driving mechanism 500, a driving motor 510, a rotating shaft 511, an annular groove 512, a motor mounting rack 520, an air flow channel 600, a first air flow channel 610, a second air flow channel 620, a third air flow channel 630, a third flow guide strip 700, a boss 710, a flow guide inclined plane 711, a first flow guide strip 800, a first notch 810, a second flow guide strip 900 and a second notch 910.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the present number, and the terms greater than, less than, within, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 6, the present invention discloses an air-cooled temperature control system for a medical centrifuge, including a centrifuge outer shell 100, a centrifuge inner shell 200, a centrifugal cavity 300, a centrifugal rotor 400 and a driving mechanism 500, wherein the centrifuge outer shell 100 has an air inlet 110 and an air outlet 120, the centrifuge inner shell 200 is disposed in the centrifuge outer shell 100, the centrifuge inner shell 200 has an opening 250 opposite to the air inlet 110, the centrifugal cavity 300 is enclosed by the centrifuge inner shell 200, obviously, the centrifugal cavity 300 is communicated with the air inlet 110 through the opening 250 on the centrifuge inner shell 200, the centrifugal rotor 400 is umbrella-shaped, the axis of the centrifugal rotor 400 passes through the center of the air inlet 110, obviously, because of the umbrella-shaped structure of the centrifugal rotor 400, when the centrifugal rotor 400 rotates at a high speed, a negative pressure is formed above the centrifugal rotor 400, i.e. the external pressure of the centrifuge outer shell 100 is greater than the pressure, the external air can flow into the centrifugal cavity 300 through the air inlet 110 due to a pressure difference, in addition, the output end of the driving mechanism 500 is connected with the centrifugal rotor 400, the driving mechanism 500 can drive the centrifugal rotor 400 to rotate around itself, in addition, an air flow channel 600 is formed between the centrifuge outer shell 100 and the centrifuge inner shell 200, the edge of the opening 250 of the centrifuge inner shell 200 is provided with a first air outlet 210 communicated with the air flow channel 600, and the air flow channel 600 is also communicated with the air outlet 120.

It is easy to understand that, in the air-cooling temperature control system, the air inlet 110 is disposed on the axial center of the centrifugal rotor 400, and due to the umbrella structure of the centrifugal rotor 400, when the centrifugal rotor 400 rotates at a high speed, a negative pressure is formed at the upper portion of the centrifugal rotor 400, air with a lower external temperature flows into the centrifugal cavity 300 through the air inlet 110 due to a pressure difference to exchange heat with hot air in the centrifugal cavity 300 and the centrifugal rotor 400 with a higher temperature, and then the air becomes hot air with a higher temperature, and with the continuous high-speed rotation of the centrifugal rotor 400, the hot air in the centrifugal cavity 300 forms a rotating air flow and enters the air flow channel 600 from the first air outlet 210, and the rotating air flow finally flows out from the air outlet 120 after circulating in the air flow channel 600, completing a heat exchange cycle, and continuously transferring heat on the centrifugal cavity 300 and the centrifugal rotor 400 to the external air through the, in this way an efficient cooling of the centrifugal chamber 300 and the centrifugal rotor 400 is achieved. This forced air cooling temperature control system design benefit does not need to design extra cooling system just can accomplish and cool off centrifugal cavity 300 and centrifuge rotor 400 automatically at centrifuge operation in-process, when having reduced centrifuge maintenance cost, still fine control centrifuge rotor and the interior temperature of centrifugal cavity, guarantee the centrifugal quality of experimental sample.

Referring to fig. 1, fig. 3, fig. 6 and fig. 9 again, in some embodiments of the present invention, the centrifuge outer shell 100 and the centrifuge inner shell 200 are both in a cylindrical shape, the centrifugal rotor 400 is in an umbrella shape, the radius of the cross section of the centrifugal rotor 400 decreases progressively from bottom to top, i.e., the upper end of the centrifugal rotor 400 faces the air inlet 110 of the centrifuge outer shell 100, in this embodiment, see fig. 8, the air inlet 110 is a circular hole, the air inlet 110 is opened at the upper end of the centrifuge outer shell 100, the radius of the air inlet 110 is smaller than the opening radius of the centrifuge inner shell 200, the air outlet 120 is opened at the lower portion of the centrifuge outer shell 100, and the first air outlet 210.

It should be understood that, in the present embodiment, the air flow channel 600 is formed by an annular gap between the inner wall of the centrifuge outer casing 100 and the outer wall of the centrifuge inner casing 200, when the air with lower external temperature is sucked into the centrifugal cavity 300 and exchanges heat with the hot air in the centrifugal cavity 300 and the centrifugal rotor 400, and simultaneously, as the centrifugal rotor 400 rotates at high speed under the driving of the driving mechanism 500, the air with lower temperature is exchanged heat to form a rotational air flow with higher temperature, because the centrifugal rotor 400 rotates at high speed continuously, the rotational air flow in the centrifugal cavity 300 will be squeezed to form a rotational air flow with higher pressure than atmospheric pressure, and the rotational air flow with higher temperature and pressure will be screwed upwards to the upper edge position of the centrifuge inner casing 200, so as to flow out of the first air flow outlet 210 and further into the air flow channel 600, it should be understood that during the rotational air flow circulates in the air flow channel 600, the rotating airflow can also transmit part of the heat to the wall of the centrifuge housing 100 in a heat conduction manner, so that the heat is dissipated quickly, and in the embodiment, the rotating airflow can circularly flow along the airflow channel 600 and finally flows out through the air outlet 120 at the bottom of the centrifuge housing 100 due to the design of the annular airflow channel 600, so that the flowing speed of the rotating airflow is increased, and a heat exchange cycle is quickly completed. It can be understood that, after the centrifuge is turned on, the heat exchange cycle described above is continuously performed during the normal high-speed operation of the centrifuge rotor 400, that is, the heat generated by the high-speed rotation of the centrifuge rotor 400 can be continuously dissipated, the temperatures of the centrifuge chamber 300 and the centrifuge rotor 400 are reduced by performing heat exchange between the external air and the centrifuge chamber 300, thereby avoiding the adverse condition that the temperature of the centrifuge tube on the centrifuge rotor 400 is too high, ensuring that the temperature in the centrifuge chamber 300 and the temperature of the centrifuge rotor 400 are within a relatively constant range, and ensuring that the chemical properties of the test sample in the centrifuge tube are not damaged.

In some embodiments of the utility model, refer to fig. 3, fig. 4 and fig. 11, in order to accelerate the rotatory air current in centrifugal chamber 300 to flow out from first air current export 210, opening 250 edge of centrifuge inner shell 200 is equipped with the turn-ups 240 of turning over the book to the outside, in this embodiment, turn-ups 240 is the arc curved surface, obviously, turn-ups 240 has effectually reduced the resistance that rotatory air current flows out, the effect of drawing rotatory air current has been played, have the drainage effect promptly, the process that rotatory air current flowed into to airflow channel 600 from first air current export 210 has been accelerated, and then whole centrifugal chamber 300 and centrifugal rotor 400's cooling efficiency has been improved.

In some embodiments of the present invention, in order to further increase the cooling speed of the centrifugal chamber 300 and the centrifugal rotor 400 and fully exchange heat of the centrifugal rotor 400, and ensure that the temperatures at various positions on the centrifugal rotor 400 are basically in the same state, referring to fig. 3 and 5, the inner centrifuge shell 200 is provided with a second airflow outlet 220 communicating with the airflow channel 600 below the centrifugal rotor 400, it can be understood that, thanks to the continuous high-speed rotation of the centrifugal rotor 400, the rotating airflow in the centrifugal chamber 300 is extruded to form a rotating airflow with a pressure greater than the atmospheric pressure and is thrown out around the centrifugal chamber 300, so that the rotating airflow can be divided into two paths after exchanging heat with the centrifugal rotor 400, and the two paths of rotating airflow respectively flow out of the first airflow outlet 210 at the upper end of the inner centrifuge shell 200 and the second airflow outlet 220 at the lower end of the inner centrifuge shell 200 and simultaneously enter the airflow channel 600, the two paths of rotating air flows flow into the air outlet 120 along the air flow channel 600 and then are discharged to the outside of the machine, so that the upper part and the lower part of the centrifugal rotor 400 can be cooled, and the temperature uniformity of the centrifugal rotor 400 is ensured.

In addition, in some embodiments of the present invention, referring to fig. 3, 5, 6 and 7, in order to further accelerate the flow of the rotating air at the lower part of the centrifugal rotor 400 to flow out from the second air outlet 220, a third air guide strip 700 is disposed at the outer side of the inner centrifuge shell 200, a boss 710 is disposed at the upper part of the third air guide strip 700, an air guide inclined plane 711 is disposed on the boss 710, the boss 710 passes through the second air outlet 220 and extends into the centrifugal chamber 300, a gap space 230 for the flow of the air to flow out is formed between the third air guide strip 700 and the second air outlet 220, referring to fig. 7, in this embodiment, the third air guide strip 700 is stepped, the boss 710 is truncated cone-shaped, and the air guide inclined plane 711 is a curved surface on the boss 710, obviously, the air guide inclined plane 711 plays a role in rapidly drawing out the rotating air to accelerate the flow out of the rotating air, and it is easily understood that the gap space 230 is, in this embodiment, the gap space 230 is a part of the airflow channel 600.

In some embodiments of the present invention, referring to fig. 3, 5, 6 and 7 again, the driving mechanism 500 includes a driving motor 510 and a motor mounting bracket 520, the driving motor 510 is mounted at the bottom of the centrifuge housing 100 through the motor mounting bracket 520, the rotation shaft 511 of the driving motor 510 passes through the second airflow outlet 220 to be connected with the centrifuge rotor 400, in this embodiment, the bottom of the centrifuge rotor 400 is connected with the rotation shaft 511 of the driving motor 510 in a matching manner, considering that the rotation shaft 511 of the driving motor 510 can also generate a large amount of heat during high-speed rotation, the heat can be conducted to the centrifuge rotor 400 through the rotation shaft 511 to cause the lower temperature of the centrifuge rotor 400 to rise, in the present invention, in order to reduce the heat on the rotation shaft 511 from being transferred to the bottom of the centrifuge rotor 400, the rotation shaft 511 of the driving motor 510 is provided with an annular groove 512 at a position close to the, it will be readily appreciated that the design of the annular groove 512 effectively reduces the heat transfer from the rotating shaft 511 to the direction close to the centrifugal rotor 400 along the rotating shaft 511, and highly controls the temperature rise of the lower portion of the centrifugal rotor 400 caused by the heat transfer from the rotating shaft 511.

In some embodiments of the present invention, referring to fig. 3, 9 and 10 again, in order to ensure that the rotating airflow flows uniformly in the airflow channel 600, the temperature of each position in the centrifugal cavity 300 is balanced, and further each position on the centrifugal rotor 400 is in a constant temperature range, a first flow guide strip 800 and a second flow guide strip 900 which are parallel to each other are clamped between the inner wall of the centrifuge outer shell 100 and the outer wall of the centrifuge inner shell 200, and the first flow guide strip 800 and the second flow guide strip 900 divide the airflow channel 600 into a first airflow channel 610, a second airflow channel 620 and a third airflow channel 630 which are communicated with each other.

Referring to fig. 10 again, in the present embodiment, the first flow guiding strip 800 is provided with a first notch 810 through which the airflow flows from the first airflow channel 610 to the second airflow channel 620, and the second flow guiding strip 900 is provided with a second notch 910 through which the airflow flows from the second airflow channel 620 to the third airflow channel 630.

In the present embodiment, the first flow guiding strip 800 is located above the second flow guiding strip 900, the third airflow channel 630 is communicated with the air outlet 120, and the third airflow channel 630 is further communicated with the second airflow outlet 220, it can be understood that the first flow guiding strip 800 and the second flow guiding strip 900 divide the airflow channel 600 into three airflow spaces which are communicated with each other, that is, the first airflow channel 610, the second airflow channel 620 and the third airflow channel 630, and the first airflow channel 610, the second airflow channel 620 and the third airflow channel 630 are all annular airflow channels, it is easy to understand that the first airflow channel 610 is defined by the inner sidewall of the centrifuge outer shell 100, the outer sidewall of the centrifuge inner shell 200 and the upper surface of the first flow guiding strip 800, the second airflow channel 620 is defined by the inner sidewall of the centrifuge outer shell 100, the outer sidewall of the centrifuge inner shell 200, the lower surface of the first flow guiding strip 800 and the upper surface of the second flow guiding strip 900, the third airflow channel 630 is defined by the inner sidewall of the centrifuge outer shell 100, the outer sidewall of the centrifuge inner shell 200, the lower surface of the second flow guide strip 900 and the inner wall of the bottom end of the centrifuge outer shell 100, the first airflow channel 610 is communicated with the second airflow channel 620 through the first notch 810, the second airflow channel 620 is communicated with the third airflow channel 630 through the second notch 910, and the rotating airflow with higher temperature circulates in the three airflow channels and finally flows out of the centrifuge from the air outlet 120.

It should be understood that the air with lower external temperature exchanges heat with the hot air in the centrifugal cavity 300 and the centrifugal rotor 400 with higher temperature to become a rotating airflow with higher temperature, and the rotating airflow respectively flows out from the upper part and the lower part of the centrifugal cavity 300 by two paths, the first path is: the rotating airflow flows out from the first airflow outlet 210 into the first airflow channel 610, flows along the first airflow channel 610 in a direction consistent with the rotation of the centrifugal rotor 400 and flows into the second airflow channel 620 through the first notch 810, and similarly, the rotating airflow flows along the second airflow channel 620 and flows into the third airflow channel 630 through the second notch 910, thereby completing the first circulation flow of the rotating airflow, achieving uniform flow of the rotating airflow in the airflow channel 600, and equalizing the temperature at various positions in the centrifugal cavity 300. In addition, it is easy to understand that, in the process that the rotating airflow with higher temperature flows in the three airflow channels, the rotating airflow can also exchange heat with the inner sidewall of the centrifuge outer shell 100 and the outer sidewall of the centrifuge inner shell 200 in a heat conduction manner, so that both the inner sidewall of the centrifuge outer shell 100 and the outer sidewall of the centrifuge inner shell 200 are cooled, and the temperature rise of the centrifugal cavity 300 is further controlled. In addition, the second path of the rotating airflow is: the rotating airflow flows out from the second airflow outlet 220 and enters the third airflow channel 630, so that the two rotating airflows are collected in the third airflow channel 630 and flow out to the outside of the machine through the air outlet 120. The external air exchanges heat with the centrifugal cavity 300 and the centrifugal rotor 400 and cools the centrifugal cavity 300 and the centrifugal rotor 400 in a circulating manner of the rotating airflow, thereby effectively controlling the temperature rise of the centrifugal cavity 300 and the centrifugal rotor 400.

In addition, referring to fig. 10 again, in this embodiment, both inner side end surfaces of the second notch 910 are inclined surfaces, and obviously, the inclined surfaces arranged inside the second notch 910 also serve to guide the rotating airflow from the second airflow channel 620 to the third airflow channel 630, thereby accelerating the heat exchange circulation between the outside air and the centrifugal cavity 300.

In some embodiments of the present invention, referring to fig. 3, 6 and 9 again, the sidewall of the centrifuge housing 100 is provided with a first diversion hole 130 and a second diversion hole 140 respectively communicating with the first air flow channel 610 and the second air flow channel 620, in this embodiment, the first diversion hole 130 has one diversion hole and the second diversion hole 140 has two diversion holes, it can be understood that the rotating air flow can also flow out from the first diversion hole 130 and the second diversion hole 140 during the flowing process of the rotating air flow in the air flow channel 600, obviously, the first diversion hole 130 and the second diversion hole 140 both play a role of diverting partial heat in the rotating air flow, the heat flow in the air flow channel 600 is well regulated and smooth, the first diversion hole 130 and the second diversion hole 140 respectively cooperate with the first air flow channel 610 and the second air flow channel 620 to conduct the rotating air flow with higher temperature, and further accelerate the cooling of the rotating air flow to the centrifuge cavity 300 and the centrifuge rotor 400, the temperature rise of the centrifugal cavity 300 and the centrifugal rotor 400 is effectively controlled.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (9)

1. Air-cooled temperature control system, its characterized in that includes:

a centrifuge housing having an air inlet and an air outlet;

the centrifuge inner shell is arranged in the centrifuge outer shell and is provided with an opening opposite to the air inlet;

the centrifugal cavity is enclosed by the inner shell of the centrifuge;

the centrifugal rotor is umbrella-shaped and is arranged in the centrifugal cavity, and the axis of the centrifugal rotor passes through the center of the air inlet;

the output end of the driving mechanism is connected with the centrifugal rotor and can drive the centrifugal rotor to rotate around the centrifugal rotor;

an airflow channel is formed between the centrifuge outer shell and the centrifuge inner shell, a first airflow outlet communicated with the airflow channel is arranged at the opening edge of the centrifuge inner shell, and the airflow channel is also communicated with the air outlet.

2. The air-cooled temperature control system of claim 1, wherein an outwardly turned flange is provided at an opening edge of the centrifuge inner shell.

3. The air-cooled temperature control system according to claim 1 or 2, wherein a first flow guide strip and a second flow guide strip which are parallel to each other are arranged between the inner wall of the centrifuge outer shell and the outer wall of the centrifuge inner shell in a clamping manner, and the first flow guide strip and the second flow guide strip divide the air flow channel into a first air flow channel, a second air flow channel and a third air flow channel which are communicated with each other.

4. The air-cooled temperature control system according to claim 3, wherein the first air guide strip has a first notch for allowing the air flow to flow from the first air flow channel into the second air flow channel, and the second air guide strip has a second notch for allowing the air flow to flow from the second air flow channel into the third air flow channel.

5. The air-cooled temperature control system of claim 4, wherein both inner side end faces of the second notch are inclined planes.

6. The air-cooled temperature control system according to claim 3, wherein the centrifugal machine housing has a first flow dividing hole and a second flow dividing hole formed in a side wall thereof to communicate with the first air flow passage and the second air flow passage, respectively.

7. The air-cooled temperature control system according to claim 1 or 2, wherein the driving mechanism comprises a driving motor and a motor mounting bracket, the driving motor is mounted at the bottom of the centrifuge outer shell through the motor mounting bracket, and a rotating shaft of the driving motor penetrates through the bottom of the centrifuge inner shell to be connected with the centrifugal rotor.

8. The air-cooled temperature control system of claim 7, wherein the rotating shaft of the driving motor is provided with an annular groove at a position close to the motor mounting bracket.

9. Medical centrifuge, comprising an air-cooled temperature control system according to any of claims 1 to 8.

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