Ventilation air duct of high-speed centrifugal machine

Abstract

The utility model provides a high-speed centrifuge ventilation air duct, which comprises a centrifuge base and a flip cover, the center of the base is provided with an inner cavity for installing a centrifugal mechanism, one end face of the flip cover is provided with an air inlet, and the middle part of the inner side of the flip cover and the end face corresponding to the inner cavity is also provided with at least one air outlet. An arc-shaped air channel is arranged between the air inlet and the air outlet, and a sound absorption structure is arranged on the inner wall of the inner cavity. Heat inside the cavity is taken away through air exchange inside and outside the cavity of the centrifugal machine, and meanwhile the noise reduction effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifuges, in particular to a ventilation duct of a high-speed centrifuge. Background Art

[0002] A centrifuge is an instrument that helps separate samples by rotating the motor at high speed. The centrifugal force of the centrifuge is generated by the high-speed rotation of the motor. The centrifuge is usually equipped with a rotor and a basket for the samples to be separated. When the rotor and the basket rotate, the friction with the air inside the centrifuge will generate a lot of heat, causing the sample temperature to rise. At the same time, when there is a slight imbalance between the rotor and the basket sample, the high speed will amplify the imbalance and generate vibration and loud noise. Summary of the invention

[0003] In order to solve the above problems of the prior art, the utility model provides a ventilation duct for a high-speed centrifuge. The duct is arranged to allow wind to enter the interior of the centrifuge to cool the interior of the centrifuge, and a silencer structure is arranged to reduce noise.

[0004] The technical solutions adopted are as follows:

[0005] A ventilation duct of a high-speed centrifuge comprises a base and a flap of the centrifuge, wherein an inner cavity for mounting a centrifugal mechanism is arranged at the center of the base, an air inlet is arranged at one end surface of the flap, at least one air outlet is arranged at the middle of the inner side of the flap corresponding to the end surface of the inner cavity, an arc-shaped duct is arranged between the air inlet and the air outlet, and a sound absorbing structure is arranged on the inner wall of the inner cavity.

[0006] Furthermore, there are two corresponding air outlets and arc-shaped air ducts.

[0007] Furthermore, the centrifugal mechanism includes a motor, a rotor arranged at the upper end of the motor, a hanging basket arranged on the rotor, and an adapter for mounting a centrifuge tube.

[0008] Furthermore, a motor mounting plate is provided at the bottom of the motor, an exhaust hole is provided on the motor mounting plate, and an exhaust groove is provided on the side of the base.

[0009] Furthermore, the sound absorbing structure may be sound-absorbing cotton or a sound-absorbing board.

[0010] Furthermore, the sound-absorbing cotton is toothed sound-absorbing cotton.

[0011] Compared with the prior art, the beneficial effects produced by the utility model are:

[0012] The utility model provides a ventilation duct for a high-speed centrifuge, wherein an air inlet is arranged on one end face of a flip cover of the centrifuge, an air outlet is arranged on the inner side of the flip cover, and the air inlet and the air outlet are connected by an arc-shaped air duct, and wind enters from the air inlet through the arc-shaped air duct to the air outlet, and enters the inner cavity of the centrifuge. The arc-shaped air duct has small resistance and small noise, and the gas enters the center of the centrifuge, passes through the outer side of the centrifuge, passes through the inner cavity and is discharged from the exhaust groove or exhaust hole on the side of the base, taking away the heat generated by the high-speed rotation of the rotor and the friction between the internal air, and cooling the centrifuge as a whole. At the same time, a sound-absorbing structure is arranged on the inner wall of the inner cavity to reduce the noise inside the centrifuge. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a cross-sectional view of the utility model;

[0015] Figure 3 It is a top view of the utility model;

[0016] Figure 4 It is a bottom view of the utility model;

[0017] Figure 5 It is a rear view of the utility model;

[0018] Among them, the base 1, the flip cover 2, the centrifugal mechanism 3, the motor 301, the rotor 302, the hanging basket 303, the adapter 304, the inner cavity 4, the air inlet 5, the air outlet 6, the arc-shaped air duct 7, the sound absorbing structure 8, the exhaust groove 9, the mounting plate 10, and the exhaust hole 11. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with specific embodiments.

[0020] refer to Figure 1-5 A ventilation duct of a high-speed centrifuge comprises a base 1 and a flap 2 of the centrifuge, wherein an inner cavity 4 for mounting a centrifugal mechanism 3 is arranged at the center of the base 1, an air inlet 5 is arranged at one end surface of the flap 2, and at least one air outlet 6 is arranged at the middle of the inner side of the flap corresponding to the end surface of the inner cavity 4, an arc-shaped air duct 7 is arranged between the air inlet and the air outlet, and a sound absorbing structure 8 is arranged on the inner wall of the inner cavity 4.

[0021] The arc-shaped air duct 7 is in an arc shape with small resistance. The sharp angles on the air duct are removed to make the air duct as a whole rounded, reduce the whistling of the air outlet, and achieve the purpose of cooling and noise reduction.

[0022] There are two corresponding air outlets 6 and arc-shaped air ducts 7. Providing two air outlets 6 can allow more gas to enter the interior of the centrifuge, making the heat dissipation speed faster and the effect better.

[0023] The base 1 and the flap 2 are hinged, and the flap is arranged at the upper end of the base 1. An air inlet is arranged on the end surface of the side of the flap 2, and the wind enters from the air inlet 5, passes through the arc-shaped air duct 7, and is discharged from the air outlet 6. The air outlet 6 is arranged on the inner side, facing the inner cavity 4, and the wind from the outside can be blown into the inner cavity 4 of the centrifuge to dissipate heat inside the centrifuge.

[0024] The centrifugal mechanism 3 includes a motor 301, a rotor 302 disposed at the upper end of the motor, a hanging basket 303 disposed on the rotor 302, and an adapter 304 for installing a centrifuge tube. During the high-speed rotation of the centrifuge rotor 302, the linear velocity of the rotor center is lower than that of the rotor outside, forming a pressure difference in which the pressure in the middle is large and the pressure on the outside is small, and the air outlet 6 is in the middle of the flap. At the same time, the pressure in the middle is lower than the external atmospheric pressure. Under the action of the pressure difference, the external air enters the centrifuge cavity through the air inlet 5 on the flap 2, flows from the inside of the rotor to the outside of the rotor, and then passes through the centrifuge cavity 4 and is discharged from the exhaust slot 9 on the side of the base 1, taking away the heat generated by the friction between the high-speed rotation of the rotor and the internal air.

[0025] The motor 301 is provided with a motor mounting plate 10 at the bottom, and the motor mounting plate is provided with an exhaust hole 11. Gas can also flow out from the exhaust hole 11 at the bottom of the centrifuge, thereby forming a cycle to achieve the purpose of cooling the inside of the centrifuge cavity.

[0026] The sound absorbing structure 8 can be a sound-absorbing cotton or a sound-absorbing board. The sound-absorbing cotton is a toothed sound-absorbing cotton. The sound-absorbing cotton can reduce the noise generated by the high-speed rotation of the machine.

[0027] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A ventilation duct of a high-speed centrifuge, comprising a centrifuge base (1) and a flip cover (2), wherein the center of the base (1) is provided with an inner cavity (4) for mounting a centrifugal mechanism (3), characterized in that: An air inlet (5) is provided on one end face of the flip cover (2), and at least one air outlet (6) is provided in the middle of the end face corresponding to the inner cavity (4) on the inner side of the flip cover, an arc-shaped air duct (7) is provided between the air inlet and the air outlet, and a sound absorbing structure (8) is provided on the inner wall of the inner cavity (4).

2. The ventilation duct of the high-speed centrifuge according to claim 1, characterized in that: Two of the air outlets (6) and two of the arc-shaped air ducts (7) are provided correspondingly.

3. The ventilation duct of the high-speed centrifuge according to claim 1, characterized in that: The centrifugal mechanism (3) comprises a motor (301), a rotor (302) arranged at the upper end of the motor, a hanging basket (303) arranged on the rotor (302), and an adapter (304) for mounting a centrifuge tube.

4. The ventilation duct of the high-speed centrifuge according to claim 3, characterized in that: A motor mounting plate (10) is provided at the bottom of the motor (301), an exhaust hole (11) is provided on the motor mounting plate, and an exhaust groove (9) is provided on the side of the base (1).

5. The ventilation duct of the high-speed centrifuge according to claim 1, characterized in that: The sound absorbing structure (8) may be sound absorbing cotton or a sound absorbing board.

6. The ventilation duct of the high-speed centrifuge according to claim 5, characterized in that: The noise-absorbing cotton is toothed noise-absorbing cotton.

Images