Ventilation structure of centrifugal machine

Abstract

The utility model discloses a ventilation structure of a centrifugal machine, and relates to the technical field of medical equipment. The centrifugal machine ventilation structure comprises a machine box. The machine box comprises a bottom shell with a cavity in the top and a top cover covering the top of the cavity. An air inlet duct is arranged on the top cover in a penetrating manner to communicate the external space of the case with the cavity, the cavity comprises a centrifugal cavity for mounting a rotor and an electric control cavity for mounting an electric control device, a rotor duct for communicating the centrifugal cavity with the electric control cavity is arranged in the centrifugal cavity, and an air outlet for communicating the electric control cavity with the external space of the case is formed in the bottom shell; the air inlet duct, the rotor duct and the air outlet are sequentially communicated to form a heat dissipation duct; and a noise reduction structure is arranged on the case. The air inlet channel, the rotor air channel and the air outlet are communicated to form a heat dissipation air channel penetrating through the centrifugal machine, a specific channel is provided to guide air to sequentially flow through the centrifugal cavity used for installing the rotor and the electric control cavity used for installing the electric control device and take away heat generated when the centrifugal machine works, the heat dissipation effect can be improved, and the noise reduction structure can reduce noise pollution.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a centrifuge ventilation structure. Background Art

[0002] Medical centrifuges are used to separate solid-liquid mixed suspensions such as blood, urine, and cell culture fluid. They use the centrifugal principle to accelerate the precipitation of solid particles. The separated suspensions are sensitive to ambient temperature, and some suspensions need to be centrifuged in a constant temperature environment. The increase in medical testing items requires the use of medical centrifuges with higher single centrifugal flux. The increase in flux will cause the total mass of the rotor to increase, increasing the heat generated by the mechanical friction of the parts. The increased contact surface between the rotor and the air will also generate a large amount of frictional heat. In addition, the heat generated by the high-speed rotation of the motor will affect cell activity if the heat cannot be discharged from the centrifugal chamber in time. Therefore, the centrifuge needs to be equipped with a heat dissipation mechanism to ensure the normal use of the centrifuge.

[0003] In an existing centrifuge, a vent is provided on the side wall of the chassis, and an exhaust fan is installed on the vent to discharge the hot air in the chassis to the outside of the chassis. However, since there is no fixed air duct, the air is discharged through the gaps naturally generated between the vent parts, which cannot ensure that the hot air generated by different parts in the chassis is discharged smoothly. In addition, due to processing errors, assembly errors, etc., the air may whistle when passing through the vent area, increasing noise pollution.

[0004] Therefore, how to improve the heat dissipation effect and reduce noise pollution is a technical problem that technical personnel in this field currently need to solve. Utility Model Content

[0005] In view of this, an object of the present invention is to provide a centrifuge ventilation structure which can improve the heat dissipation effect and reduce noise pollution.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A centrifuge ventilation structure comprises a chassis, wherein the chassis comprises a bottom shell with a chamber on the top and a top cover sealing the top of the chamber; an air inlet duct is arranged through the top cover to connect the external space of the chassis with the chamber, the chamber comprises a centrifugal chamber for installing a rotor and an electric control chamber for installing an electric control device, a rotor duct is arranged in the centrifugal chamber to connect the centrifugal chamber with the electric control chamber, an air outlet is arranged through the bottom shell to connect the electric control chamber with the external space of the chassis; the air inlet duct, the rotor duct and the air outlet are connected in sequence to form a heat dissipation duct, and a noise reduction structure is arranged on the chassis.

[0008] Preferably, a ventilation fan is also provided at one end of the air inlet duct directly connected to the chamber.

[0009] Preferably, the air inlet duct is a spiral duct.

[0010] Preferably, a cooling fin is also provided in the air inlet duct.

[0011] Preferably, the noise reduction structure is noise reduction cotton.

[0012] Preferably, a partition is also provided in the middle of the bottom shell, and the upper and lower sides of the partition are the centrifugal chamber and the electric control chamber respectively. A rotor barrel connected to the partition is also provided in the centrifugal chamber, and the rotor barrel is used to connect the rotor. The rotor barrel penetrates from top to bottom and the bottom opening is connected to the electric control chamber through the partition through hole on the partition. A rotor vent is penetrated through the side wall of the rotor barrel, and the part of the rotor barrel located between the rotor vent and the bottom opening of the rotor barrel forms the rotor air duct.

[0013] Preferably, a rotor is arranged in the centrifugal chamber, a rotor motor is arranged in the electric control chamber to drive the rotor to rotate, and the rotor motor and the rotor are connected to the rotor barrel.

[0014] Preferably, the air outlet is located on a side of the electric control cavity.

[0015] Preferably, a first wind shield is also provided in the electric control chamber, the top end of the first wind shield is fixed to the partition, the partition through hole and the air outlet are respectively located on both sides of the first wind shield; in the heat dissipation duct, after the air enters the electric control chamber, it can bypass the bottom of the first wind shield and enter the air outlet.

[0016] Preferably, a second wind shield is also provided in the electric control chamber, and the second wind shield is fixed to the side wall of the electric control chamber, and the second wind shield is located below the air outlet and higher than the bottom end of the first wind shield; in the heat dissipation duct, after the air bypasses the bottom of the first wind shield, it can enter the gap between the first wind shield and the second wind shield, and then enter the air outlet through the top of the second wind shield.

[0017] The utility model provides a centrifuge ventilation structure, comprising a chassis, the chassis comprising a bottom shell with a chamber on the top and a top cover covering the top of the chamber; an air inlet duct is arranged through the top cover to connect the external space of the chassis with the chamber, the chamber comprises a centrifugal chamber for installing a rotor and an electric control chamber for installing an electric control device, a rotor duct connecting the centrifugal chamber with the electric control chamber is arranged in the centrifugal chamber, an air outlet connecting the electric control chamber with the external space of the chassis is arranged through the bottom shell; the air inlet duct, the rotor duct and the air outlet are connected in sequence to form a heat dissipation duct, and a noise reduction structure is arranged on the chassis.

[0018] The centrifuge ventilation structure provided by the utility model has the following beneficial effects: the air inlet duct, the rotor duct and the air outlet are connected to form a heat dissipation duct that runs through the centrifuge, and a specific channel is provided to guide air to flow through the centrifugal cavity for installing the rotor and the electric control cavity for installing the electric control device in sequence, and take away the heat generated when the centrifuge is working, which is beneficial to improving the heat dissipation effect, and the setting of the noise reduction structure is beneficial to reducing noise pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1 This is a front view of a specific embodiment of the centrifuge ventilation structure provided by the utility model;

[0021] Figure 2 It is a top sectional view of the cooling door cover in a specific embodiment of the centrifuge ventilation structure provided by the utility model.

[0022] Reference numerals:

[0023] Top cover 1, ventilation fan 101, air inlet 102, air inlet duct 103, cooling fin 104;

[0024] Bottom shell 2, rotor 201, centrifugal chamber side wall 202, chamber 203, rotor barrel 204, rotor motor 205, air outlet 206, second wind shield 207, centrifugal chamber 208, electric control chamber 209, rotor vent 210, first wind shield 211, partition 212, partition through hole 213, rotor air duct 214;

[0025] Cooling duct 3;

[0026] Noise reduction cotton4. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The core of the utility model is to provide a centrifuge ventilation structure, which can improve the heat dissipation effect and reduce noise pollution.

[0029] For a specific embodiment of the centrifuge ventilation structure provided by the utility model, please refer to Figure 1 and Figure 2 , including a chassis, the chassis including a bottom shell 2 with a chamber 203 on the top and a top cover 1 covering the top of the chamber 203. Among them, when applied to a centrifuge, the bottom shell 2 and the components installed therein constitute the centrifuge body, mainly realizing the centrifugal function.

[0030] An air inlet duct 103 is provided through the top cover 1 to connect the external space of the chassis with the chamber 203 , wherein the end of the air inlet duct 103 away from the chamber 203 is an air inlet port 102 .

[0031] The chamber 203 includes a centrifugal chamber 208 for installing the rotor 201 and an electric control chamber 209 for installing the electric control device, wherein the rotor 201 is the main working part of the centrifuge, and rotates at high speed in the centrifugal chamber 208, and the electric control device can control the operation of the rotor 201. A rotor air duct 214 is provided in the centrifugal chamber 208 to connect it with the electric control chamber 209, and an air outlet 206 is provided on the bottom shell 2 to connect the electric control chamber 209 with the external space of the chassis. The air inlet duct 103, the rotor duct 214, and the air outlet 206 are connected in sequence to form a heat dissipation duct 3. In addition, a noise reduction structure is provided on the chassis.

[0032] In this embodiment, the air inlet duct 103, the rotor duct 214 and the air outlet 206 are connected to form a heat dissipation duct 3 that runs through the centrifuge, providing a specific channel to guide the air to flow through the centrifugal chamber for installing the rotor and the electric control chamber for installing the electric control device in sequence, and take away the heat generated when the centrifuge is working, which is beneficial to improving the heat dissipation effect, and the setting of the noise reduction structure is beneficial to reducing noise pollution.

[0033] Furthermore, regarding the configuration of the top cover 1, a ventilation fan 101 is further provided at one end of the air inlet duct 103 that is directly connected to the chamber 203 to generate an active ventilation driving force, so that the air flows from the air inlet 102 to the air outlet 206, thereby improving the efficiency of hot air discharge. Preferably, the air inlet duct 103 is a spiral duct, which can effectively prevent the linear propagation of noise generated by the ventilation fan 101 and other structures compared to a linear duct based on the linear propagation characteristics of noise.

[0034] In addition, a cooling fin 104 is also provided in the air inlet duct 103, and the constant temperature of the centrifugal chamber 208 is achieved by controlling the temperature of the cooling fin 104. At this time, the top cover 1 constitutes a cooling door cover with cooling capability.

[0035] Of course, in other embodiments, the refrigeration plate 104 may not be provided, and air-conditioning ducts may be arranged on the outside of the chassis. The air-conditioning ducts may be specifically connected to the air inlet 102 and the air outlet 206 to cool the entire chamber 203. However, the air-conditioning system involves a series of complex structures such as a compressor and air-conditioning pipelines, which are relatively costly and occupy a large space. Therefore, the solution of the above embodiment is more preferred.

[0036] Alternatively, the centrifugal chamber 208 can be provided with a through hole connected to the outside of the chassis, and natural ventilation can be performed by means of the wind force generated by the rotation of the rotor 201. However, according to experimental measurements, it is impossible to effectively cool down and achieve a constant temperature effect. From this perspective, the above embodiment of setting a refrigeration plate 104 and a ventilation fan 101 to cooperate in cooling can provide a better cooling effect.

[0037] Furthermore, regarding the arrangement of the bottom shell 2, specifically, a partition 212 is further arranged in the middle of the bottom shell 2, and the upper and lower sides of the partition 212 are the centrifugal chamber 208 and the electric control chamber 209 respectively.

[0038] Among them, a rotor barrel 204 connected to a partition 212 is provided in the centrifugal chamber 208, and the rotor barrel 204 is used to connect the rotor 201. The rotor barrel 204 is provided through the upper and lower parts, and the bottom opening of the rotor barrel 204 is connected to the electric control chamber 209 through the partition through hole 213 on the partition 212. The side wall of the rotor barrel 204 is provided with a rotor vent 210, and specifically, the rotor vent 210 is located in the middle of the rotor barrel 204. The part of the rotor barrel 204 located between the rotor vent 210 and the bottom opening of the rotor barrel 204 forms a rotor air duct 214. The wind entering the centrifugal chamber 208 from the air inlet duct 103 can enter the inside of the rotor barrel 204 through the rotor vent 210, and then enter the electric control chamber 209 from the bottom opening of the rotor barrel 204 and the partition through hole 213 in sequence. By adding the rotor barrel 204 and the partition plate 212 , the extension direction of the heat dissipation air duct 3 can be further limited, so that the rotor 201 installed in the rotor barrel 204 can be reliably cooled by air.

[0039] Among them, the rotor 201 is arranged in the centrifugal chamber 208, and the rotor motor 205 is arranged in the electric control chamber 209 to drive the rotor 201 to rotate, and the rotor motor 205 and the rotor 201 are connected to the rotor barrel 204. Specifically, the rotor 201 can be partially located inside the rotor barrel 204 and connected to the rotor motor 205, and the remaining part extends out of the rotor barrel 204 through the top opening of the rotor barrel 204. The air passing through the rotor air duct 214 and the air passing thereafter can effectively take away the heat generated by the rotation of the rotor motor 205 and the rotor 201. In other embodiments, the rotor barrel 204 can also be rotatably connected to the partition 212, and the rotor motor 205 is connected to the rotor 201 through the rotor barrel 204.

[0040] The air outlet 206 is located on the side of the electric control chamber 209, without occupying the bottom space of the chassis, which is convenient for placing the chassis. The electric control chamber 209 is also provided with a first wind shield 211 and a second wind shield 207 to further limit the flow direction of air in the electric control chamber 209, block the linear propagation path of noise, and prevent the noise from propagating in a linear manner.

[0041] Specifically, the top of the first wind shield 211 is fixed to the partition 212, and the partition through hole 213 and the air outlet 206 are respectively located on both sides of the first wind shield 211. In the heat dissipation duct 3, after the air enters the electric control cavity 209, it can bypass the bottom of the first wind shield 211 and enter the air outlet 206. The second wind shield 207 is fixed to the side wall of the electric control cavity 209. The second wind shield 207 is located below the air outlet 206 and is higher than the bottom of the first wind shield 211. In the heat dissipation duct 3, after the air bypasses the bottom of the first wind shield 211, it can enter the gap between the first wind shield 211 and the second wind shield 207, and then enter the air outlet 206 through the top of the second wind shield 207.

[0042] Furthermore, the noise reduction structure can be specifically noise reduction cotton 4 or silencer cotton, which is easy to assemble and helps to reduce costs. Specifically, a centrifugal chamber side wall 202 is provided in the centrifugal chamber 208 in the chassis, the bottom end of the centrifugal chamber side wall 202 is fixed to the partition 212, the rotor 201 and the rotor barrel 204 are located inside the centrifugal chamber side wall 202, and the outer surface of the centrifugal chamber side wall 202, the cavity wall of the electric control cavity 209, and the air duct surface of the air inlet duct 103 are all pasted with sound insulation cotton 4. In other embodiments, the noise reduction structure can also be a sound insulation board or other structures.

[0043] The centrifuge provided by the utility model has the following ventilation and heat dissipation principles:

[0044] The ventilation fan 101 is installed on the upper side of the centrifugal chamber 208. Driven by the ventilation fan 101, the room temperature air outside the chassis can be introduced into the centrifugal chamber 208 from the air inlet 102 through the air inlet duct 103, wherein a number of refrigeration plates 104 are installed on the side wall of the air inlet duct 103 to cool the air in the air inlet duct 103; after the outside air enters the centrifugal chamber 208, it can be discharged from the chassis through the rotor ventilation holes 210 on the rotor barrel 204 and the air outlet 206 on the electric control chamber 209 in turn, wherein the wind shield in the electric control chamber 209 can change the ventilation direction.

[0045] The air flows in the following direction: the air outside the chassis passes through the air inlet 102, the air inlet duct 103, the cooling fin 104, the ventilation fan 101, the centrifugal chamber 208, the rotor 201, the rotor barrel 204, the rotor 201 vent, the rotor motor 205, the electric control chamber 209, the wind shield, and the air outlet 206 in sequence to form an air duct, completing the circulation of air in the entire chamber. During the air flow, the air is sound-absorbing through the sound insulation cotton to achieve noise reduction control.

[0046] The centrifuge ventilation structure in this embodiment has the following beneficial effects: it has ventilation and heat dissipation function, the heat dissipation duct 3 limits the air flow area, which can effectively avoid the generation of howling, and has noise reduction cotton 4 to achieve noise reduction function, and the setting of the refrigeration plate 104 can achieve constant temperature in the centrifugal chamber 208.

[0047] It should be noted that when an element is referred to as "fixed" to another element, it may be directly on the other element or there may be an element in the middle. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an element in the middle at the same time. In addition, in the description of the present utility model, unless otherwise specified, "multiple", "multiple roots", and "multiple groups" mean two or more.

[0048] The terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0050] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0051] The centrifuge ventilation structure provided by the utility model is introduced in detail above. The principle and implementation method of the utility model are explained in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A centrifuge ventilation structure, It is characterized in that The invention comprises a chassis, wherein the chassis comprises a bottom shell (2) having a chamber (203) at the top and a top cover (1) covering the top of the chamber (203); an air inlet duct (103) is provided through the top cover (1) to connect the external space of the chassis with the chamber (203); the chamber (203) comprises a centrifugal chamber (208) for installing a rotor (201) and an electric control chamber (209) for installing an electric control device; a rotor duct (214) is provided in the centrifugal chamber (208) to connect the centrifugal chamber (208) with the electric control chamber (209); an air outlet (206) is provided through the bottom shell (2) to connect the electric control chamber (209) with the external space of the chassis; the air inlet duct (103), the rotor duct (214) and the air outlet (206) are connected in sequence to form a heat dissipation duct (3); and a noise reduction structure is provided on the chassis.

2. The centrifuge ventilation structure according to claim 1, It is characterized in that A ventilation fan (101) is also provided at one end of the air inlet duct (103) that is directly connected to the chamber (203).

3. The centrifuge ventilation structure according to claim 2, It is characterized in that The air inlet duct (103) is a spiral duct.

4. The centrifuge ventilation structure according to claim 1, It is characterized in that A cooling fin (104) is also provided in the air inlet duct (103).

5. The centrifuge ventilation structure according to claim 1, It is characterized in that The noise reduction structure is noise reduction cotton (4).

6. The centrifuge ventilation structure according to any one of claims 1 to 5, It is characterized in that A partition (212) is also provided in the middle of the bottom shell (2), and the upper and lower sides of the partition (212) are the centrifugal chamber (208) and the electric control chamber (209) respectively. A rotor barrel (204) connected to the partition (212) is also provided in the centrifugal chamber (208), and the rotor barrel (204) is used to connect the rotor (201). The rotor barrel (204) penetrates from top to bottom and the bottom opening is connected to the electric control chamber (209) through the partition through hole (213) on the partition (212). A rotor vent (210) is provided through the side wall of the rotor barrel (204), and the portion of the rotor barrel (204) located between the rotor vent (210) and the bottom opening of the rotor barrel (204) forms the rotor air duct (214).

7. The centrifuge ventilation structure according to claim 6, It is characterized in that A rotor (201) is disposed in the centrifugal chamber (208), a rotor motor (205) is disposed in the electric control chamber (209) for driving the rotor (201) to rotate, and the rotor motor (205) and the rotor (201) are connected to the rotor barrel (204).

8. The centrifuge ventilation structure according to claim 6, It is characterized in that The air outlet (206) is located on the side of the electric control cavity (209).

9. The centrifuge ventilation structure according to claim 8, It is characterized in that A first wind shield (211) is also provided in the electric control chamber (209); the top end of the first wind shield (211) is fixed to the partition (212); the partition through hole (213) and the air outlet (206) are respectively located on both sides of the first wind shield (211); in the heat dissipation duct (3), after air enters the electric control chamber (209), it can bypass the bottom of the first wind shield (211) and enter the air outlet (206).

10. The centrifuge ventilation structure according to claim 9, It is characterized in that A second wind shield (207) is also provided in the electric control chamber (209), and the second wind shield (207) is fixed to the side wall of the electric control chamber (209), and the second wind shield (207) is located below the air outlet (206) and higher than the bottom end of the first wind shield (211); in the heat dissipation duct (3), after the air bypasses the bottom of the first wind shield (211), it can enter the gap between the first wind shield (211) and the second wind shield (207), and then enter the air outlet (206) through the top of the second wind shield (207).

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