High-speed refrigerated centrifuge

Abstract

The utility model discloses a high-speed refrigerated centrifugal machine, which relates to the field of refrigerated centrifugal machine structures and comprises a fixed seat, a centrifugal chamber arranged in the fixed seat, a driving component arranged in the fixed seat, a rotating head rotatably arranged in the centrifugal chamber and connected with the driving component, and a refrigeration component arranged on the fixed seat and capable of realizing cooling in the centrifugal chamber. The rotating head comprises a rotating seat, the rotating seat is connected with the driving assembly, a plurality of placing grooves are annularly formed in the top of the rotating seat, a refrigeration ring groove is coaxially formed in the bottom of the rotating seat, and connecting grooves are formed in the sides, close to the refrigeration ring groove, of the placing grooves and connected with the refrigeration ring groove; according to the high-speed freezing centrifugal machine, sufficient buffer protection can be provided for a sample, meanwhile, the cooling capacity generated by the refrigerating assembly can be quickly transferred to the sample in the containing groove, the transfer loss is reduced, and the freezing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of refrigerated centrifuge structure, specifically a high-speed refrigerated centrifuge. Background Technology

[0002] A high-speed refrigerated centrifuge is a device that performs centrifugation operations at low temperatures. During operation, the rotor generates significant centrifugal force and vibration. To prevent samples from being subjected to excessive impact during centrifugation, a buffer protection structure is typically provided. However, the cooling transfer efficiency of this buffer protection structure is relatively low, and the cold energy generated by the cooling components cannot be quickly transferred to the sample in the placement tank, resulting in significant losses and low freezing efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a high-speed refrigerated centrifuge that can provide sufficient buffer protection for the sample while enabling the cold energy generated by the refrigeration components to be quickly transferred to the sample in the placement tank, reducing transfer loss and improving freezing efficiency.

[0004] The above-mentioned optimized structure of this utility model is achieved through the following technical solution: a high-speed refrigerated centrifuge, including a fixed base;

[0005] Centrifuge chamber, wherein the centrifuge chamber is disposed within the fixed base;

[0006] A drive assembly, wherein the drive assembly is disposed within the fixed base;

[0007] A rotating head, which is rotatably disposed within the centrifuge chamber and connected to the drive assembly;

[0008] A refrigeration unit, which is mounted on the fixed base, is used to cool the centrifuge chamber.

[0009] The rotating head includes a rotating base, which is connected to the drive assembly;

[0010] Multiple placement slots are arranged in a ring on the top of the rotating seat;

[0011] A cooling ring groove is coaxially disposed at the bottom of the rotating seat;

[0012] A connecting groove is provided on the side of the placement groove near the cooling ring groove and is connected to the cooling ring groove.

[0013] In some embodiments, the connecting groove is located in the middle of the placement groove, and the height of the connecting groove is between one-half and one-third of the depth of the placement groove.

[0014] In some embodiments, the rotating head further includes a buffer sleeve disposed on the inner wall of the placement groove.

[0015] In some embodiments, the rotating head further includes a plurality of flow guide grooves, which are equally spaced on the buffer sleeve along the depth direction of the placement groove, and all of the plurality of flow guide grooves are connected to the connecting groove.

[0016] In some embodiments, the rotating head further includes multiple guide plates, which are equally spaced on the inner wall of the cooling ring groove on the side away from the placement groove, and the multiple guide plates spiral upwards along the direction from the bottom of the rotating seat to the top of the rotating seat.

[0017] In some embodiments, the rotating head further includes an inverted conical groove, which is coaxially disposed on the top of the rotating seat, and a plurality of placement grooves are provided through the sidewall of the inverted conical groove.

[0018] In some embodiments, a limiting cover is also included, which is inserted into the inverted conical groove;

[0019] A locking screw is rotatably mounted on the limiting cover, and the locking screw is screwed into the inverted tapered groove.

[0020] In some embodiments, an elastic rubber ring is provided on the side wall of the limiting cover ring.

[0021] In summary, this utility model has the following beneficial effects:

[0022] This invention, through a refrigeration ring groove and a connecting groove, can quickly and evenly guide the cold air in the centrifuge chamber to the area around the centrifuge tubes placed in the groove, reducing transmission loss and improving refrigeration efficiency. Simultaneously, multiple spirally rising guide plates are installed within the refrigeration ring groove to guide the cold air into a spiral flow path, thereby increasing the airflow velocity and improving heat exchange efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model without the limiting cover and locking screw;

[0024] Figure 2 This is a cross-sectional view of the present invention without the limiting cover, locking screw, and freezing assembly;

[0025] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 This is a schematic diagram of the connection structure between the rotating head, the limiting cover, and the locking screw of this utility model;

[0027] Figure 5This is a schematic diagram of the structure of the rotating head of this utility model;

[0028] Figure 6 This is a structural schematic diagram of the present invention from another perspective of the rotating head.

[0029] In the diagram: 1. Fixed base; 2. Centrifuge chamber; 3. Drive assembly; 4. Rotor; 41. Rotating seat; 42. Placement slot; 43. Refrigeration ring slot; 44. Connecting slot; 45. Buffer sleeve; 46. Guide ring slot; 47. Guide plate; 48. Inverted conical groove; 5. Refrigeration assembly; 6. Limiting cover; 7. Locking screw Detailed Implementation

[0030] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] refer to Figure 1-6 A high-speed refrigerated centrifuge includes a fixed base 1, a centrifuge chamber 2, a drive assembly 3, a rotor 4, and a refrigeration assembly 5. The fixed base 1 provides support and a mounting foundation for the entire centrifuge. The centrifuge chamber 2 is located within the fixed base 1, providing space for centrifugation operations. The drive assembly 3 is located within the fixed base 1 and drives the rotor 4 to rotate. The drive assembly 3 may include a drive motor, which is located within the fixed base 1. Its output shaft extends into the centrifuge chamber 2 and is connected to the rotor 4 via a key connection. This is prior art and will not be described in detail here. The rotor 4 rotates within the centrifuge chamber 2, and a sample to be centrifuged is placed on the rotor 4. The refrigeration assembly 5 is located on the fixed base 1 and cools the centrifuge chamber 2. The refrigeration assembly 5 may include a refrigeration device connected to a cold coil. The cold coil is in close contact with the outer circumference of the centrifuge chamber 2. The refrigeration device cools the cold coil, thereby cooling the centrifuge chamber 2. This is prior art and will not be described in detail here.

[0032] The rotor 4 includes a rotating base 41, multiple placement slots 42, a cooling ring slot 43, and a connecting slot 44. The rotating base 41 is connected to the drive assembly 3. The rotating base 41 can rotate at high speed in the centrifuge chamber 2 under the power of the drive assembly 3. The rotating base 41 can be made of high-strength alloy steel to give it sufficient strength and rigidity. Multiple placement slots 42 are arranged in a ring on the top of the rotating base 41 for placing centrifuge tubes containing samples to be centrifuged. The ring distribution ensures that the centrifugal force on the centrifuge tubes is evenly distributed when the rotor 4 rotates, which is beneficial to the stable separation of samples. The number of placement slots 42 can be 12. The size and number of placement slots 42 can be designed according to the specifications of the centrifuge tubes and actual needs to make them compatible with the corresponding centrifuge tubes and ensure that the centrifuge tubes can be placed stably in them. The cooling ring groove 43 is coaxially located at the bottom of the rotating seat 41. The cooling ring groove 43 is annular in shape, and its inner and outer diameters are designed according to the size of the rotating seat 41 to ensure that it can accommodate sufficient cold air flow and can be connected to the placement groove 42. The connecting groove 44 is located on the side of the placement groove 42 near the cooling ring groove 43 and is connected to the cooling ring groove 43. The cold air in the centrifuge chamber 2 passes through the cooling ring groove 43 and the connecting groove 44 in sequence and enters the placement groove 42, transferring the cold air to the centrifuge tubes and providing a low-temperature environment for the samples placed in the placement groove 42, thereby achieving rapid cooling of the centrifuge tubes.

[0033] In some embodiments, the connecting groove 44 is located in the middle of the placement groove 42, and the height of the connecting groove 44 is between one-half and one-third of the depth of the placement groove 42. This ensures the stable placement of the centrifuge tube in the placement groove 42 and allows the cold air to form a reasonable flow path in the placement groove 42, effectively cooling the centrifuge tube.

[0034] In some embodiments, the rotor 4 further includes a buffer sleeve 45 disposed on the inner wall of the placement tank 42. During centrifugation, the centrifuge tubes are subjected to significant centrifugal force and vibration. The buffer sleeve 45 can absorb these impact forces, reduce the shaking and vibration of the centrifuge tubes, and protect the centrifuge tubes from damage. The buffer sleeve 45 can be made of an elastic material, such as rubber or silicone, which can effectively absorb and disperse centrifugal force, protect the sample and sample container, and has good elasticity and wear resistance. At the same time, it can increase the friction between the centrifuge tubes and the placement tank 42, thereby improving the stability of the centrifuge tubes within the placement tank 42.

[0035] In some embodiments, the rotor 4 further includes a plurality of flow-guiding annular grooves 46, which are evenly spaced on the buffer sleeve 45 along the depth direction of the placement groove 42, and are all connected to the connecting groove 44. The flow-guiding annular grooves 46 can further guide the flow of cold air in the placement groove 42, so that the cold air can be evenly distributed around the centrifuge tube, thereby avoiding the formation of local eddies or dead zones in the placement groove 42 and improving the uniformity of the cooling effect. The number, width and depth of the flow-guiding annular grooves 46 are determined according to the depth of the placement groove 42 and the actual needs, ensuring that the cold air can pass smoothly through the flow-guiding annular grooves 46, be quickly and evenly transferred to all parts of the placement groove 42, and fully contact the centrifuge tube, so that the temperature of the centrifuge tube drops evenly.

[0036] In some embodiments, the rotor 4 further includes multiple guide plates 47, which are evenly spaced on the inner wall of the cooling ring groove 43 on the side away from the placement groove 42, and spirally rise from the bottom to the top of the rotating seat 41. The spirally rising guide plates 47 enable cold air to form a spiral flow path within the cooling ring groove 43, increasing the contact area between the cold air and the inner wall of the cooling ring groove 43, improving heat exchange efficiency, and also allowing the cold air to be more evenly distributed into each connecting groove 44. The number of guide plates 47 is determined according to the size of the cooling ring groove 43 and actual needs, generally 6-10. Their length, width, and height are designed according to the inner diameter, outer diameter, and depth of the cooling ring groove 43 to ensure effective guidance of cold air flow.

[0037] In some embodiments, the rotor 4 further includes an inverted conical groove 48, which is coaxially disposed on the top of the rotating seat 41. A plurality of placement grooves 42 are provided through the side wall of the inverted conical groove 48. The inverted conical groove 48 can achieve the inclined setting of the placement grooves 42, thereby fixing the top of the centrifuge tube and preventing the centrifuge tube from coming off when rotating at high speed.

[0038] In some embodiments, the system further includes a limiting cap 6 and a locking screw 7. The limiting cap 6 is inserted into the inverted conical groove 48, and its shape is adapted to the inverted conical groove 48. It can fix the sample container placed in the placement groove 42 to prevent it from shaking or falling off during centrifugation. The limiting cap 6 can be made of high-strength material with sufficient strength and rigidity to withstand centrifugal force and vibration. The locking screw 7 is rotatably mounted on the limiting cap 6 and is screwed into the inverted conical groove 48. A retaining ring is coaxially provided on the locking screw 7, which is pressed against the limiting cap 6. By rotating the locking screw 7, the tightening depth of the locking screw 7 in the inverted conical groove 48 can be changed. Thus, through the pressing of the retaining ring, the limiting cap 6 is firmly fixed to the inverted conical groove 48, ensuring the safety of the sample during centrifugation.

[0039] In some embodiments, the limiting cover 6 is provided with an elastic rubber ring on its annular sidewall, which can enhance the sealing between the limiting cover 6 and the inverted conical groove 48, prevent the sample in the centrifuge tube from leaking, and at the same time achieve flexible contact between the limiting cover 6 and the centrifuge tube, protecting the centrifuge tube and preventing it from being damaged.

[0040] In some embodiments, a control unit is also included. The control unit is mounted on the fixed base 1 and can be electrically connected to the drive assembly 3 and the refrigeration assembly 5. It can set corresponding parameters according to different centrifugation requirements to meet different centrifugation needs. This is prior art and will not be described in detail here.

[0041] The specific working principle is as follows:

[0042] When centrifugation is required, first, select appropriate centrifuge tubes according to the experimental requirements and load the samples into the tubes. Then, place an even number of centrifuge tubes into the placement slot 42 of the rotor 4, ensuring the tubes are properly positioned. Next, insert the limiting cap 6 into the inverted conical groove 48 and rotate the locking screw 7 to securely fix the limiting cap 6 onto the inverted conical groove 48, thereby securing the centrifuge tubes. Afterward, close the centrifuge chamber door 2 and set the centrifugation speed, time, and temperature parameters on the control panel.

[0043] Start the centrifuge, drive component 3 drives rotor 4 to rotate, and freezing component 5 starts to cool, performing high-speed frozen centrifugation separation of the sample.

[0044] During this process, the drive assembly 3 starts working, driving the rotating seat 41 of the rotor 4 to rotate at high speed. The rotating seat 41 drives the centrifuge tubes in the placement slot 42 to rotate together, generating centrifugal force, which separates the samples in the centrifuge tubes according to their different densities. At the same time, the freezing assembly 5 starts cooling, and cold air enters the cooling ring groove 43 through the cooling pipe. Guided by the guide plate 47, the cold air forms a spiral flow in the cooling ring groove 43, and then enters the placement slot 42 through the connecting groove 44. Under the action of the guide ring groove 46, the cold air is evenly distributed around the centrifuge tubes, providing a low-temperature environment for the samples. The limiting cap 6 and the locking screw 7 firmly fix the centrifuge tubes in the inverted conical groove 48 to prevent the centrifuge tubes from falling out during high-speed rotation.

[0045] After centrifugation, the centrifuge will stop automatically. Open the centrifuge chamber door 2, loosen the locking screw 7, remove the limit cover 6, and take out the centrifuge tubes to complete the experiment.

[0046] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high-speed refrigerated centrifuge, comprising a fixed base (1); Centrifuge chamber (2), wherein the centrifuge chamber (2) is disposed within the fixed base (1); A drive assembly (3) is disposed within the fixed base (1); Rotary head (4), which is rotatably disposed in the centrifuge chamber (2) and connected to the drive assembly (3); The freezing component (5) is mounted on the fixed base (1) and can achieve cooling in the centrifuge chamber (2); Its features are: The rotating head (4) includes a rotating seat (41), which is connected to the drive assembly (3); Multiple placement slots (42) are arranged in a ring on the top of the rotating seat (41); Cooling ring groove (43), the cooling ring groove (43) is coaxially disposed at the bottom of the rotating seat (41); A connecting groove (44) is provided on the side of the placement groove (42) near the cooling ring groove (43) and is connected to the cooling ring groove (43).

2. The high-speed refrigerated centrifuge according to claim 1, characterized in that: The connecting groove (44) is located in the middle of the placement groove (42), and the height of the connecting groove (44) is between one-half and one-third of the depth of the placement groove (42).

3. A high-speed refrigerated centrifuge according to claim 1, characterized in that: The rotating head (4) also includes a buffer sleeve (45), which is disposed on the inner wall of the placement groove (42).

4. A high-speed refrigerated centrifuge according to claim 3, characterized in that: The rotating head (4) also includes multiple flow guide ring grooves (46), which are equally spaced on the buffer sleeve (45) along the depth direction of the placement groove (42), and all of the multiple flow guide ring grooves (46) are connected to the connecting groove (44).

5. A high-speed refrigerated centrifuge according to claim 1, characterized in that: The rotating head (4) also includes multiple guide plates (47), which are equally spaced on the inner wall of the cooling ring groove (43) on the side away from the placement groove (42), and the multiple guide plates (47) spiral upward along the direction from the bottom of the rotating seat (41) to the top of the rotating seat (41).

6. A high-speed refrigerated centrifuge according to claim 1, characterized in that: The rotating head (4) also includes an inverted conical groove (48), which is coaxially disposed on the top of the rotating seat (41), and a plurality of placement grooves (42) are provided through the side wall of the inverted conical groove (48).

7. A high-speed refrigerated centrifuge according to claim 6, characterized in that: It also includes a limiting cover (6), which is inserted into the inverted conical groove (48); The locking screw (7) is rotatably mounted on the limiting cover (6) and is screwed into the inverted conical groove (48).

8. A high-speed refrigerated centrifuge according to claim 7, characterized in that: The limiting cover (6) has an elastic rubber ring on its ring side wall.

Images