Efficient table type refrigerated centrifuge

Abstract

The utility model discloses an efficient table type refrigerated centrifuge which comprises a centrifuge body. The centrifugal chamber is embedded in the top of the centrifugal machine body and provided with a containing cavity with an opening in the upper end, and multiple sets of air holes are formed in the bottom wall of the centrifugal chamber from outside to inside in the circumferential direction; the sample placing assembly is detachably mounted in the centrifugal chamber; the centrifugal assembly is arranged in the centrifugal machine body and comprises a motor and a rotating rod, the rotating rod is installed at the output end of the motor, and the other end of the rotating rod is connected with the sample containing assembly. According to the centrifugal machine, the semiconductor chilling plate is used as a refrigerating piece, meanwhile, the air hole communicated with the freezing assembly is formed in the bottom of the centrifugal chamber, after the chilling plate cools air, the air is discharged into the centrifugal chamber along the air hole to be frozen, and in the centrifugal process or before centrifugal, the motor drives the rotating rod to rotate, so that the centrifugal machine is convenient to operate. And meanwhile, the rotating rod drives the fan blades to rotate, cold air can be quickly blown into the centrifugal chamber, and therefore the overall freezing efficiency can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of refrigerated centrifuge technology, specifically a high-efficiency benchtop refrigerated centrifuge. Background Technology

[0002] A centrifuge is a machine that uses centrifugal force to separate the components of a mixture of liquids and solid particles or liquids and liquids. Centrifuges are mainly used to separate solid particles from liquids in suspensions or to separate two immiscible liquids with different densities in emulsions. Benchtop high-speed refrigerated centrifuges are also a commonly used type of centrifuge and are generally used in scientific research, genetic engineering, life sciences, medicine, chemical industry and other fields.

[0003] Currently, the refrigeration method of refrigerated centrifuges generally involves designing a spiral cooling coil at the bottom of the centrifuge chamber, with one end of the cooling coil connected to a refrigeration device for refrigeration. Because there is a wall of a certain thickness between the centrifuge chamber and the cooling coil, each refrigeration time takes several minutes or even tens of minutes, which increases the centrifugation time of the sample. In addition, traditional refrigeration systems (such as liquid nitrogen) have a large overall structure, which is not conducive to the compactness of the centrifuge's overall structure, and there is still room for improvement. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency benchtop refrigerated centrifuge in order to solve the problems mentioned above.

[0005] The technical solution adopted by this utility model is as follows: A high-efficiency benchtop refrigerated centrifuge includes: a centrifuge body; a centrifuge chamber, which is embedded in the top of the centrifuge body and has an opening at the top, and the bottom wall of the centrifuge chamber has multiple sets of vent holes from the outside to the inside circumferential direction; a sample placement assembly, which is detachably installed in the centrifuge chamber; a centrifugation assembly, which is located in the centrifuge body, and the centrifugation assembly includes a motor and a rotating rod, the rotating rod is installed at the output end of the motor, and the other end of the rotating rod is connected to the sample placement assembly; a refrigeration assembly, which is located in the centrifuge body, and the refrigeration assembly includes a cooling element and a fan blade, the cooling element is located around the motor and directly below the vent holes, and the fan blade is located between the vent holes and the cooling element and is sleeved on the rotating rod.

[0006] In a preferred embodiment, the cooling element is a ring-shaped semiconductor cooling chip, with the cooling end of the cooling element facing the centrifuge chamber.

[0007] In a preferred embodiment, an aluminum radiator is attached to the hot end of the cooling component, and multiple heat dissipation fins are spaced apart on the bottom of the aluminum radiator, with the bottom of the aluminum radiator extending outside the centrifuge body.

[0008] In a preferred embodiment, the sample placement assembly includes a sample placement seat, a cover plate, and a threaded knob. The sample placement seat has multiple sample placement cavities circumferentially opened at the bottom. The cover plate covers the top of the sample placement seat. The bottom of the cover plate has multiple positioning protrusions circumferentially opened. The top of the sample placement seat has a corresponding positioning groove that accommodates the insertion of the positioning protrusions.

[0009] In a preferred embodiment, silicone pads are affixed to the inner wall of the sample placement cavity and the cover plate.

[0010] In a preferred embodiment, a polygonal rod is integrally provided at the top of the rotating rod, and a polygonal through hole adapted to the polygonal rod is opened at the center of the sample placement seat. A threaded hole is machined at the center of the top of the polygonal rod, and the screw part of the threaded knob passes through the cover plate and is threadedly installed in the threaded hole.

[0011] In a preferred embodiment, the side wall of the centrifuge chamber is provided with an air outlet that communicates with the interior of the centrifuge body.

[0012] In a preferred embodiment, the top of the centrifuge body is hinged to a top cover, and the front end of the top cover has a handle.

[0013] In a preferred embodiment, a maintenance cover is detachably installed on the side wall of the centrifuge body, and support feet lower than the heat dissipation fins are provided at the four corners of the bottom of the centrifuge body.

[0014] In a preferred embodiment, the centrifuge body is further provided with a control panel at the front end, and the control panel is separated from the centrifuge chamber and the refrigeration unit by a partition.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0016] 1. In this utility model, a semiconductor cooling chip is used as the cooling component. At the same time, a vent hole connected to the freezing component is designed at the bottom of the centrifuge chamber. After the cooling chip cools the air, it is discharged into the centrifuge chamber through the vent hole for freezing. During or before centrifugation, the motor drives the rotating rod to rotate, and the rotating rod drives the fan blade to rotate, which can quickly blow cold air into the centrifuge chamber, thereby improving the overall freezing efficiency and making freezing more efficient.

[0017] 2. In this utility model, the fan blades and the sample placement assembly share a single motor, which can save on overall manufacturing costs. At the same time, the combination of fan blades and semiconductor cooling chips is used to achieve freezing. Compared with traditional refrigeration equipment, the structure is more compact, thus making the overall structure of the refrigerated centrifuge more compact. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall internal planar structure of this utility model;

[0019] Figure 2 This is a simplified three-dimensional structural diagram of the present invention.

[0020] Figure 3 This is a simplified cross-sectional planar structural diagram of the sample placement component in this utility model;

[0021] Figure 4 This is a simplified top view of the transfer rod structure of this utility model;

[0022] Figure 5 This is a simplified top view of the cooling component in this utility model.

[0023] The markings in the diagram are: 1-Control panel, 2-Support feet, 3-Centrifuge body, 4-Refrigeration components, 5-Rotor, 51-Polygonal rod, 52-Threaded hole, 6-Motor, 7-Aluminum radiator, 8-Fan blades, 9-Ventilation hole, 10-Centrifuge chamber, 11-Top cover, 111-Handle position, 12-Sample placement assembly, 121-Sample placement seat, 122-Sample placement cavity, 123-Silicone pad, 124-Cover plate, 125-Positioning protrusion, 126-Threaded knob, 13-Air outlet, 14-Maintenance cover. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0025] Reference Figure 1-5 A high-efficiency benchtop refrigerated centrifuge includes: a centrifuge body 3 (powered by an external power source or AC power), a centrifuge chamber 10, a sample placement assembly 12, a centrifugation assembly, and a refrigeration assembly. The centrifuge chamber 10 is embedded in the top of the centrifuge body 3 and has an opening at the top. The bottom wall of the centrifuge chamber 10 has multiple sets of ventilation holes 9 circumferentially formed from the outside to the inside. The sample placement assembly 12 is detachably installed inside the centrifuge chamber 10. The centrifugation assembly is located inside the centrifuge body 3 and includes a motor 6 and a rotating rod 5. The rotating rod 5 is installed at the output end of the motor 6, and the other end of the rotating rod 5 is connected to the sample placement assembly 12. When centrifugation is required, the sample is placed into the sample placement assembly 12, and then the motor 6 drives the rotating rod 5 to rotate, which in turn rotates the sample inside the sample placement assembly 12, thus realizing the centrifugation operation.

[0026] Among them, motor 6 is a waterproof motor, or motor 6 has an additional protective cover on its outer end, which will not be described in detail here.

[0027] Furthermore, the refrigeration assembly is located inside the centrifuge body 3. The refrigeration assembly includes a cooling element 4 and a fan blade 8. The cooling element 4 is located around the motor 6 and directly below the vent hole 9. The fan blade 8 is located between the vent hole 9 and the cooling element 4 and is fixed to the rotating rod 5. The cooling element 4 is an annular semiconductor cooling chip, with the cooling end of the cooling element 4 facing the centrifuge chamber 10. The semiconductor cooling chip is used as the cooling element 4. At the same time, a vent hole 9 connected to the refrigeration assembly is designed at the bottom of the centrifuge chamber 10. After the semiconductor cooling chip cools the air, it is discharged into the centrifuge chamber through the vent hole 9. The centrifuge chamber 10 is used for freezing operations. During or before centrifugation, the motor 6 drives the rotor 5 to rotate, and the rotor 5 simultaneously drives the fan blades 8 to rotate, which can quickly blow cold air into the centrifuge chamber 10, thereby improving the overall freezing efficiency and making freezing more efficient. The fan blades 8 and the sample placement assembly 12 share a single motor 6, which can save on overall manufacturing costs. At the same time, the freezing is achieved by using the fan blades 8 in conjunction with the semiconductor cooling chip. Compared with traditional refrigeration equipment, the structure is more compact, thus making the overall structure of the refrigerated centrifuge more compact.

[0028] Furthermore, the centrifuge chamber 10 has an air outlet 13 on its side wall that communicates with the interior of the centrifuge body 3. The cooled air can be returned to the refrigeration unit through the air outlet 13, which can reduce the energy consumption.

[0029] Waterproof and breathable membranes can be additionally installed in the air outlet 13 and the vent hole, which is not limited here.

[0030] Furthermore, an aluminum radiator 7 is attached to the hot end of the cooling component 4. Multiple heat dissipation fins are distributed at intervals on the bottom of the aluminum radiator 7. The bottom of the aluminum radiator 7 extends outside the centrifuge body 3. The aluminum radiator 7 can dissipate the heat from the hot end of the cooling component 4 to the outside, avoiding overheating of the cooling component 4 and ensuring the normal operation of the cooling process.

[0031] Furthermore, the sample placement assembly 12 includes a sample placement seat 121, a cover plate 124, and a threaded knob 126. The sample placement seat 121 has multiple sample placement cavities 122 circumferentially opened at the bottom. The cover plate 124 covers the top of the sample placement seat 121. The cover plate 124 has multiple positioning protrusions 125 circumferentially opened at the bottom. The top of the sample placement seat 121 has corresponding positioning grooves that accommodate the insertion of the positioning protrusions 125. The cooperation between the positioning protrusions 125 and the positioning grooves can help limit the installation position of the cover plate 124 and prevent the cover plate 124 from rotating during the centrifugation operation.

[0032] Furthermore, silicone pads 123 are attached to the inner wall of the sample placement cavity 122 and the cover plate 124. The silicone pads 123 can buffer and protect the sample to a certain extent, preventing damage such as that to glass containers when they collide.

[0033] Furthermore, the top of the rotating rod 5 is integrally provided with a polygonal rod 51, and the center of the sample placement seat 121 is provided with a polygonal through hole adapted to the polygonal rod 51. The top center of the polygonal rod 51 is machined with a threaded hole 52. The screw part of the threaded knob 126 passes through the cover plate 124 and is threaded into the threaded hole 52. The top of the rotating rod 5 uses a polygonal 51 as the connection part with the sample placement seat 121, which can limit the operation of the sample placement seat 121 in the horizontal direction and prevent the sample placement seat 121 from rotating during centrifugation. When the sample placement seat 121 needs to be replaced, unscrew the threaded knob 126, then take out the cover plate 124, and lift the sample placement seat 121 upwards to replace it, which also makes the installation and removal of the sample placement seat 121 more convenient.

[0034] Furthermore, the top of the centrifuge body 3 is hinged to a top cover 11, and the front end of the top cover 11 has a handle 111, which allows the top cover 11 to be easily opened and closed upwards.

[0035] Furthermore, a maintenance cover 14 is detachably installed on the side wall of the centrifuge body 3. The four corners of the bottom of the centrifuge body 3 are provided with support feet 2 that are lower than the heat dissipation fins. Opening the maintenance cover 14 allows for cleaning and maintenance of the inside of the centrifuge body, such as wiping away dust or condensed water droplets. At the same time, since the support feet 2 are lower than the heat dissipation fins, a heat dissipation space can be formed between the centrifuge body 3 and the support feet 2 to meet heat dissipation requirements.

[0036] Furthermore, the centrifuge body 3 is also equipped with a control panel 1 at the front end. The control panel 1 is separated from the centrifuge chamber 10 and the refrigeration unit by a partition. The centrifuge body 3 or the centrifuge chamber 10 is also equipped with a temperature sensor that is electrically connected to the control panel 1 to monitor internal temperature changes in real time.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency benchtop refrigerated centrifuge, characterized in that, include: Centrifuge body; The centrifuge chamber is a receiving cavity embedded in the top of the centrifuge body and has an opening at the top. The bottom wall of the centrifuge chamber has multiple sets of ventilation holes from the outside to the inside circumferential direction. The sample placement assembly is detachably installed inside the centrifuge chamber; The centrifugation assembly is located inside the centrifuge body. The centrifugation assembly includes a motor and a rotor. The rotor is installed at the output end of the motor, and the other end of the rotor is connected to the sample placement assembly. The refrigeration unit is located inside the centrifuge body. The refrigeration unit includes a cooling element and a fan blade. The cooling element is located around the motor and directly below the vent hole. The fan blade is located between the vent hole and the cooling element and is fixed on the rotating rod.

2. The high-efficiency benchtop refrigerated centrifuge as described in claim 1, characterized in that: The cooling element is a ring-shaped semiconductor cooling chip, with the cooling end of the cooling element facing the centrifuge chamber.

3. The high-efficiency benchtop refrigerated centrifuge as described in claim 1, characterized in that: An aluminum radiator is attached to the hot end of the cooling component. Multiple heat dissipation fins are distributed at intervals on the bottom of the aluminum radiator, and the bottom of the aluminum radiator extends out of the centrifuge body.

4. The high-efficiency benchtop refrigerated centrifuge as described in claim 1, characterized in that: The sample placement assembly includes a sample placement base, a cover plate, and a threaded knob. The sample placement base has multiple sample placement cavities circumferentially opened at the bottom. The cover plate covers the top of the sample placement base. The bottom of the cover plate has multiple positioning protrusions circumferentially opened. The top of the sample placement base has corresponding positioning grooves to accommodate the insertion of the positioning protrusions.

5. A high-efficiency benchtop refrigerated centrifuge as described in claim 1, characterized in that: Silicone pads are attached to the inner wall of the sample placement chamber and the cover plate.

6. A high-efficiency benchtop refrigerated centrifuge as described in claim 3, characterized in that: The top of the rotating rod is integrally provided with a polygonal rod, and the center of the sample placement seat is provided with a polygonal through hole adapted to the polygonal rod. The top center of the polygonal rod is machined with a threaded hole, and the screw part of the threaded knob passes through the cover plate and is threaded into the threaded hole.

7. A high-efficiency benchtop refrigerated centrifuge as described in claim 1, characterized in that: The side wall of the centrifuge chamber has an air outlet that is connected to the interior of the centrifuge body.

8. A high-efficiency benchtop refrigerated centrifuge as described in claim 1, characterized in that: The top of the centrifuge body is hinged to a top cover, and the front end of the top cover has a handle.

9. A high-efficiency benchtop refrigerated centrifuge as described in claim 1, characterized in that: The centrifuge body has a detachable maintenance cover on its side wall, and the bottom of the centrifuge body has support feet at the four corners that are lower than the heat dissipation fins.

10. A high-efficiency benchtop refrigerated centrifuge as described in claim 1, characterized in that: The centrifuge body is also equipped with a control panel at the front, which is separated from the centrifuge chamber and refrigeration components by a partition.

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