Medical centrifuge temperature calibration device

Abstract

A medical centrifuge temperature calibration device relates to the technical field of medical instruments, and comprises a box body, a temperature detection assembly, a refrigeration system and a heating element, the temperature detection assembly is arranged in a working chamber to detect the temperature in the working chamber, the temperature is fed back to a control unit, and the control unit is used for controlling refrigeration to the refrigeration system to reduce the temperature. According to the centrifugal machine, the control unit sends the control instruction to the heating element to heat so as to increase the temperature in the working chamber, so that the temperature in the centrifugal machine is accurately corrected, the requirement for detecting the temperature is met, the centrifugal machine can provide a cultivation environment with the stable temperature, and the use requirement for separation of different biological substances is met.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a temperature calibration device for a medical centrifuge. Background Art

[0002] In medical testing, centrifuges are commonly used to separate serum and plasma, precipitate proteins, or examine urine sediment. Centrifuges can rapidly precipitate suspended particles in a mixed solution, thereby separating components of various substances with different specific gravities. Centrifuges utilize the powerful centrifugal force generated by the high-speed rotation of the centrifuge rotor to force particles in the liquid to overcome diffusion and accelerate sedimentation, thereby separating substances in the sample with different sedimentation coefficients and buoyant densities.

[0003] Currently, existing medical centrifuges cannot fully monitor internal temperatures, resulting in inaccurate temperature measurements. For example, patent number CN 220982481 U discloses a "temperature measurement and calibration device for a medical cryogenic centrifuge." However, this technology only addresses the accuracy of temperature measurement and does not accurately calibrate the centrifuge's internal temperature to meet measurement requirements.

[0004] Therefore, in order to solve the above problems, a medical centrifuge temperature calibration device is proposed. Utility Model Content

[0005] In view of the problems and shortcomings in the prior art, the utility model provides a temperature calibration device for a medical centrifuge.

[0006] The technical solution of this utility model is as follows:

[0007] A medical centrifuge temperature calibration device, the centrifuge comprising a housing, wherein a working chamber and a first element chamber are provided in an upper and lower spaced relationship, wherein a centrifugal turntable is provided in the working chamber, and the centrifugal turntable is driven by a motor located in the first element chamber below;

[0008] The calibration device includes a temperature detection assembly, which is rotatably and vertically movable in a working chamber by a driving mechanism and is located above a centrifugal turntable;

[0009] A refrigeration system and a heating element, wherein the refrigeration system is connected to the working chamber through a second element chamber located on one side of the box body, and the heating element is arranged on the side wall on the other side of the working chamber;

[0010] The refrigeration system comprises:

[0011] The semiconductor refrigeration chip is embedded in the side wall of the box body of the working room, with the cooling surface facing the working room and the heat dissipation surface facing the second element chamber;

[0012] The heat dissipation assembly includes a radiator disposed in the second element chamber and in contact with the heat dissipation surface of the semiconductor refrigeration plate, and a first heat dissipation fan fixed on the outside of the radiator;

[0013] The refrigeration assembly includes a refrigerator disposed in the working chamber and in contact with the front cold surface of the semiconductor refrigeration plate, and a pump and a refrigerant tank circulated in communication with the refrigerator and disposed in the second element chamber;

[0014] The temperature detection component, the heating element, the semiconductor refrigeration plate and the first heat dissipation fan are all in communication connection with the control module arranged above the second element chamber.

[0015] In order to improve the heat dissipation effect, the temperature calibration device of the present invention further includes a second heat dissipation fan arranged in the working chamber, fixed on the side wall of the box body in the working chamber and located above the refrigerator. The refrigerator is a heat-conducting metal coil radiator.

[0016] In order to ensure the temperature in the working room and reduce the energy consumption caused by heat exchange, an insulating layer is also provided on the side wall of the working room.

[0017] The driving mechanism includes a first motor arranged at the top of the casing, a driving arm connected to the first motor and horizontally arranged in the working chamber, a second motor arranged below the end of the driving arm, a driving rod connected to the second motor and extending downward, and a temperature detection component sliding up and down on the driving rod via a threaded pair. The driving arm extends radially along the centrifugal turntable to a side close to the inner wall of the casing. The temperature detection component includes a slider connected to the driving rod via a threaded pair, and a temperature sensor fixed on the slider. In order to improve stability, the driving mechanism also includes a guide rod connected to the lower end of the driving arm in parallel with the driving rod.

[0018] The beneficial effects of the utility model are:

[0019] In the present invention, a temperature detection component is provided in the working chamber to detect the temperature in the working chamber and feed it back to the control unit. The control unit controls the refrigeration system to control refrigeration to lower the temperature, and the control unit sends a control instruction to the heating element to heat to increase the temperature in the working chamber, thereby achieving accurate correction of the internal temperature of the centrifuge to meet the requirements of the detected temperature, so that the centrifuge can provide a temperature-stable cultivation environment, which has met the requirements of separation of different biological substances. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of an embodiment;

[0021] Figure 2 It is the connection diagram of the control components;

[0022] 1. Box body; 11. Working chamber; 111. Insulation layer; 12. First element chamber; 13. Second element chamber; 2. Centrifugal turntable; 3. Temperature detection assembly; 4. Driving mechanism; 41. First motor; 42. Driving arm; 43. Second motor; 44. Driving rod; 45. Guide rod; 5. Second cooling fan; 6. Refrigeration system; 7. Heating element; 8. Control unit; 61. Refrigerator; 62. Semiconductor refrigeration plate; 63. Radiator; 64. First cooling fan; 65. Refrigerant tank; 66. Pump. DETAILED DESCRIPTION

[0023] The following will further illustrate the technical means adopted to achieve the predetermined inventive purpose of the present invention in conjunction with the drawings in the embodiments of the present invention.

[0024] See also Figure 1 and Figure 2 As shown, a medical centrifuge temperature calibration device includes the following structural components:

[0025] The box body 1 has a working chamber 11 and a first element chamber 12 spaced apart from each other. A centrifugal turntable 2 is provided in the working chamber 11 and is driven by a motor located in the first element chamber 12 below.

[0026] The temperature detection assembly 3 is rotatably and vertically movable in the working room 11 through the driving mechanism 4 and is located above the centrifugal turntable 2 . The temperature detection assembly 3 includes a temperature sensor for detecting the temperature in the working room 11 .

[0027] The refrigeration system 6 and the heating element 7 are connected to the working room 11 through the second element chamber 13 located on one side of the box body 1. The heating element 7 is arranged on the side wall on the other side of the working room 11. The heating element 7 can be a WPS-230 model heating resistor.

[0028] The refrigeration system 6 includes a semiconductor refrigeration sheet 62, a heat dissipation component and a refrigeration component.

[0029] The semiconductor refrigeration sheet 62 is embedded in the side wall of the box body 1 of the working room 11 , with the cooling surface facing the working room 11 and the heat dissipation surface facing the second element chamber 13 .

[0030] The heat dissipation assembly includes a radiator 63 disposed in the second element chamber 13 and in contact with the heat dissipation surface of the semiconductor refrigeration plate 62 , and a first heat dissipation fan 64 fixed on the outside of the radiator 63 .

[0031] The refrigeration assembly includes a refrigerator 61 disposed in the working chamber 11 and connected to the front cold surface of the semiconductor refrigeration plate 62, a pump 66 and a refrigerant tank 65 in circulation communication with the refrigerator 61 and disposed in the second element chamber 13. The refrigerant tank 65 is filled with a coolant, such as water.

[0032] The temperature detection assembly 3 , the heating element 7 , the semiconductor cooling plate 62 and the first heat dissipation fan 64 are all connected to the control module disposed above the second element chamber 13 for communication.

[0033] During specific use, the temperature detection component 3 is driven by the driving mechanism 4 to rotate circumferentially or move up and down to detect the temperature in the studio 11, and the result is fed back to the control unit 8. The control unit 8 compares the received temperature detection result with the set value. If it is higher than the set value, the refrigeration system 6 is controlled to work to cool the studio 11. If the temperature is lower than the set value, the heating element 7 is controlled to work to increase the temperature in the studio 11, thereby realizing accurate measurement and correction of the temperature in the studio 11, which meets the use requirements of separation of different biological substances.

[0034] In order to improve the heat dissipation effect, the temperature calibration device of the present invention further includes a second heat dissipation fan 5 arranged in the working room 11, fixed on the side wall of the box body 1 in the working room 11, and located above the refrigerator 61. The refrigerator 61 is a heat-conducting metal coil radiator 63.

[0035] In order to ensure the temperature in the working room 11 and reduce the energy consumption caused by heat exchange, an insulating layer 111 is provided on the inner wall of the working room 11. In this embodiment, the insulating layer 111 is made of hard polyurethane foam plastic.

[0036] The driving mechanism 4 includes a first motor 41 arranged at the top of the casing 1, a driving arm 42 connected to the first motor 41 and horizontally arranged in the working room 11, a second motor 43 arranged below the end of the driving arm 42, a driving rod 44 connected to the second motor 43 and extending downward, and a temperature detection component 3 is arranged on the driving rod 44 for sliding up and down through a threaded pair. The driving arm 42 extends radially along the centrifugal turntable 2 to a side close to the inner wall of the casing 1. The temperature detection component 3 includes a slider connected to the driving rod 44 through a threaded pair, and a temperature sensor fixed on the slider. In order to improve stability, the driving mechanism 4 also includes a guide rod 45, which is connected to the lower end of the driving arm 42 in parallel with the driving rod 44.

[0037] During operation, the first motor drives the driving arm to rotate, thereby driving the temperature sensor located on the driving rod to rotate circumferentially, realizing temperature detection at different circumferential positions, and the second motor drives the driving rod to rotate, so that the slider matched with its thread drives the temperature sensor to move up and down, thereby realizing temperature detection in spaces at different heights.

[0038] The above is a preferred embodiment of the present invention, but the present invention is not limited to the above embodiments and examples. Various changes, equivalent substitutions, improvements, etc. made within the scope of knowledge possessed by those skilled in the art without departing from the concept of the present invention should be included in the scope of protection of the present invention.

Claims

1. A medical centrifuge temperature calibration device, the centrifuge comprising a housing (1), wherein a working chamber (11) and a first element chamber (12) are provided in the working chamber (11) and are spaced apart from each other. A centrifugal turntable (2) is provided in the working chamber (11), and the centrifugal turntable (2) is driven by a motor located below in the first element chamber (12); the calibration device comprises a temperature detection assembly (3), which is rotatably and vertically movable in the working chamber (11) by a driving mechanism (4) and is located above the centrifugal turntable (2); It is characterized by: It also includes a refrigeration system (6) and a heating element (7), wherein the refrigeration system (6) is connected to the working room (11) through a second element chamber (13) located on one side of the box body (1), and the heating element (7) is arranged on the side wall on the other side of the working room (11); The refrigeration system (6) comprises: A semiconductor refrigeration sheet (62) is embedded in the side wall of the box body (1) of the working room (11), with the cooling surface facing the working room (11) and the heat dissipation surface facing the second element chamber (13); The heat dissipation assembly includes a radiator (63) disposed in the second element chamber (13) and in contact with the heat dissipation surface of the semiconductor refrigeration plate (62), and a first heat dissipation fan (64) fixed on the outside of the radiator (63); A refrigeration assembly includes a refrigerator (61) disposed in a working chamber (11) and connected to a front cold surface of a semiconductor refrigeration plate (62), and a pump (66) and a refrigerant tank (65) circulated in communication with the refrigerator and disposed in a second element chamber (13); The temperature detection component (3), the heating element (7), the semiconductor cooling plate (62) and the first heat dissipation fan (64) are all communicatively connected to a control module arranged above the second element chamber (13).

2. The temperature calibration device according to claim 1, characterized in that It also includes a second heat dissipation fan (5) arranged in the working room (11), fixed on the side wall of the box body (1) in the working room (11), and located above the refrigerator.

3. The temperature calibration device according to claim 2, characterized in that: The refrigerator (61) is a heat-conducting metal coil radiator (63).

4. The temperature calibration device according to claim 3, characterized in that It also includes a heat insulating layer (111) arranged on the inner side wall of the working room (11).

5. The temperature calibration device according to any one of claims 1 to 4, characterized in that: The driving mechanism (4) comprises a first motor (41) arranged on the top of the box (1), a driving arm (42) connected to the first motor (41) and horizontally arranged in the working room (11), a second motor (43) arranged below the end of the driving arm (42), and a driving rod (44) connected to the second motor (43) and extending downward. The temperature detection component (3) is slidably arranged on the driving rod (44) via a threaded pair.

6. The temperature calibration device according to claim 5, characterized in that: The driving arm (42) extends along the radial direction of the centrifugal turntable (2) to a side close to the inner wall of the box body (1).

7. The temperature calibration device according to claim 6, characterized in that: The temperature detection assembly (3) comprises a slider connected to the driving rod (44) via a threaded pair, and a temperature sensor fixed on the slider.

8. The temperature calibration device according to claim 7, characterized in that: The driving mechanism (4) further comprises a guide rod (45) connected to the lower end of the driving arm (42) in parallel with the driving rod (44).

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