A reagent refrigeration system for coagulation analyzers

Abstract

A reagent refrigeration system for a coagulation analyzer relates to the technical field of reagent refrigeration devices. The technical solution employed includes a semiconductor refrigerator, a refrigeration chamber, and a radiator. The refrigeration chamber sidewall is further provided with a scanning port, the scanning port being provided with a barcode scanner. An inner turntable and an outer turntable are rotatably provided within the refrigeration chamber, the outer turntable surrounding the inner turntable. The inner and outer turntables are provided with multiple reagent racks, each having multiple reagent positions, each having a scanning window. A scanning gap is provided between adjacent reagent racks on the outer turntable, and both the scanning window and the scanning gap extend radially along the inner turntable. The radiator includes a ventilation cavity, heat dissipation fins, an intake fan, and an exhaust fan. The present invention fully utilizes the space within the refrigeration chamber, reduces the volume of the refrigeration chamber, reduces the power and heat generation of the semiconductor refrigerator, forms a directional and concentrated airflow within the ventilation cavity, and improves heat dissipation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of detection reagent refrigeration devices, and in particular to a reagent refrigeration system applied to a coagulation analyzer. Background Art

[0002] In existing in vitro diagnostic equipment such as fully automatic coagulation analyzers, a refrigeration chamber is required to store the reagents in the instrument at low temperatures in order to ensure that the reagents do not deteriorate during use and to prevent the reagents from evaporating. However, the refrigeration chambers and refrigeration devices currently used still have some defects, resulting in low refrigeration efficiency of the refrigeration device, which easily causes the temperature of the refrigeration chamber to rise, accelerates the deterioration rate of the reaction reagents, increases the evaporation of the reaction reagents, and increases the cost of using the reagents. For example, the invention patent application with publication number CN113406347A discloses a blood sample analyzer, which includes a reagent refrigeration tray arranged on the main frame. However, the refrigeration tray only has reagent positions on the outer ring, with the middle part being empty to facilitate scanning reagent bottles. The volume of the refrigeration chamber is large, resulting in high power consumption and high heat generation of the refrigeration device. For another example, the refrigeration chamber often uses a semiconductor refrigerator. The semiconductor refrigerator achieves cooling by connecting the refrigeration chamber to the cooling surface of the refrigerator and connecting the heat generating surface of the refrigerator to a radiator for heat conduction. However, the heat dissipation performance of the radiator is high. If the heat dissipation efficiency of the radiator is not high, heat is easily transferred back to the refrigerator by the radiator, causing the refrigerator temperature to rise and reducing the cooling efficiency of the refrigeration device. Summary of the Invention

[0003] In order to solve the problems in the prior art that the refrigeration device has high power and low heat dissipation efficiency, resulting in low refrigeration efficiency and increased temperature in the refrigeration chamber, the present invention provides a reagent refrigeration system for a coagulation analyzer.

[0004] The present invention provides the following technical solution: a reagent refrigeration system for a coagulation analyzer, comprising a semiconductor refrigerator, a refrigeration chamber connected to the refrigeration surface of the semiconductor refrigerator, and a radiator connected to the heat-generating surface of the semiconductor refrigerator, the side wall of the refrigeration chamber is also provided with a scanning port, the scanning port is provided with a barcode scanner, an inner turntable and an outer turntable are rotatably provided in the refrigeration chamber, the outer turntable surrounds the inner turntable, the inner turntable and the outer turntable are provided with a plurality of reagent racks around a central axis, the reagent rack is provided with a plurality of reagent positions, a scanning window is provided on the side of the reagent position away from the central axis, a scanning gap is provided between two adjacent reagent racks on the outer turntable, the scanning window and the scanning gap both extend along the radial direction of the inner turntable; the radiator comprises a ventilation cavity, heat dissipation fins arranged in the ventilation cavity and connected to the heat-generating surface, an inlet fan arranged at one end of the ventilation cavity, and an exhaust fan arranged at the other end of the ventilation cavity.

[0005] Preferably, it also includes an inner turntable drive device and an outer turntable drive device; the inner turntable drive device includes a rotating shaft arranged at the center of the inner turntable and an inner driven wheel arranged on the rotating shaft; the outer turntable drive device includes a rotating support rotatably connected to the rotating shaft, an outer driven wheel support rotatably connected to the rotating support, an outer driven wheel circumferentially arranged outside the outer driven wheel support, and a connecting bracket connected between the outer turntable and the outer driven wheel; the inner driven wheel and the outer driven wheel are respectively connected to the driving motor.

[0006] Preferably, the inner driven wheel and the outer driven wheel are both connected to the drive motor via a synchronous belt transmission mechanism.

[0007] Preferably, the refrigeration system also includes an operating position detection device, which includes a sensor bracket, an inner turntable photoelectric sensor and an outer turntable photoelectric sensor arranged on the sensor bracket, the rotating shaft is provided with a photoelectric baffle corresponding to the inner turntable photoelectric sensor, and the outer driven wheel is provided with a photoelectric baffle corresponding to the outer turntable photoelectric sensor.

[0008] Preferably, the inner turntable and the outer turntable are both provided with a plurality of partitions extending in the radial direction of the inner turntable, and the plurality of partitions are symmetrical around the central axis of the inner turntable. At least two positioning posts are provided between two adjacent partitions of the inner turntable and between two adjacent partitions of the outer turntable. The reagent rack is provided with a positioning groove cooperating with the positioning post, and the scanning gap is a through groove provided on the partition.

[0009] Preferably, the reagent rack is provided with multiple groups of reagent positions, and the distance between each group of reagent positions and the central axis of the inner turntable is different.

[0010] Preferably, the refrigeration chamber is further provided with a refrigeration chamber cover, and the refrigeration chamber cover is provided with a reagent needle groove.

[0011] Preferably, the outer surfaces of the refrigeration bin and the refrigeration bin cover are both covered with a heat insulation layer.

[0012] Preferably, the reagent position is provided with a wall, and an inclination angle is set between the wall and the horizontal plane, and the inclination angle is less than 90°.

[0013] The beneficial effects of the present invention are: the inner turntable and the outer turntable rotate independently, and reagent racks are set on the inner turntable and the outer turntable, which fully utilizes the space in the refrigeration bin, reduces the volume of the refrigeration bin, reduces the power and heat generation of the semiconductor refrigerator, and is provided with a scanning gap on the outer turntable to ensure that the reagent bottles on the inner turntable can be scanned; the structure of the radiator is optimized, and a ventilation cavity, an inlet fan and an exhaust fan are provided to form a directional and concentrated airflow in the ventilation cavity to take away the heat emitted by the heat dissipating fins, thereby reducing the temperature of the heat generating surface and improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional schematic diagram of an embodiment of the present invention.

[0015] Figure 2 A cross-sectional view of an embodiment of the present invention.

[0016] Figure 3 This is a top view of an embodiment of a refrigeration bin in the present invention.

[0017] Figure 4 Schematic diagram of an embodiment of the inner and outer turntable driving device of the present invention.

[0018] Figure 5 Schematic diagram of an embodiment of a refrigeration compartment cover according to the present invention.

[0019] Figure markings: 10-refrigeration chamber, 11-inner turntable, 12-outer turntable, 13-reagent rack, 131-reagent position, 132-scanning window, 133-scanning gap, 134-wall, 14-partition, 15-positioning column, 16-refrigeration chamber cover, 161-reagent needle groove, 17-thermal insulation layer, 20-semiconductor refrigerator, 30-radiator, 31-ventilation cavity, 32-heat dissipation fins, 33-inlet fan, 34-exhaust fan, 40-barcode scanner, 41-scanning port, 51-rotating shaft, 52-inner driven wheel, 61-rotating support, 62-outer driven wheel support, 63-outer driven wheel, 64-connecting bracket, 70-drive motor, 80-operating position detection device, 81-sensor bracket, 82-inner turntable photoelectric sensor, 83-outer turntable photoelectric sensor, 84-photoelectric baffle. Implementation Method

[0020] The following is a more detailed description of the embodiments of the present invention with reference to the accompanying drawings and reference numerals, so that those skilled in the art can implement the invention after studying this specification. It should be understood that the specific embodiments described herein are only used to illustrate the invention and are not intended to limit the invention.

[0021] The present invention provides Figure 1-5The reagent refrigeration system shown is applied to a coagulation analyzer, comprising a semiconductor refrigerator 20, a refrigeration chamber 10 connected to the refrigeration surface of the semiconductor refrigerator 20, and a radiator 30 connected to the heat-generating surface of the semiconductor refrigerator 20. The semiconductor refrigerator 20 is a device that uses the thermoelectric effect of a semiconductor to generate cooling capacity. The temperature of its refrigeration surface is reduced and fits with the refrigeration chamber 10, thereby reducing the temperature of the refrigeration chamber. The temperature of its heat-generating surface is increased, and a radiator 30 is required to dissipate heat to avoid affecting the temperature of the refrigeration chamber 10. The side wall of the refrigeration chamber 20 is also provided with a scanning port 41, and the scanning port 41 is provided with a barcode scanner 40. The barcode scanner 40 is used to scan, record, and feedback the reagent information in the reagent bottle placed in each reagent position 131, as well as the position information of the reagent rack and the reagent position. Specifically, the barcode scanner 40 is arranged outside the refrigeration chamber 10 and detects the inside of the refrigeration chamber 10 through the scanning port 41.

[0022] An inner turntable 11 and an outer turntable 12 are rotatably disposed within the refrigeration chamber 10. The outer turntable 12 surrounds the inner turntable 11. A plurality of reagent racks 13 are disposed around a central axis of the inner and outer turntables 11, 12. The reagent racks 13 are provided with a plurality of reagent positions 131, thereby increasing the number of reagent positions per unit area within the refrigeration chamber and fully utilizing the internal space of the refrigeration chamber 10. Compared with the prior art, the refrigeration chamber of the present invention requires less space for the same number of reagent positions, thereby reducing the power consumption of the semiconductor refrigerator 20 and reducing its heat generation.

[0023] At the same time, to enable the scanner 40 to scan the reagent information and position information on the inner turntable 11, a scanning window 132 is provided on the side of the reagent position 131 away from the central axis, and a scanning gap 133 is provided between two adjacent reagent racks 13 on the outer turntable 12. Both the scanning window 132 and the scanning gap 133 extend radially along the inner turntable 11. A reagent bottle with a reagent identification label is placed in the reagent position 131, with its reagent identification label aligned with the scanning window 132. Position identification labels for the reagent rack and reagent position can be provided on the side of the reagent rack 13 away from the center of the inner turntable 11, to the left and right of the scanning window 132. The reagent and position identification labels can be encoded in a barcode, QR code, or other format. The reagent identification label contains the reagent information, and the position identification label contains the reagent rack and reagent position numbers to reflect the position information. Both the inner turntable 11 and the outer turntable 12 can rotate independently. Align the scanning gap 133 of the outer turntable 12 with the scanning port 41, rotate the inner turntable 11, and the barcode scanner 40 can scan the position identification mark on the outer wall of the inner turntable 11, and scan the reagent identification mark on the reagent bottle through the scanning window 132 to obtain relevant information.

[0024] The present invention also features a radiator with improved heat dissipation efficiency. The radiator 30 includes a ventilation cavity 31, heat dissipation fins 32 disposed within the cavity 31 and connected to the heat-generating surface, an inlet fan 33 disposed at one end of the cavity 31, and an exhaust fan 34 disposed at the other end of the cavity 31. The cavity 31 is enclosed by a support frame, a shroud, and a base plate disposed at the bottom of the refrigeration chamber 10. The inlet fan 33 and exhaust fan 34 are simultaneously activated, creating a directional, concentrated airflow within the cavity 31 that removes heat from the heat dissipation fins 32, thereby lowering the temperature of the heat-generating surface and improving heat dissipation efficiency. Combined with the reduced power and heat generation of the semiconductor refrigerator 20, this effectively maintains a low temperature within the refrigeration chamber 10.

[0025] Preferably, the reagent refrigeration system further includes an inner turntable drive device and an outer turntable drive device, which independently drive the inner turntable 11 and the outer turntable 12 to rotate. The inner turntable drive device includes a rotating shaft 51 disposed at the center of the inner turntable 11 and an inner driven pulley 52 disposed on the rotating shaft 51; the outer turntable drive device includes a rotating support 61 rotatably connected to the rotating shaft 51, an outer driven pulley support 62 rotatably connected to the rotating support 61, an outer driven pulley 63 circumferentially disposed outside the outer driven pulley support 62, and a connecting bracket 64 connected between the outer turntable 12 and the outer driven pulley 63; the inner driven pulley 52 and the outer driven pulley 63 are each transmission-connected to a drive motor 70. The inner driven pulley 52 and the outer driven pulley 63 are each transmission-connected to their respective drive motors 70 via a synchronous belt drive mechanism. The rotating support 61 and the rotating shaft 51 as well as the rotating support 61 and the outer driven wheel support 62 are all slidably connected via bearings. The rotating support 61 ensures that the outer driven wheel 63 and the inner driven wheel 52 rotate without affecting each other.

[0026] Preferably, the refrigeration system further includes an operating position detection device 80, comprising a sensor bracket 81, an inner turntable photoelectric sensor 82 and an outer turntable photoelectric sensor 83 mounted on the sensor bracket 81. The rotating shaft 51 is provided with a photoelectric baffle 84 corresponding to the inner turntable photoelectric sensor 82, and the outer driven pulley 63 is provided with a photoelectric baffle 84 corresponding to the outer turntable photoelectric sensor 83. The inner and outer turntable photoelectric sensors can be slot-type photoelectric sensors, and the operation of the inner and outer turntables is controlled by using the photoelectric baffle 84 to block the photoelectric sensors for reset determination.

[0027] Preferably, the inner turntable 11 and the outer turntable 12 are each provided with a plurality of partitions 14 extending in the radial direction of the inner turntable. The plurality of partitions 14 are symmetrically arranged around the central axis of the inner turntable. Two positioning posts 15 are provided between adjacent partitions 14 of the inner turntable 11 and between adjacent partitions 14 of the outer turntable 12. The reagent rack 13 is provided with a positioning groove that cooperates with the positioning posts 15. The scanning gap 133 is a through groove provided on the partition 14. The partitions 14 divide the inner and outer turntables into multiple areas, each of which can accommodate a test tube rack 13, and the position of the test tube rack 13 is fixed by two positioning posts. The reagent rack 13 is also provided with a handle, and the solvent bottle can be replaced by removing the reagent rack 13, which is convenient for operation.

[0028] Preferably, the reagent rack 13 is provided with multiple groups of reagent positions 131, and the distance between each group of reagent positions 131 and the central axis of the inner turntable 11 is different. Figure 3 As shown, the reagent rack 13 of the outer turntable 12 has five reagent positions, with positions 1311 and 1312 forming a first group and positions 1313-1315 forming a second group. The distance between the first group of reagent positions and the central axis of the inner turntable 11 is smaller than the distance between the second group of reagent positions and the central axis of the inner turntable 11. The first and second groups are spaced apart to save space. The inner turntable 11 has only one group of reagent positions.

[0029] Preferably, the refrigeration chamber 10 is further provided with a refrigeration chamber cover 16, which is provided with a reagent needle groove 161. The refrigeration chamber cover 16 covers the top of the refrigeration chamber 10 to reduce the influence of the external ambient temperature on the internal space and reserves a small amount of reagent needle groove 161 for the sample needle and reagent needle to pass through.

[0030] Preferably, the outer surfaces of the refrigeration chamber 10 and the refrigeration chamber cover 16 are covered with a heat insulation layer 17 to further reduce the influence of the internal space on the external ambient temperature, especially the influence of the high temperature area at the bottom.

[0031] Preferably, the reagent position 131 is provided with a leaning wall 134, and the leaning wall 134 is inclined at an angle to the horizontal plane, wherein the angle is less than 90 degrees. The bottom of the inner cavity of the reagent bottle is generally flat. When the reagent bottle is placed in the reagent position 131, the bottle body leans against the leaning wall 134 under the action of gravity, causing the bottle body to tilt. When the remaining reagent is small, the reagent is collected at a low point, making it easier for the sample needle and the reagent needle to draw the reagent in the bottle, reducing the remaining reagent in the bottle and improving the use rate of the reagent.

[0032] The above is a description of one or more embodiments of the present invention, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A reagent refrigeration system for a coagulation analyzer, comprising a semiconductor refrigerator (20), a refrigeration chamber (10) connected to a refrigeration surface of the semiconductor refrigerator (20), and a radiator (30) connected to a heat generating surface of the semiconductor refrigerator (20), wherein a scanning port (41) is provided on a side wall of the refrigeration chamber (10), and a barcode scanner (40) is provided on the scanning port (41), characterized in that: An inner turntable (11) and an outer turntable (12) are rotatably provided in the refrigeration chamber (10), the outer turntable (12) surrounds the inner turntable (11), a plurality of reagent racks (13) are provided around the central axis of the inner turntable (11) and the outer turntable (12), the reagent rack (13) is provided with a plurality of reagent positions (131), a scanning window (132) is provided on a side of the reagent position (131) away from the central axis, a scanning gap (133) is provided between two adjacent reagent racks (13) on the outer turntable (12), and the scanning window (132) and the scanning gap (133) both extend in the radial direction of the inner turntable (11); The radiator (30) comprises a ventilation cavity (31), a heat dissipation fin (32) disposed in the ventilation cavity (31) and connected to the heat generating surface, an intake fan (33) disposed at one end of the ventilation cavity (31), and an exhaust fan (34) disposed at the other end of the ventilation cavity (31); The reagent refrigeration system further comprises an inner turntable drive device and an outer turntable drive device; the inner turntable drive device comprises a rotating shaft (51) arranged at the center of the inner turntable (11) and an inner driven wheel (52) arranged on the rotating shaft (51); the outer turntable drive device comprises a rotating support (61) rotatably connected to the rotating shaft (51), an outer driven wheel support (62) rotatably connected to the rotating support (61), an outer driven wheel (63) circumferentially arranged outside the outer driven wheel support (62), and a connecting bracket (64) connected between the outer turntable (12) and the outer driven wheel (63); the inner driven wheel (52) and the outer driven wheel (63) are respectively connected to the drive motor (70) through a synchronous belt transmission mechanism; The reagent refrigeration system further includes an operating position detection device (80), which includes a sensor bracket (81), an inner turntable photoelectric sensor (82) and an outer turntable photoelectric sensor (83) arranged on the sensor bracket (81), the rotating shaft (51) is provided with a photoelectric baffle (84) corresponding to the inner turntable photoelectric sensor (82), and the outer driven wheel (63) is provided with a photoelectric baffle (84) corresponding to the outer turntable photoelectric sensor (83).

2. A reagent refrigeration system for a coagulation analyzer according to claim 1, characterized in that: The inner turntable (11) and the outer turntable (12) are both provided with a plurality of partitions (14) extending in the radial direction of the inner turntable, and the plurality of partitions (14) are symmetrical around the central axis of the inner turntable. At least two positioning posts (15) are provided between two adjacent partitions (14) of the inner turntable (11) and between two adjacent partitions (14) of the outer turntable (12). The reagent rack (13) is provided with a positioning groove cooperating with the positioning post (15), and the scanning gap (133) is a through groove provided on the partition (14).

3. The reagent refrigeration system for a coagulation analyzer according to claim 1, characterized in that: The reagent rack (13) is provided with a plurality of groups of reagent positions (131), and the distance between each group of reagent positions (131) and the central axis of the inner turntable (11) is different.

4. A reagent refrigeration system for a coagulation analyzer according to claim 1, characterized in that: The refrigeration chamber (10) is further provided with a refrigeration chamber cover (16), and the refrigeration chamber cover (16) is provided with a reagent needle groove (161).

5. A reagent refrigeration system for a coagulation analyzer according to claim 4, characterized in that: The outer surfaces of the refrigeration bin (10) and the refrigeration bin cover (16) are both covered with a heat insulation layer (17).

6. The reagent refrigeration system for a coagulation analyzer according to claim 1, characterized in that: The reagent position (131) is provided with a leaning wall (134), and an inclination angle is provided between the leaning wall (134) and a horizontal plane, and the inclination angle is less than 90°.

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