Refrigerating system for reagent bin of in-vitro diagnostic instrument

Abstract

The utility model discloses an in-vitro diagnostic instrument reagent bin refrigerating system which comprises a semiconductor cooler, the refrigerating end of the semiconductor cooler is fixedly attached to the lower surface of the bottom wall of an in-vitro diagnostic instrument reagent bin, and a radiator is attached to the upper surface of the bottom wall of the in-vitro diagnostic instrument reagent bin right opposite to the upper portion of the semiconductor cooler. A cold-end fan with a downward blowing opening is fixedly supported above the radiator through a bracket; a water inlet and a water outlet are formed in the semiconductor cooler located on the outer side of the in-vitro diagnostic instrument reagent bin and communicated through a circulating pipeline, and a liquid storage tank, a circulating pump and a heat dissipation assembly are sequentially arranged on the circulating pipeline from the liquid inlet end to the liquid outlet end. The utility model has the advantages that the heat exchange area is increased, the generated cooling capacity is more concentrated, and meanwhile, the cold air can be uniformly blown to the periphery, so that the balance of the temperature in the reagent bin is improved; in addition, efficient circulating heat exchange can be guaranteed, gas in circulating liquid is prevented from entering the circulating pump, and the stability of the whole refrigerating system is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of in-vitro diagnosis, especially to an in-vitro diagnosis instrument reagent bin refrigeration system capable of rapid and uniform refrigeration. BACKGROUND

[0002] In an in-vitro diagnosis instrument, a reagent bin is usually required to provide a low-temperature environment of 2-8℃, so as to ensure the stability of reagents contained therein and the reliability of detection results. At present, the refrigeration cooling methods include semiconductor refrigeration and compressor refrigeration. Although the existing common compressor refrigeration has high efficiency, the refrigeration system structure is complex, the volume is large, and the noise is loud, and it is usually required to cooperate with a double-layer reagent bin to provide a cooling water circulation channel, so that the use of the in-vitro diagnosis instrument is greatly limited. The existing common semiconductor refrigeration is mostly air-cooled, which has a simple structure, but the refrigeration module arranged at the bottom of the reagent bin needs to be designed with an air duct to dissipate heat from the hot end. The shape and position of the air duct are greatly limited by the layout of the instrument, resulting in low refrigeration efficiency, large power consumption of the refrigeration device, and poor uniformity of the temperature in the reagent bin and reliability of the whole system, which are the primary problems to be solved at present. SUMMARY

[0003] The utility model aims at the defects of the prior art, and provides an in-vitro diagnosis instrument reagent bin refrigeration system.

[0004] To achieve the above-mentioned purpose, the utility model can adopt the following technical solutions:

[0005] The in-vitro diagnosis instrument reagent bin refrigeration system comprises a semiconductor refrigerator, the refrigeration end of the semiconductor refrigerator is attached to the lower surface of the bottom wall of the reagent bin of the in-vitro diagnosis instrument, a radiator is attached to the upper surface of the bottom wall of the reagent bin above the semiconductor refrigerator, and a cold-end fan with a blowing port downward is fixed on the radiator through a support; the semiconductor refrigerator has a water inlet and a water outlet on the outside of the reagent bin of the in-vitro diagnosis instrument, the water inlet and the water outlet are connected through a circulation pipeline, and a liquid storage tank, a circulating pump and a heat dissipation assembly are sequentially arranged on the circulation pipeline from the liquid inlet end to the liquid outlet end.

[0006] Further, the liquid storage tank is a closed tank body with an exhaust port at the top, a liquid inlet is arranged at the side wall near the top of the liquid storage tank, and a liquid outlet is arranged at the center of the bottom wall of the liquid storage tank. The liquid storage tank is connected to the circulation pipeline through the liquid inlet and the liquid outlet, which is beneficial to prevent gas in the circulating liquid from entering the circulating pump and improve the reliability of the circulating pump. In addition, a liquid adding port is connected to the circulation pipeline between the liquid inlet and the water outlet through a three-way joint, so that the circulating liquid can be supplemented through the liquid adding port.

[0007] Further, the heat dissipation assembly comprises a micro-channel radiator communicated with the circulating pipeline, and a blower arranged on one side of the micro-channel radiator, and a suction channel is arranged on the blower, the micro-channel radiator can increase the heat dissipation area, and the blower can help to quickly dissipate heat.

[0008] The utility model discloses the advantage is in line with the heat dissipation device on the refrigeration end of semiconductor refrigerator, can increase the heat exchange area, make the cold quantity produced more concentrated, cooperate the cold end fan of the support in the heat dissipation device upper side simultaneously, can make the cold air evenly blow open to all directions, be favorable to improve the temperature balance of reagent bin, in addition, the liquid storage tank, circulating pump and heat dissipation assembly of the circulation pipeline arrangement, can also guarantee the high efficiency circulating heat exchange of semiconductor refrigerator, prevent the gas in circulating liquid from entering circulating pump, reduce circulating pump cavitation, improve the reliability of circulating pump, and further improve the stability of whole refrigeration system. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is the structural schematic diagram of the utility model.

[0010] Figure 2 It is Figure 1 It is the axial side view of the reagent bin of the in-vitro diagnostic instrument.

[0011] Figure 3 It is Figure 1 It is the arrangement schematic diagram of the semiconductor refrigerator. DETAILED DESCRIPTION

[0012] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0013] It should be noted that all directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), if the specific posture changes, the directionality indications also change accordingly.

[0014] As Figures 1-3The utility model discloses a reagent warehouse refrigerating system of in-vitro diagnostic instrument, including the semiconductor refrigerator 1 of integral design, this semiconductor refrigerator 1 is fixed through screw in the bottom wall lower surface center of reagent warehouse 100 of in-vitro diagnostic instrument, and its refrigeration end is attached on the bottom wall lower surface of reagent warehouse 100 of in-vitro diagnostic instrument, of course, also can be uniformly distributed multiple semiconductor refrigerators 1 on the bottom wall lower surface of reagent warehouse 100 of in-vitro diagnostic instrument to enhance the refrigeration effect.

[0015] The in-vitro diagnostic instrument reagent warehouse 100 above semiconductor refrigerator 1 is provided with radiator 2, radiator 2 can adopt aluminium rectangular straight rib radiator or cylindrical needle rib radiator, also can adopt copper rectangular straight rib radiator or cylindrical needle rib radiator that can improve heat exchange efficiency, and is attached to the bottom wall upper surface center of reagent warehouse 100 of in-vitro diagnostic instrument, and is coated with heat-conducting silicone grease on the adhering surface, so that the cold energy generated by the refrigeration end of semiconductor refrigerator 1 can be more concentratedly transferred to radiator 2 by using heat conduction effect, at this time, a cold end fan 3 is fixed on the radiator 2 through a support, the blowing port of the cold end fan 3 faces downward and directly opposite the radiator 2, which can make the cold air transferred to the radiator 2 evenly blow open to the surrounding, and is beneficial to improve the temperature uniformity in the in-vitro diagnostic instrument reagent warehouse 100.

[0016] In addition, a water inlet 4 and a water outlet 5 are arranged on the semiconductor refrigerator 1 outside the in-vitro diagnostic instrument reagent warehouse 100, the water inlet 4 and the water outlet 5 are communicated through a circulating pipeline 6, a liquid storage tank 7, a circulating pump 8 and a heat dissipation assembly 9 are arranged on the circulating pipeline 6 in sequence from the liquid inlet end to the liquid outlet end, and the high-efficiency circulation of the semiconductor refrigerator 1 can be ensured by the liquid storage tank 7, the circulating pump 8 and the heat dissipation assembly 9 arranged on the circulating pipeline 6, thereby ensuring the refrigeration stability of the semiconductor refrigerator 1.

[0017] Specifically, the liquid storage tank 7 is a closed tank body, an exhaust port 10 with an exhaust valve is arranged on the top of the liquid storage tank 7 (a blocking plug can also be directly installed on the exhaust port 10 to realize opening and closing), a liquid inlet 11 is arranged on the side wall near the top of the liquid storage tank 7, and a liquid outlet 12 is arranged at the center of the bottom wall of the liquid storage tank 7, and the liquid storage tank 7 is communicated with the circulating pipeline 6 through the liquid inlet 11 and the liquid outlet 12. When the circulating liquid in the circulating pipeline 6 flows into the liquid storage tank 7 through the liquid inlet 11, the gas in the circulating liquid can be effectively prevented from entering the circulating pump 8 through the liquid outlet 12 arranged at the center of the bottom wall of the liquid storage tank 7, the cavitation of the circulating pump 8 is reduced, the reliability of the circulating pump 8 is improved, and the stability of the entire refrigeration system is improved.

[0018] The heat dissipation assembly 9 comprises a micro-channel radiator 9.1 communicated with the circulating pipeline 6, a blower 9.2 arranged on one side of the micro-channel radiator 9.1, and an exhaust channel 9.3 covering the blower 9.2; the micro-channel radiator 9.1 can increase the heat dissipation area, and the blower 9.2 can help the heat to be quickly dissipated, thereby improving the heat exchange efficiency of the whole circulating pipeline 6; of course, the micro-channel radiator 9.1 can also be a tube-fin radiator.

[0019] Further, for the convenience of supplementing liquid into the circulating pipeline 6, a liquid inlet 13 with an opening and closing valve can be communicated with the circulating pipeline 6 between the liquid inlet 11 of the liquid storage tank 7 and the water outlet 5 of the semiconductor refrigerator 1 through a three-way joint (the opening and closing of the liquid inlet 13 can also be realized by directly installing a blocking plug on the liquid inlet 13). When it is needed to supplement liquid into the circulating pipeline 6, the liquid inlet 13 can be connected with a liquid supply source and opened, so that the supplementing and filling of the circulating liquid are easily realized; at the same time of supplementing liquid, the exhaust port 10 needs to be opened, so that the liquid storage tank 7 is communicated with the atmosphere, thereby facilitating the flow of liquid.

[0020] In addition, a layer of thermal insulation cotton can be wrapped on the outer side wall and the outer bottom wall of the reagent warehouse 100 of the in-vitro diagnostic instrument, which can not only play a heat preservation role in the reagent warehouse 100 of the in-vitro diagnostic instrument, so that the temperature in the reagent warehouse 100 of the in-vitro diagnostic instrument can be maintained for a long time, but also can effectively prevent the bottom of the reagent warehouse 100 of the in-vitro diagnostic instrument from producing condensed water, thereby improving the stability of the semiconductor refrigerator 1 during refrigeration.

Claims

1. A refrigeration system for an in vitro diagnostic reagent compartment, characterized by: It includes a semiconductor refrigerator, the cooling end of which is fixed on the lower surface of the bottom wall of the in vitro diagnostic instrument reagent compartment, a radiator is fixed on the upper surface of the bottom wall of the in vitro diagnostic instrument reagent compartment directly above the semiconductor refrigerator, and a cold end fan with an air outlet facing downward is supported above the radiator by a bracket; The semiconductor refrigerator located outside the reagent compartment of the in vitro diagnostic instrument has a water inlet and a water outlet. The water inlet and the water outlet are connected by a circulation pipeline. The circulation pipeline is sequentially provided with a liquid storage tank, a circulation pump and a heat dissipation component from the liquid inlet end to the liquid outlet end.

2. The in vitro diagnostic reagent compartment refrigeration system according to claim 1, characterized in that: The liquid storage tank is a closed box with an exhaust port on the top. A liquid inlet is provided on the side wall of the liquid storage tank near the top, and a liquid outlet is provided at the center of the bottom wall of the liquid storage tank. The liquid storage tank is connected to the circulation pipeline through the liquid inlet and the liquid outlet.

3. The in vitro diagnostic reagent compartment refrigeration system according to claim 2, characterized in that: A liquid adding port is connected to the circulation pipeline between the liquid inlet and the water outlet through a three-way joint.

4. The in vitro diagnostic reagent compartment refrigeration system according to claim 1, characterized in that: The heat dissipation component includes a microchannel radiator connected to the circulation pipeline, and a hair dryer attached to one side of the microchannel radiator. An exhaust channel is provided on the upper cover of the hair dryer.

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