Automated analyzer

Abstract

The purpose of the present invention is to provide an automatic analyzer provided with a cold storage that suppresses external heat and moisture from entering from a container inlet / outlet without providing a fan as a heat source in a cold storage chamber. To this end, this automatic analysis device is provided with a cold storage that cools a liquid, the cold storage comprising: a cold storage chamber that holds the liquid; and a cooling device that generates cooling air and supplies the cooling air to the cold insulation chamber, the cold insulation chamber being provided with: a rotatable disk that supports a container that accommodates a liquid; a sheath that accommodates the tray; and a cover which covers the upper part of the sheath, the cover being provided with: a container inlet / outlet through which the container is taken and placed; and a flow path for generating an air flow traversing the lower side of the container inlet / outlet.

Description

Technical Field

[0001] The invention relates to an automatic analyzing device. Background Art

[0002] In an automatic analyzer, generally, a cold storage is provided for keeping a reagent container for storing a reagent cold, and an opening (container entrance and exit) for taking and placing the reagent container is formed on the lid of the cold storage. If high-temperature and humid external air flows into the cold storage from the opening, condensation may occur in the cold storage, so a technology for suppressing the inflow of external air is considered. For example, in patent document 1, it is described that "an air curtain device for generating an air curtain that can block an air layer of external air and cold air in the storage when a switch door is opened is provided at an opening for taking and placing a reagent on a reagent lid of a reagent cold storage" (abstract).

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2009-139269 Summary of the invention

[0006] Problems to be solved by the invention

[0007] However, in the cold storage described in Patent Document 1, there is a possibility that the air curtain device itself generates heat. In this case, there is a problem that the temperature in the cold storage increases and the temperature distribution in the cold storage becomes non-uniform.

[0008] An object of the present invention is to provide an automatic analyzer including a cold storage chamber, which suppresses the intrusion of external heat and moisture from a container inlet and outlet without providing a fan as a heat source in the cold storage chamber.

[0009] Means for solving problems

[0010] A representative means for solving the above-mentioned problems is an automatic analyzing device, which is equipped with a cold storage for keeping liquid cold, the cold storage having: a cold storage chamber that holds the liquid; and a cooling device that generates cooling air and supplies it to the cold storage chamber, the cold storage chamber having: a plate that supports a container for storing the liquid and is capable of rotating; a cover that stores the plate; and a cover that covers the top of the cover, and the cover is formed with: a container entrance and exit that is used to take and place the container; and a flow path that generates an air flow that crosses below the container entrance and exit.

[0011] Furthermore, a representative means is an automatic analyzing device, which has a cold storage for keeping liquid cold, characterized in that the cold storage has: a cold storage chamber that holds the liquid; and a cooling device that generates cooling air and supplies it to the cold storage chamber, the cold storage chamber has: a plate that supports a container for storing the liquid and is capable of rotating; a cover that stores the plate; and a cover that covers the top of the cover, a container entrance and exit for taking and placing the container is formed in the cover, and a fan that generates an air flow that crosses above the container entrance and exit is provided on the upper surface of the cover.

[0012] Effects of the Invention

[0013] According to the present invention, an automatic analyzer can be provided, which has a cold storage, and does not provide a fan as a heat source in the cold storage room, but suppresses the intrusion of external heat and moisture from the container inlet and outlet. Other issues, structures and effects than those described above will be clarified by the following description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a diagram showing the overall structure of a cold storage device of the automatic analyzer according to the first embodiment.

[0015] Figure 2 This is an exploded view of the cold room.

[0016] Figure 3 This is a cross-sectional view cut along a plane including the central axis of the cold storage chamber and the container inlet and outlet.

[0017] Figure 4 Yes means Figure 3 A top view showing the positional relationship between the AA section and the container inlet and outlet.

[0018] Figure 5 It is simplified in the central axis containing the cold room and Figure 3 The diagram shows the cross-sections cut by different planes and the air flow in the cold storage room.

[0019] Figure 6 yes Figure 3 BB section view in.

[0020] Figure 7 This is a three-dimensional view of the upper part of the socket and the cover viewed from obliquely above.

[0021] Figure 8 Viewed from the back (viewing angle A) Figure 7 Stereoscopic diagram.

[0022] Fig. 9 This is an enlarged view of the vicinity of the flow path of the cover of the automatic analyzer of Example 2.

[0023] Fig.10This is a horizontal cross-sectional view of the cover of the automatic analyzer of Example 3.

[0024] Fig.11 is equivalent to Example 4 Figure 6 sectional view of .

[0025] Fig.12 is equivalent to Example 5 Figure 6 sectional view of .

[0026] Fig.13 is equivalent to Example 6 Figure 6 sectional view of .

[0027] Fig.14 is equivalent to Example 7 Figure 6 sectional view of .

[0028] Fig.15 is equivalent to Example 8 Figure 6 sectional view of .

[0029] Fig.16 is equivalent to Example 9 Figure 6 sectional view of .

[0030] Fig.17 is equivalent to Example 10 Figure 6 sectional view of .

[0031] Fig.18 : This is a graph showing the relationship between the flow velocity ratio V2 / V1 and the flow rate of air flowing into the cooling room. DETAILED DESCRIPTION

[0032] Hereinafter, an embodiment of the present invention will be described using the drawings. In addition, although the present embodiment includes a plurality of examples, the same reference numerals are given to common structures and description thereof will be omitted.

[0033] The automatic analyzer is provided with a sample disk, a sample dispensing mechanism, a reagent dispensing mechanism, a thermostatic bath, a photometer, etc., which are not shown in the figure, in addition to the cold storage 100. In order to prevent the reagent from being denatured due to the surrounding environment, the temperature inside the cold storage 100 is controlled to be low temperature. The sample disk supports a plurality of sample containers for storing samples on its circumference and can rotate. In addition, when a specific sample container is moved to a sample suction position by the rotation of the sample disk, the sample dispensing mechanism (sample dispensing probe) rises and moves horizontally to a specified position after descending and sucking the sample from the sample container, and descends again to discharge the sample attracted to the reaction container.

[0034] On the other hand, a reagent disk is disposed inside the cold storage 100, which supports a plurality of reagent containers (tubes 27) radially and can be rotated by a driving unit such as a motor. The reagent dispensing mechanism (reagent dispensing probe) descends after horizontally moving to the reagent suction position, inserts the reagent container through the suction hole (not shown) formed on the upper surface of the cover 11 of the cold storage 100, and attracts the reagent. Furthermore, after rising, the reagent dispensing mechanism moves horizontally to a specified position, descends again, and discharges the reagent attracted to the reaction container. The reaction container to which the sample and the reagent are added promotes a chemical reaction in a thermostatic bath controlled to a certain temperature, and the reaction process is measured using a photometer, thereby analyzing the sample.

[0035] Here, the cold storage 100 has a cold storage room 10 for holding a reagent container and a cooling device 50 for generating cooling air and supplying it to the cold storage room 10. In addition, a container inlet and outlet 16 for taking in and putting in the reagent container is formed on a cover 11 provided in the cold storage room 10. The cover 11 of this embodiment has a structure for generating an air curtain in order to suppress the inflow of outside air from the container inlet and outlet 16. However, in this embodiment, a structure for generating an air curtain without providing a fan as a heat generating source in the cold storage room 10 is adopted, so that the temperature rise and temperature unevenness in the cold storage room 10 can be suppressed.

[0036] In Examples 1 to 4, a structure for generating an air curtain without using a fan, that is, a flow path 23 for generating an air flow that crosses below the container inlet and outlet 16 is formed on the cover 11 of the cold storage chamber 10. On the other hand, in Examples 5 to 10, a mechanism for generating an air curtain, that is, an external fan 40 for generating an air flow that crosses above the container inlet and outlet 16 is provided on the outer side (upper side) of the cover 11 of the cold storage chamber 10. Hereinafter, each embodiment will be described in detail.

[0037] Example 1

[0038] use Figures 1 to 8 The automatic analyzer of Example 1 is described. Figure 1 1 is a diagram showing the overall structure of a cold storage of the automatic analyzer of Example 1. The cold storage 100 is mainly composed of a cold storage chamber 10 for cold-keeping and storing reagents, and a cooling device 50 for supplying cooling air to the cold storage chamber 10. The cooling device 50 is, for example, a device using a refrigeration cycle or a device using a Peltier element.

[0039] Figure 2 The cold storage chamber 10 is mainly composed of a cover 15, a socket 14, a reagent disk (lower disk 13, upper disk 12), and a cover 11. The cover 15 and the socket 14 store the reagent disk.

[0040] Socket 14 is configured in the jacket 15 to rectify the air in the jacket 15, and is formed with an air inlet 17 on its peripheral side. Lower plate 13 transmits the power of the driving unit via rotating shaft 19, and can rotate with upper plate 12. In addition, the reagent disc of the present embodiment is constituted by combining upper plate 12 and lower plate 13, but can also be constituted in one piece. Lid 11 covers the top of jacket 15, and is formed with a container entrance and exit for taking and placing pipe 27 between the inside and outside of cold storage chamber 10. Jacket 15 and lid 11 are preferably formed by a heat-insulating material with little thermal conductivity. On the other hand, upper plate 12, lower plate 13 and socket 14 are formed by resins such as polypropylene, polystyrene, polyphenylene sulfide and polyester.

[0041] Next, use Figure 1 to Figure 6 The air flow will be described. Figure 3 This is a cross-sectional view taken along a plane including the central axis of the cold storage room and the container entrance and exit. Figure 4 Yes means Figure 3 A top view of the positional relationship between the AA section and the container inlet and outlet, Figure 5 It is simplified in the central axis containing the cold room and Figure 3 The diagram shows the cross-sections cut by different planes and the air flow in the cold storage room.

[0042] The air cooled by the cooling device 50 is flowed by a fan (not shown) constituting a part of the cooling device 50. Figure 1 As shown by arrow 31, it flows into the cold storage chamber 10. Figure 4 As shown, the air supplied from the cooling device 50 is sucked into the cold storage chamber 10 through the cold storage chamber inlet 21 formed at the lower portion of the jacket 15. In addition to the cold storage chamber inlet 21, a cold storage chamber outlet 22 is formed at the lower portion of the jacket 15 for collecting the air that circulates in the cold storage chamber 10 and contributes to the cooling of the reagent to the cooling device 50.

[0043] The air flowing into the cold storage chamber 10 flows along the outer diameter side of the partition 26. Figure 4 Here, the partition 26 is formed to protrude upward from the bottom surface of the jacket 15, and divides the space on the outer diameter side where the cold storage chamber inlet 21 is provided and the space on the inner diameter side where the cold storage chamber outlet 22 is provided. The air flows in the circumferential direction while Figure 5 As shown by arrow 34, the air flows into the space inside the socket 14, that is, the space where the reagent disk and the tube 27 exist, through the air inlet 17 formed on the outer peripheral side of the socket 14. Figure 5 As shown by arrow 35, the air that has cooled the tube 27 is sent to the space outside (lower side) of the socket 14 and on the inner diameter side of the partition 26 through the air outlet 18 formed on the inner peripheral side of the socket 14. Figure 4Flows counterclockwise as shown by arrow 35 and flows out of the cold storage chamber outlet 22 to the outside of the cold storage chamber 10, such as Figure 1 The liquid is recovered to the cooling device 50 as shown by arrow 32 .

[0044] In addition, the air flow in the cold storage chamber 10 is not limited to the aforementioned flow. For example, when the cold storage chamber inlet 21 is provided in the space on the inner diameter side and the cold storage chamber outlet 22 is provided in the space on the outer diameter side, the air flow in the cold storage chamber 10 is clockwise. In this case, the air flow inlet 17 is formed on the inner peripheral side of the socket 14, and the air flow outlet 18 is formed on the outer peripheral side of the socket 14.

[0045] The air flow in the cold storage room 10 described above is the main flow generated by the fan in the cooling device 50, but in this embodiment, a part of the main flow is branched through the flow path 23 of the cold storage room 10 to generate an air curtain. Figure 6 As shown, the flow path 23 of the present embodiment takes in a part of the air in the cold-keeping chamber 10 and blows it out in the horizontal direction toward the bottom of the container inlet and outlet 16 . Figure 6 yes Figure 3 BB section view in.

[0046] The inlet 24 of the flow path 23 is located on the outer diameter side of the container inlet and outlet 16, and is formed in the portion of the cover 11 facing the socket 14. Specifically, the through hole formed in the upper portion of the socket 14 is connected to the opening formed in the lower surface of the cover 11, so that air is taken into the flow path 23. That is, the inlet 24 is formed on the outer diameter side of the cover 11, so that the air with a particularly strong flow (high flow velocity) in the mainstream flowing in the cold storage chamber 10 is taken into the flow path 23.

[0047] Next, use Figure 7 as well as Figure 8 The structure of the cover will be described in detail. Figure 7 This is a three-dimensional view of the upper part of the socket and the cover viewed from above. Figure 8 Viewed from the back (viewing angle A) Figure 7 In addition, the arrow 37 in each figure indicates the state of air flowing from the inlet 24 through the flow path 23 to the container outlet 16.

[0048] As mentioned above, when the main flow of air in the cold storage room 10 is counterclockwise, if the flow path 23 where the main flow branches flows is also close to the direction of the main flow, it is considered that a strong air curtain can be generated. Therefore, it is preferred that the inlet 24 of the flow path 23 is located at a position closer to the upstream side of the main flow than the container outlet 16.

[0049] The container inlet 16 has a shape of a long hole extending from the inner diameter side to the outer diameter side. In addition, the flow path 23 is formed perpendicular to the length direction of the long hole of the container inlet 16. As a result, the air flow blown out from the flow path 23 is also perpendicular to the length direction of the container inlet 16, and the crossing distance is shortened compared to the case of obliquely crossing the container inlet 16, so it is difficult for external air to enter from above the container inlet 16.

[0050] However, the air flow taken into the flow path 23 from the inlet 24 tends to be directed toward the inner diameter side. Therefore, in order to maintain the air flow blown out from the flow path 23 perpendicular to the longitudinal direction of the container inlet and outlet 16, it is preferable to further provide a guide portion that intentionally guides the air toward the outer diameter side. Figure 8 As shown, a step 20 extending in a direction perpendicular to the longitudinal direction of the container outlet 16 is formed as a guide on the side of the lower surface of the cover 11 opposite to the flow path 23 across the container outlet 16 .

[0051] According to the present embodiment, since an air curtain is generated in which air flows so as to block the area below the container port 16 , it is possible to suppress the intrusion of heat and moisture from the outside through the container port 16 .

[0052] Furthermore, since it is not necessary to provide a heat source such as a fan for generating an air curtain in the cold room 10, it is possible to prevent a temperature rise in the cold room 10. As a result, it is possible to suppress not only condensation in the cold room 10 but also a temperature rise and temperature non-uniformity.

[0053] Example 2

[0054] use Fig. 9 The automatic analyzer of Example 2 is described. Fig. 9 This is an enlarged view of the flow path of the cover of the automatic analyzer of Example 2. In this embodiment, as a guide portion that intentionally guides air to the outer diameter side, a shape in which the height dimension 23W of the flow path 23 is larger on the outer diameter side than on the inner diameter side is adopted. As a result, the air flow that tends to be directed toward the inner diameter side is rectified, and the flow rate of the air crossing the container inlet and outlet 16 becomes uniform in the radial direction. That is, the pressure difference in the longitudinal direction of the container inlet and outlet 16 disappears, and the effect of preventing air from entering from the outside of the cold storage chamber 10 is improved.

[0055] Example 3

[0056] use Fig.10 The automatic analyzer of Example 3 is described. Fig.102 is a horizontal cross-sectional view of the cover of the automatic analyzer of Example 3. In this example, a baffle 28 that blocks the flow on the inner diameter side is formed in the middle of the flow path 23 as a guide portion that intentionally guides the air to the outer diameter side. As a result, the air flow that tends to flow toward the inner diameter side is rectified, and the flow rate of the air crossing the container inlet and outlet 16 becomes uniform in the radial direction. That is, the pressure difference in the longitudinal direction of the container inlet and outlet 16 disappears, and the effect of preventing air from entering from outside the cold storage chamber 10 is improved.

[0057] Example 4

[0058] use Fig.11 The automatic analyzer of Example 4 is described. Fig.11 is equivalent to Example 4 Figure 6 In this embodiment, an inclination 25 is formed on the lower surface of the cover 11 at a portion facing the flow path 23 across the container inlet and outlet 16, and the cover 11 becomes thinner as it approaches the container inlet and outlet 16.

[0059] According to this embodiment, the air blown out from the flow path 23 is unlikely to collide with the side wall 29 on the downstream side of the container inlet and outlet 16, so it is prevented from flowing out of the cold storage room 10 and is easily guided into the cold storage room 10. That is, the effect of preventing air from entering the cold storage room 10 from outside is improved.

[0060] Example 5

[0061] use Fig.12 The automatic analyzer of Example 5 is described. Fig.12 is equivalent to Example 5 Figure 6 This embodiment is different from the above-mentioned embodiments 1 to 4 in that an external fan 40 is provided on the upper surface of the cover 11 of the cold storage chamber 10 to generate an air flow above the container inlet and outlet 16. In addition, the external fan 40 is composed of, for example, an axial flow fan, a cross flow fan, a centrifugal fan, etc.

[0062] According to the present embodiment, since an air curtain is generated in which air flows so as to block the upper part of the container port 16 , it is possible to suppress the intrusion of heat and moisture from the outside through the container port 16 .

[0063] In addition, the external fan 40 of this embodiment is provided outside the cold storage chamber 10, so that the temperature in the cold storage chamber 10 can be prevented from rising due to the heat generated by the external fan 40 itself. As a result, not only can condensation in the cold storage chamber 10 be suppressed, but also temperature rise and temperature non-uniformity can be suppressed. In addition, in this embodiment, unlike the first to fourth embodiments, it is not necessary to form the flow path 23 on the cover 11, so the structure of the cover 11 and the socket 14 becomes simple.

[0064] Furthermore, in this embodiment, since the flow velocity near the lid upper surface 41 is increased by the external fan 40, the heat transfer rate between the lid upper surface 41 and the external air is increased, and the temperature of the side wall (the downstream side wall 29 and the upstream side wall 30) surrounding the container inlet and outlet 16 is increased. Due to this effect, the temperature of the side wall surrounding the container inlet and outlet 16 is higher than the temperature of the air near the container inlet and outlet 16, so that the condensation on the side wall surrounding the container inlet and outlet 16 can be further suppressed.

[0065] Example 6

[0066] use Fig.13 The automatic analyzer of Example 6 is described. Fig.13 is equivalent to Example 6 Figure 6 This embodiment is different from the fifth embodiment in that an inclination 42 is formed on the upper surface of the cover 11 on the downstream side of the air relative to the container inlet and outlet 16, and the cover 11 is formed to become thinner as it approaches the container inlet and outlet 16.

[0067] According to this embodiment, the air blown out from the external fan 40 is unlikely to collide with the side wall 29 on the downstream side of the container inlet and outlet 16, so it is prevented from flowing into the cold storage room 10 and is easily guided to the outside of the cold storage room 10. That is, the effect of preventing air from entering the cold storage room 10 from outside is improved.

[0068] Example 7

[0069] use Fig.14 The automatic analyzer of Example 7 is described. Fig.14 is equivalent to Example 7 Figure 6 The external fan 40 of this embodiment is different from the external fan 40 of the fifth embodiment, and blows out air in a direction inclined upward with respect to the horizontal direction.

[0070] According to this embodiment, the air blown out from the external fan 40 is also unlikely to collide with the side wall 29 on the downstream side of the container inlet and outlet 16, thereby preventing the air from flowing into the cold storage room 10 and being easily guided to the outside of the cold storage room 10. That is, the effect of preventing the air from entering the cold storage room 10 from the outside is improved.

[0071] Example 8

[0072] use Fig.15 The automatic analyzer of Example 8 is described. Fig.15 is equivalent to Example 8 Figure 6 This embodiment is different from the fifth embodiment in that another external fan 43 is provided on the upper surface of the cover 11 on the side opposite to the side where the external fan 40 is located across the container inlet and outlet 16. In addition, it is preferred that the flow rates of the external fan 40 and the other external fan 43 are the same.

[0073] According to the present embodiment, the expansion of the flow of the air 38 blown out from the external fan 40 is suppressed, and the air flows into the other external fan 43. As a result, the air blown out from the external fan 40 is less likely to collide with the side wall 29 on the downstream side of the container inlet and outlet 16, and is therefore prevented from flowing into the cold-keeping chamber 10, and is easily guided to the outside of the cold-keeping chamber 10. That is, the effect of preventing the intrusion of air from the outside of the cold-keeping chamber 10 is improved.

[0074] Example 9

[0075] use Fig.16 The automatic analyzer of Example 9 is described. Fig.16 is equivalent to Example 9 Figure 6 This embodiment is different from the embodiment 8 in that a clamp 44 is provided on the upstream side of the other external fan 43. The clamp 44 is configured so that the flow path cross-sectional area decreases from the downstream side to the upstream side.

[0076] According to the present embodiment, the air blown out from the external fan 40 contracts and flows into the clamp 44, so that the expansion of the flow can be suppressed. As a result, the air blown out from the external fan 40 is unlikely to collide with the side wall 29 on the downstream side of the container inlet and outlet 16, so that the air is prevented from flowing into the cold storage room 10 and is easily guided to the outside of the cold storage room 10. That is, the effect of preventing the intrusion of air from the outside of the cold storage room 10 is improved.

[0077] Example 10

[0078] use Fig.17 The automatic analyzer of Example 10 is described. Fig.17 is equivalent to Example 10 Figure 6 This embodiment is different from the embodiment 5 in that the distance between the lower surface of the container inlet 16 and the reagent disk (upper disk 12) is longer than the distance between the bottom surface of the cover 11 and the reagent disk (upper disk 12), thereby increasing the space below the container inlet 16. That is, in this embodiment, when the distance between the bottom surface of the cover 11 and the upper surface of the upper disk 12 is set to H1, and the distance between the lower surface of the container inlet 16 and the upper surface of the upper disk 12 is set to H2, H2>H1.

[0079] In the case of the lid 11 of this embodiment, the flow rate of air flowing from the outside of the cold storage chamber 10 through the container inlet and outlet 16 into the cold storage chamber 10 is Fig.18 Here, V2 is the flow rate of the air on the downstream side of the external fan 40, V1 is the flow rate of the air on the lower side of the container inlet and outlet 16 (on the cold storage chamber 10 side), and V0 is the flow rate of the air flowing near the tube 27 supported by the reagent disk. Fig.18As shown in FIG. 1 , when V2 / V1 is a predetermined value, the smaller V1 is, the smaller the inflow is. On the other hand, if V0 is small, the cooling capacity of the entire cold storage is reduced, and the temperature deviation in the cold storage room 10 is also large, so it is preferred that V0 is large. Therefore, it is preferred to increase V0 while decreasing V1.

[0080] According to the present embodiment, since only the space below the container inlet and outlet 16 is increased, V1 can be reduced while V0 is large, and the flow rate of air flowing into the cold storage chamber 10 through the container inlet and outlet 16 can be reduced. In addition, since the distance between the container inlet and outlet 16 and the upper plate 12 is increased, condensation generated on the upper plate 12, the lower plate 13, the tube 27, etc. is further suppressed.

[0081] The above-mentioned embodiments are examples described in detail to explain the present invention in an easy-to-understand manner, and are not necessarily limited to having all the described structures. In addition, a part of the structure of a certain embodiment can be replaced with or added to the structure of another embodiment.

[0082] Furthermore, the present invention is not limited to the aforementioned embodiments, and various modifications are possible. For example, although a suction hole smaller than the container inlet and outlet 16 is formed in the lid 11, a flow path for generating an air flow that crosses below the suction hole and a fan for generating an air flow that crosses above the suction hole may be provided. In addition, in the aforementioned embodiments 5 to 10, with respect to the air flow in the cold storage chamber 10 (see Figure 4 As shown in the arrow 33 , an external fan 40 is provided on the upstream side of the container inlet and outlet 16 , but an external fan 40 may also be provided on the downstream side of the container inlet and outlet 16 .

[0083] Furthermore, in the above-mentioned embodiments, the container inlet 16 is described using the figure without a cover, but a cover may be provided at the container inlet 16. In particular, in Embodiments 5 to 10, when a cover is provided at the container inlet 16, the following control may be performed: when the cover is opened, the external fan 40 or the like is operated, and when the cover is closed, the external fan 40 or the like is stopped. In addition, in the above-mentioned embodiments, the storage room for keeping the reagent cold is described as an example, but the cold storage room may also keep liquids other than the reagent (such as samples) cold.

[0084] Explanation of symbols

[0085] 10: cold storage room; 11: lid; 12: upper plate; 13: lower plate; 14: socket; 15: sheath; 16: container inlet and outlet; 17: air inlet; 18: air outlet; 19: rotating shaft; 20: step; 21: cold storage room inlet; 22: cold storage room outlet; 23: flow path; 24: inlet; 25: tilt; 26: partition; 27: pipe; 28: baffle; 29: side wall on the downstream side of the container inlet and outlet; 30: side wall on the upstream side of the container inlet and outlet; 40: external fan; 41: upper surface of the lid; 42: tilt; 43: another external fan; 44: clamp; 50: cooling device; 100: cold storage.

Claims

1. An automatic analysis device, comprising a cold storage for keeping liquid cold, characterized in that: The cold storage comprises: a cold storage chamber for holding the liquid; and a cooling device for generating cooling air and supplying the cooling air to the cold storage chamber. The cold storage chamber includes: a tray that supports a container containing liquid and is rotatable; a jacket that stores the tray; and a cover that covers the upper side of the jacket. The lid is formed with: a container access port for taking in and placing the container; and a flow path that generates an air flow that crosses below the container access port.

2. The automatic analysis device according to claim 1, characterized in that The flow passage takes in a portion of the air in the cold-keeping chamber and blows the air in a horizontal direction downwardly of the container inlet and outlet.

3. The automatic analysis device according to claim 2, characterized in that: The cover has a guide portion that guides air toward the outer diameter side.

4. The automatic analysis device according to claim 3, characterized in that: The guide portion has a shape in which the height dimension of the flow path is larger on the outer diameter side than on the inner diameter side.

5. The automatic analysis device according to claim 3, characterized in that: The guide portion is a baffle formed in the middle of the flow path and blocking the flow on the inner diameter side.

6. The automatic analysis device according to claim 2, characterized in that: The container inlet and outlet has a shape of a long hole extending from the inner diameter side to the outer diameter side, The air guided to the flow path is blown out perpendicularly to the longitudinal direction of the long hole.

7. The automatic analysis device according to claim 2, characterized in that: The lower surface of the cover has an inclination at a portion facing the flow path across the container inlet and outlet, and the cover becomes thinner as it approaches the container inlet and outlet.

8. The automatic analysis device according to claim 2, characterized in that: The cold storage room further includes a socket, which is arranged in the jacket and rectifies the air in the jacket. The inlet of the flow path is located on the outer diameter side of the container inlet and outlet, and is formed in a portion facing the socket.

9. The automatic analysis device according to claim 8, characterized in that: The jacket is formed with: an inlet for taking in cooling air supplied from the cooling device; and an outlet for recovering the air that circulates in the cold storage chamber to cool the container to the cooling device, The socket is formed with: an air inlet for allowing cooling air taken into the jacket from the inlet to flow in; and an air outlet for allowing air to flow out to a space where the outlet is located, The main flow of cooling air taken in from the air inlet cools the container and reaches the air outlet. Air branched from the main flow of cooling air is taken into the flow path.

10. An automatic analysis device, comprising a cold storage for keeping liquid cold, characterized in that: The cold storage comprises: a cold storage chamber for holding the liquid; and a cooling device for generating cooling air and supplying the cooling air to the cold storage chamber. The cold storage chamber includes: a tray that supports a container containing liquid and is rotatable; a jacket that stores the tray; and a cover that covers the upper side of the jacket. The lid is provided with a container access opening for taking in and placing the container. A fan for generating an air flow that crosses above the container inlet and outlet is provided on the upper surface of the cover.

11. The automatic analysis device according to claim 10, characterized in that: An inclination is formed on the upper surface of the cover on the downstream side of the air relative to the container inlet and outlet, and the cover becomes thinner as it approaches the container inlet and outlet.

12. The automatic analysis device according to claim 10, characterized in that: The fan blows out air in a direction inclined upward with respect to a horizontal direction.

13. The automatic analysis device according to claim 10, characterized in that: A fan different from the fan is provided on the upper surface of the cover at a side opposite to the side where the fan is located across the container inlet and outlet.

14. The automatic analysis device according to claim 10, characterized in that: The distance between the lower surface of the container access opening and the tray is greater than the distance between the bottom surface of the cover and the tray.

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