Medical refrigerated cabinet

Abstract

The utility model belongs to the technical field of medical refrigerated cabinets, and relates to a medical refrigerated cabinet which comprises a cabinet body and an air duct assembly. The air duct assembly comprises an air outlet plate, an air duct baffle and an air inlet plate, an air duct is formed among the air duct baffle, the air inlet plate and the rear cavity wall, and the evaporator is clamped in the air duct; an air inlet is formed in the air inlet plate; an upper blocking wall and a lower blocking wall which are folded forwards are arranged on the upper side and the lower side of the air duct baffle; the air outlet plate is connected between the upper and lower baffle walls; diffusion cavities are formed among the air outlet plate, the air duct baffle and the left and right side walls of the refrigeration cavity; the centrifugal fan is arranged in the diffusion cavity, and the air inlet end of the centrifugal fan right faces the air inducing opening. A first air outlet is formed in the upper part of the air outlet plate, a second air outlet is formed in the lower part, and a third air outlet is formed in the lower baffle wall. The medical refrigerated cabinet ensures that the temperature in the cabinet meets the industrial standard requirement, improves the uniformity and fluctuation of the temperature in the cabinet, and increases the effective storage volume of the medical refrigerated cabinet.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical refrigerators, and in particular relates to a medical refrigerator. Background Art

[0002] Medical refrigerators are professional refrigerators used to store medicines, vaccines, important biological and chemical reagents and other medical supplies. To ensure the quality of medical supplies, according to industry standards, the temperature inside the medical refrigerator should not exceed the temperature range of 2℃-8℃.

[0003] refer to Figure 1 As shown, currently common medical refrigerators generally have an air inlet 11a on the top air duct, an axial flow fan 30a is arranged at the air inlet 11a, and many air outlets 21a are evenly distributed on the rear air duct plate 20a; its air cooling circulation mode is that the high-temperature air in the refrigerator enters the air duct from the top air inlet 11a under the action of the axial flow fan 30a, flows through the evaporator 40a for cooling, and then flows out from the air outlet 21a; However, this common medical refrigerator has the following shortcomings:

[0004] 1) Since there is more cold air near the air outlet 21a and the air flowing out of the air outlet 21a is freshly refrigerated air, the temperature near the air outlet 21a will be relatively low, most likely lower than 2°C, which will affect the preservation quality of medical supplies near the air outlet 21a; some medical refrigerators will be equipped with heating wires at the air outlet 21a to preheat the cold air flowing out of the air outlet 21a to prevent the air flow from being too cold and affecting the preservation quality of medical supplies, but the relative humidity of the cold air after being cooled by the evaporator 40a may be relatively high, which may cause the risk of leakage of the heating wire, and the use of the heating wire will lead to an increase in energy consumption.

[0005] 2) Since there is only an air inlet 11a but no air outlet 21a on the top control panel 10a, high-temperature air enters the air duct from the top air inlet 11a and is cooled by the evaporator 40a before being transferred to the rear air duct. After the cooling capacity is lost from top to bottom, it flows out from each air outlet 21a in turn. Since the hot air in the cabinet rises and the cold air goes downward, the temperature of the space near the air inlet 11a and above the air inlet 11a is generally abnormally high, and is very likely to be higher than 8°C, which will affect the storage quality of medical supplies near the air inlet 11a.

[0006] 3) The temperature difference between the upper and lower positions in the cabinet is large and the temperature uniformity is poor, which will lead to poor refrigeration effect of medical supplies in the cabinet; most medical refrigerators will mark the upper load line and the lower load line in the cabinet, that is, the area outside the upper and lower load lines is a prohibited area. When such medical refrigerators are tested for temperature in the cabinet according to industry standards, the area outside the upper and lower load lines is not counted as a test space, which implies that the temperature outside the upper and lower load lines is likely to exceed the range of 2℃-8℃; the existence of the prohibited area will cause a waste of space in the cabinet, greatly reducing the effective storage volume of the medical refrigerator. In addition, the temperature fluctuation in the cabinet is large, which will cause the compressor to start and stop frequently, increasing energy consumption.

[0007] 4) The axial flow fan 30a at the air inlet 11a is usually cylindrical in appearance and is often large in size, so the space occupied by the top air duct is also relatively large; in this regard, some medical refrigerators often use an inclined method to fix the axial flow fan 30a on the top control panel 10a, but this has a limited effect on reducing the space occupied by the top air duct. The space occupied by the top air duct is still relatively large, resulting in a relative reduction in the volume inside the cabinet. Utility Model Content

[0008] In view of the deficiencies existing in the related art, the utility model provides a medical refrigerator, aiming to ensure that the temperature inside the medical refrigerator meets the requirements of industry standards, improve the temperature uniformity and fluctuation inside the cabinet, and increase the effective storage volume of the medical refrigerator.

[0009] The utility model provides a medical refrigerator, comprising:

[0010] A cabinet body having a refrigeration cavity with a front opening therein;

[0011] The air duct assembly is connected to the rear wall of the refrigeration chamber; the air duct assembly includes an air outlet plate, an air duct baffle plate connected up and down, and an air inlet plate; wherein,

[0012] The air duct baffle covers the upper section of the rear cavity wall, the air inlet plate covers the middle and lower section of the rear cavity wall, and an air duct is formed between the air duct baffle, the air inlet plate and the rear cavity wall; an air inlet is provided at the lower part of the air inlet plate to connect the air duct with the refrigerating cavity; an upper baffle wall and a lower baffle wall folded toward the refrigerating cavity are respectively provided on the upper and lower sides of the air duct baffle;

[0013] The air outlet plate is connected between the upper baffle wall and the lower baffle wall, and a diffusion cavity is formed between the air outlet plate, the air duct baffle plate and the left and right side walls of the refrigeration cavity; an air inlet is provided on the air duct baffle plate to connect the diffusion cavity with the air duct; a first air outlet is provided on the upper part of the air outlet plate, a second air outlet is provided on the lower part of the air outlet plate, and a third air outlet is provided on the lower baffle wall, and the diffusion cavity is connected with the refrigeration cavity through the first air outlet, the second air outlet and the third air outlet;

[0014] An evaporator is sandwiched in the air duct between the air inlet and the air outlet;

[0015] The centrifugal fan is arranged in the diffusion chamber, and the air inlet end of the centrifugal fan faces the air inlet.

[0016] In some of the embodiments, at least one vertically extending middle partition is connected between the upper baffle wall and the lower baffle wall, so that at least two diffusion chambers in the left and right directions are formed between the air outlet plate, the air duct baffle and the left and right side walls of the refrigeration chamber; an air inlet is provided on the air duct baffle corresponding to each diffusion chamber, so that each diffusion chamber is connected to the air duct; the number of centrifugal fans is at least two, and the centrifugal fans are arranged one by one in the diffusion chamber, and the air inlet end of each centrifugal fan is directly opposite to the air inlet of the diffusion chamber where it is located.

[0017] In some of the embodiments, a vertically extending middle partition is connected between the upper baffle wall and the lower baffle wall to form two left and right diffusion chambers between the air outlet plate, the air duct baffle and the left and right side walls of the refrigeration chamber; an air inlet is provided on the air duct baffle corresponding to each diffusion chamber to make each diffusion chamber connected to the air duct; there are two centrifugal fans, which are respectively arranged in two diffusion chambers, and the air inlet end of each centrifugal fan is directly facing the air inlet of the diffusion chamber in which it is located.

[0018] In some of the embodiments, the middle part of the air outlet plate is provided with two fifth air outlet holes which are symmetrical with respect to the middle partition and are arranged in an inverted eight shape. The fifth air outlet hole is located below and outside the centrifugal fan in the corresponding diffusion chamber, and the fifth air outlet hole is an oblique long hole; the middle part of the air outlet plate is respectively provided with a sixth air outlet hole near the left and right sides of the middle partition, and the two sixth air outlet holes are staggered up and down, and the sixth air outlet hole is a vertical long hole; the fifth air outlet hole is provided with a guide member, which is located in the diffusion chamber; the guide member includes a guide plate and two ribs connected to both ends of the guide plate, the guide plate is aligned with the lower edge of the fifth air outlet hole and is tilted downward toward the refrigeration chamber, and the two ribs are extended upward relative to the guide plate.

[0019] In some of the embodiments, the air outlet plate includes a first air outlet plate, a second air outlet plate and a third air outlet plate which are connected in sequence from top to bottom, and the second air outlet plate protrudes forward relative to the first air outlet plate and the third air outlet plate; the upper end of the first air outlet plate is connected to the upper baffle wall, and the lower end of the third air outlet plate is connected to the lower baffle wall; the first air outlet is arranged at the upper part of the first air outlet plate, the second air outlet is arranged at the lower part of the third air outlet plate, and the air inlet is opened on the air duct baffle corresponding to the second air outlet plate.

[0020] In some of the embodiments, a plurality of seventh air outlet holes are arranged at intervals on the upper end of the third air outlet plate at left and right sides of the middle partition, and the seventh air outlet hole is a horizontal long hole; an eighth air outlet hole is arranged on the second air outlet plate on the side close to the middle partition, and a ninth air outlet hole is arranged on the third air outlet plate on the other side close to the middle partition, the eighth air outlet hole is a vertical long hole, and the ninth air outlet hole is an oblique long hole; the seventh air outlet, the eighth air outlet and the ninth air outlet are all provided with guide members, and the guide members are located in the diffusion cavity; the guide member includes a guide plate and two retaining edges connected to both ends of the guide plate; the guide plate at the seventh air outlet is aligned with the lower edge of the seventh air outlet and is tilted downward toward the refrigerated cavity, and the two retaining edges are in an upward expansion state relative to the guide plate; the guide plates at the eighth air outlet and the ninth air outlet are respectively aligned with the edges of the air outlets on the side close to the middle partition and are tilted outward toward the refrigerated cavity, and the two baffles are respectively in an outward expansion state relative to the guide plates where they are located.

[0021] In some of the embodiments, the left and right sides of the air outlet plate are not in contact with the left and right side walls of the refrigerating chamber, so that a fourth air outlet is formed between the air outlet plate and the left and right side walls of the refrigerating chamber respectively; vertically extending air guide strips are respectively installed on the left and right sides of the air duct baffle; one side of the air guide strip is connected to the air duct baffle, and the other side extends obliquely toward the direction of the fourth air outlet; and guide walls folded toward the refrigerating chamber are respectively provided on the left and right sides of the air outlet plate.

[0022] In some of the embodiments, the duct baffle includes a first air guide plate and an air inlet plate which are interconnected up and down, and the air inlet plate protrudes backward relative to the first air guide plate; the air inlet is opened on the air inlet plate; the duct assembly includes a door-shaped duct frame, the front end face of the duct frame is connected to the air inlet plate and the air inlet plate, and the rear end face of the duct frame is connected to the rear cavity wall, so that an air duct is formed between the air inlet plate, the air inlet plate and the rear cavity wall; a accommodating cavity is formed between the first air guide plate and the rear cavity wall located above the duct frame, and the accommodating cavity is used to place a water box temperature measuring device.

[0023] In some of the embodiments, the air inlet includes multiple rows of air inlet grilles, each row of air inlet grilles includes multiple air inlet holes arranged at laterally intervals, and the air inlet holes are vertically long holes; the first air outlet includes at least one row of first air outlet grilles, the first air outlet grilles include multiple first air outlet holes arranged at laterally intervals, and the first air outlet holes are horizontally long holes; the second air outlet includes multiple rows of second air outlet grilles, each row of second air outlet grilles includes multiple second air outlet holes arranged at laterally intervals, and the second air outlet holes are horizontally long holes; the third air outlet includes multiple third air outlet holes arranged at laterally intervals, and the third air outlet holes are vertically long holes.

[0024] In some embodiments, the upper baffle wall extends in an upwardly inclined state toward the refrigerating chamber; and the lower baffle wall extends in a downwardly inclined state toward the refrigerating chamber.

[0025] Based on the above technical scheme, the medical refrigerator in the embodiment of the utility model changes the traditional top air intake to bottom air intake and the traditional top-mounted axial flow fan to a rear-mounted centrifugal fan through the air duct assembly arranged on the rear wall of the refrigeration chamber, thereby changing the air cooling circulation mode of the traditional medical refrigerator, and through the arrangement of air outlets in multiple different directions, the temperature inside the cabinet is made more stable and uniform, ensuring that the temperature inside the entire cabinet meets the requirements of industry standards, reducing the number of starts and stops of the compressor, reducing energy consumption, and at the same time, there is no need to set up a prohibited area, which significantly increases the effective storage volume in the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0027] Figure 1 It is a schematic diagram of the overall structure and air cooling circulation mode of the currently common medical refrigerator;

[0028] Figure 2 It is a schematic diagram of the overall structure and air-cooling circulation mode of the medical refrigerator in Embodiments 1 and 2 of the present utility model;

[0029] Figure 3 for Figure 2 A in the enlarged view;

[0030] Figure 4 It is a front view of the medical refrigerator of Embodiments 1 and 2 of the present utility model;

[0031] Figure 5 It is a front view of the air duct assembly in the medical refrigerator of the first and second embodiments of the utility model;

[0032] Figure 6 It is a schematic diagram of the structure of the medical refrigerator according to the first and second embodiments of the present utility model;

[0033] Figure 7 for Figure 6 The enlarged view of point B in the figure;

[0034] Figure 8 This is a schematic structural diagram of an air duct assembly in a medical refrigerator according to Embodiment 1 of the utility model;

[0035] Fig. 9 It is a cross-sectional view of the medical refrigerator at the centrifugal fan of the first embodiment of the utility model;

[0036] Fig.10 This is a schematic structural diagram of an air duct assembly in a medical refrigerator according to a second embodiment of the present utility model;

[0037] Fig.11 It is a cross-sectional view of the medical refrigerator at the centrifugal fan of the second embodiment of the utility model;

[0038] Fig.12 It is a schematic diagram of the overall structure and air-cooling circulation mode of the medical refrigerator according to the third embodiment of the present utility model;

[0039] Fig.13 for Fig.12 The enlarged view of point C in the figure;

[0040] Fig.14 This is a front view of a medical refrigerator according to Embodiment 3 of the present utility model;

[0041] Fig.15 This is a front view of the air duct assembly in the medical refrigerator of the third embodiment of the utility model;

[0042] Fig.16 This is a schematic structural diagram of a medical refrigerator according to Embodiment 3 of the present utility model;

[0043] Fig.17 for Fig.16 The enlarged view of point D in the figure;

[0044] Fig.18 This is a schematic structural diagram of an air duct assembly in a medical refrigerator according to Embodiment 3 of the present utility model;

[0045] Fig.19 It is a cross-sectional view of the medical refrigerator at the centrifugal fan of the third embodiment of the utility model;

[0046] Fig. 20 This is a schematic diagram of the back side of the air outlet plate in the medical refrigerator according to the third embodiment of the utility model;

[0047] Fig.21 It is a schematic diagram of the overall structure and air-cooling circulation mode of a medical refrigerator according to a fourth embodiment of the present utility model;

[0048] Fig. 22 for Fig.21 The enlarged view of point E in the figure;

[0049] Fig.23 This is a front view of a medical refrigerator according to a fourth embodiment of the present utility model;

[0050] Fig.24 This is a front view of an air duct assembly in a medical refrigerator according to a fourth embodiment of the present utility model;

[0051] Fig.25 This is a schematic structural diagram of a medical refrigerator according to a fourth embodiment of the present utility model;

[0052] Fig.26 for Fig.25 The enlarged view of F in the figure;

[0053] Fig. 27 This is a schematic structural diagram of an air duct assembly in a medical refrigerator according to a fourth embodiment of the utility model;

[0054] Fig.28 It is a cross-sectional view of the centrifugal fan of the medical refrigerator of the fourth embodiment of the utility model;

[0055] Fig.29 This is a schematic diagram of the back side of the air outlet plate in the medical refrigerator according to the fourth embodiment of the utility model;

[0056] Fig.30 It is a structural schematic diagram of the flow guide member on the air outlet plate of the medical refrigerator in the third and fourth embodiments of the utility model;

[0057] Fig.31 This is a schematic diagram of the layout of temperature test points inside a medical refrigerator.

[0058] Figure 1 Middle: 10a, top control panel; 11a, air inlet; 20a, rear air duct plate; 21a, air outlet; 30a, axial flow fan; 40a, evaporator.

[0059] Figure 2-Figure 30 Middle: 10, cabinet body; 11, cabinet door; 101, refrigeration chamber; 102, air duct; 103, diffusion chamber; 104, accommodation chamber; 20, air duct baffle; 21, upper baffle wall; 22, lower baffle wall; 23, air guide strip; 24, middle partition; 25, first air guide plate; 26, air guide plate; 27, second air guide plate; 201, air inlet; 202, third air outlet; 30, air inlet plate; 301, air inlet; 40, air outlet plate; 41, guide wall; 42, guide piece; 421, guide Plate; 422, retaining edge; 43, first air outlet plate; 44, second air outlet plate; 45, third air outlet plate; 401, first air outlet; 402, second air outlet; 403, fourth air outlet; 404, fifth air outlet; 405, sixth air outlet; 406, seventh air outlet; 407, eighth air outlet; 408, ninth air outlet; 50, air duct frame; 60, evaporator; 70, centrifugal fan; 80, layer plate; 81, bracket; 82, buckle; 90, water box temperature measuring device. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0061] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "up", "down", "top", "bottom", "inside", "outside", "left", "right", "front", "back", "vertical", "horizontal", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, that is, the orientation is expressed when the user faces the medical refrigerator, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0062] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features.

[0063] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] Embodiment 1:

[0065] refer to Figure 2-Figure 9 As shown, the utility model provides a medical refrigerator, which includes a cabinet 10, a cabinet door 11, an air duct assembly, an evaporator 60, a centrifugal fan 70, etc. The cabinet 10 has a front-opening refrigeration chamber 101 inside, and the cabinet door 11 is connected to the front opening to open or close the refrigeration chamber 101; the lower part of the cabinet 10 defines a refrigeration system area located below the refrigeration chamber 101, which is used to arrange a compressor, a condenser, etc., thereby separating the heat of the compressor room from the coldness of the refrigeration chamber 101, and reducing the mutual influence between the two; the upper part of the cabinet 10 defines an electric control system area located above the refrigeration chamber 101, which is used to arrange electronic components, thereby separating the electric control system area from the refrigeration chamber 101 and the refrigeration system area, and avoiding the moisture in the refrigeration chamber 101 and the heat in the refrigeration system area from the adverse effects on the electrical components. The air duct assembly is located inside the cabinet 10 and connected to the rear wall of the refrigeration chamber 101.

[0066] The air duct assembly includes an air inlet plate 30, an air duct baffle 20, and an air outlet plate 40, which are made of sheet metal parts and assembled. The air duct baffle 20 and the air inlet plate 30 are connected up and down; the air duct baffle 20 covers the upper section of the rear wall of the refrigerating chamber 101, and the air inlet plate 30 covers the middle and lower sections of the rear wall of the refrigerating chamber 101. An air duct 102 is formed between the air duct baffle 20, the air inlet plate 30 and the rear wall of the refrigerating chamber 101. An air inlet 301 is opened at the lower part of the air inlet plate 30, and the air duct 102 is communicated with the refrigerating chamber 101 through the air inlet 301. Upper and lower retaining walls 21 and 22 that are folded towards the refrigerating chamber 101 are respectively provided on the upper and lower sides of the air duct baffle 20, that is, the cross-section of the air duct baffle 20 is approximately in a U shape, and the front end of the air duct baffle 20 is an open end facing the refrigerating chamber 101.

[0067] The air outlet plate 40 is connected to the open end of the air duct baffle 20, and the air outlet plate 40 is connected between the upper retaining wall 21 and the lower retaining wall of the air duct baffle 20. A diffusion chamber 103 is formed between the air outlet plate 40, the air duct baffle 20 and the left and right side walls of the refrigerating chamber 101. An air guiding port 201 is opened on the rear wall of the air duct baffle 20, and the diffusion chamber 103 is communicated with the air duct 102 through the air guiding port 201. A first air outlet 401 is provided at the upper part of the air outlet plate 40, a second air outlet 402 is provided at the lower part of the air outlet plate 40, and a third air outlet 202 is provided on the lower retaining wall 22 of the air duct baffle 20. The diffusion chamber 103 is communicated with the refrigerating chamber 101 through the first air outlet 401, the second air outlet 402 and the third air outlet 202.

[0068] The evaporator 60 is clamped in the air duct 102 between the air inlet 301 and the air guiding port 201; the evaporator 60 is in a flat shape adapted to the shape of the air duct 102. The centrifugal fan 70 is arranged in the diffusion chamber 103, and the air inlet end of the centrifugal fan 70 faces the air guiding port 201; it can be understood that the air inlet end of the centrifugal fan 70 is in its axial direction and the air outlet end is in its radial direction, and the air outlets of the diffusion chamber 103 are located radially above and below the centrifugal fan 70. Therefore, the air inlet direction of the centrifugal fan 70 is perpendicular to the air outlet plate 40, the air outlet direction is parallel to the air outlet plate 40, and the air outlet direction of the centrifugal fan 70 is perpendicular to the air inlet direction at the air inlet 301. By setting the centrifugal fan 70, the flow direction of its intake air flow is changed and air is discharged in all directions of 360 degrees. In addition, the centrifugal fan 70 is in an overall flat spiral structure. Compared with the commonly used axial flow fan 30a, the space occupation ratio is greatly reduced. Therefore, the overall structural design of the air duct assembly can be made more compact, and further the storage volume in the cabinet can be increased.

[0069] The air cooling circulation mode of this embodiment is that the high-temperature air in the refrigeration chamber 101 is sucked into the air duct 102 (i.e., bottom air inlet) through the air inlet 301 at the lower part of the air inlet plate 30 under the action of the centrifugal fan 70, first flows through the evaporator 60 for heat exchange and cooling, and the cooled air flow enters the diffusion chamber 103 through the air inlet 201 and the centrifugal fan 70, and then enters the refrigeration chamber 101 through the first air outlet 401 at the upper part of the air outlet plate 40, the second air outlet 402 at the lower part of the air outlet plate 40, and the third air outlet 202 on the lower baffle wall 22 of the air duct baffle 20.

[0070] Further explanation, this embodiment adopts the bottom air intake method, which solves the problem that the temperature of the air inlet 11a may be higher than 8°C due to the natural rise of heat when the traditional top air intake is used. In this embodiment, the cooled airflow flows and buffers in the diffusion cavity 103 in a longer area under the action of the centrifugal fan 70, which can reduce the loss of wind pressure, increase the airflow velocity, and achieve simultaneous air discharge from each air outlet in different directions and make the airflow relatively gentle, thereby making the temperature in the entire cabinet more stable and uniform, thereby ensuring that the temperature in the cabinet meets the requirements of industry standards, and solves the problem that the cooled airflow in the prior art directly enters the refrigeration cavity 101 through the air outlet, which may cause the temperature near the air outlet 21a to be lower than 2°C, and effectively improves the uniformity and fluctuation of the temperature in the cabinet, improves the refrigeration effect of medical supplies in the cabinet, reduces the number of starts and stops of the compressor, and reduces energy consumption.

[0071] The above-mentioned schematic embodiment changes the traditional top air intake to bottom air intake and changes the traditional top-mounted axial flow fan 30a to a rear-mounted centrifugal fan 70 by means of an air duct assembly disposed on the rear wall of the refrigeration chamber 101, thereby changing the air cooling circulation mode of the traditional medical refrigerator. Furthermore, by setting air outlets in multiple different directions, the temperature inside the cabinet is made more stable and uniform, ensuring that the temperature inside the entire cabinet meets the requirements of industry standards. There is no need to set up a prohibited area, which significantly increases the effective storage volume in the cabinet and enhances the user's product experience. At the same time, it can effectively improve the uniformity and fluctuation of the temperature inside the cabinet, improve the refrigeration effect of medical supplies in the cabinet, reduce the number of starts and stops of the compressor, and reduce energy consumption.

[0072] refer to Figure 4 , Fig. 9 As shown, in some embodiments, the left and right sides of the air outlet plate 40 are not in contact with the left and right side walls of the refrigerating chamber 101, so that fourth air outlets 403 are respectively formed between the air outlet plate 40 and the left and right side walls of the refrigerating chamber 101. The diffusion chamber 103 is also connected to the refrigerating chamber 101 through the fourth air outlet 403, so that part of the cold energy in the diffusion chamber 103 can also flow into the refrigerating chamber 101 through the fourth air outlet 403, further improving the uniformity and fluctuation of the temperature in the cabinet.

[0073] refer to Figure 7-Figure 9As shown, in some embodiments, the left and right sides of the air duct baffle 20 are respectively provided with vertically extending air guide strips 23, and the vertical length of the air guide strips 23 is equivalent to the height of the air duct baffle 20; one side of the air guide strip 23 is connected to the air duct baffle 20, and the other side is obliquely extended toward the direction of the fourth air outlet 403; it can be understood that the connecting end of the air guide strip 23 and the air duct baffle 20 is arranged in contact with the plate surface of the air duct baffle 20; through the arrangement of the air guide strip 23, the airflow flowing from the diffusion cavity 103 to the fourth air outlet 403 is guided. The left and right sides of the air outlet plate 40 are respectively provided with guide walls 41 folded toward the refrigeration cavity 101, and the guide wall 41 and the air outlet plate 40 are arranged in an L shape; through the arrangement of the guide wall 41, the airflow flowing out of the fourth air outlet 403 is guided to blow farther, further improving the temperature uniformity and fluctuation in the cabinet.

[0074] refer to Figure 4 As shown, in some embodiments, the medical refrigerator further includes a plurality of layers 80 arranged in the refrigeration chamber 101 along the vertical interval. The left and right sides of each layer 80 are not in contact with the left and right side walls of the refrigeration chamber 101. Specifically, at least two vertical brackets 81 are convexly provided on the left and right side walls of the refrigeration chamber 101. The layer 80 is movably connected to the brackets 81 through a plurality of buckles 82. The position of the layer 80 can be adjusted up and down as needed. There is a gap between the left and right sides of the layer 80 and the left and right side walls of the refrigeration chamber 101, thereby mainly providing a smooth and fast flow channel for the cold air flowing out of the fourth air outlet 403, further improving the temperature uniformity and fluctuation in the cabinet and improving the refrigeration effect. The rear side of each layer plate 80 is not in contact with the air outlet plate 40 or the air inlet plate 30, that is, a gap is left between the rear side of the layer plate 80 and the air duct assembly, thereby facilitating the smooth flow of cold air flowing out of each air outlet, especially the third air outlet 202, in the refrigeration chamber 101, further improving the temperature uniformity and fluctuation in the cabinet and enhancing the refrigeration effect.

[0075] refer to Figure 3 , Figure 7-Figure 9As shown, in some embodiments, the air duct baffle 20 includes a first air guide plate 25 and an air induction plate 26 connected to each other from top to bottom, and the air induction plate 26 protrudes backward relative to the first air guide plate 25; thereby, the thickness of the diffusion cavity 103 at the first air guide plate 25 is smaller than the thickness at the air induction plate 26. The air induction port 201 is provided on the air induction plate 26, so the centrifugal fan 70 is located in the diffusion cavity 103 corresponding to the air induction plate 26; thereby, the airflow in the diffusion cavity 103 flowing to the first air outlet 401 is guided by the arrangement of the first air guide plate 25. An air duct 102 is formed between the air duct plate 26, the air inlet plate 30 and the rear cavity wall, that is, the first air guide plate 25 does not directly contact the air duct 102 area, thereby lowering the top height of the air duct 102 and reducing the waste of the air duct above the centrifugal fan 70, so that the airflow in the air duct 102 can fully and quickly enter the centrifugal fan 70 through the air duct port 201 on the air duct plate 26, thereby improving the airflow circulation efficiency.

[0076] Furthermore, the air duct assembly also includes a door-shaped air duct frame 50, including a top frame and two side frames; the entire front end surface of the air duct frame 50 is fitted and connected to the air guide plate 26 and the air inlet plate 30, and the entire rear end surface is fitted and connected to the rear cavity wall, and the top frame is connected to the air guide plate 26 and is located above the air inlet 201; thus, through the setting of the air duct frame 50, an air duct 102 is formed between the air guide plate 26, the air inlet plate 30 and the rear cavity wall, that is, the air duct 102 area is defined between the air duct assembly and the rear cavity wall. Further, a receiving cavity 104 is formed between the first air guide plate 52 and the rear cavity wall located above the air duct frame 50, and the receiving cavity 104 is used to place the water box temperature measuring device 90, etc., thereby achieving full utilization of space.

[0077] refer to Figure 4-Figure 6 , Figure 8 As shown, in some embodiments, the air inlet 301 includes multiple rows of air inlet grilles, each row of air inlet grilles includes multiple air inlet holes arranged at intervals in a horizontal direction, and the air inlet holes are vertically elongated holes, such as vertically elongated circular holes or vertically elongated strip holes; vertically elongated air inlet holes have advantages such as small air inlet resistance and beautiful appearance compared to dot-shaped circular holes. In some embodiments, the air inlet 301 is arranged within the range of 0 to 1 / 4 of the height from bottom to top of the refrigeration chamber 101; Figure 4 For this eight-layer medical refrigerator, the air inlet 301 is approximately arranged in the height range from the bottom of the refrigeration chamber 101 to the vicinity of the second layer plate 80 from the bottom to the top.

[0078] The first air outlet 401 includes at least one row of first air outlet grilles, the first air outlet grilles include a plurality of first air outlet holes arranged at intervals in a transverse direction, and the first air outlet holes are transverse long holes; the second air outlet 402 includes a plurality of rows of second air outlet grilles, each row of second air outlet grilles includes a plurality of second air outlet holes arranged at intervals in a transverse direction, and the second air outlet holes are transverse long holes; the transverse long holes can be transverse long round holes or transverse long strip holes, and the transverse long air outlet holes have the advantages of small wind resistance and beautiful appearance compared with the dot-shaped round holes, and the setting of the transverse long air outlet holes is conducive to stable air discharge and the transverse wind covers a wider space of the refrigeration chamber 101. Further, the matching setting of a plurality of vertical long air inlet holes and a plurality of transverse long air outlet holes is conducive to the comprehensive distribution of cold air in the cabinet. The third air outlet 202 includes a plurality of third air outlet holes arranged at intervals in a transverse direction, and the third air outlet holes are set as vertical long holes. The setting of the vertical long third air outlet holes can better correspond to the gap between the rear side of the layer plate 80 and the air duct assembly, which is conducive to improving the temperature uniformity and fluctuation in the cabinet. In some embodiments, the second air outlet 402 is arranged within the range of 1 / 4 to 1 / 3 of the height from top to bottom of the refrigerating chamber 101; Figure 4 For this eight-layer medical refrigerator, the second air outlet 402 is approximately below the second layer plate 80 from top to bottom. It should be noted that the height position of the second air outlet 402 should be below the layer plate 80, rather than near the upper edge of the layer plate 80, to prevent cold air from blowing directly on the medical supplies stored on the layer shelf, affecting the refrigeration effect. Therefore, the height position of the layer shelf near the second air outlet 402 is usually fixed and cannot be adjusted, while the layers of the other layers can be flexibly adjusted as needed.

[0079] refer to Figure 3 As shown, in some embodiments, the upper baffle 21 is connected to the upper side of the first air guide plate 25, and extends upwardly in an inclined state toward the refrigerated chamber, so as to guide the airflow flowing from the diffusion chamber 103 to the first air outlet 401, reduce the turbulence phenomenon at the corner of the upper baffle 21, and avoid local accumulation of cold energy and waste. The lower baffle 22 is connected to the lower side of the air guide plate 26, and extends downwardly in an inclined state toward the refrigerated chamber 101, so as to guide the airflow flowing from the diffusion chamber 103 to the second air outlet 402 and the third air outlet 202, reduce the turbulence phenomenon at the corner of the lower baffle 22, and avoid local accumulation of cold energy and waste.

[0080] Embodiment 2:

[0081] In order to meet the use requirements of a larger-sized medical refrigerator and ensure its refrigeration effect, improvements are made on the basis of the medical refrigerator in Example 1. Figure 2-Figure 7 , Figure 10-11As shown, at least one vertically extending middle partition 24 is connected between the upper baffle 21 and the lower baffle 22, and the rear end of the middle partition 24 is connected to the air duct baffle 20, and the front end thereof is connected to the air outlet plate 40, so that at least two diffusion chambers 103 in the left and right directions are formed between the air outlet plate 40, the air duct baffle 20 and the left and right side walls of the refrigeration chamber 101. An air inlet 201 is provided on the air duct baffle 20 corresponding to each diffusion chamber 103, and each diffusion chamber 103 is connected to the air duct 102 through the air inlet 201. There are at least two centrifugal fans 70, and the centrifugal fans 70 are arranged in the diffusion chamber 103 one by one, and the air inlet end of each centrifugal fan 70 is directly opposite to the air inlet 201 of the diffusion chamber 103 where it is located.

[0082] Further explanation, when multiple centrifugal fans 70 are started, the high-temperature air in the refrigeration chamber 101 is sucked into the air duct 102 through the air inlet 301, and the airflow after being cooled by the evaporator 60 enters each diffusion chamber 103 through each air inlet 201 respectively. The centrifugal fan 70 in each diffusion chamber 103 converts the axial air intake into 360-degree air discharge in all directions, and then flows into the refrigeration chamber 101 through each air outlet; the setting of the middle partition 24 makes the airflow in each diffusion chamber 103 not interfere with each other. This exemplary embodiment can improve the refrigeration effect of the medical refrigerator through the matching setting of multiple diffusion chambers 103 and multiple centrifugal fans 70, thereby meeting the use needs of larger-sized medical refrigerators.

[0083] Embodiment three:

[0084] Based on the medical refrigerator of the second embodiment, the medical refrigerator of the third embodiment is modified. Figure 12-Figure 20 , Fig.30 As shown, a vertically extending middle partition 24 is connected between the upper baffle wall 21 and the lower baffle wall 22, so that two left and right diffusion chambers 103 are formed between the air outlet plate 40, the air duct baffle plate 20 and the left and right side walls of the refrigeration chamber 101; the number of centrifugal fans 70 is two, and the two centrifugal fans 70 are respectively arranged in the two diffusion chambers 103.

[0085] refer to Figure 14-16 , Fig. 20As shown, in some embodiments, two fifth air outlet holes 404 are provided in the middle portion of the air outlet plate 40, which are symmetrical with respect to the middle partition plate 24 and are arranged in an inverted eight shape. The fifth air outlet hole 404 is located below and outside the centrifugal fan 70 in the corresponding diffusion chamber 103. The fifth air outlet hole 404 is an oblique long hole, such as an obliquely arranged oblong hole or a long strip hole. It should be noted that the inclination direction of the fifth air outlet hole 404 is consistent with the air outlet direction of the centrifugal fan 70 at this location, thereby allowing part of the cold air in the two diffusion chambers 103 to flow into the refrigeration chamber 101 through the fifth air outlet hole 404, thereby improving the fluctuation and uniformity of the temperature in the cabinet. A sixth air outlet hole 405 is provided in the middle of the air outlet plate 40 near the left and right sides of the middle partition 24, respectively. The two sixth air outlet holes 405 are staggered up and down, and the sixth air outlet hole 405 is a vertical long hole, such as a vertical long circular hole or a vertical long strip hole; thereby, part of the cold air in the diffusion cavity 103 can flow into the refrigeration cavity 101 through the sixth air outlet hole 405 near the middle partition 24, thereby improving the temperature fluctuation and uniformity in the cabinet.

[0086] refer to Fig.15 , Fig. 20 , Fig.30 As shown, in some embodiments, each fifth air outlet 404 is provided with a guide member 42, which is located in the diffusion chamber 103 and connected to the air outlet plate 40. The guide member 42 includes a guide plate 421 and two retaining edges 422 connected to both ends of the guide plate 421; the guide plate 421 is aligned with the lower edge of the fifth air outlet 404, the length of the guide plate 421 is equivalent to the hole length of the fifth air outlet 404, and the guide plate 421 is inclined downward toward the refrigerating chamber 101 to guide part of the cold energy in the diffusion chamber 103 to flow smoothly into the refrigerating chamber 101 through the fifth air outlet 404; the two retaining edges 422 are in an upward expansion state relative to the guide plate 421 to better collect the cold energy in the diffusion chamber 103 flowing through the fifth air outlet 404, so that it flows into the refrigerating chamber 101 through the fifth air outlet 404.

[0087] refer to Fig.13 , Fig.17 , Fig.18As shown, in some embodiments, the air duct baffle 20 includes a first air guide plate 25, an air induction plate 26, and a second air guide plate 27 connected in sequence from top to bottom, and the air induction plate 26 protrudes backward relative to the first air guide plate 25 and the second air guide plate 27; thereby, the thickness of the diffusion chamber 103 at the air induction plate 26 is greater than its thickness at the first air guide plate 25 and also greater than its thickness at the second air guide plate 27. The fifth air outlet 404 and the sixth air outlet 405 are both provided on the air outlet plate 40 corresponding to the air induction plate 26; the air induction port 201 is provided on the air induction plate 26, so the centrifugal fan 70 is located in the diffusion chamber 103 corresponding to the air induction plate 26; thereby, the airflow flowing from the diffusion chamber 103 to the first air outlet 401 is guided by the arrangement of the first air guide plate 25, and the airflow flowing from the diffusion chamber 103 to the second air outlet 402 and the third air outlet 202 is guided by the arrangement of the second air guide plate 27.

[0088] refer to Fig.14 , Fig.15 As shown, in some embodiments, the second air outlet 402 is arranged within the range of 3 / 8 to 2 / 5 of the height from top to bottom of the refrigerating chamber 101; Fig.14 For this eight-layer medical refrigerator, the second air outlet 402 is approximately below the third shelf 80 from the top to the bottom.

[0089] Embodiment 4:

[0090] Based on the medical refrigerator of the second embodiment, the medical refrigerator of the fourth embodiment is modified. Figure 21-Figure 30 As shown, a vertically extending middle partition 24 is connected between the upper baffle wall 21 and the lower baffle wall 22, so that two left and right diffusion chambers 103 are formed between the air outlet plate 40, the air duct baffle plate 20 and the left and right side walls of the refrigeration chamber 101; the number of centrifugal fans 70 is two, and the two centrifugal fans 70 are respectively arranged in the two diffusion chambers 103.

[0091] Reference 22- Fig.26 , Fig.29As shown, the air outlet plate 40 includes a first air outlet plate 43, a second air outlet plate 44 and a third air outlet plate 45 which are connected in sequence from top to bottom. The second air outlet plate 44 protrudes forward relative to the first air outlet plate 43 and the third air outlet plate 45, that is, the air outlet plate 40 as a whole has a three-section structure design; the upper end of the first air outlet plate 43 is connected to the upper baffle wall 21, and the lower end of the third air outlet plate 45 is connected to the lower baffle wall 22, thereby connecting the air outlet plate 40 between the upper baffle wall 21 and the lower baffle wall of the air duct baffle 20. The first air outlet 401 is arranged at the upper part of the first air outlet plate 43, the second air outlet 402 is arranged at the lower part of the third air outlet plate 45, and the air inlet 201 is opened on the air duct baffle 20 corresponding to the second air outlet plate 44, so that the centrifugal fan 70 is located in the wider diffusion cavity 103 corresponding to the second air outlet plate 44; the connecting end corresponding to the air inlet end of the centrifugal fan 70 is connected to the air outlet plate 40, that is, the wider diffusion cavity 103 corresponding to the second air outlet plate 44 serves as the installation cavity of the centrifugal fan 70; it can be understood that It is understood that the connecting end of the centrifugal fan 70 usually has a certain thickness, and there is no air outlet within this thickness range. Therefore, the rearward convex arrangement of the first air outlet plate 43 and the third air outlet plate 45 relative to the second air outlet plate 44 reduces the space of the diffusion chamber 103 within the thickness range where the connecting end of the centrifugal fan 70 is located, that is, it reduces the invalid or inefficient flow space in the diffusion chamber 103, which is beneficial to the efficient flow of cold in the diffusion chamber 103. At the same time, the three-section structural design of the air outlet plate 40 also reduces the space occupied by the air duct component.

[0092] refer to Figure 23-Figure 26 , Fig.29 As shown, in some embodiments, a plurality of seventh air outlet holes 406 are laterally spaced apart at the upper end of the third air outlet plate 45 on the left and right sides of the middle partition plate 24, that is, the seventh air outlet hole 406 is located below the centrifugal fan 70, and the seventh air outlet hole 406 is a horizontally long hole, such as a horizontally long circular hole or a horizontally long strip hole; thereby, part of the cold air in the two diffusion chambers 103 can flow into the refrigeration chamber 101 through the seventh air outlet hole 406, thereby improving the fluctuation and uniformity of the temperature in the cabinet. An eighth air outlet hole 407 is provided on the second air outlet plate 44 on the side close to the middle partition 24, and a ninth air outlet hole 408 is provided on the third air outlet plate 45 on the other side close to the middle partition 24; the eighth air outlet hole 407 is a vertical long hole, such as a vertical long circular hole or a vertical long strip hole; the ninth air outlet hole 408 is an oblique long hole, such as an obliquely arranged long circular hole or a long strip hole. It should be noted that the inclination direction of the ninth air outlet hole 408 is consistent with the air outlet direction of the centrifugal fan 70 at this location; thereby, part of the cold air in the diffusion chamber 103 can flow into the refrigeration chamber 101 through the eighth air outlet hole 407 and the ninth air outlet hole 408 near the middle partition 24, thereby improving the temperature fluctuation and uniformity in the cabinet.

[0093] refer to Fig.24 , Fig.29 , Fig.30As shown, in some embodiments, each of the seventh air outlet 406, the eighth air outlet 407 and the ninth air outlet 408 is equipped with a guide member 42, which is located in the diffusion cavity 103 and connected to the air outlet plate 40. The guide member 42 includes a guide plate 421 and two retaining edges 422 connected to both ends of the guide plate 421. The guide plate 421 at the seventh air outlet 406 is aligned with the lower edge of the seventh air outlet 406, and the length of the guide plate 421 is equivalent to the hole length of the seventh air outlet 406. The guide plate 421 is tilted downward toward the refrigerated chamber 101 to guide part of the cold energy in the diffusion chamber 103 to flow smoothly into the refrigerated chamber 101 through the seventh air outlet 406; the two retaining edges 422 are expanded upward relative to the guide plate 421 to better collect the cold energy in the diffusion chamber 103 that flows through the seventh air outlet 406, so that it flows into the refrigerated chamber 101 through the seventh air outlet 406. The guide plates 421 at the eighth air outlet 407 and the ninth air outlet 408 are respectively aligned with the edge of the air outlets where they are located close to the middle partition 24 and are tilted outward toward the refrigerated chamber 101 to guide part of the cold air in the diffusion chamber 103 to flow smoothly into the refrigerated chamber 101 through the eighth air outlet 407 and the ninth air outlet 408; the two baffles are respectively expanded outward relative to the guide plates 421 where they are located to better collect the cold air in the diffusion chamber 103 that flows through the eighth air outlet 407 and the ninth air outlet 408, so that the eighth air outlet 407 and the ninth air outlet 408 flow into the refrigerated chamber 101.

[0094] refer to Fig. 22 , Fig.26 , Fig. 27 As shown, in some embodiments, the air duct baffle 20 includes a first air guide plate 25, an air induction plate 26, and a second air guide plate 27 connected in sequence from top to bottom; the air induction plate 26 protrudes backward relative to the first air guide plate 25 and the second air guide plate 27. The air induction plate 26 corresponds to the second air outlet plate 44, and the lower end of the air induction plate 26 is lower than the lower end of the second air outlet plate 44. The air induction ports 201 are all opened on the air induction plate 26; thus, the centrifugal fan 70 is located in the diffusion chamber 103 between the air induction plate 26 and the second air outlet plate 44; thus, the airflow flowing from the diffusion chamber 103 to the first air outlet 401 is guided by the setting of the first air guide plate 25, and the airflow flowing from the diffusion chamber 103 to the second air outlet 402 and the third air outlet 202 is guided by the setting of the second air guide plate 27.

[0095] refer to Fig.23 , Fig.24 As shown, in some embodiments, the second air outlet 402 is arranged within the range of 3 / 8 to 2 / 5 of the height from top to bottom of the refrigerating chamber 101; Fig.23 For this eight-layer medical refrigerator, the second air outlet 402 is approximately below the third shelf 80 from the top to the bottom.

[0096] In summary, the medical refrigerator of the present invention ensures that the temperature inside the cabinet meets the industry standard requirements, improves the temperature uniformity and fluctuation inside the cabinet, and increases the effective storage volume inside the cabinet by setting the air duct assembly on the rear wall of the refrigeration chamber 101 and the air outlets in multiple different directions.

[0097] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0098] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it; although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation method of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for which protection is requested in the utility model.

Claims

1. A medical refrigerator, characterized in that: include: A cabinet body having a refrigeration cavity with a front opening therein; An air duct assembly is connected to the rear wall of the refrigeration chamber; the air duct assembly includes an air outlet plate, an air duct baffle plate connected up and down, and an air inlet plate; wherein, The air duct baffle covers the upper section of the rear cavity wall, the air inlet plate covers the middle and lower sections of the rear cavity wall, and an air duct is formed between the air duct baffle, the air inlet plate and the rear cavity wall; an air inlet is provided at the lower part of the air inlet plate to connect the air duct with the refrigerating cavity; an upper baffle wall and a lower baffle wall folded toward the refrigerating cavity are respectively provided at the upper and lower sides of the air duct baffle; The air outlet plate is connected between the upper baffle wall and the lower baffle wall, and a diffusion cavity is formed between the air outlet plate, the air duct baffle plate and the left and right side walls of the refrigeration cavity; an air inlet is provided on the air duct baffle plate to connect the diffusion cavity with the air duct; a first air outlet is provided on the upper part of the air outlet plate, a second air outlet is provided on the lower part of the air outlet plate, and a third air outlet is provided on the lower baffle wall, and the diffusion cavity is connected with the refrigeration cavity through the first air outlet, the second air outlet and the third air outlet; an evaporator, which is sandwiched in the air duct between the air inlet and the air inlet; A centrifugal fan is arranged in the diffusion chamber, and an air inlet end of the centrifugal fan faces the air inlet.

2. The medical refrigerator according to claim 1, characterized in that: At least one vertically extending middle partition is connected between the upper baffle wall and the lower baffle wall, so that at least two diffusion chambers in the left and right directions are formed between the air outlet plate, the air duct baffle and the left and right side walls of the refrigeration chamber; an air inlet is provided on the air duct baffle corresponding to each diffusion chamber, so that each diffusion chamber is connected to the air duct; the number of the centrifugal fans is at least two, and the centrifugal fans are arranged in the diffusion chamber one by one, and the air inlet end of each centrifugal fan is directly opposite to the air inlet of the diffusion chamber where it is located.

3. The medical refrigerator according to claim 1, characterized in that: A vertically extending middle partition is connected between the upper baffle wall and the lower baffle wall, so that two left and right diffusion chambers are formed between the air outlet plate, the air duct baffle and the left and right side walls of the refrigeration chamber; an air inlet is provided on the air duct baffle corresponding to each diffusion chamber, so that each diffusion chamber is connected to the air duct; the number of the centrifugal fans is two, and the two centrifugal fans are respectively arranged in the two diffusion chambers, and the air inlet end of each centrifugal fan is directly facing the air inlet of the diffusion chamber where it is located.

4. The medical refrigerator according to claim 3, characterized in that: The middle part of the air outlet plate is provided with two fifth air outlet holes which are symmetrical with respect to the middle partition and are arranged in an inverted eight shape. The fifth air outlet hole is located below and outside the centrifugal fan in the corresponding diffusion chamber, and the fifth air outlet hole is an oblique long hole; the middle part of the air outlet plate is respectively provided with a sixth air outlet hole near the left and right sides of the middle partition, and the two sixth air outlet holes are staggered up and down, and the sixth air outlet hole is a vertical long hole; the fifth air outlet hole is equipped with a guide member, and the guide member is located in the diffusion chamber; the guide member includes a guide plate and two ribs connected to both ends of the guide plate, the guide plate is aligned with the lower edge of the fifth air outlet hole and is tilted downward toward the refrigeration chamber, and the two ribs are extended upward relative to the guide plate.

5. The medical refrigerator according to claim 3, characterized in that: The air outlet plate includes a first air outlet plate, a second air outlet plate and a third air outlet plate which are connected in sequence from top to bottom, and the second air outlet plate protrudes forward relative to the first air outlet plate and the third air outlet plate; the upper end of the first air outlet plate is connected to the upper baffle wall, and the lower end of the third air outlet plate is connected to the lower baffle wall; the first air outlet is arranged at the upper part of the first air outlet plate, the second air outlet is arranged at the lower part of the third air outlet plate, and the air inlet is opened on the air duct baffle corresponding to the second air outlet plate.

6. The medical refrigerator according to claim 5, characterized in that: The upper end of the third air outlet plate is provided with a plurality of seventh air outlet holes at intervals on the left and right sides of the middle partition, and the seventh air outlet hole is a horizontal long hole; the second air outlet plate is provided with an eighth air outlet hole on the side close to the middle partition, and the third air outlet plate is provided with a ninth air outlet hole on the other side close to the middle partition, the eighth air outlet hole is a vertical long hole, and the ninth air outlet hole is an oblique long hole; the seventh air outlet hole, the eighth air outlet hole and the ninth air outlet hole are all equipped with guide members, and the guide members are located in the diffusion cavity; the guide member includes a guide plate and two retaining edges connected to both ends of the guide plate; the guide plate at the seventh air outlet hole is aligned with the lower edge of the seventh air outlet hole and is tilted downward toward the refrigeration cavity, and the two retaining edges are in an upward expansion state relative to the guide plate; the guide plates at the eighth air outlet hole and the ninth air outlet hole are respectively aligned with the edge of the air outlet close to the middle partition and are tilted outward toward the refrigeration cavity, and the two retaining edges are respectively in an outward expansion state relative to the guide plate where they are located.

7. The medical refrigerator according to any one of claims 1 to 6, characterized in that: The left and right sides of the air outlet plate are not in contact with the left and right side walls of the refrigerating chamber, so that a fourth air outlet is formed between the air outlet plate and the left and right side walls of the refrigerating chamber respectively; the left and right sides of the air duct baffle are respectively provided with vertically extending air guide strips; one side of the air guide strip is connected to the air duct baffle, and the other side extends obliquely toward the direction of the fourth air outlet; the left and right sides of the air outlet plate are respectively provided with guide walls folded toward the refrigerating chamber.

8. The medical refrigerator according to any one of claims 1 to 6, characterized in that: The air duct baffle comprises a first air guide plate and an air inlet plate which are interconnected up and down, and the air inlet plate protrudes backward relative to the first air guide plate; the air inlet is opened on the air inlet plate; the air duct assembly comprises a door-shaped air duct frame, the front end face of the air duct frame is connected to the air inlet plate and the air inlet plate, and the rear end face of the air duct frame is connected to the rear cavity wall, so that an air duct is formed between the air inlet plate, the air inlet plate and the rear cavity wall; a containing cavity is formed between the first air guide plate and the rear cavity wall located above the air duct frame, and the containing cavity is used to place a water box temperature measuring device.

9. The medical refrigerator according to any one of claims 1 to 6, characterized in that: The air inlet includes multiple rows of air inlet grilles, each row of the air inlet grilles includes multiple air inlet holes arranged at a transverse interval, and the air inlet holes are vertically long holes; the first air outlet includes at least one row of first air outlet grilles, the first air outlet grilles include multiple first air outlet holes arranged at a transverse interval, and the first air outlet holes are horizontally long holes; the second air outlet includes multiple rows of second air outlet grilles, each row of the second air outlet grilles includes multiple second air outlet holes arranged at a transverse interval, and the second air outlet holes are horizontally long holes; the third air outlet includes multiple third air outlet holes arranged at a transverse interval, and the third air outlet holes are vertically long holes.

10. The medical refrigerator according to any one of claims 1 to 6, characterized in that: The upper baffle wall extends in an upwardly inclined state toward the refrigerating chamber; the lower baffle wall extends in a downwardly inclined state toward the refrigerating chamber.

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