Refrigeration device, kit and refrigeration system

Abstract

The utility model discloses a refrigeration device, a kit and a refrigeration system. The refrigeration device comprises a box body, a box cover, a box cover and a box cover, the bin door is arranged on one side of the box body and can automatically open and close the opening; the refrigerating part and the pressure part are arranged on the other side of the box body, the cold end output surface of the refrigerating part is communicated with the interlayer air duct, and the hot end output surface is located on the outer side of the box body; the pressure part is arranged on the cold end output surface of the refrigeration part; the partition plate and one side of the box body form a containing area, and the partition plate and the other side of the box body form a cold source supply area; the air in the accommodating area is blown to the refrigerating part under the extraction action of the pressure part and forms a cold air source in the cold source supply area; negative pressure is formed in the containing area, and the cold air source enters the containing area through the interlayer air channel under the action of the negative pressure to form convective heat exchange. The device can realize accelerated circulation speed of air in the accommodating area, ensures uniform distribution of temperature in the accommodating area, realizes efficient refrigeration, and is simple in structure and small in size.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of biomedical detection, and in particular to a refrigeration device, a kit and a refrigeration system. BACKGROUND

[0002] In order to ensure the activity of enzymes, reagents are generally stored in an environment of about 4℃ during use; however, the internal temperature of general in-vitro diagnostic equipment such as biochemical analyzers, chemiluminescence immunoassay analyzers and gene sequencers can reach 45℃ during operation, and therefore special refrigeration devices are required to store reagents.

[0003] The existing refrigeration scheme is generally to use a compressor to force refrigeration, but the compressor and its auxiliary equipment (such as a condenser and an evaporator) are relatively large in size and are not suitable for small in-vitro diagnostic equipment with limited space, and cannot meet the requirements of fast and efficient refrigeration preservation of small equipment.

[0004] At the same time, the compressor generates relatively large vibration and noise during operation, which affects the stability of the equipment and the user experience, in addition, the compressor refrigeration generally requires relatively high energy consumption, and long-term operation will increase the use cost of the equipment, and since there are many mechanical moving parts inside the compressor, the failure rate is relatively high, and the maintenance cost is also high. CONTENT OF THE INVENTION

[0005] Therefore, the present disclosure provides a refrigeration device, a kit and a refrigeration system, which at least partially solve the problems of large volume, large noise and high energy consumption of the existing refrigeration device, and cannot meet the requirements of fast and efficient refrigeration preservation of small equipment.

[0006] In a first aspect, the present disclosure provides a refrigeration device, comprising:

[0007] a box body having a cavity with an opening, the cavity being surrounded by a sandwich air duct;

[0008] a door mounted on one side of the box body, having a rotation freedom degree for opening and closing the opening;

[0009] a refrigeration component and a pressure component mounted on the other side of the box body, a cold end output surface of the refrigeration component being in communication with the sandwich air duct, and a hot end output surface of the refrigeration component being located on the outside of the box body; the pressure component being arranged on the cold end output surface of the refrigeration component;

[0010] a partition plate matched with the pressure component, the partition plate and the one side of the box body forming a containing area, and the partition plate and the other side of the box body forming a cold source supply area;

[0011] Air in the containing area is blown to the refrigeration element under the action of the pressure element, and a cold air source is formed at the cold source supply area; the inside of the containing area forms a negative pressure, and the cold air source enters the containing area through the interlayer air duct under the action of the negative pressure to form a convection heat exchange.

[0012] Optionally, the box body comprises a first outer side plate, a second outer side plate, a third outer side plate, a fourth outer side plate, a fifth outer side plate, and a first inner side plate, a second inner side plate, a third inner side plate, and a fourth inner side plate arranged inside the first outer side plate, the second outer side plate, the third outer side plate, and the fourth outer side plate respectively.

[0013] The first outer side plate and the second outer side plate are arranged opposite to each other, and the third outer side plate and the fourth outer side plate are arranged opposite to each other; the first inner side plate, the second inner side plate, the third inner side plate, and the fourth inner side plate form an inner container.

[0014] The first inner side plate is provided with a first baffle plate on the side away from the first outer side plate, and an interlayer air duct is formed between the first baffle plate and the first inner side plate; the second inner side plate is provided with a second baffle plate on the side away from the second outer side plate, and an interlayer air duct is formed between the second baffle plate and the second inner side plate.

[0015] The two ends of the partition plate are fixedly connected with the first baffle plate and the second baffle plate respectively.

[0016] Optionally, the refrigeration element comprises a refrigeration device, a semiconductor refrigeration sheet, and a foamed heat preservation layer arranged in matching with the semiconductor refrigeration sheet.

[0017] The fifth outer side plate is provided with an assembly hole for accommodating the foamed heat preservation layer.

[0018] The refrigeration device is arranged on the side of the foamed heat preservation layer away from the pressure element, and the refrigeration device is arranged on the cold end output surface of the semiconductor refrigeration sheet; the refrigeration device comprises refrigeration fins arranged in matching with the pressure element.

[0019] The output surface of the semiconductor refrigeration sheet is located outside the fifth outer side plate.

[0020] Optionally, the outside of the fifth outer side plate is further provided with a heat dissipation assembly, and the heat dissipation assembly comprises heat dissipation fins, a heat dissipation fan, and a fan support; the heat dissipation fins are arranged on the output surface of the semiconductor refrigeration sheet.

[0021] The heat dissipation fan is arranged on the first side of the fan support, and the air supply surface of the heat dissipation fan is arranged in matching with the heat dissipation fins.

[0022] The fan support is fixedly connected with the fifth outer side plate, and a second side of the fan support is open;

[0023] The plane where the air supply surface of the heat dissipation fan is located is perpendicular to the plane where the air extraction surface of the pressure element is located.

[0024] Optionally, the partition plate is provided with a mounting hole for assembling the pressure element;

[0025] The partition plate comprises a plate-shaped body, a first air guide part and a second air guide part, the first air guide part is arranged between the plate-shaped body and the first inner side plate, and forms an obtuse angle with the plate-shaped body;

[0026] The plate-shaped body, the first air guide part and the third inner side plate form a left air supply channel;

[0027] The second air guide part is arranged between the plate-shaped body and the second inner side plate, and forms an obtuse angle with the plate-shaped body;

[0028] The plate-shaped body, the second air guide part and the fourth inner side plate form a right air supply channel.

[0029] Optionally, the first baffle plate is provided with a first air supply hole penetrating the containing area;

[0030] The distance from the first air supply hole to the pressure element is L1, the internal length of the inner container is L2, and L2 / 2 < L1 < L2;

[0031] The second baffle plate is provided with a second air supply hole corresponding to the first air supply hole.

[0032] Optionally, the first air supply hole is provided with a plurality of first air supply holes, and the plurality of first air supply holes are symmetrically arranged relative to the longitudinal center axis of the box body;

[0033] The distance from the first air supply hole farthest from the pressure element to one side of the box body is L3, and 0.1L2 / 10 < L3 < 0.2L2.

[0034] Optionally, the first inner side plate, the second inner side plate, the third inner side plate and the fourth inner side plate are integrally formed;

[0035] The first inner side plate, the second inner side plate, the third inner side plate and the fourth inner side plate are provided between the first outer side plate, the second outer side plate, the third outer side plate and the fourth outer side plate and filled with heat insulation cotton.

[0036] In a second aspect, the application discloses a kit, which is matched with the refrigeration device.

[0037] The reagent kit is provided with reagent accommodating grooves of different sizes.

[0038] In a third aspect, the application discloses a refrigeration system, which comprises a general control center, the refrigeration device and the reagent kit.

[0039] The refrigeration device is further provided with a position detection device, a temperature detection device and an information acquisition device, which are respectively connected with the general control center.

[0040] The general control center triggers the pressure device and the refrigeration device to start based on the reagent kit in place signal detected by the position detection device, and determines the target refrigeration temperature based on the reagent information on the reagent kit collected by the information acquisition device.

[0041] The general control center controls the pressure device and the refrigeration device to stop based on the temperature signal meeting the target refrigeration temperature detected by the temperature detection device.

[0042] The refrigeration device disclosed in the application can quickly blow the air in the accommodating area to the refrigeration device for cooling under the extraction of the pressure device, and meanwhile, a negative pressure is formed in the accommodating area; the cooled air forms a cold air source, and the cold end output surface of the refrigeration device is directly communicated with the sandwich air duct, so that the cold air source can be quickly and uniformly transported to the accommodating area under the negative pressure; the cold air source absorbs heat in the accommodating area and becomes hot air, and then is blown to the refrigeration device under the extraction of the pressure device, forming an air circulation loop to realize forced convection heat exchange; meanwhile, the pressure device and the partition plate are matched, so that the formation of the cold air source is more efficient, and unnecessary energy consumption is reduced; the hot end output surface of the refrigeration device is located outside the box, so that the output surfaces of the cold end and the hot end are separated, heat can be effectively avoided from being concentrated in the box, energy waste is reduced, and energy efficiency is further improved; the design effectively accelerates the circulation speed of the air in the accommodating area, ensures uniform distribution of the temperature in the chamber, avoids uneven cooling and heating, and makes the refrigeration effect more rapid and efficient.

[0043] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, the following preferred embodiments are described in detail in combination with the drawings, and the above and other purposes, characteristics and advantages of the present application can be more obvious and easy to understand. BRIEF DESCRIPTION OF DRAWINGS

[0044] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a three-dimensional schematic diagram of a refrigeration system provided in an embodiment of the present disclosure.

[0046] Figure 2 This is a perspective view of a refrigeration device provided in an embodiment of the present disclosure.

[0047] Figure 3 for Figure 2 A partial diagram of the explosion.

[0048] Figure 4 for Figure 2 A complete diagram of the explosion.

[0049] Figure 5 for Figure 2 Schematic diagram of internal airflow direction.

[0050] Figure 6 for Figure 2 A schematic diagram of the storage area and the cold source supply area.

[0051] Figure 7 for Figure 2 Diagram showing the internal left and right airflow directions.

[0052] Explanation of reference numerals in the attached figures:

[0053] 10. Reagent kit; 20. Position detection device; 30. Information acquisition device; 100. Housing; 101. Receiving area; 102. Cold source supply area; 110. Outer shell; 111. First outer side panel; 112. Second outer side panel; 113. Third outer side panel; 114. Fourth outer side panel; 115. Fifth outer side panel; 120. Inner liner; 121. First inner side panel; 122. Second inner side panel; 123. Third inner side panel; 124. Fourth inner side panel; 200. Door; 300. Refrigeration component; 311. Refrigeration fins; 320. Semiconductor cooling chip; 330. Foamed insulation layer; 400. Pressure component; 500. Partition; 510. Plate-shaped body; 520. First air guide section; 530. Second air guide section; 610. First baffle; 611. First air outlet; 620. Second baffle; 621. Second air outlet; 710. Upper interlayer air duct; 720. Lower interlayer air duct; 730. Left side air duct; 740. Right side air duct; 800. Heat dissipation assembly; 810. Heat dissipation fins; 820. Cooling fan; 830. Fan bracket. Detailed Implementation

[0054] The present disclosure will be described in further detail below with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the present disclosure. In addition, it should be noted that, for the purpose of clarity, only parts of the present disclosure that are related to the present disclosure are shown in the drawings.

[0055] It should be noted that the embodiments and features of the embodiments in the present disclosure can be combined with each other without conflict. The technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0056] Unless otherwise specified, the exemplary embodiments / instances shown will be understood to provide exemplary features of various details that can implement the technical concepts of the present disclosure in practice. Therefore, unless otherwise specified, the features of various embodiments / instances can be additionally combined, separated, interchanged and / or rearranged without departing from the technical concepts of the present disclosure.

[0057] In the drawings, cross-hatching and / or shading are generally used to indicate that a portion of one component is positioned above another component. As such, unless otherwise specified, the presence of cross-hatching or shading is not a requirement of the present disclosure. In addition, for clarity and / or descriptive purposes, the sizes of the components shown in the drawings can be exaggerated relative to other components. When the exemplary embodiments can be carried out differently, a specific process sequence can be performed in a different order from that described. For example, two consecutively described processes can be performed substantially simultaneously or in an order opposite to that described. In addition, the same reference numerals represent the same components.

[0058] When a component is referred to as being "on" or "above" another component, "connected to" or "coupled to" another component, the component can be directly on, directly connected to or directly coupled to the other component, or there can be an intermediate component. However, when a component is referred to as being "directly on", "directly connected to" or "directly coupled to" another component, there is no intermediate component. For this reason, the term "connected" can refer to a physical connection, an electrical connection, etc., with or without an intermediate component.

[0059] For descriptive purposes, the present disclosure can use spatially relative terms, such as "below," "beneath," "lower," "under," "above," "upper," "over," and the like, to describe the relative position of one component to another as illustrated in the attached drawings. The spatially relative terms are intended to encompass different positions of the devices in use, operation, and / or manufacture in the orientations depicted in the drawings. For example, if the device in the drawings were turned over, then a component described as "below" or "beneath" another component or feature would then be oriented "above" the other component or feature. Thus, the exemplary term "below" can encompass both an orientation of above and below. The devices can be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0060] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, to the extent that the terms "including," "includes," "having," "has," "with," or "contains," "containing," or variants thereof to generally mean "comprising," "comprises," "comprising," or "comprises" in the description of components (and / or the absence thereof) of the devices is not meant to be a limitation. It is also noted that the terms "substantially," "approximately," and other similar terms and phrases are used herein in the sense of "about" as is understood in the art, and not as a degree term, such that they are used to account for inherent variation in measurement, calculation, and / or provision of a value.

[0061] Referring to Figure 1 The present application discloses a refrigeration system, which comprises a central control center (not shown), a refrigeration device and a kit 10. The kit 10 is provided with a plurality of reagent accommodating grooves of different sizes for accommodating different reagents. The refrigeration device is used for refrigerating the reagents in the kit 10 and providing the required temperature for the reagents.

[0062] The refrigeration device is provided with a position detection device 20, an information acquisition device 30 and a temperature detection device (not shown) which are respectively connected with the central control center. The position detection device 20 is preferably a position sensor, which is used for detecting whether the kit 10 is placed in position. The information acquisition device 30 is preferably an RFID card reader, which is used for acquiring the reagent information on the kit 10. The temperature detection device is used for detecting the temperature information in the refrigeration device.

[0063] In the working state, the total control center triggers the pressure element and refrigeration element in the refrigeration device based on the reagent box 10 in-place signal detected by the position detection device 20, determines the target refrigeration temperature based on the reagent information on the reagent box 10 collected by the information acquisition device 30, and controls the pressure element and refrigeration element in the refrigeration device to stop based on the temperature signal detected by the temperature detection device that meets the target refrigeration temperature.

[0064] Further, the refrigeration system disclosed in the present application also includes a user interface, and the reagent box position information detected by the position detection device 20, the reagent information on the reagent box acquired by the information acquisition device 30, and the temperature information detected by the temperature detection device can be fed back to the user interface on the screen of the whole machine in real time, so as to facilitate the user to monitor the reagent information in real time.

[0065] Referring to Figure 2 , the refrigeration device includes a box body 100 and a bin door 200, the box body 100 has an open cavity, and the cavity is surrounded by a sandwich air duct; the bin door 200 is installed on one side of the box body 100 and has a rotating degree of opening and closing the opening of the box body 100.

[0066] Further, the bin door 200 is provided with a motor and a hydraulic element, and the hydraulic element is signal-connected with the motor; the hydraulic element is arranged between the opening side and the bin door 200 and is used for automatically opening or closing the box body 100 under the control of the motor.

[0067] Further, referring to Figure 3 and Figure 4 , the box body 100 includes an outer shell 110 and an inner container 120, the outer shell 110 includes a first outer side plate 111, a second outer side plate 112, a third outer side plate 113, a fourth outer side plate 114, and a fifth outer side plate 115, the first outer side plate 111 is arranged opposite to the second outer side plate 112, and the third outer side plate 113 is arranged opposite to the fourth outer side plate 114.

[0068] The inner container 120 includes a first inner side plate 121, a second inner side plate 122, a third inner side plate 123, and a fourth inner side plate 124 arranged inside the first outer side plate 111, the second outer side plate 112, the third outer side plate 113, and the fourth outer side plate 114 respectively, wherein the first inner side plate 121 is arranged opposite to the second inner side plate 122, and the third inner side plate 123 is arranged opposite to the fourth inner side plate 124.

[0069] In this embodiment, the inner container is preferably an AL6061 heat-conducting inner container.

[0070] The first inner side plate 121 is provided with a first baffle 610 on the side away from the first outer side plate 111; the second inner side plate 122 is provided with a second baffle 620 on the side away from the second outer side plate 112, wherein the first baffle 610 and the second baffle 620 are preferably ABS plates.

[0071] The refrigeration device further comprises a refrigeration component 300, a pressure component 400 and a partition plate 500 matched with the pressure component 400, which are arranged on the other side of the cabinet 100. The cold end output surface of the refrigeration component 300 is communicated with the interlayer air duct, and the hot end output surface of the refrigeration component 300 is located outside the cabinet 100. The pressure component 400 is arranged on the cold end output surface of the refrigeration component 300, and is used for extracting hot gas and blowing it to the refrigeration component 300.

[0072] The refrigeration component 300 comprises a refrigeration device, a semiconductor refrigeration sheet 320 and a foamed heat preservation layer 330 matched with the semiconductor refrigeration sheet 320. The refrigeration device is arranged on the side of the foamed heat preservation layer 330 away from the pressure component 400, and is arranged on the cold end output surface of the semiconductor refrigeration sheet 320 and closely adheres to the cold end output surface of the semiconductor refrigeration sheet 320.

[0073] The refrigeration device comprises refrigeration fins 311 matched with the pressure component 400, which are used for increasing the contact area with the hot gas extracted by the pressure component 400, so as to rapidly cool the extracted hot gas.

[0074] Preferably, the pressure component 400 is a fan assembly, and the start of the fan can be controlled by a power supply.

[0075] The fifth outer side plate 115 is provided with an assembly hole for accommodating the foamed heat preservation layer 330, which can ensure the installation of the foamed heat preservation layer 330 and the sealing of the cabinet 100 after installation.

[0076] The output surface of the semiconductor refrigeration sheet 320 is located outside the fifth outer side plate 115, so that the heat can be directly sent to the outside of the whole machine, effectively reducing the heat dissipation pressure of the whole machine. The cold energy generated by the semiconductor refrigeration sheet 320 during operation is transferred to the refrigeration fins 311. When the hot gas extracted by the pressure component 400 passes through the refrigeration fins 311, the cold energy is absorbed to cool the hot gas, so that the hot gas becomes a cold air source. Then, the cold air source (i.e. the cooled gas) flows into the area to be cooled through the interlayer air duct, forming an air loop, so as to forcibly convect and exchange heat with the articles (such as the reagent box 10) placed in the area to be cooled, thereby achieving cooling.

[0077] The outer side of the fifth outer side plate 115 is further provided with a heat dissipation assembly 800, which comprises heat dissipation fins 810, a heat dissipation fan 820 and a fan bracket 830. The heat dissipation fins 810 are installed on the output surface of the semiconductor refrigeration sheet 320. The heat dissipation fan 820 is installed on the first side of the fan bracket 830, and the air supply surface of the heat dissipation fan 820 is matched with the heat dissipation fins 810.

[0078] The fan bracket 830 is fixedly connected with the fifth outer side plate 115, and the second side of the fan bracket 830 is open. The second side is the opposite side of the first side.

[0079] The plane where the air supply surface of the heat dissipation fan 820 is located is perpendicular to the plane where the air extraction surface of the pressure element 400 is located; in the working state, the heat dissipation fan 820 is started, air is blown to the heat dissipation fins 810, the heat on the heat dissipation fins 810 is output to the outside of the whole machine under the action of the air flow, and the cooling of the heat dissipation fins 810 is realized.

[0080] Further, the opening on the second side can also be arranged on the side of the fan bracket 830 away from the fifth outer side plate 115, so that the openings on the first side and the second side form an L-shaped path, that is, the heat dissipation fan 820 is started, air is blown to the heat dissipation fins 810, the heat on the heat dissipation fins 810 is output to the outside of the whole machine downward and then to the right under the action of the air flow, and the influence of the discharged heat on the heat dissipation fins 810 is further prevented.

[0081] In this embodiment, the first inner side plate 121, the second inner side plate 122, the third inner side plate 123 and the fourth inner side plate 124 are preferably integrally formed; further, the inner container 120 is preferably formed by bending sheet metal, which is low in cost and convenient to process.

[0082] The first inner side plate 121, the second inner side plate 122, the third inner side plate 123, the fourth inner side plate 124, the first outer side plate 111, the second outer side plate 112, the third outer side plate 113 and the fourth outer side plate 114 are filled with heat insulation cotton for insulating external heat sources.

[0083] Referring to Figure 5 , the first baffle 610 and the first inner side plate 121 form an upper interlayer air duct (i.e., the upper interlayer air duct 710); the second baffle 620 and the second inner side plate 122 form a lower interlayer air duct (i.e., the lower interlayer air duct 720); the two ends of the partition plate 500 are fixedly connected with the first baffle 610 and the second baffle 620, respectively, the partition plate 500 and one side of the box body 100 form a containing area 101, and the partition plate 500 and the other side of the box body 100 form a cold source supply area 102, for ensuring that the cold source coming out of the cold source supply area 102 enters the containing area 101 through the upper interlayer air duct 710 and the lower interlayer air duct 720; the two interlayer air ducts arranged oppositely form a hedging for the reagent box 10 arranged in the containing area 101, effectively improving the uniform and effective cooling of the reagent in the reagent box 10.

[0084] Further, the refrigeration device comprises a condensate water pipe, one end of the condensate water pipe penetrates through the fifth outer side plate and protrudes into the lower interlayer air duct 720, for discharging water in the lower interlayer air duct 720.

[0085] The first baffle 610 is provided with a first air supply hole 611 penetrating the containing area 101; the distance from the first air supply hole 611 to the pressure piece 400 is L1, the internal length of the inner container 120 is L2, L2 / 2

[0086] The second baffle 620 is provided with a second air supply hole 621 corresponding to the first air supply hole 611, i.e. the second air supply hole 621 is symmetrically arranged with the first air supply hole 611, so as to ensure that the cold air supplied from the upper sandwich air duct 710 and the cold air supplied from the lower sandwich air duct 720 can simultaneously act on the containing area 101.

[0087] Further, the first air supply hole 611 is provided with a plurality of first air supply holes 611 symmetrically arranged with respect to the longitudinal center axis of the cabinet 100; the distance from the first air supply hole 611 farthest from the pressure piece 400 to one side of the cabinet 100 is L3, 0.1L2 / 10

[0088] Referring to Figure 6 and Figure 7 In the working state, the air in the containing area 101 is blown to the refrigeration piece 300 under the action of the pressure piece 400, and a cold air source is formed in the cold source supply area 102; the inside of the containing area 101 forms a negative pressure, and the cold air source enters the containing area 101 through the sandwich air duct under the action of the negative pressure to form a convective heat exchange, and accelerate the air flow rate in the containing area 101.

[0089] The partition plate 500 is provided with a mounting hole for assembling the pressure piece 400; through the arrangement of the partition plate 500, the gas flow direction from the containing area 101 to the cold source supply area 102 meets the preset requirements, i.e. the air flow direction from the containing area 101 to the cold source supply area 102 can only be extracted through the pressure piece 400, the hot gas in the containing area 101 is blown to the refrigeration piece 300 under the action of the pressure piece 400, and a negative pressure is formed in the containing area 101; the hot gas is cooled after passing through the refrigeration piece 300 to form a cold air source; the cold air source is blown into the containing area 101 through the upper sandwich air duct 710 and the lower sandwich air duct 720 under the action of the negative pressure to form a forced convective heat exchange.

[0090] Further, the partition 500 comprises a plate-shaped body 510, a first air guide part 520, and a second air guide part 530. The first air guide part 520 is arranged between the plate-shaped body 510 and the first inner side plate 121 and forms an obtuse angle with the plate-shaped body 510. The second air guide part 530 is arranged between the plate-shaped body 510 and the second inner side plate 122 and forms an obtuse angle with the plate-shaped body 510. The plate-shaped body 510, the first air guide part 520, and the third inner side plate 123 form a left air supply channel (i.e., the left air supply channel 730). The plate-shaped body 510, the second air guide part 530, and the fourth inner side plate 124 form a right air supply channel (i.e., the right air supply channel 740).

[0091] In this embodiment, the hot gas in the accommodation area 101 is blown to the refrigeration part 300 under the action of the pressure part 400, and the inside of the accommodation area 101 forms a negative pressure. After passing through the refrigeration part 300, the hot gas is cooled to form a cold air source. The cold air source passes through the upper sandwich air channel 710, the lower sandwich air channel 720, the left air supply channel 730, and the right air supply channel 740 under the action of the negative pressure to blow into the accommodation area 101, forming forced convection heat exchange, and further improving the cooling efficiency of the reagent placed in the accommodation area 101.

[0092] The refrigeration device disclosed in this application can quickly blow the air in the accommodation area to the refrigeration part for cooling under the extraction action of the pressure part, and at the same time, the inside of the accommodation area forms a negative pressure. The cooled gas forms a cold air source, and the cold end output surface of the refrigeration part directly communicates with the sandwich air channel. Under the action of the negative pressure, the cold air source can be quickly and uniformly transported to the accommodation area. The cold air source absorbs heat in the accommodation area and becomes hot gas, which is then blown to the refrigeration part under the extraction action of the pressure part, forming an air circulation loop and realizing forced convection heat exchange. At the same time, the setting of the pressure part and the matching with the partition make the formation of the cold air source more efficient, reducing unnecessary energy consumption. The hot end output surface of the refrigeration part is located outside the box, so that the output surfaces of the cold end and the hot end are separated, which can effectively avoid the concentration of heat in the box and reduce energy waste, further improving the energy efficiency. This design effectively speeds up the circulation speed of the air in the accommodation area, ensures the uniform distribution of the temperature in the chamber, avoids the problem of uneven temperature distribution, and makes the refrigeration effect faster and more efficient.

[0093] In addition, the partition forms a containing area on one side of the box body and a cold source supply area on the other side, which makes full use of the space inside the box body and improves the storage capacity; the sandwich air duct is formed around the chamber, which not only improves the refrigeration efficiency but also makes the overall structure of the box body more compact; the bin door installed on one side of the box body has the rotation freedom of opening and closing the opening, which makes the user more convenient when operating and can easily open and close the bin door for easy access to the goods; the negative pressure environment formed in the containing area helps to prevent the loss of cold air and improves the durability of the refrigeration effect; the modular design of the refrigeration component, the pressure component and the partition makes it more convenient to repair and replace parts, reducing maintenance cost and time.

[0094] In summary, this refrigeration device, through careful design and efficient refrigeration system, not only provides excellent refrigeration effect and temperature uniform distribution, but also performs well in energy saving and environmental protection, space utilization and operation convenience.

[0095] In the description of the present specification, the description of the terms "one embodiment / way", "some embodiments / ways", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment / way or example are included in at least one embodiment / way or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment / way or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments / ways or examples. In addition, the skilled person in the art can combine and combine the different embodiments / ways or examples described in the present specification and the features of the different embodiments / ways or examples without contradiction.

[0096] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0097] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. Based on the above disclosure, other changes or modifications can also be made by those skilled in the art, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A cold appliance, characterized in The application relates to a refrigerator, which comprises a box body with a cavity with an opening, a sandwich air duct around the cavity, a door installed on one side of the box body, the door having a rotating freedom to open and close the opening, a refrigerating part and a pressure part installed on the other side of the box body, a cold end output surface of the refrigerating part being communicated with the sandwich air duct, a hot end output surface of the refrigerating part being located outside the box body, the pressure part being arranged on the cold end output surface of the refrigerating part, a partition plate matched with the pressure part, the partition plate forming a containing area on one side of the box body and forming a cold source supply area on the other side of the box body, air in the containing area being blown to the refrigerating part under the action of the pressure part, and cold air being formed in the cold source supply area, the inside of the containing area being formed into a negative pressure, and the cold air entering the containing area through the sandwich air duct under the action of the negative pressure to form a convection heat exchange. The box body comprises a first outer side plate, a second outer side plate, a third outer side plate, a fourth outer side plate, a fifth outer side plate, a first inner side plate arranged in the first outer side plate, a second inner side plate arranged in the second outer side plate, a third inner side plate arranged in the third outer side plate, and a fourth inner side plate arranged in the fourth outer side plate. The first outer side plate is oppositely arranged with the second outer side plate, the third outer side plate is oppositely arranged with the fourth outer side plate, and the first inner side plate, the second inner side plate, the third inner side plate and the fourth inner side plate form an inner container. The first inner side plate is provided with a first baffle plate on the side far from the first outer side plate, the first baffle plate and the first inner side plate form an upper sandwich air duct, the second inner side plate is provided with a second baffle plate on the side far from the second outer side plate, and the second baffle plate and the second inner side plate form a lower sandwich air duct. The partition plate is fixedly connected with the first baffle plate and the second baffle plate at two ends. The refrigerating part comprises a refrigerating device, a semiconductor refrigerating sheet and a foamed heat preservation layer matched with the semiconductor refrigerating sheet.

2. The cold appliance of claim 1, characterized in that The fifth outer side plate is provided with an assembly hole for containing the foamed heat preservation layer. The refrigerating device is matched with one side of the foamed heat preservation layer on the side far from the pressure part, the refrigerating device is arranged on the cold end output surface of the semiconductor refrigerating sheet, and the refrigerating device comprises refrigerating fins matched with the pressure part. The output surface of the semiconductor refrigerating sheet is located outside the fifth outer side plate. The fifth outer side plate is further provided with a heat dissipation assembly, the heat dissipation assembly comprises heat dissipation fins, a heat dissipation fan and a fan support, and the heat dissipation fins are arranged on the output surface of the semiconductor refrigerating sheet.

3. The cold appliance of claim 2, characterized in that The heat dissipation fan is arranged on the first side of the fan support, and the air supply surface of the heat dissipation fan is matched with the heat dissipation fins. The fan support is fixedly connected with the fifth outer side plate, and the second side of the fan support is open. The plane where the air supply surface of the heat dissipation fan is located is perpendicular to the plane where the air extraction surface of the pressure part is located. The partition plate is provided with a mounting hole for mounting the pressure part.

4. The cold appliance of claim 3, characterized in that ​ ​ ​ ​ 5. The cold appliance of claim 2, wherein ​ The partition comprises a plate-shaped body, a first air guide part, and a second air guide part, the first air guide part is arranged between the plate-shaped body and the first inner side plate and forms an obtuse angle with the plate-shaped body; The plate-shaped body, the first air guide part, and the third inner side plate form a left air supply channel; The second air guide part is arranged between the plate-shaped body and the second inner side plate and forms an obtuse angle with the plate-shaped body; The plate-shaped body, the second air guide part, and the fourth inner side plate form a right air supply channel.

6. The cold appliance of claim 2, wherein The first baffle plate is provided with a first air supply hole penetrating the accommodating area; The distance from the first air supply hole to the pressure element is L1, the internal length of the inner container is L2, and L2 / 2 < L1 < L2; The second baffle plate is provided with a second air supply hole corresponding to the first air supply hole.

7. The cold appliance of claim 6, characterized in that The first air supply hole is provided with a plurality of first air supply holes symmetrically arranged relative to the longitudinal center axis of the box; The distance from the first air supply hole farthest from the pressure element to one side of the box is L3, and 0.1L2 / 10 < L3 < 0.2L2.

8. The cold appliance of claim 2, wherein The first inner side plate, the second inner side plate, the third inner side plate, and the fourth inner side plate are integrally formed; The first inner side plate, the second inner side plate, the third inner side plate, the fourth inner side plate, the first outer side plate, the second outer side plate, the third outer side plate, and the fourth outer side plate are filled with heat insulation cotton.

9. A kit characterized in that, The kit is matched with the refrigeration device of any one of claims 1-8; The kit is provided with reagent accommodating grooves of different sizes.

10. A refrigeration system characterized by, The kit is placed in the accommodating area and provides a refrigeration temperature through the pressure element and the refrigeration element; The refrigeration device is further provided with a position detection device, a temperature detection device, and an information acquisition device respectively connected with the central control center; The central control center triggers the pressure element and the refrigeration element based on the reagent kit in place signal detected by the position detection device and determines the target refrigeration temperature based on the reagent information on the kit collected by the information acquisition device; The central control center controls the pressure element and the refrigeration element to stop based on the temperature signal meeting the target refrigeration temperature detected by the temperature detection device.

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