Refrigeration equipment

Abstract

The utility model provides refrigeration equipment. The refrigeration equipment comprises a shell; a carbon dioxide adsorption mechanism; an evaporator defrosting mechanism; a carbon dioxide outlet is formed in the gas channel and is communicated with the storage chamber. According to the refrigeration equipment provided by the utility model, the carbon dioxide adsorption mechanism is used for adsorbing carbon dioxide at normal temperature, so that the problem that in the prior art, carbon dioxide can be collected only by switching on and switching off an additional power supply is solved, and the energy consumption and the structural complexity of the refrigeration equipment are reduced; the evaporator defrosting mechanism is used for heating, so that adsorbed carbon dioxide can be released in the evaporator defrosting process, the carbon dioxide can be supplemented into the storage chamber to increase the concentration of the carbon dioxide, a heating mechanism does not need to be additionally arranged for heating, and multiple purposes of the evaporator defrosting structure are achieved; the energy consumption of the refrigeration equipment is further reduced, and the user experience of the refrigeration equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to refrigeration technical field, especially a kind of refrigeration equipment. BACKGROUND

[0002] CO2 gas is a common gas with 0.04% in air. However, as one of greenhouse gases, the increase of its concentration exacerbates global warming, and if its emission is not controlled, it will cause serious consequences to human society and natural environment. Among them, the concentration of carbon dioxide has certain regulation on the life activities of plants, and the most important one is that carbon dioxide participates in the photosynthesis of plants, and plants synthesize organic matter with carbon dioxide as carbon source. Especially for fruits and vegetables in postharvest storage process, carbon dioxide also has regulation on them, and appropriate carbon dioxide concentration can improve the storage period of fruits and vegetables.

[0003] In the refrigerator for preservation using carbon dioxide in the prior art, there are two ways, one is to directly use the external carbon dioxide gas source to supply carbon dioxide, which increases the emission of carbon dioxide and also increases the use cost of users, reducing the use experience of users. The other way is to use the power-on mode to make the carbon dioxide in the air react with the preset anthraquinone compound to collect carbon dioxide, and then release carbon dioxide into the preservation chamber by power-off mode. It needs to additionally set power supply structure to realize the collection and supply of carbon dioxide, which increases the energy consumption of refrigerator and seriously affects the use experience of users. UTILITARIAN CONTENT

[0004] In order to solve the technical problem of increasing energy consumption of refrigerator caused by additional power supply structure for carbon dioxide collection and supply in the prior art, a refrigeration equipment is provided, which uses carbon dioxide adsorption mechanism to adsorb carbon dioxide at room temperature and releases carbon dioxide by using the heating effect of evaporator defrosting mechanism to reduce energy consumption.

[0005] A kind of refrigeration equipment, comprising:

[0006] A housing is formed with a storage chamber inside, and a gas passage is also formed inside the housing, and the gas passage inlet and outlet are communicated with the outside of the housing;

[0007] A carbon dioxide adsorption mechanism is arranged in the gas passage, and the carbon dioxide adsorption mechanism can adsorb carbon dioxide in the gas passage;

[0008] An evaporator defrosting mechanism is arranged on one side of the carbon dioxide adsorption mechanism, and the evaporator defrosting mechanism can heat the carbon dioxide adsorption mechanism to release carbon dioxide;

[0009] The gas passage is provided with a carbon dioxide outlet, which is in communication with the storage chamber.

[0010] The refrigeration device further comprises a carbon dioxide storage device, the carbon dioxide outlet is in communication with the carbon dioxide storage device, and the carbon dioxide storage device is in communication with the storage chamber.

[0011] The first on-off mechanism is arranged at the gas outlet, the second on-off mechanism is arranged between the carbon dioxide outlet and the carbon dioxide storage device, the third on-off mechanism is arranged between the carbon dioxide storage device and the storage chamber, and the working states of the first on-off mechanism and the second on-off mechanism are opposite.

[0012] The refrigeration device further comprises a carbon dioxide concentration detection mechanism, which can obtain the carbon dioxide concentration in the carbon dioxide storage device and the carbon dioxide concentration in the storage chamber, and the carbon dioxide concentration detection mechanism is electrically connected with the first on-off mechanism, the second on-off mechanism and the third on-off mechanism.

[0013] The refrigeration device further comprises a temperature detection mechanism, which can obtain the temperature in the carbon dioxide storage device and the temperature in the storage chamber, and the temperature detection mechanism is electrically connected with the third on-off mechanism.

[0014] The refrigeration device further comprises a first fan, a second fan and a third fan, the first fan is arranged between the carbon dioxide adsorption mechanism and the gas outlet, the second fan is arranged between the carbon dioxide storage device and the carbon dioxide outlet, and the third fan is arranged between the carbon dioxide storage device and the storage chamber.

[0015] The upper half of the carbon dioxide storage device is provided with an exhaust hole, and the exhaust hole is provided with a fourth on-off mechanism.

[0016] The refrigeration device further comprises an evaporator, which is located on one side of the carbon dioxide storage device and can exchange heat with the carbon dioxide storage device.

[0017] The refrigeration device comprises a refrigerator.

[0018] A control method of the above refrigeration device, the refrigeration device further comprises a carbon dioxide storage device, the carbon dioxide outlet is in communication with the carbon dioxide storage device, and the carbon dioxide storage device is in communication with the storage chamber, and the control method comprises:

[0019] Obtaining the carbon dioxide concentration c1 of the storage chamber and the preset carbon dioxide concentration c0;

[0020] comparing c1 and c0;

[0021] if c1 < c0, controlling the carbon dioxide storage device to be in communication with the storage chamber.

[0022] a third on-off mechanism is arranged between the carbon dioxide storage device and the storage chamber, and after comparing c1 and c0, the method further comprises:

[0023] if c1 < c0, controlling the third on-off mechanism to switch to a communication state.

[0024] after comparing c1 and c0, the method further comprises:

[0025] obtaining a real-time temperature t1 of the storage chamber and a real-time temperature t2 of the carbon dioxide storage device;

[0026] comparing t1 and t2;

[0027] if |t1-t2| > a, maintaining the carbon dioxide storage device to be disconnected from the storage chamber;

[0028] if |t1-t2| ≤ a, controlling the carbon dioxide storage device to be in communication with the storage chamber.

[0029] after if |t1-t2| > a, maintaining the carbon dioxide storage device to be disconnected from the storage chamber, the method further comprises:

[0030] after a time interval b, comparing t1 and t2 again.

[0031] a is in a range of 1℃ to 5℃.

[0032] the time interval b is in a range of 5min to 15min.

[0033] a control method of the above refrigeration equipment, the refrigeration equipment further comprising a carbon dioxide storage device, a carbon dioxide outlet being in communication with the carbon dioxide storage device, and the carbon dioxide storage device being in communication with the storage chamber, the control method comprising:

[0034] obtaining a working state of the evaporator defrosting mechanism;

[0035] if the evaporator defrosting mechanism is in a heating state, controlling the carbon dioxide outlet to be in communication with the carbon dioxide storage device, and controlling the gas outlet to be closed;

[0036] if the evaporator defrosting mechanism is in a stop heating state, controlling the carbon dioxide outlet to be disconnected from the carbon dioxide storage device, and controlling the gas outlet to be opened.

[0037] The refrigeration equipment provided by the utility model utilizes the carbon dioxide adsorption mechanism to adsorb carbon dioxide at normal temperature, overcomes the problem that carbon dioxide can only be collected by switching an additional power supply in the prior art, reduces the energy consumption and structural complexity of the refrigeration equipment, and utilizes the evaporator defrosting mechanism to heat, so that the adsorbed carbon dioxide can be released in the process of evaporator defrosting, so that the concentration of carbon dioxide can be increased by supplementing into the storage chamber, and the heating mechanism does not need to be additionally arranged for heating, the evaporator defrosting structure is multipurpose, the energy consumption of the refrigeration equipment is further reduced, and the user experience of the refrigeration equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 A refrigeration equipment structure schematic view is provided for the utility model embodiment;

[0039] Figure 2 A refrigeration equipment explosion view is provided for the utility model embodiment;

[0040] Figure 3 A gas passage and carbon dioxide adsorption mechanism structure schematic view is provided for the utility model embodiment;

[0041] Figure 4 A carbon dioxide storage device structure schematic view is provided for the utility model embodiment;

[0042] Figure 5 A storage chamber structure schematic view is provided for the utility model embodiment;

[0043] Figure 6 A refrigeration equipment control flow chart is provided for the utility model embodiment;

[0044] Figure 7 Another refrigeration equipment control flow chart is provided for the utility model embodiment;

[0045] In the drawings:

[0046] 1, storage chamber; 2, carbon dioxide adsorption mechanism; 3, gas passage; 31, air inlet; 32, air outlet; 4, evaporator defrosting mechanism; 33, carbon dioxide outlet; 5, carbon dioxide storage device; 61, carbon dioxide concentration detection mechanism; 62, temperature detection mechanism; 71, first fan; 72, second fan; 73, third fan; 8, evaporator. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical scheme and advantages of the utility model more clear and intelligible, the utility model is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0048] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0049] It should be noted that the terms "first", "second" and the like in the description of the present application and the claims and the above drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0050] It should be noted that in the description of the present application, the terms "up", "down", "left", "right", "in", "out" and the like indicate the direction or positional relationship of the terms based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0051] In addition, it should also be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] In the prior art, there are two ways to use carbon dioxide for preservation in a refrigerator. One is to directly use an external carbon dioxide gas source to supply carbon dioxide, which increases carbon dioxide emissions and increases user costs and reduces user experience. The other is to use power to make carbon dioxide in the air react with a predetermined anthraquinone compound to collect carbon dioxide, and then directly release carbon dioxide into the preservation chamber by power-off, which requires additional power supply structure to collect and supply carbon dioxide, causing increased energy consumption of the refrigerator and seriously affecting user experience.

[0053] Therefore, the present application provides a refrigeration equipment as shown in Figures 1 to 7 The present application provides a refrigeration equipment as shown in

[0054] The carbon dioxide adsorption mechanism 2 is provided with a physical adsorption material, which can adsorb and enrich carbon dioxide in the air at room temperature. When the evaporator defrosting mechanism 4 defrosts the evaporator, the heat of the evaporator defrosting mechanism 4 can heat the physical adsorption material, so that the carbon dioxide enriched by the physical adsorption material is released, and the carbon dioxide outlet 33 on the air flow channel sends the carbon dioxide into the storage chamber 1 to adjust the carbon dioxide concentration in the storage chamber 1.

[0055] Further, the refrigeration device further comprises a carbon dioxide storage device 5, the carbon dioxide outlet 33 is communicated with the carbon dioxide storage device 5, and the carbon dioxide storage device 5 is communicated with the storage chamber 1. The carbon dioxide released by the carbon dioxide adsorption mechanism 2 is stored by the carbon dioxide storage device 5, and whether the storage chamber 1 is supplemented with carbon dioxide is not controlled by whether the defrosting of the evaporator is performed. When the evaporator is not defrosted, the carbon dioxide adsorption mechanism 2 adsorbs and collects carbon dioxide, and when the evaporator is defrosted, the evaporator defrosting mechanism 4 starts heating, the carbon dioxide adsorption mechanism 2 is heated to release carbon dioxide, at this time, the carbon dioxide can be released into the carbon dioxide storage device 5 for storage, and the carbon dioxide does not need to be directly sent into the storage chamber 1. When the carbon dioxide concentration in the storage chamber 1 does not reach the set value, the carbon dioxide storage device 5 is communicated with the storage chamber 1, and the carbon dioxide is sent into the storage chamber 1, so as to achieve the adjustment of the carbon dioxide concentration in the storage chamber 1.

[0056] Specifically, the first on-off mechanism is arranged at the gas outlet 32, the second on-off mechanism is arranged between the carbon dioxide outlet 33 and the carbon dioxide storage device 5, and the third on-off mechanism is arranged between the carbon dioxide storage device 5 and the storage chamber 1. The working states of the first on-off mechanism and the second on-off mechanism are opposite. The first on-off mechanism is used to control whether the gas outlet 32 is in communication with the outside of the shell. When the carbon dioxide adsorption mechanism 2 needs to collect carbon dioxide, the first on-off mechanism is opened, so that the gas in the gas inlet 31 can enter the gas channel 3, so that the air outside the shell can enter the gas channel 3 and be collected by the carbon dioxide adsorption mechanism 2 to collect carbon dioxide, and then the gas in the gas channel 3 can be discharged through the gas outlet 32. When the carbon dioxide adsorption mechanism 2 starts to release carbon dioxide, the first on-off mechanism is closed, and the gas outlet 32 is closed. At this time, the carbon dioxide released by the carbon dioxide adsorption mechanism 2 enters the gas channel 3 and enters the storage chamber 1 or the carbon dioxide storage device 5 through the carbon dioxide outlet 33, thereby realizing reliable collection of carbon dioxide. Similarly, the second on-off mechanism can control whether the carbon dioxide outlet 33 is in communication with the carbon dioxide storage device 5. When the carbon dioxide adsorption mechanism 2 needs to collect carbon dioxide, the second on-off mechanism is closed, so that the carbon dioxide outlet 33 is disconnected from the carbon dioxide storage device 5. At this time, the gas in the gas channel 3 can be smoothly discharged through the gas outlet 32 without entering the carbon dioxide storage device 5 to affect the concentration of carbon dioxide in the carbon dioxide storage device 5. When the carbon dioxide adsorption mechanism 2 starts to release carbon dioxide, the second on-off mechanism is opened, and the carbon dioxide outlet 33 is in communication with the carbon dioxide storage device 5. At this time, the carbon dioxide released by the carbon dioxide adsorption mechanism 2 enters the gas channel 3 and enters the storage chamber 1 or the carbon dioxide storage device 5 through the carbon dioxide outlet 33, thereby realizing reliable collection of carbon dioxide. The third on-off mechanism can control whether the carbon dioxide storage device 5 is in communication with the storage chamber 1. When the storage chamber 1 needs to supplement carbon dioxide, the third on-off mechanism is opened, and the carbon dioxide storage device 5 can enter the storage chamber 1 to supplement the concentration of carbon dioxide. When the storage chamber 1 does not need to supplement carbon dioxide, the third on-off mechanism is closed to separate the carbon dioxide storage device 5 and the storage chamber 1.

[0057] The refrigeration equipment further comprises a carbon dioxide concentration detection mechanism 61 capable of acquiring the carbon dioxide concentration in the carbon dioxide storage device 5 and the carbon dioxide concentration in the storage chamber 1, and the carbon dioxide concentration detection mechanism 61 is electrically connected with the first on-off mechanism, the second on-off mechanism and the third on-off mechanism. The carbon dioxide concentration in the storage chamber 1 is detected by the carbon dioxide concentration detection mechanism 61, and then it is judged whether the carbon dioxide in the storage chamber 1 needs to be supplemented. When the carbon dioxide needs to be supplemented, the carbon dioxide concentration detection mechanism 61 can control the first on-off mechanism, the second on-off mechanism and the third on-off mechanism, so as to realize the ability of automatically supplementing the carbon dioxide in the storage chamber 1. Similarly, the carbon dioxide concentration detection mechanism 61 can also detect the carbon dioxide concentration in the carbon dioxide storage device 5, so as to judge whether the carbon dioxide in the carbon dioxide storage device 5 needs to be supplemented. When the carbon dioxide needs to be supplemented, the carbon dioxide concentration detection mechanism 61 can control the first on-off mechanism, the second on-off mechanism and the third on-off mechanism, so as to realize the ability of automatically supplementing the carbon dioxide in the storage chamber 1.

[0058] The refrigeration equipment further comprises a temperature detection mechanism 62 capable of acquiring the temperature in the carbon dioxide storage device 5 and the temperature in the storage chamber 1, and the temperature detection mechanism 62 is electrically connected with the third on-off mechanism. Since the storage chamber 1 needs to refrigerate the goods stored therein, the temperature in the storage chamber 1 is relatively low, generally between 0℃ and 5℃. The carbon dioxide in the carbon dioxide storage device 5 is released by the heating of the carbon dioxide adsorption mechanism 2 by the evaporator defrosting mechanism 4, so the temperature of the carbon dioxide in the carbon dioxide storage device 5 can be relatively high. In order to avoid the influence of the supplemented carbon dioxide on the temperature of the storage chamber 1, the temperature detection mechanism 62 is used to compare the temperature in the carbon dioxide storage device 5 and the temperature in the storage chamber 1, and control the third on-off mechanism according to the comparison result, so as to ensure the storage and preservation effect of the storage chamber 1.

[0059] The refrigeration equipment further comprises a first fan 71, a second fan 72 and a third fan 73, the first fan 71 is arranged between the carbon dioxide adsorption mechanism 2 and the air outlet 32, the second fan 72 is arranged between the carbon dioxide storage device 5 and the carbon dioxide outlet 33, and the third fan 73 is arranged between the carbon dioxide storage device 5 and the storage chamber 1. The first fan 71 drives the gas outside the shell to enter the gas channel 3 through the air inlet 31, the second fan 72 drives the carbon dioxide in the gas channel 3 to enter the carbon dioxide storage device 5, and the third fan 73 drives the carbon dioxide in the carbon dioxide storage device 5 to enter the storage chamber 1. The first fan 71, the second fan 72 and the third fan 73 drive the gas or the carbon dioxide, ensure the reliability of supplementing the carbon dioxide in the storage chamber 1, and especially the cooperation of the first fan 71, the second fan 72, the third fan 73, the first on-off mechanism, the second on-off mechanism and the third on-off mechanism ensures the working reliability of the refrigeration equipment.

[0060] The upper half of the carbon dioxide storage device 5 is provided with an exhaust hole, and the fourth on-off mechanism is arranged at the exhaust hole. When the third on-off mechanism is closed, the fourth on-off mechanism is opened. When the carbon dioxide outlet 33 sends carbon dioxide into the carbon dioxide storage device 5, the exhaust hole can exhaust the gas in the carbon dioxide storage device 5. Since the density of carbon dioxide is greater than that of air, the exhaust hole is arranged at the upper half of the carbon dioxide storage device 5 to avoid the carbon dioxide being exhausted from the carbon dioxide storage device 5.

[0061] The refrigeration equipment further comprises an evaporator 8, which is located on one side of the carbon dioxide storage device 5 and can exchange heat with the carbon dioxide storage device 5. The temperature of the evaporator 8 can cool the carbon dioxide in the carbon dioxide storage device 5, so that the carbon dioxide in the carbon dioxide storage device 5 can be quickly matched with the temperature in the storage chamber 1, thereby quickly supplementing the carbon dioxide.

[0062] The refrigeration equipment comprises a refrigerator, and the refrigerator has a drawer which constitutes the storage chamber 1.

[0063] A control method of the refrigeration equipment, the refrigeration equipment further comprises a carbon dioxide storage device 5, the carbon dioxide outlet 33 communicates with the carbon dioxide storage device 5, and the carbon dioxide storage device 5 communicates with the storage chamber 1, and the control method comprises:

[0064] Obtaining the carbon dioxide concentration c1 of the storage chamber 1 and the preset carbon dioxide concentration c0;

[0065] Comparing c1 and c0;

[0066] If c1 < c0, the carbon dioxide storage device 5 is controlled to be in communication with the storage chamber 1, and carbon dioxide is added to the storage chamber 1. Preferably, c0 is in the range of 5% to 10%.

[0067] The third on-off mechanism is provided between the carbon dioxide storage device 5 and the storage chamber 1. After comparing c1 and c0, the method further comprises:

[0068] If c1 < c0, the third on-off mechanism is switched to the communication state, so that the carbon dioxide in the carbon dioxide storage device 5 can enter the storage chamber 1, thereby achieving the purpose of maintaining the carbon dioxide concentration in the storage chamber 1.

[0069] After comparing c1 and c0, the method further comprises:

[0070] The real-time temperature t1 of the storage chamber 1 and the real-time temperature t2 of the carbon dioxide storage device 5 are obtained.

[0071] t1 and t2 are compared. Since the storage chamber 1 needs to refrigerate the items stored therein, the temperature in the storage chamber 1 is relatively low, generally between 0°C and 5°C. The carbon dioxide in the carbon dioxide storage device 5 is released by the heating of the carbon dioxide adsorption mechanism 2 by the defroster mechanism 4 of the evaporator, so the temperature of the carbon dioxide in the carbon dioxide storage device 5 can be relatively high. In order to avoid the influence of the added carbon dioxide on the temperature of the storage chamber 1, the temperature detection mechanism 62 is used to compare the temperature in the carbon dioxide storage device 5 and the temperature in the storage chamber 1, and the third on-off mechanism is controlled according to the comparison result, thereby ensuring the storage and preservation effect of the storage chamber 1.

[0072] That is, if |t1-t2| > a, the carbon dioxide storage device 5 is kept disconnected from the storage chamber 1.

[0073] If |t1-t2| ≤ a, the carbon dioxide storage device 5 is controlled to be in communication with the storage chamber 1.

[0074] After the carbon dioxide storage device 5 is kept disconnected from the storage chamber 1 if |t1-t2| > a, the method further comprises:

[0075] After the time interval b, t1 and t2 are compared again.

[0076] a is in the range of 1°C to 5°C, and is preferably 2°.

[0077] The time interval b is in the range of 5 min to 15 min, and is preferably 10 min.

[0078] A control method of the above refrigeration device, the refrigeration device further comprising a carbon dioxide storage device 5, the carbon dioxide outlet 33 is communicated with the carbon dioxide storage device 5, and the carbon dioxide storage device 5 is communicated with the storage chamber 1, the control method comprising:

[0079] Acquiring the working state of the evaporator defrosting mechanism 4;

[0080] If the evaporator defrosting mechanism 4 is in the heating state, it indicates that the carbon dioxide adsorption mechanism 2 is in the heated state at this time, which will release carbon dioxide, then the carbon dioxide outlet 33 is controlled to be communicated with the carbon dioxide storage device 5, and the gas outlet 32 is controlled to be closed, at this time, the carbon dioxide released by the carbon dioxide adsorption mechanism 2 enters the gas passage 3 and enters the storage chamber 1 or the carbon dioxide storage device 5 through the carbon dioxide outlet 33, thereby realizing reliable collection of carbon dioxide;

[0081] If the evaporator defrosting mechanism 4 is in the stop heating state, the carbon dioxide outlet 33 is controlled to be disconnected with the carbon dioxide storage device 5, and the gas outlet 32 is controlled to be opened, so that the gas of the gas inlet 31 can enter the gas passage 3, so that the air outside the shell can enter the gas passage 3 and be collected by the carbon dioxide adsorption mechanism 2, and then the gas in the gas passage 3 can be discharged through the gas outlet 32.

[0082] The above-mentioned embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A refrigeration appliance characterized by: The application relates to a refrigeration device comprising: a shell, a storage chamber (1) formed in the shell, and a gas passage (3) formed in the shell, the gas passage (3) being communicated with the outside of the shell through an air inlet (31) and an air outlet (32); a carbon dioxide adsorption mechanism (2) arranged in the gas passage (3) and capable of adsorbing carbon dioxide in the gas passage (3); an evaporator defrosting mechanism (4) arranged on one side of the carbon dioxide adsorption mechanism (2) and capable of heating the carbon dioxide adsorption mechanism (2) to release carbon dioxide from the carbon dioxide adsorption mechanism (2); a carbon dioxide outlet (33) arranged on the gas passage (3) and communicated with the storage chamber (1).

2. The refrigeration appliance of claim 1, wherein: The refrigeration device further comprises a carbon dioxide storage device (5), the carbon dioxide outlet (33) is communicated with the carbon dioxide storage device (5), and the carbon dioxide storage device (5) is communicated with the storage chamber (1).

3. The refrigeration appliance of claim 2, wherein: A first on-off mechanism is arranged at the air outlet (32), a second on-off mechanism is arranged between the carbon dioxide outlet (33) and the carbon dioxide storage device (5), a third on-off mechanism is arranged between the carbon dioxide storage device (5) and the storage chamber (1), and the working states of the first on-off mechanism and the second on-off mechanism are opposite.

4. The refrigeration appliance of claim 3, wherein: The refrigeration device further comprises a carbon dioxide concentration detection mechanism (61) capable of obtaining the carbon dioxide concentration in the carbon dioxide storage device (5) and the carbon dioxide concentration in the storage chamber (1), and the carbon dioxide concentration detection mechanism (61) is electrically connected with the first on-off mechanism, the second on-off mechanism and the third on-off mechanism.

5. The refrigeration appliance of claim 3, wherein: The refrigeration device further comprises a temperature detection mechanism (62) capable of obtaining the temperature in the carbon dioxide storage device (5) and the temperature in the storage chamber (1), and the temperature detection mechanism (62) is electrically connected with the third on-off mechanism.

6. The refrigeration appliance of claim 2, wherein: The refrigeration device further comprises a first fan (71), a second fan (72) and a third fan (73), the first fan (71) is arranged between the carbon dioxide adsorption mechanism (2) and the air outlet (32), the second fan (72) is arranged between the carbon dioxide storage device (5) and the carbon dioxide outlet (33), and the third fan (73) is arranged between the carbon dioxide storage device (5) and the storage chamber (1).

7. The refrigeration appliance of claim 2, wherein: An exhaust hole is arranged on the upper half of the carbon dioxide storage device (5), and a fourth on-off mechanism is arranged at the exhaust hole.

8. The refrigeration appliance of claim 2, wherein: The refrigeration device further comprises an evaporator (8) arranged on one side of the carbon dioxide storage device (5) and capable of exchanging heat with the carbon dioxide storage device (5).

9. The refrigeration appliance of claim 1, wherein: The refrigeration device is a refrigerator.

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