Refrigeration equipment and control method thereof

Abstract

The invention provides refrigeration equipment and a control method thereof. 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 and the control method thereof, the carbon dioxide adsorption mechanism is used for adsorbing carbon dioxide at the normal temperature, the problem that in the prior art, carbon dioxide can be collected only by using additional power supply on-off is solved, the energy consumption and the structural complexity of the refrigeration equipment are reduced, and the cost is 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 present invention relates to the field of refrigeration technology, in particular to a refrigeration device and a control method thereof. Background Art

[0002] CO2 gas is a common gas that accounts for 0.04% of the air. However, as one of the greenhouse gases, the increase in CO2 concentration has exacerbated global warming. If its emissions are not controlled, it will have serious consequences for human society and the natural environment. Among them, the concentration of carbon dioxide has a certain regulatory effect on the life activities of plants. The most important of these is that carbon dioxide participates in plant photosynthesis. Plants use carbon dioxide as a carbon source to synthesize organic matter. Especially for fruits and vegetables in the post-harvest storage process, carbon dioxide also has a regulatory effect on them. The appropriate concentration of carbon dioxide can increase the storage period of fruits and vegetables.

[0003] In the prior art, there are two ways to use carbon dioxide to preserve food in refrigerators. One is to directly use an external carbon dioxide gas source to supply carbon dioxide, which increases the emission of carbon dioxide, increases the user's usage cost, and reduces the user's usage experience; the other is to use electricity to make the carbon dioxide in the air react with preset anthraquinone compounds to collect the carbon dioxide, and then directly release the carbon dioxide into the preservation chamber by cutting off the power. It requires an additional power supply structure to realize the collection and supply of carbon dioxide, which causes the problem of increased energy consumption of the refrigerator and seriously affects the user's usage experience. Summary of the invention

[0004] In order to solve the technical problem in the prior art that an additional power supply structure is needed to realize the collection and supply of carbon dioxide, which causes an increase in the energy consumption of the refrigerator, a refrigeration device and a control method thereof are provided, which utilize a carbon dioxide adsorption mechanism to adsorb carbon dioxide at room temperature and utilize the heating effect of an evaporator defrost mechanism to release carbon dioxide to reduce energy consumption.

[0005] A refrigeration device, comprising:

[0006] A housing, wherein a storage chamber is formed in the housing, and a gas passage is also formed in the housing, wherein an air inlet and an air outlet of the gas passage are both in communication with the outside of the housing;

[0007] a carbon dioxide adsorption mechanism, wherein the carbon dioxide adsorption mechanism is disposed in the gas passage and is capable of adsorbing carbon dioxide in the gas passage;

[0008] an evaporator defrosting mechanism, the evaporator defrosting mechanism being arranged at one side of the carbon dioxide adsorption mechanism, and the evaporator defrosting mechanism being capable of heating the carbon dioxide adsorption mechanism so that the carbon dioxide adsorption mechanism releases carbon dioxide;

[0009] The gas channel is provided with a carbon dioxide outlet, and the carbon dioxide outlet is communicated with the storage chamber.

[0010] The refrigeration equipment further includes 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] A first on-off mechanism is provided at the gas outlet, a second on-off mechanism is provided between the carbon dioxide outlet and the carbon dioxide storage device, and a third on-off mechanism is provided between the carbon dioxide storage device and the storage chamber. The working states of the first on-off mechanism and the second on-off mechanism are opposite.

[0012] The refrigeration equipment also includes 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 to the first on-off mechanism, the second on-off mechanism and the third on-off mechanism.

[0013] The refrigeration device further includes 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 to the third on-off mechanism.

[0014] The refrigeration equipment also includes a first fan, a second fan and a third fan, the first fan is arranged between the carbon dioxide adsorption mechanism and the air 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] An exhaust hole is arranged on the upper half of the carbon dioxide storage device, and a fourth on-off mechanism is arranged at the exhaust hole.

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

[0017] The refrigeration equipment includes a refrigerator.

[0018] A control method for the above-mentioned refrigeration equipment, wherein the refrigeration equipment further comprises a carbon dioxide storage device, the carbon dioxide outlet is connected to the carbon dioxide storage device, and the carbon dioxide storage device is connected to the storage chamber, and the control method comprises:

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

[0020] Compare c1 and c0;

[0021] If c1<c0, the carbon dioxide storage device is controlled to communicate with the storage chamber.

[0022] A third on-off mechanism is provided between the carbon dioxide storage device and the storage chamber, and after comparing c1 and c0, further comprising:

[0023] If c1<c0, the third on-off mechanism is controlled to switch to the connected state.

[0024] After comparing c1 and c0, also include:

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

[0026] Compare t1 and t2;

[0027] If |t1-t2|>a, the carbon dioxide storage device is kept disconnected from the storage chamber;

[0028] If |t1-t2|≤a, the carbon dioxide storage device is controlled to be connected to the storage chamber.

[0029] If |t1-t2|>a, then the carbon dioxide storage device is disconnected from the storage chamber, further comprising:

[0030] After a time interval b, t1 and t2 are compared again.

[0031] The value range of a is 1℃ to 5℃.

[0032] The time interval b ranges from 5 minutes to 15 minutes.

[0033] A control method for the above-mentioned refrigeration equipment, wherein the refrigeration equipment further comprises a carbon dioxide storage device, the carbon dioxide outlet is connected to the carbon dioxide storage device, and the carbon dioxide storage device is connected to the storage chamber, and the control method comprises:

[0034] Obtaining the working state of the evaporator defrosting mechanism;

[0035] If the evaporator defrosting mechanism is in a heating state, the carbon dioxide outlet is controlled to be connected to the carbon dioxide storage device, and the gas outlet is controlled to be closed;

[0036] If the evaporator defrosting mechanism is in a state of stopping heating, the carbon dioxide outlet is controlled to be disconnected from the carbon dioxide storage device, and the air outlet is controlled to be opened.

[0037] The refrigeration equipment and the control method thereof provided by the present invention utilize a carbon dioxide adsorption mechanism to adsorb carbon dioxide at room temperature, thereby overcoming the problem in the prior art that an additional power supply needs to be turned on and off to collect carbon dioxide, reducing the energy consumption and structural complexity of the refrigeration equipment, and utilizing an evaporator defrost mechanism for heating, so that the adsorbed carbon dioxide can be released during the defrosting process of the evaporator, so that it can be replenished into the storage chamber to increase the concentration of carbon dioxide, and no additional heating mechanism is required for heating, thereby realizing the multi-purpose use of the evaporator defrost structure, further reducing the energy consumption of the refrigeration equipment, and improving the user experience of the refrigeration equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A schematic diagram of the structure of a refrigeration device provided in an embodiment of the present invention;

[0039] Figure 2 An exploded diagram of a refrigeration device provided by an embodiment of the present invention;

[0040] Figure 3 A schematic diagram of the structure of a gas channel and a carbon dioxide adsorption mechanism provided in an embodiment of the present invention;

[0041] Figure 4 A schematic diagram of the structure of a carbon dioxide storage device provided in an embodiment of the present invention;

[0042] Figure 5 A schematic diagram of the structure of a storage chamber provided by an embodiment of the present invention;

[0043] Figure 6 A control flow chart of a refrigeration device provided by an embodiment of the present invention;

[0044] Figure 7 Another control flow chart of the refrigeration equipment provided by the embodiment of the present invention;

[0045] In the figure:

[0046] 1. Storage chamber; 2. Carbon dioxide adsorption mechanism; 3. Gas channel; 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 solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0048] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0049] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so as to describe the embodiments of the present invention described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0050] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do 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 limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0051] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" 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, an indirect connection through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In the prior art, there are two ways to use carbon dioxide to preserve food in refrigerators. One is to directly use an external carbon dioxide gas source to supply carbon dioxide, which increases the emission of carbon dioxide, increases the user's usage cost, and reduces the user's usage experience; the other is to use electricity to make the carbon dioxide in the air react with preset anthraquinone compounds to collect the carbon dioxide, and then directly release the carbon dioxide into the preservation chamber by cutting off the power. It requires an additional power supply structure to realize the collection and supply of carbon dioxide, which causes the problem of increased energy consumption of the refrigerator and seriously affects the user's usage experience.

[0053] To this end, the present application provides a Figures 1 to 7 The refrigeration equipment shown includes: a shell, a storage chamber 1 is formed in the shell, and a gas channel 3 is also formed in the shell, and the air inlet 31 and the air outlet 32 ​​of the gas channel 3 are both connected to the outside of the shell; a carbon dioxide adsorption mechanism 2, the carbon dioxide adsorption mechanism 2 is arranged in the gas channel 3, and the carbon dioxide adsorption mechanism 2 can adsorb the carbon dioxide in the gas channel 3; an evaporator defrost mechanism 4, the evaporator defrost mechanism 4 is arranged on one side of the carbon dioxide adsorption mechanism 2, and the evaporator defrost mechanism 4 can heat the carbon dioxide adsorption mechanism 2 so that the carbon dioxide adsorption mechanism 2 releases carbon dioxide; a carbon dioxide outlet 33 is arranged on the gas channel 3, and the carbon dioxide outlet 33 is connected to the storage chamber 1. The carbon dioxide adsorption mechanism 2 is used to adsorb carbon dioxide at room temperature, which overcomes the problem in the prior art that an additional power supply needs to be turned on and off to collect carbon dioxide, reduces the energy consumption and structural complexity of the refrigeration equipment, and uses the evaporator defrost mechanism 4 for heating, so that the adsorbed carbon dioxide can be released during the evaporator defrosting process, so that it can be replenished in the storage chamber 1 to increase the concentration of carbon dioxide. There is no need to set up an additional heating mechanism for heating, thereby realizing the multi-purpose use of the evaporator defrost structure, further reducing the energy consumption of the refrigeration equipment, and improving the user experience of the refrigeration equipment.

[0054] Among them, a physical adsorption material is arranged in the carbon dioxide adsorption mechanism 2, which can adsorb and enrich carbon dioxide in the air at room temperature. Then, when the evaporator defrost mechanism 4 defrosts the evaporator, the heat of the evaporator defrost mechanism 4 can heat the physical adsorption material, thereby releasing the carbon dioxide enriched in the physical heating material, and delivering the carbon dioxide into the storage chamber 1 through the carbon dioxide outlet 33 on the air flow channel to adjust the carbon dioxide concentration in the storage chamber 1.

[0055] Furthermore, the refrigeration device further comprises a carbon dioxide storage device 5, the carbon dioxide outlet 33 is connected to the carbon dioxide storage device 5, and the carbon dioxide storage device 5 is connected to the storage chamber 1. The carbon dioxide storage device 5 is used to store the carbon dioxide released by the carbon dioxide adsorption mechanism 2. At this time, whether the storage chamber 1 is replenished with carbon dioxide will not be controlled by whether the evaporator is defrosted. When the evaporator is not defrosted, the carbon dioxide adsorption mechanism 2 adsorbs and collects carbon dioxide. When the evaporator is defrosted, the evaporator defrost mechanism 4 starts to heat, and the carbon dioxide adsorption mechanism 2 is heated to release carbon dioxide. At this time, carbon dioxide can be released into the carbon dioxide storage device 5 for accumulation, and it is not necessary to directly send this carbon dioxide 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 connected to the storage chamber 1, and carbon dioxide is sent into the storage chamber 1 to adjust the carbon dioxide concentration in the storage chamber 1.

[0056] Specifically, a first on-off mechanism is provided at the gas outlet 32, a second on-off mechanism is provided between the carbon dioxide outlet 33 and the carbon dioxide storage device 5, and a third on-off mechanism is provided 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. The first on-off mechanism is used to control whether the gas outlet 32 ​​is connected to 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 at 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. 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 connected to 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, and will not enter the carbon dioxide storage device 5 to affect the carbon dioxide concentration 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 connected to 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 connected to 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 carbon dioxide concentration. 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 from the storage chamber 1.

[0057] The refrigeration equipment further includes a carbon dioxide concentration detection mechanism 61, which can obtain 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 to the first on-off mechanism, the second on-off mechanism and the third on-off mechanism. The carbon dioxide concentration detection mechanism 61 is used to detect the carbon dioxide concentration in the storage chamber 1, and then determine whether the storage chamber 1 needs to be supplemented with carbon dioxide. When 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 to achieve the ability to automatically supplement 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 determine whether the carbon dioxide storage device 5 needs to be supplemented with carbon dioxide. When 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 to achieve the ability to automatically supplement carbon dioxide in the storage chamber 1.

[0058] The refrigeration device further includes a temperature detection mechanism 62, which can obtain 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 to the third on-off mechanism. 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, and 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 may be relatively high. In order to avoid the influence of the carbon dioxide added to the storage chamber 1 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 with the temperature in the storage chamber 1, and the third on-off mechanism is controlled according to the comparison result to ensure the storage and preservation effect of the storage chamber 1.

[0059] The refrigeration device further comprises a first fan 71, a second fan 72 and a third fan 73, wherein the first fan 71 is arranged between the carbon dioxide adsorption mechanism 2 and the gas 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 is used to drive the gas outside the housing to enter the gas channel 3 through the gas inlet 31, the second fan 72 can drive the carbon dioxide in the gas channel 3 to enter the carbon dioxide storage device 5, and the third fan 73 can drive 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 are used to drive the gas or carbon dioxide to ensure the reliability of replenishing carbon dioxide in the storage chamber 1, especially the first fan 71, the second fan 72 and the third fan 73 cooperate with the first on-off mechanism, the second on-off mechanism and the third on-off mechanism to ensure the working reliability of the refrigeration device.

[0060] An exhaust hole is provided on the upper half of the carbon dioxide storage device 5, and a fourth on-off mechanism is provided at the exhaust hole. When the third on-off mechanism is closed, the fourth on-off mechanism is opened. At this time, when the carbon dioxide outlet 33 delivers carbon dioxide into the carbon dioxide storage device 5, the exhaust hole can discharge the gas in the carbon dioxide storage device 5. Since the density of carbon dioxide is greater than the density of air, the exhaust hole is set in the upper half of the carbon dioxide storage device 5 to prevent carbon dioxide from being discharged from the carbon dioxide storage device 5.

[0061] The refrigeration equipment also includes an evaporator 8, which is located on one side of the carbon dioxide storage device 5, and the evaporator 8 can exchange heat with the carbon dioxide storage device 5, and use the temperature of the evaporator 8 to 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 matched with the temperature in the storage chamber 1 as soon as possible, so that the carbon dioxide can be replenished as soon as possible.

[0062] The refrigeration device comprises a refrigerator having a drawer, and the drawer constitutes the storage chamber 1 .

[0063] A control method for the above-mentioned refrigeration equipment, wherein the refrigeration equipment further comprises a carbon dioxide storage device 5, the carbon dioxide outlet 33 is connected to the carbon dioxide storage device 5, and the carbon dioxide storage device 5 is connected to the storage chamber 1, and the control method comprises:

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

[0065] Compare c1 and c0;

[0066] If c1<c0, the carbon dioxide storage device 5 is controlled to communicate with the storage chamber 1 to add carbon dioxide into the storage chamber 1. Preferably, the value range of c0 is 5% to 10%.

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

[0068] If c1<c0, the third on-off mechanism is controlled to switch to the connected state, and the carbon dioxide in the carbon dioxide storage device 5 can enter the storage chamber 1 at this time, so as to achieve the purpose of maintaining the carbon dioxide concentration in the storage chamber 1.

[0069] After comparing c1 and c0, also include:

[0070] Obtaining the real-time temperature t1 of the storage chamber 1 and the real-time temperature t2 of the carbon dioxide storage device 5;

[0071] Comparing t1 and t2, 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, and 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. Therefore, the temperature of the carbon dioxide in the carbon dioxide storage device 5 may be relatively high. In order to avoid the carbon dioxide added to the storage chamber 1 from affecting 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 with the temperature in the storage chamber 1, and the third on-off mechanism is controlled according to the comparison result to ensure 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 communicate with the storage chamber 1.

[0074] If |t1-t2|>a, then the carbon dioxide storage device 5 is disconnected from the storage chamber 1, further comprising:

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

[0076] The value range of a is 1°C to 5°C, preferably 2°.

[0077] The time interval b ranges from 5 min to 15 min, preferably 10 min.

[0078] A control method for the above-mentioned refrigeration equipment, wherein the refrigeration equipment further comprises a carbon dioxide storage device 5, the carbon dioxide outlet 33 is connected to the carbon dioxide storage device 5, and the carbon dioxide storage device 5 is connected to the storage chamber 1, and the control method comprises:

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

[0080] If the evaporator defrosting mechanism 4 is in a heating state, indicating that the carbon dioxide adsorption mechanism 2 is in a heated state and will release carbon dioxide, the carbon dioxide outlet 33 is controlled to be connected to 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 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;

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

[0082] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A refrigeration device, characterized in that: include: A shell, a storage chamber (1) is formed in the shell, a gas channel (3) is also formed in the shell, and an air inlet (31) and an air outlet (32) of the gas channel (3) are both connected to the outside of the shell; A carbon dioxide adsorption mechanism (2), wherein the carbon dioxide adsorption mechanism (2) is arranged in the gas channel (3), and the carbon dioxide adsorption mechanism (2) is capable of adsorbing carbon dioxide in the gas channel (3); an evaporator defrosting mechanism (4), the evaporator defrosting mechanism (4) being arranged on one side of the carbon dioxide adsorption mechanism (2), and the evaporator defrosting mechanism (4) being capable of heating the carbon dioxide adsorption mechanism (2) so that the carbon dioxide adsorption mechanism (2) releases carbon dioxide; The gas channel (3) is provided with a carbon dioxide outlet (33), and the carbon dioxide outlet (33) is communicated with the storage chamber (1).

2. The refrigeration equipment according to claim 1, characterized in that: The refrigeration device further comprises a carbon dioxide storage device (5), the carbon dioxide outlet (33) is in communication with the carbon dioxide storage device (5), and the carbon dioxide storage device (5) is in communication with the storage chamber (1).

3. The refrigeration device according to claim 2, characterized in that: A first on-off mechanism is provided at the gas outlet (32), a second on-off mechanism is provided between the carbon dioxide outlet (33) and the carbon dioxide storage device (5), and a third on-off mechanism is provided 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 device according to claim 3, characterized in that: The refrigeration equipment further comprises a carbon dioxide concentration detection mechanism (61), wherein the carbon dioxide concentration detection mechanism (61) is 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 to the first on-off mechanism, the second on-off mechanism and the third on-off mechanism.

5. The refrigeration equipment according to claim 3, characterized in that: The refrigeration device further comprises a temperature detection mechanism (62), wherein the temperature detection mechanism (62) is capable of acquiring the temperature inside the carbon dioxide storage device (5) and the temperature inside the storage chamber (1), and the temperature detection mechanism (62) is electrically connected to the third on-off mechanism.

6. The refrigeration device according to claim 2, characterized in that: The refrigeration device further comprises a first fan (71), a second fan (72) and a third fan (73), wherein 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 device according to claim 2, characterized in that: An exhaust hole is provided on the upper half of the carbon dioxide storage device (5), and a fourth on-off mechanism is provided at the exhaust hole.

8. The refrigeration device according to claim 2, characterized in that: The refrigeration device further comprises an evaporator (8), wherein the evaporator (8) is located on one side of the carbon dioxide storage device (5), and the evaporator (8) is capable of exchanging heat with the carbon dioxide storage device (5).

9. The refrigeration device according to claim 1, characterized in that: The refrigeration equipment includes a refrigerator.

10. A control method for a refrigeration device according to any one of claims 1 to 9, characterized in that: The refrigeration device further comprises a carbon dioxide storage device (5), the carbon dioxide outlet (33) is in communication with the carbon dioxide storage device (5), and the carbon dioxide storage device (5) is in communication with the storage chamber (1), and the control method comprises: Obtaining a carbon dioxide concentration c1 and a preset carbon dioxide concentration c0 in the storage chamber (1); Compare c1 and c0; If c1<c0, the carbon dioxide storage device (5) is controlled to communicate with the storage chamber (1).

11. The control method of refrigeration equipment according to claim 10, characterized in that: A third on-off mechanism is provided between the carbon dioxide storage device (5) and the storage chamber (1), and after comparing c1 and c0, further comprises: If c1<c0, the third on-off mechanism is controlled to switch to the connected state.

12. The control method of refrigeration equipment according to claim 10, characterized in that: After comparing c1 and c0, also include: Obtaining the real-time temperature t1 of the storage chamber (1) and the real-time temperature t2 of the carbon dioxide storage device (5); Compare t1 and t2; If |t1-t2|>a, the carbon dioxide storage device (5) is kept disconnected from the storage chamber (1); If |t1-t2|≤a, the carbon dioxide storage device (5) is controlled to be in communication with the storage chamber (1).

13. The control method of refrigeration equipment according to claim 12, characterized in that: If |t1-t2|>a, then the carbon dioxide storage device (5) is disconnected from the storage chamber (1), further comprising: After a time interval b, t1 and t2 are compared again.

14. The control method of refrigeration equipment according to claim 12, characterized in that: The value range of a is 1℃ to 5℃.

15. The control method of refrigeration equipment according to claim 13, characterized in that: The time interval b ranges from 5 minutes to 15 minutes.

16. A control method for a refrigeration device according to any one of claims 1 to 9, characterized in that: The refrigeration device further comprises a carbon dioxide storage device (5), the carbon dioxide outlet (33) is in communication with the carbon dioxide storage device (5), and the carbon dioxide storage device (5) is in communication with the storage chamber (1), and the control method comprises: Obtaining the working state of the evaporator defrosting mechanism (4); If the evaporator defrosting mechanism (4) is in a heating state, the carbon dioxide outlet (33) is controlled to be connected to the carbon dioxide storage device (5), and the gas outlet (32) is controlled to be closed; If the evaporator defrosting mechanism (4) is in a state of stopping heating, the carbon dioxide outlet (33) is controlled to be disconnected from the carbon dioxide storage device (5), and the air outlet (32) is controlled to be opened.

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