Refrigeration equipment

Abstract

The invention provides refrigeration equipment which comprises an oxygen adjusting module, an oxygen adjusting gas circuit and an oxygen adjusting container, and the oxygen adjusting gas circuit communicates with the oxygen adjusting module and the oxygen adjusting container and is used for conveying gas flow generated by the oxygen adjusting module into the oxygen adjusting container; the oxygen adjusting container comprises an inner shell and an outer shell, a hollow cavity is formed between the inner shell and the outer shell, and the hollow cavity is filled with cold storage materials. According to the refrigeration equipment, the wall of the oxygen adjusting container is arranged to be the interlayer, and the cold storage material is arranged in the interlayer to cool the interior of the oxygen adjusting container.

Description

Technical Field

[0001] This application relates to the field of refrigeration equipment technology, and in particular to a refrigeration equipment equipped with an oxygen regulation module. Background Technology

[0002] In refrigerators with modified atmosphere (MAP) function, the MAP module generates heat during operation, causing the storage space temperature to drop slowly or even rise. Existing solutions prevent the MAP module from starting when the detected temperature value is higher than or equal to the temperature threshold. While this control scheme reduces the impact on the storage space temperature, it is not conducive to maintaining the gas composition within the storage space, thereby reducing the preservation effect. Summary of the Invention

[0003] The purpose of this application is to provide a refrigeration device in which the wall of the oxygen-regulating container receiving the oxygen-regulating module is set as a sandwich layer, and a cold storage material is set in the sandwich layer to cool down the high-temperature gas generated by the oxygen-regulating module, thereby solving the problem in the prior art that the gas composition is affected by temperature, thus reducing the preservation effect.

[0004] To achieve one of the above-mentioned objectives, one embodiment of this application provides a refrigeration device, including an oxygen regulating module, an oxygen regulating circuit, and an oxygen regulating container. The oxygen regulating circuit connects the oxygen regulating module and the oxygen regulating container to deliver the airflow generated by the oxygen regulating module to the oxygen regulating container. The oxygen regulating container includes an inner shell and an outer shell, and a hollow cavity is formed between the inner shell and the outer shell. The hollow cavity is filled with a cold storage material.

[0005] As a further improvement of one embodiment of this application, it also includes an oxygen conditioning chamber connected to the oxygen conditioning container, and the oxygen conditioning circuit also connects the oxygen conditioning container and the oxygen conditioning chamber. The airflow generated by the oxygen conditioning module enters the oxygen conditioning chamber after being cooled by the oxygen conditioning container.

[0006] As a further improvement of one embodiment of this application, it also includes a first drawer assembly, the first drawer assembly including a first cylinder with an opening facing forward, a first drawer disposed in the first cylinder and a cover disposed on the top of the first drawer, the first drawer including a first front cover, the first front cover completely covering the front opening of the first cylinder, and the first drawer and the cover forming the oxygen conditioning chamber.

[0007] As a further improvement of one embodiment of this application, the oxygen conditioning circuit is connected to the oxygen conditioning chamber; the refrigeration equipment further includes a refrigeration system, which is connected to the cavity formed by the first cylinder, the first drawer and the cover.

[0008] As a further improvement of one embodiment of this application, the oxygen regulating circuit is connected to the cavity formed by the first cylinder, the first drawer and the cover; the cover is provided with an oxygen regulating through hole, and the oxygen regulating through hole is covered with an oxygen-permeable membrane; the refrigeration equipment also includes a refrigeration system, and the refrigeration system is connected to the oxygen regulating chamber.

[0009] As a further improvement of one embodiment of this application, a second drawer assembly is also included. The second drawer assembly includes a second cylinder with an opening facing forward and a second drawer disposed within the second cylinder. The second drawer includes a second front cover that completely covers the front opening of the second cylinder. The oxygen-regulating chamber is formed between the second cylinder and the second front cover.

[0010] As a further improvement of one embodiment of this application, the refrigeration device includes a refrigeration system and also forms a receiving chamber with an opening facing forward. The second drawer assembly is disposed in the receiving chamber, and the front end of the second cylinder is connected to the inner wall of the front end of the receiving chamber. The refrigeration system is in communication with the receiving chamber.

[0011] As a further improvement to one embodiment of this application, the oxygen regulating circuit is connected to the interior of the second cylinder.

[0012] As a further improvement of one embodiment of this application, the inner shell of the oxygen regulating container is formed into a storage chamber.

[0013] As a further improvement of one embodiment of this application, the oxygen regulating container is provided with a temperature sensor and an oxygen concentration sensor.

[0014] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0015] In the refrigeration equipment provided in this application, the wall of the oxygen-controlled container is configured as a double layer, comprising an inner shell and an outer shell. A cold storage material is installed in the cavity between the inner and outer shells to cool the high-temperature gas generated by the oxygen-controlled module, thus offsetting the influence of the oxygen-controlled gas on the temperature within the storage space. Furthermore, the oxygen-controlled container can serve as an intermediate container for cooling the oxygen-controlled gas, or it can be used as a container for storing items. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the cooperation between the drawer assembly and the oxygen control module of the refrigeration equipment in one embodiment of this application.

[0017] Figure 2 yes Figure 1 The front view in the image.

[0018] Figure 3 yes Figure 2 Schematic diagram of cross section along line AA.

[0019] Figure 4 yes Figure 3 Enlarged view of section B in the middle.

[0020] Figure 5 yes Figure 2 A cross-sectional view along the CC line.

[0021] Figure 6 This is a schematic diagram of the cooperation between the oxygen regulating module and the oxygen regulating container in another embodiment of this application.

[0022] Figure 7 yes Figure 6 The front view in the image.

[0023] Figure 8 yes Figure 7 Schematic diagram of cross section along line DD.

[0024] 10. Oxygen regulating module; 20. Oxygen regulating circuit; 30. Oxygen regulating container; 301. Inner shell; 302. Outer shell; 303. Hollow cavity; 40. Oxygen regulating chamber; 50. Temperature control chamber; 60. Receiving chamber;

[0025] 1. First drawer assembly; 11. First cylinder; 111. Cold air inlet; 112. Cold air outlet; 12. First drawer; 121. First front cover; 13. Cover; 131. Oxygen regulating hole; 132. Oxygen permeable membrane;

[0026] 2. Second drawer assembly; 21. Second cylinder; 211. Moisture permeable vent; 22. Second drawer; 221. Second front cover;

[0027] 31. Third drawer; 311. Third front cover. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0029] The terms used in this document, such as “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” indicating spatial relative positions, are used for illustrative purposes to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. The terms “spatial relative positions” may be intended to include different orientations of the equipment in use or operation other than those shown in the figures.

[0030] For example, if the device in the figure is flipped, a unit described as being "below" or "under" other units or features will be "above" other units or features. Therefore, the exemplary term "below" can encompass both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or otherwise) and the spatially related descriptive terms used herein will be interpreted accordingly.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] Furthermore, it should be understood that although the terms "first," "second," etc., may be used herein to describe various elements or structures, the objects being described should not be limited by these terms. These terms are only used to distinguish these objects from one another. For example, a first oxygen conditioning circuit may be referred to as a second oxygen conditioning circuit, and similarly, a second oxygen conditioning circuit may be referred to as a first oxygen conditioning circuit, without departing from the scope of protection of this application.

[0033] This application provides a refrigeration device, see reference. Figures 6-8 As shown, the system includes an oxygen regulating module 10, an oxygen regulating passage 20, and an oxygen regulating container 30. The oxygen regulating passage 20 connects the oxygen regulating module 10 and the oxygen regulating container 30 to deliver the airflow generated by the oxygen regulating module 10 into the oxygen regulating container 30. The oxygen regulating container 30 includes an inner shell 301 and an outer shell 302, with a hollow cavity 303 formed between the inner shell 301 and the outer shell 302. The hollow cavity 303 is filled with a cold storage material. The cold storage material can be a eutectic phase change material prepared by mixing two or more phase change materials, such as a blend of octanoic acid and lauric acid, or a blend of dodecyl alcohol and octanoic acid.

[0034] In this application, the oxygen regulating container 30 can receive the oxygen regulating flow generated by the oxygen regulating module 10. Since the oxygen regulating container 30 includes an inner shell 301 and an outer shell 302, the hollow cavity 303 between the inner shell 301 and the outer shell 302 is filled with a cold storage material, which can cool the oxygen regulating flow from the oxygen regulating module 10, preventing the high-temperature oxygen regulating flow from raising the temperature inside the storage room. The oxygen regulating container 30 can serve as an intermediate container between the oxygen regulating module 10 and the storage room for storing items, or the internal space of the inner shell 301 of the oxygen regulating container 30 can be directly used for storage.

[0035] The following text will describe the oxygen-regulating container 30 as an intermediate container and as a storage container.

[0036] refer to Figures 1-5 The refrigeration equipment also includes an oxygen-regulating chamber 40 connected to the oxygen-regulating container 30. The oxygen-regulating path 20 also connects the oxygen-regulating container 30 and the oxygen-regulating chamber 40. The airflow generated by the oxygen-regulating module 10 is cooled by the oxygen-regulating container 30 before entering the oxygen-regulating chamber 40. At this time, the oxygen-regulating container 30 acts as an intermediate container to cool the oxygen-regulating flow, and the oxygen-regulating chamber 40 is a storage chamber. This chamber can be used for storage and the oxygen concentration can be adjusted by the oxygen-regulating module 10 according to the type of stored items. Hereinafter, it will be referred to as the oxygen-regulating chamber 40. Therefore, the oxygen-regulating flow generated by the oxygen-regulating module 10 can be either oxygen-rich or oxygen-deficient. Furthermore, for ease of distinction, the oxygen-regulating path 20 connecting the oxygen-regulating module 10 and the oxygen-regulating container 30 will be referred to as the first oxygen-regulating path 20, and the oxygen-regulating path 20 connecting the oxygen-regulating container 30 and the oxygen-regulating chamber 40 will be referred to as the second oxygen-regulating path 20. Figures 1-5 The connection structure between the oxygen regulating module 10 and the oxygen regulating chamber 40 is not shown, therefore the first oxygen regulating path 20 and the second oxygen regulating path 20 are not illustrated. The specific flow direction of the oxygen regulating flow is: oxygen regulating module 10 - first oxygen regulating path 20 - oxygen regulating container 30 - second oxygen regulating path 20 - oxygen regulating chamber 40. Since the connection relationship between the oxygen regulating module 10, oxygen regulating container 30 and oxygen regulating chamber 40 can adopt common connection methods, it will not be explained in detail below. Of course, if the oxygen regulating container 30 is used as the storage chamber in the following text, the oxygen regulating path 20 does not need to be distinguished.

[0037] In some embodiments, the refrigeration device provided in this application further includes a drawer assembly, which has a different structure from another drawer assembly described below. For ease of distinction, this drawer assembly is referred to as the first drawer assembly 1, such as... Figure 1 In the middle, the first drawer assembly 1 is on the upper left, and the second drawer assembly 2 is on the upper right. The first drawer assembly 1 includes a first cylinder 11 with its opening facing forward, a first drawer 12 disposed inside the first cylinder 11, and a cover 13 covering the top of the first drawer 12. The first drawer 12 includes a first front cover 121, which completely covers the front opening of the first cylinder 11. The first drawer 12 and the cover 13 form an oxygen-regulating chamber 40.

[0038] The first drawer 12 has an opening at the top, and the cover 13 is placed on top of the first drawer 12, forming a sealed space between the first drawer 12 and the cover 13, which is the aforementioned oxygen-regulating chamber 40. The first front cover 121 of the first drawer 12 completely covers the front opening of the first cylinder 11, which forms another sealed space between the first cylinder 11, the first drawer 12, and the cover 13, called the temperature-controlled chamber 50.

[0039] In some embodiments, such as Figure 3 In this system, the oxygen regulating path 20 (second oxygen regulating path 20) is connected to the oxygen regulating chamber 40. The refrigeration equipment also includes a refrigeration system, which is connected to the temperature-controlled chamber 50 formed by the first cylinder 11, the first drawer 12, and the cover 13. That is, by setting an oxygen regulating port (not shown) on the cover 13 or the first drawer 12, the oxygen regulating chamber 40 and the oxygen regulating path 20 are connected through the oxygen regulating port. This allows the oxygen-rich or oxygen-poor flow generated by the oxygen regulating module 10 to enter the oxygen regulating container 30 through the first oxygen regulating path 20 for cooling, and then directly enter the oxygen regulating chamber 40 through the second oxygen regulating path 20, thus regulating the oxygen content in the oxygen regulating chamber 40. The refrigeration system is connected to the temperature-controlled chamber 50, such as... Figure 3 In the middle, a cold air inlet 111 is provided at the top of the rear side of the cylinder, and a cold air outlet 112 is provided at the bottom. The first front cover 121 is connected to the front end of the first drawer 12, and a gap is formed between the first front cover 121 and the first drawer 12. The cold energy of the refrigeration system enters the temperature control chamber 50 from the cold air inlet 111, flows through the cover 13, and then flows from top to bottom of the first drawer 12 through the gap between the first drawer 12 and the first front cover 121. It then flows out from the cold air outlet 112 to complete the circulation. The cold energy is radiated into the oxygen-regulating chamber 40 through the first drawer 12 and the cover 13, so as to regulate the temperature of the oxygen-regulating chamber 40 for storing items.

[0040] In other embodiments, contrary to the foregoing, the oxygen regulating passage 20 (second oxygen regulating passage 20) communicates with the cavity (i.e., temperature control chamber 50) formed by the first cylinder 11, the first drawer 12, and the cover 13; the cover 13 is provided with an oxygen regulating through hole 131, and the oxygen regulating through hole 131 is covered with an oxygen permeable membrane 132; the refrigeration system is connected to the oxygen regulating chamber 40. The cover 13 is provided with an oxygen regulating through hole 131, and the oxygen regulating through hole 131 is covered with an oxygen permeable membrane 132, that is, oxygen in the oxygen regulating chamber 40 and the temperature control chamber 50 can pass through the oxygen permeable membrane 132. (Not illustrated, but can be seen) Figure 3 (For reference only)

[0041] When the second oxygen regulating path 20 is connected to the temperature control chamber 50, if the oxygen regulating chamber 40 requires an oxygen-enriched environment, the oxygen regulating module 10 provides an oxygen-enriched flow. After the oxygen-enriched flow enters the temperature control chamber 50, the oxygen concentration in the temperature control chamber 50 is high, and the oxygen concentration in the oxygen regulating chamber 40 is low. The oxygen passes through the oxygen permeable membrane 132 from the side with high concentration (temperature control chamber 50) to the side with low concentration (oxygen regulating chamber 40), thereby increasing the oxygen content in the oxygen regulating chamber 40.

[0042] If the oxygen conditioning chamber 40 requires a low-oxygen environment, the oxygen conditioning module 10 provides a low-oxygen flow. After the low-oxygen flow enters the temperature control chamber 50, the oxygen concentration in the temperature control chamber 50 is low, while the oxygen concentration in the oxygen conditioning chamber 40 is high. The oxygen passes through the oxygen permeable membrane 132 from the side with high concentration (oxygen conditioning chamber 40) to the side with low concentration (temperature control chamber 50), thereby reducing the oxygen content in the oxygen conditioning chamber 40.

[0043] The refrigeration system of the refrigeration equipment can be directly connected to the oxygen conditioning chamber 40 to directly control the temperature of the oxygen conditioning chamber 40.

[0044] In some embodiments, the refrigeration device provided in this application further includes a drawer assembly, which includes a second cylinder 21 with its opening facing forward and a second drawer 22 disposed within the second cylinder 21. The second drawer 22 includes a second front cover 221, which completely covers the front opening of the second cylinder 21. An oxygen-regulating chamber 40 is formed between the second cylinder 21 and the second front cover 221.

[0045] The structure of this drawer assembly is different from that of the first drawer assembly 1 mentioned above. This drawer assembly is called the second drawer assembly 2. The second drawer assembly 2 does not divide the internal space of the second cylinder 21 into two, but only one (the second drawer 22 is located in this space). Similarly, the second front cover 221 of the second drawer 22 covers the opening on the front side of the second cylinder 21 to form a sealed compartment, which is the oxygen conditioning compartment 40.

[0046] In some embodiments, the oxygen regulating passage 20 (the second oxygen regulating passage 20) is connected to the interior of the second cylinder 21. Figure 5 In the middle, the rear end of the second cylinder 21 is provided with a through hole that connects to the second oxygen regulating passage 20, so that the oxygen-rich or oxygen-poor flow generated by the oxygen regulating module 10 is cooled by the oxygen regulating container 30 and then enters the oxygen regulating chamber 40 formed by the second cylinder 21.

[0047] In some embodiments, the refrigeration device further includes a forward-facing receiving chamber 60, such as... Figure 5 The rear wall of the middle receiving chamber 60 is a duct cover, which is not shown in the figure. Therefore, the receiving chamber 60 appears to have no rear wall in the figure (it actually has a rear wall). The second drawer assembly 2 is located inside the receiving chamber 60, and the front end of the second cylinder 21 is connected to the inner wall of the front end of the receiving chamber 60. The refrigeration system is connected to the receiving chamber 60. Figure 5As can be seen, the second drawer assembly 2 is surrounded by the receiving chamber 60. Since the front end of the second cylinder 21 is connected to the inner wall of the front end of the receiving chamber 60, the receiving chamber 60 forms a closed space due to the presence of the second drawer assembly 2. It has a similar structure and function to the temperature control chamber 50 in the first drawer assembly 1. The oxygen flow enters the oxygen conditioning chamber 40 to regulate the oxygen concentration in the oxygen conditioning chamber 40. The refrigeration system is connected to the receiving chamber 60 outside the oxygen conditioning chamber 40, and the cold energy is radiated into the oxygen conditioning chamber 40 to control the temperature of the oxygen conditioning chamber 40.

[0048] like Figure 5 In the second cylinder 21, a moisture-permeable hole 211 is provided at the top, and a moisture-permeable membrane is provided at the moisture-permeable hole 211 to regulate the humidity in the oxygen-regulating chamber 40. Of course, an oxygen-regulating hole 131 can also be provided at the top of the second cylinder 21 (the cover 13 in the first drawer assembly 1) or other locations and covered with an oxygen-permeable membrane 132, so that the oxygen in the second oxygen-regulating path 20 can flow into the receiving chamber 60 and then enter the oxygen-regulating chamber 40 through the oxygen-permeable membrane 132. The specific oxygen permeation method is described above and will not be repeated here.

[0049] The oxygen-regulating chamber 40 in the second drawer assembly 2 has a better seal because the second front cover 221 of the second drawer 22 is aligned with the front opening of the second cylinder 21. The seal of the oxygen-regulating chamber 40 in the first drawer assembly 1 is achieved by the first drawer 12 moving back and forth relative to the cover 13, resulting in a relatively poor seal. An oxygen-deficient chamber or an oxygen-enriched chamber can be selected according to requirements.

[0050] In some embodiments, the interior of the inner shell 301 of the oxygen regulating container 30 is formed as a storage chamber; that is, the oxygen regulating container 30 is used for the second purpose mentioned above: directly as a storage chamber. When the internal space of the oxygen regulating container 30 is used as a storage chamber, since it is necessary to cool the oxygen flow in the internal space, the oxygen regulating container 30 is usually a sealed container. It can be an opening on one side with a door on the opening side that can be opened or closed, or it can be as follows: Figure 8 In the middle, the inner shell 301 and the outer shell 302 form a front opening and a cylindrical structure of interlayer (i.e., hollow cavity 303), with a third drawer 31 inside. The third drawer 31 has a third front cover 311 that can seal the opening. Items can be taken out and put in by pulling out the third drawer 31.

[0051] In some embodiments, a temperature sensor and an oxygen concentration sensor are installed inside the oxygen regulating container 30 to monitor the temperature and oxygen concentration inside the container. When the temperature inside the oxygen regulating container 30 is too high, the temperature is lowered by releasing cold energy from the cold storage material, or the oxygen regulating module 10 is paused from generating the oxygen regulating flow until the temperature inside the container 30 drops to a preset range before resuming operation. When the oxygen concentration inside the oxygen regulating container 30 is too high (typically corresponding to an oxygen-rich environment in the oxygen regulating chamber 40), the oxygen regulating module 10 can be controlled to stop operating. When the oxygen concentration inside the oxygen regulating container 30 is too low (typically corresponding to an oxygen-deficient environment in the oxygen regulating chamber 40), the oxygen regulating module 10 can also be controlled to stop operating.

[0052] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0053] The detailed descriptions listed above are merely specific descriptions of feasible implementation methods of this application and are not intended to limit the scope of protection of this application. All equivalent implementation methods or modifications made without departing from the spirit of the art of this application should be included within the scope of protection of this application.

Claims

1. A refrigeration device, characterized in that, It includes an oxygen regulating module (10), an oxygen regulating circuit (20), and an oxygen regulating container (30). The oxygen regulating circuit (20) connects the oxygen regulating module (10) and the oxygen regulating container (30) to deliver the airflow generated by the oxygen regulating module (10) to the oxygen regulating container (30). The oxygen regulating container (30) includes an inner shell (301) and an outer shell (302). A hollow cavity (303) is formed between the inner shell (301) and the outer shell (302). The hollow cavity (303) is filled with a cold storage material.

2. The refrigeration equipment according to claim 1, characterized in that, It also includes an oxygen conditioning chamber (40) connected to the oxygen conditioning container (30). The oxygen conditioning circuit (20) is also connected to the oxygen conditioning container (30) and the oxygen conditioning chamber (40). The airflow generated by the oxygen conditioning module (10) is cooled by the oxygen conditioning container (30) and then enters the oxygen conditioning chamber (40).

3. The refrigeration equipment according to claim 2, characterized in that, It also includes a first drawer assembly (1), which includes a first cylinder (11) with its opening facing forward, a first drawer (12) disposed inside the first cylinder (11), and a cover (13) covering the top of the first drawer (12). The first drawer (12) includes a first front cover (121) which completely covers the front opening of the first cylinder (11). The first drawer (12) and the cover (13) form the oxygen conditioning chamber (40).

4. The refrigeration equipment according to claim 3, characterized in that, The oxygen conditioning circuit (20) is connected to the oxygen conditioning chamber (40); the refrigeration equipment also includes a refrigeration system, which is connected to the cavity formed by the first cylinder (11), the first drawer (12) and the cover (13).

5. The refrigeration equipment according to claim 3, characterized in that, The oxygen regulating circuit (20) is connected to the cavity formed by the first cylinder (11), the first drawer (12) and the cover (13); the cover (13) is provided with an oxygen regulating through hole (131), and the oxygen regulating through hole (131) is covered with an oxygen permeable membrane (132); the refrigeration equipment also includes a refrigeration system, which is connected to the oxygen regulating chamber (40).

6. The refrigeration equipment according to claim 2, characterized in that, It also includes a second drawer assembly (2), which includes a second cylinder (21) with its opening facing forward and a second drawer (22) disposed inside the second cylinder (21). The second drawer (22) includes a second front cover (221) which completely covers the front opening of the second cylinder (21). The second cylinder (21) and the second front cover (221) form the oxygen conditioning chamber (40).

7. The refrigeration equipment according to claim 6, characterized in that, The refrigeration device includes a refrigeration system and also forms a receiving chamber (60) with the opening facing forward. The second drawer assembly (2) is disposed in the receiving chamber (60), and the front end of the second cylinder (21) is connected to the inner wall of the front end of the receiving chamber (60). The refrigeration system is connected to the receiving chamber (60).

8. The refrigeration equipment according to claim 6, characterized in that, The oxygen regulating circuit (20) is connected to the interior of the second cylinder (21).

9. The refrigeration equipment according to claim 1, characterized in that, The inner shell (301) of the oxygen regulating container (30) is formed into a storage chamber.

10. The refrigeration equipment according to any one of claims 1 to 9, characterized in that, The oxygen regulating container (30) is equipped with a temperature sensor and an oxygen concentration sensor.

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