Refrigeration equipment

Abstract

The utility model provides refrigeration equipment which comprises an oxygen adjusting module, an oxygen adjusting gas path and an oxygen adjusting chamber, and the oxygen adjusting gas path communicates with the oxygen adjusting module and the oxygen adjusting chamber so that oxygen adjusting gas flow can be conveyed into the oxygen adjusting chamber; and a dryer and / or a humidifier are / is arranged in the oxygen adjusting gas path. According to the refrigeration equipment provided by the invention, the dryer and / or the humidifier are / is arranged in the oxygen adjusting gas path, so that the humidity of the oxygen adjusting chamber can be adjusted and controlled.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, and in particular to a refrigeration equipment having an oxygen regulating chamber with adjustable oxygen concentration. Background Art

[0002] Different ingredients require different temperatures, humidity and oxygen content. Today's controlled atmosphere refrigerators will affect the temperature and humidity of the refrigerator when adjusting the gas concentration, causing temperature and humidity fluctuations. Summary of the Invention

[0003] The purpose of the present application is to provide a refrigeration device, in which a humidifier and / or a dryer is arranged in the oxygen conditioning circuit connecting the oxygen conditioning module and the oxygen conditioning chamber to humidify or dry the oxygen conditioning flow, so that the oxygen conditioning circuit can be regulated according to the temperature and humidity requirements in the oxygen conditioning chamber, thereby solving the problem in the prior art of fluctuations in the temperature and humidity in the chamber when regulating the oxygen concentration.

[0004] In order to achieve one of the above-mentioned purposes of the invention, one embodiment of the present application provides a refrigeration device, including an oxygen conditioning module, an oxygen conditioning circuit and an oxygen conditioning chamber, wherein the oxygen conditioning circuit connects the oxygen conditioning module and the oxygen conditioning chamber to transport the oxygen conditioning air flow to the oxygen conditioning chamber; a dryer and / or a humidifier is provided in the oxygen conditioning circuit.

[0005] As a further improvement of an embodiment of the present application, at least two oxygen conditioning circuits are provided, and the dryer and humidifier are respectively provided in different oxygen conditioning circuits.

[0006] As a further improvement of one embodiment of the present application, it also includes a drawer assembly, which includes a cylinder with an opening facing forward, a drawer arranged in the cylinder, and a cover arranged on the top of the drawer, the drawer includes a front cover, which completely covers the front opening of the cylinder, and the oxygen adjustment chamber is formed between the drawer and the cover.

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

[0008] As a further improvement of one embodiment of the present application, the oxygen regulating circuit is connected to the cavity formed by the cylinder, the 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;

[0009] The refrigeration equipment further comprises a refrigeration system, which is communicated with the oxygen conditioning chamber.

[0010] As a further improvement of one embodiment of the present application, it also includes a drawer assembly, which includes a cylinder with an opening facing forward and a drawer arranged in the cylinder, and the drawer includes a front cover, which completely covers the front opening of the cylinder, and the oxygen adjustment chamber is formed between the cylinder and the front cover.

[0011] As a further improvement of one embodiment of the present application, the refrigeration equipment includes a refrigeration system and is also formed with a accommodating chamber with an opening facing forward. The drawer assembly is arranged in the accommodating chamber, and the front end of the cylinder is connected to the inner wall of the front end of the accommodating chamber, and the refrigeration system is connected to the accommodating chamber.

[0012] As a further improvement of one embodiment of the present application, the oxygen regulating circuit is connected to the interior of the cylinder.

[0013] As a further improvement of an embodiment of the present application, the cylinder is provided with a moisture control through hole, and the moisture control through hole is covered with a moisture permeable membrane.

[0014] As a further improvement of an embodiment of the present application, a temperature sensor, a humidity sensor and an oxygen concentration sensor are provided in the oxygen conditioning room.

[0015] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0016] The refrigeration equipment provided in the present application is provided with a humidifier and / or a dryer in the oxygen conditioning circuit connecting the oxygen conditioning module and the oxygen conditioning chamber to humidify or dry the oxygen conditioning flow, so that the oxygen conditioning circuit can be regulated according to the temperature and humidity requirements in the oxygen conditioning chamber to control the stability of the temperature and humidity in the oxygen conditioning chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the coordination of the drawer assembly and the oxygen regulation module in an embodiment of the present application.

[0018] Figure 2 yes Figure 1 Top view of the central oxygen regulation module.

[0019] Figure 3 yes Figure 2 Schematic cross-sectional view along line AA.

[0020] Figure 4 yes Figure 1 Front view of the coordination diagram of the middle drawer assembly and the oxygen regulation module.

[0021] Figure 5 yes Figure 4 Schematic cross-sectional view along line BB.

[0022] Figure 6 yes Figure 5 Enlarged view of point C in the middle.

[0023] Figure 7 yes Figure 4 Schematic cross-sectional view along line DD.

[0024] Figure 8 yes Figure 4 Schematic cross-sectional view along line EE.

[0025] Figure 9 yes Figure 4 Schematic cross-sectional view along line FF.

[0026] Figure 10 This is a schematic diagram of the coordination of the second drawer assembly, the oxygen regulating circuit, and the oxygen regulating module in an embodiment of the present application.

[0027] 10. Oxygen conditioning module; 101. Housing; 1011. Accommodation space; 102. Shell; 1021. Oxygen production chamber; 20. Oxygen conditioning circuit; 40. Oxygen conditioning compartment; 50. Temperature control chamber; 60. Accommodation chamber;

[0028] 1. First drawer assembly; 11. First cylinder; 111. Cooling air inlet; 112. Cooling air outlet; 12. First drawer; 121. First front cover; 13. Cover; 131. Oxygen regulating hole; 132. Oxygen permeable membrane; 133. First air guide rib;

[0029] 2. Second drawer assembly; 21. Second cylinder; 211. Moisture-permeable through hole; 212. Second air guide rib; 22. Second drawer; 221. Second front cover. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0031] As used herein, terms such as "center," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" that indicate spatial relative positions are used for ease of explanation to describe the relationship of one element or feature relative to another element or feature as shown in the accompanying drawings. Spatially relative terms may be intended to encompass different orientations of the device in use or operation other than the orientation shown in the drawings.

[0032] For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0034] Furthermore, it should be understood that although the terms first, second, etc. may be used herein to describe various elements or structures, these described objects should not be limited by these terms. These terms are merely used to distinguish these described objects from each other. For example, a first drawer assembly may be referred to as a second drawer assembly, and similarly, a second drawer assembly may be referred to as a first drawer assembly without departing from the scope of protection of this application.

[0035] The present embodiment provides a refrigeration device comprising an oxygen conditioning module 10, an oxygen conditioning circuit 20, and an oxygen conditioning chamber 40. The oxygen conditioning circuit 20 connects the oxygen conditioning module 10 and the oxygen conditioning chamber 40 to deliver an oxygen conditioning airflow to the oxygen conditioning chamber 40. A dryer and / or a humidifier are provided in the oxygen conditioning circuit 20. Both the dryer and the humidifier are provided in the oxygen conditioning circuit 20, though not shown.

[0036] The oxygen regulating module 10 includes an oxygen production chamber 103 for storing electrolyte, an anode conductive plate and a cathode conductive plate respectively connected to the positive and negative poles of the power supply, and the anode conductive plate and the cathode conductive plate are at least partially immersed in the electrolyte.

[0037] like Figures 3-5 In the embodiment, the oxygen regulating module 10 further includes a housing 101 having a receiving space 1011 and a shell 102 having an oxygen production chamber 1021. The shell 102 is disposed in the receiving space 1011. The anode conductive plate and the cathode conductive plate are disposed in the oxygen production chamber 1021 and immersed in the electrolyte. The anode conductive plate is connected to the anode of the power supply, and the cathode conductive plate is connected to the cathode of the power supply. After the power supply is connected, the cathode conductive plate absorbs oxygen from the air and a reduction reaction occurs. The reaction formula is O2+2H2O+4e - →4OH - , so that the air flowing through the cathode conductive plate becomes an oxygen-depleted oxygen-adjusted air flow, and the anode conductive plate is from the OH in the electrolyte- Oxidation reaction occurs and oxygen is generated. The reaction formula is 4OH - →O2+2H2O+4e - , electrolyze water to obtain oxygen, and obtain an oxygen-enriched oxygen-regulated air flow.

[0038] The oxygen regulating module 10 generates an oxygen regulating airflow and enters the oxygen regulating chamber 40 through the oxygen regulating circuit 20 to adjust the oxygen concentration in the oxygen regulating chamber 40. The refrigeration device provided in the embodiment of the present application is provided with a dryer and / or a humidifier in the oxygen regulating circuit 20 so that the food in the oxygen regulating chamber 40 can be adjusted when different humidity is required. This includes providing only a dryer in the oxygen regulating circuit 20 to provide a dry oxygen regulating airflow to the oxygen regulating chamber 40; providing only a humidifier in the oxygen regulating circuit 20 to provide a high-humidity oxygen regulating airflow to the oxygen regulating chamber 40; and providing both a dryer and a humidifier in the oxygen regulating circuit 20, and turning on the dryer or humidifier according to the humidity requirement of the oxygen regulating chamber 40.

[0039] When the oxygen conditioning chamber 40 requires low-humidity air, the oxygen conditioning airflow in the oxygen conditioning circuit 20 is dehumidified by the dryer. After the dehumidified oxygen conditioning airflow is transported into the oxygen conditioning chamber 40, the humidity inside the oxygen conditioning chamber 40 can also be reduced. The dryer humidifies the oxygen conditioning airflow to reduce the humidity, thereby obtaining a low-humidity and high-temperature oxygen conditioning airflow.

[0040] When the oxygen conditioning chamber 40 requires high humidity air, the humidifier is used to humidify the oxygen conditioning airflow in the oxygen conditioning circuit 20. After the humidified oxygen conditioning airflow is transported into the oxygen conditioning chamber 40, the humidity inside the oxygen conditioning chamber 40 can also be increased. The humidifier only increases the humidity of the oxygen conditioning airflow in the oxygen conditioning circuit 20, thereby obtaining a high humidity and low temperature oxygen conditioning airflow.

[0041] Of course, other methods can also be used to obtain low-humidity oxygen-controlled airflow or high-humidity oxygen-controlled airflow. In addition to the aforementioned low-humidity and high-temperature oxygen-controlled airflow and high-humidity and low-temperature oxygen-controlled airflow, high-temperature and high-humidity oxygen-controlled airflow and low-temperature and low-humidity oxygen-controlled airflow can also be obtained.

[0042] In some embodiments, there are at least two oxygen conditioning circuits 20, and the dryer and the humidifier are respectively arranged in different oxygen conditioning circuits 20, such as Figure 10 One end of the oxygen regulating circuit 20 is connected to the oxygen regulating module 10, and the other end is divided into two and both are connected to the oxygen regulating chamber 40 in the drawer assembly. Figure 10 The oxygen conditioning circuit 20 is merely an illustration of the connection between the oxygen conditioning module 10 and the oxygen conditioning chamber 40, and does not necessarily connect the oxygen conditioning circuit 20 to the top of the oxygen conditioning module 10 and the oxygen conditioning chamber 40. Placing the dryer and humidifier in separate oxygen conditioning circuits 20 can further prevent the humidity of the oxygen conditioning airflow in the oxygen conditioning circuit 20 before switching from high humidity to low humidity from affecting the humidity after switching when the oxygen conditioning chamber 40 switches between high humidity and low humidity.

[0043] In some embodiments, the refrigeration device provided by the present application further comprises a drawer assembly, which is different from another drawer assembly structure described below. In order to distinguish, the drawer assembly is a first drawer assembly 1, as shown in Figure 1 In the above, the upper left side is the first drawer assembly 1, and the upper right side is the second drawer assembly 2 described below. The first drawer assembly 1 comprises a first cylinder 11 with an opening facing forward, a first drawer 12 arranged in the first cylinder 11, and a cover 13 arranged on the top of the first drawer 12. The first drawer 12 comprises a first front cover 121, which completely covers the front side opening of the first cylinder 11. An oxygen adjusting chamber 40 is formed between the first drawer 12 and the cover 13.

[0044] The first drawer 12 is open at the top, and the cover 13 is arranged on the top of the first drawer 12, so that a closed space is formed between the first drawer 12 and the cover 13, which is the aforementioned oxygen adjusting chamber 40. The first front cover 121 of the first drawer 12 completely covers the front side opening of the first cylinder 11, which forms another closed space between the first cylinder 11, the first drawer 12 and the cover 13, which is called a temperature control chamber 50.

[0045] In some embodiments, as shown in Figure 3 In the above, the oxygen adjusting gas path 20 communicates with the oxygen adjusting chamber 40, and the refrigeration device further comprises a refrigeration system, which communicates with the cavity formed by the first cylinder 11, the first drawer 12 and the cover 13, i.e. the temperature control chamber 50. That is, the oxygen adjusting chamber 40 and the oxygen adjusting gas path 20 can be communicated through the oxygen adjusting port (not shown) arranged on the cover 13 or the first drawer 12, so that the oxygen-rich or oxygen-poor gas flow generated by the oxygen adjusting module 10 directly enters the oxygen adjusting chamber 40 through the oxygen adjusting gas path 20, and the oxygen content of the oxygen adjusting chamber 40 is adjusted. The refrigeration system communicates with the temperature control chamber 50, as shown in Figure 3 In the above, the top of the rear side of the first cylinder 11 is provided with a cold air inlet 111, and the bottom is provided with a cold air outlet 112, as shown in Figure 5 In the above, the top of the cover 13 is provided with a first air guide rib 133, which guides the cold air entering the temperature control chamber 50 from the cold air inlet 111 to various places between the cover 13 and the first cylinder 11. 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 the gap between the first drawer 12 and the first front cover 121 to the first drawer 12 from top to bottom, and then flows out from the cold air outlet 112 to complete the circulation. The cold energy is radiated into the oxygen adjusting chamber 40 through the first drawer 12 and the cover 13, so as to adjust the temperature of the oxygen adjusting chamber 40 for storing goods.

[0046] In other embodiments, contrary to the above, the oxygen regulating circuit 20 is connected to the cavity (i.e., the 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. Figure 4 In the embodiment, an oxygen regulating hole 131 is provided on the cover 13, and the oxygen regulating hole 131 is covered with an oxygen permeable membrane 132, that is, the oxygen in the oxygen regulating chamber 40 and the temperature control chamber 50 can pass through the oxygen permeable membrane 132. (Not shown, but can be Figure 3 For reference)

[0047] When the oxygen regulating circuit 20 is connected to the temperature-controlled chamber 50, if the oxygen regulating chamber 40 requires an oxygen-rich environment, the oxygen regulating module 10 provides an oxygen-rich airflow. After the oxygen-rich airflow enters the temperature-controlled chamber 50, the oxygen concentration in the temperature-controlled chamber 50 is high, and the oxygen concentration in the oxygen regulating chamber 40 is low. Oxygen passes through the oxygen permeable membrane 132 from the side with high concentration (temperature-controlled chamber 50) to the side with low concentration (oxygen regulating chamber 40), thereby increasing the oxygen content in the oxygen regulating chamber 40.

[0048] If the oxygen conditioning chamber 40 requires an oxygen-depleted environment, the oxygen conditioning module 10 provides an oxygen-depleted airflow. After the oxygen-depleted airflow enters the temperature-controlled chamber 50, the oxygen concentration in the temperature-controlled chamber 50 is low, and the oxygen concentration in the oxygen conditioning chamber 40 is high. 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-controlled chamber 50), thereby reducing the oxygen content in the oxygen conditioning chamber 40.

[0049] 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.

[0050] In some embodiments, the refrigeration equipment provided in the present application also includes a drawer assembly, which includes a second cylinder 21 with an opening facing forward and a second drawer 22 arranged in 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 adjustment chamber 40 is formed between the second cylinder 21 and the second front cover 221.

[0051] This drawer assembly has a different structure from the aforementioned first drawer assembly 1. 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 has 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 closed compartment, namely the oxygen conditioning compartment 40.

[0052] In some embodiments, the oxygen regulating circuit 20 is connected to the interior of the second cylinder 21. Figure 6In the embodiment, a through hole is provided at the rear end of the second cylinder 21 to communicate with the oxygen regulating circuit 20 , so that the oxygen-rich or oxygen-depleted airflow generated by the oxygen regulating module 10 enters the oxygen regulating chamber 40 formed by the second cylinder 21 .

[0053] In some embodiments, the refrigeration device is further formed with a receiving chamber 60 with an opening facing forward, such as Figure 6 The rear wall of the middle accommodating chamber 60 is an air duct cover, which is not shown. Therefore, the accommodating chamber 60 in the figure is shown without a rear wall (actually there is a rear wall). The second drawer assembly 2 is arranged in the accommodating chamber 60, and the front end of the second cylinder 21 is connected to the front inner wall of the accommodating chamber 60. The refrigeration system is connected to the accommodating chamber 60. Figure 6 As can be seen in the figure, the second drawer assembly 2 is surrounded by the accommodating chamber 60. Since the front end of the second cylinder 21 is connected to the inner wall of the front end of the accommodating chamber 60, the accommodating chamber 60 is formed into 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 adjust the oxygen concentration in the oxygen conditioning chamber 40. The refrigeration system is connected to the accommodating chamber 60 outside the oxygen conditioning chamber 40, and as shown in FIG. Figure 7 In the embodiment, a second air guide rib 212 is provided on the top of the second cylinder 21. After the cold air generated by the refrigeration system enters the accommodating chamber 60, it is guided to various places on the top of the second cylinder 21 under the action of the second air guide rib 212, so that the cold air is radiated into the oxygen conditioning chamber 40 to control the temperature of the oxygen conditioning chamber 40.

[0054] like Figure 6 In the embodiment, a moisture-permeable through hole 211 is provided at the top of the second barrel 21, and a moisture-permeable membrane is provided at the moisture-permeable through hole 211 for adjusting the humidity in the oxygen-conditioning compartment 40. Of course, an oxygen-conditioning through hole 131 can also be provided at the top of the second barrel 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-conditioning flow in the oxygen-conditioning circuit 20 flows into the accommodating chamber 60 and then enters the oxygen-conditioning compartment 40 through the oxygen-permeable membrane 132. The specific oxygen permeation method is described above and will not be described in detail here.

[0055] The oxygen regulating chamber 40 in the second drawer assembly 2 has better sealing performance because the second front cover 221 of the second drawer 22 is aligned with the front opening of the second cylinder 21. The sealing of the oxygen regulating chamber 40 in the first drawer assembly 1 is that the first drawer 12 moves back and forth relative to the cover 13, and the sealing performance is relatively poor. The oxygen-deficient chamber and the oxygen-rich chamber can be selected according to needs.

[0056] In some embodiments, a temperature sensor, a humidity sensor and an oxygen concentration sensor are provided in the oxygen conditioning chamber 40. The temperature sensor, the humidity sensor and the oxygen concentration sensor are used to respectively detect the temperature, humidity and oxygen concentration in the oxygen conditioning chamber 40, thereby controlling the gas supply of the oxygen conditioning circuit 20 or stopping the gas supply.

[0057] In this article, the oxygen regulating chamber 40 and the oxygen regulating module 10 are connected by only one oxygen regulating line 20. Since the connection relationship between the oxygen regulating chamber 40 and the oxygen regulating module 10 can adopt a common connection method, no further explanation is given below. If the oxygen regulating chamber 40 and the oxygen regulating module 10 are connected by two or more oxygen regulating lines 20, the number of oxygen regulating lines 20 is only increased based on one oxygen regulating line 20, and the connection relationship remains unchanged. Figure 8 For example, Figure 8 The oxygen regulating chamber 40 and the oxygen regulating module 10 are connected through two oxygen regulating paths 20, and the two oxygen regulating paths 20 are divided into two by one gas path, or can be two independent gas paths.

[0058] It should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation method can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0059] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of this application. They are not intended to limit the scope of protection of this application. Any equivalent implementation methods or changes that do not deviate from the technical spirit of this application should be included in the scope of protection of this application.

Claims

1. A refrigeration device, characterized in that: The invention comprises an oxygen regulating module (10), an oxygen regulating circuit (20) and an oxygen regulating chamber (40), wherein the oxygen regulating circuit (20) is connected with the oxygen regulating module (10) and the oxygen regulating chamber (40) to transport the oxygen regulating air flow to the oxygen regulating chamber (40); and a dryer and / or a humidifier is provided in the oxygen regulating circuit (20).

2. The refrigeration equipment according to claim 1, characterized in that At least two oxygen conditioning circuits (20) are provided, and the dryer and the humidifier are respectively provided in different oxygen conditioning circuits (20).

3. The refrigeration equipment according to claim 2, characterized in that The invention also includes a drawer assembly, which includes a cylinder with an opening facing forward, a drawer arranged in the cylinder, and a cover (13) arranged on the top of the drawer. The drawer includes a front cover, which completely covers the front opening of the cylinder. The oxygen regulating chamber (40) is formed between the drawer and the cover (13).

4. The refrigeration equipment according to claim 3, characterized in that The oxygen regulating circuit (20) is in communication with the oxygen regulating chamber (40); the refrigeration device further comprises a refrigeration system, which is in communication with a cavity formed by the cylinder, the drawer and the cover (13).

5. The refrigeration equipment according to claim 3, characterized in that: The oxygen regulating path (20) is in communication with a cavity formed by the cylinder, the drawer 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 further comprises a refrigeration system, and the refrigeration system is communicated with the oxygen adjustment chamber (40).

6. The refrigeration equipment according to claim 2, characterized in that It also includes a drawer assembly, which includes a cylinder with an opening facing forward and a drawer arranged in the cylinder. The drawer includes a front cover, which completely covers the front opening of the cylinder. The oxygen adjustment chamber (40) is formed between the cylinder and the front cover.

7. The refrigeration equipment according to claim 6, characterized in that The refrigeration device includes a refrigeration system and is further formed with a accommodating chamber (60) with an opening facing forward. The drawer assembly is arranged in the accommodating chamber (60), and the front end of the cylinder is connected to the front inner wall of the accommodating chamber (60). The refrigeration system is communicated with the accommodating chamber (60).

8. The refrigeration equipment according to claim 6, characterized in that The oxygen regulating path (20) is communicated with the interior of the cylinder.

9. The refrigeration equipment according to claim 8, characterized in that The cylinder is provided with a moisture control through hole, and the moisture control through hole is covered with a moisture permeable membrane.

10. The refrigeration equipment according to any one of claims 1 to 9, characterized in that: A temperature sensor, a humidity sensor and an oxygen concentration sensor are provided in the oxygen regulating chamber (40).

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