Refrigeration equipment

Abstract

The utility model provides refrigeration equipment which comprises an oxygen adjusting chamber, an oxygen adjusting module, an oxygen adjusting gas path and a cold storage device, the oxygen adjusting gas path is connected with the oxygen adjusting chamber and the oxygen adjusting module so that oxygen adjusting gas flow generated by the oxygen adjusting module can be conveyed into the oxygen adjusting chamber, and the cold storage device wraps the oxygen adjusting gas path. The cooling device is used for cooling oxygen-adjusting gas flow in an oxygen-adjusting gas path. According to the refrigeration equipment provided by the invention, the cold storage device is arranged outside the oxygen regulating gas path for communicating the oxygen regulating module with the oxygen regulating chamber to cool the oxygen regulating flow, so that the refrigeration equipment is simple in structure and good in cooling effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigeration equipment, in particular to a refrigeration equipment capable of adjusting oxygen concentration of an oxygen adjusting chamber. BACKGROUND

[0002] The current refrigerator has higher and higher requirements for the preservation of high-end food materials. The high-oxygen preservation environment is beneficial to the improvement of the preservation quality of meat food materials. Most of the ways to provide a high-oxygen environment are to generate a gas flow with high oxygen concentration by an electrolysis module, and introduce the gas flow into a chamber to form a high-oxygen chamber. During the operation of the electrolysis module, a certain amount of heat is generated, so the temperature of the delivered oxygen is also relatively high. The existing solution is to prohibit the electrolysis module from starting when the temperature detection value is higher than or equal to the temperature threshold. Although this control scheme reduces the temperature influence on the storage space, it is not conducive to the maintenance of the gas composition in the storage space, thereby reducing the preservation effect. SUMMARY

[0003] The purpose of the present application is to provide a refrigeration equipment, which wraps a cold storage device outside an oxygen adjusting gas path connecting an oxygen adjusting chamber and an oxygen adjusting module, thereby solving the problem of reducing the preservation effect caused by the temperature influence on the gas composition in the prior art.

[0004] In order to achieve one of the above-mentioned purposes, an embodiment of the present application provides a refrigeration equipment, which comprises an oxygen adjusting chamber, an oxygen adjusting module, an oxygen adjusting gas path and a cold storage device. The oxygen adjusting gas path connects the oxygen adjusting chamber and the oxygen adjusting module, so as to deliver the oxygen adjusting gas flow generated by the oxygen adjusting module into the oxygen adjusting chamber. The cold storage device is wrapped outside the oxygen adjusting gas path, and is used for cooling the oxygen adjusting gas flow in the oxygen adjusting gas path.

[0005] As a further improvement of the embodiment of the present application, the oxygen adjusting module comprises an oxygen generating chamber for storing electrolyte, an anode conductive plate and a cathode conductive plate connected with the positive and negative poles of a power supply respectively, and the anode conductive plate and the cathode conductive plate are at least partially soaked in the electrolyte.

[0006] As a further improvement of the embodiment of the present application, the refrigeration equipment further comprises a drawer assembly, which comprises a cylinder body with an opening facing forward, a drawer arranged in the cylinder body, and a cover body arranged on the top of the drawer. The drawer comprises a front cover, which completely covers the front opening of the cylinder body. The oxygen adjusting chamber is formed between the drawer and the cover body.

[0007] As a further improvement of the embodiment of the present application, the oxygen adjusting gas path is in communication with the oxygen adjusting chamber. The refrigeration equipment further comprises a refrigeration system, which is in communication with a cavity formed by the cylinder body, the drawer and the cover body.

[0008] As a further improvement of the embodiment of the present application, the oxygen adjusting air path is in communication with the cavity formed by the cylinder, the drawer and the cover; the cover is provided with an oxygen adjusting through hole, and the oxygen adjusting through hole is covered with an oxygen permeable film; the refrigeration equipment further comprises a refrigeration system, and the refrigeration system is in communication with the oxygen adjusting chamber.

[0009] As a further improvement of the embodiment of the present application, the refrigeration equipment further comprises a drawer assembly, the drawer assembly comprises a cylinder with an opening facing forward and a drawer arranged in the cylinder, the drawer comprises a front cover, the front cover completely covers the opening on the front side of the cylinder, and the oxygen adjusting chamber is formed between the cylinder and the front cover.

[0010] As a further improvement of the embodiment of the present application, the refrigeration equipment comprises a refrigeration system, and a containing cavity with an opening facing forward is further formed, the drawer assembly is arranged in the containing cavity, and the front end of the cylinder is connected with the inner wall of the front end of the containing cavity, and the refrigeration system is in communication with the containing cavity.

[0011] As a further improvement of the embodiment of the present application, the oxygen adjusting air path is in communication with the inside of the cylinder.

[0012] As a further improvement of the embodiment of the present application, the cylinder is provided with a humidity control through hole, and the humidity control through hole is covered with a humidity permeable film.

[0013] As a further improvement of the embodiment of the present application, the drawer assembly is provided with at least two, two of the at least two drawer assemblies are arranged close to each other, and the oxygen adjusting air path is arranged between the two drawer assemblies arranged close to each other.

[0014] The one or more technical solutions provided by the present application have at least the following technical effects or advantages:

[0015] In the refrigeration equipment provided by the present application, the oxygen adjusting module generates an oxygen adjusting air flow, the oxygen adjusting air flow is transmitted to the oxygen adjusting chamber through the oxygen adjusting air path, the oxygen adjusting chamber is provided with an oxygen-rich or oxygen-poor environment, and the cold storage device is wrapped outside the oxygen adjusting air path to reduce the heat generated by the oxygen adjusting module and avoid the fluctuation of the temperature in the oxygen adjusting chamber caused by the oxygen adjusting air flow. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a schematic view of the cooperation of the drawer assembly and the oxygen adjusting module of the refrigeration equipment in the embodiment of the present application.

[0017] Figure 2 FIG. 4 is a cross-sectional view of the oxygen adjusting air path and the cold storage material outside the oxygen adjusting air path.

[0018] Figure 3 FIG. 5 is a structural schematic view of the oxygen adjusting module in FIG. 4. Figure 1

[0019] Figure 4 FIG. 6 is a structural schematic view of the oxygen adjusting module in FIG. 4.​Figure 3 A top view of the oxygen adjusting module.

[0020] Figure 5 is Figure 4 A sectional view along line A-A.

[0021] Figure 6 is Figure 1 A front view of the drawer assembly cooperating with the oxygen adjusting module.

[0022] Figure 7 is Figure 6 A sectional view along line B-B.

[0023] Figure 8 is Figure 7 An enlarged view at C.

[0024] Figure 9 is Figure 6 A sectional view along line D-D.

[0025] 10, oxygen adjusting chamber; 20, oxygen adjusting module; 201, shell; 2011, containing space; 202, casing; 203, oxygen generating cavity; 30, oxygen adjusting gas path; 40, cold storage material; 50, temperature control cavity; 60, containing cavity;

[0026] 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 adjusting through hole; 132, oxygen permeable film;

[0027] 2, second drawer assembly; 21, second cylinder; 211, moisture permeable through hole; 22, second drawer; 221, second front cover. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] The terms such as "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like used herein to indicate spatial relative positions are for the purpose of facilitating description to describe the relationship of one unit or feature relative to another unit or feature as shown in the drawings. The spatial relative position terms can be intended to include different orientations of the device in use or work other than the orientation shown in the drawings.

[0030] For example, if the device in the figures is turned on its side, elements described as "below" 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 devices can be oriented in other ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0031] In the description of the present application, it is necessary to explain that, unless explicitly defined and limited otherwise, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] And it should be understood that although the terms first, second, etc. can be used herein to describe various elements or structures, these described objects should not be limited by these terms. These terms are only used to distinguish the described objects from each other. For example, a first drawer assembly can be called a second drawer assembly, and similarly, a second drawer assembly can also be called a first drawer assembly, which does not deviate from the protection scope of the present application.

[0033] The embodiment of the present application provides a refrigeration device, such as Figures 1 to 9 As shown, comprising an oxygen adjusting chamber 10, an oxygen adjusting module 20, an oxygen adjusting gas path 30 and a cold storage device, the oxygen adjusting gas path 30 connects the oxygen adjusting chamber 10 and the oxygen adjusting module 20, so as to transport the oxygen adjusting gas flow generated by the oxygen adjusting module 20 into the oxygen adjusting chamber 10, and the cold storage device is wrapped outside the oxygen adjusting gas path 30, and is used for cooling the oxygen adjusting gas flow in the oxygen adjusting gas path 30.

[0034] The oxygen adjusting module 20 generates heat when producing the oxygen adjusting gas flow, so that the temperature of the oxygen adjusting gas flow is too high. After the oxygen adjusting gas flow enters the oxygen adjusting chamber 10 through the oxygen adjusting gas path 30, the temperature of the oxygen adjusting chamber 10 is too high, which affects the storage of food materials in the oxygen adjusting chamber 10. The refrigeration device provided by the present application wraps the cold storage device outside the oxygen adjusting gas path 30, and the oxygen adjusting gas flow is cooled by the cold storage device when being transported in the oxygen adjusting gas path 30, so that the temperature rise in the oxygen adjusting chamber 10 caused by the heat generated by the oxygen adjusting module 20 can be avoided.

[0035] In some embodiments, the cold storage device is a cold storage material 40 capable of absorbing and storing cold, such as Figure 2The cold storage material 40 is wrapped outside the oxygen adjusting air path 30 and extends from the end of the oxygen adjusting air path 30 close to the oxygen adjusting module 20 to the end of the oxygen adjusting chamber 10, so that the oxygen adjusting air flow generated by the oxygen adjusting module 20 can be cooled by the cold storage material 40 after being output from the oxygen adjusting module 20.

[0036] In some embodiments, the length of the cold storage material 40 accounts for 2 / 3 of the length of the oxygen adjusting air path 30, so as to ensure that the cold storage material 40 can provide sufficient cold energy for the oxygen adjusting air flow in the conveying path.

[0037] In some embodiments, the wrapping thickness of the cold storage material 40 is 3-5 mm, which is sufficient to cool the oxygen adjusting air flow and does not occupy too much space of the refrigeration device.

[0038] In some embodiments, the cold storage material 40 is a eutectic phase change material prepared by mixing two or more phase change materials, such as a composition of octanoic acid and lauric acid, or a composition of dodecanol and octanoic acid.

[0039] Of course, the cold storage device can also be a device capable of generating cold energy by itself.

[0040] It should be noted that the connection relationship between the oxygen adjusting module 20 and the oxygen adjusting chamber 10 can adopt a common connection mode, which will not be described in detail below.

[0041] In some embodiments, the oxygen adjusting module 20 includes an oxygen generating chamber 203 for storing electrolyte, an anode conductive plate and a cathode conductive plate connected to the positive and negative poles of the power supply, respectively, and the anode conductive plate and the cathode conductive plate are at least partially immersed in the electrolyte.

[0042] As shown in Figures 3 to 5 In some embodiments, the oxygen adjusting module 20 further includes a housing 201 formed with a containing space 2011, a shell 202 formed with the oxygen generating chamber 203, the shell 202 is arranged in the containing space 2011, the anode conductive plate and the cathode conductive plate are arranged in the oxygen generating chamber 203 and one side or both sides are exposed to the electrolyte, the anode conductive plate is connected to the positive pole of the power supply, the cathode conductive plate is connected to the negative pole of the power supply, after being connected to the power supply, the cathode conductive plate absorbs oxygen from the air, a reduction reaction occurs, the reaction formula is O2+2H2O+4e - →4OH - , so that the air flowing through the cathode conductive plate becomes a lean oxygen adjusting air flow, the anode conductive plate undergoes an oxidation reaction through OH - in the electrolyte, and generates oxygen, the reaction formula is 4OH - →O2+2H2O+4e - , to obtain a rich oxygen adjusting air flow.

[0043] In some embodiments, the refrigeration equipment provided by the embodiments of 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 some embodiments, the refrigeration equipment provided by the embodiments of 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 7 In some embodiments, the refrigeration equipment provided by the embodiments of 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

[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, that is, the aforementioned oxygen adjusting chamber 10. 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 the temperature control chamber 50.

[0045] In some embodiments, the oxygen adjusting gas path 30 is in communication with the oxygen adjusting chamber 10, and the refrigeration equipment further comprises a refrigeration system in communication with the cavity formed by the first cylinder 11, the first drawer 12 and the cover 13, that is, the temperature control chamber 50. That is, by arranging an oxygen adjusting port (not shown) on the cover 13 or the first drawer 12, the oxygen adjusting chamber 10 and the oxygen adjusting gas path 30 are in communication through the oxygen adjusting port, so that the oxygen-rich or oxygen-poor gas flow generated by the oxygen adjusting module 20 enters the oxygen adjusting chamber 10 through the oxygen adjusting gas path 30, and the oxygen content of the oxygen adjusting chamber 10 is adjusted. The refrigeration system is in communication with the temperature control chamber 50, as shown in Figure 7 In some embodiments, the refrigeration equipment provided by the embodiments of 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

[0046] In other embodiments, contrary to the foregoing, the oxygen adjusting path 30 is in communication with the cavity formed by the first barrel 11, the first drawer 12, and the cover 13 (i.e., the temperature-controlled chamber 50); the cover 13 is provided with an oxygen adjusting through hole 131, and the oxygen adjusting through hole 131 is covered with an oxygen-permeable film 132; and the refrigeration system is in communication with the oxygen adjusting chamber 10. The cover 13 is provided with the oxygen adjusting through hole 131, and the oxygen adjusting through hole 131 is covered with the oxygen-permeable film 132, i.e., the oxygen in the oxygen adjusting chamber 10 and the temperature-controlled chamber 50 can pass through the oxygen-permeable film 132. (No figure is shown, but it can be Figure 3 For reference

[0047] When the oxygen adjusting path 30 is in communication with the temperature-controlled chamber 50, if the oxygen adjusting chamber 10 needs an oxygen-rich environment, the oxygen adjusting module 20 provides an oxygen-rich gas flow, and after the oxygen-rich gas flow enters the temperature-controlled chamber 50, the oxygen concentration in the temperature-controlled chamber 50 is high, and the oxygen concentration in the oxygen adjusting chamber 10 is low. Oxygen passes from the side with high concentration (the temperature-controlled chamber 50) to the side with low concentration (the oxygen adjusting chamber 10) through the oxygen-permeable film 132, thereby increasing the oxygen content in the oxygen adjusting chamber 10.

[0048] If the oxygen adjusting chamber 10 needs an oxygen-poor environment, the oxygen adjusting module 20 provides an oxygen-poor gas flow, and after the oxygen-poor gas flow enters the temperature-controlled chamber 50, the oxygen concentration in the temperature-controlled chamber 50 is low, and the oxygen concentration in the oxygen adjusting chamber 10 is high. Oxygen passes from the side with high concentration (the oxygen adjusting chamber 10) to the side with low concentration (the temperature-controlled chamber 50) through the oxygen-permeable film 132, thereby reducing the oxygen content in the oxygen adjusting chamber 10.

[0049] The refrigeration system of the refrigeration device can be directly in communication with the oxygen adjusting chamber 10 to directly control the temperature of the oxygen adjusting chamber 10.

[0050] In some embodiments, the refrigeration device provided by the present application further comprises a drawer assembly, which comprises a second barrel 21 with an opening facing forward and a second drawer 22 arranged in the second barrel 21. The second drawer 22 comprises a second front cover 221, which completely covers the opening on the front side of the second barrel 21. The second barrel 21 and the second front cover 221 form the oxygen adjusting chamber 10 therebetween.

[0051] The drawer assembly is not the same as the first drawer assembly 1 described above. The drawer assembly is referred to as the second drawer assembly 2. The second drawer assembly 2 does not divide the internal space of the second barrel 21 into two, but only has one (the second drawer 22 is located in the space). Similarly, the opening on the front side of the second barrel 21 is covered by the second front cover 221 of the second drawer 22 to form a sealed chamber, i.e., the oxygen adjusting chamber 10.

[0052] In some embodiments, the oxygen adjusting path 30 is in communication with the inside of the second barrel 21, Figure 9The second cylinder body 21 is provided with a through hole in communication with the second oxygen adjusting gas path 30, so that the oxygen-rich or oxygen-poor gas flow generated by the oxygen adjusting module 20 flows into the oxygen adjusting chamber 10 formed by the second cylinder body 21 after flowing through the oxygen adjusting gas path 30.

[0053] In some embodiments, the refrigeration device is further formed with a containing chamber 60 with an opening facing forward, such as Figure 9 In the embodiment, the rear wall of the containing chamber 60 is a wind channel cover plate, which is not shown, so that the containing chamber 60 in the figure is shown without a rear wall (in fact, there is a rear wall). The second drawer assembly 2 is arranged in the containing chamber 60, and the front end of the second cylinder body 21 is connected to the inner wall of the front end of the containing chamber 60. The refrigeration system is in communication with the containing chamber 60. As shown in Figure 9 As can be seen, the second drawer assembly 2 is surrounded by the containing chamber 60. Since the front end of the second cylinder body 21 is connected to the inner wall of the front end of the containing chamber 60, the containing chamber 60 forms a closed space due to the presence of the second drawer assembly 2, and has similar structure and function to the temperature control chamber 50 in the first drawer assembly 1. The oxygen flow entering the oxygen adjusting chamber 10 adjusts the oxygen concentration in the oxygen adjusting chamber 10. The refrigeration system is in communication with the containing chamber 60 outside the oxygen adjusting chamber 10, and the cold quantity is radiated to the oxygen adjusting chamber 10 to control the temperature of the oxygen adjusting chamber 10.

[0054] In some embodiments, as shown in Figure 9 In the embodiment, a moisture-permeable through hole 211 is arranged at the top of the second cylinder body 21, and a see-through film is arranged at the moisture-permeable through hole 211. According to the humidity requirement of the food stored in the oxygen adjusting chamber 10, the humidity in the oxygen adjusting chamber 10 can be controlled by the moisture-permeable film when the temperature of the oxygen adjusting chamber 10 is controlled by the refrigeration system.

[0055] When a high-humidity environment is required in the oxygen adjusting chamber 10, the cold air flowing into the containing chamber 60 is humidified, so that the humidity in the containing chamber 60 is relatively high, while the humidity in the oxygen adjusting chamber 10 is relatively low. Water vapor will pass through the moisture-permeable film from the side with high humidity (the containing chamber 60) to the side with low humidity (the oxygen adjusting chamber 10), so as to increase the humidity in the oxygen adjusting chamber 10.

[0056] When a low-humidity environment is required in the oxygen adjusting chamber 10, the cold air flowing into the containing chamber 60 is dehumidified, so that the humidity in the containing chamber 60 is relatively low, while the humidity in the oxygen adjusting chamber 10 is relatively high. Water vapor will pass through the moisture-permeable film from the side with high humidity (the oxygen adjusting chamber 10) to the side with low humidity (the containing chamber 60), so as to decrease the humidity in the oxygen adjusting chamber 10.

[0057] Of course, the oxygen adjusting through hole 131 can also be arranged on the top of the second cylinder body 21 (the cover body 13 in the first drawer assembly 1) or other positions and covered by the oxygen permeable film 132, so that the oxygen adjusting gas flow in the oxygen adjusting gas channel 30 is communicated into the containing chamber 60 and then into the oxygen adjusting chamber 10 through the oxygen permeable film 132. The specific oxygen permeable mode is described above and will not be repeated here.

[0058] In some embodiments, at least two drawer assemblies can be provided, which can be the first drawer assembly 1 and / or the second drawer assembly 2. The specific structure of the drawer assembly is not limited. Two of the at least two drawer assemblies are arranged close to each other, and the oxygen adjusting gas channel 30 is arranged between the two drawer assemblies arranged close to each other. The cold storage device wrapped around the oxygen adjusting gas channel 30 can absorb cold from the drawer assemblies and transfer the cold to the oxygen adjusting gas flow in the oxygen adjusting gas channel 30 for cooling treatment.

[0059] It should be understood that although the present specification is described in terms of embodiments, each embodiment does not necessarily contain only one independent technical solution. The description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be combined appropriately to form other embodiments that can be understood by those skilled in the art.

[0060] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present application, and are not intended to limit the protection scope of the present application. Any equivalent embodiments or changes made without departing from the spirit of the present application should be included in the protection scope of the present application.

Claims

1. A refrigeration appliance characterized in that, The oxygen adjusting device comprises an oxygen adjusting chamber (10), an oxygen adjusting module (20), an oxygen adjusting gas path (30) and a cold storage device, the oxygen adjusting gas path (30) is connected with the oxygen adjusting chamber (10) and the oxygen adjusting module (20) to transport the oxygen adjusting gas flow generated by the oxygen adjusting module (20) into the oxygen adjusting chamber (10), and the cold storage device is wrapped outside the oxygen adjusting gas path (30) to cool the oxygen adjusting gas flow in the oxygen adjusting gas path (30).

2. The refrigeration appliance of claim 1, wherein, The oxygen adjusting module (20) comprises an oxygen generating chamber (203) for storing electrolyte, an anode conductive plate and a cathode conductive plate connected with the positive and negative poles of a power supply respectively, and the anode conductive plate and the cathode conductive plate are at least partially soaked in the electrolyte.

3. The refrigeration appliance of claim 2, wherein, The drawer assembly comprises a cylinder body with a front opening, a drawer arranged in the cylinder body and a cover body (13) arranged on the top of the drawer, the drawer comprises a front cover which completely covers the front opening of the cylinder body, and the drawer and the cover body (13) form the oxygen adjusting chamber (10).

4. The refrigeration appliance of claim 3, wherein, The oxygen adjusting gas path (30) is communicated with the oxygen adjusting chamber (10), and the refrigeration device further comprises a refrigeration system which is communicated with a cavity formed by the cylinder body, the drawer and the cover body (13).

5. The refrigeration appliance of claim 3, wherein, The oxygen adjusting gas path (30) is communicated with the cavity formed by the cylinder body, the drawer and the cover body (13), the cover body (13) is provided with an oxygen adjusting through hole (131), the oxygen adjusting through hole (131) is covered with an oxygen permeable film (132), and the refrigeration device further comprises a refrigeration system which is communicated with the oxygen adjusting chamber (10).

6. The refrigeration appliance of claim 2, wherein, The drawer assembly comprises a cylinder body with a front opening and a drawer arranged in the cylinder body, the drawer comprises a front cover which completely covers the front opening of the cylinder body, and the cylinder body and the front cover form the oxygen adjusting chamber (10).

7. The refrigeration appliance of claim 6, wherein, The refrigeration device comprises a refrigeration system and is further formed with a containing cavity (60) with a front opening, the drawer assembly is arranged in the containing cavity (60), the front end of the cylinder body is connected with the inner wall of the front end of the containing cavity (60), and the refrigeration system is communicated with the containing cavity (60).

8. The refrigeration appliance of claim 7, wherein, The oxygen adjusting gas path (30) is communicated with the inside of the cylinder body.

9. The refrigeration appliance of claim 8, wherein, The cylinder body is provided with a humidity control through hole which is covered with a humidity permeable film.

10. The refrigeration appliance of claim 3 or 6, wherein, The drawer assembly is provided with at least two drawer assemblies, two of the at least two drawer assemblies are arranged close to each other, and the oxygen adjusting gas path (30) is arranged between the two drawer assemblies arranged close to each other.

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