Fresh-keeping nitrogen-making device and refrigerator provided with fresh-keeping nitrogen-making device

Abstract

The utility model relates to the technical field of refrigeration equipment, and provides a fresh-keeping and nitrogen-making device and a refrigerator provided with the fresh-keeping and nitrogen-making device. The fresh-keeping nitrogen-making device comprises an assembling part and a nitrogen-making part. The assembling part comprises a box body and a box cover arranged on the box body, and the box body and the box cover jointly define an assembling cavity. The two sides, in the first direction, of the box body are provided with lap joint parts correspondingly, and the lap joint parts are used for being connected with a refrigerator body. The box body is provided with a nitrogen discharging channel communicating with the assembling cavity and the nitrogen charging space, the nitrogen making component is arranged in the assembling cavity and at least provided with a nitrogen discharging opening, and the nitrogen discharging opening communicates with the nitrogen discharging channel and is used for introducing nitrogen into the nitrogen charging space. The fresh-keeping and nitrogen-making device can be directly installed in the refrigerator and does not need to move synchronously along with drawing of the drawer, and therefore the protection performance of an internal nitrogen-making structure is improved on the basis that nitrogen is prepared to be introduced into the drawer to achieve fresh keeping.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, and in particular to a fresh-keeping nitrogen-making device and a refrigerator equipped with the same. Background Art

[0002] Since food cells have a respiration function and consume oxygen to decompose their own nutrients during the respiration process, food spoilage occurs. Therefore, refrigerators are usually used to preserve food. For example, a vacuum fresh-keeping room is set up in the refrigerator, or the nitrogen concentration in the fresh-keeping room is increased. Both methods aim to reduce the oxygen concentration in the refrigerator and inhibit the respiration of food cells, thereby effectively delaying food spoilage and extending the shelf life.

[0003] In the related art, food is often placed in a drawer for preservation, so a nitrogen-generating structure is provided on the surface of the drawer to introduce nitrogen into the drawer to reduce the oxygen content in the drawer. However, because the nitrogen-generating structure is installed on the surface of the drawer, when the drawer is frequently pulled out to take out and put in food, the nitrogen-generating structure will also move synchronously, which may cause the nitrogen-generating structure to shake easily, which may cause the assembly to loosen over time, or even damage the components in the nitrogen-generating structure. Utility Model Content

[0004] Based on this, it is necessary to provide a fresh-keeping nitrogen-making device that does not need to move synchronously with the pulling and pulling of the drawer, and improves the protection of the internal nitrogen-making structure on the basis of meeting the requirements of nitrogen preparation to pass into the drawer to achieve fresh-keeping.

[0005] A fresh-keeping nitrogen-making device comprises an assembly component and a nitrogen-making component; the assembly component comprises a box body and a box cover arranged on the box body, and the two are jointly arranged to form an assembly cavity; the box body and / or the box cover are respectively provided with overlapping parts on both sides along a first direction, and the overlapping parts are used to connect with a refrigerator body; the box body is configured with a nitrogen exhaust channel connecting the assembly cavity and a nitrogen-filled space, the nitrogen-making component is arranged in the assembly cavity and has at least a nitrogen exhaust port, and the nitrogen exhaust port is connected with the nitrogen exhaust channel, and is used to introduce nitrogen into the nitrogen-filled space.

[0006] It can be understood that the assembly component is jointly enclosed by the box body and the box cover to form an assembly cavity to protect the nitrogen-making component installed in the assembly cavity, prevent the nitrogen-making component from being exposed and easily bumped by food or other structures, and improve the safety of assembly. Since the box body and / or the box cover are provided with overlapping parts on both sides along the first direction, it is convenient to directly install the fresh-keeping nitrogen-making device in the box body of the refrigerator. Therefore, when the user opens the nitrogen-filled space to take out and put food, the fresh-keeping nitrogen-making device will not be driven to move synchronously, thereby improving the overall protection of the module. At the same time, the nitrogen exhaust port of the nitrogen-making component is connected to the nitrogen exhaust channel on the box body, and since the nitrogen exhaust channel is connected to the nitrogen-filled space, the nitrogen generated by the nitrogen-making component can be sent into the nitrogen-filled space through the nitrogen exhaust port and the nitrogen exhaust channel, which is used to reduce the oxygen content in the nitrogen-filled space, thereby achieving a fresh-keeping effect.

[0007] In some embodiments, the box cover is in a flat plate shape, the box body is concavely provided with a groove, and the groove wall of the groove and the box cover together enclose the assembly cavity.

[0008] In some embodiments, the assembly component is arranged in a flat shape.

[0009] In some embodiments, the overlapping portion is provided with a clamping arm, and the clamping arm is provided with a clamping protrusion.

[0010] In some embodiments, the nitrogen-generating component includes a gas separator and an air intake pipe, an oxygen exhaust pipe, and a nitrogen exhaust pipe connected to the gas separator; the box body is also constructed with an oxygen exhaust channel and an air intake channel connected to the assembly cavity, the oxygen exhaust channel, the air intake channel, and the nitrogen exhaust channel are arranged at intervals, the nitrogen exhaust pipe is connected to the nitrogen exhaust channel, the oxygen exhaust pipe is connected to the oxygen exhaust channel, and the air intake pipe is connected to the air intake channel.

[0011] In some embodiments, the nitrogen exhaust channel is located in the middle or close to the middle of the box body along the first direction.

[0012] In some embodiments, a one-way valve is provided on the nitrogen exhaust pipe, and the one-way valve is used to guide the nitrogen to flow to the nitrogen exhaust channel through the gas separator; and / or, a regulating valve is provided on the oxygen exhaust pipe, and the regulating valve is used to adjust the opening and closing of the oxygen exhaust pipe.

[0013] In some of the embodiments, at least the box body is provided with a plurality of wiring tracks arranged at intervals on the side facing the assembly cavity, and each of the wiring tracks includes convex ribs arranged relatively and at intervals; and / or, at least the box body is provided with a plurality of wiring buckles arranged at intervals on the side facing the assembly cavity; and / or, at least the box body is provided with limit baffles arranged relatively and at intervals on the side facing the assembly cavity, and a plurality of ribs arranged at intervals along the length direction of the limit baffles are convex on the sides facing each other.

[0014] In some embodiments, the box body is provided with at least two suspension arms arranged at intervals on a side facing away from the assembly cavity, and the suspension arms are used to connect to an air pump.

[0015] The present application also provides a refrigerator, comprising:

[0016] A cabinet body having a cabinet cavity, wherein a cavity wall of the cabinet cavity is provided with a first boss and a second boss arranged at intervals in a vertical direction, and the first boss is located above the second boss;

[0017] A drawer, movably connected to the second boss;

[0018] The above-mentioned fresh-keeping nitrogen-making device is arranged on the first boss.

[0019] It can be understood that the fresh-keeping nitrogen-making device is stably assembled relative to the cabinet using the first boss so that the fresh-keeping nitrogen-making device is arranged above the drawer. When the drawer is pulled out to take out and put in food, the fresh-keeping nitrogen-making device will not be driven to move synchronously, thereby improving the overall protection of the module. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic diagram of the fresh-keeping nitrogen-making device provided in the present application with the lid of the box opened;

[0022] Figure 2 A schematic diagram of a fresh-keeping nitrogen-generating device provided in the present application being placed above a drawer;

[0023] Figure 3 A schematic diagram of a fresh-keeping nitrogen-making device without a box cover provided in the present application;

[0024] Figure 4 This is a schematic diagram of the box body of the fresh-keeping nitrogen-making device provided in the present application when viewed from above;

[0025] Figure 5 This is a schematic diagram of a box in the fresh-keeping nitrogen-making device provided in the present application when viewed from above;

[0026] Figure 6 A partial schematic diagram of the refrigerator provided for this application.

[0027] 1. The fresh-keeping nitrogen-making device; 110. The assembly part; 111. The box body; 112. The box cover; 113. The overlapping part; 114. The suspension arm; 115. The wiring track; 116. The wiring buckle; 117. The limit baffle; 120. The nitrogen-making component; 121. The gas separator; 122. The air inlet pipe; 123. The oxygen exhaust pipe; 124. The nitrogen exhaust pipe; 125. The one-way valve; 126. The regulating valve; 200. The drawer; 210. The cavity; 300. The cabinet body; 310. The cabinet cavity; 320. The stop strip; 1110. The groove; 1111. The nitrogen exhaust channel; 1112. The oxygen exhaust channel; 1113. The air inlet channel; 1131. The clamping arm; 1132. The clamping convex; 1151. The convex rib; 1171. The clamping rib. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0029] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0033] In the related art, drawers are usually set in the refrigerator body to store food, and because the drawers are convenient to pull out and open, they are more widely used. When using drawers for preservation, a nitrogen-generating structure is usually installed on the surface of the drawer, and the nitrogen-generating structure is used to generate nitrogen and pass it into the cavity of the drawer to reduce the oxygen content in the cavity and achieve a preservation effect. However, it is precisely because the nitrogen-generating structure is installed on the surface of the drawer that the nitrogen-generating structure moves synchronously every time the drawer is pulled out to take out food. When the food placed in the cavity is too heavy, or there are impurities between the drawer and the refrigerator body, which makes it inconvenient to pull out, it often requires more force to pull out the drawer, which can easily cause the drawer to shake and shake, etc., which causes the nitrogen-generating structure to shake and shake easily with the drawer. In the long run, it may cause the assembly to loosen, or even damage the components in the nitrogen-generating structure.

[0034] In view of this, an embodiment of the present application provides a fresh-keeping nitrogen-generating device that can be directly installed in the refrigerator body, so it does not need to move synchronously with the drawer, thereby improving the protection of the internal nitrogen-generating structure on the basis of meeting the requirements of nitrogen preparation to pass into the drawer to achieve fresh-keeping. The fresh-keeping nitrogen-generating device is described in detail below.

[0035] See also Figure 1 , Figure 2 and Figure 6Exemplarily, the fresh-keeping nitrogen-making device 100 includes an assembly component 110 and a nitrogen-making component 120. The assembly component 110 includes a box body 111 and a box cover 112 disposed on the box body 111, and the two are together arranged to form an assembly cavity (not shown in the figure). The box body 111 is provided with overlapping parts 113 on both sides along the first direction (for example, the X-axis direction), and the overlapping parts 113 are used to connect with the refrigerator box body (hereinafter referred to as the cabinet 300 in the embodiment of the refrigerator, and hereinafter referred to as the cabinet 300). The box body 111 is constructed with a nitrogen exhaust channel 1111 connecting the assembly cavity and the nitrogen-filled space (in this embodiment, the cavity 210 of the drawer 200 is used as the nitrogen-filled space, but not limited to this), and the nitrogen-making component 120 is disposed in the assembly cavity and has at least a nitrogen exhaust port, which is connected to the nitrogen exhaust channel 1111 for introducing nitrogen into the cavity 210.

[0036] It can be understood that the assembly component 110 is jointly enclosed by the box body 111 and the box cover 112 to form an assembly cavity, so as to protect the nitrogen-making component 120 installed in the assembly cavity, prevent the nitrogen-making component 120 from being exposed and easily bumped by food or other structures, and improve the assembly safety. Since the box body 111 is provided with overlapping parts 113 on both sides along the X-axis direction, it is convenient to directly install the fresh-keeping nitrogen-making device 100 in the cabinet 300 so that it is not directly related to the drawer 200. Therefore, when the drawer 200 is pulled out to take out and put in food, it will not drive the fresh-keeping nitrogen-making device 100 to move synchronously. In this way, even if the drawer 200 is bumped or shaken during the pulling process, it will not affect the fresh-keeping nitrogen-making device 100, ensuring that the nitrogen-making component 120 in the assembly cavity is stably assembled and improving the overall protection of the module. At the same time, the nitrogen exhaust port of the nitrogen generating component 120 is connected to the nitrogen exhaust channel 1111 on the box body 111, and since the nitrogen exhaust channel 1111 is connected to the cavity 210, the nitrogen generated by the nitrogen generating component 120 can be delivered into the cavity 210 via the nitrogen exhaust port and the nitrogen exhaust channel 1111, so as to reduce the oxygen content in the cavity 210, thereby achieving a freshness-preserving effect.

[0037] The fresh-keeping nitrogen-generating device 100 can be installed above the drawer 200, or can be installed at the side, rear, etc. It only needs to ensure that the fresh-keeping nitrogen-generating device 100 is installed on the cabinet 300 and does not move synchronously with the drawer 200.

[0038] Alternatively, the box cover 112 may have overlapping portions 113 extending from both sides along the X-axis direction, respectively, for connecting to the cabinet 300. In this case, the projection of the box cover 112 along the Z-axis direction (i.e., the vertical direction) may be greater than the projection of the box body 111 along the Z-axis direction. Alternatively, the box cover 112 and the box body 111 may have overlapping portions 113 extending from both sides along the X-axis direction, and the two overlapping portions 113 are connected to be connected to the cabinet 300 together, so as to support the fresh-keeping nitrogen-making device 100.

[0039] The box cover 112 and the box body 111 are snap-fitted, for example, a slot or a hole can be provided on one of the box cover 112 and the box body 111, and a protrusion can be provided on the other, and the protrusion can be snapped into the slot or the hole. Of course, screws can also be used for fixing.

[0040] like Figure 2 As shown, in some embodiments, the overlapping portion 113 is convexly provided with a clamping arm 1131, and the clamping arm 1131 is convexly provided with a clamping protrusion 1132. That is to say, the overlapping portion 113 can be overlapped on the supporting structure of the cabinet, and the clamping arm 1131 is clamped and matched with the supporting structure through the clamping protrusion 1132 to improve the connection reliability. Specifically, the clamping arm 1131 extends downward from the lower surface of the overlapping portion 113 along the Z-axis direction, and the clamping arm 1131 is convexly provided with a clamping protrusion 1132 on both sides of the Y-axis direction. At this time, a clamping groove for clamping the clamping arm 1131 can be provided on the supporting structure of the cabinet, and grooves are concavely provided on the two opposite groove walls of the clamping groove along the Y-axis direction. The clamping arm 1131 extends into the clamping groove, and the clamping protrusions 1132 on both sides are clamped and matched with the corresponding grooves to realize the assembly of the fresh-keeping nitrogen-making device 100 relative to the cabinet; and such a setting ensures that the fresh-keeping nitrogen-making device 100 will not be loosened when the drawer 200 is bumped, thereby improving the assembly reliability and protection.

[0041] Please continue reading Figure 1 , Figure 2 and Figure 6 Optionally, the box cover 112 is arranged in a flat plate shape. In this way, when the assembly component 110 is connected to the cabinet 300 by the overlapping portion 113, the box cover 112 can be used to hold food. Among them, the box body 111 is concavely provided with a groove 1110, and the groove wall of the groove 1110 and the flat box cover 112 are jointly arranged to form an assembly cavity. In other words, the upper surface of the box body 111 can be recessed downward along the Z-axis direction to form the groove 1110. When the box cover 112 is buckled into the notch of the groove 1110, they are jointly arranged to form an assembly cavity for assembling the nitrogen-making component 120, so as to avoid the nitrogen-making component 120 being exposed to the outside and improve the protection; and, such a setting can also reduce the size of the assembly component 110 along the Z-axis direction, which is more conducive to miniaturized design.

[0042] Furthermore, the assembly component 110 is arranged in a flat shape. Such an arrangement reduces the overall size of the fresh-keeping nitrogen-making device 100 along the Z-axis direction, thereby reducing the space occupied by the assembly, achieving a miniaturized design, and improving applicability. Moreover, the flat arrangement makes it possible to utilize the fresh-keeping nitrogen-making device 100 as a supporting structure for supporting food materials and install it in the cabinet 300, that is, it can replace the food material bracket or support plate, further simplifying the supporting structure in the cabinet 300, and realizing multiple uses of one item on the basis of achieving nitrogen production to reduce the oxygen content in the cavity 210 and achieve fresh-keeping.

[0043] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 Exemplarily, the nitrogen-generating component 120 includes a gas separator 121 and an air inlet pipe 122, an oxygen exhaust pipe 123, and a nitrogen exhaust pipe 124 connected to the gas separator 121, and the end of the nitrogen exhaust pipe 124 away from the gas separator 121 serves as the aforementioned nitrogen exhaust port. The box body 111 is also configured with an oxygen exhaust channel 1112 and an air inlet channel 1113 connected to the assembly cavity, and the oxygen exhaust channel 1112, the air inlet channel 1113, and the nitrogen exhaust channel 1111 are arranged at intervals. The nitrogen exhaust pipe 124 is connected to the nitrogen exhaust channel 1111, the oxygen exhaust pipe 123 is connected to the oxygen exhaust channel 1112, and the air inlet pipe 122 is connected to the air inlet channel 1113.

[0044] In this way, fresh air can be introduced into the gas separator 121 through the air inlet pipe 122, and nitrogen in the fresh air can be separated through the gas separator 121, and discharged from the nitrogen exhaust channel 1111 along the nitrogen exhaust pipe 124 to the cavity 210 of the drawer 200, so as to reduce the oxygen content in the cavity 210 and achieve a fresh-keeping effect. At the same time, the oxygen separated by the gas separator 121 can be discharged from the oxygen exhaust channel 1112 along the oxygen exhaust pipe 123 to the cabinet 300 to adjust the oxygen content in the cabinet 300 and help some ingredients maintain a fresh taste; and the method of delivering oxygen to the cabinet 300 also helps to control the ratio of various gases in the cabinet 300 and prevent the oxygen interaction between the ingredients from causing deterioration.

[0045] The gas separator 121 is arranged in a flat shape to match the assembly component 110. The oxygen exhaust pipe 123 is connected to one side of the gas separator 121 along the X-axis direction. The air intake pipe 122 and the nitrogen exhaust pipe 124 are both connected to the other side of the gas separator 121 along the X-axis direction, and the two are arranged at intervals along the Y-axis direction.

[0046] like Figure 3 and Figure 4 As shown, in some specific embodiments, the nitrogen exhaust channel 1111 is located in the middle or towards the middle of the box body 111 along the first direction to ensure the uniform distribution of the nitrogen input into the cavity. Among them, the nitrogen exhaust channel 1111, the oxygen exhaust channel 1112 and the air intake channel 1113 are all through-hole structures that penetrate along the thickness direction of the box body 111. The end of the nitrogen exhaust pipe 124 can be penetrated in the nitrogen exhaust channel 1111, or a convex column with a through hole is provided at the nitrogen exhaust channel 1111, and a convex plug is provided at the end of the nitrogen exhaust pipe 124. It mainly realizes the output of nitrogen to the cavity. The coordination of the oxygen exhaust channel 1112 and the oxygen exhaust pipe 123, and the coordination of the air intake pipe 122 and the air intake channel 1113 are basically similar to the coordination of the nitrogen exhaust pipe 124 and the nitrogen exhaust channel 1111, so they are not repeated.

[0047] See also Figure 1 and Figure 3 In actual use, a one-way valve 125 is provided on the nitrogen exhaust pipe 124, and the one-way valve 125 is used to guide the nitrogen to flow to the nitrogen exhaust channel 1111 through the gas separator 121. That is, the one-way valve 125 is used to ensure that the nitrogen separated by the gas separator 121 can be fully discharged into the cavity, and the gas in the cavity will not be reabsorbed into the gas separator 121, so as to effectively ensure the nitrogen content in the cavity. Among them, by adjusting the valve core of the one-way valve 125, the opening size can also be adjusted, and then the flow rate of the discharged nitrogen can be adjusted to achieve precise control of the nitrogen output. At the same time, a regulating valve 126 is provided on the oxygen exhaust pipe 123, and the regulating valve 126 is used to adjust the opening and closing of the oxygen exhaust pipe 123. When it is necessary to input oxygen into the cabinet to adjust the proportion of various gases, the regulating valve 126 can be opened; when oxygen is not needed, the regulating valve 126 is closed. Moreover, the oxygen flow rate can also be adjusted by adjusting the valve core of the regulating valve 126. Among them, the regulating valve 126 can adopt a solenoid valve for easy control.

[0048] Optionally, in order to realize gas transportation, the fresh-keeping nitrogen-making device 100 is also connected to an air pump. Figure 1 and Figure 4 As shown, specifically, the box body 111 is provided with at least two suspension arms 114 arranged at intervals on the side away from the assembly cavity, and the suspension arms 114 are used to connect the air pump. In other words, the air pump is installed outside the assembly cavity, which is equivalent to being isolated from the nitrogen making component 120. In this way, the vibration generated by the air pump when working will not be directly transmitted to the nitrogen making component 120, and the nitrogen making component 120 is prevented from being affected by the vibration as much as possible.

[0049] During actual assembly, the air pump is installed in the air pump box, and the air pump box is connected to the suspension arm 114. A first vibration damper can be installed between the air pump and the air pump box, and a second vibration damper can be installed between the air pump box and the suspension arm 114. In this way, double vibration damping can be formed, the first vibration damper is used to reduce the vibration transmitted to the air pump box via the air pump, and the second vibration damper is used to reduce the vibration transmitted to the box body 111 via the air pump box, thereby greatly reducing the vibration transmitted to the nitrogen production component 120 via the box body 111, thereby improving safety.

[0050] In some specific embodiments, the gas separator 121 is a molecular sieve tower, but is not limited thereto, as long as it can separate nitrogen and oxygen. The gas separator 121 in the nitrogen generating component 120 can be one, or two or more.

[0051] See also Figure 3 and Figure 5As some of the optional ones, the box body 111 is provided with a plurality of wiring tracks 115 arranged at intervals on the side facing the assembly cavity, and each wiring track 115 includes convex ribs 1151 arranged relative and at intervals. In this way, the aforementioned oxygen exhaust pipe 123, nitrogen exhaust pipe 124 and air intake pipe 122 can be respectively clamped on the corresponding wiring tracks 115, and fixed and wired through the wiring tracks 115, which is conducive to the orderly distribution of pipelines and avoids the disorderly entanglement and bending of pipelines to affect the gas transmission effect. Among them, some wiring tracks 115 have straight sections and bending sections to guide the bending of corresponding pipelines (such as oxygen exhaust pipe 123, nitrogen exhaust pipe 124 or air intake pipe 122). At the same time, the box body 111 is provided with a plurality of wiring buckles 116 arranged at intervals on the side facing the assembly cavity. Each wiring buckle 116 and each wiring track 115 are arranged at intervals to cooperate with each other to achieve the fixation of each pipe. Alternatively, a wiring track corresponding to the wiring track on the box body may be protruded from the side of the box cover facing the assembly cavity.

[0052] In some specific embodiments, the nitrogen exhaust pipe 124 is connected to the left side of the gas separator 121 along the X-axis direction, and because the nitrogen exhaust channel 1111 is located in the middle, a plurality of spaced routing tracks 115 can be provided for the nitrogen exhaust pipe 124, and at least one routing buckle 116 is provided between any two adjacent routing tracks 115. Such a setting can avoid the convex rib 1151 forming the routing track 115 from being too long and thus weakening the structural strength, and ensure a reliable fixing effect on the nitrogen exhaust pipe 124.

[0053] like Figure 5 As shown, further, the box body 111 is provided with relative and spaced apart limit baffles 117 on the side facing the assembly cavity, and the two sides facing each other of the two limit baffles 117 are protruding with a plurality of clamping ribs 1171 spaced apart along the length direction of the limit baffles 117, so as to constrain and limit the assembly of the gas separator 121, thereby improving the installation reliability of the gas separator 121.

[0054] See also Figure 2 and Figure 6 The present application also provides a refrigerator, including a cabinet body 300 having a cabinet cavity 310, a drawer 200 and the above-mentioned fresh-keeping nitrogen-making device 100. The cavity wall of the cabinet cavity 310 is convexly provided with a first boss and a second boss arranged at intervals in the vertical direction, and the first boss is located above the second boss. The drawer 200 is movably connected to the second boss, and the fresh-keeping nitrogen-making device 100 is arranged on the first boss. It can be understood that the fresh-keeping nitrogen-making device 100 is stably assembled relative to the cabinet body 300 using the first boss, so that the fresh-keeping nitrogen-making device 100 is arranged above the drawer 200. When the drawer 200 is pulled out to take out and put in food, the fresh-keeping nitrogen-making device 100 will not be driven to move synchronously, thereby improving the overall protection of the module.

[0055] Specifically, the drawer 200 can be slidably connected to the second boss, or can be connected in a rolling manner using a plurality of rollers arranged at intervals along the Y-axis direction, as long as the drawer 200 can be conveniently pulled out. The fresh-keeping nitrogen-making device 100 is installed above the drawer 200 through the first boss, and can serve as a fence on the upper surface of the drawer 200. When the drawer 200 is closed, the drawer 200 and the fresh-keeping nitrogen-making device 100 cooperate to enclose a space as closed as possible, effectively preserving the food in the cavity 210. Among them, a card slot for cooperating with the card arm 1131 on the overlap portion 113 is provided on the rear side of the first boss along the Y-axis direction. At the same time, a stop bar 320 is provided on the front side of the first boss along the Y-axis direction, and the stop bar 320 is used to stop on the front side of the fresh-keeping nitrogen-making device 100 along the Y-axis direction to improve assembly reliability.

[0056] It is worth noting that two of the first boss, the second boss and the stop bar 320 are provided along the X-axis direction and are arranged opposite to and at intervals in the cabinet 300 .

[0057] The front side here refers to the side closer to the user pulling.

[0058] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A fresh-keeping nitrogen-making device, characterized in that: It comprises an assembly component (110) and a nitrogen production component (120); The assembly component (110) comprises a box body (111) and a box cover (112) arranged on the box body (111), and the two together enclose an assembly cavity; The box body (111) and / or the box cover (112) are respectively provided with overlapping portions (113) on both sides along the first direction, and the overlapping portions (113) are used to be connected to the refrigerator body; The box body (111) is configured with a nitrogen exhaust passage (1111) communicating with the assembly chamber and the nitrogen-filled space; the nitrogen-generating component (120) is disposed in the assembly chamber and has at least a nitrogen exhaust port, the nitrogen exhaust port being communicated with the nitrogen exhaust passage (1111) and being used to introduce nitrogen into the nitrogen-filled space.

2. The fresh-keeping nitrogen-making device according to claim 1, characterized in that: The box cover (112) is arranged in a flat plate shape, the box body (111) is provided with a groove (1110), and the groove wall of the groove (1110) and the box cover (112) are jointly arranged to form the assembly cavity.

3. The fresh-keeping nitrogen-making device according to claim 1, characterized in that: The assembly component (110) is arranged in a flat shape.

4. The fresh-keeping nitrogen-making device according to claim 1, characterized in that: The overlapping portion (113) is provided with a clamping arm (1131) protrudingly, and the clamping arm (1131) is provided with a clamping protrusion (1132) protrudingly.

5. The fresh-keeping nitrogen-making device according to any one of claims 1 to 4, characterized in that: The nitrogen-generating component (120) comprises a gas separator (121), and an air inlet pipe (122), an oxygen exhaust pipe (123), and a nitrogen exhaust pipe (124) connected to the gas separator (121); The box body (111) is further configured with an oxygen exhaust channel (1112) and an air intake channel (1113) connected to the assembly cavity; the oxygen exhaust channel (1112), the air intake channel (1113) and the nitrogen exhaust channel (1111) are arranged at intervals; the nitrogen exhaust pipe (124) is connected to the nitrogen exhaust channel (1111); the oxygen exhaust pipe (123) is connected to the oxygen exhaust channel (1112); and the air intake pipe (122) is connected to the air intake channel (1113).

6. The fresh-keeping nitrogen-making device according to claim 5, characterized in that: The nitrogen exhaust channel (1111) is located in the middle or close to the middle of the box body (111) along the first direction.

7. The fresh-keeping nitrogen-making device according to claim 6, characterized in that: The nitrogen exhaust pipe (124) is provided with a one-way valve (125), and the one-way valve (125) is used to guide the nitrogen to flow to the nitrogen exhaust channel (1111) through the gas separator (121); and / or, the oxygen exhaust pipe (123) is provided with a regulating valve (126), and the regulating valve (126) is used to adjust the opening and closing of the oxygen exhaust pipe (123).

8. The fresh-keeping nitrogen-making device according to claim 6, characterized in that: At least the box body (111) is provided with a plurality of wiring tracks (115) arranged at intervals on a side facing the assembly cavity, and each of the wiring tracks (115) comprises convex ribs (1151) arranged oppositely and at intervals; and / or, at least the box body (111) is provided with a plurality of wiring buckles (116) arranged at intervals on a side facing the assembly cavity; and / or, At least the box body (111) is provided with opposing and spaced limiting baffles (117) on one side facing the assembly cavity, and a plurality of retaining ribs (1171) spaced along the length direction of the limiting baffles (117) are protruded from the opposite sides of the two limiting baffles (117).

9. The fresh-keeping nitrogen-making device according to claim 1, characterized in that: The box body (111) is provided with at least two suspension arms (114) arranged at intervals on a side facing away from the assembly cavity, and the suspension arms (114) are used to connect to an air pump.

10. A refrigerator, characterized in that: include: A cabinet body (300) having a cabinet cavity (310), wherein a cavity wall of the cabinet cavity (310) is provided with a first boss and a second boss arranged at intervals in a vertical direction, and the first boss is located above the second boss; A drawer (200) movably connected to the second boss; The fresh-keeping nitrogen-making device according to any one of claims 1 to 9 is arranged on the first boss.

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