Refrigerator nitrogen making device and refrigerator comprising same

Abstract

The utility model provides a refrigerator nitrogen making device and a refrigerator comprising the same. The refrigerator nitrogen making device comprises an air pump assembly and a bottom plate, the air pump assembly comprises an air pump and an air pump box, the air pump box is provided with a top end and a bottom end in the height direction, and the top end of the air pump box is connected to the bottom plate; in the height direction, the air pump is provided with a top end and a bottom end, an upper containing area is defined by the top end of the air pump and the inner wall of the top end of the air pump box, and a lower containing area is defined by the bottom end of the air pump and the inner wall of the bottom end of the air pump box. The air pump assembly further comprises a lower buffering piece, the lower buffering piece is made of elastic materials and located in the lower containing area, and the air pump is arranged on the lower buffering piece. Due to the arrangement of the lower buffering piece, the bottom end of the air pump and the inner wall of the bottom end of the air pump box do not make direct contact, buffering is conducted through the lower buffering piece, the lower buffering piece can play a role in vibration reduction, vibration transmission can be reduced, and reduction of overall vibration of the refrigerator nitrogen making device is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of refrigerators, and particularly to a nitrogen generation device for a refrigerator and a refrigerator including the same. Background Art

[0002] Modern people pay attention to health, and the freshness of food is getting more and more attention. Nitrogen is a common preservative and is widely used in refrigerators. The importance of nitrogen lies in that it can effectively inhibit the growth of microorganisms and extend the freshness period of food. Replacing the air in the refrigerator with nitrogen can reduce the influence of food oxidation, thereby maintaining the freshness and taste of food. For example, foods such as vegetables and fruits will undergo respiration during storage, generating a certain amount of carbon dioxide, moisture and heat. Nitrogen can effectively delay this process and keep the food fresh for a longer time. In addition, using nitrogen can avoid the appearance of peculiar smell in the refrigerator and make the food purer.

[0003] Nitrogen can also be used as a refrigeration medium for refrigerators. In freezing and refrigerating refrigerators, the refrigerant is the medium that undertakes the refrigeration function. In the refrigeration of refrigerators and low-temperature refrigerators, nitrogen is also often used as an auxiliary refrigeration medium, which can achieve better refrigeration effects.

[0004] Therefore, nitrogen is widely used in refrigerators, which can help people better preserve freshness and refrigerate. Correspondingly, the nitrogen generation module of the refrigerator is also a relatively important structure in the refrigerator.

[0005] The nitrogen generation module of a refrigerator usually includes a bottom plate, a nitrogen generator and an air pump assembly. The air pump assembly includes an air pump and an air pump box. The air pump is arranged in the air pump box, and the nitrogen generator and the air pump assembly are installed on the bottom plate. In the current nitrogen generation module of the refrigerator, the internal air pump is prone to collide with the structure of the air pump box, resulting in an increase in structural vibration and affecting subsequent normal use. Therefore, it is necessary to take protective measures. During the working process, since the air pump is the main excitation source of the nitrogen generation module, in order to reduce the overall vibration level of the module, it is also necessary to design a vibration damping structure for the air pump. However, in the prior art, the nitrogen generation module of the refrigerator generally has the defect of large vibration. Summary of the Utility Model

[0006] The technical problem to be solved by the utility model is to overcome the defect of large vibration of the nitrogen generation module of the refrigerator in the prior art, and provide a nitrogen generation device for a refrigerator and a refrigerator including the same.

[0007] The utility model solves the above technical problems through the following technical solutions:

[0008] A nitrogen generation device for a refrigerator includes an air pump assembly and a bottom plate. The air pump assembly includes an air pump and an air pump box for accommodating the air pump. The air pump box has a top end and a bottom end in the height direction, and the top end of the air pump box is connected to the bottom plate;

[0009] Along the height direction, the air pump has a top end and a bottom end, the top end of the air pump and the inner wall of the top end of the air pump box form an upper accommodating area, and the bottom end of the air pump and the inner wall of the bottom end of the air pump box form a lower accommodating area;

[0010] The air pump assembly further comprises a lower buffer, the lower buffer is located in the lower accommodating area, and the air pump is arranged on the lower buffer;

[0011] Wherein, the lower buffer is made of elastic material.

[0012] In this solution, a lower buffer is provided between the bottom of the air pump and the inner wall of the bottom of the air pump box. There is no direct contact between the bottom of the air pump and the inner wall of the bottom of the air pump box, and the lower buffer is used for buffering. The lower buffer can play a role in vibration reduction, which can reduce the transmission of vibration and help reduce the overall vibration of the refrigerator nitrogen making device. At the same time, the top of the air pump box can prevent the air pump from escaping from the air pump box, which is conducive to the air pump being more reliably arranged in the air pump box. A gap is formed between the top of the air pump and the inner wall of the top of the air pump, which is conducive to avoiding direct contact between the air pump and the air pump box, and can also reduce the transmission of vibration to a certain extent, which is conducive to further reducing the overall vibration of the refrigerator nitrogen making device.

[0013] Preferably, the lower buffer member has a first accommodating cavity on a side facing the air pump, the shape of the first accommodating cavity is adapted to the shape of the bottom end of the air pump, and the bottom end of the air pump is embedded in the first accommodating cavity.

[0014] In this solution, the above-mentioned structure is adopted, and the bottom end of the air pump is embedded in the first accommodation cavity of the lower buffer. The bottom end of the air pump and the lower buffer are in soft contact, and the connection between the air pump and the air pump box can be realized without relying on an external connection structure, which is conducive to further reducing the transmission of vibration, and thus is conducive to further reducing vibration. In addition, the bottom end of the air pump is embedded in the first accommodation cavity, which is conducive to reducing the height of the air pump along the height direction after the air pump and the lower buffer are matched, thereby helping to reduce the space occupied in the air pump box, thereby reducing the space requirement for the air pump box, and thus helping to reduce the space occupied by the refrigerator nitrogen making device as a whole.

[0015] Preferably, one side of the inner wall of the lower buffer member facing the bottom end of the air pump box has a plurality of support columns arranged at intervals, and one end of the plurality of support columns facing away from the lower buffer member abuts against the inner wall of the bottom end of the air pump box.

[0016] In this solution, the lower buffer member contacts the inner wall of the bottom end of the air pump box through multiple support columns, which helps to reduce the contact area, thereby helping to reduce the stiffness of the lower buffer member in the horizontal direction, and further helping to further reduce vibration transmission.

[0017] Preferably, a plurality of recessed portions are provided on the inner wall of the bottom end of the air pump box;

[0018] One end of each of the plurality of support columns which is away from the lower buffer member is inserted into each of the plurality of recessed portions in a one-to-one correspondence.

[0019] In this solution, the above-mentioned structure is adopted, and the end of the support column is inserted into the recessed part on the inner wall of the bottom end of the air pump box, so that the connection between the support column and the recessed part can be realized without relying on an external connection structure, which is conducive to further reducing the transmission of vibration, thereby further reducing vibration. In addition, the end of the support column is inserted into the recessed part, which is conducive to reducing the space occupied by the lower buffer in the air pump box, thereby reducing the space requirement for the air pump box, and thereby reducing the space occupied by the refrigerator nitrogen making device as a whole.

[0020] Preferably, the air pump assembly further comprises an upper buffer member, the upper buffer member is located in the upper accommodating area and is mounted on the top end of the air pump;

[0021] Wherein, the upper buffer component is made of elastic material.

[0022] In this solution, the above-mentioned structure is adopted, and there is no direct contact between the top of the air pump and the inner wall of the top of the air pump box, and the upper buffer is used for buffering. The upper buffer can play a role in vibration reduction, which can further reduce the transmission of vibration and help reduce the overall vibration of the refrigerator nitrogen making device. The upper buffer cooperates with the lower buffer so that the top and bottom of the air pump are not in direct contact with the air pump box, which can greatly reduce the transmission of vibration, thereby better protecting the air pump and reducing the vibration level of the refrigerator nitrogen making device.

[0023] Preferably, a gap is formed between the upper buffer member facing the top end of the air pump box and the inner wall of the top end of the air pump box;

[0024] And / or, the upper buffer member has a second accommodating cavity on a side facing the air pump, the shape of the second accommodating cavity is adapted to the shape of the top end of the air pump, and the top end of the air pump is embedded in the second accommodating cavity.

[0025] In this solution, with the above structure, the gap between the side of the upper buffer member facing the top of the air pump box and the inner wall of the top of the air pump box makes it difficult for the upper buffer member to collide with the inner wall of the air pump box, thereby further reducing the transmission of vibration and being beneficial to further reducing the vibration level of the nitrogen generation device in the refrigerator. In addition, the top of the air pump is embedded in the second accommodation cavity of the upper buffer member, and the top of the air pump is in soft contact with the upper buffer member, so that the connection between the air pump and the air pump box can be realized without relying on an external connection structure, which is beneficial to further reducing the transmission of vibration and thus beneficial to further reducing vibration. In addition, the top of the air pump is embedded in the second accommodation cavity, which is beneficial to reducing the height in the height direction after the air pump and the upper buffer member are matched, thereby being beneficial to reducing the space occupied in the air pump box, and further being able to reduce the space requirement for the air pump box, and further being beneficial to reducing the overall space occupied by the nitrogen generation device in the refrigerator.

[0026] Preferably, an installation groove is formed at the position on the bottom plate for installing the top of the air pump box, the top of the air pump box is located in the installation groove, and an intermediate buffer member made of an elastic material is provided between the top of the air pump box and the wall surface of the installation groove, and the air pump box and the bottom plate are threadedly connected by fasteners;

[0027] And / or, the air pump box includes an upper cover and a lower cover along the height direction, the upper cover and the lower cover are spliced, and a sealing member is provided at the splicing position of the upper cover and the lower cover.

[0028] In this solution, the setting of the intermediate buffer member can play a role in damping vibration, which is beneficial to reducing the vibration transmission between the air pump box and the bottom plate and is beneficial to further reducing the vibration level of the nitrogen generation device in the refrigerator. The air pump box and the bottom plate are threadedly connected by fasteners, and the connection is reliable, which is beneficial to improving the overall stiffness of the nitrogen generation device in the refrigerator and thus is also beneficial to further reducing the vibration level of the nitrogen generation device in the refrigerator. In addition, the air pump box includes an upper cover and a lower cover that are spliced, which is convenient for putting the air pump, the upper buffer member, and the lower buffer member into the air pump box or taking out the air pump, the upper buffer member, and the lower buffer member from the air pump box. In addition, the upper cover and the lower cover are hermetically connected at the splicing position, which can isolate the air pump box from the external environment and is beneficial to ensuring the normal use of the nitrogen generation device in the refrigerator.

[0029] Preferably, step portions are formed on opposite sides of the top of the air pump box, and two engaging portions are formed on the bottom plate and arranged oppositely. The engaging portions extend outward from the side of the bottom plate facing the air pump box and form a bent portion at the end. The bent portions of the two engaging portions are arranged facing each other. The two engaging portions are used to enclose the installation groove, and the two engaging portions are respectively engaged with the two step portions, and the intermediate buffer member is provided between the wall surface of the engaging portion and the corresponding step portion, and the intermediate buffer member is sleeved on the step portion.

[0030] In this solution, the cooperation between the clamping part and the step part can relatively reliably limit the top end of the air pump box at the position corresponding to the installation groove of the bottom plate. In addition, the setting of the intermediate buffer can reduce the vibration transmission between the air pump box and the bottom plate, which is beneficial to further reducing the vibration level of the nitrogen generation device in the refrigerator.

[0031] Preferably, a side buffer assembly is further provided on the side of the bottom plate facing the air pump box. The side buffer assembly is located between the two clamping parts and is used to form the installation groove together with the two clamping parts;

[0032] The side buffer assembly includes a connecting part and a side buffer provided on the connecting part. The side wall of the air pump box on the side corresponding to the side buffer is provided with a matching part, and the side buffer is sleeved on the matching part;

[0033] Perforations are provided in the connecting part, the side buffer, and the matching part. The perforations are for the connecting pipe connected to the air pump to pass through, and / or, mounting holes are provided in the connecting part, the side buffer, and the matching part. The bottom plate and the air pump box are threadedly connected through the mounting holes.

[0034] In this solution, with the above structural settings, on the one hand, the side buffer assembly can provide a carrier for the passing of the connecting pipe of the air pump and / or the setting of the connecting structure for realizing the connection between the bottom plate and the air pump box; on the other hand, the side buffer assembly is beneficial to further reducing the vibration transmission between the air pump box and the bottom plate, and thus is beneficial to further reducing the vibration level of the nitrogen generation device in the refrigerator.

[0035] The present utility model also provides a refrigerator, which includes the above nitrogen generation device in the refrigerator.

[0036] The positive and progressive effects of the present utility model are as follows:

[0037] In this nitrogen generation device in the refrigerator, a lower buffer is provided between the bottom end of the air pump and the inner wall of the bottom end of the air pump box. There is no direct contact between the bottom end of the air pump and the inner wall of the bottom end of the air pump box, and buffering is carried out through the lower buffer. The lower buffer can play a role in reducing vibration and can reduce the transmission of vibration, which is beneficial to reducing the overall vibration of the nitrogen generation device in the refrigerator. At the same time, the top end of the air pump box can prevent the air pump from jumping out of the air pump box, which is beneficial to the air pump being relatively reliably arranged in the air pump box. A gap is formed between the top end of the air pump and the inner wall of the top end of the air pump. This gap is beneficial to avoiding direct contact between the air pump and the air pump box and can also reduce the transmission of vibration to a certain extent, which is beneficial to further reducing the overall vibration of the nitrogen generation device in the refrigerator. Description of the Drawings

[0038] Figure 1Partial structural schematic diagram of the nitrogen generation device in a refrigerator according to an embodiment of the present utility model.

[0039] Figure 2 Another partial structural schematic diagram of the nitrogen generation device in a refrigerator according to an embodiment of the present utility model, showing the air pump assembly and the bottom plate in the figure.

[0040] Figure 3 Another partial structural schematic diagram of the nitrogen generation device in a refrigerator according to an embodiment of the present utility model, showing the part of the bottom plate for connecting with the air pump assembly in the figure.

[0041] Figure 4 Another partial structural schematic diagram of the nitrogen generation device in a refrigerator according to an embodiment of the present utility model, showing the air pump assembly and the side buffer assembly in the figure.

[0042] Figure 5 Another partial structural schematic diagram of the nitrogen generation device in a refrigerator according to an embodiment of the present utility model, showing the upper cover and the bottom plate in the figure.

[0043] Figure 6 Structural schematic diagram of the air pump assembly of the nitrogen generation device in a refrigerator according to an embodiment of the present utility model.

[0044] Figure 7 Internal structural schematic diagram of the air pump assembly of the nitrogen generation device in a refrigerator according to an embodiment of the present utility model.

[0045] Figure 8 Structural schematic diagram of the upper cover of the nitrogen generation device in a refrigerator according to an embodiment of the present utility model.

[0046] Figure 9 Another structural schematic diagram of the upper cover of the nitrogen generation device in a refrigerator according to an embodiment of the present utility model.

[0047] Figure 10 Structural schematic diagram of the side buffer member of the nitrogen generation device in a refrigerator according to an embodiment of the present utility model.

[0048] Figure 11 Structural schematic diagram of the side buffer assembly of the nitrogen generation device in a refrigerator according to an embodiment of the present utility model.

[0049] Figure 12 Structural schematic diagram of the lower buffer member of the nitrogen generation device in a refrigerator according to an embodiment of the present utility model.

[0050] Figure 13 Structural schematic diagram of the lower cover of the nitrogen generation device in a refrigerator according to an embodiment of the present utility model.

[0051] Figure 14 Another partial structural schematic diagram of the pump assembly of the nitrogen generation device in a refrigerator according to an embodiment of the present utility model, showing the upper cover, the upper buffer member, the air pump and the lower buffer member in the figure.

[0052] Figure 15 This is another structural schematic diagram of the pump assembly in the nitrogen generation device of a refrigerator according to an embodiment of the present invention. The upper buffer member, the air pump, and the lower buffer member are shown in the figure.

[0053] Description of the reference numerals:

[0054] 10 Base plate

[0055] 101 Installation groove

[0056] 102 Intermediate buffer member

[0057] 103 Engaging portion

[0058] 1031 Bending portion

[0059] 104 Side buffer assembly

[0060] 1041 Connecting portion

[0061] 1042 Side buffer member

[0062] 20 Air pump assembly

[0063] 30 Air pump

[0064] 40 Air pump box

[0065] 401 Upper cover

[0066] 402 Lower cover

[0067] 403 Sealing member

[0068] 404 Concave portion

[0069] 405 Step portion

[0070] 406 Fitting portion

[0071] 50 Upper buffer member

[0072] 501 Second accommodating cavity

[0073] 60 Lower buffer member

[0074] 601 First accommodating cavity

[0075] 602 Support column

[0076] 70 Perforation

[0077] 80 Installation hole

[0078] 90 Connecting pipe

[0079] 100 Nitrogen generator Detailed implementation manners

[0080] The following is a preferred embodiment, and the present utility model will be more clearly and completely described in conjunction with the accompanying drawings.

[0081] As shown in Figures 1 to 15 this embodiment provides a nitrogen generation device for a refrigerator. Specifically, the nitrogen generation device for the refrigerator includes an air pump assembly 20 and a bottom plate 10. The air pump assembly 20 includes an air pump 30 and an air pump box 40 for accommodating the air pump 30. The air pump box 40 has a top end and a bottom end in the height direction, and the top end of the air pump box 40 is connected to the bottom plate 10. In the height direction, the air pump 30 has a top end and a bottom end. An upper accommodation area is formed between the top end of the air pump 30 and the inner wall of the top end of the air pump box 40, and a lower accommodation area is formed between the bottom end of the air pump 30 and the inner wall of the bottom end of the air pump box 40. The air pump assembly 20 further includes a lower buffer 60. The lower buffer 60 is located in the lower accommodation area, and the air pump 30 is disposed on the lower buffer 60. Among them, the lower buffer 60 is made of an elastic material.

[0082] In this embodiment, a lower buffer 60 is provided between the bottom end of the air pump 30 and the inner wall of the bottom end of the air pump box 40. There is no direct contact between the bottom end of the air pump 30 and the inner wall of the bottom end of the air pump box 40, and buffering is carried out through the lower buffer 60. The lower buffer 60 can play a role in vibration reduction, can reduce the transmission of vibration, and is beneficial to reducing the overall vibration of the nitrogen generation device for the refrigerator. At the same time, the top end of the air pump box 40 can prevent the air pump 30 from jumping out of the air pump box 40, which is beneficial to the reliable setting of the air pump 30 in the air pump box 40. A gap is formed between the top end of the air pump 30 and the inner wall of the top end of the air pump 30. This gap is beneficial to avoiding direct contact between the air pump 30 and the air pump box 40, and can also reduce the transmission of vibration to a certain extent, which is beneficial to further reducing the overall vibration of the nitrogen generation device for the refrigerator.

[0083] It should be noted that as a preferred setting method, the material of the lower buffer 60 in this embodiment is rubber. In other alternative embodiments, the material of the lower buffer 60 can also be other elastic materials applicable to this.

[0084] In addition, as a preferred setting method, in this embodiment, the air pump 30 and the air pump box 40 are coaxially arranged. In other alternative embodiments, there can also be a certain deviation between the axes of the air pump 30 and the air pump box 40.

[0085] As shown in Figure 1 , Figure 2 , Figures 4 to 9 , Figure 13 and Figure 14As shown, the air pump box 40 includes an upper cover 401 and a lower cover 402 along the height direction, the upper cover 401 and the lower cover 402 are spliced, and a sealing member 403 is provided at the splicing position of the upper cover 401 and the lower cover 402. Among them, the air pump box 40 includes the spliced ​​upper cover 401 and the lower cover 402, which are convenient for putting the air pump 30, the upper buffer 50 and the lower buffer 60 into the air pump box 40 or taking out the air pump 30, the upper buffer 50 and the lower buffer 60 from the air pump box 40. In addition, the upper cover 401 and the lower cover 402 are sealed and connected at the splicing position, which can isolate the air pump box 40 from the external environment, which is conducive to ensuring the normal use of the refrigerator nitrogen making device.

[0086] Correspondingly, the upper accommodating area is surrounded by the top of the air pump 30 and the inner wall of the top of the upper cover 401 , and the lower accommodating area is surrounded by the bottom of the air pump 30 and the inner wall of the bottom of the lower cover 402 .

[0087] like Figure 7 , Figure 12 and Figure 15 As shown, the lower buffer 60 has a first accommodating cavity 601 on one side facing the air pump 30, and the shape of the first accommodating cavity 601 is adapted to the shape of the bottom end of the air pump 30, and the bottom end of the air pump 30 is embedded in the first accommodating cavity 601. In this way, the bottom end of the air pump 30 is embedded in the first accommodating cavity 601 of the lower buffer 60, and the bottom end of the air pump 30 and the lower buffer 60 are in soft contact, and the connection between the air pump 30 and the air pump box 40 can be realized without relying on an external connection structure, which is conducive to further reducing the transmission of vibration, and further conducive to further reducing vibration. In addition, the bottom end of the air pump 30 is embedded in the first accommodating cavity 601, which is conducive to reducing the height of the air pump 30 along the height direction after the air pump 30 and the lower buffer 60 cooperate, so as to reduce the space occupied in the air pump box 40, and then reduce the space demand for the air pump box 40, and then help reduce the space occupied by the refrigerator nitrogen making device as a whole.

[0088] It should be noted that the specific shape of the first accommodating cavity 601 is not particularly limited here, as long as it can be compatible with the bottom end of the air pump 30.

[0089] like Figure 7 , Figures 12 to 15 As shown, the lower buffer 60 has a plurality of support columns 602 arranged at intervals on one side of the inner wall facing the bottom end of the air pump box 40, and one end of the plurality of support columns 602 facing away from the lower buffer 60 abuts against the inner wall of the bottom end of the air pump box 40. The lower buffer 60 contacts the inner wall of the bottom end of the air pump box 40 through the plurality of support columns 602, which is conducive to reducing the contact area, thereby helping to reduce the rigidity of the lower buffer 60 in the horizontal direction, and further helping to reduce vibration transmission.

[0090] It should be noted that multiple support columns 602 are evenly distributed on the bottom surface of the lower buffer member 60. In this embodiment, as a preferred setting method, six support columns 602 are provided on the bottom surface of the lower buffer member 60.

[0091] Furthermore, at least with reference to Figure 14 it can be understood that the cross-sectional shape of the support column 602 is circular, and the end surface of the support column 602 is a plane. Such a setting is conducive to realizing the reliable support of the air pump box 40 on the lower buffer member 60, thereby facilitating ensuring that the overall vibration level of the refrigerator nitrogen generation device is controlled within a preset range.

[0092] Furthermore, at least with reference to Figure 13 it can be understood that a plurality of recessed portions 404 are provided on the inner wall of the bottom end of the air pump box 40, and one end of each of the plurality of support columns 602 facing away from the lower buffer member 60 is inserted into the plurality of recessed portions 404 in a one-to-one correspondence.

[0093] With such a setting, the end of the support column 602 is inserted into the recessed portion 404 on the inner wall of the bottom end of the air pump box 40, and the connection between the support column 602 and the recessed portion 404 can be realized without relying on an external connection structure, which is conducive to further reducing the transmission of vibration, and thus conducive to further reducing vibration. In addition, the end of the support column 602 is inserted into the recessed portion 404, which is conducive to reducing the space occupied by the lower buffer member 60 in the air pump box 40, and thus can reduce the space requirement for the air pump box 40, and further is conducive to reducing the overall space occupied by the refrigerator nitrogen generation device.

[0094] In addition, as Figure 7 、 Figure 14 and Figure 15 shown, the air pump assembly 20 further includes an upper buffer member 50. The upper buffer member 50 is located in the upper accommodation area and is installed on the top end of the air pump 30. Among them, the upper buffer member 50 is made of an elastic material. Among them, there is no direct contact between the top end of the air pump 30 and the inner wall of the top end of the air pump box 40, and buffering is carried out through the upper buffer member 50. The upper buffer member 50 can play a role in vibration reduction, can further reduce the transmission of vibration, and is conducive to reducing the overall vibration of the refrigerator nitrogen generation device. The upper buffer member 50 cooperates with the lower buffer member 60, so that the top end and the bottom end of the air pump 30 are not in direct contact with the air pump box 40, which can largely reduce the transmission of vibration, and thus can better protect the air pump 30 and reduce the vibration level of the refrigerator nitrogen generation device.

[0095] At least with reference to Figure 7It is understood that a gap is formed between the upper buffer member 50 and the inner wall of the top end of the air pump box 40 on the side facing the top end of the air pump box 40. Optionally or alternatively, the side of the upper buffer member 50 facing the air pump 30 has a second accommodation cavity 501, and the shape of the second accommodation cavity 501 is adapted to the shape of the top end of the air pump 30, and the top end of the air pump 30 is embedded in the second accommodation cavity 501.

[0096] Among them, the gap between the side of the upper buffer member 50 facing the top end of the air pump box 40 and the inner wall of the top end of the air pump box 40 makes it difficult for the upper buffer member 50 to collide with the inner wall of the air pump box 40, so that the transmission of vibration can be further reduced, which is beneficial to further reducing the vibration level of the nitrogen generation device of the refrigerator. In addition, the top end of the air pump 30 is embedded in the second accommodation cavity 501 of the upper buffer member 50, and the top end of the air pump 30 is in soft contact with the upper buffer member 50, so that the connection between the air pump 30 and the air pump box 40 can be realized without relying on an external connection structure, which is beneficial to further reducing the transmission of vibration, and thus is beneficial to further reducing vibration. In addition, the top end of the air pump 30 is embedded in the second accommodation cavity 501, which is beneficial to reducing the height in the height direction after the air pump 30 and the upper buffer member 50 are matched, so that the space occupied in the air pump box 40 can be reduced, and thus the space requirement for the air pump box 40 can be reduced, and further the space occupied by the whole nitrogen generation device of the refrigerator can be reduced.

[0097] As Figures 1 to 9 shown, an installation groove 101 is formed at the position on the bottom plate 10 for installing the top end of the air pump box 40, the top end of the air pump box 40 is located in the installation groove 101, and an intermediate buffer member 102 made of an elastic material is arranged between the top end of the air pump box 40 and the wall surface of the installation groove 101, and the air pump box 40 and the bottom plate 10 are connected by a fastener in a threaded manner.

[0098] Among them, the setting of the intermediate buffer member 102 can play a role in damping vibration, which is beneficial to reducing the vibration transmission between the air pump box 40 and the bottom plate 10, and is beneficial to further reducing the vibration level of the nitrogen generation device of the refrigerator. The air pump box 40 and the bottom plate 10 are connected by a fastener in a threaded manner, and the connection is reliable, which is beneficial to improving the overall stiffness of the nitrogen generation device of the refrigerator, and thus is also beneficial to further reducing the vibration level of the nitrogen generation device of the refrigerator. In addition, the air pump box 40 includes a spliced upper cover 401 and a lower cover 402, which is convenient for putting the air pump 30, the upper buffer member 50 and the lower buffer member 60 into the air pump box 40 or taking out the air pump 30, the upper buffer member 50 and the lower buffer member 60 from the air pump box 40. In addition, the upper cover 401 and the lower cover 402 are hermetically connected at the splicing position, and can isolate the air pump box 40 from the external environment, which is beneficial to ensuring the normal use of the nitrogen generation device of the refrigerator.

[0099] In addition, stepped portions 405 are formed on opposite sides of the top end of the air pump box 40, and two engaging portions 103 are formed on the bottom plate 10 and arranged oppositely. The engaging portions 103 extend outward from the side of the bottom plate 10 facing the air pump box 40 and are bent at the ends to form bent portions 1031. The bent portions 1031 of the two engaging portions 103 face each other. The two engaging portions 103 are used to enclose the installation groove 101. The two engaging portions 103 are respectively engaged with the two stepped portions 405, and intermediate buffer members 102 are arranged between the wall surfaces of the engaging portions 103 and the corresponding stepped portions 405. The intermediate buffer members 102 are sleeved on the stepped portions 405.

[0100] Among them, the cooperation between the engaging portion 103 and the stepped portion 405 can relatively reliably limit the top end of the air pump box 40 at the position corresponding to the installation groove 101 of the bottom plate 10. In addition, the arrangement of the intermediate buffer member 102 can reduce the vibration transmission between the air pump box 40 and the bottom plate 10, which is beneficial to further reducing the vibration level of the nitrogen generation device in the refrigerator.

[0101] It should be noted that the specific structural forms of the engaging portion 103 and the stepped portion 405 are not limited herein, as long as the engagement and limitation of the air pump box 40 and the bottom plate 10 can be achieved.

[0102] Such as Figures 3 to 6 、 Figures 9 to 12 As shown, a side buffer assembly 104 is further arranged on the side of the bottom plate 10 facing the air pump box 40. The side buffer assembly 104 is located between the two engaging portions 103 and is used to enclose the installation groove 101 together with the two engaging portions 103. The side buffer assembly 104 includes a connecting portion 1041 and side buffer members 1042 arranged on the connecting portion 1041. A matching portion 406 is provided on the side wall of the air pump box 40 corresponding to the side buffer members 1042. The side buffer members 1042 are sleeved on the matching portion 406. Through holes 70 are provided in the connecting portion 1041, the side buffer members 1042, and the matching portion 406 for a connecting pipe 90 connected to the air pump 30 to pass through. Optionally or alternatively, mounting holes 80 are provided in the connecting portion 1041, the side buffer members 1042, and the matching portion 406, and the bottom plate 10 and the air pump box 40 are threadedly connected through the mounting holes 80.

[0103] Among them, on the one hand, the side buffer assembly 104 provides a carrier for the passage of the connecting pipe 90 of the air pump 30 and the setting of the connecting structure for realizing the connection between the bottom plate 10 and the air pump box 40; on the other hand, the side buffer assembly 104 is beneficial to further reducing the vibration transmission between the air pump box 40 and the bottom plate 10, and thus is beneficial to further reducing the vibration level of the nitrogen generation device in the refrigerator.

[0104] It should be noted that the specific number of the mounting holes 80 is not limited herein and can be set according to actual needs.

[0105] As Figure 1 shown, the nitrogen generation device of the refrigerator further includes a nitrogen generator 100 installed on the bottom plate 10. As for the structure of the nitrogen generator 100 and the nitrogen generation principle of the nitrogen generation device of the refrigerator, they are known to those skilled in the art. The core of the present invention lies in the cooperation between the air pump 30 and the air pump box 40, and the cooperation between the air pump box 40 and the bottom plate 10. As for the above-known structure of the nitrogen generator 100 and the nitrogen generation principle of the nitrogen generation device of the refrigerator, they will not be elaborated here.

[0106] This embodiment also provides a refrigerator, which includes the above-mentioned nitrogen generation device of the refrigerator. As described above, the nitrogen generation device of the refrigerator includes an upper buffer member 50 and a lower buffer member 60 disposed in the air pump box 40. Among them, the upper buffer member 50 is disposed at the top of the air pump 30, and the lower buffer member 60 is disposed at the bottom of the air pump 30, so that the air pump 30 and the air pump box 40 do not directly contact, thereby being able to greatly reduce the transmission of vibration, and further being able to reduce the overall vibration level of the nitrogen generation device of the refrigerator. Correspondingly, it is also beneficial to reduce the vibration of the refrigerator including the above-mentioned nitrogen generation device of the refrigerator, which is beneficial to optimizing the use experience of the refrigerator.

[0107] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that this is only an example. The protection scope of the present invention is defined by the appended claims. Without departing from the principle and essence of the present invention, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A nitrogen generator for a refrigerator, comprising an air pump assembly and a bottom plate, wherein the air pump assembly comprises an air pump and an air pump box for accommodating the air pump, characterized in that: The air pump box has a top end and a bottom end along the height direction, and the top end of the air pump box is connected to the bottom plate; Along the height direction, the air pump has a top end and a bottom end, the top end of the air pump and the inner wall of the top end of the air pump box form an upper accommodating area, and the bottom end of the air pump and the inner wall of the bottom end of the air pump box form a lower accommodating area; The air pump assembly further comprises a lower buffer, the lower buffer is located in the lower accommodating area, and the air pump is arranged on the lower buffer; Wherein, the lower buffer is made of elastic material.

2. The refrigerator nitrogen generator according to claim 1, characterized in that: The lower buffer member has a first accommodating cavity on one side facing the air pump. The shape of the first accommodating cavity is matched with the shape of the bottom end of the air pump. The bottom end of the air pump is embedded in the first accommodating cavity.

3. The refrigerator nitrogen generator according to claim 2, characterized in that: A side of the inner wall of the lower buffer member facing the bottom end of the air pump box has a plurality of support columns arranged at intervals, and one end of the plurality of support columns facing away from the lower buffer member abuts against the inner wall of the bottom end of the air pump box.

4. The refrigerator nitrogen generator according to claim 3, characterized in that: A plurality of recessed portions are provided on the inner wall of the bottom end of the air pump box; One end of each of the plurality of support columns which is away from the lower buffer member is inserted into each of the plurality of recessed portions in a one-to-one correspondence.

5. The refrigerator nitrogen generator according to claim 1, characterized in that: The air pump assembly further includes an upper buffer member, which is located in the upper accommodating area and mounted on the top of the air pump; Wherein, the upper buffer component is made of elastic material.

6. The refrigerator nitrogen generator according to claim 5, characterized in that: A gap is formed between the upper buffer member facing the top end of the air pump box and the inner wall of the top end of the air pump box; And / or, the upper buffer member has a second accommodating cavity on a side facing the air pump, the shape of the second accommodating cavity is adapted to the shape of the top end of the air pump, and the top end of the air pump is embedded in the second accommodating cavity.

7. The refrigerator nitrogen generator according to any one of claims 1 to 6, characterized in that: A mounting groove is formed on the bottom plate at a position for mounting the top of the air pump box, the top of the air pump box is located in the mounting groove, an intermediate buffer made of elastic material is arranged between the air pump box and the wall of the mounting groove, and the air pump box is threadedly connected to the bottom plate by a fastener; And / or, the air pump box includes an upper cover and a lower cover along the height direction, the upper cover and the lower cover are spliced ​​together, and a sealing member is provided at the splicing position of the upper cover and the lower cover.

8. The refrigerator nitrogen generator according to claim 7, characterized in that: Step portions are formed on opposite sides of the top of the air pump box, and two oppositely arranged clamping portions are formed on the bottom plate. The clamping portions extend outward from the bottom plate toward one side of the air pump box and have a bending portion formed at the end. The bending portions of the two clamping portions are arranged opposite to each other, and the two clamping portions are used to enclose the mounting groove. The two clamping portions are clamped on the two step portions one by one, and the intermediate buffer member is provided between the wall surface of the clamping portion and the corresponding step portion, and the intermediate buffer member is sleeved on the step portion.

9. The refrigerator nitrogen generator according to claim 8, characterized in that: A side buffer assembly is also provided on one side of the bottom plate facing the air pump box, and the side buffer assembly is located between the two clamping parts and is used to enclose the installation groove together with the two clamping parts; The side buffer assembly includes a connecting portion and a side buffer member arranged on the connecting portion, the side wall of the air pump box corresponding to the side buffer member has a matching portion, and the side buffer member is sleeved on the matching portion; The connecting portion, the side buffer and the matching portion are all provided with through holes, and the through holes are for the connecting pipe connected to the air pump to pass through, and / or the connecting portion, the side buffer and the matching portion are all provided with mounting holes, and the base plate and the air pump box are threadedly connected through the mounting holes.

10. A refrigerator, characterized in that: It comprises a refrigerator nitrogen making device as described in any one of claims 1-9.

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