Fan mask mounting structure applied to freezer

Abstract

The utility model relates to the technical field of freezer manufacturing, in particular to a fan mask mounting structure applied to a freezer, which comprises a fan panel, a fan mask is arranged on the fan panel, a mounting mechanism is arranged between the fan panel and the fan mask, and the fan panel is detachably connected with the fan mask through the mounting mechanism. According to the utility model, the mounting mechanism is arranged between the fan mask and the fan panel, so that the fan panel is detachably connected with the fan mask through the mounting mechanism, and a user can detach the fan mask from the fan panel through simple operation without complicated tools or steps, thereby greatly simplifying the cleaning and maintenance process and improving the cleaning efficiency. According to the freezer, the working efficiency is improved, and the problems that when a user needs to clean or maintain the fan mask, the operation is inconvenient and the working efficiency is influenced due to the fact that the fan mask is arranged on the fan panel of an existing freezer and the fan mask and the fan panel are integrally formed are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of freezer manufacturing, and specifically to an installation structure of a fan mask applied to a freezer. Background Art

[0002] As an important common household appliance, freezers are widely used in commercial environments and households to provide long-term food storage and freezing functions. In business, freezers are mainly used to store and preserve food and beverages, ensuring that goods remain fresh and safe during the sales process. By using freezers to store frozen foods, meats, seafood, ice cream, etc., people can effectively extend the shelf life of food, reduce waste, and improve operational efficiency. In addition, the efficient cooling technology and intelligent temperature control system of freezers can also help commercial users reduce energy consumption and improve operational economy. In households, freezers are used to store daily foods such as ice cream, frozen fruits, and meats for people to access when needed. Therefore, freezers play an irreplaceable role in maintaining food quality and providing convenient storage.

[0003] Currently, in order to prevent users from accidentally touching the fan when using common freezers on the market and to reduce the entry of dust, debris, and other sundries into the fan, a fan mask is provided on the fan panel. Since the fan mask and the fan panel are integrally formed, it is inconvenient for users to clean or maintain the fan mask, which affects work efficiency.

[0004] The present utility model is studied and proposed in view of the deficiencies of the prior art. Summary of the Utility Model

[0005] Regarding the problem that in the existing freezers mentioned above, a fan mask is provided on the fan panel, and since the fan mask and the fan panel are integrally formed, it is inconvenient for users to clean or maintain the fan mask, which affects work efficiency, the technical solution adopted by the present utility model to solve its technical problems is:

[0006] An installation structure of a fan mask applied to a freezer, including a fan panel, a fan mask is provided on the fan panel, an installation mechanism is provided between the fan panel and the fan mask, and the fan panel is detachably connected to the fan mask through the installation mechanism.

[0007] Further, the fan mask includes an outer mask ring, and the installation mechanism includes a first installation mechanism located between the outer mask ring and the fan panel, and the outer mask ring is detachably connected to the fan panel through the first installation mechanism.

[0008] Further, the first installation mechanism includes a rotating buckle located on the outer mask ring and a slot located on the fan panel and snap-fitted with the rotating buckle.

[0009] Furthermore, the fan mask includes an inner ring of the mask, and the mounting mechanism includes a second mounting mechanism located between the outer ring of the mask and the inner ring of the mask. The outer ring of the mask is detachably connected to the inner ring of the mask through the second mounting mechanism.

[0010] Furthermore, the second mounting mechanism includes a spring snap located on the inner ring of the mask and a ridge ring located on the outer ring of the mask and snap-fitted with the spring snap.

[0011] Furthermore, the ridge ring is located on one side close to the inner wall of the outer ring of the mask, and the rotary snap is located on the ridge ring and arranged at intervals.

[0012] Furthermore, reinforcing ribs are provided between the ridge ring and the inner wall of the outer ring of the mask, and the reinforcing ribs are arranged at intervals along the circumferential direction of the outer ring of the mask.

[0013] Furthermore, a limiting concave surface is provided on one side of the ridge ring away from the inner wall of the outer ring of the mask, and a limiting opening corresponding to the spring snap is provided on the limiting concave surface. The spring snap is snap-connected to the ridge ring through the limiting opening.

[0014] Furthermore, a positioning mechanism for limiting the installation position of the outer ring of the mask is provided between the outer ring of the mask and the fan panel.

[0015] Furthermore, the positioning mechanism includes a positioning pin located on the outer ring of the mask and a positioning hole located on the fan panel and inserted and matched with the positioning pin.

[0016] The beneficial effects of the present utility model are as follows:

[0017] By providing a mounting mechanism between the fan mask and the fan panel, the present utility model enables the fan panel to be detachably connected to the fan mask through the mounting mechanism. Users can detach the fan mask from the fan panel through simple operations without the need for complex tools or steps, thus greatly simplifying the cleaning and maintenance processes, being beneficial to improving work efficiency, and effectively solving the problem that when a fan mask is provided on the fan panel of an existing freezer, due to the integral molding of the fan mask and the fan panel, it is inconvenient for users to clean or maintain the fan mask, affecting work efficiency.

[0018] The following will further illustrate the present utility model in conjunction with the drawings and specific embodiments. Description of the Drawings

[0019] Figure 1 is one of the exploded views of the fan panel and the fan mask of the present utility model;

[0020] Figure 2This is the second exploded view of the fan panel and the fan mask of the present utility model;

[0021] Figure 3 This is the first structural schematic diagram of the fan panel and the fan mask of the present utility model;

[0022] Figure 4 is Figure 3 The sectional view along the C-C line;

[0023] Figure 5 This is the second structural schematic diagram of the fan panel and the fan mask of the present utility model;

[0024] Figure 6 This is the structural schematic diagram of the inner ring of the mask of the present utility model;

[0025] Figure 7 This is the structural schematic diagram of the fan panel of the present utility model;

[0026] Figure 8 This is the structural schematic diagram of the outer ring of the mask of the present utility model. Detailed implementation manners

[0027] The following will make a detailed description of the implementation manners of the present utility model in conjunction with the drawings.

[0028] As Figures 1 to 8 shown, a fan mask installation structure applied to a freezer includes a fan panel 1, a fan mask 2 is provided on the fan panel 1, an installation mechanism 3 is provided between the fan panel 1 and the fan mask 2, and the fan panel 1 is detachably connected to the fan mask 2 through the installation mechanism 3;

[0029] By providing an installation mechanism between the fan mask and the fan panel in the present utility model, the fan panel is detachably connected to the fan mask through the installation mechanism, and the user can detach the fan mask from the fan panel through simple operations without complex tools or steps, thus greatly simplifying the cleaning and maintenance processes, being beneficial to improving work efficiency, and effectively solving the problem that in the existing freezer, when a fan mask is provided on the fan panel, due to the integral molding of the fan mask and the fan panel, it is inconvenient for the user to clean or maintain the fan mask, affecting work efficiency.

[0030] Optionally, in some embodiments, the installation mechanism 3 includes a threaded hole on the fan panel 1 and a threaded hole on the fan mask 2, and the threaded hole on the fan panel 1 and the screw hole on the fan mask 2 are connected by a screw member to make the fan panel 1 and the fan mask 2 detachably connected.

[0031] Optionally, in some embodiments, the installation mechanism 3 includes a slide rail located on the blower panel 1, a chute located on the blower mask 2 and slidably connected to the slide rail, and a lock located between the blower panel 1 and the blower mask 2. When the user needs to install, the slide rail and the chute are used for sliding cooperation to enable the blower mask 2 and the blower panel 1 to be slidably connected, and finally the blower panel 1 and the blower mask 2 are fixedly connected through the lock. When the user needs to disassemble, simply open the lock and pull the blower mask 2 along the slide rail direction from the blower panel 1.

[0032] Optionally, in some embodiments, the installation mechanism 3 includes a first magnetic attraction part located on the blower panel 1 and a second magnetic attraction part located on the blower mask 2. The first magnetic attraction part and the second magnetic attraction part are magnetically attracted to each other to enable the blower panel 1 and the blower mask 2 to be detachably connected.

[0033] Further, as a preferred but not limiting manner of the present utility model, the installation mechanism 3 includes a rotary buckle 311 located on the blower mask 2 and a card slot 312 located on the blower panel 1. The rotary buckle 311 and the card slot 312 are buckled to each other to enable the blower panel 1 and the blower mask 2 to be detachably connected.

[0034] Further, the snap connection between the blower panel 1 and the blower mask 2 is beneficial to improving the overall aesthetics of the freezer compared to the threaded connection, and the snap connection avoids the exposure of screw parts. Secondly, the user can assemble the blower panel 1 and the blower mask 2 through simple snap operations, which is beneficial to improving the assembly efficiency during the production process of the freezer.

[0035] As Figures 1 to 8 shown, the blower mask 2 includes a mask outer ring 21, and the installation mechanism 3 includes a first installation mechanism 31 located between the mask outer ring 21 and the blower panel 1. The mask outer ring 21 is detachably connected to the blower panel 1 through the first installation mechanism 31.

[0036] Further, the setting of the first installation mechanism 31 enables the mask outer ring 21 to be accurately aligned and fixed at a predetermined position on the blower panel 1, which not only ensures the neat appearance of the blower mask 2 but also ensures the connection stability between the mask outer ring 21 and the blower panel 1. The stable connection provided by the first installation mechanism 31 can resist vibrations and impacts during daily use, which is beneficial to extending the service life of the blower mask 2 and the blower panel 1.

[0037] Further, the user can easily install or disassemble the mask outer ring 21 on the blower panel 1 through the first installation mechanism 31, which is beneficial to improving the convenience of cleaning or maintenance.

[0038] Optionally, in some embodiments, the first mounting mechanism 31 includes a threaded hole located on the fan panel 1 and a threaded hole located on the mask outer ring 21, and the threaded hole on the fan panel 1 and the screw hole on the mask outer ring 21 are connected by screws so that the fan panel 1 and the mask outer ring 21 are detachably connected.

[0039] Optionally, in some embodiments, the first mounting mechanism 31 includes a slide rail located on the fan panel 1 , a slide groove located on the mask outer ring 21 and slidably connected to the slide rail, and a lock located between the fan panel 1 and the mask outer ring 21 .

[0040] Furthermore, as a preferred embodiment of the utility model but not a limitation, the first mounting mechanism 31 includes a rotating buckle 311 located on the mask outer ring 21 and a slot 312 located on the fan panel 1. The rotating buckle 311 and the slot 312 are snap-fitted to make the fan panel 1 and the mask outer ring 21 detachably connected.

[0041] Optionally, the mask outer ring 21 is made of plastic or composite material.

[0042] like Figures 1 to 8 The first mounting mechanism 31 shown includes a rotating buckle 311 located on the outer ring 21 of the mask, and a slot 312 located on the fan panel 1 and snap-fitted with the rotating buckle 311;

[0043] Furthermore, after being rotated into place, the rotating buckle 311 can form a stable buckle connection with the slot 312, which helps to ensure that the mask outer ring 21 will not loosen or fall off under normal working conditions, and effectively ensure the safety and stability of the connection between the mask outer ring 21 and the fan panel 1.

[0044] Furthermore, the rotating buckle 311 includes a first buckle portion 3111 and a second buckle portion 3112 connected to the first buckle portion 3111. The first buckle portion 3111 and the second buckle portion 3112 are connected at an angle to form a chamfer. The cross-section of the rotating buckle 311 is in a "C" shape. The "C"-shaped cross-section is configured so that the rotating buckle 311 can be tightly embedded in the slot 312 after being rotated into place, which is conducive to forming a stable locking effect and reducing safety hazards caused by loosening or falling off; secondly, the first buckle portion 3111 and the second buckle portion 3112 are connected at an angle to form a chamfer, which not only increases the contact area between the rotating buckle 311 and the slot 312, but also enables the rotating buckle 311 to disperse the pressure more evenly when subjected to force, thereby improving the stability and durability of the connection between the rotating buckle 311 and the slot 312.

[0045] like Figures 1 to 8The described fan mask 2 shown includes an inner mask ring 22, and the mounting mechanism 3 includes a second mounting mechanism 32 located between the outer mask ring 21 and the inner mask ring 22. The outer mask ring 21 is detachably connected to the inner mask ring 22 through the second mounting mechanism 32;

[0046] Further, the outer mask ring 21 and the inner mask ring 22 are detachably connected through the second mounting mechanism 32, so that the outer mask ring 21 and the inner mask ring 22 can be independently replaced or repaired. When one of the components is damaged, there is no need to replace the entire fan mask 2, which is beneficial to reducing the maintenance cost and the replacement difficulty.

[0047] Further, the outer mask ring 21 and the inner mask ring 22 are detachably connected through the second mounting mechanism 32, so that the user can more easily clean each part of the fan mask 2, including hard-to-reach corners and gaps.

[0048] Optionally, in some embodiments, the second mounting mechanism 32 includes a threaded hole on the outer mask ring 21 and a threaded hole on the inner mask ring 22. The threaded hole on the outer mask ring 21 and the threaded hole on the inner mask ring 22 are connected by a screw member, so that the inner mask ring 22 and the outer mask ring 21 are detachably connected.

[0049] Optionally, in some embodiments, the second mounting mechanism 32 includes a slide rail on the outer mask ring 21, a chute on the inner mask ring 22 that is slidably connected to the slide rail, and a locking buckle located between the inner mask ring 22 and the outer mask ring 21.

[0050] Further, as a preferred mode rather than a limitation of the present utility model, the second mounting mechanism 32 includes a ridge ring 322 on the outer mask ring 21 and a spring buckle 321 on the inner mask ring 22 that is snap-fitted with the ridge ring 322.

[0051] As Figures 1 to 8 The described second mounting mechanism 32 shown includes a spring buckle 321 on the inner mask ring 22 and a ridge ring 322 on the outer mask ring 21 that is snap-fitted with the spring buckle 321;

[0052] Further, the snap-fitting of the spring buckle 321 and the ridge ring 322 is beneficial to providing a tight fixing force, and can firmly fix the inner mask ring 22 and the outer mask ring 21 together. The elastic action of the spring buckle 321 is beneficial to ensuring that even under vibration or external force, the outer mask ring 21 and the inner mask ring 22 will not loosen easily, which is beneficial to improving the overall stability.

[0053] Furthermore, the spring buckle 321 and the ridge ring 322 are buckled together to make the installation and disassembly between the inner ring 22 and the outer ring 21 of the face mask more convenient. The user only needs to simply press down the spring buckle 321 to complete the fixing or unlocking operation without using tools, which is beneficial to improving the operation convenience.

[0054] As Figures 1 to 8 shown, the ridge ring 322 is located on one side close to the inner wall of the outer ring 21 of the face mask, and the rotary buckles 311 are located on the ridge ring 322 and are spaced apart.

[0055] Furthermore, the rotary buckles 311 are arranged on the ridge ring 322 and are spaced apart so that the acting force of the rotary buckles 311 is more evenly distributed in the fixing area of the fan face mask 2, which is beneficial to improving the overall stability of the connection between the fan face mask 2 and the fan panel 1 and preventing loosening or displacement caused by concentrated fixing points during use.

[0056] Specifically, the number of the rotary buckles 311 is three.

[0057] Furthermore, both the ridge ring 322 and the rotary buckles 311 on the ridge ring 322 are located on one side close to the inner wall of the outer ring 21 of the face mask, so that the appearance of the outer ring 21 of the face mask is more tidy and beautiful.

[0058] As Figures 1 to 8 shown, a reinforcing rib 4 is provided between the ridge ring 322 and the inner wall of the outer ring 21 of the face mask, and the reinforcing ribs 4 are arranged at intervals along the circumferential direction of the outer ring 21 of the face mask.

[0059] Furthermore, as an additional support structure, the reinforcing rib 4 can significantly enhance the stiffness and strength of the outer ring 21 of the face mask, which is beneficial to reducing deformation or damage caused by external forces. When subjected to external forces, the reinforcing rib 4 can disperse stress and effectively avoid stress concentration, thereby prolonging the service life of the outer ring 21 of the face mask.

[0060] Furthermore, the arrangement of the reinforcing rib 4 is beneficial to providing structural stability and helps to ensure the stability of the connection part between the outer ring 21 of the face mask and the ridge ring 322.

[0061] As Figures 1 to 8 shown, a limiting concave surface 5 is provided on one side of the ridge ring 322 away from the inner wall of the outer ring 21 of the face mask, and a limiting opening 51 corresponding to the spring buckle 321 is provided on the limiting concave surface 5. The spring buckle 321 is buckled to the ridge ring 322 through the limiting opening 51.

[0062] Furthermore, the provision of the limiting concave surface 5 and the limiting opening 51 helps the user to automatically align the connection between the spring buckle 321 and the ridge ring 322 during installation, which is conducive to reducing the need for manual adjustment by the user and effectively improving the installation accuracy.

[0063] Furthermore, the provision of the limiting opening 51 is conducive to providing clear positioning guidance, enabling the spring buckle 321 to quickly and accurately enter the correct position during installation, which is conducive to simplifying the installation and disassembly processes, thereby enabling the user to complete the operation more easily and helping to improve efficiency.

[0064] Furthermore, the limiting concave surface 5 is in contact connection with the outer wall of the inner mask ring 22. The provision of the limiting concave surface 5 is conducive to providing a space for accommodating the inner mask ring 22 when the inner mask ring 22 and the outer mask ring 21 are connected.

[0065] As Figures 1 to 8 shown, a positioning mechanism 6 for restricting the installation position of the outer mask ring 21 is provided between the outer mask ring 21 and the fan panel 1;

[0066] Furthermore, the provision of the positioning mechanism 6 can ensure that the outer mask ring 21 can be accurately aligned with a predetermined position on the fan panel 1 during installation, which is conducive to avoiding performance degradation or safety hazards caused by inaccurate installation positions. Under the guidance of the positioning mechanism 6, installers can more easily achieve precise installation, effectively reducing installation errors caused by human factors.

[0067] Furthermore, the positioning mechanism 6 not only restricts the installation position of the outer mask ring 21, but also can enhance the connection stability between the outer mask ring 21 and the fan panel 1 to a certain extent, which is conducive to reducing the risk of loosening or falling off caused by vibration or external forces.

[0068] Optionally, in some embodiments, the positioning mechanism 6 includes a positioning boss located on the outer mask ring 21 and a positioning groove located on the fan panel 1. The positioning boss is a small cylindrical protrusion, and the positioning groove is a cylindrical groove. The positioning boss and the positioning groove are inserted and matched to fix the installation position of the outer mask ring 21 on the fan panel 1.

[0069] Furthermore, as a preferred but non-limiting manner of the present invention, the positioning mechanism 6 includes a positioning pin 61 located on the outer mask ring 21 and a positioning hole 62 located on the fan panel 1 and inserted and matched with the positioning pin 61 to fix the installation position of the outer mask ring 21 on the fan panel 1.

[0070] As Figures 1 to 8 shown, the positioning mechanism 6 includes a positioning pin 61 located on the outer mask ring 21 and a positioning hole 62 located on the fan panel 1 and inserted and matched with the positioning pin 61;

[0071] Furthermore, the positioning pin 61 is inserted into and cooperates with the positioning hole 62, which helps ensure that the outer ring 21 of the face mask can be accurately aligned with the predetermined position on the fan panel 1 during installation, effectively avoiding the problem of inaccurate installation positions. Through precise insertion and cooperation, it helps reduce installation errors caused by human operation or other factors and contributes to improving the overall accuracy of the equipment.

[0072] Furthermore, after the positioning pin 61 is inserted into the positioning hole 62, it can firmly fix the outer ring 21 of the face mask, preventing the outer ring 21 of the face mask from moving or loosening due to vibration or external forces during use, which is beneficial to improving the stability and fixity of the connection between the fan panel 1 and the outer ring 21 of the face mask.

[0073] Specifically, both the positioning pin 61 and the rotating buckle 311 are provided on the ridge ring 322, which can minimize the use of additional components, help save space, and make the overall structure more compact. Secondly, the positioning pin 61 and the rotating buckle 311 work together to provide a dual fixing mechanism. The positioning pin 61 is responsible for precise alignment, while the rotating buckle 311 provides additional locking force, which is beneficial to enhancing the stability of the component and preventing the outer ring 21 of the face mask from loosening or falling off during use.

[0074] Installation process of the fan panel and the fan face mask:

[0075] First, through the snap - fit of the spring buckle 321 and the ridge ring 322, the inner ring 22 and the outer ring 21 of the face mask are detachably connected. Secondly, when installing the outer ring 21 of the face mask onto the fan panel 1, the user needs to apply a slight force to cause a certain slight deformation of the outer ring 21 of the face mask. At this time, the rotating buckle 311 and the card slot 312 are snap - fit to install the outer ring 21 of the face mask onto the fan panel 1. Finally, rotate the outer ring 21 of the face mask to make the positioning pin 61 and the positioning hole 62 inserted and cooperate, and the outer ring 21 of the face mask is fixed to the fan panel 1 to complete the installation.

[0076] The implementation mode of this embodiment is as follows:

[0077] A fan mask installation structure applied to a freezer, comprising a fan panel 1, a fan mask 2 is provided on the fan panel 1, an installation mechanism 3 is provided between the fan panel 1 and the fan mask 2, the fan mask 2 includes a mask outer ring 21 and a mask inner ring 22 detachably connected to the mask outer ring 21, the installation mechanism 3 includes a first installation mechanism 31 located between the mask outer ring 21 and the fan panel 1 and a second installation mechanism 32 located between the mask outer ring 21 and the mask inner ring 22. The first installation mechanism 31 includes a rotary buckle 311 located on the mask outer ring 21 and a card slot 312 located on the fan panel 1 and buckling with the rotary buckle 311. The second installation mechanism 32 includes a spring buckle 321 located on the mask inner ring 22 and a ridge ring 322 located on the mask outer ring 21 and buckling with the spring buckle 321. When a user needs to install the fan mask 2 on the fan panel 1, through the buckling cooperation of the spring buckle 321 and the ridge ring 322, the mask inner ring 22 and the mask outer ring 21 are detachably connected. When the mask outer ring 21 is installed on the fan panel 1, the user needs to apply a little force to make the mask outer ring 21 have a certain slight deformation. At this time, the rotary buckle 311 and the card slot 312 are buckled together to install the mask outer ring 21 on the fan panel 1, effectively solving the problem that in the existing freezer, when a fan mask is provided on the fan panel, since the fan mask and the fan panel are integrally formed, it is inconvenient for the user to clean or maintain the fan mask, affecting the work efficiency.

[0078] The above only further illustrates the technical content of the present invention with examples to make it easier for readers to understand, but it does not mean that the implementation mode of the present invention is limited to this. Any technical extension or re-creation made according to the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. A fan mask mounting structure for a freezer, comprising a fan panel (1), characterized in that: A fan mask (2) is provided on the fan panel (1), a mounting mechanism (3) is provided between the fan panel (1) and the fan mask (2), and the fan panel (1) is detachably connected to the fan mask (2) via the mounting mechanism (3).

2. The fan mask installation structure used in a freezer according to claim 1, characterized in that: The fan mask (2) comprises a mask outer ring (21), and the mounting mechanism (3) comprises a first mounting mechanism (31) located between the mask outer ring (21) and the fan panel (1), and the mask outer ring (21) is detachably connected to the fan panel (1) via the first mounting mechanism (31).

3. The fan mask installation structure used in a freezer according to claim 2 is characterized in that: The first mounting mechanism (31) comprises a rotating buckle (311) located on the outer ring (21) of the mask, and a slot (312) located on the fan panel (1) and snap-fitted with the rotating buckle (311).

4. The fan mask installation structure used in a freezer according to claim 3 is characterized in that: The fan mask (2) comprises a mask inner ring (22), the mounting mechanism (3) comprises a second mounting mechanism (32) located between the mask outer ring (21) and the mask inner ring (22), and the mask outer ring (21) is detachably connected to the mask inner ring (22) via the second mounting mechanism (32).

5. The fan mask installation structure used in a freezer according to claim 4 is characterized in that: The second mounting mechanism (32) comprises a spring buckle (321) located on the inner ring (22) of the mask, and a ridge ring (322) located on the outer ring (21) of the mask and buckled with the spring buckle (321).

6. The fan mask installation structure used in a freezer according to claim 5, characterized in that: The ridge ring (322) is located close to a side of the inner wall of the mask outer ring (21), and the rotating buckles (311) are located on the ridge ring (322) and are arranged at intervals.

7. The fan mask installation structure used in a freezer according to claim 5, characterized in that: Reinforcing ribs (4) are provided between the ridge ring (322) and the inner wall of the mask outer ring (21), and the reinforcing ribs (4) are arranged at intervals along the circumferential direction of the mask outer ring (21).

8. The fan mask installation structure used in a refrigerator according to claim 5, characterized in that: A limiting concave surface (5) is provided on one side of the ridge ring (322) away from the inner wall of the mask outer ring (21); a limiting opening (51) corresponding to the spring buckle (321) is provided on the limiting concave surface (5); and the spring buckle (321) is buckled and connected to the ridge ring (322) via the limiting opening (51).

9. The fan mask installation structure used in a refrigerator according to claim 2, characterized in that: A positioning mechanism (6) for limiting the installation position of the mask outer ring (21) is provided between the mask outer ring (21) and the fan panel (1).

10. The fan mask installation structure used in a refrigerator according to claim 9, characterized in that: The positioning mechanism (6) comprises a positioning pin (61) located on the outer ring (21) of the mask, and a positioning hole (62) located on the fan panel (1) and plugged into and mated with the positioning pin (61).

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