Mounting assembly and refrigerator

Abstract

The utility model provides an installation assembly and a refrigerator, and the installation assembly comprises a cover plate used for being installed in an inner container of the refrigerator, and the cover plate is provided with an installation opening; the knob is rotationally connected to the cover plate and used for driving a potentiometer of the refrigerator to rotate, and the knob is connected to the end of the mounting opening in a buckled mode; wherein the cover plate is provided with a receding opening, the receding opening is communicated with the mounting opening in the radial direction of the mounting opening, a limiting protrusion is arranged on the side, facing the cover plate, of the rotary knob, at least part of the limiting protrusion is rotationally connected to the mounting opening, and the receding opening is used for allowing at least part of the limiting protrusion to penetrate to the side, deviating from the rotary knob, of the cover plate in the axial direction of the mounting opening. The limiting protrusion is arranged on the knob connected to the cover plate in a buckled mode, and the knob can be prevented from being disengaged upwards in the axial direction of the knob through the limiting protrusion and the knob in a buckled connection mode.

Description

Technical Field

[0001] This application relates to the field of home appliance technology, and in particular to an installation component and a refrigerator. Background Technology

[0002] Users rotate a knob inside the refrigerator to rotate the brush of a potentiometer on the refrigerator, thus changing the potentiometer's resistance and output voltage. However, the knob on the refrigerator is usually fixed with an interference fit. Over time, this can cause the clearance to increase, making the knob prone to axial loosening. Utility Model Content

[0003] This invention provides an installation component and a refrigerator to solve the technical problem of poor reliability in knob installation.

[0004] To achieve the above objectives, this application proposes an installation component comprising:

[0005] A cover plate for installation on the inner liner of a refrigerator, the cover plate having an installation opening; and,

[0006] A knob, which is connected to the cover plate and is used to drive the potentiometer of the refrigerator to rotate;

[0007] The cover plate is provided with a clearance opening, which is connected to the mounting opening radially. The knob is provided with a limiting protrusion on the side facing the cover plate. At least a portion of the limiting protrusion is rotatably connected to the mounting opening. The clearance opening is used to allow at least a portion of the limiting protrusion to pass through the mounting opening axially to the side of the cover plate opposite to the knob.

[0008] Optionally, in one embodiment, the limiting protrusion includes an extension and a limiting portion. The extension is located radially on the rotation axis of the knob. One end of the extension is connected to the side of the knob facing the cover plate, and the limiting portion is connected to the other end of the extension. The extension is rotatably connected to the mounting opening, and the clearance opening is used to avoid the limiting portion.

[0009] Optionally, in one embodiment, the mounting opening extends through the cover plate circumferentially along the axis of rotation of the knob; multiple limiting protrusions are spaced apart circumferentially along the axis of rotation of the knob; the multiple limiting portions are located on the side of the extension facing the axis of rotation of the knob, and / or on the side of the extension away from the axis of rotation of the knob.

[0010] Optionally, in one embodiment, a rotating post is provided on the side of the knob facing the cover plate, the mounting port is used for the rotating post to pass through and connect to the potentiometer, and the clearance port is located on the side of the mounting port away from the rotating post.

[0011] Optionally, in one embodiment, the knob is provided with a snap-fit ​​portion on the side facing the cover plate, the snap-fit ​​portion is located away from the rotating shaft of the knob, and the snap-fit ​​portion is snapped into the mounting port.

[0012] Optionally, in one embodiment, the limiting protrusion is provided with the snap-fit ​​portion, which is located on the side of the mounting opening facing or away from the clearance opening.

[0013] Optionally, in one embodiment, the limiting protrusion includes an extension and a limiting portion. The extension is located radially on the rotation axis of the knob. One end of the extension is connected to the side of the knob facing the cover plate. Along the direction from the knob to the cover plate, the snap-fit ​​portion and the limiting portion are sequentially disposed at the other end of the extension.

[0014] Optionally, in one embodiment, the end of the mounting port opposite to the knob is provided with a locking protrusion, the locking part is snapped into the locking protrusion, and the clearance port passes through the locking protrusion along the axial direction of the knob's rotation axis.

[0015] Optionally, in one embodiment, the cover plate has a stop portion on the side facing the knob, and the knob has a rotating protrusion on the side facing the cover plate. The rotating protrusion extends circumferentially along the rotation axis of the knob, and both ends of the rotating protrusion are used to abut against the stop portion.

[0016] This application also proposes a refrigerator, including a control board, a potentiometer, and mounting components as described above. The control board is mounted on the side of the cover away from the knob, and the potentiometer is electrically connected to the control board. The knob rotates to drive the potentiometer to rotate.

[0017] The installation component provided in this application has a limiting protrusion on the knob that is snapped onto the cover plate. During the rotation of the knob, when the limiting protrusion is misaligned with the clearance opening, both the limiting protrusion and the snap-fit ​​connection of the knob can prevent the knob from coming off along its own axis. Even if the snap-fit ​​connection between the knob and the cover plate fails, the limiting protrusion can still prevent the knob from falling off the cover plate. When the limiting protrusion is aligned with the clearance opening, the snap-fit ​​connection between the knob and the cover plate can prevent the knob from falling off the cover plate. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 A front view of the mounting components, control board, and potentiometers for this application;

[0020] Figure 2 A schematic diagram of the rear structure of the mounting components, control board, and potentiometers in this application;

[0021] Figure 3 Exploded view of the components, control board, and potentiometers in this application;

[0022] Figure 4 This is a schematic diagram of the rear structure of the knob in the mounting assembly of this application;

[0023] Figure 5 A schematic diagram of the rear structure of the components to be installed in this application;

[0024] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0025] Figure 7 This is a schematic diagram of the front structure of the cover plate in the mounting assembly of this application;

[0026] Figure 8 for Figure 7 Enlarged view of point B in the middle;

[0027] Figure 9 Rear view of the components, control board, and potentiometers installed in this application;

[0028] Figure 10 For along Figure 9 Cross-sectional view obtained from section line II;

[0029] Figure 11 A bottom view showing the components, control board, and potentiometers installed in this application;

[0030] Figure 12 For along Figure 11 Cross-sectional view obtained from section line II-II;

[0031] Figure 13 for Figure 12 Enlarged view of point C in the middle.

[0032] Explanation of icon numbers:

[0033] 1. Cover plate; 11. Mounting port; 12. Clearance port; 13. Locking protrusion; 14. Stop; 2. Knob; 21. Limiting protrusion; 211. Extension; 212. Limiting part; 22. Rotating column; 221. Mating surface; 23. Locking part; 24. Rotating protrusion; 3. Control panel; 4. Potentiometer.

[0034] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Furthermore, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model.

[0036] In the description of this application, it should be understood that the terms "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a unique orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0038] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0039] The use of "applies to" or "configured to" in this application implies open and inclusive language, which does not exclude the applicability to or configuration to devices performing additional tasks or steps. Additionally, the use of "based on" implies openness and inclusivity, because processes, steps, calculations, or other actions "based on" one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0040] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0041] This application provides an installation component to address the problem of poor reliability in knob installation. The following description, in conjunction with the accompanying drawings, will illustrate this.

[0042] In the embodiments of this application, such as Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, this type of installation component includes:

[0043] Cover 1, for installation on the inner liner of the refrigerator, cover 1 having an installation opening 11; and,

[0044] Knob 2 is rotatably connected to cover plate 1 and used to drive the potentiometer 4 of the refrigerator to rotate. Knob 2 is snapped to the end of mounting port 11.

[0045] The cover plate 1 is provided with a clearance opening 12, which is connected to the mounting opening 11 radially upward. The knob 2 is provided with a limiting protrusion 21 on the side facing the cover plate 1. At least a portion of the limiting protrusion 21 is rotatably connected to the mounting opening 11. The clearance opening 12 is used to allow at least a portion of the limiting protrusion 21 to pass through the mounting opening 11 axially to the side of the cover plate 1 away from the knob 2.

[0046] It should be noted that "knob 2 is used to drive the potentiometer 4 of the refrigerator to rotate" means that after knob 2 is connected to the potentiometer 4 of the refrigerator, when knob 2 is rotated, it will drive the brush on the potentiometer 4 to rotate. The brush contacts the resistive element of the potentiometer 4, dividing the resistive element into two parts. These two parts of the resistor are respectively connected to the two fixed terminals of the potentiometer 4. As the brush rotates, the resistance value between these two parts of the resistor and the two fixed terminals changes, thereby changing the voltage output from the fixed terminals. "knob 2 is snapped to the end of the mounting port 11" means that knob 2 has a structure that snaps to the end of the mounting port 11. It can also mean that at least a part of the limiting protrusion 21 that is rotatably connected to the mounting port 11 is provided with a structure that snaps to the end of the mounting port 11. "The axial direction of the mounting port 11" means that the mounting port 11 is a circular hole, and the axis is the central axis of the circular hole; or it is a hole in the shape of a ring, or a hole in the shape of a half or a quarter ring, and the axis is the central axis of the complete ring, or the central axis of a virtual ring obtained by extending from an incomplete ring.

[0047] Understandably, since the clearance opening 12 is located radially on the mounting opening 11, when the limiting protrusion 21 passes through the mounting opening 11 and the clearance opening 12, rotating the knob 2 to a certain angle will at least partially displace the limiting protrusion 21 from the clearance opening 12, preventing the knob 2 from detaching from the cover plate 1 along its rotation axis. Simultaneously, the snap-fit ​​connection between the knob 2 and the end of the mounting opening 11 also restricts the knob 2 from detaching from the cover plate 1 along its rotation axis, providing a dual fixing effect. Even if the snap-fit ​​connection between the knob 2 and the end of the mounting opening 11 fails, the limiting protrusion 21 can still effectively fix the knob 2. In use, if the knob 2 is rotated until the limiting protrusion 21 aligns with the clearance opening 12, the snap-fit ​​connection between the knob 2 and the end of the mounting opening 11 can also prevent the knob 2 from detaching.

[0048] For example, cover 1 may refer to a structure in the refrigerator that encloses the refrigerator liner to form an air duct, or it may refer to other structures that provide an installation position for knob 2.

[0049] In some embodiments, such as Figure 5 and Figure 6 As shown, the limiting protrusion 21 includes an extension 211 and a limiting part 212. The extension 211 is located radially on the rotating shaft of the knob 2. One end of the extension 211 is connected to the side of the knob 2 facing the cover plate 1. The limiting part 212 is connected to the other end of the extension 211. The extension 211 is rotatably connected to the mounting port 11. The clearance port 12 is used to avoid the limiting part 212.

[0050] It should be noted that when installing the knob 2, the limiting protrusion 21 needs to pass through the clearance opening 12 and the limiting protrusion 21 should be located on the side of the cover plate 1 away from the knob 2. When the knob 2 is rotated, the limiting protrusion 21 can be rotated along the opening end of the mounting opening 11. At the same time, the mounting opening 11 allows the extension 211 to rotate with the knob 2 at any angle inside it.

[0051] It is understandable that the structure of the aforementioned limiting protrusion 21 can prevent the knob 2 from becoming loose without affecting its normal function.

[0052] In some embodiments, such as Figure 7 and Figure 8 As shown, the mounting port 11 extends through the cover plate 1 along the circumferential direction of the rotation axis of the knob 2; multiple limiting protrusions 21 are provided at intervals along the circumferential direction of the rotation axis of the knob 2; multiple limiting portions 212 are located on the side of the extension portion 211 facing the rotation axis of the knob 2, and / or on the side of the extension portion 211 away from the rotation axis of the knob 2.

[0053] It should be noted that, corresponding to the multiple limiting portions 212 of the multiple limiting protrusions 21, multiple clearance openings 12 are also provided. The multiple limiting portions 212 can all be located on the side of the extension 211 facing the rotating shaft of the knob 2. In this case, the multiple clearance openings 12 are located on the side of the mounting opening 11 facing its own axis, and the mounting opening 11 is a half-circle or quarter-circle shaped hole. Alternatively, the multiple limiting portions 212 can all be located on the side of the extension 211 away from the rotating shaft of the knob 2. In this case, the multiple clearance openings 12 are located on the side of the mounting opening 11 away from its own axis, and the mounting opening 11 can be a round hole, a circular hole, a half-circle shaped hole, or a quarter-circle shaped hole. The multiple limiting parts 212 can also be such that a portion of the limiting part 212 is located on the side of the extension 211 facing the rotating shaft of the knob 2, and another portion of the limiting part 212 is located on the side of the extension 211 away from the rotating shaft of the knob 2. In this case, a portion of the clearance opening 12 is located on the side of the extension 211 facing the rotating shaft of the knob 2, and another portion of the clearance opening 12 is located on the side of the extension 211 away from the rotating shaft of the knob 2. Then the mounting opening 11 is a hole in the shape of a half or a quarter annulus.

[0054] Understandably, multiple limiting protrusions 21 can improve the reliability of preventing the knob 2 from loosening. Along the circumferential direction of the knob 2's rotation axis, the multiple limiting protrusions 21 can be equally or unequally spaced. For multiple limiting protrusions 21 with unequal spacing, even if the limiting portion 212 of one or more limiting protrusions 21 aligns with the clearance opening 12, the other limiting protrusions 21 can still prevent the knob 2 from loosening. By respectively positioning the limiting portions 212 of the multiple limiting protrusions 21 on the side of the extension 211 facing or away from the knob 2's rotation axis, the reliability of fixing the knob 2 can be further improved.

[0055] In some embodiments, such as Figure 9 and Figure 10 As shown, a rotating post 22 is provided on the side of the knob 2 facing the cover plate 1. The mounting port 11 is used for the rotating post 22 to pass through and connect to the potentiometer 4. The clearance port 12 is located on the side of the mounting port 11 away from the rotating post 22.

[0056] It is understandable that the mounting port 11 accommodates both the extension 211 and the rotating post 22, so it is not difficult to understand that the mounting port 11 is a round hole.

[0057] In some embodiments, such as Figure 6 As shown, a snap-fit ​​part 23 is provided on the side of the knob 2 facing the cover plate 1. The snap-fit ​​part 23 is located away from the rotating shaft of the knob 2 and is snap-fitted to the end of the mounting port 11.

[0058] It should be noted that the axis of rotation of knob 2 can refer to a specific structure provided on knob 2, such as the rotating column 22 in other embodiments, or it can refer to the virtual rotation center axis of knob 2. "The locking part 23 is set away from the axis of rotation of knob 2" means that knob 2 does not have the locking part 23 as its rotation center.

[0059] It is understandable that by setting both the snap-fit ​​part 23 and the limiting protrusion 21 on the side of the knob 2 facing the cover plate 1, the snap-fit ​​part 23 is also installed after the limiting protrusion 21 passes through the mounting port 11 and the clearance port 12.

[0060] In some embodiments, such as Figure 6 As shown, the limiting protrusion 21 is provided with a snap-fit ​​part 23, which is located on the side of the mounting port 11 facing or away from the clearance port 12.

[0061] Understandably, the locking part 23 is provided on the limiting protrusion 21. After the limiting part 212 passes through the clearance opening 12, the locking part 23 immediately locks into the end of the mounting opening 11. When the knob 2 is removed from the cover plate 1, the direction in which the end of the mounting opening 11 drives the locking part 23 to deform still allows the limiting part 212 to be aligned with the clearance opening 12.

[0062] For example, when the mounting opening 11 is a circular hole, the clearance opening 12 is located on the side of the mounting opening 11 away from its own axis. The locking part 23 and the limiting part 212 can be arranged side by side along the circumferential direction of the axis of the mounting opening 11, or they can be arranged sequentially along the axial direction of the axis of the mounting opening 11. If the mounting opening 11 is a circular hole, or a hole in the shape of half or a quarter of a circular ring, then the locking part 23 and the limiting part 212 can be arranged sequentially at intervals along the axial direction of the axis of the mounting opening 11. When the knob 2 is removed from the cover plate 1, the locking part 23 and the extension part 211 are forced to deform, and then the locking part 23 first releases the locking state from the cover plate 1. At this time, the extension part 211 returns to its normal posture, so that the limiting part 212 can be pulled out through the clearance opening 12, thereby removing the knob 2 and facilitating subsequent replacement.

[0063] In some embodiments, such as Figure 4 As shown, the limiting protrusion 21 includes an extension 211 and a limiting part 212. The extension 211 is located in the radial direction of the rotation axis of the knob 2. One end of the extension 211 is connected to the side of the knob 2 facing the cover plate 1. Along the direction of the knob 2 pointing towards the cover plate 1, the locking part 23 and the limiting part 212 are sequentially arranged at the other end of the extension 211.

[0064] Understandably, the locking part 23 is located between the limiting part 212 and the extension part 211 connected to the knob 2. After the locking part 23 is engaged with the cover plate 1, the limiting part 212 can be pulled out through the clearance opening 12, and the disassembly action can be completed in one go.

[0065] In some embodiments, such as Figure 6 As shown, the end of the mounting port 11 opposite to the knob 2 is provided with a locking protrusion 13, the locking part 23 is snapped into the locking protrusion 13, and the clearance port 12 passes through the locking protrusion 13 along the axial direction of the knob 2's rotation axis.

[0066] It should be noted that the locking protrusion 13 protrudes from the end of the mounting opening 11 opposite to the knob 2. Understandably, the locking protrusion 13 enhances the structural strength of the engagement point between the locking part 23 and the cover plate 1. Specifically, the locking protrusion 13 extends upwards around the mounting opening 11, ensuring reliable connection between the locking part 23 and the locking protrusion 13 during knob 2 rotation.

[0067] In some embodiments, such as Figure 7 and Figure 8 As shown, a stop portion 14 is provided on the side of the cover plate 1 facing the knob 2, and a rotating protrusion 24 is provided on the side of the knob 2 facing the cover plate 1. The rotating protrusion 24 extends circumferentially along the rotation axis of the knob 2, and the two ends of the rotating protrusion 24 are used to abut against the stop portion 14.

[0068] It is understandable that, such as Figure 11 , Figure 12 and Figure 13 As shown, when knob 2 is rotated a certain angle, one end of the rotating protrusion 24 will touch the stop part 14, preventing knob 2 from continuing to rotate in the current direction. When knob 2 is rotated a certain angle in the opposite direction, the other end of the rotating protrusion 24 will touch the stop part 14, preventing knob 2 from continuing to rotate in the current direction. The cooperation between the rotating protrusion 24 and the stop part 14 can limit the rotation angle of knob 2, preventing the problem of damaging potentiometer 4 due to excessive rotation angle of knob 2.

[0069] In some embodiments, such as Figure 6 As shown, the outer circumferential surface of the rotating column 22 is provided with a mating surface 221, which is a plane. It can be understood that the rotating column 22 changes the output voltage by connecting to the potentiometer 4, and the mating surface 221 can play a role in limiting the circumferential movement of the potentiometer 4, preventing the rotating column 22 from slipping inside the potentiometer 4.

[0070] This application also provides a refrigerator, which includes a control board 3, a potentiometer 4, and a mounting assembly as described above. The specific structure of the mounting assembly is the same as described in the above embodiments. Since this refrigerator adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The control board 3 is mounted on the side of the cover plate 1 opposite to the knob 2. The potentiometer 4 is electrically connected to the control board 3, and the rotation of the knob 2 drives the potentiometer 4 to rotate. It can be understood that the rotating column 22 of the knob 2 drives the potentiometer 4 to change its output voltage, thereby driving the control board 3 to perform control.

[0071] In some embodiments, such as Figure 10 As shown, the control board 3 is snapped onto the side of the cover plate 1 away from the knob 2, and the potentiometer 4 is located on the side of the control board 3 away from the cover plate 1. The rotating column 22 of the knob 2 passes through the cover plate 1 and the control board 3 in sequence and is connected to the potentiometer 4.

[0072] In the above embodiments, the descriptions of each embodiment have different focuses. Parts not described in detail in a particular embodiment can be referred to in the relevant descriptions of other embodiments. In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0073] The installation components and refrigerator provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An installation component, characterized in that, include: A cover plate for installation on the inner liner of a refrigerator, the cover plate having an installation opening; as well as, A knob, rotatably connected to the cover plate and used to drive the potentiometer of the refrigerator to rotate, the knob being snapped to the end of the mounting port; The cover plate is provided with a clearance opening, which is connected to the mounting opening radially. The knob is provided with a limiting protrusion on the side facing the cover plate. At least a portion of the limiting protrusion is rotatably connected to the mounting opening. The clearance opening is used to allow at least a portion of the limiting protrusion to pass through the mounting opening axially to the side of the cover plate opposite to the knob.

2. The mounting assembly according to claim 1, characterized in that, The limiting protrusion includes an extension and a limiting part. The extension is located radially on the rotation axis of the knob. One end of the extension is connected to the side of the knob facing the cover plate. The limiting part is connected to the other end of the extension. The extension is rotatably connected to the mounting opening. The clearance opening is used to avoid the limiting part.

3. The mounting assembly according to claim 2, characterized in that, The mounting opening extends through the cover plate along the circumferential direction of the knob's axis of rotation; multiple limiting protrusions are spaced apart along the circumferential direction of the knob's axis of rotation; multiple limiting portions are located on the side of the extension facing the knob's axis of rotation, and / or on the side of the extension away from the knob's axis of rotation.

4. The mounting assembly according to claim 3, characterized in that, A rotating post is provided on the side of the knob facing the cover plate. The mounting port is used for the rotating post to pass through and connect to the potentiometer. The clearance port is located on the side of the mounting port away from the rotating post.

5. The mounting assembly according to claim 1, characterized in that, The knob has a snap-fit ​​part on the side facing the cover plate. The snap-fit ​​part is located away from the knob's pivot and is snapped into the end of the mounting port.

6. The mounting assembly according to claim 5, characterized in that, The limiting protrusion is provided with the locking part, which is located on the side of the mounting port facing or away from the clearance port.

7. The mounting assembly according to claim 6, characterized in that, The limiting protrusion includes an extension and a limiting part. The extension is located radially on the rotation axis of the knob. One end of the extension is connected to the side of the knob facing the cover plate. Along the direction of the knob pointing towards the cover plate, the snap-fit ​​part and the limiting part are sequentially arranged at the other end of the extension.

8. The mounting assembly according to claim 7, characterized in that, The mounting port is provided with a locking protrusion on the side opposite to the knob. The locking part is snapped into the locking protrusion, and the clearance opening passes through the locking protrusion along the axial direction of the knob's rotation axis.

9. The mounting assembly according to claim 1, characterized in that, The cover plate has a stop portion on the side facing the knob, and the knob has a rotating protrusion on the side facing the cover plate. The rotating protrusion extends circumferentially along the rotation axis of the knob, and both ends of the rotating protrusion are used to abut against the stop portion.

10. A refrigerator, characterized in that, The device includes a control board, a potentiometer, and a mounting assembly as described in any one of claims 1-9. The control board is mounted on the side of the cover plate opposite to the knob, and the potentiometer is electrically connected to the control board. The knob rotates to drive the potentiometer to rotate.

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