Display control device and refrigerator

Abstract

The application relates to the technical field of electric appliance equipment, and discloses a display control device and a refrigerator. The display control device comprises a mounting body, an encoder and a knob part. The knob part is internally provided with a containing cavity. The mounting body is in rotary cooperation with the knob part. The mounting body is provided with a mounting groove. One end of the knob part in the axial direction of the knob part is inserted into the mounting groove. The mounting groove is in communication with the containing cavity. The encoder is arranged in the containing cavity. The encoder comprises a rotating part and a fixed part. The fixed part is fixedly connected with the mounting body. The rotating part is in rotary cooperation with the fixed part. The knob part is fixedly connected with the rotating part. The size of the knob part protruding relative to the mounting body is reduced. The size of the display control device exposed outside the wall body of the household appliance is small. The thickness of the display control device is reduced. The user experience is improved. Meanwhile, the waterproof performance of the display control device is improved.

Description

Technical Field

[0001] This application relates to the field of electrical equipment technology, and in particular to a display and control device and a freezer. Background Technology

[0002] This section provides only background information relevant to this application and is not necessarily prior art.

[0003] Household appliances, such as refrigerators and freezers, can be equipped with display and control devices. These devices can show the operating status of the appliances and allow users to adjust their operating modes, temperatures, and other settings. In some technologies, the display and control device includes a rotary knob adjustment component. This component works with an encoder to adjust and control the temperature or operating mode. Such display and control devices with rotary knob adjustments are typically large and space-consuming, negatively impacting the user experience. Utility Model Content

[0004] The purpose of this application is to at least alleviate the problem of the large external size of the display and control device. This purpose is achieved through the following technical solution:

[0005] The first aspect of this application discloses a display and control device, which includes a mounting body, an encoder, and a knob. The knob has a receiving cavity inside. The mounting body is rotatably engaged with the knob. The mounting body has a mounting groove. One end of the knob along its own axial direction is inserted into the mounting groove, and the mounting groove communicates with the receiving cavity. The encoder is disposed in the receiving cavity. The encoder includes a rotating part and a fixed part. The fixed part is fixedly connected to the mounting body. The rotating part is rotatably engaged with the fixed part. The knob is fixedly connected to the rotating part.

[0006] According to the display and control device of this application, the mounting body and the knob are rotatably coupled. The rotating part of the encoder is connected to the knob, and the fixed part of the encoder is connected to the mounting body. Rotating the knob drives the rotating part of the encoder to rotate, thereby inputting corresponding control signals to the circuit board. The knob has a receiving cavity, and the encoder is built into the receiving cavity of the knob. The display and control device has a good overall appearance and a high degree of structural integration. The mounting body can be used to connect to household appliances to install the display and control device. The mounting body has a mounting groove, and one end of the knob is set in the mounting groove. This reduces the size of the knob protruding relative to the mounting body. When the display and control device is applied to household appliances, the size exposed on the outside of the appliance wall is smaller, reducing the thickness of the display and control device and improving the user experience. At the same time, the knob is built into the mounting groove, and the part of the mounting body that surrounds the knob can play a good waterproof role. This reduces the possibility of external moisture entering the receiving cavity of the knob from the mating position of the mounting body and the knob, which could damage the encoder and other components. This improves the waterproof performance of the display and control device and helps to improve the reliability and service life of the display and control device.

[0007] In addition, the display and control device according to this application may also have the following additional technical features:

[0008] In some embodiments of this application, the mounting body includes an assembly portion and a receiving portion. The assembly portion is disposed around the receiving portion along the axial direction of the knob. The receiving portion protrudes from the assembly portion in a direction away from the knob. The mounting groove is disposed in the receiving portion.

[0009] In some embodiments of this application, the knob includes a main body ring and an annular flange. The main body ring surrounds and forms the receiving cavity. One end of the main body ring facing the mounting body is inserted into the mounting groove. The annular flange is connected to the outer periphery of the main body ring and is located at the end of the main body ring opposite to the mounting body. A first mating part is provided on the side of the annular flange facing the mounting body. The assembly part includes a second mating part. The first mating part and the second mating part are mated and configured to be rotatable relative to each other.

[0010] In some embodiments of this application, the first mating portion and the second mating portion are engaged in a recessed-protrusion fitting along the axial direction of the knob.

[0011] In some embodiments of this application, the first mating portion includes a first protruding ring portion, the second mating portion is provided with an annular groove, and the first protruding ring portion is inserted into the annular groove.

[0012] In some embodiments of this application, the assembly part further includes a mounting plate surrounding the outer periphery of the second mating part, the mounting plate being used to connect to the housing of a household appliance.

[0013] In some embodiments of this application, along the circumference of the knob, the second mating portion protrudes relative to the mounting plate in a direction away from the knob.

[0014] In some embodiments of this application, a second protruding ring portion is further provided on the side of the annular flange facing the mounting body. The second protruding ring portion surrounds the outer periphery of the first mating portion and is directly opposite to the mounting plate and has a clearance fit.

[0015] In some embodiments of this application, the knob is a one-piece molded structural component;

[0016] And / or, the mounting body is a one-piece molded structural component.

[0017] In some embodiments of this application, the display and control device further includes a circuit board disposed in the accommodating cavity and electrically connected to the encoder. The circuit board is fixedly disposed relative to the fixing part. The mounting body is provided with a wire through hole, through which the wire harness connected to the circuit board passes.

[0018] In some embodiments of this application, the display and control device further includes a panel assembly disposed in the accommodating cavity and connected to the circuit board. Along the axial direction of the knob, the panel assembly and the encoder are respectively disposed on both sides of the circuit board.

[0019] The second aspect of this application provides a freezer, including a freezer body and a display and control device as described in this application or any embodiment thereof. The freezer body has a cabinet, and the mounting body of the display and control device is connected to the cabinet.

[0020] The freezer described in this application has the same beneficial effects as the display and control device proposed in this application or any embodiment of this application. Attached Figure Description

[0021] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0022] Figure 1 This is a schematic diagram of the display and control device proposed in some embodiments of this application;

[0023] Figure 2 This is a schematic diagram of the split design of the display and control device proposed in some embodiments of this application;

[0024] Figure 3This is a cross-sectional schematic diagram of a display and control device proposed in some embodiments of this application;

[0025] Figure 4 This is a schematic structural diagram of the mounting body proposed in some embodiments of this application from one perspective;

[0026] Figure 5 This is a structural schematic diagram of the mounting body proposed in some embodiments of this application from another perspective;

[0027] Figure 6 This is a schematic diagram of the encoder structure from one perspective, based on some embodiments of this application;

[0028] Figure 7 This is a schematic diagram of the encoder proposed in some embodiments of this application from another perspective;

[0029] Figure 8 This is a schematic diagram of the structure of a knob component proposed in some embodiments of this application from one perspective;

[0030] Figure 9 This is a schematic diagram of the knob component proposed in some embodiments of this application from another perspective;

[0031] Figure 10 This is a cross-sectional schematic diagram of a knob component proposed in some embodiments of this application;

[0032] Figure 11 This is a schematic diagram of the structure of the fastener proposed in some embodiments of this application;

[0033] Figure 12 This is a schematic diagram of the installation body installed in the housing according to some embodiments of this application;

[0034] Figure 13 for Figure 12 Enlarged view of part A;

[0035] Figure 14 This is a simplified schematic diagram of the structure of a freezer proposed in some embodiments of this application;

[0036] Figure 15 for Figure 14 BB section view;

[0037] Figure 16 for Figure 15 Enlarged view of part C;

[0038] Figure 17 This is a schematic diagram of a box body proposed in some embodiments of this application from one perspective;

[0039] Figure 18 for Figure 17 Enlarged view of part D.

[0040] The attached figures are labeled as follows:

[0041] 10. Display and control device; 20. Cabinet; 21. First wall; 22. Outer shell; 23. Inner wall surface; 24. Positioning protrusion; 25. Mounting hole; 26. Insulation layer;

[0042] 100. Mounting body; 101. Mounting plate; 102. Receiving part; 103. Mounting groove; 105. Wiring part; 106. Wiring hole; 108. Assembly part; 109. Second mating part; 110. Second annular groove; 111. First stop part; 1111. Water-blocking structure; 112. Second stop part; 113. First connecting part; 120. Third snap-fit ​​component; 121. Third snap-fit; 130. First positioning component; 131. Positioning pin; 140. Second positioning component; 141. Positioning groove;

[0043] 200, encoder; 210, rotating part; 211, first snap-fit ​​component; 212, first buckle; 220, fixing part; 221, second slot; 2211, abutting surface; 230, first through hole;

[0044] 300. Knob; 301. Receiving cavity; 302. First annular groove; 303. First mating part; 310. Main body ring; 311. Annular part; 3111. First annular part; 3112. Second annular part; 312. First slot; 320. Annular flange; 330. First convex annular part; 340. Waterproof annular groove; 341. First water-blocking part; 342. Second water-blocking part; 343. Second connecting part; 344. Reinforcing support part; 345. Communicating gap; 350. Second convex annular part;

[0045] 400. Circuit board;

[0046] 500. Panel assembly; 510. First panel; 520. Display panel;

[0047] 600, Fixing component; 610, Base body; 611, Positioning hole; 612, Connecting hole; 614, First reinforcing part; 615, Second reinforcing part; 620, Assembly part; 621, Second snap-fit ​​component; 622, Second snap-fit; 630, Wiring hole; 640, Limiting ring. Detailed Implementation

[0048] Exemplary embodiments of this application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of this application and to fully convey the scope of this application to those skilled in the art.

[0049] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0050] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0051] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations.

[0052] like Figures 1 to 18 As shown, this application embodiment provides a display and control device 10, including a mounting body 100, an encoder 200, and a knob 300.

[0053] The knob 300 has an internal receiving cavity 301, and the encoder 200 is disposed within the receiving cavity 301. The encoder 200 includes a rotating part 210 and a fixed part 220. The fixed part 220 is fixedly connected to the mounting body 100, the rotating part 210 is rotatably engaged with the fixed part 220, and the knob 300 is fixedly connected to the rotating part 210 (the fixed connection here can be understood as the knob 300 and the rotating part 210 being relatively fixed at least in the circumferential direction of the knob 300).

[0054] The mounting body 100 can be used to connect to the enclosure 20 of a household appliance, and the display and control device 10 is mounted on the household appliance via the mounting body 100. For example... Figures 2 to 5 As shown, the mounting body 100 is provided with a mounting groove 103, and one end of the main body ring 310 is inserted into the mounting groove 103. The mounting body 100 can be recessed to form the mounting groove 103, and the mounting groove 103 communicates with the receiving cavity 301 so as to facilitate the connection between the mounting body 100 and the fixing part 220.

[0055] In this embodiment, the display and control device 10 has a rotating connection between the mounting body 100 and the knob 300. The rotating part 210 of the encoder 200 is connected to the knob 300, and the fixing part 220 of the encoder 200 is connected to the mounting body 100. By rotating the knob 300, the rotating part 210 of the encoder 200 can be rotated, thereby inputting corresponding control signals to the circuit board 400. The knob 300 is provided with a receiving cavity 301, and the encoder 200 is built into the receiving cavity 301 of the knob 300. The display and control device 10 has a good overall appearance and a high degree of structural integration. The mounting body 100 can be used to connect to household appliances to install the display and control device 10. The mounting body 100 is provided with a mounting groove 103, and one end of the knob 300 is set in the mounting groove 103. This reduces the size of the knob 300 protruding relative to the mounting body 100, and the size of the display and control device 10 exposed on the outside of the wall of the household appliance is smaller, reducing the thickness of the display and control device 10. This reduces the possibility of the display and control device 10 being damaged by bumps and knocks, improves the user experience, and also reduces the packaging size of the household appliance, reducing transportation costs. At the same time, the knob 300 is built into the mounting groove 103, and the part of the mounting body 100 that can surround the knob 300 can play a better waterproof role. This reduces the possibility of external moisture entering the receiving cavity 301 of the knob 300 from the mating position of the mounting body 100 and the knob 300, which may damage the encoder 200 and other components. This improves the waterproof performance of the display and control device 10 and helps to improve the reliability and service life of the display and control device 10.

[0056] According to some embodiments of this application, optionally, such as Figure 2 and Figure 3As shown, the display and control device 10 may also include a circuit board 400, which is disposed in the accommodating cavity 301 and electrically connected to the encoder 200.

[0057] The mounting body 100 may be provided with a wire hole 106, through which the wire harness connected to the circuit board 400 passes out.

[0058] According to some embodiments of this application, optionally, the mounting body 100 includes an assembly portion 108 and a receiving portion 102. The assembly portion 108 is disposed around the receiving portion 102 along the axial direction of the knob 300. The receiving portion 102 is disposed in a direction away from the knob 300 relative to the assembly portion 108. The mounting groove 103 is disposed in the receiving portion 102.

[0059] In this embodiment, the display and control device 10 can be connected to the cabinet 20 of a household appliance via the assembly part 108. The receiving part 102 protrudes and forms a mounting groove 103, which can have a large depth, allowing a larger portion of the knob 300 to be embedded in the mounting groove 103, thus reducing the axial protrusion of the knob 300. The assembly part 108 is designed to be relatively thin, which can improve the ease of connection between the assembly part 108 and the cabinet 20 of the household appliance, save materials, and reduce production costs. Moreover, in some implementations, the assembly part 108 of the mounting body 100 can be built into the inner side of the outer shell 22. The thinner assembly part 108 can reduce the space occupied by the insulation material and improve the insulation performance of the cabinet.

[0060] For example, such as Figure 1 As shown, the assembly part 108 also includes a mounting plate 101, which is used to connect to the housing 20 of the household appliance (specifically, the first wall 21).

[0061] Optionally, the assembly portion 108 may also have a second mating portion 109 that mates with the knob 300. According to some embodiments of this application, optionally, reference is made to... Figure 2 , Figure 3 , Figures 8 to 10 As shown, the knob component 300 includes a main body ring 310 and an annular flange 320. The main body ring 310 surrounds and forms a receiving cavity 301. The end of the main body ring 310 facing the mounting body 100 is inserted into the mounting groove 103. The annular flange 320 is connected to the outer periphery of the main body ring 310 and is located at the end of the main body ring 310 away from the mounting body 100. A first mating part 303 is provided on the side of the annular flange 320 facing the mounting body 100. The assembly part 108 includes a second mating part 109. The first mating part 303 and the second mating part 109 are mated and configured to be rotatable relative to each other. The mounting plate 101 surrounds the outer periphery of the second mating part 109.

[0062] Optionally, along the axial direction of the knob 300, the first mating part 303 and the second mating part 109 are engaged in a recessed-convex insertion fit.

[0063] By setting the first mating part 303 and the second mating part 109, not only can the aesthetics of the display and control device 10 be improved, but the waterproof performance between the knob part 300 and the mounting body 100 can also be improved.

[0064] For example, in some implementations, the first mating part 303 includes a first protruding ring part 330, and the second mating part 109 is provided with an annular groove (defined as the second annular groove 110 for ease of description), and the first protruding ring part 330 is inserted into the annular groove (refer to the second annular groove 110).

[0065] The second mating part 109 may include a second annular groove 110, which may be formed by a partial recess in the mounting body 100. A first convex ring 330 is inserted into the second annular groove 110, and the first convex ring 330 and the second annular groove 110 are configured to be in clearance fit.

[0066] By setting the first convex ring 330 to be inserted into the second annular groove 110, the waterproof performance between the knob 300 and the mounting body 100 can be improved.

[0067] According to some embodiments of this application, optionally, such as Figure 3 As shown, along the circumference of the knob 300, the second mating portion 109 protrudes from the mounting plate 101 in a direction away from the knob 300, so as to form a second annular groove 110 with a certain depth while improving structural strength. The receiving portion 102 protrudes from the second mating portion 109 in a direction away from the knob 300.

[0068] According to some embodiments of this application, optionally, a second protruding ring portion 350 is provided on the side of the annular flange 320 facing the mounting body 100. The second protruding ring portion 350 surrounds the outer periphery of the first mating portion 303, and the second protruding ring portion 350 is directly opposite to the mounting plate 101 and has a clearance fit.

[0069] For example, such as Figure 3 , Figures 8 to 10 , Figure 16 and Figure 17 As shown, along the radial direction of the main body ring 310, the annular flange 320 on the outer periphery of the main body ring 310 protrudes toward the mounting body to form a second convex ring portion 350.

[0070] The second convex ring portion 350 is configured to have a clearance fit with the surface of the mounting body 100. Specifically, the second convex ring portion 350 can be located on the outer wall surface of the first wall 21 and has a clearance fit with the outer wall surface of the first wall 21. This clearance fit between the second convex ring portion 350 and the first wall 21 improves the smoothness of rotation of the knob 300. The clearance should be as small as possible, specifically less than 1 mm. The second convex ring portion 350 is located outside the first convex ring portion 330, which can protect the first convex ring portion 330 and reduce the possibility of dust or other contaminants entering the gap between the first convex ring portion 330 and the second annular groove 110, thus improving the reliability of the display and control device 10.

[0071] According to some embodiments of this application, the knob 300 may optionally be a one-piece molded structural component. Exemplarily, the knob 300 may be a metal part, which can be integrally molded by processes such as casting or extrusion. An integrally molded knob 300 can give the display and control device 10 better overall integrity, a better appearance, and better strength and waterproof performance.

[0072] According to some embodiments of this application, optionally, the mounting body 100 is a one-piece molded structural component. Exemplarily, the mounting body 100 can be a plastic part, which can be integrally molded by injection molding. The one-piece molded mounting body 100 is easy to process and has good strength and waterproof performance.

[0073] The mounting body 100 is provided with a second mating part 109, and the knob part 300 has a first mating part 303. The first mating part 303 is arranged around the receiving cavity 301. The second mating part 109 is rotatably mated with the first mating part 303, and a water-blocking structure 1111 is provided between the second mating part 109 and the first mating part 303.

[0074] The water-blocking structure 1111 can be a part of the second mating part 109 or the first mating part 303, or it can be an additional structural component provided on the basis of the second mating part 109 and the first mating part 303. The water-blocking structure 1111 is located outside the accommodating cavity 301 and can block water vapor at the mating position of the second mating part 109 and the first mating part 303 to reduce the possibility of water vapor entering the accommodating cavity 301.

[0075] For example, the second mating part 109 and the first mating part 303 can be a groove and a protrusion mating structure, and the groove and protrusion mating position of the second mating part 109 and the first mating part 303 can form a water-blocking structure 1111.

[0076] In this embodiment of the display and control device, the mounting body 100 and the knob 300 are rotatably engaged through the second mating part 109 and the first mating part 303. The rotating part 210 of the encoder 200 is connected to the knob 300, and the fixing part 220 of the encoder 200 is connected to the mounting body 100. By rotating the knob 300, the rotating part of the encoder 200 can be rotated, and corresponding control signals can be input to the circuit board 400.

[0077] In this embodiment, the display and control device 10, during use, the knob 300 drives the rotating part 210 to rotate, while the fixing part 220, the mounting body 100, and the circuit board 400 are relatively fixed. The circuit board 400 can be directly connected to the fixing part 220; for example, the circuit board 400 can be directly connected to the fixing part 220 via its back to maintain relative fixation. Alternatively, the circuit board 400 can be connected to the mounting body 100 to maintain relative fixation with the fixing part 220.

[0078] The knob 300 is provided with a receiving cavity 301, in which the encoder 200 and circuit board 400 can be built into the receiving cavity 301 of the knob 300. The overall appearance of the display and control device is good and the structural integration is high. At the same time, there is a water-blocking structure 1111 between the second mating part 109 and the first mating part 303, which can reduce the possibility of external moisture entering the receiving cavity 301 of the knob 300 from the mating position between the mounting body 100 and the knob 300, and damaging the encoder 200, circuit board 400 and other components. This improves the waterproof performance of the display and control device and helps to improve the reliability and service life of the display and control device.

[0079] According to some embodiments of this application, optionally, in some embodiments, the knob 300 includes a main body ring 310, the main body ring 310 surrounds and forms a receiving cavity 301, the main body ring 310 is connected to the rotating part 210, the first mating part 303 is disposed on the outer periphery of the main body ring 310, and the second mating part 109 includes a first stop part 111, the first stop part 111 is disposed around the outside of the main body ring 310 and forms a water-blocking structure.

[0080] The first stop 111 can be an integral structure with the mounting body 100, and it can protrude relative to the main body of the mounting body 100.

[0081] The first stop 111 surrounds the outer side of the main body ring 310. Moisture entering from the mating position between the mounting body 100 and the knob 300 can be stopped by the first stop 111, thereby reducing the possibility of moisture entering the interior of the mounting body 100.

[0082] like Figure 3As shown, optionally, the second mating portion 109 may include a second annular groove 110, which may be formed by a partial recess in the mounting body 100. A first stop portion 111 is at least partially surrounding the second annular groove 110. The second annular groove 110 surrounds the encoder 200, and the first stop portion 111 is located on the side of the second annular groove 110 facing the encoder 200. The first mating portion 303 includes a first protruding ring portion 330, which is inserted into the second annular groove 110, and the first protruding ring portion 330 and the second annular groove 110 are configured for a sliding fit.

[0083] The display and control device 10 in this embodiment can be applied to household appliances. By rotating the encoder 200's rotating part 210 through the knob 300, it can be used to adjust the operating mode, operating level, temperature, etc. of the household appliances.

[0084] For example, in some embodiments, the household appliance may be a cold storage device, such as a refrigerator or freezer, and the knob 300 is configured to adjust the set temperature of the cold storage device.

[0085] The mounting body 100 is the mounting carrier for the display and control device 10, which can be used to connect to the cabinet 20 of the household appliance to install the display and control device 10 on the household appliance.

[0086] The encoder 200 is used to detect the rotation angle of the knob 300 to determine the desired operating state. Specifically, the encoder 200 has a detection component capable of measuring the rotation angle of the rotating part 210 relative to the fixed part 220. The knob 300 drives the rotating part 210 to rotate. The encoder 200 determines the rotation angle of the knob 300 by detecting the rotation angle of the rotating part 210 relative to the fixed part 220, and sends the information corresponding to this rotation angle to the main control component of the home appliance via the circuit board 400. The main control component determines the information input by the user through the knob 300 based on a preset built-in program and the received information, and adjusts the operating state of the home appliance accordingly.

[0087] For example, the encoder 200 may be a photoelectric encoder 200, whose detection component may include a photoelectric sensor and a code disk that cooperates with the photoelectric sensor. One of the code disk and the photoelectric sensor may be disposed in the fixed part 220 and the other in the rotating part 210. The photoelectric sensor may be used to receive changes in light and convert them into electrical signals, and send the electrical signals to the circuit board 400.

[0088] For example, the encoder 200 may also be a detection component, such as a magnetoelectric encoder 200 or a capacitive encoder 200.

[0089] The fixing part 220 of the encoder 200 is fixedly installed on the mounting body 100. The fixing part 220 and the mounting body 100 can be detachably connected or non-detachably connected. The fixing part 220 and the rotating part 210 of the encoder 200 can be ring-shaped structures. The fixing part 220 can be the inner ring of the encoder 200, and the rotating part 210 can be the outer ring of the encoder 200. The rotating part 210 can be sleeved on the outer periphery of the fixing part 220.

[0090] It should be noted that in some other implementations (which are not shown in the accompanying drawings), the fixing part 220 may also be arranged sequentially with the rotating part 210 along the axial direction and rotate in cooperation. In this case, the fixing part 220 may be located on the side of the rotating part 210 that is axially away from the mounting body 100, and the fixing part 220 may be located on the side of the annular part 311 (specifically the second annular part 3112) that is away from the mounting body 100, and cooperate with the annular part 311 in an axial upper limit.

[0091] Optionally, a first through hole 230 may be provided at the center of the fixing part 220, through which the wire harness of the circuit board 400 can pass.

[0092] The mounting body 100 can be a one-piece molded structure. The mounting body 100 can be partially recessed to form a second annular groove 110. The first stop 111 is part of the mounting body 100, specifically surrounding one of the groove walls forming the second annular groove 110. The second annular groove 110 can be arranged around the receiving cavity 301 in a circle.

[0093] The second annular groove 110 can be a groove with a U-shaped, circular arc, or elliptical arc cross-section. That is, the groove wall of the second annular groove 110 can also include a second stop portion 112 and a first connecting portion 113.

[0094] For example, the second mating part 109 further includes a first connecting part 113 and a second stop part 112. The first stop part 111, the first connecting part 113 and the second stop part 112 surround to form a second annular groove 110. The second stop part 112 and the first stop part 111 are disposed opposite to each other and are located on opposite sides of the first convex ring part 330, respectively. The first connecting part 113 connects the first stop part 111 and the second stop part 112.

[0095] The first connecting part 113 and the second stop part 112 are both groove walls surrounding the second annular groove 110.

[0096] The knob 300 can be a one-piece molded structure. The first protruding ring 330 of the knob 300 can be a ring-shaped part, and the first protruding ring 330 is adapted to the second annular groove 110. It can be inserted into the second annular groove 110 and has sliding gaps with each groove wall surrounding the second annular groove 110 to facilitate the rotation of the knob 300.

[0097] In this embodiment, the display and control device 10 has a second annular groove 110 on the mounting body 100. The first convex ring portion 330 of the knob 300 is disposed in the second annular groove 110. The first stop portion 111 surrounding the second annular groove 110 is located on the side of the first convex ring portion 330 facing the receiving cavity 301, so that the first convex ring portion 330 and the second annular groove 110 cooperate to form a waterproof structure between the knob 300 and the mounting body 100. When external moisture enters the second annular groove 110 (external moisture enters the second annular groove 110 through the connection gap between the mounting body 100 and the knob 300), or when moisture on the knob 300 accumulates at the first convex ring portion 330, the moisture can be stopped by the first stop portion 111 and flow away along the first stop portion 111, reducing the possibility of moisture entering the receiving cavity 301 of the knob 300 and damaging the encoder 200, circuit board 400 and other devices, improving waterproof performance, and helping to improve the reliability and service life of the device. Furthermore, by using the second annular groove 110 and the first stop portion 111 as a waterproof structure, the sealing ring can be reduced or eliminated, which not only simplifies the structure of the display and control device 10, but also reduces the rotational resistance of the knob 300, improves the smoothness of the knob 300's rotation, and enhances the user experience. By setting the second annular groove 110, the first mating portion 303 of the knob 300 can be partially embedded in the second annular groove 110, which can also reduce the axial dimension of the display and control device.

[0098] Optionally, the first convex ring portion 330 is clearance-fitted with the groove wall surrounding the second annular groove 110.

[0099] Specifically, such as Figure 3As shown, the first convex ring portion 330 is inserted between the first stop portion 111 and the second stop portion 112. The first convex ring portion 330 and the first stop portion 111, the first convex ring portion 330 and the second stop portion 112, and the first convex ring portion 330 and the first connecting portion 113 can all be configured as clearance fits. Among them, the clearances between the first convex ring portion 330 and the first stop portion 111, the first convex ring portion 330 and the second stop portion 112, and the first convex ring portion 330 and the first connecting portion 113 should be set as small as possible. That is to say, without interfering with the rotation of the first convex ring portion 330 relative to the mounting body 100, the clearance between the groove wall of the second annular groove 110 surrounding the mounting body 100 and the first convex ring portion 330 should be as small as possible. Optionally, the gaps between the first convex ring portion 330 and the first stop portion 111, the gaps between the first convex ring portion 330 and the second stop portion 112, and the gaps between the first convex ring portion 330 and the first connecting portion 113 can be set to less than or equal to 0.5 mm. Specifically, the gaps between the first convex ring portion 330 and the first stop portion 111, the gaps between the first convex ring portion 330 and the second stop portion 112, and the gaps between the first convex ring portion 330 and the first connecting portion 113 can each be set to less than or equal to 0.3 mm, specifically from 0.2 mm to 0.3 mm.

[0100] Understandably, the clearance fit of the mounting body 100 with the first convex ring 330 through the second annular groove 110 allows for clearance fit between the mounting body 100 and the knob 300, reducing the possibility of interference from the mounting body 100 when the knob 300 rotates, and improving the smoothness and convenience of the knob 300.

[0101] The first protruding ring portion 330 can be connected to the outer periphery of the main body ring 310. The first protruding ring portion 330 and the main body ring 310 can be an integral structure, specifically, they can be a one-piece molded structure.

[0102] The first convex ring 330 is disposed on the outside of the main body ring 310 and inserted into the second annular groove 110. The first convex ring 330 and the first stop 111 form a waterproof protective layer on the outside of the main body ring 310, while the encoder 200 and the circuit board 400 are located inside the main body ring 310. This can form a multi-layer protection, improve the waterproof performance of the display and control device 10, and reduce the possibility of water vapor entering the accommodating cavity 301 and damaging the encoder 200 and the circuit board 400.

[0103] Optionally, the first mating part 303 includes a first annular groove 302, and the first stop part 111 is at least partially inserted into the first annular groove 302.

[0104] For example, such as Figure 3As shown, along the axial direction of the main ring 310, one end of the first convex ring 330 is fixedly connected to the main ring 310, and the other end of the first convex ring 330 forms a first annular groove 302 between the outer peripheral surface of the main ring 310 and the first stop 111 is inserted into the first annular groove 302.

[0105] Optionally, the first stop portion 111 surrounds the circumference of the mounting groove 103, and the first stop portion 111 can be inserted into the first annular groove 302.

[0106] The first convex ring portion 330 is inserted into the second annular groove 110, while the first stop portion 111 surrounding the second annular groove 110 is simultaneously inserted into the first annular groove 302 between the first convex ring portion 330 and the main body ring 310, forming an interlocking waterproof structure. After the moisture on the exposed part of the knob 300 enters the second annular groove 110 from the first convex ring portion 330, it is difficult to enter the receiving cavity 301 through the interlocking waterproof structure, thereby further improving the waterproof performance of the display and control device 10 and reducing the possibility of moisture entering the receiving cavity 301 and damaging the encoder 200 and circuit board 400.

[0107] In some embodiments of this application, optionally, such as Figure 1 , Figure 2 , Figure 3 As shown, the display and control device 10 may also include a panel assembly 500. Optionally, the panel assembly 500 may be arranged side by side with the knob 300 on the housing 20; alternatively, the panel assembly 500 may also be disposed within the receiving cavity 301 of the knob 300. In this way, the knob 300 is covered by the outside of the panel assembly 500, the encoder 200, etc., and the knob 300 can integrate decoration and rotation functions, thereby improving the overall appearance of the product.

[0108] According to some embodiments of this application, optionally, the panel assembly 500 is disposed in the receiving cavity 301 and connected to the circuit board 400, and along the axial direction of the knob 300, the panel assembly 500 and the encoder 200 are respectively disposed on both sides of the circuit board 400.

[0109] The panel assembly 500 may include a display panel 520, which is connected to a circuit board 400. The circuit board 400 receives electrical signals from the encoder 200 and cooperates with the display panel 520 to perform display.

[0110] The display panel 520 can be roughly a lampshade structure with multiple through holes. The circuit board 400 can be equipped with light strips. The light strips on the circuit board 400 cooperate with the through holes on the display panel 520 to display text or patterns that can be observed by the user.

[0111] The display panel 520 can be disposed within the accommodating cavity 301, and the encoder 200 and the display panel 520 can be disposed on opposite sides of the circuit board 400. The display panel 520, the fixing part 220 of the encoder 200, and the circuit board 400 can be kept relatively fixed.

[0112] For example, the display panel 520 is directly fixed to the circuit board 400. For instance, the display panel 520 is directly fixed to the front side of the circuit board 400 by means of adhesive, snap-fit, soldering, etc.

[0113] The display panel 520 is located in the receiving cavity 301 of the knob 300. The display panel 520 and the encoder 200 can share a circuit board 400, which has a high degree of structural integration and saves costs.

[0114] Optionally, in some embodiments, the panel assembly 500 includes a first panel 510, which is disposed at the end of the knob 300 opposite to the mounting body 100, and covers the end of the receiving cavity 301 opposite to the mounting body 100. The first panel 510 covering the receiving cavity 301 can protect the circuit board 400 and encoder 200 inside the receiving cavity 301, and can also improve the aesthetics of the display and control device 10.

[0115] The first panel 510 can be a light-transmitting cover that serves only a protective and decorative purpose, and it can be made of transparent or semi-transparent material. The first panel 510 and the fixing part 220 can remain relatively fixed.

[0116] For example, the first panel 510 can be connected to the fixing part 220 or the mounting body 100 via a connecting component to mount the first panel 510 and keep the first panel 510 and the fixing part 220 relatively fixed.

[0117] For example, such as Figure 3 As shown, both the display panel 520 and the first panel 510 are disposed within the accommodating cavity 301. The first panel 510 is located on the side of the display panel 520 away from the circuit board 400. The first panel 510 is disposed at the end of the knob 300 away from the mounting body 100 and covers the accommodating cavity 301 and other components within the accommodating cavity 301. The first panel 510 can be directly fixed to the display panel 520 by means of adhesive or other methods, so that the first panel 510 and the fixing part 220 remain relatively fixed.

[0118] Optionally, a sensing element can be provided on the circuit board 400. The first panel 510 contacts and is fixedly connected to the display panel 520, and the display panel 520 contacts and is fixedly connected to the circuit board 400. When a user presses the first panel 510, the pressure is transmitted to the sensing element on the circuit board. Alternatively, touching the corresponding sensing area on the first panel 510 causes the sensing element to detect changes in capacitance. Thus, by pressing or touching the corresponding area of ​​the display control panel, basic functions such as switching the operating mode of home appliances and unlocking can be performed. In this type of display control device 10, the first panel 510 only needs to be mechanically connected to the display panel 520 and the circuit board 400. The structure of the first panel 510 is simple and the cost is low.

[0119] During the rotation of the knob 300, the first panel 510 can be set to be fixed. In this way, the first panel 510 does not need to rotate with the knob 300, making the arrangement of the first panel 510 more convenient. It can also reduce the possibility of poor sensory effect of the display and control device 10 caused by the rotation of the first panel 510, and improve the user's ease of observation of the displayed information of the display and control device 10.

[0120] It should be noted that in some other embodiments, the first panel 510 can also be a display and control panel, which is connected to the circuit board 400. The display and control panel can be a touch screen or a panel with operation buttons. The circuit board 400 can receive electrical signals from the display and control panel and display them through the display panel 520. The circuit board 400 can also send electrical signals to the main control component of the home appliance to control the home appliance. By setting the display and control panel, corresponding control commands can be input to the main control component. For example, the display and control panel can be set to allow basic functions such as switching the operating mode and unlocking the home appliance by touching or pressing the display and control panel. The display and control panel can be set in the accommodating cavity 301, and the display and control panel, encoder 200, and display panel 520 can be centrally located. The display and control panel, display panel 520, and encoder 200 share a single circuit board 400, integrating the structure into one unit. This results in a neat and aesthetically pleasing appearance, smaller space occupation, and cost savings. Furthermore, the display control panel, display board 520, and knob 300 can occupy only one position in the housing 20. The housing 20 does not need to be provided with clearance holes for the display control panel (or display board 520) and knob 300 respectively, which improves the processing convenience of the housing 20 and reduces the impact of openings on the internal insulation of the housing 20.

[0121] In some embodiments, optionally, a waterproof annular groove 340 is provided at one end of the knob 300 away from the mounting body 100. The waterproof annular groove 340 is arranged around the circumference of the knob 300. The first panel 510 covers the waterproof annular groove 340. The knob 300 has a first water-blocking part 341, which surrounds the side of the waterproof annular groove 340 facing the receiving cavity 301.

[0122] For example, refer to Figure 2 , Figure 3 , Figures 8 to 10 As shown, an annular flange 320 is provided at the end of the main ring 310 facing away from the mounting body 100. Along the radial direction of the main ring 310, the annular flange 320 protrudes outward relative to the main ring 310 and forms a ring around the circumference of the main ring 310. The end of the annular flange 320 facing the mounting body 100 is connected to the first protruding ring portion 330. A waterproof ring groove 340 is provided at the end of the annular flange 320 facing away from the mounting body 100. The end face of the annular flange 320 facing away from the mounting body 100 can be partially recessed to form the waterproof ring groove 340, or the outer circumferential surface of the main ring 310 and the annular flange 320 can cooperate to form the waterproof ring groove 340. The portion located between the waterproof ring groove 340 and the receiving cavity 301 constitutes the first water-blocking portion 341. The annular flange 320 and the main ring 310 can be configured as an integral structure, and the first protruding ring portion 330 and the annular flange 320 can be configured as an integral structure.

[0123] By setting the waterproof annular groove 340, the possibility of external moisture entering the accommodating cavity 301 can be reduced, thus improving the waterproof performance of the display and control device 10. Specifically, external moisture enters the waterproof annular groove 340 first after entering through the gap between the first panel 510 and the knob 300. The moisture is stopped by the first water-blocking part 341 surrounding the waterproof annular groove 340 and can flow out after gathering along the circumference of the first water-blocking part 341. This reduces the possibility of moisture entering the accommodating cavity 301 through the gap between the first panel 510 and the knob 300, and reduces the damage of moisture to components such as the circuit board 400, encoder 200, and display panel 520 inside the accommodating cavity 301.

[0124] Optionally, the knob 300 further includes a second water-blocking portion 342 and a second connecting portion 343, with the first water-blocking portion 341, the second water-blocking portion 342, and the second connecting portion 343 forming a waterproof annular groove 340. The second water-blocking portion 342 is disposed opposite to the first water-blocking portion 341, and the second water-blocking portion 342 is located on the side of the first water-blocking portion 341 away from the receiving cavity 301. The second connecting portion 343 connects the second water-blocking portion 342 and the first water-blocking portion 341. The second water-blocking portion 342 protrudes in the direction away from the second connecting portion 343 compared to the first water-blocking portion 341. The first panel 510 is located on the side of the second water-blocking portion 342 facing the receiving cavity 301.

[0125] The first water-blocking part 341, the second water-blocking part 342, and the second connecting part 343 are all formed by the walls of the waterproof annular groove 340. The waterproof annular groove 340 can be a groove with a U-shaped cross-section.

[0126] The first panel 510 is located on the inner circumferential surface of the second water-blocking part 342. The edge of the first panel 510 is surrounded by the second water-blocking part 342, which can protect the first panel 510. The display and control device 10 has a good structural aesthetics and overall integrity.

[0127] Optionally, in some embodiments, the knob 300 is configured to be rotatable around the panel assembly 500, that is, the panel assembly 500 (first panel 510) and the mounting body 100 remain relatively fixed, and when the knob 300 rotates, the panel assembly 500, the circuit board 400, the fixing part 220 of the encoder 200 and the mounting body 100 remain fixed.

[0128] For example, along the axial direction of the knob 300, the encoder 200 and the panel assembly 500 are respectively disposed on both sides of the circuit board 400. The panel assembly 500 is connected to and relatively fixed to the circuit board 400. The panel assembly 500 and the knob 300 can be clearance-fitted so that the knob 300 is configured to be able to rotate around the panel assembly 500.

[0129] The end of the first water-blocking part 341 and the inner circumferential surface of the second water-blocking part 342 can be fitted with the first panel 510 with a clearance to improve the smoothness of the rotation of the knob 300. At the same time, the smaller the clearance, the better. Specifically, it can be set to less than 0.5 mm, for example, 0.2 mm to 0.3 mm, to reduce the possibility of water vapor entering the receiving cavity 301 of the knob 300.

[0130] Optionally, such as Figure 8 , Figure 10 As shown, a reinforcing support 344 can also be provided within the waterproof annular groove 340. The reinforcing support 344 can support and restrict the first panel 510, reducing the possibility of the first panel 510 deforming or denting and entering the waterproof annular groove 340, thus improving the structural stability of the first panel 510. In the configuration where the knob 300 is rotatable around the panel assembly 500, under normal conditions, the first panel 510 and the reinforcing support 344 are in a clearance fit. If the first panel 510 shakes or deforms, the reinforcing support 344 can provide auxiliary support, improving the smoothness of the knob 300's rotation.

[0131] Multiple reinforcing support portions 344 can be provided, and the multiple reinforcing support portions 344 can be arranged circumferentially at intervals in the waterproof annular groove 340. For example, the multiple reinforcing support portions 344 can be arranged at equal intervals.

[0132] A connecting gap can be provided between each reinforcing support 344 and the wall of the waterproof ring groove 340. The connecting gap 345 can connect the two sides of the reinforcing support 344, so that the waterproof ring groove 340 is connected in all directions along its circumference, so that the water vapor entering the waterproof ring groove 340 can flow away along the waterproof ring groove 340, thereby improving the waterproof effect.

[0133] For example, the reinforcing support 344 can be connected to the first water-blocking part 341 and a communication gap 345 is formed between it and the second water-blocking part 342.

[0134] For example, the reinforcing support 344 may also be connected to the second water-blocking part 342, and a communication gap 345 is formed between the support and the second water-blocking part 342.

[0135] For example, the reinforcing support 344 may also be connected to the second connecting part 343, and a communication gap 345 may be formed between it and the first water-blocking part 341 and the second water-blocking part 342 respectively.

[0136] Optionally, the knob 300 and the rotating part 210 can be engaged by a snap-fit ​​component (for ease of description, this snap-fit ​​component is defined as the first snap-fit ​​component 211). The knob 300 is directly connected to the encoder 200 through the first snap-fit ​​component 211, which ensures the overall appearance of the display and control device 10 while allowing control information to be input to the main control component through the knob 300.

[0137] During the rotation of the knob 300, the first panel 510 can be fixed. Since the first panel 510 does not rotate with the knob 300, the seal between the first panel 510 and the knob 300 is crucial. In this embodiment, the waterproof annular groove 340 of the first panel 510 and the knob 300 provides a good waterproof effect. Compared with sealing structures such as sealing rings, the waterproof structure between the first panel 510 and the knob 300 in this embodiment can reduce the frictional resistance of the knob 300 relative to the first panel 510 during rotation, improve the smoothness of the knob 300's rotation, and enhance the user experience.

[0138] Alternatively, in some embodiments, such as Figure 3 , Figures 8 to 10 As shown, the main body ring 310 has an annular portion 311 at one end facing the mounting body 100. Along the radial direction of the main body ring 310, the annular portion 311 is located inside the main body ring 310. The annular portion 311 is arranged around the outer side of the rotating portion 210 and is connected to the rotating portion 210. The rotating portion 210 is sleeved on the outer periphery of the fixed portion 220 and rotates with the fixed portion 220.

[0139] For example, such as Figure 3 and Figure 9As shown, the annular portion 311 includes a first annular portion 3111 and a second annular portion 3112. The second annular portion 3112 is connected between the main body ring 310 and the first annular portion 3111. The first annular portion 3111 protrudes relative to the second annular portion 3112 in a direction away from the panel assembly 500. The first annular portion 3111 and the rotating portion 210 are engaged by the first engaging member 211.

[0140] The first ring portion 3111 and the second ring portion 3112 can be an integral structure, and the annular portion 311 and the main ring 310 can be an integral structure. By setting the annular portion 311, it is convenient to connect the knob 300 and the rotating portion 210 of the encoder 200. The rotating portion 210 is sleeved on the outside of the fixed portion 220. The rotating portion 210 can avoid the setting space of the fixed portion 220, so that the fixed member 600 can be at least partially built into the receiving cavity 301 inside the knob 300. While ensuring the integrity and aesthetics of the overall appearance of the knob 300, it improves the compactness of the component arrangement and the space utilization rate.

[0141] The first snap-fit ​​component 211 can keep the annular portion 311 of the knob 300 and the rotating portion 210 of the encoder 200 relatively fixed at least in the circumferential direction, so as to drive the rotating portion 210 to rotate synchronously by acting on the knob 300.

[0142] Optionally, in some implementations, the first engaging component 211 may include a first latch 212 and a first slot 312. The annular portion 311 is provided with one of the first latch 212 and the first slot 312, and the rotating portion 210 of the encoder 200 is provided with the other of the first latch 212 and the first slot 312. The first latch 212 and the first slot 312 engage in a latching action. Multiple first slots 312 and first latches 212 may be provided in a one-to-one correspondence.

[0143] For example, such as Figure 2 , Figures 6 to 8 , Figure 10 As shown, the inner circumferential surface of the annular portion 311 is provided with three first slots 312 at equal intervals along the circumferential direction, and the outer circumferential surface of the rotating portion 210 of the encoder 200 is provided with three first buckles 212 at equal intervals along the circumferential direction. Each first buckle 212 is engaged and fixed with each first slot 312 in a one-to-one correspondence.

[0144] Optionally, in some embodiments, the display and control device 10 further includes a fixing member 600, and the fixing part 220 is connected to the mounting body 100 through the fixing member 600.

[0145] The fastener 600 and the mounting body 100 can be detachably connected or non-detachably connected, and the fastener 600 and the fixing part 220 can be detachably connected or non-detachably connected.

[0146] In some embodiments, the fastener 600 may optionally include a base portion 610 and an assembly portion 620 connected to the base portion 610. The base portion 610 is fixedly connected to the mounting body 100, and the assembly portion 620 is located on the side of the base portion 610 away from the mounting body 100 and is connected to the fastener 220.

[0147] The fastener 600 is configured to include a base portion 610 and an assembly portion 620, which improves the ease of assembly between the fastener 220 of the encoder 200 and the mounting body 100.

[0148] The base portion 610 and the mounting body 100 can be connected by means of adhesive, snap-fit, bolts, etc. For example, the mounting body 100 and the base portion 610 can be snapped together and fixed by a third snap-fit ​​component 120, which may include a third buckle 121.

[0149] The assembly part 620 and the base part 610 can be configured as an integral structure. For example, the fastener 600 can be an integrally molded structure such as injection molding, and both the assembly part 620 and the base part 610 can be plastic parts. The assembly part 620 and the fastener 220 can be connected by means of adhesive, snap-fit, bolts, etc.

[0150] Optionally, the assembly part 620 and the fixing part 220 are configured to be snap-fitted together.

[0151] The assembly portion 620 of the fixing member 600 and the fixing portion 220 of the encoder 200 can be engaged by the second snap-fit ​​member 621. The second snap-fit ​​member 621 can keep the assembly portion 620 of the fixing member 600 and the fixing portion 220 of the encoder 200 relatively fixed in the circumferential direction, so that when the knob 300 drives the rotating portion 210 to rotate, the fixing portion 220 of the encoder 200 can remain stationary.

[0152] For example, the second snap-fit ​​component 621 may include a second snap-fit ​​622 and a second slot 221. One of the assembly part 620 and the fixing part 220 is provided with the second snap-fit ​​622, and the other of the assembly part 620 and the fixing part 220 is provided with the second slot 221. The second snap-fit ​​622 and the second slot 221 engage with each other. Multiple second snap-fits 622 and multiple second slots 221 may be provided in a one-to-one correspondence, and the multiple second snap-fits 622 and multiple second slots 221 may be spaced apart along the circumference of the knob component 300.

[0153] Optionally, such as Figure 3 and combined Figure 4 and Figure 6As shown, the second snap-fit ​​component 621 can also keep the assembly portion 620 of the fixing member 600 and the fixing portion 220 of the encoder 200 relatively fixed in the axial direction. That is, the second snap-fit ​​component 621 can fix the encoder 200 and the fixing member 600 in the axial direction to improve the assembly reliability of the display and control device. For example, the second slot 221 has an abutting surface facing away from the fixing member 600, and the second buckle 622 abuts against the abutting surface 2211. Under the pressing action of the second buckle 622 and the abutting surface 2211, the movement of the knob 300 in the axial direction away from the fixing member 600 can be restricted.

[0154] Optionally, such as Figure 3 and Figure 11 As shown, a limiting ring 640 may be provided on the side of the seat portion 610 facing the assembly portion 620. The limiting ring 640 is arranged around the assembly portion 620 and spaced apart from the assembly portion 620. The first ring portion 3111 of the knob 300 and the rotating portion 210 of the encoder 200 may be arranged between the limiting ring 640 and the assembly portion 620. The limiting ring 640 and the assembly portion 620 can limit the knob 300 and the rotating portion 210 in the radial direction, making the knob 300 and the rotating portion 210 less prone to shaking in the radial direction and improving the rotational stability of the knob 300.

[0155] It should be noted that the fixing part 220 may also have a portion disposed between the limiting ring 640 and the assembly part 620. That is, the first ring part 3111 of the knob 300, the rotating part 210 of the encoder 200, and the fixing part 220 may be disposed simultaneously between the limiting ring 640 and the assembly part 620.

[0156] Optionally, in some implementations, a third latch 121 is provided on the mounting body 100, and the third latch 121 abuts against the side of the base portion 610 facing the assembly portion 620, so as to fix the base portion 610 to the mounting body 100. Multiple third latches 121 can be provided, and the multiple third latches 121 are arranged at intervals along the circumference of the base portion 610.

[0157] Optionally, in some implementations, a first positioning component 130 may be provided between the mounting body 100 and the base portion 610. The first positioning component 130 guides the fastener 600 during installation and positions it in place. The first positioning component 130 may include a positioning pin 131 and a positioning hole 611. One of the mounting body 100 and the base portion 610 has the positioning pin 131, and the other has the positioning hole 611. The positioning pin 131 engages with the positioning hole 611 to position the fastener 600. Multiple positioning pins 131 and positioning holes 611 may be provided in a one-to-one correspondence. The arrangement of the multiple positioning pins 131 can be asymmetrical. This arrangement of multiple positioning pins 131 and multiple positioning holes 611 can prevent incorrect assembly of the fastener 600, reducing the possibility of assembly errors.

[0158] Exemplarily, in one specific embodiment, such as Figure 2 , Figure 3 , Figure 4 , Figure 11As shown, the mounting body 100 is integrally provided with three positioning pins 131 and three third buckles 121. The fastener 600 includes an integrally structured base part 610 and assembly part 620. One side of the base part 610 abuts against the mounting body 100, and the other side of the base part 610 is provided with the assembly part 620. The base part 610 is roughly in the shape of an annular plate, and the base part 610 is provided with three positioning holes 611 and three connecting holes 612. Along the circumference of the base portion 610, three positioning pins 131 are arranged at intervals, and three third latches 121 are arranged at intervals, with the positioning pins 131 and third latches 121 staggered. A positioning pin 131 is provided between two adjacent third latches 121, and a third latch 121 is provided between two adjacent positioning pins 131. The positioning pins 131 correspond one-to-one with the positioning holes 611 and are inserted into each other. The three third latches 121 pass through the three connecting holes 612 one-to-one and abut against the side of the base portion 610 facing the assembly portion 620, so that the base portion 610 is snapped and fixed to the mounting body 100. Among them, the base portion 610 may be provided with a first reinforcing part 614 around the connecting hole 612, and the third latches 121 abut against the first reinforcing part 614; the base portion 610 may be provided with a second reinforcing part 615 around the connecting hole 612. The positioning hole 611 is provided with a second buckle 622 on the assembly part 620. The rotating part 210 of the encoder 200 is coaxially arranged with the fixed part 220, and the rotating part 210 is sleeved on the outer periphery of the fixed part 220. The center of the fixed part 220 is provided with a first through hole 230. The inner periphery of the end of the fixed part 220 away from the base part 610 is provided with a second slot 221. The assembly part 620 passes through the first through hole 230, and the second buckle 622 abuts against the second slot 221 so that the encoder 200 is installed on the fixing member 600.

[0159] Alternatively, in some embodiments, such as Figure 3 , Figure 4 , Figure 11 As shown, the base part 610 and the assembly part 620 are provided with interconnected wiring holes 630, and the mounting body 100 is provided with through holes 106. The wiring holes 630 and the through holes 106 are connected, and the wire harnesses connected to the circuit board 400 pass through the wiring holes 630 and the through holes 106.

[0160] Optionally, in some embodiments, the mounting body 100 includes a mounting plate 101 and a receiving portion 102 connected to each other. The mounting plate 101 is provided with a through hole. The receiving portion 102 is installed on one side of the mounting plate 101 and surrounds the through hole. The receiving portion 102 and the through hole together form a mounting groove 103. A second annular groove 110 is provided on the mounting plate 101 and surrounds the mounting groove 103. A fixing member 600 is provided in the mounting groove 103. One end of the main ring 310 is inserted into the mounting groove 103.

[0161] The mounting plate 101 is used to connect with the housing 20. Optionally, the mounting body 100 can be an embedded part of the housing 20, and the mounting plate 101 can be built into the inner side of the outer shell 22 of the housing 20. The side of the mounting plate 101 facing away from the receiving part 102 is used to fix it to the inner wall surface 23 of the outer shell 22 of the housing 20. For example, the mounting plate 101 can be pasted to the inner wall surface 23 of the outer shell 22 with double-sided tape or glue, so that the mounting body 100 is embedded in the wall of the housing 20.

[0162] The mounting plate 101 and the receiving part 102 can be integrally formed. The receiving part 102 protrudes from the mounting plate 101. The receiving part 102 is hollow inside and has an opening. The opening of the receiving part 102 is aligned with and connected to the through hole of the mounting plate 101 to form a mounting groove 103.

[0163] Both the wiring hole 630 and the through hole 106 are connected to the mounting groove 103. For example, the wiring hole 630 and the mounting groove 103 can be coaxially arranged, and the through hole 106 can be provided on the side of the receiving portion 102.

[0164] Optionally, the mounting plate 101 may also be provided with a wiring section 105, which is located on the same side of the mounting plate 101 as the receiving section 102. The wiring section 105 is connected to the receiving section 102, and the wiring section 105 is hollow inside to form a wire passage hole 106.

[0165] It should be noted that after the fixed part 220 and the rotating part 210 are assembled as a whole, they can be engaged in the upper limit of the axial direction. That is to say, after the encoder 200 is assembled, it is a whole component, and the fixed part 220 and the rotating part 210 only retain the degree of freedom of relative rotation. At the same time, through the limiting engagement of the fixed part 220 and the rotating part 210 of the encoder 200, since the rotating part 210 is fixedly connected to the knob 300, the knob 300 can be fixed in the upper limit of the axial direction. Optionally, the axial limiting of the fixing part 220 and the rotating part 210 can also be achieved by mutual limiting after the various components are assembled. For example, the first panel 510, the display panel 520, the circuit board 400, and the fixing part 220 are fixedly connected in sequence. The fixing part 220 is fixedly connected to the mounting body 100 through the fixing member 600. The first panel 510 and the waterproof ring groove 340 (specifically the annular flange 320) of the knob 300 are axially limited. The fixing part 220, the rotating part 210, and the annular part 311 of the encoder 200 are axially limited with the base part 610, so that each component is limited in the axial direction and the display and control device 10 is formed as a whole.

[0166] like Figures 12 to 18 As shown in some embodiments of this application, a freezer is also provided, including a freezer body and a display and control device 10 proposed in this application or any embodiment of this application.

[0167] The freezer body has a cabinet 20, and the cabinet 20 has a first wall 21; the display and control device 10 is mounted on the first wall 21 via a mounting body 100. The knob 300 of the display and control device 10 is at least partially exposed on the outside of the first wall 21 to facilitate turning the knob 300.

[0168] The freezer body includes a main control component, and the wiring harness of the display and control device 10 passes through the wiring section 105 and connects to the main control component of the main appliance body. The display and control device 10 can display the control information of the main control component and input control information to the main control component to control the operation of the freezer body.

[0169] The enclosure 20 may include a top wall, a bottom wall, and a side wall connecting the top wall and the bottom wall. The first wall 21 may be any side wall of the enclosure 20, and the axis of the knob is perpendicular to the first wall 21. The display and control device 10 is disposed on the first wall 21 (i.e., the side wall of the enclosure 20). The second annular groove 110 and the waterproof annular groove 340 are arranged around the horizontal axis in a generally circular manner. Both the second annular groove 110 and the waterproof annular groove 340 extend in a generally vertical plane. The water vapor accumulated in the second annular groove 110 and the waterproof annular groove 340 can flow to the bottom under the action of gravity along the groove walls surrounding their respective annular grooves, and then flow away.

[0170] Optionally, the first wall 21 includes a housing 22, on which a mounting hole 25 is provided. The mounting body 100 is mounted on the inner wall surface 23 of the housing 22, and the knob 300 passes through the mounting hole 25, and the knob 300 at least partially protrudes from the outer wall surface of the housing 22.

[0171] The first wall 21 may only have the outer shell 22, or other functional layers may be added inside the outer shell 22.

[0172] Optionally, in some implementations, the first wall 21 further includes an insulation layer 26, which is located inside the outer shell 22 and covers the mounting body 100.

[0173] During the assembly process, the display and control device 10 can be assembled to the outer shell 22 first, and then the insulation layer 26 can be assembled to the outer shell 22 with the display and control device 10. The insulation layer 26 can be a foam material.

[0174] Optionally, a second positioning component 140 is provided between the mounting body 100 and the first wall 21. The second positioning component 140 is used to position the mounting body 100 at its mounting position and in its mounting direction.

[0175] For example, the second positioning component 140 may include a positioning protrusion 24 and a positioning groove 141. One of the positioning protrusion 24 and the positioning groove 141 is disposed on the mounting body 100, and the other of the positioning protrusion 24 and the positioning groove 141 is disposed on the housing 22. Multiple positioning protrusions 24 and positioning grooves 141 may be configured in a one-to-one correspondence. The multiple positioning protrusions 24 may be configured with different structures to position the mounting body 100 in the mounting position while also providing a foolproof function, reducing the possibility of incorrect installation of the display and control device 10. The opening of the positioning groove 141 faces the housing 22, the back of the positioning groove 141 protrudes relative to the mounting plate 101, and the positioning protrusion 24 protrudes relative to the inner wall surface 23 of the housing 22. During the assembly of the display and control device 10 into the housing 20, the mounting body 100 can be pre-embedded into the housing 22. During the pre-embedding of the mounting body 100 into the housing 22, the positioning groove 141 and the positioning protrusion cooperate for positioning. After the mounting body 100 is installed, the fastener 600, encoder 200, circuit board 400 and panel assembly 500 are then assembled into the mounting body 100.

[0176] like Figure 4 , Figure 5 , Figure 18 As shown, in one embodiment, the outer shell 22 is provided with two positioning protrusions 24, which are spaced apart; the accommodating part 102 is provided with two positioning grooves 141 at intervals along its circumferential edge, and the two positioning grooves 141 have different extension lengths along the circumferential direction of the accommodating part 102. The two positioning grooves 141 are respectively adapted to the two positioning protrusions 24 to position the installation position of the mounting body 100.

[0177] The second positioning component 140 can ensure that the angle of the assembled mounting body 100 meets the preset requirements, reducing the possibility of misalignment of the mounting body 100.

[0178] The above are merely preferred embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A display and control device, characterized in that, include: The knob has an internal receiving cavity; The mounting body is rotatably engaged with the knob. The mounting body is provided with a mounting groove. One end of the knob along its own axial direction is inserted into the mounting groove. The mounting groove is connected to the receiving cavity. An encoder is disposed within the accommodating cavity. The encoder includes a rotating part and a fixed part. The fixed part is fixedly connected to the mounting body. The rotating part is rotatably engaged with the fixed part. The knob is fixedly connected to the rotating part.

2. The display and control device according to claim 1, characterized in that, The mounting body includes an assembly part and a receiving part. The assembly part is arranged around the receiving part along the axial direction of the knob. The receiving part protrudes from the assembly part in a direction away from the knob. The mounting groove is provided in the receiving part.

3. The display and control device according to claim 2, characterized in that, The knob includes a main body ring and an annular flange. The main body ring surrounds and forms the receiving cavity. One end of the main body ring facing the mounting body is inserted into the mounting groove. The annular flange is connected to the outer periphery of the main body ring and is located at the end of the main body ring away from the mounting body. A first mating part is provided on the side of the annular flange facing the mounting body. The assembly part includes a second mating part. The first mating part and the second mating part are mated and configured to be rotatable relative to each other.

4. The display and control device according to claim 3, characterized in that, Along the axial direction of the knob, the first mating part and the second mating part are engaged in a recessed-convex insertion fit.

5. The display and control device according to claim 4, characterized in that, The first mating part includes a first protruding ring portion, and the second mating part is provided with an annular groove, wherein the first protruding ring portion is inserted into the annular groove.

6. The display and control device according to claim 3, characterized in that, The assembly part further includes a mounting plate that surrounds the outer periphery of the second mating part and is used to connect to the housing of the household appliance.

7. The display and control device according to claim 6, characterized in that, Along the circumference of the knob, the second mating portion protrudes relative to the mounting plate in a direction away from the knob.

8. The display and control device according to claim 6, characterized in that, The annular flange is provided with a second protruding ring portion on the side facing the mounting body. The second protruding ring portion surrounds the outer periphery of the first mating portion and is directly opposite to the mounting plate and has a clearance fit.

9. The display and control device according to any one of claims 1-8, characterized in that, The knob is a one-piece molded structural component; And / or, the mounting body is a one-piece molded structural component.

10. The display and control device according to any one of claims 1-8, characterized in that, The display and control device also includes a circuit board, which is disposed in the accommodating cavity and electrically connected to the encoder. The circuit board is fixedly disposed relative to the fixing part. The mounting body is provided with a wire hole, through which the wire harness connected to the circuit board passes out.

11. The display and control device according to claim 10, characterized in that, The display and control device further includes a panel assembly, which is disposed in the accommodating cavity and connected to the circuit board. Along the axial direction of the knob, the panel assembly and the encoder are respectively disposed on both sides of the circuit board.

12. A freezer, characterized in that, include: The freezer body has a cabinet, and the cabinet has a first wall; The display and control device according to any one of claims 1-11, wherein the display and control device is mounted on the first wall.

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