A waterproof rotary knob display device and display panel

Abstract

The utility model provides a waterproof knob display device and display panel, knob display device includes: Control circuit board, encoder is set on control circuit board, rotating assembly includes stator support and rotation support, stator support and rotation support are connected encoder respectively, and rotation support is used for driving encoder rotation, display component sets up on stator support, including waterproof backplate, display screen and outer panel, the middle part of waterproof backplate forms waterproof cavity, and is equipped with wire hole in waterproof cavity, the back of display screen is equipped with connecting wire, and display screen is embedded in waterproof cavity, and connecting wire passes through wire hole and is connected to control circuit board, and outer panel is sealedly arranged on waterproof backplate and display screen, in this application, through using waterproof backplate, display screen and outer panel sealed connection has formed the display component of high integration, can simplify the positioning and installation of display screen, and can realize the sealed isolation to display screen simultaneously, improves its waterproof performance.

Description

Technical Field

[0001] This application relates to the field of household appliances, and in particular to a waterproof rotary knob display device and display panel. Background Technology

[0002] In the field of home appliances, such as washing machines, microwave ovens, and ovens, the display area and control interaction are all located on the control panel, and the use of knob components with display functions is becoming increasingly widespread. However, existing displays are usually relatively independent, requiring multiple components to work together for positioning and fixation, resulting in complex structures and difficult assembly. In addition, in existing technologies, because the displays are mostly in open space, they are prone to water ingress or condensation in many applications, which can affect the circuitry and display. Therefore, it is necessary to improve the waterproof performance of knob components.

[0003] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this application and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this application. Utility Model Content

[0004] To address all or part of the problems in the prior art, this invention provides a rotary display device with excellent waterproof performance and a display panel with the device, thereby solving the problems of inconvenient screen fixing and installation, and susceptibility to moisture in existing rotary display devices.

[0005] To achieve the above objectives, in a first aspect, this utility model provides a waterproof rotary knob display device, comprising: Control circuit board; An encoder is mounted on the control circuit board; A rotating assembly includes a stator support and a rotating support; the stator support and the rotating support are respectively connected to the encoder, and the rotating support is used to drive the encoder to rotate; The display assembly, mounted on the stator support, includes a waterproof backplate, a display screen, and an outer panel; A waterproof cavity is formed in the middle of the waterproof back plate, and a cable routing hole is provided in the waterproof cavity; The back of the display screen is provided with a connecting cable, the display screen is embedded in the waterproof cavity, and the connecting cable passes through the cable hole to connect to the control circuit board; The outer panel is sealed onto the waterproof back panel and the display screen.

[0006] In this application, a highly integrated display assembly is formed by sealing the waterproof backplate, display screen and outer panel, which simplifies the positioning and installation of the display screen, and at the same time achieves the sealing and isolation of the display screen, thereby improving its waterproof performance.

[0007] The encoder includes a fixed part and a rotating part located outside the fixed part. The rotating part and the fixed part are rotatable relative to each other. The lower end of the fixed part is connected to the control circuit board. The stator bracket is connected to the fixed part, and the rotating bracket is sleeved on the outside of the stator bracket and connected to the rotating part. The rotating assembly has a compact structure and can also be adapted to existing angular displacement encoders.

[0008] The outer panel is sealed to the waterproof back panel and the display screen by a sealant layer. No extra space is needed for the snap-fit ​​structure; the overall assembly is compact, fits snugly, and provides excellent waterproofing.

[0009] A sealing surface is also formed on the waterproof back panel, which surrounds the waterproof cavity and is not lower than the surface of the display screen. A sealant layer is applied to the sealing surface to bond the waterproof back panel and the outer panel. The assembly has a compact structure, a tight fit, and excellent waterproof performance.

[0010] A sealant is applied to the back of the cable hole to further reduce moisture intrusion.

[0011] The waterproof backplate is snapped onto the stator bracket. The snap-fit ​​structure facilitates installation and disassembly, is simple in design, and is convenient for subsequent maintenance and replacement.

[0012] The rotating bracket is equipped with a knob outer ring. It provides an aesthetically pleasing and comfortable grip surface and can be used to set various markings.

[0013] The encoder and the rotating assembly have mutually mating through-hole structures in their middle portions; the connecting cable passes through the cable hole and then connects to the control circuit board through the through-hole structure. The cable hole and through-hole mechanism enable electrical connection to the control circuit board without interfering with the rotation function.

[0014] The fixing part is snapped into the stator bracket; the rotating part is snapped into the rotating bracket. The snap-fit ​​structure facilitates installation and disassembly, is simple in structure, and is convenient for subsequent maintenance and replacement.

[0015] On the other hand, this utility model also provides a display panel, comprising: The housing and a waterproof rotary display device as described in any one of the first aspects; The waterproof knob display device is installed in the housing.

[0016] Compared with the prior art, the main beneficial effects of this utility model are: 1) It forms a highly integrated display component, which simplifies the positioning and installation of the display screen; 2) It can achieve sealing and isolation of the display screen, improving its waterproof performance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a knob display device provided in this embodiment.

[0019] Figure 2 This is a cross-sectional view of a knob display device provided in this embodiment.

[0020] Figure 3 This is an exploded view of a knob display device provided in this embodiment.

[0021] Figure 4 This is a schematic diagram of the structure of an encoder provided in this embodiment.

[0022] Figure 5 This is a structural schematic diagram of the waterproof backplate provided in this embodiment.

[0023] Figure 6 This is a schematic diagram of the structure of the display screen provided in this embodiment.

[0024] Figure 7 This embodiment provides a schematic diagram of the front structure of a display panel.

[0025] Figure 8 This embodiment provides a schematic diagram of the back structure of a display panel.

[0026] Figure label: 100. Waterproof rotary knob display device; 110. Housing; 120. Display module; 1. Control circuit board; 2. Encoder; 20. Fixing part; 21. Rotating part; 3. Knob bracket; 4. Stator bracket; 41. Fixing claw; 5. Waterproof back plate; 51. Waterproof cavity; 52. Cable routing hole; 53. Sealing surface; 6. Display screen; 61. Connecting cable; 7. Knob outer ring; 8. Sealing layer; 9. Outer panel. Detailed Implementation

[0027] The foregoing and other technical contents, features, and effects of this utility model will be clearly presented in the following detailed description of the preferred embodiments with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front, or back, are only for reference to the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the scope of this utility model.

[0028] Example 1 In this embodiment, a waterproof rotary knob display device is first provided, combined with Figures 1 to 6 As shown, the waterproof knob display device 100 includes: a control circuit board 1; an encoder 2, mounted on the control circuit board 1; a rotating assembly, including a stator support 4 and a rotating support 3; the stator support 4 and the rotating support 3 are respectively connected to the encoder 2, and the rotating support 3 is used to drive the encoder 2 to rotate; a display assembly is mounted on the stator support 4, and the display assembly includes a waterproof back plate 5, a display screen 6, and an outer panel 9; a waterproof cavity 51 is formed in the middle of the waterproof back plate 5, and a cable routing hole 52 is provided in the waterproof cavity 51; a connecting cable 61 is provided on the back of the display screen 6, the display screen 6 is embedded in the waterproof cavity 51, and the connecting cable 61 passes through the cable routing hole 52 and connects to the control circuit board 1; the outer panel 9 is sealed on the waterproof back plate 5 and the display screen 6.

[0029] In this application, a highly integrated display component is formed by sealing the waterproof backplate 5, the display screen 6 and the outer panel 9 together. This greatly simplifies the positioning and installation of the display screen 6, and at the same time achieves the sealing and isolation of the display screen 6, thereby improving its waterproof performance.

[0030] refer to Figures 1 to 3 In this embodiment, the control circuit board 1 is located at the bottom of the waterproof knob display device 100. The control circuit board 1 is mainly used to electrically connect with the display screen 6 and to control the display of the display screen 6.

[0031] Figure 4 The specific structure of encoder 2 is shown, which is a conventional angular displacement encoder. (Refer to reference...) Figures 2 to 4 In this embodiment, the encoder 2 is fixed on the upper surface of the control circuit board 1. It includes a fixed part 20 and a rotating part 21 located outside the fixed part. The rotating part 21 can rotate relative to the fixed part 20 in the middle, and the angular displacement of the rotating part 21 can be converted into an electrical signal to realize the control of different functions.

[0032] Specifically, the fixing part 20 is a stepped annular structure, that is, the bottom is a large-diameter annular structure, and a central annular structure protrudes upward from the middle of the bottom annular structure; the rotating part 21 is also an annular structure, which is sleeved on the outside of the central annular structure of the fixing part 20 and can rotate around the fixing part 20. In this embodiment, the lower end of the fixing part 20 is fixedly connected to the upper surface of the control circuit board 1; a slot is provided on the inner wall of the fixing part 20, and a corresponding snap-fit ​​structure is provided on the lower part of the stator bracket 3, which can snap the stator bracket 3 to the inner wall of the fixing part 2 to achieve connection; similarly, a slot is also provided on the outer wall of the rotating part 21, and a corresponding buckle is provided on the lower side of the rotating bracket 3 to achieve connection between the two.

[0033] Through holes are formed in the middle of both the encoder 2 and the rotating assembly. When the encoder 2 and the rotating assembly are assembled, the corresponding through holes will cooperate with each other to form a through hole structure that connects the display assembly and the control circuit board 1. This through hole structure allows the connecting cable 61 to pass through the cable hole 52 and then connect to the control circuit board 1.

[0034] It should be understood that corresponding fixing structures can be provided on components such as encoder 2, rotating assembly, and control circuit board 1 to ensure secure fixation. For example, after making fixing holes, encoder 2 and rotating assembly can be fixed with bolts, or snap-fit ​​or slot-fit can be used for fixing, or it can be fixed by heat fusion or adhesive bonding, which will not be elaborated here. In this embodiment, threaded posts are provided on stator bracket 4, and then the rotating assembly and control circuit board 1 can be fixed with screws (this structure can also further fix the waterproof knob display device 100 to the appliance housing to be installed); and encoder 2 is snapped onto control circuit board 1 by snap-fit ​​provided at the lower end of fixing part 20.

[0035] In this embodiment, a fixing claw 41 is also provided at the lower part of the stator bracket 4. When the rotating component and the control circuit board 1 are assembled in place, the fixing claw 41 can extend through the opening on the control circuit board 1 to the other side of the control circuit board 1. The fixing claw 41 can be used to fix the entire waterproof knob display device 100 to the other components (e.g., the display panel or control panel of some home appliances).

[0036] refer to Figure 5 and Figure 6As shown, a waterproof cavity 51 is formed in the middle of the waterproof backplate 5, and a cable routing hole 52 is provided in the waterproof cavity 51. The shape and size of the waterproof cavity 51 correspond to the display screen 6, so the display screen 6 can be tightly embedded in the waterproof cavity 51. The cable routing hole 52 allows the connecting cable 61 on the back of the display screen 6 to pass through and connect to the control circuit board 1. In order to achieve a good waterproof effect by sealing the display screen 6, sealant can also be applied to the back of the cable routing hole 61 to prevent moisture from entering from the bottom. Similarly, in order to ensure the seal at the top, a sealing surface 53 is also formed on the waterproof backplate 5. The sealing surface 53 is arranged around the waterproof cavity 51 and is not lower than the surface of the display screen 6. Then, by applying a sealant layer 8 to the sealing surface 53, the outer panel 9 is bonded to the waterproof backplate 5, thereby achieving a seal for the display screen 6.

[0037] In this embodiment, the display screen 6 is a TFT display screen; in this embodiment, the outer panel 9 is a transparent glass panel, which can provide protection for the display screen 6.

[0038] Example 2 Combination Figure 7 and Figure 8 As shown, in this embodiment, a display panel is also provided, including a housing and a waterproof knob display device 100 as described in Embodiment 1; wherein, a mounting groove is formed on the housing 110, and the waterproof knob display device 100 is installed in the mounting groove on the housing 110. Specifically, a slot and an opening are formed in the mounting groove, and the waterproof knob display device 100 can be engaged in the slot by fixing claws 41, and fixed by screws passing through the opening and screwed into the threaded post on the stator bracket 4.

[0039] In other embodiments, a display module 120 is also installed at the bottom of the housing 110.

[0040] It is understandable that the aforementioned display panel can be installed on some home appliances as a display panel, such as washing machines and microwave ovens.

[0041] The common English terms or letters used in this utility model for the purpose of clear description are for illustrative purposes only and are not intended to be limiting or specific. They should not be used to limit the scope of protection of this application based on their possible Chinese translations or specific letters.

[0042] It should also be noted that in this article, relational terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A waterproof rotary knob display device, characterized in that, include: Control circuit board; An encoder is mounted on the control circuit board; A rotating assembly includes a stator support and a rotating support; the stator support and the rotating support are respectively connected to the encoder, and the rotating support is used to drive the encoder to rotate; The display assembly, mounted on the stator support, includes a waterproof backplate, a display screen, and an outer panel; A waterproof cavity is formed in the middle of the waterproof back plate, and a cable routing hole is provided in the waterproof cavity; The back of the display screen is provided with a connecting cable, the display screen is embedded in the waterproof cavity, and the connecting cable passes through the cable hole to connect to the control circuit board; The outer panel is sealed onto the waterproof back panel and the display screen.

2. The waterproof knob display device according to claim 1, characterized in that, The encoder includes a fixed part and a rotating part located outside the fixed part. The rotating part and the fixed part can rotate relative to each other. The lower end of the fixed part is connected to the control circuit board. The stator support is connected to the fixed part, and the rotating support is sleeved on the outside of the stator support and connected to the rotating part.

3. The waterproof rotary knob display device according to claim 1, characterized in that, The outer panel is sealed onto the waterproof back panel and the display screen by a sealant layer.

4. A waterproof rotary knob display device according to claim 3, characterized in that, A sealing surface is also formed on the waterproof back plate, the sealing surface is arranged around the waterproof cavity, and the sealing surface is not lower than the surface of the display screen; The sealant layer is disposed on the sealing surface and is used to bond the waterproof back panel and the outer panel.

5. A waterproof rotary knob display device according to claim 4, characterized in that, A sealant is applied to the back of the cable hole.

6. A waterproof rotary knob display device according to claim 1, characterized in that, The waterproof backplate is snapped onto the stator bracket.

7. A waterproof rotary knob display device according to claim 1, characterized in that, The rotating bracket is provided with a knob outer ring.

8. A waterproof rotary knob display device according to claim 2, characterized in that, The encoder and the rotating assembly have mutually cooperating through-hole structures formed in their middle portions; After passing through the cable hole, the connecting cable is connected to the control circuit board through the through-hole structure.

9. A waterproof rotary knob display device according to claim 2, characterized in that, The fixing part is engaged with the stator bracket; the rotating part is engaged with the rotating bracket.

10. A display panel, characterized in that, include: The housing and a waterproof rotary knob display device as described in any one of claims 1-8; The waterproof knob display device is installed in the housing.

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