Dustproof and waterproof display panel for household appliances

Abstract

The utility model discloses a dustproof waterproof household electrical apparatus display panel, including panel shell, the top fixed mounting of panel shell has fixed cylinder, the inside of fixed cylinder is provided with the pressing cylinder, the inside fixed mounting of pressing cylinder has the pressing column, the top integral type fixed mounting of pressing cylinder has the pressing board, install rubber sealing ring between pressing board with fixed cylinder, the inside of rubber sealing ring has established the air cavity, the outer periphery fixed mounting of pressing board has the protection cylinder, the bottom integral type fixed mounting of pressing cylinder has the fixed ring, install reset spring between fixed ring with fixed cylinder, the inside installation of panel shell has panel circuit board and panel display screen. The utility model discloses through installing the rubber sealing ring with air cavity between pressing board and fixed cylinder, and then the gap between fixed cylinder and pressing cylinder is blocked, avoids water and dust and enters to the inside between fixed cylinder and pressing cylinder and panel shell.

Description

Technical Field

[0001] This utility model relates to the field of display panel technology, specifically to a dustproof and waterproof display panel for household appliances. Background Technology

[0002] Home appliances and display panels form a close human-computer interaction interface through integrated design. As the core carrier of information display and function control, the display panel directly affects the operating experience and intelligence level of home appliances.

[0003] Chinese Patent Publication No. CN216378794U discloses a novel washing machine button panel in the field of washing machine button panel technology. The panel assembly includes a structural frame, with a functional panel on the top of the frame. The top surface of the functional panel features function keys, a display screen, and a switch. A spring-loaded latch is located on the top of the functional panel. A protective component is movably hinged to one end of the structural frame. The protective component includes a protective cover with a locking tongue near the spring-loaded latch and an evaporation hole at one end. This invention provides dust and water protection for the functional panel with the protective cover. The evaporation hole allows airflow between the functional panel and the outside environment, facilitating the evaporation of moisture from the panel surface. A light trough is used to install an incandescent lamp for illumination. This device, by incorporating the protective component, enhances the protection of the functional panel, preventing dust and water accumulation and reducing the risk of function key malfunction.

[0004] The aforementioned patent protects the functional panel by setting a protective cover. However, the protective cover needs to be opened during use, and there are gaps between the buttons. During this process, water and dust can enter the circuit board through the gaps, and water and dust can block the gaps, causing the buttons to stick. Therefore, we propose a dustproof and waterproof home appliance display panel. Utility Model Content

[0005] The purpose of this utility model is to provide a dustproof and waterproof display panel for home appliances, in order to solve the problem mentioned in the above-mentioned patent in the background art that protects the functional panel by setting a protective cover, but the protective cover needs to be opened during use. However, there are gaps between the buttons, and water and dust can enter the circuit board through the gaps, and water and dust can block the gaps, causing the buttons to stick.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dustproof and waterproof home appliance display panel, comprising:

[0007] The panel housing has a fixed cylinder on its top, a pressing cylinder inside the fixed cylinder, a pressing column inside the pressing cylinder, a pressing plate integrally fixed on the top of the pressing cylinder, a rubber sealing ring between the pressing plate and the fixed cylinder, an air cavity inside the rubber sealing ring, a protective cylinder fixed on the outer periphery of the pressing plate, a fixing ring integrally fixed on the bottom of the pressing cylinder, a return spring between the fixing ring and the fixed cylinder, a panel circuit board and a panel display screen inside the panel housing, and push-button switches corresponding to the pressing columns installed on the top of the panel circuit board.

[0008] In a preferred embodiment of the dustproof and waterproof home appliance display panel of this utility model, the diameter of the pressing cylinder matches the diameter of the inside of the fixed cylinder, and the pressing cylinder moves inside the fixed cylinder.

[0009] In a preferred embodiment of the dustproof and waterproof home appliance display panel of this utility model, the rubber sealing ring is fixedly connected to the pressing plate and the rubber sealing ring is fixedly connected to the fixing cylinder.

[0010] In a preferred embodiment of the dustproof and waterproof home appliance display panel of this utility model, the pressing plate is fixedly connected to the protective cylinder, and the inner diameter of the protective cylinder is larger than the diameter of the fixed cylinder.

[0011] In a preferred embodiment of the dustproof and waterproof home appliance display panel of this utility model, the fixing ring is elastically connected to the fixing cylinder through the reset spring.

[0012] As a preferred embodiment of the dustproof and waterproof home appliance display panel of this utility model, the fixing cylinder is further provided with:

[0013] A limiting slide groove is formed on both sides of the inner wall of the fixed cylinder. A limiting slider is movably installed inside the limiting slide groove. The limiting slider is fixedly connected to the pressing cylinder. The shape and size of the limiting slider partially match the shape and size inside the limiting slide groove.

[0014] Compared with the prior art, this utility model provides a dustproof and waterproof display panel for home appliances, which has the following beneficial effects:

[0015] This invention uses a rubber sealing ring with an air cavity installed between the pressing plate and the fixed cylinder to block the gap between the fixed cylinder and the pressing cylinder, preventing water and dust from entering the space between the fixed cylinder and the pressing cylinder, as well as the interior of the panel housing. This not only provides waterproofing and dustproofing, but also prevents dust from accumulating in the gaps of the buttons, which could lead to button jamming or poor contact. At the same time, the rubber sealing ring is deformed by being pressed in conjunction with the movement of the pressing cylinder, which greatly extends the service life of the rubber sealing ring compared to the traditional friction method. Attached Figure Description

[0016] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Fig. 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0018] Fig. 3 This is a schematic diagram of the connection structure between the pressing plate and the fixing cylinder of this utility model.

[0019] In the diagram: 1. Panel housing; 2. Press plate; 3. Fixing cylinder; 4. Protective cylinder; 5. Panel display screen; 6. Pressing cylinder; 7. Pressing column; 8. Panel circuit board; 9. Return spring; 10. Button switch; 11. Fixing ring; 12. Rubber sealing ring; 13. Air chamber; 14. Limiting slider; 15. Limiting groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figs. 1-3 A dustproof and waterproof home appliance display panel includes a panel housing 1, a fixing cylinder 3 fixedly installed on the top of the panel housing 1, a pressing cylinder 6 passing through the inside of the fixing cylinder 3, a pressing post 7 fixedly installed inside the pressing cylinder 6, a pressing plate 2 integrally fixedly installed on the top of the pressing cylinder 6, a rubber sealing ring 12 installed between the pressing plate 2 and the fixing cylinder 3, an air cavity 13 opened inside the rubber sealing ring 12, a protective cylinder 4 fixedly installed on the outer periphery of the pressing plate 2, a fixing ring 11 integrally fixedly installed on the bottom of the pressing cylinder 6, a return spring 9 installed between the fixing ring 11 and the fixing cylinder 3, a panel circuit board 8 and a panel display screen 5 installed inside the panel housing 1, and a push-button switch 10 corresponding to the pressing post 7 installed on the top of the panel circuit board 8.

[0022] In this embodiment: by installing a rubber sealing ring 12 with an air cavity 13 between the pressing plate 2 and the fixed cylinder 3, the gap between the fixed cylinder 3 and the pressing cylinder 6 is blocked, preventing water and dust from entering the space between the fixed cylinder 3 and the pressing cylinder 6 and the interior of the panel housing 1. This not only prevents water and dust from entering, but also prevents dust from accumulating in the gaps of the buttons, which could lead to button jamming or poor contact. At the same time, the rubber sealing ring 12 moves in conjunction with the pressing cylinder 6 by being pressed and deformed, which can greatly extend the service life of the rubber sealing ring 12 compared to the traditional friction method.

[0023] Furthermore:

[0024] In an optional embodiment, the diameter of the pressing cylinder 6 matches the diameter of the inside of the fixed cylinder 3, allowing the pressing cylinder 6 to move inside the fixed cylinder 3.

[0025] In this implementation scheme: when the pressing cylinder 6 moves inside the fixed cylinder 3, it can drive the pressing column 7 to move downward to press the button switch 10.

[0026] Furthermore:

[0027] In an optional embodiment, the rubber sealing ring 12 is fixedly connected to the pressing plate 2 and the rubber sealing ring 12 is fixedly connected to the fixing cylinder 3.

[0028] In this implementation scheme, the fixed connection method ensures the airtightness of the connection between the rubber sealing ring 12 and the pressing plate 2 and the fixed cylinder 3, so that the rubber sealing ring 12 will not separate from the pressing plate 2 and the fixed cylinder 3 no matter how it is deformed.

[0029] Furthermore:

[0030] In an optional embodiment, the pressing plate 2 is fixedly connected to the protective cylinder 4, and the inner diameter of the protective cylinder 4 is larger than the diameter of the fixed cylinder 3.

[0031] In this implementation scheme: the protective cylinder 4 moves upward with the pressing plate 2, which protects the rubber sealing ring 12 and prevents the rubber sealing ring 12 from being exposed and damaged by external objects.

[0032] Furthermore:

[0033] In an optional embodiment, the retaining ring 11 is elastically connected to the retaining cylinder 3 via a return spring 9.

[0034] In this implementation scheme: when the pressing plate 2 is released, the return spring 9 pulls the fixing ring 11 upward by its own elastic force, thereby driving the pressing cylinder 6 to move upward inside the fixing cylinder 3 back to its original position.

[0035] Furthermore:

[0036] In an optional embodiment, the fixing cylinder 3 is further provided with:

[0037] The limiting slide groove 15 is formed on both sides of the inner wall of the fixed cylinder 3. The limiting slide groove 15 is movably installed with a limiting slider 14. The limiting slider 14 is fixedly connected to the pressing cylinder 6. The shape and size of the limiting slider 14 partially match the shape and size of the inside of the limiting slide groove 15.

[0038] In this implementation scheme: when the limiting slider 14 moves inside the limiting groove 15, it restricts the travel of the pressing cylinder 6, thus avoiding excessive force on the rubber sealing ring 12 and the button switch 10.

[0039] Working principle: When using this dustproof and waterproof appliance display panel, first press down on the press plate 2, pushing the press cylinder 6 downwards inside the fixed cylinder 3. This causes the press column 7 to move downwards and press against the corresponding button switch 10 above the panel circuit board 8, thus adjusting the appliance. During this process, because the rubber sealing ring 12 has an air cavity 13 inside, the rubber sealing ring 12 can deform, ensuring the seal between the press cylinder 6 and the fixed cylinder 3 when the press cylinder 6 moves. Secondly, the limit slider 14 moves inside the limit groove 15, limiting the travel of the press cylinder 6 and avoiding excessive force on the rubber sealing ring 12 and the button switch 10. This completes one button adjustment. Then, release the press plate 2 to resume operation. The spring 9 pulls the fixed ring 11 upward by its own elastic force, which in turn drives the pressing cylinder 6 to move upward inside the fixed cylinder 3 back to its original position. The adjusted data is displayed on the panel display screen 5. Then, the protective cylinder 4 moves upward with the pressing plate 2 to protect the rubber sealing ring 12 and prevent it from being exposed and damaged. The panel housing 1, the panel display screen 5 (model: TFT-LCD), the panel circuit board 8 (model: STM32F103), and the button switch 10 (model: D2F-FL-N) are all existing technologies. The display panel they constitute is also existing technology. You can refer to the existing home appliance control panel. This is the working principle of the dustproof and waterproof home appliance display panel.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dustproof and waterproof display panel for household appliances, characterized in that, include: A panel housing (1) is provided. A fixed cylinder (3) is fixedly installed on the top of the panel housing (1). A pressing cylinder (6) is installed inside the fixed cylinder (3). A pressing column (7) is fixedly installed inside the pressing cylinder (6). A pressing plate (2) is integrally fixedly installed on the top of the pressing cylinder (6). A rubber sealing ring (12) is installed between the pressing plate (2) and the fixed cylinder (3). An air cavity (13) is opened inside the rubber sealing ring (12). A protective cylinder (4) is fixedly installed on the outer periphery of the pressing plate (2). A fixing ring (11) is integrally fixedly installed on the bottom of the pressing cylinder (6). A reset spring (9) is installed between the fixing ring (11) and the fixed cylinder (3). A panel circuit board (8) and a panel display screen (5) are installed inside the panel housing (1). A button switch (10) corresponding to the pressing column (7) is installed on the top of the panel circuit board (8).

2. The dustproof and waterproof appliance display panel according to claim 1, characterized in that, The diameter of the pressing cylinder (6) matches the diameter of the inside of the fixed cylinder (3), and the pressing cylinder (6) moves inside the fixed cylinder (3).

3. A dustproof and waterproof appliance display panel according to claim 1, characterized in that, The rubber sealing ring (12) is fixedly connected to the pressing plate (2), and the rubber sealing ring (12) is fixedly connected to the fixing cylinder (3).

4. A dustproof and waterproof appliance display panel according to claim 1, characterized in that, The pressing plate (2) is fixedly connected to the protective cylinder (4), and the inner diameter of the protective cylinder (4) is larger than the diameter of the fixed cylinder (3).

5. A dustproof and waterproof appliance display panel according to claim 1, characterized in that, The fixed ring (11) is elastically connected to the fixed cylinder (3) through the return spring (9).

6. A dustproof and waterproof appliance display panel according to claim 1, characterized in that, The fixed cylinder (3) is also provided with: A limiting groove (15) is provided on both sides of the inner wall of the fixed cylinder (3). A limiting slider (14) is movably installed inside the limiting groove (15). The limiting slider (14) is fixedly connected to the pressing cylinder (6). The shape and size of the limiting slider (14) partially match the shape and size inside the limiting groove (15).

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