A display panel for household appliances with good fixing effect and anti-deviation

Abstract

The utility model discloses a fixed effect good anti -migration's display panel for home appliance, including acrylic panel, acrylic panel front is provided with function display area, the back of acrylic panel edge place integrally is provided with the support convex edge, the support convex edge inwall integrally is provided with the location step, the support convex edge surrounds and forms the installation groove of accommodating circuit board formula capacitor touch switch PCB substrate, the back of acrylic panel is located in the installation groove integrally and is provided with the function area reinforcing rib, the function area reinforcing rib its surrounds and forms the key thin area, the function area reinforcing rib radiates integrally and is connected with the support muscle outward, support muscle end and support convex edge inwall are connected, through the cooperation of support convex edge, location step and installation groove, has realized the accurate location to PCB substrate, has reduced the PCB substrate displacement risk that the external force vibration or panel deformation led to significantly, avoided the signal crosstalk and false trigger problem that the key touch position misregistration caused.

Description

Technical Field

[0001] This utility model belongs to the field of home appliance display panel technology, specifically relating to a home appliance display panel with good fixing effect and anti-displacement. Background Technology

[0002] Currently, most display panels for home appliances use acrylic sheets as the substrate, and the push-button switches installed on the back are mainly based on capacitive touch technology. These include two types: PCB capacitive touch switches and film capacitive touch switches. PCB capacitive touch switches, compared to film capacitive touch switches, have advantages such as mature manufacturing processes, high electrode dimensional accuracy, and strong signal stability, and are widely used in the home appliance industry.

[0003] However, this structure has significant drawbacks in actual installation: 1. The PCB substrate of the circuit board-type capacitive touch switch needs to be fixed to the back of the display panel with adhesive. External vibrations can easily cause lateral or longitudinal shifts. When the distance between two functional touch areas is small, the shift of the PCB substrate will cause misalignment between the functional touch area of ​​the PCB substrate and the preset button touch position on the panel, leading to crosstalk between adjacent button signals, increased false trigger rate, and even functional logic confusion. 2. The single-piece acrylic sheet of the appliance panel itself has low structural strength and is prone to micro-deformation under long-term pressure or temperature and humidity changes. This deformation will change the distance between the electrodes and the panel surface, causing abnormal capacitance field distribution and fluctuations in trigger sensitivity. In severe cases, it can even lead to partial peeling of the adhesive layer from the PCB, further increasing the risk of switch displacement and affecting product reliability.

[0004] Therefore, this utility model proposes a display panel for home appliances with good fixing effect and anti-displacement, which solves the problems of installation displacement and panel deformation, thereby improving the operation accuracy and service life of home appliances. Utility Model Content

[0005] To achieve the above objectives, this utility model provides the following technical solution: a display panel for home appliances with good fixing effect and anti-displacement, comprising an acrylic panel, wherein a functional display area is provided on the front side of the acrylic panel, a supporting protrusion is integrally provided on the edge of the back side of the acrylic panel, a positioning step is integrally provided on the inner wall of the supporting protrusion, the supporting protrusion surrounds to form a mounting groove for accommodating a PCB substrate of a circuit board type capacitive touch switch, a functional area reinforcing rib is integrally provided on the back side of the acrylic panel within the mounting groove, the functional area reinforcing rib surrounds to form a button thin area, a supporting rib is integrally connected to the functional area reinforcing rib radiating outward, and the end of the supporting rib is connected to the inner wall of the supporting protrusion.

[0006] In a preferred embodiment of this invention, the functional display area on the front of the acrylic panel overlaps with the mounting groove area on the back of the acrylic panel.

[0007] As a preferred embodiment of this invention, the shape of the mounting groove matches the outline of the PCB substrate of the circuit board type capacitive touch switch.

[0008] In a preferred embodiment of this invention, the projection of the button thin area coincides with the button touch area of ​​the PCB substrate of the circuit board type capacitive touch switch.

[0009] As a preferred embodiment of this utility model, the supporting convex edge is provided with uniformly distributed weight-reducing grooves.

[0010] As a preferred embodiment of this utility model, the supporting ribs are distributed radially in a fan shape, and the included angle between adjacent supporting ribs is 20-40 degrees.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) By combining the supporting convex edge, positioning step and mounting groove, this utility model achieves precise positioning of the PCB substrate, significantly reduces the risk of PCB substrate displacement caused by external force vibration or panel deformation, avoids signal crosstalk and false triggering caused by misalignment of button touch position, effectively improves the accuracy of home appliance operation, reduces user trouble caused by misoperation, and improves user experience.

[0013] (2) The design of equal stress line distribution for the reinforcing ribs and supporting ribs in the functional areas greatly enhances the structural strength of the acrylic panel, effectively resists micro-deformation caused by long-term pressure, temperature and humidity changes, maintains stable capacitance field distribution, and ensures consistent trigger sensitivity. At the same time, this structural design reduces the possibility of partial peeling between the adhesive layer and the PCB, improves the overall reliability of the display panel, extends the service life of home appliances, and reduces after-sales maintenance costs.

[0014] (3) The optimized thin button area improves the penetration efficiency of capacitive signals, ensuring efficient transmission of touch signals and making home appliances more responsive and accurate to user operations, thus enhancing the overall performance of the product. The design of the internal weight-reducing groove of the supporting convex edge reduces the weight of the panel while ensuring structural strength and fixation, thereby reducing product manufacturing and transportation costs. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a front structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the rear structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the rear structure of this utility model from another angle;

[0019] In the diagram: 1. Acrylic panel; 2. Function display area; 3. Supporting protrusion; 4. Positioning step; 5. Mounting groove; 6. Function area reinforcing rib; 7. Button thin area; 8. Supporting rib; 9. Weight reduction 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] Example

[0022] Please see Figure 1-3 This utility model provides the following technical solution: a display panel for home appliances with good fixing effect and anti-displacement, including an acrylic panel 1, a functional display area 2 is provided on the front of the acrylic panel 1, a supporting protrusion 3 is integrally provided on the back edge of the acrylic panel 1, a positioning step 4 is integrally provided on the inner wall of the supporting protrusion 3, the supporting protrusion 3 surrounds to form a mounting groove 5 for accommodating a circuit board type capacitive touch switch PCB substrate, a functional area reinforcing rib 6 is integrally provided on the back of the acrylic panel 1 within the mounting groove 5, the functional area reinforcing rib 6 surrounds to form a button thin area 7, a supporting rib 8 is integrally connected to the functional area reinforcing rib 6 radiating outward, and the end of the supporting rib 8 is connected to the inner wall of the supporting protrusion 3.

[0023] To ensure that the function display area and the touch operation area of ​​the PCB substrate are accurately aligned, so that when the user operates in the function display area 2, the corresponding touch button can be accurately triggered, thereby improving the accuracy of operation and the user interaction experience, in this embodiment, as a preferred technical solution of this utility model, the function display area 2 on the front of the acrylic panel 1 and the mounting groove 5 on the back of the acrylic panel 1 overlap.

[0024] In order to achieve accurate initial positioning of the PCB substrate of the circuit board type capacitive touch switch, facilitate the quick and accurate installation of the PCB substrate onto the display panel, and enhance the stability of the PCB substrate after installation to prevent it from shifting, in this embodiment, as a preferred technical solution of the present invention, the shape of the mounting groove 5 matches the outline of the PCB substrate of the circuit board type capacitive touch switch.

[0025] In order to maximize the penetration efficiency of capacitive signals, reduce signal transmission loss, and ensure that the button signal can be quickly and accurately received by the PCB substrate when the user touches the button, so as to achieve sensitive response of touch operation, in this embodiment, as a preferred technical solution of the present invention, the button thin area 7 and the button touch area of ​​the PCB substrate of the circuit board capacitive touch switch are projected to overlap.

[0026] In order to reduce the weight of the display panel, reduce material costs and transportation energy consumption, and make the product more competitive in the market, without affecting the physical limiting effect of the supporting protrusion 3 on the PCB substrate and the overall structural strength of the panel, in this embodiment, as a preferred technical solution of the present invention, the supporting protrusion 3 is provided with uniformly distributed weight-reducing grooves 9.

[0027] In order to make the functional area reinforcing ribs 6 and supporting ribs 8 distributed along the stress lines, more efficiently disperse the impact energy of point pressing, reduce local stress concentration in the panel, enhance the structural stability of the panel, and resist micro-deformation caused by long-term pressing or temperature and humidity changes, in this embodiment, as a preferred technical solution of the present invention, the supporting ribs 8 are distributed in a fan-shaped radial pattern, and the included angle between adjacent supporting ribs 8 is 20-40 degrees.

[0028] In summary, with the help of the above-mentioned technical solution of this utility model, the functional display area 2 on the front of the acrylic panel 1 is used to present operation prompts and other information to meet user interaction needs.

[0029] To prevent PCB substrate misalignment, the mounting groove 5 formed by the supporting protrusion 3 provides mounting space for the PCB substrate of the circuit board-type capacitive touch switch. The shape of the mounting groove 5 matches the contour of the PCB substrate, ensuring initial positioning. The top wall of the positioning step 4 fits tightly with the edge of the PCB substrate. When the PCB substrate is fixed to the positioning step 4 by adhesive, the positioning step 4 restricts the lateral and longitudinal movement of the PCB substrate from the side. Even if subjected to external vibration or instantaneous deformation when the panel is pressed, the substrate can be accurately locked, effectively avoiding the problem of misalignment between the functional touch area and the preset button touch position on the panel due to misalignment, and preventing crosstalk between adjacent button signals, false triggering, and functional logic confusion.

[0030] To address panel deformation, the functional area reinforcing ribs 6 and supporting ribs 8 are distributed along the same stress lines, forming efficient support. When the panel is subjected to prolonged pressure or slight deformation due to temperature and humidity changes, the functional area reinforcing ribs 6 and supporting ribs 8 can disperse and transfer the impact energy during point pressing, reducing local stress concentration and maintaining a stable distance between the electrodes and the panel surface. Simultaneously, the ends of the supporting ribs 8 are connected to the inner wall of the supporting protrusion 3, further enhancing the stability of the entire panel structure and reducing the risk of partial peeling of the adhesive layer from the PCB board due to panel deformation.

[0031] Furthermore, the design of the thin button area 7 is to ensure the transmission efficiency of capacitive signals. This area coincides with the button touch area of ​​the PCB substrate, reducing the obstruction of capacitive signals through the panel without affecting the structural strength of the panel. This ensures that the button signals can be accurately and quickly transmitted to the PCB substrate when the user touches the panel, achieving precise control. Meanwhile, the weight-reducing grooves 9 evenly distributed inside the supporting protrusion 3 reduce the weight of the panel without weakening the physical restraint of the protrusion on the PCB substrate or the overall support performance of the panel, thereby reducing material costs and transportation energy consumption.

[0032] Finally, it should be noted that, in this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A display panel for household appliances with good fixing effect and anti-displacement, comprising an acrylic panel (1), wherein the front of the acrylic panel (1) is provided with a functional display area (2), characterized in that: The acrylic panel (1) has an integrally formed support protrusion (3) at the back edge. The inner wall of the support protrusion (3) has an integrally formed positioning step (4). The support protrusion (3) surrounds and forms a mounting groove (5) for accommodating a circuit board type capacitive touch switch PCB substrate. The back of the acrylic panel (1) is integrally formed with a functional area reinforcing rib (6) located in the mounting groove (5). The functional area reinforcing rib (6) surrounds and forms a button thin area (7). The functional area reinforcing rib (6) radiates outward and is integrally connected with a support rib (8). The end of the support rib (8) is connected to the inner wall of the support protrusion (3).

2. The display panel for household appliances with good fixing effect and anti-displacement according to claim 1, characterized in that: The functional display area (2) on the front of the acrylic panel (1) overlaps with the mounting groove (5) on the back of the acrylic panel (1).

3. A display panel for home appliances with good fixing effect and anti-displacement according to claim 2, characterized in that: The shape of the mounting groove (5) matches the outline of the PCB substrate of the circuit board type capacitive touch switch.

4. The display panel for household appliances with good fixing effect and anti-displacement according to claim 1, characterized in that: The projection of the button thin area (7) and the button touch area of ​​the PCB substrate of the circuit board capacitive touch switch coincide.

5. A display panel for household appliances with good fixing effect and anti-displacement according to claim 1, characterized in that: The supporting protrusion (3) has uniformly spaced weight-reducing grooves (9) inside.

6. A display panel for household appliances with good fixing effect and anti-displacement according to claim 1, characterized in that: The supporting ribs (8) are distributed radially in a fan shape, and the included angle between adjacent supporting ribs (8) is 20-40 degrees.

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