A control switch screen mounting structure with elastic plate buffering

Abstract

The application relates to the technical field of switch screen installation, and discloses a control switch screen installation structure with elastic plate buffering, which comprises a face shell, a placing cavity is arranged in the face shell, two elastic plates are arranged side by side in the placing cavity, and the two elastic plates divide the placing cavity into a screen placing area and a key placing area; a screen module is arranged in the screen placing area, and a key assembly is arranged in the key placing area; the placing cavity is covered by a PCBA plate, and the PCBA plate is electrically connected with the screen module; the placing cavity is divided into the screen placing area and the key placing area by the two elastic plates arranged side by side, elastic buffering support is provided during screen module installation, unexpected external force possibly occurring in the assembling process is effectively absorbed, and therefore the quality defect of "rainbow printing" in the LCD screen caused by rigid impact is fundamentally solved.

Description

Technical Field

[0001] This application relates to the technical field of switch screen installation, and more particularly to a control switch screen installation structure with elastic plate buffer. Background Technology

[0002] In the existing technology, the LCD screen used in control switches (such as industrial equipment control panels, smart home switches, etc.) is usually pre-positioned and fixed by a fixed positioning groove (or positioning bone) on the housing or bracket during installation. However, the structure, size and position of this fixed positioning groove cannot be changed after the mold is made, and there is a lack of effective adjustment margin. During the assembly process, when the operator applies external force (such as pressing) or uses automated equipment for assembly, any unexpected external force will be directly transmitted to the glass substrate and polarizer of the LCD screen through the rigid positioning groove. This direct rigid impact can easily cause "color red marks" to be generated inside the LCD screen.

[0003] Therefore, there is an urgent need for a control switch screen mounting structure with elastic plate buffer to solve the above problems.

[0004] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is prior art. Utility Model Content

[0005] The main purpose of this application is to provide a control switch screen mounting structure with elastic plate buffer, which solves the problem that the size of the LCD screen positioning slot in the existing control switch is relatively fixed and cannot be effectively adjusted or buffered.

[0006] To achieve the above objectives, this application provides a control switch screen mounting structure with elastic plate buffer, including a face shell, a placement cavity in the face shell, and two elastic plates arranged side by side in the placement cavity, wherein the two elastic plates divide the placement cavity into a screen placement area and a button placement area. The screen placement area is provided with a screen module, and the button placement area is provided with a button assembly; The housing covers the placement cavity via a PCBA board, which is electrically connected to the screen module.

[0007] As a preferred embodiment of this application, the screen module includes a backlight panel, conductive silicone, an LCD screen, and a transparent lens. The backlight panel is integrated on the PCBA board, and the conductive silicone is disposed on both sides of the backlight panel on the PCBA board. The LCD screen is disposed on the backlight panel, and the transparent lens is disposed on the LCD screen.

[0008] As a preferred embodiment of this application, the screen placement area is provided with a display window, the display area of ​​the screen module is located in the display window, and the upper surface of the screen module does not extend beyond the surface of the shell.

[0009] As a preferred embodiment of this application, it further includes an annular seal, which is fitted onto the outer edge of the transparent lens.

[0010] As a preferred embodiment of this application, the PCBA board is provided with a plurality of tactile switches, and the button assembly is covered on the tactile switches.

[0011] As a preferred embodiment of this application, the button assembly includes a silicone sleeve and keycaps. The silicone sleeve covers a plurality of the tactile switches. The silicone sleeve is provided with mounting positions corresponding to the plurality of the tactile switches. Each mounting position is provided with a keycap, and the keycaps are slidably connected to the faceplate.

[0012] As a preferred embodiment of this application, the faceplate is provided with a plurality of placement slots for accommodating the buttons, and the buttons can slide relative to each other in the placement slots.

[0013] As a preferred embodiment of this application, there is a gap between the two elastic plates.

[0014] As a preferred embodiment of this application, a positioning post is provided in the gap.

[0015] As a preferred embodiment of this application, the PCBA board is connected to the faceplate by fasteners, and the faceplate has an integrally formed connecting portion for the fasteners to be locked in.

[0016] This application provides a control switch screen mounting structure with elastic plate buffer. By using two elastic plates arranged side by side, the placement cavity is divided into a screen placement area and a button placement area. During screen module installation, it provides elastic buffer support and effectively absorbs unexpected external forces that may occur during assembly. This avoids the problem of traditional rigid positioning grooves directly transmitting impact force to the LCD screen glass substrate and polarizer, thereby fundamentally solving the quality defect of "rainbow marks" inside the LCD screen caused by rigid impact. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a control switch screen mounting structure with elastic plate buffer according to an embodiment of this application; Figure 2 This is a first exploded view of a control switch screen mounting structure with elastic plate buffer in one embodiment of this application; Figure 3This is a schematic diagram of a second three-dimensional structure of a control switch screen mounting structure with elastic plate buffer in one embodiment of this application; Figure 4 This is a second exploded view of a control switch screen mounting structure with elastic plate buffer in one embodiment of this application.

[0018] Explanation of reference numerals in the attached figures: 1. Front cover; 2. Elastic plate; 3. Screen placement area; 4. Button placement area; 5. Screen module; 6. Button assembly; 7. PCBA board; 8. Annular seal; 9. Positioning post; 10. Tactile switch; 11. Display window; 12. Placement slot; 51. Backlight panel; 52. Conductive silicone; 53. LCD screen; 54. Transparent lens; 61. Silicone sleeve; 62. Keycap. Detailed Implementation

[0019] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0020] Furthermore, descriptions using terms such as "first" and "second" in this application are for descriptive purposes only (e.g., to distinguish identical or similar elements) and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, technical solutions from different embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If a combination of technical solutions is contradictory or impossible to implement, such a combination should be considered nonexistent and not within the scope of protection claimed in this application.

[0021] Please refer to Figure 1 , Figure 3 , Figure 4 In one embodiment, a remote control MAC address reading and labeling system includes: a face shell 1, a placement cavity in the face shell 1, two elastic plates 2 arranged side by side in the placement cavity, and the two elastic plates 2 divide the placement cavity into a screen placement area 3 and a button placement area 4, and there is a gap between the two elastic plates 2, in which a positioning post 9 is provided; The screen placement area 3 is equipped with a screen module 5, and the button placement area 4 is equipped with a button assembly 6; The housing 1 covers the placement cavity through the PCBA board 7, and the PCBA board 7 is electrically connected to the screen module 5.

[0022] It is understood that the faceplate 1 is the main load-bearing component of this structure. It has a placement cavity in the middle, and two parallel and spaced elastic plates 2 are set in the placement cavity. The two elastic plates 2 divide the placement cavity into a screen placement area 3 and a button placement area 4. The two elastic plates 2 are integrally injection molded with the faceplate 1 from engineering plastics (such as PC and ABS) with certain elasticity and strength. When the screen module 5 is placed in the screen placement area 3, the bottom of the screen module 5 is supported by the two ABS elastic plates 2. The two ABS elastic plates 2 can act as an efficient elastic lever. When subjected to vertical pressure, they produce a small amount of controllable elastic deformation and swing. The elastic design of the elastic plates 2 allows for a certain tolerance, which reduces the assembly precision requirements. Whether it is manual or automated assembly, it can effectively reduce screen damage caused by improper operation and significantly improve the production yield. Furthermore, a gap is maintained between the two elastic plates 2, and a positioning post 9 is provided in the gap. The positioning post 9 is also integrally formed with the face shell 1, and is used to accurately position the screen module 5 in subsequent assembly to prevent it from moving left and right. PCBA board 7 is fastened to the connecting part on the back of the faceplate 1 by screws and other fasteners, thereby completely covering and sealing the placement cavity. PCBA board 7 and screen module 5 are electrically connected through flexible circuit board or connector. This application divides the placement cavity into a screen placement area 3 and a button placement area 4 by using two parallel elastic plates 2. This provides elastic buffer support during the installation of the screen module 5, effectively absorbing unexpected external forces that may occur during the assembly process. It avoids the problem of traditional rigid positioning grooves directly transmitting impact force to the LCD screen 53 glass substrate and polarizer, thereby fundamentally solving the quality defect of "rainbow marks" inside the LCD screen 53 caused by rigid impact.

[0023] Specifically, please refer to Figure 2 , Figure 3 Based on the above embodiments, the screen placement area 3 is provided with a display window 11, the display area of ​​the screen module 5 is located in the display window 11, and the upper surface of the screen module 5 does not extend beyond the surface of the shell 1.

[0024] Furthermore, the screen module 5 includes a backlight panel 51, conductive silicone 52, an LCD screen 53, and a transparent lens 54. The backlight panel 51 is integrated on the PCBA board 7, and conductive silicone 52 is disposed on both sides of the backlight panel 51 on the PCBA board 7. The LCD screen 53 is disposed on the backlight panel 51, and the transparent lens 54 is disposed on the LCD screen 53.

[0025] Furthermore, it also includes an annular seal 8, which is fitted around the outer edge of the transparent lens 54.

[0026] It is understood that the screen module 5 includes a backlight panel 51, an LCD screen 53 and a transparent lens 54 from bottom to top. A display window 11 is provided on the front side of the screen placement area 3. After assembly, the transparent lens 54 is sealed to the display window 11. The outer edge of the transparent lens 54 is also fitted with an annular sealing member 8. This sealing member is preferably made of rubber or silicone to prevent dust and moisture from entering the interior through the gap between the display window 11 and the screen module 52. Specifically, please refer to Figure 2 Based on the above embodiments, a plurality of tactile switches 10 are provided on the PCBA board 7, and button components 6 are covered on the tactile switches 10.

[0027] Furthermore, the button assembly 6 includes a silicone sleeve 61 and keycaps 62. The silicone sleeve 61 covers a number of tactile switches 10. The silicone sleeve 61 is provided with mounting positions corresponding to the positions of the number of tactile switches 10. Each mounting position is provided with a keycap 62. The keycap 62 is slidably connected to the front cover 1. More specifically, the front cover 1 is provided with a number of placement slots 12 for accommodating the buttons. The buttons can slide relative to each other in the placement slots 12.

[0028] It is understandable that a button assembly 6 is provided in the button placement area 4. The button assembly 6 includes a silicone sleeve 61 and multiple keycaps 62. Multiple tactile switches 10 corresponding to the button functions are soldered on the PCBA board 7. The silicone sleeve 61 covers all the tactile switches 10 and provides a certain waterproof effect. Furthermore, the silicone sleeve 61 has an upwardly protruding mounting position corresponding to the position of each tactile switch 10, and a keycap 62 is fixed on each mounting position. The faceplate 1 has a placement groove 12 corresponding to the keycap 62. The upper part of the keycap 62 passes through the placement groove 12 and is exposed outside the faceplate 1 for the user to press and operate.

[0029] Specifically, please refer to Figure 3 , Figure 4 Based on the above embodiments, the PCBA board 7 is connected to the face shell 1 by fasteners, and the face shell 1 has an integrally formed connecting part for fasteners to be locked in.

[0030] It is understandable that the connecting part consists of several screw posts symmetrically arranged in the placement cavity, and the fastener is a screw. The locking force provided by the screw ensures that the PCBA board 7 can tightly cover and seal the placement cavity, thereby fixing the internal screen module 5 and button assembly 6 and preventing them from loosening; at the same time, the symmetrically distributed screw posts can increase the locking force.

[0031] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, apparatus, article, or method. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, apparatus, article, or method that includes that element. The above descriptions are merely preferred embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural modifications made based on the content of this specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A control switch screen mounting structure with elastic plate buffer, characterized in that, The device includes a front shell, in which a placement cavity is provided. The placement cavity is provided with two elastic plates arranged side by side, and the two elastic plates divide the placement cavity into a screen placement area and a button placement area. The screen placement area is provided with a screen module, and the button placement area is provided with a button assembly; The housing covers the placement cavity via a PCBA board, which is electrically connected to the screen module.

2. The control switch screen mounting structure with elastic plate buffer according to claim 1, characterized in that, The screen module includes a backlight panel, conductive silicone, an LCD screen, and a transparent lens. The backlight panel is integrated on the PCBA board, and the conductive silicone is disposed on both sides of the backlight panel on the PCBA board. The LCD screen is disposed on the backlight panel, and the transparent lens is disposed on the LCD screen.

3. The control switch screen mounting structure with elastic plate buffer according to claim 1, characterized in that, The screen placement area has a display window, the display area of ​​the screen module is located in the display window, and the upper surface of the screen module does not extend beyond the surface of the shell.

4. The control switch screen mounting structure with elastic plate buffer according to claim 2, characterized in that, It also includes an annular seal, which is fitted around the outer edge of the transparent lens.

5. The control switch screen mounting structure with elastic plate buffer according to claim 1, characterized in that, The PCBA board is provided with a number of tactile switches, and the button assembly is covered on the tactile switches.

6. The control switch screen mounting structure with elastic plate buffer according to claim 5, characterized in that, The button assembly includes a silicone sleeve and keycaps. The silicone sleeve covers a plurality of the tactile switches. The silicone sleeve has mounting positions corresponding to the positions of the plurality of tactile switches. Each mounting position is provided with a keycap. The keycaps are slidably connected to the faceplate.

7. The control switch screen mounting structure with elastic plate buffer according to claim 6, characterized in that, The faceplate has several slots for accommodating the buttons, and the buttons can slide relative to each other in the slots.

8. The control switch screen mounting structure with elastic plate buffer according to claim 1, characterized in that, There is a gap between the two elastic plates.

9. The control switch screen mounting structure with elastic plate buffer according to claim 8, characterized in that, A positioning post is provided in the gap.

10. The control switch screen mounting structure with elastic plate buffer according to claim 1, characterized in that, The PCBA board is connected to the faceplate by fasteners, and the faceplate has an integrally formed connecting part for the fasteners to be locked in.

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