Anti-electromagnetic interference liquid crystal display module

Abstract

The utility model relates to the technical field of liquid crystal display modules, in particular to an anti-electromagnetic interference liquid crystal display module which comprises a PCB (printed circuit board) body, a liquid crystal display module body, a sealing frame and a discharge tip, and the liquid crystal display module body is arranged at the front end of the PCB body. A cleaning device is formed by arranging a soft brush assembly, a dust collector, a dust collection opening and a collection box, when dust adheres to the surface of the discharge tip, a motor is started, the motor drives a screw to rotate, the screw drives a connecting plate, the soft brush assembly and the dust collector to move up and down through a connecting block, and the soft brush assembly removes the dust on the surface of the discharge tip; the dust collector is started, the dust collector adsorbs dust through the dust collection port, and the collection box collects the adsorbed dust, so that the dust attached to the discharge tip is reduced, the discharge tip is kept clean, the static electricity removing effect of the liquid crystal display module is improved, and the overall electromagnetic immunity is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display modules, in particular to a liquid crystal display module that is resistant to electromagnetic interference. Background Art

[0002] Liquid crystal display is a display module that controls the rotation direction of liquid crystal molecules by changing the signal and voltage on TFT, thereby controlling whether polarized light is emitted from each pixel to achieve the display effect. Among them, the liquid crystal display needs to realize the display function through the liquid crystal display module. Since the liquid crystal display module also plays the role of an equivalent receiving wire, which is equivalent to a coupling channel for electromagnetic energy, the electromagnetic interference resistance of the liquid crystal display module restricts the electromagnetic interference resistance of the entire electronic device.

[0003] According to the search of the existing technical field publication number CN sealing cover 210038394U, an electromagnetic interference-proof liquid crystal display module is disclosed, and sealing frames are provided on both sides and the bottom of the PCB board, that is, the sealing frame semi-encloses the PCB board, and the sealing frame is formed of a conductive metal material. The outer edge of the sealing frame is raised with multiple discharge tips. The sealing frame receives the static electricity generated in the liquid crystal display module, and can release the static electricity generated in the production process through the discharge tips, thereby achieving the function of removing static electricity and realizing the technical effect of electromagnetic interference prevention. However, there is no protective dust removal device installed on the outside of the device, so that when the liquid crystal display module is used for a long time, dust is easily adhered to the discharge tips, thereby reducing the static electricity removal effect of the liquid crystal display module, resulting in a decrease in the overall electromagnetic interference resistance. Therefore, in view of the above problem, the utility model proposes an electromagnetic interference-proof liquid crystal display module. Utility Model Content

[0004] The purpose of the utility model is to provide an electromagnetic interference-proof liquid crystal display module to solve the problem that when the liquid crystal display module is used for a long time, dust is easily adhered to the discharge tip, thereby reducing the static electricity removal effect of the liquid crystal display module and causing the overall electromagnetic interference resistance to be reduced.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A liquid crystal display module for preventing electromagnetic interference comprises a PCB board body, a liquid crystal display module body, a sealing frame and a discharge tip, wherein the front end of the PCB board body is provided with a liquid crystal display module body, the outer side of the PCB board body is fixedly connected with a sealing frame, the outer sides of the left and right ends of the sealing frame are fixedly connected with discharge tips, the lower end of the PCB board body is fixedly connected with a connecting component, the lower end of the connecting component is fixedly connected with an insert block, the outer side of the discharge tip is provided with a protective shell, the inner side of the lower end of the protective shell is provided with a slot, the inner side of the slot is fixedly connected with an elastic rubber protrusion, the upper end of the protective shell is provided with a sealing cover, the upper end of the protective shell is fixedly connected with a motor, the end of the motor main shaft is fixedly connected with a screw, the outer side of the screw is spirally connected with a connecting block, the inner side of the connecting block is fixedly connected with a connecting plate, the inner side of the connecting plate is fixedly connected with a soft brush component, the inner side of the connecting plate is fixedly connected with a vacuum cleaner, the inner side of the vacuum cleaner is fixedly connected with a dust suction port, and the lower end of the vacuum cleaner is provided with a collection box.

[0007] Preferably, the PCB board body has a rectangular shape, the sealing frame has an inverted "U"-shaped cross-section, and the connecting component has a trapezoidal cross-section.

[0008] Preferably, the outer sides of the left and right ends of the connecting component fit with the inner side of the lower end of the protective shell, the number of the slots is two, and the number of the elastic rubber protrusions is several.

[0009] Preferably, the lower end of the plug block is located inside the slot, the outer side of the plug block and the inner side of the elastic rubber protrusion fit tightly, the left end of the sealing cover is connected to the upper end of the protective shell through a hinge, and the upper end of the sealing cover is fixedly connected with a handle.

[0010] Preferably, the number of the motors is two, the number of the screws is two, the number of the connecting blocks is two, the shape of the connecting plate is rectangular, and the soft brush assembly is located at the upper end of the vacuum cleaner.

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

[0012] In the utility model, a cleaning device is formed by arranging a soft brush assembly, a vacuum cleaner, a dust suction port and a collection box. When dust adheres to the surface of the discharge tip, the motor is started, the motor drives the screw to rotate, and the screw drives the connecting plate, the soft brush assembly and the vacuum cleaner to move up and down through the connecting block, so that the soft brush assembly removes the dust on the surface of the discharge tip. The vacuum cleaner is started, and the vacuum cleaner absorbs the dust through the dust suction port, and the collection box collects the absorbed dust, thereby reducing the dust adhering to the discharge tip, so that the discharge tip is kept clean, thereby improving the anti-static effect of the liquid crystal display module, and enhancing the overall electromagnetic interference resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at A;

[0015] Figure 3 For this utility model Figure 1 Schematic diagram of the structure at point B.

[0016] In the figure: 1. PCB board body; 2. LCD display module body; 3. Sealing frame; 4. Discharge tip; 5. Connecting assembly; 6. Insert block; 7. Protective shell; 8. Slot; 9. Elastic rubber protrusion; 10. Sealing cover; 11. Motor; 12. Screw; 13. Connecting block; 14. Connecting plate; 15. Soft brush assembly; 16. Vacuum cleaner; 17. Dust suction port; 18. Collection box. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-3 , the utility model provides a technical solution:

[0019] A liquid crystal display module for preventing electromagnetic interference comprises a PCB board body 1, a liquid crystal display module body 2, a sealing frame 3 and a discharge tip 4, wherein the front end of the PCB board body 1 is provided with the liquid crystal display module body 2, the outer side of the PCB board body 1 is fixedly connected with the sealing frame 3, the outer sides of the left and right ends of the sealing frame 3 are fixedly connected with the discharge tip 4, the lower end of the PCB board body 1 is fixedly connected with a connecting component 5, the lower end of the connecting component 5 is fixedly connected with an insert block 6, the outer side of the discharge tip 4 is provided with a protective shell 7, and the inner side of the lower end of the protective shell 7 is provided with a slot 8 An elastic rubber protrusion 9 is fixedly connected to the inner side of the slot 8, a sealing cover 10 is provided at the upper end of the protective shell 7, a motor 11 is fixedly connected to the upper end of the protective shell 7, a screw 12 is fixedly connected to the end of the main shaft of the motor 11, a connecting block 13 is spirally connected to the outer side of the screw 12, a connecting plate 14 is fixedly connected to the inner side of the connecting block 13, a soft brush assembly 15 is fixedly connected to the inner side of the connecting plate 14, a vacuum cleaner 16 is fixedly connected to the inner side of the connecting plate 14, a dust suction port 17 is fixedly connected to the inner side of the vacuum cleaner 16, and a collection box 18 is provided at the lower end of the vacuum cleaner 16.

[0020] The PCB body 1 is rectangular in shape, the cross-section of the sealing frame 3 is an inverted "U" shape, the cross-section of the connecting component 5 is a trapezoid, the outer sides of the left and right ends of the connecting component 5 fit with the inner side of the lower end of the protective shell 7, there are two slots 8, there are several elastic rubber protrusions 9, the lower end of the plug-in block 6 is located inside the slot 8, the outer side of the plug-in block 6 fits tightly with the inner side of the elastic rubber protrusion 9, the left end of the sealing cover 10 is connected to the upper end of the protective shell 7 through a hinge, and the upper end of the sealing cover 10 is fixedly connected with a handle, there are two motors 11, two screws 12, two connecting blocks 13, and a connecting rod 14. The connecting plate 14 is rectangular in shape, the soft brush assembly 15 is located at the upper end of the vacuum cleaner 16, the front end of the PCB board body 1 is provided with a liquid crystal display module body 2, the outer side of the PCB board body 1 is fixedly connected with a sealing frame 3, the outer sides of the left and right ends of the sealing frame 3 are fixedly connected with a discharge tip 4, the lower end of the PCB board body 1 is fixedly connected with a connecting assembly 5, the lower end of the connecting assembly 5 is fixedly connected with an insert 6, the outer side of the discharge tip 4 is provided with a protective shell 7, the inner side of the lower end of the protective shell 7 is provided with a slot 8, the inner side of the slot 8 is fixedly connected with an elastic rubber protrusion 9, the upper end of the protective shell 7 is provided with a sealing cover 10, the protective The upper end of the protective shell 7 is fixedly connected to a motor 11, the end of the main shaft of the motor 11 is fixedly connected to a screw 12, the outer side of the screw 12 is spirally connected to a connecting block 13, the inner side of the connecting block 13 is fixedly connected to a connecting plate 14, and the inner side of the connecting plate 14 is fixedly connected to a soft brush assembly 15, so that the soft brush assembly 15, the dust collector 16, the dust suction port 17 and the collection box 18 are conveniently arranged to form a cleaning device. When dust adheres to the surface of the discharge tip 4, the motor 11 is started, and the motor 11 drives the screw 12 to rotate, and the screw 12 drives the connecting plate 14, the soft brush assembly 15 and the dust collector 16 through the connecting block 13. The dust collector 16 moves up and down, so that the soft brush assembly 15 removes the dust on the surface of the discharge tip 4, and the vacuum cleaner 16 is started. The vacuum cleaner 16 absorbs the dust through the dust suction port 17, and the collecting box 18 collects the absorbed dust, thereby reducing the dust adhering to the discharge tip 4, so that the discharge tip 4 remains clean, thereby improving the static electricity removal effect of the liquid crystal display module, and enhancing the overall electromagnetic interference resistance; the vacuum cleaner 16 is fixedly connected to the inner side of the connecting plate 14, and the dust suction port 17 is fixedly connected to the inner side of the vacuum cleaner 16, and a collecting box 18 is provided at the lower end of the vacuum cleaner 16.

[0021] Working process: When the device is in use, an external power supply is connected to power, a liquid crystal display module body 2 is fixedly connected to the front end of the PCB body 1, a sealing frame 3 is fixedly connected to the outside of the PCB body 1, and discharge tips 4 are fixedly connected to the outsides of the left and right ends of the sealing frame 3. The discharge tips 4 can release static electricity generated during the production process, thereby achieving the function of removing static electricity and realizing the technical effect of preventing electromagnetic interference. A protective shell 7 is provided on the outside of the discharge tip 4, a slot 8 is provided on the inner side of the lower end of the protective shell 7, and an elastic rubber protrusion 9 is fixedly connected to the inner side of the slot 8. A connecting component 5 is fixedly connected to the lower end of the PCB body 1, and a plug 6 is fixedly connected to the lower end of the connecting component 5. Insert the plug block 6 into the slot 8, and the inner side of the elastic rubber protrusion 9 and the outer side of the plug block 6 fit tightly, so that the PCB board body 1 is fixed as a whole inside the protective shell 7. The PCB board body 1 protects and supports the PCB board body 1 as a whole. The upper end of the protective shell 7 is connected to a sealing cover 10 through a hinge. The upper end of the sealing cover 10 is fixedly connected to a handle. When the PCB board body 1 is damaged and needs to be repaired, the handle is pulled to open the sealing cover 10, so that the PCB board body 1 can be taken out of the protective shell 7 for inspection and maintenance. When dust adheres to the surface of the discharge tip 4, the upper end of the PCB board body 1 is fixedly connected to a motor 11, and the end of the main shaft of the motor 11 is fixedly connected A screw rod 12 is provided, and a connecting block 13 is spirally connected to the outer side of the screw rod 12. One end of the connecting block 13 is fixedly connected to a limiting block, and the outer side of the limiting block is slidably connected to a limiting groove. The limiting groove enables the connecting block 13 to move up and down through the limiting block. A connecting plate 14 is fixedly connected to the inner side of the connecting block 13, and a soft brush assembly 15 is fixedly connected to the inner side of the connecting plate 14. A dust collector 16 is fixedly connected to the inner side of the connecting plate 14, and a dust suction port 17 is fixedly connected to the inner side of the dust collector 16. A collecting box 18 is fixedly connected to the lower end of the dust collector 16. The soft brush assembly 15, the dust collector 16, the dust suction port 17 and the collecting box 18 constitute a cleaning device. The motor 11 is started by an external controller, and the motor 11 drives the screw 12 to rotate, and the screw 12 drives the connecting plate 14, the soft brush assembly 15 and the vacuum cleaner 16 to move up and down through the connecting block 13, so that the soft brush assembly 15 removes the dust on the surface of the discharge tip 4, and starts the vacuum cleaner 16, which absorbs the dust through the suction port 17, and the collecting box 18 collects the absorbed dust, thereby reducing the dust adhering to the discharge tip 4, so that the discharge tip 4 is kept clean, thereby improving the anti-static effect of the liquid crystal display module, enhancing the overall electromagnetic interference resistance, and reducing the corrosion of dust to the internal components of the PCB board body 1, thereby extending the service life of the PCB board body 1.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic interference-proof liquid crystal display module, comprising a PCB board body (1), a liquid crystal display module body (2), a sealing frame (3) and a discharge tip (4), characterized in that: The front end of the PCB body (1) is provided with a liquid crystal display module body (2); a sealing frame (3) is fixedly connected to the outside of the PCB body (1); discharge tips (4) are fixedly connected to the outsides of the left and right ends of the sealing frame (3); a connecting component (5) is fixedly connected to the lower end of the PCB body (1); a plug-in block (6) is fixedly connected to the lower end of the connecting component (5); a protective shell (7) is provided on the outside of the discharge tip (4); a slot (8) is provided on the inner side of the lower end of the protective shell (7); an elastic rubber protrusion (9) is fixedly connected to the inner side of the slot (8); and the protective shell (7) is provided with a slot (8) on the inner side of the slot (8). ) is provided with a sealing cover (10) at the upper end of the protective shell (7), a motor (11) is fixedly connected to the upper end of the motor (11), a screw (12) is fixedly connected to the end of the main shaft of the motor (11), a connecting block (13) is spirally connected to the outer side of the screw (12), a connecting plate (14) is fixedly connected to the inner side of the connecting block (13), a soft brush assembly (15) is fixedly connected to the inner side of the connecting plate (14), a vacuum cleaner (16) is fixedly connected to the inner side of the vacuum cleaner (16), a dust suction port (17) is fixedly connected to the inner side of the vacuum cleaner (16), and a collection box (18) is provided at the lower end of the vacuum cleaner (16).

2. The electromagnetic interference-proof liquid crystal display module according to claim 1, characterized in that: The PCB body (1) has a rectangular shape, the sealing frame (3) has an inverted "U"-shaped cross-section, and the connection component (5) has a trapezoidal cross-section.

3. The electromagnetic interference-proof liquid crystal display module according to claim 1, characterized in that: The outer sides of the left and right ends of the connection component (5) fit with the inner side of the lower end of the protective shell (7), the number of the slots (8) is two, and the number of the elastic rubber protrusions (9) is a plurality.

4. The electromagnetic interference-proof liquid crystal display module according to claim 1, characterized in that: The lower end of the plug block (6) is located inside the slot (8), the outer side of the plug block (6) and the inner side of the elastic rubber protrusion (9) are tightly fitted, the left end of the sealing cover (10) is connected to the upper end of the protective shell (7) through a hinge, and the upper end of the sealing cover (10) is fixedly connected to a handle.

5. The electromagnetic interference-proof liquid crystal display module according to claim 1, characterized in that: The number of the motors (11) is two, the number of the screw rods (12) is two, the number of the connecting blocks (13) is two, the shape of the connecting plate (14) is rectangular, and the soft brush assembly (15) is located at the upper end of the vacuum cleaner (16).

Images