CN116126164A

CN116126164A - Anti-surge anti-ESD medium-and-large-size touch module

Info

Publication number: CN116126164A
Application number: CN202211726831.8A
Authority: CN
Inventors: 陈诚; 张祥林; 石林; 马张辉; 赵勇进; 盛耀武
Original assignee: Kaisheng Information Display Material Chizhou Co ltd
Current assignee: Kaisheng Information Display Material Chizhou Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-05-16

Abstract

The invention discloses an anti-surge anti-ESD medium-large-size touch module which comprises a touch shell, a PCB body and a touch panel, wherein the PCB body and the touch panel are arranged in the touch shell in a matching way, a TVS diode body is arranged on the PCB body, an anti-ESD film layer is arranged on the outer surface of the touch panel, an installation plate is detachably arranged at the input end part of the PCB body, installation grooves are arranged in parallel on the upper end surface of the installation plate, an anti-falling limiting block is arranged on one side wall in the installation groove, a clamping plate is arranged on the other side wall, and a jacking component is arranged on the installation plate and used for clamping the TVS diode body between the anti-falling limiting block and the clamping plate. The TVS diode body both sides are spacing fixed by clamp plate arcwall face and anticreep stopper respectively, and twist the locking bolt and further carry out the top to the pushing plate and solid, and the spacing cover plate of lead wire plays the auxiliary fixation effect to the TVS diode body, improves the installation stability of the TVS diode body on the PCB plate body in the touch module.

Description

Anti-surge anti-ESD medium-and-large-size touch module

Technical Field

The invention belongs to the technical field of touch modules, and particularly relates to an anti-surge anti-ESD medium-and-large-size touch module.

Background

The touch module mainly comprises: in order to improve the stability of the touch module, a plurality of TVS diodes are usually disposed on a corresponding circuit board, and a Transient Voltage Suppressor (TVS) diode is a protection device commonly used in a power circuit to provide immunity to electrostatic discharge (ESD) and voltage surge.

The chinese patent with the publication number of CN214043652U discloses a combined TVS tube mounting plate, which comprises a mounting plate body, bolt holes are formed in four corners of the top of the mounting plate body, a combined TVS tube clamping plate is arranged on one side of the top of the mounting plate body, a plurality of TVS tubes are arranged in the combined TVS tube clamping plate, first pins are fixedly connected to two ends of the TVS tubes, first leads are electrically connected to the bottoms of the first pins, one ends of the first leads are electrically connected with first lead holes, a first integrated component is arranged on one side of the combined TVS tube clamping plate, a second integrated component is arranged on one side of the first integrated component, a plurality of second pins are fixedly connected to two ends of the second integrated component, second leads are electrically connected to the bottoms of the second pins, and one ends of the second leads are electrically connected with second lead holes; the TVS tube mounting plate is convenient to assemble and disassemble through the countersunk head screw, the structural strength of the assembled TVS tube clamping plate is improved, the TVS tube is conveniently clamped through the groove, and the mounting stability of the TVS tube is improved.

For another example, in chinese patent with bulletin number CN209297270U, a touch screen with an anti-surge structure includes a mounting frame, a display screen is connected to the inside of the mounting frame in a clamping manner, the display screen includes a glass substrate, a light scattering layer is fixedly arranged at the top of the glass substrate, a touch electrode plate is fixedly arranged at the top of the light scattering layer, an anti-fouling layer is fixedly arranged at the top of the touch electrode plate, an LED lamp strip is fixedly arranged in the middle of the inside of the mounting frame, a PCB circuit board is arranged at the bottom of the inside of the mounting frame, a TVS diode is fixedly arranged at the input end of one side of the surface of the PCB circuit board, and the display screen is electrically connected with the PCB circuit board through the touch electrode plate; through the TVS diode arranged at the input end of the PCB, the bearing capacity of the component is not lower than surge voltage.

However, the above scheme has the following disadvantages: the conventional installation position of the TVS diode on the PCB circuit board is known from the chinese patent with the publication number CN209297270U, but the improvement of the installation stability of the TVS diode is not involved, while the stable installation of a plurality of TVS diodes is realized by combining TVS tube clamping plates with the chinese patent with the publication number CN214043652U, but the stable manner is only fixed by the cooperation of the TVS diode in the groove, in the use of the complex environment of the touch module, the circuit board matched with the TVS diode is easy to collide with the external environment and shake, thereby affecting the stability of the TVS diode in the groove, and the stability of the TVS diode depends on the fixing strength between the free ends of the leads and the PCB circuit board, so how to further improve the installation stability of the TVS diode on the PCB circuit board in the touch module is a problem to be solved at present.

Disclosure of Invention

The invention aims to provide a large-size touch module in anti-surge and anti-ESD so as to solve the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the utility model provides a large-scale touch module in anti-surge anti-ESD, includes touch shell and supporting PCB plate body and the touch panel that sets up in its inside, arrange the TVS diode body on the PCB plate body, the touch panel surface is provided with anti-ESD rete, PCB plate body input end can dismantle and is provided with the mounting panel, and the mounting panel up end parallel has laid the mounting groove side by side, is provided with the anticreep stopper on the inside lateral wall of mounting groove, is provided with the clamping board on another lateral wall, and is provided with the solid subassembly in top on the mounting panel, the solid subassembly in top be used for with the TVS diode body clamp is between anticreep stopper and clamping board.

Preferably, the mounting groove, the anti-falling limiting block and the clamping plate are all adaptive to the contact part of the TVS diode body, a movable groove is formed in the other side wall of the mounting groove, a pushing groove is formed in one side wall of the mounting plate, and the end face of the bottom of the movable groove is provided with a movable hole and is communicated with the pushing groove.

Preferably, the jacking component comprises a vertical rod arranged at the bottom end surface of the clamping plate, a pushing plate is inserted into the opening end of the pushing groove in a sliding manner, the bottom end of the vertical rod penetrates through the movable hole and is fixed on the pushing plate in an extending manner, pushing springs are symmetrically arranged between the extending end of the pushing plate and the side surface of the mounting plate, and the pushing springs generate spring thrust towards the outer side of the pushing plate, so that the vertical rod drives the clamping plate to clamp the TVS diode body.

Preferably, a locking screw hole is penetrated through the inner side wall of the pushing groove, a locking bolt is inserted in the locking screw hole in a matched mode, and the extending end of the locking bolt can assist in driving the pushing plate to move towards the outer side, so that the clamping density between the clamping plate and the TVS diode body is improved.

Preferably, the longitudinal rods are detachably arranged on the upper parts of the front end face and the rear end face of the clamping plate, the tail ends of the longitudinal rods are detachably provided with lead limiting cover plates, lead grooves are distributed on the bottom end faces of the lead limiting cover plates, the leads at the front end and the rear end of the TVS diode body are penetrated through the corresponding lead grooves for anti-falling protection, notch grooves are formed in the front wall and the rear wall of the inside of the movable groove, and the notch grooves are used for inserting the longitudinal rods in the initial positions.

Compared with the prior art, the invention has the beneficial effects that: through the pushing plate outwards move under the spring force effect of pushing the spring, and then indirectly make the clamp plate carry out the clamp to the TVS diode body, TVS diode body both sides are spacing fixed by clamp plate arcwall face and anticreep stopper respectively, and twist the locking bolt and further carry out the top to the pushing plate and solid, prevent that clamp plate from taking place not hard up, make the lead wire of TVS diode body front and back end wear in the wire groove, the auxiliary fixation effect to the TVS diode body is played to the spacing cover plate of lead wire to with input electric connection on lead wire end and the PCB plate body, improve the installation stability of TVS diode body on the PCB plate body in the touch-control module.

Drawings

FIG. 1 is a schematic view in front elevation and cut away of the present invention;

FIG. 2 is a schematic top view of the mounting plate of FIG. 1;

FIG. 3 is a schematic view in front elevation cut-away of FIG. 2;

FIG. 4 is a schematic view of a mounting plate structure of the present invention;

FIG. 5 is a partial schematic view of the mounting plate of FIG. 4;

fig. 6 is a schematic diagram of a mating structure of an upper lead and a lead limiting cover plate of a TVS diode body according to the present invention.

In the figure: 1. a touch control housing; 2. a PCB body; 3. a touch panel; 4. an anti-ESD film layer; 5. a mounting plate; 6. a mounting groove; 7. an anti-drop limiting block; 8. a clamping plate; 9. a movable groove; 10. a pushing groove; 11. a movable hole; 12. a vertical rod; 13. a pushing plate; 14. a pushing spring; 15. locking the screw hole; 16. a locking bolt; 17. a longitudinal rod; 18. a lead wire limiting cover plate; 19. a wire slot; 20. a notch groove; 101. TVS diode body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution:

embodiment one:

the utility model provides a large-scale touch module in anti-surge anti-ESD, including touch shell 1 and supporting PCB plate body 2 and touch panel 3 that set up in its inside, and PCB plate body 2 and touch panel 3 constitute touch module, arrange TVS diode body 101 on PCB plate body 2, TVS is the high-efficiency protection device of a diode form, when the two poles of TVS diode body 101 receive reverse transient high energy impact, it can become low impedance with the high impedance between 10 minus 12 times second order of speed, absorb the surge power up to thousands of watts, make the voltage clamp between two poles be located a predetermined value, protect the accurate components and parts in the electronic circuit effectively, avoid the damage of various surge pulses;

the external surface of the touch panel 3 is provided with an ESD-resistant film layer 4, the ESD film layer 4 is made of resin materials and has an antistatic function, an ESD diode can be arranged on the PCB body 2 to play a role in assisting in antistatic function, the input end part of the PCB body 2 is detachably provided with a mounting plate 5, the mounting plate 5 is mounted and fixed on the PCB body 2 in a bonding or screwing mode, the upper end surface of the mounting plate 5 is parallelly provided with mounting grooves 6 in parallel, the bottom of the mounting groove 6 is of a semi-cylindrical groove structure and is used for adapting to a cylindrical TVS diode body 101, the shape of the bottom of the mounting groove 6 is adaptively adjusted according to the shape of the TVS diode body 101, an anti-falling limiting block 7 is bonded or clamped and fixed on the right side wall inside the mounting groove 6, a clamping plate 8 is arranged on the left side wall of the mounting groove 6, and a jacking component is arranged on the mounting plate 5 and is used for clamping the TVS diode body 101 between the anti-falling limiting block 7 and the clamping plate 8, so that the TVS diode body 101 is firmly placed;

embodiment two:

further explaining on the basis of embodiment one, mounting groove 6, anticreep stopper 7 and clamp plate 8 are the adaptation setting with TVS diode body 101 contact portion, clamp plate 8 in this embodiment is the arc plate structure, anticreep stopper 7 side surface is the arcwall face, and clamp plate 8, anticreep stopper 7 and TVS diode body 101 contact portion all bond insulating cotton or insulating rubber, play extrusion protection, the number design of mounting groove 6 carries out the adaptation according to actual need's TVS diode body 101 number on PCB plate body 2 and adjusts, be equipped with movable groove 9 on the inside left side wall of mounting groove 6, the horizontal movement of clamp plate 8 can not receive to be blocked in the design of movable groove 9, be equipped with pushing groove 10 on the mounting panel 5 right side wall, and movable groove 9 bottom face is equipped with movable hole 11 and is linked together with pushing groove 10 and is set up.

The jacking and fixing assembly comprises a vertical rod 12 arranged on the bottom end face of the clamping plate 8, a pushing plate 13 is inserted into the opening end of the pushing groove 10 in a sliding manner, the bottom end of the vertical rod 12 penetrates through the movable hole 11 and extends to be fixed on the pushing plate 13, the extending end of the pushing plate 13 is of a T-shaped structure, pushing springs 14 are symmetrically arranged on the extending end of the pushing plate 13 and between the T-shaped side wall of the extending end and the side surface of the mounting plate 5, the pushing springs 14 generate spring thrust towards the outer side of the pushing plate 13, and then the vertical rod 12 drives the clamping plate 8 to clamp the TVS diode body 101, specifically, the clamping plate 8 enables the TVS diode body 101 to move towards the direction of the anti-falling limiting block 7, and the anti-falling limiting block 7 can prevent the TVS diode body 101 from falling as shown in fig. 3;

the inner side wall of the pushing groove 10 is penetrated with a locking screw hole 15, a locking bolt 16 is inserted in the locking screw hole 15 in a matched manner, the extending end of the locking bolt 16 can assist in driving the pushing plate 13 to move outwards, the clamping density between the clamping plate 8 and the TVS diode body 101 is improved, meanwhile, the locking bolt 16 can limit the movement displacement of the pushing plate 13 in the pushing groove 10, the pushing plate 13 slides towards the left side when the clamping plate 8 is used for fixing the TVS diode body 101, and the installation and fixation effects on the TVS diode body 101 are further improved;

the front end face and the rear end face of the clamping plate 8 are detachably provided with longitudinal rods 17, the tail end of each longitudinal rod 17 is detachably provided with a lead limiting cover plate 18, two ends of each longitudinal rod 17 can be respectively fixed with the clamping plate 8 and the lead limiting cover plates 18 in a clamping or screwing mode, a lead groove 19 is arranged on the bottom end face of each lead limiting cover plate 18, the appearance of each lead groove 19 is matched with leads at the front end and the rear end of each TVS diode body 101, leads at the front end and the rear end of each TVS diode body 101 are respectively penetrated into the corresponding lead grooves 19 for anti-falling protection, the arrangement of each lead limiting cover plate 18 improves the compression resistance of each TVS diode body 101, meanwhile, the whole TVS diode body 101 can be indirectly limited and fixed, the TVS diode body 101 is further prevented from falling loose in the installation groove 6, notch grooves 20 are formed in the front face wall and the rear face of the inside of each movable groove 9, the notch grooves 20 are used for inserting the longitudinal rods 17 at initial positions, the initial positions are the positions of the longitudinal rods 17 to be arranged when the TVS diode bodies 101 are to be installed, the longitudinal rods 17 are partially inserted into the notch grooves 20, the TVS diode bodies 8 are accommodated in the movable grooves 9, and the TVS diode bodies 101 are convenient to be installed in the movable grooves 6.

The working principle is as follows: in the installation process of the TVS diode body 101 on the PCB body 2 in the touch module, firstly, the pushing plate 13 is pressed to the left side to move in the pushing groove 10, the pushing plate 13 drives the clamping plate 8 to be temporarily contained in the movable groove 9 through the vertical rod 12, then the corresponding TVS diode body 101 is placed in the installation groove 6, the pushing plate 13 is slowly loosened, the pushing plate 13 moves outwards under the action of the spring force of the pushing spring 14, the clamping plate 8 is indirectly clamped on the TVS diode body 101, two sides of the TVS diode body 101 are respectively limited and fixed by the arc-shaped surface of the clamping plate 8 and the anti-falling limiting block 7, the pushing plate 13 is further propped and fixed by the locking bolt 16, the clamping plate 8 is prevented from loosening, the longitudinal rod 17 and the lead limiting cover plate 18 with the installation adapting length are selected according to the lead installation length of the front end and the rear end of the TVS diode body 101, the lead limiting cover plate 18 is enabled to penetrate into the lead groove 19, the auxiliary fixing effect of the TVS diode body 101 is achieved, the lead limiting cover plate 18 is used for fixing the TVS diode body 101, the lead end and the lead terminal end of the TVS diode body 2 is electrically connected to the TVS diode body 101, and the stability of the touch module is improved, and the stability of the TVS diode body is electrically connected to the PCB body 101, and the touch module is electrically mounted in the PCB body and the electronic module.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.

Claims

1. The utility model provides a large-scale touch module in anti-surge anti-ESD, includes touch shell (1) and supporting PCB plate body (2) and touch panel (3) that set up in its inside, arrange TVS diode body (101), its characterized in that on PCB plate body (2): the anti-ESD (electro-static discharge) film is characterized in that an anti-ESD film layer (4) is arranged on the outer surface of the touch panel (3), a mounting plate (5) is detachably arranged at the input end of the PCB body (2), mounting grooves (6) are arranged on the upper end face of the mounting plate (5) in parallel, an anti-falling limiting block (7) is arranged on one side wall of the upper end face of the mounting groove (6), a clamping plate (8) is arranged on the other side wall, and a jacking component is arranged on the mounting plate (5) and used for clamping the TVS diode body (101) between the anti-falling limiting block (7) and the clamping plate (8).

2. The anti-surge anti-ESD medium and large size touch module according to claim 1, wherein: the mounting groove (6), the anti-falling limiting block (7) and the clamping plate (8) are arranged in an adapting mode with the contact portion of the TVS diode body (101), a movable groove (9) is formed in the other side wall of the mounting groove (6), a pushing groove (10) is formed in one side wall of the mounting plate (5), and a movable hole (11) is formed in the bottom end face of the movable groove (9) and is communicated with the pushing groove (10).

3. The anti-surge anti-ESD medium and large size touch module according to claim 2, wherein: the top is solid subassembly including setting up montant (12) of clamping board (8) bottom end face, push groove (10) open end slip is inserted and is had push plate (13), montant (12) bottom runs through in movable hole (11) and extends to be fixed on push plate (13), push plate (13) stretch out and the symmetry is provided with between end and mounting panel (5) side surface and pushes away spring (14), pushes away spring (14) and produces the spring thrust towards the outside to push plate (13), and then makes montant (12) drive clamping board (8) carry out the clamp to TVS diode body (101).

4. The anti-surge anti-ESD medium and large size touch module according to claim 3, wherein: the pushing groove (10) is internally provided with a locking screw hole (15) in a penetrating mode, the locking screw hole (15) is internally provided with a locking bolt (16) in a matched inserting mode, the extending end of the locking bolt (16) can assist in driving the pushing plate (13) to move outwards, and clamping density between the clamping plate (8) and the TVS diode body (101) is improved.

5. The anti-surge anti-ESD medium and large size touch module according to claim 2, wherein: the utility model discloses a novel structure of TVS diode, including terminal surface around clamp plate (8), terminal surface upper portion all can dismantle around clamp plate (8) is provided with vertical pole (17), and vertical pole (17) end can dismantle and be provided with lead wire limiting cover plate (18), and lead wire groove (19) have been laid to lead wire limiting cover plate (18) bottom face, the front and back end lead wire of TVS diode body (101) all wears to correspond in lead wire groove (19) carries out the anticreep protection, all be equipped with breach groove (20) on the inside front and back face wall of movable groove (9), breach groove (20) are used for inserting of vertical pole (17) when initial position.