CN218512935U

CN218512935U - Touch screen

Info

Publication number: CN218512935U
Application number: CN202222701922.8U
Authority: CN
Inventors: 华志轩; 葛洵
Original assignee: Wuxi Guosheng Hi Tech Co ltd
Current assignee: Wuxi Guosheng Hi Tech Co ltd
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-02-21
Anticipated expiration: 2032-10-13

Abstract

The utility model relates to the technical field of touch screens, in particular to a touch screen, which comprises a liquid crystal panel, a touch pad, an aerial plug connector, a PCBA board module and a shell, wherein the PCBA board module passes through the shell for sealing, the PCBA board module is respectively connected with the liquid crystal panel, the touch pad and the aerial plug connector through a flat cable, the shell comprises a front cover and a rear cover which can be mutually buckled to form a cavity for mounting the PCBA board module, and the front cover is provided with the liquid crystal panel, the touch pad and a flat cable through hole for the flat cable to pass through; the back lid is provided with the navigation plug, the front cover with sealing connection between the back lid. The touch screen is simple in structure and high in integration degree, and can effectively protect each functional component while improving assembly efficiency.

Description

Touch screen

Technical Field

The utility model relates to a touch-sensitive screen technical field especially relates to a touch-sensitive screen.

Background

Touch Panel (Touch Panel), also known as Touch screen or Touch Panel, is an inductive liquid crystal display device capable of receiving input signals such as Touch, when touching graphic buttons on the screen, the Touch feedback system on the screen can drive various connecting devices according to pre-programmed programs, and can replace mechanical button panels and produce vivid video and audio effects by means of liquid crystal display pictures. By using the technology, the user can operate the host machine by only lightly touching the icons or the characters on the computer display screen by fingers, so that the man-machine interaction is more direct. The technology is greatly convenient for users and is a brand new multimedia interaction device with great attraction.

In the industrial field, due to different working environments, a common touch screen is easily halted or controlled to be out of order due to the defects of the structure of the common touch screen, such as poor tightness, incapability of preventing water and the like, and the conventional touch screen is greatly dependent on labor in assembly before leaving a factory due to the disorder of wiring, so that rapid assembly cannot be realized. On the other hand, if the existing touch screen fails, the shell generally needs to be completely disassembled for internal inspection, and the shell is damaged in sealing property after the touch screen is repaired.

Therefore, a new technical solution is urgently needed to solve the technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art's problem, provide a touch-sensitive screen, can effectively solve traditional touch-sensitive screen leakproofness poor, assemble loaded down with trivial details, problem that the fault rate is high.

The above purpose is realized by the following technical scheme:

a touch screen comprises a liquid crystal panel, a touch pad, an aerial plug connector, a PCBA board module and a shell, wherein the PCBA board module is sealed through the shell, the PCBA board module is respectively connected with the liquid crystal panel, the touch pad and the aerial plug connector through a flat cable, the shell comprises a front cover and a rear cover which can be mutually buckled to form a cavity for mounting the PCBA board module, and the front cover is provided with the liquid crystal panel, the touch pad and a flat cable through hole for the flat cable to penetrate through; the back lid is provided with the navigation plug connector, the front cover with between the back lid sealing connection.

Furthermore, a touch pad limiting groove capable of limiting the touch pad is formed in the outer side surface of the front cover, and a liquid crystal panel limiting groove capable of limiting the liquid crystal panel is formed in the touch pad limiting groove; the bottom plate of the liquid crystal panel limiting groove is provided with the flat cable through hole; the liquid crystal display panel is bonded with the liquid crystal display panel limiting groove through sealing bonding glue, and the touch panel is bonded with the touch panel limiting groove through sealing bonding glue.

Furthermore, the front cover is also provided with a key through hole for a key on a silica gel key group to penetrate through, the silica gel key group is connected with a key press rod seat matched with the silica gel key group, and the key press rod seat is fixed by a press rod seat limiting groove arranged on the inner side surface of the front cover; the press key press rod seat is provided with a plurality of press rod through holes for the bottom of the press key to penetrate through, and the bottom of the press key can penetrate through the press rod through holes and act on the press key contact on the PCBA board module.

Further, still be connected with leaded light post and bee calling organ on the PCBA board module, it is corresponding, the medial surface of protecgulum has been seted up can be right leaded light post with bee calling organ carries out spacing fixed leaded light post recess and bee calling organ recess, leaded light post recess with bee calling organ recess bottom has still seted up the through-hole respectively, the leaded light post with bee calling organ respectively through sealed bonding glue with leaded light post recess with bee calling organ recess bonds.

Furthermore, an inner ring groove and an outer ring groove are formed in the inner side of the front cover, correspondingly, a flange matched with the outer ring groove is arranged on the rear cover, a sealing ring is filled in the inner ring groove, and the front cover and the rear cover are screwed through screws.

Furthermore, an aerial insertion through hole is formed in the rear cover, the aerial insertion joint is fixed to the outer side of the aerial insertion through hole, and the aerial insertion joint is connected with the PCBA board module through the flat cable penetrating through the aerial insertion through hole.

Furthermore, the rear cover is also provided with a window, and the window comprises a window cover matched with the window.

Furthermore, a window cover groove capable of limiting the window cover is formed in the outer side face of the window, a sealing ring groove is formed in the window cover groove, and a sealing ring is filled in the sealing ring groove; the window cover is screwed with the rear cover through screws.

And furthermore, the bracket mounting parts which are symmetrical to each other and can be used for screwing the fixed bracket are arranged along a group of symmetrical edges of the rear cover.

Further, the fixed bolster becomes the C type, including last lower extreme be used for with the support mounting part connects soon the support screw hole, and be located the support fixed orifices that the intermediate part is used for connecting soon with outside support.

Advantageous effects

The utility model provides a touch-sensitive screen, the casing of this device can carry out effectual fixed and sealed to each functional unit, can effectively improve the assembly efficiency before dispatching from the factory, and the window at accessible rear portion realizes not opening the convenient inside mainboard debugging of casing. The touch screen is simple in structure and high in integration degree, and can effectively protect each functional component while improving the assembly efficiency.

Drawings

Fig. 1 is a schematic structural diagram of a touch screen according to the present invention;

fig. 2 is an exploded view of a touch panel according to the present invention;

fig. 3 is a rear view of a front cover of a touch screen according to the present invention;

fig. 4 is a schematic structural diagram of a front cover of a touch screen according to the present invention;

fig. 5 is a schematic view of a first viewing angle of a rear cover of a touch screen according to the present invention;

fig. 6 is a schematic diagram of a second viewing angle of a rear cover of a touch screen according to the present invention;

fig. 7 is a schematic view of a third viewing angle of a rear cover of a touch screen.

Graphic notation:

the liquid crystal display panel comprises a 1-liquid crystal panel, a 2-touch panel, a 3-aerial plug, a 4-PCBA board module, a 5-shell, a 6-front cover, a 7-rear cover, an 8-touch panel limit groove, a 9-liquid crystal plate limit groove, a 10-silica gel key group, 11-keys, 12-key through holes, a 13-key press rod seat, a 14-press rod seat limit groove, a 15-press rod through hole, a 16-key contact, a 17-light guide column, an 18-buzzer, a 19-light guide column groove, a 20-buzzer groove, a 21-through hole, a 22-inner ring groove, a 23-outer ring groove, a 24-sealing ring, a 25-aerial plug through hole, a 26-window, a 27-window cover, a 28-window cover groove, a 29-sealing ring groove, a 30-fixing support, a 31-support mounting part, a 32-support screw hole, a 33-support fixing hole, a 34-flat cable through hole and a 35-flange.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples. The embodiments described are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 and 2, a touch screen comprises a liquid crystal panel 1, a touch pad 2, an aerial plug 3, a PCBA board module 4 and a housing 5, wherein the PCBA board module 4 is sealed by the housing 5, and the PCBA board module 4 is respectively connected with the liquid crystal panel 1, the touch pad 2 and the aerial plug 3 by flat cables; the housing 5 includes a front cover 6 and a rear cover 7 that can be fastened to each other, the front cover 6 and the rear cover 7 can form a cavity for mounting the PCBA board module 4 after being fastened (the PCBA board module 4 can be screwed and fixed by a screw and a threaded post provided by an inner wall of the cavity), and the front cover 6 is provided with the liquid crystal panel 1, the touch pad 2 and a flat cable through hole 34 for the flat cable to pass through; the rear cover 7 is provided with the aerial plug 3, and the front cover 6 is connected with the rear cover 7 in a sealing mode.

Specifically, the PCBA board module 4, i.e., the Printed circuit board of the PCBA module in the present embodiment, is also called a Printed Circuit Board (PCB), and a Printed Circuit Board (PCB) often used in english abbreviation, and is an important electronic component, which is a support for electronic components and a provider for connecting electronic component circuits. It is called a "printed" circuit board because it is made using electronic printing techniques. Before the advent of printed circuit boards, interconnections between electronic components were completed by direct wire connections. In this embodiment, the PCBA board module 4 may be screwed to the screw post provided on the inner wall of the cavity by screws to form a fixing.

As shown in fig. 3 to 7, in this embodiment, a touch panel limiting groove 8 capable of limiting the touch panel 2 is disposed on an outer side surface of the front cover 6, and a liquid crystal panel limiting groove 9 capable of limiting the liquid crystal panel 1 is disposed in the touch panel limiting groove 8; correspondingly, the liquid crystal panel 1 is bonded with the liquid crystal panel limiting groove 9 through sealing bonding glue, and the touch panel 2 is bonded with the touch panel limiting groove 8 through sealing bonding glue; the liquid crystal panel 1 may be attached to the touch panel 2. The flat cable through hole 34 is formed in the bottom plate of the liquid crystal panel limiting groove 9, so that connection between the liquid crystal panel 1 and the PCBA board module 4 is facilitated.

The touch screen is also provided with auxiliary keys 11, as an assembly form of the keys 11, the front cover 6 is provided with key through holes 12 through which the keys 11 on the silica gel key group 10 can penetrate, the silica gel key group 10 is connected through key press rod seats 13 matched with the silica gel key group, and the key press rod seats 13 are fixed through press rod seat limiting grooves 14 arranged on the inner side surface of the front cover 6; the key press rod seat 13 is provided with a plurality of press rod through holes 15 for the bottom of the key 11 to pass through, and the bottom of the key 11 can pass through the press rod through holes 15 and act on a key contact 16 on the PCBA board module 4. The structure realizes perfect limiting movement of the key 11.

As the optimization of this embodiment, still be connected with leaded light post 17 and bee calling organ 18 on the PCBA board module 4, it is corresponding, the medial surface of protecgulum 6 has been seted up can be right leaded light post 17 with bee calling organ 18 carries out spacing fixed leaded light post recess 19 and bee calling organ recess 20, leaded light post recess 19 with bee calling organ recess 20 bottom has still seted up through-hole 21 respectively, leaded light post 17 with bee calling organ 18 respectively through sealed bonding glue with leaded light post recess 19 with bee calling organ recess 20 bonds. The light guide column 17 can be used for displaying the working state of the device by light, and the buzzer 18 can be used for reminding the working state of the device by sound.

As shown in fig. 4 and 5, as a sealing structure of the housing 5 in this embodiment, an inner ring groove 22 and an outer ring groove 23 are formed along the inner side of the front cover 6, correspondingly, a flange 35 matching with the outer ring groove 23 is provided along the rear cover 7, a sealing ring 24 is filled in the inner ring groove 23, and the front cover 6 and the rear cover 7 are screwed by screws. The structure can realize double-layer sealing between the front cover 6 and the rear cover 7, and sealing adhesive glue can be injected into the outer ring groove 23 in advance and then is compressed through the flange 35, so that better waterproof sealing can be achieved.

An aerial through hole 25 is formed in the rear cover 7, the aerial connector 3 is fixed to the outer side of the aerial through hole 25, the aerial connector 3 is connected with the PCBA board module 4 through the flat cable penetrating through the aerial through hole 25, and the aerial connector 3 is used for being connected with external control equipment.

In order to facilitate the maintenance of the PCBA board module 4 without disassembling the housing 5, the rear cover 7 is further provided with a window 26 according to the present solution, and the window 26 includes a window cover 27 matched with the window 26. Specifically, a window cover groove 28 capable of limiting the window cover 27 is formed in the outer side surface of the window 26, a seal ring groove 29 is formed in the window cover groove 28, and a seal ring 24 is filled in the seal ring groove 29; the window cover 27 is screwed with the rear cover 7 by screws.

In order to facilitate the installation and fixation of the device with the outside, the bracket mounting parts 31 which are mutually symmetrical and can be screwed with the fixed bracket 30 are arranged along a group of symmetrical edges of the back cover 7. Specifically, the fixing bracket 30 is formed in a C-shape, and includes a bracket screw hole 32 having an upper end and a lower end for screwing with the bracket mounting portion 31, and a bracket fixing hole 33 located at a middle portion for screwing with an external supporter.

The above description is only for the purpose of illustrating embodiments of the present invention and should not be taken as limiting the invention, and any modifications, equivalents, improvements and the like made by those skilled in the art within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A touch screen comprises a liquid crystal panel, a touch pad, an aerial plug connector, a PCBA board module and a shell, wherein the PCBA board module is sealed through the shell, and the PCBA board module is respectively connected with the liquid crystal panel, the touch pad and the aerial plug connector through a flat cable; the back lid is provided with the navigation plug connector, the front cover with between the back lid sealing connection.

2. The touch screen according to claim 1, wherein a touch pad limiting groove capable of limiting the touch pad is formed in the outer side surface of the front cover, and a liquid crystal panel limiting groove capable of limiting the liquid crystal panel is formed in the touch pad limiting groove; the bottom plate of the liquid crystal panel limiting groove is provided with the flat cable through hole; the liquid crystal display panel is bonded with the liquid crystal display panel limiting groove through sealing bonding glue, and the touch panel is bonded with the touch panel limiting groove through sealing bonding glue.

3. The touch screen according to claim 2, wherein the front cover is further provided with a key through hole for a key on a silica gel key group to pass through, the silica gel key group is connected through a key press rod seat matched with the silica gel key group, and the key press rod seat is fixed through a press rod seat limiting groove arranged on the inner side surface of the front cover; the press key press rod seat is provided with a plurality of press rod through holes for the bottom of the press key to penetrate through, and the bottom of the press key can penetrate through the press rod through holes and act on the press key contact on the PCBA board module.

4. The touch screen of claim 2, wherein the PCBA board module is further connected with a light guide post and a buzzer, correspondingly, the inner side surface of the front cover is provided with a light guide post groove and a buzzer groove which can limit and fix the light guide post and the buzzer, the bottom of the light guide post groove and the bottom of the buzzer groove are further provided with through holes respectively, and the light guide post and the buzzer are bonded with the light guide post groove and the buzzer groove respectively through sealing adhesive glue.

5. The touch screen of claim 1, wherein an inner ring groove and an outer ring groove are formed along the inner side of the front cover, correspondingly, a flange matched with the outer ring groove is formed along the rear cover, a sealing ring is filled in the inner ring groove, and the front cover and the rear cover are screwed through screws.

6. The touch screen of claim 1, wherein the rear cover is provided with an aerial through hole, the aerial connector is fixed to the outer side of the aerial through hole, and the aerial connector is connected with the PCBA module through the flat cable penetrating through the aerial through hole.

7. The touch screen of claim 6, wherein the rear cover further defines a window, and the window comprises a matching window cover.

8. The touch screen according to claim 7, wherein a window cover groove for limiting the window cover is formed in the outer side surface of the window, a seal ring groove is formed in the window cover groove, and a seal ring is filled in the seal ring groove; the window cover is screwed with the rear cover through screws.

9. The touch screen of claim 1, wherein a set of symmetrical edges of the back cover are provided with symmetrical bracket mounting parts for screwing the fixing bracket.

10. The touch screen of claim 9, wherein the fixing bracket is C-shaped and comprises a bracket screw hole at an upper end and a lower end for screwing with the bracket mounting part, and a bracket fixing hole at a middle part for screwing with an external support.