Patent Description:
With the development of the technology of the smart tablet devices, the requirements to the production and assembly efficiencies of smart devices become stricter. For traditional smart tablet devices, there are a large number of scattered components, including a screen, a tempered glass, a front frame, an infrared box, a rear shell, etc., and the installation process is very complicated. For example, before installation, the screen needs to be fixed by a fixing frame, and the glass also needs to be positioned by a pressing block. In this way, the installation process has low efficiency and high cost. <CIT> discloses an infrared touch screen frame, which comprises a plurality of side strips, connecting blocks connecting the side strips, upper covers installed on the connecting blocks. <CIT> discloses a side frame configuration for projection type touch electronic whiteboard, including a frame, a light source assembly arranged in the frame, and a filter at side opening of the frame. <CIT> discloses a display device in which a rectangular frame structure covering the periphery of the display unit is partitioned into <NUM> frame members so that in the case in which the end portions of the frame members which are adjacent to each other at the four corners of the rectangle are coupled by couplings.

In addition, it is necessary to remove at least the rear shell, the screen, and the fixed connector of a traditional tablet device before detaching an infrared touch module. The whole process is complicated, low efficiency, difficult to maintain and replace. This causes the inconvenience to the user.

An all-in-one smart tablet PC includes: a screen, a glass, an infrared touch module, a rear shell and a plurality of screen supports; each of the screen supports is provided with a groove, the glass is inserted into the groove and matching the groove; each of the screen supports is further provided with a slot, the infrared touch module is positioned into the slot and matching the slot; a supporting tab is provided on a side of each of the screen supports, the supporting tabs of the screen supports are connected together end to end to form a screen frame; the screen is installed within the screen frame; and the rear shell is installed onto the back of the screen.

A screen support for an all-in-one smart tablet PC is provided. The screen support is provided with a groove for inserting a glass that matches the groove and a slot for inserting an infrared touch module that matches the slot; the screen support is further provided with a supporting tab, and a screen frame for supporting the screen is formed by the supporting tabs of a plurality of screen supports joined together end to end; the slot is arranged along the length of the screen support, and the groove is located between the supporting tab and the slot.

An infrared touch module fixing structure for an all-in-one smart tablet PC is also provided. The infrared touch module fixing structure includes corner covers and a plurality of screen supports; the corner covers are installed between adjacent screen supports, and a screen frame is formed by the plurality of screen supports joined together end to end; the borders of the screen frame are provided with slots, and a plurality of infrared touch modules are positioned respectively into each slots and matching with the slots.

An assembly method of the above all-in-one smart tablet PC is provided. The method includes the steps of:.

In the all-in-one smart tablet PC, the glass is positioned by the plurality of grooves of the screen supports. Thanks to these grooves, the glass will remain flat without deformation caused by external forces, so as to prevent oversized gap between the glass and the front frame caused by the four rising corners of the glass. The quality and the qualified rate of the product are thus improved. Further, the screen is fixed into the screen frame formed by the plurality of supporting tabs <NUM>, and the infrared touch module is inserted into the slots of the screen supports. No positioning blocks are used during the whole assembly process. This saves cost and improves the assembly efficiency, and is able to meet the requirement for large-scale and modular production. In addition, by the assembly method of the all-in-one smart tablet PC of the present invention, the positioning blocks for the glass and the screen in traditional structures are omitted, which lowers cost and improves the efficiency. Various positioning supports on the traditional screen back plate are also omitted, which simplified the structure, lowers the cost and weight. The infrared touch module is directly inserted into the slots, which enables fast detaching and assembling by saving many steps of the process and improves the efficiency.

<NUM>: screen support; <NUM>: first screen support; <NUM>: second screen support; <NUM>: groove; <NUM>: slot; <NUM>: supporting tab; <NUM>: screen frame; <NUM>: recess; <NUM>: fitting recess; <NUM>: second screw hole; <NUM>: first slot wall; <NUM>: second slot wall; <NUM>: first groove wall; <NUM>: second groove wall; <NUM>: first inclined portion; <NUM>: first fitting recess; <NUM>: second fitting recess; <NUM>: second inclined portion; <NUM>: gap; <NUM>: detent; <NUM>: first fitting opening; <NUM>: screen; <NUM>: liquid crystal glass; <NUM>: middle frame; <NUM>: screen back plate; <NUM>: first screw hole; <NUM>: buckle; <NUM>: second fitting opening; <NUM>: glass; <NUM>: infrared touch module; <NUM>: fit edge; <NUM>: rear shell; <NUM>: PCBA; <NUM>: corner cover; <NUM>: corner cover seat; <NUM>: screw through hole; <NUM>: protrusion; <NUM>: screw; <NUM>: infrared filter tape.

The method of the present disclosure will be better illustrated by the following embodiment described in detail.

As shown in <FIG>, according to an unclaimed embodiment an all-in-one smart tablet PC includes a screen <NUM>, a glass <NUM>, an infrared touch module <NUM>, a rear shell <NUM> and a plurality of screen supports <NUM>. A screen support <NUM> is provided with a groove <NUM>, in which the glass <NUM> is inserted and engaged therein. The screen support <NUM> is further provided with a slot <NUM>, in which the infrared touch module <NUM> is inserted and engaged therein. The screen support <NUM> is provided on one side with a supporting tab <NUM>, with each supporting tab <NUM> of the respective screen support <NUM> forming a screen frame <NUM> by joining together end to end. The screen <NUM> is mounted onto the screen frame <NUM>, and the rear shell <NUM> is mounted onto the back of the screen <NUM>.

In this embodiment, the glass <NUM> is positioned by the plurality of grooves <NUM> of the screen supports <NUM>. By these grooves <NUM>, the glass <NUM> will be flat without deformation caused by external forces. This will avoid the oversized gap between the glass <NUM> and the front frame caused by the four rising corners of the glass <NUM>, which improves the quality and the qualified rate of the product. Further, the screen <NUM> is fixed within the screen frame <NUM> formed by the plurality of supporting tabs <NUM>, and the infrared touch module <NUM> is inserted into the slots <NUM> of the screen supports <NUM>. No positioning blocks are involved during the whole assembly process. This saves cost and improves the assembly efficiency, and is able to meet the requirement for large-scale and modular production.

In one of the embodiments, the all-in-one smart tablet PC further includes a corner cover <NUM> mounted between two adjacent screen supports <NUM>. The corner cover <NUM> is provided to prevent dust and other debris from entering into the slot <NUM> and protect the infrared touch module therein. When detaching the infrared touch module, open the corner cover <NUM>, and pull the infrared touch module inserted into the slot <NUM> with a certain force. When assembling, align and insert the infrared touch module into the slot <NUM> with a certain force, and close the corner cover <NUM>. Compared to traditional structures, the assembling and detaching process is quite convenient and swift, saving many assembling and detaching steps and improving the efficiency for better use in large-scale and modularized production.

In the embodiment, the screen support <NUM> may include a first screen support <NUM> and a second screen support <NUM>. The first screen support <NUM> is provided on its each end with a corner cover seat <NUM>, the second screen support <NUM> is provided on its each end with a recess <NUM>, and one end of the corner cover seat <NUM> is provided with a protrusion <NUM> matching first fitting opening <NUM>, with the corner cover <NUM> mounted on the corner cover seat <NUM>. The corner cover seat <NUM> is integral with the first screen support <NUM>, which is easy to use with less components, improving the assembly efficiency. In another embodiment, the all-in-one smart tablet PC further includes a corner cover seat <NUM>, protrusions <NUM> are provided respectively on the corner cover <NUM> and the corner cover seat <NUM>; the protrusion <NUM> matches with the first fitting opening <NUM>, the corner cover seat <NUM> is mounted between the adjacent screen supports <NUM>, and the corner cover <NUM> is mounted onto the corner cover seat <NUM>.

Preferably, a fitting recess <NUM> is provided in the slot <NUM>, the infrared touch module <NUM> is provided on both sides with fit edges <NUM>, and the fit edges <NUM> are fitted into the fitting recesss <NUM>. In this way, the infrared touch module can be positioned stably.

Preferably, the screen <NUM> may include a liquid crystal (LC) glass <NUM>, a screen back plate <NUM> and a middle frame <NUM>. The middle frame <NUM> is located between the LC glass <NUM> and the screen back plate <NUM>, the screen back plate <NUM> is attached to the back of the middle frame <NUM>, the LC glass <NUM> is mounted onto the front of the middle frame <NUM>, and the screen back plate <NUM> is attached to the supporting tab <NUM>.

Preferably, the middle frame <NUM> is provide with a second fitting opening <NUM> or buckle <NUM>, the screen back plate <NUM> is provided with a buckle <NUM> or fitting opening that matches the second fitting opening <NUM> or buckle <NUM> of the middle frame <NUM>. The middle frame <NUM> and the screen back plate <NUM> are fixed together by the engagement of the buckle <NUM> and the second fitting opening <NUM>. In this way, the assembling and detaching are fast and are efficient.

Preferably, a side of the screen back plate <NUM> is provided with a first threaded hole <NUM>, the supporting tab <NUM> is provided with a second threaded hole <NUM>, and the screen back plate <NUM> is attached to the supporting tab <NUM> by a screw through the second threaded hole <NUM> and the first threaded hole <NUM>. This is easy and convenient, saving possible positioning blocks used to position the glass <NUM> and the screen <NUM>, and thus lowering cost and the difficulty.

Preferably, the screen support <NUM> may be aluminum profile. The aluminum profile has better heat dissipation effect and lighter weight.

Preferably, the all-in-one smart tablet PC further includes an infrared filter tape <NUM> covering the slot <NUM>.

A screen support <NUM> for an all-in-one smart tablet PC is provided according to an embodiment of the invention. The screen support <NUM> is provided with a groove <NUM> for inserting a glass <NUM> and a slot <NUM> for inserting an infrared touch module <NUM>, and further provided with a supporting tab105. The supporting tabs <NUM> of the plurality of screen supports <NUM> are joined together end to end to form a screen frame <NUM> for supporting the screen <NUM>. The slot <NUM> is arranged along the length of the screen support <NUM>, and the groove <NUM> is located between the supporting tab105 and the slot <NUM>.

Preferably, the supporting tab <NUM> is provided with a through hole or a threaded hole, and the screen support <NUM> is fixed with the screen <NUM> by the screw though the through hole or threaded hole. This is easy and convenient, saving possible auxiliary positioning parts compared with traditional structure, and thus lowering cost and improving the efficiency.

The slot walls on both sides of the slot <NUM> include a first slot wall <NUM> and a second slot wall <NUM>, and the groove walls on both sides of the groove <NUM> include a first groove wall <NUM> and a second groove wall <NUM>. The upper portion of the first slot wall <NUM> is overlapped with the second groove wall <NUM>. The supporting tab <NUM> is provided on the first groove wall <NUM>. The upper end of the second slot wall <NUM> is provided with a first inclined portion <NUM> extending toward the first slot wall <NUM> along the second slot wall <NUM>. The first inclined portion <NUM> is provided with a first fitting recess <NUM>, and the bottom of the slot <NUM> is provided with a second fitting recess <NUM> corresponding to the first fitting recess <NUM>. The infrared touch module <NUM> is mounted within the slot <NUM> and fixed by the first fitting recess <NUM> and the second fitting recess <NUM>. In this way, the infrared touch module <NUM> is stably fixed.

Preferably, the upper end of the second slot wall <NUM> may be provided with a second inclined portion <NUM> forming a gap <NUM> therebetween with a first inclined portion <NUM>. The first slot wall <NUM> is provided with an indent <NUM> corresponding to the gap <NUM>. The gap <NUM> and the indent <NUM> are configured to receive a cover plate, so as to protect the infrared touch module <NUM> positioned into the slot <NUM>.

Preferably, the screen support <NUM> may include the above cover plate, with both sides of the cover plate fitted respectively into the gap <NUM> and the indent <NUM>. The cover plate may be transparent or semi-transparent.

Preferably, the screen support <NUM> is provided with a recess <NUM> located below the groove <NUM> and on one side of the first slot wall <NUM>.

It is to be understood that the other technical features of the screen support for an all-in-one smart tablet PC of this embodiment are the same as those of the above all-in-one smart tablet PC and shall not be repeated herein.

An infrared touch module fixing structure for an all-in-one smart tablet PC is disclosed according to an unclaimed embodiment. The infrared touch module fixing structure includes a corner cover <NUM> and a plurality of screen supports <NUM>. The corner cover <NUM> is mounted between the adjacent screen supports <NUM>. A plurality of screen supports <NUM> are joined together end to end to form a screen frame <NUM>. Slots <NUM> are provided within the peripheral border of the screen frame <NUM> (that is, the screen support <NUM>) for receiving and matching a plurality of infrared touch modules <NUM>.

The slots <NUM> for fixing the infrared touch modules <NUM> are provided in the screen support <NUM> according to the embodiment. The corner cover <NUM> covers the area between adjacent screen supports <NUM> to prevent dust and other debris from entering into the slot <NUM> and protect the infrared touch module <NUM> therein. When detaching the infrared touch module <NUM>, open the corner cover <NUM>, and pull the infrared touch module <NUM> inserted into the slot <NUM> with a certain force. When assembling, align and insert the infrared touch module <NUM> into the slot <NUM> with a certain force, and close the corner cover <NUM>. Compared to traditional structures, the assembling and detaching process is quite convenient and swift, saving many assembling and detaching steps and improving the efficiency for better use in large-scale and modularized production.

Preferably, the screen support (that is, the border of the screen frame) <NUM> is provided with a first fitting opening <NUM>, and both sides of the corner cover <NUM> are provided with protrusions <NUM>. The protrusions <NUM> on both sides of the corner cover <NUM> are positioned respectively in the first fitting openings <NUM> of adjacent screen supports <NUM> and match the first fitting openings <NUM>. The first fitting opening <NUM> plays a role of positioning and fixing the corner cover <NUM> and makes the corner cover <NUM> more stable.

The infrared touch module fixing structure of the present invention includes a corner cover seat <NUM>, with both sides of the corner cover seat <NUM> provided with protrusions (not shown). The protrusions on both sides of the corner cover seat <NUM> are inserted respectively into the recesses <NUM> of the adjacent screen supports <NUM>. The corner cover <NUM> is mounted onto the corner cover seat <NUM>. The cover seat <NUM> is provided with a screw through hole <NUM>, and a threaded hole is provided at a position corresponding to the screw through hole 701on the corner cover <NUM>. The corner cover <NUM> is fixed by inserting the protrusions on both sides into the first fitting openings <NUM>, and is fixedly connected to the corner cover seat <NUM> by a screw.

Preferably, the bottom face of the corner cover seat <NUM> is flush with the border of the screen support <NUM>.

Further, the respective screen supports <NUM> are detachably connected. The borders of the screen support <NUM> are formed by four bars of profile in a detachable manner. This structure is easy to assemble and high in efficiency.

It is to be understood that the other technical features of the infrared touch module fixing structure for an all-in-one smart tablet PC of this embodiment are the same as those of the above all-in-one smart tablet PC and shall not be repeated herein.

As shown in <FIG>, an assembly method of the above all-in-one smart tablet PC is disclosed, including the steps of:.

In this way, the positioning blocks used with the glass <NUM> and the screen <NUM> in traditional structure are omitted, which lowers cost and improves the efficiency. Various positioning supports on the traditional screen back plate <NUM> are also omitted, which has simpler structure, lower cost and lighter weight. The infrared touch module <NUM> is directly inserted into the slot <NUM>, which enables fast detaching and assembling, saves the process and improves the efficiency.

Preferably, the method further includes, before step b, the step of: installing a LC glass <NUM> onto the front of a middle frame <NUM>, and installing the screen back plate <NUM> onto the back of a middle frame <NUM>. The screen back plate <NUM> and the middle frame <NUM> are fixed together by the matching of a buckle <NUM> and a second fitting opening <NUM>. The installation is easy and fast.

It is to be understood that the other technical features of the assembly method for an all-in-one smart tablet PC of this embodiment are the same as those of the above all-in-one smart tablet PC and shall not be repeated herein.

Claim 1:
A screen support (<NUM>) for an all-in-one smart tablet PC, wherein the screen support (<NUM>) is provided with a groove (<NUM>) for inserting matching a glass (<NUM>) and a slot (<NUM>) for inserting a matching infrared touch module (<NUM>), and further provided with a supporting tab (<NUM>); the supporting tabs (<NUM>) of a plurality of screen supports (<NUM>) are configured to be
joined together end to end to form a screen frame (<NUM>) for supporting the screen (<NUM>); the slot (<NUM>) is arranged along the length of the screen support (<NUM>), wherein the groove (<NUM>) is located between the supporting tab (<NUM>) and the slot (<NUM>),
slot walls on both sides of the slot (<NUM>) comprise a first slot wall (<NUM>) and a second slot wall (<NUM>), the screen support (<NUM>) is provided with a recess (<NUM>) located below the groove (<NUM>) and on one side of the first slot wall (<NUM>), groove walls on both sides of the groove (<NUM>) comprise a first groove wall (<NUM>) and a second groove wall (<NUM>); an upper portion of the first slot wall (<NUM>) is overlapped with the second groove wall (<NUM>), and the supporting tab (<NUM>) is provided on the first groove wall (<NUM>); an upper end of the second slot wall (<NUM>) is provided with a first inclined portion (<NUM>) extending toward the first slot wall (<NUM>) along the second slot wall (<NUM>); the first inclined portion (<NUM>) is provided with a first fitting recess (<NUM>), and the bottom of the slot (<NUM>) is provided with a second fitting recess (<NUM>) corresponding to the first fitting recess (<NUM>), the first fitting recess (<NUM>) and the second fitting recess (<NUM>) are configured to receive two opposite ends of the infrared touch module (<NUM>); a corner cover (<NUM>) and a corner cover seat (<NUM>) installed between each two adjacent screen supports (<NUM>), each corner cover seat (<NUM>) and each corner cover (<NUM>) are provided on two sides thereof with a protrusion (<NUM>) configured to be inserted respectively into the recesses (<NUM>) of the adjacent two screen supports (<NUM>), each corner cover (<NUM>) is installed onto corresponding corner cover seat (<NUM>).