CN2807333Y - Shaped metal frame used for infrared touch screen - Google Patents
Shaped metal frame used for infrared touch screen Download PDFInfo
- Publication number
- CN2807333Y CN2807333Y CNU2005201031874U CN200520103187U CN2807333Y CN 2807333 Y CN2807333 Y CN 2807333Y CN U2005201031874 U CNU2005201031874 U CN U2005201031874U CN 200520103187 U CN200520103187 U CN 200520103187U CN 2807333 Y CN2807333 Y CN 2807333Y
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- section bar
- shape
- frame
- section bars
- infrared
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Abstract
The utility model relates to a metal section bar frame used for infrared touch screens, which is spliced by four strip-shaped hollow metal section bars with the same section shape. An infrared transmitting and receiving tube array, and a circuit board of a signal processing circuit are installed in the section bars. An infrared light-transmitting window with the same direction to the extrusion direction of the section bars is arranged in a direction of the section bars facing to a screen of a touch screen. A plurality of operating holes for installing the circuit board are arranged on the bottom surface of the section bars. Junction surfaces among the section bars forming the whole frame are inclined surfaces which are in 45 DEG angle with the direction of an extension shaft of the section bars. Because the technical scheme uses the metal section bars, the design and fabricating cost of product moulds is saved in large amplitude. The utility model is suitable for the production, transportation and field installation of touch screens in small mass and multiple specifications (dimensions), and enhances the intensity and the rigidity of the frame. The utility model is suitable for the debugging and the installation of infrared touch screens of large dimensions, and simultaneously enhances the anti-interference performance of the signal processing circuit.
Description
Technical field
The invention belongs to technical field of computer multimedia, the technical field that especially relevant infrared touch panel is made.
Technical background
The mechanical mechanism of general infrared touch panel all be that the circuit board that will infrared emission and receiving tube array and signal processing circuit thereof be installed is installed in the frame of metal or plastics, and this frame generally all uses injection moulding or Sheet Metal Forming Technology manufacturing to finish.Because the restriction of manufacturing process, it is exactly that size is fixed that the frame of this class has a very big shortcoming, therefore in order to adapt to the display of different size, will make various mould, causes production cost high.Number is that 200520004942.3 Chinese patent application discloses a kind of framed structure of using the infrared touch panel of the splicing construction that filter material makes, tentatively solved the problem that needs numerous moulds at the touch-screen of different size, but this structure that splices and combines also has two shortcomings: the firstth, and need a special joint to come transition in the junction of framework, and this joint is because will match with framework, will cause the outside surface out-of-flatness of joint like this, bring difficulty in the installation of some application for infrared touch panel, also influence attractive in appearance if be installed in the outside of equipment such as display.The second, because filter material is a macromolecule organic material, the intensity of itself is limited, therefore under the larger-size situation of touch-screen, can cause the intensity or the rigidity of touch-screen not enough, influence wherein infrared emission receiving tube accuracy one to one, make troubles for Installation and Debugging and use.The 3rd, because nonmetallic materials do not have protective capacities to electromagnetic interference (EMI), even the ability of the anti-electromagnetic interference (EMI) of the macromolecular material of metal coating is also very limited,, limited the application of infrared touch panel under some electromagnetic interference (EMI) comparison serious situation so use the making frame of this material.
Goal of the invention
Purpose of the present invention is exactly the shortcoming at above-mentioned prior art, and the assembling combination that discloses the infrared touch panel that a kind of shape constitutes is used for the manufacturing and on-the-spot installation of infrared touch panel with regard to enough frameworks.
Technical scheme
Frame of the present invention is spliced by 4 identical bar shaped section bars of shape of cross section; Described frame can containment circuit board by inside and infrared emission, the bullion section bar receiving tube array, hollow constitute; At the xsect of section bar, on the screen orientation that described touch-screen is installed, promptly splice and combine on the madial wall of the frame that finishes, have the corresponding optical transmission window in the face that transmits and receives position with the infrared emission receiver pope, the length direction along described section bar of this window extends; On the bottom surface of the xsect of section bar, near the one side of display screen, have some handle holes that circuit board is installed that are used for when promptly installing; Constituting the faying face between 4 shapes of whole frame, is the inclined-plane that is 45 with the outrigger shaft direction of section bar.
According to above-mentioned basic structure, in present design, can also increase some other detailed structure, as be used for fixing the concrete structure of circuit board in the inner increase of the shape of bar shaped; For practicality better increases infrared filter material; Syndeton between the bar shaped section bar of formation frame or the like sees specifying of back embodiment for details.
The invention advantage
According to top description to technical scheme, the present invention has following advantage as can be known: first owing to having used section bar to simplify the design and the manufacturing of product mold, the mould that only needs a kind of profile extrusion die and a small amount of auxiliary member, therefore be suitable for the production of the many specifications of touch-screen short run (size), reduced production cost significantly; Second because metal material has strengthened the strength and stiffness of framework widely, so be more suitable for installing in the debugging of large scale infrared touch panel; The 3rd because the framework of touch-screen is to be spliced and combined by 4 section bars to form, thus can on-the-spot splicing assemble touch-screen in the user location, thus made things convenient for the transportation of product.In addition, because metal has electromagnetic shielding action, therefore also strengthened the anti-interference of signal processing circuit.
Description of drawings
Fig. 1 constitutes a strip metal section bar of frame and the 3-D view of internal circuit Board position thereof
Fig. 2 is equipped with the circuit board of infrared emission receiving tube array at the general installation site of section bar inside synoptic diagram
The structural representation that the circuit board of a kind of oat tail groove structure of Fig. 3 is fixing
The synoptic diagram of Fig. 4 infrared filter mounting structure
Fig. 5 looks synoptic diagram by the end that base plate connects the syndeton between two adjacent metal section bars
Embodiment
The ore deposit, limit that the present invention is used for infrared touch panel is spliced and combined by 4 shapes and constitutes, and Fig. 1 is the 3-D view of shape wherein.In the drawings, three continuously and the shape 1 of the hollow of an opening generally uses the mould extrusion molding, and material is generally all selected the lower aluminium alloy of easy processing price for use.The circuit board that infrared emission or receiving tube array 4 and signal processing circuit thereof are installed just is installed in the cavity of section bar, and the opening 2 of section bar is exactly to accept ultrared optical transmission window for infrared ray from emission of infrared transmitting tube array and infrared receiving tube in fact.Convenient for mounting circuit boards, also opened several handle holes 3 as required in the bottom surface of section bar 1.
Fig. 2 provides is to constitute the xsect of a section bar of frame and a kind of scheme of installation of internal circuit board thereof.Infrared emission or receiving tube array 4 among the figure, the electronic component 9 that is used for signal Processing all are installed in above the circuit board 8, and circuit board 8 then is installed near among the slide rail 6,7 of section bar bottom surface.Slide rail 6,7 is made of several projections of section bar inwall, as shown in FIG..Just in time facing to the opening of section bar, just optical transmission window 2 for the infrared of infrared emission or receiving tube array 4 or receiving plane; For stoping the influence of visible light, be equipped with in the position of window 2 and can see through infrared ray and the color filter of blocking visible light infrared receiver tube; And the size of this color filter is as the criterion to cover described window fully.Certainly, in conjunction with other accompanying drawings as shown in Figure 4, this color filter can also be installed in the outside surface of bullion section bar place one side; Edge in these outside surface both sides has constituted two grooves 14 that parallel with the outrigger shaft direction of described section bar by the outside jut of shape, and described color filter just is installed between these two grooves 14.
What Fig. 2 provided is a kind of mounting structure of the circuit board of section bar inside, and what Fig. 3 provided is the other a kind of mounting structure of described circuit board.This is a kind of mounting structure that the dovetail groove slide block is installed.As shown in the figure, the inwall at the end face of section bar just on the inwall of the one side parallel with circuit board, has a dovetail groove 10; Match with described dovetail groove 10, also have a sliding shoe 11 that has nut 12, its afterbody cooperation is installed in this dovetail groove 10.Pass the screw of circuit board 8 (not drawing among the figure) like this, just circuit board can be fixed in the cavity of section bar.3 of described handle holes can be selected suitable position according to the position of described gib screw.Simultaneously, constitute the convenience that is electrically connected between the circuit board of shape splicing place of framework for convenience, also should process handle hole, as shown in phantom in Figure 5, incomplete handle hole 3 in this position.
For easy for installation, and the considerations such as sealing of section bar cavity interior circuit board, the outside in the bottom surface of the framework that is made of shape 1 can also install some base plates 13 additional.The section bar described here or the bottom surface of framework are exactly that face that touch-screen parallels with the display screen surface when installing, and also are that faces on the common framework that touch-screen is installed in the display screen edge.Base plate 13 can also be used to connect the splicing of two adjacent bullion section bar frames, as looking the represented structure of synoptic diagram in the end of Fig. 5, the shape of base plate 13 that is connected across two adjacent bullion section bar frame faying face places is L-shaped, two arms are installed in respectively on the bottom surface of two adjacent shapes, the shape shown in dash area among Fig. 5.Here the size of base plate just can realize the effect of seal profile inner chamber body as if the size greater than handle hole 3 (the represented profile of dotted line among the figure).Mounting means between the bottom surface of base plate and shape can use the bonding agent as double sticky tape, metal-to-metal adhesive etc., also can by several screws 15, some different base plates be installed on the section bar as shown in Figure 5.Here corresponding with screw 15 nut can directly utilize the wall thickness of shape directly to process on the bottom surface.
Because frame of the present invention is spliced and combined by 4 shapes and constitutes, so can adopt the mode of inclined-plane splicing between each adjacent metal section bar.As Fig. 1 and shown in Figure 5, constitute the faying face 16 (the part faying face is covered by base plate 13 in Fig. 5, dots) between 4 shapes of whole frame, be the inclined-plane that is 45 with the direction of the outrigger shaft of section bar.So just guaranteed the tight and attractive in appearance of splicing place.
Basic technical scheme of the present utility model has been described above.But the technical solution of the utility model be not limited in this instructions the concrete structure clearly described.For example when making shape, also can be selected in the bottom surface to the opening of section bar, cooperate again and go up suitable complete circuit board installing space of base plate formation, at this moment the optical transmission window of side then can be as the handle hole of original bottom surface, use other method to process several light holes, the workplace that does not block infrared emission or receiving tube as long as the part of the metal between each light hole is enough carefully narrow both can.Therefore technical finesses such as the transformation of doing according to technical scheme of the present invention, reduction, accommodation are all within protection scope of the present invention.
Claims (8)
1. shape frame that is used for infrared touch panel, this frame is spliced by 4 identical bar shaped section bars of shape of cross section, it is characterized in that: described frame can containment circuit board by inside and infrared emission, the shape receiving tube array, hollow constitute; At the xsect of section bar, on the screen orientation that described touch-screen is installed, promptly splice and combine on the madial wall of the frame that finishes, have the corresponding optical transmission window in the face that transmits and receives position with the infrared emission receiver pope, the length direction along described section bar of this window extends; On the bottom surface of the xsect of section bar, near the one side of display screen, have some handle holes that circuit board is installed that are used for when promptly installing; Constituting the faying face between 4 shapes of whole frame, is the inclined-plane that is 45 with the outrigger shaft direction of section bar.
2. shape frame according to claim 1, it is characterized in that: be provided with a slide rail that is used for mounting circuit boards in the inside of described shape, this slide rail elongate slot formed by several projectioies of described section bar inwall, that parallel with the outrigger shaft direction of described section bar constitutes.
3. shape frame according to claim 1 is characterized in that: on the inwall of described shape, the one side parallel with circuit board, have a dovetail groove; Match with described dovetail groove, also have a sliding shoe that has nut, its afterbody cooperation is installed in this dovetail groove.
4. shape frame according to claim 1 is characterized in that: on the inwall or outer wall of the bullion section bar at described optical transmission window place, also be equipped with and can see through infrared ray and the color filter of blocking visible light; The size of described color filter is as the criterion to cover described window fully.
5. shape frame according to claim 4 is characterized in that: described color filter is installed in the outside surface of described bullion section bar place one side; Edge in these outside surface both sides has constituted two grooves that parallel with the outrigger shaft direction of described section bar by the outside jut of shape, and described color filter just is installed between these two grooves.
6. shape frame according to claim 4 is characterized in that: described color filter is installed in the inside surface of described bullion section bar place one side; Described color filter is filled within the window in the position of described optical transmission window.
7. shape frame according to claim 1 is characterized in that: if described frame also includes in the piece base plate, and described base plate uses screw or bonding agent, is installed in the outside of each the bullion section bar bottom surface that constitutes described frame.
8. shape frame according to claim 7 is characterized in that: described base plate is L-shaped in the shape at two adjacent bullion section bar frame faying face places of cross-over connection, and two arms are installed in respectively on the bottom surface of two adjacent shapes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201031874U CN2807333Y (en) | 2005-08-02 | 2005-08-02 | Shaped metal frame used for infrared touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201031874U CN2807333Y (en) | 2005-08-02 | 2005-08-02 | Shaped metal frame used for infrared touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2807333Y true CN2807333Y (en) | 2006-08-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005201031874U Expired - Lifetime CN2807333Y (en) | 2005-08-02 | 2005-08-02 | Shaped metal frame used for infrared touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2807333Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184058A (en) * | 2011-05-26 | 2011-09-14 | 广州视睿电子科技有限公司 | Dustproof and waterproof frame of infrared touch screen |
| CN102270412A (en) * | 2010-12-30 | 2011-12-07 | 友达光电股份有限公司 | Display device |
| CN102419667A (en) * | 2011-10-27 | 2012-04-18 | 北京汇冠新技术股份有限公司 | Light-permeable component used on infrared touch screen, infrared touch screen and touch displayer |
| CN102426501A (en) * | 2011-10-27 | 2012-04-25 | 北京汇冠新技术股份有限公司 | Built-in infrared touch screen |
| WO2017143670A1 (en) * | 2016-02-25 | 2017-08-31 | 京东方科技集团股份有限公司 | Frame member for touch screen and touch screen using same |
-
2005
- 2005-08-02 CN CNU2005201031874U patent/CN2807333Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102270412A (en) * | 2010-12-30 | 2011-12-07 | 友达光电股份有限公司 | Display device |
| CN102184058A (en) * | 2011-05-26 | 2011-09-14 | 广州视睿电子科技有限公司 | Dustproof and waterproof frame of infrared touch screen |
| CN102419667A (en) * | 2011-10-27 | 2012-04-18 | 北京汇冠新技术股份有限公司 | Light-permeable component used on infrared touch screen, infrared touch screen and touch displayer |
| CN102426501A (en) * | 2011-10-27 | 2012-04-25 | 北京汇冠新技术股份有限公司 | Built-in infrared touch screen |
| CN102419667B (en) * | 2011-10-27 | 2015-03-11 | 北京汇冠新技术股份有限公司 | Light-permeable component used on infrared touch screen, infrared touch screen and touch displayer |
| WO2017143670A1 (en) * | 2016-02-25 | 2017-08-31 | 京东方科技集团股份有限公司 | Frame member for touch screen and touch screen using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: M8, building 4, building 1, Jiuxianqiao East Road, 100016 Beijing, Chaoyang District,, China Patentee after: Beijing UNITOP New Technology Co., Ltd. Address before: M8, building 4, building 1, Jiuxianqiao East Road, 100016 Beijing, Chaoyang District,, China Patentee before: UNITOP New Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Expiration termination date: 20150802 Granted publication date: 20060816 |
|
| EXPY | Termination of patent right or utility model | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Xiaohong Document name: Notification of Expiration of Patent Right Duration |