CN201127144Y - Frame for infrared touch screen - Google Patents
Frame for infrared touch screen Download PDFInfo
- Publication number
- CN201127144Y CN201127144Y CNU2007201906998U CN200720190699U CN201127144Y CN 201127144 Y CN201127144 Y CN 201127144Y CN U2007201906998 U CNU2007201906998 U CN U2007201906998U CN 200720190699 U CN200720190699 U CN 200720190699U CN 201127144 Y CN201127144 Y CN 201127144Y
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- Prior art keywords
- section bar
- injection
- aluminium section
- frame
- moulded housing
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- Expired - Lifetime
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Abstract
The utility model relates to a frame for infrared touch screen, which is made of metal section bars mainly including aluminum section bar and plastic material. The section of the aluminum section bar includes a U shape having two edges of different lengths, the long edge covers the opening corresponding to an injection case, and combines with the injection case to form a cavity for mounting a circuit board, the short edge is embedded into a continuous or discontinuous slot of the edge of the injection case; a protrusion for limiting the position of the circuit board is arranged in the opening of the injection case; the opening of the long edge of the aluminum section bar and one edge of the injection case include an infrared light-permeable window and an opening for mounting a protective glass plate. The aluminum section bar is a special extruded part for sections, when used, is cut according to the length needed by the touch screen frame, then drilled, surface treated and secondarily processed to form a component suitable for the touch screen. The frame has the advantages of good rigidness, simple processing technology and simple assembly, and is very suitable for large or middle scale production.
Description
Technical field
The present invention relates to a kind of mounting structure that is used for infrared touch panel, belong to dynamo-electric design field, in particular for the technical field of infrared touch panel.
Background technology
The basic structure of infrared touch panel is the infrared emission that vertical and horizontal arrange is installed in a frame and receives the pipe array, and these drive circuit that transmits and receives pipe and signal processing circuits is installed.The general mounting structure of existing infrared touch panel all is to use steel plate or corrosion resistant plate to make the agent structure of frame basically, to guarantee the overall mechanical strength and the installation strength of touch-screen.Mainly be configured with two kinds: a kind of being to use through the steel plate after the processing such as punching press, bending is welded into a frame; Steel plate or corrosion resistant plate that another kind of structure is to use monoblock utilize the mode of punching press to be processed into incorporate frame structure.But existing these two kinds of structures all have some shortcomings.At first, the framework that utilizes welding manner to constitute generally is only limited to steel plate, and then cost is very high to use corrosion resistant plate, even is higher than the structure of whole punching press; And welding also is easy to generate distortion and needs to revise one by one, therefore is not easy to realize low-cost batch production.Secondly, because the very thin thickness of the frame of infrared touch panel, narrower in width are subjected to the width of bending and the restriction of the degree of depth, general panel beating means, comprise the drawing of monoblock steel plate, all be difficult to process at low cost very high, the thin but also narrow frame not only of rigidity.Therefore cause touch-screen in assembling, produce additional deformation when perhaps being installed on the display, influence the debugging and the operate as normal of touch-screen.
Number is that 200520103187.4 Chinese patents disclose a kind of frame scheme of using aluminium section bar, the problem above part has solved.This scheme does not need special mould, is well suited for big, the production of little infrared touch panel in batches of size, but when being used for the bigger in batches production of single model, very big shortcoming is arranged but.At first, this scheme has used a lot of screws to come Installation and Debugging hole on the fastening aluminium section bar bottom surface, and the gusset plate of four edge strip splicings when becoming frame, has therefore increased the complexity of production operation; Connection more complicated between next circuit board must use connector to connect, because could connect after need being installed to circuit board in the section bar frame.Have, this structure is inconvenient to install the cover glass plate again.
Summary of the invention
Purpose of the present invention exactly at the weak point of the structure of the existing circuit board that is used to constitute the infrared touch panel frame, discloses a kind of border structure scheme of simple in structure, handling ease.There is cavity frame of the present invention inside, is used for mounting circuit boards and is installed in infrared emission on the circuit board and element such as receiving tube array, is made of metal and plastic material.In the present invention, described frame is made of aluminium section bar and injection-moulded housing; The cross section of aluminium section bar includes the different U font of both sides length, one side long covering on the injection-moulded housing and with injection-moulded housing constitutes the cavity that described circuit board is installed, one side in the short continuous or interrupted crack that is embedded into the injection-moulded housing edge; Described injection-moulded housing is the opening of an opening in the corresponding direction in long limit with the U type cross section of aluminium section bar, has in the opening to be provided with the projection that limits circuit board position; The opening on the long limit of aluminium section bar and one side of injection-moulded housing constitute the opening that the cover glass plate is installed.
In the present invention, between described aluminium section bar and the injection-moulded housing, can be fixed together by bonding mode, also can the screw hole of different parts be fixed together on the moulding by being arranged on.Constituting on the injection-moulded housing of described frame, be provided with and be used for going up the fixedly screw hole of touch-screen at display surface (generally be display, but but also can be the surface of other touch-control).Another kind is used on display the fixedly structure of touch-screen, is the edge 111 (cross section that dotted line surrounds among the figure) that increases an extension on long limit one side of described U font cross section aluminium section bar, is provided for installing the installing hole of touch-screen on this edge.
Here said injection-moulded housing can use the optical material manufacturing of can be by infrared light but can block visible light.For the cover glass plate is installed, between long limit that can aluminium section bar cross section, described U font cross section and the injection-moulded housing edge groove is set.Certainly; injection-moulded housing can also use opaque made; so then need be at the opening direction in aluminium section bar U font cross section; be that infrared emission is or/and between the long limit and injection-moulded housing edge in the place ahead of receiving tube, aluminium section bar cross section; be equipped with bar shaped, can be by infrared light but optical material that can block visible light, and constitute the groove that the cover glass plate is installed between described bar shaped optical material and the aluminium section bar.If consider sealing again, then a groove that is used for packing matcrial can be set in addition in the groove of described installation cover glass plate again.
The present invention has used the shape in the very good U type of stiffness characteristics cross section, has therefore solved the rigidity not enough problem on deformation that produce of touch-screen because of framework; Simultaneously because the present invention has used the moulding that has broad opening, the circuit board that connects can directly be installed, and the simple shape in cross section, therefore have simple for assembly process, the easy advantage of enforcement, be particularly suitable for the low-cost production of bigger in batches product.
Description of drawings
Fig. 1: the sectional view of a frame of the present invention.
Fig. 2: a kind of front view of implementing structure of moulding.
Fig. 3: the corresponding relation schematic diagram between moulding shown in Figure 2 and the sectional view shown in Figure 1.
Fig. 4: the stravismus schematic diagram of mounting structure between shape and the moulding.
Specific embodiments
Below in conjunction with accompanying drawing an existing embodiment of the present invention is described, and some feasible partial structurtes, further specify technical scheme of the present invention.
As the frame of infrared touch panel, its functional requirement is as follows: certain intensity, rigidity; Can hold circuit board and ease of assembly debugging down; Assembling leaves the optical transmission window of coming in and going out for infrared ray easily between the structure member, and the convenient cover glass plate that adds.The structure of Fig. 1 has just satisfied these requirements.
Fig. 1 has provided a kind of actual embodiment of using.In the drawings, the aluminium section bar cover plate 103 in U type cross section is installed in and is used for mounting circuit boards 104 and the top infrared emission or the injection-moulded housing 102 of receiving tube 105, can connect by the structure of bonding or screw between the two.Two edge lengths of the aluminium section bar in U font cross section are different, long one side covers on the injection-moulded housing 102, and the cavity 112 that described circuit board constitute to be installed in injection-moulded housing, one side short be embedded into the injection-moulded housing edge, by in the interrupted crack 113 that constitutes between the projection 108 of shell rim and the housing bottom surface.If the root of projection 108 is connected together, just constituted a continuous crack.Injection-moulded housing is the opening of an opening in the corresponding direction in long limit with the U type cross section of aluminium section bar, be used to install described circuit board, and a projection 106 is arranged in opening, be used to support and limit the height in housing of circuit board, this projection and housing are near the outer wall of the bottom surface in aluminium section bar U font cross section, naturally formed a groove 107, the haywire wiring when can be used for the debug circuit plate; The opening on the long limit of aluminium section bar and the base of injection-moulded housing constitute the opening that can be used in installation infrared filtering window 110 and cover glass plate 101.Described infrared absorption filter window, use can be by infrared lights but optical material manufacturing that can block visible light.If not really pay attention to the cost of roundwood material, then whole moulding housing can use this material of can be by infrared light but can block visible light to make, and at this moment described filter window 110 and whole housing become one but not two parts that need fit together.Slit between seal protection glass plate and the injection-moulded housing if desired; then filling sealing agent gets final product (as can be seen from the figure in the groove 109 of the inside of filter window; touch-screen need turn over turnback with whole framework when installing; the one side of aluminium section bar contacts with the surface of shell of the display that touch-screen is installed, and has so just realized the sealing between glass plate and the touch-screen).
The front view of described injection-moulded housing as shown in Figure 2.Can see the structure that screw is connected of passing through between the aluminium section bar in injection-moulded housing and U type cross section from this figure, i.e. the screw hole 201 and 203 in housing bight all can be used for fixing the cover plate of aluminium section bar.Difference is: if use screw hole 201 to fix, be to fix at frame facet, be convenient to the maintenance dismounting; If use screw hole 203 to fix, then fix on the surface of cover plate, when touch-screen was installed, this screw is hidden between the surface and touch-screen framework at display edge (as mentioned above, touch-screen need turn over turnback when installing), and was more apparent succinctly attractive in appearance.These two kinds of fixed forms show more clearly in Fig. 4.Installing hole 202 is used for fixing fixing between touch-screen and the display (but or display surface of other touch-control) among the figure.But this is a kind of in the various fixed mode.The fixed form that also has a lot of other kinds shown in Fig. 1, at the edge that increases an extension on long limit one side of described U font cross section aluminium section bar, is provided for installing the installing hole of touch-screen.In addition, various fixing, the installing hole that provide among the figure all are according to the ordinary circumstance design, are arranged on the bight of framework.But other any positions that do not influence circuit board wiring at framework can be opened in these holes, are not limited only to the bight in practice.
Fig. 3 has more clearly provided the corresponding relation of mechanical structure between the sectional view of the front view (Fig. 2) of injection-moulded housing and touch-screen frame.Because the dotted line among the figure has connected corresponding profile view, so in this just no longer explanation.
Fig. 4 is the oblique view in a bight of framework that injection-moulded housing and aluminium section bar cover plate are installed together.From figure, can know the structural relation of seeing when using screw to connect the two.Among the figure, fixedly 401 need of the screw of injection-moulded housing and aluminium section bar are selected according to actual needs in a mounted on surface of aluminium section bar; Aluminium shape surface is used for fixing the position of the through hole 402 of touch-screen, and is corresponding with the position of through hole among Fig. 2 202.
In actual applications, aluminium section bar be one be exclusively used in the present invention design, length is longer than the standard component of touch-screen frame length, generally the mode of the shaping by extruding is made.When being applied to the technical program, follow according to the required physical length intercepting that the aluminium section bar part is installed on the touch-screen frame to obtain, again through becoming the parts that are applicable to this touch-screen after the secondary operations such as boring, surface treatment.
The front has illustrated realizes actual technical scheme of implementing of the object of the invention, but is not unique technical scheme.Such as the aluminium section bar that uses in the present invention, can substitute with the section bar of other metal or alloy fully, such as the better almag of intensity, perhaps special stamping forming steel plate (the secondary operations difficulty more greatly) etc., only mentioned aluminium section bar among the present invention, mainly be that cost is lower, is widely used because this materials processing is good.Fixed form between shape and the moulding can also use the mode of clamping to be installed together by the design to injection-moulded housing for another example.Therefore improvement, the transplanting of the carrying out on the basis of the given basic technical scheme of the present invention, the design of mode such as replacing, deleting all belong within the protection range of the technical program.
Claims (10)
1. frame that is used for infrared touch panel, frame inside has cavity to be used for mounting circuit boards and is installed in infrared emission on the circuit board and element such as receiving tube array, be made of metal and plastic material, it is characterized in that: described frame is made of aluminium section bar and injection-moulded housing; The cross section of aluminium section bar includes the different U font of both sides length, one side long covering on the injection-moulded housing and with injection-moulded housing constitutes the cavity that described circuit board is installed, one side in the short continuous or interrupted crack that is embedded into the injection-moulded housing edge; Described injection-moulded housing is the opening of an opening in the corresponding direction in long limit with the U type cross section of aluminium section bar, has in the opening to be provided with the projection that limits circuit board position; The opening on the long limit of aluminium section bar and one side of injection-moulded housing constitute the opening that the cover glass plate is installed.
2. frame according to claim 1 is characterized in that: described aluminium section bar and injection-moulded housing are only seen by bonding mode and are fixed together.
3. frame according to claim 1 is characterized in that: in the direction of the injection-moulded housing that constitutes described frame towards the long limit in the U type cross section of aluminium section bar, be provided with the fixedly screw hole of aluminium section bar.
4. frame according to claim 1 is characterized in that: on the injection-moulded housing that constitutes described frame, be provided with the screw hole that is used for fixing touch-screen.
5. according to claim 3 or 4 described frames, it is characterized in that: the described aluminium section bar or the fixing screw hole of touch-screen of being used for fixing is positioned at the bight of described frame.
6. frame according to claim 1 is characterized in that: long limit one side in the bottom of described U font cross section aluminium section bar U font, also have one to the edge of the extension of touch-screen lateral direction, and this edge is provided with the installing hole that is used to install touch-screen.
7. frame according to claim 1 is characterized in that: described injection-moulded housing is to use the optical material manufacturing of can be by infrared light but can block visible light.
8. frame according to claim 1 is characterized in that: between the long limit and injection-moulded housing edge in aluminium section bar cross section, described U font cross section, leave the groove that the cover glass plate is installed.
9. frame according to claim 1 is characterized in that: described injection-moulded housing uses opaque made; Opening direction in described aluminium section bar U font cross section; be that infrared emission is or/and between the long limit and injection-moulded housing edge in the place ahead of receiving tube, aluminium section bar cross section; be equipped with bar shaped, can be by infrared light but optical material that can block visible light, and constitute the groove that the cover glass plate is installed between described bar shaped optical material and the aluminium section bar.
10. according to Claim 8 or 9 described frames, it is characterized in that: in the groove of described installation cover glass plate, also have a groove that is used for packing matcrial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201906998U CN201127144Y (en) | 2007-12-11 | 2007-12-11 | Frame for infrared touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201906998U CN201127144Y (en) | 2007-12-11 | 2007-12-11 | Frame for infrared touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201127144Y true CN201127144Y (en) | 2008-10-01 |
Family
ID=40000606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201906998U Expired - Lifetime CN201127144Y (en) | 2007-12-11 | 2007-12-11 | Frame for infrared touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201127144Y (en) |
Cited By (8)
| 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 |
| CN103631330A (en) * | 2012-08-23 | 2014-03-12 | 上海品奇数码科技有限公司 | Double-color extrusion plastic infrared touch frame |
| US9046964B2 (en) | 2011-10-27 | 2015-06-02 | Beijing Irtouch Systems Co., Ltd | Frame component for infrared touch screen and 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 |
| CN108472848A (en) * | 2015-08-31 | 2018-08-31 | 统实业有限公司 | Injection forming equipment and method |
| CN111880684A (en) * | 2020-07-29 | 2020-11-03 | 深圳市康冠商用科技有限公司 | Infrared touch screen frame for installing functional components and display terminal thereof |
| CN112558805A (en) * | 2019-09-26 | 2021-03-26 | 广州视源电子科技股份有限公司 | Indent display module, touch module and mutual smart machine |
| EP3968137A4 (en) * | 2020-07-29 | 2022-08-17 | Shenzhen Ktc Commercial Display Technology Co., Ltd. | Infrared touch screen bezel for mounting functional assembly, and display terminal comprising same |
-
2007
- 2007-12-11 CN CNU2007201906998U patent/CN201127144Y/en not_active Expired - Lifetime
Cited By (9)
| 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 |
| US9046964B2 (en) | 2011-10-27 | 2015-06-02 | Beijing Irtouch Systems Co., Ltd | Frame component for infrared touch screen and infrared touch screen |
| CN103631330A (en) * | 2012-08-23 | 2014-03-12 | 上海品奇数码科技有限公司 | Double-color extrusion plastic infrared touch frame |
| CN108472848A (en) * | 2015-08-31 | 2018-08-31 | 统实业有限公司 | Injection forming equipment and method |
| 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 |
| CN112558805A (en) * | 2019-09-26 | 2021-03-26 | 广州视源电子科技股份有限公司 | Indent display module, touch module and mutual smart machine |
| CN111880684A (en) * | 2020-07-29 | 2020-11-03 | 深圳市康冠商用科技有限公司 | Infrared touch screen frame for installing functional components and display terminal thereof |
| CN111880684B (en) * | 2020-07-29 | 2021-05-04 | 深圳市康冠商用科技有限公司 | Infrared touch screen frame for installing functional components and display terminal thereof |
| EP3968137A4 (en) * | 2020-07-29 | 2022-08-17 | Shenzhen Ktc Commercial Display Technology Co., Ltd. | Infrared touch screen bezel for mounting functional assembly, and display terminal comprising 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: B, building 4, block M8, East Jiuxianqiao Road, Beijing, Chaoyang District, 100016 Patentee after: Beijing UNITOP New Technology Co., Ltd. Address before: B, building 4, block M8, East Jiuxianqiao Road, Beijing, Chaoyang District, 100016 Patentee before: UNITOP New Technology Co., Ltd. |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Guangzhou Hua Xin Electronic Science and Technology Co., Ltd. Assignor: Beijing UNITOP New Technology Co., Ltd. Contract record no.: 2014990000925 Denomination of utility model: Frame structure for infrared touch screen Granted publication date: 20081001 License type: Common License Record date: 20141212 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Guangzhou Hua Xin Electronic Science and Technology Co., Ltd. Assignor: Beijing UNITOP New Technology Co., Ltd. Contract record no.: 2014990000925 Date of cancellation: 20160831 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081001 |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing UNITOP New Technology Co., Ltd. Document name: Notification of Expiration of Patent Right Duration |