CN208752596U - Infrared touch screen equipment electromagnetism interference structure - Google Patents
Infrared touch screen equipment electromagnetism interference structure Download PDFInfo
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- CN208752596U CN208752596U CN201821713645.XU CN201821713645U CN208752596U CN 208752596 U CN208752596 U CN 208752596U CN 201821713645 U CN201821713645 U CN 201821713645U CN 208752596 U CN208752596 U CN 208752596U
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- touch screen
- infrared touch
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Abstract
Infrared touch screen equipment electromagnetism interference structure.The utility model provides infrared touch screen equipment electromagnetism interference structure, the utility model is subject to the weak part of electromagnetic interference for infrared touch screen equipment, pass through cut-off waveguide device, make it that infrared ray be allowed to penetrate and shield the following Electromagnetic Interference of superhigh frequency band, anti- external electromagnetic interference function is realized under the premise of not influencing infrared emission receiver operation performance, the whole anti-electromagnetic interference capability for effectively improving infrared touch screen equipment can be widely applied to the electromagnetic protection design and strengthening reconstruction of infrared touch screen equipment.
Description
Technical field
The utility model relates to infrared touch to show that installation electromagnetical protects field, and in particular to anti-to infrared touch screen equipment
Electromagnetic interference structure.
Background technique
Infrared technology touch screen is to pass through transmitting, reception and sense the display equipment that infrared ray realizes manipulation.It is
It is made of the Infrared emitting and receiving sensing element on touch screen outline border, these elements form infrared ray in screen surface
The object (such as finger, stylus) of detection network, touch control operation can change the infrared ray of contact, and then be converted to contact seat
Cursor position and the response for realizing operation.On infrared-type touch screen, the circuit board arrangement of four side of screen arrangement has infrared emission
Pipe and infrared receiving tube, are correspondingly formed the infrared ray matrix intersected anyhow.
Due to the continuous development of infrared touch technology, application is further extensive, aobvious except the information such as computer monitor are usually used in
Show equipment, also expose again and again in the industries such as industry control and household electrical appliances, and with the input equipments such as mouse, handwriting pad form substitution and it is competing
The relationship striven.
Existing overwhelming majority infrared touch screen equipment is more satisfied with the Functional Requirements such as touch control operation, is not directed to electromagnetism
Protection requirements realize whole Anti-interference Design.
Utility model content
In order to overcome the shortcomings of background technique, the utility model provides broadband light transmission and shields Material cladding structure, mainly
Solve the problems, such as that present infrared touch screen equipment can not shield electromagnetic interference well.
The technical scheme adopted by the utility model is
Infrared touch screen equipment electromagnetism interference structure, including shell, the shell is equipped with display screen, on the shell
It is also correspondingly provided with first boss and second boss, the first boss and second boss are correspondingly arranged at the two sides of the display screen,
Infrared emission head is equipped in the first boss, the second boss is interior to be correspondingly provided with receiver with the infrared emission head, institute
Second boss is stated equipped with cut-off waveguide device, the cut-off waveguide device is equipped with perforative the passed through for infrared-ray
One through-hole, the diameter of the first through hole are 0.08cm ~ 0.15cm, and the length of the first through hole is 0.7cm ~ 1.5cm.
The diameter of the first through hole is 0.1cm, length 1cm.
The cut-off waveguide device is welded or is wholely set with the second boss.
Organic resin layer is filled in the first through hole.
It is equipped with wiring board in the shell, is connected with several conducting wires on the wiring board, the conducting wire outer wall is coated with screen
Cable is covered, the shell, which is equipped with, is used for the second through-hole that conducting wire stretches out, in the shielded cable outer wall and second through-hole
Wall welding.
It is equipped with wiring board in the shell, several conducting wires are connected on the wiring board, the shell is equipped with for leading
The second through-hole that line stretches out, the housing exterior walls are welded with metal catheter, and second through-hole is set to the metal catheter inner cavity.
Transparent shielding glass is additionally provided on the display screen, the Transparent shielding glass is successively arranged glass base from top to bottom
Material layer, functional film layer and glass substrate layer.
Transparent shielding glass two sides are equipped with fixed frame, the fixed frame and the case weld.
The beneficial effects of the utility model are: the utility model provides infrared touch screen equipment electromagnetism interference structure, this
The weak part that utility model is subject to electromagnetic interference for infrared touch screen equipment makes its permission by cut-off waveguide device
Infrared ray penetrates and shields the following Electromagnetic Interference of superhigh frequency band, under the premise of not influencing infrared emission receiver operation performance
It realizes anti-external electromagnetic interference function, effectively improves the whole anti-electromagnetic interference capability of infrared touch screen equipment, can answer extensively
Electromagnetic protection design and strengthening reconstruction for infrared touch screen equipment.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of the utility model one embodiment.
Fig. 2 is the display screen structure schematic diagram of the utility model.
Fig. 3 is the scheme of installation of the Transparent shielding glass of the utility model.
Fig. 4 is the enlarged diagram in Fig. 1 at A.
Fig. 5 is the enlarged diagram in Fig. 1 at B.
Fig. 6 is the stereoscopic schematic diagram of cut-off waveguide device.
Fig. 7 is infrared emission receiver frequency response schematic diagram.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing: infrared touch screen equipment electromagnetism interference structure, packet
Shell 1 is included, the shell is equipped with display screen 2, it is characterised in that: first boss 31 and second are also correspondingly provided on the shell
Boss 32, the first boss and second boss are correspondingly arranged at the two sides of the display screen, are equipped in the first boss infrared
Emitting head 311, the second boss is interior to be correspondingly provided with receiver 321 with the infrared emission head, and the second boss is equipped with
Cut-off waveguide device 33, the cut-off waveguide device 33 are equipped with the perforative first through hole 331 passed through for infrared-ray, institute
The diameter for stating first through hole is 0.08cm ~ 0.15cm, and the length of the first through hole is 0.7cm ~ 1.5cm.
Further, the diameter of the first through hole is 0.1cm, length 1cm.As shown in fig. 6, infrared emission receiver
Waveguide type protection module is based primarily upon the low-frequency cutoff effect of waveguide, before design cut-off waveguide device is placed in infrared emission receiver
End, one of Design of Structural parameters be diameter 0.1cm, length 1cm, frequency response signal be illustrated in Fig. 7, make its permit
Perhaps infrared ray penetrates and shields the following Electromagnetic Interference of superhigh frequency band, in the premise for not influencing infrared emission receiver operation performance
It is lower to realize anti-external electromagnetic interference function.As shown in fig. 6, cut-off waveguide device is using organic resin filling first in protection module
Through-hole, the environmental suitabilities such as waterproof and dustproof of elevating protective device.
In the present embodiment, as shown in figure 4, the cut-off waveguide device 33 is welded with the second boss or integrally set
It sets.Whole electrical bonding safeguard procedures are then completely electrically connected by the various modes such as welding, crimping, to prevent slit from revealing.
In the present embodiment, as shown in figure 5, being equipped with wiring board 4 in the shell, several lead is connected on the wiring board
Line 41, the conducting wire outer wall are coated with shielded cable 42, and the shell is equipped with the second through-hole 43 stretched out for conducting wire, described
Shielded cable outer wall and second through-hole wall weld.
In the present embodiment, as shown in figure 5, being equipped with wiring board 4 in the shell, several lead is connected on the wiring board
Line 41, the shell are equipped with the second through-hole 43 stretched out for conducting wire, and the housing exterior walls are welded with metal catheter 44, described
Second through-hole is set to the metal catheter inner cavity.Two ways can be used in the anti-interference protection of conducting wire, first is that shielding wire substitution is normal
Electric wire is advised, and shielding crust is made to be connected with apparatus casing；Another kind is metal hose poling mode, metal hose and apparatus casing
Welding, and the power supply line for penetrating through shell and signal wire are encased, promote the anti-electromagnetic interference capability of penetrated wire.
In the present embodiment, as shown in Fig. 2, being additionally provided with Transparent shielding glass 5 on the display screen, the Transparent shielding glass
Glass is successively arranged glass substrate layer 51, functional film layer 52 and glass substrate layer 51 from top to bottom.Preferably, using strong light
High thoroughly strong screen is imitated functional film layer and is bonded entirely with display panel by visually/electromagnetic shielding bonding techniques, to eliminate display screen
Intermediate air layer and to greatest extent reduce surface reflectivity be technology focus, only increasing seldom thickness, do not changing display screen knot
Structure under the premise of not increasing energy consumption, effectively realizes display panel clear readable, high transparency and strong shield effectiveness under strong light.
The mechanical performance, waterproof performance and heat dissipation performance of display screen are greatly promoted simultaneously；Various adverse circumstances are suitable for, and are effectively extended
The service life of display screen.The high thoroughly strong functional film layer of effect of shielding uses two-sided bound edge terminations, and welds in fact with apparatus casing
Now complete electrical connection.Preferably, functional film layer selects directionless grid.Be specifically as follows select line width less than 10 μm,
Mesh number is greater than 180 directionless random grid.The aperiodicity arrangement of random grid can eliminate Moire fringe, have splendid
Light transmission and low frequency electromagnetic shield effectiveness.
In the present embodiment, as shown in figure 3, Transparent shielding glass two sides be equipped with fixed frame 55, the fixed frame with
The case weld.
In the description of the present invention, it should be understood that term " length ", " width ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached
Orientation or positional relationship shown in figure, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of utility model.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
The embodiment being described with reference to the drawings is exemplary, it is intended to for explaining the utility model, and should not be understood as pair
The limitation of the utility model.Embodiment is not construed as limitations of the present invention, but any spirit based on the utility model
Improvements introduced should be all within the protection scope of the utility model.
Claims (8)
1. infrared touch screen equipment electromagnetism interference structure, including shell (1), the shell is equipped with display screen (2), feature
It is: is also correspondingly provided with first boss (31) and second boss (32), the first boss and second boss pair on the shell
The two sides of the display screen should be set to, be equipped with infrared emission head (311) in the first boss, in the second boss with it is described
Infrared emission head is correspondingly provided with receiver (321), and the second boss is equipped with cut-off waveguide device (33), the cut-off waveguide
Device (33) is equipped with the perforative first through hole (331) passed through for infrared-ray, and the diameter of the first through hole is
0.08cm ~ 0.15cm, the length of the first through hole are 0.7cm ~ 1.5cm.
2. infrared touch screen equipment electromagnetism interference structure according to claim 1, it is characterised in that: the first through hole
Diameter be 0.1cm, length 1cm.
3. infrared touch screen equipment electromagnetism interference structure according to claim 1, it is characterised in that: the cut-off waveguide
Device (33) is welded or is wholely set with the second boss.
4. infrared touch screen equipment electromagnetism interference structure according to claim 1, it is characterised in that: the first through hole
It is interior to be filled with organic resin layer.
5. infrared touch screen equipment electromagnetism interference structure according to claim 1, it is characterised in that: set in the shell
Have wiring board (4), be connected on the wiring board several conducting wires (41), the conducting wire outer wall is coated with shielded cable (42), institute
It states shell and is equipped with the second through-hole (43) stretched out for conducting wire, the shielded cable outer wall and second through-hole wall weld
It connects.
6. infrared touch screen equipment electromagnetism interference structure according to claim 1, it is characterised in that: set in the shell
Have wiring board (4), be connected on the wiring board several conducting wires (41), the shell is equipped with second stretched out for conducting wire and leads to
Hole (43), the housing exterior walls are welded with metal catheter (44), and second through-hole is set to the metal catheter inner cavity.
7. infrared touch screen equipment electromagnetism interference structure according to claim 1, it is characterised in that: on the display screen
It is additionally provided with Transparent shielding glass (5), the Transparent shielding glass is successively arranged glass substrate layer (51), functional film layer from top to bottom
(52) and glass substrate layer (51).
8. infrared touch screen equipment electromagnetism interference structure according to claim 7, it is characterised in that: the Transparent shielding
Glass two sides are equipped with fixed frame (55), the fixed frame and the case weld.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821713645.XU CN208752596U (en) | 2018-10-23 | 2018-10-23 | Infrared touch screen equipment electromagnetism interference structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821713645.XU CN208752596U (en) | 2018-10-23 | 2018-10-23 | Infrared touch screen equipment electromagnetism interference structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208752596U true CN208752596U (en) | 2019-04-16 |
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ID=66085967
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821713645.XU Active CN208752596U (en) | 2018-10-23 | 2018-10-23 | Infrared touch screen equipment electromagnetism interference structure |
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| CN (1) | CN208752596U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109062454A (en) * | 2018-10-23 | 2018-12-21 | 秦皇岛波盾电子有限公司 | Infrared touch screen equipment electromagnetism interference structure |
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2018
- 2018-10-23 CN CN201821713645.XU patent/CN208752596U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109062454A (en) * | 2018-10-23 | 2018-12-21 | 秦皇岛波盾电子有限公司 | Infrared touch screen equipment electromagnetism interference structure |
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