CN208335173U - Capacitive touch screen equipment immunity experiment touch screen key detection device - Google Patents
Capacitive touch screen equipment immunity experiment touch screen key detection device Download PDFInfo
- Publication number
- CN208335173U CN208335173U CN201820885146.2U CN201820885146U CN208335173U CN 208335173 U CN208335173 U CN 208335173U CN 201820885146 U CN201820885146 U CN 201820885146U CN 208335173 U CN208335173 U CN 208335173U
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- touch screen
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- screen equipment
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Abstract
The utility model relates to a kind of capacitive touch screen equipment immunity experiment touch screen key detection devices, sucker is pull-in on the touch screen key position of touch-screen equipment, contact is coated in sucker, the part that the contact is located at outside sucker is set with casing, the casing is ferrite bead, the contact connects metal plate by outer conductor, and switch is provided on outer conductor, and the contact is conductive rubber contact.Switch is the time relay.Outer conductor is enameled wire.By sucker suction at the touch screen key position of touch-screen equipment, make the conductive rubber contact touch screen key position in sucker, conductive rubber contact passes through electric wire connection switch and metal plate, after switch connection, conductive rubber contact, outer conductor and metal plate form coupled capacitor, and contact point very little electric current is sucked away, and simulation finger touches on the touchscreen, it solves the problems, such as screen protection and the detection to touch screen key, guarantees that touch-screen equipment radio frequency electromagnetic field radiation immunity experiment result is accurate.
Description
Technical field:
The utility model belongs to electromagnetic compatibility test equipment technical field, and in particular to a kind of capacitive touch screen equipment is anti-
Degree of disturbing test touch screen key detection device.
Background technique:
Modern society is flooded with electromagnetism noise, therefore all kinds of electricity with industry and the information industry development, ambient enviroment everywhere
Sub- equipment needs to carry out electromagnetic compatibility testing (EMC).Electromagnetic compatibility testing refers to equipment or system in its electromagnetic environment
The operation that meets the requirements does not generate intolerable electromagnetic interference capability to any equipment in its environment.Electromagnetic compatibility testing
Comprising electromagnetic immunity test (EMS) and electromagnetic disturbance test (EMI), the electromagnetism noise that is full of for our ambient enviroments is to setting
The standby test influenced belongs to electromagnetic immunity test (EMS).Electromagnetic immunity tests important one i.e. radio frequency electromagnetic field in (EMS)
Radiated immunity test (RS), this test need to carry out in the anechoic chamber, for meeting international and national standard.
Anechoic chamber, is to meet the wall of indices requirement to post the confined space of absorbing material in simple terms.The electric wave
Having in darkroom can emit in 80MHz~2000MHz frequency range or the higher radio-frequency radiation source of frequency, and tested equipment is in electricity
Be switched on operation in wave darkroom, simulates real work scene, and whether observation test item can correctly be held under strong electromagnetic radiation environment
Row corresponding operating.
But for equipment under test with for capacitive touch screens, touch screen key whether can normal use be also tested
One of the test item of equipment radio frequency electromagnetic field radiation immunity experiment, still, the electromagnetic radiation in anechoic chamber, hurt human body
Evil greatly, therefore, when carrying out radio frequency electromagnetic field radiation immunity experiment to equipment under test, forbids personnel to enter anechoic chamber,
It is interior, but for touch screen equipment under test, operator cannot be introduced into anechoic chamber, operation touch screen, it just can not be to equipment under test
Touch screen key tested.
Moreover, touch-screen equipment generally all has screensaver functions, equipment will appear screen protection or automatic pass after standby a few minutes
Machine usually suggests that producer changes program, will shield at present when carrying out radio frequency electromagnetic field radiation immunity experiment for touch-screen equipment
Function is protected to cancel.But some import equipments, change program are extremely difficult.Even if changing program control by-pass screensaver functions, program
After change, the program of the program and real work in touch-screen equipment when test be it is different, be not strictly speaking
With a product.It is unable to working condition of the actual response touch-screen equipment in high intensity electromagnetic field, seriously affects test result
Accuracy.
Currently, touch-screen equipment in the market is capacitive touch screen mostly, capacitive touch screen is being touched when finger touch
When on screen, human body and touch screen surface are formed with a coupled capacitor, and for high-frequency current, capacitor is direct conductor, in
It is the electric current that finger siphons away a very little from contact point.This electric current is flowed out from the electrode on the quadrangle of touch screen, and is flowed
Electric current through this four electrodes is directly proportional at a distance from finger to quadrangle, and controller passes through the accurate meter to this four current ratios
It calculates, obtains the position of touch point.
Utility model content:
In conclusion in order to overcome the shortcomings of prior art problem, the utility model provides a kind of capacitive touch screens and sets
Standby immunity experiment touch screen key detection device, it is the touch screen key position by sucker suction in touch-screen equipment, makes to inhale
Conductive rubber contact touch screen key position in disk, conductive rubber contact pass through electric wire connection switch and metal plate, switch
Before connection, the capacitor between conductive rubber contact and touch screen is smaller；After switch connection, conductive rubber contact passes through electric wire and metal
Plate connection, the capacitor between conductive rubber contact and touch screen become larger.By changing the capacitor between conductive rubber contact and touch screen
Value guarantees touch-screen equipment radio frequency to simulate finger pressing touch screen key to solve the problems, such as screen protection and the detection to touch screen key
Electromagnetic field radiation immunity experiment result is accurate.
In order to solve the above technical problems, the technical solution of the utility model is achieved in that
A kind of capacitive touch screen equipment immunity experiment touch screen key detection device, in which: including column, positioning net
Touch-screen equipment to be tested is arranged in plate, sucker, contact, casing, inside conductor, outer conductor, switch and metal plate, the column
Around, column is stud, is provided with clamping nut, the column is installed in the mesh of positioning web plate, and passes through folder
Hold nut clamping position web plate, touch screen to be tested is placed below positioning web plate, the mesh position of the positioning web plate with
The touch screen key position of touch-screen equipment to be tested is corresponding, and the sucker is pull-in on the touch screen key position of touch-screen equipment, institute
Casing is provided on the sucker stated, the casing passes through the mesh of positioning web plate, and sucker inner top is provided with contact, described
The part that contact is located at outside sucker is installed in casing, and the casing is ferrite bead, and the contact in the casing is logical
Inside conductor connection socket is crossed, the socket is located at the top of casing, and the socket connects outer conductor by conductive pin, outside
Conducting wire connects metal plate, and switch is provided on outer conductor, and the contact is conductive contact.
Further, the switch is electromagnetic relay.
Further, the inside conductor and outer conductor are the enameled wire that diameter is less than 0.5mm.
Further, the contact is conductive rubber contact.
Further, the column lower end supports sucker, and the column is set by support sucker with touch screen to be tested
Standby shell adsorbs connection.
Further, the shell of the column lower end and touch-screen equipment to be tested bonds；Or column lower end and
Magnetic link block, the shell magnetic absorption company of column and touch-screen equipment to be tested are set on the shell of touch-screen equipment to be tested
It connects；Or the shell binding of column and touch-screen equipment to be tested connects；Or it is set on the shell of touch-screen equipment to be tested
Threaded hole is set, the shell of column lower end and touch-screen equipment to be tested is bolted.
Further, the column is non-conductive column, and the positioning web plate is transparent non-conductive web plate, described
Clamping nut is non-conductive nut.
The utility model has the following beneficial effects:
1, the utility model is the touch screen key position by sucker suction in touch-screen equipment, makes the conductive rubber in sucker
Contact touch screen key position, conductive rubber contact is by electric wire connection switch and metal plate, before switch connection, conductive rubber
Capacitor between contact and touch screen is smaller；After switch connection, conductive rubber contact is connected to by electric wire with metal plate, conductive rubber
Capacitor between contact and touch screen becomes larger.By changing the capacitance between conductive rubber contact and touch screen, come simulate finger by
Touch screen key is pressed, to solve the problems, such as screen protection and the detection to touch screen key, guarantees the anti-interference of touch-screen equipment radio frequency electromagnetic field radiation
It is accurate to spend test result.
2, the switch of the utility model be electromagnetic relay, by microcontroller control electromagnetic relay switch state and
Switch time, switch time can be adjusted by program, to adapt to different key and test needs.Due to manual operation touch screen
When, have time of contact and disengaging time and number of operations, therefore, by microcontroller set electromagnetic relay disconnection with close
Time and corresponding number are closed, simulating hand operation is carried out, guarantee test result accuracy passes through the continuous point of the utility model
Touch screen is hit, touch screen screen protection can be prevented.
3, the setting of the conductive rubber contact of the utility model, conductive rubber not only it is conductive can, but also with rubber
Flexibility, simulation finger touch touch screen, protect touch screen.According to the principle of touch screen, the contact of metal material with touch screen key
Contact, also can be realized touch screen effect, and still, metal contact is easy to damage touch-screen equipment, therefore the utility model is using flexible
Conductive rubber contact.
4, the outer conductor of the utility model is less than the enameled wire of 0.5mm using diameter, and outer conductor diameter is very thin, thin outer conductor
High-impedance state is under high frequency state, it can be to avoid High-frequency Interference.The setting of the casing of ferrite bead can be filtered further
Except high-frequency signal, avoids high-frequency signal from being transmitted on touch screen by conductive rubber contact, avoid high-frequency signal to test result
It influences.
5, the utility model positions web plate by upright supports, positions the mesh of web plate and the touch screen of touch-screen equipment to be tested
Key position is corresponding, and casing tube wearing is positioned in the mesh of positioning web plate by position of the positioning mesh to casing and sucker,
Accurate positioning, the different touch screen keys that can be different to touch-screen equipment for adjusting the mesh of casing tube wearing are tested, accurate positioning,
Position is easy to adjust.
6, the utility model structure is simple, easy to use, operation is easy, settable automatic control system, by controlling automatically
System control switch opening and closing processed, in the anechoic chamber, of high strong electromagnetic radiation, without human intervention, it is ensured that when touch-screen equipment is long
Between not screen protection, while can also the touch screen key to touch-screen equipment carry out inspection test, to guarantee touch-screen equipment radio frequency electromagnetic field
Radiation immunity experiment result is accurate.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of the utility model
Sucker 1；Contact 2；Casing 3；Outer conductor 4；Switch 5；Metal plate 6；Column 7；Position web plate 8；Clamp nut 9；It leads
Electric mortiser needle 10；Inside conductor 11；Socket 12；Support sucker 13；Touch-screen equipment 14.
Fig. 2 is the portion A enlarged diagram in the utility model Fig. 1
Casing 3；Outer conductor 4；Position web plate 8；Conductive pin 10；Inside conductor 11；Socket 12.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As shown in Figure 1 and Figure 2, a kind of capacitive touch screen equipment immunity experiment touch screen key detection device, including column
7, web plate 8, sucker 1, contact 2, casing 3, inside conductor 11 are positioned；Outer conductor 4, switch 5 and metal plate 6, the column 7 are arranged
Around touch-screen equipment 14 to be tested, 7 lower end of column supports sucker 13, and the column 7 passes through support sucker 13
It adsorbs and connects with the shell of touch-screen equipment 14 to be tested.Column 7 is stud, is provided with clamping nut 9, the column
7 are installed in the mesh of positioning web plate 8, and by clamping 9 clamping position web plate 8 of nut, touch screen to be tested is placed on positioning
The mesh position of 8 lower section of web plate, the positioning web plate 8 is corresponding with the touch screen key position of touch-screen equipment 14 to be tested, institute
The sucker 1 stated is pull-in on the touch screen key position of touch-screen equipment, and casing 3 is provided on the sucker 1, and the casing 3 is worn
The mesh of positioning web plate 8 is crossed, 1 inner top of sucker is provided with contact 2, and the part that the contact 2 is located at outside sucker 1 is installed on set
In pipe 3, the casing 3 is ferrite bead, and the contact 2 in the casing 3 connects socket 12 by inside conductor 11, described
Socket 12 be located at the top in casing 3, the socket 12 connects outer conductor 4 by conductive pin 10, and outer conductor 4 connects gold
Belong to plate 6, switch 5 is provided on outer conductor 4, the contact 2 is conductive rubber contact 2.The switch 5 is electromagnetism relay
Device.The inside conductor 11 and outer conductor 4 is the enameled wire that diameter is less than 0.5mm.The column 7 is non-conductive column, institute
The positioning web plate 8 stated is transparent non-conductive web plate, and the clamping nut 9 is non-conductive nut.
In use, the touch-screen equipment 14 tested will be needed to be placed in anechoic chamber, it will be under column 7 by support sucker 13
The shell of end and touch-screen equipment to be tested, which adsorbs, to be connected, and then will be positioned web plate 8 and is installed on column 7 and by clamping nut
9 clampings, casing 3 are installed in the mesh of positioning web plate 8, and the sucker 1 of 3 lower end of casing adsorbs the touching for being connected to touch-screen equipment 14
Shield key position, conductive rubber contact 2 contact touch screen, then by PLC controller control multiple electromagnetic relays closure and
It disconnects, after the completion of connection, testing crew leaves anechoic chamber, and PLC controller makes 5 closing or opening of switch by timing, when opening
5 closures are closed, metal plate 6 is connected to by outer conductor 4 with conductive rubber contact 2, on the touch screen of 2 contact position of conductive rubber contact very
Small electric current is siphoned away by conductive rubber contact 2 passes to metal plate 6, forms coupled capacitor, and simulation finger touches touch screen.Observation
Touch-screen equipment, if touching screen display respective reaction at this time, then it represents that the touch screen key can in high strong electromagnetic radiation
Normal use.
In actual use, the shell of 7 lower end of column and touch-screen equipment 14 to be tested bonds the utility model；
Or magnetic link block, column 7 and touching to be tested are set on the lower end of column 7 and the shell of touch-screen equipment 14 to be tested
The shell magnetic absorption of screen equipment 14 connects；Or the shell binding of column 7 and touch-screen equipment 14 to be tested connects；Or
Threaded hole is set on the shell of touch-screen equipment 14 to be tested, and 7 lower end of column and the shell of touch-screen equipment 14 to be tested pass through
It is bolted.
The utility model can install casing 3 in multiple mesh of positioning web plate 8 as needed in actual use respectively,
The lower end of each casing 3 is respectively provided with sucker 1, and contact 2 is respectively provided in each casing 3, and each contact 2 is connected by inside conductor 11
Socket 12, each socket 12 correspond to a conductive pin 11, and each conductive pin 11 connects metal plate 6 by outer conductor 4,
It is respectively provided with switch 5 on each outer conductor 4, multiple touch screen keys of touch-screen equipment sequentially or simultaneously can be surveyed simultaneously in this way
Examination, to improve testing efficiency.
The utility model in actual use, can as needed connect the shell of column 7 and touch-screen equipment 14 to be tested
Connect, also can according to need and touch-screen equipment 14 to be tested is placed on testing stand, then by the column of the utility model 7 with
Testing stand connection.
It is noted that embodiment described above is the affiliated skill to the illustrative and not limiting of technical solutions of the utility model
The equivalent replacement of art field those of ordinary skill or the other modifications made according to the prior art, as long as practical not new beyond this
The thinking and range of type technical solution, should be included within interest field required by the utility model.
Claims (7)
1. a kind of capacitive touch screen equipment immunity experiment touch screen key detection device, it is characterised in that: including column (7),
Position web plate (8), sucker (1), contact (2), casing (3), outer conductor (4), switch (5) and metal plate (6), the column
(7) it is arranged in around touch-screen equipment to be tested, column (7) is stud, is provided with clamping nut (9), the column
(7) it is installed in the mesh of positioning web plate (8), and by clamping nut (9) clamping position web plate (8), touch screen to be tested is put
It sets below positioning web plate (8), the touch screen of the mesh position of the positioning web plate (8) and touch-screen equipment to be tested presses key mapping
Correspondence is set, the sucker (1) is pull-in on the touch screen key position of touch-screen equipment, and the sucker is provided with casing on (1)
(3), the casing (3) passes through the mesh of positioning web plate (8), and sucker (1) inner top is provided with contact (2), the contact
(2) it is located at the part of sucker (1) outside to be installed in casing (3), the casing (3) is ferrite bead, the casing (3)
For interior contact (2) by inside conductor (11) connection socket (12), the socket (12) is located at the top in casing (3), described
Socket (12) by conductive pin (10) connection outer conductor (4), outer conductor (4) connects metal plate (6), and outer conductor sets on (4)
It is equipped with switch (5), the contact (2) is conductive contact.
2. capacitive touch screen equipment immunity experiment touch screen key detection device according to claim 1, feature exist
In: the switch (5) is electromagnetic relay.
3. capacitive touch screen equipment immunity experiment touch screen key detection device according to claim 1, feature exist
In: the inside conductor (11) and outer conductor (4) is the enameled wire that diameter is less than 0.5mm.
4. capacitive touch screen equipment immunity experiment touch screen key detection device according to claim 1, feature exist
In: the contact (2) is conductive rubber contact.
5. capacitive touch screen equipment immunity experiment touch screen key detection device according to claim 1, feature exist
In: column (7) lower end supports sucker (13), and the column (7) passes through support sucker (13) and touch screen to be tested
The shell of equipment adsorbs connection.
6. capacitive touch screen equipment immunity experiment touch screen key detection device according to claim 1, feature exist
In: the shell of the column (7) and touch-screen equipment to be tested bonds；Or lower end and touching to be tested in column (7)
Magnetic link block is set on the shell of screen equipment, and column (7) is connect with the shell magnetic absorption of touch-screen equipment to be tested；Or
The shell of column (7) and touch-screen equipment to be tested, which is bound, to be connected；Or spiral shell is set on the shell of touch-screen equipment to be tested
Pit, column (7) lower end and the shell of touch-screen equipment to be tested are bolted.
7. capacitive touch screen equipment immunity experiment touch screen key detection device according to claim 1, feature exist
In: the column (7) is non-conductive column, and the positioning web plate (8) is transparent non-conductive web plate, the clamping nut
It (9) is non-conductive nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820885146.2U CN208335173U (en) | 2018-06-08 | 2018-06-08 | Capacitive touch screen equipment immunity experiment touch screen key detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820885146.2U CN208335173U (en) | 2018-06-08 | 2018-06-08 | Capacitive touch screen equipment immunity experiment touch screen key detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208335173U true CN208335173U (en) | 2019-01-04 |
Family
ID=64773882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820885146.2U Withdrawn - After Issue CN208335173U (en) | 2018-06-08 | 2018-06-08 | Capacitive touch screen equipment immunity experiment touch screen key detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208335173U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108509307A (en) * | 2018-06-08 | 2018-09-07 | 河南省计量科学研究院 | Capacitive touch screens equipment radio frequency electromagnetic field radiation immunity experiment touch screen key detection device |
| CN112084084A (en) * | 2020-09-09 | 2020-12-15 | 维沃移动通信有限公司 | Electronic equipment, detection method and device |
-
2018
- 2018-06-08 CN CN201820885146.2U patent/CN208335173U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108509307A (en) * | 2018-06-08 | 2018-09-07 | 河南省计量科学研究院 | Capacitive touch screens equipment radio frequency electromagnetic field radiation immunity experiment touch screen key detection device |
| CN108509307B (en) * | 2018-06-08 | 2023-04-25 | 河南省计量科学研究院 | Touch screen key detection device for capacitive touch screen equipment radio frequency electromagnetic field radiation immunity test |
| CN112084084A (en) * | 2020-09-09 | 2020-12-15 | 维沃移动通信有限公司 | Electronic equipment, detection method and device |
| CN112084084B (en) * | 2020-09-09 | 2022-10-25 | 维沃移动通信有限公司 | Electronic equipment, detection method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190104 Effective date of abandoning: 20230425 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190104 Effective date of abandoning: 20230425 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |