CN203909774U - Trigger type contact device - Google Patents
Trigger type contact device Download PDFInfo
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- CN203909774U CN203909774U CN201420305134.XU CN201420305134U CN203909774U CN 203909774 U CN203909774 U CN 203909774U CN 201420305134 U CN201420305134 U CN 201420305134U CN 203909774 U CN203909774 U CN 203909774U
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- conductive contact
- trigger
- touch screen
- capacitance touch
- switching device
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Abstract
The utility model provides a trigger type contact device which is arranged on the surface of a capacitance touch screen. The trigger type contact device comprises a carrier, a conductive contact, a switch device and a drive circuit. The lower surface of the carrier is provided with a fixing piece used for being fixed to the surface of the capacitance touch screen. The conductive contact is arranged on the lower surface of the carrier and corresponds to the capacitance touch screen. The switch device comprises one or the combination of an electromagnetic type relay and a mechanical relay, the switch device is connected with the conductive contact and is further connected with a capacitive device, the connection of the switch device enables the capacitive device to be connected with the conductive contact so that the conductive contact can have a capacitive characteristic, and thus the capacitance touch screen is triggered, and the disconnection of the switch device enables the electrical isolation between the conductive contact and the capacitive device to be achieved so that the capacitive characteristic of the conductive contact can be eliminated. The drive circuit is connected with the switch device, is connected with an external communication interface, and is used for receiving electric trigger signals from the external communication interface to drive the switch device to be connected and triggering the capacitance touch screen through the external electric trigger signals to achieve the non-manual operation on the capacitance touch screen.
Description
Technical field
The utility model relates to touch technology field, particularly relates to a kind of trigger-type contact making device.
Background technology
Existing touch-screen touch control manner is mostly in person to cause screen area capacitance to change with finger or the object such as conductive stylus touching screen by people, and needs unartificial mode to trigger in some particular application, but such technology and product are comparatively short of at present.
Summary of the invention
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of trigger-type contact making device, solves the problem of the unartificial triggering mode shortcoming of existing touch-screen.
For realizing above-mentioned target and other related objectives, the utility model provides a kind of trigger-type contact making device, is located at capacitance touch screen surfaces, and described trigger-type contact making device comprises: holder, and lower surface is provided with for the fixture that is fixed to capacitance touch screen surfaces; Conductive contact, is located at described holder lower surface and corresponding to described capacitance touch screen; Switching device, comprise a kind of or combination in electromagnetic type relay and mechanical relay, described switching device connects described conductive contact and is also connected with a capacitive device, the conducting of described switching device make described capacitive device and conductive contact conducting so that described conductive contact with capacitance characteristic, thereby trigger described capacitance touch screen; The shutoff of described switching device makes between conductive contact and capacitive device electrical isolation to eliminate the capacitance characteristic of described conductive contact; Driving circuit, connect described switching device and be connected with external communication interface, trigger electric signal with switching device described in driving conducting for receiving from described external communication interface, described driving circuit makes described switching device turn-off in the time not receiving described triggering electric signal.
Preferably, described capacitive device comprises: electric capacity or metal pad.
Preferably, described conductive contact comprises: conduction sponge, conductive rubber, electric silica gel or conductive fabric.
Preferably, described fixture comprises: sucker, mechanical fixed support, stretching elastic ring or viscose.
Preferably, described switching device, capacitive device and driving circuit are located at the upper surface of described holder.
As mentioned above, the utility model provides a kind of trigger-type contact making device, is located at capacitance touch screen surfaces, and described trigger-type contact making device comprises: holder, and lower surface is provided with for the fixture that is fixed to capacitance touch screen surfaces; Conductive contact, is located at described holder lower surface and corresponding to described capacitance touch screen; Switching device, comprise a kind of or combination in electromagnetic type relay and mechanical relay, described switching device connects described conductive contact and is also connected with a capacitive device, the conducting of described switching device make described capacitive device and conductive contact conducting so that described conductive contact with capacitance characteristic, thereby trigger described capacitance touch screen; The shutoff of described switching device makes between conductive contact and capacitive device electrical isolation to eliminate the capacitance characteristic of described conductive contact; Driving circuit, connect described switching device and be connected with external communication interface, trigger electric signal with switching device described in driving conducting for receiving from described external communication interface, described driving circuit makes described switching device turn-off in the time not receiving described triggering electric signal, trigger capacitance touch screen by external trigger electric signal, realize the unartificial operation to capacitance touch screen.
Brief description of the drawings
Fig. 1 is shown as the structure front schematic view of an embodiment of trigger-type contact making device of the present utility model.
Fig. 2 is shown as the vertical view of Fig. 1.
Fig. 3 is shown as the principle schematic of an embodiment of trigger-type contact making device of the present utility model.
Element numbers explanation
1 trigger-type contact making device
11 holders
12 fixtures
13 conductive contacts
14 capacitive devices
15 switching devices
16 external communication interface
17 driving circuits
2 capacitance touch screens
Embodiment
By specific instantiation, embodiment of the present utility model is described below, those skilled in the art can understand other advantages of the present utility model and effect easily by the disclosed content of this instructions.The utility model can also be implemented or be applied by other different embodiment, and the every details in this instructions also can be based on different viewpoints and application, carries out various modifications or change not deviating under spirit of the present utility model.It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.
As shown in Figures 1 and 2, the utility model provides a kind of trigger-type contact making device 1, is located at capacitance touch screen 2 surfaces, so that the assigned address on capacitance touch screen 2 surfaces is carried out to unartificial triggering for supplying; Wherein, described trigger-type contact making device 1 comprises: holder 11, fixture 12, conductive contact 13, be electrically connected described conductive contact 13 and be also connected with capacitive device 14 switching device 15, be electrically connected described switching device 15 and be connected with the driving circuit 17 of external communication interface 16.
Described holder 11, lower surface is provided with for the fixture 12 that is fixed to capacitance touch screen 2 surfaces; In one embodiment, described holder 11 in the form of sheets, described fixture 12 comprises: sucker, mechanical fixed support, stretching elastic ring or viscose etc., be fixed on described capacitance touch screen 2 by modes such as such as sucker absorption, stretching elastic ring colligation, viscose bondings by described trigger-type contact making device 1.
Described conductive contact 13, is located at described holder 11 lower surfaces and corresponding to described capacitance touch screen 2; Be fixed to the surface of described capacitance touch screen 2 at described trigger-type contact making device 1 by fixture 12, make described conductive contact 13 such as, corresponding to needing to realize the part that touches operation, button etc. on capacitance touch screen 2.
And, as shown in Figure 2, in one embodiment, described switching device 15, capacitive device 14 and driving circuit 17 are located at the upper surface of described holder 11, and preferably, the position of setting and described conductive contact 13 are pros and cons, can reduce like this length of arrangement wire, difficulty reduces costs and connects up.
See also Fig. 3, in order to the mutual principle of work of electric signal between above-mentioned device to be described.
Described switching device 15, connect described conductive contact 13 and also connect described capacitive device 14, the conducting of described switching device 15 make described capacitive device 14 with conductive contact 13 conductings so that described conductive contact 13 with capacitance characteristic, thereby trigger described capacitance touch screen 2; The shutoff of described switching device 15 makes described capacitive device 14 and conductive contact 13 disconnect eliminating the capacitance characteristic of described conductive contact 13, preferably, capacitance when described conductive contact 13 has capacitance characteristic approaches the coupling capacitance that finger and trigger-type capacitance touch screen 2 produce as far as possible, for example 3～5 pico farads, so touch capacitance touch screen 2 with simulation finger.
In one embodiment, described conductive contact 13 comprises: conduction sponge, conductive rubber, electric silica gel or conductive fabric; Because the capacitance of this conductive contact 13 self is almost nil, even if therefore keep normal contact condition also can not trigger capacitance touch screen 2 between conductive contact 13 and capacitance touch screen 2, and in the time of switching device 15 conducting, can make this conductive contact 13 and capacitive device 14 conductings, thereby moment increases the capacitance of conductive contact 13, then triggers capacitance touch screen 2.
While touching by object due to most of capacitance touch screen if this object with and faint coupling capacitance just can trigger screen, and the pin of most of electron device or the output capacitance of contact are all greater than human finger's coupling capacitance, therefore under the state that keeps often contacting with capacitance touch screen 2 at conductive contact 13, be difficult for electronics device simulation human finger capacitance characteristic, thereby the capacitance that has pin and conductive contact 13 to be directly connected once ordinary electronic device is difficult to accomplish directly to drive the mode of conductive contact 13 to trigger screen will to cause conductive contact 13 rises to approaching or is greater than human finger's capacitance false triggering touch-screen, ordinary electronic device must be realized between conductive contact 13 and capacitive device 14 switching device 14 of electrical isolation completely by can guarantee to turn-off time and indirectly drive conductive contact 13, described switching device 15 can be the device with mechanical switch plug-in strip, again or electromagnetic type relay etc., described capacitive device 14 comprises: electric capacity or metal pad, for example a little electric capacity (for example 3～5pf left and right) or a larger metal pad or direct being connected with the power supply of circuit board or the metal pad on ground can, because being all not less than human finger, the capacitance under above variety of way touches touch-screen coupling capacitance, but can be comparatively approaching.
From the above, described switching device 15 can comprise electromagnetic type relay or mechanical relay, certainly also can be the implementation that realizes the switch of electrical isolation between conductive contact 13 and capacitive device 14 when other can guarantee to turn-off, under perfect condition, is to realize electrical isolation completely.
Described driving circuit 17, connects described switching device 15 and is connected with external communication interface 16 (for example conventional serial ports, universaling I/O port etc.), for receiving and trigger electric signal with switching device 15 described in driving conducting from described external communication interface 16.
Specifically, application mode of the present utility model is: trigger-type contact making device 1 of the present utility model is fixed on to capacitance touch screen 2 surfaces, conductive contact 13 contacts or keeps producing the distance of triggering with needing the region by automatic touch-control on capacitance touch screen 2, the function in this region and shape all can be any, only need be in the time will using of the present utility model setting out make described conductive contact 13 and the contraposition of described region when contact making device 1, for example this region has shown a button, the driving circuit 17 of the utility model device receives the triggering electric signal of for example curtage form by external communication interface 16, then actuating switch device 15 is to get up capacitive device 14 and conductive contact 13 mutual conduction, moment makes the capacitance of conductive contact 13 become greater to the capacitance that approaches human finger, thereby simulate state that finger presses down and trigger button on capacitance touch screen 2 and reach the object of automatic triggering, when described triggering electric signal disappears, driving circuit 17 meeting stopcock devices 15, thereby the capacitance that makes conductive contact 13 reverts to the state that approaches zero, discharge the button on screen thereby be equivalent to simulate the state that finger lifts, completed whole automatic touch-control process at this point.
In sum, the utility model provides a kind of trigger-type contact making device, is located at capacitance touch screen surfaces, and described trigger-type contact making device comprises: holder, and lower surface is provided with for the fixture that is fixed to capacitance touch screen surfaces; Conductive contact, is located at described holder lower surface and corresponding to described capacitance touch screen; Switching device, comprise a kind of or combination in electromagnetic type relay and mechanical relay, described switching device connects described conductive contact and is also connected with a capacitive device, the conducting of described switching device make described capacitive device and conductive contact conducting so that described conductive contact with capacitance characteristic, thereby trigger described capacitance touch screen; The shutoff of described switching device makes between conductive contact and capacitive device electrical isolation to eliminate the capacitance characteristic of described conductive contact; Driving circuit, connect described switching device and be connected with external communication interface, trigger electric signal with switching device described in driving conducting for receiving from described external communication interface, described driving circuit makes described switching device turn-off in the time not receiving described triggering electric signal, trigger capacitance touch screen by external trigger electric signal, realize the unartificial operation to capacitance touch screen.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all can, under spirit of the present utility model and category, modify or change above-described embodiment.Therefore, have in technical field under such as and conventionally know that the knowledgeable modifies or changes not departing from all equivalences that complete under spirit that the utility model discloses and technological thought, must be contained by claim of the present utility model.
Claims (5)
1. a trigger-type contact making device, is characterized in that, is located at capacitance touch screen surfaces, and described trigger-type contact making device comprises:
Holder, lower surface is provided with for the fixture that is fixed to capacitance touch screen surfaces;
Conductive contact, is located at described holder lower surface and corresponding to described capacitance touch screen;
Switching device, comprise a kind of or combination in electromagnetic type relay and mechanical relay, described switching device connects described conductive contact and is also connected with a capacitive device, the conducting of described switching device make described capacitive device and conductive contact conducting so that described conductive contact with capacitance characteristic, thereby trigger described capacitance touch screen; The shutoff of described switching device makes between conductive contact and capacitive device electrical isolation to eliminate the capacitance characteristic of described conductive contact;
Driving circuit, connect described switching device and be connected with external communication interface, trigger electric signal with switching device described in driving conducting for receiving from described external communication interface, described driving circuit makes described switching device turn-off in the time not receiving described triggering electric signal.
2. trigger-type contact making device according to claim 1, is characterized in that, described capacitive device comprises: electric capacity or metal pad.
3. trigger-type contact making device according to claim 1, is characterized in that, described conductive contact comprises: conduction sponge, conductive rubber, electric silica gel or conductive fabric.
4. trigger-type contact making device according to claim 1, is characterized in that, described fixture comprises: sucker, mechanical fixed support, stretching elastic ring or viscose.
5. trigger-type contact making device according to claim 1, is characterized in that, described switching device, capacitive device and driving circuit are located at the upper surface of described holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420305134.XU CN203909774U (en) | 2014-06-09 | 2014-06-09 | Trigger type contact device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420305134.XU CN203909774U (en) | 2014-06-09 | 2014-06-09 | Trigger type contact device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203909774U true CN203909774U (en) | 2014-10-29 |
Family
ID=51784027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420305134.XU Active CN203909774U (en) | 2014-06-09 | 2014-06-09 | Trigger type contact device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203909774U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104063104A (en) * | 2014-06-09 | 2014-09-24 | 上海尔旁电子科技有限公司 | Triggering type contact device |
| CN104954571A (en) * | 2015-06-19 | 2015-09-30 | 东南大学 | Mobile phone accessory and mobile phone APP (application) capable of testing wind power and wind direction |
-
2014
- 2014-06-09 CN CN201420305134.XU patent/CN203909774U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104063104A (en) * | 2014-06-09 | 2014-09-24 | 上海尔旁电子科技有限公司 | Triggering type contact device |
| CN104063104B (en) * | 2014-06-09 | 2017-01-18 | 上海尔旁电子科技有限公司 | Triggering type contact device |
| CN104954571A (en) * | 2015-06-19 | 2015-09-30 | 东南大学 | Mobile phone accessory and mobile phone APP (application) capable of testing wind power and wind direction |
| CN104954571B (en) * | 2015-06-19 | 2018-11-16 | 东南大学 | A method of wind direction test is carried out using mobile strap |
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| GR01 | Patent grant |