CN203733114U - Hot plug electronic device - Google Patents
Hot plug electronic device Download PDFInfo
- Publication number
- CN203733114U CN203733114U CN201320893027.9U CN201320893027U CN203733114U CN 203733114 U CN203733114 U CN 203733114U CN 201320893027 U CN201320893027 U CN 201320893027U CN 203733114 U CN203733114 U CN 203733114U
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- CN
- China
- Prior art keywords
- display
- signal transmission
- transmission interface
- processing module
- electronic device
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- Expired - Fee Related
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Abstract
The utility model provides a hot plug electronic device. The hot plug electronic device comprises a host unit and a display. The host part is provided with a first conductive contact unit, a first signal transmission port and a processing module, wherein the processing module detects grounding signals, and when detecting the grounding signals out, controls the first signal transmission port to transmit the signals; the display is matched with the host part through insertion and comprises a second conductive contact unit and a second signal transmission port; when the display is plugged in, the second conductive contact unit and the first conductive contact unit are in electric contact and generate the grounding signals, and the processing module controls the display for displaying through the first signal transmission port and the second signal transmission port; when the display is unplugged, the second conductive contact unit and the first conductive contact unit are in electric isolation, and signal communication between the processing module and the display is disconnected. The hot plug electronic device can achieve replacement of the display in a power-on state and meet the requirement of displays in different sizes on sharing the same host part.
Description
[technical field]
The utility model relates to a kind of hot plug electronic device, particularly a kind of can be under open state the hot plug electronic device of switching display more.
[background technology]
Portable Navigation Devices portable automatic navigation system; Simply say to be exactly PDA+GPS, but it is except PPC(Pocket PC, the palm PC based on Windows CE operating system) some functions and the location and navigation feature of GPS outside, added again a lot of functions and got on.PND is integrated portable equipment, is hand-held and vehicle-mounted dual-purpose navigational system, is the combination that navigation adds abundant additional function.Not only be attached with life, travel information, have again amusement, commercial expanded function simultaneously.
Existing PND is integral type structure, and the main frame part of PND and the display of PND are integrated in one, and the warm connection function of display cannot be provided.
[summary of the invention]
Fundamental purpose of the present utility model be to provide a kind of can be under open state the hot plug electronic device of switching display more.
The utility model provides a kind of hot plug electronic device; It comprises:
Main frame part, which is provided with the first electrically conducting contact, first signal transmission interface and processing module, and described processing module detecting ground signalling, and when detecting ground signalling, processing module is controlled first signal transmission interface signal transmission;
Display, it is pegged graft and coordinates with described main frame part, and described display is provided with the second electrically conducting contact and secondary signal transmission interface; When display is inserted into, the second electrically conducting contact and the first electrically conducting contact are in electrical contact and produce ground signalling, and processing module is controlled display by first signal transmission interface and secondary signal transmission interface and shown; And when display is pulled out, the second electrically conducting contact and the first electrically conducting contact electrical isolation, the signal transmission of processing module and display is interrupted.
Especially, described main frame part is Vehicular fixing frame.
Especially, the first electrically conducting contact is magnet, the metal shell that the second electrically conducting contact is display, and butt electroconductive elastic sheet inside shell, and described electroconductive elastic sheet is electrically connected the ground signalling end of display.
Especially, first signal transmission interface is pogo pin connector, and secondary signal transmission interface is pogo pad connector.
Especially, the signal of first signal transmission interface transmission comprises power supply signal, data-signal.
Especially, in described main frame part, be provided with LVDS transmitter, and LVDS transmitter is electrically connected between first signal transmission interface and processing module, processing module sends data-signal to LVDS transmitter, LVDS transmitter receipt data-signal also converts thereof into RTCM-Radio Technical Commission for Maritime Services, then transfers to the first letter and transmission interface.
Especially, in described display, establish LVDS receiver, and LVDS receiver electric connection secondary signal transmission interface, secondary signal transmission interface receives differential signal and also transfers to LVDS receiver, and LVDS receiver receives differential signal and also converts thereof into rgb signal.
Especially, described processing module comprises CPLD and CPU, and CPLD electric connection discharge loop, and by CPLD detecting ground signalling, and when display is inserted into, CPLD detects ground signalling and closes discharge loop; And when display is pulled out, CPLD detecting is less than ground signalling and open discharge loop; CPU is according to carrying out signal transmission between ground signalling and display.
Compared with prior art, in the utility model hot plug electronic device, between display and main frame part, peg graft and can produce ground signalling while coordinating, and determine that by ground signalling the signal between processing module and display transmits, can be under open state switching display more, and the display that can meet multiple different size is shared the requirement of same main frame part.
[accompanying drawing explanation]
Fig. 1 is the structural representation of the utility model hot plug electronic device.
Fig. 2 is the structural representation of the preferred embodiment of the utility model hot plug electronic device.
[embodiment]
Refer to shown in Fig. 1, the utility model provides a kind of hot plug electronic device; It comprises:
Main frame part 10, which is provided with the first electrically conducting contact 11, first signal transmission interface 12 and processing module 13, and described processing module 13 detecting ground signallings, and when detecting ground signalling, processing module 13 is controlled first signal transmission interface 12 signal transmissions;
Display 20, it is pegged graft and coordinates with described main frame part 10, and described display 20 is provided with the second electrically conducting contact 21 and secondary signal transmission interface 22; When display 20 is inserted into, the second electrically conducting contact 21 and the first electrically conducting contact 11 are in electrical contact and produce ground signalling, and processing module 13 is controlled display 20 by first signal transmission interface 12 and secondary signal transmission interface 22 and shown; And when display 20 is pulled out, the second electrically conducting contact 21 and the first electrically conducting contact 11 electrical isolation, processing module 13 is interrupted with the signal transmission of display 20.
In the present embodiment, described main frame part 10 is Vehicular fixing frame.The first electrically conducting contact 11 is magnet, the second electrically conducting contact 21 is the metal shell of display 20, and butt electroconductive elastic sheet (not shown) inside shell, described electroconductive elastic sheet is electrically connected the ground signalling end of display 20, during plant, the metal shell of magnet adsorption display 20 can guarantee that the first electrically conducting contact 11 contacts with the second electrically conducting contact 21.First signal transmission interface 12 is pogo pin connector, and secondary signal transmission interface 22 is pogo pad connector.The signal of first signal transmission interface transmission comprises power supply signal, data-signal.
Refer to shown in Fig. 2, in described main frame part 10, be provided with LVDS transmitter 14, and LVDS transmitter 14 is electrically connected between first signal transmission interface 12 and processing module 13, processing module 13 sends data-signal to LVDS transmitter 14, LVDS transmitter 14 receives data-signal and converts thereof into RTCM-Radio Technical Commission for Maritime Services, then transfers to the first letter and transmission interface 12.In described display 20, establish LVDS receiver 24, and LVDS receiver 24 is electrically connected secondary signal transmission interface 22, secondary signal transmission interface 22 receives differential signal and transfers to LVDS receiver 24, and LVDS receiver 24 receives differential signal and converts thereof into rgb signal for showing.And described processing module 13 comprises CPLD131 and CPU132, and CPLD131 electric connection discharge loop 15, by CPLD131 detecting ground signalling, and when display 20 is inserted into, CPLD131 detects ground signalling and closes discharge loop 15; And when display 20 is pulled out, CPLD131 detecting is less than ground signalling and open discharge loop 15; CPU132 is according to carrying out signal transmission between ground signalling and display 20.
In the utility model hot plug electronic device, between display 20 and main frame part 10, peg graft and can produce ground signalling while coordinating, and determine that by ground signalling the signal between processing module 13 and display 20 transmits, can be under open state switching display 20 more, and the display 20 that can meet multiple different size is shared the requirement of same main frame parts 10.In the situation that not plugging display 20, main frame part 10 also can be started shooting in advance or timing automatic is started shooting, user can be as required after start switching display 20 more, after display 20 is inserted into, just can between main frame part 10 and display 20, realize data transmission and be shown, the hot plug of display 20 is used and is provided users with the convenient.
The above; it is only embodiment of the present utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (8)
1. a hot plug electronic device; It is characterized in that comprising:
Main frame part, which is provided with the first electrically conducting contact, first signal transmission interface and processing module, and described processing module detecting ground signalling, and when detecting ground signalling, processing module is controlled first signal transmission interface signal transmission;
Display, it is pegged graft and coordinates with described main frame part, and described display is provided with the second electrically conducting contact and secondary signal transmission interface; When display is inserted into, the second electrically conducting contact and the first electrically conducting contact are in electrical contact and produce ground signalling, and processing module is controlled display by first signal transmission interface and secondary signal transmission interface and shown; And when display is pulled out, the second electrically conducting contact and the first electrically conducting contact electrical isolation, the signal transmission of processing module and display is interrupted.
2. hot plug electronic device according to claim 1, is characterized in that: described main frame part is Vehicular fixing frame.
3. hot plug electronic device according to claim 1, it is characterized in that: the first electrically conducting contact is magnet, the second electrically conducting contact is the metal shell of display, and butt electroconductive elastic sheet inside shell, and described electroconductive elastic sheet is electrically connected the ground signalling end of display.
4. hot plug electronic device according to claim 1, is characterized in that: first signal transmission interface is pogo pin connector, and secondary signal transmission interface is pogo pad connector.
5. hot plug electronic device according to claim 1, is characterized in that: the signal of first signal transmission interface transmission comprises power supply signal, data-signal.
6. hot plug electronic device according to claim 5, it is characterized in that: in described main frame part, be provided with LVDS transmitter, and LVDS transmitter is electrically connected between first signal transmission interface and processing module, processing module sends data-signal to LVDS transmitter, LVDS transmitter receipt data-signal also converts thereof into RTCM-Radio Technical Commission for Maritime Services, then transfers to the first letter and transmission interface.
7. hot plug electronic device according to claim 6, it is characterized in that: in described display, establish LVDS receiver, and LVDS receiver is electrically connected secondary signal transmission interface, secondary signal transmission interface receives differential signal and transfers to LVDS receiver, and LVDS receiver receives differential signal and converts thereof into rgb signal.
8. hot plug electronic device according to claim 5, it is characterized in that: described processing module comprises CPLD and CPU, and CPLD electric connection discharge loop, by CPLD detecting ground signalling, and when display is inserted into, CPLD detects ground signalling and closes discharge loop; And when display is pulled out, CPLD detecting is less than ground signalling and open discharge loop; CPU is according to carrying out signal transmission between ground signalling and display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893027.9U CN203733114U (en) | 2013-12-31 | 2013-12-31 | Hot plug electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893027.9U CN203733114U (en) | 2013-12-31 | 2013-12-31 | Hot plug electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203733114U true CN203733114U (en) | 2014-07-23 |
Family
ID=51203172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320893027.9U Expired - Fee Related CN203733114U (en) | 2013-12-31 | 2013-12-31 | Hot plug electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203733114U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106873978A (en) * | 2017-01-03 | 2017-06-20 | 上海与德信息技术有限公司 | A kind of screen update method and apparatus of terminal |
-
2013
- 2013-12-31 CN CN201320893027.9U patent/CN203733114U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106873978A (en) * | 2017-01-03 | 2017-06-20 | 上海与德信息技术有限公司 | A kind of screen update method and apparatus of terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20141231 |
|
| EXPY | Termination of patent right or utility model |