CN206364958U - Vehicle-mounted ground DTV - Google Patents
Vehicle-mounted ground DTV Download PDFInfo
- Publication number
- CN206364958U CN206364958U CN201720051864.5U CN201720051864U CN206364958U CN 206364958 U CN206364958 U CN 206364958U CN 201720051864 U CN201720051864 U CN 201720051864U CN 206364958 U CN206364958 U CN 206364958U
- Authority
- CN
- China
- Prior art keywords
- vehicle
- chip loop
- loop
- master chip
- mounted ground
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Noise Elimination (AREA)
Abstract
The utility model is related to terrestrial DTV technical field, discloses a kind of vehicle-mounted ground DTV：Paving copper is carried out respectively on chip loop and master chip loop, the reception chip loop and master chip loop including receiving, and the reception chip loop and master chip loop pass through respective ground connection respectively.The utility model is by the paving Copper treatment to pcb board and increases rational screening cover, effectively shields interference of the external complicated electromagnetic radiation environment to module, it is ensured that the good receiving sensitivity of module.And simplify the application of vehicle-mounted ground digital television module.
Description
Technical field
The utility model is related to terrestrial DTV technical field, more particularly to a kind of vehicle-mounted ground DTV.
Background technology
Present vehicle-mounted digital television, internal electromagnetic environment is more complicated, and electron radiation interference is relatively more, can influence ground number
The receiving sensitivity of word television module, so as to influence to receive platform effect.Ground digital television receiver is designed to after module, is limited
In the smaller size smaller and compact row's plate of module, the DDR interference of master chip, dominant frequency interference, HDMI interference will be than more prominent, easily
The signal sensitivity for receiving chip is had influence on, and when being applied to vehicle device, the dominant frequency interference of vehicle device also all can the problems such as power supply disturbance
Have influence on receiving sensitivity.Therefore, vehicle-mounted module application is required for vehicle-mounted doing special anti-interference process at present.This is not only
Processing is complicated, and jamproof effect is undesirable.
Utility model content
The utility model is in order to solve the above-mentioned technical problem there is provided a kind of vehicle-mounted ground DTV, by arranging plate to PCB
Optimization and increase screening cover, it is ensured that good receiving sensitivity.
To achieve these goals, the utility model provides following technical scheme：
A kind of vehicle-mounted ground DTV, it is characterized in that, including receive chip loop and master chip loop, the reception core
Paving copper is carried out on piece loop and master chip loop respectively, the reception chip loop and master chip loop are connect by respective respectively
It is ground wire grounded.
Further, the reception chip loop includes chip circuit and receiving circuit, and the master chip loop includes main core
Piece circuit and power circuit.
Further, the vehicle-mounted ground DTV also includes shell, and the shell is shielding case.
Further, the shell is divided into the first shell and second housing, and first shell is arranged on the reception chip
On loop, the second housing is arranged on the master chip loop.
The beneficial effects of the utility model are：
(1) by the paving Copper treatment to pcb board and the rational screening cover of increase, external complicated electromagnetism spoke is effectively shielded
Penetrate interference of the environment to module, it is ensured that the good receiving sensitivity of module；
(2) application of vehicle-mounted ground digital television module is simplified.
Brief description of the drawings
Accompanying drawing 1 is the schematic diagram of circuit pcb board of the present utility model；
Accompanying drawing 2 is the utility model product shape figure.
Embodiment
The embodiment to the utility model vehicle-mounted ground DTV elaborates below.
Referring to accompanying drawing 1, set on the pcb board of vehicle-mounted ground DTV and receive chip loop 1 and master chip loop 2, connect
Receiving chip loop 1 includes chip circuit and receiving circuit, and master chip loop 2 includes master chip circuit and power circuit.Receive core
Paving copper is carried out on piece loop 1 and master chip loop 2 respectively, chip loop 1 is received and master chip loop 2 is connect by respective respectively
Ground wire GND1 and GND2 are grounded.
Referring to accompanying drawing 2, shielding shell is installed in vehicle-mounted ground DTV, shielding shell is divided into the first shell 3 and second
Shell 4, the first shell 3, which is arranged on, to be received on chip loop 1, and second housing 4 is arranged on master chip loop 2.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
Art personnel, on the premise of the utility model principle is not departed from, can also make some improvements and modifications, these improvements and modifications
Also it should be regarded as protection domain of the present utility model.
Claims (4)
1. a kind of vehicle-mounted ground DTV, it is characterised in that：Including receiving chip loop and master chip loop, the reception core
Paving copper is carried out on piece loop and master chip loop respectively, the reception chip loop and master chip loop are connect by respective respectively
It is ground wire grounded.
2. vehicle-mounted ground DTV according to claim 1, it is characterised in that：The reception chip loop includes chip
Circuit and receiving circuit, the master chip loop include master chip circuit and power circuit.
3. vehicle-mounted ground DTV according to claim 1 or 2, it is characterised in that：The vehicle-mounted ground DTV
Also include shell, the shell is shielding case.
4. vehicle-mounted ground DTV according to claim 3, it is characterised in that：The shell is divided into the first shell and
Two shells, first shell is arranged on the reception chip loop, and the second housing is arranged on the master chip loop
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720051864.5U CN206364958U (en) | 2017-01-17 | 2017-01-17 | Vehicle-mounted ground DTV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720051864.5U CN206364958U (en) | 2017-01-17 | 2017-01-17 | Vehicle-mounted ground DTV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206364958U true CN206364958U (en) | 2017-07-28 |
Family
ID=59380021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720051864.5U Expired - Fee Related CN206364958U (en) | 2017-01-17 | 2017-01-17 | Vehicle-mounted ground DTV |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206364958U (en) |
-
2017
- 2017-01-17 CN CN201720051864.5U patent/CN206364958U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170728 Termination date: 20180117 |