Signal transmission device of bus guideboard LED dot matrix unit board
A signal transmission and unit board technology, applied in circuit heating devices, identification devices, printed circuit components, etc., can solve problems such as inconvenient use of PCB boards and PCB boards, oxidation of cable insertion parts, and signal transmission interruptions. , to prevent damage from excessive pressure, improve service life, and facilitate installation and disassembly.
Inactive Publication Date: 2020-11-27
丹东中博汽车部件制造有限公司
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Problems solved by technology
[0005] Aiming at the deficiencies of the prior art, the present invention provides a signal transmission device for the LED dot matrix unit board of the bus road sign, which solves the problem of inconvenient fixing of the PCB board and the long use time of the PCB board to generate a large amount of heat, which cannot be processed in time It may cause damage to the PCB board, and the PCB board transmits content through 16 signal lines, and it may also cause problems such as poor contact or signal transmission interruption caused by vibration, oxidation or loosening of the cable connector.
Method used
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Embodiment 1
[0028] Such as Figure 1-4 As shown, the embodiment of the present invention provides a signal transmission device for a bus sign LED dot matrix unit board, including a protective case 1 and a PCB board 20, the top of the protective case 1 is fixedly connected with a fixing frame 2, the top of the protective case 1 and One side of the fixed frame 2 is fixedly connected with a rotating motor 3, which is convenient to drive the threaded rod 4 to rotate, and the inside of the fixed frame 2 is movably connected with a threaded rod 4, which is used to drive the moving block 5 to move, and the output end of the rotating motor 3 extends to The inside of the fixed frame 2 is fixedly connected with one end of the threaded rod 4, the front of the threaded rod 4 is movably connected with a moving block 5, and the top of the moving block 5 is fixedly connected with a fixed buckle 8 for fixing the air duct 9, the fixed buckle 8 The side wall of the fan 6 is fixedly connected with an air gu...
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The invention provides a signal transmission device of a bus guideboard LED dot matrix unit board, and relates to the technical field of signal transmission devices. The signal transmission device ofthe bus guideboard LED dot matrix unit board comprises a protective shell and a PCB. The top end of the protective shell is fixedly connected with a fixing frame. A rotating motor is fixedly connectedto the top end of the protective shell and located on one side of the fixing frame, a threaded rod is movably connected to the interior of the fixing frame, the output end of the rotating motor extends into the fixing frame to be fixedly connected with one end of the threaded rod, and a PCB is movably connected to the front face of the PCB. Circuit board provided with PCB, according to the utility model, the CPU signal transmission mode is improved, 16 original to-be-transmitted contents can be completed by only two signal lines, the signal transmission is stable, and the phenomena of poor contact or signal transmission interruption and the like caused by vibration and oxidation or loosening of a flat cable plugging part in the conventional flat cable transmission are eliminated.
Description
technical field [0001] The invention relates to the technical field of signal transmission devices, in particular to a signal transmission device for an LED dot matrix unit board of a bus sign. Background technique [0002] The LED car screen is installed on the car. It uses a special power supply, a control card, and a unit board to display text, pictures, animations, and videos through a dot matrix. It is independent with the rapid development of the LED display. A set of LED vehicle-mounted display systems, compared with ordinary door screens and fixed and non-moving LED displays, it has higher requirements for stability, anti-interference, anti-vibration, dust-proof, etc., usually liquid crystal display Screen, external sound, readable SD card, USB and Bluetooth and other functions. [0003] However, when the signal transmission device of the current bus sign LED dot matrix unit board is in use, it is inconvenient to fix the PCB board and the PCB board will be used for ...
Claims
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IPC IPC(8): G09F9/33H05K1/02
CPCG09F9/33H05K1/0203H05K1/0271
Inventor 田开宇曲凯梁涵梦
Owner 丹东中博汽车部件制造有限公司