Abstract: A heat dissipation device including a mounting seat, a fan hung on the mounting seat and a frame connected with the fan is provided. The fan has an air outlet and an air inlet opposite to the air outlet, the air inlet is disposed facing to the mounting seat, the frame is arranged surrounding the air inlet and clamped between the mounting seat and the air inlet. Thereby, a back flowing hot airflow is prevented from being sucked into the air inlet.

Abstract: A heat dissipation device including a mounting seat, a fan hung on the mounting seat and a frame connected with the fan is provided. The fan has an air outlet and an air inlet opposite to the air outlet, the air inlet is disposed facing to the mounting seat, the frame is arranged surrounding the air inlet and clamped between the mounting seat and the air inlet. Thereby, a back flowing hot airflow is prevented from being sucked into the air inlet.

Abstract: The invention provides a digital signage replacement module. The digital signage has a main circuit board and a plug-board disposed therein and connected to each other. The plug-board has a plug-card with a plug-slot, and a track disposed on each side thereof. The digital signage is covered up by a back cover so that an opening can be formed at one side edge of the digital signage. The computer module has a frame and a motherboard. The frame has a rail disposed on each side thereof and the motherboard has a slot and a connecting terminal disposed thereon. The slot has an interface socket card. The computer module can be placed into the digital signage through the opening with the rail placed into the track. Therefore, the connecting terminal is connected to the plug-slot and the computer module can be drawn out for maintenance.

Abstract: A system design for a digital electronic sign board comprises a main circuit module, an adapter module and a computer module; wherein the adapter module is fixed between the main circuit module and the computer module. The main circuit module and the adapter module are fixed in the digital electronic sign board. The computer module is externally inserted into the digital electronic sign board. Therefore the computer module and the main circuit module are electrically connected through the adapter module. The system design of the present invention removable and attached the computer module with the main circuit module. As a result, when a maintenance worker needs to perform maintenance on the computer module, he or she can conveniently pull out the computer module from the digital electronic sign board and insert the computer module back to the digital electronic sign board after maintenance is done so as to improve the efficiency and quality of maintenance.

Abstract: A heat dissipation system for digital electronic signboard includes a first heat dissipation subsystem disposed in a main circuit board area of a digital electronic signboard, and a second heat dissipation subsystem disposed in a computer mainboard area of the digital electronic signboard. The main circuit board area has a plurality of heat dissipation fans disposed therein, wherein one heat dissipation fan is disposed at a side of the main circuit board area, while another heat dissipation fan is disposed at a side of a power supply and can be externally connected to an air guide pipe. The computer mainboard area can also have a plurality of heat dissipation fans disposed therein, wherein one heat dissipation fan is disposed at a side of the computer mainboard, while another heat dissipation fan is disposed on the top of a microprocessor of the computer mainboard.

Abstract: A heat dissipation system for digital electronic signboard includes a first heat dissipation subsystem disposed in a main circuit board area of a digital electronic signboard, and a second heat dissipation subsystem disposed in a computer mainboard area of the digital electronic signboard. The main circuit board area has a plurality of heat dissipation fans disposed therein, wherein one heat dissipation fan is disposed at a side of the main circuit board area, while another heat dissipation fan is disposed at a side of a power supply and can be externally connected to an air guide pipe. The computer mainboard area can also have a plurality of heat dissipation fans disposed therein, wherein one heat dissipation fan is disposed at a side of the computer mainboard, while another heat dissipation fan is disposed on the top of a microprocessor of the computer mainboard.

Abstract: The invention provides a computer module replacement design of a digital signage. The digital signage has a main circuit board and a plug-board disposed therein and connected to each other. The plug-board has a plug-card with a plug-slot, and a track disposed on each side thereof. The digital signage is covered up by a back cover so that an opening can be formed at one side edge of the digital signage. The computer module has a frame and a motherboard. The frame has a rail disposed on each side thereof and the motherboard has a slot and a connecting terminal disposed thereon. The slot has an interface socket card. The computer module can be placed into the digital signage through the opening with the rail placed into the track. Therefore, the connecting terminal is connected to the plug-slot and the computer module can be drawn out for maintenance.