Electronic device capable of reducing electromagnetic radiation
A technology for electronic devices and sub-boards, which is applied in the direction of printed circuits, electrical components, impedance networks, etc. connected to non-printed electrical components, and can solve problems such as electromagnetic radiation and electromagnetic interference generated by connecting lines
Inactive Publication Date: 2014-12-31
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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- Application Information
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Problems solved by technology
However, in the process of transmitting data between the motherboard and the daughter board through the connecting wire, it is easy to generate electromagnetic radiation on the connecting wire, thereby causing adverse effects such as electromagnetic interference on the electronic components in the electronic device.
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[0010] The electronic device capable of reducing electromagnetic radiation in the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0011] see figure 1 , In a preferred embodiment of the present invention, the electronic device 100 includes a plurality of printed circuit boards 101 , wherein the printed circuit boards 101 are respectively a motherboard 10 and a plurality of daughter boards 20 and the like. In this embodiment, the electronic device 100 includes a motherboard and a sub-board 20 as an example for illustration. The electronic device 100 further includes a connection wire 30 electrically connecting the motherboard 10 and the daughter board 20 , a first filter element 40 disposed on the motherboard 10 , and a second filter element 50 disposed on the daughter board 20 .
[0012] The connection wire 30 includes a first end 301 and a second end 302 , the first end 301 is electrically connected to the motherboa...
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An electronic device comprises a plurality of printed circuit boards; the printed circuit boards include a mother board and a daughter board; the mother board is electrically connected with the daughter board through connection lines, wherein each connecting line comprises a first end and a second end, wherein the first end is electrically connected with the mother board, and the second end is electrically connected with the daughter board. The electronic device is characterized in that the electronic device also comprises first filter elements arranged on the mother board and second filter elements arranged on the daughter board; the first filter elements are connected between the first ends of the connecting lines and the ground; and the second filter elements are connected between the second ends of the connecting lines and the ground. According to the electronic device of the invention, the first filter elements and the second filter elements absorb electromagnetic radiation generated by the connecting lines between the mother board and the daughter board, and the first filter elements and the second filter elements are respectively arranged at two ends of each connecting line, and therefore, a double filtering effect can be realized, and therefore, reduction of electromagnetic radiation on the connecting lines can be enhanced.
Description
technical field [0001] The invention relates to an electronic device capable of reducing electromagnetic radiation. Background technique [0002] At present, electronic devices and equipment generally use a plurality of circuit boards to jointly complete the operation of the overall function, wherein these circuit boards include a motherboard and several daughter boards, and the motherboard and these daughter boards are generally connected by connecting wires. However, in the process of transmitting data between the motherboard and the daughter board through the connecting wire, electromagnetic radiation is easily generated on the connecting wire, thereby causing adverse effects such as electromagnetic interference on electronic components in the electronic device. Contents of the invention [0003] In view of this, it is necessary to provide an electronic device that can reduce electromagnetic radiation, which can reduce the electromagnetic radiation generated by the conn...
Claims
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IPC IPC(8): H05K1/18
CPCH03H1/0007H03H5/12
Inventor 高富利
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD