High-reliability power source
A reliability and power supply technology, applied to electrical components, adjusting electrical variables, instruments, etc., can solve problems such as poor reliability and vibration resistance, insufficient electromagnetic compatibility, and large size, and achieve high conversion efficiency, light weight, and small size Effect
Active Publication Date: 2013-06-19
XIAN HENGFEI ELECTRONICS TECH
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Problems solved by technology
[0002] In some specific environments, the control system or the detection unit needs a power module with small size and high reliability, but the existing power module is difficult to meet the required design requirements due to its large size
Especially in terms of reliability, there are problems such as poor vibration resistance, insufficient electromagnetic compatibility, and easy to be affected by complex electromagnetic effects in space.
Method used
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Embodiment Construction
[0019] Such as figure 1 As shown, a high-reliability power supply includes at least a circuit board 1 and a power supply circuit 2 for a fixed power supply circuit. The circuit board 1 and the power supply circuit 2 for the fixed power supply circuit are encapsulated in a circular casing 3, and the circular casing 3 and There is a gap 4 between the circuit boards 1 for fixing the power supply circuit, and the gap 4 is potted with silicone gel 5. The height between the silicone gel potting and the shell edge is 0.1-0.3mm. The round housing 3 is in the shape of two embossed shapes with unequal diameters, the diameter of the upper housing 6 of the embossed shape is 42 mm, and the diameter of the lower housing 7 of the raised embossing is 42 mm. The input line 8 of the power supply circuit and the output line 9 of the power supply circuit are respectively led out from the upper and lower surfaces of the circular casing 3.
[0020] Power circuit 2 such as figure 2 As shown, it incl...
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Abstract
The invention relates to a power source module, in particular to a power source module which is small in size and high in reliability. The power source module at least comprises a circuit board used for fixing a power source circuit and the power source circuit, the circuit board used for fixing the power source circuit and the power source circuit are packed in a circular shell, and organic silicon gel is poured and packed in a gap between the circular shell and the circuit board used for fixing the power source circuit. Thus, a common mode filter is added at an output end. A single magnetic ball or a plurality of magnetic balls is or are arranged in an interferential circuit in a serial connection mode. A feedthru capacitor is added on an output line. Two output leads and one input lead of the power source circuit are respectively stranded, a transient voltage suppressor is arranged at an input end of the power source circuit, and therefore reliability is improved. The organic silicon gel is poured and packed in the gap between the circular shell and the circuit board used for fixing the power source circuit, and therefore vibration strength can reach more than 30000g.
Description
Technical field [0001] The invention relates to a power module, in particular to a power module with small volume and high reliability. Background technique [0002] In some specific environments, the control system or the detection unit needs a small and highly reliable power module, but the existing power module is too large to meet the required design requirements. Especially in terms of reliability, there are problems of poor anti-vibration, inadequate electromagnetic compatibility, and susceptibility to complicated electromagnetic effects in space. Summary of the invention [0003] The purpose of the present invention is to provide a small-sized, high-reliability power module and process with a small volume, vibration resistance greater than 30,000 g, and high reliability, so that normal operation can be ensured in a complex electromagnetic environment and strong impact. [0004] The purpose of the present invention is achieved in this way, a high-reliability power supply, whi...
Claims
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Login to View More IPC IPC(8): H02M3/00H02M1/44
Inventor 赵恺李朝辉
Owner XIAN HENGFEI ELECTRONICS TECH