| 摘要 |
A power supply device includes a power supply input portion, a rectification portion, a smoothing portion, a power conversion portion, a power supply output portion, a signal input portion, a control portion, a circuit substrate, and a case. The circuit substrate is formed in an elongated rectangular plate-like shape. The power supply input portion is mounted on a first end portion of the circuit substrate in a longitudinal direction. The rectification portion, the smoothing portion, the power conversion portion, the control portion, and the power supply output portion are mounted on the circuit substrate in the stated order from the first end portion toward a second end portion in the longitudinal direction. The signal input portion is mounted at a position closer to the second end portion than the rectification portion in the circuit substrate. |
| 主权项 |
1. A power supply device comprising:
a first case that houses:
a power supply input configured to receive an AC voltage;a rectifier configured to rectify the AC voltage received by the power supply input;a capacitor configured to smooth a pulsating voltage outputted from the rectifier;a power converter configured to convert a first DC voltage into a second DC voltage, the first DC voltage being outputted from the capacitor;a power supply output configured to output the second DC voltage converted in the power converter;a signal input configured to receive a control signal;a processor configured to control the power converter to change a magnitude of the second DC voltage, which is to be outputted from the power supply output, based on the control signal received by the signal input; anda circuit substrate on which the power supply input, the rectifier, the capacitor, the power converter, the power supply output, the signal input, and the processor are mounted,the circuit substrate having a planar rectangular shape, the power supply input being mounted on a first end portion of the circuit substrate in a longitudinal direction, the rectifier, the capacitor, the power converter, the processor, and the power supply output being mounted on the circuit substrate in a stated order from the first end portion toward a second end portion in the longitudinal direction,the signal input being mounted at a position closer to the second end portion than the rectifier in the circuit substrate; and a second case that houses:
a control circuit configured to generate the control signal, and to output the control signal to the signal input; anda first mounting mechanism that enables the second case to be mechanically mounted on the first case,the control circuit including a print wiring board having a planar rectangular shape and a component mounted on the print wiring board, the component being electrically connected to a power supply included in the first case via the signal input, the power supply comprises
a second mounting mechanism that is to be coupled to the first mounting mechanism and configured to accommodate the second case to be mechanically mounted on the first case, the second case has a box shape having an open surface, the second case includes a pair of side walls and a pair of fitting portions provided on the pair of side walls, into which respective peripheral portions of the print wiring board inserted from the open surface are fitted, and the second case is mounted to the first case to overlap and close the open surface of the second case by the first case, the first mounting mechanism is provided on first portions of the pair of side walls, the pair of side walls are configured to provide a gap between the first portions of the pair of side walls in the parallel direction of the print wiring board that is smaller than a gap provided between second portions of the pair of side walls provided on the pair of fitting portions, a step structure is provided at a portion of each of the side walls disposed between the fitting portion and the first mounting mechanism, and the pair of side walls are configured such that gaps are formed between the first portions, which are provided on the first mounting mechanism, and the second portions, which are provided on the fitting portion, by the step structures. |
