Multi-point-preset and fixed-point-selection type lighting switch system
A technology for lighting switches and switches, which is applied to lighting devices, lighting and heating equipment, components of lighting devices, etc., and can solve problems such as complex wiring of three-control switches and multi-control switches
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Embodiment 1
[0016] Embodiment 1: A lighting switch system with multi-point preset and fixed-point selection, its circuit schematic diagram is as follows figure 1 As shown, it has two parallel single-control switches K11 and K12 for controlling the same lighting fixture. In actual use, K11 can be used as the control switch, and K12 should be set in the closed state, that is, set in the open state; or K12 can be used as the control switch, and K11 should be set in the closed state, that is, set in the open state.
Embodiment 2
[0017] Embodiment 2: Another lighting switch system for multi-point preset and fixed-point selection, its circuit schematic diagram is as follows figure 2 As shown, it has three parallel single-control switches K11, K12 and K13 for controlling the same lighting fixture. In actual use, K11 can be used as the control switch, at this time, K12 and K13 should be set in the closed state, that is, set in the open state; or K12 can be selected as the control switch, and K11 and K13 should be set in the closed state , that is, set it in an open state; similarly, K13 can also be used as a control switch, and at this time, K11 and K12 should be set in a closed state, that is, set in an open state.
Embodiment 3
[0018] Embodiment 3: Yet another lighting switch system with multi-point preset and fixed-point selection, its circuit schematic diagram is as follows image 3 As shown, it has two sets of parallel double control switches K21+K21' and K22+K22' for controlling the same lighting fixture. In actual use, K21+K21' can be selected as the control switch, at this time, K22+K22' should be set in the closed state, that is, set in the open state; or K22+K22' can be selected as the control switch, at this time, the K21+K21' is set in a closed state, that is, set in an open state.
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