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Switchgear and load control systems

A switching device and a technology for switching, applied in lighting devices, information technology support systems, lamp circuit layout, etc., can solve problems such as increased power loss of relay coils

Active Publication Date: 2017-12-05
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the conventional example described in Document 1, the current continues to flow through the relay coil of the remote control relay except when the remote control relay is switched from on to off and from off to on.
Therefore, there is a problem of causing an increase in power loss in the relay coil

Method used

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  • Switchgear and load control systems
  • Switchgear and load control systems
  • Switchgear and load control systems

Examples

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Embodiment Construction

[0016] Next, a switchgear according to one embodiment of the present invention and a load control system according to one embodiment of the present invention will be described in detail with reference to the drawings. In addition, in the following description, although the lighting load is illustrated as a load, the kind of load is not limited to a lighting load.

[0017] Such as Image 6 As shown, the load control system of this embodiment has a switch device 1 and three remote control relays 2 (2A, 2B, 2C). However, in the following description, the symbols "2A", "2B" and "2C" are attached when the three remote control relays are distinguished, and the symbol "2" is indicated when the three remote control relays are not distinguished. Similarly, the symbols "4A", "4B", and "4C" are added when the three lighting loads are distinguished, and the symbol "4" is added when the three lighting loads are not distinguished.

[0018] The remote control relay 2 is conventionally know...

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PUM

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Abstract

The present invention aims to provide a switching device and a load control system for achieving lower power loss than the prior art. A control part (10) controls a power supply part (12) to enable the power supply part (12) to supply power in a short time longer than the time spent on switching from an open state to a close state by a remote control relay (2) and the time spent on switching from the close state to the open state by the remote control relay (2). In addition, the control part (10) is configured to control the power supply part (12), so that the power supply part (12) does not supply power except for the situation that the state of the remote control relay (2) is switched.

Description

technical field [0001] The present invention relates to a switch device and a load control system, in particular to a switch device for controlling lighting loads and the like and a load control system using the switch device. Background technique [0002] Conventionally, there has been provided a load control system that uses a remote control relay (remote control relay) to turn on or off the power supply to the load (for example, refer to Document 1 [Japanese Laid-Open Patent No. 2002-110011 (see paragraphs 0002-0007 and FIG. 34, Figure 35)]). [0003] The conventional example described in Document 1 is constituted by a latching type remote control relay, a remote control transformer, and a switchgear. A remote control relay has a main contact, an auxiliary contact linked to the main contact, and a relay coil. The main contacts are inserted into a power supply path for powering a load (eg a lighting load) from a commercial power supply. The relay coil is powered from th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B37/02
CPCY02B90/20Y04S20/14
Inventor 郭顺霖王玟淇平田聪
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD