switch

A switch and main switch technology, applied in lighting devices, light sources, electric light sources, etc., can solve problems such as difficult to replace light bulbs, large inrush current, easy to burn filaments, etc.

Inactive Publication Date: 2011-11-30
邓太文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] like figure 1 As shown, the light bulb in the staircase is connected in series with the switch and then connected to the circuit. Because the switching frequency of the light bulb in the staircase is very high, the light is often turned on and off, and the inrush current when the light is turned on is very large, which is very easy to burn the filament. The damage time is generally at night, and it is difficult to replace the light bulb at night, which brings great inconvenience to people's going up and down stairs.

Method used

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Embodiment Construction

[0015] Such as figure 2 As shown, the main switch S1 is the main switch of the circuit, its electrical interface A is connected to the power supply, and its electrical interface B is not only the electrical interface connected with the main electrical appliance L1, but also the electrical interface connected with the transfer switch S2 ( figure 2 The electrical interface C of the single-pole single-throw switch is shown in series, that is, the main switch S1 controls two parallel branches, one of which is the branch of the main electrical appliance L1, and the other is the serial connection of the transfer switch S2 and the standby electrical appliance L2 branch. When the main electrical appliance L1 is in good condition, the transfer switch S2 is in the off state, and the standby electrical appliance L2 does not work; when the main electrical appliance L1 is damaged, only the transfer switch S2 needs to be closed, and the backup electrical appliance L2 immediately takes ove...

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Abstract

The invention discloses a switch, which is composed of a main switch and a changeover switch integrated with it in the same box body. switch and other automatic control switches, or the main switch is a manual delay switch. As an improvement: the transfer switch is a manual switch, such as a single-pole single-throw switch or a single-pole double-throw switch. When a certain electrical appliance is suddenly damaged, the transfer switch can be used to transfer the circuit to the standby electrical appliance immediately, so that people's life, work, and study will not be affected, and there is no need to risk repairs and replacements under harsh conditions, which is for the safety of people's lives It provides protection and is widely used in wall switches in stairs, corridors, basements, doorways, garages, etc., and other places that require backup electrical appliances.

Description

Technical field [0001] The invention relates to electrical equipment, in particular to a switch capable of connecting main electrical appliances and standby electrical appliances, especially a wall switch. Background technique [0002] Such as figure 1 As shown, the light bulb in the staircase is connected in series with the switch and then connected to the circuit. Because the switching frequency of the light bulb in the staircase is very high, the light is often turned on and off, and the inrush current when the light is turned on is very large, which is very easy to burn the filament. The damage time is generally at night again, and it is difficult to change the light bulb at night, which brings great inconvenience to people's going up and down stairs. [0003] This situation also exists in places such as stairs, corridors, basements, doorways, and garages. Contents of the invention [0004] The purpose of the present invention is to provide a switch that can connect ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/00
Inventor 邓太文
Owner 邓太文
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