Key switch with multifunctional protection device

A protection device and key switch technology, applied to electric switches, power devices inside switches, electrical components, etc., can solve problems such as high failure rate

Pending Publication Date: 2019-05-21
李乐修
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problems that the existing switch cannot be disconnected after the power is turned off, must be replaced after the protection action, and has a high failure rate, the purpose of the present invention is to:

Method used

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  • Key switch with multifunctional protection device

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Embodiment Construction

[0032] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0033] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0034] It should be noted that relative terms such as "left" and "right" are only used to describe the relative positional relationship of objects, and do not necessarily require or imply the direction or position in which these objects must be arranged.

[0035] Combine below figure 1 The present invention will be described in detail.

[0036] A k...

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Abstract

The invention belongs to the field of key switches, particularly relates to a key switch with a multifunctional protection device, and aims at the problems in the prior art that a switch can not be switched off after outage, the switch needs to be replaced after protection action and a fault rate is high. The key switch has the technical scheme of comprising a shell, wherein the shell is providedwith an electromagnet, one end of the electromagnet is provided with guide plate springs, the other ends of the guide plate springs are provided with a metal guide plate, and one end, which is connected with the guide plate springs, of the metal guide plate is provided with an armature. When the device is electrified, the electromagnet attracts the armature to switch on and off the switch. Duringoutage, the armature loses attractive force, and at the time, the switch is locked and can not be pressed down. By use of the key switch, when the switch is subjected to outage, disconnection is automatically carried out, the safety of the circuit is protected, and an effect on saving electricity is performed.

Description

technical field [0001] The field of key switches, in particular, relates to a key switch with a multifunctional protection device. Background technique [0002] The word switch is interpreted as turning on and off, but it also refers to an electronic component that can open a circuit, interrupt the current flow, or cause it to flow to other circuits. At present, there are many types of electrical switches with different structures on the market, but most of them lack stable and reliable protection devices. [0003] Nowadays, most of them use fuses or electronic circuits to realize the protection function. This kind of protection method cannot realize power-off protection. If the power is interrupted during use, the user forgets to turn off the electrical appliance. It will automatically start under human supervision. If the electrical appliance is a high-power electrical appliance such as an induction cooker or a hair dryer, there will be a great safety hazard; the one-time...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H3/54H01H3/28H01H3/32
Inventor 李乐修
Owner 李乐修
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