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Improved alarm

An alarm and main body technology, applied in the field of alarms, can solve problems such as damaged alarms, wrong actions, etc.

Inactive Publication Date: 2004-02-25
SUNG IL IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, moisture may flow in through the gap between the screw 501 and the hole 505 of the main body 504 through which the screw 501 penetrates, and the inflowing moisture may damage the alarm or cause malfunction.

Method used

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Examples

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Embodiment Construction

[0025] Figure 6 The figure in the middle has the general picture of alarm device 1 among the present invention. When the operator sends out the actuation signal of the alarm and turns on the switch (not shown in the figure), the current flows through the terminal 2 through the contacts 3a, 3b in the coil 5 wound on the bobbin 4, and the armature 6 And the vibrating piece 7 combined with the armature 6 moves downward according to the magnetic pole 8 . As the armature 6 moves down, the insulator 11 contacts the protruding part 9 of the armature 6, and then the spring 12 and the insulator 11 attached with the movable contact 3a are pressed by the protruding part 9, so that the movable contact 3a and the fixed contact 3b Separation occurs.

[0026] If the movable contact 3a is separated from the fixed contact 3b, the armature 6 moves upward according to the restoring force of the vibrating plate 7 and the spring 12, so that the movable contact 3a contacts the fixed contact 3b, ...

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Abstract

The present invention relates to a car alarm, in particular, it is a car electric alarm by using electromagnetic iron to give out alarm sound. It is aimed at providing an improved alarm capable of effectively and reliable preventing the moisture or foreign body from flowing into the interior of alarm, and the alarm is equipped with water-proofing filter and connector base with sealing structure for implementing said invention.

Description

technical field [0001] The invention relates to an alarm device for vehicles, more specifically relates to an electrical alarm device for vehicles which uses electromagnets to emit alarm sounds. Background technique [0002] According to the principle of action, the alarms used for vehicles are generally divided into air type, electric type and electromagnetic type alarms, and the commonly used electric type alarms are simple in structure and low in price. [0003] An example of such an electrical alarm is disclosed in Korean Patent Registration Gazette No. 10-211299. Such as Figure 1a and Figure 1b As shown, when the switch 101 is turned on, current can flow through the coil 103 through the contacts 101a and 101b, and the armature 104 moves toward the magnetic pole 105 side. When the armature 104 moves toward the magnetic pole 105, the movable contact 102a and the fixed contact 102b are separated by the protrusion 106, and the armature 104 moves upward. If the armature...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10K7/00G10K9/13
Inventor 张时福梁赫准
Owner SUNG IL IND
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