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Static iron core and motor vehicle electric horn provided with the static iron core

A technology of electric horns and static iron cores, which is applied in the direction of sound-generating instruments and instruments, can solve problems such as difficult implementation of technological means, and achieve the effects of reducing horn failures, simple installation and debugging, and reducing waterproof costs

Active Publication Date: 2015-10-14
湖北三环汽车电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From 1.2mm to 1.15mm, there is only a difference of 0.05mm, which is difficult to achieve through technological means

Method used

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  • Static iron core and motor vehicle electric horn provided with the static iron core
  • Static iron core and motor vehicle electric horn provided with the static iron core
  • Static iron core and motor vehicle electric horn provided with the static iron core

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Below in conjunction with accompanying drawing, the present invention is further described: as Figure 5 , Image 6 As shown, a static iron core for a basin-type motor vehicle electric horn includes a thin part 15 and a thick part 16, and the thin part 15 is externally provided with an external thread 17 for connecting with the chassis, and the diameter of the thick part 16 is approximately Smaller than the diameter of the inner hole in the center of the bobbin.

[0037] A pot-type motor vehicle electric horn, comprising a chassis 4, a coil 5, a coil bobbin 6, a diaphragm 7, a moving armature 8, a contact intermittent mechanism 10 and a static iron core 13, and the coil bobbin 6 is installed on the chassis 4 In the inner cavity, one end of the static iron core 13 is placed in the central inner hole of the coil bobbin, and is in dynamic fit with the central inner hole of the coil bobbin 6 with a small gap, and the other end is screwed to the chassis 4, which One end of...

Embodiment 2

[0044] Such as Figure 7 , Figure 8 As shown, a static iron core for a snail-shaped motor vehicle electric horn includes a thin portion 15 and a thick portion 16, the thin portion 15 is externally provided with an external thread 17 for connecting with the chassis, and the diameter of the thick portion 16 is approximately Smaller than the diameter of the inner hole in the center of the bobbin.

[0045] A snail-shaped motor vehicle electric horn, comprising a chassis 4, a coil 5, a bobbin 6, a diaphragm 7, a moving armature 8, a contact intermittent mechanism 10 and a static iron core 13, and the bobbin 6 is installed on the chassis 4 In the inner cavity, one end of the static iron core 13 is placed in the central inner hole of the coil bobbin, and is in dynamic fit with the central inner hole of the coil bobbin 6 with a small gap, and the other end is screwed to the chassis 4, which One end of the inner hole placed in the center of the bobbin 6 has a larger diameter, and th...

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PUM

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Abstract

The invention discloses a stationary iron core and a motor vehicle electric horn provided with the stationary iron core. The stationary iron core comprises a thin part (15) and a thick part (16), wherein an external thread (17) used for connecting a base plate is arranged at the exterior of the thin part (15), and the diameter of the thick part (16) is slightly less than the diameter of a central inner hole of a coil framework. According to the stationary iron core and the motor vehicle electric horn provided with the stationary iron core, the structure is simple, the stationary iron core is not only applicable to mechanical horns with contacts, such as basin-type or snail-type horns, but also applicable to electronic horns without contacts, so that the application range is wide, and the problem of the motor vehicle electric horn on air gap adjustment over the years is solved for the motor vehicle electric horn.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a static iron core and a motor vehicle electric horn provided with the static iron core. Background technique [0002] Although existing motor vehicle electric horns include two kinds of mechanical horns with contacts and non-contact electronic horns, the principle of its generation of electromagnetic attraction is similar with minor differences. [0003] During the vibration process of the sound-generating component, its electromagnetic attraction is not constant. On the one hand, when the voltage is constant, the electromagnetic attraction decreases with the increase of the working air gap; on the other hand, when the air gap is constant, the electromagnetic attraction increases with the increase of the coil voltage. The change law of electromagnetic attraction with the size of the working air gap is called the attraction characteristic. In the motor vehicle electric horn,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10K9/12
Inventor 李正明
Owner 湖北三环汽车电器有限公司
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