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Mechanical horn plated resistance film insulation sheet

A technology of insulating sheet and resistive film, applied in the direction of electrical components, sensors, sensor parts, etc., can solve the problems of affecting the conductivity of metal contacts, reducing reliability, and the speaker not working normally, so as to simplify the manufacturing process and reduce the cost. , the effect of saving internal space

Active Publication Date: 2017-07-18
HARBIN GOODTIME ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the metal contact mechanical and electronic horn is working, a large arc will be generated in the air due to the on-off of the metal contact. The existence of such an arc will affect the conductivity of the metal contact and reduce its working reliability. Speaker not working

Method used

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  • Mechanical horn plated resistance film insulation sheet
  • Mechanical horn plated resistance film insulation sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The insulating sheet of the mechanical horn plated with resistive film, its composition includes: carbon oil resistor: 1, the insulating sheet 3 is subjected to via hole 2 copper-clad treatment, and the carbon oil-coated resistive film realizes electrical connection on both sides, which is equivalent to connecting a resistor 5 in parallel at both ends of the insulating sheet, It plays the role of reducing arcing during the working process of the horn.

Embodiment 2

[0024] According to the mechanical horn insulation sheet plated resistance film described in embodiment 1, a resistor is connected in parallel at both ends of the metal contact of the mechanical electric horn to share the current value when part of the metal contact 4 is disconnected, so as to reduce contact arcing, Reduce the effect of metal contact ablation to improve the service life of mechanical and electronic horns.

Embodiment 3

[0026] According to the resistive film plating on the insulating sheet of the mechanical horn described in Embodiment 1, the insulating sheet and the arc-extinguishing resistor are integrated to simplify the process and reduce the cost to the greatest extent.

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PUM

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Abstract

The invention relates to a mechanical horn phenolic laminated cotton board plated resistance film insulation sheet. When the metal contact mechanical and electronic horn is working, a large arc will be generated in the air due to the on-off of the metal contact. The existence of such an arc will affect the conductivity of the metal contact and reduce its working reliability. Horn not working properly. The composition of the present invention includes: a carbon oil resistance film (1), an insulating sheet (3) is treated with via hole copper coating (2), and the carbon oil resistance film (1) is electrically connected on both sides, which is equivalent to connecting a resistor in parallel at both ends of the insulating sheet , Play the role of reducing arcing in the working process of the horn. The invention is applied to mechanical horns.

Description

[0001] Technical field: [0002] The invention relates to a mechanical and electronic horn used for metal contacts; in particular, it relates to a resistive film-plated insulation sheet for mechanical horns used for eliminating arcs at both ends of the metal contacts. [0003] Background technique: [0004] When the metal contact mechanical and electronic horn is working, a large arc will be generated in the air due to the on-off of the metal contact. The existence of such an arc will affect the conductivity of the metal contact and reduce its working reliability. Horn not working properly. [0005] Invention content: [0006] The purpose of the present invention is to provide a mechanical horn phenolic laminated cotton board plated resistance film insulating sheet. [0007] The purpose of the present invention is achieved like this: [0008] The insulating sheet of the mechanical horn plated with resistive film consists of: carbon oil resistive film, the insulating sheet is...

Claims

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Application Information

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IPC IPC(8): H04R1/00
Inventor 赵宏伟
Owner HARBIN GOODTIME ELECTRONICS
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