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A process method for electrical connection of accelerometer torque device

An accelerometer and electrical connection technology, used in the measurement of acceleration, speed/acceleration/impact measurement, metal processing equipment, etc. It is suitable for mass production, saves the cost of tooling consumables, and has the effect of simple welding method

Active Publication Date: 2016-01-13
航天科工惯性技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the ground wire in the electrical connection of the accelerometer torquer is realized by pressure welding between the terminal post and the excitation ring. This process has some defects: 1) This process uses a momentary application of large current to realize the connection between the metals, requiring welding The part has enough operating space and strength. When the pressure welding process parameters are adjusted or improperly operated, problems such as unreliable pressure welding, thermal deformation of tooling or parts, and scrapping are prone to occur, which is not conducive to the production of accelerometers.

Method used

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  • A process method for electrical connection of accelerometer torque device

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Embodiment 1

[0021] For the form of the excitation ring 1 and the terminal 2 to be welded in the torque converter, refer to figure 1 As shown, according to the welding method for realizing the electrical connection of the accelerometer torque device provided by the present invention, the binding post 2 and the excitation ring 1 are fixed by glue bonding before welding, and the distance between the two welding parts is 0.2mm; the laser welding With laser vertical incidence, the laser welding spot 3 fully covers the welding part, and the melting depth of the laser welding spot 3 is 0.5 mm; the welding area of ​​the terminal post 2 and the excitation ring 1 after welding is 0.2 mm 2 , the on-resistance after soldering is 0.2Ω.

Embodiment 2

[0023] According to the present invention as described in Embodiment 1, the terminal post 2 and the excitation ring 1 are fixed by glue before welding, the difference is that the distance between the two welding parts is 0.3mm; the laser welding uses a vertical laser Incident, the laser welding spot 3 fully covers the welding part, the melting depth of the laser welding spot 3 is 0.7mm; the welding area after the welding of the terminal post 2 and the excitation ring 1 is 0.5mm 2 , the on-resistance after soldering is 0.15Ω.

Embodiment 3

[0025] According to the present invention as described in Embodiment 1, the terminal post 2 and the excitation ring 1 are fixed by glue bonding before welding, the difference is that the distance between the two welding parts is 0.4mm; the laser welding uses a vertical laser Incidence, the laser welding spot 3 fully covers the welding part, the melting depth of the laser welding spot 3 is 0.8mm; the welding area after the welding of the terminal post 2 and the excitation ring 1 is 0.6mm 2 , the on-resistance after welding is 0.12Ω.

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Abstract

The invention relates to a technique method for electrical connection of an accelerometer torquer, in particular to the technique method of connection between a motivation ring and a binding post of the motivation ring. The method mainly comprises a first step of connecting a welding position of the motivation ring (1) and a welding position of the end portion of the binding post (2) through laser welding to enable a laser beam to be in a vertical incidence state to form a laser welding spot (3) to cover the welding positions. Compared with the prior pressure welding technology, the technique method has the advantages that the problem that strength of operating space and the welding positions affects on the electrical connection of the torquer does no exist, the consuming problem of a pressure welding tool does not exist any more, and tool consumable cost is saved. At the same time, the welding method is simple, the technique is convenient to implement, cost is low, and the product produced through the welding method is suitable for volume production.

Description

Technical field [0001] The invention relates to a technical method for electrical connection of an accelerometer torquer, especially the connection between an excitation ring and a terminal post of a quartz flexible accelerometer torquer. Background technique [0002] Quartz flexible accelerometer is a mechanical pendulum accelerometer, which is widely used in aviation, aerospace, oil exploration and other technical fields. As the power source of the accelerometer and the electrical interface between the machine and the servo circuit, the torquer is an important part of the accelerometer. Gu Ying's "Inertial Navigation Accelerometer Technology Review" was published in "Navigation Missile", 2001; He Tiechun and Zhou Shiqin's "Inertial Navigation Accelerometer" Beijing: National Defense Industry Press. At present, the ground wire in the electrical connection of the accelerometer torquer is realized by pressure welding between the terminal post and the excitation ring. This pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/21G01P15/00
Inventor 杨守安付秀娟郭琳瑞张兰于湘涛胡涛吴楠
Owner 航天科工惯性技术有限公司