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Connecting structure of mutual inductor and wiring terminal button, manufacturing method and instrument

A technology of connection structure and manufacturing method, which is applied in the field of connection structure between transformers and terminal buttons, can solve the problems that the welding hot-melt process is difficult to achieve consistency, affects the normal use of devices, and is not stable enough, so as to improve the connection Consistency, reduce contact resistance, reduce the effect of power consumption

Inactive Publication Date: 2020-02-14
ZHEJIANG YONGTAILONG ELECTRONICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of connection structure needs to be soldered with silver solder at the contact point between the connection end of the device and the step or side surface of the terminal button, and the surface after welding needs to be cleaned and anti-oxidation treatment; especially when the surface of the terminal button is electroplated, the electroplating Under high-temperature welding, the layer sometimes breaks away from the base material, loosens, and falls off, which affects the normal use of the device. For example, there is dirt on the surface of the terminal button, and there is false welding at the welding place. It is difficult to achieve consistency in the welding hot-melt process, for example When used as measurement, metering and control components, the accuracy and stability are not high enough

Method used

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  • Connecting structure of mutual inductor and wiring terminal button, manufacturing method and instrument
  • Connecting structure of mutual inductor and wiring terminal button, manufacturing method and instrument
  • Connecting structure of mutual inductor and wiring terminal button, manufacturing method and instrument

Examples

Experimental program
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Effect test

Embodiment 1

[0068] Embodiment 1: When the diameter of the primary current wire 2 is φ3.5mm, the thread diameter of the connection hole 321 is M4.0mm, the depth of the connection hole 321 is 10.0mm, and the outer diameter of the columnar body 32 is φ7.0-8.5mm, both Connected contact resistance 0-5uΩ.

Embodiment 2

[0069] Embodiment 2: When the diameter of the primary current wire 2 is φ5.0mm, the thread diameter of the connection hole 321 is M6.0mm, the depth of the connection hole 321 is 9.0mm, and the outer diameter of the columnar body 32 is φ8.5-10.0mm, both Connected contact resistance 0-5uΩ.

Embodiment 3

[0070] Embodiment 3: When the diameter of the primary current wire 2 is φ6.0mm, the thread diameter of the connection hole 321 is M7.0mm, the depth of the connection hole 321 is 8.0mm, and the outer diameter of the columnar body 32 is φ10.5-12.5mm, both Connected contact resistance 0-5uΩ.

[0071] Since this product is a power device that requires large-scale production and application, it has very high requirements for the stability of its own power transmission and adaptability to the environment:

[0072] On the one hand, in the process of use, if there is a large current input, or a long-term current input, it is easy to cause high temperature in the connection structure between the transformer and the terminal button, and the connection structure between the transformer and the terminal button at high temperature The safety and stability of the environment are related to the measurement accuracy of the electric energy meter, and in serious cases, it is related to the safe...

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Abstract

The invention relates to a connecting structure of a mutual inductor and a wiring terminal button, a manufacturing method and an instrument. The connecting structure comprises a mutual inductor, a primary current line and a wiring terminal button. A connecting hole used for being in butt joint with the primary current line is formed in one axial end of the wiring terminal button, a wiring hole used for being electrically connected with the outside is formed in the other axial end of the wiring terminal button, and meshing teeth are arranged on the inner side wall of the connecting hole of thewiring terminal button. The mutual inductor sleeves the primary current line. The primary current line is inserted into the connecting hole, and the hardness of the meshing teeth is larger than that of the primary current line. After the connecting hole of the wiring terminal button is pressed by an external machine, the meshing teeth are completely embedded into the primary current line inwards to achieve or approach zero-resistance contact. Through the arrangement, electric energy can be saved, the manufacturing cost of the mutual inductor can be reduced, the connection consistency can be improved, and the electricity use is stable and reliable.

Description

technical field [0001] The present invention relates to a connection structure of a transformer and a terminal button used in instruments and meters, a manufacturing method thereof and an instrument thereof, especially a connection structure of a transformer and a terminal button suitable for the field of electric energy transmission, its manufacturing method and its instrumentation. Background technique [0002] Transformers are widely used in the fields of electronics and automation control, such as communication systems, measurement or metering components. Therefore, the connection structure of transformers and terminal buttons has a broad market in the world. According to incomplete statistics, the global annual sales of such products exceed 50 billion US dollars. [0003] In the prior art, the most commonly used connection means between the transformer and the terminal button of this wiring method: first, a step is provided at one end of the terminal button, and a scre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R4/20H01R4/36H01R11/26H01R43/00H01R43/048H01R43/16H01F27/28H01F38/20G01R15/18
CPCH01R4/206H01R11/26H01R4/36H01R43/00H01R43/16H01R43/048H01F27/28H01F38/20G01R15/183H01R2201/20
Inventor 朱永虎姚昱
Owner ZHEJIANG YONGTAILONG ELECTRONICS
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