Printed circuit board (PCB) assembling structure of alternating-current-direct-current electromagnet

Abstract

The invention discloses a printed circuit board (PCB) assembling structure of an alternating-current-direct-current electromagnet. The PCB assembling structure of the alternating-current-direct-current electromagnet comprises a coil shell used for covering a coil of the electromagnet and a PCB with circuits for converting alternating voltage to direct voltage. Electronic parts and a connecting plate are placed on the PCB. One lateral side of the connecting plate is fixed on the coil shell. Parts such as the electronic parts, the PCB and a protective shell are ingeniously combined together, the PCB can be used in severe environment for a long time by utilizing a forming technology in a mould, and the performance of the PCB is improved. In addition, the structure also reduces the whole height of the PCB, satisfies using requirements of a user, saves glue-pouring time, reduces the rate of defectives and cost of the PCB, and qualitatively improves reliability of the PCB.

Description

Technical field [0001] The invention relates to a PCB board assembly structure of AC and DC electromagnets. Background technique [0002] At present, the PCB board assembly of AC and DC electromagnets generally involves first soldering electronic components to the PCB board, and then fixing the PCB board to the coil housing of the AC electromagnet with screws. Finally, in order to prevent the entry of water or other impurities, resin is used. Filling to protect the components can also be used in harsh environments. But it also has the following drawbacks: ①It is time-consuming, manual glue injection is time-consuming, and glue is required to be applied every few hours. ②Due to sealing problems, sometimes the glue leaks out, which affects the appearance and improves defective products. ③ There are more product parts and more assembly links, which indirectly increases the defective rate of products. ④ The overall height of the connector is elevated, which cannot meet the custome...

AI Technical Summary

Problems solved by technology

But it also has the following defects: ①It is time-consuming, manual glue injection is time-consuming, and glue needs to be dispensed every few hours

②Due to sealing problems, sometimes the glue leaks out, which affects the appearance and improves defective products

③There are many parts in the product, and there are many assembly links, which indirectly increase the defect rate of the product

④The overall height of the connector is increased, which cannot meet the customer's requirements very well (the customer's requirement is to minimize the connector)

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