Brushless direct-current motor and circuit board quick connecting device

Abstract

The invention provides a brushless direct-current motor and circuit board quick connecting device, relating to a motor device; the existing brushless direct-current motor and circuit board quick connecting device has high production cost and complex dismounting process; the quick connecting device comprises an electric-conduction contact pin (1) electrically connected with a motor winding, and a connector (2) which is matched with the electric-conduction contact pin (1) for being fixed on the connector (2) of a circuit board (3), the connector (2) comprises a connecting base (21) and a plurality of metal spring plates (22) which can clamp the electric-conduction contact pin (1) and is arranged on the connecting base (21), and the spring plates (22) are electrically connected with the circuit board (3); the circuit board (3) is inserted in an insertion cavity formed by the spring plates, so as to realize dismountable connection, achieve the purpose of the electrical connection of the winding and the circuit board and discard the connecting mode of manual welding; in addition, single-surface routing is carried out to distribute the board, so as to save the manufacturing cost of a printed circuit board; in addition, the production, assembly and maintaining efficiency can be improved.

Description

【Technical field】 [0001] The invention relates to a motor device, in particular to a connection device between a motor and a circuit board. 【Background technique】 [0002] In the control scheme built into the printed circuit board of the brushless DC motor, the Hall element of the printed circuit board of the brushless DC motor must generally be installed on the side of the permanent magnet rotor of the motor to reliably measure the rotor position. In the manufacturing process of the brushless DC motor, the printed circuit board with the Hall element should be installed on the motor body, and the printed circuit board should be removed from the motor body during maintenance. In the manufacturing process, the connection between the printed circuit board and the various windings of the motor must be considered. When the printed circuit board is connected, it is necessary to ensure that the connection is well-conducted, so that a reliable connection between the motor winding a...

AI Technical Summary

Problems solved by technology

Although this connection method can ensure a reliable connection between the printed circuit board and the motor winding and the electrical signal at the connection can pass through well, it must be placed on the other side of the SMD Hall element. To weld the windings of the motor, so the printed circuit board must be designed as a double-sided board, which increases the manufacturing cost of the printed circuit board

Manual welding is required during the assembly of printed circuit boards, which increases manpower and process costs and reduces production efficiency

When disassembling the printed circuit board for motor maintenance, it is necessary to manually suck out the solder from the solder joints to disassemble the printed circuit board, which is not suitable for batch operations during motor maintenance

[0004] Therefore, the existing brushless DC motor circuit board connection method has disadvantages such as high production cost and complicated disassembly process during motor production and manufacturing.

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