Base assembly for micro-driving motor

Abstract

The invention discloses a base assembly for a micro-driving motor. The base assembly comprises an insulation base, two conducting lower leaf springs and a pressing and connecting element, wherein the pressing and connecting element is used for pressing and connecting the conducting lower leaf springs onto the base, a gap is left between the two conducting lower leaf springs, the pressing and connecting element comprises a frame-shaped gasket body and an insulation layer, the frame-shaped gasket body is made of metal materials, and the insulation layer is positioned between the upper surface of the lower leaf springs and the lower surface of the gasket body. The base assembly has the advantages that the gasket body is made of metal, and addition, the short circuit of the two lower leaf springs is avoided through the insulation layer, so on the premise of maintaining the gasket size, the intensity and the use effect of the lower gasket are effectively ensured, in addition, the intensity is higher, the damage cannot be generated in the manufacture and assembly processes, the non-defective product rate is effectively improved, and in addition, the sufficient pressure can be provided for tightly pressing the lower leaf springs.

Description

technical field [0001] The invention belongs to the technical field of micro-motor structure design, and in particular relates to a base assembly for a micro-drive motor. Background technique [0002] Micro camera devices have been widely used in mobile phones and notebook computers, and the micro drive motors (also called lens drive motors) therein are getting smaller and smaller. [0003] Traditional miniature drive motors generally include a housing, an upper gasket, an upper spring, a lens carrier, a magnet assembly, a coil assembly, a lower gasket, a lower spring assembly, and an insulating base; the lower spring assembly includes two conductive lower springs , there is a gap between the two lower spring pieces to form an open circuit. The lower point plate presses the outer edge of the lower spring leaf assembly, thereby crimping the conductive lower spring leaf on the base. [0004] In order to avoid the short circuit of the two lower spring pieces, the traditional ...

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Problems solved by technology

[0004] In order to avoid the short circuit of the two lower spring pieces, the traditional product uses plastic to make the lower gasket. Because the size of the lower gasket is small and the thickness is only about 0.5mm, the strength is low. It is very easy to be damaged during the manufacturing and assembly process, and even It is difficult to provide enough pressure to compress the lower spring piece; in another case, in order to improve the strength, the thickness of the lower gasket is made thicker, between 1mm and 2mm, thereby increasing the overall height of the micro drive motor, However, the increased height for this purpose is quite large for micro-drive motors, which directly affects the overall thickness of the final electrical products such as mobile phones made of this product

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