Base with coil, periscopic voice coil motor and manufacturing method thereof

Abstract

The invention relates to a base with a coil, and the base comprises: a rectangular insulating base, a metal circuit, a coil and an electronic element, wherein the metal circuit is embedded and formed in the insulating base, the coil and the electronic element are electrically connected to the metal circuit, and the insulating base is coated and formed on the metal circuit in a one-time injection molding manner, the insulating base is horizontally arranged and is provided with a peripheral side face arranged on the periphery and an upper surface, the coil is arranged on the upper surface, and the base comprises an insulation frame wrapping the insulating base and the metal circuit in a secondary injection molding mode, And the insulation frame is provided with a frame body part and a vertical part, wherein the frame body part integrally covers the peripheral side surface of the insulating base in a closed manner and is horizontally arranged, and the vertical part vertically extends from the periphery of the upper surface of the frame body part. According to the invention, the technical problem that the coil and the electronic element are horizontally mounted on the basis that the metal circuit has a vertical part on the periphery of the base is solved, and the degree of freedom of design of the periscopic voice coil motor is improved.

Description

technical field [0001] The invention relates to the technical field of a base with a coil, a periscope voice coil motor and a manufacturing method thereof, in particular to a base used in the field of electronic equipment, a periscope voice coil motor and a manufacturing method thereof. Background technique [0002] Existing bases and voice coil motors with coils usually include bases, metal circuits injected into the bases, electronic components welded to the metal circuits, coils formed by winding or mounted and assembled, and interconnected with the coils. Actuating components such as magnetic structures. Generally, voice coil motor assembly manufacturers need to electrically assemble the above basic components. In order to match the layout and installation requirements of various components, the layout of each component is usually difficult, and some additional assembly space needs to be reserved. For transfer components, such as flexible printed circuit boards (FPC, Fl...

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to automate the integration of electronic components (IC, Integrated Circuit) or coils on the vertical surface, requiring cumbersome manual operations, low efficiency, and poor quality stability

And when ICs or coils are integrated on a base located on a horizontal plane, they can only be assembled one by one, and the automation efficiency of assembly is very low.

And now all the SMT placement equipment on the market handle the base separately, there is no batch processing

When installing coils or electronic components on a horizontal plane in a periscope voice coil motor, it is difficult to assemble coils or electronic components in the space inside the four pillars on the premise that there are four pillars provided around the insulating base. , and it is difficult to automate

[0005] The above problems mainly occur when the existing voice coil motor manufacturers produce voice coil motors. They need to purchase parts and then position and assemble components such as flexible circuit boards / shrapnel. The positioning, processing and assembly processes are complicated and the operating space is limited. , it is easy to cause defective parts, which in turn causes the overall cost to be too high

At the same time, since the combination of these outsourced parts is not considered when reproducing them, and the problem of combination space design is ignored, some installation positions need to be reserved when designing the voice coil motor, resulting in waste of space and making the product The structure cannot be compact and miniaturized

And because the original coil generally needs to be integrated with the metal circuit in the base by integrating on an independent FPC, the FPC itself is very thin and fragile, and the cost is very high. It is necessary to wind the coil or stick it on the FPC. It is very difficult to install the coil, and it is easy to cause defects, and the number of coils that can be wound and the thickness of the coil will be affected by the thickness of the FPC, which will affect the current of the coil and increase the loss of the circuit.

In addition, the coil is wound or mounted on an independent FPC. Since the FPC is very soft, when the electronic device falls, the voice coil motor with the coil fixed on the FPC is likely to cause overall failure due to its weak integration strength.

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