Camera module and bracket thereof

Abstract

The invention relates to a camera module and a bracket thereof. The bracket comprises a barrel, a mounting plate and a voice coil motor, wherein the barrel is provided with a first end face and a second end face; the mounting plate is provided with a first surface and a second surface; the mounting plate is arranged in the barrel; the first surface and the first end face are flush with each other, and construct a connection surface; the mounting plate is provided with a light hole penetrating through the first surface and the second surface; the light hole is used for accommodating an infrared cut-off filter of the camera module; the connection surface is used for connecting the voice coil motor of the camera module; the second end face is used for connecting a circuit board of the camera module; the mounting plate is provided with an air escape hole penetrating through the first surface and the second surface; the air escape hole is independent of the light hole, and is positioned in the periphery of the light hole; along a direction from the first surface to the second surface, a sudden change position exists on the air escape hole; and the inner diameter of the air escape hole in the sudden change position is smaller than the inner diameter of the air escape hole in first surface. Through adoption of the camera module with the bracket, the phenomena of glue slippage and glue leakage can be avoided effectively, and ideal imaging quality is realized.

Description

technical field [0001] The invention relates to the technical field of camera equipment, in particular to a camera module and its bracket. Background technique [0002] A miniature camera module with focusing function usually includes a bracket, an infrared cut filter, a circuit board, an image sensor chip, a lens, and a voice coil motor for realizing the focusing function. The bracket has a light-transmitting hole that runs through its upper and lower surfaces, the infrared cut-off filter is arranged in the light-transmitting hole, the circuit board is arranged at one end of the bracket, and the circuit board, the infrared cut-off filter and the bracket cooperate to form a closed receiving cavity . The image sensor chip is arranged on the circuit board and accommodated in the receiving cavity. The voice coil motor is arranged on the end of the bracket away from the circuit board, the lens is installed in the voice coil motor, and the voice coil motor drives the lens to ex...

AI Technical Summary

Problems solved by technology

However, in the actual production process, it was found that when the camera module is assembled using this method, slipping and leakage of glue are prone to occur, resulting in part of the liquid glue dripping to the image sensor chip through the escape hole, which in turn leads to the failure of the camera module.

Moreover, through statistical user feedback, it is found that the imaging quality of the camera module is not ideal.

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