7results about How to "Reduce magnetic interference" patented technology

The invention provides a semiconductor packaging structure and a manufacturing method thereof. The semiconductor packaging structure comprises the components of a substrate which is provided with a first surface and a second surface which are oppositely arranged along the thickness direction of the substrate, the first surface is provided with a groove, the substrate is also internally provided with a first via hole, and the first via hole penetrates through the first surface and the second surface and is located at the side of the groove; the first shielding layer covers the bottom wall and the side wall of the groove; the chip is arranged in the groove, the chip is provided with a pin, and the pin is electrically connected with the first via hole; and the second shielding layer covers at least part of the surface, deviating from the bottom wall of the groove, of the chip. The semiconductor packaging structure is used for achieving the effect of improving magnetic shielding comprehensiveness and storage density.

The application provides a motor, a camera module and an electronic device. The motor comprises a base, a first mover and a second mover. The first mover is used for carrying an optical path folding element, and the second mover is used for carrying a lens group. The motor drives the first mover to rotate relative to the base by a magnetic drive mode to realize optical anti-shake, and drives the second mover to displace relative to the base by the magnetic drive mode to realize optical focusing. The application designs the magnetic pole distribution of a magnetic stone in a magnetic drive structure for driving the first mover and the second mover to move, so as to reduce the interference of the magnetic drive magnetic field of the second mover on the movement of the first mover, thereby improving the stability of optical anti-shake and being beneficial to improving the shooting quality.

A stator coil of a rotating electric machine is formed by a concentric winding method. A stator coil is configured by inserting and connecting hairpin-shaped coil pieces (10, 11, 20, 21, 30, 31) formed from flat wires from one side and the other side in the axial direction. The length of the linear part of the coil piece is half of the axial length of the stator core, a convex shape or a concave shape is formed at the two leg end parts, and the convex part and the concave part are embedded. The coil is composed of three kinds of coil pieces: central coil pieces (10, 11) that connect the slots in the circumferential direction in the vicinity of the radial center of the slots; inner coil pieces (20, 21) that are connected in the circumferential direction so that coil end portions are biased inward in the radial direction than the radial positions of the slots; and outer coil pieces (30, 31) that are connected in the circumferential direction so as to be biased outward in the radial direction. Concentric coil portions formed by connected central coil pieces (10, 11), coil pieces (20, 31), and coil pieces (30, 21) are made to have the same length, so that the resistance values are made to be consistent, and the assemblability is improved.

The embodiments of the present invention aim to provide an aperture module and a camera module including the aperture module that can reduce magnetic interference between the AF magnet and the ring magnet. By appropriately adjusting the magnetic pole positions of the AF magnet and the ring magnet, magnetic interference is reduced, making the drive of the aperture module smoother. The correlation between the number of magnetic poles of the AF magnet and the ring magnet can be utilized to ensure the diversity of the number or position of multiple coils, fixed shafts, and rolling components inside the aperture module by increasing the number of magnetic poles of the second magnet. This allows for more free design of the aperture module. Furthermore, two or more position sensors can be asymmetrically arranged according to the coil arrangement to more accurately measure the rotational displacement of the ring magnet. The thrust of the aperture module can also be adjusted by the size, number, and number of turns of the coils.

The present invention relates to a lens driving device, a camera module including the lens driving device, and an optical apparatus. Embodiments include a substrate, a housing including first and second side portions facing each other and third and fourth side portions facing each other, a bobbin arranged inside the housing, a first coil arranged on the bobbin, and a magnet arranged in the housing, the substrate including a second coil facing the magnet, the magnet including a first magnet arranged on the first side portion of the housing, a second magnet arranged on the second side portion of the housing, and a third magnet arranged on the third side portion of the housing, the second coil including a first coil unit facing the first magnet, a second coil unit facing the second magnet, and a third coil unit facing the third magnet, the first to third coil units each including a wire having a plurality of turns, and the wire of the third coil unit is narrower in width than the wire of the first coil unit.

The utility model discloses a power supply signal female end connector, which comprises a first power supply module, a telecommunication module, a second power supply module and a positioning module, an inclined connecting section is arranged at one end, connected with a terminal main body part, of a terminal connecting part, and a material digging groove is arranged in the middle of the terminal connecting part. And the material digging groove extends towards the middle part of the terminal connecting part from the inclined connecting section. The arrangement of the anti-back structure can avoid the influence of reverse thrust caused by plug-in on the first power supply terminal and the second power supply terminal, and the anti-back effect is good. The positioning part ensures that the connector can be accurately plugged into an external plug, and the signal transmission is more stable. The width of the terminal connecting part is equal to the width of the terminal main body part, so that the strength of the signal terminal connecting part of the signal terminal is increased, the situation that the signal terminal connecting part is damaged when the signal terminals are inserted in a butt joint mode is avoided, and meanwhile magnetic field interference of the signal terminals on adjacent signal terminals in the signal transmission process is reduced.

An embodiment of the present invention aims to provide an aperture module capable of reducing magnetic interference between an AF magnet and a ring magnet by appropriately adjusting magnetic pole positions of the AF magnet and the ring magnet, and a camera module including the aperture module, so that driving of the aperture module is smoother, and the aperture module is more compact. The aperture module can be designed more freely by increasing the number of magnetic poles of the second magnet by using the correlation between the number of magnetic poles of the AF magnet and the number of magnetic poles of the annular magnet to ensure the diversity of the number or positions of the plurality of coils, fixed shafts, and rolling members inside the aperture module. And more than two position sensors can be asymmetrically arranged according to the arrangement of the coils so as to more accurately measure the rotation displacement of the annular magnet, and the thrust of the aperture module can be adjusted through the size, the number and the number of turns of the coils.