Imaging lens driving module, camera module and electronic device

An imaging lens driving module, comprising:

• an imaging lens assembly having an optical axis;
• a lens carrier configured to install the imaging lens assembly;
• a frame element disposed corresponding to the lens carrier;
• a ball set disposed between the lens carrier and the frame element, wherein the ball set is physically contacted with the lens carrier and the frame element;
• a wiring substrate disposed on an image side of the imaging lens assembly;
• a resilience wiring sheet configured to connect the lens carrier and the wiring substrate, and comprising:
• a movable end coupled and fixed with the lens carrier without a movement relative to the lens carrier;
• a fixed end coupled and fixed with the wiring substrate without a movement relative to the wiring substrate;
• a connecting portion connected to the movable end;
• and
• an elastic portion connecting the fixed end and the connecting portion, wherein the elastic portion extends in a direction parallel to the optical axis, and comprises:
• at least two meandering branches extending in a direction towards the fixed end, and overlapping each other in a specific direction in view;
• and
• a driving unit configured to drive the lens carrier to move relative to the wiring substrate in a direction parallel to the optical axis or in a direction perpendicular to the optical axis, and comprising:
• a first coil disposed at the movable end of the resilience wiring sheet;
• a second coil disposed on a surface of the wiring substrate;
• and
• a first magnetic element disposed on an assembling portion of the frame element, wherein the first magnetic element faces and is disposed corresponding to both the first coil and the second coil;
• wherein a maximum width of the elastic portion closed to the connecting portion is Wc, a minimum width of each of the at least two meandering branches closed to the fixed end is Wf, and the following conditions are satisfied:
• Wf
• <
• Wc
• ;
• and
• 1.5
• <
• Wc
• /
• Wf
• <
• 16.

An imaging lens driving module, comprising:

• an imaging lens assembly having an optical axis;
• a lens carrier configured to install the imaging lens assembly;
• a frame element disposed corresponding to the lens carrier;
• a ball set disposed between the lens carrier and the frame element, wherein the ball set is physically contacted with the lens carrier and the frame element;
• a wiring substrate disposed on an image side of the imaging lens assembly;
• a resilience wiring sheet configured to connect the lens carrier and the wiring substrate, and comprising:
• a movable end coupled and fixed with the lens carrier without a movement relative to the lens carrier;
• a fixed end coupled and fixed with the wiring substrate without a movement relative to the wiring substrate;
• a connecting portion connected to the movable end;
• and
• an elastic portion connecting the fixed end and the connecting portion, wherein the elastic portion extends in a direction parallel to the optical axis, and comprises:
• at least two meandering branches extending in a direction towards the fixed end, and overlapping each other in a specific direction in view;
• and
• a node, wherein the at least two meandering branches extend in the direction towards the fixed end and converge at the node;
• and
• a driving unit configured to drive the lens carrier to move relative to the wiring substrate in a direction parallel to the optical axis, and comprising:
• a first coil disposed at the movable end of the resilience wiring sheet;
• and
• a first magnetic element disposed on an assembling portion of the frame element, wherein the first magnetic element faces and is disposed corresponding to the first coil;
• wherein a shortest distance between the fixed end and the node in a direction parallel to the optical axis is Hn, a straight length of the elastic portion in a direction along the optical axis is D, and the following conditions are satisfied:
• Hn
• <
• D
• ;
• and
• 0.1
• ≤
• Hn
• /
• D
• ≤
• 0.7
• .