Shake correction unit, optical unit, and smartphone

Patent metadata

Field	Value
Publication number	US-11856296-B2
Application number	US-202217679094-A
Country	US
Kind code	B2
Filing date	Feb 24, 2022
Priority date	Feb 25, 2021
Publication date	Dec 26, 2023
Grant date	Dec 26, 2023

Abstract

In a shake correction unit, a first circuit board has a first portion extending from a first side to a second side in a direction, a second portion extending from the second side to the first side in the direction, and a bent portion in which an end portion on the second side of the second portion is bent with respect to an end portion on the second side of the first portion. A second circuit board has a first portion extending from the second side to the first side in the direction, a second portion extending from the first side to the second side in the direction, and a bent portion in which an end portion on the first side of the second portion is bent with respect to an end portion on the first side of the first portion.

First claim

What is claimed is:

1. A shake correction unit that corrects a shake of an optical module having at least an imaging element, the shake correction unit comprising:
a movable body;
a fixed body that movably supports the movable body; and
a circuit board connected to the movable body,
wherein
the movable body is rotatable about at least a first rotation axis extending in a first direction,
the circuit board includes a first circuit board and a second circuit board,
the first circuit board has
a first end portion connected to the movable body on a first side in a second direction orthogonal to the first direction with respect to the movable body, and
a second end portion that is connected to the fixed body,

the second circuit board has
a first end portion connected to the movable body on the first side in the second direction with respect to the movable body, and
a second end portion that is connected to the fixed body,

the first circuit board has
a first portion extending from a first side in a third direction orthogonal to each of the first direction and the second direction to a second side in the third direction,
a second portion extending from the second side in the third direction to the first side in the third direction, and
a third direction bent portion in which an end portion on the second side in the third direction of the second portion is bent in the third direction with respect to an end portion on the second side in the third direction of the first portion, and

the second circuit board has
a first portion extending from the second side in the third direction to the first side in the third direction,
a second portion extending from the first side in the third direction to the second side in the third direction, and
a third direction bent portion in which an end portion on the first side in the third direction of the second portion is bent in the third direction with respect to an end portion on the first side in the third direction of the first portion.

2. The shake correction unit according to claim 1 , wherein
in the first circuit board,
the first portion extends from a first side in the second direction and the first side in the third direction orthogonal to each of the first direction and the second direction to a second side in the second direction and the second side in the third direction,
the second portion extends from the first side in the second direction and the second side in the third direction to the second side in the second direction and the first side in the third direction, and
the third direction bent portion has an end portion on the first side in the second direction and on the second side in the third direction of the second portion bent in the third direction with respect to an end portion on the second side in the second direction and on the second side in the third direction of the first portion, and

in the second circuit board,
the first portion extends from the first side in the second direction and the second side in the third direction to the second side in the second direction and the first side in the third direction,
the second portion extends from the first side in the second direction and the first side in the third direction to the second side in the second direction and the second side in the third direction, and
the third direction bent portion has an end portion on the first side in the second direction and on the first side in the third direction of the second portion bent in the third direction with respect to an end portion on the second side in the second direction and on the first side in the third direction of the first portion.

3. The shake correction unit according to claim 1 , wherein
a distance from the second end portion of the first circuit board connected to the fixed body to the first end portion of the first circuit board is equal to a natural length from the first end portion of the first circuit board to the second end portion, and
a distance from the second end portion of the second circuit board connected to the fixed body to the first end portion of the second circuit board is equal to a natural length from the first end portion of the second circuit board to the second end portion.

4. The shake correction unit according to claim 1 , wherein
the first circuit board and the second circuit board are plane symmetric with respect to a reference plane having a normal extending in the third direction.

5. The shake correction unit according to claim 1 , wherein
a straight line connecting a center along the third direction of the first end portion of the first circuit board and a center along the third direction of the second end portion of the first circuit board is parallel to a straight line connecting a center along the third direction of the first end portion of the second circuit board and a center along the third direction of the second end portion of the second circuit board.

6. The shake correction unit according to claim 1 , wherein
the second end portion of the first circuit board is located on the second side in the second direction with respect to the first end portion of the first circuit board, and
the second end portion of the second circuit board is located on the second side in the second direction with respect to the first end portion of the second circuit board.

7. The shake correction unit according to claim 1 , wherein
the third direction bent portion of the first circuit board has a fold, and
the third direction bent portion of the second circuit board has a fold.

8. The shake correction unit according to claim 1 , wherein
the first circuit board is located on the second side in the third direction with respect to the second circuit board,
the third direction bent portion of the first circuit board includes
a first outer bent portion,
a first inner bent portion located closer to the second end portion than the first outer bent portion,
a second outer bent portion located closer to the second end portion than the first inner bent portion,
a second inner bent portion located closer to the second end portion than the second outer bent portion, and
a third outer bent portion located closer to the second end portion than the second inner bent portion, and

in the first circuit board, the second outer bent portion and the third outer bent portion are located further on the second side in the third direction than the first outer bent portion, and
the third direction bent portion of the second circuit board includes
a first outer bent portion,
a first inner bent portion located closer to the second end portion than the first outer bent portion,
a second outer bent portion located closer to the second end portion than the first inner bent portion,
a second inner bent portion located closer to the second end portion than the second outer bent portion, and
a third outer bent portion located closer to the second end portion than the second inner bent portion, and

in the second circuit board, the second outer bent portion and the third outer bent portion are located further on the first side in the third direction than the first outer bent portion.

9. The shake correction unit according to claim 1 , wherein
the first circuit board has
a first direction extended first portion extending from a first side in the first direction to a second side in the first direction,
a first direction extended second portion extending from the second side in the first direction to the first side in the first direction, and
a first direction bent portion connected to each of an end portion on the second side in the first direction of the first direction extended first portion and an end portion on

Assignees

• Nidec Corp

Inventors

• Horio naofumi
• Kimura Soichiro
• Ono Shinri
• Sazai Kazuhiro

Classifications

• H04N23/687 Primary

  by shifting the lens or sensor position · CPC title

• H04N23/54

  Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils · CPC title

• H05K1/0274

  Optical details, e.g. printed circuits comprising integral optical means (H05K1/0269 takes precedence; coupling light guides with opto-electronic components G02B6/42) · CPC title

• H05K1/14

  Structural association of two or more printed circuits (providing electric connection to or between printed circuits H05K1/11, H01R12/00) · CPC title

• H01F7/02

  Permanent magnets {[PM]} · CPC title