IP Library Granted Patent US 9,733,547
Granted Patent B2
US 9,733,547 · App. 15/067,501 · Granted Aug 15, 2017

Blade driving device and optical apparatus

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Quick Facts
Patent No.
US 9,733,547
App. No.
15/067,501
Granted
Aug 15, 2017
Kind
B2
Abstract

A blade driving device includes: a board including an opening; first and second blades opening and closing the opening; first and second actuators arranged adjacent to each other and respectively driving the first and second blades, and respectively including first and second stators, first and second rotors, and first and second coils; a printed circuit board; and solder portions electrically connecting the first and second coils with the printed circuit board; wherein the solder portions includes: first and second solder portions respectively connecting one end and another end of the first coil with the printed circuit board; and third and fourth solder portions respectively connecting one end and another end of the second coil with the printed circuit board; and the first, second, third, and fourth solder portions face one another.

Claims (89)

1. A blade driving device, comprising:

a board including an opening;

first and second blades opening and closing the opening;

first and second actuators arranged adjacent to each other and respectively driving the first and second blades, and respectively including first and second stators, first and second rotors, and first and second coils;

a printed circuit board; and

solder portions electrically connecting the first and second coils with the printed circuit board,

wherein the solder portions includes:

first and second solder portions respectively connecting one end and another end of the first coil with the printed circuit board; and

third and fourth solder portions respectively connecting one end and another end of the second coil with the printed circuit board; and

the first, second, third, and fourth solder portions face one another,

the blade driving device further comprising a holder supporting the first and second actuators and attached to the board,

wherein the holder is formed with a recess portion facing the board, and

wherein the solder portions protrude to the board side and are located within the recess portion.

2. The blade driving device of claim 1 , wherein the printed circuit board includes:

an exposed portion exposed to an outside of the holder; and

an inserted portion inserted into the recess portion and connected with the solder portions.

3. The blade driving device of claim 1 , comprising:

a first output member rotating together with the first rotor; and

a first drive member engaged with the first output member and driving the first blade,

wherein the first output member and the first drive member are at least partially located between at least part of the first stator and the first coil, and the board, and

the recess portion is at least partially located between at least part of the first stator and the first coil, and the board.

4. The blade driving device of claim 3 , wherein an axis of the first drive member overlaps the first stator and the first coil, and is positionally displaced from an axis of the first rotor.

5. An optical apparatus comprising a blade driving device,

the blade driving device comprising:

a board including an opening;

first and second blades opening and closing the opening;

first and second actuators arranged adjacent to each other and respectively driving the first and second blades, and respectively including first and second stators, first and second rotors, and first and second coils;

a printed circuit board; and

solder portions electrically connecting the first and second coils with the printed circuit board,

wherein the solder portions includes:

first and second solder portions respectively connecting one end and another end of the first coil with the printed circuit board; and

third and fourth solder portions respectively connecting one end and another end of the second coil with the printed circuit board; and

the first, second, third, and fourth solder portions face one another, the blade driving device further comprising a holder supporting the first and second actuators and attached to the board,

wherein the holder is formed with a recess portion facing the board, and

wherein the solder portions protrude to the board side and are located within the recess portion.

6. A blade driving device, comprising:

a board including an opening;

first and second blades opening and closing the opening;

first and second actuators arranged adjacent to each other and respectively driving the first and second blades, and respectively including first and second stators, first and second rotors, and first and second coils;

a printed circuit board; and

solder portions electrically connecting the first and second coils with the printed circuit board,

wherein the solder portions includes:

first and second solder portions respectively connecting one end and another end of the first coil with the printed circuit board; and

third and fourth solder portions respectively connecting one end and another end of the second coil with the printed circuit board; and

the first, second, third, and fourth solder portions face one another, and

wherein the first, second, third, and fourth solder portions are sandwiched between a first bobbin of the first coil and a second bobbin of the second coil, when viewed in an optical axis direction.

7. An optical apparatus comprising a blade driving device,

the blade driving device comprising:

a board including an opening;

first and second blades opening and closing the opening;

first and second actuators arranged adjacent to each other and respectively driving the first and second blades, and respectively including first and second stators, first and second rotors, and first and second coils;

a printed circuit board; and

solder portions electrically connecting the first and second coils with the printed circuit board,

wherein the solder portions includes:

first and second solder portions respectively connecting one end and another end of the first coil with the printed circuit board; and

third and fourth solder portions respectively connecting one end and another end of the second coil with the printed circuit board; and

the first, second, third, and fourth solder portions face one another, and

wherein the first, second, third, and fourth solder portions are sandwiched between a first bobbin of the first coil and a second bobbin of the second coil, when viewed in an optical axis direction.

8. A blade driving device, comprising:

a board including an opening;

first and second blades opening and closing the opening;

first and second actuators arranged adjacent to each other and respectively driving the first and second blades, and respectively including first and second stators, first and second rotors, and first and second coils;

a printed circuit board; and

solder portions electrically connecting the first and second coils with the printed circuit board,

wherein the solder portions includes:

first and second solder portions respectively connecting one end and another end of the first coil with the printed circuit board; and

third and fourth solder portions respectively connecting one end and another end of the second coil with the printed circuit board; and

the first, second, third, and fourth solder portions face one another, and

wherein:

first and second drive members are provided,

rotation of a first rotor drives the first drive member to drive the first blade,

rotation of a second rotor drives the second drive member to drive the second blade, and

the first, second, third, and fourth solder portions are sandwiched between the first and second drive members when viewed in an optical axis direction.

9. An optical apparatus comprising a blade driving device,

the blade driving device comprising:

a board including an opening;

first and second blades opening and closing the opening;

first and second actuators arranged adjacent to each other and respectively driving the first and second blades, and respectively including first and second stators, first and second rotors, and first and second coils;

a printed circuit board; and

solder portions electrically connecting the first and second coils with the printed circuit board,

wherein the solder portions includes:

first and second solder portions respectively connecting one end and another end of the first coil with the printed circuit board; and

third and fourth solder portions respectively connecting one end and another end of the second coil with the printed circuit board; and

the first, second, third, and fourth solder portions face one another, and

wherein:

first and second drive members are provided,

rotation of a first rotor drives the first drive member to drive the first blade,

rotation of a second rotor drives the second drive member to drive the second blade, and

the first, second, third, and fourth solder portions are sandwiched between the first and second drive members when viewed in an optical axis direction.

Assignments (4)
CHANGE OF NAME Recorded Dec 20, 2022
From: SEIKO HOLDINGS KABUSHIKI KAISHA (TRADING AS SEIKO HOLDINGS CORPORATION)
To: SEIKO GROUP CORPORATION
Reel/Frame 062182/0124 →
CHANGE OF ADDRESS Recorded Oct 30, 2019
From: SEIKO PRECISION INC.
To: SEIKO PRECISION INC.
Reel/Frame 050872/0748 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 30, 2019
From: SEIKO PRECISION INC.
To: SEIKO HOLDINGS KABUSHIKI KAISHA (TRADING AS SEIKO HOLDINGS CORPORATION)
Reel/Frame 050873/0971 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 29, 2016
From: TOKURA, SHOICHI; TAKAHASHI, HIROSHI; OISHI, SEIICHI; MURATA, MINORI
To: SEIKO PRECISION INC.
Reel/Frame 038122/0631 →