JP5640597B2 - Electrical connection parts and optical equipment - Google Patents

Description

The present invention relates to an electrical connection component and an optical apparatus .

  A flexible printed circuit board is known as an electrical connection component that electrically connects a plurality of electronic components. Patent Document 1 discloses a flexible printed circuit board.

JP-A-62-76694

It is conceivable to electrically connect a plurality of electronic components provided in the electronic device by a flexible printed board. In this case, if the flexible printed circuit board is used as it is, the space occupied by the flexible printed circuit board in the electronic device may be increased. Accordingly, an object of the present invention is to provide a miniaturized electrical connection component and an optical apparatus including the same.

  The present invention solves the above problems by the following means. For ease of understanding, the description will be given with reference numerals corresponding to the drawings showing an embodiment of the present invention, but the present invention is not limited to this.

The electrical connection component according to the present embodiment is an electrical connection component employed in an optical apparatus, and is separated from the metal member (M) and the first and second parts (12, 14) a flexible printed circuit board (10) including a third part (11) continuous with the first and second parts, wherein the first and second parts extend around an optical axis. Yes . Since the first and second parts of the flexible printed circuit board are overlapped with each other, the electrical connection component can be reduced in size.

  In the above configuration, the first part may be provided with a signal wiring, and the second part may be provided with a power supply wiring.

  The said structure WHEREIN: You may provide the insulating member pinched | interposed into the said 1st and 2nd part with the said metal member.

  The said structure WHEREIN: The said 3rd part may be located between the said 1st and 2nd part.

  In the above configuration, a ground wiring may be provided in at least one of the first and second parts.

  In the above configuration, the metal member may be connected to the ground wiring.

The optical apparatus according to this embodiment includes the above-described electrical connection component and a pasting target portion to which the electrical connection component is pasted .

ADVANTAGE OF THE INVENTION According to this invention, the electrical connection component reduced in size and an optical apparatus provided with the same can be provided.

FIG. 1 is an explanatory diagram of a flexible printed circuit board employed in the electrical connection component of the first embodiment. FIG. 2 is a cross-sectional view of the electrical connection component of the first embodiment. 3A and 3B are explanatory diagrams when the electrical connection component of Example 1 is employed in an optical apparatus. FIG. 4 is a front view showing a part of a flexible printed circuit board employed in the electrical connection component of the second embodiment.

  Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. In addition, not all combinations of features described in the embodiments are solving means of the invention.

  FIG. 1 is an explanatory diagram of a flexible printed circuit board 10 employed in the electrical connection component of the first embodiment. The flexible printed board 10 has flexibility and can electrically connect a plurality of electronic components. The flexible printed circuit board 10 has a first part 12 and a second part 14 that are separated into a bifurcated shape. The first part 12 and the second part 14 have parts extending in the same direction alongside each other. A slit S is formed between portions of the first portion 12 and the second portion 14 extending in the same direction. The first part 12 is provided with signal wiring. The second part 14 is provided with power supply wiring. The flexible printed circuit board 10 has a third part 11 that is continuous with the first part 12 and the second part 14. The third part 11 is provided with a connector C1. A connector C2 is provided at the tip of the first portion 12. A connector C3 is provided at the tip of the second portion 14. The connectors C1 to C3 can be connected to connectors of other electronic components.

  FIG. 2 is a cross-sectional view of the electrical connection component of the first embodiment. The electrical connection component 1 according to the first embodiment is folded along the slit S illustrated in FIG. 1, and the first portion 12 and the second portion 14 of the flexible printed circuit board 10 are overlapped. For this reason, the 3rd part 11 shown in FIG. 1 is bent. A noise countermeasure component N is sandwiched between the first part 12 and the second part 14. Therefore, the first part 12 and the second part 14 overlap each other via the noise countermeasure component N. The noise countermeasure component N includes a metal member M and an insulating member I. Here, the metal member M and the insulating member I are integrally formed. The metal member M and the insulating member I overlap each other. Both the metal member M and the insulating member I are formed to be thin. The insulating member I is made of rubber.

  The metal member M is, for example, a copper foil, but may be other than this. For example, the metal member M may be a cut stainless steel fiber or the like.

  The noise countermeasure component N may be one in which the insulating member I and the metal member M are integrally formed. For example, the noise countermeasure component N may be obtained by kneading powdered metal powder into rubber having insulation properties. In addition, after forming the insulating member I and the metal member M separately, you may adhere | attach or fix the insulating member I and the metal member M. The insulating member I and the metal member M may be formed by insert molding.

  The insulating member I is a rubber that is insulative and elastically deformable, but may be other than that. For example, the insulating member I may be urethane foam or the like.

  The first part 12 and the insulating member I are bonded by a double-sided tape T, and the second part 14 and the metal member M are also bonded by a double-sided tape T. In addition, you may connect using the adhesive agent instead of the double-sided tape T. Further, the noise countermeasure component N may be held between the first portion 12 and the second portion 14 by a member such as a resin clip.

  The manufacturing procedure of the electrical connection component 1 will be briefly described. A double-sided tape T is affixed to one surface of the flexible printed board 10 formed in advance. Specifically, the double-sided tape T is affixed to portions of the first portion 12 and the second portion 14 that extend in the same direction. The double-sided tape T is attached so as to cover the slit S. Next, the noise countermeasure component N is wrapped at the slit S so as to be wrapped by the flexible printed circuit board 10. Then, the double-sided tape T is attached to the noise countermeasure component N. Thereby, the electrical connection component 1 is manufactured.

  3A and 3B are explanatory diagrams when the electrical connection component 1 of Example 1 is employed in an optical apparatus. FIG. 3A is a perspective view of the fixed cylinder 30 employed in the optical apparatus, and FIG. 3B is a side view of the fixed cylinder 30. The fixed cylinder 30 is employed in a lens barrel of an optical device.

  The fixed cylinder 30 has a cylindrical shape, and a printed circuit board 35 is fixed to the outer peripheral portion. 3A and 3B, the outer cylinder covering the fixed cylinder 30 is omitted. A glass block 32 is fixed to a base end portion (an end portion on the image sensor side) of the fixed cylinder 30. 3A and 3B, the right side of the fixed cylinder 30 is the subject side, and the left side of the fixed cylinder 30 is the imaging side.

  A movable cylinder 40 that is movable in the direction of the optical axis A is housed and held in the fixed cylinder 30. The movable cylinder 40 holds the lens 42 movably in a plane perpendicular to the direction of the optical axis A by the power of a voice coil motor (not shown). The printed circuit board 35 is mounted with a CPU (not shown) for controlling the operation of the movable cylinder 40. The connector C1 of the flexible printed board 10 is connected to a connector 35c provided on the printed board 35.

  As shown in FIGS. 3A and 3B, the flexible printed circuit board 10 is attached to the outer peripheral surface of the fixed cylinder 30. The part where the first part 12 and the second part 14 overlap is affixed to the proximal end side of the outer peripheral surface of the fixed cylinder 30. In other words, the first part 12 and the second part 14 are attached around the optical axis A. That is, the electrical connection component 1 is affixed on the curved surface. The first part 12 and the second part 14 are wired in the fixed cylinder 30 through a slit formed on the base end side of the fixed cylinder 30 and connected to the voice coil motor of the movable cylinder 40. That is, the electrical connection component 1 connects the printed circuit board 35, which is an electronic component, and the voice coil motor. As described above, since the movable cylinder 40 moves relative to the 35, the electrical connection component 1 connects the electronic components that move relative to each other.

  As described above, the flexible printed circuit board 10 employed in the electrical connection component 1 is bent so that the first portion 12 and the second portion 14 overlap each other. For this reason, the electrical connection component 1 can be reduced in size. Thereby, it is possible to electrically connect a plurality of electronic components even in a device in which it is difficult to secure an area for fixing the electrical connection component 1.

  Here, when the first part 12 and the second part 14 overlap, the signal wiring on the first part 12 side and the power supply wiring on the second part 14 side approach each other, thereby causing signal interference between the two wirings. There is. As a result, erroneous propagation of signals may occur and malfunction may occur. In the electrical connection component 1 according to the first embodiment, as illustrated in FIG. 2, the metal member M is disposed between the first portion 12 and the second portion 14. Thereby, signal interference can be prevented between the signal wiring and the power supply wiring.

  An insulating member I is disposed between the first part 12 and the second part 14. Thereby, the 1st part 12 and the 2nd part 14 can be separated as much as possible. Accordingly, it is possible to prevent signal interference between the signal wiring and the power supply wiring.

  Further, the metal member M may be conductively connected to, for example, a metal plate of an optical device that employs the electrical connection component 1 or a ground of a printed board. Thereby, signal interference can be prevented between the signal wiring and the power supply wiring.

  In the above embodiment, only the metal member M may be disposed between the first part 12 and the second part 14. This also prevents signal interference between the signal wiring and the power supply wiring.

  In the above embodiment, the insulating member I is disposed on the first portion 12 side where the signal wiring is provided, and the metal member M is disposed on the second portion 14 side where the power supply wiring is provided. It is not limited. For example, the metal member M may be disposed on the first part 12 side, and the insulating member I may be disposed on the second part 14 side.

  The noise countermeasure component N includes an insulating member I that can be elastically deformed. For this reason, when the noise countermeasure component N is affixed to the flexible printed circuit board 10 with the double-sided tape T, the flexible printed circuit board 10 can be pressed against the noise countermeasure component N so that the insulating member I is elastically deformed. Thereby, the sticking operation | work of the noise countermeasure component N becomes easy. In addition, since the insulating member I is deformed to some extent, as shown in FIGS. 3A and 3B, it is easy to attach the electrical connection component 1 on the curved surface.

  As shown in FIG. 2, the first part 12, the second part 14, and the noise countermeasure component N are entirely overlapped, but may be partially overlapped.

  FIG. 4 is a front view showing a part of the flexible printed circuit board 10a employed in the electrical connection component of the second embodiment. In FIG. 4, a part of the flexible printed circuit board 10a is shown. The flexible printed circuit board 10a includes a base portion 10b made of flexible and insulating polyimide, two signal wires 12l provided to be coated on the base portion 10b, ground wires 12g and 14g, and a power supply wire 14p. And. These wirings are made of, for example, copper foil. In addition, the number and arrangement order of each wiring are not limited to this.

  A slit S1 extending in the longitudinal direction is formed at substantially the center of the flexible printed circuit board 10a. The first part 12a and the second part 14a sandwich the slit S1. On the first portion 12a side, a ground wiring 12g and two adjacent signal wirings 12l are provided. The ground wiring 12g is provided between the signal wiring 12l and the slit S1. The slit S1 extends in the longitudinal direction of the flexible printed circuit board 10a.

  A ground wiring 14g and a power supply wiring 14p are provided on the second portion 14a side. The ground wiring 14g is provided between the power supply wiring 14p and the slit S1. Therefore, ground wirings 14g and 12g are formed between the power supply wiring 14p and the two signal wirings 12l.

  Similarly, the electrical connection component of the second embodiment is arranged so that the first portion 12a and the second portion 14a overlap each other via the slit S1. Between the first part 12a and the second part 14a, the noise countermeasure part N employed in the electrical connection part of the first embodiment is sandwiched and held. Thereby, signal interference between the signal wiring 12l and the power supply wiring 14p can be suppressed.

  The insulating member I of the noise countermeasure component N sandwiched between the first part 12a and the second part 14a is conductively connected to at least one of the ground wirings 12g and 14g. Thereby, signal interference between the signal wiring 12l and the power supply wiring 14p can be suppressed.

  In the electrical connection component of the second embodiment, the ground wirings 12g and 14g may not be provided. A ground wiring may be provided only in one of the first part and the second part. The arrangement order of the wires may be other than the order shown in FIG.

  Although the embodiments of the present invention have been described in detail above, the present invention is not limited to such specific embodiments, and various modifications and changes can be made within the scope of the gist of the present invention described in the claims. It can be changed.

  Examples of the optical apparatus include a still camera, a video camera, a digital camera, a mobile phone, and a telescope.

  You may employ | adopt the electrical connection component of the said Example for an electronic device. Examples of the electronic device include a desktop computer, a notebook computer, a tablet computer, a television, a mobile phone, a fixed telephone, an audio, a navigation device, and a magnetic disk reproducing device.

  The electrical connection component of the above embodiment may be connected to an electronic component that can be moved relatively. For example, the electronic components provided on each of the main body side and the movable portion side of the mobile phone coupled so as to be movable relative to each other may be connected by the electrical connection component of the above embodiment.

DESCRIPTION OF SYMBOLS 1 Electrical connection component 10, 10a Flexible printed circuit board 11 3rd part 12 1st part 14 2nd part S, S1 Slit N Noise suppression part M Metal member I Insulation member

Claims (7)

An electrical connection part used in an optical device,
A metal member;
A flexible printed circuit board including first and second parts separated from each other and overlapped with each other via the metal member, and a third part continuous with the first and second parts ,
The electrical connection component, wherein the first and second parts extend around an optical axis . The first part is provided with a signal wiring,
The electrical connection component according to claim 1, wherein power supply wiring is provided in the second part.   The electrical connection component according to claim 1, further comprising an insulating member sandwiched between the first and second portions together with the metal member.   The electrical connection component according to claim 1, wherein the third portion is located between the first and second portions.   5. The electrical connection component according to claim 1, wherein a ground wiring is provided on at least one of the first and second parts.   The electrical connection component according to claim 5, wherein the metal member is conductively connected to the ground wiring. The electrical connection component according to any one of claims 1 to 6,
An optical apparatus comprising the a pasting target portion to which the electrical connecting part is attached.

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