JP2015075642A - Electronic devices - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem in which in mounting substrates having a plurality connectors mounted, if components are configured not to be mounted in the vicinity of insertion inlets of the connectors, for example, there is a case where the mounting substrates cannot be downsized.SOLUTION: An electronic device comprises: a mounting substrate; a first connector that is mounted in the mounting substrate, and has a first insertion inlet; a second connector that is mounted in the mounting substrate, and has a second insertion inlet at a location facing the first insertion inlet; a first wiring substrate that is inserted into the first insertion inlet; and second flat plate-like wiring that is inserted into the second insertion inlet, and is arranged with the second flat plate-like wiring overlapped on at least one part of the first wiring substrate between the first insertion inlet and the second insertion inlet.

Description

  The present invention relates to an electronic device.

2. Description of the Related Art An electronic camera is known in which a flexible board extending from a lens barrel is turned from the front side to the back side of an electric board and connected to a connector provided on the back side of the electric board (for example, Patent Document 1). reference.).
[Prior art documents]
[Patent Literature]
[Patent Document 1] Japanese Patent Application Laid-Open No. 11-298769

  When a mounting component is mounted in the vicinity of an insertion port of a connector for inserting a wiring board such as a flexible printed board, the wiring board and the mounting component may interfere when the wiring board is inserted into the connector, for example. In a mounting board on which a plurality of connectors are mounted, if a component is not mounted in the vicinity of the connector insertion port, for example, the mounting board may not be reduced in size.

  In one aspect, the electronic device has a mounting substrate, a first connector mounted on the mounting substrate and having a first insertion port, and a second insertion port mounted on the mounting substrate and facing the first insertion port. The second connector, the first wiring board inserted into the first insertion port, and the first wiring board inserted into the second insertion port, at least partially overlapping the first wiring board between the first insertion port and the second insertion port. And a second wiring board arranged.

  It should be noted that the above summary of the invention does not enumerate all the necessary features of the present invention. In addition, a sub-combination of these feature groups can also be an invention.

FIG. 2 is a schematic cross-sectional view showing a main part of the camera 10. An arrangement example when the lens barrel portion 21 and the mounting substrate 30 are viewed in the direction along the optical axis AX is schematically shown. 2 is a front view showing a mounting substrate 30, a connector 100, and a connector 200. FIG. 2 is a front view showing a state in which a flexible printed board 110 is inserted into a connector 100. FIG. 4 is a perspective view showing a state in which a flexible printed circuit board 210 is inserted into a connector 200. FIG. 4 is a perspective view showing a state in which a flexible printed board 110 is inserted into the connector 100 and a flexible printed board 210 is inserted into the connector 200. FIG.

  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 the combinations of features described in the embodiments are essential for the solving means of the invention.

  FIG. 1 is a schematic cross-sectional view showing the main part of the camera 10. The camera 10 is an interchangeable lens camera as an example of an imaging device. The camera 10 includes a camera body 80 and a lens unit 20 as an example of a lens barrel. The lens unit 20 is attached to the subject side of the camera body 80. The lens unit 20 is an interchangeable lens and can be attached to and detached from the camera body 80. FIG. 1 shows a state where the lens unit 20 is attached to the camera body 80.

  The lens unit 20 includes a lens system 15, a lens barrel part 21, a lens side mount 40, a lens side MPU 24, a lens driving part 28, a mounting board 30, a connector 100, a connector 200, a flexible printed board 110, and a flexible printed board 210. The lens barrel portion 21 has a substantially cylindrical shape and holds the lens system 15 therein.

  The lens side mount 40 is attached to the camera side mount 50 provided in the camera body 80. The lens side mount 40 and the camera side mount 50 are so-called mount rings. The lens side mount 40 is engaged with the camera side mount 50 by, for example, a bayonet mount structure, and the lens unit 20 is integrated with the camera body 80. Each of the lens side mount 40 and the camera side mount 50 includes an electrical connection portion in addition to a mechanical engagement portion, and realizes power supply from the camera body 80 to the lens unit 20 and mutual communication.

  The lens system 15 includes a plurality of lenses 11, a lens 12, a lens 13, and a lens 14 arranged along the optical axis AX. Each of the lens 11, the lens 12, the lens 13, and the lens 14 may be a lens group that includes a plurality of lenses.

  The camera body 80 includes a camera side mount 50, an imaging unit 60, a flexible printed circuit board 68 and a main board 70. Electronic components such as a camera side MPU 71 and an ASIC 72 are mounted on the main board 70. The camera side MPU 71 outputs a control signal for controlling the imaging unit 60 to the imaging unit 60 via the flexible printed circuit board 68.

  The subject light that has passed through the lens 11, the lens 12, the lens 13, and the lens 14 is incident on an imaging device included in the imaging unit 60. An imaging signal generated when the imaging element receives subject light is transmitted to the main board 70 via the flexible printed board 68. The ASIC 72 performs image processing based on the imaging signal acquired through the flexible printed circuit board 68 to generate image data of the subject image.

  The lens 11, the lens 12, and the lens 13 are provided movably in the optical axis AX direction. The lens 11, the lens 12, and the lens 13 are driven in the optical axis AX direction by a driving force of a motor included in a lens driving unit 28 provided in the lens unit 20. The motor is controlled by a lens side MPU 24 described later. By moving the lens 11, the lens 12, and the lens 13 in the direction of the optical axis AX, adjustment of the angle of view of the optical system and adjustment of the focus position are realized.

  For example, the camera-side MPU 71 outputs a control signal for controlling the focus position to the lens unit 20 when the release button is pressed halfway in the camera body 80. When the lens side MPU 24 acquires the control signal from the camera side MPU 71, it outputs a motor control signal to the lens driving unit 28, and the lens responsible for focus adjustment among the lens 11, lens 12, and lens 13 is arranged in the optical axis AX direction. Move.

  Further, when an operation for adjusting the angle of view is performed on the camera body 80, the camera side MPU 71 outputs a control signal for controlling the angle of view to the lens unit 20. When the lens side MPU 24 acquires the control signal from the camera side MPU 71, it outputs a motor control signal to the lens driving unit 28, and the lens responsible for adjusting the angle of view among the lenses 11, 12, and 13 is placed in the optical axis AX direction. Move to.

  On the mounting substrate 30 of the lens unit 20, a connector 100 and a connector 200, and a lens side MPU 24 described later are mounted. The flexible printed circuit board 110 is attached to the connector 100. The flexible printed circuit board 210 is attached to the connector 200.

  The lens side MPU 24 communicates with the camera side MPU 71 via the flexible printed circuit board 210. The flexible printed circuit board 210 transmits a signal exchanged between the lens side MPU 24 and the camera side MPU 71. For example, the lens side MPU 24 acquires control signals for angle of view control and focus control from the camera side MPU 71 through the flexible printed circuit board 210. Further, the lens side MPU 24 outputs a signal indicating the state of the lens unit 20, a control result, and the like to the camera side MPU 71 through the flexible printed circuit board 210. In addition, the flexible printed circuit board 210 has a wiring for receiving power supplied from the camera body 80.

  The lens side MPU 24 communicates with the lens driving unit 28 via the flexible printed circuit board 110. The flexible printed circuit board 110 transmits a signal exchanged between the lens driving unit 28 and the communication IF 21. For example, the lens side MPU 24 outputs a control signal for controlling a motor included in the lens driving unit 28 to the lens driving unit 28 through the flexible printed circuit board 110. In addition, the lens-side MPU 24 acquires a signal indicating the state of the lens driving unit 28, the control result of the lens driving unit 28, and the like from the lens driving unit 28 through the flexible printed board 110. In addition, the flexible printed circuit board 110 has wiring for supplying power supplied from the camera body 80 to the lens driving unit 28.

  The flexible printed circuit board 110 and the flexible printed circuit board 210 are band-shaped members in which a wiring pattern is formed on an insulating resin sheet having flexibility. The flexible printed circuit board 110 can be attached to and detached from the connector 100. The flexible printed circuit board 210 can be attached to and detached from the connector 200.

  The connector 100 and the connector 200 are mounted on the mounting substrate 30 so that the insertion port of the connector 100 and the insertion port of the connector 200 face each other. When the flexible printed circuit board 110 is inserted into the connector 100 and the flexible printed circuit board 210 is inserted into the connector 200, a part of the flexible printed circuit board 110 and a part of the flexible printed circuit board 210 overlap in the optical axis AX direction. Therefore, the area of the region of the mounting surface on the mounting substrate 30 that interferes with the flexible printed circuit board 110 and the flexible printed circuit board 210 can be reduced. For example, even when a mounting prohibition area for prohibiting the mounting of electronic components is provided near the insertion openings of the connector 100 and the connector 200, the electronic components are mounted as compared with the case where the connector is mounted at a position where the insertion openings of the connectors do not face each other. The area that cannot be used can be reduced, and the area on the mounting substrate 30 can be used effectively.

  FIG. 2 schematically shows an arrangement example when the lens barrel 21 and the mounting substrate 30 are viewed in the direction along the optical axis AX, together with the flexible printed circuit board 110 and the flexible printed circuit board 210. FIG. 2 shows a state before the flexible printed circuit board 110 and the flexible printed circuit board 210 are inserted.

  The mounting substrate 30 is disposed in the accommodating portion 22 of the lens barrel portion 21. The lens barrel 21 has an opening 23 through which a subject light beam passing through the lens system 15 passes. The accommodating part 22 has a substantially annular shape as a whole, and is provided so as to surround the opening part 23. The mounting substrate 30 has an outer shape along the generally annular housing portion 22 as a whole, and is disposed in the housing portion 22.

  The connector 100, the connector 200, and the lens side MPU 24 are mounted on a mounting surface 35 that is one main surface of the mounting substrate 30. The mounting substrate 30 is disposed so that the mounting surface 35 is substantially orthogonal to the optical axis AX. The mounting surface 35 includes an inner edge portion 31 located on the optical axis AX side and an outer edge portion 32 located on the side farther from the optical axis AX than the inner edge portion 31.

  The connector 100 is mounted at a position closer to the inner edge 31 than the position where the connector 200 is mounted. The connector 200 is mounted on the outer edge 32 from the position where the connector 100 is mounted. Thus, the connector 100 is mounted at a position closer to the optical axis AX than the position where the connector 200 is mounted, and the connector 200 is mounted at a position farther from the optical axis AX than the position where the connector 100 is mounted. The inner edge portion 31 and the outer edge portion 32 each have a substantially arc shape.

  The connector 100 has an insertion slot 102 into which the flexible printed board 110 is inserted. The flexible printed circuit board 110 is detachable from the insertion slot 102. The connector 100 is a NON-ZIF (No Insertion Force) type connector.

  The connector 200 has an insertion port 202 into which the flexible printed circuit board 210 is inserted. The connector 200 has an insertion port 202 at a position facing the insertion port 102. The flexible printed circuit board 210 is detachable from the insertion slot 202. The connector 200 is a ZIF type connector.

  FIG. 2 shows the coordinate axes of the uvw coordinate system defined on the mounting surface 35. The uvw coordinate system is an orthogonal coordinate system, and the u axis, the v axis, and the w axis are orthogonal to each other. The w axis is a coordinate axis in a direction along the optical axis AX. Therefore, the mounting surface 35 of the mounting substrate 30 is substantially parallel to the uv plane. Further, the direction in which the subject luminous flux travels is defined as the negative direction of the w axis. When the lens unit 20 is attached to the camera body 80, the direction away from the camera body 80 is the w-axis plus direction. The u-axis is determined so that the insertion slot 102 and the insertion slot 202 are parallel to the uw plane. The uvw coordinate system is a right-handed coordinate system.

  The flexible printed circuit board 110 includes a connector part 120 and a wiring part 130. The connector part 120 is inserted into the insertion slot 102 of the connector 100. When the entire connector portion 120 is inserted into the connector 100 from the insertion opening 102, the flexible printed circuit board 110 is attached to the connector 100.

  The wiring part 130 includes a bent part 131 that follows the connector part 120, a straight part 132 that follows the bent part 131, a bent part 133 that follows the straight part 132, and a straight part 134 that follows the bent part 133. The positional relationship among the bent portion 131, the straight advance portion 132, the bend portion 133, the straight advance portion 134, the edge portion 141, and the edge portion 141 when the flexible printed circuit board 110 is attached to the connector 100 will be described later.

  The flexible printed circuit board 210 has a connector part 220 and a wiring part 230. The connector part 220 is inserted into the insertion slot 202 of the connector 200. When the entire connector portion 220 is inserted from the insertion port 202 into the connector 200, the flexible printed circuit board 210 is attached to the connector 200.

  The wiring part 230 includes a bent part 231 that follows the connector part 220, a rectilinear part 232 that follows the bent part 231, a bent part 233 that follows the rectilinear part 232, and a rectilinear part 234 that follows the bent part 233. The positional relationship among the bent portion 231, the rectilinear portion 232, the bend portion 233, the rectilinear portion 234, the edge portion 241, and the edge portion 242 when the flexible printed circuit board 210 is attached to the connector 200 will be described later.

  The connector 200 has an insertion port 202 at a position facing the insertion port 102. As shown in FIG. 1, the flexible printed board 110 is disposed between the flexible printed board 210 and the mounting surface 35 of the mounting board 30 between the insertion slot 102 and the insertion slot 202. In this way, the flexible printed circuit board 110 and the flexible printed circuit board 210 are arranged so as to overlap each other. Therefore, as shown by the hatched portion in FIG. 2, even when the mounting prohibition area 300 is provided in the vicinity of the insertion slot 102 and in the vicinity of the insertion slot 202, the area of the mounting prohibition area 300 is reduced to reduce the area on the mounting board 30 Can be used effectively.

  3 is a front view specifically showing the mounting substrate 30, the connector 100, and the connector 200. FIG. FIG. 4 is a front view showing a state in which the flexible printed circuit board 110 is inserted into the connector 100. FIG. 5 is a perspective view showing a state in which the flexible printed circuit board 210 is inserted into the connector 200. FIG. 6 is a perspective view showing a state in which the flexible printed circuit board 110 is inserted into the connector 100 and the flexible printed circuit board 210 is inserted into the connector 200.

  As shown in FIG. 3, the connector 100 is mounted away from the connector 200 by a distance D in the v-axis direction. That is, the distance between the insertion slot 102 and the insertion slot 202 is a distance D.

  As shown in FIG. 4, when the flexible printed circuit board 110 is attached to the connector 100, the wiring part 130 extends in the negative direction of the v-axis from the insertion port 102 of the connector 100, and the wiring part 130 The extending direction of the wiring in 130 is bent in a substantially orthogonal direction. Specifically, the wiring extending direction of the flexible printed circuit board 110 is bent from the v-axis direction in the connector part 120 to the u-axis direction in the bent part 131 and continues to the straight part 132. The wiring portion 130 extends in the u-axis minus direction at the rectilinear portion 132, is bent at a bent portion 133 mainly in a direction along the v-axis minus direction, and goes toward the outer edge portion 32 at the rectilinear portion 134. As shown in FIGS. 1, 6 and the like, the wiring portion 130 extends beyond the outer edge portion 32, extends in the w-axis plus direction, and extends to the connector provided in the lens driving portion 28.

  The wiring part 130 has a width d <b> 1 in the straight part 132. The width of the wiring part 130 is defined by the length in the direction orthogonal to the direction in which the signal is transmitted by the wiring in the wiring part 130. The width d1 is a distance between the edge 141 and the edge 142 in the rectilinear portion 132. The width d1 is smaller than the distance D, and a part of the rectilinear portion 132 is located between the insertion port 102 and the insertion port 202. The distance D is designed to such a value that the wiring part 130 having the width d1 can be disposed between the insertion slot 102 and the insertion slot 202.

  In the rectilinear portion 132 of the flexible printed circuit board 110, the edge portion 141 is located on the v-axis minus side from the edge portion 142. In the bent portion 131 and the rectilinear portion 132 of the wiring portion 130, the edge portion 141 is located on the v-axis plus side from the insertion port 202 and located on the v-axis minus side from the insertion port 102. That is, the wiring part 130 is disposed between the insertion port 102 and the insertion port 202 in a part of the bent part 131 and the straight part 132. As described above, the wiring portion 130 has a width narrower than the interval D between the insertion port 102 and the insertion port 202 in a part of the bent portion 131 and the rectilinear portion 132, and the insertion port 102 and the second insertion port 202. Pass between.

  Since the wiring portion 130 passes between the insertion port 102 and the second insertion port 202 in a part of the bent portion 131 and the rectilinear portion 132, the wiring portion 130 is difficult to be removed from the connector 100. Therefore, even if a non-ZIF type connector is used as the connector 100, the wiring part 130 is difficult to be removed from the connector 100.

  When the flexible printed circuit board 210 is attached to the connector 200, the wiring part 230 extends in the v-axis plus direction from the insertion port 202 of the connector 200, and the extending direction of the wiring in the wiring part 230 is the bending part 231. It is bent in a substantially orthogonal direction. Specifically, the wiring extending direction of the flexible printed circuit board 210 is bent in the u-axis direction at the bent portion 231 from the v-axis direction in the connector portion 220 and continues to the rectilinear portion 232. The wiring portion 230 extends in the u-axis minus direction at the rectilinear portion 232, is bent mainly in the direction along the v-axis minus direction at the bent portion 233, and goes toward the outer edge portion 32 at the rectilinear portion 234. As shown in FIG. 1 and the like, the wiring part 130 extends to the connector connected to the connection part for communication and power reception provided in the lens side mount 40 following the straight part 234.

  The wiring part 230 has a width d <b> 2 in the rectilinear part 232. The width d2 is a distance between the edge 241 and the edge 242 in the rectilinear portion 232. The width d2 is smaller than the distance D, and a part of the rectilinear portion 232 is located between the insertion slot 102 and the insertion slot 202. The distance D is designed to such a value that the wiring part 230 having the width d2 can be disposed between the insertion slot 102 and the insertion slot 202.

  In the rectilinear portion 232 of the flexible printed circuit board 210, the edge portion 241 is located on the v-axis minus side from the edge portion 242. In the bent portion 231 and the rectilinear portion 232 of the wiring portion 230, the edge portion 241 is located on the v-axis plus side from the insertion port 202 and located on the v-axis minus side from the insertion port 102. That is, the wiring part 230 is disposed between the insertion port 102 and the insertion port 202 in a part of the bent part 231 and the straight part 232. As described above, the wiring portion 230 has a width narrower than the interval D between the insertion port 102 and the insertion port 202 in a part of the bent portion 231 and the rectilinear portion 232, and the insertion port 102 and the second insertion port 202. Pass between.

  Since the wiring portion 230 passes between the insertion port 102 and the second insertion port 202 in a part of the bent portion 231 and the straight advance portion 232, the wiring portion 230 is difficult to be removed from the connector 200. The bent portion 231 and the rectilinear portion 232 of the wiring portion 230 are on the w axis plus side from the wiring portion 130. However, since a ZIF type connector is used for the connector 200, the flexible printed circuit board 210 is not easily detached from the connector 200.

  As described above, since the connector 100 and the connector 200 having the insertion ports facing each other are arranged on the mounting substrate 30, it is possible to suppress an increase in the mounting prohibited area on the mounting substrate 30. Therefore, the mounting density of electronic components and the like mounted on the mounting substrate 30 can be increased. Moreover, the mounting substrate 30 can be reduced in size.

  A shield member may be provided between the flexible printed circuit board 110 and the flexible printed circuit board 210 between the insertion opening 102 and the insertion opening 202. By providing the shield member, it is possible to reduce crosstalk between the electrical signal transmitted by the flexible flexible printed circuit board 110 and the electrical signal transmitted by the flexible printed circuit board 210.

  In the present embodiment, the flexible printed circuit board 110 and the flexible printed circuit board 210 are examples of wiring boards. As a wiring member inserted into a plurality of connectors having opposing insertion ports, a flat wiring member such as a flexible flat cable can be applied in addition to the flexible printed circuit board.

  The lens unit 20 of the present embodiment is an example of an electronic device in which a plurality of connectors having opposed insertion ports are mounted on a mounting board. Similarly, the camera 10 is an example of an electronic device in which a plurality of connectors having opposed insertion ports are mounted on a mounting board. It should be noted that a plurality of connectors having opposite insertion ports may be mounted on the main board 70 in the present embodiment. For example, a connector having an insertion port into which the flexible printed circuit board 68 is inserted and a connector having an insertion port facing the insertion port may be mounted on the main substrate 70. In this case, the camera body 80 is an example of an electronic device in which a plurality of connectors having opposed insertion ports are mounted on a mounting board.

  Further, in the present embodiment, the interchangeable lens camera 10 has been described as an example of the imaging apparatus. However, the imaging device is a concept including a camera other than an interchangeable lens camera such as a single-lens reflex camera. For example, the imaging apparatus is a concept including various devices having an imaging function, such as a non-lens exchangeable camera and a video camera. An imaging device is an example of an electronic device. Regardless of the presence or absence of an imaging function, a configuration in which a plurality of connectors having opposed insertion ports are mounted on a mounting substrate can be applied to various electronic devices.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

  The order of execution of each process such as operations, procedures, steps, and stages in the apparatus, system, program, and method shown in the claims, the description, and the drawings is particularly “before” or “prior to”. It should be noted that the output can be realized in any order unless the output of the previous process is used in the subsequent process. Regarding the operation flow in the claims, the description, and the drawings, even if it is described using “first”, “next”, etc. for convenience, it means that it is essential to carry out in this order. It is not a thing.

DESCRIPTION OF SYMBOLS 10 Camera 11, 12, 13, 14 Lens 15 Lens system 20 Lens unit 21 Lens barrel part 22 Storage part 23 Opening part 24 Lens side MPU
28 Lens Drive Unit 30 Mounting Board 31 Inner Edge 32 Outer Edge 35 Mounting Surface 40 Lens Side Mount 50 Camera Side Mount 60 Imaging Unit 68 Flexible Printed Circuit Board 70 Main Board 71 Camera Side MPU
72 ASIC
80 Camera Main Body 100 Connector 102 Insertion Port 110 Flexible Printed Circuit Board 120 Connector Portion 130 Wiring Portion 131 Bending Portion 132 Straightening Portion 133 Bending Portion 134 Straightening Portion 141 Edge Portion 142 Edge Portion 200 Connector 202 Insertion Port 210 Flexible Printed Circuit Board 220 Connector Portion 230 Wiring Part 231 Bent part 232 Straight part 233 Bend part 234 Straight part 241 Edge part 242 Edge part 300 Mounting prohibited area

Claims (9)

A mounting board;
A first connector mounted on the mounting substrate and having a first insertion port;
A second connector mounted on the mounting substrate and having a second insertion port at a position facing the first insertion port;
A first wiring board inserted into the first insertion port;
An electronic device comprising: a second wiring board that is inserted into the second insertion opening and disposed at least partially overlapping the first wiring board between the first insertion opening and the second insertion opening. The electronic device according to claim 1, wherein the first wiring board and the second wiring board are flexible printed boards. The first wiring board is detachable from the first insertion port,
The electronic device according to claim 1, wherein the second wiring board is detachable from the second insertion opening. The second wiring board is
Arranged between the first wiring and the mounting substrate;
A connector portion to be inserted into the second insertion port;
The wiring part which has a width | variety narrower than the space | interval between the said 1st insertion port and the said 2nd insertion port, and has passed between the said 1st insertion port and the said 2nd insertion port. Electronic equipment. The electronic device according to claim 4, wherein the second connector is a non-ZIF type connector. The electronic device according to claim 5, wherein the first connector is a ZIF type connector. The shield part provided between the said 1st wiring board and the said 2nd wiring board between the said 1st insertion port on the said mounting board | substrate and the said 2nd insertion port is further provided. The electronic device as described in any one. The electronic device according to claim 1, wherein the electronic device is an imaging device. A lens barrel having a lens;
The mounting substrate is disposed in the lens barrel so that a mounting surface for mounting the first connector and the second connector is substantially parallel to the optical axis of the lens,
The mounting surface is
An inner edge located on the optical axis side;
An outer edge located on the side farther from the optical axis than the inner edge,
One of the first connector and the second connector is mounted at a position closer to the inner edge than a position where the other of the first connector and the second connector is mounted. The electronic device as described in the paragraph.

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