JP6589949B2 - Electronics - Google Patents

Description

The present invention relates to an electronic device capable of suppressing the failure of an electronic component provided therein due to electrostatic breakdown or static electricity.

  In general, a lens barrel that can be attached to and detached from the camera body is generally composed of a metal linear guide ring, a metal cam ring rotatably supported on the outer peripheral surface of the linear guide ring, and a light beam inside the linear guide ring. A plurality of lens support members provided so as to be movable in the axial direction, and a lens group supported by each lens support member. Further, each lens support member has a cam follower projecting toward the outer peripheral side (the radially outer side of the lens barrel). The cam follower penetrates a linear guide groove formed in the linear guide ring extending in the optical axis direction on the outer peripheral side, and an outer peripheral end of the cam follower is engaged with a cam groove formed in the cam ring. Therefore, when the cam ring rotates, each cam follower advances and retreats in the optical axis direction along the linear guide groove of the linear guide ring, so that each lens group performs zooming and focusing.

Furthermore, a rotating ring made of resin (insulating) is provided on the outer peripheral surface of the cam ring. The rotation operation ring has a through hole, and the rotation operation ring and the cam ring are integrated by a metal connecting member (screw, pin, or the like) inserted into the through hole. Further, an outer ring formed of an insulating material such as rubber is placed on the outer peripheral surface of the rotary operation ring so as not to be relatively rotatable.
Therefore, when the photographer rotates the exterior ring together with the rotation operation ring, each lens group performs zooming and focusing.

The lens barrel is generally provided with a control board on which electronic components such as a microcomputer, electrical resistance, shutter block, etc., and a circuit pattern electrically connected to these electronic components are formed. The circuit pattern is connected to a metal linear guide ring and cam ring through various conductive members.
For this reason, static electricity from the outside may be transmitted to the linear guide ring or cam ring through the through hole and the connecting member of the rotary operation ring, and may flow from the linear guide ring or cam ring to the control board. If static electricity flows to the control board, the static electricity flows to the electronic components (microcomputer, electrical resistance, shutter block) connected to the circuit pattern of the control board. There is a risk of malfunction.
As a measure for solving this problem, for example, the following two can be cited.

One measure is to increase the size of the rotating operation ring in the optical axis direction, and then form the through hole in the center between both ends of the rotating operation ring in the optical axis direction. Is put on the rotating operation ring.
In this way, the distance (distance on the surface of the exterior ring) from the contact position of the photographer's hand on the outer surface of the exterior ring to the portion facing the through hole on the inner surface of the exterior ring is increased. Since static electricity tends to flow to the conductor located at the nearest location, if the above distance (distance on the surface of the outer ring) is increased, the static electricity transmitted to the outer surface of the outer ring may flow to the through hole. Can be reduced.

The second measure is to form a ground pattern on the control board, and to ground this ground pattern and the straight guide ring or cam ring to each other.
In this way, static electricity transmitted from the exterior ring to the linear guide ring or cam ring through the through hole is more likely to flow to the ground pattern than the circuit pattern of the control board. The risk of flowing into the water is reduced.

Japanese Patent No. 4649191 Japanese Patent Publication No. 03-048300 JP-A-08-081910

However, according to the first measure, the rotation operation ring and the exterior ring must be enlarged in the optical axis direction, so that the lens barrel is enlarged. That is, the degree of freedom in designing the lens barrel is reduced.
In the second measure, the grounding structure (grounding pattern) has to be adopted, which increases the manufacturing cost.

The present invention provides an electronic device capable of suppressing internal electronic components from being damaged due to electrostatic breakdown or static electricity due to static electricity from the outside without adopting a grounding structure and without reducing the degree of freedom of design. With the goal.

An electronic device according to the present invention includes an insulating member that forms at least a part of a housing in which an electronic component is incorporated or an exterior member provided in the housing, and an inside of the housing inside the insulating member. A conductive member that is disposed on the conductive member and is electrically connected to the electronic component, a through hole that is formed in the insulating member and penetrates the outer space of the insulating member and the space on the conductive member side, and the through hole A first insulating element different from the insulating member, which is supported on the outer surface of the insulating member at the periphery of the through hole and covers the through hole from the outside, and is located in the through hole And a second insulating element .

The insulating member and the conductive member may be connected by a conductive connecting member inserted into the through hole.

The present invention is particularly useful when the conductive member is disposed to face the insulating member. It is.

The electronic device is suitable for an electronic imaging device that is constituted by the insulating member at least a portion of the outer shell.

The electronic device, at least a portion of the outer shell may be applied to a portable terminal end which constitutes by the insulating member.

In the electronic apparatus of the present invention, without reducing the flexibility of not and the design was adopted ground structure, an electronic device capable of suppressing the internal electronic components by static electricity from the outside fails by electrostatic breakdown or electrostatic can get.

It is a front view of the camera body which is a component of the camera of one Embodiment of this invention. It is sectional drawing which follows the II-II arrow line of FIG. It is sectional drawing which follows the III-III arrow line of FIG. It is a perspective view of the interchangeable lens barrel which is a component of a camera. It is a perspective view of the exchangeable lens barrel with the rubber ring removed. It is a vertical side view of an interchangeable lens barrel. It is an enlarged view of the VII part of FIG. It is typical sectional drawing of a modification. It is typical sectional drawing of another modification.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
As shown in the drawing, the camera of the present embodiment includes a camera body 10 ( electronic device) (electronic imaging device) and an interchangeable lens barrel 43 ( electronic device) (electronic imaging device) that are detachable from each other.
First, the detailed structure of the camera body 10 will be described.

The camera body 10 includes a hollow body case 11 ( housing ). The body case 11 has a laminated structure in which a metal plate 12 (conductive member) and a resin member 15 (insulating member) are stacked, and a plurality of operation buttons are provided on the upper surface and the front surface of the body case 11. Has a liquid crystal display. A circular opening hole 22 is formed at the center of the front surface of the body case 11, and a substantially annular body-side mount ring 23 made of metal is fitted and fixed to the opening hole 22. The inner peripheral side portion of the front surface of the body side mount ring 23 is a body side mount surface 24 that protrudes one step forward compared to the outer peripheral side portion. On the opening edge of the body side mount ring 23, a body side bayonet claw 25 located at a position one step rearward from the body side mount surface 24 projects integrally toward the inner peripheral side.

A circular hole formed in the vicinity of the lower end of the body-side mounting surface 24 is provided with a lock pin 26 extending in the front-rear direction. The lock pin 26 is slidable in the front-rear direction between a lock position protruding forward from the body-side mounting surface 24 and an unlock position where the lock pin 26 is entirely accommodated in the circular hole, and an urging force provided in the circular hole It is moved and biased toward the lock position by the forward biasing force of the means. Further, a lock release button 27 is provided in a hole formed in the front surface of the body case 11. The lock release button 27 is slidable in the front-rear direction between a non-operation position that protrudes forward from the front surface of the body case 11 and an operation position that is entirely accommodated in the hole, and is provided in the hole. The biasing means is moved and biased toward the non-operation position by a forward biasing force of the biasing means. When the lock release button 27 is located at the non-operation position (when the lock release button 27 is not pushed backward), the lock pin 26 is located at the lock position, and when the lock release button 27 is located at the operation position (the lock release button 27 The lock pin 26 moves to the unlock position against the urging force of the urging means.
In addition, on the front surface of the body case 11 (specifically, the artificial leather 20), one of the functions (shooting mode, aspect ratio, digital filter, focus assist, etc.) of the camera (camera body 10) is registered and the setting is changed. The operation dial 28 is rotatably attached.

In the internal space of the body case 11, an intermediate support plate 29 made of a synthetic resin having a substantially disc shape orthogonal to the optical axis of the camera is provided. The peripheral edge of the intermediate support plate 29 is fixed to the peripheral edge of the rear surface of the body side mount ring 23, and a rectangular central rectangular hole 29 a is formed in the central portion of the intermediate support plate 29.
In the rear part of the internal space of the body case 11, an image sensor 30 positioned immediately after the central rectangular hole 29a is provided in a fixed state.
Further, a control board (rigid board, not shown) is provided in a fixed state in the internal space of the body case 11. The control board is connected to a battery (not shown) and the image sensor 30 (optical element) provided in the body case 11 by a conductive member (flexible printed board or the like). Further, the intermediate support plate 29 is provided with a plurality of contact pins 31 connected to the control board.

Subsequently, the detailed structure of the body case 11 including the metal plate 12 and the resin member 15 is as follows.
Most of the inner periphery of the body case 11 is constituted by a metal plate 12. As shown in FIGS. 2 and 3, circular protrusions 13 and 14 projecting forward are provided at two locations on the front portion of the metal plate 12 (the portion corresponding to the front surface of the camera body 10). Female screw holes 13a and 14a having a circular cross section are formed at the center of the convex portions 13 and 14.
As shown in FIGS. 2 and 3, a flexible printed board 33 is attached to the outer peripheral surface of the metal plate 12. Furthermore, convex relief holes 34 into which the circular convex portion 13 and the circular convex portion 14 are loosely fitted are formed at two places on the flexible printed board 33. One end of the flexible printed board 33 (or another part other than the one end) is connected to the circuit pattern of the control board, and the other end is connected to the operation dial 28.
The resin member 15 located on the outer peripheral side of the metal plate 12 is made of an insulating resin material. As shown in FIGS. 2 and 3, a through hole 16 and a through hole 17 are formed in portions corresponding to the circular convex portions 13 and 14 of the resin member 15. The through-hole 16 has a circular recess 16a provided in the outer peripheral surface of the resin member 15, and a small diameter having a smaller cross section than the recess 16a extending from the bottom surface of the recess 16a to the inner peripheral surface side (metal plate 12 side) of the resin member 15. And a hole 16b. On the other hand, the through-hole 17 includes a circular first concave portion 17a provided in the outer peripheral surface of the resin member 15, and a second concave portion 17b having a smaller diameter and a circular cross section than the first concave portion 17a provided in the bottom surface of the first concave portion 17a. And a small-diameter hole 17c having a smaller diameter and a circular cross-section than the second recess 17b extending from the bottom surface of the second recess 17b toward the inner peripheral surface of the resin member 15.

As shown in FIGS. 2 and 3, the metal plate 12 and the resin member 15 are both fixed (connected) by a metal (conductive) fixing screw 36 (connecting member) and a fixing screw 37 (connecting member). is there. The fixing screw 36 is screwed into the female screw hole 13a while inserting the male screw portion 36b into the small diameter hole 16b, and presses the head portion 36a against the bottom surface of the concave portion 16a. The fixing screw 37 is screwed into the female screw hole 14a while inserting the male screw portion 37b into the small diameter hole 17c, and presses the head portion 37a against the bottom surface of the second concave portion 17b.
As shown in FIG. 2, there is a gap between the surface of the head 36a and the surface of the recess 16a. A photo-curing adhesive 38 made of a viscous fluid (for example, silicon-based material, epoxy, etc.) is formed in the entire gap (a portion excluding the space occupied by the head 36a of the recess 16a) (in a state before curing described later). System, rubber-based material, etc.) ( second insulating element). That is, the photocurable adhesive 38 is in close contact with the surface of the recess 16a and the surface of the head 36a. Since the gap between the bottom surface of the concave portion 16a and the head portion 36a is very small, and the photocurable adhesive 38 has viscosity, the photocurable adhesive 38 is formed on the concave portion 16a (before curing described later). There is no flow into the small-diameter hole 16b side through a minute gap between the bottom surface and the head 36a.
On the other hand, on the surface of the first recess 17a, as shown in FIG. 3, a photo-curing adhesive 39 ( second insulating element) made of a viscous fluid forms an annular shape when viewed from the front (in a state before curing described later). It is applied in close contact. Since the photocurable adhesive 39 has viscosity, there is little possibility that the photocurable adhesive 39 flows into the second concave portion 17b side. Further, since the gap between the bottom surface of the second concave portion 17b and the head portion 37a is very small and the photocurable adhesive 39 has viscosity, the photocurable adhesive 39 is temporarily (before curing to be described later) Even if it flows into the second concave portion 17b side, the photocurable adhesive 39 does not flow into the small diameter hole 17c side from the minute gap between the bottom surface of the second concave portion 17b and the head portion 37a.
Further, a sheet-like insulating tape 41 ( first insulating element) having a front shape larger than the through-hole 16 and having flexibility is attached to a portion corresponding to the through-hole 16 on the outer peripheral surface of the resin member 15. It is. The insulating tape 41 capable of transmitting ultraviolet light (having translucency) has a substantially square shape, and an adhesive surface is formed on the back surface (surface on the resin member 15 side). As shown in FIG. 2, the insulating tape 41 covers the outer peripheral surface of the resin member 15 (and the photocurable adhesive 38) so as to cover the outer peripheral surface of the resin member 15 (peripheral portion of the through hole 16) and the photocurable adhesive 38. ). Since the back surface of the insulating tape 41 is an adhesive surface, the insulating tape 41 can be attached to the outer peripheral surface of the resin member 15 (peripheral portion of the through-hole 16) and the photocurable adhesive 38.
Similarly, a sheet-like insulating tape 42 ( first insulating element) having a front shape larger than the through-hole 17 and having flexibility is attached to a portion corresponding to the through-hole 17 on the outer peripheral surface of the resin member 15. I wear it. The insulating tape 42 can also transmit ultraviolet rays (has translucency). The insulating tape 42 is substantially square, and an adhesive surface is formed on the back surface (surface on the resin member 15 side). As shown in FIG. 3, the insulating tape 42 covers the outer peripheral surface of the resin member 15 (and the photocurable adhesive 39) so as to cover the outer peripheral surface of the resin member 15 (the peripheral edge of the through-hole 17) and the photocurable adhesive 39. ). Since the back surface of the insulating tape 42 is an adhesive surface, the insulating tape 42 can be attached to the outer peripheral surface of the resin member 15 (peripheral portion of the through hole 17) and the photocurable adhesive 39.
When the insulating tape 41 and the insulating tape 42 are attached to the outer peripheral surface of the resin member 15 and then the front surface of the body case 11 is irradiated with ultraviolet rays, the ultraviolet rays are transmitted through the insulating tape 41 and the insulating tape 42 and photocured. The adhesives 38 and 39 are irradiated. Then, since the photocurable adhesives 38 and 39 are cured and bonded to the resin member 15 and the insulating tapes 41 and 42, the photocurable adhesive 38, the photocurable adhesive 39, the insulating tape 41, and the insulating tape The tape 42 is fixed to the resin member 15. However, since the adhesive surface of the insulating tape 41 and the adhesive force of the photocurable adhesive 38 are not so great, the insulating tape 41 is peeled off from the resin member 15 and the photocurable adhesive 38 by a certain amount of force. In addition, the photocurable adhesive 38 can be peeled off from the resin member 15. Similarly, the adhesive surface of the insulating tape 42 and the adhesive force of the photo-curing adhesive 39 are not so great, so that the insulating tape 42 is peeled off from the resin member 15 and the photo-curable adhesive 39 by a certain amount of force. In addition, the photocurable adhesive 39 can be peeled off from the resin member 15.

  The outer peripheral surfaces of the resin member 15 and the insulating tapes 41 and 42 are covered with insulating artificial leather 20 (exterior member) (insulating member). The artificial leather 20 constitutes most of the outer periphery of the body case 11. However, the artificial leather 20 is not provided on the surface of the grip portion 11 a formed on the left side portion of the body case 11. The artificial leather 20 is fixed to the outer peripheral surface of the resin member 15 by adhesion or double-sided tape.

Next, a detailed structure of the interchangeable lens barrel 43 that can be attached to and detached from the camera body 10 having the above configuration will be described.
The interchangeable lens barrel 43 includes a front fixed ring 44 (a substantially cylindrical member centered on the optical axis (of a first lens unit L1, a second lens unit L2, and a third lens unit L3 described later)). Housing ) and a rear fixed ring 45 ( housing ). The interchangeable lens barrel 43 is a metal rectilinear guide ring that has a plurality of rectilinear guide grooves (not shown) that are positioned in a fixed state on the inner peripheral side of the front fixed ring 44 and the rear fixed ring 45 and parallel to the optical axis. 46. Mounted on the rear end of the linear guide ring 46 is a mount ring 47 that is an annular member centered on the optical axis.
A plurality of cam followers (the same number as the rectilinear guide grooves) protrude from the outer peripheral surface of the first group support member 48 that supports the first lens group L1 (optical element ), and each cam follower of the first group support member 48 guides straightly. The cam followers protrude from the inner circumference side of the ring 46 to the outer circumference side of the rectilinear guide ring 46. The second group support member 49 that supports the second lens group L2 (optical element ) is supported by the first group support member 48 so as to be slidable in the optical axis direction. A plurality of (following guide movement grooves) cam followers project from the outer peripheral surface of the third group support member 50 that supports the third lens group L3 (optical element ), and each cam follower of the third group support member 50 guides straight. The cam followers protrude from the inner periphery of the ring 46 to the outer periphery of the rectilinear guide ring 46.
A zoom resistor plate 51 is fixed to the outer peripheral surface of the straight guide ring 46, and a motor (not shown) is provided inside the interchangeable lens barrel 43. This motor is a power transmission mechanism (not shown). The second group support member 49 is connected via Further, a shutter unit is fixed to the third group support member 50. The zoom resistor plate 51, the motor, and the shutter unit are connected to a circuit pattern (control circuit) of the control board CB1 fixed inside the camera body 10 via a flexible printed board FPB. Further, a control board CB2 connected to a plurality of contact pins (not shown) is fixed to the mount ring 47. The circuit pattern of the control board CB1 and the control board CB2 are connected to each other by a flexible printed board (not shown). Yes.

A metal (conductive) zoom cam ring 52 (conductive member ) is attached to the outer peripheral surface of the rectilinear guide ring 46 so as to be rotatable and not relatively movable in the optical axis direction. The zoom cam ring 52 is also a substantially cylindrical member centered on the optical axis. The zoom cam ring 52 has a plurality of cam grooves 53 (the same number as the straight guide grooves) that are not parallel to the straight guide grooves. The distal ends of the cam followers of the first group support member 48 and the third group support member 50 are fitted in the cam groove 53 of the zoom cam ring 52 so as to be relatively movable. Further, the zoom cam ring 52 is formed with a female screw hole 54 that penetrates the zoom cam ring 52 in the plate thickness direction. In addition, a conductive metal brush (not shown) capable of sliding contact with the zoom resistor plate 51 is fixed to the inner peripheral surface of the zoom cam ring 52.

A zoom operation ring 58 (exterior member) (insulating member) made of an insulating material such as resin is attached to the outer peripheral surface of the zoom cam ring 52. An annular recess 59 centering on the optical axis is formed in a portion excluding both front and rear ends of the outer peripheral surface of the zoom operation ring 58. Furthermore, a through hole 60 having a circular cross section that penetrates the zoom operation ring 58 in the thickness direction is formed on the bottom surface of the annular recess 59.
The zoom operation ring 58 is attached to the outer peripheral surface of the zoom cam ring 52 in such a manner that the central axes of the through hole 60 and the female screw hole 54 coincide. Further, after the zoom operation ring 58 is put on the zoom cam ring 52, a metal (conductive) connection screw 56 (connection member ) is fixed to the female screw hole 54 using the through hole 60. The connection screw 56 has a head portion 56a and a male screw portion 56b having a smaller diameter than the head portion 56a. The male screw portion 56b is screwed into the female screw hole 54 and is located in the through hole 60. Is in pressure contact with the outer peripheral surface of the zoom cam ring 52. As shown in FIG. 7, there is a gap in the front-rear direction (parallel to the optical axis direction) and a circumferential gap (centered on the optical axis) between the surface of the head 56a and the surface of the through hole 60. . However, since these gaps are very small, when the head 56a of the connecting screw 56 is positioned in the through hole 60 of the zoom operation ring 58, the head 56a causes the zoom cam ring 52 and the zoom operation ring 58 to move in the front-rear direction (optical axis direction). And the relative rotation in the circumferential direction are restricted. That is, the connecting screw 56 substantially connects the zoom cam ring 52 and the zoom operation ring 58, and when the zoom operation ring 58 rotates around the optical axis, the zoom cam ring 52 and the zoom operation ring 58 rotate together. .

As shown in FIG. 7, the entire gap (excluding the space occupied by the head portion 56a of the through hole 60) between the through hole 60 of the zoom operation ring 58 and the head portion 56a of the connecting screw 56 is entirely (described later). It is filled with a photocurable adhesive 61 ( second insulating element) made of a viscous fluid (before curing). That is, the photocurable adhesive 61 is in close contact with the surface of the through hole 60, the surface of the head portion 56 a, and the outer peripheral surface of the zoom cam ring 52. Since the gap between the outer peripheral surface of the zoom cam ring 52 and the head portion 56a is very small and the photocurable adhesive 61 has viscosity, the photocurable adhesive 61 (before curing described later) is used as the zoom cam. It does not flow into the female screw hole 54 through a minute gap between the outer peripheral surface of the ring 52 and the head portion 56a.
Further, a sheet-like insulating tape 62 ( first insulating element) larger than the through-hole 60 and having flexibility is attached to a portion corresponding to the through-hole 60 on the bottom surface of the annular recess 59. The insulating tape 62 capable of transmitting ultraviolet light (having translucency) has a substantially square shape, and an adhesive surface is formed on the rear surface (the surface on the zoom operation ring 58 side). As shown in FIG. 5, the insulating tape 62 is applied to the bottom surface of the annular recess 59 (and the photocurable adhesive 61) so as to cover the bottom surface of the annular recess 59 (the peripheral portion of the through hole 60) and the photocurable adhesive 61. Affixed. Since the back surface of the insulating tape 62 is an adhesive surface, the insulating tape 62 can be attached to the bottom surface of the annular recess 59 (peripheral edge of the through hole 60) and the photocurable adhesive 61. When the insulating tape 62 is attached to the bottom surface of the annular recess 59 and then the outer peripheral surface of the zoom operation ring 58 is irradiated with ultraviolet rays, the ultraviolet rays are transmitted through the insulating tape 62 and irradiated onto the photocurable adhesive 61. Then, the photocurable adhesive 61 is cured and adhered to the zoom cam ring 52, the zoom operation ring 58, and the insulating tape 62, so that the photocurable adhesive 61 and the insulating tape 62 are fixed to the zoom operation ring 58. Is done. However, the adhesive surface of the insulating tape 62 and the adhesive force of the photo-curing adhesive 61 are not so large, so that the insulating tape 62 is removed from the zoom operation ring 58 and the photo-curing adhesive 61 by a certain amount of force. It is possible to peel off and remove the photo-curable adhesive 61 from the zoom operation ring 58.

A rubber ring 64 is detachably attached to the annular recess 59 (the bottom surface) of the zoom operation ring 58 and the insulating tape 62. The inner diameter of the rubber ring 64 when in the free state is smaller than the diameter of the bottom surface of the annular recess 59. For this reason, if the rubber ring 64 is covered with the annular recess 59 (the bottom surface) while elastically deforming in the diameter increasing direction, the rubber ring 64 closely contacts the bottom surface of the annular recess 59 while elastically deforming in the diameter reducing direction. The annular recess 59 (zoom operation ring 58) and the insulating tape 62 are practically incapable of relative rotation.

Next, operations of the camera body 10 and the interchangeable lens barrel 43 will be described.
In order to operate the camera body 10 and the interchangeable lens barrel 43, the camera body 10 and the interchangeable lens barrel 43 are first connected to form a camera. Specifically, the rear end portion of the mount ring 47 of the interchangeable lens barrel 43 is inserted into the camera body 10 through the inside of the body side mount ring 23, and the lens side bayonet provided at the rear end portion of the mount ring 47. A claw (not shown) and the body side bayonet claw 25 are engaged with each other, and a part of the mount ring 47 is brought into contact with the body side mounting surface 24 from the front. Then, since the lock pin 26 is fitted into a lock hole (not shown) provided in the rear portion of the mount ring 47, the camera body 10 and the interchangeable lens barrel 43 cannot be attached or detached. When the lock release button 27 is pushed into the operation position after connecting the camera body 10 and the interchangeable lens barrel 43, the lock pin 26 moves to the unlock position against the urging force of the urging means, and the lock is released. Since it escapes from the hole, the camera body 10 and the interchangeable lens barrel 43 can be separated from each other.

  When the camera body 10 and the interchangeable lens barrel 43 are connected, the contact pin 31 of the camera body 10 and the contact pin of the interchangeable lens barrel 43 contact each other. Therefore, when the main switch provided on the body case 11 is turned ON, the battery power is supplied from some contact pins 31 to the corresponding contact pins of the interchangeable lens barrel 43, and the control board CB2 is further supplied from the contact pins. Via the control board CB1. Further, the control board of the camera body 10 is stored in a memory (connected to the control board CB2) in which the interchangeable lens barrel 43 is not shown through the contact pin of the interchangeable lens barrel 43 corresponding to another contact pin 31. The specification information (focal length information, etc.) of the interchangeable lens barrel 43 is read.

When the photographer holds the body case 11 (grip part 11a) with one hand and rotates the rubber ring 64 in one direction around the optical axis with the other hand (when performing a manual zoom operation), the zoom operation ring 58 The zoom cam ring 52 rotates in the one direction. Then, the cam followers of the first group support member 48 and the third group support member 50 fitted in the cam groove 53 of the zoom cam ring 52 move forward along the straight guide grooves of the straight guide ring 46, and the first group support member 48 (first lens group L1) and the third group support member 50 (third lens group L3) move forward along the optical axis (the second group support member 49 and the second lens group L2 are the same as the first group support member 48). Accordingly, the focal length of the lens unit including the first lens unit L1, the second lens unit L2, and the third lens unit L3 changes. On the other hand, when the photographer grips the rubber ring 64 by hand and rotates the rubber ring 64 in the reverse direction around the optical axis, the zoom operation ring 58 and the zoom cam ring 52 rotate in the reverse direction. Therefore, the cam followers of the first group support member 48 and the third group support member 50 fitted in the cam groove 53 move rearward along the straight guide grooves of the straight guide ring 46, and the first group support member 48 (first The lens group L1) and the third group support member 50 (third lens group L3) move rearward along the optical axis (the second group support member 49 and the second lens group L2 move together with the first group support member 48). Therefore, the focal length of the lens unit including the first lens unit L1, the second lens unit L2, and the third lens unit L3 changes. Thus, the zooming operation is performed by the first lens group L1, the second lens group L2, and the third lens group L3 moving forward and backward in the optical axis direction. Further, as the zoom cam ring 52 rotates relative to the straight guide ring 46, the contact position of the metal brush on the zoom cam ring 52 side with respect to the zoom resistance plate 51 on the straight guide ring 46 side changes. The control board is transmitted to the control board on the camera body 10 side via the board FPB, the control board CB1, the control board CB2, the contact pin on the interchangeable lens barrel 43 side, and the contact pin 31. The rotational position 52 (focal length of the lens group) can be recognized.
When the photographer presses an AF switch (not shown) provided on the body case 11, the contact pin 31 from the control board of the camera body 10, the contact pin on the interchangeable lens barrel 43 side, the control board CB2, and the control. A rotation signal is sent to the motor via the substrate CB1. Then, since the motor rotates, the second group support member 49 (second lens group L2) moves forward and backward in the optical axis direction with respect to the first group support member 48 (first lens group L1), and focusing (AF) is performed by the second lens group L2. Operation).

Further, as described above, a metal brush is attached to the metal zoom cam ring 52 of the interchangeable lens barrel 43, and the metal brush comes into contact with the zoom resistor plate 51 fixed to the rectilinear guide ring 46, and the zoom resistor plate 51. Are connected to the circuit pattern of the control board CB1 via the flexible printed circuit board FPB. The shutter unit and the motor are connected to the circuit pattern of the control board CB1. Further, a microcomputer, electrical resistance, and the like are mounted on the circuit pattern of the control board CB1. That is, various electronic components (shutter unit, motor, microcomputer, electrical resistance, etc.) are electrically connected to the circuit pattern of the control board CB1. Therefore, if the photographer's static electricity enters the through hole 60 of the zoom operation ring 58 from the hand, the metal connection screw 56, the metal zoom cam ring 52, the metal brush, the zoom resistor plate 51, the flexible printed circuit board FPB, and the control Since it flows to the electronic component via the substrate CB1, there is a possibility that these electronic components may be damaged due to electrostatic damage or static electricity due to static electricity.
However interchangeable lens 43 is part component that surrounds the entire connecting screw 56 from the outer peripheral side when the light-curable adhesive 61 is viewed in the axial direction of the through hole 60 is adhesion insulating material filled in the through hole 60 the has further insulating tape 62 stuck to the light curing adhesive 61 from the outside, the through hole 60, the connecting screw 56 and the photocurable adhesive when viewed in the axial direction of the through-holes 60 61 is covered. That is, the photocurable adhesive 61 and the insulating tape 62 , which are insulating elements different from the zoom operation ring 58, cover (electrically) the outer end portion of the through hole 60 formed in the zoom operation ring 58. It has stopped.
Therefore, even if static electricity from the outside flows into the zoom operation ring 58, there is very little possibility that this static electricity will flow into the conductive connecting screw 56. Therefore, the electronic components inside the interchangeable lens barrel 43 are damaged due to electrostatic breakdown or static electricity. The risk of doing so can be suppressed.
Further, since the photo-curing adhesive 61 does not protrude to the outside of the through hole 60 (the outer peripheral side of the bottom surface of the annular recess 59) and the insulating tape 62 is thin, the insulating tape 62 extends from the bottom surface of the annular recess 59 to the outer peripheral side. There is almost no excitement. Therefore, when the rubber ring 64 is attached to the zoom operation ring 58, a part of the rubber ring 64 (part corresponding to the insulating tape 62) does not protrude to the outer peripheral side compared to other parts of the rubber ring 64.
In addition, since it is not necessary to increase the size of the zoom operation ring 58 (insulating member), the degree of freedom in designing the interchangeable lens barrel 43 does not decrease. Furthermore, it is not necessary to provide a grounding structure (for example, a grounding pattern provided on the control boards CB1 and CB2) inside the interchangeable lens barrel 43.
Further, since the zoom operation ring 58 includes the through hole 60, the attaching operation of the connecting screw 56 to the zoom cam ring 52 (female screw hole 54) can be performed after the zoom operation ring 58 is attached to the zoom cam ring 52. Yes. Therefore, the assemblability of the interchangeable lens barrel 43 is good.

Further, as described above, the flexible printed circuit board 33 is adhered to the metal plate 12 of the camera body 10, and one end of the flexible printed circuit board 33 is connected to the circuit pattern (control circuit) of the control board. Further, the image pickup device 30 is connected to the control board, and a microcomputer, an electric resistance, and the like are mounted on the control board. That is, various electronic components (image sensor 30, microcomputer, electrical resistance, etc.) are electrically connected to the circuit pattern of the control board. Therefore, it is assumed that static electricity from the outside enters the through hole 17 of the resin member 15 from the boundary between the end portion of the artificial leather 20 and the resin member 15 (see FIG. 3; the gap between the left end portion of the artificial leather 20 and the resin member 15 in FIG. 3). Then, since static electricity flows to the electronic component through the metal fixing screw 37, the metal plate 12, the flexible printed circuit board 33, and the control board, there is a possibility that these electronic components may be electrostatically destroyed or broken down due to the static electricity. is there. Similarly, when static electricity from the outside to the camera body 10 is a high voltage, the static electricity may pass through the artificial leather 20 and enter the through hole 16 of the resin member 15, and the same problem occurs in this case.
But the outer circumferential side the whole fixing screw 36 when the light-curable adhesive 3 8 is adhesion insulating material filled in the through hole 16 of the resin member 15 is viewed in the axial direction of the through hole 16 as shown in FIG. 2 has a part component that surrounds the insulating tape 41 was further stuck from the outside to the light curing adhesive 38, the through hole 16 when viewed in the axial direction of the through hole 16, and the fixing screw 36 The photocurable adhesive 38 is covered. That is, the photocurable adhesive 38 and the insulating tape 41 , which are insulating elements different from the resin member 15, cover (electrically) seal the outer end portion of the through hole 16 formed in the resin member 15. ing. Further photocurable adhesive 3 9 is adhesion insulating material coated on the first concave portion 17a of the through hole 17 of the resin member 15 as shown in FIG. 3, for fixed when viewed in the axial direction of the through-holes 17 It has an annular shape around the entire screw 37 from the outer side, through an insulating tape 42 stuck to the light curing adhesive 39 from the outside, comprising a first recess 17a when viewed in the axial direction The holes 17 and the photocurable adhesive 39 are covered. That is, the light curable adhesive 39 and the insulating tape 42 is different insulation elements with the resin member 15 to cover the outer end of the through hole 17 formed in the resin member 15 (electrically) sealing is doing.
Therefore, even if external static electricity flows into the resin member 15, there is very little possibility that this static electricity will flow into the conductive fixing screws 36 and 37, so that the electronic components inside the camera body 10 are damaged due to electrostatic breakdown or static electricity. The fear can be suppressed.
Furthermore, since the photocurable adhesives 38 and 39 do not protrude to the outside of the through hole 16 (the outer peripheral side of the outer peripheral surface of the resin member 15) and the outer peripheral side of the first recess 17a, and the insulating tapes 41 and 42 are thin, The insulating tapes 41 and 42 hardly rise from the outer peripheral surface of the resin member 15 to the outer peripheral side. Therefore, when the artificial leather 20 is attached to the resin member 15, a part of the artificial leather 20 (part corresponding to the insulating tapes 41 and 42) does not protrude to the outer peripheral side compared to other parts of the artificial leather 20. .
In addition, since it is not necessary to increase the size of the resin member 15 (insulating member), the degree of freedom in designing the camera body 10 does not decrease. Furthermore, it is not necessary to provide a ground structure (for example, a ground pattern provided on the control board) inside the camera body 10.
Furthermore, the sealing structure by the photocurable adhesive 39 and the insulating tape 42 (compared to the sealing structure by the photocurable adhesive 38 and the insulating tape 41) includes the photocurable adhesive 39 and the insulating tape 42. Since it is easy to peel off from the resin member 15, it is easy to disassemble the camera body 10 when the camera body 10 breaks down (extract the fixing screw 37 from the female screw hole 14 a and the small diameter hole 17 c). In addition, the sealing structure (compared to the sealing structure by the photocurable adhesive 38 and the insulating tape 41) is less likely to enter the small diameter hole 17c by the photocurable adhesive 39 before being cured. The application | coating operation | work with respect to the resin member 15 of the photocurable adhesive 39 can be performed more easily.

As mentioned above, although this invention was demonstrated based on said each embodiment, this invention is not limited to the said embodiment, It can implement, giving various deformation | transformation.
For example, the female screw hole 54 is changed to a simple through hole (not formed with a thread groove), and a press-fitting portion (a portion corresponding to the male screw portion 56b) into which the connecting screw 56 is press-fitted into the through-hole, and the press-fitting It may be changed to a connecting pin integrally including a head having a larger diameter than the portion (a portion corresponding to the head 56a).
At least one of the photocurable adhesive 38, the photocurable adhesive 39, and the photocurable adhesive 61 (not photocurable) is an ordinary adhesive (consisting of a viscous fluid before curing and an adhesive force after curing) May be changed to a compound (for semiconductor sealing) (viscous fluid). Alternatively, at least one of the photocurable adhesive 38, the photocurable adhesive 39, and the photocurable adhesive 61 (which can be in close contact with the inner surface of the through hole of the insulating member) or an electrical insulating putty You may change to a gel.

The insulating tapes 41, 42, 62 may be changed to an insulating sheet having no adhesiveness.
Instead of the rubber ring 64, an annular member (annular elastic member) made of an elastic material made of resin may be used.
The entire body case 11 of the camera body 10 may be formed of an insulating member (having a through hole), and a conductive member facing the insulating member (conducting with an electronic component) may be provided on the inner side. Similarly, the entire rotation operation ring (zoom cam ring 52 and zoom operation ring 58) of the interchangeable lens barrel 43 is formed of an insulating member (having a through hole), and is opposed to the insulating member on the inner side (electronic A conductive member (which conducts with the component) may be provided.

Further, as shown in FIG. 8, the insulating member and the conductive member are separated from each other (however, a part of the insulating member separated from the through hole may be brought into contact with the conductive member), (the fixing screw 36, 37, the entire conductive “connecting member” (corresponding to the connecting screw 56) is connected to the conductive member through the through hole of the insulating member (for example, the conductive member and another member adjacent to the conductive member are connected to the connecting member) And connect the entire connecting member closer to the conductive member than the through hole (but close the through hole and the connecting member) and connect within the range of the through hole when viewed in the axial direction of the through hole. The member may be located.
Further, as shown in FIG. 9, when viewed in the axial direction of the through hole of the insulating member, only a part of the connecting member may be positioned within the range of the through hole. Note that the through hole of the insulating member in FIG. 9 is not a hole for inserting the connecting member, but a hole for use for another purpose (a hole required for various design reasons). That is, in the modification of FIG. 9, after connecting a connecting member to a conductive member, the insulating member is put on the outside of the conductive member.
8 and 9 also, the adhesive insulating material ( second insulating element) such as a photo-curing adhesive that is in close contact with the inner surface of the through hole of the insulating member is formed as shown in FIG. The whole may be filled, or it may be an annular shape that is in close contact with the inner peripheral surface of the through hole. In any case, an insulating sheet ( from the outside of the insulating member to the adhesive insulating material ) A first insulating element) is adhered. 8 and 9 also, the adhesive insulating material and the insulating sheet can suppress static electricity from flowing to the conductive connecting member through the through hole.

The camera body 1 0 and interchangeable lens 4 3 of the above embodiments, assuming an electronic image pickup device detachable interchangeable lens 43 to the camera body 10 (e.g., device forms such as single-lens reflex) However, the present invention may be applied to a camera ( electronic imaging device ) in which the camera body and the lens barrel are integrated (unseparable). The present invention includes a lens, a prism, a filter (optical low pass filter, a lens filter (polarizing filter, etc. ND filter), etc.), I der which comprises a housing with a built-in optical element and electronic component such as a mirror, a camera An electronic device other than (camera body 10, interchangeable lens barrel 43) or an electronic imaging device , for example, a portable terminal such as a smartphone or a tablet computer (at least a part of a portable terminal case constituting the outer shell of the portable terminal is an insulating member) And a conductive member is provided on the inside thereof.

10 Camera body (electronic equipment) (electronic imaging device)
11 Body case
11a Grip part 12 Metal plate (conductive member)
13 14 Circular convex part 13a 14a Female screw hole 15 Resin member (insulating member)
16 Through hole 16a Recess 16b Small diameter hole 17 Through hole 17a First recess 17b Second recess 17c Small diameter hole 20 Artificial leather (exterior member) (insulating member)
22 opening hole 23 body side mounting ring 24 body side mounting surface 25 body side bayonet claw 26 lock pin 27 lock release button 28 operation dial 29 intermediate support plate 29a central rectangular hole 30 imaging element (optical element)
31 Contact pin 33 Flexible printed circuit board (circuit board)
34 Convex relief hole 36 37 Fixing screw (connecting member)
36a 37a Head portion 36b 37b Male thread portion 38 39 Photo-curing adhesive ( second insulating element)
41 42 Insulating tape ( first insulating element)
43 Interchangeable lens barrel (electronic equipment) (electronic imaging device)
44 Front fixed ring (housing)
45 Rear fixed ring (housing)
46 Linear guide ring 47 Mount ring 48 First group support member 49 Second group support member 50 Third group support member 51 Zoom resistance plate 52 Zoom cam ring (conductive member)
53 Cam groove 54 Female screw hole 56 Connection screw (connection member)
56a Head 56b Male thread portion 58 Zoom operation ring (exterior member) (insulating member)
59 annular recess 60 through hole 61 photo-curable adhesive ( second insulating element)
62 Insulating tape ( first insulating element)
64 Rubber ring CB1 CB2 Control board FPB1 Flexible printed circuit board L1 First lens group (optical element)
L2 Second lens group (optical element)
L3 Third lens group (optical element)

Claims (6)

An insulative member constituting at least a part of a housing containing an electronic component or at least a part of an exterior member provided in the housing;
A conductive member disposed inside the casing inside the insulating member and conducting with the electronic component;
A through hole formed in the insulating member and penetrating the outer space of the insulating member and the space on the conductive member side;
A first insulating element that is larger than the through hole and is supported on the outer surface of the insulating member at the peripheral edge of the through hole and covers the through hole from the outside;
A second insulating element located in the through hole;
An electronic device comprising: The electronic device according to claim 1,
The electronic device in which the conductive member is disposed to face the insulating member. The electronic device according to claim 1 or 2,
The electronic device in which the insulating member and the conductive member are connected by a conductive connecting member inserted into the through hole. The electronic device according to any one of claims 1 to 3,
An electronic apparatus in which at least a part of a circuit board connected to the electronic component is disposed between the insulating member and the conductive member. The electronic device according to any one of claims 1 to 4,
The electronic apparatus is an electronic apparatus that is an electronic imaging apparatus in which at least a part of an outer shell is formed of the insulating member. The electronic device according to any one of claims 1 to 4,
The electronic device is an electronic device which is a portable terminal in which at least a part of an outer shell is configured by the insulating member.

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