JP2003101163A - Electric wiring board unit and equipment incorporated therein - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flexible electric wiring board unit, together with an equipment incorporating the electric wiring board, in which the equipment is easily assembled to the flexible electric wiring board, with a simple structure. SOLUTION: Related to a flexible wiring board (FPC) unit 41, a tinned wire 45 is soldered orthogonal to a folding line 42i for securing, on an FCP42 on which a CPU43, etc., are mounted. An escape hole is provided at such position on the folding line 42i as corresponding to the tinned wire 45. When assembling the FPC unit 41 to a camera body 22, it is plastically deformed with the tinned wire 45 outside to be a bent form. The bent FPC unit 41 is attached to the camera body 22. Since the FPC unit 41 is molded into assembly form, no fluctuation occurs for easy assembly with a simple structure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wiring board unit having an electric wiring board and a structure of a device incorporating the electric wiring board.

[0002]

2. Description of the Related Art Conventionally, an FPC mounting structure of a camera in which a flexible electric wiring substrate (hereinafter, referred to as FPC) is incorporated is disclosed in Japanese Patent Laid-Open No. 8-234288, in which one end of the FPC is mounted on a shutter unit control substrate. A part of the FPC on the other end side is extended from this connection part along the shape of the surface of the camera body having irregularities, and the electrical connection part provided on the other end part is connected to a circuit other than the shutter unit control board. It is to be electrically connected to the substrate.

[0003]

However, the above-mentioned Japanese Unexamined Patent Publication (Kokai) No. Hei 8
No. 234288 discloses the above FPC.
Has a planar shape in which electric parts are mounted before being incorporated into the camera body. When assembled, it was difficult to hold the FPC in a stable shape by simply bending the FPC. Therefore, at the time of assembling, the FPC must be mounted while being manually bent according to the irregularities of the camera body, which requires a lot of man-hours and assembly work is difficult.

The present invention has been made in order to solve the above-mentioned problems, and does not require a lot of man-hours for assembling the electric board, and the electric wiring can be surely assembled and the structure thereof is extremely simple. An object of the present invention is to provide a board unit or a device incorporating the electric wiring board.

[0005]

An electric wiring board unit according to claim 1 of the present invention is mounted with a plastically deformable electric conducting wire, and a portion including the electric conducting wire is bent into a three-dimensional shape, and the electric wiring board unit is attached to another unit. The flexible electric wiring board is mountable, and the flexible electric wiring board is mounted on another unit in a three-dimensional shape by bending a portion including the electric conductor.

An electric wiring board unit according to a second aspect of the present invention is the electric wiring board unit according to the first aspect, wherein the bent portion of the portion including the electric conductor is:
There are multiple locations.

An electric wiring board unit according to a third aspect of the present invention is plastically deformed to electrically connect the first unit, the second unit, and the first unit and the second unit. A flexible electric wiring board having a possible three-dimensional shape by bending the portion including the electric conductor, and a flexible electric wiring board having the three-dimensional shape by bending the portion including the electric conductor. The first unit and the second unit are electrically connected.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of a flexible electric wiring board (hereinafter referred to as FPC) unit 1 according to a first embodiment of the present invention, and FIG. 2 is a perspective view of the FPC unit 1 before being bent. 3 is a view showing a bent state of the FPC unit 1 in a cross section taken along the line AA of FIG.

As shown in the perspective view of FIG. 1, the FPC unit 1 of this embodiment includes an FPC 2 and a tin-plated copper wire (hereinafter, referred to as a plastically deformable electric wire mounted on the FPC 2).
3), an electric element member (not shown), and the like. The tin-plated wire 3 has some rigidity but can be plastically deformed by a certain amount of force, and retains its deformed shape after plastic deformation. The tin-plated wire applied to the above embodiment is similar.

The FPC unit 1 is assembled to other constituent units in a state of being bent at a right angle along a bending line 2c described later.

The FPC 1 is provided with two land patterns (hereinafter referred to as lands) 2a which are arranged so as to extend in the direction orthogonal to the bending line 2c. The land 2a
The distance L2 between the two outer sides is the length L1 of the tin-plated wire 3 described above.
Make the distance slightly longer. Further, the FPC 2 is provided with an escape hole 2b which is a long hole in a direction orthogonal to the bending line 2c at a portion where a line connecting the bending line 2c and the land 2a intersects.

Both ends of the linear tin-plated wire 3 are soldered on the lands 2a with the solder 4, and the escape hole 2 is formed.
It is mounted and fixed on the FPC 2 in a posture orthogonal to the bending line 2c on b.

The FPC unit 1 to which the tin-plated wire 3 is fixed is bent at a right angle in the D direction along the bending line 2c in FIG. 2 when it is assembled to another constituent unit. The sectional view of FIG. 3 shows the bent state. Since the tin-plated wire 3 is plastically deformed, the FPC 2 is held in a shape bent at a right angle.

Further, in the bent state of the FPC unit 1, the bent outer side of the tin-plated wire 3 has an escape hole 2b.
The state in which the FPC 2 is pushed in can be avoided.

The tin-plated wire 3 can also have an electrical connection function.

Here, the bent portion when the FPC 2 has the escape hole 2b and when it does not have the escape hole 2b will be described. FIG. 6 is an enlarged cross-sectional view of a bent portion of the FPC 2 having an escape hole.
In the bent state, the tin-plated wire 3 extends outward around the neutral line N and is compressed inside, as shown in FIG. That is, if the length of the bending range at the angle θ of the bending range on the neutral line N is En, the outside length is Eo, the inside length is Ei, and the bending radius on the neutral line N is R,
The above-mentioned lengths are En = R × θ Eo = (R + D / 2) × θ Ei = (RD−2) × θ.

On the other hand, if the length of the FPC 2 in the bent state at the angle θ in the bent state is substantially equal to the length Eo on the neutral line N, as a result, the extension D / outside the tin-plated wire 3 is obtained. Two
Xθ enters the clearance hole 2c of the FPC 2 and the tensioned state of the FPC 2 can be avoided. FPC2
If there is no tension, the FPC 2 is not internally stressed, and the bent state of the FPC unit 1 is stably maintained.

On the other hand, considering the case of the FPC unit 1'to which the FPC 2'without the escape hole shown in the perspective view of FIG. 4 is applied, since the above-mentioned escape hole is not provided, BB of FIG. Like the FPC unit 1'in the folded state shown in FIG. 5, the FPC is placed outside the bent portion of the tin-plated wire 3.
2'is pressed. Therefore, the FPC 2 ′ is stretched and the bending angle is returned, and the bending shape is not stable. Further, when the FPC 2'is in a stretched state, there is a possibility that the soldering portion may be peeled off due to the shear stress generated by the shearing force. If the bending radius of the FPC 2'when bending is large, the above-mentioned phenomenon of easy tensioning does not occur, so that there is no need to provide an escape hole.

Although the bent state of FIGS. 3 and 5 shows the case where the FPC 2 is bent with the tin-plated wire 3 inside, the FPC may be bent with the tin-plated wire outside. In the case of this FPC, the compressed part inside the bend of the tin-plated wire will enter the clearance hole of the PC.
There is no slack on the side.

Next, a flexible electric wiring board (FPC) unit 5 according to a second embodiment of the present invention will be described with reference to FIG.
This will be described using 8. 7 is a perspective view of the FPC unit 5 before bending, and FIG. 8 is a sectional view taken along line X1-X1 of FIG. 7 showing a bent state of the FPC unit 5.

As shown in the perspective view of FIG. 7, the FPC unit 5 includes an FPC 6, a tin-plated wire 7 which is a plastically deformable electric wire which is mounted on the FPC 6 and has a tip bending portion 7a, and an electric element. And a member (not shown) and the like. Like the FPC unit 1, the FPC unit 5 is also assembled to other constituent units in a state of being bent at a right angle along a bending line 6c described later.

The FPC 6 is provided with two lands 6a arranged on one surface divided by the bending line 6c along the direction orthogonal to the bending line 6c. Also,
The FPC 6 is provided with a cutout 6b on the bent line 6c and at a portion where the tin-plated wire 7 intersects.

The tin-plated wire 7 is mounted and fixed by being soldered with solder 8 on the two lands 6a on the opposite side of the tip bending portion 7a. At that time, the tip bent portion 7a side of the tin-plated wire 7 is moved from the notch 6b to the back surface side of the FPC 6.

The FPC unit 5 to which the tin-plated wire 7 is fixed is plastically deformed when the tin-plated wire 7 is attached to the other constituent unit so that the tip bent portion 7a of the tin-plated wire 7 is located outside and the FPC 6 is bent along the bent line 6c. And bend it at a right angle. FIG. 8, which is a cross-sectional view taken along the line X1 -X1 of FIG. 7, shows the bent state. Since the back surface of the FPC 6 is pressed by the tip bent portion 7a of the tin-plated wire 7, the FPC 6 is held in the bent shape. .

In the FPC unit 5, the tin-plated wire 7 is free from the bent end portion 7a side.
The PC 6 is maintained in a stable bent shape without being stretched or loosened.

Next, a flexible electric wiring board (FPC) unit 9 according to a third embodiment of the present invention will be described with reference to FIG.
A description will be given using 10. FIG. 9 shows the FPC unit 9 described above.
10 is a perspective view of the FPC unit 9 before bending, and FIG. 10 is a sectional view taken along line X2--X2 of FIG.

As shown in the perspective view of FIG. 9, the FPC unit 9 includes an FPC 10 and a tin-plated wire 11 which is a plastically deformable electric wire having a tip bending portion 11a as a member mounted on the FPC 10, and , An electric element member (not shown) and the like. The FPC unit 9 is also F
Similar to the PC unit 1, it is assembled to other constituent units in a state of being bent at a right angle along a bending line 10c described later.

The FPC 10 is provided with two lands 10a on one surface divided by the bending line 10c along a direction orthogonal to the bending line 10c. Also, F
The PC 10 is provided with an insertion hole 10b at a portion of the bent line 10c where the tin-plated wire 11 intersects.

When the tin-plated wire 11 is fixed on the FPC 10, the tip bent portion 11a side is held in a state of being inserted from the insertion hole portion 10b to the back surface side. Then, in the holding state, the tin-plated wire 11 is soldered with the solder 12 on the two lands 10a on the opposite side to the tip bent portion 11a, and mounted and fixed in a posture orthogonal to the bent line 10c.

When the FPC unit 10 to which the tin-plated wire 11 is fixed is assembled to the above-mentioned other constituent units, the FPC 11 is plastically deformed with the tip bent portion 11a of the tin-plated wire 11 facing outward, and the FPC 11 is guided along the bent line 10c. Can be bent at a right angle. FIG. 10, which is a sectional view taken along the line X2--X2 of FIG. 9, shows the bent state, in which the back surface of the FPC 10 is pressed by the tip bent portion 11a of the tin-plated wire 11,
The FPC 10 is held in a shape bent at a right angle. In the bent state, the tip of the tinned wire 11 is bent 11
Since the a side is in the free state, the FPC 10 is not in the stretched state or the loosened state.

Next, referring to FIG.
This will be described using 1 to 16. FIG. 11 is an exploded perspective view of the camera unit 21. FIG. 12 is a development view of the camera control circuit FPC unit mounted on the camera body of the camera unit 21, and FIG. 13 is an exploded perspective view of the camera body and the camera control circuit FPC unit. FIG. 14 is a development view of the AF FPC unit mounted on the AF unit in the camera unit 21, and FIG. 15 is a perspective view showing a bent state of the AF FPC unit. FIG. 16 shows the F for AF described above.
It is a perspective view showing a state where a PC unit is attached to an AF unit.

The camera unit 21 is a unit with the outer cover of the camera removed, and as shown in the perspective view of FIG.
The lens barrel portion 2 arranged in the center of the front surface of the camera body 22
3, a film cartridge chamber 22a arranged on the left side of the camera body 22, a spool chamber 22b arranged on the right side of the camera body 22, a viewfinder unit 24, a strobe unit 25 arranged on the upper part of the camera body 22, Strobe light emitting capacitor 26, second unit A
An F (autofocus) unit 50, an AF FPC unit (flexible electric wiring board unit) 31 mounted on the AF unit, and a main control circuit FPC unit 41 (flexible electric wiring mounted on the front surface of the camera body 22). Board unit) and the like.

The AF unit 50 has AF light receiving lenses 52A and 52B housed in an AF housing 51 as shown in the perspective view of FIG.

The AF unit 50 is assembled to the camera body 22 with the AF FPC unit 31 mounted as shown in the perspective view of FIG. In the assembled state, the main control circuit FPC unit 41 and the AF F
The PC unit 31 is electrically connected.

FPC unit 41 for the main control circuit
FPC42 and FPC as shown in the development view of FIG.
A camera control CPU (C
OB type) 43 or the like, and tin-plated wires 44 and 45 that are plastically deformable electric wires.

The FPC 42 has a constricted portion 42a at the center for avoiding the lens barrel portion 23. Further, a contact pattern portion (electrical connection portion) 42c composed of a contact group, a boss hole 42b for positioning the contact pattern and a positioning pin hole 42d are provided on the right side of the constricted portion 42a, and a screw for mounting the FPC 42 is provided. Insertion hole 4
2e is provided. Further, two solder lands 42f are provided for soldering the tin-plated wires 44 and 45, straddling the constricted portion 42a, and the bent line 42 on the upper left side is provided.
Two lands 42g are provided across i and in a direction orthogonal to the bending line. Further, an escape hole 42h, which is a long hole in the intersecting direction, is provided at a position where the tin-plated wire 44 intersects on the bent line 42i.

The tin-plated wires 44 and 45 are soldered to the front surface side (top in FIG. 12) by the two lands 42f or 42g while straddling the constricted portion 42a of the FPC 42 or the bent line 42i. The tin-plated wire 44 does not have to be a plastically deformable wire because it does not need to be deformed during assembly. However, if the wire rod is made of a single copper material as described above and has a certain degree of rigidity, the flatness of the constricted portion of the FPC 42 can be ensured and the assembly is easy.

FP for main control circuit having the above configuration
When the C unit 41 is attached to the camera body 22, first, as shown in the perspective view of FIG. 13, the tin-plated wire 45 is placed outside and plastically deformed, and the FPC 42 is bent.
Make a shape that is bent at a right angle along. At that time, the escape hole 42h becomes an escape portion when the tin-plated wire 45 is deformed.

FP for main control circuit having the above-mentioned bent shape
The C unit 41 is attached to the camera body 22 by inserting the boss portion 22c and the positioning pin 22d of the camera body 22 into the boss hole 42b and the positioning pin hole of the FPC 42. The screw 48 is screwed into the screw hole 22e of the camera body through the screw insertion hole 42e of the FPC 42, and the FPC unit 41 is in the mounted state.

On the other hand, the AF FPC unit 31 is shown in FIG.
4, an FPC 32 and a pair of AF line sensors 35A as members mounted on the FPC 32,
It includes electrical components such as 35B, and tin-plated wires 36A, 36B, and 36C that are plastically deformable electric conductors.

The FPC 32 comprises a contact surface portion 32n, a rising surface portion 32o, a horizontal surface portion 32p, and a line sensor mounting surface portion 32q. Then, as bending lines that are bent at the time of assembly, the contact surface portion 32n and the rising surface portion 32o, the rising surface portion 32o, and the horizontal surface portion 32p.
Bending lines 32j, 32k, 32m are respectively located between the bending planes 32p, 32k and 32m and between the horizontal plane portion 32p and the sensor mounting surface portion 32q. Each two lands 3
2d, 32e, and 32f are arranged to face each other. Further, on each bent line, a clearance hole 32, which is a long hole in the intersecting direction, is provided at a position where the tin-plated wire to be soldered intersects.
g, 32h, 32i are provided.

On the contact surface portion 32n, a contact pattern portion (electrical connection portion) 32c composed of a contact group, a boss hole 32a for positioning the contact pattern, and a positioning pin hole 32.
b and are provided.

The tin-plated wires 6A, 36B and 36C are soldered to the two lands 32d, 32e and 32f while straddling the bent lines 32j, 32k and 32m, respectively. However, only the tinned wire 36C is shown in FIG.
It is soldered to the back side of the upper FPC 32.

When the AF unit 50 is mounted, the AF FPC unit 31 having the above-described structure is
As shown in the perspective view of FIG. 15, the bending lines 32j,
Tin plated wires 36A, 36B, 3 along 32k, 32m
6C is plastically deformed and bent. However, the bent line 32j is bent with the tin-plated wire 36A inside. The bent lines 32k and 32m are bent with the tinned wires 36B and 36C facing outward. At that time, the escape holes 32g, 32h, 32i serve as escape portions when the tin-plated wires are deformed.

The line sensors 35A and 35B of the line sensor mounting surface portion 32q of the FPC unit 32 bent as shown in FIG. 15 are adhesively fixed to the AF housing 51 of the AF unit 50 as shown in the perspective view of FIG.

AF with the FPC unit 31 attached
As shown in the perspective view of FIG. 11, the unit 50 is incorporated in the camera body 22 in a state where the main control circuit FPC unit 41 is mounted. That is, the AF unit 50
Is fixed to a predetermined position above the camera body 22. further,
The boss hole 32a and the positioning pin hole 32b of the FPC 32 are inserted into the camera body side boss portion 22c and the positioning pin 22d. The rubber seat 33 and the washer 34 are pressed against each other, and the screw 49 is inserted into the screw part of the boss 22c.

FPC unit 41 for the main control circuit
The camera unit 21 in a state in which the AF unit with the AF FPC unit is attached is in an assembled state, and the contact pattern portion 42c of the FPC unit 41 for the main control circuit and the contact pattern portion 32c of the FPC unit 31 for AF are connected. The electrical connection is made.

The camera unit 21 of this embodiment described above.
In the main control circuit FPC unit 41 or A
When the FPC unit 31 for F is assembled, the FPC 4
By plastically deforming the tin-plated wires 2 and 32, the tin-plated wires 2 and 32 can be formed into an assembly shape to the camera body 22. Therefore, even if the camera body 22 to be assembled has a complicated structure, the FPC units 41 and 31 can be easily incorporated without wobbling. Also,
Since the molding work of the FPC unit is easy, F
The FPC unit can be stored or transported in a flat state until just before the PC is attached.

As a modification of the AF FPC unit 31, the FPC unit 31A shown in the perspective view of FIG. 17 can be proposed. FPC unit 3 of this modification
1A applies a straight tin-plated wire 36D shown in the perspective view of FIG. 17 which is not plastically deformed, instead of the tin-plated wire 36B shown in the perspective view of FIG. The tinned wire 36
D is the two lands 32 on the start-up part 32o of the FPC.
Soldered at r. The tin-plated wire 36C soldered to the line sensor mounting surface portion 32q is unnecessary. Other structures are similar to those of the FPC unit 31 shown in FIG.

When the FPC unit 31A is assembled to the AF unit 50A, first, the line sensors 35A and 35B mounted on the FPC 31A are adhesively fixed to the AF housing 51A. Bending line 32 of FPC unit 31A
Only j is bent through the tinned wire 36A. In this state, the tip of the tin-plated wire 36D is inserted into the tin-plated wire insertion hole 51Aa of the casing 51A of the AF unit 50A. By inserting the tin-plated wire 36D, the horizontal plane portion 32p is automatically held in a state of being bent horizontally as shown in the perspective view of FIG. 17, and the FP attached to the AF sensor 50A.
The C unit 31A has a shape that can be incorporated into the camera body 22.

Next, referring to FIG.
8 to 22 will be described. FIG. 18 is an exploded perspective view of the camera unit 61. FIG. 19 is a perspective view showing a state in which the FPC unit for AF is attached to the front plate unit which constitutes the camera unit 61. 20 is a development view of the camera control circuit FPC unit mounted on the front plate unit of the camera unit 21. FIG.
FIG. 6 is a perspective view showing a bent state of the camera control circuit FPC. FIG. 22 is a perspective view showing a state in which the FPC for camera control circuit is attached to the front plate unit that constitutes the camera unit 61.

The camera unit 61 is a unit in a state where the outer cover of the camera is removed. As shown in FIG. 18, a camera body 62 which is an assembly unit and a front plate mounted on the central front surface of the camera body 62. The unit 63 is a so-called single-lens reflex type camera unit.

In the camera body 62, a film cartridge chamber 62a arranged on the left side, a spool chamber 62b arranged on the right side, an aperture portion 62c arranged in the central portion, and a front portion of the aperture portion 62c. A lens barrel housing portion 62d is provided.

As shown in the perspective views of FIGS. 18 and 19, the front plate unit 63 is a front plate unit main body 64 which is a first unit having a lens frame portion 64a, and a lens mount provided on the lens frame portion 64a. A portion 65, a pentaprism portion 64d provided above the unit body 64 and an eyepiece 68 in a viewfinder eyepiece frame 64e, a movable mirror 66 and a sub-mirror 69 housed in a central opening 64f of the unit body 64, An AF optical system accommodating portion 64g provided below the sub-mirror 69, and a camera control circuit FPC unit (flexible electric wiring board unit, second unit) 71 mounted on the upper portion and front portion of the front plate unit body 64. And the front plate unit body 64
AF FPC unit 91 mounted on the bottom and side of the camera
(Flexible electric wiring board unit).

The FPC unit 91 for AF is shown in FIG.
As shown in FIG. 5, it has an FPC 92, tin-plated wires 94 and 95 as connectors mounted on the FPC 92, a connector 93, and an AF optical system (not shown).

The FPC 92 has bending lines 92e,
Land 92c arranged on an extension line orthogonal to 92f,
92d is provided, and tin-plated wires 94, 9 are provided on the land portion thereof.
5 is soldered and mounted. Bending lines 92e, 9
Escape holes 92a and 92b, which are long holes in the crossing direction, are provided at positions where the tin-plated wires 94 and 95 intersect on 2f.

When the AF FPC unit 91 is attached to the front plate unit body 64, tin-plated wires 94 and 95 are used.
To plastically deform the FPC 92 to bend the bending lines 92e, 92
When the AF optical system is in the state of being bent along f,
It is fixed in the F optical system accommodating portion 64g, and further, FPC92
The FPC unit 91 for AF is attached by fixing to the side surface of the front plate unit body 64.

FPC unit 71 for camera control circuit
Shows the FPC 72 and the FPC 72 as shown in the development view of FIG.
72 is a member mounted on the connector 73, 74,
Electrical component (not shown) and tinned wires 75, 7
6, 77 and.

The FPC 72 has upper surface portions 72a to 72d.
And front portions 72e, 72f in which the connectors 73, 74, screw insertion holes 72y, 72z, boss escape holes 72x, etc. are arranged.
Consists of. Then, as folding lines that are bent at the time of assembly, the upper surface portions 72a and 72b,
Bending line 72s, 72t, 72u, 72v, 72w between 72c, between upper surface portions 72c and 72d, between upper surface portion 72a and front surface portion 72e, and between upper surface portion 72d and front surface portion 72f, respectively.
Is located. Each of the folding lines 72s, 72t, 7
The tin-plated wire 75 is provided at a position on a straight line connecting between 2u and the vicinity of both ends of the upper surface, and a plurality of pairs of lands 72m, 72 for soldering
n, 72o, and 72p are arranged on the back surface side (top in FIG. 20). In addition, two pairs of lands 72q and 72r for soldering tin-plated wires 76 and 77 are provided at positions on an extension line orthogonal to the bending lines 72v and 72w, respectively, on the front surface side and the back surface side (FIG. 20).
(Above).

Further, the upper surface portions 72a to 72a of the FPC 72 are
Escape holes 72g, 72h, 72i, which are elongated holes along the tin-plated wire, are provided at positions where the bent lines 72s, 72t, 72u of 72d and the tin-plated wire 75 intersect. Further, on the bent lines 72v, 72w, escape holes 72j, 72k, which are elongated holes along the tin-plated wires, are provided at positions intersecting with the tin-plated wires 76, 77.

The tin-plated wire 75 is composed of lands 72m and 7m.
Bend lines 72s, 72t, at 2n, 72o, 72p,
72u are crossed and soldered to the back side (FIG. 20). Further, the tinned wires 76 and 77 are connected to the land 72.
It is soldered to the front surface side or the back surface side (on FIG. 20) while intersecting the bending lines 72v and 72w at q and 72r.

When the FPC unit 71 for camera control circuit configured as described above is attached to the front plate unit main body 64, it has a bent shape as shown in the perspective view of FIG. That is, the tin-plated wire 75 is plastically deformed and bent along the bending lines 72s, 72u or 72t to form the upper surface portions 72b, 72c into a chevron shape. Further, the tin-plated wires 76 and 77 are placed inside or outside to be plastically deformed, and the front portions 72e and 72f are bent downward along the bending lines 72v and 72w.

F for the camera control circuit in the bent shape
The PC unit 71 is placed on the upper portion of the front plate unit main body 64 as shown in the perspective view of FIG. 22, and attached to the front surface portion with screws 98 and 99. And F for camera control circuit
When the PC unit 71 and the AF FPC unit 91 are electrically connected by coupling the connectors 73 and 93, the assembly as the front plate unit 63 is completed.

Further, in order to assemble the front plate unit 63 to the camera body 62 to complete the camera unit 61, the FPC unit 71 for the camera control circuit and the F-unit for AF are used.
The front plate unit 63 to which the PC unit 91 is attached is screwed into the camera body side screw holes 62e and 62f through the screw insertion holes 64h and 64i with respect to the camera body 62 as shown in the perspective view of FIG. To do. This completes the assembly of the camera unit 61.

As described above, according to the camera unit 61 of the present embodiment, when the main control circuit FPC unit 71 is assembled, an F having a long left and right outer shape is assembled.
By bending the tin-plated wires of the PC 72, the PC 72 can be molded into an assembly shape to the front plate unit main body, and the FPC 72 can be easily installed in the front plate unit main body 64 without wobbling.

Next, a printed wiring board unit 101 which is an electric wiring board unit according to a sixth embodiment of the present invention will be described with reference to FIGS. FIG. 23 is a perspective view of the printed wiring board unit 101 before being bent, and FIG. 24 is a perspective view of the printed wiring board unit 10.
It is a perspective view in the bending state of 1.

The printed wiring board unit 101 is
As shown in FIG. 23, a printed wiring board 102, which is a hard printed wiring board, and six tin-plated wires 105 to 110, which are plastically deformable electric conductors, as members mounted on the printed wiring board. I, which is an element member
It comprises a C103, a resistance element 104, and the like.

The printed wiring board 102 has a folding line 1
Mounting surface (first electric board) 1 arranged on both sides of 02k
02i and the mounting surface (second electric board) 102j.
An opening 102a is provided along the fold line 102k, and a V-shaped cut groove 102b is provided on the lower surface side along the fold line 102k. In addition, a plurality of pairs of lands 102c and the like arranged facing each other along a direction orthogonal to the folding line 102k are provided. The lands 102 and the like are mounted on the mounting surfaces 102i and 102 of the printed wiring board 102.
It is electrically connected to the electric circuit connection pattern on j, and by mounting the tin-plated wires 105 to 110 as described later, the land portions of each pair are electrically connected.

The tin-plated wires 105 to 110 are mounted and fixed by soldering with the solder 111 on the plurality of pairs of lands 102c and the like.

The printed wiring board unit 101 having the tin-plated wires 105 to 110 fixed thereto is plastically deformed with the tin-plated wire side inside as shown in FIG. The wiring board 102 is bent at a right angle along the folding line 102k. Mounting surface 102i and 1 by the above-mentioned right angle bending
Although 02j is cracked and separated, both circuits are electrically connected by tinned wires 105-110.

The printed wiring board unit 101 is
It can be incorporated into another component unit in the folded state as described above.

The printed wiring board unit 101 of the sixth embodiment described above is an example applied to a hard printed wiring board, and the bent shape is maintained by plastic deformation of the tin-plated wire which also serves as a conductive connecting member. Therefore, it is not necessary to use an FPC or the like for connection between the printed wiring boards, and the printed wiring board can be molded into a desired shape, so that it can be easily incorporated into another unit.

An annealed copper wire or a thin metal plate may be applied instead of the tin-plated wire applied to each of the above-mentioned embodiments. In particular, when not used as a wire for electrical connection, a plastically deformable non-conductive material may be applied, or a plastically deformable metal wire covered with an insulating material may be applied. In this case, by making the surface non-conductive, there is no risk of contact between the metal wire and the conductive part on the FPC or the printed wiring board. The tin-plated wire FP
The mounting on C or the printed wiring board may be either automatic mounting or manual mounting.

The bending angle of the tin-plated wire at the time of assembling the FPC to the equipment unit is not limited to the right angle,
Since it is determined by the assembly shape of the equipment unit,
You may make it plastically deform with a predetermined curvature.
Further, in each of the above-described embodiments, the tin-plated wire is fixed so as to be orthogonal to the bent line, but the invention is not limited to this. You may incline and fix to a line.

[0075]

As described above, according to the present invention, when an electric wiring board unit built in a device is incorporated into another unit or device, it is easy to mold it into a predetermined three-dimensional shape, and the assembling efficiency is improved. It is possible to provide an electric wiring board unit that is improved and has a simple configuration itself, or a device that incorporates the electric wiring board unit.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an FPC unit according to a first embodiment of the present invention.

FIG. 2 is a perspective view of the FPC unit according to the first embodiment shown in FIG. 1 before being bent.

FIG. 3 is a diagram showing a bent state of the FPC unit of the first embodiment shown in FIG. 1 above, taken along the line AA in FIG.

FIG. 4 is a perspective view of an FPC unit related to the FPC unit of the first embodiment shown in FIG.

5 is a view showing a bent state of the FPC unit shown in FIG. 4 in a cross section taken along the line BB of FIG.

6 is an enlarged cross-sectional view of a bent portion of an FPC in the FPC unit of the first embodiment shown in FIG. 1 above.

FIG. 7 is a perspective view of an FPC unit according to a second embodiment of the present invention before being bent.

8 is a sectional view of the FPC unit of the second embodiment shown in FIG. 7 in a bent state.

FIG. 9 is a perspective view of an FPC unit according to a third embodiment of the present invention before being bent.

10 is a sectional view of the FPC unit of the third embodiment shown in FIG. 9 in a bent state.

FIG. 11 is an exploded perspective view of a camera unit according to a fourth embodiment of the present invention.

FIG. 12 is a development view of a camera control circuit FPC unit mounted on a camera body in the camera unit of the fourth embodiment shown in FIG. 11;

FIG. 13 is an exploded perspective view of the camera body and the camera control circuit FPC unit in the camera unit of the fourth embodiment shown in FIG. 11;

14 is an AF FP mounted on an AF unit in the camera unit of the fourth embodiment shown in FIG.
It is a development view of a C unit.

FIG. 15 is a perspective view showing a bent state of the AF FPC unit in the camera unit of the fourth embodiment shown in FIG. 11;

16 is a perspective view showing a state in which the AF FPC unit is mounted on the AF unit in the camera unit of the fourth embodiment shown in FIG.

FIG. 17 is a perspective view of an FPC unit of a modified example of the AF FPC unit shown in FIG.

FIG. 18 is an exploded perspective view of a camera unit according to a fifth embodiment of the present invention.

FIG. 19 is a perspective view showing a state in which an AF FPC unit is attached to a front plate unit which constitutes the camera unit of the fifth embodiment shown in FIG.

20 is a development view of a camera control circuit FPC unit mounted on the front plate unit in the camera unit of the fifth embodiment shown in FIG. 18. FIG.

FIG. 21 is a perspective view showing a bent state of the camera control circuit FPC unit mounted on the front plate unit in the camera unit of the fifth embodiment shown in FIG. 18;

22 is a perspective view showing a state where the camera control circuit FPC unit is attached to a front plate unit in the camera unit of the fifth embodiment shown in FIG. 18; FIG.

FIG. 23 is a perspective view of a printed wiring board unit according to a sixth embodiment of the present invention before being bent.

24 is a sectional view of the printed wiring board unit of the sixth embodiment shown in FIG. 23 in a bent state.

[Explanation of symbols]

1, 5, 9 FPC unit (flexible electric wiring board device) 2, 6, 10, 32, 42, 72, 92 FPC (flexible electric wiring board) 2c, 6c, 10c, 32j, 32k, 32m, 42
i, 72s, 72t, 72u, 72v, 72w ... Bending line (foldable portion) 3, 6, 11, 36A, 36B, 36C, 44, 45,
36D, 75, 76, 77, 94, 95, 101-11
0 ... tin-plated wire (electrical wire) 22 ... camera body (first unit) 31,31A, 91 ... AF FPC unit (flexible electric wiring board unit) 41,71 ... camera control circuit FPC unit (Flexible electric wiring board unit, second unit) 50, 50A ... AF unit (second unit) 64. Front plate unit body (first unit) 101 .. Printed wiring board unit (electrical wiring board unit) )

Claims (3)

[Claims] 1. An electric wiring board comprising a flexible electric wiring board on which a plastically deformable electric conductor is mounted, and a portion including the electric conductor is bent into a three-dimensional shape and which can be mounted on another unit. unit. 2. The electric wiring board unit according to claim 1, wherein the bent portion of the portion including the electric conductor is a plurality of portions. 3. A first unit, a second unit, and a plastically deformable electric conductor wire for electrically connecting the first unit and the second unit, the electric wire conductor wire being mounted. A flexible electric wiring board having a three-dimensional shape formed by bending a portion including the electric wiring board built-in device.