JPH1032035A - Round connector and flexible printed board connecting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate soldering of connecting pins, as well as to obtain a round connector with a small size which allows easy soldering of the connecting pins, by giving the projecting amount of the even number of connecting pins provided on a border line, larger than the projecting amount of plural connecting pins provided on the circumference. SOLUTION: In this round connector 70, connecting pins 71A and 71B are inserted to the through holes 161A and 161B, and the through holes 162A and 162B, of the second and the fourth soldering parts 66A and 66B of a flexible printed board 60, and soldered to the connecting lands 163A, 163B, 164A, and 164B respectively. Since the connecting pins 71A provided on the circumference in this round connector 70 can be soldered from the outer side, the soldering can be carried out relatively securely. And since the land parts 163A and 163B where the six connecting pins 71B are soldered can be made large in the relative form, the soldering work of the connecting pins 71B can be carried out easily.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection device for a round connector and a flexible printed circuit board, and is applied to a small electronic device such as a small cylindrical camera head.

[0002]

2. Description of the Related Art Conventionally, for example, in a camera head, a multilayer rigid circuit board on which various circuit components are mounted is built in a housing, and an image sensor is formed by using a flexible printed circuit board or a cable and a connector. The circuit board is connected to the output connector through a flexible printed circuit board or a cable.

[0003]

However, in order to reduce the size of the camera head having such a structure, it is necessary to reduce the size of the output connector.

Generally, in a round connector, if soldering can be performed from the outside, connection can be made by soldering even if connection pins are arranged at relatively narrow intervals. However, connection that can be soldered from the outside is possible. There is a limit on the interval between pins, and when miniaturizing a connector, the arrangement of connection pins becomes a problem.

SUMMARY OF THE INVENTION An object of the present invention is to provide a multi-pin round connector which is small in size and can easily perform the work of soldering the connection pins.

Another object of the present invention is to provide a flexible printed circuit board connecting apparatus which can easily solder connecting pins of a small round connector.

[0007]

According to the present invention, there is provided a circular connector having a linear boundary region having a predetermined width passing through the central axis and dividing the plane orthogonal to the central axis of the connector body into two parts. An even number of connection pins arranged symmetrically on a boundary line, and a plurality of connection pins arranged on a part of the boundary area on a circumference centered on the central axis, and symmetrically arranged on the boundary line. The present invention is characterized in that the arranged even number of connection pins have a larger protrusion amount than the plurality of connection pins arranged on the circumference.

Further, in the connecting device for a flexible printed wiring board according to the present invention, a linear boundary region having a predetermined width passing through the central axis, which divides a surface orthogonal to the central axis of the connector body, into two parts. An even number of connection pins arranged symmetrically on a boundary line parallel to each other, and a plurality of connection pins arranged on a circumference around the center axis and arranged in a part of the boundary region, and on the boundary line A round connector having an even number of symmetrically arranged connection pins having a larger protrusion amount than a plurality of connection pins arranged on the circumference, and a U-shape with the component mounting surface outside. It has a bent chip component mounting portion and a soldering portion formed by bending a protruding piece protruding in the longitudinal direction of the chip component mounting portion, and each connection pin of the round connector is inserted into the soldering portion. Each through hole is provided A connection land portion of each of the connection pins is provided on the soldering portion so as to surround each of the through holes into which a plurality of connection pins arranged on the circumference of the circular connector are inserted. Each of the connection lands of an even number of connection pins symmetrically arranged comprises a flexible printed wiring board provided on the component mounting surface, and each of the connection pins of the round connector is provided on the soldering portion. And is soldered to each connection land on the soldering portion and each connection land on the component mounting surface.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

A connection device for a round connector and a flexible printed circuit board according to the present invention is applied to, for example, a camera head 1 having a structure as shown in FIGS.

The camera head 1 is a cylindrical small camera head having a size of about a little finger. As shown in a longitudinal sectional view of a main part of the camera head 1 in FIG. Packing 30, CCD image sensor 40, back plate 50, flexible printed wiring board 6
Camera head body 1 consisting of 0, round connector 70, etc.
00 is stored. The camera head body 100 is housed in the outer casing 10 in a state where the flexible printed wiring board 60 is covered with a cylindrical inner case 80.

Two outer flanges 11A and 11B are provided on the outer periphery of the outer casing 10 for position control when the outer casing 10 is mounted on a holder 200, which will be described later. Parts 12A and 12B are provided. In the camera head 1, a lens barrel 2 provided with an imaging lens (not shown) is detachably screwed to a front-side screw portion 12 </ b> A in the central axis direction of the outer casing 10, and is fixed by a lock nut 3. It has become. Further, in the camera head 1, as described later, the round connector 70 is fixed by screwing the flange nut 4 to the rear thread portion 12 </ b> B in the center axis direction of the outer housing 10.
By attaching the cable connector 5 to the round connector 70, it is connected to a camera control unit (not shown) via the cable 6.

The outer casing 10 is formed in a cylindrical shape having an inner diameter substantially equal to the outer diameter of the cylindrical inner case 80, and has an inward flange on an inner peripheral surface thereof at a front end portion in the center axis direction. A part 13 is provided. This outer housing 1
0 is a cylindrical storage portion 14 formed by the inner peripheral surface thereof.
The camera head main body 10 in a state where the portion of the flexible printed wiring board 60 is covered with the inner case 80.
0 is stored.

The inward flange 13 regulates the position of the camera head main body 100 housed in the housing 14 at the front end in the optical axis direction, and has a size including the imaging range of the image sensor 40. Aperture 1 for optical path
It is formed in a ring shape having 5 at the center. And
The inward flange portion 13 has a position regulating surface 13A which is a plane orthogonal to the optical axis. As shown in FIG. 3, the inward flange portion 13 has two notches 1 for regulating the position around the axis in the vertical direction perpendicular to the optical axis.
6A and 16B are provided. Further, the outer casing 10
Is a position regulating surface 17 which forms a plane orthogonal to the optical axis. As shown in FIGS. 2 and 3, two protrusions 17 for position regulation in the direction around the axis are provided at the vertical position on the rear end side in the center axis direction.
A and 17B are provided.

The two projections 17A provided on the outer casing 10 are
17B may have the same shape, but have different sizes in this embodiment. By providing the projections 17A and 17B having different sizes in this manner, it is possible to easily confirm the correspondence between the camera head main body 100 in the normal installation state and the vertical direction.

Here, FIGS. 2 and 3 are exploded perspective views of main parts of the camera head 1. FIG.

The vertical direction perpendicular to the optical axis is defined as
This is a vertical direction in a normal installation state of the camera head body 100. Further, the optical axis of the camera head main body 100 and the central axis of the outer casing 10 coincide with each other.

The optical filter 20 is formed in a rectangular parallelepiped shape having a substantially rectangular entrance surface and an exit surface corresponding to an imaging surface of the image sensor 40 having an aspect ratio of 3: 4 (diagonal 5). ing.

The packing 30 is connected to the outer casing 10.
And a ring portion 31 having an outer diameter slightly smaller than the inner diameter of the ring portion, and four arm portions 32A, 32B, 33A, 33B provided upright at four positions on the upper, lower, left and right sides of the ring portion 31. The ring portion 31 has an optical path opening 34 having a size including the imaging range of the image sensor 40 at the center. The arm portions 32A, 32B provided upright on the ring portion 31 have protrusions 35A having a shape corresponding to the notches 16A, 16B provided on the inward flange portion 13 of the outer casing 10. , 35B are provided. The packing 30 is formed of, for example, silicone rubber.

The optical filter 20 is
By mounting the packing 30, as shown in FIGS. 1 and 3, the outer peripheral portion of the emission surface is brought into contact with the ring portion 31 of the packing 30. Four arm parts 32 of part 31
A, 32B, 33A, and 33B will be in the state where it was grasped.

As shown in FIG. 1, the optical filter 20 is inserted into the accommodating portion 14 of the outer casing 10 with the packing 30 mounted thereon, and the outer peripheral portion of the incident surface thereof is connected to the inward flange portion 13. By contacting the position restricting surface 13A, the position is restricted to a state perpendicular to the optical axis. Further, the arm portions 32A, 3A of the packing 30 are provided.
The notch 1 provided on the inward flange 13 of the outer casing 10 is provided with the protrusions 35A and 35B provided on the notch 1B.
By being fitted into 6A and 16B, the position of the optical axis in the direction around the optical axis is regulated, and it is different from being installed at a predetermined angular position.

Although not shown, the packing 30 is provided with ribs on the outer peripheral surface of each of the arm portions 32A, 32B, 33A and 33B, the ribs being in contact with the inner peripheral surface of the outer casing 10. The optical filter 20 is connected to each of the arm portions 32A, 32B, 33A, 33 in the outer casing 10.
B is to hold it securely.

The image sensor 40 is shown in FIGS.
As shown in the figure, an imaging surface 41 having an aspect ratio of 3: 4 (diagonal 5)
And two side surfaces 42 of the ceramic case 42 orthogonal to each other with respect to the center of the effective imaging region, that is, the optical axis O.
A, 42B and rear surface 42C are defined as reference surfaces. In addition, as shown in FIG. 5, the image sensor 40 has 13 lead wires 43 derived from a position obtained by dividing a circumference around the optical axis O of the rear surface 42C of the ceramic case 42 into 14 parts.

As shown in FIG. 6, the back plate 50 is formed in a disk shape having an outer diameter substantially equal to the inner diameter of the outer casing 10.
Thirteen small holes 51 through which the lead wires 43 are inserted are provided. Each of the small holes 51 is formed in a funnel shape having a conical slope that is expanded toward the insertion side to facilitate insertion of the lead wire 43. The back plate 50 is, as shown in FIG.
The 13 small holes 51 on the surface side facing the back surface 42C of the second 2
The central portion surrounded by is slightly protruded from the peripheral portion.
2 is used as an adhesive surface 52 with the back surface 42C. Further, the back plate 50 is provided with notches 53A and 53B for position regulation in the direction around the axis at two positions in the vertical direction orthogonal to the optical axis at upper and lower positions on the outer periphery.

The two notches 53A and 53B provided on the back plate 50 may have the same shape, but have different sizes in this embodiment. In this way, by changing the size of the notches 53A and 53B, the image sensor 40
Can be easily checked in the normal installation state.

Here, the back plate 50 is formed of a synthetic resin. Since it is inevitable that so-called burrs are generated due to the necessary protruding pins in performing the resin molding, if the entire surface facing the rear surface 42C of the ceramic case 42 is made flat, it is possible to secure the flatness by the burrs. I can no longer do it. Therefore, in the back plate 50, the ceramic case 42
A step D is provided between the central portion and the peripheral portion on the surface facing the back surface 42C of the rim 55, and a burr 55 is formed on the peripheral portion by a protruding pin.
The flatness of the adhesive surface 52 at the protruding central portion is ensured by performing molding such that the above occurs.

In the image sensor 40, the 13 lead wires 43 are connected to the 13
The ceramic case 42 is inserted into the small holes 51 and aligned with the two side surfaces 42A and 42B of the ceramic case 42, that is, the respective reference surfaces.
Of the back plate 50 on the back surface 42C of the
Is adhered. The 13 lead wires 43 of the image sensor 40 are connected to one of the back plates 50.
By being inserted through the three small holes 51, they are held at a predetermined interval.

The flexible printed circuit board 60 is mounted on the first and second rectangular chip component mounting portions 62A and 62B folded in a U-shape with the chip component mounting surface outside. Chip components such as a drive circuit and a preamplifier are mounted, lead wires 43 of the image sensor 40 are connected to first and third soldering portions 65A and 65B, and connection pins 7 of the round connector 70 are connected.
1A and 71B are the second and fourth soldering portions 66A and 66
B.

As shown in FIG. 8 (A), the flexible printed wiring board 60 is formed from a thick film layer continuously provided through a first bent portion 61 made of a thin film layer. Rectangular first and second chip component mounting portions 62
A, 62B and a substantially thick film layer connected to each short side portion of the first chip component mounting portion 62A via second and third bent portions 63A, 64A each formed of a thin film layer. Semicircular first and second soldering portions 65A,
66A and the fourth and fifth bent portions 6 each formed of a thin film layer on each short side portion of the second chip component mounting portion 62B.
It has third and fourth soldering portions 66B, 66B formed of thick film layers, respectively, which are provided continuously via the 3B, 64B. The first and second chip component mounting portions 62A, 62
On B, chip components such as a driving circuit of the image sensor 40 and a preamplifier are mounted.

The flexible printed wiring board 60
Is bent in a U-shape at the first bending portion 61 with the chip component mounting surface facing outward as shown in FIG. 8B, and further, as shown in FIG. The first to fourth soldering portions 65A, 66 are bent at the second to fifth bending portions 63A, 64A, 63B, 64B.
A, 65B and 66B are opened at approximately 90 °.

The first soldering portion 65A is provided with seven through holes 67A through which the lead wires 43 of the image sensor 40 are inserted, and the third soldering portion 6A is provided with seven through holes 67A.
5B is provided with six through holes 67B through which the lead wires 43 of the image sensor 40 are inserted.
The flexible printed wiring board 60 has connection land portions of the lead wires 43 of the image sensor 40 so as to surround the through holes 67A and 67B of the first and third solder portions 65A and 65B, respectively. 68A, 68B
Are provided on the component mounting surface side.

The second and fourth soldering portions 66
A and 66B include the round connector 70 as described later.
Are provided with five through-holes 161A and 161B, respectively, through which connection pins 71A arranged on the circumference of the circular connector 70 are inserted, and connection pins 71B arranged on the boundary of the round connector 70 as described later. Are respectively provided with three through holes 162A and 162B. Each connection pin 71A of the round connector 70 is provided on the flexible printed circuit board 60 so as to surround each of the through holes 161A and 161B of the second and fourth solder portions 66A and 66B. The land portions 163A, 163B are provided on the component mounting surface side, and the first and second chip component mounting portions 62A,
62B of the second and fourth soldering portions 66A, 66B
The connection lands 164A and 164B of the connection pin 71B of the round connector 70 are provided on the component mounting surface side in portions adjacent to the through holes 162A and 162B.

In the flexible printed wiring board 60 having such a structure, since the chip components are mounted on only one side, the workability of the mounting operation is good. In addition, since it is folded back into a U-shape with the chip component mounting surface outside, it is possible to secure the same mounting area as when both sides are mounted, and to reduce the occupied space.

Then, the first and third soldering portions 6 of the flexible printed circuit board 60 having such a structure are formed.
5A and 65B, the thirteen lead wires 43 of the image sensor 40 are connected to the respective through holes 67 as shown in FIG.
A and 67B, and are soldered to the connection land portions 68A and 68B.

The circular connector 70 has connection pins 71A, 71B as shown in FIG.
A cylindrical insulating portion 72 which is press-fitted and penetrated into a predetermined position,
A cylindrical shell 73 into which the insulating portion 72 is fitted.
Consists of

The shell 73 of the round connector 70 is
For example, it is formed of a conductive metal such as brass into a cylindrical shape having an outer diameter substantially equal to the inner diameter of the outer casing 10. On the outer periphery of the shell portion 73, an outward flange portion 74 is provided for position control when the shell portion 73 is mounted on the outer casing 10, and a screw portion 75 is provided on the rear side in the axial direction. . The round connector 70 has the screw 7
The cable connector 5 is detachably screwed through the connector 5.

The outward flange portion 74 provided on the outer periphery of the shell portion 73 regulates the position of the camera head main body 100 housed in the housing portion 14 of the outer casing 10 at the rear end in the optical axis direction. And a position regulating surface 74A that forms a plane orthogonal to the optical axis. The outward flange portion 74 is provided with notches 76A and 76B for position regulation in the direction around the axis at two locations in the vertical direction perpendicular to the axial direction. The cutouts 76A and 76B are provided on a position-regulating projection 1 provided at the rear end of the outer casing 10 in the optical axis direction.
It is formed in a shape corresponding to 7A, 17B.

Further, the shell portion 73 has a position regulating surface 7 which forms a plane orthogonal to the optical axis at the front end in the axial direction.
Notches 77A and 77B are provided at two locations in the vertical direction perpendicular to the optical axis, for regulating the position around the axis. The notches 77A and 77B are formed in the same shape as the notches 53A and 53B provided in the back plate 50.

The circular connector 70 is a circular connector according to the present invention, and as shown in FIG. 11, has a predetermined width passing through the central axis that divides a plane orthogonal to the central axis of the connector body into two parts. Six connecting pins 71 symmetrically arranged on mutually parallel boundary lines L1 and L2 of the linear boundary region
B, and a 16-pin connector including ten connection pins 71A arranged on a circumference around the center axis and other than the boundary region. The protrusion amount H2 of the six connection pins 71B symmetrically arranged on the boundary line.
Is greater than the protrusion amount H1 of the ten connection pins 71A arranged on the circumference.

As shown in FIGS. 12 and 13, the circular connector 70 having such a structure has connection pins 71A and 71B.
Are the second and fourth flexible printed circuit boards 60.
Through holes 161 of the soldered portions 66A and 66B
A, 161B, and through holes 162A, 162B, and each connection land portion 163A, 163B, 164A,
164B.

As described above, the through-holes 161A, 161B, and the through-holes of the second and fourth soldering portions 66A, 66B of the flexible printed wiring board 60 are connected to the connection pins 71A, 71B of the round connector 70. 162A,
162B is inserted into each connection land portion 163A, 163.
B, 164A, and 164B are soldered to the flexible printed circuit board connection device according to the present invention.

In this round connector 70, since the connection pins 71A arranged on the circumference can be soldered from the outside, the connection lands 163A and 163B can be securely soldered even if the interval is relatively small. Can be attached. The connection lands 164 of the first and second chip component mounting portions 62A and 62B to which the six connection pins 71B symmetrically arranged on the boundary line are soldered.
A, 164B are connecting pins 71 arranged on the circumference.
Since the shape can be made relatively large as compared with the connection land portions 163A and 163B to which A is soldered, the work of soldering the connection pin 71B can be easily performed. In addition, the connection lands 164A, 16
By increasing the area of 4B, the connection pins 71
A large current can flow through B. Also,
Six connection pins 71B symmetrically arranged on the boundary line
Are soldered to the connection land portions 164A and 164B to temporarily fix the flexible printed circuit board 60, and then the connection pins 71A arranged on the circumference are connected to the connection land portions 163A and 163B. By soldering, the work of soldering the connection pins 71A can be easily performed, and the workability and reliability of the soldering can be improved. Further, the protrusion amount H2 of the six connection pins 71B symmetrically arranged on the boundary line is larger than the protrusion amount H1 of the ten connection pins 71A arranged on the circumference, so that the connection pin The workability of soldering the 71B can be improved.

Further, the inner case 80 is formed by abutting two semi-cylindrical inner case halves 80A and 80B obtained by dividing a cylindrical shape having both end faces perpendicular to the central axis into two by a plane including the central axis. . The inner case 80 is made of, for example, stainless steel. The inner case 80 has a length corresponding to the flexible printed wiring board 60.

As shown in an exploded perspective view of FIG. 3, each of the inner case halves 80A and 80B constituting the inner case 80 is used for positioning around the central axis of the inner case 80. Projections 81A,
81B, 82A, and 82B are provided on each end face portion.

Each of the projections 81A and 82A provided on the inner case half 80A is
And the notches 53A, 77A provided in the shell portion 73 and the back plate 50. Each of the projections 81B and 82B provided on the inner case half 80B is connected to the round connector 70.
And the notches 53B, 77B provided in the shell portion 73 and the back plate 50.

The inner case 80 having such a structure is described.
The inner case halves 80A and 80B abut each other so as to surround the flexible printed circuit board 60, and the projections 81A and 81B are fitted into the notches 53A and 53B provided on the back plate 50. At the same time, the projections 82A and 82B are fitted into the cutouts 77A and 77B provided in the shell 73 of the round connector 70, so that the image sensor 40 to which the back plate 50 is adhered and the round connector. 70 functions as a connecting cylinder that mechanically connects the connecting member 70 and the connecting member 70.

The camera head body 100 is
The face plate 45 of the image sensor 40 is accommodated in the accommodating portion 14 of the outer housing 10 in a tentatively assembled state in which the ring portion 31 of the packing 30 is fitted. By screwing the flange nut 4 to the base 12B, the flange nut 4 is fixed in a state where the position is regulated as follows.

That is, when the flange nut 4 is screwed to the rear thread portion 12B of the outer casing 10 in the central axis direction,
The round connector 7 is screwed by the flange nut 4.
With 0, the camera head main body 100 is pressed forward in the central axis direction of the outer casing 10.

Thus, the camera head body 100
Optical filter 20 positioned at the head in the optical axis direction of
Means that the outer peripheral portion of the incident surface has the inward flange portion 13
Abuts on the position regulating surface 13A, the position is regulated to a state perpendicular to the optical axis, and the protrusions 35A, 35B provided on the arms 32A, 32B of the packing 30 are connected to the outer casing 10 by Inward flange 13 of
By fitting into the notches 16A and 16B provided in the optical axis, the position of the optical axis in the direction around the axis is regulated, and the optical axis is held at a predetermined installation position with high accuracy.

Further, by pressing forward, the position regulating surface 73A provided at the front end in the central axis direction of the shell portion 73 of the round connector 70 and one end surface of the inner case 80 abut against each other. The inner case 80 is attached to the back plate 50 adhered and fixed to the back surface 42C which is the reference surface of the ceramic case 42 of the image sensor 40.
The other end faces are abutted. Accordingly, in a state where the parallelism between the rear surface 42C, which is the reference surface of the ceramic case 42 of the image sensor 40, and the position regulating surface 73A provided on the shell portion 73 is ensured, the image sensor 40 has an imaging surface side. The position of the optical filter 20 is regulated by being pressed by the light emitting surface of the optical filter 20 via the packing 30.

Further, in the round connector 70, the position regulating surface 74A provided on the outward flange portion 74 of the shell portion 73 abuts on the rear end side position regulating surface 17 of the outer casing 10. Thereby, the parallelism between the position regulating surface 74A provided on the outward flange portion 74 of the shell portion 73 and the position regulating surface 13A provided on the inward flange portion 13 of the outer casing 10 is ensured.

When the respective position regulating surfaces are abutted against each other, the position in the direction around the axis is regulated by the relative engagement between the respective projecting portions and the notch portions.
And the image sensor 40 can be arranged and fixed at a predetermined relative position with high accuracy.

The camera head 1 is, for example, as shown in FIG.
4 to 16 are attached to a holder 200 having a structure as shown in FIG.

As shown in FIG. 14, the holder 200 includes a holder main body 210 and first and second head grips 220 and 230. The first and second head grips 220 and 230 are connected to the holder main body 210. Screw 2
It is configured to be fixed at a predetermined angle by 41 and a nut 242.

The holder main body 210 is shown in FIGS.
As shown in FIG. 5, a mounting board 211 and a support plate 212 bent at a right angle from the mounting board 211 are provided. The support plate 212 is provided with a protrusion 213 formed by half blanking, and an arc-shaped long hole 214 centered on the protrusion 213 is formed in the support plate 212.
13 is provided above.

The first head grip 220
As shown in FIG. 16, a linear fixing portion 22 made of a belt-like stainless steel and extending along the support plate 212 is provided.
1 and a support part 222 bent in a hairpin shape so as to support the bottom of the camera head 1. The fixing portion 221 has round holes 2 at positions corresponding to the projections 213 and the long holes 214 provided on the support plate 212, respectively.
23 and 224 are provided.

Further, the second head grip 230
As shown in FIG. 16, a linear fixing portion 23 made of a belt-like stainless steel and extending along the support plate 212 is provided.
1 and U so as to support the upper part of the camera head 1.
And a support portion 232 curved in a letter shape. The fixing portion 231 has a protrusion 21 provided on the support plate 212.
3 and a circular hole 233 at positions corresponding to the long hole 214, respectively.
234 are provided.

The first and second head grips 22
Reference numerals 0 and 230 are connected to each other at a distal end portion of the support portion 232 and a base end of the support portion 222 via a hinge 235, so that the second head grip 230 can be opened and closed.

In the holder 200 having such a structure, the second head grip 230 is opened, and the camera head 1 is mounted on the support portion 222 of the first head grip 220, and the second head grip 230 is opened. By closing 230, the first and second head grips 220,
The two outward flange portions 11A provided on the outer casing 10 of the camera head 1 by the support portions 222 and 232 of the
11B, the first and second parts are sandwiched in this state.
Fixing parts 221 and 23 of head grips 220 and 230
1 are provided with the circular holes 223 and 233 provided in the support plate 2.
The first and second head grips 220 and 23 are fitted to the protrusions 213 provided on the
0 is temporarily fixed. When performing this temporary fixing, the round hole 223 of the first head grip 220 is inserted into the support plate 212.
The round hole 233 provided in the fixing portion 231 of the second head grip 230 does not reach the protrusion 213 even if the protrusion 213 is fitted. In this state, the support portion 232 of the second head grip 230 is pushed down together with the camera head 1, whereby the support portion 222 of the second head grip 220 bent in the shape of a hairpin is elastically deformed downward. Downward, the round hole 233 of the second head grip 230 can be fitted to the protrusion 213. In this state, when the support portion 232 of the second head grip 230 is stopped from being pushed down together with the camera head 1,
The camera head 1 is sandwiched and restrained by the support portions 222 and 232 of the first and second head grips 220 and 230. In this temporarily fixed state, the fixing portions 221 and 221 of the first and second head grips 220 and 230 are set.
231 and round holes 214 and 234 provided in the mounting board 211 of the holder main body 210.
The camera head 1 is mounted and fixed by inserting the screw 241 into the nut and fixing it with the nut 242.

At this time, the installation angle of the camera head 1 can be adjusted within the range of the elongated hole 214.

The two outward flange portions 11A and 11B provided on the outer casing 10 of the camera head 1 have:
To identify the top and bottom of the camera head 1, that is, the top and bottom, a mark indicating the top, that is, the top, is marked so as to be visible at an upper position in the vertical direction with respect to the optical axis. Since the mark can be marked at two positions, the mark is also used to identify the type of the camera head 1. Specifically, a straight line parallel to the optical axis is used as the mark, and the PAL-type camera head and the NTSC-type camera head write the above-mentioned marks on different outward flange portions 11A and 11B. The model can be identified along with the top and bottom.

[0062]

As described above, in the round connector according to the present invention, each of the linear boundary regions having a predetermined width passing through the central axis, which divides a plane orthogonal to the central axis of the connector body, into two parts. By providing an even number of connection pins symmetrically arranged on a parallel boundary line and a plurality of connection pins arranged on the circumference centered on the central axis and in the boundary area, a small shape is achieved. Even if it is provided, a large number of connection pins are provided, and the work of soldering each connection pin can be easily performed. Further, the projecting amount of the even-numbered connecting pins symmetrically arranged on the boundary line is made larger than the projecting amount of each of the connecting pins arranged on the circumference to improve workability of soldering. Can be.

In the connecting device for a flexible printed circuit board according to the present invention, a linear boundary region having a predetermined width passing through the central axis, which divides a plane orthogonal to the central axis of the connector body, into two parts. Each connection land portion of the first and second chip component mounting portions on the flexible printed circuit board to which an even number of connection pins symmetrically arranged on the parallel boundaries are soldered is formed on a circumference. Since the arranged connection pins can be formed in a relatively large shape as compared with the connection lands to which the connection pins are soldered, the work of soldering the connection pins can be easily performed. Further, by increasing the area of each of the connection lands, a large current can flow through the connection pins.

Therefore, according to the present invention, it is possible to provide a multi-pin round connector which is small in size and can easily perform the work of soldering the connection pins. Further, according to the present invention, it is possible to provide a flexible printed wiring board connection device which can easily solder connection pins of a small round connector.

Therefore, by applying the present invention, the size of the cylindrical camera head can be reduced and the reliability can be improved.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view of a main part of a camera head to which the present invention is applied.

FIG. 2 is an exploded perspective view of the camera head.

FIG. 3 is an exploded perspective view of the camera head in a state where the image sensor and the round connector according to the present invention are connected via a flexible printed circuit board.

FIG. 4 is a front view of the image sensor.

FIG. 5 is a rear view of the image sensor.

FIG. 6 is a front view of a back plate adhered to the back of the image sensor.

FIG. 7 is a vertical sectional side view of the back plate.

FIG. 8 is a perspective view showing an assembled state of the flexible printed wiring board.

FIG. 9 is a rear view showing a connection state between the connection lead wires of the image sensor and the flexible printed circuit board.

FIG. 10 is a partially longitudinal side view of the round connector.

FIG. 11 is a perspective view showing an arrangement state of connection pins of the round connector.

FIG. 12 is a front view showing a connection state between connection pins of the round connector and the flexible printed circuit board.

FIG. 13 is a perspective view showing a connection state between connection pins of the round connector and the flexible printed wiring board.

FIG. 14 is a front view showing a state where the camera head is mounted on a holder.

FIG. 15 is a side view showing a state where the camera head is mounted on a holder.

FIG. 16 is a perspective view of first and second head grips constituting the holder.

[Explanation of symbols]

60 Flexible printed wiring board, 61, 63A, 63
B, 64A, 64B bent portion, 62A, 62B chip component mounting portion, 65A, 65B, 66A, 66B soldering portion, 67A, 67B, 161A, 161B, 162A,
162B through hole, 68A, 68B, 163A,
163B Land, 70 round connector, 71A, 7
1B connection pin, 72 insulating part, 73 shell part

Claims (2)

[Claims] 1. A plane orthogonal to a central axis of a connector body is defined as 2
An even number of connection pins symmetrically arranged on mutually parallel boundary lines of a linear boundary region having a predetermined width passing through the center axis to be divided, and on a circumference centered on the center axis, A plurality of connection pins arranged in a portion of the boundary region, wherein an even number of connection pins arranged symmetrically on the boundary have a larger protrusion amount than a plurality of connection pins arranged on the circumference. A round connector characterized by the following. 2. An even number of connections symmetrically arranged on mutually parallel boundary lines of a linear boundary region having a predetermined width passing through the central axis and dividing a plane orthogonal to the central axis of the connector main body into two. A plurality of connection pins arranged on a circumference centered on the center axis and at the boundary area, and an even number of connection pins symmetrically arranged on the boundary line are provided on the circumference. A round connector having a larger protrusion amount than the plurality of connection pins disposed in the chip component mounting portion, a chip component mounting portion bent in a U-shape with the component mounting surface outside, and a length of the chip component mounting portion. And a soldering portion formed by bending a protruding piece protruding in the direction, and each through hole through which each connection pin of the round connector is inserted is provided in the soldering portion. Multiple contacts arranged on a circle A connection land portion of each connection pin is provided on the soldering portion so as to surround each through hole through which the connection pin is inserted, and each connection land portion of an even number of connection pins symmetrically arranged on the boundary line. Consists of a flexible printed circuit board provided on the component mounting surface, each connection pin of the round connector is inserted into each through hole provided in the soldering portion, and each of the connection pins on the soldering portion is A connection device for a flexible printed wiring board, wherein the connection land portion is soldered to each connection land portion on the component mounting surface.