WO2013073444A1 - Attachment structure for flexible planar wire material, and optical pick-up device - Google Patents

Attachment structure for flexible planar wire material, and optical pick-up device Download PDF

Info

Publication number
WO2013073444A1
WO2013073444A1 PCT/JP2012/078972 JP2012078972W WO2013073444A1 WO 2013073444 A1 WO2013073444 A1 WO 2013073444A1 JP 2012078972 W JP2012078972 W JP 2012078972W WO 2013073444 A1 WO2013073444 A1 WO 2013073444A1
Authority
WO
WIPO (PCT)
Prior art keywords
flexible planar
protrusion
planar wiring
circuit board
housing
Prior art date
Application number
PCT/JP2012/078972
Other languages
French (fr)
Japanese (ja)
Inventor
康文 山岸
Original Assignee
三洋電機株式会社
三洋オプテックデザイン株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三洋電機株式会社, 三洋オプテックデザイン株式会社 filed Critical 三洋電機株式会社
Publication of WO2013073444A1 publication Critical patent/WO2013073444A1/en

Links

Images

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/22—Apparatus or processes for the manufacture of optical heads, e.g. assembly
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372—Lenses
    • G11B7/1376—Collimator lenses

Definitions

  • the present invention relates to a mounting structure for a flexible planar wiring material such as a flexible printed circuit board (FPC: Flexible Printed Circuits) and a flexible flat cable (FFC: Flexible Flat Cable), and an optical pickup device using the same.
  • a flexible planar wiring material such as a flexible printed circuit board (FPC: Flexible Printed Circuits) and a flexible flat cable (FFC: Flexible Flat Cable)
  • FPC Flexible Printed Circuits
  • FFC Flexible Flat Cable
  • the flexible planar wiring member is used, for example, to electrically connect an electrical component and a circuit board.
  • a motor is used to drive an aberration correction lens in the optical axis direction
  • a flexible planar wiring material is used to connect the motor and a circuit board of the optical pickup device.
  • a method of directly connecting the electrode of the flexible planar wiring material and the electrode of the circuit board by soldering is used in addition to the connection by the connector.
  • the flexible planar wiring member is temporarily fixed to the circuit board in order to smoothly advance the soldering operation.
  • This temporary fixing can be performed using, for example, a double-sided tape (see, for example, Patent Document 1).
  • the present invention provides a flexible planar wiring material mounting structure that can easily connect a flexible planar wiring material to a circuit board and can efficiently connect the flexible planar wiring material and the circuit board.
  • An object of the present invention is to provide an optical pickup device used.
  • the 1st aspect of this invention is related with the attachment structure for attaching a flexible plane wiring material to a circuit board.
  • the mounting structure according to this aspect includes a circuit board fixed to a housing and provided with a first electrode on an upper surface, and a second board disposed at an end of the flexible planar wiring member and connected to the first electrode.
  • the width of the first hole in a predetermined direction is smaller than the protrusion so that the protrusion is press-fitted.
  • the first hole and the first electrode are formed when the first hole is press-fitted into the protrusion and the end portion of the flexible planar wiring member is placed on the circuit board.
  • the two electrodes are arranged at positions facing each other.
  • the flexible flat wiring member is temporarily fixed by press-fitting the first hole into the protrusion. Therefore, the trouble of sticking the double-sided tape or the like for temporary fixing can be omitted, and the workability when connecting the flexible planar wiring material is improved. Moreover, since the first electrode and the second electrode face each other by press-fitting the first hole into the protrusion, soldering after temporary fixing can be performed smoothly.
  • the circuit board may be provided with a second hole into which the protrusion is inserted. In this case, after the protrusion is inserted into the second hole, the protrusion is press-fitted into the first hole.
  • the protrusion is for positioning the circuit board with respect to the housing. If it carries out like this, it is not necessary to provide a permite
  • the protrusion has a cylindrical shape.
  • the housing may be provided with a restricting portion for restricting the rotation of the flexible planar wiring member around the protrusion. If it carries out like this, the position of the flexible plane wiring material after press-fit will be optimized.
  • the second electrode with respect to the first electrode is provided.
  • the lifting of the electrode can be suppressed, and soldering can be performed smoothly.
  • the second hole can be easily pressed into the protrusion.
  • the 2nd aspect of this invention is related with the attachment structure for attaching a flexible plane wiring material to a circuit board.
  • the mounting structure according to this aspect includes a circuit board fixed to a housing and provided with a first electrode on an upper surface, and a second board disposed at an end of the flexible planar wiring member and connected to the first electrode.
  • an interval between the boss and the protrusion is set to an interval corresponding to a width of the flexible planar wiring member, the flexible planar wiring member is inserted between the boss and the protrusion, and the end When the portion is placed on the circuit board, the movement of the flexible planar wiring member in the planar direction is restricted so that the first electrode and the second electrode face each other.
  • the first electrode and the second electrode face each other.
  • the first electrode and the second electrode can be easily aligned, and the subsequent soldering can be performed smoothly. Therefore, workability when connecting the flexible planar wiring material to the circuit board is improved.
  • a third aspect of the present invention relates to an attachment structure for attaching a flexible planar wiring material to a circuit board.
  • the mounting structure according to this aspect includes a circuit board fixed to the upper surface of the housing and provided with the first electrode on the upper surface, and a first flexible electrode arranged on the end of the flexible planar wiring member and connected to the first electrode.
  • Two electrodes a long hole provided in the housing, through which the flexible planar wiring member is passed, to guide the flexible planar wiring member to an electrical component installed on the back side of the housing, and the housing
  • the upper surface of the housing is disposed along the long side of the long hole at a position displaced from the long hole toward the circuit board, and is directed from the back side of the housing to the circuit board through the long hole.
  • the flexible planar wiring member When attaching a flexible planar wiring material to a circuit board, it is desirable that the flexible planar wiring material be smoothly routed while protecting the flexible planar wiring material.
  • the flexible planar wiring member is lifted by the base when the flexible planar wiring member is routed from the back side of the housing to the circuit board through the long hole. Is prevented from hitting the corners of the long holes, and the flexible planar wiring material is protected.
  • the corner portion on the long hole side of the upper surface of the base portion is curved or chamfered so as to be inclined toward the long hole side. If it carries out like this, a flexible plane wiring material can be drawn smoothly through a long hole, and workability at the time of connecting a flexible plane wiring material to a circuit board will improve.
  • the 4th aspect of this invention is related with the attachment structure for attaching a flexible plane wiring material to a circuit board.
  • the mounting structure according to this aspect includes a circuit board fixed to the upper surface of the housing and provided with the first electrode on the upper surface, and a first flexible electrode arranged on the end of the flexible planar wiring member and connected to the first electrode.
  • Two electrodes a long hole provided in the housing, through which the flexible planar wiring member is passed, to guide the flexible planar wiring member to an electrical component installed on the back side of the housing, and the housing
  • a base for lifting the flexible planar wiring member so as to be aligned with the height of the upper surface of the circuit board fixed to the upper surface of the housing.
  • the first electrode and the second electrode can be smoothly soldered together with the temporary fixing described above.
  • the end portion of the flexible planar wiring member is aligned with the height of the circuit board, the end portion is prevented from being lifted or inclined with respect to the circuit board, and the first electrode And the second electrode can be soldered smoothly. Therefore, workability when connecting the flexible planar wiring material to the circuit board is improved.
  • the fifth aspect of the present invention relates to an optical pickup device.
  • An optical pickup device converges a flexible planar wiring member mounting structure according to any of the first to fourth aspects, a laser light source, and laser light emitted from the laser light source onto a disk.
  • the motor is connected to the other end of the flexible planar wiring member. According to this aspect, the same effect as that of the first aspect is exhibited.
  • the flexible planar wiring material can be easily connected to the circuit board, and the connection work between the flexible planar wiring material and the circuit board can be performed efficiently.
  • Mounting structure and an optical pickup device using the same can be provided.
  • the present invention is applied to an optical pickup device that irradiates a BD (Blu-ray Disc), a CD (Compact Disc), and a DVD (Digital Versatile Disc) with laser light.
  • BD Blu-ray Disc
  • CD Compact Disc
  • DVD Digital Versatile Disc
  • FIG. 1 shows an optical system of the optical pickup device according to the embodiment.
  • 1A is a top view of the optical system
  • FIG. 1B is an internal perspective view of the peripheral portion of the objective lens actuator viewed from the side
  • FIG. 1C shows the arrangement of laser elements in the semiconductor laser 101.
  • an optical pickup device includes a semiconductor laser 101, a diffraction grating 102, a plate-shaped polarization beam splitter (PBS) 103, a ⁇ / 4 plate 104, a collimator lens 105, a lens.
  • the actuator 106, the raising mirror 107, the objective lens, and the photodetector 110 are provided.
  • the semiconductor laser 101 includes a laser beam with a wavelength of about 400 nm (hereinafter referred to as “BD light”), a laser beam with a wavelength of about 650 nm (hereinafter referred to as “DVD light”), and a laser beam with a wavelength of about 780 nm (hereinafter referred to as “CD light”). Light)) in the same direction.
  • BD light laser beam with a wavelength of about 400 nm
  • DVD light laser beam with a wavelength of about 650 nm
  • CD light laser beam with a wavelength of about 780 nm
  • the semiconductor laser 101 includes laser elements 101a, 101b, and 101c that emit BD light, DVD light, and CD light, respectively, in one CAN.
  • the laser elements 101b and 101c are integrally formed so that the interval between the light emitting points is w2, and the laser element 101a has an interval between the light emitting point and the light emitting point of the laser element 101b as w1 (w1> w2). It is formed as follows.
  • the laser elements 101a, 101b, and 101c are formed so that the light emitting points are aligned on a straight line.
  • the optical system after the semiconductor laser 101 is adjusted so that its optical axis matches the optical axis of the DVD light.
  • the diffraction grating 102 splits only the BD light out of the BD light, DVD light, and CD light emitted from the semiconductor laser 101 into a main beam and two sub beams. DVD light and CD light are also diffracted by the diffraction grating 102, but the intensity of sub-beams of these lights is extremely small.
  • the PBS 103 reflects the laser light incident from the diffraction grating 102 side.
  • the PBS 103 is a thin plate-like parallel flat plate, and a polarizing film is formed on the incident surface thereof.
  • the semiconductor laser 101 is arranged so that the polarization directions of the BD light, DVD light, and CD light are S-polarized with respect to the PBS 103.
  • the ⁇ / 4 plate 104 converts the laser light reflected by the PBS 103 into circularly polarized light, and converts the reflected light from the disk into linearly polarized light that is orthogonal to the polarization direction when traveling toward the disk. As a result, the laser light reflected by the disk passes through the PBS 103 and is guided to the photodetector 110.
  • the collimator lens 105 converts the laser light reflected by the PBS 103 into parallel light.
  • the lens actuator 106 drives the ⁇ / 4 plate 104 and the collimator lens 105 in the optical axis direction of the collimator lens 105.
  • the lens actuator 106 includes a moving member 106a, a shaft 106b, a gear 106c, and a motor 106d.
  • the moving member 106 a holds the ⁇ / 4 plate 104 and the collimator lens 105.
  • the moving member 106 a is supported by the shaft 106 b so as to be movable in the optical axis direction of the collimator lens 105.
  • a gear (not shown) is disposed on the moving member 106a, and this gear meshes with the gear 106c.
  • the gear 106c is connected to the drive shaft of the motor 106d.
  • the rising mirror 107 reflects the laser beam incident through the collimator lens 105 in the direction toward the objective lens 108.
  • the objective lens 108 is designed so that BD light, DVD light, and CD light can be properly converged on the signal surface of the corresponding disk.
  • the objective lens 108 is held by a holder 121, and the holder 121 is driven in a focus direction and a tracking direction by an objective lens actuator 122. By driving the holder 121 in this way, the objective lens 108 is driven in the focus direction and the tracking direction.
  • the reflected light from the disc is converted by the ⁇ / 4 plate 104 into linearly polarized light that becomes P-polarized light with respect to the PBS 103.
  • the reflected light from the disk passes through the PBS 103.
  • the PBS 103 is disposed so as to be inclined by 45 degrees with respect to the optical axes of the BD light, DVD light, and CD light. For this reason, when BD light, DVD light, and CD light are transmitted through the PBS 103 in a converged state, astigmatism is introduced into these lights.
  • the diffractive optical element 109 diffracts BD light, DVD light, and CD light.
  • the diffractive optical element 109 is designed so that the + 1st order diffraction efficiency is high for BD light and the 0th order diffraction efficiency is high for DVD light and CD light.
  • the + 1st order diffracted light of the BD light is bent in a direction approaching the optical axis of the DVD light by the diffractive optical element 109 and is irradiated on the light receiving surface of the photodetector 110 at the irradiation position of the DVD light.
  • the photodetector 110 is provided with a four-divided sensor at a position where the 0th-order diffracted light of DVD light and CD light is irradiated.
  • the main beam of BD light (+ 1st order diffracted light) is diffracted by the diffractive optical element 109 as described above, and is irradiated to the quadrant sensor that receives the DVD light.
  • the photodetector 110 is provided with a four-divided sensor at a position where two sub beams (+ 1st order diffracted light) of BD light are irradiated.
  • the sensor layout of the photodetector 110 is set so that a reproduction RF signal, a focus error signal, and a tracking error signal are generated by the output from each sensor.
  • FIG. 2 is a perspective view of the optical pickup device as viewed from above.
  • FIG. 2 shows the objective lens 108, the holder 121, and the objective lens actuator 122 in the configuration of FIG.
  • Other optical systems are mounted on the back surface of the housing 200.
  • the housing 200 is formed of PPS (polyphenylene sulfide), and a recess for mounting the optical system of FIG. 1A is formed on the back side.
  • PPS polyphenylene sulfide
  • pedestals 201 to 204 on which the circuit board 300 (not shown in FIG. 2; see FIG. 3A) is placed are formed on the upper surface of the housing 200.
  • the heights of the pedestals 201 to 204 are equal to each other.
  • columnar protrusions 205 and 206 protruding upward are formed at positions adjacent to the bases 201 and 202.
  • screw holes 207 and 208 for screwing the circuit board 300 are formed in the bases 203 and 204.
  • the diameter of the top surface 205a of the protrusion 205 is smaller than that of the body portion of the protrusion 205, and an inclined surface 205b is formed so as to connect the top surface 205a and the body portion.
  • the top surface 206a of the protrusion 206 has a diameter smaller than that of the body portion of the protrusion 206, and an inclined surface 206b is formed so as to connect the dot surface 206a and the body portion.
  • a cylindrical boss 209 is formed in the vicinity of the projection 206 of the housing 200, and a base 210 and a protrusion 211 extending in the vertical direction are formed at a position adjacent to the boss 209.
  • the boss 209 is inclined by chamfering the top corner.
  • a screw hole 215 (not shown in FIG. 2; see FIG. 6) is formed inside the boss 209 so as to extend from the back surface of the housing 200 into the boss 209.
  • the motor 106d shown in FIG. 1A is attached to the back surface of the housing 200 through the screw hole 215. That is, the boss 209 is formed so as to protrude from the upper surface of the housing 200 in order to mount the motor 106d on the back surface of the housing 200.
  • the base 210 is formed so as to connect the boss 209 and the protrusion 211.
  • the upper surface of the base 210 is a horizontal plane.
  • the height of the upper surface of the base 210 substantially matches the height of the upper surface of the circuit board 300 when the circuit board 300 is mounted on the bases 201 to 204.
  • inclined surfaces On both sides in the width direction of the pedestal 210, inclined surfaces that are inclined from the upper surface of the pedestal 210 toward the upper surface of the housing 200 are formed.
  • the protrusion 211 is formed so as to face the boss 209.
  • a side surface of the protrusion 211 facing the boss 209 is a plane parallel to the vertical direction, and inclined surfaces inclined in a direction away from the boss 209 are formed on both sides of the side surface.
  • the upper surface of the protrusion 211 has a chamfered corner.
  • the FPC 400 Flexible Printed Circuits
  • the FPC 400 is inserted between the boss 209 and the protrusion 211 and placed on the upper surface of the base 210.
  • the distance between the boss 209 and the protrusion 211 is slightly larger than the width of the FPC 400. Since the upper end of the boss 209 and the protrusion 211 is chamfered, the FPC 400 can be smoothly inserted between the boss 209 and the protrusion 211.
  • a base 212 and a long hole 213 are formed on the upper surface of the housing 200.
  • the base 212 is formed so as to extend in one direction in plan view, and the upper surface is a semi-cylindrical (kamaboko) curved surface.
  • the height of the base part 212 is equal to the height of the base part 210.
  • the long hole 213 is formed along the base portion 212 and penetrates from the upper surface of the housing 200 to the back surface.
  • the longitudinal dimension of the long hole 213 is wider than the width of the end 401 (not shown in FIG. 1; see FIGS. 3B and 7) of the FPC 400.
  • FIG. 3A is a diagram illustrating a configuration of the circuit board 300.
  • the circuit board 301 is made of, for example, a printed board.
  • the circuit board 300 is provided with electrical components and connectors on the top surface.
  • U-shaped cutouts 301 and 302 for screwing are formed in the circuit board 300, and circular holes 303 and 304 into which the protrusions 205 and 206 are inserted are formed.
  • the widths of the notches 301 and 302 are slightly wider than the screw holes 207 and 208 and narrower than the bases 203 and 204. Further, the diameters of the holes 303 and 304 are slightly larger than the diameters of the protrusions 205 and 206.
  • FIGS. 3B and 3C are diagrams showing the configuration of the FPC 400.
  • FIG. 3A is diagrams showing the configuration of the FPC 400.
  • the FPC 400 is made of a flexible material, and wiring is passed through the inside.
  • end portions (connect portions) 401 and 404 are wider than an intermediate portion (wiring portion) 406.
  • an electrode 402 is formed at a position corresponding to the electrode 305 on the substrate 300 side, and a hole 403 into which the protrusion 206 is press-fitted is formed.
  • the hole 403 is formed at a position where no wiring passes.
  • the hole 403 has a shape in which a rectangular corner is rounded.
  • the width of the hole 403 in the long side direction is larger than the diameter of the protrusion 206, and the width of the hole 403 in the short side direction is smaller than the diameter of the protrusion 206 and larger than the diameter of the top surface 206a of the protrusion 206.
  • a terminal hole 405 into which a terminal M (see FIG. 5) of the motor 106d is inserted is formed in the end 404. The electrode is exposed at the periphery of the terminal hole 405.
  • a reinforcing plate 410 is attached to the back surface of the end portion 401 so as to cover substantially the entire area of the end portion 401.
  • a hole 411 is formed in the reinforcing plate 410 at a position corresponding to the hole 403.
  • the hole 411 is formed larger than the hole 403 so that the periphery of the hole 403 can be deformed when the projection 206 is press-fitted into the hole 403.
  • the width of the hole 411 in the short side direction and the long side direction is larger than the diameter of the protrusion 206.
  • a reinforcing plate 420 is also attached to the back surface of the end portion 405 so as to cover substantially the entire area of the end portion 405.
  • a hole 421 is formed in the reinforcing plate 420 at a position corresponding to the terminal hole 405.
  • FIG. 4 is a perspective view of the optical pickup device with the circuit board 300 mounted as viewed from above.
  • the circuit board 300 is placed on the bases 201 to 204 (see FIG. 2) of the housing 200 from above so that the protrusions 205 and 206 are inserted into the holes 303 and 304, respectively. At this time, the projections 205 and 206 are inserted into the holes 303 and 304, whereby the circuit board 300 is positioned with respect to the housing 200. Thereby, the notches 301 and 302 (see FIG. 3A) are aligned with the positions of the screw holes 207 and 208 (see FIG. 2). In this state, the screws 311 and 312 are fastened to the screw holes 207 and 208, and the circuit board 300 is fixed to the housing 200.
  • the lens actuator 106 is mounted on the back surface of the housing 200, and the FPC 400 connected to the motor 106d of the lens actuator 106 is connected to the circuit board 300. At this time, the end portion 401 of the FPC 400 is pulled out from the long hole 213 of the housing 200 to the upper surface of the housing 200.
  • FIG. 5 is a view showing a mounting state of the lens actuator 106 with respect to the housing 200.
  • the lens actuator 106 includes a coil spring 106e, a sandwiching portion 106f, a support plate 106g, and a screw 106h in addition to the configuration shown in FIG.
  • the housing 200 includes a guide plate 214 extending in parallel with the shaft 106b.
  • the coil spring 106e is passed through the shaft 106b.
  • the clamping part 106f is formed in the moving member 106a so as to sandwich the guide plate 214.
  • a gap is provided between the sandwiching portion 106f and the guide plate 214.
  • the support plate 106g supports the gear 106c and the motor 106d.
  • the gear 106c and the motor 106d are fixed to the housing 200 by attaching the support plate 106g to the housing 200 with screws 106h.
  • the end portion 404 of the FPC 400 is connected to the motor 106d. That is, the terminal hole 405 and the terminal M are connected by soldering in a state where the four terminal holes 405 formed in the end portion 404 of the FPC 400 are passed through the four terminals M of the motor 106d. In FIG. 5, illustration of solder is omitted. Then, the end portion 401 of the FPC 400 is passed through the long hole 213, and the FPC 400 is pulled out to the top of the housing 200.
  • FIG. 6 is a diagram in which the moving member 106a, the gear 106c, the motor 106d, the support plate 106g, and the screw 106h are omitted from the state of FIG.
  • the housing 200 is formed with a screw hole 215 for screwing the screw 106h and a recess 216 for accommodating the motor 106d.
  • the screw hole 215 extends from the back surface of the housing 215 to the inside of the boss 209 (see FIG. 4).
  • FIG. 7 is a perspective view of the optical pickup device with the FPC 400 mounted on the circuit board 300 as viewed from above.
  • 8A is a perspective view of the housing 200 viewed from the long hole 213 side before the FPC 400 is pulled out from the long hole 213, and
  • FIG. 8B is a circuit board in which the FPC 400 is pulled out from the long hole 213.
  • FIG. 6 is a perspective view of the state of being placed on 300 viewed from the long hole 213 side.
  • the heights of the base portions 210 and 212 substantially coincide with the height of the upper surface of the circuit board 300. Therefore, as shown in FIG. 8B, the FPC 400 is guided to the circuit board 300 so that the intermediate portion 406 and the end portion 401 are horizontal, that is, parallel to the circuit board 300.
  • the upper surface of the base 212 has a semi-cylindrical shape, the FPC 400 is smoothly bent from the long hole 213 toward the circuit board 300. This also facilitates maintaining the horizontality of the FPC 400.
  • the intermediate portion 406 and the end portion 401 are guided to the circuit board 300 so as to be parallel to the circuit board 300, thereby suppressing the end portion 401 from being lifted or tilted with respect to the circuit board 300. Is done.
  • the long hole 213 has a corner around the opening, but the FPC 400 smoothly bends along the base portion 212, so that the bent portion does not hit the corner of the long hole 213. Therefore, the FPC 400 itself and the intermediate part (wiring part) 406 are protected.
  • the electrode 402 formed on the end portion 401 faces the electrode 305 on the circuit substrate 300 side. become. In this state, the electrode 402 and the electrode 305 are soldered to complete the connection and fixing of the FPC 400 to the circuit board 300.
  • FIGS. 9A and 9B are cross-sectional views taken along line A-A ′ of FIG.
  • FIG. 9A shows a state before the solder is attached
  • FIG. 9B shows a state after the solder is attached
  • FIG. 9C shows the relationship between the hole 403 and the protrusion 206
  • FIG. 9D shows the state after the protrusion 206 is press-fitted into the hole 403.
  • the width D2 of the hole 403 in the short side direction is smaller than the diameter D3 of the protrusion 206.
  • the peripheral edge 401 a of the hole 403 is bent as shown in FIG. 9A, and the peripheral edge 401 a is applied to the side surface of the protrusion 206 by the restoring force of the peripheral edge 401 a. Pressed.
  • the peripheral edge 401 a is deformed along the side surface of the protrusion 206. Therefore, the peripheral edge 401 a is pressed against the side surface of the protrusion 206 in the deformed region.
  • the FPC 400 is temporarily fixed to the printed circuit board 300 by pressing the holes 403 into the protrusions 206. Therefore, the trouble of sticking a double-sided tape or the like for temporary fixing can be saved, and workability when connecting the FPC 400 can be improved. Moreover, since the electrode 305 and the electrode 402 face each other by press-fitting the hole 403 into the protrusion 206, soldering after temporary fixing can be performed smoothly.
  • the protrusion 206 for positioning the circuit board 300 is shared for temporarily fixing the FPC 400, there is no need to separately provide a protrusion for temporarily fixing the FPC 400. Is simplified. In addition, since both the circuit board 300 and the FPC 400 are positioned by the common protrusion 206, the positional relationship between the circuit board 300 and the FPC 400 is properly maintained.
  • the hole 403 can be smoothly press-fitted to the protrusion 206 without strictly aligning the hole 403 and the protrusion 206 at the time of press-fitting. Moreover, since the diameter of the top surface 206a of the protrusion 206 is small and the inclined surface 206b is formed around the top surface 206a, the hole 403 can be easily press-fitted into the protrusion 206.
  • the position of the FPC 400 after press-fitting the hole 403 into the protrusion 206 is appropriate. It can be. Thereby, the electrode 305 and the electrode 402 can be correctly faced, and soldering after temporary fixing can be performed smoothly.
  • the end 401 is prevented from being lifted or inclined with respect to the circuit board 300. . Furthermore, since the FPC 400 is guided to the circuit board 400 so as to be horizontal by the base part 212, the end part 401 is further suppressed from being lifted or inclined with respect to the circuit board 300. Therefore, the electrode 402 is suppressed from being lifted with respect to the electrode 305, and the soldering between the electrode 305 and the electrode 402 can be performed smoothly.
  • the FPC 400 moves in the plane direction. Therefore, the electrode 305 and the electrode 402 face each other, so that the electrode 305 and the electrode 402 can be easily aligned, and soldering can be performed smoothly.
  • the FPC 400 when the FPC 400 is drawn from the back surface side of the housing 200 toward the circuit board 300 through the long hole 213, the FPC 400 is lifted by the base portion 212. The hit of the corner of 400 is suppressed, and the FPC 400 is protected.
  • the upper surface of the base portion 212 has a semi-cylindrical shape (kamaboko shape)
  • the FPC 400 can be smoothly routed through the long hole 213.
  • the upper surface of the base portion 212 does not necessarily have a semi-cylindrical shape, and may be curved or chamfered so that at least a corner portion on the long hole 213 side is inclined toward the long hole 213 side.
  • the hole 403 on the FPC 400 side has a rectangular shape with rounded corners, but the hole 403 may have other shapes as long as it is press-fitted into the protrusion 206.
  • the hole 431 to be press-fitted into the protrusion 206 may have a shape in which two slits 431 b are extended on both sides of the circular hole portion 431.
  • the hole 432 to be press-fitted into the protrusion 206 may have a shape in which two notches 432b are formed around the circular hole 432a.
  • the number of cuts is not limited to two, and at least one cut may be provided. Further, as shown in FIG.
  • the hole 433 press-fitted into the protrusion 206 may be a rectangular with a corner.
  • the width D2 of the holes 431 to 433 is preferably set smaller than the diameter D3 of the protrusion 206 and smaller than the diameter of the top surface 206a of the protrusion 206.
  • the number of slits 431b and notches 432b is not limited to two, and may be one or three or more.
  • the end portion 401 of the FPC 400 is temporarily fixed by the restoring force of the peripheral portion 401a.
  • the constricted portion 206c is provided on the protrusion 206, and FIG. As described above, the peripheral portion 401a may be fitted into the constricted portion 206c. This makes it difficult for the end portion 401 of the FPC 400 to come off from the protrusion 206, and temporary fixing can be performed more reliably.
  • the constricted portion 206c is provided as shown in FIG. 10E, it is desirable that the constricted portion 206c is inclined upward so that the peripheral edge 401a can be easily detached from the protrusion 206 to some extent. In this way, the FPC 400 can be easily detached from the circuit board 300 during repair or the like.
  • the protrusion 206 has a cylindrical shape, but the protrusion 206 may have another shape as long as it is press-fitted into the hole 403.
  • the projection 206 may have a quadrangular prism shape, or as shown in FIG. 11B, the projection 206 may have an octagonal prism shape.
  • the protrusion and hole for temporarily fixing the FPC 400 do not have to be a pair, and the FPC 400 may be temporarily fixed by two or more pairs of protrusions and holes.
  • the FPC 400 may be temporarily fixed by two or more pairs of protrusions and holes.
  • two protrusions 206 and two holes 403 are provided in the housing 200 and the end 401, respectively, and each hole 403 is press-fitted into the corresponding protrusion 206, thereby temporarily fixing the FPC 400. You may do it.
  • the work for temporary fixing becomes somewhat complicated as compared with the above embodiment.
  • the protrusion 206 for positioning the circuit board 300 is shared for temporarily fixing the FPC 400.
  • a protrusion may be separately provided for temporarily fixing the FPC 400.
  • the configuration is complicated accordingly.
  • the positional deviation in the width direction of the FPC 400 is restricted by the boss 209 and the protrusion 211, but for example, by other structures that sandwich the FPC 400 in the width direction, such as a wall and a protrusion, or a boss and a protrusion.
  • the positional deviation in the width direction of the FPC 400 may be regulated.
  • the boss 209 that regulates the position of the FPC 400 is for attaching the motor 106d, but may be for attaching other members.
  • the member (motor 106d) is attached to the back surface side of the housing 200 by the boss 209. However, the boss for attaching the member to the upper surface side of the housing 200 is used to regulate the displacement of the FPC 400. You may share it.
  • the end portion 401 of the FPC 400 is lifted so as to be parallel and at the same height as the upper surface of the circuit board 300 by the single base 210 arranged in the vicinity of the mounting position of the circuit board 300.
  • the number of base parts for realizing such an action is not limited to one, and a plurality of base parts may be provided.
  • the base part 212 arranged along the long hole 213 has the end 401 of the FPC 400 parallel to the upper surface of the circuit board 300 and the same. You may make it exhibit the effect
  • the present invention is applied to the FPC mounting structure in the optical pickup device.
  • the present invention can also be applied to the FPC mounting structure in devices other than the optical pickup device.
  • the present invention is not limited to the FPC, and can also be applied to an attachment structure for attaching another flexible planar wiring material such as FFC (Flexible Flat Cable) to the circuit board.
  • FFC Flexible Flat Cable

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)

Abstract

[Problem] To provide an attachment structure for a flexible planar wire material, wherein it is possible to easily connect the flexible planar wire material to a circuit board and to efficiently perform the work to connect the flexible planar wire material to the circuit board. Also to provide an optical pick-up device using said attachment structure. [Solution] A protrusion (205) is formed on the top surface of a housing (200), and the protrusion (205) is inserted into a hole (304) on a circuit board (300) and is pressed fitted into a hole (403) on an FPC (400). The edge (401) of the FPC (400) is temporarily secured as a consequence of the protrusion (205) being press fitted into hole (403). In said state, an electrode (402) arranged on the edge (401) of the FPC (400) and an electrode (305) disposed on the side of the circuit board (300) are soldered. As a consequence, the FPC (400) becomes connected to the circuit board (300).

Description

フレキシブル平面配線材の取付構造および光ピックアップ装置Flexible planar wiring material mounting structure and optical pickup device
　本発明は、フレキシブルプリント基板（FPC：Flexible Printed Circuits）やフレキシブルフラットケーブル（FFC：Flexible Flat Cable）等のフレキシブル平面配線材の取付構造およびそれを用いた光ピックアップ装置に関する。 The present invention relates to a mounting structure for a flexible planar wiring material such as a flexible printed circuit board (FPC: Flexible Printed Circuits) and a flexible flat cable (FFC: Flexible Flat Cable), and an optical pickup device using the same.
　従来、フレキシブル平面配線材が種々の装置において用いられている。フレキシブル平面配線材は、たとえば、電気部品と回路基板とを電気的に接続するために用いられる。たとえば、光ピックアップ装置では、収差補正用のレンズを光軸方向に駆動するためにモータが用いられ、このモータと、光ピックアップ装置の回路基板とを接続するためにフレキシブル平面配線材が用いられる。 Conventionally, flexible flat wiring materials have been used in various devices. The flexible planar wiring member is used, for example, to electrically connect an electrical component and a circuit board. For example, in an optical pickup device, a motor is used to drive an aberration correction lens in the optical axis direction, and a flexible planar wiring material is used to connect the motor and a circuit board of the optical pickup device.
　フレキシブル平面配線材の回路基板に対する接続は、コネクタによる接続の他、半田により、フレキシブル平面配線材の電極と回路基板の電極とを直接接続する方法が用いられる。この場合、半田付け作業を円滑に進めるために、フレキシブル平面配線材が回路基板に仮止めされる。この仮止めは、たとえば、両面テープを用いて行われ得る（たとえば、特許文献１参照）。 For the connection of the flexible planar wiring material to the circuit board, a method of directly connecting the electrode of the flexible planar wiring material and the electrode of the circuit board by soldering is used in addition to the connection by the connector. In this case, the flexible planar wiring member is temporarily fixed to the circuit board in order to smoothly advance the soldering operation. This temporary fixing can be performed using, for example, a double-sided tape (see, for example, Patent Document 1).
特開２０１０－１０３２８１号公報JP 2010-103281 A
　しかしながら、上記の方法によれば、両面テープを貼り付けるといった煩雑な作業が必要となり、作業効率が良好ではない。また、装置の修理等においてフレキシブル平面配線材を回路基板から取り外すと、再度、両面テープを貼り付けなければならない場合もあり、ここでも作業性の低下を招く。 However, according to the above method, a complicated operation such as attaching a double-sided tape is required, and the work efficiency is not good. In addition, when the flexible planar wiring member is removed from the circuit board in repairing the apparatus or the like, it may be necessary to apply the double-sided tape again.
　本発明は、フレキシブル平面配線材を回路基板に簡便に接続することができ、フレキシブル平面配線材と回路基板との接続作業を効率的に行うことが可能なフレキシブル平面配線材の取付構造およびそれを用いた光ピックアップ装置を提供することを目的とする。 The present invention provides a flexible planar wiring material mounting structure that can easily connect a flexible planar wiring material to a circuit board and can efficiently connect the flexible planar wiring material and the circuit board. An object of the present invention is to provide an optical pickup device used.
　本発明の第１の態様は、フレキシブル平面配線材を回路基板に取り付けるための取付構造に関する。本態様に係る取付構造は、ハウジングに固定され、上面に第１の電極が設けられた回路基板と、フレキシブル平面配線材の端部に配置され、前記第１の電極に接続される第２の電極と、前記フレキシブル平面配線材の前記端部に設けられ、前記ハウジングから突出する突起が圧入される第１の孔と、を備える。ここで、前記第１の孔は、前記突起が圧入されるよう、前記突起よりも所定方向の幅が小さくなっている。また、前記第１の孔は、この第１の孔が前記突起に圧入されて前記フレキシブル平面配線材の前記端部が前記回路基板上に載置されると、前記第１の電極と前記第２の電極が互いに向き合うような位置に配置されている。 1st aspect of this invention is related with the attachment structure for attaching a flexible plane wiring material to a circuit board. The mounting structure according to this aspect includes a circuit board fixed to a housing and provided with a first electrode on an upper surface, and a second board disposed at an end of the flexible planar wiring member and connected to the first electrode. An electrode, and a first hole provided at the end of the flexible planar wiring member and into which a protrusion protruding from the housing is press-fitted. Here, the width of the first hole in a predetermined direction is smaller than the protrusion so that the protrusion is press-fitted. In addition, the first hole and the first electrode are formed when the first hole is press-fitted into the protrusion and the end portion of the flexible planar wiring member is placed on the circuit board. The two electrodes are arranged at positions facing each other.
　本態様によれば、第１の孔が突起に圧入されることにより、フレキシブル平面配線材が仮止めされる。よって、仮止めのために両面テープ等を貼り付ける手間を省略でき、フレキシブル平面配線材を接続する際の作業性が向上する。また、第１の孔を突起に圧入することにより、第１の電極と第２の電極が互いに向き合うため、仮止め後の半田付けを円滑に行うことができる。 According to this aspect, the flexible flat wiring member is temporarily fixed by press-fitting the first hole into the protrusion. Therefore, the trouble of sticking the double-sided tape or the like for temporary fixing can be omitted, and the workability when connecting the flexible planar wiring material is improved. Moreover, since the first electrode and the second electrode face each other by press-fitting the first hole into the protrusion, soldering after temporary fixing can be performed smoothly.
　上記構成において、回路基板には、前記突起が挿入される第２の孔が設けられ得る。この場合、前記突起がこの第２の孔に挿入された後に、前記突起が前記第１の孔に圧入される。 In the above configuration, the circuit board may be provided with a second hole into which the protrusion is inserted. In this case, after the protrusion is inserted into the second hole, the protrusion is press-fitted into the first hole.
　また、この場合、前記突起は、回路基板をハウジングに対して位置決めするためのものであるのが望ましい。こうすると、フレキシブル平面配線材の仮止めのために、別途、突起を設ける必要がなく、構成の簡素化が図られる。また、共通の突起により回路基板とフレキシブル平面配線材の両方が位置決めされるため、回路基板とフレキシブル平面配線材との間の位置関係が適正に保たれる。 In this case, it is preferable that the protrusion is for positioning the circuit board with respect to the housing. If it carries out like this, it is not necessary to provide a processus | protrusion separately for the temporary fixing of a flexible planar wiring material, and simplification of a structure is achieved. In addition, since both the circuit board and the flexible planar wiring member are positioned by the common protrusion, the positional relationship between the circuit board and the flexible planar wiring member is appropriately maintained.
　また、前記突起は、円柱形状であるのが望ましい。こうすると、圧入の際に、第２の孔の向きと突起の向きとを厳格に位置合わせする必要がないため、第２の孔を突起に円滑に圧入できる。この場合、ハウジングには、突起を中心としたフレキシブル平面配線材の回転を規制するための規制部を設けると良い。こうすると、圧入後のフレキシブル平面配線材の位置が適正化される。 Further, it is desirable that the protrusion has a cylindrical shape. In this case, since it is not necessary to strictly align the direction of the second hole and the direction of the protrusion at the time of press-fitting, the second hole can be smoothly pressed into the protrusion. In this case, the housing may be provided with a restricting portion for restricting the rotation of the flexible planar wiring member around the protrusion. If it carries out like this, the position of the flexible plane wiring material after press-fit will be optimized.
　なお、突部として、前記フレキシブル平面配線材の他端に接続される電気部品を前記ハウジングの裏面にネジ留めするためのボスが用いられると、別途突部を設ける必要がないため、構成の簡素化が図られる。 In addition, if a boss for screwing an electrical component connected to the other end of the flexible planar wiring member is used as a protrusion on the back surface of the housing, it is not necessary to provide a separate protrusion, so that the configuration is simple. Is achieved.
　また、フレキシブル平面配線材が載置され、フレキシブル平面配線材の高さを前記回路基板の高さに揃えるための台部が、ハウジングの上面に配されると、第１の電極に対する第２の電極の浮き上がりを抑制でき、半田付けを円滑に行うことができる。 In addition, when the flexible planar wiring member is placed and a base portion for aligning the height of the flexible planar wiring member with the height of the circuit board is disposed on the upper surface of the housing, the second electrode with respect to the first electrode is provided. The lifting of the electrode can be suppressed, and soldering can be performed smoothly.
　また、突起の天面の幅が第２の孔よりも小さくなるように、突起の端部に傾斜面を形成すると、第２の孔を突起に圧入し易くなる。 Also, if the inclined surface is formed at the end of the protrusion so that the width of the top surface of the protrusion is smaller than that of the second hole, the second hole can be easily pressed into the protrusion.
　本発明の第２の態様は、フレキシブル平面配線材を回路基板に取り付けるための取付構造に関する。本態様に係る取付構造は、ハウジングに固定され、上面に第１の電極が設けられた回路基板と、フレキシブル平面配線材の端部に配置され、前記第１の電極に接続される第２の電極と、前記ハウジングに配置され、前記ハウジングに部品を設置するためのボスと、前記ハウジングに配置され、前記ボスに対向する突部と、を備える。ここで、前記ボスと前記突部の間隔が、前記フレキシブル平面配線材の幅に対応する間隔に設定され、前記フレキシブル平面配線材を前記ボスと前記突部との間に挿入して、前記端部が前記
回路基板に載置されると、前記第１の電極と前記第２の電極が互いに向き合うように、前記フレキシブル平面配線材の平面方向の移動が規制される。 The 2nd aspect of this invention is related with the attachment structure for attaching a flexible plane wiring material to a circuit board. The mounting structure according to this aspect includes a circuit board fixed to a housing and provided with a first electrode on an upper surface, and a second board disposed at an end of the flexible planar wiring member and connected to the first electrode. An electrode, a boss disposed in the housing and for mounting a part on the housing, and a protrusion disposed in the housing and facing the boss. Here, an interval between the boss and the protrusion is set to an interval corresponding to a width of the flexible planar wiring member, the flexible planar wiring member is inserted between the boss and the protrusion, and the end When the portion is placed on the circuit board, the movement of the flexible planar wiring member in the planar direction is restricted so that the first electrode and the second electrode face each other.
　フレキシブル平面配線材を回路基板に取り付ける場合には、上記の仮止めとともに、第１の電極と第２の電極の位置合わせにも手間が掛かる。第２の態様によれば、フレキシブル平面配線材をボスと突部との間に挿入して、端部が回路基板に載置されると、第１の電極と第２の電極が互いに向き合うように、フレキシブル平面配線材の平面方向の移動が規制されるため、第１の電極と第２の電極の位置合わせを容易に行うことができ、その後の半田付けを円滑に行うことができる。よって、フレキシブル平面配線材を回路基板に接続する際の作業性が向上する。 When attaching a flexible planar wiring material to a circuit board, it takes time to align the first electrode and the second electrode together with the temporary fixing described above. According to the second aspect, when the flexible planar wiring member is inserted between the boss and the protrusion and the end portion is placed on the circuit board, the first electrode and the second electrode face each other. In addition, since the movement of the flexible planar wiring member in the planar direction is restricted, the first electrode and the second electrode can be easily aligned, and the subsequent soldering can be performed smoothly. Therefore, workability when connecting the flexible planar wiring material to the circuit board is improved.
　本発明の第３の態様は、フレキシブル平面配線材を回路基板に取り付けるための取付構造に関する。本態様に係る取付構造は、ハウジングの上面に固定され、上面に第１の電極が設けられた回路基板と、フレキシブル平面配線材の端部に配置され、前記第１の電極に接続される第２の電極と、前記ハウジングに設けられ、前記フレキシブル平面配線材が通されることにより、前記フレキシブル平面配線材を、前記ハウジングの裏面側に設置される電気部品へと導く長孔と、前記ハウジングの上面の、前記長孔から前記回路基板側に変位した位置に、前記長孔の長辺に沿うように設けられ、前記ハウジングの裏面側から前記長孔を通って前記回路基板へと向かう前記フレキシブル平面配線材を、前記長孔の前記回路基板側の角から離れるように持ち上げる台部と、を有する。 A third aspect of the present invention relates to an attachment structure for attaching a flexible planar wiring material to a circuit board. The mounting structure according to this aspect includes a circuit board fixed to the upper surface of the housing and provided with the first electrode on the upper surface, and a first flexible electrode arranged on the end of the flexible planar wiring member and connected to the first electrode. Two electrodes, a long hole provided in the housing, through which the flexible planar wiring member is passed, to guide the flexible planar wiring member to an electrical component installed on the back side of the housing, and the housing The upper surface of the housing is disposed along the long side of the long hole at a position displaced from the long hole toward the circuit board, and is directed from the back side of the housing to the circuit board through the long hole. And a base for lifting the flexible planar wiring member away from the corner of the elongated hole on the circuit board side.
　フレキシブル平面配線材を回路基板に取り付ける場合には、フレキシブル平面配線材を保護しつつ円滑に引き回せるのが望ましい。第３の態様によれば、ハウジングの裏面側から長孔を通って回路基板へと向かうようにフレキシブル平面配線材を引き回す際に、台部によってフレキシブル平面配線材が持ち上げられるため、フレキシブル平面配線材が長孔の角に当ることが抑制され、フレキシブル平面配線材が保護される。なお、台部上面の長孔側の角部分は、長孔側に傾斜するように湾曲または面取りされているのが望ましい。こうすると、長孔を通してフレキシブル平面配線材を滑らかに引き回すことができ、フレキシブル平面配線材を回路基板に接続する際の作業性が向上する。 When attaching a flexible planar wiring material to a circuit board, it is desirable that the flexible planar wiring material be smoothly routed while protecting the flexible planar wiring material. According to the third aspect, the flexible planar wiring member is lifted by the base when the flexible planar wiring member is routed from the back side of the housing to the circuit board through the long hole. Is prevented from hitting the corners of the long holes, and the flexible planar wiring material is protected. In addition, it is desirable that the corner portion on the long hole side of the upper surface of the base portion is curved or chamfered so as to be inclined toward the long hole side. If it carries out like this, a flexible plane wiring material can be drawn smoothly through a long hole, and workability at the time of connecting a flexible plane wiring material to a circuit board will improve.
　本発明の第４の態様は、フレキシブル平面配線材を回路基板に取り付けるための取付構造に関する。本態様に係る取付構造は、ハウジングの上面に固定され、上面に第１の電極が設けられた回路基板と、フレキシブル平面配線材の端部に配置され、前記第１の電極に接続される第２の電極と、前記ハウジングに設けられ、前記フレキシブル平面配線材が通されることにより、前記フレキシブル平面配線材を、前記ハウジングの裏面側に設置される電気部品へと導く長孔と、前記ハウジングの上面の、前記長孔から前記回路基板へと向かう径路上に設けられ、前記ハウジングの裏面側から前記長孔を通って前記回路基板へと向かう前記フレキシブル平面配線材の前記端部の高さを、前記ハウジングの上面に固定された前記回路基板の上面の高さに揃えるよう、前記フレキシブル平面配線材を持ち上げる台部と、を有する。 4th aspect of this invention is related with the attachment structure for attaching a flexible plane wiring material to a circuit board. The mounting structure according to this aspect includes a circuit board fixed to the upper surface of the housing and provided with the first electrode on the upper surface, and a first flexible electrode arranged on the end of the flexible planar wiring member and connected to the first electrode. Two electrodes, a long hole provided in the housing, through which the flexible planar wiring member is passed, to guide the flexible planar wiring member to an electrical component installed on the back side of the housing, and the housing The height of the end portion of the flexible planar wiring member that is provided on the path from the long hole to the circuit board on the upper surface of the housing and that passes from the back surface side of the housing to the circuit board through the long hole And a base for lifting the flexible planar wiring member so as to be aligned with the height of the upper surface of the circuit board fixed to the upper surface of the housing.
　フレキシブル平面配線材を回路基板に取り付ける場合には、上記の仮止めとともに、第１の電極と第２の電極の半田付けを円滑に行えるのが望ましい。第４の態様によれば、フレキシブル平面配線材の端部の高さが回路基板の高さに揃えられるため、端部が回路基板に対して浮き上がることや傾くことが抑制され、第１の電極と第２の電極とを円滑に半田付けすることができる。よって、フレキシブル平面配線材を回路基板に接続する際の作業性が向上する。 When attaching a flexible planar wiring material to a circuit board, it is desirable that the first electrode and the second electrode can be smoothly soldered together with the temporary fixing described above. According to the fourth aspect, since the height of the end portion of the flexible planar wiring member is aligned with the height of the circuit board, the end portion is prevented from being lifted or inclined with respect to the circuit board, and the first electrode And the second electrode can be soldered smoothly. Therefore, workability when connecting the flexible planar wiring material to the circuit board is improved.
　本発明の第５の態様は光ピックアップ装置に関する。本態様に係る光ピックアップ装置は、上記第１ないし第４の態様の何れかに係るフレキシブル平面配線材の取付構造と、レーザ光源と、前記レーザ光源から出射されたレーザ光をディスク上に収束させる対物レンズと、前記レーザ光源から出射されたレーザ光の収差を補正するためのレンズを光軸方向に駆動するためのレンズアクチュエータと、前記レンズアクチュエータを駆動するモータと、を備える。前記フレキシブル平面配線材の他端に前記モータが接続される。この態様によれば、上記第１の態様と同様の効果が奏される。 The fifth aspect of the present invention relates to an optical pickup device. An optical pickup device according to this aspect converges a flexible planar wiring member mounting structure according to any of the first to fourth aspects, a laser light source, and laser light emitted from the laser light source onto a disk. An objective lens; a lens actuator for driving a lens for correcting aberration of laser light emitted from the laser light source in an optical axis direction; and a motor for driving the lens actuator. The motor is connected to the other end of the flexible planar wiring member. According to this aspect, the same effect as that of the first aspect is exhibited.
　以上のとおり、本発明によれば、フレキシブル平面配線材を回路基板に簡便に接続することができ、フレキシブル平面配線材と回路基板との接続作業を効率的に行うことが可能なフレキシブル平面配線材の取付構造およびそれを用いた光ピックアップ装置を提供することができる。 As described above, according to the present invention, the flexible planar wiring material can be easily connected to the circuit board, and the connection work between the flexible planar wiring material and the circuit board can be performed efficiently. Mounting structure and an optical pickup device using the same can be provided.
　本発明の特徴は、以下に示す実施の形態により更に明らかとなろう。ただし、以下の実施の形態は、あくまでも本発明の一つの実施形態であって、本発明ないし各構成要件の用語の意義は、以下の実施の形態により何ら制限されるものではない。 The characteristics of the present invention will be further clarified by the following embodiments. However, the following embodiment is merely one embodiment of the present invention, and the meaning of the term of the present invention or each constituent element is not limited at all by the following embodiment.
実施の形態に係る光ピックアップ装置の光学系を示す図である。It is a figure which shows the optical system of the optical pick-up apparatus which concerns on embodiment. 実施の形態に係る光ピックアップ装置の構成を示す図である。It is a figure which shows the structure of the optical pick-up apparatus which concerns on embodiment. 実施の形態に係る回路基板とＦＰＣの構成を示す図である。It is a figure which shows the structure of the circuit board and FPC which concern on embodiment. 実施の形態に係る光ピックアップ装置の構成を示す図である。It is a figure which shows the structure of the optical pick-up apparatus which concerns on embodiment. 実施の形態に係るモータ付近の構成を示す図である。It is a figure which shows the structure of the motor vicinity which concerns on embodiment. 実施の形態に係るモータ付近の構成を示す図である。It is a figure which shows the structure of the motor vicinity which concerns on embodiment. 実施の形態に係る光ピックアップ装置の構成を示す図である。It is a figure which shows the structure of the optical pick-up apparatus which concerns on embodiment. 実施の形態に係る回路基板とＦＰＣとの接続位置付近の構成を示す図である。It is a figure which shows the structure of the connection position vicinity of the circuit board and FPC which concern on embodiment. 実施の形態に係るＦＰＣの取付け状態を説明する図である。It is a figure explaining the attachment state of FPC which concerns on embodiment. 実施の形態の変更例にＦＰＣの取付構造を説明する図である。It is a figure explaining the attachment structure of FPC in the example of a change of embodiment. 実施の形態の変更例にＦＰＣの取付構造を説明する図である。It is a figure explaining the attachment structure of FPC in the example of a change of embodiment.
　 本実施の形態は、ＢＤ（ブルーレイディスク）、ＣＤ（Compact Disc）およびＤＶＤ（Digital Versatile Disc）にレーザ光を照射する光ピックアップ装置に本発明を適用したものである。 In the present embodiment, the present invention is applied to an optical pickup device that irradiates a BD (Blu-ray Disc), a CD (Compact Disc), and a DVD (Digital Versatile Disc) with laser light.
　図１に、実施の形態に係る光ピックアップ装置の光学系を示す。図１（ａ）は光学系の上面図、図１（ｂ）は対物レンズアクチュエータ周辺部分を側面側から見た内部透視図、図１（ｃ）は半導体レーザ１０１におけるレーザ素子の配置状態を示す図である。 FIG. 1 shows an optical system of the optical pickup device according to the embodiment. 1A is a top view of the optical system, FIG. 1B is an internal perspective view of the peripheral portion of the objective lens actuator viewed from the side, and FIG. 1C shows the arrangement of laser elements in the semiconductor laser 101. FIG.
　図１（ａ）を参照して、光ピックアップ装置は、半導体レーザ１０１と、回折格子１０２と、平板状の偏光ビームスプリッタ（ＰＢＳ）１０３と、λ／４板１０４と、コリメータレンズ１０５と、レンズアクチュエータ１０６と、立ち上げミラー１０７と、対物レンと、光検出器１１０を備える。 Referring to FIG. 1A, an optical pickup device includes a semiconductor laser 101, a diffraction grating 102, a plate-shaped polarization beam splitter (PBS) 103, a λ / 4 plate 104, a collimator lens 105, a lens. The actuator 106, the raising mirror 107, the objective lens, and the photodetector 110 are provided.
　半導体レーザ１０１は、波長４００ｎｍ程度のレーザ光（以下、「ＢＤ光」という）と、波長６５０ｎｍ程度のレーザ光（以下、「ＤＶＤ光」という）と、波長７８０ｎｍ程度のレーザ光（以下、「ＣＤ光」という）を同一方向に出射する。 The semiconductor laser 101 includes a laser beam with a wavelength of about 400 nm (hereinafter referred to as “BD light”), a laser beam with a wavelength of about 650 nm (hereinafter referred to as “DVD light”), and a laser beam with a wavelength of about 780 nm (hereinafter referred to as “CD light”). Light)) in the same direction.
　図１（ｂ）に示すように、半導体レーザ１０１は、一つのＣＡＮ内に、ＢＤ光、ＤＶＤ光、ＣＤ光をそれぞれ出射するレーザ素子１０１ａ、１０１ｂ、１０１ｃを備える。レーザ素子１０１ｂ、１０１ｃは、発光点の間隔がｗ２となるように一体的に形成され、レーザ素子１０１ａは、その発光点とレーザ素子１０１ｂの発光点との間隔がｗ１（ｗ１＞ｗ２）となるように形成されている。レーザ素子１０１ａ、１０１ｂ、１０１ｃは、各発光点が一直線上に並ぶように形成されている。半導体レーザ１０１以降の光学系は、その光軸がＤＶＤ光の光軸に整合するように調整されている。 As shown in FIG. 1B, the semiconductor laser 101 includes laser elements 101a, 101b, and 101c that emit BD light, DVD light, and CD light, respectively, in one CAN. The laser elements 101b and 101c are integrally formed so that the interval between the light emitting points is w2, and the laser element 101a has an interval between the light emitting point and the light emitting point of the laser element 101b as w1 (w1> w2). It is formed as follows. The laser elements 101a, 101b, and 101c are formed so that the light emitting points are aligned on a straight line. The optical system after the semiconductor laser 101 is adjusted so that its optical axis matches the optical axis of the DVD light.
　回折格子１０２は、半導体レーザ１０１から出射されたＢＤ光、ＤＶＤ光、ＣＤ光のうちＢＤ光のみをメインビームと２つのサブビームに分割する。ＤＶＤ光とＣＤ光も回折格子１０２による回折作用を受けるが、これら光のサブビームの強度は、極めて小さくなっている。 The diffraction grating 102 splits only the BD light out of the BD light, DVD light, and CD light emitted from the semiconductor laser 101 into a main beam and two sub beams. DVD light and CD light are also diffracted by the diffraction grating 102, but the intensity of sub-beams of these lights is extremely small.
　ＰＢＳ１０３は、回折格子１０２側から入射されたレーザ光を反射する。ＰＢＳ１０３は、薄板状の平行平板となっており、その入射面に、偏光膜が形成されている。半導体レーザ１０１は、ＢＤ光、ＤＶＤ光、ＣＤ光の偏光方向がＰＢＳ１０３に対してＳ偏光となるように配置されている。 The PBS 103 reflects the laser light incident from the diffraction grating 102 side. The PBS 103 is a thin plate-like parallel flat plate, and a polarizing film is formed on the incident surface thereof. The semiconductor laser 101 is arranged so that the polarization directions of the BD light, DVD light, and CD light are S-polarized with respect to the PBS 103.
　λ／４板１０４は、ＰＢＳ１０３によって反射されたレーザ光を円偏光に変換するとともに、ディスクからの反射光を、ディスクへ向かうときの偏光方向に直交する直線偏光に変換する。これにより、ディスクによって反射されたレーザ光はＰＢＳ１０３を透過して光検出器１１０へと導かれる。 The λ / 4 plate 104 converts the laser light reflected by the PBS 103 into circularly polarized light, and converts the reflected light from the disk into linearly polarized light that is orthogonal to the polarization direction when traveling toward the disk. As a result, the laser light reflected by the disk passes through the PBS 103 and is guided to the photodetector 110.
　コリメータレンズ１０５は、ＰＢＳ１０３によって反射されたレーザ光を平行光に変換する。レンズアクチュエータ１０６は、λ／４板１０４とコリメータレンズ１０５を、コリメータレンズ１０５の光軸方向に駆動する。 The collimator lens 105 converts the laser light reflected by the PBS 103 into parallel light. The lens actuator 106 drives the λ / 4 plate 104 and the collimator lens 105 in the optical axis direction of the collimator lens 105.
　レンズアクチュエータ１０６は、移動部材１０６ａと、シャフト１０６ｂと、ギア１０６ｃと、モータ１０６ｄを備える。移動部材１０６ａは、λ／４板１０４とコリメータレンズ１０５を保持している。移動部材１０６ａは、コリメータレンズ１０５の光軸方向に移動可能にシャフト１０６ｂに支持されている。また、移動部材１０６ａにはギア（図示せず）が配され、このギアが、ギア１０６ｃに噛み合っている。ギア１０６ｃは、モータ１０６ｄの駆動軸に連結されている。モータ１０６ｄが駆動されることにより、移動部材１０６ａに保持されたコリメータレンズ１０５がλ／４板１０４とともに移動する。こうして、コリメータレンズ１０５が制御信号に応じて移動されることにより、レーザ光に生じる収差が補正される。 The lens actuator 106 includes a moving member 106a, a shaft 106b, a gear 106c, and a motor 106d. The moving member 106 a holds the λ / 4 plate 104 and the collimator lens 105. The moving member 106 a is supported by the shaft 106 b so as to be movable in the optical axis direction of the collimator lens 105. Further, a gear (not shown) is disposed on the moving member 106a, and this gear meshes with the gear 106c. The gear 106c is connected to the drive shaft of the motor 106d. When the motor 106 d is driven, the collimator lens 105 held by the moving member 106 a moves together with the λ / 4 plate 104. Thus, the aberration generated in the laser light is corrected by moving the collimator lens 105 according to the control signal.
　立ち上げミラー１０７は、コリメータレンズ１０５を介して入射されたレーザ光を対物レンズ１０８に向かう方向に反射する。 The rising mirror 107 reflects the laser beam incident through the collimator lens 105 in the direction toward the objective lens 108.
　対物レンズ１０８は、ＢＤ光、ＤＶＤ光、ＣＤ光を対応するディスクの信号面上に適正に収束できるよう設計されている。対物レンズ１０８は、ホルダ１２１に保持され、ホルダ１２１は、対物レンズアクチュエータ１２２によって、フォーカス方向およびトラッキング方向に駆動される。このようにホルダ１２１が駆動されることにより、対物レンズ１０８が、フォーカス方向およびトラッキング方向に駆動される。 The objective lens 108 is designed so that BD light, DVD light, and CD light can be properly converged on the signal surface of the corresponding disk. The objective lens 108 is held by a holder 121, and the holder 121 is driven in a focus direction and a tracking direction by an objective lens actuator 122. By driving the holder 121 in this way, the objective lens 108 is driven in the focus direction and the tracking direction.
　ディスクからの反射光は、λ／４板１０４によりＰＢＳ１０３に対してＰ偏光となる直線偏光に変換される。これにより、ディスクからの反射光は、ＰＢＳ１０３を透過する。ＰＢＳ１０３は、ＢＤ光、ＤＶＤ光、ＣＤ光の光軸に対して４５度傾くように配置されている。このため、ＢＤ光、ＤＶＤ光、ＣＤ光が収束状態でＰＢＳ１０３を透過すると、これらの光に非点収差が導入される。 The reflected light from the disc is converted by the λ / 4 plate 104 into linearly polarized light that becomes P-polarized light with respect to the PBS 103. As a result, the reflected light from the disk passes through the PBS 103. The PBS 103 is disposed so as to be inclined by 45 degrees with respect to the optical axes of the BD light, DVD light, and CD light. For this reason, when BD light, DVD light, and CD light are transmitted through the PBS 103 in a converged state, astigmatism is introduced into these lights.
　回折光学素子１０９は、ＢＤ光、ＤＶＤ光、ＣＤ光を回折させる。回折光学素子１０９は、ＢＤ光に対しては＋１次の回折効率が高く、ＤＶＤ光、ＣＤ光に対しては０次の回折効率が高くなるよう設計されている。ＢＤ光の＋１次の回折光は、回折光学素子１０９によってＤＶＤ光の光軸に近づく方向に曲げられ、光検出器１１０の受光面上において、ＤＶＤ光の照射位置に照射される。 The diffractive optical element 109 diffracts BD light, DVD light, and CD light. The diffractive optical element 109 is designed so that the + 1st order diffraction efficiency is high for BD light and the 0th order diffraction efficiency is high for DVD light and CD light. The + 1st order diffracted light of the BD light is bent in a direction approaching the optical axis of the DVD light by the diffractive optical element 109 and is irradiated on the light receiving surface of the photodetector 110 at the irradiation position of the DVD light.
　光検出器１１０には、ＤＶＤ光とＣＤ光の０次の回折光が照射される位置に、それぞれ、４分割センサが配置されている。ＢＤ光のメインビーム（＋１次回折光）は、上記のように回折光学素子１０９により回折されることにより、ＤＶＤ光を受光する４分割センサに照射される。さらに、光検出器１１０には、ＢＤ光の２つのサブビーム（＋１次回折光）が照射される位置に４分割センサが配置されている。光検出器１１０のセンサレイアウトは、各センサからの出力により、再生ＲＦ信号、フォーカスエラー信号、トラッキングエラー信号が生成されるよう設定されている。 The photodetector 110 is provided with a four-divided sensor at a position where the 0th-order diffracted light of DVD light and CD light is irradiated. The main beam of BD light (+ 1st order diffracted light) is diffracted by the diffractive optical element 109 as described above, and is irradiated to the quadrant sensor that receives the DVD light. Further, the photodetector 110 is provided with a four-divided sensor at a position where two sub beams (+ 1st order diffracted light) of BD light are irradiated. The sensor layout of the photodetector 110 is set so that a reproduction RF signal, a focus error signal, and a tracking error signal are generated by the output from each sensor.
　図２は、光ピックアップ装置を上側から見たときの斜視図である。図２には、図１の構成のうち、対物レンズ１０８、ホルダ１２１、対物レンズアクチュエータ１２２が示されている。その他の光学系は、ハウジング２００の裏面に装着されている。 FIG. 2 is a perspective view of the optical pickup device as viewed from above. FIG. 2 shows the objective lens 108, the holder 121, and the objective lens actuator 122 in the configuration of FIG. Other optical systems are mounted on the back surface of the housing 200.
　ハウジング２００は、ＰＰＳ（ポリフェニレンスルファイド）により形成され、裏側に図１（ａ）の光学系を装着するための凹部が形成されている。ハウジング２００の上面には、回路基板３００（図２には図示せず。図３（ａ）参照）が載置される台座２０１～２０４が形成されている。台座２０１～２０４の高さは、互いに等しくなっている。また、台座２０１、２０２に隣接する位置に、上方向に突出する円柱状の突起２０５、２０６が形成されている。さらに、台座２０３、２０４には、回路基板３００をネジ留めするためのネジ穴２０７、２０８が形成されている。 The housing 200 is formed of PPS (polyphenylene sulfide), and a recess for mounting the optical system of FIG. 1A is formed on the back side. On the upper surface of the housing 200, pedestals 201 to 204 on which the circuit board 300 (not shown in FIG. 2; see FIG. 3A) is placed are formed. The heights of the pedestals 201 to 204 are equal to each other. In addition, columnar protrusions 205 and 206 protruding upward are formed at positions adjacent to the bases 201 and 202. Furthermore, screw holes 207 and 208 for screwing the circuit board 300 are formed in the bases 203 and 204.
　突起２０５の天面２０５ａは、突起２０５の胴部よりも径が小さくなっており、天面２０５ａと胴部とをつなぐように傾斜面２０５ｂが形成されている。同様に、突起２０６の天面２０６ａは、突起２０６の胴部よりも径が小さくなっており、点面２０６ａと胴部とをつなぐように傾斜面２０６ｂが形成されている。 The diameter of the top surface 205a of the protrusion 205 is smaller than that of the body portion of the protrusion 205, and an inclined surface 205b is formed so as to connect the top surface 205a and the body portion. Similarly, the top surface 206a of the protrusion 206 has a diameter smaller than that of the body portion of the protrusion 206, and an inclined surface 206b is formed so as to connect the dot surface 206a and the body portion.
　さらに、ハウジング２００の突起２０６近傍には、円柱状のボス２０９が形成され、さらにボス２０９に隣接する位置に、台部２１０と、上下方向に延びる突状２１１が形成されている。ボス２０９は、上面の角が面取されて傾斜面となっている。また、ボス２０９の内部には、ハウジング２００の裏面からボス２０９内に延びるように、ネジ穴２１５（図２には図示せず。図６参照）が形成されている。このネジ穴２１５を介して、図１（ａ）に示すモータ１０６ｄがハウジング２００の裏面に装着される。すなわち、ボス２０９は、ハウジング２００の裏面にモータ１０６ｄを装着するために、ハウジング２００の上面から突出するよう形成されている。 Further, a cylindrical boss 209 is formed in the vicinity of the projection 206 of the housing 200, and a base 210 and a protrusion 211 extending in the vertical direction are formed at a position adjacent to the boss 209. The boss 209 is inclined by chamfering the top corner. A screw hole 215 (not shown in FIG. 2; see FIG. 6) is formed inside the boss 209 so as to extend from the back surface of the housing 200 into the boss 209. The motor 106d shown in FIG. 1A is attached to the back surface of the housing 200 through the screw hole 215. That is, the boss 209 is formed so as to protrude from the upper surface of the housing 200 in order to mount the motor 106d on the back surface of the housing 200.
　台部２１０は、ボス２０９と突状２１１とを繋ぐように形成されている。台部２１０の上面は、水平な平面となっている。台部２１０の上面の高さは、台座２０１～２０４に回路基板３００を装着したときの回路基板３００の上面の高さに略一致する。台部２１０の幅方向の両側には、台部２１０の上面からハウジング２００の上面に向かって傾斜する傾斜面が形成されている。 The base 210 is formed so as to connect the boss 209 and the protrusion 211. The upper surface of the base 210 is a horizontal plane. The height of the upper surface of the base 210 substantially matches the height of the upper surface of the circuit board 300 when the circuit board 300 is mounted on the bases 201 to 204. On both sides in the width direction of the pedestal 210, inclined surfaces that are inclined from the upper surface of the pedestal 210 toward the upper surface of the housing 200 are formed.
　突状２１１は、ボス２０９と向き合うように形成されている。突状２１１のボス２０９に対向する側面は、鉛直方向に平行な平面となっており、この側面の両側に、ボス２０９から離れる方向に傾斜した傾斜面が形成されている。さらに、突状２１１の上面は、角が面取りされている。 The protrusion 211 is formed so as to face the boss 209. A side surface of the protrusion 211 facing the boss 209 is a plane parallel to the vertical direction, and inclined surfaces inclined in a direction away from the boss 209 are formed on both sides of the side surface. Furthermore, the upper surface of the protrusion 211 has a chamfered corner.
　後述のように、ＦＰＣ４００（Flexible Printed Circuits）を回路基板３００に接続する際に、ＦＰＣ４００が、ボス２０９と突状２１１との間に挿入され、台部２１０の上面に載置される。ボス２０９と突状２１１の間隔は、ＦＰＣ４００の幅よりも僅かに大きい。ボス２０９と突状２１１は、上端が面取りされているため、ＦＰＣ４００を、ボス２０９と突状２１１との間に円滑に挿入することができる。 As will be described later, when the FPC 400 (Flexible Printed Circuits) is connected to the circuit board 300, the FPC 400 is inserted between the boss 209 and the protrusion 211 and placed on the upper surface of the base 210. The distance between the boss 209 and the protrusion 211 is slightly larger than the width of the FPC 400. Since the upper end of the boss 209 and the protrusion 211 is chamfered, the FPC 400 can be smoothly inserted between the boss 209 and the protrusion 211.
　さらに、ハウジング２００の上面には、台部２１２と長孔２１３が形成されている。台部２１２は、平面視において一方向に延びるよう形成され、上面が半円柱状（かまぼこ状）の曲面になっている。台部２１２の高さは、台部２１０の高さと等しい。長孔２１３は、台部２１２に沿うように形成され、ハウジング２００の上面から裏面に貫通している。長孔２１３の長さ方向の寸法は、ＦＰＣ４００の端部４０１（図１には図示せず。図３（ｂ）、図７参照）の幅よりも広くなっている。ＦＰＣ４００を回路基板３００に接続する際、ＦＰＣ４００の端部４０１が、長孔２１３を通されて、ＦＰＣ４００が台部２１２の上面に載置される。 Furthermore, a base 212 and a long hole 213 are formed on the upper surface of the housing 200. The base 212 is formed so as to extend in one direction in plan view, and the upper surface is a semi-cylindrical (kamaboko) curved surface. The height of the base part 212 is equal to the height of the base part 210. The long hole 213 is formed along the base portion 212 and penetrates from the upper surface of the housing 200 to the back surface. The longitudinal dimension of the long hole 213 is wider than the width of the end 401 (not shown in FIG. 1; see FIGS. 3B and 7) of the FPC 400. When connecting the FPC 400 to the circuit board 300, the end portion 401 of the FPC 400 is passed through the long hole 213, and the FPC 400 is placed on the upper surface of the base portion 212.
　図３（ａ）は、回路基板３００の構成を示す図である。 FIG. 3A is a diagram illustrating a configuration of the circuit board 300.
　回路基板３０１は、たとえば、プリント基板からなっている。回路基板３００には、上面に電気部品やコネクタが設置されている。また、回路基板３００には、ネジ留めのためのＵ字状の切り欠き３０１、３０２が形成され、さらに、突起２０５、２０６が挿入される円形の孔３０３、３０４が形成されている。切り欠き３０１、３０２の幅は、ネジ穴２０７、２０８よりもやや広く、台座２０３、２０４よりも狭い。また、孔３０３、３０４の径は、突起２０５、２０６の径よりも、僅かに大きい。 The circuit board 301 is made of, for example, a printed board. The circuit board 300 is provided with electrical components and connectors on the top surface. In addition, U-shaped cutouts 301 and 302 for screwing are formed in the circuit board 300, and circular holes 303 and 304 into which the protrusions 205 and 206 are inserted are formed. The widths of the notches 301 and 302 are slightly wider than the screw holes 207 and 208 and narrower than the bases 203 and 204. Further, the diameters of the holes 303 and 304 are slightly larger than the diameters of the protrusions 205 and 206.
　図３（ｂ）、（ｃ）は、ＦＰＣ４００の構成を示す図である。 FIGS. 3B and 3C are diagrams showing the configuration of the FPC 400. FIG.
　図３（ｂ）を参照して、ＦＰＣ４００は、可撓性を持つ材料からなっており、内部を配線が通っている。ＦＰＣ４００は、端部（コネクト部）４０１、４０４が、中間部（配線部）４０６よりも広くなっている。端部４０１には、基板３００側の電極３０５に対応する位置に電極４０２が形成され、さらに、突起２０６が圧入される孔４０３が形成されている。孔４０３は、配線が通っていない位置に形成されている。孔４０３は、長方形の角部が丸められた形状となっている。長辺方向の孔４０３の幅は、突起２０６の径よりも大きく、短辺方向の孔４０３の幅は、突起２０６の径よりも小さく、突起２０６の天面２０６ａの径よりも大きい。端部４０４には、モータ１０６ｄの端子Ｍ（図５参照）が挿入される端子孔４０５が形成されている。端子孔４０５の周縁は、電極が露出している。 Referring to FIG. 3B, the FPC 400 is made of a flexible material, and wiring is passed through the inside. In the FPC 400, end portions (connect portions) 401 and 404 are wider than an intermediate portion (wiring portion) 406. In the end 401, an electrode 402 is formed at a position corresponding to the electrode 305 on the substrate 300 side, and a hole 403 into which the protrusion 206 is press-fitted is formed. The hole 403 is formed at a position where no wiring passes. The hole 403 has a shape in which a rectangular corner is rounded. The width of the hole 403 in the long side direction is larger than the diameter of the protrusion 206, and the width of the hole 403 in the short side direction is smaller than the diameter of the protrusion 206 and larger than the diameter of the top surface 206a of the protrusion 206. A terminal hole 405 into which a terminal M (see FIG. 5) of the motor 106d is inserted is formed in the end 404. The electrode is exposed at the periphery of the terminal hole 405.
　図３（ｃ）を参照して、端部４０１の裏面には、端部４０１の略全領域を覆うように、補強板４１０が装着されている。補強板４１０には、孔４０３に対応する位置に孔４１１が形成されている。孔４１１は、突起２０６が孔４０３に圧入される際に孔４０３の周縁が変形し得るように、孔４０３よりも大きく形成されている。孔４１１の短辺方向および長辺方向の幅は、突起２０６の径よりも大きくなっている。 Referring to FIG. 3C, a reinforcing plate 410 is attached to the back surface of the end portion 401 so as to cover substantially the entire area of the end portion 401. A hole 411 is formed in the reinforcing plate 410 at a position corresponding to the hole 403. The hole 411 is formed larger than the hole 403 so that the periphery of the hole 403 can be deformed when the projection 206 is press-fitted into the hole 403. The width of the hole 411 in the short side direction and the long side direction is larger than the diameter of the protrusion 206.
　端部４０５の裏面にも、端部４０５の略全領域を覆うように、補強板４２０が装着されている。補強板４２０には、端子孔４０５に対応する位置に孔４２１が形成されている。 A reinforcing plate 420 is also attached to the back surface of the end portion 405 so as to cover substantially the entire area of the end portion 405. A hole 421 is formed in the reinforcing plate 420 at a position corresponding to the terminal hole 405.
　図４は、回路基板３００が装着された状態の光ピックアップ装置を上側から見たときの斜視図である。 FIG. 4 is a perspective view of the optical pickup device with the circuit board 300 mounted as viewed from above.
　回路基板３００は、孔３０３、３０４に突起２０５、２０６が挿入されるようにして、上側からハウジング２００の台座２０１～２０４（図２参照）に載置される。このとき、孔３０３、３０４に突起２０５、２０６が挿入されることにより、回路基板３００がハウジング２００に対して位置決めされる。これにより、切り欠き３０１、３０２（図３（ａ）参照）がネジ穴２０７、２０８（図２参照）の位置に整合する。この状態で、ネジ孔２０７、２０８にネジ３１１、３１２が留められて、回路基板３００がハウジング２００に対して固定される。 The circuit board 300 is placed on the bases 201 to 204 (see FIG. 2) of the housing 200 from above so that the protrusions 205 and 206 are inserted into the holes 303 and 304, respectively. At this time, the projections 205 and 206 are inserted into the holes 303 and 304, whereby the circuit board 300 is positioned with respect to the housing 200. Thereby, the notches 301 and 302 (see FIG. 3A) are aligned with the positions of the screw holes 207 and 208 (see FIG. 2). In this state, the screws 311 and 312 are fastened to the screw holes 207 and 208, and the circuit board 300 is fixed to the housing 200.
　この状態で、レンズアクチュエータ１０６がハウジング２００の裏面に装着され、レンズアクチュエータ１０６のモータ１０６ｄに接続されたＦＰＣ４００が回路基板３００に接続される。このとき、ＦＰＣ４００の端部４０１が、ハウジング２００の長孔２１３からハウジング２００の上面に引き出される。 In this state, the lens actuator 106 is mounted on the back surface of the housing 200, and the FPC 400 connected to the motor 106d of the lens actuator 106 is connected to the circuit board 300. At this time, the end portion 401 of the FPC 400 is pulled out from the long hole 213 of the housing 200 to the upper surface of the housing 200.
　図５は、ハウジング２００に対するレンズアクチュエータ１０６の装着状態を示す図である。 FIG. 5 is a view showing a mounting state of the lens actuator 106 with respect to the housing 200.
　レンズアクチュエータ１０６は、図１（ａ）に示す構成に加え、コイルバネ１０６ｅと、挟持部１０６ｆと、支持板１０６ｇと、ネジ１０６ｈを備えている。また、ハウジング２００は、シャフト１０６ｂに平行に延びるガイド板２１４を備えている。コイルバネ１０６ｅは、シャフト１０６ｂに通されている。挟持部１０６ｆは、ガイド板２１４を挟むように、移動部材１０６ａに形成されている。挟持部１０６ｆとガイド板２１４との間には隙間が設けられている。支持板１０６ｇは、ギア１０６ｃとモータ１０６ｄを支持する。支持板１０６ｇをネジ１０６ｈによりハウジング２００に取り付けることにより、ギア１０６ｃとモータ１０６ｄがハウジング２００に固定される。 The lens actuator 106 includes a coil spring 106e, a sandwiching portion 106f, a support plate 106g, and a screw 106h in addition to the configuration shown in FIG. The housing 200 includes a guide plate 214 extending in parallel with the shaft 106b. The coil spring 106e is passed through the shaft 106b. The clamping part 106f is formed in the moving member 106a so as to sandwich the guide plate 214. A gap is provided between the sandwiching portion 106f and the guide plate 214. The support plate 106g supports the gear 106c and the motor 106d. The gear 106c and the motor 106d are fixed to the housing 200 by attaching the support plate 106g to the housing 200 with screws 106h.
　さらに、モータ１０６ｄにＦＰＣ４００の端部４０４が接続されている。すなわち、ＦＰＣ４００の端部４０４に形成された４つの端子孔４０５がモータ１０６ｄの４つの端子Ｍに通された状態で、端子孔４０５と端子Ｍとが半田により接続される。なお、図５では、半田の図示が省略されている。そして、ＦＰＣ４００の端部４０１が長孔２１３に通されて、ＦＰＣ４００がハウジング２００の上部に引き出される。 Furthermore, the end portion 404 of the FPC 400 is connected to the motor 106d. That is, the terminal hole 405 and the terminal M are connected by soldering in a state where the four terminal holes 405 formed in the end portion 404 of the FPC 400 are passed through the four terminals M of the motor 106d. In FIG. 5, illustration of solder is omitted. Then, the end portion 401 of the FPC 400 is passed through the long hole 213, and the FPC 400 is pulled out to the top of the housing 200.
　図６は、図５の状態から、移動部材１０６ａと、ギア１０６ｃと、モータ１０６ｄと、支持板１０６ｇと、ネジ１０６ｈとを省略した図である。 FIG. 6 is a diagram in which the moving member 106a, the gear 106c, the motor 106d, the support plate 106g, and the screw 106h are omitted from the state of FIG.
　ハウジング２００には、ネジ１０６ｈを螺着するためのネジ穴２１５と、モータ１０６ｄを収容するための凹部２１６が形成されている。ネジ穴２１５は、ハウジング２１５の裏面から、ボス２０９（図４参照）の内部へと延びている。 The housing 200 is formed with a screw hole 215 for screwing the screw 106h and a recess 216 for accommodating the motor 106d. The screw hole 215 extends from the back surface of the housing 215 to the inside of the boss 209 (see FIG. 4).
　図７は、ＦＰＣ４００が回路基板３００に載置された状態の光ピックアップ装置を上側から見たときの斜視図である。また、図８（ａ）は、ＦＰＣ４００が長孔２１３から引き出される前のハウジング２００を長孔２１３側から見た斜視図、図８（ｂ）は、ＦＰＣ４００が長孔２１３から引き出されて回路基板３００上に載置された状態を長孔２１３側から見た斜視図である。 FIG. 7 is a perspective view of the optical pickup device with the FPC 400 mounted on the circuit board 300 as viewed from above. 8A is a perspective view of the housing 200 viewed from the long hole 213 side before the FPC 400 is pulled out from the long hole 213, and FIG. 8B is a circuit board in which the FPC 400 is pulled out from the long hole 213. FIG. 6 is a perspective view of the state of being placed on 300 viewed from the long hole 213 side.
　図７を参照して、長孔２１３から引き出されたＦＰＣ４００は、中間部４０６がボス２０９と突状２１１との間に挿入され、さらに、孔４０３が突起２０６に圧入されて、端部４０１が基板３００上に載置される。このとき、突起２０６を軸とするＦＰＣ４００の回転が、ボス２０９と突状２１１によって規制される。図８（ｂ）に示すように、ボス２０９と突状２１１は、ＦＰＣ４００の幅方向に対向しており、ボス２０９と突状２１１との間の隙間Ｄ１は、中間部４０６の幅よりも少しだけ大きくなっている。また、図７に示す突起２０６とボス２０９は、ＦＰＣ４００の幅方向に対向しており、突起２０６とボス２０９の間隔は、孔４０３から端部４０１のボス２０９側の端縁までの距離よりも少しだけ大きくなっている。このため、突起２０６を軸とするＦＰＣ４００の回転が、ボス２０９と突状２１１によって規制される。 Referring to FIG. 7, in FPC 400 drawn out from long hole 213, intermediate portion 406 is inserted between boss 209 and protrusion 211, hole 403 is press-fitted into protrusion 206, and end portion 401 is It is placed on the substrate 300. At this time, the rotation of the FPC 400 around the protrusion 206 is restricted by the boss 209 and the protrusion 211. As shown in FIG. 8B, the boss 209 and the protrusion 211 are opposed to each other in the width direction of the FPC 400, and the gap D1 between the boss 209 and the protrusion 211 is slightly smaller than the width of the intermediate portion 406. Only getting bigger. Further, the protrusion 206 and the boss 209 shown in FIG. 7 face each other in the width direction of the FPC 400, and the distance between the protrusion 206 and the boss 209 is larger than the distance from the hole 403 to the edge of the end 401 on the boss 209 side. It is a little bigger. For this reason, the rotation of the FPC 400 around the protrusion 206 is restricted by the boss 209 and the protrusion 211.
　また、図８（ａ）に示すように、台部２１０、２１２の高さは、回路基板３００の上面の高さに略一致する。このため、ＦＰＣ４００は、図８（ｂ）に示すように、中間部４０６と端部４０１が水平すなわち回路基板３００と平行となるように、回路基板３００へと導かれる。また、台部２１２の上面が半円柱形状となっているため、ＦＰＣ４００は、長孔２１３から回路基板３００に向かって滑らかに曲げられる。これによっても、ＦＰＣ４００の水平性が保たれ易くなる。このように、中間部４０６と端部４０１が回路基板３００と平行となるように、回路基板３００へと導かれることにより、端部４０１が回路基板３００に対して浮き上がることや、傾くことが抑制される。また、長孔２１３は、開口周辺に角を有するが、ＦＰＣ４００が台部２１２に沿って滑らかに曲がるため、この曲折部分が長孔２１３の角に当たることがない。このため、ＦＰＣ４００自体および中間部（配線部）４０６が保護される。 Further, as shown in FIG. 8A, the heights of the base portions 210 and 212 substantially coincide with the height of the upper surface of the circuit board 300. Therefore, as shown in FIG. 8B, the FPC 400 is guided to the circuit board 300 so that the intermediate portion 406 and the end portion 401 are horizontal, that is, parallel to the circuit board 300. In addition, since the upper surface of the base 212 has a semi-cylindrical shape, the FPC 400 is smoothly bent from the long hole 213 toward the circuit board 300. This also facilitates maintaining the horizontality of the FPC 400. In this way, the intermediate portion 406 and the end portion 401 are guided to the circuit board 300 so as to be parallel to the circuit board 300, thereby suppressing the end portion 401 from being lifted or tilted with respect to the circuit board 300. Is done. Further, the long hole 213 has a corner around the opening, but the FPC 400 smoothly bends along the base portion 212, so that the bent portion does not hit the corner of the long hole 213. Therefore, the FPC 400 itself and the intermediate part (wiring part) 406 are protected.
　以上のように、孔４０３が突起２０６に圧入されて、端部４０１が基板３００上に載置されると、端部４０１に形成された電極４０２が、回路基板３００側の電極３０５に向き合うようになる。この状態で、電極４０２と電極３０５とが半田付けされることにより、ＦＰＣ４００の回路基板３００に対する接続および固定が完了する。 As described above, when the hole 403 is press-fitted into the protrusion 206 and the end portion 401 is placed on the substrate 300, the electrode 402 formed on the end portion 401 faces the electrode 305 on the circuit substrate 300 side. become. In this state, the electrode 402 and the electrode 305 are soldered to complete the connection and fixing of the FPC 400 to the circuit board 300.
　図９（ａ）、（ｂ）は、図７（ａ）のＡ－Ａ’断面図である。図９（ａ）は、半田が付けられる前の状態を示し、図９（ｂ）は、半田が付けられた後の状態を示す。図９（ｃ）は、孔４０３と突起２０６の関係を示し、図９（ｄ）は、突起２０６が孔４０３に圧入された後の状態を示す。 FIGS. 9A and 9B are cross-sectional views taken along line A-A ′ of FIG. FIG. 9A shows a state before the solder is attached, and FIG. 9B shows a state after the solder is attached. FIG. 9C shows the relationship between the hole 403 and the protrusion 206, and FIG. 9D shows the state after the protrusion 206 is press-fitted into the hole 403.
　図９（ｃ）に示すように、孔４０３の短辺方向の幅Ｄ２は、突起２０６の径Ｄ３よりも小さい。このため、突起２０６が孔４０３に圧入されると、図９（ａ）に示すように、孔４０３の周縁部４０１ａが撓み、周縁部４０１ａの復元力によって、周縁部４０１ａが突起２０６の側面に押し付けられる。図９（ｄ）に示すように、周縁部４０１ａは、突起２０６の側面に沿って変形するため、変形した領域において、周縁部４０１ａが突起２０６の側面に押し付けられる。こうして周縁部４０１ａが突起２０６の側面に押し付けられると、周縁部４０１ａと突起２０６の側面との間の摩擦力によって、突起２０６に対する端部４０１の移動が抑制される。これにより、端部４０１が図９（ａ）の位置に仮止めされる。この状態において、図９（ｂ）に示すように、電極４０２と電極３０５との間に半田付けがなされる。これにより、ＦＰＣ４００が回路基板３００に対して、電気的に接続され、固定される。 As shown in FIG. 9C, the width D2 of the hole 403 in the short side direction is smaller than the diameter D3 of the protrusion 206. For this reason, when the protrusion 206 is press-fitted into the hole 403, the peripheral edge 401 a of the hole 403 is bent as shown in FIG. 9A, and the peripheral edge 401 a is applied to the side surface of the protrusion 206 by the restoring force of the peripheral edge 401 a. Pressed. As shown in FIG. 9D, the peripheral edge 401 a is deformed along the side surface of the protrusion 206. Therefore, the peripheral edge 401 a is pressed against the side surface of the protrusion 206 in the deformed region. When the peripheral edge portion 401 a is pressed against the side surface of the protrusion 206 in this way, the movement of the end portion 401 relative to the protrusion 206 is suppressed by the frictional force between the peripheral edge portion 401 a and the side surface of the protrusion 206. As a result, the end 401 is temporarily fixed at the position shown in FIG. In this state, soldering is performed between the electrode 402 and the electrode 305 as shown in FIG. As a result, the FPC 400 is electrically connected and fixed to the circuit board 300.
　＜実施形態の効果＞
　以上、本実施の形態によれば、孔４０３が突起２０６に圧入されることにより、ＦＰＣ４００がプリント基板３００に対して仮止めされる。よって、仮止めのために両面テープ等を貼り付ける手間を省くことができ、ＦＰＣ４００を接続する際の作業性を高めることができる。また、孔４０３を突起２０６に圧入することにより、電極３０５と電極４０２が互いに向き合うため、仮止め後の半田付けを円滑に行うことができる。 <Effect of embodiment>
As described above, according to the present embodiment, the FPC 400 is temporarily fixed to the printed circuit board 300 by pressing the holes 403 into the protrusions 206. Therefore, the trouble of sticking a double-sided tape or the like for temporary fixing can be saved, and workability when connecting the FPC 400 can be improved. Moreover, since the electrode 305 and the electrode 402 face each other by press-fitting the hole 403 into the protrusion 206, soldering after temporary fixing can be performed smoothly.
　また、本実施の形態によれば、回路基板３００の位置決めのための突起２０６がＦＰＣ４００の仮止めのために共用されるため、別途、ＦＰＣ４００の仮止めのために突起を設ける必要がなく、構成の簡素化が図られる。また、共通の突起２０６によって回路基板３００とＦＰＣ４００の両方が位置決めされるため、回路基板３００とＦＰＣ４００との間の位置関係が適正に保たれる。 Further, according to the present embodiment, since the protrusion 206 for positioning the circuit board 300 is shared for temporarily fixing the FPC 400, there is no need to separately provide a protrusion for temporarily fixing the FPC 400. Is simplified. In addition, since both the circuit board 300 and the FPC 400 are positioned by the common protrusion 206, the positional relationship between the circuit board 300 and the FPC 400 is properly maintained.
　また、本実施の形態によれば、突起２０６が円柱形状であるため、圧入の際に、孔４０３と突起２０６とを厳格に位置合わせせずとも、孔４０３を突２０６起に円滑に圧入できる。また、突起２０６の天面２０６ａの径が小さくなっており、天面２０６ａの周りに傾斜面２０６ｂが形成されているため、孔４０３を突起２０６に容易に圧入することができる。 In addition, according to the present embodiment, since the protrusion 206 has a cylindrical shape, the hole 403 can be smoothly press-fitted to the protrusion 206 without strictly aligning the hole 403 and the protrusion 206 at the time of press-fitting. . Moreover, since the diameter of the top surface 206a of the protrusion 206 is small and the inclined surface 206b is formed around the top surface 206a, the hole 403 can be easily press-fitted into the protrusion 206.
　また、本実施の形態によれば、突起２０６を中心としたＦＰＣ４００の回転がボス２０９と突状２１１とによって規制されるため、孔４０３を突起２０６に圧入した後のＦＰＣ４００の位置を適正なものとすることができる。これにより、電極３０５と電極４０２とを正確に向き合わせることができ、仮止め後の半田付けを円滑に行うことができる。 Further, according to the present embodiment, since the rotation of the FPC 400 around the protrusion 206 is restricted by the boss 209 and the protrusion 211, the position of the FPC 400 after press-fitting the hole 403 into the protrusion 206 is appropriate. It can be. Thereby, the electrode 305 and the electrode 402 can be correctly faced, and soldering after temporary fixing can be performed smoothly.
　さらに、本実施の形態によれば、台部２１０によって、ＦＰＣ４００の高さが回路基板３００の高さに揃えられるため、端部４０１が回路基板３００に対して浮き上がることや傾くことが抑制される。さらに、台部２１２によって、ＦＰＣ４００が水平になるように回路基板４００に導かれるため、端部４０１が回路基板３００に対して浮き上がることや傾くことが一層抑制される。よって、電極４０２が電極３０５に対して浮き上がることが抑制され、電極３０５と電極４０２との半田付けを円滑に行うことができる。 Furthermore, according to the present embodiment, since the height of the FPC 400 is aligned with the height of the circuit board 300 by the base 210, the end 401 is prevented from being lifted or inclined with respect to the circuit board 300. . Furthermore, since the FPC 400 is guided to the circuit board 400 so as to be horizontal by the base part 212, the end part 401 is further suppressed from being lifted or inclined with respect to the circuit board 300. Therefore, the electrode 402 is suppressed from being lifted with respect to the electrode 305, and the soldering between the electrode 305 and the electrode 402 can be performed smoothly.
　また、本実施の形態によれば、ＦＰＣ４００の中間部４０６をボス２０９と突条２１１との間に挿入して、端部４０１が回路基板３００に載置されると、ＦＰＣ４００の平面方向の移動が規制されて、電極３０５と電極４０２が互いに向き合うようになるため、電極３０５と電極４０２の位置合わせを容易に行うことができ、半田付けを円滑に行うことができる。 Further, according to the present embodiment, when the intermediate portion 406 of the FPC 400 is inserted between the boss 209 and the protrusion 211 and the end portion 401 is placed on the circuit board 300, the FPC 400 moves in the plane direction. Therefore, the electrode 305 and the electrode 402 face each other, so that the electrode 305 and the electrode 402 can be easily aligned, and soldering can be performed smoothly.
　また、本実施の形態によれば、ハウジング２００の裏面側から長孔２１３を通って回路基板３００へと向かうようにＦＰＣ４００を引き回す際に、台部２１２によってＦＰＣ４００が持ち上げられるため、ＦＰＣ４００が長孔４００の角に当ることが抑制され、ＦＰＣ４００が保護される。また、台部２１２上面が半円柱状（かまぼこ状）になっているため、長孔２１３を通してＦＰＣ４００を滑らかに引き回すことができる。なお、台部２１２の上面は、必ずしも半円柱状でなくても良く、少なくとも長孔２１３側の角部分が長孔２１３側に傾斜するように湾曲または面取りされていれば良い。 Further, according to the present embodiment, when the FPC 400 is drawn from the back surface side of the housing 200 toward the circuit board 300 through the long hole 213, the FPC 400 is lifted by the base portion 212. The hit of the corner of 400 is suppressed, and the FPC 400 is protected. In addition, since the upper surface of the base portion 212 has a semi-cylindrical shape (kamaboko shape), the FPC 400 can be smoothly routed through the long hole 213. Note that the upper surface of the base portion 212 does not necessarily have a semi-cylindrical shape, and may be curved or chamfered so that at least a corner portion on the long hole 213 side is inclined toward the long hole 213 side.
　以上、本発明の実施の形態について説明したが、本発明は上記実施の形態に何ら制限されるものではなく、また、本発明の実施の形態も上記の他に種々の変更が可能である。 The embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment, and various modifications can be made to the embodiment of the present invention in addition to the above.
　たとえば、上記の実施の形態では、ＦＰＣ４００側の孔４０３を角が丸められた長方形にしたが、突起２０６に圧入されるものであれば、孔４０３は他の形状であっても良い。たとえば、図１０（ａ）のように、突起２０６に圧入される孔４３１を、円形の孔部４３１の両側に２つのスリット４３１ｂが延設される形状としても良い。また、図１０（ｂ）のように、突起２０６に圧入される孔４３２を、円形の孔部４３２ａの周辺に２つの切込み４３２ｂを入れた形状としても良い。なお、切込みは２つに限らず、少なくとも一つの切込みが設けられれば良い。さらに、図１０（ａ）のように、突起２０６に圧入される孔４３３を、角のある長方形としても良い。何れの場合も、孔４３１～４３３の幅Ｄ２は、突起２０６の径Ｄ３よりも小さく、突起２０６の天面２０６ａの径よりも小さく設定するのが望ましい。また、図１０（ａ）、（ｂ）において、スリット４３１ｂおよび切込み４３２ｂの数は、２つに限らず、１つまたは３つ以上でも良い。 For example, in the above embodiment, the hole 403 on the FPC 400 side has a rectangular shape with rounded corners, but the hole 403 may have other shapes as long as it is press-fitted into the protrusion 206. For example, as shown in FIG. 10A, the hole 431 to be press-fitted into the protrusion 206 may have a shape in which two slits 431 b are extended on both sides of the circular hole portion 431. Further, as shown in FIG. 10B, the hole 432 to be press-fitted into the protrusion 206 may have a shape in which two notches 432b are formed around the circular hole 432a. The number of cuts is not limited to two, and at least one cut may be provided. Further, as shown in FIG. 10A, the hole 433 press-fitted into the protrusion 206 may be a rectangular with a corner. In any case, the width D2 of the holes 431 to 433 is preferably set smaller than the diameter D3 of the protrusion 206 and smaller than the diameter of the top surface 206a of the protrusion 206. In FIGS. 10A and 10B, the number of slits 431b and notches 432b is not limited to two, and may be one or three or more.
　また、上記実施の形態では、周縁部４０１ａの復元力によってＦＰＣ４００の端部４０１が仮止めされたが、図１０（ｅ）のように、突起２０６に括れ部分２０６ｃを設け、図１０（ｄ）のように、この括れ部分２０６ｃに周縁部４０１ａが嵌り込むように構成してもよい。こうすると、ＦＰＣ４００の端部４０１が突起２０６から抜けにくくなり、仮止めを一層確実に行うことができる。なお、図１０（ｅ）のように括れ部分２０６ｃを設ける場合には、括れ部分２０６ｃを上方向にも傾斜させ、周縁部４０１ａがある程度突起２０６から抜け易くするのが望ましい。こうすると、修理等の際に、ＦＰＣ４００を回路基板３００から容易に取り外せるようになる。 In the above embodiment, the end portion 401 of the FPC 400 is temporarily fixed by the restoring force of the peripheral portion 401a. However, as shown in FIG. 10E, the constricted portion 206c is provided on the protrusion 206, and FIG. As described above, the peripheral portion 401a may be fitted into the constricted portion 206c. This makes it difficult for the end portion 401 of the FPC 400 to come off from the protrusion 206, and temporary fixing can be performed more reliably. When the constricted portion 206c is provided as shown in FIG. 10E, it is desirable that the constricted portion 206c is inclined upward so that the peripheral edge 401a can be easily detached from the protrusion 206 to some extent. In this way, the FPC 400 can be easily detached from the circuit board 300 during repair or the like.
　また、上記の実施の形態では、突起２０６を円柱形状としたが、孔４０３に圧入されるものであれば、突起２０６は他の形状であっても良い。たとえば、図１１（ａ）に示すように、突起２０６が四角柱形状であっても良く、あるいは、図１１（ｂ）に示すように、突起２０６が八角柱形状であっても良い。 In the above embodiment, the protrusion 206 has a cylindrical shape, but the protrusion 206 may have another shape as long as it is press-fitted into the hole 403. For example, as shown in FIG. 11A, the projection 206 may have a quadrangular prism shape, or as shown in FIG. 11B, the projection 206 may have an octagonal prism shape.
　また、ＦＰＣ４００を仮止めするための突起と孔は一対でなくとも良く、２対以上の突起と孔によって、ＦＰＣ４００を仮止めしても良い。たとえば、図１１（ｃ）に示すように、突起２０６と孔４０３を、ハウジング２００と端部４０１にそれぞれ２ずつ設け、それぞれの孔４０３を対応する突起２０６に圧入することにより、ＦＰＣ４００を仮止めしても良い。ただし、この場合は、２つの孔４０３を突起２０６に圧入する必要があるため、上記実施の形態に比べると、仮止めのための作業がやや煩雑になる。 Also, the protrusion and hole for temporarily fixing the FPC 400 do not have to be a pair, and the FPC 400 may be temporarily fixed by two or more pairs of protrusions and holes. For example, as shown in FIG. 11 (c), two protrusions 206 and two holes 403 are provided in the housing 200 and the end 401, respectively, and each hole 403 is press-fitted into the corresponding protrusion 206, thereby temporarily fixing the FPC 400. You may do it. However, in this case, since it is necessary to press-fit the two holes 403 into the protrusion 206, the work for temporary fixing becomes somewhat complicated as compared with the above embodiment.
　また、上記実施の形態では、回路基板３００の位置決めのための突起２０６がＦＰＣ４００の仮止めのために共用されたが、別途、ＦＰＣ４００の仮止めのために突起を設けても良い。ただし、この場合は、別途突起が必要となるため、その分、構成が複雑になる。 In the above embodiment, the protrusion 206 for positioning the circuit board 300 is shared for temporarily fixing the FPC 400. However, a protrusion may be separately provided for temporarily fixing the FPC 400. However, in this case, since a separate protrusion is required, the configuration is complicated accordingly.
　また、上記実施の形態では、ボス２０９と突条２１１によって、ＦＰＣ４００の幅方向の位置ずれを規制したが、たとえば、壁と突起や、ボスと突起等、ＦＰＣ４００を幅方向に挟む他の構造によって、ＦＰＣ４００の幅方向の位置ずれを規制しても良い。また、ＦＰＣ４００の位置を規制するボス２０９は、モータ１０６ｄを取り付けるためのものであったが、他の部材を取り付けるためのものであっても良い。さらに、上記実施の形態では、ボス２０９によってハウジング２００の裏面側に部材（モータ１０６ｄ）が取りつけられたが、ハウジング２００の上面側に部材を取り付けるためのボスを、ＦＰＣ４００の位置ずれを規制するために共用しても良い。 Further, in the above-described embodiment, the positional deviation in the width direction of the FPC 400 is restricted by the boss 209 and the protrusion 211, but for example, by other structures that sandwich the FPC 400 in the width direction, such as a wall and a protrusion, or a boss and a protrusion. The positional deviation in the width direction of the FPC 400 may be regulated. The boss 209 that regulates the position of the FPC 400 is for attaching the motor 106d, but may be for attaching other members. Further, in the above embodiment, the member (motor 106d) is attached to the back surface side of the housing 200 by the boss 209. However, the boss for attaching the member to the upper surface side of the housing 200 is used to regulate the displacement of the FPC 400. You may share it.
　また、上記実施の形態では、回路基板３００の装着位置の近傍に配置された一つの台部２１０によって、ＦＰＣ４００の端部４０１が、回路基板３００の上面と平行かつ同じ高さとなるように持ち上げられたが、かかる作用を実現するための台部は、一つに限らず、複数設けても良い。さらに、回路基板３００の装着位置と長孔２１３との距離が短い場合には、長孔２１３に沿って配置された台部２１２が、ＦＰＣ４００の端部４０１を回路基板３００の上面と平行かつ同じ高さに持ち上げる作用を発揮するようにしても良い。 In the above embodiment, the end portion 401 of the FPC 400 is lifted so as to be parallel and at the same height as the upper surface of the circuit board 300 by the single base 210 arranged in the vicinity of the mounting position of the circuit board 300. However, the number of base parts for realizing such an action is not limited to one, and a plurality of base parts may be provided. Further, when the distance between the mounting position of the circuit board 300 and the long hole 213 is short, the base part 212 arranged along the long hole 213 has the end 401 of the FPC 400 parallel to the upper surface of the circuit board 300 and the same. You may make it exhibit the effect | action raised to height.
　さらに、上記実施の形態では、光ピックアップ装置におけるＦＰＣの取り付け構造に本発明が適用されたが、本発明は、光ピックアップ装置以外の装置におけるＦＰＣの取り付け構造にも適用可能である。また、本発明は、ＦＰＣに限らず、ＦＦＣ（Flexible Flat Cable）等、他のフレキシブル平面配線材を回路基板に取り付けるための取付構造にも適用可能である。 Furthermore, in the above embodiment, the present invention is applied to the FPC mounting structure in the optical pickup device. However, the present invention can also be applied to the FPC mounting structure in devices other than the optical pickup device. Further, the present invention is not limited to the FPC, and can also be applied to an attachment structure for attaching another flexible planar wiring material such as FFC (Flexible Flat Cable) to the circuit board.
　本発明の実施の形態は、特許請求の範囲に示された技術的思想の範囲内において、適宜、種々の変更が可能である。 The embodiment of the present invention can be appropriately modified in various ways within the scope of the technical idea shown in the claims.
　　１０１　…　半導体レーザ
　　１０５　…　コリメータレンズ
　　１０６　…　レンズアクチュエータ
　　１０６ｄ　…　モータ（電気部品）
　　１０８　…　対物レンズ
　　２００　…　ハウジング
　　２０６　…　突起
　　２０６ａ　…　天面
　　２０６ｂ　…　傾斜面
　　２０９　…　ボス（規制部、突部）
　　２１０　…　台部
　　２１１　…　突条（規制部）
　　２１２　…　台部
　　２１３　…　長孔
　　２１５　…　ネジ穴
　　３００　…　回路基板
　　３０４　…　孔（第２の孔）
　　３０５　…　電極（第１の電極）
　　４００　…　ＦＰＣ（フレキシブル平面配線材）
　　４０１　…　端部
　　４０２　…　電極（第２の電極）
　　４０３　…　孔（第１の孔） DESCRIPTION OF SYMBOLS 101 ... Semiconductor laser 105 ... Collimator lens 106 ... Lens actuator 106d ... Motor (electric part)
DESCRIPTION OF SYMBOLS 108 ... Objective lens 200 ... Housing 206 ... Protrusion 206a ... Top surface 206b ... Inclined surface 209 ... Boss (regulation part, protrusion part)
210 ... stand 211 ... ridge (regulation part)
212 ... Stand 213 ... Long hole 215 ... Screw hole 300 ... Circuit board 304 ... Hole (second hole)
305 ... Electrode (first electrode)
400 ... FPC (flexible flat wiring material)
401 ... end 402 ... electrode (second electrode)
403 ... hole (first hole)

Claims (11)

  1. 　ハウジングに固定され、上面に第１の電極が設けられた回路基板と、
    　フレキシブル平面配線材の端部に配置され、前記第１の電極に接続される第２の電極と、
    　前記フレキシブル平面配線材の前記端部に設けられ、前記ハウジングから突出する突起が圧入される第１の孔と、を備え、
    　前記第１の孔は、前記突起が圧入されるよう、前記突起よりも所定方向の幅が小さくなっており、前記第１の孔が前記突起に圧入されて前記フレキシブル平面配線材の前記端部が前記回路基板上に載置されると、前記第１の電極と前記第２の電極が互いに向き合うような位置に配置されている、
    ことを特徴とするフレキシブル平面配線材の取付構造。     A circuit board fixed to the housing and provided with a first electrode on the upper surface;
    A second electrode disposed at an end of the flexible planar wiring member and connected to the first electrode;
    A first hole provided at the end of the flexible planar wiring member and into which a protrusion protruding from the housing is press-fitted,
    The first hole has a width in a predetermined direction smaller than the protrusion so that the protrusion is press-fitted, and the first hole is press-fitted into the protrusion and the end portion of the flexible planar wiring member Is placed on the circuit board, the first electrode and the second electrode are arranged at positions facing each other,
    A mounting structure for a flexible planar wiring material, characterized in that
  2. 　請求項１に記載のフレキシブル平面配線材の取付構造において、
    　前記回路基板に設けられ、前記突起が挿入される第２の孔をさらに備え、
    　前記突起が前記第２の孔に挿入された後に、前記突起が前記第１の孔に圧入される、
    ことを特徴とするフレキシブル平面配線材の取付構造。     In the mounting structure of the flexible planar wiring material according to claim 1,
    A second hole provided in the circuit board and into which the protrusion is inserted;
    After the protrusion is inserted into the second hole, the protrusion is press-fitted into the first hole.
    A mounting structure for a flexible planar wiring material, characterized in that
  3. 　請求項２に記載のフレキシブル平面配線材の取付構造において、
    　前記突起は、前記回路基板を位置決めするために前記ハウジングに配置され、
    　前記突起が前記第２の孔に係合することにより、前記回路基板が前記ハウジングに対して位置決めされる、
    ことを特徴とするフレキシブル平面配線材の取付構造。     In the mounting structure of the flexible planar wiring material according to claim 2,
    The protrusion is disposed on the housing for positioning the circuit board;
    The protrusion is engaged with the second hole, whereby the circuit board is positioned with respect to the housing.
    A mounting structure for a flexible planar wiring material, characterized in that
  4. 　請求項１ないし３の何れか一項に記載のフレキシブル平面配線材の取付構造において、
    　前記突起は、円柱形状を有し、
    　前記ハウジングは、前記突起を中心とした前記フレキシブル平面配線材の回転を規制するための規制部を有する、
    ことを特徴とするフレキシブル平面配線材の取付構造。     In the mounting structure of the flexible planar wiring member according to any one of claims 1 to 3,
    The protrusion has a cylindrical shape,
    The housing has a restricting portion for restricting rotation of the flexible planar wiring member around the protrusion.
    A mounting structure for a flexible planar wiring material, characterized in that
  5. 　請求項４に記載のフレキシブル平面配線材の取付構造において、
    　前記規制部は、前記フレキシブル平面配線材を幅方向に挟む突部を有し、
    　前記突部は、前記フレキシブル平面配線材の他端に接続される電気部品を前記ハウジングの裏面にネジ留めするためのボスである、
    ことを特徴とするフレキシブル平面配線材の取付構造。     In the mounting structure of the flexible planar wiring material according to claim 4,
    The restricting portion has a protrusion that sandwiches the flexible planar wiring material in a width direction,
    The protrusion is a boss for screwing an electrical component connected to the other end of the flexible planar wiring member to the back surface of the housing.
    A mounting structure for a flexible planar wiring material, characterized in that
  6. 　請求項１ないし５の何れか一項に記載のフレキシブル平面配線材の取付構造において、
    　前記ハウジングの上面に、前記フレキシブル平面配線材が載置され、前記フレキシブル平面配線材の高さを前記回路基板の高さに揃えるための台部が配されている、
    ことを特徴とするフレキシブル平面配線材の取付構造。     In the mounting structure of the flexible flat wiring member according to any one of claims 1 to 5,
    On the upper surface of the housing, the flexible planar wiring material is placed, and a base part for arranging the height of the flexible planar wiring material to the height of the circuit board is disposed,
    A mounting structure for a flexible planar wiring material, characterized in that
  7. 　請求項１ないし６の何れか一項に記載のフレキシブル平面配線材の取付構造において、
    　前記突起の天面の幅が前記第１の孔よりも小さくなるように、前記突起の端部に傾斜面が形成されている、
    ことを特徴とするフレキシブル平面配線材の取付構造。     In the mounting structure of the flexible planar wiring member according to any one of claims 1 to 6,
    An inclined surface is formed at an end of the protrusion such that the width of the top surface of the protrusion is smaller than the first hole.
    A mounting structure for a flexible planar wiring material, characterized in that
  8. 　ハウジングに固定され、上面に第１の電極が設けられた回路基板と、
    　フレキシブル平面配線材の端部に配置され、前記第１の電極に接続される第２の電極と、
    　前記ハウジングに配置され、前記ハウジングに部品を設置するためのボスと、
    　前記ハウジングに配置され、前記ボスに対向する突部と、を備え、
    　前記ボスと前記突部の間隔が、前記フレキシブル平面配線材の幅に対応する間隔に設定され、
    　前記フレキシブル平面配線材を前記ボスと前記突部との間に挿入して、前記端部が前記回路基板に載置されると、前記第１の電極と前記第２の電極が互いに向き合うように、前記フレキシブル平面配線材の平面方向の移動が規制される、
    ことを特徴とするフレキシブル平面配線材の取付構造。     A circuit board fixed to the housing and provided with a first electrode on the upper surface;
    A second electrode disposed at an end of the flexible planar wiring member and connected to the first electrode;
    A boss disposed in the housing and for installing components in the housing;
    A protrusion disposed on the housing and facing the boss,
    The interval between the boss and the protrusion is set to an interval corresponding to the width of the flexible planar wiring member,
    When the flexible planar wiring member is inserted between the boss and the protrusion and the end portion is placed on the circuit board, the first electrode and the second electrode face each other. , Movement of the flexible planar wiring material in the planar direction is restricted,
    A mounting structure for a flexible planar wiring material, characterized in that
  9. 　ハウジングの上面に固定され、上面に第１の電極が設けられた回路基板と、
    　フレキシブル平面配線材の端部に配置され、前記第１の電極に接続される第２の電極と、
    　前記ハウジングに設けられ、前記フレキシブル平面配線材が通されることにより、前記フレキシブル平面配線材を、前記ハウジングの裏面側に設置される電気部品へと導く長孔と、
    　前記ハウジングの上面の、前記長孔から前記回路基板側に変位した位置に、前記長孔の長辺に沿うように設けられ、前記ハウジングの裏面側から前記長孔を通って前記回路基板へと向かう前記フレキシブル平面配線材を、前記長孔の前記回路基板側の角から離れるように持ち上げる台部と、を有する、
    ことを特徴とするフレキシブル平面配線材の取付構造。     A circuit board fixed to the upper surface of the housing and provided with a first electrode on the upper surface;
    A second electrode disposed at an end of the flexible planar wiring member and connected to the first electrode;
    A long hole that is provided in the housing and guides the flexible planar wiring member to an electrical component that is installed on the back side of the housing, through which the flexible planar wiring member is passed.
    The upper surface of the housing is provided at a position displaced from the long hole to the circuit board side along the long side of the long hole, and from the back side of the housing to the circuit board through the long hole. The flexible planar wiring material that faces the platform part that lifts away from the corner on the circuit board side of the long hole, and
    A mounting structure for a flexible planar wiring material, characterized in that
  10. 　ハウジングの上面に固定され、上面に第１の電極が設けられた回路基板と、
    　フレキシブル平面配線材の端部に配置され、前記第１の電極に接続される第２の電極と、
    　前記ハウジングに設けられ、前記フレキシブル平面配線材が通されることにより、前記フレキシブル平面配線材を、前記ハウジングの裏面側に設置される電気部品へと導く長孔と、
    　前記ハウジングの上面の、前記長孔から前記回路基板へと向かう径路上に設けられ、前
    記ハウジングの裏面側から前記長孔を通って前記回路基板へと向かう前記フレキシブル平面配線材の前記端部の高さを、前記ハウジングの上面に固定された前記回路基板の上面の高さに揃えるよう、前記フレキシブル平面配線材を持ち上げる台部と、を有する、
    ことを特徴とするフレキシブル平面配線材の取付構造。     A circuit board fixed to the upper surface of the housing and provided with a first electrode on the upper surface;
    A second electrode disposed at an end of the flexible planar wiring member and connected to the first electrode;
    A long hole that is provided in the housing and guides the flexible planar wiring member to an electrical component that is installed on the back side of the housing, through which the flexible planar wiring member is passed.
    The upper surface of the housing is provided on a path from the long hole toward the circuit board, and the end of the flexible planar wiring member is directed from the back surface side of the housing to the circuit board through the long hole. A platform for lifting the flexible planar wiring member so that the height is aligned with the height of the upper surface of the circuit board fixed to the upper surface of the housing,
    A mounting structure for a flexible planar wiring material, characterized in that
  11. 　請求項１ないし１０の何れか一項に記載のフレキシブル平面配線材の取付構造と、
    　レーザ光源と、
    　前記レーザ光源から出射されたレーザ光をディスク上に収束させる対物レンズと、
    　前記レーザ光源から出射されたレーザ光の収差を補正するためのレンズを光軸方向に駆動するためのレンズアクチュエータと、
    　前記レンズアクチュエータを駆動するモータと、を備え、
    　前記フレキシブル平面配線材の他端に前記モータが接続される、　
    を有することを特徴とする光ピックアップ装置。     The flexible flat wiring member mounting structure according to any one of claims 1 to 10,
    A laser light source;
    An objective lens for converging the laser beam emitted from the laser light source onto the disk;
    A lens actuator for driving a lens for correcting aberration of laser light emitted from the laser light source in the optical axis direction;
    A motor for driving the lens actuator,
    The motor is connected to the other end of the flexible planar wiring member;
    An optical pickup device comprising:
PCT/JP2012/078972 2011-11-16 2012-11-08 Attachment structure for flexible planar wire material, and optical pick-up device WO2013073444A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011251133A JP2015026401A (en) 2011-11-16 2011-11-16 Attachment structure of flexible plane wiring material, and optical pickup device
JP2011-251133 2011-11-16

Publications (1)

Publication Number Publication Date
WO2013073444A1 true WO2013073444A1 (en) 2013-05-23

Family

ID=48429507

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2012/078972 WO2013073444A1 (en) 2011-11-16 2012-11-08 Attachment structure for flexible planar wire material, and optical pick-up device

Country Status (2)

Country Link
JP (1) JP2015026401A (en)
WO (1) WO2013073444A1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05217355A (en) * 1992-02-03 1993-08-27 Ricoh Co Ltd Optical information recording and reproducing device
JPH05342835A (en) * 1992-06-05 1993-12-24 Ricoh Co Ltd Optical recording and reproducing device
JPH10275456A (en) * 1997-03-28 1998-10-13 Sanyo Electric Co Ltd Magnetic reproducing device
JP2000163775A (en) * 1998-11-25 2000-06-16 Matsushita Electric Ind Co Ltd Objective lens driving device
JP2006185553A (en) * 2004-12-28 2006-07-13 Nippon Densan Corp Motor unit, recording disk driving unit, and sealing method of through-hole formed on housing member
JP2006302378A (en) * 2005-04-19 2006-11-02 Funai Electric Co Ltd Electronic apparatus and pickup device
JP2007293992A (en) * 2006-04-24 2007-11-08 Nidec Sankyo Corp Optical head device
JP2010140552A (en) * 2008-12-11 2010-06-24 Funai Electric Co Ltd Optical pickup device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05217355A (en) * 1992-02-03 1993-08-27 Ricoh Co Ltd Optical information recording and reproducing device
JPH05342835A (en) * 1992-06-05 1993-12-24 Ricoh Co Ltd Optical recording and reproducing device
JPH10275456A (en) * 1997-03-28 1998-10-13 Sanyo Electric Co Ltd Magnetic reproducing device
JP2000163775A (en) * 1998-11-25 2000-06-16 Matsushita Electric Ind Co Ltd Objective lens driving device
JP2006185553A (en) * 2004-12-28 2006-07-13 Nippon Densan Corp Motor unit, recording disk driving unit, and sealing method of through-hole formed on housing member
JP2006302378A (en) * 2005-04-19 2006-11-02 Funai Electric Co Ltd Electronic apparatus and pickup device
JP2007293992A (en) * 2006-04-24 2007-11-08 Nidec Sankyo Corp Optical head device
JP2010140552A (en) * 2008-12-11 2010-06-24 Funai Electric Co Ltd Optical pickup device

Also Published As

Publication number Publication date
JP2015026401A (en) 2015-02-05

Similar Documents

Publication Publication Date Title
WO2013073444A1 (en) Attachment structure for flexible planar wire material, and optical pick-up device
JP2007200503A (en) Optical head device and its manufacturing method
JP2005339670A (en) Optical head apparatus
JP4566155B2 (en) Optical pickup
WO2013073445A1 (en) Optical element mounting structure, and optical pick-up device
JP5389862B2 (en) Objective lens driving device and optical pickup using the same
JP2008171498A (en) Optical head device
JP2014093113A (en) Optical pickup device
JP2014093114A (en) Optical pickup device
JP2014032717A (en) Optical pickup device
JP3052886U (en) Optical pickup device
JP2014021997A (en) Optical pickup device
WO2013153898A1 (en) Diffraction element and optical pickup device provided with same
JP5793409B2 (en) Optical pickup
JP4616792B2 (en) Optical pickup objective lens drive device
JP4566154B2 (en) Optical pickup
JP2014022012A (en) Fitting structure of optical element, and optical pickup device
JP3748265B2 (en) Optical pickup
WO2007063956A1 (en) Optical head device, and its manufacturing method
JP2012230740A (en) Optical pickup
JP2001202642A (en) Mounting structure for parts and optical pickup using same
JP2000285475A (en) Optical pickup
JP2005346878A (en) Optical pickup
WO2013114748A1 (en) Optical pickup device and adjustment method of optical pickup device
JP2006221721A (en) Optical head device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12849144

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12849144

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP