JP2014099231A - Optical pickup device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an excellently operating optical pickup device.SOLUTION: The optical pickup device includes: an electronic component; a connector 900 including a first insertion port 93 into which one end of a circuit board 102 outputting a control signal for driving the electronic component is inserted, a terminal 940 to which one end of the circuit board inserted into the first insertion port is attachably and detachably connected, and an operation part 92 by which the circuit board is attached to and detached from the terminal and supplying the control signal to the electronic component; a housing in which the electronic component is placed and the connector is placed so as to make an insertion direction where one end of the circuit board is inserted into the first insertion port parallel with a placing surface; and a cover 8 in which an operation hole 84 for operating the operation part is provided in a position where the operation part can be operated and which covers the housing. A second insertion port 103 for inserting one end of the circuit board into the first insertion port is formed between the housing and the cover.

Description

  The present invention relates to an optical pickup device.

  For example, a connector having an operation unit for attaching and detaching a circuit board to and from a terminal is known (for example, Patent Document 1).

JP 2011-60433 A

  The connector, including the connector of Patent Document 1, is provided in the optical pickup device in order to drive electronic components of the optical pickup device based on, for example, a control signal output from a circuit board. This connector may be provided at a position not covered by the cover of the optical pickup device so that the operation unit can be easily operated. In this case, when the control signal is output from the circuit board, the operation unit may be operated with, for example, a fingertip and the circuit board may be detached from the connector terminal, thereby causing a malfunction of the optical pickup device. is there.

  The main present invention that solves the above-described problems includes an electronic component, a first insertion port into which one end of a circuit board that outputs a control signal for driving the electronic component is inserted, and a first insertion port that is inserted into the first insertion port. A terminal that is detachably connected to one end of the circuit board; and an operation unit that attaches and detaches the circuit board to and from the terminal; and a connector that supplies the control signal to the electronic component; The component is placed, and the housing on which the connector is placed is operated so that the insertion direction in which one end of the circuit board is inserted into the first insertion port is parallel to the placement surface, and the operation unit is operated. And a cover that covers the housing, and an end of the circuit board is provided between the housing and the cover at the first insertion port. To insert into the second An optical pickup device characterized by insertion port is formed.

  Other features of the present invention will become apparent from the accompanying drawings and the description of this specification.

  According to the present invention, it is possible to provide an optical pickup device that operates well.

It is a figure which shows the structure of the optical system of the optical pick-up apparatus which concerns on embodiment of this invention. It is a figure which shows the structure of a part of optical system of the optical pick-up apparatus which concerns on embodiment of this invention. 1 is a perspective view showing an optical pickup device according to an embodiment of the present invention. 1 is an exploded perspective view showing an optical pickup device according to an embodiment of the present invention. It is a perspective view which shows the housing in embodiment of this invention. It is a perspective view which shows the rigid board | substrate in embodiment of this invention. It is a perspective view which shows FPC in embodiment of this invention. It is a perspective view which shows the fixing plate in embodiment of this invention. It is a top view which shows the cover in embodiment of this invention. It is a top view which shows a part of optical pick-up apparatus in embodiment of this invention. It is a top view which shows the connector in embodiment of this invention. It is sectional drawing which shows the connector of the state in which the flexible cable in embodiment of this invention was attached. It is sectional drawing which shows the connector of the state from which the flexible cable in embodiment of this invention was removed. It is a perspective view which shows the rigid board | substrate of the state in which FPC in embodiment of this invention was connected. It is a perspective view which shows the optical pick-up apparatus of the state from which the cover in embodiment of this invention was removed. It is a perspective view which shows the operation jig and optical pick-up apparatus in embodiment of this invention.

  At least the following matters will become apparent from the description of this specification and the accompanying drawings.

=== Optical System of Optical Pickup Device ===
Hereinafter, the optical system of the optical pickup device according to the present embodiment will be described with reference to FIGS. FIG. 1 is a diagram illustrating a configuration of an optical system of the optical pickup device according to the present embodiment. FIG. 2 is a diagram illustrating a partial configuration of an optical system of the optical pickup device according to the present embodiment.

  The optical pickup device 100 is a device that irradiates a rotating optical disc 5 (FIG. 3) with laser light and detects reflected light of the laser light reflected by the optical disc 5. The optical disc 5 on which information is recorded or reproduced by the optical pickup device 100 includes a DVD (Digital Versatile Disc) standard optical disc (hereinafter referred to as “first optical disc 5A”), a CD (Compact Disc) standard optical disc (hereinafter referred to as “Compact Disc” standard optical disc). (Referred to as “second optical disk 5B”). The optical pickup device 100 has an optical system along the optical path of the laser light applied to the first optical disc 5A and the second optical disc 5B.

  The optical system of the optical pickup device 100 is an optical system for the DVD standard and the CD standard, and includes a laser light source 11, a diffraction grating 12, a photodetector 13 (electronic component), an astigmatism generation plate 14, a beam splitter 15, 1. / 4 wavelength plate 16, collimating lens 17, rising mirror 18, front monitor diode 19 (electronic component), objective lens 31 (FIG. 2) (hereinafter also referred to as “optical component of optical pickup device 100”). . That is, the optical pickup device 100 includes a front monitor diode 19 (hereinafter also referred to as “front monitor detector”) that detects the intensity of laser light emitted from a laser light source 11 (hereinafter also referred to as “laser diode”) and an optical disk. 5 includes an optoelectronic component (opto device) such as a photodetector 13 that receives the laser beam reflected by the signal recording surface 5 and detects various kinds of disc information.

  The laser light source 11 has a wavelength of, for example, 655 nm in the red wavelength band (645 nm to 675 nm) irradiated to the first optical disc 5A, and a wavelength of, for example, 785 nm in the infrared wavelength band (765 nm to 805 nm) irradiated to the second optical disc 5B. The laser beams of two different wavelengths are selectively emitted. The laser light source 11 includes a first laser diode 111 that emits laser light having a wavelength of 655 nm, for example, and a second laser diode 112 that emits laser light having a wavelength of 785 nm, for example.

  The diffraction grating 12 generates 0th order light, + 1st order diffracted light, and −1st order diffracted light from the laser light emitted from the laser light source 11. The diffraction grating 12 is a composite optical component having a half-wave plate function for converting the polarization direction by 90 degrees.

  The beam splitter 15 is, for example, a flat beam splitter that reflects S-polarized laser light and transmits P-polarized laser light. The beam splitter 15 reflects the S-polarized laser light incident from the diffraction grating 12 toward the quarter-wave plate 16. At this time, the beam splitter 15 transmits a part of the laser light in the direction of the front monitor diode 19 in order to adjust the intensity of the laser light. That is, the front monitor diode 19 is irradiated with the laser light transmitted through the beam splitter 15. The front monitor diode 19 generates a light receiving output for adjusting the intensity of the laser light emitted from the laser light source 11 to a predetermined amount based on the intensity of a part of the laser light incident from the beam splitter 15. Optoelectronic components. The reflected light of the laser light incident from the quarter wavelength plate 16 is reflected by the first optical disk 5A or the second optical disk 5B, for example, to become P-polarized laser light. Therefore, the beam splitter 15 transmits the reflected light of the laser light in the direction of the astigmatism generation plate 14.

  The quarter wave plate 16 converts the laser light incident from the beam splitter 15 from linearly polarized light to circularly polarized light. The quarter-wave plate 16 converts the reflected light of the laser light incident from the collimating lens 17 from circularly polarized light to linearly polarized light.

  The collimating lens 17 converts the red wavelength band laser light incident from the quarter wavelength plate 16 into parallel light, and converts the infrared wavelength band laser light into weakly divergent light.

  The rising mirror 18 reflects the laser light incident from the collimating lens 17 in a direction perpendicular to the signal recording surface of the first optical disc 5A or the second optical disc 5B. The rising mirror 18 reflects the reflected light of the laser light incident from the objective lens 31 in the direction of the collimating lens 17.

  The objective lens 31 focuses the laser light incident from the rising mirror 18 on the signal recording layer on the signal recording surface of the first optical disc 5A or the second optical disc 5B.

  The reflected light of the laser light reflected by the signal recording layer of the first optical disc 5A or the second optical disc 5B returns to the objective lens 31, and enters the quarter-wave plate 16 through the rising mirror 18 and the collimating lens 17, The quarter wave plate 16 converts the circularly polarized light into linearly polarized light. The reflected light of the laser light that has become linearly polarized light enters the astigmatism generation plate 14 via the beam splitter 15.

  The astigmatism generation plate 14 generates astigmatism used for focus control in the reflected light of the laser light incident from the beam splitter 15.

  The photodetector 13 is irradiated with the reflected light of the laser light incident from the astigmatism generation plate 14. The photodetector 13 performs photoelectric conversion on the basis of the reflected light of the irradiated laser beam, and generates a light receiving output that generates an information data signal, a focus error signal, and a tracking error signal of the optical disc. The focus error signal is, for example, a signal used when the lens holder 300 (FIG. 4) is displaced in the optical axis direction of the objective lens 31 (Z axis in FIG. 4). The tracking error signal is a signal used when the lens holder 300 is displaced in the tracking direction (Y axis in FIG. 4), for example.

=== Optical Pickup Device ===
The optical pickup device according to this embodiment will be described below with reference to FIGS. FIG. 3 is a perspective view showing the optical pickup device according to the present embodiment. A rotating shaft 50 of a spindle motor (not shown) for rotating the optical disc 5 is indicated by a one-dot chain line for convenience of explanation. The optical disk 5 is indicated by a dotted line with a part thereof omitted. FIG. 3 shows the optical pickup device 100 with the flexible cable 102 attached thereto. FIG. 4 is an exploded perspective view showing the optical pickup device according to the present embodiment.

  In the present embodiment, the Z-axis is an axis along the longitudinal direction (focus direction, vertical direction) of the rotation shaft 50 of the spindle motor that rotates the optical disc 5, and the direction from the optical pickup device 100 toward the optical disc 5 (upper side). The direction from the optical disk 5 toward the optical pickup device 100 (downward) is the −Z direction. Of the first optical disc 5A and the second optical disc 5B, the optical disc rotated by the spindle motor is referred to as the optical disc 5 for convenience of explanation. The Y axis is an axis along the direction in which the optical pickup device 100 moves in the radial direction (tracking direction, radial direction) of the optical disc 5, and the direction in which the optical pickup device 100 moves away from the rotation shaft 50 is defined as the -Y direction. The direction in which the apparatus 100 approaches the rotation axis 50 is defined as the + Y direction. The X axis is an axis along the tangential direction of the optical disk 5, the direction from one side wall 21 toward the other side wall 22 is defined as + X direction, and the direction from the other side wall 22 toward one side wall 21 is defined as −X direction. To do.

  The optical pickup device 100 (FIG. 4) includes a housing 2, an optical component of the optical pickup device 100, an actuator 3, a first heat radiating plate 41, a second heat radiating plate 42, a rigid substrate 6, and a flexible printed circuit (FPC). 7, FPC 800, fixing plate 500, and cover 8.

  On the housing 2, the optical components of the optical pickup device 100, the first heat radiating plate 41, the second heat radiating plate 42, the rigid substrate 6, the FPC 7, the fixing plate 500, the FPC 800, the actuator 3, and the cover 8 are placed. The actuator 3 is a device that displaces the lens holder 300 in the focus direction or the tracking direction of the optical disc 5. The rigid substrate 6, the FPC 7, and the FPC 800 are substrates on which circuits and wirings for controlling the optical pickup device 100 are formed. The fixed plate 500 is a plate member for preventing the FPC 7 from being bent. The first heat radiating plate 41 is a metal plate for radiating heat generated by the laser light source 11. The second heat radiating plate 42 is a metal plate for radiating heat generated by a driver IC (not shown) for controlling light emission of the laser light source 11. The cover 8 is a metal lid that covers the housing 2.

=== Housing ===
Hereinafter, with reference to FIG.4 and FIG.5, the housing in this embodiment is demonstrated. FIG. 5 is a perspective view showing a housing in the present embodiment. A rotating shaft 50 of a spindle motor for rotating the optical disc 5 is indicated by a one-dot chain line for convenience of explanation.

  The housing 2 is made of, for example, resin, on which the optical components of the optical pickup device 100, the first heat radiating plate 41, the second heat radiating plate 42, the rigid substrate 6, the FPC 7, the fixing plate 500, the FPC 800, the actuator 3, and the cover 8 are placed. It is a housing.

  The housing 2 has a shape extending in the tangential direction (X axis). The end (23) on the side close to the rotation axis 50 in the tracking direction (Y-axis) (+ Y) has, for example, a shape bent with a predetermined curvature so as to avoid a spindle motor (not shown). The width in the tangential direction at the end portion (−Y) far from the rotation axis 50 in the tracking direction is, for example, along the shape of the casing of a control device (not shown) that controls the optical pickup device 100. As the distance from the rotating shaft 50 increases, the length decreases. Further, the end 24 is formed such that the thickness in the focus direction (Z-axis) is thinner than the thickness of the one side wall 21 in the focus direction and the thickness of the other side wall 22 in the focus direction. Yes. Therefore, when the cover 8 (FIG. 9) is attached to the housing 2, the insertion port 103 is formed between the rigid board 6 (FIG. 12) on the housing 2 and the cover 8. That is, at this time, the insertion port 103 is formed between the housing 2 and the cover 8. The insertion port 103 is an opening for inserting one end of the flexible cable 102 into the insertion port 93. The rigid substrate 6 and the cover 8 will be described later.

  The housing 2 includes component installation holes 25 and 26, projections 211, 212 and 217, claws 213, 214 and 215, an engaging portion 216, a female screw 27, and a recess 28.

  The component installation hole 25 is a through hole for installing the photodetector 13. The component installation hole 25 is a long hole extending along the tracking direction. The component installation hole 25 is provided on the other side wall 22 side.

  The component installation hole 26 is a through hole for installing the front monitor diode 19. The component installation hole 26 is provided at a position adjacent to the component installation hole 25. The component installation hole 26 is a long hole extending along the tangential direction. The component installation hole 26 is provided on the side closer to the rotation shaft 50 than the component installation hole 25 and on the side (−X) closer to the one side wall 21 than the component installation hole 25.

  The protrusions 211 and 212 are a pair of protrusions provided on the mounting surface of the housing 2 in order to position and fix the FPC 7 and the fixing plate 500 with respect to the housing 2.

  The recess 28 is a recess for positioning and fixing the first heat radiating plate 41, the second heat radiating plate 42, and the rigid substrate 6 with respect to the housing 2. The recess 28 extends along the tangential direction. The depression 28 is provided on the end 24 side (−Y) in the tracking direction. Therefore, the thickness of the end 24 in the focus direction (Z axis) is thinner than the thickness in the focus direction of the wall bodies 283 and 284 functioning as the side walls of the recess 28.

  The claws 213 and 214 are provided on the housing 2 in order to fix the rigid board 6 to the housing 2. The claws 213 and 214 are provided on the wall bodies 283 and 284, respectively. The nail | claw 213 is provided in the position facing the edge part 61 by the side of the screw hole 61A (-X) of the rigid board | substrate 6 (FIG. 6). The claw 214 is provided at a position facing the end 62 on the opposite side (+ X) to the screw hole 61 </ b> A side of the rigid substrate 6.

  The claw 215 is provided at the end 24 of the housing 2 for positioning and fixing the first heat radiating plate 41 with respect to the housing 2. The claw 215 is provided at a position facing the engagement hole 41 </ b> A of the first heat radiating plate 41.

  The engaging portion 216 is provided at a position facing the engaging piece 83 </ b> B of the cover 8 for fixing the cover 8 to the housing 2. The engaging portion 216 is a part of the cover 2 that has a shape that engages with the engaging piece 83B.

  The female screw 27 is screwed with the fixing screw 101 for fixing the cover 8 and the like to the housing 2. The female screw 27 is provided at a position facing the screw hole 42 </ b> A of the second heat radiating plate 42, the screw hole 61 </ b> A of the rigid board 6, and the screw hole 83 </ b> A of the cover 8.

  The protrusion 217 is a protrusion for positioning the cover 8 with respect to the housing 2. The protrusion 217 is provided on the side opposite to the female screw 27 in the tracking direction, for example.

=== First heat sink, second heat sink ===
Hereinafter, with reference to FIG. 4, the 1st heat sink and the 2nd heat sink in this embodiment are demonstrated.

  The first heat radiating plate 41 is a metal plate for radiating heat generated by the laser light source 11. The first heat radiating plate 41 extends, for example, along the tangential direction (X axis) so as to be in contact with a part of the laser light source 11. The front (−Y) end of the first heat radiating plate 41 is positioned below (−Z) along the front edge of the housing 2 so that the first heat radiating plate 41 is fixed to the housing 2. Exhibits a shape bent toward An engagement hole 41 </ b> A for hooking the claw 215 to the first heat radiating plate 41 is provided at the end on the near side of the first heat radiating plate 41.

  The second heat radiating plate 42 is a metal plate for radiating heat generated by a driver IC (not shown) for controlling light emission of the laser light source 11. The driver IC is provided, for example, on the lower surface (-Z) of the rigid substrate 6 (FIG. 6). The second heat radiating plate 42 extends, for example, along the tangential direction so as to come into contact with the package of the driver IC. A screw hole 42 </ b> A through which the fixing screw 101 is inserted is provided at one end (−X) of the second heat radiating plate 42.

=== Rigid substrate ===
Hereinafter, the rigid substrate in the present embodiment will be described with reference to FIG. FIG. 6 is a perspective view showing a rigid substrate in the present embodiment.

  The rigid board 6 is, for example, a rigid printed board for controlling the optical pickup device 100. The rigid substrate 6 has a shape extending in the tangential direction (X-axis) so as to be substantially parallel to the mounting surface of the housing 2 when mounted on the housing 2. The width of the rigid substrate 6 in the tangential direction becomes shorter as the distance from the rotation shaft 50 (FIG. 3) in the tracking direction (Y-axis) so that the rigid substrate 6 is placed on the end 24 of the housing 2. .

  The rigid board 6 includes a connector 900, a screw hole 61A, terminals 63A to 63C, and a terminal 63G.

  The screw hole 61 </ b> A is a through hole for fixing the rigid board 6 to the housing 2. The fixing screw 101 is inserted through the screw hole 61A. The screw hole 61 </ b> A is provided at a position facing the female screw 27 of the housing 2. The screw hole 61A is provided at one end (−X) in the tangential direction.

  The connector 900 is used to electrically connect a control circuit (not shown) that controls the optical pickup device 100 and the optical pickup device 100. The control circuit that controls the optical pickup device 100 receives, for example, an electrical signal from the photodetector 13 (FIG. 4) and the front monitor diode 19, and controls the operation of the actuator 3 based on the electrical signal. And an electric circuit provided outside the optical pickup device 100 for controlling the driver IC. The control circuit outputs a control signal for driving the photodetector 13 or outputs a control signal for driving the front monitor diode 19. Note that the control circuit of the optical pickup device 100 and the flexible cable 102 having the other end connected to the control circuit correspond to a circuit board. The connector 900 will be described later.

  The terminals 63A to 63C are electrically connected to the terminal 940 (FIG. 12) of the connector 900 via the wiring (not shown) of the rigid board 6. The terminal 940 will be described later. The wiring of the rigid substrate 6 is, for example, a wiring pattern provided on the rigid substrate 6. One end of the wiring of the rigid board 6 is led out to the upper surface (+ Z) of the rigid board 6 as terminals 63A to 63C, for example, and the other end of the wiring of the rigid board 6 is provided with a connector 900 on the upper surface of the rigid board 6, for example. It is assumed that it is led out as a terminal (hereinafter also referred to as “terminal on the other end side in the wiring of the rigid board 6”) at the position where it is located.

  The terminals 63A to 63C are provided in a part (+ X) on the opposite side to the screw hole 61A in the tangential direction. The terminals 63 </ b> A to 63 </ b> C are provided at positions surrounding a region where the mounting piece 76 (FIG. 7) of the FPC 7 on the rigid substrate 6 is fixed. For example, a plurality of terminals 63A are provided in the vicinity of the connector 900 along the tangential direction. For example, a plurality of terminals 63B are provided along the tracking direction on the side closer to the end 62 than the terminal 63A (+ X). For example, a plurality of terminals 63C are provided along the tangential direction on the side (+ Y) farther from the connector 900 than the terminals 63A and 63B.

  The terminal 63G is a terminal for grounding the cover 8 (FIG. 9) via a ground wiring (not shown) of the rigid board 6. One end of the ground wiring of the rigid board 6 is led out near the screw hole 61A on the upper surface of the rigid board 6 as, for example, a terminal 63G, and the other end of the ground wiring of the rigid board 6 is a connector on the upper surface of the rigid board 6, for example. It is assumed that it is led out as a terminal (hereinafter also referred to as “terminal on the other end side of the ground wiring of the rigid board 6”) at a position where 900 is provided. Note that, for example, a ground pattern having a relatively large area may be formed on the rigid substrate 6, and the ground pattern may be electrically connected to the cover 8 via the terminal 63 </ b> G.

=== FPC ===
Hereinafter, the FPC in the present embodiment will be described with reference to FIG. FIG. 7 is a perspective view showing the FPC in the present embodiment. Although the front monitor diode 19 is not visible, it is indicated by a dotted line for convenience of explanation.

  The FPC 7 is a flexible substrate for controlling the optical pickup device 100 and is connected to the rigid substrate 6. The FPC 7 is integrally formed. The photodetector 13, the adjustment plate 51, and the front monitor diode 19 are fixed to the FPC 7. The FPC 7 includes a mounting piece 71, insertion pieces 72 and 73, connecting pieces 74 and 75, a mounting piece 76, and a folded piece 716.

  The placing piece 71 is a part of the FPC 7 placed on the upper part (+ Z) of the housing 2. The mounting piece 71 has a flat plate shape extending along the tracking direction. The mounting piece 71 is provided on the side wall 22 side of the housing 2. The placement piece 71 is provided at a position adjacent to the component installation hole 25 in the tangential direction (X axis) and adjacent to the component installation hole 26 in the tracking direction (Y axis).

  The mounting piece 71 includes a first edge 713 extending along one edge (−X) of the component installation hole 25 (FIG. 5) in the tracking direction, and a rotation axis of the component installation hole 26 in the tangential direction. It has a second edge 714 extending along the edge on the side (-Y) far from 50 (FIG. 5). The first edge 713 is formed to extend linearly along the tracking direction along the periphery of the component installation hole 25 in the vicinity of the component installation hole 25. Further, the second edge 714 is formed so as to extend linearly along the periphery of the component installation hole 26 in the vicinity of the component installation hole 26 and along a direction slightly inclined from the tangential direction. Further, the mounting piece 71 has press-fit holes 711 and 712 for positioning and fixing the FPC 7 with respect to the housing 2. The press-fitting holes 711 and 712 are provided at positions facing the protrusions 211 and 212 of the housing 2, respectively.

  The insertion piece 72 is a part of the FPC 7 to which the photodetector 13 and the adjustment plate 51 are fixed (connected) and inserted into the component installation hole 25 together with the photodetector 13 and the adjustment plate 51. The insertion piece 72 is continuous from the first edge 713 of the placement piece 71 via the connection pieces 74 and 75. The insertion piece 72 has, for example, a substantially rectangular shape having two sides extending in the tracking direction and two sides extending in the focus direction (Z axis). The photodetector 13 is fixed to the surface (-X) of the insertion piece 72 on the mounting piece 71 side through the substrate portion 52 of the photodetector 13 using, for example, solder. An adjustment plate 51 made of, for example, aluminum for adjusting the position of the photodetector 13 and performing heat radiation is fixed to the surface (+ X) opposite to the surface to which the photodetector 13 is fixed of the insertion piece 72. Yes. That is, the adjustment plate 51 is coupled to the photodetector 13. The position adjustment of the photodetector 13 will be described later.

  The connecting pieces 74 and 75 are a part of the FPC 7 for connecting the placing piece 71 and the insertion piece 72. The connecting pieces 74 and 75 are a pair of pieces that are inserted into the component installation hole 25 together with the insertion piece 72. The connecting pieces 74 and 75 are bent so that the position adjustment of the photodetector 13 is performed in the component installation hole 25. That is, the connecting pieces 74 and 75 have a bent shape inside the component installation hole 25 so that adjustment for positioning the photodetector 13 is performed. Due to the bending of the connecting pieces 74 and 75, the insertion piece 72 can be moved inside the component installation hole 25 in a state where the placement piece 71 is fixed to the housing 2. The connecting pieces 74 and 75 connect the upper (+ Z) side of the insertion piece 72 and the first edge 713 of the mounting piece 71. The connecting pieces 74 and 75 are provided at positions adjacent to each other through the opening 71A in the tracking direction. For example, the connecting piece 74 is provided on the side (−Y) far from the insertion piece 73 in the tracking direction. The connecting piece 75 is provided, for example, on the side (+ Y) close to the insertion piece 73 in the tracking direction. Accordingly, the opening 71 </ b> A surrounded by the upper side of the connecting piece 74, the connecting piece 75, the first edge 713, and the insertion piece 72 is formed. And the optical path of the laser beam irradiated to 13 A of light-receiving surfaces of the photodetector 13 will be formed by this opening 71A.

  The insertion piece 73 is a part of the FPC 7 to which the front monitor diode 19 is fixed (connected) and is inserted into the component installation hole 26 together with the front monitor diode 19. The insertion piece 73 is continuously bent from a part of the second edge 714 of the placement piece 71 toward the lower side (−Z). The insertion piece 73 has, for example, a substantially rectangular shape having two sides extending in the tangential direction and two sides extending along the focus direction. The front monitor diode 19 is fixed to the surface (-Y) of the insertion piece 73 on the mounting piece 71 side using, for example, solder.

  The folded piece 716 is a part of the FPC 7 that is folded so that the mounting piece 76 faces the rigid substrate 6 (FIG. 15). The folded piece 716 is continuous from the side (-Y) far from the insertion piece 73 in the mounting piece 71. The folded piece 716 is folded after extending to the side (−X) away from the insertion piece 72 in the tangential direction. The folded piece 716 is folded around an axis along the tracking direction so that the attachment piece 76 faces the folded piece 716 on the lower side (−Z) of the folded piece 716 in the focus direction (Z axis). That is, the folded piece 716 is folded in the direction (+ X) from the mounting surface of the housing 2 to the component installation hole 25.

  The attachment piece 76 is a part of the FPC 7 for connecting the FPC 7 to the rigid board 6. The attachment piece 76 is provided on the opposite side (−Y) from the insertion piece 73 in the tracking direction. The attachment piece 76 extends continuously from the folded piece 716 toward the insertion piece 72 side (+ X) in the tangential direction. The attachment piece 76 has a shape that is surrounded by the terminals 63 </ b> A to 63 </ b> B of the rigid board 6 when being fixed to the rigid board 6. The attachment piece 76 has a terminal 76A.

  The terminal 76A is electrically connected to, for example, the front monitor diode 19 and / or the photodetector 13 via the FPC 7 wiring (not shown). The wiring of the FPC 7 is a wiring provided in the FPC 7. One end of the wiring of the FPC 7 is led out to the upper surface of the mounting piece 76 as, for example, a terminal 76A, and the other end of the wiring of the FPC 7 is electrically connected to, for example, the front monitor diode 19 or the photodetector 13 or both. ing.

  The terminal 76A is tangential at the end (−Y) far from the insertion piece 73 on the upper surface (+ Z) of the mounting piece 76 so that the terminal 63A is adjacent to the terminal 63A when the FPC 7 is connected to the rigid board 6. A plurality are provided along the direction. Note that terminals (not shown) are also provided at positions on the upper surface of the mounting piece 76 adjacent to the terminals 63B and 63C of the rigid board 6. The terminal provided at a position adjacent to the terminal 63B in the mounting piece 76 is referred to as a terminal 76B. A terminal provided at a position adjacent to the terminal 63C in the mounting piece 76 is referred to as a terminal 76C. Then, it is assumed that one end of the wiring of the FPC 7 described above is led out as terminals 76B and 76C, for example. Accordingly, the terminals 76B and 76C are also electrically connected to, for example, the front monitor diode 19 or the photodetector 13 through the wiring of the FPC 7, similarly to the terminal 76A.

  The terminal 76A of the mounting piece 76 and the terminal 63A of the rigid board 6 are connected to each other by, for example, solder 64A (FIG. 14). The terminal 76B of the mounting piece 76 and the terminal 63B of the rigid board 6 are connected to each other by, for example, solder 64B. The terminal 76C of the mounting piece 76 and the terminal 63C of the rigid board 6 are also connected to each other by, for example, solder (not shown). The solder for connecting the terminal 76C and the terminal 63C will be referred to as solder 64C. The FPC 7 and the rigid board 6 are electrically connected to each other. Further, the FPC 7 is fixed to the rigid substrate 6 by the solders 64A to 64C.

=== Fixed plate ===
Hereinafter, the fixing plate in the present embodiment will be described with reference to FIG. FIG. 8 is a perspective view showing a fixing plate in the present embodiment.

  The fixed plate 500 is a plate member made of resin, for example, 0.3 mm thick polyimide, which is fixed to the mounting piece 71 to prevent the FPC 7 from bending. The fixing plate 500 has a hardness that can prevent the FPC 7 from being bent. That is, the fixed plate 500 is a plate member that is harder than the FPC 7 so that the FPC 7 can be prevented from bending. The fixed plate 500 extends along the tracking direction (Y axis). The fixing plate 500 has a first edge 513 extending along the first edge 713 of the mounting piece 71 and a second edge 514 extending along the second edge 714 of the mounting piece 71. The first edge 513 is formed to extend linearly along the tracking direction along the periphery of the component installation hole 25 in the vicinity of the component installation hole 25. Further, the second edge 514 is formed to extend linearly along a direction slightly inclined from the tangential direction along the periphery of the component installation hole 26 in the vicinity of the component installation hole 26. The fixed plate 500 has a shape that covers the placement piece 71 from the upper part (+ Z). The fixing plate 500 is fixed to the upper surface (+ Z) of the mounting piece 71 using, for example, an adhesive. That is, the fixing plate 500 is fixed to the mounting piece 71 of the FPC 7 at the upper part of the mounting surface of the housing 2. At this time, the fixing plate 500 is fixed at a position adjacent to the end (−X) continuous from the placing piece 71 of the connecting pieces 74 and 75. Further, the fixing plate 500 is fixed at a position adjacent to the end (+ Z) continuous from the mounting piece 71 in the insertion piece 73. That is, the fixed plate 500 is disposed at a position near the component installation hole 25 on the mounting surface of the housing 2.

  The mounting surface of the housing 2 is a partial region on the upper (+ Z) surface of the housing 2 where the mounting piece 71 of the FPC 7 is mounted. That is, the mounting surface of the housing 2 is adjacent to the component installation hole 25 in the tangential direction (X axis) and adjacent to the component installation hole 26 in the tracking direction (Y axis). The housing 2 is formed so that the mounting surface of the housing 2 is orthogonal to the longitudinal direction of the rotating shaft 50 (FIG. 5) of the spindle motor, for example.

  The fixing plate 500 is provided with press-fitting holes 511 and 512. The press-fitting holes 511 and 512 are holes into which the projections 211 and 212 for press-fitting the fixing plate 500 with respect to the housing 2 are pressed. The press-fitting holes 511 and 512 are provided at positions facing the press-fitting holes 711 and 712 of the mounting piece 71, respectively. That is, the press-fitting holes 511 and 512 are provided at positions facing the protrusions 211 and 212 of the housing 2, respectively.

  From the above, the hardness of the mounting piece 71 is increased by fixing the fixing plate 500 to the mounting piece 71, and the mounting piece 71 is prevented from being bent. Further, since the fixing plate 500 is fixed to the housing 2 in a state of being fixed to the upper surface of the mounting piece 71, the mounting piece 71 is sandwiched between the mounting surface of the housing 2 and the fixing plate 500. It will be in the state. Therefore, the mounting piece 71 is further reliably prevented from being bent.

=== Cover ===
Hereinafter, the cover in the present embodiment will be described with reference to FIGS. 9 and 10.

  FIG. 9 is a plan view showing a cover in the present embodiment. FIG. 10 is a plan view showing a part of the optical pickup device in the present embodiment. In FIG. 10, a part of the side (−Y) far from the rotation axis 50 of the optical pickup device 100 in the tracking direction (Y axis) of FIG. 3 is shown. A part of the connector 900 is not visible, but is shown by a dotted line for convenience of explanation.

  The cover 8 is a metal lid that covers the housing 2 from the upper side (+ Z). The cover 8 is formed by bending a single metal plate, for example.

  For example, the photodetector 13 and the front monitor diode 19 mounted on the housing 2 have a relatively high voltage based on, for example, static electricity, and the like, via the terminals 940 of the connector 900 and the wiring of the FPC 7. When supplied to the monitor diode 19, it may malfunction or break down. In the ESD test (electrostatic discharge resistance test) of the optical pickup device 100, for example, based on the discharge from the ESD test device (not shown), the photodetector 13 via the terminal 940 of the connector 900 and the wiring of the FPC 7 is used. Even when a relatively high voltage is supplied to the front monitor diode 19, malfunction or failure of the photodetector 13 and the front monitor diode 19 may be caused. Therefore, for example, the terminal 940 of the connector 900 that is electrically connected to the terminal of the photodetector 13 and the terminal of the front monitor diode 19 needs to be covered so as not to be exposed.

  The cover 8 covers the terminal 940 of the connector 900 placed on the housing 2 from above. The cover 8 is grounded. The grounding of the cover 8 will be described later. The cover 8 includes an opening 82, an opening 84 (operation hole), engaging pieces 83B and 83C, projecting pieces 83E and 83F, and a contact piece 83A.

  The engagement pieces 83 </ b> B and 83 </ b> C and the protrusion pieces 83 </ b> E and 83 </ b> F are members for fixing the cover 8 to the housing 2, and are provided at, for example, the four corners of the cover 8.

  The engaging piece 83 </ b> B (FIG. 4) has a shape that engages with the engaging portion 216 of the housing 2, and is provided at a position facing the engaging portion 216. The engagement piece 83B has, for example, a substantially L shape that protrudes downward (−Z) in the focus direction and then bends in a direction intersecting the focus direction.

  The engagement piece 83 </ b> C (FIG. 4) has a shape that engages with a part of the end 23 of the housing 2 (FIG. 5), and is provided at a position facing a part of the end 23. An engaging portion that engages with the engaging piece 83 </ b> C is provided at a position facing the engaging piece 83 </ b> C in the housing 2.

  The projecting piece 83E faces the female screw 27 (FIG. 5) in the housing 2, for example, toward the direction (-X) away from the engaging piece 83B on the side opposite to the engaging piece 83B in the tangential direction. It protrudes. The projecting piece 83E is provided with a screw hole 83A at a position facing the female screw 27 of the housing 2. The fixing screw 101 (FIG. 4) is screwed into the screw hole 83A.

  The contact piece 83G is a piece for grounding the cover 8. The contact piece 83G is provided at a position facing the terminal 63G in the rigid board 6 fixed to the housing 2. Assume that the contact piece 83G is reliably in contact with the terminal 63G, for example, with its tip inclined downward in the vicinity of the protruding piece 83E.

  For example, the protrusion 83F faces the protrusion 217 in the housing 2 from the opposite side of the protrusion 83E in the tracking direction toward the direction (+ Y) away from the protrusion 83E on the opposite side of the protrusion 83E. It protrudes. The projecting piece 83F is provided with an insertion hole 83D at a position facing the projection 217 of the housing 2. A protrusion 217 is inserted into the insertion hole 83D when the cover 8 is positioned with respect to the housing 2.

  The opening 82 is a hole for exposing the objective lens 31 (FIG. 3), and is provided at a position facing the objective lens 31.

  The opening 84 is an operation hole for operating the operation piece 92 (operation unit) (FIG. 10) of the connector 900. The opening 84 is provided at a position facing the operation piece 92 of the connector 900. That is, for example, the terminals 940 other than the part facing the opening 84 in the connector 900 are covered from the upper side by the cover 8. The opening 84 and the connector 900 will be described later.

=== Connector ===
The connector according to this embodiment will be described below with reference to FIGS. 4 and 11 to 13.

  FIG. 11 is a plan view showing the connector in the present embodiment. FIG. 12 is a cross-sectional view showing the connector with the flexible cable attached in the present embodiment. FIG. 13 is a cross-sectional view showing the connector with the flexible cable removed in the present embodiment. 12 and 13 show a part of the flexible cable 102, a part of the operation jig 505, the cover 8, the connector 900, and the rigid board 6 as viewed in the + X direction from the C1-C2 cross section of FIG. Has been.

  The connector 900 is a connector to which the flexible cable 102 is attached / detached. The connector 900 is connected to the connector 900 by rotating an operation piece 92 provided on the side (+ Y) opposite to the insertion port 93 (first insertion port) (FIG. 12) into which one end of the flexible cable 102 is inserted. For example, a back lock type connector that locks the flexible cable 102 is used. The locking of the flexible cable 102 with respect to the connector 900 will be described later. The connector 900 is disposed (placed) on the rigid substrate 6 in order to electrically connect the optical pickup device 100 and a control circuit of the optical pickup device 100. The connector 900 is fixed in the vicinity of the end portion 64 on the side (−Y) to which the flexible cable 102 is attached on the upper (+ Z) surface of the rigid board 6 (FIG. 6). That is, the connector 900 is a rigid board so that the insertion direction (Y-axis) of the flexible cable 102 into which one end is inserted into the insertion port 93 of the connector 900 is parallel to the mounting surface of the housing 2. 6 will be provided. The connector 900 has a long shape extending along the tangential direction (X axis). The connector 900 includes a case 91, an operation piece 92, a turning piece 94, and a fixed piece 95.

  The case 91 is, for example, a resin case for housing a part of the rotating piece 94 and a part of the fixed piece 95. The case 91 has, for example, a shape extending along the tangential direction. An insertion port 93 into which one end of the flexible cable 102 is inserted is provided on the opposite side (−Y) of the case 91 to the operation piece 92.

  The rotating piece 94 and the fixed piece 95 are metal pieces forming a terminal 940 to which one end of the flexible cable 102 is detachably connected. The rotating piece 94 and the fixed piece 95 are electrically connected to a terminal (not shown) provided at one end of the flexible cable 102. A plurality of terminals 940 including the rotating piece 94 and the fixed piece 95 are provided in the case 91 adjacent to each other along the direction (X axis) intersecting the direction (Y axis) in which the flexible cable 102 is attached and detached, for example. It has been. That is, the connector 900 has a long shape extending along a direction (X axis) in which a plurality of terminals 940 are adjacent to each other. Note that one end of the flexible cable 102 is provided with a plurality of terminals that are electrically connected to the plurality of terminals 940 in the connector 900, and the other end of the flexible cable 102 is a control circuit for controlling the optical pickup device 100. It shall be electrically connected.

  The fixed piece 95 has a shape extending along the direction (Y axis) in which the flexible cable 102 is attached and detached. An end portion 951 on the opposite side (+ Y) of the fixed piece 95 to the insertion port 93 is connected to, for example, a solder terminal on the other end side of the wiring of the rigid board 6 or a terminal on the other end side of the ground wiring of the rigid board 6. Etc., and fixed to the upper surface of the rigid substrate 6 in a state of being electrically connected. The end portion 951 is accommodated in the case 91 so as not to be exposed from the case 91, for example. An end portion 952 on the insertion port 93 side (−Y) of the fixed piece 95 is arranged so that one end of the flexible cable 102 can be gripped together with the end portion 942 of the rotating piece 94 rotated in the B1 direction (FIG. 12). The part protrudes toward the upper side (+ Z). The end portion 951 is accommodated in the case 91 so as not to be exposed from the case 91, for example. The rotation of the rotating piece 94 will be described later.

  The rotating piece 94 has a shape extending along the direction (Y axis) in which the fixed piece 95 extends. The rotating piece 94 is coupled to the fixed piece 95 so as to be rotatable around a shaft member 96 along a tangential direction (X axis) intersecting with a direction (Y axis) in which the rotating piece 94 extends. The turning piece 94 is turned so that the turning piece 94 is turned based on the force transmitted from the operation piece 92 to the end 941 of the turning piece 94 opposite to the insertion port 93. The approximate center of 94 is connected to the fixed piece 95. The end piece 941 of the turning piece 94 is closer to the operation piece 92 than the edge of the case 91 opposite to the insertion port 93 so that the end piece 941 contacts the transmission portion 922 when the operation piece 92 is turned in the A1 direction. It protrudes to the side (+ Y). That is, the end 941 is exposed from the case 91 in the direction in which the rotating piece 94 extends. Therefore, the terminal 940 is exposed from the case 91 (FIG. 11). The end portion 942 on the insertion opening 93 side of the rotating piece 94 is one so that one end of the flexible cable 102 can be gripped together with the end portion 952 of the fixed piece 95 when the rotating piece 94 is rotated in the B1 direction. The part protrudes toward the lower side (-Z). Note that the end portion 941 is accommodated in the case 91 so as not to be exposed from the case 91, for example. The rotation of the rotating piece 94 will be described later.

  Here, the shaft member 96 is a long rotating shaft along the tangential direction, and is a metal member connecting the fixed pieces 95 and the rotating pieces 94 in the plurality of terminals 940. . Accordingly, each rotating piece 94 is coupled to each fixed piece 95 in a state of being electrically connected to each fixed piece 95 via the shaft member 96. Furthermore, the shaft member 96 is provided with, for example, a spring (not shown) for urging the rotating piece 94. For example, the turning piece 94 is biased by the spring so that the end 941 of the turning piece 94 moves downward (−Z).

  The operation piece 92 is, for example, a resin operation piece for operating the rotation of the rotation piece 94. The operation piece 92 is operated when the flexible cable 102 is attached to or detached from the terminal 940. The operation piece 92 is provided in the case 91 so as to be rotatable about the rotation shaft 921 in the A1 direction (FIG. 12) or the A2 direction (FIG. 13). The operation piece 92 has a long shape extending along the tangential direction. The operation piece 92 includes a transmission portion 922 for transmitting a force for rotating the rotation piece 94 in the B1 direction with respect to the end portion 941 of the rotation piece 94. For example, when the operation piece 92 is rotated in the A1 direction, the transmission unit 922 contacts the end 941 of the rotation piece 94, and when the operation piece 92 is rotated in the A2 direction, the transmission piece 922 is rotated. The main body 920 of the operation piece 92 is bent from the main body 920 of the operation piece 92 via the rotation shaft 921 so as to be separated from the end portion 941 of 94.

  For example, when the operation piece 92 is rotated in the A2 direction (FIG. 13) around the rotation shaft 921, the transmission portion 922 of the operation piece 92 is separated from the end portion 941 of the rotation piece 94. The rotating piece 94 is rotated in the B2 direction based on, for example, an urging force from a spring provided on the shaft member 96. At this time, a gap is formed between the end portion 952 of the fixed piece 95 and the end portion 942 of the rotating piece 94 so that one end of the flexible cable 102 can be inserted and removed. Therefore, when the operation piece 92 is rotated in the A2 direction around the rotation shaft 921, the flexible cable 102 can be attached to and detached from the connector 900. That is, at this time, attachment / detachment of the flexible cable 102 to / from the connector 900 is permitted.

  When the operation piece 92 is rotated in the A2 direction around the rotation shaft 921, the main body portion 920 of the operation piece 92 and the edge 843 of the cover 8 around the opening 84 come into contact with each other in the A2 direction. The rotation of the operation piece 92 is stopped. The edge 843 functions as a stopper for stopping the rotation of the operation piece 92 in the A2 direction at a predetermined position. The edge 843 functioning as the stopper prevents, for example, the main body 920 from entering the lower side of the cover 8 and making the operation piece 92 difficult to operate.

  Further, for example, when the operation piece 92 is rotated in the A1 direction (FIG. 12) around the rotation shaft 921, the transmission portion 922 of the operation piece 92 is located below the end 941 of the rotation piece 94 (− Abut from Z). The end 941 of the rotating piece 94 is pushed up from the lower side to the upper side (+ Z) based on the force transmitted from the transmission unit 922. The rotating piece 94 is rotated in the B1 direction around the shaft member 96 against an urging force such as a spring. At this time, the flexible cable 102 inserted between the fixed piece 95 and the rotating piece 94 is rotated so as to be gripped by the end portion 942 of the rotating piece 94 and the end portion 952 of the fixed piece 95. The gap between the end portion 942 of the piece 94 and the end portion 952 of the fixed piece 95 is relatively narrow. In addition, when the flexible cable 102 is not inserted between the fixed piece 95 and the rotating piece 94, when the operation piece 92 is rotated about the rotating shaft 921 in the A1 direction, Since the gap between the end portion 942 and the end portion 952 of the fixed piece 95 is relatively narrow, one end of the flexible cable 102 cannot be inserted between the rotating piece 94 and the fixed piece 95. Therefore, when the operation piece 92 is rotated in the A1 direction around the rotation shaft 921, the flexible cable 102 cannot be attached to or detached from the connector 900. That is, at this time, attachment / detachment of the flexible cable 102 to / from the connector 900 is prohibited.

  When the operation piece 92 is turned in the A1 direction around the turning shaft 921, for example, the main body 920 of the operation piece 92 and the stopper member 97 on the rigid board 6 come into contact with each other in the A1 direction. The rotation of the operation piece 92 may be stopped.

  When the flexible cable 102 is attached to or detached from the terminal 940, the operation piece 92 is moved to a position where it comes into contact with an edge 843 that is a part of the periphery of the opening 84. The position of the operation piece 92 that is moved when the flexible cable 102 is attached to or detached from the terminal 940 corresponds to the first position. Further, when the flexible cable 102 is not attached to or detached from the terminal 940, the operation piece 92 is moved to a position away from the opening 84. On the other hand, the position of the operation piece 92 that is moved when the flexible cable 102 is not attached to or detached from the terminal 940 corresponds to the second position.

=== Open for operating the operation piece of the connector ===
Hereinafter, the opening for operating the operation piece of the connector in the present embodiment will be described with reference to FIGS. 9, 10, 12, and 13.

  The opening 84 is an operation hole for operating the operation piece 92 of the connector 900 in the optical pickup device 100 with the cover 8 attached. The opening 84 does not face the terminal 940 in the thickness direction (Z axis) of the rigid substrate 6 and is provided at a position where the operation piece 92 can be operated. The opening 84 is provided at a position facing the operation piece 92, for example. The opening 84 is provided on the insertion port 103 (second insertion port) (FIG. 12) side (−Y) communicating with the insertion port 93 of the connector 900. The insertion port 103 is provided on the opposite side (−Y) from the rotation shaft 50 in the optical pickup device 100 (FIG. 3) so that one end of the flexible cable 102 is inserted. The opening 84 has, for example, a long hole shape extending along the longitudinal direction (X axis) in which the operation piece 92 extends so that the operation piece 92 can be operated by the operation jig 505.

  The length D2 (FIG. 9) of the opening 84 in the tangential direction (X axis) is set to be longer than, for example, the length of the operation piece 92 in the tangential direction so that the operation piece 92 can be operated. Furthermore, the length D2 of the opening 84 is, for example, a part of the operation jig 505 inserted into the opening 84 so that the operation jig 505 (FIG. 16) can be inserted into the optical pickup device 100 from the opening 84. It is set longer than the length in the tangential direction.

  The width D1 of the opening 84 in the tracking direction (Y-axis) is set to a length that allows the operation piece 92 to be operated by the operation jig 505 and to secure a movable region of the operation piece 92. Furthermore, the width D1 of the opening 84 is set to a relatively short length so that one end 941 of each rotating piece 94 of the plurality of terminals 940 is covered with the cover 8 from above.

  That is, only the main body 920 of the operation piece 92 in the connector 900 is exposed from the opening 84, and for example, the terminals 940 other than the main body 920 in the connector 900 are covered from the upper side by the cover 8. Accordingly, during the ESD test of the optical pickup device 100, a relatively high voltage is applied to the photodetector 13, the front monitor diode 19 and the like via the terminal 940 of the connector 900 based on, for example, discharge from the ESD test device. Thus, it is possible to prevent the photodetector 13, the front monitor diode 19 and the like from failing. For example, the electric charge based on the air discharge of the ESD test apparatus is supplied to the metal cover 8 without being supplied to the terminal 940. The electric charge supplied to the cover 8 is supplied to the ground pattern of the rigid substrate 6, for example. For example, the charge supplied to the cover 8 may be discharged from the optical pickup device 100 via the ground pattern of the rigid substrate 6. Therefore, for example, charges based on static electricity or the like are supplied via the terminal 940 and supplied to the photodetector 13, the front monitor diode 19 and the like, and the optical pickup device 100 is prevented from being damaged.

  A first cutout 842 and a second cutout 844 are provided around the opening 84. The first notch 842 and the second notch 844 are respectively formed on the edges 841 and 843 facing each other around the opening 84.

  The first cutout 842 is formed by cutting out a part of the edge 841 so that the tip of the operation jig 505 (operation tool) can be disposed below the main body 920 of the operation piece 92, for example. Here, the distal end of the operation jig 505 (FIG. 12) is, for example, an edge (hereinafter referred to as “main body”) of the main body 920 of the operation piece 92 rotated in the A1 direction on the opposite side (+ Y) from the rotation shaft 921. It is bent so as to be substantially L-shaped so as to be caught by the “edge of the part 920”. For example, when operating the operation piece 92 using the operation jig 505, it is necessary to insert the tip of the operation jig 505 to the lower side (−Z) of the main body portion 920 of the operation piece 92. Therefore, for example, the distance D3 (FIG. 12) in the tracking direction (Y axis) from the edge of the main body 920 to the edge of the cover 8 provided with the opening 84 in the operation piece 92 rotated in the A1 direction is It is desirable that the length of the operation jig 505 be such that the tip of the operation jig 505 can be inserted to the lower side (-Z) of the main body 920 of the operation piece 92. Since the first notch 842 is provided in the opening 84, the aforementioned distance D3 is longer than the thickness of the operation jig 505, for example, and the tip of the operation jig 505 is hooked below the edge of the main body 920. Is possible. That is, the operation piece 92 can be operated by the operation jig 505.

  The second notch 844 is a notch for moving the operation piece 92 in the A1 direction. That is, the second notch 844 is a notch for moving the operation piece 92 from the first position to the second position. The second notch 844 is, for example, a gap 84A (FIG. 13) for operating the operation piece 92 between the main body 920 of the operation piece 92 rotated in the A2 direction (FIG. 13) and the edge 843 of the cover 8. It is a notch for forming. Here, as described above, when the operation piece 92 is rotated in the A2 direction and the main body 920 contacts the edge 843, for example, the operation jig 505 is used to rotate the operation piece 92 in the A1 direction. May be difficult to hook on the edge of the main body 920. Since the second notch 844 is provided in a part of the edge 843, a gap 84A (FIG. 13) is formed when the main body 920 and the edge 843 come into contact with each other. Accordingly, for example, it is possible to operate the operation piece 92 by inserting a part of the tip of the operation jig 505 into the gap 84 </ b> A and hooking the tip of the operation jig 505 on the edge of the main body 920.

  The second notch 844 is provided at a position not facing the terminal 940 so that the terminal 940 of the connector 900 is not exposed from the cover 8.

=== Assembling the optical pickup device ===
Hereinafter, assembly of the optical pickup device in the present embodiment will be described with reference to FIGS. 4, 14, and 15. FIG. 14 is a perspective view showing the rigid board in a state where the FPC is connected in the present embodiment. FIG. 15 is a perspective view showing the optical pickup device with the cover removed in the present embodiment.

  The optical component of the optical pickup device 100 is placed on the housing 2 (FIG. 4). A first heat radiating plate 41 and a second heat radiating plate 42 are placed on the housing 2. At this time, the first heat radiating plate 41 is engaged with the claw 215 and fixed to the housing 2. Thereafter, as described above, the FPC 7 and the rigid board 6 to which the fixing plate 500 is fixed are fixed to the housing 2. At this time, the FPC 800 is connected to the rigid substrate 6. The FPC 800 is a board for controlling the actuator 3. The actuator 3 is placed on the housing 2.

  Thereafter, the position of the front monitor diode 19 is adjusted inside the component installation hole 26 and then fixed to the housing 2. A cover 8 is placed on the housing 2. Then, the fixing screw 101 (FIG. 4) is inserted into the screw hole 83A, the screw hole 61A, and the screw hole 42A and screwed into the female screw 27. The cover 8, the rigid substrate 6, and the second heat radiating plate 42 are fixed to the housing 2 by screwing the fixing screw 101 to the female screw 27. At this time, the contact piece 83G (FIG. 9) of the cover 8 comes into contact with the terminal 63G (FIG. 14) of the rigid board 6. Therefore, the cover 8 is electrically connected to a predetermined terminal in the terminal 940 of the connector 900 via the contact piece 83G and the terminal 63G. At this time, as described above, there is an insertion opening between the end portion 85 (FIG. 12) of the cover 8 on the side where the flexible cable 102 is inserted and the end portion 64 of the rigid board 6 on the housing 2. 103 will be formed. Therefore, the insertion port 93 of the connector 900 communicates with the insertion port 103. That is, the cover 8 covers the housing 2 from the upper side of the connector 900 so that the insertion port 93 of the connector 900 can be seen from between the cover 8 and the housing 2.

  Here, for example, during the ESD test of the optical pickup device 100, the charge based on the air discharge of the ESD test device is supplied to the metal cover 8 without being supplied to the terminal 940. Therefore, for example, a relatively high voltage based on the discharge of the ESD test apparatus is supplied to the photodetector 13, the front monitor diode 19, and the like, thereby preventing a failure of the optical pickup apparatus 100. .

  Thereafter, the position of the photodetector 13 is adjusted inside the component installation hole 25 and then fixed to the housing 2.

  Thus, the optical pickup device 100 is assembled.

=== Attaching / detaching flexible cable ===
Hereinafter, the attachment / detachment of the flexible cable to / from the connector according to the present embodiment will be described with reference to FIGS. FIG. 16 is a plan view showing the operation jig and the optical pickup device in the present embodiment.

  For example, the case where the flexible cable 102 is attached to the connector 900 and the case where the flexible cable 102 is detached from the connector 900 will be described separately.

<When Flexible Cable 102 is Attached to Connector 900>
The tip of the operation jig 505 is inserted into the opening 84. The tip of the operation jig 505 is hooked on the edge of the main body 920 of the operation piece 92, and the operation piece 92 is rotated in the A2 direction (FIG. 13) about the rotation shaft 921. At this time, as described above, the flexible cable 102 can be attached to and detached from the terminal 940 of the connector 900. One end of the flexible cable 102 is interposed between the fixed piece 95 and the rotating piece 94 via the insertion port 103 between the end portion 85 of the cover 8 and the end portion 64 of the rigid board 6 and the insertion port 93 of the case 91. Inserted.

  Thereafter, for example, a part of the tip of the operation jig 505 is inserted into the gap 84A (FIG. 13). A part of the tip of the operation jig 505 is hooked on the edge of the main body 920, and the operation piece 92 is rotated about the rotation shaft 921 in the A1 direction (FIG. 12). At this time, as described above, one end of the flexible cable 102 is gripped by the end portion 942 of the rotating piece 94 and the end portion 952 of the fixed piece 95 and attached (locked) to the connector 900.

<When Flexible Cable 102 is Removed from Connector 900>
The tip of the operation jig 505 is inserted into the opening 84. The tip of the operation jig 505 is hooked on the edge of the main body 920 of the operation piece 92, and the operation piece 92 is rotated in the A2 direction (FIG. 13) about the rotation shaft 921. At this time, as described above, the flexible cable 102 can be attached to and detached from the connector 900 (the lock is released). Thereafter, one end of the flexible cable 102 is detached from the connector 900.

  As described above, the optical pickup device 100 includes the photodetector 13, the front monitor diode 19, the connector 900, the housing 2, and the cover 8. The connector 900 supplies a control signal from the flexible cable 102 to the photodetector 13 and the front monitor diode 19. The connector 900 includes an insertion port 93, a terminal 940, and an operation piece 92. One end of a flexible cable 102 that outputs a control signal for driving the optical pickup device 100 is inserted into the insertion port 93. One end of the flexible cable 102 inserted into the insertion port 93 is detachably connected to the terminal 940. The operation piece 92 is operated when the flexible cable 102 is attached to or detached from the terminal 940. In the housing 2, the photodetector 13, the front monitor diode 19, and the connector 900 are placed. The connector 900 is placed on the housing 2 such that the insertion direction in which one end of the flexible cable 102 is inserted into the insertion port 93 is parallel to the placement surface of the housing 2. The cover 8 covers the housing 2 from above the connector 900. The cover 8 has an opening 84 for operating the operation piece 92. The opening 84 is provided at a position where the operation piece 92 can be operated. An insertion port 103 for inserting one end of the flexible cable 102 into the insertion port 93 of the connector 900 is formed between the housing 2 and the cover 8. With these configurations, the terminal 940 of the connector 900 is covered by the cover 8. As described above, since the connector 900 is covered with the cover 8, the operation piece 92 cannot be easily operated with a fingertip or the like, for example. Therefore, for example, when the control signal is output from the flexible cable 102, it is possible to prevent the flexible cable 102 from being disconnected from the terminal 940 of the connector 900 due to the operation of the operation piece 92 by a fingertip or the like. Therefore, it is possible to provide the optical pickup device 100 that operates satisfactorily by securely connecting one end of the flexible cable 102 to the terminal 940 of the connector 900. Further, for example, during the ESD test of the optical pickup device 100, the electric charge based on the air discharge from the ESD test device is supplied to the metal cover 8 without being supplied to the terminal 940. During the ESD test, electric charges based on the air discharge from the ESD test apparatus are prevented from being supplied to the photodetector 13 and the front monitor diode 19 through the terminal 940. That is, the resistance to static electricity of the optical pickup device 100 can be improved. Further, the flexible cable 102 can be attached to and detached from the terminal 940 of the connector 900 without removing the cover 8. Therefore, it is possible to provide an easy-to-use optical pickup device 100 in which the flexible cable 102 can be easily attached and detached.

  The opening 84 is provided at a position facing the operation piece 92. With this configuration, for example, the operation piece 92 can be easily operated by the operation jig 505. Therefore, the usability of the optical pickup device 100 can be improved.

  The connector 900 has a long shape extending along a direction in which a plurality of terminals 940 are arranged adjacent to each other. The opening 84 is a long hole extending along the longitudinal direction of the connector 900. With these configurations, for example, the shape of the opening 84 corresponds to the shape of the connector 900. With these configurations, when the operation piece 92 is moved from the second position to the first position, the tip of the operation jig 505 having a relatively long width in the direction in which the operation piece 92 extends (X axis in FIG. 16) is provided. It can be brought into contact with the edge of the main body 920. Therefore, the force from the tip of the operation jig 505 is distributed and transmitted to the entire operation piece 920. Therefore, it is possible to prevent the force that moves the operation piece 92 from the second position to the first position from being concentrated on one point of the main body 920 and damaging the main body 920, for example. Therefore, the durability of the optical pickup device 100 can be improved. In addition, the area of the portion exposed through the opening 84 in the optical pickup device 100 can be made relatively small. Therefore, the resistance to static electricity of the optical pickup device 100 can be further improved.

  Further, the operation piece 92 moves to a first position where the operation piece 92 contacts the edge 843 around the opening 84 when the flexible cable 102 is attached to or detached from the terminal 940. The operation piece 92 moves to a second position away from the opening 84 when the flexible cable 102 is not attached to or detached from the terminal 940. The opening 84 has a second notch 844 at a part of the edge 843 for moving the operation piece 92 from the first position to the second position. For example, in a state where one end of the flexible cable 102 is connected to the terminal 940, the operation piece 92 is moved from the first position to the second position so that the one end of the flexible cable 102 is securely connected to the terminal 940. it can. Therefore, it is possible to prevent the flexible cable 102 from being disconnected from the terminal 940 of the connector 900 and to operate the optical pickup device 100 satisfactorily. Further, when the operation piece 92 is moved to the first position and contacts the edge 843 of the operation hole 84, for example, the fingertip is pressed against the second notch 844 to move the operation piece 92 from the first position to the second position. It can be easily moved to a position. Therefore, for example, after the flexible cable 102 is attached to the terminal 940 of the connector 900, the flexible cable 102 can be reliably fixed to the terminal 940 of the connector 900. Accordingly, it is possible to prevent the flexible cable 102 from being disconnected while the optical pickup device 100 is in operation. That is, the optical pickup device 100 can be reliably operated for a relatively long time.

  The second notch 844 has a shape into which a part of the tip of the operation jig 505 for moving the operation piece 92 from the first position to the second position is inserted. With this configuration, the operation of moving the operation piece 92 from the first position to the second position can be performed quickly and reliably. Therefore, it is possible to provide the optical pickup device 100 to which the flexible cable 102 can be attached quickly and reliably.

  The cover 8 is a grounded metal cover.

With this configuration, the hardness of the cover 8 can be increased. Therefore, for example, it is possible to prevent the operation piece 92 of the connector 900 from being operated due to the cover 8 being deformed by a fingertip or the like. Therefore, it is possible to prevent the flexible cable 102 from being disconnected from the terminal 940 of the connector 900 and to operate the optical pickup device 100 satisfactorily. Further, for example, the charge supplied to the cover 8 based on static electricity or the like is discharged to the ground. Therefore, electric charges based on static electricity or the like can be prevented from being supplied to the photodetector 13 and the front monitor diode 19 via the terminal 940 of the connector 900, and the resistance of the optical pickup device 100 to static electricity can be improved.

  The present embodiment is intended to facilitate understanding of the present invention, and is not intended to limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes equivalents thereof.

  In the present embodiment, the configuration in which the opening 84 is provided at a position facing the operation piece 92 has been described, but the present invention is not limited to this. For example, the opening 84 may be provided at a position relatively far from the connector 900. In this case, electric charges based on static electricity or the like can be further reliably prevented from being supplied to the terminal 940 of the connector 900 through the opening 84. Accordingly, the resistance of the optical pickup device 100 to static electricity can be improved.

  In the present embodiment, the configuration in which the operation piece 92 is provided on the side opposite to the insertion port 93 of the case 91 has been described. However, the present invention is not limited to this. For example, the operation piece 92 may be provided on the insertion port 93 side of the case 91.

  In the present embodiment, the configuration in which the operation piece 92 that is rotated in the A1 direction or the A2 direction is provided in the connector 900 has been described. However, the present invention is not limited to this. For example, when the flexible cable 102 is attached to or detached from the terminal 940 of the connector 900, from the direction (+ Y) approaching the case 91 along the direction in which the flexible cable 102 is attached or detached (the Y axis in FIG. 12) or from the case 91. An operation piece that is moved in the separating direction (-Y) may be provided on the connector 900. Further, for example, a push-pull switch that is pressed when the flexible cable 102 is attached to or detached from the terminal 940 of the connector 900 may be provided in the connector.

  Moreover, although the terminal 940 of the connector 900 demonstrated the structure arrange | positioned so that two or more may be adjacent, for example along a tangential direction (X-axis), it is not limited to this. For example, the terminals 940 may be arranged adjacent to each other in a curved shape corresponding to the shape of one end of the flexible cable 102.

  In the present embodiment, the optical pickup device 100 has been described. However, the present invention is not limited to this. For example, a cover corresponding to the cover 8 is provided for an electronic device other than the optical pickup device 100 having an exposed terminal and a connector to which a circuit board is attached and detached, thereby making the electronic device resistant to static electricity. It may be improved.

2 Housing 5 Optical disc 6 Rigid substrate 7, 800 FPC
8 Cover 13 Photodetector 19 Front monitor diode 84 Opening 92 Operation piece 93, 103 Insert 100 Optical pickup device 505 Operation jig 844 Second notch 900 Connector 940 Terminal

Claims (6)

Electronic components,
A first insertion port into which one end of a circuit board outputting a control signal for driving the electronic component is inserted; and a terminal to which one end of the circuit board inserted into the first insertion port is detachably connected. An operation unit for attaching and detaching the circuit board to and from the terminal, and a connector for supplying the control signal to the electronic component,
A housing on which the electronic component is mounted and the connector is mounted so that an insertion direction in which one end of the circuit board is inserted into the first insertion port is parallel to the mounting surface;
An operation hole for operating the operation unit is provided at a position where the operation unit can be operated, and a cover that covers the housing,
An optical pickup device, wherein a second insertion slot for inserting one end of the circuit board into the first insertion slot is formed between the housing and the cover. The optical pickup device according to claim 1, wherein the operation hole is provided at a position facing the operation unit. The connector has a long shape extending along a direction in which a plurality of the terminals are arranged adjacent to each other,
The optical pickup device according to claim 2, wherein the operation hole is a long hole extending along a longitudinal direction of the connector. The operation unit moves to a first position that contacts a part of the periphery of the operation hole when the circuit board is attached to or detached from the terminal, and when the circuit board is not attached to or detached from the terminal. Move to a second position away from the operating hole;
4. The optical pickup device according to claim 3, wherein the operation hole has a notch for moving the operation unit from the first position to the second position in a part of the periphery. The optical pickup device according to claim 4, wherein the notch has a shape into which an operation tool for moving the operation unit from the first position to the second position is inserted. The optical pickup device according to claim 1, wherein the cover is a metal cover that is grounded.

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