JP2006079716A - Optical pickup device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the lateral-direction dimension of an optical pickup device and to prevent the disconnection of the terminal line of a coil. <P>SOLUTION: The optical pickup device 10 is provided with: a movable part 12 having an objective lens 19 for converging a laser beam on the recording surface of an optical disk; support wires 35a to 35f with one end side fixed to a support substrate 30 and the other end side connected to the movable part 12 to thereby support the movable part 12; and coils 21a, 21b, 22a, 22b, and 23a to 23d disposed in the movable part 12. A connection substrate 26 is arranged on at least one side face of the movable part 12, the flat part 26c of each of the connection substrates 26a and 26b is provided with a fixed part for electrically connecting the support wires 35a to 35f, and coil terminal lines 21c, 21d, 22c, 22d, 23e, and 23f are connected to the side faces 26d and 26e of the connection substrates 26a and 26b, having surfaces vertical to the surface of the flat part 26c. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an optical pickup device used in an optical disc apparatus or the like that collects laser light with an objective lens on a recording surface of an optical disc, reads information recorded on the optical disc, or records information on the optical disc. .

  2. Description of the Related Art Conventionally, an optical disc apparatus that reads information recorded on an optical disc or records information on an optical disc is required to be small and thin. In order to reduce the size and thickness of such an optical disc device, the optical pickup device for driving the objective lens for condensing the laser light emitted from the light source and irradiating the optical disc on the optical disc device is also reduced. Is required.

  As shown in FIG. 16, the conventional optical pickup device 100 is provided with terminal lines 102, 103, and 104 of three drive coils arranged on the movable portion 101 of the optical pickup device 100 on both sides of the movable portion 101. The conductive substrate 106 is connected on the pad surface of the wiring board 105. In addition, a suspension wire 107 for supporting the movable portion 101 is also connected on the other pad surface by a conductive bonding material 108 on the plane of the wiring board 105.

  As another example of a conventional optical pickup device, there is known a device that holds a lens by penetrating four suspension wires through a fixing portion on the lens holder side, as in Patent Document 1.

  In the optical pickup device described in Patent Literature 1, one end of the suspension wire and the terminal of the drive coil disposed in the objective lens driving device are connected to the connection member provided on the side of the lens holder by a conductive adhesive. It is electrically connected by bonding. As described above, the suspension wire is bonded to the connection member by the conductive adhesive, thereby holding the objective lens driving device and being electrically connected to the terminal of the driving coil.

JP 2002-279661 A (FIGS. 1 to 3)

  In the conventional optical pickup device 100 shown in FIG. 16, wirings in which terminal wires 102, 103, 104 of the drive coil and one end of the suspension wire 107 are provided on the side of the movable portion 101 by the conductive adhesive materials 106, 108. The substrate 105 is bonded on the same plane. Therefore, the conductive fusion materials 106 and 108 for bonding the drive coil terminal wires 102, 103 and 104 and the suspension wire 107 to the movable portion 101, the drive coil terminal wires 102, 103 and 104, and the suspension wire 107. One end of each is disposed on the same plane of the wiring board 105.

  For this reason, when the optical pickup device 100 is driven, the suspension wire 107 comes into contact with the conductive fusion material 106 that bonds the terminal wires 102 and 104 of the drive coil, and there is a risk that drive abnormality occurs. Yes. Further, the contact causes a problem that the circuit is short-circuited. Further, if this contact is to be avoided, it becomes necessary to secure a wiring space in the wiring board 105, which causes a problem that the optical pickup device is increased in size. Furthermore, since the roots of the fixing portions of the terminal wires 102, 103, and 104 of the driving coil are greatly bent and fixed, the portions tend to be disconnected.

  The optical pickup device described in Patent Document 1 has a configuration in which the suspension wire passes through the fixed portion of the lens holder, and therefore, contact between the conductive fusing material and the suspension wire is avoided to some extent. However, due to the presence of the fixing portion for penetrating the suspension wire, the lateral direction of the apparatus becomes larger by the amount of the protrusion, and the size of the apparatus increases.

  The present invention has been made based on the above circumstances, and an object of the present invention is to provide an optical pickup device that can reduce the size in the lateral direction and hardly cause disconnection.

  In order to solve the above problems, the present invention provides a movable part having an objective lens for condensing laser light on the recording surface of an optical disk, one end of which is fixed to a support substrate, and the other end is a movable part. In the optical pickup device having a support member that supports the movable portion and a coil provided in the movable portion, a connection substrate is disposed on at least one side surface of the movable portion, and the connection substrate A fixed portion for electrically connecting the support member is provided on the flat surface portion of the coil, and the coil terminal wire is connected to the side surface portion of the connection board having a surface perpendicular to the surface of the flat surface portion. It is what has been.

  When configured in this manner, the terminal wire of the coil can be connected to the side surface portion that is the side surface of the connection substrate, and therefore it is not necessary to connect the terminal wire of the coil to the flat surface portion of the connection substrate. Therefore, since the contact portion of the coil terminal wire does not protrude from the planar portion of the connection board, a member such as a support wire serving as a support member can be brought close to the connection board, thereby reducing the lateral dimension of the device. Is possible. Moreover, a space is generated by eliminating the portion protruding from the flat portion, and the degree of freedom in designing the optical pickup device is improved. Moreover, since the terminal wire of a coil is connected in the side part of a connection board, the part which bend | curves large compared with the case where it connects in a plane part decreases, and it becomes difficult to disconnect.

  Further, in addition to the above-described invention, another invention is further provided with a recess for a terminal for electrically connecting the terminal wire of the coil by the conductive fusion material, and the fixing portion and the recess for the terminal. And the support member and the terminal wire of the coil are electrically connected to each other.

  When configured in this way, the conductive adhesive for connecting the terminal wire of the coil to the connection board does not exist in the plane portion of the connection board, and the conductive fusion material is not supported by other members such as a support member. No contact with the member. Therefore, the terminal wire of the coil and the support member are not short-circuited. Further, since the concave portion is provided, it is possible to prevent the conductive fusion material from flowing to other parts, and it is easy to hold the position of the terminal wire of the coil, and the fixing work is simplified.

  According to another invention, in addition to the above-described inventions, the planar portion of the connection board is provided with a recess for the terminal of the support member for electrically connecting the support member with the conductive adhesive. The supporting member and the terminal wire of the coil are electrically connected via the recessed portion for the terminal of the coil that can conduct electricity and the recessed portion for the terminal of the support member.

  When configured in this manner, both the terminal wire of the coil and the support member are bonded to the connection substrate at the concave portion, so that the conductive material for connecting the coil terminal wire and the support member to the connection substrate is used. The adhesive material does not exist on the flat portion of the connection substrate. Therefore, it is possible to reliably prevent the conductive fusion material for connecting the terminal wire of the coil to the connection substrate from coming into contact with the support member or the like. Moreover, since the support member is disposed in the terminal recess of the support member, the lateral dimension of the apparatus can be further reduced.

  Further, according to another invention, in addition to the above-described invention, the terminal recess is formed in a semicircular shape, a V shape, a U shape, a U shape, a slope shape, or an L shape. When comprised in this way, while being able to process the recessed part for terminals easily, the terminal of a coil and a supporting member can be easily adhere | attached on a connection board | substrate. In the case of the V-shape, the positioning of the terminal wire of the coil is particularly easy.

  Furthermore, in another invention, in addition to the above-described inventions, a pad is formed on the entire inner surface of the terminal recess.

  When comprised in this way, the terminal wire of a coil can be reliably connected with respect to a connection board | substrate so that electroconductivity is possible. That is, since the terminal recess has a certain length in the axial direction, the entire region becomes a conductive connection region, and a reliable conductive connection is possible.

  According to the present invention, it is possible to reduce the lateral dimension of the optical pickup device and to prevent the coil terminal wire from being disconnected.

  Hereinafter, an optical pickup device 10 according to a first embodiment of the present invention will be described with reference to FIGS. 1 is a perspective view showing a configuration of the optical pickup device 10, FIG. 2 is a view showing a side surface of the optical pickup device 10 of FIG. 1, (a) is a left side view thereof, and (b) is a left side view thereof. FIG. 3 is a perspective view of a connection substrate 26 used in the optical pickup device 10 of FIG. 1, and FIG. 4 is an enlarged view of a portion indicated by an arrow A in FIG. In the following description, the one end side means the upper left side in FIG. Further, the other end side means an obliquely lower right side in FIG. Further, in the following description, the lower left side in FIG. 1 is referred to as the left side, and the upper right side is referred to as the right side. 1 and 4 show a case where the conductive fusing materials 31 and 32 are not injected.

  As shown in FIGS. 1 and 2, the optical pickup device 10 includes a movable portion 12, a support substrate 30, and six support members that support the movable portion 12 so as to be movable with respect to the support substrate 30. The support wires 35a, 35b, 35c, 35d, 35e, and 35f are mainly configured. The optical pick-up device 10 is a device that records or reproduces information on or from an optical disc by condensing light with an objective lens 19 described later on a recording surface of an optical disc (not shown).

  The movable part 12 has a holder 14, and an objective lens 19 for condensing light on the recording surface of the optical disc is provided at the center of the holder 14. On both sides of the objective lens 19, two focus coils 21a and 21b for moving the movable part 12 in the focus direction (direction approaching or moving away from the optical disk surface), and the movable part 12 in the tilt direction (ZZ in FIG. 1). Two tilt coils 22a and 22b that are moved in the rotation direction about the axis are combined and arranged. Note that the ZZ axis is an axis that is orthogonal to the optical axis of the objective lens 19 from the vertical and horizontal centers of the movable portion 12 and extends in the longitudinal direction.

  Of the two focus coils, one focus coil 21 a is wound on the left side of the holder 14, thereby being disposed on the left side of the objective lens 19, and the other focus coil 21 b is wound on the right side of the holder 14. By being rotated, it is arranged on the right side of the objective lens 19. The focus coils 21a and 21b are formed of a single continuous wire, and are connected to the focus coil 21a from a terminal wire 21c fixed to one connection board 26a. Thereafter, the focus coil 21b is formed and connected to the other connection board 26b. Is done. The focus coils 21a and 21b are, for example, when viewed from above the optical axis of the objective lens 19, when the clockwise winding is normal and the counterclockwise winding is reverse, both are normal windings. It has become. In addition, the focus coils 21 a and 21 b are arranged so that the direction of the winding axis is the same as the optical axis of the objective lens 19.

  Similarly to the focus coils 21a and 22b, the tilt coils 22a and 22b are arranged such that one of the two tilt coils 22a and 22b is wound around the left side of the objective lens 19, and the other tilt coil. 22b is wound around the right side of the objective lens 19 and arranged. Further, the tilt coils 22a and 22b are made of a single continuous wire, and are connected to the tilt coil 22a from the terminal wire 22c connected to one connection board 26a, and then to the tilt coil 22b and to the other connection board 26b. Connected to. In the present embodiment, for example, the tilt coil 22a and the tilt coil 22b are arranged below the focus coil 21a and the focus coil 21b. The tilt coil 22a is forward wound, the tilt coil 22b is reverse wound, and the tilt coil 22a and the tilt coil 22b are wound in opposite directions. The direction of the winding axis of the tilt coils 22a and 22b is coaxial with the focus coils 21a and 21b.

  Two tracking coils 23 a and 23 d that are wound to move the movable portion 12 in the tracking direction (radial direction of the disk) are disposed on the side surface 14 a on the other end side of the holder 14. Also on the side surface 14b, two tracking coils 23b and 23c each having a winding shape are disposed. The four tracking coils 23a, 23b, 23c, and 23d are made of a single continuous wire, and are connected to the tracking coils 23a, 23b, 23c, and 23d from the terminal wire 22e connected to one of the connection boards 26a. The line 23f is connected to the other connection board 26b. The winding directions of the tracking coils 23a, 23b, 23c, and 23d are clockwise when the tracking coils 23a and 23c are viewed from the front, respectively, and counterclockwise when the tracking coils 23b and 23d are viewed from the front. It has become.

  Also, coil end wires 23e and 23f are drawn out from the tracking coils 23a and 23d, and the tracking coils 23a, 23b, 23c and 23d are tracked from the tracking coil 23a to the tracking coils 23b and 23c as described above. It is sequentially wound around 23d. The winding axes of the tracking coils 23a, 23b, 23c, and 23d are coaxial with the ZZ axis in FIG.

  Connection boards 26 a and 26 b are attached to the left and right sides of the holder 14. As shown in FIG. 3, the connection substrate 26a is a substrate having a rectangular planar shape, and surfaces 26d, 26e, 26f, and 26g that are perpendicular to the plane portion 26c corresponding to the substrate surface of the connection substrate 26a. Among them, a total of three side terminals 27a, 27b, and 27c that are cut into a semicircular shape are provided on the two side surfaces 26d and 26e corresponding to the left and right side surfaces in FIG. Are provided separately. The connection board 26b is symmetrical with the connection board 26a, and details thereof will be described later. Each of the side terminals 27a, 27b, and 27c is formed as a conductive terminal by forming a conductive pad on the entire concave inner peripheral surface.

  In addition, three plane fixing portions 28a, 28b, 28c are provided side by side from the side surface portion 26f to the side surface portion 26g at the approximate center of the plane portion 26c of the connection substrate 26a, and the side surface terminal 27a and the plane fixing portion 28a. The side terminal 27b and the plane fixing portion 28b, and the side terminal 27c and the plane fixing portion 28c are electrically connected by lands 29a, 29b, and 29c, respectively.

  3 is attached to the left side surface (hereinafter referred to as the left side surface) of the holder 14 in FIG. 1 as it is in the vertical direction (see FIG. 2A). 3 is attached to the right side surface (hereinafter referred to as the right side surface) of the holder 14 with the connection board 26a shown in FIG. 3 turned upside down to form the connection board 26b (see FIG. 2B). ).

  The terminal wire 21c of the focus coil 21a disposed in the movable portion 12 is connected to the side terminal 27a of the connection board 26a attached to the left side surface of the holder 14 by the conductive fusion material 31 so as to be conductive, and the tilt coil The terminal line 22c of 22a is connected to the side terminal 27c of the connection board 26a by the conductive fusion material 31 so as to be conductive. Further, the terminal wire 23e of the tracking coil 23a is connected to the side surface terminal 27b of the connection substrate 26a by the conductive fusion material 31 so as to be conductive. In the present embodiment, solder is used as the conductive fusing material 31.

  Further, the terminal board 21d of the focus coil 21b, the terminal line 22d of the tilt coil 22b, and the terminal line 23f of the tracking coil 23d are also connected to the right side surface of the holder 14 in the same manner as the connection to the connecting board 26a. 26b.

  Further, the terminal wires 21c, 21d, 22c, 22d, 23e, and 23f of the respective coils are connected to the side terminals 27a, 27c, 27c, 27a, 27b, and 27b, and the conductive fusion material 31 is connected to each of the side terminals 27a and 27c. 27c, 27a, 27b, and 27b are connected so as not to protrude from the recesses, so that the solder does not extend to the flat portion 26c of the connection boards 26a and 26b.

  The six support wires 35a, 35b, 35c, 35d, 35e, and 35f are conductive wires, and the elastic holding of the movable portion 12 and the electrical connection between the support substrate 30 and the connection substrates 26a and 26b. It is intended to do. One end of the support wires 35a, 35b, and 35c is fixed to the left side of the support substrate 30, and one end of the support wires 35d, 35e, and 35f is fixed to the right side of the support substrate 30, respectively. On the other hand, the other ends of the support wires 35a, 35b, and 35c are fixed to the left side surface of the movable portion 12, and the other ends of the support wires 35d, 35e, and 35f are fixed to the right side surface of the movable portion 12, respectively. Since each of the support wires 35a, 35b, 35c, 35d, 35e, and 35f can be bent, the movable portion 12 is not fixed to the support substrate 30, but can be moved.

  As described above, the other ends of the support wires 35a, 35b, and 35c are connected to the left side surface of the movable portion 12, respectively. That is, the other ends of the support wires 35a, 35b, and 35c are respectively connected to the plane fixing portions 28a, 28b, and 28c provided on the plane portion 26c of the connection substrate 26a, as shown in FIG. A conductive material 32 is connected to be conductive. Since it is comprised in this way, the electroconductive fusion material 32 in each connection part will protrude in the left direction in FIG. In the present embodiment, solder is used as the conductive fusing material 32.

  The plane fixing portions 28a, 28b, and 28c can be electrically connected to the side terminals 27a, 27b, and 27c through the lands 29a, 29b, and 29c, respectively. Further, the terminal wires 21c of the focus coil 21a, the terminal wires 23e of the tracking coil 23a, and the terminal wires 22c of the tilt coil 22a are respectively connected to the side terminals 27a, 27b, and 27c with respect to the longitudinal direction of the support wires 35a, 35b, and 35c. So as to be perpendicular to each other (including the case where the wires 35a, 35b, and 35c are slightly inclined with respect to the longitudinal direction). As described above, the support wires 35a, 35b, and 35c are electrically connected to the terminal wire 21c of the focus coil 21a, the terminal wire 22c of the tilt coil 22a, and the terminal wire 23e of the tracking coil 23a, respectively. Similarly to the support wires 35a, 35b, and 35c, the support wires 35d, 35e, and 35f are electrically connected to the terminal wire 21d of the focus coil 21b, the terminal wire 22d of the tilt coil 22b, and the terminal wire 23f of the tracking coil 23d, respectively. Has been.

  In the present embodiment, a permanent magnet (not shown) is arranged so as to face each tracking coil 23a, 23b, 23c, 23d in the ZZ axis direction. Further, in a direction perpendicular to the ZZ axis direction, a permanent magnet (not shown) is disposed so as to sandwich the left side portion of the movable portion 12 and to face the right side portion. The magnetic flux from these permanent magnets and the drive current applied to the focus coils 21a and 21b, the tilt coils 22a and 22b, and the tracking coils 23a, 23b, 23c, and 23d act, so that the movable part 12 has the focus direction, tilt It will be driven in the direction and tracking direction.

  In the optical pickup device 10 configured as described above, the coil terminal wires 21c, 22c and 23e and the coil terminal wires 21d, 22d and 23f are connected to the connection substrates 26a and 26b as shown in FIGS. Therefore, the conductive fusion material 31 for this connection does not protrude from the connection substrates 26a and 26b. For this reason, the risk that the support wires 35a, 35b, 35c, 35d, 35e, and 35f come into contact with the conductive fusion material 31 for the terminal wires 21c, 21d, 22c, 22d, 23e, and 23f of each coil is reduced, and the support is performed. The wires 35a, 35b, 35c, 35d, 35e, and 35f can be brought close to the connection substrates 26a and 26b. Therefore, the horizontal dimension of the optical pickup device 10 can be reduced. Further, when the lateral dimensions are the same as the conventional dimensions, the space between the support wires 35a, 35b, 35c, 35d, 35e, and 35f and the connection substrates 26a and 26b can be increased. The degree of freedom in designing the device 10 is improved. Further, the conductive fusion material 32 is reduced as compared with the conventional structure in which a large amount of the conductive fusion material 32 is used to save space, the weight of the optical pickup device 10 is reduced, and the sensitivity of the optical pickup device 10 is improved. It will be. Furthermore, since the coil terminal wires 21c, 22c, and 23e and the coil terminal wires 21d, 22d, and 23f are connected on the side surfaces of the connection boards 26a and 26b, the portions that are largely bent do not exist and are difficult to be disconnected.

  The coil terminal wires 21c, 22c, and 23e and the coil terminal wires 21d, 22d, and 23f are connected by the side surface portions 26d and 26e of the connection boards 26a and 26b, and are used for connection of the coil terminal wires. The conductive fusion material 31 does not exist on the flat portions 26c and 26c of the connection substrates 26a and 26b. Therefore, the risk that the conductive fusing material 31 comes into contact with the support wires 35a, 35b, 35c, 35d, 35e, and 35f is greatly reduced. As a result, the occurrence of malfunction due to contact is reduced, and there is a risk that the terminal wires 21c, 22c, 23e, 21d, 22d, and 23f of each coil and the support wires 35a, 35c, 35b, 35d, 35f, and 35e are short-circuited. Decrease. Further, since the side terminals 27a, 27c, and 27b are provided with recesses, the conductive fusion material 31 can be prevented from flowing to other parts, and the coil terminal wires 21c, 21d, 22c, The positions 22d, 23e, and 23f can be easily held, and the fixing work is simplified.

  In the optical pickup device 10, the side terminals 27a, 27b, and 27c have a simple shape such as a semicircle. Therefore, the side terminals 27a, 27b, and 27c can be easily processed. For example, a through hole having a circular cross section (through hole) is formed in the substrate, a conductive member is attached to the inner peripheral surface of the through hole, and then the substrate is cut so as to cross the through hole to form the connection substrates 26a and 26b. can do. In addition, since it has a semicircular shape, the coil terminal wires 21c, 22c, and 23e and the coil terminal wires 21d, 22d, and 23f are easily bonded to the connection substrates 26a and 26b.

  Further, in the optical pickup device 10, the side terminals 27a, 27b, and 27c are separated into opposing side surfaces of the connection boards 26a and 26b, that is, two side terminals 27a and 27c are provided on one side and one is provided on the other side. The side terminals 27b are provided. Accordingly, the coil terminal wires 21c, 22c, and 23e and the coil terminal wires 21d, 22d, and 23f are separately connected to the side surfaces of the connection boards 26a and 26b, and thus the coil terminal wires 21c, 22c, and 23e are connected. , And the terminal wires 21d, 22d, and 23f of the coil are reduced in contact with each other. Further, by dispersing the connection of the coil terminal wires 21c, 22c, and 23e and the coil terminal wires 21d, 22d, and 23f, the connection boards 26a and 26b can be effectively used, and the connection boards 26a and 26b can be made compact. Can be realized.

  Further, in the optical pickup device 10, the terminal wires 21c, 22c, 23e, 21d, 22d, and 23f of each coil are arranged in a direction orthogonal to the longitudinal direction of the support wires 35a, 35c, 35b, 35d, 35f, and 35e. In addition, the conductive fusing material 31 injected into the side terminals 27a, 27b, and 27c is prevented from protruding from the concave portions of the side terminals 27a, 27b, and 27c. Therefore, the terminal wires 21c, 22c, 23e, 21d, 22d, and 23f of the coil are in contact with the side terminals 27a, 27b, and 27c of the connection boards 26a and 26b in a wide area, that is, a length portion having the width W shown in FIG. Can be fixed firmly. Further, since the conductive fusion material 31 is prevented from projecting from the side terminals 27a, 27b, and 27c to the flat portion 26 side, there is a risk of contact with the support wires 35a, 35b, 35c, 35d, 35e, and 35f. And the lateral dimension of the optical pickup device 10 can be reduced.

  Further, in the optical pickup device 10, pads are formed on the entire inner peripheral surfaces of the side terminals 27a, 27b, and 27c in the connection substrates 26a and 26b. Therefore, the contact area between the coil terminal wires 21c, 22c, 23e, 21d, 22d, and 23f and the side terminals 27a, 27b, and 27c increases, and the coil terminal wires 21c, 22c, 23e, 21d, 22d, and 23f are connected. It can be reliably connected to the substrates 26a and 26b. That is, since the side terminals 27a, 27b, and 27c have a width W corresponding to the length in the axial direction, the entire region becomes a conductive connection region, and reliable conductive connection is possible.

  Next, an optical pickup device 40 according to a second embodiment of the present invention will be described with reference to FIGS. 5 is a perspective view showing a configuration of the optical pickup device 40, FIG. 6 is a view showing a side surface of the optical pickup device 40 of FIG. 5, (a) is a left side view thereof, and (b) is a side view thereof. FIG. 7 is a perspective view of a connection substrate 42 used in the optical pickup device 40, and FIG. 8 is an enlarged view of a portion indicated by an arrow B in FIG. The same members and the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted or simplified. Since the second embodiment has the same configuration as that of the first embodiment, differences from the first embodiment will be mainly described. Further, in FIG. 5, one end side indicates an upper left oblique direction, and the other end side indicates an oblique lower right direction. Further, in the following description, the lower left side in FIG. 5 is referred to as the left side, and the upper right side is referred to as the right side. 5 and 8 show a case where the conductive fusing materials 31 and 32 are not injected.

  As in the case of the first embodiment, as shown in FIGS. 5 and 6, in the optical pickup device 40, the movable portion 12, the support substrate 30, and the movable portion 12 can move relative to the support substrate 30. It consists mainly of six support wires 35a, 35b, 35c, 35d, 35e, and 35f that are supported so as to become. The movable part 12 has a holder 14, and an objective lens 19 is provided at the center of the holder 14. Similarly to the first embodiment, the holder 14 is provided with two focus coils 21a and 21b, two tilt coils 22a and 22b, and four tracking coils 23a, 23b, 23c, and 23d. Yes.

  Connection boards 42 a and 42 b corresponding to the connection boards 26 a and 26 b of the first embodiment are attached to the left and right sides of the holder 14. As shown in FIG. 7, the connection substrate 42 a has a shape in which a pair of top portions of a substrate having a rectangular plane are cut out obliquely. Further, a pad is formed on the entire surface of the notched portion, and the portion forms slope terminals 44a and 44b. On the side surface between the slope terminals 44a and 44b, there is provided a side terminal 45 that is cut out in a semicircular shape. Pads are also formed on the entire inner periphery of the side terminal 45.

  Further, the plane portion 42c of the connection substrate 42a is provided with three plane fixing portions 47a, 47b, 47c arranged side by side from the side surface portions 42d to 42e, and the slope terminal 44a and the plane fixing portion 47a, and the side surface terminal 45 and the plane fixing portion are fixed. The portion 47b, the slope terminal 44b, and the plane fixing portion 47c are electrically connected by lands 48a, 48b, and 48c, respectively. As in the case of the first embodiment, the connection board 42a is attached to the left side surface of the holder 14 (hereinafter referred to as the left side) with the connection board 42a shown in FIG. 6 (see FIG. 6A), and attached to the right side surface (hereinafter referred to as the right side surface) of the holder 14 with the connection board 42a shown in FIG. 7 turned upside down to form the connection board 42b. (See FIG. 6 (b)).

  In the optical pickup device 40, the terminal wire 21c of the focus coil 21a is connected to the slope terminal 44a of the connection board 42a attached to the left side surface of the holder 14 by the conductive fusion material 31 so as to be conductive, and the tilt coil 22a. The terminal wire 22c is connected to the side terminal 45 of the connection substrate 42a by the conductive fusion material 31 so as to be conductive. The terminal wire 23e of the tracking coil 23a is connected to the slope terminal 44b of the connection substrate 42a by the conductive fusion material 31 so as to be conductive. Also in the present embodiment, solder is used as the conductive adhesive 31 as in the case of the first embodiment.

  Further, the terminal board 21d of the focus coil 21b, the terminal line 22d of the tilt coil 22b, and the terminal line 23f of the tracking coil 23d are also connected to the right side surface of the holder 14 as in the case of connection to the connecting board 42a. 42b. The coil terminal wires 21c, 22c, and 23e and the coil terminal wires 21d, 22d, and 23f are provided on the side surfaces of the connection boards 42a and 42b, the slope terminal 44a, the side terminal 45, the slope terminal 44b, the slope terminal 44b, and the side surface. Since the terminal 45 and the slope terminal 44a are connected to each other, the conductive fusion material 31 does not extend to the flat portions 42c and 42c of the connection substrates 42a and 42b.

  Also in the present embodiment, as in the case of the first embodiment, the movable portion 12 is supported by six conductive support wires 35a, 35b, 35c, 35d, 35e, and 35f, One end thereof is fixed to the support substrate 30, and the other end is fixed to flat fixing portions 47a, 47b, 47c, 47c, 47b, 47a provided on the substrates of the connection substrates 42a, 42b, respectively, as shown in FIG. The conductive fusion material 32 is conductively connected. Also in this embodiment, solder is used as the conductive fusing material 32. Here, the other ends of the support wires 35a, 35b, 35c, 35d, 35e, and 35f are bonded to the flat portions 42c and 42c of the connection substrates 42a and 42b by the conductive fusion material 32, respectively. The conductive adhesive material 32 in the portion protrudes in the left and right side directions in FIG.

  Also in the present embodiment, as in the first embodiment, the terminal wires 21c, 22c, 23e, 21d, 22d, and 23f of the coils are supported by the support wires 35a and 35b via the connection substrates 42a and 42b. , 35c, 35d, 35e, and 35f, respectively. Further, by disposing a permanent magnet (not shown) in the same manner as in the first embodiment, the movable portion 12 is driven in the focus direction, the tilt direction, and the tracking direction.

  In the optical pickup device 40 configured as described above, the coil terminal wires 21c, 22c, and 23e and the coil terminal wires 21d, 22d, and 23f are connected only on one side surface of the connection substrates 42a and 42b. On the side where the support wires 35a, 35b, 35c, 35d, 35e, and 35f are present, the conductive fusion bonding 31 does not exist at all. Therefore, the conductive fusion material 31 does not come into contact with the support wires 35a, 35b, 35c, 35d, 35e, and 35f. Therefore, since the support wires 35a, 35b, 35c, 35d, 35e, and 35f can be brought close to the connection substrates 42a and 42b, the horizontal dimension of the optical pickup device 40 can be reduced. Further, since members other than the support wires 35a, 35b, 35c, 35d, 35e, and 35f can be brought close to the substrates 42a and 42b, the lateral direction of the entire apparatus can be reduced.

  Moreover, a space is generated by eliminating the protruding portion, and the degree of freedom in designing the optical pickup device 40 is improved. Further, as the amount of the conductive fusion material 32 is reduced, the optical pickup device 40 is reduced in weight, and the sensitivity of the optical pickup device 40 is improved. Furthermore, since the coil terminal wires 21c, 22c, and 23e and the coil terminal wires 21d, 22d, and 23f are connected on the side surfaces of the connection boards 42a and 42b, there are no portions that are largely bent, making it difficult to disconnect.

  In the optical pickup device 40, the connection board 42 is provided with slope terminals 44a and 44b and side terminals 45. The slope terminals 44a and 44b and the side terminals 45 are formed by obliquely cutting a pair of rectangular tops. It has a simple shape such as a missing shape and a semi-circle. Therefore, the slope terminals 44a and 44b and the side terminal 45 can be easily processed. Further, the coil terminal wires 21c, 22c, and 23e and the coil terminal wires 21d, 22d, and 23f are arranged along the slope terminals 44a, 44b and the side terminals 45, and then the connection substrate is formed by the conductive fusion material 31. Bonding is possible by a simple operation of bonding to 42a and 42b.

  Further, in the optical pickup device 40, pads are formed on the entire inner peripheral surfaces of the slope terminals 44a and 44b and the side terminals 45 in the connection substrates 42a and 42b. Therefore, the contact area between the coil terminal wires 21c, 22c, 23e and the coil terminal wires 21d, 22d, 23f and the terminals 44a, 45, 44b and the terminals 44b, 45, 44a is increased, and the coil terminal wires 21c, 22c are increased. 23e and coil terminal wires 21d, 22d, and 23f can be reliably connected to the connection substrates 42a and 42b in a conductive manner.

  Next, an optical pickup device 60 according to a third embodiment of the present invention will be described with reference to FIGS. 9 is a perspective view showing a configuration of the optical pickup device 60, FIG. 10 is a view showing a side surface of the optical pickup device 60 of FIG. 9, (a) is a left side view thereof, and (b) is a left side view thereof. FIG. 11 is a perspective view of a connection substrate 62 used in the optical pickup device 60, and FIG. 12 is an enlarged view of a portion indicated by an arrow C in FIG. The same members and the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted or simplified. Since the third embodiment has the same configuration as that of the first embodiment, differences from the first embodiment will be mainly described. In FIG. 9, one end side refers to the upper left side and the other end side refers to the lower right side. Further, in the following description, the lower left side in FIG. 9 is referred to as the left side, and the upper right side is referred to as the right side. 9 and 12 show a case where the conductive fusing materials 31 and 32 are not injected.

  As in the case of the first embodiment, in the optical pickup device 60, as shown in FIGS. 9 and 10, the movable portion 12, the support substrate 30, and the movable portion 12 can move relative to the support substrate 30. It consists mainly of six support wires 35a, 35b, 35c, 35d, 35e, and 35f that are supported so as to become. The movable part 12 has a holder 14, and an objective lens 19 is provided at the center of the holder 14. Similarly to the first embodiment, the holder 14 is provided with two focus coils 21a and 21b, two tilt coils 22a and 22b, and four tracking coils 23a, 23b, 23c, and 23d. Yes.

  As in the first embodiment, connection boards 62a and 62b are attached to the left and right sides of the holder 14, respectively. As shown in FIG. 11, the connection substrate 62a has a shape in which a pair of top portions of a rectangular substrate are cut out in an L shape. Further, a pad is formed on the entire surface of the notched portion, and L-shaped terminals 64a and 64b are formed. A U-shaped terminal 65 cut out in a U-shape is provided on a side surface between the L-shaped terminals 64a and 64b. In addition, three side surface fixing portions 67a, 67b, 67c are arranged side by side from the side surface portion 62d to the side surface portion 62e on the flat surface portion 62c of the connection substrate 62a. The L-shaped terminal 64a, the flat surface fixing portion 67a, and the U-shaped terminal 65 are provided. The flat surface fixing portion 67b and the L-shaped terminal 64b and the flat surface fixing portion 67c are electrically connected by lands 68a, 68b and 68c, respectively. As in the case of the first embodiment, the connection board 62a is attached to the left side surface (hereinafter referred to as the left side face) of the holder 14 with the connection board 62a shown in FIG. 11 (see FIG. 10A), the connection substrate 62b is formed by attaching the connection substrate 62a shown in FIG. 11 upside down to the right side surface (hereinafter referred to as the right side surface) of the holder 14. (See FIG. 10B).

  In the optical pickup device 60, the terminal wire 21 c of the focus coil 21 a is connected to the L-shaped terminal 64 a of the connection substrate 62 a attached to the left side surface of the holder 14 by the conductive fusion material 31 so as to be conductive. The terminal line 22c of 22a is connected to the U-shaped terminal 65 of the connection board 62a by the conductive fusion material 31 so as to be conductive. The terminal wire 23e of the tracking coil 23a is connected to the L-shaped terminal 64b of the connection substrate 62a by the conductive fusion material 31 so as to be conductive. Also in the present embodiment, solder is used as the conductive adhesive 31 as in the case of the first embodiment.

  Further, the terminal board 21d of the focus coil 21b, the terminal line 22d of the tilt coil 22b, and the terminal line 23f of the tracking coil 23d are also connected to the right side surface of the holder 14 in the same manner as the connection to the connecting board 62a. 62b. Also in the present embodiment, the coil terminal wires 21c, 22c, and 23e and the coil terminal wires 21d, 22d, and 23f are provided on the side surfaces of the connection boards 62a and 62b. Since the L-shaped terminal 64b, the L-shaped terminal 64b, the U-shaped terminal 65, and the L-shaped terminal 64a are connected to each other, the conductive fusion material 31 extends to the flat portions 62c and 62c of the connection substrates 62a and 62b. There will be nothing.

  Also in the present embodiment, as in the case of the first embodiment, the movable portion 12 is supported by six conductive support wires 35a, 35b, 35c, 35d, 35e, and 35f, One end is fixed to the support substrate 30, and the other end is fixed to the plane fixing portions 67a, 67b, 67c, 67c, 67b provided on the plane portions 63c, 63c of the connection substrates 62a, 62b, respectively, as shown in FIG. , 67a are electrically connected by a conductive fusing material 32. Also in this embodiment, solder is used as the conductive fusing material 32. Here, the other ends of the support wires 35a, 35b, 35c, 35d, 35e, and 35f are bonded to the flat portions 62c and 62c of the connection substrates 62a and 62b by the conductive fusion material 32, respectively. The conductive adhesive material 32 in the portion protrudes in the left and right side directions in FIG.

  Also in the present embodiment, similarly to the first embodiment, the terminal wires 21c, 22a, 23e, 21d, 22b, and 23f of the coils are connected to the support wires 35a and 35b via the connection substrates 62a and 62b. , 35c, 35d, 35e, and 35f, respectively. Further, by disposing a permanent magnet (not shown) in the same manner as in the first embodiment, the movable portion 12 is driven in the focus direction, the tilt direction, and the tracking direction.

  In the optical pickup device 60 configured as described above, the coil terminal wires 21c, 22c, and 23e and the coil terminal wires 21d, 22d, and 23f are connected to each other on one side surface of the connection substrates 62a and 62b. On the side where the wires 35a, 35b, 35c, 35d, 35e, and 35f are present, the conductive fusion bonding 31 does not exist at all. Therefore, the conductive fusion material 31 does not come into contact with the support wires 35a, 35b, 35c, 35d, 35e, and 35f. Therefore, since the support wires 35a, 35b, 35c, 35d, 35e, and 35f can be brought close to the connection substrates 62a and 62b, the horizontal dimension of the optical pickup device 60 can be reduced. Moreover, since members other than the support wires 35a, 35b, 35c, 35d, 35e, and 35f can be brought close to the substrates 62a and 62b, the lateral direction of the entire apparatus can be reduced.

  Further, since the protruding portion is eliminated, a space is generated and the degree of freedom in designing the optical pickup device 60 is improved. Further, as the amount of the conductive fusion material 32 is reduced, the optical pickup device 60 is reduced in weight, and the sensitivity of the optical pickup device 60 is improved. Furthermore, since the coil terminal wires 21c, 22c, and 23e and the coil terminal wires 21d, 22d, and 23f are connected on the side surfaces of the connection substrates 62a and 62b, there are no portions that are largely bent, making it difficult to disconnect.

  Further, in the optical pickup device 60, the connection board 62 is provided with L-shaped terminals 64a and 64b and a U-shaped terminal 65. The L-shaped terminals 64a and 64b and the U-shaped terminal 65 are a pair of rectangular top portions. Has a simple shape such as an L-shaped shape and a U-shaped shape. Therefore, the L-shaped terminals 64a and 64b and the U-shaped terminal 65 can be easily processed. Furthermore, the coil terminal wires 21c, 22c, and 23e and the coil terminal wires 21d, 22d, and 23f are arranged along the L-shaped terminals 64a, 64b and the U-shaped terminal 65, and then the conductive fusion material 31 is used. Bonding is possible by a simple operation of bonding to the connection substrates 62a and 62b.

  Further, in the optical pickup device 60, pads are formed on the entire surfaces of the L-shaped terminals 64a and 64b and the U-shaped terminal 65 in the connection substrates 62a and 62b. Therefore, the contact area between the coil terminal wires 21c, 22c and 23e and the coil terminal wires 21d, 22d and 23f and the terminals 64a, 65 and 64b and the terminals 64b, 65 and 64a increases, and the coil terminal wires 21c and 22c. , 23d and the terminal wires 21d, 22d, and 23f of the coil can be reliably connected to the connection substrates 62a and 62b in a conductive manner.

  Next, an optical pickup device 80 according to a fourth embodiment of the present invention will be described with reference to FIGS. 13 is a perspective view showing a configuration of the optical pickup device 80, FIG. 14 is a view showing a side surface of the optical pickup device 80 of FIG. 13, (a) is a left side view thereof, and (b) is a side view thereof. FIG. FIG. 15 is a perspective view of a connection board 82 used in the optical pickup device 80. The same members and the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted or simplified. Since the fourth embodiment has the same configuration as that of the first embodiment, differences from the first embodiment will be mainly described. In FIG. 13, one end side indicates an upper left oblique direction, and the other end side indicates an oblique lower right direction. In the following description, the lower left diagonal in FIG. 13 is referred to as the left side, and the upper right diagonal is referred to as the right side. FIG. 13 shows a case where the conductive fusing materials 31 and 32 are not injected.

  As in the case of the first embodiment, the optical pick-up device 80 is movable with respect to the movable portion 12, the support substrate 30, and the support substrate 30, as shown in FIGS. It consists mainly of six support wires 35a, 35b, 35c, 35d, 35e, and 35f that are supported so as to become. The movable part 12 has a holder 14, and an objective lens 19 is provided at the center of the holder 14. Similarly to the first embodiment, the holder 14 is provided with two focus coils 21a and 22b, two tilt coils 22a and 22b, and four tracking coils 23a, 23b, 23c, and 23d. Yes.

  Connection boards 82a and 82b are attached to the left and right sides of the holder 14 as in the case of the first embodiment. The connection boards 82a and 82b are rectangular boards as shown in FIG. 15, and support wires 35a, 35b, and 35c or support wires 35d, 35e, and 35f are engaged with one end side of the flat surface portion 82c. Recesses 84a, 84b, 84c for the support members for the purpose are provided in order from the side surface portion 82d toward the side surface portion 82e. In FIG. 15, the terminal recesses 84a, 84b, 84c of the support member are provided on one end side of the flat portion 82c of the connection substrates 82a, 82b, respectively, and have a shape that is cut out so that the cross section thereof becomes a U-shape. is doing. In addition, three side terminals 85a, 85b, 85c, which are cut out in a semicircular shape on the side surface on the other end side of the connection boards 82a, 82b, are sequentially provided from the side surface portion 82d toward the side surface portion 82e. Is provided.

  The terminal recess 84a and the side terminal 85a of the support member, the terminal recess 84b and the side terminal 85b of the support member, and the terminal recess 84c and the side terminal 85c of the support member can be electrically conducted by the lands 87a, 87b, and 87c, respectively. It is connected. Further, pads are formed on the entire surface of the terminal recesses 84a, 84b, 84c and the side terminals 85a, 85b, 85c of the support member, and the terminal recesses 84a, 84b, 84c and the side terminals 85a, Reference numerals 85b and 85c are conductive terminals.

  As in the case of the first embodiment, the connection substrate 82a is attached to the left side surface of the holder 14 (hereinafter referred to as the left side surface) with the connection substrate 82a shown in FIG. 15 (see FIG. 14A), and attached to the right side surface of the holder 14 (hereinafter referred to as the right side surface) with the connection board 82a shown in FIG. 15 turned upside down to form the connection board 82b. (See FIG. 14B).

  In the optical pickup device 80, the terminal wire 21c of the focus coil 21a, the terminal wire 22c of the tilt coil 22a, and the terminal wire 23e of the tracking coil 23a are connected to the side terminals 85a, 85b of the connection board 82a attached to the left side surface of the holder 14. 85c is connected to each other by the conductive fusing material 31 so as to be conductive. Also in the present embodiment, solder is used as the conductive adhesive 31 as in the case of the first embodiment. Also, the terminal line 21d of the focus coil 21b, the terminal line 22d of the tilt coil 22b, and the terminal line 23f of the tracking coil 23d are connected to the connection board 82a, and the connection board 82b attached to the right side surface of the holder 14 is used. It is connected to the.

  Also in the present embodiment, as in the case of the first embodiment, the movable portion 12 is supported by six conductive support wires 35a, 35b, 35c, 35d, 35e, and 35f, One end thereof is fixed to the support substrate 30, and the other end is provided with recesses 84a, 84b, 84c for terminal of support members provided on the side surface portions 83c, 83c of the connection substrates 82a, 82b, respectively, as shown in FIG. The conductive member 32 is connected to the terminal recesses 84c, 84b, 84a of the support member so as to be conductive. Also in this embodiment, solder is used as the conductive fusing material 32. In the present embodiment, the coil terminal wires 21c, 22c, and 23e and the coil terminal wires 21d, 22d, and 23f are provided with side terminals 85a, 85b, and 85c and side terminals provided on the side surfaces of the connection boards 82a and 82b. 85c, 85b, and 85a are connected to the side surfaces of the connection substrates 82a and 82b, respectively, and the support wires 35a, 35b, and 35c and the support wires 35d, 35e, and 35f are also terminal recesses 84a, 84b, and 84c of the support member and the support member. The terminal recesses 84c, 84b, and 84a are connected so as to engage with the recesses. Therefore, the conductive fusing materials 31 and 32 do not protrude from the flat portions 82c and 82c of the connection substrates 82a and 82b.

  Also in the present embodiment, similarly to the first embodiment, the coil terminal wires 21c, 22c, 23e, 21d, 22d, and 23f are connected to the support wires 35a, 35b, and the connection wires 82a and 82b, respectively. 35c, 35d, 35e, and 35f are electrically connected to each other. Further, by disposing a permanent magnet (not shown) in the same manner as in the first embodiment, the movable portion 12 is driven in the focus direction, the tilt direction, and the tracking direction.

  In the optical pickup device 80 configured as described above, the coil terminal wires 21c, 22c, and 23e and the coil terminal wires 21d, 22d, and 23f are connected to the side surfaces of the connection substrates 82a and 82b, and the support wire 35a. , 35b, 35c and the supporting wires 35d, 35e, 35f are connected in such a manner as to be engaged with the concave portions 84a, 84b, 84c for the terminal of the supporting member and the concave portions 84c, 84b, 84a for the terminal of the supporting member, respectively. ing. For this reason, both the conductive fusion materials 31 and 32 do not protrude from the flat portions 82c and 82c of the connection substrates 82a and 82b, and the conductive fusion material 31 does not support the wires 35a, 35b, 35c, 35d, and 35e. , 35f etc. can be reliably prevented.

  Further, since there is a space in the vicinity of the flat portions 82c and 82c of the connection boards 82a and 82b, and other members can be brought close to the connection boards 82a and 82b, the lateral dimension of the optical pickup device 80 is reduced. Is possible. In addition, due to the generation of this space, the degree of freedom in designing the optical pickup device 80 is improved. Further, the amount of the conductive fusing material 32 can be reduced, the optical pickup device 80 is reduced in weight, and the sensitivity of the optical pickup device 80 is improved. Furthermore, since the coil terminal wires 21c, 22c, and 23e and the coil terminal wires 21d, 22d, and 23f are connected on the side surfaces of the connection substrates 82a and 82b, there are no portions that are largely bent, making it difficult to disconnect.

  Further, in the optical pickup device 80, pads are formed on the entire inner surfaces of the side terminals 85a, 85b, 85c in the connection substrates 82a, 82b. Therefore, the contact area between the coil terminal wires 21c, 22c, and 23e and the coil terminal wires 21d, 22d, and 23f and the terminals 85a, 85b, and 85c and the terminals 85c, 85b, and 85a is increased, and the coil terminal wires 21c, 22c are increased. , 23e and the terminal wires 21d, 22d, and 23f of the coil can be reliably connected to the connection substrates 82a and 82b in a conductive manner.

  As mentioned above, although each embodiment of this invention was described, this invention can be variously deformed besides this. This will be described below.

  In each of the above-described embodiments, the holder 14 includes a total of eight coils including the focus coils 21a and 21b, the tilt coils 22a and 22b, and the tracking coils 23a, 23b, 23c, and 23d. May be omitted, or a single focusing coil may be used. That is, the number of coils is not limited to eight, but may be seven or less, or nine or more. The focus coil, tilt coil, and tracking coil may be formed by winding or a film coil that forms a coil pattern on a film.

  Moreover, in each above-mentioned embodiment, although the movable part 12 is supported by a total of six support wires 35a, 35b, 35c, 35d, 35e, and 35f, it is arrange | positioned at the holder 14 without restricting to this. Corresponding to the number of coils, the number of support wires may be 4 in total, 2 left and right, or 8 in total, 4 left and right. Moreover, you may make it add one or more support wires which hold only other than the support wire for electroconductivity. Thus, the number of support wires may be 5 or less, or may be 7 or more.

  In the above-described embodiment, the tilt coil 22a is disposed below the focus coil 21a in the two focus coils 21a and 21b and the two tilt coils 22a and 22b disposed on both sides of the objective lens 19, and the focus coil 21b. The tilt coil 22b is arranged below the combination. However, the present invention is not limited to this, and the tilt coils 22a and 22b may be arranged above the focus coils 21a and 21b, respectively, or the tilt coils 22a and 22b may be arranged inside the focus coils 21a and 21b, respectively. Anyway. Further, the tilt coils 22a and 22b may be arranged outside the focus coils 21a and 21b, respectively.

  Further, in each of the above-described embodiments, the clockwise winding as viewed from above in FIG. 1 is the forward winding, and the counterclockwise winding is the reverse winding. The winding in the direction is reversed, the winding in the counterclockwise direction is forward, and the winding direction of each coil 21a, 21b, 22a, 22b is reversed from that in the above-described embodiments. You may do it. Similarly, the winding methods of the coils 23a, 23b, 23c, and 23d may be reversed.

  Further, in each of the above-described embodiments, each side terminal has a semicircular cross section, an inclined shape, an L-shape, or a U-shape, but is not limited thereto. V-shape or semi-elliptical shape. In each embodiment, all the side terminals adopt the configuration of the present invention, but the configuration of the present invention may be applied to some side terminals such as one or two.

  Further, in each of the above-described embodiments, pads are formed on the entire inner peripheral surface and the entire terminal surface of the side terminals 27a, 27b, 27c, 44a, 44b, 45, 64a, 64b, 65, 85a, 85b, and 85c. However, the pad may be formed not only on the entire surface but also on one portion. In each of the above-described embodiments, the connection boards disposed on both sides of the objective lens 19 are symmetric with respect to the ZZ axis. However, the connection boards on both sides may have different shapes, It may be a conventional shape.

  Further, in the second embodiment described above, the side terminal is constituted by a mixed state of the slope-type and semicircular side terminals 44a, 44b, 45, and in the third embodiment, the L-shaped and the U-shaped. The side terminals 64a, 64b, and 65 are mixed, but the side terminals are not limited to the mixed state of these different shapes, and the side terminals are semicircular, V-shaped, U-shaped, U-shaped, and slope-shaped. Or you may make it comprise only one type of L-shaped shape. Moreover, it is good also as any 2 or 3 hybrid state structure of these shapes.

  Further, in the above-described fourth embodiment, the terminal recesses 84a, 84b, 84c of the support member are provided in the side surface portion 83c of the connection substrate 82, and the cross section thereof is provided in a U shape. However, the present invention is not limited to this, and the cross section may be semi-elliptical or V-shaped. Moreover, you may make it provide the recessed part for terminals of a supporting member in the plane part of the connection boards 82a and 82b in FIG.

  The optical pickup device of the present invention can be applied to all devices that operate an optical system such as a lens. The optical pickup device of the present invention can be used particularly suitably in various sound reproducing devices or video reproducing devices such as a CD player and a DVD player.

1 is a perspective view showing a configuration of an optical pickup device according to a first embodiment of the present invention. It is a figure which shows the side surface of the optical pick-up apparatus of FIG. 1, (a) is the left view, (b) is the right view. It is a perspective view of the connection board used for the optical pick-up apparatus of FIG. FIG. 2 is an enlarged view of a portion indicated by an arrow A in the optical pickup device of FIG. 1. It is a perspective view which shows the structure of the optical pick-up apparatus which concerns on the 2nd Embodiment of this invention. It is a figure which shows the side surface of the optical pick-up apparatus of FIG. 5, (a) is the left view, (b) is the right view. FIG. 6 is a perspective view of a connection board used in the optical pickup device of FIG. 5. FIG. 6 is an enlarged view of a portion indicated by an arrow B in the optical pickup device of FIG. 5. It is a perspective view which shows the structure of the optical pick-up apparatus which concerns on the 3rd Embodiment of this invention. It is a figure which shows the side surface of the optical pick-up apparatus of FIG. 9, (a) is the left view, (b) is the right view. FIG. 10 is a perspective view of a connection board used in the optical pickup device of FIG. 9. FIG. 10 is an enlarged view of a portion indicated by an arrow C in the optical pickup device of FIG. 9. It is a perspective view which shows the structure of the optical pick-up apparatus which concerns on the 4th Embodiment of this invention. It is a figure which shows the side surface of the optical pick-up apparatus of FIG. 13, (a) is the left view, (b) is the right view. FIG. 14 is a perspective view of a connection board used in the optical pickup device of FIG. 13. It is a figure which shows the structure of the conventional optical pick-up apparatus, (a) is the top view, (b) is the side view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10, 40, 60, 80 ... Optical pick-up apparatus 12 ... Moving part 19 ... Objective lens 21a, 21b ... Focus coil 21c, 21d ... Focus coil terminal wire 22a, 22b ... Tilt coil 22c, 22d ... Tilt coil terminal wire 23a , 23b, 23c, 23d ... Tracking coil 23e, 23f ... Tracking coil terminal wire 26, 42, 62, 82 ... Connection board 26c, 42c, 62c, 82c ... Planar portion 26d-26g, 42d, 42e, 62d, 62e, 82d, 82d ... side portions 27, 44, 45, 64, 65, 85 ... side terminals (terminal recesses)
28, 47, 67 ... plane fixing part 30 ... support substrate 31, 32 ... conductive adhesive 35a-35f ... support wire (support member)
84a, 84b, 84c ... concave portion for terminal of support member

Claims (5)

A movable part having an objective lens for condensing laser light on the recording surface of the optical disc;
One end side is fixed to the support substrate, and the other end side is connected to the movable part, thereby supporting the movable part,
A coil provided in the movable part;
In an optical pickup device having
A connection board is disposed on at least one side surface of the movable part, and a fixed portion for electrically connecting the support member is provided on the plane part of the connection board, with respect to the plane of the plane part. An end of the coil is connected to a side surface portion of the connection board having a vertical surface. A concave portion for a coil terminal for electrically connecting the terminal wire of the coil with a conductive fusion material is provided in the side surface portion, and the support member and the coil are interposed via the fixing portion and the concave portion. 2. The optical pickup device according to claim 1, wherein the terminal line is electrically connected.   The planar portion of the connection board is provided with a concave portion for a terminal of the supporting member for electrically connecting the supporting member with a conductive adhesive, and the concave portion for the terminal of the coil that is conductive. 3. The optical pickup device according to claim 1, wherein the support member and the terminal wire of the coil are electrically connected to each other through a terminal recess of the support member.   4. The optical pickup device according to claim 2, wherein the terminal concave portion is formed in a semicircular shape, a V shape, a U shape, a U shape, a slope shape, or an L shape.   5. The optical pickup device according to claim 1, wherein a pad is formed on the entire inner circumference of the terminal recess.

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