JP2008117704A - Backlight connector mounting structure - Google Patents

Abstract

Provided is a structure for mounting a connector for a backlight which improves the workability of assembling a liquid crystal display.
A connector upper part (50) attached to a reflector (10) and a connector lower part (60) attached to a circuit board (40). The connector upper part (50) can contact a core wire (31) of a fluorescent lamp (30) and a connector. The connector terminal 100 is provided with a second contact portion 102 that can come into contact with the power supply terminal 62 of the lower portion 60, and the connector lower portion 60 is a third portion supported by the lead portion 62 b supported by the base portion 65 and the slide portion 61. A power source terminal 62 having a flexible portion 62e formed between the contact portion 62a and the third contact portion 62a and the lead portion 62b; and fixing the fixing portion 70 of the connector upper portion 50 to the reflecting plate 10; The lead part 62b of the power terminal 62 is soldered to the circuit board 40, the base part 65 of the connector lower part 60 is fixed to the circuit board 40, and the connector upper part 50 is fitted. The part 74 is inserted into the fitting hole 63 of the connector lower 60, it is brought into contact with the second contact portion 102 to the third contact portion 62a.
[Selection] Figure 10

Description

  The present invention relates to a mounting structure for a backlight connector used in a liquid crystal display, and more particularly to a mounting structure for a backlight connector that can improve assembly workability of a liquid crystal display.

  A fluorescent lamp as a backlight for illuminating the back surface of a liquid crystal display such as a liquid crystal television or a computer is a very thin lamp having a diameter of 2.6 to 5.0 mm, and a reflector disposed on the back surface of the display, A plurality are arranged in parallel. In order to supply electric power to such a fluorescent lamp, a core wire drawn out from the outside is usually soldered directly to a terminal wire connected to a power source.

Further, in FIG. 8 of Patent Document 1, terminal wires are soldered to the core wires of the respective fluorescent lamps, and plugs provided at the tips of the terminal wires are respectively fitted into sockets mounted on a circuit board. It has been described. 1 (a) and 1 (b) of Patent Document 2 are sockets in which cables are soldered to the core wires of the respective fluorescent lamps, and plugs provided at the tips of these cables are mounted on a circuit board. Also known to be fitted to each
JP 2005-180311 A JP 2000-047169 A

  In the above-described documents 1 and 2, the core wire of each fluorescent lamp and the terminal wire or cable must be soldered. This soldering operation is extremely complicated and needs to be performed by the number of fluorescent lamps, which hinders improvement in assembly workability (productivity) of the liquid crystal display.

  Moreover, in what was described in documents 1 and 2, the plugs connected to the core wires of the respective fluorescent lamps via terminal wires or cables must be fitted one by one into the sockets mounted on the circuit board. Don't be. This fitting operation must be performed by the number of fluorescent lamps, and the size of the plug and socket is small depending on the diameter of the fluorescent lamp (2.6 to 5.0 mm), and is performed in an extremely narrow space. Therefore, it is not easy.

  The present invention has been made in view of this point, and an object of the present invention is to provide a backlight connector mounting structure that improves the assembly workability of the liquid crystal display and can improve the productivity. .

  In order to achieve the above object, the present invention provides a backlight connector mounting structure comprising a connector upper part attached to a reflector and a connector lower part attached to a circuit board, wherein the connector upper part is a fluorescent light as a backlight. An actuator movable to attach and detach the lamp; a fixed part attached to the reflector; a fitting part extending from the reflector to the circuit board; and a first contact capable of contacting a core wire of the fluorescent lamp And a connector terminal formed with a second contact portion that can come into contact with a power supply terminal attached to the lower portion of the connector, the lower portion of the connector being attached to the circuit board, and to the base portion A movable slide portion, a fitting hole formed in the slide portion and into which the fitting portion is inserted, a lead portion supported by the base portion, and the slide And a power supply terminal formed with a flexible portion interposed between the third contact portion and the lead portion, and the fixing portion above the connector is used as the reflector. To the circuit board, and to fix the base part at the lower part of the connector to the circuit board, and to insert the fitting part at the upper part of the connector into the fitting hole at the lower part of the connector. And the second contact portion of the connector terminal is brought into contact with the third contact portion of the power supply terminal.

  Further, the insertion hole is configured to receive the insertion portion so that the insertion portion is freely inserted into the depth, and to move the insertion portion in a direction perpendicular to the longitudinal direction of the fluorescent lamp within the surface of the circuit board. Preferably, the slide part is attached to the circuit board so as to be movable in the longitudinal direction of the fluorescent lamp with respect to the base part.

  The upper part of the connector is disposed on the reflecting plate at a predetermined pitch substantially in parallel with a pair of pairs opposed to each other at a predetermined interval, and the lower part of the connector corresponds to the upper part of the connector. It is preferable that the circuit board is disposed at the same interval and at the same pitch as the predetermined pitch.

  Moreover, it is preferable that the said connector lower part is provided with the hinge part which connects the said base part and the said slide part elastically.

  According to the mounting structure of the backlight connector according to the present invention, the workability of assembling the liquid crystal display can be improved, and the productivity can be improved.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described with reference to the accompanying drawings.

  FIG. 1 is a schematic perspective view of a reflective plate 10 disposed on the back of a liquid crystal display (not shown) as seen from the liquid crystal display side, and FIG. 2 is a perspective view of the reflective plate 10 of FIG. FIG.

  The reflecting plate 10 includes an aluminum base plate 11 and a plastic white surface plate 12 laminated thereon. A plurality of pairs of backlight connectors 20 according to the present embodiment (three pairs in the present embodiment) are mounted on the base plate 11 of the reflecting plate 10. Between the pair of backlight connectors 20, a fluorescent lamp 30 as a backlight is set. The number of fluorescent lamps 30, that is, the number of pairs of backlight connectors 20 is appropriately changed depending on the size of the liquid crystal display.

  In the figure, the longitudinal direction of the fluorescent lamp 30 is the X direction, the direction orthogonal to the X direction in the plane of the reflector 10 is the Y direction, and the vertical direction of the reflector 10 is the Z direction.

  A circuit board 40 for supplying electric power to the backlight connector 20 is disposed on the rear surface side (base plate 11 side) of the reflector 10 in parallel with the reflector 10 at a distance from the reflector 10 in the Z direction. Has been. In the present embodiment, two circuit boards 40 are disposed on both sides of the reflecting plate 10 along the arrangement direction of the backlight connectors 20, but in FIG. 1 and FIG. Only the circuit board 40 on the right side is displayed, and the circuit board 40 on the right side in the figure is omitted. The two circuit boards 40 may be integrated.

  The backlight connector 20 according to this embodiment includes a connector upper part 50 that is attached to the reflector 10 and holds the fluorescent lamp 30, and a connector lower part 60 that is attached to the circuit board 40 and supplies power to the fluorescent lamp 30. It is configured. The connector upper part 50 is disposed on the reflector 10 in a plurality (three sets in the present embodiment) at a predetermined pitch in the Y direction substantially in parallel with a pair of pairs facing each other at a predetermined interval in the X direction. The connector lower portion 60 is disposed on the circuit board 40 in correspondence with the connector upper portion 50 at the same interval as the predetermined interval and at the same pitch as the predetermined pitch. In FIG. 2, for convenience of explanation, only the lower connector portion 60 on the left side in the drawing is shown, and the lower connector portion 60 on the right side in the drawing is omitted.

  FIG. 3 is a partially enlarged view of FIG.

  The connector lower portion 60 includes a base portion 65 fixed to the circuit board 40 and a slide portion 61 that can move in the X direction with respect to the base portion 65. The slide portion 61 is formed in a substantially rectangular parallelepiped shape, and is inserted into a rectangular attachment hole 41 formed in the circuit board 40. The attachment hole 41 is formed so that the dimension in the X direction is larger than the dimension in the same direction of the slide part 61, and the dimension in the Y direction is formed to match the dimension in the same direction of the slide part 61. Thereby, the slide part 61 can move in the X direction within the mounting hole 41 and cannot move in the Y direction.

  A hinge portion 64 bent in a U shape is interposed between the base portion 65 and the slide portion 61. The hinge portion 64 is elastically deformed when the slide portion 61 moves in the X direction with respect to the base portion 65. In this embodiment, the base portion 65, the hinge portion 64, and the slide portion 61 are integrally formed of resin or the like. However, since the base portion 65 and the slide portion 61 are connected via the power supply terminal 62, the hinge The portion 64 may be omitted, and the base portion 65 and the slide portion 61 may be separated.

  In the slide portion 61, a fitting hole 63 into which a fitting portion 74 formed in the connector upper portion 50 is inserted is formed in the Z direction. The insertion hole 63 is formed in a rectangular cross section, and receives the insertion portion 74 formed in a substantially rectangular cross section so as to be movable in the Y direction and immovable in the X direction. That is, the insertion hole 63 is formed so that the dimension in the Y direction is larger than the dimension in the same direction of the insertion part 74, and the dimension in the X direction is formed to match the dimension in the same direction of the insertion part 74.

  4 is a perspective view showing the connector lower portion 60 of FIG. 2 alone, FIG. 5 is a perspective view of the connector lower portion 60 of FIG. 4 viewed from the opposite side, and FIG. 6 is a longitudinal sectional perspective view of the connector lower portion 60 of FIG. is there.

  As described above, the connector lower portion 60 connects the base portion 65 fixed to the circuit board 40, the slide portion 61 movable in the X direction with respect to the base portion 65, and the base portion 65 and the slide portion 61. And a hinge portion 64. The slide portion 61 is formed with a leg portion 66 inserted into the mounting hole 41 (see FIG. 10) of the circuit board 40, and the leg portion 66 is formed with a hook 67 that engages with the back surface of the circuit board 40. Yes. The hook 67 has an engaging surface 671 that is long along the X direction, and guides the slide portion 61 so as to be movable along the edge of the mounting hole 41 in the X direction. On the other hand, the hinge portion 64 has a ridge portion bent in a U shape along the Y direction, and allows the slide portion 61 to move in the X direction with respect to the base portion 65.

  A power supply terminal 62 is attached to the connector lower portion 60. The power terminal 62 is disposed between a base press-fit portion 62c press-fitted into the base portion 65, a slide press-fit portion 62d press-fitted into the slide portion 61, and a U-shape disposed between the base press-fit portion 62c and the slide press-fit portion 62d. Flexible portion 62e bent in a shape (flexible portion of claim 2), lead portion 62b extending from base press-fit portion 62c and soldered to circuit board 40, and slide extended from slide press-fit portion 62d It consists of a contact part 62a (third contact part of claim 2) having a square cross-sectional shape exposed by protruding from the inner surface of the insertion hole 63 formed in the part 61. The direction of the ridge of the bent portion corresponds to the direction of the ridge of the hinge portion 64, and the flexible portion 62e is elastically deformed when the slide portion 61 moves in the X direction with respect to the base portion 65.

  7 is a perspective view of the connector upper portion 50 and the fluorescent lamp 30 shown in FIG. 1, FIG. 8 is a perspective vertical sectional view of FIG. 7, and FIG. 9 is an exploded perspective view of the connector upper portion 50.

  The connector upper part 50 includes a fixing part 70 that is rigidly fixed to the reflecting plate 10 (see FIG. 10), a holding part 80 that holds the fluorescent lamp 30, and a holding part 80 that is fixed to the fixing part 70 in the longitudinal direction of the fluorescent lamp 30 (see FIG. A sliding mechanism 90 that is movably engaged in the X direction) and a connector terminal 100 that is formed so as to bridge the holding portion 80 and the fixing portion 70 to supply power to the fluorescent lamp 30.

  The fixing portion 70 includes a fixing portion main body 71, four leg portions 72 formed in the fixing portion main body 71 and inserted so as to come into contact with four corners of the mounting holes 13 (see FIG. 10) of the reflector 10, and leg portions 72 and a hook 73 that engages with the back surface of the reflecting plate 10 and a fitting portion 74 that extends from the fixed portion main body 71 toward the back surface side (circuit board 40 side) of the reflecting plate 10 in the Z direction. The fixing portion 70 is rigidly attached to the attachment hole 13 of the reflecting plate 10 by the leg portion 72 and the hook 73, and cannot be moved in the X direction, the Y direction, and the Z direction.

  The holding portion 80 holds the holding portion main body 81, the fluorescent lamp receiving portion 82 formed in an inverted omega shape on the holding portion main body 81, and the fluorescent lamp 30 engaged with the fluorescent lamp receiving portion 82 so as to cover from above. And an actuator 83 rotatably attached to the main body 81. The fluorescent lamp receiving portion 82 elastically holds the fluorescent lamp 30 with a predetermined force. The actuator 83 is formed in a U-shaped cross section, and a convex portion 85 for holding the actuator 83 in a closed state by engaging a concave portion 84 formed in the holding portion main body 81 on both sides of the inner surface thereof. Is formed.

  The sliding mechanism 90 includes a locking portion 91 formed in a hook shape on the fixed portion 70, a locked portion 92 formed in a step shape on the holding portion 80, and a mounting surface 93 formed on the fixed portion 70. And a placement surface 94 formed on the holding portion 80. The mounting surface 93 and the mounting surface 94 are formed in parallel with the XY plane, and the locking surface 911 of the locking portion 91 and the locked surface 921 of the locked portion 92 are formed along the X direction. The length of the locked surface 921 is longer than the length of the locking surface 911, and the holding portion 80 can move only in the X direction with respect to the fixed portion 70.

  The connector terminal 100 is supported by the holding portion 80 and contacts the first contact portion 101 that contacts the core wire 31 (see FIG. 12) of the fluorescent lamp 30, and the first contact portion 101 that is supported by the fixing portion 70 and contacts the power supply terminal 62 (see FIG. 10). The second contact portion 102 and the flexible portion 103 interposed between the second contact portion 102 and the first contact portion 101 are provided.

  The first contact portion 101 includes a base portion 105 having a claw 104 fixed to the holding portion 80 and a spring portion 106 formed on the base portion 105 and elastically sandwiching the core wire 31 of the fluorescent lamp 30. It is accommodated in an accommodation groove 86 formed in 81. The spring portion 106 includes a pair of first elastic portions 107 arranged with the core wire 31 interposed therebetween, and a second elastic portion that is bent so as to be folded inward from the tip of each first elastic portion 107 and substantially holds the core wire 31. 108, and a spring force of the first elastic portion 107 and a spring force of the second elastic portion 108 are applied to the core wire 31 in series. The connecting portion between the first elastic portion 107 and the second elastic portion 108 has a slope portion 109 for guiding the core wire 31 inward, and is formed on the inner surface of the actuator 83 when the actuator 83 is closed. A pressed portion 110 that is pressed by the terminal pressing portion 87 (see FIG. 12) to bend each first elastic portion 107 inwardly protrudes outward.

  The second contact portion 102 is formed in a plate shape orthogonal to the circuit board 40, that is, a plate shape parallel to the YZ plane, and edge portions on both sides thereof are formed in the fixing portion main body 71 and the fitting portion 74 of the fixing portion 70. It is engaged with the groove 75. The second contact portion 102 has a first contact of the power terminal 62 attached to the connector lower portion 60 when the insertion portion 74 of the fixing portion 70 of the connector upper portion 50 is inserted into the insertion hole 63 of the connector lower portion 60 (see FIG. 10). The three contact portion 62a is pressed.

  The flexible portion 103 is formed to meander in an S shape on the YZ plane, and is elastically deformed when the first contact portion 101 moves in the X direction with respect to the second contact portion 102.

  FIG. 10 is a perspective vertical sectional view showing the reflecting plate 10, the circuit board 40, the backlight connector 20, and the fluorescent lamp 30.

  As described above, the backlight connector 20 includes the connector upper part 50 attached to the reflecting plate 10 and the connector lower part 60 attached to the circuit board 40.

  The connector lower portion 60 has a base portion 65 fixed to the circuit board 40 and a slide portion 61 that can move in the X direction with respect to the circuit board 40. The base portion 65 is rigidly fixed to the circuit board 40 by the lead portions 62b of the connector terminals 62 supported thereby being inserted into the dip holes 42 of the circuit board 40 and soldered. The slide part 61 is moved only in the X direction with respect to the circuit board 40 by the leg part 66 being inserted into the mounting hole 41 formed in the circuit board 40 and the hook 67 engaging the back surface of the circuit board 40. It is free. When the slide part 61 moves in the X direction with respect to the base part 65, the hinge part 64 (see FIG. 5) interposed between the base part 65 and the slide part 61 is elastically deformed.

  The connector upper part 50 includes a holding part 80 that holds the fluorescent lamp 30 and a fixing part 70 that is fixed to the reflecting plate 10. The fixing portion 70 is rigidly attached to the reflecting plate 10 (X, Y, and the like) by the leg portion 72 being inserted into the mounting hole 13 formed in the reflecting plate 10 and the hook 73 engaging the back surface of the reflecting plate 10. Fixed in the Z direction). The holding portion 80 is engaged with the fixing portion 70 so as to be movable only in the X direction by the sliding mechanism 90 described above. When the holding portion 80 moves in the X direction with respect to the fixed portion 70, the flexible portion 103 of the connector terminal 100 formed across the holding portion 80 and the fixed portion 70 is elastically deformed. The fluorescent lamp 30 is held in the holding unit 80 by the actuator 83.

  The fitting portion 74 formed to protrude toward the circuit board 40 side from the fixing portion 70 of the connector upper portion 50 is inserted into the fitting hole 63 formed in the slide portion 61 of the connector lower portion 60 so as to be freely adjustable in the Z direction. ing. As described above, the insertion portion 74 inserted into the insertion hole 63 can move in the Y direction with respect to the insertion hole 63 and cannot move in the X direction. The third contact portion 62 a of the power terminal 62 supported by the slide portion 61 of the connector lower portion 60 is pressed against the second contact portion 102 of the connector terminal 100 supported by the fitting portion 74 of the connector upper portion 50. . Thereby, the electric power of the circuit board 40 is supplied to the fluorescent lamp 30 via the power supply terminal 62 and the connector terminal 100.

  FIG. 11 is a perspective view showing the backlight connector 20 and the fluorescent lamp 30 with the actuator 83 opened, and FIG. 12 is a perspective cross-sectional view of the backlight connector 20 and the reflector 10 with the actuator 83 closed.

  The holding portion 80 of the connector upper portion 50 is formed with a core wire groove 88 that accommodates the core wire 31 of the fluorescent lamp 30. When the actuator 83 is closed, a core wire pressing portion 89 formed in a rib shape is inserted into the housing groove 88 when the actuator 83 is closed. The core wire pressing portion 89 presses the core wire 31 in the direction toward the bottom of the housing groove 88, and the core wire 31 is positioned at an appropriate position between the second elastic portions 108 of the connector terminal 100.

  Further, the holding portion 80 of the connector upper portion 50 is formed with a pressing groove 811 from which the pressed portion 110 of the connector terminal 100 protrudes. When the actuator 83 is closed, a terminal pressing portion 87 formed in a rib shape on the ceiling portion of the inner surface of the actuator 83 is inserted into the pressing groove 811. The pressed portion 110 of the connector terminal 100 is pressed inward by the terminal pressing portion 87, the first elastic portion 107 of the connector terminal 100 is elastically deformed inward, and the core wire 31 is elastically interposed between the second elastic portions 108. It is pinched.

  A method for assembling the backlight connector 20 and a method for mounting the fluorescent lamp 30 according to the present embodiment will be described.

  First, as shown in FIG. 10, prior to attaching the fluorescent lamp 30 to the backlight connector 20, the connector upper portion 50 in which the holding portion 80 and the fixing portion 70 are integrated into the mounting hole 13 of the reflecting plate 10. The leg part 72 of the fixing part 70 is inserted from the liquid crystal display side (upper side in FIG. 10), and the hook 73 of the leg part 72 is locked to the back surface of the reflecting plate 10. Thereby, the fixing portion 70 is rigidly fixed to the reflecting plate 10. On the other hand, the leg portion 66 of the slide portion 61 of the connector lower portion 60 is inserted into the mounting hole 41 of the circuit board 40 from the opposite side of the liquid crystal display (the lower side in FIG. 10), and the hook 67 of the leg portion 66 is inserted into the circuit board 40. The slide portion 61 is attached to the circuit board 40 so as to be movable only in the X direction by engaging with the back surface. Further, the lead portion 62b of the power supply terminal 62 supported by the base portion 65 of the connector lower portion 60 is inserted into the dip hole 42 of the circuit board 40, and the lead portion 62b is a conductor (for power supply) disposed on the circuit board 40. Solder to. The initial preparation is completed by the above steps.

  Next, the insertion portion 74 of the fixing portion 70 of the connector upper portion 50 protruding from the back surface of the reflection plate 10 is opposed to the insertion hole 63 of the slide portion 61 of the connector lower portion 60 attached to the circuit board 40, The circuit board 40 is brought close to the Z direction while being kept parallel. As a result, the insertion portion 74 is inserted into the insertion hole 63, and the second contact portion 102 of the connector terminal 100 supported by the insertion portion 74 contacts the third contact portion 62 a of the power supply terminal 62 supported by the slide portion 61. Will do. Thus, the connector upper portion 50 and the connector lower portion 60 are mechanically integrated and electrically integrated, and the connector terminal 100 is supplied with electric power from the circuit board 40 via the power supply terminal 62. .

  Thereafter, as shown in FIG. 11, the actuator 83 is raised and opened, the fluorescent lamp 30 is fitted into the fluorescent lamp receiving portion 82 of the holding portion 80, and the core wire 31 is positioned in the core wire groove 88. In this state, the actuator 83 is rotated and closed. Then, as the closing movement of the actuator 83 proceeds, the core wire pressing portion 89 formed on the ceiling portion on the inner surface of the actuator 83 is inserted into the core wire groove 88. Even if the core wire 31 of the fluorescent lamp 30 is warped upward by the core wire pressing portion 89, the core wire 31 is pressed to the bottom side of the core wire groove 88 by the core wire pressing portion 89, and the distortion is reduced. Will be corrected.

  When the closing rotation of the actuator 83 progresses, as shown in FIGS. 10 and 12, the terminal pressing portion formed on the ceiling portion of the inner surface of the actuator 83 at a position farther from the rotation shaft of the actuator 83 than the core wire pressing portion 89. 87 is inserted into the pressing groove 811. By this terminal pressing portion 89, the pressed portion 110 of the connector terminal 100 protruding into the pressing groove 811 is pressed inward, and the core wire 31 is sandwiched between the second elastic portions 108. Thereafter, when the closing rotation of the actuator 83 further proceeds, the convex portions 85 (see FIG. 11) formed on both sides of the inner surface of the actuator 83 engage with the concave portions 84 formed in the holding portion 80 of the connector upper portion 50. The actuator 83 is locked in the closed state. Thus, the assembly of the backlight connector 20 and the mounting of the fluorescent lamp 30 are completed.

  The operation of this embodiment will be described.

  As shown in FIG. 11, the actuator 83 is opened, the fluorescent lamp 30 is fitted into the fluorescent lamp receiving portion 82 of the connector upper portion 50, and the actuator 83 is closed as shown in FIG. (Mechanical) and the core wire 31 of the fluorescent lamp 30 can be electrically connected to the connector 20. That is, the fluorescent lamp 30 can be set to the connector 20 with a single touch, no soldering work is required, and the workability is extremely simple.

  In addition, a plurality of connector upper portions 50 are attached to the reflector 10 in advance, and a plurality of connector lower portions 60 are attached to the circuit board 40, and the reflector 10 and the circuit board 40 are brought close to each other in parallel to each other. Since the connector lower portions 60 and the connector lower portions 60 are integrated, the connector upper portion 50 and the connector lower portion 60 are integrated (assembled) at the same time, and the assemblability is improved.

  Therefore, the assembly workability (productivity) of the liquid crystal display can be improved.

  Further, an error in the X direction and / or the Y direction depends on the attachment position of the fixing portion 70 of the connector upper portion 50 attached to the reflector 10 and the attachment position of the base portion 65 of the connector lower portion 60 attached to the circuit board 40. If there is an error in the X direction and / or the Y direction in the relative position between the reflector 10 and the circuit board 40, such error is formed in the fixing portion 70 of the connector upper portion 50. When the inserted fitting portion 74 is inserted into the fitting hole 63 formed in the slide portion 61 of the connector lower portion 60, it is absorbed as follows.

  Among the mounting errors, the component in the Y direction is that the fitting portion 74 formed in the fixing portion 70 of the connector upper portion 50 moves in the Y direction in the fitting hole 63 formed in the slide portion 61 of the connector lower portion 60. It is absorbed. At this time, the slide portion 61 of the connector lower portion 60 does not move in the Y direction with respect to the circuit board 40. Further, when the insertion portion 74 moves in the Y direction in the insertion hole 63, the flat plate-like second contact portion 102 supported by the insertion portion 74 is a third contact having a cross-sectional shape protruding from the insertion hole 63. Since it slides in the Y direction while being pressed against the portion 62a, an appropriate electrical connection is ensured.

  Of the attachment error, the X-direction component is absorbed when the fitting portion 74 of the connector upper portion 50 pushes and pulls the slide portion 61 of the connector lower portion 60 in the X direction. That is, in a state where the insertion portion 74 formed in the fixing portion 70 of the connector upper portion 50 is inserted into the insertion hole 63 formed in the slide portion 61 of the connector lower portion 60, the slide portion 61 is attached to the mounting hole 41 of the circuit board 40. Is absorbed by moving in the X direction. At this time, the slide portion 61 moves in the X direction with respect to the base portion 65 fixed to the circuit board 40, but this movement is a hinge that elastically connects the base portion 65 and the slide portion 61. The portion 64 (see FIG. 5) is allowed to bend and the flexible portion 62e of the power supply terminal 62 is allowed to be bent. Moreover, since the insertion part 74 of the connector upper part 50 and the slide part 61 of the connector lower part 60 move integrally in the X direction, the second contact part 102 of the connector upper part 50 and the third contact part 62a of the connector lower part 60 The contact position relationship does not change, and an appropriate electrical connection is ensured.

  Further, when an error in the Z direction occurs in the relative position between the reflecting plate 10 and the circuit board 40, the error causes the fitting portion 74 formed in the fixing portion 70 of the connector upper portion 50 to be inserted into the connector lower portion 60. When inserting into the insertion hole 63 formed in the slide part 61, it is absorbed by adjusting the depth of the insertion depth. At the time of this adjustment, the flat plate-like second contact portion 102 supported by the insertion portion 74 slides in the Z direction while being pressed against the third contact portion 62a having a square cross section protruding from the insertion hole 63. Therefore, proper electrical connection is ensured.

  When the fluorescent lamp 30 set in the connector 20 is turned on and thermally expanded in the longitudinal direction, or when the fluorescent lamp 30 is extinguished and thermally contracted in the longitudinal direction, the holding portion 80 that holds the fluorescent lamp 30 is reflected by the reflector. 10 moves in the X direction which is the longitudinal direction of the fluorescent lamp 30 with respect to the fixed portion 70 fixed to the rigid. At this time, the flexible portion 103 of the connector terminal 100 is bent, and the movement of the holding portion 80 relative to the fixed portion 70 is allowed. Therefore, the thermal expansion of the fluorescent lamp 30 is absorbed and no thermal stress is generated in the fluorescent lamp 30. In addition, the connector terminal 100 is not damaged, and the power supply to the fluorescent lamp 30 is maintained soundly.

  As shown in FIG. 12, when the core wire 31 of the fluorescent lamp 30 is sandwiched between the spring portions 106 of the connector terminal 100, the spring portion 106 is a double consisting of a first elastic portion 107 and a second elastic portion 108. Since it has a spring structure, it is possible to flexibly follow the difference in diameter of the core wire 31 due to the difference in diameter of the fluorescent lamp 30 and elastically hold the core wire 31 of each diameter with an appropriate pressing force.

It is the schematic perspective view which looked at the reflecting plate arrange | positioned at the back surface of a liquid crystal display (not shown) from the liquid crystal display side. It is the schematic perspective view which looked at the reflecting plate of FIG. 1 from the opposite side to FIG. FIG. 3 is a partially enlarged view of FIG. 2. It is the perspective view which displayed the connector lower part of FIG. 2 independently. It is the perspective view which looked at the connector lower part of FIG. 4 from the other side. It is a longitudinal cross-sectional perspective view of the connector lower part of FIG. It is a perspective view of the connector upper part and fluorescent lamp which are shown in FIG. It is an isometric view longitudinal cross-sectional view of a connector upper part and a fluorescent lamp. It is a disassembled perspective view of a connector upper part. It is a perspective longitudinal cross-sectional view which shows a reflecting plate, a circuit board, the connector for backlights, and a fluorescent lamp. It is a perspective view which shows the connector for backlights and the fluorescent lamp which opened the actuator. FIG. 5 is a perspective cross-sectional view of a backlight connector and a reflection plate with an actuator closed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Reflector 20 Backlight connector 30 Fluorescent lamp 31 Core wire 50 Connector upper part 60 Connector lower part 61 Slide part 62 Power supply terminal 62a 3rd contact part 62b Lead part 62e Flexible part 63 Insertion hole 65 Base part 70 Fixing part 74 Insertion part 80 Holding part
83 Actuator 90 Sliding mechanism 100 Connector terminal 101 First contact part 102 Second contact part 103 Flexible part 106 Spring part 107 First elastic part 108 Second elastic part

Claims (4)

A backlight connector mounting structure comprising a connector upper part attached to a reflector and a connector lower part attached to a circuit board,
The upper part of the connector includes an actuator that is movable to attach and detach a fluorescent lamp as a backlight, a fixing part that is attached to the reflecting plate, a fitting part that extends from the reflecting plate side to the circuit board side, and the fluorescent light A connector terminal having a first contact portion that can come into contact with the core wire of the lamp and a second contact portion that can come into contact with a power supply terminal attached to the lower portion of the connector;
The lower part of the connector is supported on the base part, a base part attached to the circuit board, a slide part movable with respect to the base part, an insertion hole formed in the slide part into which the insertion part is inserted, and the base part And a power contact terminal formed with a flexible contact portion interposed between the third contact portion and the lead portion, and a third contact portion supported by the slide portion.
Fixing the fixing portion at the top of the connector to the reflector, soldering the lead portion of the power supply terminal to the circuit board, fixing the base portion at the bottom of the connector to the circuit board, The backlight connector mounting structure, wherein the insertion portion is inserted into the insertion hole in the lower portion of the connector, and the second contact portion of the connector terminal is brought into contact with the third contact portion of the power supply terminal. .   The insertion hole is configured such that the insertion portion is inserted freely in depth, and the inserted insertion portion is movably received in a direction perpendicular to the longitudinal direction of the fluorescent lamp within the surface of the circuit board. The backlight connector mounting structure according to claim 1, wherein the slide portion is attached to the circuit board so as to be movable in the longitudinal direction of the fluorescent lamp with respect to the base portion. The upper part of the connector is arranged on a plurality of the reflecting plates at a predetermined pitch substantially in parallel with a pair of opposing faces as a set,
3. The backlight connector mounting structure according to claim 1, wherein the lower portion of the connector is disposed on the circuit board at the same interval as the predetermined interval and at the same pitch as the predetermined interval so as to correspond to the upper portion of the connector.   The attachment structure of the connector for backlights in any one of Claims 1-3 with which the said connector lower part was provided with the hinge part which connects the said base part and the said slide part elastically.

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