JP2009081027A - Backlight connector and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector, and its manufacturing method, excellent in assemblability, for one for a backlight equipped with a floating mechanism absorbing thermal expansion and contraction of a fluorescent lamp. <P>SOLUTION: In the manufacturing method of the connector 20 provided with a fixed part 21 fixed to a fixing system (a frame 11), a floating part 22 mounted on a fluorescent lamp 30 in free sliding in a length direction, and a terminal 40 having a flexible part 43 between an upper part mounted on the floating part 22 and a lower part mounted on the fixed part 21, the fixed part 21 is structured of a box body with a ceiling 21t and a rear face 21h removed, a floating part/terminal assembly body higher than the fixed part 21 is obtained by having a top part of the terminal 40 mounted on the floating part 22, the floating part/terminal assembly body is made to progress into the fixed part 21 from the rear face 21h of the fixed part with the upper part of the floating part 22 in a state protruded from the ceiling 21t of the fixed part 21, and the lower part of the terminal 40 of the floating part/terminal assembly body progressed is mounted on the fixed part 21. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a backlight connector used in a liquid crystal display and a manufacturing method thereof, and more particularly to a backlight connector and a manufacturing method thereof that can improve productivity.

  For example, the fluorescent lamp as the backlight that illuminates the back of the LCD TV display is extremely thin with a diameter of 2.6 to 5.0 mm. It is arranged. And the lead wire pulled out from the fluorescent lamp to supply power to the backlight is usually soldered directly to a power source line, a substrate, etc. connected to the power source.

  For this reason, in paragraph 0004 of Patent Document 1, “the end of the adjacent terminal wire (lead wire) must be soldered at a high temperature in a limited space, and the finish may be uneven. As a problem has been raised, the soldering process of the lead wire is extremely complicated, and the productivity and quality of the display are hindered.

  In order to solve this, in Patent Document 1, as a backlight connector, a connector housing in which a fluorescent lamp as a backlight is set, an actuator pivotally supported by the connector housing so as to be opened and closed, and a connector housing are mounted. And a terminal formed with a pair of contact portions for sandwiching the lead wire of the fluorescent lamp, and the actuator is elastically deformed by pressing the terminal when the actuator is opened to widen the interval between the contact portions, and separated from the terminal when the actuator is closed. Further, there is described an invention in which a cam portion is provided which narrows the interval between the contact portions by utilizing the return of the elastically deformed terminal.

  According to the present invention, when the actuator is opened and the fluorescent lamp is set in the connector housing, the gap between the pair of contact portions formed on the terminals is widened by the cam portion. The lead wire of the fluorescent lamp can be inserted in between, and when the actuator is closed after that, the cam part is detached from the terminal, so that the contact point interval is reduced to the original state by the elastic force of the terminal, and the contact part The lead wire of the fluorescent lamp is clamped to obtain an electrical connection. Therefore, the soldering work which becomes a factor which obstructs the productivity of a liquid crystal display becomes unnecessary.

JP 2005-259370 A

  By the way, the fluorescent lamp itself generates heat when it is turned on and thermally expands in the longitudinal direction (the axial direction of the fluorescent lamp), but when it is turned off, heat is released to the surroundings and contracts. Nevertheless, the invention described in Patent Document 1 does not take into account the thermal expansion and contraction of the fluorescent lamp, and therefore stress (thermal stress) due to thermal expansion and contraction associated with the lighting and extinguishing of the fluorescent lamp repeatedly acts on the fluorescent lamp. Therefore, as described above, there is a possibility that the fluorescent lamp made of a thin and fragile glass tube may be damaged.

  For such a problem, a countermeasure for absorbing the thermal expansion and contraction by adding a floating mechanism (floating mechanism) to the connector can be considered. Such a connector has a fixed part fixed to an attachment member (fixed system) such as a frame or a chassis, a floating part that is slidably mounted on the fixed part and in which a fluorescent lamp is set, and an upper part fixed to the floating part. It is comprised from the terminal etc. which are each attached to a part and have a flexible part between the upper part and the lower part. According to this connector, when the fluorescent lamp is thermally expanded and contracted, the floating portion slides with respect to the fixed portion, and the thermal expansion and contraction of the fluorescent lamp is absorbed.

  However, in the backlight connector having such a floating mechanism, the upper part of the terminal is fixed to the floating part, the lower part of the terminal is fixed to the fixing part, and the floating part is fixed to the fixing part in the longitudinal direction of the fluorescent lamp. It had to be slidably mounted on, and the assembly was not good. Therefore, in order to assemble such a connector, it is necessary to use an expensive assembling machine capable of performing a complicated assembling operation, which causes an increase in cost.

  The object of the present invention, which was created in view of the above circumstances, is a backlight connector having a floating mechanism that absorbs thermal expansion and contraction of a fluorescent lamp, and a backlight connector excellent in its assemblability and its manufacture It is to provide a method.

  A first invention (invention of a manufacturing method) created to achieve the above object is that a fixing part fixed to a fixing system and a fluorescent lamp are set, and the fixing part slides in the longitudinal direction of the fluorescent lamp. A method for manufacturing a connector for a backlight, comprising: a floating part that can be mounted; and a terminal having an upper part attached to the floating part and a lower part attached to the fixed part and having a flexible part between the upper part and the lower part. Then, the fixing part is composed of a box body from which the ceiling and the back surface are removed, and the floating part / terminal assembly which is taller than the fixing part is obtained by attaching the upper part of the terminal to the floating part. The floating part / terminal assembly is inserted into the fixed part from the back of the fixed part in a state where the upper part of the floating part protrudes from the ceiling of the fixed part. Attach the lower part of the terminal to the fixed part Than is.

  When the floating part / terminal assembly enters the fixed part from the back surface of the fixed part, the boss formed on the floating part / terminal assembly is formed in a groove shape on the inner surface of the fixed part from the back surface to the front surface. You may engage with the formed rail.

  After the lower part of the terminal of the floating part / terminal assembly is mounted on the fixed part, a cover part may be attached to the back surface of the fixed part, and the back surface of the fixed part may be closed with the cover part.

  After attaching the lid to the back surface of the fixed part, an actuator for holding the set fluorescent lamp may be rotatably mounted on the floating part of the floating part / terminal assembly.

  The second invention (the invention of the product) is a fixed part fixed to a fixed system, a fluorescent lamp is set, and a floating part mounted on the fixed part so as to be slidable in the longitudinal direction of the fluorescent lamp, A backlight connector having an upper portion attached to the floating portion and a lower portion attached to the fixed portion and a terminal having a flexible portion between the upper portion and the lower portion, wherein the fixed portion includes a ceiling and a back surface. The rail is formed on the inner surface of the fixed portion, the rail is formed in a groove shape from the back to the front, and the upper portion of the terminal is mounted on the floating portion. Is formed at the lower part of the floating part of the floating part / terminal assembly and the floating part of the floating part / terminal assembly, and the floating part / terminal assembly is protruded from the ceiling of the fixed part. When entering the fixed part from the back of the fixed part A boss engaged with the rail, a lid attached to the back of the fixed part, and a floating part of the floating part / terminal assembly are attached to be openable and closable. When opened, a fluorescent lamp is attached to the floating part. And an actuator for holding the set fluorescent lamp when closed.

  According to the backlight connector and the manufacturing method thereof according to the present invention, it is possible to exhibit excellent assemblability and promote cost reduction while being a backlight connector having a floating mechanism that absorbs thermal expansion and contraction of a fluorescent lamp. .

  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 the vicinity of the reflection plate 10 disposed on the back surface of a liquid crystal display (not shown) as viewed from the liquid crystal display side, and FIG. 2 is a view of the vicinity of the reflection plate 10 from the anti-liquid crystal display side. FIG.

  A plurality of backlight connectors (hereinafter referred to as connectors) 20 according to the present embodiment are arranged in parallel on the plate-like frame 11 to which the reflecting plate 10 is attached. Between them, a fluorescent lamp 30 as a backlight is mounted. In the present embodiment, an example in which there are nine pairs of connectors 20 and nine fluorescent lamps 30 are mounted thereon is shown. However, the number of fluorescent lamps 30 may vary depending on the size of the liquid crystal display. Different. In the present embodiment, the fluorescent lamp 30 is a rod-shaped (I-shaped), but may be U-shaped. In the present embodiment, the connector 20 is attached to the frame 11, but the present invention is not limited to this, and the connector 20 may be attached to the chassis of the liquid crystal display or directly to the reflector 10.

  FIG. 3 is a partially enlarged view of FIG.

  The connector 20 has a fixed portion 21 fixed to the frame 11, a floating portion 22 slidable in the axial direction of the fluorescent lamp 30 with respect to the fixed portion 21, a lower portion fixed to the fixed portion 21, and an upper portion fixed to the floating portion 22. The lower part contacts the power supply member (power supply board) 60, the upper part contacts the lead wire 30r of the fluorescent lamp 30 (see FIG. 4), the actuator 23 rotatably supported by the floating portion 22, and the like. It has. The fixed portion 21 and the floating portion 22 constitute a connector housing 24, and the actuator 23 allows the fluorescent lamp 30 to be set on the floating portion 22 of the connector housing 24 when opened, and is set when closed. The fluorescent lamp 30 is held.

  4 is a cross-sectional view taken along line IV-IV in FIG. 3, FIG. 5 is a cross-sectional view taken along line V-V in FIG. 4, and FIG.

  The fixing portion 21 is configured by removing a ceiling 21t and a back surface 21h of a box-shaped molded product (box body), and a convex portion 60a of a power supply member (power supply board) 60 is formed below the front surface 21s. An insertion window 21m is formed, a flange 21f is formed around the ceiling 21t, and a tongue spring 21b is formed at the center of the side surface 21w. The fixing portion 21 is pushed into a rectangular hole 11a formed in the frame 11 from above, and is easily fixed thereto by sandwiching the frame 11 between the lower surface of the flange 21f and the upper surface of the tongue spring 21b. Is done.

  Inside the front surface 21 s of the fixed portion 21, a front sliding surface 21 k formed so as to bridge the left and right side surfaces 21 w is provided in a predetermined length in the axial direction of the fluorescent lamp 30. A front sliding portion 22k of the floating portion 22 is placed on the front sliding surface 21k so as to be slidable (slidable) in the axial direction of the fluorescent lamp 30. Thereby, the floating part 22 is supported by the fixed part 21 so as to be slidable in the axial direction (longitudinal direction) of the fluorescent lamp 30. In addition, a later-described abutment 21c is provided on the flange 21f on the left and right side surfaces 21w of the fixing portion 21, respectively.

  On the other hand, the floating portion 22 includes a bearing 22j that supports the shaft 23j of the actuator 23, a lead wire insertion groove (insertion groove) 22m through which the lead wire 30r of the fluorescent lamp 30 is inserted, and a core wire contact portion 41 of the terminal 40 in the insertion groove 22m. The terminal groove 22n that faces the holding part 41k of the terminal 23, the pressing part groove 22p that the terminal pressing part 23q provided in the actuator 23 can enter when the actuator 23 is closed, and the actuator 23 that is provided when the actuator 23 is closed. A lock claw 22t is provided as an engaging portion that engages with the engaged portion 23h. The floating portion 22 is positioned there so as to close the ceiling 21t of the fixed portion 21.

  An upper sliding portion 22kk is provided at the rear of the floating portion 22 at a position higher than the front sliding portion 22k. The upper sliding portion 22kk is slidable in the axial direction of the fluorescent lamp 30 on a flange 21f on the left and right side surfaces 21w of the fixing portion 21 and a flange 50f of a lid portion 50 to be described later attached to the fixing portion 21. It is placed. Thereby, the floating part 22 is supported by the fixed part 21 so as to be slidable in the axial direction of the fluorescent lamp 30.

  Further, bosses 22 b are projected from the left and right side surfaces of the floating portion 22. The bosses 22b are engaged with groove-shaped rails 21r formed along the axial direction of the fluorescent lamp 30 from the back surface 21h toward the front surface 21s inside the left and right side surfaces 21w of the fixing portion 21. Thereby, the floating part 22 is guided in the axial direction of the fluorescent lamp 30 with respect to the fixed part 21, and the floating part 22 is prevented from being detached upward from the fixed part 21, and the terminal 40 is extended in the vertical direction. Is prevented.

  On the left and right sides of the floating portion 22, protrusions 22 g are provided at the upper ends of the columnar members extending upward from below. When the actuator 23 is opened, these protrusions 22g lightly engage with a step portion 23g formed on the lateral wall 23y to hold the actuator 23 in an open state. Thereby, even if it does not support the actuator 23, it can be made into an open state and the workability | operativity at the time of setting the fluorescent lamp 30 to the connector 20 improves. Since the engaging force between the protrusion 22g and the step portion 23g is extremely weak, the opened actuator 23 can be easily brought down to the closed state.

  The terminal 40 includes a core wire contact portion 41 that is in contact with the lead wire 30r of the fluorescent lamp 30, a rectangular plate-like first base portion 42 that is positioned below and attached to the floating portion 22, and a flexible portion 43 that extends downward therefrom. Further, a second base 44 mounted on the fixing portion 21 and a power supply contact portion 45 that extends in the horizontal direction and can contact the power supply member 60 is provided.

  The core wire contact portion 41 and the first base portion 42 are inserted from below into a terminal groove 22n formed in a slit shape in the floating portion 22, and the first base portion 42 is press-fitted into the terminal groove 22n, that is, the first base portion 42. An arrowhead 42y provided at the side end of the terminal bites into the side surface of the terminal groove 22n so that it is mounted on the floating portion 22. The core wire contact portion 41 includes a pair of arms 41a that are continuous with the first base portion 42, a sandwiching portion 41k that is opposed to each other with its tip formed in a U shape, and a pressed portion 41h that protrudes in a triangular shape on the opposite side. Have

  The pair of clamping portions 41k slightly protrude from both side walls of the insertion groove 22m so that the lead wire 30r of the fluorescent lamp 30 can be inserted into the insertion groove 22m of the floating portion 22. The pair of pressed portions 41h protrudes into the pressing portion groove 22p of the floating portion 22, and is pressed by the terminal pressing portion 23q that enters the pressing portion groove 22p when the actuator 23 is closed. Yes. When the terminal pressing portion 23q of the actuator 23 presses the pressed portion 41h of the terminal 40, the left and right arms 41a are elastically deformed inward in the width direction, and the left and right holding portions 41k elastically hold the lead wire 30r of the fluorescent lamp 30. To do. Thereby, the fluorescent lamp 30 and the terminal 40 are electrically connected.

  The second base portion 44 of the terminal 40 includes a rectangular plate-like plate body 44 a and leg-like press-fit portions 46 extending in the horizontal direction from the four corners of the plate body 44 a. It is press-fitted into a press-fitting hole (not shown) formed on the inner side, and an arrowhead 46y provided at the tip of the press-fitting part 46 bites into the press-fitting hole, so that the fixing part 21 is mounted. The power supply contact portion 45 of the terminal 40 is formed in a mountain shape by cutting and raising the bottom portion of the second base portion 44 having a U-shaped cross section, and is given elasticity.

  The flexible portion 43 of the terminal 40 is provided between the first base portion 42 and the second base portion 44 and allows them to move relatively in the axial direction of the fluorescent lamp 30. The flexible portion 43 is formed of a thin plate having one end connected to the first base 42 and the other end connected to the second base 44, and is formed in a spiral shape. The first base 42 and the second base 44 are relatively moved. It exhibits an elastic restoring force when hit.

  The actuator 23 includes a top wall 23t and a pair of lateral walls 23y that are connected to the top wall 23t at right angles, and a shaft 23j provided on the lateral wall 23y is rotatably supported by a bearing 22j of the floating portion 22. On the inner surface of the top wall 23t, when the actuator 23 is closed, a terminal pressing portion 23q that enters the pressing portion groove 22p of the floating portion 22 and presses the pressed portion 41h of the terminal 40 hangs down in a plate shape. In addition, a lead wire pressing portion 23r that enters the insertion groove 22m of the floating portion 22 and presses the lead wire 30r of the fluorescent lamp 30 and pushes it to an appropriate position is formed in a plate shape.

  Further, on the front end side of the horizontal wall 23y (the side with the shaft 23j is referred to as the rear end side and the opposite side is referred to as the front end side), when the actuator 23 is closed, it engages with a lock claw 22t provided in the floating portion 22. An engaged portion 23h is provided. The lock claw 22t and the engaged portion 23h constitute a lock mechanism 70 that keeps the actuator 23 closed with a predetermined restraining force when the actuator 23 is closed.

  As shown in FIGS. 7 and 8, the lock claw 22t has a leg portion 22ta and a claw portion 22tb that are integrally formed with the floating portion 22 of resin. The claw portion 22tb has an upper slope 22tc, a lower slope 22td, a side slope 22te, and a top 22tf formed at a portion where each slope intersects, and is substantially a mountain when viewed from the front (see FIG. 7A). It is formed in a substantially triangular shape when viewed from the upper surface (see FIG. 7C). On the other hand, the horizontal wall 23y of the actuator 23 is provided with a guiding portion 23ya formed in an inclined manner at the lower portion thereof, and a planar locked surface 23yb as a locked portion 23h is provided at the upper portion thereof.

  When the actuator 23 is rotated in the closing direction, the guiding portion 23ya provided at the lower portion of the lateral wall 23y hits the upper inclined surface 22tc and the side inclined surface 22te of the claw portion 22tb of the lock claw 22t and rides on the inclined surfaces, thereby locking the lock claw 22t. Leg portion 22ta is deformed inward (to the left in FIG. 8). When the rotation of the actuator 23 in the closing direction further proceeds, the inner surface of the lateral wall 23y of the actuator rides on the top portion 22tf of the lock claw 22t, passes through the claw portion 22tb, and as shown by the phantom line in FIG. The inner edge portion 23yc of the locked surface 23yb provided on the lower surface of the lower inclined surface 22td of the claw portion 22tb comes into contact.

  Thereafter, even if a force in the opening direction is applied to the actuator 23, if the force is equal to or less than a predetermined force, the inner edge 23yc of the locked surface 23yb of the lateral wall 23y is at the lower end of the lower slope 22td of the claw portion 22tb. The actuator 23 does not open because the leg 22ta of the lock claw 22t is not bent inward. That is, once the actuator 23 is closed, it is held in a locked state with a predetermined restraining force. The lock claw 22t and the locked portion 23h constitute a lock mechanism 70.

  When a force in the opening direction that exceeds the restraining force is applied to the actuator 23, the inner edge 23yc of the locked surface 23yb of the lateral wall 23y rides on the lower inclined surface 22td of the claw 22tb, and the leg 22ta is deformed inward. To do. When the rotation in the opening direction of the actuator 23 further proceeds, the inner surface of the lateral wall 23y of the actuator 23 rides on the top portion 22tf of the claw portion 22tb and slides past the claw portion 22tb, and finally the actuator 23 is opened. Become.

  As shown in FIGS. 3 and 6, a gap is formed between the lower surface of the lateral wall 23y of the closed actuator 23 and the upper surface of the flange 21f of the floating portion 22 at the front end of the lower portion of the lateral wall 23y of the actuator 23. As described above, a notch 23c is provided. A projection 23d is formed at the forefront of the lateral wall 23y by the notch 23c, and the lower surface of the projection 23d is an input for applying a force in the opening direction that exceeds the restraining force of the lock mechanism 70 to the closed actuator 23. Part.

  On the upper surface of the flange 21f of the fixing portion 21, when the actuator 23 is closed, the rod-shaped tool is inserted in the gap when the actuator 23 is opened by being positioned in the vicinity of the notch 23c, that is, the projection 23d. An abutment 21c serving as a fulcrum is provided. The abutment 21c serves as a fulcrum when the tool inserted in the gap is operated as a lever. Further, the tip of the tool abuts on the lower surface of the projection 23d to open the actuator 23, and the base end of the tool serves as a force point for input.

  As shown in FIGS. 4-6, the cover part 50 is attached to the back surface 21h of the fixing | fixed part 21 so that the back surface 21h may be plugged up. The lid 50 includes a flange 50f connected to the flange 21f of the side surface 21w of the fixed portion 21, a rear wall 50w extending downward from the flange 50f, a side wall 50s extending forward from both left and right ends of the rear wall 50w, A locking projection 50k provided at 50s is provided. The lid portion 50 is mounted on the rear surface 21h of the fixing portion 21 from the rear, and the locking protrusion 50k is engaged with a locking recess (not shown) formed on the side surface 21w of the fixing portion 21 so as to be integrated with the fixing portion 21. Assembled.

  The fixing part 21, the floating part 22, the actuator 23, the terminal 40, and the lid part 50 described above are assembled as follows and become the connector 20.

  First, the core wire contact portion 41 and the first base portion 42 of the terminal 40 are press-fitted into the terminal groove 22n of the floating portion 22 shown in FIG. As a result, the pinching portion 41k of the terminal 40 faces the lead wire insertion groove 22m of the floating portion 22, the pressed portion 41h of the terminal 40 is positioned so as to protrude into the pressing groove 22p of the floating portion 22, and the first base portion 42 of the terminal 40 is located. The arrowhead 42 y provided on the terminal bites into the terminal groove 22 n of the floating portion 22, and the first base portion 42 of the terminal 40 is fixed to the floating portion 22. Thus, by assembling the upper portion of the terminal 40 to the floating portion 22, a floating portion / terminal assembly that is taller than the fixed portion 21 is obtained.

  Next, the floating portion / terminal assembly is fed into the fixing portion 21 in the horizontal direction from the back surface 21h side to the front surface 21s side of the fixing portion 21. At this time, the bosses 22b provided on the left and right side surfaces of the floating portion 22 are fitted into rails 21r formed on the left and right side surfaces 21w of the fixing portion 21, and the second base portion 44 of the terminal 40 is guided while guiding the horizontal movement of the floating portion 22. Press. As a result, the four leg-shaped press-fit portions 46 provided at the four corners of the second base portion 44 of the terminal 40 are fitted into press-fit holes (not shown) provided inside the fixed portion 21, and provided at the tip of the press-fit portion 46. The arrowhead 46y bites into the press-fitting hole. As a result, the second base portion 44 of the terminal 40 is fixed to the fixing portion 21 with the power contact portion 45 of the terminal 40 positioned so as to face the insertion window 21m.

  Here, when the press-fit portion 46 of the second base portion 44 is fitted into the press-fit hole of the fixed portion 21, the pressed second base portion 44 is a plate body 44 a and four leg-like press-fit portions 46 provided at the four corners. And is configured in a table shape, and has high rigidity with respect to the force applied in the direction of compressing the four press-fit portions 46, and therefore, distortion and the like are unlikely to occur. Therefore, the boss 22b of the floating portion 22 is guided by the rail 21r of the fixed portion 21 so that the press-fit portion 46 positioned so as to face the press-fit hole is prevented from being displaced from the press-fit hole, and the second of the terminal 40 The base 44 is accurately fixed to the fixing portion 21.

  As described above, the boss 22b formed on the floating portion 22 of the floating portion / terminal assembly and the rail 21r formed on the fixing portion 21 are used when the floating portion / terminal assembly is assembled to the fixing portion 21. It functions as a guide for press-fitting the press-fit portion 46 of the terminal 40 of the terminal assembly in a state where the press-fit portion 46 of the terminal assembly is accurately positioned at a position facing the press-fitting hole of the fixed portion 21, and when the fluorescent lamp 30 is thermally expanded and contracted. Functions as a guide for sliding in the longitudinal direction of the fluorescent lamp 30 with respect to the fixed portion 21.

  In addition, as a procedure in which the floating part / terminal assembly can be replaced with the method of feeding from the back surface of the fixed part 21, the floating part / terminal assembly is lowered from the ceiling 21t of the fixed part 21, and the floating part / terminal assembly lowered. However, in this case, since the direction in which the floating part / terminal assembly is lowered is different from the direction in which the floating part / terminal assembly is advanced, the assembling machine for assembling the floating part / terminal assembly to the fixed part 21. Is complicated and cost increases are inevitable.

  As described above, according to the present embodiment, in order to absorb the thermal expansion and contraction of the fluorescent lamp 30, the upper portion of the terminal 40 is fixed to the floating portion 22, the lower portion of the terminal 40 is fixed to the fixing portion 21, and the floating portion is floated. Even in the connector 20 having a floating mechanism that attaches the portion 22 to the fixed portion 21 so as to be slidable in the longitudinal direction of the fluorescent lamp 30, the floating portion / terminal assembly is directed from the back surface 21h of the fixed portion 21 toward the front surface 21s. Since the assembly can be performed in one direction of movement in the horizontal direction, an inexpensive assembly machine for assembling the connector can be used, and the manufacturing cost of the connector 20 is reduced.

  When the floating portion / terminal assembly is advanced from the rear surface 21h of the fixing portion 21 into the fixing portion 21, the floating portion / terminal assembly is taller than the fixing portion 21, so that the floating portion 22 of the floating portion / terminal assembly is The part protrudes upward from the fixing part 21, but since the rear surface 21 h and the ceiling 21 t of the fixing part 21 are removed and there is nothing, the floating part / terminal assembly is fixed from the rear surface 21 h of the fixing part 21 without any trouble. It can be advanced into the part 21. Thus, the floating part / terminal / fixed part assembly in which the fixing part 21 is assembled to the floating part / terminal assembly is obtained.

  Subsequently, the lid 50 is assembled to the floating part / terminal / fixing part assembly. Specifically, the lid portion 50 is made to face the back surface 21h of the fixing portion 21 of the floating portion / terminal / fixing portion assembly, and the lid portion 50 is advanced, whereby the side wall 50s of the lid portion 50 is moved to the fixing portion 21. Push into the side 21w. As a result, the locking projection 50k provided on the side wall 50s of the lid 50 is engaged with a locking recess (not shown) formed on the side surface 21w of the fixing portion 21, and the lid 50 is fixed to the fixing portion 21.

  As a result, the rear surface 21h of the fixing portion 21 is closed by the lid portion 50, and the flange 21f of the fixing portion 21 and the flange 50f of the lid portion 50 are integrally connected so as to be flush with each other. The flanges 21f and 50f connected to each other serve as a sliding surface of the upper sliding portion 22kk formed in the floating portion 22. Further, the flange 50f of the lid part 50 also serves as a stopper when the floating part 22 moves backward.

  In addition, since a high voltage current flows through the lead wire 30r of the fluorescent lamp 30, there is a risk of electric shock when an operator touches the terminal 40 in the fixing portion 21 in contact with the lead wire 30r. Since the back surface 21h of 21 is blocked and the operator cannot access the terminal 40 in the fixed portion 21, an electric shock is prevented. Further, entry of dust or the like into the connector 20 is also prevented.

  Thus, the floating part / terminal / fixing part / lid part assembly in which the lid part 50 is assembled to the floating part / terminal / fixing part assembly is obtained.

  Finally, the actuator 23 is attached to the floating part / terminal / fixing part / lid part assembly. That is, the shaft 23j is pushed into the bearing 22j of the floating portion 22 from above with the actuator 23 in the upright state (in the open position). Thus, the assembly (manufacture) of the connector 20 is completed.

  The fluorescent lamp 30 is attached to such a connector 20 as follows.

  First, the actuator 23 is rotated about the shaft 23j to be in a state of being approximately 90 degrees (opened state). Thereby, the upper part of the lead wire insertion groove 22m of the floating portion 22 is opened, and the terminal pressing portion 23q of the actuator 23 is separated from the pressed portion 41h of the terminal 40 protruding into the terminal pressing groove 22p of the floating portion 22. At this time, since the force from the actuator 23 is not applied to the terminal 40, the distance between the pair of holding portions 41 k of the terminal 40 positioned in the lead wire insertion groove 22 m of the floating portion 22 is the lead wire of the fluorescent lamp 30. The diameter is larger than 30r. Therefore, the lead wire 30r of the fluorescent lamp 30 can be inserted into the lead wire insertion groove 22m from above, and the lead wire 30r can be easily and accurately positioned between the pair of holding portions 41k.

  After that, the actuator 23 is rotated around the shaft 23j and tilted until it becomes substantially horizontal to be in a closed state. As a result, the lead wire insertion groove 22m of the floating portion 22 is covered by the top wall 23t of the actuator 23, and the lead wire pressing portion 23r of the actuator 23 places the lead wire 30r of the fluorescent lamp 30 in the insertion groove 22m of the floating portion 22 at an appropriate position. Until the terminal pressing portion 23q of the actuator 23 enters the terminal pressing groove 22p of the floating portion 22 and presses the pressed portion 41h of the terminal 40. Then, the pair of arms 41a of the terminal 40 bend inward, the pair of sandwiching portions 41k approach each other, and the lead wire 30r is sandwiched between the sandwiching portions 41k. Thus, the lead wire 30r of the fluorescent lamp 30 and the terminal 40 of the connector 20 are electrically connected. At the same time, the engaged portion 23h of the actuator 23 in the closed position is engaged with the lock claw 22t of the floating portion 22, and the actuator 23 is moved by the lock mechanism 70 including the engaged portion 23h and the lock claw 22t. The closed state is maintained with a predetermined restraining force.

  According to the connector 20 according to the present embodiment, after the actuator 23 is opened and the fluorescent lamp 30 is set, the connection between the lead wire 30r of the fluorescent lamp 30 and the terminal 40 and the connection of the fluorescent lamp 30 can be performed only by closing the actuator 23. Holding is complete.

  Further, even when the held fluorescent lamp 30 is thermally expanded and contracted, the floating part 22 can slide in the axial direction of the fluorescent lamp 30 with respect to the fixed part 21, so that the connector 20 and the fluorescent lamp 30 are caused by thermal expansion and contraction of the fluorescent lamp 30. No stress is generated.

  When the floating portion 22 moves relative to the fixed portion 21 due to thermal expansion and contraction of the fluorescent lamp 30, the lock claw 22t is provided on the floating portion 22, and the engaged portion 23h is provided on the actuator 23 attached to the floating portion 22. Therefore, the lock claw 22t and the engaged portion 23h move integrally, and the relative position between the lock claw 22t and the engaged portion 23h is not shifted, and a stable lock can be achieved. .

  The power source is connected to the connector 20 by using a power plug 60 such as an ordinary plug, a flexible board such as an FPC (flexible printed circuit) or FFC (flexible flat cable), and a conductor. It is extremely simple to prepare a PCB (printed circuit board) or the like and insert it into the insertion window 21m of the fixed portion 21. Of course, the lead wire soldering as described above is unnecessary.

  The fluorescent lamp 30 attached to the connector 20 is removed as follows.

  In order to disengage the engaged portion 23h and the lock claw 22t and open the actuator 23, for example, a tool such as a screwdriver is inserted between the notch portion 23c of the actuator 23 and the abutment 21c of the fixed portion 21, Push down the tool in the manner of an insulator. Since the engaged portion 23h and the lock claw 22t are engaged by the left and right lateral walls 23y, it is preferable to use a bifurcated tool.

  Then, due to the action of the lever, an upward force exceeding the restraining force of the lock mechanism 70 acts on the lower surface of the projection 23d formed at the tip of the actuator 23, and the engaged portion 23h rides on the lock claw 22t, The actuator 23 is opened very easily. Here, the protrusion 23d to which the upward force acts is farthest from the shaft 23j of the actuator 23, so that a moment in the opening direction is efficiently generated in the actuator 23. Therefore, coupled with the effect of the lever, the actuator 23 can be opened by operating the tool with a light force.

  Even if an operator attempts to open the actuator 23 by gripping the left and right lateral walls 23y of the actuator 23 with a finger without using a tool, the left and right lateral walls 23y are extended in a cantilever shape ahead of the top wall 23t. The left and right lateral walls 23y picked by the fingers are bent inward, and the engaged portions 23h formed on the left and right lateral walls 23y are strongly engaged with the lock claws 22t, and the engagement cannot be released. The actuator 23 cannot be opened. In other words, unless a force is applied to the lower surface of the projecting portion 23d using a tool such as a lever, the actuator 23 is very difficult to open and does not open carelessly.

  Thus, according to the connector 20 which concerns on this embodiment, the reliable holding | maintenance at the time of setting the fluorescent lamp 30 as a backlight, and its easy cancellation | release can be made compatible. That is, when the fluorescent lamp 30 is attached to the connector 20, the actuator 23 can be securely locked in the closed position, and the electrical connection between the terminal 40 and the lead wire 30r can be strengthened, and the actuator 23 can be opened to fluoresce. When it is necessary to remove the lamp 30, the actuator 23 can be unlocked very easily.

  As described above, according to the connector 20 according to the present embodiment, the conflicting characteristics of reliable locking and easy unlocking can be achieved, so that the reliability of electrical connection is improved and workability (fluorescent lamp replacement) / productivity is improved. (Soldering) can be improved. Further, since the lock cannot be released unless a tool is used as described above, it is possible to surely prevent the unlocking which is unexpected.

  The present invention is not limited to the above embodiment.

  In the present embodiment, the connector 20 is attached to the frame 11 of the reflecting plate 10, but it may be attached to the chassis of the liquid crystal display instead of the frame 11, and is formed to have a certain degree of rigidity. You may attach directly to the reflecting plate 10. FIG. Further, if a rigid PCB or GND board is inserted as the power supply member 60 from the insertion window 21m and can be firmly connected to the power supply contact portion 45, no other member for supporting the connector 20 is required. 11. Even the chassis is not needed.

  Further, in the present embodiment, an example in which a pair of connectors 20 having the above-described heat expansion / contraction absorption structure is arranged and the fluorescent lamp 30 is set therebetween is illustrated, but only one of the pair is a connector 20 having a heat expansion / contraction absorption structure. The other may be a connector 20 that omits the heat expansion and contraction absorbing structure. In this case, the other connector 20 includes a connector housing 24 in which the fixed portion 21 and the floating portion 22 are integrated.

It is the model perspective view which looked around the reflective plate arrange | positioned at the back surface of a liquid crystal display (not shown) from the liquid crystal display side. It is the model perspective view which looked around the reflector of a liquid crystal display from the anti-liquid crystal display side. It is the elements on larger scale of FIG. It is the IV-IV sectional view taken on the line of FIG. It is the VV sectional view taken on the line of FIG. It is a disassembled perspective view which shows each component of a connector. It is explanatory drawing of the lock nail | claw as an engaging part, (a) is a front view, (b) is a side view, (c) is a top view. It is front sectional drawing which shows a mode that a to-be-engaged part engages with a lock claw.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Frame as fixed system 20 Backlight connector 21 Fixed part 21s Front 21h Rear 21t Ceiling 21r Rail 22 Floating part 22b Boss 22j Bearing 23 Actuator 23j Shaft 30 Fluorescent lamp 40 Terminal 43 Flexible part 50 Cover part

Claims (5)

A fixed part fixed to a fixed system;
A fluorescent lamp is set, and a floating part slidably mounted in the longitudinal direction of the fluorescent lamp on the fixed part,
A method for manufacturing a connector for a backlight having an upper portion mounted on the floating portion and a lower portion mounted on the fixed portion and a terminal having a flexible portion between the upper portion and the lower portion,
The fixed part is composed of a box with the ceiling and back removed,
By attaching the upper part of the terminal to the floating part, a floating part / terminal assembly that is taller than the fixed part is obtained,
The floating part / terminal assembly is inserted into the fixed part from the back of the fixed part with the upper part of the floating part protruding from the ceiling of the fixed part.
A method for manufacturing a backlight connector, comprising: attaching a lower part of a terminal of the floating part / terminal assembly, which has been entered, to the fixing part.   When the floating part / terminal assembly enters the fixed part from the back surface of the fixed part, the boss formed on the floating part / terminal assembly is formed in a groove shape on the inner surface of the fixed part from the back surface to the front surface. The manufacturing method of the connector for backlights of Claim 1 made to engage with the formed rail.   The lower part of the terminal of the said floating part and terminal assembly is attached to the said fixing | fixed part, Then, a cover part is attached to the back surface of the said fixing | fixed part, and the back surface of the said fixing | fixed part is closed with this cover part. A method for manufacturing a connector for backlight.   The back according to claim 3, wherein after the lid is attached to the back surface of the fixed part, an actuator for holding the set fluorescent lamp is rotatably attached to the floating part of the floating part / terminal assembly. Manufacturing method of connector for light. A fixed part fixed to a fixed system;
A fluorescent lamp is set, and a floating part slidably mounted in the longitudinal direction of the fluorescent lamp on the fixed part,
A backlight connector having an upper portion mounted on the floating portion and a lower portion mounted on the fixed portion and a terminal having a flexible portion between the upper portion and the lower portion,
The fixed part consists of a box with the ceiling and back removed,
On the inner surface of the fixed part, a rail formed in a groove shape from the back toward the front,
The floating part is mounted on the floating part, and the floating part / terminal assembly is taller than the fixed part, and
The floating portion / terminal assembly is formed at a lower portion of the floating portion, and the floating portion / terminal assembly is inserted into the fixed portion from the back of the fixed portion with the upper portion of the floating portion protruding from the ceiling of the fixed portion. A boss engaged with the rail when entering,
A lid attached to the back of the fixed part;
An actuator that is attached to the floating part of the floating part / terminal assembly so as to be openable and closable, and that allows the fluorescent lamp to be set in the floating part when opened, and holds the set fluorescent lamp when closed. A connector for backlight characterized by that.

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