JP2008300147A - Connector for lamp and connector unit for lamp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a highly reliable connector unit for a lamp. <P>SOLUTION: The connector unit for a lamp has a retaining section 6 for retaining an end of the lamp 1, a plurality of connector main bodies 2 wherein a connection section 7 brought into contact with a lead section 15 of the lamp 1 is arranged at its upper part and a base board mounting section 5 forming an insertion groove 9 is arranged at its lower part and a connection terminal 12 of the connection section 7 is extended into the insertion groove 9, and a mounting plate 3 wherein the retaining section 6 and connection section 7 are arranged at the upper part by inserting the connector main body 2 into a plurality of insertion holes 40 and the base board mounting section 5 is arranged at the lower part and the connector main body 2 is mounted by making an opening 45 of the insertion groove 9 face at the same side. A conductive section 43 prepared at its end is brought into contact with a connection terminal 12 of the connector body 2 by inserting a printed wiring base board 4 preparing the conductive section 43 at its end into a line of the opening 45. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a lamp connector and a lamp connector unit applied to, for example, a backlight disposed behind a display panel of a transmissive liquid crystal display device, and particularly, a highly reliable lamp connector and lamp connector unit. It is about.

  Conventionally, as a power supply module (connector unit) provided with this kind of lamp holder, there is one proposed by Japanese Patent Laying-Open No. 2006-344602 (Patent Document 1). FIG. 17 is an exploded perspective view of the power supply module proposed by Patent Document 1. In FIG.

  As shown in the figure, the power supply module includes a power supply substrate 101, a connecting plate 102, a large number of lamp holders 103, and a plurality of fastening members 104.

  Each lamp holder 103 passes through a fixing hole 105 formed in the connecting plate 102 at the lower end thereof and is fixed to the connecting plate 102. A plurality of pairs of grooves 106 are formed at one end edge of the connection plate 102 and the power supply substrate 101 at a predetermined interval, and the connection plate 102 holding the lamp holder 103 is placed on the power supply substrate 101. The power supply substrate 101 and the connection plate 102 are connected by placing and inserting both ends of the clip-like fastening member 104 into the groove 106.

  A conductive portion 107 is formed on the power supply substrate 101 corresponding to the lamp holder 103, and the lower end portion of the lamp holder 103 contacts the conductive portion 107 by connecting the power supply substrate 101 and the connecting plate 102. And are electrically connected.

It is described that the connection plate 102 is preferably an electrically insulating material because the connection plate 102 is placed on the power supply substrate 101.
JP 2006-344602 A

  However, this conventional power supply module relies on the fastening member 104 for electrical connection between the lamp holder 103 and the conductive portion 107 of the power supply substrate 101. Therefore, even if the contact pressure between the lamp holder 103 near the fastening member 104 and the conductive portion 107 is maintained at a predetermined value, the contact pressure between the lamp holder 103 and the conductive portion 107 is away from the fastening member 104. There is a problem in reliability because the contact pressure becomes uneven as a whole.

  Further, the clip-like fastening member 104 may loosen or come off due to external force such as vibration or impact, and if that happens, the contact pressure between the lamp holder 103 and the conductive portion 107 further decreases, and this leads to a decrease in reliability.

  Furthermore, when the connecting plate 102 made of an electrically insulating material such as a synthetic resin is used, the distance between the fixed holes 105 varies due to deformation or the like, and the correspondence between the lamp holder 103 and the conductive portion 107 may not be properly maintained. In severe cases, poor connection occurs.

  An object of the present invention is to provide a highly reliable lamp connector and lamp connector unit that eliminates the drawbacks of the prior art.

In order to achieve the above object, the first means of the present invention comprises a connector body,
A holding portion for holding an end portion of the lamp at an upper portion of the connector body, and a connecting portion that comes into contact with a lead portion protruding from the end portion of the lamp;
The connector body has a board mounting portion at a lower portion thereof, an insertion groove into which an end portion of the printed wiring board is inserted is formed in the board mounting portion, and a connection terminal of the connection portion is extended in the insertion groove. It is characterized by being.

  According to a second means of the present invention, in the first means, an attachment locking piece for attaching the connector main body to an attachment plate is provided on the connector main body.

  According to a third means of the present invention, in the first or second means, the insertion groove extends in the horizontal direction at an intermediate position in the thickness direction of the substrate mounting portion. .

  According to a fourth means of the present invention, in any one of the first to third means, the contact terminals are provided in a pair vertically so as to sandwich an end portion of the printed wiring board inserted into the insertion groove. It is characterized by that.

According to a fifth means of the present invention, in any one of the first to fourth means, a latching claw having elasticity is provided on the board mounting portion so as to face the insertion groove,
The locking claw is arranged so as to be fitted into a fitting engagement portion provided in the printed wiring board inserted into the insertion groove.

  According to a sixth means of the present invention, in the second means, the attachment locking piece extends in a vertical direction on a side surface of the connector body, and both end portions are integrally joined to the side surface of the connector body. The intermediate portion floats from the side surface of the connector body and is hollow, and a stepped portion that engages with the mounting plate is formed at the lower end inclined portion.

  According to a seventh means of the present invention, in the sixth means, a receiving portion for receiving the mounting plate is provided in a part of the connector body, and the receiving portion and a step portion of the lower inclined portion of the mounting locking piece. The mounting plate is sandwiched between them.

  According to an eighth means of the present invention, in the sixth or seventh means, the attachment locking piece of the connector main body is disposed at an asymmetrical position in the front-rear or left-right direction of the connector main body. It is.

According to a ninth means of the present invention, there is provided a substrate mounting portion provided with a holding portion for holding an end portion of the lamp and a connecting portion in contact with a lead portion protruding from the end portion of the lamp, wherein an insertion groove is formed. A plurality of connector bodies in which the connection terminals of the connection portion are extended in the insertion groove, and
A plurality of insertion holes are formed at a predetermined interval, the holding portion and the connection portion are disposed above the insertion hole, the substrate mounting portion is disposed below the insertion hole, and the insertion groove A mounting plate on which the connector body is mounted with the opening on the same side,
By inserting a printed wiring board having a large number of conductive portions at the end portions at predetermined intervals into the rows of openings of the insertion grooves, the large number of conductive portions are brought into contact with the connection terminals of the connector body, respectively. It is characterized by being.

  According to a tenth means of the present invention, in the ninth means, the mounting plate and the printed wiring board are separated from each other via a board mounting portion of the connector body, and the mounting board is made of metal. It is characterized by.

  According to an eleventh means of the present invention, in the ninth or tenth means, the fitting recess provided in the insertion hole of the mounting plate is an asymmetrical position before, after, or right and left of the insertion hole of the mounting plate. It is characterized by being arranged.

  The twelfth means of the present invention is the printed wiring board according to any one of the ninth to eleventh means, wherein the mounting plate is made of a metal plate and is inserted into the insertion groove of the connector body attached to the mounting plate. Is separated from the mounting plate.

  According to a thirteenth means of the present invention, in any one of the ninth to twelfth means, the engagement claw provided on the connector body and the fitting engagement portion provided on the printed wiring board. Thus, the printed wiring board inserted into the board mounting portion is prevented from coming off.

  The fourteenth means of the present invention is the thirteenth means according to the thirteenth means, an engagement portion between the locking claw and the fitting engagement portion, a portion where the connection terminal is in contact with a conductive portion of the printed wiring board, The printed wiring board is held by the board mounting portion by the portion where the end portion of the printed wiring board is inserted into the back part of the insertion groove.

  As described above, the present invention, as described above, the insertion groove is formed in the board mounting portion of the connector body, the connection terminal of the connection portion is extended in the insertion groove, and the printed wiring board is inserted into the insertion groove, Since the conductive portion formed on the printed wiring board is in contact with the connection terminal, the contact pressure between the connector main body and the printed wiring board is uniform. Therefore, a highly reliable lamp connector and lamp connector unit can be provided.

Next, embodiments of the present invention will be described with reference to the drawings.
(Backlight configuration)
First, the configuration of the backlight disposed behind the display panel of the transmissive liquid crystal display device that is the subject of the present embodiment will be described with reference to FIG.

  As shown in the figure, a large number of cold cathode fluorescent lamps (hereinafter abbreviated as lamps) 1 are arranged in parallel on the same plane (10 in this embodiment), and both ends of each lamp 1 are connectors. The connector main body 2 is mounted and held on the main body 2 and is electrically connected to the printed wiring board 4 while being held in a row on the mounting plate 3 to form a backlight. In the case of a display panel having a large area, a plurality of backlights are installed in combination.

(Configuration of the connector body)
Next, the configuration of the connector body 2 will be described. FIGS. 1 and 2 are perspective views of the connector body 2 as viewed from the left and right, and FIGS. 3 and 4 are views from the left and right of the connector body 2 before the end of the lamp 1 is inserted. FIG. 5 and FIG. 6 are perspective views as viewed from the left and right sides showing a state in which the end portion of the lamp 1 is mounted and locked to the connector main body 2, and FIG. It is a side view.

  For example, as shown in FIGS. 1 and 7, the connector main body 2 includes a board mounting part 5, a holding part 6 erected on the board mounting part 5, a connection part 7, and a lock part 8. The holding portion 6, the connecting portion 7, and the lock portion 8 are sequentially arranged from the lamp 1 side toward the outside of the lamp 1 along the axial direction of the lamp 1 to be mounted. The board mounting portion 5, the holding portion 6, and the lock portion 8 are integrally formed of a synthetic resin having electrical insulation, and the connection portion 7 is formed of a metal press-work product.

  One side end of the printed wiring board 4 is inserted at an intermediate position in the thickness direction of the board mounting portion 5 (see FIG. 15), and an insertion groove 9 is formed in a horizontal direction from one side end face to an intermediate position. The innermost surface of the insertion groove 9 is a stopper surface 11. A portion of the insertion groove 9 is cut off, and a pair of locking claws 10 having elasticity facing up and down are provided at the cut portion.

  An insertion hole (not shown) for press-fitting the connection portion 7 from below and a concave terminal storage portion 13 for receiving the connection terminal 12 of the connection portion 7 connected to the insertion hole are provided at the center of the lower surface of the board mounting portion 5. Is formed.

  8 is an enlarged cross-sectional view taken along line 2A-A, FIG. 9 is an enlarged cross-sectional view taken along line 8B-B, and FIG. 10 is a partially enlarged side view of the lamp 1.

  As shown in FIG. 10, the end portion 14 of the lamp 1 has a lead portion 15 made of a metal rod or a metal wire protruding outward along the axial direction of the lamp 1. The holding portion 6 is for holding the end portion 14 of the lamp 1, and an end storage portion 16 is formed inside the holding portion 6, and is movable with the fixed holding portion 17 so as to face the end portion storage portion 16. A holding part 18 is provided. As shown in FIG. 10, the fixed holding portion 17 is fixed so as to hold the end portion 14 near the lead portion 15 of the lamp 1 and the movable holding portion 18 is fixed so as to hold the inner end portion 14 thereof. The holding part 17 and the movable holding part 18 are provided apart from each other in the axial direction of the lamp 1, so that the movable holding part 18 is also separated from the connecting part 7.

  In this way, by providing the connecting portion 7 that contacts the lead portion 15 of the lamp 1 and the movable holding portion 18 that holds the end portion 14 of the lamp 1, even if vibration or impact occurs in the lamp 1, the lead The vibration and impact can be dealt with by the flexibility of the movable holding portion 18 while reliably maintaining the connection between the portion 15 and the connecting portion 7.

  The fixed holding portion 17 and the movable holding portion 18 are opened upward so that the lamp 1 can be inserted from above as indicated by an arrow X in FIG. 1, and the end portion 14 of the lamp 1 is inserted inside. A semicircular portion is formed, and the overall shape is substantially U-shaped.

  On both side surfaces of the fixed holding portion 17 and the movable holding portion 18, outer wall portions 19 having substantially the same height as the holding portions 17 and 18 are formed. The fixed holding portion 18 is molded integrally with the outer wall portion 19 and is in a fixed state, but the movable holding portion 18 is provided with a gap 20 between the outer wall portion 19 as shown in FIG.

  The presence of the outer wall portion 19 protects the fixed holding portion 17 and the movable holding portion 18 and can provide a place for the user to grasp the connector. Without the outer wall portion 19, the user directly grips the fixed holding portion 17, the movable holding portion 18, or the lock portion 8, which may adversely affect lamp holding.

  Further, as shown in FIG. 9, the movable holding portion 18 is integrally formed at the distal end portion of the support portion 22, and a gap 21 is provided between the support portion 22 and the holding portion 6. The part is integrally formed with the holding part 6. Therefore, the movable holding part 18 has a structure supported by the holding part 6 in a cantilever shape, and the gap 20 and the gap 21 communicate with each other (see FIG. 8). By thus forming the gaps 20 and 21 around the movable holding portion 18 and supporting them in a cantilever shape, the movable holding portion 18 is moved in the direction indicated by the arrow Y (left and right) and the direction indicated by the arrow Z (up and down) shown in FIG. Direction, and can effectively absorb vibrations, impacts, and the like in the vertical, horizontal, and diagonal directions applied to the mounted lamp 1.

  For example, as shown in FIG. 8, the movable holding portion 18 has a pair of elastic pieces 18a and 18b that are erected so as to face each other at a predetermined interval, and the lamp 1 is placed at a predetermined position on the inner surface of the elastic pieces 18a and 18b. And the movable holding portion 18 (elastic pieces 18a and 18b) can be elastically deformed along the arrow Y direction.

  In the present embodiment, the retaining projection 23 is provided only on the movable holding portion 18, but the retaining projection 23 can also be provided on the fixed holding portion 17. In the present embodiment, both the fixed holding portion 17 and the movable holding portion 18 are used, but it is also possible to use only the movable holding portion 18.

  FIG. 11 is an enlarged perspective view of the connecting portion 7. The connecting portion 7 is opened upward so that the lead portion 15 (not shown) of the lamp 1 can be inserted from above as indicated by an arrow X in the figure, and the lead inserted into the upper end portion of the connecting portion 7. A pair of clamping pieces 24 that elastically clamp the portion 15 from both the left and right sides are provided, and a lead portion storage portion 25 having a bulging portion that conforms to the diameter of the lead portion 15 is formed inside the clamping piece 24. At the lower end portion of the connecting portion 7, the elastic connecting terminals 12 are vertically extended in a substantially horizontal direction.

  The connecting portion 7 is press-fitted from below the substrate mounting portion 5 so that the clamping piece 24 is exposed upward as shown in FIG. 1 and the connection terminal 12 is stored in the terminal storage portion 13 of the substrate mounting portion 5 ( (See FIG. 2). The connection portion 7 is mounted without rattling inside the substrate mounting portion 5 by the pair of fitting claw portions 55 biting into the inside of the substrate mounting portion 5, and in the completed mounting state, as shown in FIG. It appears that the peak part in the middle protrudes slightly toward the inside of the insertion groove 9 formed in the board mounting part 5.

  The lock portion 8 has a function of preventing the lead portion 15 of the lamp 1 from being detached from the connecting portion 7 due to some vibration or impact in a state where the end portion 14 of the lamp 1 is mounted on the connector main body 2, that is, coming out upward. have.

  As shown in FIG. 1, for example, the lock portion 8 includes a first lock portion 26, a second lock portion 27, and a restricting portion 28. The first lock portion 26 and the second lock portion 27 are, for example, shown in FIGS. As shown in FIG. 7, at least the sandwiching piece 24 of the connection portion 7 is disposed so as to face each other.

  The first lock portion 26 is a flat shape with a substantially inverted L-shaped side surface, and its base is integrated with the substrate mounting portion 5 and extends toward the second lock portion 27 side at the tip thereof. A first overlapping portion 29 is formed, and a claw-like convex portion 30 is provided on the first overlapping portion 29.

  The second lock portion 27 is also a flat shape having a substantially inverted L-shaped side surface, and its base is integrated with the substrate mounting portion 5 and extends toward the first lock portion 26 at the tip thereof. A second overlapping portion 31 is formed, and a concave portion 32 including a hole penetrating in the vertical direction is provided on the second overlapping portion 31.

  The base portion side of the first lock portion 26 and the second lock portion 27 is slightly thicker than the tip end portion thereof, and elastic deformation (described later) due to repetition of the first lock portion 26 and the second lock portion 27. Can withstand enough.

  The regulating portion 28 has a substantially T-shaped side surface, and is located between the first lock portion 26 and the second lock portion 27 and outside the connection portion 7 (on the front side in FIG. 1). It is erected from one. On both sides of the upper portion of the restricting portion 28 facing the inner surfaces of the first lock portion 26 and the second lock portion 27 are respectively restricting surfaces 34. The restricting portion 28 is thick so as not to be deformed even when pressed by the first lock portion 26 or the second lock portion 27. In the present embodiment, the restricting portion 28 having a substantially T-shaped side surface is used, but a restricting portion 28 having a cubic shape may be used.

  In the present embodiment, the case where both the first lock portion 26 and the second lock portion 27 have flexibility has been described. However, one lock portion, for example, the first lock portion 26 has flexibility. It is also possible to engage the both by tilting the first lock portion 26 toward the second lock portion 27 side.

  Further, in the present embodiment, a separate restricting portion 28 is installed between the first lock portion 26 and the second lock portion 27, but the restricting portion is provided integrally with one lock portion or both of the lock portions to lock the lock portion. It is possible to prevent excessive falling of the part.

(Attaching the lamp)
Next, a procedure for mounting the lamp 1 will be described.
As shown in FIGS. 1 and 2, when the lamp 1 is not mounted, the first lock portion 26 and the second lock portion 27 open upward and slightly widen toward the top, and the first overlap portion 29 and the second overlap portion 31 is not superposed and is separated, and a gap 33 (see FIG. 1) through which the lead portion 15 of the lamp 1 is inserted is formed. Below the gap 33, the clamping piece 24 of the connecting portion 7 is disposed in an open state.

  When the lamp 1 is inserted from above the connector main body 2 in this state, the end portion 14 (see FIG. 10) of the lamp 1 is fitted inside the fixed holding portion 17 and the movable holding portion 18 of the holding portion 6. When the end portion 14 of the lamp 1 gets over the retaining protrusion 23 provided on the movable holding portion 18, the gap 20 is formed on both sides, so that the movable holding portion 18 extends slightly outward, and finally the lamp 1. The end portion 14 is elastically held inside the movable holding portion 18.

  On the other hand, the lead portion 15 of the lamp 1 passes through the gap 33 between the first overlapping portion 29 and the second overlapping portion 31 and is press-fitted between the holding pieces 24 of the connecting portion 7, and the lead portion 15 is elasticized by the holding pieces 24. Is pinched. Such a state is shown in FIGS.

  Next, the first lock portion 26 and the second lock portion 27 are pushed toward each other toward the restricting portion 28 with the fingertips or jigs (both not shown) of the assembling worker, thereby being shown in FIGS. As shown, the first overlapping portion 29 and the second overlapping portion 31 overlap each other. Due to this polymerization, the convex part 30 formed on the first superposition part 29 is fitted into and engaged with the concave part 32 formed on the second superposition part 31, and the first superposition part 29 and the second superposition part 31 are engaged. It connects and the polymerization state of both is maintained.

  Since the overlapping portions of the first overlapping portion 29 and the second overlapping portion 31 are directly above the sandwiching piece 24 of the connecting portion 7, the lead portion 15 of the lamp 1 is sandwiched by the sandwiching piece 24 even when subjected to vibration or impact. It is possible to prevent mechanically from coming off. This completes the mounting of the lamp 1.

  When the first lock portion 26 and the second lock portion 27 are elastically deformed toward the restricting portion 28 side, an excessive pressing force is applied to the first lock portion 26 or (and) the second lock portion 27. There is a concern that the clamping piece 24 of the connecting portion 7 is crushed and deformed.

  In the present embodiment, in order to prevent this, a restricting portion 28 is provided between the first overlapping portion 29 and the second overlapping portion 31, and an excessive pressing force is applied to the first lock portion 26 or (and) the second lock portion 27. Even if it is added, it is received by the restricting surface 34 so that the first lock part 26 or (and) the second lock part 27 is not in direct contact with the holding piece 24, thereby preventing deformation of the holding piece 24. ing.

  As described above, the first overlapping portion 29 and the second overlapping portion 31 are overlapped and engaged with each other, so that the first lock portion 26 and the second lock portion 27 are inward of each other, and their inner surfaces are connected to the connecting portion 7. It stays at a position close to the sandwiching piece 24.

  When rolling vibration occurs in the lamp 1 in this state, the vibration is also transmitted to the holding piece 24, but the inner surfaces of the first lock portion 26 and the second lock portion 27 are in the vicinity of the holding piece 24. And the excessive roll of the clamping piece 24 is suppressed by the inner surface, and the deformation of the clamping piece 24 is prevented. Since the first lock portion 26 and the second lock portion 27 are mechanically connected to each other by the overlapping portions 29 and 31, the resistance force against the roll of the first lock portion 26 and the second lock portion 27 is increased. This is useful for preventing deformation of the clamping piece 24.

(Assembly of the connector unit)
Next, the assembly procedure of the connector unit will be described.
As shown in FIG. 16, the connector unit 35 is configured by attaching a plurality of connector bodies 2 to the attachment plate 3 and combining them with the printed wiring board 4.

In order to attach the connector body 2 to the mounting plate 3, attachment locking pieces 36 are provided on both side surfaces of the connector body 2. As shown in FIG. 7, when the connector main body 2 is viewed from the side, the mounting position of the attachment locking piece 36 is the center position of the assembly portion of the holding portion 6, the connecting portion 7 and the lock portion 8 (as indicated by a one-dot chain line C). It is displaced to one side (the holding part 6 side in this embodiment) rather than the position shown. Further, as shown in FIGS. 1 and 2, the lateral width W1 of the holding portion 6 is designed to be wider than the lateral width W2 of the connecting portion 8 (W1> W2).
In the case of the present embodiment, the mounting locking pieces 36 are provided on both side surfaces of the holding portion 6 along the vertical direction, the side surface shape is substantially chevron, and both end portions of the mounting locking pieces 36 are connected to the holding portion 6. The intermediate portion is joined to form a doubly-supported beam, and the intermediate portion floats from the side surface of the holding portion 6 to become a hollow shape, whereby a predetermined elastic force is applied to the mounting locking piece 36. For example, as shown in FIG. 7, a large number of minute step portions 38 extending in the horizontal direction are formed on the outer surface of the lower end inclined portion 37 of the attachment locking piece 36.

  As shown in FIGS. 2 and 7, the board mounting portion 5 protrudes from the assembly portion of the holding portion 6, the connecting portion 7, and the lock portion 8 to form a horizontal receiving portion 39. The lower end inclined portion 37 (step portion 38) extends in a direction orthogonal to the horizontal plane.

  FIG. 12 is a perspective view of the mounting plate 3, and FIG. 13 is a partially enlarged plan view of the mounting plate 3. As shown in FIG. 12, the mounting plate 3 has a long shape, and a large number (10 in this embodiment) of insertion holes 40 are formed in the longitudinal direction at a predetermined pitch. If the mounting plate 3 is made of synthetic resin, there is a concern that the pitch accuracy of the insertion hole 40 may be distorted due to deformation or the like, and sufficient mechanical strength cannot be obtained. The metal mounting plate 3 is used because it can be kept high and has excellent mechanical strength.

  The planar shape of the insertion hole 40 is substantially rectangular, and a fitting recess into which a mounting locking piece 36 projecting from the connector body 2 is fitted and locked at both side edges of the insertion hole 40 as shown in FIG. 41 is continuously provided. As described above, the mounting locking piece 36 is provided at a position shifted from the center of the assembly portion of the holding portion 6, the connection portion 7, and the lock portion 8. 3, the distance L1 from one end edge of the insertion hole 40 to the fitting recess 41 and the distance L2 from the other end edge of the insertion hole 40 to the fitting recess 41 as shown in FIG. Are not equal (L1 ≠ L2).

  As shown in FIG. 13, the lateral width W3 on the near side of the insertion hole 40 is slightly longer than the lateral width W1 of the holding portion 6 of the connector body 2 (see FIG. 2). The lateral width W4 is slightly longer than the lateral width W2 (see FIG. 1) of the connecting portion 8 of the connector body 2, so that the lateral width W3 is longer than the lateral width W4 (W3> W4). .

  The connector main body 2 is inserted into the insertion hole 40 from below the mounting plate 3, and the insertion hole 40 has a dimensional relationship such that W3 (W1)> W4 (W2), L1 ≠ L2, that is, the connector main body. The engaging portion provided between the mounting plate 3 and the mounting plate 3 can be asymmetrical in the front and rear (this embodiment) or right and left to prevent erroneous insertion into the mounting plate 3, and the connector body 2 can be inserted in an appropriate direction. .

  In the middle of inserting the connector main body 2 into the insertion hole 40 of the mounting plate 3, the mounting locking piece 36 protruding from the side surface of the connector main body 2 abuts on the edge of the fitting recess 41 and is slightly inwardly elastic. It passes through the fitting recess 41 while being deformed. When the receiving portion 39 provided on the connector main body 2 comes into contact with the lower surface of the mounting plate 3, the insertion of the connector main body 2 is stopped, and the mounting locking piece 36 has its restoring force to cause the edge of the fitting recess 41 The stepped portion 38 provided on the lower inclined portion 37 of the attachment locking piece 36 is engaged with the edge portion of the fitting recess 41.

  Accordingly, the step portion 38 functions as a slip stopper, the mounting plate 3 is sandwiched between the step portion 38 and the receiving portion 39, and the connector body 2 is attached to the mounting plate 3 in a stable manner. In the present embodiment, the planar receiving portion 39 is used, but it may be a continuous or discontinuous receiving portion 39 such as a rib.

  This state is shown in FIG. 7, and the connector main body 2 is attached to the mounting plate 3 by the contact between the mounting plate 3 and the receiving portion 39 and the latching of the step portion 38 to the end edge portion of the fitting recess 41. It is attached in a stable state.

  FIG. 14 is a perspective view of the printed wiring board 4 for power supply. As shown in the figure, the printed wiring board 4 is also elongated, and a notch 42 formed inward from one side edge of the printed wiring board 4 has a predetermined length along the longitudinal direction of the printed wiring board 4. A large number (10 in the present embodiment) are formed at a pitch, and a conductive pattern 43 for terminal connection is provided on the back side of the notch 42. The conductive pattern 43 is provided on both upper and lower surfaces of the printed wiring board 4. Furthermore, square hole-like fitting engagement portions 44 are formed at predetermined positions on both sides of the cutout portion 42.

  In the present embodiment, the square hole-like insertion engagement portion 44 is formed, but it may be a cut-in insertion engagement portion 44 slightly cut in the longitudinal direction of the printed wiring board 4 from the side end of the cutout portion 42. .

  The printed wiring board 4 is inserted into the row of the connector main bodies 2 attached to the mounting plate 3 as described above. As shown in FIG. 7, the insertion groove 9 of the connector main body 2 is open at one end face, so that the openings 45 of the insertion groove 9 are arranged in a line along the longitudinal direction of the mounting plate 3. The end edge 50 on the open side of the cutout portion 42 in the printed wiring board 4 is inserted first toward the row of the openings 45, the end edge 50 faces the insertion groove 9, and the cutout portion 42. Faces the connection terminal 12.

  A locking claw 10 is provided in the middle of the insertion groove 9 so as to face each other. The locking claw 10 includes a base portion 46 extending in the insertion direction of the printed wiring board 4, an inclined surface 47 that is gradually inclined from the tip of the base portion 46 toward the inside of the insertion groove 9, and the inclined surface 47. And a vertical end face 49 provided at the tip of the protrusion 48, and has elasticity as a whole.

  When the printed wiring board 4 is inserted to some extent, the edge 50 of the printed wiring board 4 collides with the inclined surface 47 of the locking claw 10, and the conductive pattern 43 formed on the printed wiring board 4 reaches the vicinity of the connection terminal 12.

  When the printed wiring board 4 is further inserted, the upper locking claw 10 warps upward by the edge 50, the lower locking claw 10 warps downward, and a repulsive force is generated in the upper and lower locking claws 10. On the other hand, the portion of the printed wiring board 4 on which the conductive pattern 43 is formed on the upper and lower sides is press-fitted between the upper and lower connection terminals 12 and the upper and lower connection terminals 12 are pressed and deformed to generate a repulsive force. As described above, the insertion of the printed wiring board 4 is continued in a stable state in which the printed wiring board 4 is elastically held by the upper and lower locking claws 10 and the upper and lower connecting terminals 12, and the conductive pattern 43 is connected to the connection terminals in the meantime. Thus, the conductive pattern 43 is self-cleaned.

  FIG. 15 is a side view of the connector unit 35 showing a state where the insertion of the printed wiring board 4 is completed. As shown in the figure, when the edge 50 of the printed circuit board 4 abuts or approaches the stopper surface 11 located on the innermost side of the insertion groove 9, the locking claw 10 loses the support of the printed circuit board 4, almost simultaneously. The protruding portion 48 of the locking claw 10 is fitted from above and below into a square hole-like fitting engagement portion 44 formed on the printed wiring board 4. At this time, the connection terminal 12 has reached the normal connection position with the conductive pattern 43.

  In the assembled state of the connector unit 35 of FIG. 15, even if a force in the pulling direction acts on the printed wiring board 4, the inner surface of the square hole-like fitting engagement portion 44 formed on the printed wiring board 4 is engaged. The contact with the vertical end surface 49 of the pawl 10 prevents the printed wiring board 4 from being pulled out.

  As shown in FIG. 15, the connector main body 2 and the printed wiring board 4 include a board connection portion 51 in which the connection terminal 12 and the conductive pattern 43 are in elastic contact, and a protrusion 48 of the locking claw 10. Is engaged with a positioning engagement portion 52 engaged with the front end storage recess 53 having the stopper surface 10 at the back of the insertion groove 9 by a front end holding portion 54 into which the edge 50 of the printed wiring board 4 is fitted. Therefore, the connection / linkage between the two is extremely stable. In the case of the present embodiment, since the board connecting portion 51, the positioning engaging portion 52, and the tip holding portion 54 are formed on both sides of the connector main body 2, the connection / connection is further stabilized.

  Further, since the board connecting portion 51, the positioning engagement portion 52, and the tip holding portion 54 are formed for each connector body 2, the connection / connection of each connector body 2 to the printed wiring board 4 even when viewed from the whole connector unit. Is very stable.

  In this embodiment, as shown in FIG. 15, the board connection portion 51, the positioning engagement portion 52 and the tip holding portion 54 are formed in this order along the insertion direction of the printed wiring board 4 with respect to the connector body 2. It is also possible to form the positioning engaging portion 52, the board connecting portion 51, and the tip holding portion 54 in this order by changing the above.

  15 and 16, reference numeral 56 denotes a capacitor which is mounted on the printed wiring board 4 before being incorporated in the connector unit 35 and is electrically connected to the conductive pattern 43.

  As shown in FIG. 15, in the state where the connector main body 2 and the printed wiring board 4 are combined, the mounting plate 3 and the printed wiring board 4 are separated from each other with a predetermined interval. Can be used.

  In this embodiment, the connector body itself provided with the board mounting portion, the holding portion, the connection portion, the lock portion, and the like is used as a connector. However, another member may be added to the connector body to form a connector.

  In this embodiment, the case where the lamp connector is used for the backlight of the liquid crystal display device has been described. However, the present invention is not limited to this, and for example, lamps in other technical fields such as in-vehicle lights or indoor lights. It can also be applied to connectors.

It is the perspective view which looked at the single-piece | unit of the connector main body which concerns on embodiment of this invention from the left side. It is the perspective view which looked at the connector main body from the right side. It is the perspective view seen from the left side which shows the state before the lock | rock which inserted the edge part of the lamp | ramp into the connector main body. It is the perspective view which looked at the connector main body from the right side. It is the perspective view seen from the left side which shows the state where the edge part of the lamp | ramp was mounted | worn and locked to the connector main body. It is the perspective view which looked at the connector main body from the right side. It is a side view of the connector main body attached to the attachment plate. It is an expanded sectional view on a 2A-A line. It is an expanded sectional view on the line B-B. It is a partially expanded side view of the lamp | ramp used in embodiment of this invention. It is an expansion perspective view of the connection part used in the embodiment of the present invention. It is a perspective view of a mounting plate used in an embodiment of the present invention. It is a partially expanded plan view of the mounting plate. It is a perspective view of a printed wiring board used in an embodiment of the present invention. It is a side view of the connector unit concerning the embodiment of the present invention. It is a perspective view of the backlight which concerns on embodiment of this invention. It is a disassembled perspective view of the power supply module proposed conventionally.

Explanation of symbols

  1: cold cathode fluorescent lamp, 2: connector body, 3: mounting plate, 4: printed wiring board, 5: board mounting portion, 6: holding portion, 7: connecting portion, 8: locking portion, 9: insertion groove, 10 : Locking claw, 11: Stopper surface, 12: Connection terminal, 13: Terminal storage part, 14: End part of lamp, 15: Lead part, 16: End part storage part, 17: Fixed holding part, 18: Movable holding Part, 18a, 18b: elastic piece, 19: outer wall part, 20: gap, 21: gap, 22: support part, 23: retaining protrusion, 24: clamping piece, 25: lead part storage part, 26: first lock Part, 27: second lock part, 28: restricting part, 29: first overlapping part, 30: convex part, 31: second overlapping part, 32: recessed part, 33: gap, 34: restricting surface, 35: connector unit 36: mounting locking piece, 37: lower end inclined part, 38: step part, 39: receiving part, 40: insertion hole, 41: fitting recess, 42: notch part, 43: conductive pattern, 4 : Fitting engagement part, 45: opening, 46: base part, 47: inclined surface, 48: protruding part, 49: vertical end face, 50: edge, 51: substrate connection part, 52: positioning engagement part, 53: tip Storage concave part, 54: tip holding part, 55: fitting claw part, 56: capacitor, X: lamp insertion direction, Y, Z: moving direction of movable holding part, W1: lateral width of holding part, W2: connection part Width, W3, W4: The width of the insertion hole.

Claims (14)

It has a connector body,
A holding portion for holding an end portion of the lamp at an upper portion of the connector body, and a connecting portion that comes into contact with a lead portion protruding from the end portion of the lamp;
The connector body has a board mounting portion at a lower portion thereof, an insertion groove into which an end portion of the printed wiring board is inserted is formed in the board mounting portion, and a connection terminal of the connection portion is extended in the insertion groove. A connector for a lamp.   2. The lamp connector according to claim 1, wherein an attachment locking piece for attaching the connector body to a mounting plate is provided on the connector body.   3. The lamp connector according to claim 1, wherein the insertion groove extends in the horizontal direction at an intermediate position in the thickness direction of the board mounting portion.   4. The lamp connector according to claim 1, wherein the contact terminals are provided in upper and lower pairs so as to sandwich an end portion of the printed wiring board to be inserted into the insertion groove. 5. Characteristic lamp connector. The lamp connector according to any one of claims 1 to 4, wherein a locking claw having elasticity is provided on the board mounting portion so as to face the insertion groove,
The lamp connector, wherein the locking claw is disposed so as to be fitted into a fitting engagement portion provided in the printed wiring board inserted into the insertion groove.   3. The lamp connector according to claim 2, wherein the attachment locking piece extends in a vertical direction on a side surface of the connector body, and both end portions are integrally joined to the side surface of the connector body, and an intermediate portion is A lamp connector, characterized in that it floats from the side surface of the connector body and becomes hollow, and a stepped portion that engages with the mounting plate is formed at a lower end inclined portion.   7. The lamp connector according to claim 6, wherein a receiving portion for receiving the mounting plate is provided in a part of the connector main body, and the mounting plate is provided between the receiving portion and a step portion of a lower end inclined portion of the mounting locking piece. A connector for a lamp, characterized in that it is sandwiched.   8. The lamp connector according to claim 6, wherein the attachment locking pieces of the connector main body are disposed at asymmetric positions before and after the connector main body or on the left and right. A holding portion for holding the end portion of the lamp and a connecting portion contacting the lead portion protruding from the end portion of the lamp are provided in the upper portion, and a board mounting portion in which an insertion groove is formed is provided in the lower portion. A number of connector bodies extending in the insertion groove, and
A plurality of insertion holes are formed at a predetermined interval, the holding portion and the connection portion are disposed above the insertion hole, the substrate mounting portion is disposed below the insertion hole, and the insertion groove A mounting plate on which the connector body is mounted with the opening on the same side,
By inserting a printed wiring board having a large number of conductive portions at the end portions at predetermined intervals into the rows of openings of the insertion grooves, the large number of conductive portions are brought into contact with the connection terminals of the connector body, respectively. A lamp connector unit characterized by   10. The lamp connector unit according to claim 9, wherein the mounting plate and the printed wiring board are separated from each other through a board mounting portion of the connector body, and the mounting plate is made of metal. Connector unit for lamp.   11. The lamp connector unit according to claim 9 or 10, wherein the fitting recess provided in the insertion hole of the mounting plate is disposed at an asymmetrical position before and after the insertion hole of the mounting plate or right and left. A connector unit for a lamp characterized by that.   12. The lamp connector unit according to claim 9, wherein the mounting plate is made of a metal plate, and the printed wiring board inserted into the insertion groove of the connector body attached to the mounting plate is the mounting unit. A connector unit for a lamp, wherein the lamp connector unit is separated from a plate.   The lamp connector unit according to any one of claims 9 to 12, wherein the engaging claw provided on the connector main body and the fitting engagement portion provided on the printed wiring board engage with each other. A lamp connector unit, wherein the printed wiring board inserted into the board mounting portion is prevented from coming off.   14. The lamp connector unit according to claim 13, wherein an engagement portion between the locking claw and the fitting engagement portion, a portion where the connection terminal is in contact with a conductive portion of the printed wiring substrate, and the printed wiring substrate. The printed wiring board is held by the board mounting portion by a portion where the end of the printed wiring board is inserted into the back of the insertion groove.

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