JP2009301958A - Attaching structure of electric connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an attaching structure of an electric connector for preventing dislocation of a fluorescent lamp. <P>SOLUTION: A backlight device includes a contact forming unit 36 to which an outer lead 8c of a cold cathode tube 8 is connected and a first electric connector 11 which includes a housing 35 to support the contact forming unit 36. The housing 35 is supported by a rear wall 13 of plate shape. A lock mechanism 80 for locking the housing 35 to the rear wall 13 is provided. The housing 35 is inserted along an insertion direction D1 into a first through-hole 21 of the rear wall 13. The housing 35 inserted into the first through-hole 21 slides along a locking direction E1 parallel to the axial direction S of the cold cathode tube 8, and thereby, moves to a locking position to be locked by the locking mechanism 80 from a lock releasing position in which locking by the locking mechanism 80 is released. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electrical connector mounting structure.

A backlight device provided in a liquid crystal display device usually includes a plurality of fluorescent tubes and a plurality of electrical connectors connected to these fluorescent tubes (see, for example, Patent Document 1). In Patent Document 1, a plurality of electrical connectors are attached to a plate-shaped holder to form a subassembly, and then the electrical connectors are connected to a circuit board.
JP 2007-257881 A

  In Patent Document 1, the electrical connector is attached to the holder as follows. That is, first, the housing of the electrical connector is inserted through the mounting hole of the holder. Then, the housing is fixed to the holder by sliding the housing in the longitudinal direction of the holder. The sliding direction at this time is orthogonal to the axial direction of the fluorescent tube. For this reason, when the housing of the electrical connector is displaced in the sliding direction with respect to the holder, the end portion of the fluorescent tube connected to the electrical connector is also displaced in the sliding direction. In this case, the fluorescent tube is inclined with respect to the normal position.

  The present invention has been made under such a background, and an object thereof is to provide an electrical connector mounting structure capable of preventing the displacement of a fluorescent tube.

  In order to achieve the above object, an invention according to claim 1 is directed to an electrical connector including a conductive contact forming body to which a terminal at an end of a fluorescent tube is connected, and an insulating housing for holding the contact forming body. And a plate-like holding member for holding the housing, and a lock mechanism for locking the housing to the holding member, wherein the holding member is formed along a predetermined depth direction. The housing can be inserted into the holding portion along a predetermined insertion direction corresponding to the depth direction, and the housing inserted through the holding portion is arranged in the axial direction of the fluorescent tube. The lock position locked by the lock mechanism from the unlock position where the lock mechanism is unlocked by moving relative to the holding member along a predetermined parallel lock direction. A mounting structure for an electrical connector, characterized in that it is movable in.

  According to the present invention, the housing moves from the unlocked position to the locked position by moving relative to the holding member along the locking direction parallel to the axial direction of the fluorescent tube. Therefore, when locking the housing with respect to the holding member, it is not necessary to move the housing in a direction orthogonal to the axial direction of the fluorescent tube. Thereby, it is possible to prevent the terminal of the fluorescent tube connected to the electrical connector from being displaced in the direction orthogonal to the axial direction of the fluorescent tube. As a result, the fluorescent tube can be prevented from being inclined with respect to the normal direction.

The invention according to claim 2 is the electrical connector mounting structure according to claim 1, wherein the holding portion includes an insertion hole that penetrates the holding member in the depth direction. According to the present invention, the holding portion can be formed with a simple configuration in which the insertion hole is formed in the holding member.
A third aspect of the present invention is the mounting structure of the electrical connector according to the first or second aspect, wherein the housing at the lock position covers the insertion hole. According to the present invention, foreign matter such as dust can be prevented from accumulating at the peripheral edge of the insertion hole.

According to a fourth aspect of the present invention, in the electrical connector according to any one of the first to third aspects, the locking direction is along a direction away from an end of the fluorescent tube in a direction parallel to the axial direction of the fluorescent tube. This is the mounting structure.
According to the present invention, it is possible to prevent the housing in the locked position from moving further away from the fluorescent tube. Thereby, it is possible to prevent the connection between the terminal of the fluorescent tube and the contact forming body of the electrical connector from being inadvertently released due to vibration or impact.

  According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the lock mechanism includes a coupling portion provided in the holding portion and a coupled portion provided in the housing. In the electrical connector mounting structure, the coupling portion and the coupled portion are coupled to each other when in the locked position. According to the present invention, the housing can be locked by the coupling between the coupling portion and the coupled portion.

  According to a sixth aspect of the present invention, in the fifth aspect, the coupling portion includes a sandwiched portion, the coupled portion includes a sandwiching portion, and when the housing is in the locked position, the sandwiched portion is It is an attachment structure of an electrical connector that is clamped by the clamping portion in a direction parallel to the insertion direction. According to the present invention, it is possible to prevent the housing from moving in a direction parallel to the insertion direction with respect to the holding member due to the coupling between the sandwiched portion and the sandwiching portion.

  According to a seventh aspect of the present invention, in the sixth aspect, the sandwiching portion and the sandwiched portion each extend along the locking direction, and the housing moves from the unlocking position to the locking position. An electric connector mounting structure in which the sandwiched portion is sandwiched by the sandwiching portion. According to the present invention, the sandwiched portion can be sandwiched by the sandwiching portion by a simple operation of moving the housing to the lock position.

The invention according to claim 8 is the electrical connector mounting structure according to claim 6 or 7, wherein a plurality of the sandwiching portions and the sandwiched portions are provided along the locking direction. According to the present invention, it is possible to reliably prevent the both end portions of the housing in the locking direction from moving in a direction parallel to the insertion direction with respect to the holding member.
The invention according to claim 9 is the invention according to claim 8, wherein the sandwiching portion and the sandwiched portion that are relatively on the lock position side and the sandwiching portion and the sandwiched portion that are relatively on the lock release position side are This is an electrical connector mounting structure with different lengths in directions.

According to the present invention, the correct orientation of the housing with respect to the locking direction can be identified by the clamping part and the clamped part relatively on the lock position side and the clamping part and the clamped part relatively on the lock release position side. . Thereby, a housing can be assembled | attached to a correct direction reliably with respect to a holding | maintenance part.
A tenth aspect of the present invention is the housing according to any one of the first to ninth aspects, wherein the locking mechanism is opposed to a predetermined orthogonal direction orthogonal to both the locking direction and the insertion direction. A pair of first portions provided on the holding portion and a pair of second portions provided opposite to each other in the orthogonal direction, and when the housing is in the locked position, the pair of second portions The portion is an electrical connector mounting structure that sandwiches the pair of first portions in the orthogonal direction.

According to the present invention, the pair of second portions sandwich the pair of first portions in the orthogonal direction, thereby preventing the housing from moving in the orthogonal direction with respect to the holding member.
An eleventh aspect of the present invention is that, in any one of the first to tenth aspects, the locking mechanism is provided in the pair of third portions that are provided in the housing and face each other in the locking direction, and in the holding portion. And a pair of fourth portions opposed to each other in the locking direction, and when the housing is in the locked position, the pair of fourth portions are configured so that the pair of third portions are parallel to the locking direction. An electrical connector mounting structure sandwiched in a direction.

According to the present invention, the pair of fourth portions sandwich the pair of third portions in the locking direction, whereby the housing can be prevented from moving in a direction parallel to the locking direction with respect to the holding member.
According to a twelfth aspect of the present invention, there is provided an electrical connector including a conductive contact forming body to which a terminal at an end of a fluorescent tube is connected, an insulating housing for holding the contact forming body, and the housing. A plate-like holding member and a lock mechanism for locking the housing to the holding member, the holding member including a holding portion formed along a predetermined depth direction. The housing can be inserted along a predetermined insertion direction corresponding to the depth direction, and the housing inserted through the holding portion is arranged around a reference axis extending in a direction parallel to the depth direction. The lock that is locked by the lock mechanism from the unlocked position that is unlocked by the lock mechanism by moving with respect to the holding member with respect to the predetermined lock direction along A mounting structure for an electrical connector, characterized in that it is movable in location.

  According to the present invention, the housing moves from the unlocked position to the locked position by moving relative to the holding member along the locking direction around the reference axis. Therefore, when the housing is locked with respect to the holding member, it is not necessary to linearly move the housing in a direction perpendicular to the axial direction of the fluorescent tube. As a result, the housing can be prevented from being displaced in the direction perpendicular to the axial direction of the fluorescent tube, and the terminal of the fluorescent tube connected to the electrical connector is displaced in the direction perpendicular to the axial direction of the fluorescent tube. Can be prevented. As a result, the fluorescent tube can be prevented from being inclined with respect to the normal direction. Further, when the housing is displaced from the unlocked position to the locked position, it is not necessary to move the housing linearly, so there is no need to provide a space for linearly moving the housing, and the holding portion can be made small.

A thirteenth aspect of the present invention is the electrical connector mounting structure according to the twelfth aspect, wherein the holding portion includes an insertion hole that penetrates the holding member in the depth direction. According to the present invention, the holding portion can be formed with a simple configuration in which the insertion hole is formed in the holding member.
A fourteenth aspect of the present invention is the electrical connector mounting structure according to the twelfth or thirteenth aspect, wherein the housing in the locked position covers the insertion hole. According to the present invention, foreign matter such as dust can be prevented from accumulating at the peripheral edge of the insertion hole.

  A fifteenth aspect of the present invention is that, in any one of the twelfth to fourteenth aspects, the lock mechanism includes a coupling portion provided in the holding portion and a coupled portion provided in the housing. In the electrical connector mounting structure, the coupling portion and the coupled portion are coupled to each other when in the locked position. According to the present invention, the housing can be locked by the coupling between the coupling portion and the coupled portion.

  According to a sixteenth aspect of the present invention, in the fifteenth aspect, the coupling portion includes a sandwiched portion, the coupled portion includes a sandwiching portion, and the sandwiched portion is disposed when the housing is in the locked position. It is an attachment structure of an electrical connector that is clamped by the clamping portion in a direction parallel to the insertion direction. According to the present invention, it is possible to prevent the housing from moving in a direction parallel to the insertion direction with respect to the holding member due to the coupling between the sandwiched portion and the sandwiching portion.

According to a seventeenth aspect of the present invention, in the sixteenth aspect, the sandwiching portion includes an upper portion along one of the pair of main surfaces of the holding member and a lower side portion along the other of the pair of main surfaces. The upper part and the lower part are mounting structures for electrical connectors that are spaced apart with respect to the locking direction.
According to the present invention, when the housing is viewed along the lock direction, the number of places where the clamping portions are arranged can be increased. As a result, it can prevent more reliably that a housing inclines with respect to an insertion direction.

According to an eighteenth aspect of the present invention, in the seventeenth aspect, the peripheral edge of the holding portion includes a facing portion facing the upper portion of the housing at the locked position, and a convex portion is formed on one of the upper portion and the facing portion. In addition, the electrical connector mounting structure is such that when the concave portion is formed on the other side and the housing is in the locked position, the convex portion is fitted into the concave portion.
According to the present invention, the rotation of the housing can be prevented by fitting the convex portion into the concave portion. Thereby, it can prevent that a housing rotates carelessly with respect to a holding member.

According to a nineteenth aspect of the present invention, in any one of the twelfth to eighteenth aspects, the lock mechanism is provided in the housing and includes a first annular portion that surrounds the reference axis and the holding portion. It is the attachment structure of the electrical connector containing the 2nd annular part surrounding 1 annular part.
According to the present invention, when the second annular portion surrounds the first annular portion, the electrical connector moves relative to the holding member in the direction orthogonal to the reference axis, that is, the direction orthogonal to the insertion direction. Can be prevented.

Preferred embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a schematic plan sectional view showing a schematic configuration of a liquid crystal display device including an electrical connector according to an embodiment of the present invention. Referring to FIG. 1, a liquid crystal display device 1 is used as a monitor of a television or a personal computer, for example.
The liquid crystal display device 1 includes a main housing 2, a liquid crystal panel 3, and a backlight device 4.

The main housing 2 is formed in a box shape and has an open front.
The liquid crystal panel 3 is a non-self-luminous display panel and is attached to an opening on the front surface of the main housing 2. The front surface 3 a of the liquid crystal panel 3 faces the front of the main housing 2, and the back surface 3 b faces the rear of the main housing 2.
The backlight device 4 is for irradiating the liquid crystal panel 3 with light, and is accommodated in the main housing 2. The backlight device 4 includes a housing 5, a circuit board 6 as a connection member, an inverter circuit 7, a cold cathode tube 8 as a fluorescent tube, and a first electrical connector 11 directly supported by the housing 5. And a second electrical connector 12.

The housing 5 is a housing of the backlight device 4, and has a function of directly holding the first and second electrical connectors 11 and 12, a function of housing the cold cathode tube 8, and light from the cold cathode tube 8. Is reflected to the liquid crystal panel 3 side.
The housing 5 is formed in a bathtub shape using, for example, a metal plate. The housing 5 is disposed on the back surface 3 b side of the liquid crystal panel 3 and includes a rear wall 13 as a holding member and a peripheral wall 14 extending from the outer peripheral edge portion 13 a of the rear wall 13.

The rear wall 13 forms a mounting structure 9 for the first electrical connector 11 in cooperation with the first electrical connector 11. The rear wall 13 is disposed behind the cold cathode tube 8 with respect to the front-rear direction of the main housing 5. The rear wall 13 has a flat plate shape and is arranged in parallel with the cold cathode tube 8. The rear wall 13 is fixed to the main housing 5 using mounting members 15 and 16 such as brackets.
A first insertion hole 21 serving as a holding portion through which a housing 35 (described later) of the first electrical connector 11 is inserted and held in the rear wall 13 and a second electrical connector 12 is inserted and held in the rear wall 13. Two insertion holes 22 are formed through. The first insertion hole 21 and the second insertion hole 22 are separated along the left-right direction of the main housing 5.

  The circuit board 6 is disposed behind the rear wall 13 with respect to the front-rear direction of the housing 5, and is parallel to the rear wall 13. The circuit board 6 includes a front surface 6a facing the back surface 3a of the liquid crystal panel 3 and a back surface 6b facing the opposite side to the front surface 6a. Conductor patterns 24 and 25 as conductive portions are formed on the back surface 6b of the circuit board 6, and a conductor pattern 26 is formed on the back surface 6b. The conductor patterns 25 and 26 are electrically connected to each other by a via hole 28.

  The inverter circuit 7 is connected to the conductor patterns 24 and 25 formed on the back surface 6 b of the circuit board 6. The inverter circuit 7 is for supplying driving power to the cold cathode tube 8, and is mounted on the back surface 6 b of the circuit board 6. The inverter circuit 7 and each cold cathode tube 8 are electrically connected to each other using the conductor pattern 24 of the circuit board 6, the first electrical connector 11, the second electrical connector 12, the conductor pattern 26, the via hole 28, and the conductor pattern 25. It is connected.

The cold cathode tube 8 is a backlight of the liquid crystal panel 3. A plurality of cold cathode tubes 8 are provided between the liquid crystal panel 3 and the rear wall 13 of the housing 5 (only one cold cathode tube 8 is shown in FIG. 1). The number of cold cathode tubes 8 is, for example, two per inch of the liquid crystal panel 3.
Each cold cathode tube 8 is arranged at a predetermined interval in the vertical direction (direction perpendicular to the paper surface) of the main housing 5 so as to irradiate the liquid crystal panel 3 with light. The longitudinal direction of each cold-cathode tube 8 is along the left-right direction of the main housing 5 and is parallel to the back surface 3 b of the liquid crystal panel 3. In FIG. 1, only one cold cathode tube 8, first electrical connector 11, and second electrical connector 12 are shown.

The cold cathode tube 8 includes a long cylindrical main body portion 8a and outer leads 8c and 8c as a pair of terminals provided on each of a pair of end portions 8b and 8b of the main body portion 8a. .
The main body 8a is, for example, a glass member having a diameter of about several mm to several tens of mm. The outer lead 8c is a shaft-like conductive member made of metal such as soft iron, and protrudes in parallel with the main body 8a from each end 8b of the main body 8a. The outer lead 8c has a diameter of, for example, about 1 mm and a length of about several mm.

The outer lead 8c on one end side of the body portion 8a of the cold cathode tube 8 is connected to the first electrical connector 11, and the outer lead 8c on the other end side of the body portion 8a of the cold cathode tube 8 is connected to the second electrical connector 11. Connected to the electrical connector 12.
The first electrical connector 11 is for making an electrical connection between the cold cathode tube 8 and the conductor pattern 24 of the circuit board 6. The first electrical connector 11 is disposed on one end side of the main body 8 a of each cold cathode tube 8 and is inserted through the corresponding first insertion hole 21 of the rear wall 13.

The second electrical connector 12 is for making an electrical connection between the cold cathode tube 8 and the conductor pattern 26 of the circuit board 6. The second electrical connector 12 is disposed on the other end side of each cold cathode tube 8 and is inserted through the corresponding second insertion hole 22 of the rear wall 13. The second electrical connector 12 is electrically connected to the conductor pattern 26 of the circuit board 6.
A positive voltage from the inverter circuit 7 is applied to the outer lead 8 c at one end of the cold cathode tube 8 from the first electrical connector 11 side. The outer lead 8c at the other end of the cold cathode tube 8 is electrically connected to the inverter circuit 7 via the second electrical connector 12, the conductor pattern 26, and the like.

FIG. 2 is a perspective view of main parts of the housing 5, the first electrical connector 11, the circuit board 6, and the cold cathode tube 8. With reference to FIG. 2, in the following, for convenience, the direction parallel to the left-right direction of the main housing 2 is defined as X direction X, and the direction parallel to the vertical direction of the main housing 2 is defined as Y direction Y, The direction parallel to the front-rear direction of the body 2 will be described as the Z direction Z.
One of the X directions X is a first X direction X1, and the other of the X directions X is a second X direction X2. One of the Y directions Y is a first Y direction Y1, and the other of the Y directions Y is a second Y direction Y2. One of the Z directions Z is defined as a first Z direction Z1, and the other of the Z directions Z is defined as a second Z direction Z2.

When the X direction X is simply referred to, the first and second X directions X1 and X2 are collectively referred to. When the Y direction is simply referred to, the first and second Y directions Y1 and Y2 are collectively referred to. In addition, when simply referring to the Z direction Z, the first and second Z directions Z1 and Z2 are collectively referred to.
One of the three first electrical connectors 11 shown in FIG. 2 shows a state where the outer lead 8c is being connected, and the other two are connected to the outer lead 8c. Shows the state.

The first insertion holes 21 of the rear wall 13 are formed at equal intervals along a predetermined horizontal alignment direction B along the Y direction Y. In addition, since the structure of each 1st penetration hole 21 is the same, below, the 1st penetration hole 21 is mainly demonstrated below.
The first insertion hole 21 penetrates the rear wall 13 along a predetermined depth direction C corresponding to the thickness direction thereof. The depth direction C corresponds to the first Z direction Z1. The first insertion hole 21 is opened in both the first Z direction Z1 corresponding to the thickness direction of the rear wall 13 and the second Z direction Z2 as the direction opposite to the first Z direction Z1. Yes.

  The first insertion hole 21 is formed in a substantially square shape and is relatively long in the X direction X and relatively short in the Y direction Y. The peripheral edge 30 of the first insertion hole 21 includes a first edge 31, a second edge 32, a third edge 33, and a fourth edge 34. The first and third edge portions 31 and 33 are opposed to the X direction X, and the second and fourth edge portions 32 and 34 are opposed to the Y direction Y.

  A housing 35 described later of each first electrical connector 11 is inserted into and held by the corresponding first insertion hole 21. For example, each of the first electrical connectors 11 has a length in the X direction X, Y direction Y, and Z direction Z of about 10 mm to 15 mm. In addition, since the structure of each 1st electrical connector 11 is the same, below, the 1st 1st electrical connector 11 is mainly demonstrated below.

The first electrical connector 11 includes an insulating housing 35, a conductive contact forming body 36 held in the housing 35, and an operation member 37 for operating the contact forming body 36. .
When the housing 35 of the first electrical connector 11 is attached to the corresponding first insertion hole 21, it is inserted into the first insertion hole 21 along a predetermined insertion direction D1 corresponding to the depth direction C. . The first electrical connector 11 inserted through the first insertion hole 21 is extracted from the first insertion hole 21 by being extracted along the extraction direction D2 opposite to the insertion direction D1. The housing 35 inserted through the first insertion hole 21 is slid with respect to the rear wall 13 along a predetermined locking direction E1 parallel to the axial direction S of the cold cathode tube 8.

  The lock direction E1 is along the direction away from one end portion 8b of the cold cathode tube 8 among the directions parallel to the axial direction S, and corresponds to the first X direction X1. When the housing 35 of the first electrical connector 11 slides in the locking direction E1 with respect to the rear wall 13, the housing 35 is displaced to the locking position and is locked in the first insertion hole 21 of the rear wall 13. In FIG. 2, each 1st electrical connector 11 which is contacting the rear wall 13 has each shown the state in a locked position.

The first electrical connector 11 in the locked position is slid along the unlocking direction E2 opposite to the locking direction E1. The unlocking direction E2 corresponds to the second X direction X2. When the first electrical connector 11 is slid along the unlocking direction E <b> 2, the first electrical connector 11 is displaced to the unlocking position and the lock on the rear wall 13 is released.
The circuit board 6 includes a main part 38 on which an inverter circuit (not shown) and the like are mounted, and a plurality of insertion convex parts 39 formed side by side on one end edge 29 of the main part 38 (see FIG. 2, only a part of the insertion convex portions 39 is shown).

The insertion convex portion 39 is formed along the horizontal alignment direction B so as to correspond to each first electrical connector 11, and the conductor pattern 24 is provided on the surface 6 a of the circuit board 6 in the insertion convex portion 39. .
Each insertion convex part 39 is formed in a rectangular shape. These insertion convex portions 39 are inserted into the corresponding first electrical connectors 11 along the connection direction F1. Thereby, the conductor pattern 24 of the insertion convex part 39 and the 1st electrical connector 11 are electrically connected. The connection direction F1 corresponds to, for example, the first X direction X1.

Each insertion convex part 39 is pulled out along the connection release direction F2 opposite to the connection direction F1 with respect to the corresponding first electrical connector 11. Thereby, the electrical connection with the 1st electrical connector 11 corresponding to the conductor pattern 24 of each insertion convex part 39 is cancelled | released. The disconnection direction F2 corresponds to, for example, the second X direction X2.
When the cold cathode tube 8 is attached to the corresponding first electrical connector 11, it is moved along a predetermined insertion direction G1 along the radial direction of the outer lead 8c. The insertion direction G1 corresponds to, for example, the first Z direction Z1. Further, when each cold cathode tube 8 is detached from the corresponding first electrical connector 11, it is moved along the opposite insertion direction G2 opposite to the insertion direction G1. The insertion direction G1 corresponds to, for example, the second Z direction Z2.

  3A is a plan view of the main part showing a state in which the first electrical connector 11 is held in the housing 5, and FIG. 3B is along the direction of arrow IIIB in FIG. FIG. 3C is a bottom view seen along the direction of arrow IIIC in FIG. FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. FIG. 5 is a cross-sectional view taken along line VV in FIG. 6A is a cross-sectional view taken along the line VIA-VIA in FIG. 3B, and FIG. 6B is a cross-sectional view taken along the line VIB-VIB in FIG. 6A. 3 (A) to 3 (C), FIG. 4, FIG. 5, FIG. 6 (A), and FIG. 6 (B), the first electrical connector 11 is in the unlocked position and the first The state before the outer lead 8c is connected to the electrical connector 11 is shown.

In the following description, the first electrical connector 11 will be described based on the state where the first electrical connector 11 is in the locked position. With reference to FIGS. 3A, 3 </ b> B, and 4, the housing 35 has a substantially symmetric shape in the Y direction Y. The housing 35 is made of synthetic resin, and the entire housing 35 except for a bottom wall 58 described later is an integrally molded product.
The housing 35 includes a first main body portion 41, a second main body portion 42 arranged on the insertion direction G1 side with respect to the first main body portion 41, and a cover portion extending from the first main body portion 41. 43.

Referring to FIG. 4, the first main body 41 is located on the side opposite to the insertion direction G <b> 2 with respect to the rear wall 13. A cavity 44 is defined in a half of the distal end portion 411 of the first main body 41 in the anti-insertion direction G2 on the unlocking direction E2 side. The cavity 44 is open to the side opposite to the insertion direction G2 and can accommodate the corresponding end 8b of the cold cathode tube 8.
An accommodation hole 45 is formed in a half of the distal end portion 411 on the lock direction E1 side. The housing hole 45 accommodates a main body portion 92 and a pair of first elastic piece portions 96 and 97 described later of the contact forming body 36. The accommodation hole 45 extends along the insertion direction G1, and the side opposite to the insertion direction G2 is open.

  With reference to FIGS. 4 and 5, the accommodation hole 45 is partitioned by the surrounding wall 46. The surrounding wall 46 includes a first portion 51, a second portion 52, a third portion 53, and a fourth portion 54. The first and third portions 51 and 53 are opposed to each other with respect to the lock direction E1. The second and fourth portions 52 and 54 are opposed to each other in the orthogonal direction H orthogonal to both the insertion direction D1 and the lock direction E1.

The first portion 51 partitions the cavity 44 and the accommodation hole 45. Since the intermediate portion 51a of the first portion 51 in the orthogonal direction H is cut out, the outer lead 8c can be inserted into the cutout portion. The second and fourth portions 52 and 54 are formed with through holes 55 penetrating the second and fourth portions 52 and 54 in the orthogonal direction H, respectively.
Most of the second main body 42 is located on the insertion direction G1 side with respect to the rear wall 13, and has a box shape as a whole. The second main body portion 42 is provided as a housing portion for housing a contact 100 for connecting a substrate, which will be described later, of the contact forming body 36, and has an upper wall 56 and an annular peripheral wall extending from the upper wall 56 toward the insertion direction G 1. 57 and a bottom wall 58 that closes one end of the peripheral wall 57. The upper wall 56, the peripheral wall 57, and the bottom wall 58 define an accommodation space 59 in which the substrate connection contact 100 is accommodated.

  The upper wall 56 is continuous with the first main body portion 41. The upper wall 56 is disposed in the first insertion hole 21 and is disposed in the vicinity of the rear wall 13. A through hole is formed in a part of the upper wall 56 close to the lock direction E <b> 1, and this through hole constitutes a part of the accommodation hole 45. That is, the accommodation hole 45 extends from the first main body portion 41 to the second main body portion 42 and communicates with the accommodation space 59.

The peripheral wall 57 is formed around a virtual reference axis 60 that passes through the first insertion hole 21 and is parallel to the insertion direction G1. The peripheral wall 57 includes a first side wall 61, a second side wall 62, a third side wall 63, and a fourth side wall 64. The first to fourth side walls 61 to 64 have a tubular shape as a whole.
The 1st-4th side walls 61-64 are each formed in the flat form extended along the insertion direction G1. The first and third side walls 41, 43 extend in parallel to each other so as to face each other in the lock direction E1. The second and fourth side walls 42 and 44 are opposed to each other in the orthogonal direction H and extend in parallel to each other.

One end of each of the first to fourth side walls 61 to 64 is connected to the bottom wall 58. The other ends of the first to fourth side walls 61 to 64 are connected to the upper wall 56. The top wall 56 and the bottom wall 58 are opposed to each other with respect to the insertion direction G1.
The first side wall 61 is formed with a board insertion hole 65 that penetrates the first side wall 61 in the locking direction E1. The board insertion hole 65 is configured so that the corresponding insertion protrusion 39 of the circuit board 6 can be inserted. Thereby, the insertion convex part 39 can be inserted into the accommodation space 59.

  With reference to FIG. 3C and FIG. 4, the bottom wall 58 is formed in a rectangular plate shape. When the first electrical connector 11 is viewed along the anti-insertion direction G2, the bottom wall 58 covers the first to fourth side walls 61 to 64. The outer peripheral portion of one side surface 58a of the bottom wall 58 and the corresponding one ends of the first to fourth side walls 61 to 64 are in surface contact with each other. A convex portion 66 is formed on one side surface 58 a of the bottom wall 58. The convex part 66 is along the inner side surfaces 61a and 63a of the corresponding first and third side walls 61 and 63, respectively. As a result, the creepage distance related to the leakage current is made longer, and the leakage current is more difficult to flow.

The bottom wall 58 is formed separately from the first to fourth side walls 61 to 64 and is detachable from the first to fourth side walls 61 to 64.
Specifically, referring to FIG. 5 and FIG. 6A, small pieces 67 and 68 project from the pair of ends of the bottom wall 58 in the orthogonal direction H, respectively. An engagement recess 69 is formed in each of the small pieces 67 and 68. On the other hand, engagement convex portions 70 are formed on the outer surfaces of the second and fourth side walls 64, respectively. Each engagement convex part 70 and 70 is engaged with a corresponding engagement concave part 69 and 69. The bottom wall 58 may be formed integrally with the peripheral wall 57 using a single member.

  3A and 3C, the cover 43 is formed in a rectangular flat plate shape. When the housing 35 is in the locked position, the first insertion hole 21 has a first one. An area outside the main body 41 is covered. When the first electrical connector 11 is viewed along the anti-insertion direction G2, the first and second main body portions 41 and 42 are disposed closer to the lock direction E1 with respect to the center J (centroid) of the cover portion 43. Has been.

Referring to FIGS. 3B and 3C, cover portion 43 has one side surface 43 a that faces one side 13 b of the pair of main surfaces 13 b and 13 c of rear wall 13. The outer peripheral portion of the one side surface 43 a faces the peripheral edge portion 30 of the first insertion hole 21. Thereby, the cover part 43 and the first main body part 41 cooperate to cover the entire first insertion hole 21.
Referring to FIG. 3A, the cover 43 has a hole 71 formed when the housing 35 is resin-molded. The hole 71 is the first when viewed along the insertion direction D1. It faces the peripheral edge 30 of one insertion hole 21 and is not open to the first insertion hole 21.

With reference to FIGS. 3C and 6A, the backlight device 4 includes a lock mechanism 80 for locking the housing 35 to the rear wall 13.
The lock mechanism 80 includes a first restriction mechanism 81, a second restriction mechanism 82, and a third restriction mechanism 83. The first restricting mechanism 81 is for preventing the housing 35 from moving in a direction (Z direction Z) parallel to the insertion direction D1 with respect to the rear wall 13. The second restriction mechanism 82 is for preventing the housing 35 from moving in the orthogonal direction H (Y direction Y) with respect to the rear wall 13. The third restriction mechanism 83 is for preventing the housing 35 from moving in the direction parallel to the lock direction E1 (X direction X) with respect to the rear wall 13.

The first restricting mechanism 81 includes a sandwiched portion 841 as a coupling portion provided in the peripheral portion 30 of the first insertion hole 21 and a sandwiching portion 842 as a coupled portion provided in the housing 35.
The sandwiched portion 841 is a small piece that protrudes from the second edge portion 32 toward the inside of the first insertion hole 21. The sandwiched portion 841 is provided at an end portion on the lock direction E1 side in the second edge portion 32 of the peripheral edge portion 30.

  The sandwiching portion 842 includes one portion 842 a formed on one side surface 43 a of the cover portion 43 and the other portion 842 b protruding from the upper wall 56 of the second main body portion 42. The pair of portions 842a and 842b are arranged in the Z direction Z with a space therebetween. The pair of portions 842a and 842b of the sandwiching portion 842 and the sandwiched portion 841 extend along the lock direction E1.

When the housing 35 is in the locked position, the pair of portions 842a and 842b sandwich the sandwiched portion 841 in the Z direction Z. Thereby, the clamping part 842 and the to-be-clamped part 841 are mutually couple | bonded.
The first restricting mechanism 81 further includes a sandwiched portion 851 and a sandwiching portion 852. The sandwiched portion 851 and the sandwiching portion 852 have the same configuration as the sandwiched portion 841 and the sandwiching portion 842, but the sandwiched portion 841 and the sandwiching portion 842 are the following points (1) and (2). Is different.

  That is, (1) the sandwiched portion 851 and the sandwiching portion 852 are disposed on the unlocking direction E2 side with respect to the corresponding sandwiched portion 841 and the sandwiching portion 842, and (2) sandwiched in the lock direction E1. The difference is that the lengths of the portion 851 and the sandwiching portion 852 are longer than those of the corresponding sandwiched portion 841 and the sandwiching portion 842. Similar to the sandwiching portion 842, the sandwiching portion 852 includes one portion 852a and the other portion 852b.

The sandwiched portion 841 and the sandwiched portion 851 are also formed on the fourth edge 34 of the peripheral portion 30. Corresponding to the sandwiched portion 841 and the sandwiched portion 851 of the fourth edge portion 34, the sandwiched portion 841 and the sandwiched portion 851 are formed in the housing 35.
The sandwiched portion 841 and the sandwiching portion 842 on the second edge portion 32 side and the sandwiched portion 841 and the sandwiching portion 842 on the fourth edge portion 34 side are arranged symmetrically in the orthogonal direction H. Similarly, the sandwiched portion 851 and the sandwiching portion 852 on the second edge portion 32 side and the sandwiched portion 851 and the sandwiching portion 852 on the fourth edge portion 34 side are arranged symmetrically in the orthogonal direction H. .

  With reference to FIG. 3C and FIG. 6B, the second restriction mechanism 82 includes the sandwiched portions 841 and 851 of the second edge 32 and the sandwiched portions 841 and 841 of the fourth edge 34. 851 and a pair of end surfaces 56a, 56b provided on the housing 35. The pair of end surfaces 56 a and 56 b are a pair of end surfaces in the orthogonal direction H of the upper wall 56 of the second main body 42 of the housing 35.

  The pair of end surfaces 56a and 56b constitute a pair of first portions. In addition, it is good also as providing a processus | protrusion in each of a pair of end surface 56a, 56b, and these processus | protrusions as a pair of 1st part. The sandwiched portions 841 and 851 of the second edge portion 32 and the sandwiched portions 841 and 851 of the fourth edge portion 34 face each other in the orthogonal direction H, and a pair of second parts facing the orthogonal direction H. This part is composed.

When the housing 35 is in the locked position, the clamped portions 841 and 851 of the second edge 32 and the clamped portions 841 and 851 of the fourth edge 34 have the pair of end surfaces 56a and 56b in the orthogonal direction H. It is sandwiched.
Referring to FIG. 3C, the third restriction mechanism 83 includes a pair of third portions 93a and 93b provided in the housing 35 and spaced apart from each other with respect to the lock direction E1, and the first and third portions of the peripheral portion 30. And a pair of fourth portions 94a and 94b which are provided at the edges 31 and 33 and face the lock direction E1.

  One third portion 93 a is formed on the end surface 56 c on the lock direction E <b> 1 side of the upper wall 56. The other third portion 93 b is formed on a ridge 95 that protrudes from the one side surface 43 a of the cover portion 43 toward the first insertion hole 21. The ridge 95 extends along the lock direction E1, and the end of the ridge 95 on the unlocking direction E2 side is the other third portion 93b.

When the housing 35 is in the locked position, the pair of fourth portions 94a and 94b sandwich the pair of third portions 93a and 93b in a direction parallel to the lock direction E1 (X direction X).
FIG. 7 is a perspective view of the contact forming body 36. Referring to FIG. 7, the contact forming body 36 is electrically connected to the corresponding outer lead 8 c of the cold cathode tube 8 and is also electrically connected to the conductor pattern 24 of the insertion convex portion 39 of the circuit board 6. Thereby, electrical connection between the outer leads 8c and the conductor pattern 24 is achieved.

As a material constituting the contact forming body 36, a single sheet metal member made of a conductive member such as metal can be exemplified. The sheet thickness of this sheet metal member is, for example, about 0.2 mm. As for the said sheet metal member, the plating layer is formed by performing the plating process on each of the surface and the back surface.
The contact forming body 36 has a substantially symmetric shape in the Y direction Y. The contact forming body 36 includes a main body 92, a fluorescent tube connecting contact 98 including a pair of first elastic pieces 96 and 97 extending from the main body 92, and a box extending from the main body 92. And a board connection contact 100 as a connection member connection contact provided in the box-like part 99.

The main body 92 includes an upper part 101 that connects base ends of the pair of first elastic piece parts 96 and 97, an intermediate part 102 that is located on the insertion direction D1 side with respect to the upper part 101, and an intermediate part 102 On the other hand, the lower part 103 located in the insertion direction D1 side is included.
At each of the pair of end portions of the intermediate portion 102 with respect to the orthogonal direction H, an engagement convex portion 104 for frictionally engaging with the housing 35 is provided.

With reference to FIG. 4, the main body 92 is held by the housing 35. Specifically, the main body 92 is accommodated in the accommodation hole 45 of the housing 35. Each engagement convex portion 104 of the main body 92 is in frictional contact with the inner surface of the corresponding second and fourth portions 52 and 54 of the surrounding wall 46.
With reference to FIG. 7, the substrate connection contact 100 extends from the box-shaped portion 99 and is disposed in the box-shaped portion 99.

The box-shaped part 99 includes a first wall 111, a second wall 112, a third wall 113, and a fourth wall 114. The first to fourth walls 111 to 114 are each formed in a rectangular flat plate shape. These first to fourth walls 111 to 114 are formed in a cylindrical shape as a whole.
The first and second walls 111 and 112 extend in parallel to each other so as to face each other in the insertion direction D1. The third and fourth walls 113 and 114 extend in parallel with each other so as to face each other in the orthogonal direction H. The lower portion 103 of the main body 92 is connected to the first wall 111. The insertion recess 105 is defined by the first to fourth walls 111 to 114.

FIG. 8 is a partially enlarged view of FIG. With reference to FIGS. 5 and 8, the box-shaped portion 99 is disposed in the accommodating space 59 defined in the second main body portion 42 of the housing 35. The box-shaped portion 99 is disposed on the connection release direction F2 side in the accommodation space 59, and the box-shaped portion 99 is not disposed on the downstream side in the connection direction F1.
The substrate connection contact 100 is extended from at least one of the four walls 111 to 114 of the box-shaped portion 99. In the present embodiment, the substrate connection contact 100 extends from one end of the second wall 112 on the lock direction E1 side, and is sandwiched between the upper wall 56 and the bottom wall 58 in the Z direction Z. Yes. The substrate connection contact 100 is surrounded by the peripheral wall 57 around the reference axis 60.

The substrate connection contact 100 is formed in an elongated plate shape. The substrate connection contact 100 includes a fixed piece 115 extending from one end of the second wall 112, a second elastic piece 116 bent in a U shape from the tip of the fixed piece 115, Is included.
The fixed piece 115 is folded back so that at least a part thereof is in close contact with the second wall 112 on which the substrate connection contact 100 is extended.

The second elastic piece portion 116 is a so-called curl spring type elastic piece portion that is smoothly curved as a whole. The second elastic piece 116 is bent in a U shape from the tip of the fixed piece 115 and extends in the connecting direction F1.
The second elastic piece portion 116 includes a bending portion 117 that curls so as to protrude toward the connection release direction F2, and a main portion 118 that extends from the bending portion 117 along the insertion direction G1.

The base end portion of the bending portion 117 is connected to the distal end portion of the fixed piece portion 115 and is supported by the second wall 112. The distal end of the bending portion 117 faces the lock direction E1 side, and the main body portion 118 is connected.
The main body portion 118 extends from the first inclined portion 119 so as to be separated from the second wall 112 as it proceeds in the connection direction E1, and extends from the first inclined portion 119, and as the second direction proceeds in the connection direction F1. And a second inclined portion 120 that is inclined so as to be close to the wall 112.

The tip of the first inclined portion 119 has the highest height from the second wall 112 in the second elastic piece portion 116. A contact portion 121 is provided at the tip of the first inclined portion 119. When the insertion convex portion 39 is inserted into the insertion concave portion 105, the contact portion 121 comes into contact with and electrically connected to the conductor pattern 24 of the insertion convex portion 39.
A slit 122 is formed in the second elastic piece portion 116. The slit 122 extends over substantially the entire area of the second elastic piece portion 116 in the longitudinal direction of the second elastic piece portion 116. A slit 122 is not formed at the tip of the second elastic piece portion 116.

Guide protrusions 123 and 124 are formed on the third and fourth walls 113 and 114, respectively. These guide protrusions 123 and 124 guide the insertion of the insertion convex portion 39 into the insertion concave portion 105, thereby restricting the second elastic piece portion 116 from being excessively bent.
5 and 7, the fluorescent tube connecting contact 98 is electrically connected to the substrate connecting contact 100 via the main body 92. The pair of first elastic pieces 96, 97 of the fluorescent tube connecting contact 98 are attached so as to be in elastic contact with the corresponding outer leads 8c of the cold cathode tubes 8, thereby electrically connecting the outer leads 8c. Connected.

The pair of first elastic pieces 96 and 97 extend to the drawing direction D2 side with respect to the substrate connection contact 100. That is, the pair of first elastic pieces 96 and 97 extend to the opposite side of the bottom wall 58 with respect to the substrate connection contact 100.
The pair of first elastic piece portions 96 and 97 have a symmetrical shape in the Y direction Y. The first elastic piece portions 96 and 97 are each extended from the upper portion 101 of the main body portion 92. The pair of first elastic piece portions 96 and 97 are disposed in the accommodation hole 45.

FIG. 9 is an enlarged view of the pair of first elastic piece portions 96 and 97. Referring to FIG. 9, the pair of first elastic piece portions 96 and 97 each include a first piece portion 131 and a second piece portion 132.
Each first piece 131 extends from the upper portion 101 of the main body 92 along the anti-insertion direction G2. Each second piece 132 is folded back from the tip 131b of the corresponding first piece 131 and extends along the insertion direction G1. With respect to the orthogonal direction H, the pair of first pieces 131 and 131 are disposed relatively far from each other, and the pair of second pieces 132 and 132 are disposed relatively close to each other.

The pair of first pieces 131 and 131 can be elastically close to and separated from each other with the corresponding base end portions 131a and 131a as fulcrums. In a free state (a state where no external force is applied), the first pieces 131 are arranged in parallel to each other.
At the tip 131b of each first piece 131, there is provided an engaging portion 133 for engaging with an expanding operation portion 142 described later (only one engaging portion 133 is shown in FIG. 9). . Each engaging portion 133 is formed of a small piece and protrudes from the distal end portion 131b of the corresponding first piece portion 131 toward the lock direction E1.

Each second piece 132 serves as a holding portion for holding the folded portion 134 connected to the distal end portion 131b of the corresponding first piece 131, the first narrowed portion 135, and the outer lead 8c in the radial direction. The linear portion 136 (contact portion), the second throttle portion 137, and the tip portion 138 are included.
As the pair of folded portions 134 and 134 proceed in the insertion direction G1, the distance between the pair of folded portions 134 and 134 decreases. The pair of first narrowed portions 135 and 135 are for preventing the outer lead 8c from coming off in the anti-insertion direction G2 from the pair of linear portions 136 and 136. Each is connected.

The interval between the pair of first narrowed portions 135 and 135 is narrower than the interval between the pair of folded portions 134 and 134 and is also narrower than the interval between the pair of linear portions 136 and 136. .
The pair of linear portions 136 and 136 are for electrically connecting to the corresponding outer leads 8c. Each linear portion 136 is connected to the corresponding first throttle portion 135 and extends along the insertion direction G1 in a free state.

  The pair of second narrowed portions 137 and 137 is for preventing the corresponding outer lead 8c from coming off from the pair of linear portions 136 and 136 toward the insertion direction G1. The pair of second restricting portions 137 and 137 are connected to the corresponding linear portions 136 and 136, respectively. The distance between the pair of second throttle parts 137 and 137 is narrower than the distance between the pair of linear parts 136 and 136.

The pair of distal end portions 138 are respectively connected to the corresponding second restricting portions 137, and are pressed by the corresponding first piece portions 131 and 131, respectively, so that the distance between the pair of linear portions 136 and 136 is obtained. To narrow.
FIG. 10A is a perspective view of a main part showing a state before the cold cathode tube 8 is connected to the first electrical connector 11, and FIG. 10B is an XB- It is sectional drawing which follows a XB line. FIG. 11A is a perspective view of a main part showing a state in which the cold cathode tube 8 is connected to the first electrical connector 11, and FIG. 11B is a XIB-XIB of FIG. 11A. It is sectional drawing which follows a line.

Referring to FIGS. 10A and 10B, the operation member 37 is for operating the holding of the outer lead 8c by the pair of linear portions 136, 136 and the release of this holding.
The operation member 37 is fitted in the accommodation hole 45 of the housing 35, and is movable relative to the housing 35 in the Z direction Z. The operation member 37 is an integrally molded product made of resin having a symmetrical shape in the Y direction Y.

The operation member 37 includes a pair of portions 139 and 140 facing each other with a gap in the Y direction Y, a connecting portion 141 connecting the pair of portions 139 and 140, and an expansion provided in the connecting portion 141. And an operation unit 142.
The pair of portions 139 and 140 are disposed so as to sandwich the pair of first elastic piece portions 96 and 97 in the orthogonal direction H within the accommodation hole 45. The pair of portions 139 and 140 are sandwiched between the second and fourth portions 52 and 54 of the enclosure wall 46.

A first recess 143 and a second recess 144 are formed on the outer surfaces of the pair of portions 139 and 140, respectively. Each first recess 143 is relatively disposed on the insertion direction G1 side. Each second recess 144 is relatively disposed on the side opposite to the insertion direction G2.
When the operating member 37 is in the expanded position, each first recess 143 engages with an engaging portion 145 formed in the corresponding second and fourth portions 52 and 54 of the enclosure wall 46. As a result, the operation member 37 is held in the expanded position. The spread position refers to a position when the operation member 37 relatively widens the distance between the pair of first elastic piece portions 96 and 97.

The expansion position refers to the interval between the pair of linear portions 136 and 136 so that the outer lead 8c can be inserted between the pair of linear portions 136 and 136 with no insertion force. It can also be said that the position is expanded by the portion 142.
On the other hand, as shown in FIGS. 11 (A) and 11 (B), when the operation member 37 is in the expansion release position, the second recesses 144 are the second and fourth portions of the enclosure wall 46. Engage with the corresponding engaging portions 145 of 52, 54. Accordingly, the operation member 37 is held at the expansion release position. The expansion release position refers to a position when the operation member 37 relatively narrows the distance between the pair of first elastic piece portions 96 and 97. The inner side surfaces 147 of the pair of portions 139 and 140 are opposed to each other with the pair of first elastic piece portions 96 and 97 interposed therebetween.

When the operation member 37 is in the expansion release position, the pair of first elastic pieces 96 and 97 are sandwiched in the Y direction Y by the pair of inner side surfaces 147 and 147.
With reference to FIG. 10 (B), the expansion operation part 142 engages with the corresponding engaging parts 133 and 133 of the pair of first elastic piece parts 96 and 97, respectively. The space between 136 and 136 is expanded.

  The expansion operation part 142 protrudes from the connection part 141 to the unlocking direction E2 side (the front side of the paper). The expansion operation unit 142 has a pair of inclined cam surfaces 148 and 148. The pair of inclined cam surfaces 148 and 148 correspond to engaging portions when the operation member 37 is displaced from the expansion release position (see FIG. 11B) to the expansion position (see FIG. 10B). It abuts on 133 and 133, respectively. Accordingly, the pair of inclined cam surfaces 148 and 148 widen the interval between the pair of engaging portions 133 and 133. The pair of inclined cam surfaces 148 and 148 become narrower as they move in the anti-insertion direction G2.

  In the liquid crystal display device having the above schematic configuration, (1) the assembly of the housing 35 of the first electrical connector 11 and the rear wall 13 of the housing 5 (see FIG. 12), (2) the first electrical connector. 11 and the insertion convex portion 39 of the circuit board 6 (see FIGS. 14A and 14B), and (3) fluorescent tube connection of the first electrical connector 11 The connection between the contact 98 and the outer lead 8c of the cold cathode tube 8 (see FIG. 11B) is performed as follows.

  (1) The assembly of the housing 35 of the first electrical connector 11 and the rear wall 13 of the housing 5 is performed by first attaching the housing 35 of the first electrical connector 11 to the rear wall 13 as shown in FIG. The first insertion hole 21 is opposed to the drawing direction D2 side. From this state, the first electrical connector 11 is moved along the insertion direction D <b> 1, and the housing 35 is inserted into the first insertion hole 21.

  Thereby, as shown in FIG. 13, the cover part 43 of the housing 35 is received by one main surface 13b of the rear wall 13, and the housing 35 reaches a lock release position. The housing 35 in the unlocked position is in a state where the lock to the rear wall 13 by the lock mechanism 80 is released. At this time, the other portions 842b and 852b of the sandwiching portions 842 and 852 of the first restricting mechanism 81 are located on the insertion direction D1 side with respect to the first insertion hole 21 (in FIG. Only the clamping parts 842 and 852 on the fourth edge 34 side of the one insertion hole 21 are shown).

  Next, the first electrical connector 11 is slid with respect to the rear wall 13 in the locking direction E1, thereby moving the housing 35 from the unlocked position toward the locked position. Thereby, the other portions 842b and 852b of the sandwiching portions 842 and 852 of the first restricting mechanism 81 engage with the corresponding sandwiched portions 841 and 851. That is, each clamping part 842,852 holds the corresponding to-be-clamped part 841,851, respectively. Further, the ridge 95 on the one side surface 43 a of the cover portion 43 is displaced in the locking direction E <b> 1 while sliding on the one main surface 13 b of the rear wall 13, and further, the first edge of the first insertion hole 21. Engage with the part 31.

  As shown in FIGS. 3B and 3C, the housing 35 of the first electrical connector 11 that has reached the lock position is separated from the insertion direction D1 by the first restriction mechanism 81 of the lock mechanism 80. Relative movement with the rear wall 13 in the parallel direction (Z direction Z) is restricted. Further, relative movement of the housing 35 with the rear wall 13 in the orthogonal direction H (Y direction Y) is restricted by the second restriction mechanism 82 of the lock mechanism 80. Further, relative movement of the housing 35 with respect to the rear wall 13 in the direction parallel to the lock direction E1 (X direction X) is restricted by the third restriction mechanism 83 of the lock mechanism 80.

  (2) The connection between the substrate connection contact 100 of the first electrical connector 11 and the conductor pattern 24 of the insertion convex portion 39 of the circuit board 6 is first made as shown in FIG. The insertion convex portion 39 is arranged on the connection release direction F2 side with respect to the substrate connection contact 100. Next, the insertion convex portion 39 is relatively moved toward the insertion concave portion 105 (accommodating space 59) along the connection direction F1.

Accordingly, as shown in FIG. 14B, the insertion convex portion 39 is inserted through the board insertion hole 65 of the first side wall 61 of the second main body portion 42 of the housing 35 and is further slid into the insertion concave portion 105. Is done. At this time, the contact portion 121 of the second elastic piece portion 116 elastically contacts the conductor pattern 24 of the insertion convex portion 39.
Further, the guide protrusions 123 and 124 (only one guide protrusion 123 is shown in FIG. 14B) receives the back surface 6 b of the circuit board 6 in the insertion convex portion 39. Thereby, the insertion convex part 39 is pinched | interposed into the guide protrusions 123 and 124 and the 1st wall 111, and the insertion convex part 39 is positioned regarding the insertion direction D1.

  (3) As shown in FIGS. 10 (A) and 10 (B), the fluorescent tube connecting contact 98 of the first electrical connector 11 and the outer lead 8c of the cold cathode tube 8 are mutually connected. The operation member 37 is held in the expanded position. As a result, the inclined cam surfaces 148 and 148 of the expansion operation portion 142 are engaged with the corresponding engaging portions 133 and 133 of the pair of first elastic piece portions 96 and 97, respectively. Thereby, the space | interval between a pair of 1st elastic piece parts 96 and 97 is expanded.

In this state, the main body 8a of the cold cathode tube 8 is gripped by hand or a jig (not shown), and the outer lead 8c is disposed on the side opposite to the insertion direction G2 with respect to the operation member 37. And the outer lead 8c is arrange | positioned between a pair of linear part 136,136 of a pair of 2nd elastic piece parts 96 and 97 by moving the outer lead 8c along the insertion direction G1.
Next, by moving the operating member 37 in the first Z direction Z1 with respect to the housing 35, the operating member 37 is displaced from the expanded position to the expanded release position shown in FIG. Thereby, each engagement with a pair of inclined cam surface 148,148 of the expansion operation part 142 and the corresponding engaging parts 133,133 of a pair of 1st elastic piece part 96,97 is cancelled | released. . As a result, due to the elastic restoring force of the pair of first elastic piece portions 96, 97, the pair of second elastic piece portions 96, 97 are displaced so as to be close to each other. Accordingly, the pair of linear portions 136 and 136 elastically sandwich the outer lead 8c and are electrically connected to the outer lead 8c.

  When the operation member 37 is displaced to the expansion release position, the inner side surfaces 147 and 147 of the pair of portions 139 and 140 sandwich the corresponding tip portions 131b and 131b. As a result, the pair of inner side surfaces 147 and 147 brings the tip portions 131b and 131b close to each other. Thereby, the applied pressure which narrows the distance between the linear parts 136 and 136 acts. The clamping force of the corresponding outer lead 8c by the pair of linear portions 136, 136 is increased.

Further, when the operation member 37 is displaced to the expansion release position, the base end portions 131a and 131a of the pair of first piece portions 131 and 131 correspond to the distal end portions 138 corresponding to the second piece portions 132 and 132, respectively. , 138 are pressed to bring these tip portions 138, 138 close to each other.
In this manner, by reducing the distance between the pair of tip portions 138 and 138, a pressing force is applied to reduce the distance between the pair of linear portions 136 and 136. The clamping force of the outer lead 8c by the pair of linear portions 136, 136 is further increased.

  Referring to FIG. 6A, when the bottom wall 58 of the housing 35 is removed from the peripheral wall 57, the engagement recesses 69, 69 of the small pieces 67, 68 of the bottom wall 58 are provided in the second and fourth portions. Are removed from the corresponding engaging convex portions 70 of the side wall 64 (only the second side wall 62 side is shown in FIG. 6A). As a result, as shown in FIG. 15, the engagement between the engagement concave portions 69 and 69 and the corresponding engagement convex portions 70 and 70 is released, and the bottom wall 58 is detached from the peripheral wall 57.

As described above, according to the present embodiment, the first insertion hole 21 for the first electrical connector 11 is formed in the housing 5 of the backlight device 4. Thereby, the housing 35 of the first electrical connector 11 can be directly attached to the housing 5.
For example, in the present embodiment, the housing 35 is compared with the case where the second step of attaching the subassembly to the housing 5 is performed after the first step of assembling the subassembly by attaching the housing 35 to a member such as an alignment plate. The number of steps required when attaching to the housing 5 can be reduced, and the effort required for attaching the first electrical connector 11 can be reduced. Further, since the housing 5 also has a function of holding the housing 35, it is not necessary to separately provide a member such as an alignment plate, and the number of parts can be reduced.

  The substrate connection contact 100 is covered with an insulating peripheral wall 57 and a bottom wall 58. Thus, by covering most of the substrate connection contacts 100, it is possible to reliably suppress leakage current from flowing from the substrate connection contacts 100. As a result, the power consumption of the cold cathode tube 8 can be reduced. In addition, since the substrate connection contact 100 is covered with the housing 35 of the first electrical connector 11, it is not necessary to cover the substrate connection contact 100 with the housing 5 of the backlight device 4. Therefore, the degree of freedom of the shape of the housing 5 can be increased.

Furthermore, by holding the housing 35 with the first insertion hole 21 formed in the rear wall 13 parallel to the cold cathode tube 8, the housing 35 can be held at a position close to the cold cathode tube 8. Can be miniaturized. Through the miniaturization of the housing 35, the first electrical connector 11 can be made smaller.
Further, the holding portion for the first electrical connector 11 can be formed with a simple configuration in which the first insertion hole 21 is formed in the rear wall 13 of the housing 4. Further, the first insertion hole 21 passes through the rear wall 13 in the Z direction Z, which is the thickness direction of the rear wall 13, and is open to both one Z1 and the other Z2 in the Z direction Z. Thereby, the shape of the 1st penetration hole 21 can be simplified, and this 1st penetration hole 21 can be formed easily.

Further, the housings 35 of the corresponding first electrical connectors 11 are held in the plurality of first insertion holes 21 respectively. Thereby, the plurality of first electrical connectors 11 can be held by the single housing 5.
Furthermore, when the first electrical connector 11 is attached to the first insertion hole 21 of the rear wall 13 of the housing 5, the housing 35 is moved along the lock direction E 1 parallel to the axial direction S of the cold cathode tube 8. By sliding and moving with respect to the rear wall 13, the housing 35 is moved from the unlocked position to the locked position.

  Therefore, when the housing 35 is locked with respect to the rear wall 13, it is not necessary to move the housing 35 in a direction (Y direction Y) orthogonal to the axial direction S of the cold cathode tube 8. Thereby, it is possible to prevent the outer lead 8c of the cold cathode tube 8 connected to the first electrical connector 11 from being displaced in the direction (Y direction Y) perpendicular to the axial direction S of the cold cathode tube 8. As a result, it is possible to prevent the cold cathode tube 8 from being inclined with respect to the normal direction.

Further, the housing 35 in the locked position covers the first insertion hole 21 in cooperation with the first main body portion 41 and the cover portion 43. Thereby, it is possible to prevent foreign matters such as dust from accumulating in the peripheral edge portion 30 of the first insertion hole 21.
Further, the lock direction E1 is set along the direction (first X direction X1) away from the end 8b of the cold cathode tube 8 among the directions parallel to the axial direction S of the cold cathode tube 8. As a result, the housing 35 in the locked position can be prevented from moving further away from the cold cathode tube 8. Thereby, it is possible to prevent the connection between the outer lead 8c of the cold cathode tube 8 and the fluorescent tube connecting contact 98 of the first electrical connector 11 from being inadvertently released due to vibration or impact.

Further, when the housing 35 is in the locked position, the sandwiched portions 841 and 851 and the corresponding sandwiched portions 842 and 852 are coupled to each other. Accordingly, the housing 35 can be locked, and the housing 35 can be prevented from moving in the direction parallel to the insertion direction D1 (Z direction Z) with respect to the rear wall 13.
Further, the corresponding sandwiched portions 841 and 851 can be sandwiched by the sandwiching portions 842 and 852 by a simple operation of moving the housing 35 from the unlocking position to the locking position, respectively.

Furthermore, each clamping part 842,852 and each to-be-clamped part 841,851 are provided along with the lock direction E1. Thereby, it can prevent reliably that both the both ends of the housing 35 regarding the lock direction E1 move to the Z direction Z with respect to the rear wall 13. FIG.
Further, the holding portion 842 and the sandwiched portion 841 that are relatively on the lock position side and the sandwiching portion 852 and the sandwiched portion 851 that are relatively on the lock release position side have different lengths in the lock direction E1. Yes.

Thus, the correct orientation of the housing 35 with respect to the lock direction E1 is achieved by the sandwiching portion 842 and the sandwiched portion 841 that are relatively on the lock position side and the sandwiching portion 852 and the sandwiched portion 851 that are relatively on the lock release position side. Can be identified. Thereby, the housing 35 can be reliably assembled to the rear wall 13 in the correct direction.
Further, when the housing 35 is in the locked position, of the second restriction mechanism 82 of the lock mechanism 80, the sandwiched portions 841 and 851 of the second edge 32 and the sandwiched portions 841 of the fourth edge 34. 851 sandwiches the pair of end surfaces 56 a and 56 b of the upper wall 56 of the housing 35 in the orthogonal direction H. Thereby, it is possible to prevent the housing 35 of the first electrical connector 11 from moving in the orthogonal direction H with respect to the rear wall 13.

Further, when the housing 35 is in the lock position, the pair of third portions 93a and 93b of the third restriction mechanism 83 of the lock mechanism 80 is parallel to the lock direction E1 by the pair of fourth portions 94a and 94b. (X direction X). Thereby, it is possible to prevent the housing 35 from moving in the X direction X parallel to the lock direction E1 with respect to the rear wall 13.
The substrate connection contact 100 is covered with the peripheral wall 57 and the bottom wall 58 of the insulating housing 35. Thus, by covering most of the substrate connection contacts 100, it is possible to reliably suppress leakage current from flowing from the substrate connection contacts 100. As a result, the power consumption of the cold cathode tube 8 can be further reduced.

Furthermore, as a result of the upper wall 56 being provided in the second main body portion 42, the housing 35 can cover substantially the entire board connection contact 100 with the second main body portion 42. Thereby, it is possible to further reliably suppress the leakage current from flowing through the substrate connection contact 100. As a result, the power consumption of the cold cathode tube 8 can be further reduced.
The bottom wall 58 of the second main body 42 is formed separately from the peripheral wall 57 and is detachable from the peripheral wall 57. Thereby, for example, the contact forming body 36 can be inserted into the housing 35 from one end of the peripheral wall 57 with the bottom wall 58 removed from the peripheral wall 57. Therefore, the assembly of the contact forming body 36 to the housing 35 can be easily performed. Further, by removing the bottom wall 58 from the peripheral wall 57, the substrate connection contact 100 can be exposed to the outside of the housing 35, and maintenance of the substrate connection contact 100 can be easily performed.

Further, by using the contact forming body 36 including the fluorescent tube connecting contact 98 and the substrate connecting contact 100, the outer lead 8 c of the cold cathode tube 8 and the conductor pattern 24 of the circuit board 6 can be formed by one contact forming body 36. Can be electrically connected.
Further, the pair of first elastic pieces 96 and 97 of the fluorescent tube connecting contact 98 extend in the second Z direction Z2 which is opposite to the bottom wall 58 with respect to the substrate connecting contact 100. . Thereby, the fluorescent tube connecting contact 98 can be provided without hindering the effect of suppressing the leakage current by the peripheral wall 57 and the bottom wall 58.

The present invention is not limited to the contents of the above embodiments, and various modifications can be made within the scope of the claims.
For example, as shown in FIG. 16, each of the bottom walls 58 of the housings 35 of the plurality of first electrical connectors 11 may be connected by a connecting member 150. In this case, the electrical connector unit 151 is formed by the plurality of first electrical connectors 11. The connecting member 150 connects the bottom walls 58 adjacent to each other in the side-by-side direction B to each other.

Each connecting member 150 is formed in a flat plate shape. Each bottom wall 58 and each connecting member 150 are integrally formed using a single member.
After each first electrical connector 11 is inserted into the corresponding first insertion hole 21 of the rear wall 13 of the housing 5, each bottom wall 58 is attached to the corresponding peripheral wall 57.
According to the present embodiment, by using the connecting member 150, the electrical connector unit 151 in which the first electrical connectors 11 are associated with each other can be realized.

Further, since the bottom wall 58 and the connecting member 150 of each first electrical connector 11 are integrally formed from a single member, the number of parts of the electrical connector unit 151 can be further reduced.
FIG. 17 is a perspective view of a main part of still another embodiment of the present invention. In the following, differences from the embodiment shown in FIGS. 1 to 15 will be mainly described, and the same components are denoted by the same reference numerals and the description thereof will be omitted.

Referring to FIG. 17, in the present embodiment, first electrical connector 11A is used, and housing 35A of first electrical connector 11A is inserted through first insertion hole 21A. ing.
The housing 35A of the first electrical connector 11A inserted through the first insertion hole 21A along the insertion direction D1 has a reference axis 60A extending in a direction parallel to the depth direction C of the first insertion hole 21A. Is slid with respect to the rear wall 13A along a predetermined locking direction E1 along the direction.

  The first insertion hole 21A is formed in a substantially annular shape when viewed along the insertion direction D1. On the peripheral portion 30A of the first insertion hole 21A, there is provided a facing portion 153 facing the upper portions 164a and 164a at the lock position, which will be described later. One or more facing portions 153 are provided along the circumferential direction of the peripheral portion 30A of the first insertion hole 21A. In the present embodiment, the facing portion 153 is provided at two equal intervals along the circumferential direction of the peripheral edge portion 30A, and the facing portions 153 and 153 are arranged along the Y direction Y. A concave portion 154 is formed in each facing portion 153. Each recess 154 is formed by recessing the peripheral edge 30A of the first insertion hole 21A in the radial direction, and has a substantially rectangular shape when viewed along the insertion direction D1.

The first electrical connector 11A has a lock mechanism 80A. The lock mechanism 80A restricts the movement of the housing 35A relative to the rear wall 13A when the housing 35A is in the locked position relative to the rear wall 13A.
The lock mechanism 80A includes a first restriction mechanism 161 and a second restriction mechanism 162. The first restricting mechanism 161 is for preventing the housing 35A from moving in a direction (Z direction Z) parallel to the insertion direction D1 with respect to the rear wall 13A. The second restricting mechanism 162 is for preventing the housing 35A from moving in the direction (X direction Z and Y direction Y) perpendicular to the insertion direction D1 with respect to the rear wall 13A.

The first restricting mechanism 161 includes a sandwiched portion 163 as a coupling portion provided in the peripheral portion 30A of the first insertion hole 21A, and a sandwiching portion 164 as a coupled portion provided in the housing 35A.
The clamping part 164 includes upper side parts 164a and 164a provided on the housing 35A and lower side parts 164b and 164b.

A pair of upper portions 164a are provided so as to sandwich the first elastic piece portions 96, 97 of the contact forming body 36. Each upper part 164a, 164a is formed in a rectangular flat plate shape, and extends along one main surface 13bA of the rear wall 13A. A pair of lower side portions 164b are arranged so as to be shifted by 90 ° in the locking direction E1 with respect to the upper side portion 164a.
FIG. 18 is a partial perspective view of the first electrical connector 11A. Referring to FIGS. 17 and 18, among the upper portions 164a and 164a (only one upper portion 164a is shown in FIG. 18), one side surface 164c facing one main surface 13bA of the rear wall 13 is A convex portion 165 that protrudes toward the insertion direction D1 is formed.

Referring to FIG. 17, each lower side portion 164b is formed in a small piece shape, and is along the other main surface 13cA of the rear wall 13A.
The second restriction mechanism 162 includes a first annular portion 166 provided on the housing 35A and surrounding the reference axis 60A, and a second annular portion 166 provided on the peripheral portion 30A of the first insertion hole 21A and surrounding the first annular portion 166. And an annular portion 167.

The first annular portion 166 is formed so as to surround the first main body portion 41A of the housing 35A. The cross-sectional shape of the outer peripheral surface of the first annular portion 166 is, for example, a polygonal shape. The cross-sectional shape of the outer peripheral surface of the first annular portion 166 may be a circular shape.
The second annular portion 167 is an annular portion formed in the peripheral portion 30A of the first insertion hole 21A. The second annular portion 167 is slightly larger than the first annular portion 166 (for example, within about 1 mm) and has a large diameter.

  When attaching the first electrical connector 11A to the first insertion hole 21A of the rear wall 13A, first, the housing 35A is arranged on the side of the drawing direction D2 with respect to the first insertion hole 21A. At this time, the lower side portions 164b and 164b of the first restricting mechanism 81 and the corresponding concave portions 154 and 154 of the peripheral edge portion 30A are arranged straight along the insertion direction D1. Next, the housing 35A is inserted into the first insertion hole 21A by displacing the housing 35A along the insertion direction D1 with respect to the rear wall 13A.

  Accordingly, as shown in FIG. 19, the upper portions 164a and 164a of the first restricting mechanism 161 are along the one main surface 13bA of the rear wall 13A, and the lower portions 164b and 164b are corresponding recesses. It passes through 154, 154 and reaches the other main surface 13cA side of the rear wall 13A. Further, the first annular portion 166 is surrounded by the second annular portion 167 over the entire circumference while being close to the second annular portion 167. At this time, the housing 35A is in the unlocked position, and the lock to the rear wall 13A by the lock mechanism 80A is released.

  Next, the housing 35A is slid approximately 90 ° in the lock direction E1 with respect to the rear wall 13A. As a result, the housing 35A is displaced from the unlocked position to the locked position shown in FIG. The housing 35A is locked to the rear wall 13A by the lock mechanism 80A. Specifically, when the housing 35A reaches the lock position, the upper portions 164a and 164a and the lower portions 164b and 164b of the holding portion 164 of the first restricting mechanism 161 are held by the holding portion of the rear wall 13A. 163 is sandwiched in the Z direction Z (direction parallel to the insertion direction D1). Each lower side part 164b, 164b is along the other main surface 13cA of the rear wall 13A. Thereby, relative movement of the housing 35A and the rear wall 13A in the Z direction Z is restricted.

Further, since the first annular portion 166 is surrounded by the second annular portion 167, relative movement of the housing 35A and the rear wall 13A in the X direction X and the Y direction Y is restricted.
The housing 35A in the locked position covers substantially the entire first insertion hole 21A. When the housing 35A is in the locked position, as shown in FIGS. 20 (A) and 20 (B), the one side surfaces 164c and 164c of the upper portions 164a and 164a are respectively connected to the corresponding facing portions 153 and 153, respectively. Opposite. At this time, the convex portions 165 and 165 of the upper side portions 164a and 164a are fitted in the corresponding concave portions 154 and 154, respectively. Accordingly, the housing 35A is restricted from being displaced with respect to the rear wall 13A in the lock direction E1 or the lock release direction E2 opposite to the lock direction E1.

  As described above, according to the present embodiment, the housing 35A is unlocked by being slid with respect to the rear wall 13A along the locking direction E1 after being inserted into the first insertion hole 21A. Move from position to lock position. Therefore, when the housing 35A is locked with respect to the rear wall 13A, it is not necessary to linearly move the housing 35A in a direction (Y direction Y) orthogonal to the axial direction S of the cold cathode tube 8.

  Thereby, it is possible to prevent the housing 35A from being displaced in a direction orthogonal to the axial direction S. It is possible to prevent the outer lead 8c of the cold cathode tube 8 connected to the first electrical connector 11A from being displaced in the direction orthogonal to the axial direction S of the cold cathode tube 8 (Y direction Y). As a result, it is possible to prevent the cold cathode tube 8 from being inclined with respect to the normal direction. Further, when the housing 35A is displaced from the unlocked position to the locked position, it is not necessary to move the housing 35A linearly, so there is no need to provide a space for linearly moving the housing 35A, and the first insertion hole 21A is made small it can. Since the first insertion hole 21A can be made small, entry of dust or the like into the first insertion hole 21A can be suppressed.

In addition, the holding portion for the housing 35A of the first electrical connector 11A can be formed with a simple configuration in which the first insertion hole 21A is formed in the rear wall 13A.
Furthermore, since the housing 35A in the locked position covers the first insertion hole 21A, foreign matter such as dust can be prevented from accumulating in the peripheral portion 30A of the first insertion hole 21A.

Further, the housing 35A moves in the direction parallel to the insertion direction D1 (Z direction Z) with respect to the rear wall 13A due to the coupling between the sandwiched portion 163 and the sandwiching portion 164 of the first restricting mechanism 161. Can be prevented.
Furthermore, the upper side portions 164a and 164a of the first restricting mechanism 161 and the lower side portions 164b and 164b are arranged apart from each other with respect to the lock direction E1. Thereby, when the housing 35 </ b> A is viewed along the lock direction E <b> 1, the number of places where the sandwiching portions 164 are disposed can be increased. As a result, it is possible to more reliably prevent the housing 35A from being inclined with respect to the insertion direction D1.

When the housing 35A is in the locked position, the corresponding concave portions 154 and 154 are fitted into the convex portions 165 and 165 formed on the upper side portions 164a and 164a, respectively. Thereby, the rotation prevention of the housing 35A can be achieved, and the housing 35A can be prevented from inadvertently rotating with respect to the rear wall 13A.
Furthermore, when the housing 35A is in the locked position, the second annular portion 167 surrounds the first annular portion 166, so that the first direction with respect to the direction orthogonal to the insertion direction D1 (X direction X and Y direction Y) The electrical connector 11A can be prevented from moving relative to the rear wall 13A. In the present embodiment, the arrangement of the convex portions 165 and the concave portions 154 may be exchanged.

  FIG. 20A is a schematic view of the first electrical connector 11B according to still another embodiment of the present invention as viewed along the lock direction E1. Referring to FIG. 20A, the lock mechanism 80B of the first electrical connector 11B has a restriction mechanism 169 instead of the first and second restriction mechanisms 81 and 82. The regulating mechanism 169 regulates the movement of the housing 35B in both the direction parallel to the insertion direction D1 (Z direction Z) and the orthogonal direction H (Y direction Y) with respect to the rear wall 13B. is there.

The restricting mechanism 169 includes sandwiching portions 170 and 170 that are concave portions as coupled portions provided at a pair of end portions of the second main body portion 42B in the orthogonal direction H, and the peripheral portion 30B of the first insertion hole 21B. And sandwiched portions 171 and 171 as coupling portions provided on the second and fourth edge portions 32B and 34B.
In the housing 35B, inclined guide surfaces 172 and 172 are provided at portions located on the insertion direction D1 side with respect to the holding portions 170 and 170, respectively. The pair of guide surfaces 172 and 172 are formed in a tapered shape as a whole, and the distance between the guide surfaces 172 and 172 becomes narrower toward the insertion direction D1 side.

  When the housing 35B of the first electrical connector 11B is attached to the first insertion hole 21B, the housing 35B is displaced toward the rear wall 13B along the insertion direction D1. Thereby, as shown in FIG. 21 (B), the housing 35B is inserted into the first insertion hole 21B. At this time, each guide surface 172, 172 is elastically deformed to the inside of the first insertion hole 21B while engaging with the corresponding second and fourth edge portions 32B, 34B. When the housing 35B is further displaced along the insertion direction D1, as shown in FIG. 21C, the sandwiching portions 170 and 170 sandwich the corresponding sandwiched portions 171 and 171, respectively.

According to the present embodiment, the insertion direction D1 and the lock direction E1 can be the same direction. Thereby, the operation | work which attaches the housing 35B to the 1st penetration hole 21B can be simplified more.
In each of the above embodiments, the conductor pattern may be formed only on one of the front surface 6a and the back surface 6b of the circuit board 6. In this case, the substrate connection contact 100 is connected to the surface 6a or 6b on which the conductor pattern is formed. Instead of the circuit board 6, a conductive connection member having an insertion convex portion similar to the circuit board 6 may be used.

It is a typical plane sectional view showing a schematic structure of a liquid crystal display provided with an electric connector concerning one embodiment of the present invention. It is a perspective view of the principal part of a housing | casing, a 1st electrical connector, a circuit board, and a cold cathode tube. (A) is the top view of the principal part which shows the state by which the 1st electrical connector was hold | maintained at the housing | casing, (B) is the figure seen along the arrow IIIB direction of FIG. 3 (A). (C) is a bottom view seen along the direction of arrow IIIC in FIG. 3 (B). It is sectional drawing which follows the IV-IV line of FIG. 3 (A). It is sectional drawing which follows the VV line of FIG. 3 (A). (A) is sectional drawing which follows the VIA-VIA line of FIG. 3 (B), (B) is sectional drawing which follows the VIB-VIB line of FIG. 6 (A). It is a perspective view of a contact formation body. FIG. 5 is a partially enlarged view of FIG. 4. It is an enlarged view of a pair of 1st elastic piece parts. (A) is a perspective view of the principal part which shows the state before a cold cathode tube is connected to a 1st connector, (B) is sectional drawing which follows the XB-XB line | wire of FIG. 10 (A). is there. (A) is a perspective view of the principal part which shows the state in which the cold cathode tube is connected to the 1st connector, (B) is sectional drawing which follows the XIB-XIB line | wire of FIG. 11 (A). . It is a perspective view for demonstrating the process of attaching the housing of a 1st electrical connector to the rear wall of the housing | casing of a backlight apparatus. It is a perspective view for demonstrating the process of attaching the housing of a 1st electrical connector to the rear wall of the housing | casing of a backlight apparatus. (A) And (B) is sectional drawing for demonstrating the process of the mutual connection of the contact for board | substrate connection of a 1st connector, and the insertion convex part of a circuit board, respectively. It is a side view which shows the state which removed the bottom wall of the housing from the surrounding wall. It is a side view which shows the principal part of another embodiment of this invention. It is a perspective view of the principal part of further another embodiment of this invention. It is a partial perspective view of the 1st electric connector. (A) And (B) is a perspective view for demonstrating the process of attaching the housing of a 1st electrical connector to the rear wall of the housing | casing of a backlight apparatus, respectively. (A) is a perspective view of the 1st electric connector in a locked position, (B) is a figure of the important section seen from the arrow XXB direction of Drawing 20 (A). (A)-(C) are side views of the principal part of another embodiment of this invention, respectively.

Explanation of symbols

8 Cold cathode tube (fluorescent tube)
8b end (end of fluorescent tube)
8c Outer lead (Fluorescent tube terminal)
9 Mounting structure (Electric connector mounting structure)
13, 13A, 13B Rear wall (holding member)
13bA One main surface 13cA The other main surface 11, 11A First electric connector (electric connector)
21, 21A First insertion hole (holding portion, insertion hole)
30A peripheral edge (periphery)
35, 35A Housing 36 Contact forming body 56a, 56b A pair of end faces (a pair of first portions)
60A Reference axis 80, 80A Lock mechanism 93a, 93b A pair of third parts 94a, 94b A pair of fourth parts 153 Opposing parts 154 Recessed parts 163 Clamped parts (joining parts)
164 Clamping part (joined part)
164a Upper side portion 164b Lower side portion 165 Protruding portion 166 First annular portion 167 Second annular portion 841 Clamped portion (coupling portion, pair of second portions)
842 Clamping part (joined part)
851 Clamped part (coupling part, pair of second parts)
852 Clamping part (joined part)
C Depth direction D1 Insertion direction E1 Lock direction H Orthogonal direction S Axial direction X X direction (direction parallel to lock direction)
Z Z direction (direction parallel to the insertion direction)

Claims (19)

An electrical connector including a conductive contact formation to which a terminal at the end of the fluorescent tube is connected, and an insulating housing for holding the contact formation;
A plate-like holding member for holding the housing;
A locking mechanism for locking the housing to the holding member,
The holding member includes a holding portion formed along a predetermined depth direction,
The housing can be inserted through the holding portion along a predetermined insertion direction corresponding to the depth direction,
The housing inserted through the holding portion moves relative to the holding member along a predetermined locking direction parallel to the axial direction of the fluorescent tube, thereby releasing the lock by the lock mechanism from the unlock position. An electrical connector mounting structure, wherein the electrical connector is movable to a lock position locked by the lock mechanism.   The electrical connector mounting structure according to claim 1, wherein the holding portion includes an insertion hole that penetrates the holding member in the depth direction.   3. The electrical connector mounting structure according to claim 1 or 2, wherein the housing at the lock position covers the insertion hole.   The electrical connector mounting structure according to any one of claims 1 to 3, wherein the locking direction is a direction parallel to an axial direction of the fluorescent tube and away from an end of the fluorescent tube. In any one of Claims 1-4,
The lock mechanism includes a coupling portion provided in the holding portion and a coupled portion provided in the housing,
An electrical connector mounting structure in which the coupling portion and the coupled portion are coupled to each other when the housing is in the locked position. In Claim 5, the said joint part has a to-be-clamped part,
The coupled part has a clamping part,
An electrical connector mounting structure in which, when the housing is in a locked position, the sandwiched portion is sandwiched by the sandwiching portion in a direction parallel to the insertion direction. In Claim 6, the said clamping part and the to-be-clamped part are respectively extended along the said lock direction,
An electrical connector mounting structure in which the clamped portion is clamped by the clamped portion when the housing moves from the unlocked position to the locked position.   8. The electrical connector mounting structure according to claim 6, wherein a plurality of the sandwiching portions and the sandwiched portions are provided along the lock direction.   In Claim 8, the said clamping part and to-be-clamped part which are relatively in a lock position side, and the said clamping part and to-be-clamped part which are relatively in a lock release position side differ in the length regarding a locking direction. Connector mounting structure. 10. The first locking mechanism according to claim 1, wherein the locking mechanism is a pair of first members provided in the housing so as to face each other in a predetermined orthogonal direction orthogonal to both the locking direction and the insertion direction. And a pair of second parts provided in the holding portion and facing each other in the orthogonal direction,
When the housing is in the locked position, the pair of second portions has the electrical connector mounting structure in which the pair of first portions sandwich the pair of first portions in the orthogonal direction. 11. The lock mechanism according to claim 1, wherein the lock mechanism is provided in the housing and is opposed to the pair of third portions in the lock direction, and is provided in the holding portion and is opposed to the lock direction. A pair of fourth portions,
When the housing is in the locked position, the pair of fourth portions sandwich the pair of third portions in a direction parallel to the locking direction, and the electrical connector mounting structure. An electrical connector including a conductive contact formation to which a terminal at the end of the fluorescent tube is connected, and an insulating housing for holding the contact formation;
A plate-like holding member for holding the housing;
A locking mechanism for locking the housing to the holding member,
The holding member includes a holding portion formed along a predetermined depth direction,
The housing can be inserted through the holding portion along a predetermined insertion direction corresponding to the depth direction,
The housing inserted through the holding part is moved with respect to the holding member with respect to a predetermined locking direction along a reference axis extending in a direction parallel to the depth direction, so that the lock by the locking mechanism is released. An electrical connector mounting structure, wherein the electrical connector can be moved from a lock release position to a lock position locked by the lock mechanism.   13. The electrical connector mounting structure according to claim 12, wherein the holding portion includes an insertion hole that penetrates the holding member in the depth direction.   14. The mounting structure for an electrical connector according to claim 12, wherein the housing at the lock position covers the insertion hole. In any one of Claims 12-14,
The lock mechanism includes a coupling portion provided in the holding portion and a coupled portion provided in the housing,
An electrical connector mounting structure in which the coupling portion and the coupled portion are coupled to each other when the housing is in the locked position. In Claim 15, the said joint part has a to-be-clamped part,
The coupled part has a clamping part,
An electrical connector mounting structure in which, when the housing is in a locked position, the sandwiched portion is sandwiched by the sandwiching portion in a direction parallel to the insertion direction. In Claim 16, the said clamping part contains the upper part along one side of a pair of main surfaces of the above-mentioned holding member, and the lower side part along the other of the above-mentioned pair of main surfaces,
The electrical connector mounting structure in which the upper side portion and the lower side portion are spaced apart with respect to the locking direction. In Claim 17, the peripheral edge of the above-mentioned holding part contains the countering part which counters the upper part of the housing in the above-mentioned lock position,
A convex portion is formed on one of the upper portion and the facing portion, and a concave portion is formed on the other,
An electrical connector mounting structure in which the convex portion is fitted into the concave portion when the housing is in the locked position.   The lock mechanism according to any one of claims 12 to 18, wherein the lock mechanism includes a first annular portion provided in the housing and surrounding the reference axis, and a second annular portion provided in the holding portion and surrounding the first annular portion. An electrical connector mounting structure including an annular portion.

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