JP6900289B2 - Connector box - Google Patents

Description

In the present invention, the substrate has a receptacle connector portion having a connector insertion port into which a plug connector is inserted from the front, a board unit having the receptacle connector portion at the front end of the board, and the substrate with the connector insertion port open to the outside. With respect to a connector box comprising a casing for accommodating the unit.

Opportunities to use devices that require power supply (hereinafter referred to as power consuming devices) in automobiles and the like are increasing.
In recent years, the chances of using a so-called USB (Universal Serial Bus) standard connector unit as a power interface for a power consuming device used in a vehicle have increased remarkably. This is because the USB standard connector unit is not limited to in-vehicle use and has high versatility.

In Patent Document 1, power is acquired from an in-vehicle DC power supply (so-called cigar socket), and the power is supplied from a USB standard socket (so-called receptacle connector) to a power consumption device having a USB standard plug (hereinafter, in the following, An in-vehicle USB hub for (called USB power supply) and the like is described.
Since this in-vehicle USB hub is not installed in the vehicle in advance, when using the power consuming device, the power plug of the in-vehicle USB hub is inserted into the cigar socket mounted in the vehicle body in advance.

Patent Document 2 describes an in-vehicle USB terminal device.
This in-vehicle USB terminal device is provided in advance as an in-vehicle device on the dashboard of the driver's seat, for example, and is used for USB power supply and the like.

Here, the receptacle connector generally has a problem of durability due to repeated insertion and removal of the plug connector.
For example, Patent Document 3 discloses a problem that a connector jack (receptacle connector) mounted on a board is easily detached from the board due to repeated insertion and removal of the plug connector and prying. Then, in order to solve this problem, a connector jack mounting structure has been proposed that can reinforce the connector jack mounted on the board and improve the durability against plugging / unplugging and scratching.
Patent Document 3 describes a mounting structure including a reinforcing member having a shape that covers the outer periphery of a connector jack (receptacle connector) and having a mounting portion on the substrate. Specifically, a mounting structure in which a connector jack is mounted on the surface of a substrate, the outer periphery of the connector jack is covered with a reinforcing member, and a mounting portion of the reinforcing member is fixed to the board is exemplified.

Japanese Unexamined Patent Publication No. 2003-263252 Japanese Unexamined Patent Publication No. 2016-46062 Japanese Unexamined Patent Publication No. 2002-075559

The in-vehicle USB hub described in Patent Document 1 is safe because it can be easily replaced even if it breaks down. However, it is inconvenient when the power consuming device is frequently used in the vehicle. This is because it is necessary to connect this in-vehicle USB hub to a cigar socket as an in-vehicle DC power supply and prepare for use each time it is used.

The in-vehicle USB terminal device described in Patent Document 2 is highly convenient for the user when the power consuming device is frequently used in the vehicle.
However, when the power consuming device is used in the vehicle, the inside of the vehicle is not necessarily a large space, so there are various inconveniences.
For example, the body of an occupant such as a driver may unexpectedly come into contact with the plug. In addition, since it is necessary for the occupant to insert and remove the plug while seated in the seat (the posture of the occupant is restricted in the vehicle), the occupant deviates from the plug insertion / removal direction with respect to the plug inserted into the receptacle connector. The force may be applied in the direction (pry direction). In addition, the user may push the plug excessively when inserting the plug into the receptacle connector.

As described above, when the power consuming device is used in the vehicle, an excessive external force may be applied in the direction of prying the connected plug. Then, such an excessive external force in the prying direction may damage the receptacle connector or the container accommodating the receptacle connector, and may cause a failure. Specifically, for example, as pointed out in Patent Document 3, it may cause a failure such that the receptacle connector is detached from the substrate.
Then, when the in-vehicle USB terminal device equipped in advance as the in-vehicle device breaks down, it is inconvenient because it cannot be easily replaced like the in-vehicle USB hub described in Patent Document 1.

According to the mounting structure of the receptacle connector described in Patent Document 3, the durability of the receptacle connector portion in the in-vehicle USB terminal device is improved, and the risk of failure can be mitigated. However, compared to the normal usage mode, sufficient durability may not be obtained in a usage environment in which an excessive external force is likely to be applied to the connected plug connector such as in-vehicle use.

Therefore, in view of the convenience of the occupants, it is desired to provide a connector box such as a connector device having high durability that can sufficiently withstand even when an excessive external force is repeatedly applied, for example, in an in-vehicle application.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a highly durable connector box.

The characteristic configuration of the connector box according to the present invention for achieving the above object is as follows.
Receptacle connector part with a connector insertion slot into which a plug connector is inserted from the front,
A board unit having the receptacle connector at the front end of the board,
A casing for accommodating the board unit with the connector insertion port open to the outside is provided.
The casing comprises a lower casing that covers the lower surface of the substrate unit and an upper casing that covers the upper surface of the substrate unit and is fitted with the lower casing to fix the substrate unit.
The upper casing includes a receptacle connector accommodating portion that accommodates at least a part of the receptacle connecting portion.
The receptacle connector accommodating portion has a back wall portion that abuts on the rear end surface of the connector, which is the back surface of the receptacle connector portion .
The lower casing includes a bottom plate portion facing the lower surface of the substrate unit, a pair of lower side wall portions erected from the bottom plate portion, and a pair of lower side wall portions formed on the opposite side of the bottom plate portion. With the first engaging part of
The lower casing is in a state where the upper casing slides in one direction in the front-rear direction and is fitted into a space surrounded by the pair of the first engaging portion, the lower side wall portion, and the bottom plate portion. lies in that holds the irremovably said upper casing in the vertical direction.

According to the above configuration, the substrate unit is housed in a casing formed by the upper casing and the lower casing in a state of being fixed to the upper casing. Then, at least a part of the receptacle connector portion mounted on the front end of the substrate is housed in the receptacle connector accommodating portion.
Here, the receptacle connector accommodating portion is provided in the same upper casing to which the substrate unit is fixed. Therefore, according to the above configuration, the substrate unit is fixed to the upper casing, and the receptacle connector portion mounted on the substrate unit is supported by the upper casing while being accommodated in the receptacle connector accommodating portion. The casing.

In this way, when the receptacle connector accommodating portion supports the receptacle connector portion by the upper casing, the back wall portion of the receptacle connector accommodating portion is brought into contact with the rear end surface of the connector of the receptacle connector portion, so that the receptacle connector portion is brought into contact with the rear end surface of the connector. It can be supported from the rear to the front.

Therefore, when the plug connector is inserted from the front, even if an excessive force is erroneously applied rearward from the plug connector to the receptacle connector portion, the receptacle connector accommodating portion of the upper casing receives the force. Therefore, it is possible to reduce the risk of failure such that the receptacle connector portion is detached from the substrate.
Therefore, according to the above configuration, it is possible to provide a highly durable connector box.

Further characteristic configurations of the connector box according to the present invention are as follows.
The receptacle connector accommodating portion has an upper wall portion that abuts on the upper wall surface of the connector, which is the upper surface of the receptacle connector portion.

In this way, when the receptacle connector accommodating portion supports the receptacle connector portion on the upper casing, the upper wall portion of the receptacle connector accommodating portion is brought into contact with the upper wall surface of the connector of the receptacle connector portion, whereby the receptacle connector portion is brought into contact with the upper wall surface of the receptacle connector portion. It can be supported from above to below.
Therefore, according to the above configuration, when the plug connector is inserted from the front, or when the plug connector is inserted, a prying force erroneously applied upward from the plug connector to the receptacle connector portion is applied. The upper wall of the receptacle connector housing of the upper casing receives it. Therefore, it is possible to reduce the risk of failure such that the receptacle connector portion is detached from the substrate or the receptacle connector portion is damaged.
Therefore, according to the above configuration, it is possible to provide a highly durable connector box.

Further characteristic configurations of the connector box according to the present invention are as follows.
The receptacle connector accommodating portion has a side wall portion that abuts on a connector side wall surface that is a side surface of the receptacle connector portion.

In this way, when the receptacle connector accommodating portion supports the receptacle connector portion on the upper casing, the side wall portion of the receptacle connector accommodating portion is brought into contact with the side surface of the connector of the receptacle connector portion, so that the receptacle connector portion is placed on the left side thereof. Can be supported from right to right and from right to left.
Therefore, according to the above configuration, when the plug connector is inserted from the front, or when the plug connector is inserted, the plug connector is erroneously added to the left or right with respect to the receptacle connector portion. The side wall of the receptacle connector accommodating portion of the upper casing receives the prying force. Therefore, it is possible to reduce the risk of failure such that the receptacle connector portion is detached from the substrate or the receptacle connector portion is damaged.
Therefore, according to the above configuration, it is possible to provide a highly durable connector box.

Further characteristic configurations of the connector box according to the present invention are as follows.
The upper casing is at a point where it has a pair of flanges having through holes.

According to the above configuration, the connector box can be mounted (mounted) on a mounting target (mounting target wall) such as a dashboard of an automobile by inserting, for example, a screw into a through hole of a flange.
Here, since the upper casing has the flange, the external force applied to the receptacle connector portion can be received by the flange of the upper casing, so that the connector box as a whole is less likely to be damaged and the durability of the connector box can be improved. ..

An exploded perspective view showing the overall configuration of the connector box An exploded perspective view from below explaining how to attach the substrate unit and the light guide lens. An exploded perspective view from above that explains how to assemble the connector box. Perspective view from above of the connector box VV cross section of connector box VI-VI sectional view of the receptacle connector and its surroundings VII-VII sectional view of the receptacle connector and its surroundings Front view of connector box Rear view of connector box

[Outline configuration]
The connector box 100 and the method of assembling the connector box 100 according to the embodiment of the present invention will be described with reference to FIGS. 1 to 9.

In the following, first, a schematic configuration of the connector box 100 will be described with reference to FIG. 1.
In the present embodiment, the connector box 100 is an electrical component for mounting the receptacle connector portion 1 on a wall to be mounted (not shown).
The connector box 100 is a connector device for supplying power that supplies power to the other device in a state where a plug connector (not shown) of another device is inserted into the connector insertion port 11 of the receptacle connector portion 1. is there.
The connector box 100 is, for example, an in-vehicle USB terminal device mounted (equipped) on a dashboard of a driver's seat of an automobile (an example of a wall to be mounted, not shown).

In the present embodiment, when defining the front-rear direction of the connector box 100, as shown in FIGS. 1 and 2, the direction from the input connector 29 toward the receptacle connector portion 1 is defined as the front F. On the contrary, the direction from the receptacle connector portion 1 toward the input connector 29 is defined as the rear B. The front F and the rear B are parallel to the longitudinal direction of the connector box 100 in a plan view. The direction from the front F to the rear B is the front-rear direction.
The direction perpendicular to the front-rear direction toward the top plate portion 60 of the upper casing 6 and perpendicularly intersecting with the top plate portion 60 is defined as the upper U. The direction perpendicular to the front-rear direction toward the bottom plate portion 40 of the lower casing 4 and perpendicularly intersecting with the bottom plate portion 40 is defined as downward D. The direction from the upper U to the lower D is the vertical direction.
In the front-rear direction and the direction perpendicular to the vertical direction and facing the front F, the left direction is left L and the right direction is right R. The direction from the left L to the right R is the left-right direction.

In the present embodiment, the connector box 100 has a receptacle connector portion 1 having a connector insertion port 11 that opens toward the front F and a plug connector (not shown) into which a plug connector (not shown) is inserted, and a receptacle connector portion 1 at the front end of the substrate 20. The board unit 2 is provided, and the casing 3 for accommodating the board unit 2 with the connector insertion port 11 open to the outside is provided.

Further, in the present embodiment, the connector box 100 includes a light guide lens 9.
The light guide lens 9 includes an annular portion 90 that fits on the outside of the receptacle connector portion 1 and a pair of locking portions 93 that extend from the annular portion 90 to the rear B.

The substrate unit 2 is further provided with a light emitting unit 21 on the upper surface of the substrate 20.
In the present embodiment, the light emitted by the light emitting unit 21 inside the casing 3 is guided to the light guide lens 9.

The casing 3 includes a lower casing 4 that covers the lower surface of the substrate unit 2 and an upper casing 6 that covers the upper surface of the substrate unit 2. The upper casing 6 is fitted to the lower casing 4.

The lower casing 4 includes a bottom plate portion 40 facing the lower surface of the substrate unit 2, a pair of lower side wall portions 41 erected from the bottom plate portion 40 toward the upper side U, and a bottom plate portion 40 of the lower side wall portion 41. It has a pair of first engaging portions 31a formed on opposite sides.

The upper casing 6 includes a top plate portion 60 that covers the substrate unit 2 and an upper side wall portion 61 that is erected from the top plate portion 60 toward the lower side D, and at the boundary between the top plate portion 60 and the upper side wall portion 61. , A pair of first engaged portions 31b that engage with the first engaging portion 31a.
The upper casing 6 further includes a receptacle connector accommodating portion 8 that accommodates at least a part of the receptacle connector portion 1. The receptacle connector accommodating portion 8 has a back wall portion 80c that abuts on the connector rear end surface 10c (see FIG. 3), which is the back surface portion of the receptacle connector portion 1.
The upper casing 6 further includes a front end wall 81 and a locking hole 82 formed so as to penetrate the front end wall 81 in the front-rear direction. The light guide lens 9 is mounted on the upper casing 6 with the locking portion 93 inserted through the locking hole 82.
The substrate unit 2 is attached to and fixed to the upper casing 6.

When the upper casing 6 to which the board unit 2 is attached is fitted to the lower casing 4, the upper side wall portion 61 and the lower side wall portion 41 are in a state where the upper casing 6 is rearward B with respect to the lower casing 4. And slide the upper casing 6 in one of the front-rear directions (front F in this embodiment). As a result, the first engaged portion 31b of the upper casing 6 fits into the space surrounded by the pair of first engaging portions 31a, the lower side wall portion 41, and the bottom plate portion 40. In this state, the lower casing 4 holds the upper casing 6 in the vertical direction so as not to be detached (see FIG. 4).

In the present embodiment, the lower casing 4 is provided with a front plate portion 7 at the end portion of the front F. The front plate portion 7 has an opening 70 into which the receptacle connector portion 1 is inserted and the connector insertion port 11 is opened to the outside of the casing 3.

Further, in the present embodiment, the case where the connector box 100 includes the light guide lens 9 and the shield 39 is further illustrated.

The arrangement of each part of the connector box 100 will be supplemented.
Each part of the connector box 100 is arranged in the order of the upper casing 6, the shield 39, the substrate unit 2, and the lower casing 4 from the upper U to the lower D in the vertical direction.

Further, each portion of the connector box 100 is arranged in the order of the front plate portion 7, the light guide lens 9, the receptacle connector portion 1, and the upper casing 6 from the front F to the rear B in the front-rear direction.

In the connector box 100, for example, the front plate portion 7 is exposed on the dashboard, and the other portion of the connector box 100 (casing 3) on the rear B side of the front plate portion 7 is stored inside the dashboard. Can be installed (mounted on the vehicle).

[Detailed configuration]
Hereinafter, each part of the connector box 100 will be described in detail.

[About the board unit and the parts mounted on the board unit]
As shown in FIG. 3, in the substrate unit 2, the receptacle connector portion 1, the light emitting portion 21, the input connector 29, and other electric elements such as ICs and regulators are mounted on the substrate 20 which is a wiring board. It is a thing.
As shown in FIG. 2, the substrate 20 has through holes in the counterclockwise direction in order from the front F and right R corners of the substrate 20 when the substrate 20 is viewed in the upward U direction in the vertical direction. An opening 20a, an opening 20b, an opening 20c, and an opening 20d are provided.

As shown in FIG. 1, in the substrate unit 2, the receptacle connector portion 1 is provided at the front end of the substrate 20.
The substrate 20 is a wiring board having a longitudinal direction in the front-rear direction.
The receptacle connector portion 1 is attached at an end portion (hereinafter referred to as a front end portion) of the front F of the substrate 20 in a state of being slightly advanced from the front end. That is, the receptacle connector main body 10 is attached so as to protrude from the front end of the substrate 20 to the front F.

The receptacle connector unit 1 is a connector that accepts the insertion of a plug connector and establishes an electrical connection.
The receptacle connector portion 1 includes a connector insertion port 11 that accepts the insertion of a plug connector in the receptacle connector main body 10.
In the receptacle connector portion 1, the end portion (hereinafter referred to as the rear end portion) of the rear B of the receptacle connector main body 10 is fixed to the substrate 20. The receptacle connector portion 1 is fixed to the substrate 20 with the connector insertion port 11 facing forward F.

The receptacle connector main body 10 is a bottomed cylinder whose front end opens toward the front F as a connector insertion port 11. In the present embodiment, a case where a band-shaped fixture fixed to the board 20 is attached to a part of a bottomed tubular socket portion forming the receptacle connector main body 10 and fixed to the board 20 is illustrated. ing.
The receptacle connector main body 10 includes a metal terminal for making an electrical connection between the inside of the bottomed cylinder and the wiring of the substrate 20. The metal terminal establishes an electrical connection with the plug connector inside the bottomed cylinder. Further, the metal terminal is electrically connected to the wiring of the substrate 20, and the receptacle connector main body 10 is fixed to the substrate 20 as a so-called fixture.
In the present embodiment, the opening of the connector insertion port 11 is formed in an oval shape whose longitudinal direction is along the left-right direction.
In this embodiment, the structure in which the standard of the connector insertion port 11 corresponds to the standard of USB type C in the so-called USB standard is illustrated and described.

As shown in FIG. 3, the upper surface of the receptacle connector main body 10 is a connector upper wall surface 10a substantially parallel to the substrate 20.
The left and right side surfaces of the receptacle connector main body 10 are left and right connector side wall surfaces 10b that are substantially perpendicular to the substrate 20 along the front-rear direction.
The back surface of the rear B of the receptacle connector main body 10 is a connector rear end surface 10c that intersects substantially vertically in the front-rear direction.

The light emitting unit 21 is a light source device that emits light. In the present embodiment, a case where a light emitting diode (so-called LED) is used as the light emitting unit 21 is illustrated and described.
As shown in FIG. 3, the light emitting units 21 are arranged in pairs on the substrate 20 on the left and right outer sides of the receptacle connector main body 10 so as to be separated from the receptacle connector main body 10 in the left-right direction by a predetermined distance.
The light emitting unit 21 is mounted on the substrate 20 so as to emit light mainly toward the upper U.

As shown in FIG. 1, the input connector 29 connects a power supply line (not shown) that supplies power to the board unit 2 and also transmits an operation command to the board unit 2 (not shown). It is a connection part for connecting (not shown).
In the present embodiment, the input connector 29 is attached at the end of the rear B of the substrate 20 with the connection port facing the rear B.

The input connector 29 and the receptacle connector portion 1 are attached to the same side (upper U surface in FIG. 1) of the substrate 20.
In the following, the surface of the upper U in the substrate unit 2 (board 20) may be simply referred to as an upper surface. Further, the lower D surface of the substrate unit 2 (board 20) may be simply referred to as a lower surface.

[About casing and related parts]
As shown in FIGS. 1 and 5, the casing 3 is a container for accommodating the substrate unit 2 in a state where the connector insertion port 11 of the receptacle connector portion 1 is exposed to the outside.
The casing 3 includes a lower casing 4 that covers the lower surface of the substrate unit 2 and an upper casing 6 that covers the upper surface of the substrate unit 2.

As shown in FIG. 3, the substrate unit 2 is attached to the upper casing 6. When the upper casing 6 to which the substrate unit 2 is mounted is fitted into the lower casing 4, the upper casing 6 and the lower casing 4 accommodate the substrate unit 2 in the internal space as the casing 3 (see FIG. 5).

As shown in FIG. 3, the lower casing 4 has a bottom plate portion 40, a pair of left and right lower side wall portions 41 erected from the bottom plate portion 40 toward the upper U, and a pair of left and right lower side wall portions 41 standing from the bottom plate portion 40 toward the upper U. The lower front wall portion 42 provided, the front plate portion 7 extending from the lower front wall portion 42 toward the front F, and the lower rear wall portion 48 erected from the bottom plate portion 40 toward the upper U. , A pair of first engaging portions 31a formed on the lower side wall portion 41 opposite to the bottom plate portion 40, and a pair of second engaging portions 32a formed on the rear B side end portion of the lower side wall portion 41. And a pair of third engaging portions 33a provided in the vicinity of the front F-side end portion of the pair of lower side wall portions 41.

As shown in FIGS. 1 and 2, the upper casing 6 includes a top plate portion 60, a pair of left and right upper side wall portions 61 erected from the top plate portion 60 toward the lower side D, and a lower D from the top plate portion 60. The upper front wall portion 62 erected toward the top, the receptacle connector accommodating portion 8 formed on the front F side of the top plate portion 60, and the upper rear wall portion 68 erected from the top plate portion 60 toward the lower side D. (See FIG. 9), the attachment ear portion 69 extending outward from the outer surface of the upper side wall portion 61 in the left-right direction, and the front F of both the boundary between the top plate portion 60 and the pair of left and right upper side wall portions 61. A pair of first engaged portions 31b provided at the ends of the above, a pair of second engaged portions 32b provided at the rear B ends of the pair of upper side wall portions 61, and an upper side wall portion 61. It includes a pair of third engaged portions 33b provided on the outer surface in the left-right direction in the vicinity of the front F-side end portion.

The lower casing 4 and the upper casing 6 are formed, for example, by injection molding of a resin. Examples of the resin that can be used as the lower casing 4 and the upper casing 6 include polybutylene terephthalate resin and acrylonitrile-butadiene-styrene resin. In this embodiment, the case where the lower casing 4 and the upper casing 6 are formed by injection molding of polybutylene terephthalate resin is illustrated.

The lower casing 4 will be mainly described with reference to FIGS. 1 and 3.
The bottom plate portion 40 is a wall body that covers the lower surface of the substrate unit 2 in the lower casing 4. The bottom plate portion 40 is provided along the substrate 20 of the substrate unit 2.
In the present embodiment, the bottom plate portion 40 is a wall body having a substantially rectangular shape whose longitudinal direction is along the front-rear direction.

The left and right lower side wall portions 41 are wall bodies extending upward U from the left and right end portions of the bottom plate portion 40.
The left and right lower side wall portions 41 cover the substrate unit 2 from the left and right sides.
The left and right lower side wall portions 41 each have a first engaging portion 31a at the end of the upper U on the front F side. Further, in the present embodiment, the case where the left and right lower side wall portions 41 have an insertion groove 43, a second engaging portion 32a, and a third engaging portion 33a, respectively, is illustrated.

The left and right lower side wall portions 41 each have a second engaging portion 32a at the rear end portion.
The left and right lower side wall portions 41 each have an insertion groove 43 between the first engaging portion 31a and the second engaging portion 32a.
The left and right lower side wall portions 41 each have a third engaging portion 33a in the front F of the insertion groove 43.

The first engaging portion 31a is a mechanism that engages with the first engaged portion 31b to hold (constrain) the upper casing 6 in the vertical direction so as not to be disengaged from the lower casing 4.
In the present embodiment, the first engaging portion 31a is provided as a pair of left and right small wall portions that slightly extend from each of the left and right lower side wall portions 41 toward the other lower side wall portion 41. .. Specifically, the first engaging portion 31a of the lower side wall portion 41 of the left L extends from the lower side wall portion 41 of the left L toward the right R, and the wall portion parallel to the bottom plate portion 40. Is. The first engaging portion 31a of the lower side wall portion 41 of the right R is a wall portion that extends slightly from the lower side wall portion 41 of the right R toward the left L and is parallel to the bottom plate portion 40.

The second engaging portion 32a is a mechanism that engages with the second engaged portion 32b to hold (constrain) the upper casing 6 in the vertical direction so as not to be disengaged from the lower casing 4.
In the present embodiment, the second engaging portion 32a is downward along the front-rear direction (toward the inside of the lower side wall portion 41) from each end of the rear B of the left and right lower side wall portions 41 toward the front F. The side side wall portion 41 is provided as a notched slit. The second engaging portion 32a is provided on the left and right lower side wall portions 41 in pairs on the left and right.

The insertion groove 43 is a guide groove for positioning when the upper casing 6 is attached to the lower casing 4, and the attachment ear portion 69 of the upper casing 6 is fitted when the upper casing 6 is attached to the lower casing 4. It is a groove.
In the present embodiment, the insertion groove 43 is provided as a groove portion that is recessed from the end of the upper U of the left and right lower side wall portions 41 toward the lower side D toward the inside of the lower side wall portion 41. The insertion grooves 43 are provided in pairs on the left and right lower side wall portions 41.

The third engaging portion 33a is a mechanism that engages with the third engaged portion 33b to hold (constrain) the upper casing 6 in the rear B so as not to be detached from the lower casing 4.
In the present embodiment, the third engaging portion 33a is provided at a position on the front F of the insertion groove 43 and the lower D side of the first engaging portion 31a on the wall surface portion of the front F of the left and right lower side wall portions 41. ing. The third engaging portion 33a is provided as a through-hole that penetrates the lower side wall portion 41 in the left-right direction. In the present embodiment, the third engaging portion 33a is provided as a pair of through openings provided on each of the left and right lower side wall portions 41. In the present embodiment, the third engaging portion 33a is a rectangular opening whose side is along the front-rear direction. The third engaging portion 33a is provided on the left and right lower side wall portions 41 in pairs on the left and right.

The lower front wall portion 42 is a wall body extending upward U from the end portion of the front F of the bottom plate portion 40.
The lower front wall portion 42 includes a wall portion 42a and a wall portion 42b.
The wall portions 42b are arranged so as to extend from each of the front F ends of the left and right lower side wall portions 41 toward the other lower side wall portion 41, and are provided in pairs on the left and right sides. Is.
The wall portion 42a is a wall body that is provided integrally with the wall portions 42b on the left and right sides between the left and right wall portions 42b, and extends slightly upward from the end portion of the front F of the bottom plate portion 40 to the upper side U.

The front plate portion 7 is a portion (so-called design portion) that serves as an interface for use of the connector box 100.
The front plate portion 7 includes a frame body 72 extending from the lower front wall portion 42 to the front F, an interface surface 71 formed at the front end of the frame body 72, and an opening 70 provided in the interface surface 71. To be equipped with.
The frame body 72 extends forward from the wall portion 42a and the wall portion 42b, and is formed in a wall shape that surrounds the lower U side of the receptacle connector accommodating portion 8 and the left and right side surfaces of the receptacle connector accommodating portion 8.
The interface surface 71 is a wall surface provided at the front end of the frame body 72 in parallel with the lower front wall portion 42. The interface surface 71 is a substantially rectangular wall surface having a longitudinal direction in the left-right direction.

An opening 70 having a shape having a longitudinal direction in the left-right direction is provided in a substantially central portion of the interface surface 71.
The opening 70 is provided as a through hole that penetrates the interface surface 71 in the front-rear direction.
A receptacle connector portion 1 and a light guide lens 9 fitted in the receptacle connector portion 1 are inserted into the opening 70.
The relationship between the opening 70, the receptacle connector portion 1, and the light guide lens 9 will be described later.

The lower rear wall portion 48 is a wall body extending upward U from the end portion of the rear B of the bottom plate portion 40.
The lower rear wall portion 48 is provided with a receiving portion 48a that abuts along the lower D-side surface of the input connector 29 when the upper casing 6 on which the board unit 2 is mounted is fitted into the lower casing 4. ing.

The upper casing 6 will be mainly described with reference to FIGS. 1 and 2.
The upper casing 6 is a container in which the shield 39 and the substrate unit 2 are mainly fitted and attached to the inside. The shield 39 and the substrate unit 2 are attached to the lower casing 4 in a state of being fitted to the upper casing 6 (see FIG. 3).

The top plate portion 60 is a wall body that covers the upper surface (upper U side surface) of the substrate unit 2 in the upper casing 6.
The top plate portion 60 is provided along the substrate 20 of the substrate unit 2.
In the present embodiment, the top plate portion 60 is a wall body having a substantially rectangular shape whose longitudinal direction is along the front-rear direction.

The top plate portion 60 is provided with a screw seat 63, a positioning seat 64, and a boss portion 66. The screw seat 63 and the position determination seat 64 are provided at positions overlapping the openings 20b and 20c of the substrate 20 in the vertical direction, respectively.
The screw seat 63, the positioning seat 64, and the boss portion 66 extend in a boss shape from the inner surface of the top plate portion 60 (the surface of the lower D of the top plate portion 60) toward the lower D.

The screw seat 63 is arranged on the inner surface of the top plate portion 60 in the vicinity of one corner in the vicinity of the rear end portion of the top plate portion 60. The positioning seat 64 is arranged on the inner surface of the top plate portion 60 near the other corner portion near the rear end portion of the top plate portion 60.

The screw seat 63 and the position determination seat 64 have a flat portion formed at an end portion of the lower D. The plane portions of the screw seat 63 and the positioning seat 64 are provided at positions separated from the inner surface of the top plate portion 60 by the same height (equal distance), respectively.
The screw seat 63 is provided with a screw hole at the end of the lower D toward the upper U along the vertical direction from the end.
The position determination seat 64 is provided with a small protrusion at the end of the lower D along the downward direction from the end toward the lower D.

The boss portions 66 are provided on the inner surface of the top plate portion 60 in pairs on the left and right in the present embodiment. The boss portions 66 are arranged at left and right positions in the vicinity of the rear end portion of the top plate portion 60, respectively. A pair of left and right boss portions 66 are arranged between the screw seat 63 and the positioning seat 64 in the left-right direction. The pair of left and right boss portions 66 are arranged at positions deviated forward from the screw seat 63 or the positioning seat 64 in the front-rear direction. The protrusion length of the pair of left and right boss portions 66 from the top plate portion 60 to the lower side B is shorter than that of the screw seat 63 and the position determination seat 64.

Each of the pair of left and right boss portions 66 has a surface portion facing rearward B.
When the board unit 2 is fitted into the upper casing 6 and attached, the front end portion of the input connector 29 comes into contact with the surface portion of the boss portion 66.

The left and right upper side wall portions 61 are wall bodies extending downward D from the left and right end portions of the top plate portion 60.
The left and right upper side wall portions 61 cover the substrate unit 2 from the left and right sides.
First engaged portions 31b are provided at the left and right side end portions of the top plate portion 60, which are connected to the ends of the upper U on the front F side of the left and right upper side wall portions 61.

The left and right upper side wall portions 61 each have a second engaged portion 32b at the end of the lower U on the rear B side.
The left and right upper side wall portions 61 each include a mounting ear portion 69 between the first engaged portion 31b and the second engaged portion 32b.
The left and right upper side wall portions 61 each include a third engaged portion 33b in front of the attachment ear portion 69.

The first engaged portion 31b is a mechanism that engages with the first engaging portion 31a to hold (constrain) the upper casing 6 in the vertical direction so as not to be disengaged from the lower casing 4.
The first engaged portion 31b is a recess provided in the connecting portion between the top plate portion 60 and the upper side wall portion 61. In the present embodiment, the first engaged portion 31b is located at both left and right ends of the top plate portion 60 and at the end position of the upper U in the upper side wall portion 61 in which the top plate portion 60 is connected to the upper side wall portion 61. It is provided as a recess extending from the front end of the plate portion 60 toward the rear B.
In the present embodiment, the first engaged portion 31b is a recess in the top plate portion 60 that is recessed in the downward direction D. Further, the first engaged portion 31b is a recess in the upper side wall portion 61 that is recessed inward in the casing 3 in the left-right direction.

In the present embodiment, the first engaged portion 31b as a recess slides toward the first engaged portion 31a as a wall portion, and the first engaged portion 31a is moved above the first engaged portion 31b U. By fitting on the side, the first engaging portion 31a and the first engaged portion 31b are engaged.
Specifically, the upper casing 6 is slid from the rear B in the front-rear direction toward the front, and the wall portion of the first engaging portion 31a is meshed with the recess of the first engaged portion 31b. (1) The upper casing 6 is fixed to the lower casing 4 by fitting the upper casing 6 between the engaging portion 31a and the bottom plate portion 40.

The second engaged portion 32b is a mechanism that engages with the second engaging portion 32a to hold (constrain) the upper casing 6 in the vertical direction so as not to be disengaged from the lower casing 4.
In the present embodiment, the second engaged portion 32b is provided as a convex portion protruding outward of the casing 3 provided along the front-rear direction from each end of the rear B of the left and right upper side wall portions 61 toward the front F. It is provided.

In the present embodiment, the second engaged portion 32b as a convex portion slides into the second engaged portion 32a as a slit to fit the second engaged portion 32a and the second engaged portion 32b. Engage.
Specifically, the upper casing 6 is slid from the rear B in the front-rear direction toward the front, and the convex portion of the second engaging portion 32a is fitted into the slit of the second engaged portion 32b along the convex portion. The upper casing 6 is fixed to the lower casing 4.

The mounting ear portion 69 is a guide for positioning when the upper casing 6 is mounted on the lower casing 4. Further, the mounting ear portion 69 is a flange-shaped fixing seat for fixing the connector box 100 from the inside of the dashboard of the driver's seat of an automobile to the inner wall of the dashboard by screwing or the like.

In the present embodiment, the mounting ear portions 69 are provided as a pair of wall bodies extending from the outer wall surfaces of the left and right upper side wall portions 61 toward the outside of the casing 3 in the left-right direction.
The attachment ear portion 69 is provided with a through-hole 69a that penetrates in the front-rear direction and a bottomed tubular positioning recess 69b that is recessed along the front-rear direction from the front F-side surface. The through hole 69a is a screw insertion hole for screwing when the connector box 100 is attached to a dashboard or the like with the attachment ear portion 69. The positioning recess 69b is a locking portion for positioning when the connector box 100 is screwed.

When the upper casing 6 is attached to the lower casing 4, the attachment ear portion 69 slides from the upper U to the lower D of the lower casing 4 and is fitted into the insertion groove 43.
The upper casing 6 is allowed to move in the front-rear direction with respect to the lower casing 4 within the range of the groove width in the front-rear direction of the insertion groove 43 by the mounting ear portion 69 fitted in the insertion groove 43.

The third engaged portion 33b is a mechanism that engages with the third engaging portion 33a to hold (constrain) the upper casing 6 in the rear B so as not to be disengaged from the lower casing 4.
In the present embodiment, the third engaged portion 33b is provided at the position of the front F of the attachment ear portion 69 and the lower D of the first engaged portion 31b on the wall surface portion of the front F of the left and right upper side wall portions 61. It is provided as a protrusion protruding outward in the left-right direction from the outer wall surface of the left and right upper side wall portions 61. The third engaged portion 33b is formed so as to gently extend outward in the left-right direction from the front R toward the rear B, and the end surface of the rear B is formed on a plane that intersects vertically in the front-rear direction.
In the present embodiment, the third engaged portion 33b as a protrusion fits into the third engaging portion 33a as a through port from the inside in the left-right direction of the lower casing 4 and engages with each other. ing.

Two ribs 65 are provided on the inner surfaces of the left and right upper side wall portions 61, respectively. The rib 65 extends vertically from the inner surface of the upper side wall portion 61 and is provided as a plate-shaped portion along the vertical direction. The upper end of the rib 65 is connected to the inner surface of the top plate 60. The rib 65 is installed perpendicular to the top plate portion 60. The rib 65 is formed so that the width of the plate increases from the end of the lower B to the end of the upper U.
The height of the end portion of the lower D of the rib 65 (distance from the inner surface of the top plate portion 60) is lower than the height of the flat portion in the screw seat 63 or the positioning seat 64.

The upper front wall portion 62 is a wall body extending downward U from the end portion of the front F of the top plate portion 60. The upper front wall portion 62 is connected to the left and right upper side wall portions 61.
The height of the lower U end of the upper front wall portion 62 (distance from the inner surface of the top plate portion 60) is the same as the height of the flat portion in the screw seat 63 or the positioning seat 64. ..

The upper front wall portion 62 is provided with a pair of right front end screw seats 62a and left front end screw seats 62b on the left and right, and is provided at the lower D end toward the upper U along the vertical direction from the end. There is a screw hole. The right front end screw seat portion 62a and the left front end screw seat portion 62b are arranged so as to project slightly inward (rearward B) in the upper front wall portion 62.

As shown in FIG. 2, the right front end screw seat portion 62a and the left front end screw seat portion 62b are provided at positions overlapping with each of the openings 20a and 20d of the substrate 20 in the vertical direction, respectively.

The right front end screw seat 62a and the left front screw seat 62b are separated from the corresponding left and right upper side walls 61, and the right front screw seat 62a and the left front screw seat 62b correspond to the left and right upper side walls. A gap 62c is provided between the portion 61 and the portion 61, respectively.

The upper rear wall portion 68 (see FIG. 9) is a wall body extending downward U from the end portion of the rear B of the top plate portion 60. The upper rear wall portion 68 is connected to the left and right upper side wall portions 61.
The upper rear wall portion 68 is provided with an opening portion 66a into which the input connector 29 is fitted when the substrate unit 2 is fitted and attached to the upper casing 6. The opening portion 66a is formed as a recess in the upper rear wall portion 68 that is recessed from the lower D side toward the upper U side.

As shown in FIGS. 5 and 9, when the substrate unit 2 is fitted and attached to the upper casing 6, the input connector 29 fits into the opening portion 66a with its insertion port open to the outside of the casing 3. The end surface of the rear B of the input connector 29 is substantially flush with the end surface of the rear B of the upper rear wall portion 68.

As shown in FIGS. 1, 2, and 5, a shield 39 is fitted and attached to the inside of the upper casing 6. In the present embodiment, the shield 39 can be integrally formed by bending a metal, for example, a galvanized steel sheet.
As shown in FIGS. 1 and 2, the shield 39 has a top plate portion that covers the upper surface of the substrate 20 (the surface on the upper U side of the substrate 20) and a front F that extends downward from the top plate portion. The wall portion 39a of the above, the wall portion 39b of the right R, and the wall portion 39c of the left L are provided.

As shown in FIG. 2, the shield 39 is provided with four slits 39h extending in the left-right direction from the top plate portion toward the wall portion 39a and the wall portion 39b.
The slit 39h is provided at a position corresponding to the rib 65 of the upper casing 6 when the shield 39 is fitted into the upper casing 6, and the rib 65 penetrates the slit 39h so that the shield 39 is positioned. There is.

The shield 39 is provided with two through ports 39i on the top plate portion thereof.
The through-hole 39i is provided at a position corresponding to the boss portion 66 of the upper casing 6 when the shield 39 is fitted into the upper casing 6, and the boss portion 66 penetrates through the through-hole 39i to position the shield 39. It has become like.

In the present embodiment, the wall portion 39b and the front end portion of the wall portion 39c extend so as to advance forward from the wall portion 39a toward the front F side, and when the shield 39 is fitted in the upper casing 6, the gap 62c The wall portion 39b and the wall portion 39c are positioned in the upper casing 6 by being inserted into the upper casing 6.

At the end of the lower U at the front end of the wall 39b, an inspection rib 39d formed on a plate surface perpendicular to the wall 39b and parallel to the top plate 60 is provided. When the shield 39 is fitted into the upper casing 6, the inspection rib 39d overlaps the screw hole of the right front end screw seat portion 62a in the vertical direction.

At the rear end of the wall 39b, the lower U end is formed with a plate surface perpendicular to the wall 39b and parallel to the top plate 60, and is provided with an opening penetrating in the vertical direction. A screw-fastening rib 39e is provided. When the shield 39 is fitted into the upper casing 6, the opening of the screw fixing rib 39e overlaps with the screw hole of the screw seat 63 in the vertical direction.

At the end of the lower U at the front end of the wall 39c, a notch portion formed by a plate surface perpendicular to the wall 39c and parallel to the top plate 60 and penetrating in the vertical direction is provided. A screw fixing rib 39f is provided. When the shield 39 is fitted into the upper casing 6, the notch portion of the screw fixing rib 39f overlaps the screw hole of the left front end screw seat portion 62b in the vertical direction.

At the rear end of the wall 39c, the lower D end is formed with a plate surface perpendicular to the wall 39c and parallel to the top plate 60, and is provided with an opening penetrating in the vertical direction. A positioning rib 39 g is provided. When the shield 39 is fitted to the upper casing 6, the opening of the positioning rib 39g overlaps with the small protrusion of the positioning seat 64 in the vertical direction. That is, the small protrusion of the positioning seat 64 fits into the opening of the positioning rib 39g, and the shield 39 is positioned.

As shown in FIG. 2, the receptacle connector accommodating portion 8 is a structure extending from the upper front wall portion 62 to the front F.
The receptacle connector accommodating portion 8 includes a receptacle connector holding portion 80 and a locking hole 82 penetrating the front end wall 81 of the receptacle connector holding portion 80 along the front-rear direction.

The receptacle connector holding portion 80 is a recess that is recessed from the lower D to the upper U. The receptacle connector holding portion 80 includes an upper wall portion 80a on the upper side U, left and right side surface portions 80b, and a back wall portion 80c on the rear B as wall portions forming the recess.
The receptacle connector holding portion 80 accommodates at least a part of the receptacle connector main body 10 in a space surrounded by the upper wall portion 80a, the left and right side surface portions 80b, and the back wall portion 80c.

As shown in FIGS. 2 and 6, the upper wall portion 80a is a surface parallel to the substrate 20 and the upper wall surface 10a of the connector.
The upper wall portion 80a comes into contact with the connector upper wall surface 10a when the receptacle connector main body 10 is housed in the receptacle connector holding portion 80. Therefore, when an external force directed upward to U is applied to the receptacle connector main body 10, the connector upper wall surface 10a can receive the external force. That is, when an external force directed upward to U is applied to the receptacle connector main body 10, the receptacle connector holding portion 80 receives the external force and prevents the receptacle connector main body 10 from being twisted.

As shown in FIGS. 2 and 7, the left and right side surface portions 80b form a plane perpendicular to the substrate 20 along the front-rear direction. Further, the left and right side surface portions 80b are surfaces perpendicular to the connector side wall surface 10b.
The side surface portion 80b comes into contact with the left and right connector side wall surfaces 10b when the receptacle connector main body 10 is housed in the receptacle connector holding portion 80. Therefore, when an external force directed to the left L or the right R is applied to the receptacle connector main body 10, the left and right side surface portions 80b can receive the external force. That is, when an external force directed to the left L or the right R is applied to the receptacle connector main body 10, the external force is received and the receptacle connector main body 10 is prevented from being twisted.

The back wall portion 80c has a surface perpendicular to the front-rear direction. Further, the back wall portion 80c is a surface parallel to the rear end surface 10c of the connector.
The back wall portion 80c comes into contact with the rear end surface 10c of the connector when the receptacle connector main body 10 is housed in the receptacle connector holding portion 80. Therefore, when an external force directed toward the rear B is applied to the receptacle connector main body 10, the back wall portion 80c can receive the external force. That is, when an external force directed toward the rear B is applied to the receptacle connector main body 10, bending stress is prevented from being generated in the metal terminal of the receptacle connector portion 1 connected to the substrate 20.

The locking holes 82 are provided in pairs on the left and right outer sides of the receptacle connector holding portion 80 in the receptacle connector accommodating portion 8.
The locking hole 82 penetrates the front end wall 81 of the receptacle connector accommodating portion 8 in the front-rear direction, opens downward in the receptacle connector accommodating portion 8, and is provided as a through port facing the light emitting portion 21. .. In other words, the locking hole 82 is a space in the receptacle connector accommodating portion 8 and is located at a position overlapping the left and right light emitting portions 21 (opposing the light emitting portion 21) in the vertical direction, and is a front end wall. It is a space that opens to 81. Therefore, the locking hole 82 communicates with the light emitting unit 21. Further, the locking hole 82 faces the light emitting unit 21.
The locking hole 82 is also a mounting portion on which the light guide lens 9 is mounted, as will be described later.

As shown in FIG. 7, a pair of wall portions 82a (an example of a side wall portion) are arranged between the pair of locking holes 82 and the left and right sides of the receptacle connector holding portion 80. That is, in the left-right direction, the wall portions 82a are arranged so as to overlap the wall portions 82a and the locking holes 82 in this order from the receptacle connector holding portion 80.

That is, a wall portion 82a is arranged between the light emitting portion 21 and the receptacle connector main body 10 held by the receptacle connector holding portion 80. Therefore, the light emitted by the light emitting unit 21 does not leak to the receptacle connector main body 10. That is, it is possible to reduce light leakage from the connector insertion port 11 of the receptacle connector main body 10. This is because the light emitted by the light emitting unit 21 is shielded by the wall portion 82a and the substrate 20 and is not guided (irradiated) to the receptacle connector main body 10.
Therefore, the design of the connector box 100 is improved. Further, since only the periphery of the connector insertion port 11 can be illuminated by the light guide lens 9, the visibility of the user can be improved.
In this embodiment, the wall portion 82a is a part of the left and right side surface portions 80b.

[About light guide lens]
The light guide lens 9 is an optical lens that guides the light emitted by the light emitting unit 21 to the outside of the casing 3.
As shown in FIGS. 2 and 3, the light guide lens 9 extends outward from the annular portion 90 in the outer peripheral direction of the receptacle connector main body 10 (outerly fitted to the receptacle connector main body 10) and from the annular portion 90 to the rear B. It is provided with a locking portion 93 to be put out.

In the present embodiment, the annular portion 90 has an annular lens portion 91 that fits outward in the outer peripheral direction of the receptacle connector main body 10 and a light guide edge portion 92 that extends outward from the annular lens portion 91 in the circumferential direction. There is. The locking portion 93 extends rearward B from the light guide edge portion 92 as the annular portion 90.

The light guide lens 9 is made of a material that allows light to pass through. Examples of the material that can transmit light include transparent resin and glass.
In the light guide lens 9, in the present embodiment, the annular lens portion 91, the light guide edge portion 92, and the locking portion 93 are integrally formed by injection molding of a transparent resin. Examples of the transparent resin capable of forming the light guide lens 9 in the present embodiment include acrylic and polycarbonate. In the present embodiment, a case where the light guide lens 9 is integrally formed by injection molding of acrylic is illustrated and described.

The annular lens portion 91 includes an opening 91a that fits into the receptacle connector main body 10 from the outside. The annular lens portion 91 is a cylinder extending in the front-rear direction, and its cross section is formed in a substantially elliptical shape.
The opening 91a is a through-hole that penetrates in the front-rear direction. The opening 91a is formed in a shape that follows the outer shape of the receptacle connector main body 10.
In the light guide lens 9, the annular lens portion 91 is inserted into the opening 70 with the receptacle connector main body 10 inserted in the opening 91a, that is, with the annular lens portion 91 externally fitted in the receptacle connector main body 10. It is attached.

As shown in FIG. 8, in a state where the light guide lens 9 is attached to the casing 3, that is, a state in which the annular lens portion 91 is inserted and attached to the opening 70, the annular lens portion 91 is attached to the receptacle connector main body 10. , The receptacle connector main body 10 is separated over the entire circumference of the outer circumference. That is, a gap 12 of the annular lens portion 91 is provided between the inside of the annular lens portion 91 and the receptacle connector main body 10. Therefore, even when an external force is applied to the receptacle connector body 10 to deform the receptacle connector body 10, the deformation distortion is absorbed by the gap 12 between the annular lens portion 91 and the receptacle connector body 10 (that is,). Force transmission is impeded). Therefore, the external force applied to the receptacle connector main body 10 does not give stress (strain stress) to the annular lens portion 91.

In a state where the light guide lens 9 is attached to the casing 3, that is, a state in which the annular lens portion 91 of the light guide lens 9 is inserted and attached to the opening 70, the annular lens portion 91 is attached to the opening 70 and the inner circumference. It is separated over the entire circumference of. In other words, the opening 70 is separated from the annular lens portion 91 over the entire circumference of the annular lens portion 91. That is, a gap 13 is provided between the opening 70 and the outside of the annular lens portion 91 over the entire circumference of the outside of the annular lens portion 91. Therefore, even when an external force is applied to the receptacle connector main body 10, the external force is not transmitted to the opening 70 due to the gap 13 between the opening 70 and the outside of the annular lens portion 91. Therefore, the external force applied to the receptacle connector main body 10 does not give stress (strain stress) to the annular lens portion 91.

As shown in FIGS. 2 and 3, the light guide edge portion 92 is a plate-shaped portion extending from the end portion of the rear B of the annular lens portion 91 toward the outer peripheral direction of the annular lens portion 91. The light guide edge portion 92 extends mainly from the end portion of the rear B of the annular lens portion 91 toward the outside in the left-right direction.

As shown in FIG. 6, the light guide edge portion 92 is sandwiched between the back surface of the front plate portion 7 and the front end wall 81 of the receptacle connector accommodating portion 8 in a state where the light guide lens 9 is attached to the casing 3. It is fixed.
That is, the light guide lens 9 is sandwiched and fixed between the back surface of the front plate portion 7 and the front end wall 81 of the receptacle connector accommodating portion 8. Therefore, the light guide lens 9 is attached in a floating state in which it is allowed to shift (freely move) in the vertical direction and the horizontal direction between the front end wall 81 and the back surface of the front plate portion 7.

As shown in FIGS. 2, 3 and 7, the locking portion 93 is a locking member that locks the light guide lens 9 to the upper casing 6, and the light emitted by the light emitting portion 21 (see FIG. 7). Is a light guide unit that guides the light guide lens 9 (annular lens unit 91).
The locking portion 93 is formed so as to extend from the light guide edge portion 92 toward the rear R along the front-rear direction. The locking portions 93 are formed in pairs on the left and right outer sides of the annular lens portion 91, corresponding to the pair of locking holes 82.

As shown in FIG. 7, the locking portion 93 is inserted into a locking hole 82 penetrating the front end wall 81 of the receptacle connector accommodating portion 8 along the front-rear direction and locked to the upper casing 6. Therefore, the locking portion 93 optically connects the front-rear direction of the through-hole of the locking hole 82. That is, the locking portion 93 is inserted into the locking hole 82, and light can be guided in the front-rear direction of the through port of the locking hole 82.
The locking portion 93 is installed so as to be inserted into the locking hole 82 and at least a part thereof overlaps with the light emitting portion 21 in the vertical direction. The locking portion 93 is arranged on the U side (that is, in the direction in which the light emitting portion 21 emits light) above the light emitting portion 21 in the vertical direction.

The light guide of the light guide lens 9 will be described.
When the light emitting unit 21 emits light, the light is incident on the locking unit 93.
The light incident from the locking portion 93 is repeatedly reflected inside the light guide lens 9 and guided from the locking portion 93 to the light guide edge portion 92 and further from the light guide edge portion 92 to the annular lens portion 91. Then, the light guided by the annular lens portion 91 is radiated to the outside of the casing 3. When the interior of the vehicle becomes dark due to the annular lens portion 91 shining, the occupant can accurately see the position of the connector insertion port 11 even at night, for example (the visibility of the connector insertion port 11 is enhanced). Therefore, the occupant can correctly insert the plug connector into the connector insertion port 11.

[Explanation of assembly method]
First, a method of assembling the connector box 100 will be described.
First, the shield 39 is fitted and attached to the upper casing 6 (see FIG. 2).

Next, the substrate unit 2 is further fitted and attached to the upper casing 6 to which the shield 39 is attached (see FIGS. 2 and 3).
At this time, the receptacle connector main body 10 of the receptacle connector portion 1 fits into the receptacle connector holding portion 80 of the receptacle connector accommodating portion 8 (see FIGS. 3, 6 and 7).

When the substrate unit 2 is further fitted and attached to the upper casing 6 to which the shield 39 is attached, the opening 20a, the opening 20b, the opening 20c, and the opening 20d of the substrate 20 are respectively in this order, and the inspection ribs of the shield 39 are inspected. The 39d, the screw fixing rib 39e, and the positioning rib 39g overlap in the vertical direction. At this time, the small protrusion of the positioning seat 64 is fitted in the opening 20c, and the substrate unit 2 is positioned.
The board unit 2 is fixed to the left front end screw seat portion 62b and the screw seat 63 with screws 25 (see FIG. 2).

When the shield 39 is fitted in the upper casing 6 and then the substrate unit 2 is fitted in the upper casing 6 and attached, the inspection rib 39d can be visually recognized from the lower D side of the opening portion of the opening 20c. However, if the substrate unit 2 is fitted and attached to the upper casing 6 without fitting the shield 39 to the upper casing 6, the inspection rib 39d cannot be visually recognized from the lower D side of the opening portion of the opening 20c.
In this way, the inspection rib 39d is used to confirm whether or not the shield 39 is attached to the upper casing 6.

Next, the light guide lens 9 is attached to the receptacle connector accommodating portion 8 of the upper casing 6. The light guide lens 9 is attached as follows.
Hereinafter, description will be made with reference to FIG.
First, the light guide lens 9 is slid toward the rear B in the front-rear direction, and the locking portion 93 is inserted into the locking hole 82 and fitted. At this time, the opening 91a of the annular lens portion 91 fits on the outside of the receptacle connector main body 10. That is, the annular lens portion 91 fits externally into the receptacle connector main body 10.
The light guide lens 9 slides toward the rear B until the light guide edge 92 abuts on the front end wall 81.
When the light guide edge portion 92 comes into contact with the front end wall 81, the attachment of the light guide lens 9 to the upper casing 6 is completed.

Next, the upper casing 6 is fitted and attached to the lower casing 4. At this time, as described above, the substrate unit 2 and the light guide lens 9 are attached to the upper casing 6. In the following description, unless otherwise specified, the substrate unit 2 and the light guide lens 9 are attached to the upper casing 6.

Hereinafter, description will be made with reference to FIG.
When fitting the upper casing 6 into the lower casing 4, first, the upper casing 6 is fitted into the insertion groove 43 of the lower casing 4 together with the attachment ear portion 69 and the third engaged portion 33b of the upper casing 6. When the mounting ear portion 69 is fitted into the insertion groove 43, the mounting ear portion 69 is brought into contact with the lower D edge of the insertion groove 43.

Then, both the upper casing 6 and the substrate unit 2 are slid toward the front F in the front-rear direction, and the upper casing 6 is surrounded by the first engaging portion 31a, the left and right lower side wall portions 41, and the bottom plate portion 40. Fit in the space.

At this time, the wall portion of the first engaging portion 31a fits into and engages with the groove of the first engaged portion 31b. By the engagement, the upper casing 6 is constrained to the lower casing 4 in the vertical direction of the substrate 20.

At this time, the convex portion of the second engaged portion 32b fits into and engages with the slit of the second engaging portion 32a. By the engagement, the upper casing 6 is constrained to the lower casing 4 in the vertical direction of the substrate 20.

Further, at this time, the protrusion of the third engaged portion 33b fits into and engages with the through port of the third engaging portion 33a. By the engagement, the upper casing 6 is restricted from moving toward the rear B in the front-rear direction of the substrate 20 with respect to the lower casing 4.
In the upper casing 6, the upper front wall portion 62 of the upper casing 6 abuts on the rear B side surface of the lower front wall portion 42 of the lower casing 4, and the substrate 20 moves in the front F direction in the front-rear direction. Is regulated.

Further, when both the upper casing 6 and the substrate unit 2 are slid toward the front F in the front-rear direction and the upper casing 6 is fitted between the first engaging portion 31a and the bottom plate portion 40, the receptacle connector main body 10 and Both the annular lens portion 91 and the annular lens portion 91 are inserted into and fitted into the opening 70 of the front plate portion 7.
With the above, the assembly of the connector box 100 is completed.
The assembled connector box 100 is shown in FIG.

By assembling the upper casing 6 by sliding it in the front-rear direction perpendicular to the substrate 20 in this way, the upper casing 6 fits into the lower casing 4, and the upper casing 6 moves up and down with respect to the lower casing 4. It is held (restrained) in the direction so that it cannot be separated.

The assembled connector box 100 is used by being attached to a dashboard in an automobile, which is an example of a wall to be attached to the connector box 100 (attachment target wall), for example.
As an example of how to use the connector box 100, the case where the connector box 100 is attached to the dashboard will be illustrated and the following description will be added.

[Explanation of usage example of connector box]
When the connector box 100 is attached to the dashboard, the attachment ear portion 69 is arranged on the back side of the dashboard, and the interface surface 71 of the front plate portion 7 is exposed to the inside of the dashboard. The connector box 100 can be fixed to the dashboard by screwing to the back side of the dashboard. In this embodiment, the connector box 100 is fixedly supported on the dashboard by inserting a screw into the through hole 69a of the mounting ear portion 69 and screwing it in, and fixing the mounting ear portion 69 on the back side of the dashboard. Can be done.

The upper casing 6 has the mounting ear portion 69, and by fixing and supporting the connector box 100 to the dashboard via the mounting ear portion 69, the external force applied to the receptacle connector portion 1 is applied to the mounting ear portion of the upper casing 6. It can be taken at 69. Therefore, the connector box 100 is not easily damaged as a whole, and the durability of the connector box 100 can be improved.

In this state, the occupant (user) can visually recognize the connector insertion port 11 from the inside of the vehicle. In addition, the user can insert and remove the plug connector from the inside of the vehicle with respect to the connector insertion port 11.
The input connector 29 is connected to an electric circuit inside the vehicle. The power supply to the connector box 100 and the control of light emission and extinguishing of the light emitting unit 21 are controlled by an automobile engine control unit (so-called ECU, hereinafter referred to as ECU) or the like.

For example, when the user starts the automobile, the ECU causes the light emitting unit 21 of the connector box 100 to emit light under predetermined conditions. The predetermined conditions may be, for example, a case where the ECU recognizes that the inside of the vehicle is dark, or a case where the occupant instructs the ECU to turn on the light emitting unit 21. When the light emitting unit 21 emits light, the light of the light emitting unit 21 is guided to the annular lens unit 91 of the light guide lens 9. That is, when the light emitting unit 21 emits light, the annular lens unit 91 shines.
The user can visually recognize the shining annular lens portion 91 and grasp the position of the connector insertion port 11 with good visibility even when the inside of the vehicle is dark, for example, at night.
Therefore, when the user inserts and removes the plug connector from the front F into the connector insertion port 11, the plug connector can be correctly inserted and removed in an appropriate direction.
Therefore, it is possible to reduce the possibility that an external force (force in the prying direction) is applied from the plug connector to the receptacle connector portion 1 in the insertion / removal direction of the plug connector, that is, in the direction warped from the front-rear direction. Therefore, it is possible to reduce the risk of failure in which the receptacle connector portion 1 is detached from the substrate 20.

Even if an external force in the vertical direction is applied to the plug connector with the plug connector inserted into the connector insertion port 11, the upper casing 6 does not easily come off from the lower casing 4.
For example, even if the external force is transmitted to the substrate 20 via the receptacle connector portion 1 and the substrate 20 transmits an external force in the vertical direction to the upper casing 6 or the lower casing 4, the first engaging portion 31a and the first cover This is because the external force in the vertical direction is received by engaging with the engaging portion 31b. In addition to this, the engagement between the second engaged portion 32b and the second engaging portion 32a is for receiving the external force in the vertical direction.

When the plug connector is inserted into the connector insertion port 11, or even if an external force is applied to the plug connector while the plug connector is inserted, the receptacle connector portion 1 is separated from the board 20. There is no. The connector upper wall surface 10a, the connector side wall surface 10b, and the connector rear end surface 10c, which are the outer surfaces of the receptacle connector portion 1, are in contact with the upper wall portion 80a, the side surface portion 80b, and the back wall portion 80c of the receptacle connector accommodating portion 8. This is to prevent the receptacle connector portion 1 from being twisted and deformed by receiving the external force applied from the plug connector to the receptacle connector portion 1 by the receptacle connector accommodating portion 8 of the upper casing 6.
Therefore, it is possible to reduce the risk of failure in which the receptacle connector portion 1 is detached from the substrate 20.

For example, even if an external force in the left-right direction is applied to the receptacle connector portion 1 from the plug connector, the left and right side surface portions 80b of the receptacle connector holding portion 80 of the receptacle connector accommodating portion 8 are in contact with the receptacle connector main body 10, so that the receptacle connector This is because the accommodating portion 8 (side surface portion 80b) supports the receptacle connector portion 1 against the external force.

Similarly, even if an external force upward from the plug connector toward U is applied to the receptacle connector portion 1, the upper wall portion 80a of the receptacle connector holding portion 80 is in contact with the receptacle connector main body 10, so that the receptacle connector accommodating portion 8 (upper). This is because the wall portion 80a) supports the receptacle connector portion 1 against the external force.

Similarly, even if an external force directed to the rear B from the plug connector is applied to the receptacle connector portion 1, the back wall portion 80c of the receptacle connector holding portion 80 is in contact with the receptacle connector main body 10, so that the receptacle connector accommodating portion 8 ( This is because the back wall portion 80c) supports the receptacle connector portion 1 against the external force.

Even if an external force is applied to the receptacle connector body 10 from the plug connector when the plug connector is inserted into the connector insertion port 11 or when the plug connector is inserted into the connector insertion port 11. , No external force is applied to the light guide lens 9.
This is because the gap 12 between the receptacle connector main body 10 and the light guide lens 9 blocks the transmission of the external force.
In particular, when an external force is applied to the receptacle connector main body 10 in the front-rear direction, the locking portion 93 can pass the external force in the front-rear direction along the locking hole 82. This is because the locking hole 82 into which the locking portion 93 is inserted penetrates along the front-rear direction.
Further, since the light guide lens 9 is attached in the above-mentioned floating state, the light guide lens 9 is in the front-rear direction even if a force in the direction perpendicular to the front-rear direction is transmitted to the upper casing 6 via the receptacle connector main body 10. Can be shifted to to dissipate external forces in the vertical direction.
Therefore, the transmission of the external force to the light guide lens 9 is hindered, and the risk of failure such as damage to the light guide lens 9 can be reduced.

Even if an external force is applied to the receptacle connector body 10 from the plug connector with the plug connector inserted into the connector insertion port 11, no external force is applied to the front plate portion 7 (interface surface 71). ..
This is because the gap 12 and the gap 13 between the receptacle connector main body 10 and the opening 70 of the front plate portion 7 block the transmission of the external force.

For example, even if the external force is transmitted to the substrate 20 via the receptacle connector portion 1 and the substrate 20 further transmits the external force to the upper casing 6, the external force is transmitted to the mounting ear portion 69 via the mounting ear portion 69, which is the dashboard to be mounted. This is because it is absorbed by.

As described above, the present invention can provide a highly durable connector box.

[Another Embodiment]
(1) In the above embodiment, the second engaging portion 32a engages with the second engaged portion 32b to hold the upper casing 6 in the vertical direction with respect to the lower casing 4 so as not to be disengaged. Illustrated.
did.
However, the configuration may be such that the second engaging portion 32a and the second engaged portion 32b are not provided.

(2) In the above embodiment, the third engaged portion 33b engages with the third engaging portion 33a to hold the upper casing 6 in the rear B with respect to the lower casing 4 so as not to be disengaged. Illustrated.
However, the configuration may be such that the third engaging portion 33a and the third engaged portion 33b are not provided.

(3) In the above embodiment, the first engaged portion 31a and the first engaged portion 31b, the second engaged portion 32a and the second engaged portion 32b, the third engaged portion 33b and the third An example is shown in which the engaging portion 33a and the engaging portion 33a are provided separately.
However, the first engaged portion 31a and the first engaged portion 31b, or the second engaged portion 32a and the second engaged portion 32b, engage the third engaged portion 33b and the third engaged portion 33a. It can also be configured to double. For example, in addition to the above-described configuration, the second engaging portion 32a and the second engaged portion 32b further restrain the second engaging portion 32a and the second engaged portion 32b in the front-rear direction as well. It can be a mechanism.

(4) In the above embodiment, the case where the receptacle connector holding portion 80 includes an upper wall portion 80a, left and right side surface portions 80b, and a back wall portion 80c is illustrated.
However, the receptacle connector holding portion 80 does not have to include all of the upper wall portion 80a, the left side surface portion 80b, the right side surface portion 80b, and the back wall portion 80c, and includes at least the back wall portion 80c. Just do it.
Further, in addition to the back wall portion 80c, the receptacle connector holding portion 80 has an upper wall portion 80a, a left side surface portion 80b, or a right side surface portion according to the direction of the external force applied to the receptacle connector portion 1. Of the 80b, the structure may be provided with at least one that prevents twisting in the direction in which an external force is applied.

(5) In the above embodiment, the light guide lens 9 includes an annular portion 90 that fits outward in the outer peripheral direction of the receptacle connector main body 10 and a locking portion 93 that extends rearward from the annular portion 90. Reference numeral 90 denotes a case where the receptacle connector main body 10 has an annular lens portion 91 that fits outward in the outer peripheral direction and a light guide edge portion 92 that extends outward from the annular lens portion 91 in the circumferential direction.
However, the light guide lens 9 may be configured to include an annular lens portion 91 and a locking portion 93 extending rearward B from the annular lens portion 91.

(6) In the above embodiment, the case where the locking portions 93 are formed in pairs on the left and right outer sides of the annular lens portion 91 corresponding to the pair of locking holes 82 is illustrated.
However, the locking portion 93 and the locking hole 82 may be provided one by one.

(7) In the above embodiment, the light emitting units 21 are arranged in pairs on the substrate 20 on the left and right outside of the receptacle connector main body 10 so as to be separated from the receptacle connector main body 10 in the left-right direction by a predetermined distance. Illustrated.
However, the light emitting unit 21 does not necessarily have to be arranged on the left and right sides of the receptacle connector main body 10, and only one light emitting unit 21 may be provided on either the left or right side.

(8) In the above embodiment, the annular lens portion 91 of the light guide lens 9 is configured to be separated over the entire circumference of the receptacle connector main body 10, but the annular lens portion 91 and the outer periphery of the receptacle connector main body 10 are separated from each other. May be in contact with each other over a part or the whole circumference. Since the annular lens portion 91 comes into contact with the outer periphery of the receptacle connector main body 10 to increase the strength of the receptacle connector main body 10, even if an external force is applied to the receptacle connector main body 10, deformation of the receptacle connector main body 10 due to the external force is prevented. Or it is suppressed.

The configuration disclosed in the above embodiment (including another embodiment, the same shall apply hereinafter) can be applied in combination with the configuration disclosed in other embodiments as long as there is no contradiction. The embodiments disclosed in the present specification are examples, and the embodiments of the present invention are not limited thereto, and can be appropriately modified without departing from the object of the present invention.

The present invention can be applied to a connector box.

1: Receptacle connector part 2: Board unit 3: Casing 4: Lower casing (casing)
6: Upper casing (casing)
7: Front plate part 8: Receptacle connector accommodating part 9: Light guide lens 10: Receptacle connector main body 10a: Connector upper wall surface 10b: Connector side wall surface 10c: Connector rear end surface 11: Connector insertion port 20: Board 21: Light emitting part 31a: First engaged portion 31b: First engaged portion 32a: Second engaged portion 32b: Second engaged portion 39a: Wall portion 39b: Wall portion 39c: Wall portion 40: Bottom plate portion 41: Lower side wall portion 42: Lower front wall 42a: Wall 42b: Wall 60: Top plate 61: Upper side wall 62: Upper front wall 68: Upper rear wall 69: Mounting ear (flange)
70: Opening 71: Interface surface 80: Receptacle connector holding portion 80a: Upper wall portion 80b: Side surface portion 80c: Back wall portion 81: Front end wall 82: Locking hole 82a: Wall portion (side wall portion)
83: Locking part 90: Ring part 91: Ring lens part 92: Light guide edge part 93: Locking part 100: Connector box F: Front

Claims (4)

Receptacle connector part with a connector insertion slot into which a plug connector is inserted from the front,
A board unit having the receptacle connector at the front end of the board,
A casing for accommodating the board unit with the connector insertion port open to the outside is provided.
The casing comprises a lower casing that covers the lower surface of the substrate unit and an upper casing that covers the upper surface of the substrate unit and is fitted with the lower casing to fix the substrate unit.
The upper casing includes a receptacle connector accommodating portion that accommodates at least a part of the receptacle connector portion.
The receptacle connector accommodating portion has a back wall portion that abuts on the rear end surface of the connector, which is the back surface of the receptacle connector portion .
The lower casing includes a bottom plate portion facing the lower surface of the substrate unit, a pair of lower side wall portions erected from the bottom plate portion, and a pair of lower side wall portions formed on the opposite side of the bottom plate portion. With the first engaging part of
The lower casing is in a state where the upper casing slides in one direction in the front-rear direction and is fitted into a space surrounded by the pair of the first engaging portions, the lower side wall portions, and the bottom plate portion. connector box that holds the irremovably said upper casing in the vertical direction. The connector box according to claim 1, wherein the receptacle connector accommodating portion has an upper wall portion that abuts on a connector upper wall surface that is an upper surface of the receptacle connector portion. The connector box according to claim 1 or 2, wherein the receptacle connector accommodating portion has a side wall portion that abuts on a connector side wall surface that is a side surface of the receptacle connector portion. The connector box according to any one of claims 1 to 3, wherein the upper casing has a pair of flanges having through holes.

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