JPH07312265A - Connector mounting structure - Google Patents

Abstract

PURPOSE:To directly install a connector to a protruding terminal part provided on a solid wiring base to be mounted on the back surface part of a meter case to reduce the cost, and house the connector in a recessed part on the case back surface part to minimize the protruding degree. CONSTITUTION:A protruding terminal part 21 formed in a prescribed end part of a solid wiring base 20 to be mounted on the back surface of a meter case 11 by a screw has a plurality of terminal patterns 24 connected to a wiring pattern on the base 20. Since a female type connector 30 is directly inserted to the terminal part 21, the structure is simplified, On the other hand, a recessed part 14 is formed on the part of the back surface part of the case opposed to the terminal part 21, and about the half of the thickness of the pattern of the connector 30 is housed therein. The insertion is smoothly performed by the guide groove 15 of the recessed part 14 and the guide projection 35 of the connector 30. The connector 30 is locked to the case 11 and prevented from being peeled by an external force by the fixing means 16 and locking means 17 of the recessed part 15 and the locking piece 36 and engaging projection 37 of the connector 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector mounting structure, and more particularly to a solid wiring board for driving a meter or an alarm device provided on the back surface of a meter case, such as a combination meter for vehicles. The present invention relates to a connector mounting structure applied when a signal is supplied to a solid wiring board via a connector.

[0002]

2. Description of the Related Art Generally, like a combination meter of an automobile, a wiring for driving an instrument in the meter is provided on the outer surface of a casing (meter case) of an instrument panel to which various instruments (meters) and warning lights are attached. And a wiring board are provided. As this wiring board, a solid plate-shaped solid wiring board made of a phenol resin or the like is generally used.

FIG. 9 (a) is a rear view of a combination meter 60 of a conventional automobile provided with speed gauges, tachometers, water temperature gauges, fuel gauges, and various warning lamps (both not shown). 61 is a meter case,
Reference numeral 62 is a mounting hole for a valve for illuminating an instrument or a warning lamp inside the combination meter, 63
Indicates the cable mounting portion of the speedometer. Reference numeral 70 denotes a solid wiring board mounted on the back surface of the meter case 61 with screws or the like.
A connector 71, a valve mounting hole 72, a cable mounting portion insertion hole 73, and the like are provided. The connector 71 supplies a drive signal, power, etc. from the outside to a wiring pattern (not shown) on the solid wiring board 70. Generally, a female type connector is used, and a male type connector is used for this. The connector 80 is attached. Reference numeral 81 denotes a lead wire connected to the male type connector 80.

FIG. 9 (b) shows a connector 71 shown in FIG. 9 (a).
3 is a partially enlarged cross-sectional view showing a structure of a mounting portion of the above to the wiring board 70. The housing of the connector 71 is made of synthetic resin such as plastic and is fixed to the wiring board 70 by means of screwing or welding. FIG. 9B shows a case of fixing by welding, and a projection 71a for mounting is provided on the lower surface of the housing of the connector 71 or the like. Then, when the connector 71 is attached to the wiring board 70, the projection 71a is inserted into the attachment hole 70a provided on the wiring board 70 side, and the tip end portion of the projection 71a is melted by heat and welded. Reference numeral 71b in FIG. 9B shows this welded portion. Inside the housing of the connector 71, connector pins 74 to be connected to the male connector 80 (see FIG. 9A) are provided. The connector pin 74 is bent toward the wiring board 70, and after the connector 71 is attached to the wiring board 70, it is soldered to the wiring pattern on the wiring board 70. FIG. 9C shows a cross section taken along the line CC of FIG. 9B, and shows the arrangement of the connector pins 74 in the connector 71.

In the example described above, the wiring board 70 is attached to the outside of the rear surface of the meter case 61. However, as shown in FIG. 10A, the wiring board 70 to which the connector 71 is attached is the wiring board 70 of the meter case 61. It may be attached to the inside of the back. In this case, the wiring board 70 is attached by welding or screws to a boss or the like provided on the inner side of the back surface of the meter case 61, and the connector 71 is provided on the portion of the meter case 61 facing each connector 71 on the wiring board 70. A window 64 is provided to expose the.

In this example, as shown in FIGS. 10 (b) and 10 (c), a protrusion 71a for attachment is provided on the side surface of the connector 71, and when the connector 71 is attached to the wiring board 70, The protrusion 71a is inserted into the mounting hole 70a provided on the wiring board 70 side, and the tip portion of the protrusion 71a is melted by heat and welded. 71b is a welded portion in which the protrusion 71a is melted by heat, and 74 is a connector pin.

Next, another conventional connector mounting structure will be described with reference to FIGS. The connector mounting structure shown in these drawings is one in which the connector is directly inserted into the wiring board to connect the electrical connector of the connector and the circuit of the wiring board. The connector 90 of FIG. A connector housing 92 in which an insertion groove 91 is formed up to the vicinity, a plurality of terminal accommodating portions 93 formed inside the connector housing 92, and an electrical connection arranged inside the terminal accommodating portion 93 so as to face each other one by one. A child arm 94 is provided, and a lock arm 95 having a lock claw 95a is provided outside the connector housing 92.

On the other hand, a wiring board 97 is mounted on the rear surface of the distribution box 96 of FIG. 12, and the electric connectors 94 of the connector 90 are connected to both end portions of the wiring board 97. A contact piece 98 of the electric circuit is formed. In addition, a concave groove 99 is formed on the back surface of the power distribution box 96, and a storage recess for housing the connector 90 is formed on the back surface of the power distribution box 96 with the wiring board 97 attached to the power distribution box 96. . A guide groove 100 into which the lock arm 95 enters is formed in the center of the groove 99, and an engaging piece 100a that engages with the lock pawl 95a is provided in the guide groove 100 in a protruding manner.

Then, as shown in FIG. 13, the connector 9
0 and the wiring board 97 are connected to each other. First, the wiring board 97 is fitted to the end portion of the wiring board 97 in which the contact piece 98 is formed in the insertion groove 91 of the connector housing 92, and then the connector 90 is sequentially inserted along the wiring board 97. Then, according to this, the lock arm 95 enters along the guide groove 100, and the connector 9
0 is completely accommodated in the accommodating recess, and when the electric connector 94 of the connector 90 is connected to the contact piece 98 of the wiring board 97, the lock claw 95a of the lock arm 95 is guided by the guide groove 100.
It is adapted to be engaged with the engaging piece 100a. This prevents the connector 90 from coming off the wiring board 97 during connection.

[0010]

However, as shown in FIGS.
In the conventional connector mounting structure configured as described above, there is a problem that the cost is high because the number of components of the connector 71 is large. In addition, the connector 71 is connected to the substrate 70.
Since the welding (or screwing) and the soldering of the connector pin 74 have to be performed when attaching to the connector, there is a problem that the man-hour for assembling the connector 71 is increased and the cost of the solid wiring board 70 is increased. It was Furthermore,
The connector 71 has a large degree of protrusion when mounted on the wiring board 70, which is disadvantageous when space saving is required on the back surface of the wiring board 70.

Further, in the connector mounting structure shown in FIGS. 11 to 13, when a force acts in the direction in which the connector 90 is pulled out from the wiring board 97, the lock claw 9
This can be prevented by the engagement of the engagement piece 5a with the engagement piece 100a in the guide groove 100, but when a force acts in the lateral direction of the connector 90, that is, in the direction in which the connector 90 is stripped from the distribution box 96. The connector 90 is a distribution box 96
Of the wiring board 97, and accordingly, the wiring board 97 is displaced.
Deforms to the rear side of the distribution box 96, and as a result, the connector 9
There is a problem in that the electrical connector 94 of 0, the wiring board 97, and the contact piece 98 may be poorly contacted with each other, or the wiring board may eventually be damaged.

Therefore, the present invention needs to be provided on the solid wiring board for mounting the solid wiring board for driving the instruments, alarms, etc. on the back surface of the case of the meter in which the instruments, alarms, etc. are built. Space saving can be achieved by simplifying the structure of a certain connector mounting part and reducing the degree of protrusion of the connector to the back side of the board, and external force was applied to the connector while the connector was mounted on the connector mounting part. In this case, it is an object of the present invention to provide a connector mounting structure in which the connector does not come off from the connector mounting portion or peel off from the case of the meter to cause poor contact between the connector and the wiring board or damage. I am trying.

[0013]

According to the present invention for achieving the above object, a solid wiring board for driving instruments, alarms, etc. is attached to the back of a case containing instruments, alarms, etc. A connector mounting structure in the case where a drive signal for the instrument, alarm device, or the like is supplied to the solid wiring board via a connector, wherein the connector mounting portion of the solid wiring board directly inserts the wiring board into the connector. Is formed on the convex terminal part as described above, and has a structure in which a plurality of terminal patterns that communicate with the wiring pattern on the wiring board are formed in parallel on one side or both sides of the terminal part. Is provided with a contact piece that is connected to the terminal pattern when the terminal portion of the wiring board is inserted, and the connector is attached to the case on the outside of the housing. Engaging portions for wearing fixed, and a locking portion is provided on the rear portion of the case, in a state where the wiring substrate is mounted, the portion opposed to the terminal portion,
A recess for receiving the connector is formed, and the recess is formed in the recess, and the engaging unit is engaged with the engaging portion so as to oppose a force acting in a direction of separating the connector from the rear surface of the case. And fixing means for locking the connector to the case by engaging with the locking portion in a partially fitted state.

Outside the housing of the connector,
Further, guide means for facilitating mounting of the connector may be provided, and a guide groove for guiding the guide means to fit the connector into the terminal portion may be provided in the recess. Also, the mounting position of the solid wiring board is
It can be inside or outside the back of the case.

[0015]

According to the present invention, it is not necessary to provide a female connector on the solid wiring board to which the connector is attached, and the connector is directly mounted on the convex terminal portion of the solid wiring board, so that the cost can be reduced. Further, since almost half of the thickness of the connector is accommodated in the recess provided in the back of the case containing the meter etc., the degree of protrusion of the connector onto the solid wiring board is reduced, and space can be saved. .

Further, when the connector is attached to the terminal portion,
Even when the engaging portion provided on the outside of the connector is engaged with the locking means of the case and the connector receives a force in the direction of peeling from the back surface of the case, the engaging portion and the locking means oppose this force. As a result, the connector is prevented from being stripped from the case, and at the same time, the locking portion of the connector is locked by the fixing means of the case, and the connector attached to the terminal portion is prevented from coming off from the terminal portion during use.

[0017]

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 shows the construction of an embodiment of a connector mounting structure of the present invention. In this embodiment, a solid wiring board 20 mounted on the back surface of a meter case 11 of a combination meter 10 of an automobile is mounted. The mounting structure of the connector 30 will be described.

First, the general structure of the combination meter 10 other than the portion related to the present invention of the meter case 11 and the solid wiring board 20 attached to the back surface of the meter case 11 will be described.

The combination meter 10 includes a speedometer,
Meters such as a tachometer, a water temperature meter, and a fuel gauge, and various warning lamps (not shown) are provided, and the meters and warnings inside the combination meter are provided on the rear side of the meter case 11 of the combination meter 10. A valve mounting hole 12 for illuminating a lamp and the like, a speedometer cable mounting portion 13 and the like are provided. The solid wiring board 20 is attached to the back surface of the meter case 11 with screws or the like. The solid wiring board 20 is provided with a valve mounting hole 12 or a speedometer provided on the back surface of the meter case 11. A valve mounting hole 22, a through hole 23 and the like are provided at positions corresponding to the cable mounting portion 13 of FIG.

In the combination meter 10 constructed as described above, according to the present invention, the solid wiring board 20 is used.
The female type connector 30 is directly attached to the. That is, in the present invention, the predetermined end of the solid wiring board 20 is the terminal portion 21 formed in a convex shape, and this terminal portion 21 is connected to the wiring pattern formed on the solid wiring board 20. Terminal pattern 24
Are provided in parallel. This terminal pattern 24
Is a terminal portion 21 when the solid wiring board 20 is a single-sided board.
On one side, and on the both sides of the terminal portion 21 in the case of a double-sided board. Then, the opening of the female connector 30 is directly inserted into the convex terminal portion 21.

On the other hand, in the state where the solid wiring board 20 is attached to the rear surface of the meter case 11, a female connector is provided at a portion facing the convex terminal portion 21 formed on the solid wiring board 20. A recess 14 is formed that can receive a housing of 30. In this embodiment, as will be described later in detail, the concave portion 14 has a guide groove 15 as a guide means for guiding the connector 30 to be smoothly fitted into the convex terminal portion 21, and the connector 30 has a convex shape. In order to prevent the connector 30 from coming off from the terminal portion 21 when it is fitted in the terminal portion 21,
Fixing means 16 for locking the connector 30 to the meter case 11 and locking means 17 for counteracting a force acting in a direction in which the connector 30 is separated from the meter case 11 are provided.

Further, in the female connector 30, the concave portion 14 of the meter case 11 is provided outside the housing of the connector 30 so that the inserting operation into the convex terminal portion 21 of the solid wiring board 20 can be smoothly performed. A guide projection 35 for guiding the connector 30 into the recess 14 along the guide groove 15 provided therein, and a locking piece (locking portion) 36 for engaging with the fixing means 16 provided in the recess 14. And recess 1
4 is provided with an engaging projection (engaging portion) 37 that engages with the locking means 17 provided in the interior of the vehicle. Further, inside the housing, there is provided a conductive contact piece (described later) that is connected to the terminal pattern 24 formed on the terminal portion 21 when the connector 30 is inserted into the convex terminal portion 21 of the solid wiring board 20. It is provided.

Next, detailed configurations of the meter case 11 of the combination meter 10, the solid wiring board 20 attached to the rear surface of the meter case 11, and the connector 30 will be individually described.

FIG. 2 shows a detailed configuration example of the meter case 11 of the combination meter 10 and the solid wiring board 20 attached to the back surface of the meter case 11. At the connector mounting position of the solid wiring board 20, a terminal portion 21 having a convex end is provided. The width of the terminal portion 21 corresponds to the width of the opening of the housing of the female connector 30, and both ends of the terminal portion 21 are tapered so that the connector can be easily inserted. When the solid wiring board 20 is a single-sided board, a plurality of terminal patterns 24 connected to the wiring patterns formed on the solid wiring board 20 are provided in parallel on one surface of the terminal portion 21. . When the solid wiring board 20 is a double-sided board, a plurality of terminal patterns 24 connected to the wiring patterns formed on the solid wiring board 20 are provided in parallel on both surfaces of the terminal portion 21. .

On the other hand, in the state where the solid wiring board 20 is attached to the back surface of the meter case 11 of the combination meter 10 to which the solid wiring board 20 is attached at the position indicated by the chain double-dashed line, the solid wiring board 20 is attached.
A concave portion 14 for receiving the female connector 30 is formed in a portion facing the convex terminal portion 21 formed on the. In this embodiment, the recess 14 is the solid wiring board 2
The three side walls 14a, 14 are formed in conformity with the shape of the housing of the connector 30 attached to the zero terminal portion 21.
Surrounded by b and 14c and the bottom wall 14d, it is recessed in a rectangular parallelepiped shape.

In this embodiment, the slit-shaped guide groove 1 is provided on the side wall 14b of the recess 14 so that the connector 30 can be smoothly fitted into the convex terminal portion 21.
5 are provided. Further, at the boundary portion between the side wall 14b of the concave portion 14 and the ceiling plate 11a of the meter case 11, the fixing means 16 for locking the connector 30 in a state where the connector 30 is fitted in the convex terminal portion 21, and the connector 30 are provided. Locking means 17 is provided to oppose the force acting in the direction of separation from the meter case 11.

The fixing means 16 has a ceiling plate 11a of the meter case 11 and a side wall 14 of the recess 14 so that the locking piece 36 can be inserted therethrough.
First cutout hole 16a formed in a corner portion with b
And a fixing portion 16b formed on the ceiling plate 11a side of the first cutout hole 16a, and the locking means 1
Reference numeral 7 denotes a second cutout hole 17a formed in a corner portion between the ceiling plate 11a of the meter case 11 and the side wall 14a of the recess 14 so that the engagement projection 37 can be inserted, and the second cutout hole 1
7a and a locking portion 17b formed on the side wall 14b side. Then, the first cutout hole 16a and the second cutout hole 16a
The notch hole 17a penetrates the ceiling plate 11a of the meter case 11 and communicates with the internal space.

FIGS. 3 (a) and 3 (b) show the structure of a female connector 30 which is fitted into the convex terminal portion 21 of the solid wiring board 20 constructed as shown in FIG. The connector 30 shown in FIG. 3 is used when the solid wiring board 20 is a single-sided board. On the outer surface of the upper side of the housing of the female type connector 30, the concave portion 1 of the meter case 11 is arranged so that the operation is smoothly performed when the female connector 30 is inserted into the convex terminal portion 21 of the solid wiring board 20.
4 is provided with a guide protrusion 35 to be inserted along the guide groove 15 provided inside. The guide protrusion 35 has a wall shape extending from the front end side to the rear end side of the connector 30 and extends to the central portion of the connector housing.

A locking piece 36 to be inserted into the first cutout hole 16a provided in the recess 14 is attached to the upper side of the guide projection 35. The locking piece 36 has a taper shape in which the thickness gradually increases from the front end side to the rear end side of the connector 30, and a step portion 36a is provided at a place where the wall thickness reaches a predetermined thickness. On the rear end side of the step portion 36a of the locking piece 36, there is formed a lock release piece 38 having a wall thickness reduced to the same extent as the wall thickness of the front side of the locking piece 36. The above-mentioned guide protrusion 35 is the locking piece 3
The locking piece 3 is provided only on the front end side with respect to the central portion in the longitudinal direction of 6 and is located on the rear end side of the guide protrusion 35.
The stepped portion 36a and the lock release piece 38 of 6 can swing with the end portion of the guide projection 35 as a fulcrum.

Further, on the outer surface of the upper side of the housing of the connector 30, a second cutout hole 17 provided in the recess 14 is formed.
The substantially L-shaped engaging projection 37 to be inserted into a is provided at two locations. Further, inside the housing of the connector 30, a plurality of contact pieces 39 are connected to the terminal pattern 24 formed on the terminal portion 21 when the connector 30 is inserted into the convex terminal portion 21 of the solid wiring board 20. It is provided. Lead wires 40 shown in FIG. 3A are connected to the contact pieces 39, respectively.

FIG. 4 (a) illustrates the function of the engaging projection 37 provided on the upper side of the housing of the connector 30 in the connector mounting structure of the embodiment constructed as described above. When the connector 30 is inserted into the convex terminal portion 21 of the solid wiring board 20, the engaging projection 37 is formed into the second cutout hole 17 a provided in the concave portion 14 of the meter case 11.
And is locked to the locking portion 17b of the side wall 14b of the recess 14. Therefore, the engaging projection 37 is formed in the second cutout hole 1.
The side wall 1 is inserted from 7a into the inside as shown by a chain double-dashed line.
By engaging the locking portion 17b of the connector 4b, the connector 3
0 resists the force acting in the direction of peeling from the meter case 11 and prevents the terminal portion 21 from being deformed outward, and as a result, the terminal pattern 24 of the terminal portion 21 and the contact piece 39 of the connector 30 are deformed. Therefore, contact failure will not occur.

FIG. 4 (b) illustrates the functions of the guide projection 35, the locking piece 36, and the unlocking piece 38 provided on the upper side of the housing of the connector 30 in the connector mounting structure of the embodiment configured as described above. To do. When the connector 30 is inserted into the convex terminal portion 21 of the solid wiring board 20, as the convex terminal portion 21 of the solid wiring board 20 is inserted into the opening of the connector 30, the guide protrusion 35 is recessed. Guide groove 1 formed on the side wall 14b of the
Engage 5. Therefore, when the guide protrusions 35 are subsequently inserted along the guide grooves 15, the contact pieces 39 in the openings of the connector 30 come into contact with the terminals 24 provided on the solid wiring board 20. . When the guide projection 35 enters the guide groove 15 to some extent, the tapered portion of the locking piece 36 is pushed by the end surface of the meter case 11, so that the locking piece 36 bends toward the housing.

The step 36a of the locking piece 36 enters the inside of the meter case 11 at the time when the engaging projection 37 is engaged with the locking means 17, or slightly before this, so that the locking piece 37 is locked. The bending of 36 returns to its original state, and the stepped portion 36a of the locking piece 36 is locked inside the fixed portion 16b of the ceiling plate 11a of the meter case 11 as shown by the chain double-dashed line. In this way, the connector 30 is locked in the recess 14 provided in the meter case 11 with the contact piece 39 in contact with the terminal 24 provided on the solid wiring board 20.

When the connector 30 thus locked is released, the locking piece 36 can be pulled by pulling the connector 30 while pressing the unlocking piece 38 toward the housing.
Is bent toward the housing side of the connector 30, the locking piece 36
The stepped portion 36a and the fixing portion 16b of the ceiling plate 11a are disengaged, and the connector 30 can be removed from the recess 14.

FIG. 5 shows the structure of the connector 30 when the solid wiring board 20 is a double-sided board. In this case, the contact piece 39 is provided inside the housing of the connector 30 so as to sandwich the wiring board 20, but the description of the other configuration and operation will be omitted because they are the same.

As described above, in the connector mounting structure of this embodiment, the pulling force of the lead wire 40 is dealt with by the engagement of the fixing means 16 and the locking piece (locking portion) 36.
Regarding the lateral stress of the connector 30,
Side faces of the recesses 14 provided in the meter case 11 are supported by the side walls 14a and 14c of the recess 14 and correspond to the force acting in the direction of separating the connector 30 from the meter case 11, and the locking means 17 is provided. It is supported by an engaging projection (engaging portion) 37 that engages. Therefore, in the connector mounting structure described above, unlike the case where the connector 30 is simply inserted into the solid wiring board 20, the solid wiring board 20 is damaged due to the stress from the lead wire 40 or the solid wiring board 20.
The adverse effect on the concave portion 1 provided on the back surface of the meter case 11.
4 or lock mechanism. Also,
About half of the connector 30 only protrudes from the solid wiring board 20.
Since the protrusion degree of 0 to the component mounting surface side is small, the space on the back surface of the solid wiring board 20 can be effectively used.

Although the above-described embodiments have described the connector mounting structure using the meter case as an example, the connector mounting structure of the present invention can be applied to the connector mounting structure in other equipment boxes. Further, the guide means is the locking piece 36.
It may be provided separately.

FIGS. 6 (a) and 6 (b) show the construction of another embodiment of the connector mounting structure of the present invention. In this embodiment, the rear surface of the meter case explained in the conventional example of FIG. 10 is shown. The mounting structure of the connector in the present invention when the solid wiring board is mounted inside is described. In order to make the description easier to understand, the same components as those of the embodiment described with reference to FIGS. 1 to 5 will be denoted by the same reference numerals.
Therefore, in FIG. 6A, 11 is a meter case, 20 is a solid wiring board mounted inside the rear surface of the meter case 11, and 30 is a terminal portion 2 of the solid wiring board 20.
It is a connector attached to 1.

Also in this embodiment, the terminal portion 21 of the solid wiring board 20 has a terminal pattern 24 (FIG. 6) connected to the wiring pattern formed on the solid wiring board 20.
(see (b)) are provided in parallel, the terminal portion 2
1 has a structure in which the opening of a female connector 30 having a structure similar to that of the above-described embodiment is directly inserted, and in order to receive the housing of the connector 30 on the rear surface of the meter case 11, the above-described structure is adopted. The same applies to the formation of the recess 14 having the same structure as that of the embodiment. On the other hand, in this embodiment, since the solid wiring board 20 is mounted inside the rear surface of the meter case 11, the side wall 1
The bottom wall 14d of the recess 14 surrounded by 4a, 14b, 14c and the bottom wall 14d is provided with an insertion hole 14e for inserting the convex terminal portion 21 formed in the solid wiring board 20.

In FIG. 6B, the solid wiring board 20 is mounted inside the rear portion of the meter case 11, and the insertion hole 14
6E is a partially enlarged view showing one concave portion 14 of FIG. 6A in a state where the terminal portion 21 of the solid wiring board 20 is inserted into e. The terminal portion 21 and the side walls 14a, 14b of the concave portion 14 when the terminal portion 21 is inserted into the concave portion 14,
The distance from 14c is the same as in the above-mentioned embodiment.
Therefore, in this embodiment, the distance from the rear surface of the meter case 11 to the side wall 14b of the recess 14 is longer than that in the above-described embodiments. In FIG. 6 (b), 15 is a guide groove,
Reference numeral 16 is a fixing means having a first cutout hole 16a and a fixing portion 16b, and 17 is a locking means having a second cutout hole 17a and a locking portion 17b.

The structure of the connector 30 in this embodiment may be the same as the structure of the connector 30 of the above-described embodiment described with reference to FIGS. 3 (a) and 3 (b), and the description thereof will be omitted.

FIGS. 7A and 7B show the connector 30 in this embodiment when the solid wiring board 20 is a single-sided board.
The function of the engaging projection 37, the guide projection 35, the locking piece 36, and the unlocking piece 38 provided on the upper side of the housing of FIG.
Is a double-sided board, the connector 3 in this embodiment
The functions of the guide projection 35, the locking piece 36, and the unlocking piece 38 provided on the upper side of the housing of No. 0 will be described. Also in this embodiment, when the connector 30 is inserted into the convex-shaped terminal portion 21 of the solid wiring board 20, the engaging protrusion 37 forms the concave portion 1 of the meter case 11 as shown by the chain double-dashed line.
4 is engaged with the second cutout hole 17a and the engaging portion 17b, and the engaging projection 37 engages with the engaging means 17, or a little before this, indicated by a chain double-dashed line. Thus, the stepped portion 36a of the locking piece 36 is locked inside the fixed portion 16b of the ceiling plate 11a of the meter case 11.

The insertion hole 14e formed in the bottom wall 14d of the recess 14 has a bottom wall 14d as shown in FIGS. 7 (a) and 7 (b).
Although it may be provided on the whole, as shown in FIG. 8, it may be provided only on the portion of the solid wiring board 20 where the terminal portion 21 is inserted.

Also in the connector mounting structure of this embodiment, the pulling force of the lead wire 40 is dealt with by the engagement of the fixing means 16 and the locking piece (locking part) 36, and the connector 30.
The lateral stress is dealt with by supporting the side surface of the connector 30 by the side walls 14a and 14c of the recess 14, and the locking means 17 is applied to the force acting in the direction of separating the connector 30 from the meter case 11. Since the engagement protrusions (engagement portions) 37 that engage with each other can be used, it is possible to prevent damage due to stress from the lead wire 40 and adverse effects on the solid wiring board 20.

[0046]

As described above, according to the present invention,
Since it is not necessary to mount the connector housing on the solid wiring board, the structure of the connector mounting part can be simplified, cost can be reduced, and the degree of protrusion of the connector onto the wiring board can be reduced, thus saving space. Can be achieved.

Further, since the engaging portion and the locking portion are provided on the outside of the connector and the engaging portion is engaged with the locking means of the case of the meter, the connector is separated from the rear surface of the case of the meter. Even when a force is applied, the force can be opposed to this force by the engaging portion and the locking means, the connector is not stripped from the case, and the convex terminal portion of the wiring board connected to the connector is laterally oriented. It is possible to prevent the connector from being deformed due to the above, and since the locking portion is locked by the fixing means of the case of the meter, it is possible to prevent the connector attached to the terminal portion from coming off from the terminal portion during use. Therefore, there is an effect that it is possible to prevent a contact failure between the terminal pattern of the terminal portion and the contact piece of the connector.

[Brief description of drawings]

FIG. 1 is an assembly perspective view of a rear side of a meter case of a vehicle combination meter showing the configuration of an embodiment of a connector mounting structure of the present invention.

FIG. 2 is a partially enlarged perspective view showing in detail the configurations of a connector mounting portion of the meter case and the solid wiring board of FIG.

3A is a partially enlarged perspective view showing in detail the configuration of a connector used when the solid wiring board of FIG. 1 is a single-sided board, and FIG. 3B is a view of the connector of FIG. FIG.

FIG. 4 (a) is a view showing the engagement between the connector and the solid wiring board when the connector of FIG. 1 is mounted on the solid wiring board which is a single-sided board, and the stopper projection provided on the connector and the meter case side. FIG. 2B is a partially enlarged cross-sectional view for explaining the engagement with the stopper groove in the recess, and FIG. 1B shows the engagement between the connector and the solid wiring board when the connector of FIG. 1 is attached to the solid wiring board which is a single-sided board. FIG. 6 is a partially enlarged cross-sectional view illustrating engagement between a guide projection provided on the guide groove and a guide groove in a recess provided on the meter case side, and engagement between a locking piece and a locking groove connected to the guide projection. .

FIG. 5 is a diagram showing an engagement between a connector and a solid wiring substrate when the solid substrate shown in FIG. 1 is a double-sided substrate, and a guide protrusion provided on the connector and a guide groove in a recess provided on the meter case side. FIG. 5 is a partially enlarged cross-sectional view illustrating engagement between a locking piece and a locking groove connected to the guide protrusion.

6A is an assembled perspective view of a meter case, a printed wiring board, and a connector showing the configuration of another embodiment of the connector mounting structure of the present invention, and FIG. 6B is a meter case and solid wiring of FIG. It is a partial expansion perspective view which shows the structure of the connector attachment part of a board | substrate in detail.

7 (a) is an engagement between the connector and the solid wiring board when the connector of FIG. 6 is mounted on a single-sided solid wiring board, and an engagement protrusion provided on the connector and a concave portion provided on the meter case side. FIG. 4B is a partially enlarged cross-sectional view for explaining the engagement with the locking means, and FIG. 6B is a partially enlarged cross-sectional view for explaining the engagement between the locking piece provided on the connector and the recess provided on the meter case side. .

FIG. 8 shows engagement between the connector and the solid wiring board when the connector of FIG. 6 is mounted on a double-sided solid wiring board, and engagement between a locking piece provided on the connector and a recess provided on the meter case side. It is a partial expanded sectional view explaining.

9A is an assembly perspective view showing a connector mounting structure to a solid wiring board which is mounted on the outside of the rear surface of a conventional combination meter meter case, and FIG. 9B is provided on the solid wiring board of FIG. 2C is a partial cross-sectional view of the mounting portion of the connector, and FIG. 3C is a cross-sectional view taken along the line CC of FIG.

FIG. 10 (a) is an assembly perspective view showing a connector mounting structure when a solid wiring board is mounted inside the rear surface of a conventional meter case, and FIG. 10 (b) is a connector mounting provided on the solid wiring board of (a). FIG. 6C is a partial cross-sectional view of the portion, and FIG. 6C is a view of the connector mounting portion provided on the solid wiring board of FIG.

FIG. 11 is a perspective view of a connector in a conventional connector mounting structure.

FIG. 12 is an exploded perspective view of a distribution box in a conventional connector mounting structure.

FIG. 13 is a sectional view showing a connection state between a connector and a wiring board in a conventional connector mounting structure.

[Explanation of symbols]

 10 Car Combination Meter 11 Meter Case 14 Recesses 14a, 14b, 14c Side Walls 14d Bottom Wall 14e Insertion Hole 15 Guide Groove 16 Locking Groove 17 Stopper Groove 20 Solid Wiring Board 21 Convex Terminal 24 Terminal Pattern 30 Connector 35 Guide Protrusion (Guide means) 36 Locking piece (locking section) 36a Step section 37 Engaging projection (engaging section) 38 Lock releasing piece 40 Lead wire

Claims (4)

[Claims] 1. A solid wiring board for driving the instruments, alarms, etc. is attached to the rear surface of a case containing the instruments, alarms, etc., and the instruments, alarms are connected to the solid wiring board via a connector. Is a connector mounting structure in the case where a drive signal such as is supplied, the projecting terminal portion is formed in the connector mounting portion of the solid wiring board so that the wiring board is directly inserted into the connector. Along with this, a plurality of terminal patterns communicating with the wiring pattern on the wiring board are formed in parallel on one side or both sides of the terminal section, and the terminal section is inserted into the housing of the connector when the terminal section of the wiring board is inserted. A contact piece for connecting to the pattern is provided, and an engaging portion for fixing the connector to the case and a locking portion are provided on the outside of the housing. A recess for receiving the connector is formed at a portion facing the terminal portion on the back surface of the case in a state where the wiring board is attached, and the recess is engaged with the engaging portion. Locking means that opposes a force acting in a direction in which the connector is peeled from the back surface of the case, and the connector is fitted to the locking part by engaging the locking part with the connector fitted in the terminal part. A connector mounting structure, characterized in that a fixing means for locking is provided. 2. A guide means for facilitating the mounting of the connector is provided outside the housing of the connector, while the recess is provided for guiding the guide means to fit the connector into the terminal portion. 2. The connector mounting structure according to claim 1, wherein the guide groove is provided. 3. The connector mounting structure according to claim 1, wherein the solid wiring board is mounted outside a rear surface of the case. 4. The solid wiring board is attached to the inside of a back surface of the case, and the convex terminal portion is inserted into an insertion hole provided in a bottom wall of the concave portion so as to be inside the concave portion. The connector mounting structure according to claim 1 or 2, wherein the connector mounting structure is located at