JP2002050420A - Connector for base board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To connect two base boards without making the size of a connector big, while efficiently absorbing mutual shift of position between the base boards. SOLUTION: For a connector C1 for a base board, connected to a circuit board P1 in order to connect the circuit board P1 to another circuit board, the first connection part 11 mounted on the circuit board and the second connection part 12 to be connected to a connection part of an opposing circuit board are mounted on a connector terminal 10 for the base board, further, a flexible relaying part 13 which is elastically transformable in X direction parallel with the base board, and in Y direction rectangularly crossing X direction, is interposed between both connection parts 11, 12. Further, at a housing 20 holding the connector terminal for the base board, the first holding part 21 holding the first connection part 11 and the second holding part 22 holding the second connection part 12 are enabled to move either in the X direction and in the Y direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board connector for electrically connecting circuit boards to each other.

[0002]

2. Description of the Related Art Conventionally, as a board connector for directly connecting circuit boards to each other, for example, Japanese Patent Laid-Open No. 10-3266 is disclosed.
Japanese Unexamined Patent Publication No. 51-51 is known. The outline is shown in FIG. 23 and FIG.

[0003] A connector C1 shown in FIG.
And a plurality of connector terminals 84 held therein. The housing 80 includes an inner movable housing 81.
And a fixed housing 82 surrounding the same as separate members. Each terminal 84 has a thin plate shape as a whole, and has a connection bending piece 85 at one end and a mounting leg 8 at the other end.
6 are formed. The mounting leg 86 is held by the fixed housing 82 and mounted on the circuit board P1 by means such as soldering.
Are held in a terminal accommodating chamber 81 a formed in the movable housing 81.

Further, an intermediate portion of each terminal 84 has a curved portion 88 which is thinner than the other portions and which is curved in an inverted U-shape on a vertical plane parallel to the thickness direction. Part 8
The elastic deformation (bending deformation) of the movable housing 81 and the connection bending piece 85 with respect to the mounting leg 86 and the fixed housing 82 (that is, with respect to the circuit board P1) in the horizontal direction of FIG. 24 (Y in FIG. 23). Direction).

On the other hand, as shown in FIG. 23, a connector C2 is mounted on a circuit board P2 opposed to the circuit board P1, and a plurality of pin-shaped terminals 92 held by a housing 90 of the connector C2. Protrudes downward from the lower surface of the circuit board P2 while being connected to the circuit of the circuit board P2. Each of the pin-shaped terminals 92 is connected to the connector C.
1 is inserted into each terminal accommodating chamber 81a, and each terminal 8
The circuit of both circuit boards P1 and P2 is electrically connected to each other by contacting the connection bending piece 85 of No. 4.

According to this structure, the movable housing 81 with respect to the circuit board P1 is formed by the elastic deformation of the bending portion 88.
Since the relative displacement (particularly, the relative displacement in the Y direction) of the connection bending piece 85 is allowed, even if the relative position of the circuit board P2 with respect to the circuit board P1 is slightly deviated in the Y direction from the regular mounting position, The relative displacement allows absorption.

[0007]

In the conventional structure, the displacement of the circuit board P2 in the Y direction with respect to the circuit board P1 can be absorbed, but it is curved in the X direction (FIG. 23) orthogonal to the Y direction. Since the portion 88 can hardly be elastically deformed, it is difficult to absorb the displacement of the circuit board P2 in the X direction.

Means for absorbing such displacement in the X direction include, for example, the width of the terminal accommodating chamber 81a and the width of the connection bending piece 85 (dimension in the X direction in FIG. 23, dimension in the depth direction in FIG. 24). It is conceivable that a margin is provided so that the pin-shaped terminal 92 can be received even if it is displaced in the same direction. In this way, the width of the terminal accommodating chamber 81a and the width of the connection bending piece 85 are increased. It is necessary to increase the pitch of the pin-shaped terminals 92 by the amount to be provided. Particularly, when the number of terminals is large, the connectors C1, C2
However, there is an inconvenience that the overall size is significantly increased.

SUMMARY OF THE INVENTION In view of such circumstances, an object of the present invention is to provide a good connection while effectively absorbing a displacement between circuit boards without increasing the size of a connector.

[0010]

As a means for solving the above problems, the present invention is implemented on a first circuit board and provided on a second circuit board different from the first circuit board. A board connector terminal provided in a board connector for electrically connecting the second circuit board and the first circuit board by fitting with the provided connection portion, wherein the first circuit board is provided. A first connection portion mounted thereon, a second connection portion electrically connected to a connection portion of a second circuit board fitted to the board connector, and the first connection portion. And a relay unit for connecting the second connection unit to the second connection unit, and the relay unit is configured to control a relative displacement of the second connection unit with respect to the first connection unit to a first displacement parallel to the first circuit board. Direction and the first
A second direction parallel to the circuit board and orthogonal to the first direction.
(Embodiment 1).

[0011] The present invention is also directed to a second circuit board mounted on a first circuit board and fitted to a connecting portion provided on a second circuit board different from the first circuit board. A board connector for electrically connecting a board and the first circuit board, the board connector comprising: a board connector terminal; and a housing for holding the board connector terminal. A first holding portion for holding the first connection portion of the terminal, and a second holding portion capable of fitting to the connection portion of the second circuit board and holding the second connection portion of the connector terminal for the board And the second holding portion is relatively displaceable in the first direction and the second direction with respect to the first holding portion (claim 4).

[0012] According to the above configuration, the second connection portion is parallel to the substrate in the first direction and the first direction is orthogonal to the first connection portion mounted on the first circuit board at the terminal. In addition to being relatively displaceable in the first and second directions, the second holding portion holding the second connection portion with respect to the first holding portion holding the first connection portion in the housing is the first holding portion. And the second circuit board connected to the second connection portion are displaced relative to each other in the directions of the first and second directions. This can be absorbed by the relative displacement of the second connecting portion and the second holding portion with respect to the first connecting portion and the first holding portion. Therefore, regardless of the deviation of the relative positional relationship, each circuit board can be installed at a predetermined position while the first circuit board and the second circuit board are satisfactorily connected without generating a large stress.

[0013] In the board connector terminal, at least a portion of the relay portion may have the first thickness in the thickness direction.
It is preferable to form a thin plate parallel to the circuit board and have a bent portion that bends on a plane perpendicular to the thickness direction (claim 2). According to this configuration, the relay portion can be bent and deformed (bending elastic deformation) in the plate thickness direction, as a matter of course.
The bent portion can be easily elastically deformed also in a direction orthogonal to the plate thickness direction. That is, the relay portion can be elastically deformed in both the first direction parallel to the substrate and the second direction orthogonal to the first direction, and the first deformation of the second connection portion with respect to the first connection portion by the elastic deformation. Direction and second
Relative displacement in the direction of.

[0014] Further, the thickness direction of the relay portion is the first direction.
It is also preferable that a first thin plate portion parallel to the direction of the second direction and a second thin plate portion whose thickness direction is parallel to the second direction are provided in series (claim 3). According to this structure, the first thin plate portion can be bent and deformed in its thickness direction (first direction), and independently of this, the second thin plate portion can be bent in its thickness direction (second direction). Direction).
The first connection portion and the second connection portion connected by the relay portion can be relatively displaced in both the first direction and the second direction.

On the other hand, in the housing, even if the first holding portion and the second holding portion are completely separated from each other to be separate members, the two holding portions can be displaced relative to each other. However, in this case, since both holding portions are connected only via the relay portion of each terminal, the strength load on the relay portion is increased, and each holding portion is connected to each holding portion. Work becomes complicated. On the other hand, the housing has a connecting portion for connecting the first holding portion and the second holding portion, and the connecting portion has a second holding portion with respect to the first holding portion. If it has a shape that is elastically deformed so as to allow relative displacement in the first direction and the second direction (claim 5), the connecting portion reduces the load on the strength of each terminal, and The relative displacement of the second holding portion in the first direction and the second direction with respect to the first holding portion can be allowed by the elastic deformation of the connecting portion while facilitating the work of assembling the terminal.

Specifically, the connecting portion includes a first thin plate portion whose thickness direction is parallel to the first direction and a second thin plate portion whose thickness direction is parallel to the second direction. Are preferably provided in series (claim 6). According to this configuration, the relative displacement of the second holding portion in the first direction and the second direction with respect to the first holding portion is allowed by the bending deformation of each thin plate portion in the thickness direction.

[0017] Further, the connecting portion has, at least in part, a bent portion having a shape of a thin plate whose plate thickness direction is parallel to the first circuit board and bent on a plane orthogonal to the plate thickness direction. (Claim 7). In this case, the connecting portion is bent and deformed in the plate thickness direction of the bent portion, and can be elastically deformed on the plane by the bent portion bent on a plane orthogonal to the plate thickness direction.

The "connecting portion" of the second circuit board fitted to the board connector according to the present invention may be a connector mounted on the second circuit board. An end of the second circuit board may be a part on the surface of which a connection conductor is mounted (claim 9).

According to the present invention, there is further provided a circuit board having an electric circuit formed on a surface thereof, and the board connector according to any one of claims 4 to 9, wherein a first one of the board connector terminals in the board connector is provided. Is a circuit board with a connector mounted on the circuit board (claim 10).

[0020]

Preferred embodiments of the present invention will be described below with reference to the drawings.

First Embodiment (FIGS. 1 to 10) In this embodiment, a first circuit board P1 shown in FIG.
And the second circuit board P2 shown in FIG. 8 are arranged in parallel and opposed to each other.
The mounting position of P2 is determined, and the board connector C1 according to the present invention is mounted on the first circuit board P1 among them.

As shown in FIG. 1, the board connector C1 has a large number of terminals 10 arranged in two rows on the left and right, and a housing 20 for holding these terminals 10.

Each terminal 10 is formed by bending a single conductive plate, and has a shape as shown in FIG. That is, at the lower end of the terminal 10,
A strip-shaped first connection portion 11 extends in the Y direction (first direction; a direction orthogonal to the terminal arrangement direction) in the Y direction parallel to the first circuit board P1. 2 connecting portions 12 are erected, and the thickness direction thereof is in the X direction (second direction; parallel to the first circuit board P1 and orthogonal to the Y direction); (Parallel direction). The first connecting portion 11 and the second connecting portion 12 are integrally connected via a relay portion 13.

The relay portion 13 has a thin plate shape in which the plate thickness direction is parallel to the X direction similarly to the second connection portion, and has a plane perpendicular to the plate thickness direction (a plane parallel to the Y direction) at an intermediate portion thereof. It has a curved portion 13a that is curved in a substantially S-shape on a (vertical surface). Therefore, the relay portion 13 can be flexibly deformed in the thickness direction (X direction), and can also be elastically deformed in the Y direction by the bending elastic deformation of the curved portion 13a. In other words, the second connecting part 12 connected to the first connecting part 11 via the relay part 13 can be displaced relative to the first manufacturing part 11 in both the X direction and the Y direction. Has become.

A pair of right and left claws 14A project from the lower end of the relay portion 13 in the X direction, and a pair of right and left claws are provided at the upper end of the relay portion 13 at positions shifted from the claws 14A in the Y direction. Are protruded in the X direction.

On the other hand, the housing 20 is formed of an insulating material such as a synthetic resin, and as shown in FIG. 1 and FIGS.
First holding unit 21 installed on first circuit board P1
, A second holding part 22 disposed above the connecting part, and a connecting part 24 connecting the two holding parts 21 and 22 integrally.

The first holding portion 21 has a rectangular plate shape extending in the terminal arrangement direction (X direction), and a concave portion 21a for receiving the first connection portion 11 of each terminal 10 is formed on the lower surface thereof. The terminal insertion groove 21b extends vertically through the first holding portion 21 from the concave portion 21a to the upper surface of the first holding portion 21. These terminal insertion grooves 21b are arranged in the terminal arrangement direction, and the terminal 1 is inserted into each terminal insertion groove 21b.
The second connection unit 12 and the relay unit 13 can be inserted.

Further, a groove 21c shallower than the projection of the claw 14A is formed at a position corresponding to the lower claw 14A of the terminal 10 in a lower portion of each terminal insertion groove 21b. When the claw 14A is press-fitted (FIG. 4), the lower end portion of the relay portion 13 where the claw 14A is formed and the first connection portion 11 connected thereto are held on the first holding portion 21 side. It has become. On the other hand, a groove 21d having a depth (horizontal depth) equal to or greater than the protrusion of the claw 14A is formed at a position corresponding to the upper claw 14B of the terminal 10 in each terminal insertion groove 21b,
Through the groove 21d, the upper claw 14B is
Can be passed from bottom to top.

On the other hand, like the first holding portion 21, the second holding portion 22 has a container shape extending in the terminal arrangement direction (X direction) and opening upward. This second holding unit 2
2 has a terminal insertion groove 22a penetrating it vertically.
Are formed on the inner surfaces of the left and right side walls of the second holding portion 22.
A terminal holding groove 22b into which the outer edge of the second connection portion 12 of each terminal 10 is inserted is formed at a position continuous with the terminal insertion groove 22a. The terminal insertion groove 22a and the terminal holding groove 22b are formed immediately above the terminal insertion grooves 21a, and the upper half of the terminal 10 inserted into the terminal insertion groove 21a from below is directly used for each of the terminal insertion grooves 21a. It is inserted into the terminal insertion groove 22a and is inserted into the terminal holding groove 22b.

Further, a groove 22c shallower than the protrusion of the claw 14B is formed at a position corresponding to the upper claw 14B of the terminal 10 in a lower portion of each terminal insertion groove 22a. Claw 14B passing through the groove 21b
Is press-fitted from below (FIG. 4), so that the claw 14B
The upper end portion of the relay portion 13 formed with is formed and the second connection portion 12 connected to the upper end portion is held on the second holding portion 22 side.

The connecting portion 24 has a first thin plate portion 24a extending upward from both ends in the longitudinal direction of the first holding portion 21 and a second thin plate portion extending from the first thin plate portion 24a to the inside in the longitudinal direction. The second thin plate portion 24b connected to both ends in the longitudinal direction of the holding portion 22 is integrally provided. That is, the first thin plate portion 24a and the second thin plate portion 24b are arranged in series between the first holding portion 21 and the second holding portion 22.

The first thin plate portion 24a has a plate thickness direction parallel to the X direction, and is capable of bending (elastic bending deformation) in the X direction. The second
The thickness direction of the thin plate portion 24b is parallel to the Y direction, and can be bent and deformed in the Y direction. Accordingly, the second holding portion 22 can be displaced relative to the first holding portion 21 in both the X direction and the Y direction due to the independent bending deformation of the thin plate portions 24a and 24b.

On the other hand, the second circuit board P2 shown in FIG.
The first circuit board P1 is arranged above and parallel to the first circuit board P1, and a board connector C2 is provided on a lower surface thereof (in FIG. 8, the lower surface of the board is drawn upward for convenience). Has been implemented. This board connector C2 is
A plurality of terminals 30 respectively corresponding to the terminals 10 of the board connector C1 and a housing 40 for holding these terminals 30 are provided.

Each terminal 30 is formed by bending a single conductive plate, and has a shape as shown in FIG. That is, the terminal 30 has a strip-shaped board connecting portion 31 extending in the Y direction, and a thin plate-shaped terminal fitting portion 32 that stands upright from one end of the board connecting portion 31. The terminal fitting portion 32 has a bifurcated shape in which a pair of left and right connection bending pieces 32a are branched from a base thereof, and a contact projection 32b protrudes inward from a distal end of each connection bending piece 32a. The two contact projections 32b are expanded outward in accordance with the bending deformation of the two connection bending pieces 32a. A claw 32c is formed at the base of the terminal fitting portion 32 so as to protrude to the left and right outer sides. The claw 32c is press-fitted into a not-shown groove formed on the housing 40 side. The terminal 30 is fixed to the housing 40.

The housing 40 is formed of an insulating material such as a synthetic resin and has alternately ridges 41 and valleys 42 as shown in FIG. 10
An insertion groove 42a into which the thin plate-shaped second connection portion 12 can be inserted is formed. Then, each terminal 30 is connected to the housing 4 so that each insertion groove 42a and a space sandwiched by both connection bending pieces 32a of the terminal fitting portion 32 are matched.
0. That is, the second connecting portion 12 of the terminal 10 inserted into each of the insertion grooves 42a interrupts (terminal fitting) between the contact protrusions 32b of both the connection bending pieces 32a as they are, and these contact protrusions 32b and the second The connection portion 12 is brought into pressure contact with the connection bending piece 32a by the elastic return force of the connection bending piece 32a (the state of FIG. 7).

Further, in this embodiment, as shown in FIG. 9, the terminals 30 of the connector C2 are arranged in a staggered manner,
Reduction of connector dimensions in the direction is achieved.

If the connectors C1 and C2 described above are used, for example, both boards P1 and P2 can be installed at predetermined locations while electrically connecting the circuit boards P1 and P2 in the following manner.

The first connection portion 11 of each terminal 10 in the connector C1 is fixed on a suitable conductor on the circuit board P1 by soldering or the like, so that the connector C1 is mounted on the circuit board P1. The connector C2 is mounted on the circuit board P2 by fixing the board connection portion 31 of each terminal 30 on the appropriate conductor on the circuit board P2 by soldering or the like. Each connector C1,
The mounting position of C2 is as follows for both connectors C1 and C2.
The two circuit boards P1 and P2 are set so as to be located at regular relative positions (installation positions described below) in a state where the two are connected.

The second connection portion 12 of each terminal 10 of the connector C 1 is inserted into each insertion groove 42 of the connector C 2, and the second connector 12 and the terminal fitting portion 32 of each terminal 30 of the connector C 2 are connected to each other. Are fitted as shown in FIG. That is, the connectors C1 and C2 are connected to each other. By this coupling, the circuits incorporated in both circuit boards P1 and P2 are electrically connected to each other.

While the connectors C1 and C2 are still connected, both circuit boards P1 and P2 are attached to a predetermined installation location (for example, a board attachment portion formed on the inner surface of the cabinet). At this time, both circuit boards P
1 and P2 are located at predetermined relative positions (relative positions at which the circuit boards P1 and P2 can be installed at the installation locations) by coupling the two connectors C1 and C2.
When there is an error in the mounting position of the connectors C1 and C2 on each of the circuit boards P1 and P2, or when there is an error in the setting of the installation location (for example, there is an error in the position of the board mounting portion formed on the inner surface of the cabinet). ), The relative positional relationship between the circuit boards P1 and P2 deviates from the relative positional relationship between the installation locations of the circuit boards P1 and P2 by the amount of the error.

However, in the connector C1 according to this embodiment, the terminal 1 connected to the connector C2
The second connection portion 12 and the second holding portion 22 holding the second connection portion are fixed to the circuit board P1 side by the elastic deformation of the relay portion 13 of the terminal 10 and the elastic deformation of the connecting portion 24 of the housing 20. First connecting part 11
And the first holding unit 21 holding the same in the X direction,
Since relative displacement is possible in any of the Y directions, it is possible to absorb a shift in the relative positional relationship between the circuit boards P1 and P2 by the relative displacement. Therefore, even when there is a deviation in the relative positional relationship, the connectors C1,
C2 and the circuit boards P1 and P2 do not generate a large stress, and the circuit board P
1, P2 can be installed at a predetermined installation position.

Second Embodiment (FIG. 11) In this embodiment, instead of the terminal 10 shown in FIG. 2, a terminal 10 as shown in FIG. 11 is used as a terminal of the connector C1. The illustrated terminal 10 is formed by bending a single conductive plate material in the same manner as described above, has a first connection portion 11 and a second connection portion 12 at both ends, and has a lower portion and an upper portion. Claw 14 for fixing housing
A and 14B, but a first thin plate portion 15a and a second thin plate portion 15b are provided in a relay portion 15 connecting the two connecting portions 11 and 12.
Are provided in series.

The first thin plate portion 15a has a thickness direction Y
It has a thin plate shape parallel to the direction (first direction), and is capable of bending deformation (bending elastic deformation) in the Y direction. On the other hand, the second thin plate portion 15b has a thin plate shape whose thickness direction is parallel to the X direction (second direction) orthogonal to the Y direction, and is bent and deformed (bending elastic deformation) in the X direction. It is possible. Such a change in the thickness direction of the two thin plate portions 15a and 15b can be realized by, for example, a process shown by a two-dot chain line and an arrow in FIG. That is, the first thin plate portion 1
A single thin plate portion including a thin plate portion corresponding to 5a and a thin plate portion corresponding to the second thin plate portion 15b (a portion indicated by a two-dot chain line in FIG. 5) is formed, and an intermediate portion of the thin plate portion indicated by an arrow in FIG. It is sufficient to bend at 90 ° around the vertical axis.

Also in such a terminal 10, the second connecting portion 12 is moved in both the X direction and the Y direction with respect to the first connecting portion 12 by the mutually independent bending deformation of the thin plate portions 15a and 15b. Relative displacement is possible. Therefore,
This terminal 10 is connected to the terminal shown in FIG. 1 similarly to the first embodiment.
And the like, the second connecting portion 12 and the second holding portion 2 are connected to the circuit board P1.
2 can constitute the connector C1 that can be relatively displaced in both the X direction and the Y direction.

Third Embodiment (FIGS. 12 to 15) Also in this embodiment, the first connecting portion 11 and the second connecting portion 12 formed at both ends of each terminal 10 are the same as those of the first connecting portion.
Embodiment 2 and the second embodiment are common,
The relay portion 16 connecting the two connection portions 11 and 12 has a narrow column shape punched out so that its width dimension is equivalent to the dimension in the thickness direction.

As described above, even when the cross-sectional shape of the relay portion 16 is made to be a small square shape (that is, a shape having the same plate thickness and width), the relay portion 16 is bent in both the X direction and the Y direction. Possible structures are possible. However, according to the structure shown in the first embodiment or the second embodiment, compared with the narrow columnar relay portion 16 shown in the third embodiment, the relay portion 13 or the relay portion 15 can be used. There is an advantage that elastic deformation in the X direction and the Y direction can be realized while maintaining high strength.

In the third embodiment, the terminal 10 is formed with a projecting portion 17A projecting laterally at the lower end of the relay portion 16 and at the upper end of the projecting portion 17A in a direction perpendicular to the projecting portion. A protruding portion 17C that protrudes from
Also, a ridge 1 projecting laterally at the lower end of the second connecting portion 12.
7B, while the first holding portion 21 and the second holding portion 22 of the housing 20 are formed with concave portions 21e and 22g that are opened to the side, respectively, and the projecting portions 17A and 17B are formed in the concave portions 21e. By press-fitting the protruding portions 17B into the recesses 22g, the first holding portion 21 holds the lower end portion of the relay portion 16 and the first connection portion 11 connected thereto, and the second holding portion 22 holds the second connection portion 11. Is held.

As described above, in the present invention, the mounting direction of the terminal 10 to the housing 20 does not matter.

Fourth Embodiment (FIG. 16) In this embodiment, a connecting portion 26 for connecting a first holding portion 21 and a second holding portion 22 in a housing 20 as shown in FIG. A pair of left and right pillars 26a and V
It has a character portion 26b and a thin plate portion 26c integrally.

Each of the column portions 26a and the V-shaped portion 26b has a thin plate shape in which the plate thickness direction is parallel to the X direction, and can be bent and deformed in the X direction. The two pillar portions 26a extend upward from both ends in the longitudinal direction of the first holding portion 21 in a state where they are arranged in the Y direction.
b. The V-shaped portion 26b is bent into a V-shape whose middle portion projects downward, and
In addition, a substantially M-shaped bent portion is formed, and the intermediate portion of the V-shaped portion 26b can be displaced in the Y direction orthogonal to the X direction by elastic deformation of the bent portion. The intermediate portion and both ends in the longitudinal direction of the second holding portion 22 are connected to each other via a thin plate portion 26c, and the thin plate portion 26c has a plate thickness direction parallel to the Y direction. .

According to this structure, even when the thickness of the thin plate portion 26c and the dimension in the X direction are large and the deformation of the thin plate portion 26c is hard to occur, the thin plate portion having a thickness direction parallel to the X direction, that is, Due to the elastic deformation of the column 26a and the V-shaped portion 26b in the X direction and the elastic deformation of the Y-direction (mainly, the elastic deformation of the V-shaped portion 26b), the X of the second holding portion 22 with respect to the first holding portion 21 is changed. The relative displacement in the direction and the Y direction can be allowed.

Fifth Embodiment (FIGS. 17 to 22) The main features of a connector C1 according to the fifth embodiment are the following two points.

Regarding the structure of the second holding part 22 In the above embodiments, the second holding part 22 is connected to the connector C of the other party.
In the fifth embodiment, the end portion of the counterpart second circuit board P2 is connected to the end portion of FIG.
22 are formed as shown in FIG.
A large number of substrate connecting conductors 4 are arranged in parallel on the surface of the protrusion 2, and the protrusion 2 is connected to the second holding portion 2.
2, the second circuit board P2 and the first circuit board P1 are electrically connected via the board connecting conductor 4 and the connector C1.

Specifically, an insertion groove 23 extending in the longitudinal direction (X direction) is formed in the second holding portion 22 of the housing 20, and the second circuit board P2 is inserted into the insertion groove 23 from above. Of the projection 2 can be inserted.

A terminal 10 as shown in FIG. 18 is incorporated in the housing 20. Like the terminal 10 shown in FIG. 2, the terminal 10 integrally includes a first connection portion 11, a second connection portion 12, and a relay portion 13 connecting the two connection portions 11 and 12, FIG.
Is punched out into a shape having a continuous base portion 12a, vertical portion 12b, horizontal portion 12c, and contact bending piece 12d as shown in FIG.

The vertical portion 12b extends upward from an outer portion of the base portion 12a (a portion far from the insertion groove 23 in a state of being incorporated in the housing 20 as shown in FIG. 19), and the horizontal portion 12c is Inside from the upper end of the portion 12b (the right side in FIG. 18, the side facing the insertion groove 23 in FIG. 19)
Extends to. The contact bending piece 12d extends downward from the inner end of the horizontal portion 12c, and has a contact projection 12e projecting inward at the lower end thereof.
Can be displaced outward in the horizontal direction by bending deformation of the contact bending piece 12d.

The terminals 10 are incorporated into the housing 20 in two rows on the left and right sides of the insertion groove 23 so that each contact projection 12e projects into the insertion groove 23.
By inserting the protruding portion 2 of the circuit board P2 into the insertion groove 23 (FIGS. 20 and 22), each connection conductor 4 provided on the protruding portion 2 is connected to each of the terminals 10 on the left and right sides. The mounting position of each terminal 10 is set so as to be pressed against the protrusion 12e (FIG. 20).

Regarding the shape of the connecting portion 27 Also in the fifth embodiment, the connecting portion 27 for connecting the first holding portion 21 and the second holding portion 22 to the housing 20 is formed. The connecting portion 27 has a shape that can be elastically deformed in both the X direction and the Y direction.

As shown in FIG. 17, the connecting portion 27
A thin plate portion 27a extending upward from both ends of the first holding portion 21 in the longitudinal direction (X direction), a first arm portion 27b branched from the upper end of the thin plate portion 27a in the left-right direction (Y direction),
Each of the first arm portions 27b extends in the X direction so as to pass through the outside of the second holding portion 22, and has an end integrally formed with a second arm portion 27c connected to the second holding portion 22. are doing. Then, the thin plate portion 27a and the first arm portion 2
7b is a direction parallel to the X direction and the thin plate portion 27a can be bent and deformed in the X direction.
The thickness direction of the second arm portion 27c is parallel to the Y direction, and the second arm portion 27c can be bent and deformed in the Y direction.

Also in this connector C1, the X, Y of the second connecting portion 12 with respect to the first connecting portion 11 is caused by the elastic deformation of the relay portion 13 in the X direction and the Y direction of the terminal 10.
Relative displacement in both directions is possible, and the second holding portion 22 with respect to the first holding portion 21 is elastically deformed in the X and Y directions of the connecting portion 27 in the housing 20.
Can be relatively displaced in both the X and Y directions, the first circuit board P1 on which the connector C1 is mounted and the second circuit board P2 on which the connection portion 2 is fitted to the connector C1. Even when the positional relationship is displaced, this can be absorbed by the relative displacement of the second connecting portion 12 and the second holding portion 22 with respect to the first connecting portion 11 and the first holding portion 21, Each circuit board P without generating large stress
1, P2 can be arranged at a predetermined installation location.

In addition, the present invention can take the following embodiments as examples.

In the present invention, the connecting portions 24, 26 and 27 of the housing 20 are omitted and the first holding portion 21 and the second
May be completely separated from the holding section 22. Also in this case, by incorporating the terminal 10, the first holding portion 21 and the second holding portion 22 are connected via the relay portion so as to be relatively displaceable. However, the connecting portions 24, 26, elastically deformable in the X and Y directions as described above.
By forming the connection portion 27 and connecting the holding portions 21 and 22 in advance, the strength load on each terminal 10 is reduced, and the operation of incorporating the terminal 10 into the housing 20 can be easily performed in a more stable state. There are advantages.

In the illustrated example, the terminal arrangement direction (X direction) is the second direction, and the direction orthogonal to the terminal arrangement direction (Y direction) is the first direction. Is not limited to this, and may be any direction that is parallel to the circuit board and orthogonal to each other. The layout of each terminal may be freely set.

[0064]

As described above, according to the present invention, the first connection between the first connection portion mounted on the circuit board and the second connection portion connected to the connection portion of the counterpart circuit board is performed. A board connector terminal having a relay portion elastically deformable in a second direction orthogonal to the board connector terminal, further comprising the board connector terminal and a housing, wherein the housing holds the first connection portion. The first holding portion to be connected and the second holding portion to hold the second connection portion are board connectors that can be relatively displaced in the first direction and the second direction. This can effectively connect the two boards while effectively absorbing the displacement between the circuit boards without causing the problem.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a board connector according to the present invention is mounted on a first circuit board in a first embodiment of the present invention.

FIG. 2 is a perspective view of a board connector terminal provided in the board connector.

FIG. 3 is a sectional front view showing a state before the board connector terminal is incorporated into a housing.

FIG. 4 is a cross-sectional front view showing a state where the board connector terminal is assembled in a housing.

FIG. 5 is a perspective view showing a state before the board connector terminal is assembled into a housing.

FIG. 6 is a perspective view showing a state where the board connector terminal is incorporated in a housing.

FIG. 7 is a cross-sectional perspective view showing a state in which the board connector and a mating board connector are coupled to each other.

FIG. 8 is a perspective view showing a state where the mating board connector is mounted on a second circuit board.

FIG. 9 is a plan view of the mating board connector.

FIG. 10 is a perspective view of terminals provided on the mating board connector.

FIG. 11 is a perspective view of a board connector terminal according to a second embodiment of the present invention.

FIG. 12 is a perspective view showing a state before a terminal is incorporated in a housing in a board connector according to a third embodiment of the present invention.

FIG. 13 is a perspective view showing a state where terminals are incorporated in a housing in the board connector according to the third embodiment of the present invention.

FIG. 14 is a cross-sectional side view showing a state before a terminal is incorporated into a housing in the board connector according to the third embodiment of the present invention.

FIG. 15 is a sectional side view showing a state where terminals are incorporated in a housing in the board connector according to the third embodiment of the present invention.

FIG. 16 is a perspective view showing a state in which a board connector according to the present invention is mounted on a first circuit board in a fourth embodiment of the present invention.

FIG. 17 is a perspective view of a board connector according to a fifth embodiment of the present invention.

18 is a perspective view of a board connector terminal incorporated in the board connector shown in FIG. 17;

19 is a cross-sectional side view showing a state before the protrusion of the second circuit board is inserted into the board connector shown in FIG. 17;

20 is a cross-sectional side view showing a state where the protrusion of the second circuit board is inserted into the board connector shown in FIG. 17;

FIG. 21 is a perspective view showing a state before a protrusion of the second circuit board is inserted into the board connector shown in FIG. 17;

FIG. 22 is a perspective view showing a state where the protrusion of the second circuit board is inserted into the board connector shown in FIG. 17;

FIG. 23 is a perspective view showing an example of a conventional board connector.

24 is a sectional side view of the board connector shown in FIG. 23;

[Explanation of symbols]

 C1 Board connector according to the present invention C2 Counterpart board connector P1 First circuit board P2 Second circuit board 2 Projection (connection) 4 Connection conductor 10 Board connector terminal 11 First connection 12 2 connection part 13, 15, 16 relay part 13a curved part (bent part) 15a first thin plate part 15b second thin plate part 20 housing 21 first holding part 22 second holding part 24, 26, 27 connection Portion 24a First thin plate portion 24b Second thin plate portion 26a Column portion 26b V-shaped portion (bent portion) 27a Thin plate portion (first thin plate portion) 27c Second arm portion (second thin plate portion)

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshito Sakai 1-7-10 Kikuzumi, Minami-ku, Nagoya, Aichi Prefecture Inside Harness Research Institute, Inc. (72) Inventor Hiroki Hirai 1-Kikuzumi, Minami-ku, Nagoya, Aichi Prefecture 7-10 Inside Harness Research Institute, Inc. (72) Inventor Noriichi Okamura 1-7-10 Kikuzumi, Minami-ku, Nagoya City, Aichi Prefecture Inside Harness Research Institute, Inc. (72) Inventor Shigeki Sakai Nagoya, Aichi Prefecture 1-7-10 Kikuzumi, Minami-ku Harness Research Institute, Ltd. F-term (reference) 5E023 AA04 AA16 BB02 BB22 BB29 CC02 CC22 CC26 DD26 EE03 EE29 GG02 GG15 HH01 HH08 HH16 HH18 HH21

Claims (10)

[Claims] A first circuit board mounted on the first circuit board;
Is provided on a board connector that electrically connects the second circuit board and the first circuit board by fitting with a connection portion provided on a second circuit board different from the second circuit board. A board connector terminal, which is electrically connected to a first connection portion mounted on the first circuit board and a connection portion of a second circuit board fitted to the board connector. A second connection portion; and a relay portion connecting the first connection portion and the second connection portion, and the relay portion has a relative position of the second connection portion with respect to the first connection portion. The first displacement
A shape that is elastically deformed so as to allow a first direction parallel to the first circuit board and a second direction parallel to the first circuit board and orthogonal to the first direction. Board connector terminal. 2. The board connector terminal according to claim 1, wherein at least a part of the relay portion has a thin plate shape in which a plate thickness direction is parallel to the first circuit board, and is connected to the plate thickness direction. A board connector terminal having a bent portion having a shape that bends on an orthogonal plane. 3. The board connector terminal according to claim 1, wherein the relay portion has a first thin plate portion whose thickness direction is parallel to the first direction, and a thickness direction corresponding to the second direction. A board connector terminal, wherein a parallel second thin plate portion is provided in series. A first circuit board mounted on the first circuit board;
A board connector for electrically connecting the second circuit board and the first circuit board by fitting with a connection portion provided on a second circuit board different from the first circuit board. A board connector terminal according to any one of claims 1 to 3, and a housing for holding the board connector terminal, wherein the housing holds a first connection portion of the board connector terminal. A first holding portion, and a second holding portion that can be fitted to the connection portion of the second circuit board and holds the second connection portion of the board connector terminal. A board connector characterized in that the second holding part is relatively displaceable in the first direction and the second direction with respect to the part. 5. The board connector according to claim 4, wherein the housing has a connecting part connecting the first holding part and the second holding part, and the connecting part is
A board connector having a shape that is elastically deformed so as to allow relative displacement of the second holding portion with respect to the first holding portion in the first direction and the second direction. 6. The board connector according to claim 5, wherein the connecting portion has a first thin plate portion whose thickness direction is parallel to the first direction, and a thickness direction parallel to the second direction. A second thin plate portion is provided in series. 7. The board connector according to claim 5, wherein at least a part of the connecting portion has a thin plate shape in which a thickness direction is parallel to the first circuit board, and is orthogonal to the thickness direction. A board connector characterized by having a bent portion having a shape that bends on a flat surface. 8. The board connector according to claim 4, wherein said second holding portion is fitted with a connector mounted on said second circuit board. Board connector. 9. The board connector according to claim 4, wherein the second holding portion is an end of the second circuit board and a portion on a surface of which a connection conductor is mounted. A board connector characterized by being fitted with a connector. 10. A circuit board having an electric circuit formed on a surface thereof, and a board connector according to any one of claims 4 to 9, wherein a first connection portion of a board connector terminal of the board connector is provided. Is mounted on the circuit board.