JPH11329637A - Connecting device between printed wiring boards - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connecting device between printed wiring boards without degradation in reliability of connection despite of repeated use. SOLUTION: A first insulating housing 11 with a first printed wiring board 2 mounted thereon and a second insulating housing 21 with a second printed wiring board 4 mounted thereon are engaged with each other in such a manner that the opening of a first recess 12 and the opening of a second recess 22 face each other. The first recess 12 receives therein a first light emitter 13 for converting an electric signal input from a conductive patter of the first printed wiring board 2 into an optical signal so as to emit it toward the opening. The second recess 22 receives therein a second light emitter 23 for converting the optical signal emitted from the first light emitter 13 into an electric signal so as to output it toward a conductive pattern of the second printed wiring board 4. The electric signal is output from the first printed wiring board 2 to the second printed wiring board 4 via the optical signal, thus transmitting the electric signal with high reliability without using any contact part such as a contact.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for electrically connecting a printed wiring board to another printed wiring board, and more particularly, to an electric signal flowing through a conductive pattern of a printed wiring board. And a connection device between printed wiring boards for outputting to a conductive pattern of another printed wiring board.

[0002]

2. Description of the Related Art A conventional connection device 1 between printed wiring boards.
For example, as shown in FIG. 8, a pair of female connector 101 and male connector 110 that are fitted and connected to each other are used as shown in FIG.

[0003] Referring to FIG. 1, this conventional connection measure 100 is described. In a female connector 101, a plurality of L-shaped contacts 103 are fixed to an insulating housing 102 in two parallel rows so that the contacts are equally spaced. ing. One side of each contact 103 is exposed in a fitting recess 104 formed in the insulating housing 102, and the other side, which is bent horizontally, passes through the insulating housing 102 to form a solder connection portion 103 a. .

[0004] Solder connection portion 103a of each contact 103
The female connector 101 is mounted on the lower surface of the printed wiring board 120 by opposing the land portion 121 of the corresponding conductive pattern of the printed wiring board 120 and soldering each solder connection portion 103a to the land portion 121. .

[0005] A male connector 110 mounted on another printed wiring board 130 is fitted and connected to the female connector 101. This mating connector, male connector 110
The insulating housing 111 has a substantially rectangular parallelepiped shape, and fits into the fitting recess 104 having a rectangular outline.

The insulating housing 111 has a plurality of contacts 112 formed by punching a conductive metal plate from below.
Are fixed by press fitting. The contact 112 is engaged with the insulating housing 111 as shown in FIG.
Locking portion 112a for fixing the fixing member 12 to the insulating housing 111
A female contact portion 112b cantilevered at the base end of the locking portion 112a; and a solder connection portion 112c extending horizontally from the base end of the locking portion 112a along the bottom surface of the insulating housing 111.
It consists of

The positioning boss 113 integrated with the insulating housing 111 is provided with the positioning hole 13 of the printed wiring board 130.
0a, and the male connector 110 is connected to the printed wiring board 1
In a state where the solder connection portions 112c are positioned on the lands 30, the solder connection portions 112c of the respective contacts 112 are located on the corresponding land portions 131 of the printed wiring board 130, and
1 is soldered.

When the female connector 101 is fitted and connected to the male connector 110 thus configured, the contact 11
The second female contact portions 112b contact the contacts 103 exposed in the fitting recesses 104, respectively, and the corresponding conductive patterns on the printed wiring board 120 and the printed wiring board 130 are electrically connected via the contacts 103 and the contacts 112. .

[0009]

[Problems to be solved by the invention]

However, this conventional apparatus 100 for connecting between printed wiring boards needs to form the contacts 103 and 112 for each conductive pattern of the printed wiring board to be connected and attach them to the insulating housings 102 and 111. In addition, the assembly process is complicated.

Further, since the electrical connection is established by the contact between the contacts 103 and 112 made of a conductive metal plate or the like, dust adheres to the contact surface to cause a contact failure, or the contact is repeated during repeated insertion and removal. There is a problem that the reliability of the contact is degraded due to wear of the plating on the surfaces of 103 and 112.

Furthermore, since the printed wiring boards 120 and 130 are electrically connected by the electrical connection between the contacts 103 and 112, noise may be applied to the ground line.

The cantilevered female contact portion 112b
The height of the male connector 110 and the female connector 101 is equal to or more than a certain value because a certain length of a spring span is required, and the distance between the printed wiring boards 120 and 130 to be laminated is restricted by the spring span. The height of the connectors 101 and 110 cannot be less than the required height. Therefore, the miniaturization of the entire apparatus has been limited.

SUMMARY OF THE INVENTION In view of the above problems, the present invention does not require the use of a contact, and therefore does not require a step of mounting and processing the contact. It is an object to provide a connection device between wiring boards.

It is another object of the present invention to provide a connection device between printed wiring boards which does not transmit noise between the printed wiring boards and has excellent transmission characteristics.

It is another object of the present invention to provide a connection device between printed wiring boards which can reduce the space between the printed wiring boards to be connected and reduce the size of the entire device.

[0017]

According to a first aspect of the present invention, there is provided a connection device between printed wiring boards, wherein a first recess is provided in a recess, and the first printed wiring board is provided on a back surface with respect to a surface on which the first recess is formed. A first insulating housing to be mounted, a second insulating housing in which a second recess is provided, and a second printed wiring board mounted on a back surface with respect to a surface on which the second recess is formed; and a first insulating housing. And an engagement portion formed in the second insulating housing, wherein the opening of the first recess and the second recess are opposed to each other, and one end is exposed in the first recess, and the other end is the first recess. A first lead portion that is drawn out to the back surface of the insulating housing and electrically connected to the conductive pattern of the first printed wiring board, and is housed in the first recess so as to be electrically connected to the first lead portion, and is received from the first lead portion. Converts an input electrical signal to an optical signal and A first light emitting portion that emits light to the side, and a second lead portion that exposes one end into the second recess and draws out the other end to the back surface of the second insulating housing to be electrically connected to the conductive pattern of the second printed wiring board. Receiving the optical signal emitted from the first light emitting portion when the first insulating housing and the second insulating housing are engaged so as to be electrically connected to the second lead portion. And a second light receiving unit that converts the signal into a signal and outputs the signal to the second lead unit.

An electric signal flowing through the conductive pattern of the first printed wiring board is input to the first light emitting portion via the first lead portion and is converted into an optical signal. This optical signal is received by the second light receiving section, converted into an electric signal, and output to the conductive pattern of the second printed wiring board via the second lead section. Since a contact component such as a contact is not used to output an electric signal from the first printed wiring board to the second printed wiring board, the electric signal can be transmitted with high reliability.

Since the signal is transmitted by the optical signal, the first
Noise on the printed wiring board side is not transmitted to the second printed wiring board.

Since the first insulating housing and the second insulating housing respectively do not accommodate contacts requiring a certain height, the height of these housings can be reduced, and the fitted first insulating housing can be used. The first printed wiring board and the second printed wiring board can be supported at a small interval by the and the second insulating housing.

According to a second aspect of the present invention, the first lead portion and the second lead portion include an output lead portion and an input lead portion that are insulated from each other, and the first light emitting portion includes a first light emitting portion. The second light receiving section is housed in the second recess so as to be electrically connected to the output lead of the second lead, and is housed in the first recess so as to be electrically connected to the input lead of the lead. A second light emitting unit which is housed in the second recess so as to be electrically connected to the input lead of the second lead, converts an electric signal input from the second lead into an optical signal, and emits light toward the opening; The first light-emitting portion is housed in the first recess so as to be electrically connected to the output lead portion of the first lead portion, and the second light-emitting portion emits light when the first insulating housing and the second insulating housing are engaged with each other. The optical signal is converted to an electrical signal and output to the first lead. A first light receiving unit which is characterized in that it comprises.

An electric signal flowing through the conductive pattern of the second printed wiring board is input to the second light emitting unit via the input lead of the second lead, and is converted into an optical signal. This optical signal is received by the first light receiving section, converted into an electric signal, and output to the conductive pattern of the first printed wiring board via the output lead section of the first lead section. Therefore, between the first printed wiring board and the second printed wiring board,
Input and output of electric signals can be performed.

According to a third aspect of the present invention, the second insulating housing is formed so as to be loosely fitted with the first insulating housing, and the first insulating housing and the second insulating housing are relatively movable. It is characterized by engaging.

Since the first insulating housing and the second insulating housing are relatively movably engaged with each other, even if there is a displacement between the first printed wiring board and the second printed wiring board, the engagement can be achieved. At this time, the displacement is absorbed by the relative movement.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described.
This will be described with reference to FIGS. A connection device 1 between printed wiring boards according to an embodiment of the present invention includes a transmitting connector 10 that emits an optical signal and a receiving connector 20 that receives the optical signal.

As shown in FIGS. 2 and 3, the transmitting side connector 10 has a first recess 12 formed on the front side by a bottom plate 11a and a rectangular frame 11b erected along the periphery thereof. And an insulating transmission side housing 11. Engagement projections 17, 17 that engage with engagement holes 27, 27 of the receiving side housing 21, which will be described later, are formed in opposing side walls of the rectangular frame 11 b.

An infrared light emitting element 13 that converts an electric signal into an infrared signal and emits light toward the opening side (upward in FIG. 2) of the first recess 12 is provided on the bottom plate 11a in the first recess 12. A light emission control element 1 that outputs a specific electric signal to the light emitting element 13 and controls driving of the infrared light emitting element 13
4 and other circuit elements are mounted.

As shown in FIGS. 1 and 6, the transmitting connector 10 is mounted on the surface of the first printed wiring board 2.
A plurality of insulated input leads 15, 15 are formed on both sides of the bottom plate 11a to electrically connect the circuit elements mounted in the first recess 12 to each other. ing.

The patterning (printing wiring) of the input lead portions 15, 15,...
The two-shot method (non-catalytic method) of the rconnect device is performed at the same time as molding the transmission-side housing 11 with an insulating synthetic resin. A printed wiring board with the leads 15 printed on both sides may be formed, and this printed wiring board may be integrated with the rectangular frame 11b by means such as engagement with the bottom plate 11a.

As shown in FIG. 3A, the surface of the bottom plate 11a (the inner bottom surface of the first recess 12) corresponds to the legs of each circuit element such as the infrared light emitting element 13, the light emission control element 14, and the like. The input lands 15 of the input leads 15, 15...
are exposed, and these legs are connected by soldering. An input lead portion 15 formed on the surface,
15 ··· Through hole 1 drilled in bottom plate 11a
6, 16,..., As shown in FIG.
1a, the input lead legs 15b, 15b,... Of the input lead portions 15, 15,.
Are soldered to the corresponding conductive patterns 3, 3,... Of the first printed wiring board 2 respectively.

In this embodiment, four conductive patterns 3, 3,... Are allocated to a power supply line, a ground line, a signal line, and the remaining one is set to a spare empty line.
The light emission control element 14 outputs an electric signal flowing through the signal line,
The electric signal is output to the infrared light emitting element 13 in a 1B1B baseband system. The infrared light emitting element 13
It is driven and controlled by this electric signal, emits an optical signal,
In the photoelectric conversion processing in the light emission control element 14 and the infrared light emitting element 13, noise superimposed on the electric signals of the conductive patterns 3, 3,... Is removed. Each circuit element of the transmitting connector 10 is connected via the input lead 15
The operation is performed by a power supply supplied from the power supply line 3 of the first printed wiring board 2.

The receiving connector 20 has a structure similar to that of the transmitting connector 10 as shown in FIGS. 4 and 5, and the insulating receiving housing 21 has the entirety of the transmitting housing 11. It has a shape to cover. That is, the receiving-side housing 21 is formed with the top plate portion 21a and the rectangular frame portion 21b erected along the periphery thereof to form the second concave portion 22 that opens on the front side (upward in FIG. 4). An engagement hole 27 with which the engagement protrusion 17 of the transmission side housing 21 is engaged is formed on an opposite side wall of the frame portion 21b.
27 are drilled.

As shown in FIG. 1, the transmission connector 10 and the reception connector 20 are fitted with the opening of the first depression 12 of the transmission connector 10 facing the opening of the second depression 22 of the reception connector 20. When they are combined, the receiving side housing 21
The engagement projections 17 are engaged with the engagement holes 27, 27, and the fitted state of both is maintained.

The receiving-side connector 20 has a rear surface (the upper side in FIG. 1) of the receiving-side housing 21 mounted on the surface of the second printed wiring board 4, and the four conductive patterns of the second printed wiring board 4. In order to electrically connect 5, 5,... And each circuit element mounted in the second concave portion 22,
A plurality of output leads 25 are formed on both sides of the top plate 21a. The four conductive patterns 5, 5,... Correspond to the conductive patterns 3, 3,..., And the power supply line, the ground line, the signal line, and the remaining one are allocated to spare free lines.

An infrared light receiving element 23 for receiving an infrared signal emitted from the infrared light emitting element 13 and converting the infrared signal into an electric signal is provided on the top plate 21a in the second recess 22.
Circuit elements such as a control element 24 for outputting the electric signal output from the control signal 3 to the conductive pattern 5 of the signal line are mounted. The infrared light receiving element 23 is configured to receive the infrared signal from the infrared light emitting element 13, and the second concave portion facing the infrared light emitting element 13 when the transmitting connector 10 and the receiving connector 20 are fitted together. 22. In this connection, the transmitting connector 10 and the receiving connector 20
The rectangular frame portions 11b and 21b are asymmetrical with the corresponding corners as inclined surfaces 11c and 21c, respectively.
The engagement protrusions 17, 17 are not fitted in different directions.
Are engaged with the engagement holes 27, 27, the infrared light emitting element 13 and the infrared light receiving element 23 always face each other.

As shown in FIGS. 4 and 5, the output lead portion 2 is provided on the surface of the top plate portion 21a (the inner bottom surface of the second concave portion 22).
The output land portions 25a, 25a,... Of 5, 5,... Are exposed, and the legs of the respective circuit elements such as the infrared light receiving element 23 and the control element 24 are connected by soldering. These output leads 25, 25...
The output lead legs 25b, 25 which are drawn out to the back surface of the top plate 21a and soldered to the corresponding conductive patterns 5, 5,.
b ... The output lead portions 25, 25,.
The patterning (printed wiring) method of input lead 1
The description is omitted since it is the same as 5 and 15.

Each circuit element of the receiving side connector 20 is operated by a power supplied from the power supply line 5 of the second printed wiring board 4 via the output lead portion 25.

Next, the first printed wiring board 2 is connected to the printed wiring board connecting device 1 thus configured.
A method for connecting the second printed wiring board 4 to the second printed circuit board 4 will be described.

First, the transmitting connector 10 is surface-mounted on the first printed wiring board 2 on the output side shown in FIG. 1, and the receiving connector 2 is mounted on the second printed wiring board 4 on the input side.
0 is surface-mounted. By this surface mounting, the conductive patterns 3, 3,... Of the first printed wiring board 2 are electrically connected to predetermined circuit elements 13, 14 in the transmitting connector 10 by the input lead portions 15, 15,. The conductive patterns 5, 5,... Of the second printed wiring board 4 are electrically connected to predetermined circuit elements 23, 24 in the receiving connector 20 by output lead portions 25, 25,.

Subsequently, the second recess 2 is inserted into the opening of the first recess 12.
With the two openings facing each other, the transmission connector 10 and the reception connector 20 are fitted with each other while the inclined surfaces 11c and 21c of the reception connector 20 are aligned with each other, and the engagement protrusions 17 and 17 are engaged with the engagement holes 27 and 27. To maintain the fitted state. By this fitting, the first printed wiring board 2 and the second printed wiring board 4 are supported in parallel with each other as shown in FIG. 6, and the infrared light emitting element 13 and the infrared light receiving element 23 face each other.

The circuit elements 13, 14, 23, 24 of the transmitting and receiving connectors 10, 20 are supplied with power from the conductive patterns 3, 5 of the respective printed wiring boards 2, 4, and operate. The electric signal flowing through the conductive pattern 3 assigned to the signal line of the wiring board 2 is converted from the infrared light emitting element 13 into an infrared signal via the input lead 15 and the light emission control element 14,
Light is emitted to Further, the infrared light receiving element 23 photoelectrically converts the infrared signal, and the light receiving control element 24, the output lead 2
The signal is output to the conductive pattern 5 assigned to the signal line of the second printed wiring board 4 via the signal line 5. Therefore, an electric signal flowing through the conductive pattern 3 of the first printed wiring board 2 is output to the conductive pattern 5 of the second printed wiring board 4.

In each of the above embodiments, an electric signal is output in one direction from the conductive pattern 3 of the first printed wiring board 2 to the conductive pattern 5 of the second printed wiring board 4. It is also possible to provide a connection device that includes a pair of infrared light emitting elements and infrared light receiving elements and outputs electric signals bidirectionally between printed wiring boards.

FIG. 7 shows a connection device 30 between printed wiring boards according to the second embodiment for outputting an electric signal in both directions. The transmission side connector 10 according to the first embodiment and The receiving side connector 20 further includes a circuit component on the other side, an output lead portion, and an input lead portion, respectively.
The transmission-side connector 40 and the reception-side connector 50 are fitted and connected to each other. Regarding these configurations, the first
The same reference numerals are given to the same configurations as those of the embodiment, and the description thereof will be omitted.

As shown in FIG. 7, the infrared light receiving element 43 further mounted on the transmitting connector 40 and the receiving connector 50.
The infrared light emitting element 53 and the infrared light emitting element 53 are arranged to face each other when the transmitting side housing 41 and the receiving side housing 51 are fitted. The infrared light receiving element 43 is insulated from the input lead 15 and is assigned to a signal line of the first printed wiring board 2 via an output lead (not shown) patterned on the transmission side housing 41. The infrared light emitting element 53 is electrically connected to an output conductive pattern (not shown), and is insulated from the output lead 25 via an input lead (not shown) patterned on the receiving housing 51. , Are electrically connected to input conductive patterns (not shown) assigned to signal lines of the second printed wiring board 4.

The receiving housing 51 and the transmitting housing 41 are provided with the engaging holes 5 as in the first embodiment.
7, 57 and engaging projections 4 engaging with the engaging holes 57, 57
7, 47 are provided at the corresponding portions. The receiving side housing 51 is slightly larger than the outer peripheral surface of the transmitting side housing 41 and is formed in a shape in which the transmitting side housing 41 is loosely fitted.
In the fitted state, the engagement holes 57, 47 are moved so that the engagement protrusions 47, 47 can be slightly moved while being engaged with the engagement holes 57, 57.
The inner diameter of 7 is formed slightly wider than the engagement protrusions 47, 47.

When the engagement projections 47 are engaged with the engagement holes 57, the fitted state of the transmission side housing 41 and the reception side housing 51 is maintained. At this time, the electric signal flowing through the conductive pattern 3 of the first printed wiring board 2 is output to the second printed wiring board 4 by the infrared signal emitted from the infrared light emitting element 13 to the infrared light receiving element 23 as described above. The electric signal flowing through the input conductive pattern of the second printed wiring board 4 is
Through an input lead (not shown), an infrared light emitting element 53, an infrared light receiving element 43, and an output lead of the transmitting side housing 41.

The first printed wiring board 2 and the second printed wiring board 4 are supported in parallel to each other by the connection device 30 between the printed wiring boards. Even if the relative position is different from the designed interval due to, for example, a process of attaching to the housing or a manufacturing error, the displacement can be absorbed by the movement of the engaging protrusions 47, 47 in the engaging holes 57, 57. .

Further, the transmitting side housing and the receiving side housing do not necessarily have to be formed in a rectangular parallelepiped shape as described above.
Electrical connection can be made while supporting the printed wiring board 2 and the second printed wiring board 4 at a predetermined interval.

The transmission housings 11 and 41 and the reception housings 21 and 51 have been described as being mounted on the first printed wiring board 2 and the second printed wiring board 4 by way of example. As shown in FIG. The first printed wiring board 2 and the legs of the electronic components such as the infrared light emitting element 13 and the infrared light receiving element 23 housed in the first recess 12 and the second recess 22 are used as the input lead 15 or the output lead 25. Solder connection is made on the back side of the second printed wiring board 4, and the transmission side housing 1
The rear surfaces of the receiver housings 21 and 51 may be attached to the substrates 2 and 4.

Further, the input lead 15 and the output lead 2
5 may be partially or wholly replaced by a conductive metal fitting. For example, a band-shaped metal plate is insert-molded in an insulating housing, and one end facing the concave portions 12 and 22 is connected to the infrared light emitting element 13. The other end may be connected to an electronic component such as the infrared light receiving element 23 and the other end may be connected to the conductive patterns of the printed wiring boards 2 and 4 by soldering.

Further, in the above-described embodiment, the electric signal is transmitted in the baseband system using the pair of infrared light-emitting elements and infrared light-receiving elements. If serial-to-parallel conversion is performed and parallel-to-serial conversion is performed on the receiving side, a pair of infrared light emitting elements and infrared light receiving elements can transmit electric signals of a plurality of signal lines.

Furthermore, although the receiving housing is fitted to the transmitting housing, the receiving housing may be fitted to cover the transmitting housing.

[0053]

According to the present invention, electrical connection is not made by contact between elastic contacts.
The height of the insulating housing can be designed based on the height of the circuit components of the light emitting unit and the light receiving unit, and the printed circuit boards can be electrically connected to each other while being supported at a small interval.
Therefore, the size of the entire apparatus can be reduced.

Since the printed circuit boards are supported by the fitting of the insulating housing, there is no need to use a member such as an insulating spacer for maintaining the interval.

Further, since electrical connection is not made by contact, even if connection is repeated, the reliability of the connection does not deteriorate.

Furthermore, since the electric signal flowing through one printed wiring board is converted into an optical signal, it can be insulated from the other printed wiring board, and the transmission characteristics can be improved.

Further, since there is no need to attach a conductive contact component such as a contact to the insulating housing, the workability of assembly is simplified.

According to the second aspect of the present invention, furthermore, electric signals can be input and output bidirectionally between the first printed wiring board and the second printed wiring board.

According to the third aspect of the present invention, the positional deviation between the first printed wiring board and the second printed wiring board can be absorbed, so that it is possible to design the manufacturing and assembly errors relatively coarsely. it can.

[0060]

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a connection of a connection device 1 between printed wiring boards according to an embodiment of the present invention.

FIG. 2 is a perspective view of a transmission-side connector 10;

FIG. 3A is a plan view of a transmission-side connector 10;
(B) is a bottom view.

FIG. 4 is a perspective view of a receiving-side connector 20;

FIG. 5A is a plan view of the reception-side connector 20;
(B) is a bottom view.

FIG. 6 is a longitudinal sectional view showing connection by a connection device 1 between printed wiring boards.

FIG. 7 is a longitudinal sectional view showing a connection device 30 between printed wiring boards according to a second embodiment for outputting electric signals in two directions.

FIG. 8 is a cross-sectional view showing a conventional connection device 100 between printed wiring boards.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connection device between printed wiring boards 2 1st printed wiring board 4 2nd printed wiring board 11 1st insulating housing (transmission side housing) 12 1st recessed part 13 1st light emission part 15 1st lead part (input lead part) 17 Engagement projection 21 Second insulating housing (receiving side housing) 22 Second concave portion (22) 23 Second light receiving portion 25 Second lead portion (output lead portion) 27 Engagement hole 43 First light receiving portion 53 Second light emitting portion

Claims (3)

[Claims] A first insulative housing (1) in which a first recess (12) is recessed and a first printed wiring board (2) is mounted on a back surface with respect to a surface on which the first recess (12) is formed. 1
1) and a second insulative housing (21) in which a second recess (22) is recessed and a second printed wiring board (4) is mounted on the back surface with respect to the surface on which the second recess (22) is formed. ), A first insulating housing (11) and a second insulating housing (2).
1) formed in the first concave portion (12) and the second concave portion (22).
With the openings facing each other, the engaging portions (1
7, 27), one end is exposed in the first concave portion (12), and the other end is drawn out to the back surface of the first insulating housing (11) to be electrically connected to the conductive pattern of the first printed wiring board (2). The first lead portion (15) is connected to the first lead portion (15) so as to be electrically connected to the first lead portion (15). A first light emitting portion (13) that converts the light into a signal and emits light toward the opening side, one end of which is exposed in the second concave portion (22), and the other end is drawn out to the back surface of the second insulating housing (21), A second lead portion (25) for electrically connecting to the conductive pattern of the printed wiring board (4); and a second insulating portion (22) housed in the second concave portion (22) so as to be electrically connected to the second lead portion (25). When the housing (11) and the second insulating housing (21) are engaged A second light receiving unit (23) for converting the optical signal emitted from the first light emitting unit (13) into an electric signal and outputting the electric signal to a second lead unit (25). Connection device between wiring boards. 2. The first lead section and the second lead section each include an output lead section and an input lead section which are insulated from each other, and the first light emitting section (13) has an input lead section (15) of the first lead section. ) Is accommodated in the first recess (12) so as to be electrically connected to the second recess (22) so as to be electrically connected to the output lead (25) of the second lead. The electrical signal received from the second lead portion is converted into an optical signal so as to be electrically connected to the input lead portion of the second lead portion so as to be electrically connected to the input lead portion of the second lead portion. A second light emitting portion (53) that emits light toward the opening side, and is housed in the first recess (12) so as to be electrically connected to the output lead portion of the first lead portion, and the first insulating housing (1).
When 1) and the second insulating housing (21) are engaged,
The print according to claim 1, further comprising: a first light receiving unit (43) that converts the optical signal emitted from the second light emitting unit into an electric signal and outputs the electric signal to a first lead unit. Connection device between wiring boards. 3. The second insulating housing (21) is formed to be loosely fitted with the first insulating housing (11), and is relatively movable so that the first insulating housing (11) and the second insulating housing (21) are movable. Are engaged with each other.
Or the connection device between printed wiring boards according to 2.