JPH11224738A - Plug-jack type optical/electrical transmission device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the body height of a jack in a plug-jack type optical/electric shared transmission device in which an electric plug for electric transmission and an optical plug for optical transmission are selectively inserted. SOLUTION: In a body 10 of a jack, the thickness of a peripheral wall of a plug insertion hole is reduced, and the overall height is reduced. To prevent the upward swelling of the body 10 when a plug is inserted into the plug insertion hole, an opening part 12c for absorbing the deformation is provided on an upper surface part of the body 10. The opening part 12c is covered by a metallic cover, and the metallic cover is connected to a grounding line on a substrate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plug / plug used for signal transmission between digital audio equipment and information equipment using a disk or cassette tape as a recording medium.
The present invention relates to a jack-type photoelectric sharing transmission device.

[0002]

2. Description of the Related Art Plug-jack type transmission devices used for signal transmission between digital audio equipment include:
There are three types: those that transmit optical signals, those that transmit electrical signals, and those that can transmit both signals. Hereinafter, these conventional examples will be described.

FIGS. 11 to 13 show a first conventional example of a plug / jack type transmission apparatus. This plug-jack type transmission device transmits an optical signal, and includes a rectangular plug 1 attached to the tip of an optical fiber and a rectangular jack 2 into which the rectangular plug 1 is inserted. Square Jack 2
Includes a rectangular body 2b having an insertion hole 2a into which the rectangular plug 1 is inserted, and an optical semiconductor element 2c provided in the body 2b at the tip end of the insertion hole 2a.

[0004] When the square plug 1 is fitted into and held in the insertion hole 2a of the square jack 2, the coupling between the optical semiconductor element 2c and the optical fiber is realized, and the optical signal is transmitted. .

FIGS. 14 and 15 show a second conventional example of a plug / jack type transmission apparatus. This plug-jack type transmission device also transmits an optical signal, and includes a round plug 3 attached to the tip of an optical fiber and a round jack 4 into which the round plug 3 is inserted. Round jack 4
Are a round-shaped body 4b having an insertion hole 4a into which the round plug 3 is inserted, an optical semiconductor element 4c provided in the body 4b at the tip side of the insertion hole 4a, and an insertion into the insertion hole 4a. Holding member 4 for holding round plug 3
d.

The round plug 3 is fitted into and held in the insertion hole 4a of the round jack 4, so that the optical semiconductor element 4c and the optical fiber are coupled, and the optical signal is transmitted. .

FIG. 16 shows a third conventional plug / jack type transmission apparatus. This plug-jack type transmission device transmits an electric signal, and includes a small single-headed electric plug 5 and a jack 6 into which the electric plug 5 is inserted. When the electric plug 5 is inserted into and held in the jack 6, a plurality of electric systems are connected.

FIG. 17 shows a fourth conventional example of a plug / jack type transmission apparatus. This plug-jack type transmission device is a photoelectric device that transmits an optical signal and an electric signal, and is described in Japanese Utility Model Application Laid-Open No. 62-193208.

This plug-jack type transmission device has a male connecting member 7 (plug) having a connecting protrusion and a female connecting member 8 into which the connecting protrusion of the male connecting member 7 (plug) is inserted.
(Jack). As the connection cable, a composite cord composed of an optical fiber and a plurality of electric signal transmission lines is used. A male connection member (plug) 7 is attached to the distal end of the composite cord, a plurality of electrical connection terminals 7a are provided on the connection protrusion, and an optical fiber 7b penetrates inside. On the other hand, in the female connection member 8, the electrical connection terminals 7a
And an optical semiconductor element 8b optically coupled to the optical fiber 7b are arranged on the substrate.

By inserting the connecting projection of the male connecting member (plug) 7 into the female connecting member 8, both or one of an optical signal and an electric signal can be transmitted.

FIGS. 18 and 19 show a conventional example 5 of a plug / jack type transmission apparatus. This plug-jack type transmission device is a photoelectric / type that transmits an optical signal and an electric signal, and is described in JP-A-6-140106.

This plug-jack type transmission device is a jack in which a small single-headed electrical plug for transmitting an electrical signal and an optical plug similar in shape to the electrical plug are selectively inserted. 9 is provided. Jack 9
A body 9b having an insertion hole 9a into which a plug is inserted,
In order to transmit and receive light to and from the optical plug inserted into the insertion hole 9a, the optical semiconductor element 9c provided in the body 9b at the distal end of the insertion hole 9a and the optical semiconductor element 9c inserted into the insertion hole 9a. Body 9b for exchanging electricity with an electric plug
And a plurality of electric connection terminals 9d, 9d,. The electric connection terminals 9d, 9d...
And a part thereof projects into the insertion hole 9a so as to contact the electric plug, and another part projects outside the body 9b as a terminal part.

Then, the optical plug is connected to the body 9 of the jack 9.
b, the optical fiber is optically coupled to the optical semiconductor element 9c in the body 9b, and optical transmission is performed. By inserting the electric plug into the body 9b of the jack 9, the electric plug is
., 9d... and a plurality of electrical systems are connected.

[0014]

However, the plug-jack type transmission devices of the prior art examples 1 to 5 have the following problems, particularly in relation to the structure of the jack.

In the plug / jack type transmission apparatus of the prior art 1, the square jack 2 cannot be connected to any other than the square plug 1 attached to the tip of the optical fiber.
Further, since there is no electric connection terminal, transmission other than optical transmission, that is, transmission of electric signals cannot be performed. Therefore, when used as input / output terminals of digital audio equipment, two systems are required for transmitting optical signals and transmitting analog electric signals. For this reason, a large space is required when the device is incorporated in an audio device or the like, which limits downsizing of the device. Further, for a device having a limited space, it is necessary to select a transmission signal form, which may lack versatility.

In the plug / jack type transmission apparatus of the second conventional example, since the jack 4 has no electric connection terminal, transmission other than optical transmission, that is, transmission of an electric signal cannot be performed. Therefore, there is a problem similar to that of the plug-jack type transmission apparatus of the first conventional example.

In the plug-jack type transmission apparatus of the prior art 3, since the jack 6 can be connected only to the small single-headed electrical plug 5, optical signals cannot be transmitted.
For this reason, there is a problem similar to the plug-jack type transmission devices of the first and second conventional examples.

On the other hand, in the plug-jack type transmission apparatus of the conventional example 4, the female connection member 8 as the plug is used.
Can transmit optical signals and / or electrical signals. For this reason, for example, it is possible to use one input / output terminal for the digital audio equipment.

However, since it is combined with the dedicated male connecting member 7, a small single-headed electrical plug cannot be used, and connection to general audio equipment is impossible. Furthermore, since the function of processing each transmission signal is mixed in the apparatus, a separate switch is required unless the form of the transmission signal to be used can be recognized. As a result, the number of components is increased, and a space for mounting the components is required, and the number of assembly steps is increased, thereby increasing costs.

The plug-jack type transmission device of the conventional example 5 was developed to solve the problems of the plug-jack type transmission devices of the conventional examples 1-4, and the jack 9 of the transmission device is provided with an optical signal and an electric signal. It can perform common transmission of signals and can use a single input / output terminal for digital audio equipment. In addition, a small single-headed electrical plug can be used as an electrical plug. Connection with audio equipment is also possible.

However, the body 9 of the jack 9
In b, the thickness of the molding resin is sufficiently ensured to prevent deformation when the plug is inserted or when the inserted plug is twisted. Therefore, FIG.
8 has a limitation that the height indicated by H3 cannot be reduced sufficiently.

In the field of portable digital audio equipment, for example, portable MDs have been in the market for several years since their product release.
Competition for miniaturization, including low-profile, low-voltage, low-cost, etc. is intensifying. In consideration of such a market, in the plug / jack type transmission apparatus of the conventional example 5, how to reduce the height H3 of the body 9b of the jack 9 and realize a price reduction is a major technical problem.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a plug-jack type photoelectric shared transmission device capable of lowering the height of a jack body than before.

[0024]

SUMMARY OF THE INVENTION The plug-jack type photoelectric sharing transmission device of the present invention has an electrical plug for selectively inserting an electrical plug for electrical transmission and an optical plug for optical transmission into a common jack. In a plug / jack type photoelectric shared transmission device having both a transmission function and an optical transmission function, the body of the jack into which the electric plug and the optical plug are selectively inserted is reduced in thickness around the plug insertion hole. In order to absorb the upward bulging deformation of the body due to the insertion of the plug into the plug insertion hole, an opening for deformation absorption is provided on the upper surface of the body. Provided, thereby achieving the above objectives.

Preferably, a closing member for closing the opening is provided so as to surround the body of the jack.

Preferably, the closing member is formed of a metal plate molded so as to be fitted into the body from above, and both ends of the metal plate are connected to a board on which the body is mounted. And a terminal-type metal cover serving as a fixed terminal portion.

Preferably, the metal cover is mounted at a position offset from the center of the body in the plug insertion direction toward the plug insertion port.
The metal cover is connected to a line independent of a signal line of a circuit formed on the substrate.

Preferably, the line independent of the signal line is a ground line.

The operation of the present invention will be described below with reference to FIGS. 1 to 4 showing an embodiment of the present invention. FIG. 4 shows a state where the metal cover is removed from the body.

In FIG. 1 to FIG. 4, the jack is made of a resin body 10 having a plug insertion hole 11 into which a plug is inserted, and an optical plug inserted into the body 10. An optical semiconductor element (20) provided in the body (10) at the tip end of the plug insertion hole;
A plurality of electrical connection terminals 30 </ b> A to 30 </ b> E are provided in the body 10 so as to directly or indirectly contact the electrical plug inserted into the body 10 from both sides.

In the body 10, the thickness of the molding resin is reduced in order to reduce the width and height, and in order to absorb upward bulging deformation at the time of plug insertion due to the thinning. The upper surface is provided with an opening 12c made of, for example, a square hole for absorbing deformation. Opening 12c
Is provided at a position deviated from the center of the body 10 in the plug insertion direction toward the insertion side, and is closed by the metal cover 40 attached to the square tube portion 12b.

The metal cover 40 is soldered to a ground line of the board on which the body 10 is mounted.

When the thickness of the body 10 is reduced in order to reduce the height thereof, when a plug is inserted into the plug insertion hole 11, the upper surface of the body 10 is reduced due to a reaction force caused by deformation of the electric connection terminals 30 A to 30 E. Bulges upward, and the side portions try to bulge to both sides. When these deformations occur,
Even when the thickness of the body 10 is reduced and its height is reduced, the actual height in use becomes larger than the designed value.

However, when an opening 12c for absorbing deformation is provided in the upper surface of the body 10, the upper surface is easily deformed to both sides in the lateral direction, and the swelling deformation accompanying the insertion of the plug is mainly caused by the deformation. Occurs on the lateral sides on both sides in the lateral direction. As a result, the upward bulging deformation of the upper surface portion is suppressed even though the thickness of the body 10 is reduced. Therefore, the original design value is maintained as the height of the body 10, and an effective thickness reduction is realized.

If an opening 12c for absorbing deformation is provided on the upper surface of the body 10, external light may enter the plug insertion hole 11 through the opening 12c, causing disturbance to the optical semiconductor element 20. However, since the opening 12c is covered and closed by the metal cover 40, adverse effects due to the disturbance light are avoided.

The metal cover 40 fixes the body 10 by being soldered to a ground line on the board. However, the metal cover 40 is mounted at a position offset from the center of the body 10 in the plug insertion direction toward the insertion side. Therefore, the strength against twisting of the plug is effectively improved.

Further, by connecting the fixed terminal portion 41 of the metal cover 40 to the ground line, the metal cover 40 functions as a shield member for electromagnetic waves and the like. Therefore, adverse effects due to electromagnetic waves and the like passing through the opening 12c are also avoided.

Further, since the ground line to which the fixed terminal portion 41 of the metal cover 40 is connected is independent of the signal line, even if the tip of the plug comes into contact, there is no adverse electrical effect.

[0039]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the drawings.

FIG. 1 to FIG. 10 show an embodiment of the plug / jack type shared optical transmission apparatus of the present invention. The plug-jack type common use photoelectric transmission device of the present embodiment includes a common use type jack in which an electric plug and an optical plug are selectively coupled. The plug to be connected to the jack will be described later in detail, but a small single-headed electrical plug is used as the electrical plug, and a plug similar in shape to the small single-headed electrical plug is used as the optical plug. You.

As shown in FIGS. 1 to 4, the jack has a resin body 10 having a plug insertion hole into which a plug is inserted, and is optically coupled to an optical plug inserted into the body 10. An optical semiconductor element 20 provided in the body 10 at the tip end side of the plug insertion hole;
A plurality of electrical connection terminals 30 </ b> A to 30 </ b> E are provided in the body 10 so as to directly or indirectly contact the electrical plug inserted into the body 10 from both sides.

In the following description, the side into which the plug is inserted is referred to as the insertion side, and the opposite side is referred to as the element side based on the position where the optical semiconductor element 20 is provided.

The body 10 is inserted into the body 10 from the element side in order to hold the main body 12 having the plug insertion hole 11 formed therethrough and the electrical connection terminals 30C to 30E in the main body 12. Plug-in terminal holding member 13
And an element holding member 14 attached to an end of the terminal holding member 13 on the element side to hold the optical semiconductor element 20 on the element side of the main body 12.

The body 12 of the body 10 has a cylindrical mouth portion 12a at the insertion end, and the other portion has a flat rectangular tube shape. In the square tube portion 12b of the main body 12, the thickness of the molding resin is reduced in order to reduce the width and height, and to absorb upward bulging deformation at the time of plug insertion due to the thinning. In addition, an opening 12c for deformation absorption is provided on the upper surface. The opening 12c formed of a rectangular through hole is provided at a position deviated from the center of the body 10 in the plug insertion direction toward the insertion side, and is closed by the metal cover 40 attached to the square tube 12b.

The metal cover 40 is formed by bending a band-shaped metal plate downward at two places, and is fitted into the rectangular tube portion 12b from above to surround the upper surface portion and both side surface portions of the rectangular tube portion 12b. The lower end portions on both sides of the metal cover 40 are fixed terminal portions 41 projecting below the rectangular tube portion 12b and fixed to the substrate. In order to fix the metal cover 40 to the rectangular tube portion 12b, a pair of protrusions 12d, 12
d is provided. Further, in order to absorb the thickness of the metal cover 40 and to avoid an increase in the width and height,
A shallow concave portion 12e into which the metal cover 40 is fitted is provided in the upper surface portion and both side surface portions of 2b.

The terminal holding member 13 of the body 10 is inserted into the main body 12 from the element side, leaving its element side end portion.
Fixed. The element holding member 14 of the body 10 is externally fitted to the element side end of the terminal holding member 13 from the element side, and is fixed by protrusions 13a provided on both side surfaces of the element side end.

The optical semiconductor element 20 is formed by forming an optical semiconductor chip 21 such as an LED or a phototransistor into a transparent resin body 22.
This is a general structure sealed inside, and has a structure in which a terminal portion 23 is projected below the resin body 22 in order to electrically connect the optical semiconductor chip 21 to an external circuit. The optical semiconductor element 20 is housed in the element-side end of the terminal holding member 13 protruding toward the insertion side of the main body 12 and held in the element-side end by the element holding member 14 attached to the element-side end. I have.

Of the plurality of electric connection terminals 30A to 30E, the electric connection terminal 30A is inserted from above into the rectangular tube portion 11b of the main body 12 of the body 10, and a part of the electric connection terminal 30A is inserted into the plug insertion hole 11 in the body 10. Another part protrudes below the rectangular tube part 11b as a terminal part for connecting to an external circuit. The electrical connection terminal 30B is also inserted from above into the rectangular tube portion 11b of the main body 12 of the body 10, a part thereof faces the plug insertion hole 11 in the body 10, and another part is connected to an external circuit. Square part 11 as a terminal part for
b.

On the other hand, the electric connection terminals 30C to 30E are inserted from the element side into the square tube portion 11b of the main body 12, and are held in the square tube portion 11b by the terminal holding members 13 also inserted into the square tube portion 11b. Have been. Some of these electrical connection terminals also face the plug insertion holes 11 in the body 10 from the side, and other portions protrude below the rectangular tube portion 11b as terminal portions for connection to an external circuit.

The electric plug connected to the jack is
As shown in FIG. 6, a small single-headed electrical plug 50 which is generally distributed. The electric plug 50 has a conductive single head 51 at the tip. A constricted portion is formed on the base side of the single head 51, a conductive portion 53 is provided on the base side of the constricted portion via an insulating portion 52, and a conductive portion 53 is provided on the base side of the conductive portion 53 via an insulating portion 54. Conductive portions 55 are respectively formed.

When the electric plug 50 is inserted into the plug insertion hole 11 formed in the body 10 of the jack, the single head 51 of the electric plug 50
2 contacts the electrical connection terminal 30E provided in the inside. The conductive part 53 contacts the electric connection terminal 30D. The conductive portion 55 contacts the electric connection terminals 30B and 30C, and
0C contacts the electrical connection terminal 30A.

On the other hand, as shown in FIG. 5, the optical plug is a small single-headed plug 6 having substantially the same outer shape as the electric plug 50.
0. The optical plug 60, through which the optical fiber penetrates the central portion, is an insulating portion 62 in which a portion from the constricted portion to the base is covered with resin.
0 and different in appearance.

When the optical plug 60 is inserted into the plug insertion hole 11 formed in the body 10 of the jack,
The single head 61 of the optical plug 50 faces the optical semiconductor element 20 in the body 10 with a predetermined gap.

Here, the length L 1 of the plug insertion hole 11, that is, the distance from the end on the insertion side of the body 10 to the mounting position of the optical semiconductor element 20 in the body 10 is determined when the optical plug 60 is inserted. L1 = L2 + α (mm) L2 in the equation is the length of the portion of the optical plug 60 to be inserted into the plug insertion hole 11, for example, L2 = 14.6 +
It is given by β (mm). Here, α ≒ 0.2 mm, 0
It is desirable that mm <β <2 mm.

The plug insertion hole 11 of the electric plug 50
Is, for example, L3 = 14.0.
It is given by mm ± γ (mm). Here, γ ≒ 0.6m
m.

The relationship here satisfies L1>L2> L3. By setting L1, L2, and L3 in this manner, the electric plug 50 and the optical plug 60 are prevented from contacting and damaging the optical semiconductor element 20. Element 2
By approaching 0, optical coupling between the two can be ensured, and the optical characteristics can be improved.

The electric plug 50 and the optical plug 60
The plug insertion hole 1 in the body 10 as shown in FIG.
There is a case where it is pushed in with leaning to 1. Here, the electric connection terminal 30 </ b> C extends long along the plug insertion hole 11 from the element side end of the main body 12, bends inward in the middle, and the tip protrusion 31 that contacts the plug is connected to the plug insertion hole 11.
Is located at the insertion side end of the. Therefore, the electric plug 5
The optical plug 60 and the optical plug 60 are inserted while being in contact with the distal end protruding portion 31 of the electrical connection terminal 30C, and as shown by a broken line in FIG. Then, depending on the inclination angle of the plug, the tip projection 31 of the electrical connection terminal 30C may bend from the point X of the base as a starting point, causing a problem in electrical characteristics and appearance.

Therefore, as shown by the solid line in FIG. 8, the tip projection 31 is inclined toward the element side (toward the base of the electrical connection terminal 30C), and extends from the bent portion of the electrical connection terminal 30C to the center of the tip projection 31. The distance is shortened to L4. Thereby, even when the maximum inclination angle at the time of plug insertion is 16 degrees, deformation of the electrical connection terminal 30C due to collision with the plug is prevented.

Next, a description will be given of a method of using and functions of the plug / jack type photoelectric sharing transmission apparatus of the present embodiment.

In the plug / jack type photoelectric sharing transmission apparatus of this embodiment, the jack is mounted on a board and used. At this time, the fixed terminal portion 41 of the metal cover 40
Are soldered to the ground line of the board.

Here, the body 10 of the jack has a structure in which the thickness of the rectangular tube portion 12b of the main body 12 surrounding the plug insertion hole 11 is reduced in order to reduce the height. When the thickness of the rectangular tube portion 12b is reduced, when a plug is inserted into the plug insertion hole 11 inside the upper portion, the upper surface portion swells and deforms upward due to a reaction force accompanying deformation of the electrical connection terminals 30A to 30E. However, both side portions tend to bulge and deform on both sides. When these deformations occur, the actual height in use becomes larger than the design value even if the thickness of the rectangular tube portion 12b is reduced and its height is reduced.

However, in the plug / jack type photoelectric sharing transmission device of the present embodiment, the opening 12c for deformation absorption is provided in the upper surface of the rectangular tube portion 12b, so that the upper surface can be easily deformed to both sides. ing. For this reason, the swelling deformation accompanying the insertion of the plug mainly occurs on the side portions on both sides, and as a result, despite the thinning of the rectangular tube portion 12b, the swelling deformation upwards on the upper surface portion. Is suppressed. Therefore, the original design value is maintained as the height of the body 10, and an effective thickness reduction is realized.

By the way, in the plug / jack type photoelectric sharing transmission device of the conventional example 5, the height H3 of the body is 6.3 mm.
However, the height H1 of the body 10 of the plug-jack type photoelectric shared transmission device of the present embodiment is 4.2.
mm and the height H including the metal cover 40
Even with 2, it is possible to achieve about 4.4 mm.

When an opening 12c for absorbing deformation is provided on the upper surface of the square tube portion 12b, external light enters the plug insertion hole 11 through the opening 12c, and becomes a disturbance to the optical semiconductor element 20. Although there is a concern, since the opening 12c is covered and closed by the metal cover 40, adverse effects due to the disturbance light can be avoided.

The metal cover 40 fixes the body 10 by soldering the fixed terminal portion 41 to a ground line on the board. The metal cover 40 is biased toward the insertion side from the center of the body 10 in the plug insertion direction. Since the plug is mounted at the position, the strength against prying of the plug is improved.

When the fixed terminal portion 41 of the metal cover 40 is connected to the ground line, the metal cover 40 functions as a shield member for electromagnetic waves and the like. Therefore, adverse effects due to electromagnetic waves and the like passing through the opening 12c are also avoided.

Further, since the ground line to which the fixed terminal portion 41 of the metal cover 40 is connected is independent of the signal line, even if the tip of the plug comes into contact, there is no adverse electrical effect.

On the other hand, the electric connection terminals 30A to 30C are connected to an external circuit on the board as shown in FIG. That is, the electric connection terminals 30A and 30B are connected to the constant voltage power supply via the resistors R2 and R1, respectively, and the electric connection terminal 30C is connected to the ground line.

According to such a connection, depending on the type of plug inserted into the plug insertion hole 11 in the body 10,
The outputs V1 and V2 of the electrical connection terminals 30A and 30B are shown in FIG.
It changes like 0. That is, when neither the electric plug 50 nor the optical plug 60 is inserted into the plug insertion hole 11, the outputs V1 and V2 of the electric connection terminals 30A and 30B both become "H" (= high level). When the electric plug 50 is inserted into the plug insertion hole 11, conduction between the electric connection terminals 30B and 30C is conducted through the conductive portion 55, and the electric connection terminal 30C contacts the electric connection terminal 30A. Therefore, the outputs V1 and V2 of the electric connection terminals 30A and 30B both become "L" (= low level). When the optical plug 60 is inserted into the plug insertion hole 11, the insulating portion 6
2 is interposed between the electrical connection terminals 30B and 30C, and only the electrical connection terminal 30A electrically contacts the electrical connection terminal 30C. Therefore, the output V of the electric connection terminals 30A and 30B is
1 and V2 become "L" and "H".

As described above, according to the above-described terminal structure and connection, the type of the plug to be inserted into the plug insertion hole 11 is identified from the state of the outputs V1 and V2 of the electric connection terminals 30A and 30B.

In the plug-jack type photoelectric sharing transmission device of the conventional example 5, since the electric connection terminal is inserted into the body from the bottom side and fixed by the back cover, the plug inserted into the body is pryed. In some cases, some of the electrical connection terminals are opened, and transmission of electrical signals becomes unstable. Since the optical semiconductor element is also inserted into the body from the bottom side and fixed by bonding, an assembling process is required, which limits the cost reduction.

However, in the plug-and-jack type photoelectric sharing transmission device of this embodiment, the main body 12 of the body 10 is cylindrical, and the main electric connection terminals are inserted into the body 10 from the element side. Since it is fixed by the terminal holding member 13 inserted into the body 10 from the element side, even if the plug inserted into the body 10 is pryed, there is little danger that the electrical connection terminal will be in an open state. Therefore, transmission of the electric signal is stabilized. The optical semiconductor element is also inserted into the end of the terminal holding member 13 from the element side and is fixed to the end by the element holding member 14 mounted from the element side, so that the assembly process is not required and the cost can be reduced. become.

[0073]

As described above, the plug-jack type photoelectric sharing transmission device of the present invention has not only a thin structure in which the body thickness is reduced and the overall height is reduced, but also the deformation absorption on the thin upper surface portion. In this configuration, an upward swelling deformation due to the insertion of the plug can be suppressed, and an effective thickness reduction can be achieved.

The plug-jack type photoelectric sharing transmission device according to the second aspect of the present invention further includes a closing member that surrounds the body of the jack and closes an opening for absorbing deformation. An adverse effect on the element can be avoided.

In the plug / jack type photoelectric sharing transmission device according to the third aspect, the closing member is formed of a metal plate formed so as to be fitted into the body from above, and both ends of the metal plate. Since the portion uses a terminal-type metal cover that is a fixed terminal portion to the board on which the die is mounted, the body can be firmly fixed on the board.

In addition, the plug / jack type photoelectric sharing transmission device according to the fourth aspect of the present invention has a structure in which the metal cover is mounted at a position offset from the center of the body in the plug insertion direction toward the plug insertion port. The strength against prying of the plug can be improved.

In the plug-jack type photoelectric sharing transmission device according to the fifth aspect, the metal cover is connected to a line independent of the signal line of the circuit formed on the substrate. This can avoid an adverse electrical effect when the metal contacts the metal cover.

In the plug-jack type photoelectric sharing transmission device according to the sixth aspect, since the line to which the metal cover is connected is a ground line, the metal cover functions as a shield member for electromagnetic waves and the like. It is possible to avoid adverse effects due to electromagnetic waves or the like passing through the section.

[Brief description of the drawings]

FIG. 1 is a plan view of a jack used in an embodiment of a plug / jack type photoelectric sharing transmission device of the present invention.

FIG. 2 is a side view of a jack used in the embodiment of the plug / jack type photoelectric sharing transmission device of the present invention.

FIG. 3 shows the internal structure of a jack used in the embodiment of the present invention.
A-A line sectional view of FIG.

FIG. 4 is a plan view showing a state in which a metal cover of a jack used in the embodiment of the plug / jack type photoelectric sharing transmission device of the present invention is removed.

FIG. 5 is a side view of an optical plug used in the embodiment of the present invention.

FIG. 6 is a side view of an electric plug used in the embodiment of the plug-jack type photoelectric sharing transmission device of the present invention.

FIG. 7 is a cross-sectional view of a jack showing a plug insertion state in the embodiment of the plug / jack type photoelectric sharing transmission apparatus of the present invention.

FIG. 8 is a plan view of an electrical connection terminal of a jack used in the embodiment of the present invention.

FIG. 9 is a schematic circuit diagram showing a circuit configuration in an embodiment of the plug / jack type photoelectric sharing transmission apparatus of the present invention.

FIG. 10 is a diagram showing a relationship between plug types and terminal outputs in the embodiment of the plug-jack type photoelectric shared transmission device of the present invention.

FIG. 11 is a perspective view of a plug-and-jack type transmission apparatus of a first conventional example.

FIG. 12 is a vertical side view of a jack used in a plug / jack type transmission apparatus of Conventional Example 1.

FIG. 13 is a side view of a plug used in the plug-jack type transmission device of the first conventional example.

FIG. 14 is a vertical sectional side view of a jack used in a plug / jack type transmission apparatus of Conventional Example 2.

FIG. 15 is a side view of a plug used in the plug / jack type transmission apparatus of the second conventional example.

FIG. 16 is a perspective view of a plug-and-jack type transmission device of a third conventional example.

FIG. 17 is a vertical sectional side view of a plug / jack type transmission apparatus of Conventional Example 4.

FIG. 18 is a side view of a jack used in a plug / jack type transmission apparatus of a conventional example 5.

FIG. 19 is a vertical side view of a jack used in a plug / jack type transmission apparatus of a fifth conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Body 11 Plug insertion hole 12 Main body 12c Opening for deformation absorption 13 Terminal holding member 14 Element holding member 20 Optical semiconductor element 30A-30E Electrical connection terminal 40 Metal cover 50 Electrical plug 60 Optical plug

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI H01L 33/00 H01L 31/02 C

Claims (6)

[Claims] 1. A plug-jack type photoelectric shared transmission having both an electric transmission function and an optical transmission function by selectively inserting an electric plug for electric transmission and an optical plug for optical transmission into a common jack. In the apparatus, the body of the jack into which the electric plug and the optical plug are selectively inserted is thin and thin around the plug insertion hole to reduce the overall height. And a plug / jack type shared optical / electrical transmission device having a deformation absorbing opening formed in the upper surface of the body to absorb upward bulging deformation of the body accompanying insertion of the plug. 2. The plug / jack type common use optical and electric transmission apparatus according to claim 1, wherein a closing member for closing said opening is provided so as to surround said body of said jack. 3. The closing member is made of a metal plate formed so as to be fitted into the body from above, and both ends of the metal plate are fixed terminals to a board on which the body is mounted. 3. The plug-jack type photoelectric sharing transmission device according to claim 2, wherein the transmission device is a terminal-type metal cover serving as a unit. 4. The plug / jack type shared optical / electrical transmission device according to claim 3, wherein said metal cover is mounted at a position deviated toward a plug insertion port side from a center portion of said body in a plug insertion direction. 5. The plug-jack type shared optical transmission device according to claim 3, wherein said metal cover is connected to a line independent of a signal line of a circuit formed on said substrate. 6. The signal line independent of the signal line,
The plug-jack type common use optical / electrical transmission device according to claim 5, which is a ground line.