KR910003903Y1 - Optical connector - Google Patents

Abstract

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Description

Connection device

1 is a side view of a connecting device in the prior art.

2 is a side view of a connecting device in another prior art.

3 is a side view schematically showing the structure of a connecting device of the present invention.

4a, 4b and 4c show male portions of the connecting device according to another embodiment of the present invention, wherein 4a is a front view, 4b is a side view, and 4c is a CC line of FIG. 4b. According to the cross section.

5a and 5b show a female part of the connecting device of FIGS. 4a, b and c, wherein FIG. 5a is a front view thereof, and FIG. 5b is a side view thereof.

6A and 6B are side cross-sectional views of the plugs showing the anterior ends thereof.

7 is a cross-sectional view of the plug.

* Explanation of symbols for main parts of the drawings

13: insulation piece 14, 56: shielding conductor

15, 57: L-channel conductor 16, 60: R-channel conductor

17: protrusions 18, 31, 43: plug

19, 30, 44: Jack 20, 45: opening

32, 74: center conductor 33, 36, 80: outer cover

34, 38, 72, 81: insulator 35, 79: center pin

52: second conductor 53: third conductor

54, 82: optical fiber 55: front terminal

58, 75: optical element 59: lead wire

61, 76: circuit elements 62, 77: support plate

71: pin jack 73: conductive outer cover

73a: rounded edge portion 78: pin plug

80a: most tapered edge 83: center hole

84: guideper 85: projecting mall for contact

86: semi-circular part

The present invention relates to a connection device used between an acoustic device such as a headphone and a sound reproducing device, and more particularly, to a connection device capable of transmitting an optical signal through an optical fiber.

Prior art connections used in sound systems are designed to exchange relatively small amounts of signals.

In order to exchange a large number of signals, a large number of connection devices must be used, which leads to complicated wiring between the devices.

1 shows an example of a prior art connecting device having a plug 18 and a jack 19.

The plug 18 has a sloping forward protruding piece 17 which divides the three conductor parts along the longitudinal direction and the conductors are separated from each other by the insulating pieces 13 to be connected via several electrical devices. .

The jack 19 is composed of a shielding conductor 14, an L-channel conductor 15, an R-channel conductor 16, and the like.

When the protruding piece 17 of the plug 18 is inserted into the jack 19 through the opening 20, the acoustic devices provided with the plug 18 and the jack 19, respectively, are connected, that is, the first and the second. And third conductors are connected when in contact with the shielding conductor 14, the L-channel conductor 15 and the R-channel conductor 16, respectively.

2 shows an example of a prior art connecting device having an RCA-type pin jack 30 and a pin plug 31.

The pin jack 30 has a central conductor 32 and a grounded outer cover 33, and an insulator 34 is positioned between them to insulate them.

Similarly, the pin plug 31 includes a central pin 35 protruding forward and a grounded outer cover 36, and an insulator 37 is disposed therebetween to electrically insulate the pin plug 31 from each other. By inserting into the pin jack 30, a connection can be established, whereby the center conductor 32 of the jack 30 can be elastically pressed against the center pin 35 and the outer covers 33 and 36 are mutually Can be pressurized.

However, as a connection device of such a structure, only a signal of one electrical device can be transmitted.

Therefore, it is an object of the present invention to provide a connection device capable of transmitting a large number of information in a simple structure.

In addition, another object of the present invention is to provide a device that can effectively transmit a large number of information and act as a connection device for the optical signal and the electrical signal quantum.

The above and other objects of the present invention are achieved by providing a connection device that can be used for one or more electrical systems, which is composed of a male part and a corresponding female part, and the male part is a front terminal thereof. A portion of the optical fiber is exposed at the portion, and the female portion includes an optical element on the optical axis of the optical signal transmitted or received through the exposed portion of the optical fiber so that the optical signal can be further communicated through the connection device.

When describing the embodiments of the present invention based on the accompanying drawings included in this specification, which forms a part of the present specification, the present specification will serve to explain the principles of the present invention.

3 is a connecting device according to one embodiment of the present invention and includes a plug 43 and a jack 44.

The plug 43 has a protruding piece 42 formed on its front surface, and the first conductor 5, the second conductor 52, and the third conductor 53 are insulated from each other by an insulator, so that the two electrical The devices are intended to be interconnected.

In the plug 43, the optical fibers 54 are disposed longitudinally through the inside of the protruding pin 42 along the central side thereof, and the front terminal 55 of the optical fiber is exposed at the front terminal of the protruding pin 42. It is.

The jack 44 has an opening 45 through which an elongated protruding piece 42 of the pulllog 43 is inserted and fitted snugly therein, and the shielding conductor 56 of the plug 43 The first conductor 51 is in contact, the L-channel duct 57 is in contact with 52 in FIG. 2, and the R-channel conductor 60 is in contact with the third conductor 53. It is supposed to be done.

In addition, a support plate 62 is provided in the interior of the jack 44, in which the plug 43 is fully inserted into the jack 44 through the opening 45, and thus the front terminal 55 of the optical fiber 54. An optical element 58 is attached at the opposite position of the optical element 58, that is, on the light side of the optical signal transmitted through the front terminal 55 of the optical fiber 54.

The circuit element 61 is connected to the optical element 58 and is disposed close to the optical element.

The optical element 58 may be a light receiving element when the jack 44 is attached to the signal receiving device, and the optical element may be a light emitting element such as an LED when the jack 44 is on the side of the optical transmission device.

The circuit element 61, in which the optical element 58 is a light-receiving element, includes an amplifier and a comparator, and a driver IC in the case where the optical element 58 is a light emitting element.

Reference numeral 59 denotes a lead wire of the input and output of the electric signal.

If two acoustic devices (called the first device and the second device) are connected by a connecting device of the type described above, the plug 43 is connected to the first device via a cable or the like and the jack 44 is connected to the second device. Attached.

What is accommodated in the cable is a shield wire connected to the first conductor 51 of the plug 43, a signal line connected to the second conductor 52, another signal line connected to the third conductor 53, an optical fiber 14, and the like. .

When the elongated protruding piece 42 of the plug 43 is inserted into the jack 44 through the opening 45, the first conductor 51 of the plug 43 contacts the shielding conductor 56 of the jack 44. The second conductor 52 comes into contact with the L-channel conductor 57 and the third conductor 53 comes into contact with the R-channel conductor 60, thereby establishing an electrical connection between the two acoustic devices. do.

When the jack 44 is on the side of the mine lake storage, the optical element 58 becomes a light receiving element and is transmitted from the front terminal 56 passing through the optical fiber 54 of the plug 43 and received by the light receiving element. .

This optical signal is converted into an electrical signal, amplified by an amplifier in the circuit 61, converted into a logic level signal by the comparator IC, and then enters the second sound device through the lead wire 59.

When the optical signal is transmitted from the jack 44, the optical element 58 is a light emitting element and the electrical signal transmitted from the second acoustic device is received by the driver IC in the circuit 61 via the lead wire 59. .

The driver IC operates a light emitting element based on the stored electrical signal to transmit an optical signal from the light emitting element.

The optical signal thus transmitted is carried by the optical fiber 54 of the plug 43 through the front terminal 55 and input to the first acoustic device through the optical fiber 54 and processed therein.

Since the outer layer of the jack 44 is a conductor acting as a shield plate, the stability of the IC with the high performance amplifier is improved.

In addition, the above-described connection device of the present invention can simultaneously connect the sound devices by an electric signal and an optical signal.

This simplifies the connection of devices and eliminates the noise generated when grounding many electrical signals.

4A, 4B and 4C and 5A and 5B show another embodiment of the connection device of the present invention.

It has a pin jack 71 and a pin plug 78.

Referring to FIGS. 4A, 4B and 4C, the pin jack 71 serving as the female part of the connecting device has an insulator 72, which not only constitutes the main body but also electrically insulates other components. And the pin jack has a conductive outer cover 73 around the jack 71 in front of the insulator 72, a central conductor 74 and a support plate (inside the insulator 72). 77) and the support plate is located at the rear end of the insulator 72, and the optical element 75 and the circuit element 76 are attached to the support plate.

Next, referring to FIGS. 5A and 5B, the pinclug 78 serving as a male of the connecting device includes a central pin 79 conductive sub-cover 80, an insulator 81, a mineral oil 82, and the like. The central pin (79) serves as a contact pin and is located at the center, and the insulator (81) is located between the central pin (79) and the outer cover (80) to insulate them from each other and the optical fiber The terminal of 82 is located in the center pin 79.

The pin plug 78 is inserted into and coupled with the pin jack 71 to establish a connection state for transmitting a signal.

The optical element 75 is attached to the middle plate of the support plate 77 of the pin jack 71 so as to be located opposite to the terminal surface of the optical fiber 82, and the pin plug 78 is inserted into the pin jack 71 to be coupled. In this case, the optical center side of the terminal surface of the optical fiber 82 passes through the optical center or the light emitting central portion of the optical element 75.

When the connection device having the structure as described above is used for the optical signal transmission device, a light emitting element such as an LED for converting an electrical signal into an optical signal is used as the optical element 75 and a circuit element located close to the optical element ( 76 is provided with a driver IC to operate the light emitting element.

On the other hand, when the connection device is used in the optical signal storage device, an optical storage element such as an optical transistor for converting the optical signal into an electrical signal is used as the optical element 75, and the circuit element 76 uses an amplifier-comparator (IC). To amplify the electrical signal and to generate a logic level signal.

Figure 4b also shows a longitudinal central hole 83 shaped like a tunnel, which is formed in the insulator 72 halfway backward from the front terminal (where the outer cover 73 is located). The hole 83 has a shape and specification such that the central pin 79 of the pin plug 78 can be firmly coupled therein.

The center conductor 74 of the jack 71, which is in contact with the center pin 79, has guide pieces 84, which are formed in an angled U-shape at the remaining terminal.

Since the contact protrusion 85 facing the center portion is formed on the inner surface of the guide piece 84, when the center pin 79 penetrates through the hole 83, the center pin 79 moves the protrusions outward. It is elastically pressurized and thus establishes a firm contact between the central pin 79 of the plug 78 and the central conductor 74 of the jack 71.

In addition, the central conductor 74 forms a semicircular portion 86 so as not to cause interference with optical signals transmitted between the optical element 75 in the center of the support plate 77 and the terminal surface of the optical fiber 82. .

The outer cover 73 of the jack 71 is slightly larger than the outer cover 80 of the plug 78 and also has a rounded edge portion 73a.

Since the outer cover 80 of the plug 78 also has a tapered edge portion 80a, the plug 78 is smoothly inserted into the jack 71 while the outer cover 80 of the plug 78 is Because of the elastic outward deformation, a firm connection is made between the plug and the jack.

The terminal surface of the optical fiber 82 is located on the same plane as the front terminal surface of the central pin 79.

In addition, the center pin 79 is designed as follows.

That is, the front terminal cannot touch or damage the optical element 75 or the circuit element 76, which is designed to be the same even when fully inserted into the center hole 83 through the jack 71.

When the connection device having the structure as described above is used in the following light emitting device, that is, the light emitting device such as LED is used as the optical element, and the driver IC is used as the circuit element on the support plate 77 and the plug 78 When the connecting device is used for such a device in which the jack is inserted into the jack 71, a firm connection is made between the center conductor 74 of the jack 71 and the center pin 79 of the plug 78 and two grounded A firm connection is also made between the outer covers 73 and 80.

In addition, the terminal surface of the optical fiber 82 is located at a slight distance from the LED activated by the driver (IC) and the signal can be transmitted to another electronic device through the optical fiber 82.

Similarly, when the connection device is used in the following optical storage device, that is, an optical transistor such as an optical element 75 is disposed, an amplifier-comparator (IC) is used as the circuit element 76, and the plug 78 is used. When used in such a device inserted in the jack 71, optical signals, such as the optical fiber 82, are converted by an optical transistor into electrical signals and processed by an amplifier-comparator and then output.

As mentioned in connection with the third diagram above, the outer cover 73 of the jack 71 is shielded and reduces noise even if a circuit element with a high dimensional amplifier is present in the jack 71.

The above description of the preferred embodiment of the present invention is presented for purposes of illustration only.

The invention is not intended to be limiting (exhaustible) in the form presented here, and many modifications and variations are possible in light of the above-described principles.

For example, the terminal surface of the optical fiber 54 or 82 may be protruded from the front terminal of the plug 42 or 79 as shown in FIG. 6A or positioned on the same plane as described in connection with FIG. 5B. Alternatively, the recess may be recessed as shown in FIG. 6B.

The protrusion of the plug does not necessarily have to have a circular cross section.

For example, the cross-sectional shape shown in FIG. 7 and other modifications and variations to those skilled in the art should be included within the scope of the present invention.

Claims (17)

The jack is comprised of a plug comprising an optical fiber having a surface of a front terminal on an optical axis for transmitting and receiving optical signals, and a jack having an opening allowing the plug to be removably inserted. A support plate and an optical element that is supported by the support plate on the optical side and is disposed in close proximity to the optical element facing the surface of the front end of the optical fiber when the plug is fully inserted into the jack. A circuit element to be connected, a lead wire connected to the circuit element for inputting or outputting an electrical signal from the circuit element, and the support plate, the circuit element, and the lead wire close to each other to reduce noise When the plug is fully inserted into the jack, it is in electrical contact with the plug. Connection device, characterized in that the shield consists of a suitable conductor on. The connecting device according to claim 1, wherein the plug has a protruding piece having a front end, and the optical fiber is disposed in the protruding piece. The connecting device according to claim 2, wherein the front surface of the front terminal is located on a plane with the remaining terminal. The connecting device according to claim 2, wherein the front surface of the front terminal slightly protrudes from the front terminal. The connecting device according to claim 2, wherein the surface of the front terminal enters slightly from the front terminal. A connection plug having a front terminal is accommodated, wherein the connection plug faces the front end of the connection plug when the conductor piece for electrical contact, the support plate, and the connection plug are fully inserted into the connection jack. An optical element supported by the support plate at a position, a circuit element disposed on and connected to the support plate near the optical element, converting an electrical signal into an optical signal or an optical signal into an electrical signal; A lead wire connected to said circuit element for input or output of an electrical signal to or from a circuit element and disposed near said support plate, said circuit element and said lead wire for reducing noise, said connection plug Is brought into electrical contact with the contact plug when it is fully inserted into the A connecting jack comprising a shielded conductor. The connecting jack according to claim 6, wherein the connecting jack has an outer cover made of a conductive material, the conductive piece, and the circuit element. 7. The connecting jack of claim 6, wherein said circuit element comprises an amplifier and a comparator. And a plug and a jack, wherein the plug is removably inserted into the jack for electrical contact but surrounds the optical fiber for transmitting the optical signal and for the optical fiber to transmit or receive the optical signal. It consists of an elongated protruding piece having the surface of the front terminal on the optical axis, wherein the jack is provided with a shielding conductor for reducing noise, a support plate, and an optical signal transmitted through the optical fiber or the optical fiber. A circuit which transmits an optical signal, which is supported and arranged in close proximity and connected by the support plate at the position on the optical axis facing the front end surface of the optical fiber when the plug is fully inserted into the jack. An optical element connected to the element and a lead wire connected to the circuit element described above Wherein the shielding conductor is disposed in close proximity to the support plate, the optical element, the circuit element and the lead line, and is electrically connected to the plug when the plug is fully inserted into the jack. Connection device characterized in that the contact. 10. A connection apparatus according to claim 9, wherein said jack comprises a signal conversion device for converting an optical signal into an electrical signal or converting an electrical signal into an optical signal. 10. A connection apparatus according to claim 9, wherein said jack adds a conductor piece for making said plug electrically contact with said plug when said plug is inserted into said jack. 10. A connection apparatus according to claim 9, wherein said jack adds a shielding conductor surrounding said optical element of said optical transmission or optical storage and said signal conversion device. 11. A connection device according to claim 10, wherein said signal conversion device comprises an amplifier. A connecting device according to claim 1, wherein said optical element is a light receiving device and said circuit element comprises an amplifier and a comparator. 15. The connection device according to claim 14, wherein the light receiving device is a photo transistor. 2. A connection device according to claim 1, wherein the optical element is a light emitting device and the circuit element comprises a driver IC (interated circuit element). The connection device according to claim 16, wherein the optical element is a light emitting diode.