JPH0531173U - Dual connector adapter - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention can reduce the parts cost and the assembly cost by a simple structure, and at the same time, by a small structure,
It is an object of the present invention to provide a dual connector adapter that requires a small mounting space and can be easily connected to a dual connector for bus wiring even in a small device. [Structure] A main body 21, two jack portions 21a and 21b arranged side by side on the main body, and a plurality of jacks having one end at a connecting position of each jack portion and the other end protruding from a back surface of the main body Contact pins 22, 23, 24, 25,
26, 27, in which the corresponding contact pins of each jack part can be connected to each other at the other end, in a double connector 20, 40, a recess is provided in the rear face of the body, At this time, the contact pin of one jack portion is directly connected to the corresponding contact pin of the other jack portion, and small single-head plugs 34 and 41 connected to these contact pins are provided. Configure the dual connector adapter as shown.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dual connector that can be used in an integrated control system so that various devices including AV devices can be collectively controlled, and in particular, a small single-head plug as a connection terminal on the device connection side. The present invention relates to an adapter equipped with.

[0002]

[Prior Art]

 BACKGROUND ART Conventionally, there is known an integrated control system capable of collectively controlling various devices including an AV device in a home. As such an integrated control system, there is a D2B system. In this system, in order to control various devices, for example, as shown in FIG. 6, the control lines of the various devices are arranged in a line by bus wiring. I am trying to connect to.

That is, in FIG. 6, various domestic devices, in the case shown, BS antenna 1, BS converter 2, BS tuner 3, television 4, video camera and video deck 5, video disc player 6, stereo device 7, the personal computer 8 and the telephone 9 are connected to each other by a bus wiring 10 made up of three main lines. For example, the control state of each device can be displayed on the screen of the television 4, The control operation can be easily performed.

In such an integrated control system, in order to connect the control lines of various devices by bus wiring, a dual connector 11 for bus wiring as shown in FIG. 7 is attached to the back surface of each device. The bus wiring dual connector 11 has two jack portions 12a and 12b on the front surface of the main body 12. As a result, various devices can be easily installed by sequentially inserting the plug parts of the connection cable (not shown) into the jack parts 12a and 12b of the bus wiring dual connector 11 attached to the above various devices. Bus wiring can be connected.

Here, in the dual connector 11 for bus wiring, as shown in FIG. 8, the contact pins 13 of the jacks 12 a and 12 b penetrate through the back surface of the main body 12, and a printed circuit board 14 for mounting is mounted. By mounting the contact pins 13 on the upper surface of the printed circuit board and soldering the contact pins 13 to predetermined positions of the printed circuit board 14, they can be appropriately connected to each other by a conductive pattern provided on the back surface of the printed circuit board 14, and A terminating resistor 15 is mounted on the board 14, and the terminating resistor 15 is provided only when the plug portion of the connection cable is inserted into both jack portions 12a and 12b by a switch (not shown). , The contact pin 13 can be released.

The dual connector 11 for bus wiring configured as described above can be mounted in an embedded state on the outer surface of the main body of various devices so that the jack portions 12a and 12b are exposed. There is.

[0007]

[Problems to be solved by the device]

 However, in the bus wiring dual connector 11 configured as described above, it is necessary to mount it on the printed circuit board 14 at the time of mounting, the number of parts is large, and the parts cost is high. However, the assembly cost is high because the assembly is complicated.

Further, the whole becomes relatively large and a large installation space is required. For example, in a small handy type video camera, when the dual connector 11 for bus wiring is installed, Since the main body of the video camera is made small to the limit in order to make it compact, it is not possible to secure a space for accommodating such a dual connector 11 for bus wiring. There was a problem that it was difficult to incorporate it into the integrated control system.

In view of the above points, the present invention can reduce the component cost and the assembly cost with a simple configuration, and the small configuration requires a small mounting space, and even for a small device. SUMMARY OF THE INVENTION It is an object of the present invention to provide a dual connector adapter that allows easy connection of a dual connector.

[0010]

[Means for Solving the Problems]

 According to the present invention, the above object is to provide a main body, two jack portions provided side by side with the main body, one end at a connecting position of each jack portion, and the other end protruding from the rear surface of the main body. And a plurality of contact pins, and corresponding contact pins of each jack part can be connected to each other at the other end, the dual connector is provided with a concave part on the back surface of the main body. Inside the recess, the contact pin of one jack is directly connected to the corresponding contact pin of the other jack, and a small single-head plug connected to these contact pins is provided. This is achieved by a dual connector adapter characterized in that

[0011]

[Action]

 According to the above configuration, the contact pin, one end of which is arranged at the connection position of each jack, is directly connected to the corresponding contact pin in the concave portion provided on the back surface of the main body. Since the contact pins are connected to each other during mounting, there is no need for a printed circuit board for mounting, so the number of parts is small, and the assembly is easy. Since it can be reduced, and because it can be configured in a small size, it requires less mounting space and is excellent in saving space.

Furthermore, since a single-head type jack is connected to the contact pin, it is possible to connect a dual connector to a very small device such as a small handy type video camera. If the device is equipped with a small single-headed jack in advance, the single-headed plug of this connector can be simply inserted into the single-headed jack to connect it to the device. It is possible to connect a connector, and by inserting the plug part of the connection cable into the jack part of the dual connector adapter like other various devices, the device can be used for such small devices. It can be easily incorporated into an integrated control system without increasing the volumetric weight of the.

[0013]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. FIG. 1 shows an embodiment of a dual connector adapter for bus wiring constructed according to the present invention.

In FIG. 1, the dual connector adapter 20 for bus wiring is composed of a main body 21 molded by resin molding. The main body 21 has two jack portions 21a and 21b provided side by side on the front surface thereof, and a recessed portion 21c provided on the back surface thereof.

Each of the jack portions 21a and 21b comes into contact with a connection terminal of the plug portion when a plug portion of a connection cable (not shown) is inserted into the jack portions 21a and 21b, as shown in FIG. 3, for example. Fix so that one end 22a, 23a, 24a, 25a, 26a, 27a of a plurality of contact pins 22, 23, 24, 25, 26, 27 are located at possible connection positions. It is designed to hold.

As shown in FIG. 3, each of the contact pins 22 to 27 projects into a recess 21 c on the back surface of the main body 21, and the contact pins 22 to 24 are attached to the contact pins 25, 26, 27, respectively. In contrast, they are properly connected.

Further, the contact pins 22 to 25 have one ends 22a, 23a, and 24a formed in a fork shape, and the fork-shaped portion is a connection pin of the plug portion of the connection cable inserted into the jack portion 21a. It is configured to be electrically connected by sandwiching the pin, and has an engaging portion adjacent to the forked portion, and the engaging portion fits into the jack portion 21a. This allows it to be fixedly held in place.

Further, in the recess 21c on the back surface of the main body 21, a groove 28 that extends in the horizontal direction and opens rearward is provided substantially at the center thereof, and inside the groove 28, The terminating resistor 29 can be accommodated, and the lead terminals at both ends thereof are bent rearward so as to project rearward. At that time, one of the lead terminals can be connected to the above-mentioned contact pin 24 by soldering or the like.

A switch is provided adjacent to the groove 28, the switch being above and below the groove 28, orthogonal to the groove 28, and along the bottom surface of the recess 21c. The free ends 31a and 32a of the switch movable parts 31 and 32 made of an elastic material are provided with holes through which the free ends 31a and 32a of the switch movable parts 31 and 32 penetrate from the inside of the recess 21c of the main body 21 toward the jacks 21a and 21b. , 21b. Further, the intermediate position between the movable portions 31 and 32 can come into contact with a protrusion (not shown) which is exposed on the bottom surface of the recess 21c and serves as a contact point of the switch.

As a result, when the plug portion of the connection cable is inserted into each jack portion 21a, 21b, the movable portion 31, 32 of the switch protruding into the jack portion 21a, 21b is inserted by the plug portion. Since the free ends 31a and 32a are pushed in, the movable parts 31 and 32 of the switch are deformed rearward in the recessed part 21c of the main body 21 due to its elasticity, whereby the movable parts 31 and 32a are moved. The switches are turned off by separating the central portions of the parts 31 and 32 from the protrusions.

Further, a small single-head plug (so-called stereo mini plug in the case shown) 34 is fixedly attached to the rear of the main body 21 via a case 33. In the illustrated case, the single-head plug 34 has a structure of three contacts, and each of the contacts 34a, 34b, 34c is connected to one of the contact pins 22, 23, 24, respectively.

Here, the contact pins 22 to 27, the resistor 29, the switches and the contacts 34a, 34b, 34c of the single-head plug 34 are connected to each other as shown in the circuit diagram of FIG. By opening the switch, the terminating resistor 29 can be disconnected from the contact pins 22, 24 and 25, 27.

The recess 21c of the main body 21 described above is covered with the case 33 described above so as to be protected from dust and the like.

The dual connector adapter 20 for bus wiring according to the present invention is configured as described above. For example, as shown in FIG. 4, when it is attached to a small handy type video camera 35, the video camera 35 The single-headed plug (stereo / minijack) 35a provided in advance is inserted with the single-headed plug 34 of the dual connector adapter 20 for the bus wiring, and the dual connector adapter 20 for the bus wiring is further inserted. The plug portion 36a on one side of the connection cable 36 is attached to one of the jack portions 21a or 21b, and the plug 36b on the other side of the connection cable 36 is connected to the jack of the dual connector 37a for bus wiring of other various devices 37. By inserting into the unit, bus wiring can be connected to the various devices 37.

Further, the other jack portion 21b or 21a of the dual connector adapter 20 for bus wiring can be connected to other various devices (not shown) by bus wiring via a connection cable. is there.

When the video camera 35 is used alone outdoors without being incorporated in the integrated control system, the dual connector adapter 20 for bus wiring can be removed from the single-headed jack 35a of the main body. , Its portability and operability are not impaired.

Here, the dual connector adapter 20 for bus wiring mounted in this way is provided with the jacks 21a and 21b of the main body 21 when the plug portion of the connection cable is not inserted. Since no force is applied to the free ends 31a, 32a of the movable parts 31, 32 of the switch projecting into the parts 21a, 21b, the central parts of the movable parts 31, 32 are elastic. Based on this, both are in contact with the protrusions, and as is apparent from the circuit diagram of FIG. 2, the terminating resistor 29 is connected between the contact pins 22 and 24 and between the contact pins 25 and 27.

From this state, when the plug portion of the connection cable is inserted into one jack portion, for example, the jack portion 21a, the plug portion protrudes into the jack portion 21a in the jack portion 21a. While pressing the free end 31a of the movable part 31 of the switch toward the rear, the respective connection terminals are formed into the fork shape of the one ends 22a, 23a, 24a of the contact pins 22, 23, 24 of the junk part 21a. Will engage the part.

This allows each line of the connection cable to be electrically connected to the contact pins 22, 23, 24, respectively, and the movable part 31 of the switch resists its elasticity and is It is deformed so as to be curved toward the rear of 21, so that its central portion is separated from the protrusion.

At this time, since the movable portion 32 of the switch is still in contact with the protrusion, the contact pins 22 and 25 are still connected to the contact pins 24 and 27 through the terminating resistor 29. ..

Further, when the plug portion of the connection cable is inserted into the other jack portion 21b as well, the movable portion 32 of the switch in which the plug portion projects into the jack portion 21b is inserted in the jack portion 21b. While pushing the free end 32a of the rearward toward the rear end, the respective connection terminals engage with the forked portions of the one ends 25a, 26a, 27a of the contact pins 25, 26, 27 of the junk portion 21b. The respective lines of the connection cable can be electrically connected to the contact pins 25, 26, 27, respectively, and the movable portion 32 of the switch resists the elasticity of the contact pin 25, 26, 27. It is deformed so that it bends toward itself, which causes the central part of the protrusion to move away from the protrusion.

Thus, since the central portions of the movable parts 31 and 32 of the switch are both separated from the protrusions, the contact pins 22 and 25 are cut off from the contact pins 24 and 27.

As described above, according to the dual connector adapter 20 for bus wiring, which is attached to various devices to be bus-wired, the connection cables are connected to both jacks 21a, 21b in the middle of the bus wiring. When the plug part is inserted, the terminating resistor 29 is cut off, and when the plug part of the connection cable is inserted only in one jack part 21a or 21b at the end of the bus wiring, the terminating resistor 29 is disconnected. The resistor 29 is not cut off and is inserted between the control lines.

FIG. 5 shows another embodiment of the dual connector adapter for bus wiring according to the present invention. In the dual connector adapter 40 for bus wiring, the single-headed plug 41 is attached to the rear surface of the main body 21. The configuration is similar to that of the dual connector adapter 20 for bus wiring in the embodiment of FIG. 1 except that it is connected to the case 33 not directly but through the cable 42. , Its operation is similar.

[0035]

[Effect of the device]

 As described above, according to the present invention, the parts cost and the assembly cost can be reduced by the simple structure, and the small size structure requires a small mounting space. It is possible to provide an extremely excellent dual connector adapter that can easily connect the dual connector for bus wiring.

[Brief description of drawings]

1 shows an embodiment of a dual connector adapter for bus wiring constructed according to the present invention, (A) is a front view and (B) is a side view.

FIG. 2 is a circuit diagram showing an electrical configuration of the connector adapter of FIG.

3 is a vertical sectional view taken along the center of the connector adapter of FIG.

FIG. 4 is a schematic view showing a usage state of the connector adapter of FIG.

FIG. 5 is a perspective view showing another embodiment of a dual connector adapter for bus wiring according to the present invention.

FIG. 6 is a schematic diagram showing a conventional integrated control system for a plurality of devices.

7 is a front view showing an example of a dual connector for bus wiring used in the integrated control system of FIG.

8 is a schematic perspective view showing a mounted state of the dual connector for bus wiring in FIG. 7. FIG.

[Explanation of symbols]

 20, 40 Double connector adapter 21 Main body 21a, 21b Jack part 21c Recessed part 22, 23, 24, 25, 26, 27 Contact pin 28 Groove part 29 Termination resistor 31, 32 Movable part 33 Case 34, 41 Single-head plug 35 Video Camera 36 Connection cable 37 Various devices 42 Cable

Claims (1)

[Scope of utility model registration request] 1. A main body, two jack portions provided side by side with the main body, and a plurality of contacts each having one end at a connecting position of each jack portion and the other end protruding from a back surface of the main body. And a corresponding contact pin of each jack portion can be connected to each other at the other end, in a double connector, a recess is provided on the back surface of the main body, and one jack is provided in the recess. Part of the jack is directly connected to the corresponding contact pin of the other jack part, and is provided with a small single-headed plug connected to these contact pins. Connector adapter.