CN1118115C - Double pin connector - Google Patents

Abstract

A double-pin connector for wiring on the rear panel of the audio combination, which is characterized in that one of the two pins of the double-pin connector is made movable, and a movable A space for describing connection information. By adopting the invention, no matter how lacking the user's knowledge of the equipment is, the double-pin plug can be connected with the socket pair in one fell swoop correctly and easily.

Description

double pin connector

technical field

The present invention relates to a double-pin connector composed of two double-pin plugs and two wires connecting the two double-pin plugs back to back for connecting multiple pairs of sockets arranged on the rear panel of an audio combination at one go.

Background technique

Recently, with the increase of music lovers pursuing high sound quality in various fields, in order to meet this demand, a combination of various audio models that can record and play various audio media has been manufactured, and it can be used in the home. Rapid popularity. This kind of audio combination includes CD, MD, tape, and tuner if there are few models, and PHONO, tuner, CD, MD, tape, and DVD if there are many models. And the future audio combination must be equipped with DVD.

If the audio system user wants to use so many audio media freely, it is necessary to correctly connect the above-mentioned media with speakers, TV, etc.

Generally, the wiring of the audio system is performed by inserting the plug of the connector into the socket of each device provided on the rear panel as shown in an example in FIG. 15 . Regarding the number of sockets, there are 12 (CD*2, MD*4, tape*4, tuner*2) on the audio combination with the above-mentioned few models, and as many as 26 on the audio combination with the above-mentioned models. (PHONO*2, Tuner*2, CD*2, MD*4, Tape*4, DVD*12).

As shown in FIG. 16, a conventional connector used for connection between sockets is a connector composed of a single-pin plug 20 and a single wire 21, and connects one socket to another socket.

However, since audio equipment has a jack pair for L (left channel) and R (right channel), it would be convenient if two pins could be connected to this jack pair at the same time. Based on such requirements, a double-pin plug 30 as shown in FIG. 17 appears. This double-pin plug 30 has two fixing pins 32 and 33 protruding from the front side of the housing 31, a bushing 34 protruding from the center of the rear side of the housing 31, and two pins 32 and 33 connected to the bushing 34. Wire 35.

As mentioned above, wiring on the rear panel of the audio system is very complicated and time-consuming for the user, and for users who are not familiar with wiring or manuals, whether it is a single-pin connector or a double-pin connector, Because the shape of the plugs on both sides is the same, and the two pins of each plug are the same, it is easy to cause wrong wiring between machines or between L and R.

Also, the two pins 32 and 33 of the conventional double-pin plug are fixed, so when they are inserted into the socket pair together, they cannot be inserted smoothly due to so-called pin offset.

Furthermore, in the past, the grounding fittings of the plug and the grounding fittings of the socket are respectively made into ring shapes, and these grounding fittings are kept in contact with each other by elastic force. Therefore, the contact force between the various grounding fittings of the plug and the socket accounts for most of the insertion and extraction force between the plug and the socket. Therefore, the necessary plug-in and pull-out force is increased between the double-pin plug and the socket equipped with the conventional grounding fittings and is not easy to use.

Therefore, the object of the present invention is to provide a double-pin connector, regardless of the user's lack of machine knowledge, when wiring on the back panel of the audio combination, it is also possible to quickly and accurately connect the socket pair and the double-pin plug in one fell swoop. connect.

Contents of the invention

In order to achieve the above object, the double-pin connector of the present invention is a kind of two double-pin plugs and the two double-pin plugs are connected back to back in order to connect the plurality of pairs of sockets arranged on the back panel of the audio combination in one fell swoop. A connector composed of two connected wires is characterized in that the above-mentioned double-pin plug has: a substantially rectangular shell, two pins protruding vertically from the front side of the shell, a grounding fitting shared by the two pins, And the connection part which connects these two support pins and two electric wires, and makes one of the two support pins movable. Therefore, even if there is a pin misalignment between the two pins of the double pin plug and the socket pair on the panel, the pin misalignment can be absorbed by the movement of one pin, and the double pin plug can be smoothly inserted into the socket pair at one stroke .

The double-pin plug of the present invention has a bushing installed obliquely at one end of the rear side of the housing relative to the outer surface of the housing. Except for the bushing, almost the entire side of the rear side of the housing becomes a space for recording information. Therefore, the model to be connected can be recorded or pasted in the above-mentioned space, and as a result, the user can connect while looking at the connection information, so that wrong connection of the model can be prevented.

Moreover, the above-mentioned common ground fitting of the double-pin plug of the present invention is formed by winding the two ends of the elastic strip-shaped metal plate on the two supporting pins in opposite directions. Therefore, compared with the double-pin plug in which the two pins respectively have ring-shaped grounding fittings, the insertion and extraction force will not be increased due to the grounding fittings, and the insertion and extraction are smooth.

In addition, in the double-pin plug of the present invention, the front end portion of the pin is inclined toward the front end, and the front end is rounded. Therefore, it is easy to insert into the socket, and since the contact between the pin and the socket is later than the contact between the mutual grounding fittings, there will be no malfunction.

Also, the two pins of the double-pin plug of the present invention are provided with red and white bushings representing L and R, respectively. Therefore, erroneous connection of L and R can be prevented.

Also, the two electric wires of the double-pin connector of the present invention are two-core shielded wires. Therefore, it is simpler and more beautiful than the occasion where the back panel of the audio combination is connected with two wires.

Description of drawings

FIG. 1 is an explanatory diagram of the overall structure of an embodiment of the double-pin connector of the present invention.

Fig. 2 is a side view of A-A of Fig. 1 .

Fig. 3 is an explanatory view of the rear side of a double-pin plug in an embodiment of the double-pin connector of the present invention.

Figure 4 is a side view of the pins of the same dual pin plug.

Fig. 5 is a front view of the same pin.

Figure 6 is a rear view of the same pin.

Fig. 7 is a side sectional view of the same pin.

Fig. 8 is a front view of an insulating seat for accommodating a movable pin of a double-pin plug according to the present invention.

Fig. 9 is a C-C sectional view of Fig. 8 .

Fig. 10 is a B-B sectional view of Fig. 8 .

Fig. 11 is an explanatory diagram of the positional relationship between the movable pin, the insulating seat and the shell of the double-pin plug of the present invention.

Fig. 12 is an explanatory diagram of the movement of the movable pin of the same double-pin plug.

Fig. 13 is an explanatory diagram of the structure of the ground fitting of the same double-pin plug.

Fig. 14 is a cross-sectional view of the two-core shielded wire of the double-pin connector of the present invention.

Fig. 15 is an explanatory diagram of an example of an acoustic combination rear panel.

Fig. 16 is an explanatory view of a conventional one-pin connector.

Fig. 17 is an explanatory diagram of a conventional two-pin plug.

Detailed ways

Hereinafter, an embodiment of the double-pin connector of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1 , the double-pin connector 1 of the present invention is composed of two double-pin plugs 2 and a two-core shielded wire 3 connecting the two double-pin plugs 2 back to back.

The double-pin plug 2, as shown in Figure 1, has: a substantially rectangular housing 4 with rounded corners, a movable pin 5 protruding from the front side of the housing 4 (the side opposite to the socket) and a fixed pin 6, which is located on the housing 4 The ground fitting 7 on the front side, the bushing 8 protruding obliquely from one end of the rear side of the housing 4 relative to the rear side, and the space 9 located on the rear side except the bushing 8 .

As shown in the A-A side view of FIG. 2, the housing 4 is fixed with screws 10 after mating the platefish-shaped upper case 4a and the lower case 4b respectively formed from synthetic resin plates.

FIG. 3 shows the rear side of the two-pin plug 2 . Since a bushing 8 is provided at one end of the rear side and protrudes outward, most of the rear side becomes a space 9 . This space 9 is used to record or paste various connection information, so as to prevent users from making mistakes when connecting the audio combination. When using this space 9, as shown in Figure 3, the manufacturer name of the audio equipment can be recorded in the upper part of the space 9 , record the model in the lower part, such as CD, MD, etc., so that you will not mistake the connection object, which is very convenient.

Again, in the embodiment shown in Fig. 3, because the bushing 8 is installed on one side, so the remaining area of the installation part is very large, so the area for recording the name of the manufacturer or the name of the model, etc. is just very large, so that it can be clearly marked. Indicates that it is easy to identify and prevents connection errors, etc.

4 , FIG. 5 , FIG. 6 , and FIG. 7 show the side, rear, front, and side sections of the movable pin 5 and the fixed pin 6 of the double-pin plug 2, respectively. Each of the pins 5 and 6 is made of metal in a cylindrical shape, and its front end is angled toward the front end by pressing, and the front end is made into an arc shape. Therefore, when inserting the socket, point C of Fig. 4 just becomes the contact point with the center pin of the socket. This contact point C is located at a rear and lower position than the conventional plug, so when the pins 5 and 6 are inserted into the socket, the plug and each ground fitting of the socket contact first in time, so that malfunction can be prevented.

Also, when the front ends of the pins 5 and 6 are made into an arc shape by pressing, although three wedge-shaped slits 11 are formed at intervals of 120 degrees at the front ends of the pins 5 and 6, the insertion and extraction force will not be affected by this. .

At the rear of the pins 5,6 there is a protruding flange 12. The upper part of the flange 12 is cut horizontally, thereby achieving the function of stopping rotation. A horizontal plate 13 is integrally formed at the lower part of the rearmost part of the pins 5 , 6 .

An important feature of the double pin plug 2 is that the pin 5 of the two pins 5, 6 is movable. The movable pin 5 will be described below.

The movable pin 5 is attached to the housing 4 as follows. The rear portion of the movable pin 5 is mounted on the casing 4 via the insulating seat 14 . FIG. 8 is a front view of the insulating seat 14 , FIG. 9 is a C-C sectional view of FIG. 8 , and FIG. 10 is a B-B sectional view of FIG. 8 . The insulating base 14 is an insulating plate, and has a through-hole 15 for inserting the rear part of the movable pin 5 in the center part. The through hole 15 expands in a tapered shape with a solid angle ω toward the front end of the movable pin 5 , that is, the outer direction.

Four die-cast springs 16 are mounted on the insulating base 14 around the through hole 15 at the top, bottom, left, and right.

As shown in Figure 11, when the movable pin 5 is passed through the through hole 15 of the insulating seat 14, and the upper case 4a and the lower case 4b of the casing 4 are embedded in the insulating seat 14 to join the upper case 4a and the lower case 4b, the movable pin The last part of 5 is supported by the shell 4, and on the other hand, the part of the movable pin 5 that enters the through hole 15 of the insulating seat 14 is clamped from all sides by the molded spring 16.

In this state, due to the elasticity of the die-cast spring 16, the movable pin 5 can tilt in any direction within the range of the solid angle ω around the point CT as shown in FIG. Dotted lines shown in FIG. 12 indicate a state in which the movable pin 5 is inclined in the vertical direction.

As mentioned above, since the movable pin 5 of the double-pin plug 2 can be tilted in any direction within the range of the solid angle ω with CT as the center, when the pins 5 and 6 are inserted into the socket pair at the same time, the pin offset that usually occurs can be reduced. Absorbed by movable pin 5 for smooth insertion.

Also, in the dual-pin plug of the present invention, red and white bushings are attached to the movable pin 5 and the fixed pin 6 to distinguish L and R. Thus, when wiring on the audio combination, it is possible to prevent wrong wiring of L and R.

Next, another feature of the double-pin connector of the present invention, that is, the structure of the ground fitting 7 will be described. FIG. 13(A) is a view of the double-pin plug 2 viewed from the front. Pins 5, 6 protrude from the front side of the double-pin plug 2. The ground fitting 7 shared by the two pins is arranged around the two supporting pins 5,6. Ground fitting 7 is to be open end with the two ends of elastic band-shaped metal plate 7a, as shown in Figure 13 (B), each end is bent inward along the outer circumference of pin 5,6 in an arc shape.

When the double-pin plug 2 is inserted into the socket, even if the pins 5 and 6 are ring-shaped with the ground fittings of each target socket, since the ground fittings of each socket enter into the bent parts on both sides of the ground fitting 7 of the double-pin plug 2 and are grounded Clamped by the elastic force of fitting 7, so a reliable grounding contact force can be obtained.

In the past, because the grounding fittings of the plug or socket are ring-shaped in the single-pin plug, considerable force is required to insert and pull out the pin plug, and it may require twice the insertion and extraction force to apply it to a double-pin plug, but this disadvantage can be Utilize the above-mentioned structure of the ground fitting 7 to eliminate.

Finally, the two-core shielded wire 3 will be described. Although two wires are required to connect two double-pin plugs 2 back to back, a two-core shielded wire 3 shown in FIG. 14 is used in the present invention. This two-core shielded wire 3 is the prior art, but when it is used for the connection between the two double-pin plugs 2 of the double-pin connector, the complexity of wiring at the back of the audio combination can be reduced.

The two-pin connector of the present invention has the following effects.

(1) Because one of the two pins of the double-pin plug of the double-pin connector is movable, when the two pins of the double-pin plug are inserted into the socket pair of the panel together, the movable pin can be used to absorb the pin offset, As a result, the insertion operation is performed smoothly.

(2) Since almost the entire rear side of the shell of the double-pin plug is a space where characters and symbols can be written or pasted, it is possible to write or paste information such as the manufacturer name or model of the connection object in this space. Prevent incorrect connections.

(3) Since red and white bushes indicating L and R are attached to the two pins of the double-pin plug, wrong connections can be prevented.

(4) Since there are two pins around the double-pin plug and a common grounding fitting with an open end, the balance of the contact force and insertion force between the two pins of the double-pin plug and the socket for each grounding fitting can be properly maintained .

(5) Since the pins of the double-pin plug are made inclined at the front end and the front end is rounded, it is easy to insert the socket, and when the socket is inserted, the contact of the front end is later than the contact between the grounding fittings, so there is no error action.

(6) Since the wire connecting the two double-pin plugs uses a two-core shielded wire, the back of the audio combination is simple and beautiful.

(7) Since the double-pin plug of the present invention adopts an overall unique shape in which two-core shielded wires are connected at one end of the rear side via an outwardly inclined bushing, especially when connecting two adjacent sockets up and down, if it is turned upside down, the It is difficult to connect, so it can effectively prevent wrong wiring.

Claims (4)

1. double pin connector, be for the majority on the back panel that will be arranged in combined acoustics to connecting at one stroke between the socket by two double-pin plugs with these two double-pin plugs are leaned against two connectors that electric wire constituted that are connected privately, it is characterized in that, described double-pin plug has: roughly OBL shell, from two vertically outstanding backing pins of the leading flank of this shell, the ground connection accessory that this two backing pin is shared, and the connecting portion of this two backing pin of connection and two electric wires, and a wherein backing pin of described two backing pins is movable, described connecting portion has the lining of installing towards outer incline at relative this shell in an end of shell trailing flank, the trailing flank of described shell is except described lining, roughly whole one side becomes the space that information-recording is used, and described two electric wires are two core shielding conductors.

2. double pin connector according to claim 1 is characterized in that, the described shared grounding accessory of described double-pin plug is that the both ends with elasticity strip metallic plate oppositely are wrapped on two backing pins each other and constitute.

3. double pin connector according to claim 1 is characterized in that, the leading section forward end of the pin of described double-pin plug tilts, and front end is done circular.

4. double pin connector according to claim 1 is characterized in that, two backing pins of described double-pin plug have the redness and white lining of representing L and R respectively.

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