JPH0548265U - Pin plug - Google Patents

Abstract

(57) [Abstract] [Purpose] The conventional coaxial cable with a pin plug is not required to connect two high-frequency devices, which enables cost reduction by reducing the number of parts and also prevents mechanical vibration. A pin plug that is both safe and highly reliable in terms of electrical circuitry is realized. [Constitution] It is made of a conductive material and has a hollow cylindrical shape with a hole penetrating from the jack insertion side to the back side. The outer contact, the insulating washer, and the insulator can be stored. After the assembly, the insulating washer is stored. In the radial direction of the hole portion and the jack insertion direction of the hole portion where a part of the insulator is housed, a shell in which a gap portion that does not directly contact each component is formed is provided, and the pin is flexibly fixed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a pin plug suitable for connection between two high-frequency devices having a unit structure, and in particular, for the connection between two high-frequency devices, a conventional coaxial cable with a pin plug is not required, and the number of parts is reduced. The present invention relates to a pin plug that enables cost reduction, is safe against mechanical vibration, and is highly reliable in terms of electrical circuit configuration.

[0002]

[Prior Art]

 2. Description of the Related Art Conventionally, in various electronic devices, a coaxial cable having pin plugs at both ends has been used to connect unit configurations, that is, high-frequency devices housed in different housings to each other. FIG. 6 is a perspective view of a main part for explaining an example of a connection state of two high-frequency devices having a conventional unit configuration. In the figure, 1 is an RF modulator, 1a is an input side coaxial connector, 1b is a jack, 2 is a TV tuner, 2a is a jack, 3 is a coaxial cable with a pin plug, 3a is the coaxial cable, and 3b and 3c are pin plugs. Show.

As shown in FIG. 6, in order to connect two high frequency devices, for example, an RF modulator 1 and a TV tuner 2, a coaxial cable 3 with a pin plug is conventionally used. The coaxial cable 3 with a pin plug is provided with pin plugs 3b and 3c at both ends of a coaxial cable 3a having a predetermined length.

Then, one pin plug 3b is connected to the jack 1b of the RF modulator 1, and the other pin plug 3c is connected to the jack 2a of the TV tuner 2 to form a desired circuit. Like the RF modulator 1 and TV tuner 2 shown in FIG. 6, a coaxial cable 3 with a pin plug is required to connect two high-frequency devices, and the number of parts increases accordingly. It will increase the cost.

As one connection method for solving such an inconvenience, one high-frequency device, for example, a connection device in which a pin plug is directly provided on the TV tuner 2 has already been proposed (Japanese Utility Model Publication No. 63-159284). ). In this connecting device, a pin plug having the same structure as the pin plug 3b is attached to one of the high-frequency devices, for example, the main body of the TV tuner 2 in FIG. 6, instead of the jack 2a, and the pin plug on the TV tuner 2 side and the RF modulator 1 This is a configuration in which it is directly connected to the jack 1b.

With such a configuration, it is possible to omit the coaxial cable 3 with a pin plug when connecting two high-frequency devices. However, in this conventional example, high precision is required in the position and dimensions for mounting the high frequency equipment such as the RF modulator 1 and the TV tuner 2 in a chassis, a case, etc. not shown in FIG. If there is an error in the printed circuit board, peeling or the like may occur on the printed circuit board due to bending when connecting the connecting device to another connector.

That is, the jack 1b of the RF modulator 1 and the pin plug on the TV tuner 2 side must be designed so as to be accurately opposed to each other in a state where the jack 1b and the TV tuner 2 side are assembled to a chassis, a case, or the like. In addition, the pin plugs and jacks need to be firmly fixed to their respective body parts. Therefore, there is a problem that a device incorporating such a high-frequency device that requires high precision results in increased cost and is not practical.

[0008]

[Problems to be solved by the device]

 The present invention solves such inconvenience that occurs when two conventional high-frequency devices are connected, eliminates the need for a coaxial cable for connection, and has a higher mounting accuracy on a panel or printed circuit board than before. It is an object of the present invention to provide a pin plug that does not require high accuracy, and that does not cause peeling or the like on a printed circuit board even when a plug is attached or detached, and has improved reliability.

[0009]

[Means for Solving the Problems]

 According to the present invention, in a pin plug having a pin (11), an outer contact (14) and an insulating washer (12), it is made of a conductive member and has a hollow portion having a hole penetrating from the jack insertion side to the back side. It has a cylindrical shape and is capable of accommodating the outer contact (14), the insulating washer (12), and the insulator (13) described later, and the radial direction of the hole in which the insulating washer (12) is accommodated. The size is such that the insulating washer (12) has a gap portion that does not come into contact with the periphery of the insulating washer (12). A shell (15) having a gap portion between the shell (15) and the shell (15), which is inserted from the back side of the shell (15) and connected to the pin (11). An insulator (13) having a hole into which a conductor (16) to be inserted is inserted, and a pin (11) fixed to the insulating washer (12) is inserted into the shell (15) from a jack insertion side. The outer washer (14) is attached to the shell (15) with a part of the insulating washer (12) pressed by the outer contact (14), and the shell (15) is fixed from the back side. ), The insulator (13) is inserted and fixed.

[0010]

[Action]

 In this invention, by making the pin of the pin plug flexible, it is possible to fully absorb variations in the mounting dimensions between the pin plug and the high-frequency equipment, and between the high-frequency equipment and the panel, printed circuit board, chassis, case, etc. In this way, by relaxing the requirement for high precision, the printed circuit board will not be peeled off even if it is twisted when the plug is attached or detached, improving reliability and stabilizing quality and reducing cost. It will be realized and productivity will be improved. The flexible construction of this pin is achieved by the gap between the radial gap of the insulating washer that supports it and the insulator that is fixed to the back side of the insulating washer, but penetrates the inside of the pin during use. The elastic force of the annealed copper wire guarantees more reliable flexibility.

FIG. 2 is a side view of the main part showing an example of the attached state of the pin plug of the present invention. Reference numerals in the drawing are the same as those in FIG. 6, 4 is a pin plug of the present invention, 4a is its pin, 5 is a panel, and 6 is a printed circuit board.

In FIG. 2, when connecting the RF modulator 1 and the TV tuner 2 shown in FIG. 6 as a conventional example, the present invention is provided at a position facing the TV tuner 2 on the rear surface side of the RF modulator 1. It shows the case where the pin plug 4 is attached and directly connected to the jack 2a of the TV tuner 2. In the case of FIG. 2, the pin plug 4 fixed to the panel 5 is attached at a position where the pin 4a is fitted with the jack 2a of the TV tuner 2 arranged on the printed circuit board 6. Although such a mounting method is basically the same as the conventional method, it is different from the conventional method in that the restriction on the positioning is relaxed.

As described above, in the pin plug of the present invention, the pin plug 4 itself has a novel structure, and in particular, since the pin 4a is flexibly attached to the pin plug 4, the pin plug 4 is more accurate than the conventional pin plug. The restrictions on the above are alleviated, and even if a high-frequency device or pin plug with the same precision as before, a panel, a printed circuit board, etc. is used, it is possible to reliably connect it to the jack of the other high-frequency device. Therefore, mechanically, the same accuracy as the conventional one is sufficient, and the disadvantage of cost increase is avoided, and a stable and highly reliable pin plug is realized in the electrical circuit configuration. ..

[0014]

【Example】

 Next, the pin plug of the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram showing an embodiment of the pin plug of the present invention, (1) is a front view, (2) is a partially cutaway side view, and (3) is a rear view. In the figure, 11 is a pin, 11a is a flange portion, 11b is a bent portion, 12 is an insulating washer, 13 is an insulator, 14 is an outer contact, 14a is a protruding piece thereof, and 14b is an outer contact of a jack. 15a is a shell, 15a is a caulking part on the outer contact side (front side), 15b is a caulking part on the insulator side (rear side), 15c is a receiving part for the outer contact 14, and 16 is a soft copper wire. Indicates.

As shown in FIGS. 1 (1) to (3), the pin plug of the present invention has a shell 15 and a shell 15 in addition to the pin 11 having the same function as the conventional one, the outer contact 14, and the insulating washer 12. This is a configuration in which an insulator 13 is added. The shell 15 is made of a conductive material and has a substantially hollow cylindrical shape having a hole penetrating from the jack insertion side (front side) to the back side, and includes the outer contact 14, the insulating washer 12, and the insulator 13. To store.

In the pin plug of the present invention, in order to flexibly attach the pin 11 to the pin plug body, the size of the hole of the shell 15 in the radial direction, that is, the size of the hole where the insulating washer 12 is housed is set. The size of the radial direction is such that, when the outer washer 14 is inserted after the insulating washer 12 is inserted, the insulating washer 12 does not come into direct contact with other members around the gap when assembled. Has been sized. At the same time, the shell 15 is dimensioned such that the hole in which a part of the insulator 13 is housed has a gap portion that does not come into contact with the insulating washer 12 in the jack insertion direction.

At the time of assembly, after inserting the pin 11 fixed to the insulating washer 12 from the left side (front side) of the shell 15 shown in FIG. 1 (2), that is, from the jack insertion side, the outer contact 14 is inserted. Then, the outer contact 14 is firmly fixed to the shell 15 by caulking the caulking portion 15 a on the outer contact side of the shell 15. When the outer contact 14 is fixed by caulking, the insulating washer 12 to which the pin 11 is fixed is formed by the protruding piece 14a of the outer contact 14 and the receiving portion 15c of the outer contact 14 provided in the hole of the shell 15. It is retained in the hole of the shell 15 with a gap in the open space.

Next, the insulator 13 is inserted from the right side of FIG. 1 (2), that is, from the back side until it comes into contact with the receiving portion of the shell 15 (15d in FIG. 5 described later). Similarly, by crimping the crimped portion 15b, the insulator 13 is firmly fixed to the shell 15. When the insulator 13 is fixed by crimping, the insulator 13 is held in the hole of the shell 15 in a state where the insulator 13 and the insulating washer 12 have a gap portion in the space formed in the jack insertion direction.

With the above-described structure, the outer contact 14 and the insulator 13 are firmly fixed in the hole of the shell 15, but the insulating washer 12 to which the pin 11 is fixed has a radial direction. Then, the shell 11 is accommodated in a state in which a gap with the inside of the hole of the shell 15 and a gap with the insulator 13 are provided in the jack insertion direction, so that the pin 11 having a flexible structure can be obtained. When using the pin plug, the annealed copper wire 16 is inserted into the hollow part of the pin 11 from the back side, the insertion end is fixed to the tip part of the pin 11 by soldering, and the other end is also soldered to a printed circuit board or the like. Since it is fixed by attachment, the elastic force of the annealed copper wire 16 also functions in the flexible structure of the pin 11.

FIG. 3 is a view showing a detailed embodiment of the insulator 13 of the pin plug of the present invention shown in FIG. 1, (1) is a partially cutaway side view, and (2) is a front view. .. The reference numerals in the figure are the same as those in FIG. 1, 13a is a flange portion, and 13b is a hole portion into which a conductor is inserted.

As shown in FIGS. 3 (1) and 3 (2), the insulator 13 has a hole at the center thereof into which a conductor (the annealed copper wire 16 in FIG. 1) is inserted. Further, on the outer peripheral surface thereof, a flange portion 13a having a large size in the radial direction to be fitted in the hole portion on the back surface side of the shell 15 is formed. The insulator 13 functions to insulate the outer contact 14 from the conductor and prevent the conductor from short-circuiting even when the pin plug is fixed to the panel or the case.

FIG. 4 is a diagram showing a detailed embodiment of the outer contact 14 of the pin plug of the present invention shown in FIG. 1, where (1) is a front view and (2) is seen from 30 ° from above. Left side view, (3) is a top view, (4) is a right side view seen from 30 ° above, and (5) is a partially cutaway bottom view. Reference numerals in the figure are the same as those in FIG.

As shown in the front view of FIG. 4 (1), the outer contact 14 prevents the insulating washer 12 from falling off at the three protruding pieces 14a, and allows the insulating washer 12 to move flexibly. It also has the function of forming a space to secure the space.

FIG. 5 is a view showing a detailed embodiment of the shell 15 of the pin plug of the present invention shown in FIG. 1, (1) is a front view, (2) is a partially cutaway side view, 3) is a rear view. Reference numerals in the figure are the same as those in FIG. 1, and reference numeral 15d indicates a receiving portion of the insulator 13.

The shell 15 is made of a conductive member and has a hole penetrating from the left side (jack insertion side) to the right side (rear side) of FIG. 5, and the caulking portions 15a, 15a, 15b is formed, and in the middle of the hole, a receiving portion 15c that locks the outer contact 14 and a receiving portion 15d that locks the insulator 13 are formed. Other configurations are as described above.

[0026]

[Effect of the device]

 In the pin plug of this invention, the pin is configured to move flexibly with respect to the outer case or the like. Therefore, the conventional coaxial cable with pin plug is not required, the number of parts is reduced, cost can be reduced, and the connection state is strong, so the circuit configuration is also stable and the reliability is high. ..

Further, since there is less restriction on accuracy as compared with a connection method in which a conventional pin plug having pins fixed to an outer case or the like is directly fixed to the main body of a high frequency device and directly connected to another high frequency device. Many excellent effects can be obtained, such as avoiding cost increase.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a pin plug of the present invention.

FIG. 2 is a side view of an essential part showing an example of a mounted state of the pin plug of the present invention.

FIG. 3 shows the pin plug of the present invention shown in FIG.
It is a figure which shows a detailed one Example of the insulator 13.

FIG. 4 shows the pin plug of the present invention shown in FIG.
3 is a diagram showing a detailed example of the outer contact 14. FIG.

FIG. 5 shows the pin plug of the present invention shown in FIG.
It is a figure which shows one detailed example of the shell 15.

FIG. 6 is a perspective view of a main part for explaining an example of a connection state of two high-frequency devices having a conventional unit configuration.

[Explanation of symbols]

 11 pin 11a flange part 11b bent part 12 insulating washer 13 insulator 13a flange part 13b hole part 14 outer contact 14a protruding piece 14b contact part 15 shell 15a outer contact side caulking part 15b insulator side caulking part 14c outer part Part 15d Receiving part of insulator 13 16 Copper wire

Claims (1)

[Scope of utility model registration request] 1. A pin (11) and an outer contact (1
4) and an insulating washer (12), comprising a conductive member, having a substantially hollow cylindrical shape having a hole penetrating from the jack insertion side to the back side, the outer contact (14) and the insulating washer. (12) and an insulator (13) described later can be housed, and the radial size of the hole in which the insulating washer (12) is housed is such that the insulating washer (12) does not come into contact with the surrounding area. It is a size having a gap part, and is described later as an insulator (1
The hole (3) for accommodating a part of the shell (15) has a gap (15) with which the insulating washer (12) does not come into contact with the jack insertion direction, and the shell (15). From the back side of the pin (1
1) and an insulator (13) having a hole into which a conductor (16) to be connected is inserted, and a pin (a) fixed to the shell (15) from the jack insertion side to the insulating washer (12). 11) is inserted,
The outer contact (14) is fixed to the shell (15) while a part of the insulating washer (12) is pressed by the outer contact (14), and the outer contact (14) is fixed to the shell (15) from the back side. A pin plug, wherein an insulator (13) is inserted and fixed.