JP6587243B1 - Connection devices, plugs and sockets - Google Patents

Abstract

A connection device capable of electrically connecting multiple contacts without soldering is obtained. A first terminal that is electrically connected to a core wire of the cable, a conductive sleeve that is insulated from the first terminal, and a cable when the core wire is pressed against the first terminal. And a second terminal 10 that electrically connects the lead wire to the sleeve 4. [Selection] Figure 2

Description

  The present invention relates to a connection device, a plug, and a socket that perform electrical connection.

  As a conventional connector, there has been proposed a connector for connecting a coaxial lead wire and a shield conductor by crimping without using solder (see, for example, Patent Document 1). In the connector disclosed in Patent Document 1, the terminal and the lead wire are crimped by bending the plate-like member provided on the lead wire terminal of the connector, and the plate-like member provided on the shield wire terminal of the connector is used. The terminal and the shield conductor are crimped by bending.

JP 2004-55426 A

  In the connector disclosed in Patent Document 1, it is necessary to press the plate-like member at each of the two contact points, which is troublesome.

  The present invention has been made to solve the above-described problems, and provides a connection device, a plug, and a socket that can electrically connect multiple contacts easily without soldering.

The connection device according to the present invention is a connection device to which a core wire and a cable having a conductive wire different from the core wire are connected, the first terminal electrically connected to the core wire, and the first terminal An insulated conductive sleeve, and a second terminal that is in contact with the conductor when the core wire is pressed against the first terminal and electrically connects the conductor to the sleeve. Yes, and the sleeve has a cylindrical portion with an opening at a curved surface, said openings, when said cable is inserted into the cylindrical portion, visible the first terminal and the second terminal It is formed at the position .

  In the plug according to the present invention, the connection device is a plug, and includes a relay rod electrically connected to the first terminal and a chip electrically connected to the relay rod. is there.

  In the socket according to the present invention, the connecting device is a socket, and a first leaf spring electrically connected to the first terminal and a second electrically connected to the second terminal. Leaf springs.

  According to this invention, it has the 1st terminal which electrically connects the core wire of a cable, and the 2nd terminal in the position which contacts a conducting wire, when a core wire is pressed against a 1st terminal. Therefore, the electrodes can be simply connected to each other at each of the two contact points by simply inserting the cable into the connection device without soldering.

It is an external view which shows the example of 1 structure of the plug which concerns on Embodiment 1 of this invention. It is an external view which shows the state which removed the cap in the plug shown in FIG. FIG. 3 is an external view showing a configuration example when the plug shown in FIG. 2 is viewed from another direction. FIG. 4 is a cross-sectional view of the plug shown in FIG. 3. It is an enlarged view of the cylindrical part shown in FIG. It is an external appearance perspective view which shows typically the cylindrical part shown in FIG. It is an external appearance schematic diagram which shows one structural example of the cable attached to the plug which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the procedure which attaches a cable to the plug shown in FIG. It is a figure which shows an example of the procedure which attaches another cable to the plug shown in FIG. It is a schematic diagram which shows another structural example of the 2nd terminal shown in FIG. It is an external view which shows another structural example of the plug which concerns on Embodiment 1 of this invention. It is an external view which shows another structural example of the plug which concerns on Embodiment 1 of this invention. It is a figure which shows one structural example regarding the principal part of the plug which concerns on Embodiment 2 of this invention. It is an external appearance schematic diagram which shows one structural example of the strand wire cable connected to the plug demonstrated with reference to FIG. It is a figure which shows another structural example regarding the principal part of the plug which concerns on Embodiment 2 of this invention. It is a figure which shows another structural example regarding the principal part of the plug which concerns on Embodiment 2 of this invention. It is an external view which shows the example of 1 structure of the socket which concerns on Embodiment 3 of this invention. It is sectional drawing of the socket shown in FIG. It is an external view which shows the state which removed the cover from the socket shown in FIG. It is an external view which shows the state which removed the cover and the cap from the socket shown in FIG. It is a figure which shows another structural example of the cap shown in FIG. It is a figure which shows an example of the procedure which attaches the cap shown in FIG. 21 to a plug main body. It is a cross-sectional schematic diagram which shows another structural example of the cap shown in FIG. It is a figure for demonstrating another structural example of the sleeve shown in FIG. It is a figure which shows an example of the procedure which attaches the cap shown in FIG. 23 to the plug main body shown in FIG.

Embodiment 1 FIG.
The configuration of the connection device according to the first embodiment will be described. In the first embodiment, a case where the connecting device is a plug will be described. The first embodiment will be described in the case where terminals can be electrically connected without soldering. FIG. 1 is an external view showing a configuration example of a plug according to Embodiment 1 of the present invention. FIG. 2 is an external view showing a state in which the cap is removed from the plug shown in FIG.

  The plug 1 includes a chip 3 that is electrically connected to a cable core wire (not shown), a sleeve 4 that is electrically connected to a conductor different from the cable core wire, and a cap 5 that covers a part of the sleeve 4. Have An insulating ring 6 is provided between the tip 3 and the sleeve 4. The material of the chip 3, the sleeve 4 and the cap 5 is a conductive metal. The material of the insulating ring 6 is, for example, resin. The plug 1 shown in FIG. 1 is a plug whose diameter of the sleeve 4 is 6.3 mm, for example.

  Although not shown in the drawing, a first screw having a screw thread and a screw groove formed in a spiral shape is provided on the inner peripheral surface of the cap 5. As shown in FIG. 2, the sleeve 4 includes a cylindrical portion 13 provided with a second screw 14 corresponding to the first screw. The plug 1 of FIG. 1 shows a state in which the second screw 14 is engaged with the first screw and the cap 5 is attached to the sleeve 4. The opening 7 shown in FIG. 2 is covered with the cap 5 in a state where the cap 5 is attached to the sleeve 4 as shown in FIG.

  The curved surface of the cylindrical portion 13 is provided with an opening 7 and a screw hole 8 for fastening the cable with a screw 20. The plug 1 has a protruding first terminal 9 for electrically connecting the core wire to the chip 3 and a protruding second terminal 10 for electrically connecting a conductive wire different from the core wire of the cable to the sleeve 4. And having. The first terminal 9 is electrically connected to the core wire of the cable without soldering. The second terminal 10 is electrically connected to the cable conductor without soldering. 2 shows the case where the insulating ring 40 is attached to the cylindrical portion 13 in order to cope with the difference in the thickness of the cable attached to the plug 1, but the insulating ring 40 may not be provided. .

  FIG. 3 is an external view showing a configuration example when the plug shown in FIG. 2 is viewed from another direction. 4 is a cross-sectional view of the plug shown in FIG. In FIG. 4, the inner peripheral surface of the cylindrical portion 13 and the second terminal 10 are shown in the figure for the sake of explanation. As shown in FIG. 4, the first terminal 9 is electrically connected to the chip 3 via a conductive relay rod 11. The first terminal 9 is located on the central axis of the relay rod 11. A cable insertion port 12 into which a cable is inserted into the cylindrical portion 13 is provided at the end of the cylindrical portion 13 in the X-axis arrow direction.

  FIG. 5 is an enlarged view of the cylindrical portion shown in FIG. The tip position P2 of the second terminal 10 opposite to the support position P1 connected to the sleeve 4 is closer to the center axis indicated by the broken line than the support position P1 in the radial direction of the sleeve 4 and the first terminal P2. It is located outside the terminal 9. The second terminal 10 has a plurality of refracting portions 71 and 72 provided from the support position P1 to the tip position P2 and a plate-like portion 73 parallel to the central axis from the tip position P2. The material of the second terminal 10 is, for example, brass.

  6 is an external perspective view schematically showing the cylindrical portion shown in FIG. The insulating ring 40 is made of an insulator having a diameter r2, and has a through hole 41 having a diameter r3. Diameter r2> diameter r3. r2 is, for example, 8 mm. r3 is, for example, 4 mm. When the diameter of the cable insertion port 12 of the cylindrical portion 13 is r1, r1> r2. When the diameter of the cable is equal to the diameter r1 of the cable insertion opening 12 of the cylindrical portion 13, it is not necessary to attach the insulating ring 40 to the cylindrical portion 13. A cable having a diameter equal to r1 is inserted into the cylindrical portion 13 as it is. On the other hand, when the cable diameter is r3, the insulating ring 40 is attached to the cylindrical portion 13. In this case, the cable having a diameter of r3 is inserted into the cylindrical portion 13 through the insulating ring 40. Thus, even if the diameter of the cable is smaller than the diameter r1 of the cable insertion opening 12 of the cylindrical portion 13, the gap between the cable and the sleeve 4 can be reduced by mounting the insulating ring 40 on the cylindrical portion 13. . As a result, it is possible to suppress a cable having a small diameter from being pulled out due to vibration or the like during use of the plug 1.

  Next, a method for attaching a cable to the plug 1 according to the first embodiment will be described. First, the configuration of the cable will be described. FIG. 7 is a schematic external view showing a configuration example of a cable attached to the plug according to Embodiment 1 of the present invention. The cable shown in FIG. 7 is a stranded cable 30.

  As shown in FIG. 7, the stranded cable 30 includes a core wire 31 and a conductive wire 33 different from the core wire 31. The core wire 31 has a configuration in which a plurality of thin single wires are twisted together. The core wire 31 is covered with an insulator 32. Conductive wires 33 are provided in a net shape on the outer periphery of the insulator 32. The conducting wire 33 is covered with a protective film 34. The material of the core wire 31 and the conducting wire 33 is, for example, copper. The material of the insulator 32 is, for example, polyethylene. The material of the protective film 34 is, for example, vinyl.

  FIG. 8 is a diagram illustrating an example of a procedure for attaching a cable to the plug illustrated in FIG. 2. Here, it is assumed that the diameter of the stranded cable 30a is equivalent to r1. Moreover, in FIG. 8, the cross section of the front-end | tip part of the strand wire cable 30a is typically represented for description. Actually, the stranded cable 30a is exposed only on the cut surface, and the other portion than the cut surface is covered with the protective film 34.

  The user passes the cap 5 shown in FIG. 1 through the stranded cable 30a. Subsequently, the user inserts the stranded cable 30a into the cable insertion port 12 of the cylindrical portion 13 as shown in FIG. Thereafter, the user pushes the stranded cable 30 a into the sleeve 4 as shown in FIG. 8B while confirming the positions of the first terminal 9 and the second terminal 10 through the opening 7. When the core wire 31 is pressed against the first terminal 9, the twisted wire of the core wire 31 is unwound and comes into contact with the first terminal 9 so as to cling to the first terminal 9. Further, when the core wire 31 is pressed against the first terminal 9, the second terminal 10 slides between the insulator 32 and the conducting wire 33 and comes into contact with the conducting wire 33. Thereafter, the user fastens the screw 20 to fix the stranded cable 30a to the plug 1, and attaches the cap 5 shown in FIG.

  In this manner, the user can bring the core wire 31 into contact with the first terminal 9 and the lead wire 33 into contact with the second terminal 10 while checking the position of each terminal from the opening 7. Therefore, the core wire 31 and the 1st terminal 9 can be reliably electrically connected, and the conducting wire 33 and the 2nd terminal 10 can be electrically connected reliably, without soldering. Further, since the second terminal 10 is provided with the plate-like portion 73 on the distal end side, a sufficient contact area with the conductive wire 33 can be obtained as compared with the protruding shape. Therefore, the contact resistance between the conducting wire 33 and the second terminal 10 can be reduced. Moreover, since the opening 7 is covered with the cap 5, the first terminal 9 is electrically shielded, and electrical noise can be prevented from occurring in the core wire 31.

  FIG. 9 is a diagram illustrating an example of a procedure for attaching another cable to the plug illustrated in FIG. 2. Here, it is assumed that the diameter of the stranded wire cable 30b is equal to r3. Moreover, in FIG. 9, the cross section of the front-end | tip part of the strand wire cable 30b is typically represented for description. Actually, the stranded cable 30b is exposed only on the cut surface, and the other portion than the cut surface is covered with the protective film 34.

  The user passes the cap 5 shown in FIG. 1 through the stranded cable 30b. Subsequently, the user attaches the insulating ring 40 to the cylindrical portion 13 with the screw 20 loosened. The user inserts the stranded cable 30b into the through hole 41 of the insulating ring 40 as shown in FIG. Thereafter, the user pushes the stranded cable 30 b into the sleeve 4 as shown in FIG. 9B while confirming the positions of the first terminal 9 and the second terminal 10 through the opening 7. When the core wire 31 is pressed against the first terminal 9, the twisted wire of the core wire 31 is unwound and comes into contact with the first terminal 9 so as to cling to the first terminal 9. Further, when the core wire 31 is pressed against the first terminal 9, the second terminal 10 slides between the insulator 32 and the conducting wire 33 and comes into contact with the conducting wire 33. Thereafter, the user fastens the screw 20 to fix the stranded cable 30b to the plug 1, and attaches the cap 5 shown in FIG.

  In this manner, as in the case illustrated in FIG. 8, the user can reliably electrically connect the core wire 31 and the first terminal 9 without soldering while confirming the position of each terminal from the opening 7. It is possible to connect the lead wire 33 and the second terminal 10 reliably and electrically. In the case of the stranded cable 30b, the diameter is smaller than the diameter r1 of the inner circumferential circle of the cylindrical portion 13. Therefore, when the second terminal 10 slides between the insulator 32 and the conductive wire 33, the downward force received from the conductive wire 33 is larger than that shown in FIG. 8. Here, the second terminal 10 has a configuration including two stages of refraction portions 71 and 72. Therefore, even if the downward force is large, the second terminal 10 is easily changed in direction by the two-stage refracting portions 71 and 72, and smoothly slides between the insulator 32 and the conductive wire 33. As a result, the conducting wire 33 and the second terminal 10 are sufficiently in contact with each other, and good conduction can be obtained between the electrodes.

  In the first embodiment, the case where the material of the second terminal 10 is brass has been described. However, the material of the second terminal 10 is not limited to brass. As described with reference to FIGS. 8 and 9, the second terminal 10 receives a force from the insulator 32 and the conductor 33 when sliding between the insulator 32 and the conductor 33. Therefore, the material of the second terminal 10 may be a metal other than brass as long as it has strength and is flexible enough to be not broken.

  The second terminal 10 is not limited to the configuration described with reference to FIGS. FIG. 10 is a schematic diagram illustrating another configuration example of the second terminal illustrated in FIG. 2. The second terminal 10a shown in FIG. 10 does not have the refracting portions 71 and 72 shown in FIG. 5, but has a configuration in which a plate-like member is formed by curving. Even with the second terminal 10a shown in FIG. 10, the same effect as the second terminal 10 shown in FIG. 2 can be obtained.

  The first embodiment is not limited to the type of plug described with reference to FIGS. 1 to 6 and can be applied to various plugs. 11 and 12 are external views showing another configuration example of the plug according to Embodiment 1 of the present invention. FIG. 11 shows a case where the plug according to the first embodiment is a 3.5 mm plug. The 3.5 mm plug means a plug having a sleeve diameter of 3.5 mm. FIG. 12 shows a case where the plug according to the first embodiment is an RCA (registered trademark) plug. The plug shown in FIGS. 11 and 12 has the same configuration as the plug described above because the configuration of the portion covered with the cap 5 is omitted.

  A plug 1a shown in FIG. 11 includes a tip 3a, a sleeve 4d, and an insulating ring 6a. The insulating ring 6a electrically insulates the chip 3a from the sleeve 4d. The chip 3a is connected to the first terminal 9 shown in FIG. 2, and the sleeve 4d is connected to the second terminal 10 shown in FIG. The plug 1b shown in FIG. 12 has a chip 3b and a sleeve 4e. The chip 3b and the sleeve 4e are electrically insulated by an insulator not shown. The sleeve 4e has a slit 45 formed in a cylindrical shape. In the configuration example shown in FIG. 12, four slits 45 are formed in the sleeve 4e. The chip 3b is connected to the first terminal 9 shown in FIG. 2, and the sleeve 4e is connected to the second terminal 10 shown in FIG.

  In the first embodiment, the cable connected to the connection device is a stranded cable, but the cable is not limited to a stranded cable. The cable may be a coaxial cable.

  The plug 1 according to the first embodiment electrically connects the chip 3 connected to the core wire 31 via the relay rod 11, the conductive sleeve 4 insulated from the relay rod 11, and the core wire 31 to the chip. It has the 1st terminal 9 and the 2nd terminal 10 which connects the conducting wire 33 to the sleeve 4. FIG. The second terminal 10 is in a position in contact with the conducting wire 33 when the core wire 31 is pressed against the first terminal 9. According to the first embodiment, the electrodes can be simply connected to each other at the two contact points by simply inserting the cable into the plug 1 and without soldering.

  In the first embodiment, the opening 7 is provided on the curved surface of the cylindrical portion 13 of the sleeve 4. In this case, the user can bring the core wire 31 into contact with the first terminal 9 and the lead wire 33 into contact with the second terminal 10 while checking the position of each terminal from the opening 7. In the first embodiment, the opening 7 provided on the curved surface of the cylindrical portion 13 is configured to be covered with the cap 5 while the cap 5 is attached to the sleeve 4. Since the opening 7 is covered with the cap 5 after the stranded cable 30 is attached to the plug 1, it is possible to prevent electrical noise from occurring in the core wire 31. Since the cap 5 is fixed to the sleeve 4 with a screw and the screw 20 for fixing the cable is covered with the cap 5, the screw 20 is difficult to loosen. Therefore, even if a large vibration is repeated during use of the plug 1, the cable is difficult to be disconnected from the plug 1.

  In the first embodiment, the tip position P2 of the second terminal 10 is positioned closer to the central axis than the support position P1 and outside the first terminal 9 in the radial direction of the sleeve 4. It is. In this case, when the position of the first terminal 9 coincides with the position of the core wire 31 of the stranded cable 30, the conducting wire 33 positioned outside the core wire 31 with respect to the central axis automatically contacts the second terminal 10. It becomes easy to do.

Embodiment 2. FIG.
In the connection device according to the second embodiment, the plug 1 described in the first embodiment has a plurality of first terminals. In the second embodiment, differences from the first embodiment will be described in detail, and a detailed description of the same configuration as that described in the first embodiment will be omitted.

  FIG. 13 is a diagram showing a configuration example relating to the main part of the plug according to Embodiment 2 of the present invention. The plug 1 shown in FIG. 1 has two first terminals 9a-1 and 9a-2 and one second terminal 10. The first terminals 9a-1 and 9a-2 are supported by the sleeve 4a via an insulator (not shown). The first terminals 9a-1 and 9a-2 are electrically insulated from each other. The distance from the base of the sleeve 4a to the tip position of the first terminal 9a-1 is x1, the distance from the base of the sleeve 4a to the tip position of the first terminal 9a-2 is x2, and the distance from the base of the sleeve 4a is The distance to the tip position of the second terminal 10 is x3. The distances x1, x2 and x3 are different from each other. That is, the tip positions of the first terminal 9a-1, the first terminal 9a-2, and the second terminal 10 are different from each other in the axial direction of the sleeve 4a. Distance x1 <distance x2 <distance x3. A similar effect can be obtained even when the relationship of distance x2 <distance x1 <distance x3 is satisfied.

  Regarding the radial direction of the sleeve 4a, in the configuration example shown in FIG. 13, the first terminal 9a-1 is displaced from the central axis CL, but the positions of the first terminal 9a-1 and the first terminal 9a-2 are different. Is not limited to the diagram of the configuration example, and the first terminal 9a-1 may be on the central axis CL.

  FIG. 14 is a schematic external view showing a configuration example of a stranded cable connected to the plug shown in FIG. The stranded cable 50 is a tripolar cable. The stranded cable 50 includes a core wire 51, a core wire 52, and a conductive wire 53. The core wire 51 and the core wire 52 have a configuration in which a plurality of thin conductive single wires are twisted together. The core wire 51 is covered with an insulator 54, and the core wire 52 is covered with an insulator 55. The outer peripheries of the insulators 54 and 55 are covered with a conductive net-like conductive wire 53a. A net-like conducting wire 53a is twisted to form a conducting wire 53. The outer periphery of the net-like conductive wire 53 a is covered with a protective film 56. The material of the core wire 51, the core wire 52, and the conducting wire 53 is, for example, copper. The material of the insulators 54 and 55 is, for example, polyethylene. The material of the protective film 56 is, for example, vinyl.

  The distance from the end of the protective coating 56 to the tip position of the core wire 51 is x4, the distance from the end of the protective coating 56 to the tip position of the core wire 52 is x5, and the distance from the end of the protective coating 56 to the tip position of the conductor 53 X6. As shown in FIG. 14, the tip positions of the core wire 51, the core wire 52, and the conducting wire 53 are different from each other in the axial direction (X-axis arrow direction) of the stranded cable 50. Distance x4> distance x5> distance x6.

  A case where the user connects the stranded cable 50 shown in FIG. 14 to the plug described with reference to FIG. 13 will be described. While viewing the inside of the cylindrical portion 13 from the opening 7 shown in FIG. 2, the user aligns the tip of the core wire 51 with the position of the first terminal 9a-1, and the user connects the stranded cable 50 to the cylindrical portion 13 of the plug. insert. Then, the user keeps the core wire 51 in contact with the first terminal 9a-1 by clinging the stranded wire of the core wire 51 to the first terminal 9a-1. Subsequently, while looking at the inside of the cylindrical portion 13 from the opening 7, the user clings the stranded wire of the core wire 52 to the first terminal 9a-2 to bring the core wire 52 into contact with the first terminal 9a-2. Thereafter, while viewing the inside of the cylindrical portion 13 from the opening 7, the user clings the stranded wire of the conducting wire 53 to the second terminal 10 and brings the conducting wire 53 into contact with the second terminal 10. In this way, the first terminal 9a-1 is electrically connected to the core wire 51, the first terminal 9a-2 is electrically connected to the core wire 52, and the second terminal 10 is electrically connected to the lead wire 53. Connected to. This is because the relationship of distance x1 <distance x2 <distance x3 and the relationship of distance x4> distance x5> distance x6 are satisfied as described with reference to FIGS.

  In the first embodiment, the case of the two-pole stranded cable 30 has been described. However, in the plug of the second embodiment, a three-pole stranded cable is used as described with reference to FIGS. Simple and reliable connection is possible.

<Modification>
Although the case where the plug of Embodiment 1 has a plurality of first terminals has been described with reference to FIGS. 13 and 14, the plug having three or more terminals is not limited to the configuration shown in FIG. 13. For example, a plurality of second terminals may be provided on the plug. 15 and 16 are diagrams showing another configuration example relating to the main part of the plug according to Embodiment 2 of the present invention. 15 and 16 show a configuration example of the second terminal in the second embodiment. The configuration shown in FIGS. 15 and 16 is a case where the cable to be connected is a coaxial cable.

  As shown in FIG. 15, the sleeve 4b has two second terminals 10b and 10c. The second terminals 10b and 10c are electrically insulated from each other. The tip positions of the second terminals 10b and 10c are different from each other in the radial direction of the sleeve 4b. The tip position of the second terminal 10b is separated from the central axis indicated by the broken line by a distance r4. The tip position of the second terminal 10c is separated from the central axis indicated by the broken line by a distance r5. The distance r4> the distance r5.

  The plug described with reference to FIG. 15 can be used for a three-pole coaxial cable provided with two layers of different conductors concentrically around a core wire. For example, of the two conductor layers, the inner conductor layer is connected to the second terminal 10c, and the outer conductor layer is connected to the second terminal 10b.

  Next, the configuration of the plug shown in FIG. 16 will be described. The sleeve 4c has two second terminals 10b and 10d. The second terminals 10b and 10d are electrically insulated from each other. As shown in FIG. 16, the second terminal 10 d is a linear plate-like body parallel to the central axis direction (X-axis arrow direction) indicated by a broken line. The tip positions of the second terminals 10b and 10d are different from each other in the radial direction of the sleeve 4c. The tip position of the second terminal 10b is separated from the central axis indicated by the broken line by a distance r4. The tip position of the second terminal 10d is separated from the central axis indicated by the broken line by a distance r6. The distance r6> the distance r4.

  The plug described with reference to FIG. 16 can also be used for a three-pole coaxial cable. For example, in a three-pole coaxial cable in which two layers of different concentric conductors are provided, of the two layers, the inner conductor layer is connected to the second terminal 10b, and the outer conductor layer is the second conductor layer. Is connected to the terminal 10d.

  In the first embodiment, the case of a two-pole coaxial cable has been described. However, in the plug of the second embodiment, a three-pole coaxial cable can be connected as described with reference to FIGS. 15 and 16. it can.

  In the plug according to the second embodiment, the case where the two first terminals 9 described in the first embodiment are provided with reference to FIGS. 13 and 14 is described. Three or more may be provided. Further, in the modification, the case where two second terminals 10 are provided in the plug has been described, but three or more second terminals 10 may be provided. According to the second embodiment, the electrodes can be electrically connected at each of the three or more contacts without soldering. A cable having three or more poles can be applied to the plug of the second embodiment.

Embodiment 3 FIG.
The configuration of the connection device according to the third embodiment will be described. In the third embodiment, a case where the connection device is a socket will be described. In the third embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  FIG. 17 is an external view showing a configuration example of a socket according to Embodiment 3 of the present invention. 18 is a cross-sectional view of the socket shown in FIG. FIG. 19 is an external view showing a state in which the cover is removed from the socket shown in FIG. 20 is an external view showing a state where a cover and a cap are removed from the socket shown in FIG. In FIG. 18, the second terminal 10 of the cylindrical portion 13 and the first screw 15 formed on the inner peripheral surface of the cap 5 are shown in the figure for explanation.

  As shown in FIGS. 17 and 18, the socket 2 includes a first terminal 9, a sleeve 4, a second terminal 10, a cap 5, a first leaf spring 22, and a second leaf spring 23. And a cover 24 that covers the first plate spring 22 and the second plate spring 23. The first leaf spring 22 is electrically connected to the first terminal 9 through the relay rod 11a. The sleeve 4 includes a cylindrical portion 13 and a conductor portion 26 that covers the relay rod 11a. The second leaf spring 23 is electrically connected to the sleeve 4 via the conductor portion 26. The first leaf spring 22 is insulated from the second leaf spring 23 by an insulating portion 25.

  As shown in FIGS. 17 and 18, the cover 24 is provided with a plug insertion port 29 into which a plug is inserted. As shown in FIG. 18, a third screw 27 is formed on the inner peripheral surface of the cover 24. A fourth screw 28 corresponding to the third screw 27 is formed on the outer peripheral surface of the conductor portion 26. The cover 24 is fixed to the sleeve 4 by the third screw 27 being engaged with the fourth screw 28.

  A case where the user connects the plug 1 described in the first embodiment to the socket 2 of the third embodiment will be described with reference to FIGS. 17 and 18. When the user inserts the plug 1 from the plug insertion port 29 of the socket 2, the tip 3 of the plug 1 comes into contact with the first leaf spring 22, and the sleeve 4 of the plug 1 comes into contact with the second leaf spring 23. As a result, the chip 3 of the plug 1 is electrically connected to the first leaf spring 22, and the sleeve 4 of the plug 1 is electrically connected to the second leaf spring 23.

  The socket 2 according to the third embodiment includes a first terminal 9 electrically connected to the cable core, a conductive sleeve 4 insulated from the first terminal 9, and a cable lead to the sleeve 4. A second terminal 10 to be connected, a first leaf spring 22 and a second leaf spring 23 are provided. The first leaf spring 22 is electrically connected to the first terminal 9, and the second leaf spring 23 is electrically connected to the second terminal 10. The second terminal 10 is in a position in contact with the conducting wire when the core wire is pressed against the first terminal 9. According to the third embodiment, the electrodes can be simply connected to each other at the two contact points by simply inserting the cable into the socket 2 and without soldering.

  In the third embodiment, the configuration of the socket has been described based on the connection device described in the first embodiment. However, even if the connection device described in the second embodiment is applied to the socket of the third embodiment. Good.

  In the first to third embodiments described above, the case where the cap 5 is fixed to the connection device main body with a screw has been described. However, the fixing means is not limited to a screw. In the following, an example of a lock structure using fixing means other than screws will be described in the case of the plug of the first embodiment, but it may be the case of the connection device described in the second and third embodiments. FIG. 21 is a diagram illustrating another configuration example of the cap illustrated in FIG. 1. FIG. 21A is an external view of the cap, and FIG. 21B is a schematic sectional view of the cap.

  In the cap 5 shown in FIG. 21A, if the opposite side of the cable insertion port 62 is the tip side of the cap 5, a slit 61 is formed on the tip side of the cap 5. In the configuration example shown in FIG. 21A, four slits 61 are formed. Further, as shown in FIG. 21B, a claw portion 63 that protrudes toward the center axis of the cap 5 is formed on the tip side of the cap 5. A first screw is not formed on the inner peripheral surface of the cap 5 shown in FIG.

  FIG. 22 is a diagram illustrating an example of a procedure for attaching the cap illustrated in FIG. 21 to the plug body. Although FIG. 22 shows a case where the stranded cable 30a is attached to the sleeve 4, illustration of a part of the cylindrical portion 13 and the cross-sectional structure of the stranded cable 30a is omitted. Further, as shown in FIG. 22, when the cap 5 shown in FIG. 21 is used, the second screw 14 shown in FIG. 2 may not be provided in the cylindrical portion 13.

  After the user attaches the stranded cable 30a to the plug body, the cap 5 is moved in the direction of the arrow in FIG. The claw 63 at the tip of the cap 5 contacts the annular protrusion 46 of the sleeve 4. At this time, since the slit 61 shown in FIG. 21A is provided at the tip of the cap 5, as shown in FIG. 22B, the tip of the cap 5 extends in the radial direction with respect to the central axis. spread. When the user further moves the cap 5, the claw portion 63 passes through the annular protrusion 46, and the diameter on the tip side of the cap 5 returns to the original size. As a result, as shown in FIG. 22C, the claw portion 63 is caught by the annular protrusion 46, and the cap 5 is difficult to be removed from the plug body.

  Subsequently, another example of the fixing means will be described. FIG. 23 is a schematic cross-sectional view illustrating another configuration example of the cap illustrated in FIG. 1. In the cap 5 shown in FIG. 23, if the opposite side of the cable insertion port 62 is the tip side of the cap 5, a groove 64 is formed on the tip side of the cap 5. The groove 64 is formed along the inner periphery of the cap 5. The first screw is not formed on the inner peripheral surface of the cap 5 shown in FIG.

  FIG. 24 is a view for explaining another configuration example of the sleeve shown in FIG. FIG. 24A is a cross-sectional view showing one configuration example of the plug, and FIG. 24B is an enlarged schematic view of the fixing portion shown in FIG. As shown in FIG. 24A, the annular protrusion 46 of the sleeve 4 is provided with a fixing portion 80 that fixes the cap 5. In FIG. 24A, illustration of the cross-sectional structure of the fixing portion 80 is omitted. The second screw 14 shown in FIG. 2 is not formed on the cylindrical portion 13 of the sleeve 4 shown in FIG. In the configuration example shown in FIG. 24A, one fixing unit 80 is provided, but a plurality of fixing units 80 may be provided.

  As shown in FIG. 24B, the fixing unit 80 includes a pin 81, a spring 82, and a cylindrical body 83. A spring 82 is provided inside the cylindrical body 83. An opening 84 for exposing a part of the pin 81 is provided on the upper surface of the cylindrical body 83. A pin 81 is attached to the upper side of the spring 82. The pin 81 is pushed in the direction of the Z-axis arrow by the elastic force of the spring 82 to maintain the position in the Z-axis direction. When the pin 81 is pushed in the direction opposite to the Z-axis arrow, the spring 82 contracts and the pin 81 is accommodated in the cylindrical body 83. When the force that pushes the pin 81 in the direction opposite to the Z-axis arrow disappears, the pin 81 protrudes above the upper surface of the cylindrical body 83 by the elastic force of the spring 82 and maintains the original state.

  FIG. 25 is a diagram showing an example of a procedure for attaching the cap shown in FIG. 23 to the plug body shown in FIG. FIG. 25 shows a case where the stranded cable 30a is attached to the sleeve 4. However, the cross-sectional structure of a part of the cylindrical portion 13, the stranded wire 30a and the fixing portion 80 is not shown in the drawing.

  After the user attaches the stranded cable 30a to the plug body, the cap 5 is moved in the direction of the arrow in FIG. The tip of the cap 5 hits the pin 81 of the fixing portion 80. When the user pushes the cap 5 in the direction opposite to the X-axis arrow, the pin 81 is pushed by the cap 5 as shown in FIG. It fits inside the cylindrical body 83 shown in FIG. Thereafter, when the user further moves the cap 5, the pin 81 protrudes from the cylindrical body 83 into the groove 64 of the cap 5 by the elastic force of the spring 82, as shown in FIG. The pin 81 protruding into the groove 64 is pushed against the cap 5 in the Z-axis arrow direction by the elastic force of the spring 82. As a result, as shown in FIG. 25C, the pin 81 is caught in the groove 64, and the cap 5 is difficult to be removed from the plug body.

  Although the example of fixing means other than a screw has been described with reference to FIGS. 21 to 25, the fixing means for the cap 5 to the connection device main body includes two or more fixing means including a case of screws. You may combine.

  1, 1a, 1b plug, 2 socket, 3, 3a, 3b tip, 4, 4a to 4e sleeve, 5 cap, 6, 6a insulating ring, 7 opening, 8 screw hole, 9, 9a-1, 9a-2 1 terminal, 10, 10a to 10d second terminal, 11, 11a relay rod, 12 cable insertion port, 13 cylindrical portion, 14 second screw, 15 first screw, 20 screw, 22 first leaf spring , 23 2nd leaf spring, 24 cover, 25 insulation part, 26 conductor part, 27 3rd screw, 28 4th screw, 29 plug insertion port, 30, 30a, 30b stranded cable, 31 core wire, 32 insulation Body, 33 Conductor, 34 Protective film, 40 Insulating ring, 41 Through hole, 45 Slit, 46 Ring protrusion, 50 Stranded cable, 51, 52 Core wire, 53, 53a Conductor, 54, 55 Edge, 56 Protective coating, 61 Slit, 62 Cable insertion port, 63 Claw part, 64 Groove, 71 Refraction part, 73 Plate part, 80 Fixed part, 81 Pin, 82 Spring, 83 Cylinder, 84 Opening, CL center Axis, P1 support position, P2 tip position.

Claims (10)

A connection device to which a cable having a conductor wire different from the core wire and the core wire is connected,
A first terminal electrically connected to the core wire;
A conductive sleeve insulated from the first terminal;
A second terminal that is in a position in contact with the conductor when the core wire is pressed against the first terminal and electrically connects the conductor to the sleeve;
I have a,
The sleeve has a cylindrical portion provided with an opening in a curved surface,
The opening is formed at a position where the first terminal and the second terminal can be seen when the cable is inserted into the cylindrical portion.
Connected device. A cap that covers the outer periphery of the cylindrical portion;
In a state in which the cap is attached to the sleeve, a structure in which the opening is covered by the cap, the connection device according to claim 1. The cap is provided with a first screw on the inner peripheral surface,
The cylindrical portion is provided with a second screw corresponding to the first screw,
The connection device according to claim 2 , wherein the cap is configured to be attached to the sleeve by meshing the second screw with the first screw. The connection device according to any one of claims 1 to 3 , further comprising an insulating ring provided with a through hole having a diameter smaller than a diameter of a cable insertion port into which the cable is inserted into the cylindrical portion. In the second terminal, the tip position opposite to the support position where the second terminal is connected to the sleeve is a central axis of the first terminal in the radial direction of the sleeve relative to the support position. near, and located outside the said first terminal, the connection device according to any one of claims 1-4. The second terminal is
A plurality of refracting portions provided from the support position to the tip position;
A plate-like portion parallel to the central axis from the tip position;
The connection device according to claim 5 , comprising: A plurality of the first terminals;
The plurality of first terminals are electrically insulated from each other;
In the radial direction of the sleeve, the tip position of the plurality of first terminals are different from each other, the connection device according to any one of claims 1-6. A plurality of the first terminals;
The plurality of first terminals are electrically insulated from each other;
In the axial direction of the sleeve, the tip positions of the plurality of first terminals and the second terminal are different from each other, the connection device according to any one of claims 1-6. Connection device according to any one of claims 1 to 8 a plug,
A relay rod electrically connected to the first terminal;
A chip electrically connected to the relay rod;
Having a plug. Connection device according to any one of claims 1 to 8 a socket,
A first leaf spring electrically connected to the first terminal;
A second leaf spring electrically connected to the second terminal;
Having a socket.

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