JP2017097987A - connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To add a key without increasing the size of a connector, and prevent a wrong engaging of the connectors.SOLUTION: A connector 1 comprises: a plug 10 that comprises a plug housing main body 11, a cylindrical fitting part 12 attached to the plug housing main body 11 and a lock engaging nail 13 projected to the cylindrical fitting part 12, with a lock part key groove 14 provided to the lock engaging nail 13; and a cable jack 20 that comprises a cable jack main body 21, a hole state fitting part 22 provided in the cable jack main body 21 and fitting to the cylindrical fitting part 12, and a lock part comprising a lock hole part 25c engaging the lock engaging nail 13 in a state where the cylindrical fitting part 12 is fitted with the hole state fitting part 22 and a regulation groove 25A that has a shape corresponding to the lock engaging nail 13 and contacts the lock engaging nail 13 when the lock engaging nail 13 is inserted and regulates the movement in a lateral direction, with a lock part key 26 fitted to the lock part key groove 14 provided in the regulation groove 25A, the cable jack 20 to be fitted with the plug 10.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a connector that can prevent erroneous fitting with another connector.

  Conventionally, in order to prevent erroneous fitting between connectors, a key protrusion is provided on one connector, and a key groove that is fitted to the key protrusion is provided on the other to align the fitting. Yes.

  For example, the connector described in Patent Document 1 discloses a configuration in which a key 32A or a key groove 14A for preventing erroneous fitting is formed on a cylindrical fitting surface 12 of a housing with a mating connector.

JP 2004-178837 A

  However, there are many cases in which it is required to provide a large number of keys as the connector becomes complicated. Such a key is usually provided in the mold part of the outer wall of the connector housing, but the number of keys that can be provided is limited because the space of the mold part is limited.

  If an attempt is made to increase the number of keys, the thickness of each key becomes thin and the key strength cannot be maintained. Therefore, it is necessary to increase the space for providing the key by increasing the size of the connector. However, it is not preferable to increase the connector size in the present situation where a reduction in the size of the connector is required.

  The present invention has been made to solve such a problem, and it is an object of the present invention to provide a connector that can be additionally provided with a key without increasing the size of the connector and prevent erroneous fitting between the connectors. To do.

  In order to achieve the above object, the connector according to the present invention has a plug housing main body, a cylindrical fitting portion attached to the plug housing main body, a lock locking claw protruding from the cylindrical fitting portion, A plug provided with a key groove for a lock portion on the lock latching claw, a receptacle body, a hole-like fitting portion that is provided in the receptacle body and fits with the cylindrical fitting portion, and The lock engagement claw has a shape corresponding to the lock engagement claw and the lock engagement claw that engages the lock engagement claw in a state in which the tubular engagement portion and the hole engagement portion are engaged. A lock portion having a restriction groove into which the lock portion is inserted, a lock portion key that fits in the lock portion key groove is provided in the restriction groove, and a receptacle that fits the plug. Composed.

  With this configuration, the lock portion key provided in the restriction groove of the lock portion is provided in the lock engaging claw in a state where the cylindrical fitting portion and the hole-like fitting portion are fitted. Since it is fitted in the groove, it is possible to prevent erroneous fitting between the plug and the receptacle. In addition, since the lock engaging claw is provided with a key groove for the lock portion and a key for the lock portion is provided in the restriction groove, it is not necessary to newly provide a space for providing a key or a key groove in the plug housing main body and the receptacle main body. Therefore, the increase in connector size can be suppressed.

  In the connector having the above-described configuration, the key groove for the lock portion may be configured to be provided on one end side of both end portions in the lateral direction of the lock locking claw. With this configuration, it is possible to provide a key without increasing the size of the connector and prevent erroneous fitting between the connectors. In addition, by diversifying the key shapes, it is possible to meet more diverse key requests.

  In the connector configured as described above, the key groove for the lock portion may be configured to be provided at a substantially central portion in a lateral direction of the lock locking claw. With this configuration, it is possible to provide a key without increasing the size of the connector and prevent erroneous fitting between the connectors. In addition, by diversifying the key shapes, it is possible to meet more diverse key requests.

  In the connector configured as described above, the tubular fitting portion of the plug has a plurality of keys protruding on the outer wall surface, and the hole fitting portion of the receptacle has a plurality of groove-like shapes on the outer wall surface. A key groove may be provided, and the key and the key groove may be fitted in a state where the cylindrical fitting portion and the hole-like fitting portion are fitted. With this configuration, the number of combinations of keys and key grooves can be increased, and erroneous fitting can be prevented more reliably.

  According to the present invention, an additional key can be provided without increasing the size of the connector, and erroneous fitting between the connectors can be prevented.

It is a perspective view which shows the state which the connector which concerns on embodiment of this invention was fitted. It is a perspective view of the plug of the connector concerning an embodiment of the invention. It is the figure which looked at the plug of the connector which concerns on embodiment of this invention from each direction, Fig.3 (a) is a front view, FIG.3 (b) is a side view, FIG.3 (c) is a top view. It is a perspective view of the cable jack of the connector which concerns on embodiment of this invention. It is the figure which looked at the cable jack of the connector which concerns on embodiment of this invention from each direction, FIG.5 (a) is a front view, FIG.5 (b) is a side view, FIG.5 (c) is a top view. . It is a top view which shows the state which the connector which concerns on embodiment of this invention was fitted. FIG. 7A is a perspective view of a plug, and FIG. 7B is a perspective view of a cable jack, showing a modification of the connector according to the embodiment of the present invention. FIG. 8A is a perspective view of a plug, and FIG. 8B is a perspective view of a cable jack, which is a modification of the connector according to the embodiment of the present invention. It is a top view of the modification of the connector which concerns on this Embodiment.

  Hereinafter, the connector 1 according to the present embodiment will be described with reference to FIGS.

  FIG. 1 is a perspective view of the connector 1 in a state where the plug 10 and the cable jack 20 are fitted. A shield case 15 is attached to the plug housing body 11. In the present embodiment, the plug housing body 11 is made of a nylon resin, but other resins may be used. The shield case 15 is attached to the outer peripheral surface of the plug housing body 11 by bending a conductive metal plate. The shield case 15 is fixed to the printed wiring board by soldering.

  The cable jack 20 includes a cable jack main body 21 and a spring pressing piece 27 and is fitted to the plug housing main body 11. In this embodiment, the cable jack body 21 is made of PBT (polybutylene terephthalate) resin, but other resins may be used. A coaxial cable 30 is connected to the cable jack main body 21. A coaxial conductor 31 is provided at the center of the coaxial cable 30 to be electrically connected to the plug 10 side. The cable jack 20 constitutes a receptacle according to the present invention, and the cable jack main body 21 constitutes a receptacle main body according to the present invention.

  The plug 10 will be described in more detail with reference to FIGS. 2 is a perspective view of the plug 10, FIG. 3A is a front view of the plug 10 viewed from the fitting surface side, and FIG. 3B is a side view of the plug 10 viewed from one side. FIG. 3C is a top view of the plug 10 viewed from the top surface side.

  As shown in FIG. 2, the plug 10 includes a plug housing main body 11, a cylindrical fitting portion 12, and a lock locking claw 13. The plug housing main body 11 is a main body portion of the plug 10 and has a substantially rectangular parallelepiped shape, and a shield case 15 is attached to the outer periphery.

  The cylindrical fitting portion 12 is a cylindrical member attached to the side surface of the plug housing body 11, and is fitted to a hole-like fitting portion 22 of the cable jack 20, which will be described later, and the coaxial cable 30 is connected to the plug 10 side. It is designed to conduct. The cylindrical fitting portion 12 has a plurality of outer peripheral keys 16 on the outer peripheral surface, and a conductive body main body portion 17 on the inner side. The conductive body main body 17 includes an elongated pin-shaped center conductor 17A made of conductive metal, an insulator 17B made of insulating resin covering the outer periphery of the center conductor 17A, and an outer side made of conductive metal covering the outer periphery of the insulator 17B. And a conductor 17C.

  As shown in FIG. 3A, the cylindrical fitting portion 12 has one convex outer peripheral key 16A on each of the left and right sides of the outer periphery and four convex outer peripheral keys 16B on the lower surface side. Yes. The positions and number of the outer peripheral keys 16A and the outer peripheral keys 16B are not necessarily limited to this. The outer peripheral key 16A and the outer peripheral key 16B are adapted to fit into outer peripheral key grooves 28A and 28B of the cable jack 20 described later.

  As shown in FIG. 3B, the lock locking claw 13 protrudes from the cylindrical fitting portion 12, engages with a lock hole portion 25B of the cable jack 20 described later, and the plug 10 and the cable jack 20 The fitting state is locked.

  As shown in FIGS. 2 and 3 (c), the lock locking claw 13 is provided with a lock portion key groove 14 from the right end to the center in the lateral direction in FIG. ing. The lock portion key groove 14 is adapted to be fitted to a lock portion key 26 of the cable jack 20 described later. In addition, even if the lock engaging claw 13 is provided with the key groove 14 for the lock portion, the width of the base portion of the lock engaging claw 13 is not changed, so that the lock strength is not weakened.

  Next, the cable jack 20 will be described in more detail with reference to FIGS. 4 and 5. 4 is a perspective view of the cable jack 20, FIG. 5A is a front view of the cable jack 20 viewed from the fitting surface side, and FIG. 5B is a view of the cable jack 20 viewed from one side surface side. FIG. 5C is a top view of the cable jack 20 viewed from the top surface side.

  The cable jack 20 includes a cable jack main body 21, a hole-like fitting portion 22, a lock portion 25, and a spring pressing piece 27, and is connected to the coaxial cable 30.

  The hole-shaped fitting portion 22 is a hole-shaped portion provided in the cable jack main body 21, and has a cylindrical body 23 and an arc piece 24 inside. A conductive hole 23 </ b> A is provided at the center of the cylindrical tube body 23 to be connected to the plug 10 side. Two arc pieces 24 are provided outside the cylindrical body 23 at a predetermined interval. When the plug 10 and the cable jack 20 are fitted together, the center conductor 17A is inserted into the conduction hole 23A to conduct, and the insulator 17B and the outer conductor 17C are inserted between the cylindrical body 23 and the arc piece 24. Yes.

  The lock portion 25 includes a restriction groove 25A, a lock piece 25B, and a lock hole portion 25C. The restricting groove 25A is a groove provided in a part of the outer wall of the hole-shaped fitting portion 22, and in the state where the cylindrical fitting portion 12 and the hole-shaped fitting portion 22 are fitted, It has a corresponding groove shape, and the lock locking claw 13 is inserted therein. By adopting such a configuration, erroneous fitting with a counterpart key that does not have a corresponding shape is prevented. The lock claw 13 and the regulation groove 25A may be in contact with each other or may not be in contact.

  A convex lock portion key 26 is provided in the restriction groove 25A. The lock portion key 26 is adapted to be fitted to the lock portion key groove 14 provided in the lock engaging claw 13 when the hole-like fitting portion 22 and the cylindrical fitting portion 12 are fitted. It is formed on the left side (see FIG. 4) from the center of the keyway 14.

  Thus, by matching the sizes of the lock portion key groove 14 and the lock portion key 26, it is possible to erroneously fit the plug having the lock portion key groove or the lock portion key having a different size with the cable jack. It is possible to prevent and fit a suitable plug and cable jack of equal size. In addition, since the key is normally provided by utilizing the empty space of the lock portion 25 where no key is provided, the function of preventing erroneous fitting can be achieved without increasing the key groove provided on the outer wall of the cable jack body 21. Can be improved. Therefore, the size of the cable jack 20 for increasing the key groove is not increased.

  In contrast to the above example, as shown in FIG. 7B, the lock portion key 26 may be formed on the right side of the center portion of the lock portion key groove 14. In this case, the position of the lock portion key groove 14 is also formed on the left side of the center portion as shown in FIG. Further, a plurality of lock unit keys 26 may be provided, and various key requests may be handled by changing the height of each key.

  The lock piece 25 </ b> B is horizontally provided in an upper space provided on the upper side of the hole-shaped fitting portion 22 inside the cable jack main body 21. A lock hole 25C is provided in the lock piece 25B. The lock hole portion 25 </ b> C is locked by locking the lock engagement claw 13 in a state where the tubular fitting portion 12 and the hole fitting portion 22 are fitted, and the fitting state is maintained. (See FIG. 5 (c)).

  The lock piece 25B is made of an elastic resin, and when the lock locking claw 13 is locked, the lock piece 25B is bent upward by an upward force applied from the lock locking claw 13, and in the locked state, it is in the normal position shown in FIG. Return. Further, when releasing the locked state, the lock piece 25B is provided by pressing downward on a spring pressing piece 27 shown in FIG. 5B which is provided on the upper part of the cable jack main body 21 and connected to the lock piece 25B. Is bent upward and the lock locking claw 13 can be easily pulled out.

  As shown in FIG. 5A, the hole-like fitting portion 22 has one groove-like outer peripheral key groove 28A on each of the left and right sides of the outer periphery, and four groove-like outer peripheral key grooves 28B on the lower surface side. doing. The outer peripheral key groove 28A and the outer peripheral key groove 28B are adapted to be fitted to the outer peripheral keys 16A and 16B of the plug 10. The positions and the number of the outer peripheral key grooves 28A and the outer peripheral key grooves 28B are not necessarily limited to this, and may be changed according to the sizes and positions of the outer peripheral keys 16A and 16B.

  By matching the position and size of the outer circumferential key and outer circumferential key groove in this way, it is possible to prevent accidental mating of plugs and cable jacks having outer circumferential key grooves or outer circumferential keys with different sizes and positions. A suitable plug and cable jack can be fitted.

  FIG. 6 is a view as seen from the upper surface side in a state where the plug 10 and the cable jack 20 are fitted, and the lock portion key 26 is fitted in the lock portion key groove 14.

  8 and 9 show a plug 10A, a cable jack 20A, and a connector 1A as modified examples of the present embodiment, respectively. The connector 1A is different from the connector 1 only in the positions of the lock portion keyway and the lock portion key, and the other components are the same.

  As shown in FIG. 8A, the lock locking claw 13 is provided with a lock portion key groove 14A at a substantially central portion in the horizontal direction (left and right direction in the figure). Further, as shown in FIG. 8B, a convex lock portion key 26A is provided at a substantially central portion in the lateral direction in the regulation groove 25A so as to match the position and size of the lock portion key groove 14A. . The lock part key 26A and the lock part key groove 14A are fitted in a state in which the hole-like fitting part 22 and the cylindrical fitting part 12 are fitted, and this state is shown in FIG. .

  As described above, the connector 1 according to the present embodiment includes the plug housing main body 11, the cylindrical fitting portion 12 attached to the plug housing main body 11, and the lock locking claw 13 protruding from the cylindrical fitting portion 12. And a plug 10 provided with a lock groove 14 on the lock latching claw 13, a cable jack main body 21, and a hole-like fitting portion that is provided in the cable jack main body 21 and engages with the cylindrical fitting portion 12. The lock engagement claw 13 has a shape corresponding to the lock engagement claw 13 and the lock engagement claw 13 in a state in which the cylinder engagement portion 12, the tubular engagement portion 12, and the hole engagement portion 22 are engaged with each other. The cable jack 20 is provided with a lock portion having a restriction groove 25A into which the locking claw 13 is inserted, and a lock portion key 26 fitted in the lock portion key groove 14 is provided in the restriction groove 25A, and is fitted with the plug 10. And.

  With this configuration, the lock portion key 26 provided in the restriction groove 25 </ b> A of the lock portion 25 is provided in the lock locking claw 13 in a state where the tubular fitting portion 12 and the hole-like fitting portion 22 are fitted. Since it is fitted into the key groove 14 for the lock portion, it is possible to prevent erroneous fitting between the plug 10 and the cable jack 20. Further, since the lock locking claw 13 is provided with the lock portion key groove 14 and the lock portion key 26 is provided within the restriction groove 25A, a space for providing a key or key groove in the plug housing main body 11 and the cable jack main body 21 is provided. Since it is not necessary to provide a new connector, an increase in connector size can be suppressed.

  Further, the lock portion key groove 14 may be provided on one end side, that is, on either the right side or the left side of the both ends of the lock engaging claw 13 in the lateral direction. Further, the lock portion key groove 14 </ b> A may be provided at a substantially central portion in the lateral direction of the lock locking claw 13. With this configuration, it is possible to meet a variety of key requests by using many key shapes.

  Moreover, the cylindrical fitting part 12 of the plug 10 has a plurality of convex outer peripheral keys 16A and 16B on the outer wall surface, and the hole-like fitting part 22 of the cable jack 20 has a plurality of groove-like shapes on the outer wall surface. The outer circumferential key grooves 28A and 28B are provided, and the outer circumferential keys 16A and 16B and the outer circumferential key grooves 28A and 28B are fitted in a state where the tubular fitting portion 12 and the hole fitting portion 22 are fitted. Also good. With this configuration, the number of combinations of keys and key grooves can be increased, and erroneous fitting can be prevented more reliably.

  The technical scope of the connector according to the present invention is not limited to the above-described embodiment, but includes various modifications of each component described in the claims.

  As described above, the connector according to the present invention has an effect that an additional key can be provided without increasing the size of the connector, and erroneous fitting between the connectors can be prevented, and is useful for all connectors. .

DESCRIPTION OF SYMBOLS 1, 1A connector 10, 10A plug 11 Plug housing main body 12 Cylindrical fitting part 13 Lock latching claw 14, 14A Key groove for lock parts 16A, 16B Peripheral key 20, 20A Cable jack (receptacle)
21 Cable jack body (receptacle body)
22 Hole-shaped fitting part 25 Lock part 25A Restriction groove 25B Lock piece 25C Lock hole part 26, 26A Lock part key 28A, 28B Peripheral key groove

Claims (4)

A plug housing main body, a cylindrical fitting portion attached to the plug housing main body, and a lock locking claw protruding from the cylindrical fitting portion,
A plug provided with a key groove for a lock portion on the lock engaging claw;
A receptacle body,
A hole-shaped fitting portion that is provided in the receptacle body and engages with the cylindrical fitting portion;
The lock engagement portion has a shape corresponding to the lock engagement claw and the lock engagement claw in a state where the cylindrical engagement portion and the hole engagement portion are engaged, and the lock engagement A lock portion having a restriction groove into which the nail is inserted,
A connector comprising: a lock portion key that fits into the lock portion key groove in the restriction groove; and a receptacle that fits into the plug.   The connector according to claim 1, wherein the key groove for the lock portion is provided on one end side of both end portions in the lateral direction of the lock latching claw.   The connector according to claim 1, wherein the lock portion key groove is provided at a substantially central portion in a lateral direction of the lock locking claw. The tubular fitting portion of the plug has a plurality of convex outer peripheral keys on the outer wall surface,
The hole-shaped fitting portion of the receptacle has a plurality of groove-shaped outer peripheral key grooves on an outer wall surface;
The outer circumferential key and the outer circumferential key groove are fitted together in a state in which the cylindrical fitting portion and the hole-like fitting portion are fitted. Connector described in.

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