TWI688175B - Coaxial cable connector and connector system - Google Patents

Abstract

As a conventional example, for a configuration in which the concave portion provided on the inner wall of the fitting portion of the coaxial cable connector is fitted with the convex portion provided on the outer wall of the fitting portion of the socket connector, the thickness of the portion where the walls of each fitting portion overlap Is the thickness that becomes the sum of the thicknesses of the fitting parts, which is one of the factors that hinder the miniaturization of the coaxial cable connector.

The present invention can provide a coaxial cable connector and a connector system. By: the inward locking recess provided in the inner wall of the fitting portion of the coaxial cable connector is recessed backward from the surface of the inner wall, and the inward locking convex The portion is formed so as not to protrude from the surface of the inner wall. Similarly, the outward locking recess provided on the outer wall of the fitting portion of the receptacle connector is recessed backward from the surface of the outer wall, and the outward locking convex portion is not The structure protrudes from the surface of the outer wall, and when fitted, the thickness of the portion where the walls of each fitting portion overlap can be made thinner.

Description

Coaxial cable connector and connector system

The present invention relates to a connector system composed of a coaxial cable connector (plug-side connector) and a counterpart socket connector (substrate-side connector). Specifically, there is a fitting structure for a socket connector that contributes to miniaturization (diameter reduction) of a coaxial cable connector.

A coaxial cable connector generally includes a terminal, a housing supporting the terminal, an outer conductor jacket covering at least a portion of the housing and at least a portion of the coaxial cable, and a coaxial cable. On the other hand, the receptacle connector on the opposite side is composed of a terminal, a housing supporting the terminal, and an outer conductor cover covering at least a part of the housing. The coaxial cable connector is an inner wall of the cylindrical fitting portion of the outer conductor cover, and the annular convex portion formed by the protrusion faces the cylindrical fitting portion of the outer conductor of the socket connector The outer wall of the is fitted with an annular recess formed by crushing, and the inner wall of the cylindrical fitting portion of the outer conductor sleeve is provided with an annular recess formed by crushing. Similarly, the socket connector is also on the outer conductor The outer wall of the cylindrical fitting portion is provided with an annular concave portion formed by crushing or an annular convex portion formed by protruding.

The annular convex portion or annular concave portion provided in the fitting portion of the coaxial cable connector is connected to the coaxial cable by the annular concave portion or annular convex portion embedded in the fitting portion of the socket connector The connection status of the connector and the socket connector is maintained. For example, in the conventional example of the plug connector (coaxial cable connector) of Japanese Patent Laid-Open No. 2012-230820 (Patent Document 1), an annular concave lock formed on the inner wall of the outer side contact is formed The part is a locking part formed in a ring-shaped convex shape fitted into the outer wall of the inner side contact of the socket connector to maintain the connection state of the connectors.

[Conventional Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Unexamined Patent Publication No. 2012-230820

As in the above-described conventional example, for a structure in which the concave portion provided on the inner wall of the fitting portion of the coaxial cable connector and the convex portion provided on the outer wall of the fitting portion of the socket connector are fitted, the wall of each fitting portion when fitted The thickness of the overlapped portion is the total thickness of the wall of the fitting portion of the coaxial cable connector and the thickness of the fitting portion of the socket connector. For example, when the thickness of the walls of the fitting portions is equal, the thickness of the overlapping portions of the fitting portions is almost twice the thickness of the walls of the fitting portions.

The thickness of the wall of each fitting portion needs to be maintained at a strength that does not deform due to crushing or the like during fitting. Therefore, when the coaxial cable connector is miniaturized, the thickness of the wall of the fitting portion cannot be reduced. The thickness that maintains the necessary strength becomes thinner, and the thickness of the wall is a problem that hinders the miniaturization of the coaxial cable connector.

Provided herein is a coaxial cable connector and a connector system, provided on at least a part of an inner wall of a fitting portion of a coaxial cable connector, a groove-shaped inward locking recess extending in a direction perpendicular to the fitting direction, and A ridge-shaped inward locking convex portion protruding more than the inward locking concave portion, similarly, at least a part of the outer wall of the fitting portion of the socket connector is provided with a groove shape extending in a direction perpendicular to the fitting direction The outward locking concave portion and the ridge-like outward locking convex portion protruding more than the outward locking concave portion, when the connectors are connected to each other, by making the inner wall of the fitting portion of the coaxial cable connector inward The locking convex portion and the inward locking concave portion are the thickness of the portion where the outward locking concave portion and the outward locking convex portion provided on the outer wall of the fitting portion of the socket connector are fitted to overlap the walls of the fitting portions, The thickness becomes thinner than the thickness of the sum of the thickness of the fitting portion of the coaxial cable connector and the thickness of the fitting portion of the socket connector (that is, the thickness of only two walls overlapping each fitting portion).

More specifically, it is possible to provide a coaxial cable connector and a connector system. The inward locking recess provided on the inner wall of the fitting portion of the coaxial cable connector is recessed backward from the surface of the inner wall and inward The locking convex portion is formed so as not to protrude from the surface of the inner wall. Similarly, the outward locking concave portion provided on the outer wall of the fitting portion of the receptacle connector is recessed backward from the surface of the outer wall to lock the convex portion outward It is structured so as not to protrude from the surface of the outer wall. When the inward locking convex portion is fitted with the outward locking concave portion, and the inward locking concave portion is fitted with the outward locking convex portion, the portion where the walls of each fitting portion can overlap The thickness is thinner.

A coaxial cable connector according to an embodiment of the present invention includes a terminal, a housing supporting the terminal, an outer conductor cover covering at least a portion of the housing and at least a portion of the coaxial cable, and a coaxial cable. The outer conductor cover is provided with a cylindrical fitting portion that can be displaced outward, has an inward locking protrusion on the inner wall of the fitting portion, and has a rear side more in the fitting direction than the inward locking protrusion The inward locking recess is recessed backward from the surface of the inner wall of the fitting portion, and the inward locking convex portion does not protrude from the surface of the inner wall of the fitting portion.

In a preferred embodiment of the coaxial cable connector of the present invention, the inward locking recess is formed in a groove shape extending in a direction perpendicular to the fitting direction at least a part of the inner wall of the fitting portion.

In a preferred embodiment of the coaxial cable connector of the present invention, the inward locking convex portion is formed in a ridge shape extending in a direction perpendicular to the fitting direction on at least a part of the inner wall of the fitting portion.

A preferred embodiment of the coaxial cable connector of the present invention is that the inward locking convex portion is formed in the fitting portion on the fitting side of the socket connector with respect to the inward locking concave portion.

A preferred embodiment of the coaxial cable connector of the present invention is that the inward locking recess is formed in the fitting portion on the fitting side of the socket connector more than the inward locking convex portion.

A preferred embodiment of the coaxial cable connector of the present invention is that the top surface or vertex of the inward locking convex portion is located at a position lower than the surface of the inner wall of the fitting portion, and is inwardly locked The most concave part of the recess is higher.

The connector system of the first embodiment of the present invention is to fit the external conductors of two connectors so that their surfaces face each other, and include a recess formed by the external conductor of one connector and a connection formed by the other The locking mechanism formed by the convex portion of the external conductor of the connector, when the two connectors are fitted to each other, the facing surface of at least one of the external conductors, in addition to the locking mechanism, is formed more The concave portion of the depression places the surface of the fitting range at a position where the radial direction repeats.

The preferred embodiment of the connector system of the present invention is the aforementioned locking portion, in which the concave portion is formed in the fitting portion of the outer conductor on the inner side and the convex portion is formed on the fitting portion of the outer conductor on the outer side when fitting and overlapping. A recessed portion formed by crushing the plate thickness of a portion on the rear side in the fitting direction from the convex portion of the outer conductor on the outer side is accommodated in the plate thickness direction in a fitting direction than the concave portion on the inner conductor The apex part.

The preferred embodiment of the connector system of the present invention is the height of the highest surface on the tip side in the fitting direction from the recess of the inner outer conductor, which is the original part of the fitting portion of the inner outer conductor Below the height of the surface.

The preferred embodiment of the connector system of the present invention is the height of the highest surface on the tip side in the fitting direction from the recess of the inner outer conductor, which is the original part of the fitting portion of the inner outer conductor The height of the surface is equal to or less than the depth of the concave portion of the outer conductor.

With separate locking recesses that are recessed rearward from the surface of the inner wall of the fitting portion of the coaxial cable connector and inward locking protrusions that do not protrude more from the surface of the inner wall, the socket connector The outward locking convex portion protruding from the surface of the outer wall of the fitting portion and the outward locking concave portion recessed backward from the surface of the outer wall are fitted, because the thickness of the portion where the walls of each fitting portion overlap can be more than The thickness of the two overlapping walls of each fitting portion is thinner, so that the thickness of the fitting portion of the coaxial cable connector can be maintained at a thickness that is smaller than the diameter of the fitting portion of the coaxial cable connector. The design can contribute to the miniaturization of the coaxial cable connector.

1‧‧‧Coaxial cable connector

2‧‧‧Socket connector

10‧‧‧External conductor cover

11‧‧‧Enclosure Department

12‧‧‧Clamp

13‧‧‧ Wall

14‧‧‧Cylinder

15‧‧‧Bending Department

16‧‧‧Core wire clamp section

17‧‧‧External conductor clamp

18‧‧‧Covered clamp part

19‧‧‧ set off

20‧‧‧Inward locking recess

21‧‧‧Inward locking protrusion

22‧‧‧inclined part

23‧‧‧Induction Department

24‧‧‧Convex

30‧‧‧Housing

31‧‧‧Contact

32‧‧‧Cylinder

33‧‧‧ base

34‧‧‧protrusion

35‧‧‧Body

36‧‧‧Core connection

37‧‧‧Core fixing part

38‧‧‧Ditch

40‧‧‧External conductor cover

41‧‧‧Contact

42‧‧‧lock outward

43‧‧‧Insulator

44‧‧‧fitting part

45‧‧‧Outer insulator

46‧‧‧ Placement Department

47‧‧‧lock outward

48‧‧‧ Placement Department

50‧‧‧Coaxial cable

51‧‧‧Insulator

52‧‧‧Insulation coating

53‧‧‧External conductor

60‧‧‧fitting range

70‧‧‧Repeat on the surface

[FIG. 1] A perspective view showing an insulating housing and an outer conductor cover constituting a coaxial cable connector according to an embodiment of the present invention.

[Fig. 2] A perspective view showing a state where the insulating housing shown in Fig. 1 is arranged in an outer conductor sheath and a state seen from the tip end side of the cable.

[FIG. 3] A diagram showing a cross section of a cylindrical portion that constitutes a part of an approximately ring-shaped fitting portion of a coaxial cable connector according to an embodiment of the present invention.

[Fig. 4] A perspective view showing a coaxial cable connector and a mating connector, that is, a socket connector, which form a substantially annular fitting portion to connect a coaxial cable from the state shown in Fig. 2. [Fig.

[Figure 5] A cross-sectional view showing a state before connecting the coaxial cable connector and the receptacle connector.

[Figure 6] A cross-sectional view showing a state after the coaxial cable connector and the receptacle connector are connected.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, in all the drawings used to describe the embodiments, the same members are generally denoted by the same symbols, and repeated explanations are omitted.

Fig. 1 shows an insulating housing and an outer conductor cover constituting a coaxial cable connector according to an embodiment of the present invention. The outer conductor cover 10 is formed by bending and punching a metal plate, and is provided with a housing accommodating portion 11 configured to accommodate the base portion 33 of the housing 30 on the front end side (that is, the front end side of the coaxial cable), and is provided on the rear end side with A clamp part (connection part) 12 formed by connecting the outer conductor of the coaxial cable and the connection. The edge portion of the outer conductor cover 10 is provided with a wall portion 13 perpendicular to the plane of the housing housing portion 11. The wall portion 13 is, for example, formed by vertically bending the edge from the front end of the outer conductor cover 10 to the position where the wire clamp portion 16 extends.

The outer conductor cover 10 is provided with a cylindrical portion 14 configured to fix the outer casing 30 by surrounding the circumference of the cylindrical portion 32 of the outer casing 30 and pressing the protrusion 34 protruding from the side of the base portion 33. The bent portion 15 is provided at the front end portion of the outer conductor cover 10 and constitutes a part of the cylindrical portion 14. In the manufacturing process of the coaxial cable connector, the bending portion 15 is a cylindrical portion that is bent perpendicularly to the plane of the housing receiving portion 11 at the boundary line with the housing receiving portion 11 and extends from both sides of the bending portion 15 14. It is bent at the boundary with the bent portion 15 so as to surround the cylindrical portion 32 of the housing 30. The bent portion 15 may include a convex portion 24 on the surface facing the cylindrical portion 32 and serving as an inner wall.

Furthermore, the outer conductor cover 10 is provided with a clamp portion 12 for fixing the coaxial cable to the rear end portion. The clip portion 12 includes the covering clip portion 18 and the outer conductor clip portion 17. In addition to the covering clamp portion 18 and the outer conductor clamp portion 17, a core clamp portion 16 that protrudes from the wall portion 13 is provided at the central edge portion of the outer conductor jacket 10. The core wire clamp portion 16 is a coaxial cable arranged at the core wire connecting portion 36 by being bent in a box shape at the boundary line with the wall portion 13 and by the core wire fixing portion 37 of the outer casing 30 arranged inside The core wire is indirectly pressed and connected.

Regarding the outer conductor clamp portion 17 and the covering clamp portion 18 provided at the rear end portion of the outer conductor sheath 10, the outer conductor clamp portion 17 is to be arranged outside the coaxial cable to be disposed in the clamp portion 12 The conductor is configured to be directly clamped to the outer conductor jacket 10 in a cylindrical shape, and the covering clamp portion 18 is to directly clamp the covering of the coaxial cable to the outer conductor jacket 10 in a cylindrical shape Way composition. In the central flat portion of the outer conductor cover 10 (that is, the flat portion where the wall portion 13 extending from the core wire clamp portion 16 is held), a lifting piece 19 protruding by lifting the flat portion is provided.

The housing 30 is provided with a base portion 33 on the front end side of the coaxial cable connector and a body portion 35 on the rear end side. The base 33 is provided with a cylindrical portion 32 extending toward the side connected to the counterpart connector, and on the side surface of the base 33 is provided with two protrusions 34 extending perpendicularly to the cylindrical portion 32. The protrusion 34 can be pressed by the cylindrical portion 14 of the outer conductor cover 10 during the manufacturing process of the coaxial cable connector to fix the base 33 placed in the housing housing portion 11. The body portion 35 is provided with a groove 38 configured to be engaged with the lift-off piece 19 of the outer conductor cover 10. When the casing 30 is assembled into the outer conductor cover 10, the body portion 35 can be fixed to the casing 30 by engaging with the lifting piece 19.

The housing 30 may be integrally formed to support the terminal, cover the central portion of the terminal, and house the terminal. The cylindrical portion 32 exposes the contact portion 31 of the terminal from the side connected to the counterpart connector. The body portion 35 on the rear end side of the housing 30 is provided with a core wire fixing portion 37 that exposes the core wire connection portion 36 of the terminal from the side where the core wire of the coaxial cable is connected, and projects toward the side where the core wire of the coaxial cable is connected. The core wire fixing portion 37 extends from the edge of the body portion 35 on both sides of the core wire connecting portion 36, and when the housing 30 is incorporated into the outer conductor sheath 10, the core wire fixing portion 37 is arranged on the core wire clamp portion 16 inside.

FIG. 2 shows a state where the insulating casing shown in FIG. 1 is arranged in the outer conductor cover. FIG. 2(a) shows a state before the outer housing 30 accommodated in the outer conductor cover 10 is pressed against the protrusion 34 of the base 33 by the cylindrical portion 14 of the outer conductor cover 10. The cylindrical portion 14, the bent portion 15 and the main body portion 35 are substantially annular (cylindrical) fitting portions that constitute the coaxial cable connector 1 as shown in FIGS. 4 (a) and (b). In this embodiment, the approximately annular fitting portion of the coaxial cable connector 1 includes the cylindrical portion 14, the bent portion 15, and the body portion 35, but in order to form the approximately annular fitting portion, at least the cylindrical portion Part 14 is preferred. The approximately ring-shaped fitting part can be displaced outward. Here, when the coaxial cable connector is configured, the surface of the wall portion facing the inner side of the fitting portion is called an inner wall, and the surface of the wall portion facing the outer side is called an outer wall.

The cylindrical portion 14 that constitutes a part of the approximately ring-shaped fitting portion of the coaxial cable connector 1 (refer to (a) and (b) in FIG. 4) is provided with an inward lock on the portion of the fitting portion that becomes the inner wall The concave portion 20 and the inward locking convex portion 21. The inward locking concave portion 20 is located on the rear side of the fitting direction than the inward locking convex portion 21, and the inward locking convex portion 21 is the cylindrical portion 14 that is positioned on the front side in the fitting direction than the inward locking concave portion 20. The edge portion is formed in a tapered shape. In this embodiment, the inward locking concave portion 20 functions as the original locking portion, and the inward locking convex portion 21 serves to prevent the outward locking convex portion 42 from falling off from the inward locking concave portion 20 The function of the additional locking part is also possible. The inward locking recess 20 is formed at least in part of the inner wall of the fitting portion of the coaxial cable connector 1 (part of the inner wall of the cylindrical portion 14), and forms a groove extending in a direction perpendicular to the fitting direction, inward The locking protrusion 21 is formed in a ridge shape extending in a direction perpendicular to the fitting direction on at least a part of the inner wall of the fitting part (a part of the inner wall of the cylindrical part 14). The inward locking concave portion 20 is formed into a groove shape, and the inward locking convex portion 21 is formed into a ridge shape, but is not limited thereto, for example, a discontinuous groove (or plural concave portions) and a discontinuous ridge (or plural convex portions) ) Also.

In this embodiment, the inward locking convex portion 21 is formed closer to the inward locking concave portion 20 in the fitting portion of the coaxial cable connector 1 (refer to (a) and (b) in FIG. 4). The mating side of the mating connector is not limited to this. The inward locking recess 20 may be formed on the mating side of the receptacle connector rather than the inward locking convex portion 21 in the mating portion.

As shown in FIG. 2(b), the inward locking recess 20 is formed to be recessed backward from the surface of the inner wall of the cylindrical portion 14 (inner wall of the fitting portion of the coaxial cable connector) formed of a metal plate, The top surface (or apex) of the inward locking convex portion 21 is formed so as not to protrude from the surface of the inner wall of the cylindrical portion 14 (the inner wall of the fitting portion of the coaxial cable connector). The inward locking convex portion 21 has an inclined portion 22 that is inclined to expand outward. Furthermore, the cylindrical portion 14 includes a guide portion 23 formed so as to expand outward toward the outside of the outer wall of the cylindrical portion 14 at the edge portion on the mating side with the mating connector, that is, the receptacle connector. Further, the cylindrical portion 14 is formed to form an approximately annular fitting portion, and a plate piece of a portion that does not protrude toward the surface of the inner wall may be bent inward. The curved portion of the cylindrical portion 14 is formed along the curved surface of the outer wall of the mating portion of the mating connector (the mating portion 44 of the socket connector 2 (refer to FIG. 4 (c))), and is not bent by bending A part protruding from the surface of the inner wall of the cylindrical portion 14 is formed.

Fig. 3 is a cross section showing a part of a cylindrical portion constituting a substantially annular fitting portion of a coaxial cable connector according to an embodiment of the present invention. FIG. 3(b) is a cross-sectional view of an enlarged cross-section of the cylindrical portion 14 taken along a line a-a shown in FIG. 3(a). As shown in FIG. 3(b), the inward locking recess 20 is recessed backward from the surface of the inner wall of the cylindrical portion 14 (inner wall of the fitting portion), and the inward locking convex portion 21 is not from the cylindrical portion 14 The surface of the inner wall (the inner wall of the fitting portion) protrudes. The top surface (or vertex) of the inward locking convex portion 21 that never protrudes from the surface of the inner wall of the cylindrical portion 14 is formed with an inclined portion 22 that expands outward. The guide portion 23 is formed to expand outward at the edge portion on the mating side of the mating connector, and protrudes from the surface of the outer wall of the cylindrical portion 14. With this shape, the inclined portion 22 and the guide portion 23 can easily attract the mating portion of the mating connector, that is, the socket connector, toward the mating portion of the coaxial cable connector.

Moreover, although the inward locking convex portion 21 is formed not to protrude from the surface of the inner wall of the cylindrical portion 14, it is not limited to this embodiment, and the outward locking concave portion 47 (refer to FIG. 5) of the mating connector is below the depth Can be highlighted. That is, the top surface (or apex) of the inward locking convex portion 21 is located at a position lower than the surface of the inner wall of the cylindrical portion 14 (inner wall of the fitting portion), and is the deepest than the inward locking concave portion 20 A higher position of the depressed part is also possible.

FIG. 4 shows a coaxial cable connector and its counterpart connector, that is, a receptacle connector, that form a substantially annular fitting portion and connect a coaxial cable from the state shown in FIG. 2. As shown in FIG. 4(a), in the manufacturing process of the coaxial cable connector, the bent portion 15 is at a boundary line with the housing accommodating portion 11, and is bent perpendicularly to the plane of the housing accommodating portion 11 and bent from The cylindrical portion 14 extending on both sides of the portion 15 is bent at the boundary with the bent portion 15 so as to surround the cylindrical portion 32 of the housing 30. At this time, by bending the cylindrical portion 14 that constitutes a part of the approximately annular fitting portion, the protrusion 34 protruding from the side surface of the base portion 33 of the housing 30 can be pressed to house the housing 30 housed in the outer conductor cover 10 fixed.

FIG. 4(b) shows the coaxial cable connector 1 in a state where the coaxial cable 50 is connected. The coaxial cable 50 is composed of an insulating coating 52, an outer conductor 53, an insulator 51, and a core wire (not shown). The insulating cover 52 covers the outer conductor 53. The outer conductor 53 surrounds the insulator 51, and the insulator 51 surrounds the core wire. The core wire of the coaxial cable 50 is arranged on the core wire connection portion 36 held by the terminal of the housing 30, and the outer conductor and the insulating coating 52 are arranged on the clip portion 12.

The core wire is crimped and connected to the core wire connecting portion 36 by clamping the core wire clamp portion 16 from the core wire fixing portion 37 of the housing 30 in the inner side. The outer conductor 53 fixes the outer conductor clamp portion 17 by the clamp. The insulating cover 52 fixes the cover clip portion 18 by the clip.

Fig. 4(c) shows the counterpart connector of the coaxial cable connector 1, that is, the receptacle connector 2. The receptacle connector 2 is provided with: a conductive terminal including a contact portion 41 and a mounting portion 46, and an insulation including an inner insulator 43 and an outer insulator 45 that expose the contact portion 41 and the attaching portion 46 and hold the terminal Outer cover and an outer conductor cover 40 covering at least a part of the outer cover. The outer conductor cover 40 is provided at the center with a cylindrical portion 44 in which the outward locking concave portion 47 and the outward locking convex portion 42 are provided on the outer wall, and a flange-like sticker that extends outward in the direction perpendicular to the cylindrical portion 44装部48. The outward locking concave portion 47 is located on the rear side of the fitting direction relative to the outward locking convex portion 42, and the outward locking convex portion 42 is a cylinder portion 44 which is positioned on the front side of the fitting direction relative to the outward locking concave portion 47 The edge portion is formed in a tapered shape. In this embodiment, the outward locking concave portion 47 functions as the original locking portion, and the outward locking convex portion 42 serves to prevent the inward locking convex portion 21 from falling out of the outward locking concave portion 47 The function of the additional locking part is also possible. The coaxial cable connector 1 and the socket connector 2 constitute one connector system.

The outward locking concave portion 47 is formed in at least a part of the outer wall of the annular fitting portion 44 and is formed in a groove shape extending in a direction perpendicular to the fitting direction, and the outward locking convex portion 42 is formed in the annular fitting portion At least a part of the outer wall of 44 is formed in a ridge shape extending in a direction perpendicular to the fitting direction. The outward locking concave portion 47 is formed into a groove shape, and the outward locking convex portion 42 is formed into a ridge shape, but is not limited thereto, for example, a discontinuous groove (or plural concave portions) and a discontinuous ridge (or plural convex portions) ) Also.

In this embodiment, the outward locking convex portion 42 is the fitting portion 44 of the receptacle connector 2 and is formed on the mating side of the counterpart connector than the outward locking concave portion 47, but it is not limited to this, The outward locking concave portion 47 may be formed on the fitting portion 44 on the mating side of the mating connector than the outward locking convex portion 42.

Fig. 5 is a cross section showing the state before and after the connection of the coaxial cable connector and the receptacle connector. As shown in FIG. 4(b), the cross section of the coaxial cable connector 1 is a cross section perpendicularly cut along the line bb passing through the center of the cylindrical portion 32, and the cross section of the receptacle connector 2 is as shown in FIG. 4(c). ) Shows a cross section perpendicularly cut along a line cc passing through the center of the cylindrical portion 44. As shown in FIG. 5, the outward locking concave portion 47 is formed to be recessed backward from the surface of the outer wall of the fitting portion 44, and the outward locking convex portion 42 is formed so as not to protrude from the surface of the outer wall of the fitting portion 44.

Although it is not formed so as to protrude from the surface of the outer wall of the outward locking convex portion 412 and the fitting portion 44, it is not limited to this embodiment, and it may be protruded below the depth of the inward locking concave portion 20 of the counterpart connector. That is, the top surface (or apex) of the outward locking convex portion 42 is located at a position lower than the surface of the outer wall of the fitting portion 44 and higher than the most recessed portion of the outward locking concave portion 47 can.

Moreover, the wall portion 13 of the outer conductor cover 10 of the coaxial cable connector 1 is in contact with the cylindrical portion 14, and the coaxial cable connector 1 is substantially ring-shaped composed of the cylindrical portion 14, the bent portion 15 and the body portion 35 And the annular fitting portion 44 of the socket connector 2 are fitted, the guide portion 23 formed by expanding outward from the surface of the outer wall of the cylindrical portion 14 is located on both sides of the coaxial cable connector 1 The outer wall of the side wall portion 13 and the mounting portion 48 of the receptacle connector 2 are further inside, so the size reduction (diameter reduction) of the coaxial cable connector is not affected.

Fig. 6 is a cross-sectional view showing a state after the coaxial cable connector and the receptacle connector are connected from the state shown in Fig. 5. When the approximately annular fitting portion composed of at least the cylindrical portion 14 of the coaxial cable connector 1 and the annular fitting portion 44 of the receptacle connector 2 are fitted, the convex portion 21 and the The inner locking recess 20 is fitted with the outer locking recess 47 and the outer locking projection 42 to electrically connect the outer conductor cover 10 of the coaxial cable connector 1 and the outer conductor cover 40 of the receptacle connector 2. That is, the connector system including the coaxial cable connector 1 and the receptacle connector 2 includes a locking mechanism composed of an inward locking convex portion 21 and an outward locking concave portion 47 that are fitted to each other, and The additional locking mechanism constituted by the inward locking concave portion 20 and the outward locking convex portion 42. Furthermore, between the contact portions 31 of the coaxial cable connector 1, the contact portions 41 of the receptacle connector 2 are electrically connected while being pinched.

The thickness of the wall of the fitting portion coaxial connector 1 (i.e., the wall of the tubular portion 14) are set at the time t _1, the thickness of the wall of the fitting portion 44 of the receptacle connector 2 where T is set to _2, and each The thickness of the portion where the walls of the fitting portion overlap is only t ₁ +t ₂ . For example, in the conventional example shown in Patent Document 1, even if the concave portion or the convex portion of one fitting portion is fitted with the convex portion or the concave portion of the other fitting portion, each fitting portion overlaps The thickness of the part will not be thinner than t ₁ +t ₂ .

In this regard, in the coaxial cable connector 1 and the receptacle connector 2 according to an embodiment of the present invention, provided on the inner wall of the approximately annular fitting portion constituted by at least the cylindrical portion 14 of the coaxial cable connector 1 The inward locking recess 20 is recessed backward from the surface of the inner wall, so that the inward locking convex portion 21 does not protrude from the surface of the inner wall, and the inclined portion 22 is recessed from the surface of the inner wall while expanding outward, similarly The outward locking concave portion 47 provided on the outer wall of the fitting portion 44 of the receptacle connector 2 is recessed backward from the surface of the outer wall, so that the outward locking convex portion 42 does not protrude from the surface of the outer wall, but inward When the locking mechanisms of the locking convex portion 21 and the outward locking concave portion 47 are fitted to each other, and when the inward locking concave portion 20 and the outward locking convex portion 42 are fitted, the thickness of one of the outer conductors in the fitting direction is the original thickness The portion of the height of the surface corresponds to the formation of the recessed portion so that the other surface is recessed. Therefore, the thickness of the portion where the walls of the metal plates of the fitting portion overlap can be thinner than t ₁ +t ₂ .

Here, when the coaxial cable connector 1 and the receptacle connector 2 are fitted, the range of the fitting direction of the portion where the surfaces of the outer conductor sleeve 10 and the outer conductor sleeve 40 face each other is called the fitting range 60 . That is, the fitting range 60 is a portion of the coaxial cable connector 1 including at least the cylindrical portion 14 of the substantially annular fitting portion covering the fitting portion 44 of the socket connector 2 (in the embodiment shown in FIG. 6 , The portion that overlaps from the tip of the cylindrical portion 14 (the edge of the inducing portion 23) to the tip of the fitting portion 44 (the edge of the outward locking convex portion 42) (shown at symbol 60 in FIG. 6) Part of the range of the))) in the fitting direction.

When the coaxial cable connector 1 and the receptacle connector 2 are mated, in addition to the locking mechanism, at least one of the facing surfaces of the outer conductor cover of the connector is formed with a recessed portion recessed from the surface and including In the concave portion of the inclined portion, the surface of the fitting range 60 is located at a position overlapping in the radial direction. For example, as shown in FIG. 6, in the fitting range 60, the surface repeating portion 70 refers to the surface of the inner wall (and the inward locking convex portion) of the fitting portion (tube portion 14) of the coaxial cable connector 1 21 (the top surface) and the surface of the outer wall of the fitting portion 44 of the socket connector 2 (and the top surface of the outward locking convex portion 42) in the radially overlapping portion (in the range shown by symbol 70 in FIG. 6) part).

As a result, it is possible to maintain a thickness that can maintain the strength of the fitting portion of the coaxial cable connector, and to design the diameter of the fitting portion to be smaller, which can contribute to the miniaturization of the coaxial cable connector. In addition, although the height of each convex portion is made not to protrude from the original thickness of the metal plate, that is, the surface of the inner wall, it may be protruded from the surface of the inner wall in a range below the depth of the depression of the corresponding concave portion.

And the top surface (or apex) of the convex portion 21 is locked inward, even at a position lower than the surface of the inner wall of the cylindrical portion 14 (the inner wall of the fitting portion), the top surface of the convex portion 42 is locked outward (Or the apex) is located at a position lower than the surface of the outer wall of the fitting portion 44, and the same effect as described above can be obtained.

The embodiments of the present invention are not independent embodiments, and can be suitably implemented in various combinations.

[Industry availability]

The coaxial cable connector and connector system of the present invention can be used for electrical signal transmission in small electronic equipment.

1‧‧‧Coaxial cable connector

2‧‧‧Socket connector

13‧‧‧ Wall

14‧‧‧Cylinder

20‧‧‧Inward locking recess

21‧‧‧Inward locking protrusion

22‧‧‧inclined part

23‧‧‧Induction Department

31‧‧‧Contact

32‧‧‧Cylinder

33‧‧‧ base

41‧‧‧Contact

42‧‧‧lock outward

43‧‧‧Insulator

44‧‧‧fitting part

47‧‧‧lock outward

60‧‧‧fitting range

70‧‧‧Repeat on the surface

Claims (9)

A coaxial cable connector, comprising: a terminal, a housing supporting the terminal, an outer conductor cover covering at least a part of the housing and at least a portion of the coaxial cable, and a coaxial cable, the outer conductor cover The cover is provided with a cylindrical fitting portion that can be displaced outward, has an inward locking convex portion on the inner wall of the fitting portion, and has an inward locking on the rear side of the inward locking convex portion in the fitting direction The concave portion, the inward locking concave portion is recessed backward from the surface of the inner wall of the fitting portion, the inward locking convex portion does not protrude from the surface of the inner wall of the fitting portion, the inward locking convex portion The top surface or the apex is located at a position lower than the surface of the inner wall of the fitting portion and higher than the most recessed portion of the inward locking recess. The coaxial cable connector according to item 1 of the patent application, wherein the inward locking recess is formed in a groove shape extending in a direction perpendicular to the fitting direction in at least a part of the inner wall of the fitting portion. The coaxial cable connector according to item 1 of the patent application range, wherein the inward locking convex portion is formed in a ridge shape extending in a direction perpendicular to the fitting direction on at least a part of the inner wall of the fitting portion. The coaxial cable connector according to any one of claims 1 to 3, wherein the inward locking convex portion is formed in the fitting portion closer to the socket connector than the inward locking concave portion Mosaic side. The coaxial cable connector according to any one of claims 1 to 3, wherein the inward locking recess is formed in the fitting portion closer to the socket connector than the inward locking protrusion Mosaic side. A connector system in which the outer conductors of two connectors are fitted so that their surfaces face each other, and are characterized by having a recess formed by an outer conductor of one connector and a connector formed on the other The locking mechanism constituted by the convex portion of the external conductor has convex portions (21, 42) and concave portions on the facing surfaces of the fitting range of the external conductor of one connector and the external conductor of the other connector, respectively (20, 47), when the two connectors are mated with each other, one convex part (21) is fitted into the other concave part (47), and the other convex part (42) is fitted into one concave part (20), so that A repeating region (70) is formed on the surface of the aforementioned fitting range. A connector system according to item 6 of the patent application, wherein the aforementioned locking portion is the fitting of the outer conductor on the inner side when the fitting overlaps A concave portion is formed, a convex portion is formed at the fitting portion of the outer conductor on the outer side, and a concave portion is formed thinly by crushing the plate thickness of the portion on the rear side in the fitting direction from the convex portion of the outer conductor on the outer side In the plate thickness direction, a portion closer to the front end side in the fitting direction than the concave portion of the inner inner conductor is accommodated. A connector system according to item 6 of the patent application range, wherein the height of the highest surface on the tip side in the fitting direction from the concave portion of the inner outer conductor is originally the fitting portion of the inner outer conductor The height of the surface is below. A connector system according to claim 6 of the patent application, wherein the height of the highest surface on the tip side in the fitting direction from the recess of the inner outer conductor is originally the fitting portion of the inner outer conductor The height of the surface of is less than or equal to the depth of the recess of the outer conductor.

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