TWI656698B - Coaxial cable connector with core wire holding and fixing function - Google Patents

Abstract

Provide a terminal without using complicated structure, mainly by external The cover allows the core wire of the coaxial cable to be reliably connected to the terminal and held and fixed, thereby making it a simple coaxial cable connector and the like.

Provided with: terminals; and a cover that supports the previously mentioned terminals; and An outer conductor housing covering at least a portion of the housing. The outer cover has a pair of installation surfaces on which the core wire of the coaxial cable is installed and can connect the core wire to at least a part of the terminal, and the core wires are crimped to the installation surface on each of the opposite sides sandwiching the installation surface. The crimping piece; the pair of crimping pieces respectively has a free end with a concave and convex shape along the setting surface on the opposite side of the opposing crimping piece, and at least a part of the free end is tied to the crimping piece above the setting surface. The free ends do complementary bite.

Description

Coaxial cable connector with core wire holding and fixing function

The present invention relates to a coaxial cable connector, and more particularly, to a coaxial cable connector having a core wire holding and fixing function.

Patent Documents 1 and 2 disclose an example of a conventional coaxial cable connector.

18 and 19 are schematic cross-sectional views of the coaxial cable connector disclosed in Patent Document 1. As shown in FIG. Such coaxial cable connectors are used in, for example, information devices such as mobile phones, smart phones, personal digital assistants (PDAs), and notebook computers, or electronic devices such as home appliances.

The housing of the connector is formed by a cylindrical outer conductor housing 101. The outer conductor housing 101 is formed by press-molding a metal plate material, and is formed of a crotch portion 106 having a longitudinal axis 105 as a center axis, and a holding portion 107 integrally extended from the crotch portion 106. A terminal 103 is arranged inside the cylindrical portion formed by the outer conductor housing 101 and is held in a state of being electrically coupled to the core wire 115 of the coaxial cable 104.

The holding part 107 is as shown in FIG. 18, and the connector is flat before assembly. The crotch 6 running on the longitudinal axis 105 stands upright, but when assembled, as shown in FIG. 19, it is bent along a direction perpendicular to the transverse axis 108 of the longitudinal axis 105. When the holding portion 107 is bent along a direction perpendicular to the horizontal axis 108 of the longitudinal axis 105, the outer conductor housing 101 is electrically connected to the outer conductor 112 of the coaxial cable 104. At this time, a portion 102C of the outer cover 10 is bent in the direction of the longitudinal axis 108 in accordance with the bending of the holding portion 107 through contact with the protrusion 107a provided on the inner wall of the outer conductor case 101, and the result is A part 102C of the bent outer cover 10 is arranged between the terminal 103 and the outer conductor housing 101 to prevent electrical connection between these. At this time, the core wire 115 of the coaxial cable 104 is fastened in a sandwiched state between a portion 102C of the housing 10 and the conductor connection portion 103 a of the terminal 103.

Patent Document 2 discloses that, unlike Patent Document 1, the bending direction of the outer conductor case or the bending direction of the cover accompanying the outer conductor is set to a direction orthogonal to the coaxial cable. More specifically, by setting the Coaxial cable connectors in which the opposite sides of the coaxial cable that are opposed to each other are arranged with a pair of insulated bends or shell bends, and the outer cover or the shell can be approached from both sides of the core wire. However, in order to support the core wire of a coaxial cable, terminals are mainly used here, and a structure in which the core wire of the coaxial cable is sandwiched between a pair of terminals facing each other with a leaf spring bent into a slightly zigzag shape.

[Prior technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent No. 2504704

[Patent Document 2] Japanese Patent Laid-Open No. 2002-324636

In the structure of Patent Document 1, the portion 102C to which the core wire 115 is fixed extends from the front end of the housing 102 to the size of the core wire 115 or the insulator 114 of the coaxial cable 104, so that the connector becomes larger .

On the other hand, according to the structure of Patent Document 2, the insulation bent portion or the case bent portion is approached from both sides of the core wire. Therefore, compared with the structure of Patent Document 1, although the device can be miniaturized, here, In order to support a core wire of a coaxial cable, a terminal having a complicated structure is used. As a result, there is a problem that the connector is enlarged.

The present invention has been developed in order to solve the problems of these previous connector structures, and the purpose is to provide a terminal that does not use a complicated structure, and mainly connects the core wire of the coaxial cable to the terminal through an outer cover, which can be held and fixed. Simple structure coaxial cable connector. Another object is to provide a miniaturized, low profile cable connector.

(1) The coaxial cable connector of the present invention has the following features, that is, it has: a terminal; and a cover that supports the preamble terminal; and an outer conductor housing that covers at least a part of the preface cover; the preface cover has: The core wire of the coaxial cable is provided and the core wire can be connected to the terminal mentioned above. At least a part of the installation surface connected to the installation surface, and the pair of crimp pieces for crimping the pre-core wire to the installation surface on the opposite sides sandwiching the installation surface; The opposite side of the sheet has a concave-convex free end along the preface setting surface, and at least a part of the preface free end is connected above the preface setting surface to complementary complementation with the free end of the other crimping piece.

Since at least a part of the concave-convex free end provided on the cover is a structure that complements each other above the installation surface, even if the core wires of the coaxial cable are scattered, for example, these core wires can still be placed on the installation surface and The closed cross-section space between the free ends is reliably maintained and fixed. In this case, in order to fix the core wire, it is not necessary to use a terminal having a complicated structure, for example. Therefore, the structure of the connector can be simplified. As a result, the connector can be miniaturized and short-backed. In addition, the free end is not fully engaged, and the core wire can be held and fixed, so it can be applied to cables of various diameters.

(2) The coaxial cable connector according to the above (1), wherein the outer conductor housing of the preamble has a pair of caulking portions arranged on each side opposite to each other across the preface installation surface, and the preamble is in pairs The crimping pieces are preferably covered from the outside by the caulking portions which are previously described in pairs.

According to this configuration, the core wire 14 of the coaxial cable 10 can be held and fixed at the same time as the caulking operation of the caulking portion, thereby simplifying the operation.

(3) The coaxial cable connector described in (1) or (2) above, wherein the pre-pressing crimping piece may also have a protruding portion protruding from the pre-setting surface on the butt surface of the pre-setting surface.

By providing the protruding portion on the crimping piece, the core wire of the coaxial cable can be more reliably fixed between the installation surface and the (protruding portion) of the crimping piece.

(4) The coaxial cable connector according to any one of (1) to (3) above, wherein the connection portion of the preamble terminal exposed from the preface installation surface may have a protrusion or depression from the preface installation surface. part.

By protruding or recessing the exposed portion of the terminal on the installation surface, the core wire of the coaxial cable can be more reliably fixed between the exposed surface and the crimping piece.

(5) The coaxial cable connector according to any one of (1) to (4) above, wherein the pre-press crimping piece may extend beyond the pre-set installation surface along the pre-set installation surface.

By extending the crimping piece beyond the installation surface, it is possible not only to prevent the core wire of the coaxial cable from being exposed, but also to prevent the portion extending to the opposite side from the contact portion of the terminal, that is, the insulator 13 or the external conductor 12 from being exposed.

(6) The coaxial cable connector according to any one of the above (1) to (5), wherein the free-form convex and concave ends provided on the crimp pieces previously described in pairs are respectively formed by The crimping piece is formed by at least one concave portion or convex portion having a predetermined thickness in the biting direction of the crimping piece. The at least one concave portion and the convex portion in the previous description are respectively a thick-walled portion and A combination of thin-walled portions along the previous bite direction is preferable.

By forming each recessed portion or raised portion by combining a thick-walled portion and a thin-walled portion, the coaxial cable can be more reliably held and fixed between the installation surface and the crimping piece, and it is expected to reduce the crimping piece with the counterpart Effect of bite force fruit.

(7) The coaxial cable connector according to the above (6), wherein the thick-walled portion and the thin-walled portion of the preface are connected to each of the concave portion and the convex portion of the preface, and are preferably provided alternately.

By forming the thick-walled portion and the thin-walled portion alternately, a more efficient force dispersion effect can be expected.

(8) The coaxial cable connector according to any one of (1) to (7) above, wherein the preamble terminal system may be integrally formed with the preamble housing.

(9) The coaxial cable connector according to any one of (1) to (8) above, wherein the coaxial cable connector described above may be a right-angle connector.

According to the present invention, it is possible to provide a coaxial cable connector with a simple structure in which a core wire of a coaxial cable can be surely connected to the terminal and held and fixed without using a terminal with a complicated structure. In addition, it is possible to provide a miniaturized, low profile coaxial cable connector.

1‧‧‧ coaxial cable connector

10‧‧‧ coaxial cable

11‧‧‧ insulation coating

12‧‧‧outer conductor

13‧‧‧ insulator

14‧‧‧core

20‧‧‧Terminal

24‧‧‧Exposed part (connection part)

40‧‧‧ Cover

41‧‧‧Setting surface

42‧‧‧Cylinder

46‧‧‧Body

48‧‧‧Exposed part (acupoint)

49‧‧‧ bulge

50‧‧‧ Crimping piece

70‧‧‧ Outer conductor housing

72‧‧‧ slightly cylindrical

80A, 80B‧‧‧Front side seam

83‧‧‧ Middle seam

84‧‧‧Back side caulking

85‧‧‧ configuration surface

[Fig. 1] A bottom plan view of a coaxial cable connector of the present invention to which a coaxial cable is connected.

[Fig. 2] An exploded perspective view of the coaxial cable connector of the present invention.

[FIG. 3] A bottom perspective view of the cover.

[Fig. 4] An oblique view of the upper side of the cover and an oblique side of the outer conductor case view.

[FIG. 5] A sectional view taken along the line A-A in FIG. 1. [FIG.

[Fig. 6] An illustration of a modification of the cover.

[Fig. 7] An explanatory diagram of an assembling process of a coaxial cable connector.

[Fig. 8] An explanatory diagram of an assembling process of a coaxial cable connector.

[Fig. 9] An explanatory diagram of an assembling process of a coaxial cable connector.

[Fig. 10] An explanatory diagram of an assembling process of a coaxial cable connector.

[Fig. 11] An explanatory diagram of a procedure for holding and fixing a core wire by a crimping piece.

[Fig. 12] An explanatory diagram of a procedure for holding and fixing a core wire by a crimping piece.

[Fig. 13] An explanatory diagram of a procedure for holding and fixing a core wire by a crimping piece.

[Fig. 14] An explanatory diagram of a procedure for holding and fixing a loose core wire by a crimping piece.

[Fig. 15] An explanatory diagram of a procedure for holding and fixing a relatively thick core wire by a crimping piece.

[Fig. 16] A comparative example with the crimping piece by the present invention shown in Fig. 14. [Fig.

[Fig. 17] A comparative example with the crimping piece by the present invention shown in Fig. 15. [Fig.

[Fig. 18] A schematic sectional view of a connector structure of a conventional coaxial cable connector.

[Fig. 19] A schematic cross-section of a connector structure of a conventional coaxial cable connector Face view.

A preferred embodiment of the present invention will be described with reference to the accompanying drawings. Although the so-called right-angle connector is described here, the present invention is not limited to this.

FIG. 1 is a bottom plan view showing the coaxial cable connector 1 of the present invention to which the coaxial cable 10 is connected, and FIG. 2 is an exploded perspective view showing the coaxial cable connector 1. The coaxial cable connector 1 has a bilaterally symmetrical shape with a central axis interposed, and mainly includes a conductive terminal 20, an insulating outer cover 40 integrally formed with the terminal 20, at least a portion of the covering 40, and at least a portion of the coaxial cable 10. Part of the outer conductor housing 70. In addition, since the terminal 20 and the cover 40 are integrally formed, they cannot be practically disassembled, but in FIG. 2, for convenience, the state in which they are disassembled is illustrated. When the coaxial cable connector 1 is assembled, the terminal 20 and the cover 40 or the coaxial cable 10 are arranged in the order from the bottom side to the upper side of the coaxial cable connector 1 in the direction of the arrow "β" in the figure, and are arranged outside in this order. The conductor case 70 is fixed to the outer conductor case 70.

The coaxial cable 10 has the same structure as the previous general coaxial cable, that is, from the outermost shell to the center, the coaxial cable 10 includes: an insulating coating 11, an outer conductor 12, an insulator 13, and a core wire 14. This structure is well known and will not be described in detail.

The terminal 20 is along the axial direction α of the coaxial cable 10 Has a predetermined length. A step portion 25 is provided near the middle of the main body portion 26. With the step portion 25, the rear end side (24) of the terminal 20 can be closer to the coaxial than the front end side (22) in the integrally formed outer cover 40. The cable 10, on the other hand, has the front end side (22) of the terminal 20 closer to the surface 78 of the outer conductor housing 70 than the rear end side (24). At the rear side (24) of the terminal 20, a connection portion 24 is provided which is in contact with the core wire 14 of the coaxial cable 10. The connection portion 24 is provided when the coaxial cable connector 1 is assembled, Core wire 14. Further, a contact portion 22 is provided on the front end side (22) of the terminal 20 to be in contact with the center terminal (not shown) of the target connector. The contact portion 22 is provided in a state of standing toward the contact side with the target connector, and is an elastic displacement portion 22 'formed by two pieces of the center terminal of the target connector which can be clamped in the center. And was formed. Of course, it is not necessary to form the elastic displacement portion 22 ', and for example, it may be formed by simply inserting a hole.

FIG. 3 is a bottom perspective view of the housing 40 integrally formed with the terminal 20, and FIG. 4 is a front perspective view thereof. FIG. 4 is a perspective view of the bottom side of the outer conductor housing 70, which is changed to a different angle from FIG. 2 for illustration. 5 is a cross-sectional view taken along the line A-A in FIG. 1.

The cover 40 mainly includes a main body portion 46, a cylindrical portion 42 provided on the tip side of the main body portion 46, and a cable fixing portion provided on the rear end side of the main body portion 46.

These parts are integrally formed with the terminal 20 by resin molding. However, a part of the terminal 20 remains exposed to the outside after being integrally formed. Of course, the exposed part of the terminal 20 includes the connection part 24, and also includes The elastic displacement portion 22 ′ of the contact portion 22 including a portion of the bottom side of the contact portion 22 and its peripheral portion, or a portion of the upper side of the contact portion 22, that is, the contact portion 22 with the terminal 20 in the thickness direction of the terminal 20 The part on the opposite side (upper side) from the side opposite to the outer conductor housing 70 is positioned. In addition, a part of the upper side of the contact portion 22 is also exposed, which is caused by a problem unique to the integral molding. That is, in order to surely suppress the swing of the terminal 20 against the flow of the resin during integral molding, a part of the terminal 20 must be pressed by a mold, but at this time, the elastic displacement portion 22 on the bottom side, which must be exposed, It is effective to press the upper side of the elastic displacement portion 22 'with a mold. However, the part pressed by the mold will remain as the exposed portion 27 caused by the resin through-hole 48, and therefore, the exposed portion 27 of the terminal 20 is in the thickness direction of the terminal and includes contact with the terminal 20. The person 22 is positioned on the opposite side.

The main body portion 46 has a slightly cubic shape as a whole, but has a protrusion 47 protruding from the main body portion 46 toward the approaching side of the target connector. The protruding portion 47 can be used as a portion that supplements the discontinuous portion 73 of the slightly cylindrical portion 72 of the outer conductor housing 70.

The cylindrical portion 42 on the tip side of the main body portion protrudes from the upper surface portion 45 toward the contact side with the target connector, and a contact portion 22 of the terminal 20 is arranged at the center thereof. When mating with the target connector, the cylindrical portion 42 is inserted into the cylindrical housing of the target connector, and at the same time, the contact portion 22 disposed at the center of the cylindrical portion 42 is disposed in a circular shape. A center terminal (not shown) in the center of the cartridge housing is inserted and contacted. Three protrusions 44 extending from the upper surface portion 45 of the cylindrical portion 42 to the tip side and the left and right sides are possible. It is used to position the outer cover 40 on the outer conductor housing 70.

The cable fixing portion on the rear end side of the main body portion is provided with an installation surface 41 on which the core wire 14 of the coaxial cable 10 is provided. Even after the terminal 20 and the cover 40 are integrally formed, the connection portion 24 of the terminal 20 is in a state exposed from the installation surface 41. Although the installation surface 41 is slightly flat, the connection portion 24 may be designed to protrude or be recessed from the installation surface 41. Thereby, the contact between the terminal 20 and the core wire 14 becomes reliable. In the illustrated example, the recessed portion 43 is designed.

In order to fix the core wire 14, a pair of crimping pieces 50A and 50B are provided at the cable fixing portion. These pairs of crimping pieces 50A and 50B are supported on only one side on the side opposite to each other with the setting surface 41 interposed therebetween, and each support portion 53A and 53B can be provided toward the core wire 14. Its setting surface 41 is zigzag.

The surface facing the installation surface 41 is a crimping surface. The crimping surface is formed by the crimping pieces 50A and 50B. In order to more reliably crimp and fix the core wire 14, the opposite side of each of the crimping pieces 50A and 50B facing the crimping pieces 50B and 50A on the opposite side is provided with a free end having a concave and convex shape. These rugged free ends are provided along the installation surface 41 (after the coaxial cable 10 is arranged, along the axial direction α of the coaxial cable 10). The free ends of the crimping pieces 50A and 50B have at least one protrusion (52A, 54B, 55B) and at least one depression (54A, 55A, 52B) along the installation surface 41, respectively. These protrusions (52A, 54B, 55B) and depressions (54A, 55A, 52B) are arranged adjacent to each other along the installation surface 41, and are continuously arranged in each of the crimping pieces 50A, 50B. It will form bumps Free end. For example, in the crimping piece 50A, an uneven free end is formed by one protruding portion 52A and two recessed portions 54A and 55A sandwiching the one protruding portion 52A along the installation surface 41 from both sides. On the other hand, in the pressure-bonding piece 50B, a concave portion 52B and two protrusion portions 54B and 55B sandwiching the one concave portion 52B along the installation surface 41 from both sides are formed into an uneven shape. Free end. In addition, it is not necessary to provide three (or more) projections or depressions as in the embodiment shown in FIG. 3 and the like. For example, as shown in FIG. 6, at the free ends of each of the crimping pieces 50A and 50B. In each of them, one recessed portion 54A ′, 52B ′ and one protruding portion 54B ′, 52A ′ may be formed. Here, members corresponding to the embodiment of FIG. 3 and the like are assigned the same reference numerals as those of FIG. 6.

The depressions and protrusions of each of the crimping pieces 50A and 50B have a predetermined thickness in the biting direction of the pair of crimping pieces 50A and 50B, respectively. For example, the recessed portions 54A and 55A of the crimping piece 50A are provided with thick walls along the occlusal direction, whereas the protruding portions 52A are provided with thin walls along the occlusal direction. In addition, the protrusions 54B and 55B of the crimping piece 50B are provided with thick walls along the occlusal direction, whereas the recessed portions 52B are provided with thin walls along the occlusal direction.

Here, in the pressure-bonding piece 50A, the thin-walled protrusion 52A located at the center is projected toward the abutting side compared to the thick-walled depressions 54A and 55A. In contrast, in the pressure-bonding piece 50B, The thin-walled recessed portion 52B located in the center is sunken toward the abutting side compared to the thick-walled protrusions 54B and 55B. Therefore, these crimping pieces 50A and 50B are rotated toward the installation surface 41 with the support side 53 as the center. At least these free ends Partly, it is complementary to engage with the free end of the other crimping piece above the installation surface 41. In addition, as described above, by forming each of the thin-walled protrusions 52A or 52B with the thick-walled depressions 54A, 55A or the protrusions 54B, 55B, the thickness can be increased. The wall portion is used as a stopper to prevent damage to the thin-walled portion. In addition, by providing a thin-walled portion, an air layer can be provided and impedance matching can be easily performed. Furthermore, by forming the thick-walled portion and the thin-walled portion alternately, when the free ends are docked with each other, a more efficient force dispersion effect can be expected. In the example shown in the figure, the abutting surfaces 51A and 51B abutting the installation surface 41 in each of the crimping pieces 50A and 50B are shown flat, but in order to more surely fix the abutment surface 41 and the crimping piece 50A, Between 50B, abutment surfaces 51A and 51B of these crimping pieces 50A and 50B may be provided with protrusions (not shown) protruding toward the installation surface 41. Furthermore, as shown in the drawing, the rear end side of each crimping piece 50A, 50B may be extended beyond the installation surface 41 along the installation surface 41. For example, the crimping piece 50A is provided along the setting surface 41 and extends beyond the setting surface 41 and protrudes to the crimping piece 50B side while projecting portions 56 and 57. On the other hand, the crimping piece 50B is provided along the The sloping projections 57 that extend beyond the installation surface 41 while facing the installation surface 41 can not only prevent the core wire 14 from being exposed, but also make the crimp pieces on the insulator 13 or the outer conductor 12. A part of 50A and 50B is located on it, which can prevent them from being exposed. In addition, one of the crimping pieces 50A and 50B can also be made by changing a plurality of thin-walled portions along the thickness direction of the thick-walled portion (or thin-walled portion) to change the protruding degree of the other crimping piece. A stepped thin portion is provided on the other side of the pressure-bonding pieces 50A and 50B. Thereby, the same effect as that of the embodiment described above can be obtained.

The outer conductor case 70 is formed by punching and bending a sheet of metal. The outer conductor housing 70 mainly includes an arrangement surface 85 on which the cover 40 or the coaxial cable 10 is arranged, a slightly cylindrical portion 72 provided on the tip side of the arrangement surface 85, and a plurality of caulking portions 80, 83, 84. The slightly cylindrical portion 72 is a portion that is connected to a cylindrical housing (not shown) of the target connector when fitted into the target connector. The tip side of the arrangement surface 85 has a shovel shape as a whole, and the slightly cylindrical portion 72 is surrounded by the standing portion 74 constituting a part of the spoon portion, thereby strengthening the strength of the slightly cylindrical portion 72.

As shown in detail in FIG. 4, the outer cover 40 is formed on a surface 45 opposite to the outer conductor case 70 and has a raised portion 49 that is raised toward the outer conductor case 70. The raised portion 49 has, for example, a cross shape as a whole, and is formed by two straight portions having a predetermined width, with the through-hole 48 where the exposed portion 27 of a portion of the terminal 20 is exposed, in particular, one straight line. The portion extends along the axial direction α of the coaxial cable 10 from the front end side of the terminal 20 to a length of the step portion 25 or more. Corresponding to the raised portion 49 of the cover 40, the outer conductor housing 70 is provided on a surface 78 opposite to the surface 45 of the cover 40, and is provided with a cross shape recessed toward the side opposite to the side opposite to the cover 40. The depression 79. The raised portion 49 is provided with the raised portions 49 and the recessed portions 79 which can be accommodated in the recessed portion 79. When the outer conductor housing 70 is provided with the outer cover 40, the terminal 20 and the outer cover 40 can be formed as one body. The exposed portion 27 of the terminal 20 caused by the generated through-hole 48 is separated from the outer conductor housing 70 and can be exposed. The insulation distance between the portion 27 and the outer conductor case 70 is increased. Therefore, the terminal 20 and the outer conductor housing 70 can be surely insulated with a simple structure, and the connector can be made short. In addition, by providing the raised portion 49 and the recessed portion 79, when the cover 40 is disposed on the outer conductor case 70, the raised portion 49 is fitted into the recessed portion 79, and the outer cover 40 can be easily positioned on the outer conductor case 70 position. In addition, the shape of the raised portion 49 or the recessed portion 79 is not limited to a cross, and may be, for example, a triangular shape or a quadrangular shape. Further, the degree of depression of the depressed portion 79 may be larger than that of the raised portion 49. Moreover, the raised portion 49 does not necessarily look like the embodiment shown in FIG. 4, and completely covers the periphery of the edge of the through-hole 48, but the raised portion 49 may not be provided near the edge of the through-hole 48 and only A bulge is provided at a portion far from the edge. The important point is that the raised portion 49 and the recessed portion 79 may be used to separate the exposed portion 27 from the outer conductor housing 70, and for example, the cross portion may be formed discontinuously. In particular, since the outer conductor case 70 is formed of a plate-like metal, the recessed portion 79 can be easily formed by press working, and the manufacturing cost can be reduced. The recessed portion 79 also plays a role of reinforcing the strength of the outer conductor case 70.

The slightly cylindrical portion 72 is connected to the arrangement surface 85 in a state where the bent portion 72 'is bendable. After the cover 40 is arranged at a predetermined position of the outer conductor housing 70, the slightly cylindrical portion 72 is bent toward the arrangement surface 85. Note that FIG. 1 to FIG. 6 all show a state in which the slightly cylindrical portion 72 is folded. When the slightly cylindrical portion 72 is tortuous, left and right protrusions extending from the surface portion 45 of the cylindrical portion 42 between the notch 71 of the slightly cylindrical portion 72 and the surface 78 of the outer conductor housing 70 facing the cover 40. 44 points Do not pinch in, so that the outer cover 40 can be easily fixed to the outer conductor housing 70. Similarly, the protrusion to which the front protrusion 44 'is engaged is provided inside the bent portion 72' of the outer conductor housing 70.

The caulking portion is formed as a pair of caulking portions arranged on each of the sides facing each other across the arrangement surface 85. Here, a total of three sets are provided along the axial direction α of the coaxial cable 10, that is, the front caulking portion 80, the middle caulking portion 83, and the rear caulking portion 84. The front caulking portions 80A and 80B are mainly required for caulking the pair of crimping pieces 50A and 50B from the outside, and the middle caulking portions 83A and B are mainly necessary for caulking the outer conductor 12 and the back caulking portion The 84A and B series are mainly required for caulking the insulation coating 11.

The assembly process of the coaxial cable connector 1 will be described with reference to FIGS. 7 to 10. In addition, both FIG. 9 and FIG. 10 show the state after the assembly is completed. In FIG. 9, for convenience, a part of the front caulking portion 80 is removed, and the states of the crimping pieces 50A and 50B are shown.

As shown in FIG. 7, after the outer cover 40 is attached to the outer conductor housing 70, as shown in FIG. 8, the coaxial cable 10 is positioned on the outer cover 40 or the outer conductor housing 70. At this time, the core wire 14 of the coaxial cable 10 is arranged on the installation surface 41 of the outer cover 40, and the outer conductor 12 of the coaxial cable 10 is arranged at the corresponding position of the intermediate caulking portion 83, and the insulation of the coaxial cable 10 is also provided. The cover 11 is arranged at a position corresponding to the rear caulking portion 84.

Next, as shown in FIGS. 9 and 10, the front caulking portions 80A, 80B, the middle caulking portion 83, and the rear caulking portion 84 are respectively covered with the outer cover. 40 or coaxial electric continued 10 for caulking. At this time, each of the crimping pieces 50A and 50B is bent toward the installation surface 41 through contact with the front caulking portions 80A and 80B. As a result, the core wire 14 of the coaxial cable 10 is sandwiched between the crimping pieces 50A and 50B. It is fixed to the installation surface 41 by it. According to this configuration, the holding and fixing of the core wire 14 of the coaxial cable 10 can be performed simultaneously with the caulking operation of the front caulking portions 80A and 80B, thereby simplifying the operation. In addition, the insulator 13 of the coaxial cable 10 is covered only by the protrusions 56 and 57 of the pair of crimping pieces 50A and 50B when the pair of crimping pieces 50A and 50B are twisted. Will be especially present.

When the middle caulking portion 83 caulks the outer conductor 12, the outer conductor housing 70 is electrically connected to the outer conductor 12 through the contact between the middle caulking portion 83 and the outer conductor 12. As a result, when the coaxial cable connector 1 is mated with the target connector, the substantially cylindrical portion 72 of the outer conductor housing 70 is connected to the cylindrical housing of the target connector, and the outer conductor 12 of the coaxial cable 10 and the target connector are connected. The cylindrical casing is electrically connected. In the same way, the back caulking portion 84 caulks the insulating coating 11, but of course, no electrical connection occurs here. In addition, as can be seen from FIG. 8 and the like, even after the coaxial cable connector 1 is assembled, the slightly cylindrical portion 72 is tied in the cylindrical direction of the slightly cylindrical portion 72 (the direction of the arrow “β” in FIG. 2) and is coaxial with the coaxial portion. The cables 10 do not overlap, so that the inch method does not become larger in the direction opposite to the outer conductor housing 70 and the outer cover 40, so that the connector can be made shorter.

Next, referring also to FIGS. 7 to 10 and 11 With reference to FIG. 17, the method of holding and fixing the core wire 14 of the coaxial cable 10 due to the front caulking portions 80A and 80B or the crimping pieces 50A and 50B will be described in detail.

FIG. 11 is a view corresponding to FIG. 8, and is a diagram showing a state before the crimping pieces 50A and 50B are bent toward the installation surface 41. FIG. 12 is a view showing each of the crimping pieces 50A and 50B toward the installation surface 41. FIG. 13 is a diagram showing a stage in the middle of bending. FIG. 13 is a view corresponding to FIG. 10 (FIG. 9). Each crimping piece 50A, 50B is bent toward the installation surface 41, and the core wire 14 of the coaxial cable 10 is completely Illustration of the state of being held and fixed. In each figure, (a) is a bottom plan view, and (b) is a cross-sectional view taken along the line A-A in each figure.

As clearly shown in (b) of each figure, the front side caulking portions 80A and 80B respectively have a bottom portion 80a, and a side portion 80b standing from the bottom portion 80a to the contact side with the counterpart connector; and the crimping piece 50 The wing portion 80c can be bent at a predetermined position 80d of the side portion 80b. In the bent portion 80d, a locking portion 81 is formed by tapping from the outside toward the arrangement surface 85 side. By locking the protruding portion 58 of the cover 40 with the locking portion 81, the cover 40 can be locked. It is fixed to the outer conductor case 70.

As shown in FIG. 11, after the coaxial cable 10 is disposed on the outer cover 40 or the outer conductor housing 70, as shown in FIG. 12, the front side caulking portions 80A and 80B, especially the part of the wing portion 80c, are placed on the outer cover 40 or the coaxial cable. 10 Perform caulking. At this time, the pair of crimping pieces 50A and 50B are bent toward the installation surface 41 in a state of being respectively covered with the wings 80c of the front caulking portions 80A and 80B from the outside. In this way, the configuration in which the front caulking portions 80A and 80B are moved together with the crimping pieces 50A and 50B can be coaxial. The holding and fixing of the core wire 14 of the cable 10 is performed simultaneously with the caulking operation of the caulking portion, which can simplify the operation. When the crimping pieces 50A and 50B are bent, at least a part of the concave and convex free ends of the crimping pieces 50A and 50B are complementarily engaged with each other above the installation surface 41, and the installation surface 41 and the free end can be engaged with each other. A closed section space "K" is formed between them. Therefore, as shown in FIG. 14, for example, even when the core wires 14 a of the coaxial cable 10 are in a dispersed state, these core wires 14 a can be surely grasped in the closed cross-sectional space “K” between the installation surface 41 and the free end. After that, it can be maintained and fixed. Also, as shown in FIG. 15, for example, even when the core wire 14 b of the coaxial cable 10 is thick, the crimping piece 50 can be located there near the top of the core wire 14 b of such a size, and the core wire 14 b can be surely pressed from above. Into. In addition, assuming that the crimping pieces 50A and 50B have free ends with irregularities as in the present invention, a closed cross-sectional space cannot be formed between the installation surface 41 and the free ends until the free ends are completely abutted to each other. As shown in FIG. 16, for example, in a state where the core wires 14 a of the coaxial cable 10 are loosened, it is possible that a part of the core wires 14 a cannot be captured and pushed in by the crimping piece 50. Since the crimping pieces 50 cannot be located directly above the core wire 14b, as shown in FIG. 17, for example, when the core wire 14b of the coaxial cable 10 is thick, the core wire 14b may not be pushed in from above.

As described above, according to the present configuration, the coaxial cable can be more reliably held and fixed even if the core wire of the coaxial cable is in a dispersed state and the allowable range of the core wire diameter is large. In this case, in order to fix the core wire, it is not necessary to use, for example, a terminal with a complicated structure. The structure of the connector is simplified, and as a result, the connector can be made smaller and shorter.

In addition, although not shown in particular, in the crimping pieces 50A and 50B, the abutting surface 51 that abuts the installation surface 41 may be provided with a protruding portion that protrudes toward the installation surface 41. By providing such a protruding portion, the core wire 14 of the coaxial cable 10 can be more reliably fixed between the installation surface 41 and the crimping pieces 50A and 50B (protruding portions).

Of course, this invention is not limited to the said embodiment, Of course, various changes are possible. Therefore, the scope of the claims of the present invention includes various modifications that are usually performed by the practitioner. For example, the terminal 20 and the cover 40 are not necessarily integrally formed, as long as the terminal 20 is provided on the cover 40.

[Possibility of industrial use]

It can be widely applied to a connector having a pair of crimp pieces supported on each side facing each other across the installation surface.

Claims (9)

A coaxial cable connector is characterized by comprising: a terminal; and a cover for supporting the pre-terminated terminal; and an external conductor housing covering at least a part of the preamble for the predecessor; the preamble for the predecessor is provided with: The installation surface on which the core wire is connected to at least a part of the preamble terminal, and the pair of crimp pieces for crimping the preform core wire to the installation surface on the opposite sides sandwiching the installation surface; The opposite side of the opposing crimping piece has a free end with a concave and convex shape along the preface, and at least a part of the free end of the preface is attached to the free end of the opposing crimping piece above the preparatory setting surface to complementarily engage. The coaxial cable connector according to claim 1, wherein the preamble outer conductor housing has a pair of caulking portions arranged on each side facing each other across the preface installation surface, and a prepressed pair of crimp pieces. The systems are covered from the outside by the caulking portions described in pairs above. The coaxial cable connector according to claim 1 or 2, wherein the pre-pressing crimping piece is on a butting surface with the pre-setting surface and has a protruding portion protruding toward the pre-setting surface. The coaxial cable connector according to any one of claims 1 or 2, wherein the connection portion of the preamble terminal exposed from the preface installation surface has a portion protruding or recessed from the preface installation surface. The coaxial cable connector according to any one of claims 1 or 2, wherein the pre-pressing crimping piece extends beyond the pre-setting surface along the pre-setting surface. The coaxial cable connector according to any one of claims 1 or 2, wherein the free ends of the concave and convex shapes provided on the crimp pieces previously described in the pair are respectively in the biting directions of the crimp pieces previously described in the pair. It has a predetermined thickness; at least one concave portion and convex portion in the preamble are respectively formed by a combination of a thick-walled portion along the pre-engagement direction and a thin-walled portion along the pre-engagement direction. The coaxial cable connector according to claim 6, wherein the thick-walled portion and the thin-walled portion of the preamble are alternately provided in each of the concave portion and the convex portion of the preamble. The coaxial cable connector according to any one of claims 1 or 2, wherein the preamble terminal is integrally formed with the preamble housing. The coaxial cable connector according to any one of claims 1 or 2, wherein the coaxial cable connector described above is a right-angle connector.