TWI680617B - L-type coaxial connector and L-type coaxial connector with coaxial cable - Google Patents

Abstract

The present invention provides an L-shaped coaxial connector with a coaxial cable capable of suppressing deterioration of electrical characteristics.

An L-shaped coaxial connector with a coaxial cable includes: a coaxial cable having a center conductor portion and an outer conductor portion arranged around the center conductor portion; an internal terminal connected to the center conductor portion of the coaxial cable; and an external terminal connected thereto An external conductor portion of the coaxial cable; and an insulating member disposed between the internal terminal and the external terminal, wherein the external terminal includes a holding portion extending along the coaxial cable and the insulating member and holding the same, and The holding joint faces the joint joint portion of the joint filling of the coaxial cable, and the joint joint portion has a first claw portion joined to the insulating member around the portion where the central conductor portion of the coaxial cable and the internal terminal are connected, and is joined to the coaxial The second claw portion of the outer conductor portion of the cable is formed so as to extend in the axial direction of the coaxial cable to a position where it is joined to the outer conductor portion of the coaxial cable.

Description

   L-type coaxial connector and L-type coaxial connector with coaxial cable   

The invention relates to an L-shaped coaxial connector and an L-shaped coaxial connector with a coaxial cable attached.

Conventionally, an L-shaped coaxial connector to which a coaxial cable is connected and an L-shaped coaxial connector to which a coaxial cable is attached are known (for example, refer to Patent Document 1).

The L-shaped coaxial connector of Patent Document 1 includes an internal terminal connected to the center conductor portion of the coaxial cable, an external terminal (housing) connected to the external conductor portion of the coaxial cable, and an insulating member (insulating sleeve), It is arranged between the internal terminal and the external terminal. When the coaxial connector is connected to the target connector, the internal terminal and the external terminal of the coaxial connector are fitted to the respective terminals of the corresponding target connector.

In the coaxial connector of Patent Document 1, a caulking joint portion for fixing an insulating member and an internal terminal is provided on an external terminal as a housing. The caulking joint is composed of three pairs of claws that can be bent in the circumferential direction of the coaxial cable. One of the pair of claw portions is in contact with the outer conductor portion of the coaxial cable and is conducted. The other two pairs of claws only contact and hold the insulation portion, and do not conduct electricity with the coaxial cable.

    [Prior technical literature]         [Patent Literature]    

[Patent Document 1] Japanese Patent Laid-Open No. 2015-211037

In the coaxial connector of Patent Document 1, around the portion of the coaxial cable other than the center conductor portion in the axial direction of the coaxial cable, the external terminal as a housing functions as a ground electrode, but contacts the outer conductor portion of the coaxial cable. There is a gap between the claw portion and the claw portion contacting the insulating portion. This gap portion becomes an electrical crack, and the electromagnetic field may be disturbed, and the electrical characteristics may be deteriorated.

Therefore, an object of the present invention is to solve the above problems and provide an L-shaped coaxial connector capable of suppressing deterioration of electrical characteristics and an L-shaped coaxial connector with a coaxial cable attached.

In order to achieve the above object, the L-shaped coaxial connector with a coaxial cable according to the present invention includes: a coaxial cable having a central conductor portion and an outer conductor portion arranged around the central conductor portion; and an internal terminal connected to the coaxial cable. The center conductor portion; an external terminal connected to the external conductor portion of the coaxial cable; and an insulating member disposed between the internal terminal and the external terminal, wherein the external terminal is provided with The coaxial cable and the insulating member extend and hold the holding portion, and a caulking joint portion from the holding portion toward the coaxial cable caulking, wherein the caulking joining portion has the center conductor of the coaxial cable. The periphery of the portion connected to the internal terminal is connected to the first claw portion of the insulating member and the second claw portion connected to the outer conductor portion of the coaxial cable. The first claw portion is connected to the coaxial line. The shape of the cable extending in the axial direction to the position where the outer conductor portion of the coaxial cable is joined to make.

The L-shaped coaxial connector of the present invention is connected to a coaxial cable. The coaxial cable includes a center conductor portion and an outer conductor portion disposed around the center conductor portion. The L-type coaxial connector includes an internal terminal connected to the coaxial cable. The center conductor portion of the cable; an external terminal connected to the external conductor portion of the coaxial cable; and an insulating member disposed between the internal terminal and the external terminal, the external terminal being provided along the coaxial cable The above-mentioned insulating member extends and holds such a holding portion, and a caulking joint portion extending from the holding portion toward the coaxial cable caulking, wherein the caulking joining portion is provided between the central conductor portion of the coaxial cable and the The periphery of the portion to which the internal terminal is connected is joined to the first claw portion of the insulating member and the second claw portion connected to the outer conductor portion of the coaxial cable. The first claw portion is connected to the shaft of the coaxial cable. It is formed in a direction extending to a position where the outer conductor portion of the coaxial cable is engaged.

According to the L-shaped coaxial connector and the L-shaped coaxial connector with a coaxial cable according to the present invention, deterioration of electrical characteristics can be suppressed.

2‧‧‧Plug cable (L-shaped coaxial connector with coaxial cable)

4‧‧‧ coaxial cable

6‧‧‧L-type coaxial connector

8‧‧‧ Object Connector

9‧‧‧internal terminal (center socket)

10‧‧‧ Center conductor (core wire)

11‧‧‧External Terminal

12‧‧‧ insulator

13‧‧‧Insulating member (resin mold case)

14‧‧‧External Conductor

16‧‧‧Insulation film (skin)

18‧‧‧internal terminal (center pin)

20‧‧‧Insulating member (insulating sleeve)

22‧‧‧External Terminal (Case)

24‧‧‧The first terminal

26‧‧‧Second terminal section

28‧‧‧ insertion hole

28A‧‧‧The first opening

28B‧‧‧The second opening

30‧‧‧Second Unit

32‧‧‧ tube

34‧‧‧ Holding Department

35‧‧‧Fixed section

36‧‧‧Seam Joint

38‧‧‧1st claw

40‧‧‧ 2nd claw

42‧‧‧3rd claw

44‧‧‧Basic Department

46‧‧‧ protrusion

48‧‧‧ front end

50‧‧‧Cylinder

51‧‧‧ bottom end

52‧‧‧ convex (front end)

FIG. 1 is a perspective view of a plug cable according to the embodiment.

Fig. 2 is a perspective view of an object connector connected to the plug cable of the embodiment.

Fig. 3 is a plan view of the plug cable of the embodiment.

Fig. 4 is a bottom view of the plug cable of the embodiment.

Fig. 5 is an exploded perspective view of the plug cable of the embodiment.

Fig. 6 is a perspective view showing a state before the plug cable of the embodiment is completed.

FIG. 7 is a top view of FIG. 6.

Fig. 8 is a sectional view taken along the line X-X in Fig. 7.

Fig. 9A is a perspective view of an internal terminal of the plug cable used in the embodiment.

Fig. 9B is a plan view of the internal terminals of the plug cable used in the embodiment.

Fig. 9C is a longitudinal sectional view of an internal terminal of the plug cable used in the embodiment.

According to a first aspect of the present invention, there is provided an L-shaped coaxial connector with a coaxial cable, including: a coaxial cable having a central conductor portion and an outer conductor portion arranged around the central conductor portion; and an internal terminal to which The central conductor portion of the coaxial cable; an external terminal connected to the external conductor portion of the coaxial cable; and an insulating member disposed between the internal terminal and the external terminal, characterized in that the external terminal A caulking joint portion is provided to extend and hold the coaxial cable and the insulating member, and a caulking joint portion caulking from the retaining portion to the coaxial cable is provided. The caulking joint portion is provided on the coaxial cable. The periphery of a portion where the center conductor portion and the internal terminal are connected is joined to a first claw portion of the insulating member and a second claw portion connected to the outer conductor portion of the coaxial cable. The first claw portion is Extending in the axial direction of the coaxial cable to a position where the outer conductor portion of the coaxial cable is joined The formation of the way.

According to this structure, as compared with the case where the first claw portion is not in conduction with the external conductor portion, electrical cracks in the axial direction of the coaxial cable can be avoided, and deterioration in electrical characteristics can be suppressed.

According to a second aspect of the present invention, there is provided the L-shaped coaxial connector with a coaxial cable according to the first aspect, wherein a portion where the first claw portion contacts the insulating member is set to be higher than the first claw portion. The portion that contacts the outer conductor portion and is further away from the holding portion. According to this structure, the first claw portion that contacts the insulating member can be extended in the axial direction of the coaxial cable to contact the external conductor portion, and the first claw portion can be brought into contact with the external conductor portion by pressing. Accordingly, even if a simple structure is used, the contact between the first claw portion and the external conductor portion can be surely ensured.

According to a third aspect of the present invention, there is provided an L-shaped coaxial connector connected to a coaxial cable. The coaxial cable includes a center conductor portion and an outer conductor portion disposed around the center conductor portion. The L-type coaxial connector includes: A terminal connected to the central conductor portion of the coaxial cable; an external terminal connected to the external conductor portion of the coaxial cable; and an insulating member disposed between the internal terminal and the external terminal, the external terminal A caulking joint portion is provided to extend and hold the coaxial cable and the insulating member, and a caulking joint portion caulking from the retaining portion to the coaxial cable is provided. The caulking joint portion is provided on the coaxial cable. The periphery of a portion where the central conductor portion and the internal terminal are connected is bonded to a first claw portion of the insulating member, and a second claw portion and the first claw portion to the outer conductor portion of the coaxial cable, It is extended in the axial direction of the coaxial cable to the outer conductor portion of the coaxial cable. Forming the opposite way.

According to this structure, as compared with the case where the first claw portion is not in conduction with the external conductor portion, electrical cracks in the axial direction of the coaxial cable can be avoided, and deterioration in electrical characteristics can be suppressed.

According to a fourth aspect of the present invention, there is provided the L-shaped coaxial connector according to the third aspect, wherein a portion where the first claw portion contacts the insulating member is set to contact the outer conductor portion more than the first claw portion. The distance from the holding portion. According to this structure, the first claw portion that contacts the insulating member can be extended in the axial direction of the coaxial cable to contact the external conductor portion, and the first claw portion can be brought into contact with the external conductor portion by pressing. Accordingly, even if a simple structure is used, the contact between the first claw portion and the external conductor portion can be surely ensured.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

(Implementation form)

FIG. 1 is a perspective view showing an L-shaped coaxial connector (hereinafter referred to as a plug cable) 2 with a coaxial cable according to the embodiment.

The plug cable 2 shown in FIG. 1 includes a coaxial cable 4 and an L-shaped coaxial connector (first connector) 6 to which the coaxial cable 4 is connected. When the plug cable 2 is used, the L-shaped coaxial connector 6 is fitted into the target connector (second connector) 8 shown in FIG. 2.

In this embodiment, the target connector 8 shown in FIG. 2 includes an internal terminal (center socket) 9, an external terminal 11, and an insulating member disposed between the internal terminal 9 and the external terminal 11. (Resin mold case) 13.

The L-shaped coaxial connector 6 shown in FIG. 1 is connected to the coaxial cable 4. On the other hand, the target connector 8 shown in FIG. 2 has a substrate (not shown) mounted on the back of the external terminal 11. That is, the combination of the plug cable 2 and the target connector 8 of this embodiment is different from the so-called "board-to-board" connection between the "substrate" and the "substrate", but a connection form that connects the "coaxial cable" and the "substrate".

The internal terminal 9 shown in FIG. 2 has a female shape for receiving a male-shaped terminal. Thereby, the target connector 8 becomes a socket with respect to the plug cable 2 shown in FIG. In addition, the male shape has a contact surface on the outer peripheral portion, and the female shape has a contact surface on the inner peripheral portion.

Next, each component of the plug cable 2 will be described using FIGS. 1, 3 to 8. FIG. 3 is a top view of the plug cable 2, FIG. 4 is a bottom view of the plug cable 2, and FIG. 5 is an exploded perspective view of the plug cable 2. FIG. 6 is a perspective view showing the components shown in FIG. 5 after being arranged in the plug cable 2 and before fixing, FIG. 7 is a plan view of FIG. 6, and FIG. 8 is a cross-sectional view taken along line X-X of FIG. 7.

As shown in FIG. 5 and the like, the coaxial cable 4 includes a center conductor portion (core wire) 10, an insulator 12, an outer conductor portion 14, and an insulating film (skin) 16. In the axial direction A of the coaxial cable 4, the central conductor portion 10, the insulator 12, the outer conductor portion 14, and the insulating coating 16 are sequentially exposed from the front end side of the coaxial cable 4.

An internal terminal 18 of an L-shaped coaxial connector 6 described later is connected to the center conductor portion 10, and an external terminal 22 of an L-shaped coaxial connector 6 described later is connected to the external conductor portion 14.

The L-shaped coaxial connector 6 to which the coaxial cable 4 is connected includes an internal terminal (center pin) 18, an insulating member (insulating sleeve) 20, and an external terminal (housing) 22.

The internal terminal 18 is a terminal connected to the center conductor portion 10 of the coaxial cable 4 as described above. Similarly, the external terminal 22 is a terminal connected to the external conductor portion 14 of the coaxial cable 4. The internal terminal 18 and the external terminal 22 are electrically insulated from each other by an insulating member 20.

The internal terminal 18 in this embodiment is made of a metal plate. Similarly, the external terminal 22 is also made of a metal plate. The internal terminal 18 and the external terminal 22 are made of conductive members. In this embodiment, they are formed by plating nickel and gold on the surface of a copper alloy material.

The insulating member 20 is a member which is disposed between the internal terminal 18 and the external terminal 22 and electrically isolates the internal terminal 18 and the external terminal 22 from each other. The insulating member 20 is formed using a resin such as a liquid crystal polymer as a main material.

As shown in FIG. 5 and the like, the internal terminal 18 includes a first terminal portion 24 and a second terminal portion 26.

The first terminal portion 24 is a terminal portion inserted into the internal terminal 9 of the target connector 8 described above. The first terminal portion of this embodiment is a male type having a contact surface on the outer peripheral portion. By using the internal terminal 18 as a male type (pin type), the size can be reduced compared to a case where the internal terminal 18 is a female type (socket type) like the internal terminal 9 of the target connector 8.

The first terminal portion 24 in this embodiment is a substantially cylindrical member extending in a direction orthogonal to the axial direction A of the coaxial cable 4, that is, the insertion direction B.

In this embodiment, an insertion hole 28 is provided in the first terminal portion 24. The insertion hole 28 is a hole into which a protruding portion 46 of the insulating member 20 described later is inserted. By inserting the protruding portion 46 into the insertion hole 28, it is possible to suppress a decrease in the strength accompanying the downsizing of the first terminal portion 24, and to increase the strength of the first terminal portion 24. A more detailed shape of the first terminal portion 24 will be described later.

The second terminal portion 26 is a plate-shaped terminal portion extending in a lateral direction from the first terminal portion 24. The second terminal portion 26 is connected to the center conductor portion 10 of the coaxial cable 4 in an assembled state shown in FIGS. 6 and 7. The second terminal portion 26 in this embodiment is a flat plate-shaped member perpendicular to the insertion direction B.

A two-stranded portion 30 is provided at the front end of the second terminal portion 26. In the assembled state shown in FIGS. 6 and 7, the two strands 30 are arranged so as to sandwich the central conductor portion 10 of the coaxial cable 4 in the width direction C. The width direction C is a direction perpendicular to both the axial direction A and the insertion direction B. The two-stranded portion 30 and the center conductor portion 10 are fixed to each other by welding.

Next, as shown in FIG. 5 and the like, the insulating member 20 includes a base portion 44, a protruding portion 46, and a tip portion 48.

The base portion 44 is a member that becomes the foundation of the insulating member 20. The base portion 44 is housed in the external terminal 22 as a case. In the base portion 44, a protruding portion 46 and a tip portion 48 are formed.

The protruding portion 46 is a member protruding from the base portion 44 in the insertion direction B. The protruding portion 46 has a function of reinforcing the strength of the first terminal portion 24 by being inserted into the insertion hole 28 of the first terminal portion 24 of the internal terminal 18 as described above.

The front end portion 48 is a member provided at the front end of the base portion 44 in the axial direction A. In the present embodiment, as a pair of members provided with a gap in the width direction C, a front end portion 48 is provided.

The front end portion 48 has a function of holding and fixing the coaxial cable 4 by contacting the insulator 12 of the coaxial cable 4 in the assembled state shown in FIGS. 6 and 7. In this way, the front end portion 48 has a function of holding a connection portion between the coaxial cable 4 and the internal terminal 18, that is, a connection portion between the central conductor portion 10 of the coaxial cable 4 and the two-strand portion 30 of the internal terminal 18.

Next, as shown in FIG. 5 and the like, the external terminal 22 includes a cylindrical portion 32, a holding portion 34, a fixing portion 35, and a caulking joint portion 36 (FIG. 1).

The cylindrical portion 32 is a cylindrical member fitted into the external terminal 11 of the target connector 8 described above. The cylindrical portion 32 in this embodiment has a cylindrical shape (substantially cylindrical shape) extending in the insertion direction B. In the assembled state shown in FIGS. 6 and 7, the first terminal portion 24 of the internal terminal 18 is arranged inside the cylindrical portion 32.

By making the cylindrical portion 32 of the external terminal 22 into a cylindrical shape and the first terminal portion 24 of the internal terminal 18 also into a cylindrical shape, a fixed distance is maintained from each other in a radial direction perpendicular to the insertion direction B. Without narrowing locally. This can prevent the characteristic impedance from decreasing due to the increase in the capacity of the cylindrical portion 32 and the first terminal portion 24, and as a result, the deterioration of the reflection characteristics can be prevented.

The holding portion 34 is a plate-like member extending from the cylindrical portion 32 in the lateral direction. The holding portion 34 is arranged along the insulating member 20 and the coaxial cable 4 in an assembled state shown in FIGS. 6 and 7 to hold the insulating member 20 and the coaxial cable 4. In the holding portion 34, a cylindrical portion 32, a fixing portion 35, and a caulking joint portion 36 are formed (see FIG. 1).

The fixing portion 35 is a plate-like member provided so as to protrude from the holding portion 34 in the insertion direction B. The fixing portion 35 is disposed so as to sandwich the front end portion 48 of the insulating member 20 in the width direction C in the assembled state shown in FIGS. 6 and 7. The fixed portion 35 thus configured has a function of fixing the front end portion 48 and the coaxial cable 4 disposed inside the front end portion 48.

The caulking joint portion 36 is a member caulked toward the coaxial cable 4 and the insulating member 20. By caulking the caulking joint portion 36, the coaxial cable 4 and the insulating member 20 are integrally fixed.

The caulking joint portion 36 in the present embodiment is composed of a plurality of claw portions bent from the holding portion 34 toward the coaxial cable 4 and bent in the circumferential direction D of the coaxial cable 4. Specifically, a first claw portion 38, a second claw portion 40, and a third claw portion 42 are provided. As shown in FIG. 5 and the like, each of the first claw portion 38, the second claw portion 40, and the third claw portion 42 is composed of a pair of plate-like members provided with a gap in the width direction C.

The functions of the claws will be described with reference to FIGS. 6 and 7.

As shown in FIGS. 6 and 7, the first claw portion 38 is caulked in contact with the front end portion 48 of the insulating member 20 located around the insulator 12 of the coaxial cable 4. The first claw portion 38 contacting the front end portion 48 has a function of holding and fixing a connection portion between the central conductor portion 10 of the coaxial cable 4 and the two-strand portion 30 of the internal terminal 18.

The second claw portion 40 is caulked so as to contact the outer conductor portion 14. The second claw portion 40 contacting the external conductor portion 14 has a function of electrically connecting the external terminal 22 to the coaxial cable 4.

The third claw portion 42 is caulked so as to contact the insulating coating 16 of the coaxial cable 4. The third claw portion 42 of the contact insulating film 16 has a function of holding and fixing the coaxial cable 4.

The first and second claw portions 38, 40, and 42 are caulked to produce the plug cable 2 shown in Fig. 1. In the plug cable 2 shown in FIG. 1, the internal terminal 18 is connected to the center conductor portion 10 of the coaxial cable 4, and the external terminal 22 is held and fixed while being connected to the external conductor portion 14 of the coaxial cable 4. By fitting the L-shaped coaxial connector 6 of the plug cable 2 shown in FIG. 1 to the target connector 8, the coaxial cable 4 connected to the L-shaped coaxial connector 6 and the substrate on which the target connector 8 is mounted can be fitted. Electrically connected for transmission of high frequency signals.

In this structure, as shown by a dotted line E in FIGS. 7 and 8, the first claw portion 38 extends in the axial direction A of the coaxial cable 4 to a position in contact with the external conductor portion 14. The dotted line E indicates the position of the front end of the first claw portion 38 in the axial direction A. When the first claw portion 38 is brought into contact with the external conductor portion 14, not only the second claw portion 40 but also the first claw portion 38 is conducted to the external conductor portion 14. In this way, in addition to the function of holding and fixing the connection portion between the central conductor portion 10 and the two-strand portion 30 of the internal terminal 18 by contacting the front end portion 48, the first claw portion 38 also has the additional function of conducting with the external conductor portion 14.

With respect to the above configuration, a configuration is considered in which only the second claw portion 40 in the caulking joint portion 36 is in contact with the outer conductor portion 14, and the first claw portion 38 is not in contact with the outer conductor portion 14. In the case of such a structure, in the completed plug cable 2 shown in FIG. 1, there are a second claw portion 40 that is in communication with the external conductor portion 14 and a first claw portion that is not in communication with the external conductor portion 14. Electrical cracks are generated between the parts 38, and the electromagnetic field is disturbed. As a result, the electrical characteristics of the plug cable 2 may be deteriorated.

In the plug cable 2 of this embodiment, not only the second claw portion 40 but also the first claw portion 38 is in contact with the outer conductor portion 14 and is conducted. Therefore, electrical cracks in the axial direction A in the external terminal 22 can be avoided. As shown in FIG. 1, there is a gap between the first claw portion 38 and the second claw portion 40, but since the outer conductor portion 14 is disposed therebetween, no electrical cracks occur. With this structure, the electrical characteristics of the plug cable 2 can be improved, and high-frequency signals can be stably transmitted.

In this embodiment, as further shown in FIG. 8, the portion where the first claw portion 38 contacts the front end portion 48 of the insulating member 20 is set to be farther from the external terminal 22 than the portion where the first claw portion 38 contacts the outer conductor portion 14. The holding portion 34 is further away. Specifically, the height position of the front end portion 48 of the insulating member 20 is made lower than the height position of the outer conductor portion 14. According to this arrangement, as long as the first claw portion 38 of the contact tip portion 48 extends in the axial direction A to contact the external conductor portion 14, the first claw portion 38 can be brought into contact with the external conductor portion 14 by pressing. Accordingly, even if a simple structure is used, the contact between the first claw portion 38 and the outer conductor portion 14 can be surely ensured.

In the plug cable 2 having the above-mentioned structure, as shown in FIG. 8, a protruding portion 46 of the insulating member 20 is inserted into the first terminal portion 24 of the internal terminal 18. Thereby, the internal terminal 18 can be strengthened from the inside, and the strength of the internal terminal 18 can be improved.

In the present embodiment, as described above, the first terminal portion 24 is provided in the internal terminal 18 as the male type of the internal terminal 9 inserted into the target connector 8. Thereby, it is not necessary to ensure elasticity like the female type, and the internal terminal 18 can be reduced. Furthermore, although the internal terminal 18 is reduced, since the protruding portion 46 of the insulating member 20 is inserted into and joined to the insertion hole 28 of the first terminal portion 24, the strength of the internal terminal 18 is enhanced. This can suppress a decrease in strength due to the miniaturization of the internal terminal 18. In this way, by reducing the overall shape of the internal terminal 18, it is possible to suppress capacitive coupling with the external terminal 22 disposed around the internal terminal 18 and suppress deterioration of electrical characteristics. At the same time, it is possible to achieve miniaturization of the plug cable 2, especially low height. Into.

Next, a detailed structure of the internal terminal 18 will be described using FIGS. 9A to 9C. FIG. 9A is a perspective view of the internal terminal 18, FIG. 9B is a top view of the internal terminal 18, and FIG. 9C is a longitudinal sectional view of the internal terminal 18 (corresponding to the X-X line cross-section of FIG. 7).

As shown in FIGS. 9A and 9C, the first terminal portion 24 of this embodiment is formed in a circular cylindrical shape with a rounded end. Specifically, the first terminal portion 24 includes a cylindrical portion 50 and a convex portion 52.

The cylindrical portion 50 is a cylindrical member. One side is connected to the second terminal portion 26 and the other side is connected to the convex portion 52. The convex portion 52 is a member protruding from the cylindrical portion 50 in the insertion direction B. The convex portion 52 is formed at the front end portion of the first terminal portion 24 in the insertion direction B.

The convex portion 52 in this embodiment is formed with a curved surface 52a. The surface 52a is a surface continuous from the outer peripheral surface of the cylindrical portion 50, and is smoothly curved toward the center side of the first terminal portion 24. By forming such a surface 52a, the front end portion of the first terminal portion 24 does not have an angular shape but a rounded shape. In this way, not only the cylindrical portion 50 but also the convex portion 52 has a rounded shape, thereby suppressing the capacitive coupling with the external terminals 22 provided in the surroundings, compared with the case where it has a rounded shape. The deterioration of the electrical characteristics of the plug cable 2 can be suppressed.

Furthermore, in the present embodiment, the insertion hole 28 is formed as a through hole penetrating both the cylindrical portion 50 and the convex portion 52 in the insertion direction B. By using the insertion hole 28 as a through-hole, two opening portions 28A and 28B are formed at both ends in the insertion direction B of the first terminal portion 24 (FIG. 9C). A first opening 28A is formed in the cylindrical portion 50, and a second opening 28B is formed in the convex portion 52. The first opening portion 28A is formed at the bottom end portion 51 of the first terminal portion 24, and the second opening portion 28B is formed at the front end portion (the convex portion 52) of the first terminal portion 24.

Although FIG. 9C shows that the first opening portion 28A and the second opening portion 28B have the same diameter, FIG. 9C is a schematic view and is not limited to the same diameter. For example, as shown in FIG. 8, the diameter of the first opening 28A may be larger than the diameter of the second opening 28B.

The first opening portion 28A is an insertion opening through which the protruding portion 46 of the insulating member 20 is inserted. On the other hand, the second opening portion 28B is used to prevent the protruding portion 46 from interfering with the front end of the first terminal portion 24 even when the length of the protruding portion 46 of the inserted insulating member 20 is set to be long. Department of holes. As described above, by forming the insertion hole 28 as a through hole, the length of the protruding portion 46 of the insulating member 20 can be made longer, and the strength of the first terminal portion 24 can be enhanced.

Furthermore, in this embodiment, it is comprised so that the whole protrusion part 46 of the insulating member 20 may be accommodated in the insertion hole 28 of the 1st terminal part 24. As shown in FIG. Specifically, the front end of the protruding portion 46 extends in the insertion direction B to the same position as the front end (front end portion) of the convex portion 52 of the first terminal portion 24 (see FIG. 8). As described above, by arranging the protruding portion 46 in the first terminal portion 24 of the internal terminal 18 in the substantially full length of the insertion direction B, it is possible to prevent the protruding portion 46 from protruding from the insertion hole 28 and prevent interference with other members. The strength of the first terminal portion 24 is strengthened to the limit.

Next, the two-stranded portion 30 provided at the front end of the second terminal portion 26 will be described.

In this embodiment, a two-stranded portion 30 is formed on the second terminal portion 26 and the center conductor portion 10 of the coaxial cable 4 is sandwiched. By using such a two-stranded portion 30 to connect to the center conductor portion 10, it is possible to connect to the center conductor portion 10 by a simple structure. The two-stranded portion 30 is a portion extending in the axial direction A in the same manner as the central conductor portion 10, and does not have unevenness in the vertical direction (the insertion direction B). According to such a structure, compared with the case where the two-stranded portion 30 contacts the central conductor portion 10 in two portions which are not divided in the axial direction A but in the up-down direction, the contact area can be secured. In addition, by having no unevenness in the vertical direction, capacitive coupling with the external terminal 22 can also be suppressed.

Furthermore, in the present embodiment, the widths of the first extension portion 30A and the second extension portion 30B of the two-stranded portion 30 are the same and fixed, and the thicknesses are also the same and fixed.

Specifically, as shown in FIG. 9B, the width of each of the first extension portion 30A and the second extension portion 30B is the same as the length D1 and is also fixed in the axial direction A. Similarly, as shown in FIG. 9C, the thickness of each of the first extension portion 30A and the second extension portion 30B is the same as the length D2, and is also fixed in the axial direction A.

According to this structure, compared with the case where the widths or thicknesses of the first extension portion 30A and the second extension portion 30B are different, or the case where the width is not fixed, the capacitive coupling with the external terminal 22 can be suppressed, and the plug cable 2 can be suppressed. Degradation of electrical characteristics.

As mentioned above, although this invention was demonstrated using the said embodiment, this invention is not limited to the said embodiment. For example, in the embodiment, the case has been described in which the external terminal 22 has a cylindrical tubular portion 32 and the first terminal portion 24 of the internal terminal 18 disposed in the cylindrical portion 32 has a circular shape. The tube portion 50 is not limited to this case. The cross section of the cylindrical portion 32 and the cylindrical portion 50 is not limited to a circular shape, and may have any shape. That is, as long as they are all cylindrical. In addition, all of them are cylindrical to suppress mutual capacitive coupling.

The "cylindrical shape" in this specification includes not only a complete cylindrical shape, but also those in which irregularities, cutouts, and protrusions are added to the cylindrical shape (generally cylindrical, approximately cylindrical, approximately cylindrical, etc.) .

In the embodiment, the case where the extension direction (insertion direction B) of the first terminal portion 24 of the internal terminal 18 and the cylindrical portion 32 of the external terminal 22 is orthogonal to the axial direction A of the coaxial cable 4 has been described. But it is not limited to this case, and it can also be a non-orthogonal case. That is, the first terminal portion 24 and the cylindrical portion 32 may extend in a direction crossing the axial direction A of the coaxial cable 4.

Moreover, in the embodiment, the case where the insertion hole 28 provided in the first terminal portion 24 is a through hole has been described, but it is not limited to this case, as long as the first opening portion 28A is provided on only one side thereof The second opening 28B on the other side may be closed. That is, at least the protruding portion 46 of the insulating member 20 may be inserted. In other words, the insertion hole 28 may be provided in the bottom end portion 51 on the opposite side to the end portion located before the front end in the insertion direction B. In addition, by using the insertion hole 28 as a through hole, the length of the protruding portion 46 to be inserted can be made longer, and the strength of the first terminal portion 24 can be further ensured.

In addition, in the embodiment, the case where the protruding portion 46 of the insulating member 20 extends to the same position as the front end portion (convex portion 52) of the first terminal portion 24 has been described, but it is not limited to this case, and may be This is a case where it protrudes further from the first terminal portion 24 or is completely accommodated in the first terminal portion 24. In addition, the protruding portion 46 is housed in the first terminal portion 24 without further protruding from the first terminal portion 24, and interference with other members can be prevented.

In addition, in the embodiment, the case where the two-stranded portion 30 is provided at the front end of the second terminal portion 26 and brought into contact with the central conductor portion 10 of the coaxial cable 4 in the axial direction A has been described, but it is not limited to this. In this case, it is also possible to make contact with a structure different from the two-stranded portion 30. In addition, the two-stranded portion 30 provided in the axial direction A to be joined to the center conductor portion 10 can secure a contact area with the center conductor portion 10, thereby obtaining good electrical characteristics.

In the embodiment, the following description has been given of the case where the first extension portion 30A and the second extension portion 30B in the two-stranded portion 30 have the same width and are fixed (D1), and their respective thicknesses are the same and Fixed (D2), but is not limited to this case, and may not be the same and fixed. In addition, by setting the width to be the same and fixed, and the thickness to be the same and fixed, good electrical characteristics can be obtained.

In the embodiment, a description has been given of a case where the portion where the first claw portion 38 contacts the front end portion 48 of the insulating member 20 is set to be spaced apart from the portion where the first claw portion 38 contacts the outer conductor portion 14 The distance of the holding portion 34 is longer, but it is not limited to this case, and may be the opposite relationship. In addition, the portion where the first claw portion 38 contacts the front end portion 48 of the insulating member 20 is set to a distance or the same distance from the holding portion 34 than the portion where the first claw portion 38 contacts the outer conductor portion 14. The simple structure ensures the contact between the first claw portion 38 and the outer conductor portion 14.

Although the present disclosure fully describes the preferred embodiments while referring to the drawings, various modifications or corrections will be apparent to those skilled in the art. It should be understood that such variations or modifications are included as long as they do not depart from the scope of the present disclosure based on the scope of the accompanying patent application. In addition, changes in the combination or order of elements in each embodiment can be realized without departing from the scope and thought of the present disclosure.

In addition, by appropriately combining any one of the above-mentioned various embodiments and modifications, the respective effects can be achieved.

    [Industrial availability]    

The present invention is applicable as long as it is an L-shaped coaxial connector with a coaxial cable attached.

Claims (4)

An L-shaped coaxial connector with a coaxial cable, comprising: a coaxial cable having a central conductor portion and an outer conductor portion disposed around the central conductor portion; and an internal terminal connected to the central conductor portion of the coaxial cable An external terminal connected to the external conductor portion of the coaxial cable; and an insulating member disposed between the internal terminal and the external terminal and configured to insert a protruding portion into an insertion hole of the internal terminal; the external portion The terminal includes a holding portion extending and holding the coaxial cable and the insulating member, and a caulking joint portion caulking from the holding portion toward the coaxial cable. The caulking joint portion is provided on the coaxial line. The periphery of the portion where the central conductor portion of the cable is connected to the internal terminal is joined to the first claw portion of the insulating member, and the second claw portion and the first claw portion to the outer conductor portion of the coaxial cable. It is extended in the axial direction of the coaxial cable to the outer conductor portion joined to the coaxial cable. The way the position is formed. The L-shaped coaxial connector with a coaxial cable according to claim 1, wherein a portion where the first claw portion contacts the insulating member is set to be farther from a portion than a portion where the first claw portion contacts the external conductor portion. Keep the department farther away. An L-shaped coaxial connector is connected to a coaxial cable. The coaxial cable includes a center conductor portion and an outer conductor portion disposed around the center conductor portion. The L-type coaxial connector includes an internal terminal connected to the coaxial cable. The center conductor portion; an external terminal connected to the external conductor portion of the coaxial cable; and an insulating member disposed between the internal terminal and the external terminal and configured to insert a protruding portion into the insertion of the internal terminal A hole; the external terminal includes a holding portion extending and holding the coaxial cable and the insulating member, and a caulking joint portion caulking from the retaining portion toward the coaxial cable, and the caulking joint portion A first claw portion joined to the insulating member and a second claw portion joined to the outer conductor portion of the coaxial cable around a portion where the central conductor portion of the coaxial cable is connected to the internal terminal; The first claw portion extends in the axial direction of the coaxial cable to be joined to the coaxial cable. Embodiment is formed of a position of the outer conductor portion. The L-shaped coaxial connector according to claim 3, wherein a portion where the first claw portion contacts the insulating member is set farther from the holding portion than a portion where the first claw portion contacts the external conductor portion. Distance.