JPH08153557A - Female terminal and coaxial connector using it - Google Patents

Abstract

PURPOSE: To provide a female connector of a shape which precludes intrusion of resin material and provide a coaxial connector which incorporates the female terminal, is constructed small, and is free from risk of terminal deformation. CONSTITUTION: A female terminal 1 has a body in approx. cylindrical form and a tine part 14 coupled with the body through a hinge 16. The tine part 14 has a base part greater than the end of the body part, and when the tine part 14 is folded toward the body, the base part encloses the end of the body. This hinders intrusion of resin material when a single piece molding is made to the housing 50 along with a shield terminal 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a female terminal and a coaxial connector using the same, and more particularly to a female terminal which enables integral molding and a coaxial connector using the same.

[0002]

2. Description of the Related Art Conventionally, as a coaxial connector (hereinafter, simply referred to as a connector) having a shield terminal and a core terminal held in an insulating housing (hereinafter, simply referred to as a housing), as shown in FIG. Some are disclosed in Japanese Patent No. 6755. This connector 200 is
2, a cylindrical shell terminal 204 and a core terminal 206 arranged coaxially with the shell terminal 204 are press-fitted and held. However, when press-fitting, it is necessary to make the housing 202 thick to have strength in order to prevent the housing 202 from being cracked, and the housing 202 becomes large. In addition, if the core terminal 206 is long and has little strength, it may be deformed or buckled during press fitting.

Further, when the shield terminal, the core terminal and the housing are integrally molded without press-fitting, there is a problem that the molding die becomes complicated.

The present invention has been made in view of the above points, and a female terminal which allows a molding die to be relatively simple, and a small-sized coaxial connector which uses this female terminal and which is unlikely to crack the housing. The purpose is to provide.

[0005]

A female terminal of the present invention comprises a substantially cylindrical main body which receives a counterpart male terminal from one end, and a hinge integrally connected to the other end of the main body and the other end of the other end. A tine portion having a base portion having a size larger than a diameter, wherein the tine portion is bent by the hinge, and the base portion is configured to cover the other end of the main body portion in a close contact state.

Further, the coaxial connector using the female terminal of the present invention comprises a substantially cylindrical shield terminal and a core terminal coaxially arranged at the center of the shield terminal, both terminals being held in an insulating housing. In the coaxial connector
The core terminal is a female terminal having a substantially cylindrical main body portion and a tine portion integrally connected to an end portion of the main body portion by a hinge and having a base portion larger in size than the main body portion, and the tine portion is The base portion is bent by the hinge so as to cover the end portion of the main body portion in a close contact state, and the female terminal is integrally molded with the shield housing together with the shield terminal.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a partially enlarged view showing a state in which the female terminal 1 of the present invention is connected to the carrier strip 4. The female terminal 1 is stamped and formed from a metal plate such as phosphor bronze or a copper-nickel alloy, and the main body 2 is formed into a substantially cylindrical shape. A pair of substantially V-shaped inwardly curved contact portions 6 are formed facing each other at an intermediate portion in the axial direction of the main body portion 2. The contact portion 6 is configured to elastically contact the inner surface 8 of the contact portion 6 when a mating male terminal (not shown) is inserted from the one end 9. Reference numeral 10 is a seam of the metal plates when the main body 2 is formed.

A tine portion 14 is hinged to the other end 12 of the main body portion 2.
It is formed integrally with the main body 2 via 16. Hinge 16
The portion of the tine portion 14 connected with the base portion 18 has a diameter larger than that of the main body portion 2.

FIG. 2 shows a sectional view of the female terminal 1. Tine
Reference numeral 14 denotes a hinge 16, which is bent toward the main body 2 to form a base portion 18.
Closes the other end 12 of the main body 2 and closes the other end 12. As a result, when the female terminal 1 is molded integrally with the housing, the resin material is prevented from entering the main body 2.

FIG. 3 is a plan view of the shield terminal 30 coaxially arranged outside the female terminal 1. The shield terminal 30 has a cylindrical main body portion 32, and tine portions 34, 36, 38 radially extend in three directions from the lower end of the main body portion 30. In the figure, a notch 40 shown by a chain line is formed on the right side of the main body portion 30 so that the tine portion 14 of the female terminal 1 can pass through.

FIG. 4 is a plan view of a coaxial connector (hereinafter simply referred to as a connector) 80 in which the female terminal 1, the shield terminal 30 and the housing 50 are integrally molded. The positional relationship between the female terminal 1 and the shield terminal 30 is clearly shown.

FIG. 5 is a sectional view of the connector 80 of FIG. 4 taken along the line VV. In the figure, the bottom surface 20 of the tine portion 14 of the female terminal 1 is flush with the bottom surface 52 of the housing 50, and this surface is in contact with the inner wall of the mold (not shown). Another mold component is placed in the gap 82 between the female terminal 1 and the shield terminal 30. At this time, since the resin of the molding material does not enter the main body 2 of the female terminal 1, no mold part is required in the main body 2. Female terminal 1 and shield terminal 30 are housings
Holds securely to the base 54 of 50.

FIG. 6 shows a bottom view of the connector 80 shown in FIG. From this figure, the tines 34, 36, 38 of the shield terminal 30
And the positional relationship of the tine portion 14 of the female terminal 1 can be clearly understood. The tine portions 34, 36, 38 are grounded to a printed board (not shown) by the surface mounting technique (SMT), and the tine portion 14 of the female terminal 1 is similarly connected to a signal pad (not shown) of the printed board.

Next, the plug-side coaxial connector 100 that fits with the connector 80 will be described in detail with reference to FIGS.

FIG. 7 shows a front view of a plug-side coaxial connector (hereinafter, simply referred to as a connector) 100. Connector 100
The outer conductor 101 has a substantially cylindrical main body 102, a barrel portion 104 for crimping the electric wire 300, and a cover portion 106 that covers the main body portion 102 from above and is crimped onto the barrel portion 104. The main body 102 has an annular recess on the outer periphery near the fitting surface 108.
110 and a slot 112 extending from the mating surface 108 in the insertion / removal direction.
Are provided at predetermined intervals to provide elasticity. Further, the barrel portion 104 has an insulation (insulator) barrel 104a for integrally crimping the insulating jacket 302 of the electric wire 300 and a shield barrel 104b for crimping the shield wire 304. The cover unit 106 is the main unit 10
2 and hinge 114 are connected together, and barrel 10
It has a crimp barrel 116 which is crimped to the 4. The crimp barrel 116 holds the electric wire 300 and stabilizes the main body 102.

FIG. 8 shows a plan view of the outer conductor 101 in a developed state. The outer conductor 101 is stamped and formed from a metal plate and connected to the carrier strip 118. The cover portion 106 is deployed at an angle of approximately 180 ° with respect to the main body portion 102 and the barrel portion 104, and the electric wire 300 and the housing 150, which will be described later, are assembled in this state. It is easy and the freedom of assembly work is great. In the figure, the crimping barrel 116 has a generally V-shaped cross section with the tip 120 facing inward. 122 is a spacer described later
It shows the holes where 350 is fixed. A notch 103a for positioning the housing 150, which will be described later, is provided on the upper edge 109 of the main body 102.
103b, 105a, 105b, 107a, 107b are formed. Next, the housing 150 arranged in the main body 102 is shown.

FIG. 9 shows a plan view of the insulative housing 150. The housing 150, that is, the dielectric, has a shape substantially complementary to the main body 102 of the outer conductor 101. A through hole 152 is provided in the approximate center of the housing 150.
Pin terminal 160 is press-fitted and held in 152. housing
On the outer periphery of 150, a protrusion 154a having a predetermined length in the insertion / removal direction,
154b, 156a, 156b, 158a, 158b are formed. The housing 150 is provided with a groove 164 along the upper surface 162 of the housing 150 so as to be orthogonal to the pin terminals 160.
The concave groove 164 is a concave portion 168 in which the dielectric of the electric wire 300 is arranged, a long groove 171, in which the core wire 310 (see FIG. 14) of the electric wire 300 is arranged,
And a spacer 170 (see FIG. 11) in which the spacer 350 is disposed.

FIG. 10 is a sectional view of the housing 150 of FIG. 9 taken along the line XX. Through hole 152 is a rectangular hole
152a and a round hole 152b that extends to the mating surface 172 continuously from the hole 152a.
And consists of. The round hole 152b is a tapered round hole 152c that widens in the vicinity of the fitting surface 172. The pin terminal 160 is composed of a rectangular base portion 174, and a pin portion 176 extending from the base portion 174 toward the fitting surface 172 and having a diameter substantially equal to the thickness of the base portion 174. A pair of barbs 178 facing outward are formed on the base 174, and when the pin terminal 160 is press-fitted into the through hole 152, the barb 178 and the inner wall of the hole 152a interfere and are locked. The base 174 is formed with an outwardly facing tapered recess 180. In the recess 180, the core wire 310 of the electric wire 300
Is arranged. Since the taper is formed, it is automatically dented when the core wire 310 is placed regardless of the size of the core wire 310.
Located at the center 182 of 180. Next, the spacer 350 arranged on the housing 150 will be described in detail.

FIG. 11 shows a plan view of the spacer 350. The spacer 350 is integrally molded in a substantially plate shape with an insulating material such as plastic. The spacer 350 is a substantially disk-shaped base 352.
And the mounting legs 354 extending in opposite directions from the base 352.
a and 354b. Tapered protrusion 356 from base 352
, 358 are spaced apart from each other and project vertically and at substantially the same height. In the figure, 360 indicates a recess having a curved surface. Base 35
A protruding portion 362 is formed on the second concave portion 360 side.

FIG. 12 shows a front view of the spacer 350 of FIG. From the figure, the heights of the protrusions 356 and 358 and the shape of the curved surface of the recess 360 can be easily understood. The tip ends 355a, 355b of the mounting legs 354a, 354b are provided with a step and are formed so as to be displaced from the base 352 in the plate thickness direction. Next, this spacer 35
Figure 0 with housing 150 attached to outer conductor 101
This will be described with reference to 13.

FIG. 13 shows that the external conductor 101 of FIG.
FIG. 9 is a plan view similar to FIG. 8 of the connector 100 in which the housing 150 into which 0 is press-fitted and the spacer 350 are attached. Spacer
In the 350, the tips 355a and 355b of the mounting legs 354a and 354b are inserted into the holes 122 of the outer conductor 101 and held by the outer conductor 101. The housing 150 has convex portions 154a, 154b, 156a, 156b, 15
8a and 158b are notches 103a, 103b and 105 of the outer conductor 101, respectively.
It is arranged on a, 105b, 107a, 107b and positioned. The cover portion 106 is a virtual line from the carrier strip 118.
Separated at 119 points. Wings 123 of the cover 106,
The 123 projects to the side when it is assembled to the main body 102. Therefore, to remove the mated connector 100, this wing 123
A jig (not shown) may be brought into contact with the 123, 123 and removed. Next, a procedure for terminating the electric wire 300 will be described.

FIG. 14 shows a connector 10 in which an electric wire 300 is terminated.
A cross-sectional view of 0 is shown.

After being assembled as described above, the electric wire 300 is placed on the barrel portion 104, and the core wire 310 of the electric wire 300 is placed on the long groove 171 of the housing 150. And shielded wire 304
Is connected to the barrel portion 104 and the core wire 310 is connected to the pin terminal 160 by soldering, respectively, and the shield barrel 104b
Is crimped to the shielded wire, insulation barrel 10
4a is crimped to the outer cover 302, respectively. After that, the cover part 10
6 is folded at the hinge 114 to close the main body 102,
The crimp barrel 116 of the cover portion 106 is crimped to the barrel portion 104. This will hold the wire 300 securely and
The rigidity (strength) of 100 is also improved. When assembling the spacer
The protrusions 356 and 358 (see FIG. 12) of 350 are on both sides of the core wire 310,
That is, it is arranged in the recess 170 (see FIG. 9) of the housing, and the impedance of the signal is matched.

FIG. 15 shows a connector 80 and a plug type connector.
A cross-sectional view of a state where 100 and 100 are fitted is shown. At the time of mating, the main body 102 of the connector 100 comes into contact with the outside of the shield terminal 30, and the pin terminal 160 is inserted into the female terminal 1 and the contact portion 6 is inserted.
An electrical connection is made in contact with. Mating is 10
The second inward annular convex portion 121 and the annular concave portion 37 provided on the outer periphery of the shield terminal 30 are engaged with each other to complete the process.

The female terminal of the present invention and the connector using the same have been described above in detail. However, it is needless to say that the present invention is not limited to the above-mentioned embodiment and various modifications and changes can be made. For example, the base 18 of the female terminal 1 may have a flat outer periphery and a concave inner surface toward the main body 2.
That is, the contact with the other end 12 side may be made even closer by a concave surface which is a part of the spherical surface or a curved surface having an arbitrary shape.

[0027]

EFFECTS OF THE INVENTION The female terminal of the present invention has the following effects because the tine portion hingedly connected to the substantially tubular body portion is bent to cover the end portion of the body portion in a close contact state. .

That is, since the resin material does not enter when integrally molded with the housing, the mold can be constructed relatively easily. Since the female terminal itself is configured so that the resin material does not enter, no other part for closing is required.

Further, since the coaxial connector using the female terminal can be formed thin, a small connector can be obtained. Further, since it is not necessary to press-fit the female terminal, there is no possibility that the housing will be cracked, and there is no possibility that the female terminal will be deformed or buckled.

[Brief description of drawings]

FIG. 1 is a plan view showing a state in which a female terminal of the present invention is connected to a carrier strip.

FIG. 2 shows an enlarged sectional view of a female terminal of the present invention.

FIG. 3 shows a plan view of a shield terminal.

FIG. 4 shows a plan view of a coaxial connector using female terminals of the present invention.

5 is a sectional view of the coaxial connector of FIG. 4 taken along line VV.

FIG. 6 shows a bottom view of the coaxial connector of FIG.

FIG. 7 shows a front view of a coaxial connector on a plug side.

FIG. 8 is a plan view showing a state in which an outer conductor is developed.

FIG. 9 shows a plan view of the housing 150.

FIG. 10 is a cross-sectional view of the housing of FIG. 9 taken along line XX.

FIG. 11 shows a plan view of a spacer.

FIG. 12 shows a front view of the spacer of FIG.

13 is a plan view similar to FIG. 8 of a plug-type coaxial connector having a pin terminal, a housing, and a racer attached thereto.

FIG. 14 shows a cross-sectional view of a plug type coaxial connector in which an electric wire is terminated.

FIG. 15 is a sectional view showing a state where the plug type coaxial connector and the coaxial connector of the present invention are fitted together.

FIG. 16 is an enlarged sectional view of a conventional coaxial connector.

[Explanation of symbols]

 1 female terminal 2 main body 9 one end 12 other end 14 tine 16 hinge 18 base 30 shield terminal 50 housing 80 coaxial connector

Claims (2)

[Claims] 1. A tine portion having a substantially cylindrical main body portion that receives a mating male terminal from one end, and a base portion that is integrally connected to the other end of the main body portion by a hinge and has a size larger than the diameter of the other end. And the tine portion is bent by the hinge, and the base portion is configured to cover the other end of the main body portion in a close contact state. 2. A coaxial connector comprising a substantially cylindrical shield terminal and a core terminal coaxially arranged at the center of the shield terminal, wherein both terminals are held in an insulating housing. A female terminal having a main body portion and a tine portion integrally connected to an end portion of the main body portion by a hinge and having a base portion larger in size than the main body portion, the tine portion being bent by the hinge. The base is configured to closely cover the end of the body,
A coaxial connector using a female terminal, wherein the female terminal is integrally molded with the insulating housing together with the shield terminal.