CN107528151B

CN107528151B - Connector plug

Info

Publication number: CN107528151B
Application number: CN201710451234.1A
Authority: CN
Inventors: 前田吉朗; 北市幸裕; 星场宽之
Original assignee: Murata Manufacturing Co Ltd
Current assignee: Murata Manufacturing Co Ltd
Priority date: 2016-06-20
Filing date: 2017-06-15
Publication date: 2020-04-28
Anticipated expiration: 2037-06-15
Also published as: CN107528151A; JP2017228347A; JP6623949B2

Abstract

The invention provides a connector plug which is easy to manufacture and can inhibit dislocation between an outer conductor and a central conductor. The connector plug is provided with: an outer conductor part including a cylindrical outer conductor provided with a slit; a central conductor part including a cylindrical central conductor; and an insulator including a plate-like base portion having one main surface on which the recess is formed and a through hole is formed. One main surface has a central portion, a connecting portion, and a peripheral portion, and the through hole is formed along a central axis of the central portion. One end of the outer conductor is inserted into the recess, and the center conductor is inserted into the through hole. The outer diameter of the central portion is smaller than the inner diameter of the outer conductor. The central portion has protruding portions at three positions on the outer periphery, and the protruding portions abut against the inner peripheral surface of the outer conductor so that the outer conductor is expanded by the protruding portions.

Description

Connector plug

Technical Field

The present invention relates to a connector plug, and more particularly, to a connector plug including a cylindrical outer conductor and a center conductor provided in the outer conductor.

Background

As an example of a connector plug including a cylindrical outer conductor and a center conductor provided in the outer conductor, there is a connector plug described in japanese patent application laid-open No. 2013-118121 (patent document 1). Fig. 4 is an external perspective view of the connector plug 200 described in patent document 1. Fig. 5 (a) to (C) are external perspective views of the outer conductor portion 201, the central conductor portion 202, and the insulator 203 constituting the connector plug 200 described in patent document 1.

The external conductor portion 201 includes an external conductor 201a and external terminals 201b to 201 d. The outer conductor 201a is cylindrical and provided with a slit 201S. That is, in fig. 4 and 5, the outer conductor 201a is formed to be concentric with the outer conductor 201aThe cross section of the axis orthogonal is C-shaped. The central conductor portion 202 includes a central conductor 202a and an external terminal 202 b. The insulator 203 includes a rectangular base portion 203a and one main surface 203a provided on the base portion 203a₁ A recess 203b and a protrusion 203 c.

Patent document 1: japanese patent laid-open publication No. 2013-118121

In the connector plug 200, the inner wall 201a of the outer conductor 201a₁And an inner wall 203b of the recess 203b of the insulator 203₁The shape of the insulator 203 is designed so as to form a gap (not shown) therebetween. This facilitates the mounting of the external conductor part 201 and the insulator 203.

On the other hand, if the gap is set too large, the misalignment between the outer conductor 201a and the center conductor 202a increases, so that there is a possibility that the center conductor 202a is damaged when combined with the connector receptacle. The shape design of the insulator 203 for forming an appropriate gap that does not cause the above-described problem is complicated.

Disclosure of Invention

Accordingly, an object of the present invention is to provide a connector plug which is easy to manufacture and can suppress a misalignment between an outer conductor and a center conductor.

In the present invention, the shape of the insulator can be improved so as to suppress the misalignment between the outer conductor and the center conductor.

A connector plug of the present invention includes an outer conductor portion, a center conductor portion, and an insulator. The external conductor portion includes a cylindrical external conductor having a slit formed in a side surface thereof. The central conductor part includes a cylindrical central conductor. The insulator includes a plate-like base portion having one main surface and the other main surface on which the recess is formed, and a through hole formed from the one main surface to the other main surface.

The one main surface has a disk-shaped central portion, a connecting portion connected to a part of the outer periphery of the central portion, and a peripheral portion separated from the central portion by a recess. The through hole is formed along the central axis of the central portion. One end of the outer conductor is inserted into the recess, and the center conductor is inserted into the through hole. The outer diameter of the central portion is smaller than the inner diameter of the outer conductor when viewed from the central axis direction of the outer conductor.

The central portion has projections at least two positions of the outer periphery. The protruding portion abuts against the inner peripheral surface of the outer conductor, and the outer conductor is expanded by the protruding portion.

In the connector plug having the above-described configuration, the outer diameter of the central portion is smaller than the inner diameter of the outer conductor. Therefore, the outer conductor portion is easily attached to the insulator. The central portion has projections at least two positions on the outer periphery. Since the area of the protruding portion in contact with the outer conductor is small, the presence of the protruding portion does not interfere with the mounting of the outer conductor portion on the insulator. The outer conductor expanded by the protruding portion fastens the central portion by its elasticity. As a result, the outer conductor is reliably fixed and positioned with respect to the central portion. Therefore, the connector plug having the above-described configuration can be easily manufactured, and can suppress the displacement between the outer conductor and the center conductor.

The connector plug of the present invention preferably has the following features. That is, the connecting portion and the protruding portion have respective axes of symmetry in the radial direction of the central portion when viewed from the central axis direction of the central portion. An angle formed between the axis of symmetry of the connecting portion and the axis of symmetry of the protruding portion is 90 ° or more and 180 ° or less.

In the connector plug having the above-described configuration, the external conductor is effectively expanded by the respective protrusions. Also, the outer conductor can effectively fasten the central portion by its elasticity. Therefore, the misalignment between the outer conductor and the center conductor can be further suppressed.

The connector plug of the present invention preferably has the following features. That is, the central portion has first to third protruding portions. An angle formed by the symmetry axis of the connecting portion and the symmetry axis of the first protruding portion is 180 °, an angle formed by the symmetry axis of the connecting portion and the symmetry axis of the second protruding portion, and an angle formed by the symmetry axis of the connecting portion and the symmetry axis of the third protruding portion are 90 °.

In the connector plug having the above-described configuration, the external conductor is further effectively expanded by the respective protruding portions. Further, the outer conductor can further effectively fasten the central portion by its elasticity. Therefore, the misalignment between the outer conductor and the center conductor can be further suppressed.

The connector plug of the present invention is easy to manufacture and can suppress the dislocation between the outer conductor and the central conductor.

Drawings

Fig. 1 is a top view of an external appearance of a connector plug 100 as an embodiment of the connector plug of the present invention.

Fig. 2 is an external perspective view of the connector plug 100.

Fig. 3 is an external perspective view of the outer conductor part 1, the center conductor part 2, and the insulator 3 constituting the connector plug 100.

Fig. 4 is an external perspective view of a connector plug 200 of the related art.

Fig. 5 is an external perspective view of the outer conductor portion 201, the center conductor portion 202, and the insulator 203 constituting the connector plug 200 of the related art.

Detailed Description

Hereinafter, embodiments of the present invention will be described, and the features of the present invention will be described in further detail. The connector plug to which the present invention is applied may be a connector plug used for connecting a signal cable between lines in a separated layout, but is not limited thereto.

Embodiments of a connector plug

A connector plug 100 as an embodiment of the laminated electronic component of the present invention will be described with reference to fig. 1 to 3. The drawings are schematic and do not necessarily reflect the actual article dimensions. In addition, differences in the shapes of the respective constituent elements, etc., which occur in the manufacturing process are not necessarily reflected in the respective drawings. That is, the drawings used below can be said to essentially represent actual products even if there are portions different from the actual products.

Fig. 1 is an external plan view of the connector plug 100. Fig. 2 is an external perspective view of the connector plug 100. Fig. 3 is an external perspective view of the outer conductor part 1, the center conductor part 2, and the insulator 3 constituting the connector plug 100. The connector plug 100 includes an outer conductor portion 1, a center conductor portion 2, and an insulator 3.

The external conductor portion 1 includes an external conductor 1a, a first external terminal 1b, a second external terminal 1c, and a third external terminal 1 d. The outer conductor 1a has a cylindrical shape with a C-shaped cross section, and a slit 1S is provided on a side surface thereof. In the connector plug 100, a flange portion is formed on the outer conductor 1a, but the flange portion is not essential.

The first external terminal 1b, the second external terminal 1c, and the third external terminal 1d are connected to one end of the external conductor 1a, are orthogonal to the central axis of the external conductor 1a, and extend in a direction away from the central axis. The second external terminal 1c and the third external terminal 1d face each other with the external conductor 1a interposed therebetween. The first external terminal 1b extends in a direction orthogonal to the direction in which the second external terminal 1c and the third external terminal 1d extend.

The first external terminal 1b is plate-shaped and connected to one end of the external conductor 1a at a position facing the slit 1S with the center axis of the external conductor 1a interposed therebetween. The second external terminal 1c has a T-shape with a predetermined shape design, and includes a first portion 1c₁And a second portion 1c₂. First part 1c₁A horizontal part in the shape of a T, a second part 1c₂Is a vertical portion. The third external terminal 1d is also in the same shape as the second external terminal 1c and has a first portion 1d₁And a second portion 1d₂. However, the shapes of the second external terminal 1c and the third external terminal 1d are not limited to this.

In fig. 1, the second portion 1c of the second external terminal 1c₂Is connected to the right side of one end of the outer conductor 1 a. Second portion 1d of third external terminal 1d₂Similarly connected to the left side of one end of the outer conductor 1a in fig. 1. First portion 1c of second external terminal 1c₁And a first portion 1d of the third external terminal 1d₁Extending in a direction connecting the first external terminal 1b and the slit 1S.

The central conductor portion 2 includes a central conductor 2a and a fourth external terminal 2 b. The center conductor 2a is cylindrical and has three slits provided at equal intervals. The central conductor 2a can be slightly expanded in a direction perpendicular to the central axis of the central conductor 2a when the central conductor (not shown) of the coaxial connector jack is inserted. However, the shape of the central conductor 2a is not limited thereto. The fourth external terminal 2b is plate-shaped, is connected to one end of the central conductor 2a, is orthogonal to the central axis of the central conductor 2a, and linearly extends in a direction opposite to the first external terminal 1 b.

The outer conductor portion 1 and the central conductor portion 2 are formed by punching and bending a single metal plate having conductivity and elasticity, such as phosphor bronze. In addition, silver plating or gold plating is applied to the outer conductor part 1 and the central conductor part 2.

The insulator 3 includes a plate-like base portion 3a, and the base portion 3a has one main surface 3a on which a concave portion 3b is formed₁And the other main surface (not shown) and is formed with a first main surface 3a₁A through hole 3t to the other main surface, and a protrusion 3 c. The shape of the base part 3a is substantially rectangular with chamfered corners, but one main surface 3a₁Having a disc-shaped central portion 3a₁₁And a central part 3a₁₁ A connecting portion 3a connecting a part of the outer periphery of₁₂And a passing recess 3b and a central portion 3a₁₁Isolated peripheral portion 3a₁₃. In the connector plug 100, the recess 3b has a substantially C-shape, but the shape of the recess 3b is not limited thereto. In addition, the peripheral portion 3a₁₃The four small regions are divided, but not limited thereto.

The through-hole 3t is formed along the central portion 3a₁₁Is formed. In addition, a protrusion 3c is formed on the connecting portion 3a₁₂. That is, the protrusion 3c functions as a lid member that closes the slit 1S provided in the side surface of the external conductor 1 a. However, the protrusion 3c does not contact the outer conductor 1a, and the outer conductor 1a can be slightly deformed.

The base portion 3a is further provided with cut portions C1 to C3. The notches C1 to C3 are formed by removing a part of the side of the base portion 3a so that the first external terminal 1b is disposed in the notch C1, the second external terminal 1C is disposed in the notch C2, and the third external terminal 1d is disposed in the notch C3. The notch C1 is formed at a position facing the slit 1S with the center conductor 2a interposed therebetween.

The insulator 3 is made of an insulating material such as epoxy resin. The central conductor portion 2 and the insulator 3 are integrally formed by insert molding, for example, so that the central conductor 2a is inserted into the through hole 3 t. One end of the outer conductor 1a of the outer conductor part 1 is a central part 3a₁₁Is inserted into the outer conductor 1a and is attached to the recess 3b of the insulator 3 to which the center conductor 2 is attached. The external conductor portion 1 is fixed to the insulator 3 by the first external terminal 1b, the second external terminal 1c, and the third external terminal 1 d.

Further, the central portion 3a is viewed from the central axis direction of the outer conductor 1a₁₁Is smaller than the inner diameter of the outer conductor 1 a. I.e. in the central part 3a₁₁A clearance CL for easily attaching the outer conductor part 1 to the insulator 3 is provided between the outer peripheral surface of (a) and the inner peripheral surface of the outer conductor 1 a.

Center part 3a₁₁The outer periphery has three positions, namely, a first projection P1, a second projection P2, and a third projection P3. The first projection P1, the second projection P2, and the third projection P3 abut against the inner peripheral surface of the outer conductor 1 a. That is, the outer conductor 1a expanded by the first projection P1, the second projection P2, and the third projection P3 is elastically urged toward the central portion 3a₁₁And (6) fastening. As a result, the outer conductor 1a is opposed to the central portion 3a₁₁Is fixed and positioned.

In the connector plug 100, in the central portion 3a₁₁When viewed in the central axis direction of (3), the connecting part (3 a)₁₂The first projection P1, the second projection P2 and the third projection P3 are arranged at the central part 3a₁₁Respectively have an axis of symmetry in the radial direction. In addition, in the connector plug 100, the connection part 3a₁₂And the first projecting portion P1 is located across the central portion 3a₁₁Because of the positions facing each other, a1 in fig. 1 is common and is a symmetry axis of both. Similarly, the second projection P2 and the third projection P3 are positioned across the center portion 3a₁₁Because of the positions facing each other, a2 in fig. 1 is common and is a symmetry axis of both.

Namely, the connecting part 3a₁₂Has an angle of 180 DEG with respect to the axis of symmetry A1 of the first projection P1 and the axis of symmetry A1 of the first projection P1, and the connecting portion 3a₁₂The angle formed by the axis of symmetry a1 of the second projection P2 and the axis of symmetry a2 of the second projection P2, and the connecting portion 3a₁₂The angle between the symmetry axis a1 of the third protrusion P3 and the symmetry axis a2 of the third protrusion P3 is 90 °.

Since the connector plug 100 has the above-described configuration, the area of contact between each protruding portion and the outer conductor 1a is small, and even if each protruding portion is present, the presence of each protruding portion does not hinder the mounting of the outer conductor portion 1 on the insulator 3. That is, the clearance CL for improving workability remains. The outer conductor 1a is expanded by the respective protruding portions, and is elastically biased toward the central portion 3a₁₁And (6) fastening. As a result, the outer conductor 1a is opposed to the central portion 3a₁₁Is reliably fixed and positioned. Therefore, it is not necessary to design the insulator 3 in a complicated shape, so that the manufacturing is easy and the misalignment between the outer conductor 1a and the central conductor 2a is reliably suppressed.

In the connector plug 100, a protrusion is provided in the central portion 3a₁₁The outer circumference of (a) may be at three positions, but at least two positions may be provided. If the protruding portions are provided at least at two places, the outer conductor 1a is expanded by each protruding portion. The outer conductor 1a can be elastically fitted to the central portion 3a₁₁And (6) fastening. In this case, the connection part 3a₁₂When the angle formed by the axis of symmetry of the outer conductor 1a and the axis of symmetry of each projection is 90 ° or more and 180 ° or less, the outer conductor is effectively expanded by each projection. Moreover, the outer conductor 1a can effectively contact the central portion 3a by its elasticity₁₁And (6) fastening.

The present invention is not limited to the above-described embodiments, and various applications and modifications can be made within the scope of the present invention. Note that the embodiments described in the present specification are examples, and substitution or combination of components that can be configured between different embodiments is pointed out in advance.

Description of the symbols

100 … connector plug; 1 … outer conductor portion; 1a … outer conductor; 1b … first external terminal; 1c … secondAn external terminal; 1d … third external terminal; 1S … slit; 2 … a central conductor portion; 2a … center conductor; 2b … fourth external terminal; 3 … an insulator; 3a … base section; 3a of₁… a major face; 3a of₁₁… center portion; 3a of₁₂… a connection portion; 3a of₁₃… peripheral edge portions; 3b … recess; 3c … protrusions; 3t … through holes; a CL … gap; a P1 … first tab; a P2 … second tab; p3 … third tab; a1 and A2 … symmetry axis.

Claims

1. A connector plug comprises an outer conductor part, a central conductor part and an insulator,

the connector plug is characterized in that it is provided with,

the external conductor part includes a cylindrical external conductor provided with a slit on a side surface,

the central conductor portion includes a cylindrical central conductor,

the insulator includes a base portion having a plate shape and having one main surface and the other main surface, a recess portion being formed in the one main surface, and a through hole being formed in the base portion from the one main surface to the other main surface,

the one main surface has: a disk-shaped central portion; a connecting portion connected to a part of an outer periphery of the central portion; and a peripheral portion separated from the central portion by the recess, the through hole being formed along a central axis of the central portion,

one end of the outer conductor is inserted into the recess, and the center conductor is inserted into the through hole,

an outer diameter of the central portion is smaller than an inner diameter of the outer conductor when viewed from a central axis direction of the outer conductor,

the central portion has protruding portions at least two positions on an outer periphery, the protruding portions abut against an inner peripheral surface of the outer conductor, and the outer conductor is expanded by the protruding portions.

2. Connector plug according to claim 1,

the connecting portion and the protruding portion each have a symmetry axis in a radial direction of the central portion when viewed from a central axis direction of the central portion,

an angle formed by the symmetry axis of the connecting portion and the symmetry axis of the protruding portion is 90 ° or more and 180 ° or less.

3. Connector plug according to claim 2,

the central portion has a first projection, a second projection, and a third projection,

an angle formed by the symmetry axis of the connecting portion and the symmetry axis of the first protruding portion is 180 °, and an angle formed by the symmetry axis of the connecting portion and the symmetry axis of the second protruding portion and an angle formed by the symmetry axis of the connecting portion and the symmetry axis of the third protruding portion are 90 °.