JP2019050078A - Coaxial connector - Google Patents

Abstract

To provide a coaxial connector capable of allowing a small deformation of an outside conductor while improving the strength.SOLUTION: Disclosed coaxial connector comprises: an outside conductor having a cylindrical part; an inner conductor which extends in an axial direction of the cylindrical part in an internal space of the cylindrical part; and an insulator which is disposed between one end portion in the axial direction and the inner conductor in the cylindrical part. The cylindrical part comprises: a first portion whose peripheral length increases from one end portion toward the other end portion in the axial direction; a notch portion being cut off from the other end portion to the one end portion; and a reinforcement portion which is disposed on the outer periphery face side of the first portion on at least the end portion in one circumferential direction facing the notch portion for supporting the first portion in the axial direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a coaxial connector.

  Conventionally, as a coaxial connector of this type, for example, one disclosed in Patent Document 1 (International Publication No. 2013/046829) is known.

  A conventional coaxial connector comprises a cylindrical outer conductor, an inner conductor surrounded by the outer conductor, and an insulator disposed between the outer conductor and the inner conductor. The outer conductor is provided with a notch in the axial direction, and is configured to have a C-shape when viewed in plan from the axial direction.

International Publication No. 2013/046829

  However, in the conventional coaxial connector, there is still room for improvement in terms of enabling minute deformation of the outer conductor and improving the strength.

  Therefore, an object of the present invention is to solve the above-mentioned problems, and to provide a coaxial connector which enables minute deformation of the outer conductor and improves the strength.

In order to achieve the above object, a coaxial connector according to the present invention comprises an outer conductor having a tubular portion;
An internal conductor extending in an axial direction of the cylindrical portion in an internal space of the cylindrical portion;
An insulator disposed between the one end portion in the axial direction of the cylindrical portion and the internal conductor;
A coaxial connector comprising
The cylindrical portion has a first portion whose circumferential length increases from the one end toward the other end in the axial direction, a notch cut out from the other end to the one end, and the notch At least one circumferential end facing the portion, a reinforcing portion disposed on the outer peripheral surface side of the first portion and supporting the first portion in the axial direction.

  According to the coaxial connector according to the present invention, it is possible to improve the strength while enabling the minute deformation of the outer conductor.

A perspective view showing a schematic configuration of a coaxial connector according to an embodiment of the present invention A plan view showing a schematic configuration of the coaxial connector of FIG. 1 Longitudinal sectional view of A1 part of the outer conductor provided in the coaxial connector of FIG. 1 Longitudinal sectional view of the A2 portion of the outer conductor provided in the coaxial connector of FIG. 1 A cross-sectional view of the enlarged diameter portion of the outer conductor provided in the coaxial connector of FIG. 1 The top view which shows an example of the manufacturing method of the outer conductor with which the coaxial connector of FIG. 1 is provided The perspective view which shows the process of following FIG. 5

(Findings that formed the basis of the present invention)
The inventors of the present invention obtained the following findings as a result of intensive studies to enable micro-deformation of the outer conductor and improve the strength in the coaxial connector.

  The coaxial connector is used by being detachably fitted to the mating coaxial connector. In the conventional coaxial connector, the outer conductor is provided with an enlarged diameter portion whose circumferential length is expanded from one end in the axial direction toward the other end. When fitting the coaxial connector to the mating coaxial connector, a load is applied axially to the enlarged diameter portion of the outer conductor. At this time, the coaxial connector can be easily fitted to the mating coaxial connector by minutely deforming the enlarged diameter portion to the outside. Also, in the conventional coaxial connector, the outer conductor is provided with a notch so that the enlarged diameter portion can be slightly deformed.

  On the other hand, in the coaxial connector, further miniaturization and height reduction are required. For this reason, in the conventional coaxial connector, when the size and height are reduced by reducing the size of each part, the circumferential end facing the notch of the outer conductor may be deformed excessively, There is a risk of damage.

  On the other hand, the inventors of the present invention have a configuration in which a reinforcing portion is provided outside the enlarged diameter portion to support the enlarged diameter portion in the axial direction at the circumferential end facing the notch portion of the outer conductor. I found it. According to this configuration, the reinforcing portion is not provided on the entire periphery of the outer conductor, but the reinforcing portion is provided on the circumferential end facing the notch of the outer conductor which is easily damaged or the like. And improve the strength. Based on this novel finding, the present inventors arrived at the following invention.

  Based on these novel findings, the present inventors arrived at the following invention.

A coaxial connector according to one aspect of the present invention comprises an outer conductor having a tubular portion;
An internal conductor extending in an axial direction of the cylindrical portion in an internal space of the cylindrical portion;
An insulator disposed between the one end portion in the axial direction of the cylindrical portion and the internal conductor;
A coaxial connector comprising
The cylindrical portion has a first portion whose circumferential length increases from the one end toward the other end in the axial direction, a notch cut out from the other end to the one end, and the notch At least one circumferential end facing the portion, a reinforcing portion disposed on the outer peripheral surface side of the first portion and supporting the first portion in the axial direction.

  According to this configuration, the reinforcing portion provided at the circumferential end of the cylindrical portion improves strength of the circumferential end of the cylindrical portion of the outer conductor while allowing slight deformation of the outer conductor. Can. For this reason, it can suppress that the edge part of the circumferential direction of the cylindrical part in an external conductor deform | transforms excessively, or is damaged.

  The reinforcing portion may be connected to an outer peripheral surface side of the first portion and an outer peripheral surface side of a second portion adjacent to the first portion at the one end portion side in the cylindrical portion. . According to this configuration, the reinforcing portion is connected to the outer peripheral surface side of the first portion and the outer peripheral surface side of the second portion, so that the angle formed by the first portion and the second portion can be maintained. For this reason, the intensity | strength of the edge part of the circumferential direction of the cylindrical part in an outer conductor can be improved more.

  Moreover, the said reinforcement part may be comprised by the plate-shaped member extended to the said axial direction. According to this configuration, by forming the reinforcing portion with the plate-like member extending in the axial direction, the strength of the circumferential end portion of the cylindrical portion in the outer conductor is further improved against the load in the axial direction. It can be improved.

  Further, a cross section of the cylindrical portion orthogonal to the axial direction is configured in a C-shape in which a circle is partially cut away, and the plate-like member is formed of the circle at an end in the circumferential direction of the cylindrical portion. It may be configured to extend in the normal direction or in the substantially normal direction. According to this configuration, the plate-like member is configured to extend in the normal direction or the substantially normal direction of the cylindrical portion, so that the strength of the circumferential end of the cylindrical portion in the outer conductor can be obtained. It can be improved more.

  Moreover, the said cylindrical part may be comprised by the metal plate of 1 sheet. According to this configuration, by forming the tubular portion with a single metal plate, the reinforcing portion can be easily manufactured without using another member for the reinforcing portion. In addition, since the tubular portion is constituted by a single member, that is, there is no need to provide a reinforcing portion by another member, the coaxial connector can be downsized and reduced in height.

  The coaxial connector may be a receptacle connector that fits with a plug connector that is connected to a coaxial cable, and the circumferential width of the cutout may be equal to or larger than the diameter of the coaxial cable. According to this configuration, the overall height when fitting the plug connector and the receptacle connector can be further reduced.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited by this embodiment.

  Also, in the following, for convenience of the description, terms indicating directions such as “upper” and “lower” are used. However, these terms are not meant to limit the use of the coaxial connector of the present invention.

<< Embodiment >>
FIG. 1 is a perspective view of a coaxial connector 1 according to an embodiment of the present invention. FIG. 2 is a plan view showing a schematic configuration of the coaxial connector 1 of FIG. In the present embodiment, the coaxial connector 1 is a receptacle connector which is fitted to a plug connector of a counterpart coaxial connector connected to a coaxial cable extending in the Y direction and mounted on a substrate (not shown). As shown in FIGS. 1 and 2, the coaxial connector 1 includes an outer conductor 2 having a cylindrical portion 21 and an inner conductor extending in the axial direction (Z direction) of the cylindrical portion 21 in the inner space of the cylindrical portion 21. 3 and an insulator 4 disposed between an end portion in the axial direction of the cylindrical portion 21 and the internal conductor 3.

  The outer conductor 2 includes a cylindrical portion 21 formed in a cylindrical shape and mounting portions 22a and 22b mounted on a substrate. The outer conductor 2 concentrically surrounds the inner conductor 3. The inner conductor 3 is formed in a cylindrical shape at the central portion of the cylindrical portion 21 of the outer conductor 2 and has a mespin shape. In the cylindrical inner space of the inner conductor 3, the male pin-shaped inner terminal of the mating coaxial connector is inserted. The inner conductor 3 is formed, for example, by press-forming a copper alloy by drawing or rounding. As shown in FIG. 1, the insulator 4 is formed of a plate-like member, and has recesses 41 a and 41 b in the X-axis and Y-axis directions. The insulator 4 is formed of, for example, a liquid crystal polymer. The internal conductor 3 and the insulator 4 are integrally formed.

  The cylindrical portion 21 has a first portion whose circumferential length increases as it goes from one end in the axial direction (Z direction) of the cylindrical portion 21 to the other end in the axial direction (Z direction) of the cylindrical portion 21; The second portion adjacent to the first portion at one end side in the axial direction (Z direction) of the cylindrical portion 21 in the second portion 21 is provided. The mounting portion 22 a extends in the −Z direction in the recess 41 a of the insulator 4 and is bent in the ± X axis direction. The mounting portion 22 b extends in the −Z direction in the recess 41 b of the insulator 4 and is bent in the −Y axis direction. In the present specification, the first portion is referred to as the enlarged diameter portion 23 and the second portion is referred to as the adjacent portion 24.

  The peripheral wall of the cylindrical portion 21 has a width equal to or larger than the diameter of the coaxial cable of the opposite coaxial connector, and the axial direction (Z direction) of the cylindrical portion 21 from the other end of the cylindrical portion 21 in the axial direction (Z direction) The notch 5 cut out to the one end side of is provided. The notch 5 has the overall height (length in the Z direction) when the coaxial connector 1 and the opposite coaxial connector are fitted by inserting the opposite coaxial connector into the space of the notch 5 in the axial direction (Z direction). (Ie, can be reduced in height).

  In the enlarged diameter portion 23 of the cylindrical portion 21, when fitting with the counterpart coaxial connector, it is easy to align the center of the inner conductor 3 with the center of the inner terminal of the counterpart coaxial connector fitted with the inner conductor 3. As a result, a guiding surface is formed. In addition, the enlarged diameter portion 23 is provided with a curved portion 25 whose inner periphery is curved inward at the connection portion with the adjacent portion 24. The adjacent part 24 is supported by the upper surface (the surface on the + Z direction side) of the insulator 4.

  FIG. 3A is a longitudinal cross-sectional view of the A1 portion of the outer conductor 2 provided in the coaxial connector 1 of FIG. As shown in FIG. 3A, the curved portion 25 has a groove 26 indented inward at the outer periphery excluding the end in the circumferential direction facing the notch 5. The bending portion 25 is configured to be engaged with the mating coaxial connector to make it difficult for the mating coaxial connector to be detached.

  FIG. 3B is a longitudinal sectional view of the A2 portion of the outer conductor 2 provided in the coaxial connector 1 of FIG. As shown in FIG. 3B, the end of the cylindrical portion 21 in the circumferential direction facing the notch 5 is disposed on the outer peripheral surface side of the enlarged diameter portion 23 so that the enlarged diameter portion 23 is in the axial direction (Z direction) The reinforcement part 6 to support is provided. Specifically, reinforcing portion 6 fills groove 26 and is connected to the outer peripheral surface side of enlarged diameter portion 23 and adjacent portion 24 so as to maintain an angle θ1 formed by enlarged diameter portion 23 and adjacent portion 24. ing. Moreover, the reinforcement part 6 is comprised by the plate-shaped member extended in an axial direction (Z direction).

  FIG. 4 is a cross-sectional view of the enlarged diameter portion 23 of the outer conductor 2 provided in the coaxial connector 1 of FIG. As shown in FIG. 4, the cross section of the cylindrical portion 21 orthogonal to the axial direction is configured in a C-shape in which a circle is partially cut away. The plate-like member of the reinforcing portion 6 is configured to extend in the normal direction or the substantially normal direction of the circle at the end of the cylindrical portion 21 in the circumferential direction. That is, the plate-like member of the reinforcing portion 6 is such that the angle θ2 formed by the enlarged diameter portion 23 and the reinforcing portion 6 at the circumferential end facing the notch 5 in the cylindrical portion 21 is 90 degrees. It is configured. Moreover, the cylindrical part 21 is comprised by the metal plate of 1 sheet. That is, the enlarged diameter part 23, the adjacent part 24, and the reinforcement part 6 are comprised by the metal plate of 1 sheet.

  Next, an example of a method of manufacturing the outer conductor 2 will be described with reference to FIGS. 5 and 6. FIG. 5 is a plan view showing an example of a method of manufacturing the outer conductor 2 provided in the coaxial connector 1 of FIG. FIG. 6 is a perspective view showing a process following FIG.

  First, as shown in FIG. 5, a metal plate (flat plate) is pressed to form a metal plate 2 a corresponding to the outer conductor 2. The metal plate 21a of the rectangular portion in FIG. 5 corresponds to the cylindrical portion 21, the metal plate 22aa of the portion extending downward from the rectangular portion corresponds to the mounting portion 22a, and the metal plate 22ba corresponds to the mounting portion 22b. There is.

  Next, the metal plate 22ba is connected to a tie bar, and the rectangular portion of the metal plate 21a is pressed, for example, by drawing or bending to form a metal plate 2b as shown in FIG. In the metal plate 2b, the metal plate 21b corresponds to the cylindrical portion 21, the metal plate 23b corresponds to the enlarged diameter portion 23, the metal plate 24b corresponds to the adjacent portion 24, and the metal plate 25b corresponds to the curved portion 25. The metal plate 6 b corresponds to the reinforcing portion 6. By pressing the metal plate 21a, the curved portion 25 and the reinforcing portion 6 can be simultaneously formed.

  Next, the metal plate 2b is bent so that the metal plate 21b corresponding to the cylindrical portion 21 has a cylindrical shape. At this time, the convex portion of the metal plate 25 b corresponding to the curved portion 25 is bent so as to come to the inside of the cylindrical shape to form the cylindrical portion 21 and the reinforcing portion 6. The end faces S1 and S2 are separated and bent to form a partially interrupted cylindrical shape, that is, a C-shaped shape, instead of the complete cylindrical shape.

  Next, the metal plate 22aa corresponding to the mounting portion 22a is bent in the ± X-axis direction, and the metal plate 22ba corresponding to the mounting portion 22b is bent in the −Y-axis direction. The external conductor 2 is formed by fixing the metal plate 22aa to the insulator 4 by caulking.

  According to the coaxial connector 1 according to the present embodiment, the cylindrical portion 21 is disposed on the outer peripheral surface side of the enlarged diameter portion 23 at the circumferential end facing the cutout portion 5 so that the enlarged diameter portion 23 is in the axial direction And the reinforcement part 6 to support. According to this configuration, the strength of the circumferential end of the cylindrical portion 21 of the outer conductor 2 is improved while the slight deformation of the outer conductor 2 is enabled by the reinforcing portion 6 provided at the circumferential end. Can. For this reason, it can suppress that the end part of the circumferential direction of the cylindrical part 21 in the external conductor 2 deform | transforms excessively, or is damaged.

  Further, according to the coaxial connector 1 according to the present embodiment, the reinforcing portion 6 maintains the angle formed by the enlarged diameter portion 23 and the adjacent portion 24, and the outer peripheral surface side of the enlarged diameter portion 23 and the adjacent portion 24 It is connected to the outer peripheral surface side. According to this configuration, the reinforcing portion 6 is connected to the outer peripheral surface side of the enlarged diameter portion 23 and the outer peripheral surface side of the adjacent portion 24, whereby the peripheral end of the cylindrical portion 21 in the outer conductor 2 is expanded. The angle formed between the diameter portion 23 and the adjacent portion 24 can be maintained. Thus, the strength of the circumferential end of the cylindrical portion 21 in the outer conductor 2 can be further improved.

  Moreover, according to the coaxial connector 1 which concerns on this embodiment, the reinforcement part 6 is comprised by the plate-shaped member extended in an axial direction. According to this configuration, by forming the reinforcing portion 6 with the plate-like member extending in the axial direction, the circumferential end portion of the cylindrical portion 21 in the outer conductor 2 with respect to the load in the axial direction can be obtained. The strength can be further improved. The axial load occurs when the outer conductor 2 of the coaxial connector 1 and the outer terminal of the other coaxial connector are fitted. For example, when the axial load is shifted between the center of the inner conductor 3 and the center of the inner terminal of the mating coaxial connector, the mating coaxial connector is also the outer conductor by fitting the coaxial connector 1 to the mating coaxial connector. It is also generated by rotating to apply a force to 2.

  Moreover, according to the coaxial connector 1 which concerns on this embodiment, the plate-shaped member is comprised so that it may extend in the normal line direction or substantially normal line direction of a circle in the edge part of the circumferential direction of the cylindrical part 21. . According to this configuration, the strength of the circumferential end of the cylindrical portion 21 in the outer conductor 2 can be further improved.

  Moreover, according to the coaxial connector 1 which concerns on this embodiment, the cylindrical part 21 is comprised by the metal plate of 1 sheet. According to this configuration, the reinforcing portion 6 can be easily manufactured without using another member for the reinforcing portion 6. In addition, since the cylindrical portion 21 is formed of a single member, that is, there is no need to provide the reinforcing portion 6 with another member, the coaxial connector 1 can be miniaturized and reduced in height.

  Moreover, according to the coaxial connector 1 according to the present embodiment, the coaxial connector 1 is a receptacle connector that fits with a plug connector connected to the coaxial cable, and the circumferential width of the notch 5 is the diameter of the coaxial cable It is the above width. According to this configuration, the overall height when fitting the plug connector and the receptacle connector can be further reduced.

  The present invention is not limited to the above embodiment, and can be implemented in various other aspects. For example, in the above embodiment, the coaxial connector 1 is a receptacle connector that is fitted to the plug connector of the other coaxial connector connected to the coaxial cable and mounted on the substrate, but the present invention is not limited to this. The coaxial connector 1 may be a plug connector for connecting with a coaxial cable, and may be fitted with a receptacle connector of a mating coaxial connector mounted on a substrate. Also by this configuration, the external conductor 2 can be minutely deformed and its strength can be improved.

  In addition, although the outer conductor 2 includes the cylindrical portion 21 formed in a cylindrical shape and the mounting portion 22 mounted on a substrate, the present invention is not limited to this. For example, the cylindrical portion 21 may not be cylindrical but may be rectangular. Also by this configuration, the external conductor 2 can be minutely deformed and its strength can be improved.

  In addition, although the internal conductor 3 has a mespin shape and the ospin-shaped internal terminal of the mating coaxial connector is inserted into the cylindrical internal space of the internal conductor 3, the present invention is not limited to this. The inner conductor 3 may have an ospin shape and be inserted into a mespin shaped inner terminal of the mating coaxial connector. Also by this configuration, the external conductor 2 can be minutely deformed and its strength can be improved.

  Further, although the reinforcing portion 6 is connected to the outer peripheral surface side of the enlarged diameter portion 23 and the adjacent portion 24 so as to maintain the angle θ1 formed by the enlarged diameter portion 23 and the adjacent portion 24, the present invention Is not limited to this. Reinforcement portion 6 disposed on the outer peripheral surface side of the enlarged diameter portion 23 at at least one circumferential end facing the cutout 5 in the cylindrical portion 21 and supporting the enlarged diameter portion 23 in the axial direction (Z direction) Should be provided. For example, the reinforcing portion 6 extends in the axial direction (Z direction) so as to support the enlarged diameter portion 23 in the axial direction (Z direction) without connecting the adjacent portion 24 from the outer peripheral surface side of the enlarged diameter portion 23 It may be done. Also by this configuration, the external conductor 2 can be minutely deformed and its strength can be improved.

  Moreover, although the cylindrical part 21 presupposed that it is comprised by the metal plate of 1 sheet, this invention is not limited to this. The enlarged diameter part 23, the adjacent part 24, and the reinforcement part 6 may be comprised by a respectively different member. Also by this configuration, the external conductor 2 can be minutely deformed and its strength can be improved.

  While the present invention has been fully described in connection with the preferred embodiments with reference to the accompanying drawings, various changes and modifications will be apparent to those skilled in the art. Such variations and modifications are to be understood as being included therein without departing from the scope of the present invention as set forth in the appended claims.

  INDUSTRIAL APPLICABILITY The coaxial connector according to the present invention can improve the strength while enabling minute deformation of the outer conductor, and thus is useful as a coaxial connector used by being fitted with a mating coaxial connector.

DESCRIPTION OF SYMBOLS 1 coaxial connector 2 outer conductor 2a, 2b, 21a, 21b, 22aa, 22ba, 23b, 24b, 25b, 6b metal plate 21 cylindrical part 22a, 22b mounting part 23 enlarged diameter part 24 adjacent part 25 curved part 26 groove 3 inside Conductor 4 Insulator 41a, 41b Recess 5 Notch 6 Reinforcement

Claims (6)

An outer conductor having a tubular portion;
An internal conductor extending in an axial direction of the cylindrical portion in an internal space of the cylindrical portion;
An insulator disposed between the one end portion in the axial direction of the cylindrical portion and the internal conductor;
A coaxial connector comprising
The cylindrical portion has a first portion whose circumferential length increases from the one end toward the other end in the axial direction, a notch cut out from the other end to the one end, and the notch And at least one circumferential end facing the portion, a reinforcing portion disposed on the outer peripheral surface side of the first portion to support the first portion in the axial direction.
Coaxial connector.   The reinforcing portion is connected to an outer peripheral surface side of the first portion and an outer peripheral surface side of a second portion adjacent to the first portion at the one end portion side in the cylindrical portion. Coaxial connector as described in.   The coaxial connector according to claim 1, wherein the reinforcing portion is configured by a plate-like member extending in the axial direction.   The cross section of the cylindrical portion orthogonal to the axial direction is configured in a C-shape in which a circle is partially cut out, and the plate-like member is a normal to the circle at the circumferential end of the cylindrical portion The coaxial connector of claim 3, wherein the coaxial connector is configured to extend in a direction or a substantially normal direction.   The coaxial connector according to any one of claims 1 to 4, wherein the tubular portion is formed of a single metal plate. The coaxial connector is a receptacle connector that mates with a plug connector that connects with the coaxial cable,
The coaxial connector according to any one of claims 1 to 5, wherein a width in a circumferential direction of the cutout portion is equal to or larger than a diameter of the coaxial cable.

Images