JP2001351748A - Floating coaxial connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floating coaxial connector which is easily mountable to a mounting base and having no risk of exerting adverse offsets to its high frequency characteristics. SOLUTION: In this floating coaxial connector, at least one connector of a pair of mutually fitted connectors is formed movably relative to a mounting base. It is equipped with a fixed connector 42 fixed to the mounting base and to a movable connector 43 connected to the fixed connector 42, movably relative to the mounting base with its posture kept parallel with the mounting base, and its fitting error is absorbed by the movable connector 43 which mover in a direction approaching to and moving away from the mounting base with its attitude kept parallel with the mounting base.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a floating connector, and more particularly to a floating coaxial connector for a high-frequency coaxial cable.

[0002]

2. Description of the Related Art Generally, a floating connector has a pair of connectors which are fitted to each other, and one of the connectors is movably provided with respect to a mounting board, so that a fitting error when the connectors are fitted can be absorbed. It has become.

[0003] Of the conventional floating connectors, for a coaxial cable, for example, US Patent No. 5,769,652
There are those described in the issue.

FIG. 7 illustrates a floating coaxial connector described in US Pat. No. 5,769,652.

The coaxial connector 1 includes a main body 2, a contact 3 provided on the main body 2, the contact 3 and the main body 2.
And an insulator 4 interposed therebetween.

The main body 2 includes a substrate-side main body 6 fixed to the substrate 5, and a fitting-side main body 8 loosely fitted into a hole 7 of the substrate-side main body 6.
The board-side main body 6 penetrates a predetermined position of the board 5 and is soldered and joined from the back side of the board 5. The board-side end 9 of the fitting-side main body 8 is bent outward,
A flange 10 is formed on the opposite side of the substrate from the substrate side end 9. The substrate-side end 9 is hooked on the inner edge surface of the hole 7, and a washer-like spring 11 is interposed between the flange portion 10 and the outer surface of the substrate-side main body 8. The portion 10 is pressed toward the opposite side of the substrate, so that the connection state between the fitting-side main body 8 and the substrate-side main body 6 is maintained.

The contact 3 includes a fixed contact 12 fixed vertically to the substrate 5, and a movable contact 14 linearly connected to the fixed contact 12 via a coil spring 13. Penetrates a predetermined position of the substrate 5 and is joined by soldering from the back side of the substrate 5.

The insulator 4 is a board-side insulator 15 provided between the fixed contact 12 and the fitting-side main body 8.
And a fitting-side insulator 16 provided between the movable contact 14 and the fitting-side main body 8. The tip of the fixed contact 12 is loosely fitted to the board-side insulator 15, the board-side insulator 15 is integral with the fitting-side main body 8, and the fitting-side insulator 16 is It is integral with the contact 14 and the fitting side main body 8. Therefore, the movable contact 14 is connected to the fitting side main body 8,
The board-side insulator 15 and the fitting-side insulator 16 can be integrally floated.

In this case, the fitting error of the contact 3 when the coaxial connector 1 is fitted to the mating connector (not shown) is absorbed by the elastic displacement of the coil spring 13 and is shown in FIG. As described above, the fitting-side main body 8, the board-side insulator 15, and the fitting-side insulator 16 float according to the movement of the movable contact 14. Thereafter, when the mating side main body 8 and the main body (not shown) of the mating connector are mated, the movable connector 14 is in a state of being connected to the contact (not shown) of the mating connector.

[0010]

However, in the floating coaxial connector described in U.S. Pat. No. 5,769,652, the fixed contact 12 is attached to the substrate 5 by an operator using the fitting side main body 8. The fixed contact 12 is not fixed to the fitting-side main body 8, so that the fixed contact 12 swings when the coaxial connector 1 is attached to the substrate 5. And the installation work is troublesome.

Further, since the coil spring 13 interposed between the fixed contact 12 and the movable contact 14 may adversely affect high-frequency characteristics, the coaxial connector 1 is used for a high-frequency coaxial cable. Not suitable.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and can be connected in a direction parallel to a mounting substrate, can be easily mounted on the mounting substrate, and may adversely affect high-frequency characteristics. There is no floating coaxial connector provided.

[0013]

SUMMARY OF THE INVENTION The present invention is a floating coaxial connector in which at least one of a pair of connectors fitted to each other is movably formed with respect to a mounting board, and is fixed to the mounting board. Fixed contact, and a movable contact connected to the fixed contact so as to be movable with respect to the mounting board while maintaining a substantially parallel posture with respect to the mounting board. .

In a preferred embodiment, the fixed contact is insulated from the fixed contact and surrounds the fixed contact. The fixed external conductor is movable with respect to the mounting board while maintaining a substantially parallel posture with respect to the mounting board. A movable outer conductor that is connected to the fixed outer conductor, is insulated from the movable contact, and surrounds the movable contact.

Further, the fixed contact has a vertical portion perpendicular to the mounting board, and the movable contact is movably connected along the vertical portion of the fixed contact via an urging means.

Preferably, the fixed outer conductor has a vertical portion perpendicular to the mounting board, and the movable outer conductor is movably connected along the vertical portion of the fixed contact via a biasing means. ing.

In addition, the apparatus further comprises a housing made of an insulator, the housing fixing the fixed outer conductor and the fixed contact, and movably supporting the movable outer conductor and the movable contact.

Further, the housing supports the movable outer conductor via a metal ring.

Further, the present invention is a floating coaxial connector in which at least one of a pair of connectors fitted to each other is movably formed with respect to a mounting board, wherein the fixed contact fixed to the mounting board is provided. A movable contact connected to the fixed contact so as to be movable with respect to the mounting board while maintaining a substantially vertical posture with respect to the mounting board, wherein the fixed contact is horizontal with respect to the mounting board. It has a horizontal portion, and the movable contact is movably connected along the horizontal portion of the fixed contact via biasing means.

In a preferred embodiment, the fixed contact is insulated from the fixed contact and surrounds the fixed contact. The fixed external conductor is movable with respect to the mounting board while maintaining a substantially vertical posture with respect to the mounting board. A movable external conductor that is connected to the fixed external conductor, is insulated from the movable contact, and surrounds the movable contact.The fixed external conductor has a horizontal portion that is horizontal to the mounting board,
The movable outer conductor is movably connected along the horizontal portion of the fixed contact via biasing means.

In such a configuration, a fitting error when the connector is fitted is caused by the fact that the movable outer conductor and the movable contact are attached to the mounting board in a state where the movable external conductor and the movable contact are maintained in a substantially parallel posture or a vertical posture with respect to the mounting board. It is absorbed by moving against it.

[0022]

Embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 and 2 show a male connector 21 of a floating coaxial connector. The male connector 21 is provided with a housing 22, an external conductor 23 provided in the housing 22, and an external conductor 23 provided in the external conductor 23. Contact 24 provided. The housing 22 is made of an insulator, for example, a synthetic resin, and has a substantially rectangular parallelepiped shape. A flange 25 is formed on the non-fitting side, and a corner on the fitting side is chamfered. Guide grooves 26 are formed on both side surfaces of the housing 22, and tapered surfaces are formed on the fitting sides of the guide grooves 26. In the housing 22, a required number (for example, four) of through-holes 27 are bored horizontally inside, and a required number of fixing brackets 28 are press-fitted into the bottom portion. The connector 21 is fixed to a horizontal board (not shown).

The outer conductor 23 has a fixed outer conductor 29 which is press-fitted into the through hole 27 from the side opposite to the fitting, and a movable outer conductor 30 which is inserted into the through hole from the side of the fitting. The fixed outer conductor 29 is, for example, made of brass, and is attached so as to form the same surface as the press-fit portion 31 formed by bending a phosphor bronze plate into a box shape and the outer surface on the non-fitting side of the housing 22. And an outer lid plate 32.
The press-fit portion 31 includes a vertical portion 33 that is perpendicular to the horizontal substrate and faces the outer lid plate 32, and a hole 34 is formed in the vertical portion 33.

The movable outer conductor 30 is made of, for example, brass and has a substantially cylindrical shape. The opposite end of the movable outer conductor 30 passes through the hole 34 in a horizontal posture. Flange 35
And a step portion 36 which can contact the vertical portion 33 is formed. An annular washer-like spring 38 is interposed between the tip flange portion 35 and the vertical portion 33 via a washer 37, and the repelling force of the washer-like spring 38 causes the vertical portion 33 to move.
And the stepped portion 36 is kept in contact. The washer-like spring 38 has an outer diameter of the hole 34.
And the inside diameter is equal to the diameter of the hole 34. A flange 39 is formed at the fitting end of the movable outer conductor 30, and a tapered surface 40 is formed on the inner surface of the flange 39. Further, a ring 41 made of, for example, brass is interposed between the movable outer conductor 30 and the housing 22, and the ring 41 is engaged with the non-fitting side of the flange portion 39. I have.

The contact 24 includes a fixed contact 42 fixed to the horizontal substrate, and a movable contact 43 movably provided with respect to the substrate. The fixed contact 42 is fixed to the housing 22 and is fixed to the housing 22. It is surrounded by an outer conductor 29. The fixed contact 42 has a cross section obtained by stepwise bending a metal plate, for example, a phosphor bronze plate, and has a mounting portion 44 surface-mounted on the horizontal substrate by soldering, and is perpendicular to the horizontal substrate. A vertical portion 45, and a hole 46 is formed in the vertical portion 45. The movable contact 43 is made of, for example, beryllium copper. A fitting portion 48, a head portion 49 formed at the tip of the non-fitting side, and a flange portion 5 that can contact the vertical portion 45.
0. An annular washer-like spring 51 is interposed between the head portion 49 and the vertical portion 45, and the repulsive force of the washer-like spring 51 causes the vertical portion 45 and the flange portion 50 to come into contact with each other. Is to be retained. An annular first insulator 52 and a second insulator 53 are interposed between the movable contact 43 and the movable outer conductor 30, and the first insulator 52 is provided on the opposite side of the shaft portion 47 from the mating side. The second insulator 53 is provided on the fitting side of the shaft portion 47, and the movable contact 43 is held concentrically with the movable outer conductor 30.

FIGS. 3 and 4 show a female connector 54 of a floating coaxial connector. The female connector 54 is concentric with the housing 55, an external conductor 56 provided in the housing 55, and the external conductor 56. And a contact 57 provided in the contact. The housing 55 is made of an insulator, for example, a synthetic resin, and has a box shape with a fitting side and a bottom side opened, and a fitting recess 58 into which the male housing 22 can fit, and a convex shape on the inner surface of the side wall. Guide part 5 formed in
9 and a required number of fixing portions 60 formed integrally with the housing 55 and fixed to a vertical substrate (not shown), and the inside of the fitting side end of the housing 55 is chamfered.

The outer conductor 56 is made of, for example, brass and has a substantially cylindrical shape. The non-fitting side is fixed to the housing 55, and the outer peripheral portion of the fitting-side tip portion 62 is rounded.
The contact 57 is, for example, a pin made of phosphor bronze and has a pointed tip at the fitting side, and is provided concentrically with the external conductor 56 with an insulator 61 interposed therebetween.

Next, referring to FIGS. 5 and 6, the action of the connector when connecting the male connector 21 mounted on the horizontal board and the female connector 54 mounted on the vertical board will be described. explain.

The guide portion 5 of the female housing 55
9 so that the female connector 9 fits into the guide groove 26 of the male housing 22.
When the male housing 21 is pushed into the male housing 21, the male housing 21 starts to be fitted into the fitting recess 58 of the female housing 55, as shown in FIG. Since the fitting ends of the male housing 22 and the female housing 22 and the fitting grooves 26 and the guide portions 59 are chamfered, the fitting operation of the male housing 22 and the female housing 55 is performed. Is performed smoothly.

If the male contact 24 and the female contact 57 are out of alignment, the female external conductor 5
6 is in contact with the tapered surface 40 of the movable outer conductor 30. When the female connector 54 is further pushed into the male connector 21, the tapered surface 40 is pressed by the fitting-side tip 62, and the movable external conductor 3 is pressed.
A force in an arbitrary direction perpendicular to the zero axis (for example, upward in FIG. 5) acts on the movable outer conductor 30. With the force, the step portion 36 of the movable outer conductor 29 slides along the vertical portion 33 of the fixed outer conductor 29, and the movable contact 4 moves with the movement of the movable outer conductor 29.
The third flange portion 39 slides along the vertical portion 45 of the fixed contact 42. At this time, the stepped portion 36 and the vertical portion 33 are
Is maintained, the contact between the flange portion 39 and the vertical portion 45 is maintained by the repulsive force of the washer-like spring 51, and the movable outer conductor 30 and the movable contact 4 are maintained.
3 are integrally moved while maintaining a substantially parallel posture with respect to the horizontal substrate, for example, move upward in FIG. Even if the axes of the male contact 24 and the female contact 57 are shifted in a direction parallel to the substrate, the movable external conductor 30
The movable contact 43 and the movable contact 43 integrally move in a direction parallel to the substrate while maintaining a substantially horizontal posture with respect to the substrate. At this time, the movable outer conductor 30 and the movable contact 43 also slightly move in the axial direction. In addition, since the ring 41 is interposed between the movable outer conductor 29 and the male housing 22, the male housing 22 may be stripped or damaged by the movable outer conductor 30. There is no.

When the movable outer conductor 30 and the movable contact 43 move, and the axes of the male contact 24 and the female contact 57 coincide with each other, the female housing 5
5 is provided on the male housing 22 with the female external conductor 56.
Is fitted to the movable outer conductor 30, the female contact 57 is fitted to the movable contact 43, and the female connector 54 and the male connector 21 are electrically connected.

In the above embodiment, the coaxial connector which can be connected in a direction parallel to the mounting board has been described. However, instead of the vertical sections 33 and 45, a parallel section parallel to the mounting board is used. The present invention can be implemented even when the connection is made in a direction perpendicular to the mounting board. In this case, the movable outer conductor and the movable contact can move in a direction parallel to the mounting board while maintaining a vertical posture with respect to the mounting board.

The washer-like springs 38 and 51 are means for urging the vertical portion 33 and the step portion 36 or the vertical portion 45 and the flange portion 50 so as to maintain the contact state. The material, the shape and the like may be any. In the above embodiment, the washer-like spring 3
8, 51, the vertical portion 33 and the step portion 36, the vertical portion 4
Although the flange 5 and the flange 50 are provided at the opposite end of the fitting side, they may be provided at the fitting side.

Further, in the above embodiment, the surface mount type connector has been described, but it is needless to say that the present invention can be applied to other types of connectors. Also, 1
The number of connectors provided in one housing is not limited to four, and may be three or less or five or more. Further, the materials of the above-described respective constituent members are merely examples, and Other materials may be used as long as they have the same characteristics as the above materials.

[0036]

As described above, according to the present invention, since the fixture and the fixed contacts for the mounting board are fixed to the housing, the work of mounting the connector to the mounting board becomes easy. Furthermore, since a member that adversely affects high-frequency characteristics such as a coil spring is not used for connecting the fixed connector and the movable connector, various excellent effects such as maintaining good high-frequency characteristics can be exhibited.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an embodiment of the present invention.

FIG. 2 is a partial plan sectional view showing the embodiment of the present invention.

FIG. 3 is a transverse sectional view showing the embodiment of the present invention.

FIG. 4 is a partial plan sectional view showing the embodiment of the present invention.

FIG. 5 is a cross-sectional view showing a process of fitting the connector in the embodiment of the present invention.

FIG. 6 is a cross-sectional view showing a state where the connector is fitted in the embodiment of the present invention.

FIG. 7 is a sectional view showing a conventional example.

FIG. 8 is a cross-sectional view showing a floating state in a conventional example.

[Explanation of symbols]

 Reference Signs List 21 male connector 22 housing 23 outer conductor 24 contact 29 fixed outer conductor 30 movable outer conductor 33 vertical portion 38 washer-like spring 41 ring 42 fixed contact 43 movable contact 45 vertical portion 51 washer-like spring 52 first insulator 53 second insulation body

Claims (8)

[Claims] 1. A pair of connectors which are fitted with each other,
At least one connector is a floating coaxial connector movably formed with respect to the mounting board, and a fixed contact fixed to the mounting board; and A movable contact connected to the fixed contact so as to be movable with respect to the floating contact. 2. A fixed external conductor insulated from the fixed contact and surrounding the fixed contact, and the fixed external conductor movably with respect to the mounting board while maintaining a substantially parallel posture with respect to the mounting board. The floating coaxial connector according to claim 1, further comprising a movable outer conductor connected to a conductor, insulated from the movable contact, and surrounding the movable contact. 3. The fixed contact has a vertical portion perpendicular to the mounting board, and the movable contact is movably connected along the vertical portion of the fixed contact via an urging means. Item 2. The floating coaxial connector according to Item 1. 4. The fixed external conductor has a vertical portion perpendicular to the mounting board, and the movable external conductor is movably connected along the vertical portion of the fixed contact via an urging means. The floating coaxial connector according to claim 2, wherein 5. The semiconductor device according to claim 2, further comprising a housing made of an insulator, wherein the housing fixes the fixed outer conductor and the fixed contact and movably supports the movable outer conductor and the movable contact. Floating coaxial connector as described. 6. The floating coaxial connector according to claim 5, wherein the housing supports the movable outer conductor via a metal ring. 7. A pair of connectors which are fitted with each other,
At least one connector is a floating coaxial connector movably formed with respect to the mounting board, wherein the fixed contact is fixed to the mounting board, and the mounting board is held substantially vertically with respect to the mounting board. A movable contact connected to the fixed contact so as to be movable with respect to the fixed substrate, wherein the fixed contact has a horizontal portion that is horizontal with respect to the mounting substrate, and the movable contact is fixed via biasing means. A floating coaxial connector movably connected along said horizontal portion of a contact. 8. A fixed outer conductor insulated from the fixed contact and surrounding the fixed contact; and the fixed outer conductor movably with respect to the mounting board while maintaining a substantially vertical posture with respect to the mounting board. A movable external conductor insulated from the movable contact and surrounding the movable contact, wherein the fixed external conductor has a horizontal portion that is horizontal with respect to the mounting board, 8. The floating coaxial connector according to claim 7, wherein the floating coaxial connector is movably connected along the horizontal portion of the fixed contact via a biasing means.