TWI761862B - Coaxial connector with floating mechanism - Google Patents

Abstract

The invention provides a coaxial connector with a floating mechanism that has few components and can be miniaturized while maintaining floating performance, and offers excellent high-frequency performance. A coaxial connector 1 with a floating mechanism comprises a shell body 41 in which a plug side central contact 3 and a plug side insulator 5 are held in a plug side shell 4, and a movable shell 42 which is slidably supported by the shell body 41 and engages with a socket side shell 7, wherein by including, in the shell body 41, an insertion recess section 413 which is open at the socket side end face and into which a movable housing 82 can be inserted, excellent high frequency performance can be obtained.

Description

Coaxial Connector with Floating Mechanism

The present invention relates to a coaxial connector used for connection between an electronic device and a coaxial cable, or between electronic devices, and more particularly, to a coaxial connector with a floating mechanism excellent in connection between a plug and a socket.

The receptacle of such a coaxial connector includes a receptacle-side center contact member disposed in the center of the receptacle, and a receptacle-side housing disposed outside the receptacle-side center contact member; and when connected to a plug, the receptacle-side center contact member and the receptacle The side housings, both need to be properly connected to the plug-side center contact member and the plug-side housing of the other.

Therefore, even if there is an axial or radial dislocation between the plug and the socket connected to each other due to the installation position of the socket and the plug on the supporting body such as the substrate or chassis built in the electronic device, it is necessary to connect the two sockets. When using a coaxial connector, correct the misalignment.

In view of this, in the conventional receptacle of the coaxial connector, one with a floating mechanism is used. The movable part of the cover is supported by a socket base fixed to a support body such as a substrate or a case, and is relatively movable in the radial direction (xy-axis direction) (for example, refer to Patent Document 1).

The socket base includes: a cylindrical socket-side housing disposed on the outer side of the movable cover, a socket-side center contact member disposed in a central portion of the socket-side housing, and a socket-side insulator that insulates the socket-side center contact member from the socket-side housing A coil spring or a disc spring or other urging means for urging the connector body held by the socket side shell in the radial direction; and even if axial displacement occurs, the movable part of the cover body can still be connected to the plug.

[Previously known technical documents]

[Patent Documents]

[Patent Document 1] Japanese Patent Application Laid-Open No. 2008-262736

However, for coaxial connectors, high-frequency performance is very important; however, with floating mechanisms, once the center conductor and the socket body move together, and the axial misalignment between the center conductor and the center conductor of the socket base occurs, it will lead to high risk of degraded frequency performance.

Furthermore, for a coaxial connector, as shown in the following formula 1, if the outer diameter of the plug-side center contact member is relative to the outer diameter of the plug-side center contact member, the outer diameter ( thick The higher the resistance, the higher the impedance. Therefore, in order to properly set the impedance, it is better not to set the outer diameter (thickness) of the movable part of the cover to be too large.

In the above formula, Z _ox is impedance, d is the diameter of the plug-side center contact member, D is the diameter of the movable part of the cover, and εr is the dielectric constant based on the material of the movable part of the cover.

On the other hand, if the outer diameter (thickness) of the movable cover is too small relative to the inner diameter of the plug-side outer case, the dielectric constant between the movable cover and the plug-side outer case is lower than that of the resin. the air layer, so the impedance will increase further.

Furthermore, since the conventional coaxial connector with a floating mechanism is provided with a movable part of the cover that is mutually connected with the other coaxial connector, and a base of the connector that can hold the fixed part of the cover to be movable, Since each individual is different, the overall shape of the coaxial connector increases accordingly, and there is a problem that miniaturization is hindered.

Furthermore, in the conventional coaxial connector with a floating mechanism, it is necessary to have a coil spring or a disc spring that applies force to the movable part of the cover body in the axial or radial direction, which leads to a corresponding increase in the number of parts and the cost of the product. Or the problem of increased manufacturing steps.

Still further, in such a conventional coaxial connector with a floating mechanism, the cover is The center contact member of the movable part and the center conductor of the connector base are formed as separate bodies, and the connector body can be moved in the axial and radial directions relative to the movable part of the cover body, so it is necessary to make the center contact member and the center conductor mutually Movable and electrically connected structures have the problem of structural complexity.

In view of this, in consideration of such a conventional problem, the present invention is developed based on the following objectives: to provide a coaxial connector with a floating mechanism, which can ensure the floating performance, reduce the number of parts, and can be miniaturized, and also Has excellent high frequency performance.

In order to solve the above-mentioned conventional problems, the features of the invention set forth in claim 1 are: a coaxial connector with a floating mechanism, including a plug and a receptacle connected to each other; the plug has a center contact member on the plug side arranged in the center , a plug-side shell disposed on the outer side of the plug-side center contact member, and a plug-side insulator sandwiched between the plug-side center contact member and the plug-side shell; the socket has a center-disposed socket-side center contact member, A cover base fixed to an embedded substrate, an electronic device housing, or a coaxial cable, a cover movable portion that can move radially with the socket-side center contact member on the plug-side end face of the cover base, and a cover The socket-side housing on the outer side of the housing base; a coaxial connector with a floating mechanism for connecting the plug-side central contact member with the socket-side central contact member and connecting the plug-side housing with the socket-side housing at the same time , the socket-side housing has an outer peripheral wall portion covering the outer periphery of the cover base without joints, and an annular top surface shielding portion integrally supported by the upper edge of the outer peripheral wall portion; the plug-side housing , comprising a housing body that holds the plug-side center contact member and the plug-side insulator, and a movable housing that is swingably supported by the housing body and fitted with the socket-side housing; the A housing main body is provided with a recessed portion for insertion into which the movable portion of the cover body is opened at the end face on the side of the socket; the thick wall portion of the housing main body in which the recessed portion for insertion is formed constitutes a fixed shielding wall, and the movable housing is arranged on the fixed shielding wall. Outside the shielding wall.

The feature of the invention set forth in claim 2, in addition to the constitution of claim 1, is that the socket is provided with a spring body for floating, one end of the spring body for floating is fixed to the base of the cover body, and the other end is fixed to the movable cover body part; the floating spring body is provided with a supporting and fixing part fixed to the base of the cover body, a floating fixing part fixed to the movable part of the cover body, and a swinging spring that connects the supporting and fixing part and the floating fixing part and can be elastically deformed The movable part of the cover is movably supported on the base of the cover via the floating spring body.

The feature of the invention set forth in claim 3, in addition to the constitution of claim 2, is that the socket-side center contact member includes a contact portion that moves together with the cover movable portion, and a board connection terminal piece connected to the embedded board The contact portion is integrally supported on the floating fixing portion, the board connecting terminal piece is integrally supported on the supporting fixing portion, and the socket-side center contact member is integrated with the floating spring body.

The coaxial connector with a floating mechanism of the present invention has the configuration described in claim 1, so that even when the outer diameter of the movable part of the cover is reduced, the socket-side housing and the movable part of the cover are not connected. An air layer is formed between them, and the impedance matching is excellent, which ensures high high-frequency performance. Furthermore, according to the present invention, deterioration of high-frequency performance and shielding characteristics can be suppressed.

Furthermore, in the present invention, by having the structure described in claim 2, the part connected to the plug and the part constituting the floating mechanism can be integrally formed, so that the size of the connector can be reduced, and the parts can be reduced at the same time. reduction in number.

Still further, in the present invention, by having the configuration described in claim 3, the number of parts can be reduced and the assembly work can be simplified, and at the same time, since the center contact member on the socket side follows the movement of the movable portion of the cover, it is possible to Displacement of the center shaft in the connector is prevented, and the degradation of high-frequency performance can be suppressed.

1: Coaxial connector with floating mechanism

11: Plug

12: Socket

3: Center contact member on the plug side

31: Contact part

32: Terminal part

4: Plug side shell

41: shell body

411: Insulator accommodating hole

411a: Expansion part

411b: Reduced diameter part

411c: Section

412: Control cover department

413: Recess for insertion

414: Fixed shielding wall

42: Movable housing

421: Caulking

422: Slit

423: elastic contact sheet

423a: Contact part

5: Plug side insulator

51: Insulator main body

52: Expanded diameter cylinder

6: Socket side center contact member

61: Board connection terminal piece

621: Elastic clamping piece

62: Connection part

622: Contact

63: Support sheet

64: Prevent the guide from falling off

7: Socket side shell

71: Outer peripheral wall

72: Top shield

72a: Opening

73: Board connection part

81: Cover body base

811: Contact member receiving portion

812: Support fixing part press-in part

813: Avoid Groove

814: Guide groove

82: Cover movable part

821: Movable main body

821a: Induced Facial

821b: Contact member insertion hole

822: Protrusion

823: Sliding part

824: Contact member accommodation

825: Fixed part press-fit hole

826: Avoid Groove

9: Spring body for floating

91: Support fixed part

92: Floating fixed part

921: Bulge

93: Swing spring part

931: Elastic expansion part

932: Turn-back Department

933: Turn-back Department

934: Impedance adjustment part

935: Turn-back Department

99: Floating spring body with contact member (integrated spring body)

1 is an exploded perspective view showing an example of a coaxial connector with a floating mechanism according to the present invention.

FIG. 2 is an exploded perspective view of the plug in FIG. 1 .

[Figure 3] (a) is the front view of the same, (b) is the bottom view of the same, and (c) is the vertical section of the same.

FIG. 4 is an exploded perspective view of the socket in FIG. 1 .

[Fig. 5] (a) is an enlarged longitudinal sectional view showing the same socket, and (b) is a sectional view along the line A-A thereof.

[Fig. 6] (a) is a front view of the floating spring body of the same socket, (b) is a top view, (c) is a B-B line cross-sectional view, and (d) is a C-C line cross-sectional view.

[FIG. 7] (a) is a top view showing the base of the cover of the same socket, (b) is a D-D line cross-sectional view, and (c) is a longitudinal cross-sectional view.

[Fig. 8] (a) is a perspective view showing the same socket side shell, (b) and (c) are both (a) The longitudinal section is the longitudinal section taken from two longitudinal sections intersecting with each other.

[Fig. 9] (a) is a top view showing the movable part of the cover body as above, (b) is a bottom view thereof, (c) is a cross-sectional view along the line E-E, and (d) is a longitudinal cross-sectional view thereof.

[FIG. 10] A longitudinal sectional view illustrating the operation of the coaxial connector with a floating mechanism of the present invention, (a) is a state without axial dislocation, (b) shows a shaft in the front-rear direction (x-axis direction) Towards the schema of the dislocated state.

[FIG. 11] A longitudinal sectional view illustrating the operation of the coaxial connector with a floating mechanism of the present invention, (a) is a state without axial dislocation, (b) shows a shaft in the left-right direction (y-axis direction) Towards the schema of the dislocated state.

Next, the embodiment of the present invention will be described based on the embodiments shown in FIGS. 1 to 11 . The symbol 1 in the figure is a coaxial connector with a floating mechanism.

The coaxial connector 1 with a floating mechanism includes a plug 11 and a socket 12 connected to each other; the plug 11 and the socket 12 can be connected to each other while correcting the misalignment in the radial direction (xy-axis direction) by the floating mechanism .

As shown in FIGS. 2 and 3 , the plug 11 includes a plug-side center contact member 3 made of a conductive metal material disposed in the center, a plug-side housing 4 disposed outside the plug-side center contact member 3 , and a clip An insulating plug-side insulator 5 between the plug-side center contact member 3 and the plug-side housing 4; The head-side insulator 5 and the plug-side center contact member 3 are inserted into the plug-side housing 4 .

The plug-side central contact member 3 is formed into a pin-bar shape with a conductive metal material; one end of the plug-side central contact member 3 is a contact portion 31 that is in contact with the socket-side central contact member 6, and the other end is connected to a coaxial cable or other electronic device the terminal portion 32.

The plug-side insulator 5 is integrally molded with insulating resin; it includes: a cylindrical insulator body portion 51 and a cylindrical enlarged diameter cylindrical portion 52 protruding toward the rear end side of the insulator body portion 51; the plug-side insulator 5 The insulator main body portion 51 and the enlarged diameter cylindrical portion 52 have a stepped convex shape.

Furthermore, in the plug-side insulator 5, the plug-side center contact member 3 is embedded in the insulator body portion 51 in a state where both ends, that is, the contact portion 31 and the terminal portion 32 protrude.

The enlarged diameter cylindrical portion 52 is formed into a bottomed cylindrical shape having an outer diameter larger than that of the insulator main body portion 51 and an opening on the top surface, and the terminal portion 32 protrudes into the enlarged diameter cylindrical portion 52 from the bottom surface.

The plug-side housing 4 includes a housing body 41 that holds the plug-side center contact member 3 and the plug-side insulator 5 , and a movable housing 42 that is swingably supported by the housing body 41 and fitted to the receptacle-side housing.

The housing body 41 is cast from a conductive metal material, and is formed into a cylindrical shape with an insulator accommodating hole 411 , the insulator accommodating hole 411 is fixed in the center to accommodate the plug-side insulator 5 ; the base end of the movable housing 42 is anchored to the outer periphery of the housing body 41 . The lower half of the surface is supported so that the movable housing 42 is swingably supported.

A control cover portion 412 is provided on the outer side of the housing main body 41 at a distance from the movable housing 42; by inserting the base end side of the movable housing 42 into the inner side of the control cover portion 412, the movable housing 42 is allowed to be anchored to the base The end is the base point for swinging, and controls the swinging range of the movable housing 42 .

In addition, the housing main body 41 is provided with a recessed portion 413 for insertion open on the end face of the socket side at the end portion on the socket side, which communicates with the socket side of the insulator accommodating hole 411 .

The insulator accommodating hole 411 is formed into a stepped hole by continuously communicating with the enlarged diameter portion 411a and the reduced diameter portion 411b having different inner diameters; The plug-side insulator 5 is held to the housing body 41 by making the end face of the enlarged diameter cylindrical portion 52 of the plug-side insulator 5 abut against the segment portion 411c.

The insertion recess 413 is formed in the shape of a circular hole opening on the housing side; the plug-side center contact member 3 , the insertion recess 413 and the thick portion of the housing body 41 are concentrically arranged, and the thick portion constitutes the fixed shield wall 414 . In addition, the end portion of the case-side insulator 5 does not protrude into the insertion recess 413 .

The insertion recess 413 is formed so that the inner diameter is determined based on the outer diameter of the cover movable portion 82 of the receptacle 12 described later, so that the cover movable portion 82 can be inserted substantially without gaps, and the depth is formed to accommodate the cover. Movable part 82 .

The movable casing 42 is formed into a cylindrical shape by punching a conductive metal plate, and the The base end is fitted on the outer side of the housing main body 41 and is the inner side of the control cover 412 ; In the figure, reference numeral 421 denotes a caulked portion.

The movable casing 42 is longer in the axial direction than the distance from the anchoring position of the movable casing 42 to the end face of the casing body 41 on the socket side; And inside the extension part, the socket side shell 7 is inserted, and the socket side shell 7 is arranged on the outer side of the cover base 81 of the socket 12 which will be described later.

Furthermore, the movable housing 42 is formed with a plurality of slits 422, 422, . A plurality of elastic contact pieces 423, 423 are formed.

Furthermore, on the distal end side of each elastic contact piece 423, 423, a contact portion 423a bulging inward is formed, and the contact portion 423a contacts the outer peripheral surface of the socket-side housing 7 embedded in the extension portion.

As shown in FIGS. 4 and 5 , the socket 12 includes: a socket-side center contact member 6 arranged in the center, a cover base 81 fixed to a support such as a substrate or an electronic device case, and a plug that can be attached to the cover base 81 The movable part 82 of the cover on the side end surface moves radially together with the center contact member 6 on the socket side, and the shell 7 of the socket side covering the outer side of the base part 81 of the cover; and shell.

Then, the socket 12 is provided with a spring body 9 for floating, one end of which is fixed to the cover base 81 and the other end is fixed to the cover movable part 82; The spring body 9 is movably supported on the cover body base 81 to form a floating mechanism.

Furthermore, in this socket 12, a contact-member-attached spring body (hereinafter, referred to as a floating spring body) is used, which is composed of a conductive metal plate that integrates the socket-side central contact member 6 and the floating spring body 9. body type spring body) 99, so that the center contact member 6 on the socket side can follow the movement of the movable part 82 of the cover body.

As shown in FIG. 6, the integral spring body 99 is integrally formed by die-cutting and bending of an elastic conductive metal plate, so as to have the following structure: the socket is integrally supported by the floating spring body 9 The side center contact member 6, and a part of the configuration of the socket side center contact member 6 is also used as the spring body 9 for floating.

The floating spring body 9 includes: a support and fixed part 91 fixed to the cover base 81 , a floating fixed part 92 fixed to the cover movable part 82 , and a swingable elastically deformable connecting support and fixed part 91 and the floating fixed part 92 The spring part 93; the supporting and fixing part 91 and the floating and fixing part 92 are arranged in parallel with each other at the front and rear, and the floating and fixing part 92 can move back and forth relative to the supporting and fixing part 91 by the elastic deformation of the swinging spring part 93 and swing left and right.

The supporting and fixing portion 91 is formed in a rectangular shape; the upper end thereof integrally supports one end of the swinging spring portion 93;

The rocking spring portion 93 is integrally provided with: an elastic expansion-contraction portion 931 that can expand and contract in the direction between the support-fixed portion 91 and the floating-fixed portion 92 , that is, in the front-rear direction; The elastic torsion part of the axis of the direction is twisted; through the expansion and contraction of the elastic expansion and contraction part 931, the floating fixed part 92 is allowed to move in the front-rear direction relative to the support and fixed part 91; by the twist of each elastic torsion part, the floating fixed part is allowed 92 moves in the left-right direction relative to the supporting and fixing portion 91; and can be restored to its original position by elasticity.

The elastic expansion and contraction portion 931 extends obliquely downward while the upper end is supported by the upper edge of the support and fixing portion 91 through the turn-back portion 932 bent in an arc shape; The impedance adjusting portion 934 extending in the horizontal direction is supported.

Then, the elastically stretchable portion 931 can expand and contract in the direction between the support-fixed portion 91 and the floating-fixed portion 92, that is, in the front-rear direction, by being bent with the two folded-back portions 932 and 933, and is elastically stretched. return to its original position.

The impedance adjusting portion 934 is formed in a thin plate shape extending in the horizontal direction; one end of the impedance adjusting portion 934 is supported by the elastic expansion and contraction portion 931 via the folded portion 933 , and the other end is supported by the lower edge of the floating fixing portion 92 via the folded portion 935 . integral support.

The impedance adjusting portion 934 can change the plate width in the left-right direction during press forming; by appropriately changing the width of the impedance adjusting portion 934, the center of the socket side integrated with the floating spring body 9 can be connected. The impedance of the contact member 6 is adjusted to an appropriate value.

The folded-back portions 932 , 933 , and 935 are formed to be narrower than the plate widths of the support-fixed portion 91 and the floating-fixed portion 92 , respectively, and constitute an elastic torsion portion of the swing spring portion 93 .

That is, when the floating fixing portion 92 is relatively moved in the left-right direction with respect to the supporting and fixing portion 91 , the folded-back portions 932 , 933 , and 935 can surround the space between the supporting and fixing portion 91 - the floating and fixing portion 92 . The axis of the direction is twisted, and the movement in the left and right directions can be allowed, and at the same time, the original position can be restored by elasticity.

The floating fixing portion 92 is formed in a rectangular shape facing the vertical direction, and is integrally provided with a longitudinally protruding strip-shaped bulging portion 921 bulging toward the supporting and fixing portion 91 side at the central portion, and is integrally supported on both sides of the lower end. The elastic holding pieces 621 and 621 constitute the connecting portion 62 of the center contact member 6 on the socket side.

The socket-side center contact member 6 includes a connection portion 62 connected to the plug-side center contact member 3 and a board connection terminal piece 61 connected to the connection board; the connection portion 62 and the board connection terminal piece 61 are connected via a floating spring body 9 and electrical connection.

The connecting portion 62 is provided with a pair of elastic holding pieces 621 and 621 facing each other in the left and right directions. The side center contact members 3 are connected.

Each elastic holding piece 621, 621 is formed in the shape of an elongated plate that is long in the up-down direction, and the lower side edge thereof is integrally supported by the support piece 63 vertically bent from the lower end side edge of the floating fixing portion 92, and is arranged so as to be The support fixing portion 91 and the floating fixing portion 92 face each other in the left-right direction.

Furthermore, each elastic holding piece 621, 621 has a contact point 622 bent inwardly formed at the upper end, and the plug-side center contact member 3 is sandwiched between the contact points 622, 622 facing each other.

In addition, the lower ends of the elastic holding pieces 621 and 621 integrally support a guide piece 64 for preventing falling off, which extends toward the horizontal outer side. Move back and forth, left and right.

As shown in FIG. 7 , the cover base 81 is formed of insulating synthetic resin into a cylindrical shape, and has a contact member accommodating portion 811 opened up and down; the cover movable portion 82 and the socket side are sequentially attached from the top surface side. The housing 7 and the integrated spring body 99 are inserted into the contact member accommodating portion 811 from the bottom side, and the cover movable portion 82 and the cover base 81 are movably joined via the floating spring body 9 .

On the cover base 81 , the thick-walled portion attached to the outer side of the contact member accommodating portion 811 forms a supporting and fixing portion press-fitting portion 812 oriented in the up-down direction; With the press-fit portion 812 , one end of the floating spring body 9 , that is, the supporting and fixing portion 91 , is fixed to the cover base 81 .

Furthermore, in the base portion 81 of the cover body, an avoidance groove 813 is formed, which is in the position of the press-fit portion 812 of the supporting and fixing portion. The inner side has an opening and communicates with the support-fixed portion press-fit portion 812 so that the swing spring portion 93 is not hindered.

Therefore, the lower part of the floating fixing part 92 and the two elastic holding pieces 621 and 621 of the integrated spring body 99 is supported on the cover base 81 via the swinging spring part 93, and at the same time is accommodated in the contact member in a movable state. and the upper part thereof is protruded from the upper end opening of the contact member accommodating part 811 .

Furthermore, a socket-side housing 7 made of a conductive metal material is attached to the outer side of the cover base 81 , and is then fixed to a support body such as an embedded substrate through the socket-side housing 7 .

As shown in FIG. 8, the socket-side housing 7 is provided with: a cylindrical outer peripheral wall portion 71 without a joint, which is integrally formed by drawing a conductive metal material, and covers the outer periphery of the cover base 81; a circular The annular top surface shielding portion 72 is integrally supported by the upper edge of the outer peripheral wall portion 71, covers the top surface peripheral edge of the cover base portion 81, and has an opening portion 72a in the center; The lower edge extends outward.

The socket-side housing 7 is covered from the top surface side of the cover base 81, and the board connecting portion 73 is soldered to the pattern on the embedded board as the support, so that the cover base 81 is fixed to the support. and the socket-side housing 7 is electrically connected (grounded) to the embedded substrate.

As shown in FIG. 9 , the cover movable portion 82 is integrally molded with an insulating synthetic resin material, and includes a flat cylindrical movable body portion 821, a cylindrical protrusion portion 822 protruding from the lower end of the movable body portion 821, and Sliding parts 823, 823 extending out from the lower end of the part 822 to the outside in the left-right direction; The movable body portion 821 and the protruding portion 822 form a square hole-shaped contact member accommodating portion 824 that opens toward the bottom surface side.

In this case, the movable part 82 of the cover body is formed with a fixed part press-in hole 825 which is arranged in parallel with the contact member accommodating part 824 and has an opening on the bottom surface; The upper end of the floating fixing portion 92 protruding from the upper end of the cover base 81 is pressed into the fixing portion press-in hole 825 , while the connecting portion 62 of the socket-side center contact member 6 is accommodated in the contact member accommodating portion 824 , that is, two elastic Hold the upper parts of the fire pieces 621 and 621.

The movable body portion 821 is formed so as to have a minimum diameter based on the outer diameter of the plug-side center contact member, and is inserted into the insertion recess 413 when connecting the plug 11 and the socket 12 .

Furthermore, the movable main body portion 821 is provided with a tapered guide surface portion 821 a whose diameter is reduced toward the upper end at the outer peripheral portion of the upper end, and is provided with a contact member insertion hole 821 b that is open at the upper end surface and communicated with the contact member accommodating portion 824 . Through this contact member insertion hole 821b, the pin-shaped plug-side center contact member 3 is inserted into the cover base 81, and the movable body portion 821 is inserted into the insertion recess 413 while being guided by the plug-side center contact member 3 .

In addition, the opening edge portion of the contact member insertion hole 821b is formed in a tapered shape whose diameter is reduced downward, and guides the plug-side center contact member 3 to the center of the hole.

The protruding portion 822 is formed in a flat cylindrical shape with an outer diameter smaller than that of the movable body portion 821; Between the sliding parts 821 and the sliding parts 823 and 823 , that is, outside the protruding part 822 , an avoidance groove 826 is formed along the circumferential direction, so that the top shielding part 72 can avoid the avoidance groove 826 .

The sliding parts 823, 823 are movably inserted into the guide grooves 814, 814 formed on the top surface side of the cover base 81, and at the same time cover the top surface of the socket-side housing on the upper side of the guide groove 814. The shielding portion 72 is used to restrict its disengagement, so that the cover movable portion 82 can move on the plug-side end face of the cover base 81 .

In the coaxial connector 1 with a floating mechanism configured in this way, when the plug 11 and the socket 12 are connected to each other, the cover movable portion 82 is movably supported by the cover via the floating spring body 9 . The base 81 moves together with the center contact member 6 on the socket side, so even if there is an axial misalignment in either direction (xy direction) with respect to the plug 11 when connecting to each other, the axial misalignment is automatically adjusted, and the axial misalignment is automatically adjusted. The plug-side center contact member 3 is inserted into the contact member insertion hole 821 b of the cover movable portion 82 , and the cover movable portion 82 is inserted into the insertion recess 413 formed at the socket-side end of the housing body 41 .

Therefore, the movable portion 82 of the cover body into which the plug-side center contact member 3 is inserted will be covered by the fixed shielding wall 414 without any gap on the outer side, and the outer peripheral surface will be covered by the fixed shielding wall 414; Since it abuts on the top surface of the socket-side housing 7 , that is, the top surface shielding portion 72 , high high-frequency performance can be ensured.

On the other hand, when the plug 11 and the socket 12 are connected, as shown in FIG. 10( a ), when there is no displacement in the front and rear, as shown in FIG. 10( b ), if there is a If the displacement in the front-rear direction is avoided, the movable portion 82 of the cover body is guided by the plug-side center contact member 3 so that the housing main body of the plug 11 4. When the movable part 82 of the cover body tries to be fitted with each other, the elastic expansion and contraction part 931 of the swing spring part 93 will be deflected and contracted back and forth to allow the movable part of the cover body 82 and the contact part of the center contact member 6 on the socket side to be relative to the cover body The base 81 moves back and forth to connect the plug-side center contact member 3 and the socket-side center contact member 6 .

At this time, the movable housing 42 of the plug-side housing 4 and the socket-side housing 7 are axially displaced from each other in the front-rear left-right direction (xy-axis direction). As shown in FIG. 10( b ), the contact is made in a swung state, so that the plug-side housing and the socket-side housing are in a stable connection state.

On the other hand, even in the floating state, since the outer peripheral surface of the movable cover portion 82 is covered by the fixed shielding wall 414, the shielding performance is maintained.

In addition, when the plug 11 is disengaged, the movable portion 82 of the cover body returns to the center position on the base portion 81 of the cover body in conjunction with the deformation of the swinging spring portion 93 by the elastic recovery of the elastically stretched portion 931 that is deflected. .

Furthermore, as shown in FIG. 11( a ), when there is no axial displacement in the left-right direction, as shown in FIG. 11( b ), if the axial displacement occurs in the left-right direction, the movable portion 82 of the cover body will Guided by the plug-side center contact member 3, the housing body 4 of the plug 11 and the cover movable portion 82 try to engage with each other, and the elastic torsion portions 932, 933, 935 of the swing spring portion 93 are twisted around the front-rear axis to allow The cover movable portion 82 and the connecting portion 62 of the receptacle side center contact member 6 move left and right relative to the cover base 81 to connect the plug side center contact member 3 and the receptacle side center contact member 6 .

At this time, the movable housing 42 of the plug-side housing 4 and the receptacle-side housing 7 are axially displaced from each other in the front-rear left-right direction (xy-axis direction). As shown in FIG. 11( b ), each elastic contact piece 423 is in contact with each other in a state of swinging, so that the plug-side housing 4 and the socket-side housing 7 are in a stable connection state.

On the other hand, even in the floating state, since the outer peripheral surface of the movable portion 82 of the cover body is covered by the fixed shielding wall 414, the shielding performance is maintained.

In addition, when the plug 11 is disengaged, the movable portion 82 of the cover body returns to the center position on the base portion 81 of the cover body in conjunction with the deformation of the swinging spring portion 93 by the elastic recovery of the elastically stretched portion 931 that is deflected. .

In this way, according to the coaxial connector 1 with the floating mechanism of the present invention, even when the movable part of the cover made of resin is reduced in size, the movable part of the cover can be inserted into the outer shell of the plug by inserting the movable part of the cover. The recessed portion 413 for insertion is open on the end face of the main body on the socket side, so that the outer side of the movable portion of the cover is always covered by the fixed shielding wall without gaps. It is also difficult to generate an air layer between, and the deterioration of the impedance matching can be suppressed.

Furthermore, for the coaxial connector with the floating mechanism here, for the radial direction (xy-axis direction), that is, the dislocation in the front, rear, left and right directions, the elastic expansion and contraction portion 931 allows the dislocation in the front and rear directions, and the elastic torsion portions 932 and 933 allow the dislocation in the front and rear directions. , 935 compound allows the misalignment in the left and right directions, so it can float in any direction.

Further, the socket is integrally supported by the floating fixing portion 92 by using the integral spring body 99 The connecting portion 62 of the side center contact member 6 moves the center position of the socket side center contact member 6 along with the floating action to follow the center position of the plug side center contact member 3, so that the misalignment of the center axis in the connector can be prevented. Furthermore, since the movable part 82 of the cover will move horizontally relative to the base 81 of the cover, the fixed shielding wall 414 will not be separated from the top shielding part 72, and high high frequency performance and shielding performance can be maintained.

Moreover, in the above-mentioned embodiment, the support body supporting the cover is described by taking the embedded substrate built into the electronic component as an example, but the support body is not limited to this; for example, the electronic device casing is used as the support body It can also be connected to a coaxial cable, and the coaxial cable can be used as a support.

Furthermore, the coaxial connector 1 with a floating mechanism of the present invention can also be applied to a multi-connected coaxial connector in which a plurality of housing movable parts 82 are movably connected to the housing base 81 .

3: Center contact member on the plug side

5: Plug side insulator

41: shell body

413: Recess for insertion

414: Fixed shielding wall

42: Movable housing

423: elastic contact sheet

423a: Contact part

61: Board connection terminal piece

71: Outer peripheral wall

72: Top shield

81: Cover body base

82: Cover movable part

91: Support fixed part

92: Floating fixed part

93: Swing spring part

Claims (3)

A coaxial connector with a floating mechanism, comprising a plug and a socket connected to each other; The plug includes a plug-side center contact member disposed in the center, a plug-side shell disposed outside the plug-side center contact member, and a plug-side insulator sandwiched between the plug-side center contact member and the plug-side shell; The socket includes a socket-side center contact member arranged in the center, a cover base fixed to an embedded substrate, an electronic device case, or a coaxial cable, and a plug-side end surface of the cover base that can contact the socket-side center member. The movable part of the cover body moving in the radial direction together, and the socket-side shell covering the outer side of the base part of the cover body; In a coaxial connector with a floating mechanism for connecting the plug-side center contact member and the socket-side center contact member, while connecting the plug-side shell and the socket-side shell, The socket-side housing has an outer peripheral wall portion covering the outer periphery of the cover base without joints, and an annular top surface shielding portion integrally supported by the upper edge of the outer peripheral wall portion; The plug-side housing includes a housing body that holds the plug-side center contact member and the plug-side insulator, and a movable housing that is swingably supported by the housing body and fitted to the socket-side housing; The housing main body is provided with an insertion recess opening on the end face of the socket side and into which the movable part of the cover is inserted; The thick-walled portion of the casing main body in which the insertion recess is formed constitutes a fixed shielding wall, and the movable casing is disposed outside the fixed shielding wall. A coaxial connector with a floating mechanism as claimed in claim 1, wherein, The socket is provided with a spring body for floating, one end of the spring body for floating is fixed on the base of the cover body, and the other end is fixed on the movable part of the cover body; The floating spring body includes a support and fixed part fixed to the base of the cover body, a floating fixed part fixed to the movable part of the cover body, and a swing spring part that connects the support and fixed part and the floating fixed part and can be elastically deformed; The cover movable portion is movably supported on the cover base via the floating spring body. A coaxial connector with a floating mechanism as claimed in claim 2, wherein, The socket-side center contact member includes a contact portion that moves together with the movable portion of the cover, and a board connection terminal piece connected to the embedded board, and the contact portion is integrally supported by the floating fixing portion, allowing the board to be integrally supported. The connection terminal piece is integrally supported by the supporting and fixing portion, and the socket-side center contact member is integrated with the floating spring body.

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