CN107959146A

CN107959146A - Coaxial connector

Info

Publication number: CN107959146A
Application number: CN201710934086.9A
Authority: CN
Inventors: 吉村正雄
Original assignee: JST Mfg Co Ltd
Current assignee: JST Mfg Co Ltd
Priority date: 2016-10-14
Filing date: 2017-10-10
Publication date: 2018-04-24
Anticipated expiration: 2037-10-10
Also published as: CN107959146B; TWI669867B; JP2018063892A; TW201820726A

Abstract

Coaxial connector (10) possesses shell (1) and bent tubular shell (2).Coaxial connector possesses center contact (3) and one group of discoideus dielectric (4a, 4b).The one end side of shell has accommodating chamber (11), which is inserted into for coaxial plug (20).Bent tubular shell is fixed substantially in parallel in the inside of shell and a face (91p) of printed base plate (9p), and opposed with a face of printed base plate to bending in the other end side axle of shell.Center contact is coaxially configured in the inside of bent tubular shell along the axis center of bent tubular shell with bent tubular shell.One group of discoideus dielectric is accommodated in the inside of bent tubular shell, and center contact is supported in central part.Bent tubular shell discretely configures one group of discoideus dielectric (4a, 4b) in the axial direction of center contact, and the small air layer of dielectric constant (As) is provided between one group of discoideus dielectric.Thus, there is provided the coaxial connector of miniaturization.

Description

Coaxial connector

Technical field

The present invention relates to coaxial connector.More particularly to the structure of following coaxial connector：Printing can be installed on Substrate, and the other side side coaxial connector for being formed in the end of coaxial cable can load and unload.

Background technology

In general, in ETC (Electronic Toll Collection System：E-payment system) vehicle carried device etc. Inside is configured with printed base plate.For example circular coaxial connector is installed in the printed base plate.On the coaxial connector, energy Enough handling are formed in the other side side coaxial connector of an end of coaxial cable.Day is connected with another end of coaxial cable Line.And then by the way that other side side coaxial connector is connected to coaxial connector, so as to which high-frequency signal is received from antenna Printed base plate, or antenna can be sent to from printed base plate by high-frequency signal.

In general, it is connected with the circular other side that coaxial cable extends to peripheral direction in such circular coaxial connector Side coaxial connector.The circular coaxial connector be other side side coaxial connector can relative to printed base plate a face from Right angle setting type connector, the coaxial connector of so-called upper end insert type of vertical direction handling.

On the other hand, also developing fixed square other side side coaxial connector in the axial direction of coaxial cable being capable of phase For a face of printed base plate load and unload from horizontal direction be horizontally mounted type connector, the coaxial of so-called side insert type connects Connect device.

In the coaxial connector of such side insert type, in the past, a kind of coaxial connector is developed, it utilizes L-shaped Dielectric substance will be integrated around the center contact of L-shaped, and splits shell using a pair of L-shaped tubular and pressed from both sides from peripheral direction Hold the L-shaped dielectric substance (for example, referring to patent document 1).

In addition, in the coaxial connector of such side insert type, in the past, a kind of coaxial connector is developed, it is in L The center contact of L-shaped is installed in the central part of shape dielectric substance, and utilizes a pair of flanged L-shaped tubular segmentation shell The L-shaped dielectric substance is clamped from peripheral direction (for example, referring to patent document 2).

Prior art literature

Patent document

Patent document 1：Japanese Unexamined Patent Publication 2002-270311 publications

Patent document 2：No. 5116245 specifications of U.S. Patent No.

In coaxial connector disclosed in patent document 1 or 2, the L words that are made of conductive thin footpath rod-like members The L-shaped dielectric substance that the center contact of shape is more than air by dielectric constant continuously covers terminal part from intermediate portion. In such structure, there are it is such the problem of：It is difficult with the signal of small-sized coaxial connector transmission high frequency.In view of from now on It can also require that the signal using smaller coaxial connector transmission high frequency.And then, it may be said that above is the problem of the present invention.

The content of the invention

The present invention be exactly in view of such problem and complete, it is intended that by making air layer between curved The center contact that cylindric bent tubular shell surrounds, so as to provide the coaxial connector of smallerization.

Means for solving the problems

Present inventor considered that the shell of the curved tube shape of inside on being arranged at the shell set on printed base plate, leads to Cross and one group of discoideus dielectric is discretely configured in the axial direction of shell, which is accommodated in the shell Inside, and center contact is supported in central part, so as to make air layer between the center contact surrounded by bent tubular shell, base In this, following new coaxial connector has been invented.

(1) coaxial connector of the invention can be installed on a face of printed base plate, can releasably be connected pair Square side coaxial connector, other side side coaxial connector are formed in the end of coaxial cable, wherein, the coaxially connected utensil It is standby：The shell of rectangular-shape, portion side has accommodating chamber at one end for it, and a face opening of the accommodating chamber can be for the other side Side coaxial connector insertion；The bent tubular shell of cylinder tubulose, it is in the inside of the shell and a face of the printed base plate Fix, and faced in the other end side axle of the shell with one of the printed base plate to bending to substantially in parallel Put；Center contact, it is coaxially arranged at the inside of the shell along the center of the axis of the bent tubular shell with the shell；With one group of circle Plate-like dielectric, it is accommodated in the inside of the bent tubular shell, and supports the center contact, the curved tube in central part Shape shell is discretely configured with discoideus dielectric described in one group in the axial direction of the center contact, in discoideus electricity described in one group Air layer is provided between medium.

(2) preferably, the center contact is integrally molded with discoideus dielectric described in one group, the song tubular shell Discoideus dielectric, semi-circular cylindrical a component described in surrounding one group from peripheral direction is cut shell and is formed.

(3) preferably, the ora terminalis for the periphery for splitting shell described in one group is engaged with each other to form by laser welding State bent tubular shell.

(4) preferably, in the inner wall of the accommodating chamber of the shell, formed with the other side side can will be arranged at The locking latch locking groove of the securing rod of coaxial connector.

(5) preferably, the shell is also equipped with a pair of of reinforcement wing plate, which strengthens wing plate and be fixed in the shell Two sides and bottom surface can be solder-bonded on a face of the printed base plate.

Invention effect

Due to the present invention coaxial connector possess bent tubular shell, the song tubular shell in the axial direction of center contact discretely One group of discoideus dielectric is configured with, and air layer is provided between one group of discoideus dielectric, therefore, it is possible to reduce shell Outside diameter, additionally it is possible to minimize coaxial connector.

Brief description of the drawings

Fig. 1 is the stereogram of the structure for the coaxial connector for showing an embodiment of the invention, shows and coaxially connects Connect the state that device is installed on a face of printed base plate.

Fig. 2 is the stereogram of the structure for the coaxial connector for showing the embodiment, is mounted on coaxial connector State on a face of printed base plate, shows the appearance from side opposite with Fig. 1.

Fig. 3 is the stereo decomposing installation diagram of the structure for the coaxial connector for showing the embodiment.

Fig. 4 A are the top views for the structure for showing the shell that the coaxial connector of the embodiment possesses.

Fig. 4 B are the front views for the structure for showing the shell that the coaxial connector of the embodiment possesses.

Fig. 4 C are the rearviews for the structure for showing the shell that the coaxial connector of the embodiment possesses.

Fig. 5 A are the structure for the shell that the coaxial connector of the embodiment possesses, and are to show the back side, upper table The stereogram of the appearance of face and left surface.

Fig. 5 B are the structure for the shell that the coaxial connector of the embodiment possesses, and are to show the back side, following table The stereogram of the appearance of face and right flank.

Fig. 5 C are the structure for the shell that the coaxial connector of the embodiment possesses, and are to show the back side and right side The stereogram of the appearance in face.

Fig. 6 is by the stereogram of the mian part amplification of the coaxial connector of the embodiment, shows and is cut using a component Shell is by with the state before one group of discoideus dielectric center contact encirclement.

Fig. 7 is the front view for the structure for showing the center contact that the coaxial connector of the embodiment possesses, and is shown With one group of discoideus dielectric together integrally moulded state.

Fig. 8 is the stereogram for the structure for showing the center contact that the coaxial connector of the embodiment possesses.

Fig. 9 A are the longitudinal sections of the structure for the coaxial connector for showing the embodiment, show that connection other side side is same State before mandrel connector.

Fig. 9 B are the longitudinal sections of the structure for the coaxial connector for showing the embodiment, show and are connected to other side side The state of coaxial connector.

Figure 10 is the stereogram of the structure for the coaxial connector for showing the embodiment, shows to be connected to using longitudinal section The state of other side side coaxial connector.

Label declaration

1 shell

2 bent tubular shells

3 center contacts

Mono- group of discoideus dielectric of 4a, 4b

9p printed base plates

10 coaxial connectors

11 accommodating chambers

20 coaxial plugs (other side side coaxial connector)

One face of 91p printed base plates

As air layers

Cb coaxial cables

Embodiment

In the following, the mode for implementing the present invention is illustrated referring to the drawings.

[structure of coaxial connector]

First, the structure of the coaxial connector of an embodiment of the invention is illustrated.

Fig. 1 is the stereogram of the structure for the coaxial connector for showing an embodiment of the invention, and showing will be coaxial Connector is installed on the state on a face of printed base plate.Fig. 2 is the structure for the coaxial connector for showing the embodiment Stereogram, be installed in the state on a face of printed base plate on coaxial connector, show from side opposite with Fig. 1 see The appearance examined.

Fig. 3 is the stereo decomposing installation diagram of the structure for the coaxial connector for showing the embodiment.Fig. 4 A to Fig. 4 C are The figure of the structure for the shell that the coaxial connector of the embodiment possesses is shown, Fig. 4 A are the top views of shell, and Fig. 4 B are outer The front view of shell, Fig. 4 C are the rearviews of shell.

Fig. 5 A to Fig. 5 C are the structures for the shell that the coaxial connector of the embodiment possesses, and Fig. 5 A show shell The stereogram of the appearance at the back side, upper surface and left surface, Fig. 5 B are the appearances for showing the back side of shell, lower surface and right flank Stereogram, Fig. 5 C are the stereograms of the appearance for the back side and right flank for showing shell.

Fig. 6 is by the stereogram of the mian part amplification of the coaxial connector of the embodiment, shows and is cut using a component Shell is by with the state before one group of discoideus dielectric center contact encirclement.Fig. 7 is to show that the coaxial of the embodiment connects The front view of the structure for the center contact that device possesses is connect, is shown and one group of discoideus dielectric together integrally moulded state.

Fig. 8 is the stereogram for the structure for showing the center contact that the coaxial connector of the embodiment possesses.Fig. 9 A, figure 9B is the longitudinal section of the structure for the coaxial connector for showing the embodiment, and Fig. 9 A show that connection other side side is coaxially connected State before device, Fig. 9 B show to be connected to the state of other side side coaxial connector.

(overall structure)

Referring to figs. 1 to Figure 10, the coaxial connector 10 of an embodiment of the invention can be installed on printed base plate 9p A face 91p, can connect and compose in the form of loadable in the end of coaxial cable Cb other side side coaxial connector (under Face, is known as coaxial plug) 20.

Referring to figs. 1 to Figure 10, coaxial connector 10 possesses the shell 1 of rectangular-shape and metal bent tubular shell 2.This Outside, coaxial connector 10 possesses rod-shaped center contact 3 and one group of discoideus dielectric 4a, 4b.

With reference to Fig. 2 or Fig. 5 A~Fig. 5 C and Fig. 9 A, there is accommodating chamber 11 in the one end side of shell 1.Accommodating chamber 11 will be outer Coaxial plug 20, can be inserted into accommodating chamber 11 (with reference to Fig. 9 A, Fig. 9 B) by one rectangular opening in face of shell 1.

With reference to Fig. 1 or Fig. 3 and Fig. 9 A, Fig. 9 B or Figure 10, bent tubular shell 2 is such as lower structure：In the inside of shell 1 and printing A face 91p of substrate 9p is fixed substantially in parallel, and shell 1 the other end side axle to bending to and printed base plate 9p A face 91p it is opposed.More specifically, an end side of bent tubular shell 2 is configured in the accommodating chamber 11 of shell 1, curved tube The pars intermedia of shape shell 2 is fixed through the next door 12w of shell 1, and the other end side of bent tubular shell 2 is configured to：In shell 1 The other end side, the axial bending of bent tubular shell 2 and it is opposed with a face 91p of printed base plate 9p.In embodiments, curved tube Shape shell 2 cuts shell 2a, 2b by a component of semi-circular cylindrical and forms (with reference to Fig. 6).

The inside of bent tubular shell 2 is configured in reference to Fig. 6 or Fig. 9 A, Fig. 9 B and Figure 10, center contact 3.3 edge of center contact The axis center of bent tubular shell 2 and coaxially configured with bent tubular shell 2.

With reference to Fig. 6 or Fig. 7, one group of discoideus dielectric 4a, 4b are accommodated in the inside of bent tubular shell 2.One group discoideus Dielectric 4a, 4b support center contact 3 in each central part.Discoideus dielectric 4a is configured in the base end part of contact terminal 31 Side, discoideus dielectric 4b are configured to：Partly being supported on can be with printed base plate 9p (with reference to Fig. 1 or Fig. 9 A, Fig. 9 B) tin Weld close DIP (dual-inline package) terminal 32 base end part side, be more specifically center contact 3 bending section 3cv. The thickness of discoideus dielectric 4a is more than the thickness of discoideus dielectric 4b.On matching somebody with somebody for such discoideus dielectric 4a, 4b Put and thickness, other configurations and the relation of other thickness can be obtained as needed.In embodiments, center contact 3 and one Group discoideus dielectric 4a, 4b is integrally moulded.

One group is discretely configured with the axial direction of center contact 3 with reference to Fig. 6 or Fig. 9 A, Fig. 9 B and Figure 10, bent tubular shell 2 Discoideus dielectric 4a, 4b.Thus, it is provided with air layer As between one group of discoideus dielectric 4a, 4b of bent tubular shell 2.

Since the coaxial connector 10 of embodiment possesses bent tubular shell 2, axial direction of the song tubular shell 2 in center contact 3 On be discretely configured with one group of discoideus dielectric 4a, 4b, and be provided with air layer between one group of discoideus dielectric 4a, 4b As, therefore, it is possible to reduce the outside diameter of shell, and can minimize coaxial connector.

(structure of shell)

In the following, the structure of the shell 1 of embodiment is illustrated.Referring to figs. 1 to Fig. 5 A~Fig. 5 C, it is preferred that outer Shell 1 is made of insulator, can be molded the synthetic resin with insulating properties to obtain the shell 1 of rectangular-shape.

Referring to figs. 1 to Fig. 5 A~Fig. 5 C, shell 1 has continuous with the another side positioned at 11 opposite side of accommodating chamber and bottom surface Recess 12.Bent tubular shell 2 can be contained in recess 12.In addition, shell 1 have by accommodating chamber 11 and recess 12 separate every Wall 12w (with reference to Fig. 4 B or Fig. 5 C).Press-in hole 12h next doors 12w openings (with reference to Fig. 4 C or Fig. 5 C).

With reference to Fig. 4 C or Fig. 5 C, bent tubular shell 2 can be pressed into press-in hole 12h from recess 12 towards accommodating chamber 11 (with reference to Fig. 9 A).Thereby, it is possible to bent tubular shell 2 is fixed on shell 1.

With reference to Fig. 4 C or Fig. 5 C, in shell 1, from the inner wall of accommodating chamber 11 formed with a pair of of ridge 111,111.A pair is prominent Bar 111,111 can be chimeric with the square groove (not shown) being arranged on the shell 21 for forming coaxial plug 20 same to guide The insertion of axis plug 20 (with reference to Fig. 9 A, Fig. 9 B).A pair of of ridge 111,111 is sent out as key that coaxial plug 20 is mistakenly inserted is prevented The effect of waving.

With reference to Fig. 9 B or Figure 10, shell 1 accommodating chamber 11 inner wall formed with latch locking groove 11r.It will can be arranged at same The securing rod 21r of axis plug 20 is engaging in latch locking groove 11r.

Referring to figs. 1 to Fig. 3, shell 1 is also equipped with the reinforcement wing plate 5,5 of a pair of of rectangle.In addition, with reference to Fig. 4 A, in shell 1 Two sides are formed with a pair of of square groove 11d, 11d toward each other.By will strengthen wing plate 5 be pressed into a pair of of square groove 11d, In 11d, so as to which a pair of of reinforcement wing plate 5,5 to be fixed on to the two sides of shell 1.By the way that the bottom surface soldering of wing plate 5 will be strengthened A face 91p of printed base plate 9p is engaged in, so as to which shell 1 is fixed on printed base plate 9p (with reference to Fig. 1 or Fig. 2).

(structure of bent tubular shell and segmentation shell)

In the following, the structure of the bent tubular shell 2 and a pair of of segmentation shell 2a, 2b to embodiment illustrates.It is excellent with reference to Fig. 6 Choosing, segmentation shell 2a, 2b be made of conductive metallic object, conductive metallic object can be molded and The component for obtaining semi-circular cylindrical cuts shell 2a, 2b.

With reference to Fig. 6, the assembling of bent tubular shell 2 is preferably, is touched by the center with one group of discoideus dielectric 4a, 4b In the state of first 3 are contained in a segmentation shell 2a, are surrounded using another segmentation shell 2b and carry one group of discoideus dielectric 4a, 4b Center contact 3.The ora terminalis that one component is cut to the periphery of shell 2a, 2b by laser welding is engaged with each other, so as to obtain nothing The bent tubular shell 2 of the tubular in gap.And then the signal of high frequency is easily transmitted to center contact 3.Contact terminal 31 is configured in The opening center of one end of bent tubular shell 2, DIP terminals 32 are configured in the opening center of the other end of bent tubular shell 2.

With reference to Fig. 9 A, Fig. 9 B or Figure 10, it is preferred that the other end (edge) of bent tubular shell 2, which is soldered, is engaged in print Bent tubular shell 2, can be electrically connected by a face 91p of brush substrate 9p with being formed at the grounding pattern (not shown) of printed base plate 9p Connect.

(structure of center contact)

In the following, the structure of the center contact 3 of embodiment is illustrated.With reference to Fig. 6 to Fig. 8, it is preferred that touch at center First 3 are made of conductive metallic rod, can be bent conductive metallic rod and be obtained the other end relative to one The curved center contact 3 in end.Preferably, center contact 3 is made of copper alloy, but is not limited to copper alloy.

With reference to Fig. 6 to Fig. 8, there is contact terminal 31 in the one end of center contact 3, there is DIP terminals in the other end 32.Contact terminal 31 can be connected (with reference to Fig. 9 A, Fig. 9 B or Figure 10) with being configured at the center contact 23 of coaxial plug 20.

Through hole Ht is connected to reference to Fig. 9 A, Fig. 9 B or Figure 10, DIP terminal 32, which is formed at printed base plate 9p. DIP terminals 32 can be installed on printed base plate 9p via through hole, but can also be rear another with bent tubular shell 2 in through hole Ht is inserted into One end together carries out surface installation.

(structure of other side side coaxial connector)

In the following, the structure of the coaxial plug 20 of embodiment is illustrated.It is coaxial to insert with reference to Fig. 9 A, Fig. 9 B or Figure 10 First 20 are formed in the end of coaxial cable Cb.Coaxial cable Cb is made of such as lower part：Circular center conductor Wc, it is by single line Or composition of twisting thread；The dielectric Di such as fluororesin, it is surrounded around center conductor Wc；The external conductor Wb such as litzendraht wire, it is surrounded Around dielectric Di；With insulating sheath Wi, it coats protection external conductor Wb.

With reference to Fig. 9 A, Fig. 9 B or Figure 10, coaxial plug 20 possesses the shell 21 of rectangular-shape and metal cylindric Shell 22.In addition, coaxial plug 20 possesses center contact 23 and one group of discoideus dielectric 24a, 24b.

Shell 21 is supported in reference to Fig. 9 A, Fig. 9 B or Figure 10, the centre of shell 22.The one end of shell 22 and external conductor Wb Connection.The other end of shell 22 can be connected with shell 2.The one end of center contact 23 and center conductor Wc wiring.Center contact 23 the other end can be connected with center contact 3.One group of dielectric 24a, 24b are in a manner of center contact 23 and shell 22 are coaxial It is configured in the inside of shell 22.

[effect of coaxial connector]

In the following, the effect and effect to the coaxial connector 10 of embodiment illustrate.Referring to figs. 1 to Figure 10, due to Coaxial connector 10 possesses bent tubular shell 2, which discretely configures one group of discoideus electricity in the axial direction of center contact 3 Medium 4a, 4b, air layer As is provided between one group of discoideus dielectric 4a, 4b, therefore, it is possible to reduce the outside diameter of shell, also Coaxial connector can be minimized.

In addition, with reference to Fig. 9 A, Fig. 9 B or Figure 10, due to by the other end (edge) soldering of shell 2 in printed base plate A face 91p of 9p, therefore, the coaxial connector 10 of embodiment can suppress the mismatch of the impedance at terminal part.

Also, with reference to Fig. 6 or Fig. 9 A, Fig. 9 B and Figure 10, a component is cut to the end of the periphery of shell 2a, 2b by laser welding Edge is engaged with each other, so as to obtain gapless bent tubular shell 2.Also, the signal of high frequency is easily transmitted to center contact 3。

Claims

1. a kind of coaxial connector, it can be installed on a face of printed base plate, and it is same can releasably to connect other side side Mandrel connector, other side side coaxial connector are formed in the end of coaxial cable, wherein,

The coaxial connector possesses：

The shell of rectangular-shape, portion side has accommodating chamber at one end for it, and a face opening of the accommodating chamber can be for the other side Side coaxial connector insertion；

The bent tubular shell of cylinder tubulose, it is solid substantially in parallel in the inside of the shell and a face of the printed base plate It is fixed and opposed with a face of the printed base plate to bending in the other end side axle of the shell；

Center contact, it is coaxially arranged at the inside of the shell along the center of the axis of the bent tubular shell with the shell；With one group Discoideus dielectric, it is accommodated in the inside of the bent tubular shell, and supports the center contact in central part,

The song tubular shell is discretely configured with discoideus dielectric described in one group in the axial direction of the center contact, at one group Air layer is provided between the discoideus dielectric.

2. coaxial connector according to claim 1, wherein,

The center contact is integrally molded with discoideus dielectric described in one group,

The song tubular shell discoideus dielectric, semi-circular cylindrical component as described in surrounding one group from peripheral direction cuts shell structure Into.

3. coaxial connector according to claim 2, wherein,

The ora terminalis for the periphery for splitting shell described in one group is engaged with each other to form the bent tubular shell by laser welding.

4. the coaxial connector according to any one of claims 1 to 3, wherein,

In the inner wall of the accommodating chamber of the shell, formed with the locking that can will be arranged at other side side coaxial connector The locking latch locking groove of bar.

5. the coaxial connector according to any one of claims 1 to 3, wherein,

The shell is also equipped with a pair of of reinforcement wing plate, and a pair of reinforcement wing plate is fixed in the two sides of the shell and can Bottom surface is solder-bonded on a face of the printed base plate.

6. coaxial connector according to claim 4, wherein,