CN207490239U

CN207490239U - High tolerance plate is to plate RF coaxial contactor

Info

Publication number: CN207490239U
Application number: CN201721457474.4U
Authority: CN
Inventors: 沈细荣; 黄克猛; 杨玉文; 陈晓飞
Original assignee: Suzhou Wutong Antenna Co Ltd
Current assignee: Jiangsu Wutong Wulian Technology Co., Ltd.
Priority date: 2017-11-03
Filing date: 2017-11-03
Publication date: 2018-06-12
Anticipated expiration: 2027-11-03

Abstract

The utility model discloses a kind of high tolerance plate to plate RF coaxial contactor, including two pieces of PCB and a RF coaxial contactor, it is characterised in that：The RF coaxial contactor forms an individual construction by metab, dielectric body and five metallic elastic needles.SMB, SMP two-piece type or three-piece construction have been abandoned, use cost can have effectively been reduced and using complexity, based on helical spring structure, be contacted with pressure, it is ensured that signal transmission, it is ensured that high axial tolerance and high radial tolerance.

Description

High tolerance plate is to plate RF coaxial contactor

Technical field

The utility model is related to a kind of axial contact device more particularly to a kind of high tolerance plate to plate RF coaxial contactor.

Background technology

With communication technology high speed development, the integration degree of module is higher and higher, and plate exists to plate radio frequency (RF) coaxial connector Application in the interconnection of wireless system module is more and more extensive.Plate is mainly used between printed circuit board plate coaxial connector Radio-frequency information connects and transmission, in actual application via use a connector switch to use multiple connectors or Array uses connector, however PCB is made in actual production process, surface mounting technology, assembling and design tolerance are caused between plate Axial direction, radial direction and angular error between component, therefore plate radiofrequency signal connection and transmission between plate are highly desirable to high tolerance Connector carry out blindmate application.

Industry is broadly divided into two classes for the technology that plate interconnects plate at present, and the first kind is the connector based on certainly slotting formula, Often some has SMB types and MCX types, and the plate of this type is made of plate interconnection scheme two sockets, and a contact pin socket claims For male connector, a receptacle electrical connector is known as the connection of female, male connector and female between interconnection mode realization plate and plate staggeredly, this The inserting mode of kind structure is almost not allow for axially and radially tolerance.Second class plate is made of plate interconnection technique three parts, Two sockets and an adapter have allowed axial tolerance and radial tolerance by adapter, and this kind of interconnection technique is common Connector has MBX types, BMP types and SMP types, wherein, the application of SMP type connectors is wide, it is by two sockets and one Adapter forms, and two of which socket welds on circuit boards, and transmission of the plate to the electric signal of plate is realized by adapter.More than Two class plates are respectively two-part construction, three-piece construction to the connector construction used in plate interconnection technique, complicated.

Invention content

The utility model aim is to provide a kind of high tolerance plate to plate RF coaxial contactor, simple in structure while real The high axial tolerance of product and high radial tolerance are showed, on the basis of ensuring to be connected firmly, it is ensured that excellent electrical properties so that high Frequency stable signal transmission.

In order to achieve the above objectives, the technical solution adopted in the utility model is：A kind of high tolerance plate connects plate RF coaxial Tentaculum, including two pieces of PCB and a RF coaxial contactor, the RF coaxial contactor by metab, dielectric body and Five metallic elastic needles form an individual construction.

In above-mentioned technical proposal, metab surface setting there are five through hole, it is described through pore size distribution in X-type, It is ground connection through hole on described four angles of metab, is signal through hole among the metab.

In above-mentioned technical proposal, the metallic elastic needle including four piece-root graftings elastic needle, a signal elastic needle, four institutes It states ground connection elastic needle to be fixed in the ground connection through hole by structure design and interference design, the dielectric body is by falling Thorn design designs fixing card on the metab with interference, and the signal elastic needle is fixed in the dielectric body.

In above-mentioned technical proposal, the metallic elastic needle is made of metal base, helical spring, metal contact shell, described It is hollow inside metal base, the helical spring contacts shell bottom end with the metal and is fixed on inside the metal base, institute It is spherical shape to state metal contact beak end.

In above-mentioned technical proposal, two pieces of PCB are respectively the first PCB, the 2nd PCB, and the metallic elastic needle bottom end leads to It crosses welding or surface mounting technology is weldingly fixed on the first PCB, first PCB surface is designed with 50 Europe microstrip lines.

In above-mentioned technical proposal, contacted on the 2nd PCB with metal shell corresponding position be provided with circular signal tactile disk and Circlewise tactile disk is designed with 50 Europe microstrip lines in second PCB surface.

Since above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：

1. RF coaxial contactor is made of metab, dielectric body and five metallic elastic needles in the utility model One individual construction has abandoned SMB, SMP two-piece type or three-piece construction, can effectively reduce use cost and using complexity.

2. metallic elastic needle is integrally formed structure by metal base, helical spring, metal contact shell, spring design is using spiral shell Spring structure is revolved, design ensures its impulse stroke in the range of the flexible deformation of spring, and helical spring is fixed on metal base And in metal contact shell, metal contact shell is strapped in by structure design in metal base, it is realized by helical spring structure In axial flexible deformation, reach the high tolerance of axial direction of RF coaxial contactor.

3. the metal contact shell of RF coaxial contactor contacts corresponding signal tactile disk and ground on the 2nd PCB by helical spring Tactile disk forms pressure contact, because being designed without fixing metallic elastic needle using structure, therefore RF coaxial contactor can be Radially realize high tolerance.

Description of the drawings

Fig. 1 is the high tolerance plate of the utility model to plate RF coaxial contactor and PCB docking structure schematic diagrames；

Fig. 2 is the schematic diagram of the utility model PCB；

Fig. 3 is the high tolerance plate of the utility model to plate RF coaxial contactor schematic diagram；

Fig. 4 is the utility model metallic elastic needle construction schematic diagram；

Fig. 5 is the high tolerance plate of the utility model to plate RF coaxial contactor schematic diagram；

Wherein：01st, the first PCB；02nd, RF coaxial contactor；021st, metab；022nd, dielectric body；023rd, believe Number elastic needle；024th, it is grounded elastic needle；022a, metal contact shell；022b, helical spring；022c, metal base；03rd, second PCB；031st, signal tactile disk；032nd, tactile disk；033rd, 50 Europe microstrip line.

Specific embodiment

The utility model is further described with reference to the accompanying drawings and embodiments：

Embodiment one：Referring to shown in Fig. 1~5, a kind of high tolerance plate to plate RF coaxial contactor, including two pieces of PCB and One RF coaxial contactor 02, the RF coaxial contactor 02 is by metab 021, dielectric body 022 and five metals Elastic needle forms an individual construction, has abandoned SMB, SMP two-piece type or three-piece construction, can effectively reduce use cost and make With complexity, the metab 021 uses copper as base material.

As shown in figure 4, the metallic elastic needle contacts shell 022a structures by metal base 022c, helical spring 022b, metal Into the metal base 022c inside is hollow, and the helical spring 022b contacts shell 022a bottom ends with the metal and is fixed on Inside the metal base 022c, the metal base 022c ports utilize bottling technique, make the helical spring 022b and institute It states metal contact shell 022a and is fixed on the metal and sends and one is formed in 022c, the metal contact shell 022a tips are spherical surface Shape, spring design ensure its impulse stroke in the regime of elastic deformation of spring using helical spring 022b structures, design, spiral shell Rotation spring 022b is fixed in metal base 022c and metal contact shell 022a, and metal contact shell 022a is fettered by structure design In metal base 022c, its flexible deformation in axial direction is realized by helical spring 022b structures, reaches RF coaxial contact The high tolerance of axial direction of device 02.

As shown in figure 3, there are five through holes for 021 surface of the metab setting, the through hole is in X-type, positioned at institute It is ground connection through hole to state on 021 4 angles of metab, is signal through hole among the metab 021.

As shown in figure 5, the metallic elastic needle including four piece-root graftings 024, signal elastic needle 023 of elastic needle, four The ground connection elastic needle 024 is fixed on by structure design and interference design in the ground connection through hole, with the metab 021, which combines closely, to form integral structure, four ground connection elastic needles 024 after installation is complete four needles it is contour, become axial contact Elastic ground structure.The dielectric body 022 designs fixing card in the metab 021 by hangnail design and interference On, the signal elastic needle 023 is fixed in the dielectric body 022, and the dielectric body 022 uses Teflon as base Material makes signal elastic needle 023 be tightly formed one with metab 021 by dielectric body 022, meanwhile, dielectric body 022 so that metab 021 is dielectrically separated from signal elastic needle 023.

As shown in figs. 1 and 2, two pieces of PCB are respectively the first PCB01, the 2nd PCB 03, the metallic elastic needle bottom end It is weldingly fixed on the first PCB01 by welding or surface mounting technology, the first PCB01 surfaces are designed with 50 Europe microstrip lines Shell 022a corresponding positions are contacted with metal on 033, the 2nd PCB 03 and are provided with circular signal tactile disk 031 and circlewise tactile disk 032,50 Europe microstrip lines 033, the metal contact shell 022a of RF coaxial contactor 02 are designed on 03 surfaces of the 2nd PCB Corresponding signal tactile disk 031 on 2nd PCB 03 is contacted by helical spring 022b and forms pressure contact with ground tactile disk 032, because setting Meter does not have to fix metallic elastic needle using structure, then add the cooperation of helical spring 022b, flexible contact is formed, so that it is guaranteed that plate When inclination has been offset between plate, RF coaxial contactor 02 can radially realize high tolerance, in the first PCB01, second 03 surfaces of PCB are designed with 50 Europe microstrip lines 033 connection radio frequency module.

This conceptual design is optimized by HFSS design of Simulation, it can be ensured that 02 best performance of RF coaxial contactor, Realization standing wave is 1.2 hereinafter, axial tolerance reaches 2.00mm, and radial tolerance is in 1.5mm.

Above-described embodiment is only the technical concepts and features for illustrating the utility model, and its object is to allow be familiar with technique Personage can understand the content of the utility model and implement according to this, can not the scope of protection of the utility model be limited with this. It is all according to the spirit of the present invention substantially equivalent change or modification for being made, should all cover the scope of protection of the utility model it It is interior.

Claims

1. a kind of high tolerance plate exists to plate RF coaxial contactor including two pieces of PCB and a RF coaxial contactor, feature In：The RF coaxial contactor forms an individual construction by metab, dielectric body and five metallic elastic needles.

2. high tolerance plate according to claim 1 is to plate RF coaxial contactor, it is characterised in that：The metallic elastic needle Be made of metal base, helical spring, metal contact shell, be inside the metal base it is hollow, the helical spring with it is described Metal contact shell bottom end is fixed on inside the metal base, and the metal contact beak end is spherical shape.

3. high tolerance plate according to claim 1 is to plate RF coaxial contactor, it is characterised in that：The metab table There are five through holes for face setting, described to run through pore size distribution in X-type, are that ground connection is run through on described four angles of metab Hole is signal through hole among the metab.

4. for the high tolerance plate according to Claims 2 or 3 to plate RF coaxial contactor, the metallic elastic needle includes four Elastic needle, a signal elastic needle are grounded, four ground connection elastic needles are fixed on described by structure design and interference design It is grounded in through hole, the dielectric body designs fixing card on the metab by hangnail design and interference, described Signal elastic needle is fixed in the dielectric body.

5. high tolerance plate according to claim 1 is to plate RF coaxial contactor, it is characterised in that：Two pieces the PCB points Not Wei the first PCB, the 2nd PCB, the metallic elastic needle bottom end by welding or surface mounting technology be weldingly fixed on the first PCB On, first PCB surface is designed with 50 Europe microstrip lines.

6. high tolerance plate according to claim 5 is to plate RF coaxial contactor, it is characterised in that：On 2nd PCB Shell corresponding position is contacted with metal and is provided with circular signal tactile disk and circlewise tactile disk, 50 are designed in second PCB surface Europe microstrip line.