An adaptive inter-board solderless radio frequency connector

Abstract

The application discloses a self-adaptive inter-board welding-free radio frequency connector and relates to the technical field of radio frequency connectors.The self-adaptive inter-board welding-free radio frequency connector comprises a first elastic conductor, an insulating medium, a shell and a second elastic conductor.The first elastic conductor is composed of an inner conductor and a built-in elastic piece, and axial floating compensation of the inner conductor is realized.The insulating medium is sleeved on the outer side of the first elastic conductor through a stepped structure and is kept in clearance fit.The shell fixes the insulating medium through a stop table, and the inner wall of the shell is provided with a conical groove.The second elastic conductor is an outer conductor with a two-lavered petal clasp spring structure, is sleeved on both ends of the insulating medium, and is in nested fit with the conical groove through a ring-shaped protrusion, and axial floating is realized by the elastic clasp spring structure.The self-adaptive inter-board welding-free radio frequency connector avoids high-temperature thermal stress and panel deformation problems caused by traditional welding processes, and the connector can realize inter-board welding-free and self-adaptive floating connection.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of radio frequency connectors, and particularly relates to a self-adaptive inter-board welding-free radio frequency connector. BACKGROUND

[0002] Under the impetus of information equipment technology, users have higher and higher requirements for system miniaturization and integration. As an important technology for connector miniaturization and integration in recent years, inter-board interconnection technology is increasingly used in fields such as aerospace, aviation and communication.

[0003] The existing conventional direct insertion push-in type and blind insertion push-in type micro inter-board radio frequency coaxial connectors are widely used in inter-board interconnection technology, and the conventional interconnection mode is two-piece plug and socket interconnection or three-piece plug and socket interconnection with an adapter.

[0004] The above-mentioned traditional interconnection mode is complex to install, has no floating amount of inner and outer conductors, and needs to be fixed by high-temperature welding. The hard contact product interconnection in the assembly process may cause damage risk of the product. SUMMARY

[0005] In order to solve the above problems in the prior art, the application provides a self-adaptive inter-board welding-free radio frequency connector. The technical problem to be solved by the application is solved by the following technical scheme:

[0006] The application provides a self-adaptive inter-board welding-free radio frequency connector, which comprises a first elastic conductor piece, an insulating medium piece, a shell piece and a second elastic conductor piece, wherein,

[0007] The first elastic conductor piece comprises an inner conductor piece and an elastic piece located inside the inner conductor piece, and the inner conductor piece realizes axial floating through the elastic piece.

[0008] The insulating medium piece is sleeved on the outer side of the first elastic conductor piece through a stepped structure and is gap-fitted with the first elastic conductor piece.

[0009] The shell piece is fixed on the outer side of the insulating medium piece through a stop step structure, and a tapered surface groove is arranged on the inner wall of the end portion of the shell piece.

[0010] The second elastic conductor piece comprises two outer conductor pieces, and the two outer conductor pieces are correspondingly sleeved on the two end portions of the insulating medium piece. The outer conductor piece is in a horn-shaped petal clasp spring structure, realizes nesting with the shell piece through a ring-shaped protrusion matched with the tapered surface groove, and realizes axial floating by elastic contraction and expansion of the clasp spring structure.

[0011] Compared with the prior art, the application has the following beneficial effects:

[0012] 1. The adaptive inter-board solder-free radio frequency connector of the present application realizes stable electrical contact with the PCB through the elastic compression structure of the inner conductor and the outer conductor, changes the product interconnection from hard contact to soft connection, avoids the high-temperature thermal stress and board deformation problems caused by traditional welding process, and improves the installation reliability and service life of the PCB. The inner conductor realizes axial floating through the internal elastic member, and the outer conductor realizes axial expansion and contraction through the cooperation of the horn-shaped petal clasp spring structure and the conical surface groove of the shell, thereby providing bidirectional floating amount in the axial and radial directions, effectively compensating for the displacement caused by the installation error, thermal expansion and contraction, and vibration between the boards, and having strong adaptability.

[0013] 2. The adaptive inter-board solder-free radio frequency connector of the present application has a detachable structure, does not need to be welded, is simple to install and replace, greatly reduces the assembly and maintenance difficulty and time cost, and is particularly suitable for occasions that need to be frequently debugged or replaced. The outer conductor adopts a multi-petal petal elastic contact structure, has good elasticity and wear resistance after heat treatment, and provides multi-point contact protection, which can still maintain stable electrical connection even in a vibration and impact environment.

[0014] 3. The adaptive inter-board solder-free radio frequency connector of the present application has a simple overall design, a small number of parts, supports multi-channel parallel arrangement, is particularly suitable for modularized and high-density integrated electronic equipment, and is conducive to the miniaturization and lightweight design of the whole machine.

[0015] The above description is only a summary of the technical solutions of the present application. In order to more clearly understand the technical means of the present application, the content of the specification can be implemented, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic diagram of an adaptive inter-board solder-free radio frequency connector provided by an embodiment of the present application;

[0017] Figure 2 is a structural schematic diagram of an outer conductor provided by an embodiment of the present application;

[0018] Figure 3 is an installation schematic diagram of the adaptive inter-board solder-free radio frequency connector when the inter-board spacing is large, provided by an embodiment of the present application;

[0019] Figure 4 is an installation schematic diagram of the adaptive inter-board solder-free radio frequency connector when the inter-board spacing is small, provided by an embodiment of the present application.

[0020] Icon: 1 - inner conductor piece; 2 - elastic piece; 3 - first insulating medium piece; 4 - second insulating medium piece; 5 - first housing piece; 51 - first tapered surface groove; 6 - second housing piece; 61 - second tapered surface groove; 7 - outer conductor piece; 71 - annular main body part; 72 - contact spring; 73 - opening; 74 - annular protrusion; 8 - PCB board; 9 - metalized via hole; 10 - metal plating film; 11 - support structure cavity piece. DETAILED DESCRIPTION

[0021] In order to further illustrate the technical means and effects taken by the present application to achieve the predetermined object, a self-adaptive inter-board solderless RF connector according to the present application is described in detail below in combination with the drawings and specific embodiments.

[0022] The foregoing and other technical contents, features and effects of the present application can be clearly presented in the detailed description of the specific embodiments below in combination with the drawings. Through the description of the specific embodiments, the technical means and effects taken by the present application to achieve the predetermined object can be more deeply and specifically understood. However, the attached drawings are provided for reference and illustration only, and are not intended to limit the technical solutions of the present application.

[0023] The present application embodiment provides a self-adaptive inter-board solderless RF connector, please see Figure 1 , Figure 1 is a structural schematic diagram of a self-adaptive inter-board solderless RF connector provided by the present application embodiment. As Figure 1 shown, the self-adaptive inter-board solderless RF connector of the present embodiment includes a first elastic conductor piece, an insulating medium piece, a housing piece and a second elastic conductor piece.

[0024] In the present embodiment, the first elastic conductor piece includes an inner conductor piece 1 and an elastic piece 2 located inside the inner conductor piece 1, and the inner conductor piece 1 realizes axial floating through the elastic piece 2.

[0025] In an optional embodiment, the inner conductor piece 1 includes a first inner conductor part and a second inner conductor part; the first inner conductor part is provided with a first step near the outer periphery of the first end, the second inner conductor part is provided with a second step near the outer periphery of the second end, and the two ends of the elastic piece 2 are in close contact with the second end of the first inner conductor part and the first end of the second inner conductor part, respectively.

[0026] Optionally, the material of the inner conductor piece 1 can be beryllium bronze, which has good electrical conductivity, elasticity and fatigue resistance.

[0027] In other embodiments, the material of the inner conductor piece 1 can also be phosphor bronze, copper alloy gold plating, stainless steel gold plating, or other conductive materials such as titanium alloy, without limitation. Phosphor bronze has good elasticity and wear resistance, low cost, and is suitable for low frequency bands (such as DC-20GHz); copper alloy gold plating has high conductivity and good high temperature stability, and is suitable for high frequency and high speed applications; stainless steel gold plating has high mechanical strength and corrosion resistance, and is suitable for harsh environments (such as military and aerospace), but has slightly poor conductivity and needs to be optimized by plating; titanium alloy has the characteristics of lightweight, high strength, and corrosion resistance, and is suitable for weight-sensitive applications such as drones and satellites.

[0028] In the present embodiment, the elastic piece 2 is used to provide uniform and reliable axial elastic force. When the self-adaptive inter-board RF connector is connected with a PCB (Printed Circuit Board), the elastic piece 2 can ensure that the first inner conductor part and the second inner conductor part of the inner conductor piece 1 always maintain close contact with the PCB, thereby ensuring the stability and low loss of high frequency signal transmission. The elastic expansion and contraction characteristics of the elastic piece 2 enable the inner conductor piece 1 to achieve axial floating, effectively absorbing and compensating for the installation tolerance, thermal expansion coefficient difference, and slight displacement caused by vibration between the PCBs, greatly improving the adaptability and reliability of the product.

[0029] Optionally, the elastic piece 2 can be a hair button piece. As a precision spring element, the hair button piece has good fatigue resistance and can withstand multiple compression cycles without losing elasticity, thereby ensuring the service life and contact reliability of the connector in multiple plug-in or long-term vibration environments. As a standard piece, the hair button piece is easy to install and position, and its contact with the first inner conductor part and the second inner conductor end is simple and reliable, which helps to improve production efficiency and product consistency.

[0030] In other embodiments, the elastic piece 2 can also be a spiral spring, a bellows type contact piece, a metal wire mesh, or a conductive rubber, without limitation. The spiral spring can provide greater travel and more stable elastic force, and is suitable for scenarios with larger floating amounts; the bellows type contact piece can provide multi-directional floating capability and is suitable for complex assembly error scenarios; the metal wire mesh has good high frequency characteristics and flexibility and is commonly used for high frequency floating connections; the conductive rubber has certain conductivity and elasticity and is suitable for low frequency and high vibration environments.

[0031] In the present embodiment, the insulating medium piece is sleeved on the outside of the first elastic conductor piece through a stepped structure and is in gap cooperation with the first elastic conductor piece.

[0032] In an alternative embodiment, the insulating medium comprises a nested first insulating medium 3 and a second insulating medium 4; the first insulating medium 3 is provided with a first limiting step on the inner wall close to the first end, which cooperates with the first step; the second insulating medium 4 is provided with a second limiting step on the inner wall close to the second end, which cooperates with the second step.

[0033] In the present embodiment, the inner wall of the first insulating medium 3 close to the second end is provided with a step that cooperates with the outer periphery of the second insulating medium 4 close to the first end, so as to realize the nesting of the first insulating medium 3 and the second insulating medium 4. The nesting joint position of the first insulating medium 3 and the second insulating medium 4 is always kept within the axial floating stroke range of the inner conductor 1, so as to increase the creepage distance, while ensuring the smooth sliding of the inner conductor 1 and the elastic element 2 in the axial sliding process.

[0034] It can be understood that the inner hole diameters of the first insulating medium 3 and the second insulating medium 4 are slightly larger than those of the inner conductor 1 and the elastic element 2, and they are in clearance fit with each other, so as to ensure that the inner conductor 1 and the elastic element 2 can freely slide in the holes of the insulating medium.

[0035] Alternatively, the material of the insulating medium can be hard plastic, which can be PEI (polyetherimide), PI (polyimide) or PEEK (polyether ether ketone), so as to ensure the smooth support and expansion of the inner conductor 1 and the elastic element 2.

[0036] In the present embodiment, the shell is fixed to the outer side of the insulating medium through a stop step structure, and the shell is provided with a tapered surface groove on the inner wall close to the end.

[0037] In an alternative embodiment, the shell comprises a nested first shell 5 and a second shell 6; the first shell 5 is provided with a first tapered surface groove 51 on the inner wall close to the first end, and the second shell 6 is provided with a second tapered surface groove 61 on the inner wall close to the second end. The large end of the first tapered surface groove 51 is close to the first end of the first shell 5, and the large end of the second tapered surface groove 61 is close to the second end of the second shell 6.

[0038] In the present embodiment, the outer periphery of the first insulating medium 3 and the second insulating medium 4 located on both sides of the nesting joint is provided with a boss, the position where the first shell 5 meets the first insulating medium 3 is provided with a stop step that cooperates with the boss, and the position where the second shell 6 meets the second insulating medium 4 is provided with a stop step that cooperates with the boss.

[0039] It can be understood that the shoulder structure is a structure inside the radio frequency connector for fixing and positioning, and the shoulder structure forms a mechanical stop surface for limiting the axial position of the insulating medium piece in the shell piece. By installing the insulating medium piece against the shoulder, the insulating medium piece can be prevented from moving back and forth inside, and the structural stability of the entire assembly can be ensured. The shoulder structure provides a clear reference surface for the assembly process, enabling the installation of the insulating medium piece and the inner conductor to be fast and accurate, which is conducive to improving production efficiency and product consistency.

[0040] In the embodiment, the second elastic conductor piece includes two outer conductor pieces 7, which are correspondingly sleeved on the two end portions of the insulating medium piece. The outer conductor piece 7 has a trumpet-shaped petal clasp structure, and is nested with the shell piece through the annular protrusion 74 matched with the tapered groove. The outer conductor piece 7 realizes axial floating through the elastic contraction and expansion of the clasp structure.

[0041] In the embodiment, the tapered groove is the core structure for realizing the axial floating, self-adaption and reliable connection of the outer conductor piece 7. The annular protrusion 74 on the outer conductor piece 7 is nested and matched with the tapered groove of the shell piece. The inclined surface structure of the tapered surface provides a precise guide path for the compression and rebound of the clasp structure, ensuring that it can only smoothly slide in the axial direction and preventing radial deviation or jamming. The tapered groove mechanically limits the movement range of the outer conductor piece 7, ensuring that the outer conductor piece 7 can freely slide in the holes of the first shell piece 5 and the second shell piece 6 without falling off, preventing the clasp structure from excessively rebounding when it is elastically recovered or completely separating when it is compressed, and ensuring the controllability and safety of the floating of the outer conductor piece 7.

[0042] Please refer to Figure 2 , Figure 2 is a structural schematic diagram of an outer conductor piece provided by an embodiment of the present application, as Figure 2 shown, the outer conductor piece 7 includes an annular main body part 71 and a plurality of contact springs 72. An opening 73 is provided on the side wall of the annular main body part 71 in the axial direction and penetrates the annular main body part 71, so that the outer conductor piece 7 has radial elastic deformation capability. The plurality of contact springs 72 are arranged on the side wall of the annular main body part 71 close to the first end and are arranged along the circumferential direction of the annular main body part 71 to form a trumpet-shaped petal structure. The annular protrusion 74 with a tapered outer peripheral surface is arranged on the side wall of the annular main body part 71 close to the second end.

[0043] In the embodiment, the annular protrusion 74 of the outer conductor piece 7 is nested and tangent to the tapered groove of the shell piece. When the outer conductor piece 7 floats in the axial direction, the annular protrusion 74 slides in the axial direction in the tapered groove.

[0044] It can be understood that the plurality of contact springs 72 increases the number of contact points, and the snap spring structure and the trumpet-shaped petal of the outer conductor member 7 after heat treatment have elasticity, which ensures the reliability of the contact.

[0045] It should be noted that the adaptive inter-board solderless radio frequency connector of the embodiment is in a fixed form such as screw installation.

[0046] When the adaptive inter-board solderless radio frequency connector of the embodiment is applied to PCB board connection, the end of the inner conductor member 1 is in extrusion contact with the metalized via of the PCB board, and the plurality of contact springs 72 of the outer conductor member 7 is in extrusion contact with the metal plated film of the PCB board. Among them, the axial floating range of the inner conductor member 1 and the outer conductor member 7 is 0-0.5mm.

[0047] Further, please refer to the application examples of the adaptive inter-board solderless radio frequency connector shown in Figure 3 and Figure 4 to illustrate the working process of the adaptive inter-board solderless radio frequency connector of the embodiment.

[0048] First, the adaptive inter-board solderless radio frequency connector is installed on the support structure cavity member 11, and the upper and lower support structure cavity member 11 is installed with the PCB board 8 and fastened with screws, so as to sandwich the adaptive inter-board solderless radio frequency connector between the two PCB boards 8. At this time, the two ends of the inner conductor member 1 of the adaptive inter-board solderless radio frequency connector form extrusion contact with the metalized via 9 of the two PCB boards 8, respectively, to ensure reliable transmission of high-frequency signals; the plurality of contact springs 72 of the two outer conductor members 7 form extrusion contact with the metal plated film 10 of the two PCB boards 8, respectively, to realize reliable grounding.

[0049] Since the adaptive inter-board solderless radio frequency connector is not rigidly connected, the inner and outer conductor members have the ability to float in the axial direction, i.e. perpendicular to the PCB board 8.

[0050] As shown in Figure 3 the installation schematic diagram of the adaptive inter-board solderless radio frequency connector when the board spacing is large, when the PCB board spacing is large, the axial pressure applied on the inner conductor member 1 is small. At this time, the elastic force of the elastic member 2 will push the inner conductor member 1 outward, i.e. extend a distance towards the PCB board 8, to ensure that the end part can be tightly extruded on the metalized via 9 of the PCB board 8, to form a stable electrical connection.

[0051] When the PCB spacing is large, the annular main body 71 of the outer conductor 7, i.e., the snap ring structure, experiences less pressure. The elasticity of the outer conductor 7 itself causes it to slide along the conical groove of the outer casing towards the PCB 8, resulting in axial elongation of the outer conductor 7. The multiple contact springs 72 of the outer conductor 7, i.e., the trumpet-shaped petals, can fully open to make sufficient pressure to contact the metal coating 10 of the PCB 8 over a large area, ensuring good low-frequency and DC grounding circuits.

[0052] like Figure 4 The diagram shows the installation of the adaptive inter-board solderless RF connector when the PCB spacing is small. When the PCB spacing is small, the axial pressure applied to the inner conductor 1 increases. At this time, the pressure overcomes the elastic force of the elastic element 2, pushing the inner conductor 1 to contract inward, avoiding damage to the PCB board 8 or the adaptive inter-board solderless RF connector itself due to excessive compression, while still maintaining sufficient contact pressure with the metallized via 9 of the PCB board 8 to ensure signal transmission quality.

[0053] When the PCB spacing is small, the annular main body 71 of the outer conductor 7, i.e., the snap ring structure, is subjected to enormous axial pressure. This pressure forces the outer conductor 7 to slide along the conical groove of the outer casing in a direction away from the PCB board 8, causing the diameter of the annular main body 71 of the outer conductor 7 to elastically contract, resulting in axial shortening of the outer conductor 7. Although the outer conductor 7 is compressed, the multiple contact springs 72 of the outer conductor 7, i.e., the trumpet-shaped petals, can still maintain reliable contact with the metal plating 10 of the PCB board 8 through elasticity, while avoiding structural damage caused by excessively small spacing.

[0054] Throughout the adaptive floating process, the inner conductor 1 slides smoothly within the aperture of the insulating dielectric component, and its floating range is controlled by the limiting steps within the insulating dielectric component. The insulating dielectric component not only provides a sliding channel and limiting mechanism for the inner conductor 1, but its nested structure design also ensures sufficient creepage distance even at maximum floating distance, preventing high-frequency signal leakage or breakdown. The synchronous, unidirectional floating design of the inner and outer conductors minimizes the relative positional change between them, effectively maintaining the characteristic impedance stability of the transmission line and ensuring stable transmission of RF signals within the DC~40GHz frequency range.

[0055] It can be understood that in the present embodiment, the inner hole diameters of the first and second insulating medium members 3 and 4 are slightly larger than those of the inner conductor member 1 and the elastic member 2, and are in clearance fit with each other. Therefore, when there is a radial (i.e. horizontal) misalignment or tolerance between the two PCBs 8, the entire first elastic conductor member (the inner conductor member 1 and the elastic member 2) can move slightly radially in the hole of the insulating medium member, so as to adaptively align with the metallized via 9 of the PCB 8. The range of this radial movement is determined by the size of the clearance (e.g. 0.05mm-0.2mm clearance in the diameter direction). The elasticity of the elastic member 2 ensures that the inner conductor member 1 can still maintain reliable elastic contact with the metallized via 9 of the PCB 8 even in the case of radial misalignment, instead of hard collision.

[0056] Secondly, the radial floating of the second elastic conductor member is mainly realized by the cooperation of the outer conductor member 7 with the first and second housing members 5 and 6 in the trumpet petal clip spring structure. The cooperation of the conical boss-conical groove of the outer conductor member 7 with the first and second housing members 5 and 6 itself allows a certain angle of deflection. In addition, the outer conductor member 7 has elasticity after heat treatment, and when there is a radial deviation between the PCBs 8, the force applied on the plurality of contact springs 72 will be uneven, and each contact spring 72 can independently elastically deform, for example, the contact springs 72 on one side are compressed, and the contact springs 72 on the other side can remain unchanged or slightly stretched. This local and uneven elastic deformation enables the contact end (the contact springs 72) of the outer conductor member 7 to produce a slight angular deflection and central deviation relative to the fixed end (the housing end), so as to compensate for the radial deviation.

[0057] Therefore, the radial adaptive capability of the adaptive inter-board solderless RF connector of the present embodiment is the result of the superposition of the radial clearance of the inner conductor member 1 and the radial deflection capability of the outer conductor member 7. When there is a radial deviation between the PCBs 8, the force is transmitted to the outer conductor member 7 and the inner conductor member 1 through the PCBs 8. The outer conductor member 7 absorbs most of the deviation by elastic deformation through the clip spring structure, while the inner conductor member 1 moves in the hole for further fine adjustment. Finally, the inner and outer conductor members can automatically find the position and establish reliable connection even in the case of imperfect alignment between the boards.

[0058] The adaptive inter-board solderless RF connector of the present embodiment automatically compensates for the deviation of the actual distance between the PCBs from the ideal value through the extension and contraction of the inner and outer conductor members, and can automatically adjust the length itself whether the distance is too large or too small, so as to always provide a stable impedance, reliable contact and physically solid transmission path for the RF signal, while achieving excellent grounding performance.

[0059] The adaptive inter-board welding-free radio frequency connector of the embodiment of the present application realizes stable electrical contact with the PCB through the elastic compression structure of the inner conductor and the outer conductor, changes the product interconnection from hard contact to soft connection, avoids the high-temperature thermal stress and the board deformation problem caused by the traditional welding process, and improves the installation reliability and the service life of the PCB. The inner conductor realizes axial floating through the internal elastic member, the outer conductor realizes axial expansion and contraction through the cooperation of the horn-shaped petal clasp spring structure and the conical surface groove of the shell, and the axial and radial bidirectional floating amounts are provided together, which effectively compensates for the displacement caused by the installation error, thermal expansion and contraction and vibration between the boards, and has strong adaptability. The outer conductor is a detachable structure and does not need to be welded, and the installation and replacement are simple, which greatly reduces the assembly and maintenance difficulty and time cost, and is especially suitable for occasions that need to be frequently debugged or replaced. The outer conductor adopts a multi-petal petal elastic contact structure, has good elasticity and wear resistance after heat treatment, and provides multi-point contact protection, which can still maintain stable electrical connection in a vibration and impact environment.

[0060] The adaptive inter-board welding-free radio frequency connector of the embodiment of the present application has simple overall design, few parts, supports multi-channel parallel arrangement, is especially suitable for modularized and high-density integrated electronic equipment, and is beneficial to miniaturization and light weight design of the whole machine.

[0061] It should be noted that, in this document, the terms such as first and second are used merely to distinguish one entity or operation from another, and do not necessarily require or imply that these entities or operations exist in any actual relationship or order. Moreover, the terms "include", "contain" or any other variant are intended to cover non-exclusive inclusion, so that the article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the article or device including the element. The terms "connected" or "connected" and the like are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The directions or position relationships indicated by "up", "down", "left", "right" and the like are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0062] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the particular feature or characteristic being described is included in at least one embodiment or example of the present application. The illustrative description of these terms in this specification is not necessarily referring to the same embodiment or example. Moreover, the particular features or characteristics described can be combined in any suitable manner in one or more embodiments or examples. Furthermore, those skilled in the art can make several modifications or adaptations to the description of the specification without departing from the concept of the present application.

[0063] The above is further detailed description of the present application in combination with specific preferred embodiments, and cannot be deemed as limitation of the specific implementation of the present application to these descriptions. For those skilled in the art, several simple deductions or replacements can be made without departing from the concept of the present application, and all of them shall be deemed as falling within the protection scope of the present application.

Claims

1. An adaptive inter-board solderless radio frequency connector, characterized by, The utility model relates to a kind of elastic conductor, it includes: first elastic conductor, insulating medium, shell and second elastic conductor, wherein, The first elastic conductor includes inner conductor (1) and elastic element (2) inside the inner conductor (1), the inner conductor (1) is realized axial floating by the elastic element (2); The insulating medium is set on the outside of the first elastic conductor by step structure, and is gap matched with the first elastic conductor; The shell is fixed on the outside of the insulating medium by stop step structure, and the inner wall of the shell near end is provided with taper groove; The second elastic conductor includes two outer conductors (7), and the two outer conductors (7) are correspondingly set on the both ends of the insulating medium, and the outer conductor (7) is trumpet petal clasp spring structure, and the outer conductor (7) is nested with the shell by the ring protrusion (74) matched with the taper groove, and the outer conductor (7) realizes axial floating by the elastic contraction and expansion of clasp spring structure. The inner conductor (1) includes first inner conductor and second inner conductor; 2. The self-adapting inter-board solderless radio frequency connector of claim 1, wherein, The first inner conductor is provided with first step on the outer periphery near first end, and the second inner conductor is provided with second step on the outer periphery near second end, and the both ends of the elastic element (2) are in close contact with the second end of the first inner conductor and the first end of the second inner conductor respectively. The elastic element (2) is a hair button element.

3. The self-adapting inter-board solderless radio frequency connector of claim 1, wherein, The insulating medium includes nested first insulating medium (3) and second insulating medium (4); 4. The self-adapting inter-board solderless radio frequency connector of claim 2, wherein, The first insulating medium (3) is provided with first limit step matched with the first step on the inner wall near first end, and the second insulating medium (4) is provided with second limit step matched with the second step on the inner wall near second end. The shell includes nested first shell (5) and second shell (6); 5. The self-adapting inter-board solderless radio frequency connector of claim 1, wherein, The first shell (5) is provided with first taper groove (51) on the inner wall near first end, and the second shell (6) is provided with second taper groove (61) on the inner wall near second end. The large end of the first taper groove (51) is near the first end of the first shell (5), and the large end of the second taper groove (61) is near the second end of the second shell (6).

6. The self-adapting inter-board solderless radio frequency connector of claim 5, wherein, The outer conductor (7) includes ring body (71) and multiple contact springs (72); 7. The self-adapting inter-board solderless radio frequency connector of claim 1, wherein, The side wall of the ring body (71) is provided with opening (73) penetrating the ring body in axial direction, so that the outer conductor (7) has radial elastic deformation ability; Multiple contact springs (72) are arranged on the side wall of the ring body (71) near first end, and multiple contact springs (72) are arranged in horn petal structure along the circumferential direction of the ring body (71); The ring protrusion (74) with taper outer periphery is arranged on the side wall of the ring body (71) near second end. The material of the insulating medium is hard plastic.

8. The self-adapting inter-board solderless radio frequency connector of claim 1, wherein, The axial floating range of the inner conductor (1) and the outer conductor (7) is 0-0.5mm.

9. The self-adapting inter-board solderless radio frequency connector of claim 1, wherein, ​ 10. The self-adapting inter-board solderless radio frequency connector of claim 7, wherein, When the self-adapting inter-board solderless radio frequency connector is applied to PCB board connection, the end of the inner conductor piece (1) is in extrusion contact with the metallized via of the PCB board, and the plurality of contact springs (72) of the outer conductor piece (7) are in extrusion contact with the metal-plated film of the PCB board.

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