CN210806064U - Radio frequency connector with larger radial tolerance - Google Patents
Radio frequency connector with larger radial tolerance Download PDFInfo
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- CN210806064U CN210806064U CN201921693256.XU CN201921693256U CN210806064U CN 210806064 U CN210806064 U CN 210806064U CN 201921693256 U CN201921693256 U CN 201921693256U CN 210806064 U CN210806064 U CN 210806064U
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- insulating sleeve
- needle
- female end
- radio frequency
- end joint
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Abstract
The utility model discloses a radio frequency connector with larger radial tolerance, which comprises a central needle, a middle insulating sleeve and an outer conductor; the central needle is in a hollow columnar structure; the central needle is wrapped by a needle body and a female end joint; the needle body is provided with a limit convex part protruding from the surface of the needle body; the outer end of the female end joint is provided with a connecting ring; at least two strip-shaped grooves are formed in the female end joint; the strip-shaped groove is positioned on the side wall of the female end joint and penetrates through the side wall of the female end joint; the strip-shaped groove is arranged along the axial direction of the central needle to divide the female end joint into a plurality of elastic reeds; the middle part of the elastic spring leaf is bent towards the inner side of the central needle to form a contact with the middle part arched inwards; the middle insulating sleeve is of a cylindrical structure and is sleeved outside the central needle; the outer conductor is sleeved outside the middle insulating sleeve. The utility model discloses production machining efficiency is high, and low in manufacturing cost is suitable for the industrialization volume production, and product quality is good, and connection stability is good, and fail safe nature has great radial tolerance, long service life.
Description
Technical Field
The utility model relates to a radio frequency connector field especially relates to a radio frequency connector of great radial tolerance.
Background
Connectors are very widely used in thousands of electronic component products, and rf connectors are one of many connector families. The connector is mainly characterized in that signals transmitted by the connector are radio frequency signals. Radio frequency connectors are typically comprised of an outer conductor, an intermediate insulating sleeve and a central pin.
Module inboard interconnection need use a plurality of radio frequency connectors, radio frequency connector can realize being connected between different PCB boards and the PCB board, there is the seat of welding on the PCB board to make female needle form, in the connection of PCB board and PCB board, the female needle seat will be much higher than the male needle seat spoilage, if the female needle seat on the PCB board is damaged, it is difficult to trade female needle seat alone, generally will have female needle seat and the PCB board that contains many components and parts is whole to be traded, this has just caused higher cost. If set up public needle seat on the PCB board, because public needle seat is not fragile, just can reduce the replacement to the PCB board.
In addition, in the use process of the radio frequency connector, machining tolerance exists between the structural component and the PCB, an assembly gap exists between pin holes, position deviation exists between the PCB and the pin holes, and the position deviation includes position tolerance, position offset, step machining tolerance of the structural component and the like, and the position deviation is accumulated on the radio frequency connector, so that the radio frequency connector needs large radial tolerance.
The existing radio frequency connector cannot well solve the problems. Meanwhile, the existing radio frequency connector has the problems of complex structure, high manufacturing cost, poor connection stability, poor safety and reliability, easy occurrence of bending damage of the terminal and the like caused by rancour on the terminal end face of the central pin during oblique insertion.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a radio frequency connector of great radial tolerance to not enough among the prior art, improve on current radio frequency connector's basis, solved current radio frequency connector and adopted public needle form, lead to the female needle seat on the PCB board to damage easily and change inconveniently to and there is the structure complicacy, manufacturing cost is high, connection stability is poor, the fail safe nature is poor, radial tolerance is little, fragile, the short problem of life.
In order to achieve the above purpose, the technical scheme of the utility model is as follows: a radio frequency connector with large radial tolerance comprises
A central needle; the central needle is of a hollow columnar structure; the central needle comprises a needle body positioned in the middle and female end connectors arranged at two ends of the needle body and connected with the needle body; the needle body is provided with a limit convex part protruding from the surface of the needle body; the outer end of the female end joint is provided with a connecting ring; at least two strip-shaped grooves are formed in the female end joint; the strip-shaped groove is positioned on the side wall of the female end joint and penetrates through the side wall of the female end joint; the strip-shaped groove is arranged along the axial direction of the central needle and divides the female end joint into a plurality of elastic reeds; two ends of the elastic reed are respectively connected with the needle body and the connecting ring; the middle part of the elastic reed is bent towards the inner side of the central needle to form a contact with the middle part arched inwards;
an intermediate insulating sleeve; the middle insulating sleeve is of a cylindrical structure and is sleeved outside the central needle; the middle insulating sleeve is formed by splicing two symmetrical semi-circular sleeve bodies along the axial section of the middle insulating sleeve; an annular inner limiting groove matched with the limiting convex part is formed in the inner wall of the middle insulating sleeve;
an outer conductor; the outer conductor is sleeved outside the middle insulating sleeve; the middle insulating sleeve comprises a cylindrical body part with a cylindrical structure and connecting end parts symmetrically arranged at two ends of the cylindrical body part; the barrel body part is provided with a limiting buckle which is sunken towards the inner side of the barrel body part; an inner limiting groove which is matched with the limiting buckle and surrounds the middle insulating sleeve is arranged on the outer wall of the middle insulating sleeve; the connecting end part is provided with at least two separation grooves along the axial direction of the outer conductor, and the separation grooves separate the connecting end part into a plurality of arc-shaped head elastic sheets.
As an optimized scheme of the utility model, the central needle is curled by the even panel punching press of thickness and is formed there is the concatenation seam in one side of central needle.
As a preferred scheme of the utility model, two ends of the middle insulating sleeve are provided with insertion ports; an accommodating groove is formed in the middle insulating sleeve, and the female end joint is positioned in the accommodating groove; the inner diameter of the connecting ring is larger than the pipe diameter of the inserting port.
As a preferred scheme of the utility model, the outer conductor is made of an integral cylindrical metal material, and no splicing seam or welding seam is formed on the peripheral surface of the outer conductor; no press drawing is performed in the axial direction of the outer conductor.
As an optimized scheme of the utility model, spacing buckle be to barrel portion inboard sunken concave point or concave ring.
As a preferable aspect of the present invention, the head spring is inclined to the outside of the barrel portion; a bead convex ring is arranged at the outer end of the connecting end part; the arch top of the bead convex ring is of a flat top structure and is provided with a straight cylinder section of a straight cylinder structure.
As a preferred scheme of the utility model, the limiting convex part is a convex piece structure formed by tearing the needle body side wall outwards.
As a preferred scheme of the utility model, two ends of the middle insulating sleeve are provided with insulating insertion parts; the outer wall of the insulating insertion part is of an inward-converging conical structure.
As an optimized proposal of the utility model, the inner spacing grooves are two and are arranged at intervals.
As an optimal scheme of the utility model be provided with the annular groove on the outer wall of middle insulating cover, the annular groove is located spacing convex part corresponds the position.
Through the technical scheme, the utility model discloses technical scheme's beneficial effect is:
1) the utility model discloses have great radial tolerance, the elasticity reed adopts the grafting structure of restrainting inwards earlier and outwards expanding again, has great resilience space, and the guidance quality is good during the grafting, can guarantee great oblique insertion angle, sets up the go-between simultaneously, guarantees resilience performance, and the go-between hides in the grafting mouth of middle insulating sleeve, during oblique insertion, can not rancour to the front end of female end joint to the spigot plug yet, and the durability is good, helps guaranteeing great radial tolerance and life; in addition, the middle insulating sleeve adopts a split combined design, which is also beneficial to ensuring a sufficient resilience space during oblique insertion; the straight cylinder section design of the head elastic sheet is also beneficial to improving the automatic aligning performance in the inserting process;
2) the utility model has good connection stability, the elastic reeds form a multi-contact structure, stable and reliable contact is ensured when vibration occurs in all directions, and meanwhile, the arrangement of the connecting rings can improve the processing stability of the elastic reeds, ensure the shape identity and stability between the elastic reeds, and is not easy to deform, thereby ensuring the safety and reliability of connection; the limiting convex part adopts a structure of puncture and tearing, so that materials are removed as little as possible to ensure the signal integrity in the signal transmission process;
3) the radio frequency connector of the utility model forms a mode that both ends are made into female needles, and can be connected with the PCB board provided with the male needles on the two seats, thus the reliability of the seat directly welded and connected with the PCB board can be improved, compared with the prior seat provided with the female needles on the PCB board, the seat provided with the male needles on the PCB board can reduce the damage rate, and is convenient to replace;
4) the utility model has simple structure, high production and processing efficiency, low manufacturing cost, suitability for industrialized mass production and good product quality; the outer conductor is formed by processing a cylindrical section, so that the manufacturing cost is low, the structure is firm, the outer conductor is not easy to deform, only processing steps such as blanking and bending are needed, structures such as steps are not arranged, stamping and stretching are not needed, a stamping and stretching processing mechanism is complex, stamping processes such as rotary cutting and side cutting are needed, the die utilization rate is low, and the production quality is unstable; the middle insulating sleeve is formed by splicing two symmetrical semi-circular sleeve bodies along the axial section of the middle insulating sleeve, so that the middle insulating sleeve is convenient to perform injection molding, subsequent turning is not needed, the demolding is convenient, the middle insulating sleeve is suitable for mass production, and the processing cost is low; the center needle is formed by bending a plate with uniform wall thickness after stamping, and compared with the conventional mode of machining the center needle by a turning machine, the center needle can reduce the consumption of raw materials, shorten the time consumed by machining and increase the productivity.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 and 2 are schematic views of the external structure of the present invention.
Fig. 3 is a schematic structural view of the present invention without the outer conductor.
Fig. 4 is a schematic structural view of the middle insulating sleeve of the present invention.
Fig. 5 is a schematic view of the structure of the middle insulation sleeve and the central needle of the present invention.
Fig. 6 and 7 are schematic structural views of the center needle of the present invention.
Fig. 8 is a schematic view of an end face structure of one end of the present invention.
The corresponding part names indicated by the numbers and letters in the drawings:
1. outer conductor 2, middle insulating sleeve 3, spacing buckle
4. Head spring 5, outer limit groove 6, annular groove
7. Insulating plug part 8, central needle 9, female end connector
10. The limiting convex part 11, the elastic spring 12 and the strip-shaped groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
With reference to fig. 1 to 8, the present invention provides a radio frequency connector with large radial tolerance, which includes a center pin 8, an intermediate insulating sleeve 2 and an outer conductor 1. The utility model discloses improve to current radio frequency connector, have great radial tolerance.
Specifically, referring to fig. 6 and 7, the central needle 8 has a hollow cylindrical structure. The central needle 8 may be formed by punching and crimping a sheet material of uniform thickness, with a splice seam being present on one side of the central needle 8. The central needle 8 comprises a needle body positioned in the middle and female end connectors 9 arranged at two ends of the needle body and connected with the needle body. The needle body is provided with a limit convex part 10 which is raised on the surface of the needle body. Preferably, the limit protrusion 10 is a tab structure formed by tearing outward to puncture the sidewall of the needle body. The structure can remove materials as little as possible to ensure that the signal integrity in the signal transmission process is provided with a connecting ring at the outer end of the female end joint 9. At least two strip-shaped grooves 12 are arranged on the female end joint 9. The strip-shaped groove 12 is located on the side wall of the female end fitting 9 and penetrates through the side wall of the female end fitting 9. The strip-shaped groove 12 is provided along the axial direction of the center needle 8, and divides the female terminal fitting 9 into a plurality of elastic reeds 11. Two ends of the elastic reed 11 are respectively connected with the needle body and the connecting ring. The middle part of the elastic spring leaf 11 bends towards the inner side of the central needle 8 to form a contact with the middle part arched inwards. The contacts at the same end of the central axis are located on the same radial section of the central needle 8. Elastic reed 11 forms the multicontact structure, can guarantee when all directions vibrations take place, all has reliable and stable contact, and the setting of go-between can improve the stability of elastic reed 11 processing on the one hand simultaneously, guarantees the identity and the stability of shape between the elastic reed 11 to non-deformable guarantees the safe and reliable of connection. Structural changes to the central needle 8 are also important means of achieving large radial tolerances. The elastic reed 11 adopts an inserting structure which is firstly inwards contracted and then outwards expanded, has a larger resilience space, has good guidance quality during inserting, can ensure a larger inclined inserting angle, and is provided with a connecting ring to ensure the resilience performance.
Referring to fig. 3 to 5, the intermediate insulating sleeve 2 is cylindrical and is sleeved on the central needle 8. The middle insulating sleeve 2 is formed by splicing two symmetrical semi-circular sleeve bodies along the axial section of the middle insulating sleeve 2. The inner wall of the middle insulating sleeve 2 is provided with a circular inner limiting groove matched with the limiting convex part 10. In order to improve the installation stability between the middle insulating sleeve 2 and the central needle 8, two inner limiting grooves are arranged at intervals. Preferably, two ends of the middle insulating sleeve 2 are provided with insulating plug parts 7; the outer wall of the insulating plug part 7 is in a conical structure which is inwardly contracted. This structure cooperation middle insulating cover 2 split integrated configuration can improve middle insulating cover 2's resilience space. In order to improve the utility model discloses an adjustable performance is convenient for adjust characteristic impedance, is provided with annular groove 6 on the outer wall of middle insulating sleeve 2, and annular groove 6 is located spacing convex part 10 and corresponds the position.
Referring to fig. 1 and 1, an outer conductor 1 is sleeved outside an intermediate insulating sleeve 2. The outer conductor 1 can be made of an integral cylindrical metal material, and no splicing seam or welding seam is formed on the circumferential surface of the outer conductor 1; no press drawing is performed in the axial direction of the outer conductor 1. The middle insulating sleeve 2 comprises a cylindrical body part with a cylindrical structure and connecting end parts symmetrically arranged at two ends of the cylindrical body part; the barrel part is provided with a limiting buckle 3 which is sunken towards the inner side of the barrel part. Specifically, the limiting buckle 3 is a concave point or a concave ring which is concave towards the inner side of the cylinder part. An inner limiting groove which is matched with the limiting buckle 3 and surrounds the middle insulating sleeve 2 is arranged on the outer wall of the middle insulating sleeve 2; the connecting end part is provided with at least two separation grooves along the axial direction of the outer conductor 1, and the separation grooves divide the connecting end part into a plurality of arc-shaped head elastic sheets 4. In order to improve the automatic guiding function in the inserting process, the head elastic sheet 4 inclines towards the outer side of the barrel body part; the outer end of the connecting end part is provided with a bead convex ring; the arch top of the bead convex ring is of a flat top structure and is provided with a straight cylinder section of a straight cylinder structure.
Referring to fig. 8, the front end of the female terminal 9 is preferably designed to be a hidden structure, and two ends of the middle insulating sleeve 2 are provided with sockets; an accommodating groove is formed in the middle insulating sleeve 2, and the female end joint 9 is positioned in the accommodating groove; the inner diameter of the connecting ring is larger than the pipe diameter of the interface. The connecting ring is hidden in the plug socket of the middle insulating sleeve 2, and when the plug socket is obliquely inserted, the plug end core rod cannot rancour reach the front end of the female end connector 9, so that the durability is good, and the larger radial tolerance and the service life are guaranteed.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A radio frequency connector with large radial tolerance is characterized by comprising
A central needle; the central needle is of a hollow columnar structure; the central needle comprises a needle body positioned in the middle and female end connectors arranged at two ends of the needle body and connected with the needle body; the needle body is provided with a limit convex part protruding from the surface of the needle body; the outer end of the female end joint is provided with a connecting ring; at least two strip-shaped grooves are formed in the female end joint; the strip-shaped groove is positioned on the side wall of the female end joint and penetrates through the side wall of the female end joint; the strip-shaped groove is arranged along the axial direction of the central needle and divides the female end joint into a plurality of elastic reeds; two ends of the elastic reed are respectively connected with the needle body and the connecting ring; the middle part of the elastic reed is bent towards the inner side of the central needle to form a contact with the middle part arched inwards;
an intermediate insulating sleeve; the middle insulating sleeve is of a cylindrical structure and is sleeved outside the central needle; the middle insulating sleeve is formed by splicing two symmetrical semi-circular sleeve bodies along the axial section of the middle insulating sleeve; an annular inner limiting groove matched with the limiting convex part is formed in the inner wall of the middle insulating sleeve;
an outer conductor; the outer conductor is sleeved outside the middle insulating sleeve; the middle insulating sleeve comprises a cylindrical body part with a cylindrical structure and connecting end parts symmetrically arranged at two ends of the cylindrical body part; the barrel body part is provided with a limiting buckle which is sunken towards the inner side of the barrel body part; an inner limiting groove which is matched with the limiting buckle and surrounds the middle insulating sleeve is arranged on the outer wall of the middle insulating sleeve; the connecting end part is provided with at least two separation grooves along the axial direction of the outer conductor, and the separation grooves separate the connecting end part into a plurality of arc-shaped head elastic sheets.
2. The larger radial tolerance radio frequency connector according to claim 1, wherein the central pin is formed by stamping and crimping a sheet material of uniform thickness, and a splice seam is present on one side of the central pin.
3. The larger radial tolerance rf connector of claim 2, wherein the intermediate insulating sleeve has sockets at both ends; an accommodating groove is formed in the middle insulating sleeve, and the female end joint is positioned in the accommodating groove; the inner diameter of the connecting ring is larger than the pipe diameter of the inserting port.
4. The large radial tolerance radio frequency connector according to claim 2, wherein the outer conductor is machined from an integral cylindrical metal material, and no splice or weld is formed on the peripheral surface of the outer conductor; no press drawing is performed in the axial direction of the outer conductor.
5. The large radial tolerance radio frequency connector of claim 2, wherein the retaining snap is a dimple or a recessed ring that is recessed inward of the barrel portion.
6. The large radial tolerance radio frequency connector of claim 2, wherein the head spring is inclined to the outside of the barrel portion; a bead convex ring is arranged at the outer end of the connecting end part; the arch top of the bead convex ring is of a flat top structure and is provided with a straight cylinder section of a straight cylinder structure.
7. The large radial tolerance radio frequency connector of claim 2, wherein the stop boss is a tab structure formed by tearing outward to puncture the sidewall of the needle body.
8. The large radial tolerance radio frequency connector of claim 2, wherein an insulating plug portion is disposed at both ends of the intermediate insulating sleeve; the outer wall of the insulating insertion part is of an inward-converging conical structure.
9. The large radial tolerance radio frequency connector according to claim 2, wherein the two inner limiting grooves are spaced apart from each other.
10. The larger radial tolerance rf connector of claim 9, wherein an annular groove is disposed on an outer wall of the intermediate insulating sleeve, the annular groove being located at a position corresponding to the position-limiting protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921693256.XU CN210806064U (en) | 2019-10-11 | 2019-10-11 | Radio frequency connector with larger radial tolerance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921693256.XU CN210806064U (en) | 2019-10-11 | 2019-10-11 | Radio frequency connector with larger radial tolerance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210806064U true CN210806064U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921693256.XU Active CN210806064U (en) | 2019-10-11 | 2019-10-11 | Radio frequency connector with larger radial tolerance |
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| CN (1) | CN210806064U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110600916A (en) * | 2019-10-11 | 2019-12-20 | 江苏和飞航天电子有限公司 | Radio frequency connector with larger radial tolerance |
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2019
- 2019-10-11 CN CN201921693256.XU patent/CN210806064U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110600916A (en) * | 2019-10-11 | 2019-12-20 | 江苏和飞航天电子有限公司 | Radio frequency connector with larger radial tolerance |
| CN110600916B (en) * | 2019-10-11 | 2024-04-05 | 江苏和飞航天电子有限公司 | Radio frequency connector with larger radial tolerance |
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