CN215008827U

CN215008827U - Tolerance radio frequency coaxial connector

Info

Publication number: CN215008827U
Application number: CN202121347433.6U
Authority: CN
Inventors: 李斌; 芦坤
Original assignee: Zhenjiang Huazhan Electronic Science & Technology Co ltd
Current assignee: Zhenjiang Huazhan Electronic Science & Technology Co ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-12-03
Anticipated expiration: 2031-06-17

Abstract

The invention discloses a tolerance radio frequency coaxial connector, which comprises: a socket, an adaptor; the socket comprises a socket outer conductor, a socket inner conductor, a socket middle insulator and socket clamping jaws; the socket inner conductor is fixed in the socket outer conductor through a socket intermediate insulator, and the socket inner conductor is coaxial with the socket outer conductor; the elastic claw end of the socket claw is outwards embedded into the outer conductor of the socket; the adapter comprises an adapter outer conductor, an adapter inner conductor and an adapter intermediate insulator; the outer conductor of the adapter is a hollow cylinder; the inner conductor of the adapter is a cylinder; the adapter inner conductor is coaxial with the adapter outer conductor, and the adapter inner conductor is fixed in the adapter outer conductor through the adapter intermediate insulator. The invention unifies the structure of the original two sockets with different structures, does not distinguish the socket of the sliding-in end and the socket of the clamping end, and sets the two ends of the adapter into different structures to distinguish the clamping end and the sliding-in end, thereby reducing the product types and the production cost.

Description

Tolerance radio frequency coaxial connector

Technical Field

The utility model relates to a radio frequency coaxial connector especially relates to a tolerance radio frequency coaxial connector, belongs to electron device technical field.

Background

In the new generation of mobile communication systems, which have stringent requirements on the size and cost of the devices, the mobile communication devices are increasingly miniaturized and modularized, and various miniaturized modules are no longer connected by means of the previously common jumper wires of the cable assembly, but are interconnected by means of various connectors. Various new types of connectors are produced, wherein direct connection methods are adopted between various radio frequency modules and high-frequency circuit boards and between the high-frequency circuit boards, and SMP-type complete connectors are adopted for interconnection in most scenes. The connector is developed into subdivided varieties of different types at present, and basically comprises three parts, namely sockets at two ends and an adapter in the middle, wherein the sockets at the two ends are generally divided into a clamping end and a sliding end, and the middle part is a clamping jaw type double-female adapter with the same two ends. The adapter is generally clamped and kept connected with the clamping hole of the outer conductor of the clamping end socket through the boss of the outer conductor of the adapter, and when a circuit board on which the clamping end socket is located and a circuit board on which the sliding end socket is located are close to each other, the adapter can be inserted into the sliding end socket under the horn-shaped guide of the outer conductor of the sliding end socket to form electrical connection.

When the radio frequency connectors in the prior art are mutually inserted and engaged in an ideal state, the axes of the clamping end socket, the sliding-in end socket and the adapter are completely aligned, so that normal engagement and separation can be ensured. However, in actual use, due to the accumulation of various design structures and manufacturing tolerances, there is usually a certain deviation between the axis of the clamping end socket and the axis of the sliding end socket, and the adapter cannot be inserted as desired to keep the axes aligned. The SMP type radio frequency connector is allowed to have a certain axial line deflection angle during design, but the contact pin of the existing radio frequency connector is designed on a socket, and the jack is designed on an adapter. Meanwhile, through repeated plugging and unplugging, the clamping jaws of the plugging and unplugging ends of the adapter and the clamping end socket can deform, so that the adapter cannot naturally recover the state of alignment with the axis of the clamping end socket in the natural state without being meshed, and the deviation appears in advance. Such deflection may cause the port of the sliding-in end of the adaptor and the center of the socket of the sliding-in end to be excessively deviated in the initial stage of engagement by the sum of the displacement caused by the deflection occurred in advance and the tolerance existing in the assembling process itself, and the increase of the deviation amount may cause the horn-shaped guide of the sliding-in end of the initial stage of engagement to fail to achieve the ideal guide effect, or even cause mechanical damage to the jaws of the adaptor.

Disclosure of Invention

The utility model provides a tolerance radio frequency coaxial connector to solve among the prior art and insert the too big or misuse of skew angle that appears of in-process, can cause the technical problem that jack damage, intermediate transfer ware jack catch mechanical damage.

The utility model provides a tolerance radio frequency coaxial connector, include: a socket, an adaptor; the socket comprises a socket outer conductor, a socket inner conductor, a socket middle insulator and socket clamping jaws; the outer conductor of the socket is a hollow cylinder, one end of the outer conductor is a horn-shaped guide conical surface end, and the large opening of the guide conical surface end faces outwards; the other end of the socket outer conductor is an assembling end; one end of the inner conductor of the socket is a jack with a groove being closed, and the other end of the inner conductor of the socket is an assembling end; the socket inner conductor is fixed in the socket outer conductor through the socket intermediate insulator, and the socket inner conductor is coaxial with the socket outer conductor; the socket jack catch is cylindrical, one end of the socket jack catch is an elastic jack catch with a split groove, a circle of boss is arranged on the inner wall of the elastic jack catch end, and the elastic jack catch end of the socket jack catch is outwards embedded into the socket outer conductor;

the adapter comprises an adapter outer conductor, an adapter inner conductor and an adapter intermediate insulator; the outer conductor of the adapter is a hollow cylinder, and one end of the outer conductor is provided with a groove clamped with the boss in the jack catch of the socket; the inner conductor of the adapter is a cylinder, and two ends of the inner conductor of the adapter are provided with contact pins which can be inserted into jacks of the inner conductor of the socket; the adapter inner conductor is coaxial with the adapter outer conductor, and the adapter inner conductor is fixed in the adapter outer conductor through the adapter intermediate insulator.

Further, the tolerance rf coaxial connector further comprises: a disc-shaped reed; the inner ring of the disc-shaped spring leaf is a conical spring leaf, and the outer ring can be clamped on a large opening at the end of the guide conical surface of the outer conductor of the socket; the inner aperture of the dish-shaped reed is the same as the aperture of the small opening at the end of the guide conical surface of the outer conductor of the socket.

Furthermore, the boss in the socket claw is an arc boss; the groove at one end of the outer conductor of the adapter is an arc-shaped groove.

Furthermore, the pin head of the pin at one end of the inner conductor of the adapter is spherical.

The utility model has the advantages that:

the utility model discloses to use the socket of two not isostructures originally to carry out structural unity, no longer distinguish the socket of the end of slipping into and the socket of chucking end, set the adapter both ends to the isostructure of difference and distinguish the chucking end and slip into, the product kind of messenger reduces, manufacturing cost reduces. The utility model discloses design into the structure of splitting the groove binding off with the jack of socket inner conductor, cooperation adapter inner conductor spherical contact pin syringe needle can allow the contact pin bigger angle the deflection in the plug and can not take place the damage, extension product life. The utility model discloses set up the socket jack catch that has the boss in the socket, when the recess of cooperation adapter can make the adapter take place to deflect, allow the adapter to have the wide-angle tolerance. The utility model discloses a dish reed of detachable assembly on chucking end socket for the adapter remains vertical concentric all the time under natural state, and has the automatic function of just returning, neither hinders the adapter and to inserting the deflection, can realize adapter natural centering again, has solved the problem that the skew influence was to inserting appearing under the adapter natural state.

Drawings

The features and advantages of the invention will be more clearly understood by reference to the accompanying drawings, which are schematic and should not be understood as imposing any limitation on the invention, in which:

FIG. 1 is a front view of an adapter in an embodiment of the present invention;

FIG. 2 is a cross-sectional view of an adapter in an embodiment of the invention;

FIG. 3 is a cross-sectional view of a receptacle according to an embodiment of the present invention;

FIG. 4 is a schematic view of the assembly of an embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is a perspective view of a disc-shaped spring in an embodiment of the present invention;

FIG. 7 is a schematic view of a dish-shaped spring plate assembled to a socket according to an embodiment of the present invention;

fig. 8 is a schematic view of a diverter in an embodiment of the present invention fitted into a socket with a disc-shaped spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

The embodiment of the utility model provides a tolerance radio frequency coaxial connector, include: the socket 1, the adapter 2 and the disc-shaped reed 3;

the socket 1 comprises a socket outer conductor 11, a socket inner conductor 12, a socket intermediate insulator 13 and socket claws 14;

the middle part of the socket outer conductor 11 is a hollow cylinder which is formed by processing brass and then electroplating, one end of the socket outer conductor is a horn-shaped guide conical surface end, the large opening of the guide conical surface end faces outwards, the other end of the socket outer conductor 11 is an assembly end, and a pin for inserting a circuit board is arranged on the assembly end; one end of the socket inner conductor 12 is provided with an insertion hole 121 which is closed along an axial slot, the insertion hole 121 is formed by electroplating after beryllium bronze processing heat treatment, and the other end of the socket inner conductor is provided with an assembly end for inserting a circuit board; the socket inner conductor 12 is fixed in the socket outer conductor 11 through a socket intermediate insulator 13, and the socket inner conductor 12 is coaxial with the socket outer conductor 11; the socket clamping jaw 14 is a cylinder-shaped plated body formed by beryllium bronze after processing and heat treatment, one end of the socket clamping jaw is an elastic clamping jaw which splits a groove along the axial direction, a circle of circular arc-shaped boss 141 is arranged on the inner wall of the elastic clamping jaw end, the elastic clamping jaw end of the socket clamping jaw 14 is outwards embedded into the socket outer conductor 11 during assembly, and the jack 121 at one end of the socket inner conductor 11 extends into the socket clamping jaw 14;

the adaptor 2 includes an adaptor outer conductor 21, an adaptor inner conductor 22, an adaptor intermediate insulator 23;

the outer conductor 21 of the adapter is a hollow cylinder formed by post-electroplating of brass machined parts, one end of the outer conductor is provided with an arc-shaped groove 211 which can be clamped with an arc-shaped boss in a jack catch, the other end of the outer conductor is a smooth cylindrical surface, and one end close to the arc-shaped groove 211 is provided with a fine groove 212 with a marked direction for indicating which end can be used as a clamping end; the adaptor inner conductor 22 is a cylinder which is formed by processing brass and then electroplating, and two ends of the adaptor inner conductor are provided with pins 221 which can be inserted into the jacks 121 of the socket inner conductor; the adaptor inner conductor 22 is coaxial with the adaptor outer conductor 21, and the adaptor inner conductor 22 is fixed in the adaptor outer conductor 21 through the adaptor intermediate insulator 23;

the inner ring of the disc-shaped reed 3 is a conical elastic sheet, the outer ring is a petal-shaped clamping ring formed by the elastic sheet which can be opened outwards, and the outer ring can be clamped on a large opening at the end of the guide conical surface of the outer conductor 11 of the socket; the inner aperture of the disc-shaped spring 3 is the same as the small aperture of the guiding conical surface end of the socket outer conductor 11.

The use method of the tolerance radio frequency coaxial connector comprises the following steps:

because the socket of the utility model is not used for the socket of the clamping end and the socket of the sliding-in end, one socket can be selected as the socket of the clamping end, after the disc-shaped reed is opened by the outer ring petal-shaped retainer ring, the disc-shaped reed is clamped on the large opening of the outer conductor guide conical surface end of the socket of the clamping end, the petal-shaped retainer ring can contract automatically after the clamping is good, the disc-shaped reed is prevented from loosening, the inner aperture of the disc-shaped reed is matched with the outer diameter of the adapter, the disc-shaped reed is coaxial with the outer conductor of the socket,

then one end of the adapter with the groove is used as a clamping end to coaxially penetrate through the disc-shaped reed to be inserted into the clamping end socket, a contact pin of the inner conductor of the adapter is inserted into a jack at one end of the inner conductor of the socket, the groove of the outer conductor of the adapter is clamped with a boss of a jack jaw, as shown in figures 3 and 4, the difference from the prior structure is that the diameter of an inner hole of the jack is larger than that of the contact pin matched with the inner hole, so that the jack is in a big-belly-shaped space, the space ensures that the contact pin can not damage the jack under the condition of large-angle deflection, as shown in figure 8, the arc-shaped boss, the disc-shaped reed and a contact point of the adapter on the jack jaw provide centripetal elasticity for the adapter after the adapter is inserted in place, two centripetal forces distributed along the axial direction can always keep the adapter to be vertical and coaxial with the socket, and the situation that the adapter and the socket are deflected under the natural state is avoided,

finally, one socket is selected as a socket at the sliding-in end for the other end of the adapter to slide in and be clamped,

after the opposite insertion is completed, if the adapter has deflection tolerance, a small part of the disc-shaped elastic sheet is deformed outwards and downwards due to the deflection of the adapter, so that the adapter can deflect normally, and after the opposite insertion and separation, the elastic sheet can be restored to be normal, so that the adapter can be maintained in a coaxial state with the socket again.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A tolerance radio frequency coaxial connector, comprising: a socket, an adaptor; the socket comprises a socket outer conductor, a socket inner conductor, a socket middle insulator and socket clamping jaws; the outer conductor of the socket is a hollow cylinder, one end of the outer conductor is a horn-shaped guide conical surface end, and the large opening of the guide conical surface end faces outwards; the other end of the socket outer conductor is an assembling end; one end of the inner conductor of the socket is a jack with a groove being closed, and the other end of the inner conductor of the socket is an assembling end; the socket inner conductor is fixed in the socket outer conductor through the socket intermediate insulator, and the socket inner conductor is coaxial with the socket outer conductor; the socket jack catch is cylindrical, one end of the socket jack catch is an elastic jack catch with a split groove, a circle of boss is arranged on the inner wall of the elastic jack catch end, and the elastic jack catch end of the socket jack catch is outwards embedded into the socket outer conductor;

2. The tolerance radio frequency coaxial connector of claim 1, further comprising: a disc-shaped reed; the inner ring of the disc-shaped spring leaf is a conical spring leaf, and the outer ring can be clamped on a large opening at the end of the guide conical surface of the outer conductor of the socket; the inner aperture of the dish-shaped reed is the same as the aperture of the small opening at the end of the guide conical surface of the outer conductor of the socket.

3. The tolerance radio frequency coaxial connector according to claim 1 or 2, wherein the boss in the receptacle jaws is a circular arc boss; the groove at one end of the outer conductor of the adapter is an arc-shaped groove.

4. The tolerance radio frequency coaxial connector of claim 1 or 2, wherein the pin head of the pin at one end of the inner conductor of the adaptor is spherical.