CN208820089U

CN208820089U - Radio frequency (RF) coaxial connector mechanical fixed structure

Info

Publication number: CN208820089U
Application number: CN201821688665.6U
Authority: CN
Inventors: 刘建龙; 潘伟豪
Original assignee: Delt Microwave Electronics (nanjing) Co Ltd
Current assignee: Delt Microwave Electronics (nanjing) Co Ltd
Priority date: 2018-10-17
Filing date: 2018-10-17
Publication date: 2019-05-03
Anticipated expiration: 2028-10-17

Abstract

Radio frequency (RF) coaxial connector mechanical fixed structure.It is related to microwave radio interconnection field more particularly to a kind of radio frequency (RF) coaxial connector being mechanically fixed.It provides that a kind of structure is simple, improves the radio frequency (RF) coaxial connector mechanical fixed structure of connection reliability.Including shell, dielectric and inner conductor；The shell has mesoporous, and the helical form flank of tooth is equipped in the mesoporous of the shell, and the dielectric has mesoporous, and the dielectric is pressed into the mesoporous of shell；The inner conductor includes ontology, and the front end of the ontology is successively arranged closing in section and zigzag thread segment, and the front end of the ontology is equipped with fluting, forms closing in section, the inner conductor is out of, closing in section protrudes into dielectric mesoporous.The utility model avoid it is traditional using barb or epoxy resin encapsulated structure there are processing difficulties, structure is complicated, high production cost, bad product electric property the problems such as.

Description

Radio frequency (RF) coaxial connector mechanical fixed structure

Technical field

The utility model relates to microwave radio interconnection field more particularly to a kind of radio frequency (RF) coaxial connectors being mechanically fixed.

Background technique

Radio frequency (RF) coaxial connector is connection component important in microwave interconnecting system, the electrical resistance of radio frequency (RF) coaxial connector It can be extremely important for whole system.According to coaxial line design theory, to guarantee that coaxial connector has a superior electricity Gas performance parameter, best bet are to allow the internal structure of connector to prolong axial to be always same diameter, guarantee that impedance is unchanged, But actually this point is difficult to accomplish in the Mechanical Reliability of connector.We always need to design various internal structures Fixed dielectric and inner conductor, usually the common approach is that in one side opening of outer housing and insulator side face drilling, then including Then the small diameter step that conductor is done above is fixed using epoxide-resin glue filling, or processed within the outer shell Barb or step, the annular knurl of the major diameter of face processing in the conductor, fix correlated parts with this.But it is either any Method is all biggish to change itself matched diameter inside connector, this with regard to the inevitable impedance variations for causing connector, Cause properties of product bad, coaxial complicated internal structure can also make troubles to the processing of part.

Utility model content

In view of the above problems, providing that a kind of structure is simple, the RF coaxial for improving connection reliability connects the utility model Connect device mechanical fixed structure.

The technical solution of the utility model is: including shell, dielectric and inner conductor；The shell has mesoporous, institute It states and is equipped with the helical form flank of tooth in the mesoporous of shell, the dielectric has mesoporous, the mesoporous of the dielectric indentation shell It is interior；

The inner conductor includes ontology, and the front end of the ontology is successively arranged closing in section and zigzag thread segment, and described The front end of body is equipped with fluting, forms closing in section,

The inner conductor is out of, closing in section protrudes into dielectric mesoporous.

The mesoporous of the shell is stepped hole, and the stepped hole has big stepped hole and small stepped hole, the spiral teeth Face is located at one end in small stepped hole far from big stepped hole.

The length of the helical form flank of tooth is the 7/10-9/10 of the length of small stepped hole.

Connection is interference fitted between the shell and dielectric, the company of interference fit between the inner conductor and dielectric It connects.

The utility model includes shell, dielectric and inner conductor, and the helical form flank of tooth, cylinder are equipped in the mesoporous of shell Shape dielectric is connected in the mesoporous of shell, and inner conductor outer surface is equipped with zigzag thread segment, penetrates into dielectric Mesoporous, three are reliably connected.

The utility model is by the mesoporous of shell and inner conductor part outer surface processes the flank of tooth, after making assembling parts It can closely cooperate and be fixed together, it is tired in the presence of processing to avoid traditional use barb or epoxy resin encapsulated structure Difficult, the problems such as structure is complicated, high production cost, bad product electric property.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model,

Fig. 2 is the installation diagram one of the utility model,

Fig. 3 is the installation diagram two of the utility model；

1 is shell in figure, and 11 be mesoporous, and 111 be big stepped hole, and 112 be small stepped hole, and 12 be the helical form flank of tooth,

2 be dielectric,

3 be inner conductor, and 31 be ontology, and 32 be closing in section, and 33 be zigzag thread segment, and 34 be fluting.

Specific embodiment

The utility model as shown in Figure 1-3, include shell 1, dielectric 2 and inner conductor 3；The shell has mesoporous 11, the mesoporous of the shell is interior to be equipped with the helical form flank of tooth 12, and the dielectric has mesoporous, and the dielectric is pressed into shell Mesoporous in；The helical form flank of tooth is set, increases surface roughness, is reliably fixed dielectric；

The inner conductor 3 includes ontology 31, and the front end of the ontology is successively arranged closing in section 32 and zigzag thread segment 33, The front end of the ontology is equipped with fluting 34, forms closing in section, reliably protrudes into dielectric convenient for inner conductor；

The mesoporous of the shell is stepped hole, and the stepped hole has big stepped hole 111 and small stepped hole 112, the spiral shell The rotation shape flank of tooth is located at one end in small stepped hole far from big stepped hole.

The length of the helical form flank of tooth is the 7/10-9/10 of the length of small stepped hole.In this way, being reserved in small stepped hole One section does not have the helical form flank of tooth, avoids damaging, in this way formation smooth surface, adapts it to the standard port requirement of SMA model.

The utility model is in order to which shell, dielectric and inner conductor to be tightly secured together, respectively in shell Design has the design of the local outer surface of the helical form flank of tooth and inner conductor to have zigzag thread segment in the focal length of hole, not using two kinds The same flank of tooth does the design methods such as annular knurl, barb instead of existing in the conductor.

When assembling, first dielectric cryogenic freezing is then pressed into shell, then penetrates inner conductor again, due to this Diameter design between three's part is all interference fit, so after inner conductor is pressed into after dielectric, dielectric Outer diameter can expand,

Dielectric will be inlayed on the helical form flank of tooth inside the shell in this way, meanwhile, it is reliably connected the saw in inner conductor On the flank of tooth of toothed thread section, achieve the purpose that retaining element, at the same reduce as best one can part in variation diametrically, protect Demonstrate,prove the electric property of connector entirety.

Claims

1. radio frequency (RF) coaxial connector mechanical fixed structure, including shell, dielectric and inner conductor；It is characterized in that, described outer Shell has mesoporous, and the helical form flank of tooth is equipped in the mesoporous of the shell, and the dielectric has mesoporous, the dielectric pressure Enter in the mesoporous of shell；

The inner conductor includes ontology, and the front end of the ontology is successively arranged closing in section and zigzag thread segment, the ontology Front end is equipped with fluting, forms closing in section,

2. radio frequency (RF) coaxial connector mechanical fixed structure according to claim 1, which is characterized in that the mesoporous of the shell For stepped hole, the stepped hole has big stepped hole and small stepped hole, and the helical form flank of tooth is located in small stepped hole far from big One end of stepped hole.

3. radio frequency (RF) coaxial connector mechanical fixed structure according to claim 2, which is characterized in that the helical form flank of tooth Length be small stepped hole length 7/10-9/10.

4. radio frequency (RF) coaxial connector mechanical fixed structure according to claim 1, which is characterized in that the shell and insulation It is interference fitted connection between medium, connection is interference fitted between the inner conductor and dielectric.