CN106229773A - A kind of Novel coaxial contact - Google Patents

Abstract

The invention discloses a new type of coaxial contact, comprising: a coaxial pin and a coaxial jack; the coaxial pin includes a front shell of the pin, a rear shell of the pin, an insulator, an inner jack and a crimping ring Ⅰ; the coaxial jack includes the front shell of the jack, the rear shell of the jack, the insulator before the pin, the insulator behind the pin, the inner pin and the crimping ring Ⅱ; the invention has simple structure, stable performance, and reduces the difficulty of processing , which improves the assembly operability of the contacts, meets the requirements of the J599 series of coaxial connectors, and the butt joint length meets the standard requirements; the rear shell of the socket and the rear shell of the pin are equipped with a threaded structure to improve the ease of assembly. sex. The product structure is designed through theoretical calculations, which can realize the transmission of video signals with a characteristic impedance of 75Ω.

Description

A new type of coaxial contact

technical field

The invention relates to the fields of radio frequency signal transmission, coaxial contact pieces, and coaxial connectors, in particular to a contact piece used in coaxial connectors, which is applied to the fields of signal transmission of display devices, high-frequency broadband signal transmission, and the like.

Background technique

In order to realize the J599 series connectors to realize the transmission of video signals with a characteristic impedance of 75Ω, a new type of coaxial contact needs to be provided, and the performance and assembly operability need to be improved.

Contents of the invention

The purpose of the present invention is to provide a new type of coaxial contact, which can effectively solve the above problems.

The technical solution of the present invention is: a new type of coaxial contact, including: a coaxial pin 1 and a coaxial socket 2;

The coaxial pin 1 includes a pin front housing 11, a pin rear housing 12, an insulator 13, an inner socket 14 and a crimping ring I 15; the front outer surface of the rear housing 12 is provided with an outer Thread, the inner surface of the rear part of the front pin housing 11 is provided with internal threads, the insulator 13 is arranged inside the front pin housing 11 and passes through the boss I11a on the inner surface of the front housing 11 and the front housing of the pin 11 cooperates with the thread of the pin rear housing 12 for axial positioning, the inner insertion hole 14 is set inside the insulator 13, and the crimping ring I15 is pressed on the rear part of the pin rear housing 12;

The coaxial jack 2 includes a front housing 21, a rear housing 22, an insulator 23 before a pin, an insulator 24 after a pin, an inner pin 25 and a crimping ring II 26; The outer surface of the front part of the body 22 is provided with external threads, the inner surface of the rear part of the front housing 21 of the jack is provided with internal threads, the front insulator 23 of the insertion pin and the rear insulator 24 of the insertion pin are arranged front and rear and are arranged on the front housing of the jack 21, the pin rear insulator 24 is axially positioned through the boss II 21a on the inner surface of the jack front housing 21 and the screw fit between the jack front housing 21 and the jack rear housing 22, and the pin front insulator 23 is axially positioned through the boss III 21b on the inner surface of the front housing 21 of the jack and the insulator 24 behind the pin, the inner pin 25 is arranged inside the insulator 23 before the pin and the insulator 24 behind the pin, and the crimping ring II 26 is press-set on the rear part of the housing 22 behind the socket.

Preferably, a chamfer 21c is provided on the front inner surface of the front casing 21 of the jack.

The present invention has the following beneficial effects:

The invention has simple structure and stable performance, reduces the difficulty of processing, improves the assembly operability of the contact piece, meets the use requirements of J599 series coaxial connectors, and the butt joint length meets the standard requirements; the rear shell of the socket and the rear shell of the pin All are equipped with thread structure to improve the ease of assembly. The product structure is designed through theoretical calculations, which can realize the transmission of video signals with a characteristic impedance of 75Ω.

Description of drawings

Fig. 1 is the structural representation of coaxial pin in the present invention;

Fig. 2 is the structural representation of coaxial jack in the present invention;

In the figure: 1, coaxial pin; 11, front housing of pin; 11a, boss I; 12, rear housing of pin; 13, insulator; 14, inner jack; 15, crimping ring I; 2 , coaxial jack; 21, front shell of jack; 21a, boss II; 21b, boss III; 21c, chamfering; 22, rear shell of jack; 23, front insulator of pin; 24, pin Rear insulator; 25, inner pin; 26, crimping ring II.

detailed description

The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in Figures 1 and 2, a new type of coaxial contact includes: a coaxial pin 1 and a coaxial socket 2;

The coaxial pin 1 includes a pin front housing 11, a pin rear housing 12, an insulator 13, an inner socket 14 and a crimping ring I 15; The inner surface of the rear part of the front housing 11 is provided with internal threads, and the insulator 13 is arranged inside the front housing 11 of the pins and passes through the boss I11a on the inner surface of the front housing 11 of the pins, the front housing 11 of the pins and the rear housing 12 of the pins The thread fits for axial positioning, the inner socket 14 is set inside the insulator 13, and the crimping ring I15 is pressed on the rear part of the housing 12 after the pin;

The coaxial jack 2 includes a jack front shell 21, a jack rear shell 22, an insulator 23 before a pin, an insulator 24 behind a pin, an inner pin 25 and a crimping ring II 26; the front part of the rear shell 22 of the jack The outer surface is provided with external threads, and the inner surface of the rear part of the front shell 21 of the jack is provided with internal threads. Axial positioning is carried out through the boss II21a on the inner surface of the front housing 21 of the jack and the screw fit between the front housing 21 and the rear housing 22 of the jack, and the front insulator 23 of the insertion pin passes through the boss on the inner surface of the front housing 21 of the jack. III 21b and the rear insulator 24 of the pin are positioned axially, the inner pin 25 is arranged inside the insulator 23 before the pin and the insulator 24 behind the pin, and the crimping ring II 26 is pressed on the rear part of the rear housing 22 of the jack, and the front of the jack The front inner surface of the housing 21 is provided with chamfers 21c.

When the coaxial pin 1 is docked with the coaxial socket 2 , it is guided by the chamfer 21 c of the socket front housing 21 , and the inner pin 25 is docked with the inner socket 14 . Since the signal transmission of the coaxial contact is similar to the transmission of the coaxial line, the radio frequency signal cannot be transmitted with low loss in the metal, so the outer shell and the inner shell are both metal, and the insulator in the middle realizes the signal transmission. Both the socket rear housing 22 and the pin rear housing 12 are provided with threaded structures to improve the ease of assembly. Both the inner pin 25 and the inner jack 14 are welding type, and the coaxial cable can be welded to the rear end of the inner pin 25 and the inner jack 14; the crimping ring I15 and the crimping ring II26 are used to connect the shielding layer of the wire Pressing on the pin rear housing 12 and the socket rear housing 22, the connection between the coaxial cable and the contact is realized.

The invention has simple structure and stable performance, reduces the difficulty of processing, improves the assembly operability of the contact piece, meets the use requirements of J599 series coaxial connectors, and the butt joint length meets the standard requirements; the rear shell of the socket and the rear shell of the pin All are equipped with thread structure to improve the ease of assembly. The product structure is designed through theoretical calculations, which can realize the transmission of video signals with a characteristic impedance of 75Ω.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention shall fall within the protection scope of the present invention.

Claims (2)

1. a Novel coaxial contact, it is characterised in that including: coaxial pole (1) and coaxial jack (2)；

Described coaxial pole (1) include contact pin procapsid (11), contact pin back casing (12), insulator (13), internal plug seat (14) and Crimp rings I (15)；Described contact pin back casing (12) forward outer surface is provided with external screw thread, table in described contact pin procapsid (11) rear portion Face is provided with female thread, and it is internal and convex by contact pin procapsid (11) inner surface that contact pin procapsid (11) is located at by described insulator (13) Platform I (11a) and contact pin procapsid (11) axially position with the threaded engagement of contact pin back casing (12), described internal plug seat (14) Being located at insulator (13) internal, described crimp rings I (15) pressure is located at contact pin back casing (12) rear portion；

Described coaxial jack (2) includes before jack procapsid (21), jack back casing (22), contact pin after insulator (23), contact pin Insulator (24), interior contact pin (25) and crimp rings II (26)；Described jack back casing (22) forward outer surface is provided with external screw thread, institute Stating jack procapsid (21) rear inner surface and be provided with female thread, before described contact pin, after insulator (23) and contact pin, insulator (24) is front Rear setting is also located at jack procapsid (21) inside, and after described contact pin, insulator (24) is convex by jack procapsid (21) inner surface Platform II (21a) and jack procapsid (21) axially position with the threaded engagement of jack back casing (22), before described contact pin absolutely Edge body (23) is axially positioned by insulator (24) after jack procapsid (21) inner surface boss III (21b) and contact pin, institute Stating interior contact pin (25), to be located at before contact pin insulator (24) after insulator (23) and contact pin internal, and described crimp rings II (26) pressure is located at Jack back casing (22) rear portion.

2. according to a kind of Novel coaxial contact described in claim 1, it is characterised in that described jack procapsid (21) is anterior Inner surface is provided with chamfering (21c).