阅读说明：本技术 一种快插型低互调射频同轴连接器 (Quick-plugging type low-intermodulation radio frequency coaxial connector ) 是由 吉福山 于 2019-12-12 设计创作，主要内容包括：本发明公开了一种快插型低互调射频同轴连接器,包括插座和与该插座相互插接的插头,所述插头包括插头外导体、密封圈、弹性接触头、拆解环、压缩弹簧、插头绝缘子、以及插针；所述弹性接触头套设于该环形槽内,所述压缩弹簧设于环形槽和所述弹性接触头之间；所述拆解环套设于所述弹性接触头的外圈；在插座外导体的内壁设有与所述弹性接触头卡接的锁紧沟槽。本发明通过在压缩弹簧的作用下,弹性片的倒钩勾紧插座外导体内的锁紧沟槽,弹簧反向弹力带动插头外导体,使插头外导体电气基准面压紧插座电气基准面,并产生一定的正压力,保证插头插座电气基准面紧密结合,降低无源互调(PIM),满足产品低互调指标要求。(The invention discloses a quick-plugging type low-intermodulation radio frequency coaxial connector which comprises a socket and a plug, wherein the plug is mutually plugged with the socket and comprises a plug outer conductor, a sealing ring, an elastic contact head, a disassembling ring, a compression spring, a plug insulator and a contact pin; the elastic contact head is sleeved in the annular groove, and the compression spring is arranged between the annular groove and the elastic contact head; the disassembling ring is sleeved on the outer ring of the elastic contact head; and a locking groove clamped with the elastic contact head is arranged on the inner wall of the outer conductor of the socket. Under the action of the compression spring, the barb of the elastic sheet hooks the locking groove in the outer conductor of the socket tightly, the spring drives the outer conductor of the plug by reverse elasticity, so that the electrical reference surface of the outer conductor of the plug presses the electrical reference surface of the socket and generates a certain positive pressure, the electrical reference surfaces of the plug and the socket are ensured to be tightly combined, Passive Intermodulation (PIM) is reduced, and the requirement of low intermodulation index of the product is met.)

1. The utility model provides a low intermodulation radio frequency coaxial connector of type soon inserts, includes socket and the plug of pegging graft each other with this socket, its characterized in that: the plug comprises a plug outer conductor, a sealing ring, an elastic contact head, a disassembling ring, a compression spring, a plug insulator and a contact pin; the contact pin is arranged in the plug insulator, and the plug insulator is arranged in the plug outer conductor; the sealing ring is sleeved at the front end of the plug outer conductor; the rear end of the sealing ring is provided with an annular groove, the elastic contact head is sleeved in the annular groove, and the compression spring is arranged between the annular groove and the elastic contact head; the disassembling ring is sleeved on the outer ring of the elastic contact head; and a locking groove clamped with the elastic contact head is arranged on the inner wall of the outer conductor of the socket.

2. The fast-plug low intermodulation radio frequency coaxial connector of claim 1, wherein: the plug outer conductor is characterized in that an annular retainer ring is arranged at the rear end part of the plug outer conductor, and the annular groove is located in front of the annular retainer ring.

3. The fast-plug low intermodulation radio frequency coaxial connector of claim 1, wherein: the elastic contact head comprises an annular body, a plurality of elastic pieces are arranged at the front end of the annular body at equal intervals, and a conical inclined plane is arranged on the outer wall of the annular body.

4. The fast-plug low intermodulation radio frequency coaxial connector of claim 3, wherein: the front end of the elastic sheet is provided with a barb clamped with the locking groove.

5. The fast-plug low intermodulation radio frequency coaxial connector of claim 4, wherein: a concave opening is formed in the rear of the barb and connected with the conical inclined surface, and the disassembling ring is located behind the concave opening and used for adjusting the tightness of the elastic sheet.

6. The fast-plug low intermodulation radio frequency coaxial connector of claim 5, wherein: the inner wall of the front end of the disassembling ring is provided with an inner check ring, the inner check ring is positioned in the concave opening, and the tightness of the elastic sheet can be adjusted by moving the inner check ring at the displacement of the concave opening and the conical inclined plane.

7. The fast-plug low intermodulation radio frequency coaxial connector of claim 1, wherein: the front end of the plug outer conductor is provided with an annular sealing groove, and the sealing ring is tightly sleeved in the sealing groove.

8. The fast-plug low intermodulation radio frequency coaxial connector of claim 1, wherein: the compression spring is a spiral spring and is sleeved at the outer end of the annular groove.

9. The fast-plug low intermodulation radio frequency coaxial connector of claim 1, wherein: the socket comprises a socket outer conductor, a socket insulator arranged in the socket outer conductor and a jack arranged in the socket insulator.

10. The fast-plug low intermodulation radio frequency coaxial connector of claim 1, wherein: the locking groove is arranged on the inner wall of the front end of the outer conductor of the socket.

Technical Field

The invention relates to a radio frequency coaxial connector, in particular to a quick-plug type low-intermodulation radio frequency coaxial connector.

Background

Along with the development of the international communication industry and the requirement of a 5G network, the low intermodulation index of a radio frequency connector product is more and more emphasized to improve the anti-interference capability of signals, but from the passive intermodulation generation principle, the low intermodulation product requires that the connection end face is tightly jointed except for a plurality of factors such as materials, foreign matters and the like, so that the low intermodulation connector product is mostly installed in a thread mode at present to ensure that the joint end face has certain pressing force and is tightly jointed. However, the threaded connection mode of installation and disassembly seriously hinders the production efficiency, and each product needs to be screwed and connected and separated, which wastes a great deal of installation operation time.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a quick-plug type low-intermodulation radio frequency coaxial connector.

The technical scheme of the invention is as follows: the utility model provides a low intermodulation radio frequency coaxial connector of type soon inserts, includes socket and the plug of pegging graft each other with this socket, its characterized in that: the plug comprises a plug outer conductor, a sealing ring, an elastic contact head, a disassembling ring, a compression spring, a plug insulator and a contact pin; the contact pin is arranged in the plug insulator, and the plug insulator is arranged in the plug outer conductor; the sealing ring is sleeved at the front end of the plug outer conductor; the rear end of the sealing ring is provided with an annular groove, the elastic contact head is sleeved in the annular groove, and the compression spring is arranged between the annular groove and the elastic contact head; the disassembling ring is sleeved on the outer ring of the elastic contact head; and a locking groove clamped with the elastic contact head is arranged on the inner wall of the outer conductor of the socket.

Preferably, the rear end part of the plug outer conductor is provided with an annular retaining ring, and the annular groove is positioned in front of the annular retaining ring.

Preferably, the elastic contact head comprises an annular body, a plurality of elastic pieces are arranged at the front end of the annular body at equal intervals, and a conical inclined plane is arranged on the outer wall of the annular body.

Preferably, the front end of the elastic sheet is provided with a barb clamped with the locking groove.

Preferably, a concave opening is formed behind the barb and connected with the conical inclined surface, and the disassembling ring is located behind the concave opening and used for adjusting the tightness of the elastic sheet.

Preferably, the inner wall of the front end of the disassembling ring is provided with an inner retainer ring, the inner retainer ring is positioned in the concave opening, and the tightness of the elastic sheet can be adjusted by moving the inner retainer ring to displace between the concave opening and the conical inclined surface.

Preferably, an annular sealing groove is formed in the front end of the plug outer conductor, and the sealing ring is tightly sleeved in the sealing groove.

Preferably, the compression spring is a coil spring and is sleeved at the outer end of the annular groove.

Preferably, the socket includes a socket outer conductor, a socket insulator disposed within the socket outer conductor, and a receptacle disposed within the socket insulator.

Preferably, the locking groove is provided on an inner wall of the front end of the outer conductor of the socket.

The socket and the plug can realize a quick locking connection mode, under the action of the compression spring, the barb of the elastic sheet hooks the locking groove in the outer conductor of the socket, the spring drives the outer conductor of the plug by reverse elasticity, so that the electrical reference surface of the outer conductor of the plug presses the electrical reference surface of the socket and generates a certain positive pressure, the electrical reference surfaces of the plug and the socket are ensured to be tightly combined, Passive Intermodulation (PIM) is reduced, and the requirement of a product on low intermodulation index is met.

The present invention has the advantages of simple structure, convenient use, quick connection, and high reliability, and provides very low PIM performance with robust design and compact size.

Drawings

FIG. 1 is a schematic view of the socket of the present invention

FIG. 2 is an exploded view of the socket of the present invention

FIG. 3 is a schematic view of the structure of the plug of the present invention

FIG. 4 is an exploded view of the plug of the present invention

FIG. 5 is a schematic view of the present invention

Detailed Description

In order to make the technical means, technical features, objects and technical effects of the present invention easily understandable, the present invention is further described below with reference to the specific drawings.

As shown in fig. 1 to 5, a fast-plugging low intermodulation rf coaxial connector of the present invention comprises a socket 1 and a plug 2 plugged into the socket 1.

The socket 1 in this embodiment includes a socket outer conductor 11, a socket insulator 12 disposed in the socket outer conductor 11, and a receptacle 13 disposed in the socket insulator 12. A locking groove 111 for locking with the elastic contact 23 in the plug 2 is arranged on the inner wall of the front end of the outer conductor 11 of the socket.

The plug 2 in this embodiment includes a plug outer conductor 21, a seal ring 22, an elastic contact 23, a snap ring 24, a compression spring 25, a plug insulator 26, and a pin 27.

The contact pin 27 is arranged in the plug insulator 26, and the plug insulator 26 is arranged in the plug outer conductor 21; the sealing ring 22 is sleeved at the front end of the plug outer conductor 21; an annular groove 221 is provided at the rear end of the seal ring 22.

The elastic contact 23 is sleeved in the annular groove 221, and the compression spring 25 is arranged between the annular groove 221 and the elastic contact 23; the disassembling ring 24 is sleeved on the outer ring of the elastic contact head 23.

In this embodiment, the rear end portion of the plug outer conductor 21 is provided with an annular retaining ring 211, the annular retaining ring 211 can limit the displacement of the elastic contact 23 in the annular groove 221, the annular groove 221 is located in front of the annular retaining ring 211, and when the elastic contact 23 is sleeved on the outer ring of the annular groove 221, a certain gap is formed between the elastic contact and the annular groove 221.

Specifically, the elastic contact head 23 in this embodiment includes an annular body 231, a plurality of elastic pieces 232 are disposed at the front end of the annular body 231 at equal intervals, and a tapered inclined surface 235 is disposed on the outer wall of the annular body. A barb 233 clamped with the locking groove 111 is arranged at the front end of the elastic sheet 232. A concave opening 234 is arranged behind the barb 233 and is connected with a tapered inclined surface 235, and the disassembling ring 24 is arranged behind the concave opening 234 and is used for adjusting the tightness of the elastic sheet 232 so as to realize the state adjustment of the barb 233 and the locking groove 111, namely, the disassembling ring 24 is pushed backwards to realize the separation of the barb 233 and the locking groove 111.

In this embodiment, the inner wall of the front end of the disassembling ring 24 is provided with an inner retaining ring 241, the inner retaining ring 241 is located in the concave opening 234, and the tightness of the elastic piece 232 is adjusted by moving the displacement of the inner retaining ring 241 between the concave opening 234 and the tapered inclined surface 235, so as to separate the barb 233 from the locking groove 111.

In this embodiment, an annular sealing groove 212 is disposed at the front end of the plug outer conductor 21, and the sealing ring 22 is tightly sleeved in the sealing groove 212. When the plug is connected with the socket, the sealing ring 22 is tightly combined with the inner wall of the outer conductor 11 of the socket, so that the function of water and moisture prevention in the cavity is realized. The compression spring 25 in this embodiment is a coil spring, and is sleeved on the outer end of the annular groove 221.

The working principle of the invention is as follows:

1. quick-insertion connection

When the connector plug 2 is connected with the socket 1 in a quick-plugging manner, the elastic contact head 23 of the handheld connector plug is pushed into the inner cavity of the socket (the elastic contact head 23 drives the compression spring 25 to push the plug outer conductor 21 to slide into the hole along the slope of the inner wall of the socket outer conductor 11), the elastic sheet 232 at the front end of the elastic contact head 23 also slides into the hole along the slope of the port of the socket outer conductor 11, meanwhile, the elastic sheet 232 at the front end of the elastic contact head 23 is tightened along the slope, along with the insertion of the elastic contact head 23, the plug outer conductor 21 is guided to be in the axial direction by the hole wall of the hole of the socket outer conductor 11, the front end of the contact pin.

When the electrical reference surface of the plug outer conductor 21 moves to be attached to the electrical reference surface of the socket, the plug outer conductor 21 stops moving, the spring is compressed along with the continuous insertion of the elastic contact 23 until the barb 233 at the front end of the elastic contact 23 slides into the groove 111 of the socket outer conductor, and the outer conductor is conducted to realize the connection between the plug and the socket.

At this time, under the action of the spring elasticity, the barb 233 hooks the socket outer conductor groove 111 tightly, the compression spring 25 drives the plug outer conductor 21 by reverse elasticity, so that the electrical reference surface of the plug outer conductor 21 compresses the socket electrical reference surface, and a certain positive pressure is generated, thereby ensuring that the plug and the socket electrical reference surfaces are tightly combined, reducing Passive Intermodulation (PIM), and meeting the requirement of low intermodulation index of the product.

2. Rapid separation

When the plug and the socket are needed to be separated, the disassembling ring 24 slides along the direction far away from the socket, the step position of the inner wall of the disassembling ring 24 slides along the conical inclined plane 235 of the outer wall of the elastic contact head to enable the elastic sheet 232 to be shrunk, the barb 233 of the elastic sheet is shrunk to be smaller than the inner diameter of the front end of the groove 111 of the outer conductor of the socket, under the elastic action of the compression spring 25, the barb of the elastic sheet retreats from the groove, the disassembling ring 24 drives the elastic contact head 23, the elastic contact head 23 drives the plug outer conductor 21, the inner hole of the outer conductor 21 of the socket is retreated (the contact pin is also.

The socket and the plug can realize a quick locking connection mode, under the action of the compression spring, the barb of the elastic sheet hooks the locking groove in the outer conductor of the socket, the spring drives the outer conductor of the plug by reverse elasticity, so that the electrical reference surface of the outer conductor of the plug presses the electrical reference surface of the socket and generates a certain positive pressure, the electrical reference surfaces of the plug and the socket are ensured to be tightly combined, Passive Intermodulation (PIM) is reduced, and the requirement of a product on low intermodulation index is met.

The present invention has the advantages of simple structure, convenient use, quick connection, and high reliability, and provides very low PIM performance with robust design and compact size.

In summary, the embodiments of the present invention are merely exemplary and should not be construed as limiting the scope of the invention. All equivalent changes and modifications made according to the content of the claims of the present invention should fall within the technical scope of the present invention.