Bent coaxial connector

Abstract

The utility model discloses a bent coaxial connector, including straight type structure, tube body and coaxial line, the tail end of straight type structure is embedded in the tube body front end, straight type structure includes welding cup, first insulator, central pin, second insulator and outer conductor, welding cup includes the passage, said passage is straight-through shape, first insulator, central pin, second insulator and outer conductor. The coaxial line penetrates through the tube body and the channel to abut against the first insulator, one end of the center pin abuts against the first insulator, the other end of the center pin penetrates through the second insulator, and the coaxial line, the welding cup, the first insulator, the center pin and the second insulator are coaxially arranged. A straight-through welding cup structure is designed, so that the bending part of the connector can realize good impedance matching, and a better electrical performance index can be realized in a higher frequency range.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of connector, especially relates to a bend type radio frequency coaxial connector. BACKGROUND

[0002] In the application type of connector, there are usually 180-degree straight head and 90-degree elbow, especially the bend type connector needing wiring cable, most of which adopt the side hole of the tail end position of the connector center needle to make the cable and the connector center needle keep the vertical state, and the center needle and the outer conductor of the connector are welded, the impedance of the bending part is not easy to match, leading to impedance disconnection, and further, the electrical performance in the high frequency range (usually above 6GHz) is in a poor state.

[0003] At present, with the continuous increase of application frequency, the conventional structure has been more and more unable to meet the use demand, in order to meet the use demand of higher frequency, a bend type coaxial connector needs to be designed, which can make the bending part of the connector realize good impedance matching and realize better electrical performance index in a higher frequency range. UTILITY MODEL CONTENT

[0004] Based on the above technical problem, the utility model provides a bend type coaxial connector, which makes the bending part of the connector fully comply with the coaxial structure, and further realizes good impedance matching and better electrical performance index in a higher frequency range.

[0005] In order to realize the above purpose, the technical scheme adopted by the utility model is:

[0006] A bend type coaxial connector is provided, which comprises a straight type structure, a pipe body and a coaxial line, the tail end of the straight type structure is embedded in the front end of the pipe body, the straight type structure comprises a welding cup, a first insulator, a center needle, a second insulator and an outer conductor, the welding cup comprises a passage, the passage is in a straight-through shape, the coaxial line passes through the pipe body and the passage and abuts against the first insulator, one end of the center needle abuts against the first insulator, the other end of the center needle penetrates through the second insulator, and the coaxial line, the welding cup, the first insulator, the center needle and the second insulator are coaxially arranged.

[0007] Preferably, the welding cup, the first insulator, the center needle and the second insulator are arranged in the outer conductor.

[0008] Preferably, the front end of the welding cup is outwardly convex to form an abutting portion, and the abutting portion abuts against the inner wall of the outer conductor.

[0009] Preferably, the tail end of the outer conductor is outwardly concave to form a limiting portion, the tail end of the welding cup is outwardly convex to form a clamping portion, and the clamping portion is clamped in the limiting portion.

[0010] Preferably, a hole is formed on the side of the welding cup, and the hole is used for welding.

[0011] Preferably, the center needle is provided with an inner cavity, the coaxial line comprises a wire core, the wire core is fixed in the inner cavity through the first insulator, and a spring is arranged in the inner cavity.

[0012] Preferably, the wire core is fixed in the inner cavity in a soldering or dotting manner.

[0013] Preferably, the pipe body is a one-piece structure or a non-one-piece structure, and the coaxial line is bent in a range of 90 degrees in the pipe body.

[0014] Preferably, the straight-line segment coaxial line in the pipe body is fixed by soldering or without soldering.

[0015] Preferably, the pipe body is made of a non-metallic material.

[0016] The utility model discloses a bend coaxial connector, through design a straight -through -like welding cup structure, utilize the cable itself bendable characteristic, make wire material bend in the connector bending place, and the connector bending part each cross section is complete with the coaxial structure, avoided impedance mismatch, improved use frequency, kept better electric performance index. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is cross section structure schematic diagram of the utility model embodiment;

[0018] Fig. 2 It is whole structure schematic diagram of the utility model embodiment;

[0019] Fig. 3 It is welding cup cross section schematic diagram of the utility model embodiment;

[0020] The reference signs in the drawings of the specification include:

[0021] Straight structure - 1, welding cup - 11, pass - 111, abutment - 112, clamping - 113, hole - 114, first insulator - 12, center needle - 13, spring - 131, second insulator - 14, outer conductor - 15, limiting - 151, pipe body - 2, coaxial line - 3, wire core - 31. DETAILED DESCRIPTION

[0022] The embodiment of the present application provides a bent coaxial connector, a straight-through welding cup structure is arranged, the cable is bent at the bending part of the connector by using the bendable characteristic of the cable, each section of the bending part of the connector fully meets the coaxial structure, impedance mismatch is avoided, the use frequency is improved, and good electrical performance indexes are maintained; in addition, the pipe body is not used as an electrical conductor, non-metallic materials can be selected, and the purpose of reducing cost and increasing efficiency is achieved.

[0023] In order to make the above-mentioned purpose, characteristics and advantages of the utility model more obvious and easy to understand, the specific embodiment of the utility model is described in detail below in combination with the drawings. In the following description, a large number of specific details are set forth in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, therefore, the utility model is not limited by the specific implementation disclosed below.

[0024] As shown in Figs. 1 to 3 , the embodiment of the present application is as follows:

[0025] A bent coaxial connector, comprising a straight structure 1, a pipe body 2 and a coaxial line 3, the tail end of the straight structure 1 is embedded in the front end of the pipe body 2, the straight structure 1 comprises a welding cup 11, a first insulator 12, a center pin 13, a second insulator 14 and an outer conductor 15, the welding cup 11 comprises a passage 111, the passage 111 is straight-through, the coaxial line 3 passes through the pipe body 2 and the passage 111 and abuts against the first insulator 12, one end of the center pin 13 abuts against the first insulator 12, the other end of the center pin 13 penetrates through the second insulator 14, the coaxial line 3, the welding cup 11, the first insulator 12, the center pin 13 and the second insulator 14 are coaxially arranged, the section of the bending part of the connector fully meets the coaxial structure, and good impedance matching is realized, and good electrical performance indexes can be realized in a higher frequency range.

[0026] Further, the welding cup 11, the first insulator 12, the center pin 13 and the second insulator 14 are arranged in the outer conductor 15, the welding cup 11 is not stressed, which helps to maintain the coaxiality between the center pin 13 and the outer conductor 15 and the integrity of the insulator, a good coaxial structure can reduce the reflection of the signal in the transmission process, reduce the standing wave ratio, improve the efficiency and quality of signal transmission. The front end of the welding cup 11 is outwardly convex to form an abutting portion 112, which abuts against the inner wall of the outer conductor 15; the tail end of the outer conductor 15 is outwardly concave to form a limiting portion 151, and the tail end of the welding cup 11 is outwardly convex to form a clamping portion 113, which is clamped in the limiting portion 151, the welding cup 11 is not stressed in the transverse and longitudinal directions, which can improve the reliability and stability of the connector, reduce the failure and damage caused by external force, and reduce the maintenance workload of the connector during use, thereby reducing the maintenance cost and time.

[0027] Further, the welding cup 11 is provided with an opening 114 on the side surface, which is used for welding. The welding cup 11 is arranged in the outer conductor 15 and is not stressed, so that the welding point will not have stress concentration phenomenon due to external force during the welding process, and the welding point structure is more uniform and stable.

[0028] Further, the center pin 13 is provided with an inner cavity, and the coaxial line 3 includes a wire core 31, which is fixed in the inner cavity through the first insulator 12, so that the coaxial line 3 is more firmly fixed. The inner cavity is provided with a spring 131, which has the functions of floating and elastic contact, so as to improve the reliability and adaptability of the connector. The wire core 31 is fixed in the inner cavity in the form of soldering or dotting, both of which can effectively fix the wire core 31, reduce the looseness and displacement of the wire core 31 in the inner cavity, improve the reliability and service life of the connector, and at the same time, the stable wire core fixing mode helps to reduce the electromagnetic interference in the signal transmission process and improve the transmission quality of the signal.

[0029] Further, the pipe body 2 is of an integral structure or a non-integral structure. In this embodiment, the pipe body 2 is of a non-integral structure, which includes a main body and a tail pipe. The tail pipe can be pre-installed on the coaxial line. The main body is provided with an opening, which is relatively large. The coaxial line 3 can be flexibly installed in the main body. The coaxial line 3 is bent within a range of 90 degrees in the pipe body, which can realize that the cross section of the connector of the wire bending part completely conforms to the coaxial structure, realizes good impedance matching and better electrical indicators. In addition, the straight line segment coaxial line in the pipe body 2 can be directly fixed in the pipe body 2, and the coaxial line 3 will not rebound, or can be fixed by soldering. Under normal circumstances, the coaxial line 3 is directly inserted into the pipe body 2 by a non-soldering fixing mode, which can meet the stability of the connector and reduce the cost investment.

[0030] In addition, the bending position of the bending coaxial connector keeps each cross section coaxial, and the better electrical performance index in a higher frequency range can be kept, the pipe body 2 can not be used as an electrical conductor, and non-metallic materials can be selected, so that the cost can be reduced, and the purpose of reducing cost and increasing benefit can be achieved.

[0031] In conclusion, the bending coaxial connector provided by the utility model realizes good impedance matching by setting a straight-through welding cup structure, bending the wire at the bending position of the connector by using the bendable characteristics of the cable itself, and keeping each cross section of the bending part of the connector completely consistent with the coaxial structure, and the better electrical performance index in a higher frequency range can be realized.

[0032] The technical features of the above-described embodiments can be combined arbitrarily, and to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not contradict, they should be considered as the scope of the present disclosure.

[0033] The above-described embodiments only express the implementation of the utility model, the description is more specific and detailed, but it should not be understood as the limitation of the scope of the invention patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A bent coaxial connector, characterized in that, The device includes a straight structure, a tube, and a coaxial cable. The tail end of the straight structure is embedded in the front end of the tube. The straight structure includes a welding cup, a first insulator, a center pin, a second insulator, and an outer conductor. The welding cup includes a through-passage, which is straight. The coaxial cable passes through the tube and the through-passage and abuts against the first insulator. One end of the center pin abuts against the first insulator, and the other end of the center pin passes through the second insulator. The coaxial cable, the welding cup, the first insulator, the center pin, and the second insulator are coaxially arranged.

2. A bent coaxial connector according to claim 1, characterized in that, The welding cup, the first insulator, the center pin, and the second insulator are disposed in the outer conductor.

3. A bent coaxial connector according to claim 2, characterized in that, The front end of the welding cup protrudes outward to form an abutment portion, which abuts against the inner wall of the outer conductor.

4. A bent coaxial connector according to claim 3, characterized in that, The outer conductor has a concave end forming a limiting part, and the welding cup has a convex end forming a locking part, which is engaged with the limiting part.

5. A bent coaxial connector according to claim 4, characterized in that, The welding cup has an opening on its side, which is used for welding.

6. A bent coaxial connector according to claim 1, characterized in that, The center needle has an inner cavity, the coaxial cable includes a core wire, the core wire passes through the first insulator and is fixed in the inner cavity, and a spring is provided in the inner cavity.

7. A bent coaxial connector according to claim 6, characterized in that, The wire core is fixed to the inner cavity by soldering or dotting.

8. A bent coaxial connector according to claim 1, characterized in that, The tube body can be a one-piece structure or a non-one-piece structure, and the coaxial line is bent within a 90-degree range in the tube body.

9. A bent coaxial connector according to claim 8, characterized in that, The straight sections within the tube are either fixed with solder or not.

10. A bent coaxial connector according to any one of claims 1-9, characterized in that, The tube body is made of non-metallic material.

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