CN108767508A - A kind of N-type elbow bend type radio frequency (RF) coaxial connector - Google Patents

Abstract

The invention discloses an N-type right-angle bend type radio frequency coaxial connector. An L-shaped connector is formed by using two insulators to cooperate with two connecting inner conductors, and the first inner conductor and the second inner conductor are connected through threads to realize It ensures the stability of the connection, which is reliable and convenient, and can fully guarantee the size of the connector interface. The assembly operation is simple, and the yield and work efficiency are improved. The high-frequency electrical performance of the connector is superior. By adopting the L-shaped connector structure, it solves the problem that the inner conductor in the existing structure is difficult to meet the requirements no matter whether the inner conductor is bent directly or bent after splitting the groove. , and the high scrap rate of bending. The invention guarantees excellent high-frequency performance, requirements for environment resistance, requirements for connector interface size and convenient assembly, improves the yield of connector assembly, and improves work efficiency.

Description

An N-type right-angle bend radio frequency coaxial connector

technical field

The invention belongs to the technical field of radio frequency coaxial connectors, and in particular relates to an N-shaped right-angle bend radio frequency coaxial connector.

Background technique

The inner conductor structure of the conventional N-type right-angle bend connector mated with the coaxial cable can be divided into: the direct welding structure of the cable core wire, and the integral bending structure of the inner conductor of the connector. For cables with high frequency and low loss, those with higher requirements for high frequency indicators usually adopt the integrated bending structure of the inner conductor of the connector. However, since the inner conductor of the electrical connector is made of lead brass material, no matter whether the inner conductor is bent directly or bent after splitting, the size of the bent inner conductor is difficult to meet the requirements, and the scrap rate of bent very high.

Contents of the invention

The purpose of the present invention is to provide an N-type right-angle bend radio frequency coaxial connector to overcome the shortcomings of the prior art.

To achieve the above object, the present invention adopts the following technical solutions:

An N-type right-angle bend radio frequency coaxial connector, comprising a first inner conductor, a second inner conductor, a first insulator, a second insulator and an L-shaped shell, an L-shaped channel is arranged in the L-shaped shell, and the L-shaped shell A first insulator is provided in one end of the L-shaped channel, and a second insulator is provided in the other end of the L-shaped channel of the L-shaped housing. There are through holes between the first insulator and the second insulator, and the first insulator and the second insulator The first inner conductor and the second inner conductor are respectively arranged in the through holes, and the first inner conductor and the second inner conductor are contacted and fixedly connected; one end of the outer shell is provided with the first insulator and the outer end is provided with the connection of the first insulator for the clamp A screw sleeve, a through hole is provided in the middle of the connecting screw sleeve, and a contact head that is in contact with the first inner conductor is fixed in the through hole of the connecting screw sleeve; the end of the shell where the second insulator is installed is provided with a connecting bush for connecting an external cable and The connecting screw is used for the clamp to connect the bushing. The connecting screw is fixedly connected with the shell. The connecting bushing is provided with an axial connecting hole, and one end of the connecting bushing is in contact with the other end of the second inner conductor.

Further, the connecting bush is provided with a radial fixing hole, the external cable is placed in the axial through hole of the connecting bush, and the conductor of the external cable is fixed to the connecting bush by welding or screws.

Further, an insulating sheet is provided between the connecting bush and the end contact of the second insulator.

Further, the connecting bush is provided with an outer lug, which is press-fitted into the housing through a connecting screw, and the connecting screw is threadedly connected with the housing.

Further, an outer snap ring groove is provided on the outer side of the shell and one end of the connecting screw sleeve, and an inner snap ring groove is provided on the inner side of the connecting screw sleeve, and the shell and the connecting screw sleeve are connected by a snap ring, and the snap ring is arranged in the outer snap ring groove of the shell Inside, it fits with the inner snap ring groove of the connecting threaded sleeve.

Further, the connecting screw sleeve is provided with a lead sealing hole, which is fixed by a lead wire.

Further, a stepped boss is provided on the inner side of the end connecting the connecting screw sleeve and the shell, and a sealing ring is provided between the connecting screw sleeve and the end of the shell; the contact head is a sleeve structure, and one end of the contact head is provided with an outer lug, which contacts The outer lug of the head is fastened between the sealing ring and the shell.

Further, one end of the first inner conductor in contact with the second inner conductor is provided with a radial threaded through hole, one end of the second inner conductor is provided with an external thread, and the second inner conductor and the radial threaded through hole of the first inner conductor are threaded connect.

Further, one end of the first insulator is in contact with one end of the second insulator, and the inner bay side of the end of the first insulator in contact with the second insulator is provided with a wedge.

Further, a conductive connecting body is provided in the through hole of the second insulator, and the conductive connecting body is inserted and contacted with the second inner conductor, and one end of the connecting bush is inserted into the conductive connecting body.

Compared with the prior art, the present invention has the following beneficial technical effects:

The present invention is an N-type right-angle bend radio-frequency coaxial connector, which uses two insulators to cooperate with two connecting inner conductors to form an L-shaped connector, and uses the first inner conductor and the second inner conductor to connect through threads to realize the connection The stability of the device is reliable and convenient, and it can fully guarantee the size of the connector interface. The assembly operation is simple, which improves the yield and work efficiency; The high-frequency electrical performance is superior. By adopting the L-shaped connector structure, it solves the problem that the size of the inner conductor after bending is difficult to meet the requirements no matter whether the inner conductor is bent directly or bent after splitting the groove in the existing structure, and The problem of high scrap rate of bending. The invention guarantees excellent high-frequency performance, requirements for environment resistance, requirements for connector interface size and convenient assembly, improves the yield of connector assembly, and improves work efficiency.

Further, the screw sleeve is provided with a lead sealing hole, which is fixed by a lead wire to improve connection reliability.

Further, an outer snap ring groove is provided on the outer side of the shell and one end of the connecting screw sleeve, and an inner snap ring groove is provided on the inner side of the connecting screw sleeve, and the shell and the connecting screw sleeve are connected by a snap ring, and the snap ring is arranged in the outer snap ring groove of the shell Inside, it fits with the inner snap ring groove of the connecting screw sleeve; the shell and the connecting screw sleeve can rotate relative to each other, ensuring that the direction can be switched at will during connection without damaging the inner conductor structure.

Further, a wedge is provided on the inner side of the end where the first insulator contacts the second insulator, so as to ensure that the inner side of the end where the first insulator contacts the second insulator is a right-angle sealing structure.

Further, the contact head is a sleeve structure, and one end of the contact head is provided with an outer lug, and the outer lug of the contact head is fixed between the sealing ring and the housing, thereby ensuring the installation stability of the contact head.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

Fig. 2 is a schematic diagram of the installation and connection of lightweight cables according to the present invention.

Among them, 1. The first inner conductor, 2. The second inner conductor, 3. The conductive connecting body, 4. The first insulator, 5. The second insulator, 6. The insulating sheet, 7. The contact head, 8. The sealing ring, 9. Snap ring, 10, shell, 11, connection bushing, 12, connection screw, 13, connection screw sleeve, 14, external cable.

Detailed ways

The present invention is described in further detail below in conjunction with accompanying drawing:

As shown in Fig. 1 and Fig. 2, an N-type right-angle bend radio frequency coaxial connector includes a first inner conductor 1, a second inner conductor 2, a first insulator 4, a second insulator 5 and an L-shaped shell 10, The L-shaped casing 10 is provided with an L-shaped passage, and the L-shaped passage of the L-shaped casing 10 is provided with a first insulator 4 in one end of the L-shaped passage, and the second insulator 5 is provided in the other end of the L-shaped passage of the L-shaped casing 10. There are through holes in the middle of the insulator 4 and the second insulator 5, the first inner conductor 1 and the second inner conductor 2 are respectively arranged in the through holes of the first insulator 4 and the second insulator 5, and the first inner conductor 1 and the second inner conductor The inner conductor 2 is contacted and fixedly connected; the outer end of the shell 10 is provided with the first insulator 4, and the outer end is provided with a connecting screw sleeve 13 for clamping the first insulator 4, and a through hole is arranged in the middle of the connecting screw sleeve 13, and the connecting screw sleeve 13 is connected A contact head 7 that is in contact with the first inner conductor is fixed in the hole; one end of the shell 10 where the second insulator 5 is installed is provided with a connecting bush 11 for connecting an external cable and a connecting screw 12 for connecting the bushing 11 with a clamp. The connecting screw 12 is fixedly connected with the shell 10 , the connecting bush 11 is provided with an axial connecting hole, and one end of the connecting bush 11 is in contact with the other end of the second inner conductor 2 .

The connecting bush 11 is provided with a radial fixing hole, the external cable is placed in the axial through hole of the connecting bush 11, the conductor is in contact with the connecting bush 11, and is fixed to the connecting bush 11 by welding or screws;

An insulating sheet 6 is provided between the connecting bush 11 and the end of the second insulator 5; a conductive connecting body 3 is provided in the through hole of the second insulator 5, and the conductive connecting body 3 is inserted and connected with the second inner conductor 2, and the connecting lining One end of the sleeve 11 is inserted into the conductive connecting body 3, so that the connecting bush 11 is electrically connected to the second inner conductor 2; the stability of the connection is ensured; Insert into the conductive connecting body 3;

The connecting bush 11 is provided with an outer lug, which is press-fitted into the casing 10 through the connecting screw 12, and the connecting screw 12 is threadedly connected with the casing 10.

The outer side of one end of the housing 10 and the connecting screw sleeve 13 is provided with an outer snap ring groove, and the inner side of the connecting screw sleeve 13 is provided with an inner snap ring groove. In the outer snap ring groove of the outer shell, it is matched with the inner snap ring groove of the connecting screw sleeve 13; the shell 10 and the connecting screw sleeve 13 can be rotated relatively to ensure that the direction can be switched at will during connection;

A stepped boss is provided on the inner side of one end of the connecting screw sleeve 13 connected to the housing 10, and a sealing ring 8 is provided between the connecting screw sleeve 13 and the end of the housing 10; the contact head 7 is a sleeve structure, and one end of the contact head 7 is provided with an outer Lugs, the outer lugs of the contact head 7 are clamped between the sealing ring 8 and the housing 10, thereby ensuring the installation stability of the contact head 7;

One end of the first inner conductor 1 in contact with the second inner conductor 2 is provided with a radially threaded through hole, one end of the second inner conductor 2 is provided with an external thread, and the second inner conductor 2 and the first inner conductor 1 have a radially threaded through hole by threaded connections;

One end of the first insulator 4 is in contact with one end of the second insulator 5, and the inner side of the first insulator 4 and the second insulator 5 are provided with a wedge to ensure that the inner side of the first insulator 4 and the second insulator 5 are at right angles. sealed structure;

The connecting screw sleeve 13 is provided with a lead sealing hole, which is fixed by a lead wire; the connection reliability is improved.

The shell 10 is made of stainless steel.

Below in conjunction with accompanying drawing, structural principle of the present invention and operation step are further described:

When in use, first assemble the first insulator 4 and the second insulator 5 to both ends of the housing 10 respectively, then put the first inner conductor 1 into the first insulator 4, and then clamp the connecting nut 13 on the At the end of the housing 10, a sealing ring 8 is clamped in the middle, and then the second inner conductor 2 is loaded into the second insulator 5, and then fixedly connected with the radial through hole of the first inner conductor 1, and then the shielding of the external cable 14 The layer and the connecting bushing 11 are welded firmly, and the conductor of the external cable is welded to the conductive connecting body 3, and then the conductive connecting body 3 is pressed into the second insulator 5 to contact the second inner conductor 2, and then the connecting bushing 11 Put it into the shell 10, and fix the connection through the connecting screw 12 to complete the connection of the cable. The structure of the device is simple. By adopting the L-shaped connector structure, it solves the problem that the inner conductor in the existing structure is difficult to meet the requirements no matter whether the inner conductor is directly bent or bent after splitting, and the size of the inner conductor after bending is difficult to meet the requirements. In order to solve the problem of high scrap rate, two insulators are used to cooperate with two connecting inner conductors to form an L-shaped connector, and the first inner conductor and the second inner conductor are connected by threads to realize the stability of the connection, which is both reliable and reliable. convenient. And it can completely guarantee the size of the connector interface, the assembly operation is simple, and the yield and work efficiency are improved; the inner conductor is still an integrated structure after assembly, which ensures the superior high-frequency electrical performance of the entire connector, making the high-frequency voltage standing wave Ideal, which cannot be achieved by the direct welding structure of ordinary cable core wires. Because the stainless steel material is used in the connection shell of the novel connector, the environmental resistance reliability of the connector is improved. The screw sleeve is provided with a lead seal hole, which is fixed by a lead wire to improve connection reliability.

To sum up, the present invention ensures excellent high-frequency performance, requirements for environmental resistance, requirements for interface size of the connector, and convenient assembly, improves the yield of connector assembly, and improves work efficiency.

Claims (10)

1. a kind of N-type elbow bend type radio frequency (RF) coaxial connector, which is characterized in that including the first inner wire (1), the second inner wire (2), the first insulator (4), the second insulator (5) and L-type shell (10), L-type shell (10) is interior to be equipped with L-type passage, L-type shell (10) it is equipped with the first insulator (4) in L-type passage one end channel, is equipped in the L-type passage other end channel of L-type shell (10) It is equipped with through-hole, the first insulator (4) and second among second insulator (5), the first insulator (4) and the second insulator (5) It is respectively equipped with the first inner wire (1) and the second inner wire (2) in the through-hole of insulator (5), is led in the first inner wire (1) and second Body (2) contact is fixedly connected；One end outer end that shell (10) is equipped with the first insulator (4) is equipped with for the first insulator of clip (4) connection swivel nut (13) is equipped with through-hole among connection swivel nut (13), be fixed in the through-hole of connection swivel nut (13) with first in The contact head (7) that conductor connects；One end that shell (10) installs the second insulator (5) is equipped with for connecting external cable Connecting bushing (11) and the attachment screw (12) for being used for clamp connection bushing (11), attachment screw (12) are fixed with shell (10) Connection, connecting bushing (11) are equipped with axial connecting hole, connecting bushing (11) one end and the second inner wire (2) another end in contact.

2. a kind of N-type elbow bend type radio frequency (RF) coaxial connector according to claim 1, which is characterized in that connecting bushing (11) it is equipped with radially fixed hole, external cable is positioned in the axially extending bore of connecting bushing (11), the electric conductor of external cable It is fixed by welding or screw and connecting bushing (11).

3. a kind of N-type elbow bend type radio frequency (RF) coaxial connector according to claim 1, which is characterized in that connecting bushing (11) insulating trip (6) is equipped between being contacted with the second insulator (5) end.

4. a kind of N-type elbow bend type radio frequency (RF) coaxial connector according to claim 1, which is characterized in that connecting bushing (11) it is equipped with outer lug, is press-fitted in shell (10) by attachment screw (12), attachment screw (12) passes through with shell (10) It is threadedly coupled.

5. a kind of N-type elbow bend type radio frequency (RF) coaxial connector according to claim 1, which is characterized in that shell (10) with Connect swivel nut (13) one end outside be equipped with wild card annular groove, connection swivel nut (13) inside be equipped with interior annular groove, shell (10) with It connects swivel nut (13) to connect by snap ring (9), snap ring (9) is set in the wild card annular groove of shell (10), and connect swivel nut (13) Interior annular groove cooperation.

6. a kind of N-type elbow bend type radio frequency (RF) coaxial connector according to claim 5, which is characterized in that connection swivel nut (13) it is provided with lead seal hole on, is fixed by galvanized wire.

7. a kind of N-type elbow bend type radio frequency (RF) coaxial connector according to claim 1, which is characterized in that connection swivel nut (13) it is equipped with ladder boss on the inside of the one end being connect with shell (10), is equipped between connection swivel nut (13) and shell (10) end close Seal (8)；Contact head (7) is tube-in-tube structure, and one end of contact head (7) is equipped with outer lug, and the outer lug of contact head (7) is fastened in Between sealing ring (8) and shell (10).

8. a kind of N-type elbow bend type radio frequency (RF) coaxial connector according to claim 1, which is characterized in that the first inner wire (1) one end contacted with the second inner wire (2) on is equipped with radial tapped through hole, and the second inner wire (2) one end is equipped with external screw thread, the Two inner wires (2) are connected through a screw thread with the radial tapped through hole of the first inner wire (1).

9. a kind of N-type elbow bend type radio frequency (RF) coaxial connector according to claim 1, which is characterized in that the first insulator (4) one end and the second insulator (5) end thereof contacts, one end inner bay side that the first insulator (4) is contacted with the second insulator (5) It is equipped with wedge mouth.

10. a kind of N-type elbow bend type radio frequency (RF) coaxial connector according to claim 1, which is characterized in that the second insulator (5) conduction connector (3) is equipped in through-hole, conduction connector (3) is inserted into the second inner wire (2) and connects, connection lining The one end for covering (11) is inserted into conduction connector (3).