CN106711632A - Radio-frequency cable component for space navigation - Google Patents

Abstract

The invention discloses a radio frequency cable assembly for aerospace, comprising: a radio frequency coaxial cable, a first radio frequency connector and a second radio frequency connector arranged at both ends of the radio frequency coaxial cable, and a mark wrapped on the outside of the radio frequency coaxial cable Shrink sleeve; the first radio frequency connector includes: pins whose center lines are on the same axis, a first insulator, a press sleeve, a second insulator, a welding sleeve, a fastening nut and a housing; the first insulator and the second insulator are respectively Set on the pin head and pin tail of the pin; the center hole of the pin is welded to the inner core of the radio frequency coaxial cable; the pressure sleeve is set between the second insulator and the inner wall of the housing; the welding sleeve is coaxial with the radio frequency One end of the cable is sleeved and welded; the fastening nut is sleeved on the welding sleeve. The radio frequency cable assembly for spaceflight of the invention satisfies the requirements for transmission of microwave signals in high and low temperature sudden changes, high radiation space environment and vacuum state, and improves the performance and reliability of the whole antenna system.

Description

A radio frequency cable assembly for aerospace

technical field

The invention belongs to the technical field of microwave radio frequency passive devices, in particular to a radio frequency cable assembly for aerospace.

Background technique

Because the existing K-type 2.92 cable assembly adopts the traditional cable assembly structure, there is no limit design for the change of the end face of the cable insulation layer under alternating temperature, and the insulation material is mostly selected from materials with low dielectric constant and low physical properties, which are resistant to mechanical The performance and radiation resistance are poor, so it cannot meet the requirements for transmitting microwave signals in high and low temperature mutations, high radiation space environment and vacuum state, and it is easy to cause deterioration of microwave transmission parameters under high frequency vibration and high and low temperature alternation The phenomenon affects the communication link transmission and reduces the reliability of the entire product. Therefore, there is an urgent need to design a cable assembly that can meet the requirements for transmitting microwave signals in high and low temperature mutations, high radiation space environments, and vacuum conditions, so as to improve the performance and reliability of the entire antenna system.

Contents of the invention

The technical problem of the present invention is to overcome the deficiencies of the prior art and provide a radio frequency cable assembly for aerospace, which can meet the requirements of high and low temperature mutations, high radiation space environment and microwave signal transmission in a vacuum state, so as to improve the performance of the entire antenna system and reliability.

In order to solve the above technical problems, the present invention discloses a radio frequency cable assembly for aerospace, including: a first radio frequency connector (100) and a second radio frequency connector (200) with the same structure, and a radio frequency coaxial cable (300) and mark the shrink sleeve (400); the two ends of the radio frequency coaxial cable (300) are respectively connected with the first radio frequency connector (100) and the second radio frequency connector (200); the mark shrink sleeve (400) wrapped on the outside of the radio frequency coaxial cable (300);

Wherein, the first radio frequency connector (100) includes: a pin (1) whose center line is on the same axis, a first insulator (2), a pressing sleeve (3), a second insulator (4), a welding sleeve (5), fastening nut (6) and housing (7);

The pin (1) comprises: a pin head (11) and a pin tail (12) whose diameter increases step by step, and a central hole (13) arranged on the pin tail (12);

The first insulator (2) is sleeved on the pin head (11);

The second insulator (4) is sleeved on the pin tail (12);

The central hole (13) is welded to the inner core of the radio frequency coaxial cable (300);

The press sleeve (3) is arranged between the second insulator (4) and the inner wall of the housing (7);

The welding sleeve (5) is welded with one end of the radio frequency coaxial cable (300);

The fastening nut (6) is set on the welding sleeve (5);

The pin (1), the first insulator (2), the pressure sleeve (3), the second insulator (4), the welding sleeve (5) and the fastening nut (6) are located inside the housing (7) cavity.

In the above radio frequency cable assembly for aerospace, the first insulator (2) includes: an annular boss portion (21) and a flange portion (23) connected in sequence;

The fastening nut (6) comprises: a nut first end portion (61) and a nut second end portion (62) arranged in sequence; wherein, the nut first end portion (61) is provided with an external thread, the A first step (63) and a second step (64) are provided inside the first end portion (61) of the nut;

The welding sleeve (5) comprises: a welding sleeve first end portion (51) and a welding sleeve second end portion (52) arranged in sequence, and an inner ring arranged at the welding sleeve second end portion (52) slot (53);

The housing (7) comprises: a cylindrical portion (71) with gradually increasing diameter, a first stepped portion (72) and a second stepped portion (73) arranged in sequence on the outside, and a sequentially arranged inside with successive diameters The enlarged first cavity (74), the second cavity (75), the third cavity (76) and the fourth cavity (77), and the formed between the first cavity (74) and the second cavity (75) The first stepped surface (78), the second stepped surface (79) formed between the second cavity (75) and the third cavity (76), and the front end protruding ring arranged on the cylindrical part (71) (712).

In the above radio frequency cable assembly for aerospace, the first insulator (2) is arranged in the first chamber (74) of the casing (7); wherein, the outer wall of the first insulator (2) is in contact with the The cavity wall of the first cavity (74) is in contact, and the flange portion (23) of the first insulator (2) abuts against the first stepped surface (78) of the casing (7);

The pressure sleeve (3) is arranged in the second cavity (75) of the housing (7); wherein, the outer wall of the pressure sleeve (3) is in contact with the cavity wall of the second cavity (75), The bottom end of the pressing sleeve (3) abuts against the second stepped surface (79) of the housing (7), and the inner cavity wall of the pressing sleeve (3) and the pin tail (12) forming the first air segment;

The second insulator (4) is arranged in the second cavity (75) of the housing (7), between the pressing sleeve (3) and the pin (1); wherein, the second The outer wall of the insulator (4) is in contact with the inner cavity wall of the pressure sleeve (3); the bottom of the second insulator (4) abuts against the second stepped surface (79) of the housing (7).

In the above radio frequency cable assembly for aerospace, the welding sleeve (5) is arranged in the third cavity (76) and the fourth cavity (77) of the housing (7); wherein, the first end of the welding sleeve The front end surface of the part (51) is in contact with the second step surface (79) of the housing (7) and the tail of the pressure sleeve (3) to limit the position;

The nut first end (61) of the fastening nut (6) is set in the fourth cavity (77) of the housing (7); wherein, the cavity wall of the fourth cavity (77) is set There is an internal thread, and is connected with the external thread on the first end of the nut (61); the second end of the nut (62) is located outside the fourth cavity (77), and the tightening nut ( 6) Limiting; the first step (63) arranged inside the first end portion (61) of the nut contacts the rear end surface of the second end portion (52) of the welding sleeve; the fastening nut A solder flowing space is formed between the second step (64) of (6) and the inner ring groove (53) arranged at the second end portion (52) of the solder sleeve.

In the above radio frequency cable assembly for aerospace, the cable core of the radio frequency coaxial cable (300) is welded to the contact pin (1);

Wherein, the cable core of the radio frequency coaxial cable (300) is in contact with the annular boss (21) of the first insulator (2) through the step of the pin tail (12), so that the first The insulator (2) is pressed against the front end protruding ring (712) of the housing (7) to limit the front of the cable core of the radio frequency coaxial cable (300) and form a second air segment; and, through the first The two insulators (4) are pressed tightly with the end face of the radio frequency coaxial cable (300), and the cable cores of the radio frequency coaxial cable (300) are rear-limited.

In the above-mentioned radio frequency cable assembly for aerospace, the housing (7) further includes: an annular groove (711) arranged on the front protruding ring (712); wherein, the annular groove (711) and The inner cavity of the housing (7) communicates.

In the above radio frequency cable assembly for aerospace, the first radio frequency connector (100) further includes: a connecting nut (9) and a retaining spring (8); the housing (7) also includes: The spring clamping groove (710) on the step portion (72);

The snap ring (8) is arranged in the spring clip slot (710);

The connecting nut (9) is connected with the housing (7) through the snap ring (8).

In the above radio frequency cable assembly for aerospace, the first insulator (2) includes: a plurality of first through holes uniformly distributed along the central axis of the first insulator (2);

The second insulator (4) includes: a plurality of second through holes uniformly distributed along the central axis of the second insulator (4).

In the above radio frequency cable assembly for aerospace, the cable (300) is a flexible or semi-flexible radio frequency coaxial cable;

The first insulator (2) is a modified polyphenylene ether material;

The second insulator (4) is polyetherimide material.

The present invention has the following advantages:

(1) The radio frequency cable assembly for aerospace described in the present invention adopts a double insulator support design, which can withstand high vibration shock and temperature alternating shock, and reduces the risk of deterioration of microwave transmission parameters of the cable assembly under sudden changes in the external environment. On the basis of ensuring excellent microwave transmission parameters, the high reliability and space environment resistance performance of the cable assembly is realized.

(2) The radio frequency cable assembly for aerospace described in the present invention adopts the first insulator and the second insulator of two sections of different materials and structures, compared with a single insulator with a traditional six-hole slotted or cylindrical stepped structure, The mechanical properties are enhanced, so that the radio frequency cable assembly for aerospace of the present invention has high reliability characteristics.

(3) The radio frequency cable assembly for aerospace described in the present invention adopts a structure in which an insulating plug is arranged between the pin and the cable, and the insulating plug can limit the front and rear of the inner core of the cable, compared with the traditional air gap structure , can be matched with ultra-short cables (eg, cables with a length less than 30mm), which further enhances the environmental resistance and mechanical properties of the radio frequency cable assembly for aerospace in the present invention, and has high reliability characteristics.

(4) The cavity structure formed by the fastening nut, the step and the chamfer of the welding sleeve of the present invention can make the tail of the welding sleeve overflow with solder to form an ideal rounded arc angle, compared with the traditional welding sleeve structure without chamfering at the tail , which improves the yield and reliability of the welding sleeve of the present invention.

(5) The radio frequency cable assembly for spaceflight described in the present invention can specifically be a K-type 2.92 cable assembly, due to the adoption of precision microwave parameter simulation optimization design technology, high specific strength insulator structure compensation design technology and temperature-resistant variable limit structure design technology, and the physical properties of the insulator materials used are reliable, so the working frequency band is wider, the power is higher, and the microwave transmission performance and space environment resistance performance are better. The working frequency of the radio frequency cable assembly for aerospace in the present invention can be DC to 40 GHz, the standing wave ratio is less than 1.30, and the working temperature is -100 ° C to +130 ° C. It can work in a high vacuum environment and realize the K type cable assembly at any position in space. 2.92 Connections between interfaces.

Description of drawings

Fig. 1 is a schematic diagram of the connection structure of an aerospace radio frequency cable assembly in an embodiment of the present invention;

Fig. 2 is an assembly diagram of a radio frequency connector in an embodiment of the present invention;

Fig. 3 is a schematic cross-sectional structure diagram of the radio frequency connector shown in Fig. 2;

Fig. 4 is a schematic structural diagram of a first insulator in the radio frequency connector shown in Fig. 2;

Fig. 5 is a schematic structural diagram of a second insulator in the radio frequency connector shown in Fig. 2;

Fig. 6 is a schematic structural diagram of a fastening nut in the radio frequency connector shown in Fig. 2;

Fig. 7 is a schematic structural diagram of a solder sleeve in the radio frequency connector shown in Fig. 2;

FIG. 8 is a schematic structural diagram of a housing in the radio frequency connector shown in FIG. 2 .

detailed description

In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the public implementation manners of the present invention in detail with reference to the accompanying drawings.

Referring to FIG. 1 , it shows a schematic diagram of a connection structure of an aerospace radio frequency cable assembly in an embodiment of the present invention. Wherein, the radio frequency cable assembly for aerospace includes: a first radio frequency connector 100 and a second radio frequency connector 200 with the same structure, and a radio frequency coaxial cable 300 and a marking shrink tube 400 .

In this embodiment, the two ends of the radio frequency coaxial cable 300 are respectively connected to the first radio frequency connector 100 and the second radio frequency connector 200; the marking shrink sleeve 400 is wrapped around the radio frequency coaxial cable 300 outside. Wherein, the cable 300 may be a flexible or semi-flexible radio-frequency coaxial cable; the length of the cable 300 may be cut as required before assembly, and bent as required before assembly or during use.

Referring to FIG. 2 , it shows an assembly diagram of a radio frequency connector in an embodiment of the present invention; referring to FIG. 3 , it is a schematic cross-sectional structure diagram of the radio frequency connector shown in FIG. 2 . As mentioned above, since the structural dimensions of the first radio frequency connector 100 and the second radio frequency connector 200 are completely consistent, in this embodiment, the first radio frequency connector 100 is taken as an example for illustration, and the second radio frequency connector The specific structure of 200 can be described with reference to the structure of the first radio frequency connector 100 .

In this embodiment, referring to FIG. 2 and FIG. 3 , the first radio frequency connector 100 may specifically include: a pin 1 whose center lines are on the same axis, a first insulator 2 , a ferrule 3 , and a second insulator 4 , welding sleeve 5, fastening nut 6 and shell 7. Wherein, the pin 1 includes: a pin head 11 and a pin tail 12 with gradually increasing diameters, and a central hole 13 arranged on the pin tail 12 .

In this embodiment, the first insulator 2 is set on the pin head 11; the second insulator 4 is set on the pin tail 12; the inner core of the radio frequency coaxial cable 300 extends into the central hole 13 and passes through The way of welding is connected with the central hole 13 . The compression sleeve 3 is disposed between the second insulator 4 and the inner wall of the housing 7 ; the welding sleeve 5 is sleeve-welded with one end of the radio frequency coaxial cable 300 . The fastening nut 6 is set on the welding sleeve 5 . The pin 1 , the first insulator 2 , the pressing sleeve 3 , the second insulator 4 , the welding sleeve 5 and the fastening nut 6 are located in the inner cavity of the housing 7 .

The specific connection relationship between the various components in the radio frequency cable assembly for aerospace will be described in detail below in conjunction with the specific structures of the components in the radio frequency cable assembly for aerospace according to the embodiments of the present invention.

Referring to FIG. 4 , it is a schematic structural diagram of the first insulator in the radio frequency connector shown in FIG. 2 . As shown in Fig. 4, the first insulator 2 may specifically include: an annular boss portion 21 and a flange portion 23 connected in sequence, and a plurality of first through holes ( The first through hole 22 as shown in Figure 4. Preferably, in this embodiment, the quantity of the first through hole can be 6, and the 6 first through holes reduce the first insulator 2. The comprehensive dielectric coefficient is conducive to impedance matching.

Referring to FIG. 5 , it is a schematic structural diagram of the second insulator in the radio frequency connector shown in FIG. 2 . As shown in FIG. 5 , the second insulator 4 may specifically include: a plurality of second through holes (such as the second through holes 41 shown in FIG. 5 ) uniformly distributed along the central axis of the second insulator 4 . Preferably, in this embodiment, the number of the second through holes can be 6, and the function of the 6 second through holes is the same as that of the above 6 first through holes, so that the second insulator 4 can be reduced. The comprehensive dielectric coefficient is conducive to impedance matching.

Referring to FIG. 6 , it is a schematic structural diagram of the fastening nut in the radio frequency connector shown in FIG. 2 . As shown in FIG. 6 , the fastening nut 6 may specifically include: a nut first end portion 61 and a nut second end portion 62 arranged in sequence. Wherein, the first end portion 61 of the nut is provided with an external thread, and the first end portion 61 of the nut is provided with a first step 63 and a second step 64 inside.

Referring to FIG. 7 , it is a schematic structural diagram of the solder sleeve in the radio frequency connector shown in FIG. 2 . As shown in FIG. 7 , the welding sleeve 5 may specifically include: a first end portion 51 of the welding sleeve and a second end portion 52 of the welding sleeve arranged in sequence, and an inner ring groove 53 arranged at the second end portion 52 of the welding sleeve .

Referring to FIG. 8 , it is a schematic structural diagram of the housing in the radio frequency connector shown in FIG. 2 . As shown in Fig. 8 , the housing 7 may specifically include: a cylindrical portion 71, a first stepped portion 72 and a second stepped portion 73 arranged in sequence on the outside with gradually increasing diameters, and a cylindrical portion arranged in sequence on the inside with successively increasing diameters. The first cavity 74, the second cavity 75, the third cavity 76 and the fourth cavity 77, and the first stepped surface 78 formed between the first cavity 74 and the second cavity 75, the second cavity 75 and the third cavity 76 The second stepped surface 79 formed therebetween, and the front-end protruding ring 712 provided on the cylindrical portion 71 .

Combined with the above Figures 2-8, we can see that:

The first insulator 2 is arranged in the first cavity 74 of the housing 7 . Wherein, the outer wall of the first insulator 2 is in contact with the cavity wall of the first cavity 74 , and the flange portion 23 of the first insulator 2 abuts against the first stepped surface 78 of the housing 7 .

The pressure sleeve 3 is arranged in the second cavity 75 of the housing 7 . Wherein, the outer wall of the pressure sleeve 3 is in contact with the cavity wall of the second cavity 75, the bottom end of the pressure sleeve 3 abuts against the second stepped surface 79 of the housing 7, and the inner wall of the pressure sleeve 3 A first air section is formed between the cavity wall and the pin tail 12 . Wherein, the first air section is formed between the inner cavity wall of the pressure sleeve 3 and the pin tail 12 to facilitate impedance matching.

The second insulator 4 is disposed in the second cavity 75 of the housing 7 , between the pressing sleeve 3 and the pin 1 . Wherein, the outer wall of the second insulator 4 is in contact with the inner cavity wall of the pressing sleeve 3 ; the bottom of the second insulator 4 abuts against the second stepped surface 79 of the housing 7 .

The welding sleeve 5 is arranged in the third cavity 76 and the fourth cavity 77 of the housing 7; wherein, the front end surface of the first end portion 51 of the welding sleeve is in contact with the second stepped surface 79 of the housing 7 and the The tail of the pressure sleeve 3 contacts the limit.

The nut first end 61 of the fastening nut 6 is arranged in the fourth cavity 77 of the housing 7 . Wherein, the cavity wall of the fourth cavity 77 is provided with an internal thread, which cooperates with the external thread on the first end portion 61 of the nut; the second end portion 62 of the nut is located outside the fourth cavity 77, The fastening nut 6 is limited; the first step 63 arranged inside the first end portion 61 of the nut is in contact with the rear end surface of the second end portion 52 of the welding sleeve; the fastening nut 6 A solder flow space is formed between the second step 64 and the inner ring groove 53 provided at the second end portion 52 of the solder sleeve.

The cable core of the radio frequency coaxial cable 300 is welded to the contact pin 1 . Wherein, the cable core of the radio frequency coaxial cable 300 is in contact with the annular boss portion 21 of the first insulator 2 through the step of the pin tail portion 12, so that the first insulator 2 is in contact with the shell 7 The protruding ring 712 on the front end face of the radio frequency coaxial cable 300 is compressed to limit the front of the cable core of the radio frequency coaxial cable 300 and form a second air section; The rear limit of the cable core of the coaxial cable 300. Among them, it should be noted that, in this embodiment, the second air segment formed by the first insulator 2 and the front-end protruding ring 712 of the housing 7 is conducive to impedance compensation; secondly, the first insulator 2 and the first insulator The two insulators 4 jointly realize the limitation of the inner core of the radio frequency coaxial cable 300. Both insulators have precise impedance compensation performance and high specific strength, completely isolate the shell 7 from the pin 1 and the inner core of the cable, and enhance the The anti-vacuum micro-discharge capability of the radio frequency cable assembly for aerospace according to the embodiment of the present invention; in addition, the double insulation support structure composed of the first insulator 2 and the second insulator 4 has high mechanical reliability, which improves the radio frequency for aerospace. Reliability of cable assemblies in the aerospace environment.

In a preferred embodiment of the present invention, as shown in FIG. 8 , the housing 7 further includes: an annular groove 711 provided on the front-end protruding ring 712 , wherein the annular groove 711 and the housing The inner cavity of the body 7 is connected, which is conducive to the rapid discharge of the air in the inner cavity of the shell 7 in the environment of reduced air pressure, and improves the anti-vacuum micro-discharge and anti-low air pressure of the radio frequency cable assembly for aerospace in the high and low temperature alternating environment The discharge capability makes the aerospace radio frequency cable assembly described in the embodiment of the present invention have good resistance to space environment.

In another preferred embodiment of the present invention, referring to FIGS. 2 and 3 , the first radio frequency connector 100 may further include: a connecting nut 9 and a retaining spring 8; further, as shown in FIG. 8 , the housing 7 may also It includes: a spring locking slot 710 provided on the first step portion 72 . Wherein, the clip spring 8 is disposed in the spring clip slot 710 ; the connecting nut 9 is connected to the housing 7 through the clip spring 8 .

It should be noted that in aerospace components, there are four commonly used insulating materials: polytetrafluoroethylene, modified polyphenylene ether, polyetherimide and polyether ether ketone. Any insulating material can be selected to process the first insulator 2 and the second insulator 4. Preferably, in this embodiment, the first insulator 2 can be a modified polyphenylene ether material, and the second insulator 2 can be made of a modified polyphenylene ether material. The second insulator 4 can be polyetherimide material.

In summary, the radio frequency cable assembly for aerospace described in the present invention adopts a double insulator support design, which can withstand high vibration shock and temperature alternating shock, and reduces the risk of deterioration of microwave transmission parameters of the cable assembly under sudden changes in the external environment , on the basis of ensuring excellent microwave transmission parameters, the high reliability and space environment resistance performance of the cable assembly is realized.

Secondly, the first insulator and the second insulator with two sections of different materials and structures, compared with the traditional six-hole slotted type or a single insulator with a cylindrical stepped structure, have enhanced mechanical properties, making the aerospace insulator described in the present invention RF cable assemblies have high reliability characteristics.

Thirdly, adopt the structure of insulating plug between the pin and the cable, the insulating plug can limit the inner core of the cable from front to back. cable), which further enhances the environmental resistance and mechanical properties of the aerospace radio frequency cable assembly of the present invention, and has high reliability characteristics.

Further, the cavity structure formed by the fastening nut, the step and the chamfer of the welding sleeve of the present invention can make the tail of the welding sleeve overflow with solder to form an ideal rounded arc angle, compared with the traditional welding sleeve structure without chamfer at the tail , which improves the yield and reliability of the welding sleeve of the present invention.

In addition, the radio frequency cable assembly for spaceflight described in the present invention can specifically be a K-type 2.92 cable assembly. Due to the use of precision microwave parameter simulation optimization design technology, high specific strength insulator structure compensation design technology, and temperature-resistant variable limit structure design technology , and the physical properties of the insulator material used are reliable, so the working frequency band is wider, the power is higher, the microwave transmission performance and the space environment resistance performance are better. The working frequency of the radio frequency cable assembly for aerospace in the present invention can be DC to 40 GHz, the standing wave ratio is less than 1.30, and the working temperature is -100 ° C to +130 ° C. It can work in a high vacuum environment and realize the K type cable assembly at any position in space. 2.92 Connections between interfaces.

The above description is only the best specific implementation mode of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of changes or modifications within the technical scope disclosed in the present invention. Replacement should be covered within the protection scope of the present invention.

The content that is not described in detail in the specification of the present invention belongs to the well-known technology of those skilled in the art.

Claims (9)

1. a kind of aerospace radio-frequency cable component, it is characterised in that including：The radio frequency connector of structure identical first (100) and Second radio frequency connector (200), and, radio frequency coaxial-cable (300) and mark Heat-Shrinkable Tubings (400)；The radio frequency coaxial-cable (300) two ends are connected with first radio frequency connector (100) and the second radio frequency connector (200) respectively；The mark contracting Sleeve pipe (400) is wrapped in the radio frequency coaxial-cable (300) outside；

Wherein, first radio frequency connector (100), including：Center line is located at contact pin (1), the first insulation on same axis Sub (2), gland (3), the second insulator (4), weldering set (5), clamp nut (6) and housing (7)；

The contact pin (1) includes：Pin head (11) and contact pin afterbody (12) that diameter increases step by step, and it is arranged on contact pin tail Centre bore (13) in portion (12)；

First insulator (2) is sleeved on pin head (11)；

Second insulator (4) is sleeved on contact pin afterbody (12)；

The centre bore (13) is welded to connect with the inner core of the radio frequency coaxial-cable (300)；

The gland (3) is arranged between second insulator (4) and the inwall of the housing (7)；

Weldering set (5) is welded with one end suit of radio frequency coaxial-cable (300)；

The clamp nut (6) is set in weldering set (5)；

The contact pin (1), the first insulator (2), gland (3), the second insulator (4), weldering set (5) and clamp nut (6) are located at In the inner chamber of the housing (7).

2. radio-frequency cable component according to claim 1, it is characterised in that

First insulator (2) includes：The annular boss portion (21) being linked in sequence and flange part (23)；

The clamp nut (6) includes：The nut first end portion (61) of order arrangement and nut the second end (62)；Wherein, institute State nut first end portion (61) and be provided with external screw thread, nut first end portion (61) inner side be provided with first step (63) and Second step (64)；

Weldering set (5) includes：The weldering of order arrangement covers first end (51) and weldering set the second end (52), and, it is arranged on The inner groove (53) of weldering set the second end (52)；

The housing (7) includes：Outside order arrangement, the cylindrical portion (71) that diameter gradually increases, first step portion (72) with And second step portion (73), and, internal sequence is arranged, the first chamber (74) that diameter increases successively, the second chamber (75), the 3rd Chamber (76) and the 4th chamber (77), and, First terrace (78), the second chamber formed between the first chamber (74) and the second chamber (75) (75) the second step face (79) formed and the 3rd chamber (76) between, and, it is arranged on the front end face in the cylindrical portion (71) Bulge loop (712).

3. radio-frequency cable component according to claim 2, it is characterised in that

First insulator (2) is arranged in first chamber (74) of the housing (7)；Wherein, first insulator (2) Outer wall is contacted with the cavity wall of first chamber (74), and the flange part (23) of first insulator (2) abuts the housing (7) First terrace (78)；

The gland (3) is arranged in second chamber (75) of the housing (7)；Wherein, the outer wall of the gland (3) and described The cavity wall contact in two chambers (75), the bottom of the gland (3) abuts the second step face (79) of the housing (7), the gland (3) the first air section is formed between internal chamber wall and the contact pin afterbody (12)；

Second insulator (4) is arranged in second chamber (75) of the housing (7), the gland (3) and the contact pin (1) Between；Wherein, the outer wall of second insulator (4) is contacted with the internal chamber wall of the gland (3)；Second insulator (4) Bottom abut the second step face (79) of the housing (7).

4. radio-frequency cable component according to claim 2, it is characterised in that

Weldering set (5) is arranged in the 3rd chamber (76) and the 4th chamber (77) of the housing (7)；Wherein, the weldering set first The front end face of end (51) contacts spacing with the second step face (79) of the housing (7) and the afterbody of the gland (3)；

The nut first end portion (61) of the clamp nut (6) is arranged in the 4th chamber (77) of the housing (7)；Wherein, institute Internal thread is provided with the cavity wall for stating the 4th chamber (77), is connected with the external screw thread on the nut first end portion (61)；Institute Nut the second end (62) is stated positioned at the 4th chamber (77) outside, the clamp nut (6) is carried out spacing；It is arranged on described First step (63) on the inside of nut first end portion (61) contacts spacing with the rear end face of weldering set the second end (52)；It is described The second step (64) of clamp nut (6) be arranged on it is described weldering set the second end (52) inner groove (53) between constitute scolding tin Trickling space.

5. radio-frequency cable component according to claim 2, it is characterised in that the cable of the radio frequency coaxial-cable (300) Core is welded to connect with contact pin (1)；

Wherein, the step and described first that the cable core of the radio frequency coaxial-cable (300) passes through the contact pin afterbody (12) Annular boss portion (21) contact of insulator (2), makes the front end face bulge loop of first insulator (2) and the housing (7) (712) compress, to the cable core front limit of radio frequency coaxial-cable (300), and form the second air section；And, by second Insulator (4) is compressed with the end face of radio frequency coaxial-cable (300), to spacing after the cable core of radio frequency coaxial-cable (300).

6. radio-frequency cable component according to claim 2, it is characterised in that the housing (7) also includes：It is arranged on described Annular groove (711) on front end face bulge loop (712)；Wherein, the inner space of the annular groove (711) and housing (7).

7. radio-frequency cable component according to claim 2, it is characterised in that first radio frequency connector (100) is also wrapped Include：Attaching nut (9) and jump ring (8)；The housing (7) also includes：It is arranged on the Spring Card on the first step portion (72) Groove (710)；

The jump ring (8) is arranged in the spring card slot (710)；

The attaching nut (9) is connected by the jump ring (8) with the housing (7).

8. radio-frequency cable component according to claim 1, it is characterised in that

First insulator (2) includes：Along the equally distributed multiple first through hole in axis of first insulator (2)；

Second insulator (4) includes：Along equally distributed multiple second through holes in the axis of second insulator (4).

9. the radio-frequency cable component according to claim any one of 1-8, it is characterised in that

The cable (300) is flexible or semi-flexible radio frequency coaxial-cable；

First insulator (2) is modified polyphenyl ether material；

Second insulator (4) is polyetherimide material.