阅读说明：本技术 一种8芯圆形10g以太网接触件 (8-core circular 10G Ethernet contact ) 是由 曹乔乔 曹永泉 陈群强 于 2021-01-14 设计创作，主要内容包括：一种8芯圆形10G以太网接触件,包括介质体合件和外导体,所述介质体合件整体套接于所述外导体内部；所述介质体合件的上部与所述外导体之间过盈压接固定,所述介质体合件的下部与所述外导体之间通过定位销固定。本发明不仅保证了以太网接触件的外形尺寸小型化,而且通过8芯数设计,增加了信号传输数量,并且通过设置十字屏蔽件减少了信号之间的干扰,大大提高了信号传输速率,满足了高速通信的需要,另外,相比传统2芯或4芯数设计,由于减少了以太网接触件的使用数量,从而间接节省了一半以上以太网接插件的重量。(An 8-core round 10G Ethernet contact element comprises a dielectric body assembly and an outer conductor, wherein the dielectric body assembly is integrally sleeved inside the outer conductor; the upper part of the dielectric body assembly and the outer conductor are fixed in an interference crimping mode, and the lower part of the dielectric body assembly and the outer conductor are fixed through a positioning pin. The invention not only ensures the miniaturization of the external dimension of the Ethernet contact element, but also increases the signal transmission quantity through the 8-core number design, reduces the interference between signals through arranging the cross shielding element, greatly improves the signal transmission rate, and meets the requirement of high-speed communication.)

1. An 8-core circular 10G Ethernet contact, characterized in that: the cable comprises a dielectric body assembly (1) and an outer conductor (7), wherein the dielectric body assembly (1) is integrally sleeved in the outer conductor (7); the upper part of the dielectric body assembly (1) is fixedly connected with the outer conductor (7) in an interference crimping manner, and the lower part of the dielectric body assembly (1) is fixedly connected with the outer conductor (7) through a positioning pin (8);

the dielectric body assembly (1) comprises an upper insulator (2), a middle insulator (3), an inner conductor (4), a lower insulator (5) and a cross-shaped shielding piece (6), the number of the inner conductors (4) is eight, the inner conductors (4) are distributed in an annular array shape, the middle part of the inner conductor (4) is axially inserted with the middle insulator (3), the upper part of the inner conductor (4) is axially inserted with the upper insulator (2), and the top end of the inner conductor (4) extends out of the upper insulator (2), the lower part of the inner conductor (4) is axially inserted into the lower insulator (5), the lower insulator (5) and the middle insulator (3) are mutually clamped, the same cross-shaped shielding piece (6) is inserted between the middle insulator (3) and the lower insulator (5), and the cross-shaped shielding piece (6) is positioned at the inner centers of the middle insulator and the lower insulator.

2. An 8-core circular 10G ethernet contact according to claim 1, wherein: the middle insulator (3) comprises a connecting seat (31), conductor placing grooves (32), partition plates (33) and a cross groove a (34), the connecting seat (31) is of a cylindrical structure, the four conductor placing grooves (32) distributed in an annular array are formed in the connecting seat (31), the conductor placing grooves (32) are formed in the outer wall of the connecting seat (31) and longitudinally penetrate through the connecting seat (31), the partition plates (33) are vertically arranged in the middle of each conductor placing groove (32), the conductor placing grooves (32) are evenly divided into two conductor placing sub-grooves (321) through the partition plates (33), each conductor placing sub-groove (321) can be clamped with the inner conductor (4), the top surface of each conductor placing sub-groove (321) is lower than the top surface of the connecting seat (31), the cross groove a (34) is formed in the center of the bottom of the connecting seat (31), the upper part of the cross shielding piece (6) is inserted into the cross groove a (34).

3. An 8-core circular 10G ethernet contact according to claim 2, wherein: the inner conductor (4) comprises an upper cylinder (41), a step column (42), a middle cylinder (43), a lower cylinder (44), a convex hull (45) and an orifice (46), the upper cylinder (41) is butted at the top end of the middle cylinder (43), the lower cylinder (44) is butted at the bottom end of the middle cylinder, the step column (42) is axially arranged at the butt joint of the upper cylinder (41) and the middle cylinder (43), the diameter of the lower cylinder (44) is larger than that of the middle cylinder (43), the convex hull (45) is axially arranged at each of the upper part and the lower part of the lower cylinder (44), and the orifice (46) is arranged at the bottom end of the lower cylinder (44); the upper column body (41) extends out of the connecting seat (31), the middle column body (43) is clamped in the conductor placing sub-groove (321) of the middle insulator (3), the lower portion of the step column (42) is clamped on the top surface of the conductor placing sub-groove (321), and the top surface of the lower column body (44) is attached to the bottom surface of the connecting seat (31).

4. An 8-core circular 10G Ethernet contact according to claim 3, wherein: the lower insulator (5) comprises a cannula (51) and a ring body (52), the cannula (51) is of a cylindrical structure, the ring body (52) is fixedly sleeved on the upper portion of the cannula (51), the upper end face of the ring body (52) is flush with the upper end face of the cannula (51), clamping plates (522) distributed in an annular array are vertically arranged on the upper end face of the ring body (52), a clamping groove (525) is formed between every two adjacent clamping plates (522), the bottom of the connecting seat (31) is clamped in the clamping groove (525), the clamping plates (522) extend into a conductor placing groove (32) of the connecting seat (31), and the inner wall of each clamping plate (522) is attached to the outer wall of the partition plate (33); the edge of the upper end face of the insertion pipe (51) is provided with hole grooves (523) distributed in an annular array, the hole grooves (523) longitudinally penetrate through the insertion pipe (51), a lower cylinder (44) of the inner conductor (4) is clamped in the hole grooves (523), a convex hull (45) of the lower cylinder (44) is fixedly pressed and connected with the inner wall of the hole grooves (523) in an interference fit mode, the center of the upper end face of the insertion pipe (51) is provided with a cross groove b (511), the center of the lower end face of the insertion pipe (51) is provided with a cross groove c (524), the cross groove c (524) extends to the cross groove b (511), and the lower portion of the cross shielding piece (6) is sequentially inserted into the cross groove c (524) and the cross groove b (511); the outer wall of the ring body (52) is provided with an inwards concave limiting groove (521), and the inner end part of the positioning pin (8) is attached to the limiting groove (521).

5. An 8-core circular 10G Ethernet contact according to claim 4, wherein: go up insulator (2) and adopt cake shape structure, it includes needle body jack (21), barb (22) and chamfer (23) to go up insulator (2), the up end of going up insulator (2) runs through and sets up needle body jack (21) that are the annular array and distribute, last cylinder (41) of inner conductor (4) correspond and insert in needle body jack (21), just the top of going up cylinder (41) is arranged in needle body jack (21) outside, the cylinder circumference of going up insulator (2) is equipped with barb (22), just barb (22) with outer conductor (7) inner wall interference crimping is fixed, the bottom edge of needle body jack (21) has been seted up chamfer (23), the upper portion of step post (42) clamp in chamfer (23).

6. An 8-core circular 10G Ethernet contact according to claim 5, wherein: locking hole (71) have been seted up to the outer wall of outer conductor (7), locating pin (8) pass locking hole (71), the tip of locating pin (8) stretch into in spacing groove (521), both interference press-fit locks.

7. An 8-core circular 10G Ethernet contact according to claim 4, wherein: the cross-shaped shielding part (6) comprises a first shielding plate (61) and a second shielding plate (62), a first clamping groove (611) is longitudinally formed in the middle of the bottom end of the first shielding plate (61), first clamping grooves (612) are formed in two sides of the top of the first shielding plate (61), a second clamping groove (621) is longitudinally formed in the middle of the top end of the second shielding plate (62), and second clamping grooves (622) are formed in two sides of the top of the second shielding plate (62); the overall dimension of first shield plate (61) and second shield plate (62) is the same, first shield plate (61) and second shield plate (62) pass through the mutual joint of first draw-in groove (611) and second draw-in groove (621) and be the criss-cross setting, first double-layered groove (612) and second press from both sides groove (622) all with connecting seat (31) mutual joint of well insulator (3).

Technical Field

The invention belongs to the technical field of communication equipment, and particularly relates to an 8-core circular 10G Ethernet contact.

Background

The 10G Ethernet is IEEE Std 802.3ae2002, and the Ethernet which transmits at the speed of 10Gbit/s is specified; the minimum and maximum frame lengths of the ethernet specified by the 802.3 standard are preserved. The 10G ethernet has expanded the working range of ethernet from local area networks to metropolitan area networks and wide area networks, thereby implementing end-to-end ethernet transmission.

The round 10G Ethernet contact is used for signal transmission of Ethernet in the aerospace field; in the practical use process of the circular 10G Ethernet contact, the requirement on the external dimension of the contact is more and more miniaturized, and meanwhile, the requirements on the signal transmission quality and the signal transmission rate are more and more high, and the traditional circular 10G Ethernet contact mostly has 2 cores and 4 cores, so that the requirement on high-speed communication cannot be met.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides an 8-core circular 10G Ethernet contact element, which has the following specific technical scheme:

an 8-core round 10G Ethernet contact element comprises a dielectric body assembly and an outer conductor, wherein the dielectric body assembly is integrally sleeved inside the outer conductor; the upper part of the dielectric body assembly is fixed with the outer conductor in an interference compression joint mode, and the lower part of the dielectric body assembly is fixed with the outer conductor through a positioning pin;

the dielectric body assembly comprises an upper insulator, a middle insulator, an inner conductor, a lower insulator and a cross shielding piece, wherein the number of the inner conductors is eight, the inner conductors are distributed in an annular array shape, the middle part of the inner conductor is axially spliced with the middle insulator, the upper part of the inner conductor is axially spliced with the upper insulator, the top end of the inner conductor extends out of the outer side of the upper insulator, the lower part of the inner conductor is axially spliced in the lower insulator, the lower insulator is clamped with the middle insulator, the middle insulator is clamped with the middle insulator, the cross shielding piece is embedded between the middle insulator and the lower insulator, and the cross shielding piece is located in the inner center of the middle insulator and the cross shielding piece.

Further, well insulator includes connecting seat, conductor standing groove, baffle and cross recess a, the connecting seat is the cylinder structure, four have been seted up on the connecting seat and have been the annular array and distribute the conductor standing groove, the conductor standing groove set up in the outer wall of connecting seat, and vertically run through in the connecting seat, every the equal vertical being equipped with in middle part of conductor standing groove the baffle, the conductor standing groove passes through the baffle is evenly separated into two conductors and is placed the subdivision groove, every all can the joint in the conductor is placed the subdivision groove the inner conductor, the top surface that the conductor was placed the subdivision groove is less than the top surface of connecting seat, the bottom center department of connecting seat has seted up cross recess a, the upper portion of cross shielding piece peg graft in cross recess a.

Furthermore, the inner conductor comprises an upper column body, a step column, a middle column body, a lower column body, a convex hull and an orifice, the upper column body is butted at the top end of the middle column body, the lower column body is butted at the bottom end of the middle column body, the step column is axially arranged at the butt joint position of the upper column body and the middle column body, the diameter of the lower column body is larger than that of the middle column body, the convex hull is axially arranged at each of the upper part and the lower part of the lower column body, and the orifice is arranged at the bottom end of the lower column body; the upper column body extends out of the connecting seat, the middle column body is clamped in the conductor placing sub-groove of the middle insulator, the lower portion of the step column is clamped on the top surface of the conductor placing sub-groove, and the top surface of the lower column body is attached to the bottom surface of the connecting seat.

Furthermore, the lower insulator comprises an insertion tube and a ring body, the insertion tube is of a cylindrical structure, the ring body is fixedly sleeved on the upper portion of the insertion tube, the upper end face of the ring body is flush with the upper end face of the insertion tube, clamping plates distributed in an annular array are vertically arranged on the upper end face of the ring body, a clamping groove is formed between every two adjacent clamping plates, the bottom of the connecting seat is clamped in the clamping groove, the clamping plates extend into the conductor placing groove of the connecting seat, and the inner walls of the clamping plates are attached to the outer walls of the partition plates; the edge of the upper end face of the insertion tube is provided with hole grooves distributed in an annular array, the hole grooves longitudinally penetrate through the insertion tube, a lower cylinder of the inner conductor is clamped in the hole grooves, a convex hull of the lower cylinder is fixedly pressed and connected with the inner wall of the hole grooves in an interference mode, a cross groove b is formed in the center of the upper end face of the insertion tube, a cross groove c is formed in the center of the lower end face of the insertion tube and extends to the cross groove b, and the lower portion of the cross shielding piece is sequentially inserted into the cross groove c and the cross groove b; the outer wall of the ring body is provided with an inwards concave limiting groove, and the inner end part of the positioning pin is attached to the limiting groove.

Further, go up the insulator and adopt cake shape structure, it includes needle body jack, barb and chamfer to go up the insulator, the up end of going up the insulator runs through and sets up the needle body jack that is the ring array and distributes, the last cylinder of inner conductor corresponds inserts in the needle body jack, just the top of going up the cylinder is arranged in the needle body jack outside, the cylinder circumference of going up the insulator is equipped with the barb, just the barb with outer conductor inner wall interference crimping is fixed, the bottom edge of needle body jack has been seted up the chamfer, the upper portion of step post clamp in the chamfer.

Furthermore, the outer wall of the outer conductor is provided with a locking hole, the positioning pin penetrates through the locking hole, the end part of the positioning pin extends into the limiting groove, and the positioning pin and the limiting groove are in interference press fit and locking.

Furthermore, the cross-shaped shielding part comprises a first shielding plate and a second shielding plate, a first clamping groove is longitudinally formed in the middle of the bottom end of the first shielding plate, first clamping grooves are formed in two sides of the top of the first shielding plate, a second clamping groove is longitudinally formed in the middle of the top end of the second shielding plate, and second clamping grooves are formed in two sides of the top of the second shielding plate; the overall dimension of first shield plate and second shield plate is the same, first shield plate passes through with the second shield plate the mutual joint of first draw-in groove and second draw-in groove and be the cross setting, first double-layered groove with the second press from both sides the groove all with the mutual joint of connecting seat of well insulator.

The invention has the beneficial effects that:

according to the invention, the dielectric assembly for transmitting network signals is integrally sleeved in the outer conductor, so that the overall dimension of the Ethernet contact element is miniaturized; the upper part of the dielectric body assembly is fixed with the outer conductor in an interference compression joint mode, the lower part of the dielectric body assembly is fixed with the outer conductor through the positioning pin, and the double-limit design prevents the dielectric body assembly from radially deviating and improves the signal transmission quality; in addition, compared with the traditional 2-core or 4-core design, the invention reduces the using quantity of the Ethernet contact elements, thereby indirectly saving more than half of the weight of the Ethernet connector.

Drawings

Figure 1 shows a schematic diagram of a media pack construction of the present invention;

FIG. 2 shows a first insulator-on-structure diagram of the present invention;

FIG. 3 shows a second insulator-on-structure diagram of the present invention;

FIG. 4 shows a schematic view of the mid-insulator upright configuration of the present invention;

FIG. 5 shows a schematic diagram of an inverted construction of the mid-insulator of the present invention;

FIG. 6 shows a schematic diagram of the inner conductor structure of the present invention;

FIG. 7 shows a first schematic view of the lower insulator configuration of the present invention;

FIG. 8 shows a second lower insulator configuration of the present invention;

FIG. 9 shows a schematic view of the cross shield structure of the present invention;

FIG. 10 shows a schematic view of a first shield construction of the present invention;

FIG. 11 shows a schematic view of a second shield construction of the present invention;

FIG. 12 is a schematic view showing a connection structure of the middle insulator, the cruciform shield and the inner conductor of the present invention;

figure 13 shows a schematic view of an explosive separation configuration of a media pack of the present invention;

fig. 14 is a schematic view showing the connection structure of the outer conductor and the dielectric member according to the present invention.

Shown in the figure: 1. a dielectric body assembly; 2. an upper insulator; 21. a needle body insertion hole; 22. a barb; 23. chamfering; 3. a middle insulator; 31. a connecting seat; 32. a conductor placement groove; 321. conductor placement sub-slots; 33. a partition plate; 34. a cross groove a; 4. an inner conductor; 41. an upper column; 42. a step post; 43. a middle column body; 44. a lower column; 45. a convex hull; 46. an orifice; 5. a lower insulator; 51. inserting a tube; 511. a cross groove b; 52. a ring body; 521. a limiting groove; 522. a clamping plate; 523. a hole groove; 524. a cross groove c; 525. a clamping groove; 6. a cross shield; 61. a first shield plate; 611. a first card slot; 612. a first clamping groove; 62. a second shielding plate; 621. a second card slot; 622. a second clamping groove; 7. an outer conductor; 71. a locking hole; 8. and a positioning pin.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1 and 14, an 8-core circular 10G ethernet contact comprises a dielectric member 1 and an outer conductor 7, wherein the dielectric member 1 is integrally sleeved inside the outer conductor 7; the upper part of the dielectric body assembly 1 is fixedly pressed and connected with the outer conductor 7 in an interference mode, and the lower part of the dielectric body assembly 1 is fixedly connected with the outer conductor 7 through a positioning pin 8;

the dielectric body assembly 1 comprises an upper insulator 2, a middle insulator 3, an inner conductor 4, a lower insulator 5 and cross shields 6, the number of the inner conductors 4 is eight, the inner conductors 4 are distributed in an annular array shape, the middle of each inner conductor 4 is axially inserted into the middle insulator 3, the upper part of each inner conductor 4 is axially inserted into the upper insulator 2, the top end of each inner conductor 4 extends out of the outer side of the upper insulator 2, the lower part of each inner conductor 4 is axially inserted into the lower insulator 5, the lower insulators 5 and the middle insulators 3 are clamped with each other, the same cross shields 6 are inserted between the middle insulators 3 and the lower insulators 5, and the cross shields 6 are located in the inner centers of the two insulators.

According to the technical scheme, the multi-component axial limiting insertion is adopted to form the dielectric member 1, and the dielectric member 1 is integrally sleeved in the outer conductor 7, so that the overall dimension of the Ethernet contact element is miniaturized; the upper part of the dielectric body assembly 1 is fixed with the outer conductor 7 in an interference compression joint mode, the lower part of the dielectric body assembly 1 is fixed with the outer conductor 7 through the positioning pin 8, and the double-limit design prevents the dielectric body assembly 1 from deviating and rotating and improves the signal transmission quality; the design of the 8-core inner conductor 4 increases the signal transmission quantity, and the cross shielding piece 6 is arranged to reduce the interference between signals, thereby greatly improving the signal transmission rate and meeting the requirement of high-speed communication; the inner conductor 4 is a signal transmission member serving as a signal contact; the middle insulator 3 can fix the inner conductor 4 and the cross shield 6, so that the inner conductor 4 and the cross shield 6 can be accurately inserted into the lower insulator 5 from the upper part, and the cross shield 6 can shield and block interference signals from the inner part of the lower insulator 5.

As shown in fig. 4 and 5, the middle insulator 3 includes a connecting holder 31, a conductor placing groove 32, a partition 33 and a cross groove a34, the connecting seat 31 is a cylindrical structure, four conductor placing grooves 32 distributed in an annular array are formed in the connecting seat 31, the conductor placing grooves 32 are formed in the outer wall of the connecting seat 31, and longitudinally penetrates the connecting socket 31, the middle part of each conductor placing groove 32 is vertically provided with the clapboard 33, the conductor placing groove 32 is divided into two conductor placing sub-grooves 321 by the partition 33, each conductor placing sub-groove 321 can be clamped with the inner conductor 4, the top surface of the conductor placing sub-slot 321 is lower than the top surface of the connecting base 31, the cross-shaped slot a34 is formed in the center of the bottom of the connecting base 31, and the upper part of the cross-shaped shield 6 is inserted into the cross-shaped slot a 34.

Through the technical scheme, the conductor placing grooves 32 are divided into two parts by the partition plates 33, so that two inner conductors 4 can be clamped in each conductor placing groove 32, and the installation quantity of the inner conductors 4 is increased; the arrangement of the cross-shaped groove a34 is used for facilitating the insertion of the cross-shaped shielding piece 6, so that the shielding effect is better, and the assembly is simple and convenient.

As shown in fig. 6 and 12, the inner conductor 4 includes an upper column 41, a step column 42, a middle column 43, a lower column 44, a convex hull 45 and an orifice 46, the upper column 41 is abutted to the top end of the middle column 43, the lower column 44 is abutted to the bottom end of the middle column 43, the step column 42 is axially disposed at the abutting position of the upper column 41 and the middle column 43, the diameter of the lower column 44 is larger than that of the middle column 43, the convex hull 45 is axially disposed at each of the upper and lower portions of the lower column 44, and the orifice 46 is disposed at the bottom end of the lower column 44; the upper column 41 extends out of the connecting seat 31, the middle column 43 is clamped in the conductor placing sub-slot 321 of the middle insulator 3, the lower part of the step column 42 is clamped on the top surface of the conductor placing sub-slot 321, and the top surface of the lower column 44 is attached to the bottom surface of the connecting seat 31.

Through the technical scheme, the middle column body 43 can be restrained in the conductor placing sub-groove 321 in the vertical direction by utilizing the abutting limit of the step surfaces of the step column 42 and the lower column body 44, so that the inner conductor 4 can be stably placed in the middle insulator 3 without deviation, and the signal transmission rate is better improved; the apertures 46 are plug members for each conductor.

As shown in fig. 7, 8 and 13, the lower insulator 5 includes a cannula 51 and a ring body 52, the cannula 51 is a cylindrical structure, the ring body 52 is fixedly sleeved on the upper portion of the cannula 51, the upper end surface of the ring body 52 is flush with the upper end surface of the cannula 51, the upper end surface of the ring body 52 is vertically provided with clamping plates 522 distributed in an annular array, a clamping groove 525 is formed between adjacent clamping plates 522, the bottom of the connecting seat 31 is clamped in the clamping groove 525, the clamping plates 522 extend into the conductor placing groove 32 of the connecting seat 31, and the inner wall of the clamping plates 522 is attached to the outer wall of the partition plate 33; the edge of the upper end face of the insertion tube 51 is provided with hole grooves 523 distributed in an annular array, the hole grooves 523 longitudinally penetrate through the insertion tube 51, the lower cylinder 44 of the inner conductor 4 is clamped in the hole grooves 523, the convex hull 45 of the lower cylinder 44 is fixedly pressed and connected with the inner wall of the hole grooves 523 in an interference fit manner, the center of the upper end face of the insertion tube 51 is provided with a cross groove b511, the center of the lower end face of the insertion tube 51 is provided with a cross groove c524, the cross groove c524 extends to the cross groove b511, and the lower part of the cross shielding part 6 is sequentially inserted into the cross groove c524 and the cross groove b 511; the outer wall of ring body 52 is seted up the spacing groove 521 that indent, the inner end of locating pin 8 with the laminating of spacing groove 521 mutually.

Through the technical scheme, the inner conductor 4 can be blocked and restrained from the outer side direction by using the clamping plate 522, and the inner conductor 4 is blocked and restrained from the inner side part by using the middle insulator 3 and the partition plate 33, so that the omnibearing restraint positioning of the inner conductor 4 is realized; the cross groove c524 extends to the cross groove b511 to ensure that the depth of the cross groove b511 does not interfere with the bottom of the shielding plate 6; the hole 523 is used as an insertion structure of the inner conductor 4 to better limit the radial displacement of the inner conductor 4; the concave limiting groove 521 can block the positioning pin 8 from the circumferential direction, and the lower insulator 5 is prevented from rotating.

As shown in fig. 1-3, go up insulator 2 and adopt cake-shaped structure, it includes needle body jack 21, barb 22 and chamfer 23 to go up insulator 2, the up end of going up insulator 2 runs through to set up the needle body jack 21 that is the annular array and distributes, inner conductor 4's last cylinder 41 corresponds and inserts in the needle body jack 21, just go up the top of cylinder 41 and arrange in the needle body jack 21 outside, the cylinder circumference of going up insulator 2 is equipped with barb 22, just barb 22 with outer conductor 7 inner wall interference crimping is fixed, the bottom edge of needle body jack 21 has been seted up chamfer 23, the upper portion of step post 42 clamp in chamfer 23.

By the technical scheme, the upper insulator 2 with the round cake-shaped structure is convenient for reducing weight, and the barb 22 on the cylindrical surface of the upper insulator 2 is fixed with the inner wall of the outer conductor 7 in an interference crimping way, so that the medium assembly 1 is better prevented from radial displacement; the upper part of the step column 42 is clamped in the chamfer 23, and further the middle column 43 is limited in collision.

As shown in fig. 14, a locking hole 71 is formed in the outer wall of the outer conductor 7, the positioning pin 8 passes through the locking hole 71, the end of the positioning pin 8 extends into the limiting groove 521, and the two are press-fitted and locked in an interference manner.

Through above-mentioned technical scheme, 8 exemplary adoption interference pressure of locating pin are joined in marriage locking, and locating pin 8 can be convenient for the fixed mounting of outer conductor 7 and medium body closes piece 1, prevents that medium body closes piece 1 from taking place radial offset.

As shown in fig. 9 to 11, the cross-shaped shielding member 6 includes a first shielding plate 61 and a second shielding plate 62, a first clamping groove 611 is longitudinally formed in the middle of the bottom end of the first shielding plate 61, first clamping grooves 612 are formed in two sides of the top of the first shielding plate 61, a second clamping groove 621 is longitudinally formed in the middle of the top end of the second shielding plate 62, and second clamping grooves 622 are formed in two sides of the top of the second shielding plate 62; the first shielding plate 61 and the second shielding plate 62 have the same external dimensions, the first shielding plate 61 and the second shielding plate 62 are arranged in a cross shape by the mutual clamping of the first clamping groove 611 and the second clamping groove 621, and the first clamping groove 612 and the second clamping groove 622 are both clamped with the connecting base 31 of the middle insulator 3.

Through the technical scheme, the cross shielding piece 6 is assembled by adopting split cross insertion, so that a shielding structure is convenient to form, and the disassembly, assembly and replacement are also convenient.

The working principle of the invention is as follows:

when the invention is used, firstly, the cross shield 6 is assembled, the upper part of the cross shield 6 is inserted into the inverted cross groove a34 from the bottom end of the connecting base 31, and the first clamping groove 612 and the second clamping groove 622 on the top end of the cross shield 6 are clamped on the connecting base 31;

then, 8 inner conductors 4 are inserted into the conductor placing grooves 32, two inner conductors 4 are clamped into each conductor placing groove 32, the middle column 42 is embedded into the conductor placing sub-groove 321, the upper column 41 extends out of the connecting seat 31, the lower part of the step column 42 is clamped on the top surface of the conductor placing sub-groove 321, and the top surface of the lower column 44 is attached to the bottom surface of the connecting seat 31;

then, each clamping plate 522 is inserted into the corresponding conductor placing groove 32, the inner wall of each clamping plate 522 is attached to the outer wall of the partition plate 33, the middle cylinder 43 is fixed in the conductor placing groove 32 by the clamping plates 522, the inner conductor 4 is inserted into the hole groove 523 correspondingly, and the lower part of the cross-shaped shielding piece 6 is sequentially inserted into the cross-shaped groove c524 and the cross-shaped groove b511, so that an internal shielding structure is formed;

then, the upper column 41 of the inner conductor 4 is correspondingly inserted into the needle body insertion hole 21 of the upper insulator 2, so that the upper part of the step column 42 is clamped in the chamfer 23;

finally, the assembled dielectric body assembly 1 is integrally inserted into the outer conductor 7, the barb 22 on the cylindrical surface of the upper insulator 2 is in interference compression joint with the inner wall of the outer conductor 7 for fixation, the positioning pin 8 penetrates through the locking hole 71, the end part of the positioning pin 8 extends into the limiting groove 521, and the two are in interference press fit and locking.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.