阅读说明：本技术 一种多通道的射频同轴连接器 (Multi-channel radio frequency coaxial connector ) 是由 王瑶 宋志强 李军 于 2021-06-16 设计创作，主要内容包括：本发明公开了一种多通道的射频同轴连接器,包括：一第一壳体,其后端具有梅花形空腔,梅花形空腔内具有数个围绕第一壳体轴心而设置的孔位；第一壳体后端具有数个销钉孔和数个螺孔,销钉孔径向设置,螺孔轴向设置,销钉孔与螺孔的位置一一对应；数个单通道连接器组件,分别轴向设置于第一壳体之内,且数个单通道连接器组件的后端分别位于对应的孔位中；数个销钉,分别径向插入对应的销钉孔,销钉内端卡住单通道连接器组件的侧部；及数个螺丝,分别轴向螺入对应的螺孔,螺丝内端顶住销钉的侧部。本发明第一壳体后端能容置较大尺寸单通道连接器组件,并且组装稳固、拆卸容易,能解决各个单通道连接器组件配接较大尺寸波纹管电缆空间不足问题。(The invention discloses a multi-channel radio frequency coaxial connector, which comprises: a first shell, the rear end of which is provided with a quincunx cavity, and the quincunx cavity is internally provided with a plurality of hole sites arranged around the axle center of the first shell; the rear end of the first shell is provided with a plurality of pin holes and a plurality of screw holes, the pin holes are radially arranged, the screw holes are axially arranged, and the pin holes correspond to the screw holes one by one; the single-channel connector assemblies are axially arranged in the first shell respectively, and the rear ends of the single-channel connector assemblies are positioned in the corresponding hole positions respectively; the pins are respectively inserted into the corresponding pin holes in the radial direction, and the inner ends of the pins clamp the side part of the single-channel connector assembly; and a plurality of screws which are respectively screwed into the corresponding screw holes in the axial direction, and the inner ends of the screws are propped against the side parts of the pins. The rear end of the first shell can accommodate a larger-size single-channel connector assembly, is stable to assemble and easy to disassemble, and can solve the problem that the space for each single-channel connector assembly to be matched with a larger-size corrugated pipe cable is insufficient.)

1. A multi-channel rf coaxial connector, comprising:

the rear end of the first shell is provided with a quincunx cavity, and a plurality of hole sites arranged around the axle center of the first shell are arranged in the quincunx cavity; the rear end of the first shell is also provided with a plurality of pin holes and a plurality of screw holes, the pin holes are radially arranged, the screw holes are axially arranged, and the pin holes correspond to the screw holes one by one;

the single-channel connector assemblies are axially arranged in the first shell respectively, and the rear ends of the single-channel connector assemblies are positioned in the corresponding hole positions respectively;

the pins are respectively and radially inserted into the corresponding pin holes, and the inner ends of the pins clamp the side part of the single-channel connector assembly;

and a plurality of screws which are respectively screwed into the corresponding screw holes in the axial direction, and the inner ends of the screws are propped against the side parts of the pins.

2. The multi-channel rf coaxial connector of claim 1, wherein: the pin and the pin hole are in clearance fit.

3. The multi-channel rf coaxial connector of claim 1, wherein: the quantity of single channel connector subassembly, pin, screw, hole site, cotter hole and screw is 5.

4. The multi-channel rf coaxial connector of claim 3, wherein: the distance between each hole site and the axle center of the first shell is equal, the distance between each screw hole and the axle center of the first shell is equal, the distance between two adjacent hole sites is equal, the distance between two adjacent screw holes is equal, and the distance between two adjacent pin holes is equal.

5. The multi-channel rf coaxial connector of claim 1, wherein: the inner wall of the first shell at the tangent position between two adjacent hole sites is provided with a residual material cutting opening, and the residual material cutting opening is connected with the cavity wall of the quincunx cavity into a whole.

6. The multi-channel rf coaxial connector of claim 1, wherein: the single channel connector assembly has a second housing with a housing slot formed therein; the pin holes and the screw holes are respectively positioned on the first shell at the outer side between the two adjacent hole positions, and the inner ends of the pins are simultaneously clamped into the shell grooves of the two adjacent single-channel connector assemblies; the side part of the pin is provided with a pin groove, and the inner end of the screw is jacked into the pin groove of the pin.

7. The multi-channel rf coaxial connector of claim 6, wherein: the shell groove is an annular groove formed around the second shell, the pin groove is a flat groove, and the screw is a hexagon socket head cap screw.

8. The multi-channel rf coaxial connector of claim 6, wherein: the front end of the first shell is provided with a plurality of through holes, the number of the through holes is consistent with that of the single-channel connector assemblies, and the front ends of the single-channel connector assemblies are respectively positioned in the corresponding through holes; the through holes are communicated with corresponding hole positions in the quincunx cavities.

9. The multi-channel rf coaxial connector of claim 8, wherein: the single-channel connector assembly further comprises a metal contact element, an insulating inner cylinder, a metal plug shaft, an insulating ring piece, a first sealing ring and a second sealing ring; the metal insertion shaft is axially inserted into the insulating inner cylinder, wiring holes are respectively formed in two ends of the metal insertion shaft, and the rear end of the metal insertion shaft extends out of the insulating inner cylinder; the second shell is a metal shell, the front end of the second shell is sleeved outside the insulating inner cylinder, the insulating ring sheet is sleeved outside the rear end of the metal plug-in shaft, and the rear end of the second shell is sleeved outside the insulating ring sheet; the metal contact piece is sleeved outside the front end of the insulating inner cylinder and connected with the front end of the second shell; the first sealing ring is arranged between the second shell and the insulating inner cylinder, and the second sealing ring is arranged between the second shell and the wall of the through hole of the first shell.

10. The multi-channel rf coaxial connector of claim 1, wherein: the first shell is provided with a threaded sleeve, and a sealing ring and a clamping ring are arranged between the first shell and the threaded sleeve.

Technical Field

The invention relates to the technical field of radio frequency connectors, in particular to a multi-channel radio frequency coaxial connector.

Background

The radio frequency connector plays a role in connecting a transmission line, a microstrip circuit and a printed circuit board circuit link in signal transmission, has the advantages of wide working frequency band, convenience in connection and the like, and is widely applied to the fields of communication engineering, aerospace aviation systems, military weapons and the like. The multi-channel radio frequency coaxial connector (cluster radio frequency connector) is formed by bundling a plurality of single-channel radio frequency connectors in one connector, so that the work of wiring, maintenance and the like is greatly simplified, and the reliability and maintainability of the system are improved. On 27.8.2019, NGMN announced that MQ4/MQ5 bundled radio frequency connector solution proposed by huashisi was recommended as an industry standard for 5G initial deployment. And issuing a white paper, wherein the writing members of the white paper are 19 equipment vendors and operators such as Amphenol, China Mobile, Commscope, Ericsson, Huawei, Huber & Suhner, Kathrein, NEC, Nokia, Orange, RFS, Rosenberger, Spiner, TG and the like.

In the conventional technology, the structure of the multi-channel rf coaxial connector includes a first housing, and a plurality of single-channel connector assemblies are disposed in the first housing. The fixed mounting structure of the single-channel connector assembly in the first shell mainly comprises two structures, wherein one structure is that the single-channel connector assembly is screwed and fixed in the first shell, and the other structure is that the single-channel connector assembly is clamped and fixed in the first shell. The multichannel radio frequency coaxial connectors with two fixed mounting structures can basically meet the requirements of matching corrugated pipe cables, but when the multichannel radio frequency coaxial connectors with two fixed mounting structures are matched with corrugated pipe cables with larger sizes, the multichannel radio frequency coaxial connectors with two fixed mounting structures often have the problems that the space of the corrugated pipe cables is insufficient and the corrugated pipe cables with larger sizes cannot be matched, and particularly, the multichannel radio frequency coaxial connector with MQ5 is very obviously limited, for example, the traditional radio frequency coaxial connector with MQ5 multichannel has the defects that the space for matching 1/3 inches of corrugated pipe cables is insufficient, the assembly process of converting 1/4 inches of corrugated pipe cables into 1/2 inches of corrugated pipe cables is complex, the intermodulation performance is unstable, the attenuation index is too large, and the like.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a multi-channel radio frequency coaxial connector which is easy to assemble and can accommodate a larger-sized single-channel connector assembly at the rear end of a first shell according to the defects of the prior art, solve the problem of insufficient space for each single-channel connector assembly of the multi-channel radio frequency coaxial connector to be matched with a larger-sized corrugated pipe cable, and avoid the defects of complex assembling process, unstable intermodulation performance and overlarge attenuation index of the corrugated pipe cable.

In order to solve the technical problems, the technical scheme of the invention is as follows: a multi-channel radio frequency coaxial connector comprising:

the rear end of the first shell is provided with a quincunx cavity, and a plurality of hole sites arranged around the axle center of the first shell are arranged in the quincunx cavity; the rear end of the first shell is also provided with a plurality of pin holes and a plurality of screw holes, the pin holes are radially arranged, the screw holes are axially arranged, and the pin holes correspond to the screw holes one by one;

the single-channel connector assemblies are axially arranged in the first shell respectively, and the rear ends of the single-channel connector assemblies are positioned in the corresponding hole positions respectively;

the pins are respectively and radially inserted into the corresponding pin holes, and the inner ends of the pins clamp the side part of the single-channel connector assembly;

and a plurality of screws which are respectively screwed into the corresponding screw holes in the axial direction, and the inner ends of the screws are propped against the side parts of the pins.

Preferably, the pin and the pin hole are in clearance fit.

Preferably, the number of the single-channel connector assembly, the number of the pins, the number of the screws, the number of the hole positions, the number of the pin holes and the number of the screw holes are all 5.

Preferably, the distance between each hole site and the axis of the first shell is equal, the distance between each screw hole and the axis of the first shell is equal, the distance between two adjacent hole sites is equal, the distance between two adjacent screw holes is equal, and the distance between two adjacent pin holes is equal.

Preferably, the inner wall of the first shell at the tangent position between two adjacent hole sites is provided with a residual material cutting opening, and the residual material cutting opening is connected with the cavity wall of the quincunx cavity into a whole.

Preferably, the single pass connector assembly has a second housing with a housing slot formed therein; the pin holes and the screw holes are respectively positioned on the first shell at the outer side between the two adjacent hole positions, and the inner ends of the pins are simultaneously clamped into the shell grooves of the two adjacent single-channel connector assemblies; the side part of the pin is provided with a pin groove, and the inner end of the screw is jacked into the pin groove of the pin. The shell groove is an annular groove formed around the second shell, the pin groove is a flat groove, and the screw is a hexagon socket head cap screw.

Preferably, the front end of the first shell is provided with a plurality of through holes, the number of the through holes is the same as that of the single-channel connector assemblies, and the front ends of the single-channel connector assemblies are respectively positioned in the corresponding through holes; the through holes are communicated with corresponding hole positions in the quincunx cavities.

Preferably, the single-channel connector assembly further comprises a metal contact, an insulating inner cylinder, a metal insertion shaft, an insulating ring sheet, a first sealing ring and a second sealing ring; the metal insertion shaft is axially inserted into the insulating inner cylinder, wiring holes are respectively formed in two ends of the metal insertion shaft, and the rear end of the metal insertion shaft extends out of the insulating inner cylinder; the second shell is a metal shell, the front end of the second shell is sleeved outside the insulating inner cylinder, the insulating ring sheet is sleeved outside the rear end of the metal plug-in shaft, and the rear end of the second shell is sleeved outside the insulating ring sheet; the metal contact piece is sleeved outside the front end of the insulating inner cylinder and connected with the front end of the second shell; the first sealing ring is arranged between the second shell and the insulating inner cylinder, and the second sealing ring is arranged between the second shell and the wall of the through hole of the first shell.

Preferably, a threaded sleeve is further arranged outside the first shell, and a sealing ring and a clamping ring are arranged between the first shell and the threaded sleeve.

The invention has the beneficial effects that: firstly, a quincunx cavity is arranged at the rear end of a first shell, a plurality of hole sites arranged around the axis of the first shell are arranged in the quincunx cavity, the rear end of a single-channel connector assembly is respectively positioned in the corresponding hole sites, and the quincunx cavity can provide the hole sites with the maximized size, so that the single-channel connector assembly with the larger size at the rear end can be accommodated, and a corrugated pipe cable with the larger size can be further connected; for example, the invention can solve the problem that the space of the MQ5 multichannel radio frequency coaxial connector matched and connected with the 1/3 inch corrugated pipe cable is insufficient, and avoid the defects of complex assembly process, unstable intermodulation performance, overlarge attenuation index and the like of the 1/2 inch corrugated pipe cable converted from the 1/4 inch corrugated pipe cable. Secondly, a plurality of pin holes are radially formed in the rear end of the first shell, and after the pins are radially inserted into the pin holes, the inner ends of the pins clamp the side parts of the single-channel connector assembly; meanwhile, the rear end of the first shell is axially provided with a plurality of screw holes, the screw holes correspond to the positions of the pin holes one by one, and after the screws are axially screwed into the screw holes, the inner ends of the screws prop against the side parts of the pins, so that the pins fix the single-channel connector assemblies, the pins are fixed by the screws, and the rear ends of the single-channel connector assemblies can be stably installed in the quincunx cavities of the first shell through the integral cooperation of the plurality of pins and the plurality of screws. Thirdly, the single-channel connector assembly is very convenient to assemble and disassemble, when the single-channel connector assembly is installed, the single-channel connector assemblies are respectively inserted into the first shell from back to front, the single-channel connector assemblies are placed in the quincunx cavity, pins are respectively inserted into the pin holes of the first shell, and finally screws are respectively screwed into the screw holes of the first shell, so that the assembly of the single-channel connector assembly is completed; during the dismantlement, will screw out from the screw of first casing earlier, then take out the pin in the pin hole of first casing, take out single channel connector assembly at last in the quincunx cavity, accomplish the dismantlement of single channel connector assembly promptly to improve the replaceability of single channel connector assembly, reduce bad disability rate.

Drawings

Fig. 1 is a rear end front view of a multi-channel rf coaxial connector.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

Fig. 3 is a front end front view of the multi-channel rf coaxial connector.

Fig. 4 is a perspective view of the multi-channel rf coaxial connector.

Fig. 5 is a front view of the rear end of the first housing.

Fig. 6 is a sectional view taken along line B-B of fig. 5.

Fig. 7 is a sectional view taken along line C-C of fig. 5.

Figure 8 is a longitudinal cross-sectional view of a single channel connector assembly.

Fig. 9 is a perspective view of the pin.

Fig. 10 is a longitudinal sectional view of the screw.

Detailed Description

The structural and operational principles of the present invention are explained in further detail below with reference to the accompanying drawings.

The embodiment discloses a single-pair multichannel radio frequency coaxial connector, and takes the MQ5 multichannel radio frequency coaxial connector as a case, and the MQ5 multichannel radio frequency coaxial connector accommodates 5 single-channel connector components in a first shell. It should be noted that the present invention is not limited to MQ5 multichannel rf coaxial connectors, but is also applicable to MQ4 multichannel rf coaxial connectors or similar multichannel rf coaxial connectors, where the MQ4 multichannel rf coaxial connectors contain 4 single-channel connector assemblies in a first housing.

In the description of the present invention, it is to be understood that the terms "upper", "front", "rear", "inside", "outside", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the invention.

As shown in fig. 1-10, the present invention is a multi-channel rf coaxial connector, comprising a first housing 1, a plurality of single-channel connector components 2, a plurality of pins 3 and a plurality of screws 4, wherein the rear end of the first housing 1 has a quincunx cavity 11, and the quincunx cavity 11 has a plurality of holes 111 disposed around the axis of the first housing 1; the rear end of the first shell 1 is also provided with a plurality of pin holes 12 and a plurality of screw holes 13, the pin holes 12 are radially arranged, the screw holes 13 are axially arranged, and the pin holes 12 correspond to the screw holes 13 in one-to-one correspondence; the plurality of single-channel connector components 2 are respectively and axially arranged in the first shell 1, and the rear ends of the plurality of single-channel connector components 2 are respectively positioned in the corresponding hole positions 111; the pins 3 are respectively and radially inserted into the corresponding pin holes 12, and the inner ends of the pins 3 clamp the side part of the single-channel connector component 2; a plurality of screws 4 are respectively screwed into the corresponding screw holes in the axial direction, and the inner ends of the screws are propped against the side parts of the pins. In the invention, the inner end of the pin refers to that after the pin is inserted into the first shell 1, one end close to the axle center of the first shell is the inner end of the pin, and the other end close to the outer side of the first shell is the outer end of the pin; the inner end of the screw means that after the screw is screwed into the screw hole, the end close to the deepest part of the screw hole is the inner end of the screw, and the end close to the entrance of the screw hole is the outer end of the screw. In the invention, the quincunx cavity 11 can provide the hole site 111 with the maximized size, so that the single-channel connector assembly 2 with the larger size at the rear end can be accommodated, and a corrugated pipe cable (not shown in the figure) with the larger size can be further connected; for example, the invention can solve the problem that the space of the MQ5 multichannel radio frequency coaxial connector matched and connected with the 1/3 inch corrugated pipe cable is insufficient, and avoid the defects of complex assembly process, unstable intermodulation performance, overlarge attenuation index and the like of the 1/2 inch corrugated pipe cable converted from the 1/4 inch corrugated pipe cable. The single-channel connector component 2 is fixed through the pin 3, the pin 3 is fixed through the screw 4, the rear ends of the single-channel connector components 2 can be stably installed in the quincunx cavity 11 of the first shell 1 through the integral cooperation of the pins 3 and the screws 4, in addition, the screws 4 do not occupy the space in the quincunx cavity 11, and the space of the quincunx cavity 11 can be maximally utilized. The single-channel connector assembly 2 is very convenient to assemble and disassemble, during installation, the single-channel connector assemblies 2 are respectively inserted into the first shell 1 from back to front, the single-channel connector assemblies 2 are placed in the quincunx cavities 11, then the pins 3 are respectively inserted into the pin holes 12 of the first shell 1, and finally the screws 4 are respectively screwed into the screw holes 13 of the first shell 1, so that the assembly of the single-channel connector assemblies 2 is completed; during the dismantlement, earlier screw 4 is followed screw out in the screw 13 of first casing 1, then takes out pin 3 in the pin hole 12 of first casing 1, takes out single channel connector assembly 2 in plum blossom shape cavity 11 at last, accomplishes the dismantlement of single channel connector assembly 2 promptly to improve the replaceability of single channel connector assembly 2, reduce bad disability rate.

As a preferable mode of the invention, the pin 3 is in clearance fit with the pin hole 12, so that the pin 3 is more convenient to detach. First casing 1 is circular first casing 1, and hole site 111 is the circle hole site, and the pore wall in circle hole site and the lateral wall phase-match of single channel connector subassembly.

As shown in fig. 1-6, the structure of the present invention is preferably applied to MQ5 multichannel rf coaxial connectors, and the number of the single-channel connector assembly 2, the pin 3, the screw 4, the hole site 111, the pin hole 12 and the screw hole 13 is 5. The distance between each hole 111 and the axis of the first shell 1 is equal, the distance between each screw hole 13 and the axis of the first shell 1 is equal, the distance between two adjacent hole 111 is equal, the distance between two adjacent screw holes 13 is equal, and the distance between two adjacent pin holes 12 is equal.

As shown in fig. 1, 4-7, the inner wall of the first casing at the tangent between two adjacent hole sites 111 has a residue cutting opening 112, and the residue cutting opening 112 is connected with the cavity wall of the quincunx cavity 11. The structure directly removes the residual materials in the middle of the 5 hole sites 111, enables the adjacent hole sites 111 to be directly intersected, only keeps the circular arc structure of the part of the hole site 111, solves the problem of hole breakage during processing, and meanwhile removes the residual materials in the middle of the hole site 111, thereby effectively reducing the weight of a machined part.

As shown in fig. 2, 4, 8, the single pass connector assembly 2 has a second housing 21, the second housing 21 having a housing slot 211; the pin holes 12 and the screw holes 13 are respectively positioned on the first shell 1 at the outer side between two adjacent hole positions 111, and the inner ends of the pins 13 are simultaneously clamped into the shell grooves 211 of two adjacent single-channel connector assemblies 2; the side of the pin 3 is provided with a pin groove 31, and the inner end of the screw 4 is pressed into the pin groove 31 of the pin 3.

As shown in fig. 1, 2, 4, 9, and 10, the housing groove 211 is an annular groove formed around the second housing 21, the pin groove 31 is a flat groove, and the screw 4 is a hexagon socket screw. The annular groove structure is adopted, so that the second shell 21 is not limited by the angle in the hole position 111, and the inner ends 32 of the pins 3 can be clamped into the annular grooves. The screw 4 can be screwed conveniently by adopting the inner hexagonal screw 4.

As shown in fig. 2, 3, 6-8, the front end of the first housing 1 has a plurality of through holes 14, the number of the through holes 14 is the same as the number of the single-channel connector components 2, and the front ends of the plurality of single-channel connector components 2 are respectively located in the corresponding through holes 14; the through holes 14 communicate with corresponding hole sites 111 in the quincunx cavity 11. The single-channel connector component 2 further comprises a metal contact 22, an insulating inner cylinder 23, a metal insertion shaft 24, an insulating ring piece 25, a first sealing ring 26 and a second sealing ring 27; the metal plug shaft 24 is axially inserted into the insulating inner cylinder 23, both ends of the metal plug shaft 24 are respectively provided with a wiring hole 241, and the rear end of the metal plug shaft 24 extends out of the insulating inner cylinder 23; the second shell 21 is a metal shell, the front end of the second shell 21 is sleeved outside the insulating inner cylinder 23, the insulating ring piece 25 is sleeved outside the rear end of the metal plug-in shaft 24, and the rear end of the second shell 21 is sleeved outside the insulating ring piece 25; the metal contact piece 22 is sleeved outside the front end of the insulating inner cylinder 23, and the metal contact piece 22 is connected with the front end of the second shell 21; the first seal ring 26 is installed between the second housing 21 and the insulating inner cylinder 23, and the second seal ring 27 is installed between the second housing 21 and the wall of the through hole 14 of the first housing 1.

As shown in fig. 1 to 4, a screw sleeve 5 is further disposed outside the first housing 1, and a seal ring 6 and a snap ring 7 are disposed between the first housing 1 and the screw sleeve 5.

The above description is only a preferred embodiment of the present invention, and all the minor modifications, equivalent changes and modifications made to the above embodiment according to the technical solution of the present invention are within the scope of the technical solution of the present invention.