CN113991270B

CN113991270B - Manufacturing method of central conductor assembly and circulator

Info

Publication number: CN113991270B
Application number: CN202111264547.9A
Authority: CN
Inventors: 徐晶晶
Original assignee: Beijing Aerospace Micro Electronics Technology Co Ltd
Current assignee: Beijing Aerospace Micro Electronics Technology Co Ltd
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-05-03
Anticipated expiration: 2041-10-28
Also published as: CN113991270A

Abstract

The invention discloses a manufacturing method of a central conductor assembly and a circulator, and belongs to the technical field of microwave components. The manufacturing method of the central conductor assembly comprises the following steps: installing ferrite in the insulation limiting structure; the insulation limiting structure is wrapped through the inner conductor structure, the inner conductor structure comprises an inner conductor body and three inductance wires, the three inductance wires are circumferentially arranged on the periphery of the inner conductor body at equal intervals, the three inductance wires sequentially bypass the upper side of the insulation limiting structure to be crossed and woven to wrap the insulation limiting structure, and the ferrite is limited between the inner conductor body and the three inductance wires; in the process of alternately weaving the three inductance wires sequentially bypassing the upper side of the insulation limiting structure, the adjacent inductance wires are insulated and isolated through the sheet-shaped insulation structure; and limiting the connecting tail ends of the three inductance wires which are woven in a crossed manner to obtain a central conductor assembly. The manufacturing method of the central conductor assembly can improve the close degree of the ferrite and the inner conductor body.

Description

Manufacturing method of central conductor assembly and circulator

Technical Field

The invention relates to the technical field of microwave components, in particular to a manufacturing method of a central conductor assembly and a circulator.

Background

Circulators are important components of microwave systems, which ensure isolation between the transmitting and receiving parts of the microwave circuit; furthermore, the manufacturing method of the center conductor component in the circulator belongs to one of core parts for manufacturing the circulator, the existing center conductor component mainly comprises an inner conductor, ferrite and an insulating film, three inductance lines are arranged on the inner conductor, and the ferrite is attached to the inner conductor through the three inductance lines. Thus, a method for manufacturing a center conductor assembly capable of improving the adhesion between ferrite and an inner conductor is required.

Disclosure of Invention

The present invention is directed to overcoming at least one of the disadvantages of the prior art, and to providing a method for manufacturing a center conductor assembly capable of improving the adhesion between a ferrite and an inner conductor; in addition, an circulator is also provided.

The technical scheme for solving the technical problems is as follows: a method of manufacturing a center conductor assembly, comprising:

installing a ferrite in an insulation limiting structure, wherein an installation groove for installing the ferrite is formed in the insulation limiting structure, the upper end and the lower end of the installation groove are both open, and the ferrite is installed in the installation groove;

the insulation limiting structure is wrapped by an inner conductor structure, the inner conductor structure comprises an inner conductor body and three inductance wires, the three inductance wires are circumferentially arranged on the periphery of the inner conductor body at equal intervals, one end of the inductance wire is respectively connected with the inner conductor body to form a winding initial end, the other end of the inductance wire respectively extends outwards to form a free end, the tail ends of the free ends of the inductance wires are provided with connecting tail ends for connecting with a circuit board, the three inductance wires are sequentially wound around the upper side of the insulation limiting structure to be crossly woven to wrap the insulation limiting structure, the ferrite is limited between the inner conductor body and the three inductance lines, so that the top surface of the ferrite installed in the installation groove is in contact connection with the inductance line positioned at the lowest part, and the bottom surface of the ferrite is attached to the upper side surface of the inner conductor body;

in the process of alternately weaving the three inductance wires sequentially around the upper side of the insulation limiting structure, sheet-shaped insulation structures are respectively arranged between the inductance wires adjacent in the vertical direction, and the inductance wires adjacent in the vertical direction are insulated and isolated through the sheet-shaped insulation structures;

and limiting the connection tail ends of the three crossed and woven inductance wires, wherein the sheet-shaped insulation structure and the three inductance wires form a laminated mesh inductance structure of a conductor-sheet-shaped insulation structure-conductor-sheet-shaped insulation structure, and the central conductor assembly is obtained.

The invention has the beneficial effects that: in the manufacturing method of the central conductor assembly of the embodiment, the ferrite is installed in the insulation limiting structure, and the insulation limiting structure is provided with an installation groove for installing the ferrite, so that the ferrite can be installed in the installation groove; in addition, in the embodiment, the insulation limiting structure is wrapped by the inner conductor structure, three inductance lines are arranged on the periphery of the inner conductor body at equal intervals in the circumferential direction, so that the insulation limiting structure can be wrapped by the three inductance lines sequentially bypassing the upper side of the insulation limiting structure through cross weaving, the insulation limiting structure is limited between the inner conductor body and the three inductance lines, and the ferrite arranged in the installation groove is extruded by the three inductance lines, so that the bottom surface of the ferrite is attached to the upper side surface of the inner conductor body, the attachment degree of the ferrite and the inner conductor body is improved after the connection tail end of the inductance line is connected to a circuit board, and the phenomenon that the ferrite and the inner conductor body are loose in the using process to cause poor contact of the ferrite and the inner conductor body is avoided; when the central conductor component manufactured and molded by the manufacturing method manufactured and molded in the embodiment is used for forming the circulator, the performance index of the circulator is favorably ensured, the production yield of the circulator is improved, and the problem that the normal use of the circulator is influenced due to the fact that the ferrite and the inner conductor body are loosened in the using process is avoided.

In addition, on the basis of the above technical solution, the present invention may be further improved as follows, and may further have the following additional technical features.

According to an embodiment of the present invention, the method of manufacturing the center conductor assembly further includes:

the periphery of the insulation limiting structure is circumferentially provided with three first attaching planes at equal intervals, the three first attaching planes are arranged opposite to the three inductance lines one by one, an arc-shaped surface or a second attaching plane is arranged between every two adjacent first attaching planes, and the arc-shaped surface or the second attaching plane and the first attaching planes are alternately arranged at intervals;

in the process of sequentially winding the three inductance wires around the upper side of the insulation limiting structure in a cross weaving mode, the winding starting ends of the three inductance wires are respectively tightly attached to the first attaching plane, and the three inductance wires are wound around the upper side of the insulation limiting structure in a cross weaving mode to wrap the insulation limiting structure.

In the embodiment, the three first attaching planes are arranged on the periphery of the insulation limiting structure and are directly opposite to the three inductance wires one by one, and the three inductance wires are crossed and woven around the upper side of the insulation limiting structure, so that the winding initial ends of the inductance wires are tightly attached to the first attaching planes on the insulation limiting structure, and the central conductor assembly is compact and flat and does not bulge; when the center conductor component manufactured and molded by the manufacturing method in the embodiment is used for forming a circulator, the performance index of the circulator is favorably ensured, and the yield of the circulator production is also improved.

a first limiting clamping structure is arranged on the circumferential outer side wall of the insulating limiting structure;

a limiting clamping structure II which is used for being in adaptive clamping connection with the limiting clamping structure I is arranged on the inductance line corresponding to the limiting clamping structure I;

and in the process of sequentially bypassing the three inductance wires by the upper side cross weaving of the insulation limiting structure, connecting the second limiting clamping structure with the first limiting clamping structure in a clamping manner, so that the inductance wires are respectively tensioned and are respectively limited after being tensioned.

In the embodiment, the first limiting clamping structure is arranged on the insulating limiting structure, the second limiting clamping structure is arranged on the inductance wire, and when the inductance wire is wound on the insulating limiting structure, the second limiting clamping structure is clamped with the first limiting clamping structure, so that the inductance wire is clamped with the insulating limiting structure, the position of the inductance wire is limited, and the influence on the tight attaching degree of the inductance wire and the insulating limiting structure due to the fact that the inductance wire is loosened before being welded with a circuit board is avoided; furthermore, the first limit clamping structure is arranged on the insulation limit structure, and the ferrite is arranged in the installation groove, so that the ferrite can be reliably limited according to the shape of the installation groove which is suitable for the shape of the ferrite.

According to one embodiment of the invention, the first limiting clamping structure is a clamping groove, the second limiting clamping structure is a clamping bulge, and the clamping bulge is clamped in the clamping groove. The second limiting clamping structure in the embodiment is a clamping protrusion, so that the inductance wire can be conveniently processed and formed, and the processing difficulty of the inductance wire can be reduced.

According to one embodiment of the invention, the clamping protrusions are fixed in the clamping grooves by bonding through adhesives, so that the inductance wires are fixed respectively. The clamping protrusions in the embodiment are bonded and fixed in the clamping grooves through the adhesive, so that the position of the inductance wire is limited, the formed central conductor assembly only has the connection tail end of the inductance wire without limitation, the bottom surface of the ferrite is ensured to be reliably attached to the upper side surface of the inner conductor body when the connection tail end of the inductance wire is welded with the circuit board, the connection tail end of the inductance wire is also conveniently welded with the circuit board, the inductance wire is prevented from loosening or displacing in the process of welding the connection tail end of the inductance wire with the circuit board, the symmetry of the three inductance wires is improved, and the consistency of the performances of three ports formed by the connection tail ends of the three inductance wires on the central conductor assembly is improved; in addition, when the center conductor component manufactured and molded by the manufacturing method in this embodiment is used to form a circulator, it is beneficial to further ensure the performance index of the circulator and further improve the yield of the circulator.

According to one embodiment of the invention, a plurality of limiting clamping structures are arranged at intervals along the extending direction of the inductance wire, the limiting clamping structures are arranged in a one-to-one correspondence manner and can be respectively clamped with the limiting clamping structures arranged correspondingly, and the limiting clamping structures are respectively clamped with the limiting clamping structures.

Spacing joint structure interval in this embodiment is equipped with a plurality ofly, spacing joint structure two is equipped with a plurality ofly, be convenient for with a plurality of spacing joint structure two respectively with spacing joint structure joint, thereby further improvement inductance line and insulating limit structure joint's effect, ensure that the inductance line winds back on insulating limit structure, the position of inductance line is injectd, thereby ensure the spacing reliability of inductance line to ferrite, improve the degree of hugging closely of ferrite and inner conductor body, avoid ferrite and inner conductor body to produce not hard up and lead to ferrite and inner conductor body contact failure at the in-process that uses.

the inductor line is characterized in that a first pre-tightening clamping structure is arranged at the connecting tail end of the inductor line, the first pre-tightening clamping structure is clamped with a second pre-tightening clamping structure which is arranged on the circuit board and used for being clamped with the first pre-tightening clamping structure in a pre-tightening mode, and the first pre-tightening clamping structure and the second pre-tightening clamping structure are clamped and tightened after the inductor line bypasses the upper side of the insulation limiting structure.

In the embodiment, the first pre-tightening clamping structure is connected to the connection tail end of the inductance wire, and the second pre-tightening clamping structure is used for clamping the first pre-tightening clamping structure on the circuit board in a pre-tightening manner, so that the connection tail end of the inductance wire to be welded can be in pre-tightening clamping connection, the positions of the connection tail ends of the three inductance wires can be conveniently adjusted before the connection tail end of the inductance wire is welded, the symmetry of the connection tail ends of the three inductance wires is ensured, and the consistency of the performances of three ports formed by the connection tail ends of the three inductance wires on the central conductor assembly is favorably improved; in addition, the center conductor assembly is convenient to be welded on the circuit board.

According to one embodiment of the invention, the chip insulation structure is also provided on the upper side of the inductor line located uppermost. In this embodiment, the sheet-shaped insulating structure is also disposed on the upper side of the inductor wire located on the uppermost side, so that it is convenient to ensure that the inductor wire located on the uppermost side is insulated from other components disposed on the upper side thereof, and thus it is ensured that the laminated mesh-shaped inductor structure including the conductor-sheet-shaped insulating structure-conductor, which is formed by the sheet-shaped insulating structure and the three inductor wires, is not affected by other components disposed on the upper side of the inductor wire located on the uppermost side.

According to one embodiment of the invention, the connection end of the inductance wire is bent towards the inner conductor structure and extends downwards to exceed the insulation limiting structure, and the connection end of the inductance wire is used as a pin which is used for being connected with the circuit board. In this embodiment, the connection end of the inductor line is bent towards the inner conductor structure and extends downwards to exceed the insulation limiting structure, so that the connection end of the inductor line is conveniently connected with the circuit board.

In addition, in the circulator provided by this embodiment, the central conductor assembly is manufactured and molded by the above-mentioned manufacturing method of the central conductor assembly, and the central conductor assembly includes:

the inner conductor structure comprises an inner conductor body and three inductance wires, the three inductance wires are circumferentially arranged on the periphery of the inner conductor body at equal intervals, one ends of the inductance wires are respectively connected to the inner conductor body to form winding initial ends, the other ends of the inductance wires respectively extend outwards to form free ends, and the tail ends of the free ends of the inductance wires are provided with connecting tail ends used for being connected with a circuit board;

a ferrite;

the insulation limiting structure is provided with a mounting groove for mounting the ferrite, the upper end and the lower end of the mounting groove are both open, the ferrite is mounted in the mounting groove, three inductance wires sequentially bypass the upper side of the insulation limiting structure to be crossed and woven to wrap the insulation limiting structure, the insulation limiting structure is limited between the inner conductor body and the three inductance wires, the top surface of the ferrite mounted in the mounting groove is in contact connection with the inductance wire positioned at the lowest part, and the bottom surface of the ferrite is attached to the upper side surface of the inner conductor body;

the sheet-shaped insulation structure is arranged between the inductance wires and used for insulating and isolating the inductance wires adjacent in the vertical direction, the inductance wires adjacent in the vertical direction are respectively insulated and isolated through the sheet-shaped insulation structure, and the sheet-shaped insulation structure and the three inductance wires form a laminated mesh-shaped inductance structure of a conductor-sheet-shaped insulation structure-conductor-sheet-shaped insulation structure;

the circulator further includes:

the bottom surface of the inner conductor body is arranged right opposite to the circuit board, and the connecting tail ends of the inductance wires are respectively connected with the circuit board.

The central conductor assembly in the circulator of the embodiment comprises an insulation limiting structure, wherein the insulation limiting structure is provided with a mounting groove for mounting ferrite, so that the ferrite can be mounted in the mounting groove; in addition, three inductance wires are arranged on the periphery of the inner conductor body at equal intervals in the circumferential direction, so that the insulation limiting structure can be wrapped and limited between the inner conductor body and the three inductance wires by passing through the three inductance wires sequentially around the upper side of the insulation limiting structure in a crossed manner, and the ferrite arranged in the installation groove is extruded by the three inductance wires, so that the bottom surface of the ferrite is attached to the upper side surface of the inner conductor body, the attachment degree of the ferrite and the inner conductor body is improved after the connection tail end of the inductance wire is connected to a circuit board, and the ferrite and the inner conductor body are prevented from being loosened in the using process to cause poor contact between the ferrite and the inner conductor body; the performance index of the circulator is ensured, the production yield of the circulator is improved, and the problem that the normal use of the circulator is influenced due to the fact that the ferrite and the inner conductor body are loosened in the using process is avoided.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a center conductor assembly according to an embodiment of the present invention;

FIG. 2 is a front view of the center conductor assembly of FIG. 1 after being straightened;

FIG. 3 is a right side view of the center conductor assembly of FIG. 2;

FIG. 4 is a top view of the center conductor assembly of FIG. 2;

FIG. 5 is a schematic view of the center conductor assembly of FIG. 1 shown in disassembled form;

fig. 6 is a schematic structural diagram of an insulation limiting structure according to an embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. inner conductor structure, 2, insulating limit structure, 3, ferrite, 4, slice insulation system, 10, the inner conductor body, 11, first inductance line, 12, the second inductance line, 13, the third inductance line, 20, laminating plane I, 21, the arcwall face, 22, the mounting groove, 111, first joint is protruding, 112, second joint is protruding, 113, first joint end, 114, first pretension joint groove, 121, the third joint is protruding, 122, the fourth joint is protruding, 123, the second joint end, 124, the second pretension joint groove, 131, the fifth joint is protruding, 132, the sixth joint is protruding, 133, the third joint end, 134, the third pretension joint groove, 201, first joint groove, 211, the second joint groove.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In order to facilitate the explanation of the manufacturing method, the present embodiment provides a structure of a center conductor assembly manufactured by the manufacturing method of the center conductor assembly of the present embodiment, and as shown in fig. 1 to 5, the manufacturing method of the center conductor assembly includes:

installing a ferrite 3 in an insulation limiting structure 2, wherein the insulation limiting structure 2 is provided with an installation groove 22 for installing the ferrite 3, the upper end and the lower end of the installation groove 22 are both open, and the ferrite 3 is installed in the installation groove 22;

the insulation limiting structure 2 is wrapped through the inner conductor structure 1, the inner conductor structure 1 comprises an inner conductor body 10 and three inductance wires, the three inductance wires are circumferentially arranged on the periphery of the inner conductor body 10 at equal intervals, one ends of the inductance wires are respectively connected to the inner conductor body 10 to form winding initial ends, the other ends of the inductance wires respectively extend outwards to form free ends, the tail ends of the free ends of the inductance wires are provided with connecting tail ends used for being connected with a circuit board, the three inductance wires are sequentially wound around the upper side of the insulation limiting structure 2 to be crossed and woven to wrap the insulation limiting structure 2, the ferrite 3 is limited between the inner conductor body 10 and the three inductance wires, so that the top surface of the ferrite 3 arranged in the installation groove 22 is in contact connection with the inductance wire positioned at the lowest part, and the bottom surface of the ferrite 3 is attached to the upper side surface of the inner conductor body 10;

in the process of alternately weaving the three inductance wires sequentially around the upper side of the insulation limiting structure 2, sheet-shaped insulation structures 4 are respectively arranged between the inductance wires adjacent in the vertical direction, and the inductance wires adjacent in the vertical direction are insulated and isolated through the sheet-shaped insulation structures 4;

and limiting the connecting tail ends of the three inductance wires which are woven in a crossed mode, and forming a laminated mesh inductance structure of a conductor-sheet insulation structure 4-a conductor-sheet insulation structure 4 by the sheet insulation structure 4 and the three inductance wires to obtain a central conductor assembly.

In the present embodiment, as shown in fig. 1 to 5, in the manufacturing method of the center conductor assembly, the ferrite 3 is installed in the insulation limit structure 2, and the insulation limit structure 2 is provided with an installation groove 22 for installing the ferrite 3, so that the ferrite 3 can be installed in the installation groove 22; in addition, in the embodiment, the insulation limit structure 2 is wrapped by the inner conductor structure 1, three inductance lines are arranged on the periphery of the inner conductor body 10 at equal intervals in the circumferential direction, so that the insulation limit structure 2 can be wrapped by the three inductance lines sequentially bypassing the upper side of the insulation limit structure 2 through cross weaving, the insulation limit structure 2 is limited between the inner conductor body 10 and the three inductance lines, and the ferrite 3 installed in the installation groove 22 is extruded by the three inductance lines, so that the bottom surface of the ferrite 3 is attached to the upper side surface of the inner conductor body 10, which is beneficial to improving the attaching degree of the ferrite 3 and the inner conductor body 10 after the connection tail end of the inductance line is connected to a circuit board, and the ferrite 3 is prevented from being loose in the use process of the ferrite 3 and the inner conductor body 10 to cause poor contact of the ferrite 3 and the inner conductor body 10; when the center conductor component manufactured and molded by the manufacturing method in this embodiment is used for forming a circulator, it is beneficial to ensure the performance index of the circulator, and at the same time, it also improves the yield of the circulator, and it prevents the ferrite 3 and the inner conductor body 10 from loosening during the use process to affect the normal use of the circulator.

In this embodiment, as shown in fig. 1 to 3 and 5, the inner conductor body 10 in this embodiment is a sheet-like structure, three inductance lines are respectively a first inductance line 11, a second inductance line 12 and a third inductance line 13 which are circumferentially arranged at equal intervals, and one end of each of the first inductance line 11, the second inductance line 12 and the third inductance line 13 is connected to the outer side of the inner conductor body 10; further, the first inductance line 11, the second inductance line 12 and the third inductance line 13 of the present embodiment are similar in structure, and the difference is that in the present embodiment, the first inductance line 11 is wound on the insulation limiting structure 2 first, the second inductance line 12 is wound on the insulation limiting structure 2 after the first inductance line 11, the third inductance line 13 is wound on the insulation limiting structure 2 after the second inductance line 12, and the sheet-shaped insulation structures 4 are respectively placed on the upper sides of the first inductance line 11 and the second inductance line 12, so that the length of the second inductance line 12 illustrated in the present embodiment is slightly greater than the length of the first inductance line 11, and the length of the third inductance line 13 is slightly greater than the length of the second inductance line 12. Of course, the first inductance line 11, the second inductance line 12 and the third inductance line 13 may be configured to have the same structure and length, and when the first inductance line 11, the second inductance line 12 and the third inductance line 13 are respectively welded on the circuit board, the lengths of the connection ends of the first inductance line 11, the second inductance line 12 and the third inductance line 13 welded on the circuit board are respectively adjusted, so that the first inductance line 11, the second inductance line 12 and the third inductance line 13 are tensioned.

In addition, in the present embodiment, before the first inductance line 11, the second inductance line 12 and the third inductance line 13 are wound on the insulation limit structure 2, the first inductance line 11, the second inductance line 12 and the third inductance line 13 are all in a strip-shaped unfolded structure; further, the first inductance line 11, the second inductance line 12 and the third inductance line 13 of the present embodiment are all open in the middle, and the first inductance line 11, the second inductance line 12 and the third inductance line 13 may also be arranged in other structures.

In this embodiment, as shown in fig. 5, the ferrite 3 in this embodiment has a cylindrical structure, the mounting groove 22 has a circular structure, and the ferrite 3 is fittingly mounted in the mounting groove 22. Further, in the present embodiment, in order to improve the adhesion between the ferrite 3 and the inner conductor body 10, the thickness of the ferrite 3 in the present embodiment is slightly greater than the height of the mounting groove 22; further, in the present embodiment, in order to better limit the position of the ferrite 3, the ferrite 3 in the present embodiment is installed in the installation groove 22 in an interference fit manner. In addition, the ferrite 3 in the present embodiment can be configured in other shapes, and correspondingly, the mounting groove 22 is adapted to the structure of the ferrite 3 for mounting the ferrite 3.

In the present embodiment, as shown in fig. 1 to 3 and 5, the sheet-shaped insulating structure 4 in the present embodiment is a circular structure, and the diameter of the sheet-shaped insulating structure 4 is slightly larger than the diameter of the ferrite 3, so as to insulate and isolate the three inductance lines; in addition, the sheet-like insulating structure 4 in the present embodiment is specifically an insulating film, and the sheet-like insulating structure 4 may also be provided in other structures.

In one embodiment of the present invention, as shown in fig. 4 and 6, the method for manufacturing the center conductor assembly further includes:

three first attaching planes 20 are arranged on the periphery of the insulation limiting structure 2 at equal intervals in the circumferential direction, the three first attaching planes 20 are arranged opposite to the three inductance lines one by one, arc-shaped surfaces 21 are respectively arranged between the two adjacent first attaching planes 20, and the arc-shaped surfaces 21 and the first attaching planes 20 are alternately arranged at intervals;

in the process of alternately weaving the three inductance wires around the upper side of the insulation limiting structure 2 in sequence, the winding starting ends of the three inductance wires are respectively attached to the first attaching plane 20, and the three inductance wires are wrapped around the insulation limiting structure 2 in the process of alternately weaving the upper side of the insulation limiting structure 2.

Furthermore, a second attaching plane can be arranged between the two adjacent first attaching planes 20 respectively, the second attaching planes and the first attaching planes 20 are alternately arranged at intervals, and the winding starting ends of the inductance lines are attached to the first attaching planes 20 respectively; it should be noted that, in this embodiment, a structure in which the second attaching plane is respectively disposed between the two adjacent first attaching planes 20 is not illustrated, a specific structure of the second attaching plane may be set to be the same as that of the first attaching plane 20, and the second attaching plane may also be set to be another structure, so that it is convenient to attach to the three inductance lines.

In this embodiment, as shown in fig. 4 and 6, three first attaching planes 20 are arranged on the peripheral sides of the insulation limiting structure 2, which are directly opposite to the three inductance wires one by one, and the three inductance wires are woven by crossing around the upper side of the insulation limiting structure 2, so that the winding start ends of the inductance wires are tightly attached to the first attaching planes 20 on the insulation limiting structure 2, and the central conductor assembly is compact and flat and does not bulge; when the center conductor component manufactured and molded by the manufacturing method in the embodiment is used for forming a circulator, the performance index of the circulator is favorably ensured, and the yield of the circulator production is also improved.

In one embodiment of the present invention, as shown in fig. 1 to 5, the method for manufacturing the center conductor assembly further includes:

a first limiting clamping structure is arranged on the circumferential outer side wall of the insulating limiting structure 2;

in the process of alternately weaving the three inductance wires around the upper side of the insulation limiting structure 2 in sequence, the limiting clamping structure II is clamped with the limiting clamping structure I, so that the inductance wires are respectively tensioned and are respectively limited for the tensioned inductance wires.

In this embodiment, as shown in fig. 1 to 5, a first limit clamping structure is arranged on an insulation limit structure 2, and a second limit clamping structure is arranged on an inductance line, so that when the inductance line is wound on the insulation limit structure 2, the second limit clamping structure is clamped with the first limit clamping structure, the inductance line is clamped with the insulation limit structure 2, the position of the inductance line is limited, and the situation that the tightness between the inductance line and the insulation limit structure 2 is affected due to looseness before the inductance line is not welded with a circuit board is avoided; furthermore, the first limit clamping structure is arranged on the insulation limit structure 2, and the ferrite 3 is arranged in the installation groove 22, so that the shape of the installation groove 22 can be properly arranged according to the shape of the ferrite 3, and the ferrite 3 can be reliably limited.

In an embodiment of the present invention, as shown in fig. 1 to 3 and 5, the first limit clamping structure is a clamping groove, and the second limit clamping structure is a clamping protrusion, and the clamping protrusion is clamped in the clamping groove. The second limiting clamping structure in the embodiment is a clamping protrusion, so that the inductance wire can be conveniently processed and formed, and the processing difficulty of the inductance wire can be reduced.

In an embodiment of the present invention, as shown in fig. 1 to 3 and 5, the clamping protrusions are fixed in the clamping grooves by bonding with an adhesive, so as to fix the inductance lines respectively. The clamping protrusions in the embodiment are bonded and fixed in the clamping grooves through the adhesive, so that the position of the inductance wire is limited, the formed central conductor assembly only has the connection tail end of the inductance wire without limitation, the bottom surface of the ferrite 3 is ensured to be reliably attached to the upper side surface of the inner conductor body 10 when the connection tail end of the inductance wire is welded with a circuit board, the connection tail end of the inductance wire is also conveniently welded with the circuit board, the inductance wire is prevented from loosening or displacing in the process of welding the connection tail end of the inductance wire with the circuit board, the symmetry of the three inductance wires is improved, and the consistency of the performances of three ports formed by the connection tail ends of the three inductance wires on the central conductor assembly is improved; in addition, when the center conductor component manufactured and molded by the manufacturing method in this embodiment is used to form a circulator, it is beneficial to further ensure the performance index of the circulator and further improve the yield of the circulator.

According to an embodiment of the invention, as shown in fig. 1 to 3 and 5, a plurality of limiting clamping structures are arranged at intervals along the extending direction of the inductance line, the plurality of limiting clamping structures are arranged in a one-to-one correspondence manner with the first limiting clamping structures and can be respectively clamped with the first limiting clamping structures, and the plurality of first limiting clamping structures are respectively clamped with the second limiting clamping structures.

In this embodiment, as shown in fig. 1 to 3, fig. 5, spacing joint structure interval is equipped with a plurality ofly, spacing joint structure two is equipped with a plurality ofly, be convenient for with a plurality of spacing joint structure two respectively with spacing joint structure one joint, thereby further improve the effect of inductance line and insulating limit structure 2 joint, ensure that the inductance line winds back on insulating limit structure 2, the position of inductance line is injectd, thereby ensure inductance line to the spacing reliability of ferrite 3, improve the degree of hugging closely of ferrite 3 and inner conductor body 10, avoid ferrite 3 and inner conductor body 10 to produce not hard up and lead to ferrite 3 and inner conductor body 10 contact failure in the in-process of using.

In this embodiment, as shown in fig. 1 and 5, the three inductance lines are respectively a first inductance line 11, a second inductance line 12 and a third inductance line 13 which are circumferentially arranged at equal intervals, the first limit clamping structure is a clamping groove, the second limit clamping structure is a clamping protrusion, the plurality of second limit clamping structures arranged on the first inductance line 11 include a first clamping protrusion 111 and a second clamping protrusion 112, the first clamping protrusion 111 is connected to one end of the first inductance line 11 close to the inner conductor body 10, the second clamping protrusion 112 is connected to the connecting end of the first inductance line 11 and connected to the first inductance line 11, the first clamping protrusion 111 and the second clamping protrusion 112 are arranged on the same side, and the two sides of the first inductance line 11 are respectively provided with a plurality of first clamping protrusions 111 and second clamping protrusions 112; in this embodiment, the clamping groove for clamping with the first clamping protrusion 111 is a first clamping groove 201, and the clamping groove for clamping with the second clamping protrusion 112 is a second clamping groove 211; furthermore, the first clamping protrusion 111 and the second clamping protrusion 112 shown in the figure of the present embodiment are respectively provided with four, and the first clamping protrusion 111 and the second clamping protrusion 112 may also be provided with five or other numbers.

Further, as shown in fig. 1 and fig. 5, in this embodiment, the second plurality of limiting clamping structures disposed on the second inductance line 12 include a third clamping protrusion 121 and a fourth clamping protrusion 122, the third clamping protrusion 121 is connected to one end of the second inductance line 12 close to the inner conductor body 10, the third clamping protrusion 121 is connected to the connection end of the second inductance line 12 and connected to the second inductance line 12, the third clamping protrusion 121 and the fourth clamping protrusion 122 are disposed on the same side, and two sides of the second inductance line 12 are respectively provided with a plurality of third clamping protrusions 121 and fourth clamping protrusions 122; in this embodiment, the clamping groove for clamping with the third clamping protrusion 121 is a first clamping groove 201, and the clamping groove for clamping with the fourth clamping protrusion 122 is a second clamping groove 211; further, in the embodiment, four third engaging protrusions 121 and four fourth engaging protrusions 122 are respectively provided, and five or other numbers of third engaging protrusions 121 and fourth engaging protrusions 122 may also be provided.

Further, as shown in fig. 1 and fig. 5, in this embodiment, the second plurality of limiting clamping structures disposed on the third inductance line 13 include a fifth clamping protrusion 131 and a sixth clamping protrusion 132, the fifth clamping protrusion 131 is connected to one end of the third inductance line 13 close to the inner conductor body 10, the fifth clamping protrusion 131 is connected to the connection end of the third inductance line 13 and connected to the third inductance line 13, the fifth clamping protrusion 131 and the sixth clamping protrusion 132 are disposed on the same side, and a plurality of fifth clamping protrusions 131 and a plurality of sixth clamping protrusions 132 are respectively disposed on two sides of the third inductance line 13; in this embodiment, the clamping groove for clamping with the fifth clamping protrusion 131 is a first clamping groove 201, and the clamping groove for clamping with the sixth clamping protrusion 132 is a second clamping groove 211; furthermore, the fifth clamping protrusion 131 and the sixth clamping protrusion 132 shown in the embodiment are respectively provided with four, and five or other numbers of the fifth clamping protrusion 131 and the sixth clamping protrusion 132 can be provided.

It should be noted that, in this embodiment, the second limiting clamping structures respectively disposed on the first inductance line 11, the second inductance line 12, and the third inductance line 13 have the same structure, the second limiting clamping structure is in an unfolded structure before being clamped with the first limiting clamping structure, and the second limiting clamping structure is in a bent structure after being clamped in the first limiting clamping structure; furthermore, the first limiting clamping structure and the second limiting clamping structure in this embodiment may have various structures, and the first limiting clamping structure and the second limiting clamping structure may also have various setting modes, so that the first inductance line 11, the second inductance line 12 and the third inductance line 13 are conveniently and respectively limited and fixed.

the inductor wire is connected with the circuit board through the insulating limiting structure 2, and the inductor wire is connected with the circuit board through the insulating limiting structure 2.

In this embodiment, as shown in fig. 1 to 5, by connecting a first pre-tightening clamping structure to a connection end of an inductance wire and by clamping the first pre-tightening clamping structure to a second pre-tightening clamping structure on a circuit board, the connection end of the inductance wire to be welded can be pre-tightened and clamped, so that the positions of the connection ends of the three inductance wires can be adjusted before the connection end of the inductance wire is welded, the symmetry of the connection ends of the three inductance wires is ensured, and the consistency of the performance of three ports formed by the connection ends of the three inductance wires on the central conductor assembly is improved; in addition, the center conductor assembly is convenient to be welded on the circuit board.

In this embodiment, as shown in fig. 2 and fig. 5, the three inductance lines are respectively a first inductance line 11, a second inductance line 12, and a third inductance line 13 that are circumferentially and equidistantly arranged at an interval, a connection end connected to the first inductance line 11 is a first connection end 113, a first pre-tightening clamping structure that is arranged on the first connection end 113 is specifically a first pre-tightening clamping groove 114, the first pre-tightening clamping groove 114 is provided with a plurality of grooves, the first pre-tightening clamping groove 114 is a circular structure, and correspondingly, a second pre-tightening clamping structure that is arranged on the circuit board of this embodiment is a clamping convex column, and the clamping convex column is clamped with the first pre-tightening clamping groove 114, so as to pre-tighten the first inductance line 11. Further, in this embodiment, the connection end connected to the second inductance line 12 is a second connection end 123, a first pre-tightening clamping structure arranged on the second connection end 123 is specifically a second pre-tightening clamping groove 124, and a plurality of second pre-tightening clamping grooves 124 are arranged; further, in this embodiment, the connection end connected to the third inductance line 13 is a third connection end 133, a first pre-tightening clamping structure arranged on the third connection end 133 is specifically a third pre-tightening clamping groove 134, and the number of the third pre-tightening clamping grooves 134 is plural; in addition, the structures of the second pre-tightening latch groove 124 and the third pre-tightening latch groove 134 in this embodiment are the same as those of the first pre-tightening latch groove 114, and correspondingly, the circuit board is provided with latch bosses corresponding to the second pre-tightening latch groove 124 and the third pre-tightening latch groove 134, respectively. It should be noted that, in this embodiment, the structures of the first pre-tightening clamping structures arranged on the first connection terminal 113, the second connection terminal 123 and the third connection terminal 133 are the same, and the first pre-tightening clamping structures may also be set to different structures, and in addition, the first pre-tightening clamping structures may also be set to convex clamping structures protruding outward, so that the connection terminals of the inductance lines can be connected with the circuit board in a pre-tightening manner; in this embodiment, the circuit board is not illustrated, and the specific structure of the circuit board may refer to the prior art, which is not described herein again.

In one embodiment of the present invention, as shown in fig. 1 to 5, a chip insulation structure 4 is also disposed on the upper side of the inductor line located on the uppermost side. In this embodiment, by providing the sheet-like insulating structure 4 also on the upper side of the inductor wire located on the uppermost side, it is convenient to ensure that the inductor wire located on the uppermost side is insulated from other components provided on the upper side thereof, thereby ensuring that the laminated mesh-like inductor structure of the sheet-like insulating structure 4-conductor-sheet-like insulating structure 4-conductor, which is formed by the sheet-like insulating structure 4 and the three inductor wires, is not affected by other components on the upper side of the inductor wire located on the uppermost side.

In one embodiment of the present invention, as shown in fig. 1 to 5, the connection end of the inductance line is bent toward the inner conductor structure 1 and extends downward beyond the insulation limit structure 2, and the connection end of the inductance line is used as a pin for connecting with a circuit board. In this embodiment, the connection end of the inductor line is bent toward the inner conductor structure 1 and extends downward beyond the insulation limiting structure 2, so that the connection end of the inductor line is conveniently connected with the circuit board.

In addition, the circulator provided by the embodiment includes: the central conductor assembly is manufactured and molded by the manufacturing method of the central conductor assembly, and the central conductor assembly comprises:

the inner conductor structure 1 comprises an inner conductor body 10 and three inductance wires, wherein the three inductance wires are arranged on the periphery of the inner conductor body 10 at equal intervals in the circumferential direction, one ends of the inductance wires are respectively connected to the inner conductor body 10 to form winding initial ends, the other ends of the inductance wires respectively extend outwards to form free ends, and the tail ends of the free ends of the inductance wires are provided with connecting tail ends used for being connected with a circuit board;

ferrite 3;

the insulation limiting structure 2 is provided with a mounting groove 22 for mounting the ferrite 3, the upper end and the lower end of the mounting groove 22 are both open, the ferrite 3 is mounted in the mounting groove 22, the three inductance wires are sequentially woven in a crossed mode around the upper side of the insulation limiting structure 2 to wrap the insulation limiting structure 2, the insulation limiting structure 2 is limited between the inner conductor body 10 and the three inductance wires, the top surface of the ferrite 3 mounted in the mounting groove 22 is in contact connection with the inductance wire located at the lowest position, and the bottom surface of the ferrite 3 is attached to the upper side surface of the inner conductor body 10;

the sheet-shaped insulation structure 4 is used for being arranged between the inductance lines to insulate and isolate the inductance lines adjacent in the vertical direction, the inductance lines adjacent in the vertical direction are insulated and isolated through the sheet-shaped insulation structure 4, and the sheet-shaped insulation structure 4 and the three inductance lines form a laminated net-shaped inductance structure of a conductor-sheet-shaped insulation structure 4-a conductor-sheet-shaped insulation structure 4;

the circulator further includes:

the bottom surface of the inner conductor body 10 is arranged right opposite to the circuit board, and the connection tail ends of the inductance lines are respectively connected with the circuit board.

The central conductor assembly in the circulator of the embodiment comprises an insulation limiting structure 2, wherein the insulation limiting structure 2 is provided with a mounting groove 22 for mounting the ferrite 3, so that the ferrite 3 can be mounted in the mounting groove 22; in addition, three inductance wires are arranged on the periphery of the inner conductor body 10 at equal intervals in the circumferential direction, so that the insulation limiting structure 2 can be wrapped and limited between the inner conductor body 10 and the three inductance wires by passing through the three inductance wires sequentially around the upper side of the insulation limiting structure 2 in a cross weaving manner, the ferrite 3 arranged in the installation groove 22 is extruded by the three inductance wires, the bottom surface of the ferrite 3 is attached to the upper side surface of the inner conductor body 10, the attachment degree of the ferrite 3 and the inner conductor body 10 is improved after the connection tail end of the inductance wires is connected to a circuit board, and the ferrite 3 and the inner conductor body 10 are prevented from being loosened in the using process to cause poor contact between the ferrite 3 and the inner conductor body 10; the performance index of the circulator is ensured, the production yield of the circulator is improved, and the problem that the normal use of the circulator is influenced by the looseness generated in the use process of the ferrite 3 and the inner conductor body 10 is avoided.

In this embodiment, the circulator further includes other components, the central conductor component is a core component of the circulator, the central conductor component is soldered on the circuit board by soldering, the prior art may be referred to for a specific structure of the circulator, and in addition, the prior art may be referred to for a specific connection between the central conductor component and the circuit board, which is not described herein again. It should be noted that, in this embodiment, a circulator is not illustrated, and in addition, the circulator in this embodiment is specifically a lumped-parameter circulator.

In addition, in addition to the technical solutions disclosed in the present embodiment, for other structures of the ferrite 3, the circuit board, the circulator, the operation principle thereof, and the like in the present invention, reference may be made to conventional technical solutions in the technical field, and these conventional technical solutions are not the gist of the present invention, and the present invention is not set forth in detail herein.

In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

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

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method of making a center conductor assembly, comprising:

2. The method of manufacturing a center conductor assembly of claim 1, further comprising:

3. The method of manufacturing a center conductor assembly of claim 1, further comprising:

4. The method for manufacturing the center conductor assembly according to claim 3, wherein the first limiting clamping structure is a clamping groove, and the second limiting clamping structure is a clamping protrusion, and the clamping protrusion is clamped in the clamping groove.

5. The method as claimed in claim 4, wherein the fastening protrusions are fixed in the fastening grooves by adhesive to fasten the inductance lines.

6. The manufacturing method of the central conductor assembly according to claim 3, wherein a plurality of limiting clamping structures are arranged at intervals, a plurality of limiting clamping structures are arranged at intervals along the extending direction of the inductance wire, the limiting clamping structures are arranged in a one-to-one correspondence mode and can be respectively clamped with the limiting clamping structures arranged correspondingly, and the limiting clamping structures are respectively clamped with the limiting clamping structures.

7. The method of manufacturing a center conductor assembly according to any one of claims 1 to 6, further comprising:

8. The method of manufacturing a center conductor assembly according to any one of claims 1 to 6, wherein the chip insulation structure is also provided on an upper side of the inductance line located on the uppermost side.

9. The method of manufacturing a center conductor assembly according to any one of claims 1 to 6, wherein the connection end of the inductor wire is bent toward the inner conductor structure and extends downward beyond the insulation displacement structure, and the connection end of the inductor wire is used as a pin for connecting with the circuit board.

10. An circulator, comprising:

a center conductor assembly manufactured by the manufacturing method of the center conductor assembly according to any one of claims 1 to 9, the center conductor assembly comprising:

a ferrite;

the circulator further includes: