阅读说明：本技术 贴片式环行器 (Surface mount circulator ) 是由 付松 徐颖龙 曹艳杰 张昕 胡莎 虞成城 于 2020-03-27 设计创作，主要内容包括：本发明公开了一种贴片式环行器,包括铁氧体,还包括一体式中心导体,所述一体式中心导体包括主体部和分支,所述主体部和分支围成与所述铁氧体相适配的容纳腔。中心导体为一体式结构,可有效节省环行器的内部空间,减小环行器的整体体积,有利于环行器朝小型化方向发展。(The invention discloses a patch type circulator, which comprises a ferrite and an integrated central conductor, wherein the integrated central conductor comprises a main body part and branches, and the main body part and the branches enclose a containing cavity matched with the ferrite. The central conductor is of an integrated structure, so that the internal space of the circulator can be effectively saved, the overall volume of the circulator is reduced, and the development of the circulator towards miniaturization is facilitated.)

1. The patch type circulator comprises a ferrite body and is characterized by further comprising an integrated central conductor, wherein the integrated central conductor comprises a main body part and branches, and the main body part and the branches enclose a containing cavity matched with the ferrite body.

2. The patch circulator of claim 1 wherein the number of branches is three, and the three branches are disposed at an angle of 120 ° to each other.

3. The patch circulator of claim 2, wherein each of the branches has a PI film disposed thereon, and a projection of a center of the PI film in a vertical direction overlaps a projection of a center of the ferrite in the vertical direction.

4. The patch type circulator of claim 1, further comprising a metal injection molding assembly, wherein the metal injection molding assembly is provided with a receiving position adapted to the integrated central conductor.

5. The patch circulator of claim 4, further comprising a capacitor and a resistor, wherein the capacitor is respectively soldered to the integrated central conductor and the metal injection molding assembly, and the resistor is respectively soldered to the integrated central conductor and the metal injection molding assembly.

6. The patch circulator of claim 4, further comprising an upper housing and a lower housing, wherein the metal injection molded component is disposed between the upper housing and the lower housing.

7. The patch circulator of claim 6, further comprising a permanent magnet disposed on a side of the upper housing proximate to the lower housing.

8. The patch circulator of claim 6, wherein the upper housing and the lower housing are welded together.

9. The patch circulator of claim 1, wherein the integral center conductor is die cut in a molded arrangement.

10. The patch circulator of claim 3, wherein the PI film is in a die cut configuration.

Technical Field

The invention relates to the technical field of circulators, in particular to a patch type circulator.

Background

With the popularization of microwave communication systems, circulators have been an important component of microwave communication systems. The circulator is widely applied to a 5G working base station, and the future demand is huge. However, the existing circulator structure has a large overall volume, which is not favorable for the development of the circulator towards miniaturization.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the patch type circulator is small in overall size.

In order to solve the technical problems, the invention adopts the technical scheme that:

The patch type circulator comprises a ferrite body and an integrated central conductor, wherein the integrated central conductor comprises a main body part and branches, and the main body part and the branches enclose a containing cavity matched with the ferrite body.

Further, the number of the branches is three, and the three branches are arranged at an angle of 120 degrees with each other.

Furthermore, each branch is provided with a PI film, and the projection of the center of the PI film in the vertical direction is overlapped with the projection of the center of the ferrite in the vertical direction.

Furthermore, the integrated central conductor is characterized by further comprising a metal injection molding assembly, wherein the metal injection molding assembly is provided with an accommodating position matched with the integrated central conductor.

Further, still include electric capacity and resistance, electric capacity respectively with integral type central conductor and metal subassembly welded connection that moulds plastics, resistance respectively with integral type central conductor and metal subassembly welded connection that moulds plastics.

Further, still include upper housing and lower casing, the metal subassembly of moulding plastics set up in between upper housing and the lower casing.

Furthermore, the permanent magnet is arranged on one side surface of the upper shell, which is close to the lower shell.

Further, the upper shell and the lower shell are connected in a welding mode.

Further, the integrated central conductor is die-cut and formed.

Further, the PI film is die cut into a shaped configuration.

The invention has the beneficial effects that: the central conductor is of an integrated structure, so that the internal space of the circulator can be effectively saved, the overall volume of the circulator is reduced, and the development of the circulator towards miniaturization is facilitated.

Drawings

Fig. 1 is an exploded view of a structure of a patch circulator according to a first embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a metal component in a patch circulator according to a first embodiment of the present disclosure;

Fig. 3 is a schematic partial structure diagram of a patch circulator according to a first embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a chip-on-chip circulator in a manufacturing process according to a first embodiment of the present invention;

Fig. 5 is another schematic structural diagram of a portion of a patch circulator according to a first embodiment of the present invention;

Fig. 6 is another schematic structural diagram of a portion of a patch circulator according to a first embodiment of the present invention;

Fig. 7 is a schematic view of an overall structure of a patch circulator according to a first embodiment of the present invention.

Description of reference numerals:

1. A ferrite; 2. an integral center conductor; 21. a main body portion; 22. branching; 23. an accommodating chamber; 3. a PI film; 4. a metal injection molding assembly; 41. a metal member; 42. an accommodation site; 5. a capacitor; 6. a resistance; 7. an upper housing; 8. a lower housing; 9. a permanent magnet; 10. a center conductor assembly.

Detailed Description

In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

The most key concept of the invention is as follows: the central conductor is of an integrated structure, so that the internal space of the circulator can be effectively saved, and the overall volume of the circulator is reduced.

Referring to fig. 1, a patch circulator includes a ferrite 1, and further includes an integrated central conductor 2, where the integrated central conductor 2 includes a main body 21 and a branch 22, and the main body 21 and the branch 22 enclose a receiving cavity 23 adapted to the ferrite 1.

From the above description, the beneficial effects of the present invention are: the central conductor is of an integrated structure, so that the internal space of the circulator can be effectively saved, and the overall volume of the circulator is reduced; the branches can be bent along the outer side wall of the ferrite to form a containing cavity matched with the ferrite.

Further, the number of the branches 22 is three, and the three branches 22 are disposed at an angle of 120 ° with each other.

As can be seen from the above description, a welding portion may be disposed at an end of the branch away from the main body portion to be welded and connected with other components.

Further, a PI film 3 is disposed on each of the branches 22, and a projection of a center of the PI film 3 in the vertical direction overlaps a projection of a center of the ferrite 1 in the vertical direction.

As can be seen from the above description, adjacent two branches are separated in the vertical direction by the PI film.

Furthermore, the cable connector further comprises a metal injection molding component 4, wherein the metal injection molding component 4 is provided with an accommodating position 42 matched with the integrated central conductor 2.

As can be seen from the above description, the metal injection-molded component can be obtained by injection-molding a metal piece.

Further, still include electric capacity 5 and resistance 6, electric capacity 5 respectively with integral type central conductor 2 and the welding connection of metal subassembly 4 of moulding plastics, resistance 6 respectively with integral type central conductor 2 and the welding connection of metal subassembly 4 of moulding plastics.

Further, still include upper casing 7 and lower casing 8, metal injection moulding subassembly 4 set up in between upper casing 7 and lower casing 8.

As can be seen from the above description, the upper housing and the lower housing are made of metal.

Further, the device also comprises a permanent magnet 9, wherein the permanent magnet 9 is arranged on one side surface of the upper shell 7 close to the lower shell 8.

Further, the upper shell 7 and the lower shell 8 are welded.

Further, the integrated central conductor 2 is formed by die cutting.

Further, the PI film 3 is in die-cutting forming arrangement.

Referring to fig. 1 to 7, a first embodiment of the present invention is:

A patch type circulator is shown in figure 1 and comprises a ferrite 1 and an integrated central conductor 2, wherein the integrated central conductor 2 is arranged in a die-cutting forming mode. The integrated central conductor 2 comprises a main body part 21 and a branch 22, and the main body part 21 and the branch 22 enclose a containing cavity 23 matched with the ferrite 1. The number of branches 22 is three, and the three branches 22 are arranged at an angle of 120 ° to each other. Each branch 22 is provided with a PI film 3, the projection of the center of the PI film 3 in the vertical direction is overlapped with the projection of the center of the ferrite 1 in the vertical direction, and the PI film 3 is formed by die cutting.

The patch type circulator further comprises a metal injection molding component 4, a capacitor 5 and a resistor 6, wherein the metal injection molding component 4 is provided with a containing position 42 matched with the integrated central conductor 2. The capacitor 5 is respectively connected with the integrated central conductor 2 and the metal injection molding component 4 in a welding mode, and the resistor 6 is respectively connected with the integrated central conductor 2 and the metal injection molding component 4 in a welding mode.

The patch type circulator further comprises an upper shell 7, a lower shell 8 and a permanent magnet 9, wherein the metal injection molding component 4 is arranged between the upper shell 7 and the lower shell 8. The permanent magnet 9 is arranged on one side surface of the upper shell 7 close to the lower shell 8. In this embodiment, the upper casing 7 and the lower casing 8 are made of metal, and the upper casing 7 and the lower casing 8 are welded together.

The manufacturing method of the patch type circulator comprises the following steps:

1. And performing injection molding on the metal piece 41 for manufacturing the patch type circulator to obtain the metal injection molding assembly 4.

In this embodiment, a metal material strip needs to be blanked and formed to obtain the metal part 41, and the structure of the obtained metal part 41 is shown in fig. 2. Then, the metal piece 41 is subjected to injection molding through an injection mold to obtain the metal injection molding assembly 4, and a round hole is formed in a material belt for conveying the metal injection molding assembly 4 and is used for positioning in a subsequent assembly process.

2. And respectively attaching a capacitor 5 and a resistor 6 for manufacturing the patch type circulator to the metal injection molding component 4.

Firstly, coating solder paste on the metal part 41 of the metal injection molding assembly 4, and then respectively attaching the capacitor 5 and the resistor 6 to the metal part 41 by using a manipulator, so as to obtain the structure shown in fig. 3. Capacitor 5 and resistance 6 all adopt blue membrane packing, carry out visual positioning when conveniently pasting the dress, also be convenient for the manipulator clamp to get.

3. The PI film 3 is bonded to the branch 22 of the integrated center conductor 2 used for manufacturing the patch circulator.

In this embodiment, the PI film 3 and the integrated central conductor 2 are obtained by die cutting and molding, and before bonding, glue is coated on one side of the PI film 3. As shown in fig. 4, the integrated central conductor 2 includes three branches 22 at an angle of 120 ° with each other, and a PI film 3 is adhered to each of the branches 22. The PI film 3 and the integrated central conductor 2 are transported by adopting a material belt with the same positioning hole, so that the subsequent PI film 3 can be accurately adhered to the designated position of the integrated central conductor 2.

4. Bending the branch 22 of the integrated central conductor 2 bonded with the PI film 3 along the outer side wall of the ferrite 1 for manufacturing the patch type circulator, and overlapping the projection of the center of the PI film 3 in the vertical direction with the projection of the center of the ferrite 1 in the vertical direction to obtain the central conductor assembly 10.

As shown in fig. 5, the ferrite 1 is cylindrical, the PI film 3 is circular, and is bent to form a receiving cavity, the ferrite 1 is wrapped in the integrated central conductor 2, and each branch 22 is separated by the PI film 3.

5. And assembling the central conductor assembly 10 and the metal injection molding assembly 4, and then fixing the capacitor and the resistor with the integrated central conductor respectively to obtain a main body assembly.

Before assembly, respectively smearing solder paste on the capacitor, the resistor and the integrated central conductor; after assembly, the capacitor and the resistor are respectively welded and fixed with the integrated central conductor, and finally the structure shown in fig. 6 is obtained.

6. And assembling and fixing the lower shell 8, the upper shell 7 with the permanent magnet and the main body component to obtain the patch type circulator.

In this embodiment, the upper casing 7 and the lower casing 8 are made of metal, and the permanent magnet is attracted to the upper casing 7 through magnetic attraction. Firstly, the main body assembly is assembled between the upper shell 7 and the lower shell 8, and then the upper shell 7 and the lower shell 8 are welded and fixed, so as to obtain the patch type circulator shown in fig. 7.

And finally, sequentially inspecting, spraying codes and packaging the patch type circulator.

In summary, the chip-type circulator provided by the invention has a small overall volume, and is beneficial to the development of the circulator towards miniaturization.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.