WO2020048111A1

WO2020048111A1 - Subminiature network circulator

Info

Publication number: WO2020048111A1
Application number: PCT/CN2019/078416
Authority: WO
Inventors: 熊飞; 张伟
Original assignee: 深圳市华扬通信技术有限公司
Priority date: 2018-09-03
Filing date: 2019-03-18
Publication date: 2020-03-12
Also published as: CN208522068U

Abstract

Disclosed is a subminiature network circulator. The subminiature network circulator comprises a stackable assembly, a cover plate, and a housing having a hollow structure provided with an opening at a top portion thereof. Three port slots are disposed on a peripheral wall of the housing. The cover plate is located above the stackable assembly and abuts the stackable assembly. The housing comprises a fixing portion and a bent portion connected to each other. A circular punching slot is disposed on an inner peripheral wall of the housing. The stamping slot is located between the fixing portion and the bent portion. The stackable assembly is disposed in the fixing portion and located below the punching slot. An outer peripheral wall of the cover plate is provided to form a curved surface, and an inner wall surface of the bent portion abuts the curved surface. The bent portion bends towards the hollow structure, and is is formed by means of punching. The outer wall of the cover plate is provided to form a curved surface, and the bent portion presses the cover plate inside the housing, so as to form a stable structure. The structure has a simple manufacturing process and can improve productivity. The punching slot facilitates deformation of the bent portion during punching, such that the bent portion is pressed closely against the cover plate.

Description

Ultra-small network circulator

Technical field

The invention relates to a microwave ferrite device, in particular to an ultra-small network circulator.

Background technique

The existing circulator includes a cover plate, a stacking component, and a shell with a hollow structure at the top. The stacking component and the cover plate are respectively disposed in the hollow structure. The opening, the cover plate is threadedly connected to the casing, and the stacking component is clamped between the cover plate and the bottom plate of the casing.

However, processing the threads on the peripheral wall of the cover plate is very troublesome, and the process of installing the cover plate on the housing by the staff is time-consuming. Therefore, the existing ultra-small network circulator has the problem of inconvenient production.

technical problem

The technical problem to be solved by the present invention is to provide an ultra-small network circulator which is convenient to produce.

Technical solutions

In order to solve the above technical problems, the technical solution adopted by the present invention is: an ultra-small network circulator, which includes a stacking component, a cover plate, and a shell with a hollow structure at the top, and the peripheral wall of the shell has three ports. The cover is located above the stacking assembly and resists the stacking assembly, the casing includes a fixed portion and a bent portion connected to each other, and an annular punching groove is provided on the inner peripheral wall of the casing, The stamping groove is located between the fixing portion and the bending portion, and the stacking component is disposed in the fixing portion and below the stamping groove; an outer peripheral wall of the cover plate is provided in an arc surface, so The inner wall surface of the bent portion abuts the arc surface; the bent portion is bent toward the hollow structure, and the bent portion is formed by pressing.

Further, the stacking assembly includes a first permanent magnet, a first iron sheet, a first ferrite, a center conductor, a second ferrite, a second iron sheet, a second permanent magnet, a first An iron-nickel alloy sheet and a second iron-nickel alloy sheet, and the cover plate abuts against the second iron-nickel alloy sheet.

Further, a dielectric ring is respectively sleeved on the outside of the first ferrite and the outside of the second ferrite.

Further, the material of the dielectric ring is ceramic.

Further, it further comprises a pin needle assembly, which is installed at the bottom of the port slot and is electrically connected to the center conductor.

Further, the pin needle assembly includes a pin needle and a dielectric sleeve sleeved on the outside of the pin needle, and a surface of the pin needle is plated with gold. Further, the material of the dielectric sleeve is PTFE, and the surface of the dielectric sleeve is gold-plated.

Further, the inner wall surface of the bent portion has a plurality of protrusions provided around the central axis of the casing.

Further, the protrusion is in a strip shape, and the protrusion is disposed along an axial direction of the casing.

Further, a guide bent portion is provided at one end of the protrusion near the central axis of the casing.

Beneficial effect

The beneficial effect of the invention is that the outer wall of the cover plate of the ultra-small network circulator is arranged in an arc surface, and the bent portion presses the cover plate into the casing to form a stable structure. This structure has simple processing steps and can improve production efficiency; stamping The arrangement of the grooves facilitates the deformation of the bent portion during press forming, so that the bent portion can tightly press the cover plate.

BRIEF DESCRIPTION OF THE DRAWINGS

1 is an exploded view of an ultra-small network circulator according to the first embodiment of the present invention;

2 is a schematic structural diagram of a housing of an ultra-small network circulator according to the first embodiment of the present invention;

3 is a front view of the housing of the ultra-small network circulator according to the first embodiment of the present invention (before bending);

4 is a front view of the housing of the ultra-small network circulator according to the first embodiment of the present invention (after bending);

5 is a plan view of a housing of another ultra-small network circulator according to the first embodiment of the present invention;

FIG. 6 is an enlarged schematic view of detail A in FIG. 5.

Label description:

1. Cover plate;

Shell

21. Fixed part;

22. Bending section;

23. Stamping groove;

3. Port slot;

4. The first permanent magnet;

5. The first iron piece;

6. The first ferrite;

7, center conductor;

8. The second ferrite;

9. The second iron piece;

10. The second permanent magnet;

11. The first iron-nickel alloy sheet;

12. The second iron-nickel alloy sheet;

13, pin needle assembly;

14, raised;

141. The bent portion.

Embodiments of the invention

In order to explain the technical content, achieved objectives, and effects of the present invention in detail, the following describes in combination with embodiments and accompanying drawings.

The most key idea of the present invention lies in that the bent portion bends and presses the cover plate inwardly to form a stable structure; a stamping groove is provided on the inner peripheral wall of the casing to facilitate the stamping forming of the bent portion.

Please refer to FIG. 1 to FIG. 6, an ultra-small network circulator includes a stacking assembly, a cover plate 1, and a housing 2 with a hollow structure at the top. The peripheral wall of the housing 2 has three port slots 3. The cover plate 1 is located above the stacking assembly and abuts against the stacking assembly. The casing 2 includes a fixed portion 21 and a bent portion 22 connected to each other. The inner peripheral wall of the casing 2 is provided with a ring shape. A punching slot 23, which is located between the fixing portion 21 and the bending portion 22, the stacking component is disposed in the fixing portion 21 and is located below the punching slot 23; the cover The outer peripheral wall of the plate 1 is provided with an arc surface, and the inner wall surface of the bent portion 22 abuts against the arc surface; the bent portion 22 is bent toward the hollow structure, and the bent portion 22 is stamped and formed.

The structural principle of the present invention is briefly described as follows: a stamping groove is provided at the joint between the fixed part and the bending part of the casing, and the bending part can be bent inwardly along the stamping groove toward the casing axially. The curved surface matching the outer wall of the cover plate, the bent portion presses the cover plate and the stacked components under the cover plate.

As can be seen from the above description, the beneficial effect of the present invention is that the outer wall of the cover plate of the ultra-small network circulator is provided with an arc surface, and the bent portion presses the cover plate into the casing to form a stable structure. The production efficiency is improved; the setting of the stamping groove facilitates the deformation of the bending portion during the stamping and forming, so that the bending portion can tightly press the cover plate.

Further, the stacking assembly includes a first permanent magnet 4, a first iron sheet 5, a first ferrite 6, a center conductor 7, a second ferrite 8, a second iron sheet 9, which are sequentially stacked from bottom to top. The second permanent magnet 10, the first iron-nickel alloy sheet 11 and the second iron-nickel alloy sheet 12, the cover plate 1 abuts against the second iron-nickel alloy sheet 12.

Further, a dielectric ring is respectively sleeved on the outside of the first ferrite 6 and the outside of the second ferrite 8.

Further, the material of the dielectric ring is ceramic.

It can be known from the above description that the dielectric ring made of ceramic has a higher dielectric constant, which can improve the electrical characteristics of the product.

Further, it further comprises a pin needle assembly 13 which is installed at the bottom of the port slot 3 and is electrically connected to the center conductor 7.

Further, the pin needle assembly 13 includes a pin needle and a dielectric sleeve sleeved on the outside of the pin needle, and the surface of the pin needle is gold-plated.

Further, the material of the dielectric sleeve is PTFE, and the surface of the dielectric sleeve is gold-plated.

It can be known from the above description that a pin needle with a dielectric sleeve on the outside has better conductivity and less loss.

Further, the inner wall surface of the bent portion 22 has a plurality of protrusions 14 provided around the central axis of the casing 2.

Further, the protrusions 14 are strip-shaped, and the protrusions 14 are disposed along the axial direction of the casing 2.

It can be known from the above description that a plurality of protrusions contact the cover plate, which increases the pressure exerted by the bent portion on the cover plate, and prevents the cover plate from being warped, so that the cover plate can evenly exert force on the stacked components, which is beneficial to improving the structure of the circulator. The stability.

Further, one end of the protrusion 14 near the central axis of the casing 2 is provided with a guide bending portion 141.

From the above description, it can be known that the good guiding effect of the guide bending portion facilitates the protrusion to bend toward the inner wall of the housing of the bending portion when the protrusion is stressed.

Example one

Please refer to FIG. 1 to FIG. 6, a first embodiment of the present invention is: an ultra-small network circulator, which includes a stacking component, a cover plate 1, and a casing 2 with a hollow structure at the top, and a peripheral wall of the casing 2 There are three port grooves 3 arranged on the peripheral wall of the housing 2 at an equidistant interval. The cover plate 1 is located above the stacking component and resists the stacking component. The housing 2 includes The fixed portion 21 and the bent portion 22 are connected. The inner peripheral wall of the casing 2 is provided with an annular punching groove 23, and the punching groove 23 is located between the fixed portion 21 and the bent portion 22. The stacking component is disposed in the fixing portion 21 and is located below the punching groove 23; an outer peripheral wall of the cover plate 1 is provided with an arc surface, and an inner wall surface of the bending portion 22 abuts against the arc surface The bending portion 22 is bent toward the hollow structure, and the bending portion 22 is press-molded, that is, the bottom end of the bending portion 22 is axially bent along the stamping groove 23 toward the housing 2 and after bending The curved surface of the inner wall of the bent portion 22 is adapted to the curved surface of the outer peripheral wall of the cover plate 1.

In detail, the stacked assembly includes a first permanent magnet 4, a first iron sheet 5, a first ferrite 6, a center conductor 7, a second ferrite 8, a second iron sheet 9, The second permanent magnet 10, the first iron-nickel alloy sheet 11 and the second iron-nickel alloy sheet 12, the cover plate 1 abuts against the second iron-nickel alloy sheet 12. Specifically, a dielectric ring made of ceramic is respectively sleeved on the outside of the first ferrite 6 and the outside of the second ferrite 8.

In detail, it further includes a pin needle assembly 13 which is installed at the bottom of the port slot 3 and is electrically connected to the center conductor 7. In this embodiment, the pin needle assembly 13 includes a pin needle and a dielectric sleeve sleeved on the outside of the pin needle, and the surface of the pin needle is gold-plated. Further, the material of the dielectric sleeve is PTFE, and the surface of the dielectric sleeve is gold-plated. The pin needle assembly 13 has better conductivity and less loss.

Optionally, the inner wall surface of the bent portion 22 further has a plurality of protrusions 14 provided around the central axis of the casing 2. In detail, the protrusions 14 are strip-shaped, and the protrusions 14 are disposed along the axial direction of the casing 2. Preferably, nine of the protrusions 14 are provided on the inner wall of the bent portion 22 at an equal interval, and one end of the protrusion 14 near the central axis of the housing 2 is further provided with a guide bent portion 141.

In summary, the ultra-small network circulator provided by the present invention is provided with an outer surface of a cover plate with an arc surface, and the bent portion presses the cover plate into the housing to form a stable structure. This structure has simple processing steps and can improve Production efficiency; the setting of the stamping groove is beneficial to the deformation of the bent portion during the stamping, so that the bent portion can press the cover plate tightly; the dielectric ring made of ceramic has a higher dielectric constant, which can improve the electrical characteristics of the product; The external pin with a dielectric sleeve has better conductivity and less loss; multiple protrusions contact the cover plate, which increases the pressure exerted by the bent portion on the cover plate; the good guiding effect of the guide bent portion is convenient for the protrusion to receive. Bend in the direction of the inner wall of the bend when the force is applied.

The above description is only an embodiment of the present invention, and thus does not limit the patent scope of the present invention. Any equivalent transformations made using the description and drawings of the present invention, or directly or indirectly used in related technical fields, are similarly included in the same. Within the scope of patent protection of the present invention.

Claims

An ultra-small network circulator includes a stacking component, a cover plate, and a housing with a hollow structure at the top. The peripheral wall of the housing has three port slots. The cover plate is located above the stacking component and abuts against the stacking component. The stacking assembly is characterized in that the casing includes a fixed portion and a bent portion connected to each other, and an inner circumferential wall of the casing is provided with an annular stamping groove, and the stamping groove is located on the fixed portion and Between the bending portions, the stacking component is disposed in the fixing portion and is located below the punching groove; an outer peripheral wall of the cover plate is provided in an arc surface, and an inner wall surface of the bending portion abuts against The curved surface; the bent portion is bent toward the hollow structure, and the bent portion is formed by pressing.
The ultra-small network circulator according to claim 1, wherein the stacking component comprises a first permanent magnet, a first iron piece, a first ferrite, a center conductor, and a second iron which are sequentially stacked from bottom to top. The ferrite, the second iron sheet, the second permanent magnet, the first iron-nickel alloy sheet, and the second iron-nickel alloy sheet, and the cover plate abuts against the second iron-nickel alloy sheet.
The ultra-small network circulator according to claim 2, wherein a dielectric ring is respectively sleeved on the outside of the first ferrite and the outside of the second ferrite.
The ultra-small network circulator according to claim 3, wherein the material of the dielectric ring is ceramic.
The ultra-small network circulator according to claim 2, further comprising a pin needle assembly installed at the bottom of the port slot and electrically connected to the center conductor.
The ultra-small network circulator according to claim 5, wherein the pin needle assembly comprises a pin needle and a dielectric sleeve sleeved on the outside of the pin needle, and a surface of the pin needle is plated with gold.
The ultra-small network circulator according to claim 6, wherein the material of the dielectric sleeve is PTFE, and the surface of the dielectric sleeve is gold-plated.
The ultra-small network circulator according to claim 1, wherein an inner wall surface of the bent portion has a plurality of protrusions provided around a central axis of the casing.
The ultra-small network circulator according to claim 8, wherein the protrusions are strip-shaped, and the protrusions are arranged along the axial direction of the casing.
The ultra-small network circulator according to claim 9, characterized in that: one end of the protrusion near the central axis of the casing is provided with a guide bending portion.