CN216214007U

CN216214007U - Circulator with PCB

Info

Publication number: CN216214007U
Application number: CN202122694810.XU
Authority: CN
Inventors: 孙泽华; 刘萍; 张典鹏; 王春明; 邱文才
Original assignee: Guangdong Daguangxin Technology Co ltd
Current assignee: Guangdong Daguangxin Technology Co ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-04-05
Anticipated expiration: 2031-11-05

Abstract

The utility model relates to the technical field of electronic components and discloses a circulator with a PCB (printed circuit board), which comprises a shell and a magnetic assembly, wherein a cavity is arranged in the shell, the magnetic assembly is arranged in the cavity, and the magnetic assembly comprises: the PCB comprises a PCB substrate, wherein the upper surface of the PCB substrate is provided with a central welding area, copper foil covers the central welding area, a tin containing groove is formed in the central welding area, and the tin containing groove can contain molten tin; and the conductor module comprises a central conductor, the central conductor comprises a central chassis part and an edge connecting part, the central chassis part is welded with the copper foil in the central welding area through soldering tin, the tin containing groove can contain the soldering tin overflowing during welding, one end of the edge connecting part is connected with the central chassis part, and the other end of the edge connecting part is welded with the PCB substrate. The circulator with the PCB can improve the stability of products, improve the yield and reduce the working hours brought by checking and cleaning abnormal soldering tin.

Description

Circulator with PCB

Technical Field

The utility model relates to the technical field of electronic components, in particular to a circulator with a PCB.

Background

The circulator is a multi-port device which transmits incident waves entering any port of the circulator into the next port according to the direction sequence determined by the static bias magnetic field.

With the advent of the 5G era, the requirement for low insertion loss characteristics of circulators has become higher, and in the conventional circulator constructed by using a PCB, solder is generally printed on the top surface of the PCB in order to solder the bottom surface of the conductor of the circulator to the top surface of the PCB, and then the conductor is mounted on the PCB, and the solder is melted by heating at a high temperature and then cooled and solidified to solder the conductor and the PCB together. The surface of the traditional PCB and the bottom surface of the conductor are complete planes, and the solder clamped between the PCB and the conductor can generate two undesirable phenomena when being melted: one is the problem that the welded conductor floats due to uneven melting of soldering tin, so that the product has poor characteristics; and secondly, the soldering tin easily overflows between the two planes to form a soldering tin ball, so that the hidden danger of short circuit of a product is increased, and the cleaning difficulty and the inspection time of subsequent inspection engineering are increased.

Therefore, a need exists for a circulator having a PCB to overcome the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

Based on the above, the present invention is directed to provide a circulator with a PCB, which can improve the stability of products, improve the yield, and reduce the man-hour for inspecting and cleaning abnormal solder.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a circulator with PCB, includes shell and magnetic component, be equipped with the cavity in the shell, magnetic component locates in the cavity, magnetic component includes:

the PCB comprises a PCB substrate, wherein a central welding area is arranged on the upper surface of the PCB substrate, copper foil covers the central welding area, a tin containing groove is formed in the central welding area, and the tin containing groove can contain melted soldering tin; and

the conductor module comprises a central conductor, the central conductor comprises a central chassis part and an edge connecting part, the central chassis part is welded with the copper foil in the central welding area through soldering tin, the tin containing groove can contain the soldering tin overflowing during welding, one end of the edge connecting part is connected with the central chassis part, and the other end of the edge connecting part is welded with the PCB substrate.

Specifically, circulator with PCB includes the shell and locates the magnetic component in the cavity of shell, and magnetic component includes PCB base plate and conductor module, and the conductor module includes central conductor. On one hand, the insertion loss of the circulator is reduced because the central conductor is directly connected with the PCB substrate; on the other hand, because the central welding area welded with the central chassis part on the PCB substrate is provided with the tin containing groove, the soldering tin in the welding process of the central conductor and the PCB substrate can flow into the tin containing groove when being melted, so that the soldering tin has better fluidity, the phenomena of uneven melting, balling and the like of the soldering tin are avoided, the conductor tilting after welding is further avoided, the risk that the soldering tin overflows from the central welding area is reduced, the stability of a product is improved, the yield is improved, and the working hours brought by checking and cleaning abnormal soldering tin are reduced.

As an alternative solution to the circulator with the PCB, the tin-containing groove is provided in a cross structure, and the tin-containing groove is close to the edge of the central soldering area along the longitudinal direction and the transverse direction of the horizontal plane, respectively.

As an optional technical scheme of the circulator with the PCB, the central welding area except the tin containing groove is covered with copper foil.

As an optional technical solution of the circulator with the PCB, the upper surface of the PCB substrate is further provided with an edge welding area, the edge welding area is arranged around the periphery of the central welding area, the edge welding area is covered with a copper foil, and the other end of the edge connecting part is welded with the copper foil in the edge welding area through soldering tin.

As an optional technical solution of the circulator with the PCB, a plurality of capacitors and resistors are further disposed in the cavity, and the capacitors and the resistors are both welded to the copper foil on the edge welding area.

As an optional technical scheme of the circulator with the PCB, the edge connecting portion is provided with three and follows the circumferential distribution of the central chassis portion, the edge connecting portion includes a supporting section, an extending section and a connecting section that are connected in sequence, the supporting section is arranged along the vertical direction, the bottom end of the supporting section is connected with the edge of the central chassis portion, one end of the extending section is connected with the top end of the supporting section, the extending section passes through the central axis of the central chassis portion along the horizontal direction and then extends out of the central chassis portion, the connecting section is connected with the other end of the extending section, and the connecting section is connected with the PCB substrate.

As an optional technical solution of the circulator with the PCB, the three extending sections have different heights, and gaps are provided between the three extending sections and between the extending section with the lowest height and the central chassis portion, and the conductor module further includes:

a first ferrite disposed in a gap between the central chassis portion and the lowest height of the extension; and

a second ferrite disposed over the center conductor in a stack.

As an optional technical solution of the circulator with the PCB, the conductor module further includes:

the insulating piece, all be equipped with in the clearance between the extension the insulating piece, highly the highest the top of extension also is equipped with the insulating piece.

As an optional technical solution of the circulator with the PCB, the magnetic assembly further includes:

a magnet disposed above the second ferrite in a stacked manner.

As an optional technical solution of the circulator with the PCB, the housing includes a cover and a box, the PCB substrate is connected to the box, and the cover is welded to the box.

The utility model has the beneficial effects that:

the circulator with the PCB comprises a shell and a magnetic assembly arranged in a cavity of the shell, wherein the magnetic assembly comprises a PCB substrate and a conductor module, and the conductor module comprises a central conductor. On one hand, the insertion loss of the circulator is reduced because the central conductor is directly connected with the PCB substrate; on the other hand, because the central welding area welded with the central chassis part on the PCB substrate is provided with the tin containing groove, the soldering tin in the welding process of the central conductor and the PCB substrate can flow into the tin containing groove when being melted, so that the soldering tin has better fluidity, the phenomena of uneven melting, balling and the like of the soldering tin are avoided, the conductor tilting after welding is further avoided, the risk that the soldering tin overflows from the central welding area is reduced, the stability of a product is improved, the yield is improved, and the working hours brought by checking and cleaning abnormal soldering tin are reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

FIG. 1 is a schematic structural view of a circulator with a PCB provided by the utility model;

FIG. 2 is an exploded schematic view of a circulator with a PCB provided by the present invention;

FIG. 3 is a schematic structural diagram of a PCB substrate provided by the present invention;

fig. 4 is a front view of a PCB substrate provided by the present invention.

In the figure:

1. a PCB substrate; 11. a central weld area; 12. a tin containing groove; 13. an edge weld area; 2. a center conductor; 21. a central chassis section; 22. an edge connecting part; 3. a first ferrite; 4. a second ferrite; 5. an insulating sheet; 6. a magnet; 7. a capacitor; 8. a resistance; 9. a cover body; 10. and (5) a box body.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 4, the present embodiment provides a circulator with a PCB, the circulator includes a housing and a magnetic assembly, a cavity is disposed in the housing, the magnetic assembly is disposed in the cavity, and the magnetic assembly includes a PCB substrate 1 and a conductor module. The upper surface of the PCB substrate 1 is provided with a central welding area 11, copper foil covers the central welding area 11, a tin containing groove 12 is arranged in the central welding area 11, and the tin containing groove 12 can contain melted soldering tin; the conductor module comprises a central conductor 2, the central conductor 2 comprises a central chassis part 21 and an edge connecting part 22, the central chassis part 21 is welded with copper foil in a central welding area 11 through soldering tin, the tin containing groove 12 can contain the soldering tin overflowing during welding, one end of the edge connecting part 22 is connected with the central chassis part 21, and the other end of the edge connecting part 22 is welded with the PCB substrate 1.

Specifically, the circulator with the PCB provided in this embodiment includes a housing and a magnetic assembly disposed in a cavity of the housing, where the magnetic assembly includes a PCB substrate 1 and a conductor module, and the conductor module includes a central conductor 2. On one hand, since the center conductor 2 is directly connected to the PCB substrate 1, the insertion loss of the circulator is reduced; on the other hand, because the central welding area 11 welded with the central chassis part 21 on the PCB substrate 1 is provided with the tin containing groove 12, the soldering tin in the welding process of the central conductor 2 and the PCB substrate 1 can flow into the tin containing groove 12 when being melted, so that the soldering tin has better fluidity, the phenomena of uneven melting, ball formation and the like of the soldering tin are avoided, the conductor tilting after welding is further avoided, the risk of overflowing of the soldering tin from the central welding area 11 is reduced, the stability of products is improved, the yield is improved, and the working hours caused by checking and cleaning abnormal soldering tin are reduced.

Optionally, the tin containing groove 12 is configured as a cross structure, and the tin containing groove 12 is close to the edge of the central soldering area 11 along the longitudinal direction and the transverse direction of the horizontal plane, respectively, so as to greatly accommodate the solder that may overflow.

Optionally, the central soldering region 11 is covered with copper foil except for the tin-containing groove 12.

Optionally, the upper surface of the PCB substrate 1 is further provided with an edge welding area 13, the edge welding area 13 is disposed around the periphery of the central welding area 11, the edge welding area 13 is covered with a copper foil, and the other end of the edge connecting portion 22 is welded to the copper foil in the edge welding area 13 by soldering tin.

Further, the copper foil on the edge bonding area 13 is spaced apart from the copper foil on the center bonding area 11.

Optionally, the cavity is further provided with a plurality of capacitors 7 and resistors 8, and the capacitors 7 and the resistors 8 are welded to the copper foil on the edge welding area 13.

Optionally, the edge connecting portion 22 is provided with three and distributes along the circumference of center chassis portion 21, the edge connecting portion 22 includes the support section that connects gradually, extension section and linkage segment, the support section sets up along vertical direction, the bottom of support section and the edge connection of center chassis portion 21, the one end of extension section is connected with the top of support section, the extension section stretches out center chassis portion 21 after passing the central axis of center chassis portion 21 along the horizontal direction, the linkage segment is connected in the other end of extension section, the copper foil welded connection on linkage segment and PCB base plate 1 upper edge welding region 13.

Optionally, the three extension sections have different heights, gaps are formed between the three extension sections and between the extension section with the lowest height and the central chassis portion 21, the conductor module further includes a first ferrite 3 and a second ferrite 4, the first ferrite 3 is arranged in the gap between the central chassis portion 21 and the extension section with the lowest height, and the second ferrite 4 is stacked above the central conductor 2.

Optionally, the conductor module further includes an insulating sheet 5, the insulating sheets 5 are disposed in gaps between the extending sections, and the insulating sheet 5 is disposed above the extending section with the highest height.

Optionally, the magnetic assembly further comprises a magnet 6, and the magnet 6 is stacked above the second ferrite 4.

Optionally, the housing includes a cover 9 and a box 10, the PCB substrate 1 is connected to the box 10, and the cover 9 is welded to the box 10.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. The utility model provides a circulator with PCB, includes shell and magnetic component, be equipped with the cavity in the shell, magnetic component locates in the cavity, its characterized in that, magnetic component includes:

the soldering tin-containing PCB comprises a PCB substrate (1), wherein a central welding area (11) is arranged on the upper surface of the PCB substrate (1), copper foil covers the central welding area (11), a tin-containing groove (12) is arranged in the central welding area (11), and the tin-containing groove (12) can contain melted soldering tin; and

the conductor module, the conductor module includes central conductor (2), central conductor (2) are including center chassis portion (21) and marginal connecting portion (22), center chassis portion (21) with copper foil in central welding region (11) passes through the soldering tin welding, hold tin recess (12) and can hold the welding overflow the soldering tin, the one end of marginal connecting portion (22) with center chassis portion (21) are connected, the other end of marginal connecting portion (22) with PCB base plate (1) welding.

2. Circulator with PCB according to claim 1 characterized in that the tin containing recess (12) is arranged as a cross structure, the tin containing recess (12) being close to the edge of the central soldering area (11) in longitudinal and transversal direction of the horizontal plane, respectively.

3. Circulator with PCB according to claim 2 characterized in that the central soldering area (11) is covered with copper foil except the tin containing groove (12).

4. The circulator of claim 1 wherein the upper surface of the PCB substrate (1) is further provided with an edge welding area (13), the edge welding area (13) is arranged around the periphery of the central welding area (11), the edge welding area (13) is covered with copper foil, and the other end of the edge connecting part (22) is welded with the copper foil in the edge welding area (13) through soldering tin.

5. Circulator with PCB according to claim 4 characterized in that several capacitors (7) and resistors (8) are arranged in the cavity, and both capacitors (7) and resistors (8) are welded with copper foil on the edge welding area (13).

6. The circulator with the PCB as claimed in claim 1, wherein the edge connecting portion (22) is provided with three and distributed along a circumferential direction of the central chassis portion (21), the edge connecting portion (22) comprises a supporting section, an extending section and a connecting section which are connected in sequence, the supporting section is arranged along a vertical direction, a bottom end of the supporting section is connected with the edge of the central chassis portion (21), one end of the extending section is connected with a top end of the supporting section, the extending section passes through a central axis of the central chassis portion (21) along a horizontal direction and then extends out of the central chassis portion (21), the connecting section is connected to the other end of the extending section, and the connecting section is connected with the PCB base plate (1).

7. The circulator of claim 6 wherein the three extensions have different heights and gaps are provided between the three extensions and between the lowest extension and the central chassis portion (21), the conductor module further comprising:

a first ferrite (3), said first ferrite (3) being provided in a gap between said central chassis portion (21) and said extension section having the lowest height; and

a second ferrite (4), the second ferrite (4) being stacked above the central conductor (2).

8. The circulator of claim 7 wherein the conductor module further comprises:

insulating piece (5), all be equipped with in the clearance between the extension insulating piece (5), highly the highest the top of extension also is equipped with insulating piece (5).

9. The circulator of claim 7 wherein the magnetic assembly further comprises:

a magnet (6), the magnet (6) being arranged above the second ferrite (4) in a stacked manner.

10. Circulator with PCB according to claim 1 characterized in that the housing comprises a cover (9) and a box (10), the PCB substrate (1) is connected with the box (10), the cover (9) is welded with the box (10).