CN216624521U

CN216624521U - Filter with novel tap structure

Info

Publication number: CN216624521U
Application number: CN202123053938.4U
Authority: CN
Inventors: 吕鹏飞; 刘明星
Original assignee: Wuhan Fingu Electronic Technology Co Ltd
Current assignee: Wuhan Fingu Electronic Technology Co Ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-05-27
Anticipated expiration: 2031-12-07

Abstract

The utility model provides a filter with a novel tap structure, which comprises a cavity, a connector and a resonator, wherein the bottom of the cavity is provided with a boss, the base material of the boss is made of an insulating material, the top surface of the boss is plated with a conductive layer, the conductive layer on the top surface of the boss forms the tap structure, and the tap structure is connected with the connector and the resonator. The utility model discloses cancel current tapped piece structure, through set up the boss bottom the cavity, plate the conducting layer at the boss top surface, the conducting layer through the boss top surface forms the function that the structure realized the tapped piece of taking a percentage, should take a percentage the structure for traditional tapped piece, do not need the tapped piece of independent production, and should take a percentage the structure can with wave filter cavity integrated into one piece, reduced the assembly step, and the precision is also higher, can promote the yield of product, time and cost have been practiced thrift greatly. And the tuning function can be realized by adjusting the height and the width of the boss, and a tuning structure is not required to be independently arranged, so that the cost is further reduced.

Description

Filter with novel tap structure

Technical Field

The utility model belongs to the technical field of communication equipment, and particularly relates to a filter with a novel tap structure.

Background

With the continuous development of communication technology and the continuous increase of market demand, the demand of communication products is continuously increased, the production cost requirement is lower and lower, and the production period requirement is shorter and shorter.

The cavity filter is a common communication product, a tap piece is generally required for connecting a connector and a resonator, certain cost is required for producing the tap piece, the assembly requirement of the tap piece is high, the consistency of the tap piece is poor due to poor assembly, the debugging qualification rate of the product is low, a large amount of time is required for debugging, and a large amount of time and cost are wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a filter with a novel tap structure, and aims to solve the problem that the production and manufacturing of the existing tap piece waste time and cost.

The utility model is realized in the following way:

the utility model provides a filter with a novel tap structure, which comprises a cavity, a connector and a resonator, wherein the bottom of the cavity is provided with a boss, the base material of the boss is made of an insulating material, the top surface of the boss is plated with a conductive layer, the conductive layer on the top surface of the boss forms the tap structure, and the tap structure is connected with the connector and the resonator.

Furthermore, the boss and the cavity are integrally formed by the same base material, the surface of the boss and the surface of the cavity are integrally plated with a conductive layer, the conductive layer is removed from the periphery of the top surface of the boss, and the residual conductive layer on the top surface of the boss forms the tapping structure.

Further, the side surfaces of the bosses also remove the conductive layer.

Furthermore, the resonator comprises a resonant cavity and a resonant rod extending into the resonant cavity, the resonant cavity is directly connected with the boss, the resonant cavity, the boss and the cavity are integrally formed, and the surface of the resonant cavity is integrally plated with a conductive layer.

Further, the boss is of a two-stage step structure, and the connector is connected with the top surface of the lower one-stage step structure of the boss.

Furthermore, the bottom of the connector is provided with a probe, and the probe is fixedly welded with the top surface of the boss.

Furthermore, the top surface of the boss is provided with a welding groove which is positioned under the probe, the inner wall of the welding groove is plated with a conducting layer, solder is preset in the welding groove, and the probe extends into the welding groove and is welded with the top surface of the boss through the solder.

Furthermore, the welding device also comprises a cover plate, wherein the cover plate is provided with a connector fixing hole coaxial with the welding groove.

Further, the connector is a low-pass connector and comprises a shell, and a connector and a low-pass which are connected and located in the shell.

Further, the connector is a filter input or output connector.

Compared with the prior art, the utility model has the following beneficial effects:

the filter with the novel tap structure provided by the utility model cancels the existing tap piece structure, the boss is arranged at the bottom of the cavity, the conductive layer is plated on the top surface of the boss, and the tap structure is formed by the conductive layer on the top surface of the boss to realize the function of the tap piece. And the tuning function can be realized by adjusting the height and the width of the boss, and a tuning structure is not required to be independently arranged, so that the cost is further reduced.

Drawings

Fig. 1 is a filter with a novel tap structure according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a filter having a novel tap structure according to an embodiment of the present invention;

fig. 3 is a schematic diagram of an internal structure of a filter having a novel tap structure according to an embodiment of the present invention.

Description of reference numerals: the device comprises a 1-cavity, a 2-resonator, a 21-resonant cavity, a 22-resonant rod, a 3-connector, a 31-shell, a 32-low pass, a 33-probe, a 34-connector, a 4-boss, a 41-tap structure, a 42-insulating part, a 43-welding groove, 44-welding materials, a 5-cover plate and a 51-connector fixing hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 3, an embodiment of the present invention provides a filter with a novel tap structure, including a cavity 1, a connector 3, and a resonator 2, where a boss 4 is disposed at the bottom of the cavity 1, a base material of the boss 4 is an insulating material, and a conductive layer is plated on a top surface of the base material, a tap structure 41 is formed by the conductive layer on the top surface of the boss 4, and the tap structure 41 is connected to the connector 3 and the resonator 2 to implement a tap piece function, so as to cancel a conventional tap piece structure, reduce production and assembly costs of the tap piece, and implement a tuning function by adjusting a height and a width of the boss 4, without separately providing a tuning structure, thereby further reducing costs.

In the preferred embodiment, the boss 4 and the cavity 1 are integrally formed by using the same insulating base material, and the surface is entirely plated with a conductive layer, and the conductive layer is removed around the top surface of the boss 4 to form an insulating portion 42, so that the remaining conductive layer on the top surface of the boss is separated from other conductive layers to form the tap structure 41. Preferably, the side surface of the boss 4 also removes the conductive layer, ensuring the insulating effect. The resonator 2 comprises a resonant cavity 21 and a resonant rod 22 extending into the resonant cavity 21, further preferably, the resonant cavity 21 is directly connected with the boss 4, the resonant cavity 21, the boss 4 and the cavity 1 are integrally formed, and a conductive layer is integrally plated on the surface of the resonant cavity 21, the tap structure 41 and the resonant cavity 21 are connected after plating, and a connection structure does not need to be separately arranged.

Preferably, the boss 4 is of a two-step structure, the connector 3 is connected with the top surface of the lower one-step structure of the boss 4, and the tuning function can be realized by adjusting the height and width of the higher one-step structure of the boss 4. The two-stage step structure can adapt to the depth of the socket connector 3 inserted into the cavity 1 and is convenient to tune.

In this embodiment, the connector 3 includes a housing 31, and a connector 34 and a low pass 32 connected to each other in the housing 31, and the bottom of the low pass 32 has a probe 33, and preferably, the probe 33 is welded to the top surface of the boss 4. In a preferred embodiment, the top surface of the boss 4 has a soldering groove 43 located directly below the probe 33, the inner wall of the soldering groove 43 is also plated with a conductive layer, solder 44 is preset in the soldering groove 43, and the probe 33 extends into the soldering groove 43 and is soldered to the top surface of the boss 4 by the solder 44, so as to electrically connect the connector 3 and the tap structure 41.

The filter further comprises a cover plate 5, and further preferably, a connector fixing hole 51 coaxial with the welding groove 43 is formed in the cover plate 5, and the positioning of the probe 33 and the welding groove 43 can be realized by inserting the connector 3 into the connector fixing hole 51 for fixing, so that the blind plugging function is realized, and the installation is convenient. After the blind insertion, the probe 33 and the tap structure 41 can be soldered and fixed by performing reflow soldering with the solder 44, which is very convenient for assembly.

In other embodiments, the connector 3 may also be a filter input or output connector, and the utility model is not limited thereto.

In summary, the filter with the novel tap structure provided by the embodiment of the utility model cancels the existing tap piece structure, the boss 4 is arranged at the bottom of the cavity 1, the conductive layer is plated on the top surface of the boss 4, and the tap structure 41 is formed by the conductive layer on the top surface of the boss 4 to realize the function of the tap piece, compared with the traditional tap piece, the tap structure 41 does not need to produce the tap piece independently, and the tap structure 41 can be integrally manufactured and molded with the filter cavity 1, so that the assembly steps are reduced, the precision is higher, the yield of products can be improved, and the time and the cost are greatly saved. And the tuning function can be realized by adjusting the height and the width of the boss 4, and a tuning structure is not required to be independently arranged, so that the cost is further reduced.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a filter with novel structure of taking a percentage, includes cavity, connector and syntonizer, its characterized in that: the bottom of cavity is provided with the boss, the substrate of boss is insulating material and the conducting layer has been plated on the top surface, takes a percentage the structure through the conducting layer formation of boss top surface, take a percentage the structure connection the connector and the syntonizer.

2. The filter having a novel tap structure as claimed in claim 1, wherein: the lug boss and the cavity are integrally formed by adopting the same base material, the surface of the lug boss is integrally plated with a conductive layer, the conductive layer is removed from the periphery of the top surface of the lug boss, and the residual conductive layer on the top surface of the lug boss forms the tapping structure.

3. The filter having a novel tap structure as claimed in claim 2, wherein: the side of the boss also removes the conductive layer.

4. The filter having a novel tap structure as claimed in claim 2, wherein: the resonator comprises a resonant cavity and a resonant rod extending into the resonant cavity, the resonant cavity is directly connected with the boss, the resonant cavity, the boss and the cavity are integrally formed, and the surface of the resonant cavity is integrally plated with a conductive layer.

5. The filter having a novel tap structure as claimed in claim 1, wherein: the boss is of a two-stage step structure, and the connector is connected with the top surface of the lower one-stage step structure of the boss.

6. The filter having a novel tap structure as claimed in claim 1, wherein: the bottom of the connector is provided with a probe, and the probe is fixedly welded with the top surface of the boss.

7. The filter having a novel tap structure as claimed in claim 6, wherein: the top surface of the boss is provided with a welding groove which is positioned under the probe, the inner wall of the welding groove is plated with a conducting layer, solder is preset in the welding groove, and the probe extends into the welding groove and is welded with the top surface of the boss through the solder.

8. The filter having a novel tap structure as claimed in claim 7, wherein: the connector fixing structure further comprises a cover plate, and connector fixing holes coaxial with the welding grooves are formed in the cover plate.

9. The filter having a novel tap structure as claimed in claim 1, wherein: the connector assembly includes a housing and a low pass and connector connected within the housing.

10. The filter having a novel tap structure as claimed in claim 1, wherein: the connector is a filter input or output connector.