CN-116315541-B - Filter and communication device

Abstract

The application relates to the technical field of communication, and provides a filter and communication equipment, wherein the filter comprises a shell structure, a filter body and a filter body, wherein a resonant cavity is formed in the shell structure, and the shell structure comprises a connecting part and a deformation part which are oppositely arranged; the device comprises a resonant cavity, a resonator and an adjusting piece, wherein the resonant cavity is arranged in the resonant cavity and is connected with a connecting part or a deforming part, the adjusting piece is arranged in the resonant cavity and is connected with the connecting part and the deforming part, a through hole is formed in the connecting part or the deforming part, the adjusting piece is arranged at the through hole, and the adjusting piece can bear force to move relative to the connecting part and/or the deforming part so as to drive the deforming part to deform. The filter provided by the application can provide a new tuning mode without adopting a scheme of threaded connection of the tuning screw and the cover plate, thereby providing more possibility for improving the problem that the threaded connection of the tuning screw and the cover plate is easy to influence the performance of the filter and realizing the improvement of the performance index of the filter under the condition of being beneficial to tuning.

Inventors

• XIE XINCHENG
• TONG MIN
• YANG HEGONG

Assignees

• 大富科技(安徽)股份有限公司

Dates

Publication Date

20260512

Application Date

20230228

Claims (11)

1. 1. A kind of filter, which is used to make the filter, characterized by comprising the following steps: The shell structure is internally provided with a resonant cavity and comprises a connecting part and a deformation part which are oppositely arranged, and the deformation part is provided with a through hole; A resonator positioned in the resonant cavity and connected to the connecting part, and The adjusting piece is positioned in the resonant cavity, one end of the adjusting piece is connected to the deformation part and positioned at the through hole, and the other end of the adjusting piece is connected to the resonator; The adjusting piece can rotate under force to move relative to the resonator, so that the depth of the adjusting piece in the resonant cavity extending into the resonator is changed, and the deformation part is driven to deform at the same time; the filter adjusts the resonant frequency by rotating the adjusting piece and simultaneously changing the depth of the part of the adjusting piece in the resonant cavity extending into the resonator and the relative position between the deforming part and the resonator; The resonator includes: a resonance tube connected to the connection part, the resonance tube having an opening hole, and The fixing piece is positioned in the opening hole and is fixed on the resonance tube; wherein the adjusting piece is connected to the fixing piece; The adjusting piece is made of a metal material, and the fixing piece is made of an insulating material.
2. 2. The filter of claim 1, wherein the resonator is provided with a threaded hole, and the adjusting member is in threaded connection with the threaded hole.
3. 3. The filter of claim 1, wherein the tuning element comprises a first portion and a second portion connected, the first portion being connected to the deformation and the second portion being connected to the resonator; The material of the first part comprises a metal material for electromagnetically closing the through hole, and the material of the second part comprises plastic, or The material of the first portion and the material of the second portion each comprise plastic.
4. 4. A filter according to any one of claims 1 to 3, wherein the adjustment member comprises: A first abutting part, which is positioned outside the resonant cavity and is used for abutting against one side of the deformation part away from the connecting part, and The connecting rod is positioned in the resonant cavity, one end of the connecting rod penetrates through the through hole and is connected to the first abutting part, and the other end of the connecting rod is connected to the resonator.
5. 5. The filter according to claim 4, wherein the first abutting portion is fixedly connected with the connecting rod, and a force application structure is provided at an end of the connecting rod away from the connecting portion.
6. 6. The filter according to claim 4, wherein the adjusting member further includes a second abutting portion located in the resonant cavity and connected to the connecting rod for abutting with a side of the deformed portion toward the connecting portion.
7. 7. The filter according to claim 6, wherein the connecting rod is in clearance fit with the through hole, and/or The first abutting part abuts against the deformation part, the second abutting part is in clearance fit with the deformation part, or the second abutting part abuts against the deformation part, and the first abutting part is in clearance fit with the deformation part.
8. 8. The filter according to claim 6, wherein a first threaded through hole is formed in the first abutting portion, and one end of the connecting rod, which is far away from the connecting portion, is arranged through the through hole and is in threaded connection with the first threaded through hole; And one end of the connecting rod, which is far away from the connecting part, is provided with a force application structure.
9. 9. A filter according to any one of claims 1 to 3, wherein an end of the adjustment member remote from the connecting portion is adapted to abut against a side of the deformation portion facing the connecting portion.
10. 10. The filter according to claim 9, wherein an end of the adjusting member remote from the connecting portion is provided with a biasing structure; the end face of one end of the adjusting piece, which is far away from the connecting part, is positioned in the resonant cavity and is used for abutting against one side, facing the connecting part, of the deformation part.
11. 11. A communication device, characterized in that the communication device comprises a filter according to any of claims 1 to 10.

Description

Filter and communication device Technical Field The present application relates to the field of communications technologies, and in particular, to a filter and a communications device. Background The filter generally comprises a cavity, a cover plate, a resonant rod and a tuning screw rod, wherein the cover plate is arranged on the cavity in a covering mode, the resonant rod is arranged in the cavity, the tuning screw rod is connected with the cover plate in a threaded mode, and the distance between the tuning screw rod and the resonant rod is changed by rotating the tuning screw rod, so that the resonant frequency of the filter is adjusted. Because the filter adopts this fixed tuning mode generally, lead to the tuning mode singleness, and in this kind of tuning mode, the tuning screw rod need pass through the helicitic texture cooperation with the apron, easily produces the metal piece and falls into the cavity, influences the performance of filter. Disclosure of Invention The embodiment of the application provides a filter and communication equipment, which can solve the technical problems that the tuning mode of the filter is single and the performance of the filter is easy to influence. In a first aspect, an embodiment of the present application provides a filter, including: the shell structure is internally provided with a resonant cavity and comprises a connecting part and a deforming part which are oppositely arranged; A resonator located in the resonant cavity and connected to the connecting portion or the deforming portion, and The adjusting piece is positioned in the resonant cavity and connected with the connecting part and the deformation part; The connecting part or the deformation part is provided with a through hole, the adjusting piece is positioned at the through hole, and the adjusting piece can be stressed to move relative to the connecting part and/or the deformation part so as to drive the deformation part to deform. The technical scheme provided by the embodiment of the application has at least the following technical effects or advantages: According to the filter provided by the embodiment of the application, the force can be applied to the adjusting piece at the through hole, so that the force applied to the adjusting piece moves relative to the connecting part and/or the deforming part, the deforming part is deformed, the relative position between the deforming part and the resonator (in the case that the resonator is connected to the connecting part) or the relative position between the resonator and the connecting part (in the case that the resonator is connected to the deforming part) can be changed by deforming the deforming part, so that the resonant frequency can be adjusted, a scheme of threaded connection of the tuning screw and the cover plate is not needed, namely a new tuning mode is provided, more possibility is provided for improving the problem that the performance of the filter is easily affected by threaded connection of the tuning screw and the cover plate, and the performance index of the filter is improved under the condition of being beneficial to tuning. In some embodiments, the resonator is connected to the connection portion, and the adjustment member is connected to the connection portion through the resonator, or The resonator is connected to the deformation portion, and the adjusting member is connected to the deformation portion through the resonator. In some embodiments, the resonator is provided with a threaded hole, and the adjusting piece is in threaded connection with the threaded hole. In some embodiments, the resonator comprises: A resonance tube connected to the connection portion or the deformation portion, the resonance tube having an opening hole, and The fixing piece is positioned in the opening hole and is fixed on the resonance tube; wherein, the regulating part is connected with the fixing part. In some embodiments, the adjusting member includes a first portion and a second portion connected to each other, the first portion being connected to one of the connecting portion and the deformation portion in which the through hole is opened, the second portion being connected to the other of the connecting portion and the deformation portion; The material of the first part comprises a metal material for electromagnetically closing the through hole, and the material of the second part comprises plastic, or The material of the first portion and the material of the second portion each comprise plastic. In some embodiments, the deformation portion is provided with the through hole, and the adjusting member includes: A first abutting part, which is positioned outside the resonant cavity and is used for abutting against one side of the deformation part away from the connecting part, and The connecting rod is positioned in the resonant cavity, one end of the connecting rod penetrates through the through hole and is connected to the first abutting part, a