Integrated tap resonator

Abstract

The invention, which relates to the technical field of radio frequency signal processing, discloses an integrated tap resonator comprising a filter box, a tap coupling sheet and a resonator body. The filter box is of an internal hollow structure, the tap coupling piece and the resonator body are both located in the hollow structure, and the tap coupling piece and the resonator body are integrally formed; a tuning screw is arranged on the inner wall of the upper side of the filter box, and the filter box is matched with the upper end of the resonator body through the tuning screw; a supporting seat is integrally formed on the inner wall of the lower side of the filter box, and the lower end of the resonator body is matched with the supporting seat through a fixing screw; according to the scheme, the tap coupling piece and the resonator body are integrally formed through the stamping technology, and the quality instability and possible welding defects such as cold welding and surfacing in the welding process are avoided; and meanwhile, emission of harmful substances and health risks of operators in the welding process are reduced, and environment friendliness and operation safety are facilitated.

Description

Technical Field

[0001] The invention relates to an integrated tapped resonator, belonging to the technical field of radio frequency signal processing. Background Art

[0002] In traditional metal cavity filters, the tap coupling plate is usually connected to the resonator body by welding. Although this method is widely used, it brings multiple technical challenges and manufacturing risks. First, the instability of welding quality, including cold welding and surfacing, as well as the cleaning of welding residues, may affect the performance of the final product. Secondly, even if the welding quality of the solder joint is good, the installation torque during the assembly stage may cause the solder joint to tear, adding additional production costs. These problems may cause the quality factor and intermodulation value of the filter to decrease, which in turn affects the signal processing capability of the overall device. Summary of the invention

[0003] In view of the above-mentioned technical problems, the purpose of the present invention is to propose an integrated tapped resonator.

[0004] The technical solution of the present invention is achieved as follows: an integrated tapped resonator comprises a filter box, a tapped coupling plate and a resonator body; the filter box is an internal hollow structure, the tapped coupling plate and the resonator body are both located in the hollow structure, and the tapped coupling plate and the resonator body are integrally formed; a tuning screw is provided on the upper inner wall of the filter box, and the filter box cooperates with the upper end of the resonator body through the tuning screw; a support seat is integrally formed on the lower inner wall of the filter box, and the lower end of the resonator body cooperates with the support seat through a fixing screw; a connector is provided on the outer wall of the filter box, an inner core conductor is provided in the connector, a connecting portion is integrally formed on the tapped coupling plate, and the tapped coupling plate is connected to the inner core conductor through the connecting portion.

[0005] Preferably, the resonator body is an internal hollow structure, and the upper end of the resonator body has an opening, and the tuning screw of the filter box cooperates with the upper end opening of the resonator body.

[0006] Preferably, the opening of the resonator body is a gradually changing diameter structure, and the diameter of the opening of the resonator body increases gradually from the inside to the outside.

[0007] Preferably, a through hole for a fixing screw to pass through is provided at the bottom of the resonator body, and when the fixing screw is connected to the support seat, the fixing screw blocks the through hole.

[0008] Preferably, the connection portion of the tap coupling piece is a straight connection structure, and the tap coupling piece is connected to the inner core conductor through the straight connection structure.

[0009] Preferably, the connection portion of the tap coupling piece is a bent-type connection structure, and the tap coupling piece is connected to the inner core conductor via the bent-type connection structure.

[0010] Preferably, the connection portion of the tap coupling piece is a bent-type connection structure, an end of the bent-type connection structure is provided with a mounting hole, and the tap coupling piece is connected to the inner core conductor through the mounting hole at the end of the bent-type connection structure.

[0011] Preferably, the tap coupling plate and the resonator body are integrally formed by stamping.

[0012] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0013] 1. The present invention integrates the tap coupling plate and the resonator body into one by a stamping process, thereby avoiding quality instability and possible welding defects such as cold welding and surfacing during the welding process; at the same time, it reduces the emission of harmful substances and the health risks of operators during the welding process, which is conducive to environmental friendliness and safe operation.

[0014] 2. The stamping integrated design of the present invention eliminates the risk of solder joint tearing caused by installation torque and enhances the structural integrity of the tap resonator.

[0015] 3. The present invention simplifies the production process, reduces the additional maintenance costs and production delays caused by welding quality problems, thereby reducing costs and improving production efficiency; at the same time, the stamping process is easy to standardize and automate, which is conducive to mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0017] Attached Figure 1 It is a structural schematic diagram of an integrated tapped resonator according to the present invention;

[0018] Attached Figure 2 It is a structural schematic diagram of an integrated tapped resonator according to the present invention without a filter box;

[0019] Attached Figure 3 For attachment Figure 2 A cross-sectional view of

[0020] Attached Figure 4 A schematic diagram of a first embodiment of the connection portion of the present invention;

[0021] Attached Figure 5 It is a schematic diagram of a second embodiment of the connection portion of the present invention;

[0022] Attached Figure 6 It is a schematic diagram of the third embodiment of the connection part described in the present invention.

[0023] In the figure: 1, filter box; 2, tap coupling plate; 3, resonator body; 4, tuning screw; 5, support base; 6, fixing screw; 7, connector; 8, inner core conductor; 9, connecting part; 9a, straight connection structure; 9b, bent connection structure; 9c, mounting hole; 10, opening; 11, through hole. DETAILED DESCRIPTION

[0024] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "straight", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] As attached Figure 1-3 As shown, an integrated tapped resonator described in the present invention comprises a filter box 1, a tap coupling plate 2 and a resonator body 3.

[0028] Among them, the filter box 1 is an internal hollow structure, the tap coupling plate 2 and the resonator body 3 are both located in the hollow structure, and the tap coupling plate 2 and the resonator body 3 are integrally formed. In this embodiment, the tap coupling plate 2 and the resonator body 3 are integrally formed by a stamping process; compared with the traditional welding method, this structure has the following advantages: First, the tap coupling plate 2 and the resonator body 3 are directly formed into an integrated metal structure through stamping technology, without welding, thereby eliminating the possibility of welding defects and making the tap resonator more stable; second, the integrated design avoids the thermal stress generated during the welding process and the physical stress in the assembly stage, such as structural damage caused by the installation torque; third, it avoids the signal loss or interference that may be caused by welding residue, thereby ensuring the signal transmission consistency and stability of the tap resonator.

[0029] A tuning screw 4 is provided on the upper inner wall of the filter box 1. In the present embodiment, the tuning screw 4 is integrally formed on the filter box 1. The resonator body 3 is an internal hollow structure, and the upper end of the resonator body 3 has an opening 10. The opening 10 of the resonator body 3 is a gradual diameter structure. The diameter of the opening 10 of the resonator body 3 increases from the inside to the outside. The tuning screw 4 of the filter box 1 cooperates with the upper end opening 10 of the resonator body 3.

[0030] A support seat 5 is integrally formed on the lower inner wall of the filter box 1, and the lower end of the resonator body 3 is matched with the support seat 5 through a fixing screw 6. In this embodiment, a through hole 11 is opened at the bottom of the resonator body 3 for the fixing screw 6 to pass through. When the fixing screw 6 is connected to the support seat 5, the fixing screw 6 blocks the through hole 11.

[0031] A connector 7 is provided on the outer wall of the filter box 1 , and the connector 7 is integrally formed on the outer wall of the filter box 1 . An inner core conductor 8 is provided inside the connector 7 . A connecting portion 9 is integrally formed on the tap coupling piece 2 , and the tap coupling piece 2 is connected to the inner core conductor 8 through the connecting portion 9 .

[0032] The present application provides the following several implementations of the connection portion 9 for connecting the integrated structure formed by the tap coupling plate 2 and the resonator body 3 to the inner core conductor 8 .

[0033] Implementation method 1:

[0034] As attached Figure 4 As shown, the connecting portion 9 of the tap coupling plate 2 is a straight connecting structure 9a, and the tap coupling plate 2 is connected to the inner core conductor 8 through the straight connecting structure 9a. The straight connecting structure 9a here is defined as the structure being straight as a whole, that is, flat, without any bends, which is different from the bending structure in the second embodiment.

[0035] Implementation method 2:

[0036] As attached Figure 5 As shown, the connection portion 9 of the tap coupling piece 2 is a bent type connection structure 9b, and the tap coupling piece 2 is connected to the inner core conductor 8 via the bent type connection structure 9b.

[0037] Implementation method three:

[0038] As attached Figure 6 As shown, the connecting portion 9 of the tap coupling piece 2 is a bending type connecting structure 9b, and a mounting hole 9c is provided at the end of the bending type connecting structure 9b. The tap coupling piece 2 is connected to the inner core conductor 8 through the mounting hole 9c at the end of the bending type connecting structure 9b, and the mounting hole 9c needs to be used with a special screw to connect the two.

[0039] During application, any one of the connection portion 9 structures in the above three implementations can be selected according to actual conditions, which can improve adaptability and facilitate installation.

[0040] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. They cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated tapped resonator, characterized in that: The invention comprises a filter box (1), a tap coupling plate (2) and a resonator body (3); the filter box (1) is an internal hollow structure, the tap coupling plate (2) and the resonator body (3) are both located in the hollow structure, and the tap coupling plate (2) and the resonator body (3) are integrally formed; a tuning screw (4) is provided on the upper inner wall of the filter box (1), and the filter box (1) cooperates with the upper end of the resonator body (3) through the tuning screw (4); a support seat (5) is integrally formed on the lower inner wall of the filter box (1), and the lower end of the resonator body (3) cooperates with the support seat (5) through a fixing screw (6); a connector (7) is provided on the outer wall of the filter box (1), an inner core conductor (8) is provided in the connector (7), a connecting portion (9) is integrally formed on the tap coupling plate (2), and the tap coupling plate (2) is connected to the inner core conductor (8) through the connecting portion (9).

2. The integrated tapped resonator according to claim 1, characterized in that: The resonator body (3) is an internal hollow structure, and the upper end of the resonator body (3) has an opening (10), and the tuning screw (4) of the filter box (1) cooperates with the upper end opening (10) of the resonator body (3).

3. An integrated tapped resonator according to claim 1 or 2, characterized in that: The opening (10) of the resonator body (3) is a gradually changing diameter structure, and the diameter of the opening (10) of the resonator body (3) increases from the inside to the outside.

4. The integrated tapped resonator according to claim 1, characterized in that: A through hole (11) for a fixing screw (6) to pass through is provided at the bottom of the resonator body (3); when the fixing screw (6) is connected to the support seat (5), the fixing screw (6) blocks the through hole (11).

5. The integrated tapped resonator according to claim 1, characterized in that: The connection portion (9) of the tap coupling piece (2) is a straight connection structure (9a), and the tap coupling piece (2) is connected to the inner core conductor (8) via the straight connection structure (9a).

6. The integrated tapped resonator according to claim 1, characterized in that: The connection portion (9) of the tap coupling piece (2) is a bent-type connection structure (9b), and the tap coupling piece (2) is connected to the inner core conductor (8) via the bent-type connection structure (9b).

7. The integrated tapped resonator according to claim 1, characterized in that: The connection portion (9) of the tap coupling piece (2) is a bent-type connection structure (9b), and a mounting hole (9c) is provided at the end of the bent-type connection structure (9b). The tap coupling piece (2) is connected to the inner core conductor (8) via the mounting hole (9c) at the end of the bent-type connection structure (9b).

8. The integrated tapped resonator according to claim 1, characterized in that: The tap coupling plate (2) and the resonator body (3) are integrally formed by stamping.

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