Filter port connecting structure

Abstract

The utility model discloses a filter port connecting structure which comprises a cavity, a port structure body is installed in the cavity, a resonator is installed on the port structure body, the resonator is located in the cavity, a cover plate is installed on the top of the cavity, a connector base is installed on the top of the cover plate, a connector is installed in the connector base, and the connector is connected with the cavity. The connector is provided with a connector PIN, the connector PIN is wrapped with an insulating sleeve, and the bottom of the connector PIN is inserted into the port structure body. According to the utility model, the structure of the cavity can be directly used for signal conduction, the number of parts is reduced, and the cost is reduced; meanwhile, the port does not need to be welded, the connector PIN needle can be directly inserted into the port structure body to form capacitive coupling, and the connector PIN needle is used for conducting signals, so that the welding risk is avoided, and the stability and the consistency are extremely high.

Description

Technical Field

[0001] The utility model relates to the technical field of communication filters, in particular to a filter port connection structure. Background Art

[0002] Prior art patent 1: a filter port connection structure, authorization announcement number CN213752985U. The connection between the ports of the prior art patent 1 is based on a connecting piece for signal transmission. The connecting piece needs to be welded to the connector. To ensure the welding quality, welding space needs to be reserved in the design, and the prior art patent 1 has many types of materials, which is not conducive to mass production. The port connection of the prior art patent 1 has a certain installation sequence. The connecting piece is first fixed under the resonator, and the connecting rod is then welded to the connecting piece. If the installation sequence is changed to welding the connecting piece first and then fixing it, the connecting piece may not be fixed under the resonator, resulting in port failure. In the prior art patent 1, the connector needs to be welded to the connecting piece, and the disadvantage is that there is a welding risk.

[0003] Prior art patent 2: a new capacitive port coupling structure, authorization announcement number CN216353804U. Prior art patent 2 is also a capacitive coupling port. The lower end of the coupling screw is fixedly connected to the coupling assembly by welding. The depth of the coupling screw, that is, the distance between the coupling assembly and the connecting rod is adjusted to adjust the port delay. There are many components, which is not conducive to production. The port of prior art patent 2 has an installation sequence. The coupling screw and the coupling assembly must be welded first, and then assembled in the cavity. Otherwise, welding cannot be performed. Utility Model Content

[0004] The purpose of the utility model is to provide a filter port connection structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filter port connection structure, comprising a cavity, a port structure body is installed in the cavity, and a resonator is installed on the port structure body, the resonator is located in the cavity, a cover plate is installed on the top of the cavity, and a connector base is installed on the top of the cover plate, and a connector is installed in the connector base, a connector PIN needle is installed on the connector, and the connector PIN needle is wrapped with an insulating sleeve, and the bottom of the connector PIN needle is inserted into the port structure body.

[0006] Preferably, the insulating sleeve wraps the connector PIN pin by heat shrink packaging.

[0007] Preferably, the connector is assembled with the connector base by threaded fixation.

[0008] Preferably, the connector base is fixed on the cover plate to form an integral body.

[0009] Preferably, the connector PIN needle passes through the connector base and the cover plate and is inserted into the inner hole of the port structure.

[0010] Preferably, the resonator is mounted on the port structure by screws.

[0011] Preferably, the top of the resonator is fixed to the bottom of the cover plate by a frequency screw.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The cavity structure itself can be directly used for signal transmission, reducing the number of parts and reducing costs;

[0014] 2. The port does not need to be welded, and the connector PIN can be directly inserted into the port structure to form capacitive coupling, which is used for signal conduction, avoiding welding risks and having extremely high stability and consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the explosion structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the time delay simulation curve of the utility model.

[0018] In the figure: 1. Cavity; 2. Connector base; 3. Connector; 4. Cover plate; 5. Frequency screw; 6. Connector PIN; 7. Insulating sleeve; 8. Resonator; 9. Screw; 10. Port structure. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3The utility model provides a technical solution: a filter port connection structure, including a cavity 1, a port structure 10 is installed in the cavity 1, and a resonator 8 is installed on the port structure 10, the resonator 8 is located in the cavity 1, a cover plate 4 is installed on the top of the cavity 1, and a connector base 2 is installed on the top of the cover plate 4, and a connector 3 is installed in the connector base 2, a connector PIN needle 6 is installed on the connector 3, and the connector PIN needle 6 is wrapped with an insulating sleeve 7, the bottom of the connector PIN needle 6 is inserted into the port structure 10, and the PIN needle of the connector is inserted into the cavity port structure to form a capacitive coupling, and the electromagnetic signal enters the filter resonant cavity using this coupling structure to complete signal conduction.

[0021] In the utility model, the insulating sleeve 7 wraps the connector PIN 6 by heat shrinking.

[0022] In the utility model, the connector 3 and the connector base 2 are assembled by threaded fixing.

[0023] In the utility model, the connector base 2 is fixed on the cover plate 4 to form an integral body.

[0024] In the present invention, the connector PIN needle 6 passes through the connector base 2 and the cover plate 4 and is inserted into the inner hole of the port structure 10, thereby forming a capacitive coupling.

[0025] In the present invention, the resonator 8 is mounted on the port structure 10 by means of screws 9 .

[0026] In the utility model, the top of the resonator 8 is fixed on the cover plate 4 by the frequency screw 5 .

[0027] The utility model: In order to meet the miniaturized spatial structure of the filter, we have carried out a simulation design of the filter port and optimized the design of the filter port. The connector PIN needle 6 is inserted into the port structure 10 to form a capacitive coupling. The signal can be conducted through the capacitive coupling, so the signal can enter the filter from the connector. The port structure 10 completes the signal transmission between the connector and the resonator 8; the port structure 10 can also control the strength of the time delay, that is, the time delay is changed by the height of the port structure 10. This structure is easy to install, has a small number of material types, no welding points, high stability, can improve production efficiency, and has low cost.

[0028] In the design of the filter, it is necessary to solve the problem of the connection method between the connector and the resonator. The usual method is to use a conductive wire or sheet of a certain shape to manually weld the two together. This method requires at least two welding points, and each welding point requires a certain welding space for operation. With the development of communication base station equipment, more compact structural requirements are put forward for filters. If the usual port connection method is used, more welding space cannot be reserved, which increases the difficulty of welding, reduces the welding quality, and poses risks to the product. The utility model reduces the number of welds and saves space structure through capacitive coupling. It does not require the conductive wire / sheet to be welded to the resonator. The transmission of the filter electromagnetic signal can be completed through the internal structure of the cavity. It has no effect on the performance of the filter, and has high stability, which is conducive to the mass production of the filter.

[0029] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the embodiments of the utility model have been shown and described, it is understandable to those of ordinary skill in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A filter port connection structure, characterized in that: The invention comprises a cavity (1), wherein a port structure (10) is installed in the cavity (1), and a resonator (8) is installed on the port structure (10), and the resonator (8) is located in the cavity (1), and a cover plate (4) is installed on the top of the cavity (1), and a connector base (2) is installed on the top of the cover plate (4), and a connector (3) is installed in the connector base (2), and a connector PIN needle (6) is installed on the connector (3), and the connector PIN needle (6) is wrapped with an insulating sleeve (7), and the bottom of the connector PIN needle (6) is inserted into the port structure (10).

2. A filter port connection structure according to claim 1, characterized in that: The insulating sleeve (7) wraps the connector PIN pin (6) by heat shrinking.

3. A filter port connection structure according to claim 1, characterized in that: The connector (3) is assembled and fixed with the connector base (2) by threading.

4. A filter port connection structure according to claim 1, characterized in that: The connector base (2) is fixed on the cover plate (4) to form a whole.

5. A filter port connection structure according to claim 1, characterized in that: The connector PIN needle (6) passes through the connector base (2) and the cover plate (4) and is inserted into the inner hole of the port structure (10).

6. A filter port connection structure according to claim 1, characterized in that: The resonator (8) is mounted on the port structure (10) by means of screws (9).

7. A filter port connection structure according to claim 1, characterized in that: The top of the resonator (8) is fixed to the bottom of the cover plate (4) via a frequency screw (5).

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