Device for debugging capacitance of filter

Abstract

The utility model relates to the technical field of mobile communication, in particular to a device for debugging capacitance of a filter, which comprises a capacitor seat, a round blind hole is longitudinally arranged on the end face of a first end of the capacitor seat, a fly rod hole is transversely arranged on the end portion of a second end of the capacitor seat, and the first end of the capacitor seat is used for butting a tuning screw. The end part of the tuning screw can be inserted into the circular blind hole, the fly rod hole is used for connecting a fly rod, the distance between the inner end of the circular blind hole and the fly rod hole is not less than 2mm, two opposite side surfaces of the capacitor seat are concave inwards to form grooves, and the capacitor body is mounted in the grooves. According to the utility model, the production repair rate can be reduced, the debugging speed is improved, and the product production efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mobile communication technical field, concretely relates to a device for debugging filter capacitor size. BACKGROUND

[0002] The flying rod capacitor in the filter, the diplexer, the combiner etc. of the flying rod capacitor device for use now is too strong or too weak, needs to adjust it, such as adjustment needs to repeatedly dismount the cover plate, and then carries out the debugging of strengthening or weakening again. For the cavity filter, the prior art has the technical problem that the product debugging is difficult due to the strength of the capacitor, and the maintenance rate is high. SUMMARY

[0003] To solve the problems in the background art, the utility model provides a device for debugging filter capacitor size, which can reduce the production repair rate, improve the debugging speed and effectively improve the product production efficiency.

[0004] To solve the above problems, the utility model adopts the following technical scheme: a device for debugging filter capacitor size, comprising a capacitor seat, a circular blind hole is formed on the end face of the first end of the capacitor seat in the longitudinal direction, a flying rod hole is formed on the end of the second end of the capacitor seat in the transverse direction, the first end of the capacitor seat is used for butt joint tuning screw rod, the end of the tuning screw rod can be inserted into the circular blind hole, the flying rod hole is used for connecting the flying rod, the distance between the inner end of the circular blind hole and the flying rod hole is not less than 2mm, the two opposite sides of the capacitor seat are concave to form grooves, and the capacitor body is installed in the grooves.

[0005] Further, the material of the capacitor seat is polytetrafluoroethylene.

[0006] Further, the diameter of the circular blind hole is 4.2mm, and the diameter of the tuning screw rod is 4mm.

[0007] Still further, chamfers are arranged at the corners of the second end of the capacitor seat.

[0008] Further, the cross section of the capacitor seat is an I-shaped section.

[0009] The utility model has the advantages that the utility model forms a circular blind hole with a diameter of 4.2mm on the capacitor seat, the size of the capacitor is adjusted by changing the distance between the tuning screw rod and the bottom of the circular blind hole, compared with the traditional capacitor with fixed capacity applied to the cavity filter, the capacity of the capacitor is in an adjustable range, the maintenance time of the large positive and negative deviation of the capacitor in the production process of the cavity filter is shortened, the production repair rate is reduced, and the production efficiency of the product is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0011] Fig. 1 This is a three-dimensional structural diagram of the present invention;

[0012] Fig. 2 This is a cross-sectional view of the present invention;

[0013] Fig. 3 This is a top view of the present invention;

[0014] Fig. 4 This is a schematic diagram showing the connection between the fly stick and the capacitor base.

[0015] 1. Capacitor base; 2. Circular blind hole; 3. Flying rod hole; 4. Flying rod; 5. Groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] This invention features a 4.2mm diameter circular blind hole 2 on the capacitor base 1. By changing the distance between the tuning screw and the bottom of the circular blind hole 2, the capacitance value can be adjusted. Compared to traditional capacitors with fixed capacitance used in cavity filters, this invention allows the capacitance value to be within an adjustable range, shortening the repair time for large positive and negative deviations in the cavity filter production process, reducing the production rework rate, and effectively improving product production efficiency.

[0018] Specifically, such as Figs. 1 to 4 As shown, a device for adjusting the size of a filter capacitor includes a capacitor base 1. A circular blind hole 2 is longitudinally formed on the end face of the first end of the capacitor base 1. A fly rod hole 3 is transversely formed on the end face of the second end of the capacitor base 1. The first end of the capacitor base 1 is used to connect to a tuning screw. The end of the tuning screw can be inserted into the circular blind hole 2. The fly rod hole 3 is used to connect a fly rod 4. The distance between the inner end of the circular blind hole 2 and the fly rod hole 3 is not less than 2mm. Both opposite sides of the capacitor base 1 are recessed to form grooves 5. The grooves 5 are used to install the capacitor body.

[0019] Furthermore, the capacitor holder 1 is made of polytetrafluoroethylene (PTFE). PTFE capacitor holder 1 has good resistance to high and low temperatures, electrical insulation, and corrosion resistance.

[0020] Further, the diameter of the circular blind hole 2 is 4.2mm, and the diameter of the tuning screw is 4mm.

[0021] Still further, the corner of the second end of the capacitor holder 1 is chamfered.

[0022] Further, the cross section of the capacitor holder 1 is H-shaped.

[0023] In use, a circular blind hole 2 with a diameter of 4.2mm is formed in the capacitor holder 1, and the distance between the tuning screw and the bottom of the circular blind hole 2 is changed to adjust the size of the capacitor.

[0024] The above is only a preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A device for debugging filter capacitor size, characterized by: The capacitor holder (1) has a circular blind hole (2) longitudinally formed on the end face of the first end of the capacitor holder (1), and a fly rod hole (3) transversely formed on the end of the second end of the capacitor holder (1), the first end of the capacitor holder (1) is used for abutting a tuning screw, the end of the tuning screw is inserted into the circular blind hole (2), the fly rod hole (3) is used for connecting a fly rod (4), the distance between the inner end of the circular blind hole (2) and the fly rod hole (3) is not less than 2 mm, the two opposite sides of the capacitor holder (1) are concave to form grooves (5), and the grooves (5) are used for mounting capacitor bodies.

2. A device for tuning filter capacitance size as claimed in claim 1, wherein: The capacitor holder (1) is made of polytetrafluoroethylene.

3. The apparatus for tuning a filter capacitor size as recited in claim 1, wherein: The diameter of the circular blind hole (2) is 4.2 mm, and the diameter of the tuning screw is 4 mm.

4. The apparatus for tuning a filter capacitor size as recited in claim 1, wherein: The second end of the capacitor holder (1) is chamfered at the corners.

5. The apparatus for tuning a filter capacitor size as defined in Claim 1, wherein: The capacitor holder (1) has an H-shaped cross section.

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