CN214153152U - Debugging clamp for dielectric ceramic filter - Google Patents

Abstract

The utility model discloses a dielectric ceramic filter debugging clamp, which comprises a base, a cover plate and a PCB; the base is provided with a containing groove, and the PCB is positioned in the containing groove; the upper surface of the PCB is provided with an elastic conductive element and a conductive foil, the dielectric ceramic filter is positioned above the PCB, and the PCB is electrically connected with the dielectric ceramic filter through the elastic conductive element; the cover plate is positioned on the top of the dielectric ceramic filter and used for pressing the dielectric ceramic filter. The utility model discloses a debugging anchor clamps set up elasticity conductive element and conductive foil piece on the PCB board, and dielectric ceramic filter passes through elasticity conductive element and PCB board electric connection, and under the pressure effect of apron, elasticity conductive element takes place elastic deformation, guarantees that PCB board and dielectric ceramic filter can good contact, and the PCB board impedance of the conductive foil piece assurance between the different anchor clamps that set up on the PCB board is unanimous, makes the product electric property value after the debugging of different anchor clamps unanimous.

Description

Debugging clamp for dielectric ceramic filter

Technical Field

The utility model relates to a debugging anchor clamps especially relate to a dielectric ceramic filter debugging anchor clamps.

Background

In the future, the miniaturization and the light weight of the device are more and more emphasized by the 5G base station, and the dielectric ceramic filter becomes a main choice of mainstream equipment manufacturers by virtue of the advantages of light weight, good temperature drift resistance and miniaturization on the premise of meeting the performance; the subsequent procedures in the production process of the dielectric ceramic filter need to debug the dielectric ceramic filter, the existing mainstream debugging method is compression joint debugging and welding debugging, a compression joint debugging mode is adopted, convenience and rapidness are realized, but the defect that the electrical property requirement of a finished product cannot be met after welding of a client exists, and the consistency of the debugged product is poor; the required electrical property can be accurately debugged by adopting welding debugging, but the debugging is completed and then the welding needs to be disassembled, so that the operation is complex and the mass production cannot be realized.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is for solve the wave filter that adopts behind the debugging of different debugging anchor clamps among the prior art and test the problem that can't satisfy finished product electrical property requirement and uniformity poor on check out test set, provide a dielectric ceramic wave filter debugging anchor clamps.

The utility model provides a dielectric ceramic filter debugging clamp, which comprises a base, a cover plate and a PCB (printed circuit board);

the base is provided with a containing groove, and the PCB is positioned in the containing groove;

the upper surface of the PCB is provided with an elastic conductive element and a conductive foil, the dielectric ceramic filter is positioned above the PCB, and the PCB is electrically connected with the dielectric ceramic filter through the elastic conductive element;

the cover plate is positioned on the top of the dielectric ceramic filter and used for pressing the dielectric ceramic filter.

Preferably, the elastic conductive element is located at the input and output holes of the PCB and at the ground ring of the PCB.

Preferably, the conductive foil is located at a microstrip line of the PCB board.

Preferably, the PCB board is provided with a positioning element for fixing the dielectric ceramic filter, and the height of the positioning element is smaller than the height of the dielectric ceramic filter.

Preferably, the pad position of the PCB board is provided with an elastic conductive element.

Preferably, the dielectric ceramic filter debugging clamp further comprises a connector, a through hole is formed in the base, and the connector is fixed to the base through the through hole and fixedly connected with the PCB.

Preferably, the elastic conductive element is round or square, and the base and the cover plate are made of metal.

Preferably, the cover plate is provided with a connection port for connection with a pneumatic device.

Preferably, a buffer component is arranged at the position where the base contacts with the cover plate, and the buffer component has elasticity and is conductive.

Preferably, the base is provided with a positioning pin hole.

The beneficial effects of the utility model include: the utility model discloses a debugging anchor clamps set up elasticity conductive element and conductive foil piece on the PCB board, and dielectric ceramic filter passes through elasticity conductive element and PCB board electric connection, and under the pressure effect of apron, elasticity conductive element takes place elastic deformation, guarantees that PCB board and dielectric ceramic filter can good contact, and the PCB board impedance of the conductive foil piece assurance between the different anchor clamps that set up on the PCB board is unanimous, makes the product electric property value after the debugging of different anchor clamps unanimous.

Drawings

Fig. 1 is an exploded schematic view of the debugging fixture for dielectric ceramic filter provided by the present invention.

Fig. 2 is a schematic top view of the dielectric ceramic filter tuning jig.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following embodiments. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention or its application.

Non-limiting and non-exclusive embodiments will be described with reference to the following figures, wherein like reference numerals refer to like parts, unless otherwise specified.

As shown in fig. 1-2, the present embodiment provides a dielectric ceramic filter debugging fixture (hereinafter, may be simply referred to as a debugging fixture), which is used for debugging a dielectric ceramic filter, and mainly includes a base 5, a cover plate 8 and a PCB 1; the base 5 is provided with an accommodating groove, the PCB 1 is placed in the accommodating groove, the surface of the PCB 1 is provided with an elastic conductive element 4 and a conductive foil 3, the dielectric ceramic filter 2 is positioned above the PCB 1, and the PCB 1 and the dielectric ceramic filter 2 are electrically connected through the elastic conductive element 4; the cover plate 8 is positioned on top of the dielectric ceramic filter 2 for pressing the dielectric ceramic filter 2. When crimping is debugged, the dielectric ceramic filter is arranged above the PCB in the accommodating groove and is electrically connected with the PCB 1 through the elastic conductive element 4, the cover plate 8 is pressed on the top of the dielectric ceramic filter, the elastic conductive element 4 can play a role in enabling the dielectric ceramic filter 2 to be in good contact with the PCB 1, and the conductive foil piece can play a role in improving the consistency of products after crimping and debugging.

Specifically, the elastic conductive member is located at a position where the PCB and the dielectric ceramic filter need to be electrically connected, and preferably, the elastic conductive member 4 is located at an input/output hole (e.g., reference numeral 41 in fig. 2) and a ground ring (e.g., reference numeral 42 in fig. 2) of the PCB 1. The elastic conductive element 4 is, but not limited to, conductive cotton, for example, the conductive cotton is adhered to the input/output hole position of the PCB, which corresponds to the input/output hole of the dielectric ceramic filter, and the conductive cotton is adhered to the outer ring of the input/output hole position of the PCB, which corresponds to the outer ring of the input/output hole position of the dielectric ceramic filter. The edge of the PCB board can also be provided with an elastic conductive element. When the cover plate 8 applies pressure to the dielectric ceramic filter 2, the dielectric ceramic filter 2 and the PCB 1 are ensured to be in good contact through the plastic deformation of the elastic conductive element 4, so that effective connection is realized. The shape of the elastic conductive element 4 is preferably square or round, plastic deformation can occur in the using process, the elastic conductive element can be replaced regularly in actual operation, and the elastic conductive element can be replaced conveniently after being worn by adopting a sticking mode.

Specifically, the conductive foil 3 is located at the microstrip line of the PCB, and the conductive foil 3 is used for changing the structure of the microstrip line, so as to make up for the defect of inconsistent impedance of the PCB caused by the manufacturing process of different clamps, and effectively reduce the difference of the electrical parameters of the debugged product. In a preferred mode, the conductive foil 3 is, but not limited to, an aluminum foil, the thickness of the conductive foil is less than 7mm, and the length and width dimensions of the conductive foil are adaptively adjusted according to the dimensions of the microstrip line.

In order to ensure that the placing position of the dielectric ceramic filter 2 is not deviated, the PCB board 1 is provided with a positioning element 9. The positioning element 9 is fixedly connected with the PCB board 1 through screws, the height of the positioning element 9 is smaller than that of the dielectric filter ceramic filter 2, and the positioning element 9 shown in FIG. 1 comprises four unit components with the same shape and size. In a more preferred embodiment, the base 5 is provided with positioning pin holes, as shown in fig. 1, which are located on two opposite side walls of the base and cooperate with the positioning pins for further positioning the dielectric ceramic filter.

In order to further ensure that the dielectric ceramic filter 2 has good contact with the PCB 1, an elastic conductive element is also disposed at a pad (e.g., reference numeral 43 in fig. 2) of the PCB 1 to improve the accuracy of the debugging result, and further, an elastic conductive element is also disposed at a corner of the PCB. In order to prevent the dielectric ceramic filter from being crushed, a buffer member 7 is disposed at a position where the base 5 contacts the cover plate 8, the buffer member 7 has elasticity and is electrically conductive, and the shape is not limited to a long strip shape.

The dielectric ceramic filter debugging clamp further comprises a connector 6, through holes are formed in two opposite side walls of the base, the connector 6 is fixed on the base 5 through the through holes by screws, one end of the connector is fixedly connected with the PCB, the fixed connection mode in the embodiment is welding so as to ensure that the base 5 and the PCB are connected into a whole, and the other end of the connector is connected with the network analyzer.

The base 5 and the cover 8 are made of metal. The containing groove is positioned at the center of the base 5, the length and the width of the containing groove are matched with the size of the PCB, and the depth of the containing groove is matched with the sum of the thicknesses of the dielectric ceramic filter and the PCB. And a connector connected with a pneumatic device is arranged on the cover plate 8, so that the cover plate 8 can be quickly lifted through the pneumatic device, and the medium ceramic filter 2 and the PCB 1 can be effectively pressed. The cover plate 8 is a hollow structure, the size of the hollow structure is matched with the size of the filter to be debugged, but the debugging position is not interfered, so that the subsequent debugging work is facilitated. During debugging, the cover plate 8 and the base 5 form a closed loop, which can prevent signal leakage during debugging and prevent external signal interference.

The utility model discloses a dielectric ceramic filter debugging anchor clamps, through set up the aluminium foil in PCB board's microstrip line department, guaranteed that the product electrical property value after different anchor clamps debug is unanimous, through set up elasticity conductive element in the position that PCB board and dielectric ceramic filter need the electricity to be connected, guaranteed that PCB board can have good electricity with dielectric ceramic filter to be connected; and the state of the debugging clamp for debugging the crimping is close to the state of debugging the welding, so that the debugging clamp can also be used for simulating the debugging condition of the welding debugging, and the performance of the products after the welding debugging and the crimping debugging can be consistent.

Those skilled in the art will recognize that numerous variations are possible in light of the above description, and therefore the examples and drawings are merely intended to describe one or more specific embodiments.

While there has been described and illustrated what are considered to be example embodiments of the present invention, it will be understood by those skilled in the art that various changes and substitutions can be made therein without departing from the spirit of the invention. In addition, many modifications may be made to adapt a particular situation to the teachings of the present invention without departing from the central concept described herein. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but may include all embodiments and equivalents falling within the scope of the present invention.

Claims (10)

1. A dielectric ceramic filter debugging clamp is characterized by comprising a base, a cover plate and a PCB (printed Circuit Board);

the base is provided with a containing groove, and the PCB is positioned in the containing groove;

the upper surface of the PCB is provided with an elastic conductive element and a conductive foil, the dielectric ceramic filter is positioned above the PCB, and the PCB is electrically connected with the dielectric ceramic filter through the elastic conductive element;

the cover plate is positioned on the top of the dielectric ceramic filter and used for pressing the dielectric ceramic filter.

2. The dielectric ceramic filter tuning jig of claim 1, wherein the resilient conductive elements are located at the input and output holes of the PCB and at the ground ring of the PCB.

3. The dielectric ceramic filter tuning jig of claim 1, wherein the conductive foil is located at a microstrip line of the PCB board.

4. The dielectric ceramic filter debugging jig of any one of claims 1 to 3, wherein a positioning member is provided on the PCB for fixing the dielectric ceramic filter, and a height of the positioning member is smaller than a height of the dielectric ceramic filter.

5. The dielectric ceramic filter debugging jig of claim 2 wherein the pad locations of the PCB board are provided with resilient conductive elements.

6. The dielectric ceramic filter debugging jig of claim 1 further comprising a connector, wherein the base is provided with a through hole, and the connector is fixed to the base through the through hole and is fixedly connected to the PCB.

7. The dielectric ceramic filter tuning jig of claim 1, wherein the elastic conductive member is circular or square, and the base and the cover are made of metal.

8. The dielectric ceramic filter tuning jig of claim 1, wherein the cover plate is provided with a connection port for connection with a pneumatic device.

9. The dielectric ceramic filter tuning jig of claim 1, wherein a position where the base contacts the cover plate is provided with a buffer member, and the buffer member has elasticity and is electrically conductive.

10. The dielectric ceramic filter tuning jig of claim 1, wherein the base is provided with positioning pin holes.

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