CN220438381U

CN220438381U - Numerical control electrically tunable filter testing device

Info

Publication number: CN220438381U
Application number: CN202223578594.3U
Authority: CN
Inventors: 王睿; 段丽娜; 李延红
Original assignee: Tianjin Zhenhai Technology Co ltd
Current assignee: Tianjin Zhenhai Technology Co ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2024-02-02
Anticipated expiration: 2032-12-31

Abstract

The utility model discloses a numerical control electrically-tunable filter testing device, which belongs to the technical field of testing devices, and particularly relates to a numerical control electrically-tunable filter testing device. The test board that accessible design is changed different plays the requirement that a casing satisfied multiple wave filter test, makes the device test have the diversity, has solved the mechanical damage that adopts welding or conventional contact mode to cause in the past when numerical control electrically tunable filter test, the pad pollutes, fixed not firm, the area of earthing is insufficient, cause the problem of test production great error easily.

Description

Numerical control electrically tunable filter testing device

Technical Field

The utility model relates to the technical field of testing devices, in particular to a numerical control electrically tunable filter testing device.

Background

The filter is a filter circuit composed of a capacitor, an inductor and a resistor. The filter can effectively filter the frequency points of the specific frequency or the frequencies outside the frequency points in the power line to obtain a power signal of the specific frequency or eliminate the power signal of the specific frequency, and the filter comprises a digital control electrically tunable filter. And the digital controlled electrically tunable filter needs to be tested before being used.

The numerical control electrically tunable filter to be tested adopts a planar bonding pad, and the bonding pad pins are more in number. If the filter is welded on the circuit board for testing according to a conventional detection mode, pollution is caused to a filter bonding pad, and the performance index of the filter is easily damaged in the welding process; another way is to use a conventional point contact type detection method, which is easy to cause a large error to the test due to small contact area and insufficient grounding area. Moreover, the two test modes have low test efficiency and are not suitable for large-scale test.

Disclosure of Invention

The utility model aims to provide a numerical control electrically-tunable filter testing device which is used for solving the problems that the numerical control electrically-tunable filter to be tested, which is proposed in the background technology, adopts a planar bonding pad and the number of bonding pad pins is large. If the filter is welded on the circuit board for testing according to a conventional detection mode, pollution is caused to a filter bonding pad, and the performance index of the filter is easily damaged in the welding process; another way is to use a conventional point contact type detection method, which is easy to cause a large error to the test due to small contact area and insufficient grounding area. And the two test modes have low test efficiency and are not suitable for mass test.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a numerical control electrically-controlled filter testing arrangement, includes casing, test board and installs test pressure handle on the casing, install on the casing and be fixed with the test board, the welding has several test probes on the test board to install the row of inserting of being connected with outside control platform, the welding of test board openly central point puts and has the earth copper foil, the casing lateral wall is provided with the radio frequency connecting wire, the inner core welding of radio frequency connecting wire can be carried out the filter that awaits measuring and fixed and form electrically connected's test probe on corresponding.

Preferably, the shell is a metal shell, and the test board is a metal test board.

Preferably, the shell and the test board are provided with a plurality of mounting holes, and the test board is detachably mounted on the shell through the mounting holes arranged on the test board.

Preferably, the test probe is a gold-plated elastic probe, the outer side of the test probe is welded on the test board, and the inner side of the test probe is suspended.

Preferably, the test press handle is fixedly connected with the shell through the mounting groove, and the front end of the test press handle is fixedly connected with the test press plate through a screw.

Compared with the prior art, the utility model has the beneficial effects that: compared with the traditional testing mode, the testing device for the numerical control electrically-tunable filter has the defects of infirm fixation, low testing efficiency, larger error of testing results and the like, and has the advantages of firm installation, full grounding, high testing efficiency, small error and the like of a product to be tested;

the test board on the casing is replaced to test various size filters. The filters with different sizes can achieve the effect of full and firm contact by adjusting the position of the test pressing handle on the sliding rail. The device meets the requirement of the device on the diversity of the filter test and controls the cost;

the operation of debugging the performance index of the filter can be achieved while testing by replacing the pressing plate arranged on the testing pressing handle. The user can select the operation of debugging or testing the filter according to the requirement.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following detailed description of the embodiments of the present utility model will be given with reference to the accompanying drawings, which are to be understood as merely some embodiments of the present utility model, and from which other drawings can be obtained by those skilled in the art without inventive faculty. Wherein:

FIG. 1 is a schematic view of a housing structure of the present utility model;

FIG. 2 is a schematic diagram of a test plate according to the present utility model;

FIG. 3 is a schematic left side view of the housing of the present utility model;

FIG. 4 is a right side schematic view of the housing of the present utility model;

FIG. 5 is a schematic view of a combination of a housing and a test plate according to the present utility model;

FIG. 6 is a schematic diagram of the overall assembly of the present utility model;

fig. 7 is a schematic diagram of the application principle of the present utility model.

In the figure: 1 casing, 2 test board, 3 test pressure handles, 4 test probes, 5 radio frequency connecting wires, 6 connection inserts row, 7 ground copper foil, 8 mounting holes.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Compared with the traditional testing mode, the testing device for the numerical control electrically-tunable filter has the defects of infirm fixation, low testing efficiency, larger error of testing results and the like, and has the advantages of firm installation, full grounding, high testing efficiency, small error and the like of a product to be tested; the test board on the casing is replaced to test various size filters. The filters with different sizes can achieve the effect of full and firm contact by adjusting the position of the test pressing handle on the sliding rail. The device meets the requirement of the device on the diversity of the filter test and controls the cost; the operation of debugging the performance index of the filter can be achieved while testing by replacing the pressing plate arranged on the testing pressing handle. The user can select the operation of debugging or testing the filter according to the requirement, please refer to fig. 1, 2, 3, 4, 5, 6 and 7, which comprises a housing 1, a test board 2, a test press 3, a test probe 4, a radio frequency connection wire 5, a connection socket 6, a grounding copper foil 7 and a mounting hole 8;

referring to fig. 4 and fig. 5 again, the casing 1 and the test board 2 are mutually formed, specifically, the casing 1 is a metal casing, the test board 2 is a metal test board, the test board 2 is fixedly installed on the casing 1, a plurality of test probes 4 are welded on the test board 2, a power strip 6 connected with an external control platform is installed on the test board 2, a grounded copper foil 7 is welded at the center position of the front surface of the test board 2, a radio frequency connecting wire 5 is arranged on the side wall of the casing 1, and an inner core of the radio frequency connecting wire 5 is welded on a corresponding test probe 4 capable of fixing a filter to be tested and forming electrical connection;

in some embodiments, the casing 1, the test board 2 mounted on the casing 1, and the test press 3 mounted on the casing 1 are combined together, and the front section of the test press 3 is fixedly provided with the test press board. The test board 2 is welded with a plurality of test probes 4, two sides of the shell 1 are respectively fixed with a radio frequency connecting wire 5, the inner core of the radio frequency connecting wire 5 in the shell 1 is welded on the corresponding test probe 4, the test board 2 and the shell 1 are provided with a plurality of mounting holes 8 which are connected and fixed by using screws, or a welding mode can be adopted, the periphery of the test board 2 is designed with a grounding copper foil 7, the test board 2 is welded on the shell 1, the indirect sufficiency of the test board 2 and the shell 1 is ensured, the test pressure handle 3 and the shell 1 are mounted and fixed by using screws, the mounting part of the screws is designed with sliding rails, and the position of the test pressure handle 3 on the shell 1 can be adjusted; meanwhile, the number of gaskets arranged in the screw can be adjusted according to the height of the filter product to be tested so as to ensure that the tested filter is fully crimped, and the test plate 2 arranged on the shell 1 can be designed and replaced according to the use requirement of a technician, so that the digital control electrically-tunable filter products with other sizes can be tested, and the diversity of product testing is realized.

When the filter to be tested is specifically used, firstly, the filter to be tested is mounted at a test position when the filter is prepared for testing, the filter pad is connected with the network analyzer and the external control platform through the elastic test probe 4, the test press handle 3 is pressed down to the bottom when the test is performed, the test press plate at the front end of the test press handle 3 can downwards press the filter to be tested, due to the electric performance characteristics of the filter, the accuracy of a test result can be ensured only when the filter is fully grounded, the test press handle 3 is lifted to the top when the test is finished, the test press plate at the front end of the test press handle 3 is immediately lifted, the upper end and the lower end of the test position of the filter are designed with hollows, the filter can be taken down from the test position, the test press plate at the front end of the test press handle 3 is fixed through screws, the test press plate can be replaced to a debugging press plate according to the use requirements of a technician, and the hollows in the middle part of the debugging press plate are hollowed out. When the debugging pressing plate presses the filter to be tested, the pcb circuit part of the filter is displayed, and a technician can debug the performance of the filter according to index requirements. Thereby realized the variety of this device function, have easy operability, got rid of the problem that traditional test mode is inefficiency, have the product diversity that can test multiple size filter to and can satisfy the function diversity of debugging and test requirement simultaneously. Simple structure, small volume, accurate test and cost saving.

Referring to fig. 4 and 5 again, in order to improve the flexibility of the installation assembly, in particular, the housing 1 and the test board 2 are provided with a plurality of mounting holes 8, and the test board 2 is detachably mounted on the housing 1 through the mounting holes 8 provided thereon.

Referring to fig. 4 and 5 again, for convenience of connection, the test probe 4 is a gold-plated elastic probe, and its outer side is welded to the test board 2 and its inner side is suspended.

Referring to fig. 4 and 5 again, in order to facilitate the matching of the test press handle 3, specifically, the test press handle 3 is fixedly connected with the housing 1 through a mounting groove, and the front end of the test press handle 3 is fixedly connected with a test press plate through a screw.

In addition, the present utility model relates to circuits, electronic components and modules in the prior art, and those skilled in the art can fully implement the present utility model, and needless to say, the protection of the present utility model does not relate to improvement of the internal structure and method.

Although the utility model has been described hereinabove with reference to embodiments, various modifications thereof may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the features of the disclosed embodiments may be combined with each other in any manner so long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification merely for the sake of brevity and resource saving. Therefore, it is intended that the utility model not be limited to the particular embodiments disclosed, but encompasses all technical solutions which fall within the scope of the claims.

Claims

1. The utility model provides a numerical control electrically tunable filter testing arrangement, includes casing (1), test board (2), and installs test press handle (3) on casing (1), its characterized in that: the shell (1) is fixedly provided with a test board (2), a plurality of test probes (4) are welded on the test board (2), a power strip (6) connected with an external control platform is arranged on the test board, the center position of the front surface of the test board (2) is welded with a grounding copper foil (7), the side wall of the shell (1) is provided with a radio frequency connecting wire (5), and an inner core of the radio frequency connecting wire (5) is welded on a corresponding test probe (4) which can fix a filter to be tested and form electric connection.

2. The digitally controlled electrically tunable filter testing device of claim 1, wherein: the shell (1) is a metal shell, and the test board (2) is a metal test board.

3. The digitally controlled electrically tunable filter testing device of claim 2, wherein: the shell (1) and the test board (2) are provided with a plurality of mounting holes (8), and the test board (2) is detachably mounted on the shell (1) through the mounting holes (8) arranged on the test board.

4. A digitally controlled electrically tunable filter testing device according to claim 3, wherein: the test probe (4) is a gold-plated elastic probe, the outer side of the test probe is welded on the test board (2), and the inner side of the test probe is suspended.

5. The device for testing a digitally controlled electrically tunable filter according to claim 4, wherein: the testing press handle (3) is fixedly connected with the shell (1) through the mounting groove, and the front end of the testing press handle (3) is fixedly connected with a testing press plate through a screw.