A simple film filter test fixture

Abstract

The utility model provides a simple and easy film filter test fixture, including test base, still include, test groove is established at the top of test base, is used for placing film filter main part, wiring groove, wiring groove symmetry establishes at the center of both ends of test base, any wiring groove inner wall is installed with connecting wire, any connecting wire is externally extended to the running through wiring groove, and the extension end of connecting wire is fixedly arranged with the connecting port, and a plurality of gold wires are arranged in any connecting wire, translation component, translation component symmetry is installed at the top of test base, shear type connecting rod subassembly, shear type connecting rod subassembly symmetry is installed in the mobile end of translation component, is used for to the two side walls of different model film filter's multi -point abutment, end limit component. The utility model is applicable to the clamping of a plurality of size filter, and the test efficiency is high, can carry out multi -point abutment to filter side wall, and the stability of clamping is high.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and more specifically, to a simple thin-film filter test fixture. Background Technology

[0002] A filter is a filtering circuit composed of capacitors, inductors, and resistors. A filter can effectively filter out a specific frequency point or frequencies other than that in a power line to obtain a power signal of a specific frequency, or to eliminate a power signal after a specific frequency. Thin-film microstrip filters are one type of filter.

[0003] A search revealed that Chinese patent application number CN202322363459.5 discloses "A simple thin-film filter test fixture, which relates to the technical field of filters. This utility model includes a test base with a test groove at its upper end. A thin-film filter body is disposed on the inner bottom wall of the test groove. Suction cups are provided on both sides of the thin-film filter body, and sealing gaskets are fixedly connected to the adjacent sides of the two suction cups. Tension tubes are fixedly connected to one side wall of each of the two suction cups, and the two tension tubes pass through both sides of the test base. Connection ports are provided on both sides of the test base, and connecting wires are fixedly connected to the adjacent sides of the two connection ports. The two connecting wires pass through the two side walls of the test groove, and multiple gold wires are disposed within each connecting wire. The suction cups, sealing gaskets, tension tubes, and clamping mechanism work together to clamp both sides of the thin-film filter body using the suction cups, and also facilitate the removal of the thin-film filter body." However, the following drawbacks still exist: (1) It can only be applied to filters of a specific size. When it is necessary to test products of multiple sizes, the fixture needs to be changed, resulting in low testing efficiency. (2) The filter sidewall cannot be abutted at multiple points, resulting in poor clamping stability.

[0004] Therefore, we have made improvements to this by proposing a simple thin-film filter test fixture. Utility Model Content

[0005] The purpose of this invention is to address the problems of existing filters that can only be applied to filters of specific sizes, requiring fixture changes when testing products of multiple sizes, resulting in low testing efficiency; and the inability to make multiple points of contact with the filter sidewalls, leading to poor clamping stability.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution: A simplified thin-film filter test fixture is provided to address the aforementioned issues.

[0007] The present invention is as follows: Including the test base, and also, A test slot, which is formed on the top of the test base, is used to place the thin-film filter body; The wiring slots are symmetrically opened at the center of both ends of the test base. A connecting wire is installed on the inner wall of any of the wiring slots. The connecting wire extends outward through the wiring slot. A connection port is fixedly provided at the extended end of the connecting wire. Multiple gold wires are provided inside any of the connecting wires. Translation components, which are symmetrically mounted on top of the test base; A scissor linkage assembly is symmetrically installed on the moving end of the translation assembly and is used to make multi-point contact with the two side walls of different types of thin film filters. An end-stop assembly is symmetrically and uniformly installed on both ends of the test tank wall to abut the ends of different types of thin-film filters.

[0008] As a preferred technical solution of this utility model, any one of the translation components includes a guide rail fixedly installed on the top of the test base and symmetrically distributed, a slide block slidably connected to the outer wall of the guide rail, an inverted U-shaped plate fixedly connected to the top of the two slide blocks, a limiting block fixedly installed on the vertical section of the inverted U-shaped plate and symmetrically distributed, a fixing rod fixedly installed at the center of the limiting block, and a U-shaped connector fixedly installed at the end of the fixing rod away from the limiting block.

[0009] As a preferred technical solution of this utility model, the scissor linkage assembly includes multiple sets of cross-hinged X-shaped linkages, the centers of adjacent X-shaped linkages are connected by a hinge shaft, and the X-shaped linkages at both ends are movably connected to U-shaped connectors respectively; a rubber pad is fixedly provided at one end of the X-shaped linkage near the end limiting component.

[0010] As a preferred technical solution of this utility model, any one of the end limiting components includes a telescopic guide rod fixedly installed on the wall of the test tank, an arc-shaped flexible plate fixedly installed on the telescopic end of the telescopic guide rod, and a spring fixedly installed between the wall of the test tank and the arc-shaped flexible plate, wherein the spring is sleeved on the outside of the telescopic guide rod.

[0011] As a preferred technical solution of this utility model, the test base has sliding grooves parallel to the guide rail on both side walls, and the end of the fixing rod extends into the sliding groove and slides along it.

[0012] As a preferred technical solution of this utility model, the connecting wire is in direct contact with the electrode of the filter through its internal gold wire. When the thin film filter is placed in the test tank, the gold wire forms an electrical connection with its electrode.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: In the solution of this utility model: 1. Width adjustment is achieved by driving the scissor linkage through the set translation component, and length self-adaptation is achieved by combining the elastic extension and retraction of the end limit component. This enables stable clamping of filters of different sizes, solving the problem that the existing technology can only be applied to filters of specific sizes. When testing products of multiple sizes, it is necessary to change the fixture, resulting in low testing efficiency. 2. By setting rubber pads at the ends of multiple sets of X-shaped connecting rods, flexible multi-point contact is achieved, solving the problem of poor clamping stability in the prior art, which cannot provide multi-point contact with the sidewall of the filter. Attached Figure Description

[0014] Figure 1 A three-dimensional structural schematic diagram of the simplified thin-film filter test fixture provided by this utility model; Figure 2 An exploded view of the simplified thin-film filter test fixture provided by this utility model; Figure 3 A schematic diagram of the translation component and scissor linkage component of the simplified thin-film filter test fixture provided by this utility model; Figure 4 This invention provides a simple thin-film filter test fixture. Figure 3 Enlarged structural diagram at point A in the diagram; Figure 5 A schematic diagram of the translation component structure of the simplified thin-film filter test fixture provided by this utility model.

[0015] The image shows: 1. Test base; 2. Test slot; 3. Wiring slot; 4. Connecting wire; 41. Connecting port; 5. Translation assembly; 6. Scissor linkage assembly; 7. End limiting assembly; 501. Guide rail; 502. Slide; 503. Inverted U-shaped plate; 504. Limiting block; 505. Fixing rod; 506. U-shaped connector; 601. X-shaped linkage; 602. Rubber pad; 701. Telescopic guide rod; 702. Arc-shaped flexible plate; 703. Spring; 8. Slide groove. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0017] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0018] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0020] like Figure 1-5 As shown, this embodiment proposes a simple thin-film filter test fixture, including a test base 1, and further comprising: Test slot 2 is located on top of test base 1 and is used to place the thin film filter body. Wiring groove 3 is symmetrically opened at the center of both ends of the test base 1. A connecting wire 4 is installed on the inner wall of any wiring groove 3. The connecting wire 4 extends outward through the wiring groove 3. A connection port 41 is fixedly provided at the extended end of the connecting wire 4. Multiple gold wires are provided inside the connecting wire 4. Translation component 5 is symmetrically mounted on top of test base 1; The scissor linkage assembly 6 is symmetrically installed on the moving end of the translation assembly 5 and is used to make multi-point contact with the two side walls of different types of thin film filters. End limiting components 7 are symmetrically and evenly installed on the two end walls of the test tank 2 to abut the two ends of different types of thin film filters.

[0021] like Figure 3 , Figure 4 and Figure 5 As shown, in a preferred embodiment, based on the above method, any set of translation components 5 further includes a guide rail 501 fixedly installed on the top of the test base 1 and symmetrically distributed, a slide block 502 slidably connected to the outer wall of the guide rail 501, an inverted U-shaped plate 503 fixedly connected to the top of the two sets of slide blocks 502, a limiting block 504 fixedly installed on the vertical section of the inverted U-shaped plate 503 and symmetrically distributed, a fixing rod 505 fixedly installed at the center of the limiting block 504, and a U-shaped connector 506 fixedly installed at the end of the fixing rod 505 away from the limiting block 504. The slide block 502 drives the inverted U-shaped plate 503, the limiting block 504 and the fixing rod 505 to move synchronously.

[0022] like Figure 3 and Figure 4 As shown, in a preferred embodiment, based on the above method, the scissor linkage assembly 6 further includes multiple sets of cross-hinged X-shaped linkages 601, the centers of adjacent X-shaped linkages 601 are connected by a hinge shaft, and the X-shaped linkages 601 at both ends are movably connected to the U-shaped connectors 506 respectively; a rubber pad 602 is fixedly provided at one end of the X-shaped linkage 601 near the end limiting assembly 7, which can uniformly clamp both sides of the filter with different widths.

[0023] like Figure 1 and Figure 2 As shown, in a preferred embodiment, based on the above method, any set of end limiting components 7 further includes a telescopic guide rod 701 fixedly installed on the wall of the test groove 2, an arc-shaped flexible plate 702 fixedly installed on the telescopic end of the telescopic guide rod 701, and a spring 703 fixedly installed between the wall of the test groove 2 and the arc-shaped flexible plate 702. The spring 703 is sleeved on the outside of the telescopic guide rod 701 and is adapted to clamp the two ends of thin film filters of different lengths.

[0024] like Figure 1 and Figure 2 As shown, in a preferred embodiment, based on the above method, the test base 1 has grooves 8 parallel to the guide rail 501 on both side walls, and the end of the fixing rod 505 extends into the groove 8 and slides along it, so that the fixing rod 505 is limited by the groove 8.

[0025] like Figure 1 and Figure 2 As shown, in a preferred embodiment, based on the above method, the connecting wire 4 is further connected to the filter electrode through its internal gold wire. When the thin film filter is placed in the test tank 2, the gold wire forms an electrical connection with its electrode. The test signal is input through the connecting port 41 and transmitted to the filter electrode through the gold wire to complete the filtering performance test.

[0026] Specifically, when this simple thin-film filter test fixture is in operation: first, the thin-film filter to be tested is placed horizontally in the test slot 2, so that it is roughly centered. The two ends of the thin-film filter are pressed against the arc-shaped flexible plate 702 of the end limiting component 7, the spring 703 is compressed, and the telescopic guide rod 701 is retracted to form an elastic clamping force, thereby adapting to clamping the two ends of thin-film filters of different lengths. The guide rail 501 is a linear guide rail. The slide block 502 slides horizontally along the guide rail 501. The slide block 502 drives the inverted U-shaped plate 503, the limiting block 504 and the fixing rod 505 to move synchronously. The U-shaped connector 506 at the end of the fixing rod 505 pushes the X-shaped connecting rod 601 of the scissor linkage assembly 6 to unfold or retract. The slide block 502 is locked by the locking mechanism, so as to clamp the two sides of the filter of different widths evenly. Meanwhile, the rubber pad 602 at the end of the X-shaped connecting rod 601 abuts against the sidewall of the filter from multiple points on both sides; The gold wire at the extension end of the connecting wire 4 directly contacts the filter electrode to form a stable electrical path. It is connected to the test equipment through the connection port 41. The test signal is input through the connection port 41 and transmitted to the filter electrode through the gold wire to complete the filter performance test. By moving the slide block 502 of the translation component 5, the scissor linkage component 6 continues to unfold, the rubber pad 602 disengages from the filter sidewall, and the thin film filter is taken out upwards. At the same time, the spring 703 of the end limiting component 7 rebounds, pushing the arc-shaped flexible plate 702 to reset.

[0027] All technical features in this embodiment can be freely combined according to actual needs.

[0028] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A simple thin-film filter test fixture, comprising a test base (1), characterized in that, It also includes, Test slot (2), the test slot (2) is opened on the top of the test base (1) and is used to place the thin film filter body; Wiring groove (3), the wiring groove (3) is symmetrically opened at the center of both ends of the test base (1), any wiring groove (3) has a connecting wire (4) installed on the inner wall, any connecting wire (4) extends outward through the wiring groove (3), the extension end of the connecting wire (4) is fixedly provided with a connection port (41), and any connecting wire (4) has multiple gold wires inside. Translation component (5), which is symmetrically mounted on top of test base (1); Scissor linkage assembly (6), which is symmetrically installed on the moving end of translation assembly (5) for multi-point contact with the two side walls of different types of thin film filters; End limiting components (7) are symmetrically and uniformly installed on the two end walls of the test groove (2) for abutting the two ends of different types of thin film filters.

2. The simplified thin-film filter test fixture according to claim 1, characterized in that, Any one of the translation components (5) includes a guide rail (501) fixedly installed on the top of the test base (1) and symmetrically distributed, a slide block (502) slidably connected to the outer wall of the guide rail (501), an inverted U-shaped plate (503) fixedly connected to the top of the two slide blocks (502), a limiting block (504) fixedly installed on the vertical section of the inverted U-shaped plate (503) and symmetrically distributed, a fixing rod (505) fixedly installed at the center of the limiting block (504), and a U-shaped connector (506) fixedly installed at the end of the fixing rod (505) away from the limiting block (504).

3. A simplified thin-film filter test fixture according to claim 2, characterized in that, The scissor linkage assembly (6) includes multiple sets of cross-hinged X-shaped linkages (601), the centers of adjacent X-shaped linkages (601) are connected by a hinge shaft, and the X-shaped linkages (601) at both ends are movably connected to U-shaped connectors (506); a rubber pad (602) is fixedly provided at one end of the X-shaped linkage (601) near the end limiting assembly (7).

4. A simple thin-film filter test fixture according to claim 1, characterized in that, Any set of the end limiting components (7) includes a telescopic guide rod (701) fixedly installed on the wall of the test groove (2), an arc-shaped flexible plate (702) fixedly installed on the telescopic end of the telescopic guide rod (701), and a spring (703) fixedly installed between the wall of the test groove (2) and the arc-shaped flexible plate (702), and the spring (703) is sleeved on the outside of the telescopic guide rod (701).

5. A simplified thin-film filter test fixture according to claim 2, characterized in that, The test base (1) has grooves (8) on both sides parallel to the guide rail (501), and the end of the fixing rod (505) extends into the groove (8) and slides along it.

6. A simplified thin-film filter test fixture according to claim 1, characterized in that, The connecting wire (4) is in direct contact with the filter electrode through its internal gold wire. When the thin film filter is placed in the test tank (2), the gold wire forms an electrical connection with its electrode.

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