Downward-pressing contact type radio frequency test fixture

Abstract

The utility model discloses a press-down contact type radio frequency test fixture, which comprises a lower mounting bottom plate, a test piece supporting table, a vertical press-down mechanism and a micro rectangular electric connector, wherein the test piece supporting table and the vertical press-down mechanism are fixed on the lower mounting bottom plate; the micro rectangular electric connector is arranged on the lower mounting bottom plate and is electrically connected with the test piece supporting table; the test piece to be tested is arranged on the test piece supporting table and is electrically connected with the micro rectangular electric connector; and the vertical pressing mechanism is extruded on the upper surface of the to-be-tested piece. According to the scheme, the clamping device has the advantages of being simple in structure, reliable in clamping and the like, and has very high practical value and popularization value in the technical field of radio frequency testing.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency testing technology, and in particular to a pressure-contact type radio frequency test fixture. Background Technology

[0002] Radio frequency (RF) testing refers to the detection and analysis of various RF performance parameters to evaluate their application effects in fields such as optics and microwaves. This technology primarily focuses on conducting RF tests on voltage-controlled oscillators (VCOs). Currently, there are no suitable test fixtures available; testing can only be performed by soldering the device onto a PCB board, resulting in complex soldering connections and low testing efficiency.

[0003] Therefore, there is an urgent need to propose a simple and reliable pressure-contact RF test fixture. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide a pressure-contact type RF test fixture. The technical solution adopted by this utility model is as follows:

[0005] A pressure-contact type RF test fixture for clamping a test piece includes a lower mounting base plate, a test piece support platform fixed on the lower mounting base plate and a vertical pressure mechanism, and a micro-rectangular electrical connector disposed on the lower mounting base plate and electrically connected to the test piece support platform; the test piece is disposed on the test piece support platform and electrically connected to the micro-rectangular electrical connector; the vertical pressure mechanism presses against the upper surface of the test piece.

[0006] The test piece support platform is fixed to a cavity on the lower mounting base plate. An adapter block, PCB board, and limiting frame are mounted on the cavity. A high-frequency RF coaxial connector is mounted on the adapter block and electrically connected to the PCB board. A test piece mounting slot is formed within the limiting frame. Several probes are mounted on the cavity and placed within the test piece mounting slot. The probes are electrically connected to the test piece and the micro-rectangular electrical connector. The high-frequency RF coaxial connector is electrically connected to the test piece.

[0007] Furthermore, a pressure block is provided on the cavity; the pressure block is pressed onto the PCB board.

[0008] Furthermore, an electrical connection groove is provided on the lower mounting base plate; a lower base plate cover plate covers the bottom of the electrical connection groove.

[0009] Furthermore, the vertical pressing mechanism includes a column fixed to the lower mounting base plate, a crank fixing seat fixed to the top of the column, a crank assembly axially connected to the crank fixing seat, a guide rail fixed to the column in the longitudinal direction, a slider slidably sleeved on the guide rail, a pressure block fixed to the slider, a crank arm connected between the crank assembly and the pressure block by a rotating shaft, and a pressure block fixed to the bottom of the pressure block; the pressure block presses onto the test piece.

[0010] Furthermore, the pressure seat stroke block is L-shaped.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] (1) This utility model provides a test piece support platform with a limiting frame and a test piece mounting slot to facilitate the placement of the test piece. In addition, this utility model ensures reliable electrical connection between the high-frequency radio frequency coaxial connector and the test piece by providing an adapter block, a high-frequency radio frequency coaxial connector, a PCB board, and a pressure block.

[0013] (2) The present invention has a micro rectangular electrical connector installed on the bottom mounting plate and is electrically connected to the probe through an electrical connection groove, so as to facilitate the electrical connection with the test piece.

[0014] (3) By setting up a vertical pressing mechanism, the present invention operates the crank assembly and drives the pressure block and the pressure block to move along the guide rail direction, ensuring that the pressure block is reliably pressed on the test piece.

[0015] In summary, this utility model has the advantages of simple structure and reliable clamping, and has high practical and promotional value in the field of radio frequency testing technology. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope of protection. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the vertical pressing mechanism in this utility model.

[0019] Figure 3 This is a structural schematic diagram of the test piece support platform at the first angle in this utility model.

[0020] Figure 4 This is a structural schematic diagram of the second angle of the test piece support platform in this utility model.

[0021] Figure 5 This is a schematic diagram of the blasting process of this utility model.

[0022] In the above figures, the component names corresponding to the reference numerals are as follows:

[0023] 1. Lower mounting base plate; 2. Test piece support platform; 3. Vertical pressing mechanism; 4. Micro rectangular electrical connector; 5. Test piece; 11. Electrical connection slot; 12. Lower base plate cover; 21. Cavity; 22. Adapter block; 23. High-frequency RF coaxial connector; 24. PCB board; 25. Pressing block; 26. Limiting frame; 27. Probe; 261. Test piece mounting slot; 31. Column; 32. Crank holder; 33. Guide rail; 34. Slider; 35. Pressing block stroke block; 36. Crank assembly; 37. Crank arm; 38. Pressing block. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this application clearer, the present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of this utility model include, but are not limited to, the following embodiments. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0025] Example

[0026] In this embodiment, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0027] The terms "first" and "second," etc., used in the specification and claims of this embodiment are used to distinguish different objects, not to describe a specific order of objects. For example, "first target object" and "second target object," etc., are used to distinguish different target objects, not to describe a specific order of target objects.

[0028] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0029] In the description of the embodiments in this application, unless otherwise stated, "multiple" means two or more. For example, multiple processing units means two or more processing units; multiple systems means two or more systems.

[0030] like Figures 1 to 5 As shown, this embodiment provides a pressure-contact type RF test fixture that clamps the test piece 5 for quick installation and replacement. In this embodiment, the pressure-contact type RF test fixture includes a lower mounting base plate 1, a test piece support platform 2 fixed on the lower mounting base plate 1, and a vertical pressure mechanism 3. A micro-rectangular electrical connector 4 is mounted on the lower mounting base plate 1 and electrically connected to the test piece support platform 2. A high-frequency RF coaxial connector 23 is provided on the test piece support platform 2. The high-frequency RF coaxial connector 23 and the micro-rectangular electrical connector 4 are electrically connected to the test piece 5. The high-frequency RF coaxial connector is externally connected to a vector network analyzer, and the micro-rectangular electrical connector is externally connected to a power supply. Additionally, an electrical connection slot 11 is formed on the lower mounting base plate 1, and a lower base plate cover plate 12 is fitted over the bottom of the electrical connection slot 11. The electrical connection wire of the micro-rectangular electrical connector 4 passes through the electrical connection slot 11 and connects to the probe 27.

[0031] In this embodiment, a test piece support platform 2 provides mounting support for the test piece 5. Here, the test piece support platform 2 is fixed to a cavity 21 on a lower mounting base plate 1. The cavity 21 includes an adapter block 22, a PCB board 24, and a limiting frame 26. A high-frequency RF coaxial connector 23, electrically connected to the PCB board 24 and mounted on the adapter block 22, a test piece mounting slot 261 formed within the limiting frame 26, several probes 27 mounted on the cavity 21 and placed within the test piece mounting slot 261, and a pressure block 25 mounted on the cavity 21 and pressed against the side of the PCB board 24. Here, the probes 27 are electrically connected to the test piece 5 and the micro-rectangular electrical connector 4, and the high-frequency RF coaxial connector 23 is electrically connected to the test piece 5.

[0032] In addition, to ensure reliable electrical contact between the test piece 5 and the probe 27 and PCB board 24, the vertical pressing mechanism 3 includes a column 31 fixed on the lower mounting base plate 1, a crank fixing seat 32 fixed on the top of the column 31, a crank assembly 36 axially connected to the crank fixing seat 32, a guide rail 33 fixed longitudinally on the column 31, a slider 34 slidably sleeved on the guide rail 33, a pressure block 35 fixed on the slider 34, a crank arm 37 connected between the crank assembly 36 and the pressure block 35 by a rotating shaft, and a pressure block 38 fixed to the bottom of the pressure block 35. In this embodiment, by moving the crank assembly 36, the slider 34, the pressure block 35, and the pressure block 38 slide along the guide rail 33, and the pressure block 38 presses against the test piece 5, thus enabling electrical testing of the test piece 5.

[0033] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any changes made based on the design principles of this utility model, or any non-creative changes made on this basis, shall fall within the scope of protection of this utility model.

Claims

1. A pressure-contact type radio frequency test fixture for clamping the test piece (5), characterized in that, The device includes a lower mounting base plate (1), a test piece support platform (2) fixed on the lower mounting base plate (1), and a vertical pressing mechanism (3), and a micro rectangular electrical connector (4) disposed on the lower mounting base plate (1) and electrically connected to the test piece support platform (2); the test piece (5) is disposed on the test piece support platform (2) and electrically connected to the micro rectangular electrical connector (4); the vertical pressing mechanism (3) presses against the upper surface of the test piece (5); The test piece support platform (2) is fixed on the cavity (21) on the lower mounting base plate (1). The cavity (21) has an adapter block (22), a PCB board (24) and a limiting frame (26). The adapter block (22) is electrically connected to the PCB board (24). The limiting frame (261) is opened in the limiting frame (26). The cavity (21) has several probes (27) placed in the test piece mounting slot (261). The probes (27) are electrically connected to the test piece (5) and the micro rectangular electrical connector (4). The high-frequency radio frequency coaxial connector (23) is electrically connected to the test piece (5).

2. The pressure-contact type RF test fixture according to claim 1, characterized in that, A pressure block (25) is provided on the cavity (21); the pressure block (25) presses against the PCB board (24).

3. The pressure-contact type RF test fixture according to claim 1, characterized in that, An electrical connection groove (11) is provided on the lower mounting base plate (1); a lower base plate cover plate (12) is closed at the bottom of the electrical connection groove (11).

4. A pressure-contact type RF test fixture according to claim 1, 2, or 3, characterized in that, The vertical pressing mechanism (3) includes a column (31) fixed on the lower mounting base plate (1), a crank fixing seat (32) fixed on the top of the column (31), a crank assembly (36) axially connected to the crank fixing seat (32), a guide rail (33) fixed on the column (31) in the longitudinal direction, a slider (34) slidably sleeved on the guide rail (33), a pressure block (35) fixed on the slider (34), a crank arm (37) connected between the crank assembly (36) and the pressure block (35) by a rotating shaft, and a pressure block (38) fixed at the bottom of the pressure block (35); the pressure block (38) presses on the test piece (5).

5. A pressure-contact type RF test fixture according to claim 4, characterized in that, The pressure seat stroke block (35) is L-shaped.

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