Test tool for surface-mounted phase shifter

Abstract

The utility model discloses a test tool for a surface-mounted phase shifter, which comprises an outer shell, a spring mounting cavity, a sliding block cavity, a strip-shaped cavity, a sliding block assembly and a sliding block cover plate, wherein the spring mounting cavity, the sliding block cavity and the strip-shaped cavity are sequentially arranged in the outer shell and are communicated with one another; the sliding block assembly is sleeved in the sliding block cavity in a sliding manner; the sliding block cover plate covers the spring mounting cavity and the sliding block cavity and is fixedly connected with the outer shell; the radio frequency connectors are arranged on the side edge and the back of the outer shell and extend to the joint of the sliding block cavity and the strip-shaped cavity, one end of the spring is arranged in the spring mounting cavity, and the other end of the spring is extruded on the sliding block assembly; a plurality of strip-shaped cavities are arranged; the sliding block assembly penetrates through the sliding block cover plate and is extruded on the printed board cavity; and the radio frequency connector is in extrusion contact with the printed board. According to the scheme, the phase shifter testing device has the advantages of being simple in structure, convenient to install, efficient and reliable in testing and the like, and has high practical value and popularization value in the technical field of phase shifter testing.

Description

Technical Field

[0001] This utility model relates to the field of phase shifter testing technology, and in particular to a testing fixture for surface-mount phase shifters. Background Technology

[0002] With the miniaturization and integration of RF modules, surface-mount (SMD) modules have emerged. Compared to traditional coaxial modules, this phase shifter module does not have an RF coaxial connector and is directly embedded into the system and integrated with the microstrip PCB. However, testing this type of module is more difficult than testing coaxial modules. Conventional testing requires soldering onto the PCB for testing; the accuracy of S-parameter testing of surface-mount phase shifters is affected, and its testing speed is slow, resulting in low production efficiency.

[0003] Currently, existing technology includes a Chinese utility model patent with publication number CN207965000U, entitled "A Test Fixture for an MMIC Phase Shifter," which includes a clamping mechanism, a base, and a microstrip board. The base is a cuboid plate with a rectangular cavity on its upper surface. Fourteen insulators are distributed around the rectangular cavity, with their outlet ports extending outwards. This technology uses a clamping mechanism with a rotating hook plate, a threaded screw, a rotating handle, a spring, a plastic clamping block, and a copper bracket. The rotating hook plate is fastened to a second round shaft, and then the threaded screw and rotating handle are rotated for fixation. This operation is complex and cannot reliably determine the connection of the microstrip board. If the threaded screw and rotating handle are not rotated fully, the contact between the microstrip board and the RF connector is unreliable; if they are rotated excessively, the microstrip board is easily damaged.

[0004] Therefore, there is an urgent need to propose a test fixture for surface-mount phase shifters that is simple in structure, easy to install, and highly efficient and reliable in testing. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this utility model is to provide a testing fixture for surface-mount phase shifters. The technical solution adopted by this utility model is as follows:

[0006] A test fixture for a surface-mount phase shifter clamps a printed circuit board cavity and a printed circuit board. It includes an outer shell, a spring mounting cavity, a slider cavity, and a strip cavity sequentially formed and interconnected within the outer shell, a slider assembly slidably fitted within the slider cavity, a slider cover plate covering the spring mounting cavity and the slider cavity and fixedly connected to the outer shell, several RF connectors disposed on the sides and back of the outer shell and extending to the junction of the slider cavity and the strip cavity, and a spring with one end disposed within the spring mounting cavity and the other end pressed against the slider assembly. Several strip cavities are provided. The slider assembly passes through the slider cover plate and is pressed against the printed circuit board cavity. The RF connectors are in contact with the printed circuit board.

[0007] Furthermore, a through hole for a toggle block is provided on the slider cover plate; the slider assembly includes a slider that is slidably sleeved in the slider cavity, and a toggle block that is disposed on the slider and passes through the through hole for the toggle block.

[0008] Furthermore, a guide rod is provided on the slider and on the side near the spring; a guide rod through hole is provided on the outer shell; the guide rod is sleeved inside the spring and passes through the guide rod through hole.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] (1) This utility model sets up a spring mounting cavity, a slider cavity, a guide rod through hole, a spring, a slider, a toggle block, a guide rod, a slider cover plate, and a toggle block through hole. Under the toggle action of the toggle block, the slider slides in the slider cavity and provides the installation space for the printed circuit board cavity and the printed circuit board. Then, the spring is used for reset and compression to ensure reliable electrical contact between the printed circuit board and the RF connector. Its installation is convenient and efficient.

[0011] (2) This utility model sets up several strip cavities, and the radio frequency connector is set at the junction of the slider cavity and the strip cavity. Its advantages are: on the one hand, it can directly and reliably determine whether the electrical connection between the printed circuit board and the radio frequency connector is reliable; on the other hand, the strip cavity can also serve as a heat dissipation channel during the test, ensuring the reliability of the test.

[0012] In summary, this utility model has the advantages of simple structure, convenient installation, and efficient and reliable testing, and has high practical and promotional value in the field of phase shifter testing technology. Attached Figure Description

[0013] 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.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of this utility model after removing the slider cover plate.

[0016] Figure 3 This is a schematic diagram of the outer shell of this utility model.

[0017] In the above figures, the component names corresponding to the reference numerals are as follows:

[0018] 1. Outer shell; 2. Slider cover plate; 3. Printed circuit board cavity; 4. Printed circuit board; 5. RF connector; 6. Slider assembly; 7. Spring; 11. Spring mounting cavity; 12. Slider cavity; 13. Strip cavity; 14. Guide rod through hole; 21. Actuating block through hole; 61. Slider; 62. Actuating block; 63. Guide rod. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] like Figures 1 to 3As shown, this embodiment provides a test fixture for a surface-mount phase shifter, which clamps the printed circuit board cavity 3 and the printed circuit board 4, and performs electrical tests on the printed circuit board 4. The test fixture for the surface-mount phase shifter includes a housing 1, a slider cover 2, an RF connector 5, a slider assembly 6, and a spring 7. The slider assembly 6 is disposed within the housing 1 and extends through the slider cover 2. The slider cover 2 covers the housing 1. The RF connector 5 is disposed on the side and back of the housing 1 and extends to the junction of the slider cavity 12 and the strip cavity 13.

[0025] The housing 1 contains a spring mounting cavity 11, a slider cavity 12, and a strip cavity 13 that are sequentially connected to each other. A guide rod through hole 14 communicating with the spring mounting cavity 11 is also provided on the housing 1. One end of the spring 7 is disposed in the spring mounting cavity 11, and the other end is pressed against the slider 61.

[0026] Additionally, a through hole 21 for an actuating block is provided on the slider cover plate 2. The slider assembly 6 includes a slider 61 slidably sleeved in the slider cavity 12, an actuating block 62 disposed on the slider 61 and passing through the through hole 21, and a guide rod 63 disposed on the slider 61 and near the spring 7. The guide rod 63 is sleeved in the spring 7 and passes through the guide rod through hole 14.

[0027] In this embodiment, three strip cavities 13 are provided, and three radio frequency connectors 5 correspond one-to-one with the strip cavities 13, so as to facilitate observation of whether the printed circuit board 4 and the radio frequency connectors 5 are reliably connected, and to provide a heat dissipation channel for the printed circuit board 4 during the test.

[0028] 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 test tool for surface mount phase shifter, which clamps a printed board cavity (3) and a printed board (4), characterized in that, The device includes an outer shell (1), a spring mounting cavity (11), a slider cavity (12), and a strip cavity (13) sequentially opened inside the outer shell (1) and interconnected with each other, a slider assembly (6) slidably sleeved in the slider cavity (12), a slider cover plate (2) covering the spring mounting cavity (11) and the slider cavity (12) and fixedly connected to the outer shell (1), several radio frequency connectors (5) disposed on the side and back of the outer shell (1) and extending to the junction of the slider cavity (12) and the strip cavity (13), and a spring (7) with one end disposed in the spring mounting cavity (11) and the other end pressed against the slider assembly (6); several strip cavities (13) are provided; the slider assembly (6) is disposed through the slider cover plate (2) and pressed against the printed circuit board cavity (3); the radio frequency connectors (5) are pressed against the printed circuit board (4).

2. The test fixture for a surface mount phase shifter of claim 1, wherein, The slider cover plate (2) has a through hole (21) for a toggle block; the slider assembly (6) includes a slider (61) that is slidably sleeved in the slider cavity (12), and a toggle block (62) that is disposed on the slider (61) and passes through the through hole (21).

3. The test fixture of claim 2, wherein, A guide rod (63) is provided on the slider (61) and on the side close to the spring (7); a guide rod through hole (14) is provided on the outer shell (1); the guide rod (63) is sleeved inside the spring (7) and passes through the guide rod through hole (14).

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