Annular isolator test fixture
By designing a ring isolator test fixture, and utilizing the squeezing and vertical pressing mechanism between the movable and fixed cavities, the problem of low testing efficiency of ring isolators is solved, reliable clamping and electrical connection are achieved, and testing efficiency is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU GUOQIANG YUXING ELECTRONIC TECH CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-28
AI Technical Summary
Existing technologies for ring isolators have low testing efficiency and are complex to weld and disassemble, making it difficult to achieve efficient and reliable testing.
A ring isolator test fixture was designed, including a movable cavity, a fixed cavity, a base plate, and a test connector. Reliable clamping and electrical connection are achieved through the squeezing and vertical pressing mechanism between the movable and fixed cavities. Combined with a guiding mechanism and a driving mechanism, the testing process is simplified.
It achieves reliable clamping and electrical connection of the ring isolator, improves testing efficiency, simplifies the operation process, and has the advantages of simple structure and high testing efficiency.
Smart Images
Figure CN224176582U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ring isolator testing technology, and in particular to a ring isolator testing fixture. Background Technology
[0002] A ring isolator is a microwave ferrite device based on the circulator principle, primarily used to control the unidirectional transmission of electromagnetic waves, and widely applied in radio frequency and microwave communication systems. The main performance parameters of a ring isolator include frequency range, insertion loss, reverse isolation, and standing wave ratio (VSWR). These parameters need to be tested before shipment. Currently, existing ring isolator testing involves soldering the ring isolator onto a test substrate, which only allows for sampling inspection, and the soldering and disassembly processes are complex, resulting in extremely low testing efficiency.
[0003] Therefore, there is an urgent need to propose a ring isolator test fixture that is simple in structure and highly efficient and reliable in testing. Utility Model Content
[0004] To address the above problems, the purpose of this utility model is to provide a ring isolator test fixture. The technical solution adopted by this utility model is as follows:
[0005] A ring isolator test fixture for clamping a ring isolator to be tested includes a first mounting base plate, a fixed cavity and a rear-push extrusion drive mechanism disposed on the first mounting base plate, a first movable cavity extrusion guide mechanism and a second movable cavity extrusion guide mechanism disposed on the first mounting base plate and positioned between the fixed cavity and the rear-push extrusion drive mechanism, a first connecting plate sleeved on the first movable cavity extrusion guide mechanism and the second movable cavity extrusion guide mechanism and connected to the rear-push extrusion drive mechanism, a movable cavity disposed at the front end of the first movable cavity extrusion guide mechanism and the second movable cavity extrusion guide mechanism and positioned opposite to the fixed cavity, and a vertical pressing mechanism disposed on the first mounting base plate and positioned above the fixed cavity and the movable cavity; the rear-push extrusion drive mechanism pushes the movable cavity closer to the fixed cavity; the ring isolator to be tested is placed in the fixed cavity; the vertical pressing mechanism presses down on the ring isolator to be tested.
[0006] Furthermore, a first substrate is disposed within the movable cavity; a first test connector electrically connected to the first substrate is disposed on the movable cavity; a second substrate is disposed within the fixed cavity; a second test connector electrically connected to the second substrate is disposed on the fixed cavity; the first test connector and the second test connector are electrically connected to the annular isolator to be tested.
[0007] Furthermore, a test piece mounting slot is provided inside the fixed cavity; the annular isolator to be tested is provided inside the test piece mounting slot.
[0008] Furthermore, the first movable cavity compression guide mechanism and the second movable cavity compression guide mechanism have the same structure, and the second movable cavity compression guide mechanism includes a fixing block fixed on the first mounting base plate, a guide shaft with its rear end fixed on the fixing block and its front end inserted into the movable cavity, a spring sleeved on the guide shaft, and a screw with one end fixed to the side of the movable cavity; the first connecting plate is slidably sleeved on the guide shaft; the spring is compressed between the movable cavity and the first connecting plate; and the rear end of the screw is disposed through the first connecting plate.
[0009] Furthermore, the rear thrust extrusion drive mechanism includes a second lower mounting base plate fixed to the first mounting base plate, a sliding sleeve disposed at the front end of the second lower mounting base plate, a first rotating handle connected to the second lower mounting base plate by a rotating shaft, a sliding rod sleeved in the sliding sleeve, a first crank arm connected between the sliding rod and the first rotating handle, and a second connecting plate disposed at the front end of the sliding rod and fixedly connected to the first connecting plate; the sliding rod is arranged along the direction of the first movable cavity extrusion guide mechanism and the second movable cavity extrusion guide mechanism.
[0010] Furthermore, the movable cavity is provided with a screw connecting lug on its side; the screw connecting lug and the screw are connected by a thread.
[0011] Furthermore, the vertical pressing mechanism includes a column fixed on a first mounting base plate, a crank fixing base disposed on the top of the column, a slide rail arranged longitudinally on the column, a slider slidably sleeved on the slide rail, a pressure block seat fixed on the slider, a second rotating handle axially connected to the crank fixing base, a second crank arm rotatably disposed between the second rotating handle and the pressure block seat, and a pressure block stroke seat fixed to the bottom of the pressure block seat; the pressure block stroke seat presses against the annular isolator to be tested.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] This invention comprises a movable cavity, a fixed cavity, a first substrate, a first test connector, a second substrate, and a second test connector. A test piece mounting slot is provided on the fixed cavity. The annular isolator to be tested is placed into the test piece mounting slot and electrically connected to the first and second test connectors, ensuring reliable installation of the annular isolator to be tested.
[0014] This utility model, by setting up a first movable cavity extrusion guide mechanism, a second movable cavity extrusion guide mechanism, a rear push extrusion drive mechanism, and a first connecting plate, pushes the movable cavity closer to the fixed cavity through the rear push extrusion drive mechanism, and clamps the side of the annular isolator to be tested, ensuring reliable electrical connection between it and the first test connector and the second test connector.
[0015] This utility model provides guide shafts, springs, and screws on the first movable cavity extrusion guide mechanism and the second movable cavity extrusion guide mechanism to achieve elastic extrusion and ensure their clamping reliability.
[0016] This invention features a vertical pressing mechanism. By pressing down the second rotating handle, the pressure block travel seat can be pressed against the annular isolator to be tested, ensuring its clamping reliability.
[0017] In summary, this utility model has the advantages of simple structure, reliable clamping, and high testing efficiency, and has high practical and promotional value in the field of ring isolator testing technology. Attached Figure Description
[0018] 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.
[0019] Figure 1 This is a structural schematic diagram of the present invention from a first angle.
[0020] Figure 2 This is a structural schematic diagram of the present invention from a second angle.
[0021] Figure 3 This is a schematic diagram of the structure of the present invention at the first angle after removing the vertical pressing mechanism.
[0022] Figure 4 This is a schematic diagram of the second angle of the present invention after removing the vertical pressing mechanism.
[0023] Figure 5 This is a schematic diagram of the structure after the vertical pressing mechanism in this utility model.
[0024] In the above figures, the component names corresponding to the reference numerals are as follows:
[0025] 1. First mounting base plate; 2. First movable cavity extrusion guide mechanism; 3. Second movable cavity extrusion guide mechanism; 4. Rear push extrusion drive mechanism; 5. First connecting plate; 6. Movable cavity; 7. Fixed cavity; 8. Vertical pressing mechanism; 31. Fixed block; 32. Guide shaft; 33. Spring; 34. Screw; 41. Second lower mounting base plate; 42. First rotating handle; 43. First crank arm; 44. Sliding sleeve; 45. Sliding rod; 46. Second connecting plate; 61. Screw connecting lug; 62. First base plate; 63. First test connector; 71. Test piece mounting slot; 72. Second base plate; 73. Second test connector; 81. Column; 82. Crank fixing base; 83. Slide rail; 84. Slider; 85. Second rotating handle; 86. Second crank arm; 87. Press block seat; 88. Press block stroke seat. Detailed Implementation
[0026] 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. Example
[0027] 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.
[0028] 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.
[0029] 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.
[0030] 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.
[0031] like Figures 1 to 5As shown, this embodiment provides a ring isolator test fixture, which clamps the ring isolator to be tested to facilitate subsequent electrical testing. In this embodiment, the ring isolator test fixture includes a first mounting base plate 1, a fixed cavity 7 and a rear push-press drive mechanism 4 disposed on the first mounting base plate 1, a first movable cavity press guide mechanism 2 and a second movable cavity press guide mechanism 3 disposed on the first mounting base plate 1 and positioned between the fixed cavity 7 and the rear push-press drive mechanism 4, a first connecting plate 5 sleeved on the first movable cavity press guide mechanism 2 and the second movable cavity press guide mechanism 3 and connected to the rear push-press drive mechanism 4, a movable cavity 6 disposed at the front end of the first movable cavity press guide mechanism 2 and the second movable cavity press guide mechanism 3 and arranged opposite to the fixed cavity 7, and a vertical pressing mechanism 8 disposed on the first mounting base plate 1 and positioned above the fixed cavity 7 and the movable cavity 6. In this embodiment, a first substrate 62 is disposed within the movable cavity 6, and a first test connector 63 electrically connected to the first substrate 62 is disposed on the movable cavity 6. A second substrate 72 is disposed within the fixed cavity 7, and a second test connector 73 electrically connected to the second substrate 72 is disposed on the fixed cavity 7. The first test connector 63 and the second test connector 73 are electrically connected to the annular isolator to be tested. In this embodiment, a test piece mounting slot 71 is provided within the fixed cavity 7, and the annular isolator to be tested is placed in the test piece mounting slot 71. Furthermore, the first test connector 63 and the second test connector 73 are externally connected to testing equipment (which is a mature technology), and the external electrical connection structure will not be described in detail here.
[0032] In this embodiment, the first movable cavity compression guide mechanism 2 and the second movable cavity compression guide mechanism 3 have the same structure. Taking the second movable cavity compression guide mechanism 3 as an example, it includes a fixing block 31 fixed on the first mounting base plate 1, a guide shaft 32 with its rear end fixed on the fixing block 31 and its front end inserted into the movable cavity 6, a spring 33 sleeved on the guide shaft 32, and a screw 34 with one end fixed to the side of the movable cavity 6. The first connecting plate 5 is slidably sleeved on the guide shaft 32, and the spring 33 is compressed between the movable cavity 6 and the first connecting plate 5. The rear end of the screw 34 passes through the first connecting plate 5. Additionally, a screw connecting lug 61 is provided on the side of the movable cavity 6, and the screw connecting lug 61 and the screw 34 are connected by threads.
[0033] In addition, the rear thrust extrusion drive mechanism 4 of this embodiment includes a second lower mounting base plate 41 fixed on the first mounting base plate 1, a sliding sleeve 44 disposed at the front end of the second lower mounting base plate 41, a first rotating handle 42 connected to the second lower mounting base plate 41 by a rotating shaft, a sliding rod 45 sleeved in the sliding sleeve 44, a first crank arm 43 connected between the sliding rod 45 and the first rotating handle 42, and a second connecting plate 46 disposed at the front end of the sliding rod 45 and fixedly connected to the first connecting plate 5. The sliding rod 45 is arranged along the direction of the first movable cavity extrusion guide mechanism 2 and the second movable cavity extrusion guide mechanism 3.
[0034] After the annular isolator to be tested is placed in the test piece mounting slot 71, the first rotating handle 42 is turned, which drives the slide rod 45 and the first connecting plate 5 to move forward, compressing the spring 33, so that the movable cavity 6 moves closer to the fixed cavity 7 and clamps the side of the annular isolator to be tested.
[0035] After the annular isolator to be tested is clamped on the side, the vertical pressing mechanism 8 can be used to press it down onto the annular isolator. Here, the vertical pressing mechanism 8 includes a column 81 fixed to the first mounting base 1, a crank fixing base 82 disposed at the top of the column 81, a slide rail 83 arranged longitudinally on the column 81, a slider 84 slidably sleeved on the slide rail 83, a pressure block seat 87 fixed on the slider 84, a second rotating handle 85 axially connected to the crank fixing base 82, a second crank arm 86 rotatably disposed between the second rotating handle 85 and the pressure block seat 87, and a pressure block stroke seat 88 fixed to the bottom of the pressure block seat 87. In this embodiment, by pressing down the second rotating handle 85, the pressure block seat 87 and the pressure block stroke seat 88 move along the slide rail 83 and press down onto the surface of the annular isolator to be tested, thus completing the clamping of the annular isolator to be tested. After the ring isolator is tested, the clamp can be released by operating the second rotating handle 85 and the first rotating handle 42 in the opposite direction. The operation is simple.
[0036] 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 ring isolator test fixture for holding a ring isolator to be tested, characterized in that, Includes a first mounting base plate (1), a fixed cavity (7) and a rear push extrusion drive mechanism (4) disposed on the first mounting base plate (1), a first movable cavity extrusion guide mechanism (2) and a second movable cavity extrusion guide mechanism (3) disposed on the first mounting base plate (1) and positioned between the fixed cavity (7) and the rear push extrusion drive mechanism (4), a first connecting plate (5) sleeved on the first movable cavity extrusion guide mechanism (2) and the second movable cavity extrusion guide mechanism (3) and connected to the rear push extrusion drive mechanism (4), and a first connecting plate (5) disposed on the first movable cavity extrusion guide mechanism (2) and the second movable cavity extrusion guide mechanism (3). The movable cavity (6) is located at the front end of the first movable cavity extrusion guide mechanism (2) and the second movable cavity extrusion guide mechanism (3) and is arranged opposite to the fixed cavity (7). The vertical pressing mechanism (8) is set on the first mounting base plate (1) and placed above the fixed cavity (7) and the movable cavity (6). The rear push extrusion drive mechanism (4) pushes the movable cavity (6) closer to the fixed cavity (7). The fixed cavity (7) contains an annular isolator to be tested. The vertical pressing mechanism (8) presses down on the annular isolator to be tested.
2. The ring isolator test fixture according to claim 1, characterized in that, A first substrate (62) is disposed inside the movable cavity (6); a first test connector (63) electrically connected to the first substrate (62) is disposed on the movable cavity (6); a second substrate (72) is disposed inside the fixed cavity (7); a second test connector (73) electrically connected to the second substrate (72) is disposed on the fixed cavity (7); the first test connector (63) and the second test connector (73) are electrically connected to the annular isolator to be tested.
3. A ring isolator test fixture according to claim 2, characterized in that, A test piece mounting slot (71) is provided inside the fixed cavity (7); a ring isolator to be tested is provided inside the test piece mounting slot (71).
4. A ring isolator test fixture according to claim 1, characterized in that, The first movable cavity compression guide mechanism (2) and the second movable cavity compression guide mechanism (3) have the same structure. The second movable cavity compression guide mechanism (3) includes a fixing block (31) fixed on the first mounting base plate (1), a guide shaft (32) with its rear end fixed on the fixing block (31) and its front end inserted into the movable cavity (6), a spring (33) sleeved on the guide shaft (32), and a screw (34) with one end fixed to the side of the movable cavity (6). The first connecting plate (5) is slidably sleeved on the guide shaft (32). The spring (33) is squeezed between the movable cavity (6) and the first connecting plate (5). The rear end of the screw (34) is set through the first connecting plate (5).
5. A ring isolator test fixture according to claim 3, characterized in that, The rear push extrusion drive mechanism (4) includes a second lower mounting base plate (41) fixed on the first mounting base plate (1), a sliding sleeve (44) disposed at the front end of the second lower mounting base plate (41), a first rotating handle (42) connected to the second lower mounting base plate (41) by a rotating shaft, a sliding rod (45) sleeved in the sliding sleeve (44), a first crank arm (43) connected between the sliding rod (45) and the first rotating handle (42), and a second connecting plate (46) disposed at the front end of the sliding rod (45) and fixedly connected to the first connecting plate (5); the sliding rod (45) is arranged along the direction of the first movable cavity extrusion guide mechanism (2) and the second movable cavity extrusion guide mechanism (3).
6. A ring isolator test fixture according to claim 3, characterized in that, The movable cavity (6) is provided with a screw connecting lug (61) on its side; the screw connecting lug (61) and the screw (34) are connected by threads.
7. A ring isolator test fixture according to claim 1, characterized in that, The vertical pressing mechanism (8) includes a column (81) fixed on a first mounting base plate (1), a crank fixing base (82) set on the top of the column (81), a slide rail (83) arranged in the longitudinal direction on the column (81), a slider (84) slidably sleeved on the slide rail (83), a pressure block seat (87) fixed on the slider (84), a second rotating handle (85) axially connected to the crank fixing base (82), a second crank arm (86) rotatably set between the second rotating handle (85) and the pressure block seat (87), and a pressure block stroke seat (88) fixed at the bottom of the pressure block seat (87); the pressure block stroke seat (88) presses on the annular isolator to be tested.