Test fixture for low-noise amplifier
By designing a low-noise amplifier test fixture containing clamps, rails and protective mechanisms, the problems of unstable and easy breakage of the wire and the connector head are solved, and stable testing of the low-noise amplifier is achieved.
Patent Information
- Application Number
- CN202421178637.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-05-28
AI Technical Summary
During the test process, the wires and connectors of existing low-noise amplifiers are unstable, which can easily lead to breakage and cannot meet the test requirements.
A test fixture for low noise amplifiers is designed, including base, clamps, guide rails and protective mechanisms. Through the design of the clamping body and fixing rod, the wires and connectors are clamped to prevent breakage, and the joints are always stable through the fit of the guide rails and protective mechanisms.
It effectively prevents the wires and connectors from breaking during the test, ensures stability at the connection, and meets the testing needs of low-noise amplifiers.
Smart Images
Figure CN223022158U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of microwave module testing, in particular to a test fixture for a low-noise amplifier. Background Art
[0002] A low-noise amplifier is an amplifier with a very low noise figure, generally used in the receiving module of the RF front end in various wireless communication systems. It is mainly used to amplify the signal received from the antenna in the communication system so as to facilitate the processing of subsequent electronic devices.
[0003] At present, for the existing low-noise amplifier, during testing, the detector is usually connected to the main body of the low-noise amplifier through a wire to conduct the test. However, during the test process, the wiring terminals are often not reinforced, which easily leads to unstable connection between the wire and the connector. Moreover, during the movement of the detector, the wire is prone to breakage at the connection, unable to meet the test requirements for the low-noise amplifier.
[0004] Therefore, it is necessary to provide a new test fixture for a low-noise amplifier to solve the above technical problems. Summary of the Utility Model
[0005] The technical problem solved by the utility model is to provide a test fixture for a low-noise amplifier that is convenient to use, has stable clamping of the main body, and has a good protection effect on the connection between the wire and the connector.
[0006] To solve the above technical problems, the test fixture for a low-noise amplifier provided by the utility model includes a base; a clamping member is arranged on the base, the main body is arranged between the clamping members, and two groups of guide rails are fixedly installed on both sides of the base, and a protection mechanism is arranged on the two groups of guide rails;
[0007] The protection mechanism includes multiple groups of connection seats, each group of connection seats is respectively installed on two guide rails, a first clamping body is fixedly installed above each of the two connection seats, a fixing rod is fixedly installed between the two first clamping bodies, a second clamping body is placed above each of the two first clamping bodies, fixing holes are formed on both sides of the first clamping body and the second clamping body, locking bolts are arranged inside the fixing holes, and the first clamping body and the second clamping body are fixedly connected through the locking bolts. A number of placing holes are formed between the first clamping body and the second clamping body, and protection pads are fixedly installed inside the placing holes on the first clamping body and the second clamping body.
[0008] Preferably, grooves are formed on both sides of the guide rail, convex blocks are fixedly installed on both sides below the connection seat, the convex blocks are slidably arranged inside the grooves, and the outer sides of the convex blocks are in fit with the inner walls of the grooves.
[0009] Preferably, support legs are fixedly installed at both ends below the base, fixing plates are fixedly installed below the two groups of support legs, and anti-slip pads are fixedly installed below the two fixing plates.
[0010] Preferably, the clamping member includes a first clamping block and a second clamping block. A second fixing block is fixedly installed in the middle of one end of the base. The first clamping block is arranged on one side of the second fixing block. A threaded rod is rotatably arranged on one side of the first clamping block. A threaded hole is formed in the middle of the second fixing block. The threaded rod is rotatably arranged inside the threaded hole. A second fastening plate is fixedly installed on the side of the first clamping block opposite to the threaded rod. A first fixing block is fixedly installed at the end of the base opposite to the second fixing block. The second clamping block is arranged on one side of the first fixing block. Two connecting plates are fixedly installed at both ends of one side of the second clamping block. Guide rods are fixedly installed in the middle of the two connecting plates. Guide holes are formed at both ends of the first fixing block. The two guide rods penetrate through the guide holes and extend to the outside of the first fixing block. Return springs are arranged on the outside of the two guide rods. The two ends of the return spring are respectively fixedly connected to the first fixing block and the connecting plate. An extrusion wheel is arranged between the second clamping block and the first fixing block. A braking motor is fixedly installed below the extrusion wheel. A first fastening plate is fixedly installed on the side of the second clamping block opposite to the first fixing block. The main body is arranged between the first fastening plate and the second fastening plate.
[0011] Preferably, the extrusion wheel is elliptical, and the outer side of the extrusion wheel is closely attached to the walls of the second clamping block and the first fixing block.
[0012] Preferably, sliding grooves are formed on both sides near the center position of the base. Sliding blocks are fixedly installed on both sides below the first clamping block and the second clamping block. The sliding blocks are slidably arranged inside the sliding grooves.
[0013] Preferably, limiting grooves are formed on one side of the two sliding grooves on the base. Limiting blocks are fixedly installed on one side of the sliding blocks below the first clamping block and the second clamping block. The limiting blocks are slidably arranged inside the limiting grooves, and the outer sides of the limiting blocks are closely attached to the inner walls of the limiting grooves.
[0014] Compared with the related art, the test fixture of the low-noise amplifier provided by the present utility model has the following beneficial effects:
[0015] The present utility model provides a test fixture for a low-noise amplifier. Turn the locking bolt, and then open the first clamp body and the second clamp body. Place the wire and the connector inside the placement holes between the first clamp body and the second clamp body. After fixation, fix the first clamp body and the second clamp body, so that the first clamp body and the second clamp body protect the wire and the connector respectively. When moving the detector, the protection mechanism will move along with the detector on the guide rail, so that the connection part of the wire and the connector is always in a stable state, thus providing good protection for the connection part of the wire and the connector and avoiding breakage of the connection part of the wire and the connector during the detection process. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic structural diagram of a preferred embodiment of the test fixture for a low-noise amplifier provided by the present utility model;
[0017] Figure 2 is a schematic structural diagram of another perspective of the test fixture for a low-noise amplifier provided by the present utility model;
[0018] Figure 3 is a schematic partial structural diagram of the test fixture for a low-noise amplifier provided by the present utility model;
[0019] Figure 4 is Figure 1 the schematic diagram of the protection mechanism shown;
[0020] Reference numerals in the figure: 1, base; 2, fixing plate; 3, anti-slip pad; 4, guide rod; 5, first fixing block; 6, return spring; 7, extrusion wheel; 8, connecting plate; 9, protection mechanism; 901, connecting seat; 902, first clamp body; 903, convex block; 904, placement hole; 905, locking bolt; 906, fixing rod; 907, second clamp body; 10, guide rail; 11, first clamping block; 12, second fixing block; 13, threaded rod; 14, second clamping block; 15, braking motor; 16, slider; 17, chute; 18, guide hole; 19, limiting groove; 20, limiting block; 21, first fastening plate; 22, main body; 23, second fastening plate; 24, threaded hole; 25, groove. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] The present utility model will be further described below in conjunction with the drawings and embodiments.
[0022] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , wherein, Figure 1 is a schematic structural diagram of a preferred embodiment of the test fixture for a low-noise amplifier provided by the present utility model; Figure 2Another perspective structural schematic diagram of the test fixture for the low-noise amplifier provided by the present utility model; Figure 3 Partial structural schematic diagram of the test fixture for the low-noise amplifier provided by the present utility model; Figure 4 For Figure 1Schematic diagram of the protection mechanism shown. A test fixture for a low-noise amplifier, including a base 1. Both ends of the lower part of the base 1 are fixedly installed with support legs. Fixed plates 2 are fixedly installed under both groups of support legs. Anti-slip pads 3 are fixedly installed under the two fixed plates 2. When detecting the main body 22, the stability of the overall placement of the detection device is improved; a clamping member is arranged on the base 1, and the main body 22 is arranged between the clamping members. The clamping member includes a first clamping block 11 and a second clamping block 14. A second fixed block 12 is fixedly installed in the middle of one end of the base 1. The first clamping block 11 is arranged on one side of the second fixed block 12. A threaded rod 13 is rotatably arranged on one side of the first clamping block 11. A threaded hole 24 is opened in the middle of the second fixed block 12. The threaded rod 13 is rotatably arranged inside the threaded hole 24. A second fastening plate 23 is fixedly installed on the side of the first clamping block 11 opposite to the threaded rod 13. A first fixed block 5 is fixedly installed at the end of the base 1 opposite to the second fixed block 12. The second clamping block 14 is arranged on one side of the first fixed block 5. Sliding grooves 17 are opened on both sides of the base 1 near the center position. Sliders 16 are fixedly installed on both sides of the lower parts of the first clamping block 11 and the second clamping block 14. The sliders 16 are slidably arranged inside the sliding grooves 17 to improve the stability of the movement of the first clamping block 11 and the second clamping block 14. Limit grooves 19 are opened on one side of the two sliding grooves 17 on the base 1. Limit blocks 20 are fixedly installed on one side of the sliders 16 under the first clamping block 11 and the second clamping block 14. The limit blocks 20 are slidably arranged inside the limit grooves 19. The outer sides of the limit blocks 20 are closely attached to the inner walls of the limit grooves 19, so that the first clamping block 11 and the second clamping block 14 can move smoothly, and the situation of dislocation and jamming of the first clamping block 11 and the second clamping block 14 during movement is avoided. Connecting plates 8 are fixedly installed at both ends of one side of the second clamping block 14. Guide rods 4 are fixedly installed in the middle of the two connecting plates 8. Guide holes 18 are opened at both ends of the first fixed block 5. The two guide rods 4 penetrate through the guide holes 18 and extend to the outside of the first fixed block 5. Return springs 6 are arranged on the outer sides of the two guide rods 4, which can quickly pull the second clamping block 14 to reset. Both ends of the return spring 6 are fixedly connected to the first fixed block 5 and the connecting plate 8 respectively. An extrusion wheel 7 is arranged between the second clamping block 14 and the first fixed block 5. The extrusion wheel 7 is elliptical. The outer side of the extrusion wheel 7 is closely attached to the walls of the second clamping block 14 and the first fixed block 5, so as to conveniently change the position of the second clamping block 14. A braking motor 15 is fixedly installed under the extrusion wheel 7. A first fastening plate 21 is fixedly installed on the side of the second clamping block 14 opposite to the first fixed block 5. The main body 22 is arranged between the first fastening plate 21 and the second fastening plate 23. When installing the main body 22, first adjust the position of the first clamping block 11. When adjusting, manually turn the threaded rod 13. The threaded rod 13 moves forward, driving the first clamping block 11 on one side to move forward. After completion, place the main body 22 between the first fastening plate 21 and the second fastening plate 23.Then start the braking motor 15. When the braking motor 15 works, the rotation of its output end drives the upper extrusion wheel 7 to rotate, squeezing one side of the clamping block two 14, thereby pushing the clamping block two 14 forward, so that the fastening plate one 21 and the fastening plate two 23 clamp the main body 22 together.
[0023] On both sides of the base 1, two groups of guide rails 10 are fixedly installed, and a protection mechanism 9 is arranged on the two groups of guide rails 10; the protection mechanism 9 includes multiple groups of connecting seats 901, each group of connecting seats 901 is respectively installed on the two guide rails 10, grooves 25 are opened on both sides of the guide rails 10, and two convex blocks 903 are fixedly installed on both sides below the connecting seat 901, and the convex blocks 903 are slidably arranged inside the grooves 25, and the outer sides of the convex blocks 903 are fitted with the inner walls of the grooves 25, which is convenient to drive the whole protection mechanism 9 to move. On both sides above the two connecting seats 901, a clamp body one 902 is fixedly installed, a fixing rod 906 is fixedly installed between the two clamp bodies one 902, a clamp body two 907 is placed above the two clamp bodies one 902, fixing holes are opened on both sides of the clamp body one 902 and the clamp body two 907, and locking bolts 905 are arranged inside the fixing holes. The clamp body one 902 and the clamp body two 907 are fixedly connected by the locking bolts 905. A number of placing holes 904 are opened between the clamp body one 902 and the clamp body two 907, and protective pads are fixedly installed inside the placing holes 904 on the clamp body one 902 and the clamp body two 907. They are connected to each other through connectors and wires. When connecting, turn the locking bolts 905, then open the clamp body one 902 and the clamp body two 907, place the wire and the connector inside the placing holes 904 between the clamp body one 902 and the clamp body two 907 respectively, and fix the clamp body one 902 and the clamp body two 907 after fixing, so that the clamp body one 902 and the clamp body two 907 protect the wire and the connector respectively.
[0024] The working principle of the test fixture for the low-noise amplifier provided by the present utility model is as follows:
[0025] When installing the main body 22, first adjust the position of the clamping block one 11. When adjusting, manually turn the threaded rod 13, the threaded rod 13 moves forward, driving one side of the clamping block one 11 to move forward. After completion, place the main body 22 between the fastening plate one 21 and the fastening plate two 23.
[0026] Then start the braking motor 15. When the braking motor 15 works, the rotation of its output end drives the upper extrusion wheel 7 to rotate, squeezing one side of the clamping block two 14, thereby pushing the clamping block two 14 forward, so that the fastening plate one 21 and the fastening plate two 23 clamp the main body 22 together.
[0027] After the fixation of the main body 22 is completed, they are interconnected through the connector and the wire. During the connection, turn the locking bolt 905, then open the first clamping body 902 and the second clamping body 907, place the wire and the connector inside the placement hole 904 between the first clamping body 902 and the second clamping body 907 respectively. After the fixation is completed, fix the first clamping body 902 and the second clamping body 907 so that the first clamping body 902 and the second clamping body 907 protect the wire and the connector respectively.
[0028] Compared with the related art, the test fixture of the low-noise amplifier provided by the present utility model has the following beneficial effects:
[0029] The present utility model provides a test fixture for a low-noise amplifier. Turn the locking bolt 905, then open the first clamping body 902 and the second clamping body 907, place the wire and the connector inside the placement hole 904 between the first clamping body 902 and the second clamping body 907 respectively. After the fixation is completed, fix the first clamping body 902 and the second clamping body 907 so that the first clamping body 902 and the second clamping body 907 protect the wire and the connector respectively. During the movement of the detector, the protection mechanism 9 will move along with the detector on the guide rail 10, so that the connection part of the wire and the connector is always in a stable state, thereby providing good protection for the connection part of the wire and the connector and avoiding the breakage of the connection part of the wire and the connector during the detection process.
[0030] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present utility model.
Claims
1. A test fixture for a low noise amplifier, characterized in that: It comprises a base; a clamping member is arranged on the base, a main body is arranged in the middle of the clamping member, two sets of guide rails are fixedly installed on both sides of the base, and protective mechanisms are arranged on the two sets of guide rails; The protective mechanism includes multiple groups of connecting seats, each group of connecting seats is respectively installed on two guide rails, a clamp body 1 is fixedly installed above the two connecting seats, a fixing rod is fixedly installed between the two clamp bodies 1, a clamp body 2 is placed above the two clamp bodies 1, fixing holes are opened on both sides of the clamp body 1 and the clamp body 2, locking bolts are arranged on the inner side of the fixing holes, the clamp body 1 and the clamp body 2 are fixedly connected by the locking bolts, a plurality of placement holes are opened between the clamp body 1 and the clamp body 2, and protective pads are fixedly installed on the inner sides of the placement holes on the clamp body 1 and the clamp body 2.
2. The test fixture for a low noise amplifier according to claim 1, characterized in that: Grooves are provided on both sides of the guide rail, and protrusions are fixedly installed on both sides below the connecting seat. The protrusions are slidably arranged on the inner side of the groove, and the outer side of the protrusion is in contact with the inner wall of the groove.
3. The test fixture for a low noise amplifier according to claim 1, characterized in that: Support legs are fixedly installed at both ends below the base, fixing plates are fixedly installed below the two groups of support legs, and anti-slip pads are fixedly installed below the two fixing plates.
4. The test fixture for a low noise amplifier according to claim 1, characterized in that: The clamping member includes a clamping block 1 and a clamping block 2, a fixing block 2 is fixedly installed in the middle of one end of the base, the clamping block 1 is arranged on one side of the fixing block 2, a threaded rod is rotatably arranged on one side of the clamping block 1, a threaded hole is opened in the middle of the fixing block 2, the threaded rod is rotatably arranged on the inner side of the threaded hole, a fastening plate 2 is fixedly installed on the side of the clamping block 1 opposite to the threaded rod, a fixing block 1 is fixedly installed on the end of the base opposite to the fixing block 2, the clamping block 2 is arranged on one side of the fixing block 1, and both ends of one side of the clamping block 2 are fixedly installed Connecting plate, guide rods are fixedly installed in the middle of the two connecting plates, guide holes are opened on both ends of the fixing block, the two guide rods pass through the guide holes and extend to the outside of the fixing block, reset springs are arranged on the outside of the two guide rods, the two ends of the reset springs are respectively fixedly connected to the fixing block and the connecting plate, an extrusion wheel is arranged between the clamping block two and the fixing block one, a brake motor is fixedly installed under the extrusion wheel, a fastening plate one is fixedly installed on the side of the clamping block two opposite to the fixing block one, and the main body is arranged between the fastening plate one and the fastening plate two.
5. The test fixture for a low noise amplifier according to claim 4, characterized in that: The extrusion wheel is elliptical in shape, and the outer side of the extrusion wheel is in close contact with the wall of the second clamping block and the first fixing block.
6. The test fixture for a low noise amplifier according to claim 4, characterized in that: Slide grooves are provided on both sides of the base near the center, and sliders are fixedly installed on both sides below the clamping block 1 and the clamping block 2, and the sliders are slidably arranged inside the slide grooves.
7. The test fixture for a low noise amplifier according to claim 6, characterized in that: Limiting grooves are provided on one side of the two slide grooves on the base, and limiting blocks are fixedly installed on one side of the sliding block under the clamping block 1 and the clamping block 2. The limiting blocks are slidably arranged on the inner side of the limiting grooves, and the outer side of the limiting blocks is close to the inner wall of the limiting grooves.