CN105093105A - Encapsulation microwave switch test device - Google Patents
Encapsulation microwave switch test device Download PDFInfo
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- CN105093105A CN105093105A CN201510524441.6A CN201510524441A CN105093105A CN 105093105 A CN105093105 A CN 105093105A CN 201510524441 A CN201510524441 A CN 201510524441A CN 105093105 A CN105093105 A CN 105093105A
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Abstract
The invention discloses an encapsulation microwave switch test device comprising a test fixture, a test probe module for placing a microwave switch, and a test circuit board. The test fixture is disposed on the test circuit board and fixedly connected to a metal base plate. The test probe module is fixed in the middle of the test fixture, and is equipped with a built-in elastically scalable test probe of which one end is in contact with the test circuit board. The upper end of the test probe is connected with a signal input pin of the microwave switch. The test circuit board is mounted on the metal base plate, and is connected to a piece of monitoring equipment by a wire. The encapsulation microwave switch is placed in the test fixture, and the test probe and the test circuit board are connected with the pin of the microwave switch, so that contact between a chip pin and the test circuit board is avoided. The elastic test probe has a buffer effect, and can be in close contact with the test circuit board. Therefore, parasitic parameters are reduced, normal transmission of microwave signals is ensured, hard pressure on a chip is avoided, and the test reliability and test efficiency are improved.
Description
Technical field
The invention belongs to electronic component testing apparatus technical field, relate to a kind of encapsulation microwave switch proving installation.
Background technology
Encapsulation microwave switch is eight pin devices, maximum operation frequency is in microwave section (more than 4GHz), its pin is respectively that signal exports, passage one exports, passage two exports, working power, logic control, output enable and two ground pin and have a bulk of ground plane, to ensure proper device operation in the middle of bottom device.Current encapsulation microwave switch test mostly is and utilizes fixture that device is directly pressed on position corresponding to testing circuit board, then testing apparatus is utilized to test, this test mode due to device pin and circuit board be the mode firmly contacted, be easy to weldability device pin coating being caused to damage influence device, simultaneously due to the difference of the pin height of device itself, cause the Contact of pin and circuit board not to be very good, impact test effect even burns device; Another kind of test mode is then that direct welding is tested on circuit boards, destroys the performance of the face of weld of microwave switch pin, and easily destroys microwave switch structural behaviour index own during welding, is not suitable for the parameter testing of microwave switch.And the testing efficiency of these two kinds of test modes is not high, be not suitable for large batch of test.
Summary of the invention
The technical problem to be solved in the present invention is: for the mechanical damage adopting hard pressure or welding manner to bring during the test of existing encapsulation microwave switch, loose contact, easily short circuit, easily maloperation and easily cause the problems such as larger test data error, a kind of encapsulation microwave switch proving installation is provided, can realize not damaged, contact well, not short circuit, operation is reliable and test data accurate, to overcome problems of the prior art.
The technical scheme that the present invention takes is: a kind of encapsulation microwave switch proving installation, comprise test fixture, place test pushbutton module and the testing circuit board of microwave switch, described test fixture is placed on testing circuit board, be fixedly attached on metal base plate, described test pushbutton module is movably connected in the middle part of test fixture, what built-in one end contacted with testing circuit board can the test probe of elastic telescopic, described test probe upper end is connected with the signal input tube pin of microwave switch, described testing circuit board is arranged on metal base plate, be wired to monitoring equipment.
Preferably, above-mentioned test fixture comprises briquetting and fixture lower frame, described briquetting is provided with the boss for fastening microwave switch, be movably connected on the cover board, described cover plate is connected on fixture lower frame by cap hinge axle, undertaken fastening by the mode of engaging, this structure is convenient to microwave switch to carry out accurately location and fastening, operates and easy to loading and unloading.
Preferably, above-mentioned test pushbutton module comprises interior cavity main body and test probe, the cavity placing microwave switch and the mounting hole placing test probe is provided with in described interior cavity main body, described test probe comprises syringe needle, inserting tube and probe springs, described syringe needle is placed in inserting tube, lower end is connected to probe springs, the described probe springs other end is fixedly attached to inserting tube upper end, described cavity upper end is communicated to test fixture upper surface, by can the test probe of elastic telescopic, probe lower end contacts with testing circuit board, upper end and pins contact, can be beneficial to and microwave switch device pin and testing circuit board are kept certain distance, thus realize microwave switch pin and be connected with the good of testing circuit board, this structure is simple, handling and easy to maintenance.
Preferably, above-mentioned testing circuit board is by arranging sub-miniature A connector one, sub-miniature A connector two and sub-miniature A connector three are connected on monitoring equipment, described sub-miniature A connector one connects for signal input, described sub-miniature A connector two exports for passage one and connects, described sub-miniature A connector three exports for passage three and connects, described sub-miniature A connector one, sub-miniature A connector two and sub-miniature A connector three are fixedly connected on fixture lower frame left and right sides end face, inner core keeps in touch with microwave switch pin respectively, the joint provided by three fixing standard sub-miniature A connectors and monitoring equipment can be matched very smoothly, ensure that the quality of microwave signal in test process, need not repeatedly convert test cable during test simultaneously, make the data of test reliably more stable, consistance is good.
Preferably, above-mentioned metal base plate material adopts copper product, and surface coating one deck is gold-plated, is beneficial to heat radiation, is convenient to manufacture and install, ensures measured device good earth.
Preferably, above-mentioned test fixture is fixedly attached on metal base plate by screw, connects and reliably facilitates.
Preferably, the bottom of above-mentioned testing circuit board arranges power supply and control logic circuit input end, and described power supply and control logic circuit input end pass metal base plate, compact conformation, easy to operate.
Preferably, on above-mentioned cover plate, front end is provided with block tongue, and on described fixture lower frame, front end is provided with draw-in groove, and described block tongue is connected on cover plate by rotating shaft, the back side is also provided with the extension spring of contact, described extension spring connects on the cover board, is positioned at rotating shaft position on the lower side, realizes engaging be fastenedly connected by draw-in groove and block tongue, rotating shaft is provided with in the middle part of described block tongue, structure is simple, easy to operate, and engaging tightness is good.
Preferably, above-mentioned cover plate upper surface is provided with squeeze grip, described squeeze grip comprises rotary knob and is fixedly connected on the screw rod bottom rotary knob, described rotary knob comprise rotating disc and rotating disc are arranged turn boss, described screw rod is placed in the threaded hole of cover plate, and lower end and briquetting are movably connected, and can promote downwards briquetting and move, the pressing of differing heights pin can be realized by this structure, thus ensure the close contact that the pin of test component connects.
Preferably, above-mentioned rotating disc end face is the disc cam type structure of egg shape, and described rotating disc can rotate about the axis block tongue rear contact from axle center far-end, by distal contact block tongue back, block tongue can be prevented fixedly to be fastened in draw-in groove, to ensure being fixedly connected with of cover plate.
Preferably, above-mentioned raised head face is provided with the U-shaped detent for microwave switch location, U-shaped detent two side can touch in the device side wall in device pin direction, prevents pressing device time shift from moving, and avoids the bad or position of face contact to depart from.
Beneficial effect of the present invention: compared with prior art, encapsulation microwave switch is put in the test pushbutton module in test fixture by the present invention, the pin of microwave switch is by can the test probe of elastic telescopic be connected with testing circuit board, the contact of chip pin and testing circuit board can be avoided, reduce parasitic parameter, ensure the normal transmission of microwave signal, on the other hand, the elasticity of test probe plays the effect of buffering, close contact can be kept with testing circuit board, thus avoid the device failure of firmly pressing chip to bring, therefore, invention increases the testing efficiency of encapsulation microwave switch testing reliability and microwave switch, the mechanical damage that conventional hard pressure or welding manner bring is adopted when solving the test of encapsulation microwave switch, loose contact, easy short circuit, easy maloperation and easily cause the problem of larger test data error.
Accompanying drawing explanation
Perspective view when Fig. 1 is cover plate of the present invention unlatching;
Perspective view when Fig. 2 is cover plate closing of the present invention;
Fig. 3 is the schematic top plan view of Fig. 1;
Fig. 4 is the partial perspective enlarged diagram at the placement microwave switch place of Fig. 3;
Fig. 5 is the elevational schematic view of Fig. 1;
Fig. 6 is probe structure schematic diagram of the present invention;
Fig. 7 is the connection diagram of block tongue of the present invention and cover plate;
Fig. 8 is microwave switch structural representation.
In figure, 1-test fixture, 2-microwave switch, 3-test pushbutton module, 4-testing circuit board, 5-metal base plate, 6-SMA joint one, 7-SMA joint two, 8-SMA joint three, 9-power supply and logical circuit input end, 10-test probe, 11-briquetting, 12-boss, 13-cavity, 14-detent, 15-fixture lower frame, 16-mounting hole, cavity main body in 17-, 18-syringe needle, 19-inserting tube, 20-probe springs, 21-cover plate, 22-block tongue, 23-draw-in groove, 24-squeeze grip, 25-rotating shaft, 26-rotating disc, 27-turns boss, 28-flange, 29-cap hinge axle, 30-torsion spring, 31-extension spring, 33-directional hole, 34-symmetric windows, 35-attachment screw.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, invention is described further.
As shown in Fig. 1 ~ Fig. 8, a kind of encapsulation microwave switch proving installation, comprise test fixture 1, place test pushbutton module 3 and the testing circuit board 4 of microwave switch 2, described test fixture 1 is placed on testing circuit board 4, be fixedly attached on metal base plate 5, described test pushbutton module 3 is movably connected in the middle part of test fixture 1 by attachment screw 35, attachment screw 35 lower end is fixedly connected on metal base plate 5, upper end is that test pushbutton module 3 carries out spacing by head of screw, what built-in one end contacted with testing circuit board 4 can the test probe 10 of elastic telescopic, connected by the ground wire of test probe 10 by the pin contacted with testing circuit board 4 and middle part, described test probe 10 upper end is connected with the signal input tube pin of microwave switch 2, described testing circuit board 4 is arranged on metal base plate 5, be wired to monitoring equipment, encapsulation microwave switch is put in the test pushbutton module in test fixture by the present invention, the pin of microwave switch is by can the test probe of elastic telescopic be connected with testing circuit board, the contact of chip pin and testing circuit board can be avoided, reduce parasitic parameter, ensure the normal transmission of microwave signal, on the other hand, the elasticity of test probe plays the effect of buffering, close contact can be kept with testing circuit board, thus avoid the device failure of firmly pressing chip to bring, therefore, invention increases the testing efficiency of encapsulation microwave switch testing reliability and microwave switch, the mechanical damage that conventional hard pressure or welding manner bring is adopted when solving the test of encapsulation microwave switch, loose contact, easy short circuit, easy maloperation and easily cause the problem of larger test data error.
Preferably, above-mentioned test fixture 1 comprises briquetting 11 and fixture lower frame 15, described briquetting 11 is provided with the boss 12 for fastening microwave switch 2, be movably connected on cover plate 21, described cover plate 21 is connected on fixture lower frame 15 by cap hinge axle 29, be fastened on fixture lower frame 15 by the mode of engaging, cap hinge axle 29 is provided with torsion spring 30, cover plate can be allowed to have the power opened by torsion spring 30, it is made to be in fastening more firm state, this one-piece construction is convenient to microwave switch to carry out accurately location and fastening, operates and easy to loading and unloading, above-mentioned test pushbutton module 3 comprises interior cavity main body 17 and test probe 10, the cavity 13 placing microwave switch and the mounting hole 16 placing probe is provided with in described interior cavity main body 17, the front-rear side walls of cavity 13 is provided with symmetric windows 34, by symmetric windows 34 tweezers easy to use, measured device is taken out, greatly can improve testing efficiency, described test probe 10 comprises syringe needle 18, the inserting tube 19 of lower ending opening and probe springs 20, described syringe needle 18 is placed in inserting tube 19, be three grades of Step Shafts, the large end in bottom is connected to probe springs 20, the extended inserting tube 19 of large end, described probe springs 20 other end is fixedly attached to inserting tube 19 upper end, interior cavity main body 17 can be allowed to be in elasticity active state by the elastic reaction of test probe 10, interior cavity main body 17 can be moved down during compression, thus allow syringe needle 18 expose, be connected with device pin, described cavity 13 upper end is communicated to test fixture 1 upper surface, by can the test probe of elastic telescopic, probe lower end contacts with testing circuit board, upper end and pins contact, test pushbutton module can be in a compressed state, after compression, the syringe needle of test probe can be exposed to the pins contact with tested microwave Katyuan in cavity, realize the connection of circuit, microwave switch device pin and testing circuit board are kept certain distance, realize microwave switch pin by test probe to be connected with the good of testing circuit board, this structure is simple, handling and easy to maintenance.
Preferably, above-mentioned testing circuit board 4 is by arranging sub-miniature A connector 1, sub-miniature A connector 27 and sub-miniature A connector 38 are connected on monitoring equipment, described sub-miniature A connector 1 connects for signal input, described sub-miniature A connector 27 exports for passage one and connects, described sub-miniature A connector 38 exports for passage three and connects, described sub-miniature A connector 1, sub-miniature A connector 27 and sub-miniature A connector 38 are fixedly connected on fixture lower frame 15 left and right sides end face, inner core keeps in touch with microwave switch 2 pin respectively, the joint provided by three fixing standard sub-miniature A connectors and monitoring equipment can be matched very smoothly, ensure that the quality of microwave signal in test process, need not repeatedly convert test cable during test simultaneously, make the data of test reliably more stable, consistance is good.
Preferably, above-mentioned metal base plate 5 material adopts copper product, and surface coating one deck is gold-plated, is beneficial to heat radiation, is convenient to manufacture and install, ensures measured device good earth; Above-mentioned test fixture 1 is fixedly attached on metal base plate 5 by screw, connects and reliably facilitates; The bottom of above-mentioned testing circuit board 4 arranges power supply and control logic circuit input end 9, and described power supply and control logic circuit input end 9 pass metal base plate 5, compact conformation, easy to operate.
Preferably, on above-mentioned cover plate 21, front end is provided with block tongue 22, on described fixture lower frame 15, front end is provided with draw-in groove 23, described block tongue 22 is connected on cover plate 21 by rotating shaft, lower end is provided with V-type flange, this flange can be embedded in draw-in groove 23, the back side is also provided with the extension spring of contact, and described extension spring connects on the cover board, is positioned at rotating shaft position on the lower side, realize engaging by draw-in groove 23 and block tongue 22 to be fastenedly connected, block tongue 22 upper end arranges flange 28, and can be rotated by block tongue easily by flange 28, one-piece construction is simple, easy to operate, engaging tightness is good.
Preferably, above-mentioned cover plate 21 upper surface is provided with squeeze grip 24, described squeeze grip 24 comprises rotary knob and is fixedly connected on the screw rod 29 bottom rotary knob, described rotary knob comprise rotating disc 26 and rotating disc are arranged turn boss 27, described screw rod 19 is placed in the threaded hole of cover plate 21, lower end and briquetting 11 are movably connected, briquetting 11 can be promoted downwards move, the pressing of differing heights pin can be realized by this structure, thus ensure the close contact that the pin of test component connects.
Preferably, above-mentioned rotating disc 26 end face is the disc cam type structure of egg shape, and described rotating disc 26 can rotate about the axis block tongue 22 rear contact from axle center far-end, fixedly can be fastened in draw-in groove 23 by block tongue 22 by far-end, ensures being fixedly connected with of cover plate.
Preferably, above-mentioned boss 12 end face is provided with the U-shaped detent 14 for microwave switch location, detent 14 two side can touch in the device side wall in microwave switch 2 pin direction, prevents pressing device time shift from moving, and avoids the bad or position of face contact to depart from.
Preferably, because mask placement device is symmetrical structure, in order to quick and easy for installation, prevent installation direction mistake, be all provided with directional hole 33 at fixture lower frame 15 and cavity 13 left upper.
During test, microwave switch 2 is put into test pushbutton module 3, the cover plate 21 of the lower test fixture 1 of lid, turn rotary knob, by briquetting 11 by the upper surface being pressed in microwave switch 2, thus make the pin compact siro spinning technology of microwave switch 2, apply corresponding supply voltage and logic control level just can make device be in normal operating conditions, input signal is input to measured device 2 by input adapter 1, outputs signal to be transferred in monitoring equipment by sub-miniature A connector 27 and sub-miniature A connector 28 to measure.
When using this proving installation to test encapsulation microwave switch, with tweezers, measured device is put into the cavity of proving installation, cover cover plate, turn rotary knob, promote briquetting and move down, thus promotion measured device pin and test probe keep good contact, start proving installation, thus measured device real use state can be simulated completely, accurately and reliably, consistance is good test data.
The present invention, by changing testing circuit board and probe module, also can be used for the test of other model microwave device, applied range and expansibility good.
The above; be only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace; all should be encompassed within protection scope of the present invention, therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (10)
1. an encapsulation microwave switch proving installation, it is characterized in that: comprise test fixture (1), place test pushbutton module (3) and the testing circuit board (4) of microwave switch (2), described test fixture (1) is placed on testing circuit board (4), be fixedly attached on metal base plate (5), described test pushbutton module (3) is movably connected at test fixture (1) middle part, what built-in one end contacted with testing circuit board (4) can the test probe (10) of elastic telescopic, described test probe (10) upper end is connected with the signal input tube pin of microwave switch (2), described testing circuit board (4) is arranged on metal base plate (5), be wired to monitoring equipment.
2. one encapsulation microwave switch proving installation according to claim 1, it is characterized in that: described test fixture (1) comprises briquetting (11) and fixture lower frame (15), described briquetting (11) is provided with the boss (12) for fastening microwave switch (2), may be movably coupled on cover plate (21), described cover plate (21) is connected on fixture lower frame (15) by cap hinge axle (29), is undertaken fastening by the mode of engaging.
3. one encapsulation microwave switch proving installation according to claim 1, it is characterized in that: described test pushbutton module (3) comprises interior cavity main body (17) and test probe (10), the cavity (13) placing microwave switch (2) and the mounting hole (16) placing test probe (10) is provided with in described interior cavity main body (17), described test probe (10) comprises syringe needle (18), the inserting tube (19) of lower ending opening and probe springs (20), described syringe needle (18) is placed in inserting tube (19), lower end is connected to probe springs (20), described probe springs (20) other end is fixedly attached to inserting tube (19) upper end, described cavity (13) upper end is communicated to test fixture (1) upper surface.
4. one encapsulation microwave switch proving installation according to claim 1, it is characterized in that: described testing circuit board (4) is by arranging sub-miniature A connector one (6), sub-miniature A connector two (7) and sub-miniature A connector three (8) are connected on monitoring equipment, described sub-miniature A connector one (6) exports for signal and connects, described sub-miniature A connector two (7) exports for passage one and connects, described sub-miniature A connector three (8) exports for passage three and connects, described sub-miniature A connector one (6), sub-miniature A connector two (7) and sub-miniature A connector three (8) are fixedly connected on fixture lower frame (15) left and right sides end face, inner core keeps in touch with microwave switch (2) pin respectively.
5. one encapsulation microwave switch proving installation according to claim 1, it is characterized in that: described metal base plate (5) material adopts copper product, surface coating one deck is gold-plated.
6. one encapsulation microwave switch proving installation according to claim 1, it is characterized in that: the bottom of described testing circuit board (4) arranges power supply and control logic circuit input end (9), and described power supply and control logic circuit input end (9) are through metal base plate (5).
7. one encapsulation microwave switch proving installation according to claim 2, it is characterized in that: the upper front end of described cover plate (21) is provided with block tongue (22), the upper front end of described fixture lower frame (15) is provided with draw-in groove (23), described block tongue (17) is connected on cover plate (16) by rotating shaft (24), the back side is also provided with the extension spring (28) of contact, described extension spring (28) is connected on cover plate (16), be positioned at rotating shaft (24) position on the lower side, realize engaging by draw-in groove (18) and block tongue (17) and be fastenedly connected.
8. one encapsulation microwave switch proving installation according to claim 2, it is characterized in that: described cover plate (21) upper surface is provided with squeeze grip (24), described squeeze grip (24) comprises rotary knob and is fixedly connected on the screw rod (29) bottom rotary knob, described rotary knob comprise rotating disc (26) and rotating disc (26) upper arrange turn boss (27), described screw rod (29) is placed in the threaded hole of cover plate (21), lower end and briquetting (11) are movably connected, and can promote briquetting (11) downwards mobile.
9. one encapsulation microwave switch proving installation according to claim 8, it is characterized in that: described rotating disc (26) end face is the disc cam type structure of egg shape, and described rotating disc (26) can rotate about the axis block tongue (22) rear contact from axle center far-end.
10. one encapsulation microwave switch proving installation according to claim 2, it is characterized in that: described boss (12) end face is provided with the U-shaped groove (14) for microwave switch location, U-shaped detent two side (14) can touch in the device side wall in microwave switch (2) pin direction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510524441.6A CN105093105B (en) | 2015-08-25 | 2015-08-25 | A kind of encapsulation microwave switch test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510524441.6A CN105093105B (en) | 2015-08-25 | 2015-08-25 | A kind of encapsulation microwave switch test device |
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| CN105093105B CN105093105B (en) | 2018-09-21 |
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| CN114814720B (en) * | 2022-06-20 | 2022-09-30 | 成都市克莱微波科技有限公司 | Microwave direction finding device, system, method and storage medium |
| CN114814720A (en) * | 2022-06-20 | 2022-07-29 | 成都市克莱微波科技有限公司 | Microwave direction finding device, system, method and storage medium |
| CN116908658A (en) * | 2023-08-01 | 2023-10-20 | 中国人民解放军国防科技大学 | Small-size small-signal circuit board testing device |
| CN116908658B (en) * | 2023-08-01 | 2024-01-05 | 中国人民解放军国防科技大学 | Small-size small-signal circuit board testing device |
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| CN105093105B (en) | 2018-09-21 |
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