CN211318700U

CN211318700U - DCDC power supply testing tool

Info

Publication number: CN211318700U
Application number: CN201921823780.4U
Authority: CN
Inventors: 姜文豪; 刘洋; 周立元; 韩成章
Original assignee: Qingdao Aerospace Semiconductor Research Institute Co ltd
Current assignee: Qingdao Aerospace Semiconductor Research Institute Co ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-08-21
Anticipated expiration: 2029-10-28

Abstract

The utility model relates to a DCDC power supply testing tool, which comprises a positioning tool for placing a DCDC power supply module; the location frock is including the fixed handlebar frame that sets up, set up handlebar sub-fore stock and the handlebar back seat in the handlebar frame respectively, set up the handlebar sub-support body on handlebar frame and handlebar back seat, the horizontal passage of setting between handlebar sub-support body and the handlebar sub-fore stock, the rifle trigger that the activity set up in the horizontal passage, set up at handlebar sub-support body front end and be used for putting DCDC power module's bolt location pedestal, the vertical through-hole of technology that sets up on bolt location pedestal and be located DCDC power module below. The utility model relates to a rationally, compact structure and convenient to use.

Description

DCDC power supply testing tool

Technical Field

The invention relates to a DCDC power supply testing tool.

Background

At present, the conventional system and method for testing the output voltage of the DCDC module power supply by using a special connector are simple connection tests, and the test precision is low, because no matter how small the contact resistance of the connector is, a voltage drop phenomenon is generated under a large current, which is unacceptable for high-precision tests. The method has the significance that the power and voltage signals are divided into two paths, the power part still uses the traditional connector terminal, and a group of spring probes are additionally arranged to specially test the output pins of the module. Because the actual current that universal meter test voltage produced is minimum, and the contact resistance of spring probe is minimum equally, so the voltage drop of production can be ignored, has effectively improved the measuring accuracy. In the traditional method, because the alligator clip is in point contact with the pins of the converter, the converter is easily damaged or the internal circuit is easily subjected to soft breakdown due to poor contact of the clip, so that the human errors and the rejection probability of products are greatly increased, and the production cost is sharply increased. Although the CN201520454637.8 test board special for the full-scale series DC-DC converter provides a set of solution, the detection precision is not high enough, and the test board is not suitable for high precision fields such as space remote control, inertial navigation system, deep sea detection and the like.

Disclosure of Invention

The invention provides a tool and a method for testing a DCDC power supply. No matter how small the contact resistance of the traditional connector is, the voltage drop phenomenon can be generated under the large current, which is an unacceptable error for the military high-precision test. The test significance of the invention is that the power and voltage signals are divided into two paths, the power part still uses the traditional connector terminal, and a group of spring probes are added to specially test the output pins of the module. Because the actual current that universal meter test voltage produced is minimum, and the contact resistance of spring probe is minimum equally, so the voltage drop of production can be ignored, has effectively improved the measuring accuracy. Due to the adoption of the action structure which accords with human engineering, the clamping efficiency is also improved. The invention adopts the action mode similar to the trigger pulling, and can effectively improve the testing efficiency of the module.

In order to solve the problems, the technical scheme adopted by the invention is as follows:

a DCDC power supply testing tool comprises a positioning tool for placing a DCDC power supply module; the positioning tool comprises a fixedly arranged gun handle frame, a gun handle front support and a gun handle back support which are respectively arranged on the gun handle frame, a gun handle sub-frame body arranged above the gun handle frame and the gun handle back support, a horizontal channel arranged between the gun handle sub-frame body and the gun handle front support, a gun trigger movably arranged in the horizontal channel, a bolt positioning pedestal arranged at the front end of the gun handle sub-frame body and used for placing a DCDC power supply module, a process vertical through hole arranged on the bolt positioning pedestal and positioned below the DCDC power supply module, a gun wrench arranged at the rear side of the lower end of the gun trigger and used for manual or motor control, a force regulator arranged at the lower end of the bolt positioning pedestal and positioned right in front of the gun trigger, an adjusting positioning slotted hole distributed on the force regulator, a gun reset spring with one end positioned at the adjusting positioning slotted hole and the other end connected with the front end of the gun trigger, a guide positioning groove, a guide positioning hole, a guide positioning groove and a guide positioning spring, A gun bolt body which is arranged above the gun handle sub-frame body and is connected with the top of a gun trigger, two symmetrical link arms with root parts distributed and hinged at two sides of the rear part of the gun handle sub-frame body, a link rod long slot obliquely arranged on the link arm, a driving transverse shaft arranged on the gun bolt body and corresponding to the end part positioned in the link rod long slot, a gun bolt guiding back cover arranged at the rear part of the gun handle sub-frame body and sliding in a through slot at the lower part of the gun bolt body, an installation process slot arranged at the front end of the gun bolt body side by side and used for placing a spring probe, an upper movable cover plate with lower end hinged on a horizontal bent arm of the link arm and in an L shape, a front process groove vertically distributed on the front end surface of a vertical plate of the upper movable cover plate, a pushing ejector rod arranged at the lower end surface of the upper movable cover plate and corresponding to the installation process slot and used for pushing the spring, And a traction spring arranged between the push ejector rod and the upper movable cover plate.

The bolt positioning pedestal is provided with a workpiece positioning process concave platform for placing a DCDC power supply module, the front end of the workpiece positioning process concave platform is longitudinally provided with a longitudinal front concave groove for placing a front probe of a detection device, and a workpiece taking process groove for taking out the front probe is arranged below the longitudinal front concave groove.

The automatic test is used, the module is only required to be placed on a specific tool clamp and then connected into a test instrument, the test instrument automatically switches test points, and the efficiency is improved. This equipment mainly used automatic test power module's electric insulation performance compares in artifical test in the past, and automatic test security performance obviously improves: the hand-held electrode is used for testing, so that the high-voltage electricity is easy to reach, and the breakdown inside the module is easy to cause by mistaken touch. And use automatic test, only need put the module on specific frock clamp, then insert the test instrument can, the test instrument automatic switch test point, efficiency also promotes to some extent.

The invention has the advantages of reasonable design, low cost, firmness, durability, safety, reliability, simple operation, time and labor saving, capital saving, compact structure and convenient use.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic view of a first embodiment of the present invention.

FIG. 3 is a schematic diagram of a second embodiment of the present invention.

Fig. 4 is a schematic diagram of the structure of the explosion of the present invention.

Fig. 5 is a schematic diagram of the structure of the control of the present invention.

Wherein: 1. auxiliary tools; 2. positioning a tool; 3. a feeding and discharging manipulator; 4. feeding and discharging suction heads; 5. a bottom adsorption head; 6. a detection device; 7. a front positioning manipulator; 8. a front measuring head; 9. a measuring probe; 10. a gun holder frame; 11. a gun handle backseat; 12. a gun handle subframe body; 13. a bolt positioning pedestal; 14. processing a vertical through hole; 15. a gun trigger; 16. a gun wrench; 17. a force adjuster; 18. adjusting the positioning slotted hole; 19. a gun return spring; 20. a guide positioning groove; 21. a link arm; 22. a long groove of the connecting rod; 23. a bolt guide rear cover; 24. a bolt body; 25. mounting a process groove; 26. an upper removable cover plate; 27. a pre-process groove; 28. pushing the ejector rod; 29. a guiding arc angle; 30. a tension spring; 31. positioning a process concave platform on a workpiece; 32. a longitudinal forward groove; 33. a front probe; 34. and (5) taking a piece of process groove.

Detailed Description

As shown in fig. 1-4, the DCDC power testing tool of this embodiment includes a positioning tool 2 for placing a DCDC power module, an auxiliary tool 1 disposed on one side of the positioning tool 2, a loading and unloading manipulator 3 disposed on the auxiliary tool 1, a loading and unloading suction head 4 disposed at a front end of the loading and unloading manipulator 3 and used for replacing the to-be-tested DCDC power module, a bottom suction head 5 disposed below the positioning tool 2 and used for sucking or taking out the DCDC power module, a detecting device 6 disposed on the auxiliary tool 1, a front positioning manipulator 7 disposed on the auxiliary tool 1 and located at a front end of the positioning tool 2, a front measuring head 8 disposed at a front end of the front positioning manipulator 7, and a measuring probe 9 disposed at a front end of the front measuring head 8 and used for electrically contacting with the DCDC power module.

The positioning tool 2 comprises a fixedly arranged gun handle frame 10, a gun handle front support and a gun handle back support 11 which are respectively arranged on the gun handle frame 10, a gun handle sub frame body 12 arranged on the gun handle frame 10 and the gun handle back support 11, a horizontal channel arranged between the gun handle sub frame body 12 and the gun handle front support, a gun trigger 15 movably arranged in the horizontal channel, a bolt positioning pedestal 13 arranged at the front end of the gun handle sub frame body 12 and used for placing a DCDC power supply module, a process vertical through hole 14 arranged on the bolt positioning pedestal 13 and positioned below the DCDC power supply module, a gun wrench 16 arranged at the rear side of the lower end of the gun trigger 15 and used for manual or motor control, a force regulator 17 arranged at the lower end of the gun bolt positioning pedestal 13 and positioned in front of the gun trigger 15, adjusting positioning slotted holes 18 distributed on the force regulator 17, a gun reset spring 19 with one end positioned at the other end of the adjusting positioning slotted holes 18 and connected with the front end of the gun trigger 15, and a gun reset spring 19, A guiding and positioning groove 20 which is arranged on the gun handle sub-frame body 12 and the upper part of the rear side of the gun trigger 15 slides longitudinally in the guiding and positioning groove, a bolt body 24 which is arranged above the gun handle sub-frame body 12 and is connected with the top of the gun trigger 15, two symmetrical link arms 21 with the root parts distributed and hinged on the two sides of the rear part of the gun handle sub-frame body 12, a link rod long groove 22 which is obliquely arranged on the link arm 21, a driving transverse shaft which is arranged on the bolt body 24 and the corresponding end part is arranged in the link rod long groove 22, a bolt guiding and rear cover 23 which is arranged on the rear part of the gun handle sub-frame body 12 and the bolt body 24 slides in a through groove at the lower part thereof, an installation process groove 25 which is arranged at the front end of the bolt body 24 side by side and is used for placing a spring probe, an upper movable cover plate 26 with the lower end hinged on the horizontal bent arm of the link arm 21 and in an L shape, a front process groove 27 which is vertically distributed on the front, A guide arc angle 29 provided on the cantilever head of the push ram 28 for guiding into the installation process slot 25, and a pull spring 30 provided between the push ram 28 and the upper removable cover plate 26.

A workpiece positioning process concave table 31 for placing the DCDC power supply module is arranged on the bolt positioning pedestal 13, a longitudinal front groove 32 for placing a front probe 33 of the detection device 6 is longitudinally arranged at the front end of the workpiece positioning process concave table 31, and a workpiece taking process groove 34 for taking out the front probe 33 is arranged below the longitudinal front groove 32.

The detection device 6 comprises a probe and an insulation test circuit, wherein the probe and the insulation test circuit are respectively used for measuring the electrical insulation of the DCDC power supply module; the insulation test circuit comprises a triode Q1, a voltage regulator tube D1, a single chip microcomputer, a plurality of triodes Q2 and a plurality of relays;

as a specific mode, as shown in fig. 5, the external detection circuit detects that the high-voltage input is grounded through a voltage regulator tube D1, the emitter of a triode Q1 is grounded through the base of a triode Q1, and the collector of the triode Q1 is connected with a pin 1 of the single chip microcomputer; the pin 40 of the singlechip is connected with a power supply, and the pin 20 of the singlechip is grounded; the output pin of the single chip microcomputer is connected with the base electrode of a triode Q2, the emitting electrode of a triode Q2 is grounded, the collecting electrode of a triode Q2 is connected with a relay control coil and is electrically connected with a power supply, and a relay executes a normally open contact and is connected with a test circuit for testing high voltage and a plurality of test points;

the test switching of the corresponding test points is realized by switching on and off the triodes Q2 through the singlechip.

The test circuit is electrically connected with the measuring point of the DCDC power supply module through the corresponding probe.

The detection device 6 comprises a front probe 33 which is used for detecting the power of the DCDC power supply module and is electrically connected with a detection connector terminal, and a spring probe which is used for detecting the voltage signal of the DCDC power supply module; the spring probe is electrically connected with the multimeter through a lead.

The method for testing the performance parameters of the direct current power supply comprises the following steps of firstly, feeding through a manipulator; then, positioning and clamping are carried out through a tool; secondly, measuring insulation parameters, power parameters and voltage signals of the direct current power supply through a probe respectively; and thirdly, taking out the direct-current power supply through the manipulator after the measurement is finished.

For the feeding step, the feeding and discharging manipulator 3 controls the feeding and discharging sucker 4 to adsorb/paw to clamp the direct current power supply to the workpiece positioning process concave table 31;

for the positioning and clamping step of the tool, firstly, pulling a gun wrench 16, longitudinally sliding a gun trigger 15 in a horizontal channel and a guide positioning groove 20 against the pulling force of a gun return spring 19, and simultaneously pulling a gun bolt body 24 to retreat along a gun bolt guide rear cover 23; then, the bolt body 24 is drawn to move along the long groove 22 of the connecting rod by driving the transverse shaft, so that the upper movable cover plate 26 swings backwards; next, the spring probe is placed into the mounting process tank 25; thirdly, the gun wrench 16 is loosened, the upper movable cover plate 26 swings forwards under the action of the restoring force of the gun return spring 19 and the gravity of the upper movable cover plate 26, and the guide arc angle 29 enters the rear part of the installation process groove 25, so that the ejector rod 28 is pushed to prop against the spring probe to move forwards; next, the pre-process groove 27 is advanced and positioned against the dc power supply; then, the spring probe is contacted with the direct current power supply test point by utilizing the distance difference with the prior art groove 27; and then, the front positioning manipulator 7 drives the measuring probe 9 to be in contact with the direct-current power supply testing point through the front measuring head 8.

For the step of respectively carrying out insulation parameters on the direct current power supply through the probes, firstly, starting a single chip microcomputer; then, when the single chip microcomputer detects that external high voltage input exists, the on-off of the relay is controlled according to a preset programming sequence, and the probe of the detection device 6 is used for testing each insulation test point.

For the step of measuring the power parameter and the voltage signal of the direct current power supply through the probe respectively, the spring probe measures the voltage signal through the multimeter, and the connector terminal measures the power parameter through the front probe 33.

The auxiliary tool 1 realizes the installation of a measuring device, the positioning tool 2 realizes the positioning of a DCDC direct-current power supply module, the feeding and discharging mechanical arm 3 realizes the automatic feeding and discharging, when the feeding and discharging suction head 4 realizes the detection, the adsorption positioning is realized, when the material is taken, reverse blowing is carried out, the bottom adsorption head 5 or the mechanical arm realizes the nondestructive transportation of the power supply, the detection device 6 is a common detection device, the front positioning mechanical arm 7 and the front measurement head 8 realize the measurement of the universal power, the measurement probe 9 realizes the measurement of the universal power, the gun handle frame 10, the gun handle back seat 11 and the gun handle sub-frame body 12 realize the support, the vertical through hole 14 of the gun bolt positioning pedestal 13 facilitates the lifting of a lower suction nozzle, the gun trigger 15 realizes the guiding linkage driving, the gun wrench 16 realizes the driving input, the force regulator 17 realizes the speed regulation according to the condition of the, the guide positioning groove 20 realizes guide, the link arm 21 and the link elongated slot 22 realize linkage, the bolt guide rear cover 23 realizes guide, the bolt body 24 realizes linkage, the mounting process groove 25 realizes guide drive, the upper movable cover plate 26 realizes downward pressing to guide the spring probe, meanwhile swing is realized through swing, downward swing is realized through self weight and spring force, the front process groove 27 realizes side push positioning of a power supply, a cushion pad can be additionally arranged to reduce impact loss power supply, the ejector rod 28 is pushed to realize subsequent push of the probe, the guide arc angle 29 is convenient for pushing the ejector rod to enter the groove, the ejector rod is controlled by the traction spring 30 to avoid swing under gravity, the workpiece positioning process concave table 31 is convenient to position, the longitudinal front groove 32 is convenient for guiding of the front probe 33, and the workpiece taking process groove 34 is convenient for manual or mechanical hand to take out.

The present invention has been fully described for a clear disclosure and is not to be considered as an exemplification of the prior art.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; it is obvious as a person skilled in the art to combine several aspects of the invention. And such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A DCDC power supply test tool, characterized in that: the device comprises a positioning tool (2) for placing a DCDC power supply module; the positioning tool (2) comprises a gun handle frame (10) fixedly arranged, a gun handle front support and a gun handle back seat (11) respectively arranged on the gun handle frame (10), a gun handle sub-frame body (12) arranged on the gun handle frame (10) and the gun handle back seat (11), a horizontal channel arranged between the gun handle sub-frame body (12) and the gun handle front support, a gun trigger (15) movably arranged in the horizontal channel, a bolt positioning pedestal (13) arranged at the front end of the gun handle sub-frame body (12) and used for placing a DCDC power module, a process vertical through hole (14) arranged on the bolt positioning pedestal (13) and positioned below the DCDC power module, a gun wrench (16) arranged at the rear side of the lower end of the gun trigger (15) and used for manual or motor control, a force regulator (17) arranged at the lower end of the bolt positioning pedestal (13) and positioned right in front of the gun trigger (15), An adjusting positioning slot hole (18) distributed on the force adjuster (17), a gun return spring (19) with one end positioned at the adjusting positioning slot hole (18) and the other end connected with the front end of the gun trigger (15), a guide positioning slot (20) arranged on the gun handle sub-frame body (12) and with the upper part of the rear side of the gun trigger (15) longitudinally sliding therein, a bolt body (24) positioned above the gun handle sub-frame body (12) and connected with the top of the gun trigger (15), two symmetrical link arms (21) with the root parts distributed and hinged at the two sides of the rear part of the gun handle sub-frame body (12), a link rod long groove (22) obliquely arranged on the link arms (21), a driving transverse shaft arranged on the bolt body (24) and with the corresponding end part positioned in the link rod long groove (22), a bolt guide rear cover (23) arranged at the rear part of the gun handle sub-frame body (12) and with the bolt body (24) sliding in a, The device comprises installation process grooves (25) which are arranged at the front end of a gun bolt body (24) side by side and used for placing a spring probe, an upper movable cover plate (26) with the lower end hinged to a horizontal bent arm of a link arm (21) and in an L shape, front process grooves (27) which are vertically distributed on the front end face of a vertical plate of the upper movable cover plate (26), a pushing ejector rod (28) which is arranged on the lower end face of the upper movable cover plate (26), corresponds to the corresponding installation process groove (25) and is used for pushing the spring probe forward, a guide arc angle (29) which is arranged on a cantilever head of the pushing ejector rod (28) and is used for guiding the spring probe into the installation process groove (25), and a traction spring (30) which is arranged between the pushing ejector rod (28.

2. The DCDC power supply testing tool according to claim 1, wherein a workpiece positioning process concave table (31) for placing the DCDC power supply module is arranged on the bolt positioning pedestal (13), a longitudinal front groove (32) for placing a front probe (33) of the detecting device (6) is longitudinally arranged at the front end of the workpiece positioning process concave table (31), and a workpiece taking process groove (34) for taking out the front probe (33) is arranged below the longitudinal front groove (32).