CN104360220A - Traffic PCB control circuit board variable range online testing device - Google Patents
Traffic PCB control circuit board variable range online testing device Download PDFInfo
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- CN104360220A CN104360220A CN201410673328.XA CN201410673328A CN104360220A CN 104360220 A CN104360220 A CN 104360220A CN 201410673328 A CN201410673328 A CN 201410673328A CN 104360220 A CN104360220 A CN 104360220A
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Abstract
The invention discloses a traffic PCB control circuit board variable range online testing device which comprises a box body and a bottom cover which are assembled together. A voltage converter board is arranged in the box body, a groove used for installing traffic PCB control circuit boards to be tested is formed in the upper end face of a top plate of the box body, and a plurality of testing contacts corresponding to all power source input points of the traffic PCB control circuit boards to be tested in position are arranged on the bottom face of the groove. A plurality of testing probes corresponding to the testing contacts are arranged on the voltage converter board, the ends, located on the voltage converter board, of the testing probes are welded to the voltage output end of the voltage converter board, and the other ends of the testing probes are controlled to make contact with and separate from the testing contacts through a lifting mechanism arranged in the box body. The traffic PCB control circuit board variable range online testing device is easy to operate, can achieve the high-speed short circuit and open circuit tests of the traffic PCB control circuit boards and enables mass production cost to be more economical.
Description
Technical field
The present invention relates to technical field of traffic signal control, particularly a kind of device for testing traffic PCB control circuit serviceability index.
Background technology
PCB is in the electronics industry as one of material widely, how to reduce the failure rate of circuit board, improve the development that the quality of circuit board directly has influence on whole electron trade, particularly electronic traffic product, due to this series products be all mounted in open-air conditions under use, the quality of PCB had higher requirement.Therefore, the detection for traffic special PCB defect more seems most important.Based on the plug-in unit characteristic of traffic PCB control circuit board, workshop is the mode improving welding efficiency many employings wave-soldering, but needs to carry out an acceptance inspection to the product that dispatches from the factory after welding completes, and ensures product percent of pass.Usually adopt the display result of mode to traffic PCB control circuit board of artificial wiring plug-in one by one to test in quality check process, not only at substantial manpower and materials, and work efficiency are also comparatively low.
Summary of the invention
The technical issues that need to address of the present invention are to provide a kind of proving installation of traffic PCB control circuit board serviceability index of simple to operate, the job requirements that meets on-line checkingi, realize high speed short circuit and the open test of PCB control circuit board, order batch production cost is more economical.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows.
Traffic PCB control circuit board variable-distance online testing device, comprise casing equipped mutually and bottom, voltage transitions plate is provided with in described casing, the upper surface of roof box being provided with the groove for installing traffic PCB control circuit board to be measured, the bottom surface of groove being provided with the some test contacts corresponding to traffic PCB control circuit board each power supply input point position to be measured; Described voltage transitions plate is provided with the some test probes corresponding with test contact, test probe one end be positioned on voltage transitions plate is welded on the voltage output end of voltage transitions plate, the other end of test probe by the elevating mechanism be arranged in casing control with the contact of test contact be separated.
The concrete structure of described elevating mechanism is: described elevating mechanism comprises the lifter plate be horizontally installed on test probe, the center of lifter plate be provided with for test probe by and with the through hole of test probe interference fit, on lifter plate, the both sides of through hole arrange a nut respectively; On roof box, the both sides of test contact are provided with the control position screw be equipped with mutually with lifter plate top nut.
Improvement of the present invention is: the upper surface of described roof box is also provided with and leads to for treating test cross the right angle controller that PCB control circuit board carries out origin reference location.
Further improvement of the present invention is: the front panel of described casing is provided with ship type switch, waver, negative terminal and some positive terminals; Described ship type switch is connected in series between power lead and voltage transitions plate, and the voltage output end of voltage transitions plate is connected with negative terminal and positive terminal through waver respectively by wire.
The concrete structure of described voltage transitions plate is: described voltage transitions plate is the printed board being welded with step-down transformer, rectifier bridge, mu balanced circuit and direct current transformation circuit, the input end of described step-down transformer connects 220V AC power by ship type switch, the output terminal of step-down transformer connects and connects rectifier bridge and mu balanced circuit successively, and the output terminal of mu balanced circuit connects 3.3V direct current transformation circuit, 5V direct current transformation circuit, 6V direct current transformation circuit, 12V direct current transformation circuit, 24V direct current transformation circuit respectively through waver; The cathode output end of described each direct current transformation circuit connects to the corresponding positive terminal on wall box respectively.
Improvement of the present invention is also: each positive terminal respectively correspondence arranges a keyswitch and a luminotron.
Owing to have employed above technical scheme, the invention technological progress is as follows.
The present invention can according to the difference of traffic PCB control circuit board drive point relative position, by the design to test probe locus, realize the capture function of the power supply limit of traffic PCB control circuit board, observe its conduction property simultaneously, corresponding exchange type power can be selected by waver, by the locus of staff according to the model determination test probe of traffic PCB control circuit board, and can by correct the reading out of output measurement result of traffic pcb board, accurate searching electric short circuit or trip point, find out defect and reprocess, to ensure product percent of pass.The present invention can meet the factory testing of different types of traffic PCB control circuit board, makes the detection of traffic PCB control circuit board very loaded down with trivial details in online production process become very easy.
Accompanying drawing explanation
Fig. 1 is the vertical view of casing of the present invention;
Fig. 2 is the front view of casing of the present invention;
Fig. 3 is electrical schematic diagram of the present invention;
Fig. 4 is circuit structure diagram of the present invention.
Wherein: 1. casing, 2. right angle controller, 3. test contact, 4. waver, 5. positive terminal, the 6. public binding post of negative pole, 7. control position screw adjustment hole, 8. keyswitch, 9. ship type switch, and 10. insulate foot pad, 11. luminotrons.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further elaborated.
Traffic PCB control circuit board variable-distance online testing device, comprises casing 1 equipped mutually and bottom, and the edge of bottom is provided with insulation foot pad 10, for supporting box.
Casing is square box, is provided with voltage transitions plate in casing, and voltage transitions plate is fixed on bottom, for exporting test voltage.
The upper surface of roof box is test platform, and its structure as shown in Figure 1.Test platform is provided with groove, for installing traffic PCB control circuit board to be measured; The corner, side of test platform is also provided with right angle controller 2, leads to PCB control circuit board carry out origin reference location for treating test cross.
Be provided with some test contacts 3 at the bottom of test platform upper groove, these test contacts are corresponding to traffic PCB control circuit board each power supply input point position to be measured.The concrete structure of test contact is the pin hole be opened in groove-bottom in the present invention.
Voltage transitions plate is provided with some test probes, and test probe is corresponding one by one with pin hole (test contact), and test probe is arranged perpendicular to top board.During test, the top of test probe contacts with the power supply input point of PCB control circuit board through after pin hole.Wherein two test probes are one group, and a test probe connects test voltage positive pole, and another connects test voltage negative pole, the both positive and negative polarity access power supply of these two corresponding traffic PCB control circuit boards to be measured of test probes difference.
Test probe one end be positioned on voltage transitions plate is welded on the voltage output end of voltage transitions plate, the other end of test probe by the elevating mechanism be arranged in casing control with the contact of test contact be separated, namely longitudinal up-down adjustment can be carried out in the top of test probe under the control of elevating mechanism in casing.During test, according to tested PCB control circuit board, a pair required test probe is adjusted to the position of the above 10mm of groove floor, all the other unwanted probes, are adjusted to below top board.
Elevating mechanism comprises the lifter plate be horizontally installed on test probe, the center of lifter plate be provided with for test probe by and with the through hole of test probe interference fit, on lifter plate, the both sides of through hole arrange a nut respectively; On roof box, the both sides of test contact are provided with the control position screw be equipped with mutually with lifter plate top nut.In the present embodiment, lifter plate is length breadth ratio 1cm × 2cm thickness is the insulcrete of 3mm, the top distance insulcrete 25mm place welding of test probe; Nut selects M5 nut, and control position screw selects φ 5 to control position screw; Top board offers the control position screw adjustment hole 7 of φ 5, pass for control position screw.
In the present invention casing front panel on be also provided with ship type switch 9, waver 4, negative terminal 6 and some positive terminals 5, keyswitch 8 and luminotron 11, as shown in Figure 2.Ship type switch is connected in series between power lead and voltage transitions plate, the voltage output end of voltage transitions plate is connected with negative terminal and positive terminal through waver respectively by wire, each positive terminal is a corresponding keyswitch and a luminotron respectively, keyswitch is used for control voltage and exports, whether luminotron is used for showing the output information of PCB control circuit board to be measured, namely normally show the voltage detecting point of PCB control circuit board to be measured.
Voltage transitions plate is the printed board being welded with step-down transformer, rectifier bridge, mu balanced circuit and direct current transformation circuit, wherein the input end of step-down transformer connects 220V AC power by ship type switch, the output terminal of step-down transformer connects and connects rectifier bridge and mu balanced circuit successively, and the output terminal of mu balanced circuit connects 3.3V direct current transformation circuit, 5V direct current transformation circuit, 6V direct current transformation circuit, 12V direct current transformation circuit, 24V direct current transformation circuit respectively through waver; The cathode output end of described each direct current transformation circuit connects to the corresponding positive terminal on wall box respectively.As shown in Figure 3, circuit structure diagram as shown in Figure 4 for electrical schematic diagram of the present invention.
Arrange seven voltages in the present invention altogether when being be respectively 3V, 5V, 6V, 12V, 24V, 36V and 72V, wherein 36V and 72V gear is no more than 24V and vacant because of the supply voltage of traffic PCB control circuit board.Therefore the maximum output voltage of voltage transitions plate is 24V, and rated current is about 20mA.
PCB control circuit board to be measured in use, is first placed in the groove of roof box by the present invention, and is positioned by the benchmark of right angle controller to PCB control circuit board to be measured.Secondly, access 220V power supply, opens ship type switch, 220V power supply is converted to 29V alternating current through step-down transformer, alternating current is become about 24V DC voltage through full-wave rectification by rectifier bridge, and 24V DC voltage passes through the adjustable positive voltage voltage stabilizer of three ends, the direct current 24V/20mA power supply of stable output; 24V DC voltage accesses the direct current transformation circuit of four LM78 series voltage stabilizer compositions respectively, and the constant voltage DC that can obtain 5V, 6V, 12V, 24V exports; The direct current transformation circuit that 4V DC voltage access LM317 voltage stabilizer is formed, can obtain 3V direct current and export.Then the electric pressure determination test probe detected is needed according to PCB control circuit board to be measured, by regulating in elevating mechanism the position controlling position screw, used test is stretched forward to stretch out the power input close contact of roof box and PCB control circuit board to be measured, and make the test probe without the need to use fall into below top board.Subsequently, by rotating corresponding waver, test circuit is connected can be tested PCB control circuit board to be measured.
In test process, if luminotron is lighted, illustrate that PCB control circuit board to be measured is qualified; If luminotron does not work, then illustrate that PCB control circuit board to be measured is defective.
Claims (6)
1. traffic PCB control circuit board variable-distance online testing device, it is characterized in that: comprise casing (1) equipped mutually and bottom, voltage transitions plate is provided with in described casing, the upper surface of roof box being provided with the groove for installing traffic PCB control circuit board to be measured, the bottom surface of groove being provided with the some test contacts (3) corresponding to traffic PCB control circuit board each power supply input point position to be measured; Described voltage transitions plate is provided with the some test probes corresponding with test contact, test probe one end be positioned on voltage transitions plate is welded on the voltage output end of voltage transitions plate, the other end of test probe by the elevating mechanism be arranged in casing control with the contact of test contact be separated.
2. traffic PCB control circuit board variable-distance online testing device according to claim 1, it is characterized in that: described elevating mechanism comprises the lifter plate be horizontally installed on test probe, the center of lifter plate be provided with for test probe by and with the through hole of test probe interference fit, on lifter plate, the both sides of through hole arrange a nut respectively; On roof box, the both sides of test contact are provided with the control position screw be equipped with mutually with lifter plate top nut.
3. traffic PCB control circuit board variable-distance online testing device according to claim 1, is characterized in that: the upper surface of described roof box is also provided with and leads to for treating test cross the right angle controller (2) that PCB control circuit board carries out origin reference location.
4. traffic PCB control circuit board variable-distance online testing device according to claim 1, is characterized in that: the front panel of described casing is provided with ship type switch, waver, negative terminal and some positive terminals; Described ship type switch is connected in series between power lead and voltage transitions plate, and the voltage output end of voltage transitions plate is connected with negative terminal and positive terminal through waver respectively by wire.
5. traffic PCB control circuit board variable-distance online testing device according to claim 4, it is characterized in that: described voltage transitions plate is for being welded with step-down transformer, rectifier bridge, the printed board of mu balanced circuit and direct current transformation circuit, the input end of described step-down transformer connects 220V AC power by ship type switch, the output terminal of step-down transformer connects and connects rectifier bridge and mu balanced circuit successively, the output terminal of mu balanced circuit connects 3.3V direct current transformation circuit respectively through waver, 5V direct current transformation circuit, 6V direct current transformation circuit, 12V direct current transformation circuit, 24V direct current transformation circuit, the cathode output end of described each direct current transformation circuit connects to the corresponding positive terminal on wall box respectively.
6. traffic PCB control circuit board variable-distance online testing device according to claim 4, is characterized in that: each positive terminal respectively correspondence arranges a keyswitch and a luminotron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410673328.XA CN104360220A (en) | 2014-11-23 | 2014-11-23 | Traffic PCB control circuit board variable range online testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410673328.XA CN104360220A (en) | 2014-11-23 | 2014-11-23 | Traffic PCB control circuit board variable range online testing device |
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| Publication Number | Publication Date |
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| CN104360220A true CN104360220A (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410673328.XA Pending CN104360220A (en) | 2014-11-23 | 2014-11-23 | Traffic PCB control circuit board variable range online testing device |
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| CN (1) | CN104360220A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107660074A (en) * | 2016-07-26 | 2018-02-02 | 佛山市顺德区美的电热电器制造有限公司 | Circuit board, circuit board with battery, manufacturing method of circuit board with battery and household appliance |
| CN112946459A (en) * | 2021-02-26 | 2021-06-11 | 天津中德应用技术大学 | Device and method for detecting short-circuit fault point of finished printed circuit board |
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| CN102062789A (en) * | 2010-12-09 | 2011-05-18 | 深南电路有限公司 | PCB (Printed Circuit Board) insulation resistance testing jig |
| CN202351358U (en) * | 2011-10-17 | 2012-07-25 | 中国电力科学研究院 | On-line testing device of PCB (printed circuit board) of electric energy meter |
| CN102736018A (en) * | 2012-06-29 | 2012-10-17 | 昆山迈致治具科技有限公司 | Printed circuit board (PCB) test tool |
| CN103412165A (en) * | 2013-07-24 | 2013-11-27 | 昆山迈致治具科技有限公司 | Testing jig for testing mobile phone PCB pin point conduction |
| CN104142454A (en) * | 2014-08-26 | 2014-11-12 | 昆山迈致治具科技有限公司 | PCB testing device |
| CN204177905U (en) * | 2014-11-23 | 2015-02-25 | 保定维特瑞交通设施工程有限责任公司 | Traffic PCB control circuit board variable-distance online testing device |
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2014
- 2014-11-23 CN CN201410673328.XA patent/CN104360220A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020070741A1 (en) * | 2000-12-13 | 2002-06-13 | Siew Ying Choy | Test fixture assembly for printed circuit boards |
| CN102062789A (en) * | 2010-12-09 | 2011-05-18 | 深南电路有限公司 | PCB (Printed Circuit Board) insulation resistance testing jig |
| CN202351358U (en) * | 2011-10-17 | 2012-07-25 | 中国电力科学研究院 | On-line testing device of PCB (printed circuit board) of electric energy meter |
| CN102736018A (en) * | 2012-06-29 | 2012-10-17 | 昆山迈致治具科技有限公司 | Printed circuit board (PCB) test tool |
| CN103412165A (en) * | 2013-07-24 | 2013-11-27 | 昆山迈致治具科技有限公司 | Testing jig for testing mobile phone PCB pin point conduction |
| CN104142454A (en) * | 2014-08-26 | 2014-11-12 | 昆山迈致治具科技有限公司 | PCB testing device |
| CN204177905U (en) * | 2014-11-23 | 2015-02-25 | 保定维特瑞交通设施工程有限责任公司 | Traffic PCB control circuit board variable-distance online testing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107660074A (en) * | 2016-07-26 | 2018-02-02 | 佛山市顺德区美的电热电器制造有限公司 | Circuit board, circuit board with battery, manufacturing method of circuit board with battery and household appliance |
| CN112946459A (en) * | 2021-02-26 | 2021-06-11 | 天津中德应用技术大学 | Device and method for detecting short-circuit fault point of finished printed circuit board |
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Application publication date: 20150218 |
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