CN102081125A - Integrated test system for PTC (Positive Temperature Coefficient) resettable fuse - Google Patents
Integrated test system for PTC (Positive Temperature Coefficient) resettable fuse Download PDFInfo
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- CN102081125A CN102081125A CN2010105702534A CN201010570253A CN102081125A CN 102081125 A CN102081125 A CN 102081125A CN 2010105702534 A CN2010105702534 A CN 2010105702534A CN 201010570253 A CN201010570253 A CN 201010570253A CN 102081125 A CN102081125 A CN 102081125A
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Abstract
The invention discloses an integrated test system for a PTC (Positive Temperature Coefficient) resettable fuse, which comprises an alternating current input interface, an alternating current power supply, a direct current power supply, an action time test module, an inaction time test module, a voltage withstanding life test module, an industrial frequency impact resistance test module, a voltage instrument, a current instrument, a resistance instrument, a relay, a computer, a GPIB (General Purpose Interface Bus) card and an I/O (Input/Output) card, wherein the computer transmits an on-off control instruction to the relay through the I/O card; the relay is switched on or off to generate various test conditions of a PTC resettable fuse; the voltage instrument, current instrument and resistance instrument acquire voltage, current and resistance data of each test module; and the GPIB card is inserted into the computer to carry out data processing so as to obtain a test result. The system disclosed by the invention finishes the integrated test on the PTC resettable fuse, electronically records the test result and obviously improves the test efficiency.
Description
Technical field
The present invention relates to electronic applications, relate in particular to a kind of PTC resettable fuse integrated test system.
Background technology
The PTC resettable fuse becomes the PTC thermistor again, is a kind of thermistor of positive temperature coefficient (PTC), is usually used in using as recovering fuse in the overload protecting circuit, thereby gains the name.
In the production of PTC resettable fuse, need be to the zero power resistance of PTC resettable fuse, actuation time, be failure to actuate the time, withstand voltage and life-span, projects such as anti-power frequency impact are tested and are tested, past one is to being to carry out simple function test on different equipment, in the time of most by manual record, caused test like this to same product, to between different testing apparatuss, assemble, be provided with, test, record, dismounting, inefficiency, labor intensive, and manual record also is not easy to test result is carried out statistics and analysis, and also inconvenient enterprise carries out information system management.
Chinese invention patent application number: disclose a kind of PTC thermistor zero power voltage effect Auto-Test System in the patent application document for " 03128279.2 ", after the output voltage rectification of program control transformer, through modulation reshaping, form the alternation pulse and stress on the PTCR; Computing machine is controlled program control transformer, current gain branch road and voltage gain branch road, data acquisition module divides above-mentioned voltage gain branch road of two-way synchronized sampling and current gain branch road, obtain the sampled value of test voltage and electric current, and send into computing machine by interface module and carry out the data analysis processing; Computing machine is realized intensification and the insulation of PTCR by the temperature in temperature regulating device control, collection and the feedback electric furnace; This system also is provided with protection, warning circuit.
Though above-mentioned patent disclosure a kind of PTC thermistor zero power voltage effect Auto-Test System, but this system does not test and tests projects such as actuation time of PTC, the time of being failure to actuate, withstand voltage and life-span, anti-power frequency impacts, does not meet the needs of actual test.
Summary of the invention
The technical matters that the present invention mainly solves provides the integrated test system that projects such as a kind of zero power resistance to the PTC resettable fuse, actuation time, the time of being failure to actuate, withstand voltage and life-span, anti-power frequency impact are carried out integration test, and test result under the electronical record, make things convenient for enterprise to carry out information system management.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of PTC resettable fuse integrated test system is provided, comprise the alternating current input interface, be used to test macro that the AC power of alternating current is provided, be used to test macro that galvanic direct supply is provided, actuation time test module, the time test module of being failure to actuate, withstand voltage life test module, anti-power frequency shock-testing module, the voltage instrument, current instrument, the resistance instrument, the relay that is used for the break-make power supply, be used to control computing machine with data processing, GPIB card and I/O card, described AC power and direct supply are electrically connected with the alternating current input interface; Described GPIB card one end is electrically connected with computing machine and communication, and the GPIB card other end is with voltage instrument and current instrument and the resistance instrument is electrically connected and communication; I/O card one end is electrically connected with computing machine and communication, and the I/O card other end is electrically connected with relay and communication; The voltage instrument with actuation time test module, the time test module of being failure to actuate, withstand voltage life test module and anti-power frequency shock-testing module be electrically connected respectively; Current instrument with actuation time test module, the time test module of being failure to actuate, withstand voltage life test module and anti-power frequency shock-testing module be electrically connected respectively; The resistance instrument with actuation time test module, the time test module of being failure to actuate, withstand voltage life test module and anti-power frequency shock-testing module be electrically connected respectively; Computing machine sends the break-make steering order by the I/O card to relay, relay on-off produces each test condition of PTC resettable fuse, voltage, electric current and the resistance data of voltage instrument, current instrument and resistance instrument to collect test module actuation time, the time test module of being failure to actuate, withstand voltage life test module and anti-power frequency shock-testing module, send into computing machine by the GPIB card and carry out data processing, obtain test result.
Wherein, described system comprises the fan that is used for PTC resettable fuse integrated test system heat radiation, and described fan is electrically connected with the alternating current input interface, starts when the alternating current input interface has electricity detecting.
Wherein, described system comprises the pilot lamp that the duty that is used to PTC resettable fuse integrated test system is indicated, and described pilot lamp is electrically connected with the alternating current input interface, starts when the alternating current input interface has electricity detecting.
Wherein, described system comprises the isolating switch of the short-circuit protection that is used to get an electric shock, and described isolating switch is electrically connected with the alternating current input interface, and described isolating switch places the front-end circuit of AC power and direct supply.
Wherein, described system comprises and is used for the network interface that is connected with network that described network interface is electrically connected with computing machine and communication.
The invention has the beneficial effects as follows: be different from the PTC resettable fuse of prior art zero power resistance, actuation time, the time of being failure to actuate, withstand voltagely on different equipment, separate the defective that testing efficiency lowly writes down inconvenience with projects such as life-span, anti-power frequency impacts, PTC resettable fuse integrated test system of the present invention is carried out integration test to projects such as the zero power resistance of PTC resettable fuse, actuation time, the time of being failure to actuate, withstand voltage and life-span, anti-power frequency impacts, and test result under the electronical record, significantly improve testing efficiency.
Description of drawings
Fig. 1 is a PTC resettable fuse integrated test system example structure block scheme of the present invention;
Fig. 2 is a PTC resettable fuse integrated test system embodiment circuit connection diagram of the present invention.
Embodiment
By describing technology contents of the present invention, structural attitude in detail, realized purpose and effect, give explanation below in conjunction with embodiment and conjunction with figs. are detailed.
PTC resettable fuse basic parameter is parameters such as zero power resistance, action current, actuation time again.
Wherein zero power resistance is defined as: zero power resistance is meant when measuring PTC resettable fuse value under a certain temperature, the power consumption that is added on the PTC resettable fuse is extremely low, hangs down and can ignore to the change in resistance of the PTC resettable fuse that causes because of its power consumption.
Wherein action current is defined as: flow through the electric current of PTC resettable fuse, be enough to make the temperature rise of PTC resettable fuse self-heating to surpass Curie temperature, such electric current is called action current.
Wherein be defined as actuation time: under 25 ℃ of conditions of environment, add an initial current (assurance is an action current) for the PTC resettable fuse, the time that the electric current by the PTC resettable fuse is reduced to 50% o'clock experience of initial current is exactly actuation time.
The English of GPIB is (General-Purpose Interface Bus), and the Chinese meaning is general purpose interface bus, and it comprises the agreement that a kind of Engineering Control is used.We use a computing machine, by the GPIB control card can realize with one or more instrument listen, say, control function, and form instrument system, our test and surveying work are become fast, easy, accurately and efficiently.By the connection of GPIB cable, can realize star-like combination, line style combination or the combination of the two easily.When realizing instrument system, controlled instrument and equipment will be supported the GPIB agreement, and computing machine need install the IEEE488 card, and connects controlled instrument and equipment by the GPIB line.
See also Fig. 1 and Fig. 2, PTC resettable fuse integrated test system of the present invention, comprise alternating current input interface 10, be used to test macro that the AC power 11 of alternating current is provided, be used to test macro that galvanic direct supply 12 is provided, actuation time, test module 13, the time test module 14 of being failure to actuate, withstand voltage life test module 15, anti-power frequency shock-testing module 16, voltage instrument 17, current instrument 18, resistance instrument 19, the relay 20 that is used for the break-make power supply, be used to control computing machine 21 with data processing, GPIB card 22 and I/O card 23, described AC power 11 and direct supply 12 are electrically connected with alternating current input interface 10; Described GPIB card 22 1 ends are electrically connected with computing machine 21 and communication, and GPIB card 22 other ends are with voltage instrument 17 and current instrument 18 and resistance instrument 19 is electrically connected and communication; I/O card 23 1 ends are electrically connected with computing machine 21 and communication, and I/O card 23 other ends are electrically connected with relay 20 and communication; Voltage instrument 17 with actuation time test module 13, the time test module 14 of being failure to actuate, withstand voltage life test module 15 and anti-power frequency shock-testing module 16 be electrically connected respectively; Current instrument 18 with actuation time test module 13, the time test module 14 of being failure to actuate, withstand voltage life test module 15 and anti-power frequency shock-testing module be electrically connected respectively; Resistance instrument 19 with actuation time test module 13, the time test module 14 of being failure to actuate, withstand voltage life test module 15 and anti-power frequency shock-testing module 16 be electrically connected respectively; Computing machine 21 sends the break-make steering order by I/O card 23 to relay 20, relay 20 break-makes produce each test condition of PTC resettable fuse, voltage, electric current and the resistance data of voltage instrument 17, current instrument 18 and resistance instrument 19 collection test modules actuation time 13, the time test module 14 of being failure to actuate, withstand voltage life test module 15 and anti-power frequency shock-testing module 16, send into computing machine 21 by GPIB card 22 and carry out data processing, obtain test result.Above-mentioned computing machine is generally industrial control computer.
Be different from the PTC resettable fuse of prior art zero power resistance, actuation time, the time of being failure to actuate, withstand voltagely on different equipment, separate the defective that testing efficiency lowly writes down inconvenience with projects such as life-span, anti-power frequency impacts, PTC resettable fuse integrated test system of the present invention is carried out integration test to projects such as the zero power resistance of PTC resettable fuse, actuation time, the time of being failure to actuate, withstand voltage and life-span, anti-power frequency impacts, and test result under the electronical record, significantly improve testing efficiency.
Referring to Fig. 2, principle of work of the present invention is: the present invention mainly is made up of the Estimate of Resistance for DC Low Resistance test instrumentation of the voltage/current test instrumentation of computing machine, tool GPIB communication interface, tool GPIB communication interface, plurality of specifications power supply, relay control logic, PTC resettable fuse testing making apparatus etc.When testing, earlier PTC resettable fuse to be tested is installed on the testing making apparatus, at input product type on the industrial computer with after testing quantity, startup test, computing machine will extract dependence test automatically according to product type data are set from database, comprise information such as power supply specification, instrument range, sequence of movement, steering logic, result data interval, automatically finish test then, show test process and test result is stored.
In one embodiment, described system comprises the fan that is used for PTC resettable fuse integrated test system heat radiation, and described fan is electrically connected with the alternating current input interface, starts when the alternating current input interface has electricity detecting.Fan is installed on the test macro equipment, is used for the electronic component of test macro device interior is carried out wind-cooling heat dissipating.
In one embodiment, described system comprises the pilot lamp that the duty that is used to PTC resettable fuse integrated test system is indicated, and described pilot lamp is electrically connected with the alternating current input interface, starts when the alternating current input interface has electricity detecting.Utilize pilot lamp to carry out the work indication to test macro of the present invention, pilot lamp can be provided with a plurality of, the test mode of the corresponding a kind of test module of each pilot lamp.
In one embodiment, described system comprises the isolating switch of the short-circuit protection that is used to get an electric shock, and described isolating switch is electrically connected with the alternating current input interface, and described isolating switch places the front-end circuit of AC power and direct supply.Isolating switch is a kind of safety element, is used to protect tester's safety, when failed shorted or electric shock generation, disconnects input AC.
The present invention is in the production of PTC resettable fuse, need be to the zero power resistance of PTC resettable fuse, actuation time, be failure to actuate the time, withstand voltage and life-span, projects such as anti-power frequency impact are tested and are tested, past one is to being to carry out simple function test on different equipment, in the time of most by manual record, caused test like this to same product, to between different testing apparatuss, assemble, be provided with, test, record, dismounting, inefficiency, labor intensive, and manual record also is not easy to test result is carried out statistics and analysis, and also inconvenient enterprise carries out information system management.PTC resettable fuse integrated test system overcome above-mentioned defective just, have an equipment can carry out characteristics such as multinomial test, comprehensive effectiveness height, robotization and information-based function are strong simultaneously.After the present invention's design is finished,, reached purpose of design, improved testing efficiency, the robotization and the level of IT application that improves enterprise had positive effect from using result of use.
In one embodiment, described system comprises and is used for the network interface 24 that is connected with network that described network interface 24 is electrically connected with computing machine 21 and communication.Above-mentioned network interface 24 can be the intranet network interface, also can be the Wide Area Network interface.The present invention can test and test projects such as the zero power resistance of PTC resettable fuse, actuation time, the time of being failure to actuate, withstand voltage and life-span, anti-power frequency impacts, can write down, add up, analyze experimental result and data, and utilize the network interface communication and by Network Transmission experimental result data is sent into intranet, thereby the company ERP system of including in is carried out unified management.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes instructions of the present invention and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (5)
1. PTC resettable fuse integrated test system, it is characterized in that: comprise the alternating current input interface, be used to test macro that the AC power of alternating current is provided, be used to test macro that galvanic direct supply is provided, actuation time test module, the time test module of being failure to actuate, withstand voltage life test module, anti-power frequency shock-testing module, the voltage instrument, current instrument, the resistance instrument, the relay that is used for the break-make power supply, be used to control computing machine with data processing, GPIB card and I/O card, described AC power and direct supply are electrically connected with the alternating current input interface;
Described GPIB card one end is electrically connected with computing machine and communication, and the GPIB card other end is with voltage instrument and current instrument and the resistance instrument is electrically connected and communication; I/O card one end is electrically connected with computing machine and communication, and the I/O card other end is electrically connected with relay and communication; The voltage instrument with actuation time test module, the time test module of being failure to actuate, withstand voltage life test module and anti-power frequency shock-testing module be electrically connected respectively; Current instrument with actuation time test module, the time test module of being failure to actuate, withstand voltage life test module and anti-power frequency shock-testing module be electrically connected respectively; The resistance instrument with actuation time test module, the time test module of being failure to actuate, withstand voltage life test module and anti-power frequency shock-testing module be electrically connected respectively;
Computing machine sends the break-make steering order by the I/O card to relay, relay on-off produces each test condition of PTC resettable fuse, voltage, electric current and the resistance data of voltage instrument, current instrument and resistance instrument to collect test module actuation time, the time test module of being failure to actuate, withstand voltage life test module and anti-power frequency shock-testing module, send into computing machine by the GPIB card and carry out data processing, obtain test result.
2. PTC resettable fuse integrated test system according to claim 1, it is characterized in that: described system comprises the fan that is used for the heat radiation of PTC resettable fuse integrated test system, described fan is electrically connected with the alternating current input interface, starts when the alternating current input interface has electricity detecting.
3. PTC resettable fuse integrated test system according to claim 2, it is characterized in that: described system comprises the pilot lamp that the duty that is used to PTC resettable fuse integrated test system is indicated, described pilot lamp is electrically connected with the alternating current input interface, starts when the alternating current input interface has electricity detecting.
4. PTC resettable fuse integrated test system according to claim 3; it is characterized in that: described system comprises the isolating switch of the short-circuit protection that is used to get an electric shock; described isolating switch is electrically connected with the alternating current input interface, and described isolating switch places the front-end circuit of AC power and direct supply.
5. PTC resettable fuse integrated test system according to claim 4 is characterized in that: described system comprises and is used for the network interface that is connected with network that described network interface is electrically connected with computing machine and communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105702534A CN102081125A (en) | 2010-12-02 | 2010-12-02 | Integrated test system for PTC (Positive Temperature Coefficient) resettable fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105702534A CN102081125A (en) | 2010-12-02 | 2010-12-02 | Integrated test system for PTC (Positive Temperature Coefficient) resettable fuse |
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| CN102081125A true CN102081125A (en) | 2011-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105702534A Pending CN102081125A (en) | 2010-12-02 | 2010-12-02 | Integrated test system for PTC (Positive Temperature Coefficient) resettable fuse |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621420A (en) * | 2012-03-28 | 2012-08-01 | 奇瑞汽车股份有限公司 | Portable off-line testing device for junction box |
| CN105954663A (en) * | 2016-03-03 | 2016-09-21 | 中国电力科学研究院 | Transient diode power frequency current impact automation test system |
| CN109313229A (en) * | 2016-06-20 | 2019-02-05 | 伊顿智能动力有限公司 | For detecting the monitoring system and method for the thermomechanical strain fatigue in electrical fuse |
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| CN1477402A (en) * | 2003-07-04 | 2004-02-25 | 华中科技大学 | PTC thermistor zero-power voltage effect automatic testing system |
| CN1793993A (en) * | 2006-01-11 | 2006-06-28 | 浙江大学 | Fast detection device for polymer PTC component element long period electric aging test |
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2010
- 2010-12-02 CN CN2010105702534A patent/CN102081125A/en active Pending
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| CN1477402A (en) * | 2003-07-04 | 2004-02-25 | 华中科技大学 | PTC thermistor zero-power voltage effect automatic testing system |
| CN1793993A (en) * | 2006-01-11 | 2006-06-28 | 浙江大学 | Fast detection device for polymer PTC component element long period electric aging test |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621420A (en) * | 2012-03-28 | 2012-08-01 | 奇瑞汽车股份有限公司 | Portable off-line testing device for junction box |
| CN105954663A (en) * | 2016-03-03 | 2016-09-21 | 中国电力科学研究院 | Transient diode power frequency current impact automation test system |
| CN109313229A (en) * | 2016-06-20 | 2019-02-05 | 伊顿智能动力有限公司 | For detecting the monitoring system and method for the thermomechanical strain fatigue in electrical fuse |
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Application publication date: 20110601 |