CN103513192A - Switch starting life test circuit and lamp - Google Patents
Switch starting life test circuit and lamp Download PDFInfo
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- CN103513192A CN103513192A CN201210215142.0A CN201210215142A CN103513192A CN 103513192 A CN103513192 A CN 103513192A CN 201210215142 A CN201210215142 A CN 201210215142A CN 103513192 A CN103513192 A CN 103513192A
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Abstract
The invention belongs to the product detection and test field and provides a switch starting life test circuit which is suitable for a lamp. The switch starting life test circuit comprises a timekeeping control unit, a timing control unit, a first switch unit and a second switch unit. The timekeeping control unit controls the first switch unit so as to control starting or closing of the timing control unit or accelerate electricity work time of a life circuit of a tested product. The timing control unit controls the second switch unit so as to control starting or closing of a driving board to be tested. In the circuit, the timekeeping control unit is used to set and accelerate the electricity work time of the life circuit of the tested product and the timing control unit is used to set conduction time and power-off time of the driving board to be tested so as to achieve a circuit which can automatically control and detect a product life. A manual test is not needed. A manual workload is reduced and test efficiency and accuracy of test data are guaranteed.
Description
Technical field
The invention belongs to product and detect and field tests, relate in particular to product accelerated aging field tests.
Background technology
At the society of development in science and technology, the high stability of product is the common target of pursuing of manufacturer, dealer and product user.Take light fixture product as example, LED light source application as novel energy-saving environment-friendly is also more and more, so not only just the life-span of LED need to meet request for utilization, and require the serviceable life of drive plate is also very high, can embody like this reliability of product integral body.Therefore, also will estimate prediction to the life-span of the drive plate circuit of light fixture interiors of products, especially the surge current in carrying out switch activated process is particularly serious on the life-span impact of drive plate.
At present, for the guarantee time limit that guarantees that manufacturer promises to undertake client, carry out in test process, by driving according to the mode of normal delivery, be assembled to and in light fixture, form complete product, then detect the temperature of device on drive plate, according to device temperature, the temperature that needs acceleration is set again, at this temperature, carries out accelerated aging test.But due to life-span of dissimilar light fixture product and the guarantee time limit of inferring all different according to acceleration time and switch activated number of times, like this can not be with manually light fixture product being carried out to moment monitoring, or carry out automanual system control for the test light fixture product of inferring the life-span, the detected temperatures of intermittent is accelerated again, or switch activated by manually carrying out, these processing modes are very waste of manpower and material resources all, not only affected work efficiency, error rate is also high, once make mistakes, the guarantee time limit that client the is promised to undertake existing problems of manufacturer, not only grievous injury prestige and the economic loss of manufacturer, simultaneously follow-uply brought great inconvenience also to the user of product.
Summary of the invention
The object of the present invention is to provide the circuit in a kind of life-span of accelerated test product, solved the waste of manpower of existing product test technology, not only reduced work efficiency, and the high problem of error rate.
The problem existing for above-mentioned prior art, the invention provides a kind of switch activated life test circuit, for the life-span of a drive plate to be measured is tested, comprise the first ac supply signal input end and the second ac supply signal input end, the second switch unit that also comprises timing control module, timing control unit, is controlled by the first switch element of described timing control unit and is controlled by described timing control module;
Wherein, described timing control module is connected between the first ac supply signal input end and the second ac supply signal input end, second switch unit is connected to the first ac supply signal input end and described timing control unit, and be connected with the first switch element, described timing control unit is connected to the second ac supply signal input end, and described drive plate to be measured is connected between the first switch element and the second ac supply signal input end; And described timing control module is connected to second switch unit, and described timing control unit is connected to the first switch element; The electrical working time of drive plate is set and added up to test to described timing control module, described timing control unit is set single energising duration and the interruption duration of drive plate to be measured, and controls drive plate to be measured and with this energising duration and interruption duration, circulate and switch on and power-off in this electrical working time.
Preferably, described timing control unit comprises timing relay, comprise first signal input end and secondary signal input end, relay common port, relay normally open contact and relay normally closed contact, described timing relay is provided with the first delay time and the second delay time, wherein, the first delay time is corresponding with the conduction time of described drive plate to be measured, the second delay time is corresponding with the power-off time of described drive plate to be measured, first signal input end is connected to second switch unit, secondary signal input end is connected to the second ac supply signal input end, and
Described the first switch element comprises the first relay switch, and the first relay switch comprises the first inductance and normally closed switch; The first inductance is connected between described relay normally open contact and ground end, and normally closed switch is connected between first signal input end and described drive plate to be measured; With the electromagnetic induction phenomenon producing by the first inductance energising, power-off, control the on off state of described normally closed switch.
Preferably, described timing control module comprises described in hour totalizer, transformer, rectification circuit, mu balanced circuit that hour totalizer comprises the first working power input end, the second working power input end, start end, inner out-put supply end, output relay common port, output relay normally opened contact and output relay normally closed contact; Wherein, the first working power input end is connected to the first ac supply signal input end, the second working power input end is connected to the second ac supply signal input end, described transformer is connected with the second ac supply signal input end with the first ac supply signal input end, described rectification circuit is connected between described transformer and described mu balanced circuit, and described mu balanced circuit is connected to described output relay common port;
Second switch unit comprises the second relay switch, the second relay switch comprises the second inductance and the first normal open switch, for the electromagnetic induction phenomenon producing by the second inductance energising, power-off, control the on off state of the first normal open switch, the second inductance is connected between described output relay normally closed contact and ground end, the first normal open switch is connected between the first working power input end and first signal input end, and
Described timing control module also comprises the 3rd relay switch, the 3rd relay switch comprises the 3rd inductance and the second normal open switch, for the electromagnetic induction phenomenon producing by the 3rd inductance energising, power-off, control the on off state of the second normal open switch, the 3rd inductance is connected between described output relay common port and described output relay normally closed contact, and in parallel with described mu balanced circuit, the second normal open switch is connected between described start end and described inner out-put supply end.
Preferably, described rectification circuit is bridge heap, comprises two output terminals;
Described mu balanced circuit comprises resistance R 1, capacitor C ', capacitor C ' ', voltage stabilizing diode ZD1 and triode Q, wherein, one output terminal of bridge heap is connected to the collector of triode Q, another output terminal is connected to the positive pole of voltage stabilizing diode ZD1, the negative pole of voltage stabilizing diode ZD1 is connected to the base stage of triode Q, reference voltage is provided to the base stage of triode Q; Resistance R 1 is connected between the collector of triode Q and the negative pole of voltage stabilizing diode ZD1, plays metering function; Capacitor C ' connecting triode Q collector and and the positive pole of voltage stabilizing diode ZD1 between, capacitor C ' ' be connected between the emitter of triode Q and the positive pole of voltage stabilizing diode ZD1 capacitor C ' and capacitor C ' ' play filter action; The 3rd inductance is connected between the emitter of triode and the positive pole of voltage stabilizing diode ZD1, and the positive pole of voltage stabilizing diode ZD1 is connected to output relay normally closed contact, and the emitter of triode Q is connected to output relay common port; The second normal open switch is connected between described start end and described inner out-put supply end.
Preferably, described timing control module also comprises alarm, be connected between described output relay normally opened contact and ground end, after finishing for timing, the long closed contact of described output relay and described output relay common port disconnect, described output relay common port is connected with described output relay normally opened contact, so that the energising of described alarm is reported to the police.
Preferably; test circuit also comprises electrothermal relay; described electrothermal relay is connected between described drive plate to be measured and described normally closed switch; during for described drive plate overload to be measured; described electrothermal relay overcurrent heating is in open-circuit condition; the circuit of described drive plate to be measured connects also in open-circuit condition, to protect described drive plate to be measured.
The present invention also provides a kind of light fixture, comprise drive plate, and the switch activated life test circuit being connected with described drive plate, described switch activated life test circuit is used for testing described drive plate, wherein, described switch activated life test circuit comprises the first ac supply signal input end and the second ac supply signal input end, the second switch unit that also comprises timing control module, timing control unit, is controlled by the first switch element of described timing control unit and is controlled by described timing control module;
Wherein, described timing control module is connected between the first ac supply signal input end and the second ac supply signal input end, second switch unit is connected to the first ac supply signal input end and described timing control unit, and be connected with the first switch element, described timing control unit is connected to the second ac supply signal input end, and described drive plate to be measured is connected between the first switch element and the second ac supply signal input end; And described timing control module is connected to second switch unit, and described timing control unit is connected to the first switch element; The electrical working time of drive plate is set and added up to test to described timing control module, described timing control unit is set single energising duration and the interruption duration of drive plate to be measured, and controls drive plate to be measured and with this energising duration and interruption duration, circulate and switch on and power-off in this electrical working time.
Preferably, described timing control unit comprises timing relay, comprise first signal input end and secondary signal input end, relay common port, relay normally open contact and relay normally closed contact, described timing relay is provided with the first delay time and the second delay time, wherein, the first delay time is corresponding with the conduction time of described drive plate to be measured, the second delay time is corresponding with the power-off time of described drive plate to be measured, first signal input end is connected to second switch unit, secondary signal input end is connected to the second ac supply signal input end, and
Described the first switch element comprises the first relay switch, and the first relay switch comprises the first inductance and normally closed switch; The first inductance is connected between described relay normally open contact and ground end, and normally closed switch is connected between first signal input end and described drive plate to be measured; With the electromagnetic induction phenomenon producing by the first inductance energising, power-off, control the on off state of described normally closed switch.
Preferably, described timing control module comprises described in hour totalizer, transformer, rectification circuit, mu balanced circuit that hour totalizer comprises the first working power input end, the second working power input end, start end, inner out-put supply end, output relay common port, output relay normally opened contact and output relay normally closed contact; Wherein, the first working power input end is connected to the first ac supply signal input end, the second working power input end is connected to the second ac supply signal input end, described transformer is connected with the second ac supply signal input end with the first ac supply signal input end, described rectification circuit is connected between described transformer and described mu balanced circuit, and described mu balanced circuit is connected to described output relay common port;
Second switch unit comprises the second relay switch, the second relay switch comprises the second inductance and the first normal open switch, for the electromagnetic induction phenomenon producing by the second inductance energising, power-off, control the on off state of the first normal open switch, the second inductance is connected between described output relay normally closed contact and ground end, the first normal open switch is connected between the first working power input end and first signal input end, and
Described timing control module also comprises the 3rd relay switch, the 3rd relay switch comprises the 3rd inductance and the second normal open switch, for the electromagnetic induction phenomenon producing by the 3rd inductance energising, power-off, control the on off state of the second normal open switch, the 3rd inductance is connected between described output relay common port and described output relay normally closed contact, and in parallel with described mu balanced circuit, the second normal open switch is connected between described start end and described inner out-put supply end.
Preferably, described timing control module also comprises alarm, be connected between described output relay normally opened contact and ground end, after finishing for timing, the long closed contact of described output relay and described output relay common port disconnect, described output relay common port is connected with described output relay normally opened contact, so that the energising of described alarm is reported to the police.
The circuit in the life-span of accelerated test product provided by the invention, simple and reliable, be provided with timing control module and timing control unit, by timing control module, according to the test duration, control the first switch element being connected with timing control unit, to control the startup of described timing control unit or to close or the electrical working time of the circuit in life-span of accelerated test product, only need the artificial time of setting required test, just can reach without manual monitoring and automatically control the normal operation of test circuit and close, for required several times experiments of measuring of carrying out of accurate testing product life-span, reduced artificial workload, by described timing control unit, control described second switch unit simultaneously, with the startup of stepless control drive plate to be measured or close and also avoided manual operation, without regularly artificial and manual operation, control the time that works on power and the trip time of test product, product for same class different model, can free setting working time and power-off time, not only improve work efficiency, also promoted the accuracy rate that product accelerated aging detects.
Meanwhile, the alarm unit of setting continues according to the complete or described test product of test duration the parameter information that power-off time surpassed for the first non-working time, can give the alarm, and notifies tester to test end.The detection performance of further having optimized above-mentioned test circuit, has further improved testing efficiency.Power-off protection unit can also be according to the disarmed state of described test end mark position; recover each parameter information before described timing control module and timing control unit power-off; guarantee the accuracy of testing efficiency and test data, reduced tester's fatigue strength.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the systematic schematic diagram of the switch activated life test circuit of the embodiment of the present invention 1.
Fig. 2 is the circuit diagram of the switch activated life test circuit of the embodiment of the present invention 1.
Fig. 3 is the systematic schematic diagram that the light fixture of the embodiment of the present invention 2 comprises switch activated life test circuit.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
Embodiment 1
As shown in Fig. 1 ~ Fig. 2, referring to Fig. 1, the switch activated life test circuit 100 that the embodiment of the present invention provides, for the life-span of drive plate 150 to be measured is tested, comprise the first ac supply signal input end, the second ac supply signal input end, timing control module 110, timing control unit 120, the first switch element 130 and second switch unit 140.
Being described as follows of the circuit connecting relation of the switch activated life test circuit 100 providing for the present embodiment:
The first switch element 130, is controlled by timing control unit 120; Timing control unit 120, for setting the T1 and power-off time T2 conduction time of drive plate 150 to be measured, timing control unit 120 is connected to the second ac supply signal input end, and be connected to the first switch element 130, for controlling the on off state of the first switch element 130, to control the T1 and power-off time T2 conduction time of drive plate 150 to be measured, make drive plate 150 to be measured in the electrical working time of switch activated life test circuit 100, carry out the T1 and the circulation of power-off time T2 conduction time of drive plate 150 to be measured.
According to the circuit connecting relation of switch activated life test circuit 100, accelerated test principle is illustrated as follows:
First, timing control module 110 is set the test duration that needs accelerated test, is the electrical working time of switch activated life test circuit 100, and timing control unit 120 is set the T1 and power-off time T2 conduction time of drive plate 150 to be measured, then, start to power on, the timing control module 110 being connected between the first ac supply signal input end and the second ac supply signal input end works on power, start timing, and control second switch unit 140 in conducting state, make the second switch unit 140 that is connected to the first ac supply signal input end output current to timing control unit 120 and the first switch element 130, then, timing control unit 120 starts to power on, control the on off state of the first switch element 130, "on" position and off-position with the drive plate to be measured 150 of further control linkage to the first switch element 130, make drive plate 150 to be measured in the electrical working time of switch activated life test circuit 100, carry out T1 and the circulation of power-off time T2 conduction time, when arrive that timing control module 110 sets the test duration that needs accelerated test, timing finished time, timing control module 110 is controlled second switch unit 140 in off-state, so that timing control unit 120 and 140 power-off of second switch unit, finish test, to reach automatic control, detect the life-span function of drive plate 150 to be measured, not only improved work efficiency, also promoted the accuracy rate that detects 150 life-spans of drive plate to be measured.
Referring to Fig. 2, the timing control unit 120 of the present embodiment comprises timing relay 121, comprise first signal input end S1 and secondary signal input end S2, relay common port A1, relay normally open contact O1 and relay normally closed contact C1, timing relay 121 is set the first delay time and the second delay time, wherein, the first delay time is corresponding with T1 conduction time of drive plate 150 to be measured, and the second delay time is corresponding with the power-off time T2 of drive plate 150 to be measured.
The second switch unit 140 of the present embodiment is the second relay switch, the second relay switch 140 comprises the second inductance L 2 and the first normal open switch K2, the electromagnetic induction phenomenon producing by the second inductance L 2 energisings, power-off is controlled the on off state of the first normal open switch K2, the first normal open switch K2 under the second inductance L 2 no power states in off-state, otherwise in closure state.
The timing control module 110 of the present embodiment comprises that hour totalizer 111, transformer T, bridge heap 112(are rectification circuit), mu balanced circuit 113, the 3rd relay switch 114 and hummer 115.Wherein, hour totalizer 111 is for the electrical working time of configuration switch Start-up life test circuit 100, and it comprises the first working power input end V1, the second working power input end V2, start end B, inner out-put supply end V3, output relay common port A2, output relay normally opened contact O2 and output relay normally closed contact C2.The 3rd relay switch 114 comprises the 3rd inductance L 3 and the second normal open switch K3, the electromagnetic induction phenomenon producing by the 3rd inductance L 3 energisings, power-off is controlled the on off state of the second normal open switch K3, the second normal open switch K3 under the second inductance L 2 no power states in off-state, otherwise in closure state.
The switch activated life test circuit 100 of the present embodiment also can comprise electrothermal relay 160, and mu balanced circuit 113 comprises resistance R 1, capacitor C ', capacitor C ' ', voltage stabilizing diode ZD1 and triode Q, and bridge heap 112 comprises two output terminals.
The annexation of above-mentioned each components and parts is as follows:
In timing control module 110, the first working power input end V1 of hour totalizer 111 is connected to the first ac supply signal input end, the second working power input end V2 is connected to the second ac supply signal input end, transformer T is connected with the second ac supply signal input end with the first ac supply signal input end, with output LOW voltage AC signal.Bridge heap 112 is connected between transformer T and mu balanced circuit 113, and bridge heap 112 is converted to direct current signal by low-voltage AC signal, and mu balanced circuit 113 makes direct current signal more stable.Wherein, an output terminal of bridge heap 112 is connected to the collector of triode Q, and another output terminal is connected to the positive pole of voltage stabilizing diode ZD1, and the negative pole of voltage stabilizing diode ZD1 is connected to the base stage of triode Q, reference voltage is provided to the base stage of triode Q.Resistance R 1 is connected between the collector of triode Q and the negative pole of voltage stabilizing diode ZD1, plays metering function.Capacitor C ' connecting triode Q collector and and the positive pole of voltage stabilizing diode ZD1 between, capacitor C ' ' be connected between the emitter of triode Q and the positive pole of voltage stabilizing diode ZD1 capacitor C ' and capacitor C ' ' play filter action.The 3rd inductance L 3 is connected between the emitter of triode and the positive pole of voltage stabilizing diode ZD1, the positive pole of voltage stabilizing diode ZD1 is connected to the output relay normally closed contact C2 of hour totalizer 111, and the emitter of triode Q is connected to the output relay common port A2 of hour totalizer 111.The second normal open switch K3 is connected between the start end B of hour totalizer 111 and the inside out-put supply end V3 of hour totalizer 111, and hummer 115 is connected between the output relay normally opened contact O2 and ground end of hour totalizer 111.
The first normal open switch K2 is connected between the first ac supply signal input end and first signal input end S1, and the second inductance L 2 is connected between the output relay normally closed contact C2 and ground end of hour totalizer 111.
In timing control unit 120 and the first relay switch 130, the secondary signal input end S2 of timing relay 121 is connected to the second ac supply signal input end, the first inductance L 1 is connected between the relay normally open contact O1 and ground end of timing relay 121, and normally closed switch K1 is connected between first signal input end S1 and drive plate to be measured 150.And drive plate 150 to be measured is connected between the first switch and the second ac supply signal input end.
Wherein, during hour totalizer 111 power-off, its output relay normally closed contact C2 is connected with output relay common port A2, hour totalizer 111 is by the electrical working time of its parameter setting window configuration switch Start-up life test circuit 100, timing relay 121 is power-off delay relay, first sets its first delay time and the second delay time.After setting the above-mentioned time, start to power on to switch activated life test circuit 100, ac signal inputs to the first working power input end V1 and the second working power input end V2 of hour totalizer 111, electric signal is through transformer T simultaneously, bridge heap 112, after mu balanced circuit 113, being connected to the output relay common port A2 of hour totalizer 111 and the 3rd inductance L 3 between output relay normally closed contact C2 has electric current to pass through, the second normal open switch K3 in off-state is controlled by the induction field that the 3rd inductance L 3 produces, make the second normal open switch K3 closed, cause the start end B of hour totalizer 111 to be connected with inner out-put supply end V3, to start hour totalizer 111, start timing.Simultaneously, be connected to make in the first normal open switch K2 of normally open after the output relay normally closed contact C2 of hour totalizer 111 and the second inductance L 2 energising inductions between ground end closed, cause the first working power input end V1 and first signal input end S1 to be communicated with, so that timing relay 121 powers on, start working.
During timing relay 121 power-off, the relay common port A1 of timing relay 121 and relay normally open contact O1 disconnect, and relay common port A1 and relay normally closed contact C1 connect.Timing relay 121 powers on while starting working, the first inductance L 1 no current that is connected to normally opened contact passes through, the normally closed switch K1 in closure state is failure to actuate, and timing relay 121 starts to carry out the first delay time, and drive plate 150 energisings to be measured are in running order.When the first delay time finishes, relay common port A1 and relay normally closed contact C1 disconnect, connect with relay normally open contact O1, the first inductance L 1 that is connected to relay normally open contact O1 has electric current to pass through, normally closed switch K1 is controlled by the induced field that the first inductance L 1 produces, from closure state, convert off-state to, timing relay 121 starts to carry out the second delay time, and drive plate 150 no currents to be measured are passed through in off working state.When normally closed switch is closed, light fixture is in light fixture T1 conduction time corresponding to the first delay time, and when normally closed switch disconnects, light fixture is in light fixture power-off time T2 corresponding to the second delay time.When the second delay time finishes, relay common port A1 and relay normally open contact O1 disconnect, relay common port A1 and relay normally closed contact C1 connect, carry out again the first delay time, carry out according to this circulation of the first delay time and the second delay time, until the timing time that hour totalizer 111 is set finishes.When the timing time of hour totalizer 111 finishes, output relay common port A2 and output relay normally closed contact C2 disconnect, O2 is connected with output relay normally opened contact, the 3rd inductance L 3 that is connected to the long closed contact of output relay does not have electric current to pass through, the second normal open switch K3 is transformed into off-state from closure state, start end B and inner out-put supply end V3 disconnect relation, and hour totalizer 111 power-off are in operating conditions not.In like manner, the second inductance L 2 that is connected to the long closed contact of output relay does not have electric current to pass through, and first switch being connected with output relay normally closed contact C2 is transformed into off-state from closure state, and timing relay 121 power-off are in off working state.Meanwhile, hummer 115 energisings that are connected to output relay normally opened contact O2 are reported to the police, to notify tester to test end.
Electrothermal relay 160 is connected between drive plate 150 to be measured and normally closed switch K1, and while transshipping for light fixture product, electrothermal relay 160 overcurrent heatings, in open-circuit condition, cause drive plate 150 to be measured also in open-circuit condition, to protect drive plate 150 to be measured not damaged.
In the electrical working time of the switch activated life test circuit 100 that the present embodiment is set at hour totalizer 111, carry out the circulation of the first delay time and second delay time of timing relay 121, with lower implementation cost, reach the automatic detection function in 150 life-spans of drive plate to be measured, improved detection efficiency and the accuracy rate of drive plate 150 to be measured.The switch activated life test circuit 100 of the present embodiment also can be tested other products, detects principle the same, therefore do not repeat with other embodiment.
Wherein, the hour totalizer 111 that the present embodiment is selected is provided with accumulation function break time, after hour totalizer starting, start timing, when power-off or initiating signal disappearance, automatically preserve last timing time, next time is when start, timing time is cumulative on last time clocking value, the further perfect measuring ability in automatic acceleration detection 150 life-spans of drive plate to be measured.
In other embodiments, electrothermal relay 160 also can omit, and after omission, also can realize measuring ability, therefore do not provide explanation in the mode of embodiment at this.
Embodiment 2
As shown in Figure 3, the light fixture 300 that the embodiment of the present invention provides comprises: light fixture drive plate 350 to be measured, switch activated life test circuit 100.Wherein, switch activated life test circuit 100 comprises the first ac supply signal input end and the second ac supply signal input end, also comprises timing control module 110, timing control unit 120, is controlled by the first switch element 130 of described timing control unit 120 and the second switch unit 140 that is controlled by described timing control module 110.
Wherein, the switch activated life test circuit 100 being connected with light fixture drive plate 350 to be measured, for testing the life-span of light fixture drive plate 350 to be measured.
Light fixture drive plate 350 to be measured is connected between the first switch element 130 and the second ac supply signal input end.
The first switch element 130, is controlled by timing control unit 120; Timing control unit 120, for setting the T1 and power-off time T2 conduction time of light fixture drive plate 350 to be measured, timing control unit 120 is connected to the second ac supply signal input end, and be connected to the first switch element 130, for controlling the on off state of the first switch element 130, to control the T1 and power-off time T2 conduction time of light fixture drive plate 350 to be measured, make light fixture drive plate 350 to be measured in the electrical working time of switch activated life test circuit 100, carry out the T1 and the circulation of power-off time T2 conduction time of light fixture drive plate 350 to be measured.
According to the circuit connecting relation of switch activated life test circuit 100, accelerated test principle is illustrated as follows:
First, timing control module 110 is set the test duration that needs accelerated test, is the electrical working time of switch activated life test circuit 100, and timing control unit 120 is set the T1 and power-off time T2 conduction time of light fixture drive plate 350 to be measured, then, start to power on, the timing control module 110 being connected between the first ac supply signal input end and the second ac supply signal input end works on power, start timing, and control second switch unit 140 in conducting state, make the second switch unit 140 that is connected to the first ac supply signal input end output current to timing control unit 120 and the first switch element 130, then, timing control unit 120 starts to power on, control the on off state of the first switch element 130, "on" position and off-position with the light fixture drive plate 350 to be measured of further control linkage to the first switch element 130, make light fixture drive plate 350 to be measured in the electrical working time of switch activated life test circuit 100, carry out T1 and the circulation of power-off time T2 conduction time, when arrive that timing control module 110 sets the test duration that needs accelerated test, timing finished time, timing control module 110 is controlled second switch unit 140 in off-state, so that timing control unit 120 and 140 power-off of second switch unit, finish test, to reach automatic control, detect the life-span function of light fixture drive plate 350 to be measured, not only improved work efficiency, also promoted the accuracy rate that detects 350 life-spans of light fixture drive plate to be measured.
Particularly, realize the circuit structure diagram of the switch activated life test circuit 100 of the present embodiment and can consult Fig. 2, with Fig. 2, realize the switch activated life test circuit 100 of the present embodiment, therefore repeat no more its structure and function.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a switch activated life test circuit, for the life-span of a drive plate to be measured is tested, it is characterized in that, comprise the first ac supply signal input end and the second ac supply signal input end, the second switch unit that also comprises timing control module, timing control unit, is controlled by the first switch element of described timing control unit and is controlled by described timing control module;
Wherein, described timing control module is connected between the first ac supply signal input end and the second ac supply signal input end, second switch unit is connected to the first ac supply signal input end and described timing control unit, and be connected with the first switch element, described timing control unit is connected to the second ac supply signal input end, and described drive plate to be measured is connected between the first switch element and the second ac supply signal input end; And described timing control module is connected to second switch unit, and described timing control unit is connected to the first switch element; The electrical working time of drive plate is set and added up to test to described timing control module, described timing control unit is set single energising duration and the interruption duration of drive plate to be measured, and controls drive plate to be measured and with this energising duration and interruption duration, circulate and switch on and power-off in this electrical working time.
2. circuit according to claim 1, it is characterized in that, described timing control unit comprises timing relay, comprise first signal input end and secondary signal input end, relay common port, relay normally open contact and relay normally closed contact, described timing relay is provided with the first delay time and the second delay time, wherein, the first delay time is corresponding with the conduction time of described drive plate to be measured, the second delay time is corresponding with the power-off time of described drive plate to be measured, first signal input end is connected to second switch unit, secondary signal input end is connected to the second ac supply signal input end, and,
Described the first switch element comprises the first relay switch, and the first relay switch comprises the first inductance and normally closed switch; The first inductance is connected between described relay normally open contact and ground end, and normally closed switch is connected between first signal input end and described drive plate to be measured; With the electromagnetic induction phenomenon producing by the first inductance energising, power-off, control the on off state of described normally closed switch.
3. circuit according to claim 2, it is characterized in that, described timing control module comprises described in hour totalizer, transformer, rectification circuit, mu balanced circuit that hour totalizer comprises the first working power input end, the second working power input end, start end, inner out-put supply end, output relay common port, output relay normally opened contact and output relay normally closed contact; Wherein, the first working power input end is connected to the first ac supply signal input end, the second working power input end is connected to the second ac supply signal input end, described transformer is connected with the second ac supply signal input end with the first ac supply signal input end, described rectification circuit is connected between described transformer and described mu balanced circuit, and described mu balanced circuit is connected to described output relay common port;
Second switch unit comprises the second relay switch, the second relay switch comprises the second inductance and the first normal open switch, for the electromagnetic induction phenomenon producing by the second inductance energising, power-off, control the on off state of the first normal open switch, the second inductance is connected between described output relay normally closed contact and ground end, the first normal open switch is connected between the first working power input end and first signal input end, and
Described timing control module also comprises the 3rd relay switch, the 3rd relay switch comprises the 3rd inductance and the second normal open switch, for the electromagnetic induction phenomenon producing by the 3rd inductance energising, power-off, control the on off state of the second normal open switch, the 3rd inductance is connected between described output relay common port and described output relay normally closed contact, and in parallel with described mu balanced circuit, the second normal open switch is connected between described start end and described inner out-put supply end.
4. circuit according to claim 3, is characterized in that, described rectification circuit is bridge heap, comprises two output terminals;
Described mu balanced circuit comprises resistance R 1, capacitor C ', capacitor C ' ', voltage stabilizing diode ZD1 and triode Q, wherein, one output terminal of bridge heap is connected to the collector of triode Q, another output terminal is connected to the positive pole of voltage stabilizing diode ZD1, the negative pole of voltage stabilizing diode ZD1 is connected to the base stage of triode Q, reference voltage is provided to the base stage of triode Q; Resistance R 1 is connected between the collector of triode Q and the negative pole of voltage stabilizing diode ZD1, plays metering function; Capacitor C ' connecting triode Q collector and and the positive pole of voltage stabilizing diode ZD1 between, capacitor C ' ' be connected between the emitter of triode Q and the positive pole of voltage stabilizing diode ZD1 capacitor C ' and capacitor C ' ' play filter action; The 3rd inductance is connected between the emitter of triode and the positive pole of voltage stabilizing diode ZD1, and the positive pole of voltage stabilizing diode ZD1 is connected to output relay normally closed contact, and the emitter of triode Q is connected to output relay common port; The second normal open switch is connected between described start end and described inner out-put supply end.
5. according to claim 1 to 4 circuit described in any one wherein, it is characterized in that, described timing control module also comprises alarm, be connected between described output relay normally opened contact and ground end, after finishing for timing, the long closed contact of described output relay and described output relay common port disconnect, and described output relay common port is connected with described output relay normally opened contact, so that the energising of described alarm is reported to the police.
6. circuit according to claim 5; it is characterized in that; also comprise electrothermal relay; described electrothermal relay is connected between described drive plate to be measured and described normally closed switch; during for described drive plate overload to be measured; described electrothermal relay overcurrent heating is in open-circuit condition, and the circuit of described drive plate to be measured connects also in open-circuit condition, to protect described drive plate to be measured.
7. a light fixture, comprise drive plate, it is characterized in that, also comprise the switch activated life test circuit being connected with described drive plate to be measured, for the life-span of testing described drive plate, wherein, described switch activated life test circuit comprises the first ac supply signal input end and the second ac supply signal input end, the second switch unit that also comprises timing control module, timing control unit, is controlled by the first switch element of described timing control unit and is controlled by described timing control module;
Wherein, described timing control module is connected between the first ac supply signal input end and the second ac supply signal input end, second switch unit is connected to the first ac supply signal input end and described timing control unit, and be connected with the first switch element, described timing control unit is connected to the second ac supply signal input end, and described drive plate to be measured is connected between the first switch element and the second ac supply signal input end; And described timing control module is connected to second switch unit, and described timing control unit is connected to the first switch element; The electrical working time of drive plate is set and added up to test to described timing control module, described timing control unit is set single energising duration and the interruption duration of drive plate to be measured, and controls drive plate to be measured and with this energising duration and interruption duration, circulate and switch on and power-off in this electrical working time.
8. light fixture according to claim 7, it is characterized in that, described timing control unit comprises timing relay, comprise first signal input end and secondary signal input end, relay common port, relay normally open contact and relay normally closed contact, described timing relay is provided with the first delay time and the second delay time, wherein, the first delay time is corresponding with the conduction time of described drive plate to be measured, the second delay time is corresponding with the power-off time of described drive plate to be measured, first signal input end is connected to second switch unit, secondary signal input end is connected to the second ac supply signal input end, and,
Described the first switch element comprises the first relay switch, and the first relay switch comprises the first inductance and normally closed switch; The first inductance is connected between described relay normally open contact and ground end, and normally closed switch is connected between first signal input end and described drive plate to be measured; With the electromagnetic induction phenomenon producing by the first inductance energising, power-off, control the on off state of described normally closed switch.
9. light fixture according to claim 8, it is characterized in that, described timing control module comprises described in hour totalizer, transformer, rectification circuit, mu balanced circuit that hour totalizer comprises the first working power input end, the second working power input end, start end, inner out-put supply end, output relay common port, output relay normally opened contact and output relay normally closed contact; Wherein, the first working power input end is connected to the first ac supply signal input end, the second working power input end is connected to the second ac supply signal input end, described transformer is connected with the second ac supply signal input end with the first ac supply signal input end, described rectification circuit is connected between described transformer and described mu balanced circuit, and described mu balanced circuit is connected to described output relay common port;
Second switch unit comprises the second relay switch, the second relay switch comprises the second inductance and the first normal open switch, for the electromagnetic induction phenomenon producing by the second inductance energising, power-off, control the on off state of the first normal open switch, the second inductance is connected between described output relay normally closed contact and ground end, the first normal open switch is connected between the first working power input end and first signal input end, and
Described timing control module also comprises the 3rd relay switch, the 3rd relay switch comprises the 3rd inductance and the second normal open switch, for the electromagnetic induction phenomenon producing by the 3rd inductance energising, power-off, control the on off state of the second normal open switch, the 3rd inductance is connected between described output relay common port and described output relay normally closed contact, and in parallel with described mu balanced circuit, the second normal open switch is connected between described start end and described inner out-put supply end.
10. according to the light fixture described in claim 7 to 9 any one, it is characterized in that, described timing control module also comprises alarm, be connected between described output relay normally opened contact and ground end, after finishing for timing, the long closed contact of described output relay and described output relay common port disconnect, and described output relay common port is connected with described output relay normally opened contact, so that the energising of described alarm is reported to the police.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210215142.0A CN103513192A (en) | 2012-06-27 | 2012-06-27 | Switch starting life test circuit and lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210215142.0A CN103513192A (en) | 2012-06-27 | 2012-06-27 | Switch starting life test circuit and lamp |
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| Publication Number | Publication Date |
|---|---|
| CN103513192A true CN103513192A (en) | 2014-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210215142.0A Pending CN103513192A (en) | 2012-06-27 | 2012-06-27 | Switch starting life test circuit and lamp |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032557A (en) * | 2014-05-22 | 2014-09-10 | 佛山市顺德区美的电热电器制造有限公司 | Hanging ironing machine |
| CN106353615A (en) * | 2016-08-30 | 2017-01-25 | 中山市开普电器有限公司 | PRCD (portable residual current device) service life testing device |
| CN107942267A (en) * | 2017-12-14 | 2018-04-20 | 佛山科学技术学院 | Street lamp facility failure and life prediction system |
| CN109188036A (en) * | 2018-09-07 | 2019-01-11 | 深圳欣旺达智能科技有限公司 | The circuit of circulation timing test can be achieved |
| CN112423428A (en) * | 2020-11-20 | 2021-02-26 | 广东电网有限责任公司 | Intelligent tool and instrument shelf and control method thereof |
-
2012
- 2012-06-27 CN CN201210215142.0A patent/CN103513192A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032557A (en) * | 2014-05-22 | 2014-09-10 | 佛山市顺德区美的电热电器制造有限公司 | Hanging ironing machine |
| CN106353615A (en) * | 2016-08-30 | 2017-01-25 | 中山市开普电器有限公司 | PRCD (portable residual current device) service life testing device |
| CN107942267A (en) * | 2017-12-14 | 2018-04-20 | 佛山科学技术学院 | Street lamp facility failure and life prediction system |
| CN109188036A (en) * | 2018-09-07 | 2019-01-11 | 深圳欣旺达智能科技有限公司 | The circuit of circulation timing test can be achieved |
| CN109188036B (en) * | 2018-09-07 | 2021-03-23 | 深圳欣旺达智能科技有限公司 | Circuit capable of realizing cycle timing test |
| CN112423428A (en) * | 2020-11-20 | 2021-02-26 | 广东电网有限责任公司 | Intelligent tool and instrument shelf and control method thereof |
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