CN103454513A - Circuit for testing rotation durability of lamp - Google Patents
Circuit for testing rotation durability of lamp Download PDFInfo
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- CN103454513A CN103454513A CN 201210178153 CN201210178153A CN103454513A CN 103454513 A CN103454513 A CN 103454513A CN 201210178153 CN201210178153 CN 201210178153 CN 201210178153 A CN201210178153 A CN 201210178153A CN 103454513 A CN103454513 A CN 103454513A
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Abstract
The invention provides a circuit for testing rotation durability of a lamp. The circuit comprises a motor for controlling rotation of a lamp head of the lamp and a motor control module for controlling rotation of the motor. The motor control module comprises a forward control unit for controlling the motor to rotate forwards, a reverse control unit for controlling the motor to rotate reversely, a signal generation unit for controlling the forward control unit and the reverse control unit, a counting unit for controlling the rotation times of the lamp head of the lamp and a time control unit for being matched with controlling of the forward control unit and the reverse control unit. The circuit can automatically test rotation durability of the lamp and improve test efficiency.
Description
Technical field
The present invention relates to a kind of test circuit, relate in particular to a kind of test circuit of light fixture rotation permanance.
Background technology
In the rotation durability test work of the general light fixture in laboratory, can do some to light fixture and rotatablely move.Be mainly to investigate light fixture in the process of rotation, there will be what problem, and whether the light fixture rotation can reach the cycle index of designing requirement, the find problem point to going wrong and not touching the mark then, then light fixture is improved, until meet the demands.General concrete method of testing is: make light fixture do rotatablely moving back and forth around an axle, and instrument or the frock of this respect are not done in current laboratory, can only manually catch rotatable position to do rotatablely moving back and forth, so will do back and forth the repetitive operation of the circulation of up to ten thousand times.Therefore, the rotation durability test that people makees a light fixture at every turn wants just can complete in tens hours, tests, and personnel are very tired, go on doing always and just can not do other thing at all, and testing efficiency is low, and laboratory technician's labour intensity is very high.If go to buy such testing apparatus, do not have on the market to meet ready-made instrument or frock, can only have made to order, such cost is very high.
Summary of the invention
The technical problem to be solved in the present invention is to overcome in above-mentioned prior art and makes staff's low problem of testing efficiency of working because needing the manually-operated test process, and proposes a kind of test circuit of light fixture rotation permanance.
For solving the problems of the technologies described above, the present invention proposes a kind of test circuit of light fixture rotation permanance, comprising: a motor, in order to control the lamp holder rotation of light fixture; One motor control module, in order to control electric machine rotation; Wherein, motor control module comprises, one forward control module, in order to control the motor forward rotation, it comprises the circuit of one first relay and control first relay, one first normally closed switch and two the first normal open switch that the first relay comprises one first coil and is controlled by the first coil, the first normally closed switch string is located between motor and AC power; One reverse control module, in order to control motor, rotate backward, it comprises the circuit of one second relay and control second relay, and the second relay comprises one second coil and two the second normally closed switchs that are controlled by the second coil, and the second normally closed switch is located between motor and AC power; One signal generating unit, in order to control forward control module and reverse control module, it comprises that a first signal is held, end and a control end occur a secondary signal, control end connect the lamp holder of light fixture and under the drive of motor first signal occur end with secondary signal, hold between swing, end occurs and connects the forward control module in first signal, and secondary signal end occurs and connects reverse control module; One counting unit, the number of times rotated in order to the lamp holder of controlling light fixture, and record number of times, the first normal open switch closure once records once, when the number of times be recorded to reaches preset value, cuts off ac power supply, it is connected with the first normal open switch of forward control module, comprise the circuit of one the 3rd relay and control the 3rd relay, the 3rd relay comprises a tertiary coil and two the 3rd normal open switch that are controlled by tertiary coil, and the 3rd normal open switch is located between motor and AC power; One time control module, control motor forward and reverse control module control motor reversal in order to coordinate the forward control module, it comprises the circuit of one the 4th relay and control the 4th relay, the 4th relay comprises one the 4th coil and two the 4th normal open switch and two the 4th normally closed switchs that are controlled by the 4th coil, and the 4th normal open switch and the 4th normally closed switch are located between motor and AC power.
Preferably, the circuit of controlling the first relay comprises one first coil, one first metal-oxide-semiconductor, one first resistance and one first filter capacitor, the first end of the first metal-oxide-semiconductor connects the output terminal of the first coil to direct current power supply, the second end ground connection of the first metal-oxide-semiconductor, be parallel with the first resistance and the first filter capacitor between the control end of the first metal-oxide-semiconductor and ground.
Preferably, the circuit of controlling the second relay comprises one second coil, one second metal-oxide-semiconductor, one second resistance and one second filter capacitor, the first end of the second metal-oxide-semiconductor connects the output terminal of the second coil to direct supply, the second end ground connection of the second metal-oxide-semiconductor, be parallel with the second resistance and the second filter capacitor between the control end of the second metal-oxide-semiconductor and ground.
Preferably, the circuit of controlling the 4th relay comprises a first input end, one second input end, one the 3rd input end and an output terminal, and first input end connects the 4th coil to output terminal, and the second input end is connected with the 3rd input end.
Preferably, motor comprises first input end and the second input end, test circuit also comprises an electric motor protecting unit, the electric motor protecting unit comprises one the 3rd resistance, one the 4th resistance, one first silicon diode, one second silicon diode, one photo-coupler, the 5th relay and one is controlled the circuit of the 5th relay, the circuit of controlling the 5th relay comprises one the 3rd metal-oxide-semiconductor, one the 5th resistance and one the 5th filter capacitor, the 5th relay comprises two the 5th normally closed switchs, two 5 constant virtues switches and one the 5th coil, control between the first input end of the first input end of circuit of the 4th relay and motor and be in series with successively the 4th normal open switch, the second normally closed switch and the 3rd resistance, control between the second input end of the first input end of circuit of the 4th relay and motor and be in series with successively the 4th normally closed switch and the first normally closed switch, control between the first input end of second input end of circuit of the 4th relay and motor and be in series with successively the 4th normally closed switch and the first normally closed switch to the three resistance end away from motor, control between the second input end of second input end of circuit of the 4th relay and motor and be in series with successively the 4th normal open switch and the second normally closed switch.
Preferably, the anodic bonding of the first silicon diode is in the junction of the first normally closed switch and the 3rd resistance, be connected to the anode of photo-coupler after negative electrode connection the 4th resistance of the first silicon diode, the negative electrode of photo-coupler connects the first input end of motor, the first end of the 3rd metal-oxide-semiconductor connects the collector of the 5th coil to photo-coupler, the collector of photo-coupler connects the output terminal of direct supply, the second end ground connection of the 3rd metal-oxide-semiconductor, be parallel with the 5th resistance and the 3rd filter capacitor between the control end of the 3rd metal-oxide-semiconductor and ground, the control end of the 3rd metal-oxide-semiconductor is connected with the emitter of photo-coupler.
Preferably; the electric motor protecting unit also comprises a Tip element; Tip element comprises one the 6th resistance, a light emitting diode and a hummer; the anode of light emitting diode is connected with the collector of photo-coupler; ground connection after negative electrode series connection the 6th resistance of light emitting diode and 5 constant virtues switch; the anode of one end connecting luminous diode of hummer, the other end of hummer is connected in the junction of the 6th resistance and 5 constant virtues switch.
Preferably, AC power comprises the first output terminal and the second output terminal, the first output terminal of AC power and control between second input end of circuit of the 4th relay and be connected with the 5th normally closed switch and the 3rd normal open switch in turn, the second output terminal of AC power and control between the first input end of circuit of the 4th relay and be connected with the 5th normally closed switch and the 3rd normal open switch in turn.
Preferably, end occurs the first signal of signal generating unit and secondary signal generation end is a tongue tube, control end is provided with a magnet, end occurs and all is connected with the collector of photo-coupler with the end that end occurs secondary signal in first signal, the other end that end occurs first signal is connected with the control end of the second metal-oxide-semiconductor, and the other end that end occurs secondary signal is connected with the control end of the first metal-oxide-semiconductor; End occurs and is positioned at the maximum angle that control end goes to counterclockwise from vertical position in first signal, and secondary signal end occurs and is positioned at the maximum angle that control end goes to clockwise from vertical position.
Preferably, the circuit of controlling the 3rd relay comprises a first input end, one second input end, one the 3rd input end, a four-input terminal, one the 5th input end, one first output terminal, one second output terminal and a hummer, the first normal open switch connects first input end and the second input end, the 3rd input end and four-input terminal are connected respectively the first output terminal and second output terminal of AC power, the 5th input end connects the output terminal of direct supply, ground connection after the first output terminal connection hummer, ground connection after the second output terminal connection tertiary coil.
Compared with prior art, beneficial effect of the present invention comprises: the present invention utilizes a kind of test circuit of light fixture rotation permanance, moving by controlling motor positive and inverse, make its lamp holder cycle rotation, then coordinate time control unit and counting unit, Auto-counting and complete test, remove the trouble of the method for testing of artificial do action from, meet testing requirement, reduced testing cost and laboratory technician's fatigue strength simultaneously, improved work efficiency.
The accompanying drawing explanation
The theory diagram of the test circuit that Fig. 1 is light fixture rotation permanance of the present invention.
The circuit diagram of the test circuit that Fig. 2 is light fixture rotation permanance of the present invention.
Embodiment
In order to further illustrate principle of the present invention and structure, existing by reference to the accompanying drawings to a preferred embodiment of the present invention will be described in detail.
Refer to Fig. 1, the test circuit of a kind of light fixture rotation permanance of the present invention comprises: lamp holder electric rotating machine M and the motor control module rotated in order to control motor M in order to control light fixture.
Motor control module comprises: the reverse control module 2 of a forward control module 1,, a counting unit 3, a time control module 4, an electric motor protecting unit 5, exchange and turn direct current unit 6 and a signal generating unit 7.Forward control module 1, in order to control the motor M forward rotation, it comprises the circuit of one first relay and control first relay, one first normally closed switch K1 and two the first normal open switch K1 that the first relay comprises one first coil K1 and is controlled by the first coil K1, the first normally closed switch K1 string is located between motor M and AC power.Reverse control module 2, in order to control motor M, rotate backward, it comprises the circuit of one second relay and control second relay, the second relay comprises one second coil K2 and two the second normally closed switch K2 that are controlled by the second coil K2, and the second normally closed switch K2 is located between motor M and AC power.Signal generating unit 7, in order to control forward control module 1 and reverse control module 2, it comprises that a first signal is held, end and a control end occur a secondary signal, control end connect the lamp holder of light fixture and under the drive of motor M first signal occur end with secondary signal, hold between swing, end occurs and connects forward control module 1 in first signal, and secondary signal end occurs and connects reverse control module 2.Counting unit 3, the number of times rotated in order to the lamp holder of controlling light fixture, and record number of times, the first normal open switch K1 closure once records once, when the number of times be recorded to reaches preset value, cut off ac power supply, it is connected with the first normal open switch K1 of forward control module 1, the circuit that comprises one the 3rd relay and control the 3rd relay, the 3rd relay comprises a tertiary coil K3 and two the 3rd normal open switch K3 that are controlled by tertiary coil K3, and the 3rd normal open switch K3 is located between motor M and AC power.Time control unit 4, control motor M forward and oppositely control module 2 control motor M reversions in order to coordinate forward control module 1, it comprises the circuit of one the 4th relay and control the 4th relay, the 4th relay comprises one the 4th coil K4 and two the 4th normal open switch K4 and two the 4th normally closed switch K4 that are controlled by the 4th coil K4, and the 4th normal open switch K4 and the 4th normally closed switch K4 are located between motor M and AC power.When electric motor protecting unit 5 can prevent motor rotation blockage, motor is burned.Interchange turns direct current unit 6 can be converted to direct-current power supply forward control module 1, reverse control module 2, counting unit 3 and electric motor protecting power supply 5 to AC power.
Refer to Fig. 1 and Fig. 2, start power supply, electric machine rotation also drives the lamp holder swing.When lamp holder is rocked to clockwise maximum angle, signal generating unit 7 is controlled 1 work of forward control modules, and forward control module 1 is controlled counting unit 3 and recorded the number of times that lamp holder rotates and add 1, and disconnects being connected of motor and power supply, and now motor stops operating.Simultaneously, time control unit 4 starts timing, waits for the time of setting that arrives.After the default time of arrival, power supply exchange electrode, motor rotates backward and drives lamp holder and is rocked to anticlockwise maximum angle, and signal generating unit 7 is controlled reverse control module 2 work, and reverse control module 2 disconnection motors are connected with power supply.Simultaneously, time control unit 4 starts timing, and after arriving the time of setting, time control unit 4 switches on power and motor, and motor starts again forward, and circulation is gone down successively, and lamp holder often is rocked to counting unit of clockwise maximum angle 3 with regard to record once.When the cycle index recorded when counting unit 3 reaches preset value, counting unit 3 disconnects being connected of motors and power supply, experiment end.If in experimentation, the situation of stall appears, electric motor protecting unit 5 meeting deenergizations are connected with motor, and send alerting signal, notify the experimenter to process, and avoid motor to be burned.
Please continue to consult Fig. 2, the circuit of controlling the first relay comprises one first coil K1, one first metal-oxide-semiconductor Q1, one first resistance R 1 and one first filter capacitor C1.The first end of the first metal-oxide-semiconductor Q1 connects the first coil K1 best friend second end ground connection of output terminal 60, the first metal-oxide-semiconductor Q1 of direct current unit 6 that circulates, and is parallel with the first resistance R 1 and the first filter capacitor C1 between the control end of the first metal-oxide-semiconductor Q1 and ground.Wherein, the drain electrode that the first end of the first metal-oxide-semiconductor Q1 is metal-oxide-semiconductor, the source electrode that the second end of the first metal-oxide-semiconductor Q1 is metal-oxide-semiconductor, the grid that the control end of the first metal-oxide-semiconductor Q1 is metal-oxide-semiconductor.
The circuit of controlling the second relay comprises one second coil K2, one second metal-oxide-semiconductor Q2, one second resistance R 2 and one second filter capacitor C2, the first end of the second metal-oxide-semiconductor Q2 connects the circulate output terminal 60 of direct current unit 6 of the second coil K2 best friend, the second end ground connection of the second metal-oxide-semiconductor Q2, be parallel with the second resistance R 2 and the second filter capacitor C2 between the control end of the second metal-oxide-semiconductor Q2 and ground.Wherein, the drain electrode that the first end of the second metal-oxide-semiconductor Q2 is metal-oxide-semiconductor, the source electrode that the second end of the second metal-oxide-semiconductor Q2 is metal-oxide-semiconductor, the grid that the control end of the second metal-oxide-semiconductor Q2 is metal-oxide-semiconductor.
The circuit of controlling the 4th relay comprises a first input end, one second input end, one the 3rd input end and an output terminal.The circuit of controlling the 4th relay is timing relay DH48S-S.First input end, the second input end, the 3rd input end and the output terminal of controlling the circuit of the 4th relay are respectively pin two, pin 8, pin 7 and the pin 6 of timing relay DH48S-S.The pin two of timing relay DH48S-S connects the pin 6 of the 4th coil K4 to timing relay DH48S-S, and the pin 8 of timing relay DH48S-S is connected with the pin 7 of timing relay DH48S-S.
Motor M comprises first input end and the second input end; test circuit also comprises an electric motor protecting unit, and the electric motor protecting unit comprises the circuit of one the 3rd resistance R 3, one the 4th resistance R 4, one first silicon diode D1, one second silicon diode D2, a photo-coupler PC817, the 5th relay and control the 5th relay.The circuit of controlling the 5th relay comprises one the 3rd metal-oxide-semiconductor Q3, one the 5th resistance R 5 and one the 5th filter capacitor C5.The 5th relay comprises two the 5th normally closed switch K5, two 5 constant virtues K switch 5 and one the 5th coil K5, be in series with successively the 4th normal open switch K4 between the first input end M1 of the pin two of timing relay DH48S-S and motor M, the second normally closed switch K2 and the 3rd resistance R 3, be in series with successively the 4th normally closed switch K4 and the first normally closed switch K1 between the second input end M2 of the pin two of timing relay DH48S-S and motor M, be in series with successively the 4th normally closed switch K4 and the first normally closed switch K1 to the three resistance R 3 end away from motor M between the pin 8 of timing relay DH48S-S and the first input end M1 of motor M, be in series with successively the 4th normal open switch K4 and the second normally closed switch K2 between the second input end M2 of the pin 8 of timing relay DH48S-S and motor M.
The anodic bonding of the first silicon diode D1 is in the junction 50 of the first normally closed switch K1 and the 3rd resistance R 3, be connected to the anode of photo-coupler PC817 after negative electrode connection the 4th resistance R 4 of the first silicon diode D1, the negative electrode of photo-coupler PC817 connects the first input end M1 of motor M, the first end of the 3rd metal-oxide-semiconductor connects the collector of the 5th coil K5 to photo-coupler PC817, the collector of photo-coupler PC817 connects the output terminal 60 that interchange turns direct current unit 6, the second end ground connection of the 3rd metal-oxide-semiconductor, be parallel with the 5th resistance R 5 and the 3rd filter capacitor C3 between the control end of the 3rd metal-oxide-semiconductor and ground, the control end of the 3rd metal-oxide-semiconductor is connected with the emitter of photo-coupler PC817.Wherein, the drain electrode that the first end of the 3rd metal-oxide-semiconductor Q3 is metal-oxide-semiconductor, the source electrode that the second end of the 3rd metal-oxide-semiconductor Q3 is metal-oxide-semiconductor, the grid that the control end of the 3rd metal-oxide-semiconductor Q3 is metal-oxide-semiconductor.
The motor M protected location also comprises a Tip element, and Tip element comprises one the 6th resistance R 6, a LED 1 and a hummer SP2.The anode of LED 1 is connected with the collector of photo-coupler PC817, negative electrode series connection the 6th resistance R 6 and the rear ground connection of 5 constant virtues K switch 5 of LED 1, the anode of the end connecting luminous diode LED1 of hummer SP2, the other end of hummer SP2 is connected in the junction 51 of the 6th resistance R 6 and 5 constant virtues K switch 5.
AC power comprises the first output terminal G1 and the second output terminal G2, be connected with make and break K5 in 5 constant virtues between the first output terminal G1 of AC power and the pin 8 of timing relay DH48S-S in turn and close and the 3rd normal open switch K3, between the second output terminal G2 of AC power and the pin two of timing relay DH48S-S, be connected with the 5th normally closed switch K5 and the 3rd normal open switch K3 in turn.
End occurs the first signal of signal generating unit 7 and secondary signal generation end is respectively a tongue tube 71 and tongue tube 72, and control end is provided with a magnet 70.One end of tongue tube 71 and tongue tube 72 all is connected with the collector of photo-coupler PC817, and the other end of tongue tube 71 is connected with the control end of the second metal-oxide-semiconductor Q2, and the other end of tongue tube 72 is connected with the control end of the first metal-oxide-semiconductor Q1.Magnet near the tongue tube time, the closing of contact on tongue tube, thereby the control end of conducting metal-oxide-semiconductor, magnet is away from tongue tube the time, the contact of tongue tube disconnects, the control end of metal-oxide-semiconductor does not have voltage.
End occurs and is positioned at the maximum angle that control end goes to counterclockwise from vertical position in first signal, and secondary signal end occurs and is positioned at the maximum angle that control end goes to clockwise from vertical position.
The circuit of controlling the 3rd relay comprises a first input end, one second input end, one the 3rd input end, a four-input terminal, one the 5th input end, one first output terminal, one second output terminal and a hummer SP2.The circuit of controlling the 3rd relay is counter TCN-P61B.First input end, the second input end, the 3rd input end, a four-input terminal, the 5th input end, the first output terminal and the second output terminal of controlling the circuit of the 3rd relay are respectively pin one, pin 4, pin one 3, pin one 5, pin one 8, pin one 7 and the pin one 9 of counter TCN-P61B.The first normal open switch K1 connects pin one and the pin 4 of TCN-P61B, the pin one 3 of TCN-P61B and pin one 5 are connected respectively the first output terminal G1 and the second output terminal G2 of AC power, the pin one 8 of TCN-P61B connects the output terminal 60 that interchange turns direct current unit 6, ground connection after the pin one 7 connection hummer SP2 of TCN-P61B, ground connection after the pin one 9 connection tertiary coil K3 of TCN-P61B.
Interchange turns direct current unit 6 and comprises a power transformer T1, bridge heap B1, one the 4th a filter capacitor C4, three-terminal voltage-stabilizing circuitron Q4 and one the 5th filter capacitor C5.Power transformer T1 connects AC power.Power transformer T1 bridge heap B1, be connected with the 5th filter capacitor C5 between the output terminal of bridge heap B1 and ground, the control end of three-terminal voltage-stabilizing circuitron Q4 is connected with the output terminal of bridge heap B1, the earth terminal ground connection of three-terminal voltage-stabilizing circuitron Q4, be connected with the 4th filter capacitor C4 between the output terminal of three-terminal voltage-stabilizing circuitron Q4 and ground, the output terminal of three-terminal voltage-stabilizing circuitron Q4 is for exchanging the output terminal 60 that turns direct current unit 6.Wherein, the model of three-terminal voltage-stabilizing circuitron Q4 is 7812.
Describe below in conjunction with Fig. 1 and Fig. 2 the principle of work that this light fixture rotates the test circuit of permanance in detail.
Before doing experiment, first motor M is connected to lamp holder, make motor M can drive lamp holder and swing, more first lamp holder is connected to magnet 70, the fixed pointers of tongue tube 71 and tongue tube 72 is put into the place that lamp holder will turn to the position of maximum angle.Wherein, tongue tube 71 is positioned at the maximum angle that control end goes to counterclockwise from vertical position, and tongue tube 72 is positioned at the maximum angle that control end goes to clockwise from vertical position.The live wire of AC power and zero line are connected respectively the first output terminal G1 and the second output terminal G2 of AC power.During the motor M forward, the direction with moving magnet 70 from tongue tube 71 toward tongue tube 72 swings, and during motor reversal, the direction with moving magnet 70 from tongue tube 72 toward tongue tube 71 swings.
And then parameters.Wherein, first to determine the cycle index that lamp holder rotates, then counter TCN-P61B be arranged to corresponding number of times.Time value T1 and the T2 of timing relay then are set.T1 and T2 time equate.It is fixed that the speed that the size of time will be rotated according to gear wheel comes.The corresponding lamp holder of T1 runs to from tongue tube 71 time that tongue tube 72 needs, and the corresponding lamp holder of T2 runs to from tongue tube 72 time that tongue tube 71 needs.
After preliminary preparation is carried out: by upper ac power switch SW1, circuit starts to be electrified, counter TCN-P61B starts working, voltage is through power transformer T1 transformation simultaneously, then through the heap B1 rectification of passing a bridge, the 5th filter capacitor C5 carries out filtering, through the 12V DC voltage of three-terminal voltage-stabilizing circuit Q4 stable output, then through the 4th filter capacitor C4 filtering.Electric current flows to the first coil K1, the second coil K2 and tri-coils of tertiary coil K3, because the grid level of the first metal-oxide-semiconductor Q1, the second metal-oxide-semiconductor Q2 and the 3rd metal-oxide-semiconductor Q3 does not have voltage, so all not conductings, the first normally closed switch K1, the second normally closed switch K2 and tri-normally closed contacts of the 5th normally closed switch K5 are failure to actuate.Now electric current is also to the normally closed contact of the 5th coil K5, electric current also arrives the pin one 8,19 of counter TCN-P61B simultaneously, tertiary coil K3 energising, the normally opened contact closure of the 3rd normal open switch K3, the normally opened contact that electric current flows through the 3rd normal open switch K3 reaches timing relay DH48S-S.Timing relay DH48S-S starts working, trigger T1, simultaneously electric current is also through the normally closed contact of the first normally closed switch K1, motor M starts to rotate, suppose that motor M has just started to rotate for forward, now motor M drives the direction rotation of magnet 70 from tongue tube 71 toward tongue tube 72 of signal generating unit 7.Three kinds of situations are now arranged: the first situation is: magnet 70 pointers are having the place of distance from tongue tube 71 and 72; The second situation is: magnet 70 is in the position of tongue tube 71, now tongue tube 71 adhesives, and the second metal-oxide-semiconductor Q2 conducting, the second coil K2 is charged, and the second normally closed switch K2 normally closed contact disconnects.The forward that both of these case does not affect motor M rotates, because when magnet 70 leaves the position of tongue tube 71, tongue tube 71 disconnects, the second not conducting of metal-oxide-semiconductor Q2, the second coil K2 outage, the normally closed contact closure of the second normally closed switch K2.When magnet 70 moves to tongue tube 72 position, T1 is in the above during the first situation, and the time of T1 does not also reach, and T1 may just reach or also have excess time in the second situation time, now tongue tube 72 adhesives, the first metal-oxide-semiconductor Q1 conducting, the first coil K1 is charged, and the first normally closed switch K1 normally closed contact disconnects, while the first normal open switch K1 normally opened contact closure, counter TCN-P61B starts counting and adds 1, and motor M stops operating, and waits for that the T1 time arrives setting-up time.After time reaches, the normally closed contact of timing relay DH48S-S the 4th normally closed switch K4 disconnects, the normally opened contact closure of the 4th normal open switch K4.Also start the T2 timing simultaneously, the 4th coil K4 energising, now electric current is through the normally closed contact of the second normally closed switch K2.Live wire and zero line place-exchange due to AC power, so motor M reversion, when magnet 70 reaches the position of tongue tube 71, tongue tube 71 adhesives, the second metal-oxide-semiconductor Q2 conducting, the second coil K2 is charged, the second normally closed switch K2 normally closed contact disconnects, motor M stops operating, and waits for that the time of T2 arrives, and the T2 time may just reach or also have excess time, carry out T1 at once, so repeatedly go down, until counter TCN-P61B has been while having arrived the cycle index of testing, the 18 pin contacts of counter TCN-P61B and 19 disconnect.Now, tertiary coil K3 outage, the contact of the 3rd normal open switch K3 disconnects, now timing relay motor D H48S-S does not have electricity, quits work, and test finishes, and the 17 pin conductings of hummer SP1 and counter TCN-P61B, hummer SP1 sends warning, notifies the laboratory technician to test end.The third situation is that magnet 70 is in the position of tongue tube 72, the first metal-oxide-semiconductor Q1 conducting, the first coil K1 is charged, the normally closed contact of the first normally closed switch K1 of the first coil K1 disconnects, motor M is not rotated always, wait for that the T1 time goes over, the arrival of T2 time, then go on by top analysis always.
When in long-term test process, tongue tube 71 and 72 likely breaks down, and can cause motor M to rotate down always.When due to lamp holder, forwarding certain position to, can not rotate, now motor M can not be rotated again, and stall has now appearred in motor M, and the motor M working current can increase 1-2 doubly, and the short time stall can not cause motor M to burn out.The stall time has been grown, and after electric current increases, temperature rises and burns out motor M, so increased motor protective circuit 5, the five resistance R 5, has sealed in the circuit the inside, with motor M, connects.The resistance of the 5th resistance R 5 is smaller, by calculating its situation of dividing potential drop at circuit, selects resistance.In the situation of normal rotation, because the 5th resistance R 5 resistance are little, the voltage on it is little, and the voltage that is added to the first silicon diode D1, the second silicon diode D2 and photo-coupler PC817 is smaller, and photo-coupler PC817 can not conducting.When the motor M stall, electric current increases 1-2 doubly, the voltage of the 5th resistance R 5 increases 1-2 doubly, just energy conducting of photo-coupler PC817 like this, the 3rd metal-oxide-semiconductor Q3 conducting, the 5th coil K5 conducting, the normally closed contact of the 5th normally closed switch disconnects, timing relay DH48S-S and motor M are not charged, quit work.Now, the 5th coil K5 itself has formed a path, always charged, the normally opened contact closure of 5 constant virtues K switch 5, the loss of voltage on the 5th resistance R 5.Because the 5th coil K5 has electricity always, LED 1 is luminous, and hummer SP2 sounds, and double-point information prompts for instrument failure, notifies the laboratory technician to process problem.Owing to after counter TCN-P61B outage, still having memory function, after instrument failure is fixed, still can work on, until tested.
Compared with prior art, adopt the test circuit of light fixture rotation permanance of the present invention, mating reaction by counter and timing relay, relay can be recorded the number of times of lamp holder cycle of rotation automatically, can send alarm sound after testing and notify the laboratory technician, the laboratory technician need not be hand-manipulated, also need not constantly keep the circuit design that records the lamp holder cycle of rotation, just solve the not high problem of testing efficiency, and reduced laboratory technician's fatigue strength like this.
The foregoing is only better possible embodiments of the present invention, not limit the scope of the invention.The equivalent structure that all utilizations instructions of the present invention and accompanying drawing content have been done changes, and all is included in protection scope of the present invention.
Claims (10)
1. the test circuit of a light fixture rotation permanance, is characterized in that, comprising:
One motor, in order to control the lamp holder rotation of described light fixture;
One motor control module, in order to control described electric machine rotation;
Wherein, described motor control module comprises,
One forward control module, in order to control described motor forward rotation, it comprises the circuit of one first relay and described the first relay of a control, one first normally closed switch and two the first normal open switch that described the first relay comprises one first coil and is controlled by described the first coil, described the first normally closed switch string is located between described motor and AC power;
One reverse control module, in order to control described motor, rotate backward, it comprises the circuit of one second relay and described the second relay of a control, described the second relay comprises one second coil and two the second normally closed switchs that are controlled by described the second coil, and described the second normally closed switch is located between described motor and described AC power;
One signal generating unit, in order to control described forward control module and described reverse control module, it comprises that a first signal is held, end and a control end occur a secondary signal, described control end connect the lamp holder of described light fixture and under the drive of described motor described first signal occur end with described secondary signal, hold between swing, end occurs and connects described forward control module in described first signal, and described secondary signal end occurs and connects described reverse control module;
One counting unit, the number of times rotated in order to the lamp holder of controlling described light fixture, and record described number of times, described the first normal open switch closure once records once, when the described number of times be recorded to reaches preset value, cut off described ac power supply, it is connected with the first normal open switch of described forward control module, the circuit that comprises one the 3rd relay and described the 3rd relay of a control, described the 3rd relay comprises a tertiary coil and is controlled by two the 3rd normal open switch of described tertiary coil, described the 3rd normal open switch is located between described motor and described AC power,
One time control module, in order to coordinate described forward control module to control described motor forward and described reverse control module is controlled described motor reversal, it comprises the circuit of one the 4th relay and described the 4th relay of a control, described the 4th relay comprises one the 4th coil and two the 4th normal open switch and two the 4th normally closed switchs that are controlled by described the 4th coil, and described the 4th normal open switch and the 4th normally closed switch are located between described motor and described AC power.
2. test circuit as claimed in claim 1, it is characterized in that, the circuit of described the first relay of described control comprises one first coil, one first metal-oxide-semiconductor, one first resistance and one first filter capacitor, the first end of described the first metal-oxide-semiconductor connects the output terminal of described the first coil to direct current power supply, the second end ground connection of described the first metal-oxide-semiconductor, be parallel with the first resistance and the first filter capacitor between the control end of described the first metal-oxide-semiconductor and ground.
3. test circuit as claimed in claim 1, it is characterized in that, the circuit of described the second relay of described control comprises one second coil, one second metal-oxide-semiconductor, one second resistance and one second filter capacitor, the first end of described the second metal-oxide-semiconductor connects the output terminal of described the second coil to described direct supply, the second end ground connection of described the second metal-oxide-semiconductor, be parallel with the second resistance and the second filter capacitor between the control end of described the second metal-oxide-semiconductor and ground.
4. test circuit as claimed in claim 1, it is characterized in that, the circuit of described the 4th relay of described control comprises a first input end, one second input end, one the 3rd input end and an output terminal, described first input end connects described the 4th coil to described output terminal, and described the second input end is connected with described the 3rd input end.
5. test circuit as claimed in claim 1, it is characterized in that, described motor comprises first input end and the second input end, described test circuit also comprises an electric motor protecting unit, described electric motor protecting unit comprises one the 3rd resistance, one the 4th resistance, one first silicon diode, one second silicon diode, one photo-coupler, the 5th relay and one is controlled the circuit of described the 5th relay, the circuit of described the 5th relay of described control comprises one the 3rd metal-oxide-semiconductor, one the 5th resistance and one the 5th filter capacitor, described the 5th relay comprises two the 5th normally closed switchs, two 5 constant virtues switches and one the 5th coil, be in series with successively described the 4th normal open switch between the first input end of the circuit of described the 4th relay of described control and the first input end of described motor, the second normally closed switch and the 3rd resistance, be in series with successively described the 4th normally closed switch and the first normally closed switch between the first input end of the circuit of described the 4th relay of described control and the second input end of described motor, be in series with successively described the 4th normally closed switch and the first normally closed switch between the second input end of the circuit of described the 4th relay of described control and the first input end of described motor to the end of described the 3rd resistance away from described motor, be in series with successively described the 4th normal open switch and the second normally closed switch between the second input end of the circuit of described the 4th relay of described control and the second input end of described motor.
6. test circuit as claimed in claim 5, it is characterized in that, the anodic bonding of described the first silicon diode is in the junction of described the first normally closed switch and described the 3rd resistance, the negative electrode of described the first silicon diode connects after described the 4th resistance the anode that is connected to described photo-coupler, the negative electrode of described photo-coupler connects the first input end of described motor, the first end of described the 3rd metal-oxide-semiconductor connects the collector of described the 5th coil to described photo-coupler, the collector of described photo-coupler connects the output terminal of described direct supply, the second end ground connection of described the 3rd metal-oxide-semiconductor, be parallel with the 5th resistance and the 3rd filter capacitor between the control end of described the 3rd metal-oxide-semiconductor and ground, the control end of described the 3rd metal-oxide-semiconductor is connected with the emitter of described photo-coupler.
7. test circuit as claimed in claim 6; it is characterized in that; described electric motor protecting unit also comprises a Tip element; described Tip element comprises one the 6th resistance, a light emitting diode and a hummer; the anode of described light emitting diode is connected with the collector of described photo-coupler; the negative electrode of the described light emitting diode ground connection after described the 6th resistance and described 5 constant virtues switch of connecting; one end of described hummer connects the anode of described light emitting diode, and the other end of described hummer is connected in the junction that switch is driven in described the 6th resistance and described 5 constant virtues.
8. test circuit as claimed in claim 1, it is characterized in that, described AC power comprises the first output terminal and the second output terminal, be connected with described the 5th normally closed switch and described the 3rd normal open switch between the second input end of the circuit of the first output terminal of described AC power and described the 4th relay of described control in turn, be connected with described the 5th normally closed switch and described the 3rd normal open switch between the first input end of the circuit of the second output terminal of described AC power and described the 4th relay of described control in turn.
9. test circuit as claimed in claim 1, it is characterized in that, end occurs the first signal of described signal generating unit and secondary signal generation end is a tongue tube, described control end is provided with a magnet, end occurs and all is connected with the collector of described photo-coupler with the end that end occurs described secondary signal in described first signal, the other end that end occurs described first signal is connected with the control end of described the second metal-oxide-semiconductor, and the other end that end occurs described secondary signal is connected with the control end of described the first metal-oxide-semiconductor; End occurs and is positioned at the maximum angle that described control end goes to counterclockwise from vertical position in described first signal, and described secondary signal end occurs and is positioned at the maximum angle that described control end goes to clockwise from vertical position.
10. test circuit as claimed in claim 1, it is characterized in that, the circuit of described the 3rd relay of described control comprises a first input end, one second input end, one the 3rd input end, one four-input terminal, one the 5th input end, one first output terminal, one second output terminal and a hummer, described the first normal open switch connects described first input end and the second input end, described the 3rd input end and described four-input terminal are connected respectively the first output terminal and second output terminal of described AC power, described the 5th input end connects the output terminal of described direct supply, described the first output terminal connects ground connection after described hummer, described the second output terminal connects ground connection after described tertiary coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210178153 CN103454513A (en) | 2012-05-31 | 2012-05-31 | Circuit for testing rotation durability of lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210178153 CN103454513A (en) | 2012-05-31 | 2012-05-31 | Circuit for testing rotation durability of lamp |
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| CN103454513A true CN103454513A (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201210178153 Pending CN103454513A (en) | 2012-05-31 | 2012-05-31 | Circuit for testing rotation durability of lamp |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840662A (en) * | 2017-03-20 | 2017-06-13 | 陕西法士特齿轮有限责任公司 | A kind of AMT executing agencies fatigue property test system and method |
| CN108107379A (en) * | 2017-12-07 | 2018-06-01 | 福建省苍乐电子企业有限公司 | A kind of energy-saving lamp GU lamp caps detection device and method |
| CN108634927A (en) * | 2018-05-23 | 2018-10-12 | 李志明 | A kind of human eye adjusting sensitivity test instrument |
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2012
- 2012-05-31 CN CN 201210178153 patent/CN103454513A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840662A (en) * | 2017-03-20 | 2017-06-13 | 陕西法士特齿轮有限责任公司 | A kind of AMT executing agencies fatigue property test system and method |
| CN106840662B (en) * | 2017-03-20 | 2023-06-23 | 陕西法士特齿轮有限责任公司 | AMT actuating mechanism fatigue performance testing system and method |
| CN108107379A (en) * | 2017-12-07 | 2018-06-01 | 福建省苍乐电子企业有限公司 | A kind of energy-saving lamp GU lamp caps detection device and method |
| CN108107379B (en) * | 2017-12-07 | 2024-01-30 | 福建省苍乐电子企业有限公司 | Device and method for detecting GU lamp cap of energy-saving lamp |
| CN108634927A (en) * | 2018-05-23 | 2018-10-12 | 李志明 | A kind of human eye adjusting sensitivity test instrument |
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Application publication date: 20131218 |