CN104316794B - Device for AC contactor touch head material electric performance test and the method using this device to test contact material electrical property - Google Patents
Device for AC contactor touch head material electric performance test and the method using this device to test contact material electrical property Download PDFInfo
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- CN104316794B CN104316794B CN201410567011.8A CN201410567011A CN104316794B CN 104316794 B CN104316794 B CN 104316794B CN 201410567011 A CN201410567011 A CN 201410567011A CN 104316794 B CN104316794 B CN 104316794B
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Abstract
Device for AC contactor touch head material electric performance test and the method using this device to test contact material electrical property, belong to low-voltage electrical apparatus and electrical material field.In order to solve the problems, such as existing A.C. contactor reliability-test equipment do not enable that clearance between open contacts are adjustable and contact material replaceable under the conditions of the measurement of catalyst electrical property.By sliding up and down of vertical slide unit, adjust the clearance between open contacts between static contact and moving contact, solve existing A.C. contactor reliability-test equipment and do not enable the adjustable problem of clearance between open contacts.Move tactile bridge and static contact spring piece makes to change the moving contact of different contact materials and static contact is convenient, thus obtaining the electrical property of the contact of different contact materials further, meet the demand that existing A.C. contactor assay device cannot complete the impact to its electrical property for the catalyst machinery adjustment parameter simultaneously.Apply also for the test of the test, short circuit making and pitch capability of life test, shutoff and making capacity of catalyst.
Description
Technical field
The present invention relates to low-voltage electrical apparatus and electrical material field.
Background technology
A.C. contactor be a kind of for be switched on or switched off load-carrying exchange main circuit or Large Copacity control circuit from
Dynamicization switch, major control, to liking motor, is also used for other electrical loads in addition, such as electric heater, electric welding machine, and illumination sets
Standby, catalyst can not only be switched on and off circuit, but also has the effect of low-voltage release guard.Catalyst control capability is big,
It is applied to frequent operation and distant control, be one of critical elements in automatic control system.Therefore A.C. contactor can
Most important in actual production by property, need the key characteristic parameter during exchange electric contactor electrical endurance is entered
Row test.
The contact material of A.C. contactor is to complete conducting, the carrier of breaking current function in it, therefore its electric arc and electricity
Contact performance is the key of impact A.C. contactor electric life and reliability.In recent years, the demand of A.C. contactor manufacturer is general
All over being embodied in the aspects such as product " miniaturization, low-power consumption, the long-life, highly reliable ", therefore supporting contact material is proposed
Higher and higher requirement.Under here drives, for the research work of contact material constituent optimization development, make to a certain extent
The electric life of electrical equipment is improved.It is known that the electric life of A.C. contactor with switching loading condition, mechanical movement characteristic,
Working environment atmosphere, contact material group grading factors are directly related, therefore single contact material component and A.C. contactor
The corresponding relation of electric life also not being to determine property.
Existing A.C. contactor assay device is concentrated mainly on reliability test aspect.The limitation of such test device
It is mainly reflected in：(1) reliability test is carried out to catalyst finished product, judge to connect with parameters such as contact drops in each course of action
Whether tentaculum lost efficacy and recorded it is impossible to complete the impact to its electrical property such as catalyst machinery adjustment parameter such as clearance between open contacts.(2)
The impact to catalyst electrical property for the contact material cannot conveniently be studied.(3) voltage x current of catalyst can only be measured, no
Method realizes the measurement to contact melting welding force parameter.
Content of the invention
The present invention in order to solve existing A.C. contactor reliability-test equipment do not enable clearance between open contacts adjustable and
The problem of the catalyst electrical property measurement under the conditions of contact material is replaceable, tests also for meeting existing A.C. contactor
Device cannot complete the demand of the impact to its electrical property for the catalyst machinery adjustment parameter.Propose for AC contactor touch head
The device of material electric performance test and the method using this device to test contact material electrical property.
For the device of AC contactor touch head material electric performance test, this device includes testing A.C. contactor and its consolidates
Determine device, two clearance between open contacts adjusting apparatus, six power measurement parts, six static contact installation units and arc-extinguish chamber；
Test A.C. contactor and its fixing device include keyset and three moving contact installation units, and each moving contact is pacified
Dress unit includes one and moves tactile bridge support block, a dynamic tactile bridge fixation hook and a dynamic tactile bridge；
Described tested catalyst is fixed on the upper surface of keyset, the lower surface of three moving contact installation units all with tested
The upper surface of the load contact of catalyst is adhesively fixed, and three moving contact installation units are longitudinally coaxial；
Dynamic bridge fixation hook, dynamic tactile bridge support block and the dynamic bridge that touches of touching in moving contact installation unit corresponds, described dynamic tactile
Bridge fixation hook is mounted in corresponding dynamic tactile bridge support block, and corresponding dynamic tactile bridge is mounted in described moving and touches on bridge fixation hook,
Dynamic touch on the bridge body of a bridge each side have a moving contact installing hole, described moving contact installing hole is used for installing
Moving contact to be measured；
Static contact installation unit includes politef partiting thermal insulation cylinder, static contact spring piece connector and static contact spring piece；Static contact spring piece, quiet
Reed connector and politef partiting thermal insulation cylinder are from top to bottom fixedly connected sequentially；The upper surface of static contact spring piece is provided with stationary contact
Head installing zone, described static contact installing zone is used for installing static contact to be measured；
Three moving contact installation units and six static contact installation units constitute three groups of contact units；Every group of contact connects
Tactile unit includes a moving contact installation unit and two static contact installation units, and the dynamic tactile bridge bridge in moving contact installation unit
The moving contact installing hole of the body left and right sides is just right with the static contact installing zone in static contact installation unit respectively；
Power measurement part is fixed on the bottom of static contact installation unit, for measuring static contact to be measured and moving contact adhesive
And force signal during disjunction；
Clearance between open contacts adjusting apparatus include vertical slide unit, right angle fixed block, horizontal sliding table, T-shaped keyset；Right angle fixed block
Horizontal plane be located on horizontal sliding table, and be slidably connected with this horizontal sliding table, the side of vertical slide unit and described right angle fixed block
Vertical plane be slidably connected, the transverse slat of T-shaped keyset is fixedly connected with the opposite side of described vertical slide unit；T-shaped keyset perpendicular
Plate level is arranged；
Two clearance between open contacts adjusting apparatus are located at the left and right sides of described test A.C. contactor and its fixing device respectively,
And mirror image setting；
Described power measurement part is also fixed on the upper surface of the riser of T-shaped keyset of described clearance between open contacts adjusting apparatus；
Arc-extinguish chamber is a bottomless hollow cuboid, is divided into A area, B area and C area by dividing plate inside described arc-extinguish chamber, and
Each intra-zone is fixed with two arc extinguishing grid pieces, and described two arc extinguishing grid pieces are staggered relatively, described two arc extinguishing grid pieces
Distance is described dynamic touch bridge length 1.3 times, and arc-extinguish chamber is opening down and T-shaped switching that be located at two clearance between open contacts adjusting apparatus
On the riser of plate；
Each intra-zone all covers a described contact unit；And the dynamic bridge and quiet of touching of described contact unit
Reed is located between two arc extinguishing grid pieces staggered relatively.
For the device of AC contactor touch head material electric performance test, it also includes shock insulation base, and described keyset is solid
It is scheduled on the upper surface of shock insulation base；Horizontal sliding table is connected with the upper surface slide of shock insulation base.
For the device of AC contactor touch head material electric performance test, it also includes three Hall current sensings
Device, three No. two Hall current sensors, three Hall voltage sensors, signal conditioning circuit, data acquisition processing circuit and
Host computer；
Each Hall voltage sensor is used for contact voltage letter when a pair of moving contact of collection and static contact adhesive and disjunction
Number, and contact voltage signal when adhesive and disjunction is sent to signal conditioning circuit；
Each Hall current sensor contacts for a pair of moving contact of collection is tested with during disjunction with static contact adhesive
Coil current signal in device, and coil current signal when adhesive and disjunction is sent to signal conditioning circuit；
Each No. two Hall current sensor is used for contact electricity when a pair of moving contact of collection and static contact adhesive and disjunction
Stream signal, and contact current signal when adhesive and disjunction is sent to signal conditioning circuit；
Each piezoelectric quartz force sensor is used for force signal when a pair of moving contact of collection and static contact adhesive and disjunction, and
Force signal when adhesive and disjunction is sent to signal conditioning circuit；
Signal conditioning circuit is used for the contact voltage signal receiving, coil current signal, contact current signal and adhesive
Send to data acquisition processing circuit with force signal during disjunction；
Data acquisition processing circuit is used for coil electricity when contact voltage signal when adhesive and disjunction, adhesive and disjunction
Stream signal adhesive and contact current signal during disjunction and force signal are processed, and the unit for electrical property parameters obtaining after exporting process
Show to host computer.
Using the method for the device to test contact material electrical property for AC contactor touch head material electric performance test, should
Method includes：
Step one：A pair of moving contact to be measured and static contact are connected in the current supply circuit of resistive load；
Step 2：Adjustment horizontal sliding table and the position of vertical slide unit, make static contact to be measured and moving contact coaxial and to be measured
Static contact and the distance of moving contact reach contact and open away from setting value；
Step 3：Control coil energising, movable contact to be measured and the stationary contact adhesive of tested catalyst, Hall voltage senses
The contact voltage signal that device gathers during adhesive sends to signal conditioning circuit, tested during a Hall current sensor collection adhesive
Coil current signal in catalyst simultaneously sends this coil current signal to signal conditioning circuit；No. two Hall current sensors
Gather contact current signal when a pair of moving contact and static contact adhesive；Piezoelectric quartz force sensor gathers force signal during adhesive
And send described force signal to signal conditioning circuit；Signal after the conditioning of described signal conditioning circuit sends to data acquisition
Process circuit；
Step 4：The control coil power-off of tested catalyst, moving contact to be measured and static contact disjunction, Hall voltage senses
The contact voltage signal that device gathers during disjunction sends to signal conditioning circuit, tested during a Hall current sensor collection disjunction
Coil current signal in catalyst simultaneously sends this coil current signal to signal conditioning circuit；No. two Hall current sensors
Gather contact current signal when a pair of moving contact and static contact disjunction；Piezoelectric quartz force sensor gathers force signal during disjunction
And send described force signal to signal conditioning circuit；Signal after the conditioning of described signal conditioning circuit sends to data acquisition
Process circuit；
Step 5：Data acquisition processing circuit carries out processing the unit for electrical property parameters obtaining catalyst to the data receiving；Institute
The unit for electrical property parameters stating catalyst includes melting welding power, impact force, static pressure, closing time, turn-off time and arc time.
The present invention passes through sliding up and down of vertical slide unit, it is achieved thereby that the clearance between open contacts between static contact and moving contact
Adjust, solve existing A.C. contactor reliability-test equipment and do not enable the adjustable problem of clearance between open contacts.Dynamic touch bridge and
Static contact spring piece makes to change the moving contact of different contact materials and static contact is convenient, thus obtaining different contact materials further
Contact electrical property, meet existing A.C. contactor assay device simultaneously and cannot complete catalyst machinery adjustment parameter pair
The demand of the impact of its electrical property.The present disclosure additionally applies for the test of the life test of catalyst, shutoff and making capacity, short circuit
Connect the test with pitch capability.
Brief description
Fig. 1 is the part-structure figure of the described device for AC contactor touch head material electric performance test；
Fig. 2 is the overall structure figure of the described device for AC contactor touch head material electric performance test；
Fig. 3 is the side view of the present invention；
Fig. 4 is to touch the structure chart of bridge fixation hook；
Fig. 5 is to touch the structure chart of bridge；
Fig. 6 is tested catalyst and the dynamic structure chart touching bridge support block；
Fig. 7 is the structural representation of tested catalyst；
Fig. 8 is the structure chart of clearance between open contacts adjusting apparatus；
Fig. 9 is the structure chart of power measurement part；
Figure 10 is the cut-away view of Fig. 8；
Figure 11 is the structure chart of arc-extinguish chamber；
Figure 12 is the device circuit annexation figure described in specific embodiment five；
Force signal schematic diagram when Figure 13 disconnects for contact；
Figure 14 is force signal schematic diagram during the closing of contact；
Figure 15 is the contact voltage and contact current schematic diagram during the closing of contact；
Figure 16 is the contact voltage during the disconnection of contact and contact current schematic diagram；
The reference of in figure：Test A.C. contactor and its fixing device 1, clearance between open contacts adjusting apparatus 2, power Measurement portion
Part 3, shock insulation base 4, tested catalyst 5, keyset 6, dynamic touch bridge support block 7, dynamic touch bridge fixation hook 8, dynamic touch bridge 9, moving contact
10th, vertical slide unit 11, right angle fixed block 12, horizontal sliding table 13, T-shaped keyset 14, transverse slat 14-1, riser 14-2, polytetrafluoroethyl-ne
Alkene partiting thermal insulation cylinder 15, static contact spring piece connector 16, static contact spring piece 17, static contact 18, screw 19, screw 20, piezoquartz power sensing
Device 21, screw 22, arc extinguishing grid pieces 23, arc-extinguish chamber 24,25, three Hall voltage sensors 26 of Hall current sensor, signal are adjusted
Reason circuit 27, data acquisition processing circuit 28 and host computer 29；A represents A area；B represents B area；C represents C area；Carry contact 5-1, move
Iron core 5-2, coil 5-3, static iron core 5-4, spring 5-5 and shell 5-6.
Specific embodiment
Specific embodiment one, illustrate present embodiment referring to figs. 1 to Figure 11, described in present embodiment for handing over
Stream probe of contactor material electric performance test device, it includes tested catalyst 5, tested catalyst 5 include carry contact 5-1,
Dynamic iron core 5-2, coil 5-3, static iron core 5-4, spring 5-5 and shell 5-6；Dynamic iron core 5-2, static iron core 5-4 and load contact
5-1 is " E " shape, and described dynamic iron core 5-2 and static iron core 5-4 are staggered relatively, and the opening of dynamic iron core 5-2 and static iron core 5-4
Opening is just right；Coil 5-3 be located at just to the opening of dynamic iron core 5-2 and the opening of static iron core 5-4 in；Spring 5-5 places online
In the middle of circle 5-3；Carry the upper surface that is opening up and being fixed on described dynamic iron core 5-2 of contact 5-1, described load contact 5-1's is upper
Half part passes through the top of shell 5-6；Described dynamic iron core 5-2, coil 5-3, static iron core 5-4 and spring 5-5 are respectively positioned on shell 5-6
Inside；
This device also includes testing A.C. contactor and its fixing device 2, six power of 1, two clearance between open contacts adjusting apparatus
3, six static contact installation units of measurement part and arc-extinguish chamber 24；
Test A.C. contactor and its fixing device 1 include keyset 6 and three moving contact installation units, each moving contact
Installation unit includes one and moves tactile 7, dynamic tactile bridge fixation hook 8 of bridge support block and a dynamic tactile bridge 9；
Described tested catalyst 5 is fixed on the upper surface of keyset 6, and the lower surface of three moving contact installation units is all and quilt
The upper surface surveying the load contact 5-1 of catalyst 5 is adhesively fixed, and three moving contact installation units are longitudinally coaxial；
Dynamic bridge fixation hook 8, dynamic tactile bridge support block 7 and the dynamic bridge 9 that touches of touching in moving contact installation unit corresponds, described dynamic
Tactile bridge fixation hook 8 is mounted in corresponding dynamic tactile bridge support block 7, and corresponding dynamic tactile bridge 9 is mounted in described moving and touches bridge fixation hook 8
On,
Dynamic touch on bridge 9 body of a bridge each side have a moving contact installing hole, described moving contact installing hole is used for pacifying
Fill moving contact 10 to be measured；
Static contact installation unit includes politef partiting thermal insulation cylinder 15, static contact spring piece connector 16 and static contact spring piece 17；Quiet
Reed 17, static contact spring piece connector 16 and politef partiting thermal insulation cylinder 15 are from top to bottom fixedly connected sequentially；Static contact spring piece 17
Upper surface is provided with static contact installing zone, and described static contact installing zone is used for installing static contact 18 to be measured；
Three moving contact installation units and six static contact installation units constitute three groups of contact units；Every group of contact connects
Tactile unit includes a moving contact installation unit and two static contact installation units, and the dynamic tactile bridge 9 in moving contact installation unit
The moving contact installing hole of the body of a bridge left and right sides is just right with the static contact installing zone in static contact installation unit respectively；
Power measurement part 3 is fixed on the bottom of static contact installation unit, for measuring static contact 18 to be measured and moving contact
Force signal when 10 adhesives and disjunction；
Clearance between open contacts adjusting apparatus 2 include vertical slide unit 11, right angle fixed block 12, horizontal sliding table 13, T-shaped keyset 14；
The horizontal plane of right angle fixed block 12 is located on horizontal sliding table 13, and is slidably connected with this horizontal sliding table 13, and the one of vertical slide unit 11
Side is slidably connected with the vertical plane of described right angle fixed block 12, the transverse slat 14-1 of T-shaped keyset 14 and described vertical slide unit 11
Opposite side is fixedly connected；The riser 14-2 of T-shaped keyset 14 is horizontally disposed with；
Two clearance between open contacts adjusting apparatus 2 are located at the left and right two of described test A.C. contactor and its fixing device 1 respectively
Side, and mirror image setting；
Described power measurement part 3 is also fixed on the riser 14-2's of the T-shaped keyset 14 of described clearance between open contacts adjusting apparatus 2
Upper surface；
Arc-extinguish chamber 24 is a bottomless hollow cuboid, is divided into A area, B area and C by dividing plate inside described arc-extinguish chamber 24
Area, and each intra-zone is fixed with two arc extinguishing grid pieces 23, and described two arc extinguishing grid pieces 23 are staggered relatively, described two goes out
The distance of arc grid 23 is described dynamic touch bridge 9 length 1.3 times, and arc-extinguish chamber 24 is opening down and is located at two clearance between open contacts adjustment
On the riser 14-2 of the T-shaped keyset 14 of device 2；
Each intra-zone all covers a described contact unit；And the dynamic of described contact unit touches bridge 9 He
Static contact spring piece 17 is located between two arc extinguishing grid pieces 23 staggered relatively.
The present invention is using typical A.C. contactor as measurement object it is proposed that a kind of contact material for A.C. contactor
Material electric performance testing device and method, for measuring the actual electrical property with carrying in course of action of catalyst.Electrical property includes line
Loop current, contact voltage, contact current, melting welding power, impact force, static pressure, closing time, turn-off time, arc time and combustion
The parameters such as arc energy.The purposes of arc-extinguish chamber is extinguish safely the electric arc producing in three-phase contact breaking course.Wherein, arcing
Energy is to be multiplied the time to be done integrate by the voltage x current that arcing process is obtained to obtain, and its principle belongs to prior art.
The present invention passes through sliding up and down of vertical slide unit, it is achieved thereby that the clearance between open contacts between static contact and moving contact
Adjust, solve existing A.C. contactor measurement apparatus and do not enable the adjustable problem of clearance between open contacts.Dynamic tactile bridge 9 and static contact spring piece
17 moving contacts making the different contact materials of replacing and static contact are convenient, thus obtaining touching of different contact materials further
The electrical property of head, meets existing A.C. contactor assay device simultaneously and cannot complete catalyst machinery adjustment parameter to its electricity
The demand of the impact of performance.
Specific embodiment two, present embodiment be to described in specific embodiment one for AC contactor touch head material
The device of material electric performance test further illustrates, and in present embodiment, described power measurement part 3 is piezoelectric quartz force sensor
21.
Specific embodiment three, present embodiment be to described in specific embodiment one for AC contactor touch head material
The device of material electric performance test further illustrates, and in present embodiment, described described static contact spring piece 17 passes through screw 22 and quiet spring
Piece connector 16 connects, and described static contact spring piece connector 16 is connected with described politef partiting thermal insulation cylinder 15 by screw 20,
Described piezoelectric quartz force sensor 21 is connected with politef partiting thermal insulation cylinder 15 by screw 19.
Specific embodiment four, surveying for AC contactor touch head material electrical property according to specific embodiment one
The device of examination further illustrates, and in present embodiment, it also includes shock insulation base 4, and described keyset 6 is fixed on shock insulation base 4
Upper surface；Horizontal sliding table 13 is connected with the upper surface slide of shock insulation base 4.
The effect of shock insulation base 4 is shockproof.
Specific embodiment five, illustrate present embodiment with reference to Figure 12, present embodiment is to specific embodiment
The device for AC contactor touch head material electric performance test described in one further illustrates, and in present embodiment, it also wraps
Include three Hall current sensors 25, three No. two Hall current sensors 30, three Hall voltage sensors 26, signals
Modulate circuit 27, data acquisition processing circuit 28 and host computer 29；
Each Hall voltage sensor 26 is used for contact when a pair of moving contact 10 of collection and static contact 18 adhesive and disjunction
Voltage signal, and contact voltage signal when adhesive and disjunction is sent to signal conditioning circuit 27；
Each Hall current sensor 25 is used for quilt when a pair of moving contact 10 of collection and static contact 18 adhesive and disjunction
Survey the coil current signal in catalyst 5, and coil current signal when adhesive and disjunction is sent to signal conditioning circuit 27；
Each No. two Hall current sensor 30 is used for when a pair of moving contact 10 of collection and static contact 18 adhesive and disjunction
Contact current signal, and contact current signal when adhesive and disjunction is sent to signal conditioning circuit 27；
Each piezoelectric quartz force sensor 21 is used for power when a pair of moving contact 10 of collection and static contact 18 adhesive and disjunction
Signal, and force signal when adhesive and disjunction is sent to signal conditioning circuit 27；
Signal conditioning circuit 27 is used for the contact voltage signal receiving, coil current signal, contact current signal and suction
Close and send to data acquisition processing circuit 28 with force signal during disjunction；
Data acquisition processing circuit 28 is used for coil when contact voltage signal when adhesive and disjunction, adhesive and disjunction
Contact current signal when current signal, adhesive and disjunction and force signal are processed, and the electrical property obtaining after exporting process
Parameter shows to host computer 29.
Device of the present invention includes testing A.C. contactor and its fixing device, clearance between open contacts adjusting apparatus, power are surveyed
Amount part, shock insulation base and arc-extinguish chamber.By this device in conjunction with 25, three No. two Halls of three Hall current sensors
30, three Hall voltage sensors 26 of current sensor, signal conditioning circuit 27, data acquisition processing circuit 28 and host computer
29, not only can complete the impact test to A.C. contactor electric life and reliability for the different contact materials, can also realize simultaneously
The impact test to contact material electrical property for the parameters such as catalyst loading condition, clearance between open contacts.
Specific embodiment six, survey for AC contactor touch head material electrical property using described in specific embodiment five
The method of the device to test contact material electrical property of examination, the method includes：
Step one：A pair of moving contact to be measured and static contact are connected in the current supply circuit of resistive load；
Step 2：Adjustment horizontal sliding table 13 and the position of vertical slide unit 11, make static contact 18 to be measured and moving contact 9 same
Axle, and the distance of static contact 18 to be measured and moving contact 9 reaches contact and opens away from setting value；
Step 3：Control coil energising, movable contact 10 to be measured and stationary contact 18 adhesive of tested catalyst 5, Hall electricity
The contact voltage signal that pressure sensor 26 gathers during adhesive sends to signal conditioning circuit 27, and a Hall current sensor 25 is adopted
Collection adhesive when tested catalyst 5 in coil current signal and this coil current signal is sent to signal conditioning circuit 27；Two
Number Hall current sensor 30 gathers contact current signal when a pair of moving contact 10 and static contact 18 adhesive；Piezoquartz power passes
Sensor 21 gathers force signal during adhesive and sends described force signal to signal conditioning circuit 27；Through described signal conditioning circuit
Signal after 27 conditionings sends to data acquisition processing circuit 28；
Step 4：The control coil power-off of tested catalyst 5, moving contact 9 to be measured and static contact 18 disjunction, Hall voltage
The contact voltage signal that sensor 26 gathers during disjunction sends to signal conditioning circuit 27, and a Hall current sensor 25 gathers
Coil current signal in tested catalyst 5 during disjunction simultaneously sends this coil current signal to signal conditioning circuit 27；No. two
Hall current sensor 30 gathers contact current signal when a pair of moving contact 10 and static contact 18 disjunction；Piezoquartz power senses
Device 21 gathers force signal during disjunction and sends described force signal to signal conditioning circuit 27；Through described signal conditioning circuit 27
Signal after conditioning sends to data acquisition processing circuit 28；
Step 5：Data acquisition processing circuit 28 carries out processing the unit for electrical property parameters obtaining catalyst to the data receiving；
The unit for electrical property parameters of described catalyst includes melting welding power, impact force, static pressure, closing time, turn-off time and arc time.
The control coil of tested catalyst belongs to a part for the current supply circuit of resistive load, is prior art；Here
Control coil is coil 5-1.
Specific embodiment seven, illustrate present embodiment with reference to Figure 13, present embodiment is to specific embodiment
The method using the device to test contact material electrical property for AC contactor touch head material electric performance test described in six is entered
One step explanation, in present embodiment, the data acquisition processing circuit 28 described in step 5 carries out processing to the data receiving
The method of the melting welding power in the unit for electrical property parameters of catalyst is：
Step C0, to piezoelectric quartz force sensor calibrate；
Step C1, the force signal being obtained according to the device for AC contactor touch head material electric performance test, and obtain
The force signal during disjunction of contact, described force signal is located in rectangular coordinate system, and abscissa is the time；
Step C2, navigate to the voltage alternating of force signal by threshold decision method along region；
Step C3, by arithmetical method, force signal is filtered, and obtains filtered force signal；
Step C4, navigate to the minima of described force signal by minima method；
Step C5, the minima to the force signal described in step C4 take absolute value, as the size of melting welding power.
Specific embodiment eight, illustrate present embodiment with reference to Figure 13, present embodiment is to specific embodiment
The method using the device to test contact material electrical property for AC contactor touch head material electric performance test described in six is entered
One step explanation, in present embodiment, the data acquisition processing circuit 28 described in step 5 carries out processing to the data receiving
The method of the static pressure in the unit for electrical property parameters of catalyst is：
Step A1, the force signal being obtained according to the device for AC contactor touch head material electric performance test, and obtain
The force signal during disjunction of contact, described force signal is located in rectangular coordinate system, and abscissa is the time；
Step A2, navigate to the invariant region of force signal by threshold decision method, the power of the invariant region of this force signal
Size is static pressure.
Specific embodiment nine, illustrate present embodiment with reference to Figure 14, present embodiment is to specific embodiment
The method using the device to test contact material electrical property for AC contactor touch head material electric performance test described in six is entered
One step explanation, in present embodiment, the data acquisition processing circuit 28 described in step 5 carries out processing to the data receiving
The method of the impact force in the unit for electrical property parameters of catalyst is：
Step B1, the force signal being obtained according to the device for AC contactor touch head material electric performance test, and obtain
The force signal during adhesive of contact, described force signal is located in rectangular coordinate system, and abscissa is the time；
Step B2, navigate at the maximum of force signal by maximum value process, described maximum is the size of impact force.
Specific embodiment ten, illustrate present embodiment with reference to Figure 15 and Figure 16, present embodiment is to concrete reality
Apply employing described in mode six for the device to test contact material electrical property of AC contactor touch head material electric performance test
Method further illustrates, and in present embodiment, the data acquisition processing circuit 28 described in step 5 is carried out to the data receiving
Process the closing time obtaining in the unit for electrical property parameters of catalyst and the method for turn-off time is as follows：
The acquisition methods of described closing time are：
Step D1, the contact voltage signal being obtained according to the device for AC contactor touch head material electric performance test；
Described contact voltage signal is located in rectangular coordinate system, and abscissa is the time；
Step D2, navigate to the alternation of contact voltage signal by threshold decision method along mutation time；From sending catalyst
The time that closure signal starts to alternation edge occurs is closing time；
The acquisition methods of described turn-off time are：
Step E1, the shock current signal being obtained according to the device for AC contactor touch head material electric performance test；
Described contact current signal is located in rectangular coordinate system, and abscissa is the time；
Step E2, navigate to the alternation of contact current signal by threshold decision method along mutation time；From sending catalyst
The time that cut-off signal starts to alternation edge occurs is turn-off time.
Specific embodiment 11, illustrate present embodiment with reference to Figure 16, present embodiment is to specific embodiment party
Employing described in formula six is for the method for the device to test contact material electrical property of AC contactor touch head material electric performance test
Further illustrate, in present embodiment, the data acquisition processing circuit 28 described in step 5 is processed to the data receiving
The method obtaining the arc time in the unit for electrical property parameters of catalyst is：
Step F1, according to for AC contactor touch head material electric performance test the contact voltage signal that obtains of device and
Shock current signal；Described contact voltage signal and shock current signal are located in rectangular coordinate system, and abscissa is the time；
Step F2, navigate to the alternation of contact voltage signal by threshold decision method along mutation time and contact current signal
Alternation along mutation time；From send catalyst closure signal start to alternation along occur time be the arc time.
Specific embodiment 12, present embodiment are an embodiment.
According to standard GB/T 14048.1, device of the present invention may make contact device life test, turn off with
The test of the test of making capacity, short circuit making and pitch capability, below taking life test as a example, provides the A.C. contactor life-span
The method of the electric performance test of test.
Step one：A pair of moving contact to be measured and static contact are connected in the current supply circuit of resistive load；
Step 2：Adjustment horizontal sliding table 13 and the position of vertical slide unit 11, make static contact 18 to be measured and moving contact 9 same
Axle, and the distance of static contact 18 to be measured and moving contact 9 reaches contact and opens away from setting value；
Step 3：Control coil energising, movable contact 10 to be measured and stationary contact 18 adhesive of tested catalyst 5, Hall electricity
The contact voltage signal that pressure sensor 26 gathers during adhesive sends to signal conditioning circuit 27,
Coil current signal in tested catalyst 5 when number Hall current sensor 25 gathers adhesive by this coil electricity
Stream signal sends to signal conditioning circuit 27；No. two Hall current sensors 30 gather a pair of moving contact 10 and static contact 18 adhesive
When contact current signal；
Piezoelectric quartz force sensor 21 gathers force signal during adhesive and sends described force signal to signal conditioning circuit
27；Signal after the conditioning of described signal conditioning circuit 27 sends to data acquisition processing circuit 28；
Step 4：The control coil power-off of tested catalyst 5, moving contact 9 to be measured and static contact 18 disjunction, Hall voltage
The contact voltage signal that sensor 26 gathers during disjunction sends to signal conditioning circuit 27,
Coil current signal in tested catalyst 5 when number Hall current sensor 25 gathers disjunction by this coil electricity
Stream signal sends to signal conditioning circuit 27；No. two Hall current sensors 30 gather a pair of moving contact 10 and static contact 18 disjunction
When contact current signal；
Piezoelectric quartz force sensor 21 gathers force signal during disjunction and sends described force signal to signal conditioning circuit
27；Signal after the conditioning of described signal conditioning circuit 27 sends to data acquisition processing circuit 28；
Step 5：Data acquisition processing circuit 28 carries out processing the unit for electrical property parameters obtaining catalyst to the data receiving；
The unit for electrical property parameters of described catalyst includes melting welding power, impact force, static pressure, closing time, turn-off time and arc time；
Step 6：Repeat the above steps one to step 6, until catalyst or contact are damaged and cannot be operating normally, and
Record catalyst and the life-span of contact, the wear extent of measurement contact.
The figure that Figure 13 to Figure 16 obtains for the present embodiment, from the mark of in figure, can know specific embodiment further
The acquisition modes of the method described in seven to ten one.
Claims (10)
1. it is used for the device of AC contactor touch head material electric performance test, it includes tested catalyst (5), tested catalyst
(5) include carrying contact (5-1), dynamic iron core (5-2), coil (5-3), static iron core (5-4), spring (5-5) and shell (5-
6)；Dynamic iron core (5-2), static iron core (5-4) and load contact (5-1) are " E " shape, described dynamic iron core (5-2) and static iron core (5-4)
Staggered relatively, and the opening of the opening of dynamic iron core (5-2) and static iron core (5-4) is just right；Coil (5-3) be located at just to dynamic iron core
(5-2) in opening and the opening of static iron core (5-4)；Spring (5-5) is placed in the middle of coil (5-3)；Carry opening of contact (5-1)
Mouth upward and is fixed on the upper surface of described dynamic iron core (5-2), and the top half of described load contact (5-1) passes through shell (5-6)
Top；Described dynamic iron core (5-2), coil (5-3), static iron core (5-4) and spring (5-5) are respectively positioned on the inside of shell (5-6)；
It is characterized in that, this device also includes testing A.C. contactor and its fixing device (1), two clearance between open contacts adjusting apparatus
(2), six power measurement parts (3), six static contact installation units and arc-extinguish chamber (24)；
Test A.C. contactor and its fixing device (1) include keyset (6) and three moving contact installation units, each moving contact
Installation unit includes one and moves tactile bridge support block (7), a dynamic tactile bridge fixation hook (8) and a dynamic tactile bridge (9)；
Described tested catalyst (5) is fixed on the upper surface of keyset (6), and the lower surface of three moving contact installation units is all and quilt
The upper surface surveying the load contact (5-1) of catalyst (5) is adhesively fixed, and three moving contact installation units are longitudinally coaxial；
Dynamic bridge fixation hook (8), dynamic tactile bridge support block (7) and the dynamic bridge (9) that touches of touching in moving contact installation unit corresponds, described
Move tactile bridge fixation hook (8) to be mounted in corresponding dynamic tactile bridge support block (7), corresponding dynamic tactile bridge (9) is mounted in described moving and touches bridge
On fixation hook (8),
Dynamic touch on bridge (9) body of a bridge each side have a moving contact installing hole, described moving contact installing hole is used for installing
Moving contact (10) to be measured；
Static contact installation unit includes politef partiting thermal insulation cylinder (15), static contact spring piece connector (16) and static contact spring piece (17)；
Static contact spring piece (17), static contact spring piece connector (16) and politef partiting thermal insulation cylinder (15) are from top to bottom fixedly connected sequentially；Quiet
The upper surface of reed (17) is provided with static contact installing zone, and described static contact installing zone is used for installing static contact (18) to be measured；
Three moving contact installation units and six static contact installation units constitute three groups of contact units；Every group of contact list
Unit includes a moving contact installation unit and two static contact installation units, and dynamic tactile bridge (9) bridge in moving contact installation unit
The moving contact installing hole of the body left and right sides is just right with the static contact installing zone in static contact installation unit respectively；
Power measurement part (3) is fixed on the bottom of static contact installation unit, for measuring static contact (18) to be measured and moving contact
(10) adhesive and force signal during disjunction；
Clearance between open contacts adjusting apparatus (2) include vertical slide unit (11), right angle fixed block (12), horizontal sliding table (13), T-shaped keyset
(14)；The horizontal plane of right angle fixed block (12) is located on horizontal sliding table (13), and is slidably connected with this horizontal sliding table (13), vertically
The side of slide unit (11) is slidably connected with the vertical plane at described right angle fixed block (12), the transverse slat (14-1) of T-shaped keyset (14)
It is fixedly connected with the opposite side of described vertical slide unit (11)；The riser (14-2) of T-shaped keyset (14) is horizontally disposed with；
Two clearance between open contacts adjusting apparatus (2) are located at the left and right two of described test A.C. contactor and its fixing device (1) respectively
Side, and mirror image setting；
Described power measurement part (3) is also fixed on the riser (14- of the T-shaped keyset (14) of described clearance between open contacts adjusting apparatus (2)
2) upper surface；
Arc-extinguish chamber (24) is a bottomless hollow cuboid, is divided into A area, B area and C by dividing plate inside described arc-extinguish chamber (24)
Area, and each intra-zone is fixed with two arc extinguishing grid pieces (23), and described two arc extinguishing grid pieces (23) are staggered relatively, described two
The distance of individual arc extinguishing grid pieces (23) is described dynamic touch bridge (9) length 1.3 times, and arc-extinguish chamber (24) is opening down and touches positioned at two
Head is opened on the riser (14-2) away from the T-shaped keyset (14) of adjusting apparatus (2)；
Each intra-zone all covers a described contact unit；And the dynamic bridge (9) and quiet of touching of described contact unit
Reed (17) is located between two arc extinguishing grid pieces (23) staggered relatively.
2. the device for AC contactor touch head material electric performance test according to claim 1 is it is characterised in that institute
Stating power measurement part (3) is piezoelectric quartz force sensor (21).
3. the device for AC contactor touch head material electric performance test according to claim 1 it is characterised in that it
Also include shock insulation base (4), described keyset (6) is fixed on the upper surface of shock insulation base (4)；Horizontal sliding table (13) and shock insulation bottom
The upper surface slide of seat (4) connects.
4. the device for AC contactor touch head material electric performance test according to claim 1 it is characterised in that it
Also include three No. one Hall current sensor (25), three No. two Hall current sensors (30), three Hall voltage sensings
Device (26), signal conditioning circuit (27), data acquisition processing circuit (28) and host computer (29)；
Each Hall voltage sensor (26) is used for touching when a pair of moving contact (10) of collection and static contact (18) adhesive and disjunction
Point voltage signal, and contact voltage signal when adhesive and disjunction is sent to signal conditioning circuit (27)；
When each Hall current sensor (25) is used for a pair of moving contact (10) of collection and static contact (18) adhesive and disjunction
Coil current signal in tested catalyst (5), and coil current signal when adhesive and disjunction is sent to signal condition electricity
Road (27)；
When each No. two Hall current sensor (30) is used for a pair of moving contact (10) of collection and static contact (18) adhesive and disjunction
Contact current signal, and contact current signal when adhesive and disjunction is sent to signal conditioning circuit (27)；
Each piezoelectric quartz force sensor (21) is used for when a pair of moving contact (10) of collection and static contact (18) adhesive and disjunction
Force signal, and force signal when adhesive and disjunction is sent to signal conditioning circuit (27)；
Signal conditioning circuit (27) is used for the contact voltage signal receiving, coil current signal, contact current signal and adhesive
Send to data acquisition processing circuit (28) with force signal during disjunction；
Data acquisition processing circuit (28) is used for coil electricity when contact voltage signal when adhesive and disjunction, adhesive and disjunction
Stream signal, adhesive and contact current signal during disjunction and force signal are processed, and the electrical property ginseng obtaining after exporting process
Number is to host computer (29) display.
5. adopt the device to test contact material electricity for AC contactor touch head material electric performance test described in claim 4
The method of performance is it is characterised in that the method includes：
Step one：A pair of moving contact to be measured and static contact are connected in the current supply circuit of resistive load；
Step 2：Adjustment horizontal sliding table (13) and the position of vertical slide unit (11), make static contact (18) to be measured and moving contact
(10) coaxial, and the distance of static contact (18) to be measured and moving contact (10) reaches contact and opens away from setting value；
Step 3：Control coil energising, moving contact (10) to be measured and static contact (18) adhesive of tested catalyst (5), Hall
The contact voltage signal that voltage sensor (26) gathers during adhesive sends to signal conditioning circuit (27), a Hall current sensing
Device (25) gather adhesive when tested catalyst (5) in coil current signal and this coil current signal is sent to signal condition
Circuit (27)；No. two Hall current sensors (30) gather contact current when a pair of moving contact (10) and static contact (18) adhesive
Signal；Piezoelectric quartz force sensor (21) gathers force signal during adhesive and sends described force signal to signal conditioning circuit
(27)；Signal after described signal conditioning circuit (27) conditioning sends to data acquisition processing circuit (28)；
Step 4：The control coil power-off of tested catalyst (5), moving contact (10) to be measured and static contact (18) disjunction, Hall
The contact voltage signal that voltage sensor (26) gathers during disjunction sends to signal conditioning circuit (27), a Hall current sensing
Device (25) gather disjunction when tested catalyst (5) in coil current signal and this coil current signal is sent to signal condition
Circuit (27)；No. two Hall current sensors (30) gather contact current when a pair of moving contact (10) and static contact (18) disjunction
Signal；Piezoelectric quartz force sensor (21) gathers force signal during disjunction and sends described force signal to signal conditioning circuit
(27)；Signal after described signal conditioning circuit (27) conditioning sends to data acquisition processing circuit (28)；
Step 5：Data acquisition processing circuit (28) carries out processing the unit for electrical property parameters obtaining catalyst to the data receiving；Institute
The unit for electrical property parameters stating catalyst includes melting welding power, impact force, static pressure, closing time, turn-off time and arc time.
6. method according to claim 5 is it is characterised in that the data acquisition processing circuit (28) described in step 5 is right
The data receiving carries out processing the method for the melting welding power in the unit for electrical property parameters obtaining catalyst：
Step C0, to piezoelectric quartz force sensor calibrate；
Step C1, the force signal being obtained according to the device for AC contactor touch head material electric performance test, and obtain contact
Force signal during disjunction, described force signal is located in rectangular coordinate system, and abscissa is the time；
Step C2, navigate to the voltage alternating of force signal by threshold decision method along region；
Step C3, by arithmetical method, force signal is filtered, and obtains filtered force signal；
Step C4, navigate to the minima of described force signal by minima method；
Step C5, the minima to the force signal described in step C4 take absolute value, as the size of melting welding power.
7. method according to claim 5 is it is characterised in that the data acquisition processing circuit (28) described in step 5 is right
The data receiving carries out processing the method for the static pressure in the unit for electrical property parameters obtaining catalyst：
Step A1, the force signal being obtained according to the device for AC contactor touch head material electric performance test, and obtain contact
Force signal during disjunction, described force signal is located in rectangular coordinate system, and abscissa is the time；
Step A2, navigate to the invariant region of force signal by threshold decision method, the size of the power of the invariant region of this force signal
It is static pressure.
8. method according to claim 5 is it is characterised in that the data acquisition processing circuit (28) described in step 5 is right
The data receiving carries out processing the method for the impact force in the unit for electrical property parameters obtaining catalyst：
Step B1, the force signal being obtained according to the device for AC contactor touch head material electric performance test, and obtain contact
Force signal during adhesive, described force signal is located in rectangular coordinate system, and abscissa is the time；
Step B2, navigate at the maximum of force signal by maximum value process, described maximum is the size of impact force.
9. method according to claim 5 is it is characterised in that the data acquisition processing circuit (28) described in step 5 is right
The data receiving carries out processing closing time in the unit for electrical property parameters obtaining catalyst and the method for turn-off time is as follows：
The acquisition methods of described closing time are：
Step D1, the contact voltage signal being obtained according to the device for AC contactor touch head material electric performance test；Described
Contact voltage signal is located in rectangular coordinate system, and abscissa is the time；
Step D2, navigate to the alternation of contact voltage signal by threshold decision method along mutation time；Close from sending catalyst
The time that signal starts to alternation edge occurs is closing time；
The acquisition methods of described turn-off time are：
Step E1, the shock current signal being obtained according to the device for AC contactor touch head material electric performance test；Described
Contact current signal is located in rectangular coordinate system, and abscissa is the time；
Step E2, navigate to the alternation of contact current signal by threshold decision method along mutation time；Disconnect from sending catalyst
The time that signal starts to alternation edge occurs is turn-off time.
10. method according to claim 5 is it is characterised in that the data acquisition processing circuit (28) described in step 5
The data receiving is carried out processing the method for the arc time in the unit for electrical property parameters obtaining catalyst and is：
Step F1, according to for the contact voltage signal that obtains of device of AC contactor touch head material electric performance test and electric shock
Current signal；Described contact voltage signal and shock current signal are located in rectangular coordinate system, and abscissa is the time；
Step F2, navigate to the friendship of the alternation of contact voltage signal along mutation time and contact current signal by threshold decision method
Become along mutation time；From send catalyst closure signal start to alternation along occur time be the arc time.
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