CN205407631U - JX motor voltage -reduction starting multifunctional controller - Google Patents

Abstract

JX motor voltage -reduction starting multifunctional controller relates to electromagnetic type ampere meter and motor voltage -reduction starting controlling means, characterized by: utilize the motor to start the characteristic of heavy current and trouble overcurrent, the mutually supporting of the electric current pointer of establishing ties through the current transformer secondary and sensor to reaching the meticulous design to control circuit such as relay K1, K2, K3, delay circuit T1, T2, button N1, N2, converting the total head operation naturally into behind messenger's motor voltage -reduction starting, it has big trouble to overflow the purpose that open circuit is guaranteed in time delay arrival at the motor in operation to reach in addition, still steerable motor starts and stops. Can not only thoroughly improve the unfinished big current switchover of start -up who exists, overtime conversion motor in the current control technique of motor voltage -reduction starting at subnormal voltage operation and the low defect of over -current protection efficiency, can also replace its numerous superfluous electrical apparatus material, retrench its loaded down with trivial details preparation process. Be applicable to alternating current 220V, the 380V circuit composite control to big -and -middle -sized motor voltage -reduction starting.

Description

JX motor reduced-voltage starting multifunctional controller

Technical field:

This utility model relates to a kind of electromagnetic type ammeter and motor step-down starting controller；It is characterized in that: utilize the characteristic of the big electric current of electric motor starting and fault overcurrent, by the electric current pointer of Current Transformer Secondary series connection and cooperating of sensor, and well-designed to control circuit, be converted to natural science total head after making electric machine step-down starting to run, and reach have major break down overcurrent time delay to arrive the purpose guaranteeing disconnecting circuit in motor rotation；Also can control startup and the stopping of motor.The control circuit Comprehensive Control to large and medium motor reduced-voltage starting suitable in alternating current 220V, 380V.

Background technology:

At present, to the startup people of large and medium-sized motor conventional self-coupling voltage reducing, star triangle blood pressure lowering, resistance reduced-voltage starting etc..Control process is: fill a time relay, auxiliary reclay, startup and stop button etc. in motor secondary circuit ...；The time relay manually sets the startup time, arrives with the time set after electric machine step-down starting and be converted to total head operation.This control conversion regime not only operation is loaded down with trivial details, waste appliance material, and also has certain technological deficiency.Technological deficiency is: the startup having just converted the big not electric current conversion of startup time, and the motor that makes having been started up for a long time complete reconvert also having is in subnormal voltage operation state；Therefore, both situations are that motor, starting device or manufacturing machine all can cause very big harm.Light, the heavy load starting of motor, varying environment is temperature actuated and self performance etc.. many different factors, the startup time is all do not wait；The startup time being difficult to find accurately required for motor is manually set.Also have a kind of Artificial Control, not only time-consuming but also bother, it is easy to produce maloperation；Once, operator think that converted attribute only starts and not converted result a big motor of 220kW is burnt out by mistake for my personal experience.In order to solve startup and the control problem of big motor, people have developed the sci-tech product of advanced person by fair means or foul: converter, soft initiator, PLC programming etc.；But this series products involves great expense, wide many ordinary enterprises large and middle size motors still use above-mentioned reduced-voltage starting mode and above-mentioned existing control technology.Single with regard to for electric machines control technology, people should develop science and technology product novel, low-cost high-efficiency energy and go to replace it, eradicate it！My recent utility model patent ZL201320048560.5JX motor reduced-voltage starting energy-saving converter is exactly good electric machine step-down starting controller, but function singleness.Allow it can be widely available application also need to further redevelopment, perfect again.

In use, because overload, phase shortage burnout phenomenon are very serious, the electric motor protecting product supplied in the market is also undesirable, common are JR type thermorelay, comprehensive protection device etc. for big motor.The former uses in the motor of more than 75kW power is at secondary line, motor overcurrent is protected, and its sensitivity is relatively low, does not often have intended protected effect；The latter's current sampling is sometimes up to less than its current-responsive value, being added to by load and could be debugged by protector under 380V normal voltage after being fully loaded with；Both defective.Also having people in succession to propose some good schemes, if my utility model patent ZL200820033636.6B Multifunctional current meter is exactly wherein a kind of preferably, but its cost is slightly higher and function singleness, and motor Comprehensive Control is had certain limitation.

Summary of the invention:

The purpose of this utility model is aiming at the solution that in above-mentioned motor control technologies, the defect of existence is proposed.

This utility model solves its technical problem and be the technical scheme is that

1, this utility model JX motor reduced-voltage starting multifunctional controller, it includes the solenoid of known electromagnetic type 42L6 type ammeter, determines ferrum, dynamic ferrum and associated pointer；It is characterized in that: include the housing of installation dimension identical with 42L6 type ammeter; housing includes the mounting groove of bottom, upper cover, stage casing casing and casing inwall wiring board; the panel that upper cover is transparent is that O point becomes to have on the hypotenuse line of an angle of 90 degrees one group of oblique down scale according to needle pivot; lower left is for starting key hole and the hole that stops key; bottom has a corresponding inclined hole groove parallel with the oblique scale of panel, bottom outerplanar is arranged have electric current that button is set, protection time delay arranges the dress head of knob and 8 outfans；One sensor is set in housing, sensor is cylinder, there is gear pin at its top, has a thread spindle below, one block of relay circuit plate and its plug-in unit relay K 1, K2, K3 and contact K1a is normally opened, K1b is normally opened, K1c is normally opened, K2a is normally opened, K2b is normally opened, K2b is normally closed, K3a is normally closed, K3b is normally closed, also include a piece of cloth and put the electronic circuit board of two groups of delay circuits of T1, T2 and above light emitting diode D1, D2, button N1, button N2；Connecting relation: 1), electric current arranges button and sensor and joins together and concentric circular through thread spindle, shaft coupling between the two is made to be in bottom inclined hole groove, outside bottom, migration current arranges the gear pin button adjusting joint sensor and top cover thereof and the mutual alignment of oblique down scale on panel, and pointer can with sensor close to so as to turn in hunting range；2), the pin of 8 lead-out terminals insert in 8 rectangular stannum holes on the right of the relay circuit plate in housing from bottom preformed hole, by being welded to connect；3), the N1 button on electronic circuit board is micro-from the actuating hole of top cover of faceplate exposes that plate face, N2 button are micro-from stop aperture exposes plate face；4), the normally opened one end of K1a, the normally opened one end of K2a, N2 a end in parallel with outfan 2-L, the normally opened other end of K1a couples with outfan 1, the normally opened other end of K2a couples with outfan 4, and the normally closed one end of K3a couples with outfan 5, and the normally closed other end of K3a couples with outfan 6；5), the b end of N2 and K1 one end, the normally opened one end of K1b, the normally opened one end of K1c, K2b normally-open normally-close common port are in parallel, the K1 other end and sensor one end, N1 one end are in parallel, the normally opened other end of K1b and the normally opened other end of K2b, the normally closed one end of K3b, D2 one end are in parallel, the normally closed other end of K3b is in parallel with the L end of K2 one end, T1, the K2 other end couples with the Z end of T1, the normally closed other end of K2b couples with D1 one end, and the normally opened other end of K1c is in parallel with the L end of K3 one end, T2, and the K3 other end couples with the Z end of T2；6), the N1 other end, the sensor other end, the N end of T1 and T2, the D1 other end, the D2 other end are in parallel with outfan 3-N；7), solenoid two ends couples with outfan 7 and outfan 8 respectively.

2, this utility model, built-in sensors, it includes known cylindrical shell, the wiring board of shell vivo devices and electronic device；It is characterized in that: below cylinder sensor There band gear pin, bottom, threaded shaft, lead-out wire are in bottom side, top cover keeping off pin and is vertically connected with top cover surface concentric circular, thread spindle is vertically connected with bottom face concentric circular below bottom.

3, this utility model, it is characterised in that: include one piece of the right be arranged above and below be labeled as 1,2-L, 3-N, 4,5,6,7,88 relay circuit plates with the rectangular stannum hole of size；The long 97mm of wiring board, wide 28mm, thick 2mm, the long 4mm in stannum hole, wide 1mm, 8 stannum holes are 80 ± 1mm plus spacing overall length；The jack of 27 rectangular stannum holes placed in the middle, front respectively relay K 1, K2, K3 and their contacts from top to bottom, 5 little stannum holes D2, b, a, D1, N from left to right of top, centre-to-centre spacing 2.5mm between them, little stannum hole, two, upper right side N, Y from left to right, 5 little stannum holes L1, L2, Z1, Z2, N1 from left to right of lower section, the centre-to-centre spacing 2.5mm between them；According to 4 in claim 1), 5), 6), 7) connecting relation wiring；All stannum holes are all plugged corresponding electric elements and are welded to connect；This plate is arranged in housing lower-left layer.

4, this utility model, it is characterised in that: include one piece of electronic circuit board, its long 106mm, wide 30mm, thick 1.6mm, arrange two groups of known delay circuits above, be set as T1 and T2；5 little stannum holes D2, b, a, D1, N from left to right of top, corresponding with the little stannum hole, 5, top of relay circuit plate；5 little stannum holes of lower left are L1, L2, Z1, Z2, N1 from top to bottom, corresponding with the little stannum hole, 5, lower section of relay circuit plate；Upper right side is plug-in unit stannum hole D1, D2 from top to bottom, and D2 Xi Kong center to plate body top is less than 28mm；Two groups of plug-in unit stannum holes of underface are button N1, button N2 from left to right；Connecting up in conjunction with connecting relation corresponding to relay circuit plate, all stannum holes are all plugged corresponding electronic component and are welded to connect；This plate is arranged in housing upper left layer.

5, this utility model, it is characterised in that: upper cover is transparent panel, and panel has current range scale, and its graduation position of different size, current range value are all coincide with the panel of known 42L6 type ammeter same specification；The lower right of current range scale also has one group of oblique down scale paralleled with bottom inclined hole groove, and each down scale is corresponding with the current range scale of its equivalence is being on the same oblique line of O point according to needle pivot；There are failure warning, power supply, operation printed words in upper left side, plate face；Liang Ge hole, lower left is left actuating hole, right stop aperture.

6, this utility model, it is characterised in that: on bottom outerplanar by right indicia be 1,2-L, the dress head of 8 outfans of 3-N, 4,5,6,7,8 and circuit for controlling motor wiring diagram；Have one group of oblique scale parallel with bottom inclined hole groove and on panel oblique down scale and current values consistent, button is set along bottom inclined hole groove migration current electric current anchor point can be set on oblique scale；The left side arranges knob and time scale face arranged above with protection time delay.

Such scheme, not only thoroughly improves the defect existed in the existing control technology of motor reduced-voltage starting, moreover it is possible to replace its all numerous superfluous appliance materials, can simplify again its loaded down with trivial details manufacturing process.Suitable in alternating current 220V, the 380V circuit Comprehensive Control to large and medium motor reduced-voltage starting.

Accompanying drawing illustrates:

Below in conjunction with drawings and Examples, this utility model is further illustrated.

Fig. 1 is this utility model internal structure principle.

Fig. 2 is the shape of this utility model built-in sensors, architectural feature.

Fig. 3 is the feature of this utility model built-in electronic wiring board.

Fig. 4 is the positive feature of the built-in relay circuit plate of this utility model.

Fig. 5 is the back side feature of the built-in relay circuit plate of this utility model.

Fig. 6 is the feature of this utility model top cover of faceplate.

Fig. 7 is the outer region feature of this utility model bottom and motor AC220V control connection principle.

Fig. 8 is the outer region feature of this utility model bottom and motor AC380V control connection principle.

Fig. 9 is the embodiment that motor auto-coupling voltage-reduction starting is controlled by this utility model.

Figure 10 is the embodiment that motor Y/ Δ reduced-voltage starting is controlled by this utility model.

Each element title and code name thereof in Fig. 1 to Figure 10: 8 output terminations respectively 1, 2-L, 3-N, 4, 5, 6, 7, 8, sensor 9, pointer 10, thread spindle 11 below sensor bottom, inclined hole groove 12, dynamic ferrum 13, determine ferrum 14, solenoid 15, relay K 1, K2, K3, relay contact K1a is normally opened, K1b is normally opened, K1c is normally opened, K2a is normally opened, K2b is normally opened, K2b is normally closed, K3a is normally closed, K3b is normally closed, delay circuit T1, T2, start button N1, stop key N2, oblique down scale 16 on top cover of faceplate, sensor top cover gear pin 17, current range 18, electric current arranges button 19, protection setting knob 20, outfan dress head and secondary circuit wiring Figure 21.

Detailed description of the invention:

In conjunction with Fig. 1 to Figure 10, broken box is this utility model housing；Outfan 7 and outfan 8 are series at Current Transformer Secondary side, and 10,13,14,15 in figure are known technologies.Electric current arranges button 19 and joins together and concentric circular with sensor 9 and gear pin 17 through thread spindle 11, dials 19 and makes 9 to move in inclined hole groove 12,17 below panel with 16 for marker locking electric current transfer point, be also over-current protection point；10 arbitrarily swing between zero graduation is to 17, and during big electric current, 17 block 10 and are not deviated to the right.According to Fig. 1, first pressing N1 and be energized to K1, the normally opened Guan Bi of K1a controls electric motor starting by outfan 1, and starting current is big, and 10 swing to 17 sensors 9 turns on, and unclamps N1, and sensor 9 makes K1 continue energising, and normally opened the continuing of K1a closes；The normally opened Guan Bi of K1b makes T1 be energized short time delay, and T1 time delay arrives that to make K2 obtain electric, and the normally opened Guan Bi of K2a makes motor secondary run circuit front-end by outfan 4, first electric, the normally opened Guan Bi self-locking of K2b.Motor natural starting terminates electric current reduction 10 and separates the normally opened disconnection of K1 dead electricity K1a with 9, and according to Fig. 9, Figure 10, motor, the rear end of secondary operation circuit also obtains the main circuit of electric forming circuit controls motor and is connected into full voltage operation；This start conversion sheerly naturally automatically conversion, gentle do not damage power equipment.In the normally closed front end being connected on circuit for controlling motor of K3a or end, motor have overload, phase shortage protect；To repeat motor overcurrent is protected in the normally closed K2 of the being connected on circuit of K3b.According to the overload capacity that the over current value formerly set and motor can bear, time between the time delay that knob 20 sets electric motor protecting；During motor overcurrent, 10 and 9 obtain electric close to K1c normally opened Guan Bi T2; it is glitch motor still normal operation in short-term in the time range arranged; in this way major break down and continue; 10 and 9 is close all the time; T2 time delay arrives K3 and obtains its normally closed disconnection electric; because the dead electricity of control circuit makes the main circuit of motor disconnect, thus reaching the purpose of protection motor.By N2 to motor power-off.

In Fig. 9, Figure 10, KM1, KM2, KM3 are A.C. contactors, and ac contactor coil voltage is to be 380V in 220V, Figure 10 in fig .9.

The wiring of motor secondary circuit in Fig. 9, Figure 10, with reference to 21 in Fig. 7, Fig. 8；Outfan 7 and 8 is series at current transformer TA secondary side, and outfan 2-L phase-connecting wire L1, outfan 3-N meets power supply N.In Fig. 9, KM3 is normally closed be connected on outfan 1 in parallel with KM1, KM2 after start-up circuit in, in the normally closed operation circuit being connected on KM3 of KM2, outfan 5 and 6 be connected on after KM1, KM2, KM3 end parallel connection with zero line N phase between.In Figure 10, in the normally closed start-up circuit being connected on outfan 1 and KM2 of KM3；The normally opened one end of KM2 couples with outfan 2-L, and the normally opened other end of KM2, KM1 one end, the normally closed one end of KM2 are in parallel with outfan 4, and the normally closed other end of KM2 couples with KM3 one end；The KM1 other end, the KM2 other end, the KM3 other end are in parallel with outfan 5, and outfan 6 is connected in phase line L2.Arrange: in conjunction with Fig. 1 to Fig. 8, mobile 19, make 17 to set required current value 16；20, motor overcurrent guard time is set.Setting principle: 1), switching current is less than electric motor starting electric current；2), protect in Fig. 9 embodiment, in conjunction with Fig. 1: power turn-on QS, click N1, K1 obtains the normally opened Guan Bi of electric K1a, KM1, KM2 are energized adhesive, the normally closed disconnection of KM2 through outfan 1, and KM1, KM2 main circuit closes, and motor drops voltage starting by autotransformer ZQB；Now electric current raise 10 and 9 close, 17 keep off K1 obtain electric and all the time electric, the normally opened Guan Bi of K1b carries out short time delay to T1 energising, and time delay arrives K2 and obtains electric, is connected on the normally opened Guan Bi of the K2a running circuit and prepares operation, the normally opened Guan Bi self-locking of K2b；Because its meeting natural starting of characteristic of motor terminates.Starting and terminate electric current reduction, 10 separate the normally opened disconnection of K1 dead electricity K1a with 9, and its main circuit of KM1, KM2 dead electricity disconnects, and autotransformer ZQB departs from motor main circuit.The normally closed Guan Bi of instantaneous KM2, KM3 obtains its main circuit electric Guan Bi motor full voltage and runs.The overcurrent that any fault causes, 10 and 9 is all close, and the normally opened Guan Bi of K1c makes T2 obtain electric time delay to arrive K3 and obtain electric, be connected on K3a between outfan 5 and outfan 6 and disconnect, and catalyst dead electricity main circuit disconnects motor and runs and stop.Pressing N2 key in any case all can to motor power-off.

Protect time delay more than motor starting time.According to producing, needs are disposable sets life-time service.

In Fig. 9 embodiment, in conjunction with Fig. 1: power turn-on QS, obtaining the normally opened Guan Bi of electric K1a by N1, K1, KM1, KM2 are through (1) energising adhesive, the normally closed disconnection of KM2, and KM1, KM2 main circuit closes, and motor passes through autotransformer ZQB reduced-voltage starting；Now electric current raises, (17) keep off, (10) and (9) are close, K1 obtain electric and all the time electric, the normally opened Guan Bi of K1b is energized to T1, obtains electric through 1-3 second time delay K2, is connected on the normally opened Guan Bi preparation of the K2a running circuit and runs, the normally opened Guan Bi self-locking of K2b；The characteristic of motor, starts the regular hour complete with regard to natural starting.Starting complete electric current reduction (10) and separate K1 dead electricity with (9), the normally opened disconnection of K1a, KM1, KM2 dead electricity, autotransformer ZQB disconnects with motor main circuit.The normally closed Guan Bi of instantaneous KM2, KM3 obtains its main circuit electric Guan Bi motor full voltage and runs.Starting and run duration, the overcurrent that any fault causes, (10) are all close with (9), it is electric that the normally opened Guan Bi of K1c makes K3 obtain, time delay arrives, the normally closed disconnection of K3a being connected between (5) and (6), and catalyst dead electricity motor main circuit disconnects.By N2 button when needing, motor is out of service.

In Figure 10 embodiment, in conjunction with Fig. 1: power turn-on QS, click N1, K1 and obtain the normally opened Guan Bi of electric K1a, KM2 first its normally closed disconnection electric, normally opened Guan Bi, KM1 obtain its main circuit electric Guan Bi, motor is connected into star reduced-voltage starting by KM1, KM2；Now electric current raise 10 and 9 close, 17 keep off K1 obtain electric and all the time electric, the normally opened Guan Bi of K1b carries out short time delay to T1 energising, and time delay arrives K2 and obtains electric, is connected on the normally opened Guan Bi of the K2a running circuit and prepares operation, the normally opened Guan Bi self-locking of K2b；Because its meeting natural starting of characteristic of motor terminates.Starting and terminate electric current and reduce, 10 separate K1 dead electricity K1a normally opened disconnection KM2 dead electricity with 9, the normally closed Guan Bi of instantaneous KM2, and KM1, KM3 make motor main circuit be connected into triangle full voltage to run by outfan 4 adhesive that is energized.The overcurrent 10 and 9 that any fault causes is all close, and K1c normally opened Guan Bi T2 obtains electric time delay arrival K3 and obtains electric, and the normally closed disconnection of K3a being connected between outfan 5 and outfan 6, it is out of service that catalyst dead electricity main circuit disconnects motor.Pressing N2 key in any case all can to motor power-off.

From above-mentioned two embodiments, it is not difficult to find out: this utility model JX motor reduced-voltage starting multifunctional controller that not only big motor is had the multiple not only simple and easy but also control technology of science, and the control wiring of electric machine step-down starting is also comparatively simple, saving of labor, material-saving；Therefore, that yes is significantly high for cost performance.

Claims (6)

1. a JX motor reduced-voltage starting multifunctional controller, it includes the solenoid of known electromagnetic type 42L6 type ammeter, determines ferrum, dynamic ferrum and associated pointer；It is characterized in that: include the housing of installation dimension identical with 42L6 type ammeter; housing includes the mounting groove of bottom, upper cover, stage casing casing and casing inwall wiring board; the panel that upper cover is transparent is that O point becomes to have on the hypotenuse line of an angle of 90 degrees one group of oblique down scale according to needle pivot; lower left is for starting key hole and the hole that stops key; bottom has a corresponding inclined hole groove parallel with the oblique scale of panel, bottom outerplanar is arranged have electric current that button is set, protection time delay arranges the dress head of knob and 8 outfans；One sensor is set in housing, sensor is cylinder, there is gear pin at its top, has a thread spindle below, one block of relay circuit plate and its plug-in unit relay K 1, K2, K3 and contact K1a is normally opened, K1b is normally opened, K1c is normally opened, K2a is normally opened, K2b is normally opened, K2b is normally closed, K3a is normally closed, K3b is normally closed, also include a piece of cloth and put the electronic circuit board of two groups of delay circuits of T1, T2 and above light emitting diode D1, D2, button N1, button N2；Connecting relation: 1), electric current arranges button and sensor and joins together and concentric circular through thread spindle, shaft coupling between the two is made to be in bottom inclined hole groove, outside bottom, migration current arranges the gear pin button adjusting joint sensor and top cover thereof and the mutual alignment of oblique down scale on panel, and pointer can with sensor close to so as to turn in hunting range；2), the pin of 8 lead-out terminals insert in 8 rectangular stannum holes on the right of the relay circuit plate in housing from bottom preformed hole, by being welded to connect；3), the N1 button on electronic circuit board is micro-from the actuating hole of top cover of faceplate exposes that plate face, N2 button are micro-from stop aperture exposes plate face；4), the normally opened one end of K1a, the normally opened one end of K2a, N2 a end in parallel with outfan 2-L, the normally opened other end of K1a couples with outfan 1, the normally opened other end of K2a couples with outfan 4, and the normally closed one end of K3a couples with outfan 5, and the normally closed other end of K3a couples with outfan 6；5), the b end of N2 and K1 one end, the normally opened one end of K1b, the normally opened one end of K1c, K2b normally-open normally-close common port are in parallel, the K1 other end and sensor one end, N1 one end are in parallel, the normally opened other end of K1b and the normally opened other end of K2b, the normally closed one end of K3b, D2 one end are in parallel, the normally closed other end of K3b is in parallel with the L end of K2 one end, T1, the K2 other end couples with the Z end of T1, the normally closed other end of K2b couples with D1 one end, and the normally opened other end of K1c is in parallel with the L end of K3 one end, T2, and the K3 other end couples with the Z end of T2；6), the N1 other end, the sensor other end, the N end of T1 and T2, the D1 other end, the D2 other end are in parallel with outfan 3-N；7), solenoid two ends couples with outfan 7 and outfan 8 respectively.

2. JX motor reduced-voltage starting multifunctional controller according to claim 1, built-in sensors, it includes known cylindrical shell, the wiring board of shell vivo devices and electronic device；It is characterized in that: wearing threaded shaft, lead-out wire below gear pin, bottom in cylindrical cap and, in bottom side, top cover keeps off pin and is vertically connected with top cover surface concentric circular, thread spindle is vertically connected with bottom face concentric circular below bottom.

3. JX motor reduced-voltage starting multifunctional controller according to claim 1, it is characterised in that: include one piece of the right be arranged above and below be labeled as 1,2-L, 3-N, 4,5,6,7,88 relay circuit plates with the rectangular stannum hole of size；The long 97mm of wiring board, wide 28mm, thick 2mm, the long 4mm in stannum hole, wide 1mm, 8 stannum holes are 80 ± 1mm plus spacing overall length；The jack of 27 rectangular stannum holes placed in the middle, front respectively relay K 1, K2, K3 and their contacts from top to bottom, 5 little stannum holes D2, b, a, D1, N from left to right of top, centre-to-centre spacing 2.5mm between them, little stannum hole, two, upper right side N, Y from left to right, 5 little stannum holes L1, L2, Z1, Z2, N1 from left to right of lower section, the centre-to-centre spacing 2.5mm between them；According to 4 in claim 1), 5), 6), 7) connecting relation wiring；All stannum holes are all plugged corresponding electric elements and are welded to connect；This plate is arranged in housing lower-left layer.

4. JX motor reduced-voltage starting multifunctional controller according to claim 1, it is characterised in that: include one piece of electronic circuit board, its long 106mm, wide 30mm, thick 1.6mm, arrange two groups of known delay circuits above, be set as T1 and T2；5 little stannum holes D2, b, a, D1, N from left to right of top, corresponding with the little stannum hole, 5, top of relay circuit plate；5 little stannum holes of lower left are L1, L2, Z1, Z2, N1 from top to bottom, corresponding with the little stannum hole, 5, lower section of relay circuit plate；Upper right side is plug-in unit stannum hole D1, D2 from top to bottom, and D2 Xi Kong center to plate body top is less than 28mm；Two groups of plug-in unit stannum holes of underface are button N1, button N2 from left to right；Connecting up in conjunction with connecting relation corresponding to relay circuit plate, all stannum holes are all plugged corresponding electronic component and are welded to connect；This plate is arranged in housing upper left layer.

5. JX motor reduced-voltage starting multifunctional controller according to claim 1, it is characterized in that: upper cover is transparent panel, having current range scale on panel, its graduation position of different size, current range value are all coincide with the panel of known 42L6 type ammeter same specification；The lower right of current range scale also has one group of oblique down scale paralleled with bottom inclined hole groove, and each down scale is corresponding with the current range scale of its equivalence is being on the same oblique line of O point according to needle pivot；There are failure warning, power supply, operation printed words in upper left side, plate face；Liang Ge hole, lower left is left actuating hole, right stop aperture.

6. JX motor reduced-voltage starting multifunctional controller according to claim 1, it is characterised in that: on bottom outerplanar by right indicia be 1,2-L, the dress head of 8 outfans of 3-N, 4,5,6,7,8 and circuit for controlling motor wiring diagram；Have one group of oblique scale parallel with bottom inclined hole groove and on panel oblique down scale and current values consistent, button is set along bottom inclined hole groove migration current electric current anchor point can be set on oblique scale；The left side arranges knob and time scale face arranged above with protection time delay.