CN105207534A - Start device for single-phase asynchronous motor - Google Patents
Start device for single-phase asynchronous motor Download PDFInfo
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- CN105207534A CN105207534A CN201510738939.2A CN201510738939A CN105207534A CN 105207534 A CN105207534 A CN 105207534A CN 201510738939 A CN201510738939 A CN 201510738939A CN 105207534 A CN105207534 A CN 105207534A
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- end portion
- connecting end
- asynchronous motor
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- push rod
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Abstract
The invention discloses a start device for a single-phase asynchronous motor. The start device comprises a non-metallic skeleton, an iron core, a tapered jacking rod and an air hole, wherein the non-metallic skeleton comprises a first connecting end part, a connecting part and a second connecting end part which are fixed together; the air hole is formed in the bottom end of the first connecting end part; the axes of the first connecting end part, the connecting part, the second connecting end part and the air hole are on the same straight line; the iron core and the tapered jacking rod are coaxially mounted in the central hole in the skeleton central hole; one end of the iron core is connected with the first connecting end part; the other end of the iron core is connected with the planar end of the tapered jacking rod.
Description
[technical field]
The present invention relates to motor starting device, especially a kind of monopole asynchronous motor starting drive.
[background technology]
Traditional monopole asynchronous motor coiling two or the equal and rotating magnetic field that direction is contrary of four power when designing coiling just can be finished the work in the stator.Monopole asynchronous motor is when initial condition, just running cannot be started without staring torque, add in former stator winding and form the startup winding of an angle of 90 degrees around with Working winding, give staring torque, then configure start-up capacitance device by the operating load of single-phase motor and just can start work.But, because section motor operating load is large, need to configure large start-up capacitance device to make startup winding flow through large electric current enough moment just can be had to start, and start winding and can not affect electric motor normal working by big current for a long time, start-up capacitance device must be disconnected after startup completes.
Traditional single phase asynchronous machine make use of centrifugal principle to install on motor rotor shaft and a certain amount ofly centrifugally fly block, when armature spindle is static, fly block and there is no centrifugal force, be in closure state and make the starting switch closing of contact, startup winding acquisition big current produces enough staring torques makes motor operation.When rotor speed reaches operating rate, fly block and obtain centrifugal force and open, starting switch disconnects, and startup completes.But, traditional single phase asynchronous machine start time have following five shortcomings: one is, fly block easily damage clash into winding make winding open circuit or short circuit; Two are, flying has serious mechanical friction when each startup and shutdown between block and starting switch, along with the increase of service time, contact site can be made to wear up to damage; Three are, are inconvenient to keep in repair, and due to starting switch with fly block and all must be arranged on motor interior, and these two parts are normal bad parts, make troubles to maintenance; Four are, starting switch contact is all that non-packed covers in motor terminal, is easy to cause electric leakage to hurt sb.'s feelings; Five are, fly block reset freely, after each motor work completes, rotor can be in static, flies block and will be reset to closure state, so that lower subnormal startup, use spring non-rectilinear to oppress reset, often had reset not and impact is restarted owing to flying block reset.
[summary of the invention]
The object of the invention is to the deficiency overcoming existing monopole asynchronous motor, a kind of monopole asynchronous motor starting drive designed by the present invention utilizes electromagnetic induction principle to carry out starter motor, also be designed with simultaneously and start from motion tracking, this device is provided with Mechanical Contact friction simultaneously, starting drive longer service life, start rapidly, required moment is little, this device need not be arranged in motor, keeps in repair convenient, simple and safe.
The present invention achieves the above object by the following technical programs: a kind of monopole asynchronous motor starting drive, comprises nonmetal skeleton, iron core, taper push rod and pore.
Described nonmetal skeleton includes the first connecting end portion, connecting portion and the second connecting end portion, first connecting end portion, connecting portion and the second connecting end portion are fixed together, first connecting end portion bottom has pore, and the first connecting end portion, connecting portion, the gentle axially bored line of the second connecting end portion on the same line; Unshakable in one's determination and taper push rod is arranged in frame center hole, and axis on the same line, and one end unshakable in one's determination is connected with the first connecting end portion, and the other end unshakable in one's determination is connected with the planar ends of taper push rod.
Described nonmetal skeleton includes the first connecting end portion, connecting portion and the second connecting end portion, and the first connecting end portion and frame center hole, connecting portion and the second connecting end portion are fixedly connected with, and the first connecting end portion diameter is 3.4cm, high 1.3cm; Connecting portion diameter is 1.8cm, high 3.3cm; Second connecting end portion diameter is 3.4cm, high 0.3cm; Frame center hole is positioned at nonmetal frame center, and diameter is 1.4cm.
Described first connecting end portion bottom surface includes pore, and diameter is 0.4cm.
Described iron core is cylindrical, and diameter is 1.4cm, high 2cm.
Described taper push rod, lower end is cylindrical, and upper end is taper, and diameter is 1.4cm, high 2.6cm.
Described nonmetal skeleton includes enamel-cover wire turn groove, and with 3mm2 enamelled wire coiling 60 circle, will carry out simultaneously and put electric leakage encapsulation.
Described frame center hole first loads specification iron core, and core-diameter is slightly less than frame center's bore dia, ensures unshakable in one's determination flexibly mobile.
Described taper push rod is manufactured by non-magnetic material, and the tapering point of taper push rod 3 outwards aims at the reseting shrapnel with contact, and contact gap is between 1mm-1.5mm.
Mobile smooth and easy in order to ensure between described iron core and taper push rod, a little lubricating oil of just need annotating during dress.
Useful benefit of the present invention is:
1, the present invention designs starting drive and can start from motion tracking;
2, the present invention is in start-up course, and start rapidly, required moment is little;
3, Mechanical Contact friction is not had, starting drive longer service life;
4, this device need not be arranged in motor machine, keeps in repair convenient;
5, start reliable and stable, start according to motoring in good time;
6, easy for installation, simple and safe;
7, without the need to changing former motor winding parameter;
8, compared with same model starter motor, cost is lower.
[accompanying drawing explanation]
Fig. 1 is the overall fitting plane schematic diagram of a kind of monopole asynchronous motor starting drive of the present invention.
Fig. 2 is the entirety assembling schematic perspective view of a kind of monopole asynchronous motor starting drive of the present invention.
Fig. 3 is the nonmetal skeleton structure schematic diagram of a kind of monopole asynchronous motor starting drive of the present invention.
Fig. 4 is the nonmetal skeleton front view of a kind of monopole asynchronous motor starting drive of the present invention.
Fig. 5 is the nonmetal skeleton cutaway view of a kind of monopole asynchronous motor starting drive of the present invention.
Fig. 6 is the nonmetal skeleton rearview of a kind of monopole asynchronous motor starting drive of the present invention.
Fig. 7 is the shelf structure schematic diagram unshakable in one's determination of a kind of monopole asynchronous motor starting drive of the present invention.
Fig. 8 is the taper push rod structure schematic diagram of a kind of monopole asynchronous motor starting drive of the present invention.
Fig. 9 is the taper push rod front view of a kind of monopole asynchronous motor starting drive of the present invention.
Figure 10 is the taper push rod reseting shrapnel structural representation of a kind of monopole asynchronous motor starting drive of the present invention.
Figure 11 is the starting drive electrical schematic of a kind of monopole asynchronous motor starting drive of the present invention.
Main element symbol description
| Nonmetal skeleton 1 | Unshakable in one's determination 2 | Taper push rod 3 |
| Enamel-cover wire turn groove 4 | Pore 5 | First connecting end portion 6 |
| Connecting portion 7 | Second connecting end portion 8 | Frame center hole 9 |
| Reseting shrapnel 10 | Shrapnel contact 11 | Power supply 12 |
| Motor winding 13 | Working winding 131 | Start winding 132 |
| Switch winding 133 | Electric capacity 14 | Mutual capacitance 141 |
| Start-up capacitance 142 | Switch magnetic-inductive device 15 | Magnetic inductor 151 |
| Switch magnetic-inductive device introduces contact 152 | Switch magnetic-inductive device draws contact 153 | Switch 154 |
| Start-up circuit 20 |
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
[embodiment]
Below in conjunction with drawings and Examples, technical scheme of the present invention is described further.
Refer to Fig. 1-11, a kind of monopole asynchronous motor starting drive, comprise nonmetal skeleton 1, iron core 2, taper push rod 3 and start-up circuit 20.
Described nonmetal skeleton 1 includes the first connecting end portion 6, connecting portion 7 and the second connecting end portion 8, first connecting end portion 6, connecting portion 7 and the second connecting end portion 8 are one-body molded, first connecting end portion 6 bottom has pore 5, and the first connecting end portion 6, connecting portion 7, second connecting end portion 8 and pore 5 axis are on the same line; Iron core 2 and taper push rod 3 are arranged in frame center hole 9, and axis on the same line, and 2 one end unshakable in one's determination are connected with the first connecting end portion 6, and 2 other ends unshakable in one's determination are connected with the planar ends of taper push rod 3.2 diameters unshakable in one's determination are less than frame center hole 9 diameter, ensure 2 movements flexibly unshakable in one's determination, in addition, mobile smooth and easy in order to ensure between described unshakable in one's determination 2 and taper push rod 3, a little lubricating oil of just need annotating during dress.In the present embodiment, the first connecting end portion 6 diameter is 3.4cm, high 1.3cm; Connecting portion 7 diameter is 1.8cm, high 3.3cm; Second connecting end portion 8 diameter is 3.4cm, high 0.3cm; Frame center hole 9 is positioned at nonmetal skeleton 1 center, and diameter is 1.4cm, and the diameter of pore 5 is 0.4cm.
Described unshakable in one's determination 2 is cylindrical, and diameter is 1.4cm, high 2cm.
The lower end of described taper push rod 3 is cylindrical, and upper end is taper; The lower end diameter of described taper push rod 3 is 1.4cm, high 2.6cm; Taper push rod 3 is manufactured by non-magnetic material, and the tapering point of taper push rod 3 outwards aims at the reseting shrapnel 10 with contact 11, and contact gap is between 1mm-1.5mm.
Described nonmetal skeleton 1 includes enamel-cover wire turn groove 4, and uses 3mm
2enamelled wire coiling 60 circle, will carry out simultaneously and put electric leakage encapsulation.
Start-up circuit 20 includes power supply 12, motor winding 13, electric capacity 14 and switch magnetic-inductive device 15 as shown in figure 11, described power supply 12 accesses 220V AC power, described motor winding 13 is provided with Working winding 131, starts winding 132 and switch winding 133, described electric capacity 14 is provided with mutual capacitance 141 and start-up capacitance 142, and described switch magnetic-inductive device 15 is provided with magnetic inductor 151, switch magnetic-inductive device introduces contact 152, switch magnetic-inductive device draws contact 153 and switch 154.
Power supply 12 one end is introduced contact 152 by wire and switch magnetic-inductive device 15 and is connected, contact 152 is introduced by wire connecting valve magnetic-inductive device 15 in switch winding 133 one end, switch winding 133 other end is drawn contact 153 by wire and switch magnetic-inductive device 15 and is connected, startup winding 132 one end is drawn contact 153 by wire and switch magnetic-inductive device 15 and is connected, Simultaneous Switching 154 positive terminal is arranged in switch magnetic-inductive device 15 by wire, and mutual capacitance 141 one end is introduced contact 152 with switch 154 positive terminal and switch magnetic-inductive device and is connected, switch 154 negative pole end is connected by wire start-up capacitance 142 one end, Working winding 131 one end is connected with mutual capacitance 141 other end and start-up capacitance 142 other end by wire, Working winding 131 other end is connected with power supply 12 by wire with startup winding 132 other end.
The operation principle of described a kind of monopole asynchronous motor starting drive is as follows: when utilizing motor static, 2 rotors unshakable in one's determination do not rotate, the characteristic very large according to energising immediate current, size of current is different according to motor power (output) difference, go here and there around enamelled wire in motor working power loop, when motor is in static, very large by the electric current of enamelled wire, enamelled wire produces strong magnetic field, now produce big current by magnetic flux, can suck unshakable in one's determination 2 when producing magnetic field make starting switch close, and motor start-up winding obtains electric current generation staring torque and makes motor start-up.After motor start-up completes, the electric current flowing through enamelled wire diminishes, and magnetic force dies down, and under the effect of reseting shrapnel 11,2 movable parts such as grade unshakable in one's determination automatically reset, and disconnects with contact 11 simultaneously, and starting switch is opened a way, and startup completes.
In described a kind of monopole asynchronous motor starting drive start-up course, tracking can be carried out and start; Described tracking start for starting load excessive time, electric current also becomes large thereupon, and magnetic force also strengthens thereupon, and starting switch remains closed to startup always and completes, and electric current diminishes just to put and fills startup.When motor load become greater to fast stopped status, induction coil electric current also increases thereupon, and magnetic force increases, and starting switch group closes, and motor is restarted to operating state.
Above-mentioned explanation is the detailed description for the better possible embodiments of the present invention, but embodiment is also not used to limit patent claim of the present invention, the equal change completed under technical spirit suggested by all the present invention or modification are changed, and all should belong to the present invention and contain the scope of the claims.
Claims (7)
1. a monopole asynchronous motor starting drive, comprise nonmetal skeleton, iron core and taper push rod, it is characterized in that: described nonmetal skeleton includes the first connecting end portion, connecting portion and the second connecting end portion, first connecting end portion, connecting portion and the second connecting end portion are fixed together, first connecting end portion bottom has pore, and the first connecting end portion, connecting portion, the gentle axially bored line of the second connecting end portion on the same line; Unshakable in one's determination and taper push rod is arranged in frame center hole, and axis on the same line, and one end unshakable in one's determination is connected with the first connecting end portion, and the other end unshakable in one's determination is connected with the planar ends of taper push rod.
2. a kind of monopole asynchronous motor starting drive according to claim 1, it is characterized in that: described nonmetal skeleton includes the first connecting end portion, connecting portion and the second connecting end portion, first connecting end portion and frame center hole, connecting portion and the second connecting end portion are fixedly connected with, and the first connecting end portion diameter is 3.4cm, high 1.3cm; Connecting portion diameter is 1.8cm, high 3.3cm; Second connecting end portion diameter is 3.4cm, high 0.3cm; Frame center hole is positioned at nonmetal frame center, and diameter is 1.4cm.
3. a kind of monopole asynchronous motor starting drive according to claim 1, is characterized in that: described first connecting end portion bottom surface includes pore, and diameter is 0.4cm.
4. a kind of monopole asynchronous motor starting drive according to claim 1, it is characterized in that: described iron core is cylindrical, and diameter is 1.4cm, high 2cm.
5. a kind of monopole asynchronous motor starting drive according to claim 1, is characterized in that: the lower end of described taper push rod is cylindrical, and upper end is taper, and the lower end diameter of described taper push rod is 1.4cm, high 2.6cm; Taper push rod is manufactured by non-magnetic material, and the tapering point of taper push rod outwards aims at the reseting shrapnel with contact, and contact gap is between 1mm-1.5mm.
6. a kind of monopole asynchronous motor starting drive according to claim 1, is characterized in that: described nonmetal skeleton includes enamel-cover wire turn groove, and uses 3mm
2enamelled wire coiling 60 circle.
7. a kind of monopole asynchronous motor starting drive according to claim 1, is characterized in that: core-diameter is less than frame center's bore dia.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510738939.2A CN105207534A (en) | 2015-11-04 | 2015-11-04 | Start device for single-phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510738939.2A CN105207534A (en) | 2015-11-04 | 2015-11-04 | Start device for single-phase asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105207534A true CN105207534A (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510738939.2A Pending CN105207534A (en) | 2015-11-04 | 2015-11-04 | Start device for single-phase asynchronous motor |
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| Country | Link |
|---|---|
| CN (1) | CN105207534A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2239095Y (en) * | 1995-04-29 | 1996-10-30 | 山东三鑫科技(集团)股份有限公司 | Electronic starting switch for single-phase motor |
| CN2251781Y (en) * | 1995-10-30 | 1997-04-09 | 秦康 | Electromagnet |
| CN2270315Y (en) * | 1996-04-16 | 1997-12-10 | 吉志平 | Starting switch for single-phase induction motor |
| CN2362234Y (en) * | 1997-10-23 | 2000-02-02 | 张贵福 | Enternal controlling single-phase motor |
| US20080018293A1 (en) * | 2006-07-19 | 2008-01-24 | Danfoss Compressors Gmbh | Motor start circuit |
| CN204597826U (en) * | 2014-12-24 | 2015-08-26 | 丹东科亮电子有限公司 | Universal monophase machine starting drive |
| CN205195604U (en) * | 2015-11-04 | 2016-04-27 | 胡晓周 | Single -phase asynchronous motor starting drive |
-
2015
- 2015-11-04 CN CN201510738939.2A patent/CN105207534A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2239095Y (en) * | 1995-04-29 | 1996-10-30 | 山东三鑫科技(集团)股份有限公司 | Electronic starting switch for single-phase motor |
| CN2251781Y (en) * | 1995-10-30 | 1997-04-09 | 秦康 | Electromagnet |
| CN2270315Y (en) * | 1996-04-16 | 1997-12-10 | 吉志平 | Starting switch for single-phase induction motor |
| CN2362234Y (en) * | 1997-10-23 | 2000-02-02 | 张贵福 | Enternal controlling single-phase motor |
| US20080018293A1 (en) * | 2006-07-19 | 2008-01-24 | Danfoss Compressors Gmbh | Motor start circuit |
| CN204597826U (en) * | 2014-12-24 | 2015-08-26 | 丹东科亮电子有限公司 | Universal monophase machine starting drive |
| CN205195604U (en) * | 2015-11-04 | 2016-04-27 | 胡晓周 | Single -phase asynchronous motor starting drive |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20151230 |