CN204992993U - A single -phase asynchronous motor for high pressure cleaner - Google Patents
A single -phase asynchronous motor for high pressure cleaner Download PDFInfo
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- CN204992993U CN204992993U CN201520682046.6U CN201520682046U CN204992993U CN 204992993 U CN204992993 U CN 204992993U CN 201520682046 U CN201520682046 U CN 201520682046U CN 204992993 U CN204992993 U CN 204992993U
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Abstract
The utility model discloses a single -phase asynchronous motor for high pressure cleaner, it includes the casing, wherein, has arranged a pivot in the casing, is provided with the rotor in the pivot periphery, has seted up the stator slot on week in the casing, has arranged stator group in the stator slot, stator group is used for driving the rotor, the rotor has the rotor punching, and the rotor groove has been offered in circling in week of rotor punching, and the inner chamber in rotor groove is outer border side mode wide and progressively inside border side constriction, the groove top in rotor groove, tank bottom are arc. The antitrochanter is seted up the cell type improvement in rotor groove etc. Towards the piece on and is optimized structure plan to effectively strengthen starting torque, realized that this single -phase asynchronous motor can start the operation under the heavy load state, also can start the operation smoothly simultaneously when low temperature, widened the effect field of this organism from this, and optimizing structure after improving can reduce locked rotor current simultaneously, reduces the leakage reactance, eliminate cubic and three multiple subharmonic to improve organism moving stationarity.
Description
Technical field
The utility model relates to mechanical field, particularly relates to a kind of monopole asynchronous motor for jetting machine.
Background technology
Motor is a kind of equipment electric energy being converted to mechanical energy.It utilizes hot-wire coil (namely stator winding) to produce rotating magnetic field and act on rotor (squirrel-cage closes aluminium frame) to form electro-magnetic motor force rotation torque.Can be synchronous machine or asynchronous machine (motor stator rotational speed of magnetic field and rotor rotary rpm do not keep synchronous speed).Motor forms primarily of stator and rotor, and the direction of electrified wire movement under force in magnetic field is relevant with magnetic induction line direction with the sense of current.Motor operation principle is magnetic field to the stressed effect of electric current, and motor is rotated.Motor is divided into threephase asynchronous and monopole asynchronous motor by use power supply difference.
At present in cleaning industry field, the motor that jetting machine uses is for providing the staring torque of larger heavy burden load, usual employing threephase asynchronous, but because a lot of workplace does not provide single phase poaer supply, it typically is three-phase alternating-current supply, for adapting to different operating place power configuration problem, early stage, multiple producer manufactured experimently monopole asynchronous motor, but locked rotor current is large, pressure drop is large, locked-rotor torque is little present situation that it exists, cause jetting machine can not load startup or low temperature time start; Simultaneously larger locked rotor current is strongly to the impact of each component of body in startup or running, thus the infringement causing each component in various degree, and then obviously reduces production efficiency, the quality of production, the useful life of shortening body.
Therefore, prior art needs further improvement and develops.
Utility model content
In view of above-mentioned the deficiencies in the prior art, a kind of monopole asynchronous motor for jetting machine that the utility model provides, to reduce locked rotor current, to reduce leakage reactance, improves motor traveling comfort.
For solving the problems of the technologies described above, the utility model scheme comprises:
For a monopole asynchronous motor for jetting machine, it comprises housing, and wherein, be furnished with a rotating shaft in housing, periphery is provided with rotor in rotating shaft, housing inner circumferential offers stator slot, is furnished with stator pack in stator slot, and stator pack is for driving rotor; Rotor has rotor punching, and the border of rotor punching offers rotor, and the inner chamber of rotor is the wide and mode that is progressively inside side, border constriction in side, outer border, and the groove top of described rotor, bottom land are circular arc.
Described single-phase asynchronous motor, wherein, stator pack comprises main winding and auxiliary winding, main winding and auxiliary winding all have outlet head end and outlet tail end, the outlet head end of auxiliary winding is connected a capacitance group, and the outlet head end of main winding and auxiliary winding, outlet tail end are all by circuit and a control element connection.
Described single-phase asynchronous motor, wherein, above-mentioned rotor punching offers 28 rotor, and in rotor, all perfusion is substantial alloy aluminum.
Described single-phase asynchronous motor, wherein, the front end of above-mentioned housing is provided with the front end housing for sealing, and front end housing doubles as the shell of scavenging pump, and the axle of the scavenging pump of rotating shaft and jetting machine adopts direct-connected; The rear end of housing is provided with the rear end cap for sealing, and housing is provided with shaft bearing in the corresponding position with front end housing, rear end cap, and all self-corresponding shaft bearing in two ends of rotating shaft stretches out.
Described single-phase asynchronous motor, wherein, the winding coil of main winding such as is at the number of turn distribution form, accounts for the stator pack facies tract of 2/3; The winding coil of auxiliary winding is single layer coil winding, accounts for 1/3 stator pack facies tract.
A kind of monopole asynchronous motor for jetting machine that the utility model provides, to schemes of optimizing structure such as the grooved improvement of rotor punching being offered rotor, thus effectively enhance detent torque, realize this monopole asynchronous motor and can start running under heavy duty state, also can start running smoothly when low temperature simultaneously, widen the effect field of this body thus; And optimizing structure after improving can reduce locked rotor current, reduces leakage reactance, eliminates the multiple subharmonic of three times and three simultaneously, thus improve the stationarity of body running, the impact damage preventing super-high-current from producing body, extends its useful life, also improves production efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of monopole asynchronous motor in the utility model;
Fig. 2 is the schematic diagram of main winding and auxiliary winding in the utility model;
Fig. 3 is the planar structure schematic diagram of the utility model rotor punching.
Embodiment
The utility model provides a kind of monopole asynchronous motor for jetting machine, for making the purpose of this utility model, technical scheme and effect clearly, clearly, further describes below to the utility model.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
The utility model provides a kind of monopole asynchronous motor for jetting machine, as shown in Figures 1 and 3, it comprises housing 1, wherein, be furnished with a rotating shaft 2 in housing 1, periphery is provided with rotor 3 in rotating shaft 2, and housing 1 inner circumferential offers stator slot, be furnished with stator pack 4 in stator slot, stator pack 4 is for driving rotor 3; Rotor 3 has rotor punching 5, the border of rotor punching 5 offers rotor 6, and the inner chamber of rotor 6 is the wide and mode that is progressively inside side, border constriction in side, outer border, and groove top, the bottom land of described rotor 6 are circular arc.Rotor 3, by processing rotor cylindrical, reduces rotor punching 5 and grips portion's size, to reach the effect that rotor 6 is communicated with periphery.In the rotor 6 of rotor punching 5, alloy aluminum is enriched in perfusion.The groove design of this rotor 6 is optimized structure further, makes complete machine improve detent torque at aspect of performance, and reduces leakage reactance simultaneously, reduces locked rotor current.
In another preferred embodiment of the present utility model, as shown in Figure 2, stator pack 4 comprises main winding 7 and auxiliary winding 8, main winding 7 and auxiliary winding 8 all have outlet head end and outlet tail end, the outlet head end of auxiliary winding 8 is connected a capacitance group, and the outlet head end of main winding 7 and auxiliary winding 8, outlet tail end are all by circuit and a control element connection.And capacitance group comprises start-up capacitance 10 and running capacitor 11, start-up capacitance 10 is connected on the outlet head end of auxiliary winding 8 with running capacitor 11 in parallel way, the branch road with start-up capacitance 10 is provided with control switch 12.
Stator pack 4 has the main winding 7 and auxiliary winding 8 that are made up of winding coil, the number of turn distribution forms such as the winding coil employing of main winding 7, and namely main winding 7 adopts the two-layer coil winding of N1=N2 to be formed, and accounts for the facies tract of 2/3 stator pack 4; The winding coil of auxiliary winding 8 is single layer coil winding, and accounts for the facies tract of 1/3 stator pack 4, thereby eliminates in operation and causes jiggly factor, improves traveling comfort.The interior border of stator pack 4 offers stator slot, main winding 7 and auxiliary winding 8 embed in concentric type in stator slot, the overall wire that simultaneously winding coil of the overall wire bag that formed of the winding coil of main winding 7 and auxiliary winding 8 is formed wraps in stator slot and does not overlap, the mode that is embedded of this main winding 7 and auxiliary winding 8 effectively eliminates the multiple subharmonic of three times and three, improves production efficiency simultaneously.
Auxiliary winding 8 is connected in series start-up capacitance 10 and control switch 12 by a circuit, is connected in series running capacitor 11 by another circuit, and start-up capacitance 10, control switch 12 and running capacitor 11 are in parallel.Wherein control switch 12 is assemblied in the back-end location place of housing 1 inner chamber, and its present position is convenient to realize normally throwing away opening operation.
Main winding 7 has outlet head end and outlet tail end, and the outlet head end of main winding 7 is labeled as U1, outlet tail end is labeled as U2; Auxiliary winding 8 has outlet head end and outlet tail end, and the outlet head end of auxiliary winding 4b is labeled as Z1, outlet tail end is labeled as Z2.The outlet head end that main winding 7, auxiliary winding 8 are whole and outlet tail end, namely U1, U2, Z1, Z2 are all formed with control element and are electrically connected, thus control element can control adjust rotating shaft 2 forward and backward to, synchronously realize the rotating of cleaning machine.
Further, above-mentioned rotor punching 5 offers 28 rotor 6, in rotor 6, all perfusion is substantial alloy aluminum.And the front end of above-mentioned housing 1 is provided with the front end housing 13 for sealing, front end housing 13 doubles as the shell of scavenging pump, and rotating shaft 2 adopts direct-connected with the axle of the scavenging pump of jetting machine; The rear end of housing 1 is provided with the rear end cap 14 for sealing, and housing 1 is provided with shaft bearing in the corresponding position with front end housing 13, rear end cap 14, and all self-corresponding shaft bearing in two ends of rotating shaft stretches out.
Its concrete running is as follows:
When energized, control switch 12 on the auxiliary winding 8 of stator pack 4 closes, namely electric current is by being connected on the start-up capacitance 10 on auxiliary winding 8 circuit, effect due to start-up capacitance 10 makes electric current 90 electrical degree in the advanced main winding 7 of the electric current in auxiliary winding 8, and the simultaneously conglobate rotating magnetic field of shape, rotating shaft 2 exerts a force and turns by the detent torque that further acquisition is larger, thus realizes the detent torque that monopole asynchronous motor also can have high strength, and guarantees load operation.When rotating shaft 2 rotating speed reaches the 70%-85% of synchronous speed, control switch 12 is disconnected, and running capacitor 11 is communicated with simultaneously, makes it keep connection running capacitor 11, to ensure that motor operationally has good performance index.Main winding 7 and the auxiliary winding 8 of stator pack 4 all pass through alternating current, establish armature magnetomotive force, namely single phase alternating current (A.C.) winding passes into single phase alternating current (A.C.) and produces pulsating mmf, this magnetomotive force can be analyzed to two rotating mmfs that amplitude is equal, rotating speed is contrary and, thus in air gap set up rotate and reverse magnetic field and.These two rotating magnetic field cuttings from the rotor 3 as conductor, and produce induced electromotive force and induced current respectively in rotor 3, and the attempt of forward electromagnetic torque makes rotor 3 rotate forward; Reverse electromagnetic torque attempt makes rotor 3 reverse.It is exactly the synthesis torque promoting motor rotation that these two torques stack up.
Through the improved monopole asynchronous motor of structure optimization, confirmed by practical operation, the ratio index of its locked-rotor torque and nominal torque reaches 2.2 to 2.8 times, exceeds 1.7 times of standard-required; The ratio index of its breakdown torque and nominal torque reaches 1.9 to 2.2 times, exceeds 1.7 times of standard-required, and the desired value of locked rotor current does not increase simultaneously.Effectively enhance detent torque by the monopole asynchronous motor after above-mentioned data value visible structure optimization, realize this monopole asynchronous motor and dynamic loading can be with under heavy duty state to start running.
Certainly; more than illustrate and be only preferred embodiment of the present utility model; the utility model is not limited to enumerate above-described embodiment; should be noted that; any those of ordinary skill in the art are under the instruction of this specification; made all equivalently to substitute, obvious variant, within the essential scope all dropping on this specification, protection of the present utility model ought to be subject to.
Claims (5)
1. for a monopole asynchronous motor for jetting machine, it comprises housing, it is characterized in that, be furnished with a rotating shaft in housing, periphery is provided with rotor in rotating shaft, and housing inner circumferential offers stator slot, be furnished with stator pack in stator slot, stator pack is for driving rotor; Rotor has rotor punching, and the border of rotor punching offers rotor, and the inner chamber of rotor is the wide and mode that is progressively inside side, border constriction in side, outer border, and the groove top of described rotor, bottom land are circular arc.
2. single-phase asynchronous motor according to claim 1, it is characterized in that, stator pack comprises main winding and auxiliary winding, main winding and auxiliary winding all have outlet head end and outlet tail end, the outlet head end of auxiliary winding is connected a capacitance group, and the outlet head end of main winding and auxiliary winding, outlet tail end are all by circuit and a control element connection.
3. single-phase asynchronous motor according to claim 1, is characterized in that, above-mentioned rotor punching offers 28 rotor, and in rotor, all perfusion is substantial alloy aluminum.
4. single-phase asynchronous motor according to claim 1, is characterized in that, the front end of above-mentioned housing is provided with the front end housing for sealing, and front end housing doubles as the shell of scavenging pump, and the axle of the scavenging pump of rotating shaft and jetting machine adopts direct-connected; The rear end of housing is provided with the rear end cap for sealing, and housing is provided with shaft bearing in the corresponding position with front end housing, rear end cap, and all self-corresponding shaft bearing in two ends of rotating shaft stretches out.
5. single-phase asynchronous motor according to claim 2, is characterized in that, the winding coil of main winding such as is at the number of turn distribution form, accounts for the stator pack facies tract of 2/3; The winding coil of auxiliary winding is single layer coil winding, accounts for 1/3 stator pack facies tract.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520682046.6U CN204992993U (en) | 2015-09-06 | 2015-09-06 | A single -phase asynchronous motor for high pressure cleaner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520682046.6U CN204992993U (en) | 2015-09-06 | 2015-09-06 | A single -phase asynchronous motor for high pressure cleaner |
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| CN204992993U true CN204992993U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520682046.6U Active CN204992993U (en) | 2015-09-06 | 2015-09-06 | A single -phase asynchronous motor for high pressure cleaner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634226A (en) * | 2016-03-02 | 2016-06-01 | 江门日野电机有限公司 | Single-phase capacitor motor, capacitor device and driven oil pump and gate |
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2015
- 2015-09-06 CN CN201520682046.6U patent/CN204992993U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634226A (en) * | 2016-03-02 | 2016-06-01 | 江门日野电机有限公司 | Single-phase capacitor motor, capacitor device and driven oil pump and gate |
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