CN102377304A - Permanent-magnet synchronous motor and bread machine using same - Google Patents
Permanent-magnet synchronous motor and bread machine using same Download PDFInfo
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- CN102377304A CN102377304A CN2010102605369A CN201010260536A CN102377304A CN 102377304 A CN102377304 A CN 102377304A CN 2010102605369 A CN2010102605369 A CN 2010102605369A CN 201010260536 A CN201010260536 A CN 201010260536A CN 102377304 A CN102377304 A CN 102377304A
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Abstract
The invention provides a permanent-magnet synchronous motor and a bread machine using the synchronous motor. When the motor is started, the rotation direction of the permanent-magnet synchronous motor can be freely regulated, and the strong vibration phenomenon during the starting is avoided. A rotor of the permanent-magnet synchronous motor comprises a rotor framework, a plurality of magnets and a rotating shaft, wherein the outer periphery of the rotor framework is provided with grooves the same quantity as that of the magnets, the magnets are embedded in the grooves, the rotating shaft is positioned in the middle part of the rotor framework, the rotor framework is provided with more than two layers of groove combinations which are vertically distributed, and each layer of groove combination respectively comprises a plurality of grooves distributed at the outer periphery of the rotor framework so that the rotor framework is in the gear-shaped structure. The center lines of upper and lower grooves in the two adjacent layers of groove combinations are mutually staggered for a specific distance. A plurality of magnets are embedded in more than two layers of groove combinations, and more than two layers of magnet combinations are formed. The center lines of upper and lower adjacent magnets of the adjacent two layers of magnet combinations are mutually staggered for a distance which is the same as the mutually staggering distance of the center lines of the upper and lower grooves.
Description
Technical field
The present invention relates to a kind of permagnetic synchronous motor and use the bread producing machine of this synchronous machine, refer to the controlled single-phase claw-pole permanent magnet synchronous motor of a kind of slow-speed of revolution self-starting direction especially.
Background technology
In the prior art, bread producing machine includes fuselage, be positioned at the baking box of fuselage, be installed in the loam cake at fuselage top; Said loam cake, baking box, fuselage can be surrounded as the manufacturing chamber of a sealing; Bread barrel is arranged in said manufacturing chamber, and body wall, stirring vane that rabbling mechanism passes bread barrel are positioned at bread barrel and stir; Heating element is positioned at bread barrel outside, said manufacturing chamber; It is outside that motor is positioned at said manufacturing chamber, works through the actuator drives rabbling mechanism.
The equal motor employing high-speed electric expreess locomotive of the drive part of existing home-use bread producing machine (rotating speed passes through transmission device generally 1500～2000R/M): the deceleration of belt and belt pulley, stir face requirement rotating speed (100～150R/M) thereby reach bread producing machine.Just there is a problem in this, and Belt Transmission Efficiency is low, is roughly 70%, and the life-span of belt and belt pulley often goes wrong, and cause bread producing machine to lose efficacy, and in the belt rotation process, noise is bigger.The transmission device of existing bread producing machine slows down through belt usually, includes small belt pulley and big belt pulley; Because gearratio is bigger, small belt pulley and big belt pulley diameter differ bigger, and the number of teeth of small belt pulley and belt engages is few; Belt skids easily, causes operational failure.Existing bread producing machine, the bread producing machine of employing high-speed electric expreess locomotive and belt and belt pulley transmission also exists volume bigger, baroque shortcoming.
In order to solve the problems referred to above that prior art exists, consider to adopt the drive part of Low speed electric motor as bread producing machine.Motor has generally included stator, rotor, end cap.In the claw-pole permanent magnet synchronous motor of existing comparative maturity, the motor shaft actual speed be 750R/M mostly, all is through the deceleration of transmission mechanisms such as gear and reach more slow-revving (as: 5R/M).According to pawl utmost point homochronousness Principle of Electric Engine; Motor speed is by the number of the lower claw utmost point on the motor stator, and the number of rotor permanent magnet and supply frequency decision are under the constant condition of frequency; Motor pawl number of poles is many more; The rotor magnetic pole logarithm is many more, and rotating speed is slow more, and claw pole stator and the appearance of rotor magnetic pole logarithm coupling.As: rotating speed is the motor of 750R/M, and the lower claw number of poles is 4 on the stator, and the magnetic pole logarithm of rotor permanent magnet is 4 utmost points.And the rotor magnetic pole is 24 pairs, and under the condition of 50Hz, motor speed is 125R/M.The computing formula of motor speed is n=60*f/P.N is a motor speed, and f is a supply frequency, and P is the rotor magnetic pole logarithm.
The more than just slow-revving theoretical assurance of motor, but on engineering, stator is owing to be single-phase alternating current, and the magnetic field that stator produces not is rotating magnetic field; But single-phase impulsive magnetic field, like this, motor is when starting; It is uncontrollable not only to start direction, even the vibration when starting all is difficult to overcome.Common existing way is made twin coil with motor stator exactly, and the pawl utmost point is two-layer as up and down, and between the stator twin coil, inserts phase modulation electric capacity.Because the restriction of prior art middle and slow speed of revolution rotor structure usually produces vibration consumingly during electric motor starting, causes motor can not normally start.Because the restriction in bread producing machine structure and space does not allow that this motor solves the vibration problem that starts and start according to existing method.
Summary of the invention
The object of the present invention is to provide a kind of permagnetic synchronous motor and use the bread producing machine of this synchronous machine, motor is when starting, and not only according to instructions for use, can the regulated at will permagnetic synchronous motor turn to overcome the judder phenomenon when starting simultaneously.
The present invention realizes through following technical scheme:
Permagnetic synchronous motor includes stator, rotor and end cap, and said stator and rotor are arranged in the end cap inner chamber; Said rotor includes: rotor skeleton, polylith magnetite and rotating shaft, and the periphery of said rotor skeleton is provided with the groove that equates with magnetite quantity, and magnetite is embedded in the said groove, and rotating shaft is positioned at rotor skeleton middle part; Wherein, said rotor skeleton is provided with two-layer above groove combination and arranges by above-below direction, and every layer of groove combination includes a plurality of a plurality of grooves that are distributed in the periphery of rotor skeleton, and the causes rotor skeleton is the gear-like structure; In the adjacent two layers groove combination, the center line of the last low groove specific range that staggers each other; The polylith magnetite is embedded in the two-layer above groove combination, forms two-layer above magnetite combination; The center line of the neighbouring magnetite distance that staggers each other with the center line of last low groove that staggers each other is identical.
Said permagnetic synchronous motor is the controlled single-phase claw-pole permanent magnet synchronous motor of a kind of slow-speed of revolution self-starting direction.
Stagger zero to one times of pole pitch between neighbouring two-layer said magnetite combination.
The groove of said rotor skeleton adopts rectangular structure, and magnetite adopts rectangular structure.
Said rotor skeleton is provided with three layers groove combination and arranges by above-below direction.
Said rotor skeleton is provided with four layers groove combination and arranges by above-below direction.
Bread producing machine includes fuselage, is positioned at the baking box of fuselage, the loam cake that is installed in the fuselage top, heating element and bread barrel; Said loam cake, baking box and fuselage are surrounded as the manufacturing chamber of a sealing; Bread barrel is arranged in said manufacturing chamber, and heating element is positioned at baking box and is positioned at the outside of bread barrel; The below of said bread producing machine baking box is provided with the drive unit of automatic stirring raw material, and wherein: said drive unit connects the agitating device that is positioned at the bread barrel bottom through transmission connection piece; Said drive unit includes above-mentioned permagnetic synchronous motor.
To sum up, the invention has the beneficial effects as follows:
Permagnetic synchronous motor of the present invention and use the bread producing machine of this synchronous machine; Because said rotor skeleton is provided with two-layer above groove combination and arranges by above-below direction; Every layer of groove combination includes a plurality of grooves that are distributed in the periphery of rotor skeleton, and the causes rotor skeleton is the gear-like structure; In the adjacent two layers groove combination, the center line of the last low groove specific range that staggers each other; The polylith magnetite is embedded in the two-layer above groove combination, forms two-layer above magnetite combination; In the adjacent two layers magnetite combination, the center line of the neighbouring magnetite distance that staggers each other with the center line of last low groove that staggers each other is identical.Under the condition of not improving stator, made the scheme that reduces Vibration on Start-up, specific practice is:
Analyze the position (owing to receive the effect of rotor permanent magnet and claw pole stator, the position that rotor stops at every turn is comparatively fixing) that rotor stops, rotor is two-layer as up and down; And two interlayers, zero the specific range that staggers up and down to a rotor magnetic pole; Like this, when the moment of electric motor starting, rotor-position has slight moving; Just having one deck relative stator pawl utmost point has the effect in big magnetic field, makes rotor embed the stator synchronous speed very smoothly.Like this, motor just can start smoothly, and almost not vibration.
Simultaneously, adopt bread producing machine of the present invention, because motor is a slow-speed of revolution synchronous machine, drive unit directly connects agitating device through transmission connection piece, and drive unit includes synchronous machine; And because the upper end cover of bread barrel bucket seat and synchronous machine is an integral structure.Therefore, bread producing machine of the present invention has been cancelled belt and pulley gear, can bread barrel be directly installed on the upper end cover of synchronous machine; Directly drive bread barrel and stir face, so, with bread barrel bucket seat and motor as one; Save the bread producing machine bedplate; The bread barrel seat, drive system etc. directly directly are connected with bread barrel by motor.Therefore, compact conformation, environmental protection, low noise, and effectively improve the bread producing machine life problems.Cancelled parts such as original belt, belt pulley system, bedplate, practiced thrift cost, the bread producing machine structure is improved.
Description of drawings
Fig. 1 is the overall structure sketch map of permagnetic synchronous motor of the present invention;
Fig. 2 is the plan structure sketch map of permagnetic synchronous motor of the present invention;
Fig. 3 is the rotor perspective view of permagnetic synchronous motor of the present invention;
Fig. 4 is the rotor-side TV structure sketch map of permagnetic synchronous motor of the present invention;
Fig. 5 is the rotor plan structure sketch map of permagnetic synchronous motor of the present invention;
Fig. 6 is the rotor blast structural representation of permagnetic synchronous motor of the present invention.
Description of reference numerals:
1, rotating shaft, 2, go up tapping screw, 3, go up magnetite gear circle, 4, the rotor skeleton, 5, magnetite, 6, magnetite gear circle down, 7, tapping screw down.
Embodiment
The invention discloses a kind of permagnetic synchronous motor, like Fig. 1,2,3,4,5, shown in 6, include stator, rotor and end cap, said stator and rotor are arranged in the end cap inner chamber; Said rotor includes: rotor skeleton 4, polylith magnetite 5 and rotating shaft 1, and the periphery of said rotor skeleton 4 is provided with the groove that equates with magnetite quantity, and magnetite 5 is embedded in the said groove, and rotating shaft 1 is positioned at rotor skeleton 4 middle parts; Wherein, said rotor skeleton 4 is provided with two-layer above groove combination and arranges by above-below direction, and every layer of groove combination includes a plurality of a plurality of grooves that are distributed in the periphery of rotor skeleton, and the causes rotor skeleton is the gear-like structure; In the adjacent two layers groove combination, the center line of the last low groove specific range that staggers each other; Polylith magnetite 5 is embedded in the two-layer above groove combination, forms two-layer above magnetite combination; The center line of the neighbouring magnetite distance that staggers each other with the center line of last low groove that staggers each other is identical.
Said permagnetic synchronous motor is the controlled single-phase claw-pole permanent magnet synchronous motor of a kind of slow-speed of revolution self-starting direction.
Stagger zero to one times of pole pitch between the said magnetite combination of two-layer up and down adjacent two layers.
The groove of said rotor skeleton adopts rectangular structure, and magnetite adopts rectangular structure.
Said rotor skeleton is provided with three layers groove combination and arranges by above-below direction.
Said rotor skeleton is provided with four layers groove combination and arranges by above-below direction.
Said rotor also includes: go up magnetite gear circle 3 and following magnetite gear circle 6, will go up the top that magnetite gear circle 3 is fastened on rotor skeleton 4 through last tapping screw 2, will descend magnetite gear circle 6 to be fastened on the bottom of rotor skeleton 4 through following tapping screw 7.
20-60 magnetite of every layer of groove combination distribution, the adjacent magnetite of two-layer up and down magnetite combination 0.3 times of pole pitch that staggers.
Said rotating shaft 1 adopts the quadric injection mould mode to be connected with rotor skeleton 4, and rotating shaft 1 cylindrical is provided with annular knurl.
Said stator body adopts non-magnet materials such as aluminium, copper or plastics to process.
Bread producing machine includes fuselage, is positioned at the baking box of fuselage, the loam cake that is installed in the fuselage top, heating element and bread barrel; Said loam cake, baking box and fuselage are surrounded as the manufacturing chamber of a sealing; Bread barrel is arranged in said manufacturing chamber, and heating element is positioned at baking box and is positioned at the outside of bread barrel; The below of said bread producing machine baking box is provided with the drive unit of automatic stirring raw material, and wherein: said drive unit connects the agitating device that is positioned at the bread barrel bottom through transmission connection piece; Said drive unit includes above-mentioned permagnetic synchronous motor.
Above-mentioned listed concrete implementation is nonrestrictive, and to one skilled in the art, in scope, various improvement and the variation carried out all belong to the protection range of patent of the present invention.For example, as three layers or multilayer, or magnetite is as the slanted bar shape with magnetite, or magnetizes as ring-type and to be the slanted bar shape.
Claims (10)
1. permagnetic synchronous motor includes stator, rotor and end cap, and said stator and rotor are arranged in the end cap inner chamber; Said rotor includes: rotor skeleton (4), polylith magnetite (5) and rotating shaft (1), and the periphery of said rotor skeleton (4) is provided with the groove that equates with magnetite quantity, and magnetite (5) is embedded in the said groove, and rotating shaft (1) is positioned at rotor skeleton (4) middle part; It is characterized in that: said rotor skeleton (4) is provided with two-layer above groove combination and arranges by above-below direction, and every layer of groove combination includes a plurality of a plurality of grooves that are distributed in the periphery of rotor skeleton, and the causes rotor skeleton is the gear-like structure; In the adjacent two layers groove combination, the center line of the last low groove specific range that staggers each other; Polylith magnetite (5) is embedded in the two-layer above groove combination, forms two-layer above magnetite combination; The center line of the neighbouring magnetite distance that staggers each other with the center line of last low groove that staggers each other is identical.
2. permagnetic synchronous motor according to claim 1 is characterized in that: said permagnetic synchronous motor is the controlled single-phase claw-pole permanent magnet synchronous motor of a kind of slow-speed of revolution self-starting direction.
3. permagnetic synchronous motor according to claim 2 is characterized in that: stagger zero to one times of pole pitch between the said magnetite combination of two-layer up and down adjacent two layers.
4. permagnetic synchronous motor according to claim 3 is characterized in that: the groove of said rotor skeleton adopts rectangular structure, and magnetite adopts rectangular structure.
5. permagnetic synchronous motor according to claim 3; It is characterized in that: said rotor also includes: go up magnetite gear circle (3) and following magnetite gear circle (6); To go up the top that magnetite gear circle (3) is fastened on rotor skeleton (4) through last tapping screw (2), will descend magnetite gear circle (6) to be fastened on the bottom of rotor skeleton (4) through following tapping screw (7).
6. permagnetic synchronous motor according to claim 3 is characterized in that: 20-60 magnetite of every layer of groove combination distribution, the adjacent magnetite of two-layer up and down magnetite combination 0.3 times of pole pitch that staggers.
7. permagnetic synchronous motor according to claim 3 is characterized in that: said rotating shaft (1) adopts the quadric injection mould mode to be connected with rotor skeleton (4), and rotating shaft (1) cylindrical is provided with annular knurl.
8. permagnetic synchronous motor according to claim 3 is characterized in that: said rotor skeleton is provided with three layers groove combination and arranges by above-below direction.
9. permagnetic synchronous motor according to claim 3 is characterized in that: said rotor skeleton is provided with four layers groove combination and arranges by above-below direction.
10. bread producing machine includes fuselage, is positioned at the baking box of fuselage, the loam cake that is installed in the fuselage top, heating element and bread barrel; Said loam cake, baking box and fuselage are surrounded as the manufacturing chamber of a sealing; Bread barrel is arranged in said manufacturing chamber, and heating element is positioned at baking box and is positioned at the outside of bread barrel; The below of said bread producing machine baking box is provided with the drive unit of automatic stirring raw material, it is characterized in that: said drive unit connects the agitating device that is positioned at the bread barrel bottom through transmission connection piece; Said drive unit includes like any one described permagnetic synchronous motor in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102605369A CN102377304A (en) | 2010-08-20 | 2010-08-20 | Permanent-magnet synchronous motor and bread machine using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102605369A CN102377304A (en) | 2010-08-20 | 2010-08-20 | Permanent-magnet synchronous motor and bread machine using same |
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| Publication Number | Publication Date |
|---|---|
| CN102377304A true CN102377304A (en) | 2012-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102605369A Pending CN102377304A (en) | 2010-08-20 | 2010-08-20 | Permanent-magnet synchronous motor and bread machine using same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103684144A (en) * | 2013-12-04 | 2014-03-26 | 咸凯民 | Direct current unit electric motor starting method |
| CN109730170A (en) * | 2019-02-27 | 2019-05-10 | 厦门永精电机科技有限公司 | A kind of automatic electric frying pan |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001078401A (en) * | 1999-09-01 | 2001-03-23 | Toshiba Corp | Permanent magnet type synchronous motor |
| CN1375908A (en) * | 2002-04-29 | 2002-10-23 | 杜平 | Triphase AC synchronous permanent-magnet motor and generator |
| CN200944541Y (en) * | 2006-07-25 | 2007-09-05 | 周剑峰 | Skewed slot permanent-magnetic rotor |
| CN101656453A (en) * | 2008-08-18 | 2010-02-24 | 于波 | High-quality permanent magnet synchronous motor |
| CN201797387U (en) * | 2010-08-20 | 2011-04-13 | 威斯达电器(中山)制造有限公司 | Permanent magnet synchronous motor and bread maker using synchronous motor |
-
2010
- 2010-08-20 CN CN2010102605369A patent/CN102377304A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001078401A (en) * | 1999-09-01 | 2001-03-23 | Toshiba Corp | Permanent magnet type synchronous motor |
| CN1375908A (en) * | 2002-04-29 | 2002-10-23 | 杜平 | Triphase AC synchronous permanent-magnet motor and generator |
| CN200944541Y (en) * | 2006-07-25 | 2007-09-05 | 周剑峰 | Skewed slot permanent-magnetic rotor |
| CN101656453A (en) * | 2008-08-18 | 2010-02-24 | 于波 | High-quality permanent magnet synchronous motor |
| CN201797387U (en) * | 2010-08-20 | 2011-04-13 | 威斯达电器(中山)制造有限公司 | Permanent magnet synchronous motor and bread maker using synchronous motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103684144A (en) * | 2013-12-04 | 2014-03-26 | 咸凯民 | Direct current unit electric motor starting method |
| CN109730170A (en) * | 2019-02-27 | 2019-05-10 | 厦门永精电机科技有限公司 | A kind of automatic electric frying pan |
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Application publication date: 20120314 |