CN207719909U - Permanent magnet DC motor and food processor - Google Patents
Permanent magnet DC motor and food processor Download PDFInfo
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- CN207719909U CN207719909U CN201720820785.6U CN201720820785U CN207719909U CN 207719909 U CN207719909 U CN 207719909U CN 201720820785 U CN201720820785 U CN 201720820785U CN 207719909 U CN207719909 U CN 207719909U
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- 235000013305 food Nutrition 0.000 title claims abstract description 31
- 238000004804 winding Methods 0.000 claims abstract description 98
- 239000002184 metal Substances 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 10
- 238000010411 cooking Methods 0.000 abstract description 9
- 238000005520 cutting process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000005498 polishing Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 235000010469 Glycine max Nutrition 0.000 description 3
- 244000068988 Glycine max Species 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 3
- 239000008267 milk Substances 0.000 description 3
- 210000004080 milk Anatomy 0.000 description 3
- 235000013336 milk Nutrition 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 235000021067 refined food Nutrition 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000009246 food effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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Abstract
A kind of permanent magnet DC motor of the utility model offer and food processor, permanent magnet DC motor includes field frame assembly and rotor assembly, line embedding groove is offered on the surface of commutator, winding wound on rotor core after in the line embedding groove for being wound into commutator segment, winding is fixed in line embedding groove, and then ensure that fixed winding can not contact on two adjacent commutator segments, while the circumferential width of line embedding groove is d, the circumferential width of commutator segment is D, and d meets：0<D≤D*1/3, ensure there are enough width that can accommodate sufficiently wide winding in line embedding groove, after increasing line embedding groove and winding, so that the electric current by winding increases, and then ensure that permanent magnet DC motor provided by the utility model has larger power, when ensureing to need to process more food in cooking machine, can also have enough rotating speeds to carry out the processing such as high-speed cutting polishing to food, the mouthfeel for improving food, improves the competitiveness of product in market.
Description
Technical field
The utility model is related to household appliance technical fields, more specifically, are related to a kind of permanent magnet DC motor and food preparation
Machine.
Background technology
It with people's living standard is continuously improved, people are to food processing mode it is also proposed that more and more demands, food
Object processor (such as cooking machine, soy bean milk making machine, wall-breaking machine or juice extractor) has the diversity of processed food because of it, can meet different use
The different demands at family, are gradually favored by consumer；And it one of influences an important factor for cooking machine is processed food and is
The load speed of motor internal, it is therefore desirable to improve the load speed of motor, and then guarantee pair by improving the power of motor
The polishing effect of food；Cooking machine in the related art, due to using hook formula commutator, in the line by providing winding through carrying
When high power so that the distance between two adjacent windings reduce, and which results in two adjacent commutator segments easily to go out
Existing short circuit, influences the service life of motor.
Therefore, design it is a kind of can improve coil diameter, and ensure motor permanent magnet DC motor and food safe to use
Processor becomes urgent problem to be solved.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.
For this purpose, a purpose of the utility model is, a kind of permanent magnet DC motor is provided.
Another purpose of the utility model is, provides a kind of food processor.
To achieve the above object, embodiment according to the present utility model provides a kind of permanent magnet DC motor, is used for food
Processor, motor include field frame assembly and rotor assembly, and rotor assembly includes winding, rotor core and commutator, rotor assembly
Shaft sequentially pass through rotor core and commutator；Commutator includes commutator segment, and commutator segment is arranged on the periphery of commutator,
The surface of commutator segment offers line embedding groove, and winding is wrapped between rotor core and line embedding groove, and winding is adapted with line embedding groove；Its
In, the width of line embedding groove is d, and the width of commutator segment is D, and the width d of line embedding groove meets：0<d≤D*1/3.
Permanent magnet DC motor provided by the utility model includes field frame assembly and rotor assembly, wherein rotor assembly include around
Group, rotor core and commutator, rotor core and commutator are set in the shaft of rotor assembly, and commutator be located at turn
On one end of the non-output end of axis, at least one commutator segment is provided on commutator periphery, and open up on the surface of commutator segment
After thering is line embedding groove, winding to be wound on rotor core in the line embedding groove for being wound into commutator segment, the coiling of winding be wrapped in around
In wire casing, and the quantity of winding slot is less than the quantity of commutator segment, due to by offering line embedding groove on commutator segment so that around
Group can be fixed in line embedding groove, and then ensure that fixed winding can not contact on two adjacent commutator segments, wherein embedding
The width of slot is d, and the width of commutator segment is D, and the width d of line embedding groove meets：0<D≤D*1/3, it is preferable that ensure line embedding groove
Inside there are enough width that can accommodate sufficiently wide winding, a diameter of of coiling of winding compatible with line embedding groove is more than at this time
Equal to 0.5mm, and preferably 0.8mm, and in order to ensure the size of commutator adapt to diameter more than or equal to 0.5mm around
Group, by commutator be directly disposed as be more than 28mm, may make commutator that can possess the outer perimeter of bigger, and then can guarantee wherein
Commutator segment can possess sufficiently large size setting reversing groove, to accommodate diameter in reversing groove more than or equal to 0.5mm's
Winding, but the diameter of commutator is set smaller than 45mm, preferably 36mm, it avoids the diameter of commutator being set as excessive
When so that the linear velocity when commutator rotates on its periphery is excessive, the centrifugation that commutator segment can be caused to be generated in high-speed rotation
Power throws away commutator segment, the problem of causing film flying；After increasing line embedding groove and winding so that increased by the electric current of winding, in turn
It ensure that permanent magnet DC motor provided by the utility model has larger power so that permanent magnet DC motor at work can be same
When meet the torque of output and be more than or equal to the performance requirement that 0.5Nm and rotating speed are more than or equal to 10krpm, this ensures that
When needing to process more food in cooking machine, can also have enough rotating speeds to carry out the processing such as high-speed cutting polishing to food,
Spot speed when ensureing the blade cutting of cooking machine or hit food and the cutting frequency, to reach balanced processing effect,
The mouthfeel for improving food, improves the competitiveness of product in market.
In addition, the permanent magnet DC motor and food processor that are provided according to the utility model above-described embodiment are also with as follows
Additional technical feature：
In any of the above-described technical solution, it is preferable that the width d of the line embedding groove meets：D*1/6<d≤D*1/3.
In the technical scheme, it is further defined by the width of line embedding groove so that embedding in above-mentioned technical proposal
For the width of slot after the restriction with the upper limit, the restriction for continuing lower limit to the width of line embedding groove ensures the width of line embedding groove
Degree is not less than the 1/6 of the width of commutator segment so that diameter can be accommodated by meeting in the case where line embedding groove is sufficiently wide in line embedding groove
To be more than or equal to 0.5mm, and the diameter of the coiling of the winding of preferably 0.8mm, after increasing line embedding groove and winding so that by around
The electric current of group increases, and then ensure that permanent magnet DC motor provided by the utility model has larger power so that permanent magnetism is straight
Galvanic electricity machine can meet performance of the torque of output more than or equal to 0.5Nm and rotating speed more than or equal to 10krpm simultaneously at work to be wanted
It asks.
In any of the above-described technical solution, it is preferable that be provided with and protrude outward close to one end of rotor core in commutator segment
Boss, line embedding groove is opened on boss, and the length of line embedding groove is equal to the length of boss so that line embedding groove is on the surface of boss
Form straight slot.
In the technical scheme, outwardly projecting boss is set on one end in commutator segment close to rotor core, by embedding
Slot is opened on boss, and makes the equal length of the length and boss of line embedding groove, axial direction shape of the boss in commutator
At straight slot, it is set to be entered in line embedding groove by the bottom surface of boss when winding winding；Boss is set on commutator segment, ensures to change
There are enough spaces to remove setting line embedding groove on chip, and since boss protrudes from the surface of commutator segment, consolidates to winding
Periodically, can be convenient for being operated in line embedding groove.
In any of the above-described technical solution, it is preferable that the quantity of commutator segment is multiple, and multiple commutator segments connect to form ring
Shape, and there is gap between each two adjacent commutator segment.
In the technical scheme, the quantity of commutator segment is set as multiple so that multiple commutator segments are successively in commutator
It around setting on periphery, and is not in contact between two adjacent commutator segments, and ensures have between two adjacent commutator segments
Have gap, by preset clearance can make between commutator segment will not conductive communication,.
In any of the above-described technical solution, it is preferable that gap is more than or equal to 0.5mm, and insulating trip is provided in gap,
Insulating trip is adapted with gap, and two adjacent commutator segments are obstructed.
In the technical scheme, by gap setting be more than or equal to 0.5mm, ensure that between two commutator segments it is good absolutely
The effect of edge, and insulating trip is provided in gap, two adjacent commutator segments are isolated, between insulating trip and commutator segment
Gap be adapted.
In any of the above-described technical solution, it is preferable that winding is wrapped on rotor core, and the both ends of the coiling of winding are embedding
In line embedding groove.
In the technical scheme, winding is wound on the winding slot of rotor core, in winding later by changing first
The surface adjacent with rotor core to piece enters in line embedding groove, and the both ends of the coiling of winding are embedded in the line embedding groove, example
If one end of same root coiling is in line embedding groove, then the other end is then embedded in adjacent line embedding groove, i.e., same root around
Line is not to be embedded in the same line embedding groove, and bending extends and twined to the direction of rotor core again inside line embedding groove
Around so that winding changes method in the inside of line embedding groove, is connected to commutator segment with rotor core by winding.
In any of the above-described technical solution, it is preferable that the sectional area of the coiling of winding is less than the sectional area of line embedding groove, makes embedding
Line embedding groove can not be exposed in the radial direction in commutator by entering the coiling of the winding into line embedding groove.
In the technical scheme, the sectional area of line embedding groove is set greater than to the sectional area of the coiling of winding so that embedding
Enter the completion of the winding into line embedding groove to extend into line embedding groove, without the radial direction exposing in commutator, prevents winding from revealing
Go out the outside of commutator and is in contact with brush and generates conducting.
In any of the above-described technical solution, it is preferable that commutator segment is an integral structure with boss.
In the technical scheme, commutator segment is preferably an integral structure with boss, because of the mechanical property being an integral structure
It is good, it is thus possible to the bonding strength between commutator segment and boss to be improved, in addition, can be made into integration commutator segment with boss, batch
Production, to improve the processing efficiency of product, reduces the processing cost of product.
In any of the above-described technical solution, it is preferable that commutator segment is metal commutator segment；And/or winding is metal winding.
In the technical scheme, it sets commutator segment to metal commutator segment, sets winding to metal winding, effectively protect
Transmission of the electric current between commutator segment and winding is demonstrate,proved so that electric energy can pass sequentially through metal commutator segment and be transmitted to metal winding
On, then be transmitted on rotor core by metal winding and carry out rotation driving.
Second purpose according to the present utility model, the utility model provide a kind of food processor, have first party
The permanent magnet DC motor that face any embodiment provides, therefore, the food processor that the embodiments of the present invention provide have the
The whole advantageous effects for the permanent magnet DC motor that one side any embodiment provides, it is numerous to list herein.
In any of the above-described technical solution, it is preferable that food processor be cooking machine, blender, soy bean milk making machine, wall-breaking machine or
Juice extractor.
Additional aspect and advantage according to the present utility model will provide in following description section, partly will be from following
Become apparent in description, or recognize by the practice of the utility model.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination following accompanying drawings to embodiment
Become apparent and is readily appreciated that, wherein：
Fig. 1 shows the structural schematic diagram for the permanent magnet DC motor that one embodiment of the utility model provides；
Fig. 2 shows the explosive views for the permanent magnet DC motor that one embodiment of the utility model provides；
Fig. 3 shows the structural schematic diagram for the commutator that one embodiment of the utility model provides；
Fig. 4 shows the another structural schematic diagram for the commutator that one embodiment of the utility model provides；
Fig. 5 shows that partial enlargement of the commutator of one embodiment offer of the utility model shown in Fig. 4 at A shows
It is intended to.
Reference numeral：
Wherein, the correspondence in Fig. 1 to Fig. 5 between reference numeral and component names is：
2 rotor assemblies, 22 windings, 24 rotor cores, 26 commutators, 262 commutator segments, 264 line embedding grooves, 266 boss, 268
Gap, 4 field frame assemblies.
Specific implementation mode
In order to be more clearly understood that the above objects, features, and advantages of the utility model, below in conjunction with the accompanying drawings and have
The utility model is further described in detail in body embodiment.It should be noted that in the absence of conflict, this Shen
The feature in embodiment and embodiment please can be combined with each other.
Many details are elaborated in the following description in order to fully understand the utility model, still, this practicality
It is novel to be implemented different from mode described here using other, therefore, the scope of protection of the utility model not by
The limitation of following public specific embodiment.
The permanent magnet DC motor that one embodiment according to the present utility model provides is described referring to Fig. 1 to Fig. 5.
As shown in Figure 1, Figure 2 and shown in Fig. 5, embodiment according to the present utility model provides a kind of permanent magnet DC motor, is used for
Food processor, motor include field frame assembly 4 and rotor assembly 2, and rotor assembly 2 includes winding 22, rotor core 24 and commutation
Device 26 is provided with winding slot on rotor core 24, and the shaft of rotor assembly 2 sequentially passes through rotor core 24 and commutator 26；It changes
Include commutator segment 262 to device 26, commutator segment 262 is arranged on the periphery of commutator 26, is offered on the surface of commutator segment 262 embedding
Wire casing 264, winding 22 are wrapped between rotor core 24 and line embedding groove 264, and winding 22 is adapted with line embedding groove 264；Winding slot
Quantity be less than commutator segment 262 quantity；Wherein as shown in Figure 5, the width of line embedding groove is d, and the width of commutator segment is D, and
The width d of line embedding groove meets：0<d≤D*1/3.
Permanent magnet DC motor provided by the utility model includes field frame assembly 4 and rotor assembly 2, and wherein rotor assembly 2 wraps
Winding 22, rotor core 24 and commutator 26 are included, rotor core 24 and commutator 26 are set in the shaft of rotor assembly 2,
And commutator 26 is located on one end of the non-output end of shaft, and commutator is provided at least one commutator segment 26 on 26 periphery,
And line embedding groove 264 is offered on the surface of commutator 26, winding 22 is being wound into commutator segment after being wound on rotor core 24
In 262 line embedding groove 264, winding slot is provided on rotor core 24, the coiling of winding 22 is wrapped in winding slot, and around
The quantity of wire casing is less than the quantity of commutator segment 262, due to by offering line embedding groove 264 on commutator segment 262 so that winding 22
It can be fixed in line embedding groove 264, and then ensure that fixed winding 22 can not contact on two adjacent commutator segments 262,
In, the width of line embedding groove is d, and the width of commutator segment is as shown in Figure 5 for the mark of D, d and D, and the width d of line embedding groove meets：
0<D≤D*1/3, it is preferable that ensure line embedding groove 264 in have enough width that can accommodate sufficiently wide winding 22, at this time with it is embedding
The a diameter of of the coiling of 264 compatible winding 22 of wire casing is more than or equal to 0.5mm, and preferably 0.8mm, and in order to ensure to change
The winding 22 that diameter is more than or equal to 0.5mm is adapted to the size of device 26, it, can by being directly disposed as more than 28mm for commutator 26
Enable commutator 26 to possess the outer perimeter of bigger, and then can guarantee that commutator segment 262 therein can possess sufficiently large size
Reversing groove is set, is more than or equal to the winding 22 of 0.5mm to accommodate diameter in reversing groove, but the diameter of commutator 26 is set
It is set to and is less than 45mm, preferably 36mm, when the diameter by commutator 26 being avoided to be set as excessive so that when commutator 26 rotates
Linear velocity on its periphery is excessive, and the centrifugal force that commutator segment 262 is generated in high-speed rotation can be caused to throw away commutator segment 262,
The problem of causing film flying；After increasing line embedding groove 264 and winding 22 so that increased by the electric current of winding 22, and then ensure that this
The permanent magnet DC motor that utility model provides has larger power so that permanent magnet DC motor can meet defeated simultaneously at work
The torque gone out is more than or equal to 0.5Nm and rotating speed is more than or equal to the performance requirement of 10krpm, this ensures that in cooking machine
When needing to process more food, can also have enough rotating speeds to carry out the processing such as high-speed cutting polishing to food, to ensure to expect
Spot speed and the cutting frequency when blade of reason machine cuts or hit food improve food to reach balanced processing effect
The mouthfeel of product, improves the competitiveness of product in market.
As shown in figure 5, in any of the above-described technical solution, it is preferable that the width d of line embedding groove 264 meets：D*1/6<d≤
D*1/3。
In the technical scheme, it is further defined by the width of line embedding groove 264 so that embedding in above-mentioned technical proposal
The width of wire casing 264 is after the restriction with the upper limit, the restriction for continuing lower limit to the width of line embedding groove 264, ensures embedding
The width of wire casing 264 is not less than the 1/6 of the width of commutator segment so that meets line embedding groove in the case where line embedding groove 264 is sufficiently wide
Can be accommodated in 264 it is a diameter of be more than or equal to 0.5mm, and the diameter of the coiling of the winding 22 of preferably 0.8mm increases line embedding groove
264 and winding 22 after so that increased by the electric current of winding 22, and then ensure that permanent magnet DC motor provided by the utility model
With larger power so that permanent magnet DC motor can meet simultaneously at work output torque be more than or equal to 0.5Nm and
Rotating speed is more than or equal to the performance requirement of 10krpm.
As shown in figure 3, in one embodiment of the utility model, it is preferable that in commutator segment 262 close to rotor core 24
One end be provided with outwardly projecting boss 266, line embedding groove 264 is opened on boss 266, and the length of line embedding groove 264 is equal to
The length of boss 266 so that line embedding groove 264 forms straight slot on the surface of boss 266.
In this embodiment, outwardly projecting boss 266 is set on one end of rotor core 24 in commutator segment 262,
Line embedding groove 264 is opened on boss 266, and makes the equal length of the length and boss 266 of line embedding groove 264, boss 266
Straight slot is formed in the axial direction of commutator 26, it is made to enter line embedding groove by the bottom surface of boss 266 when winding winding 22
In 264；On commutator segment 262 be arranged boss 266, guarantee change on chip have enough spaces go setting line embedding groove 264, and by
The surface of commutator segment 262 is protruded from boss 266, when winding 22 is fixed, can be convenient for being grasped in line embedding groove 264
Make.
As described in Fig. 4 and Fig. 5, in one embodiment of the utility model, it is preferable that the quantity of commutator segment 262 is more
A, multiple commutator segments 262 form annular at connection, and have gap 268 between each two adjacent commutator segment 262.
In this embodiment, the quantity of commutator segment 262 is set as multiple so that multiple commutator segments 262 are commutating successively
It around setting on the periphery of device 26, and is not in contact between two adjacent commutator segments 262, and ensures two adjacent commutations
There is gap 268 between piece 262, by preset clearance 268 can make between commutator segment 262 will not conductive communication,.
In one embodiment of the utility model, it is preferable that gap 268 is more than or equal to 0.5mm, and in gap 268
It is provided with insulating trip, insulating trip is adapted with gap 268, and two adjacent commutator segments 262 are obstructed.
In this embodiment, gap 268 is set greater than equal to 0.5mm, is ensure that good between two commutator segments 262
Insulation effect, and be provided with insulating trip in gap 268, two adjacent commutator segments 262 be isolated, insulating trip with
Gap 268 between commutator segment 262 is adapted.
In one embodiment of the utility model, it is preferable that winding 22 is wrapped on rotor core 24, winding 22 around
The both ends of line are embedded in line embedding groove 264.
In this embodiment, winding 22 is wound on the winding slot of rotor core 24, Zhi Houyou first in winding
The surface adjacent with rotor core 24 of commutator segment 262 enters in line embedding groove 264, and the both ends of the coiling of winding 22 are embedded in embedding
In slot 264, such as one end of same root coiling is embedded in a line embedding groove 264, then the other end is then embedded in adjacent line embedding groove
In 264, i.e. same root coiling is not in the same line embedding groove 264, and in 264 inside bending of line embedding groove again to rotor iron
The direction of core 24 extends and is wound so that winding 22 changes method in the inside of line embedding groove 264, will be commutated by winding 22
Piece 262 is connected to rotor core 24.
In one embodiment of the utility model, it is preferable that the sectional area of the coiling of winding 22 is less than line embedding groove 264
Sectional area makes the coiling of the winding being embedded into line embedding groove 264 22 that can not expose line embedding groove in the radial direction in commutator 26
264。
In this embodiment, the sectional area of line embedding groove 264 is set greater than to the sectional area of the coiling of winding 22 so that
It is embedded into the completion of the winding 22 in line embedding groove 264 to extend into line embedding groove 264, without the radial direction dew in commutator 26
Go out, prevents winding 22 from exposing the outside of commutator 26 and being in contact with brush and generate conducting.
In one embodiment of the utility model, it is preferable that commutator segment 262 is an integral structure with boss 266.
In this embodiment, commutator segment 262 is preferably an integral structure with boss 266, because of the mechanics being an integral structure
Performance is good, it is thus possible to the bonding strength between commutator segment 262 and boss 266 is improved, in addition, can be by commutator segment 262 and boss
266 are made into integration, and batch production to improve the processing efficiency of product, reduces the processing cost of product.
In one embodiment of the utility model, it is preferable that commutator segment 262 is metal commutator segment 262；And/or winding
22 be metal winding 22.
In this embodiment, it sets commutator segment 262 to metal commutator segment 262, sets winding 22 to metal winding 22,
It is effectively guaranteed transmission of the electric current between commutator segment 262 and winding 22 so that electric energy can pass sequentially through metal commutator segment 262
It is transmitted in metal winding 22, then is transmitted on rotor core 24 by metal winding 22 and carries out rotation driving.
Second purpose according to the present utility model, the utility model provide a kind of food processor, have first party
The permanent magnet DC motor that face any embodiment provides, therefore, the food processor that the embodiments of the present invention provide have the
The whole advantageous effects for the permanent magnet DC motor that one side any embodiment provides, it is numerous to list herein.
In one embodiment of the utility model, it is preferable that food processor is cooking machine, blender, soy bean milk making machine, breaks
Wall machine or juice extractor.
In the description of this specification, term " multiple " then refers to two or more, unless otherwise restricted clearly, art
The orientation or positional relationship of the instructions such as language "upper", "lower" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
Describe the utility model and simplify to describe, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore should not be understood as limiting the present invention；Term " connection ", " installation ", " Gu
It is fixed " etc. shall be understood in a broad sense, for example, " connection " may be a fixed connection, may be a detachable connection, or integrally connect
It connects；It can be directly connected, it can also be indirectly connected through an intermediary.For the ordinary skill in the art, may be used
To understand the concrete meaning of above-mentioned term in the present invention as the case may be.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least the one of the utility model
In a embodiment or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment
Or example.Moreover, the particular features, structures, materials, or characteristics of description can be in any one or more embodiments or example
In can be combined in any suitable manner.
The preferred embodiment that these are only the utility model, is not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of permanent magnet DC motor, it to be used for food processor, the permanent magnet DC motor includes field frame assembly and rotor assembly,
It is characterized in that, the permanent magnet DC motor includes：
The rotor assembly includes winding, rotor core and commutator, and the shaft of the rotor assembly sequentially passes through the rotor
Iron core and the commutator；
The commutator includes commutator segment, and the commutator segment is arranged on the periphery of the commutator, in the table of the commutator segment
Face offers line embedding groove, and the winding is wrapped between the rotor core and the line embedding groove, the winding and the embedding
Slot is adapted；
Wherein, the circumferential width of the line embedding groove is d, and the circumferential width of the commutator segment is D, and the width d of the line embedding groove
Meet：0<d≤D*1/3.
2. permanent magnet DC motor according to claim 1, which is characterized in that
The circumferential width d of the line embedding groove meets：D*1/6≤d≤D*1/3.
3. permanent magnet DC motor according to claim 1, which is characterized in that
One end of the rotor core is provided with outwardly projecting boss in the commutator segment, the line embedding groove is opened in institute
It states on boss, and the length of the line embedding groove is equal to the length of the boss so that the line embedding groove is on the surface of the boss
Form straight slot.
4. permanent magnet DC motor according to claim 1, which is characterized in that
The quantity of the commutator segment is multiple, and multiple commutator segments connect to form annular, and each two adjacent commutation
There is gap between piece.
5. permanent magnet DC motor according to claim 4, which is characterized in that
The gap is more than or equal to 0.5mm, and insulating trip is provided in the gap, and the insulating trip is mutually fitted with the gap
Match, two adjacent commutator segments are obstructed.
6. permanent magnet DC motor according to claim 1, which is characterized in that
The winding is wrapped on the rotor core, and the both ends of the coiling of the winding are embedded in the line embedding groove.
7. permanent magnet DC motor according to claim 6, which is characterized in that
The sectional area of the coiling of the winding be less than the line embedding groove sectional area, make to be embedded into the line embedding groove it is described around
The coiling of group can not expose the line embedding groove in the radial direction in commutator.
8. permanent magnet DC motor according to claim 3, which is characterized in that
The commutator segment is an integral structure with the boss.
9. permanent magnet DC motor according to any one of claim 1 to 8, which is characterized in that
The commutator segment is metal commutator segment；And/or
The winding is metal winding.
10. a kind of food processor, which is characterized in that the food processor includes as described in any one of claim 1 to 9
Permanent magnet DC motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720820785.6U CN207719909U (en) | 2017-07-07 | 2017-07-07 | Permanent magnet DC motor and food processor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720820785.6U CN207719909U (en) | 2017-07-07 | 2017-07-07 | Permanent magnet DC motor and food processor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207719909U true CN207719909U (en) | 2018-08-10 |
Family
ID=63063688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720820785.6U Active CN207719909U (en) | 2017-07-07 | 2017-07-07 | Permanent magnet DC motor and food processor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207719909U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109217508A (en) * | 2017-07-07 | 2019-01-15 | 广东美的生活电器制造有限公司 | Permanent magnet DC motor and food processor |
-
2017
- 2017-07-07 CN CN201720820785.6U patent/CN207719909U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109217508A (en) * | 2017-07-07 | 2019-01-15 | 广东美的生活电器制造有限公司 | Permanent magnet DC motor and food processor |
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