CN206992825U - Permanent magnet DC motor and food processor - Google Patents

Abstract

Permanent magnet DC motor provided by the utility model includes field frame assembly and rotor assembly,Line embedding groove is offered on the surface of commutator,Winding is being wound into the line embedding groove of commutator segment after being wound on rotor core,Due to by offering line embedding groove on commutator segment,Winding is fixed in line embedding groove,And then it ensure that winding fixed on two adjacent commutator segments can not contact,Now the diameter of winding is set greater than to be equal to 0.5mm,It can ensure that adjacent winding can not contact at commutator,And after coil diameter is increased,So that increased by the electric current of winding,And then it ensure that permanent magnet DC motor has larger power,This ensures that when needing to process more food in food processor,Also enough rotating speeds can carry out the processing such as high-speed cutting polishing to food,Improve the competitiveness of product in market.

Description

Permanent magnet DC motor and food processor

Technical field

Household appliance technical field is the utility model is related to, more specifically, is related to a kind of permanent magnet DC motor and food preparation Machine.

Background technology

With people's living standard improve constantly, people are to food processing mode it is also proposed that increasing demand, food Thing processor (such as wall-breaking machine, juice extractor, food processor and soy bean milk making machine) has the diversity of processed food because of it, can meet not With the different demands of user, gradually favored by consumer；And influence that food processor is processed to food it is important because One of element is the load speed of inner permanent magnetic direct current generator, it is therefore desirable to is improved forever by improving the power of permanent magnet DC motor The load speed of magnetic direct current generator, and then ensure the polishing effect to food；Food processor in the related art, due to adopting With hooking formula commutator, when by providing the line of winding through improving power so that the distance between two adjacent windings reduce, Which results in adjacent two commutator segment easily to there is short circuit, influences the service life of permanent magnet DC motor.

Therefore, coil diameter can be improved by designing one kind, and ensure permanent magnet DC motor permanent direct-current electric safe to use Machine and food processor turn into urgent problem to be solved.

Utility model content

The utility model is intended at least solve one of technical problem present in prior art.

Therefore, a purpose of the present utility model is, there is provided a kind of permanent magnet DC motor.

Another purpose of the present utility model is, there is provided a kind of food processor.

To achieve the above object, a kind of permanent magnet DC motor is provided according to embodiment of the present utility model, for food Processor, permanent magnet DC motor include field frame assembly and rotor assembly, and rotor assembly includes winding, rotor core and commutator； Commutator includes at least one commutator segment, and commutator segment is arranged on the periphery of commutator, and rule is offered on the surface of commutator segment Groove, winding are wound in line embedding groove by rotor core；Wherein, the diameter of the line footpath of winding is more than or equal to 0.5mm.

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 rotating shaft of rotor assembly, and commutator positioned at turn On one end of the non-output end of axle, at least one commutator segment is provided with commutator periphery, and open up on the surface of commutator There are line embedding groove, winding being wound into after being wound on rotor core in the line embedding groove of commutator segment, due to by being opened on commutator segment Provided with line embedding groove so that winding can be fixed in line embedding groove, and then ensure that winding fixed on two adjacent commutator segments It can not contact, now be set greater than the diameter of winding to be equal to 0.5mm, or the cross-sectional area of winding is set greater than In 0.2mm², can ensure that adjacent winding can not contact at commutator, preferably be arranged to the diameter of winding 0.8mm, and after coil diameter is increased so that increased by the electric current of winding, and then ensure that provided by the utility model Permanent magnet DC motor has larger power so that permanent magnet DC motor can meet that the moment of torsion of output is more than simultaneously at work Be more than or equal to 10krpm performance requirement in 0.5Nm and rotating speed, this ensures that needed in food processor processing compared with During more food, also there can be enough rotating speeds to carry out the processing such as high-speed cutting polishing to food, to ensure food processor Blade cuts or hit the spot speed and the cutting frequency during food, to reach balanced processing effect, improves the mouth of food Sense, 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 scheme, it is preferable that the diameter of commutator is more than 28mm and is less than 45mm.

In the technical scheme, in order to ensure that the size of commutator adapts to the winding that diameter is more than or equal to 0.5mm, it will change To device be directly disposed as be more than 28mm, may be such that commutator can possess bigger outer perimeter, and then can guarantee that commutation therein Piece can possess sufficiently large size and set reversing groove, to accommodate the winding that diameter is more than or equal to 0.5mm in reversing groove, but It is that the diameter of commutator is set smaller than 45mm, is preferably provided with 36mm, when avoiding the diameter of commutator being arranged to excessive, So that the linear velocity when commutator rotates on its periphery is excessive, it can cause commutator segment will in centrifugal force caused by high-speed rotation Commutator segment is thrown away, the problem of causing film flying, ensure that the security performance of product.

In any of the above-described technical scheme, it is preferable that be provided with commutator segment close to one end of rotor core outstanding 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 groove.

In the technical scheme, outstanding boss is set on the one end of commutator segment close to rotor core, by rule Groove is opened on boss, and causes the length of line embedding groove and the equal length of boss, axial direction shape of the boss in commutator Into groove, it is set to be entered by the bottom surface of boss in line embedding groove when winding winding；Boss is set on commutator segment, ensures to change There are enough spaces to go to set line embedding groove on chip, and because boss protrudes from the surface of commutator segment, consolidate to winding Regularly, can be easy to be operated in line embedding groove.

In any of the above-described technical scheme, 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 rotor core first in winding, afterwards by commutator segment with turning The adjacent surface of sub- iron core is entered in line embedding groove, and the both ends of the coiling of winding are in line embedding groove, such as same root coiling One end in line embedding groove, then for the other end then in adjacent line embedding groove, i.e. same root coiling is not embedded in same In one line embedding groove, and bending extends and is wound to the direction of rotor core again inside line embedding groove so that winding exists The inside of line embedding groove changes method, is connected commutator segment with rotor core by winding.

In any of the above-described technical scheme, it is preferable that insulating barrier is arranged at intervals with winding, insulating barrier is covered in not embedding Enter the surface of the winding in line embedding groove.

In the technical scheme, insulating barrier is provided with winding, is prevented in winding so that the various pieces of winding are led It is electrically connected and produces short circuit, and in the winding being embedded into line embedding groove, due to be connected with commutator segment, therefore can not set herein Insulating barrier is put, but for the ease of making, winding can all make its surface cover one layer of winding in production, and in by line embedding groove When winding is fixed, the insulating barrier in line embedding groove is melted by high temperature so that winding is directly in contact with commutator segment.

In any of the above-described technical scheme, 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 the adjacent commutator segment of each two.

In the technical scheme, the quantity of commutator segment is arranged to multiple so that multiple commutator segments are successively in commutator Around setting on periphery, and it is not in contact between adjacent two commutator segments, and ensures have between two adjacent commutator segments Have gap, by preset clearance can make between commutator segment will not conductive communication, and to ensure the effect of insulation, can Megohmite insulant is provided with gap, commutator segment is isolated.

In any of the above-described technical scheme, it is preferable that commutator segment and boss are integral type structure.

In the technical scheme, commutator segment and boss are preferably integral structure, because the mechanical property of 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 scheme, it is preferable that commutator segment is metal commutator segment；And/or winding is metal winding.

In the technical scheme, commutator segment is arranged to metal commutator segment, winding is arranged to metal winding, effectively protected 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 delivered to metal winding On, then be delivered to by metal winding on rotor core and carry out rotation driving.

According to second purpose of the present utility model, the utility model provides a kind of food processor, has first party The permanent magnet DC motor that face any embodiment provides, therefore, the food processor that embodiment of the present utility model provides have the The whole beneficial 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 scheme, it is preferable that food processor is wall-breaking machine, juice extractor, mixer, cooking machine or It is any in soy bean milk making machine.

It will be provided according to additional aspect and advantage of the present utility model in following description section, partly by from following Become obvious in description, or recognized by practice of the present utility model.

Brief description of the drawings

Of the present utility model above-mentioned and/or additional aspect and advantage will in the description from combination accompanying drawings below to embodiment Become obvious and be readily appreciated that, wherein：

Fig. 1 shows the structural representation for the permanent magnet DC motor that one embodiment of the present utility model provides；

Fig. 2 shows the explosive view for the permanent magnet DC motor that one embodiment of the present utility model provides；

Fig. 3 shows the structural representation for the commutator that one embodiment of the present utility model provides；

Fig. 4 shows the another structural representation for the commutator that one embodiment of the present utility model provides；

Fig. 5 shows that partial enlargement of the commutator of one embodiment of the present utility model offer shown in Fig. 4 at A shows It is intended to.

Reference：

Wherein, corresponding relations of the Fig. 1 into Fig. 5 between reference 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.

Embodiment

In order to be more clearly understood that above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the accompanying drawings and tool The utility model is further described in detail body embodiment.It should be noted that in the case where not conflicting, this Shen The feature in embodiment and embodiment please can be mutually combined.

Many details are elaborated in the following description in order to fully understand the utility model, still, this practicality It is new to be different from mode described here using other and implement, therefore, the scope of protection of the utility model not by The limitation of following public specific embodiment.

The permanent magnet DC motor provided according to one embodiment of the present utility model is described referring to Fig. 1 to Fig. 5.

As depicted in figs. 1 and 2, a kind of permanent magnet DC motor is provided according to embodiment of the present utility model, for food Processor, permanent magnet DC motor include field frame assembly 4 and rotor assembly 2, and rotor assembly 2 includes winding 22, the and of rotor core 24 Commutator 26；Commutator 26 includes at least one commutator segment 262, and commutator segment 262 is arranged on the periphery of commutator 26, commutated The surface of piece 262 offers line embedding groove 264, and winding 22 is wound in line embedding groove 264 by rotor core 24；Wherein, winding 22 The diameter of line footpath is more than or equal to 0.5mm.

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 rotating shaft of rotor assembly 2, And commutator 26 is located on one end of the non-output end of rotating shaft, at least one commutator segment 26 is provided with the periphery of commutator 26, 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, due to by offering line embedding groove 264 on commutator segment 262 so that winding 22 can be fixed on embedding In wire casing 264, and then it ensure that winding 22 fixed on two adjacent commutator segments 262 can not contact, now by winding 22 Diameter is set greater than being equal to 0.5mm, or the cross-sectional area of winding 22 is set greater than to be equal to 0.2mm², can ensure Adjacent winding 22 can not be contacted at commutator 26, and the diameter of winding 22 preferably is arranged into 0.8mm, and increase around After 22 diameters of group so that increased by the electric current of winding 22, and then ensure that permanent direct-current electric equipment provided by the utility model There is larger power so that permanent magnet DC motor can meet that the moment of torsion of output is more than or equal to 0.5Nm and turned simultaneously at work Speed is more than or equal to 10krpm performance requirement, this ensures that when needing to process more food in food processor, There can be enough rotating speeds to carry out the processing such as high-speed cutting polishing to food, to ensure the cutting of the blade of food processor or hit Spot speed and the cutting frequency during food, to reach balanced processing effect, improve the mouthfeel of food, improve product The market competitiveness.

In one embodiment provided by the utility model, it is preferable that the diameter of commutator 26 is more than 28mm and is less than 45mm.

In this embodiment, will in order to ensure that the size of commutator 26 adapts to the winding 22 that diameter is more than or equal to 0.5mm Being directly disposed as of commutator 26 is more than 28mm, may be such that commutator 26 can possess bigger outer perimeter, and then can guarantee that wherein Commutator segment 262 can possess sufficiently large size reversing groove is set, be more than or equal to 0.5mm to accommodate diameter in reversing groove Winding 22, but the diameter of commutator 26 is set smaller than 45mm, is preferably provided with 36mm, avoids the straight of commutator 26 When footpath is arranged to excessive so that the linear velocity when commutator 26 rotates on its periphery is excessive, can cause commutator segment 262 at a high speed Centrifugal force caused by rotation throws away commutator segment 262, the problem of causing film flying, ensure that the security performance of product.

As shown in figure 3, in one embodiment provided by the utility model, it is preferable that in commutator segment 262 close to rotor core 24 one end is provided with outstanding boss 266, and line embedding groove 264 is opened on boss 266, and length of line embedding groove 264 etc. In the length of boss 266 so that line embedding groove 264 forms groove on the surface of boss 266.

In this embodiment, outstanding boss 266 is set in commutator segment 262 on one end of rotor core 24, Line embedding groove 264 is opened on boss 266, and causes the length of line embedding groove 264 and the equal length of boss 266, boss 266 Groove is formed in the axial direction of commutator 26, it is entered line embedding groove by the bottom surface of boss 266 when winding winding 22 In 264；On commutator segment 262 set boss 266, guarantee change on chip have enough spaces go set line embedding groove 264, and by The surface of commutator segment 262 is protruded from boss 266, when winding 22 is fixed, can be easy to be grasped in line embedding groove 264 Make.

In one embodiment provided by the utility model, it is preferable that winding is wrapped on rotor core, the coiling of winding Both ends are in line embedding groove.

In this embodiment, winding 22 is wound, afterwards by commutator segment on rotor core 24 first in winding 262 surfaces adjacent with rotor core 24 are entered in line embedding groove 264, and the both ends of the coiling of winding 22 are embedded in line embedding groove 264 It is interior, for example, same root coiling one end in line embedding groove 264, then the other end then in adjacent line embedding groove 264, I.e. same root coiling is embedded in 264 in same line embedding groove, and in the inside bending of line embedding groove 264 again to rotor core 24 Direction extends and is wound so that winding 22 changes method in the inside of line embedding groove 264, by winding 22 by commutator segment 262 Connected with rotor core 24.

In one embodiment provided by the utility model, it is preferable that insulating barrier, insulating barrier are arranged at intervals with winding 22 It is covered in the surface for the winding 22 being not embedded into line embedding groove 264.

In this embodiment, insulating barrier is provided with winding 22, prevents the various pieces for causing winding 22 in winding Conductive communication produces short circuit, and in the winding 22 being embedded into line embedding groove 264, due to be connected with commutator segment 262, therefore Insulating barrier can not be set herein, but for the ease of making, winding 22 can all make its surface cover one layer of winding 22 in production, and When winding 22 in by line embedding groove 264 is fixed, the insulating barrier in line embedding groove 264 is melted by high temperature so that around Group 22 is directly in contact with commutator segment 262.

As described in Fig. 4 and Fig. 5, in one embodiment provided by the utility model, it is preferable that the quantity of commutator segment 262 is Multiple, the connection of multiple commutator segments 262 forms annular, and has gap 268 between the adjacent commutator segment 262 of each two.

In this embodiment, the quantity of commutator segment 262 is arranged to multiple so that multiple commutator segments 262 are commutating successively Around setting on the periphery of device 26, and it is not in contact between adjacent two 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, and to protect The effect of insulation is demonstrate,proved, megohmite insulant can be provided with gap 268, commutator segment 262 is isolated.

In one embodiment provided by the utility model, it is preferable that commutator segment 262 and boss 266 are integral type structure.

In this embodiment, commutator segment 262 and boss 266 are preferably integral structure, because the mechanics of 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, reduce the processing cost of product.

In one embodiment provided by the utility model, it is preferable that commutator segment 262 is metal commutator segment 262；And/or around Group 22 is metal winding 22.

In this embodiment, commutator segment 262 is arranged to metal commutator segment 262, winding 22 is arranged 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 delivered in metal winding 22, then is delivered to by metal winding 22 on rotor core 24 and carries out rotation driving.

According to second purpose of the present utility model, the utility model provides a kind of food processor, has first party The permanent magnet DC motor that face any embodiment provides, therefore, the food processor that embodiment of the present utility model provides have the The whole beneficial 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 scheme, it is preferable that food processor includes wall-breaking machine, juice extractor, mixer, cooking machine It is or any in soy bean milk making machine.

In the description of this specification, term " multiple " then refers to two or more, is limited unless otherwise clear and definite, art The orientation or position relationship of the instructions such as language " on ", " under " are based on orientation shown in the drawings or position relationship, are for only for ease of Describe the utility model and simplify to describe, rather than instruction or imply signified device or element must have specific orientation, With specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model；Term " connection ", " installation ", " Gu It is fixed " etc. all should be interpreted broadly, for example, " connection " can be fixedly connected or be detachably connected, or integratedly connect Connect；Can be joined directly together, can also be indirectly connected by intermediary.For the ordinary skill in the art, may be used To understand concrete meaning of the above-mentioned term in the utility model as the case may be.

In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc. Mean that combining specific features, structure, material or feature that the embodiment or example describe is contained in of the present utility model at least one In individual embodiment or example.In this manual, identical embodiment is not necessarily referring to the schematic representation of above-mentioned term Or example.Moreover, specific features, structure, material or the feature of description can be in any one or more embodiments or example In combine in an appropriate manner.

Preferred embodiment of the present utility model is these are only, is not limited to the utility model, for this area Technical staff for, the utility model can have various modifications and variations.It is all within the spirit and principles of the utility model, Any modification, equivalent substitution and improvements made etc., should be included within the scope of protection of the utility model.

Claims (10)

1. a kind of permanent magnet DC motor, for food processor, the permanent magnet DC motor includes field frame assembly and rotor assembly, Characterized in that,

The rotor assembly includes winding, rotor core and commutator；

The commutator includes at least one commutator segment, and the commutator segment is arranged on the periphery of the commutator, changed described Line embedding groove is offered to the surface of piece, the winding is wound in the line embedding groove by the rotor core；Wherein, the winding The diameter of line footpath be more than or equal to 0.5mm.

2. permanent magnet DC motor according to claim 1, it is characterised in that

The diameter of the commutator is more than 28mm and is less than 45mm.

3. permanent magnet DC motor according to claim 1, it is characterised in that

Outstanding boss is provided with close to one end of the rotor core in the commutator segment, the line embedding groove is opened in institute State 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 groove.

4. permanent magnet DC motor according to claim 1, it is characterised in that

The winding is wrapped on the rotor core, and the both ends of the coiling of the winding are in the line embedding groove.

5. permanent magnet DC motor according to claim 1, it is characterised in that

Insulating barrier is arranged at intervals with the winding, the insulating barrier is covered in the winding being not embedded into the line embedding groove Surface.

6. permanent magnet DC motor according to claim 1, it is characterised in that

The quantity of the commutator segment is multiple, and multiple commutator segments connect to form annular, and the commutation that each two is adjacent There is gap between piece.

7. permanent magnet DC motor according to claim 3, it is characterised in that

The commutator segment and the boss are integral type structure.

8. permanent magnet DC motor according to any one of claim 1 to 7, it is characterised in that

The commutator segment is metal commutator segment；And/or

The winding is metal winding.

9. a kind of food processor, it is characterised in that the food processor is included as any one of claim 1 to 8 Permanent magnet DC motor.

10. food processor according to claim 9, it is characterised in that the food processor is wall-breaking machine, squeezed the juice It is any in machine, cooking machine, soy bean milk making machine or mixer.