CN207939431U - Food cooking machine and its electrification cue circuit - Google Patents

Abstract

The utility model discloses a kind of food cooking machine and its electrification cue circuit, the food cooking machine includes that cooking container, driving motor and the Food processing part for being handled food, the electrification cue circuit include：The input terminal of rectifier bridge, rectifier bridge is connected with AC power, and AC power is converted to DC power supply by rectifier bridge, to supply driving motor；Electrolytic capacitor, the positive terminal of electrolytic capacitor are connected with the first output end of rectifier bridge, and the negative pole end of electrolytic capacitor is grounded after being connected with the second output terminal of rectifier bridge, and electrolytic capacitor is to DC power supply progress voltage stabilizing；Prompt unit, prompt unit are connected in parallel with electrolytic capacitor, wherein electrolytic capacitor is powered when food cooking machine is powered off to prompt unit, to send out the prompt message that food cooking machine currently charges by prompt unit.Thereby, it is possible to after food cooking machine powers off, prompt whether user's food cooking machine currently charges, reminds the user that and avoid carrying out some risky operation.

Description

Food cooking machine and its electrification cue circuit

Technical field

The utility model is related to household electrical appliance technical field, more particularly to the electrification cue circuit of a kind of food cooking machine and A kind of food cooking machine with the electrification cue circuit.

Background technology

Wall-breaking machine is commonly used in life, and with the promotion of living condition, requirement of the people to wall-breaking machine is also improving.

In the related technology, wall-breaking machine not only may be implemented just using DC brushless motor instead of pervious series excited machine Reversion, and have many advantages, such as noise it is small, without carbon dust.But the circuit of DC brushless motor is more complicated, needs capacity very Big capacitive energy storage is to control operating, however when the bulky capacitor in wall-breaking machine is fully charged, if power cut-off, this is big at this time Capacitance can store much electricity.It does over again, repair if to the wall-breaking machine produce when the bulky capacitor does not discharge electricity completely Or tear the operations such as machine open, then it can be than relatively hazardous, the electric energy stored in the bulky capacitor is easy to damage human body.

Utility model content

The utility model is intended to solve one of the technical problem in above-mentioned technology at least to a certain extent.For this purpose, this reality It is to propose a kind of electrification cue circuit of food cooking machine with first novel purpose, can be powered off in food cooking machine Afterwards, whether prompt user's food cooking machine currently charges, and reminds the user that and avoids carrying out some risky operation.

Second purpose of the utility model is to propose a kind of food cooking machine.

In order to achieve the above objectives, the utility model first aspect proposes a kind of electrification cue circuit of food cooking machine, The food cooking machine includes cooking container, driving motor and the Food processing part for being handled food, the cooking The food accommodating chamber for holding food is formed in container, the Food processing part stretches into the food accommodating chamber and in institute It states and is rotated relative to the cooking container under the drive of driving motor, the electrification cue circuit includes：Rectifier bridge, the rectification The input terminal of bridge is connected with AC power, and the AC power is converted to DC power supply by the rectifier bridge, to supply the drive Dynamic motor；Electrolytic capacitor, the positive terminal of the electrolytic capacitor are connected with the first output end of the rectifier bridge, the electrolytic capacitor Negative pole end be connected with the second output terminal of the rectifier bridge after be grounded, the electrolytic capacitor to the DC power supply carry out Voltage stabilizing；Prompt unit, the prompt unit are connected in parallel with the electrolytic capacitor, wherein the electrolytic capacitor is in the food It powers to the prompt unit when cooking machine powers off, to send out what the food cooking machine currently charged by the prompt unit Prompt message.

The electrification cue circuit of food cooking machine according to the present utility model is converted to AC power directly by rectifier bridge Galvanic electricity source to supply driving motor, and carries out voltage stabilizing, so that electrolytic capacitor is in food cooking by electrolytic capacitor to DC power supply It powers to prompt unit when machine powers off, to send out the prompt message that food cooking machine currently charges by prompt unit.As a result, can It is enough to prompt whether user's food cooking machine currently charges after food cooking machine power-off, it reminds the user that and avoids carrying out Risky operation.

In addition, can also be had according to the electrification cue circuit of the utility model food cooking machine set forth above following attached The technical characteristic added：

Specifically, the driving motor includes：Stator core, the stator core include the stator yoke and multiple of annular The width of stator teeth, the stator yoke is W, and multiple stator teeths are set to the inner peripheral surface of the stator yoke, adjacent Stator tooth socket is formed between two stator teeths, multiple stator teeths limit coaxial with the stator yoke Stator hole, each stator teeth include the stator teeth main body being connected with the stator yoke and are located at the stator teeth The width of the stator tooth boots of the inner end of main body, each stator teeth main body is V, wherein W：V=0.6-0.7；Rotor iron Core, the rotor core are rotatably arranged in the stator hole and coaxial with the stator hole.

Specifically, the driving motor includes：Stator core, the stator core include the stator yoke of annular and are set to Multiple stator teeths of the inner peripheral surface of the stator yoke are formed with stator tooth socket between the two neighboring stator teeth, more A stator teeth limits the stator hole coaxial with the stator yoke, and the maximum radial dimension of the stator yoke is D； Rotor core, the rotor core is rotatably arranged in the stator hole and, the rotor core coaxial with the stator hole Maximum radial dimension be d, wherein D and d meet：0.4≤d/D≤0.55.

Specifically, the prompt unit includes the current limiting component that warning light and the warning light are connected in series with.

Specifically, the current limiting component includes multiple current-limiting resistances being connected in series with.

Specifically, the warning light is LED light.

Specifically, when the current-limiting resistance is three, the positive terminal of one end of the first current-limiting resistance and the electrolytic capacitor It is connected, one end of second current-limiting resistance is connected with the other end of first current-limiting resistance, the third current-limiting resistance One end is connected with the other end of second current-limiting resistance, the anode of the other end and the LED light of the third current-limiting resistance It is connected, the cathode of the LED light is grounded after being connected with the negative pole end of the electrolytic capacitor.

Specifically, the driving motor is DC brushless motor.

Specifically, the capacitance of the electrolytic capacitor is 400uf-1000uf.

Specifically, the food cooking machine is blender, wall-breaking machine, Normal juice machine or juice extractor.

To achieve the goals above, a kind of food cooking machine of the utility model second aspect proposition includes：This practicality is new The electrification cue circuit of the food cooking machine of type first aspect.

The food cooking machine of the utility model can be in food material by the electrification cue circuit of above-mentioned food cooking machine It after the power-off of reason machine, prompts whether user's food cooking machine currently charges, reminds the user that and avoid carrying out some risky operation.

The advantages of the utility model additional aspect, will be set forth in part in the description, partly will be from following description In become apparent, or recognized by the practice of the utility model.

Description of the drawings

Fig. 1 is the structural schematic diagram according to the food cooking machine of the utility model one embodiment；

Fig. 2 is the assembly signal according to the stator core and rotor core of the driving motor of the utility model one embodiment Figure；

Fig. 3 is the structural schematic diagram according to the rotor core of the driving motor of the utility model one embodiment；

Fig. 4 is the structural schematic diagram according to the rotor core of the driving motor of the utility model another embodiment；And

Fig. 5 is according to the food cooking machine of the food cooking machine of the utility model embodiment and its showing for electrification cue circuit It is intended to.

Specific implementation mode

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model Limitation.

Below in conjunction with the accompanying drawings come describe the utility model embodiment food cooking machine electrification cue circuit and with should Charge the food cooking machine of cue circuit.

In the embodiments of the present invention, food cooking machine may include arranging container, driving motor and for food The Food processing part handled, arranges the food accommodating chamber being formed in container for holding food, and Food processing part stretches into It is rotated in food accommodating chamber and relative to cooking container under the drive of driving motor.

As shown in Figure 1, the food cooking machine 200 of the utility model embodiment may include：At cooking container 210, food Manage part (not shown in figure 1) and the driving motor 100 for food cooking machine 200, wherein driving motor 100 can be direct current without Brush motor, power P 500W-2000W, brshless DC motor commutate without carbon brush, therefore showing there is no carbon brush abrasion As the noise of driving motor 100 is lower, and the service life is longer for driving motor 100.

Specifically, could be formed with the food accommodating chamber for holding food in cooking container 210, Food processing part can To be sequentially connected with driving motor 100, and Food processing part can stretch into food accommodating chamber.Food processing part can as a result, To be rotated relative to cooking container 210 under the drive of driving motor 100, and then the food in food accommodating chamber can be carried out Processing.

Further, food cooking machine 200 can also include engine base 220, and cooking container 210 can be cup body component, cup Body component is detachably arranged at engine base 220, in order to pick and place food and cleaned to cup body component.Driving motor 100 can be with It is installed on engine base 220, Food processing part can be the knife assembly being connected with cup body component, when cup body component is set to engine base 220, Driving motor 100 can be sequentially connected with knife assembly, and driving motor 100 can drive knife assembly relative to cup body component as a result, Rotation, so that knife assembly can carry out food the processing such as to cut.

Shown in Fig. 1, food cooking machine 200 can also include：Electric-control system 230 and display module 240.Its In, electric-control system 230 includes electric-controlled plate, and electric-controlled plate can be installed on engine base 220, and electric-controlled plate can be with driving motor 100 Electrical connection is to control the work of driving motor 100.

Display module 240 can also be installed on engine base 220, and display module 240 can be connected with electric-control system 230. Display module 240 is displayed for the working condition of food processor 200, and in the further implementation of the utility model In example, there can be operation button on display module 240, user can control electric-control system 230 by operation button, and then control The operating mode of food processor 200 processed and state etc., it is more convenient to use.

Referring to Fig.1 shown in-Fig. 4, according to the driving motor for food cooking machine 200 of the utility model one embodiment 100 may include stator core 10, wherein stator core 10 may include：Stator yoke 11 and stator teeth 12.

Specifically, stator teeth 12 can be multiple, stator yoke 11 can be annular, and multiple stator teeths 12 can be with Inner peripheral surface set on annular stator yoke portion 11, and multiple stator teeths 12 can limit the stator coaxial with stator yoke 11 Hole 102.Stator yoke 11 can be that multiple stator teeths 12 provide mechanical support, and 12 position of stator teeth is made to fix.It is multiple fixed Sub- teeth portion 12 can could be formed with stator between the circumferentially spaced distribution of stator yoke 11, two neighboring stator teeth 12 Tooth socket 101, winding 14 can be wrapped in stator teeth 12 by stator tooth socket 101.

It should be noted that in the present invention, the quantity of stator teeth 12 can need flexibly according to actual conditions It is arranged, stator teeth 12 is six purposes for being given for example only explanation in Fig. 2, in other embodiments of the utility model, Stator teeth 12 or two, four or more, this is within the protection scope of the utility model.

In the related art, the yoke of motor (for example, driving motor 100) stator is wide and the wide ratio of teeth portion is not fixed Value, usual ratio is mostly 0.4-0.6, and stator yoke is made to undertake the iron loss of greater proportion, to reduce the fever Wen Sheng of stator teeth, But stator yoke temperature can be brought to rise excessively high problem.If solving above-mentioned ask by the shell that jacketed one magnetically permeable on motor Topic, the magnetic flux density of stator yoke can be reduced to a certain extent, reduce the iron loss of stator yoke, but can increase material and Process costs.

And in the present invention, with reference to shown in Fig. 2, each stator teeth 12 may include：121 He of stator teeth main body Stator tooth boots 122.Wherein, stator teeth main body 121 is connected with stator yoke 11, makes stator teeth 12 and stator yoke 11 can be with It is connected as one.Stator tooth boots 122 are located at the inner end of stator teeth main body 121, can reduce stator teeth 12 and rotor core Air-gap reluctance between 20 improves Distribution of Magnetic Field.On the other hand the winding 14 that can be located at opposing connection on stator teeth 12 is fixed, Prevent winding 14 from being loosened by the inner end of stator teeth 12, winding 14 is fixed relatively reliable.

In addition, the width of stator yoke 11 is W, the width of each stator teeth main body 121 is V.For etc. shapes determine Sub- iron core 10, i.e. mono- timings of maximum radial dimension D of stator core 10, if W：V is too small, and the magnetic flux of stator teeth 12 can be caused close Height is spent, or even flux density saturation occurs, in 10 course of work of stator core, the iron loss of stator teeth 12 is larger, stator The temperature of teeth portion 12 rises excessively high.And the stator tooth socket 101 between two neighboring stator teeth 12 is too small, two neighboring stator teeth 12 apart from too short, is easy to form electromagnetic circuit, and then reduce the efficiency of stator core 10 (that is, driving motor 100).

If W：V is excessive, the magnetic flux density of stator yoke 11 can be caused excessively high, or even flux density saturation occur, in stator In 10 course of work of iron core, the iron loss of stator yoke 11 is larger and temperature occurs and rises excessively high phenomenon.

Therefore, in some embodiments of the utility model, the width W of stator yoke 11 and each stator teeth main body 121 width V can meet W：V=0.6-0.7, stator yoke 11 and stator teeth 12 can more reasonably distribute stator core 10 magnetic flux density prevents 10 local temperature rise's higher of stator core, keeps the Wen Sheng of stator core 10 more balanced, to improve stator 10 service life of iron core and security performance.For example, in some specific embodiments of the utility model, the width of stator yoke 11 The ratio W of W and the width V of stator teeth main body 121：V can be respectively 0.6,0.62,0.65,0.68 and 0.7 etc..

It should be noted that in the present invention, the width W of stator yoke 11 can be understood as the stator yoke of annular The width V of the distance between 11 inner peripheral surface and peripheral surface, stator teeth main body 121 can be understood as stator teeth main body 121 Two side the distance between circumferential along stator yoke 11.

In addition, the distance between the inner peripheral surface and peripheral surface of the stator yoke 11 of annular can be identical everywhere, and certainly, annular Stator yoke 11 inner peripheral surface and the distance between peripheral surface can also be not exactly the same, annular stator yoke 11 The distance between inner peripheral surface and peripheral surface can it is identical everywhere can not also be identical.But in the present invention, stator The width W of any position in yoke portion 11 and the width V of any position of stator teeth main body 121 meet W：V=0.6- 0.7。

According to the width W and stator teeth main body 121 of the stator yoke 11 of the stator core 10 of the utility model embodiment Width V meet W：V=0.6-0.7, magnetic flux density distribution it is more reasonable, Wen Sheng is more balanced, be conducive to improve service life and Safety.

Further to make the Wen Shenggeng of stator core 10 low, according to the utility model further embodiment, stator yoke 11 width W and the width V of stator teeth main body 121 can further meet：W：V=0.64-0.66.

Some embodiments according to the present utility model, as shown in Fig. 2, the width of stator yoke 11 can be equal everywhere, often The width of a stator teeth main body 121 can be equal everywhere, and in order to the mold design of 10 forming process of stator core, technique is more Add simple.

Further, with continued reference to shown in Fig. 2, stator yoke 11 can be Internal periphery and outer profile is circular annulus The structure of shape, stator yoke 11 is simple and convenient for molding.

In addition, the width bisector of each stator teeth main body 121 can pass through the center of stator hole 102, that is to say, that Each 121 radially extending along stator hole 102 of stator teeth main body is conducive to keep Distribution of Magnetic Field more symmetrical uniformly.

Further, with reference to shown in Fig. 2, in the circumferential direction of stator yoke 11, the both ends of stator tooth boots 122 can prolong respectively It stretches and exceeds stator teeth main body 121, the abutting end of two neighboring stator tooth boots 122 is spaced apart or connected.Thus, it is possible to opposing connection The winding 14 for being located at stator teeth 12 is fixed, and prevents winding 14 from being loosened by the inner end of stator teeth 12, and winding 14 is fixed more Add reliable.

Can also include multiple positioning protrusion 13, multiple positioning protrusion according to the stator core 10 of the utility model embodiment 13 can be along the circumferentially-spaced peripheral surface for being opened in stator yoke 11 of stator yoke 11, and each positioning protrusion 13 can edge Stator yoke 11 radially extends.As a result, when driving motor 100 is assembled, stator core 10 can pass through positioning protrusion 13 are positioned with the holder of driving motor 100, and driving motor 100 is made to assemble simpler convenience and accurate positioning.

It should be noted that the utility model the quantity of positioning protrusion 13 and installation position are not done it is specifically limited, for example, In specific embodiment as shown in Figure 2, the quantity of positioning protrusion 13 is equal with the quantity of stator teeth 12, and positioning protrusion 13 are arranged the peripheral surface in stator yoke 11 correspondingly with 12 position of stator teeth, are convenient for the mold design of stator core 10 And molding.In some unshowned embodiments of the utility model, the quantity of positioning protrusion 13 and position can also be with stators Teeth portion 12 does not correspond, it is only necessary to meet positioning protrusion 13 and be spaced apart the peripheral surface set on stator yoke 11 to realize to stator The requirement that iron core 10 positions.

Referring to Fig.1 shown in-Fig. 4, according to the driving electricity for food cooking machine 200 of another embodiment of the utility model Machine 100 may include：Stator core 10 and rotor core 20.

Specifically, stator core 10 may include stator yoke 11 and multiple stator teeths 12, wherein stator yoke 11 For annular, multiple stator teeths 12 can be set to the inner peripheral surface in annular stator yoke portion 11, and stator yoke 11 can be multiple stators Teeth portion 12 provides mechanical support, and 12 position of stator teeth is made to fix.Multiple stator teeths 12 can be along the circumferential direction of stator yoke 11 It is spaced apart distribution, could be formed with stator tooth socket 101 between two neighboring stator teeth 12,100 winding of driving motor can be through It crosses stator tooth socket 101 and is wrapped in stator teeth 12.

In addition, multiple stator teeths 12 can limit the stator hole 102 coaxial with stator yoke 11, rotor core 20 can To be located in stator hole 102, and rotor core 20 can be coaxial with stator hole 102.Rotor core 20 can in stator hole 102 To be rotated about axis, and rotor core 20 can be spaced apart preset distance between the inner peripheral surface of stator hole 102, so as to turn The rotation of sub- iron core 20 is more smooth.

As a result, after 14 circulating current of winding of driving motor 100, multiple stator teeths 12 can be made to form multipair magnetic pole, it is fixed Magnetic field is generated in sub-aperture 102, the rotor core 20 in stator hole 102 can be rotated about axis under the influence of a magnetic field, with Realize the conversion and output of electric energy.

In the related art, the root diameter of motor (for example, driving motor 100) is not fixed with stator diameter ratio Value, usually mostly 0.60-0.75, within this range, although motor can export larger torque, the high speed performance of motor It is poor, and the cogging torque of motor increases, and motor easy tos produce vibration and larger noise.If by drive control electricity Increase weak magnetic effect in the algorithm on road to solve the above problems, then can reduce the efficiency of motor.

And in the present invention, the maximum radial dimension D of the stator yoke 11 and maximum radial dimension d of rotor core 20 Meet 0.4≤d/D≤0.55.For example, in some specific embodiments of the utility model, the maximum radial ruler of stator yoke 11 The ratio d/D of very little D and the maximum radial dimension d of rotor core 20 can be respectively 0.45,0.48,0.51 and 0.54 etc..

In the case that the maximum radial dimension D of stator yoke 11 is certain, as d/D ＜ 0.4, the maximum diameter of rotor core 20 It is too small to size d, if 100 low speed of driving motor is run, for example, the rotating speed ＜ 5000rpm of driving motor 100, rotor core 20 load capacity is too small, drives under the operating mode loaded on an equal basis, rotor core 20 too small maximum radial dimension d can seriously be sent out Heat influences the normal operation of driving motor 100, reduces by 100 efficiency of driving motor, in some instances it may even be possible to be damaged.

In the case that the maximum radial dimension D of stator yoke 11 is certain, as d/D ＞ 0.55, driving motor 100 can be caused Cogging torque become larger, the rotary inertia of rotor core 20 becomes larger, if 100 high-speed cruising of driving motor, for example, driving motor When 100 rotating speed ＞ 10000rpm, driving motor 100 will produce vibration, and then generate larger noise, influence driving motor The use feeling of 100 performances and user.

Therefore, the maximum radial dimension d of the maximum radial dimension D Yu rotor core 20 of stator yoke 11 meet 0.4≤d/D ≤ 0.55, the power output of the rotor core 20 of driving motor 100 can be improved, driving motor 100 is more efficient, prevents rotor iron Core 20 generate heat, it is safer, and the maximum radial dimension d of rotor core 20 can be done it is small, when eliminating high-speed rotation turn The inertia that sub- iron core 20 generates, prevents driving motor 100 from generating larger vibrating noise.

In addition, it is necessary to explanation, in some embodiments of the utility model, stator core 10 and rotor core 20 Outer profile is circle, then maximum radial dimension refers to the diameter of the rounded outer profiles of stator core 10 and rotor core 20.And at this In other embodiments of utility model, the outer profile of stator core 10 and rotor core 20 is not circle, then maximum radial ruler The size of the maximum position of radial dimension for crossing axis of the very little outer profile that can be understood as stator core 10 and rotor core 20.

Most according to the stator yoke 11 of the driving motor 100 for food processor 200 of the utility model embodiment Big radial direction dimension D and the maximum radial dimension d of rotor core 20 meet 0.4≤d/D≤0.55, efficiently solve driving motor 100 low speed power output is small and the big problem of vibration at high speed noise, improves the efficiency and security performance of driving motor 100.

To further increase the low speed power output of driving motor 100 and reducing the high speed noise of driving motor 100, according to this Utility model further embodiment, the maximum radial dimension D of the stator yoke 11 and maximum radial dimension d of rotor core 20 can Further to meet：0.5≤d/D≤0.55.

Some embodiments according to the present utility model can be equipped with multiple magnets as shown in figs 2-4 in rotor core 20 Slot 23, multiple magnet slots 23 can be along the circumferentially spaced setting of rotor core 20, and the both ends of magnet slot 23 can be distinguished The axial both ends of rotor core 20 are extended to, multiple permanent magnets 25 can be correspondingly plugged in multiple magnet slots 23.

Permanent magnet 25 can extend to the axial both ends of rotor core 20, the position of permanent magnet 25 in magnet slot 23 as a result, It is reliable to set fixation, permanent magnet 25 can be effectively prevent to loosen.And multiple permanent magnets 25 can form multipair magnetic pole, with production Magnetisation field, and then induced electromotive force is generated, realize the conversion of electric energy.Rotor core 20 using permanent magnet 25 is without being arranged excitation Coil not only improves the weight for mitigating driving motor 100, reduces the volume of driving motor 100, and is not necessarily to start on startup Excitation, startup is more quick, more energy saving.

It should be noted that the utility model the quantity of magnet slot 23 and permanent magnet 25 is not done it is specifically limited, it is only necessary to Meet multiple permanent magnets 25 to be plugged in correspondingly in multiple magnet slots 23 to realize the fixation of permanent magnet 25 and be formed multiple The requirement of magnetic pole.For example, in specific embodiment as shown in Figure 3 and Figure 4, magnet slot 23 and permanent magnet 25 are respectively four A, four permanent magnets 25 are plugged in respectively in four magnet slots 23.For another example in other embodiments of the utility model, Magnet slot 23 and permanent magnet 25 can also be respectively two, six, eight or more, this is all in the protection of the utility model Within the scope of.

In addition, each at least one end of magnet slot 23 in the circumferential direction of rotor core 20 can be equipped with locating slot 24, permanent magnetism Locating slot 24 can be inserted while being inserted into magnet slot 23 in body 25, and locating slot 24 can further limit the position of permanent magnet 25 It sets, so that 25 position of permanent magnet is fixed more accurate secured.

Further, as shown in Figure 3 and Figure 4, the straight line at both ends of each magnet slot 23 in the circumferential direction of rotor core 20 Distance is b, and the maximum radial distance of the peripheral surface of the centre distance rotor core 20 of rotor core 20 is R, and b and R meets b:R=0.95-1.0.

Work as b:When R ＜ 0.95, the length of permanent magnet 25 is too short in magnet slot 23, reduces the utilization rate of rotor core 20, from And reduce the efficiency of driving motor 100；Work as b:When R ＞ 1, the leakage field of rotor core 20 is will increase, can also reduce driving motor 100 efficiency.Therefore, in some embodiments of the utility model, b:When R=0.95-1.0, for example, in the utility model In some specific embodiments, b:R can be respectively 0.95,0.96,0.97,0.98,0.99 and 1.0 etc., and driving has been effectively ensured The efficiency of motor 100.

Some embodiments according to the present utility model, as shown in Figure 3 and Figure 4, the periphery of magnet slot 23 and rotor core 20 The minimum range in face is a1, and the minimum range of the peripheral surface of stator slot 24 and rotor core 20 is a2, permanent magnet 25 and rotor iron The minimum range of the peripheral surface of core 20 can be understood as one smaller value in a1 and a2, i.e. min (a1, a2).Min (a1, A2 when) too small, the mechanical strength of rotor core 20 can be made to reduce, to reduce the reliability of rotor core 20；And min (a1, A2 when) excessive, the leakage field of rotor core 20 can be increased, thereby reduce the efficiency of driving motor 100.

Therefore, in some embodiments of the utility model, min (a1, a2)=0.8mm-1.8mm, while ensure that and turn The mechanical strength and efficiency of sub- iron core 20.For example, in some specific embodiments of the utility model, min (a1, a2) can divide It Wei not 0.8mm, 1.0mm, 1.2mm, 1.4mm, 1.6mm and 1.8mm etc..

In addition, the utility model the shape of magnet slot 23 is not done it is specifically limited, it is only necessary to meet the length of magnet slot 23 The bisector in direction makes the Distribution of Magnetic Field that permanent magnet 25 generates in magnet slot 23 by the requirement at the center of rotor core 20 More uniformly.For example, in example as shown in Figure 3, magnet slot 23 is the straight-line groove of strip, and straight-line groove is along rotor core 20 String direction extend, the distance b at the both ends of straight-line groove is the development length of straight-line groove.In example as shown in Figure 4, magnetic Body slot 23 is the arc groove of strip, and for arc groove along the circumferentially extending of rotor core 20, the distance b at the both ends of arc groove is arc The chord length of shape slot.

In some implementations of the utility model, as shown in Fig. 2, the outer profile of the radial section of stator yoke 11 can be big Body is circle, and 11 structure of stator yoke is more stablized, and being connected and fixed convenient for stator yoke 11 and stator teeth 12.

Some embodiments according to the present utility model, as shown in Fig. 2, each stator tooth socket 101 can respectively with stator hole 102 connections carry out coiling in order to the winding 14 of stator core 10 by the opening of stator tooth socket 101 being connected to stator hole 102, Coiling is convenient and efficient.

In some embodiments of the utility model, as shown in Figure 3 and Figure 4, the outer periphery of rotor core 20 can be formed Have multiple pole teeth 21, multiple pole teeth 21 along the circumferentially distributed of rotor core 20 and can outwardly protrude, two neighboring pole tooth 21 it Between be formed with tooth socket 22, also, in the embodiment with multiple magnet slots 23, magnet slot 23 can be corresponded with pole tooth 21 Setting.At this point, rotor core 20 is formed as salient-pole structure rotor, and compared with the rotor of wholecircle shape in the related technology, salient pole Construction rotor can prevent the leakage field and slot effect of rotor interpolar, to improve the efficiency of rotor core 20.

In addition, it is necessary to explanation, for the rotor core 20 with multiple pole teeth 21, the maximum outside diameter of rotor core 20 Size d refers to the connection line size of the tooth top for two pole teeth 21 that the line of tooth top crosses the axis of rotor core 20.

Further, with continued reference to shown in Fig. 3 and Fig. 4, the normal profile of pole tooth 21 can be formed as arc-shaped, rotor iron The outer periphery of the shaft section of core 20 can be formed by multiple arc-shaped are sequentially connected, and two neighboring arc-shaped junction is formed with Tooth socket 22.

In addition, as shown in Figure 3 and Figure 4, using the center of rotor core 20 circle tangent as the center of circle and with the tooth top of pole tooth 21 Radius be R (at this point, R=0.5d), it is tangent with the slot bottom of tooth socket 22 and using the center of rotor core 20 as the half of the circle in the center of circle Diameter is r.If r:R ＜ 0.96 can lead to the too short along the circumferential development length of rotor core 20 of pole tooth 21, reduce driving motor 100 performance；If r:R ＞ 0.98 can cause tooth socket 22 too small, when driving motor 100 is run, cannot effectively reduce tooth socket phase The noise jamming answered and generated.Therefore, in some embodiments of the utility model, r:R=0.96-0.98, for example, in this reality With in some novel specific embodiments, r:R can be respectively 0.96,0.97 and 0.98 etc., effectively reduce slot effect, together When ensure that the efficiency of driving motor 100.

Can be variable-frequency motor, root according to the driving motor 100 for food cooking machine 200 of the utility model embodiment According to the difference of food species to be processed needed for food cooking machine 200, variable-frequency motor can provide different rotating speeds, torque and Time etc. makes to have the food cooking machine 200 of driving motor 100 intelligent.In addition, variable-frequency motor is carried out without structures such as carbon brush Carbon brush abrasion is not present in commutation, and operation noise is lower, is conducive to the service life for improving food cooking machine 200 and improves user Use feeling, in some embodiments of the utility model, driving motor 100 can be frequency control brush DC electricity Machine.

Optionally, in the embodiments of the present invention, food cooking machine 200 can be blender, wall-breaking machine, Normal juice Machine, juice extractor or soy bean milk making machine etc..Wall-breaking machine rotating speed is high, can be used for handling harder food, and can will be deposited in food The a large amount of plants element fully broken wall release being at pericarp, fruit stone and rhizome；Normal juice machine rotating speed is relatively low, is squeezed by push type Pressure, the mode of less flexible extraction handle food；Juice extractor rotating speed is higher, and being pulverized and mixed for a greater variety of foods may be implemented； Soy bean milk making machine rotating speed is higher, and the functions such as preheating, mashing, mashing off and delay infusion process full-automation may be implemented.According to this practicality The driving motor 100 of new embodiment can be applied to a greater variety of food cooking machines 200, meet more use demands, real It is stronger with property.

It should be noted that above-described embodiment is only as a specific embodiment of the utility model.

Fig. 5 is according to the food cooking machine of the food cooking machine of the utility model embodiment and its showing for electrification cue circuit It is intended to.

As shown in figure 5, the electrification cue circuit of the food cooking machine of the utility model embodiment includes：Rectifier bridge 1000, Electrolytic capacitor 2000 and prompt unit 3000.

Wherein, the input terminal of rectifier bridge 1000 is connected with AC power, and AC power is converted to direct current by rectifier bridge 1000 Power supply, to supply driving motor 100.The positive terminal of electrolytic capacitor 2000 is connected with the first output end of rectifier bridge 1000, electrolysis The negative pole end of capacitance 2000 is grounded after being connected with the second output terminal of rectifier bridge 1000, and electrolytic capacitor 1000 is to DC power supply Carry out voltage stabilizing, wherein the capacitance of electrolytic capacitor 2000 can be demarcated according to actual conditions, for example, electrolytic capacitor 2000 capacitance Can be 400uf-1000uf.

For example, the electric main as 220V accesses the utility model by voltage incoming end AC_L and AC_N shown in fig. 5 Electrification cue circuit when, the electric main of 220V can be converted to the direct current of 310V by rectifier bridge 1000, then electrolytic capacitor 2000 can carry out voltage stabilizing to the direct current of 310V, i.e. the direct current of 310V charges to electrolytic capacitor 2000, until electrolysis electricity The voltage for holding 2000 reaches 310V, to achieve the purpose that voltage stabilizing.It, can be directly from electrolysis electricity when driving motor 100 is started to work Extracting energy (that is, electricity) is operated in holding 2000.

It should be noted that when electrolytic capacitor 2000 is fully charged, if power cut-off is (that is, above-mentioned voltage incoming end Disconnect the connection with the electric main of 220V), electrolytic capacitor 2000 can store a large amount of electricity at this time.In addition, according to electrolysis electricity Hold 2000 energy storage formula E=0.5CU²It is found that the capacitance of electrolytic capacitor 2000 is bigger, the energy storage of electrolytic capacitor 2000 is more, Its speed discharged also can be slow, wherein the capacitance that E is the energy storage value of electrolytic capacitor 2000, C is electrolytic capacitor 2000, U are The voltage of electrolytic capacitor 2000.It therefore, may if user immediately carries out food cooking machine after power cut-off to tear machine operation open The risk of electric shock is had, and is easy to damage human body.

Prompt unit 3000 is connected in parallel with electrolytic capacitor 2000, wherein electrolytic capacitor 2000 is disconnected in food cooking machine 200 It powers to prompt unit 3000 when electric, to send out the prompt message that food cooking machine 200 currently charges by prompt unit 3000.

Further, as shown in figure 5, the limit that prompt unit 3000 may include warning light 3100, is connected in series with warning light Flow component 3200.Wherein, warning light 3100 can be LED light, and current limiting component 3200 may include multiple current-limiting resistances being connected in series with, When current-limiting resistance 3100 is three, one end of the first current-limiting resistance R1 is connected with the positive terminal of electrolytic capacitor 2000, the second limit One end of leakage resistance R2 is connected with the other end of the first current-limiting resistance R1, one end and the second current-limiting resistance of third current-limiting resistance R3 The other end of R2 is connected, and the other end of third current-limiting resistance R3 is connected with the anode of LED light (warning light 3100), the moon of LED light Pole is grounded after being connected with the negative pole end of electrolytic capacitor.Wherein, the resistance value of current-limiting resistance can be demarcated according to actual conditions.

Specifically, as shown in figure 5, during food cooking machine 200 works on power, electrolytic capacitor 2000 is to drive During dynamic motor 100 is powered, can also prompt unit 3000 be given to power, at this time the warning light 3,100 1 in prompt unit 3000 Directly it is in lighting lamp state.When food cooking machine 200 powers off, the electricity stored in electrolytic capacitor 2000 still will continue to as driving electricity Machine 100 and prompt unit 3000 are powered, it should be noted that electrolytic capacitor 2000 can carry out slowly after the power-off of object cooking machine 200 Electric discharge, the voltage of electrolytic capacitor 2000 constantly reducing, and will be unable to the operating for providing enough voltage driving motors 100, I.e. when food cooking machine 200 powers off, driving motor 100 can be stopped into dormant state (food cooking machine 200 quickly It is stopped), and not in consumption electric energy.

However, the electric energy of warning light 3100 in prompt unit 3000 is supplied to only to need the specified electricity for meeting warning light 3100 Stream, warning light 3100 will work, i.e. bright light.

Furthermore, it is supplied to the electric current I=U1/ (R01+R02+R03) of warning light 3100 in prompt unit 3000, In, R01 can be the resistance value of the first current-limiting resistance R1, and R02 can be the resistance value of the second current-limiting resistance R2, and R03 can be third current limliting electricity Hinder the resistance value of R3, U1=U-U2, wherein U is the voltage of electrolytic capacitor 2000, and U2 is the voltage of warning light 3100 (that is, specified electricity Pressure).

In addition, warning light 3100 works, required electric current is very small, when above-mentioned electric current I is less than the volume of warning light 3100 When constant current, warning light 3100 will extinguish, and illustrate that the electric energy stored in electrolytic capacitor 2000 at this time is very small close to zero, The personal safety of user can not be threatened, i.e., food cooking machine can be carried out at this time tearing machine operation open.

To sum up, it according to the electrification cue circuit of the food cooking machine of the utility model embodiment, will be exchanged by rectifier bridge Power supply is converted to DC power supply, to supply driving motor, and voltage stabilizing is carried out to DC power supply by electrolytic capacitor, so that electrolysis electricity Hold and power to prompt unit when food cooking machine is powered off, to send out the prompt that food cooking machine currently charges by prompt unit Information.Thereby, it is possible to after food cooking machine powers off, prompt whether user's food cooking machine currently charges, remind the user that It avoids carrying out some risky operation.

In order to realize that above-described embodiment, the utility model also propose a kind of food cooking machine comprising above-mentioned food cooking The electrification cue circuit of machine.

The food cooking machine of the utility model embodiment passes through the electrification cue circuit of above-mentioned food cooking machine, Neng Gou It after food cooking machine power-off, prompts whether user's food cooking machine currently charges, reminds the user that and avoid carrying out some danger Operation.

In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is based on ... shown in the drawings Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated dress It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to the utility model Limitation.

In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more this feature.The meaning of " plurality " is two or two in the description of the present invention, More than, unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be Mechanical connection can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary two The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis Concrete condition understands the concrete meaning of above-mentioned term in the present invention.

In the present invention unless specifically defined or limited otherwise, fisrt feature is "above" or "below" second feature Can be that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, first is special Sign second feature " on ", " top " and " above " can be fisrt feature and be directly above or diagonally above the second feature, or only Indicate that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of fisrt feature level height and is less than second feature.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into Row combines and combination.

Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model Inside it can make changes, modifications, alterations, and variations to the above described embodiments.

Claims (11)

1. a kind of electrification cue circuit of food cooking machine, which is characterized in that the food cooking machine includes cooking container, driving Motor and Food processing part for being handled food, the food being formed with for holding food in the cooking container hold Receive chamber, the Food processing part stretches into the food accommodating chamber and under the drive of the driving motor relative to the cooking Container rotates, and the electrification cue circuit includes：

The input terminal of rectifier bridge, the rectifier bridge is connected with AC power, and the rectifier bridge is converted to the AC power directly Galvanic electricity source, to supply the driving motor；

Electrolytic capacitor, the positive terminal of the electrolytic capacitor are connected with the first output end of the rectifier bridge, the electrolytic capacitor Negative pole end is grounded after being connected with the second output terminal of the rectifier bridge, and the electrolytic capacitor is steady to be carried out to the DC power supply Pressure；

Prompt unit, the prompt unit are connected in parallel with the electrolytic capacitor, wherein the electrolytic capacitor is in the food material It powers to the prompt unit when reason machine powers off, is carried with send out that the food cooking machine currently charges by the prompt unit Show information.

2. the electrification cue circuit of food cooking machine as described in claim 1, which is characterized in that the driving motor includes：

Stator core, the stator core include the stator yoke of annular and multiple stator teeths, the width of the stator yoke For W, multiple stator teeths are set to the inner peripheral surface of the stator yoke, and it is fixed to be formed between the two neighboring stator teeth Sub- tooth socket, multiple stator teeths limit the stator hole coaxial with the stator yoke, and each stator teeth includes The stator tooth boots of the stator teeth main body that is connected with the stator yoke and the inner end for being located at the stator teeth main body, Mei Gesuo The width for stating stator teeth main body is V, wherein W：V=0.6-0.7；

Rotor core, the rotor core are rotatably arranged in the stator hole and coaxial with the stator hole.

3. the electrification cue circuit of food cooking machine as described in claim 1, which is characterized in that the driving motor includes：

Stator core, the stator core include annular stator yoke and set on the stator yoke inner peripheral surface it is multiple fixed Sub- teeth portion, is formed with stator tooth socket between the two neighboring stator teeth, multiple stator teeths limit with it is described fixed The maximum radial dimension of the coaxial stator hole in sub- yoke portion, the stator yoke is D；

Rotor core, the rotor core is rotatably arranged in the stator hole and, the rotor coaxial with the stator hole The maximum radial dimension of iron core is d, wherein D and d meets：0.4≤d/D≤0.55.

4. the electrification cue circuit of food cooking machine as described in claim 1, which is characterized in that the prompt unit includes carrying The current limiting component for showing lamp, being connected in series with the warning light.

5. the electrification cue circuit of food cooking machine as claimed in claim 4, which is characterized in that the current limiting component includes more A current-limiting resistance being connected in series with.

6. the electrification cue circuit of food cooking machine as claimed in claim 5, which is characterized in that the warning light is LED light.

7. the electrification cue circuit of food cooking machine as claimed in claim 6, which is characterized in that the current-limiting resistance is three When, one end of the first current-limiting resistance is connected with the positive terminal of the electrolytic capacitor, one end of second current-limiting resistance with it is described The other end of first current-limiting resistance is connected, the other end phase of one end of the third current-limiting resistance and second current-limiting resistance Even, the other end of the third current-limiting resistance is connected with the anode of the LED light, the cathode of the LED light and electrolysis electricity The negative pole end of appearance is grounded after being connected.

8. the electrification cue circuit of the food cooking machine as described in any one of claim 1-7, which is characterized in that the driving Motor is DC brushless motor.

9. the electrification cue circuit of food cooking machine as described in claim 1, which is characterized in that the capacitance of the electrolytic capacitor For 400uf-1000uf.

10. the electrification cue circuit of food cooking machine as described in claim 1, which is characterized in that the food cooking machine is Blender, wall-breaking machine, Normal juice machine or juice extractor.

11. a kind of food cooking machine, which is characterized in that including the food cooking machine as described in any one of claim 1-10 Charge cue circuit.