CN217388329U - Motor for food processing machine - Google Patents

Abstract

The utility model relates to a food processingequipment technical field discloses a motor for food processor, including stator module, rotor subassembly, set up in the commutator of rotor subassembly and the carbon brush of adaptation in the commutator, stator module includes stator core and twines in stator core's stator winding, is equipped with insulating support between stator core and the stator winding, and insulating support extends to the cooperation position of carbon brush and commutator at least to separate the shelves with stator winding and carbon brush, commutator at least. Therefore, carbon powder generated when the carbon brush and the commutator rub at a high speed can be effectively blocked, the carbon powder is prevented from being adhered to the stator winding or an insulation structure between the stator winding and the stator core, a conductive path which influences the insulation capacity is prevented from being generated by the carbon powder between the stator winding and the stator core, the insulation tolerance of the stator assembly is further enhanced, and the electric leakage risk is effectively reduced.

Description

Motor for food processing machine

Technical Field

The utility model relates to a food processing technical field, concretely relates to motor for food processing machine.

Background

With the improvement of living standard and the acceleration of life rhythm of people, the food processor is popular to users as a kitchen utensil with high crushing efficiency. At present, a motor is selected as an electric component for power-on operation of a food processor, the motor comprises an enameled wire, a carbon brush, a commutator, a power line wind-powered component, an iron core, a shaft, an installation frame and other non-powered components, and a non-metallic material is required to be used between the powered component and the non-powered component to serve as an insulation partition.

In the motor for common food processor, stator part is through inserting the insulating part between stator core and stator winding in order to realize insulating, nevertheless in motor working process, high-speed friction produces the carbon powder between carbon brush and the commutator, the carbon powder adhesion is on the insulating part, probably cause stator winding, form a conductive path between insulating part and the stator core, the insulating part withstand voltage's ability weakens this moment, can be punctured when receiving high voltage impact, lead to the electric leakage risk, influence food processor's security.

It will thus be seen that the prior art is susceptible to further improvement and enhancement.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem who exists among the prior art, the utility model provides a motor for food processor to promote motor stator module's insulating ability of tolerating, effectively reduce the electric leakage risk.

In order to realize the above object, the utility model provides a motor for food processor, including stator module, rotor subassembly, set up in the commutator of rotor subassembly and the carbon brush of adaptation in the commutator, stator module includes stator core and twines in stator core's stator winding, is equipped with insulating support between stator core and the stator winding, and insulating support extends to the cooperation position of carbon brush and commutator at least to separate the shelves with stator winding and carbon brush, commutator at least.

The utility model provides a motor for food processor, be equipped with insulating support between stator core and stator winding, insulating support's support wall extends to the cooperation position of carbon brush and commutator at least, with stator winding and carbon brush at least, the commutator separates the shelves, produced carbon dust when can effectively blockking carbon brush and commutator high-speed friction, avoided the carbon dust adhesion on the insulation system between stator winding or stator winding and stator core, prevent to generate a conductive path who influences insulating ability by the carbon dust between stator winding and the stator core, and then strengthened stator module's insulating endurance, effectively reduce the electric leakage risk.

In a preferred embodiment, an insulating paper is disposed between the stator core and the stator winding, and the insulating bracket can at least partially surround the insulating paper higher than the end face of the stator core.

Set up insulating paper between stator core and stator winding in order to satisfy the insulating requirement between the two, insulating support will exceed the insulating paper of stator core terminal surface and surround partially at least, can surround insulating support just to that partial insulating paper of commutator, can further prevent the carbon dust adhesion on insulating paper on the one hand, reinforcing stator module's insulating properties, on the other hand, insulating support can give insulating paper circumferential spacing effect, it is spacing to make the insulating paper that exceeds the stator core terminal surface can receive insulating support's circumference.

In a preferred implementation mode, the insulation support comprises a body matched with the end face of the stator core, and the insulation paper is level to or higher than the upper end face of the body.

The position on insulating paper top is injectd in the position that is on the level with or is higher than the body up end, makes the structure cooperation relation of insulating paper and insulating support more closely, specifically, insulating support can play spacing supporting role to the insulating paper that exceeds the stator core terminal surface, prevents that insulating paper from receiving the vibration influence and change the position, and insulating paper is highly suitable simultaneously, can make insulating support better to the effect that blocks of carbon dust, avoids forming electrically conductive route by the carbon dust between stator winding and stator core.

In a preferred implementation mode, the upper end of the insulating paper can be supported and limited by the insulating support.

Insulating paper upper end can the butt on insulating support to make insulating support play the effect of the spacing support of axial to insulating paper, and then the position of insulating paper between stator core and stator winding is more stable, avoids the problem of insulating paper position drunkenness because of motor work vibration arouses, and the position relation of insulating paper and insulating support is more stable, makes the effect of blockking of insulating support to the carbon dust more reliable.

In a preferred implementation, the insulating support is arranged on the end face of the stator core and radially covers at least part of the end face of the stator core.

Insulating support radially covers at least partial stator core terminal surface, and usable insulating support radially covers the stator core terminal surface that is located the commutator side to block the carbon dust through insulating support and drop the adhesion at the stator core terminal surface and paste on the insulating paper that leans on the stator core terminal surface to set up, and then avoid the conductive path who is formed by the carbon dust, strengthened stator module's insulating endurance, effectively reduce the electric leakage risk.

In preferred implementation, the insulating support includes with stator core terminal surface complex body, the body is equipped with the fixed part, and stator core is equipped with cooperation portion, fixed part and cooperation portion fixed connection to it is fixed in stator core terminal surface to make the body laminate.

The insulating support is fixedly connected with the matching part of the stator core through the fixing part of the body, so that at least the body of the insulating support is attached and fixed on the end surface of the stator core; on the other hand, the body of the insulating support is attached to the end face of the stator core and fixed, so that a gap through which carbon powder can pass is avoided from being formed between the body and the stator core, and the blocking effect of the insulating support on the carbon powder is reliable.

In a preferred implementation manner, the insulating support comprises a body and a stopping portion arranged on the side portion of the body, and the stopping portion at least axially extends to the matching position of the carbon brush and the commutator.

The stopping part is formed on the side part of the insulating support body, and the stopping part at least axially extends to the matching position of the carbon brush and the commutator, namely, the stopping part is positioned on the side part of the matching position of the carbon brush and the commutator, so that the stopping of the carbon powder in the lateral direction can be formed, and the carbon powder is prevented from being adhered to insulating paper to cause the formation of a conductive path.

In a preferred implementation mode, symmetrically arranged openings are formed between the stopping parts and the body, and the stator winding higher than the end face of the stator core can be wound in the openings in a limiting mode by taking the stopping parts as winding base faces.

The opening that has formed the symmetry setting between backstop portion and the body, when coiling stator winding, the stator winding that exceeds the stator core terminal surface can be kept by the limited spacing and the plastic of opening and backstop portion of insulating support, specifically, the stator winding that exceeds the stator core terminal surface regards backstop portion as the winding base face and twines in the opening part, and the stator winding of coiling like this is difficult to scatter the shape at the tip, prevents to loose the line.

In a preferred implementation manner, the stator core includes a main frame body surrounded by a plurality of frames and a tooth portion disposed inside the main frame body, the tooth portion has arc walls bending to both sides in the radial direction, and the radial radian of the stopping portion is identical to the radian of the arc walls, so that the winding base surface formed by the stopping portion is coplanar with the arc walls of the tooth portion.

The radial radian of the stopping part is consistent with the radian of the arc-shaped wall, so that the winding base plane formed by the stopping part is coplanar with the arc-shaped wall of the tooth part, the winding base plane of each part of the whole stator winding is formed on the same plane, and the side direction of the stator winding is attached to the same winding base plane, so that the stator winding has stronger positioning performance, better holding capacity is realized, the stator winding is prevented from loosing wires, a gap for allowing carbon powder to pass is not easily formed between the stopping part and the tooth part, and the reliability for stopping the carbon powder is improved.

In a preferred implementation, a notch is provided between the insulating support and the stator core, and the stator winding is fixedly connected with the insulating support through a tie passing through the notch.

Form the notch between insulating support and the stator core, stator winding passes the ribbon and insulating support fixed connection of notch through one, improves the fixed stability of stator winding and insulating support, prevents that stator winding tip is loose, guarantees its normal work on the one hand, and on the other hand can stabilize the position relation of stator winding and insulating support, promotes the effect of whole backstop carbon dust.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic structural diagram of a motor for a food processor according to an embodiment of the present invention.

Fig. 2 is a front view of a motor for a food processor according to an embodiment of the present invention.

Fig. 3 is a partially enlarged view of a part of the structure in fig. 2.

Fig. 4 is a schematic structural diagram of an insulating support according to an embodiment of the present invention.

Fig. 5 is a top view of a stator core according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of an insulating support according to another embodiment of the present invention.

Fig. 7 is a top view of a stator core according to another embodiment of the present invention.

Fig. 8 is a top view of the stator core and the insulating support assembly according to an embodiment of the present invention.

Wherein:

1-stator core, 11-matching part, 12-main frame, 121-frame, 13-tooth part, 131-arc wall and 14-winding position;

2-stator winding;

3-a rotating shaft;

4-a commutator;

5-carbon brush;

6-insulating support, 61-body, 611-fixing part, 62-stopping part, 63-opening and 64-notch;

7-insulating paper.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientation or positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected through a transition structure, but are connected through a connection structure to form a whole. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The following embodiments are specifically adopted:

as shown in fig. 1 and 2, the utility model provides a motor for food processor, including stator module, rotor subassembly, commutator 4 and carbon brush 5, wherein, stator module includes stator core 1 and twines in stator core 1's stator winding 2, and the rotor subassembly includes pivot 3, and commutator 4 sets up on pivot 3, and carbon brush 5 floats the butt in commutator 4's radial both sides to cooperate the work with commutator 4 when the motor starts.

Normally, the stator core 1 and the stator winding 2 need to be insulated, and the insulating paper 7 is arranged between the stator core 1 and the stator winding 2 to be used as an insulating partition between the stator core 1 and the stator winding. In the working process of the motor, carbon powder can be generated due to high-speed friction between the carbon brush 5 and the commutator 4, the carbon powder can fall and adhere to the insulating paper 7, a conductive path is formed among the stator winding 2, the insulating paper 7 and the stator core 1, the insulating paper 7 can be punctured when being impacted by high voltage, the leakage risks such as insulation failure and the like are caused, and the safety of the food processing machine is seriously affected.

In order to solve the above problems, as shown in fig. 1 and fig. 2, an insulating support 6 is arranged between a stator core 1 and a stator winding 2, a support wall surface of the insulating support 6 at least extends to a matching position of a carbon brush 5 and a commutator 4, an axially extending partition wall structure can be formed between the stator winding 2 and the carbon brush 5 and between the stator winding 2 and the commutator 4 by using the insulating support 6, the stator winding 2, the carbon brush 5 and the commutator 4 are at least partitioned, carbon powder generated during high-speed friction between the carbon brush 5 and the commutator 4 can be effectively blocked, the carbon powder is prevented from being adhered to an insulating paper 7 between the stator winding 2 or the stator winding 2 and the stator core 1, a conductive path which influences the insulating capability is prevented from being generated between the stator winding 2 and the stator core 1 by the carbon powder, the insulating tolerance of the stator assembly is further enhanced, and the leakage risk is effectively reduced.

As a preferred embodiment of the present invention, an insulating paper 7 is provided between the stator core 1 and the stator winding 2, and the insulating support 6 can at least partially surround the insulating paper 7 higher than the end surface of the stator core 1.

As shown in fig. 1, fig. 2 and fig. 8, an insulating paper 7 is disposed between the stator core 1 and the stator winding 2, the insulating paper 7 is attached to the inner wall of the stator core 1, and at least covers the winding portion of the stator winding 2 on the stator core 1, so as to play an insulating role between the stator core 1 and the stator winding 2, part of the insulating paper 7 is higher than the end surface of the stator core 1, the insulating bracket 6 can at least partially surround the insulating paper 7 higher than the end surface of the stator core 1, in the embodiment shown in fig. 1, the insulating support 6 surrounds at least that part of the insulating paper 7 which faces the commutator 4, so as to further prevent carbon powder from being adhered on the insulating paper 7, enhance the insulating property of the stator component, and the insulation support 6 can give the spacing effect of insulation paper 7 circumference, makes the insulation paper 7 that exceeds the stator core 1 terminal surface can receive the circumference spacing of insulation support 6.

As a more preferable embodiment of the present invention, the insulating support 6 includes a body 61 end-fitted with the stator core 1, and the insulating paper 7 is flush with or higher than the upper end surface of the body 61.

As shown in fig. 1, the insulation paper 7 is disposed between the stator core 1 and the stator winding 2, the insulation paper 7 is disposed along the axial direction of the inner wall of the stator core 1, the top end of the insulation paper 7 is attached to the side of the insulation support 6 body 61 on the end surface of the stator core 1, and the insulation paper 7 is axially parallel to or higher than the upper end surface of the body 61, so that the part of the insulation paper 7 higher than the end surface of the stator core 1 can be supported by the insulation support 6 in a lateral limiting manner, thereby preventing the insulation paper 7 from changing position due to vibration, so as to better play a role in isolating and insulating between the stator core 1 and the stator winding 2, and meanwhile, the insulation paper 7 is appropriate in height, so that the insulation support 6 has a better effect on blocking carbon powder, and a conductive path formed by carbon powder between the stator winding 2 and the stator core 1 is avoided. Preferably, the thickness H1 of the body 61 is 2-5 mm, and more preferably, H1 is 3.5mm, so that the body 61 can better support and limit the top end of the insulating paper 7.

As a more preferable embodiment of the present invention, the upper end of the insulating paper 7 can be supported and limited by the insulating support 6.

In the embodiment shown in fig. 2, the body 61 of the insulating support 6 is fixed on the end face of the stator core 1, the body 61 extends at least partially along the plane of the end face of the stator core 1, and the upper end of the insulating paper 7 at least partially abuts against the part of the body 61, so that the insulating support 6 acts as an axial limit support for the insulating paper 7.

Preferably, two sides of the insulating paper 7 are higher than the end surface of the stator core 1 to form a longer axial separation area between the stator core 1 and the stator winding 2, and the upper end of the middle insulating paper 7 connecting the two sides abuts on the body 61 to form an axial limiting support of the insulating support 6 to the insulating paper 7. Therefore, the position of the insulating paper 7 between the stator core 1 and the stator winding 2 is more stable, the problem of position movement of the insulating paper 7 caused by working vibration of the motor is avoided, the position relation between the insulating paper 7 and the insulating support 6 is more stable, and the blocking effect of the insulating support 6 on the carbon powder is more reliable.

As a preferred embodiment of the present invention, as shown in fig. 8, the insulating support 6 is disposed on the end surface of the stator core 1 and radially covers at least a part of the end surface of the stator core 1.

Insulating support 6 radially covers 1 terminal surface of at least partial stator core, and usable insulating support 6 will radially cover the 1 terminal surface of stator core that is located commutator 4 side to block the carbon dust through insulating support 6 and drop to glue and paste at 1 terminal surface of stator core and paste on the insulating paper 7 that pastes 1 terminal surface of stator core and set up, and then avoid the electrically conductive route that is formed by the carbon dust, strengthened stator module's insulating endurance, effectively reduce the electric leakage risk.

As a more preferable embodiment, as shown in fig. 5 and 7, the stator core 1 includes a main frame 12 surrounded by a plurality of frames 121 and teeth 13 disposed inside the main frame 12, the teeth 13 and the frames 121 form winding sites 14 of a stator winding 2, the winding sites 14 are c-shaped openings distributed on opposite sides, and as shown in fig. 8, the insulating support 6 covers at least an end face of the winding site 14 in a radial direction.

Therefore, the insulating support 6 can more effectively form a separation between the stator winding 2 and the stator core 1, carbon powder is prevented from falling on the end face of the winding position 14, and a conductive path is prevented from being formed between the stator winding 2 and the stator core 1.

Because the main frame body 12 inboard has a plurality of tooth portions 13, and then has a plurality of coiling positions 14 at the inboard circumference of main frame body 12, the utility model discloses do not do specifically limit to the structural configuration of "insulating support 6", in an embodiment, as shown in fig. 8, each coiling position 14 all disposes an insulating support 6, each insulating support 6 is fixed in the terminal surface of its corresponding coiling position 14 respectively, such insulating support 6 structure can alleviate the holistic weight of insulating support 6 and take up an area of, still can carry out effective backstop to the carbon dust of key position department; in another embodiment, each winding position 14 is provided with one insulating support 6, each insulating support 6 is integrally arranged and fixed on the end face of the stator core 1 as an integral piece, so that the arranged insulating supports 6 can be simultaneously assembled on the stator core 1, the assembly is simplified, the end faces of the stator core 1 can be integrally utilized for limiting, and the consistency is better.

As a preferred embodiment of the present invention, the insulating support 6 includes a body 61 which is matched with the end face of the stator core 1, the body 61 is provided with a fixing portion 611, the stator core 1 is provided with a matching portion 11, the fixing portion 611 is fixedly connected with the matching portion 11, so that the body 61 is attached to the end face of the stator core 1.

As shown in fig. 4 and 5, the fixing portion 611 includes a positioning column disposed on the lower end surface of the body 61, the stator core 1 is correspondingly provided with a positioning hole as the matching portion 11, the positioning column is in insertion fit with the positioning hole to enable the insulating support 6 to be fastened and connected with the stator core 1, after the assembly is completed, the body 61 is attached to the end surface of the stator core 1, on one hand, the insulating support 6 is fixed by the end surface of the stator core 1 in a limiting manner, so that the assembly of the insulating support 6 and the stator core 1 is more stable, and is not easily affected by working vibration; on the other hand, the body 61 of the insulating support 6 is fixed by being attached to the end face of the stator core 1, so that a gap through which carbon powder can pass is avoided, and the blocking effect of the insulating support 6 on the carbon powder is reliable.

Preferably, the positioning hole is close to the outer edge of the stator core 1, and the distance ratio of the center of the positioning hole to the outer edge of the stator core 1 and the inner edge of the stator core 1 is F1: f2 is 0.1-1. The open pore design of the positioning hole effectively avoids the passing track of magnetic lines of force, can prevent the magnetic saturation of the stator core 1 and improve the output capacity of the motor.

In another embodiment, as shown in fig. 6 and 7, the fixing portion 611 includes a positioning plate disposed on the lower end surface of the body 61, the stator core 1 is correspondingly provided with a positioning slot as the matching portion 11, and the positioning slot is matched with the positioning plate for limiting, so as to perform positioning and fixing functions on the insulating support 6, and also can be used as a positioning slot of a tooling when the stator winding 2 is wound.

As a preferred embodiment of the present invention, as shown in fig. 2 and 3, the insulating bracket 6 includes a body 61 and a stopping portion 62 disposed on a side portion of the body 61, and the stopping portion 62 axially extends to a matching position of the carbon brush 5 and the commutator 4.

The body 61 is laminated in stator core 1 terminal surface fixedly, backstop portion 62 sets up in the body 61 lateral wall, and correspond the tooth portion 13 upside that sets up at stator core 1, backstop portion 62 at least axial extension to the cooperation position of carbon brush 5 and commutator 4, the axial region at tooth portion 13 upside extends to the lateral part of carbon brush 5 and commutator 4 cooperation position promptly, as shown in fig. 3 arrow part indication, most carbon dust is stopped blocking by backstop portion 62, only a small amount of carbon dust falls to stator core 1 terminal surface direction, this part carbon dust also can receive the backstop of body 61, prevent directly to fall to stator core 1 terminal surface.

As a more preferable embodiment of the present invention, as shown in fig. 1 to 4, a symmetrical opening 63 is formed between the stopping portion 62 and the body 61, and the stator winding 2 higher than the end surface of the stator core 1 can be wound in the opening 63 by using the stopping portion 62 as a winding base surface.

The opening 63 symmetrically arranged is formed between the stopping portion 62 and the body 61, the opening 63 corresponds to the position of a c-shaped opening between the tooth portion 13 of the stator core 1 and the frame 121 to form a part of the winding position 14 of the stator winding 2, when the stator winding 2 is wound, the stator winding 2 higher than the end surface of the stator core 1 can be limited, limited and shaped and maintained by the opening 63 of the insulating support 6 and the stopping portion 62, specifically, the stator winding 2 higher than the end surface of the stator core 1 is wound at the opening 63 by taking the stopping portion 62 as a winding base surface, and the stator winding 2 wound in the mode is not easy to disperse at the end part and prevents the wires from scattering.

As a more preferable embodiment of the present invention, as shown in fig. 5 and 8, the tooth portion 13 of the stator core 1 has an arc wall 131 that is curved to both sides in the radial direction, and the radial curvature of the stopper portion 62 coincides with the curvature of the arc wall 131, so that the winding base formed by the stopper portion 62 is coplanar with the arc wall 131 of the tooth portion 13.

The radial radian of the stopping part 62 is consistent with the radian of the arc-shaped wall 131, so that the winding base surface formed by the stopping part 62 is coplanar with the arc-shaped wall 131 of the tooth part 13, and further, the winding base surface of each part of the whole stator winding 2 is formed on the same surface, and the stator winding 2 is laterally attached to the same winding base surface, so that the stator winding 2 has stronger positioning performance, better holding capacity is realized on the winding position 14, the stator winding 2 is prevented from loosing wires, a gap for carbon powder to pass through is not easy to form between the stopping part 62 and the tooth part 13, and the reliability of stopping the carbon powder is improved.

Preferably, the edge of the stopping part 62 and the edge of the tooth part 13 have a gap D1, D1 is less than or equal to 1.5mm, and the gap D1 is preferably 0.5mm in the embodiment; a gap D2 is formed between the inner edge of the body 61 and the inner edge of the frame 121, D2 is less than or equal to 1.5mm, and the preferred gap D2 is 0.5mm in the embodiment; the height H2 of the stop part 62 is 5-30 mm, and the height H2 is preferably 17mm in the embodiment.

As a preferred embodiment of the present invention, a notch 64 is provided between the insulating support 6 and the stator core 1, and the stator winding 2 is fixedly connected to the insulating support 6 through a ribbon passing through the notch 64.

In the embodiment shown in fig. 2, the insulating support 6 is provided with the notch 64, the notch 64 is arranged at the contact position of the insulating support 6 and the stator core 1, after the two are fixedly connected, the notch 64 forms a through hole between the insulating support 6 and the stator core 1, the stator winding 2 passes through the through hole by using a ribbon, and then the fixed connection with the insulating support 6 is realized, the stability of fixing the stator winding 2 and the insulating support 6 is improved, the end part of the stator winding 2 is prevented from being loose, on one hand, the normal operation of the stator winding is ensured, on the other hand, the position relation between the stator winding 2 and the insulating support 6 can be stabilized, and the effect of the whole backstop carbon powder is improved.

The technical solution protected by the present invention is not limited to the above embodiments, and it should be noted that the technical solution of any one embodiment is combined with the technical solution of one or more other embodiments in the protection scope of the present invention. Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (10)

1. The utility model provides a motor for food processor, includes stator module, rotor subassembly, set up in the commutator of rotor subassembly and adaptation in the carbon brush of commutator, stator module include stator core and twine in stator core's stator winding, its characterized in that, stator core with be equipped with insulating support between the stator winding, insulating support extends to at least the carbon brush with the cooperation position of commutator, with at least will stator winding with the carbon brush the commutator separates the shelves.

2. The motor for food processing machines of claim 1 wherein insulation paper is disposed between said stator core and said stator windings, said insulation support being capable of at least partially surrounding said insulation paper above said end surface of said stator core.

3. The motor for food processing machine of claim 2 wherein said insulating support includes a body engaging said stator core end face, said insulating paper being flat or higher than an upper end face of said body.

4. The motor for food processing machine according to claim 2, wherein the upper end of the insulating paper is supported and restrained by the insulating support.

5. The motor of claim 1, wherein said insulating support is disposed on said stator core end surface and radially covers at least a portion of said stator core end surface.

6. The motor as claimed in claim 1, wherein the insulating bracket includes a body engaged with the end surface of the stator core, the body has a fixing portion, the stator core has an engaging portion, and the fixing portion is fixedly connected to the engaging portion so that the body is fixed to the end surface of the stator core.

7. The motor of claim 1, wherein the insulating support comprises a body and a stop portion disposed on a side of the body, the stop portion extending at least axially to a position where the carbon brush engages the commutator.

8. The motor as claimed in claim 7, wherein a symmetrical opening is formed between the stopping portion and the body, and the stator winding higher than the end surface of the stator core can be wound in the opening with the stopping portion as a winding base.

9. The motor as claimed in claim 8, wherein the stator core includes a main frame body surrounded by a plurality of frames, and a tooth portion disposed inside the main frame body, the tooth portion has an arc-shaped wall bent to both sides in a radial direction, and a radial curvature of the stopper portion is substantially equal to a curvature of the arc-shaped wall, so that the winding base formed by the stopper portion is coplanar with the arc-shaped wall of the tooth portion.

10. A motor for a food processor as defined in claim 1, wherein a notch is provided between said insulating support and said stator core, and said stator winding is fixedly connected to said insulating support by a tie passing through said notch.

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