CN220857716U - Stator and servo motor - Google Patents

Abstract

The utility model provides a stator and a servo motor, wherein the stator comprises: the stator iron core comprises a stator yoke and a plurality of stator teeth connected in the circumferential direction, and the stator yoke is arranged on the radial outer sides of the plurality of stator teeth; the plurality of insulating frames are arranged on the plurality of stator teeth in a one-to-one correspondence manner, one side of each insulating frame, which is away from the stator teeth, is provided with a plurality of wire-arranging grooves which are radially arranged along the stator core, and at least one wire-arranging groove is arranged in a penetrating manner along the axial direction of the stator core; and each winding is wound in a plurality of wire-arranging grooves on one insulating frame and is matched with the wire-arranging grooves.

Description

Stator and servo motor

Technical Field

The utility model relates to the technical field of motor equipment, in particular to a stator and a servo motor.

Background

At present, the winding displacement of the servo motor in the related art is poor in compactness and irregular in arrangement, so that the slot filling rate of the servo motor is reduced, the power density of the servo motor is low, and the efficiency of the servo motor is influenced.

Disclosure of utility model

Embodiments of the present utility model aim to solve at least one of the technical problems existing in the prior art.

To this end, a first aspect of an embodiment of the utility model provides a stator.

A second aspect of an embodiment of the present utility model provides a servo motor.

In view of this, according to a first aspect of an embodiment of the present utility model, there is provided a stator including: the stator iron core comprises a stator yoke and a plurality of stator teeth connected in the circumferential direction, and the stator yoke is arranged on the radial outer sides of the plurality of stator teeth; the plurality of insulating frames are arranged on the plurality of stator teeth in a one-to-one correspondence manner, one side of each insulating frame, which is away from the stator teeth, is provided with a plurality of wire-arranging grooves which are radially arranged along the stator core, and at least one wire-arranging groove is arranged in a penetrating manner along the axial direction of the stator core; and each winding is wound in a plurality of wire-arranging grooves on one insulating frame and is matched with the wire-arranging grooves.

The stator provided by the embodiment of the utility model comprises a stator core, a plurality of insulating frames and a plurality of windings, and particularly, the stator core comprises a stator yoke and a plurality of stator teeth, wherein the stator yoke is arranged on the radial outer side of the plurality of stator teeth, that is, the stator core is a tooth-yoke separated stator core.

In the circumferential direction of the stator core, a plurality of stator teeth are connected, that is, the tooth-yoke separated stator core has no notch, so that cogging torque can be greatly reduced.

The insulating holders are arranged on the stator teeth in a one-to-one correspondence, that is to say one insulating holder is arranged on each stator tooth. A plurality of wire-arranging grooves are formed in one side, away from the stator teeth, of each insulating frame, the wire-arranging grooves are distributed along the radial direction of the stator core, and each winding is wound in the wire-arranging grooves on one insulating frame.

It can be understood that when assembling the stator, the windings are wound on the insulation frames in a one-to-one correspondence manner, and then the insulation frames are assembled on the stator teeth, that is, the insulation frames are integral insulation frames, compared with the prior art that the segmented iron core structure is wound on the single teeth, and the integral insulation frames are adopted for the inserted frames or the spliced frames, so that the winding is prevented from being loosened after the winding.

Each winding is matched with a plurality of wire-arranging grooves on the insulating frame where the winding is located, that is to say, the wire diameter of the winding is matched with the wire-arranging grooves, so that after the winding is wound on the wire-arranging grooves, the winding can be tightly and orderly arranged, the number of turns of the winding can be increased under the condition of the same space, the slot filling rate is improved, the power density of a motor with the stator is further improved, and the motor efficiency is improved.

Along stator core's axial direction, at least one winding displacement groove link up the setting, that is to say, at least one winding displacement groove is axial link up to after winding around establishing on a plurality of winding displacement grooves, can make the wire winding arrange inseparabler, neat, further improve groove full rate and the power density of motor, promote motor efficiency.

Optionally, each winding slot is communicated along the axial direction of the stator core, so that winding is further compactly and orderly arranged, and the slot filling rate and the power density of the motor are further improved.

Optionally, the insulating frame is an insulating material having high fluidity.

In addition, the stator provided by the technical scheme of the utility model has the following additional technical characteristics:

In some technical schemes, optionally, along the circumferential direction of the stator core, the depth h of at least one wire arrangement groove and the wire diameter d of the winding meet the requirement that h is more than or equal to 0.3d.

In the technical scheme, the depth of at least one winding slot is larger than or equal to 0.3 times of the wire diameter of the winding along the circumferential direction of the stator core, so that the winding can be tightly, neatly and firmly arranged after being wound on a plurality of winding slots. In addition, the number of turns of winding can be increased under the condition of the same space, so that the slot filling rate is improved, the power density of the motor with the stator is further improved, and the motor efficiency is improved.

It can be understood that the outer wall of the insulating frame is provided with a wire winding groove, a plurality of wire winding grooves are positioned in the wire winding groove, the depth of at least one wire winding groove is greater than or equal to 0.3 time of the wire diameter of the winding, the space in the wire winding groove can be increased, more turns can be wound on the winding, and the full slot rate of the motor is improved.

If the depth of the wire-arranging groove is shallower, namely h is smaller than 0.3d, the space in the groove of the wire-arranging groove is relatively smaller, the number of turns of winding is smaller, the winding arrangement is not compact, and the groove filling rate of the motor is affected.

In some technical solutions, optionally, each insulating frame further includes an insulating portion, the insulating portion is provided with a mounting hole, each stator tooth passes through one mounting hole, and the plurality of wire-arranging grooves are arranged on one side of the insulating portion away from the mounting hole; wherein, along the circumferential direction of the stator core, the minimum value b of the thickness of the insulating part satisfies b.ltoreq.0.3 mm.

In this technical scheme, it has still included the insulating part to have limited every insulating frame, and specifically, the insulating part is provided with the mounting hole, after winding a plurality of windings respectively on a plurality of insulating frames, every stator tooth passes the mounting hole on an insulating frame, realizes the assembly of insulating frame and stator tooth.

The plurality of wire-arranging grooves are arranged on one side of the insulating part, which is away from the mounting hole, that is, along the circumferential direction of the stator core, the mounting hole is positioned on the inner side of the insulating frame, and the plurality of wire-arranging grooves are positioned on the outer side of the insulating frame.

Along the circumferential direction of the stator core, the minimum value of the thickness of the insulating part is smaller than or equal to 0.3mm, that is, the thickness of the thinnest part of the insulating part is smaller than or equal to 0.3mm, that is, the circumferential thickness of the insulating part is thinned, so that the space in the winding groove can be greatly utilized, the full rate of the groove and the power density of the motor are further improved, and the motor efficiency is improved.

In some embodiments, optionally, the stator further includes a compressing member disposed in the mounting hole and abutting the stator teeth.

In this technical scheme, it still includes the compressing tightly piece to have limited the stator, specifically, compressing tightly the piece setting in the mounting hole, and compressing tightly piece and stator tooth offset to when will around the insulating frame after establishing the winding on the stator tooth, because compressing tightly piece and stator tooth offset, thereby can assemble the insulating frame on the stator tooth reliably, effectively prevent after the insulating frame is installed, the problem that the insulating frame drops from the stator tooth at the in-process that the stator removed, ensure stability and reliability after the stator assembly, and then promote the running stability of the motor that has this stator.

Moreover, compared with the related art in which the insulating frame is directly assembled on the stator teeth, the mounting efficiency can be improved while the reliable assembly of the insulating frame and the stator teeth is realized.

Optionally, the compressing member and the insulating frame are in an integral structure, and it can be understood that the integral structure has good mechanical properties, so that the connection strength of the compressing member and the insulating frame can be improved, and effective matching of the compressing member and the stator teeth is ensured. In addition, the integrated structure is beneficial to processing and production, so that the production cost of the stator can be reduced.

Optionally, the compressing element is an elastic element, when the stator tooth passes through the mounting hole on the insulating frame after winding, the stator tooth is propped against the elastic element, that is, in the process that the stator tooth passes through the mounting hole, the elastic element is extruded by the stator tooth, so that the elastic element is elastically deformed, the elastic element which is elastically deformed generates elastic force to one side where the stator tooth is located, so as to improve the compressing force between the stator tooth and the elastic element, ensure that the insulating frame is firmly assembled on the stator tooth, effectively prevent the problem that the insulating frame falls off from the stator tooth in the process of moving the stator after the insulating frame is installed, ensure the stability and reliability of the stator after being assembled, and further improve the running stability of the motor with the stator.

Optionally, the pressing member includes a plurality of protruding thorns, and the plurality of protruding thorns are arranged at intervals in the mounting hole.

In some embodiments, optionally, the pressing member includes a plurality of ribs disposed in the mounting hole, the plurality of ribs being arranged at intervals; at least a portion of each rib extends in a radial direction of the stator core and within the mounting hole, and the plurality of ribs are abutted against the stator teeth.

In this technical scheme, it includes a plurality of fins to inject the piece that compresses tightly, and a plurality of fins interval distribution are in the mounting hole, and a plurality of fins offset with the stator tooth, that is to say, when the stator tooth passes the mounting hole on the insulating frame after winding, the stator tooth offsets with a plurality of fins.

Specifically, in the process that the stator tooth passes the mounting hole, because the stator tooth extrudes a plurality of bead for the insulator rack firmly assembles on the stator tooth, effectively prevents the insulator rack installation back, and the in-process insulator rack that removes at the stator drops from the stator tooth problem, ensures stability and reliability after the stator assembly, and then promotes the running stability of the motor that has this stator.

Moreover, compared with the related art in which the insulating frame is directly assembled on the stator teeth, the mounting efficiency can be improved while the reliable assembly of the insulating frame and the stator teeth is realized.

Optionally, the plurality of ribs are spaced apart in the mounting hole, specifically, when the stator tooth passes through the mounting hole, the stator tooth abuts against at least one rib in the circumferential direction of the stator core, that is, the insulating frame includes two first inner walls located in the mounting hole and opposite in the circumferential direction, and the at least one rib is disposed on the first inner walls.

And/or, when the stator tooth passes through the mounting hole, the stator tooth is abutted against at least one lug in the axial direction of the stator core, that is, the insulating frame comprises two second inner walls which are positioned in the mounting hole and are opposite in the axial direction, and the at least one lug is arranged on the second inner walls. The setting position of the concrete convex rib can be set according to actual needs.

In some technical schemes, optionally, the stator further comprises a limiting boss, wherein the limiting boss is arranged in the mounting hole and is arranged at intervals with the pressing piece, and the limiting boss abuts against the stator teeth along the axial direction of the stator core.

In this technical scheme, it still includes spacing boss to have limited the stator, specifically, spacing boss sets up in the mounting hole, and spacing boss and the setting of compressing tightly the piece interval.

Along the axial direction of the stator core, the limit boss is abutted against the stator teeth, that is, when the stator teeth pass through the mounting holes on the insulation frame after winding, the stator teeth are abutted against the limit boss in the axial direction of the stator core.

It can be understood that the four corners in the mounting hole are all round corners, and if the stator teeth are directly contacted with the inner wall of the mounting hole, the round corner structure in the mounting hole is easy to damage.

Through set up spacing boss in the mounting hole to make stator tooth and spacing boss offset in axial direction, thereby make and have certain clearance between stator tooth and the inner wall of mounting hole, effectively avoid when carrying out the assembly of insulating frame and stator tooth, the stator tooth damage insulating frame's structure, further extension insulating frame's life ensures the reliable operation of the motor that has this stator.

Optionally, along the axial direction of stator core, the quantity of spacing boss is two, is located axial both sides respectively to further avoid damaging the insulating frame in the assembly process of insulating frame and stator tooth.

Optionally, the limit boss is disposed on the second inner wall.

In some technical schemes, optionally, the stator further comprises a plurality of binding posts and an adapter plate, wherein each insulation frame is provided with a plurality of binding posts, the head end and the tail end of each winding are respectively wound on the binding posts, and the adapter plate is connected with the binding posts.

In the technical scheme, the stator is limited to further comprise a plurality of binding posts and an adapter plate, and particularly, a plurality of binding posts are arranged on each insulating frame, the head end and the tail end of each winding are respectively wound on the binding posts of one insulating frame, and the adapter plate is connected with the binding posts to realize line switching of the stator.

Specifically, a first binding post and a second binding post are arranged on each insulating frame, the head end of the winding is wound on the first binding post, and the tail end of the winding is wound on the second binding post, so that the head and tail conduction of the winding is realized. The adapter plate is electrically connected with the plurality of binding posts, so that connection among the plurality of windings is realized by utilizing a circuit structure in the adapter plate.

Optionally, a plurality of interfaces are arranged on the adapter plate, when the adapter plate is installed, each binding post is inserted into one interface and then welded, so that the electrical connection between the adapter plate and the plurality of binding posts can be realized.

Optionally, the post is a conductor.

Optionally, the adapter plate is a PCB circuit board.

In some technical schemes, optionally, at least one insulating frame is further provided with a limiting part, the limiting part is arranged at intervals with the plurality of binding posts, and the limiting part is propped against the adapter plate along the axial direction of the stator core.

In this technical scheme, it is still equipped with spacing portion to have limited at least one insulating frame, and specifically, spacing portion and a plurality of terminal interval setting. Along the axial direction of stator core, spacing portion offsets with the keysets to when installing the keysets, can carry out spacingly to the keysets in the axial direction, when installing the keysets promptly, when keysets offsets with spacing portion, instruct the keysets to install in place promptly, thereby can effectively improve the installation effectiveness of keysets, and then promote holistic installation effectiveness of stator, reduce assembly cost.

Moreover, the limit part is used for axially limiting the adapter plate, so that the installation stability of the adapter plate can be ensured, the adapter plate is prevented from axially moving, namely, the uniqueness of the installation positions of the shell and the adapter plate is ensured, the smooth plug connection of the plug connection port on the adapter plate and the plug connector on the shell is realized, and the running stability and the reliability of the motor with the stator are improved.

Optionally, a limiting part is arranged on each insulating frame, so that the mounting efficiency of the adapter plate can be further improved, the mounting stability of the adapter plate is ensured, and the axial movement of the adapter plate is further avoided.

In some technical solutions, optionally, each insulating rack is further provided with a mounting surface, and the plurality of binding posts are arranged on the mounting surface at intervals; the at least one insulating frame is also provided with a wire passing groove, the wire passing groove is positioned at the radial outer side of the plurality of wire discharging grooves and communicated with the plurality of wire discharging grooves, and the wire passing groove extends to the mounting surface along the axial direction of the stator core.

In this technical scheme, it is still equipped with the wire casing to have limited at least one insulating frame, specifically, along stator core's radial direction, crosses the wire casing and is located the outside of a plurality of wire casings, and crosses wire casing and a plurality of wire casings intercommunication.

Each insulating frame is provided with a mounting surface, a plurality of binding posts are arranged on the mounting surface at intervals, and the wire passing grooves axially extend to the mounting surface, that is to say, the wire passing grooves are communicated with the mounting surface.

Specifically, when winding of the winding is performed, the head end of the winding is wound on one of the binding posts, and after a certain number of turns are wound, the winding passes through the wire slot to smoothly transition into the plurality of wire-arranging slots, so that the winding is wound in the plurality of wire-arranging slots.

Through setting up the wire casing for the tip winding displacement of winding is also neat inseparabler, can be when increasing the number of turns that the winding was around establishing, improves the groove full rate, and then improves the power density of the motor that has this stator, improves the uniformity of wire winding when stator mass production.

It can be understood that after the last winding of the winding is completed, the tail end of the winding is wound on the other binding post, so that the end-to-end conduction of the winding is realized.

Optionally, the spacing portion is disposed on the mounting surface, and the spacing portion is disposed at an interval from the binding post.

Optionally, a wire passing groove is formed in each insulating frame, so that when each winding is wound on the insulating frame, the winding can be smoothly transited into the wire passing groove, and the end part of each winding is ensured to be tidy and compact.

In some technical solutions, optionally, at least one insulating frame is further provided with a transition surface, the transition surface is located radially inside the wire passing groove, the transition surface includes a first end and a second end that are circumferentially opposite, and the first end is disposed closer to the wire passing groove than the second end; the distance between the first end and the central axis of the stator core is smaller than the distance between the second end and the central axis of the stator core.

In this solution, it is defined that at least one insulating frame is further provided with a transition surface, in particular, the transition surface is located radially inside the wire passing groove, that is, in the radial direction of the stator core, the transition surface is located inside the wire passing groove, that is, the wire passing groove is located outside the transition surface.

Along the circumference direction of the stator core, the transition surface comprises a first end and a second end which are opposite, wherein the first end of the transition surface is arranged close to the wire passing groove compared with the second end of the transition surface, that is, one end of the transition surface is close to the wire passing groove.

The distance between the first end of the transition surface and the central axis of the stator core is smaller than the distance between the second end of the transition surface and the central axis of the stator core, that is, the transition surface is obliquely arranged on the side where the wire passing groove is located.

Specifically, when the winding is performed, the head end of the winding is wound on one of the binding posts, after a certain number of turns are wound, the winding passes through the wire passing groove to smoothly transition into a first wire arranging groove of the plurality of wire arranging grooves, after the first wire arranging groove is wound with a circle, the winding is matched with the transition surface, namely, the winding is smoothly transitioned into a second wire arranging groove of the plurality of wire arranging grooves along the transition surface, and the next wire arrangement can be sequentially arranged, so that the uniformity and compactness of the winding end wire arrangement are further ensured, the number of turns of winding is increased, the slot filling rate is improved, the power density of a motor with the stator is further improved, and meanwhile, the consistency of the winding during mass production of the stator is improved.

It can be understood that after the last winding of the winding is completed, the tail end of the winding is wound on the other binding post, so that the end-to-end conduction of the winding is realized.

In some embodiments, optionally, a chamfer is provided at an end of the at least one insulating holder facing away from the plurality of posts.

In this solution, it is defined that one end of the at least one insulating holder facing away from the plurality of binding posts is provided with a chamfer. It will be appreciated that when the stator yoke is assembled, the side of the insulator bracket provided with the chamfer passes through the stator yoke to thereby assemble the stator yoke on the stator teeth.

Through setting up the chamfer in one side that at least one insulating frame deviates from a plurality of terminal to can effectively reduce the wearing and tearing of insulating frame at the in-process of assembly stator yoke, avoid the stator yoke to gnaw the insulating frame promptly, prolong the life of insulating frame, ensure the reliable assembly of stator yoke and stator tooth.

Optionally, one end of each insulating frame, which is away from the plurality of binding posts, is provided with a chamfer, so that abrasion of the insulating frame is further reduced, the service life of the insulating frame is prolonged, and reliable assembly of the stator yoke and the stator teeth is ensured.

Optionally, chamfer angles are symmetrically arranged on two sides of the at least one insulating frame.

In some technical solutions, optionally, a positioning groove is further formed on the outer side of at least one insulating frame along the radial direction of the stator core; the adapter plate is provided with at least one positioning hole, and each positioning hole is opposite to one positioning groove along the axial direction of the stator core.

In this technical scheme, it has been limited along stator core's radial direction, and the outside of at least one insulating frame still is provided with the constant head tank, and it can be understood that when carrying out the suit of stator tooth and stator yoke, available frock and constant head tank cooperation to can guarantee the relative position of stator tooth and stator yoke installation, realize stator yoke and stator tooth's quick reliable assembly, and then promote stator's assembly efficiency.

In addition, after the stator is assembled, when the stator is integrally assembled on the shell, the fixture can be matched with the positioning groove, so that the relative position between the plug interface on the adapter plate and the plug connector on the shell is ensured, the quick plug connection is realized, and the smooth installation of the plug connector is ensured.

In addition, in the process of installing the adapter plate, the installation and the positioning of the adapter plate can be realized through the matching of the positioning groove and the positioning hole on the adapter plate, so that the installation efficiency of the adapter plate is improved, the overall installation efficiency of the stator is further improved, and the assembly cost of the stator is reduced.

Optionally, a positioning groove is disposed on the radial outer side of each insulating frame, so as to improve the positioning effect.

The adapter plate is provided with at least one positioning hole, specifically, the positioning hole is opposite to the positioning groove along the axial direction of the stator core, namely, the positioning groove is matched with the positioning hole on the adapter plate to realize the installation and positioning of the adapter plate, so that the installation efficiency of the adapter plate is improved, the overall installation efficiency of the stator is further improved, and the assembly cost of the stator is reduced.

Optionally, a plurality of positioning holes are formed in the adapter plate, the positioning holes are arranged at intervals, and each positioning hole is axially opposite to one positioning groove, so that rapid installation and positioning of the adapter plate are realized, the installation efficiency of the adapter plate is further improved, the overall installation efficiency of the stator is further improved, and the assembly cost of the stator is reduced.

According to a second aspect of the present utility model, there is provided a servo motor, including a stator provided in any of the above-mentioned technical solutions, so as to have all the beneficial technical effects of the stator, which are not described herein again.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

Fig. 1 shows one of schematic structural views of an insulating frame according to an embodiment of the present utility model;

FIG. 2 shows a second schematic structural view of an insulating frame according to one embodiment of the present utility model;

FIG. 3 shows a third schematic structural view of an insulating frame according to one embodiment of the present utility model;

FIG. 4 shows a fourth schematic structural view of an insulating frame according to one embodiment of the present utility model;

FIG. 5 shows a fifth schematic structural view of an insulating frame according to one embodiment of the present utility model;

FIG. 6 shows a sixth schematic structural view of an insulating frame according to one embodiment of the present utility model;

FIG. 7 shows one of the structural schematic diagrams of a stator according to one embodiment of the utility model;

FIG. 8 shows a second schematic structural view of a stator according to an embodiment of the present utility model;

FIG. 9 shows a third schematic structural view of a stator according to an embodiment of the present utility model;

Fig. 10 shows a fourth schematic structural view of a stator according to an embodiment of the present utility model.

The correspondence between the reference numerals and the component names in fig. 1 to 10 is:

100 stators, 110 stator cores, 111 stator yokes, 112 stator teeth, 120 insulation frames, 121 wiring grooves, 122 insulation parts, 123 mounting holes, 124 mounting surfaces, 125 transition surfaces, 130 windings, 140 compacting pieces, 141 convex edges, 150 limiting bosses, 160 binding posts, 170 adapter plates, 180 limiting parts, 190 wiring grooves, 210 first ends, 220 second ends, 230 chamfer angles, 240 positioning grooves and 250 positioning holes.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced otherwise than as described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

A stator 100 and a servo motor provided according to some embodiments of the present utility model are described below with reference to fig. 1 to 10.

In one embodiment according to the present application, as shown in fig. 1, 3, 4, 5, 6, 9 and 10, a stator 100 is proposed, the stator 100 comprising: a stator core 110, the stator core 110 including a stator yoke 111 and a plurality of stator teeth 112 connected in a circumferential direction, the stator yoke 111 being provided radially outside the plurality of stator teeth 112; the plurality of insulating frames 120 are arranged on the plurality of stator teeth 112 in a one-to-one correspondence manner, one side of each insulating frame 120, which is away from the stator teeth 112, is provided with a plurality of wire-arranging grooves 121 which are arranged along the radial direction of the stator core 110, and at least one wire-arranging groove 121 is arranged in a penetrating manner along the axial direction of the stator core 110; the plurality of windings 130, each winding 130 is wound in a plurality of wire-arranging grooves 121 on one insulating frame 120, and is matched with the plurality of wire-arranging grooves 121.

The stator 100 provided by the embodiment of the utility model includes a stator core 110, a plurality of insulating frames 120 and a plurality of windings 130, specifically, the stator core 110 includes a stator yoke 111 and a plurality of stator teeth 112, and the stator yoke 111 is disposed radially outside the plurality of stator teeth 112, that is, the stator core 110 is a tooth-yoke separated stator core 110.

In the circumferential direction of the stator core 110, a plurality of stator teeth 112 are connected, that is, the tooth-yoke separated stator core 110 has no slot, so that cogging torque can be greatly reduced.

The insulating holders 120 are provided on the stator teeth 112 in a one-to-one correspondence, that is, one insulating holder 120 is provided on each stator tooth 112. A plurality of wire-arranging grooves 121 are provided on a side of each insulating frame 120 facing away from the stator teeth 112, the plurality of wire-arranging grooves 121 are arranged in a radial direction of the stator core 110, and each winding 130 is wound in the plurality of wire-arranging grooves 121 on one insulating frame 120.

It can be appreciated that when the stator 100 is assembled, the windings 130 are wound on the insulating frames 120 in a one-to-one correspondence, and then the insulating frames 120 are assembled on the stator teeth 112, that is, the insulating frames 120 are integral insulating frames, compared with the prior art that the split iron core structure is wound on a single tooth, and the integral insulating frames are adopted for the plug-in frames or the spliced frames, so that the winding is prevented from being loosened after the winding.

Each winding 130 is matched with the plurality of wire-arranging grooves 121 on the insulating frame 120 where the winding 130 is located, that is, the wire diameter of the winding 130 is matched with the plurality of wire-arranging grooves 121, so that after the winding 130 is wound on the plurality of wire-arranging grooves 121, the winding is tightly and orderly arranged, the number of turns wound on the winding 130 can be increased under the condition of the same space, the slot filling rate is improved, the power density of the motor with the stator 100 is further improved, and the motor efficiency is improved.

Along the axial direction of the stator core 110, at least one winding slot 121 is arranged in a penetrating manner, that is, at least one winding slot 121 is arranged in an axial penetrating manner, so that after the winding 130 is wound on the plurality of winding slots 121, winding wires can be arranged more tightly and tidily, the slot filling rate and the power density of the motor are further improved, and the motor efficiency is improved.

Alternatively, each of the winding grooves 121 is perforated in the axial direction of the stator core 110, further making the winding arrangement more compact and tidy, further improving the slot filling rate and the power density of the motor.

Alternatively, the insulating frame 120 is an insulating material having high fluidity.

In some embodiments, optionally, in the circumferential direction of the stator core 110, a depth h of at least one wire-arranging groove 121 and a wire diameter d of the winding 130 satisfy h+.0.3 d.

In this embodiment, the depth of at least one of the winding grooves 121 is greater than or equal to 0.3 times the wire diameter of the winding 130 in the circumferential direction of the stator core 110, so that the winding can be closely aligned, neat, and firm after the winding 130 is wound on the plurality of winding grooves 121. In addition, the number of turns of the winding 130 can be increased under the same space condition, so that the slot filling rate is improved, the power density of the motor with the stator 100 is further improved, and the motor efficiency is improved.

It can be appreciated that the outer wall of the insulating frame 120 is provided with a winding slot, the plurality of winding slots 121 are located in the winding slot, and the depth of at least one winding slot 121 is greater than or equal to 0.3 times of the wire diameter of the winding 130, so that the space in the winding slot can be increased, the winding 130 can be wound with more turns, and the slot filling rate of the motor can be improved.

If the depth of the wire-arranging groove 121 is shallow, i.e. h is smaller than 0.3d, the space in the groove of the wire-arranging groove is relatively small, the number of turns of the winding 130 wound is small, the winding 130 is not tightly arranged, and the groove filling rate of the motor is affected.

As shown in fig. 4, in some embodiments, optionally, each insulating frame 120 further includes an insulating portion 122, the insulating portion 122 is provided with a mounting hole 123, each stator tooth 112 passes through one mounting hole 123, and a plurality of wire-arranging slots 121 are provided on a side of the insulating portion 122 facing away from the mounting hole 123; wherein, in the circumferential direction of the stator core 110, the minimum value b of the thickness of the insulating portion 122 satisfies b.ltoreq.0.3 mm.

In this embodiment, it is defined that each of the insulation frames 120 further includes an insulation portion 122, specifically, the insulation portion 122 is provided with a mounting hole 123, and after winding the plurality of windings 130 on the plurality of insulation frames 120, respectively, each of the stator teeth 112 passes through the mounting hole 123 on one of the insulation frames 120 to achieve assembly of the insulation frames 120 with the stator teeth 112.

The plurality of wire-discharge grooves 121 are provided at a side of the insulating portion 122 facing away from the mounting hole 123, that is, in the circumferential direction of the stator core 110, the mounting hole 123 is located at an inner side of the insulating frame 120, and the plurality of wire-discharge grooves 121 are located at an outer side of the insulating frame 120.

Along the circumferential direction of the stator core 110, the minimum value of the thickness of the insulating portion 122 is less than or equal to 0.3mm, that is, the thickness of the thinnest part of the insulating portion 122 is less than or equal to 0.3mm, that is, the circumferential thickness of the insulating portion 122 is thinned, so that the space in the winding slot can be greatly utilized, the slot filling rate and the power density of the motor are further improved, and the motor efficiency is improved.

As shown in fig. 1, 2, 4, and 5, in some embodiments, optionally, the stator 100 further includes a compression member 140, where the compression member 140 is disposed within the mounting hole 123 and abuts the stator teeth 112.

In this embodiment, the stator 100 is defined to further include the pressing member 140, specifically, the pressing member 140 is disposed in the mounting hole 123, and the pressing member 140 abuts against the stator teeth 112, so that when the insulation frame 120 around which the winding 130 is wound is assembled on the stator teeth 112, the pressing member 140 abuts against the stator teeth 112, so that the insulation frame 120 can be reliably assembled on the stator teeth 112, and the problem that the insulation frame 120 falls off from the stator teeth 112 in the moving process of the stator 100 after the insulation frame 120 is installed is effectively prevented, so that the stability and reliability of the assembled stator 100 are ensured, and the operation stability of the motor with the stator 100 is further improved.

Also, the mounting efficiency can be improved while achieving reliable assembly of the insulating frame 120 with the stator teeth 112, compared to the related art in which the insulating frame is directly assembled on the stator teeth.

Alternatively, the compressing element 140 and the insulating frame 120 are integrally formed, and it is understood that the integral structure has good mechanical properties, so that the connection strength between the compressing element 140 and the insulating frame 120 can be improved, and the compressing element 140 and the stator teeth 112 can be effectively matched. In addition, the integrated structure is also advantageous in terms of processing and production, so that the production cost of the stator 100 can be reduced.

Optionally, the pressing member 140 is an elastic member, when the stator teeth 112 pass through the mounting hole 123 on the insulating frame 120 around which the winding 130 is wound, the stator teeth 112 are abutted against the elastic member, that is, in the process that the stator teeth 112 pass through the mounting hole 123, the elastic member is elastically deformed due to the extrusion of the stator teeth 112, and the elastic member elastically deformed generates an elastic force to one side of the stator teeth 112, so as to improve the pressing force between the stator teeth 112 and the elastic member, so that the insulating frame 120 is firmly assembled on the stator teeth 112, effectively preventing the problem that the insulating frame 120 falls off from the stator teeth 112 in the moving process of the stator 100 after the insulating frame 120 is installed, ensuring the stability and reliability of the assembled stator 100, and further improving the running stability of the motor with the stator 100.

Optionally, the pressing member 140 includes a plurality of protruding thorns spaced apart in the mounting hole 123.

As shown in fig. 4, in some embodiments, the pressing member 140 may optionally include a plurality of ribs 141 positioned in the mounting hole 123, the plurality of ribs 141 being spaced apart; at least a portion of each of the ribs 141 extends in the radial direction of the stator core 110 and within the mounting hole 123, and the plurality of ribs 141 are abutted against the stator teeth 112.

In this embodiment, the pressing member 140 is defined to include a plurality of ribs 141, the plurality of ribs 141 are spaced apart in the mounting hole 123, and the plurality of ribs 141 are abutted against the stator teeth 112, that is, when the stator teeth 112 pass through the mounting hole 123 on the insulation frame 120 around which the winding 130 is wound, the stator teeth 112 are abutted against the plurality of ribs 141.

Specifically, in the process that the stator teeth 112 pass through the mounting holes 123, since the stator teeth 112 squeeze the plurality of ribs 141, the insulating frame 120 is firmly assembled on the stator teeth 112, so that the problem that the insulating frame 120 falls off from the stator teeth 112 in the process that the stator 100 moves after the insulating frame 120 is effectively prevented, the stability and the reliability of the assembled stator 100 are ensured, and the running stability of the motor with the stator 100 is further improved.

Also, the mounting efficiency can be improved while achieving reliable assembly of the insulating frame 120 with the stator teeth 112, compared to the related art in which the insulating frame is directly assembled on the stator teeth.

Alternatively, the plurality of ribs 141 are spaced apart within the mounting hole 123, specifically, when the stator teeth 112 pass through the mounting hole 123, the stator teeth 112 are abutted against the at least one rib 141 in the circumferential direction of the stator core 110, that is, the insulating frame 120 includes two first inner walls located within the mounting hole 123 and opposite in the circumferential direction, and the at least one rib 141 is disposed on the first inner walls.

And/or, when the stator teeth 112 pass through the mounting hole 123, the stator teeth 112 are abutted against the at least one rib 141 in the axial direction of the stator core 110, that is, the insulating frame 120 includes two second inner walls located in the mounting hole 123 and opposite in the axial direction, and the at least one rib 141 is disposed on the second inner walls. The specific rib 141 may be disposed according to actual needs.

As shown in fig. 1, 2 and 5, in some embodiments, optionally, the stator 100 further includes a limiting boss 150, where the limiting boss 150 is disposed in the mounting hole 123 and spaced from the pressing member 140, and the limiting boss 150 abuts against the stator teeth 112 along the axial direction of the stator core 110.

In this embodiment, it is defined that the stator 100 further includes a limit boss 150, specifically, the limit boss 150 is disposed in the mounting hole 123, and the limit boss 150 is disposed at a distance from the pressing member 140.

In the axial direction of the stator core 110, the limit boss 150 abuts against the stator teeth 112, that is, when the stator teeth 112 pass through the mounting hole 123 of the insulation frame 120 around which the winding 130 is wound, the stator teeth 112 abut against the limit boss 150 in the axial direction of the stator core 110.

It will be appreciated that the four corners in the mounting hole 123 are rounded, and if the stator teeth 112 directly contact the inner wall of the mounting hole 123, the rounded structure in the mounting hole 123 is easily damaged.

Through set up spacing boss 150 in mounting hole 123 to make stator tooth 112 and spacing boss 150 offset in the axial direction, thereby make there be certain clearance between stator tooth 112 and the inner wall of mounting hole 123, effectively avoid when carrying out the assembly of insulator bracket 120 and stator tooth 112, the structure of insulator bracket 120 is damaged to stator tooth 112, further extension insulator bracket 120's life guarantees the reliable operation of the motor that has this stator 100.

Optionally, the number of the limiting bosses 150 is two along the axial direction of the stator core 110, and the limiting bosses are respectively located at two sides of the axial direction, so as to further avoid damaging the insulating frame 120 during the assembly process of the insulating frame 120 and the stator teeth 112.

Optionally, a limit boss 150 is provided on the second inner wall.

As shown in fig. 1, 2, 3, 5, 6, 7 and 8, in some embodiments, optionally, the stator 100 further includes a plurality of terminals 160 and an adapter plate 170, where each insulating frame 120 is provided with a plurality of terminals 160, and a head end and a tail end of each winding 130 are respectively wound on the plurality of terminals 160, and the adapter plate 170 is connected to the plurality of terminals 160.

In this embodiment, the stator 100 is further defined to include a plurality of binding posts 160 and an adapter plate 170, specifically, a plurality of binding posts 160 are disposed on each insulating frame 120, and the head end and the tail end of each winding 130 are respectively wound on the plurality of binding posts 160 of one insulating frame 120, and the adapter plate 170 is connected to the plurality of binding posts 160 to implement line switching of the stator 100.

Specifically, each insulating frame 120 is provided with a first binding post and a second binding post, the head end of the winding 130 is wound on the first binding post, and the tail end of the winding 130 is wound on the second binding post, so that the head and tail conduction of the winding 130 is realized. The adapter plate 170 is electrically connected to the plurality of posts 160, thereby achieving connection between the plurality of windings 130 using a circuit structure within the adapter plate 170.

Optionally, a plurality of interfaces are provided on the adapter plate 170, and when the adapter plate 170 is installed, each of the binding posts 160 is inserted into one of the interfaces and then soldered, so that the electrical connection between the adapter plate 170 and the plurality of binding posts 160 can be achieved.

Optionally, the post 160 is a conductor.

Optionally, the interposer 170 is a PCB circuit board.

As shown in fig. 1, 2, 3, 5, 6 and 8, in some embodiments, optionally, at least one insulating frame 120 is further provided with a limiting portion 180, where the limiting portion 180 is disposed at intervals with the plurality of binding posts 160, and the limiting portion 180 abuts against the adapter plate 170 along the axial direction of the stator core 110.

In this embodiment, it is defined that at least one of the insulating holders 120 is further provided with a stopper 180, specifically, the stopper 180 is disposed at a distance from the plurality of posts 160. Along the axial direction of the stator core 110, the limiting part 180 abuts against the adapter plate 170, so that the adapter plate 170 can be limited in the axial direction when the adapter plate 170 is installed, namely, when the adapter plate 170 is installed, the adapter plate 170 is installed in place when the adapter plate 170 abuts against the limiting part 180, and therefore the installation efficiency of the adapter plate 170 can be effectively improved, the overall installation efficiency of the stator 100 is further improved, and the assembly cost is reduced.

Moreover, the limiting part 180 is used for axially limiting the adapter plate 170, so that the installation stability of the adapter plate 170 can be ensured, the adapter plate 170 is prevented from axially moving, namely, the uniqueness of the installation positions of the machine shell and the adapter plate 170 is ensured, the smooth plug-in connection of the plug-in connector on the adapter plate 170 and the plug-in connector on the machine shell is realized, and the running stability and the reliability of the motor with the stator 100 are improved.

Optionally, a limiting portion 180 is disposed on each insulating frame 120, so that the mounting efficiency of the interposer 170 can be further improved, the mounting stability of the interposer 170 can be ensured, and the interposer 170 is further prevented from moving axially.

As shown in fig. 1, 2, 3 and 5, in some embodiments, optionally, each insulating frame 120 is further provided with a mounting surface 124, and a plurality of binding posts 160 are spaced apart on the mounting surface 124; at least one of the insulating frames 120 is further provided with a wire passing groove 190, the wire passing groove 190 being located radially outside the plurality of wire discharging grooves 121 and communicating with the plurality of wire discharging grooves 121, the wire passing groove 190 extending onto the mounting surface 124 in the axial direction of the stator core 110.

In this embodiment, it is defined that at least one of the insulating frames 120 is further provided with a wire passing groove 190, specifically, the wire passing groove 190 is located outside the plurality of wire passing grooves 121 in the radial direction of the stator core 110, and the wire passing groove 190 communicates with the plurality of wire passing grooves 121.

Each insulating holder 120 is provided with a mounting surface 124, and a plurality of posts 160 are provided on the mounting surface 124 at intervals, and the wire passing grooves 190 extend axially to the mounting surface 124, that is, the wire passing grooves 190 communicate with the mounting surface 124.

Specifically, when winding the winding 130, the head end of the winding 130 is first wound on one of the binding posts 160, and after a certain number of turns are wound, the winding 130 passes through the wire slot 190 to smoothly transition into the plurality of wire-arranging slots 121, so that the winding 130 is wound in the plurality of wire-arranging slots 121.

By providing the wire passing groove 190, the end portion of the winding 130 is more orderly and compact, so that the winding uniformity during mass production of the stator 100 can be improved while the number of turns of the winding 130 is increased, the slot filling rate is increased, and the power density of the motor with the stator 100 is further improved.

It will be appreciated that after the last winding of the winding 130 is completed, the tail end of the winding 130 is wound on the other terminal 160, thereby achieving the end-to-end conduction of the winding 130.

In addition, each winding 130 is matched with the plurality of wire-arranging grooves 121 on the insulating frame 120 where the winding 130 is located, that is, the wire diameter of the winding 130 is matched with the plurality of wire-arranging grooves 121, so that after the winding 130 is wound on the plurality of wire-arranging grooves 121, the winding is tightly and orderly arranged, the number of turns wound on the winding 130 can be increased under the condition of the same space, the slot filling rate is improved, the power density of the motor with the stator 100 is further improved, and the motor efficiency is improved.

Along the axial direction of the stator core 110, at least one winding slot 121 is arranged in a penetrating manner, that is, at least one winding slot 121 is arranged in an axial penetrating manner, so that after the winding 130 is wound on the plurality of winding slots 121, winding wires can be arranged more tightly and tidily, the slot filling rate and the power density of the motor are further improved, and the motor efficiency is improved.

Alternatively, the limiting portion 180 is disposed on the mounting surface 124, and the limiting portion 180 is spaced apart from the post 160.

Optionally, a wire passing groove 190 is provided on each insulating frame 120, so that each winding 130 can be smoothly transited into the wire passing groove 121 when being wound on the insulating frame 120, and the end part of each winding 130 is ensured to be orderly and compact.

As shown in fig. 3, in some embodiments, optionally, at least one insulating frame 120 is further provided with a transition surface 125, the transition surface 125 being located radially inward of the wire passing groove 190, the transition surface 125 including a first end 210 and a second end 220 circumferentially opposite, the first end 210 being disposed closer to the wire passing groove 190 than the second end 220; wherein, the distance between the first end 210 and the central axis of the stator core 110 is smaller than the distance between the second end 220 and the central axis of the stator core 110.

In this embodiment, it is defined that at least one of the insulating frames 120 is further provided with a transition surface 125, specifically, the transition surface 125 is located radially inward of the through-slot 190, that is, in the radial direction of the stator core 110, the transition surface 125 is located inward of the through-slot 190, that is, the through-slot 190 is located outward of the transition surface 125.

Along the circumferential direction of the stator core 110, the transition surface 125 includes a first end 210 and a second end 220 that are opposite, wherein the first end 210 of the transition surface 125 is disposed closer to the wire passing slot 190 than the second end 220 of the transition surface 125, that is, one end of the transition surface 125 is disposed closer to the wire passing slot 190.

The distance between the first end 210 of the transition surface 125 and the central axis of the stator core 110 is smaller than the distance between the second end 220 of the transition surface 125 and the central axis of the stator core 110, that is, the transition surface 125 is inclined toward the side where the wire passing slot 190 is located.

Specifically, when winding the winding 130, the head end of the winding 130 is wound on one of the binding posts 160, after a certain number of turns are wound, the winding 130 passes through the wire slot 190 to smoothly transition into the first wire slot 121 of the plurality of wire slots 121, after one turn is wound in the first wire slot 121, the winding is matched with the transition surface 125, that is, the winding is smoothly transitioned into the second wire slot 121 of the plurality of wire slots 121 along the transition surface 125, and the next wires can be sequentially arranged, so that the uniformity and tightness of the wires at the end of the winding 130 are further ensured, the number of turns wound on the winding 130 is increased, the slot filling rate is increased, and the power density of the motor with the stator 100 is further increased, and meanwhile, the uniformity of the wires in mass production of the stator 100 is improved.

It will be appreciated that after the last winding of the winding 130 is completed, the tail end of the winding 130 is wound on the other terminal 160, thereby achieving the end-to-end conduction of the winding 130.

In addition, each winding 130 is matched with the plurality of wire-arranging grooves 121 on the insulating frame 120 where the winding 130 is located, that is, the wire diameter of the winding 130 is matched with the plurality of wire-arranging grooves 121, so that after the winding 130 is wound on the plurality of wire-arranging grooves 121, the winding is tightly and orderly arranged, the number of turns wound on the winding 130 can be increased under the condition of the same space, the slot filling rate is improved, the power density of the motor with the stator 100 is further improved, and the motor efficiency is improved.

Along the axial direction of the stator core 110, at least one winding slot 121 is arranged in a penetrating manner, that is, at least one winding slot 121 is arranged in an axial penetrating manner, so that after the winding 130 is wound on the plurality of winding slots 121, winding wires can be arranged more tightly and tidily, the slot filling rate and the power density of the motor are further improved, and the motor efficiency is improved.

As shown in fig. 2 and 8, in some embodiments, optionally, at least one of the insulating holders 120 is provided with a chamfer 230 at an end facing away from the plurality of posts 160.

In this embodiment, at least one end of the insulating holder 120 that faces away from the plurality of posts 160 is defined with a chamfer 230. It is understood that, when the stator yoke 111 is assembled, the side of the insulating frame 120 provided with the chamfer 230 passes through the stator yoke 111, thereby assembling the stator yoke 111 on the stator teeth 112.

By providing the chamfer 230 on the side of the at least one insulating frame 120 facing away from the plurality of binding posts 160, the abrasion of the insulating frame 120 can be effectively reduced in the process of assembling the stator yoke 111, namely, the damage of the insulating frame 120 by the stator yoke 111 is avoided, the service life of the insulating frame 120 is prolonged, and the reliable assembly of the stator yoke 111 and the stator teeth 112 is ensured.

Optionally, a chamfer 230 is provided at an end of each insulator bracket 120 facing away from the plurality of posts 160 to further reduce wear of the insulator bracket 120, extend the service life of the insulator bracket 120, and ensure reliable assembly of the stator yoke 111 with the stator teeth 112.

Optionally, the at least one insulating frame 120 is symmetrically provided with chamfers 230 on both sides.

As shown in fig. 1, 2, 3, 5 and 8, in some embodiments, optionally, a positioning slot 240 is further disposed on the outer side of at least one insulating frame 120 along the radial direction of the stator core 110; the adapter plate 170 is provided with at least one positioning hole 250, and each positioning hole 250 is opposite to one positioning groove 240 in the axial direction of the stator core 110.

In this embodiment, a positioning groove 240 is defined along the radial direction of the stator core 110, and it is understood that, when the stator teeth 112 and the stator yoke 111 are sleeved, the positioning groove 240 may be matched with a fixture, so that the relative positions of the stator teeth 112 and the stator yoke 111 can be ensured, the stator yoke 111 and the stator teeth 112 can be assembled quickly and reliably, and the assembly efficiency of the stator 100 is improved.

In addition, after the stator 100 is assembled, when the stator 100 is integrally assembled on the casing, the fixture can be matched with the positioning groove 240, so that the relative position between the plug interface on the adapter plate 170 and the plug connector on the casing is ensured, the quick plug connection is realized, and the smooth installation of the plug connector is ensured.

In addition, in the process of installing the adapter plate 170, the positioning groove 240 can be matched with the positioning hole 250 on the adapter plate 170 to realize the installation and positioning of the adapter plate 170, so that the installation efficiency of the adapter plate 170 is improved, the overall installation efficiency of the stator 100 is further improved, and the assembly cost of the stator 100 is reduced.

Optionally, a positioning groove 240 is provided on the radially outer side of each insulating frame 120 to improve the positioning effect.

The adapter plate 170 is provided with at least one positioning hole 250, specifically, along the axial direction of the stator core 110, the positioning hole 250 is opposite to the positioning groove 240, that is, the positioning groove 240 is matched with the positioning hole 250 on the adapter plate 170 to realize the installation and positioning of the adapter plate 170, so that the installation efficiency of the adapter plate 170 is improved, the overall installation efficiency of the stator 100 is further improved, and the assembly cost of the stator 100 is reduced.

Optionally, a plurality of positioning holes 250 are provided on the adapter plate 170, the plurality of positioning holes 250 are arranged at intervals, and each positioning hole 250 is axially opposite to one positioning groove 240, so that rapid installation and positioning of the adapter plate 170 are realized, the installation efficiency of the adapter plate 170 is further improved, the overall installation efficiency of the stator 100 is further improved, and the assembly cost of the stator 100 is reduced.

According to a second aspect of the present utility model, a servo motor is provided, which includes the stator 100 provided in any of the above embodiments, so that all the beneficial technical effects of the stator 100 are provided, and are not described herein.

Specifically, the stator 100 includes a stator core 110, a plurality of insulation frames 120, and a plurality of windings 130, and specifically, the stator core 110 includes a stator yoke 111 and a plurality of stator teeth 112, the stator yoke 111 being disposed radially outward of the plurality of stator teeth 112, that is, the stator core 110 is a tooth-yoke separated stator core 110.

In the circumferential direction of the stator core 110, a plurality of stator teeth 112 are connected, that is, the tooth-yoke separated stator core 110 has no slot, so that cogging torque can be greatly reduced.

The insulating holders 120 are provided on the stator teeth 112 in a one-to-one correspondence, that is, one insulating holder 120 is provided on each stator tooth 112. A plurality of wire-arranging grooves 121 are provided on a side of each insulating frame 120 facing away from the stator teeth 112, the plurality of wire-arranging grooves 121 are arranged in a radial direction of the stator core 110, and each winding 130 is wound in the plurality of wire-arranging grooves 121 on one insulating frame 120.

It will be appreciated that when the stator 100 is assembled, the windings 130 are wound on the insulating frames 120 in a one-to-one correspondence, and when the insulating frames 120 are assembled on the stator teeth 112, that is, the insulating frames 120 are integral insulating frames, compared with the prior art that the split iron core structure is wound on a single tooth, the integral insulating frames are adopted for the plug-in frames or the spliced frames, and the winding is prevented from being loosened after the winding.

In the description of the present specification, the terms "connected," "mounted," "secured," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (12)

1. A stator, comprising:

The stator iron core comprises a stator yoke and a plurality of stator teeth connected in the circumferential direction, and the stator yoke is arranged on the radial outer sides of the plurality of stator teeth;

The plurality of insulating frames are arranged on the plurality of stator teeth in a one-to-one correspondence manner, one side of each insulating frame, which is away from the stator teeth, is provided with a plurality of wire-arranging grooves which are arranged along the radial direction of the stator core, and at least one wire-arranging groove is arranged in a penetrating manner along the axial direction of the stator core;

And each winding is wound in a plurality of wire-arranging grooves on one insulating frame and is matched with the wire-arranging grooves.

2. The stator according to claim 1, wherein a depth h of at least one of the wire-discharge grooves and a wire diameter d of the winding in a circumferential direction of the stator core satisfy h being equal to or greater than 0.3d.

3. The stator of claim 1, wherein each of the insulating frames further comprises:

The insulation part is provided with mounting holes, each stator tooth penetrates through one mounting hole, and the plurality of wire-arranging grooves are formed in one side, away from the mounting holes, of the insulation part;

Wherein, along the circumferential direction of the stator core, the minimum value b of the thickness of the insulating part satisfies b less than or equal to 0.3mm.

4. A stator according to claim 3, further comprising:

And the compressing piece is arranged in the mounting hole and props against the stator teeth.

5. The stator of claim 4, wherein the compression member includes a plurality of ribs within the mounting bore, the plurality of ribs being spaced apart;

At least a portion of each of the ribs extends in a radial direction of the stator core and within the mounting hole, and a plurality of the ribs are abutted against the stator teeth.

6. The stator as claimed in claim 4 further comprising:

And the limiting boss is arranged in the mounting hole and is arranged at intervals with the pressing piece, and is propped against the stator teeth along the axial direction of the stator core.

7. The stator according to any one of claims 1 to 6, characterized by further comprising:

The insulation frame is provided with a plurality of binding posts, and the head end and the tail end of each winding are respectively wound on the binding posts;

And the adapter plate is connected with the binding posts.

8. The stator according to claim 7, wherein at least one of the insulating frames is further provided with a limiting portion, the limiting portion is disposed at intervals with the plurality of the binding posts, and the limiting portion abuts against the adapter plate in the axial direction of the stator core.

9. The stator according to claim 7, wherein each of the insulating frames is further provided with a mounting surface on which a plurality of the posts are spaced apart;

At least one insulating frame is also provided with a wire passing groove, the wire passing groove is positioned at the radial outer sides of the wire discharging grooves and communicated with the wire discharging grooves, and the wire passing groove extends to the mounting surface along the axial direction of the stator core.

10. The stator of claim 9, wherein at least one of the insulating frames is further provided with a transition surface radially inward of the wire passing slot, the transition surface including circumferentially opposite first and second ends, the first end being disposed closer to the wire passing slot than the second end;

The distance between the first end and the central axis of the stator core is smaller than the distance between the second end and the central axis of the stator core.

11. The stator according to claim 7, wherein a positioning groove is further provided on an outer side of at least one of the insulating frames in a radial direction of the stator core;

the adapter plate is provided with at least one positioning hole, and each positioning hole is opposite to one positioning groove along the axial direction of the stator core.

12. A servo motor comprising a stator as claimed in any one of claims 1 to 11.