CN218102745U - Motor iron core and motor - Google Patents

Abstract

The utility model relates to the technical field of motors, and provides a motor iron core and a motor, wherein the motor iron core comprises an iron core body, the iron core body is arranged in an annular shape, and the iron core body comprises a plurality of block iron cores which are assembled with each other; the two opposite sides of each block iron core are provided with binding surfaces, and the adjacent block iron cores are spliced through the binding surfaces; the connecting piece is arranged outside the iron core body and used for clamping each block iron core. Through the mode, the blocking iron core is assembled without grooving the end part and arranging the convex edge for matching and assembling, but a completely-laminating and assembling mode is selected, so that the automatic assembling of the blocking iron core can be realized, the production efficiency of the motor is improved, the production cost is reduced, and the electromagnetic performance of the motor is also favorably improved.

Description

Motor iron core and motor

Technical Field

The utility model relates to a motor core technical field especially relates to a motor core and motor.

Background

In the field of motors, in order to improve the performance and the production efficiency of the motors, the iron core structure of the block type motor is more and more widely used. Traditional piecemeal iron core is assembling the in-process, generally selects groove and bead cooperation to assemble, and there is fit clearance groove and bead cooperation, has adverse effect to motor electromagnetic property, and is unfavorable for automatic piece together into the molding.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a motor core and motor for there is the fit clearance in groove and the bead cooperation among the solution prior art, has adverse effect and is unfavorable for the technical problem of automatic piecing together molding to motor electromagnetic performance.

An embodiment of the utility model provides a motor core, include:

the iron core body is annularly arranged and comprises a plurality of split iron cores which are spliced with one another;

the two opposite sides of the block iron core are provided with binding surfaces, and the adjacent block iron cores are spliced through the binding surfaces;

the connecting piece is located the iron core body is outer and be used for to each the piecemeal iron core carries out the joint.

According to the motor iron core of one embodiment of the utility model, the block iron core comprises an iron core tooth part and an iron core yoke part, and two opposite side surfaces of the iron core yoke part are the binding surfaces;

and adjacent segmented iron cores are spliced to form iron core slots, and the iron core slots are positioned between the iron core tooth parts and the iron core yoke parts.

According to the utility model discloses a motor core, binding face is the plane.

According to the motor iron core provided by the utility model, the connecting pieces are connecting rings, and the end surfaces of the connecting rings are provided with a plurality of connecting columns;

each block iron core is provided with a mounting hole connected with the connecting column in a clamped mode.

According to the motor iron core of one embodiment of the utility model, the connecting piece is arranged at the end part of the iron core body;

the axial direction of the mounting hole is the same as the axial direction of the blocking iron core.

According to the utility model discloses a motor core, the spliced pole with the connection can be dismantled to the go-between.

According to the utility model discloses a motor core, the connecting piece is the shell, the shell cover is located iron core body periphery side and with iron core body is connected.

According to the utility model discloses a motor core of an embodiment, the blocking iron core includes lateral surface and medial surface, a plurality of the lateral surface of blocking iron core assemble and form the outer peripheral side of iron core body, a plurality of the medial surface of blocking iron core assemble and form the inner peripheral side of iron core body;

a positioning groove is formed in the outer side face of each block iron core, and the length extending direction of each positioning groove is consistent with the axial direction of the iron core body;

the inner side of the shell is provided with a plurality of positioning columns matched with the positioning grooves along the axial direction of the shell.

According to the utility model discloses a motor core, the piecemeal iron core is silicon steel sheet iron core.

The embodiment of the utility model provides a still provide a motor, including foretell motor core.

The embodiment of the utility model provides a motor core, piecemeal iron core need not to slot at the tip and set up the bead cooperation and assemble at the assembly in-process, but select the mode of laminating completely and assembling, can realize automatic piecemeal iron core of assembling from this, improve motor production efficiency and reduction in production cost, also are favorable to promoting the electromagnetic property of motor.

The embodiment of the utility model provides a motor includes foretell motor core, possesses all beneficial effect of above-mentioned motor core from this, does not do here and give unnecessary detail.

Drawings

In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the segmented iron core of the present invention;

fig. 2 is a schematic structural diagram of a motor core according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a connecting member according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a second embodiment of a segmented core;

fig. 5 is a schematic structural view of a motor core formed by assembling the segmented cores shown in fig. 4;

fig. 6 is a schematic structural diagram of a housing according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a third embodiment of a segmented core;

fig. 8 is a schematic structural view of a motor core formed by assembling the segmented cores shown in fig. 7;

fig. 9 is a schematic structural view of a fourth embodiment of a segmented core;

fig. 10 is a schematic structural view of a motor core formed by assembling the segmented cores shown in fig. 9.

Reference numerals:

10. an iron core body; 110. a peripheral side surface; 120. an inner peripheral side surface;

20. partitioning the iron core; 210. a binding face; 220. mounting holes; 230. an iron core groove; 240. an outer side surface; 250. an inner side surface; 260. an iron core tooth part; 270. an iron core yoke portion;

30. a connecting member; 310. connecting columns.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

Referring to fig. 1 to 10, an embodiment of the present invention provides a motor iron core, which includes an iron core body 10 and a connecting member 30, wherein the iron core body 10 is annularly disposed, and the iron core body 10 includes a plurality of segmented iron cores 20 assembled with each other; the two opposite sides of the segmented iron core 20 are provided with binding surfaces 210, and the adjacent segmented iron cores 20 are spliced through the binding surfaces 210; the connecting member 30 is disposed outside the core body 10 and is used for clamping each of the segmented cores 20.

Specifically, the segmented iron core 20 includes an iron core tooth portion 260 and an iron core yoke portion 270, two opposite side surfaces of the iron core yoke portion 270 of the adjacent segmented iron cores 20 are fitting surfaces 210, and the fitting surfaces 210 are used for seamlessly assembling the segmented iron cores 20.

Further, the abutting surface 210 is a plane. So, piecemeal iron core 20 need not to open a slot and set up the bead cooperation and assemble on iron core tooth portion 260 and iron core yoke portion 270 at the in-process of assembling, but selects the mode of laminating completely and assembling, can realize automatic piecemeal iron core 20 of assembling from this, improves motor production efficiency and reduction in production cost, because seamless the assembling between the piecemeal iron core 20, so be favorable to promoting the electromagnetic property of motor.

To piecemeal iron core 20, the embodiment of the utility model provides a can singly produce, then assemble, assemble accomplish after carry out the joint through connecting piece 30 can, improved the production of piecemeal iron core 20 and the automation efficiency of assembling.

When adjacent piecing iron core 20 is assembled, only adopt the contact between face and the face, rather than adopting the mode of assembling of bead and recess, improved the efficiency that piecing iron core 20 was assembled in automation from this, and the interval of assembling that produces when can not having bead and groove concatenation, reduce the magnetic resistance and be favorable to promoting the electromagnetic property of motor.

Referring to fig. 1 to 3, in some embodiments of the present invention, the connecting member 30 is a connecting ring, and the end surface of the connecting ring is provided with a plurality of connecting posts 310; each segmented iron core 20 is provided with a mounting hole 220 clamped with the connecting column 310.

When the assembly of the segmented iron cores 20 is completed, the connecting posts 310 on the connecting rings are sequentially inserted into the mounting holes 220 to assemble and position the segmented iron cores 20, so that the relative displacement between the segmented iron cores 20 is avoided. For the matching of the cross-sectional shape of the connection column 310 with the mounting hole 220, when the cross-sectional shape of the mounting hole 220 is rectangular, polygonal or circular, the cross-sectional shape of the connection column 310 is also rectangular, polygonal or circular, and the like, which is not limited herein.

Specifically, the connection member 30 is mounted to an end of the core body 10; the axial direction of the mounting hole 220 is the same as the axial direction of the segmented core 20.

That is, the mounting hole 220 is opened inward through the end face of the block iron core 20, when the connecting member 30 is matched with the block iron core 20, only the mounting hole 220 needs to be aligned, the mounting hole 220 plays a role in guiding and mounting, and the mounting efficiency of the connecting member 30 and the block iron core 20 is improved conveniently.

For the connection ring, the connection post 310 is detachably connected to the connection ring; the connecting column 310 is a stud, and a hole site matched with the screw thread of the stud is formed on the connecting ring, that is, the connecting column 310 and the connecting ring can be assembled in advance and then connected with the segmented iron core 20 after the assembly is completed.

In some other embodiments, the connecting column 310 and the connecting ring may be integrally formed, and are not limited herein.

In some embodiments of the present invention, adjacent segmented cores 20 are assembled to form core slots 230, and the core slots 230 are located between the core teeth 260 and the core yoke 270.

For the core slots 230, after the adjacent segmented cores 20 are matched, the core slots 230 are correspondingly assembled to form a slot or a notch for placing a magnetic shoe.

Specifically, reference may be made to fig. 1, 4, 7 and 9, where fig. 1 shows a segmented core 20 of a rotor for an inner rotor motor structure, and a core slot 230 is used for placing a magnetic shoe. Fig. 4 shows a segmented core 20 of a stator core for an inner rotor motor structure. Fig. 7 shows a segmented core 20 of a stator for an outer rotor motor structure, in which a core slot 230 is used for mounting a coil. Fig. 9 shows a segmented core 20 of a rotor for an outer rotor motor structure, in which a core slot 230 is used for placing a magnetic shoe. That is, the connection ring mounting mode is adopted for assembling the segmented iron core 20 in the above embodiment.

In some embodiments of the present invention, referring to fig. 4 to 6, the connecting member 30 is a casing, and the casing is disposed on the outer periphery of the core body 10 and connected to the core body 10.

That is, the position of the segmented core 20 is defined by the outer case provided outside the core body 10.

Specifically, the segmented core 20 includes an outer side 240 and an inner side 250, the outer side 240 of the plurality of segmented cores 20 are assembled to form the outer peripheral side 110 of the core body 10, and the inner side 250 of the plurality of segmented cores 20 are assembled to form the inner peripheral side 120 of the core body 10.

For the housing, the housing may be directly sleeved outside the segmented cores 20 to connect the plurality of segmented cores 20. A positioning groove may also be formed in the outer side 240 of each segmented iron core 20, and the length extending direction of the positioning groove is consistent with the axial direction of the iron core body 10; the inner side of the shell is provided with a plurality of positioning columns matched with the positioning grooves along the axial direction.

It should be noted that, the inner end surface of the outer shell may not be provided with a positioning column, and the outer peripheral side of the segmented iron core 20 may also be provided with a positioning groove, but the outer shell is directly sleeved on the outer side of the segmented iron core 20, and the positioning column and the positioning groove may also be respectively provided to connect the outer shell and the segmented iron core, which is not limited herein.

Specifically, the connection 30 may select a connection ring for the rotor structure of the inner rotor motor of fig. 2 and the stator structure of the outer rotor motor of fig. 8. While for the stator structure of the inner rotor motor of fig. 5 and the rotor structure of the outer rotor motor of fig. 10, the connecting member 30 may be an alternative to the housing.

In some embodiments of the present invention, for the iron core blocks 20, the iron core blocks 20 may be silicon steel sheet iron cores. That is, the material of the segmented core 20 is silicon steel sheet. In other embodiments, the segmented core 20 may be formed by pure iron machining or powder metallurgy, and is not limited herein.

The embodiment of the utility model provides a still provide a protection motor, the motor can be inner rotor motor or external rotor motor, and foretell piecemeal iron core 20 can also be for forming the motor core of external rotor motor for the motor core that forms inner rotor motor, does not do the injecing here.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. An electric machine core, comprising:

the iron core body is annularly arranged and comprises a plurality of split iron cores which are spliced with one another;

the two opposite sides of the block iron core are provided with binding surfaces, and the adjacent block iron cores are spliced through the binding surfaces;

and the connecting piece is arranged outside the iron core body and used for clamping each of the block iron cores.

2. The motor core of claim 1, wherein the segmented core comprises a core tooth portion and a core yoke portion, wherein opposite sides of the core yoke portion are the abutment surfaces;

and the iron core slots are positioned between the iron core tooth parts and the iron core yoke parts.

3. The motor core of claim 2 wherein the abutting face is planar.

4. The motor iron core according to claim 1, wherein the connecting piece is a connecting ring, and one end face of the connecting ring is provided with a plurality of connecting columns;

each blocking iron core is provided with a mounting hole clamped with the connecting column.

5. The motor core of claim 4 wherein the connecting members are mounted to ends of the core body;

the axial direction of the mounting hole is the same as the axial direction of the blocking iron core.

6. The motor core of claim 4 wherein the connection posts are removably connected to the connection rings.

7. The motor core according to claim 1, wherein the connecting member is a housing, and the housing is sleeved on an outer peripheral side of the core body and connected to the core body.

8. The motor core of claim 7 wherein the segmented core includes outer and inner side surfaces, the outer side surfaces of the plurality of segmented cores being assembled to form an outer peripheral side surface of the core body, the inner side surfaces of the plurality of segmented cores being assembled to form an inner peripheral side surface of the core body.

9. The motor core according to any one of claims 1 to 8, wherein the segmented core is a silicon steel sheet core.

10. An electrical machine comprising an electrical machine core as claimed in any one of claims 1 to 9.

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