CN218040958U - Motor and rotor thereof - Google Patents
Motor and rotor thereof Download PDFInfo
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- CN218040958U CN218040958U CN202222102105.0U CN202222102105U CN218040958U CN 218040958 U CN218040958 U CN 218040958U CN 202222102105 U CN202222102105 U CN 202222102105U CN 218040958 U CN218040958 U CN 218040958U
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Abstract
The utility model discloses a rotor of motor, including outer iron core, connect in interior iron core, the suit in the outer iron core centre bore pivot in the interior iron core centre bore, connect in magnetic shoe filler in the outer iron core end face mounting groove, the internal diameter of outer iron core with the clearance has between the external diameter of interior iron core, interior iron core with pivot axle as an organic whole, integrative axle suit in the centre bore of outer iron core, the clearance set up in the internal diameter of outer iron core with between the external diameter of integrative axle, outer iron core with it has insulating material or shock-absorbing material to fill in the interior iron core clearance. The rotor effectively solves the problems that the existing rotor has noise, poor rotor precision and poor matching performance, and influences user experience and the like. The utility model also discloses a motor of including above-mentioned rotor, its beneficial effect is the same with the beneficial effect of rotor.
Description
Technical Field
The utility model relates to the technical field of electric motor, especially, relate to a rotor. Furthermore, the utility model discloses still relate to a motor including above-mentioned rotor.
Background
With the national goals of "carbon peaking" and "carbon neutralization," improving energy efficiency is a serious challenge facing various electricity-related industries. The motor is used as a power source of electric appliances and other various machines, is widely applied to various industries and is a power consumer. With the coming of the new energy efficiency standard of the national motor, the transformation of the motor industry is upgraded to be a necessary trend. For an air conditioner motor, compared with a surface-mounted rotor (SPM) motor, the embedded rotor structure motor (IPM) motor has the advantages that under the same load, the current is lower, the higher energy efficiency can be achieved, and meanwhile, the energy-saving benefit is created for users.
In recent years, various air conditioner motor manufacturers invest in the development of IPM structure motors, but the IPM structure motors in the current market have the following defects and shortcomings:
most of the existing motor IPM rotors are formed by connecting an inner core and an outer core, please refer to fig. 1, where fig. 1 is a schematic diagram of a typical rotor in the prior art, which cannot realize a damping structure, has a noise problem and poor matching, and affects user experience;
in addition, the connection of the inner iron core and the outer iron core causes large electrostatic capacity of a rotor and large voltage of a bearing shaft, so that the bearing is damaged, and the service life of the motor is shortened;
in addition, the outer rotor core is in a block type, please refer to fig. 2, fig. 2 is a schematic diagram of a block type punching sheet, and a rotor assembly is formed by assembling a plurality of pieces, so that the production operation is complex, the production efficiency is low, and the precision of the manufactured rotor is poor and the noise problem is prominent.
In summary, how to effectively solve the problems of the existing rotor, such as noise, poor rotor precision, poor matching, and influence on user experience, is a problem that needs to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a rotor, which effectively solves the problems of the prior rotor, such as noise, poor rotor precision, poor matching, influence on user experience, and the like; another object of the present invention is to provide an electric machine including the above rotor, which has the same advantages as the rotor.
In order to solve the technical problem, the utility model provides a following technical scheme:
a rotor of a motor comprises an outer iron core, an inner iron core connected to the center hole of the outer iron core, a rotating shaft sleeved in the center hole of the inner iron core, and a magnetic shoe filling material connected to the end face mounting groove of the outer iron core, wherein a gap is formed between the inner diameter of the outer iron core and the outer diameter of the inner iron core, the inner iron core and the rotating shaft are integrated into a whole, the integrated shaft is sleeved in the center hole of the outer iron core, the gap is formed between the inner diameter of the outer iron core and the outer diameter of the integrated shaft, and an insulating material or a damping material is filled in the gap between the outer iron core and the inner iron core.
Optionally, a groove is formed in a joint surface of the integrated shaft and the insulating material or the shock absorbing material.
Optionally, the number of the grooves is multiple, and the multiple grooves are parallel.
Optionally, the magnetic shoe filling material is injection molded in the mounting groove of the outer core through the insulating material.
Optionally, the insulating material or the shock absorbing material is a shock absorbing elastic glue.
The invention further provides a motor which comprises a stator and a rotor, wherein the stator is arranged in an end face installation groove of an outer iron core of the rotor, and the rotor is specifically any one of the rotors.
The utility model provides a rotor, including outer iron core, inner core, pivot, magnetic shoe filler material, insulating material or shock-absorbing material, the magnetic shoe filler material is connected in the mounting groove of outer iron core terminal surface, and the motor produces invariable magnetic potential source with magnetic shoe filler material.
Outer iron core and interior iron core all have the centre bore, and interior iron core is connected in the centre bore of outer iron core, and the pivot is connected in the centre bore of interior iron core, and pivot, interior iron core, outer iron core suit are connected. Optionally, the central axes of the rotating shaft, the inner iron core and the outer iron core are overlapped, so that the rotating stability is ensured.
Interior iron core and pivot axle are integrative axle, and also be that interior iron core is replaced by filler material, with pivot integral type injection moulding, an organic whole axle lug connection has the clearance between the internal diameter of outer iron core and the external diameter of interior iron core in the centre bore of outer iron core promptly, clearance sets up between the internal diameter of outer iron core and the external diameter of integrative axle, and insulating material or shock-absorbing material fill in the clearance of outer iron core and integrative axle. The rotor of this structure, save interior iron core, simple structure easily connects reduce cost.
The insulating material or the shock absorption material is filled in the gap between the outer iron core and the inner iron core, the insulating material or the shock absorption material is shock absorption elastic glue, the insulating material comprises PPT, nylon and other materials, and the cost is low; the damping material comprises damping and noise reduction materials such as rubber and the like, so that the motor noise can be effectively inhibited. It should be noted that the damping material has better damping and noise reducing performance than the insulating material, and is preferably selected for motors with higher damping and noise reducing requirements.
The rotor provided by the utility model has the advantages that the inner iron core is separated from the outer iron core, the space for damping elastic glue is reserved for the damping rotor, the damping is realized, the motor noise can be effectively inhibited, the matching performance is better, and the use experience of a user is improved; through the separated inner iron core and outer iron core structure, the integral capacitance of the rotor is reduced, the shaft voltage can be effectively inhibited, the bearing is not easy to damage, and the service life of the motor is prolonged.
The utility model also provides a motor, the stator is installed in the terminal surface mounting groove of the outer iron core of rotor, and this rotor specifically is any kind of rotor of the aforesaid. Since the above-mentioned rotor has the above-mentioned technical effects, the motor having the rotor should also have corresponding technical effects.
Drawings
In order to more 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, it is obvious that the drawings in the description below are only 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 view of a typical prior art rotor;
FIG. 2 is a schematic view of a segmented sheet;
FIG. 3 is a schematic view of a plurality of connecting punching sheets with 2 teeth connected;
FIG. 4 is a schematic view of a plurality of connecting stamped steel sheets with 5 teeth connected;
FIG. 5 is a schematic view of an integral punch;
FIG. 6 is a schematic structural diagram of an outer core formed by combining an integral punching sheet and a segmented punching sheet;
FIG. 7 is a schematic structural diagram of an outer core formed by combining a plurality of connecting punching sheets and segmented punching sheets;
FIG. 8 is another schematic view of an outer core structure formed by combining a plurality of connecting punching sheets and segmented punching sheets;
fig. 9 is a schematic structural diagram of a motor according to an embodiment of the present invention.
The drawings are numbered as follows:
1-outer iron core, 2-inner iron core, 3-rotating shaft, 4-gap, 5-magnetic shoe filling material and 6-stator.
Detailed Description
The utility model has the core that the rotor is provided, which effectively solves the problems of the existing rotor, such as noise problem, poor rotor precision, poor matching, influence on user experience, etc.; another object of the utility model is to provide an electric machine including above-mentioned rotor, its beneficial effect is the same with the beneficial effect of rotor.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 3 to 9, fig. 3 is a schematic view of a plurality of connecting punching sheets with 2 teeth connected; FIG. 4 is a schematic view of a plurality of connecting stamped steel sheets with 5 teeth connected; FIG. 5 is a schematic view of an integral punch; FIG. 6 is a schematic structural diagram of an outer core formed by combining an integral punching sheet and a segmented punching sheet; FIG. 7 is a schematic structural diagram of an outer core formed by combining a plurality of connecting punching sheets and segmented punching sheets; FIG. 8 is a schematic structural diagram of another outer core formed by combining a plurality of connecting punching sheets and segmented punching sheets; fig. 9 is a schematic structural diagram of a motor according to an embodiment of the present invention.
In a specific embodiment, the utility model provides a rotor of motor, including outer iron core 1, connect the interior iron core 2 in outer iron core 1 centre bore, the pivot 3 of suit in 2 centre bores of interior iron core, connect the magnetic shoe filler material 5 in 1 end face mounting groove of outer iron core, clearance 4 has between the internal diameter of outer iron core 1 and the external diameter of interior iron core 2, interior iron core 2 and pivot 3 are integrative body shafts, integrative axle suit is in the centre bore of outer iron core 1, clearance 4 sets up between the internal diameter of outer iron core 1 and the external diameter of integrative body shaft, it has insulating material or shock-absorbing material to fill in outer iron core 1 and the 2 clearance 4 of interior iron core.
In the above structure, the rotor is applied to the motor, the motor comprises the stator 6 and the rotor, and the stator 6 is installed in the end face installation groove of the outer iron core 1 of the rotor.
The rotor includes outer iron core 1, interior iron core 2, pivot 3, magnetic shoe filler material 5, insulating material or shock-absorbing material, and magnetic shoe filler material 5 is connected in the mounting groove of outer iron core 1 terminal surface, and the motor produces the invariable magnetic potential source with magnetic shoe filler material 5.
Insulating material or shock-absorbing material fill in outer iron core 1 and interior iron core 2's clearance 4, and insulating material or shock-absorbing material are the shock attenuation elastic glue, simple structure easily fills. The insulating material comprises PPT, nylon and other materials, so that the cost is low; the damping material comprises damping and noise reduction materials such as rubber and the like, so that the motor noise can be effectively inhibited. It should be noted that the damping material has better damping and noise reducing performance than the insulating material, and the damping material is preferably selected for the motor with higher requirements on damping and noise reduction.
The rotor provided by the utility model, the inner iron core 2 is separated from the outer iron core 1, and the space of the damping elastic glue is reserved for the damping rotor, so that the damping is realized, the motor noise can be effectively inhibited, the matching performance is better, and the use experience of users is improved; through the separated structure of the inner iron core 2 and the outer iron core 1, the whole capacitance of the rotor is reduced, the shaft voltage can be effectively inhibited, the bearing is not easy to damage, and the service life of the motor is prolonged.
The above-mentioned rotor is only a preferred solution, and is not particularly limited thereto, and on the basis of this, it can be specifically adjusted according to actual needs, so as to obtain different embodiments,
on the basis of the specific embodiment, the groove is formed in the joint surface of the integrated shaft and the insulating material or the shock-absorbing material, when the insulating material or the shock-absorbing material is filled in the gap 4 between the outer iron core 1 and the integrated shaft, the insulating material or the shock-absorbing material enters the groove of the integrated shaft, the contact area between the insulating material or the shock-absorbing material and the integrated shaft is increased, the connection strength is high, and the safety and the reliability are higher.
On the basis of each specific embodiment, the number of the grooves can be one, two or even multiple, when the number of the grooves is more than or equal to 2, the multiple grooves are filled with insulating materials or shock-absorbing materials, the contact area between the insulating materials or the shock-absorbing materials and the integrated shaft is increased, and the connection strength is high; and when the insulating material or the damping material in one groove is damaged, the insulating material or the damping material in other grooves is not influenced, and the better damping and noise reduction effects are ensured.
It should be noted that the insulating materials or the damping materials in different grooves can be the same, and the insulating materials or the damping materials are convenient to add; insulating material or shock-absorbing material in different recesses also can be different, and different insulating material or shock-absorbing material adapt to different operating modes, improve comprehensive vibration/noise reduction effect.
Optionally, a plurality of grooves are parallel, a plurality of insulating materials or damping materials are parallel, the contact area is uniform, and the whole damping and noise reduction is uniform.
It should be noted that the shape of the groove is not limited, for example, it is rectangular or circular; the degree of depth, the size of recess can be decided according to the practical application condition simultaneously, all are in the utility model discloses a within the scope of protection.
On the basis of the above embodiments, the outer core 1 is composed of a single punching sheet and a plurality of connecting punching sheets,
when the outer iron core 1 is a single-layer outer iron core layer, the single-layer outer iron core layer comprises a plurality of single punching sheets and a plurality of groups of multi-connection punching sheets;
when the outer iron core 1 is a multilayer outer iron core layer, a single punching sheet in the multilayer outer iron core layer is connected with a plurality of upper-layer connecting punching sheets or/and a plurality of lower-layer connecting punching sheets.
In the above structure, the outer core 1 is formed by combining a single punching sheet and a plurality of connecting punching sheets, and the single punching sheet is a segmented punching sheet, as shown in fig. 2. The multiple connecting punching sheets are formed by connecting a plurality of single punching sheets, for example, 2 teeth are connected and 5 teeth are connected, as shown in fig. 3 and 4. The magnetic leakage of the rotor core can be effectively controlled by the single punching sheet, the loss is reduced, the integral structure of the rotor is guaranteed by the multiple connecting punching sheets, the transportation and the turnover are convenient, the production efficiency of the rotor during plastic package forming is improved, and the material consumption of the rotor core can be reduced by the mode of combining the single punching sheet and the multiple connecting punching sheets.
When the outer iron core 1 is a single-layer outer iron core layer, the single-layer outer iron core layer comprises a plurality of single punching sheets and a plurality of groups of multiple connecting punching sheets, the number and the arrangement mode of the single punching sheets and the multiple connecting punching sheets in the single-layer outer iron core layer are not limited, the single punching sheets and the multiple connecting punching sheets can be arranged at intervals in a staggered mode, the single punching sheets and the multiple connecting punching sheets can be arranged in a block mode, and the specific arrangement mode can be set according to different specific use conditions.
When the outer iron core 1 is a multi-layer outer iron core layer, for example, two layers, three layers, ten layers, and twenty layers, the specific number of layers may be determined according to the practical application of the motor. The single punching sheet in the multilayer outer iron core layer is connected with the multiple upper connection punching sheets, or connected with the multiple lower connection punching sheets, or simultaneously connected with the multiple upper connection punching sheets and the multiple lower connection punching sheets. Including but not limited to outer iron core 1 formed by combining integral punching sheets and segmented punching sheets, and outer iron core 1 formed by combining a plurality of connecting punching sheets and segmented punching sheets, as shown in fig. 7 and 8. The performance is the same as that of the segmented punching sheet, the production process is simplified, the production efficiency is improved, the integral structure of the SPM rotor is ensured, the transportation and the production are convenient, the magnetic leakage of the rotor core is effectively controlled, and the loss is reduced.
On the basis of each specific embodiment, the multiple layers of outer iron core layers are laminated and pressed through punching, namely, riveted and pressed, and the two punching sheets are laminated and pressed through punching to form the integral outer iron core 1, so that the transportation and the turnover are facilitated, and the production efficiency of the rotor during plastic package forming can be improved.
On the basis of the above embodiments, the multiple connecting punching sheets are formed by connecting a plurality of single punching sheets, and the multiple connecting punching sheets further include an integral punching sheet, as shown in fig. 5, that is, all the single punching sheets on the same layer are sequentially connected to form a closed-loop integral punching sheet, so that the production process is further simplified, and the production efficiency is improved.
On the basis of the above embodiments, the multiple connection punching sheets may be connected on the inner diameter side, may also be connected on the outer diameter side, and may also be connected on both the inner diameter side and the outer diameter side, and the connection modes are many, which is convenient for connection.
On the basis of the above embodiments, the magnetic shoe filling material 5 is injection molded in the mounting groove of the outer core 1 through an insulating material, and the insulating material not only connects the magnetic shoe filling material 5 in the mounting groove of the outer core 1, but also has a protective effect on the magnetic shoe filling material 5 and the outer core 1.
Based on the rotor that provides in the above-mentioned embodiment, the utility model also provides a motor, this motor include stator 6 and rotor, and stator 6 is installed in the terminal surface mounting groove of the outer iron core 1 of rotor, and wherein the rotor is arbitrary rotor in the above-mentioned embodiment. Since the motor adopts the rotor in the above embodiment, please refer to the above embodiment for the beneficial effect of the motor. The structure of other parts of the motor is referred to the prior art, and is not described herein again.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is right above that the utility model provides a motor and rotor thereof have carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a rotor of motor, its characterized in that, including outer iron core (1), connect in interior iron core (2) in the outer iron core (1) centre bore, suit in pivot (3) in the centre bore of interior iron core (2), connect in magnetic shoe filler (5) in the outer iron core (1) terminal surface mounting groove, the internal diameter of outer iron core (1) with clearance (4) have between the external diameter of interior iron core (2), interior iron core (2) with pivot (3) are integrative axle, integrative axle suit in the centre bore of outer iron core (1), clearance (4) set up in the internal diameter of outer iron core (1) with between the external diameter of integrative axle, outer iron core (1) with it has insulating material or shock-absorbing material to fill in interior iron core (2) clearance (4).
2. The rotor as claimed in claim 1, wherein the joint surface of the integrated shaft and the insulating material or the shock absorbing material is provided with a groove.
3. The rotor as set forth in claim 2 wherein said grooves are plural in number and said plural grooves are parallel.
4. A rotor according to any of claims 1-3, characterized in that the magnetic shoe filling material (5) is injection molded in the mounting slot of the outer core (1) by means of the insulating material.
5. A rotor according to any of claims 1-3, characterized in that the insulating or damping material is a damping elastomer.
6. An electric machine comprising a stator (6) and a rotor, the stator (6) being mounted in an end face mounting slot of an outer core (1) of the rotor, characterized in that the rotor is in particular a rotor according to any of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222102105.0U CN218040958U (en) | 2022-08-10 | 2022-08-10 | Motor and rotor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222102105.0U CN218040958U (en) | 2022-08-10 | 2022-08-10 | Motor and rotor thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218040958U true CN218040958U (en) | 2022-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222102105.0U Active CN218040958U (en) | 2022-08-10 | 2022-08-10 | Motor and rotor thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218040958U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115459548A (en) * | 2022-05-09 | 2022-12-09 | 浙江大学 | Electromagnetic pump |
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2022
- 2022-08-10 CN CN202222102105.0U patent/CN218040958U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115459548A (en) * | 2022-05-09 | 2022-12-09 | 浙江大学 | Electromagnetic pump |
| CN115459548B (en) * | 2022-05-09 | 2023-03-03 | 浙江大学 | Electromagnetic pump |
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