CN204258468U - Rotor assembly and motor - Google Patents
Rotor assembly and motor Download PDFInfo
- Publication number
- CN204258468U CN204258468U CN201420696773.3U CN201420696773U CN204258468U CN 204258468 U CN204258468 U CN 204258468U CN 201420696773 U CN201420696773 U CN 201420696773U CN 204258468 U CN204258468 U CN 204258468U
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- iron core
- core split
- insulating component
- axle body
- split
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Abstract
The utility model is applicable to machine field, discloses rotor assembly and motor, the magnet that rotor assembly comprises rotating shaft, the first insulating component, the second insulating component, rotor core and is located at outside rotor core, and the first insulating component is located between rotor core and magnet; Rotating shaft comprises the first axle body and the second axle body that are separated from each other, rotor core comprises the first iron core split and the second iron core split that are separated from each other, first iron core split and the second iron core split are placed on the first axle body and the second axle body respectively, and the second insulating component comprises the axial isolation part be located between the first iron core split and the second iron core split.The utility model passes through the insulating effect of the first insulating component and the second insulating component, solves the problem of motor bearings galvanic corrosion; Meanwhile, the connection of its connection by the first axle body and the first iron core split, the second axle body and the second iron core split, ensure that axial adhesion between the first axle body and the second axle body and radial junction are made a concerted effort, ensure that motor reliability of operation.
Description
Technical field
The utility model belongs to machine field, particularly relates to rotor assembly and has the motor of this rotor assembly.
Background technology
In order to solve the problem of motor bearings galvanic corrosion, existing a kind of motor is design like this: rotating shaft is divided into two sections of axis bodies and arranges, and be set in by insulating magnet on the end of two axis bodies.Although this design can reach the object of insulation two sections of axis bodies, but, two sections of axis bodies are connected owing to adopting insulating magnet, the axial adhesion of two sections of axis bodies and radial junction is made to make a concerted effort all less, like this, make motor at a high speed or large torque runs time axis body easily to occur skidding the phenomenon of even slippage, thus had a strong impact on the operation stability of motor, and made this design can only be applied on extremely low power motor; Meanwhile, because its magnet can only adopt insulating magnet, therefore, which limit the selection range of rotor part.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides rotor assembly and motor, which solves how in the problem preventing from ensureing under bearing galvanic corrosion prerequisite motor operation stability.
For achieving the above object, the technical solution adopted in the utility model is: rotor assembly, comprise rotating shaft, the first insulating component, the second insulating component, the magnet that is sheathed on the rotor core in described rotating shaft and is located at outside described rotor core, described first insulating component is located between described rotor core and described magnet; Described rotating shaft comprises the first axle body and the second axle body that are separated from each other, described rotor core comprises the first iron core split and the second iron core split that are separated from each other, described first iron core split and described second iron core split are placed on described the first axle body and described the second axle body respectively, and described second insulating component comprises the axial isolation part be located between described first iron core split and described second iron core split.
Particularly, the center of described first iron core split is run through and is provided with the first axis hole, and one end of described the first axle body is arranged in described first axis hole; The center of described second iron core split is run through and is provided with the second axis hole, and one end of described the second axle body is arranged in described second axis hole.
Preferably, between the outward flange and described first axis hole of described first iron core split, be provided with the first through hole, described second insulating component also comprises extending along described axial isolation part and is filled in first in described first through hole and is embedded portion.
Preferably, between the outward flange and described second axis hole of described second iron core split, be provided with the second through hole, described second insulating component also comprises extending along described axial isolation part and is filled in second in described second through hole and is embedded portion.
Particularly, described first iron core split has the first end face back to described second iron core split, described second iron core split has the second end face back to described first iron core split, and described second insulating component also comprises the first male part of extending along described first portion of being embedded and being convexly equipped on described first end face and extends along described second portion of being embedded the second male part be convexly equipped on described second end face.
Preferably, described magnet is permanent magnet.
Preferably, described permanent magnet comprise several along the circumferential direction spacer ring be set around the magnetic shoe of described rotor core periphery, and between magnetic shoe, there is circumferential spacing described in adjacent two, described second insulating component also comprises and extends along described axial isolation part the circumferential location division be filled between described circumferential spacing.
Preferably, described second insulating component also comprises and extends along described circumferential location division the covering portion be coated on the local outer surface of magnetic shoe described in adjacent two.
Preferably, described second insulating component adopts nylon or PPT plastics integrated injection molding.
Further, the utility model additionally provides motor, it stator module comprising above-mentioned rotor assembly and coordinate with described rotor assembly.
The rotor assembly that the utility model provides and motor, by rotating shaft being axially divided into the first axle body and the setting of the second axle body two parts, rotor core is axially divided into the first iron core split and the setting of second iron core split two parts, and completely cut off rotor core and magnet by the first insulating component, by the isolated first iron core split of the second insulating component and the second iron core split, like this, by the insulating effect of the first insulating component and the second insulating component, the object of effectively insulation the first axle body and the second axle body can be reached, prevent electrically conducting of the first axle body and the second axle body, a kind of novel solution is provided for solving motor bearings galvanic corrosion problems.Simultaneously, because between the first axle body with the first iron core split, between the second axle body with the second iron core split, all direct rigid contact is connected, and combined by the second insulating component between the first iron core split and the second iron core split, therefore, it effectively ensure that axial adhesion between the first axle body and the second axle body and radial junction are made a concerted effort, prevent the phenomenon occurring between motor operation course shaft and rotor core skidding, ensure that the reliability that motor runs.In addition, the magnet in the utility model can adopt insulating magnet also can adopt conductive magnet, expands the selection range of magnet.
Accompanying drawing explanation
Fig. 1 is the axis projection schematic diagram of the rotor assembly that the utility model embodiment provides;
Fig. 2 is the generalized section of A-A in Fig. 1;
Fig. 3 is the axis projection schematic diagram after the rotor assembly that provides of the utility model embodiment removes rotating shaft;
Fig. 4 is the generalized section of B-B in Fig. 3;
Fig. 5 is the generalized section of C-C in Fig. 4.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
It should be noted that, when element is called as on " being fixed on " or " being arranged at " another element, it can directly on another element or may there is centering elements simultaneously.When an element is known as " connection " another element, it can be directly connect another element or may there is centering elements simultaneously.
As depicted in figs. 1 and 2, the rotor assembly that the utility model embodiment provides, comprise rotating shaft 1, first insulating component 4, second insulating component 5, be sheathed on the rotor core 2 in rotating shaft 1 and magnet 3, first insulating component 4 be located at outside rotor core 2 is located between rotor core 2 and magnet 3; Rotating shaft 1 comprises the first axle body 11 and the second axle body 12 that are separated from each other, rotor core 2 comprises the first iron core split 21 and the second iron core split 22 be separated from each other, first iron core split 21 and the second iron core split 22 are placed on the end of the end near the second axle body 12 of the first axle body 11 and the close the first axle body 11 of the second axle body 12 respectively, and the second insulating component 5 comprises the axial isolation part 51 be located between the first iron core split 21 and the second iron core split 22.The first axle body 11 and the second axle body 12 are separately installed with clutch shaft bearing (not shown) and the second bearing (not shown).Particularly, have axial spacing between the first iron core split 21 and the second iron core split 22, axial isolation part 51 is filled between axial spacing.Have radial spacing between the inner surface of magnet 3 and the outer surface of rotor core 2, the first insulating component 4 is located between radial spacing.One end of the first axle body 11 and one end of the second axle body 12 to be arranged in respectively in the first iron core split 21 and the second iron core split 22 and to lay respectively at the both sides of axial isolation part 51.The utility model embodiment, by rotating shaft 1 being axially divided into the first axle body 11 and the setting of the second axle body 12 two parts, rotor core 2 is axially divided into the first iron core split 21 and the setting of second iron core split 22 two parts, and completely cut off rotor core 2 and magnet 3 by the first insulating component 4, by isolated first iron core split 21 and the second iron core split 22 of the second insulating component 5, like this, by the insulating effect of the first insulating component 4 and the second insulating component 5, make the relation that do not electrically conduct between the first iron core split 21 and the second iron core split 22, do not electrically conduct between the first axle body 11 and the second axle body 12 relation yet, thus the object of effectively insulation the first axle body 11 and the second axle body 12 can be reached, prevent electrically conducting of the first axle body 11 and the second axle body 12, a kind of novel solution is provided for solving motor bearings galvanic corrosion problems.Owing to being all that direct rigid contact is connected between the first axle body 11 with the first iron core split 21, between the second axle body 12 with the second iron core split 22 and be the connection between electric conductor, combined by the second insulating component 5 between first iron core split 21 simultaneously and the second iron core split 22, therefore, it effectively ensure that axial adhesion between the first axle body 11 and the second axle body 12 and radial junction are made a concerted effort, prevent the phenomenon occurring between motor operation course shaft 1 and rotor core 2 skidding, ensure that the reliability that motor runs.In addition, the magnet 3 in the utility model embodiment can adopt insulating magnet 3 also can adopt conductive magnet 3, expands the selection range of magnet 3.
In the utility model embodiment, by the second insulating component 5, rotor core 2 and the inductor (magnet 3) producing voltage are isolated, be beneficial to and prevent the induced voltage on magnet 3 to be delivered in rotor core 2 and rotating shaft 1.Simultaneously, because voltage has synergistic effect, therefore, rotating shaft 1 and rotor core 2 are all divided into two parts to arrange, the volume of the assembly that the volume of the assembly that the first axle body 11 and the first iron core split 21 are formed, the second axle body 12 and the second iron core split 22 form all is less than the volume of the assembly that overall rotating shaft 1 and integral rotor iron core 2 are combined into, thus the voltage reduced on the first axle body 11 and the second axle body 12, and then be beneficial to the problem solving bearing galvanic corrosion.
Particularly, as shown in Figure 2-5, the first axis hole 211 being provided with and being equipped with the first axle body 11 is run through in the center of the first iron core split 21, and one end of the first axle body 11 is arranged in the first axis hole 211; The second axis hole 221 being provided with and being equipped with the second axle body 12 is run through in the center of the second iron core split 22, and one end of the second axle body 12 is arranged in the second axis hole 221.The setting of the first axis hole 211, is mainly used in realizing the first iron core split 21 and is inserted in installation on the first axle body 11, and the first axis hole 211 is located at the center position of the first iron core split 21, be beneficial to the structural symmetry of guarantee first iron core split 21.The setting of the second axis hole 221, is mainly used in realizing the second iron core split 22 and is inserted in installation on the second axle body 12, and the second axis hole 221 is located at the center position of the second iron core split 22, be beneficial to the structural symmetry of guarantee second iron core split 22.
Preferably, the aperture of the first axis hole 211 is identical with the aperture of the second axis hole 221, like this, be beneficial to and the first iron core split 21 is set to the identical parts of structure with the second iron core split 22, thus make the first iron core split 21 and the second iron core split 22 only carry out design processing as a kind of parts in a particular application, improve the interchangeability of parts, and then be beneficial to the number of components reducing rotor assembly.
Preferably, between the outward flange and the first axis hole 211 of the first iron core split 21, be provided with the first through hole, as shown in Fig. 2, Fig. 4 and Fig. 5, the second insulating component 5 also comprises isolation part 51 vertically and extends and be filled in first in the first through hole and be embedded portion 52.First setting being embedded portion 52, is beneficial to the structural strength of raising second insulating component 5 and improves the adhesion of the second insulating component 5 and the first iron core split 21.
Preferably, as shown in Figure 5, the first through hole is provided with multiple, and multiple first through hole is along the circumferential direction evenly at equal intervals around being arranged between the outward flange of the first iron core split 21 and the first axis hole 211, and first to be embedded the quantity in portion 52 identical with the quantity of the first through hole.In the present embodiment, the first through hole and first is embedded portion 52 and is preferably set to four, and first to be embedded portion 52 curved, like this, comprehensively can ensure the structural strength of the second insulating component 5 and the structural symmetry of the first iron core split 21 better.Of course, in embody rule, the quantity that the first through hole and first is embedded portion 52 also can be set to other numerical value.
Preferably, as Fig. 2 and Fig. 4, between the outward flange and the second axis hole 221 of the second iron core split 22, be provided with the second through hole, the second insulating component 5 also comprises isolation part 51 vertically and extends and be filled in second in the second through hole and be embedded portion 53.Second setting being embedded portion 53, is beneficial to the structural strength of raising second insulating component 5 and improves the adhesion of the second insulating component 5 and the second iron core split 22.
Preferably, second through hole is provided with multiple, and multiple second through hole is along the circumferential direction around being arranged between the outward flange of the second iron core split 22 and the second axis hole 221, the position of each second through hole is oppositely arranged with the position of each first through hole respectively, and second to be embedded the quantity in portion 53 identical with the quantity of the second through hole.Preferably, the quantity of the first through hole is identical with the quantity of the second through hole, and the position of each second through hole is oppositely arranged with the position of each first through hole respectively, like this, be beneficial on the one hand first to be embedded portion 52 and second and to be embedded the shaping of portion 53, be beneficial to the structural strength of raising second insulating component 5 on the other hand.In the present embodiment, the second through hole is preferably set to four, and second to be embedded portion 53 curved, like this, comprehensively can ensure the structural strength of the second insulating component 5 and the structural symmetry of the second iron core split 22 better.Of course, in embody rule, the quantity of the second through hole also can be set to other numerical value.
Particularly, as shown in Figure 2 and Figure 4, first iron core split 21 has the first end face back to the second iron core split 22, second iron core split 22 has the second end face back to the first iron core split 21, and the second insulating component 5 also comprises and is embedded portion 52 along first and extends the first male part 54 of being convexly equipped on the first end face and be embedded portion 53 along second and extend the second male part 55 be convexly equipped on the second end face.The radial dimension of the first male part 54 is greater than the radial dimension of the first through hole, the radial dimension of the second male part 55 is greater than the radial dimension of the second through hole, like this, axial isolation part 51 and the first male part 54 are stuck in respectively both sides that the both sides of the first iron core split 21, axial isolation part 51 and the second male part 55 are stuck in the second iron core split 22 respectively, effectively ensure that the adhesion of the second insulating component 5 and the first iron core split 21 and the adhesion of the second insulating component 5 and the second iron core split 22.The setting of the first male part 54 and the second male part 55, be beneficial to the structural strength improving the second insulating component 5 further, and be beneficial to the reliability be connected between raising second insulating component 5 with the first iron core split 21, second iron core split 22, ensure that the adhesion of the second insulating component 5, first iron core split 21, second iron core split 22.
Preferably, magnet 3 is permanent magnet 3, like this, is beneficial to the reliability ensureing magnet 3 magnetic, thus is beneficial to the stability ensureing motor performance.
Preferably, as shown in Figure 4 and Figure 5, permanent magnet 3 comprise several along the circumferential direction spacer ring be set around the magnetic shoe 31 of rotor core 2 periphery, magnetic shoe 31 is in tiles, and between adjacent two magnetic shoes 31, there is circumferential spacing, the second insulating component 5 also comprises isolation part 51 vertically and extends the circumferential location division 56 be filled between circumferential spacing.Magnetic shoe 31 specifically can be made up of sintered neodymium iron boron material, like this, is beneficial to the magnetic and the strength of materials that ensure magnetic shoe 31.The setting of circumference location division 56, can be used for carrying out circumference to magnetic shoe 31 spacing, is beneficial to the reliability ensureing magnetic shoe 31 location.
Preferably, as shown in Figure 4 and Figure 5, the second insulating component 5 also comprises circumferentially location division 56 and extends the covering portion 57 be coated on the local outer surface of adjacent two magnetic shoes 31.The setting of covering portion 57, is mainly used in the magnetic shoe 31 that is coated and fixed, thus effectively ensure that the solid and reliable property that magnetic shoe 31 is installed.Of course, in embody rule, magnetic shoe 31 is also locked by other modes.
Preferably, as shown in Fig. 2, Fig. 4 and Fig. 5, first male part 54 extends the circumferential location division 56 of connection and covering portion 57 along the first end face, second male part 55 extends the circumferential location division 56 of connection and covering portion 57 along the second end face, like this, make to be interconnected between the first male part 54 and circumferential location division 56, covering portion 57, be also interconnected between the second male part 55 and circumferential location division 56, covering portion 57, thus be beneficial to the structural strength of raising second insulating component 5.
Particularly, first insulating component 4 can be the painting insulating layer coating be coated on the first iron core split 21 outer surface and the second iron core split 22 outer surface, namely the first insulating component 4 adopts coating method to be coated on the outer surface of the first iron core split 21 and the outer surface of the second iron core split 22, like this, processing technology simple, be easy to operation.Of course, in embody rule, first insulating component 4 also can adopt other modes to be located on the outer surface of the first iron core split 21 and the outer surface of the second iron core split 22, as on the outer surface of the outer surface and the second iron core split 22 that are taken shape in the first iron core split 21 by injection molding manner.
Preferably, second insulating component 5 adopts nylon or PPT material, and (PPT is the material based on macromolecular compound, it comprises rubber, plastics, fiber, coating, adhesive and polymer-based composite, and it is a kind of composite material that various reinforcing material obtains) integrated injection molding.Nylon and PPT material all have preferably insulation property and mechanical property, and like this, the second insulating component 5 adopts nylon or PPT to make, and under the insulation property prerequisite of guarantee second insulating component 5, can ensure the structural strength of the second insulating component 5 further.
In concrete production, first can apply the first insulating component 4 respectively on the outer surface of the first iron core split 21 and the outer surface of the second iron core split 22, then be positioned in injection mold to position being coated with the first iron core split 21 of the first insulating component 4, the second iron core split 22 being coated with the first insulating component 4 and magnet 3 and shaping second insulating component 5 of plastic packaging.
Further, the utility model embodiment still provides motor, it stator module comprising above-mentioned rotor assembly and coordinate with rotor assembly.The motor that the utility model embodiment provides, owing to have employed above-mentioned rotor assembly, therefore, efficiently solve the problem of motor bearings galvanic corrosion, and and ensure that the reliability that motor runs, thus improve the combination property of motor.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace or improvement etc., all should be included within protection range of the present utility model.
Claims (10)
1. rotor assembly, the magnet comprising rotating shaft, be sheathed on the rotor core in described rotating shaft and be located at outside described rotor core, it is characterized in that: also comprise the first insulating component and the second insulating component, described first insulating component is located between described rotor core and described magnet; Described rotating shaft comprises the first axle body and the second axle body that are separated from each other, described rotor core comprises the first iron core split and the second iron core split that are separated from each other, described first iron core split and described second iron core split are placed on described the first axle body and described the second axle body respectively, and described second insulating component comprises the axial isolation part be located between described first iron core split and described second iron core split.
2. rotor assembly as claimed in claim 1, is characterized in that: the center of described first iron core split is run through and is provided with the first axis hole, and one end of described the first axle body is arranged in described first axis hole; The center of described second iron core split is run through and is provided with the second axis hole, and one end of described the second axle body is arranged in described second axis hole.
3. rotor assembly as claimed in claim 2, it is characterized in that: between the outward flange and described first axis hole of described first iron core split, be provided with the first through hole, described second insulating component also comprises extending along described axial isolation part and is filled in first in described first through hole and is embedded portion.
4. rotor assembly as claimed in claim 3, it is characterized in that: between the outward flange and described second axis hole of described second iron core split, be provided with the second through hole, described second insulating component also comprises extending along described axial isolation part and is filled in second in described second through hole and is embedded portion.
5. rotor assembly as claimed in claim 4, it is characterized in that: described first iron core split has the first end face back to described second iron core split, described second iron core split has the second end face back to described first iron core split, and described second insulating component also comprises the first male part of extending along described first portion of being embedded and being convexly equipped on described first end face and extends along described second portion of being embedded the second male part be convexly equipped on described second end face.
6. the rotor assembly as described in any one of claim 1 to 5, is characterized in that: described magnet is permanent magnet.
7. rotor assembly as claimed in claim 6, it is characterized in that: described permanent magnet comprise several along the circumferential direction spacer ring be set around the magnetic shoe of described rotor core periphery, and between magnetic shoe, there is circumferential spacing described in adjacent two, described second insulating component also comprises and extends along described axial isolation part the circumferential location division be filled between described circumferential spacing.
8. rotor assembly as claimed in claim 7, is characterized in that: described second insulating component also comprises and extends along described circumferential location division the covering portion be coated on the local outer surface of magnetic shoe described in adjacent two.
9. rotor assembly as claimed in claim 8, is characterized in that: described second insulating component adopts nylon or PPT plastics integrated injection molding.
10. motor, is characterized in that: comprise rotor assembly as described in any one of claim 1 to 9 and with as described in the stator module that coordinates of rotor assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420696773.3U CN204258468U (en) | 2014-11-19 | 2014-11-19 | Rotor assembly and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420696773.3U CN204258468U (en) | 2014-11-19 | 2014-11-19 | Rotor assembly and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204258468U true CN204258468U (en) | 2015-04-08 |
Family
ID=52962733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420696773.3U Withdrawn - After Issue CN204258468U (en) | 2014-11-19 | 2014-11-19 | Rotor assembly and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204258468U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377856A (en) * | 2014-11-19 | 2015-02-25 | 广东威灵电机制造有限公司 | Rotor assembly and motor |
-
2014
- 2014-11-19 CN CN201420696773.3U patent/CN204258468U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377856A (en) * | 2014-11-19 | 2015-02-25 | 广东威灵电机制造有限公司 | Rotor assembly and motor |
| CN104377856B (en) * | 2014-11-19 | 2017-07-18 | 广东威灵电机制造有限公司 | Rotor assembly and motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150408 Effective date of abandoning: 20170718 |
|
| AV01 | Patent right actively abandoned |