CN214959231U - Motor and rotor thereof - Google Patents
Motor and rotor thereof Download PDFInfo
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- CN214959231U CN214959231U CN202121328035.XU CN202121328035U CN214959231U CN 214959231 U CN214959231 U CN 214959231U CN 202121328035 U CN202121328035 U CN 202121328035U CN 214959231 U CN214959231 U CN 214959231U
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- magnetic
- rotor
- magnetically permeable
- drive shaft
- permeable plate
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Abstract
The utility model provides a motor and rotor thereof, wherein the motor includes a stator and a rotor, the stator is established at least one pair of winding tooth in by and supplies the winding coil, the rotor includes a magnetic force portion and a drive shaft, the drive shaft be connected in the one end of magnetic force portion, magnetic force part distribute in between the winding tooth, wherein magnetic force portion includes a first magnetic conduction board, a magnet steel and a second magnetic conduction board, the magnet steel by the centre gripping in first magnetic conduction board with between the second magnetic conduction board, wherein, after the coil circular telegram, the both sides atress of magnet steel orders about, makes rotor reciprocating vibration.
Description
Technical Field
The utility model relates to a motor field, more specifically relates to a motor and rotor thereof.
Background
The motor has wide application in the field of electric appliances. With the improvement of the social living standard, small electric appliances such as electric toothbrushes and electric beauty instruments are favored by more and more consumers. The working parts of such small electric appliances need to be driven by a motor to reciprocate for cleaning, massaging, etc. The angle, distance, frequency, stability, etc. of the reciprocating motion of the working member have an influence on the working effect. The performance of the motor is decisive for the working effect of the working parts.
Application document CN106685135A discloses an electric toothbrush and motor device thereof, wherein motor device includes that the motor is opened lessons and is fixed in installing in motor housing's 2 at least utmost point stator core with the symmetry, is equipped with coil winding on the stator core, including being used for the insulating line frame with stator core and coil winding insulation, still include with stator core matched with 2 at least antipodal magnet steel structures, the magnet steel structure all is fixed in the periphery of shaft coupling, shaft coupling fixedly connected with motor shaft. The magnetic steel structures are unevenly distributed on the periphery of the shaft coupling, the volume of the magnetic steel is relatively small, and the strength of the generated magnetic force is limited. Before the magnetic steel is installed on the motor shaft, the shaft coupling needs to be installed firstly, and then the magnetic steel is installed on the shaft coupling, so that the installation is complicated. The motor shaft of the motor adopts a three-stage stepped structure, the structure is complex, and the manufacturing cost is high.
SUMMERY OF THE UTILITY MODEL
An advantage of the utility model is that a motor and rotor thereof is provided, the rotor of motor has the magnet steel of bigger volume, and the effect of exerting oneself is better.
Another advantage of the present invention is to provide a motor and a rotor thereof, the rotor has a simple structure, a low manufacturing cost, and a high installation efficiency.
Another advantage of the present invention is to provide a motor and a rotor thereof, the rotor includes a magnetic portion, the magnetic portion is disposed between the stator cores of the motor, a magnetic steel is generated, and the magnetic steel is driven by the stator to move.
Another advantage of the present invention is to provide a motor and a rotor thereof, wherein the rotor further includes a driving shaft, the driving shaft is connected to the magnetic portion to be driven by the magnetic portion to output kinetic energy outwards.
Another advantage of the present invention is to provide a motor and a rotor thereof, the rotor further includes a first connecting member, the first connecting member is connected the magnetic force portion with the drive shaft, wherein the first connecting member is formed by injection molding, and is simple to manufacture, and the installation step is removed from.
Another advantage of the present invention is to provide a motor and a rotor thereof, the rotor further includes a second connecting member, the second connecting member is formed by injection molding at the other end of the magnetic portion for installing a ball bearing, so that the rotor is supported by the ball bearing to move among the stators.
Another advantage of the present invention is to provide a motor and a rotor thereof, wherein the rotor is distributed in the main or whole part of the stator for generating magnetic force, so as to enhance the magnetic field, and the motor has better force effect.
The other advantages and features of the invention will be fully apparent from the following detailed description and realized by means of the instruments and combinations particularly pointed out in the appended claims.
According to an aspect of the utility model, the utility model provides a motor, include:
the stator is internally provided with at least one pair of winding teeth for winding coils; and
a rotor, the rotor includes a magnetic force portion and a drive shaft, the drive shaft be connected in the one end of magnetic force portion, magnetic force part cloth in between the wire winding tooth, wherein magnetic force portion includes a first magnetic conduction board, an at least magnet steel and a second magnetic conduction board, the magnet steel by the centre gripping in first magnetic conduction board with between the second magnetic conduction board, wherein, after the coil circular telegram, the both sides atress of magnet steel orders about, makes rotor reciprocating vibration.
According to an embodiment of the present invention, the rotor includes a first connecting member, the first connecting member connects the magnetic force portion with the drive shaft, wherein the magnetic force portion with it forms to mould plastics between the drive shaft first connecting member.
According to the utility model discloses an embodiment, first connecting piece is fixed first magnetic conduction board with one among the second magnetic conduction board extremely behind the drive shaft, the installation the magnet steel with first magnetic conduction board with another among the second magnetic conduction board forms magnetic force portion.
According to an embodiment of the present invention, the rotor further includes a second connecting member, the second connecting member is disposed at the other end of the driving shaft opposite to the magnetic force portion to wrap the end of the magnetic force portion.
According to an embodiment of the present invention, the second connecting member includes a second body portion and a supporting portion, the second body portion includes the first magnetic conductive plate and at least one of the second magnetic conductive plates, the supporting portion extends outward from the other end to form a cylindrical shape or a cylinder-like shape, and the supporting portion is used for installing at least one ball bearing.
According to an embodiment of the present invention, the first connecting member is provided with at least one ball bearing, and the stator is provided with at least one housing and at least one end cap at the outside thereof, to obtain the motor.
According to another aspect of the present invention, the present invention further provides a rotor, including
The magnetic force part generates a magnetic field, wherein the magnetic force part comprises a first magnetic conduction plate, at least one magnetic steel and a second magnetic conduction plate, and the magnetic steel is clamped by the first magnetic conduction plate and the second magnetic conduction plate; and
and the driving shaft is fixed at one end of the magnetic part and is driven to output kinetic energy when the magnetic part is driven.
According to the utility model discloses an embodiment, the rotor still includes a first connecting piece, first connecting piece is connected magnetic force portion with the drive shaft magnetic force portion with it forms to mould plastics between the drive shaft a connecting piece.
According to an embodiment of the present invention, the rotor further comprises a second connecting member, wherein the second connecting member is injection molded at the other end of the magnetic portion.
According to the utility model discloses an embodiment, the location the drive shaft first magnetic conduction board with one among the second magnetic conduction board the drive shaft with between one among first magnetic conduction board, the second magnetic conduction board, and first magnetic conduction board the other end of one among the second magnetic conduction board is moulded plastics, forms first connecting piece with the second connecting piece obtains half-finished product install on the half-finished product the magnet steel with first magnetic conduction board another among the second magnetic conduction board obtains the rotor.
Drawings
Fig. 1 is a schematic view of an electric machine according to a preferred embodiment of the present invention.
Fig. 2 is an exploded view of an electric machine according to a preferred embodiment of the present invention.
Fig. 3 is a schematic view of a rotor of an electric machine according to a preferred embodiment of the present invention.
Fig. 4 is an exploded view of a rotor of an electric machine in accordance with a preferred embodiment of the present invention.
Fig. 5 is a schematic diagram of the motion of a motor according to a preferred embodiment of the present invention.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The embodiments of the invention described below and shown in the drawings are to be regarded as examples only and do not limit the invention. Any variations or modifications may be made to the embodiments of the invention without departing from the principles described.
Referring to the drawings of the present invention, fig. 1 to 3 show an electric machine and a rotor thereof according to a preferred embodiment of the present invention, which will be disclosed and explained in the following description.
The motor includes a rotor 10 and a stator 20, and the rotor 10 is assembled inside the stator 20.
The rotor 10 includes a driving shaft 11, a first connecting member 12, a second connecting member 13 and a first magnetic conductive plate 14. The first connecting member 12 connects the first magnetic conductive plate 14 and the driving shaft 11, and the second connecting member 13 is mounted on the other end of the first magnetic conductive plate 14.
That is, the driving shaft 11, the first connecting member 12, the first magnetic conductive plate 14 and the second connecting member 13 are sequentially arranged end to end.
The rotor 10 further includes a second magnetic conductive plate 15, and the second magnetic conductive plate 15 is disposed opposite to the first magnetic conductive plate 14. A space is formed between the first magnetic conduction plate 14 and the second magnetic conduction plate 15. The rotor 10 further includes a magnetic steel 16, and the magnetic steel 16 is disposed between the first magnetic conductive plate 14 and the second magnetic conductive plate 15.
The first magnetic conductive plate 14 and the second magnetic conductive plate 15 may be replaced with each other.
The magnetic steel 16 has a first outer surface 161 and a second outer surface 162, the first outer surface 161 and the second outer surface 162, and the first outer surface 161 and the second outer surface 162 respectively face the stator 20. The number of the magnetic steel 16 can be 1, and the magnetic steel is integrally arranged between the first magnetic conduction plate 14 and the second magnetic conduction plate 15, so that the space occupation by a shaft is avoided, the volume of the magnetic steel is effectively increased, and the output of the motor is enhanced.
In other examples, the number of the magnetic steels 16 may be greater than 1, and the magnetic steels are separately distributed between the first magnetic conductive plate 14 and the second magnetic conductive plate 15.
The driving shaft 11 extends outwards from the first connecting member 12 and is distributed on only a part of the rotor 10 to serve as a power output member. The first magnetic conduction plate 14, the second magnetic conduction plate 15 and the magnetic steel 16 are only distributed between the first connecting piece 12 and the second connecting piece 13, so that space occupation of other parts is avoided, a magnetic field is effectively enhanced, and the motor has a better force output effect.
Alternatively, the rotor 10 includes a magnetic portion and a driving shaft 11, the magnetic portion is disposed in the stator 10, and the magnetic portion generates magnetic poles toward both sides of the stator 20, respectively, to be driven by interaction with the stator 20. The magnetic part comprises the magnetic steel 16, the first magnetic conductive plate 14 and the second magnetic conductive plate 15, and is a component for generating and conducting magnetic force. The driving shaft 11 is connected to one end of the magnetic part, and the driving shaft 11 transmits kinetic energy to the outside after the magnetic part is driven.
The first connecting piece 12 is connected with the magnetic part and the driving shaft 11, the first connecting piece 12 can be formed by injection molding between the magnetic part and the driving shaft 11, the magnetic part and the driving shaft 11 are fixed strongly, and the manufacturing method is simple and efficient.
The first connecting member 12 includes a first body portion 121, and one end of the driving shaft 11 is wrapped by one end of the first body portion 121, so that the two are fixedly connected. The other end of the first body part 121 is formed with a first mounting groove 122 at least at one side surface of both sides thereof, and the first mounting groove 122 is formed by being recessed inward from the side surface. A first protrusion 123 is formed to extend outward from the end portion of the first body portion 121, and the cross-sectional area of the protrusion 123 is smaller than that of the first body portion 121 in the same direction.
One end of the first magnetic conduction plate 14 is wrapped around the side of the first body 121. Similarly, the second connector 13 includes a second body 131, the other end of the first magnetic conductive plate 14 is wrapped around the side of the second body 131, and the first magnetic conductive plate 14 is disposed between the first connector 12 and the second connector 13.
A second mounting groove 132 is formed extending from the end of the second body 131 to the side. A second protrusion 133 is formed by extending from the end of the second body 131, and the cross-sectional area of the second protrusion 133 is smaller than the cross-sectional area of the second body 131 in the same direction.
A supporting portion 134 is formed by extending outward from the other end of the second body portion 131, and the supporting portion 134 has a cylindrical shape or a cylinder-like shape for mounting a bearing.
Two ends of the magnetic steel 16 respectively form a clamping groove 160, and the first projection 123 and the second projection 133 are respectively matched, and the magnetic steel 16 is installed between the first connecting piece 12 and the second connecting piece 13 in a clamping mode. For the purpose of further enhancing the connection strength, glue may be applied to one or more of the magnetic steel 16, the first magnetic conductive plate 14, the first connecting member 12, and/or the second connecting member 13.
In other examples of the present invention, the first protrusion 123 and the second protrusion 133 may be grooves, and the slot 160 may be a protrusion, and is fixed by engaging with the concave-convex block.
Two ends of the second magnetic conductive plate 15 form a clamping portion 151, and the clamping portion 151 is correspondingly clamped in the first mounting groove 122 and the second mounting groove 132. And the joint can be glued to enhance the connection strength.
The first connecting piece 12, the second connecting piece 13, the first magnetic conduction plate 14, the second magnetic conduction plate 15 and the magnetic steel 16 are mutually matched, clamped, positioned and fixed. And the fixed connection strength between the two can be further enhanced by gluing.
Or, the magnetic portions are mainly or entirely disposed between the winding teeth 211, and the magnetic force generating components have a large volume and a strong magnetic field, so that the rotor 10 has a good force output effect.
The stator 20 further includes at least one pair of bobbins 22, the bobbins 22 being mounted to both ends of the stator core 21, coils being wound to the stator core 21 along the bobbins 22, and the bobbins 22 insulating the coils from the stator core 21. The motor further includes a housing 30, at least two ball bearings 40, and at least one end cap 50, the housing 20, the ball bearings 40, and the end cap 50 are mounted on an outer side of the stator 20 along the driving shaft 21, the housing 30 and the end cap 50 include the stator 20, and the ball bearings 40 support the rotor 10 for rotation in the stator 20.
Fig. 5 is a schematic view of the motion of the motor. As shown in fig. 5, the first outer surface 161 and the second outer surface 162 of the magnetic steel 16 respectively generate an S pole and an N pole. After the coils wound on the winding teeth 211 at both sides are energized, S poles and N poles are respectively generated. Under the action of the suction force and the thrust force, the rotor 20 rotates clockwise, and after the current passed by the coil is converted into the direction, the rotor 20 rotates counterclockwise, and finally the reciprocating vibration motion state of the rotor 20 is realized.
The utility model discloses further provide a manufacturing approach of motor and rotor thereof. The drive shaft 11 and the first magnetic conductive plate 14 are made of a metal material. After the driving shaft 11 and the first magnetic conduction plate 14 are positioned, the first connecting piece 12 is formed between the driving shaft 11 and the first magnetic conduction plate 14 through injection molding, the driving shaft 11 and the first magnetic conduction plate 14 are connected, and one end of the first magnetic conduction plate 14 is formed through injection molding, so that the second connecting piece 13 is formed.
The magnetic steel 16 is mounted between the first connecting piece 12 and the second connecting piece 13. The first connecting piece 12 and the second connecting piece 13 clamp the magnetic steel 16, and the magnetic steel 16 and the first magnetic conduction plate 14 can be fixed by gluing to enhance the connection strength.
The second magnetic conductive plate 15 is installed on the other side of the magnetic steel 16, and the second magnetic conductive plate 15 may be clamped between the first connecting piece 12 and the second connecting piece 13, or may be attached to the magnetic steel 16. The rotor 20 is manufactured and assembled.
The bobbin 22 is mounted to both ends of the stator core 21, and a coil is wound along the bobbin 22 and the winding teeth 211, the bobbin 22 insulating the coil from the stator core 21.
The housing 30, the ball bearing 40 and the end cover 50 are mounted to the outside of the stator 20, the housing 30 and the end cover 50 wrap the stator 20, and the ball bearing 40 supports the rotor 10 to move in the stator 20.
It will be understood by those skilled in the art that the stator shown in the drawings is for reference and ease of description purposes only, and the present invention provides a rotor that can be adapted to a variety of stators, the specific shape, configuration of which is not limiting. The stator can be in a shape of internally-arranged symmetrical winding teeth, can also be in a shape of an opening on one side, and can also be various stators such as a U-shaped stator, a split type stator and the like.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same, the technical features in each technical solution can be modified or replaced, or combined with each other, and any technical solution that does not depart from the principles of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An electric machine, comprising:
the stator is internally provided with at least one pair of winding teeth for winding coils; and
a rotor, the rotor includes a magnetic force portion and a drive shaft, the drive shaft be connected in the one end of magnetic force portion, magnetic force part cloth in between the wire winding tooth, wherein magnetic force portion includes a first magnetic conduction board, an at least magnet steel and a second magnetic conduction board, the magnet steel by the centre gripping in first magnetic conduction board with between the second magnetic conduction board, wherein, after the coil circular telegram, the both sides atress of magnet steel orders about, makes rotor reciprocating vibration.
2. The electric machine of claim 1 wherein the rotor includes a first coupling member connecting the magnetic force portion and the drive shaft, wherein the first coupling member is injection molded between the magnetic force portion and the drive shaft.
3. The electric machine of claim 2, wherein the magnetic steel and the other of the first magnetically permeable plate and the second magnetically permeable plate are mounted to form the magnetic portion after the first connector secures the one of the first magnetically permeable plate and the second magnetically permeable plate to the drive shaft.
4. The motor of claim 3, wherein the rotor further comprises a second coupling member disposed at the other end of the magnetic portion opposite to the driving shaft to wrap the end of the magnetic portion.
5. The electric machine of claim 4 wherein the second connector comprises a second body portion comprising at least one of the first and second magnetically permeable plates and a support portion extending outwardly from the other end to form a cylindrical or quasi-cylindrical shape, the support portion being adapted to receive at least one ball bearing.
6. The electric machine of claim 5, wherein at least one ball bearing is mounted at said first connection member, and at least one housing and at least one end cap are mounted outside said stator, resulting in said electric machine.
7. A rotor, comprising
The magnetic force part generates a magnetic field, wherein the magnetic force part comprises a first magnetic conduction plate, at least one magnetic steel and a second magnetic conduction plate, and the magnetic steel is clamped by the first magnetic conduction plate and the second magnetic conduction plate; and
and the driving shaft is fixed at one end of the magnetic part and is driven to output kinetic energy when the magnetic part is driven.
8. The rotor of claim 7, wherein the rotor further comprises a first coupling member connecting the magnetic portion and the drive shaft, the coupling member being injection molded between the magnetic portion and the drive shaft.
9. The rotor of claim 8, wherein the rotor further comprises a second connecting member, wherein the second connecting member is injection molded at the other end of the magnetic force part.
10. The rotor of claim 9, wherein one of the drive shaft, the first magnetically permeable plate, and the second magnetically permeable plate is positioned, injection molding is performed between the drive shaft and one of the first magnetically permeable plate and the second magnetically permeable plate, and the other end of the one of the first magnetically permeable plate and the second magnetically permeable plate, the first connecting piece and the second connecting piece are formed, a semi-finished product is obtained, and the magnetic steel and the other of the first magnetically permeable plate and the second magnetically permeable plate are mounted on the semi-finished product, and the rotor is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121328035.XU CN214959231U (en) | 2021-06-16 | 2021-06-16 | Motor and rotor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121328035.XU CN214959231U (en) | 2021-06-16 | 2021-06-16 | Motor and rotor thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214959231U true CN214959231U (en) | 2021-11-30 |
Family
ID=79050752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121328035.XU Active CN214959231U (en) | 2021-06-16 | 2021-06-16 | Motor and rotor thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214959231U (en) |
-
2021
- 2021-06-16 CN CN202121328035.XU patent/CN214959231U/en active Active
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