CN203800725U - Motor - Google Patents
Motor Download PDFInfo
- Publication number
- CN203800725U CN203800725U CN201420162520.8U CN201420162520U CN203800725U CN 203800725 U CN203800725 U CN 203800725U CN 201420162520 U CN201420162520 U CN 201420162520U CN 203800725 U CN203800725 U CN 203800725U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- motor
- bracket
- stator
- rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Motor Or Generator Frames (AREA)
Abstract
The utility model relates to a motor. The motor comprises a shaft which is rotatably supported by a bearing component; a rotor which rotates with the shaft together and is provided with a rotor magnet directly or indirectly fixed to the shaft; a stator which is arranged at the radial outer side of the rotor and comprises a stator core comprising an iron core back portion and a plurality of pole teeth, a coil formed by wires for winding the pole teeth, and an insulation piece for insulating the stator core and the coil; an upper carrier frame which is arranged at the upper side of the stator; a lower carrier frame which is arranged at the lower side of the stator, and is used for holding the bearing component; and a circuit board. The upper carrier frame is contacted with the outer peripheral surface of the stator core; the upper carrier frame has a protrusion portion extending to the radial inner side; the protrusion portion is in axial contact with the circuit board; and the insulation piece is in axial contact with the circuit board. The circuit board is firmly fixed through the upper carrier frame and the insulation piece, thereby reducing vibration; and even a large-size circuit board can also be firmly fixed, thereby improving the freedom degree of design.
Description
Technical field
The utility model relates to a kind of motor, more specifically, relates to inner-rotor type motor.
Background technology
Japanese Patent Application Publication specification JP2008-54390A discloses a kind of DC Brushless Motor.The stator that this motor comprises rotor and is positioned at rotor periphery.Stator comprises stator core, insulating part and the coil consisting of the wire by insulating part wound stator core.Armature spindle passes the center of rotor, and rotatably mounted by bearing.Circuit board is attached to described insulating part.Particularly, as shown in Figure 1, insulating part 1 is provided with in evenly spaced three engaging claw 2(figure one of them is only shown at circumferencial direction), engaging claw 2 comprises engagement arm portion 2a and claw 2b, the outer surface of claw 2b is provided with guiding surface 2c, and the inner surface of claw 2b is also provided with composition surface 2d.By pressing circuit board 3 along the direction of arrow against guiding surface 2c, thereby make engaging claw 2 distortion (shown in dotted line), insert thus circuit board 3; Under the elastic force effect of engagement arm portion 2a, an engage sides of composition surface 2d and circuit board 3.The interior perimeter surface of engagement arm portion 2a is also provided with anti-rotation projection 2e, coordinates with the respective slot 3a in circuit board 3, prevents circuit board 3 rotations.Insulating part 2 is also provided with stage portion (not shown), for another surface of bonded circuitry plate 3.By engaging claw 2 and described stage portion, fix circuit board 3.In addition, composition surface 2d can tilt.Even if the thickness of circuit board is different, also can circuit board is firmly fixing.Yet, while fixing circuit board 3 by engaging claw 2, because its axial bearing capacity is little, in use, can cause the vibration of circuit board.
Therefore, thus need a kind of can be by the firm fixing motor that reduces vibration of circuit board.
Utility model content
The purpose of this utility model is just to provide a kind of motor that thereby the firm fixing reduction of circuit board can be vibrated.
For this reason, motor of the present utility model has: axle is rotatable by parts of bearings supporting; Rotor rotates together with described axle, and described rotor has the rotor magnet that is fixed on directly or indirectly described axle; Stator, is positioned at described rotor radial outside, and described stator has: the stator core that comprises iron core back and a plurality of utmost point teeth; The coil being formed by the wire that is wound around described utmost point tooth; And for by the insulating part of described stator core and described coil insulation; Bracket, is configured in described stator upside; Bottom bracket, is configured in described stator downside, and keeps described parts of bearings; And circuit board.Described bracket contacts with the outer peripheral face of described stator core; Described bracket has the protuberance extending to radially inner side, and described protuberance axially contacts with described circuit board; Described insulating part axially contacts with described circuit board.
By bracket and insulating part, circuit board is firmly fixed, reduce vibration.Even if large-sized circuit board also can firmly be fixed, thereby increased the degree of freedom of design.
Accompanying drawing explanation
Those skilled in the art, by the following description of carrying out with reference to the following drawings and to embodiment of the present utility model, can clearly understand above-mentioned and other advantages and feature of the present utility model, in the accompanying drawings:
Fig. 1 is the insulating part of motor and the partial view of circuit board of prior art;
Fig. 2 is the cutaway view of the motor of embodiment of the present utility model;
Fig. 3 is the vertical view of the motor of Fig. 2;
Fig. 4 is the vertical view of bracket of the motor of Fig. 2;
Fig. 5 and Fig. 6 are respectively the vertical views of modification of the mounting plate of motor of the present utility model.
Embodiment
Below specifically describe with reference to the accompanying drawings the embodiment of motor of the present utility model.Accompanying drawing is not necessarily drawn in proportion.Should be appreciated that the following examples and accompanying drawing are only illustrative, should not be considered as limiting scope of the present utility model.Feature in embodiment can combine as required.
In this article, the direction of the central axis OO ' of the axle of term " axially " expression motor, " radially " represent the radial direction centered by the central axis OO ' of axle, " on " the upper residing side of circuit board of expression " axially ", D score represents the residing side of " axially " upper rotor part, the upper side near central axis OO ' of " interior " expression " radially ", the upper side away from central axis OO ' of " outward " expression " radially ".
Fig. 2 is the cutaway view of the motor of embodiment of the present utility model.Motor 10 comprises axle 11, rotor 12, stator 13, bracket 14, bottom bracket 15 and circuit board 16.Axle 11 has central axis OO ', and rotatably mounted by parts of bearings 17.Parts of bearings 17 can be ball bearing.Rotor 12 rotates together with axle 11, and rotor 12 has the rotor magnet 18 that is indirectly fixed to axle 11, for example, by rotor retainer 19, as shown in the figure.In other embodiments, rotor magnet 18 can directly be fixed to axle 11.Stator 13 is positioned at the radial outside of rotor 12, has stator core 20, insulating part 21 and coil 22.Stator core 20 comprises iron core back and a plurality of utmost point tooth.Coil 22 consists of the wire that is wound around described utmost point tooth.Insulating part 21 is by stator core 21 and coil 22 insulation.Insulating part 21 can have pin (not shown), easy so described wire is connected with circuit board 15, for example, by welding.More preferably, the number of described pin can for example, for flowing through at least 2 times of the number of phases of the electric current of coil 22,2 times, 3 times, 4 times or more times.The lead-in wire that flows through each phase current connects from different pins respectively, therefore the number that increases pin can facilitate the assembling of motor, even if especially, for the motor of miniaturization, the lead-in wire that flows through each phase current is connected to the assembling that can facilitate motor from different pins respectively.Bottom bracket 15 is configured in stator 13 downsides, and keeps parts of bearings 17.Bottom bracket 15 can comprise internal perisporium, periphery wall and be connected to the diapire between the two, described internal perisporium maintenance parts of bearings 17, and the annular space of described internal perisporium, periphery wall, diapire formation holds a part for stator 13.Bracket 14 is positioned at stator 13 upsides, and contacts with the outer peripheral face of stator core 20.Bracket 14 has the protuberance 23 extending to radially inner side.At assembling position, when assembling, the lower surface of circuit board 16 axially contacts with insulating part 21, and the upper surface of circuit board 16 axially contacts with the protuberance 23 of bracket 14.Like this circuit board 16 is firmly fixed between insulating part 21 and the protuberance 23 of bracket 14, by such structure, on above-below direction, circuit board 16 is fixed and can be reduced the vibration of circuit board 16 under operation status of motor.In addition, though large-sized circuit board also can firmly be fixed, thereby when realizing the functional diversities of motor, also can increase the degree of freedom of design.As shown in Figure 2, bracket 14 and bottom bracket 15 do not seal the outer radial periphery face of stator core 20 completely, that is, at least a portion of the outer radial periphery face of stator core is exposed.Can, according to the requirement to motor output, can adjust the whole thickness of stator core like this.As shown in Figure 2, at least a portion of circuit board 16 can extend to the radial outside of bracket 14.Can on circuit board, configure more electronic component like this, increase the degree of freedom of design, can meet the needs of the multifunction of motor simultaneously.In addition, as shown in Figure 2, magnetic position detecting element 24(is Hall IC for example) can be configured in the axial lower surface of circuit board 16, for example can be near rotor magnet 18, thus the position of rotation of detection rotor accurately.In certain embodiments, mounting plate 14 can form by punch forming, for example, pass through metallic plate (such as steel plate) punch forming.Can form inexpensively bracket like this.In addition, in the situation that bracket is formed by metal, at the location arrangements grounding pattern contacting with bracket of circuit board, circuit board can pass through bracket ground connection.
Fig. 3 is the vertical view of the motor of Fig. 2.Fig. 4 is the vertical view of bracket of the motor of Fig. 2.As shown in the figure, bracket 14 can comprise a projection 23, described projection can be continuously along a part for the circumference of bracket 14, (for example corresponding central angle is 90 degree-270 degree, preferably, 150-240 degree, more preferably 180 spend) radially extend to the inside, make the circumferential part of opening of bracket 14.During end on observation, the shape of bracket 14 can be circular arc or C shape.Can increase so the axial holding capacity of bracket 14, can increase the design freedom of circuit board at the partial configuration electronic component of circuit board radial outside, can realize the multifunction of motor simultaneously.In addition, as shown in Figure 3, electronic component 25(is such as for resistor, capacitor or inductor etc.) can be arranged on the axial upper surface of circuit board 16, for example can be in the part of circuit board radial outside.Increase like this design freedom of circuit board, can realize the multifunction of motor.Simultaneously, if in the time of need to configuring the larger electronic component of axial dimension on circuit board, can be by this electronic component arrangements the axial upper surface at circuit board 16, even if can not interfere with the stationary part of motor at the large electronic component of circuit board arrangement axial dimension so yet, increase the degree of freedom of motors designs.
Fig. 5 and Fig. 6 are respectively the vertical views of modification of the mounting plate of motor of the present utility model.Fig. 5 shows mounting plate 114 can comprise isolated two projections 123, in these two projections, (for example corresponding central angle is roughly 15-60 degree in each extension of the part along the circumference of mounting plate 114, be preferably 20-40 degree, be more preferably 30 degree), diametrically contraposition (interval is 180 degree roughly), and be connected by the connecting portion 126 radially extending.During end on observation, bracket 114 can be H shape.Circuit board can extend towards radial outside at both direction like this, thereby is convenient to arranging electronic element, has increased thus the design freedom of circuit board, can realize the multifunction of motor.Fig. 6 shows mounting plate 214 can comprise isolated three projections 223, in these three projections, (for example corresponding central angle is roughly 15-60 degree in each extension of the part along the circumference of mounting plate 214, be preferably 20-40 degree, be more preferably 30 degree), interval is 90 degree roughly, and are connected by the connecting portion 226 radially extending.In other embodiments, the number of described projection and layout can be different, for example, can comprise four or more projection, and the interval of described projection can be even or inhomogeneous.
The utility model also tool has the following advantages.
In a preferred embodiment, described bracket forms by metal material punch forming.Can form inexpensively bracket like this.In addition, in the situation that bracket is formed by metal, circuit board can pass through bracket ground connection.
In a preferred embodiment, at least a portion of described circuit board extends to the radial outside of described bracket.Can on circuit board, configure more electronic component like this, increase the degree of freedom of design, can meet the needs of the multifunction of motor simultaneously.
In a preferred embodiment, described insulating part has pin.Easy so described wire is connected with circuit board.
In a preferred embodiment, the number of described pin is at least 2 times of the number of phases that flow through the electric current of described coil.Easy assembling motor, even for the motor of miniaturization.
In a preferred embodiment, at least a portion of the outer radial periphery face of described stator core is exposed.Can, according to the requirement to motor output, can adjust the whole thickness of stator core like this.
In a preferred embodiment, electronic component is arranged on the axial upper surface of described circuit board.Increase like this design freedom of circuit board, can realize the multifunction of motor.
In a preferred embodiment, during end on observation, described bracket is circular arc.Can increase so the axial holding capacity of bracket, can increase the design freedom of circuit board at the partial configuration electronic component of circuit board radial outside, can realize the multifunction of motor simultaneously.
In a preferred embodiment, during end on observation, described bracket is H shape.
In a preferred embodiment, magnetic position detecting element is configured in the axial lower surface of described circuit board.Circuit board can extend towards radial outside at both direction like this, thereby is convenient to arranging electronic element, has increased thus the design freedom of circuit board, can realize the multifunction of motor.
In a preferred embodiment, magnetic position detecting element is configured in the axial lower surface of described circuit board.The position of rotation of detection rotor accurately thus.
Claims (12)
1. a motor, it has:
Axle is rotatable by parts of bearings supporting;
Rotor rotates together with described axle, and described rotor has the rotor magnet that is fixed on directly or indirectly described axle;
Stator, is positioned at described rotor radial outside, and described stator has: the stator core that comprises iron core back and a plurality of utmost point teeth; The coil being formed by the wire that is wound around described utmost point tooth; And for by the insulating part of described stator core and described coil insulation;
Bracket, is configured in described stator upside;
Bottom bracket, is configured in described stator downside, and keeps described parts of bearings; And
Circuit board,
It is characterized in that,
Described bracket contacts with the outer peripheral face of described stator core;
Described bracket has the protuberance extending to radially inner side, and described protuberance axially contacts with described circuit board;
Described insulating part axially contacts with described circuit board.
2. motor according to claim 1, is characterized in that,
Described bracket forms by metal material punch forming.
3. motor according to claim 1, is characterized in that,
At least a portion of described circuit board extends to the radial outside of described bracket.
4. motor according to claim 2, is characterized in that,
At least a portion of described circuit board extends to the radial outside of described bracket.
5. according to the motor described in any one in claim 1-4, it is characterized in that,
Described insulating part has pin.
6. motor according to claim 5, is characterized in that,
The number of described pin is at least 2 times of the number of phases that flow through the electric current of described coil.
7. according to the motor described in any one in claim 1-4, it is characterized in that,
At least a portion of the outer radial periphery face of described stator core is exposed.
8. according to the motor described in any one in claim 1-4, it is characterized in that,
Electronic component is arranged on the axial upper surface of described circuit board.
9. according to the motor described in any one in claim 1-4, it is characterized in that,
During end on observation, described bracket is circular arc.
10. according to the motor described in any one in claim 1-4, it is characterized in that,
During end on observation, described bracket is H shape.
11. according to the motor described in any one in claim 1-4, it is characterized in that,
Magnetic position detecting element is configured in the axial lower surface of described circuit board.
12. motors according to claim 9, is characterized in that,
Magnetic position detecting element is configured in the axial lower surface of described circuit board.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420162520.8U CN203800725U (en) | 2014-04-04 | 2014-04-04 | Motor |
| JP2015053239A JP2015202032A (en) | 2014-04-04 | 2015-03-17 | motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420162520.8U CN203800725U (en) | 2014-04-04 | 2014-04-04 | Motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203800725U true CN203800725U (en) | 2014-08-27 |
Family
ID=51382913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420162520.8U Expired - Fee Related CN203800725U (en) | 2014-04-04 | 2014-04-04 | Motor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2015202032A (en) |
| CN (1) | CN203800725U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112531954A (en) * | 2020-12-11 | 2021-03-19 | 安徽雷利智能科技有限公司 | Shell assembly and motor using same |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59208891A (en) * | 1983-05-13 | 1984-11-27 | 株式会社三協精機製作所 | Porcelain insulated metal circuit board |
| JPH08322U (en) * | 1993-09-20 | 1996-02-16 | 株式会社富士通ゼネラル | Electric motor |
| JP3087881B2 (en) * | 1994-02-10 | 2000-09-11 | 株式会社富士通ゼネラル | Electric motor |
| JP2001211609A (en) * | 2000-01-27 | 2001-08-03 | Mitsubishi Electric Corp | Molded motor, manufacturing method and inspecting method thereof |
| JP4631382B2 (en) * | 2004-10-04 | 2011-02-16 | 日本電産株式会社 | Brushless motor |
| JP4583191B2 (en) * | 2005-01-28 | 2010-11-17 | 三菱電機株式会社 | Rotating electric machine |
| JP2008011650A (en) * | 2006-06-29 | 2008-01-17 | Nidec Sankyo Corp | Motor and motor manufacturing method |
| JP4476270B2 (en) * | 2006-10-20 | 2010-06-09 | 三菱電機株式会社 | Controller-integrated rotating electrical machine |
| FR2926411B1 (en) * | 2008-01-15 | 2015-05-22 | Valeo Systemes Thermiques | MOTOR SUPPORT DEVICE FOR VENTILATION, HEATING AND / OR AIR CONDITIONING SYSTEM. |
| JP5708432B2 (en) * | 2011-10-19 | 2015-04-30 | 三菱電機株式会社 | Rotating electric machine and air conditioner using the same |
| JP5971520B2 (en) * | 2012-08-20 | 2016-08-17 | 日本電産株式会社 | motor |
-
2014
- 2014-04-04 CN CN201420162520.8U patent/CN203800725U/en not_active Expired - Fee Related
-
2015
- 2015-03-17 JP JP2015053239A patent/JP2015202032A/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112531954A (en) * | 2020-12-11 | 2021-03-19 | 安徽雷利智能科技有限公司 | Shell assembly and motor using same |
| CN112531954B (en) * | 2020-12-11 | 2022-03-01 | 安徽雷利智能科技有限公司 | Shell assembly and motor using same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015202032A (en) | 2015-11-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20200404 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |