CN208337281U - A kind of small brushless AC fan motor - Google Patents
A kind of small brushless AC fan motor Download PDFInfo
- Publication number
- CN208337281U CN208337281U CN201820661128.6U CN201820661128U CN208337281U CN 208337281 U CN208337281 U CN 208337281U CN 201820661128 U CN201820661128 U CN 201820661128U CN 208337281 U CN208337281 U CN 208337281U
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- CN
- China
- Prior art keywords
- mounting post
- silicon steel
- steel part
- fan motor
- stator
- 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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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of small brushless AC fan motors, comprising: shell, stator unit and rotor；The shell includes pedestal, pedestal extends outwardly mounting post and shaft；The stator unit includes silicon steel part, the stator coil being wrapped on silicon steel part and the circuit board being electrically connected with stator coil；The rotor includes articulated part, flabellum and annular magnet；The small volume of the utility model entirety, in order to, to be installed in inner space narrow, or in the heater elements such as narrow central processing unit, single-chip of width distance of dissipating-heat environment, and due to stable connection between silicon steel part and mounting post, to be not in break-off between stator and rotor, thus, guarantee fan motor in running, it will not damage, guarantee the better quality of fan.
Description
Technical field
The utility model relates to a kind of fan motors, and in particular to a kind of small brushless AC fan motor.
Background technique
Since electronic equipment becomes smaller and smaller, the need of cooling small electric fan are carried out to fever electronic device and component
Ask sustainable growth.Brushless DC motor provides the useful miniature motor of power for the fan of a kind of electronic equipment.In fan,
It is generally provided with DC brushless fan motor, as shown in Figure 1, the motor 1 includes shell 13, the stator for being fixedly arranged on shell 13
Device 12, rotor 11 and the rotation axis 14 in stator apparatus 12.Shell 13, which extends outwardly, mounting post 131, and the installation
It is installed with an axle sleeve in column 131, and is installed with the bearing that an offer rotation axis 14 places in axle sleeve.The stator apparatus 12 wraps
Silicon steel part 121 annular in shape is included, certainly, coil is wound in silicon steel part 121, when coil is powered, then silicon steel part 121 generates magnetic
?；Rotor 11 surround the periphery for being arranged in stator apparatus 12, and the induction that can be incuded with stator apparatus 12 is provided on rotor 11
Magnet ring 111, using its interaction force between stator, rotor 11 can be rotated by driving.
Moreover, based on the above principles, the wheel hub of the rotor is in design, it is necessary to increase its diameter length, can have compared with
Big accommodating space is to install inductive magnetic ring 111.So general radiator fan is after finishing assembly, whole volume compared with
Greatly, the space of the occasion in case of set by the heater elements such as central processing unit, single-chip is smaller or dissipating-heat environment is by width distance
Limitation when, can not just have enough spaces for its accommodating.
Further, since the effects of DC brushless fan motor 1 in transport or use process, often will receive external impact,
Or due to the external factors such as uneven in temperature, so that the connection between stator apparatus 12 and the mounting post 131 of shell 13 is not firm enough,
It is easy to appear break-off, that is, the stator apparatus 12 of DC brushless fan motor 1 is caused to separate with rotor 11, can not be made
With when the DC brushless fan motor 1 is used in the equipment such as fan, then directly resulting in equipment damage, not being available.
Utility model content
In view of the shortcomings of the prior art, the utility model provides a kind of small brushless AC fan motors, comprising: shell
Body, stator unit and rotor.
The shell includes pedestal, pedestal extends outwardly mounting post and shaft.The stator unit is arranged in shell
On the pedestal of body.The stator unit include silicon steel part, the stator coil being wrapped on silicon steel part and with stator coil electricity
The circuit board of connection.The silicon steel part is annular in shape, and the silicon steel part is looped around the periphery of mounting post, wherein stator coil by
Independent one group of coil composition, and only need to draw two contacts, control of two contacts of the coil by interaction circuit can be formed positive and negative
Conducting, then independent one group of coil can produce alternating magnetic field, with the operating of drive motor impeller.The silicon steel part is set in installation
On column.Shaft is equipped in the mounting post.The rotor includes articulated part, flabellum and annular magnet.The rotor
It is surround the periphery for being arranged in shaft, and is connected in shaft.The articulated part periphery is installed with annular magnet, the annular
Magnet is arranged on the inside of stator coil, and the stator coil is electrically connected with electrical connection circuit plate.The outside of the mounting post
There is gap between elastic strip, the outside of the silicon steel part is equipped with grab, and the grab is pressed on the outer end of silicon steel part
On face.
Coil holder is provided in the silicon steel part, the coil holder is looped around the periphery of mounting post.
The stator component is set in the mounting post of shell.
The outside of the mounting post be equipped with elastic strip, the elastic strip along the mounting post extension axially outwards,
The grab is set to the end of the elastic strip.
The outer end face of the silicon steel part is equipped with card slot, and the grab sinks into the card slot.
It is equipped with shaft in the mounting post, and is disposed to extend along mounting post.
The articulated part apical margin is to extend outwardly to be provided with a surrounding wall, and the flabellum is disposed around wall periphery
On.
The annular magnet is ferro-gum, wherein the annular magnet is locked by screw in articulated part periphery.
The interaction circuit is Integrated circuit IC chip.
The utility model has the advantages that
A kind of small brushless AC fan motor of the utility model, whole small volume, in order to, be installed in internal sky
Between in the heater elements such as narrow central processing unit, the single-chip of narrow or dissipating-heat environment width distance, and due to
Stable connection between silicon steel part and mounting post, thus be not in break-off between stator and rotor, thus, guarantee fan horse
It up in running, will not damage, guarantee the better quality of fan.In addition, the utility model, structure is simple, reliable performance, installation
It is easy to use, it is low manufacture cost, practical, it has a vast market foreground.
Detailed description of the invention:
Fig. 1 is the cut-away view of DC brushless fan motor in the prior art；
Fig. 2 is a kind of cut-away view of small brushless d. c. fan of the utility model；
Fig. 3 is the enlarged structure schematic diagram of A in Fig. 2；
Fig. 4 is the structural schematic diagram of the utility model interaction circuit.
Specific embodiment
Below by drawings and examples, the technical solution of the utility model is described in further detail.
It is as shown in Figures 1 to 4 a kind of small brushless AC fan motor, comprising: shell 23, stator unit 22
With rotor 21.
The shell 23 extends outwardly including pedestal 230, pedestal 230 to be had mounting post 231 and is arranged in mounting post 231
The shaft 26 in center.The stator unit 22 is arranged on the pedestal 230 of shell 23, and is set in the mounting post of shell 23
On 231.The stator unit 22 includes silicon steel part 221, the stator coil 222 and and stator being wrapped on silicon steel part 22
The circuit board 224 that coil 222 is electrically connected.Coil holder is provided in the silicon steel part 221, and silicon steel part 21 is annular in shape.It is described
Silicon steel part 221 be looped around the periphery of mounting post 231, the coil holder is also looped around the periphery of mounting post 231.Wherein stator line
Circle 222 is made of independent one group of coil, and only needs to draw two contacts, and control of two contacts of the coil by interaction circuit can
Forward and reverse conduction is formed, then independent one group of coil can produce alternating magnetic field, with the operating of drive motor impeller.The silicon steel part
221 are set in mounting post 231, in this way, its periphery for being then looped around mounting post 231, coil is also looped around the outer of mounting post 231
Week.Shaft 26 is equipped in the mounting post 231, the shaft 26 is disposed to extend along mounting post 231, can pacified
It is rotated in dress column 231.
The rotor 21 includes articulated part 211, flabellum 212 and annular magnet 214.The rotor 21 surround and is arranged in
The periphery of shaft 26, and be connected in shaft 26.211 periphery of articulated part is installed with annular magnet 214, wherein described
Annular magnet 214 is locked by screw in 211 periphery of articulated part.The annular magnet 214 is arranged in stator coil 222
Side, the stator coil 222 are electrically connected with electrical connection circuit plate 224, which, which is energized, swashs stator coil 222
Magnetic, the annular magnet 214 rotate, to make affixed articulated part 211 that flabellum 212 be driven to rotate centered on locating shaft.
As shown in figure 3, the outside of the mounting post 231 is provided with elastic strip 233, the elastic strip 233 is along peace
The extension axially outwards for filling column 231 has gap 235 between described elastic strip 233 and the outside of mounting post 231, in order to
So that stable connection between silicon steel part 221 and the mounting post 231 of shell 23, the outside of above-mentioned silicon steel part 221 is equipped with grab
234, which is pressed on the outer end face of silicon steel part 221, in this way, after silicon steel part 221 is sleeved in mounting post 231, benefit
The outer end face that silicon steel part 221 is hooked with grab 234, since the inner face of silicon steel part 221 is at the root of mounting post 231, in this way,
The effects of receiving external impact, silicon steel part 221 is hooked only toward outer movement at separate mounting post 231 using grab 234
The outer end face of silicon steel part 221 can then limit silicon steel part 221 and move outward, be connected to so that silicon steel part 221 is firm
It is not in avoid silicon steel part 221 and rotor 21 from being detached from, and utilize the phenomenon that disengaging with mounting post 231 in mounting post 231
The connection type of grab 234 is simple, convenient.
It is illustrated in figure 4 the schematic diagram of movements of the interaction circuit of fan motor: the Hall IC element of the fan motor
6 can incude N, S polarity of magnetic pole, to export pulse wave signal, when the output of Hall IC element 6 is high potential, can trigger crystalline substance
Body pipe 21,22,23 is connected, while transistor 24 is also switched on, and ends transistor 25,26,27, therefore, in stator coil 222
First contact 57 forms positive potential, and the second contact 58 forms negative potential, and the electric current in stator coil 222 is by the first contact 57
Flow to the second contact 58.Conversely, then the electric current in stator coil 222 is to flow to the first contact 57 by the second contact 58, in this way, all
And interactive action is renewed, the electric current that forward and reverse conduction can be formed in coil passes through, and alternating magnetic field is generated, with drive motor rotor
Rotation.The stator coil of the utility model motor is made of single coil, and interacts all transistors and resistive element in shop
One minimum Integrated circuit IC chip is designed to by semiconductor technology.
The utility model fan motor is in design, whole small volume, in order to, to be installed in inner space narrower
In the heater elements such as small or dissipating-heat environment width distance narrow central processing unit, single-chip, and due to silicon steel part
The stable connection between mounting post, thus be not in break-off between stator and rotor, thus, guarantee that fan motor is being transported
It in work, will not damage, guarantee the better quality of fan.
In conclusion the content of the utility model is not limited in the above embodiments, those skilled in the art can
To propose other embodiments within technological guidance's thought of the invention, but these embodiments are included in the scope of the present invention
Within.
Claims (9)
1. a kind of small brushless AC fan motor characterized by comprising shell, stator unit and rotor；
The shell includes pedestal, pedestal extends outwardly mounting post and shaft；Shell is arranged in the stator unit
On pedestal；The stator unit includes silicon steel part, the stator coil being wrapped on silicon steel part and is electrically connected with stator coil
Circuit board；The silicon steel part is annular in shape, and the silicon steel part is looped around the periphery of mounting post, and wherein stator coil is by independent
One group of coil composition, and only need to draw two contacts, control of two contacts of the coil by interaction circuit can be formed just anti-ballistic
Logical, then independent one group of coil can produce alternating magnetic field, with the operating of drive motor impeller；The silicon steel part is set in mounting post
On；Shaft is equipped in the mounting post；The rotor includes articulated part, flabellum and annular magnet；The rotor ring
Around being arranged in the periphery of shaft, and it is connected in shaft；The articulated part periphery is installed with annular magnet, the annular magnetic
Iron is arranged on the inside of stator coil, and the stator coil is electrically connected with electrical connection circuit plate；The outside of the mounting post with
There is gap, the outside of the silicon steel part is equipped with grab, and the grab is pressed on the outer end face of silicon steel part between elastic strip
On.
2. a kind of small brushless AC fan motor according to claim 1, it is characterised in that: set in the silicon steel part
It is equipped with coil holder, the coil holder is looped around the periphery of mounting post.
3. a kind of small brushless AC fan motor according to claim 1, it is characterised in that: the stator component set
It is located in the mounting post of shell.
4. a kind of small brushless AC fan motor according to claim 1, it is characterised in that: outside the mounting post
Side is equipped with elastic strip, and the elastic strip is along the extension axially outwards of the mounting post, and the grab is set on the elastic strip
End.
5. a kind of small brushless AC fan motor according to claim 1, it is characterised in that: outside the silicon steel part
End face is equipped with card slot, and the grab sinks into the card slot.
6. a kind of small brushless AC fan motor according to claim 1, it is characterised in that: worn in the mounting post
It is disposed to extend equipped with shaft, and along mounting post.
7. a kind of small brushless AC fan motor according to claim 1, it is characterised in that: the articulated part apical margin
It is to extend outwardly to be provided with a surrounding wall, the flabellum is disposed around on wall periphery.
8. a kind of small brushless AC fan motor according to claim 1, it is characterised in that: the annular magnet is
Ferro-gum, wherein the annular magnet is locked by screw in articulated part periphery.
9. a kind of small brushless AC fan motor according to claim 1, it is characterised in that: the interaction circuit is
Integrated circuit IC chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820661128.6U CN208337281U (en) | 2018-05-05 | 2018-05-05 | A kind of small brushless AC fan motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820661128.6U CN208337281U (en) | 2018-05-05 | 2018-05-05 | A kind of small brushless AC fan motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208337281U true CN208337281U (en) | 2019-01-04 |
Family
ID=64775997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820661128.6U Expired - Fee Related CN208337281U (en) | 2018-05-05 | 2018-05-05 | A kind of small brushless AC fan motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208337281U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111386018A (en) * | 2020-03-24 | 2020-07-07 | Oppo广东移动通信有限公司 | Heat dissipation assembly of electronic equipment and electronic equipment |
| EP3995936A1 (en) * | 2020-11-10 | 2022-05-11 | Valeo Comfort and Driving Assistance | Haptic actuator for touch-sensitive surface |
| EP4105767A1 (en) * | 2021-06-16 | 2022-12-21 | Valeo Comfort and Driving Assistance | Haptic actuator and display system comprising such an actuator |
-
2018
- 2018-05-05 CN CN201820661128.6U patent/CN208337281U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111386018A (en) * | 2020-03-24 | 2020-07-07 | Oppo广东移动通信有限公司 | Heat dissipation assembly of electronic equipment and electronic equipment |
| CN111386018B (en) * | 2020-03-24 | 2022-05-20 | Oppo广东移动通信有限公司 | Heat dissipation assembly of electronic equipment and electronic equipment |
| EP3995936A1 (en) * | 2020-11-10 | 2022-05-11 | Valeo Comfort and Driving Assistance | Haptic actuator for touch-sensitive surface |
| FR3116136A1 (en) * | 2020-11-10 | 2022-05-13 | Valeo Comfort And Driving Assistance | Haptic actuator for touch surface |
| EP4105767A1 (en) * | 2021-06-16 | 2022-12-21 | Valeo Comfort and Driving Assistance | Haptic actuator and display system comprising such an actuator |
| FR3124290A1 (en) * | 2021-06-16 | 2022-12-23 | Valeo Comfort And Driving Assistance | Haptic actuator and display system comprising such an actuator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190104 Termination date: 20200505 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |