CN107070098A - Motor - Google Patents
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- Publication number
- CN107070098A CN107070098A CN201710116795.6A CN201710116795A CN107070098A CN 107070098 A CN107070098 A CN 107070098A CN 201710116795 A CN201710116795 A CN 201710116795A CN 107070098 A CN107070098 A CN 107070098A
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- Prior art keywords
- hall sensor
- stator coil
- baffle plate
- motor
- magnetic field
- 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.)
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Abstract
The invention discloses a kind of motor, it includes stator coil and Hall sensor, Hall sensor is close to stator coil, and described motor also includes a baffle plate being made up of magnetic shielding material, described baffle plate be used to shielding stator coil be powered produce can activate the magnetic field of Hall sensor.The present invention can avoid stator coil from being powered the magnetic field produced to Hall sensor generation interference.
Description
Technical field
The present invention relates to a kind of motor.
Background technology
When Hall sensor is used for measurement motor rotating speed, usually Hall sensor is fixedly mounted on motor, and in electricity
The rotation portion of machine is installed in a magnet steel, rotary course, magnet steel often close to Hall sensor once, Hall sensor is activated
Once, Hall sensor thinks that motor have rotated a circle, and motor speed is calculated with this.
And because when Hall sensor is arranged on motor, Hall sensor so, works as stator coil close to stator coil
When energization produces magnetic field, the magnetic field is possible to that Hall sensor activation by mistake can be caused, so, the magnetic field interferes with hall sensing
The normal of device is used, so that the motor speed of Hall sensor detection is inaccurate.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of motor, and it can avoid stator coil from being powered what is produced
Magnetic field produces interference to Hall sensor.
In order to solve the above technical problems, the motor that the present invention is provided, it includes stator coil and Hall sensor, and Hall is passed
Sensor is close to stator coil, and described motor also includes a baffle plate being made up of magnetic shielding material, and described baffle plate is used to shield
What stator coil energization was produced can activate the magnetic field of Hall sensor.
Preferably, described baffle plate is covered on stator coil, Hall sensor is located at the one side of stator coil, fixed
The radial direction distribution of subcoil and Hall sensor along motor.
Preferably, described Hall sensor and baffle plate is respectively positioned on the one side of stator coil, baffle plate is located at stator line
Between circle and Hall sensor.
Preferably, described baffle plate is covered on stator coil, what Hall sensor was arranged on baffle plate deviates from stator line
On one surface of circle.
After above structure, the present invention compared with prior art, has the following advantages that：
The motor of the present invention, due to being provided with baffle plate, baffle plate can be with armoured magnetic field, the magnetic that stator coil energization can be avoided to produce
Field causes Hall sensor to activate by mistake, also can just avoid Hall sensor from being interfered so that Hall sensor can be normal
Detect motor speed so that the detection data of Hall sensor are accurate.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment one；
Fig. 2 is the structural representation of embodiment two；
Fig. 3 is the structural representation of embodiment three.
Embodiment
The present invention is described in more detail with reference to the accompanying drawings and detailed description.
Embodiment one
As shown in Figure 1, the motor of the present embodiment includes motor stator 4 and rotor 5, and motor stator 4 includes stator coil 1,
A Hall sensor 2 and a baffle plate 3 being made up of magnetic shielding material, Hall sensor 2 are also installed with described motor
Close to stator coil 1, described baffle plate 3 is covered on stator coil 1, and baffle plate 3 is across stator coil 1 so that stator coil 1 to be covered
Lid, Hall sensor 2 is located at the one side of stator coil 1, stator coil 1 and Hall sensor 2 radial direction along motor point
Cloth so that baffle plate 3 can shield stator coil 1 be powered produce can activate the magnetic field of Hall sensor 2, so, stator coil 1
The magnetic field that energization is produced will not produce interference to the normal detection of Hall sensor 2.
Described baffle plate 3 is fabricated from iron, certainly, and baffle plate 3 can also be made up of materials such as aluminium, copper, as long as baffle plate 3 has magnetic
Shielding action.
Embodiment two
As shown in Figure 2, the motor of the present embodiment includes motor stator 4 and rotor 5, and motor stator 4 includes stator coil 1,
A Hall sensor 2 and a baffle plate 3 being made up of magnetic shielding material, Hall sensor 2 are also installed with described motor
The one side of stator coil 1 is respectively positioned on baffle plate 3, Hall sensor 2 is located at stator line close to stator coil 1, described baffle plate 3
Between circle 1 and Hall sensor 2 so that, Hall sensor 2 is blocked by baffle plate 3 in motor in the radial direction, so that gear
Plate 3 can shield stator coil 1 be powered produce can activate the magnetic field of Hall sensor 2, so, stator coil 1 be powered produce
Magnetic field will not produce interference to the normal detection of Hall sensor 2.
Embodiment three
As shown in Figure 3, the motor of the present embodiment includes motor stator 4 and rotor 5, and motor stator 4 includes stator coil 1,
A Hall sensor 2 and a baffle plate 3 being made up of magnetic shielding material are also installed with described motor, baffle plate 3 is covered in
On stator coil 1, Hall sensor 2 be arranged on baffle plate 3 on a surface of stator coil 1 so that baffle plate 3 can be with
What the shielding energization of stator coil 1 was produced can activate the magnetic field of Hall sensor 2, so, and stator coil 1 is powered the magnetic field produced not
Interference can be produced to the normal detection of Hall sensor 2.
Only just present invention application preferably example is made that explanation above, but is not to be construed as the limit to claim
System, structure of the invention can have other changes, be not limited to said structure.In a word, all independent claims in the present invention
Protection domain in the various change made it is within the scope of the present invention.
Claims (4)
1. a kind of motor, it includes stator coil（1）And Hall sensor（2）, Hall sensor（2）Close to stator coil（1）,
It is characterized in that：Described motor also includes a baffle plate being made up of magnetic shielding material（3）, described baffle plate（3）For shielding
Stator coil（1）What energization was produced can activate Hall sensor（2）Magnetic field.
2. motor according to claim 1, it is characterised in that：Described baffle plate（3）It is covered in stator coil（1）On, suddenly
That sensor（2）Positioned at stator coil（1）One side, stator coil（1）And Hall sensor（2）Along the radial direction of motor
Distribution.
3. motor according to claim 1, it is characterised in that：Described Hall sensor（2）And baffle plate（3）It is fixed to be respectively positioned on
Subcoil（1）One side, baffle plate（3）Positioned at stator coil（1）And Hall sensor（2）Between.
4. motor according to claim 1, it is characterised in that：Described baffle plate（3）It is covered in stator coil（1）On, suddenly
That sensor（2）It is arranged on baffle plate（3）Deviate from stator coil（1）A surface on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710116795.6A CN107070098A (en) | 2017-03-01 | 2017-03-01 | Motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710116795.6A CN107070098A (en) | 2017-03-01 | 2017-03-01 | Motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107070098A true CN107070098A (en) | 2017-08-18 |
Family
ID=59622794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710116795.6A Pending CN107070098A (en) | 2017-03-01 | 2017-03-01 | Motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107070098A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202488327U (en) * | 2012-03-29 | 2012-10-10 | 周应来 | Brushless motor with built-in controller |
| CN103326515A (en) * | 2013-06-10 | 2013-09-25 | 哈尔滨理工大学 | Double-magnetic-circuit multi-signal-mode position sensor and detection method thereof |
| JP2014230387A (en) * | 2013-05-22 | 2014-12-08 | アスモ株式会社 | Rotary electric machine |
| CN204652153U (en) * | 2015-05-06 | 2015-09-16 | 长沙美福沛林电子科技有限公司 | For anti-interference motor and the steering wheel of steering wheel |
| CN106208537A (en) * | 2015-05-25 | 2016-12-07 | 株式会社捷太格特 | Rotary angle detecting device |
| CN205811831U (en) * | 2016-04-05 | 2016-12-14 | 深圳市帅泰科技有限公司 | Brushless electric machine |
| CN206524722U (en) * | 2017-03-01 | 2017-09-26 | 宁波市鄞州恒泰机电有限公司 | Motor |
-
2017
- 2017-03-01 CN CN201710116795.6A patent/CN107070098A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202488327U (en) * | 2012-03-29 | 2012-10-10 | 周应来 | Brushless motor with built-in controller |
| JP2014230387A (en) * | 2013-05-22 | 2014-12-08 | アスモ株式会社 | Rotary electric machine |
| CN103326515A (en) * | 2013-06-10 | 2013-09-25 | 哈尔滨理工大学 | Double-magnetic-circuit multi-signal-mode position sensor and detection method thereof |
| CN204652153U (en) * | 2015-05-06 | 2015-09-16 | 长沙美福沛林电子科技有限公司 | For anti-interference motor and the steering wheel of steering wheel |
| CN106208537A (en) * | 2015-05-25 | 2016-12-07 | 株式会社捷太格特 | Rotary angle detecting device |
| CN205811831U (en) * | 2016-04-05 | 2016-12-14 | 深圳市帅泰科技有限公司 | Brushless electric machine |
| CN206524722U (en) * | 2017-03-01 | 2017-09-26 | 宁波市鄞州恒泰机电有限公司 | Motor |
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