CN204255971U - For the sensor module detecting motor rotary speed or phasing degree and the motor be associated - Google Patents
For the sensor module detecting motor rotary speed or phasing degree and the motor be associated Download PDFInfo
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- CN204255971U CN204255971U CN201420769452.1U CN201420769452U CN204255971U CN 204255971 U CN204255971 U CN 204255971U CN 201420769452 U CN201420769452 U CN 201420769452U CN 204255971 U CN204255971 U CN 204255971U
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- motor
- sensor module
- magnetic field
- permanent magnet
- armature spindle
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Abstract
The utility model provides a kind of sensor module for detecting motor rotary speed or phasing degree, it is characterized in that, this sensor module comprises magnetic field detection parts and permanent magnet, these magnetic field detection parts are installed regularly relative to the armature spindle position of motor, this permanent magnet is connected on this armature spindle to rotate together with this armature spindle, wherein, these magnetic field detection parts and this permanent magnet are arranged facing with each otherly.This sensor module has the low and advantage that size is little of cost.The utility model also relates to the motor with this sensor module, especially motor.
Description
Technical field
The utility model relates to motor, is especially commonly referred to the electro-motor of " motor ".More specifically, the utility model relates to the rotating speed of motor or the detection at phasing degree.
Background technology
Motor is widely used in various mechanical system as power part.In some cases, need to monitor the rotational angle of motor or velocity of rotation.Such as, for electric automobile or hybrid vehicle, for keeping good transport condition, require to monitor with very high precision the rotational angle of the motor of electric power type power train in this automobile or velocity of rotation.
For this reason, current known employing rotary transformer or current vortex sensor are as the rotational angle of described motor or rotational speed sensor.This sensor comprises rotating part and fixed part, and its Detection results is very responsive for the relative position of these parts, and frequent exigent mounting condition.In addition, for current vortex sensor, need to regulate the clearance between rotating part and fixed part.Finally, these known sensors expensive, complex structure and size is relatively large usually.
Utility model content
The purpose of this utility model is by providing a kind of sensor module of electromagnetic type to overcome above-mentioned shortcoming of the prior art.
On the one hand, the utility model provides a kind of sensor module for detecting motor rotary speed or phasing degree, this sensor module comprises magnetic field detection parts and permanent magnet, these magnetic field detection parts are installed regularly relative to the armature spindle position of motor, this permanent magnet is connected on this armature spindle to rotate together with this armature spindle, wherein, these magnetic field detection parts and this permanent magnet are arranged facing with each otherly.
Sensor module of the present utility model is intended to detect the magnetic field intensity that caused by the rotation of motor rotor axle or/and the change of magnetic field angle, and this magnetic field intensity is or/and the change of magnetic field angle can be scaled rotation phase angle or the velocity of rotation of armature spindle subsequently by the control system be associated with this sensor module.Such sensor module has the advantage that cost is low, size is little, and this sensor module has good compatibility to the clearance between its parts and center centering.
Sensor module of the present utility model has feature favourable as follows:
-these magnetic field detection parts and this permanent magnet separate the distance of 0.5mm to 5mm;
-this sensor module comprises the first magnetic shielding cover surrounding magnetic field detection parts and the second magnetic shielding cover surrounding permanent magnet, described first magnetic shielding cover and the second magnetic shielding cover opening toward each other;
-this permanent magnet is attached on connecting pipe, and this connecting pipe is press-fit in the hole of the end being formed in armature spindle;
-this permanent magnet is attached on described connecting pipe via the coated plastic holder being molded in the end of connecting pipe.
On the other hand, the utility model relates to a kind of motor, and this motor is equipped with sensor module as above.Especially, this motor is electro-motor, the motor in electric automobile or hybrid vehicle.
Accompanying drawing explanation
With reference to the accompanying drawings preferred embodiment of the present utility model is described in detail, in the accompanying drawings:
Fig. 1 illustrates the decomposition diagram of the sensor module according to the utility model preferred embodiment;
Fig. 2 illustrates the skeleton view shown in Fig. 1 from another visual angle;
Fig. 3 illustrates the sensor module being in assembled state with cut-open view; And
Fig. 4 is the enlarged drawing of the thin portion A in Fig. 3.
Embodiment
Sensor module of the present utility model is intended to arrange explicitly with the armature spindle of motor rotor, so that by magnetic field intensity or/and the change of magnetic field angle senses rotating speed or the phasing degree of this armature spindle.This sensor module particularly advantageously can be applied to the motor of the electric power type kinematic train of electric automobile or hybrid vehicle, such as, the motor 3 comprising stator 31 and the rotor 32 with armature spindle 33 shown in Fig. 2.
See Fig. 1, described sensor module comprises fixed part 1 and rotating part 2.
According to the utility model, described fixed part 1 is can detect magnetic field, especially detect magnetic field intensity or/and the magnetic field detection parts of change of magnetic field angle, such as, be chip or the circuit board with flux sensing circuit.These magnetic field detection parts 1 are relative to motor 3, be especially fixedly mounted in frame relative to armature spindle 33 position of the rotor 32 of this motor 3, and control system (not shown) can be connected to by cable, so that it is detected about magnetic field intensity or/and the Signal transmissions of magnetic field angle is to this control system, thus allow the rotating speed or the phasing degree that to be drawn this armature spindle 33 by this control system.
Described rotating part 2 is connected with the armature spindle 33 of motor 3, to rotate together with this armature spindle 33.According to the utility model, this rotating part 2 comprises permanent magnet 21, and when armature spindle 33 rotates, the magnetic field produced by this permanent magnet 21 will change thereupon, that is, the magnetic field intensity at each fixing some place is or/and magnetic field angle changes along with the rotation of armature spindle 33.
In the utility model, described magnetic field detection parts 1 are arranged with described permanent magnet 21 facing with each otherly, determining that a magnetic field intensity in the magnetic field that place (that is, the positions residing for these magnetic field detection parts 1) is produced by permanent magnet 21 is or/and the change of magnetic field angle to detect.Especially, the mode that magnetic field detection parts 1 and permanent magnet 21 can align in the horizontal direction with their center is arranged facing with each otherly.
At this, preferably, described magnetic field detection parts 1 and described permanent magnet 21 are arranged to the distance of 0.5-5mm apart.Such distance range can guarantee effective sensing in the magnetic field of magnetic field detection parts 1 pair of permanent magnet 21, realizes the structural compactness of whole sensor module simultaneously.
According to preferred embodiment of the present utility model, go out as shown in figs. 1-2, sensor module of the present utility model also comprises two magnetic shielding covers for isolating exterior magnetic field, that is, for surrounding the first magnetic shielding cover 4 of magnetic field detection parts 1 and the second magnetic shielding cover 5 for surrounding permanent magnet 21.These magnetic shielding covers 4,5 are made up of high magnetic conductive material, and present the form of the cover cap with top section and side direction skirt portion.
As found out from Fig. 3-4, at the assembled state of sensor module, described first magnetic shielding cover 4 and described second magnetic shielding cover 5 opening toward each other, and especially can form the part overlapped mutually.At this preferably, the internal diameter of the second magnetic shielding cover 5 is greater than the external diameter of the first magnetic shielding cover 4.
By arranging magnetic shielding cover, external magnetic field, the magnetic field that such as produced by the stator 31, rotor 32 etc. of motor 3 can be avoided the interference in the magnetic field of permanent magnet 21, thus avoid the distortion of the testing result of magnetic field detection parts 1, and ensure that the detection degree of accuracy at rotating speed to armature spindle 33 or phasing degree.
In a preferred embodiment of the present utility model, except permanent magnet 21, the rotating part 2 of sensor module also comprises connecting pipe 23.This connecting pipe 23 at one end carries this permanent magnet 21, and is press-fit in the hole of the end being formed in armature spindle 33 at the other end, as shown in Fig. 3 and 4.
Described connecting pipe 23 is especially made up of low magnetic conductive material, such as aluminium.Such connecting pipe is conducive to removably connecting between permanent magnet 21 and armature spindle 33 on the one hand, contributes to the Magnetic isolation of permanent magnet 21 relative to armature spindle 33 on the other hand, thus guarantees the accuracy of testing result.
In the sensor module embodiment comprising connecting pipe 23, described permanent magnet 21 can be joined to by the keeper 22 being attached to the end of connecting pipe 23 on this connecting pipe 23.Preferably, described keeper 22 is by the coated end being molded in described connecting pipe 23 of plastic material, and this plastic holder 22 wraps up this permanent magnet 21.
Certainly, keeper 22 also can be made up of other low thermal conductivity material, to guarantee that permanent magnet 21 is isolated relative to the heat of ambient temperature.
See Fig. 3 and Fig. 4, in assembled state, the fixed part of sensor module of the present utility model or the armature spindle 33 of magnetic field detection parts 1 in the outside of motor 3 relative to this motor 3 keep static, and the armature spindle 33 that the rotating part 2 of this sensor module is connected to motor 3 rotates thereupon together.Like this, the magnetic field intensity of position that produced by the permanent magnet 21 of rotating part 2, that be positioned at magnetic field detection parts 1 is or/and the rotation along with armature spindle 33 changes by magnetic field angle.Described magnetic field detection parts 1 detect the magnetic field intensity of this change constantly or/and magnetic field angle and testing result is transferred to control system.Therefore, control system just can according to this magnetic field intensity or/and the change calculations of magnetic field angle goes out rotating speed or the phasing degree of armature spindle 33, and be carried out controlling or regulating as required.
The utility model is not limited to the specific embodiment shown in instructions, but comprises the various modifications and variations that those skilled in the art can expect under instruction of the present utility model.
Claims (7)
1. one kind for detecting the sensor module of motor rotary speed or phasing degree, it is characterized in that, this sensor module comprises magnetic field detection parts and permanent magnet, these magnetic field detection parts are installed regularly relative to the armature spindle position of motor, this permanent magnet is connected on this armature spindle to rotate together with this armature spindle, wherein, these magnetic field detection parts and this permanent magnet are arranged facing with each otherly.
2. sensor module according to claim 1, is characterized in that, these magnetic field detection parts and this permanent magnet separate the distance of 0.5mm to 5mm.
3. sensor module according to claim 1 and 2, it is characterized in that, this sensor module comprises the first magnetic shielding cover surrounding magnetic field detection parts and the second magnetic shielding cover, described first magnetic shielding cover and the described second magnetic shielding cover opening toward each other that surround permanent magnet.
4. sensor module according to claim 1 and 2, is characterized in that, this permanent magnet is attached on connecting pipe, and the press-in of this connecting pipe is engaged in the hole of the end of armature spindle.
5. sensor module according to claim 4, is characterized in that, this permanent magnet is attached on described connecting pipe via the coated plastic holder being molded in the end of connecting pipe.
6. a motor, is characterized in that, this motor is equipped according to the sensor module one of aforementioned claim Suo Shu.
7. motor according to claim 6, is characterized in that, this motor is electro-motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420769452.1U CN204255971U (en) | 2014-12-09 | 2014-12-09 | For the sensor module detecting motor rotary speed or phasing degree and the motor be associated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420769452.1U CN204255971U (en) | 2014-12-09 | 2014-12-09 | For the sensor module detecting motor rotary speed or phasing degree and the motor be associated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204255971U true CN204255971U (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420769452.1U Active CN204255971U (en) | 2014-12-09 | 2014-12-09 | For the sensor module detecting motor rotary speed or phasing degree and the motor be associated |
Country Status (1)
| Country | Link |
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| CN (1) | CN204255971U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105743315A (en) * | 2016-03-31 | 2016-07-06 | 湘潭市电机车厂有限公司 | Novel switch reluctance motor for mine narrow-gauge locomotive |
| JP2019009885A (en) * | 2017-06-23 | 2019-01-17 | 日本電産サンキョー株式会社 | motor |
| CN109416261A (en) * | 2017-03-27 | 2019-03-01 | 弗里茨库伯勒公司 | The shielding harness of magnetic rotary encoder sensing system |
| CN110985130A (en) * | 2019-12-19 | 2020-04-10 | 江苏三蜂机器人有限公司 | Pneumatic motor with rotating speed metering |
| CN112880539A (en) * | 2021-01-19 | 2021-06-01 | 天津中科华誉科技有限公司 | Non-contact position detection device |
-
2014
- 2014-12-09 CN CN201420769452.1U patent/CN204255971U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105743315A (en) * | 2016-03-31 | 2016-07-06 | 湘潭市电机车厂有限公司 | Novel switch reluctance motor for mine narrow-gauge locomotive |
| CN109416261A (en) * | 2017-03-27 | 2019-03-01 | 弗里茨库伯勒公司 | The shielding harness of magnetic rotary encoder sensing system |
| JP2019009885A (en) * | 2017-06-23 | 2019-01-17 | 日本電産サンキョー株式会社 | motor |
| CN110985130A (en) * | 2019-12-19 | 2020-04-10 | 江苏三蜂机器人有限公司 | Pneumatic motor with rotating speed metering |
| CN112880539A (en) * | 2021-01-19 | 2021-06-01 | 天津中科华誉科技有限公司 | Non-contact position detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200082 No. 538, Dalian Road, Shanghai, Yangpu District Patentee after: CONTINENTAL INVESTMENT (CHINA) Co.,Ltd. Address before: 200082 No. 538, Dalian Road, Shanghai, Yangpu District Patentee before: Continental Automotive Holding Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200113 Address after: 200082 8th Floor, 538 Dalian Road, Yangpu District, Shanghai Patentee after: WeiPai technology investment (China) Co.,Ltd. Address before: 200082 No. 538, Dalian Road, Shanghai, Yangpu District Patentee before: CONTINENTAL INVESTMENT (CHINA) Co.,Ltd. |