CN114047464A - Magnetic pole detection device for outer rotor permanent magnet - Google Patents
Magnetic pole detection device for outer rotor permanent magnet Download PDFInfo
- Publication number
- CN114047464A CN114047464A CN202111402287.7A CN202111402287A CN114047464A CN 114047464 A CN114047464 A CN 114047464A CN 202111402287 A CN202111402287 A CN 202111402287A CN 114047464 A CN114047464 A CN 114047464A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- outer rotor
- detection unit
- poles
- magnetic pole
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/07—Hall effect devices
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
Abstract
The invention provides an outer rotor permanent magnet magnetic pole detection device which is used for detecting at least one outer rotor permanent magnet magnetic pole and comprises at least one base, a detection unit and a display unit, wherein the detection unit is supported on the base, the outer rotor can be sleeved on the periphery of the detection unit and detects a plurality of magnetic poles on the inner wall of the outer rotor through the detection unit, and the display unit is electrically connected with the detection unit and can display the detection result of the detection unit. The outer rotor permanent magnet magnetic pole detection device can simultaneously detect a plurality of magnetic poles in the outer rotor, and can accurately judge the position of a magnetic pole error.
Description
Technical Field
The invention relates to the field of permanent magnet motor detection, in particular to a detection device for detecting at least one outer rotor permanent magnet magnetic pole.
Background
At present, the usage amount of the permanent magnet motor in China is increased year by year, and the permanent magnet motor has the advantages of small volume, high efficiency, simple structure and the like. In the logistics equipment, the electric roller generally uses an outer rotor permanent magnet motor as a drive. The permanent magnet magnetic pole of the outer rotor has the following characteristics: n pole and S pole are alternated, and a multi-section combination mode is adopted.
The existing magnetic pole detection of the outer rotor permanent magnet mainly detects the polarity of each magnetic pole one by one through a magnetic pole pen, and when the number of the magnetic poles is large, the detection error is caused at a high probability; and each magnetic pole needs to be detected once when the magnetic poles are multi-segmented, and the operability is worse when the diameter of the rotor is smaller.
Disclosure of Invention
One of the objectives of the present invention is to provide an outer rotor permanent magnet magnetic pole detection apparatus, which accurately senses a magnetic pole by providing a sensor, so as to accurately determine the position of the magnetic pole, thereby effectively improving the detection reliability of the outer rotor permanent magnet magnetic pole detection apparatus.
One of the objectives of the present invention is to provide an outer rotor permanent magnet magnetic pole detection apparatus, which employs a segmented structure, so that when the permanent magnet magnetic poles in the outer rotor are combined in multiple segments, the outer rotor permanent magnet magnetic pole detection apparatus can simultaneously detect each segment of magnetic poles, thereby improving detection efficiency.
One of the objectives of the present invention is to provide an outer rotor permanent magnet magnetic pole detection apparatus, which uses a hall sensor, and since the hall sensor can measure current and voltage with any waveform, and has the characteristics of firm structure, small volume, light weight, long service life, convenient installation, low power consumption, etc., the application range of the outer rotor permanent magnet magnetic pole detection apparatus can be expanded, and the use cost of the outer rotor permanent magnet magnetic pole detection apparatus can be reduced.
An object of the present invention is to provide an outer rotor permanent magnet magnetic pole detection apparatus that can simultaneously detect a plurality of magnetic poles in an outer rotor and accurately determine a position of a magnetic pole error.
One of the objectives of the present invention is to provide an outer rotor permanent magnet magnetic pole detection apparatus, which has a simple structure, a sensitive response, and a high applicability, and is convenient for a detection person to quickly detect the outer rotor permanent magnet magnetic pole.
In order to achieve at least one of the above objectives, the present invention provides an outer rotor permanent magnet magnetic pole detection apparatus for detecting at least one outer rotor permanent magnet magnetic pole, where the outer rotor permanent magnet magnetic pole detection apparatus includes at least one base, a detection unit and a display unit, where the detection unit is supported on the base, the outer rotor can be sleeved on the periphery of the detection unit and detect a plurality of magnetic poles on the inner wall of the outer rotor through the detection unit, and the display unit is electrically connected to the detection unit and can display the detection result of the detection unit.
In some embodiments, the detection unit includes a plurality of sensors, and the plurality of sensors are respectively disposed on the detection unit to detect polarities of the plurality of permanent magnet poles of the inner wall of the outer rotor.
In some embodiments, the position of the sensor corresponds to the position of the permanent magnet poles of the inner wall of the outer rotor and the number of the sensors is the same as the number of the permanent magnet poles of the inner wall of the outer rotor.
In some embodiments, the detection unit includes at least one bracket, the structure of the bracket is adapted to the structure of the outer rotor so that the outer rotor can be sleeved on the periphery of the bracket, the periphery of the bracket is provided with a plurality of grooves, and the structures of the plurality of grooves are respectively adapted to the structures of the plurality of permanent magnet poles so that the outer rotor can be clamped on the periphery of the bracket.
In some embodiments, the display unit includes at least one circuit board and a plurality of display elements, the plurality of display elements are respectively disposed on the circuit board, and the number of display elements is consistent with the number of sensors and the number of permanent magnet poles in the outer rotor, so that the polarities of the corresponding permanent magnet poles detected by the sensors are respectively displayed by the display elements.
In some embodiments, the display elements include two groups, which respectively display the polarity of the permanent magnet poles of the outer rotor in the N-S state and the polarity of the permanent magnet poles in the S-N state.
In some of these embodiments, the sensor is a hall sensor.
In some of these embodiments, the base is supported by a non-magnetically permeable material.
In some of these embodiments, the base is made of nylon or aluminum.
In some of these embodiments, the display element is an indicator light that displays red or green in color.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic front view of a detecting device according to a first embodiment of the present invention.
Fig. 2 is a schematic top view of a first embodiment of the detecting device according to the present invention.
Fig. 3 is a schematic structural diagram of the outer rotor to be tested.
In the figure: 1. a base; 2. a sensor; 3. a through hole; 4. a signal line; 5. a circuit board; 6. a display element; 7. a display element; 8. an outer rotor; 9. a permanent magnet pole; 10. an outer rotor permanent magnet magnetic pole detection device; 20. a detection unit; 21. a support; 22. a groove; 30. a display unit.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, it should be noted that, the terms "first", "second", etc. are used to define the components, only for the convenience of distinguishing the corresponding components, and as not stated otherwise, the terms have no special meaning, so as shown in fig. 1 to 3, the present invention provides an outer rotor permanent magnet magnetic pole detection apparatus 10 for detecting a permanent magnet magnetic pole 9 of an outer rotor 8, where the outer rotor permanent magnet magnetic pole detection apparatus 10 includes at least a base 1, a detection unit 20 and a display unit 30, where the detection unit 20 is supported on the base 1, and the display unit 30 is electrically connected with the detection unit 20 and can display the detection result of the detection unit 20.
In detail, as shown in fig. 1 and 3, in the first embodiment of the outer rotor permanent magnet magnetic pole detection apparatus 10 according to the present invention, the shape of the detection unit 20 is implemented to be adapted to the shape of the outer rotor 8 so that the outer rotor 8 can be fitted around the outer circumference of the detection unit 20. Because the outer rotor 8 includes a plurality of permanent magnet poles 9, and the plurality of permanent magnet poles 9 are respectively disposed and attached to the inner wall of the outer rotor 8, when the outer rotor 8 is sleeved on the outer circumference of the detection unit 20, the permanent magnet poles 9 on the inner wall of the outer rotor 8 just face the detection unit 20, so that the detection unit 20 can detect the outer rotor permanent magnet poles 9.
The detection unit 20 comprises at least one bracket 21, the structure of the bracket 21 is adapted to the structure of the outer rotor 8 so that the outer rotor 8 can be sleeved on the periphery of the bracket 21, the bracket 21 is provided with sensors 2 corresponding to the positions and the number of the permanent magnet poles 9 of the outer rotor 8, and the sensors 2 are arranged on the bracket 21 and positioned at the joint with the base 1 so as to respectively sense the states of the permanent magnet poles 9 on the outer rotor 8.
In the first embodiment of the present invention, since the permanent magnet poles 9 of the outer rotor 8 are provided in a multi-stage manner, a plurality of grooves 22 are provided on the outer circumference of the bracket 21 of the detection unit 20, and the structures of the plurality of grooves 22 are respectively adapted to the structures of the plurality of permanent magnet poles 9, so that the outer rotor 8 can be just locked on the outer circumference of the detection unit 20.
Specifically, the plurality of sensors 2 respectively correspond to the plurality of permanent magnet poles 9 of the outer rotor 8, so that the accuracy of the induction of the permanent magnet poles 9 by the sensors 2 is improved.
In a first embodiment of the invention, the sensor 2 is implemented as a hall sensor 2.
It should be noted that the base 1 is made of a non-magnetic material. Preferably, the base 1 includes, but is not limited to, nylon, aluminum, etc. However, the specific embodiment of the present invention is not limited thereto, and those skilled in the art may change the specific material of the base 1 and/or the type of the sensor 2 according to actual situations, so long as on the basis of the above disclosure of the present invention, the same or similar technical solution as the present invention is adopted, the same or similar technical problem as the present invention is solved, and the same or similar technical effect as the present invention is achieved, and all of the technical solutions belong to the protection scope of the present invention, and the specific embodiment of the present invention is not limited thereto.
The detection unit 20 is further provided with a plurality of through holes 3, the through holes 3 are respectively located in the grooves of the detection unit 20, the detection unit 20 is electrically connected with the display unit 30 through a plurality of signal lines 4, the signal lines 4 respectively penetrate through the through holes 3 and respectively connect the plurality of sensors 2 with the display unit 30, so that the electric signals of the sensors 2 are transmitted to the display unit 30, and then the electric signals of the sensors 2 are displayed through the display unit 30, so that the polarity of the permanent magnet magnetic poles 9 is presented.
In the first embodiment of the outer rotor permanent magnet pole detection apparatus 10 of the present invention, the display unit 30 includes at least one circuit board 5 and a plurality of display elements (6,7), the plurality of display elements (6,7) are respectively disposed on the circuit board 5, the number of the display elements (6,7) is the same as the number of the sensors 2 and the number of the permanent magnet poles 9 in the outer rotor 8, so that the polarities of the corresponding respective permanent magnet poles 9 detected by the respective sensors 2 are respectively displayed by the respective display elements (6, 7).
Preferably, the display elements (6,7) comprise two groups, respectively displaying the polarity of the permanent magnet poles 9 of the outer rotor 8 in the N-S state and the polarity of the permanent magnet poles 9 in the S-N state.
Further, in the first embodiment of the present invention, the display elements (6,7) are implemented as indicator lights, if the polarities of the permanent magnet poles 9 of the outer rotor 8 are all normal, the display elements (6,7) all display green, and if the polarity of one of the permanent magnet poles 9 is wrong, the corresponding display element (6,7) displays red, so that an operator can timely know the corresponding position of the wrong permanent magnet pole 9.
Besides, those skilled in the art can adjust the display colors of the display elements (6,7) according to actual situations, for example, displaying blue when the polarity is normal, displaying red when the polarity is abnormal, and the specific embodiments of the present invention are not limited thereto, as long as the technical solution the same as or similar to the present invention is adopted based on the above disclosure of the present invention, so as to solve the technical problem the same as or similar to the present invention, and achieve the technical effect the same as or similar to the present invention.
Next, the operation process and the operation principle of the outer rotor permanent magnet magnetic pole detection apparatus 10 according to the present invention will be briefly described further.
When the permanent magnet poles 9 of the outer rotor 8 need to be detected, as long as the outer rotor 8 is sleeved outside the permanent magnet pole detection device 10 of the outer rotor 8, at this time, the plurality of sensors 2 in the detection unit 20 respectively detect the polarities of the plurality of permanent magnet poles 9 in the outer rotor 8, and if the polarities of the permanent magnet poles 9 are all normal, the display elements (6,7) in the display unit 30 all display green. On the contrary, if one or all of the permanent magnet poles 9 have abnormal polarity, one or all of the display elements (6,7) in the display unit 30 display red, and the display elements (6,7) can accurately indicate the abnormal positions of the permanent magnet poles 9.
If the polarities of the permanent magnet poles 9 in the outer rotor 8 are all normal, when the outer rotor 8 is rotated to change the positions of the N pole and the S pole in the permanent magnet poles 9 in the outer rotor 8, the display elements (6,7) in the display unit 30 all display red.
The working principle of the outer rotor permanent magnet magnetic pole detection device 10 is that the polarity of the permanent magnet magnetic pole 9 of the outer rotor 8 is sensed by the sensor 2, and the sensor 2 outputs a high level and a low level respectively through the corresponding polarity of the permanent magnet magnetic pole 9. High-level signals and low-level signals are supplied to the circuit board 5 in the display unit 30 through the signal lines 4. The display elements (6,7) control the corresponding display elements (6,7) to be turned on or off through high level signals and low level signals given by the sensor 2. Thereby judging the polarity of the corresponding magnetic pole.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The outer rotor permanent magnet magnetic pole detection device is used for detecting at least one outer rotor permanent magnet magnetic pole and is characterized by comprising at least one base, a detection unit and a display unit, wherein the detection unit is supported on the base, the outer rotor can be sleeved on the periphery of the detection unit and detects a plurality of permanent magnet magnetic poles on the inner wall of the outer rotor through the detection unit, and the display unit is electrically connected with the detection unit and can display the detection result of the detection unit.
2. The outer rotor permanent magnet pole detection apparatus of claim 1, wherein the detection unit includes a plurality of sensors respectively provided to the detection unit to detect polarities of the plurality of permanent magnet poles of the inner wall of the outer rotor.
3. The outer rotor permanent magnet pole detection apparatus of claim 2, wherein the position of the sensor corresponds to the position of the permanent magnet poles of the inner wall of the outer rotor and the number of the sensors is the same as the number of the permanent magnet poles of the inner wall of the outer rotor.
4. The external rotor permanent magnet pole detection device of claim 3, wherein the detection unit comprises at least one bracket, the structure of the bracket is adapted to the structure of the external rotor so that the external rotor can be sleeved on the periphery of the bracket, the periphery of the bracket is provided with a plurality of grooves, and the structures of the grooves are respectively adapted to the structures of the permanent magnet poles so that the external rotor can be clamped on the periphery of the bracket.
5. The outer rotor permanent magnet pole detection apparatus of claim 4, wherein the display unit includes at least one circuit board and a plurality of display elements, the plurality of display elements are respectively disposed on the circuit board, the number of display elements is consistent with the number of sensors and the number of permanent magnet poles in the outer rotor, so that the polarities of the corresponding respective permanent magnet poles detected by the respective sensors are respectively displayed by the respective display elements.
6. The outer rotor permanent magnet pole detection apparatus of claim 5, wherein the display elements include two sets, respectively displaying the polarity of the permanent magnet poles of the outer rotor in the N-S state and the polarity of the permanent magnet poles in the S-N state.
7. The external rotor permanent magnet pole detection device of claim 6, wherein the sensor is a Hall sensor.
8. The external rotor permanent magnet pole detection apparatus of claim 7, wherein the pedestal is supported by a non-magnetically permeable material.
9. The external rotor permanent magnet pole detection device of claim 8, wherein the base is made of nylon or aluminum.
10. The external rotor permanent magnet pole detection device of any of claims 5-9, wherein the display element is an indicator light that displays red or green.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111402287.7A CN114047464A (en) | 2021-11-24 | 2021-11-24 | Magnetic pole detection device for outer rotor permanent magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111402287.7A CN114047464A (en) | 2021-11-24 | 2021-11-24 | Magnetic pole detection device for outer rotor permanent magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114047464A true CN114047464A (en) | 2022-02-15 |
Family
ID=80210624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111402287.7A Pending CN114047464A (en) | 2021-11-24 | 2021-11-24 | Magnetic pole detection device for outer rotor permanent magnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114047464A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116520218A (en) * | 2023-04-20 | 2023-08-01 | 宁波元辰新材料有限公司 | Magnetic pole detection method, system, terminal and storage medium |
-
2021
- 2021-11-24 CN CN202111402287.7A patent/CN114047464A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116520218A (en) * | 2023-04-20 | 2023-08-01 | 宁波元辰新材料有限公司 | Magnetic pole detection method, system, terminal and storage medium |
| CN116520218B (en) * | 2023-04-20 | 2024-04-09 | 宁波元辰新材料有限公司 | Magnetic pole detection method, system, terminal and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114047464A (en) | Magnetic pole detection device for outer rotor permanent magnet | |
| EP3225439A1 (en) | Plug-in air quality detector, control method and control circuit | |
| US7868776B2 (en) | Apparatus and system for adjusting settings of a power system device using a magnetically coupled actuator | |
| CN204241502U (en) | A kind of motor detection system | |
| CN106197254A (en) | Hall-type angular transducer based on radial magnetizing | |
| CN102809664A (en) | Speed detection device and speed detection method | |
| WO2009111321A2 (en) | Faulted cirtuit indicator with fault characteristic detection and display | |
| CN205643590U (en) | Multicore cable fault detection ware | |
| CN111982087A (en) | Gradient real-time monitoring equipment | |
| CN209690186U (en) | Leakage punching detection device for round tube side wall | |
| CN208580215U (en) | A kind of dual camera Multidirectional-moving detection device | |
| CN108802464B (en) | Universal meter convenient for new energy automobile circuit detection | |
| CN207281265U (en) | A kind of permanent magnet machine rotor Check up polarity cubing | |
| JPH08152301A (en) | Piston position detector | |
| CN217561700U (en) | Magnetic pole detection device for outer rotor permanent magnet | |
| CN215768967U (en) | Novel high-efficient magnet polarity detector | |
| CN210346797U (en) | Hall metering device of water meter | |
| CN210665985U (en) | Insulation inspection module | |
| US8860435B2 (en) | Locating appliance | |
| CN220650697U (en) | Rotation detection sensor and combined sensor | |
| CN206115656U (en) | Harmful gas alarm | |
| CN216290571U (en) | Novel direct-current brushless magnetic suspension stirring micromotor | |
| CN216696365U (en) | Data receiving device of speed measuring sensor for wheel rapid acceleration test | |
| CN2909179Y (en) | Magnetic resistance direct read meter | |
| CN207429531U (en) | A kind of movable state testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |