CN209640371U - A kind of rotation direction detection device of magnetic suspension sealed electric-motor - Google Patents
A kind of rotation direction detection device of magnetic suspension sealed electric-motor Download PDFInfo
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- CN209640371U CN209640371U CN201920699168.4U CN201920699168U CN209640371U CN 209640371 U CN209640371 U CN 209640371U CN 201920699168 U CN201920699168 U CN 201920699168U CN 209640371 U CN209640371 U CN 209640371U
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- permanent magnet
- hall sensor
- rotation direction
- magnetic suspension
- motor
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Abstract
The utility model provides a kind of rotation direction detection device of magnetic suspension sealed electric-motor, including shaft end cover dress；Shaft end cover fills right end face and is along the circumferential direction equipped with the first permanent magnet, the second permanent magnet and third permanent magnet clockwise, and shaft end cover fills left end and the shaft of motor rotates coaxially connection；Shaft end cover dress right side is equipped with Hall sensor seat, and Hall sensor seat is equipped with Hall sensor；On same circumference, the negative leads of Hall sensor are all connected with Switching Power Supply, the input terminal of the signal wire connection oscillograph of Hall sensor for first permanent magnet, the second permanent magnet and third permanent magnet and Hall sensor.A kind of rotation direction detection device of magnetic suspension sealed electric-motor described in the utility model, be used cooperatively multiple permanent magnets and Hall sensor, can under the premise of not removing equipment real-time detection machine shaft rotation direction, securely and reliably, it is time saving and energy saving convenient for operation, there is practicability.
Description
Technical field
The utility model belongs to magnetic levitation technology field, detects dress more particularly, to a kind of rotation direction of magnetic suspension sealed electric-motor
It sets.
Background technique
With the development of science and technology, current suspension technology mainly include electromagnetic suspension, light suspension, acoustic levitation, pneumatic floating,
Electrostatic suspension, particle beams suspension etc.；Magnetic suspension motor then saves bearing using magnetic levitation, avoids rubbing between rotor and stator
Power loss caused by wiping.
Magnetic suspension sealed electric-motor is in practical application, because shaft is invisible so motor is not aware that the rotation of axis when operating
To, such as electromagnetic levitation type refrigeration compressor, it can only dismantle not plus before fluorine by compressor inleting pipe road, visually be seen after starting motor
Impeller rotation direction is examined, not only operation is more troublesome but also is easy to happen safety accident.
Summary of the invention
In view of this, the utility model is directed to a kind of rotation direction detection device of magnetic suspension sealed electric-motor, it is used cooperatively
Multiple permanent magnets and Hall sensor, can under the premise of not removing equipment real-time detection machine shaft rotation direction, safely may be used
It leans on, it is time saving and energy saving convenient for operation, there is practicability.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of rotation direction detection device of magnetic suspension sealed electric-motor, including shaft end cover dress；Shaft end cover fills right end face edge
Circumferencial direction is equipped with the first permanent magnet, the second permanent magnet and third permanent magnet clockwise, and shaft end cover fills turn of left end and motor
Axis rotates coaxially connection；Shaft end cover dress right side is equipped with Hall sensor seat, and Hall sensor seat is equipped with Hall sensor；The
One permanent magnet, the second permanent magnet and third permanent magnet and Hall sensor on same circumference, Hall sensor it is positive and negative
Lead is all connected with Switching Power Supply, the input terminal of the signal wire connection oscillograph of Hall sensor.
When the dress rotation of motor moving axis end cap portions, a pulse can be issued when permanent magnet goes to the position of Hall sensor
Signal, 3 pulse signals are a cycle, only when angled difference between 3 permanent magnets, the waveform that is shown on oscillograph
Time in figure between pulse just can be variant, thus the waveform that machine shaft is operated counterclockwise or acquired when operating clockwise
Diagram shape just can be variant, is just able to achieve with waveform diagram diversity judgement machine shaft rotation direction.
Further, the angle between the first permanent magnet and the second permanent magnet is 90 degree, the second permanent magnet and third permanent magnetism
Angle between body is 30 degree.
Further, the first permanent magnet, the second permanent magnet are identical with third permanent magnet volume.
Further, signal wire is connect with oscillograph by oscilloprobe.
Compared with the existing technology, a kind of rotation direction detection device of magnetic suspension sealed electric-motor described in the utility model have with
Lower advantage:
A kind of rotation direction detection device of magnetic suspension sealed electric-motor described in the utility model, with the use of multiple permanent magnets and
Hall sensor the rotation direction of real-time detection machine shaft securely and reliably can be convenient for operation under the premise of not removing equipment,
It is time saving and energy saving, there is practicability.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.
In the accompanying drawings:
Fig. 1 is a kind of rotation direction structure of the detecting device signal of magnetic suspension sealed electric-motor described in the utility model embodiment
Figure；
Fig. 2 is a kind of rotation direction detection device axis end cap portions of magnetic suspension sealed electric-motor described in the utility model embodiment
Fill schematic diagram；
Fig. 3 is hall sensing in a kind of rotation direction detection device of magnetic suspension sealed electric-motor described in the utility model embodiment
Device seat schematic diagram；
Fig. 4 is waveform diagram in a kind of rotation direction detection device of magnetic suspension sealed electric-motor described in the utility model embodiment.
Description of symbols:
The shaft end 1- cover dress；2- Hall sensor seat；The first permanent magnet of 31-；The second permanent magnet of 32-；33- third permanent magnetism
Body；4- Hall sensor.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more of the features.It is in the description of the present invention, unless another
It is described, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State the concrete meaning of term in the present invention.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figs 1-4, a kind of rotation direction detection device of magnetic suspension sealed electric-motor, including shaft end cover fill 1；Shaft end cover
It fills 1 right end face and is along the circumferential direction equipped with the first permanent magnet 31, the second permanent magnet 32 and third permanent magnet 33, hubcap clockwise
Portion fills 1 left end and the shaft of motor rotates coaxially connection；Shaft end cover fills 1 right side and is equipped with Hall sensor seat 2, Hall sensor
Seat 2 is equipped with Hall sensor 4；First permanent magnet 31, the second permanent magnet 32 and third permanent magnet 33 and Hall sensor 4 exist
On same circumference, the negative leads of Hall sensor 4 are all connected with Switching Power Supply, and the signal wire of Hall sensor 4 connects oscillography
The input terminal of device.
When motor moving axis end cap portions fill 1 rotation, an arteries and veins can be issued when permanent magnet goes to the position of Hall sensor 4
Rushing signal, 3 pulse signals are a cycle, only when angled difference between 3 permanent magnets, the wave that is shown on oscillograph
Time in shape figure between pulse just can be variant, thus the wave that machine shaft is operated counterclockwise or acquired when operating clockwise
Shape diagram shape just can be variant, is just able to achieve with waveform diagram diversity judgement machine shaft rotation direction.
As shown in Figs 1-4, the angle between the first permanent magnet 31 and the second permanent magnet 32 is 90 degree, the second permanent magnet 32 with
Angle between third permanent magnet 33 is 30 degree.
As shown in Figs 1-4, the first permanent magnet 31, the second permanent magnet 32 are identical with 33 volume of third permanent magnet.
As shown in Figs 1-4, signal wire is connect with oscillograph by oscilloprobe.
There are three types of situation, the first situation is for the relative position of Hall sensor 4 and 3 permanent magnet before motor operating
For Hall sensor 4 between the first permanent magnet 31 and the second permanent magnet 32, second situation is that Hall sensor 4 is located at second
Between permanent magnet 32 and third permanent magnet 33, the third situation is that Hall sensor 4 is located at third permanent magnet 33 and the first permanent magnetism
Between body 31.
Before machine shaft rotation, if Hall sensor 4 is between the first permanent magnet 31 and the second permanent magnet 32 at this time,
And the postrotational rotation direction of machine shaft is as shown in arrow 1 in Fig. 4, when each permanent magnet goes to 4 corresponding position of Hall sensor
A pulse signal will be issued by signal wire, because 3 permanent magnet layout angles are different, the time interval of 3 pulse signals
Also different, the waveform reflected on oscillograph is also different, obtains the waveform of oscillograph as shown in Fig. 4 counterclockwise 1.Successively
Analogize, the waveform diagram of 2,3, A, B, C can be obtained.
According to the waveform diagram of oscilloscope display when each machine shaft operating, so that it may which comparative diagram 4 instead releases the rotation of motor
To convenient and efficient.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (4)
1. a kind of rotation direction detection device of magnetic suspension sealed electric-motor, it is characterised in that: fill (1) including shaft end cover；The shaft end
Cover fills (1) right end face and is along the circumferential direction equipped with the first permanent magnet (31), the second permanent magnet (32) and third permanent magnetism clockwise
The shaft of body (33), shaft end cover dress (1) left end and motor rotates coaxially connection；It is set on the right side of the shaft end cover dress (1)
Have Hall sensor seat (2), the Hall sensor seat (2) is equipped with Hall sensor (4)；First permanent magnet (31),
Second permanent magnet (32) and the third permanent magnet (33) and the Hall sensor (4) are on same circumference, institute
The negative leads for stating Hall sensor (4) are all connected with Switching Power Supply, the signal wire connection oscillograph of the Hall sensor (4)
Input terminal.
2. a kind of rotation direction detection device of magnetic suspension sealed electric-motor according to claim 1, it is characterised in that: described first
Angle between permanent magnet (31) and second permanent magnet (32) is 90 degree, and second permanent magnet (32) and the third are forever
Angle between magnet (33) is 30 degree.
3. a kind of rotation direction detection device of magnetic suspension sealed electric-motor according to claim 1, it is characterised in that: described first
Permanent magnet (31), second permanent magnet (32) are identical with third permanent magnet (33) volume.
4. a kind of rotation direction detection device of magnetic suspension sealed electric-motor according to claim 1, it is characterised in that: the signal
Line is connect with the oscillograph by oscilloprobe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920699168.4U CN209640371U (en) | 2019-05-16 | 2019-05-16 | A kind of rotation direction detection device of magnetic suspension sealed electric-motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920699168.4U CN209640371U (en) | 2019-05-16 | 2019-05-16 | A kind of rotation direction detection device of magnetic suspension sealed electric-motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209640371U true CN209640371U (en) | 2019-11-15 |
Family
ID=68498418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920699168.4U Active CN209640371U (en) | 2019-05-16 | 2019-05-16 | A kind of rotation direction detection device of magnetic suspension sealed electric-motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209640371U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113866454A (en) * | 2021-09-30 | 2021-12-31 | 广东美的暖通设备有限公司 | Detection method and device, magnetic suspension motor, compressor and readable storage medium |
-
2019
- 2019-05-16 CN CN201920699168.4U patent/CN209640371U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113866454A (en) * | 2021-09-30 | 2021-12-31 | 广东美的暖通设备有限公司 | Detection method and device, magnetic suspension motor, compressor and readable storage medium |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300457 Block D, No. 90, 12th Avenue, Binhai New Area Development Zone, Tianjin Patentee after: Tianjin Feixuan Technology Co.,Ltd. Address before: 300457 Block D, No. 90, 12th Avenue, Binhai New Area Development Zone, Tianjin Patentee before: TIANJIN EMAGING TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |