CN2916639Y - Rotating speed detector for AC fan motor - Google Patents
Rotating speed detector for AC fan motor Download PDFInfo
- Publication number
- CN2916639Y CN2916639Y CN 200620121205 CN200620121205U CN2916639Y CN 2916639 Y CN2916639 Y CN 2916639Y CN 200620121205 CN200620121205 CN 200620121205 CN 200620121205 U CN200620121205 U CN 200620121205U CN 2916639 Y CN2916639 Y CN 2916639Y
- Authority
- CN
- China
- Prior art keywords
- fan motor
- rotor
- speed detector
- circuit board
- shell block
- 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 - Lifetime
Links
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 2
- 230000006698 induction Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 230000005284 excitation Effects 0.000 description 2
- 230000007717 exclusion Effects 0.000 description 2
- 230000008713 feedback mechanism Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
Images
Abstract
The utility model relates to a rotary speed testing device of AC fan motor. The AC fan motor comprises a shell base, a wheel box arranged in the shell base in a rotary way, a rotor arranged in the wheel box, and a stator between the rotor and the wheel box and driving the rotor. The rotary speed testing device comprises a circuit board arranged in the shell base, a magnetic component arranged on the rotor, and a sensing component on the circuit board. When the rotor is rotating, the magnetic component will generate rotation relative to the shaft center of the wheel boss. The sensing component can sense the frequency of the magnetic component in the sensing area and send a corresponding rotary speed checking signal to make users know whether the AC fan motor is running normally or not.
Description
[technical field]
The utility model relates to a kind of speed detector, particularly relates to a kind of speed detector of ac fan motor.
[background technology]
Consult Fig. 1,2, the shell 11, that general ac fan motor 1 includes an inner hollow is fixedly arranged on that stator pack 12, in this shell 11 can be ordered about by this stator pack 12 and the rotor 13 that rotates.
This shell 11 has a housing 111, an and axle bed 112 that is positioned at these housing 111 central authorities, 12 of this stator pack are twined coils 122 by several pieces siliconized plates 121 and are formed, and stretched through siliconized plate 121 and be fixed on this housing 111 by several setting elements 123, centre at described siliconized plate 121 then is formed with a center pit 124, this rotor 13 has a wheel hub 131 that is positioned at this housing 111 rotationally, one is fixedly arranged on the induction ring 132 of these wheel hub 131 inside and this center pit 124 that stretched through, one is located on this wheel hub 131 and is positioned at this induction ring 132 and is articulated in rotation axis 133 on this axle bed 112, and several pieces are located at the blade 134 of these wheel hub 131 outer peripheral faces.
Behind coil 122 energization excitations of this stator pack 12, just can produce magnetic force and the principle of utilizing the magnetic mutual exclusion is rotated with the induction ring 132 of ordering about this rotor 13, and then drive described blade 134 rotations, this design is the drive principle of general ac fan motor 1.
Yet above-mentioned design, but lack a kind of feedback mechanism, to inform whether this ac fan motor 1 of user is under the situation of normal operation, and this ac fan motor 1 normally is used in (figure does not show) on the thermal objects, improving its radiating efficiency, in the time of can't remaining in operation in case this ac fan motor 1 running is unusual, just the heat of this thermal objects can not be taken from, this moment, this thermal objects may be because of overheated and influence its work efficiency, even produce burning and damage.
Therefore, how to provide a kind of feedback mechanism, make this ac fan motor 1 under the unusual situation that turns round, can make things convenient for the user to learn at once, with this thermal objects that decommissions rapidly, and then reduce the probability that this thermal objects is damaged, just become relevant dealer and study improved target.
[utility model content]
The purpose of this utility model is to provide a kind of speed detector of ac fan motor, can allow the user learn rapidly whether this ac fan motor is in normal operation.
For achieving the above object, the utility model provides a kind of speed detector of ac fan motor, the shell block, one that this ac fan motor includes an inner hollow is arranged at the rotor that the interior wheel hub, of this shell block is fixedly arranged on this wheel hub inside rotationally, and one between this rotor and wheel hub inner peripheral surface and order about the stator of this rotor rotation, this speed detector includes a circuit board, that is arranged in this shell block and is arranged at this epitrochanterian magnetic element, and one is located on this circuit board and detects the sensing element of the rotating speed of this magnetic element in order to induction.
Effect of the present utility model is, when the rotor rotation of this ac fan motor, be arranged at this epitrochanterian magnetic element and also can produce rotation with respect to the axle center of this wheel hub, and this sensing element just can be responded to the frequency of this magnetic element of detecting by its sensing region, to export corresponding rotary speed detecting signal, just can allow the user learn rapidly whether this ac fan motor is in normal operation.
[description of drawings]
Fig. 1 is a three-dimensional exploded view, and each member relative position of general ac fan motor is described.
Fig. 2 is a side view cutaway drawing, the general ac fan motor that aid illustration is shown in Figure 1.
Fig. 3 is a three-dimensional exploded view, and first preferred embodiment of the speed detector of the utility model ac fan motor is described.
Fig. 4 is a side view cutaway drawing, in aid illustration first preferred embodiment shown in Figure 3, and the state of sensing element detecting induction one magnetic element.
Fig. 5 is a side view cutaway drawing, and second preferred embodiment of the speed detector of the utility model ac fan motor is described.
[embodiment]
Be elaborated below by preferred embodiment and accompanying drawing speed detector to the utility model ac fan motor.
Before the utility model is described in detail, be noted that in the following description similar elements is to represent with identical numbering.
Consult Fig. 3,4, first preferred embodiment of the speed detector 3 of the utility model ac fan motor 2, the shell block 21, one that this ac fan motor 2 includes an inner hollow is arranged at rotor 23, that wheel hubs 22, in this shell block 21 are fixedly arranged on these wheel hub 22 inside between this rotor 23 and wheel hub 22 inner peripheral surfaces and order about the stator 24 that this rotor 23 rotates rotationally, and several pieces are by this outward extending blade 25 in wheel hub 22 outer peripheral faces interval.This stator 24 twines coils 242 by several pieces siliconized plates 241 to be formed, and is locked on this shell block 21 by several setting elements 243 siliconized plate 241 that stretched through again, and makes this stator 24 and shell block 21 be fixed together.
This speed detector 3 includes one and is fixed together and is positioned at its inner circuit board 31, one and be arranged at the lip-deep magnetic element 32 of this rotor 23 towards this circuit board 31 with this shell block 21, and one is located on this circuit board 31 and detects the sensing element 33 of the rotating speed of this magnetic element 32 in order to induction.In the present embodiment, this magnetic element 32 is permanent magnets, and 33 of this sensing elements are Hall elements, and 31 of this circuit boards are to screw togather element 34 by several to stretch through wherein, and then lock is established and is fixed on this shell block 21.
Behind coil 242 energization excitations of this stator 24, just can produce magnetic force and utilize the principle of magnetic mutual exclusion to rotate to order about this rotor 23, at this moment, the magnetic element 32 that is arranged at these rotor 23 bottom surfaces also can produce rotation with respect to the axle center of this wheel hub 22, when this magnetic element 32 is rotated in place sensing region in this sensing element 33, just can respond to mutually with this sensing element 33, so this sensing element 33 just can be responded to the frequency of this magnetic element 32 of detecting by its sensing region, to export corresponding rotary speed detecting signal, in order to detect the operational situation of this rotor 23, and this rotary speed detecting signal can outwards export an attention device (figure does not show) to, when in case these rotor 23 running generations are unusual, the rotary speed detecting signal that this sensing element 33 is sent just can occur unusually, and this attention device just can remind this ac fan motor 2 of user to produce the situation of abnormal failure at once.
Especially this ac fan motor 2 is with helping a thermal objects (figure does not show) when improving radiating effect, if the user is in the very first time of these ac fan motor 2 faults, can be by the bulletin immediately of this attention device, and horse back stops the running of this thermal objects, just can effectively reduce this thermal objects because of overheated probability of damaging.
Consult Fig. 5, second preferred embodiment of the speed detector 3 of the utility model ac fan motor 2, its structure and effect roughly are similar to this first preferred embodiment, different places is to be: the combination difference of this circuit board 31, in the present embodiment, this circuit board 31 no longer is fixed on this shell block 21 (as shown in Figure 4) by screwing togather element 34, the described setting element 243 of the siliconized plate 241 of this stator 24 but utilization stretched through, this circuit board 31 again stretched through, and then lock establishes and is fixed on this shell block 21, makes that whereby this circuit board 31 is to insert and put to be positioned between this stator 24 and the shell block 21.
Conclude above-mentioned, the speed detector 3 of the utility model ac fan motor 2, when this rotor 23 rotates, the magnetic element 32 that is arranged on this rotor 23 just can rotate thereupon, and this magnetic element 32 whenever revolves and turns around, the magnetic field of this magnetic element 32 just be fixed on sensing element 33 on this circuit board 31 and form the Magnetic Inductions when being positioned at the sensing region of this sensing element 33 (this situation be occur in this magnetic element 32) of a certain periods, and make this sensing element 33 according to the frequency of Magnetic Induction corresponding output speed detection signal, and by judging whether rotary speed detecting signal is normal condition, detect the operational situation of this rotor 23, in order to allow the user learn rapidly whether this ac fan motor 2 is in normal operation, so can reach the purpose of this utility model really.
Claims (6)
1. the speed detector of an ac fan motor, the shell block, one that this ac fan motor includes an inner hollow is arranged at the rotor that the interior wheel hub, of this shell block is fixedly arranged on this wheel hub inside rotationally, and one between this rotor and wheel hub inner peripheral surface and order about the stator of this rotor rotation, it is characterized in that:
This speed detector includes a circuit board, that is arranged in this shell block and is arranged at this epitrochanterian magnetic element, and one is located at the sensing element of responding to this magnetic element rotating speed of detection on this circuit board.
2. the speed detector of ac fan motor according to claim 1, it is characterized in that: the circuit board of this detecting unit is to be fixed together with this shell block.
3. the speed detector of ac fan motor according to claim 1, it is characterized in that: the circuit board of this detecting unit is to insert and put to be positioned between this stator and the shell block.
4. as the speed detector of ac fan motor as described in claim 2 or 3, it is characterized in that: the magnetic element of this detecting unit is to be arranged at this rotor cover on the surface of this circuit board.
5. as the speed detector of ac fan motor as described in the claim 4, it is characterized in that: the magnetic element of this detecting unit is a permanent magnet.
6. as the speed detector of ac fan motor as described in the claim 4, it is characterized in that: the sensing element of this detecting unit is a Hall element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620121205 CN2916639Y (en) | 2006-06-13 | 2006-06-13 | Rotating speed detector for AC fan motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620121205 CN2916639Y (en) | 2006-06-13 | 2006-06-13 | Rotating speed detector for AC fan motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2916639Y true CN2916639Y (en) | 2007-06-27 |
Family
ID=38187554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620121205 Expired - Lifetime CN2916639Y (en) | 2006-06-13 | 2006-06-13 | Rotating speed detector for AC fan motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2916639Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102043066A (en) * | 2010-11-15 | 2011-05-04 | 蚌埠市双利电器有限责任公司 | Non-contact magnetic measuring element |
| CN101504012B (en) * | 2008-02-04 | 2012-01-04 | 台达电子工业股份有限公司 | Fan |
| CN101487478B (en) * | 2008-01-15 | 2012-06-13 | 台达电子工业股份有限公司 | Fan and its inner rotor motor |
| US8579609B2 (en) | 2008-01-15 | 2013-11-12 | Delta Electronics, Inc. | Fan and inner rotor motor thereof |
| CN108508228A (en) * | 2017-02-24 | 2018-09-07 | 北京金风科创风电设备有限公司 | Slow-speed shaft speed measuring system and method |
| CN111366742A (en) * | 2020-03-06 | 2020-07-03 | 苏州浪潮智能科技有限公司 | Fan rotating speed detection device and method based on server |
-
2006
- 2006-06-13 CN CN 200620121205 patent/CN2916639Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101487478B (en) * | 2008-01-15 | 2012-06-13 | 台达电子工业股份有限公司 | Fan and its inner rotor motor |
| US8579609B2 (en) | 2008-01-15 | 2013-11-12 | Delta Electronics, Inc. | Fan and inner rotor motor thereof |
| CN101504012B (en) * | 2008-02-04 | 2012-01-04 | 台达电子工业股份有限公司 | Fan |
| CN102043066A (en) * | 2010-11-15 | 2011-05-04 | 蚌埠市双利电器有限责任公司 | Non-contact magnetic measuring element |
| CN108508228A (en) * | 2017-02-24 | 2018-09-07 | 北京金风科创风电设备有限公司 | Slow-speed shaft speed measuring system and method |
| CN111366742A (en) * | 2020-03-06 | 2020-07-03 | 苏州浪潮智能科技有限公司 | Fan rotating speed detection device and method based on server |
| CN111366742B (en) * | 2020-03-06 | 2022-03-04 | 苏州浪潮智能科技有限公司 | Fan rotating speed detection device and method based on server |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070627 |
|
| EXPY | Termination of patent right or utility model |