CN104967255A - Device for detecting rotating speed and direction of rotor - Google Patents
Device for detecting rotating speed and direction of rotor Download PDFInfo
- Publication number
- CN104967255A CN104967255A CN201510444700.4A CN201510444700A CN104967255A CN 104967255 A CN104967255 A CN 104967255A CN 201510444700 A CN201510444700 A CN 201510444700A CN 104967255 A CN104967255 A CN 104967255A
- Authority
- CN
- China
- Prior art keywords
- rotor
- hall element
- rotating shaft
- magnet ring
- printed substrate
- 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
- 239000000758 substrate Substances 0.000 claims description 18
- 239000003292 glue Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 7
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Abstract
The invention discloses a device for detecting the rotating speed and direction of a rotor, and the device comprises the rotor and a printed circuit board. The rotor comprises a rotating shaft and a magnetic ring, and the rotating shaft passes through the magnetic ring to be fixedly connected with the magnetic ring. The innovation of the invention lies in that a part, close to the magnetic ring, of the same surface of the printed circuit board is provided with a Hall element; and the Hall element is electrically connected with the printed circuit board. The device can stably detect magnetic field signals of N and S poles of the magnetic ring, and improves the reliability of a detection signal of a detector.
Description
Technical field
The present invention relates to the device in a kind of detection rotor rotating speed and direction, belong to technical field of motors.
Background technology
Hall element is critical function parts in monitoring rotor speed and direction, Hall element on the Hall circuit board of general motor really cannot accomplish that annular distributes around magnet ring, when motor oscillating is excessive, wiring board cannot true vertical in rotating shaft, thus cause Hall element and magnet ring distance of reaction to change, cause signal to export bad, there is reliability hidden danger.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, provides the checkout gear in a kind of rotor speed and direction, and it can the field signal of stable detection magnet ring N, S pole, improves the reliability of controller detection signal.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: the checkout gear in a kind of rotor speed and direction, comprise rotor and printed substrate, described rotor comprises rotating shaft and magnet ring, and rotating shaft is passed magnet ring and is fixedly connected with magnet ring, its innovative point is: the same surface of described printed substrate is being provided with Hall element near magnet ring place, and described Hall element is electrically connected with printed substrate.
The plane at described printed substrate place and the center line of rotating shaft perpendicular.
Described Hall element is at least provided with three, and is distributed in ringwise around rotating shaft.
The upper and lower surface of described printed substrate all scribbles glue, causes the hidden danger that electronic devices and components loosen to avoid motor to shake.
After have employed technique scheme, the present invention has following beneficial effect:
1) rotor turns forms magnetic field, detects N, S polarity of magnet ring and magnetic field intensity thus the rotating speed of detection rotor and direction by connecting Hall element on a printed-wiring board;
2) the above and below gluing of printed substrate, is fixed on motor securely, effectively can eliminate the Hall element caused because motor oscillating is excessive and the hidden danger that magnet ring distance of reaction changes and electronic devices and components easily loosen;
3) multiple Hall element can provide multiple hall signal to export, and when wherein a road or two-way hall signal export bad, the output of other hall signals is unaffected;
4) Hall element is distributed in the field signal of N, S pole that effectively can accept magnet ring around rotating shaft ringwise, and hall signal is fed back to automotive control system, improves the reliability that controller detects motor speed and direction signal.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiments of the invention one.
Embodiment
In order to make content of the present invention more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation.
As shown in Figure 1, the checkout gear in a kind of rotor speed and direction, comprise rotor 1 and printed substrate 2, described rotor 1 comprises rotating shaft 3 and magnet ring 4, and rotating shaft 3 is passed magnet ring 4 and is fixedly connected with magnet ring 4, it is characterized in that: the same surface of described printed substrate 2 is being provided with Hall element 5 near magnet ring 4 place, and described Hall element 5 is electrically connected with printed substrate 4.
The plane at described printed substrate 5 place and the center line of rotating shaft 1 perpendicular.More be conducive to the accuracy of detection signal and result.
Described Hall element 3 is at least provided with three, and is distributed in rotating shaft 1 ringwise around.The Hall element that the present invention adopts is 3, can be 4 or more certainly.
The upper and lower surface of described printed substrate 4 all scribbles glue, causes the hidden danger that electronic devices and components loosen to avoid motor to shake.
Rotor turns forms magnetic field, detects N, S polarity of magnet ring 4 and magnetic field intensity thus the rotating speed of detection rotor and direction by the Hall element 5 be connected on printed substrate 2; Printed substrate 2 is fixed on motor securely by gluing, effectively can eliminate the hidden danger that distance of reaction changes and electronic devices and components easily loosen of the Hall element 5 and magnet ring 4 caused because motor oscillating is excessive; Multiple Hall element 3 can provide multiple hall signal to export, and when wherein a road or two-way hall signal export bad, the output of other hall signals is unaffected; The surrounding that Hall element 5 is distributed in rotating shaft 1 ringwise effectively can accept the field signal of N, S pole of magnet ring 4, and hall signal is fed back to automotive control system, improves the reliability that controller detects motor speed and direction signal.
Above-described specific embodiment; technical problem, technical scheme and beneficial effect that the present invention solves are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. the checkout gear in a rotor speed and direction, comprise rotor (1) and printed substrate (2), described rotor (1) comprises rotating shaft (3) and magnet ring (4), and rotating shaft (3) to be fixedly connected with magnet ring (4) through magnet ring (4), it is characterized in that: the same surface of described printed substrate (2) is being provided with Hall element (5) near magnet ring (4) place, and described Hall element (5) is electrically connected with printed substrate (4).
2. the checkout gear in rotor speed according to claim 1 and direction, is characterized in that: the plane at described printed substrate (5) place and the center line of rotating shaft (1) perpendicular.
3. the checkout gear in rotor speed according to claim 1 and 2 and direction, is characterized in that: described Hall element (3) is at least provided with three, and is distributed in rotating shaft (1) ringwise around.
4. the checkout gear in rotor speed according to claim 1 and 2 and direction, is characterized in that: the upper and lower surface of described printed substrate (4) all scribbles glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510444700.4A CN104967255A (en) | 2015-07-24 | 2015-07-24 | Device for detecting rotating speed and direction of rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510444700.4A CN104967255A (en) | 2015-07-24 | 2015-07-24 | Device for detecting rotating speed and direction of rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104967255A true CN104967255A (en) | 2015-10-07 |
Family
ID=54221245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510444700.4A Pending CN104967255A (en) | 2015-07-24 | 2015-07-24 | Device for detecting rotating speed and direction of rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104967255A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040004471A1 (en) * | 2000-08-22 | 2004-01-08 | Gunther Haas | Device and method for measuring angles |
| CN201830125U (en) * | 2010-10-30 | 2011-05-11 | 中山大洋电机股份有限公司 | Structure of direct-current brushless motor sensing with Hall element |
| CN202634191U (en) * | 2012-05-28 | 2012-12-26 | 湖北惠洋电器制造有限公司 | Novel roller motor structure used in coiler fan |
| CN204794580U (en) * | 2015-07-24 | 2015-11-18 | 日本电产凯宇汽车电器（江苏）有限公司 | Detection apparatus for rotor speed and direction |
-
2015
- 2015-07-24 CN CN201510444700.4A patent/CN104967255A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040004471A1 (en) * | 2000-08-22 | 2004-01-08 | Gunther Haas | Device and method for measuring angles |
| CN201830125U (en) * | 2010-10-30 | 2011-05-11 | 中山大洋电机股份有限公司 | Structure of direct-current brushless motor sensing with Hall element |
| CN202634191U (en) * | 2012-05-28 | 2012-12-26 | 湖北惠洋电器制造有限公司 | Novel roller motor structure used in coiler fan |
| CN204794580U (en) * | 2015-07-24 | 2015-11-18 | 日本电产凯宇汽车电器（江苏）有限公司 | Detection apparatus for rotor speed and direction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151007 |
|
| RJ01 | Rejection of invention patent application after publication |