CN206804028U - Power window one electronic type absolute value encoder device - Google Patents
Power window one electronic type absolute value encoder device Download PDFInfo
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- CN206804028U CN206804028U CN201720310411.XU CN201720310411U CN206804028U CN 206804028 U CN206804028 U CN 206804028U CN 201720310411 U CN201720310411 U CN 201720310411U CN 206804028 U CN206804028 U CN 206804028U
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Abstract
It the utility model is related to power window control technology field, and in particular to a kind of power window one electronic type absolute value encoder device.Including magnet ring, reserve battery, electronic type absolute value encoder tablet, orthogonal optical encoder and magnetic induction switch, electronic type absolute value encoder tablet is fixedly connected through motor rotary shaft with the End cover for motor, magnet ring is arranged between the electronic type absolute value encoder tablet and lenticular lenses, and it is fixedly connected through motor rotary shaft with the lenticular lenses, magnetic induction switch is oppositely arranged with the magnet ring, magnetic induction switch is no less than three, and reserve battery output end electrically connects with magnetic induction switch.Orthogonal optical encoder and magnetic induction switch integral type are arranged on motor rotary shaft, pass through orthogonal optical encoder-driven motor rotation, and the absolute position of door is obtained by magnetic induction switch, so as to realize the high-precision control of door, without external orthogonal optical encoder to realize the acquisition of a position.
Description
Technical Field
The utility model relates to an electric door and window control technical field, concretely relates to integrative electronic type absolute value encoder device of electric door and window.
Background
The existing electric door and window control system generally adopts a frequency converter motor or a servo motor as an actuating mechanism, an external absolute value encoder is additionally arranged on a door scroll, and a door is controlled by sensing a position signal of the external absolute value encoder. When the door is closed, the actuating mechanism is decelerated and stopped to be locked to the door closing position. The precision and the reliability of the external absolute value encoder are directly related to the precision and the stability of control, and the external absolute value encoder also plays a role in limiting and protecting.
Because split type external absolute value encoder need install additional on the door spool, its installation with the motor can not go on in step, needs the installer to carry out extra installation to the concentricity of requirement installation bearing, the order of wiring after the installation are accurate, need improve electric door and window control system's reliability through improving installer's technical ability, because the discrepancy of installer technical ability, can increase the experience that the terminal customer used, and holistic installation cost and use cost are all than higher. The absolute value encoder is divided into mechanical and electronic implementations. The mechanical absolute value encoder is driven by a multi-stage gear, mechanical multi-circle information is stored through scales of the gear, but due to the forward and reverse mechanical gaps of the gear, the accuracy and consistency of the multi-circle absolute value encoder realized by the mode cannot be guaranteed, and the high-accuracy door and window control system is limited. The electronic absolute value encoder can solve the problem of accuracy caused by forward and reverse clearances by sleeving an additional permanent magnet on a transmission shaft and then installing a magnetic sensor on the transmission shaft in a coaxial manner, but the split installation manner naturally suffers from various defects.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a need not follow-up installation, integrative electronic type absolute value encoder device of electric door and window that the precision is high, the low-power consumption.
The utility model relates to an electric door and window integrated electronic absolute value encoder device, which comprises a motor end cover and a motor rotating shaft, wherein a grating sheet is arranged on the motor rotating shaft, the grating sheet is an annular grating sheet with slits uniformly distributed along the circumferential direction, and the device also comprises a magnetic ring, a standby battery, an electronic absolute value encoder induction plate, and an orthogonal optical encoder and a magnetic induction switch which are arranged at the inner side of the electronic absolute value encoder induction plate, the electronic absolute value encoder induction plate passes through the motor rotating shaft and is fixedly connected with the motor end cover, the magnetic ring is arranged between the electronic absolute value encoder induction plate and the grating sheet and passes through the motor rotating shaft and is fixedly connected with the grating sheet, the magnetic induction switch and the magnetic ring are oppositely arranged, the number of the magnetic induction switches is not less than three, the output end of the standby battery is connected with the magnetic induction switch, and the signal output end of the magnetic induction switch is connected with a data processing chip of the electronic absolute value encoder induction plate.
Furthermore, the magnetic induction switch is around electronic type absolute value encoder tablet center is fan-shaped and arranges, and the phase difference between the adjacent magnetic induction switch is 120/N, N is the magnetic pole logarithm of motor.
Further, the orthogonal optical encoder and the grating sheet are any combination with a slit not exceeding 2500.
Furthermore, the magnetic ring is any magnetizing magnetic pole which is not more than 10 pairs of poles and is arranged according to the number of the magnetic poles of the motor.
The utility model has the advantages that: set up quadrature optical encoder and magnetic induction switch integral type in the motor shaft, rotate through quadrature optical encoder drive motor, and acquire the absolute position of door through the magnetic induction switch to realize the high accuracy control of door, realize the absolute value encoder function, need not external absolute value encoder on the door spool, simple to operate. Because the magnetic induction switch low power dissipation can drive through backup battery, even if the system falls the power failure, also can guarantee the record of motor rotor absolute position, and it is convenient to maintain, and stability is higher.
Drawings
FIG. 1 is a schematic view of an exploded structure of an integrated electronic absolute encoder apparatus according to the present invention;
FIG. 2 is a front view of the integrated electronic absolute value encoder device of the present invention;
FIG. 3 is a waveform diagram of the output of the quadrature optical encoder of the present invention;
fig. 4 is a waveform diagram of the output of the magnetic induction switch of the present invention;
in the figure: 1-electronic absolute value encoder induction plate, 2-magnetic ring, 3-grating sheet, 4-motor shaft, 5-motor end cover, 6-orthogonal optical encoder, 7-magnetic induction switch.
Detailed Description
The present invention is further illustrated by the following specific examples:
as shown in fig. 1 and 2, the present invention includes an electronic absolute value encoder sensor board 1, a magnetic ring 2, a grating sheet 3, a motor shaft 4, a motor end cover 5, an orthogonal optical encoder 6, and a magnetic induction switch 7. The grating sheet 3 is an annular grating sheet with slits uniformly distributed along the circumferential direction, and the grating sheet 3 is arranged on the motor rotating shaft 4 in a penetrating way and fixed on the motor rotating shaft 4 through an inner hexagonal bolt. A convex ring is arranged on the outer side of the grating sheet 3 (namely, the side far away from the end cover 5 of the motor), and the magnetic ring 2 is sleeved and fixed on the grating sheet 3 through the convex ring. The electronic absolute value encoder induction plate 1 is a U-shaped plate and is fixed on the end cover 5 of the motor through a stud, and the central position of the electronic absolute value encoder induction plate 1 penetrates through the rotating shaft 4 of the motor. The magnetic induction switches 7 are fixed on the inner side of the electronic absolute value encoder induction plate 1, the magnetic induction switches 7 are arranged in a fan shape around the center of the electronic absolute value encoder induction plate 1, the magnetic induction switches 7 are not more than the outer diameter of the magnetic ring 2 according to the center distance of the electronic absolute value encoder induction plate 1, and the orthogonal optical encoder 6 is fixed at the position, corresponding to the grating sheet 3, of the electronic absolute value encoder induction plate 1. And a standby battery and a power supply switching device are also arranged and used for switching on the standby battery through the power supply switching device to supply power to the magnetic induction switch 7 when the motor is powered off. The power supply switching device is composed of two diodes, cathodes of the two diodes are connected in parallel, and anodes of the two diodes are respectively connected with the standby battery and the power supply. The electronic absolute value encoder induction plate 1 is internally integrated with a data processing chip for performing operation processing on signals input by the magnetic induction switch 7.
The orthogonal optical encoder 6 and the grating sheet 3 are any combination with slits not exceeding 2500, the magnetic ring 2 is any magnetizing magnetic pole not exceeding 10 pairs of stages arranged according to the number of magnetic pole pairs of the motor, and the static current of the magnetic induction switch 7 is less than 10 uA.
As shown in fig. 2, the quadrature optical encoder 6 monitors the rotation of the grating stripe on the grating sheet 3 along with the rotation of the motor shaft 4, and generates A, B signals with a phase difference of 90 degrees on the quadrature optical encoder 6. The accuracy of the orthogonal optical encoder 6 is determined by the number of lines of the grating (i.e. the number of slits) L of the grating 3, for example, when the grating rotates for one mechanical cycle for 2500 lines, both the a signal and the B signal will generate 2500 pulses, and by the 4-frequency multiplication technique, the a/B signal can divide one mechanical cycle into 10000 pulses, so that the resolution corresponds to a mechanical angle (90 degrees/L). And the position of the motor rotor is calculated according to the frequency and the phase output by the A/B signal, and the orthogonal signal of the A/B is externally sent through an RS422 interface and is provided for the positioning detection of the accurate position of the motor when the controller runs.
As shown in fig. 3, the rotation of the motor shaft 4 generates 3 magnetic switching signals with 120-degree phase difference, i.e., HA, HB, and HC signals, on the three magnetic induction switches. Assuming that the number of pole pairs of the motor is N, the mechanical layout positions of the 3 magnetic induction switches differ by 120 degrees/N. Such as: the difference of the positions of the electromechanical layout of the 2 pairs of stages is 60 degrees, the difference of the positions of the electromechanical layout of the 3 pairs of stages is 40 degrees, the difference of the positions of the electromechanical layout of the 4 pairs of stages is 30 degrees, and the like.
For a motor with N pole pairs, the mechanical rotor rotates one turn 360 degrees, corresponding to N turns of electrical angle, so one turn of the mechanical rotor corresponds to N × 360 degrees of electrical angle. The electrical angle is taken as a coordinate, the 360-degree electrical angle is divided into 6 sectors with increasing serial numbers according to the clockwise direction, each sector is a 60-degree electrical angle, namely, the 6 sectors corresponding to each electrical circle respectively have the following serial numbers according to the clockwise direction: 1-2-3-4-5-6. HA. The HB and HC signals are high and low level signals, and at any time, according to the high and low level sequence of the received HA, HB, and HC signals, a unique sector can be determined, for example: HA. When the HB and HC signals are 100, the sequence number is 2 corresponding to the second sector, which is a region having an electrical angle of 60 ° to 120 °. Comparing the sequence numbers of the sectors corresponding to the HA, HB and HC signals at each moment with the sequence number at the previous moment, when the sequence numbers are changed, jumping the edge once for the sectors, and judging the rotating direction of the motor rotor according to the increasing or decreasing sequence numbers. Thereby outputting absolute position information of the rotor of the motor, including: the mechanical rotation number information C of the motor rotor, the mechanical angle information S of the motor rotor and the rotation direction of the motor rotor. Wherein,the sector has a forward hopping number of n1 and a reverse hopping number of n 2.
When the motor rotor jumps 8 times from the first sector along the increasing direction of the serial number of the sector and 10 times along the decreasing direction of the serial number of the sector, the following explanation takes N as 2, that is: 1-2-3-4-5-6-1-2-3-2-1-6-5-4-3-2-1-6-5, when in the second week of electrical perspective, the default number of the second week is added by 6, i.e. the hopping sequence is: 1-2-3-4-5-6-7-8-9-8-7-6-5-4-3-2-1-6-5, when the rotor of the motor is in the sector with the first cycle serial number of 5 in electrical angle (because the reverse jump number is greater than the forward jump number, according to the piecewise function formula of C and S, namely the reverse 2 th sector in 12 sectors).The complete number of mechanical angles representing the rotation of the motor rotor is 0 circle;it is shown that the mechanical angle of the motor rotor is 1/6, i.e. one revolution of the mechanical angle has rotated 1/6 revolutions in the counter clockwise direction. And finally, outputting the absolute position information obtained by calculation through an RS485 bus.
The above description is only for the specific embodiments of the present invention, and it should be noted that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention.
Claims (4)
1. The utility model provides an integrative electronic type absolute value encoder device of electric door and window, includes motor end cover, motor shaft, install the grating piece in the motor shaft, the grating piece is slit along circumferencial direction evenly distributed's cyclic annular grating piece, its characterized in that: still include magnetic ring, stand-by battery, electronic type absolute value encoder tablet and install the inboard quadrature optical encoder of electronic type absolute value encoder tablet and magnetic induction switch, electronic type absolute value encoder tablet passes the motor shaft with motor end cover fixed connection, the magnetic ring set up in between electronic type absolute value encoder tablet and the grating piece, and pass the motor shaft with grating piece fixed connection, the magnetic induction switch with the magnetic ring sets up relatively, the magnetic induction switch is no less than three, the stand-by battery output passes through power supply auto-change over device and is connected with magnetic induction switch, the signal output part of magnetic induction switch with the data processing chip of electronic type absolute value encoder tablet is connected.
2. The electric door and window integrated electronic absolute value encoder device of claim 1, wherein: the magnetic induction switch winds the center of an induction plate of the electronic absolute value encoder is arranged in a fan shape, the phase difference between adjacent magnetic induction switches is 120 degrees/N, and N is the magnetic pole number of the motor.
3. The electric door and window integrated electronic absolute value encoder device of claim 1, wherein: the orthogonal optical encoder and the grating sheet are any combination with a slit below 2500.
4. The electric door and window integrated electronic absolute value encoder device of claim 1, wherein: the magnetic ring is any magnetizing magnetic pole below 10 pairs of poles arranged according to the number of the magnetic poles of the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720310411.XU CN206804028U (en) | 2017-03-28 | 2017-03-28 | Power window one electronic type absolute value encoder device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720310411.XU CN206804028U (en) | 2017-03-28 | 2017-03-28 | Power window one electronic type absolute value encoder device |
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| Publication Number | Publication Date |
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| CN206804028U true CN206804028U (en) | 2017-12-26 |
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| CN201720310411.XU Active CN206804028U (en) | 2017-03-28 | 2017-03-28 | Power window one electronic type absolute value encoder device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218957A (en) * | 2017-03-28 | 2017-09-29 | 武汉宝久创美科技有限公司 | Power window one electronic type absolute value encoder device and its data processing method |
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- 2017-03-28 CN CN201720310411.XU patent/CN206804028U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218957A (en) * | 2017-03-28 | 2017-09-29 | 武汉宝久创美科技有限公司 | Power window one electronic type absolute value encoder device and its data processing method |
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| TR01 | Transfer of patent right |
Effective date of registration: 20230628 Address after: Building 17, No. 30, Jiangda Road, Huaqiao Street, Jiang'an District, Wuhan City, Hubei Province 430000 Patentee after: Wuhan Baojiu Electronics Co.,Ltd. Address before: 430070, 5th Floor, Building A1, Zone 2, Wuda Hangyu, Wuda Science and Technology Park, Donghu Development Zone, Wuhan City, Hubei Province Patentee before: WUHAN POWEVER ELECTRONIC CO.,LTD. |
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| TR01 | Transfer of patent right |