CN203691163U - DC motor capable of distinguishing rotation direction - Google Patents
DC motor capable of distinguishing rotation direction Download PDFInfo
- Publication number
- CN203691163U CN203691163U CN201320812109.6U CN201320812109U CN203691163U CN 203691163 U CN203691163 U CN 203691163U CN 201320812109 U CN201320812109 U CN 201320812109U CN 203691163 U CN203691163 U CN 203691163U
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- hall element
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Abstract
The utility model aims to settle a technical problem of providing a DC motor capable of distinguishing rotation direction. For settling the technical problem, the DC motor capable of distinguishing rotation direction provided by the utility model comprises a fixed part and a rotatable part. The DC motor is characterized in that: one in the rotatable part and the fixed part is connected with a three-component magnetic ring, and the circumferential side of the other one in the rotatable part and the fixed part, which is connected with the three-component magnetic ring, is provided with a Hall sensor; and the three-component magnetic ring comprises an N-pole area, an S-pole area and a non-magnetized area.
Description
Technical field
The utility model relates to electric seat of car position adjustment motor, relates in particular to a kind of direct current machine.
Background technology
In automobile, for making driver's energy comfortable operation steering wheel of different height or making occupant have the comfortable space of taking, require so automotive seat attitude to regulate.According to the mode difference regulating, automotive seat can be divided into automatic seat and manual seat.
The adjustment of automatic seat position mainly realizes by the motion of motor.On high-grade automatic seat, be also provided with position memory function and position reset function, when seat is transferred to optimum position, by seat memory function key, seat optimum position is preserved, if changed during this time occupant and adjusted seat position, occupant need to be transferred to applicable optimum position seat, and only need to click reset key just can recover to adjust position last time.
The memory of seat position at present and recovery are mainly completed by Hall element and controller.Hall element is pressed close to be arranged on the circumference of magnet ring, and magnet ring Zhi Fenliangge district (N polar region and S polar region), magnet ring often circles, and Hall element just sends a low and high level, and controller calculates low and high level number, determines the information of seat present position.Because this Hall element signal be can not determine turning to of motor, in the time that seat is met some obstacle in the adjustment process of position, cause motor rotation be obstructed or reverse, capital rotates seat motor rotor, Hall element sends low and high level, cause the many numerations of controller or miscount, make enumeration data and seat physical location generation deviation, due to the unpredictability of miscount, director demon can not be distinguished miscount, the consequence of this deviation accumulation is, the position that seat position substantial deviation is set.When occupant is by reset key, seat can not be got back to the optimum position of expectation, and occupant may feel like a hen on a hot girdle.Now seat has just lost this memory function and reset function.
In existing motor, because Hall element signal can not be distinguished turning to of motor, easily cause controller miscount, seat can accurately adjusted position not put.
Obviously, the performance of motor is one of major reason determining automatic seat comfort level.Along with the development of automobile market, consumer requires also more and more higher to the cost performance of automatic seat.Therefore, design one individual character can better motor be necessary.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of distinguishable direct current machine turning to.
For solving the problems of the technologies described above, the utility model provides a kind of distinguishable direct current machine turning to, comprise standing part and rotating part, be characterized in, be connected three somatotype magnet rings at rotating part with the side on standing part, the circumference of the corresponding three somatotype magnet rings of the upper connection of the opposing party is placed Hall element, and this three somatotypes magnet ring comprises N polar region, S polar region and without magnetized area.
The described distinguishable direct current machine turning to, its further feature is, N polar region, S polar region and be all 120 degree without central angle corresponding to magnetized area.
The described distinguishable direct current machine turning to, its further feature is that described Hall element is latch Hall sensor.
The described distinguishable direct current machine turning to, its further feature is, and the described rotating part that described three somatotype magnet rings are installed is electronics armature spindle, and the described standing part that described Hall element is installed is casing.
The described distinguishable direct current machine turning to, its further feature is, and described standing part comprises casing, magnetic shoe, carbon brush, and described rotating part comprises rotor, armature spindle, commutator.
Whenever rotor rotates one week, Hall element is just exported low and high level signal, and multi-form according to outputs level signals can be differentiated turning to and revolution of motor.This motor application, in the adjustment of automotive seat position, makes automotive seat position adjust turning to revolution of motor and obtains clearly simultaneously, thereby make the adjustment of automotive seat position more accurate.
Brief description of the drawings
The above and other feature of the present utility model, character and advantage are by by becoming more obvious below in conjunction with the description of drawings and Examples, wherein:
Fig. 1 is the vertical view of the distinguishable direct current machine turning to of an embodiment of the utility model.
Fig. 2 is the cutaway view along A-A line in Fig. 1 of an embodiment of the utility model.
Fig. 3 is the cutaway view along B-B line in Fig. 2 of an embodiment of the utility model.
Fig. 4 is the structure chart of the three somatotype magnet rings of an embodiment of the utility model.
Fig. 5 is the stereogram of the three somatotype magnet rings of an embodiment of the utility model.
Fig. 6 is three somatotype magnet rings and the Hall element relative position relation schematic diagram of an embodiment of the utility model.
Fig. 7 is that the three somatotype magnet rings of an embodiment of the utility model are rotated counterclockwise schematic diagram.
Fig. 8 is the oscillogram of the Hall element output of an embodiment of the utility model.
Fig. 9 is the three somatotype magnet rings of an embodiment of the utility model schematic diagrames that turn clockwise.
Figure 10 is the oscillogram of the Hall element output of an embodiment of the utility model.
Embodiment
Below in conjunction with specific embodiments and the drawings, the utility model is described in further detail; set forth in the following description more details so that fully understand the utility model; but the utility model obviously can be implemented with the multiple alternate manner that is different from this description; those skilled in the art can do similar popularization, deduction according to practical situations without prejudice to the utility model intension in the situation that, therefore should be with the content constraints of this specific embodiment protection range of the present utility model.
Fig. 1 to Fig. 3 has shown the unitary construction of direct current machine, and Fig. 4 to Figure 10 has shown the distinguishable principle turning to.It should be noted that these and follow-up other accompanying drawing are all only as example, it is not to draw according to the condition of equal proportion, and should be using this as the protection range of the utility model actual requirement is construed as limiting.
As shown in Figure 1 to Figure 3, the distinguishable direct current machine turning to comprises standing part and rotating part, and standing part comprises casing 1, magnetic shoe 2, carbon brush 5, and rotating part comprises rotor 3, armature spindle 4, commutator 6.Hall element 8 and three somatotype magnet rings 7 can arrange respectively on standing part and rotating part, and in embodiment as shown in the figure, Hall element 8 is attached on casing 1, the circumference of corresponding three somatotype magnet rings 7, and three somatotype magnet rings 7 are arranged on armature spindle 4.
As shown in Figure 4 and Figure 5, three somatotype magnet rings 7 are divided equally for N polar region 71, S polar region 72 and without magnetized area 73, and its corresponding central angle is 120 degree.In other embodiments, be appreciated that by description described later, three somatotype magnet rings 7 at least comprise N polar region 71, S polar region 72 and without magnetized area 73, also can separate again other districts, and San Ge district neither divide equally, the waveform that can make Hall element 8 export when needing only clockwise, rotating counterclockwise is different.
Three somatotype magnet rings 7 are arranged on rotor axis of electric 4, three somatotype magnet rings 7 rotate along with the rotation of rotor 3, on casing 1 corresponding to the circumference of pressing close to three somatotype magnet rings 7, a Hall element 8 is installed, preferably latch-type of Hall element 8, therefore in the time that Hall element 8 leaves pole region, can keep original output level constant.Hall element 8 external cord and controller (in figure for illustrating) are connected, thereby controller can be read the low and high level signal that Hall element 8 is exported.
As shown in Fig. 6 and Fig. 7, Fig. 8, in the time that magnet ring 7 is rotated counterclockwise, Hall element 8 is in the time of N polar region 71, output high level (Uh), while forwarding to without magnetized area 73, keeps original level value, output high level (Uh), while forwarding S polar region 72 to, Hall element 8 is exported the trailing edge of square wave wave mode again, output low level (Ul).While forwarding N polar region 71 to, Hall element 8 is exported the rising edge of square wave wave mode again, output high level (Uh), and Hall element 8 has completed the level signal output of one-period.Hall element 8 is along with the rotation of magnet ring 7, and outputs level signals is gone round and begun again down.Trailing edge of every appearance, represents that motor has rotated one week, and controller just does revolution plus coujnt No. one time, thereby can calculate the number of turns of electric machine rotation, according in each level signal cycle, there are continuously two high flat signals again, can judge that motor is rotated counterclockwise.
As shown in Figure 9 and Figure 10, in the time that magnet ring 7 turns clockwise, Hall element 8 is in the time of N polar region 71, output high level (Uh), while forwarding S polar region 72 to, Hall element 8 is exported the trailing edge of square wave wave mode, output low level (Ul), while forwarding to again without magnetized area 73, keep original level value, output low level (Ul), then while forwarding N polar region 71 to, Hall element 8 is exported the rising edge of square wave wave mode, output high level (Uh).Hall element 8 is along with the rotation of magnet ring 7, and outputs level signals is gone round and begun again down.Rising edge of every appearance, represents that motor has rotated one week, and controller just does revolution plus coujnt No. one time, thereby can calculate the number of turns of electric machine rotation, according in each level signal cycle, there are continuously two low flat signals again, can judge that motor is rotated counterclockwise.
Therefore, in the time that occupant presses the memory function key of seat, controller is just under the revolution of motor and the preservation of direction of rotation information, when next time, occupant was again by reset key, controller reads preserved motor revolution and direction of rotation information, revolution and the direction of rotation of controlling motor, reset accurately thereby realize seat.
Although the utility model with preferred embodiment openly as above, it is not for limiting the utility model, and any those skilled in the art, not departing from spirit and scope of the present utility model, can make possible variation and amendment.Therefore, every content that does not depart from technical solutions of the utility model, any amendment, equivalent variations and the modification above embodiment done according to technical spirit of the present utility model, within all falling into the protection range that the utility model claim defines.
Claims (5)
1. the distinguishable direct current machine turning to, comprise standing part and rotating part, it is characterized in that, be connected three somatotype magnet rings at rotating part with the side on standing part, the circumference of the corresponding three somatotype magnet rings of the upper connection of the opposing party is placed Hall element, and this three somatotypes magnet ring comprises N polar region, S polar region and without magnetized area.
2. the distinguishable direct current machine turning to as claimed in claim 1, is characterized in that, N polar region, S polar region and be all 120 degree without central angle corresponding to magnetized area.
3. the distinguishable direct current machine turning to as claimed in claim 1, is characterized in that, described Hall element is latch Hall sensor.
4. the distinguishable direct current machine turning to as claimed in claim 1, is characterized in that, the described rotating part that described three somatotype magnet rings are installed is electronics armature spindle, and the described standing part that described Hall element is installed is casing.
5. the distinguishable direct current machine turning to as claimed in claim 1, is characterized in that, described standing part comprises casing, magnetic shoe, carbon brush, and described rotating part comprises rotor, armature spindle, commutator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320812109.6U CN203691163U (en) | 2013-12-10 | 2013-12-10 | DC motor capable of distinguishing rotation direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320812109.6U CN203691163U (en) | 2013-12-10 | 2013-12-10 | DC motor capable of distinguishing rotation direction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203691163U true CN203691163U (en) | 2014-07-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320812109.6U Expired - Fee Related CN203691163U (en) | 2013-12-10 | 2013-12-10 | DC motor capable of distinguishing rotation direction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203691163U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108797433A (en) * | 2017-04-28 | 2018-11-13 | 杭州拓海电子有限公司 | A kind of intelligent space lock of hall sensing limit |
| CN110799380A (en) * | 2017-04-25 | 2020-02-14 | 罗伯特·博世有限公司 | Electrically rotatable child seat, in particular for fastening to a motor vehicle seat |
| CN114279470A (en) * | 2021-12-17 | 2022-04-05 | 上海艾为电子技术股份有限公司 | Latching Hall sensor and electronic device |
-
2013
- 2013-12-10 CN CN201320812109.6U patent/CN203691163U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110799380A (en) * | 2017-04-25 | 2020-02-14 | 罗伯特·博世有限公司 | Electrically rotatable child seat, in particular for fastening to a motor vehicle seat |
| CN108797433A (en) * | 2017-04-28 | 2018-11-13 | 杭州拓海电子有限公司 | A kind of intelligent space lock of hall sensing limit |
| CN114279470A (en) * | 2021-12-17 | 2022-04-05 | 上海艾为电子技术股份有限公司 | Latching Hall sensor and electronic device |
| CN114279470B (en) * | 2021-12-17 | 2024-06-07 | 上海艾为电子技术股份有限公司 | Latching hall sensor and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20161210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |