CN201774428U - Direct current brushless electric machine - Google Patents
Direct current brushless electric machine Download PDFInfo
- Publication number
- CN201774428U CN201774428U CN2010202240384U CN201020224038U CN201774428U CN 201774428 U CN201774428 U CN 201774428U CN 2010202240384 U CN2010202240384 U CN 2010202240384U CN 201020224038 U CN201020224038 U CN 201020224038U CN 201774428 U CN201774428 U CN 201774428U
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- magnet ring
- groove
- electric machine
- brushless motor
- mounting kit
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Abstract
The utility model discloses a direct current brushless electric machine which comprises an electric machine shell (1), a stator component (2) and a rotor component (3) which are arranged in the electric machine shell (1), wherein the rotor component (3) comprises a rotor iron core (4) and a revolving shaft (5) supported on the rotor iron core (4); the shaft extension end of the revolving shaft (5) is provided with a magnet ring (6); one end of the electric machine shell (1) is provided with an end closure (7); the centre of the outer end surface of the end closure (7) is provided with a groove (8); the magnet ring (6) is arranged in the groove (8); and a Hall induction device is arranged outside the groove (8) and is close to the magnet ring (6). The direct current brushless electric machine has reasonable integral structure and layout, is easy to be arranged, and has good reliability and low cost; when the magnetic field of the magnet ring of a Hall element changes, signals can not be seriously affected, thus ensuring the accuracy and stability of induction. Therefore, the direct current brushless electric machine has low noise and can be conveniently controlled.
Description
Technical field:
The utility model relates to a kind of dc brushless motor.
Background technology:
The magnetic material that the rotor core of high efficiency DC brushless motor uses is divided into two classes: a class is more weak ferrite of magnetic or bonding rubidium iron boron, and another kind of is the sintering rubidium iron boron that adopts ferromagnetic material.There are the following problems like this: when 1) rotor core used more weak ferrite of magnetic or bonding rubidium iron boron, often inner Hall element and the magnet ring placed of this type of motor made motor volume bigger, consumes a large amount of copper and iron, and cost is higher; When 2) rotor core used ferromagnetic material sintering rubidium iron boron, magnetic was very strong, if Hall element and magnet ring are arranged on electric machine casing inside, just had very big interference during the Hall element induced signal so, influenced certainty of measurement, caused controlling inaccuracy even inefficacy.
For this reason, part motor manufacturer is arranged on the outside of electric motor end cap with Hall element and magnet ring, but the following problem of ubiquity: the mounting structure layout of Hall element, magnet ring is reasonable inadequately, install inconvenient, less reliable, cost is higher.
Summary of the invention:
The purpose of this utility model provides a kind of external magnet ring and Hall element, and is rationally distributed, compact conformation, and low cost is easy to the dc brushless motor of good reliability is installed.
The purpose of this utility model is to be achieved by following technical scheme.
A kind of dc brushless motor, comprise electric machine casing, be arranged on stator module and rotor assembly in the electric machine casing, rotor assembly comprises rotor core and the rotating shaft that is bearing on the rotor core, on the shaft extension end of rotating shaft, be provided with magnet ring, end at electric machine casing is provided with end cap, and the outer face central authorities of this end cap are provided with groove, and magnet ring is arranged on the groove the inside, outside at groove also is provided with the hall sensing device, and the hall sensing device is near reaction magnetic ring.
Above-mentioned described hall sensing device comprises wiring board and the mounting kit that Hall element is installed, and mounting kit one end is connected with wiring board, and other end supporting is connected on the outer end of end cap.
Above-mentioned described mounting kit is provided with some root posts, has several through holes on the wiring board, and through hole and column scarf mutually close.
The middle part of above-mentioned described mounting kit is provided with convex ring body, and convex ring body is nested in the groove the inside, and the outer edge surface of convex ring body and the wall of groove closely cooperate.
The above-mentioned described outside at groove forms cylinder, cylinder is provided with installation foot outward, has screw on the installation foot, all is provided with the bar hole of upper-lower position correspondence on wiring board and mounting kit, screw passes bar hole and screw, and wiring board, mounting kit and installation foot are linked together.
Above-mentioned described several bar holes are arcuation and concyclic.
Above-mentioned described in the groove the inside, magnet ring is installed on the shaft extension end of rotating shaft by the magnet ring support of circle, magnet ring is installed in the lateral surface of magnet ring support, the middle part of magnet ring support is provided with and the rotating shaft hollow axle bed that closes of scarf mutually, the outer end of hollow axle bed is set with axial connection seat, axially the outer end of connection seat is provided with locking nut, and the shaft extension end of locking nut locking connection rotating shaft and compression axis are to connection seat.
Above-mentioned described three location holes that hold Hall element that on the internal face of convex ring body, are provided with.
Above-mentioned described on end cap, the outside of cylinder also is provided with three spokes.
Above-mentioned described mounting kit and wiring board adhesion are integral, and mounting kit and axial connection seat all are to be made by nylon and glass fiber material.
The beneficial effects of the utility model are: 1) end at electric machine casing is provided with end cap, and the outer end of this end cap is provided with groove, and magnet ring is arranged on the groove the inside, outside at groove also is provided with the hall sensing device, the hall sensing device is near reaction magnetic ring, and integral structure layout is reasonable, is easy to install, good reliability, cost is low, can not be subjected to bigger interference during the magnetic field variation signal of Hall element reaction magnetic ring, has guaranteed induction accuracy and stability, noise is little, is beneficial to control; 2) Hall element is installed in the circuit board, places the location hole the inside on the mounting kit, and several bar holes are arcuation and concyclic, have guaranteed the installation concentricity of Hall element, and Installation and Debugging are convenient, the induction precision height of Hall element; 3) magnet ring is installed on the shaft extension end of rotating shaft by the magnet ring support of circle, magnet ring is installed in the lateral surface of magnet ring support, the middle part of magnet ring support is provided with and the rotating shaft hollow axle bed that closes of scarf mutually, the outer end of hollow axle bed is set with axial connection seat, axially the outer end of connection seat is provided with locking nut, locking nut locking connects the shaft extension end of rotating shaft and compression axis to connection seat, compact conformation and firm.
Description of drawings:
Fig. 1 is the part-structure explosive view of the utility model dc brushless motor.
Fig. 2 is the enlarged drawing of A-A among Fig. 1
Fig. 3 is the cut-away view of the utility model dc brushless motor.
Fig. 4 is the enlarged drawing of B-B among Fig. 3.
Fig. 5 is the isometric front view of mounting kit in the utility model hall sensing device.
Fig. 6 is the reverse side stereogram of mounting kit in the utility model hall sensing device.
Embodiment:
Also in conjunction with the accompanying drawings the utility model is described in further detail below by specific embodiment.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, a kind of dc brushless motor, comprise electric machine casing 1, be arranged on stator module 2 and rotor assembly 3 in the electric machine casing 1, rotor assembly 3 comprises rotor core 4 and the rotating shaft 5 that is bearing on the rotor core 4, on the shaft extension end of rotating shaft 5, be provided with magnet ring 6, end at electric machine casing 1 is provided with end cap 7, the outer face central authorities of this end cap 7 are provided with groove 8, magnet ring 6 is arranged on groove 8 the insides, outside at groove 8 also is provided with the hall sensing device, and the hall sensing device is near reaction magnetic ring 6.
In conjunction with Fig. 1 to Fig. 6 as can be known, the hall sensing device comprises wiring board 9 and the mounting kit 10 that Hall element is installed, and mounting kit 10 1 ends are connected with wiring board 9, and other end supporting is connected on the outer end of end cap 7; Mounting kit 10 is provided with some root posts 11, has several through holes 12 on the wiring board 9, and through hole 12 and column 11 scarf mutually close; The middle part of mounting kit 10 is provided with convex ring body 13, and convex ring body 13 is nested in groove 8 the insides, and the wall of the outer edge surface of convex ring body 13 and groove 8 closely cooperates; The outside at groove 8 forms cylinder 14, the cylinder 14 outer installation feet 15 that are provided with, have screw 16 on the installation foot 15, on wiring board 9 and mounting kit 10, all be provided with the bar hole 18 of upper-lower position correspondence, screw 19 passes bar hole 18 and screw 16 successively, and wiring board 9, mounting kit 10 and installation foot 15 are linked together; Several bar holes 18 are arcuation and concyclic; In groove 8 the insides, magnet ring 6 is installed on the shaft extension end of rotating shaft 5 by the magnet ring support 20 of circle, magnet ring 6 is installed in the lateral surface of magnet ring support 20, the middle part of magnet ring support 20 is provided with and the rotating shaft 5 hollow axle bed 21 that closes of scarf mutually, the outer end of hollow axle bed 21 is set with axial connection seat 22, axially the outer end of connection seat 22 is provided with locking nut 23, and the shaft extension end of locking nut 23 locking connection rotating shafts 5 and compression axis are to connection seat 22; On the internal face of convex ring body 13, be provided with three location holes 24 that hold Hall element; On end cap 7, the outside of cylinder 14 also is provided with three spokes 25.
Described mounting kit 10 and wiring board 9 adhesions are integral; Mounting kit 10 and axial connection seat 22 all are to be made by nylon and glass fiber material.
Principle of the present utility model is: at external magnet ring of electric machine casing and Hall element, integral structure layout is reasonable, be easy to install, good reliability, cost is low, can not be subjected to bigger interference during the magnetic field variation signal of Hall element reaction magnetic ring, has guaranteed induction accuracy and stability, noise is little, is beneficial to control.
Claims (10)
1. dc brushless motor, comprise electric machine casing (1), be arranged on stator module (2) and rotor assembly (3) in the electric machine casing (1), rotor assembly (3) comprises rotor core (4) and is bearing in rotating shaft (5) on the rotor core (4), on the shaft extension end of rotating shaft (5), be provided with magnet ring (6), it is characterized in that: the end at electric machine casing (1) is provided with end cap (7), the outer face central authorities of this end cap (7) are provided with groove (8), magnet ring (6) is arranged on groove (8) the inside, outside at groove (8) also is provided with the hall sensing device, and the hall sensing device is near reaction magnetic ring (6).
2. a kind of dc brushless motor according to claim 1, it is characterized in that: the hall sensing device comprises wiring board (9) and the mounting kit (10) that Hall element is installed, mounting kit (10) one ends are connected with wiring board (9), and other end supporting is connected on the outer end of end cap (7).
3. a kind of dc brushless motor according to claim 2 is characterized in that: mounting kit (10) is provided with some root posts (11), has several through holes (12) on the wiring board (9), and through hole (12) and column (11) scarf mutually close.
4. a kind of dc brushless motor according to claim 3, it is characterized in that: the middle part of mounting kit (10) is provided with convex ring body (13), convex ring body (13) is nested in groove (8) the inside, and the wall of the outer edge surface of convex ring body (13) and groove (8) closely cooperates.
5. a kind of dc brushless motor according to claim 4, it is characterized in that: the outside at groove (8) forms cylinder (14), the outer installation foot (15) that is provided with of cylinder (14), have screw (16) on the installation foot (15), on wiring board (9) and mounting kit (10), all be provided with the bar hole (18) of upper-lower position correspondence, screw (19) passes bar hole (18) and screw (16), and wiring board (9), mounting kit (10) and installation foot (15) are linked together.
6. a kind of dc brushless motor according to claim 5 is characterized in that: several bar holes (18) are arcuation and concyclic.
7. according to claim 1 or 2 or 3 or 4 or 5 or 6 described a kind of dc brushless motors, it is characterized in that: in groove (8) the inside, magnet ring (6) is installed on the shaft extension end of rotating shaft (5) by circular magnet ring support (20), magnet ring (6) is installed in the lateral surface of magnet ring support (20), the middle part of magnet ring support (20) is provided with and rotating shaft (5) the hollow axle bed (21) that closes of scarf mutually, the outer end of hollow axle bed (21) is set with axial connection seat (22), axially the outer end of connection seat (22) is provided with locking nut (23), and the shaft extension end of locking nut (23) locking connection rotating shaft (5) and compression axis are to connection seat (22).
8. a kind of dc brushless motor according to claim 4 is characterized in that: be provided with three location holes (24) that hold Hall element on the internal face of convex ring body (13).
9. a kind of dc brushless motor according to claim 5 is characterized in that: the outside last at end cap (7), cylinder (14) also is provided with three spokes (25).
10. a kind of dc brushless motor according to claim 9 is characterized in that: mounting kit (10) and wiring board (9) adhesion are integral, and mounting kit (10) and axial connection seat (22) all are to be made by nylon and glass fiber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202240384U CN201774428U (en) | 2010-06-02 | 2010-06-02 | Direct current brushless electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202240384U CN201774428U (en) | 2010-06-02 | 2010-06-02 | Direct current brushless electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201774428U true CN201774428U (en) | 2011-03-23 |
Family
ID=43754266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202240384U Expired - Lifetime CN201774428U (en) | 2010-06-02 | 2010-06-02 | Direct current brushless electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201774428U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037986A (en) * | 2014-07-06 | 2014-09-10 | 任金瑞 | Position sensing device of high-speed motor of electric vehicle |
| CN104300738A (en) * | 2014-10-30 | 2015-01-21 | 常州东本驱动技术有限公司 | Motor and controller assembly of integrated structure |
| CN106558970A (en) * | 2015-09-28 | 2017-04-05 | 浙江超强机械有限公司 | A kind of non-brush permanent-magnet DC motor |
| CN108233660A (en) * | 2018-03-08 | 2018-06-29 | 中山大洋电机股份有限公司 | A kind of BLDC motors |
| CN111740547A (en) * | 2019-03-22 | 2020-10-02 | 日本电产（大连）有限公司 | Motor, vehicle-mounted product, and method for assembling motor |
-
2010
- 2010-06-02 CN CN2010202240384U patent/CN201774428U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037986A (en) * | 2014-07-06 | 2014-09-10 | 任金瑞 | Position sensing device of high-speed motor of electric vehicle |
| CN104037986B (en) * | 2014-07-06 | 2017-09-22 | 南安市智德机械设备有限公司 | The position sensing device of high-speed motor of electric vehicle |
| CN104300738A (en) * | 2014-10-30 | 2015-01-21 | 常州东本驱动技术有限公司 | Motor and controller assembly of integrated structure |
| CN104300738B (en) * | 2014-10-30 | 2017-04-19 | 范兆军 | Motor and controller assembly of integrated structure |
| CN106558970A (en) * | 2015-09-28 | 2017-04-05 | 浙江超强机械有限公司 | A kind of non-brush permanent-magnet DC motor |
| CN108233660A (en) * | 2018-03-08 | 2018-06-29 | 中山大洋电机股份有限公司 | A kind of BLDC motors |
| CN108233660B (en) * | 2018-03-08 | 2024-04-26 | 中山大洋电机股份有限公司 | BLDC motor |
| CN111740547A (en) * | 2019-03-22 | 2020-10-02 | 日本电产（大连）有限公司 | Motor, vehicle-mounted product, and method for assembling motor |
| CN111740547B (en) * | 2019-03-22 | 2023-02-21 | 日本电产（大连）有限公司 | Motor, vehicle-mounted product, and method for assembling motor |
| CN111740547B8 (en) * | 2019-03-22 | 2023-06-09 | 日本电产（大连）有限公司 | Motor, vehicle-mounted product and motor assembling method |
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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: 20110323 |
|
| CX01 | Expiry of patent term |