阅读说明：本技术 一种径向定位连续可调的电机转子位置检测结构 (A kind of motor rotor position detection structure that radial positioning is continuously adjustable ) 是由 周利华 贾宇琪 于 2019-08-02 设计创作，主要内容包括：本发明公开了一种径向定位连续可调的电机转子位置检测结构,包括机壳、圆环形安装底座、印制板、霍尔元件、磁钢、焊接杆、紧定螺钉、电机转子,所述的圆环形安装底座设置在机壳内部且与机壳内壁贴合,圆环形安装底座上设置有若干焊接杆,所述的印制板设置在圆环形安装底座端面上,所述的霍尔元件安装在印制板上,电机转子设置在机壳内,本发明给电机用转子位置传感器印制板设计了安装底座,用径向固定的方式缩减传感器轴向安装空间,同时可保证传感器定位精确并在圆周上连续可调,削减了产品轴向长度,降低产品的装试难度,提高传感器的定位精度。(The invention discloses the motor rotor position detection structures that a kind of radial positioning is continuously adjusted, including casing, circular ring shape mounting seat, printed board, Hall element, magnet steel, welding bars, holding screw, rotor, the circular ring shape mounting seat is arranged in casing internal and is bonded with casing inner wall, several welding bars are provided in circular ring shape mounting seat, the printed board is arranged on circular ring shape mounting seat end face, the Hall element is mounted in printed board, rotor is arranged in casing, the present invention devises mounting seat to rotor for electromotor position sensor printed board, reduce sensor axis to installation space with radially fixed mode, it can guarantee sensor registration simultaneously and be circumferentially continuously adjusted, reduce product axial length, the dress for reducing product tries difficulty, improve the positioning accuracy of sensor.)

1. a kind of continuously adjustable motor rotor position detection structure of radial positioning, it is characterised in that: including casing (1), annulus Shape mounting seat (2), printed board (3), Hall element (4), magnet steel (5), welding bars (6), holding screw (7), rotor (8), the circular ring shape mounting seat (2) setting is internal in casing (1) and is bonded with casing (1) inner wall, and circular ring shape installs bottom It is provided with several welding bars (6) on seat (2), the printed board (3) is arranged on circular ring shape mounting seat (2) end face, described Hall element (4) be mounted on printed board (3), rotor (8) setting is in the casing (1).

2. a kind of continuously adjustable motor rotor position detection structure of radial positioning according to claim 1, feature exist In: the magnet steel (5) is projected in the axial direction with Hall element (4) and is overlapped.

3. a kind of continuously adjustable motor rotor position detection structure of radial positioning according to claim 1, feature exist It can be rotated freely along 360 ° of circumferencial direction of casing (1) casing (1) is internal in: the circular ring shape mounting seat (2).

4. a kind of continuously adjustable motor rotor position detection structure of radial positioning according to claim 1, feature exist In: welding bars (6) quantity is greater than two.

5. a kind of continuously adjustable motor rotor position detection structure of radial positioning according to claim 1, feature exist In: the printed board (3) is fixed on circular ring shape mounting seat (2) end face by welding bars (6).

6. a kind of continuously adjustable motor rotor position detection structure of radial positioning according to claim 1, feature exist In: rotor (8) trailing exterior surface is provided with several magnet steel (5).

7. a kind of continuously adjustable motor rotor position detection structure of radial positioning according to claim 1, feature exist In: described shell (1) even circumferential is provided with several holding screws (7).

8. a kind of continuously adjustable motor rotor position detection structure of radial positioning according to claim 1, feature exist In: the Hall element (4) is magnetic susceptibility Hall element.

Technical field

The present invention relates to the motor rotor positions that electrical engineering field more particularly to a kind of radial positioning are continuously adjustable Detection structure.

Background technique

With electronic technology development, the application of brushless direct current motor, permasyn morot on Aeronautics and Astronautics is more next It is more extensive, and need motor to have the characteristics that high power density, therefore require motor outer dimension stringent.It is opened to motor When dynamic characteristic has higher requirements or starting load is larger, motor needs to install rotor-position sensor additional.And traditional position Sensor axial dimension is larger, and positioning accuracy is poor, and there are adjustment dead zones.

The solution that the present invention exactly proposes regarding to the issue above.

Summary of the invention

The purpose of the present invention: it proposes a kind of motor rotor position detection structure that radial positioning is continuously adjustable, there is positioning Precision is high, can be continuously adjusted, the feature that axial dimension is short.

Technical solution of the present invention:

A kind of motor rotor position detection structure that radial positioning is continuously adjustable, including casing, circular ring shape mounting seat, print Making sheet, Hall element, magnet steel, welding bars, holding screw, rotor, the circular ring shape mounting seat are arranged in casing It portion and is bonded with casing inner wall, two or more welding bars, the printed board setting is fixed in circular ring shape mounting seat It on circular ring shape mounting seat end face, and is fixed by welding bars, the Hall element is mounted in printed board, rotor It is arranged in casing, the rotor trailing exterior surface is provided with several magnet steel, and the shell even circumferential is provided with Several holding screws.

The magnet steel projects in the axial direction with Hall element to be overlapped.

The circular ring shape mounting seat can be rotated freely in casing internal along 360 ° of casing circumferencial direction.

The Hall element is magnetic susceptibility Hall element.

Beneficial effects of the present invention: a kind of motor rotor position detection structure that radial positioning is continuously adjustable, Hall are proposed The installation printed board of element does not need to fix using conventional screw, and printed board does not need the locating slot of design adjustment, printing The area that plate can efficiently use increases；Sensor circumferential registration is guaranteed by allowance for finish, is eliminated due to screw and positioning The assembling deviation that gap between slot generates, improves positioning accuracy height, replaces axially position to eliminate printing by radial positioning The limited defect of the intrinsic adjustment angle of plate locating slot, mounting process is good, and axial dimension shortens, and eliminates adjustment dead zone.

It the composite can be widely applied to the electric rotatings such as brushless direct current motor, permasyn morot, switched reluctance machines In machine, for detecting the real-time rotor-position of motor for circuit for controlling motor, forming position controls closed loop.

Detailed description of the invention:

Fig. 1 is the present invention rotor-position detection structure schematic diagram continuously adjustable using the radial positioning of Mr. Yu's type motor；

Wherein, 1- casing, 2- circular ring shape mounting seat, 3- printed board, 4- Hall element, 5- magnet steel, 6- welding Bar, 7- holding screw, 8- rotor.

Specific embodiment

Below by specific embodiment, the present invention is described in further detail.

Please refer to Fig. 1, a kind of motor rotor position detection structure that radial positioning is continuously adjustable, including casing 1, circle Annular mounting seat 2, printed board 3, Hall element 4, magnet steel 5, welding bars 6, holding screw 7, rotor 8, the annulus The setting of shape mounting seat 2 is bonded in 1 inside of casing and with 1 inner wall of casing, it is ensured that circular ring shape mounting seat 2 and 1 inner wall of casing are solid It is fixed, two or more welding bars 6 are fixed in circular ring shape mounting seat 2, the setting of printed board 3 installs bottom in circular ring shape On 2 end faces of seat, and it is fixed by welding bars 6, and the Hall element 4 is mounted in printed board 3, the installation print of Hall element 4 Making sheet does not need to fix using conventional screw, and printed board 3 does not need the locating slot of design adjustment, and printed board 3 can be effectively sharp Area increases, and rotor 8 is arranged in casing 1, and 8 trailing exterior surface of rotor is provided with several magnet steel 5, Magnet steel 5 generates rotating excitation field in 8 rotary course of rotor, and it is tight that 1 even circumferential of shell is provided with several Determine screw 7, lateral clamping rings shape mounting seat 2,4 circumferential registration of Hall element is guaranteed by allowance for finish, eliminate by The assembling deviation that gap between screw and locating slot generates improves positioning accuracy height, and it is axial fixed to be replaced by radial positioning Position eliminates the intrinsic limited defect of adjustment angle of 3 locating slot of printed board, and mounting process is good, and axial dimension shortens, and eliminates Adjustment dead zone.

The magnet steel 5 is projected in the axial direction with Hall element 4 and is overlapped, 4 magnetic susceptibility Hall element of Hall element, described Circular ring shape mounting seat 2 can inside casing 1 along 1 circumferencial direction of casing 360 ° rotate freely.

Position sensor is used as using the Hall element 4 of magnetic susceptibility, the printed circuit board 3 of design specialized installs Hall element 4, printed board 3 is installed to circular ring shape mounting seat 2, designs the fastening of radial positioning by the circular ring shape mounting seat 2 of design specialized Structure positions circular ring shape mounting seat 2, reduces the axially mounted space of Hall element 4 with radially fixed mode, while can protect Card 4 registration of Hall element is simultaneously circumferentially continuously adjusted, and reduces product axial length, reduces the dress examination difficulty of product, Improve the positioning accuracy of Hall element 4.

The course of work of the invention: when rotor 8 starts turning, be mounted on the magnet steel 5 of 8 tail portion of rotor with Rotor 8 rotates together, and magnet steel 5 generates rotating excitation field in rotary course, and the Hall element 4 being mounted in printed board 3 is felt The rotating excitation field for answering magnet steel 5 to generate, to judge the current location of rotor 8, staff obtains a certain from Hall element 4 The position of moment rotor 8.

It the composite can be widely applied to the electric rotatings such as brushless direct current motor, permasyn morot, switched reluctance machines In machine, for detecting the real-time rotor-position of motor for circuit for controlling motor, forming position controls closed loop, and the present invention is used for compact 8 position-force control of rotor, the dress trial work skill for reducing the axial length of motor, eliminating adjustment dead zone, improving motor Property.