Structure for mounting hall effect sensor of motor

Patent metadata

Field	Value
Publication number	US-9541611-B2
Application number	US-201514825192-A
Country	US
Kind code	B2
Filing date	Aug 13, 2015
Priority date	Nov 8, 2013
Publication date	Jan 10, 2017
Grant date	Jan 10, 2017

Abstract

A structure for mounting a Hall effect sensor, the structure including: a mounting bracket, a mounting plate, a left supporting column, a right supporting column, and a first supporting column. The left supporting column and the right supporting column are protruded upwards from top surfaces of two adjacent teeth at the inner side of a certain winding slot, respectively. The first supporting column is protruded upwards from the top surface of the circular yoke at the outer side of the winding slot. The mounting plate is disposed on top surfaces of the first supporting column, the left supporting column, and the right supporting column. The mounting bracket is installed at the bottom of the mounting plate. The Hall effect sensor is installed in the mounting bracket.

First claim

The invention claimed is:

1. A structure for mounting a Hall effect sensor of a motor, the motor comprising:
a) a rotating shaft;
b) a rotor assembly;
c) a stator assembly, the stator assembly comprising an iron core, an end insulation, and coil windings; the end insulation comprising a circular yoke, a plurality of teeth, and winding slots;
d) a housing assembly, the housing assembly comprising a first cavity; and
e) a Hall effect sensor;
wherein
the rotor assembly is disposed on the rotating shaft, the rotor assembly is nested within the stator assembly, and the rotor assembly and the stator assembly are disposed in the first cavity of the housing assembly; the end insulation is disposed on an end part of the iron core, the coil windings are wound on the end insulation; and the teeth are protruded inwards from the circular yoke, and winding slots are formed between two adjacent teeth; the structure for mounting the Hall effect sensor comprises:

f) a mounting bracket,
g) a mounting plate,
h) a left supporting column,
i) a right supporting column, and
j) a first supporting column;
the left supporting column and the right supporting column are protruded upwards from top surfaces of two adjacent teeth at an inner side of a certain winding slot, respectively; the first supporting column is protruded upwards from a top surface of the circular yoke at an outer side of the winding slot; the mounting plate is disposed on top surfaces of the first supporting column, the left supporting column, and the right supporting column; the mounting bracket is installed at a bottom of the mounting plate; and the Hall effect sensor is installed in the mounting bracket.

2. The structure of claim 1 , wherein the mounting bracket comprises a second cavity at a bottom thereof, and the Hall effect sensor is embedded in the second cavity.

3. The structure of claim 1 , wherein a left base is disposed at a bottom of the left supporting column on the top surface of one tooth; a right base is disposed at a bottom of the right supporting column on the top surface of an adjacent tooth; a mounting slot is formed between the left base and the right base; and the mounting bracket is embedded in the mounting slot and disposed on the top surfaces of the teeth.

4. The structure of claim 2 , wherein a left base is disposed at a bottom of the left supporting column on the top surface of one tooth; a right base is disposed at a bottom of the right supporting column on the top surface of an adjacent tooth; a mounting slot is formed between the left base and the right base; and the mounting bracket is embedded in the mounting slot and disposed on the top surfaces of the teeth.

5. The structure of claim 3 , wherein
an inner wall of the mounting slot, the left base, and the right base form a left neck and a right neck;
two sides of the mounting bracket are convex to form two fixture blocks; and
the mounting bracket is nested in the mounting slot, and the fixture blocks on the two sides of the mounting bracket are locked in the left neck and the right neck, respectively.

6. The structure of claim 4 , wherein
an inner wall of the mounting slot, the left base, and the right base form a left neck and a right neck;
two sides of the mounting bracket are convex to form two fixture blocks; and
the mounting bracket is nested in the mounting slot, and the fixture blocks on the two sides of the mounting bracket are locked in the left neck and the right neck, respectively.

7. The structure of claim 2 , wherein
a plurality of first through holes is disposed at a top of the mounting bracket and communicates with the second cavity;
a plurality of second through holes is disposed on the mounting plate for communicating with the first through holes; and
the Hall effect sensor is embedded in the second cavity, and pins of the Hall effect sensor pass through the first through holes and the second through holes and are in electric connection with an external device.

8. The structure of claim 1 , wherein a plurality of positioning columns is protruded from a top surface of the mounting bracket; the mounting plate comprises mounting holes; the mounting bracket is mounted at a bottom of the mounting plate by assembling the positioning columns with the mounting holes; the mounting plate comprises a plurality of positioning holes, and the mounting plate is disposed on the top surfaces of the first supporting column, the left supporting column, and the right supporting column by assembling the positioning holes with the first supporting column, the left supporting column, and the right supporting column; and the mounting plate also comprises a plurality of lead through holes.

9. The structure of claim 2 , wherein a plurality of positioning columns is protruded from a top surface of the mounting bracket; the mounting plate comprises mounting holes; the mounting bracket is mounted at a bottom of the mounting plate by assembling the positioning columns with the mounting holes; the mounting plate comprises a plurality of positioning holes, and the mounting plate is disposed on the top surfaces of the first supporting column, the left supporting column, and the right supporting column by assembling the positioning holes with the first supporting column, the left supporting column, and the right supporting column; and the mounting plate also comprises a plurality of lead through holes.

10. The structure of claim 1 , wherein the housing assembly comprises: a housing, a front end cover and a rear end cover disposed at two ends of the housing, respectively; a middle of a top surface of the front end cover is protruded upwards to form an upper bearing seat; a bearing cavity is disposed in the upper bearing seat; an outer wall of the upper bearing seat is provided with a plurality of first stiffeners; a bottom wall of the bearing cavity is convex downwards from a bottom surface of the front end cover and forms a lower bearing seat; and an outer wall of the lower bearing seat is provided with a plurality of second stiffeners.

11. The structure of claim 2 , wherein the housing assembly comprises: a housing, a front end cover and a rear end cover disposed at two ends of the housing, respectively; a middle of a top surface of the front end cover is protruded upwards to form an upper bearing seat; a bearing cavity is disposed in the upper bearing seat; an outer wall of the upper bearing seat is provided with a plurality of first stiffeners; a bottom wall of the bearing cavity is convex downwards from a bottom surface of the front end cover and forms a lower bearing seat; and an outer wall of the lower bearing seat is provided with a plurality of second stiffeners.

12. The structure of claim 10 , wherein an outer edge of the front end cover protrudes a plurality of mounting feet, two sides of the mounting feet are provided with third stiffeners, and the third stiffeners are connected to the outer edge of the front end cover.

13. The structure of claim 11 , wherein an outer edge of the front end cover protrudes a plurality of mounting feet, two sides of the mounting feet are provided with third stiffeners, and the third stiffeners are connected to the outer edge of the front end cover.

14. The structure of claim 10 , wherein the rear end cover comprises: a rear bearing seat, and four supporting arms extended from an outer wall of the rear bearing seat; the four supporting arms are arranged in a pattern of the character “X”; two mounting seats are symmetrically disposed at the outer edge of the top surface of the front end cover; and screws pass through the supporting arms and the stator assembly and are i

Assignees

• Zhongshan Broad Ocean Motor Co

Inventors

• Wang Xiongcheng
• Fu Guiwen
• Yu Yueqiang

Classifications

• H02K11/215

  Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements · CPC title

• H02K3/522

  for generally annular cores with salient poles · CPC title

• G01R33/0047

  Housings or packaging of magnetic sensors (packaging of semiconductor devices H10W99/00); Holders · CPC title

• G01R33/072 Primary

  Constructional adaptation of the sensor to specific applications · CPC title

• G01R33/07

  Hall effect devices · CPC title