CN220527848U - Device for fixing iron core framework and Hall signal plate of brushless motor - Google Patents

Abstract

The utility model relates to the technical field of motors, in particular to a device for fixing a brushless motor iron core framework and a Hall signal plate, which comprises a stator iron core, an iron core framework, a Hall support and a Hall sensor, wherein a plurality of groups of uniformly arranged mounting grooves are formed in the stator iron core, a plurality of groups of iron core frameworks are further arranged on the stator iron core, the device for fixing the brushless motor iron core framework and the Hall signal plate is characterized in that a supporting plate on the outer side wall and the inner side wall of the iron core framework is provided with a thread positioning hole, the Hall signal plate is provided with four through holes, the Hall sensor is fixed on the Hall support, the Hall signal plate is fixed with the Hall support, pins of the Hall sensor are welded with the Hall signal plate, finally, the Hall signal plate is placed on the iron core framework to be completely fixed through four tapping screws, the production process structure is simple, the equipment strength is high, the situation of edge curling cannot occur, the Hall sensor is stable to install, and the assembly is convenient.

Description

Device for fixing iron core framework and Hall signal plate of brushless motor

Technical Field

The utility model relates to the technical field of motors, in particular to a device for fixing a brushless motor iron core framework and a Hall signal plate.

Background

As known, permanent magnet brushless dc motors are divided into two types, hall and non-hall, wherein the structure of the permanent magnet brushless dc motor with hall has a built-in hall structure, and the traditional fixing device of the built-in hall structure is as follows: a threaded hole is formed in the outer side of the iron core framework, two holes are formed in the outer side of the upper surface of the Hall signal plate, hall signals are fixed on the Hall bracket, the Hall bracket is used for fixing the Hall signal plate, the Hall bracket and the iron core framework are fixed, and finally, the Hall plate is fixed on the same side of the Hall signal plate through two tapping screws;

it has the following disadvantages: the same side of the Hall plate is fixed with the Hall signal plate through two tapping screws, and when the full rate of an enamelling wire groove in the stator core is high, the enamelled wire can prop the Hall plate to cause the upward warping deformation of the Hall signal plate; the Hall signal board is tilted upwards to deform so as to cause friction between the Hall bracket and the internal rotor; the upward warping deformation of the Hall signal plate can cause the change of the Hall position, and the precision of the Hall sensor is affected.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a device for fixing a brushless motor iron core framework and a Hall signal plate.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the device comprises a stator core, an iron core framework, a Hall support and a Hall sensor, wherein a plurality of groups of evenly arranged mounting grooves are formed in the stator core, a plurality of groups of iron core frameworks are further arranged on the stator core, the lower part of the iron core framework is inserted into the mounting grooves, the iron core framework is located above the stator core and provided with a supporting groove with an opening, the Hall support is arranged in the supporting groove, the Hall support is further provided with a positioning groove with an upper opening, the Hall sensor is inserted into the positioning groove, the Hall support is further provided with a Hall signal plate, and the Hall signal plate is provided with a guide hole matched with the Hall sensor.

In order to ensure the stable connection between the Hall signal plate and the iron core framework conveniently, the utility model is improved in that the outer walls of the two sides of the bearing groove far away from the center of the bearing groove are provided with supporting plates with falling holes, the Hall signal plate is also provided with self-tapping screws, and the self-tapping screws are in threaded connection with the supporting plates.

Preferably, pins of the hall sensor are inserted into guide holes of the hall signal plate and welded with the hall signal plate.

(III) beneficial effects

Compared with the prior art, the utility model provides a device for fixing the iron core framework of the brushless motor and the Hall signal plate, which has the following beneficial effects:

this device that brushless motor iron core skeleton and hall signal board are fixed, a thread locating hole is all offered in the backup pad of iron core skeleton lateral wall and inside wall, set up four through-holes on the hall signal board, hall sensor fixes on the hall support, hall signal board and hall support are fixed, hall sensor's pin and hall signal board welding, place hall signal board at last and fix the hall signal board totally through four self-tapping screw above the iron core skeleton, production technology simple structure, equipment intensity is high, the limit condition of warping can not take place, hall sensor installs steadily, the equipment is convenient.

Drawings

FIG. 1 is a schematic diagram of the front view of the structure of the present utility model;

FIG. 2 is an exploded view of the structure of the present utility model;

FIG. 3 is a schematic diagram of a structural core skeleton of the present utility model;

FIG. 4 is a schematic view of a Hall bracket with a structure according to the present utility model;

FIG. 5 is a schematic diagram of a Hall signal plate in accordance with the present utility model.

In the figure: 1. a stator core; 2. an iron core skeleton; 3. a Hall bracket; 4. a hall sensor; 5. a Hall signal plate; 6. self-tapping screw.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the device for fixing the iron core skeleton of the brushless motor and the hall signal plate comprises a stator iron core 1, an iron core skeleton 2, a hall bracket 3 and a hall sensor 4, wherein a plurality of groups of evenly arranged mounting grooves are formed in the stator iron core 1, a plurality of groups of iron core skeletons 2 are further arranged on the stator iron core 1, the lower part of the iron core skeletons 2 is inserted into the mounting grooves, the iron core skeleton 2 is positioned above the stator iron core 1 and is provided with a bearing groove with an opening, the hall bracket 3 is arranged in the bearing groove, a positioning groove with an opening is further formed in the hall bracket 3, the hall sensor 4 is inserted into the positioning groove, a hall signal plate 5 is further arranged on the hall bracket 3, and a guide hole matched with the hall sensor 4 is formed in the hall signal plate 5.

Be provided with the mounting groove on the location iron core, iron core skeleton 2 is the structure that the top is big, and the below is little, conveniently guarantees that iron core skeleton 2 inserts in the mounting groove that corresponds steadily, be provided with the backup pad that takes the sky on the both sides outer wall that the bearing groove was kept away from the bearing groove center, still be provided with self-tapping screw 6 on the hall signal plate 5, the bearing groove of a plurality of groups iron core skeleton 2 is the annular, conveniently assembles curved hall support 3, hall sensor 4's pin inserts hall signal plate 5's guiding hole and with hall signal plate 5 welding, hall sensor 4 and hall signal plate 5 stable connection, hall sensor 4 below inserts in the mounting groove, self-tapping screw 6 with backup pad threaded connection guarantees its stability of assembly under its high condition of intensity, convenient assembling.

In order to describe the possible application scenarios, technical principles, practical embodiments, and the like of the present application in detail, the following description is made with reference to the specific embodiments and the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples and are not intended to limit the scope of protection of the present application.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of the phrase "in various places in the specification are not necessarily all referring to the same embodiment, nor are they particularly limited to independence or relevance from other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in the embodiments may be combined in any manner to form a corresponding implementable technical solution.

Unless defined otherwise, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application pertains; the use of related terms herein is for the description of specific embodiments only and is not intended to limit the present application.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (3)

1. Device that brushless motor iron core skeleton and hall signal board are fixed, including stator core (1), iron core skeleton (2), hall support (3) and hall sensor (4), its characterized in that: the stator core (1) is provided with a plurality of groups of evenly arranged mounting grooves, the stator core (1) is also provided with a plurality of groups of core frameworks (2), the core frameworks (2) are inserted in the mounting grooves, the core frameworks (2) are located the upper side of the stator core (1) is provided with a supporting groove with an opening, the Hall support (3) is arranged in the supporting groove, the Hall support (3) is also provided with a positioning groove with an upper opening, the Hall sensor (4) is inserted in the positioning groove, the Hall support (3) is also provided with a Hall signal plate (5), and the Hall signal plate (5) is provided with a guide hole matched with the Hall sensor (4).

2. The device for fixing the iron core skeleton of the brushless motor with the hall signal board according to claim 1, wherein: the Hall signal plate (5) is further provided with self-tapping screws (6), and the self-tapping screws (6) are in threaded connection with the supporting plates.

3. The device for fixing the iron core skeleton of the brushless motor with the hall signal board according to claim 2, wherein: pins of the Hall sensor (4) are inserted into guide holes of the Hall signal plate (5) and welded with the Hall signal plate (5).