CN218603317U

CN218603317U - Take hall external rotor electric machine

Info

Publication number: CN218603317U
Application number: CN202222236993.5U
Authority: CN
Inventors: 蔡孝猛; 潘献忠
Original assignee: Changzhou Hengyi Motor Co ltd
Current assignee: Changzhou Hengyi Motor Co ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2023-03-10
Anticipated expiration: 2032-08-24

Abstract

The utility model discloses a take hall external rotor electric machine. The motor comprises a base and an outer rotor arranged on the base, wherein a rotating shaft of the outer rotor is rotatably inserted into the base; a Hall sensor is arranged on a contact surface of the base, which is in contact with the outer rotor, a position magnetic ring is arranged on the bottom surface of the outer rotor, and the S pole of the position magnetic ring faces the Hall sensor; the space is utilized to the maximum extent, the Hall sensor is not required to be fixed by a screw, and the Hall sensor can stably receive the magnetic field change of the position magnetic ring.

Description

Take hall external rotor electric machine

Technical Field

The utility model relates to a take hall external rotor electric machine.

Background

The fan motor is generally referred to as a motor fan. The motor fan is a motor with fan hub and blades, and has uniformly distributed slots along the outer circumference of the fan hub, and the blades are inserted into the slots, and the blades and the fan hub are integrated into one body by means of permanent connection method of welding and sticking, etc.

At present, motors run at a constant speed under a rated voltage without rotating speed regulation, and in order to increase the speed regulation range of the motors, the rotating speed feedback of the motors is needed, and the voltage is regulated through the rotating speed feedback to enable the motors to run at a specified rotating speed; the prior external rotor motor has the following defects:

1. the motor can only operate under rated voltage again;

2. the motor has no rotating speed feedback;

3. the motor cannot regulate the speed.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides an outer rotor motor with hall having rotational speed feedback.

Realize the technical scheme of the utility model as follows

A motor with Hall outer rotor comprises a base and an outer rotor arranged on the base, wherein a rotating shaft of the outer rotor is rotatably inserted into the base; a Hall sensor is installed on a contact surface of the base, which is in contact with the outer rotor, a position magnetic ring is installed on the bottom surface of the outer rotor, and the S pole of the position magnetic ring faces the Hall sensor.

The end face of the engine base shell is connected with a Hall support through a screw, a placing groove for installing a Hall sensor is formed in the top face of the Hall support, and lug seats connected with the end face of the engine base shell are arranged on the Hall supports on the two sides of the placing groove.

The side of standing groove both sides all is equipped with the slot, and two slots set up relatively.

And the convex block on the bottom surface of the outer rotor is provided with a mounting hole, and the position magnetic ring is arranged in the mounting hole and is in tight fit with the mounting hole.

And the machine base shell on one side of the placing groove is also provided with a threading hole.

And a protective coil is arranged on the threading hole.

The Hall sensor is a single-stage Hall sensor.

By adopting the technical scheme, the Hall sensor is fixed by the Hall support, the Hall assembly is inserted into the Hall support groove, the Hall assembly is not fixed by screws, and after the assembly is completed, the Hall assembly is free of loosening risk and convenient to circulate. Meanwhile, the Hall support and the Hall assembly are very small, the space of the motor is fully utilized, the space utilization is maximized, and the Hall sensor is not required to be fixed by screws. The position magnetic ring is strong magnetic, and the Hall sensor can stably receive the change of a magnetic field.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of a housing of the engine base of the present invention;

FIG. 3 is a schematic view of the Hall bracket of the present invention;

FIG. 4 is a schematic view of the position magnet ring structure of the present invention;

in the attached drawing, 1 is a machine base, 2 is an outer rotor, 3 is a rotating shaft, 4 is a Hall sensor, 5 is a position magnetic ring, 6 is an S pole, 7 is a Hall support, 8 is a placing groove, 9 is an ear seat, 10 is a slot, 11 is a lug, 12 is a mounting hole, 13 is a threading hole, 14 is a protective coil, and 15 is a thermal protector.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention will be combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

Referring to fig. 1, which shows a structural schematic diagram of the present application, a motor with a hall outer rotor comprises a machine base 1 and an outer rotor 2 arranged on the machine base, wherein a rotating shaft 3 of the outer rotor is rotatably inserted into the machine base; a Hall sensor 4 is arranged on a contact surface of the machine base, which is in contact with the outer rotor, a position magnetic ring 5 is arranged on the bottom surface of the outer rotor, and an S pole 6 of the position magnetic ring faces the Hall sensor. The voltage is adjusted by increasing the Hall rotating speed feedback, so that the motor operates in a regular rotating speed range; when the rotor rotates, the position magnetic ring is far away from and close to the Hall sensor; and the running state of the motor is judged by receiving the high and low levels of the Hall sensor.

The end face of the engine base shell is connected with a Hall support 7 through a screw, the top face of the Hall support is provided with a placing groove 8 for mounting a Hall sensor, and the Hall supports on the two sides of the placing groove are provided with lug seats 9 connected with the end face of the engine base shell. The Hall support is arranged for installing the Hall sensor, and the Hall support is installed on the base shell, so that the Hall sensor is convenient to disassemble and assemble.

The side of standing groove both sides all is equipped with slot 10, and two slots set up relatively. The circuit board of the Hall sensor can be directly inserted into the slot, and the installation is convenient and fast.

The convex block 11 on the bottom surface of the outer rotor is provided with a mounting hole 12, and the position magnetic ring is arranged in the mounting hole and is in tight fit with the mounting hole.

And the machine base shell on one side of the placing groove is also provided with a threading hole 13. Through setting up the through wires hole, the cable of the hall sensor subassembly of being convenient for penetrates the installation.

And a protective coil 14 is arranged on the threading hole to protect the cable.

The Hall sensor is a single-stage Hall sensor. When the S pole is close to the Hall, the Hall is switched on to output a low level, and when the magnetic field is far away from the Hall, the Hall is switched off to output a high level.

A thermal protector 15 is also mounted on the housing.

Claims

1. The motor with the Hall outer rotor is characterized by comprising a base and an outer rotor arranged on the base, wherein a rotating shaft of the outer rotor is rotatably inserted into the base; a Hall sensor is installed on a contact surface of the base, which is in contact with the outer rotor, a position magnetic ring is installed on the bottom surface of the outer rotor, and the S pole of the position magnetic ring faces the Hall sensor.

2. The outer rotor motor with hall sensor of claim 1, wherein the end surface of the housing is connected to a hall bracket by a screw, the hall bracket has a slot on the top for mounting the hall sensor, and the hall brackets on both sides of the slot are provided with lugs connected to the end surface of the housing.

3. The outer rotor motor with the hall according to claim 2, wherein the side surfaces of both sides of the placing groove are provided with slots, and the two slots are arranged oppositely.

4. The Hall outer rotor motor according to claim 1, wherein a mounting hole is formed in the protrusion on the bottom surface of the outer rotor, and the position magnetic ring is mounted in the mounting hole and is in tight fit with the mounting hole.

5. The outer rotor motor with the hall as claimed in claim 2, wherein a threading hole is further formed on the housing at one side of the placement groove.

6. The Hall external rotor motor according to claim 5, wherein a protective coil is mounted on the threading hole.

7. The outer rotor motor with the hall of claim 1, wherein the hall sensor is a single-stage type hall sensor.