CN211481093U

CN211481093U - Miniature brushless motor of flexible line way board

Info

Publication number: CN211481093U
Application number: CN202020546101.XU
Authority: CN
Inventors: 张志敏
Original assignee: Jiangsu Jinkun Technology Co ltd
Current assignee: Jiangsu Jinkun Technology Co ltd
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2020-09-11
Anticipated expiration: 2030-04-14

Abstract

The utility model discloses a miniature brushless motor of a flexible circuit board, which relates to the field of brushless motors, comprising a rotor and a casing, wherein a hood is arranged outside the casing, the upper end of the casing is fixedly connected with the hood through a bolt, the center inside the casing is provided with the rotor, the rotor runs through the casing, the lower part of the rotor is fixed with a blade ring, the blade ring is positioned inside the hood and outside the casing, the outer surface of the blade ring is provided with blades, the outer surface of the lower part of the casing is fixed with a heat dissipation plate, the outer surface of the middle part of the casing is fixed with a ventilation ring, the upper end of the ventilation ring is provided with at least one through hole, the through hole runs through the upper end and the lower end of the ventilation ring, the utility model has simple structure, effectively improves the heat dissipation efficiency of the motor through the gas, the motor can be ensured to work continuously and stably.

Description

Miniature brushless motor of flexible line way board

Technical Field

The utility model relates to a brushless motor field specifically is a miniature brushless motor of flexible line way board.

Background

The brushless direct current motor is composed of a motor main body and a driver, and is a typical electromechanical integration product. A brushless motor refers to a motor without a brush and a commutator, and is also called a commutator-less motor. Brushless motor is with the automatic control formula operation, so can not be like the synchronous machine of heavy load start-up under the Variable Frequency Speed Governing (VFSG) add start winding in addition on the rotor, also can not produce vibration and step-out when the load sudden change, it can produce a large amount of heats in the course of the work, pile up in a large number when the inside heat of motor and can cause the life that the damage influences the motor to the motor, some motors adopt the water-cooling according to actual need at present, also some motors adopt the forced air cooling, but prior art can't effectively solve miniature brushless motor's heat dissipation problem.

Disclosure of Invention

The utility model aims at solving the heat dissipation problem of miniature brushless motor for the motor can be used for a long time stably.

The invention provides the following technical scheme:

the utility model provides a miniature brushless motor of flexible line way board, includes the rotor, the casing, the aircraft bonnet is equipped with in the casing outside, bolt and aircraft bonnet fixed connection are passed through to the casing upper end, the rotor is equipped with at the inside center of casing, the rotor runs through the casing, the lower part of rotor is fixed with the flabellum ring, and the flabellum ring is located the aircraft bonnet inside and is located the casing outside, the flabellum is equipped with the flabellum on the flabellum ring, casing lower part external surface is fixed with at least one radiating fin, just is fixed with the ring of ventilating in the radiating fin top at the middle part surface of casing, has seted up at least one through-hole on the.

Furthermore, the middle part of the machine shell is provided with holes with the same number as the through holes in the ventilation ring, the inner ring of the ventilation ring is provided with vent holes with the same number as the through holes, the vent holes are as large as the holes in the machine shell, the vent holes are connected with the through holes, the ventilation ring is fixed on the machine shell, and the vent holes are aligned with the holes.

Through this kind of structure, when the motor during operation, the rotor can rotate, be fixed in the flabellum ring on the rotor and also can rotate, from this drive air from upwards flowing down, carry out the forced air cooling to radiating fin and handle, bring radiating fin's heat into the through-hole that upper portion passes through the ring of ventilating through the air, the aircraft bonnet outside of getting rid of then, low temperature air is inside from upwards getting into the motor, make the hole inflow in the motor hot-air passes through on the motor housing through the wind pressure in the ring of ventilating, the aircraft bonnet outside is got rid of in through the upward movement of the ring of ventilating, through the replacement of radiating fin heat dissipation and the inside hot-air of motor, the effectual mesh to the.

Further, the lower end of the through hole is larger than the upper end, and the structure can enable air to rapidly move upwards after passing through the ventilation ring and flow out of the hood.

Furthermore, the upper end and the lower end of each radiating fin are embedded and fixed on the casing, and heat conduction gel is filled between the middle of each radiating fin and the casing.

Furthermore, the lower end of the machine shell is provided with an air inlet, and the air inlet is provided with a dust screen, so that air can enter the motor through the rotation of the fan blades and dust can be prevented from entering the machine shell.

Further, the filter screen is equipped with to the aircraft bonnet lower extreme, aircraft bonnet upper end edge is equipped with annular exhaust port, the exhaust port slope just is equipped with the dust screen, adopts this kind of structure can make the air from the up-going sport formula down, and more quick outflow is outside to the aircraft bonnet.

Furthermore, the dust guard is arranged at the upper end of the exhaust port, so that external dust is prevented from entering the hood when the motor runs, and the motor is prevented from being polluted.

The invention has the beneficial effects that: through the flabellum rotation, drive the air flow, radiating fin absorbs the heat of motor, and the flabellum air-cools to it, takes the heat out to the motor outside at last, replaces the inside hot-air of motor through the wind pressure simultaneously, reduces the inside temperature of motor, guarantees the heat dissipation of motor through this kind of mode, has guaranteed the life of motor.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a miniature brushless motor of a flexible printed circuit board according to the present invention;

fig. 2 is a front view of a housing of a micro brushless motor of a flexible printed circuit board according to the present invention;

fig. 3 is a bottom view of the miniature brushless motor of the flexible printed circuit board of the present invention;

fig. 4 is a top view of a micro brushless motor of a flexible printed circuit board according to the present invention;

fig. 5 is a top view of a vent ring of a micro brushless motor of a flexible printed circuit board according to the present invention.

Reference numerals: 1. a rotor; 2. a dust-proof plate; 3. a hood; 4. a venting ring; 401. a through hole; 402. an air outlet; 5. a thermally conductive gel; 6. a heat dissipating fin; 7. a housing; 701. an air inlet; 8. a fan blade ring; 801. a fan blade; 9. a filter screen; 10. and (7) an exhaust port.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1-5, a rotor 1 is installed in a casing 7, the rotor 1 penetrates through the casing 7, the casing 7 is installed in a hood 3, a filter screen 9 is installed at the lower end of the hood 3, an annular exhaust port 10 is installed at the edge of the upper end of the hood 3, a dust screen is installed on the exhaust port 10, a dust guard 2 is installed outside the exhaust port 10, a fan blade ring 8 is fixedly installed at the lower part of the rotor 1 between the casing 7 and the hood 3, fan blades 801 are installed on the fan blade ring 8, a heat dissipation fin 6 is installed at the lower part of the casing 7, the upper end and the lower end of the heat dissipation fin 6 are embedded and fixed on the casing 7, a heat conduction gel 5 is filled between the middle part of the heat dissipation fin 6 and the casing 7, the heat dissipation fin 6 is uniformly distributed on the casing 7 along the circumferential direction, an annular ventilation ring 4 is installed at the middle part of the casing 7 above the heat dissipation, the upper end of the through hole 401 is smaller than the lower end, the inner ring of the ventilation ring 4 is also provided with ventilation holes, the ventilation ring of the inner ring is connected with the through hole 401, the connecting part of the casing 7 and the ventilation ring 4 is distributed with air outlets 402 with the same number as the through holes 401, the air outlets 402 are as large as the ventilation holes of the inner ring of the ventilation ring 4 and are aligned with the ventilation holes, the lower end of the casing 7 is provided with an air inlet hole 701, and the air inlet 701 is provided with.

The working mode of the invention is as follows:

the motor circular telegram begins work, rotor 1 rotates, flabellum ring 8 rotates along with rotor 1 rotates, then flabellum 801 rotates, it enters into aircraft bonnet 3 to drive the air through filter screen 9 in, the air is from upward movement down, it enters into in casing 7 to pass through inlet port 701, then it flows out in ventilating ring 4 through venthole 402 to drive the hot-air in casing 7, then outside along with updraft ventilator moves exhaust port 10, radiating fin 6 absorbs the heat of motor through heat conduction gel 5, utilize the rotation of flabellum 801 to carry out the forced air cooling to radiating fin 6 and handle, the heat passes through ventilating ring 4 along with the updraft ventilator and finally gets rid of outside exhaust port 10, realize the heat of motor and get rid of, reach the refrigerated purpose.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a miniature brushless motor of flexible line way board, includes the rotor, casing, its characterized in that: the aircraft bonnet is equipped with in the casing outside, bolt and aircraft bonnet fixed connection are passed through to the casing upper end, the rotor is equipped with at the inside center of casing, the rotor runs through the casing, the lower part of rotor is fixed with the flabellum ring, the flabellum ring is located the aircraft bonnet is inside and is located the casing outside, flabellum ring surface is provided with the flabellum, casing lower part surface gomphosis is fixed with at least one radiating fin, casing middle part surface just is in radiating fin's top gomphosis is fixed with the ring of ventilating, at least one through-hole has been seted up to the ring upper end of ventilating, both ends about the ring of.

2. The miniature brushless motor of flexible circuit board of claim 1, wherein: the casing middle part is equipped with the venthole the same with the last through-hole quantity of ventilation ring, the inner circle of ventilation ring is equipped with the air vent the same with through-hole quantity, the air vent is the same with the venthole on the casing big, the air vent is connected with the through-hole, the ventilation ring is fixed in on the casing just air vent and venthole align.

3. The miniature brushless motor of flexible circuit board of claim 1, wherein: the lower end of the through hole is larger than the upper end.

4. The miniature brushless motor of flexible circuit board of claim 1, wherein: the upper end and the lower end of each radiating fin are embedded and fixed on the casing, and heat conduction gel is filled between the middle of each radiating fin and the casing.

5. The miniature brushless motor of flexible circuit board of claim 1, wherein: the lower end of the machine shell is provided with an air inlet, and the air inlet is provided with a dust screen.

6. The miniature brushless motor of flexible circuit board of claim 1, wherein: the filter screen is equipped with to the aircraft bonnet lower extreme, aircraft bonnet upper end edge is equipped with annular exhaust port, the exhaust port slope just is equipped with the dust screen.

7. The miniature brushless motor of claim 6, wherein: and a dust guard is arranged at the upper end of the exhaust port.