CN216904586U

CN216904586U - Brushless motor that radiating effect is good

Info

Publication number: CN216904586U
Application number: CN202123270391.3U
Authority: CN
Inventors: 朱杰
Original assignee: Beisicao Electronics Suzhou Co ltd
Current assignee: Beisicao Electronics Suzhou Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-07-05
Anticipated expiration: 2031-12-23

Abstract

The utility model discloses a brushless motor with good heat dissipation effect, which comprises a front cover, a rear cover and a shell, wherein the front cover, the shell and the rear cover are fixedly connected through bolts, an iron core is arranged in the shell, a rotor space for installing a rotor is arranged in the middle of the iron core, a plurality of winding grooves are arranged on the rotor, coils are wound on the winding grooves, insulation plates matched with the iron core are arranged on the upper side and the lower side of the iron core, the rotor is arranged in the rotor space, a rotating shaft is coaxially arranged on the rotor, one side of the rotating shaft, which is close to the rear cover, is connected with an impeller, an air inlet is formed between two adjacent connecting plates of the rear cover, an air outlet is formed between two adjacent connecting plates of the front cover, an air channel is formed between the two adjacent coils, dustproof mechanisms are arranged on the air inlet and the air outlet, and the motor has simple structure, has better heat dissipation and dust resistance.

Description

Brushless motor with good heat dissipation effect

Technical Field

The utility model relates to the technical field of brushless motors, in particular to a brushless motor with a good heat dissipation effect.

Background

The brushless direct current motor is composed of a motor main body and a driver, and is a typical electromechanical integration product. The brushless direct current motor runs in a self-control mode, so that a starting winding is not additionally arranged on a rotor like a synchronous motor which is started under heavy load under variable frequency speed regulation, oscillation and step loss can not be generated when load suddenly changes, a coil can generate heat when the brushless direct current motor works, an impeller is generally required to be installed on the motor to dissipate heat, and dust in air can be brought into the motor from an air inlet when the impeller rotates.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, embodiments of the present invention provide a brushless motor with a good heat dissipation effect, so as to solve the problems in the foregoing background art.

The embodiment of the application discloses: a brushless motor with good heat dissipation effect comprises a front cover, a rear cover and a shell with openings at two ends, wherein the front cover, the shell and the rear cover are fixedly connected through bolts, an iron core is arranged in the shell, a rotor space for installing a rotor is arranged in the middle of the iron core, a plurality of winding grooves are formed in the rotor, coils are wound on the winding grooves, insulation plates matched with the iron core are arranged on the upper side and the lower side of the iron core, the rotor is installed in the rotor space, a rotating shaft is coaxially arranged on the rotor, two ends of the rotating shaft are respectively connected with the front cover and the rear cover through bearings, one end of the rotating shaft penetrates through the front cover, one side, close to the rear cover, of the rotating shaft is connected with an impeller, an air inlet is formed between two adjacent connecting plates of the rear cover, an air outlet is formed between two adjacent connecting plates of the front cover, and a gap between two adjacent coils of an air channel is formed, the air inlet and the air outlet are both provided with dustproof mechanisms.

Preferably, dustproof mechanism is including locating the air intake with the filter screen of air outlet department, the vertical intercommunication that is equipped with on the casing the air intake with the through-hole of air outlet, swing joint has the montant in the through-hole, the both ends of montant stretch into respectively the air intake with in the air outlet, the bottom and the bottom of montant all are equipped with the scraper blade, the scraper blade supports on the lateral surface of filter screen, the montant stretches into the intraoral partial cover of air intake is equipped with the spring, the both ends of spring are connected respectively the lower terminal surface of scraper blade with on the bottom surface of air intake, the spring is in compression state all the time, the top of montant is fixed with first electro-magnet, the top surface of air intake is fixed with the second electro-magnet, first electro-magnet with the relative one end magnetic pole of second electro-magnet is the same.

Preferably, the front cover, the rear cover and the housing are all made of aluminum alloy materials.

Preferably, the upper end surface of the first electromagnet is connected with a rubber pad.

Preferably, an installation plate is fixed on the end face of the front cover, and a plurality of installation holes are formed in the edge of the installation plate.

The utility model has the following beneficial effects: in the working process of the motor, the rotating shaft drives the impeller to rotate, so that air is sucked from the air inlet and flows through the air channel, heat generated in the working process of the motor is taken out from the air outlet, the motor is prevented from being burnt due to overheating, and the dust prevention mechanism can prevent dust in the air from entering the motor and ensure the heat dissipation effect.

In order to make the aforementioned and other objects, features and advantages of the utility model comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of a part of a brushless motor with a good heat dissipation effect.

Fig. 2 is a schematic diagram of a core structure.

Fig. 3 is a schematic view of the air inlet structure.

Reference numbers to the above figures: 1. a front cover; 2. a rear cover; 3. a housing; 4. a bolt; 5. an iron core; 6. a rotor space; 7. A rotor; 8. a rotating shaft; 9. an impeller; 10. an air inlet; 11. an air outlet; 12. filtering with a screen; 13. a through hole; 14. a vertical rod; 15. A squeegee; 16. a spring; 17. a first electromagnet; 18. a second electromagnet; 19. a winding slot.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, a brushless motor with good heat dissipation effect includes a front cover 1, a rear cover 2 and a housing 3 with openings at two ends, the front cover 1, the rear cover 2 and the housing 3 are connected by bolts 4, an iron core 5 is provided in the housing 3, a rotor space 6 for installing a rotor 7 is provided in the middle of the iron core 5, a plurality of winding slots 19 are provided on the rotor 7, coils are wound on the winding slots 19, a gap between two adjacent coils forms an air duct, insulation plates matched with the iron core 5 are provided at both upper and lower sides of the iron core 5, the rotor 7 is installed in the rotor space 6, a rotating shaft 8 is coaxially provided on the rotor 7, two ends of the rotating shaft 8 are respectively connected with the front cover 1 and the rear cover 2 by bearings, one end of the rotating shaft 8 penetrates through the front cover 1, one side of the rotating shaft 8 close to the rear cover 2 is connected with an impeller 9, be provided with a plurality of air intakes 10 on the global of back lid 2, be provided with a plurality of air outlets 11 on the global of protecgulum 1, the clearance between two adjacent coils constitutes the wind channel, air intake 10 with air outlet 11 goes out and all is equipped with dustproof mechanism, the motor is in the course of the work, pivot 8 drives impeller 9 is rotatory, and then with the air by air intake 10 inhales, the air current flows through the wind channel, with the heat that produces in the motor course of the work by air outlet 11 takes out to prevent that the motor from overheating from burning out, dustproof mechanism can prevent that the dust in the air from getting into in the motor, ensure the radiating effect.

The dustproof mechanism comprises a filter screen 12 arranged at the air inlet 10 and the air outlet 11, a through hole 13 communicated with the air inlet 10 and the air outlet 11 is vertically arranged on the shell 3, a vertical rod 14 is movably connected in the through hole 13, two ends of the vertical rod 14 respectively extend into the air inlet 10 and the air outlet 11, the bottom and the bottom of the vertical rod 14 are respectively provided with a scraper 15, the scraper 15 is supported on the outer side surface of the filter screen 12, a part of the vertical rod 14 extending into the air inlet 10 is sleeved with a spring 16, two ends of the spring 16 are respectively connected to the lower end surface of the scraper 15 and the bottom surface of the air inlet 10, the spring 16 is always in a compressed state, the top end of the vertical rod 14 is fixed with a first electromagnet 17, the top surface of the air inlet 10 is fixed with a second electromagnet 18, and the magnetic poles of the first electromagnet 17 and the opposite end of the second electromagnet 18 are the same, when the motor cuts off the power supply, first electro-magnet 17 with the contact of second electro-magnet 18, scraper 15 is located filter screen 12's top, the motor circular telegram during operation, first electro-magnet 17 with the synchronous circular telegram of second electro-magnet 18, under the effect that like poles repel each other, first electro-magnet 17 promotes montant 14 is downwards, and then the drive scraper 15 downwards will dust on the filter screen 12 strikes off, spring 16 is compressed to prevent that filter screen 12 from blockking up, ensure the radiating effect, after the motor cuts off the power supply, scraper 15 is in spring 16's spring action resets down, clears up filter screen 12 once more.

The front cover 1, the rear cover 2 and the housing 3 are all made of aluminum alloy materials, so that the strength is ensured, and the heat conductivity of the front cover 1, the rear cover 2 and the housing 3 is enhanced.

The upper end face of the first electromagnet 17 is connected with a rubber pad, so that the collision between the first electromagnet 17 and the second electromagnet 18 can be reduced, and the damage can be prevented.

Be fixed with the mounting panel on the terminal surface of protecgulum 1, the edge of mounting panel is equipped with a plurality of mounting holes, is convenient for the installation of motor is fixed.

The beneficial effects of the embodiment of the application are as follows: in the working process of the motor, the rotating shaft 8 drives the impeller 9 to rotate, air is sucked from the air inlet 10 and flows through the air channel, heat generated in the working process of the motor is taken out from the air outlet 11, and therefore the motor is prevented from being burnt due to overheating, dust in the air can be prevented from entering the motor through the dustproof mechanism, and the heat dissipation effect is guaranteed.

The principle and the implementation mode of the utility model are explained by applying specific embodiments in the utility model, and the description of the embodiments is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. The utility model provides a brushless motor that radiating effect is good which characterized in that: comprises a front cover, a rear cover and a shell with openings at two ends, wherein the front cover, the shell and the rear cover are fixedly connected through bolts, an iron core is arranged in the shell, a rotor space for installing a rotor is arranged in the middle of the iron core, a plurality of winding slots are arranged on the rotor, the winding slot is wound with a coil, the upper side and the lower side of the iron core are respectively provided with an insulating plate matched with the iron core, a rotor is arranged in the rotor space, a rotating shaft is coaxially arranged on the rotor, two ends of the rotating shaft are respectively connected with the front cover and the rear cover through bearings, one end of the rotating shaft penetrates through the front cover, one side of the rotating shaft close to the rear cover is connected with an impeller, the periphery of the rear cover is provided with a plurality of air inlets, the periphery of the front cover is provided with a plurality of air outlets, a gap between two adjacent coils forms an air duct, and the air inlets and the air outlets are both provided with dustproof mechanisms.

2. The brushless motor with good heat dissipation effect according to claim 1, wherein: dustproof mechanism is including locating the air intake with the filter screen of air outlet department, the vertical intercommunication that is equipped with on the casing the air intake with the through-hole of air outlet, swing joint has the montant in the through-hole, the both ends of montant stretch into respectively the air intake with in the air outlet, the bottom and the bottom of montant all are equipped with the scraper blade, the scraper blade supports on the lateral surface of filter screen, the montant stretches into the intraoral part cover of air intake is equipped with the spring, the both ends of spring are connected respectively the lower terminal surface of scraper blade with on the bottom surface of air intake, the spring is in compression state all the time, the top of montant is fixed with first electro-magnet, the top surface of air intake is fixed with the second electro-magnet, first electro-magnet with the relative one end magnetic pole of second electro-magnet is the same.

3. The brushless motor with good heat dissipation effect of claim 1, wherein: the front cover, the rear cover and the shell are all made of aluminum alloy materials.

4. The brushless motor with good heat dissipation effect according to claim 2, wherein: the upper end surface of the first electromagnet is connected with a rubber pad.

5. The brushless motor with good heat dissipation effect of claim 1, wherein: the mounting plate is fixed on the end face of the front cover, and a plurality of mounting holes are formed in the edge of the mounting plate.