CN219287309U

CN219287309U - Brushless motor with good heat dissipation

Info

Publication number: CN219287309U
Application number: CN202223307985.1U
Authority: CN
Inventors: 郑士聪; 郑薇薇
Original assignee: Hangzhou Kailai Electronics Co ltd
Current assignee: Hangzhou Kailai Electronics Co ltd
Priority date: 2022-12-10
Filing date: 2022-12-10
Publication date: 2023-06-30
Anticipated expiration: 2032-12-10

Abstract

The utility model relates to the technical field of brushless motors and discloses a brushless motor with good heat dissipation, which comprises a shell, wherein air inlets are formed in the upper side and the lower side of the left end and the right end of the shell, filter plates are fixedly connected to the inner walls of the air inlets, fixing rings are fixedly connected to the outer sides of the left end and the right end of the shell, which correspond to the air inlets, a plurality of brush plates are fixedly connected to the inner walls of the fixing rings in a sliding manner, brushes are fixedly connected to the opposite ends of the brush plates, opposite ends of the brushes are arranged at opposite ends of the filter plates, rotating shafts are rotatably connected to the inner walls of the left end and the right end of the shell and penetrate through the shell, and the left side and the right side of the outer wall of the rotating shaft are fixedly connected to one end of the inner sides of the brush plates. When the rotating shaft rotates, the impeller is driven to rotate, air can be sucked into the shell, and heat generated by rotation of the motor is taken away, so that the motor is prevented from being damaged due to overheating, the filter plate is cleaned, the filter plate is prevented from being blocked, and a good heat dissipation effect is ensured all the time.

Description

Good heat dissipation brushless motor of (a)

Technical Field

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

Background

The brushless DC motor is composed of a motor main body and a driver, and is a typical electromechanical integrated product, so that a transistor reversing circuit is adopted to replace a brush and a commutator, the motor has no excitation loss and carbon brush loss, and the multistage deceleration consumption is eliminated.

The existing brushless motor can generate heat when rotating, and the impeller is installed to dissipate heat generally, so that dust in the air can be brought into the motor when rotating, and excessive dust in the motor can damage parts in the motor.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a brushless motor with good heat dissipation.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a brushless motor that heat dissipation is good, includes the casing, both sides all are provided with the wind gap about the casing both ends, the equal fixedly connected with filter of wind gap inner wall, the equal fixedly connected with solid fixed ring in the outside of wind gap is corresponding to both ends about the casing, the equal sliding connection of solid fixed ring inner wall has a plurality of brush boards, the equal fixedly connected with brush of the relative one end of brush board, the relative one end setting of brush is at the opposite sides one end of filter, both ends inner wall rotation connection has the pivot about the casing and runs through the casing, the equal fixedly connected with in brush inboard one end of pivot outer wall left and right sides, the equal fixedly connected with a plurality of impellers of both ends inner wall about the corresponding casing of pivot outer wall.

As a further description of the above technical solution:

the shell is characterized in that fixing blocks are fixedly connected to the inner walls of the front end and the rear end of the shell, an iron core is fixedly connected to one end of each fixing block, and a plurality of winding grooves are formed in the inner wall of each iron core.

As a further description of the above technical solution:

the middle part fixedly connected with rotor of pivot outer wall, the rotor outer wall sets up at the iron core inner wall.

As a further description of the above technical solution:

the shape of the air port is half-moon, and the air ports are symmetrically distributed around the center line of the shell.

As a further description of the above technical solution:

the impeller is symmetrical about a centerline of the housing.

As a further description of the above technical solution:

the number of the brush plates is four, and the brush plates are uniformly and symmetrically arranged.

As a further description of the above technical solution:

the shell is made of aluminum alloy steel.

The utility model has the following beneficial effects

In the utility model, firstly, the motor is started, the rotating shaft rotates, thereby carrying the impeller to rotate, at the moment, air is sucked into the shell, and because the shell is communicated, heat generated when the motor rotates is taken away through air flow, thereby preventing the motor from being damaged due to overheating, dust in the air can be prevented from entering the shell through the filter plate, and the rotating shaft also rotates with the brush plate, the brush plate rotates with the brush, the brush can clean dust on the surface of the filter plate, and the filter plate is prevented from being blocked, so that a good heat dissipation effect can be ensured all the time.

Drawings

Fig. 1 is a front right perspective view of a brushless motor with good heat dissipation;

fig. 2 is a front left perspective view of a brushless motor with good heat dissipation according to the present utility model;

FIG. 3 is a top perspective view of a brushless motor with good heat dissipation according to the present utility model;

fig. 4 is a schematic perspective view of a tuyere structure of a brushless motor with good heat dissipation according to the present utility model.

Legend description:

1. a fixing ring; 2. a rotating shaft; 3. brushing a plate; 4. a brush; 5. a rotor; 6. a housing; 7. a filter plate; 8. an impeller; 9. an iron core; 10. a fixed block; 11. a wire winding groove; 12. and a tuyere.

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.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-4, one embodiment provided by the present utility model is: the utility model provides a brushless motor that heat dissipation is good, including casing 6, both ends about casing 6 all are provided with tuyere 12, the equal fixedly connected with filter 7 of tuyere 12 inner wall, the air passes through tuyere 12 and gets into in the casing 6, and filter 7 can filter the dust in the air, prevent that the dust from getting into in the casing 6, the part in the casing causes the damage, both ends correspond the equal fixedly connected with solid fixed ring 1 in outside of tuyere 12 about the casing 6, gu fixed ring 1 inner wall equal sliding connection has a plurality of brush plates 3, inject brush plate 3 through solid fixed ring 1, make brush plate 3 steadily rotate, brush plate 3 all fixedly connected with brush 4 relative one end, brush 4 relative one end sets up in filter 7 opposite ends, through, brush 4 cleans filter 7, prevent that filter 7 from being blockked up, ensure the radiating effect, both ends inner wall rotation is connected with pivot 2 and runs through casing 6 about the pivot 2 outer wall equal fixedly connected with a plurality of impellers 8 about the inside of casing 6, motor start-up, thereby prevent that brush plate 3 from being rotated through the equal fixedly connected with of solid fixed ring 1 inside the inside of casing 6, thereby prevent that the brush plate from being rotated by the motor 2, the equal fixedly connected with brush plate 3 when the inside surface of the casing is difficult to rotate by the filter plate 7, the filter plate is rotated through the filter plate 7, prevent that the filter plate from being rotated by the filter plate 3 when the heat is rotated by the filter plate 3, the inside surface is prevented from being polluted by the filter plate 3, the filter plate is rotated through the filter plate 3 when the filter plate is rotated, the surface is rotated by the filter plate 3 when the filter plate is in the inside the filter plate is in the time when the casing is in the time when the time the filter plate is rotated, and the filter plate is in the time is the time when the filter is easy, and the filter is the time is the filter is easy and the time is easy and has the 3, and has the heat 3.

Further explained, the inner walls of the front end and the rear end of the shell 6 are fixedly connected with fixing blocks 10, the opposite ends of the fixing blocks 10 are fixedly connected with iron cores 9, the iron cores 9 are limited by the fixing blocks 10, a plurality of winding grooves 11 are formed in the inner walls of the iron cores 9, rotors 5 are fixedly connected to the middle parts of the outer walls of the rotating shafts 2, the outer walls of the rotors 5 are arranged on the inner walls of the iron cores 9, coils are wound in the winding grooves 11, the coils are electrified to generate an electromagnetic field, the rotating shafts 5 rotate, the air openings 12 are in a half-moon shape, the air openings 12 are symmetrically distributed about the center line of the shell 6, the upper side and the lower side of the air openings are simultaneously ventilated during ventilation, heat generated by the motors is taken away from the two sides, a better heat dissipation effect is achieved, impellers 8 are symmetrically arranged about the center line of the shell 6, the number of brush plates 3 is four, dust on the filter plates 7 is evenly and symmetrically arranged, and the materials of the shell 6 are aluminum alloy steel when the brush plates 3 rotate.

Working principle: firstly, the motor is started, the rotating shaft 2 rotates, so that the impeller 8 is driven to rotate, air is sucked into the shell 6, and because the shell 6 is communicated, heat generated during motor rotation is taken away through air flow, so that the motor is prevented from being overheated and damaged, dust in the air can be prevented from entering the shell 6 through the filter plate 7, and the brush plate 3 rotates with the brush plate 3 when the rotating shaft 2 rotates, the brush plate 4 can clean dust on the surface of the filter plate 7, the filter plate 7 is prevented from being blocked, and accordingly a good heat dissipation effect can be ensured all the time.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a brushless motor that heat dissipation is good, includes casing (6), its characterized in that: both sides all are provided with wind gap (12) about both ends about casing (6), the equal fixedly connected with filter (7) of wind gap (12) inner wall, the equal fixedly connected with solid fixed ring (1) in the outside of wind gap (12) is corresponding to both ends about casing (6), the equal sliding connection of solid fixed ring (1) inner wall has a plurality of brush boards (3), the equal fixedly connected with brush (4) of brush board (3) relative one end, the opposite one end setting of brush (4) is at filter (7) one end that is on the back of the body, both ends inner wall rotation is connected with pivot (2) about casing (6) and runs through casing (6), the equal fixedly connected with in brush board (3) inboard one end in pivot (2) outer wall, the equal fixedly connected with a plurality of impellers (8) of both ends inner wall inboard about casing (6) are corresponding to pivot (2) outer wall.

2. A well-cooled brushless motor as described in claim 1, wherein: the inner walls of the front end and the rear end of the shell (6) are fixedly connected with fixing blocks (10), one end, opposite to the fixing blocks (10), of each fixing block is fixedly connected with an iron core (9), and a plurality of winding grooves (11) are formed in the inner wall of each iron core (9).

3. A well-cooled brushless motor as described in claim 1, wherein: the middle part of the outer wall of the rotating shaft (2) is fixedly connected with a rotor (5), and the outer wall of the rotor (5) is arranged on the inner wall of the iron core (9).

4. A well-cooled brushless motor as described in claim 1, wherein: the shape of the air port (12) is half-moon, and the air port (12) is symmetrically distributed about the central line of the shell (6).

5. A well-cooled brushless motor as described in claim 1, wherein: the impeller (8) is symmetrical about the centre line of the housing (6).

6. A well-cooled brushless motor as described in claim 1, wherein: the number of the brush plates (3) is four, and the brush plates (3) are uniformly and symmetrically arranged.

7. A well-cooled brushless motor as described in claim 1, wherein: the shell (6) is made of aluminum alloy steel.