CN214314871U

CN214314871U - Brushless motor with ventilation and heat dissipation performance

Info

Publication number: CN214314871U
Application number: CN202023172090.2U
Authority: CN
Inventors: 陈伟; 邹宇涛
Original assignee: Jiangyin Hangyuan Aviation Technology Co ltd
Current assignee: Jiangyin Hangyuan Aviation Technology Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-09-28
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a brushless motor with ventilation cooling performance belongs to brushless motor technical field. A brushless motor with ventilation and heat dissipation performances comprises a casing, wherein a front end cover and a rear end cover are respectively connected to two ends of the casing, an air outlet is formed in the outer wall of the front end cover, a dustproof mechanism matched with the air outlet is connected to the outer wall of the front end cover, an air inlet is formed in the outer wall of the rear end cover, a dustproof net is connected between the rear end cover and the casing, a stator assembly is connected to the inner wall of the casing, a fixed seat is further connected to the inner wall of the casing, a rotating shaft is rotatably connected to the inside of the fixed seat through a bearing, a rotor assembly is connected to the outer wall of the rotating shaft, the rotor assembly is arranged in the inner ring of the stator assembly, heat dissipation holes are formed in the outer wall of the stator assembly, a rotating seat is connected to the outer wall of the rotating shaft, and fan blades are connected to the outer wall of the rotating seat; the utility model discloses when distributing away the heat of motor self inside, can also avoid external impurity to enter into in the motor, guarantee the normal operation of motor.

Description

Brushless motor with ventilation and heat dissipation performance

Technical Field

The utility model relates to a brushless motor technical field especially relates to a brushless motor with ventilation heat dispersion.

Background

The brushless motor is a typical electromechanical integration product, and because the brushless DC motor runs in a self-control mode, 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, and oscillation and step loss are not generated when the load suddenly changes.

Brushless motor's stator setting is in the motor casing, and brushless motor during operation, and the stator can produce the heat, because the stator seals in the motor casing to the heat dispersion of casing is relatively poor, and this just leads to the unable heat dissipation of stator, and brushless motor's heat dispersion is not good, and along with brushless motor's operating time extension, the temperature in the motor casing is more and more high, will lead to brushless motor performance to descend, and damage easily.

At present, the most common method for heat dissipation of brushless motor is air cooling, through setting up the flabellum in the casing inside, set up the through-hole simultaneously on the casing, the flabellum produces the air flow, distributes away the heat from the through-hole along with wind together, and this kind of radiating mode is comparatively direct to thermal giving off, but the shortcoming just lies in that the impurity outside the casing gets into in the casing through the through-hole easily to cause the influence to brushless motor's normal operating.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem existing in the prior art, and the brushless motor with ventilation and heat dissipation performance who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a brushless motor with ventilation heat dispersion, includes the casing, the both ends of casing are connected with front end housing and rear end cap respectively, the front end housing outer wall is dug there is the air outlet, the front end housing outer wall is connected with the dustproof mechanism with air outlet matched with, the rear end housing outer wall is dug there is the air intake, be connected with the dust screen between rear end cap and the casing, inner wall of the housing is connected with stator module, inner wall of the housing still is connected with the fixing base, it is connected with the pivot to rotate through the bearing in the fixing base, pivot outer wall connection has the rotor subassembly, stator module's inner circle is arranged in to the rotor subassembly, stator module outer wall is dug there is the louvre, pivot outer wall connection has the rotation seat, it has the flabellum to rotate seat outer wall connection.

Preferably, the dustproof mechanism comprises a fixed plate and a dustproof plate, the fixed plate is fixedly connected to the outer wall of the front end cover, the dustproof plate is connected to the outer wall of the air outlet in a sliding mode, and a spring telescopic rod is connected between the fixed plate and the dustproof plate.

Preferably, sliding connection has the carriage release lever in the front end housing, the carriage release lever offsets with the dust guard activity, carriage release lever outer wall connection has the movable plate, the front end housing outer wall chisel have with movable plate matched with recess, the carriage release lever outer wall has cup jointed elastic element, elastic element's both ends are connected respectively at the outer wall of movable plate and the inner wall of recess, pivot outer wall connection has the dead lever, the dead lever offsets with the diapire activity of carriage release lever.

Preferably, the diapire of dust guard chisels there is the shrinkage pool, just the inner wall of shrinkage pool is provided with the inclined plane with carriage release lever matched with.

Preferably, the rear end cover comprises a first shell, a second shell and a third shell, the first shell is in threaded connection with the outer wall of the shell, the second shell is fixedly connected between the first shell and the third shell, and the air inlet is formed in the outer wall of the third shell.

Preferably, the air inlets are at least ten, and the air guide directions of the ten air inlets are different.

Compared with the prior art, the utility model provides a brushless motor with ventilation heat dispersion possesses following beneficial effect:

1. this brushless motor with ventilation cooling performance, it rotates to drive the flabellum through the pivot, make the flabellum blow to the louvre with the heat that the motor operation produced, and at pivot pivoted in-process, make dead lever extrusion carriage release lever, the carriage release lever atress removes and offsets with the dust guard, the dust guard removes, it is uncovered to make the air outlet, and then make the hot-air discharge from the air outlet, simultaneously because the effect of wind power, in impurity can't get into the air outlet under the general condition, after the motor shutdown, the pivot no longer makes dead lever extrusion carriage release lever, the air outlet is plugged up again to the dust guard, the utility model discloses when distributing away the inside heat of motor self, can also avoid external impurity to enter into in the motor, guarantee the normal operation of motor.

2. This brushless motor with ventilation cooling performance through set up the dust screen between rear end cap and casing, avoids inside dust impurity etc. gets into the casing from the air intake, influences the normal operating of motor.

3. This brushless motor with ventilation cooling performance, it is different through the air inlet direction setting with a plurality of air intakes, the air of being convenient for wind direction diverse behind the air intake passageway, make the air between dust screen and the air intake disorderly, the air strikes the dust screen from all directions, can prevent that the dust adhesion from causing the jam on the dust screen surface, it is unobstructed to ensure the dust screen, effectively improves dust filter effect, and guarantees the inside normal circulation of air of casing.

Drawings

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

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is an exploded view of the structure of the present invention;

fig. 4 is a schematic structural diagram of a portion a in fig. 3 according to the present invention;

fig. 5 is a schematic structural diagram of the rear end cap of the present invention.

In the figure: 1. a housing; 101. a stator assembly; 1011. heat dissipation holes; 102. a fixed seat; 2. a front end cover; 201. an air outlet; 3. a rear end cap; 301. a first housing; 302. a second housing; 303. a third housing; 3031. an air inlet; 4. a rotating shaft; 401. a rotor assembly; 402. a rotating seat; 4021. a fan blade; 5. a dust screen; 6. a fixing plate; 601. a dust-proof plate; 6011. concave holes; 602. a spring telescopic rod; 7. a travel bar; 701. moving the plate; 702. an elastic element; 8. a groove; 9. and (5) fixing the rod.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other; the specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-4, a brushless motor with ventilation and heat dissipation performance, including a housing 1, two ends of the housing 1 are respectively connected with a front end cover 2 and a rear end cover 3, an air outlet 201 is cut on an outer wall of the front end cover 2, an anti-dust mechanism matched with the air outlet 201 is connected on an outer wall of the front end cover 2, an air inlet 3031 is cut on an outer wall of the rear end cover 3, a dust screen 5 is connected between the rear end cover 3 and the housing 1, an inner wall of the housing 1 is connected with a stator assembly 101, an inner wall of the housing 1 is further connected with a fixing seat 102, a rotating shaft 4 is rotatably connected in the fixing seat 102 through a bearing, an outer wall of the rotating shaft 4 is connected with a rotor assembly 401, an inner ring of the stator assembly 101 is arranged in the rotor assembly 401, a heat dissipation hole 1011 is cut on an outer wall of the stator assembly 101, an outer wall of the rotating shaft 4 is connected with a rotating seat 402, and an outer wall of the rotating seat 402 is connected with a fan blade 4021.

Dustproof mechanism includes fixed plate 6 and dust guard 601, and fixed plate 6 fixed connection is at the outer wall of front end housing 2, and dust guard 601 sliding connection is connected with spring telescopic link 602 between fixed plate 6 and the dust guard 601 at the outer wall of air outlet 201.

Sliding connection has the carriage release lever 7 in front end housing 2, and carriage release lever 7 offsets with the activity of dust guard 601, and carriage release lever 7 outer wall is connected with

movable plate

701, and 2 outer walls of front end housing chisels have the recess 8 with movable plate 701 matched with, and the outer wall of carriage release lever 7 has cup jointed elastic element 702, and the outer wall at movable plate 701 and the inner wall of recess 8 are connected respectively at the both ends of

elastic element

702, and 4 outer wall connections in pivot have dead lever 9, and dead lever 9 offsets with the diapire activity of carriage release lever 7.

A concave hole 6011 is bored in the bottom wall of the dust-proof plate 601, and an inclined surface matched with the moving rod 7 is arranged on the inner wall of the concave hole 6011.

The motor is in the use, drive flabellum 4021 through pivot 4 and rotate, make flabellum 4021 blow to louvre 1011 with the heat that the motor operation produced, and reach front end housing 2 through louvre 1011, and at pivot 4 pivoted in-process, make dead lever 9 extrusion carriage release 7, carriage release lever 7 atress removal offsets with dust guard 601, dust guard 601 removes, it is uncovered to make air outlet 201, and then make hot-air follow air outlet 201 discharge, simultaneously because the effect of wind force, impurity can't get into in the air outlet 201 under the general condition, after the motor shut down, the pivot is not 4 again makes dead lever 9 extrusion carriage release 7, air outlet 201 is plugged up again to dust guard 601, the utility model discloses when distributing out the inside heat of motor self, can also avoid external impurity to enter in the motor, guarantee the normal operation of motor.

Example 2:

referring to fig. 1, 2 and 5, a brushless motor having ventilation and heat dissipation functions is substantially the same as embodiment 1, and further, the rear end cap 3 includes a first housing 301, a second housing 302 and a third housing 303, the first housing 301 is screwed with an outer wall of the housing 1, the second housing 302 is fixedly connected between the first housing 301 and the third housing 303, and an air inlet 3031 is disposed on an outer wall of the third housing 303.

The number of the air inlets 3031 is at least ten, and the air guide directions of the ten air inlets 3031 are different.

The air inlet direction through with a plurality of air intakes 3031 sets up differently, the air of being convenient for wind direction diverse behind air intake 3031 passageway, make the air between dust screen 5 and air intake 3031 disorderly, dust screen 5 is strikeed from all directions to the air, can prevent that the dust adhesion from causing the jam on 5 surfaces of dust screen, ensure that dust screen 5 is unobstructed, effectively improve dust filter effect, and the dust that blows off drops in second casing 302, through rotating first casing 301, make rear end cover 3 open, clear up the dust, guarantee the inside normal circulation of air of casing 1.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The brushless motor with the ventilation and heat dissipation performance comprises a machine shell (1) and is characterized in that a front end cover (2) and a rear end cover (3) are connected to two ends of the machine shell (1) respectively, an air outlet (201) is formed in the outer wall of the front end cover (2), a dustproof mechanism matched with the air outlet (201) is connected to the outer wall of the front end cover (2), an air inlet (3031) is formed in the outer wall of the rear end cover (3), a dustproof net (5) is connected between the rear end cover (3) and the machine shell (1), a stator assembly (101) is connected to the inner wall of the machine shell (1), a fixing seat (102) is further connected to the inner wall of the machine shell (1), a rotating shaft (4) is rotatably connected to the fixing seat (102) through a bearing, a rotor assembly (401) is connected to the outer wall of the rotating shaft (4), and the rotor assembly (401) is arranged in the inner ring of the stator assembly (101), the outer wall of the stator assembly (101) is provided with heat dissipation holes (1011), the outer wall of the rotating shaft (4) is connected with a rotating seat (402), and the outer wall of the rotating seat (402) is connected with fan blades (4021).

2. The brushless motor with ventilation and heat dissipation functions as claimed in claim 1, wherein the dust-proof mechanism comprises a fixing plate (6) and a dust-proof plate (601), the fixing plate (6) is fixedly connected to the outer wall of the front end cover (2), the dust-proof plate (601) is slidably connected to the outer wall of the air outlet (201), and a telescopic spring rod (602) is connected between the fixing plate (6) and the dust-proof plate (601).

3. The brushless motor with ventilation and heat dissipation functions as claimed in claim 2, wherein a moving rod (7) is slidably connected in the front end housing (2), the moving rod (7) movably abuts against the dust-proof plate (601), a moving plate (701) is connected to an outer wall of the moving rod (7), a groove (8) matched with the moving plate (701) is formed in an outer wall of the front end housing (2), an elastic element (702) is sleeved on an outer wall of the moving rod (7), two ends of the elastic element (702) are respectively connected to an outer wall of the moving plate (701) and an inner wall of the groove (8), a fixing rod (9) is connected to an outer wall of the rotating shaft (4), and the fixing rod (9) movably abuts against a bottom wall of the moving rod (7).

4. The brushless motor having ventilation and heat dissipation properties according to claim 3, wherein a bottom wall of the dust-proof plate (601) is perforated with a concave hole (6011), and an inner wall of the concave hole (6011) is provided with a slope surface to be fitted with the moving rod (7).

5. The brushless motor with ventilation and heat dissipation functions as claimed in claim 1, wherein the rear end cap (3) comprises a first housing (301), a second housing (302) and a third housing (303), the first housing (301) is in threaded connection with an outer wall of the housing (1), the second housing (302) is fixedly connected between the first housing (301) and the third housing (303), and the air inlet (3031) is arranged on an outer wall of the third housing (303).

6. The brushless motor with ventilation and heat dissipation functions as claimed in claim 5, wherein at least ten air inlets (3031) are provided, and the wind guiding directions of the ten air inlets (3031) are different.