CN210958042U

CN210958042U - Heat radiation structure of built-in chip of brushless motor

Info

Publication number: CN210958042U
Application number: CN201922374609.6U
Authority: CN
Inventors: 杨倩
Original assignee: Jiangxi Meide Electromechanical Accessories Co ltd
Current assignee: Jiangxi Meide Electromechanical Accessories Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-07-07
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a brushless motor's built-in chip's heat radiation structure, comprises a box bod, the side fixedly connected with fixed ring of box body, trapezoidal hole has been seted up on fixed ring's surface, the upper surface of box body has been seted up the dogeye, the inner wall threaded connection of dogeye has sealed lid, the funnel hole has been seted up on the surface of sealed lid, the inner wall fixedly connected with hemisphere filter screen in funnel hole, the inner wall rotation of box body is connected with the flabellum. This brushless motor's built-in chip's heat radiation structure, through setting up the box body, fixed ring and trapezoidal hole, be convenient for make heat abstractor and chip fix in brushless motor's inside, through setting up sealed lid, hemisphere filter screen and flabellum, the brushless motor of being convenient for produces when rotating inside the box body is entered into through hemisphere filter screen and funnel hole to blow the flabellum, make it dispel the heat the cooling to the inside chip of box body, thereby reach and be convenient for dispel the heat to this brushless motor's built-in chip.

Description

Heat radiation structure of built-in chip of brushless motor

Technical Field

The utility model relates to a brushless motor technical field specifically is a brushless motor's built-in chip's heat radiation structure.

Background

The brushless DC motor is a typical electromechanical integration product, 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 the permanent magnet of the brushless DC motor with medium and small capacity cannot generate oscillation and step-out when the load suddenly changes.

In the use of brushless motor, need carry out timely effectual heat dissipation to its inside chip and handle to guarantee brushless motor's normal operating condition, nevertheless there are some weak points in the use in current brushless motor's built-in chip's heat radiation structure, need a large amount of devices to its heat dissipation on radiating comprehensiveness, it is narrow and small to lead to the inside space of chip, and then has influenced built-in chip's normal work.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a brushless motor's built-in chip's heat radiation structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a heat dissipation structure of a built-in chip of a brushless motor comprises a box body, wherein a fixed ring is fixedly connected to the side surface of the box body, a trapezoidal hole is formed in the surface of the fixed ring, an inverted convex hole is formed in the upper surface of the box body, a sealing cover is in threaded connection with the inner wall of the inverted convex hole, a funnel hole is formed in the surface of the sealing cover, a hemispherical filter screen is fixedly connected to the inner wall of the funnel hole, a fan blade is rotatably connected to the inner wall of the box body, a circuit board is fixedly connected to the inner bottom wall of the box body, a through hole is formed in the back surface of the box body, a chip is fixedly connected to the surface of the circuit board, a clamping plate is lapped on the side surface of the chip, a convex rod is fixedly connected to the side surface of the clamping plate, a spring is fixedly connected to, and the upper surface of the reverse 7-shaped plate is lapped with a radiating fin.

Preferably, the number of the reverse 7-shaped plates is two, the reverse 7-shaped plates are fixedly connected to two sides of the inner wall of the box body respectively, the bottoms of the radiating fins are welded to the upper surfaces of the reverse 7-shaped plates, and the lower surfaces of the radiating fins are connected with the chips through heat-conducting silicone grease.

Preferably, an air inlet and an air outlet are formed in the side wall of the side surface of the box body above the fixed circular ring, and the inner wall of the air inlet and the inner wall of the air outlet are fixedly connected with a dust-proof filter screen.

Preferably, the quantity of dead lever, nose bar and cardboard is two, and all sets up in the both sides of chip, the cardboard passes through the flexible joint of one end of nose bar and spring and dead lever, and the groove with spring and nose bar looks adaptation is seted up to the one end of dead lever.

Preferably, the surface of the sealing cover is provided with a plurality of funnel holes, and the surface of each funnel hole is fixed with a hemispherical filter screen in an inverted manner.

Preferably, the fan blades are positioned between the radiating fins and the sealing cover, the number of the fan blades is twelve, and the fan blades are arranged on the inner front wall and the inner rear wall of the box body at equal intervals.

Advantageous effects

The utility model provides a brushless motor's built-in chip's heat radiation structure possesses following beneficial effect:

1. this brushless motor's built-in chip's heat radiation structure, through setting up the box body, fixed ring and trapezoidal hole, be convenient for make heat abstractor and chip fix in brushless motor's inside, through setting up sealed lid, hemisphere filter screen and flabellum, the brushless motor of being convenient for produces when rotating inside the box body is entered into through hemisphere filter screen and funnel hole to blow the flabellum, make it dispel the heat the cooling to the inside chip of box body, thereby reach and be convenient for dispel the heat to this brushless motor's built-in chip.

2. This brushless motor's built-in chip's heat radiation structure, through setting up anti-7 style of calligraphy template, fin, dead lever, spring, projecting bar, cardboard and chip, be convenient for make the cardboard pass through projecting bar and spring and chip contact and clip fixed chip to the heat that makes the chip give off carries out the heat dissipation processing through heat conduction silicone grease conduction to fin in, thereby makes this brushless motor's built-in chip have radiating function.

Drawings

FIG. 1 is a schematic front sectional view of the structure of the present invention;

fig. 2 is a schematic top view of the structure of the present invention.

In the figure: the novel fan comprises a box body 1, a fixed ring 2, a trapezoidal hole 3, a reverse convex hole 4, a sealing cover 5, a funnel hole 6, a hemispherical filter screen 7, fan blades 8, a circuit board 9, a through hole 10, a chip 11, a clamping plate 12, a convex rod 13, a spring 14, a fixed rod 15, a reverse 7-shaped plate 16 and a radiating fin 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a heat dissipation structure of a built-in chip of a brushless motor comprises a box body 1, a fixed ring 2 is fixedly connected with the side surface of the box body 1, an air inlet and an air outlet are arranged on the side wall above the fixed ring 2 on the side surface of the box body 1, and the inner walls of the air inlet and the air outlet are fixedly connected with a dust-proof filter screen, the surface of the fixed ring 2 is provided with a trapezoidal hole 3, the upper surface of the box body 1 is provided with a reverse convex hole 4, the inner wall of the reverse convex hole 4 is connected with a sealing cover 5 in a threaded manner, the surface of the sealing cover 5 is provided with a funnel hole 6, the inner wall of the funnel hole 6 is fixedly connected with a hemispherical filter screen 7, and the fan blade 8 is positioned between the radiating fin 17 and the sealing cover 5, twelve fan blades 8 are respectively arranged on the inner front wall and the inner rear wall of the box body 1 at equal intervals, the surface of the sealing cover 5 is provided with a plurality of funnel holes 6, a hemispherical filter screen 7 is fixed on the surface of the funnel hole 6 in an inverted manner, and the inner wall of the box body 1 is rotatably connected with fan blades 8.

The inner bottom wall of the box body 1 is fixedly connected with a circuit board 9, the back surface of the box body 1 is provided with a through hole 10, the surface of the circuit board 9 is fixedly connected with a chip 11, the side surface of the chip 11 is lapped with a clamping plate 12, the side surface of the clamping plate 12 is fixedly connected with a convex rod 13, the side surface of the convex rod 13 is fixedly connected with a spring 14, the side surface of the spring 14 is fixedly connected with a fixed rod 15, the number of the fixed rods 15, the convex rod 13 and the clamping plate 12 is two, and are all arranged at two sides of the chip 11, the clamping plate 12 is telescopically clamped with one end of the fixed rod 15 through the convex rod 13 and the spring 14, one end of the fixed rod 15 is provided with a groove matched with the spring 14 and the convex rod 13, one end of the fixed rod 15 is fixedly connected with a reverse 7-shaped plate 16, the upper surface of the reverse 7-shaped plate 16 is lapped with a radiating fin 17, the number of, the lower surface of the heat sink 17 is connected to the chip 11 through a heat conductive silicone grease.

The working principle is as follows: when using brushless motor's built-in chip's heat radiation structure, brushless motor starts, make its brushless motor rotate the wind that produces and enter into inside box body 1 through hemisphere filter screen 7 and funnel hole 6, and blow flabellum 8, make flabellum 8 dispel the heat to the inside chip 11 of box body 1 and cool down, chip 11 drives cardboard 12 through nose bar 13 and spring 14 and cliies and fixed chip 11, chip 11 is after working a period, the heat that it gived off conducts to fin 17 in through heat conduction silicone grease, carry out the thermal treatment, be convenient for dispel the heat to brushless motor's built-in chip 11 through two heat dissipations, thereby make this brushless motor's built-in chip reach the effect of thermal treatment.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a brushless motor's built-in chip's heat radiation structure, includes box body (1), its characterized in that: the novel multifunctional portable electronic cigarette case is characterized in that a fixed ring (2) is fixedly connected to the side face of the case body (1), a trapezoidal hole (3) is formed in the surface of the fixed ring (2), a reverse convex hole (4) is formed in the upper surface of the case body (1), a sealing cover (5) is in threaded connection with the inner wall of the reverse convex hole (4), a funnel hole (6) is formed in the surface of the sealing cover (5), a hemispherical filter screen (7) is fixedly connected to the inner wall of the funnel hole (6), fan blades (8) are rotatably connected to the inner wall of the case body (1), a circuit board (9) is fixedly connected to the inner bottom wall of the case body (1), a through hole (10) is formed in the back face of the case body (1), a chip (11) is fixedly connected to the surface of the circuit board (9), a clamping board (12) is lapped on the side face, the side fixedly connected with spring (14) of nose bar (13), the side fixedly connected with dead lever (15) of spring (14), the anti-7 style of calligraphy board (16) of one end fixedly connected with of dead lever (15), the upper surface overlap joint of anti-7 style of calligraphy board (16) has fin (17).

2. The heat dissipation structure of a built-in chip of a brushless motor according to claim 1, wherein: the quantity of anti-7 style of calligraphy board (16) is two, fixed connection respectively in the inner wall both sides of box body (1), and the bottom welding of fin (17) is at the upper surface of anti-7 style of calligraphy board (16), the lower surface of fin (17) is connected with chip (11) through heat conduction silicone grease.

3. The heat dissipation structure of a built-in chip of a brushless motor according to claim 1, wherein: an air inlet and an air outlet are formed in the side wall of the side surface of the box body (1) and above the circular ring (2), and a dust-proof filter screen is fixedly connected to the inner wall of the air inlet and the inner wall of the air outlet.

4. The heat dissipation structure of a built-in chip of a brushless motor according to claim 1, wherein: the quantity of dead lever (15), nose bar (13) and cardboard (12) is two, and all sets up the both sides in chip (11), cardboard (12) are through the flexible joint of one end of nose bar (13) and spring (14) and dead lever (15), and the groove with spring (14) and nose bar (13) looks adaptation is seted up to the one end of dead lever (15).

5. The heat dissipation structure of a built-in chip of a brushless motor according to claim 1, wherein: the surface of the sealing cover (5) is provided with a plurality of funnel holes (6), and the surface of each funnel hole (6) is fixed with a hemispherical filter screen (7) in a reverse buckling manner.

6. The heat dissipation structure of a built-in chip of a brushless motor according to claim 1, wherein: the fan blades (8) are positioned between the radiating fins (17) and the sealing cover (5), the number of the fan blades (8) is twelve, and the fan blades are arranged on the inner front wall and the inner rear wall of the box body (1) at equal intervals.