CN217741397U - Brushless motor for automobile fan - Google Patents

Abstract

The utility model discloses an automobile fan brushless motor, including casing, stator, pivot and rotor, be provided with the stator in the casing, be provided with the pivot in the casing, be provided with the rotor in the pivot, install the end cover through the bolt on the casing, the end cover passes through the bearing and is connected with the pivot, the surface of casing is provided with radiating fin, the cover shell has been cup jointed in the outside slip of casing, the louvre has been seted up on the cover shell, the inner wall fixedly connected with bracing piece of cover shell. The casing shell is sleeved at the tail end of the casing, the ring network and the heat dissipation holes are formed in the casing shell, the lantern ring fixed through the supporting rod is arranged in the casing shell, the impeller capable of rotating is arranged in the lantern ring, then the impeller is connected with the square pin in the rotating shaft in a clamping mode, when the brushless motor is started, the rotating shaft of the brushless motor can drive the impeller to rotate through the square pin, the impeller discharges heat of the casing, the impeller is matched with the original heat dissipation fins, and the heat dissipation effect is better.

Description

Brushless motor for automobile fan

Technical Field

The utility model relates to an auto-parts field especially relates to an automotive fan brushless motor.

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, oscillation and step-out can not be generated when load suddenly changes, and the permanent magnet of the brushless DC motor with medium and small capacity is mainly made of rare earth neodymium iron boron material with high magnetic energy level at present. The existing automobile fan brushless motor only radiates heat through the radiating fins on the shell, so that the radiating effect is poor, and the automobile fan brushless motor is easy to overheat and damage after long working time. Therefore, improvements are needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a car fan brushless motor aims at solving current car fan brushless motor and only dispels the heat through the radiating fin from taking on the shell, and the radiating effect is poor, the long easy overheated damage of operating time.

According to the first aspect of this application embodiment, an automobile fan brushless motor is provided, including casing, stator, pivot and rotor, be provided with the stator in the casing, be provided with the pivot in the casing, be provided with the rotor in the pivot, install the end cover through the bolt on the casing, the end cover passes through the bearing and is connected with the pivot, the surface of casing is provided with radiating fin, the outside slip of casing has cup jointed the cover shell, the louvre has been seted up on the cover shell, the inner wall fixedly connected with bracing piece of cover shell, the fixedly connected with lantern ring on the bracing piece, lantern ring internal rotation is connected with the impeller, the joint has square round pin in the impeller, square round pin and pivot fixed connection, the outside fixedly connected with inserted bar of cover shell, fixedly connected with fixture block on the inserted bar, the outside fixedly connected with plug bush of casing, plug bush and inserted bar sliding connection, plug bush and fixture block joint, sliding connection has the cushion in the plug bush, cushion and inserted bar contact, be provided with the spring in the plug bush.

The utility model discloses an among the car fan brushless motor, fixedly connected with looped netowrk on the cover shell, the looped netowrk is stainless steel. Through the design of looped netowrk, the circulation of the interior air of cover shell of being convenient for has certain dirt effect of straining to the air that enters into in the cover shell moreover.

The utility model discloses an among the car fan brushless motor, the quantity of louvre is a plurality of, a plurality of louvre evenly distributed is on the cover shell. Through the design of louvre, the discharge of heat of being convenient for.

The utility model discloses an among the car fan brushless motor, fixedly connected with spacing ring on the impeller, be provided with the ball on the spacing ring, ball and lantern ring contact. Through the design of spacing ring, have the limiting displacement to the impeller.

The utility model discloses an among the car fan brushless motor, the inserted bar is square shaft-like, the inserted bar is the elastic metal material. Through the design of inserted bar, the fixture block of being convenient for can enter into the draw-in groove smoothly.

The utility model discloses an among the brushless motor of car fan, the one end fixedly connected with cushion of spring, the other end of spring is connected with the internal surface fixed connection of plug bush. Through the design of the spring, the counterforce can act on the inserted link through the cushion block.

The utility model discloses an among the automobile fan brushless motor, the draw-in groove has been seted up on the plug bush, draw-in groove and fixture block joint. Through the design of draw-in groove, with the fixture block cooperation, have limiting displacement to the cover shell.

The technical scheme provided by the embodiment of the application can have the following beneficial effects: the sleeve shell is sleeved at the tail end of the shell, the ring network and the heat dissipation holes are formed in the sleeve shell, the sleeve ring fixed through the supporting rod is arranged in the sleeve shell, the impeller capable of rotating is arranged in the sleeve ring, and then the impeller is clamped with the square pin on the rotating shaft, so that when the brushless motor is started, the rotating shaft can drive the impeller to rotate through the square pin, the impeller discharges heat of the shell, and the original heat dissipation fins are matched, so that the heat dissipation effect is better;

through set up the inserted bar of elastic metal material on the cover shell, set up the fixture block on the inserted bar, then set up the plug bush in the outside of casing, set up in the plug bush and carry out the cushion that elastic support through the spring, after the casing cover was established at the casing tail end, the fixture block on the inserted bar cooperates with the draw-in groove of reserving on the plug bush, can realize the high-speed joint of cover shell and casing, also makes things convenient for the dismantlement separation in later stage equally.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

fig. 3 is an enlarged view of the structure at B in fig. 1.

1, a shell; 2. a stator; 3. a rotating shaft; 4. a rotor; 5. an end cap; 6. a heat dissipating fin; 7. a housing; 8. a ring network; 9. heat dissipation holes; 10. a support bar; 11. a collar; 12. an impeller; 13. a square pin; 14. a limiting ring; 15. a ball bearing; 16. inserting a rod; 17. a clamping block; 18. inserting a sleeve; 19. a cushion block; 20. a spring; 21. a clamping groove.

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 some, not all, of the embodiments of the present invention. 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.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items and includes such combinations.

Please refer to fig. 1, the utility model discloses a car fan brushless motor, which comprises a housing 1, stator 2, pivot 3 and rotor 4, be provided with stator 2 in the casing 1, be provided with pivot 3 in the casing 1, be provided with rotor 4 in the pivot 3, install end cover 5 through the bolt on the casing 1, end cover 5 is connected with pivot 3 through the bearing, the surface of casing 1 is provided with radiating fin 6, casing 7 has been cup jointed in the outside slip of casing 1, fixedly connected with looped netowrk 8 on the casing 7, looped netowrk 8 is stainless steel, design through looped netowrk 8, be convenient for the circulation of air in the casing 7, and have certain dust filtration effect to the air that enters into in the casing 7, louvre 9 has been seted up on the casing 7, the quantity of louvre 9 is a plurality of, a plurality of louvre 9 evenly distributed is on casing 7, design through louvre 9, be convenient for thermal discharge.

Referring to fig. 1 and 2, a support rod 10 is fixedly connected to the inner wall of the casing 7, a collar 11 is fixedly connected to the support rod 10, an impeller 12 is rotatably connected to the collar 11, a limit ring 14 is fixedly connected to the impeller 12, a ball 15 is arranged on the limit ring 14, the ball 15 contacts with the collar 11, the limit ring 14 is designed to limit the impeller 12, a square pin 13 is clamped in the impeller 12, and the square pin 13 is fixedly connected to the rotating shaft 3.

Referring to fig. 1 and 3, an insertion rod 16 is fixedly connected to the outside of the housing 7, the insertion rod 16 is a square rod, the insertion rod 16 is made of elastic metal, and the insertion rod 16 is designed to facilitate the insertion block 17 to smoothly enter the clamping groove 21, the insertion rod 16 is fixedly connected with the clamping block 17, an insertion sleeve 18 is fixedly connected to the outside of the housing 1, the insertion sleeve 18 is slidably connected with the insertion rod 16, the insertion sleeve 18 is clamped with the clamping block 17, the insertion sleeve 18 is provided with the clamping groove 21, and the clamping groove 21 is clamped with the clamping block 17. Through the design of draw-in groove 21, with the cooperation of fixture block 17, have limiting displacement to cover 7, sliding connection has cushion 19 in the plug bush 18, cushion 19 and inserted bar 16 contact, is provided with spring 20 in the plug bush 18, spring 20's one end fixedly connected with cushion 19, spring 20's the other end and the internal surface fixed connection of plug bush 18, through spring 20's design, can pass through cushion 19 with reaction force and act on inserted bar 16.

When the shell 7 is used, the shell 7 is sleeved at the tail end of the shell 1, the inserted rod 16 and the fixture block 17 on the inserted rod 16 are inserted into the insert sleeve 18 outside the shell 1, the fixture block 17 deforms by the reaction force of the inner wall of the insert sleeve 18, the inserted rod 16 contacts the cushion block 19 and extrudes the cushion block 19, the cushion block 19 compresses the spring 20, the fixture block 17 is leveled with the position of the clamping groove 21 on the insert sleeve 18 along with the continuous penetration of the inserted rod 16 in the insert sleeve 18, the inserted rod 16 resets to clamp the fixture block 17 into the clamping groove 21, the spring 20 acts the reaction force on the inserted rod 16 through the cushion block 19 to tightly combine the fixture block 17 with the clamping groove 21, so that the connection between the shell 7 and the shell 1 is completed, the impeller 12 is sleeved outside the square pin 13 at the tail end of the rotating shaft 3, the fixture block 17 is pushed away from the clamping groove 21 at the later stage, and the spring 20 can push the inserted rod 16 out of the insert sleeve 18, so that the shell 7 is taken down from the shell 1, and the shell 7 is simple and convenient;

when brushless motor starts, its pivot 3 can drive impeller 12 through square round pin 13 and rotate, and impeller 12 then introduces the air in the external world in cover 7 from looped netowrk 8, takes away the heat of casing 1 to discharge from louvre 9, then original radiating fin 6 on the cooperation casing 1, the radiating effect is better.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (7)

1. The utility model provides an automobile fan brushless motor, includes casing, stator, pivot and rotor, its characterized in that, be provided with the stator in the casing, be provided with the pivot in the casing, be provided with the rotor in the pivot, install the end cover through the bolt on the casing, the end cover passes through the bearing and is connected with the pivot, the surface of casing is provided with radiating fin, the cover shell has been cup jointed in the outside slip of casing, the louvre has been seted up on the cover shell, the inner wall fixedly connected with bracing piece of cover shell, the fixedly connected with lantern ring on the bracing piece, lantern ring internal rotation is connected with the impeller, the square round pin of joint in the impeller, square round pin and pivot fixed connection, the outside fixedly connected with inserted bar of cover shell, fixedly connected with fixture block on the inserted bar, the outside fixedly connected with plug bush of casing, plug bush and inserted bar sliding connection, plug bush and fixture block joint, sliding connection has the cushion in the plug bush, the cushion contacts with the inserted bar, be provided with the spring in the plug bush.

2. The brushless motor of claim 1, wherein the housing has a ring network fixedly attached thereto, the ring network being made of stainless steel.

3. The brushless motor for automotive fans of claim 1, wherein the number of the heat dissipation holes is several, and the several heat dissipation holes are uniformly distributed on the casing.

4. The brushless motor for an automotive fan of claim 1, wherein a retainer ring is fixedly connected to the impeller, and balls are disposed on the retainer ring and contact with the collar.

5. The brushless motor for an automotive fan of claim 1, wherein the insertion rod is a square rod, and the insertion rod is made of an elastic metal material.

6. The brushless motor for an automotive fan of claim 1, wherein a cushion block is fixedly connected to one end of the spring, and the other end of the spring is fixedly connected to an inner surface of the insert sleeve.

7. The brushless motor for the automobile fan as claimed in claim 1, wherein a slot is formed on the insertion sleeve, and the slot is engaged with the latch.

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