CN214480100U

CN214480100U - External rotation type DC brushless motor

Info

Publication number: CN214480100U
Application number: CN202120329749.6U
Authority: CN
Inventors: 吴统松; 赵辉
Original assignee: Shenzhen Feiyida Motor Co ltd
Current assignee: Shenzhen Feiyida Motor Co ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-10-22
Anticipated expiration: 2031-02-04

Abstract

The utility model discloses an outer formula direct current brushless motor that rotates, detain including shell, stator, initiative external gear and rotation, the sliding tray has been seted up to shell upside surface, spacing downthehole internally mounted has the stopper, stator fixed mounting is inside the shell, initiative external gear fixed mounting is at rotor lower extreme inboard surface, the louvre has been seted up to the radiator fan below, rotate to detain and install in the shell outside. This outer formula direct current brushless motor of rotating, adopt neotype structural design, at the inside radiator fan that increases of bottom plate of shell bottom, rotation through inside rotor drives the synchronous rotation of radiator fan, the louvre of cooperation below is with the heat effluvium of inside production rapidly, avoid haring the internals, and increase the fixed plate in the top outside of shell, when fixing whole, can outwards roll-off fixed plate and utilize it to fix whole, need not plus the fixing base, make the operation simpler, convenient.

Description

External rotation type DC brushless motor

Technical Field

The utility model relates to the technical field of motors, specifically be an outer rotation type direct current brushless motor.

Background

The motor can also be called as a motor, is a device capable of converting electric energy into mechanical energy, can be used as a power device of most machines, and general motors can be divided into a brush motor and a brushless motor, wherein the brush motor needs to lead current into a rotor coil through a brush during operation, and sparks are generated during contact, so the brush motor cannot be applied to places with higher requirements.

With the continuous use of the dc brushless motor, the following problems are found during the use:

1. when the brushless direct current motor is used, certain heat can be generated by the inner coil and the permanent magnet, so that the overall temperature is increased, certain damage can be caused to the inner parts if the temperature is too high, and the service life is shortened;

2. the motor need fix it when using, generally fixes through the mode of plus fixing base, need look for suitable fixing base when the installation, and the operation is comparatively troublesome.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an outward rotation formula direct current brushless motor to propose the whole problem that generates heat, fix comparatively trouble of motor in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an external rotation type DC brushless motor comprises a shell, a stator, a driving external gear and a rotating buckle, wherein the outer surface of the upper side of the shell is provided with a sliding groove, a fixing plate is arranged in the sliding groove, a limiting hole is arranged in the fixing plate, a limiting block is arranged in the limiting hole, a bolt is arranged at the upper end of the limiting block, the stator is fixedly arranged in the shell, the outer side of the stator is provided with a rotor, the inner side surface of the rotor is fixedly provided with a permanent magnet, the outer side surface of the rotor is fixedly provided with an output ring, the driving external gear is fixedly arranged on the inner side surface of the lower end of the rotor, a bottom plate is arranged below the rotor, a driven internal gear is arranged in the bottom plate, the lower end of the driven internal gear is fixedly provided with a cooling fan, cooling holes are arranged below the cooling fan, the rotating buckle is arranged on the outer side of the shell, and a reset spring is fixedly arranged on the inner surface of the rotating buckle, and a clamping block is fixedly arranged at the top end of the inner side of the rotating buckle.

Preferably, the fixed plate and the housing form a sliding structure through the sliding groove, and the number of the fixed plates is 4 in total and symmetrically arranged about the center of the housing.

Preferably, the limiting block and the fixing plate form a clamping structure through the limiting hole, and the limiting block and the fixing plate form a lifting structure through a bolt.

Preferably, the cooling fan forms a rotating structure with the bottom plate through a driven internal gear, the driven internal gear is meshed with the driving external gear, and the position of the cooling fan corresponds to the position of the cooling hole up and down.

Preferably, the rotating buckle forms an elastic structure with the shell through a return spring, and the rotating buckle is in a strip-shaped structure in side view.

Preferably, the clamping block and the bottom plate form a clamping structure, and the bottom plate and the shell form a dismounting and mounting structure.

Compared with the prior art, the beneficial effects of the utility model are that: this outer formula direct current brushless motor of rotating, adopt neotype structural design, at the inside radiator fan that increases of bottom plate of shell bottom, rotation through inside rotor drives the synchronous rotation of radiator fan, the louvre of cooperation below is with the heat effluvium of inside production rapidly, avoid haring the internals, and increase the fixed plate in the top outside of shell, when fixing whole, can outwards roll-off fixed plate and utilize it to fix whole, need not plus the fixing base, make the operation simpler, convenient.

1. The rotor, the driving outer gear, the driven inner gear and the cooling fan are matched for use, when the motor runs, the driving outer gear fixedly installed below is utilized to drive the driven inner gear meshed with the driving outer gear to synchronously rotate through the rotation of the inner rotor, so that the cooling fan below rotates, and heat generated inside is rapidly dissipated.

2. The sliding groove, the fixed plate, spacing hole, the cooperation between stopper and the bolt is used, can drive the stopper of below through rotating the bolt and reciprocate, leaves spacing hole when rebound, loosens the block to the fixed plate for the fixed plate can be at the inside outside slip of sliding groove, after sliding again with its block once more of lapse, thereby can utilize the fixed plate of roll-off to fix whole, need not plus the fixing base, make the operation more convenient.

Drawings

Fig. 1 is a schematic view of the front cross-sectional structure of the present invention;

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

FIG. 3 is a schematic view of a side view of the rotating buckle of the present invention;

fig. 4 is a schematic view of the top view structure of the housing of the present invention.

In the figure: 1. a housing; 2. a sliding groove; 3. a fixing plate; 4. a limiting hole; 5. a limiting block; 6. a bolt; 7. a stator; 8. a rotor; 9. a permanent magnet; 10. an output ring; 11. a driving external gear; 12. a base plate; 13. a driven internal gear; 14. a heat radiation fan; 15. heat dissipation holes; 16. rotating the buckle; 17. a return spring; 18. and (7) clamping blocks.

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. 1-4, the present invention provides a technical solution: an external rotation type DC brushless motor comprises a shell 1, a sliding groove 2, a fixed plate 3, a limit hole 4, a limit block 5, a bolt 6, a stator 7, a rotor 8, a permanent magnet 9, an output ring 10, a driving external gear 11, a bottom plate 12, a driven internal gear 13, a heat radiation fan 14, a heat radiation hole 15, a rotating buckle 16, a reset spring 17 and a fixture block 18, wherein the sliding groove 2 is arranged on the outer surface of the upper side of the shell 1, the fixed plate 3 is arranged in the sliding groove 2, the limit hole 4 is arranged in the fixed plate 3, the limit block 5 is arranged in the limit hole 4, the bolt 6 is arranged at the upper end of the limit block 5, the stator 7 is fixedly arranged in the shell 1, the rotor 8 is arranged on the outer side of the stator 7, the permanent magnet 9 is fixedly arranged on the inner surface of the rotor 8, the output ring 10 is fixedly arranged on the outer surface of the rotor 8, the driving external gear 11 is fixedly arranged on the inner surface of the lower end of the rotor 8, and a bottom plate 12 is arranged below the rotor 8, a driven internal gear 13 is arranged inside the bottom plate 12, a heat dissipation fan 14 is fixedly mounted at the lower end of the driven internal gear 13, a heat dissipation hole 15 is formed below the heat dissipation fan 14, a rotating buckle 16 is mounted on the outer side of the housing 1, a return spring 17 is fixedly mounted on the surface of the inner side of the rotating buckle 16, and a fixture block 18 is fixedly mounted at the top end of the inner side of the rotating buckle 16.

The fixed plate 3 forms a sliding structure with the housing 1 through the sliding groove 2, and the fixed plate 3 is provided with 4 in total about the central symmetry of the housing 1, the structure makes it possible to slide the fixed plate 3 outwards inside the sliding groove 2 when the whole device needs to be fixed, and then the whole device is fixed by the fixed plate 3.

Stopper 5 constitutes the block structure through spacing hole 4 and fixed plate 3, and stopper 5 passes through bolt 6 and fixed plate 3 constitution elevation structure, and foretell structure makes and can drive stopper 5 of below and reciprocate through rotating bolt 6, makes it get into and leave spacing hole 4 to the realization is to the block of fixed plate 3 and loosen.

The cooling fan 14 forms a rotating structure through the driven inner gear 13 and the bottom plate 12, the driven inner gear 13 is meshed with the driving outer gear 11, the position of the cooling fan 14 corresponds to the position of the cooling hole 15 up and down, the structure enables the rotor 8 inside to rotate when the device integrally operates, and the driving outer gear 11 fixedly installed at the lower end is utilized to drive the driven inner gear 13 to rotate, so that the cooling fan 14 rotates, and the purpose of rapid cooling is achieved.

The rotating buckle 16 and the shell 1 form an elastic structure through the return spring 17, and the rotating buckle 16 is in a strip-shaped structure from side view, and the structure enables the rotating buckle 16 to be clamped with the shell 1 by pulling the rotating buckle outwards and rotating the rotating buckle 90 degrees, and the rotating buckle can be restored to the original position under the action of the return spring 17 when the clamping is released.

The clamping structure is formed by the clamping block 18 and the bottom plate 12, the bottom plate 12 and the shell 1 form a dismounting and mounting structure, the structure enables the rotating buckle 16 to drive the inner clamping block 18 to move out of the outer side of the bottom plate 12 when moving outwards, so that clamping of the bottom plate 12 is loosened, the bottom plate 12 can be easily taken down, and internal parts are conveniently overhauled.

The working principle is as follows: when using this device, according to the structure shown in fig. 1 and fig. 4, need wholly fix the device, at first, rotate bolt 6, bolt 6 rotates stopper 5 that drives the below and upwards moves out the spacing hole 4 outside of seting up on fixed plate 3, later outwards stimulate fixed plate 3, make fixed plate 3 slide in 2 insides of sliding tray that the shell 1 top was seted up, the part that exposes when fixed plate 3 can stop the pulling when wholly fixing the device, later the reverse rotation bolt 6, make it drive stopper 5 and move down and get into spacing hole 4 again, realize the fixed to fixed plate 3, then utilize fixed plate 3 with the device monolithic stationary in the position that needs the installation.

According to the structure shown in fig. 1, fig. 2 and fig. 3, the whole device is electrified after installation, the rotor 8 rotates after the coil outside the inner stator 7 is electrified, the power is output by the output ring 10 fixedly installed on the outer side surface of the rotor 8 to drive the external machine to rotate, the rotor 8 rotates and simultaneously drives the driven inner gear 13 installed inside the bottom plate 12 to synchronously rotate by the driving outer gear 11 fixedly installed on the inner side of the lower end, so that the cooling fan 14 below rotates, the heat generated during the operation of the device is quickly dissipated outside the device through the cooling holes 15 formed in the bottom plate 12, the damage to parts caused by overhigh internal temperature is avoided, when the device fails in the use process, the rotating buckle 16 at the lower end of the side surface of the shell 1 is firstly pulled outwards, the rotating buckle 16 rotates 90 degrees after moving to the outer side of the shell 1, utilize to form the block between its rectangular shape structure and the shell 1, drive inside fixture block 18 synchronous movement to the outside of bottom plate 12 when rotating knot 16 and outwards moving, can take off bottom plate 12 from the inside of shell 1 this moment, overhaul inside part, put bottom plate 12 into shell 1 inside again after overhauing, later will rotate knot 16 and rotate 90 degrees once more, rotate knot 16 and inwards move under the effect of reset spring 17 this moment for fixture block 18 fixes bottom plate 12 again, this is this external rotation type direct current brushless motor's theory of operation.

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 an outer formula of turning direct current brushless motor, includes shell (1), stator (7), initiative external gear (11) and rotates knot (16), its characterized in that: the outer surface of the upper side of the shell (1) is provided with a sliding groove (2), a fixing plate (3) is arranged inside the sliding groove (2), a limiting hole (4) is formed inside the fixing plate (3), a limiting block (5) is arranged inside the limiting hole (4), a bolt (6) is arranged at the upper end of the limiting block (5), the stator (7) is fixedly arranged inside the shell (1), the outer side of the stator (7) is provided with a rotor (8), the inner side surface of the rotor (8) is fixedly provided with a permanent magnet (9), the outer side surface of the rotor (8) is fixedly provided with an output ring (10), the driving outer gear (11) is fixedly arranged on the inner side surface of the lower end of the rotor (8), a bottom plate (12) is arranged below the rotor (8), a driven inner gear (13) is arranged inside the bottom plate (12), and a cooling fan (14) is fixedly arranged at the lower end of the driven inner gear (13), radiating hole (15) have been seted up to radiator fan (14) below, rotate to detain (16) and install in shell (1) outside, and rotate and detain (16) inboard fixed surface and install reset spring (17) to rotate and detain (16) inboard top fixed mounting have fixture block (18).

2. The externally rotating brushless dc motor of claim 1, wherein: the fixed plate (3) and the shell (1) form a sliding structure through the sliding groove (2), and the fixed plate (3) is provided with 4 pieces of sliding structure in a central symmetry mode relative to the shell (1).

3. The externally rotating brushless dc motor of claim 1, wherein: stopper (5) constitute the block structure through spacing hole (4) and fixed plate (3), and stopper (5) constitute elevation structure through bolt (6) and fixed plate (3).

4. The externally rotating brushless dc motor of claim 1, wherein: the heat radiation fan (14) and the bottom plate (12) form a rotating structure through the driven inner gear (13), the driven inner gear (13) is meshed with the driving outer gear (11) and connected with the driving outer gear, and the position of the heat radiation fan (14) corresponds to the position of the heat radiation hole (15) up and down.

5. The externally rotating brushless dc motor of claim 1, wherein: the rotating buckle (16) and the shell (1) form an elastic structure through a return spring (17), and the rotating buckle (16) is in a strip-shaped structure in side view.

6. The externally rotating brushless dc motor of claim 1, wherein: the clamping block (18) and the bottom plate (12) form a clamping structure, and the bottom plate (12) and the shell (1) form a dismounting and mounting structure.