CN218162027U

CN218162027U - Integrated hub motor for electric bicycle

Info

Publication number: CN218162027U
Application number: CN202221913045.4U
Authority: CN
Inventors: 王晓红; 傅松平; 陆桂明; 王小英; 王智锋
Original assignee: Suzhou Xiongfeng Motor Co ltd
Current assignee: Suzhou Xiongfeng Motor Co ltd
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2022-12-27
Anticipated expiration: 2032-07-20

Abstract

The utility model discloses an integrated type in-wheel motor for electric bicycle, including motor housing, motor housing's last rotation is worn to be equipped with the motor shaft, the surface of motor shaft and the internally mounted who is located motor housing have the rotor, motor housing's internally mounted has the stator, motor housing's fixed surface cover is equipped with annular mounting panel, the left end face bolted connection of annular mounting panel has the heat exchanger that looses, and after in-wheel motor circular telegram, in-wheel motor's motor shaft can rotate, will drive two sets of bull sticks through first chain and the cooperation of second chain and rotate with the fan blade of blowing when the motor shaft rotates, starts the refrigeration piece this moment, and the piece will refrigerate to the refrigeration net, and then the cold wind that produces will get into through the epaxial air-out passageway of motor, and last cold wind will be discharged through a plurality of exhaust vents, and the heat inside motor housing is taken away to the cold wind of flowing in the air-out passageway, and then can make the high-efficient heat dissipation of in-wheel motor, effectively improve in-wheel motor's life.

Description

Integrated hub motor for electric bicycle

Technical Field

The utility model relates to an in-wheel motor technical field specifically is an integrated type in-wheel motor for electric bicycle.

Background

Automobiles, motorcycles, and fuel-type power-assisted vehicles are one of the main sources of urban air pollution and noise pollution, and the energy sources thereof are mainly limited to petroleum. In contrast, electric vehicles do not have these disadvantages and thus will certainly find wider and wider application. China is a bicycle great country, and with the improvement of the living standard of people and the limitation of the purchasing ability of residents, urban road facilities and other factors, the electric bicycle is a green transportation tool which is more competitive and popular than electric automobiles.

One of the electric bicycle's key technology motor, according to the design structure and the performance characteristics of motor, electric bicycle wheel hub motor mainly falls into two main categories: the first is a permanent magnet brush direct current motor; the other is a permanent magnet brushless direct current motor. The brush direct current motor is driven to perform mechanical commutation by the electric brush and the commutator, and the internal structure of the brush direct current motor consists of a stator magnetic pole, a rotor, the electric brush and the like, so that the brush direct current motor has the characteristics of simple structure, low manufacturing cost and the like; the brushless direct current motor is driven by a semiconductor switching device (such as a Hall element) to realize electronic commutation, consists of a permanent magnet rotor, a multi-pole winding stator, a position sensor and the like, and has the advantages of high reliability, low energy consumption, no commutation spark, low mechanical noise and the like.

When the existing integrated hub motor is used for a long time, the temperature radiating effect in the motor is poor, and the output and the efficiency of the motor are easily influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric bicycle is with integrated type in-wheel motor 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:

the utility model provides an integrated type in-wheel motor for electric bicycle, includes motor housing, motor housing's last rotation is worn to be equipped with the motor shaft, the surface of motor shaft is located motor housing's internally mounted and is had the rotor, motor housing's internally mounted has the stator, motor housing's fixed surface cover is equipped with annular mounting panel, the left end face bolted connection of annular mounting panel has the heat exchanger that looses, a plurality of fresh air inlets have been seted up to the left end face of heat exchanger that looses, the equal rotation in the interior right side wall of heat exchanger is installed the bull stick from top to bottom, the right-hand member fixedly connected with fan leaf of bull stick, the fixed surface cover of motor shaft is equipped with drive sprocket, the inside top of heat exchanger that looses is rotated and is installed the transfer line, the fixed cover in surface right side of transfer line is equipped with driven sprocket, is connected with first chain between driven sprocket and the drive sprocket, and the fixed surface of bull stick is equipped with first sprocket, the fixed surface left side of transfer line is equipped with the second sprocket, is connected with the second chain between second sprocket and the first sprocket, the air-out passageway has been seted up on the motor shaft, a plurality of air outlet openings that communicate with the air-out passageway have been seted up to the surface of motor shaft, the inside of heat exchanger and lie in the right side fixed mounting of fan leaf has the refrigeration net.

Preferably, a plurality of ventilation holes are formed in the outer surface of the heat dissipation cover.

Preferably, a plurality of transverse radiating fins are fixedly mounted on the outer surface of the motor shell, and a radiating channel is formed between every two adjacent radiating fins.

Preferably, a plurality of heat conduction columns are fixedly arranged on the left end face of the motor shell in a penetrating mode.

Preferably, the outside cover of heat dissipation cover is equipped with dustproof mesh enclosure.

Preferably, the outer surface of the motor shaft is fixedly wrapped with a dustproof mesh ring at the air outlet.

Compared with the prior art, the beneficial effects of the utility model are that: the integrated hub motor is convenient to use and simple in structure, when the hub motor is electrified, a motor shaft of the hub motor can rotate, the motor shaft can drive the two groups of rotating rods and the blowing fan blades to rotate through the matching of the first chain and the second chain when rotating, the refrigerating pieces are started at the moment, the refrigerating pieces can refrigerate the refrigerating net, cold air is generated when the air blown by the blowing fan blades contacts the refrigerating net, the cold air enters through an air outlet channel on the motor shaft and is finally discharged through a plurality of air outlet holes, and the heat in the motor shell is taken away by the cold air flowing in the air outlet channel, so that the hub motor can efficiently dissipate heat, and the service life of the hub motor is effectively prolonged; the arranged air vent can discharge part of cold air generated by the air blowing fan blade through the air vent, and the cold air can drive heat outside the motor shell in the process; the dust screen cover and the dust screen ring can prevent external dust and other impurities from entering the heat dissipation cover.

Drawings

FIG. 1 is a schematic front sectional view of a main structure of an integrated hub motor for an electric bicycle;

fig. 2 is a front view of a main structure of an integrated hub motor for an electric bicycle.

In the figure: 1-annular mounting plate, 2-vent hole, 3-radiating fin, 4-motor shell, 5-dustproof mesh cover, 6-radiating cover, 7-transmission rod, 8-second chain, 9-first chain, 10-air inlet hole, 11-refrigeration piece, 12-refrigeration mesh, 13-heat conduction column, 14-stator, 15-dustproof mesh ring, 16-air outlet channel, 17-motor shaft, 18-air outlet hole, 19-rotor and 20-air blowing fan blade.

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.

Example 1: referring to fig. 1-2, an integrated hub motor for an electric bicycle comprises a motor housing 4, a motor shaft 17 penetrates through the upper rotation of the motor housing 4, a rotor 19 is mounted on the outer surface of the motor shaft 17 and located inside the motor housing 4, a stator 14 is mounted inside the motor housing 4, an annular mounting plate 1 is fixedly sleeved on the outer surface of the motor housing 4, a heat dissipation cover 6 is bolted to the left end surface of the annular mounting plate 1, a plurality of air inlet holes 10 are formed in the left end surface of the heat dissipation cover 6, a rotating rod is rotatably mounted above and below the inner right side wall of the heat dissipation cover 6, a blowing fan blade 20 is fixedly connected to the right end of the rotating rod, a driving sprocket is fixedly sleeved on the outer surface of the motor shaft 17, a transmission rod 7 is rotatably mounted above the inner portion of the heat dissipation cover 6, a driven sprocket is fixedly sleeved on the right side of the outer surface of the transmission rod 7, a first chain 9 is connected between the driven sprocket and the driving sprocket, a first sprocket is fixedly sleeved on the outer surface of the rotating rod, a second sprocket is fixedly sleeved on the left side of the transmission rod 7, a second sprocket is connected with a second sprocket and a second sprocket 8, an air outlet channel 16 is formed on the motor shaft 17, a plurality of cooling fan blades are mounted on the outer surface of the cooling fan blade 12, and located on the cooling fan blade 12.

After in-wheel motor circular telegram, in-wheel motor's motor shaft 17 can rotate, motor shaft 17 will drive two sets of bull sticks and the rotation of fan leaf 20 of blowing through first chain 9 and the cooperation of second chain 8 when rotating, start refrigeration piece 11 this moment, refrigeration piece 11 will refrigerate refrigeration net 12, will produce cold wind when the wind that blows out fan leaf 20 touches refrigeration net 12, cold wind will get into through air-out passageway 16 on the motor shaft 17, cold wind will discharge through a plurality of exhaust vents 18 at last, the flow will take away the inside heat of motor housing 4 at the inside cold wind of air-out passageway 16, and then can make in-wheel motor high-efficient heat dissipation, effectively improve in-wheel motor's life.

Wherein, a plurality of ventilation holes 2 are arranged on the outer surface of the heat dissipation cover 6.

The ventilation hole 2 is arranged to discharge part of the cold air generated by the blowing fan blade 20 through the ventilation hole 2, and the cold air drives the heat outside the motor housing 4 in the process.

The outer surface of the motor shell 4 is fixedly provided with a plurality of transverse radiating fins 3, and a radiating channel is formed between every two adjacent radiating fins 3.

The heat dissipation effect of the hub motor can be improved through the plurality of heat dissipation fins 3.

Wherein, a plurality of heat conduction columns 13 are fixedly arranged on the left end surface of the motor shell 4 in a penetrating way.

The heat-conducting columns 13 can improve the heat dissipation effect of the hub motor again.

Example 2: referring to fig. 1-2, an integrated hub motor for an electric bicycle is different from embodiment 1 in that a dust-proof mesh enclosure 5 is sleeved outside a heat dissipation cover 6.

And a dust screen ring 15 is fixedly wrapped on the outer surface of the motor shaft 17 and positioned at the air outlet 18.

The dust screen cover 5 and the dust screen ring 15 can prevent external dust and other impurities from entering the heat dissipation cover 6.

In the present invention, the terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only the terms determined for convenience of describing the structural relationship of each component or element of the present invention, and are not specific to any component or element of the present invention, and are not to be construed as limiting the present invention.

Claims

1. The utility model provides an integrated type in-wheel motor for electric bicycle, includes motor housing (4), its characterized in that: a motor shaft (17) penetrates through the upper rotation of the motor shell (4), a rotor (19) is arranged on the outer surface of the motor shaft (17) and positioned inside the motor shell (4), a stator (14) is arranged inside the motor shell (4), an annular mounting plate (1) is sleeved on the outer surface of the motor shell (4) in a fixed mode, a heat dissipation cover (6) is connected to the left end face of the annular mounting plate (1) through a bolt, a plurality of air inlet holes (10) are formed in the left end face of the heat dissipation cover (6), a rotating rod is installed on the upper portion and the lower portion of the inner right side wall of the heat dissipation cover (6) in a rotating mode, a blowing fan blade (20) is fixedly connected to the right end of the rotating rod, a driving chain wheel is sleeved on the outer surface of the motor shaft (17), a transmission rod (7) is installed on the upper portion of the inner portion of the heat dissipation cover (6) in a rotating mode, a driven chain wheel is installed on the right side of the outer surface of the transmission rod (7), a first chain (9) is connected between the driven chain wheel and the driving chain wheel, a first chain wheel is fixedly sleeved on the outer surface of the rotating rod, a second chain wheel is fixedly installed on the left side of the transmission rod (7), a plurality of an air outlet channel (16) is formed on the outer surface of the motor shaft (17), and an air channel (16) is formed on the motor shaft (17), the cooling device is characterized in that a refrigerating net (12) is fixedly arranged inside the heat dissipation cover (6) and on the right side of the blowing fan blades (20), and a plurality of refrigerating sheets (11) are arranged on the refrigerating net (12).

2. The integrated hub motor for an electric bicycle according to claim 1, wherein: the outer surface of the heat dissipation cover (6) is provided with a plurality of ventilation holes (2).

3. The integrated hub motor for an electric bicycle according to claim 2, wherein: the motor is characterized in that a plurality of transverse radiating fins (3) are fixedly mounted on the outer surface of the motor shell (4), and radiating channels are formed between the adjacent radiating fins (3).

4. The integrated hub motor for electric bicycle according to claim 3, wherein: and a plurality of heat conducting columns (13) are fixedly arranged on the left end surface of the motor shell (4) in a penetrating manner.

5. The integrated hub motor for electric bicycle according to claim 4, wherein: the outside cover of heat dissipation cover (6) is equipped with dust screen panel (5).

6. The integrated hub motor for electric bicycle according to claim 5, wherein: and the outer surface of the motor shaft (17) is fixedly wrapped with a dustproof net ring (15) at the air outlet (18).