CN218161945U

CN218161945U - Heat radiation structure of inner rotor wheel hub motor

Info

Publication number: CN218161945U
Application number: CN202221868188.8U
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 inner rotor in-wheel motor's heat radiation structure, including the center pin, rotate through the bearing on the center pin and install the shell, the center pin intermediate position still is fixed with stator support, stator coil is installed in the stator support outside, the shell inner wall is fixed with the rotor, still install forced air cooling mechanism in the center pin, still install liquid cooling mechanism on the center pin, still install protection machanism in the forced air cooling mechanism, the utility model discloses simple structure can effectively improve in-wheel motor's radiating effect, can bring the facility for in-wheel motor technical field.

Description

Heat radiation structure of inner rotor wheel hub motor

Technical Field

The utility model relates to a wheel hub motor technical field specifically is an inner rotor wheel hub motor's heat radiation structure.

Background

The hub motor is characterized in that a power device, a transmission device and a braking device are integrated into the hub, so that the mechanical part of the electric vehicle is greatly simplified. The hub motor is widely applied to the field of electric vehicles and electric scooters.

At present, the heat dissipation of the hub motor is basically realized by the end covers of the sides, and usually, the heat dissipation grooves or heat dissipation convex strips are uniformly distributed on the end covers of the sides, so that the heat dissipation area is increased, and the heat dissipation effect of the hub is improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an inner rotor in-wheel motor's heat radiation structure to solve the problem that proposes in 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 inner rotor in-wheel motor's heat radiation structure, includes the center pin, rotate through the bearing on the center pin and install the shell, the center pin intermediate position still is fixed with stator support, stator coil is installed in the stator support outside, the shell inner wall is fixed with the rotor, still install air-cooled mechanism in the center pin, still install liquid cooling mechanism on the center pin, still install protection machanism in the air-cooled mechanism.

Preferably, the air cooling mechanism comprises ventilation ducts arranged at two ends of the central shaft, the inner side ends of the ventilation ducts are communicated with the inside of the shell through communication holes, and air guide columns are further mounted at the inner side ends of the ventilation ducts on the left side.

Preferably, the wind guide column is in a circular truncated cone shape.

Preferably, the protection mechanism comprises a protection groove which is formed in the position, corresponding to the ventilation pipeline, of the two ends of the central shaft, a waterproof breathable film is installed in the protection groove, and a protection pressing seat is further arranged in the protection groove in a rotating mode.

Preferably, the protective pressing seat is circular.

Preferably, the liquid cooling mechanism includes the liquid cooling case of installation on the center pin, the drain pipe is installed to liquid ability case lower extreme, the drain pipe runs through in the center pin and stretches into the stator support, the feed liquor pipe is still installed on liquid cooling case right side, the feed liquor pipe runs through the center pin and stretches into in the drain pipe, the feed liquor pipe end also extends to in the stator support, install the feed liquor pump on the feed liquor pipe, install the recovery pump on the drain pipe.

Compared with the prior art, the beneficial effects of the utility model are that: the liquid cooling mechanism is arranged through the air cooling mechanism, so that the heat dissipation effect of the device can be improved. The utility model discloses simple structure can effectively improve in-wheel motor's radiating effect, can bring the facility for in-wheel motor technical field.

Drawings

Fig. 1 is a schematic front structural view of a heat dissipation structure of an inner rotor hub motor;

fig. 2 is a schematic front sectional structural view of a heat dissipation structure of an inner rotor hub motor.

In the figure: 1-central shaft, 11-shell, 12-stator bracket, 13-stator coil, 14-rotor, 2-protection mechanism, 21-waterproof breathable film, 22-protection groove, 23-protection pressure seat, 3-air cooling mechanism, 31-ventilation pipe, 32-ventilation column, 33-communication hole, 4-liquid cooling mechanism, 41-liquid cooling box, 42-liquid inlet pipe, 43-liquid outlet pipe, 44-recovery pump and 45-liquid inlet pump.

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, a heat dissipation structure of an inner rotor hub motor includes a central shaft 1, a housing 11 is rotatably installed on the central shaft 1 through a bearing, a stator support 12 is further fixed at a middle position of the central shaft 1, a stator coil 13 is installed on an outer side of the stator support 12, a rotor 14 is fixed on an inner wall of the housing 11, an air cooling mechanism 3 is further installed in the central shaft 1, a liquid cooling mechanism 4 is further installed on the central shaft 1, and a protection mechanism 2 is further installed in the air cooling mechanism 3.

The air cooling mechanism 3 comprises a ventilating duct 31 arranged at two ends of the central shaft 1, the inner side end of the ventilating duct 31 is communicated with the inside of the shell 11 through a communicating hole 33, and an air guide column 32 is further mounted at the inner side end of the ventilating duct 31 on the left side.

Through setting up air cooling mechanism 3, be convenient for discharge the heat in the shell 11, during the use, inside air pipe 31 entering shell 11 through one end, later through the ventilation pipe 31 of intercommunicating pore 33 entering opposite side, can realize the air flow in the shell 11 to improve wheel hub motor's radiating effect.

The wind guide post 32 is in a circular truncated cone shape. The provision of the truncated cone-shaped wind guide post 32 facilitates guiding of the wind into the communication hole and into the housing 11.

The protection mechanism 2 comprises a protection groove 22 which is formed in the position, corresponding to the ventilation pipeline 31, of the two ends of the central shaft 1, a waterproof breathable film 21 is installed in the protection groove 22, and a protection pressing seat 23 is further arranged in the protection groove 22 in a rotating mode.

Through setting up waterproof ventilated membrane 21, under the condition that does not influence the air and pass through, can prevent effectively that external water from entering inside shell 11, influence in-wheel motor's work.

The protective pressure seat 23 is annular.

Liquid cooling mechanism 4 includes the liquid cooling case 41 of installation on the center pin 1, drain pipe 43 is installed to 41 lower extremes of liquid cooling case, drain pipe 43 runs through in the center pin 1 and stretches into stator support 12, feed liquor pipe 42 is still installed on 41 right sides of liquid cooling case, feed liquor pipe 42 runs through in the center pin 1 and stretches into drain pipe 43, feed liquor pipe 42 is terminal also to extend to stator support 12 in, install feed liquor pump 45 on the feed liquor pipe 42, install recovery pump 44 on the drain pipe 43.

Through setting up liquid cooling mechanism 4, can further improve in-wheel motor's radiating effect, during the use, take out the coolant liquid in the liquid cooling case 41 through feed liquor pump 45, right feed liquor pipe 42 discharges into and is located the drain pipe 43 in stator support 12, opens the recycle pump 44 afterwards, takes out the coolant liquid of the interior liquid absorption heat of drain pipe, cools off in the liquid cooling case 41 side by side.

In the present invention, the terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only the terms determined for the 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 inner rotor in-wheel motor's heat radiation structure, includes center pin (1), its characterized in that: install shell (11) through the bearing rotation on center pin (1), center pin (1) intermediate position still is fixed with stator support (12), stator coil (13) are installed in stator support (12) outside, shell (11) inner wall is fixed with rotor (14), still install air-cooled mechanism (3) in center pin (1), still install liquid cooling mechanism (4) on center pin (1), still install protection machanism (2) in air-cooled mechanism (3).

2. The heat dissipation structure of an inner rotor hub motor as claimed in claim 1, wherein: air cooling mechanism (3) include air pipe (31) that center pin (1) both ends were seted up, the medial extremity of air pipe (31) passes through intercommunicating pore (33) and shell (11) inside intercommunication, the left side air pipe (31) the medial extremity still install air guide post (32).

3. The heat dissipation structure of an inner rotor hub motor as claimed in claim 2, wherein: the air guide column (32) is in a circular truncated cone shape.

4. The heat dissipation structure of an inner rotor hub motor in accordance with claim 3, wherein: protection machanism (2) include protective housing (22) that central axis (1) both ends correspond air pipe (31) position and offer, install waterproof ventilated membrane (21) in protective housing (22), still soon be equipped with in protective housing (22) and protect and press seat (23).

5. The heat dissipation structure of an inner rotor hub motor as claimed in claim 4, wherein: the protective pressing seat (23) is annular.

6. The heat dissipation structure of an inner rotor hub motor as claimed in claim 5, wherein: liquid cooling mechanism (4) include liquid cooling case (41) of installation on center pin (1), drain pipe (43) are installed to liquid cooling case (41) lower extreme, drain pipe (43) run through center pin (1) and stretch into in stator support (12), feed liquor pipe (42) are still installed on liquid cooling case (41) right side, feed liquor pipe (42) run through in center pin (1) and stretch into drain pipe (43), feed liquor pipe (42) end also extends to in stator support (12), install feed liquor pump (45) on feed liquor pipe (42), install recovery pump (44) on drain pipe (43).