CN212012351U

CN212012351U - High-torque circumference returns high heat dissipation permanent magnetism wheel hub motor device in shape water route

Info

Publication number: CN212012351U
Application number: CN202020570811.6U
Authority: CN
Inventors: 梁泊山; 黄林森; 孙玉凤
Original assignee: Ningde Contemporary Electric Technology Co ltd
Current assignee: Ningde Contemporary Electric Technology Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-11-24
Anticipated expiration: 2030-04-16

Abstract

The utility model discloses a high-efficiency high-heat-dissipation permanent magnet hub motor device with a high-torque circular water path, which comprises a mandrel, wherein the left side and the right side of the mandrel are respectively connected with a front bearing inner cover and a rear bearing inner cover; the core shaft is connected with a stator component, and the inner wall of the shell is connected with a rotor component; the mandrel is provided with a lead hole; the mandrel is provided with a cooling liquid water inlet and a cooling liquid water outlet. The utility model discloses simple structure, the stator mount pad is except playing being fixed with winding stator core, play the effect of cooling motor simultaneously, on the inner ring of stator fixing base, arrange to process out along the shape water route ring that returns of circumference, the coolant liquid returns the shape along half circumference earlier and flows, flow another half circumference to the other end again, it flows to return the shape equally, the thermal diffusivity is better, the cooling effect is better, the motor temperature rise is lower, motor efficiency is higher, the sealed inlet outlet of double containment ring has been realized simultaneously, replace the original soft high pressure water pipe of adoption to draw forth need maintain a difficult problem.

Description

High-torque circumference returns high heat dissipation permanent magnetism wheel hub motor device in shape water route

Technical Field

The utility model relates to a motor field especially involves a high-efficient high heat dissipation permanent magnetism in-wheel motor device in high torque circumference circle shape water route.

Background

In recent years, in the technical field of electrically driven vehicles, direct drive assemblies focusing on hub driving are widely concerned, and as a new electric vehicle driving mode, a hub motor has the advantages that an outer rotor of the driving motor is directly and fixedly connected with a rim of a tire, a speed reducer is omitted, a mechanical structure is simplified, transmission efficiency is improved, vehicle mass is reduced, and the vacant space of a vehicle body is enlarged, so that the direct drive assembly becomes a key development direction of the electric vehicle.

At present, a driving mode different from a traditional wheel is adopted, the hub motor is driven in a distributed mode, a whole vehicle battery generates electric power, the hub motor directly converts electric energy into mechanical energy to drive the whole vehicle to run, the hub motor is directly arranged in a rim to drive the wheel, and the electric energy utilization efficiency is improved. However, in this type of driving system, the motor itself generates heat, and the heat generated by the tire and the brake is also transferred to the periphery of the motor, thereby increasing the difficulty of controlling the temperature rise of the motor and limiting the output power and the output torque of the in-wheel motor.

In the prior art, no better scheme is available for solving the cooling problem of the hub motor, and no better cooling structure is available in a limited space for efficiently taking away heat caused by heat transfer of tires and brakes and self heating of the motor, so that the hub motor cannot be commercially applied.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the weak point among the above-mentioned prior art and provide a compact structure, small, the high-efficient high heat dissipation permanent magnetism in-wheel motor device in practical high torque circumference return water route.

The utility model discloses a realize through following mode:

a high-efficiency high-heat-dissipation permanent magnet hub motor device with a high-torque circumferential water circuit comprises a mandrel, wherein the left side and the right side of the mandrel are respectively connected with a front bearing inner cover and a rear bearing inner cover, and the front bearing inner cover and the rear bearing inner cover can rotate relative to the mandrel; the left side and the right side of the mandrel are respectively connected with a cylindrical roller bearing and an angular contact ball bearing, and the cylindrical roller bearing and the angular contact ball bearing are respectively positioned on the outer sides of the front bearing inner cover and the rear bearing inner cover; the cylindrical roller bearing and the angular contact ball bearing are respectively connected with a front cover and a rear cover; the front cover and the rear cover are respectively connected with the front bearing inner cover and the rear bearing inner cover, a shell is connected between the front cover and the rear cover, and the front bearing inner cover, the front cover, the shell, the rear bearing inner cover and the rear cover form a sealed cabin for assembling the stator assembly and the rotor assembly;

the core shaft is connected with a stator assembly, the inner wall of the shell is connected with a rotor assembly, and the rotor assembly is matched with the stator assembly; the spindle is hollow with openings at two ends, the left end of the spindle is connected with a rotary transformer stator, and the front cover is connected with a rotary transformer rotor matched with the rotary transformer stator through a rotary transformer rotor seat; more than one lead hole is formed in the mandrel; the mandrel is provided with a cooling liquid water inlet and a cooling liquid water outlet, and the cooling liquid water inlet and the cooling liquid water outlet respectively extend to the end part of the mandrel through corresponding extension channels arranged in the mandrel;

stator module is including connecting in the stator mount pad on the dabber, be connected with the winding stator on the stator mount pad, stator module's stator binding post and the rotary transformer binding post of rotary transformer stator pass the terminal hole respectively and extend to the tip outside of dabber from the inside of dabber.

Furthermore, the stator mounting seat comprises a stator mounting seat inner ring and a stator mounting seat outer ring connected with the stator mounting seat inner ring, and the stator mounting seat outer ring is welded with the stator mounting seat inner ring into a whole by friction stir welding; the stator mounting seat is characterized in that a mounting hole matched with the mandrel is formed in the inner ring of the stator mounting seat, a clip-shaped cooling liquid loop is formed on the outer wall of the inner ring of the stator mounting seat, a water path water inlet and a water path water outlet are connected to the inner ring of the stator mounting seat, and the water path water inlet and the water path water outlet are respectively matched with the cooling liquid water inlet and the cooling liquid water outlet.

Furthermore, the cooling liquid loop is divided into a left cooling liquid loop and a right cooling liquid loop through a partition rib, the left cooling liquid loop is communicated with the right cooling liquid loop, a water path water inlet and a water path water outlet are respectively communicated with the left cooling liquid loop and the right cooling liquid loop, and cooling liquid firstly flows along the left cooling liquid loop in a loop shape and then flows to the right cooling liquid loop in the loop shape.

Further, a round nut is connected to the mandrel.

Furthermore, a metal waterproof ventilation valve is connected to the rear cover.

Furthermore, the front cover and the rear cover are respectively connected with oil nozzles.

Further, an oil baffle disc is connected to the left side of the mandrel, and the oil baffle disc is located on the left side of the cylindrical roller bearing.

The beneficial effects of the utility model reside in that: 1. the efficient and high heat dissipation of the circumferential water channel means that a stator mounting seat of the motor is composed of two parts, a water channel is arranged on an inner ring, and an outer ring is reliably welded with the inner ring into a whole by friction stir welding.

2. The stator mounting seat plays and is fixed with winding stator core outside, play the effect of cooling motor simultaneously, on the inner ring of stator fixing base, arrange and process out along the shape water route ring of returning of circumference, the coolant liquid is earlier along half circumference shape flow of returning, flow to other half circumference again to the other end, it is equally to return the shape and flow, the thermal diffusivity is better, the cooling effect is better, the motor temperature rise is lower, motor efficiency is higher, the sealed inlet outlet of double containment ring has been realized simultaneously, replace the original adoption soft high pressure water pipe and drawn forth need maintain the difficult problem.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the mandrel of the present invention;

FIG. 3 is a schematic view of the structure of the cooling liquid inlet of the present invention;

fig. 4 is a schematic structural view of the stator mounting seat of the present invention;

FIG. 5 is a front view of the inner ring structure of the stator mounting base of the present invention;

fig. 6 is a rear view of the inner ring structure of the stator mounting base of the present invention;

figure 7 is a sectional view of the stator assembly structure of the present invention;

figure 8 the utility model discloses stator module structure stereogram.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are 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. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the 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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

a high-efficiency high-heat-dissipation permanent magnet hub motor device with a high-torque circular waterway is shown in figures 1-8 and comprises a mandrel 44, wherein the left side and the right side of the mandrel 44 are respectively connected with a front bearing inner cover 1 and a rear bearing inner cover 20, and the front bearing inner cover 1 and the rear bearing inner cover 20 can rotate relative to the mandrel 44; the left side and the right side of the core shaft 44 are respectively connected with a cylindrical roller bearing 2 and an angular contact ball bearing 23, and the cylindrical roller bearing 2 and the angular contact ball bearing 23 are respectively positioned on the outer sides of the front bearing inner cover 1 and the rear bearing inner cover 20; the cylindrical roller bearing 2 and the angular contact ball bearing 23 are respectively connected with a front cover 45 and a rear cover 46; the front cover 45 and the rear cover 46 are respectively connected with the front bearing inner cover 1 and the rear bearing inner cover 20, a shell 47 is connected between the front cover 45 and the rear cover 46, and the front bearing inner cover 1, the front cover 45, the shell 47, the rear bearing inner cover 20 and the rear cover 46 form a sealed cabin for assembling the stator assembly 18 and the rotor assembly 17.

Further, to fasten the angular ball bearing 23, a round nut 25 for fastening the angular ball bearing 23 is connected to the spindle 44.

Further, the rear cover 46 is connected with a metal waterproof vent valve 19 for ventilation of the sealed cabin; the front cover 45 and the rear cover 46 are respectively connected with oil nozzles 14 for adding lubricating oil to the cylindrical roller bearing 2 and the angular ball bearing 23.

Further, the oil baffle disc 3 is connected to the left side of the mandrel 44, the oil baffle disc 3 is located on the left side of the cylindrical roller bearing 2, the inner ring of the cylindrical roller bearing 2 is non-rotating, and different from a conventional bearing, the conventional bearing is used in such a way that the inner ring rotates along with the shaft, and grease is thrown onto the outer ring; the application of external rotor electric machine, cylindrical roller bearing 2's outer lane rotates, and just the grease is outwards got rid of, but when the operation is shut down after, and the base oil can spill over when running high temperature, prevents like this by oil baffle disc 3 can effectively that the grease from spilling over to become the installation intracavity soon, prevents the grease loss, and makes motor bearing lubricated bad and damage.

Specifically, the core shaft 44 is connected with a stator assembly 18, the inner wall of the housing 47 is connected with a rotor assembly 17, the rotor assembly 17 is matched with the stator assembly 18, and the rotor assembly 17 is in the prior art in the field, that is, the housing 47 is connected with magnetic steel through a rotor yoke; the mandrel 44 is hollow with two open ends, the left end of the mandrel is connected with a rotary transformer stator 48, and the front cover 45 is connected with a rotary transformer rotor 5 matched with the rotary transformer stator 48 through a rotary transformer rotor seat 6; more than one lead hole 49 is arranged on the mandrel 44; the mandrel 44 is provided with a cooling liquid water inlet 50 and a cooling liquid water outlet 51, and the cooling liquid water inlet 50 and the cooling liquid water outlet 51 extend to the end of the mandrel 44 through corresponding extension channels arranged in the mandrel 44, so that the installation of a cooling liquid joint is facilitated.

Specifically, the stator assembly 18 includes a stator mounting seat 185 connected to the mandrel 44, a winding stator 187 is connected to the stator mounting seat 185, and the stator terminals 182 of the stator assembly 18 and the rotation terminals 183 of the rotation stator 48 extend from the inside of the mandrel 44 to the outside of the end of the mandrel 44 through the lead holes 49, respectively, so as to facilitate wiring.

Specifically, the stator mounting seat 185 comprises a stator mounting seat inner ring 1851 and a stator mounting seat outer ring 1852 connected with the stator mounting seat inner ring 1851, and the stator mounting seat outer ring 1852 is welded with the stator mounting seat inner ring 1851 into a whole by friction stir welding; a mounting hole 1853 matched with the mandrel 44 is formed in the stator mounting seat inner ring 1851, a cooling liquid loop 1854 in a shape of a Chinese character hui is formed on the outer wall of the stator mounting seat inner ring 1851, a waterway water inlet 1855 and a waterway water outlet 1856 are connected to the stator mounting seat inner ring 1851, and the waterway water inlet 1855 and the waterway water outlet 1856 are respectively matched with the cooling liquid water inlet 50 and the cooling liquid water outlet 51.

Specifically, the square-loop cooling liquid loop 1854 is divided into a left square-loop cooling liquid loop 1858 and a right square-loop cooling liquid loop 1859 by a separating rib 1857, the left square-loop cooling liquid loop 1858 is communicated with the right square-loop cooling liquid loop 1859, wherein a water path water inlet 1855 and a water path water outlet 1856 are respectively communicated with the left square-loop cooling liquid loop 1858 and the right square-loop cooling liquid loop 1859, cooling liquid flows along the square-loop cooling liquid loop 1858 in a circle first and then flows to the right square-loop cooling liquid loop 1859, and flows in the same circle, so that the cooling liquid is better in heat dissipation, better in cooling effect, lower in motor temperature rise, higher in motor efficiency, and meanwhile, the double-seal water inlet and outlet are realized, and the problem that maintenance is needed by adopting a soft high-pressure water pipe in the prior art is replaced.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a high-efficient high heat dissipation permanent magnetism wheel hub motor device in shape water route is returned to high torque circumference which characterized in that: the bearing comprises a mandrel (44), wherein the left side and the right side of the mandrel (44) are respectively connected with a front bearing inner cover (1) and a rear bearing inner cover (20), and the front bearing inner cover (1) and the rear bearing inner cover (20) can rotate relative to the mandrel (44); the left side and the right side of the mandrel (44) are respectively connected with a cylindrical roller bearing (2) and an angular contact ball bearing (23), and the cylindrical roller bearing (2) and the angular contact ball bearing (23) are respectively positioned on the outer sides of the front bearing inner cover (1) and the rear bearing inner cover (20); the cylindrical roller bearing (2) and the angular contact ball bearing (23) are respectively connected with a front cover (45) and a rear cover (46); the front cover (45) and the rear cover (46) are respectively connected with the front bearing inner cover (1) and the rear bearing inner cover (20), a shell (47) is connected between the front cover (45) and the rear cover (46), and the front bearing inner cover (1), the front cover (45), the shell (47), the rear bearing inner cover (20) and the rear cover (46) form a sealed cabin for assembling the stator assembly (18) and the rotor assembly (17);

the core shaft (44) is connected with a stator assembly (18), the inner wall of the shell (47) is connected with a rotor assembly (17), and the rotor assembly (17) is matched with the stator assembly (18); the mandrel (44) is hollow with openings at two ends, the left end of the mandrel is connected with a rotary transformer stator (48), and the front cover (45) is connected with a rotary transformer rotor (5) matched with the rotary transformer stator (48) through a rotary transformer rotor seat (6); more than one lead hole (49) is formed in the mandrel (44); the mandrel (44) is provided with a cooling liquid water inlet (50) and a cooling liquid water outlet (51), and the cooling liquid water inlet (50) and the cooling liquid water outlet (51) respectively extend to the end part of the mandrel (44) through corresponding extension channels arranged in the mandrel (44);

the stator assembly (18) comprises a stator mounting seat (185) connected to the mandrel (44), a winding stator (187) is connected to the stator mounting seat (185), and a stator wiring terminal (182) of the stator assembly (18) and a rotary wiring terminal (183) of the rotary stator (48) respectively penetrate through the lead holes (49) and extend from the inside of the mandrel (44) to the outer side of the end part of the mandrel (44).

2. The high-efficiency high-heat-dissipation permanent magnet hub motor device with the high-torque circumferential water path as claimed in claim 1, wherein: the stator mounting seat (185) comprises a stator mounting seat inner ring (1851) and a stator mounting seat outer ring (1852) connected with the stator mounting seat inner ring (1851), and the stator mounting seat outer ring (1852) is welded with the stator mounting seat inner ring (1851) into a whole by friction stir welding; the stator mounting seat inner ring (1851) is internally provided with a mounting hole (1853) matched with the mandrel (44), the outer wall of the stator mounting seat inner ring (1851) is provided with a cooling liquid loop (1854), the stator mounting seat inner ring (1851) is connected with a water path water inlet (1855) and a water path water outlet (1856), and the water path water inlet (1855) and the water path water outlet (1856) are respectively matched with the cooling liquid water inlet (50) and the cooling liquid water outlet (51).

3. The high-efficiency high-heat-dissipation permanent magnet hub motor device with the high-torque circumferential water path as claimed in claim 2, wherein: the square-shaped cooling liquid loop (1854) is divided into a left square-shaped cooling liquid loop (1858) and a right square-shaped cooling liquid loop (1859) through a partition rib (1857), the left square-shaped cooling liquid loop (1858) is communicated with the right square-shaped cooling liquid loop (1859), a water inlet (1855) and a water outlet (1856) of the water path are respectively communicated with the left square-shaped cooling liquid loop (1858) and the right square-shaped cooling liquid loop (1859), and the cooling liquid firstly flows along the left square-shaped cooling liquid loop (1858) and then flows to the right square-shaped cooling liquid loop (1859).

4. The high-efficiency high-heat-dissipation permanent magnet hub motor device with the high-torque circumferential water path as claimed in claim 1, wherein: the mandrel (44) is connected with a round nut (25).

5. The high-efficiency high-heat-dissipation permanent magnet hub motor device with the high-torque circumferential water path as claimed in claim 1, wherein: the rear cover (46) is connected with a metal waterproof ventilation valve (19).

6. The high-efficiency high-heat-dissipation permanent magnet hub motor device with the high-torque circumferential water path as claimed in claim 1, wherein: the front cover (45) and the rear cover (46) are respectively connected with an oil nozzle (14).

7. The high-efficiency high-heat-dissipation permanent magnet hub motor device with the high-torque circumferential water path as claimed in claim 1, wherein: the left side of the mandrel (44) is connected with an oil baffle disc (3), and the oil baffle disc (3) is positioned on the left side of the cylindrical roller bearing (2).