New energy automobile hub motor structure

Abstract

The utility model discloses a hub motor structure of a new energy automobile. The hub motor structure comprises an end cover assembly, a shell assembly and a stator assembly, the external rotor motor structure scheme is adopted, and the external rotor motor structure scheme has the advantages that the external rotor motor structure scheme can be directly and completely arranged in an automobile hub, the installation is convenient, time and labor are saved, the overall arrangement of an automobile is facilitated, the structure is reasonable and compact, the manufacturing cost is low, the reliability of a motor mechanical structure and the overall performance are stable, and the motor and an automobile suspension are reliably fixed.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric automobile wheel hub motor design technical field, concretely relates to a new energy automobile wheel hub motor structure. BACKGROUND

[0002] With the rapid development of new energy automobile industry in China, the existing electric automobile driving form is divided into centralized driving and wheel hub driving, and the wheel hub motor is especially concerned. Compared with centralized driving, wheel hub driving saves transmission structure such as gearbox, differential, transmission shaft, directly places driving motor in the automobile wheel hub, directly provides power for the automobile, shortens the transmission chain, improves mechanical transmission efficiency, and greatly facilitates the overall vehicle arrangement.

[0003] The existing wheel hub motor is mostly an internal rotor motor, the internal rotor is connected with the wheel, and the external stator is connected with the automobile suspension through a fixed shell. Due to the restriction of the structure of the motor itself, the shell bears the entire automobile gravity and driving force, and has great hidden dangers. In addition, the existing wheel hub motor structure design is unreasonable, which makes its manufacturing and installation inconvenient, limits its specific application, and has poor use reliability. UTILITY MODEL CONTENT

[0004] The utility model discloses a new energy automobile wheel hub motor structure, adopts the external rotor motor structure scheme, and has the advantages that the motor can be directly and completely placed in the automobile wheel hub, installation is convenient, time and labor are saved, the overall arrangement of the automobile is facilitated, the structure is reasonable and compact, the manufacturing cost is low, the reliability of the mechanical structure of the motor is high, the overall performance is stable, the motor is fixed reliably with the automobile suspension, and the problems in the background technology are solved.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a new energy automobile wheel hub motor structure, including end cover assembly, shell assembly, stator assembly, the shell assembly is the bearing device of each assembly component, the end cover assembly is assembled on the shell assembly through screw, the stator assembly is assembled in the middle of the shell assembly and the end cover assembly, is supported and fixed through bearing, and is sealed through oil seal.

[0006] Further, the end cover assembly includes an end cover, a wheel hub mounting bolt, a screw and a first bearing.

[0007] Further, the wheel hub mounting bolt and the end cover are inlaid and integrated structure, and are arranged in a radial ring.

[0008] Further, the shell assembly includes a magnetic steel, a rotor iron core, a second bearing, a shell and an oil seal.

[0009] Further, the magnetic steel is arranged in a radial ring on the inner hole wall of the rotor iron core.

[0010] Further, the rotor core is inlaid on the inner hole wall of the shell.

[0011] Further, the stator assembly comprises a stator winding, a stator disc, a stator shaft, a magnetic encoder, a wire hole, and external splines.

[0012] Further, the stator winding is assembled on the outer circular surface of the stator disc.

[0013] Further, the stator disc is assembled on the stator shaft.

[0014] Further, the magnetic encoder is assembled on the side end surface of the stator shaft.

[0015] The advantages of the utility model: adopt outer rotor motor structure scheme, can directly and completely place in the automobile wheel hub, convenient to install, save time and effort, have facilitated the automobile overall arrangement and the structure is reasonable compact, the manufacturing cost is low, motor mechanical structure is reliable, overall performance is stable. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawing needed to be used in the embodiment or the prior art description. Obviously, the drawing in the following description is only exemplary, and for those skilled in the art, other implementation drawings can be obtained according to the provided drawings without creating labor.

[0017] The structure, proportion, size and the like shown in the specification are only used to cooperate with the content disclosed in the specification, for understanding and reading by those skilled in the art, and are not used to limit the limiting conditions that the utility model can be implemented, so they do not have the substantial meaning of technology, any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose that the utility model can produce, should still fall within the scope of the technical content disclosed by the utility model.

[0018] Fig. 1 A new energy automobile wheel hub motor structure assembly schematic view is provided for the embodiment 1 of the utility model;

[0019] Fig. 2 A new energy automobile wheel hub motor structure end cover assembly schematic view is provided for the embodiment 1 of the utility model;

[0020] Fig. 3 A new energy automobile wheel hub motor structure shell assembly schematic view is provided for the embodiment 1 of the utility model;

[0021] Fig. 4 A new energy automobile wheel hub motor structure stator assembly schematic view is provided for the embodiment 1 of the utility model;

[0022] The following are the labels in the diagram: 1-End cover assembly; 101-End cover; 102-Hub mounting bolt; 103-Screw; 104-First bearing; 2-Housing assembly; 201-Magnet; 202-Rotor core; 203-Second bearing; 204-Housing; 205-Oil seal; 3-Stator assembly; 301-Stator winding; 302-Stator disc; 303-Stator shaft; 304-Magnetic encoder; 305-Wire hole; 306-External spline. Detailed Implementation

[0023] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Most existing hub motors are internal rotor motors, where the internal rotor is connected to the wheel, and the external stator is connected to the vehicle's suspension via a fixed housing. Due to the limitations of the motor's structure, the housing must bear the entire weight of the vehicle and the driving force, posing a significant safety hazard. Furthermore, the current hub motor's structural design is unreasonable, making its manufacturing and installation inconvenient, costly, and time-consuming, thus limiting its practical applications and resulting in poor reliability.

[0025] like Figs. 1 to 4 As shown, this embodiment proposes a hub motor structure for a new energy vehicle, including an end cover assembly 1, a housing assembly 2, and a stator assembly 3; the end cover assembly 1 includes an end cover 101, hub mounting bolts 102, screws 103, and a first bearing 104; the housing assembly 2 includes a magnet 201, a rotor core 202, a second bearing 203, a housing 204, and an oil seal 205; the stator assembly 3 includes a stator winding 301, a stator disc 302, a stator shaft 303, a magnetic encoder 304, a wire hole 305, and an external spline 306.

[0026] Specifically, the housing assembly 2 is a load-bearing device for each assembly component; the end cap assembly 1 is assembled onto the housing assembly 2 by screws; the stator assembly 3 is assembled in the cavity formed by the housing assembly 2 and the end cap assembly 1, and is supported and fixed by the first bearing 104 and the second bearing 203, and sealed by the oil seal 205.

[0027] The end cover assembly 1 includes an end cover 101, a hub mounting bolt 102, a screw 103, a first bearing 104, and a hub mounting bolt 102.

[0028] The hub mounting bolt 102 and the end cover 101 are inlayed and integrated, and are radially arranged and used for assembling and fixing the hub.

[0029] The shell assembly 2 comprises a magnetic steel 201, a rotor core 202, a second bearing 203, a shell 204, an oil seal 205, and is assembled with the end cover assembly 1 to form an outer rotor part.

[0030] The magnetic steel 201 is radially arranged and pasted on the inner hole wall of the rotor core 202, and the rotor core 202 is inlaid in the inner hole wall of the shell 204.

[0031] The stator winding 301 is fixed on the stator disc 302 through press fitting, and the stator disc 302 is fixed on the stator shaft 303 through press fitting.

[0032] The stator assembly 3 is assembled in the inner cavity formed by the shell assembly 2 and the end cover assembly 1, and the stator shaft 303 is supported and fixed through the first bearing 104 and the second bearing 203.

[0033] The magnetic encoder 304 is assembled on the side end surface of the stator shaft 303, and the power supply line of the magnetic encoder 304 and the stator winding 301 is led out of the motor through the wire hole 305 on the stator shaft 303.

[0034] The stator assembly 3 is circumferentially fixed with the axle through the external spline 306.

[0035] Although the utility model has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model all belong to the scope of protection required by the utility model.

Claims

1. A new energy automobile wheel hub motor structure, characterized in that, Including end cover assembly (1), shell assembly (2), stator assembly (3);The shell assembly (2) is the bearing device of each assembly component;The end cover assembly (1) is assembled on the shell assembly (2) by screw (103);The stator assembly (3) is assembled in the shell assembly (2) and end cover assembly (1) between, is supported and fixed by first bearing (104) and second bearing (203), is sealed by oil seal (205).

2. The new energy vehicle wheel hub motor structure according to claim 1, characterized in that, The end cover assembly (1) includes end cover (101), wheel hub mounting bolt (102), screw (103), first bearing (104).

3. The new energy vehicle wheel hub motor structure according to claim 2, characterized in that, The wheel hub mounting bolt (102) is inlayed with the end cover (101) and is in an integral structure, and is radially arranged in a ring shape.

4. The new energy vehicle wheel hub motor structure according to claim 1, characterized in that, The shell assembly (2) includes magnetic steel (201), rotor core (202), second bearing (203), shell (204), oil seal (205).

5. The new energy vehicle wheel hub motor structure according to claim 4, characterized in that, The magnetic steel (201) is radially arranged in a ring shape on the inner hole wall of the rotor core (202).

6. The new energy vehicle wheel hub motor structure according to claim 4, characterized in that, The rotor core (202) is inlaid on the inner hole wall of the shell (204).

7. The new energy vehicle wheel hub motor structure according to claim 1, characterized in that, The stator assembly (3) includes stator winding (301), stator disc (302), stator shaft (303), magnetic encoder (304), wire passing hole (305), outer spline (306).

8. The new energy vehicle wheel hub motor structure according to claim 7, characterized in that, The stator winding (301) is assembled on the outer circular surface of the stator disc (302).

9. The new energy vehicle wheel hub motor structure according to claim 7, characterized in that, The stator disc (302) is assembled on the stator shaft (303).

10. The new energy vehicle wheel hub motor structure according to claim 7, characterized in that, The magnetic encoder (304) is assembled on the side end surface of the stator shaft (303).

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