CN222563611U

CN222563611U - Electric vehicle and motor and stator assembly thereof

Info

Publication number: CN222563611U
Application number: CN202420559411.3U
Authority: CN
Inventors: 王凯旋
Original assignee: Prestolite Electric Weifang Ltd
Current assignee: Prestolite Electric Weifang Ltd
Priority date: 2024-03-21
Filing date: 2024-03-21
Publication date: 2025-03-04
Anticipated expiration: 2034-03-21

Abstract

The electric automobile comprises a motor, the motor and a stator assembly, the motor comprises an integrated shell, an extrusion shell, a stator and an end cover, wherein one end of the extrusion shell is coaxially connected with one end of the integrated shell and encloses a containing space together with the integrated shell, the stator is installed in the containing space and is coaxially arranged with the integrated shell and the extrusion shell, the sum of the length of the integrated shell and the length of the extrusion shell is larger than that of the stator, the length of the extrusion shell is adjusted according to the length of the stator, and the end cover is installed at the other end of the extrusion shell. The length of the extrusion molding shell of the stator assembly can be increased along with the length increase of the stator iron core, so that the stator assembly has high compatibility, meanwhile, the need of developing a plurality of sets of integrated shell die casting molds is avoided, and the cost is reduced.

Description

Electric automobile and motor and stator assembly thereof

Technical Field

The utility model relates to an electric automobile, in particular to an electric automobile, a motor thereof and a stator assembly.

Background

The driving motor system for the electric automobile gradually develops two-in-one or multiple-in-one forms, and a motor shell and a controller box are generally integrated into a whole, so that the number of parts is reduced, and the integration level is improved. The motor shell is integrated with the controller box body and then is molded in a die-casting mode, the length of the die-casting integrated shell is assumed to be L1, the longest length of the stator core matched with the die-casting integrated shell is assumed to be L2, wherein L1 is larger than L2, and then L1-L2=L. Wherein L represents a space after the integrated casing accommodates the stator core. The method cannot adapt to stators with different lengths, even if a die casting die can be compatible with stator iron cores with certain lengths, if smaller-length stators are installed, the length of a machine shell is redundant, the whole machine shell has no competitiveness, if the length of the stator iron cores is increased, the current machine shell cannot accommodate the stator iron cores with increased lengths, or one or more sets of integrated machine shell die casting dies suitable for different iron core lengths are added, more die development cost is needed, the die manufacturing and storage cost is increased, and the cost reduction and synergy of enterprises are not facilitated.

Disclosure of utility model

The utility model aims to solve the technical problems of the prior art and provides an electric automobile, a motor and a stator assembly thereof.

In order to achieve the above object, the present utility model provides a stator assembly, comprising:

An integrated housing;

One end of the extrusion shell is coaxially connected with one end of the integrated shell, and the extrusion shell and the integrated shell jointly enclose a containing space;

A stator installed in the receiving space and coaxially disposed with the integrated housing and the extrusion housing, a sum of a length of the integrated housing and a length of the extrusion housing being greater than a length of the stator and adjusting the length of the extrusion housing according to the length of the stator, and

And the end cover is arranged at the other end of the extrusion shell.

The stator assembly further comprises a combined water channel, wherein the combined water channel comprises an integrated spiral water channel and an extrusion reciprocating water channel which are mutually communicated, the integrated spiral water channel is arranged in the integrated shell, and the extrusion reciprocating water channel is arranged in the extrusion shell.

The stator assembly is characterized in that the water inlet of the combined water channel is arranged on the extrusion reciprocating water channel, and the water outlet of the combined water channel is arranged on the integrated spiral water channel.

The stator assembly is characterized in that a water nozzle is arranged on the extrusion shell corresponding to the water inlet.

The stator assembly is characterized in that a plug is arranged on the integrated shell.

The stator assembly comprises an end cover, an extrusion shell, an integrated shell and a bolt, wherein the end cover is installed on the extrusion shell and the integrated shell through the bolt, and the bolt penetrates through installation holes of the end cover and the extrusion shell to be connected with the integrated shell.

The stator assembly is characterized in that a glue sealing layer is arranged between the end cover and the extrusion shell.

The stator assembly is characterized in that a glue sealing layer is arranged between the joint surfaces of the integrated shell and the extrusion shell.

In order to better achieve the above object, the present utility model further provides a motor, which includes the above stator assembly, wherein an integrated housing of the stator assembly, a motor housing, and a controller housing are integrally formed.

In order to better achieve the above purpose, the utility model also provides an electric automobile, wherein the electric automobile comprises the motor.

The utility model has the technical effects that:

The length of the extrusion molding shell of the stator assembly can be increased along with the length increase of the stator iron core, so that the stator assembly has high compatibility, meanwhile, the need of developing a plurality of sets of integrated shell die casting molds is avoided, and the cost is reduced.

The utility model will now be described in more detail with reference to the drawings and specific examples, which are not intended to limit the utility model thereto.

Drawings

Fig. 1 is a schematic structural diagram of an electric vehicle according to an embodiment of the utility model;

FIG. 2 is a schematic diagram of a motor according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a stator assembly according to an embodiment of the present utility model;

FIG. 4 is an exploded view of FIG. 3;

FIG. 5 is a schematic view of a combined waterway structure according to an embodiment of the present utility model;

FIG. 6 is a schematic view of an integrated spiral waterway structure according to an embodiment of the present utility model;

FIG. 7 is a schematic view of an extrusion shuttle channel according to an embodiment of the present utility model.

Wherein reference numerals are used to refer to

1 Vehicle frame

2 Travelling wheels

3 Motor

31 Stator assembly

311 Stator

312 Integrated housing

3121 Plug

313 Squeeze shell

3131 Water tap

314 End cap

315 Bolt

316 Combined water channel

3161 Integrated spiral waterway

3162 Squeezing reciprocating water channel

317 Water outlet

318 Water inlet

32 Rotor

33 Cover plate

4 Suspension bracket

5 Rear axle

Detailed Description

The structural and operational principles of the present utility model are described in detail below with reference to the accompanying drawings:

Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of an electric vehicle according to an embodiment of the utility model, and fig. 2 is a schematic structural diagram of a motor 3 according to an embodiment of the utility model. The electric automobile comprises a frame 1, travelling wheels 2 and a motor 3, wherein the travelling wheels 2 are connected with the frame 1, the motor 3 is arranged on the frame 1 through a suspension bracket 4 and is connected with a rear axle 5, and the travelling wheels 2 are driven through the rear axle 5. The motor 3 comprises a rotor 32, a stator assembly 31 and a cover plate 33, wherein the rotor 32 is arranged in the stator assembly 31, two ends of the rotor 32 are respectively arranged and supported on an end cover 314 and an integrated shell 312 and are coaxially arranged with a stator 311, the cover plate 33 is arranged at the other end of the integrated shell 312, and the integrated shell 312 of the stator assembly 31, the motor shell and a controller box are integrally formed. Since the components, structures, mutual positional relationships, connection relationships, functions and the like of the electric vehicle and other parts of the motor 3 are well known in the art, the details of the stator assembly 31 of the present utility model will not be described herein.

Referring to fig. 3 and 4, fig. 3 is a schematic structural diagram of a stator assembly 31 according to an embodiment of the utility model, and fig. 4 is an exploded view of fig. 3. The stator assembly 31 of the present utility model includes an integrated housing 312, a pressing housing 313 having one end coaxially connected to one end of the integrated housing 312 and enclosing a receiving space together with the integrated housing 312, a stator 311 installed in the receiving space and coaxially disposed with the integrated housing 312 and the pressing housing 313, a sum of a length of the integrated housing 312 and a length of the pressing housing 313 being greater than a length of the stator 311 and adjusting the length of the pressing housing 313 according to the length of the stator 311, and an end cap 314 installed at the other end of the pressing housing 313.

Referring to fig. 5-7, fig. 5 is a schematic diagram of a combined water channel 316 according to an embodiment of the present utility model, fig. 6 is a schematic diagram of an integrated spiral water channel 3161 according to an embodiment of the present utility model, and fig. 7 is a schematic diagram of an extrusion round-trip water channel 3162 according to an embodiment of the present utility model. The present utility model also includes a composite waterway 316, the composite waterway 316 including an integrated helical waterway 3161 and a squeeze shuttle waterway 3162 in communication with each other, the integrated helical waterway 3161 being disposed within the integrated housing 312, the squeeze shuttle waterway 3162 being disposed within the squeeze housing 313. Wherein the water inlet 318 of the combined water channel 316 is disposed on the pressing round-trip water channel 3162, and the water outlet 317 of the combined water channel 316 is disposed on the integrated spiral water channel 3161. After the integrated shell 312 and the extrusion shell 313 are combined, the water channel is communicated, and after the bolts 315 are connected with the end covers 314, the other ends of the extrusion shell 313 are blocked, and the joint surfaces are glued and sealed, so that the complete water channel is formed.

As shown in fig. 4, a water nozzle 3131 is provided on the pressing housing 313 of the present embodiment corresponding to the water inlet 318. The integrated housing 312 is provided with a plug 3121. The end cap 314 is mounted on the compression housing 313 and the integrated housing 312 by bolts 315, and the bolts 315 penetrate through mounting holes of the end cap 314 and the compression housing 313 to be connected with the integrated housing 312. Wherein, a glue sealing layer is arranged between the end cover 314 and the extrusion shell 313. A glue sealing layer is arranged between the joint surfaces of the integrated shell 312 and the extrusion shell 313.

The present utility model combines the die-cast integrated housing 312 with the extrusion molded extrusion housing, the extrusion molded extrusion housing can increase with the length of the stator 311 core, and the length of the die-cast integrated housing is L1, and the longest length of the stator 311 core is L2, where L1> L2, L1-l2=l (i.e. the space after housing accommodates the core), if the length of the stator 311 core is L3 (L3 > L2), L1 cannot accommodate L3, and in order to enable the housing to accommodate L3, an extrusion housing with a length of L4 is provided, where l1+l4-l3=l (i.e. the space after housing the core is assembled). Wherein L represents the space after the integrated housing length+the extrusion housing length-the core length of the stator 311, i.e., the space after the combined housing accommodates the core. Namely, the extrusion shell 313 formed by extrusion can be increased along with the length increase of the stator 311 iron core, and after being combined with the integrated shell 312 formed by die casting, the stator 311 iron core with different lengths can be matched, so that the compatibility is excellent, a plurality of sets of integrated shell die casting dies which are required to be developed for the stator 311 iron cores with different lengths are avoided, and the cost is reduced.

Of course, the present utility model is capable of other various embodiments and its several details are capable of modification and variation in light of the present utility model, as will be apparent to those skilled in the art, without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. A stator assembly, characterized by comprising:

Integrated housing;

An extruded shell, one end of which is coaxially connected to one end of the integrated shell, and together with the integrated shell, encloses an accommodation space;

a stator installed in the accommodating space and coaxially arranged with the integrated housing and the extruded housing; the sum of the length of the integrated housing and the length of the extruded housing is greater than the length of the stator, and the length of the extruded housing is adjusted according to the length of the stator; and

An end cover is mounted on the other end of the extruded shell.

2. The stator assembly as described in claim 1 is characterized in that it also includes a combined water channel, the combined water channel includes an integrated spiral water channel and an extruded reciprocating water channel that are interconnected, the integrated spiral water channel is arranged in the integrated shell, and the extruded reciprocating water channel is arranged in the extruded shell.

3. The stator assembly as described in claim 2 is characterized in that the water inlet of the combined water channel is arranged on the extrusion reciprocating water channel, and the water outlet of the combined water channel is arranged on the integrated spiral water channel.

4. The stator assembly as described in claim 3 is characterized in that a water nozzle is provided on the extruded shell corresponding to the water inlet.

5. The stator assembly as described in claim 3 is characterized in that a plug is provided on the integrated shell.

6. The stator assembly according to claim 1 is characterized in that the end cover is mounted on the extruded shell and the integrated shell by bolts, and the bolts penetrate mounting holes of the end cover and the extruded shell to be connected to the integrated shell.

7. The stator assembly as described in claim 6 is characterized in that a glue sealing layer is provided between the end cover and the extruded shell.

8. The stator assembly as described in claim 1 is characterized in that a glue sealing layer is provided between the joint surfaces of the integrated shell and the extruded shell.

9. A motor, characterized in that it comprises the stator assembly according to any one of claims 1 to 8, wherein the integrated housing of the stator assembly is an integrally formed part with the motor housing and the controller housing.

10. An electric vehicle, characterized by comprising the motor according to claim 9.