CN215498527U - Integrated motor structure with double motors and integrated flywheel housing and motor housing - Google Patents

Abstract

The utility model provides an integral double-motor structure with a flywheel shell and a motor shell integrated, wherein the motor shell and an engine flywheel shell are integrated into a whole, a water channel is arranged in the motor shell and is constructed into more than 2 annular structures, and a rotary transformer is arranged between a first rotor assembly and an engine body. The utility model has higher generating power, shortens the length of the motor and can ensure that the temperature of the motor can be kept at a proper temperature for working.

Description

Integrated motor structure with double motors and integrated flywheel housing and motor housing

Technical Field

The utility model relates to the technical field of range extenders of new energy automobiles, in particular to an integral double-motor structure with a flywheel shell and a motor shell integrated.

Background

The extended range electric vehicle is characterized in that the whole vehicle can achieve all power performances in a pure electric mode, and when the vehicle-mounted rechargeable battery cannot meet the driving range requirement, the vehicle-mounted auxiliary power generation device is turned on to provide electric energy for the power system so as to prolong the driving range. The range extending type electric automobile has a range extender which generally comprises an engine and a generator, charges a power battery of the automobile and can directly drive a motor to run.

The range extender mainly comprises an engine and a generator, the bottleneck problem restricting the wide application of the range extender is the lack of the generator with high efficiency, high reliability and stable output voltage, the connection mode of the generator determines the conversion efficiency of energy, the structure and the weight of the range extender are influenced, and the structural arrangement and the performance of the whole vehicle are further influenced.

The range extender can effectively solve the problem of mileage anxiety of the pure electric vehicle and becomes the development trend of new energy vehicles. The range extender is generally composed of an engine + a generator. For example, chinese patent CN108995542A discloses a range extender for an electric vehicle with an integrated motor. This motor integrated form is range extender for electric automobile includes: an engine body; an engine output shaft; a connecting plate; and a generator comprising: the motor comprises a rotary transformer, a motor rotor assembly, a motor stator assembly, a motor shell and a motor rear cover, wherein the motor shell is fixed on a connecting plate, and the motor stator assembly is put into the motor shell from the front end of the motor shell and is sleeved on the motor shell in a hot manner; the motor rotor assembly is coaxially disposed within the motor stator assembly and has a motor rotor support that extends into the connection plate and is directly connected to the engine output shaft, the resolver comprising: a resolver stator and a resolver rotor. The rotary transformer rotor is arranged on the motor rotor bracket, and the rotary transformer stator is arranged on the connecting plate.

The structure still has some defects, the generator has single function, and the generating efficiency is low; the motor rotor bracket extends into the connecting plate and is directly connected to an output shaft of an engine, so that the mounting is complicated and the structure is complex; the motor is not provided with a good cooling structure and is easy to overheat.

SUMMERY OF THE UTILITY MODEL

The utility model provides an integral double-motor structure with a flywheel shell and a motor shell integrated, which has higher generating power, shortens the length of the motor and can ensure that the temperature of the motor can be kept to work at a proper temperature.

In the present invention, the front end refers to the front end in the power transmission direction, that is, the engine is located at the front end, and the rear end cover is located at the rear end.

The technical scheme of the utility model is as follows: an integrated motor structure with double motors and integrated flywheel shells and motor shells comprises a first bolt, a motor shell, a rotary transformer, a second bolt, a first stator component, a first rotor component, a third bolt, a second stator component, a second rotor component, a fourth bolt and a rear end cover, wherein the first rotor component is movably sleeved on the outer wall of the first stator component, the second rotor component is movably sleeved on the outer wall of the second stator component, the rear end cover is connected with the rear end of the motor shell through the fourth bolt, the first rotor component is connected with an engine crankshaft through the second bolt,

the motor casing and the engine flywheel casing are integrated into a whole, the motor casing is connected with the engine body through the first bolt, a connecting plate in the prior art is omitted, the overall length of the motor is shortened, the structure is compact, the installation is convenient, a shock absorber does not need to be twisted, and the power generation efficiency is higher.

The motor casing is internally provided with a water channel, the water channel is constructed into an annular structure more than 2, the annular water channel is adopted, the structure is simple, the motor casing adopts a multi-ring-shaped water channel with a better cooling effect, and the motor temperature can be ensured to be kept working at a proper temperature. The water channel is completely integrated inside the motor shell, and a water inlet and a water outlet are processed outside the motor shell and connected with an external cooling system.

The rotary transformer is arranged between the first rotor assembly and the engine body, so that the overall axial length of the motor is shortened, and the structure is more compact.

The first stator assembly is disposed at an axial direction front end of the second stator assembly, the first rotor assembly is disposed at an axial direction front end of the second rotor assembly, and the first rotor assembly and the second stator assembly are connected by a third bolt. The integrated double-motor structure is adopted, namely two stators and rotors are serially arranged in the same motor shell, and the double motors have higher generating power.

Preferably, the water channel and the motor casing are integrally cast. The water course adopts the casting mode one-time casting shaping, need not with other part cooperations, simple to operate, simple structure.

Preferably, the resolver includes: the rotary transformer comprises a rotary transformer stator and a rotary transformer rotor, wherein the rotary transformer rotor is connected with the motor shell, and the rotary transformer rotor is connected with an engine crankshaft. Compact structure, no increase of axial distance and short motor length.

Drawings

Fig. 1 is a schematic cross-sectional structural view of an integrated dual-motor structure with a flywheel housing and a motor housing integrated.

Fig. 2 is a schematic diagram of a waterway in accordance with the present invention.

Fig. 3 is an enlarged view of the mounting structure of the resolver according to the present invention.

In the figure: 1. the engine comprises an engine body, 2, an engine crankshaft, 3, a first bolt, 4, a motor shell, 401, a water channel, 5, a rotary transformer, 501, a rotary transformer stator, 502, a rotary transformer rotor, 6, a second bolt, 7, a first stator group, 8, a first rotor component, 9, a third bolt, 10, a second stator component, 11, a second rotor component, 12, a fourth bolt and 13, and a rear end cover.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and detailed description, wherein the exemplary embodiments and descriptions are provided for illustration of the utility model and not for limitation of the utility model.

In the description of the present invention, it is to be understood that the terms "left", "right", "upper", "lower", "front", "rear", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that a device or structure referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

Example 1:

as shown in fig. 1, an integral dual-motor flywheel housing and motor housing integrated motor structure includes a first bolt 3, a motor housing 4, a rotary transformer 5, a second bolt 6, a first stator assembly 7, a first rotor assembly 8, a third bolt 9, a second stator assembly 10, a second rotor assembly 11, a fourth bolt 12 and a rear end cover 13, wherein the first rotor assembly 8 is movably sleeved on the outer wall of the first stator assembly 7, the second rotor assembly 11 is movably sleeved on the outer wall of the second stator assembly 10, the rear end cover 13 is connected with the rear end of the motor housing 4 through the fourth bolt 12, the first rotor assembly 8 is connected with an engine crankshaft 2 through the second bolt 6, the motor housing 4 and an engine flywheel housing are integrated, and the motor housing 4 is connected with an engine body 1 through the first bolt 3;

as shown in fig. 2, a water channel 401 is provided inside the motor case 4, the water channel 401 is configured as an annular structure of 2 or more, the resolver 5 is provided at a position between the first rotor assembly 8 and the engine body 1, the first stator assembly 7 is provided at an axial direction front end of the second stator assembly 10, the first rotor assembly 8 is provided at an axial direction front end of the second rotor assembly 11, and the first rotor assembly 8 and the second stator assembly 10 are connected by a third bolt 9.

The working principle of the embodiment is as follows: the motor is a generator, and the power transmission path is as follows: the engine crankshaft 2 outputs power, the engine crankshaft 2 is connected to drive a motor rotor to rotate, a generator generates power, a double-motor structure can output two paths of current, one path of current is used for driving a vehicle, electric energy is output to a generator controller through a cable, the electric energy is output through the generator controller to be used by the whole vehicle, the other path of current is used for starting the engine, and meanwhile the motor is cooled through a water channel 401.

Example 2:

as shown in fig. 1, an integral dual-motor structure with a flywheel housing and a motor housing integrated together comprises a first bolt 3, a motor housing 4, a rotary transformer 5, a second bolt 6, a first stator assembly 7, a first rotor assembly 8, a third bolt 9, a second stator assembly 10, a second rotor assembly 11, a fourth bolt 12 and a rear end cover 13, wherein the first rotor assembly 8 is movably sleeved on the outer wall of the first stator assembly 7, the second rotor assembly 11 is movably sleeved on the outer wall of the second stator assembly 10, the rear end cover 13 is connected with the rear end of the motor housing 4 through the fourth bolt 12, the first rotor assembly 8 is connected with an engine crankshaft 2 through the second bolt 6,

in this embodiment, motor casing 4 and engine flywheel shell are integrated integrative, motor casing 4 has cancelled the connecting plate among the prior art through first bolt 3 and engine body 1 connection, has shortened the whole length of motor, compact structure, and simple to operate need not twist reverse the bumper shock absorber, and the generating efficiency is higher.

As shown in fig. 2, in this embodiment, a water channel 401 is provided inside the motor casing 4, the water channel 401 is configured as more than 2 annular structures, and the annular water channel 401 is adopted, so that the structure is simple, and the multi-annular water channel 401 with better cooling effect is adopted for the motor casing 4, so that the motor can be ensured to operate at a proper temperature. The water channel 401 is completely integrated inside the motor housing 4, and a water inlet and a water outlet are processed outside the motor housing 4 and connected with an external cooling system.

The rotary transformer 5 is arranged between the first rotor assembly 8 and the engine body 1, so that the axial length of the whole motor is shortened, and the structure is more compact.

The first stator assembly 7 is disposed at the axial direction front end of the second stator assembly 10, the first rotor assembly 8 is disposed at the axial direction front end of the second rotor assembly 11, and the first rotor assembly 8 and the second stator assembly 10 are connected by a third bolt 9. An integral double-motor structure is adopted, namely two stators and rotors are serially arranged in the same motor shell 4, and the double motors have higher generating power.

In this embodiment, the water channel 401 and the motor case 4 are integrally cast. The water channel 401 is formed by casting in a casting mode at one time, does not need to be matched with other parts, and is convenient to install and simple in structure.

As shown in fig. 3, in the present embodiment, the rotary transformer 5 includes: a resolver stator 501 and a resolver rotor 502, the resolver rotor 502 is connected to the motor case 4, and the resolver rotor 502 is connected to the engine crankshaft 2. Compact structure, no increase of axial distance and short motor length.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the utility model and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the utility model and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.

Claims (3)

1. The utility model provides an integrative motor structure of integral two motors and flywheel shell and motor casing, includes first bolt (3), motor casing (4), resolver (5), second bolt (6), first stator subassembly (7), first rotor subassembly (8), third bolt (9), second stator subassembly (10), second rotor subassembly (11), fourth bolt (12) and rear end cap (13), the first rotor subassembly (8) of outer wall activity suit of first stator subassembly (7), the outer wall activity suit second rotor subassembly (11) of second stator subassembly (10), rear end cap (13) through fourth bolt (12) with motor casing (4) rear end is connected, first rotor subassembly (8) are connected its characterized in that through second bolt (6) and engine crankshaft (2): motor casing (4) and engine flywheel shell are integrated integrative, motor casing (4) are connected through first bolt (3) and engine body (1), motor casing (4) inside is provided with water course (401), water course (401) structure is the loop configuration more than 2, resolver (5) set up first rotor subassembly (8) with position between engine body (1), first stator subassembly (7) set up the axial direction front end of second stator subassembly (10), first rotor subassembly (8) set up the axial direction front end of second rotor subassembly (11), first rotor subassembly (8) with second stator subassembly (10) are connected through third bolt (9).

2. The integrated motor structure with two motors and the flywheel housing and the motor housing integrated as one body as claimed in claim 1, wherein: the water channel (401) and the motor shell (4) are integrally cast and formed.

3. The integrated motor structure with two motors and the flywheel housing and the motor housing integrated as one body as claimed in claim 1 or 2, wherein: the rotary transformer (5) comprises: the rotary transformer comprises a rotary transformer stator (501) and a rotary transformer rotor (502), wherein the rotary transformer rotor (502) is connected with the motor shell (4), and the rotary transformer rotor (502) is connected with an engine crankshaft (2).

Images