CN214324864U

CN214324864U - Power assembly module and electric automobile with same

Info

Publication number: CN214324864U
Application number: CN202022856090.8U
Authority: CN
Inventors: 邹雨; 王金桥; 胡宏喜; 王经常
Original assignee: Chery New Energy Automobile Co Ltd
Current assignee: Chery New Energy Automobile Co Ltd
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2021-10-01
Anticipated expiration: 2030-12-01

Abstract

The utility model discloses a power assembly module and have its electric automobile, the power assembly module includes: a support frame; the driving motor is rigidly connected to the supporting frame; the two-gear speed reducer is connected with the driving motor and is rigidly connected to the supporting frame; a first flexible connector disposed on the support frame to flexibly connect the support frame with an external structure; and the second flexible connecting piece is arranged on the driving motor and/or the two-gear speed reducer. The utility model discloses can reach best space utilization in the space in reasonable make full use of electric automobile power assembly cabin, be applicable to different motorcycle types, realize the universalization, simultaneously, make whole power assembly module obtain better vibration isolation performance, two grades of reducers that the power assembly module carried on have improved the performance of whole car.

Description

Power assembly module and electric automobile with same

Technical Field

The utility model relates to an electric automobile driving system technical field, in particular to electric automobile and power assembly module thereof.

Background

With the continuous development of the new energy automobile industry, the research on pure electric vehicles is deepened continuously, wherein the improvement of the performance of the whole electric vehicle becomes a main subject of research of most enterprises and institutions of colleges and universities. Because the working characteristics of the driving motor and the engine are different, most of the prior electric automobiles adopt a fixed gear ratio reducer to transmit power to wheels. In the aspect of dynamic property, the performances of starting acceleration, high-speed endurance and climbing are difficult to simultaneously consider due to the design of a single speed ratio; in the aspect of economy, the high-efficiency working range of the motor is limited; in the aspect of safety, when the vehicle overtakes at high speed, the driving acceleration cannot be effectively improved, and the running safety is poor. Therefore, few companies have started to research two-gear and multi-gear reducers and invest in practical development. However, because of the addition of internal structures such as gear sets, the multi-gear speed reducer is structurally more complex than a single-stage speed reducer, and the universal design is more difficult to achieve on the arrangement of power assemblies of different vehicle types.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model discloses a purpose of the utility model is to a power assembly module, this power assembly module can not only make full use of space, are convenient for realize the universalization, and simultaneously, are convenient for obtain better vibration isolation performance.

Another object of the present invention is to provide an electric vehicle having the above power assembly module.

In order to achieve the above object, the utility model provides a power assembly module, include: a support frame; the driving motor is rigidly connected to the supporting frame; the two-gear speed reducer is connected with the driving motor and is rigidly connected to the supporting frame; a first flexible connector disposed on the support frame to flexibly connect the support frame with an external structure; and the second flexible connecting piece is arranged on the driving motor and/or the two-gear speed reducer and is flexibly connected with an external structure.

The utility model discloses power assembly module through the rigidity zonulae occludens between braced frame, driving motor, the two shelves of reduction gears, not only guarantees to connect the reliability between the three, makes the three form a module whole moreover, can reduce whole occupation space like this, and reasonable, make full use of electric automobile's cabin space reaches better space utilization. Through setting up first flexible connectors, second flexible connectors, this module of power assembly module is whole to be confirmed to external hookup location, is convenient for carry out the universalization design with the power assembly module to be suitable for different motorcycle types, can also obtain better vibration isolation performance. The arrangement of the two-gear speed reducer increases the speed reduction adjustment range, and is beneficial to being suitable for more working condition environments.

Preferably, the two-speed reducer is rigidly connected to the driving motor by a plurality of first bolts.

Preferably, the drive motor and the two-speed reducer are each rigidly connected to the support frame at one end remote from each other.

Preferably, a first mounting bracket is arranged on the driving motor, and the first mounting bracket is rigidly connected to the supporting frame through a plurality of second bolts.

Preferably, a second mounting bracket is arranged on the two-gear speed reducer and is rigidly connected to the supporting frame through a plurality of third bolts.

Preferably, the driving motor and the two-gear speed reducer are both located below the supporting frame, and the second flexible connecting piece is located at the bottom of the driving motor or the two-gear speed reducer.

Optionally, the second flexible connecting piece is located at the connection position of the driving motor and the two-gear speed reducer.

Preferably, the first flexible connecting pieces are multiple, and at least two first flexible connecting pieces are located on the sides, far away from each other, of the driving motor and the two-gear speed reducer.

Specifically, the two ends of the supporting frame are respectively connected with an extending frame through fourth bolts, and the extending frames at the two ends are respectively provided with the first flexible connecting piece.

The utility model provides an electric automobile, electric automobile includes above-mentioned embodiment the power assembly module.

The utility model discloses electric automobile through the power assembly module that sets up above-mentioned embodiment, constitutes a reliable module whole with braced frame, driving motor, two grades of reduction gears, and cabin space that like this can be reasonable, make full use of electric automobile reaches better space utilization. Through setting up first flexible connectors, second flexible connectors, this module of power assembly module is whole to be confirmed to external hookup location, is convenient for carry out the universalization design with the power assembly module to be suitable for different motorcycle types, can also obtain better vibration isolation performance. The two-gear speed reducer carried by the power assembly module improves the performance of the whole vehicle.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a front view of the overall structure of a powertrain module in accordance with an embodiment of the present invention;

FIG. 2 is a top view of the powertrain module shown in FIG. 1.

Reference numerals:

a power assembly module 100,

The device comprises a driving motor 1, a two-gear speed reducer 2, a supporting frame 3, a first flexible connecting piece 4, a second flexible connecting piece 5, a first mounting bracket 6, a second mounting bracket 7, a first bolt 8, a second bolt 9, a third bolt 10, an extension frame 11 and a fourth bolt 12.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "lateral", "up", "down", "front", "back", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, 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.

The structure of the powertrain module 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 2.

Referring to fig. 1, fig. 1 is a rear view of a powertrain module 100 according to an embodiment of the present invention. The powertrain module 100 includes: the device comprises a supporting frame 3, a driving motor 1, a two-gear speed reducer 2, a first flexible connecting piece 4 and a second flexible connecting piece 5.

The driving motor 1 is rigidly connected to the supporting frame 3, the two-gear speed reducer 2 is connected to the driving motor 1, and the two-gear speed reducer 2 is rigidly connected to the supporting frame 3. A first flexible connector 4 is provided on the support frame 3 to flexibly connect the support frame 3 with an external structure. The second flexible connecting piece 5 is arranged on the driving motor 1 and/or the two-gear speed reducer 2 so as to be flexibly connected with an external structure. That is, the second flexible connecting element 5 may be disposed on the driving motor 1, the second flexible connecting element 5 may be disposed on the two-gear speed reducer 2, or the second flexible connecting element 5 may be disposed on both the driving motor 1 and the two-gear speed reducer 2.

The utility model discloses power assembly module 100, setting up of two grades of reduction gears 2 has increased speed reduction adjustment scope, is favorable to being suitable for more operating mode environment. For example, when starting to accelerate, continue at a high speed, and climb a slope, the two-gear speed reducer 2 can adjust the output speed of the powertrain module 100 to a speed range required by the respective working conditions. And the high-efficient workspace of the two-gear speed reducer 2 is wider, and the economy is stronger. In the aspect of safety, the two-gear speed reducer 2 can effectively improve the driving acceleration, and the running is safer.

When the driving motor 1 and the two-gear speed reducer 2 are connected, the two speed reducer is rigidly connected to the supporting frame 3, so that the reliability of connection among the three is guaranteed, and the three forms a module whole, so that the whole occupied space can be reduced, the cabin space of the electric automobile is reasonably and fully utilized, and the better space utilization rate is achieved.

By arranging the first flexible connecting piece 4 and the second flexible connecting piece 5, the powertrain module 100 is suspended and fixed at the supporting frame 3 and is flexibly supported at the driving motor 1 and/or the two-gear speed reducer 2. Therefore, the overall external connection position of the module of the power assembly module 100 is determined, and the power assembly module 100 is conveniently designed in a universal mode, so that the vibration isolation device is suitable for different vehicle types and can obtain better vibration isolation performance.

It should be noted that, in the present application, the driving motor 1 and the two-gear speed reducer 2 may adopt a conventional known structure, and the internal structure and the operation principle thereof are not described herein again.

In some embodiments, as shown in fig. 1, the two-speed reducer 2 is rigidly connected to the driving motor 1 through a plurality of first bolts 8, so as to ensure that the two-speed reducer 2 is firmly and stably connected to the driving motor 1, and the two-speed reducer 2 has better dynamic property, economy and safety compared with the fixed gear ratio reducer adopted by most of the current electric vehicles, so as to improve the performance of the whole vehicle. And through the first bolt 8 connection, can also be convenient for dismantle when maintaining.

In other embodiments, the two-speed reducer 2 may even share a housing with the drive motor 1, i.e. the two-speed reducer 2 and the drive motor 1 are of an integrated housing design.

In some embodiments, as shown in fig. 1, the drive motor 1 and the two-speed reducer 2 are each rigidly connected to the support frame 3 at one end remote from each other. The driving motor 1 and the two-gear speed reducer 2 are fixedly connected, and the driving motor and the two are rigidly connected with the supporting frame 3 at positions far away from each other, so that the connection point is favorably enlarged, the integral rigidity is more reliable, and the fracture caused by over-weak local connection is avoided.

Specifically, a first mounting bracket 6 is arranged at one end of the driving motor 1, which is far away from the two-gear speed reducer 2, and the first mounting bracket 6 is rigidly connected to the bottom of the supporting frame 3 through a plurality of second bolts 9; one end of the two-gear speed reducer 2, which is far away from the driving motor 1, is provided with a second mounting bracket 7, and the second mounting bracket 7 is rigidly connected to the bottom of the supporting frame 3 through a plurality of third bolts 10. As shown in fig. 1 and 2, the supporting frame 3, the driving motor 1 and the two-gear speed reducer 2 are compact in arrangement and reasonable in layout, limited space is effectively utilized, the structures are connected through the bolt structures, and compared with welding fixed connection, the bolt structure connection guarantees connection stability, is not prone to cracking and easy to process, and is also beneficial to later-stage maintenance.

As shown in fig. 2, the driving motor 1 and the two-gear speed reducer 2 are installed at the bottom of the supporting frame 3, an installation hole is reserved on the upper portion of the supporting frame 3, and accessories such as high-voltage and low-voltage electrical appliance modules or chassis are assembled according to different arrangement requirements, so that the optimal space utilization rate is achieved.

Specifically, the second flexible connecting member 5 is located at the bottom of the driving motor 1 or the two-gear speed reducer 2, so that the top of the powertrain module 100 is suspended by the first flexible connecting member 4, and the bottom of the powertrain module 100 is supported by the second flexible connecting member 5, and can be supported when floating up and down.

Optionally, the second flexible connecting member 5 is located at a joint of the driving motor 1 and the two-gear speed reducer 2, and the second flexible connecting member 5 is connected with both the driving motor 1 and the two-gear speed reducer 2, so that the structure of the joint of the driving motor 1 and the two-gear speed reducer 2 is strengthened.

As shown in fig. 2, a plurality of first flexible connectors 4 are mounted on the upper portion of the supporting frame 3, the first flexible connectors 4 are located on the sides, far away from each other, of the driving motor 1 and the two-gear speed reducer 2, and second flexible connectors 5 are arranged on the driving motor 1 and/or the two-gear speed reducer 2. Thus, the powertrain module 100 forms at least a three-point connection when connected to an external structure.

In the example of fig. 2, two ends of the supporting frame 3 are respectively provided with a first flexible connecting piece 4, the bottom of the joint of the driving motor 1 and the two-gear speed reducer 2 is provided with a second flexible connecting piece 5, and three-point connection is formed between the two flexible connecting pieces and the outside, so that the connection is very reliable.

Further, as shown in fig. 2, two ends of the supporting frame 3 are respectively connected with an extending frame 11 through a fourth bolt 12, and the extending frames 11 at the two ends are respectively provided with a first flexible connecting piece 4. The setting of extending frame 11 is favorable to setting up the strong point of first flexible connectors 4 in driving motor 1, two grades of reduction gear 2's both sides, and the strong point is apart from the dispersion, and the vibration that can first flexible connectors 4 when receiving the impact is passed to braced frame 3 after weakening again, is favorable to reducing driving motor 1, two grades of reduction gear 2 and receives the vibration impact.

Optionally, the first flexible connecting element 4 and the second flexible connecting element 5 are suspension cushions, and the powertrain module 100 is flexibly connected to the vehicle body or the vehicle frame rigidly connected to the vehicle body through the first flexible connecting element 4 and the second flexible connecting element 5, and the suspension cushions can effectively isolate vibration, and preferably, the first flexible connecting element 4 and the second flexible connecting element 5 form a triangle with each other, so that the overall structure is more stable.

According to the utility model discloses electric automobile, include according to the utility model discloses above-mentioned embodiment power assembly module 100.

According to the utility model discloses electric automobile is equipped with power assembly module 100 in the electric automobile engine cabin, and power assembly module 100 has improved electric automobile's dynamic property, economic nature, security through two shelves of reduction gears 2, and power assembly module 100 reasonable in design reaches best space utilization, is applicable to different motorcycle types, realizes the universalization, has extended the space of the update upgrading in electric automobile later stage.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A powertrain module, comprising:

a support frame;

the driving motor is rigidly connected to the supporting frame;

the two-gear speed reducer is connected with the driving motor and is rigidly connected to the supporting frame;

a first flexible connector disposed on the support frame to flexibly connect the support frame with an external structure;

and the second flexible connecting piece is arranged on the driving motor and/or the two-gear speed reducer and is flexibly connected with an external structure.

2. The powertrain module of claim 1, wherein the two-speed reducer is rigidly coupled to the drive motor by a first plurality of bolts.

3. The powertrain module of claim 1, wherein the drive motor and the two-speed reducer are each rigidly connected to the support frame at ends remote from each other.

4. The powertrain module of claim 1, wherein the drive motor is provided with a first mounting bracket rigidly coupled to the support frame by a plurality of second bolts.

5. The powertrain module of claim 1, wherein the two-speed reducer has a second mounting bracket thereon, the second mounting bracket rigidly connected to the support frame by a plurality of third bolts.

6. The powertrain module of claim 1, wherein the drive motor and the two-speed reducer are both located below the support frame, and the second flexible connection is located at a bottom of the drive motor or the two-speed reducer.

7. The powertrain module of claim 6, wherein the second flexible coupling is located at a connection of the drive motor and the two-speed reducer.

8. The powertrain module of claim 1, wherein the first flexible connecting members are a plurality of flexible connecting members, and at least two of the flexible connecting members are located on the sides of the drive motor and the two-speed reducer away from each other.

9. The powertrain module of claim 8, wherein the support frame is connected at two ends thereof with extension frames through fourth bolts, and the extension frames at two ends are provided with the first flexible connecting member.

10. An electric vehicle, characterized in that it comprises a powertrain module according to any one of claims 1-9.