CN102745052B - Automobile and the fixing device of power assembly thereof - Google Patents

Abstract

The invention discloses a fixing device for a power assembly, which comprises a well-shaped support, the well-shaped support includes a front crossbeam and a rear crossbeam arranged side by side, a left longitudinal beam and a right longitudinal beam which cross the front crossbeam and the rear crossbeam and are arranged side by side Longitudinal beam; the first fixed bracket used to be connected to the outer end surface of the transmission and the second fixed bracket used to be connected to the outer end surface of the drive motor suspended under the well-shaped bracket, and also includes a suspension used for hanging on the front beam. The front suspension bracket connected to the side end surface of the driving motor and the rear suspension bracket suspended on the rear cross beam for connection with the side end surface of the transmission. The structural design of the fixing device can effectively solve the problems of large distance between components in the power assembly, large amount of wires, long transmission distance of the transmission shaft between the drive motor and the transmission, and low transmission efficiency. The invention also discloses an automobile provided with the fixing device of the power assembly.

Description

Fixtures for automobiles and their powertrains

technical field

The invention relates to the technical field of vehicle manufacturing, in particular to a power assembly fixing device, and also relates to an automobile with the above device.

Background technique

In recent years, with the increasingly serious problems of energy crisis and environmental pollution worldwide, people's requirements for energy saving and emission reduction of automobiles have gradually increased. New energy vehicles have attracted more and more attention due to their characteristics of low noise, no pollution, diversified energy sources and high energy efficiency, thus promoting the accelerated development of new energy vehicles.

In the structural design of new energy vehicles, the powertrain includes motor controllers, drive motors, transmissions and DC converter chargers, etc. In the prior art, the powertrain fixtures are generally based on the chassis platform of traditional gasoline vehicles It is improved, and the motor controller, drive motor, transmission and DC converter charger are generally arranged in a single layer, which takes up a lot of space, and the structural layout is not compact enough, so that the motor controller, drive motor, transmission and DC The distance between the converter and charger assemblies is large, the amount of wires used is large, and the transmission distance of the drive shaft between the drive motor and the transmission is long, which affects the transmission efficiency.

In summary, how to provide a fixing device for the powertrain, so that it can effectively solve the problem of the large distance between the components in the powertrain, the large amount of wires used and the drive shaft between the drive motor and the transmission. The transmission distance is long, the transmission efficiency is low, etc., which are currently urgent problems for those skilled in the art.

Contents of the invention

In view of this, the first object of the present invention is to provide a power assembly fixing device, the structural design of the power assembly fixing device can effectively solve the problem that the distance between the components in the power assembly is relatively large, and the wires A second object of the present invention is to provide an automobile comprising the above-mentioned powertrain fixing device.

In order to achieve the first purpose above, the present invention provides a powertrain fixing device, comprising:

A well-shaped support, the well-shaped support includes a front crossbeam and a rear crossbeam arranged side by side, a left longitudinal beam and a right longitudinal beam that cross the front crossbeam and the rear crossbeam and are arranged side by side;

The first fixed bracket used to be connected to the outer end surface of the transmission of the powertrain and the second fixed bracket used to be connected to the outer end surface of the drive motor of the powertrain suspended under the well-shaped bracket also include hanging on the A front suspension bracket on the front crossbeam for connecting with the side end surface of the driving motor and a rear suspension bracket suspended on the rear crossbeam for connecting with the side end surface of the transmission;

It also includes a middle cross beam arranged between the front cross beam and the rear cross beam, and the two ends of the middle cross beam are connected with the left longitudinal beam and the right longitudinal beam through a suspension cushion; the first fixing bracket and the second fixing bracket The brackets are all arranged on the middle beam.

Preferably, in the fixing device of the above-mentioned power assembly, both the first fixing bracket and the second fixing bracket are connected to the middle beam by welding.

Preferably, in the above-mentioned fixing device of the powertrain, the axis of the intermediate beam is located directly above and parallel to the torque output shaft of the driving motor of the powertrain.

Preferably, in the fixing device of the above-mentioned power assembly, the middle of the front beam and the rear beam is provided with a suspension cushion for connecting with the vehicle body.

Preferably, in the fixing device of the above-mentioned powertrain, both the front suspension bracket and the rear suspension bracket are connected to the front cross member and the rear cross member through suspension cushions.

Preferably, the above-mentioned fixing device for the power assembly further includes a middle longitudinal beam arranged between the left side beam, the right side beam, the front cross beam and the rear cross beam.

Preferably, in the fixing device of the above-mentioned powertrain, the left side member, the right side member, the front cross member, the rear cross member and the middle longitudinal member are of an integrated structure.

An automobile, comprising the powertrain fixing device described in any one of the above.

The fixing device of the power assembly provided by the present invention includes a well-shaped bracket, wherein the well-shaped bracket includes a front crossbeam and a rear crossbeam arranged side by side, a left longitudinal beam and a right longitudinal beam that cross the front crossbeam and the rear crossbeam and are arranged side by side; The first fixed bracket used to connect with the outer end surface of the transmission of the powertrain and the second fixed bracket used to be connected with the outer end surface of the drive motor of the powertrain under the well-shaped bracket also include hanging on the front cross member The front suspension bracket used for connecting with the side end surface of the driving motor and the rear suspension bracket suspended on the rear cross member for connecting with the side end surface of the transmission.

When using the fixing device of the above-mentioned powertrain, the motor controller, the DC converter charger assembly and the brake vacuum pump can be arranged on the top of the well-shaped support, and then through the first fixed support below the well-shaped support and the connection of the drive motor The outer end surface is connected, and at the same time, the front suspension bracket suspended on the front beam is connected to the side end surface of the drive motor, so that the drive motor is fixed under the well-shaped bracket, and the transmission is connected to the second fixed bracket under the well-shaped bracket. At the same time, the rear suspension bracket suspended on the rear beam is connected to the side end surface of the transmission, so that the transmission is fixed under the well-shaped bracket. Compared with the prior art, a double-layer arrangement is adopted, the motor controller, the DC converter charger assembly and the brake vacuum pump are arranged above the well-shaped support, and the drive motor and transmission are arranged below the well-shaped support, so that The layout of multiple components of the powertrain is more compact, reducing the amount of wires, and the transmission distance of the drive shaft between the drive motor and the transmission is shorter, which improves the transmission efficiency.

In order to achieve the above-mentioned second object, the present invention also provides an automobile, which includes any one of the above-mentioned powertrain fixing devices. Since the above-mentioned fixing device of the power assembly has the above-mentioned technical effect, the automobile having the fixing device of the power assembly should also have the corresponding technical effect.

To sum up, the fixing device of the power assembly provided by the present invention can effectively solve the problem that the distance between the components in the power assembly is large, the amount of electric wires is large and the transmission distance of the drive shaft between the drive motor and the transmission Longer, lower transmission efficiency and other issues.

Description of drawings

In order to illustrate the technical solutions in the present invention more clearly, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following descriptions are only some embodiments of the present invention, and are common to those skilled in the art. As far as the skilled person is concerned, other drawings can also be obtained based on these drawings on the premise of not paying creative work.

FIG. 1 is a schematic structural view of a fixing device for a power assembly provided in an embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a fixing device for a power assembly provided in an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of the power assembly and its fixing device provided in the embodiment of the present invention;

Fig. 4 is a side view of the fixing device of the power assembly provided in the embodiment of the present invention.

The markings in the attached drawings are as follows:

1-Rear beam, 2-Front beam, 3-Left longitudinal beam, 4-Middle longitudinal beam, 5-Middle beam, 6-Right longitudinal beam, 11-Rear suspension bracket, 21-Front suspension bracket, 51-No. One fixed bracket, 52-second fixed bracket, 01-motor controller, 02-DC converter charger assembly, 03-brake vacuum pump, 04-drive motor, 05-transmission.

detailed description

In order to further understand the present invention, preferred embodiments of the present invention are described below in conjunction with examples, but it should be understood that these descriptions are only to further illustrate the features and advantages of the present invention, rather than limit the claims of the present invention.

The first object of the present invention is to provide a power assembly fixing device, the structural design of the power assembly fixing device can effectively solve the problem that the distance between the components in the power assembly is relatively large, and the consumption of electric wires is relatively large. In view of the problems of long drive shaft transmission distance and low transmission efficiency between the drive motor and the transmission, the second object of the present invention is to provide an automobile comprising the above powertrain fixing device.

The schemes in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figures 1-4, Figure 1 is a schematic structural view of the power assembly fixing device provided in the embodiment of the present invention; Figure 2 is a structural schematic view of the power assembly fixing device provided in the embodiment of the present invention; Figure 3 is A schematic structural view of the power assembly and its fixing device provided in the embodiment of the present invention; FIG. 4 is a side view of the fixing device of the power assembly provided in the embodiment of the present invention.

As shown in Figures 1-2, the fixing device of the power assembly provided in the embodiment of the present invention includes a well-shaped bracket, wherein the well-shaped bracket includes a front crossbeam 2 and a rear crossbeam 1 arranged side by side, and a front crossbeam 2 and a rear crossbeam 1 The left longitudinal beam 3 and the right longitudinal beam 6 that are all intersected and arranged side by side; the first fixed bracket 51 that is used to connect with the outer end surface of the transmission 05 of the powertrain and is used to connect with the powertrain The second fixed bracket 52 connected to the outer end face of the drive motor 04 also includes a front suspension bracket 21 suspended on the front cross beam 2 for connecting with the side end face of the drive motor 04 and a suspension bracket 21 suspended on the rear cross beam 1 for connecting with the side end face of the drive motor 04. The rear suspension bracket 11 that the side end face of the transmission 05 is connected to.

When using the fixing device of the above-mentioned powertrain, the motor controller 01, the DC converter charger assembly 02 and the brake vacuum pump 03 can be arranged above the well-shaped bracket, and then pass through the first fixing bracket 51 below the well-shaped bracket It is connected with the outer end surface of the driving motor 04, and at the same time, it is connected with the side end surface of the driving motor 04 by using the front suspension bracket 21 suspended on the front beam 2, so that the driving motor 04 is fixed under the well-shaped bracket, and the well-shaped The second fixing bracket 52 below the bracket is connected to the outer end surface of the transmission 05, and at the same time, the rear suspension bracket 11 suspended on the rear beam 1 is connected to the side end surface of the transmission 05, so that the transmission 05 is fixed below the well-shaped bracket . Compared with the existing technology, a double-layer arrangement is adopted, and the motor controller 01, the DC converter charger assembly 02 and the brake vacuum pump 03 are arranged above the well-shaped support, and the driving motor 04 and the transmission 05 are arranged on the well-shaped support. The lower part of the bracket makes the layout of multiple components of the powertrain more compact, reduces the amount of wires, and the transmission distance of the transmission shaft between the drive motor 04 and the transmission 05 is relatively short, which improves the transmission efficiency.

As shown in Figure 3, in order to further reduce the consumption of electric wires, the driving motor 04 can be arranged under the motor controller 01, the driving motor 04 is connected to the transmission 05 through a spline, and the output ends of the transmission 05 are respectively connected to the car through splines. The left and right driving half shafts of the left and right driving shafts further transmit the power to the left and right wheels. In addition, the flange of the outer end surface of the first fixed bracket 51 and the drive motor 04 is connected by bolts, the flange of the second fixed bracket 52 and the outer end surface of the transmission 05 is connected by bolts, and the rear suspension bracket 11 and the side end surface of the transmission 05 are connected by bolts. Between the front suspension bracket 21 and the side end surface of the drive motor 04, all are connected by bolts.

In addition, in the process of starting or braking the vehicle, the front suspension bracket 21 and the rear suspension bracket 11 can effectively limit the powertrain. Since the vehicle is in the process of starting or braking, the powertrain will roll backwards or forwards around the torque axis due to inertia, and at this time, the front suspension bracket 21 and the rear suspension bracket 11 play a role in resisting torsion by pushing or pulling , to limit the forward and backward turning motion of the powertrain due to inertia. And when the car collides violently, it is necessary to avoid violent collision between the powertrain and the battery of the car as much as possible, so as to avoid explosion. The adoption of the front suspension bracket 21 and the rear suspension bracket 11 can effectively limit the displacement of the powertrain during the collision of the automobile, and avoid violent collision with the battery.

Preferably, in the above technical solution, an intermediate beam 5 can be arranged between the front beam 2 and the rear beam 1, and the two ends of the intermediate beam 5 are respectively connected to the left longitudinal beam 3 and the right longitudinal beam 6 through suspension cushions. The suspension cushion has the function of cushioning and shock absorption. In order to facilitate the suspension of the first fixed bracket 51 and the second fixed bracket 52, the first fixed bracket 51 and the second fixed bracket 52 can be hung on the middle beam 5, and certainly can also be hung on the front beam 2 and the rear beam 1. It is not limited here. In addition, in order to strengthen the strength of the first fixing bracket 51 and the second fixing bracket 52, both the first fixing bracket 51 and the second fixing bracket 52 can be connected to the middle beam 5 by welding, or they can also be connected by bolts. Connections are not limited here.

In the fixing device of the above-mentioned powertrain, in order to prevent the driving motor 04 from rolling during the running of the car, the relative position of the middle beam 5 and the driving motor 04 can be adjusted so that the axis of the middle beam 5 is positioned at the center of the drive motor of the powertrain. 04 directly above the torque output shaft, and both are parallel to each other.

Wherein, in order to facilitate the connection of the fixing device of the powertrain to the vehicle body, a suspension cushion can also be provided in the middle of the front beam 2 and the rear beam 1, so as to be fixed to the vehicle body through the suspension cushion. Of course, the suspension cushions can also be arranged on the left side beam 3 and the right side beam 6, which is not limited here.

Wherein, the front suspension bracket 21 and the rear suspension bracket 11 can both be connected with the front cross beam 2 and the rear cross beam 1 through suspension cushions. Suspension cushions are more common in the market, and have the function of cushioning and vibration reduction. Of course, other connecting elements with a buffering effect, such as rubber rings, can also be used.

In order to make the well-shaped support more firm, the middle longitudinal beam 4 can also be set between the left longitudinal beam 3, the right longitudinal beam 6, the front cross beam 2 and the rear cross beam 1, that is, the middle longitudinal beam is arranged in the gap in the middle of the well-shaped support 4. Wherein, in order to facilitate processing, the left longitudinal beam 3, the right longitudinal beam 6, the front cross beam 2, the rear cross beam 1 and the middle longitudinal beam 4 can be set as an integrated structure. Of course, the left longitudinal beam 3 , the right longitudinal beam 6 , the front beam 2 , the rear beam 1 and the middle longitudinal beam 4 can also be fixedly connected by welding, which is not limited here.

Based on the powertrain fixing device provided in the above embodiments, the present invention also provides an automobile, which includes any one of the above powertrain fixing devices. Since the automobile adopts the fixing device of the power assembly in the above-mentioned embodiment, please refer to the above-mentioned embodiment for the beneficial effect of the automobile.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

Based on the above description of the disclosed embodiments, a person skilled in the art can make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. A fixing device for a power assembly, characterized in that it comprises: A well-shaped support, the well-shaped support includes a front beam (2) and a rear beam (1) arranged side by side, and a left longitudinal beam (3) that crosses the front beam (2) and the rear beam (1) and is arranged side by side ) and the right side member (6); The first fixing bracket (51) used to be connected to the outer end surface of the transmission and the second fixing bracket (52) used to be connected to the outer end surface of the drive motor suspended below the well-shaped bracket also include hanging on the The front suspension bracket (21) on the front beam (2) is used to connect with the side end surface of the drive motor, and the rear suspension bracket (21) suspended on the rear beam (1) is used to connect to the side end surface of the transmission. Suspension bracket (11); It also includes an intermediate beam (5) arranged between the front beam (2) and the rear beam (1), and the two ends of the intermediate beam (5) are connected to the left longitudinal beam (3) and the left longitudinal beam (3) and The right longitudinal beam (6) is connected; the first fixing bracket (51) and the second fixing bracket (52) are both arranged on the middle beam (5). 2. The fixing device of the power assembly according to claim 1, characterized in that, the first fixing bracket (51) and the second fixing bracket (52) are welded to the middle beam (5) connect. 3. The fixing device of the power assembly according to claim 1, characterized in that, the axis of the intermediate beam (5) is located directly above the torque output shaft of the driving motor and is parallel to it. 4. The power assembly fixing device according to claim 1, characterized in that, the middle of the front beam (2) and the rear beam (1) is provided with a suspension cushion for connecting with the vehicle body. 5. The fixing device of the power assembly according to claim 1, characterized in that, the front suspension bracket (21) and the rear suspension bracket (11) are connected to the front cross member (2) through suspension cushions. ) and the rear beam (1) are connected. 6. The fixing device of power assembly according to claim 1, characterized in that, it also includes a set on the left longitudinal beam (3), the right longitudinal beam (6), the front beam (2) and the rear beam (1). ) between the longitudinal beams (4). 7. The power assembly fixing device according to claim 6, characterized in that, the left longitudinal beam (3), the right longitudinal beam (6), the front cross beam (2), the rear cross beam (1) and the middle longitudinal beam The beam (4) is an integral structure. 8. An automobile, characterized in that it comprises the powertrain fixing device according to any one of claims 1-7.