CN221049449U - Mounting brackets for electric vehicle compressors and motors - Google Patents

Abstract

The utility model discloses a mounting bracket for a compressor and a motor of an electric automobile, which comprises a bracket base, wherein the upper end surface of the bracket base is provided with a compressor mounting part and a motor mounting part, the compressor mounting part comprises a first mounting part and a second mounting part which are oppositely arranged, a compressor mounting bracket for mounting the compressor is arranged between the first mounting part and the second mounting part, the motor mounting part comprises a third mounting part which is positioned between the first mounting part and the second mounting part and is perpendicular to the first mounting part, and the third mounting part is provided with a motor mounting bracket for suspending and mounting the motor towards the outer side of the bracket base; according to the mounting bracket for the electric automobile compressor and the motor, the compressor and the motor are integrally mounted on the same bracket, so that the number of parts is reduced, the overall arrangement and the appearance of cabin parts are facilitated, the development cost can be reduced to a certain extent, the whole automobile cost is reduced, and the product competitiveness is improved.

Description

Mounting brackets for electric vehicle compressors and motors

Technical Field

The utility model relates to the field of automobile parts, in particular to a mounting bracket for a compressor and a motor of an electric vehicle.

Background technique

As electric vehicles continue to improve their comfort and interior space, their wheelbases continue to lengthen. In addition, the design of storage spaces such as the front trunk of electric vehicles has led to the continuous compression of the space for the arrangement of components in the front cabin. Therefore, compact integrated suspension brackets and compressor bracket structures have emerged.

The traditional front motor suspension bracket has a relatively simple function, mainly connecting the front electric drive system and the whole vehicle, fixing the front electric drive system on the front subframe, and the air conditioning compressor is usually arranged in a location with high structural rigidity such as the front cabin longitudinal beam, powertrain housing or subframe in a vibration isolation manner of bushing + bracket due to its high speed and large excitation. Looking at the motor suspension bracket and compressor bracket in the existing technology, either the suspension and compressor bracket are integrated on the active side bracket of the powertrain, or there are many integrated parts, which makes the layout and disassembly and maintenance inconvenient. There is no case of integrating the motor suspension bracket and compressor bracket on the vehicle body side.

In order to solve the above problems, it is necessary to improve the existing motor suspension bracket and compressor bracket to solve the problem of difficulty in arranging the front motor suspension bracket and the compressor mounting bracket on the vehicle body.

Utility Model Content

In view of this, the utility model provides a mounting bracket for an electric vehicle compressor and a motor, which integrates the motor mounting bracket and the compressor mounting bracket into one and mounts them on the front sub-frame to solve the problem of difficulty in arranging the front motor mounting bracket and the compressor mounting bracket on the vehicle body; at the same time, the utility model fully considers factors such as development cost, lightweight and limited layout space in the cabin, so that the number of parts is small, the development cycle is short, the cost is reduced, the structure is simple, and the disassembly and maintenance are convenient.

The utility model provides a mounting bracket for an electric vehicle compressor and a motor, comprising a bracket base, wherein the upper end surface of the bracket base is provided with a compressor mounting portion and a motor mounting portion, wherein the compressor mounting portion comprises a first mounting portion and a second mounting portion which are arranged opposite to each other, wherein a compressor mounting bracket for mounting the compressor is arranged between the first mounting portion and the second mounting portion, wherein the motor mounting portion comprises a third mounting portion which is located between the first mounting portion and the second mounting portion and is arranged perpendicular to the first mounting portion, wherein the third mounting portion is provided with a motor mounting bracket for suspending and mounting the motor on the outer side of the bracket base.

Furthermore, the first mounting portion is provided with a bushing I at the connection with the compressor mounting frame, and the second mounting portion is provided with a bushing II and a bushing III at the connection with the compressor mounting frame. The bushings I, II and III are distributed in a triangular shape and their elastic centers are located at the same height.

Furthermore, the mass center of the installed compressor and the elastic center of bushing I are located at the same height, and bushing II and bushing III are symmetrically arranged on both sides of the connection line between the elastic center of bushing I and the mass center of the installed compressor.

Furthermore, the bushings I, II and III are provided with protrusions on the end surfaces facing the compressor.

Furthermore, a compressor mounting point is provided on the compressor mounting bracket, and the compressor is connected and fixed at the compressor mounting point of the compressor mounting bracket by means of bolts.

Furthermore, the motor mounting bracket is provided with a motor suspension first-level vibration isolation bushing at the connection with the third mounting portion, and the motor mounting bracket is provided with a motor suspension second-level vibration isolation bushing at the mounting point with the motor.

Furthermore, the bracket base is provided with mounting holes on the upper end surface and the side surface for connecting with the front sub-frame.

Furthermore, compressor mounting point reinforcement ribs are provided between the support base and the first mounting portion and the second mounting portion, and motor suspension mounting point reinforcement ribs are provided between the support base and the third mounting portion.

Furthermore, the bracket base, the compressor mounting bracket and the motor mounting bracket are all provided with weight-reducing holes and reinforcing ribs.

Furthermore, the bracket base, the compressor mounting bracket and the motor mounting bracket are all made by integral molding.

The beneficial effects of the utility model are:

(1) The utility model designs the compressor mounting bracket and the front motor suspension mounting bracket as an integrated structure, which reduces the number of parts, is beneficial to the overall layout and aesthetics of the cabin parts, and can reduce development costs and vehicle costs to a certain extent, thereby improving product competitiveness;

(2) The mounting bracket of the utility model is more compact in layout, saving layout space, which is conducive to shortening assembly time and improving vehicle production efficiency;

(3) The main part of the mounting bracket structure in the utility model is formed by integrated aluminum alloy die-casting, which can reasonably avoid surrounding parts and design various mounting points, taking into account both performance and layout requirements;

(4) The compressor mounting bracket in the utility model is connected to the compressor by two bolts, which has a simple structure and is easy to disassemble and assemble, so as to facilitate the later maintenance of the compressor; and the connecting end of the compressor mounting bracket and the bracket base is connected by three bushings with a limiting function, which can make full use of the deformation of the rubber bushing to attenuate the vibration of the compressor and improve the vibration isolation effect;

(5) The main structure of the mounting bracket of the utility model is designed with reinforcing ribs, bosses and openings in many places, which strengthens the rigidity of the bracket as a whole and at the mounting point, improves the bracket mode, and further ensures the overall performance of the bracket;

(6) The motor suspension mounting point and compressor mounting point structure in the utility model can be adjusted according to the vehicle model requirements and the space in the front cabin, and is not limited by the bushing size and cabin space. It has the characteristics of strong applicability and platform promotion.

BRIEF DESCRIPTION OF THE DRAWINGS

The utility model is further described below in conjunction with the accompanying drawings and embodiments:

FIG1 is an isometric view of the assembly of the compressor and the mounting bracket in the utility model;

FIG2 is a side view of the assembly of the compressor and the mounting bracket in the utility model;

FIG3 is a rear view of the assembly of the compressor and the mounting bracket in the utility model;

FIG4 is a left side view of the assembly of the compressor and the mounting bracket in the utility model;

FIG. 5 is an isometric view of the mounting bracket of the present invention.

The figures are marked as follows: 1-mounting bolt; 2-gasket; 3-mounting point I between motor mounting bracket and motor; 4-mounting point II between motor mounting bracket and motor; 5-mounting point III between motor mounting bracket and motor; 6-motor mounting bracket; 7-compressor; 8-compressor mounting bracket; 9-mounting bracket; 10-mounting point I between bracket base and front subframe; 11-mounting point I between compressor and compressor mounting bracket; 12-mounting point II between compressor and compressor mounting bracket; 13-mounting point I between bracket base and front subframe Point II; 14-bracket base and front subframe mounting point III; 15-bushing I; 16-motor suspension first-level vibration isolation bushing; 17-mounting bolts between motor mounting bracket and bracket base; 18-bracket base and front subframe mounting point IV; 19-bracket base and front subframe mounting point V; 20-bracket base and front subframe mounting point VI; 21-bracket base; 22-weight reduction hole; 23-bushing II; 24-bushing III; 25-motor suspension mounting point reinforcement rib; 26-raised portion; 27-compressor mounting point reinforcement rib.

Detailed ways

As shown in the figure, the mounting bracket for the compressor and motor of the electric vehicle provided by the utility model comprises a bracket base 21, the upper end surface of the bracket base 21 is provided with a compressor mounting portion and a motor mounting portion, the compressor mounting portion comprises a first mounting portion and a second mounting portion arranged opposite to each other, a compressor mounting bracket for mounting the compressor is arranged between the first mounting portion and the second mounting portion, the motor mounting portion comprises a third mounting portion located between the first mounting portion and the second mounting portion and arranged perpendicularly to the first mounting portion, the third mounting portion is provided with a motor mounting bracket for suspending and mounting the motor toward the outside of the bracket base; wherein the first mounting portion, the second mounting portion and the third mounting portion are all formed by extending upward from the bracket base 21, and the first mounting portion and the second mounting portion are arranged opposite to each other, and the third mounting portion is arranged between the first mounting portion and the third mounting portion. The mounting bracket 9 in the present technical scheme integrates the bracket for motor suspension installation and the bracket for compressor installation on the same bracket base 21 to connect the motor and the compressor 7, so that the front motor and the compressor 7 are fixed together with the mounting bracket 9 at the place where the front sub-frame structure has large rigidity, which is more compact in installation and layout, saves layout space, is conducive to shortening assembly time, and improves vehicle production efficiency; at the same time, the bracket mechanism reduces the number of parts, is conducive to the overall layout and aesthetics of the cabin parts, and can reduce development costs and reduce vehicle costs to a certain extent, thereby improving product competitiveness; and the mounting point structure of the motor and the compressor can be adjusted according to the vehicle model requirements and the space in the front cabin, and is not limited by the bushing size and the cabin space, and has the characteristics of strong applicability and platform promotion.

In this embodiment, the first mounting portion is provided with a bushing I15 at the connection with the compressor mounting frame, and the second mounting portion is provided with a bushing II23 and a bushing III24 at the connection with the compressor mounting frame. The bushings I15, II23 and III24 are distributed in a triangular shape and their elastic centers are located at the same height position. As shown in FIG. 1 , a mounting groove structure is provided at the connection between the first mounting portion and the compressor mounting frame, in which the bushing I15 is installed, and the second mounting portion is provided with two mounting groove structures identical to the first mounting portion at the connection with the compressor mounting frame, and the bushings I15 and II23 are installed respectively. There are bushings II 23 and III 24; the compressor mounting bracket 8 fixes the compressor 7 and the compressor mounting bracket 8 together on the mounting bracket 9 through the three bushings I 15, II 23 and III 24 with low dynamic stiffness and limiting function, which can make full use of the deformation of the rubber bushing to attenuate the vibration of the compressor and improve the vibration isolation effect; at the same time, the elastic centers of bushings I 15, II 23 and III 24 are distributed in a triangular shape and the elastic centers are located at the same height position, ensuring that the bushings are evenly stressed, so that the bushings have high vibration isolation efficiency, reduce the vibration transmitted from the compressor to the vehicle body, and improve the NVH performance of the occupants.

In this embodiment, the center of mass of the installed compressor and the elastic center of bushing I 15 are located at the same height position, and the bushing II 23 and bushing III 24 are symmetrically arranged on both sides of the connection line between the elastic center of bushing I and the center of mass of the compressor after installation; since the elastic centers of the three bushings are located in the same horizontal plane, the center of mass of the installed compressor 7 is just located in the horizontal plane, coincident with the elastic center of bushing I 15, and symmetrically arranged with bushing II 23 and bushing III 24 on the connection line between the elastic center of bushing I and the center of mass of the compressor after installation, thereby ensuring that the center of mass of the compressor is located in the middle of the triangle formed by the elastic centers of the three bushings to achieve the purpose of vibration isolation.

In this embodiment, the bushing I15, bushing II23 and bushing III24 are provided with a protrusion 26 on the end surface facing the compressor 7; in order to prevent abnormal noise from being generated between the bushing I15, bushing II23 and bushing III24 and the first mounting part and the second mounting part respectively, the technical scheme designs a protrusion 26 on the end surface of the bushing I15, bushing II23 and bushing III24 facing the compressor 7, so as to better avoid abnormal contact noise between the bushing and the bracket mounting part under extreme working conditions.

In this embodiment, a compressor mounting point is provided on the compressor mounting bracket 8, and the compressor is connected and fixed at the compressor mounting point of the compressor mounting bracket by means of bolts; as shown in Figure 1, the compressor mounting points in this technical solution are mounting point Ⅰ11 between the compressor and the compressor mounting bracket and mounting point Ⅱ12 between the compressor and the compressor mounting bracket, and the compressor 7 is connected and fixed to the compressor mounting bracket 8 by bolts at the mounting points; the compressor mounting bracket 8 is connected to the compressor 7 by using two bolts, so that the installation structure of the compressor is simple, and the disassembly and assembly are convenient, which is convenient for the later maintenance of the compressor 7.

In this embodiment, the motor mounting bracket 6 is provided with a motor suspension first-level vibration isolation bushing 16 at the connection with the third mounting part, and the motor mounting bracket is provided with a motor suspension second-level vibration isolation bushing at the mounting point with the motor; as shown in Figures 1 and 2, the motor mounting bracket 6 is connected and fixed to the motor by mounting bolts 1, second-level vibration isolation bushings and gaskets 2 at the mounting point I3 between the motor mounting bracket and the motor, the mounting point II4 between the motor mounting bracket and the motor, and the mounting point III5 between the motor mounting bracket and the motor, respectively, and the motor mounting bracket 6 is connected to the third connecting part on the bracket base by mounting bolts 17 between the motor mounting bracket and the bracket base and first-level vibration isolation bushing 16 at the connection with the third mounting part; wherein the mounting point I3 between the motor mounting bracket and the motor, the mounting point II4 between the motor mounting bracket and the motor, and the mounting point III5 between the motor mounting bracket and the motor are arranged in a triangle to improve the stability of the product; and the motor suspension first-level vibration isolation bushing 16 and the motor suspension second-level vibration isolation bushing are provided at the mounting points to better isolate the vibration noise transmission of the motor.

In this embodiment, the bracket base 21 is provided with mounting holes for connecting with the front sub-frame on the upper end surface and the side surface respectively; in this technical solution, the bracket base 21 is provided with three mounting points on the upper end surface of the compressor installation side and is mainly connected and fixed with the longitudinal beam of the front sub-frame, namely, the bracket base 21 and the front sub-frame mounting point Ⅰ10, the bracket base 21 and the front sub-frame mounting point Ⅱ13 and the bracket base 21 and the front sub-frame mounting point Ⅲ14; and three mounting points connected with the front sub-frame cross beam are also provided on the motor installation side. The connected and fixed mounting points are mounting point IV18 between the mounting bracket and the front subframe, mounting point V19 between the mounting bracket and the front subframe, and mounting point VI20 between the mounting bracket and the front subframe, wherein mounting point VI20 between the mounting bracket and the front subframe is arranged on the side of the bracket base 21; the mounting bracket 9 as a whole is connected to the front subframe by using six bolts, which not only ensures the local dynamic stiffness of the mounting points of the motor mounting bracket and the compressor mounting bracket, but also avoids the overall stiffness of the mounting bracket 9 from being too weak to a certain extent.

In this embodiment, a compressor mounting point reinforcement rib 27 is provided between the bracket base 21 and the first mounting part and the second mounting part, and a motor suspension mounting point reinforcement rib 25 is provided between the bracket base 21 and the third mounting part; by providing the compressor mounting point reinforcement rib 27 and the motor suspension mounting point reinforcement rib 25, the dynamic stiffness between the bracket base 21 and the first mounting part, the second mounting part and the third mounting part is increased respectively, thereby ensuring the vibration isolation capability of the motor vibration isolation bushing and the compressor vibration isolation bushing.

In this embodiment, weight-reducing holes and reinforcing ribs are provided on the bracket base 21, the compressor mounting bracket 8 and the motor mounting bracket 6; as shown in Figures 3 and 4, a large number of weight-reducing holes and reinforcing ribs are designed on the bracket base part 21 and the side part 22 which have a slightly weaker impact on the performance, which is beneficial to improving the overall mode of the mounting bracket 9, thereby reducing the possibility of resonance of the mounting bracket 9. The same is true for the compressor mounting bracket 8 and the motor mounting bracket 6; reinforcing ribs, bosses and weight-reducing holes are designed in multiple places on the structures of the bracket base 21, the compressor mounting bracket 8 and the motor mounting bracket 6 to strengthen the rigidity of the bracket as a whole and at the mounting point, improve the bracket mode, and further ensure the overall performance of the bracket.

In this embodiment, the bracket base 21, the compressor mounting bracket 8 and the motor mounting bracket 6 are all made of one-piece molding; the main structure part of the mounting bracket of this technical solution is made of aluminum alloy integrated die-casting, which can reasonably avoid surrounding components and design various installation points, taking into account performance and layout requirements.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims (10)

1. A mounting bracket for an electric vehicle compressor and a motor, characterized in that it comprises a bracket base, wherein the upper end surface of the bracket base is provided with a compressor mounting portion and a motor mounting portion, wherein the compressor mounting portion comprises a first mounting portion and a second mounting portion which are arranged opposite to each other, wherein a compressor mounting bracket for mounting the compressor is arranged between the first mounting portion and the second mounting portion, wherein the motor mounting portion comprises a third mounting portion which is located between the first mounting portion and the second mounting portion and is arranged perpendicular to the first mounting portion, wherein the third mounting portion is provided with a motor mounting bracket for suspending and mounting the motor on the outer side of the bracket base. 2. The mounting bracket for an electric vehicle compressor and a motor according to claim 1 is characterized in that: the first mounting portion is provided with a bushing I at the connection with the compressor mounting frame, and the second mounting portion is provided with a bushing II and a bushing III at the connection with the compressor mounting frame, and the bushings I, II and III are distributed in a triangular shape and the elastic centers are located at the same height position. 3. The mounting bracket for electric vehicle compressor and motor according to claim 2 is characterized in that the center of mass of the installed compressor and the elastic center of bushing I are located at the same height position, and bushing II and bushing III are symmetrically arranged on both sides of the connecting line between the elastic center of bushing I and the center of mass of the installed compressor. 4. The mounting bracket for the electric vehicle compressor and motor according to claim 3, characterized in that: the bushings I, II and III are provided with protrusions on the end surfaces facing the compressor. 5. The mounting bracket for the compressor and motor of an electric vehicle according to claim 1, characterized in that a compressor mounting point is provided on the compressor mounting bracket, and the compressor is connected and fixed at the compressor mounting point of the compressor mounting bracket by means of bolts. 6. The mounting bracket for an electric vehicle compressor and a motor according to claim 1 is characterized in that: the motor mounting bracket is provided with a motor suspension primary vibration isolation bushing at the connection with the third mounting portion, and the motor mounting bracket is provided with a motor suspension secondary vibration isolation bushing at the mounting point with the motor. 7. The mounting bracket for the compressor and motor of an electric vehicle according to claim 1, characterized in that mounting holes for connecting with the front sub-frame are respectively provided on the upper end surface and the side surface of the bracket base. 8. The mounting bracket for an electric vehicle compressor and a motor according to claim 1 is characterized in that a compressor mounting point reinforcement rib is provided between the bracket base and the first mounting portion and the second mounting portion, and a motor suspension mounting point reinforcement rib is provided between the bracket base and the third mounting portion. 9. The mounting bracket for the compressor and motor of an electric vehicle according to claim 1, characterized in that: weight-reducing holes and reinforcing ribs are provided on the bracket base, the compressor mounting bracket and the motor mounting bracket. 10. The mounting bracket for the compressor and motor of an electric vehicle according to claim 1, characterized in that the bracket base, the compressor mounting bracket and the motor mounting bracket are all made by integral molding.