A compressor support based on a new energy vehicle and a new energy vehicle

Abstract

The application provides a compressor support based on a new energy automobile and the new energy automobile, wherein the support comprises a support body, at least three electric drive mounting holes, at least three compressor mounting holes and a suspension bush mounting hole are arranged on the support body, the electric drive mounting hole is used for being connected with an electric drive assembly, and the compressor mounting hole is used for being connected with a compressor; and a suspension bush is mounted in the suspension bush mounting hole and is used for being connected with a suspension system of a vehicle body. The application can realize the mounting and fixing of the electric drive assembly and the compressor and the connection of the compressor support and the vehicle body, forms an integrated electric drive-compressor combined system, can effectively isolate the vibration generated by the electric drive assembly and the compressor, reduces the noise generated by the operation of the motor and the compressor, and improves the performance of the whole vehicle.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, specifically to a compressor bracket for new energy vehicles and a new energy vehicle. Background Technology

[0002] With the development of new energy vehicles, the number of vehicle components is increasing, and the requirements for NVH (Noise, Vibration, and Harshness) performance and layout space of the entire vehicle are also becoming more stringent. Among these components, the air conditioning compressor, as the heart of the automotive air conditioning system, plays a crucial role in compressing and transporting refrigerant vapor. It is typically mounted in the vehicle's electric motor compartment using a corresponding compressor bracket, integrated with the electric drive assembly. Since the compressor or motor generates noise and vibration during operation, the design and structure of the compressor bracket play a significant role in securing the compressor and electric drive assembly and reducing vibration.

[0003] Chinese patent CN215435926U discloses an automotive compressor mounting bracket assembly, including a bracket body, three first bushings, and three second bushings. The bracket body is a one-piece molded structure with three first mounting holes and three second mounting holes arranged in a triangular pattern. One of the first mounting holes is located within the triangular area formed by the three second mounting holes, and another of the second mounting holes is located within the triangular area formed by the three first mounting holes. The three first bushings are respectively interference-fitted into the three first mounting holes and screwed to bolts connecting to the compressor assembly. The three second bushings are respectively interference-fitted into the three second mounting holes and screwed to bolts connecting to the vehicle body assembly. This reduces the space occupied during installation and improves assembly stability and vibration isolation. However, this automotive compressor cannot be installed with an electric drive system for new energy vehicles, thus failing to form an integrated electric drive-compressor combination system. Furthermore, this compressor mounting bracket requires six bushings, resulting in higher costs. Summary of the Invention

[0004] One objective of this invention is to provide a compressor bracket for new energy vehicles, so as to solve the technical problems that the compressor bracket cannot be connected to the electric drive and the manufacturing cost of the compressor bracket is high in the prior art; the second objective is to provide a new energy vehicle.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] In a first aspect, the present invention provides a compressor bracket for a new energy vehicle, the bracket comprising: a bracket body having at least three electric drive mounting holes, at least three compressor mounting holes, and a suspension bushing mounting hole, the electric drive mounting holes being for connecting to an electric drive assembly, and the compressor mounting holes being for connecting to a compressor; and a suspension bushing installed in the suspension bushing mounting hole for connecting to the vehicle's suspension system.

[0007] In one embodiment of the present invention, the electric drive mounting holes include a first electric drive mounting hole, a second electric drive mounting hole, and a third electric drive mounting hole, which are arranged in a first triangle. The compressor mounting holes include a first compressor mounting hole, a second compressor mounting hole, and a third compressor mounting hole, which are arranged in a second triangle.

[0008] In one embodiment of the present invention, the outer contour of the support body is quadrilateral and the interior has a hollow structure. The support body is divided into a first corner, a second corner, a third corner and a fourth corner in a clockwise direction, starting from the upper vertex of the quadrilateral.

[0009] In one embodiment of the present invention, the first electric drive mounting hole is disposed at the third corner, the second electric drive mounting hole is disposed outside the second triangle, the third electric drive mounting hole is disposed inside the second triangle, the first compressor mounting hole is disposed at the first corner, the second compressor mounting hole is disposed at the second corner, the third compressor mounting hole is disposed inside the first triangle, and the suspension bushing mounting hole is disposed at the fourth corner.

[0010] In one embodiment of the present invention, the bracket body is provided with peripheral reinforcing ribs, and each mounting hole is provided with at least two connecting brackets for connecting with at least two other mounting holes. The inner circumference of the bracket body, the outer circumference of each mounting hole and the two sides of the connecting bracket are provided with inner circumference reinforcing ribs.

[0011] In one embodiment of the present invention, the suspension bushing is interference-fitted with the suspension bushing mounting hole.

[0012] In one embodiment of the present invention, the electric drive assembly is provided with at least three first bracket mounting holes, and the compressor is provided with at least three second bracket mounting holes. On one side of the bracket body, each electric drive mounting hole is locked to each first bracket mounting hole by bolts. On the other side of the bracket body, each compressor mounting hole is locked to each second bracket mounting hole by bolts to form an electric drive-compressor combination system. The suspension bushing is locked to the suspension in the vehicle body by bolts to connect the electric drive-compressor combination system to the vehicle body.

[0013] In one embodiment of the present invention, the modal and dynamic stiffness of the support body are set according to the mass characteristics of the motor-compressor combined system.

[0014] In a second aspect, the present invention provides a new energy vehicle that uses the compressor bracket for new energy vehicles as described in the first aspect.

[0015] In one embodiment of the present invention, the new energy vehicle includes an electric drive assembly and a compressor. The electric drive assembly is connected to one side of the compressor bracket, and the compressor is connected to the other side of the compressor bracket, so that the electric drive assembly and the compressor form an electric drive-compressor combined system through the compressor bracket.

[0016] In one embodiment of the present invention, the electric drive assembly is provided with at least three first bracket mounting holes, and the compressor is provided with at least three second bracket mounting holes. Each first bracket mounting hole is locked to each electric drive mounting hole by bolts, and each second bracket mounting hole is locked to each compressor mounting hole by bolts.

[0017] In one embodiment of the present invention, the electric drive assembly is provided with two mounting holes, and the electric drive-compressor combination system is locked to the vehicle body by bolts through the mounting bushing on the compressor bracket and the mounting holes.

[0018] In one embodiment of the present invention, the electric drive assembly includes a motor, a reducer, an electrical control box, and a motor housing. The origin is taken as the intersection of the rotor axis of the motor and the first mating surface formed by the motor and the reducer, the normal of the second mating surface formed by the electrical control box and the motor housing is taken as the Z-axis, the rotor axis is taken as the Y-axis, and the X-axis is determined according to the right-hand rule, thus establishing the reference coordinate system of the electric drive-compressor combination system.

[0019] In one embodiment of the present invention, the suspension system includes a left suspension, a right suspension, and a rear suspension. The projection of the line connecting the geometric center of the elastic surface of the suspension system formed by the left suspension, the right suspension, and the rear suspension and the centroid of the electric drive-compressor combination system onto the XY plane is less than or equal to a first preset length threshold. The distance from the centroid to the elastic surface of the suspension system is less than or equal to a second preset length threshold. The XY plane is the plane formed by the X-axis and the Y-axis.

[0020] The beneficial effects of this invention are:

[0021] The bracket body connects to the electric drive assembly and the compressor via multiple electric drive mounting holes and multiple compressor mounting holes, respectively, thus achieving a common connection between the electric drive assembly and the compressor. This forms an integrated electric drive-compressor combination system, enabling the compressor bracket to perform connection, limiting, support, and frequency isolation functions. Then, through the suspension bushings installed on the compressor bracket, it achieves connection with the vehicle body suspension system. This effectively isolates the vibration generated by the electric drive assembly and the compressor, reduces the noise generated by the operation of the motor and compressor, simplifies the manufacturing and assembly processes, reduces costs, and improves the overall vehicle performance. Attached Figure Description

[0022] Figure 1 This is an axial side view of a compressor bracket based on a new energy vehicle, as shown in an exemplary embodiment of the present invention;

[0023] Figure 2 This is a front view of a compressor bracket based on a new energy vehicle, as shown in an exemplary embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of an electric drive assembly shown in an exemplary embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the compressor structure shown in an exemplary embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram illustrating the connection between a compressor, an electric drive assembly, and a compressor bracket based on a new energy vehicle, as shown in an exemplary embodiment of the present invention.

[0027] Figure 6 This is a schematic diagram of a trilinear pendulum tester shown in an exemplary embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the reference coordinate system of an electric drive-compressor combined system shown in an exemplary embodiment of the present invention;

[0029] Figure 8This is a schematic diagram of the projection of the line connecting the geometric center of the elastic surface of the suspension system and the center of mass of the electric drive-compressor combination system on the XY plane in one embodiment of this application.

[0030] Figure 9 This is a schematic diagram illustrating the distance from the center of mass of the electric drive-compressor combination system to the elastic surface of the suspension system, according to an exemplary embodiment of the present invention.

[0031] Wherein, 1-bracket body; 11-electric drive mounting hole; 12-compressor mounting hole; 13-suspension bushing mounting hole; 14-reinforcing rib; 2-suspension bushing; 3-electric drive assembly; 31-first bracket mounting hole; 32-motor; 33-motor housing; 34-reducer; 35-electric control box; 4-compressor; 41-second bracket mounting hole. Detailed Implementation

[0032] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other. It should also be understood that the terminology used in the embodiments of the present invention is for describing specific implementation schemes and not for limiting the scope of protection of the present invention. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0033] Please see Figures 1-9 It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings of this specification are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of the invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0034] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise stated in the present invention, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this invention, as well as the prior art known to those skilled in the art and the description of this invention, may be implemented using any prior art methods, devices, and materials similar to or equivalent to those described, used, or made of materials in the embodiments of this invention.

[0035] Please see Figure 1 This invention provides a compressor bracket based on new energy vehicles. Figure 1 This is an axonometric schematic diagram of a compressor bracket based on a new energy vehicle, illustrating an exemplary embodiment of the present invention. Figure 1 As shown, the compressor bracket for new energy vehicles includes at least a bracket body 1 and a suspension bushing 2. The bracket body 1 has at least three electric drive mounting holes 11, at least three compressor mounting holes 12, and one suspension bushing mounting hole 13. The electric drive mounting holes 11 are used to connect to the electric drive assembly, and the compressor mounting holes 12 are used to connect to the compressor. Additionally, the suspension bushing 2 is installed within the suspension bushing mounting hole 13 and is used to connect to the vehicle's suspension system, thus securing it to the vehicle body.

[0036] In this embodiment, the electric drive assembly and the compressor are connected to the bracket body 1 through multiple electric drive mounting holes 11 and multiple compressor mounting holes 12 respectively, thus realizing the common connection of the electric drive and the compressor and forming an integrated electric drive-compressor combination system. This enables the compressor bracket to have the functions of connection, limiting, support and frequency avoidance. Then, the connection with the vehicle body suspension system is realized through the suspension bushing 2 installed on the compressor bracket. This effectively isolates the vibration generated by the electric drive assembly and the compressor, reduces the noise generated by the operation of the motor and the compressor, simplifies the manufacturing and assembly process, reduces costs and improves the overall vehicle performance.

[0037] It should be noted that the electric drive mounting hole 11 and the compressor mounting hole 12 protrude to both sides, and the height of the protrusion is determined by the height of the mounting holes on the electric drive assembly and the compressor, showing a positive correlation. Furthermore, the height of the protrusion of the electric drive mounting hole 11 and the compressor mounting hole 12 will not affect the normal operation of the electric drive assembly and the compressor. After the suspension bushing 2 is installed onto the suspension bushing mounting hole, it also protrudes from the bracket body 1, and its protruding side is the same as the protruding side of the compressor mounting hole 12.

[0038] Additionally, it should be noted that the number of electric drive mounting holes 11 and compressor mounting holes 12 is at least three, meaning there can be three, four, five, etc., respectively. Figure 1As shown, the optimal number is three, which can achieve the connection and fixation of the electric drive assembly and compressor with the fewest number of holes while ensuring connection stability. This simplifies the manufacturing and assembly process of the compressor bracket and reduces costs.

[0039] Please continue reading. Figure 1 In one embodiment, the electric drive mounting hole 12 includes a first electric drive mounting hole, a second electric drive mounting hole, and a third electric drive mounting hole, which are arranged in a first triangle. The compressor mounting hole 13 includes a first compressor mounting hole, a second compressor mounting hole, and a third compressor mounting hole, which are arranged in a second triangle.

[0040] In this embodiment, the first electric drive mounting hole, the second electric drive mounting hole, and the third electric drive mounting hole are arranged in a first triangle, which can ensure a reliable connection between the electric drive assembly and the new energy vehicle compressor bracket, and at the same time ensure that the electric drive torque is evenly transmitted to the bracket body, preventing fatigue failure caused by stress concentration in the bracket. Similarly, the first compressor mounting hole, the second compressor mounting hole, and the third compressor mounting hole are arranged in a second triangle, which can ensure a reliable connection between the compressor and the new energy vehicle compressor bracket, and at the same time ensure that the compressor torque is evenly transmitted to the bracket body, preventing fatigue failure caused by stress concentration in the bracket.

[0041] Please continue reading. Figure 1 In one embodiment, the outer contour of the support body 1 is quadrilateral, and the interior has a hollow structure. The support body 1 is divided into a first corner, a second corner, a third corner, and a fourth corner in a clockwise direction, starting from the top vertex of the quadrilateral.

[0042] In this embodiment, the outer contour of the bracket 1 is quadrilateral and the interior has a hollow structure, which ensures the stability of the bracket while reducing the weight of the bracket body.

[0043] Please continue reading. Figure 1 In one embodiment, the first electric drive mounting hole is located at the third corner, the second electric drive mounting hole is located outside the second triangle, the third electric drive mounting hole is located inside the second triangle, the first compressor mounting hole is located at the first corner, the second compressor mounting hole is located at the second corner, the third compressor mounting hole is located inside the first triangle, and the suspension bushing mounting hole is located at the fourth corner.

[0044] In this embodiment, mounting holes are distributed on both the outer contour and the interior of the bracket, which ensures that the bracket body 1 is subjected to uniform force. By placing the third electric drive mounting hole within the second triangle and the third compressor mounting hole within the first triangle, the first and second triangles are intersecting, resulting in better stability of the bracket body after assembly and significantly reducing the transmission of vibrations caused by compressor operation to the vehicle body.

[0045] Please continue reading Figure 1 In one embodiment, the bracket body 1 is provided with peripheral reinforcing ribs 14, and each mounting hole is provided with at least two connecting brackets for connecting with at least two other mounting holes. The inner circumference of the bracket body 1, the outer circumference of each mounting hole and the inner circumference formed by the two sides of the connecting brackets are provided with inner circumference reinforcing ribs 14.

[0046] In this embodiment, the support body can be made of aluminum alloy or other lightweight metal materials with high strength, high plasticity, and easy processing. The reinforcing rib 14 can enhance the strength of the support body 1. At least two connecting brackets are provided on each mounting hole for connection with at least two other mounting holes, which can ensure that the support body 1 can reduce its own weight while ensuring the stability and firmness of each mounting hole.

[0047] In one embodiment, the suspension bushing is interference-fitted with the suspension bushing mounting hole.

[0048] Interference fit refers to a connection achieved through an interference fit between parts. This fit utilizes the elasticity of the material to enlarge and deform the hole, allowing it to fit onto the shaft. When the hole returns to its original shape, it generates a clamping force on the shaft, connecting the two parts. The connection structure is simple and can withstand torque, axial force, or a combination of both. It also has high load-bearing capacity and can operate reliably under impact and vibration loads. The interference fit between the suspension bushing and its mounting hole ensures a reliable connection between them.

[0049] Please see Figure 2 , Figure 2 This is a front view of a compressor bracket based on a new energy vehicle, illustrating an exemplary embodiment of the present invention. Figure 2 As shown, 1-bracket body, 11-electric drive mounting hole, 12-compressor mounting hole, 13-suspension bushing mounting hole, 14-reinforcing rib, 2-suspension bushing.

[0050] Please see Figures 3-5 ,in, Figure 3 This is a schematic diagram of the structure of an electric drive assembly shown in an exemplary embodiment of the present invention. Figure 4 This is a schematic diagram of the compressor structure shown in an exemplary embodiment of the present invention. Figure 5This is a schematic diagram illustrating the connection between a compressor, an electric drive assembly, and a compressor bracket based on a new energy vehicle, according to an exemplary embodiment of the present invention. In one embodiment, the electric drive assembly 3 is provided with at least three first bracket mounting holes 31, and the compressor 4 is provided with at least three second bracket mounting holes 41. On one side of the bracket body 1, each electric drive mounting hole 11 is bolted to each first bracket mounting hole 21. On the other side of the bracket body 1, each compressor mounting hole 12 is bolted to each second bracket mounting hole 41, forming an electric drive-compressor combination system. The suspension bushing 2 is bolted to the suspension in the vehicle body to connect the electric drive-compressor combination system to the vehicle body. It should be noted that the connection between the suspension bushing 2 and the suspension in the vehicle body is not... Figure 4 This is reflected in the text.

[0051] As one possible embodiment, when the electric drive and compressor are mounted on the compressor bracket, firstly, the three electric drive mounting holes 11 are aligned one-to-one with the three first bracket mounting holes 31 on the electric drive assembly 3, and can be locked together using M12 fine-pitch bolts. Then, the three compressor mounting holes 12 are aligned one-to-one with the three second bracket mounting holes 41 on the compressor 4, and can be locked together using M8 fine-pitch bolts. At this point, the electric drive assembly 3, compressor 4, and compressor bracket are connected as a whole. Finally, they are connected to the vehicle body at the suspension bushing 2 using an M12 fine-pitch bolt. In addition, all mounting holes and mounting surfaces on the bracket body 1 are machined using CNC (Computer Numerical Control) to ensure the required precision.

[0052] In one embodiment, the modal and dynamic stiffness of the support body 1 are set according to the mass characteristics of the motor-compressor combined system.

[0053] As one possible embodiment, a trilinear pendulum test method is employed. Using testing equipment and instruments such as a computer, trilinear pendulum tester, millisecond meter, gauge, ruler, level, and counterweights, the mass, center of mass, and moment of inertia of the electric drive-compressor combined system are measured and defined. Please refer to [link to relevant documentation]. Figure 6 , Figure 6 This is a schematic diagram of a tricycloidal tester illustrating an exemplary embodiment of the present invention. Figure 6 As shown, a homogeneous tray is symmetrically suspended horizontally by three cycloids of equal length. It should be noted that the tricycloid test method is a commonly used method for measuring the mass, center of mass, and moment of inertia of an object; it is a mature existing technology. Therefore, this embodiment will not elaborate on the testing of the mass, center of mass, and moment of inertia of the electric drive-compressor combined system.

[0054] In addition, the electric drive-compressor combination system has three operating conditions: compressor operating alone, electric drive operating alone, and compressor and electric drive operating simultaneously. The vibration intensity of the electric drive-compressor combination system is different under different operating conditions, and the resulting offset is also different. It is necessary to measure the modal and dynamic stiffness of the support body 1 under the above three operating conditions. Based on the measurement results, through topology optimization and reinforcement, it is ensured that the modal of the support body and the electric drive-compressor combination system achieve frequency avoidance of more than 10%, and that the three-dimensional dynamic stiffness of the support body is greater than the target value of dynamic stiffness. The target value is set according to different electric drives.

[0055] The present invention also provides a new energy vehicle that uses the compressor bracket for new energy vehicles as described above.

[0056] Please see Figures 3-5 In one embodiment, the new energy vehicle includes an electric drive assembly 3 and a compressor 4. The electric drive assembly 3 is connected to one side of the compressor bracket, and the compressor 4 is connected to the other side of the compressor bracket, so that the electric drive assembly 3 and the compressor 4 form an electric drive-compressor combination system through the compressor bracket.

[0057] Specifically, the electric drive assembly 3 is provided with at least three first bracket mounting holes 31, and the compressor 4 is provided with at least three second bracket mounting holes 41. Each first bracket mounting hole 31 is locked to each electric drive mounting hole 11 by bolts, and each second bracket mounting hole 41 is locked to each compressor mounting hole 12 by bolts.

[0058] In one embodiment, the electric drive assembly is provided with two mounting holes, and the electric drive-compressor combination system is locked to the vehicle body mounting system by bolts through the mounting bushing on the compressor bracket and the mounting holes.

[0059] By connecting the electric drive and compressor brackets to the vehicle's suspension system respectively, the overall stability of the electric drive-compressor combination system is further ensured, effectively playing a role in frequency avoidance.

[0060] Please see Figure 7 , Figure 7 This is a schematic diagram of the reference coordinate system of an electric drive-compressor combined system illustrated in an exemplary embodiment of the present invention. In one embodiment, as... Figure 7 As shown, the electric drive assembly 3 includes a motor 32, a reducer 34, an electrical control box 35, and a motor housing 33. The origin is the intersection of the rotor axis of the motor 32 and the first mating surface formed by the motor 32 and the reducer 34. The Z-axis is the normal of the second mating surface formed by the electrical control box 35 and the motor housing 33. The Y-axis is the rotor axis. The X-axis is determined according to the right-hand rule. The reference coordinate system of the electric drive-compressor combination system is established.

[0061] The direction pointing towards the control box is +Z, and the direction pointing towards the reducer is -Y. Additionally, the right-hand rule is the rotation right-hand rule within the coordinate system's right-hand rule. When the bent four fingers represent a given direction of rotation, the extended thumb determines the associated vector. For example, if the given direction of rotation is from the positive Y-axis to the positive Z-axis, the direction specified by the thumb is the positive X-axis.

[0062] In one embodiment, the suspension system includes a left suspension, a right suspension, and a rear suspension. The projection of the line connecting the geometric center of the elastic surface of the suspension system formed by the left suspension, right suspension, and rear suspension and the centroid of the electric drive-compressor combination system onto the XY plane is less than or equal to a first preset length threshold. The distance from the centroid to the elastic surface of the suspension system is less than or equal to a second preset length threshold. The XY plane is the plane formed by the X-axis and the Y-axis.

[0063] Please see Figure 8 , Figure 8 This is a schematic diagram of the projection of the line connecting the geometric center of the elastic surface of the suspension system and the center of mass of the electric drive-compressor combination system shown in one embodiment of this application onto the XY plane. Figure 8 As shown, the lines connecting the left, right, and rear suspensions of the suspension system form an elastic surface. The geometric center of the elastic surface is the elastic center in the figure. The projection of the line connecting the center of mass of the electric drive-compressor combination system to the center of mass of the electric drive-compressor combination system on the XY plane is S1. When the electric drive-compressor combination system is installed in the vehicle body, its position relative to the suspension system needs to satisfy S1 ≤ a first preset length threshold. Preferably, the first preset length threshold is 60mm.

[0064] Please see Figure 9 , Figure 9 This is a schematic diagram illustrating the distance from the center of mass of the electric drive-compressor combination system to the elastic surface of the suspension system, as shown in an exemplary embodiment of the present invention. Figure 9 As shown, the line connecting the left, right and rear suspensions of the suspension system forms an elastic surface. The distance from the center of mass of the electric drive-compressor combination system to the elastic surface is S2. When the electric drive-compressor combination system is installed in the vehicle body, its position relative to the suspension system must satisfy S2 ≤ a second preset length threshold. Preferably, the second preset length threshold is 100mm.

[0065] Based on 28 load conditions according to General Motors' global standards, the displacement of the electric drive-compressor combination system under the maximum load in the vehicle coordinate system is calculated under three conditions: compressor operating alone, electric drive operating alone, and compressor and electric drive operating simultaneously. The maximum value is taken as the reference value to ensure that the clearance with the surroundings is greater than this reference value.

[0066] In summary, this invention connects the electric drive assembly and the compressor via multiple electric drive mounting holes and multiple compressor mounting holes on the bracket body, respectively, thus achieving a common connection between the electric drive assembly and the compressor. This forms an integrated electric drive-compressor combination system, enabling the compressor bracket to perform connection, limiting, support, and frequency isolation functions. Furthermore, the suspension bushing installed on the compressor bracket achieves connection with the vehicle body suspension system. This effectively isolates the vibrations generated by the electric drive assembly and the compressor, reduces the noise generated by the operation of the motor and compressor, simplifies the manufacturing and assembly processes, reduces costs, and improves the overall vehicle performance.

[0067] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A compressor bracket based on new energy vehicles, characterized in that, The support includes: The bracket body has at least three electric drive mounting holes, at least three compressor mounting holes, and one suspension bushing mounting hole. The electric drive mounting holes are used to connect to the electric drive assembly, and the compressor mounting holes are used to connect to the compressor. Suspension bushing, the suspension bushing is installed in the suspension bushing mounting hole for connection with the vehicle body's suspension system; The electric drive mounting holes include a first electric drive mounting hole, a second electric drive mounting hole, and a third electric drive mounting hole, which are arranged in a first triangle. The compressor mounting holes include a first compressor mounting hole, a second compressor mounting hole, and a third compressor mounting hole, which are arranged in a second triangle. The bracket body has a quadrilateral outer contour and a hollow internal structure. Starting from the top vertex of the quadrilateral, the bracket body has a first corner, a second corner, a third corner, and a fourth corner in a clockwise direction. The first electric drive mounting hole is located at the third corner, the second electric drive mounting hole is located outside the second triangle, the third electric drive mounting hole is located inside the second triangle, the first compressor mounting hole is located at the first corner, the second compressor mounting hole is located at the second corner, the third compressor mounting hole is located inside the first triangle, and the suspension bushing mounting hole is located at the fourth corner. The electric drive assembly and the compressor form an electric drive-compressor combined system via the bracket body; The electric drive assembly includes a motor, a reducer, an electrical control box, and a motor housing. The origin is the intersection of the motor's rotor axis and the first mating surface formed by the motor and reducer. The normal to the second mating surface formed by the electrical control box and motor housing is the Z-axis, and the rotor axis is the Y-axis. The X-axis is determined according to the right-hand rule, establishing a reference coordinate system for the electric drive-compressor combination system. The mounting system includes a left mount, a right mount, and a rear mount. The projection of the line connecting the geometric center of the elastic surface of the mounting system formed by the left, right, and rear mounts and the centroid of the electric drive-compressor combination system onto the XY plane is less than or equal to a first preset length threshold. The distance from the centroid to the elastic surface of the mounting system is less than or equal to a second preset length threshold. The XY plane is the plane formed by the X-axis and the Y-axis.

2. The compressor bracket based on new energy vehicles according to claim 1, characterized in that, The bracket body is provided with an outer reinforcing rib, and each mounting hole is provided with at least two connecting brackets for connecting with at least two other mounting holes. The inner circumference of the bracket body, the outer circumference of each mounting hole and the two sides of the connecting bracket are provided with inner circumference reinforcing ribs.

3. The compressor bracket based on new energy vehicles according to claim 1, characterized in that, The suspension bushing is interference-fitted with the suspension bushing mounting hole.

4. The compressor bracket based on new energy vehicles according to any one of claims 1 to 3, characterized in that, The electric drive assembly is provided with at least three first bracket mounting holes, and the compressor is provided with at least three second bracket mounting holes. On one side of the bracket body, each electric drive mounting hole is locked to each first bracket mounting hole by bolts. On the other side of the bracket body, each compressor mounting hole is locked to each second bracket mounting hole by bolts to form an electric drive-compressor combination system. The suspension bushing is locked to the suspension in the vehicle body by bolts to connect the electric drive-compressor combination system to the vehicle body.

5. The compressor bracket based on new energy vehicles according to claim 4, characterized in that, The modal and dynamic stiffness of the support body are set according to the mass characteristics of the electric drive-compressor combined system.

6. A new energy vehicle, characterized in that, Use the compressor bracket based on new energy vehicles as described in any one of claims 1 to 5.

7. The new energy vehicle according to claim 6, characterized in that, The new energy vehicle includes an electric drive assembly and a compressor. The electric drive assembly is connected to one side of the compressor bracket, and the compressor is connected to the other side of the compressor bracket, so that the electric drive assembly and the compressor form an electric drive-compressor combined system through the compressor bracket.

8. The new energy vehicle according to claim 7, characterized in that, The electric drive assembly is provided with at least three first bracket mounting holes, and the compressor is provided with at least three second bracket mounting holes. Each first bracket mounting hole is locked to each electric drive mounting hole by bolts, and each second bracket mounting hole is locked to each compressor mounting hole by bolts.

9. The new energy vehicle according to claim 7, characterized in that, The electric drive assembly is provided with two mounting holes. The electric drive-compressor combination system is connected to the vehicle body's mounting system by bolts through the mounting bushing on the compressor bracket and the mounting holes.

Images