CN115402077A - New forms of energy car motor assembly suspension system structure - Google Patents

New forms of energy car motor assembly suspension system structure Download PDF

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Publication number
CN115402077A
CN115402077A CN202211066666.8A CN202211066666A CN115402077A CN 115402077 A CN115402077 A CN 115402077A CN 202211066666 A CN202211066666 A CN 202211066666A CN 115402077 A CN115402077 A CN 115402077A
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CN
China
Prior art keywords
motor
suspension
gearbox
support
assembly
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CN202211066666.8A
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Chinese (zh)
Inventor
李海雄
鞠彤晖
胡攀峰
石裕辉
刘小明
杨晖
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Dongfeng Trucks Co ltd
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Dongfeng Trucks Co ltd
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Priority to CN202211066666.8A priority Critical patent/CN115402077A/en
Publication of CN115402077A publication Critical patent/CN115402077A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/09—Means for mounting load bearing surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The invention relates to a suspension system structure of a motor assembly of a new energy vehicle, which comprises a motor suspension bracket, a motor suspension cushion assembly, a gearbox suspension bracket and a gearbox suspension cushion assembly, wherein two sides of the motor assembly are fixedly arranged between longitudinal beams through the motor suspension bracket; both sides of the gearbox assembly are fixedly arranged between the longitudinal beams through gearbox suspension supports, the gearbox suspension supports are integrally of an L-shaped structure, the side faces of the gearbox suspension supports are fixedly connected with the gearbox assembly, and the end portions of the gearbox suspension supports are fixedly connected to the ventral faces of the longitudinal beams of the frame through gearbox suspension cushion assemblies. The motor and the gearbox suspension cushion assembly are both of vertical mounting structures, and the assembly manufacturability is good; the motor and the gearbox suspension bracket are both L-shaped castings, are high in constraint mode, are larger than 400Hz, and have small risk of resonance with the motor excitation frequency.

Description

New forms of energy car motor assembly suspension system structure
Technical Field
The invention relates to a new energy commercial vehicle, in particular to a suspension system structure of a motor assembly of the new energy vehicle.
Background
The prior art motor transmission assembly suspension system adopts pocket formula structure under the four points more, and the motor suspension adopts pocket formula structure under the two points V type, and the transmission suspension adopts pocket structure under the two points horizontal type.
The prior art has the following defects: 1. the suspension bracket passes through the lower part of the motor gearbox assembly, the minimum height of the suspension system is lower than that of the motor gearbox assembly, and the motor gearbox assembly suspension system has influence on the trafficability characteristic of the whole vehicle; 2. the motor suspension adopts two-point V-shaped arrangement, the suspension cushion is installed in an inclined way, a central bolt of the suspension cushion needs to be tightened from the lower side to the upper side in the assembly process, and the assembly manufacturability is poor; 3. the gearbox is arranged on the lower pocket beam, the lower pocket beam is connected to the outer side surface of the frame in a manner of crossing the frame, and the connecting structure is complex, heavy in weight and high in cost; 4. the gear box suspension lower pocket beam assembly is constrained at the modal bottom, about 80Hz, and has resonance risk with the excitation frequency of the motor, thereby affecting the NVH performance of the whole vehicle.
Disclosure of Invention
In order to solve the problems, the invention provides a new energy vehicle motor assembly suspension system structure which is good in assembly manufacturability and low in risk of resonance with motor excitation frequency.
The technical scheme adopted by the invention is as follows: the utility model provides a new forms of energy car motor assembly suspension system structure which characterized in that: the vehicle frame longitudinal beam suspension device comprises a motor suspension support, a motor suspension cushion assembly, a transmission suspension support and a transmission suspension cushion assembly, wherein two sides of the motor assembly are fixedly arranged between longitudinal beams through the motor suspension support;
gearbox assembly both sides are all passed through gearbox suspension support fixed mounting is between the longeron, gearbox suspension support wholly is L type structure, side and gearbox assembly fixed connection, and the tip passes through gearbox suspension cushion assembly fixed connection on the solebar ventral surface.
Preferably, the mounting heights of the motor suspension brackets on the two sides of the motor assembly are consistent.
Preferably, the mounting heights of the gearbox suspension brackets on the two sides of the gearbox assembly are consistent.
Preferably, the motor suspension support is a casting and comprises a first motor support mounting hole, a motor support reinforcing rib and a second motor support mounting hole, and the motor suspension support is fixedly connected with the motor assembly through the first motor support mounting hole and is fixedly connected with the motor suspension cushion assembly through the second motor support mounting hole.
Preferably, the gearbox suspension support is a casting and comprises a first gearbox support mounting hole, a gearbox support reinforcing rib and a second gearbox support mounting hole, and the gearbox suspension support is fixedly connected with the gearbox assembly through the first gearbox support mounting hole and is fixedly connected with the gearbox suspension cushion assembly through the second gearbox support mounting hole.
As preferred, motor suspension cushion assembly is full enclosed structure, including inner frame and outer bracket, inner frame and outer bracket are the foundry goods, be equipped with the inner frame mounting hole on the inner frame, outer bracket mounting hole on the outer bracket, motor suspension cushion assembly passes through inner frame mounting hole and motor suspension support fixed connection, through outer bracket mounting hole and solebar ventral surface fixed connection.
Further, the second outer bracket mounting holes are distributed on a 30x50mm standard grid of holes.
Preferably, the first-order constraint mode of the motor suspension bracket is 475Hz, and the first-order constraint mode of the gearbox suspension bracket is 874Hz.
Preferably, the distance A from the centers of the motor suspension support and the suspension cushion mounting holes to the motor suspension support and the motor mounting surface is less than or equal to 140mm, and the distance B from the centers of the motor suspension support and the suspension cushion mounting surface to the centers of the motor suspension support and the motor upper row mounting holes is less than or equal to 170mm.
Preferably, the distance A from the centers of the mounting holes of the gearbox suspension support and the suspension cushion to the centers of the mounting holes of the gearbox suspension support and the gearbox is less than or equal to 140mm, and the distance B from the mounting surfaces of the gearbox suspension support and the suspension cushion to the centers of the mounting holes on the gearbox suspension support and the gearbox is less than or equal to 170mm.
The beneficial effects obtained by the invention are as follows: the motor and the gearbox suspension are both of a two-point horizontal mounting structure, the motor and the gearbox suspension cushion assembly are of a full-surrounding structure and are mounted in the belly of the frame, the motor and the gearbox suspension support are of an L-shaped structure, the side faces of the motor and the gearbox suspension support are connected with mounting holes in the side faces of the motor and the gearbox, and the upper portion of the motor and the gearbox suspension cushion assembly are connected into a whole. The invention overcomes the defects of the prior art and has the following advantages:
1. the lowest point of the suspension system of the motor gearbox assembly is higher than that of the motor gearbox assembly, so that the trafficability of the whole vehicle is not influenced;
2. the motor and the gearbox suspension cushion assembly are both of vertical mounting structures, and the assembly manufacturability is good;
3. the motor and the gearbox suspension bracket are both L-shaped castings, are high in constraint mode, are larger than 400Hz, and have small risk of resonance with the excitation frequency of the motor;
4. the suspension system of the motor assembly of the new energy vehicle has the advantages of simple structure, good reliability, light weight and low cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a motor suspension bracket;
FIG. 3 is a schematic structural view of a transmission suspension bracket;
FIG. 4 is a schematic view of the connection between the motor suspension bracket and the motor suspension cushion assembly;
FIG. 5 is a schematic view of the connection between the transmission suspension bracket and the transmission suspension cushion assembly;
FIG. 6 is a schematic structural diagram of a motor suspension cushion assembly;
FIG. 7 is a dimensional view of a motor suspension bracket or a transmission suspension bracket;
reference numerals are as follows: 1. a motor suspension bracket; 11. a first motor bracket mounting hole; 12. a second motor support; 13. a motor bracket reinforcing rib; 2. the motor is suspended on the cushion assembly; 21. an inner frame mounting hole; 22. an outer bracket mounting hole; 3. a gearbox suspension bracket; 31. a first gearbox bracket mounting hole; 32. a second gearbox bracket mounting hole; 33. a gearbox bracket reinforcing rib; 4. gearbox suspension cushion assembly.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-7, the new energy vehicle motor assembly suspension system structure of the invention comprises a motor suspension support 1, a motor suspension cushion assembly 2, a gearbox suspension support 3 and a gearbox suspension cushion assembly 4, wherein both sides of the motor assembly are fixedly arranged between longitudinal beams through the motor suspension support 1, the motor suspension support 1 is integrally in an L-shaped structure, the side surface of the motor suspension support is fixedly connected with the motor assembly, and the end part of the motor suspension support is fixedly connected to the ventral surface of a longitudinal beam of a vehicle frame through the motor suspension cushion assembly 2;
both sides of the gearbox assembly are fixedly arranged between the longitudinal beams through gearbox suspension supports 3, the gearbox suspension supports 3 are integrally of an L-shaped structure, the side faces are fixedly connected with the gearbox assembly, and the end portions are fixedly connected to the ventral faces of the frame longitudinal beams through gearbox suspension cushion assemblies 4.
The first embodiment is as follows: a new energy vehicle motor assembly suspension system structure comprises a motor suspension support 1, a motor suspension cushion assembly 2, a gearbox suspension support 3 and a gearbox suspension cushion assembly 4, wherein two sides of the motor assembly are fixedly arranged between longitudinal beams through the motor suspension support 1, the motor suspension support 1 is integrally of an L-shaped structure, the side surface of the motor assembly is fixedly connected with the motor assembly, and the end part of the motor assembly is fixedly connected to the ventral surface of a frame longitudinal beam through the motor suspension cushion assembly 2;
both sides of the gearbox assembly are fixedly mounted between the longitudinal beams through the gearbox suspension supports 3, the gearbox suspension supports 3 are integrally of an L-shaped structure, the side faces are fixedly connected with the gearbox assembly, and the end portions are fixedly connected to the ventral surface of the frame longitudinal beam through the gearbox suspension cushion assemblies 4. The motor suspension brackets 1 on the two sides of the motor assembly are consistent in installation height.
Example two: a new energy vehicle motor assembly suspension system structure comprises a motor suspension support 1, a motor suspension cushion assembly 2, a gearbox suspension support 3 and a gearbox suspension cushion assembly 4, wherein two sides of the motor assembly are fixedly arranged between longitudinal beams through the motor suspension support 1, the motor suspension support 1 is integrally of an L-shaped structure, the side surface of the motor suspension support is fixedly connected with the motor assembly, and the end part of the motor suspension support is fixedly connected to the ventral surface of a longitudinal beam of a vehicle frame through the motor suspension cushion assembly 2;
both sides of the gearbox assembly are fixedly arranged between the longitudinal beams through gearbox suspension supports 3, the gearbox suspension supports 3 are integrally of an L-shaped structure, the side faces are fixedly connected with the gearbox assembly, and the end portions are fixedly connected to the ventral faces of the frame longitudinal beams through gearbox suspension cushion assemblies 4. The motor suspension brackets 1 on the two sides of the motor assembly are consistent in installation height. The mounting heights of the gearbox suspension brackets 3 on the two sides of the gearbox assembly are consistent.
Example three: a new energy vehicle motor assembly suspension system structure comprises a motor suspension support 1, a motor suspension cushion assembly 2, a gearbox suspension support 3 and a gearbox suspension cushion assembly 4, wherein two sides of the motor assembly are fixedly arranged between longitudinal beams through the motor suspension support 1, the motor suspension support 1 is integrally of an L-shaped structure, the side surface of the motor suspension support is fixedly connected with the motor assembly, and the end part of the motor suspension support is fixedly connected to the ventral surface of a longitudinal beam of a vehicle frame through the motor suspension cushion assembly 2;
both sides of the gearbox assembly are fixedly arranged between the longitudinal beams through gearbox suspension supports 3, the gearbox suspension supports 3 are integrally of an L-shaped structure, the side faces are fixedly connected with the gearbox assembly, and the end portions are fixedly connected to the ventral faces of the frame longitudinal beams through gearbox suspension cushion assemblies 4. The motor suspension brackets 1 on the two sides of the motor assembly are consistent in installation height. The mounting heights of the gearbox suspension brackets 3 on the two sides of the gearbox assembly are consistent. Motor suspension support 1 is the foundry goods, including first motor support mounting hole 11, motor support strengthening rib 13 and second motor support mounting hole 12, and motor suspension support 1 is through first motor support mounting hole 11 and motor assembly fixed connection, through second motor support mounting hole 12 and 2 fixed connection of motor suspension cushion assembly.
Example four: a new energy vehicle motor assembly suspension system structure comprises a motor suspension support 1, a motor suspension cushion assembly 2, a gearbox suspension support 3 and a gearbox suspension cushion assembly 4, wherein two sides of the motor assembly are fixedly arranged between longitudinal beams through the motor suspension support 1, the motor suspension support 1 is integrally of an L-shaped structure, the side surface of the motor assembly is fixedly connected with the motor assembly, and the end part of the motor assembly is fixedly connected to the ventral surface of a frame longitudinal beam through the motor suspension cushion assembly 2;
both sides of the gearbox assembly are fixedly arranged between the longitudinal beams through gearbox suspension supports 3, the gearbox suspension supports 3 are integrally of an L-shaped structure, the side faces are fixedly connected with the gearbox assembly, and the end portions are fixedly connected to the ventral faces of the frame longitudinal beams through gearbox suspension cushion assemblies 4. The motor suspension brackets 1 on the two sides of the motor assembly are consistent in installation height. The mounting heights of the gearbox suspension brackets 3 on the two sides of the gearbox assembly are consistent. Motor suspension support 1 is the foundry goods, including first motor support mounting hole 11, motor support strengthening rib 13 and second motor support mounting hole 12, and motor suspension support 1 is through first motor support mounting hole 11 and motor assembly fixed connection, through second motor support mounting hole 12 and 2 fixed connection of motor suspension cushion assembly. Gearbox suspension support 3 is the foundry goods, including first gearbox support mounting hole 31, gearbox support strengthening rib 33 and second gearbox support mounting hole 32, and gearbox suspension support 3 is through first gearbox support mounting hole 31 and gearbox assembly fixed connection, through second gearbox support mounting hole 32 and 4 fixed connection of gearbox suspension cushion assembly.
Example five: a new energy vehicle motor assembly suspension system structure comprises a motor suspension support 1, a motor suspension cushion assembly 2, a gearbox suspension support 3 and a gearbox suspension cushion assembly 4, wherein two sides of the motor assembly are fixedly arranged between longitudinal beams through the motor suspension support 1, the motor suspension support 1 is integrally of an L-shaped structure, the side surface of the motor suspension support is fixedly connected with the motor assembly, and the end part of the motor suspension support is fixedly connected to the ventral surface of a longitudinal beam of a vehicle frame through the motor suspension cushion assembly 2;
both sides of the gearbox assembly are fixedly arranged between the longitudinal beams through gearbox suspension supports 3, the gearbox suspension supports 3 are integrally of an L-shaped structure, the side faces are fixedly connected with the gearbox assembly, and the end portions are fixedly connected to the ventral faces of the frame longitudinal beams through gearbox suspension cushion assemblies 4. The motor suspension brackets 1 on the two sides of the motor assembly are consistent in installation height. The mounting heights of the gearbox suspension brackets 3 on the two sides of the gearbox assembly are consistent. Motor suspension support 1 is the foundry goods, including first motor support mounting hole 11, motor support strengthening rib 13 and second motor support mounting hole 12, and motor suspension support 1 is through first motor support mounting hole 11 and motor assembly fixed connection, through second motor support mounting hole 12 and 2 fixed connection of motor suspension cushion assembly. Gearbox suspension support 3 is the foundry goods, including first gearbox support mounting hole 31, gearbox support strengthening rib 33 and second gearbox support mounting hole 32, and gearbox suspension support 3 is through first gearbox support mounting hole 31 and gearbox assembly fixed connection, through second gearbox support mounting hole 32 and 4 fixed connection of gearbox suspension cushion assembly.
Motor suspension cushion assembly 2 is full enclosed structure, including inner frame and outer bracket, and inner frame and outer bracket are the foundry goods, are equipped with inner frame mounting hole 21 on the inner frame, outer bracket mounting hole 22 on the outer bracket, and motor suspension cushion assembly 2 is through inner frame mounting hole 21 and 1 fixed connection of motor suspension support, through outer bracket mounting hole 22 and solebar ventral surface fixed connection.
Example six: a new energy vehicle motor assembly suspension system structure comprises a motor suspension support 1, a motor suspension cushion assembly 2, a gearbox suspension support 3 and a gearbox suspension cushion assembly 4, wherein two sides of the motor assembly are fixedly arranged between longitudinal beams through the motor suspension support 1, the motor suspension support 1 is integrally of an L-shaped structure, the side surface of the motor suspension support is fixedly connected with the motor assembly, and the end part of the motor suspension support is fixedly connected to the ventral surface of a longitudinal beam of a vehicle frame through the motor suspension cushion assembly 2;
both sides of the gearbox assembly are fixedly arranged between the longitudinal beams through gearbox suspension supports 3, the gearbox suspension supports 3 are integrally of an L-shaped structure, the side faces are fixedly connected with the gearbox assembly, and the end portions are fixedly connected to the ventral faces of the frame longitudinal beams through gearbox suspension cushion assemblies 4. The motor suspension brackets 1 on both sides of the motor assembly are installed at the same height. The mounting heights of the gearbox suspension brackets 3 on the two sides of the gearbox assembly are consistent. Motor suspension support 1 is the foundry goods, including first motor support mounting hole 11, motor support strengthening rib 13 and second motor support mounting hole 12, and motor suspension support 1 is through first motor support mounting hole 11 and motor assembly fixed connection, through second motor support mounting hole 12 and 2 fixed connection of motor suspension cushion assembly. The gearbox suspension support 3 is a casting and comprises a first gearbox support mounting hole 31, gearbox support reinforcing ribs 33 and a second gearbox support mounting hole 32, and the gearbox suspension support 3 is fixedly connected with the gearbox assembly through the first gearbox support mounting hole 31 and is fixedly connected with the gearbox suspension cushion assembly 4 through the second gearbox support mounting hole 32.
Motor suspension cushion assembly 2 is full enclosed structure, including inner frame and outer bracket, and inner frame and outer bracket are the foundry goods, are equipped with inner frame mounting hole 21 on the inner frame, outer bracket mounting hole 22 on the outer bracket, and motor suspension cushion assembly 2 is through inner frame mounting hole 21 and 1 fixed connection of motor suspension support, through outer bracket mounting hole 22 and solebar ventral surface fixed connection. The outer bracket mounting holes 22 are distributed on a 30x50mm standard grid of holes.
Example seven: a new energy vehicle motor assembly suspension system structure comprises a motor suspension support 1, a motor suspension cushion assembly 2, a gearbox suspension support 3 and a gearbox suspension cushion assembly 4, wherein two sides of the motor assembly are fixedly arranged between longitudinal beams through the motor suspension support 1, the motor suspension support 1 is integrally of an L-shaped structure, the side surface of the motor suspension support is fixedly connected with the motor assembly, and the end part of the motor suspension support is fixedly connected to the ventral surface of a longitudinal beam of a vehicle frame through the motor suspension cushion assembly 2;
both sides of the gearbox assembly are fixedly arranged between the longitudinal beams through gearbox suspension supports 3, the gearbox suspension supports 3 are integrally of an L-shaped structure, the side faces are fixedly connected with the gearbox assembly, and the end portions are fixedly connected to the ventral faces of the frame longitudinal beams through gearbox suspension cushion assemblies 4. The motor suspension brackets 1 on both sides of the motor assembly are installed at the same height. The mounting heights of the gearbox suspension brackets 3 on the two sides of the gearbox assembly are consistent. Motor suspension support 1 is the foundry goods, including first motor support mounting hole 11, motor support strengthening rib 13 and second motor support mounting hole 12, and motor suspension support 1 is through first motor support mounting hole 11 and motor assembly fixed connection, through second motor support mounting hole 12 and 2 fixed connection of motor suspension cushion assembly. Gearbox suspension support 3 is the foundry goods, including first gearbox support mounting hole 31, gearbox support strengthening rib 33 and second gearbox support mounting hole 32, and gearbox suspension support 3 is through first gearbox support mounting hole 31 and gearbox assembly fixed connection, through second gearbox support mounting hole 32 and 4 fixed connection of gearbox suspension cushion assembly.
Motor suspension cushion assembly 2 is full enclosed structure, including inner frame and outer bracket, and inner frame and outer bracket are the foundry goods, are equipped with inner frame mounting hole 21 on the inner frame, outer bracket mounting hole 22 on the outer bracket, and motor suspension cushion assembly 2 is through inner frame mounting hole 21 and 1 fixed connection of motor suspension support, through outer bracket mounting hole 22 and solebar ventral surface fixed connection. The outer bracket mounting holes 22 are distributed on a 30x50mm standard grid of holes. The first-order constraint mode of the motor suspension bracket 1 is 475Hz, and the first-order constraint mode of the gearbox suspension bracket 3 is 874Hz.
Example eight: a new energy vehicle motor assembly suspension system structure comprises a motor suspension support 1, a motor suspension cushion assembly 2, a gearbox suspension support 3 and a gearbox suspension cushion assembly 4, wherein two sides of the motor assembly are fixedly arranged between longitudinal beams through the motor suspension support 1, the motor suspension support 1 is integrally of an L-shaped structure, the side surface of the motor assembly is fixedly connected with the motor assembly, and the end part of the motor assembly is fixedly connected to the ventral surface of a frame longitudinal beam through the motor suspension cushion assembly 2;
both sides of the gearbox assembly are fixedly arranged between the longitudinal beams through gearbox suspension supports 3, the gearbox suspension supports 3 are integrally of an L-shaped structure, the side faces are fixedly connected with the gearbox assembly, and the end portions are fixedly connected to the ventral faces of the frame longitudinal beams through gearbox suspension cushion assemblies 4. The motor suspension brackets 1 on the two sides of the motor assembly are consistent in installation height. The mounting heights of the gearbox suspension brackets 3 on the two sides of the gearbox assembly are consistent. Motor suspension support 1 is the foundry goods, including first motor support mounting hole 11, motor support strengthening rib 13 and second motor support mounting hole 12, and motor suspension support 1 is through first motor support mounting hole 11 and motor assembly fixed connection, through second motor support mounting hole 12 and 2 fixed connection of motor suspension cushion assembly. Gearbox suspension support 3 is the foundry goods, including first gearbox support mounting hole 31, gearbox support strengthening rib 33 and second gearbox support mounting hole 32, and gearbox suspension support 3 is through first gearbox support mounting hole 31 and gearbox assembly fixed connection, through second gearbox support mounting hole 32 and 4 fixed connection of gearbox suspension cushion assembly.
Motor suspension cushion assembly 2 is full enclosed structure, including inner frame and outer bracket, and inner frame and outer bracket are the foundry goods, are equipped with inner frame mounting hole 21 on the inner frame, outer bracket mounting hole 22 on the outer bracket, and motor suspension cushion assembly 2 is through inner frame mounting hole 21 and 1 fixed connection of motor suspension support, through outer bracket mounting hole 22 and solebar ventral surface fixed connection. The outer bracket mounting holes 22 are distributed on a 30x50mm standard grid of holes. The first-order constraint mode of the motor suspension bracket 1 is 475Hz, and the first-order constraint mode of the gearbox suspension bracket 3 is 874Hz. The distance A from the centers of the motor suspension support 1 and the suspension cushion mounting holes to the motor suspension support and the motor mounting surface is less than or equal to 140mm, and the distance B from the centers of the motor suspension support 1 and the suspension cushion mounting surface to the centers of the motor suspension support and the motor upper row mounting holes is less than or equal to 170mm.
Example nine: a new energy vehicle motor assembly suspension system structure comprises a motor suspension support 1, a motor suspension cushion assembly 2, a gearbox suspension support 3 and a gearbox suspension cushion assembly 4, wherein two sides of the motor assembly are fixedly arranged between longitudinal beams through the motor suspension support 1, the motor suspension support 1 is integrally of an L-shaped structure, the side surface of the motor suspension support is fixedly connected with the motor assembly, and the end part of the motor suspension support is fixedly connected to the ventral surface of a longitudinal beam of a vehicle frame through the motor suspension cushion assembly 2;
both sides of the gearbox assembly are fixedly mounted between the longitudinal beams through the gearbox suspension supports 3, the gearbox suspension supports 3 are integrally of an L-shaped structure, the side faces are fixedly connected with the gearbox assembly, and the end portions are fixedly connected to the ventral surface of the frame longitudinal beam through the gearbox suspension cushion assemblies 4. The motor suspension brackets 1 on the two sides of the motor assembly are consistent in installation height. The mounting heights of the gearbox suspension brackets 3 on the two sides of the gearbox assembly are consistent. Motor suspension support 1 is the foundry goods, including first motor support mounting hole 11, motor support strengthening rib 13 and second motor support mounting hole 12, and motor suspension support 1 is through first motor support mounting hole 11 and motor assembly fixed connection, through second motor support mounting hole 12 and 2 fixed connection of motor suspension cushion assembly. Gearbox suspension support 3 is the foundry goods, including first gearbox support mounting hole 31, gearbox support strengthening rib 33 and second gearbox support mounting hole 32, and gearbox suspension support 3 is through first gearbox support mounting hole 31 and gearbox assembly fixed connection, through second gearbox support mounting hole 32 and 4 fixed connection of gearbox suspension cushion assembly.
Motor suspension cushion assembly 2 is full enclosed structure, including inner frame and outer bracket, and inner frame and outer bracket are the foundry goods, are equipped with inner frame mounting hole 21 on the inner frame, outer bracket mounting hole 22 on the outer bracket, and motor suspension cushion assembly 2 is through inner frame mounting hole 21 and 1 fixed connection of motor suspension support, through outer bracket mounting hole 22 and solebar ventral surface fixed connection. The outer bracket mounting holes 22 are distributed on a 30x50mm standard grid of holes. The first-order constraint mode of the motor suspension bracket 1 is 475Hz, and the first-order constraint mode of the gearbox suspension bracket 3 is 874Hz. The distance A from the centers of the motor suspension support and the suspension cushion mounting holes to the centers of the motor suspension support and the motor mounting surface is less than or equal to 140mm, and the distance B from the centers of the motor suspension support and the suspension cushion mounting surface to the centers of the motor suspension support and the motor upper row mounting holes is less than or equal to 170mm. The distance A from the centers of the mounting holes of the gearbox suspension support and the suspension cushion to the centers of the mounting holes of the gearbox suspension support and the gearbox is less than or equal to 140mm, and the distance B from the centers of the mounting holes on the upper row of the gearbox suspension support and the suspension cushion to the centers of the mounting holes on the gearbox suspension support and the gearbox is less than or equal to 170mm.
In one embodiment, the motor suspension bracket 1 is connected to the motor assembly through bolts and the first motor bracket mounting hole 11, the motor suspension cushion assembly 2 is connected to the ventral surface of the frame through bolts and the outer bracket mounting hole 22, and the motor suspension bracket 1 is connected to the motor suspension cushion assembly 2 as a whole through bolts, the second motor bracket mounting hole 12 and the inner frame mounting hole 21.
Gearbox suspension support 3 passes through the bolt and first gearbox support mounting hole 31 is connected on the gearbox assembly, and gearbox suspension cushion assembly 4 passes through the bolt and the mounting hole connection that corresponds is on the frame ventral surface, and gearbox suspension support 3 passes through the bolt, second gearbox support mounting hole 32 and suspension inner frame mounting hole and is connected as an organic wholely with gearbox suspension cushion assembly 4.
The cushion bracket mounting holes of the motor suspension cushion assembly 2 and the gearbox suspension cushion assembly 4 are distributed on a 30X50mm grid, the suspension cushions of different vehicle types can be universal, and the universality of the motor and gearbox suspension cushion assembly is greatly improved.
The first-order constraint modes of the motor suspension support 1 and the gearbox suspension support 3 are 475Hz and 874Hz respectively, and are both larger than 400Hz, so that the risk that the motor is resonated with the suspension support in a common rotating speed range is avoided (the excitation frequency of the motor in the common rotating speed range is 0-300 Hz, the constraint mode of the gearbox suspension lower pocket beam assembly in the prior art is 80Hz, the excitation frequency of the motor in the common rotating speed range is not avoided, and the resonance risk exists), and the NVH performance of the motor assembly suspension system is improved. The distance from the center of the mounting hole 12 of the motor suspension bracket 1 to the motor suspension bracket and the motor mounting surface is 75.5mm, and the distance from the center of the motor suspension bracket 1 and the motor upper row mounting hole to the motor suspension bracket and the suspension cushion mounting surface is 156.1mm. The distance from the center of the mounting hole 32 of the gearbox suspension bracket 3 to the mounting surface of the gearbox suspension bracket and the gearbox is 134.5mm, and the distance from the center of the mounting hole on the gearbox suspension bracket 3 and the gearbox to the mounting surface of the gearbox suspension bracket and the suspension cushion is 110.7mm.
The motor suspension of the invention is a vertical mounting structure with two point side surfaces connected: the motor suspension support is L type, and the side of L type motor suspension support is directly connected with the suspension connecting hole of motor side, and the upper end and the motor suspension cushion assembly of L type motor suspension support carry out perpendicular connection, and motor suspension cushion assembly installs on the frame ventral surface.
The gearbox suspension is two points of side connection perpendicular mounting structure: the gearbox suspension support is L type, and the side of L type gearbox suspension support is directly connected with the suspension connecting hole of gearbox side, and the upper end and the gearbox suspension cushion assembly of L type gearbox suspension support carry out perpendicular connection, and gearbox suspension cushion assembly installs on the frame ventral surface.
The connecting and mounting holes of the motor, the gearbox suspension cushion assembly and the frame are all designed as standard holes.
The foregoing shows and describes the general principles and principal structural features of the present invention. The present invention is not limited to the above examples, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Here, it should be noted that the description of the above technical solutions is exemplary, the present specification may be embodied in different forms, and should not be construed as being limited to the technical solutions set forth herein. Rather, these descriptions are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Furthermore, the technical solution of the present invention is limited only by the scope of the claims.
The shapes, sizes, ratios, angles, and numbers disclosed to describe aspects of the specification and claims are examples only, and thus are not limited to the details shown. In the following description, when a detailed description of related known functions or configurations is determined to unnecessarily obscure the focus of the present specification and claims, the detailed description will be omitted.
Where the terms "comprising", "having" and "including" are used in this specification, there may be another part or parts unless otherwise stated, and the terms used may generally be singular but may also refer to the plural.
It should be noted that although the terms "first," "second," "top," "bottom," "side," "other," "end," "other end," and the like may be used and used in this specification to describe various components, these components and parts should not be limited by these terms. These terms are only used to distinguish one element or section from another element or section. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, with the top and bottom elements being interchangeable or switchable with one another, where appropriate, without departing from the scope of the present description; the components at one end and the other end may be of the same or different properties to each other.
In describing positional relationships, for example, when positional sequences are described as being "on.. Above", "over.. Below", "below", and "next", unless such words or terms are used as "exactly" or "directly", they may include cases where there is no contact or contact therebetween. If a first element is referred to as being "on" a second element, that does not mean that the first element must be above the second element in the figures. The upper and lower portions of the member will change depending on the angle of view and the change in orientation. Thus, in the drawings or in actual construction, if a first element is referred to as being "on" a second element, it can be said that the first element is "under" the second element and the first element is "over" the second element. In describing temporal relationships, unless "exactly" or "directly" is used, the description of "after", "subsequently", and "before" may include instances where there is no discontinuity between steps. The features of the various embodiments of the present invention may be partially or fully combined or spliced with each other and performed in a variety of different configurations as would be well understood by those skilled in the art. Embodiments of the present invention may be performed independently of each other or may be performed together in an interdependent relationship.
Finally, it should be noted that the above embodiments are merely representative examples of the present invention. It is obvious that the invention is not limited to the above-described embodiments, but that many variations are possible. Any simple modification, equivalent change and modification made to the above embodiments in accordance with the technical spirit of the present invention should be considered to be within the scope of the present invention.

Claims (10)

1. The utility model provides a new forms of energy car motor assembly suspension system structure which characterized in that: the vehicle frame longitudinal beam suspension device comprises a motor suspension support, a motor suspension cushion assembly, a transmission suspension support and a transmission suspension cushion assembly, wherein two sides of the motor assembly are fixedly arranged between longitudinal beams through the motor suspension support;
gearbox assembly both sides are all passed through gearbox suspension support fixed mounting is between the longeron, gearbox suspension support wholly is L type structure, side and gearbox assembly fixed connection, and the tip passes through gearbox suspension cushion assembly fixed connection on the solebar ventral surface.
2. The new energy vehicle motor assembly suspension system structure of claim 1, characterized in that: and the mounting heights of the motor suspension supports on the two sides of the motor assembly are consistent.
3. The new energy vehicle motor assembly suspension system structure of claim 1, characterized in that: the mounting heights of the gearbox suspension supports on the two sides of the gearbox assembly are consistent.
4. The new energy vehicle motor assembly suspension system structure of claim 1, characterized in that: the motor suspension support is a casting and comprises a first motor support mounting hole, motor support reinforcing ribs and a second motor support mounting hole, and the motor suspension support is fixedly connected with a motor assembly through the first motor support mounting hole and the second motor support mounting hole and is fixedly connected with a motor suspension cushion assembly through the second motor support mounting hole.
5. The new energy vehicle motor assembly suspension system structure of claim 1, characterized in that: gearbox suspension support is the foundry goods, including first gearbox support mounting hole, gearbox support strengthening rib and second gearbox support mounting hole, gearbox suspension support passes through first gearbox support mounting hole and gearbox assembly fixed connection, through second gearbox support mounting hole and gearbox suspension cushion assembly fixed connection.
6. The new energy vehicle motor assembly suspension system structure of claim 1, characterized in that: motor suspension cushion assembly is full enclosed structure, including inner frame and outer bracket, inner frame and outer bracket are the foundry goods, be equipped with the inner frame mounting hole on the inner frame, outer bracket mounting hole on the outer bracket, motor suspension cushion assembly passes through inner frame mounting hole and motor suspension support fixed connection, through outer bracket mounting hole and solebar ventral surface fixed connection.
7. The new energy vehicle motor assembly suspension system structure of claim 6, characterized in that: the second outer bracket mounting holes are distributed on a 30x50mm standard grid of holes.
8. The new energy vehicle motor assembly suspension system structure of claim 1, characterized in that: the first-order constraint mode of the motor suspension support is 475Hz, and the first-order constraint mode of the gearbox suspension support is 874Hz.
9. The new energy vehicle motor assembly suspension system structure of claim 1, characterized in that: the distance A from the centers of the motor suspension support and the suspension cushion mounting holes to the centers of the motor suspension support and the motor mounting surface is less than or equal to 140mm, and the distance B from the centers of the motor suspension support and the suspension cushion mounting surface to the centers of the motor suspension support and the motor upper row mounting holes is less than or equal to 170mm.
10. The new energy vehicle motor assembly suspension system structure of claim 1, characterized in that: the distance A from the centers of the mounting holes of the gearbox suspension support and the suspension cushion to the centers of the mounting holes of the gearbox suspension support and the gearbox is not more than 140mm, and the distance B from the centers of the mounting holes on the upper row of the gearbox suspension support and the suspension cushion to the centers of the mounting holes on the gearbox suspension support and the gearbox is not more than 170mm.
CN202211066666.8A 2022-08-31 2022-08-31 New forms of energy car motor assembly suspension system structure Pending CN115402077A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211066666.8A CN115402077A (en) 2022-08-31 2022-08-31 New forms of energy car motor assembly suspension system structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211066666.8A CN115402077A (en) 2022-08-31 2022-08-31 New forms of energy car motor assembly suspension system structure

Publications (1)

Publication Number Publication Date
CN115402077A true CN115402077A (en) 2022-11-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211066666.8A Pending CN115402077A (en) 2022-08-31 2022-08-31 New forms of energy car motor assembly suspension system structure

Country Status (1)

Country Link
CN (1) CN115402077A (en)

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