A rear mount for automotive motors

Abstract

This utility model provides a rear suspension mount for an automotive motor, comprising two separate suspension components. Each component includes an inner core (1) with a shaft hole (101) and an outer tube (2). Rubber (4) is vulcanized and fixed between the inner core (1) and the outer tube (2). A bracket (3) is fixedly connected to one end of the outer tube (2). The ends of the two suspension components away from the bracket (3) can be spliced ​​together. The inner cores (1) of the two suspension components can be fixedly connected to each other through a first connector. This rear suspension mount for an automotive motor is divided into two parts and can be fixed to the vehicle frame and the motor respectively, effectively meeting the customer's functional requirements for quick disassembly and assembly of this part, significantly simplifying the installation process and improving assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automotive powertrain mounting technology, and more specifically to a rear mounting for an automotive motor. Background Technology

[0002] In the powertrain systems of modern transportation vehicles such as new energy vehicles and hybrid vehicles, the drive motor, as a core power output component, directly affects the vehicle's ride comfort, safety, and NVH (noise, vibration, and harshness) performance due to its installation stability. The rear mount of the drive motor, as a crucial connection and buffer component, primarily serves to achieve a flexible connection between the drive motor and the vehicle frame. Through its own elastic deformation, it absorbs the vibrations and impacts generated during motor operation, preventing vibration transmission to the frame and body. Simultaneously, it fixes the motor's mounting position, ensuring accurate power transmission.

[0003] In existing technologies, the rear mount of the drive motor generally adopts an integral structure design, that is, the core components such as the mount body, connecting bracket, and buffer assembly are assembled into an inseparable unit before leaving the factory. During the automobile assembly line or after-sales maintenance process, the operator needs to align this integral mount unit with the mounting interface on the automobile frame and the connection end face of the drive motor at the same time, and complete the one-time fixation with bolts and other fasteners.

[0004] However, this unibody structural design has significant technical drawbacks: First, the unibody suspension is large in size and weight, requiring operators to precisely control the spatial posture of the suspension during installation while aligning it with multiple mounting holes on the frame and motor. This is difficult for a single person to operate and often requires the cooperation of multiple people, increasing labor costs. Second, the rigid connection of the entire suspension during installation results in a very low tolerance for hole alignment errors. Once the initial positioning is off, the suspension position needs to be repeatedly adjusted, extending the assembly time of a single vehicle. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a rear mount for an automotive motor, which is divided into two parts and can be fixed to the vehicle frame and the motor respectively, effectively meeting the customer's functional requirements for quick disassembly and assembly of the part, significantly simplifying the installation process and improving assembly efficiency.

[0006] The technical solution of this utility model is to provide a rear suspension for an automotive motor, comprising two suspension components. Each suspension component includes an inner core with a shaft hole and an outer tube. Rubber is vulcanized and fixed between the inner core and the outer tube. A bracket is fixedly connected to one end of the outer tube. The ends of the two suspension components away from the bracket can be spliced ​​together. The inner cores of the two suspension components can be fixedly connected to each other through a first connector.

[0007] Compared with the prior art, the rear suspension mount for automotive motors of this utility model has the following advantages: by setting two splicable suspension parts, each suspension part has an inner core, an outer tube, and a vulcanized rubber structure. One end of the outer tube is connected to a bracket, and the inner core can be fixed through a first connector. It can be firmly fixed to the vehicle frame and the motor respectively, which not only ensures the connection stability and buffer performance of the suspension, but also realizes the structure of disassembly and assembly of the parts. This part realizes the function of quick disassembly and assembly, significantly simplifies the installation process, improves the assembly efficiency, and solves the problem of cumbersome and inefficient assembly of the existing integrated rear suspension mount.

[0008] As an improvement, through holes are provided on both sides of the shaft hole on the inner core, and the two suspension components can be fixedly connected by a second connector through corresponding through holes. With this structure, the fixed connection between the through holes is achieved through the second connector, which further enhances the connection stability of the two suspension components after splicing, and ensures the overall structural strength and load-bearing capacity of the suspension.

[0009] As an improvement, the bracket has a fitting hole in the middle that matches one end of the outer tube. The bracket is fitted onto the end of the outer tube, and the inner wall of the fitting hole is welded and fixed to the outer wall of the outer tube. This structure further improves the connection strength and structural reliability between the bracket and the outer tube, ensuring that the bracket is not prone to loosening or deformation under long-term conditions of motor vibration and load.

[0010] As an improvement, the bracket is provided with an axially extending connecting piece on one side. The shape of the connecting piece matches the outer wall of the outer tube. The connecting piece is attached to the outside of the outer tube and welded to the outer wall of the outer tube for fixation. This structure further increases the contact area between the bracket and the outer tube, improving the sealing and load-bearing stability of the connection. This makes the suspension less prone to displacement or damage when subjected to long-term motor vibration and working loads, thus strengthening the overall structural strength of the suspension.

[0011] As an improvement, the bracket has multiple grooves on one side of its end face near the outer tube, and the bottom of each groove has a connecting hole. This structure significantly improves the fit between the bracket and the frame or motor by utilizing the positioning function of the grooves, ensuring precise positioning and a tight fit during installation, further enhancing assembly efficiency and connection stability. Simultaneously, the connecting holes at the bottom of the grooves provide a stable fixing point, preventing the suspension from loosening under long-term vibration and load.

[0012] As an improvement, the inner core is a rectangular tube with protrusions at two opposite corners. Buffer holes are provided in the rubber between the protrusions and the inner wall of the outer tube. A stop block is provided on the inner wall opposite the protrusions, and the stop block is positioned opposite the protrusions. This structure optimizes the suspension's cushioning and vibration damping performance. The buffer holes enhance the elastic deformation space of the rubber, and the relative arrangement of the protrusions and stop blocks creates a limiting buffer under severe motor vibration or emergency conditions, effectively absorbing impact energy and limiting excessive deformation.

[0013] As an improvement, the shaft hole is an elliptical hole. This structure further enhances the ease and efficiency of assembly and disassembly, and can also accommodate slight displacement or deformation during motor operation, reducing stress concentration. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the rear suspension of the automobile motor according to this utility model.

[0015] Figure 2 This is a three-dimensional structural diagram of the rear suspension of the automobile motor of this utility model from another angle.

[0016] Figure 3 This is a cross-sectional view of the rear suspension of the automotive motor according to this utility model.

[0017] Figure 4 This is a schematic diagram of the automotive motor rear suspension structure in use according to this utility model.

[0018] As shown in the figure: 1. Inner core, 101. Shaft hole, 102. Protrusion, 103. Through hole, 2. Outer tube, 3. Bracket, 301. Fitting hole, 302. Connecting piece, 303. Connecting hole, 304. Groove, 4. Rubber, 401. Buffer hole, 402. Impact block, 403. Flat surface. Detailed Implementation

[0019] To better understand this application, various aspects of this application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of this application and are not intended to limit the scope of this application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0020] In the accompanying drawings, the thickness, size, and shape of the objects have been slightly exaggerated for illustrative purposes. The drawings are for illustrative purposes only and are not drawn to scale.

[0021] It should also be understood that the terms "comprising," "having," "including," and "containing," when used in this specification, indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof. Furthermore, when expressions such as "...at least one" appear after a list of listed features, they modify the entire listed feature, not individual elements in the list.

[0022] like Figures 1 to 4 As shown, this application discloses a rear mount for an automotive motor, comprising two separate mount components.

[0023] The suspension unit includes an inner core 1 and an outer tube 2. The inner core 1 has a shaft hole 101, which is elliptical in shape. The inner core 1 is installed inside the outer tube 2, and rubber 4 is vulcanized and fixed between the inner core 1 and the outer tube 2. The ends of the two suspension units away from the bracket 3 can be spliced ​​together. The inner cores 1 of the two suspension units can be fixedly connected by a first connector.

[0024] A bracket 3 is fixedly connected to one end of the outer tube 2. The bracket 3 has a fitting hole 301 in its middle that matches one end of the outer tube 2. The bracket 3 is fitted over the end of the outer tube 2, and the inner wall of the fitting hole 301 is welded to the outer wall of the outer tube 2. An axially extending connecting piece 302 is provided on one side of the bracket 3. The shape of the connecting piece 302 matches the outer wall of the outer tube 2. The connecting piece 302 is attached to the outside of the outer tube 2 and welded to the outer wall of the outer tube 2. Multiple symmetrical connecting holes 303 are provided on both sides of the bracket 3. Multiple grooves 304 are provided on the end face of the bracket 3 near the end of the outer tube 2, and the bottom of each groove 304 has a connecting hole 303. In this specific embodiment, two connecting holes 303 are provided on each side of the bracket 3.

[0025] The inner core 1 is a rectangular tube with protrusions 102 at two opposite corners. A buffer hole 401 is provided on the rubber 4 between the protrusions 102 and the inner wall of the outer tube 2. A stop block 402 is provided on the inner wall of the buffer hole 401 opposite to the protrusions 102. The stop block 402 is positioned opposite the protrusions 102, and the end of the protrusion 102 near the stop block 402 is a flat surface 403. Through holes 103 are provided on both sides of the shaft hole 101 on the inner core 1, and the two suspended parts can be fixedly connected by a second connector.

[0026] When using the rear suspension mount for the automotive motor of this application, firstly, align the two separate suspension units with the corresponding mounting points of the vehicle frame and motor through the connecting holes 303 on both sides of the bracket 3 and the bottom of the groove 304, and use bolts to complete the initial fixation. Then, splice and attach the ends of the two suspension units away from the bracket 3, and use the through holes 103 on both sides of the shaft hole 101 of the inner core 1, in conjunction with the second connector and the first connector between the inner core 1, to achieve a stable splicing of the two, so that the entire suspension forms a complete load-bearing structure, and the installation is completed. When disassembling, remove the first connector, the second connector and the fixing bolts on the bracket 3 in sequence, and the two suspension units can be removed from the vehicle frame and the motor respectively, achieving quick disassembly.

[0027] This utility model provides a rear mount for an automotive motor, which consists of two detachable mount parts that can be fixed to the vehicle frame and the motor respectively. This effectively meets the customer's requirements for quick disassembly and assembly of the part, simplifies the installation process, and improves assembly efficiency. At the same time, the vulcanized rubber 4 between the inner core 1 and the outer tube 2, together with the buffer hole 401, the impact block 402, and the protrusion 102 structure, ensures excellent buffering and vibration reduction performance and impact resistance.

[0028] The above are merely specific embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Any modifications or equivalent substitutions to this utility model without departing from its spirit and scope should be covered within the protection scope of the claims of this utility model.

Claims

1. A rear mount for an automotive motor, characterized in that: It includes two suspension components, each of which includes an inner core (1) with a shaft hole (101) and an outer tube (2). Rubber (4) is vulcanized and fixed between the inner core (1) and the outer tube (2). A bracket (3) is fixedly connected to one end of the outer tube (2). The ends of the two suspension components away from the bracket (3) can be spliced ​​together. The inner cores (1) of the two suspension components can be fixedly connected to each other through a first connector.

2. The rear mount for an automotive motor according to claim 1, characterized in that: The inner core (1) is provided with through holes (103) on both sides of the shaft hole (101), and the two suspended parts can be fixedly connected by a second connector.

3. The rear mount for an automotive motor according to claim 1, characterized in that: The bracket (3) has a fitting hole (301) in the middle that matches one end of the outer tube (2). The bracket (3) is fitted outside the end of the outer tube (2), and the inner wall of the fitting hole (301) is welded and fixed to the outer wall of the outer tube (2).

4. The rear mount for an automotive motor according to claim 3, characterized in that: The bracket (3) has an axially extending connecting piece (302) on one side. The shape of the connecting piece (302) matches the outer wall of the outer tube (2). The connecting piece (302) is attached to the outer side of the outer tube (2) and is welded and fixed to the outer wall of the outer tube (2).

5. The rear mount for an automotive motor according to claim 1, characterized in that: The bracket (3) has multiple grooves (304) on one side of the end face near the outer tube (2), and the bottom of the groove (304) has a connecting hole (303).

6. The rear mount for an automotive motor according to claim 1, characterized in that: The inner core (1) is a rectangular tube with protrusions (102) at two opposite corners. A buffer hole (401) is provided on the rubber (4) between the protrusion (102) and the inner wall of the outer tube (2). A bumper (402) is provided on the inner wall of the buffer hole (401) opposite to the protrusion (102). The bumper (402) is positioned opposite to the protrusion (102). The end of the protrusion (102) near the bumper (402) is a flat surface (403).

7. The rear mount for an automotive motor according to claim 1, characterized in that: The shaft hole (101) is an elliptical hole.

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