A vibration-damping seat for an electric motor controller

Abstract

The utility model discloses a kind of vibration reduction seats for motor controller, including bottom plate, the upper surface of the bottom plate integrally formed with rectangular shell, the side below of the shell is threadedly connected with air cock, the inside sliding connection of the shell has down pressure plate, the upper surface of the down pressure plate is installed with multiple connecting columns, form multiple damping system, by spring elasticity buffer, rubber block and rubber pad vibration absorption, the synergistic effect of shell internal pressure regulation damping, overall weaken multi-frequency, multi-direction vibration, effectively avoid controller internal precision spare loose, wear or failure, guarantee work stability.Integral structure is compact integration, bottom plate and shell integrally formed, connecting rod and spring layout are reasonable, small and exquisite, adapt to vehicle chassis, equipment inside etc. Compact installation space, solve the problem of poor compatibility of traditional columnar damper.

Description

Technical Field

[0001] This utility model relates to the field of motor controller technology, specifically to a vibration damping mount for a motor controller. Background Technology

[0002] As the core control unit of power systems in new energy vehicles and industrial equipment, the stability of the motor controller directly determines the overall operating efficiency and service life of the machine. During vehicle operation or equipment operation, the powertrain, road bumps, and mechanical transmission will generate multi-frequency and multi-directional vibrations. If these vibrations are directly transmitted to the motor controller, they will cause a series of problems: on the one hand, they will cause the precision components such as circuit boards, capacitors, and connectors inside the controller to loosen and wear, and even cause faults such as solder joint detachment and short circuits, which may lead to controller failure in severe cases.

[0003] The existing installation methods for motor controllers generally have obvious defects: the traditional rigid bolt fixing method lacks a buffer structure, and the vibration transmission efficiency is extremely high, which cannot completely block the impact of vibration on the controller; although the column-shaped shock absorbers commonly found on the market have a certain vibration reduction effect, they are generally large in size and have a bulky structure, while the installation space in vehicle chassis, equipment interiors, etc. is often compact and limited, resulting in poor installation compatibility and difficulty in adapting to complex layout requirements.

[0004] Other solutions reduce vibration by adding a single damping pad at the bolt connection, but this method can only buffer local contact points, has a single damping path and a limited absorption range, and cannot cope with complex vibration scenarios with wide frequency and large amplitude.

[0005] As new energy vehicles develop towards lightweighting and integration, and industrial equipment demands increasingly higher control precision, the shortcomings of existing vibration reduction solutions in terms of spatial adaptability, vibration reduction efficiency, and durability are becoming increasingly apparent. There is an urgent need for a motor controller vibration reduction device with a compact structure, comprehensive vibration reduction effect, and strong adaptability to solve the above-mentioned technical pain points.

[0006] Therefore, a vibration damping mount for motor controllers is proposed. Summary of the Invention

[0007] The purpose of this invention is to provide a vibration damping base for a motor controller to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a vibration damping base for a motor controller, comprising a base plate, a rectangular shell integrally formed on the upper surface of the base plate, an air nozzle threadedly connected to one side of the shell, a lower pressure plate slidably connected inside the shell, a plurality of connecting posts mounted on the upper surface of the lower pressure plate, and a top plate for mounting the motor controller mounted on the top of the plurality of connecting posts.

[0009] Connecting rods are symmetrically installed at the four corners of the upper surface of the base plate. The tops of the four connecting rods pass through the four corners of the top plate and are fitted with fixing nuts. Springs are sleeved on the outside of the connecting rods.

[0010] Preferably, the air nozzle is a hollow bolt, and the end of the air nozzle near the inner side of the housing is at the same horizontal plane as the inner wall of the housing.

[0011] Preferably, the edge of the lower pressure plate is integrally formed with a folded edge, and a sealing ring is provided between the folded edge and the inner sidewall of the housing.

[0012] Preferably, a second rubber pad is attached to the upper surface of the housing, and a first rubber pad is attached to the upper surface of the top plate.

[0013] Preferably, the base plate is bolted to the vehicle sheet metal, and the top plate is bolted to the motor controller.

[0014] Preferably, rubber blocks are installed between the plurality of connecting columns and the top plate.

[0015] Compared with existing technologies, the advantages of this utility model are: it forms a multi-stage vibration damping system, comprehensively weakening multi-frequency and multi-directional vibrations through the synergistic effect of spring elastic buffering, rubber block and rubber pad vibration absorption, and internal air pressure regulation vibration damping, effectively preventing loosening, wear, or failure of precision components inside the controller, and ensuring operational stability. The overall structure is compact and integrated, with the base plate and housing integrally molded, and the connecting rods and springs rationally arranged. Its small size makes it suitable for compact installation spaces such as vehicle chassis and equipment interiors, solving the problem of poor compatibility of traditional columnar shock absorbers. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a side view of the structure of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0019] In the diagram: 1. Base plate; 2. Housing; 3. Connecting rod; 4. Spring; 5. Top plate; 6. First rubber pad; 7. Air nozzle; 8. Connecting column; 9. Second rubber pad; 10. Folded edge; 11. Sealing ring; 12. Fixing nut; 13. Lower pressure plate; 14. Rubber block. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Please see Figure 1-3 This utility model provides a technical solution: a vibration damping seat for a motor controller, including a base plate 1, which is fixed to the vehicle sheet metal by bolts, and a rectangular shell 2 integrally formed on its upper surface; an air nozzle 7 is threadedly connected to the lower side of one side of the shell 2, and a lower pressure plate 13 is slidably connected inside the shell 2; a plurality of connecting posts 8 are evenly installed on the upper surface of the lower pressure plate 13, and a top plate 5 for supporting and fixing the motor controller is installed at the top of the plurality of connecting posts 8.

[0022] Connecting rods 3 are symmetrically fixed at the four corners of the upper surface of the base plate 1. The top ends of the four connecting rods 3 pass through the through holes opened at the four corners of the top plate 5, and the top ends of the connecting rods 3 are threaded with fixing nuts 12 for limiting the top plate 5. A spring 4 is sleeved on the outside of the connecting rods 3 between the base plate 1 and the top plate 5. The spring 4 can elastically extend and retract along the axis of the connecting rod 3 to buffer vibration.

[0023] like Figure 3 As shown: The air nozzle 7 is a hollow bolt. The end of the air nozzle 7 near the inner side of the housing 2 is flush with the inner wall of the housing 2. This design can prevent the protruding end of the air nozzle 7 from interfering with the sliding of the pressure plate 13, and at the same time facilitates the inflation or deflation of air into the housing 2 through the air nozzle 7 to adjust the air pressure inside the housing to assist in vibration reduction. At the same time, air nozzles 7 with different inner diameters can be replaced according to specific needs.

[0024] like Figure 3 As shown: The lower pressure plate 13 has an integrally formed upward bent edge 10 on its edge. A sealing ring 11 is embedded between the bent edge 10 and the inner wall of the housing 2. The sealing ring 11 can enhance the sealing between the housing 2 and the lower pressure plate 13, prevent gas leakage inside the housing, and ensure the stability of air pressure vibration reduction.

[0025] like Figure 2 and Figure 3 As shown: A second rubber pad 9 is attached to the upper surface of the housing 2, and a first rubber pad 6 is attached to the upper surface of the top plate 5. The first rubber pad 6 can buffer the vibration and impact between the motor controller and the top plate 5, and the second rubber pad 9 can prevent the top plate 5 from directly colliding with the housing 2, thus providing double protection for the components from damage.

[0026] like Figure 1 As shown: The top plate 5 is detachably fixed to the motor controller by bolts. This connection method facilitates the installation, disassembly and maintenance of the motor controller, while ensuring the connection is firm and preventing loosening due to vibration.

[0027] like Figure 3 As shown: Rubber blocks 14 are installed between the top of multiple connecting columns 8 and the lower surface of the top plate 5. The rubber blocks 14 have elastic deformation capabilities and can absorb the vibration energy transmitted by the connecting columns 8, further weakening the transmission of vibration to the top plate 5 and the motor controller.

[0028] Working principle: The motor controller is fixed to the first rubber pad 6 of the top plate 5 by bolts. When vibration occurs, the first rubber pad 6 first absorbs the vibration impact between the controller and the top plate 5. The vibration is transmitted through the top plate 5 to the rubber block 14 at the top of the connecting column 8. The rubber block 14 further weakens the vibration energy through elastic deformation.

[0029] Meanwhile, the top plate 5 is displaced up and down along the connecting rod 3 due to vibration, and the spring 4 sleeved on the outside of the connecting rod 3 extends and contracts axially accordingly, using elastic force to buffer the vibration amplitude of the top plate 5; the air pressure in the housing 2 is pre-adjusted to the appropriate value through the air nozzle 7, and the lower pressure plate 13 slides synchronously with the vibration. The change in air pressure in the housing and the sliding cooperation of the lower pressure plate 13 form an air pressure damping effect. The sealing ring 11 ensures the sealing of the housing 2 and avoids air pressure leakage from affecting the damping effect.

[0030] When the displacement of the top plate 5 is large, its lower surface contacts the second rubber pad 9 on the upper surface of the housing 2. The second rubber pad 9 can prevent the two from colliding directly and at the same time help absorb residual vibration. Finally, the vibration after being treated by the multiple vibration reduction structure is transmitted to the bottom plate 1, which is fixed to the vehicle sheet metal by bolts, to achieve efficient vibration reduction protection for the motor controller.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vibration damping base for a motor controller, comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is integrally formed with a rectangular shell (2). A gas nozzle (7) is threadedly connected to the lower side of one side of the shell (2). A lower pressure plate (13) is slidably connected inside the shell (2). Multiple connecting posts (8) are installed on the upper surface of the lower pressure plate (13). A top plate (5) for installing a motor controller is installed at the top of the multiple connecting posts (8). Connecting rods (3) are symmetrically installed at the four corners of the upper surface of the base plate (1). The tops of the four connecting rods (3) pass through the four corners of the top plate (5) and are fitted with fixing nuts (12). Springs (4) are sleeved on the outside of the connecting rods (3).

2. The vibration damping base for a motor controller according to claim 1, characterized in that: The air nozzle (7) is a hollow bolt, and the end of the air nozzle (7) near the inner side of the housing (2) is at the same level as the inner wall of the housing (2).

3. A vibration damping base for a motor controller according to claim 1, characterized in that: The edge of the lower pressure plate (13) is integrally formed with a folded edge (10), and a sealing ring (11) is provided between the folded edge (10) and the inner wall of the housing (2).

4. A vibration damping base for a motor controller according to claim 1, characterized in that: The upper surface of the housing (2) is fitted with a second rubber pad (9), and the upper surface of the top plate (5) is fitted with a first rubber pad (6).

5. A vibration damping base for a motor controller according to claim 1, characterized in that: The base plate (1) is bolted to the vehicle sheet metal, and the top plate (5) is bolted to the motor controller.

6. A vibration damping base for a motor controller according to claim 1, characterized in that: Rubber blocks (14) are installed between the multiple connecting columns (8) and the top plate (5).

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