Controller and upper cover plate NVH performance optimization structure

A technology that optimizes structure and controller, applied in electrical components, chassis/cabinet/drawer parts, electrical equipment shell/cabinet/drawer, etc., can solve problems such as poor NVH performance, prolong service life, increase Stable, modal effect

Pending Publication Date: 2022-02-15
JEE AUTOMATION EQUIP SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem of poor overall NVH performance of the upper cover plate of the controller in the prior art, and provide an optimized structure for the upper cover. The mode of the cover plate is significantly improved, effectively reducing the structural resonance response and radiation noise, and improving the overall NVH performance of the electric drive

Method used

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  • Controller and upper cover plate NVH performance optimization structure
  • Controller and upper cover plate NVH performance optimization structure
  • Controller and upper cover plate NVH performance optimization structure

Examples

Experimental program
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Embodiment Construction

[0040] figure 1 It is a structural schematic diagram of the NVH performance optimization structure of the upper cover plate of a controller proposed by the present application; figure 2 is the schematic diagram of the cross-sectional structure of the shell; image 3 It is a schematic diagram of the connection structure of the transfer stud and the bolt. A NVH performance optimization structure of an upper cover of a controller may include: a controller 1 , an upper cover 2 , a groove 3 , a fixing component, a housing 9 , and an installation area.

[0041] The groove 3 is located on the upper cover plate 2, the installation area is located in the groove 3, the fixed component is installed in the installation area, and the installation area is set to be a rectangle, a circle center, an ellipse, etc., and the center position of the installation area is the same as the upper cover plate The center positions of 2 coincide, so that the lowest modal position of the upper cover pla...

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PUM

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Abstract

The invention relates to the field of controllers, and discloses a controller and an upper cover optimization structure, and the optimization structure comprises a groove which is formed in the upper surface of an upper cover plate; a plurality of installation areas, all located in the groove, the center of one installation area coinciding with the center position of the upper cover plate, and the width of each installation area being the same as the width of the groove; and a plurality of fixing assemblies, respectively positioned in different mounting areas and connected with the shell of the controller. According to the invention, when the upper cover plate of the controller causes resonance, the vibration amplitude is greatly reduced, the generated radiation noise is reduced, the influence on the NVH performance of the electric drive system can be ignored, and thus the upper cover plate is effectively protected.

Description

technical field [0001] The invention relates to a controller, in particular to a controller and an optimized structure of an upper cover. Background technique [0002] As we all know, the modal frequency of the thin-walled body structure is low. When the electric drive system is running, when the modal frequency of the controller’s top cover is close to the external excitation frequency of the electric drive, it will cause a resonance band on the top cover and generate radiation noise. The NVH (Noise, Vibration, Harshness, vibration and acoustic roughness, NVH for short) performance of the system has a great influence. Long-term resonance problems will cause resonance fatigue in the controller structure, which will affect the structural fatigue life and affect the safe operation of the controller. , so it is necessary to consider the NVH performance when designing the structure of the upper cover plate of the controller, increase the modal frequency of the cover plate withou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K5/02H05K5/03
CPCH05K5/0217H05K5/03
Inventor 刘蕾张伟吴鸿信杨洋
Owner JEE AUTOMATION EQUIP SHANGHAI CO LTD
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