Relay Buffer Assembly for High-Voltage Distribution Box Noise
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Solution Overview
Problem
New energy vehicle high-voltage distribution boxes experience significant noise due to the operation of relays, which negatively impacts user experience.
Innovation Solution
A relay design incorporating a buffer assembly and sound absorbing elements to mitigate vibration and noise, featuring a buffer member and support member to reduce mechanical stress and a sound absorbing element to dissipate sound energy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If relays are opened and closed for high-voltage switching, then circuit control function is improved, but noise is generated affecting user experience
Solution Approach 1:
A buffer assembly is introduced as an intermediary component between the relay and the battery distribution box. The buffer assembly includes a buffer member that contacts the relay and a support member that contacts the battery distribution box, creating a mechanical intermediary that absorbs vibration and reduces noise transmission while allowing the relay to perform its switching function
Solution Approach 2:
The invention converts the harmful vibration and noise generated by relay operation into a beneficial effect by using the buffer member to absorb and dissipate this energy. The buffer member transforms the mechanical energy of vibration into heat through friction and material deformation, thereby reducing the noise that would otherwise be transmitted to the battery distribution box
2Object-generated harmful factors
If buffer assembly is added to reduce noise, then user experience is improved, but device complexity increases
Solution Approach 1:
The buffer assembly is segmented into distinct functional components: a buffer member for absorbing vibration and a support member for providing structural support and mounting. This segmentation allows each component to be optimized for its specific function while maintaining overall simplicity of the overall structure
Solution Approach 2:
The buffer member is designed as a flexible component that can deform elastically to absorb vibration. This flexible structure provides effective noise reduction while maintaining a compact and simple form factor, avoiding the need for complex rigid mechanical structures
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces noise and improves user experience by buffering mechanical vibrations and absorbing sound, maintaining a simple structural design without altering the relay's core components.
Implementation Method 1
the buffer assembly is arranged on the base, and/or mounted on an outside of the housing, and configured to buffer the force generated by an action of the movable contact
Implementation Method 2
a sound absorbing element to dissipate sound energy
Data Source
AI summary
The disclosure relates to a relay, a battery distribution box and a battery pack. The relay includes a relay body and a buffer assembly. The relay body includes a housing and a stationary contact, a movable contact and a coil assembly located inside the housing. The coil assembly is abler to drive the movable contact to move toward or away from the stationary contact to make the movable contact to contact or disconnect from the stationary contact. The housing is fixed through the base, the buffer assembly is mounted on the base, and/or is mounted on the outside of the housing, and configured to buffer the force generated by the action of the movable contact.