Integral Battery Pack Seal Member for Contaminant Isolation

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Solution Overview

Problem

Conventional battery pack designs in electronic devices, such as X-ray image receptors, often experience improper sealing due to the degradation of O-ring gaskets over time, leading to contaminant ingress and performance deterioration.

Innovation Solution

Integration of an integral sealing gasket with the battery pack, which can be adhered or removably attached, to seal the battery pack directly to the device housing, preventing contaminants like water, cleaners, and dust from entering the battery bay.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If O-ring gaskets are used to seal the receiving module, then sealing capability is improved, but reliability deteriorates over time due to gasket degradation

Engineering Contradiction:
Improvesealing capabilityVSAvoidservice life of gasket
Core Design Contradiction:
ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent removes the O-ring gasket from the sealing system entirely. Instead of using a separate gasket component that degrades over time, the sealing function is integrated directly into the lid structure through a seal groove and seal member configuration, eliminating the reliability issue of gasket degradation.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The sealing function is merged with the lid structure itself. The lid includes an integrated seal groove and seal member arrangement, combining the structural support and sealing functions into a single integrated component rather than separate parts.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of operation

If a removable lid with O-ring gasket is used, then ease of battery installation is improved, but device complexity increases due to additional sealing components

Engineering Contradiction:
Improvebattery installationVSAvoidsealing mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent extracts the separate O-ring gasket component from the system. The sealing function is achieved through the lid's integrated seal groove and seal member, reducing the number of parts and simplifying the overall structure while maintaining ease of battery installation and removal.

Inventive Principle:
Principle #2Taking out (Extraction)

3Object-affected harmful factors

If O-ring gaskets are used for sealing, then contamination prevention is improved, but manufacturing precision requirements increase due to proper gasket installation

Engineering Contradiction:
Improvecontaminant ingressVSAvoidgasket installation precision
Core Design Contradiction:
Object-affected harmful factorsVSManufacturing precision

Solution Approach 1:

The sealing function is merged into the lid structure with an integrated seal groove. This integration ensures consistent positioning and reduces the need for high-precision separate gasket installation, while the seal member configuration provides reliable contamination prevention.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS9269935B2Battery pack with integral seal member and electronic device including the same
Publication Date: 2016.02.23 VAREX IMAGING CORP
  • US9269935B2 patent drawing
  • US9269935B2 patent drawing
  • US9269935B2 patent drawing

AI summary

An electronic device employs a seal member to seal a battery pack to a housing member to prevent contaminants from entering into a battery bay. The electronic device includes a housing member having an exterior surface a portion of which defines a recess, an electronic assembly contained inside the housing member, and an battery pack received in the recess in the exterior surface of the housing member and electrically connected to the electronic assembly inside the housing member. The seal member engages the battery pack and the housing member along an outer circumference of the battery pack and an inner circumference of the recess such that the seal member seals the gap between the outer circumference of the battery pack and the inner circumference of the recess, thereby preventing contaminants from an external environment from entering into an interior of the recess through the gap.