Method and structure for limiting cover deflection in an ECU when exposed to high altitude environments
First Claim
Patent Images
1. An engine control unit (ECU) comprising:
- a housing,a cover sealingly engaged with the housing,a circuit board disposed in the housing,support structure disposed in the housing between the cover and the circuit board so as to be adjacent to an inner surface of the cover,at least one fastener coupling both the support structure and the circuit board to the housing, andan adhesive bonding at least one portion of the support structure to at least one portion of the inner surface of the cover, the adhesive contacting and disposed between the at least one portion of the support structure and the inner surface of the cover,wherein the support structure is constructed and arranged to limit deflection of the cover when internal pressure increases in the ECU,wherein the circuit board includes a mounting bore there-through, and the support structure includes a mounting portion having a bore there-through, the at least one fastener extending through the bore of the support structure and through the mounting bore of the circuit board in threaded engagement with the housing, the mounting bore of the circuit board, the bore of the mounting portion of the support structure and the at least one fastener are disposed in a longitudinally and laterally central portion of the housing, andwherein the at least one fastener comprises a single fastener.
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Accused Products
Abstract
An engine control unit (ECU) includes a housing, a cover sealingly engaged with the housing, a circuit board disposed in the housing and support structure disposed in the housing and associated with an inner surface of the cover. At least one fastener couples both the support structure and the circuit board to the housing. An adhesive bonds at least portions of the support structure to portions of the inner surface of the cover. The support structure is constructed and arranged to limit deflection of the cover when internal pressure increase in the ECU.
36 Citations
19 Claims
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1. An engine control unit (ECU) comprising:
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a housing, a cover sealingly engaged with the housing, a circuit board disposed in the housing, support structure disposed in the housing between the cover and the circuit board so as to be adjacent to an inner surface of the cover, at least one fastener coupling both the support structure and the circuit board to the housing, and an adhesive bonding at least one portion of the support structure to at least one portion of the inner surface of the cover, the adhesive contacting and disposed between the at least one portion of the support structure and the inner surface of the cover, wherein the support structure is constructed and arranged to limit deflection of the cover when internal pressure increases in the ECU, wherein the circuit board includes a mounting bore there-through, and the support structure includes a mounting portion having a bore there-through, the at least one fastener extending through the bore of the support structure and through the mounting bore of the circuit board in threaded engagement with the housing, the mounting bore of the circuit board, the bore of the mounting portion of the support structure and the at least one fastener are disposed in a longitudinally and laterally central portion of the housing, and wherein the at least one fastener comprises a single fastener. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 18)
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10. An engine control unit (ECU) comprising:
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a housing, a cover sealingly engaged with the housing, a circuit board disposed in the housing, a support structure disposed in the housing between the cover and the circuit board so as to be generally adjacent to an inner surface of the cover, at least one fastener coupling both the support structure and the circuit board to the housing, and an adhesive bonding at least one portion of the support structure to the inner surface of the cover, the adhesive being spaced from and not contacting the housing, wherein the support structure is constructed and arranged to limit outward deflection of the cover when internal pressure increases in the ECU, and wherein the at least one fastener comprises a single fastener. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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19. An engine control unit (ECU) comprising:
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a housing, a cover sealingly engaged with the housing, a circuit board disposed in the housing, a support structure disposed in the housing between the cover and the circuit board so as to be generally adjacent to an inner surface of the cover, at least one fastener coupling both the support structure and the circuit board to the housing, and an adhesive bonding at least one portion of the support structure to the inner surface of the cover, the adhesive being spaced from and not contacting the housing, wherein the support structure is constructed and arranged to limit outward deflection of the cover when internal pressure increases in the ECU, wherein the circuit board includes at least one mounting bore there-through, and the support structure includes at least one mounting portion having a bore there-through, the at least one fastener extending through the bore of the support structure and through the mounting bore of the circuit board in threaded engagement with the housing, the mounting bore of the circuit board, the bore of the mounting portion of the support structure and the at least one fastener are disposed in a generally central portion of the housing and in a longitudinally central portion of the support structure, and wherein the at least one fastener comprises only one fastener.
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Specification