Housing assembly and method

Patent metadata

Field	Value
Publication number	US-10723082-B2
Application number	US-201815920310-A
Country	US
Kind code	B2
Filing date	Mar 13, 2018
Priority date	Apr 7, 2017
Publication date	Jul 28, 2020
Grant date	Jul 28, 2020

Abstract

A cover for a housing of a vehicle and a method of sealing a cover to the housing, where in at least one example, the cover comprises a cover body configured to cover an opening of the housing and to engage the housing at an interface around the opening. The cover may comprise a heating element embedded within the cover body and operable to at least partially melt a portion of the cover body as a part of a process for sealing the cover to the housing. The portion of the cover body may deform and conform to an interface feature at the mating surface of the housing due to the at least partial melting of the portion of the cover body, and, in some examples, the heating element may be configured to fail and be inoperable.

First claim

The invention claimed is:

1. A cover for a housing within a vehicle, wherein the cover comprises:
a cover body which covers an opening of the housing and engages with the housing at an interface around the opening, the cover body having a mating surface that engages a corresponding mating surface of the housing so as to form the interface; and
a heating element comprising a resistive wire embedded within the cover body and operable to at least partially melt a portion of the cover body, such that the portion of the cover body deforms and conforms to an interface feature at the mating surface of the housing;
wherein the resistive wire comprises a first portion having a first diameter and a second portion having a second diameter, wherein the first diameter is different from the second diameter.

2. The cover of claim 1 , wherein the interface extends at least partially around an edge of the cover body and the heating element is embedded at the edge of the cover body.

3. The cover of claim 1 , wherein the cover is configured such that the portion of the cover body that is to be at least partially melted by the heating element extends along a length of the interface when the heating element is operated.

4. The cover of claim 1 , wherein the portion of the cover body that is to be at least partially melted by the heating element has a greater thickness than an adjacent portion of the cover body that is not to be melted by the heating element.

5. A method of sealing a cover to a housing, comprising:
aligning a cover mating surface and a corresponding housing mating surface;
heating a heating element embedded within the cover, wherein the heating element comprises a first resistive wire embedded within the cover body;
at least partially melting the cover mating surface; and
deforming the cover mating surface to conform to the corresponding housing mating surface;
wherein the heating element further comprises a second resistive wire, and wherein heating the heating element further comprises applying a second electric current to the second resistive wire, wherein a magnitude of the second electric current is different from that of a first electric current.

6. The method of claim 5 , wherein heating the heating element comprises inducing the first electric current within the first resistive wire via an electromagnetic coil arranged outside of the cover.

7. The method of claim 6 , wherein the heating element comprises the second resistive wire embedded within the cover mating surface, and wherein the step of heating the cover comprises inducing the second electric current within the second resistive wire, wherein the magnitude of the second electric current is different from that of the first electric current.

8. The method of claim 5 , wherein deforming the cover mating surface comprises applying a force to the cover to press the cover mating surface against the corresponding housing mating surface while the cover mating surface is at least partially melted.

9. The method of claim 8 , further comprising breaking the heating element, wherein the heating element is inoperable after the heating element is broken.

10. The method of claim 9 , wherein the heating element is broken responsive to the heating element being heated to at least a predetermined temperature for at least a predetermined period of time.

Assignees

• Ford Motor Co
• Ford Global Tech Llc

Inventors

• Mallard William John

Classifications

• B29C66/24249

  forming a specific polygon not provided for in B29C66/24241 - B29C66/24243 · CPC title

• B29C66/3472

  in the plane of the joint, e.g. along the joint line in the plane of the joint or perpendicular to the joint line in the plane of the joint · CPC title

• B29C66/0244

  Cooling · CPC title

• B29C66/91645

  by steps · CPC title

• B29C65/3468

  characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special electrical connectors of windings (B29C65/3668 takes precedence) · CPC title