Ventilated splash resistant electrical component housing

• US 4,772,759 A
• Filed: 09/23/1987
• Issued: 09/20/1988
• Est. Priority Date: 09/23/1987
• Status: Expired due to Fees

• Current Assignee: United Technologies Automotive Incorporated Dearborn Michigan
• Original Assignee: United Technologies Automotive, Inc. (Lear Corporation)
• Inventors: Salerno, John A., Brzyski, Paul J., Roy, Dhirendra C.
• Primary Examiner(s): Tolin, G. P.
• Assistant Examiner(s): OSBORN, DAVID
• Application Number:
  US07/100,160
• Time in Patent Office: 363 Days
• Field of Search: 220/27, 220/367, 98/1, 174/50, 174/52 R, 174/17 VA, 361/380, 361/383, 361/384, 361/386
• US Class Current: 174/17.0VA
• CPC Class Codes: H05K 7/02 Arrangements of circuit components or wiring on supporting structure

Abstract

A ventilated, splash-resistant electrical component housing assembly adapted to allow free flow of air throughout the housing assembly in order to provide cooling of electrical components therein. A main housing body (2) having a plurality of openings (12) along with means to retain electrical components (4) with the main body is disclosed. A top cover (30) having exterior notches (42) and an interior wall (46) with interior notches (48) is attached to the main body (2) and a bottom cover (14) having vent channels (19) is secured to the main body (2) in order to shield the electrical components and simultaneously to allow the free flow of air throughout the housing assembly.

Claims

1. A ventilated, splash-resistant electrical component housing assembly adapted to allow free flow of air throughout the housing in order to provide cooling of electrical components within the housing comprising:

(a) a rectangular main body having means for retaining electrical components therein, the main body having a bottom panel, a rear panel, a front panel, and a plurality of openings which are located in the bottom panel near at least one of the front panel or the rear panel to allow airflow through the bottom panel of the main body;

(b) a unitary rectangular bottom cover including a bottom panel having external and internal bottom panel faces, rear and front bottom cover panels, both of which have internal edges, means for securing the bottom cover to the main body, and means for venting the bottom panel of the bottom cover;

(c) a unitary rectangular top cover including a top cover panel having external and internal edges, top cover external and internal faces, a plurality of exterior notches located along the external edge of the rear of the top cover panel and terminating short of the internal edge of the rear top cover panel, and means for securing the top cover to the main body; and

(d) an interior wall located parallel and proximate to the rear of the top cover panel, the interior wall having a plurality of interior notches which are staggered with respect to the exterior notches and wherein said interior notches terminate short of the internal face of the top cover, the interior wall being joined to the rear of the top cover panel by a plurality of partitions positioned to separate the interior notches from each other and also to separate the exterior notches from each other thereby forming splash-resistant passages that in conjunction with the vent means located in the bottom cover allow for the free convection of air throughout the housing assembly.

2. The apparatus as set forth in claim 1 wherein the means for venting the bottom panel of the bottom cover comprises a plurality of elongated vent channels located adjacent to and along at least one of the rear and front bottom cover panels, said vent channels being flush with the external face, projecting perpendicularly from the internal face and terminating short of the internal edges of the rear and front bottom cover panels.

3. The apparatus as set forth in claim 1 wherein the means for venting further comprises a plurality of vent channels located adjacent to and along at least one of the rear and front bottom cover panels, the said vent channels protruding from the external face at an angle therefrom, the vent channels terminating short of the internal edges of the rear and front bottom cover panels.

4. The apparatus as set forth in claim 1 wherein the means for venting comprises a plurality of vent channels located adjacent to and along at least one of the rear and front bottom cover panels, the said vent channels having a serpentine passageway extending between an exterior portion and an interior portion so as to form an indirect passage through the bottom cover.

5. The apparatus as set forth in claim 1 wherein the unitary rectangular top cover further comprises:

(a) a plurality of exterior notches located along at least one external edge of the top cover and extending past that external edge into the rear top cover panel;

(b) an interior wall located parallel to the rear top cover panel and inclined toward the top cover internal face and terminating below the notches located in the rear top cover panel.

6. The apparatus as set forth in claim 1 wherein the top cover further comprises:

(a) a front top cover panel having external and internal edges;

(b) a plurality of front exterior notches located along the external edge of the front top cover panel and terminating short of the internal edge of the front top cover panel; and

(c) an interior wall located parallel and proximate to the front top cover panel, the interior wall having a plurality of front interior notches which are in misalignment with the front exterior notches, wherein said interior notches terminate short of the internal face of the top cover, the front interior wall being joined to the front top cover panel by a plurality of bottom partitions positioned to separate the front interior notches from each other and also to separate the front exterior notches from each other.

7. The apparatus as set forth in claim 1 wherein the top cover comprises:

an interior wall having a free stepped edge which mates with at least one of the front and rear panels of the main body that, in conjunction with at least one of the the front or rear panels of the top cover forms inwardly-facing openings, thereby enhancing the free convection of air throughout the housing assembly.