IP Library Granted Patent US 10,795,242
Granted Patent B2
US 10,795,242 · App. 15/996,137 · Granted Oct 6, 2020

Electronics device that dissipates internal device heat via heat sink having exposed surface

Inventors: Winson Chan (Vancouver, CA); Thomas W. Holbrook (Vancouver, CA); Colin Paul Janssen (Vancouver, CA)
Assignee: AVIGILON CORPORATION
G03B17/55G03B17/02H04N5/2252H04N5/23238H05K7/2039H05K7/20445H05K1/0203H05K1/144H05K2201/10151
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Quick Facts
Patent No.
US 10,795,242
App. No.
15/996,137
Granted
Oct 6, 2020
Kind
B2
Abstract

A power consuming electronics device that dissipates internal device heat via a heat sink is disclosed. The power consuming electronics device includes first and second complementary housing parts. The first housing part includes a first surface ending at a first peripheral edge, and the second housing part including a second surface ending at a second peripheral edge. The power consuming electronics device also includes a heat sink having an air exposed surface that is interposed between the first and second peripheral edges. Surface edges of the air exposed surface abut the first and second peripheral edges of the housing parts and are respectively matched therewith in shape and dimension so that an overall composite surface formed by the first and second surfaces of the housing parts and the air exposed surface of the heat sink is substantially continuous and uniform.

Claims (36)

1. A dome camera comprising:

a first semi-spherical housing part including a first surface ending at a first peripheral edge;

a second semi-spherical housing part including a snap and a second surface ending at a second peripheral edge, the second semi-spherical housing part being complementary to the first semi-spherical housing part;

a heat sink defining a groove and having an air exposed surface that is ring-shaped and interposed between the first and second peripheral edges, and surface edges of the air exposed surface that abut the first and second peripheral edges of the housing parts are respectively matched therewith in shape and dimension so that an overall composite surface formed by the first and second surfaces of the housing parts and the air exposed surface of the heat sink is substantially continuous and uniform; and

at least one heat-generating device component located within the dome camera and connected to the heat sink,

wherein when the dome camera is on and the device component is generating heat, the heat is drawn away from the device component via the heat sink, and

wherein the snap is complementary-shaped in relation to the groove that is sized and shaped to align with the snap.

2. The dome camera as claimed in claim 1 wherein the first semi-spherical housing part defines a first housing space, the heat sink defines a second housing space that extends between the surface edges, and the second semi-spherical housing part defines a third housing space, and an overall housing space for the dome camera is constituted by the first housing space, the second housing space and the third housing space.

3. The dome camera as claimed in claim 2 wherein the at least one heat-generating device component includes a sensor printed circuit board assembly and a digital printed circuit board assembly located within the second housing space.

4. The dome camera as claimed in claim 1 wherein the air exposed surface of the heat sink is a finished surface that is electrocoated or powder coated.

5. The dome camera as claimed in claim 1 wherein the first and second semi-spherical housing parts are both made of a combination of polycarbonate and acrylonitrile-butadiene-styrene.

6. A power consuming electronics device comprising:

first and second complementary housing parts, the first housing part including a first surface ending at a first peripheral edge, and the second housing part including a snap and a second surface ending at a second peripheral edge;

a heat sink defining a groove and having an air exposed surface that is closed curved and interposed between the first and second peripheral edges, and surface edges of the air exposed surface that abut the first and second peripheral edges of the housing parts are respectively matched therewith in shape and dimension so that an overall composite surface formed by the first and second surfaces of the housing parts and the air exposed surface of the heat sink is substantially continuous and uniform; and

at least one heat-generating device component located within the electronics device and connected to the heat sink,

wherein the electronics device is a dome camera, and the first and second housing parts when assembled with the heat sink form a spherical shaped housing of the dome camera,

wherein when the electronics device is on and the device component is generating heat, the heat is drawn away from the device component via the heat sink, and

wherein the snap is complementary-shaped in relation to the groove that is sized and shaped to align with the snap.

7. The power consuming electronics device as claimed in claim 6 wherein the at least one heat-generating device component includes a sensor printed circuit board assembly and a digital printed circuit board assembly contained within the spherical shaped housing.

8. The power consuming electronics device as claimed in claim 7 further comprising a thermal interface material within the spherical shaped housing and positioned between the digital printed circuit board assembly and the heat sink.

9. The power consuming electronics device as claimed in claim 7 wherein the sensor printed circuit board assembly has exposed copper that is in direct contact with the heat sink.

10. The power consuming electronics device as claimed in claim 6 wherein the air exposed surface of the heat sink is a finished surface that is electrocoated or powder coated.

11. The power consuming electronics device as claimed in claim 6 wherein each of the first and second peripheral edges are at least partly conic section-shaped.

12. A device comprising:

first and second complementary housing parts, the first housing part including a first surface ending at a first peripheral edge, and the second housing part including a snap and a second surface ending at a second peripheral edge;

a heat sink defining a groove and having an air exposed surface that is interposed between the first and second peripheral edges, and surface edges of the air exposed surface are respectively matched with the first and second peripheral edges of the housing parts for flush abutment to provide combination-discreetness of the an overall composite surface formed by the first and second surfaces of the housing parts and the air exposed surface of the heat sink; and

at least one heat-generating device component located within the device and connected to the heat sink,

wherein the device is a dome camera, and the first and second housing parts when assembled with the heat sink form a spherical shaped housing of the dome camera,

wherein when the device component is generating heat, the heat is drawn away from the device component via the heat sink, and

wherein the snap is complementary-shaped in relation to the groove that is sized and shaped to align with the snap.

13. The device as claimed in claim 12 wherein the at least one heat-generating device component includes a sensor printed circuit board assembly and a digital printed circuit board assembly contained within the spherical shaped housing.

14. The device as claimed in claim 13 further comprising a thermal interface material within the spherical shaped housing and positioned between the digital printed circuit board assembly and the heat sink.

15. The device as claimed in claim 13 wherein the sensor printed circuit board assembly has exposed copper that is in direct contact with the heat sink.

16. The device as claimed in claim 12 wherein the air exposed surface of the heat sink is a finished surface that is electrocoated or powder coated.

17. The device as claimed in claim 12 wherein each of the first and second peripheral edges are at least partly conic section-shaped.

18. The device as claimed in claim 12 wherein the first and second complementary housing parts are both made of a combination of polycarbonate (PC) and acrylonitrile-butadiene-styrene.

Assignments (2)
NUNC PRO TUNC ASSIGNMENT Recorded Aug 31, 2022
From: AVIGILON CORPORATION
To: MOTOROLA SOLUTIONS, INC.
Reel/Frame 061361/0905 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 27, 2018
From: CHAN, WINSON; HOLBROOK, THOMAS W.; JANSSEN, COLIN PAUL
To: AVIGILON CORPORATION
Reel/Frame 047596/0195 →
Continuity (2)
Provisional Application 62515330 · Jun 5, 2017
Related Publication 20180348600A1 · Dec 6, 2018
Cited By (3)
US 12,287,380 US 12,591,166 US 12,632,988