Heat sink of a camera

Patent metadata

Field	Value
Publication number	US-10416537-B2
Application number	US-201615209740-A
Country	US
Kind code	B2
Filing date	Jul 13, 2016
Priority date	Jul 7, 2016
Publication date	Sep 17, 2019
Grant date	Sep 17, 2019

Abstract

This application is directed to a camera that includes a housing, a lens assembly and a plurality of electronic components. The lens assembly is arranged at a front portion of the housing and configured for focusing light received from outside of the camera. The plurality of electronic components is arranged at the front portion of the housing, and further includes an image sensor coupled to receive light through the lens assembly, a memory for storing information, a processor for processing information from the image sensor, and a wireless communication module for wirelessly communicating with an electronic device. The camera further includes a heat dissipation element arranged at a rear portion of the housing and located between the plurality of electronic components and a rear surface of the housing. The heat dissipation element is configured to transfer heat from the plurality of electronic components to the rear portion of the housing.

First claim

What is claimed is:

1. A camera, comprising:
a housing;
a lens assembly for focusing light received from outside of the camera, the lens assembly being arranged at a front portion of the housing;
a plurality of electronic components arranged at the front portion of the housing, the electronic components including:
an image sensor coupled to receive light through the lens assembly;
a memory for storing information;
a processor for processing information from the image sensor; and
a wireless communication module for wirelessly communicating with an electronic device; and

a heat dissipation element arranged at a rear portion of the housing and located between the plurality of electronic components and a rear surface of the housing, wherein the heat dissipation element is configured to transfer heat from the plurality of electronic components to the rear portion of the housing;
wherein:
the heat dissipation element is enclosed within the housing of the camera and includes a plate and a heat sink;
the heat sink is made of thermally conductive material, coupled to the plurality of electronic components to absorb the heat generated by the plurality of electronic components, and mechanically and thermally coupled to the plate to further transfer at least part of the generated heat to the plate; and
the plate is thermally coupled between the heat sink and the rear surface of the housing and configured to spread heat generated by the plurality of electronic components and enhance dissipation of the generated heat from the heat sink to the housing, such that the heat is directed away from the front portion of the housing where optical or electrical components are located.

2. The camera of claim 1 , wherein the plate includes a magnetic plate disposed inside the housing of the camera, and the magnetic plate is configured to at least partially dissipate heat generated by the plurality of electronic components and be attracted to a magnet mount that is external to the housing of the camera for mounting the camera onto a mounting surface.

3. The camera of claim 1 , wherein the plate and the heat sink are integrated as one component for dissipating the heat generated by the plurality of electronic components.

4. The camera of claim 1 , wherein the heat sink is configured to provide a fast path to dissipate the heat generated by the plurality of electronic components located in the front portion of the housing to the plate located in the rear portion of the housing.

5. The camera of claim 1 , wherein a rear portion of the heat sink has a first shape that conforms to the plate and the rear surface of the housing.

6. The camera of claim 1 , wherein the thermally conductive material of the heat sink is a non-magnetic material.

7. The camera of claim 6 , wherein the heat sink is made of Aluminum and has a substantially low weight.

8. The camera of claim 1 , wherein the heat sink is bonded to the plate via a thermoplastic substance that has a substantially high thermal conductivity.

9. The camera of claim 1 , wherein the heat sink includes a plurality of hollow pillars configured to avoid formation of air bubbles during a casting process that creates the heat sink.

10. The camera of claim 9 , wherein the plurality of hollow pillars are parallel, and extend from a front surface to a rear surface of the heat sink.

11. The camera of claim 9 , wherein a respective cross section of each of the plurality of hollow pillars has one of a square, round, rectangular, and triangular shape.

12. The camera of claim 1 , wherein a camera lens is exposed from a front surface of the camera, and the camera lens is fully contained within the housing, the housing having a smooth body surface mechanically coupled to the front surface.

13. A system, comprising:
a housing;
a plurality of electronic components arranged at a front portion of the housing, the electronic components including:
a memory for storing information;
a processor for processing information from the image sensor; and
a wireless communication module for wirelessly communicating with an electronic device; and

a heat dissipation element arranged at a rear portion of the housing and located between the plurality of electronic components and a rear surface of the housing, wherein the heat dissipation element is configured to transfer heat from the plurality of electronic components to the rear portion of the housing;
wherein:
the heat dissipation element is enclosed within the housing of the system and includes a plate and a heat sink;
the heat sink is made of thermally conductive material, coupled to the plurality of electronic components to absorb the heat generated by the plurality of electronic components, and mechanically and thermally coupled to the plate to further transfer at least part of the generated heat to the plate; and
the plate is thermally coupled between the heat sink and the rear surface of the housing and configured to spread heat generated by the plurality of electronic components and enhance dissipation of the generated heat from the heat sink to the housing, such that the heat is directed away from the front portion of the housing where optical or electrical components are located.

14. The system of claim 13 , wherein the heat dissipation element is disposed between the rear surface of the housing and a printed circuit board (PCB) on which at least a subset of the plurality of electronic components are mounted, thereby facilitating heat transfer from the front portion of the housing to the rear portion of the housing.

15. The system of claim 14 , wherein a rear portion of the heat dissipation element has a first shape that conforms to the rear surface of the housing, and a front portion of the heat dissipation element has a second shape that conforms to a rear surface of the PCB.

16. The system of claim 13 , wherein the housing has a smooth body surface, and the smooth body surface is coated with matte material configured to protect the smooth body surface from ultraviolet light incident thereon, and avoid a change of color of the smooth body surface of the housing of the system.

17. The system of claim 13 , wherein the system includes an outdoor camera that is mounted and applied for outdoor surveillance.

18. A physical module, comprising:
a housing;
a lens assembly for focusing light received from outside of the physical module, the lens assembly being arranged at a front portion of the housing;
a plurality of electronic components arranged at the front portion of the housing, the electronic components including:
an image sensor coupled to receive light through the lens assembly;
a memory for storing information;
a processor for processing information from the image sensor; and
a wireless communication module for wirelessly communicating with an electronic device; and

a heat dissipation element arranged at a rear portion of the housing and located between the plurality of electronic components and a rear surface of the housing, wherein the heat dissipation element is configured to transfer heat from the plurality of electronic components to the rear portion of the housing;
wherein:
the heat dissipation element is enclosed within the housing of the physical module and includes a plate and a heat sink;
the heat sink is made of thermally conductive material, coupled to the plurality of electronic components to absorb the heat generated by the plurality of electronic components, and mechanically and thermally coupled to the plate to further transfer at least part of the generat

Assignees

• Google Llc

Inventors

• Goulden Jason Evans
• Shih Poll

Classifications

• H04N23/55

  Optical parts specially adapted for electronic image sensors; Mounting thereof · CPC title

• H04N23/66

  Remote control of cameras or camera parts, e.g. by remote control devices · CPC title

• H04N23/54

  Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils · CPC title

• H04N23/51

  Housings · CPC title

• G03B2206/00

  Systems for exchange of information between different pieces of apparatus, e.g. for exchanging trimming information, for photo finishing · CPC title