CA2303525A1 - Heat management for enclosed video cameras - Google Patents
Heat management for enclosed video cameras Download PDFInfo
- Publication number
- CA2303525A1 CA2303525A1 CA002303525A CA2303525A CA2303525A1 CA 2303525 A1 CA2303525 A1 CA 2303525A1 CA 002303525 A CA002303525 A CA 002303525A CA 2303525 A CA2303525 A CA 2303525A CA 2303525 A1 CA2303525 A1 CA 2303525A1
- Authority
- CA
- Canada
- Prior art keywords
- housing assembly
- assembly
- heat
- electrical components
- heat generating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
- H05K7/20509—Multiple-component heat spreaders; Multi-component heat-conducting support plates; Multi-component non-closed heat-conducting structures
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
- G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
- G08B13/19617—Surveillance camera constructional details
- G08B13/19619—Details of casing
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
- G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
- G08B13/19617—Surveillance camera constructional details
- G08B13/19632—Camera support structures, e.g. attachment means, poles
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/51—Housings
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Studio Devices (AREA)
Abstract
An apparatus for heat management within an enclosed video surveillance camera operative to receive, capture, record, store and transmit video images, the apparatus comprising a housing assembly and a video camera assembly, the housing assembly consisting of front, mid and rear assemblies, the mid assembly functioning as a heat sink to capture and dissipate heat generated within the front and rear assemblies, is disclosed.
Description
HEAT MANAGEMENT FOR ENCLOSED YIDEO CAMERAS
FIELD OF THE INVENTION
The invention herein disclosed relates to the field of security video monitoring. Specifically the invention is an apparatus for heat management within an enclosed video surveillance camera.
BACKGROUND OF THE INVENTION
Video surveillance cameras are part of a continually evolving field of technology wherein many different types of video cameras have been developed. Surveillance systems consist of a video camera operative to receive, capture, record and store, and optionally transmit, video images of a particular location or scene, enclosed within a protective housing. The video camera assembly consists of various heat generating integrated circuits and other electrical components, and is typically enclosed within a tamper proof protective housing.
The tamper proof protective housing is usually fabricated from metal or plastic, and designed to withstand both substantial shocks and mis-handling, as well as severe or harsh internal and outdoor environments. Such video surveillance camera units are typically mounted on a wall, ceiling or side of building to provide surveillance monitoring of an area or scene of particular interest. A common use of video surveillance camera systems is for high security monitoring for prisons or other locations where security is of importance.
Since such video surveillance camera units are designed for both internal and external environments, the units are typically designed to be impervious to water penetration. Water resistance is obtained by using various gaskets and seals to tightly fit the various components of the video camera assembly together so that water does not penetrate inside the protective enclosure to damage or harm the internal components. Due to its resistance to both water and rust, high-density plastic is sometimes used for the protective enclosures.
Unfortunately solving the water penetration problem causes another. In particular when the camera is operational the watertight nature of the protective enclosure means that just as water cannot enter, the unit heat generated by the electrical components cannot escape. This heat, or thermal radiation, builds up during operation and causes the internal temperature within the protective enclosure to rise beyond the maximum temperature tolerances of the electrical components of the video camera unit. Ultimately this results in the failure of the electrical components of the video surveillance camera. Such a failure causes the unit to cease functioning, which is unacceptable in high security surveillance applications.
FIELD OF THE INVENTION
The invention herein disclosed relates to the field of security video monitoring. Specifically the invention is an apparatus for heat management within an enclosed video surveillance camera.
BACKGROUND OF THE INVENTION
Video surveillance cameras are part of a continually evolving field of technology wherein many different types of video cameras have been developed. Surveillance systems consist of a video camera operative to receive, capture, record and store, and optionally transmit, video images of a particular location or scene, enclosed within a protective housing. The video camera assembly consists of various heat generating integrated circuits and other electrical components, and is typically enclosed within a tamper proof protective housing.
The tamper proof protective housing is usually fabricated from metal or plastic, and designed to withstand both substantial shocks and mis-handling, as well as severe or harsh internal and outdoor environments. Such video surveillance camera units are typically mounted on a wall, ceiling or side of building to provide surveillance monitoring of an area or scene of particular interest. A common use of video surveillance camera systems is for high security monitoring for prisons or other locations where security is of importance.
Since such video surveillance camera units are designed for both internal and external environments, the units are typically designed to be impervious to water penetration. Water resistance is obtained by using various gaskets and seals to tightly fit the various components of the video camera assembly together so that water does not penetrate inside the protective enclosure to damage or harm the internal components. Due to its resistance to both water and rust, high-density plastic is sometimes used for the protective enclosures.
Unfortunately solving the water penetration problem causes another. In particular when the camera is operational the watertight nature of the protective enclosure means that just as water cannot enter, the unit heat generated by the electrical components cannot escape. This heat, or thermal radiation, builds up during operation and causes the internal temperature within the protective enclosure to rise beyond the maximum temperature tolerances of the electrical components of the video camera unit. Ultimately this results in the failure of the electrical components of the video surveillance camera. Such a failure causes the unit to cease functioning, which is unacceptable in high security surveillance applications.
There are few patents that specifically address the aforementioned problems. In particular, U.S. Patent No.
5,854,874 (Yatsugi et. al) and No. 6, 011,690 (Hughes et. al) disclose methods of thermal management for devices fitted with Personal Computer (PC) cards. U.S. Patent No. 5,854,874 discloses a method of using the entire video camera housing as a heat sink to minimize the internal temperature of an enclosed image recording system. This patent requires the external housing to be composed of a material high in thermal conductivity such as metal, thus causing the entire protective enclosure to become hot when the camera is operational. U.S. Patent No.
6,011,690 (Hughes et. al) also discloses a conduction heat transfer relationship for PC cards to housing covers. Both patents fail to address the need for providing a heat dissipation mechanism for a plastic enclosure, or provide a means to retrofit a heat sink within an existing protective enclosure while providing a watertight enclosure.
Therefore it is the object of the present invention to provide an improved video camera with a heat management structure in an enclosed video surveillance camera. It is a further object of the present invention to provide a video camera having a heat management apparatus that also facilitates sealing the protective enclosure from water. Another object of the present invention is to provide a video camera with a heat management apparatus which can be retrofitted into existing video camera units without adding significant shape, bulk or weight to the protective enclosure. It is still a further object of the present invention to provide a video camera with a heat management apparatus that will not cause the entire protective housing to dissipate heat, rather to localize the effect so that the enclosure remains cool to the human touch.
Accordingly, the overall object of the present invention is to provide for sufficiently rapid heat transfer from the heat generating electrical components contained within the front and rear housing assemblies to that of the mid housing assembly, and from the mid housing assembly to the ambient environment so as to maintain the temperature within the housing assembly such that the electrical components stay within their normal operating temperature ranges.
SUD~ARY Oh' THE INVENTION
In accordance with the broader aspects of the present invention, an apparatus for heat management within an enclosed video surveillance camera, the apparatus being designed to capture thermal heat generated within the camera's protective enclosure and conduct the heat from the interior to the exterior of the enclosure to be dissipated, via convection, into the surrounding environment, is disclosed.
5,854,874 (Yatsugi et. al) and No. 6, 011,690 (Hughes et. al) disclose methods of thermal management for devices fitted with Personal Computer (PC) cards. U.S. Patent No. 5,854,874 discloses a method of using the entire video camera housing as a heat sink to minimize the internal temperature of an enclosed image recording system. This patent requires the external housing to be composed of a material high in thermal conductivity such as metal, thus causing the entire protective enclosure to become hot when the camera is operational. U.S. Patent No.
6,011,690 (Hughes et. al) also discloses a conduction heat transfer relationship for PC cards to housing covers. Both patents fail to address the need for providing a heat dissipation mechanism for a plastic enclosure, or provide a means to retrofit a heat sink within an existing protective enclosure while providing a watertight enclosure.
Therefore it is the object of the present invention to provide an improved video camera with a heat management structure in an enclosed video surveillance camera. It is a further object of the present invention to provide a video camera having a heat management apparatus that also facilitates sealing the protective enclosure from water. Another object of the present invention is to provide a video camera with a heat management apparatus which can be retrofitted into existing video camera units without adding significant shape, bulk or weight to the protective enclosure. It is still a further object of the present invention to provide a video camera with a heat management apparatus that will not cause the entire protective housing to dissipate heat, rather to localize the effect so that the enclosure remains cool to the human touch.
Accordingly, the overall object of the present invention is to provide for sufficiently rapid heat transfer from the heat generating electrical components contained within the front and rear housing assemblies to that of the mid housing assembly, and from the mid housing assembly to the ambient environment so as to maintain the temperature within the housing assembly such that the electrical components stay within their normal operating temperature ranges.
SUD~ARY Oh' THE INVENTION
In accordance with the broader aspects of the present invention, an apparatus for heat management within an enclosed video surveillance camera, the apparatus being designed to capture thermal heat generated within the camera's protective enclosure and conduct the heat from the interior to the exterior of the enclosure to be dissipated, via convection, into the surrounding environment, is disclosed.
BRIEF DESCRIPTION OIP THE DRANINC~B
Fig. 1 depicts the components of the apparatus for heat management within an enclosed video camera system of the invention disclosed herein.
Fig. 2 depicts the mid assembly component of the apparatus for heat management within an enclosed video camera system as disclosed herein.
Fig. 3a depicts a front view of the apparatus for heat management within an enclosed video camera system as disclosed herein.
Fig. 3b depicts a left-side perspective view of the apparatus for heat management within an enclosed video camera system as disclosed herein.
Fig. 3c depicts a rear perspective view with camera mount removed, of the apparatus for heat management within an enclosed video camera system as disclosed herein.
DETAILED DESCRIPTION KITH R8FER8NCE TO TH8 DRANINf3S
The apparatus of the present invention comprises a housing assembly and a video camera assembly 5, the housing assembly being further comprised of a front housing assembly 1, a mid housing assembly 2 and a rear housing assembly 3. The housing assembly is designed to be lightweight and to have high impact and water resistance. Preferably, the front 1 and rear 3 housing assemblies are formed from high-density plastic, although any other strong, lightweight material, such as aluminum or magnesium may be used. The front 1 and rear 3 housing assemblies are fabricated from the same material, while the mid housing assembly a is formed from a different material whose composition is such that it is high in thermal conductivity.
To facilitate the video camera assembly 5, the front housing assembly 1 contains a front panel assembly 4 including a lens component through which the video camera assembly 5 is operative to receive, capture, record, store and, optionally, transmit video images. The video camera assembly 5 comprises various heat generating electrical components including one or more printed circuit boards (PCBs) 7 and 8, electrical circuitry, data registers, stores, ports, buses, logic components, resident ' software and connectors which, when operative, generate thermal radiation within the protective enclosure.
In the instance where the front 1 and rear 3 housing assemblies are formed of high-density plastic, the mid housing assembly 2 is preferably metal, such as aluminum, although any other highly conductive material such as zinc or magnesium may also be used. In the preferred embodiment disclosed herein aluminum is chosen for its strength and lightness of weight as well as its superior conductivity in relation to the surrounding plastic front and rear assemblies. Preferably the mid housing assembly Z surface is treated such as by chromate so as to retain its conductivity characteristics over time and use.
Additionally, the mid housing assembly Z contains several embossed areas, which conform in size, shape and position with the heat generating electrical components. The purpose of the embossed areas is to raise specific sections of the mid housing assembly 2 to be closer to the heat generating electrical components so as to most effectively capture the heat radiated from these components. The mid housing assembly 2 also has various cutouts 12 to accommodate electrical connectors or cables which must pass from the front housing assembly 1 through to the rear housing assembly 3 in order to facilitate the video camera operation. As well as facilitating cabling, the cutouts 12 also serve to allow better internal air circulation and alleviate excessive heat build up in either of the front 1 or rear 3 housing assemblies.
Together the front 1, mid 2 and rear 3 housing assemblies are fitted together with rubber gaskets 15 and 16, which act as a water barrier at the junctures of the assemblies, to form the protective housing.
Silicone pads il are in contact with both the heat generating PCBs 7 and 8' and the mid housing assembly 2 and also serve to increase the contact surface and the speed of transfer of thermal radiation from the PCBs 7 and 8 to the mid housing assembly 2, thereby increasing the overall cooling effect within the video camera unit.
Another important aspect of the mid assembly 2 is that it is formed so that it has several external protrusions or fins 13 that project beyond the external dimensions of the front 1 and rear 3 housing assemblies. The purpose of the fins 13 is to increase the overall surface area of the mid housing assembly 2, which is in contact with the ambient environment. Through this increased surface area a maximal rapid cooling effect is produced as a greater surface area of the mid housing assembly 2 is in contact with the ambient environment. Similarly, extending the fins 13 beyond the external dimension of the front 1 and rear 3 housing assemblies also increases the cooling effect by moving the heat radiating surfaces away from the protective enclosure which needs to remain cool to the human touch and increase the coefficient of thermal connections. Fins 13 create turbulence for cooling. The fact that the heat sink with fins 13 is engineered to dissipate heat means that the other covers can be made of less expensive materials.
Therefore, it will be apparent to those skilled in the art that the invention and variations thereof disclosed herein has solved the aforementioned problems in a most advantageous fashion. Although an illustrative embodiment of the present invention and various modifications thereof, have been described here with reference to the accompanying figures, it is to be understood that the invention is not limited to this precise embodiment and the described variations, changes and further modifications may be effected therein by one skilled in the art without departing from the scope of spirit of the invention as defined in the claims.
Fig. 1 depicts the components of the apparatus for heat management within an enclosed video camera system of the invention disclosed herein.
Fig. 2 depicts the mid assembly component of the apparatus for heat management within an enclosed video camera system as disclosed herein.
Fig. 3a depicts a front view of the apparatus for heat management within an enclosed video camera system as disclosed herein.
Fig. 3b depicts a left-side perspective view of the apparatus for heat management within an enclosed video camera system as disclosed herein.
Fig. 3c depicts a rear perspective view with camera mount removed, of the apparatus for heat management within an enclosed video camera system as disclosed herein.
DETAILED DESCRIPTION KITH R8FER8NCE TO TH8 DRANINf3S
The apparatus of the present invention comprises a housing assembly and a video camera assembly 5, the housing assembly being further comprised of a front housing assembly 1, a mid housing assembly 2 and a rear housing assembly 3. The housing assembly is designed to be lightweight and to have high impact and water resistance. Preferably, the front 1 and rear 3 housing assemblies are formed from high-density plastic, although any other strong, lightweight material, such as aluminum or magnesium may be used. The front 1 and rear 3 housing assemblies are fabricated from the same material, while the mid housing assembly a is formed from a different material whose composition is such that it is high in thermal conductivity.
To facilitate the video camera assembly 5, the front housing assembly 1 contains a front panel assembly 4 including a lens component through which the video camera assembly 5 is operative to receive, capture, record, store and, optionally, transmit video images. The video camera assembly 5 comprises various heat generating electrical components including one or more printed circuit boards (PCBs) 7 and 8, electrical circuitry, data registers, stores, ports, buses, logic components, resident ' software and connectors which, when operative, generate thermal radiation within the protective enclosure.
In the instance where the front 1 and rear 3 housing assemblies are formed of high-density plastic, the mid housing assembly 2 is preferably metal, such as aluminum, although any other highly conductive material such as zinc or magnesium may also be used. In the preferred embodiment disclosed herein aluminum is chosen for its strength and lightness of weight as well as its superior conductivity in relation to the surrounding plastic front and rear assemblies. Preferably the mid housing assembly Z surface is treated such as by chromate so as to retain its conductivity characteristics over time and use.
Additionally, the mid housing assembly Z contains several embossed areas, which conform in size, shape and position with the heat generating electrical components. The purpose of the embossed areas is to raise specific sections of the mid housing assembly 2 to be closer to the heat generating electrical components so as to most effectively capture the heat radiated from these components. The mid housing assembly 2 also has various cutouts 12 to accommodate electrical connectors or cables which must pass from the front housing assembly 1 through to the rear housing assembly 3 in order to facilitate the video camera operation. As well as facilitating cabling, the cutouts 12 also serve to allow better internal air circulation and alleviate excessive heat build up in either of the front 1 or rear 3 housing assemblies.
Together the front 1, mid 2 and rear 3 housing assemblies are fitted together with rubber gaskets 15 and 16, which act as a water barrier at the junctures of the assemblies, to form the protective housing.
Silicone pads il are in contact with both the heat generating PCBs 7 and 8' and the mid housing assembly 2 and also serve to increase the contact surface and the speed of transfer of thermal radiation from the PCBs 7 and 8 to the mid housing assembly 2, thereby increasing the overall cooling effect within the video camera unit.
Another important aspect of the mid assembly 2 is that it is formed so that it has several external protrusions or fins 13 that project beyond the external dimensions of the front 1 and rear 3 housing assemblies. The purpose of the fins 13 is to increase the overall surface area of the mid housing assembly 2, which is in contact with the ambient environment. Through this increased surface area a maximal rapid cooling effect is produced as a greater surface area of the mid housing assembly 2 is in contact with the ambient environment. Similarly, extending the fins 13 beyond the external dimension of the front 1 and rear 3 housing assemblies also increases the cooling effect by moving the heat radiating surfaces away from the protective enclosure which needs to remain cool to the human touch and increase the coefficient of thermal connections. Fins 13 create turbulence for cooling. The fact that the heat sink with fins 13 is engineered to dissipate heat means that the other covers can be made of less expensive materials.
Therefore, it will be apparent to those skilled in the art that the invention and variations thereof disclosed herein has solved the aforementioned problems in a most advantageous fashion. Although an illustrative embodiment of the present invention and various modifications thereof, have been described here with reference to the accompanying figures, it is to be understood that the invention is not limited to this precise embodiment and the described variations, changes and further modifications may be effected therein by one skilled in the art without departing from the scope of spirit of the invention as defined in the claims.
Claims (14)
1. A video camera assembly, having a front housing assembly and a rear housing assembly, comprising:
a mid housing assembly between said front and rear housing assemblies, said mid housing assembly positioned to receive heat conduction from adjacent heat generating circuit components and conduct this heat to an external heat dissipating structure.
a mid housing assembly between said front and rear housing assemblies, said mid housing assembly positioned to receive heat conduction from adjacent heat generating circuit components and conduct this heat to an external heat dissipating structure.
2. An apparatus for heat management within an enclosed video surveillance camera, the apparatus comprising:
(a) a housing assembly; and (b) a video camera assembly.
(a) a housing assembly; and (b) a video camera assembly.
3. The apparatus according to claim 2, wherein said housing assembly is further comprised of:
(a) a front housing assembly;
(b) a first gasket;
(c) a mid housing assembly;
(d) a second gasket; and (e) a rear housing assembly.
(a) a front housing assembly;
(b) a first gasket;
(c) a mid housing assembly;
(d) a second gasket; and (e) a rear housing assembly.
4. The apparatus according to claim 3, wherein said front housing assembly and said rear housing assembly are fabricated from the same material, and said mid housing assembly is fabricated from a different material than said front and rear housing assemblies.
5. The apparatus according to claim 3, wherein said front housing assembly, said first gasket, said mid housing assembly, said second gasket and said rear housing assembly join together to provide a water proof protective enclosure for the video camera assembly.
6. The apparatus according to claim 4, wherein said protective enclosure comprises a front panel assembly including a lens component through which said video camera assembly is operative to receive, capture, record, and store video images.
7. The apparatus according to claim 2, wherein said video camera assembly is further comprised of heat generating electrical components, said heat generating electrical components being further composed of one or more printed circuit boards (PCB), electrical circuitry, data registers, stores, ports, buses, logic components, resident software and connectors to be operative in concert to receive, capture, record, store and transmit video images, and wherein said heat generating electrical components are operative to generate thermal radiation within said protective enclosure.
8. The apparatus according to claim 3, wherein said mid housing assembly further comprises a plate of specific thickness whose thickness is determined according to specific requirements for heat dissipation via thermal conduction and radiation, said plate having a front plane and a back plane, said front plane and said back plane having attachment points for affixing one or more PCBs, and said plate being operative as a heat sink to capture and dissipate heat generated by said one or more PCBs.
9. The apparatus according to claim 7, wherein said specific requirements for heat dissipation are determined by the temperature operating tolerances of said heat generating electrical components, and by the temperature retention characteristics of said housing assembly, said specific requirements being determined by laws of thermo-dynamics and by the necessity to keep the internal temperature of said housing assembly within the temperature tolerances of said heat generating electrical components.
10. The apparatus according to claim 7, wherein said plate further comprises one or more embossed areas which correspond in shape to said heat generating electrical components, wherein said embossed areas are placed directly opposite said heat generating electrical components to capture, via conduction, said thermal radiation.
11. The. apparatus according to claim 8, wherein said embossed areas function to capture the maximum amount of thermal radiation generated by said heat generating electrical components and function to transfer, via conduction, said captured thermal radiation to the exterior edges of said plate.
12. The apparatus according to claim 7, wherein said plate further comprises one or more cutout areas, said cutout areas functioning to provide an access channel between the said front assembly and said rear assembly to permit inter-connection of the electrical components on either side of the assemblies, and said cutout areas functioning to improve the circulation of the air contained within said housing to prevent excessive buildup of heat on one side of the plate alone.
13. The apparatus according to claim 7, wherein said plate of specific thickness is constructed to have an edge which extends beyond said housing assembly, said edge being formed to include one or more fins, said fins constructed to provide maximum surface area to transfer said captured thermal radiation from said plate into the surrounding atmosphere.
14. The apparatus according to claim 4, wherein said different material is one chosen to capture the maximum amount of thermal radiation from said heat dissipating electrical components, and wherein in order to retain conductivity, a coating of said different material is selected from the group consisting of alodyne, anodyne and chromate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002303525A CA2303525A1 (en) | 2000-03-30 | 2000-03-30 | Heat management for enclosed video cameras |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002303525A CA2303525A1 (en) | 2000-03-30 | 2000-03-30 | Heat management for enclosed video cameras |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2303525A1 true CA2303525A1 (en) | 2001-09-30 |
Family
ID=4165733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002303525A Abandoned CA2303525A1 (en) | 2000-03-30 | 2000-03-30 | Heat management for enclosed video cameras |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2303525A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1655956A2 (en) * | 2004-11-08 | 2006-05-10 | Sony Corporation | Camera apparatus |
| DE102005027893A1 (en) * | 2005-06-16 | 2006-12-28 | Basler Ag | Housing or housing part for camera has carrier on which photosensitive sensor is arranged which extends perpendicular to optical axis of camera and has support for lens connected with carrier and with this mounting unit is formed |
| WO2007033044A1 (en) * | 2005-09-13 | 2007-03-22 | Autoliv Development Ab | Camera system |
| WO2009046513A1 (en) * | 2007-10-09 | 2009-04-16 | Tony Mayer | Camera housing heatsink bracket system |
| US9167137B2 (en) | 2013-04-30 | 2015-10-20 | Avigilon Corporation | Security camera having a cable assembly with an integrated processing module |
| CN105359196A (en) * | 2013-04-30 | 2016-02-24 | 威智伦公司 | Security camera having a cable assembly with an integrated processing module |
| WO2018171915A1 (en) * | 2017-03-20 | 2018-09-27 | Rosenberger Hochfrequenztechnik Gmbh & Co. Kg | Housing part for a camera housing |
-
2000
- 2000-03-30 CA CA002303525A patent/CA2303525A1/en not_active Abandoned
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1655956A3 (en) * | 2004-11-08 | 2006-08-16 | Sony Corporation | Camera apparatus |
| US7519292B2 (en) | 2004-11-08 | 2009-04-14 | Sony Corporation | Camera apparatus |
| EP1655956A2 (en) * | 2004-11-08 | 2006-05-10 | Sony Corporation | Camera apparatus |
| DE102005027893A1 (en) * | 2005-06-16 | 2006-12-28 | Basler Ag | Housing or housing part for camera has carrier on which photosensitive sensor is arranged which extends perpendicular to optical axis of camera and has support for lens connected with carrier and with this mounting unit is formed |
| DE102005027893B4 (en) * | 2005-06-16 | 2007-12-27 | Basler Ag | Housing or housing part for an electronic camera with alignable sensor |
| DE112006002383B4 (en) * | 2005-09-13 | 2009-05-07 | Autoliv Development Ab | camera system |
| WO2007033044A1 (en) * | 2005-09-13 | 2007-03-22 | Autoliv Development Ab | Camera system |
| CN101919247B (en) * | 2007-10-09 | 2014-06-18 | 博世安防系统公司 | Camera housing heat dissipation bracket system |
| WO2009046513A1 (en) * | 2007-10-09 | 2009-04-16 | Tony Mayer | Camera housing heatsink bracket system |
| US9167137B2 (en) | 2013-04-30 | 2015-10-20 | Avigilon Corporation | Security camera having a cable assembly with an integrated processing module |
| CN105359196A (en) * | 2013-04-30 | 2016-02-24 | 威智伦公司 | Security camera having a cable assembly with an integrated processing module |
| CN105359196B (en) * | 2013-04-30 | 2017-09-22 | 威智伦公司 | CCTV camera with the CA cable assembly with integrated processing module |
| WO2018171915A1 (en) * | 2017-03-20 | 2018-09-27 | Rosenberger Hochfrequenztechnik Gmbh & Co. Kg | Housing part for a camera housing |
| CN110178361A (en) * | 2017-03-20 | 2019-08-27 | 罗森伯格高频技术有限及两合公司 | Housing parts for camera case |
| US10944892B2 (en) | 2017-03-20 | 2021-03-09 | Rosenberger Hochfrequenztechnik Gmbh | Housing part for a camera housing |
| CN110178361B (en) * | 2017-03-20 | 2021-07-06 | 罗森伯格高频技术有限及两合公司 | Housing part for a camera housing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |