CN104834159A - Camera and infrared lamp fixing seat used for the same - Google Patents
Camera and infrared lamp fixing seat used for the same Download PDFInfo
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- CN104834159A CN104834159A CN201510280121.0A CN201510280121A CN104834159A CN 104834159 A CN104834159 A CN 104834159A CN 201510280121 A CN201510280121 A CN 201510280121A CN 104834159 A CN104834159 A CN 104834159A
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- Prior art keywords
- infrared lamp
- lamp holder
- air
- camera
- sight glass
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/55—Details of cameras or camera bodies; Accessories therefor with provision for heating or cooling, e.g. in aircraft
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
- G03B15/03—Combinations of cameras with lighting apparatus; Flash units
- G03B15/05—Combinations of cameras with electronic flash apparatus; Electronic flash units
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- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Studio Devices (AREA)
Abstract
The invention discloses a camera and an infrared lamp fixing seat used for the same. An infrared lamp fixing seat used for installing an infrared lamp is arranged between window glass of a camera and a camera unit, the camera is provided with a fan used for heat radiation, an air guide channel is arranged on the infrared lamp fixing seat, the air guide channel is communicated with a gap between a lens and the window glass, the fan extracts heat of a mainboard of the camera unit and blows to the window glass in the front through the air guide channel, and the heat of the mainboard of the camera unit is utilized to defog the window glass. Through the arrangement of the air guide channel, a good air channel is formed inside the camera, the air channel penetrates into the gap formed by the lens and the window glass, when air flow flows in the camera, not only a good heat radiation effect can be achieved, but also heat generated on the camera unit can be transported to the gap between the lens and the window glass, thereby achieving an effect of defogging the window glass.
Description
Technical field
The present invention relates to video monitoring apparatus technical field, be specifically related to a kind of video camera and the infrared lamp holder for this video camera.
Background technology
Along with widely using of video monitoring, multitude of video CCTV camera is arranged on outdoor, and for the video camera of outdoor utility, summer, extremely hot hot environment was the principal element affecting video camera serviceable life.And, summer heavy rain or autumn sooner or later temperature decrease, video camera front glass form is easy to condensation and hazes, and causes video camera shooting picture smudgy, also the treatment and analysis of effect diagram picture, hazing is the maximum application difficult problem that outdoor use high image quality video camera runs into.
As shown in Figure 1, existing technical scheme is for the process of heat radiation, be generally arrange turbofan 8 in video camera, heat is led on heat radiation panel beating 6 by filled type Heat Conduction Material 61 by the core devices on image unit mainboard 5, and the effect of turbofan 8 blows heat radiation to heat radiation panel beating 6.
In this technical scheme, turbofan 8 is the upper covers being fixed on shell 1, and between turbofan 8 and heat radiation panel beating 6, gap usually can be larger, causes the exhausting heat radiation weak effect that turbofan 8 reality can provide for the core devices on image unit mainboard 5.Simultaneously, light blocking ring 32 in this technical scheme is installed together with sight glass 2, the effect of light blocking ring 32 is that the infrared light avoiding infrared lamp to send as much as possible enters into camera lens 4 inside and affects picture quality, therefore the design of light blocking ring 31 extends toward the root of camera lens 4 as much as possible, until touch infrared lamp, make the space forming relative closure between camera lens 4 front end to sight glass 2, prevent entering of infrared light.Therefore, this structure, while being in the light, also blocks the hot blast that turbofan 8 blows, and does not have wind to enter, thus do not have the effect of demist in the space namely between camera lens 4 front end to sight glass 2.
In addition, this technical scheme infrared lamp holder 3 and the contact of shell 1 are that the air channel of top easily forms eddy current in corners in 90 ° of angles, are unfavorable for air circulation and the demist of video camera inside.And this assembly technology be arranged on by light blocking ring 32 on sight glass 2 is complicated, need repeatedly to put glue, assembly difficulty is large, and cost is high.
Summary of the invention
For solving the technical matters existed in above-mentioned prior art, the invention provides a kind of video camera and the infrared lamp holder for this video camera, making video camera within form effective air channel, greatly improve heat radiation and the demist ability of video camera.
For achieving the above object, technical solution of the present invention is as follows:
A kind of video camera, the infrared lamp holder for installation infrared lamp is provided with between the sight glass of described video camera and camera unit, described video camera is provided with the fan for dispelling the heat, described infrared lamp holder is provided with air-guiding aisle, described air-guiding aisle and the gap conducting between camera lens and sight glass, heat is also blowed sight glass to front through described air-guiding aisle by the heat of described fan extracting image unit mainboard, utilizes the heat of camera unit mainboard for sight glass demist.
Further, described fan is arranged on below the heat radiation panel beating of camera unit, more directly can blow heat radiation to heat radiation panel beating.
Further, also wind guide tank is provided with between the air outlet of described fan and described air-guiding aisle.The air-out of fan can be imported to air-guiding aisle.
Further, be provided with the through hole for installing camera unit camera lens in the middle part of described infrared lamp holder, the hole wall of described through hole extends to form light blocking ring to sight glass direction, and described light blocking ring and sight glass are close to installation.
Further, described light blocking ring is protruding ring-type fence structure, and described infrared lamp holder is provided with the depressed part for installation infrared lamp towards the side of sight glass, described depressed area is in the both sides of described light blocking ring.
Further, described air-guiding aisle lays respectively at the both sides up and down of described infrared lamp holder, extend inward in described through hole from the shell rim of described infrared lamp holder respectively, the degree of depth that described air-guiding aisle extends internally is greater than the degree of depth of described camera lens installation site in described through hole, but is less than the thickness of described infrared lamp holder.To make the air-out of fan can enter into gap between camera lens and sight glass, demist is carried out to sight glass.
Simultaneously, present invention also offers a kind of infrared lamp holder, described infrared lamp fixed seating is between the sight glass and camera unit of video camera, for installation infrared lamp, the through hole for installing camera unit camera lens is provided with in the middle part of described infrared lamp holder, the hole wall of described through hole extends to form light blocking ring to sight glass direction, and described infrared lamp holder is provided with towards the side of camera unit the air-guiding aisle be communicated with described through hole.
Further, described light blocking ring is protruding ring-type fence structure, and described infrared lamp holder is provided with the depressed part for installation infrared lamp towards the side of sight glass, described depressed area is in the both sides of described light blocking ring.
Further, described air-guiding aisle lays respectively at the both sides up and down of described infrared lamp holder, extend inward in described through hole from the shell rim of described infrared lamp holder respectively, the degree of depth that described air-guiding aisle extends internally is greater than the degree of depth of described camera lens installation site in described through hole, but is less than the thickness of described infrared lamp holder.
A kind of video camera that the present invention proposes and the infrared lamp holder for this video camera, fan is arranged on the below of camera unit heat radiation panel beating, the heat of camera unit mainboard is passed on heat radiation panel beating by heat conduction, then comes effectively to dispel the heat by fan; Simultaneously on the infrared lamp holder of integrated design, arrange air-guiding aisle, the air flow energy that fan is formed enters in the confined space that sight glass, infrared lamp holder and light blocking ring surround, and reaches the demist effect to sight glass.Be generally carry out demist by increasing a heating arrangement to glass vision panel demist in prior art, the present invention utilizes the heat of camera unit itself to do demist, not only energy-conservation, and without the need to additionally increasing heating arrangement in structure, decreases equipment cost.The present invention can make video camera inside form stable, effective air channel, makes air more stable when internal flow, plays better radiating effect, can carry out demist simultaneously to glass vision panel.
Accompanying drawing explanation
Fig. 1 is prior art camera structure schematic diagram;
Fig. 2 is camera structure schematic diagram of the present invention;
Fig. 3 is video camera cross section view of the present invention;
Fig. 4 is infrared lamp holder air-guiding aisle schematic diagram of the present invention;
Fig. 5 is that infrared lamp fixed seating of the present invention is in the schematic diagram of sight glass side;
Fig. 6 is the schematic diagram of another embodiment of the present invention infrared lamp holder.
Reference numeral: 1, shell; 2, sight glass; 3, infrared lamp holder; 4, camera lens; 5, image unit mainboard; 6, dispel the heat panel beating; 7, mount pad; 8, fan; 9, wind guide tank; 10, power supply adaptor; 31, air-guiding aisle; 32, light blocking ring; 33, depressed part; 61, Heat Conduction Material.
Embodiment
Be described in further details technical solution of the present invention below in conjunction with drawings and Examples, following examples do not form limitation of the invention.
General thought of the present invention arranges infrared lamp holder 3 in the shell 1 of video camera, and integrated design light blocking ring 32 on infrared lamp holder 3, and air-guiding aisle 31 is set on infrared lamp holder 3, by fan 8, the heat that image unit mainboard 5 produces is transported to the space surrounded by light blocking ring 32, sight glass 2 and camera lens 4 through air-guiding aisle 31, demist is carried out to sight glass 2, thus reach can efficiently radiates heat again can the effect of demist.
For the video camera shown in Fig. 2, video camera comprises shell 1 and camera unit, shell 1 is provided with sight glass 2, fan 8 and mount pad 7; Camera unit comprises image unit mainboard 5, camera lens 4 and heat radiation panel beating 6.
Wherein, image unit mainboard 5 is fixedly connected on heat radiation panel beating 6, and between image unit mainboard 5 and heat radiation panel beating 6, be also filled with Heat Conduction Material 61, the setting of heat radiation panel beating 6 and Heat Conduction Material 61, the fixing of image unit mainboard 5 can not only be facilitated and install, the high temperature transmission that image unit mainboard 5 produces can also be made to dispel the heat on panel beating 6, by the contact between heat radiation panel beating 6 and air, better heat is distributed, realize good radiating effect.Simultaneously, heat radiation panel beating 6 is fixed by screws on the mount pad 7 bottom shell 1, thus make image unit entirety be fixedly connected on shell 1, the setting of mount pad 7 can not only facilitate the installation of image unit mainboard 5 and heat radiation panel beating 6 entirety, also by the connection between mount pad 7 and heat radiation panel beating 6, play conductive force, improve radiating effect.
Being provided with infrared lamp holder 3 between the present embodiment sight glass 2 and camera unit, being provided with the through hole for installing camera unit camera lens 4 in the middle part of infrared lamp holder 3, camera lens 4 can carry out image acquisition through sight glass 2.
As shown in Figure 4 and Figure 5, on infrared lamp holder 3, the hole wall of through hole extends to sight glass 2 direction the present embodiment infrared lamp holder 3, forms light blocking ring 32, and light blocking ring 32 and infrared lamp holder 3 are wholely set.
Meanwhile, at infrared lamp holder 3 towards on the side of camera unit, air-guiding aisle 31 is provided with.When mounted, the light blocking ring 32 of infrared lamp holder 3 is close to sight glass 2 and is installed, but keeps certain gap between camera lens 4 and sight glass 2, conducting between air-guiding aisle 31 and this gap.By air-guiding aisle 31, the air flow energy that fan 8 is formed flow between camera lens 4 and sight glass 2, carries out demist to glass vision panel 2.The present embodiment air-guiding aisle 31 has two, and lay respectively at the both sides up and down of infrared lamp holder 3, by two air-guiding aisles 31, after in the gap that air-flow enters between camera lens 4 and sight glass 2 from one of them air-guiding aisle 31, flow out by another air-guiding aisle 31, make video camera inside form the air channel of stable circulation, be convenient to the circulation of internal gas flow, better realize the heat radiation to video camera.And while heat radiation, the air-flow flowed through between camera lens 4 and sight glass 2 can also play the effect of demist to sight glass 2, ensure that video camera is when using out of doors, the clear picture collected, complete.
The present embodiment air-guiding aisle 31 is wind-guiding slope, and the cross section of the dip plane on wind-guiding slope is arc, air-flow is when entering from an entrance of air-guiding aisle 31, by the slope of arc, air-flow can be made better to be fed forward, while change pneumatic convey direction, to avoid the existence because of right-angle side, cause air-flow to form circulation at corner, improve the mobility of air-flow entirety.
Particularly, air-guiding aisle 31 extends inward in through hole from the shell rim of infrared lamp holder 3, and the degree of depth that air-guiding aisle 31 extends internally is greater than the degree of depth of camera lens 4 installation site in described through hole, but be less than the thickness of described infrared lamp holder 3, namely air-guiding aisle 31 is positioned at the opening on light blocking ring 32, open to camera lens 4, in the gap that light blocking ring 32 and sight glass 2 are formed, make air flow energy by air-guiding aisle 31, enter between camera lens 4 and sight glass 2, not only ensure that the unimpeded of the inner air channel of video camera, the demist effect to sight glass 2 can also be realized.Preferably, it is opening between the present embodiment air-guiding aisle 31 and through hole, namely as shown in Figure 4, air-guiding aisle 31 is directly be concavely formed from the side of through hole near camera unit to both sides, simple structure, when video camera internal gas flow is flowed, can be more smooth and easy, better realize to the heat radiation of video camera with except fog effect.
As shown in Figure 3, arrow is the flow direction of video camera internal gas flow.Wherein, from the heat that image unit mainboard 5 produces, after outwards being distributed by heat radiation panel beating 6, utilize the fan 8 be arranged on below heat radiation panel beating 6, sight glass 2 direction of heat to video camera is carried, form thermal current, then pass through the setting of wind guide tank 9, air-flow is more stably carried to air-guiding aisle 31.Due to the gap conducting between air-guiding aisle 31 and camera lens 4, sight glass 2, air current flow can be made on sight glass 2, and the heat directly utilizing image unit mainboard 2 to produce carries out demist to sight glass 2, eliminates the cost that firing equipment brings.Thermal current after sight glass 2, then flows out from the air-guiding aisle 31 infrared lamp holder 3 opposite side, forms stable air channel, makes air flow energy smoothly in video camera internal flow.
It should be noted that, the air-guiding aisle 31 of the present embodiment is not limited to above-mentioned preferred mode, also can be the sidewall from infrared lamp holder 3 through hole near the side of camera unit to infrared lamp holder 3, the tubular conduit offered.Fig. 6 is the structural representation of another embodiment of infrared lamp holder, namely air-guiding aisle 31 is independent pipelines, an opening is in the side of infrared lamp holder 3 near camera unit, another opening is positioned on through-hole side wall, towards the space that camera lens 4, light blocking ring 32 and sight glass 2 are formed, by two openings of air-guiding aisle 31, when air-flow is flowed in video camera, between sight glass 2 and camera lens 4, demist can be carried out to sight glass 2.
Due to the setting of twice air-guiding aisle 31, make, on the side of infrared lamp holder 3 with light blocking ring 32, to be formed with twice projection, the part outside light blocking ring 32 is divided into two depressed parts 33 being used for installation infrared lamp, infrared lamp, by screw, is fixedly connected on depressed part 33.Due to the setting of light blocking ring 32, the infrared light that on depressed part 33, infrared lamp sends can be effectively avoided to enter into the use that camera lens 4 affects camera lens 4.Light blocking ring 32 not only plays interception, and defines a confined space only having conductive channel 31 to be communicated with camera lens 4 and sight glass 2, is convenient to heat to concentrate to blow to sight glass 2 carry out demist.
In the present embodiment, fan 8 is fixedly connected on bottom shell 1, and is positioned at below heat radiation panel beating 6, and fan 8, near heat radiation panel beating 6, can be dispelled the heat by air-out to heat radiation panel beating 6 better.Preferably, wind guide tank 9 is also provided with between fan 8 air outlet and air-guiding aisle 31.By wind guide tank 9, sight glass thermal current being delivered to front that can be more concentrated, demist better effects if, and better control air-flow in the inner overall flow direction of video camera, make the mobility of air-flow higher, flow to more stable, directly can send into air-guiding aisle 31, reach better heat radiation and demist effect.
The design of the infrared lamp holder 3 of the present embodiment integral type, had both played and had led wind action, played again the effect of blocking infrared light, while ensure that best air channel, was more reduction of assembly difficulty and equipment cost relative to existing technology.Further, be also formed with gap between camera lens 4 and sight glass 2, to prevent between camera lens 4 with sight glass 2 direct contacts, and causes the situation that camera lens 4 damages.
Above embodiment is only in order to illustrate technical scheme of the present invention but not to be limited; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the present invention.
Claims (9)
1. a video camera, the infrared lamp holder for installation infrared lamp is provided with between the sight glass of described video camera and camera unit, described video camera is also provided with the fan for dispelling the heat, it is characterized in that: described infrared lamp holder is provided with air-guiding aisle, described air-guiding aisle and the gap conducting between camera lens and sight glass, heat is also blowed sight glass to front through described air-guiding aisle by the heat of described fan extracting image unit mainboard, utilizes the heat of camera unit mainboard for sight glass demist.
2. video camera according to claim 1, is characterized in that: described fan is arranged on below the heat radiation panel beating of camera unit.
3. video camera according to claim 1, is characterized in that: be also provided with wind guide tank between the air outlet of described fan and described air-guiding aisle.
4. video camera according to claim 1, it is characterized in that: in the middle part of described infrared lamp holder, be provided with the through hole for installing camera unit camera lens, the hole wall of described through hole extends to form light blocking ring to sight glass direction, and described light blocking ring and sight glass are close to installation.
5. video camera according to claim 4, it is characterized in that: described light blocking ring is protruding ring-type fence structure, described infrared lamp holder is provided with the depressed part for installation infrared lamp towards the side of sight glass, described depressed area is in the both sides of described light blocking ring.
6. video camera according to claim 4, it is characterized in that: described air-guiding aisle lays respectively at the both sides up and down of described infrared lamp holder, extend inward in described through hole from the shell rim of described infrared lamp holder respectively, the degree of depth that described air-guiding aisle extends internally is greater than the degree of depth of described camera lens installation site in described through hole, but is less than the thickness of described infrared lamp holder.
7. an infrared lamp holder, described infrared lamp fixed seating is between the sight glass and camera unit of video camera, for installation infrared lamp, the through hole installing camera unit camera lens is set in the middle part of described infrared lamp holder, it is characterized in that: the hole wall of described through hole extends to form light blocking ring to sight glass direction, described infrared lamp holder is provided with towards the side of camera unit the air-guiding aisle be communicated with described through hole.
8. infrared lamp holder according to claim 7, it is characterized in that: described light blocking ring is protruding ring-type fence structure, described infrared lamp holder is provided with the depressed part for installation infrared lamp towards the side of sight glass, described depressed area is in the both sides of described light blocking ring.
9. infrared lamp holder according to claim 7, it is characterized in that: described air-guiding aisle lays respectively at the both sides up and down of described infrared lamp holder, extend inward in described through hole from the shell rim of described infrared lamp holder respectively, the degree of depth that described air-guiding aisle extends internally is greater than the degree of depth of described camera lens installation site in described through hole, but is less than the thickness of described infrared lamp holder.
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CN107734219A (en) * | 2017-09-29 | 2018-02-23 | 国网上海市电力公司 | A kind of radiant type defogging method for optical lens |
CN109143736A (en) * | 2018-09-13 | 2019-01-04 | 襄阳市雄狮光电科技有限公司 | A kind of anti-high-low temperature difference camera lens |
CN109379523A (en) * | 2018-12-07 | 2019-02-22 | 大连知你文化产业发展有限公司 | A kind of fine definition open air video camera and remove dew method |
CN110278351A (en) * | 2018-03-15 | 2019-09-24 | 欧姆龙株式会社 | Imaging sensor |
CN111741206A (en) * | 2020-08-03 | 2020-10-02 | 北京中科原动力科技有限公司 | Camera self-cleaning device, camera system and camera system control method |
CN112040093A (en) * | 2019-06-03 | 2020-12-04 | 杭州海康威视数字技术股份有限公司 | Cover assembly of camera and camera |
CN112477814A (en) * | 2020-11-12 | 2021-03-12 | 新石器慧义知行智驰(北京)科技有限公司 | Defogging device and defogging method for unmanned in-vehicle sensor mirror surface |
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CN107734219A (en) * | 2017-09-29 | 2018-02-23 | 国网上海市电力公司 | A kind of radiant type defogging method for optical lens |
CN110278351A (en) * | 2018-03-15 | 2019-09-24 | 欧姆龙株式会社 | Imaging sensor |
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CN110278351B (en) * | 2018-03-15 | 2020-11-24 | 欧姆龙株式会社 | Image sensor with a plurality of pixels |
CN109143736A (en) * | 2018-09-13 | 2019-01-04 | 襄阳市雄狮光电科技有限公司 | A kind of anti-high-low temperature difference camera lens |
CN109379523A (en) * | 2018-12-07 | 2019-02-22 | 大连知你文化产业发展有限公司 | A kind of fine definition open air video camera and remove dew method |
CN112040093A (en) * | 2019-06-03 | 2020-12-04 | 杭州海康威视数字技术股份有限公司 | Cover assembly of camera and camera |
CN112040093B (en) * | 2019-06-03 | 2021-09-03 | 杭州海康威视数字技术股份有限公司 | Cover assembly of camera and camera |
CN111741206A (en) * | 2020-08-03 | 2020-10-02 | 北京中科原动力科技有限公司 | Camera self-cleaning device, camera system and camera system control method |
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